WorldWideScience

Sample records for xut bia ghi

  1. Characterisation of a functional intronic polymorphism in the human growth hormone (GHI gene

    Directory of Open Access Journals (Sweden)

    Millar David S

    2010-06-01

    Full Text Available Abstract The +1169A allele of the A/T single nucleotide polymorphism (SNP; rs2665802, located within intron 4 of the human growth hormone I (GHI gene, has been associated with reduced levels of circulating GH and insulin-like growth factor I, a reduced risk of colorectal cancer and a predisposition to osteoporosis. Whether this intronic SNP is itself the functional polymorphism responsible for exerting a direct effect on GHI gene expression, however, or whether it is instead in linkage disequilibrium with the functional SNP, has been an open question. The evolutionary conservation of the +1169T allele (and the surrounding intronic sequence in the bovine genome, as well as in primate genomes, is, however, suggestive of its functionality. Although a potential alternative splice site spans the location of the +1169 SNP, polymerase chain reaction-based assays failed to yield any evidence for alternative splicing associated with either allele. To determine whether the +1169 SNP, in different allelic combinations with SNPs at -278 (G/T, -57 (T/G and +2103 (C/T, exerts a direct effect on gene expression and/or GH secretion, we performed a series of transfections of various GHI haplotype-expressing constructs into rat GC (somatotroph cells. The results obtained provided evidence to support the contention that the +1169A allele contributes directly to the observed reduction in both GHI gene expression and GH secretion. Part of the apparent influence of the +1169A-bearing allele on GHI gene expression and GH secretion may still, however, be attributable to alleles of additional SNPs in cis to +1169A and located within either the promoter or the 3'-flanking region.

  2. 34 CFR 673.6 - Coordination with BIA grants.

    Science.gov (United States)

    2010-07-01

    ...2010-07-01 false Coordination with BIA grants. 673.6 Section 673.6 Education...FEDERAL SUPPLEMENTAL EDUCATIONAL OPPORTUNITY GRANT PROGRAM General Provisions for the...Programs § 673.6 Coordination with BIA grants. (a) Coordination of BIA...

  3. Use of electrocardiogram (ECG) electrodes for Bioelectrical Impedance Analysis (BIA)

    International Nuclear Information System (INIS)

    BIA is a safe, noninvasive, portable and relatively inexpensive method of estimating body composition that is practical and suitable for individual use and large-scale studies. However, the cost of the electrodes recommended by some BIA manufacturers is too high for developing countries; where very often the long and complicated process of importation reduces the time they can be used. The purpose of this study was to evaluate the use of two types of ECG electrodes (2290 and 2228 by 3M®) in BIA measurements to decrease the costs of the test. The results showed that the 2228 ECG electrodes can be used in BIA measurements for adult's body composition assessment. These electrodes are available in the domestic market and their costs are 92% lower than the electrodes recommended by manufacturer. The results show a new cost-benefit relation for BIA method and make this a more accessible tool for individual tests, large-scale researches and studies in the community.

  4. 25 CFR 166.901 - How will the BIA select an agriculture intern?

    Science.gov (United States)

    2010-04-01

    ...false How will the BIA select an agriculture intern? 166.901 Section 166.901 Indians...901 How will the BIA select an agriculture intern? (a) The purpose of the agriculture intern program is to ensure the future...

  5. 25 CFR 103.18 - How does BIA issue a loan guaranty or confirm loan insurance?

    Science.gov (United States)

    2010-04-01

    ...2010-04-01 false How does BIA issue a loan guaranty or confirm...DEPARTMENT OF THE INTERIOR FINANCIAL ACTIVITIES LOAN GUARANTY... § 103.18 How does BIA issue a loan guaranty or confirm...following occur: (1) BIA issues a signed loan...

  6. Die Bedeutung der bioelektrischen Impedanzanalyse (BIA im geriatrischen Bereich

    Directory of Open Access Journals (Sweden)

    Edlinger E

    2002-01-01

    Full Text Available Die bioelektrische Impedanzanalyse (BIA wird seit ca. 20 Jahren als schnelle und nichtinvasive Methode zur Bestimmung der Körperzusammensetzung eingesetzt. Nach Anlegen von je zwei Meßelektroden an Hand und Fuß des Probanden werden im hochfrequenten Wechselstromfeld (meist 50 kHz bei konstanter Stromstärke die Widerstände Resistanz (Rz, Ohmscher Widerstand und Reaktanz (Xc, kapazitiver Widerstand gemessen. Die physikalischen Grundlagen zur Auswertung der Meßergebnisse sind seit langem bekannt und folgen dem Ohmschen Gesetz. Der menschliche Körper wird modellhaft als System elektrischer Leiter betrachtet, wobei parallel und seriell verknüpfte Gewebe die Leiterbahnen darstellen. Für die Auswertung ist entscheidend, daß verschiedene Gewebe- und Zellarten den Strom unterschiedlich gut leiten. Das Skelett und die Fettmasse leiten den Strom so schlecht, daß sie bei der Widerstandsmessung mittels BIA nicht erfaßt werden. Das Muskelgewebe und die Extrazellulärräume leiten den Strom wesentlich besser und machen den Hauptanteil der Widerstandsmessung mit BIA aus.

  7. Identification of a new C28H14 polycyclic aromatic hydrocarbon as a product of supercritical fuel pyrolysis: Tribenzo[cd,ghi,lm]perylene.

    Science.gov (United States)

    McClaine, Jennifer W; Oña, Jorge O; Wornat, Mary J

    2007-01-01

    Tribenzo[cd,ghi,lm]perylene has been identified as a product of the supercritical pyrolysis of both toluene and Fischer-Tropsch synthetic jet fuel. This identification is based on HPLC/UV/MS data, which show that compound I, eluting immediately after five other C28H14 isomers, is also a C28H14 PAH. The UV spectrum of compound I has features of a benzenoid PAH, of which there are only eight C28H14 isomers. Four of these isomers--benzo[a]coronene, phenanthro[5,4,3,2-efghi]perylene, benzo[cd]naphtho[3,2,1,8-pqra]perylene, and benzo[pqr]naphtho[8,1,2-bcd]perylene--have already been identified as supercritical pyrolysis products by matching their UV spectra with those of respective reference standards. A fifth C28H14 PAH--benzo[ghi]naphtho[8,1,2-bcd]perylene, which does not have a reference standard--has also been recently identified through MS and UV data, use of annellation theory to predict UV spectral characteristics, and length-to-breadth ratio/retention time data. Of the remaining three isomers, bisanthene (IUPAC name phenanthro[1,10,9,8-opqra]perylene) has been determined not to be present in our product mixture, as its UV spectrum does not match that of any of our product PAH. Using annellation theory, we predict the UV spectral characteristics of the two remaining C28H14 benzenoid isomers, for which there are no reference standards (tribenzo[cd,ghi,lm]perylene and naphthaceno[3,4,5,6,7-defghij]naphthacene). Results from this analysis show that the predicted UV spectral features of tribenzo[cd,ghi,lm]perylene match those of compound I--and that those of naphthaceno[3,4,5,6,7-defghij]naphthacene are inconsistent with those of compound I. The length-to-breadth ratio of tribenzo[cd,ghi,lm]perylene also agrees with compound I's HPLC elution behavior. This is the first time that tribenzo[cd,ghi,lm]perylene (IUPAC name phenanthro[2,1,10,9,8,7-pqrstuv]pentaphene) has been identified as a product of fuel pyrolysis or combustion. PMID:17098241

  8. Carotenoids in certain lichens of Bia?owie?a Forest

    OpenAIRE

    Bazyli Czeczuga

    1994-01-01

    Column-, and thin-layer chromatography revealed the presence of the following carotenoids in the thalli of 29 lichen species from Bia?owie?a Forest: ?-carotene, ?-carotene, ?-cryptoxanthin, ?-cryptoxanthin, lutein, 3'-epilutein, zeaxanthin, ?-carotene monoepoxide, lutein epoxide, antheraxanthin, 3'-hydroxyechinenone, ?-doradexanthin, canthaxanthin, astaxanthin, neoxani thin, violaxanthin and mutatoxanthin. The total content of carotenoids ranged from 16.83 (Cladonia rangiferina) to 92...

  9. Preliminary bioelectrical impedance analysis (BIA) equation for body composition assessment in young females from Colombia

    International Nuclear Information System (INIS)

    A previous study showed that reported BIA equations for body composition are not suitable for Colombian population. The purpose of this study was to develop and validate a preliminary BIA equation for body composition assessment in young females from Colombia, using hydrodensitometry as reference method. A sample of 30 young females was evaluated. Inclusion and exclusion criteria were defined to minimize the variability of BIA. Height, weight, BIA, residual lung volume (RV) and underwater weight (UWW) were measured. A preliminary BIA equation was developed (r2 = 0.72, SEE = 2.48 kg) by stepwise multiple regression with fat-free mass (FFM) as dependent variable and weight, height and impedance measurements as independent variables. The quality of regression was evaluated and a cross-validation against 50% of sample confirmed that results obtained with the preliminary BIA equation is interchangeable with results obtained with hydrodensitometry (r2 = 0.84, SEE = 2.62 kg). The preliminary BIA equation can be used for body composition assessment in young females from Colombia until a definitive equation is developed. The next step will be increasing the sample, including a second reference method, as deuterium oxide dilution (D2O), and using multi-frequency BIA (MF-BIA). It would also be desirable to develop equations for males and other ethnic groups in Colombia.

  10. 25 CFR 162.210 - When can BIA grant a permit covering agricultural land?

    Science.gov (United States)

    2010-04-01

    ...When can BIA grant a permit covering agricultural land? 162.210 Section 162...LAND AND WATER LEASES AND PERMITS Agricultural Leases How to Obtain A Lease ...When can BIA grant a permit covering agricultural land? (a) We may grant a...

  11. 25 CFR 166.306 - Can the BIA adjust the grazing capacity?

    Science.gov (United States)

    2010-04-01

    ...2010-04-01 false Can the BIA adjust the grazing capacity? 166.306 Section 166...DEPARTMENT OF THE INTERIOR LAND AND WATER GRAZING PERMITS Land and Operations Management § 166.306 Can the BIA adjust the grazing capacity? Yes. In...

  12. Bioelectrical impedance analysis (BIA) equations validation against hydrodensitometry in a Colombian population

    Science.gov (United States)

    Caicedo-Eraso, J. C.; Gonzalez-Correa, C. A.; Gonzalez-Correa, C. H.

    2013-04-01

    Several studies have shown that the accuracy of BIA results depends of ethnicity, age, gender, hormonal and genetic variations and, so far, there are not specific equations for Colombian population. The purpose was to evaluate reported BIA equations to determine their usefulness in body composition assessment in young females from Colombia using hydrodensitometry as the reference method. A sample of 30 young females was evaluated. Inclusion and exclusion criteria were defined to minimize the variability of BIA. Height, weight, multi-frequency BIA, residual lung volume (RV) and underwater weight (UWW) were measured. Five BIA equations met the inclusion criteria of this study. Three equations overestimated and two equations underestimated body fat (BF). Paired Student t-test and Bland and Altman analysis (p<0.05) showed significant differences in four BIA equations. However, all standard error of estimate (SEE) to BF was greater than 2.7 kg. This study showed that the five selected BIA equations are not valid for estimation of body composition in young females from Colombia. It is recommended to develop BIA equations to improve BF fat assessment in our population.

  13. Bioelectrical impedance analysis (BIA) equations validation against hydrodensitometry in a Colombian population

    International Nuclear Information System (INIS)

    Several studies have shown that the accuracy of BIA results depends of ethnicity, age, gender, hormonal and genetic variations and, so far, there are not specific equations for Colombian population. The purpose was to evaluate reported BIA equations to determine their usefulness in body composition assessment in young females from Colombia using hydrodensitometry as the reference method. A sample of 30 young females was evaluated. Inclusion and exclusion criteria were defined to minimize the variability of BIA. Height, weight, multi-frequency BIA, residual lung volume (RV) and underwater weight (UWW) were measured. Five BIA equations met the inclusion criteria of this study. Three equations overestimated and two equations underestimated body fat (BF). Paired Student t-test and Bland and Altman analysis (p<0.05) showed significant differences in four BIA equations. However, all standard error of estimate (SEE) to BF was greater than 2.7 kg. This study showed that the five selected BIA equations are not valid for estimation of body composition in young females from Colombia. It is recommended to develop BIA equations to improve BF fat assessment in our population.

  14. Carotenoids in certain lichens of Bia?owie?a Forest

    Directory of Open Access Journals (Sweden)

    Bazyli Czeczuga

    2014-02-01

    Full Text Available Column-, and thin-layer chromatography revealed the presence of the following carotenoids in the thalli of 29 lichen species from Bia?owie?a Forest: ?-carotene, ?-carotene, ?-cryptoxanthin, ?-cryptoxanthin, lutein, 3'-epilutein, zeaxanthin, ?-carotene monoepoxide, lutein epoxide, antheraxanthin, 3'-hydroxyechinenone, ?-doradexanthin, canthaxanthin, astaxanthin, neoxani thin, violaxanthin and mutatoxanthin. The total content of carotenoids ranged from 16.83 (Cladonia rangiferina to 92.98 µg g dry wt (Xanthoria parietina. There were differences in carotenoid composition, concentration of each carotenoid, and in the total content in the thalli of four species collected from niches with different insolation.

  15. 25 CFR 162.212 - When will the BIA advertise Indian land for agricultural leases?

    Science.gov (United States)

    2010-04-01

    ...will the BIA advertise Indian land for agricultural leases? 162.212 Section 162.212 Indians ...DEPARTMENT OF THE INTERIOR LAND AND WATER LEASES AND PERMITS Agricultural Leases How to Obtain A Lease § 162.212...

  16. 25 CFR 166.401 - How does the BIA establish grazing rental rates?

    Science.gov (United States)

    2010-04-01

    ...2010-04-01 false How does the BIA establish grazing rental rates? 166.401 Section 166.401 ...AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GRAZING PERMITS Grazing Rental Rates, Payments, and Late Payment...

  17. 25 CFR 166.408 - Is the grazing rental rate established by the BIA adjusted periodically?

    Science.gov (United States)

    2010-04-01

    ... 2010-04-01 2010-04-01 false Is the grazing rental rate established by the BIA adjusted periodically...AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER GRAZING PERMITS Grazing Rental Rates, Payments, and Late Payment...

  18. 25 CFR 171.505 - How does BIA calculate my annual operation and maintenance assessment?

    Science.gov (United States)

    2010-04-01

    ...OPERATION AND MAINTENANCE Financial Matters: Assessments, Billing, and Collections § 171.505 How does BIA calculate my...assessment that is more than your assessment calculated by the method described in subpart (a) of this section, you will...

  19. 25 CFR 103.4 - What kinds of loans will BIA guarantee or insure?

    Science.gov (United States)

    2010-04-01

    ...eligible borrower to conduct a lawful business organized for profit. There are several important exceptions: (a) The business must contribute to the economy...willing to extend the requested financing without a BIA guaranty or...

  20. The Economic Value of Laem Phak Bia Mangrove Ecosystem Services in Phetchaburi Province, Thailand

    OpenAIRE

    Sitthinan Wiwatthanapornchai; Chucheep Piputsitee; Samakkee Boonyawat

    2014-01-01

    Thailand is a one of the nation in Southeast Asia, covered by numerous mangrove areas approximately 244,000 hectares. Phetchaburi province is the one of the province in Thailand where the mangrove area has been increasing continually since King’s Royally Initiated Laem Phak Bia Environmental Research and Development Project has been set up. The mangrove ecosystems functions are vital to the livelihood of the surrounding community. Laem Phak Bia community is one that has been served from man...

  1. Investigação de baixa estatura: aspectos clínicos, laboratoriais e moleculares da insensibilidade ao hormônio de crescimento Short stature investigation: clinical, laboratorial and genetic aspects concerning the trowth hormone insensitivity (GHI

    Directory of Open Access Journals (Sweden)

    Alexander Augusto de Lima Jorge

    2008-08-01

    Full Text Available Neste artigo são descritos os aspectos clínicos, laboratoriais e genéticos da investigação da baixa estatura, dando ênfase para o diagnóstico da insensibilidade ao hormônio de crescimento (IGH. O paciente apresentado possuía características clínicas típicas de pacientes com IGH e em idade pré-púbere seus achados laboratoriais eram compatíveis com este diagnóstico (IGF-1 e IGFBP3 baixos, GH basal e pós-estímulo elevados. No entanto, quando avaliado durante a puberdade, as dosagens de IGF-1 e IGFBP-3 foram normais, dificultando o diagnóstico. O estudo molecular identificou mutação no exon 7 do gene do receptor do hormônio de crescimento (S226I. Discutiram-se os passos realizados para identificar a mutação e demonstrar que ela é responsável pelo fenótipo observado no paciente. Também será feita revisão dos casos de IGH descritos no Brasil e dos novos defeitos moleculares descritos nesta doença.It is reported in this study the clinical, laboratory and genetic aspects of short stature investigation with emphasis to the diagnostic approach of growth hormone insensitivity (GHI. This patient in case presented typical clinical features of GHI and his laboratory findings at prepubertal age were typical of those observed in GHI patients (low IGF-1 and IGFBP-3 levels, with high basal and stimulated GH levels. However, during the puberty, he presented normal IGFBP-3 and IGF-1 levels that hindered the diagnosis. The molecular study disclosed a mutation in exon 7 of growth hormone receptor gene (S226I. The steps that demonstrated the causative effect of this mutation are shown here, and also a review of Brazilian GHI cases is given and new molecular defects in this field are discussed as well.

  2. Investigação de baixa estatura: aspectos clínicos, laboratoriais e moleculares da insensibilidade ao hormônio de crescimento / Short stature investigation: clinical, laboratorial and genetic aspects concerning the trowth hormone insensitivity (GHI)

    Scientific Electronic Library Online (English)

    Alexander Augusto de Lima, Jorge; Maria Adelaide Albergaria, Pereira.

    1056-10-01

    Full Text Available Neste artigo são descritos os aspectos clínicos, laboratoriais e genéticos da investigação da baixa estatura, dando ênfase para o diagnóstico da insensibilidade ao hormônio de crescimento (IGH). O paciente apresentado possuía características clínicas típicas de pacientes com IGH e em idade pré-púber [...] e seus achados laboratoriais eram compatíveis com este diagnóstico (IGF-1 e IGFBP3 baixos, GH basal e pós-estímulo elevados). No entanto, quando avaliado durante a puberdade, as dosagens de IGF-1 e IGFBP-3 foram normais, dificultando o diagnóstico. O estudo molecular identificou mutação no exon 7 do gene do receptor do hormônio de crescimento (S226I). Discutiram-se os passos realizados para identificar a mutação e demonstrar que ela é responsável pelo fenótipo observado no paciente. Também será feita revisão dos casos de IGH descritos no Brasil e dos novos defeitos moleculares descritos nesta doença. Abstract in english It is reported in this study the clinical, laboratory and genetic aspects of short stature investigation with emphasis to the diagnostic approach of growth hormone insensitivity (GHI). This patient in case presented typical clinical features of GHI and his laboratory findings at prepubertal age were [...] typical of those observed in GHI patients (low IGF-1 and IGFBP-3 levels, with high basal and stimulated GH levels). However, during the puberty, he presented normal IGFBP-3 and IGF-1 levels that hindered the diagnosis. The molecular study disclosed a mutation in exon 7 of growth hormone receptor gene (S226I). The steps that demonstrated the causative effect of this mutation are shown here, and also a review of Brazilian GHI cases is given and new molecular defects in this field are discussed as well.

  3. Determinação rápida de hidroquinona usando análise por injeção em batelada (BIA) com detecção amperométrica / Fast determination of hydroquinone by batch injection analysis (BIA) with amperometric detection

    Scientific Electronic Library Online (English)

    Rafael Rodrigues, Cunha; Thiago Faria, Tormin; Eduardo Mathias, Richter; Rodrigo Alejandro Abarza, Munoz.

    Full Text Available [...] Abstract in english A fast analytical method for determination of hydroquinone in pharmaceutical formulations employing batch injection analysis (BIA) with amperometric detection using a boron-doped diamond electrode is described. The supporting electrolyte was a 0.1 mol L-1 H2SO4 solution (the single reagent used for [...] analysis). The method showed good repeatability (RSD of 0.45%, n=20), wide linear range (from 10 to 2000 µmol L-1, R=0.9999), low detection limit (0.016 µmol L-1) and satisfactory recovery values (91-96%). Accuracy of the method was evaluated by comparative analyses using high-performance liquid-chromatography. The ability to replace the electronic pipette by disposable syringes (injection procedure) in BIA systems was also shown.

  4. Przypadek ziarniniaka naczyniowego powsta?ego na pod?o?u rogowacenia bia?ego

    Directory of Open Access Journals (Sweden)

    Helena Rotsztejn

    2005-09-01

    Full Text Available Przedstawiono przypadek 47-letniego rolnika, palacza papierosów, u którego w obr?bie wargi dolnej na pod?o?u rogowacenia bia?ego dosz?o do rozwoju zmiany o typie ziarniniaka naczyniowego. Ze wzgl?du na umiejscowienie zmiany klinicznie podejrzewano rozwój raka kolczystokomórkowego, dlatego pacjenta zakwalifikowano do chirurgicznego zabiegu usuni?cia zmiany chorobowej.

  5. 25 CFR 115.601 - Under what circumstances may the BIA restrict your IIM account through supervision or an...

    Science.gov (United States)

    2010-04-01

    ...restrict your IIM account through supervision or an encumbrance? 115.601...restrict your IIM account through supervision or an encumbrance? (a) The...restrict your IIM account through supervision if the BIA: (1)...

  6. 25 CFR 162.214 - How and when will BIA decide whether to approve an agricultural lease?

    Science.gov (United States)

    2010-04-01

    ...will BIA decide whether to approve an agricultural lease? 162.214 Section 162.214 Indians ...DEPARTMENT OF THE INTERIOR LAND AND WATER LEASES AND PERMITS Agricultural Leases How to Obtain A Lease § 162.214...

  7. 25 CFR 1000.121 - What is an annual funding agreement for a non-BIA program?

    Science.gov (United States)

    2010-04-01

    ... false What is an annual funding agreement for a non-BIA...DEPARTMENT OF THE INTERIOR ANNUAL FUNDING AGREEMENTS UNDER THE TRIBAL SELF-GOVERNMENT ACT AMENDMENTS TO THE INDIAN...Self-Governance Compacts and Funding Agreements Purpose §...

  8. Bioelectrical impedance analysis in clinical practice: implications for hepatitis C therapy BIA and hepatitis C

    Directory of Open Access Journals (Sweden)

    Kahraman Alisan

    2010-08-01

    Full Text Available Abstract Background Body composition analysis using phase angle (PA, determined by bioelectrical impedance analysis (BIA, reflects tissue electrical properties and has prognostic value in liver cirrhosis. Objective of this prospective study was to investigate clinical use and prognostic value of BIA-derived phase angle and alterations in body composition for hepatitis C infection (HCV following antiviral therapy. Methods 37 consecutive patients with HCV infection were enrolled, BIA was performed, and PA was calculated from each pair of measurements. 22 HCV genotype 3 patients treated for 24 weeks and 15 genotype 1 patients treated for 48 weeks, were examined before and after antiviral treatment and compared to 10 untreated HCV patients at 0, 24, and 48 weeks. Basic laboratory data were correlated to body composition alterations. Results Significant reduction in body fat (BF: 24.2 ± 6.7 kg vs. 19.9 ± 6.6 kg, genotype1; 15.4 ± 10.9 kg vs. 13.2 ± 12.1 kg, genotype 3 and body cell mass (BCM: 27.3 ± 6.8 kg vs. 24.3 ± 7.2 kg, genotype1; 27.7 ± 8.8 kg vs. 24.6 ± 7.6 kg, genotype 3 was found following treatment. PA in genotype 3 patients was significantly lowered after antiviral treatment compared to initial measurements (5.9 ± 0.7° vs. 5.4 ± 0.8°. Total body water (TBW was significantly decreased in treated patients with genotype 1 (41.4 ± 7.9 l vs. 40.8 ± 9.5 l. PA reduction was accompanied by flu-like syndromes, whereas TBW decline was more frequently associated with fatigue and cephalgia. Discussion BIA offers a sophisticated analysis of body composition including BF, BCM, and TBW for HCV patients following antiviral regimens. PA reduction was associated with increased adverse effects of the antiviral therapy allowing a more dynamic therapy application.

  9. The Economic Value of Laem Phak Bia Mangrove Ecosystem Services in Phetchaburi Province, Thailand

    Directory of Open Access Journals (Sweden)

    Sitthinan Wiwatthanapornchai

    2014-08-01

    Full Text Available Thailand is a one of the nation in Southeast Asia, covered by numerous mangrove areas approximately 244,000 hectares. Phetchaburi province is the one of the province in Thailand where the mangrove area has been increasing continually since King’s Royally Initiated Laem Phak Bia Environmental Research and Development Project has been set up. The mangrove ecosystems functions are vital to the livelihood of the surrounding community. Laem Phak Bia community is one that has been served from mangrove ecosystem services. This study assessed the economic value of Laem Phak Bia mangrove ecosystem services in an area approximately 237.44 hectares using Participatory Economic Valuation (PEV by the villagers ranking and rating the importance of mangrove ecosystem services with a valuable thing for living that is the rice value. The results showed that this mangrove area was worth a total economic value about 100 million Baht per year or 424 thousand Baht per hectares per year. It could be divided into the value of regulation functions, production functions, habitat functions and information functions, which were about 38, 8, 25, and 29 million Baht per year, respectively.

  10. Relationships among dual-energy X-ray absorptiometry (DXA), bioelectrical impedance (BIA), and ultrasound measurements of body composition of swine

    Science.gov (United States)

    In three separate studies (156 pigs total), DXA, BIA, and ultrasound were compared as methods for measuring live body composition of pigs at 60 and 100-110 kg BWt. DXA measured total body fat and lean content, BIA measurements of resistance (Rs) and reactance (Xc) were used to calculate total body l...

  11. 23 CFR 661.35 - What percentage of IRRBP funding is available for use on BIA and Tribally owned IRR bridges, and...

    Science.gov (United States)

    2010-04-01

    ...non-BIA owned IRR bridges? (a) Up to...available for PE and construction in any fiscal year...Tribally owned IRR bridges. The remaining...available for PE and construction for use on non-BIA owned IRR bridges. (b) At...

  12. Thorough investigations on indoor radon in B?i?a radon-prone area (Romania).

    Science.gov (United States)

    Cuco? Dinu, Alexandra; Cosma, Constantin; Dicu, Tiberius; Begy, Robert; Moldovan, Mircea; Papp, Botond; Ni??, Dan; Burghele, Bety; Sainz, Carlos

    2012-08-01

    A comprehensive radon survey has been carried out in B?i?a radon-prone area, Transylvania, Romania, in 4 localities (B?i?a, Nucet, Fîna?e, and Cîmpani) situated in the vicinity of former Romanian uranium mines. Indoor radon concentrations have been measured in 1128 ground floor rooms and cellars of 303 family houses by using CR-39 diffusion type radon detectors. The annual average of indoor radon concentration for B?i?a area was found to be 241±178 Bq m(-3), which is about two times higher than the average value of 126 Bq m(-3), computed for Romania. About 28% of investigated houses exceed the reference level of radon gas in dwellings of 300 Bq m(-3). The indoor radon measurements on each house have been carried out in several rooms simultaneously with the aim of obtaining a more detailed picture on the exposure to radon in the studied area. An analysis on the variability of radon levels among floors (floor-to-floor variation) and rooms (room-to-room variation) and also the influence of factors like the presence of cellar or the age of the building is presented. The coefficient of variation (CV) within ground floor rooms of the same house (room-to-room variation) ranged between 0.9 and 120.8%, with an arithmetic mean of 46.2%, a large variability among rooms within surveyed dwellings being clearly identified. The mean radon concentration in bedrooms without cellar was higher than in bedrooms above the cellar, the difference being statistically significant (t test, one tail, p0.05). PMID:22664541

  13. Thorough investigations on indoor radon in B?i?a radon-prone area (Romania)

    International Nuclear Information System (INIS)

    A comprehensive radon survey has been carried out in B?i?a radon-prone area, Transylvania, Romania, in 4 localities (B?i?a, Nucet, Fîna?e, and Cîmpani) situated in the vicinity of former Romanian uranium mines. Indoor radon concentrations have been measured in 1128 ground floor rooms and cellars of 303 family houses by using CR-39 diffusion type radon detectors. The annual average of indoor radon concentration for B?i?a area was found to be 241 ± 178 Bq m?3, which is about two times higher than the average value of 126 Bq m?3, computed for Romania. About 28% of investigated houses exceed the reference level of radon gas in dwellings of 300 Bq m?3. The indoor radon measurements on each house have been carried out in several rooms simultaneously with the aim of obtaining a more detailed picture on the exposure to radon in the studied area. An analysis on the variability of radon levels among floors (floor-to-floor variation) and rooms (room-to-room variation) and also the influence of factors like the presence of cellar or the age of the building is presented. The coefficient of variation (CV) within ground floor rooms of the same house (room-to-room variation) ranged between 0.9 and 120.8%, with an arithmetic mean of 46.2%, a large variability among rooms within surveyed dwellings being clearly identified. The mean radon concentration in bedrooms without cellar was higher than in bedrooms above the cellar, the differencethe cellar, the difference being statistically significant (t test, one tail, p 0.05). - Highlights: ? The annual average of indoor radon concentration for B?i?a area was 241 ± 178 Bq m?3. ? A large variability among rooms within surveyed dwellings was clearly evidenced. ? The radon concentrations in bedrooms without cellar were higher than above the cellar. ? The ratio between radon concentration at ground floor and cellar was calculated. ? A wide variation range between ground floor rooms and cellar was reported.

  14. 25 CFR 171.405 - Can I build my own structure or take over responsibility of a BIA structure?

    Science.gov (United States)

    2010-04-01

    ...2010-04-01 false Can I build my own structure or take over...Facilities § 171.405 Can I build my own structure or take over...a BIA structure? You may build a structure on our irrigation...use or take responsibility of one of our structures, but only... (a) Relieves us from any future liability or...

  15. Problem diagnostyki mikologicznej u chorych z ostr? bia?aczk? oraz poddawanych przeszczepom szpiku

    Directory of Open Access Journals (Sweden)

    Urszula Nawrot

    2003-06-01

    Full Text Available Celem pracy by?o okre?lenie cz?sto?ci wyst?powania markerów zaka?enia grzybiczego: mannanu Candida, galaktomannanu Aspergillus, swoistych przeciwcia? anty-Aspergillus i anty-Candida w surowicach dzieci i doros?ych z ostr? bia?aczk? poddanych terapii przeciwnowotworowej oraz okre?lenie korelacji mi?dzy wyst?powaniem poszczególnych markerów a obecno?ci? klinicznych objawów zaka?enia. Grup? badan? stanowi?o 111 pacjentów -40 dzieci i 71 doros?ych. Antygeny oznaczano metod? lateksow? i testami ELISA, a przeciwcia?a hemaglutynacj? po?redni? {Aspergillus i ELISA (Candida. Testem na obecno?? galaktomannanu Aspergillus zdiagnozowano inwazyjn? aspergiloz? (IA u 1 dziecka po przeszczepie szpiku i u 2 doros?ych osób. U 4 osób (2 dzieci i 2 doros?ych, uzyskano wyniki fa?szywie dodatnie, a u 2 pacjentów, u których aspergiloz? potwierdzono badaniami hodowlanymi i mikroskopowymi, testy na obecno?? galaktomannanu pozostawa?y ujemne. Obecno?? mannanu stwierdzono u 10 chorych, wysokie (20 AU/ml miana przeciwcia? anty-mannnan u 8 doros?ych chorych, przy czym u 5 z nich potwierdzono kandydoz? p?uc, a u pozosta?ych kandydoz? b?on ?luzowych. Uzyskane wyniki potwierdzaj?, ?e testy na obecno?? galaktomannanu s? u cz??ci chorych (zarówno dzieci jak i doros?ych jedynym markerem umo?liwiaj?cym prze?yciowe ustalenie etiologii zaka?enia. W diagnostyce kandydozy u doros?ych pacjentów z ostr? bia?aczk? oprócz bada? na obecno?? mannanu nale?y uwzgl?dni? równie? badania poziomu przeciwcia? anty-mannan. Postawienie diagnozy grzybicy inwazyjnej (IFI wymaga analizy stanu klinicznego, wyników bada? radiologicznych oraz mikologicznych z uwzgl?dnieniem testów serologicznych.

  16. Sercowe bia?ko wi???ce kwasy t?uszczowe - wczesny marker uszkodzenia mi??nia sercowego

    Directory of Open Access Journals (Sweden)

    ?ukasz Figiel

    2005-03-01

    Full Text Available W trakcie ostatnich lat obserwowany jest znaczny post?p w dziedzinie diagnostyki kardiologicznej. Jednym zjego aspektów jest zastosowanie wcodziennej praktyce klinicznej nowych biochemicznych markerów kardiologicznych. W?ród nich, niezwykle obiecuj?cym jest sercowe bia?ko wi???ce kwasy t?uszczowe. Biomar-ker ten, cechuj?c si? wy?sz? specyficzno?ci? ni? mioglobina, jest niskocz?steczkowym cytoplazmatycznym bia?kiem uwalnianym do krwioobiegu bardzo wcze?nie, od pocz?tku dolegliwo?ci w klatce piersiowej i mo?e by? bardzo przydatny dla szybkiego potwierdzenia lub wykluczenia ostrego zawa?u mi??nia sercowego. Poni?sza praca stanowi przegl?d najnowszych doniesie? na ten temat.

  17. Molecular Dynamics of Spin Crossover: the (P,T) phase diagram of [Fe(PM-BIA)2(NCS)2

    OpenAIRE

    Marbeuf, A.; Ne?grier, P.; Matar, S. F.; Kabalan, L.; Le?tard, J. F.; Guionneau, P.

    2013-01-01

    The spin crossover properties and the domains of existence of the different phases for the [Fe(PM-BIA)2(NCS)2] complex are obtained from combining DFT and classical molecular dynamics (MD). The potential energy surfaces expressed in the Morse form for Fe-N interactions are deduced from molecular DFT calculations and they allow producing Infra Red and Raman frequencies. These Fe-N potentials inserted in a classical force field lead from MD calculations to the relative energie...

  18. Ropie? jamy brzusznej o etiologii Cryptococcus neoformans jako powik?anie leczenia ostrej bia?aczki promielocytarnej - opis przypadku

    Directory of Open Access Journals (Sweden)

    Barbara Sikorska-Fic

    2004-09-01

    Full Text Available W pracy przedstawiono przebieg zaka?enia Cryptococcus neoformans zlokalizowanego w jelicie grubym u dziewczynki leczonej z powodu ostrej bia?aczki promielocytarnej (AML-M3, po perforacji wrzodu dwunastnicy i udarze niedokrwiennym mózgu. 10-tygodniowe leczenie lekami przeciwgrzybi-czymi by?o skuteczne. Dziecko do 2 lat pozostaje w ca?kowitej remisji choroby nowotworowej i bez objawów zaka?enia grzybiczego.

  19. Density, degeneracy, delocalization-based index of aromaticity (D3BIA)

    Scientific Electronic Library Online (English)

    Caio L., Firme; Sergio E., Galembeck; O. A. C., Antunes; Pierre M., Esteves.

    1397-14-01

    Full Text Available A aromaticidade tem sido exaustivamente discutida e continua sendo um tema misterioso. Nesse trabalho é proposto um novo índice de aromaticidade chamado índice baseado na densidade-degenerescência-deslocalização ou, simplesmente, D3BIA, numa tentativa de lançar nova introspecção sobre esse tema. Ess [...] e índice é baseado na teoria de átomos em moléculas (AIM) e, de certa forma, é suportado pela teoria dos spins acoplandos (SC). A aromaticidade diminui com o número de heteroátomos na molécula aromática, pois a degenerescência diminui, e diminui com o aumento do tamanho do anel do composto aromático porque desfavorece a sobreposição dos estados monoeletrônicos. A relação entre planaridade do anel, sua densidade eletrônica e aromaticidade é também observada. A interação atrativa da ressonância de 6 elétrons pi no diânion ciclobutadieno compensa sua interação repulsiva carbono-carbono enquanto no seu parente dicatiônico a ressonância de 2 elétrons pi é insuficiente para contrabalancear sua interação repulsiva e adota uma estrutura não-plana. Abstract in english Aromaticity has been exhaustedly discussed for several years and it remains as a misterious issue. In this work it is proposed a new index of aromaticity named density, degeneracy and delocalization-based index of aromaticity or simply D3BIA in an attempt to cast new insight and perspective over thi [...] s theme. This index is based on AIM (atoms in molecules) theory and it is somewhat supported by SC (spin-coupled) theory. Aromaticity decreases as the number of heteroatoms in the aromatic molecule increases since degeneracy decreases and it decreases as the ring size of an aromatic compound increases because it disfavors overlap of single-electron states. The relation between planar structures, electron density and aromaticity is also observed. The attractive interaction of 6pi-electron resonance in cyclobutadiene dianion compensate its carbon-to-carbon repulsive interaction while in its dicationic parent the 2pi-electron resonance is insufficient to counterbalance its carbon-to-carbon repulsive interaction and it adopts a puckered structure.

  20. Baltic Sea coastal erosion; a case study from the Jastrz?bia Góra region

    Science.gov (United States)

    U?cinowicz, Grzegorz; Kramarska, Regina; Kaulbarsz, Dorota; Jurys, Leszek; Frydel, Jerzy; Przezdziecki, Piotr; Jegli?ski, Wojciech

    2014-12-01

    The coastline in the Jastrz?bia Góra area can be divided into three major zones of general importance: a beach and barrier section, a cliff section, and a section protected by a heavy hydrotechnical construction. These areas are characterised by a diverse geology and origin, and hence different vulnerability to erosion. In addition, observations have demonstrated a different pace of erosion within each zone. Based on the results obtained by remote sensing methods (analysis of aerial photographs and maps), it has been determined that the coastline in the barrier area, i.e., to the west of Jastrz?bia Góra, moved landwards by about 130 m, in a period of 100 years, and 80 m over about 50 years. A smaller displacement of the shoreline could be observed within the cliff. Between the middle of the twentieth and the start of the twenty-first centuries the shore retreated by about 25 m. However, in recent years, an active landslide has led to the displacement of the uppermost part of the cliff locally up to 25 m. Another issue is, functioning since 2000, a heavy hydrotechnical construction which has been built in order to protect the most active part of the cliff. The construction is not stable and its western part, over a distance of 50 m, has moved almost 2 m vertically downwards and c. 2.5 m horizontally towards the sea in the past two years. This illustrates that the erosional factor does not comprise only marine abrasion, but also involves land-based processes determined by geology and hydrogeology. Changes in the shoreline at the beach and barrier part are constantly conditioned by rising sea levels, the slightly sloping profile of the sea floor and low elevation values of the backshore and dune areas. Cliffs are destroyed by mass wasting and repetitive storm surges that are responsible for the removal of the colluvium which protects the coast from adverse wave effects. Presumably, mass movements combined with groundwater outflow from the cliff, plus sea abrasion cause destabilisation of the cliff protection construction.

  1. Baltic Sea coastal erosion; a case study from the Jastrz?bia Góra region

    Directory of Open Access Journals (Sweden)

    U?cinowicz Grzegorz

    2014-12-01

    Full Text Available The coastline in the Jastrz?bia Góra area can be divided into three major zones of general importance: a beach and barrier section, a cliff section, and a section protected by a heavy hydrotechnical construction. These areas are characterised by a diverse geology and origin, and hence different vulnerability to erosion. In addition, observations have demonstrated a different pace of erosion within each zone. Based on the results obtained by remote sensing methods (analysis of aerial photographs and maps, it has been determined that the coastline in the barrier area, i.e., to the west of Jastrz?bia Góra, moved landwards by about 130 m, in a period of 100 years, and 80 m over about 50 years. A smaller displacement of the shoreline could be observed within the cliff. Between the middle of the twentieth and the start of the twenty-first centuries the shore retreated by about 25 m. However, in recent years, an active landslide has led to the displacement of the uppermost part of the cliff locally up to 25 m. Another issue is, functioning since 2000, a heavy hydrotechnical construction which has been built in order to protect the most active part of the cliff. The construction is not stable and its western part, over a distance of 50 m, has moved almost 2 m vertically downwards and c. 2.5 m horizontally towards the sea in the past two years. This illustrates that the erosional factor does not comprise only marine abrasion, but also involves land-based processes determined by geology and hydrogeology. Changes in the shoreline at the beach and barrier part are constantly conditioned by rising sea levels, the slightly sloping profile of the sea floor and low elevation values of the backshore and dune areas. Cliffs are destroyed by mass wasting and repetitive storm surges that are responsible for the removal of the colluvium which protects the coast from adverse wave effects. Presumably, mass movements combined with groundwater outflow from the cliff, plus sea abrasion cause destabilisation of the cliff protection construction.

  2. Projekt i realizacja bazy do „Atlasu gwar wschodnios?owia?skich Bia?ostocczyzny”

    Directory of Open Access Journals (Sweden)

    Dorota Krystyna Rembiszewska

    2014-12-01

    Full Text Available Project and realization of database for the "Atlas of East Slavic dialects of Bialystok Region”The article presents issues concerning the project of creation of the Atlas of East Slavic dialects of Bialystok Region (Atlas gwar wschodnios?owia?skich Bia?ostocczyzny – AGWB and its realization. The crucial issues are shown from linguistic, information and computer points of view, taking into account the special features of dialectal material. Information referring to the Atlas of East Slavic dialects of Bialystok Region, a publication significant for Slavic linguistic geography, is also presented.The consecutive stages of preparing the base, i.a. preliminary choice of computer tools, suggested database structure, its subsequent modifications along with the E­R model and initial stages of system implementation (export of data, the choice of database administration system, are presented in the text. The problem of creation/modification of the phonetic alphabet (so­called ZRCola typeface vs. AGWB typeface and the aspect of sorting data saved in this alphabet constitute separate issues for consideration.Modifications of data representation system in relation to the initial objec­ tives are discussed in the article, taking into account the future needs of users (connection with GoogleMaps application, hipermedial connections with the system of scanned source materials, etc..

  3. Bioelectrical impedance analysis (BIA) for sarcopenic obesity (SO) diagnosis in young female subjects

    Science.gov (United States)

    González-Correa, C. H.; Caicedo-Eraso, J. C.; S, Villada-Gomez J.

    2013-04-01

    Sarcopenia is defined as a loss of muscle mass depending of ageing and affecting physical function (definition A). A new definition considers excluding mass reduction criterion (definition B). Obesity is pandemic and occurs at all ages. Sarcopenic obesity (SO) implies both processes. The purpose of this study was to compare the results obtained after applying these 2 definitions in 66 aged 22 ± 2.8 years overweight or obese young college women. Percentage body fat (%BF) and skeletal mass index (SMI) were estimated by BIA, muscle function by handgrip strength test (HGS) and physical performance by Harvard step test (HST). There were 9.1% and 90.9% overweight or obese subjects. Twenty nine subjects (43.9%) had decreased HGS and 22 (33.3%) had impaired physical performance. One obese subject (1.5%) met the criteria for sarcopenic obesity by definition A and 9 (13.6%) by definition B. Although a linear regression (? <0.05) showed a very weak association between these variables (r2 = 0.094, 0.037 and 0.275 respectively) it was observed a tendency for HGS, HST and SMI deterioration when %BF increases. However, other confounding factors must be investigated. Probably as the population gets more obese, the problematic of SO will be found earlier in life.

  4. Bioelectrical impedance analysis (BIA) for sarcopenic obesity (SO) diagnosis in young female subjects

    International Nuclear Information System (INIS)

    Sarcopenia is defined as a loss of muscle mass depending of ageing and affecting physical function (definition A). A new definition considers excluding mass reduction criterion (definition B). Obesity is pandemic and occurs at all ages. Sarcopenic obesity (SO) implies both processes. The purpose of this study was to compare the results obtained after applying these 2 definitions in 66 aged 22 ± 2.8 years overweight or obese young college women. Percentage body fat (%BF) and skeletal mass index (SMI) were estimated by BIA, muscle function by handgrip strength test (HGS) and physical performance by Harvard step test (HST). There were 9.1% and 90.9% overweight or obese subjects. Twenty nine subjects (43.9%) had decreased HGS and 22 (33.3%) had impaired physical performance. One obese subject (1.5%) met the criteria for sarcopenic obesity by definition A and 9 (13.6%) by definition B. Although a linear regression (? 2 = 0.094, 0.037 and 0.275 respectively) it was observed a tendency for HGS, HST and SMI deterioration when %BF increases. However, other confounding factors must be investigated. Probably as the population gets more obese, the problematic of SO will be found earlier in life.

  5. Cisovka - the relic population of Abies alba and its relationship to man-made silver-fir stands in Bia?owie?a primeval forest

    OpenAIRE

    Leon Mejnartowicz

    1996-01-01

    In Bia?owie?a Primeval Forest, in 1823 Stanis?aw Górski discovered on the Cisovka Hag, a relic population of European silver-fir (Abies alba Mill.). This population is isolated and most away, 120 km to the North-East, from the border of European-silver-fir distribution. Besides the natural population Cisovka, there are also man-made silver fir stands and clumps in the Polish and Belorussian part of Bia?owie?a Primeval Forest. In the Polish part there are four such artificial stands. If ...

  6. Bia?owie?a Forest (Ne-Poland and Valday Np ( Nw-Russia – Biogeographical Characteristics of Eutrophic Deciduous Forests

    Directory of Open Access Journals (Sweden)

    Matuszkiewicz Jan Marek

    2014-09-01

    Full Text Available During geobotanical studies in the north-eastern border of hemi-boreal zone, in Valday (NW Russia, rare eutrophic deciduous forests dominated by oak Quercus robur were observed. A comparison of these forests with the model of European deciduous forest in Bia?owie?a National Park (NE-Poland indicates a great similarity. Therefore, eutrophic deciduous forests in Valday can be classified to the Querco-Fagetea class, the Fagetalia sylvaticae order and to the Capinion betuli alliance, despite the absence of hornbeam Carpinus betulus in the region. Rarity of eutrophic deciduous forests in Valday region results probably from strong anthropogenic pressure in the past.

  7. Analysis of activity in swine producers group based on agricultural producers association in Bia?a district

    Directory of Open Access Journals (Sweden)

    Damian Knecht

    2013-03-01

    Full Text Available The process of pigs producer groups formation in Poland is quite dynamic. Currently on the pork market 181 groups operate, which includes about 4000 swine producers. The aim of this study was to characterize the activities of the Agricultural Producers Association in Bia?a District. The research tool was a personal questionnaire and the research sample consisted of 30 farmers. It has been shown that after joining the producers group, the investigated households reported an increase in sales volume and improved the flock production parameters. Majority of the respondents were not satisfied with the cooperation with meat processing companies.

  8. Molecular dynamics of spin crossover: The (P, T) phase diagram of [Fe(PM-BIA)2(NCS)2

    International Nuclear Information System (INIS)

    Highlights: • [Fe(PM-BIA)2(NCS)2] is identified in high and low spin states, showing spin crossover. • DFT studies provide charges and Morse potentials used in MD for orthorhombic phase. • DFT and MD simulations reproduce thermodynamics leading to enthalpy variation. • Spin crossover T1/2 calculated within range of experiment from enthalpies and structure. • Calculated (P, T) phase diagram shows monoclinic polymorph in two spin states. - Abstract: The spin crossover properties and the domains of existence of the different phases for the [Fe(PM-BIA)2(NCS)2] complex are obtained from combining DFT and classical molecular dynamics (MD). The potential energy surfaces expressed in the Morse form for Fe–N interactions are deduced from molecular DFT calculations and they allow producing Infra Red and Raman frequencies. These Fe–N potentials inserted in a classical force field lead from MD calculations to the relative energies of the high spin and low spin configurations of the orthorhombic structure. The MD investigations have also allowed assessing the experimental (P, T) phase diagram by showing the monoclinic polymorph in its two spin-states, and generating two triple points

  9. 25 CFR 162.252 - What will BIA do if a violation of an agricultural lease is not cured within the requisite time...

    Science.gov (United States)

    2010-04-01

    ...WATER LEASES AND PERMITS Agricultural Leases Lease Enforcement...BIA do if a violation of an agricultural lease is not cured within...not cure a violation of an agricultural lease within the requisite...from the date on which the extension is granted....

  10. Molecular Dynamics of Spin Crossover: the (P,T) phase diagram of [Fe(PM-BIA)2(NCS)2

    CERN Document Server

    Marbeuf, A; Matar, S F; Kabalan, L; Létard, J F; Guionneau, P

    2013-01-01

    The spin crossover properties and the domains of existence of the different phases for the [Fe(PM-BIA)2(NCS)2] complex are obtained from combining DFT and classical molecular dynamics (MD). The potential energy surfaces expressed in the Morse form for Fe-N interactions are deduced from molecular DFT calculations and they allow producing Infra Red and Raman frequencies. These Fe-N potentials inserted in a classical force field lead from MD calculations to the relative energies of the high spin and low spin configurations of the orthorhombic structure. The MD investigations have also allowed assessing the experimental (P, T) phase diagram by showing the monoclinic polymorph in its two spin- states, and generating two triple points.

  11. Cisovka - the relic population of Abies alba and its relationship to man-made silver-fir stands in Bia?owie?a primeval forest

    Directory of Open Access Journals (Sweden)

    Leon Mejnartowicz

    2014-02-01

    Full Text Available In Bia?owie?a Primeval Forest, in 1823 Stanis?aw Górski discovered on the Cisovka Hag, a relic population of European silver-fir (Abies alba Mill.. This population is isolated and most away, 120 km to the North-East, from the border of European-silver-fir distribution. Besides the natural population Cisovka, there are also man-made silver fir stands and clumps in the Polish and Belorussian part of Bia?owie?a Primeval Forest. In the Polish part there are four such artificial stands. If the seed-producing silver-fir stands really originated from the Cisovka population, then they are a very valuable part of the declining population and an easy accessible seed source. However, if these populations were introduced to the Bia?owie?a Primeval Forest, then they are a potential source of dangerous genetic pollution of the Cisovka population. The relationship of the genetic structure of the Cisovka population to man-made silver-fir-stands in Bia?owie?a Forest was investigated with the help of 17 loci of 1 1 enzyme systems. Genetic diversity of Cisovka population is characterized by the smallest mean number of alleles per locus (Mal= 1.353, includes all loci studied and per polimorphic locus Malp = 2.00. In Cisovka population there is very low-grade of polimorphic loci (Pp = 11.765 with the mean 37.255 for all studied populations. Expected heterozygosity, He = 0.079 revealed very low-grade of genetic diversity in the population. The observed heterozygosity (Ho = 0.123 was similar to this characterictic in other populations. A dendrogram based on Neis genetic distance coefficient (D among 9 silver-fir populations was constructed. Cisovka in the UPGMA dendrogram is a distinct population separated from other ones by a very great genetic distance (D = 0.06. Also two man-made silver-fir (B I and 132 stands are separated from others. Only populations B3 and B4 are combined into one subgroup linked to the population Tomaszów Lubelski. Basing on the received results one should decide that all the four studied artificial stands were introduced to Bia?owie?a Primeval Forest from beyond of this geographical regions. There is some reason to assume (on the GDH2 allele frequency that man-made silver-stands in compartments 453Aa and 498Cg are of eastern provenance. It is rather certain that these stands are not of offspring of Cisovka populations.

  12. Bia?oruskie elementy j?zykowe w rosyjskiej gwarze staroobrz?dowców mieszkaj?cych w regionie suwalsko-augustowskim

    Directory of Open Access Journals (Sweden)

    Dorota Angelika Pa?ko-Koneczniak

    2014-12-01

    Full Text Available Elements of the Belarusian language in the Russian dialect used by the Old Believers living in the Suwa?ki-Augustów regionThe article deals with the Belarusian elements in the Russian dialect of the Old Believers living in Poland. The Old Believers arrived in Poland in the second half of the 18th century. At present they live in the Suwa?ki-Augustów region in the north-eastern Poland. They inhabit mostly two villages in the county of Suwa?ki, namely Gabowe Gr?dy and Bór, which are very close to each other, and three towns: Augustów, Suwa?ki and Sejny. The dialect used by the Polish Old Believers represents the western Central Great Russian dialects characterized by akanie, the so-called Pskov group. They share features which are typical of Pskov. The dialect was also influenced by other north-eastern Belarusian dialects, that is, the ones which were closest to the areas originally inhabited by Old Believers, who migrated in phases. After each phase, their dialect came to reflect some new linguistic influences. A large number of lexemes directly borrowed from Polish, or via the Belarusian language, are found in this dialect, which is also characterized by other features common in Belarusian dialects or the Bulgarian language. By way of illustration, they include the following features: the prosthetic j-, prosthetic v-, the occurrence of the endings –im and –ym in the case of singular masculine adjectives in the locative, promotion of the endings –i and –y in the case of the plural masculine and neutral nouns in the nominative, and the occurrence of lexemes borrowed from the Belarusian language. Bia?oruskie elementy j?zykowe w rosyjskiej gwarze staroobrz?dowców mieszkaj?cych w regionie suwalsko-augustowskimArtyku? po?wi?cony jest problematyce bia?oruskich elementów j?zykowych w rosyjskiej gwarze staroobrz?dowców mieszkaj?cych w Polsce. Staroobrz?dowcy pojawili si? na terytorium Polski w drugiej po?owie XVIII w. Obecnie mieszkaj? w regionie suwalsko-augustowskim w pó?nocno-wschodniej Polsce. Najwi?ksze skupisko staroobrz?dowców znajduje si? w dwóch s?siaduj?cych ze sob? wsiach powiatu augustowskiego – Gabowych Gr?dach i Borze, oraz w miastach Augustów i Suwa?ki. Gwara polskich staroobrz?dowców nale?y do narzecza zachodniego ?rodkowowielkoruskich gwar akaj?cych, tzw. grupy pskowskiej i charakteryzuje si? typowymi cechami pskowskimi. Na gwar? wp?ywa?y tak?e pó?nocno-wschodnie gwary bia?oruskie, czyli gwary znajduj?ce si? najbli?ej terenów macierzystych staroobrz?dowców. Migracja staroobrz?dowców by?a etapowa i po ka?dym etapie ich gwara odzwierciedla?a nowe wp?ywy j?zykowe. W gwarze widoczna jest du?a ilo?? leksemów zapo?yczonych bezpo?rednio z j?zyka polskiego lub za po?rednictwem j?zyka bia?oruskiego. Badana gwara charakteryzuje si? cechami wspólnymi z gwarami bia?oruskimi lub j?zykiem bia?oruskim, np. protetycznym j-, protetycznym v-, wyst?powaniem ko?cówek –im, –ym w miejscowniku liczby pojedynczej w przymiotnikach rodzaju m?skiego, upowszechnieniem ko?cówek –i, –y w mianowniku liczby mnogiej rzeczowników rodzaju m?skiego i nijakiego, wyst?powaniem leksemów zapo?yczonych z j?zyka bia?oruskiego.

  13. Occurrence of fungi and fungus-like organisms in the Horodnianka River in the vicinity of Bia?ystok, Poland.

    Science.gov (United States)

    Kiziewicz, Bozena; Zdrojkowska, Ewa; Gajo, Bernadetta; Godlewska, Anna; Muszy?ska, Elzbieta; Mazalska, Bozenna

    2011-01-01

    Studies of fungi and fungus- like organisms in the northeastern Poland have mainly concentrated on running waters in the vicinity of Bia?ystok, including the Horodnianka River. The main objective was to investigate biodiversity of fungi and fungus-like organisms which take part in decomposition of organic matter commonly found in inland waters. To obtain a complete picture of species composition of fungi and fungus-like organisms in running waters we decided to explore representative sites of the Horodnianka River such as Olmonty, Hryniewicze and Horodniany with close localization of landfill. Fungal species were isolated using baiting technique. Baits of onion skin (Alium cepa), hemp-seeds (Cannabis sativa), impregnated cellophane and snake skin (Natrix natrix) were applied to isolate fungi from water of the Horodnianka River. The fungal community consists of 26 species, 10 species of fungi belonging to class Chytridiomycetes (3), anamorphic fungi (6), and Zygomycetes (1). 16 species belong to fungus-like organisms from class Oomycetes. Most of the recognized species have already been found in other running waters. From all the examined habitats the fungi belonging to 26 species of 18 genera Achlya, Alternaria, Aphanomyces, Aspergillus, Catenophlyctis, Dictyuchus, Fusarium, Karlingia, Lagenidium, Leptomitus, Olpidiopsis, Penicillium, Phlyctochytrium, Pythium, Saprolegnia, Scoliognia, Thraustotheca and Zoophagus were obtained. Certain fungal species like Aphanomyces laevis, Fusarium aqueductum, F. moniliforme, F. oxysporum, Leptomitus lacteus, Saprolegnia feax and S. parasitica were found at all the study sites. Among fungi potentially pathogenic and allergogenic for humans the genera Alternaria, Aspergillus, Fusarium, Lagenidium and Penicillium have already been described. However, the species Lagenidium giganteum and Achlya androgyna are new in the fungal biota of Poland. The greatest number of fungal species occurred in Olmonty (24), the smallest in Horodniany (13). Presence of fungi such as Leptomitus lacteus, Fusarium aqueductum in the water of the Horodnianka River offers the possibility of using them as indicators of water quality. PMID:22165737

  14. Automated ground-based remote sensing measurements of greenhouse gases at the Bia?ystok site in comparison with collocated in situ measurements and model data

    Science.gov (United States)

    Messerschmidt, J.; Chen, H.; Deutscher, N. M.; Gerbig, C.; Grupe, P.; Katrynski, K.; Koch, F.-T.; Lavri?, J. V.; Notholt, J.; Rödenbeck, C.; Ruhe, W.; Warneke, T.; Weinzierl, C.

    2012-08-01

    The in situ boundary layer measurement site in Bia?ystok (Poland) has been upgraded with a fully automated observatory for total greenhouse gas column measurements. The automated Fourier Transform Spectrometer (FTS) complements the on-site in situ facilities and FTS solar absorption measurements have been recorded nearly continuously in clear and partially cloudy conditions since March 2009. Here, the FTS measurements are compared with the collocated tall tower data. Additionally, simulations of the Jena CO2 inversion model are evaluated with the Bia?ystok measurement facilities. The simulated seasonal CO2 cycle is slightly overestimated by a mean difference of 1.2 ppm ± 0.9 ppm (1?) in comparison with the FTS measurements. CO2 concentrations at the surface, measured at the tall tower (5 m, 90 m, 300 m), are slightly underestimated by -1.5 ppm, -1.6 ppm, and -0.7 ppm respectively during the day and by -9.1 ppm, -5.9 ppm, and -1.3 ppm during the night. The comparison of the simulated CO2 profiles with low aircraft profiles shows a slight overestimation of the lower troposphere (by up to 1 ppm) and an underestimation in near-surface heights until 800 m (by up to 2.5 ppm). In an appendix the automated FTS observatory, including the hardware components and the automation software, is described in its basics.

  15. O passeio de Bia (vídeo: apresentação e validade interna e externa de um recurso para a promoção de habilidades sociais de pré-escolares

    Directory of Open Access Journals (Sweden)

    Camila Negreiros Comodo

    2011-01-01

    Full Text Available El aprendizaje de habilidades sociales puede ocurrir de forma natural, sin embargo cuando eso no ocurre, es necesario crear condiciones para ese aprendizaje. Una de esas condiciones es el uso de diferentes recursos (libros, videos, juegos asociados o no la programas de habilidades sociales. Este trabajo describe el proceso y lo producto de la elaboracion de un video en que el personaje principal (Bia presenta modelo de alternativas de habilidades sociales delante de seis demandas: hacer pedido su madre, rechazar la oferta de ser llevado en coche, solucionar una disputa entre amigos, ayudar una senora a cruzar la calle, hacer pedido y negociar para tomar un helado, y hacer invitaciones. Las etapas de pre.produccion, produccion, filmacion y postproduccion del video se describen, y los indicadores de validez interna y externa obtenidos posteriormente se discuten.

  16. Antimony, Arsenic and Chromium Speciation Studies in Bia?a Przemsza River (Upper Silesia, Poland Water by HPLC-ICP-MS

    Directory of Open Access Journals (Sweden)

    Magdalena Jab?o?ska-Czapla

    2015-04-01

    Full Text Available In this paper the total concentration of As, Cr, Sb, pH and the red-ox potential of water and sediment samples of the Bia?a Przemsza River were determined. The arsenic (AB, MMA, DMA, As(III, As(V, chromium (Cr(III, Cr(VI and antimony (Sb(III, Sb(V forms were studied by HPLC-ICP-MS. Ions were successfully separated on Hamilton PRP-X100: (AB, MMA, DMA, As(III, As(V, Dionex Ion Pac AS-7 (Sb(III, Sb(V and Dionex IonPac AG7 columns: Cr(III, Cr(VI with LOD 0.16 ?g/L, 0.08 ?g/L, 0.09 ?g/L, 0.012 ?g/L, 0.08 ?g/L, 0.12 ?g/L, 0.009 ?g/L, 0.012 ?g/L, 0.19 ?g/L, 0.37 ?g/L, respectively. The simplified BCR three-step sequential chemical extraction was performed on the bottom sediment samples. The samples were collected monthly, between April and December 2014, at five sampling points. Large contents of manganese, lead, cadmium and zinc were found in the Bia?a Przemsza River water. In December 2014, the lead content in the bottom sediment in S?awków was nearly 6000 mg/kg. In the river water, only the inorganic arsenic speciation forms were found. Sb(V, As(V and Cr(III were dominant. Studies have shown that arsenic, antimony and chromium were mainly bound to oxides, organic matter and sulphides in the bottom sediments.

  17. Participation and Protected Areas Governance: the Impact of Changing Influence of Local Authorities on the Conservation of the Bia?owie?a Primeval Forest, Poland

    Directory of Open Access Journals (Sweden)

    Jouni Paavola

    2012-03-01

    Full Text Available According to the new conservation paradigm, protected areas should contribute to the socioeconomic development of host communities, and the latter ought to be included in participatory decision making concerning these areas. However, the understanding of participation is ambiguous and there are at least three major approaches, which may have different impacts on the governance of protected areas. We examine the case of the Bia?owie?a Primeval Forest in order to trace the effectiveness of changing modes of participation as well as to discuss the limitations and problems of public participation. Between 1918 and 2010, the role of local authorities changed from no influence to limited control over decision making regarding designation and enlargement of the Bia?owie?a National Park (BNP. As a result of these changes, attempts to enlarge the BNP over the whole forest were undermined. The evidence shows that power relations and instrumental reasons constituted the main drivers of the changing participation pattern with deliberative rationale lacking. As a result, the conservation goals were only partially achieved. We argue that when interests are clearly conflicting and win–win solutions are difficult to reach, room for constructive participation may be limited. In these circumstances, public involvement may turn into yet another venue for a power play between actors with vested interests, without bringing gains in legitimacy or new policy options. This is especially the case for countries with a relatively short democratic record where the government lacks the consistency and capacity to steer the process over the longer term.

  18. The role of land-use visions for protection of forest landscapes: the Bia?owie?a Forest (Poland) El rol de las visiones del uso del suelo en la protección de los paisajes forestales: el bosque de Bialowieza (Polonia)

    OpenAIRE

    Barbara Bo??tka

    2012-01-01

    The work concentrated on relations between the issues of use and protection that developed in the Polish part of the Bia?owie?a Forest last century, particularly during the post-war decades. Owing to extraordinary natural values, the area deserves very careful protection, however, negative impacts on the landscape have been widely observed. The changes involving perforation and fragmentation of forest cover caused by continuous logging are accompanied by spatial disorder in built ar...

  19. Poikilodermia jako objaw choroby przeszczep przeciw gospodarzowi u pacjenta po przeszczepie szpiku kostnego z powodu przewlek?ej bia?aczki szpikowej - opis przypadku

    Directory of Open Access Journals (Sweden)

    Anna Rosi?ska

    2007-03-01

    Full Text Available Choroba przeszczep przeciw gospodarzowi jest jednym z cz?stszych powik?a? po przeszczepieniu narz?dów i szpiku kostnego oraz po transfuzji krwi i jej produktów zawieraj?cych immunokompetentne limfocyty. U podstaw choroby przeszczep przeciw gospodarzowi (GVHD le?y proliferacja limfocytów z przeszczepianych tkanek, które atakuj? narz?dy gospodarza, najcz??ciej skór?. Wyró?niamy postaæ ostr? GVHD, w której objawy pojawiaj? si? po ok. 3 tygodniach po wykonaniu transplantacji oraz postaæ przewlek?? GVHD, w przebiegu której pierwsze symptomy obserwuje si? ponad 100 dni od zabiegu. Niespecyficzne i bardzo ró?norodne zmiany skórne, zarówno w ostrej, jak i w przewlek?ej postaci choroby mog? byæ znamiennym objawem choroby przeszczep przeciw gospodarzowi. Najbardziej charakterystyczne dla GVHD s?zmiany twardzinopodobne. Objawy sugeruj?ce GVHD mog? byæ te? sprowokowane przez niektóre leki. Podkre?la si? te? liczne podobie?stwa mi?dzy GVHD a liszajem p?askim. Praca przedstawia przypadek pacjenta z poikilodermia, która mo?e byæ jednym z objawów GVHD. Pierwsze zmiany na skórze pojawi?y si? ok. 3 tygodnie po przeszczepieniu szpiku z powodu przewlek?ej bia?aczki szpikowej i by?y jedynym objawem GVHD.

  20. The origin of the Avram Iancu U-Ni-Co-Bi-As mineralization, B?i?a (Bihor) metallogenic district, Bihor Mts., Romania

    Science.gov (United States)

    Zajzon, Norbert; Szentpéteri, Krisztián; Szakáll, Sándor; Kristály, Ferenc

    2015-04-01

    The B?i?a metallogenic district in the Bihor Mountains is a historically important mining area in Romania. Uranium mining took place between 1952 and 1998 from various deposits, but very little is known about the geology and mineralogy of these deposits. In this paper, we describe geology and mineralogy of uranium mineralization of the Avram Iancu uranium mine from waste dump samples collected before complete remediation of the site. Texturally and mineralogically complex assemblages of nickeline, cobaltite-gersdorffite solid solution, native Bi, Bi-sulfosalts, molybdenite, and pyrite-chalcopyrite-sphalerite occur with uraninite, "pitchblende," and brannerite in most of the ore samples. The association of nickel, cobalt, and arsenic with uranium is reminiscent of five-element association of vein type U-Ni-Co-Bi-As deposits; however, the Avram Iancu ores appear to be more replacement-type stratiform/stratabound. Avram Iancu ore samples contain multistage complex, skarn, uranium sulfide, arsenide assemblages that can be interpreted to have been formed in the retrograde cooling stages of the skarn hydrothermal system. This mineralizing system may have built-up along Upper Cretaceous-Paleogene "Banatite" intrusions of diorite-to-granite composition. The intrusions crosscut the underlying uraniferous Permian formations in the stacked NW-verging Biharia Nappe System. The mineralization forms stacked, multilayer replacement horizons, along carbonate-rich lithologies within the metavolcanic (tuffaceous) Muncel Series. Mineral paragenesis and some mineral chemistry suggest moderate-to-high <450, i.e., 350-310 °C, formation temperatures for the uranium sulfide stage along stratigraphically controlled replacement zones and minor veins. Uranium minerals formed abundantly in this early stage and include botryoidal, sooty and euhedral uraninite, brannerite, and coffinite. Later and/or lower-temperature mineral assemblages include heterogeneous, complexly zoned arsenide-sulfarsenide solid solutions associated with minute but abundant uranium minerals. Within the later arsenide-sulfarsenide mineral assemblage, there is great variation in Ni, Co, and S content with generally increasing arsenic content. Uranium minerals in this late-stage assemblage include very fine euhedral uraninite and brannerite inclusions in arsenide-sulfarsenide minerals. Native bismuth and Bi-sulfosalt krupkaite are observed in this As-S-rich assemblage strongly associated with cobaltite.

  1. Estimación del agua corporal total y del peso seco, usando impedancia bioeléctrica tetrapolar de multifrecuencia (BIA-4) en pacientes en hemodiálisis / Total body water and dry weight estimation by using multi-frequency tetrapolar bioelectrical impedance

    Scientific Electronic Library Online (English)

    Doris, Ramírez de Peña; Dagoberto, Almanza; Luis Alberto, Ángel.

    2015-01-01

    Full Text Available Antecedentes. La medición del "peso seco" en pacientes renales se ha tornado difícil por el sinnúmero de variables que en él intervienen, dada la importancia de conocerlo por cuanto con él se determina el tratamiento diálitico, farmacólogico y nutricional se ha trabajado en diferentes ecuaciones y m [...] étodos para obtenerlo. Objetivo. Describir la composición corporal, el agua corporal total y el peso seco de pacientes con enfermedad renal en Hemodiálisis Materiales y Métodos. Se realizó un estudio descriptivo transversal en seis fases, desde el año 2001 al 2010. Con el método de BIA-1 Y BIA-4 (bioimpedancia de unifrecuencia y tetrapolar) y la ecuación Ramírez-Almanza. Para la determinación del peso seco se utilizaron los valores de normovolemia e hipervolemia y se utilizó un nuevo instrumento para diagnóstico nutricional VGS-MIS. Resultados. El 50% de los pacientes estudiados tenían un diagnóstico de Diabetes e Hipertensión, el 87% con riesgo leve de desnutrición, solo el 3% sin riesgo de desnutrición. El punto de cohorte de la Resistencia dada por la bioimpedancia de 550 permite determinar que pacientes con valores por debajo de éste son sintomáticos con una alta sensibilidad 73% y una especificidad de 50%. Para el agua total corporal es posible utilizar la ecuación Ramirez-Almanza pues tiene una buena correlacion mediana (0.76)con el índice de impedancia de Kushner. La VGS-MIS es el mejor método de valoración encontrada hasta ahora para paciente renal porque involucra diferentes parámetros físicos, nutricionales, clìnicos y bioquímicos. Conclusión. El uso de la Bioimpedancia en paciente en hemodiálisis ha permitido una mayor exactitud en el cálculo del agua corporal total, peso seco y estado nutricional de los pacientes en hemodiálisis. Abstract in english Background. Dry weight assessment in renal patients has got difficult because of many variables which are taken into account to do it. Because it is used to determine the dialytic, pharmacological and nutritional treatment in such patients, it has worked on different equations and methods in order t [...] o obtain it. Objetive. To describe body composition, total body water and dry weight of patiens who suffer from renal disease and are under hemodialysis. Materials and methods. A transversal descriptive study was carried out by six phases from the year 2001 to 2010. It was used the Unifrequency Tetrapolar Bioimpedance (BIA-1), the Multifrequency Tetrapolar Bioimpedance (BIA-4) and the Ramírez-Almanza equation. Normovolemia and hipervolemia values were used to establish dry weight and a new instrument was used in nutritional diagnosis to global subjective valuation in renal patient under hemodialysis, the Malnutrition Inflammation Score (MIS). Results. 50% of the studied patients had a diabetes and hipertension diagnosis, 87% were in a low risk of desnutrition, just 3% without any risk of desnutrition. The Resistance cohort point given by the bioimpedance of 550 allows to determine who patients with values under of this are somatics with 73% a hight sensibility and a 50% specificity. To total water weight it is possible to use the Ramirez-Almanza equation due to it has a good mediana correlation (0.76) with the Kushner Impedance Index. VGS-MIS is the best assessment method used until know on renal patient because it involves different physic, nutritional, clinic and biochemic parameters. Conclusion. Bioimpedance use on patient under hemodialysis has led a higher precision in the total body water, dry weight and nutritional state in such patients.

  2. The role of land-use visions for protection of forest landscapes: the Bia?owie?a Forest (Poland El rol de las visiones del uso del suelo en la protección de los paisajes forestales: el bosque de Bialowieza (Polonia

    Directory of Open Access Journals (Sweden)

    Barbara Bo??tka

    2012-01-01

    Full Text Available The work concentrated on relations between the issues of use and protection that developed in the Polish part of the Bia?owie?a Forest last century, particularly during the post-war decades. Owing to extraordinary natural values, the area deserves very careful protection, however, negative impacts on the landscape have been widely observed. The changes involving perforation and fragmentation of forest cover caused by continuous logging are accompanied by spatial disorder in built areas and their vicinities resulting from tourism development. The aim of the research was to identify the underlying forces of negative tendencies and simultaneously, obstacles to progress in nature conservation of the area. Comparison of views and visions of land-use and management of the Forest showed that great differences in attitudes, applied perspectives and expectations to the Bia?owie?a Forest exist. The study revealed the importance of a socio-cultural dimension for a current stage of landscape evolution. This influence is connected with a steady pressure on wood exploitation and results, at least partially, from a strong position of forest administration in this area and from specific land-use visions emphasizing economic services of the forest. Noteworthy, actions undertaken across the country and numerous efforts to extend protection of the area have not succeeded so far. It is argued that underestimation of natural values expressed by local communities in addition to weaknesses of the state’s environmental law may bring serious hazards to the analysed landscape and affect the whole system of nature conservation in Poland.Esta investigación estudió las relaciones entre el uso y protección del bosque Bia?owie?a, Polonia, durante el último siglo, particularmente en las décadas de la post-guerra. Debido a los extraordinarios valores naturales, esta área necesita una protección muy especial. Sin embargo, se han observado diversos impactos negativos sobre el paisaje. Los cambios implicaron perforación y fragmentación del bosque causados por la continua tala de árboles, debido a la expansión urbana asociada al desarrollo turístico. El objetivo de esta investigación fue identificar los forzantes subyacentes de tendencia negativa y los obstáculos para el progreso de la conservación de la naturaleza en la zona. Comparación de puntos de vista, visiones de uso del suelo y manejo del bosque, evidenciaron importantes diferencias en actitudes, perspectivas y expectativas aplicadas al bosque de Bia?owie?a. El estudio reveló la importancia de la dimensión socio-cultural en el estado actual de evolución del paisaje. Esta influencia está relacionada con una presión constante sobre la explotación maderera, por lo menos parcialmente, desde una fuerte posición de la administración forestal en esta área y desde visiones específicas de uso de suelo que enfatizan los servicios económicos de los bosques. Cabe destacar, que acciones realizadas en todo el país y los numerosos esfuerzos para ampliar las áreas de protección no han tenido éxito hasta el momento. Se argumenta que la subestimación de los valores naturales expresada por las comunidades locales, además de las debilidades de la legislación ambiental del Estado, pueden traer serias amenazas para el paisaje analizado y afectar a todo el sistema de conservación de la naturaleza en Polonia.

  3. The role of land-use visions for protection of forest landscapes: the Bia?owie?a Forest (Poland) / El rol de las visiones del uso del suelo en la protección de los paisajes forestales: el bosque de Bialowieza (Polonia)

    Scientific Electronic Library Online (English)

    Barbara, Bo& #380; & #281; tka.

    Full Text Available Esta investigación estudió las relaciones entre el uso y protección del bosque Bia?owie?a, Polonia, durante el último siglo, particularmente en las décadas de la post-guerra. Debido a los extraordinarios valores naturales, esta área necesita una protección muy especial. Sin embargo, se han observado [...] diversos impactos negativos sobre el paisaje. Los cambios implicaron perforación y fragmentación del bosque causados por la continua tala de árboles, debido a la expansión urbana asociada al desarrollo turístico. El objetivo de esta investigación fue identificar los forzantes subyacentes de tendencia negativa y los obstáculos para el progreso de la conservación de la naturaleza en la zona. Comparación de puntos de vista, visiones de uso del suelo y manejo del bosque, evidenciaron importantes diferencias en actitudes, perspectivas y expectativas aplicadas al bosque de Bia?owie?a. El estudio reveló la importancia de la dimensión socio-cultural en el estado actual de evolución del paisaje. Esta influencia está relacionada con una presión constante sobre la explotación maderera, por lo menos parcialmente, desde una fuerte posición de la administración forestal en esta área y desde visiones específicas de uso de suelo que enfatizan los servicios económicos de los bosques. Cabe destacar, que acciones realizadas en todo el país y los numerosos esfuerzos para ampliar las áreas de protección no han tenido éxito hasta el momento. Se argumenta que la subestimación de los valores naturales expresada por las comunidades locales, además de las debilidades de la legislación ambiental del Estado, pueden traer serias amenazas para el paisaje analizado y afectar a todo el sistema de conservación de la naturaleza en Polonia. Abstract in english The work concentrated on relations between the issues of use and protection that developed in the Polish part of the Bia?owie?a Forest last century, particularly during the post-war decades. Owing to extraordinary natural values, the area deserves very careful protection, however, negative impacts o [...] n the landscape have been widely observed. The changes involving perforation and fragmentation of forest cover caused by continuous logging are accompanied by spatial disorder in built areas and their vicinities resulting from tourism development. The aim of the research was to identify the underlying forces of negative tendencies and simultaneously, obstacles to progress in nature conservation of the area. Comparison of views and visions of land-use and management of the Forest showed that great differences in attitudes, applied perspectives and expectations to the Bia?owie?a Forest exist. The study revealed the importance of a socio-cultural dimension for a current stage of landscape evolution. This influence is connected with a steady pressure on wood exploitation and results, at least partially, from a strong position of forest administration in this area and from specific land-use visions emphasizing economic services of the forest. Noteworthy, actions undertaken across the country and numerous efforts to extend protection of the area have not succeeded so far. It is argued that underestimation of natural values expressed by local communities in addition to weaknesses of the state’s environmental law may bring serious hazards to the analysed landscape and affect the whole system of nature conservation in Poland.

  4. St??enie bia?ka C-reaktywnego o wysokiej czu?o?ci (hs-CRP, jako wysokoczu?ego markera dysfunkcji ?ródb?onka w pomenopauzalnej hormonoterapii

    Directory of Open Access Journals (Sweden)

    Józef Krzysiek

    2011-09-01

    Full Text Available Wprowadzenie: We wspó?czesnej medycynie powa?n? rol? prognostyczn? pe?ni? okre?lone markery stanu zapalnego. Szczególne znaczenie tych obserwacji klinicznych dotyczy okresu oko?o- i pomenopauzalnego u kobiet. Liczba markerów zapalnych zwi?zanych z dysfunkcj? ?ródb?onka wci?? ro?nie. Nale?y do nich mi?dzy innymi wysokoczu?e bia?ko C-reaktywne (hs-CRP. Cel pracy: Celem badania by?a ocena wp?ywu trzech sposobów leczenia hormonalnego, w zale?no?ci od dawki estrogenu, sposobu jego poda?y oraz dobranego gestagenu na zachowanie si? hs-CRP u kobiet w okresie menopauzalnym z objawami zespo?y klimakterycznego. Materia? i metodyka: Badaniem ogó?em zosta?o obj?tych 60 zdrowych kobiet w wieku oko?omenopauzalnym (51±3 lata z poziomem FSH powy?ej 25 mIU/ml, z wyst?puj?cymi objawami zespo?u klimakterycznego. Pacjentki podzielono na 3 grupy, w których zastosowano ró?ne formy hormonoterapii. Grupa kontrolna sk?ada si? z 20 zdrowych ochotniczek, bez objawów zespo?u klimakterycznego, w okresie menopauzalnym, dobranych pod wzgl?dem wieku i masy cia?a. Wszystkie pacjentki, leczone i w grupie kontrolnej, by?y seronegatywne w kierunku Chlamydia pneumoniae, zarówno przed w??czeniem do badania, jak i po jego zako?czeniu. Okres obserwacji wynosi? 6 miesi?cy. Wyniki: Po 6 miesi?cach stosowania przezskórnych estrogenów st??enie hs-CRP obni?a?o si? znamiennie statystycznie przy dawce estrogenu 37,5 ug/24 godz. (p=0,015, a niezamiennie przy dawce wy?szej. Natomiast wzrasta?o w grupie nie stosuj?cej leczenia hormonalnego (p=0,009 oraz stosuj?cej terapi? doustn? (p=0,019. Wnioski: Przezskórna estrogenoterapia po menopauzie, nie indukuje wzrostu st??enia markera systemowej odpowiedzi zapalnej o uznanej roli w patologii ?ciany naczy?, jak hs-CRP, tak jak obserwuje si? to w grupie ze z?o?on? doustn? hormonoterapi?. S?owa kluczowe: wysokoczu?e bia?ko C-reaktywne (hs-CRP, terapia hormonalna, menopauza, ateroskleroza

  5. Metody diagnostyczne niestabilnej i p?kni?tej blaszki mia?d?ycowej, z uwzgl?dnieniem zastosowania osoczowego bia?ka typu A zwi?zanego z ci??? - PAPP-A

    Directory of Open Access Journals (Sweden)

    Joanna Dudziak

    2011-12-01

    Full Text Available Szacuje si?, ?e w wi?kszo?ci krajów europejskich choroba wie?cowa jest stwierdzana si? u 20-40 tysi?cy osób w przeliczeniu na milion mieszka?ców. Rocznie w Polsce hospitalizowanych jest ok. 200 tysi?cy pacjentów z ostrym zespo?em wie?cowym (OZW, z czego ok. 2/3 stanowi? przypadki z niestabiln? dusznic? bolesn? (UA i zawa?em serca bez uniesienia odcinka ST (NSTEMI, których cz?sto?? zwi?ksza si? w przeciwie?stwie do liczby zawa?ów z uniesieniem odcinka ST (STEMI. Dzi?ki odkryciom sekwencji zdarze? doprowadzaj?cych do powstania OZW, coraz wi?cej uwagi po?wi?ca si? charakterystyce podatnej na p?kni?cie blaszki mia?d?ycowej. Nowoczesna kardiologia k?adzie nacisk na prewencj? procesu destabilizacji blaszki mia?d?ycowej, który mo?e doprowadzi? do utraty ?ywotno?ci miokardium. Ogromna ró?norodno?? zdarze? zachodz?cych w ?cianie naczynia w przebiegu mia?d?ycy wi??e si? z rozwojem wielu metod diagnostycznych, pocz?wszy od biologii molekularnej, na zaawansowanych metodach obrazowych ko?cz?c. Brakuje jednak testu, który wyznaczy?by krytyczny etap kaskady niedokrwienia, czyli transformacj? blaszki stabilnej w niestabiln?. Marker taki umo?liwi?by podj?cie leczenia przed wyst?pieniem ostrego niedokrwienia, a jak wskazuj? ostatnie badania du?e nadzieje wi??e si? z osoczowym ci??owym bia?kiem typu A (PAPP-A.

  6. Operational Solar Forecasting System for DNI and GHI for Horizons Covering 5 Minutes to 72 Hours

    Science.gov (United States)

    Coimbra, C. F.

    2014-12-01

    I will describe the methodology used to develop and deploy operationally a comprehensive solar forecasting system for both concentrated and non-concentrated solar technologies. This operational forecasting system ingests data from local telemetry, remote sensing and Numerical Weather Prediction (NWP) models, processes all the diferent types of data (time series, sky images, satellite images, gridded data, etc.) to produce concatenated solar forecasts from 5 minutes out to 72 hours into the future. Each forecast is optimized with stochastic learning techniques that include input selection, model topology optimization, model output statistics, metric fitness optimization and machine learning. These forecasts are used by solar generators (plant managers), utilities and independent system operators for operations, scheduling, dispatching and market participation.

  7. EPA Facility Registry Service (FRS): BIA

    U.S. Environmental Protection Agency — This web feature service contains location and facility identification information from EPA's Facility Registry Service (FRS) for the subset of facilities that link...

  8. Warto?? prognostyczna ilo?ciowego oznaczania sercowego bia?ka wi???cego kwasy t?uszczowe (h-FABP w grupie chorych z ostrym zespo?em wie?cowym

    Directory of Open Access Journals (Sweden)

    Ma?gorzata Wraga

    2009-06-01

    Full Text Available Wprowadzenie: Zawa? mi??nia sercowego wraz z powik?aniami stanowi jeden z najpowa?niejszych problemów wspó?czesnej kardiologii klinicznej. Spo?ród markerów biochemicznych, bia?ko sercowe wi???ce kwasy t?uszczowe (h-FABP, odznacza si? wysok? czu?o?ci? i swoisto?ci? we wczesnej fazie zawa?u. Od kilku lat dost?pny jest jako?ciowy test oznaczania h-FABP (poin ofcare test - POCT CardioDetect med., a od niedawna jest mo?liwa densy-tometryczna analiza ilo?ciowa tego wyniku przy u?yciu aparatu CardioDetect quant. Warto?? diagnostyczna h-FABP jest niepodwa?alna, natomiast, stosunkowo niewiele jest doniesie? zwi?zanych z ocen? jego warto?ci prognostycznej po ostrym zespole wie?cowym (OZW. Cel pracy: Celem badania by?a ocena warto?ci prognostycznej wczesnego, ilo?ciowego oznaczania h-FABP wodniesieniu do wyst?powania powa?nych uprzednio zdefiniowanych zdarze? sercowych i zwi?zanego z tym rokowania odleg?ego (180 dni w grupie 104 pacjentówz OZW. Materia? i metodyka: Do badania w??czonych zosta?o 104 pacjentówz OZW (34 kobiety, 70 m??czyzn, ?r. wieku 61 lat hospitalizowanych w II Katedrze Kardiologii w?odzi z powodu bólu w klatce piersiowej, utrzymuj?cego si? nie d?u?ej ni? 24 godz. przed przyj?ciem do szpitala. U ka?dego pacjenta oznaczano przy przyj?ciu i po 6 godz. jako?ciowo h-FABP. Nast?pnie by? on poddany analizie ilo?ciowej przy u?yciu czytnika Cardio Detect quant. Na podstawie kryteriów EKG i marker??w biochemicznych grupa 104 pacjentów liczy?a: 73 pacjentów z STEMI, 13 z NSTEMI, 18 z UA. Zgromadzono dane (wizyty kontrolne po 30 i 180 dniach, dotycz?ce cz?sto?ci wyst?powania powa?nych incydentów sercowo-naczyniowych (MACE. Wyniki: Porównano dok?adno?? diagnostyczn? wszystkich analizowanych markerów martwicy miokardium. W pierwszym pomiarze h-FABP charakte­ryzowa? si? 96,5% czu?o?ci?, 72,2% swoisto?ci?. Czu?o?? pozosta?ych markerów w pierwszym pomiarze by?a ni?sza i wynosi?a 90,7% dla CK-MBmass, 61,6% dla cTnT. Swoisto?? 61,1% dla CK-MBmass, 100% dla cTnT. Na podstawie zebranych danych okre?lono cz?sto?? wyst?powania uprzednio zdefi­niowanych zdarze? niepo??danych (zgon, MI, powtórna rewaskularyzacja i hospitalizacja w obserwacji 180-dniowej wzale?no?ci od wyników ilo?cio­wych h-FABP przy przyj?ciu, jak równie? po 6 godz. Pacjenci z dodatnim wynikiem h-FABP przy przyj?ciu mieli 6-krotnie wy?sze ryzyko wyst?pienia zdarze? niepo??danych (bez uwzgl?dniania hospitalizacji, ni? pacjenci z ujemnym wynikiem h-FABP przy przyj?ciu (95% CI 1,0386-6,9348. Analogicznie chorzyz dodatnim wynikiem h-FABP po 6godz. od przyj?cia mieli ponad 3-krotnie wy?sze ryzyko wyst?pienia MACE (z uwzgl?dnieniem hospitalizacji, ni? pacjenci z ujemnym wynikiem h-FABP po 6 godz. od przyj?cia (95% CI 1,1018-4,6816. Wnioski: Ilo?ciowy pomiar h-FABP charakteryzowa? si? wysok? czu?o?ci? i swoisto?ci?, wy?sz? ni? pomiar st??enia CK-MBmass i cTnT przy przyj?ciu w grupie pacjentów z OZW. Wynik dodatni h-FABP dostarcza istotnych informacji o charakterze prognostycznym dotycz?cych wyst?pienia z?o?onego punktu ko?cowego (zgon, MI, CABG, powtórna rewaskularyzacja, hospitalizacja u pacjentów po OZW w czasie 180 dni obserwacji.

  9. S?n xu?t ethanol t? sinh kh?i t?o: tri?n v?ng và khó kh?n

    OpenAIRE

    Nguyen, Thi Hong Minh; Vu, Van Hanh

    2012-01-01

    S? gia t?ng giá nhiên li?u hóa th?ch cùng v?i c?nh báo toàn c?u v? bi?n ??i khí h?u h??ng ??n vi?c nghiên c?u tìm ra nh?ng ngu?n n?ng l??ng có th? tái t?o. N?ng l??ng sinh h?c là m?t trong nh?ng ngu?n quan tr?ng ???c các nhà khoa h?c và doanh nghi?p quan tâm. M?c dù ethanol sinh h?c ?ã ???c bi?t ??n nh? là m?t trong nh?ng d?ng n?ng l??ng tái t?o quan tr?ng nh?t ?? gi?m thi...

  10. G?ówne bia?ko zasadowe eozynofilów (eosinophil major basic protein - MBP, IL-5, elastaza neutrofilowa i IL-8 w skórze zmienionej p?cherzowo a surowicze przeciwcia?a IgG przeciwko NC16a w ludzkim pemfigoidzie p?cherzowym

    Directory of Open Access Journals (Sweden)

    Gra?yna Wolnik-Trzeciak

    2005-03-01

    Full Text Available Wst?p: Uwa?a si?, ?e fragment NC16a kolagenu typu XVII obejmuje najbardziej istotne autoepitopy w patogenezie pemfigoidu p?cherzowego (BP. Wi?kszo?? bada? na modelach zwierz?cych i cz??? na populacji ludzkiej sugeruje, ?e neutrofile, a nie eozynofile, s? kluczowymi komórkami w BP. Cel pracy: Porównanie znaczenia IL-5, IL-8, g?ównego bia?ka zasadowego eozynofilów (MBP i elastazy neutrofilowej (NE w ludzkim BP na poziomie tkanki w odniesieniu do poziomu surowiczych przeciwcia? IgG przeciwko NC16a. Materia? i metody: Badaniami obj?to 51 przypadków BP i 77 chorych kontrolnych z innymi autoimmunizacyjnymi i nieautoimmunizacyjnymi dermato-zami p?cherzowymi. MBP w skórze obejmuj?cej ?wie?y p?cherz wykrywano technik? immunohistochemiczn? streptawidyna/peroksydaza. Poziomy IL-5, IL-8, NE w p?ynie p?cherzowym oraz IL-5 i przeciwcia?a IgG anty-NC16a w surowicy badano technikami ELISA. Wyniki: MBP wykryto w p?cherzowo zmienionej skórze u 54% chorych na BP i tylko u 30% chorych kontrolnych. W grupie chorych z BP st??enie IL-5 w p?ynie p?cherzowym by?o znamiennie wi?ksze od st??enia w surowicy, a tak?e od poziomu w p?ynach kontrolnych. Poziomy IL-8 i NE w p?ynach BP nie ró?ni?y si? znamiennie od poziomów w p?ynach kontrolnych. Nie stwierdzono znamiennej zale?no?ci mi?dzy obecno?ci? MBP w wykwitach BP a poziomami IL-5 w p?ynach BP i poziomami surowiczych przeciwcia? IgG anty-NC16a, ani znamiennej zale?no?ci mi?dzy poziomem NE w p?ynach BP a poziomami IL-8 w p?ynach BP i poziomami surowiczych przeciwcia? IgG anty-NC16a, ani te? znamiennej zale?no?ci mi?dzy poziomami surowiczych przeciwcia? IgG anty-NC16a a poziomami IL-5 i IL-8 w p?ynach BP. Wnioski: W tkance u chorych na BP dzia?ania IL-5 i MBP mog? mieæ istotniejsze znaczenie od dzia?a? IL-8 i NE. Dzia?anie IL-5 wydaje si? niepowi?zane z poziomem surowiczych przeciwcia? IgG anty-NC16a i obecno?ci? MBP w wykwitach.

  11. BIA Indian Lands Dataset (Indian Lands of the United States)

    Federal Geographic Data Committee — The American Indian Reservations / Federally Recognized Tribal Entities dataset depicts feature location, selected demographics and other associated data for the...

  12. Paola Bono - Bia Sarrasini (eds., Epiche. Altre imprese, altre narrazioni

    Directory of Open Access Journals (Sweden)

    Massimo Fusillo

    2014-11-01

    Full Text Available Negli spazi affascinanti dell’Hangar Bicocca di Milano, accanto alle sublimi torri di Anselm Kiefer, è in corso in questi mesi un’ampia mostra, Light Time Tales, della famosa videoartista e performer americana Joan Jonas, da sempre affascinata dalla rilettura di saghe e testi epici, e tesa verso una ridefinizione continua della soggettività femminile. Nell’unica immensa sala buia, costellata da numerosi video e da alcune installazioni, il fruitore può costruirsi un proprio percorso più o meno labirintico, recependo in simultaneità frammenti di varie opere. Una prova di cosa possa significare oggi riproporre l’antichissimo genere dell’epica, nella nostra epoca intermediale, dominata dal multitasking.

  13. 25 CFR 1000.95 - How is BIA's residual determined?

    Science.gov (United States)

    2010-04-01

    ...DEPARTMENT OF THE INTERIOR ANNUAL FUNDING AGREEMENTS UNDER THE TRIBAL SELF-GOVERNMENT ACT AMENDMENTS TO THE INDIAN...AND EDUCATION ACT Annual Funding Agreements for Bureau of Indian...compactible, and the estimated funding level for each...

  14. Análise dos resultados do uso precoce e tardio da assistência circulatória com balão intra-aórtico (BIA) em pacientes submetidos a correção de cardiopatias com auxílio de circulação extracorpórea / Analysis of the early and late use of the intra-aortic balloon pump as a method of mechanical support for the management of patients with low output syndrome, following cardiac surgery with cardiopulmonary bypass

    Scientific Electronic Library Online (English)

    Hugo de Moraes Sarmento, Macruz; Oscar Howard, Frazier; Denton A, Cooley.

    1995-12-01

    Full Text Available Este estudo tem como objetivo, a análise retrospectiva do uso precoce (intra-operatório) e tardio (pós-operatório) do balão intra-aórtico. Foram estudados 130 pacientes do Texas Heart Institute, no período de janeiro a dezembro de 1987, sendo 103 do sexo masculino e 27 do sexo feminino; a idade médi [...] a dos pacientes foi de 61,5 ± 10,76 (14 a 84) anos, a média de peso foi de 75,5 ± 16,6 (42 a 134) kg, a média de superfície corpórea de 1,87 ± 0,24 (1,08 a 2,60)m² e um tempo médio de circulação extracorpórea de 98 (33 a 299) minutos e de pinçamento aórtico de 49 (10 a 122) minutos. O balão intra-aórtico foi usado em todos os pacientes por baixo débito cardíaco, em 4 associado a disrritmias retratarias a tratamento clínico e 2 por parada cardiorrespiratória, por períodos que variaram de 15 minutos a 256 horas. Os pacientes foram divididos em 6 grupos; Grupo I, pacientes que receberam o balão intra-aórtico no intra-operatório (precoce), Grupo II, pacientes que receberam o balão intra-aórtico no pós-operatório (tardio), Grupo III (pacientes com idade igual ou inferior a 65 anos), Grupo IV (pacientes com idade superior a 65 anos), Grupo V (pacientes com tempo de circulação extracorpórea de até 120 minutos) e Grupo VI (pacientes com tempo de circulação extracorpórea superior a 120 minutos) e 2 subdivisões nos grupos V e VI, subgrupo 1/. (pacientes com tempo de pinçamento de aorta menor ou igual a 60 minutos) e subgrupo 2/. (pacientes com tempo de pinçamento de aorta maior que 60 minutos). Dos 130 pacientes submetidos ao BIA, 81 (62.3%) sobreviveram e 49 (37,7%) pacientes faleceram; destes, 38 (36,2%) pertenciam ao Grupo I e 11 (44%) ao Grupo II. A sobrevida foi maior no Grupo III (68,6%) e menor no Grupo IV (51%) com p Abstract in english The purpose of this study was to evaluate the intra-aortic balloon pump as a method of mechanical support for the management of patients with low output syndrome, following cardiac surgery with cardiopulmonary bypass. The results with early (intra-operative) and late (post-operative) support were co [...] mpared, as well as the relationship among cardiopulmonary bypass time, aortic clamp time and mortality. Pre-operative left ventricle ejection fraction, as a prognosis index, and complications rates were also analysed. One hundred and thirty patients from Texas Heart Institute, during the period of January to December 1987, were studied retrospectively; there were 103 men and 27 women, with a mean age of 61.5 ± 10.7 (14 to 84) years. The mean weight body and body surface area were 75.5 ± 16.6 (42 to 134) kilograms and 1.87 ± 0.24 (1.08 to 2.60) square meters respectively. The mean time of cardiopulmonary bypass was 98 (33 to 299) minutes and the mean time of aortic clamp was 49 (10 to 122) minutes. All the patients had low cardiac output, associated with refractary arrythmias in 4 and after cardiac arrest in the intensive care unit in 2 patients. The intra-aortic balloon pump was left for variable periods of time from 15 minutes to 256 hours. The all cohort was divided in six groups, according to the early (intra-operative) insertion of the balloon pump (Group I), the late (post-operative) insertion (Group II), patient's age equal or inferior to 65 years Group III and Group IV age superior to 65 years, Group V and VI according cardiopulmonary bypass time up to 120 or superior to 120 minutes, and both were divided according to aortic clamp time (subgroup 1, up to 60 minutes and subgroup 2, superior to 60 minutes). The outcome was successful in 81 (62.3%) and 49 (37.7%) died (36.2% from Group I and 44% from Group II). The survival rate was greater in Group III (68.6%) than in Group IV (51 %) with p

  15. Análise dos resultados do uso precoce e tardio da assistência circulatória com balão intra-aórtico (BIA em pacientes submetidos a correção de cardiopatias com auxílio de circulação extracorpórea Analysis of the early and late use of the intra-aortic balloon pump as a method of mechanical support for the management of patients with low output syndrome, following cardiac surgery with cardiopulmonary bypass

    Directory of Open Access Journals (Sweden)

    Hugo de Moraes Sarmento Macruz

    1995-12-01

    Full Text Available Este estudo tem como objetivo, a análise retrospectiva do uso precoce (intra-operatório e tardio (pós-operatório do balão intra-aórtico. Foram estudados 130 pacientes do Texas Heart Institute, no período de janeiro a dezembro de 1987, sendo 103 do sexo masculino e 27 do sexo feminino; a idade média dos pacientes foi de 61,5 ± 10,76 (14 a 84 anos, a média de peso foi de 75,5 ± 16,6 (42 a 134 kg, a média de superfície corpórea de 1,87 ± 0,24 (1,08 a 2,60m² e um tempo médio de circulação extracorpórea de 98 (33 a 299 minutos e de pinçamento aórtico de 49 (10 a 122 minutos. O balão intra-aórtico foi usado em todos os pacientes por baixo débito cardíaco, em 4 associado a disrritmias retratarias a tratamento clínico e 2 por parada cardiorrespiratória, por períodos que variaram de 15 minutos a 256 horas. Os pacientes foram divididos em 6 grupos; Grupo I, pacientes que receberam o balão intra-aórtico no intra-operatório (precoce, Grupo II, pacientes que receberam o balão intra-aórtico no pós-operatório (tardio, Grupo III (pacientes com idade igual ou inferior a 65 anos, Grupo IV (pacientes com idade superior a 65 anos, Grupo V (pacientes com tempo de circulação extracorpórea de até 120 minutos e Grupo VI (pacientes com tempo de circulação extracorpórea superior a 120 minutos e 2 subdivisões nos grupos V e VI, subgrupo 1/. (pacientes com tempo de pinçamento de aorta menor ou igual a 60 minutos e subgrupo 2/. (pacientes com tempo de pinçamento de aorta maior que 60 minutos. Dos 130 pacientes submetidos ao BIA, 81 (62.3% sobreviveram e 49 (37,7% pacientes faleceram; destes, 38 (36,2% pertenciam ao Grupo I e 11 (44% ao Grupo II. A sobrevida foi maior no Grupo III (68,6% e menor no Grupo IV (51% com pThe purpose of this study was to evaluate the intra-aortic balloon pump as a method of mechanical support for the management of patients with low output syndrome, following cardiac surgery with cardiopulmonary bypass. The results with early (intra-operative and late (post-operative support were compared, as well as the relationship among cardiopulmonary bypass time, aortic clamp time and mortality. Pre-operative left ventricle ejection fraction, as a prognosis index, and complications rates were also analysed. One hundred and thirty patients from Texas Heart Institute, during the period of January to December 1987, were studied retrospectively; there were 103 men and 27 women, with a mean age of 61.5 ± 10.7 (14 to 84 years. The mean weight body and body surface area were 75.5 ± 16.6 (42 to 134 kilograms and 1.87 ± 0.24 (1.08 to 2.60 square meters respectively. The mean time of cardiopulmonary bypass was 98 (33 to 299 minutes and the mean time of aortic clamp was 49 (10 to 122 minutes. All the patients had low cardiac output, associated with refractary arrythmias in 4 and after cardiac arrest in the intensive care unit in 2 patients. The intra-aortic balloon pump was left for variable periods of time from 15 minutes to 256 hours. The all cohort was divided in six groups, according to the early (intra-operative insertion of the balloon pump (Group I, the late (post-operative insertion (Group II, patient's age equal or inferior to 65 years Group III and Group IV age superior to 65 years, Group V and VI according cardiopulmonary bypass time up to 120 or superior to 120 minutes, and both were divided according to aortic clamp time (subgroup 1, up to 60 minutes and subgroup 2, superior to 60 minutes. The outcome was successful in 81 (62.3% and 49 (37.7% died (36.2% from Group I and 44% from Group II. The survival rate was greater in Group III (68.6% than in Group IV (51 % with p<0.05 showing statistical relevance of mortality in the older group. There were no significant associations between ejection fraction, aortic clamp time versus mortality but cardiopulmonary bypass had high statistical significance with p<0.01 for times over 120 minutes. Complications were found in 6 patients (4.6%. These data suggest that intra-aortic balloon pump is an effective mechanical support for

  16. 25 CFR 170.2 - What is the IRR Program and BIA Road Maintenance Program policy?

    Science.gov (United States)

    2010-04-01

    ...individual Indians. (e) The Secretary should interpret Federal laws and regulations to facilitate including programs covered by...of self-determination and self-governance. (i) Any ambiguities in this part must be construed in favor of the tribes so...

  17. Indian Reservations, RBD, Published in 1985, Smaller than 1:100000 scale, BIA Western Regional Office.

    NSGIC GIS Inventory (aka Ramona) — This Indian Reservations dataset, published at Smaller than 1:100000 scale, was produced all or in part from Other information as of 1985. It is described as 'RBD'....

  18. Coupling IR Thermography and BIA to analyse body reaction after one acupuncture session

    International Nuclear Information System (INIS)

    Coupling both thermography and bio-Impedance, some biophysical acupuncture mechanisms are statically studied on a small population of 18 subjects. Results show that a possible way of understanding acupuncture, in an electrical way, should be to consider ionic flux redistribution between vascular and extra cell compartments. This is a two steps mechanism. The first one is starting with needles insertion and the second one is lasting with more intensity after removing them from skin.

  19. 25 CFR 103.23 - How does BIA make interest subsidy payments?

    Science.gov (United States)

    2010-04-01

    25 Indians 1 2010-04-01 2010-04-01...payments? 103.23 Section 103.23 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR...quarterly on the borrower's loan payment history, together with a calculation of...

  20. 25 CFR 15.203 - What information must tribes provide BIA to complete the probate file?

    Science.gov (United States)

    2010-04-01

    ... 15.203 Section 15.203 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR PROBATE PROBATE OF INDIAN ESTATES, EXCEPT FOR MEMBERS...include enrollment and family history data or property title...

  1. 25 CFR 170.401 - What is BIA's role in transportation planning?

    Science.gov (United States)

    2010-04-01

    ...transportation planning and other transportation-related...Performing preliminary project planning; (k) Conducting...and maintaining management systems; (o...transportation planning for operational...rights-of-way documents for project...

  2. 25 CFR 1000.82 - What types of provisions must be included in a BIA AFA?

    Science.gov (United States)

    2010-04-01

    ...DEPARTMENT OF THE INTERIOR ANNUAL FUNDING AGREEMENTS UNDER THE TRIBAL SELF-GOVERNMENT ACT AMENDMENTS TO THE INDIAN...AND EDUCATION ACT Annual Funding Agreements for Bureau of Indian...Contents and Scope of Annual Funding Agreements §...

  3. Zmiany skórne w przebiegu ostrej bia?aczki szpikowej – opis przypadku

    Directory of Open Access Journals (Sweden)

    Waldemar Placek

    2011-08-01

    Full Text Available Introduction. Acute myeloid leukaemia is a malignant neoplastic diseaseof white blood cells. About 80% of acute leukaemias in adult arediagnosed as myeloid leukaemias. The presence of transformed cellclones in bone marrow and blood, which originate from very earlystages of myelopoiesis, is characteristic. Beside systemic symptoms(anaemia, thrombocytopenia there are infiltrations in other organs,including skin. Skin lesions are most frequently non-specific (pruritus,skin spots, erythema multiforme, bullous pemphigoid but can be alsospecific (skin tumours. Cases of diffuse xanthomatoses and myeloidsarcoma have also been found in patients with acute myeloidleukaemia. Skin lesions are present more often in lymphocytic thanmyeloid leukaemias. They may precede the disease or its relapse, occurconcomitantly or after systemic symptoms, and sometimes may be ofprognostic value.Objective. To present the case of a patient in whom skin lesions werethe cause of detailed examinations, which revealed acute myeloidleukaemia.Case report. We present a case of a 61-year old patient with purplebrownnodular lesions 1-3 cm in diameter on the face, scalp skin, trunk,limbs and the oral cavity’s mucous membranes with coexistent intensepruritus and generalized lymphadenopathy. The first skin lesionsoccurred three months earlier. During hospitalization in the Departmentof Dermatology the renewal of blasts in the circulatory blood wasobserved and skin biopsy revealed a large amount of mononuclearcells. The patient was directed to the haematological ward, where thediagnosis of acute myeloid leukaemia was established.Conclusions. Our case indicates that the presence of skin lesions andthorough diagnostic procedures may contribute to the diagnosis ofmalignant neoplastic diseases of white blood cells.

  4. Variability in global and direct irradiation series generation: scope and limitations

    OpenAIRE

    Ferna?ndez-peruchena, Carlos M.; Rami?rez, Lourdes; Blanco, Manuel; Bernardos, Ana

    2010-01-01

    The synthetic generation of hourly global horizontal irradiation (GHI) series allows the estimation of solar radiation potential by allowing the filling of gaps in records of daily or hourly values. In addition, synthetic generation of GHI can provide an increase of the time resolution of measured (or estimated) GHI series. Unfortunately, since GHI synthetic generation schemes are based on the use of random numbers, they provide different global irradiation values in each generation. Conseque...

  5. 25 CFR 162.243 - How will BIA decide whether to approve an assignment or sublease under an agricultural lease?

    Science.gov (United States)

    2010-04-01

    ...an assignment or sublease under an agricultural lease? 162.243 Section 162.243 Indians ...DEPARTMENT OF THE INTERIOR LAND AND WATER LEASES AND PERMITS Agricultural Leases Lease Administration § 162.243...

  6. 25 CFR 162.244 - How will BIA decide whether to approve a leasehold mortgage under an agricultural lease?

    Science.gov (United States)

    2010-04-01

    ...approve a leasehold mortgage under an agricultural lease? 162.244 Section 162.244 Indians ...DEPARTMENT OF THE INTERIOR LAND AND WATER LEASES AND PERMITS Agricultural Leases Lease Administration § 162.244 How...

  7. 25 CFR 162.213 - What supporting documents must be provided prior to BIA's grant or approval of an agricultural...

    Science.gov (United States)

    2010-04-01

    ...Agricultural Leases How to Obtain A Lease § 162.213 What supporting...approval of an agricultural lease? (a) If the tenant is...provide organizational and financial documents, as needed to show that the lease will be enforceable...

  8. 25 CFR 162.620 - Will BIA's regulations concerning appeal bonds apply to cancellation decisions involving leases?

    Science.gov (United States)

    2010-04-01

    ...will not apply to appeals from lease cancellation decisions made...decide to cancel an agricultural lease, we may require that the...the Indian landowners against financial losses that will likely result...contested during the appeal of the lease cancellation...

  9. 25 CFR 171.500 - How does BIA determine the annual operation and maintenance assessment rate for the irrigation...

    Science.gov (United States)

    2010-04-01

    ...and maintenance assessment rate for the irrigation facility servicing my farm unit? ...DEPARTMENT OF THE INTERIOR LAND AND WATER IRRIGATION OPERATION AND MAINTENANCE Financial...and maintenance assessment rate for the irrigation facility servicing my farm...

  10. Enhancing the Efficiency of SnS Solar Cells bia Band-Offset Engineering with a Zinc Oxysulfide Buffer Layer

    OpenAIRE

    Sinsermsuksakul, Prasert; Hartman, Katy; Kim, Sang Bok; Sun, Leizhi; Park, Helen Hejin; Chakraborty, Rupak; Buonassisi, Tonio; Gordon, Roy Gerald

    2013-01-01

    SnS is a promising earth-abundant material for photovoltaic applications. Heterojuction solar cells were made by vapor deposition of p-type tin(II) sulfide, SnS, and n-type zinc oxysulfide, Zn(O,S), using a device structure of soda-lime glass/Mo/SnS/Zn(O,S)/ZnO/ITO. A record efficiency was achieved for SnS-based thin-film solar cells by varying the oxygen-to-sulfur ratio in Zn(O,S). Increasing the sulfur content in Zn(O,S) raises the conduction band offset between Zn(O,S) and SnS to an opti...

  11. 25 CFR 166.910 - What happens if I do not fulfill my obligation to the BIA?

    Science.gov (United States)

    2010-04-01

    ...support under agriculture education programs with an obligated...organization. (2) Cooperative education Tuition, books, and fees...program plus interest (5) Postgraduate studies Living allowance... (b) For agriculture education programs with an...

  12. 25 CFR 166.909 - What are my obligations to the BIA after I participate in an agriculture education program?

    Science.gov (United States)

    2010-04-01

    ...in any of the agriculture education programs with an obligated...of completing all program education requirements, request a deferment...obligated service to pursue postgraduate or post-doctoral studies...in any of the agriculture education programs with an...

  13. 25 CFR 170.808 - Can BIA Road Maintenance Program funds be used to improve IRR transportation facilities?

    Science.gov (United States)

    2010-04-01

    ...Road Maintenance Program funds be used to improve IRR transportation facilities? 170...Road Maintenance Program funds be used to improve IRR transportation facilities? No...Maintenance Program funds cannot be used to improve roads or other IRR transportation...

  14. 25 CFR 103.32 - What sort of loan documentation does BIA expect the lender to maintain?

    Science.gov (United States)

    2010-04-01

    25 Indians 1 2010-04-01 2010-04-01...maintain? 103.32 Section 103.32 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR...insurance; (e) A complete and current history of all loan transactions,...

  15. 25 CFR 171.510 - How does BIA calculate my annual operation and maintenance assessment if supplemental water is...

    Science.gov (United States)

    2010-04-01

    ...and maintenance assessment if supplemental water is available on the irrigation facility...DEPARTMENT OF THE INTERIOR LAND AND WATER IRRIGATION OPERATION AND MAINTENANCE...and maintenance assessment if supplemental water is available on the irrigation...

  16. 25 CFR 1000.194 - When must BIA raise the issue of limitation or reduction of services, contracts, or funding?

    Science.gov (United States)

    2010-04-01

    ...of services, contracts, or funding? 1000.194 Section 1000...DEPARTMENT OF THE INTERIOR ANNUAL FUNDING AGREEMENTS UNDER THE TRIBAL SELF-GOVERNMENT ACT AMENDMENTS TO THE INDIAN...services, contracts, or funding? (a) From the...

  17. 25 CFR 1000.122 - What non-BIA programs are eligible for inclusion in an annual funding agreement?

    Science.gov (United States)

    2010-04-01

    ...for inclusion in an annual funding agreement? 1000.122...DEPARTMENT OF THE INTERIOR ANNUAL FUNDING AGREEMENTS UNDER THE TRIBAL SELF-GOVERNMENT ACT AMENDMENTS TO THE INDIAN...Self-Governance Compacts and Funding Agreements Eligibility...

  18. 25 CFR 170.807 - What must BIA include when it develops an IRR Transportation Facilities Maintenance Management...

    Science.gov (United States)

    2010-04-01

    ...actions; (4) Projecting maintenance costs; (5) Tracking and reporting of actual maintenance costs and activities accomplished; (6) Forecasting short- and long-term...include: (1) Cost of maintenance activity per mile...

  19. ???????? ??????????????? ????????????? ????????????? ? ??????? ??????? ??????? ???????-????-????????????? ? ????????? ? ???????????? ????????????????

    Directory of Open Access Journals (Sweden)

    Nassiba Baimatova

    2014-06-01

    Full Text Available ???????? ????????? ??????????????? ????????????? ????????????? (??? ?????? ????? ???????? ???? ? ????????????? ??????????? ? ????????? ?????????? ???????? ? ????????? ??????????? ?????? ????????????? ? ?????????? ?????. ????? ?????? ?????? ???? ??????????? ???????? ????????? ??? ? ??????? ??????? ??????? ???????-????-????????????? (??-?? ? ????????? ? ???????????? ????????????????. ?????????? ???????? ??????????? ?????????? ??????????????, ??????? ??????????????? ???????? – ???????????????????? (????, ??????? ??????????, ????????? ?? ???????? ???????? ? ????????? ?????? ??????????? ??? ? ??????? ? ???????????? ???????????? ??????????.??? ?????????? ???????????? ???????????????? ? ????? ????? ??? ??????????? ????????? ????-??????????????????? ?????????????? ? ?????? ??????????? ????????? ????? (SIM, ?????????? 6 ??????????????? ????????????? ????? ???????????? ????? ????????. ?????????? ?????? ???? ??? ???????????? ???????? ???? ???????? 100 ???, ??? ??????????? ??? ???????? ??????? ? ????????. ?????????? ??????? ???????? ? ?????????? ???????? ???, ????????? ???????? ?????????? ??????? ?? 6 (??? ????? ?????? ??? ?? 24 ?????. ??????????? ???? ??????? ????? ?????????? 24 ????, ??????? ???????????? ?????????? ?????? ???? ??? ? ????????? ???????? ?????????????? ?????? ? ????????? ?? ??? ????????? ?????????? ?????????? ???????????? ???????.????????? ????????????? ???????? ? ??????? ?????? ?????? ???????? ??????????? ???? ??? ? ????????? ????????, ????? ?????[ghi]???????? ? ??????[1,2,3-cd]??????, ??????? ?? ???? ?????????? ? 50% ???????? ???????. ???????????? ? ??????????? ?????????? ????????? ??? ? ?????????????? ???????? ? ???? ????????? ??????????? ?? 2,9 ?? 40 ???.????????????? ???????? ??????????? ??????????? ??????????? ?? ????????? ? ?????????? ???????? ?? 1 ??????, ? ????? ?? ?????????????. ???????? ????? ???? ????????????? ??? ????????? ? ??????????? ??? ? ??????????? ??????? ?????????? ???????, ? ????? ??? ?????????? ??????? ????????????.??? ?????????? ???????????? ???????????????? ? ????? ????? ??? ??????????? ????????? ????-??????????????????? ?????????????? ? ?????? ??????????? ????????? ????? (SIM, ?????????? 6 ??????????????? ????????????? ????? ????????????

  20. 25 CFR 162.250 - How will BIA determine whether the activities of a tenant under an agricultural lease are in...

    Science.gov (United States)

    2010-04-01

    ...activities of a tenant under an agricultural lease are in compliance with the terms of the lease? 162.250 Section 162.250 Indians...DEPARTMENT OF THE INTERIOR LAND AND WATER LEASES AND PERMITS Agricultural Leases Lease...

  1. 25 CFR 166.419 - What will the BIA do if grazing rental payments are not made in the time and manner required by...

    Science.gov (United States)

    2010-04-01

    ...violation within five business days of the date on...violation within five business days of the date on...or invoke any other remedies available under the permit or applicable law, including collection...d) If a personal or business check is...

  2. 25 CFR 162.248 - What will BIA do if rent payments are not made in the time and manner required by an agricultural...

    Science.gov (United States)

    2010-04-01

    ...violation within five business days of the date on...violation within five business days of the date on...or invoke any other remedies available under the lease or applicable law, including collection...d) If a personal or business check is...

  3. 25 CFR 162.615 - What will BIA do if rent payments are not made in the time and manner required by a lease?

    Science.gov (United States)

    2010-04-01

    ...violation within five business days of the date on...violation within five business days of the date on...or invoke any other remedies available under the lease or applicable law, including collection...d) If a personal or business check is...

  4. 75 FR 44198 - Implementation of Section 203 of the Satellite Television Extension and Localism Act of 2010...

    Science.gov (United States)

    2010-07-28

    ...estimated the number of licensed commercial television stations to be 1,392...of the BIA/Kelsey, MAPro Television Database (``BIA'') as...015 of an estimated 1,380 commercial television stations \\110\\ (or...

  5. A randomized controlled trial of long term effect of BCM guided fluid management in MHD patients (BOCOMO study): rationales and study design

    OpenAIRE

    Liu Li; Long Gang; Ren Jianwei; Li Jijun; Xu Jinsheng; Lei Jinghong; Li Mao; Qiu Moyan; Yuan Ping; Sun Weiming; Lin Shan; Liu Wenjun; Sun Yi; Ma Yingchun; Mao Yonghui

    2012-01-01

    Abstract Background Bioimpedance analysis (BIA) has been reported as helpful in identifying hypervolemia. Observation data showed that hypervolemic maintenance hemodialysis (MHD) patients identified using BIA methods have higher mortality risk. However, it is not known if BIA-guided fluid management can improve MHD patients’ survival. The objectives of the BOCOMO study are to evaluate the outcome of BIA guided fluid management compared with standard care. Methods This is a multicenter, pros...

  6. Which method to use for a fast assessment of body fat percentage?

    Science.gov (United States)

    Kotnik, Katja Zdešar; Robi?, Tatjana; Golja, Petra

    2015-07-01

    Body position affects body water distribution and in turn the accuracy of bioelectrical impedance analysis (BIA), which may consequently distort conclusions about an individual's body composition.We compared body fat percentage (BFP) obtained with leg-to-leg-BIA (LL) and hand-to-leg-BIA (HL) with the reference values.The BFPs of 97 individuals were determined with an LL- (Tanita TBF 215GS, Japan) and HL- (Akern, STA/BIA, Italy) BIA-analyser and with reference skinfold thickness (SF) measurements. Each subject was measured upright with the LL-analyser, and upright and supine with the HL-analyser, both before and after 20?min of supine rest. The one-way ANOVA for repeated measures (HL-BIA), Student's t-test (LL-BIA), intraclass correlation coefficients, and Bland-Altman's plots were used for statistical analysis.BFPs determined with HL/LL BIA in upright/supine positions differ significantly. Compared to the SF method, HL-BIA mostly overestimates, while LL-BIA mostly underestimates BFP. Agreement between anthropometrically determined BFP and HL/LL-BIA determined BFP is better with HL for both sexes, and generally better in females than males.HL-BIA-determined estimates of BFP are more similar to reference values than LL-BIA. However, for both BIA methods, BIA-determined estimates of BFP are significantly affected by body position. Consequently, different BIA methods will classify approximately one fifth of subjects into the erroneous body-fat-content category, which calls for urgent standardization. PMID:26020697

  7. Bureau of Indian Affairs Schools: New Facilities Management Information System Promising, but Improved Data Accuracy Needed.

    Science.gov (United States)

    General Accounting Office, Washington, DC.

    A General Accounting Office (GAO) study evaluated the Bureau of Indian Affairs' (BIA) new facilities management information system (FMIS). Specifically, the study examined whether the new FMIS addresses the old system's weaknesses and meets BIA's management needs, whether BIA has finished validating the accuracy of data transferred from the old…

  8. Single- and multi-frequency bioelectrical impedance analyses to analyse body composition in maintenance haemodialysis patients: comparison with dual-energy x-ray absorptiometry

    International Nuclear Information System (INIS)

    The aim of this study was to evaluate the adequacy of single-frequency (sf-BIA) and multi-frequency bioelectrical impedance analyses (mf-BIA), in comparison with dual-energy x-ray absorptiometry (DXA), to evaluate body composition in maintenance haemodialysis (MHD) patients. Body composition of 27 adult MHD patients (9 f, 18 m), BMI 17.5–34.4 kg m?2, was examined with DXA and BIA, with two different sf-BIA and 1 mf-BIA analysers. Biochemical markers of nutritional status and adequacy of dialytic treatment were also determined. Fat mass (FM) estimated by the different BIA analysers was found to be slightly but significantly higher than FM measured by DXA. In contrast, fat-free mass (FFM) obtained with BIA was found to be slightly but significantly lower than FFM DXA. No significant differences were found between LBM-DXA (that is FFM-DXA minus bone mass) and the different FFM BIA. The lowest mean prediction error versus DXA values was found with sf1BIA. In any case, a close correlation was found between all BIA values and DXA values, particularly for FFM. Furthermore, FFM and LBM results were significantly correlated with serum creatinine, which in MHD patients is an indicator of muscle mass. These results indicate that BIA can be used to evaluate body composition in MHD patients

  9. Advancing integrative “one-health” approaches to global health through multidisciplinary, faculty-led global health field courses

    Directory of Open Access Journals (Sweden)

    Prof. C Olsen, DVM

    2015-03-01

    Funding: The GHI is supported through a combination of university, grants, and philanthropic funding; these field courses do not have specific, separate funding. Students self-fund participation in the courses.

  10. Voltammetric characterisation of the aerobic energy dissipating nitrate reductase of Paracoccus pantotrophus: exploring the activity of a redox balancing enzyme as a function of electrochemical potential

    OpenAIRE

    Gates, Andrew J.; Richardson, David J.; Butt, Julea N.

    2007-01-01

    Abstract Paracoccus pantotrophus expresses two nitrate reductases associated with respiratory electron transport, NapABC and NarGHI. Both enzymes derive electrons from ubiquinol to reduce nitrate to nitrite. However, while NarGHI harnesses the energy of the quinol/nitrate couple to generate a transmembrane proton gradient, NapABC dissipates the energy associated with these reducing equivalents. Here we explore the nitrate reductase activity of purified NapAB as a function of electr...

  11. A comparison of fat mass and skeletal muscle mass estimation in male ultra-endurance athletes using bioelectrical impedance analysis and different anthropometric methods / Comparación de la masa grasa y muscular estimada en atletas varones de ultra-resistencia utilizando la bioimpedancia eléctrica y diferentes métodos antropométricos

    Scientific Electronic Library Online (English)

    B., Knechtle; A., Wirth; P., Knechtle; T., Rosemann; C. A., Rüst; R., Bescós.

    2011-12-01

    Full Text Available Se reclutaron a 257 hombres caucasianos que eran atletas de alto rendimiento, antes de competir en diferentes pruebas triatlón de natación, ciclismo y carrera. Se estimaron la masa grasa y la masa de músculo esquelético utilizando un análisis de impedancia bioeléctrica (BIA) y métodos antropométrico [...] s con el fin de investigar si el uso de BIA o de la antropometría sería útil en tales condiciones de campo. La grasa corporal total estimada por BIA fue significativamente mayor en comparación con la antropometría (P Abstract in english Two hundred and fifty seven male Caucasian ultraendurance athletes were recruited, pre-race, before different swimming, cycling, running and triathlon races. Fat mass and skeletal muscle mass were estimated using bioelectrical impedance analysis (BIA) and anthropometric methods in order to investiga [...] te whether the use of BIA or anthropometry would be useful under field conditions. Total body fat estimated using BIA was significantly high (P

  12. Obesity and Its Diagnostic Methods in Turkish Children

    Directory of Open Access Journals (Sweden)

    Dilek Yilmaz

    2012-08-01

    Full Text Available Objective: The application of body mass index (BMI for obesity classification in all population studies has been questioned by the scientific community. It has been found that the bioelectrical impedance analysis (BIA is an accurate method for screening obesity. This study was conducted to evaluate the accuracies of BMI, skinfold thickness (SFT, leptin and BIA measurements in obesity classification and to find correlations between BIA and the other indicators for obesity. Materials and Methods: This case-control study included 178 children of whom 90 were in the obese group and 88 in the control group. The study measured BMI, SFT, leptin level and BIA-mediated body fat percentage (BIA BFP in each child. Results: The BMIs, leptin levels, SFTs and BIA BFPs of children in the obese group were found to be higher than those in the control group (p<0.001. The measurement of BIA BFP strongly correlated with BMI, SFT and waist circumference, whereas BIA BFP measurement showed weak-moderate correlation with leptin level. Conclusion: Bioelectrical impedance analysis was found to be an accurate measure of BFP in obesity. In addition, BIA may prevent the incorrect diagnosis of obesity as determined by BMI alone, especially in boys during the pubertal period.

  13. Comparison of fluid volume estimates in chronic hemodialysis patients by bioimpedance, direct isotopic, and dilution methods.

    Science.gov (United States)

    Raimann, Jochen G; Zhu, Fansan; Wang, Jack; Thijssen, Stephan; Kuhlmann, Martin K; Kotanko, Peter; Levin, Nathan W; Kaysen, George A

    2014-04-01

    Bioimpedance analysis (BIA) is accepted for the assessment of total-body water (TBW), intracellular fluid (ICF) and extracellular fluid (ECF). We aimed to compare precision and accuracy of single and multi-frequency-BIA to direct estimation methods (DEMs) of TBW, ECF, and ICF in hemodialysis patients. Linear regression analysis of volume estimates in 49 patients by single- and multi-frequency-BIA correlated significantly with DEMs. Bland-Altman analysis (BAA) found systemic bias for ECF single-frequency-BIA vs. ECF-DEMs. No other systematic biases were found. Proportional errors were found by BAA of ICF and ECF assessments with single- and multi-frequency bioimpedance spectroscopy compared to the DEMs. Comparisons of indirect methods (IEMs) to DEMs showed no significant differences and proportional errors. Root mean-squared-error analysis suggested slightly better accuracy and precision of ICF single-frequency-BIA vs. DEMs over ICF multi-frequency-BIA and IEMs to DEMs, and slightly better performance for ECF multi-frequency-BIA over both respective other methods. Compared to DEMs, there is slightly better accuracy for ECF multi- over single-frequency-BIA and ICF single- over multi-frequency-BIA. However the margin of differences between direct and indirect methods suggests that none of the analyzed methods served as a true "gold standard", because indirect methods are almost equally precise compared to DEMs. PMID:24067432

  14. Multi-frequency bioimpedance in human muscle assessment

    DEFF Research Database (Denmark)

    Bartels, Else Marie; SØrensen, Emma Rudbæk

    2015-01-01

    Bioimpedance analysis (BIA) is a well-known and tested method for body mass and muscular health assessment. Multi-frequency BIA (mfBIA) equipment now makes it possible to assess a particular muscle as a whole, as well as looking at a muscle at the fiber level. The aim of this study was to test the hypothesis that mfBIA can be used to assess the anatomical, physiological, and metabolic state of skeletal muscles. mfBIA measurements focusing on impedance, resistance, reactance, phase angle, center frequency, membrane capacitance, and both extracellular and intracellular resistance were carried out. Eight healthy human control subjects and three selected cases were examined to demonstrate the extent to which this method may be used clinically, and in relation to training in sport. The electrode setup is shown to affect the mfBIA parameters recorded. Our recommendation is the use of noble metal electrodes in connection with a conductance paste to accommodate the typical BIA frequencies, and to facilitate accurate impedance and resistance measurements. The use of mfBIA parameters, often in conjunction with each other, can be used to reveal indications of contralateral muscle loss, extracellular fluid differences, contracted state, and cell transport/metabolic activity, which relate to muscle performance. Our findings indicate that mfBIA provides a noninvasive, easily measurable and very precise momentary assessment of skeletal muscles.

  15. Exogenous recombinant human growth hormone effects during suboptimal energy and zinc intake

    Directory of Open Access Journals (Sweden)

    Duro Debora

    2005-04-01

    Full Text Available Abstract Background Energy and Zinc (Zn deficiencies have been associated with nutritional related growth retardation as well as growth hormone (GH resistance. In this study, the relationship between suboptimal energy and/or Zn intake and growth in rats and their response to immunoreactive exogenous recombinant human GH (GHi, was determined. Results Rats treated with GHi and fed ad-libitum energy and Zn (100/100 had increased IGFBP-3 (p Conclusion These results suggest that GHi enhances weight gain in rats with suboptimal energy and Zn intake but does not modify energy expenditure or physical activity index. Suboptimal Zn intake did not exacerbate the reduced growth or decrease in energy expenditure observed with energy restriction.

  16. Sub-Hour Solar Data for Power System Modeling From Static Spatial Variability Analysis: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Hummon, M.; Ibanez, E.; Brinkman, G.; Lew, D.

    2012-12-01

    High penetration renewable integration studies need high quality solar power data with spatial-temporal correlations that are representative of a real system. This paper will summarize the research relating sequential point-source sub-hour global horizontal irradiance (GHI) values to static, spatially distributed GHI values. This research led to the development of an algorithm for generating coherent sub-hour datasets that span distances ranging from 10 km to 4,000 km. The algorithm, in brief, generates synthetic GHI values at an interval of one-minute, for a specific location, using SUNY/Clean Power Research, satellite-derived, hourly irradiance values for the nearest grid cell to that location and grid cells within 40 km.

  17. Model for correcting global solar irradiance measured with rotating shadowband radiometer

    Science.gov (United States)

    Xing, Hongyan; Chong, Wei; Sha, Yizhuo; Lv, Wenhua

    2012-04-01

    Global horizontal irradiance (GHI) measured with rotating shadowband radiometer (RSR) is not accurate enough due to thermal sensitivity and nonuniform spectral response of the photovoltaic detector equipped inside. The purpose of this work is to develop a multiple regressive model to correct the errors posed by the temperature and spectrum. The ratio of the reference global horizontal irradiance (RGHI) to the RSR measured GHI is defined as correction factor, based on which, the model is built via device temperature, air mass, and solar zenith angle. Evaluated from various statistical tests such as coefficient of correlation R2, mean bias deviation, root mean square deviation, t-statistic, skewness, and kurtosis, results show that the corrected RSR GHI can be comparable with the high-quality RGHI, which indicates the validity of the model.

  18. 76 FR 80403 - Agency Information Collection Activities; Proposed collection; Comments Request: Alien's Change...

    Science.gov (United States)

    2011-12-23

    ...Proposed collection; Comments Request: Alien's Change of Address Form: 33/BIA Board...2) Title of the Form/Collection: Alien's Change of Address Forms 33/BIA Board...administrative action or of any decisions in an alien's case. (5) An estimate of the...

  19. Crescente cottidie malicia perversorum. Notka o wp?ywie statutów Jakuba ?winki na czeskie prawodawstwo ko?cielne.

    Czech Academy of Sciences Publication Activity Database

    Krafl, Pavel

    Bielsko-Bia?a : Wy?sza Szko?a Administracji w Bielsku-Bia?ej, 2009 - (Ma?ecki, M.), s. 111-117 ISBN 978-83-60430-07-1 Institutional research plan: CEZ:AV0Z80150510 Keywords : medieval Canon Law * Czech and polish history * Synods and Synodical legislation Subject RIV: AB - History

  20. Practical issues in handling data input and uncertainty in a budget impact analysis.

    Science.gov (United States)

    Nuijten, M J C; Mittendorf, T; Persson, U

    2011-06-01

    The objective of this paper was to address the importance of dealing systematically and comprehensively with uncertainty in a budget impact analysis (BIA) in more detail. The handling of uncertainty in health economics was used as a point of reference for addressing the uncertainty in a BIA. This overview shows that standard methods of sensitivity analysis, which are used for standard data set in a health economic model (clinical probabilities, treatment patterns, resource utilisation and prices/tariffs), cannot always be used for the input data for the BIA model beyond the health economic data set for various reasons. Whereas in a health economic model, only limited data may come from a Delphi panel, a BIA model often relies on a majority of data taken from a Delphi panel. In addition, the dataset in a BIA model also includes forecasts (e.g. annual growth, uptakes curves, substitution effects, changes in prescription restrictions and guidelines, future distribution of the available treatment modalities, off-label use). As a consequence, the use of standard sensitivity analyses for BIA data set might be limited because of the lack of appropriate distributions as data sources are limited, or because of the need for forecasting. Therefore, scenario analyses might be more appropriate to capture the uncertainty in the BIA data set in the overall BIA model. PMID:20364289

  1. Multi-frequency bioimpedance in equine muscle assessment

    DEFF Research Database (Denmark)

    Harrison, Adrian Paul; ElbrØnd, Vibeke SØdring

    2015-01-01

    Multi-frequency BIA (mfBIA) equipment has been shown to be a non-invasive and reliable method to assess a muscle as a whole or at fibre level. In the equine world this may be the future method of assessment of training condition or of muscle injury. The aim of this study was to test if mfBIA reliably can be used to assess the condition of a horse's muscles in connection with health assessment, injury and both training and re-training. mfBIA measurements was carried out on 10 'hobby' horses and 5 selected cases with known anamnesis. Impedance, resistance, reactance, phase angle, centre frequency, membrane capacitance and both extracellular and intracellular resistance were measured. Platinum electrodes in connection with a conductance paste were used to accommodate the typical BIA frequencies and to facilitate accurate measurements. Use of mfBIA data to look into the effects of myofascial release treatment was also demonstrated. Our findings indicate that mfBIA provides a non-invasive, easily measurable and very precise assessment of the state of muscles in horses. This study also shows the potential of mfBIA as a diagnostic tool as well as a tool to monitor effects of treatment e.g. myofascial release therapy and metabolic diseases, respectively.

  2. Role of the phloem in the biochemistry and ecophysiology of benzylisoquinoline alkaloid metabolism

    OpenAIRE

    Lee, Eun-jeong; Hagel, Jillian M.; Facchini, Peter J.

    2013-01-01

    Benzylisoquinoline alkaloids (BIAs) are a diverse group of biologically active specialized metabolites produced mainly in four plant families. BIA metabolism is likely of monophyletic origin and involves multiple enzymes yielding structurally diverse compounds. Several BIAs possess defensive properties against pathogenic microorganisms and herbivores. Opium poppy (Papaver somniferum: Papaveraceae) has emerged as a model system to investigate the cellular localization of BIA biosynthesis. Alth...

  3. Novel nonsense mutation (p.Y113X in the human growth hormone receptor gene in a Brazilian patient with Laron syndrome Nova mutação nonsense (p.Y113X no gene do receptor do hormônio do crescimento em um paciente brasileiro com síndrome de Laron

    Directory of Open Access Journals (Sweden)

    Erik Trovão Diniz

    2008-11-01

    Full Text Available BACKGROUND: To date, about sixty different mutations within GH receptor (GHR gene have been described in patients with GH insensitivity syndrome (GHI. In this report, we described a novel nonsense mutation of GHR. METHODS: The patient was evaluated at the age of 6 yr, for short stature associated to clinical phenotype of GHI. GH, IGF-1, and GHBP levels were determined. The PCR products from exons 2-10 were sequenced. RESULTS: The patient had high GH (26 µg/L, low IGF-1 (22.5 ng/ml and undetectable GHBP levels. The sequencing of GHR exon 5 disclosed adenine duplication at nucleotide 338 of GHR coding sequence (c.338dupA in homozygous state. CONCLUSION: We described a novel mutation that causes a truncated GHR and a loss of receptor function due to the lack of amino acids comprising the transmembrane and intracellular regions of GHR protein, leading to GHI.INTRODUÇÃO: Até o momento, aproximadamente 60 diferentes mutações envolvendo o gene do receptor do GH (GHR foram descritas em pacientes com a síndrome de insensibilidade ao GH (GHI. Neste artigo, descrevemos uma nova mutação nonsense do GHR. MÉTODOS: O paciente foi avaliado aos 6 anos de idade para baixa estatura associada ao fenótipo clínico da GHI. Níveis de GH, IGF-1 e GHBP foram determinados. Os produtos de PCR dos éxons 2-10 foram seqüenciados. RESULTADOS: O paciente apresentou níveis elevados de GH (26 µg/L, baixos de IGF-1 (22.5 ng/ml e indetectáveis de GHBP. O seqüenciamento do éxon 5 do GHR revelou uma duplicação da adenina no nucleotídeo 338 da sequência de codificação do GHR (c.338dupA em homozigose. CONCLUSÃO: Descrevemos uma nova mutação que causa um GHR truncado e uma perda da função do receptor devido à perda de aminoácidos compreendendo as regiões transmembrana e intracelular do receptor, levando a GHI.

  4. Guidelines for conducting pharmaceutical budget impact analyses for submission to public drug plans in Canada.

    Science.gov (United States)

    Marshall, Deborah A; Douglas, Patrick R; Drummond, Michael F; Torrance, George W; Macleod, Stuart; Manti, Orlando; Cheruvu, Lokanadha; Corvari, Ron

    2008-01-01

    Until now, there has been no standardized method of performing and presenting budget impact analyses (BIAs) in Canada. Nevertheless, most drug plan managers have been requiring this economic data to inform drug reimbursement decisions. This paper describes the process used to develop the Canadian BIA Guidelines; describes the Guidelines themselves, including the model template; and compares this guidance with other guidance on BIAs. The intended audience includes those who develop, submit or use BIA models, and drug plan managers who evaluate BIA submissions. The Patented Medicine Prices Review Board (PMPRB) initiated the development of the Canadian BIA Guidelines on behalf of the National Prescription Drug Utilisation Information System (NPDUIS). The findings and recommendations from a needs assessment with respect to BIA submissions were reviewed to inform guideline development. In addition, a literature review was performed to identify existing BIA guidance. The detailed guidance was developed on this basis, and with the input of the NPDUIS Advisory Committee, including drug plan managers from multiple provinces in Canada and a representative from the Canadian Agency for Drugs and Technologies in Health. A Microsoft Excel-based interactive model template was designed to support BIA model development. Input regarding the guidelines and model template was sought from each NPDUIS Advisory Committee member to ensure compatibility with existing drug plan needs. Decisions were made by consensus through multiple rounds of review and discussion. Finally, BIA guidance in Canadian provinces and other countries were compared on the basis of multiple criteria. The BIA guidelines consist of three major sections: Analytic Framework, Inputs and Data Sources, and Reporting Format. The Analytic Framework section contains a discussion of nine general issues surrounding BIAs (model design, analytic perspective, time horizon, target population, costing, scenarios to be compared, the characterisation of uncertainty, discounting, and validation methods). The Inputs and Data Sources section addresses methods for market size estimation, comparator selection, scenario forecasting and drug price estimation. The Reporting Format section describes methods for BIA reporting. The new Canadian BIA Guidelines represent a significant departure from the limited guidance that was previously available from some of the provinces, because they include specific details of the methods of performing BIAs. The Canadian BIA Guidelines differ from the Principles of Good Research Practice for BIAs developed by the International Society for Pharmacoeconomic and Outcomes Research (ISPOR), which provide more general guidance. The Canadian BIA Guidelines and template build upon existing guidance to address the specific requirements of each of the participating drug plans in Canada. Both have been endorsed by the NPDUIS Steering Committee and the PMPRB for the standardization of BIA submissions. PMID:18489199

  5. Body composition measures of obese adolescents by the deuterium oxide dilution method and by bioelectrical impedance

    Scientific Electronic Library Online (English)

    C.M.M., Resende; J.S., Camelo Júnior; M.N.C.M., Vieira; E., Ferriolli; K., Pfrimer; G.S.C., Perdoná; J.P., Monteiro.

    1164-11-01

    Full Text Available The objectives of the present study were to describe and compare the body composition variables determined by bioelectrical impedance (BIA) and the deuterium dilution method (DDM), to identify possible correlations and agreement between the two methods, and to construct a linear regression model inc [...] luding anthropometric measures. Obese adolescents were evaluated by anthropometric measures, and body composition was assessed by BIA and DDM. Forty obese adolescents were included in the study. Comparison of the mean values for the following variables: fat body mass (FM; kg), fat-free mass (FFM; kg), and total body water (TBW; %) determined by DDM and by BIA revealed significant differences. BIA overestimated FFM and TBW and underestimated FM. When compared with data provided by DDM, the BIA data presented a significant correlation with FFM (r = 0.89; P

  6. Body composition measures of obese adolescents by the deuterium oxide dilution method and by bioelectrical impedance

    Directory of Open Access Journals (Sweden)

    C.M.M. Resende

    2011-11-01

    Full Text Available The objectives of the present study were to describe and compare the body composition variables determined by bioelectrical impedance (BIA and the deuterium dilution method (DDM, to identify possible correlations and agreement between the two methods, and to construct a linear regression model including anthropometric measures. Obese adolescents were evaluated by anthropometric measures, and body composition was assessed by BIA and DDM. Forty obese adolescents were included in the study. Comparison of the mean values for the following variables: fat body mass (FM; kg, fat-free mass (FFM; kg, and total body water (TBW; % determined by DDM and by BIA revealed significant differences. BIA overestimated FFM and TBW and underestimated FM. When compared with data provided by DDM, the BIA data presented a significant correlation with FFM (r = 0.89; P < 0.001, FM (r = 0.93; P < 0.001 and TBW (r = 0.62; P < 0.001. The Bland-Altman plot showed no agreement for FFM, FM or TBW between data provided by BIA and DDM. The linear regression models proposed in our study with respect to FFM, FM, and TBW were well adjusted. FFM obtained by DDM = 0.842 x FFM obtained by BIA. FM obtained by DDM = 0.855 x FM obtained by BIA + 0.152 x weight (kg. TBW obtained by DDM = 0.813 x TBW obtained by BIA. The body composition results of obese adolescents determined by DDM can be predicted by using the measures provided by BIA through a regression equation.

  7. The use of bioelectrical impedance analysis for body composition in epidemiological studies

    DEFF Research Database (Denmark)

    Böhm, A; Heitmann, B L

    2013-01-01

    BACKGROUND/OBJECTIVES: Bioelectrical impedance analysis (BIA) is a relatively simple, inexpensive and non-invasive technique to measure body composition and is therefore suitable in field studies and larger surveys. SUBJECTS/METHODS: We performed an overview of BIA-derived body fat percentages (BF%) from 55 published studies of healthy populations aged 6-80 years. In addition, the relationship between body mass index (BMI) and body composition is documented in the context of BIA as a good alternative to closely differentiate which composition of the body better relates to the risk of cardiovascular diseases (CVDs)and all-cause mortality. RESULTS AND CONCLUSIONS: BIA-estimated percentage of BF varies greatly with population and age. BIA-estimated BF% is directly and closely related to various health outcomes such as CVDs, which is in contrast to BMI where both high and low BMIs are associated with increased risk of developing chronic diseases. Studies, among others using BIA, suggest that low BMI may reflectlow muscle and high BMI fat mass (FM). BIA-derived lean and FM is directly associated with morbidity and mortality. To the contrary, BMI is rather of limited use for measuring BF% in epidemiological studies.

  8. Bioelectrical impedance analysis--part I : review of principles and methods

    DEFF Research Database (Denmark)

    Kyle, Ursula G; Bosaeus, Ingvar

    2004-01-01

    The use of bioelectrical impedance analysis (BIA) is widespread both in healthy subjects and patients, but suffers from a lack of standardized method and quality control procedures. BIA allows the determination of the fat-free mass (FFM) and total body water (TBW) in subjects without significant fluid and electrolyte abnormalities, when using appropriate population, age or pathology-specific BIA equations and established procedures. Published BIA equations validated against a reference method in a sufficiently large number of subjects are presented and ranked according to the standard error of the estimate. The determination of changes in body cell mass (BCM), extra cellular (ECW) and intra cellular water (ICW) requires further research using a valid model that guarantees that ECW changes do not corrupt the ICW. The use of segmental-BIA, multifrequency BIA, or bioelectrical spectroscopy in altered hydration states also requires further research. ESPEN guidelines for the clinical use of BIA measurements are described in a paper to appear soon in Clinical Nutrition.

  9. Validating an operational physical method to compute surface radiation from geostationary satellites

    Science.gov (United States)

    Sengupta, Manajit; Heidinger, Andrew; Miller, Steven

    2010-08-01

    Models to compute global horizontal irradiance (GHI) and direct normal irradiance (DNI) have been in development over the last three decades. These models can be classified as empirical or physical based on the approach. Empirical models relate ground-based observations with satellite measurements and use these relations to compute surface radiation. Physical models consider the physics behind the radiation received at the satellite and create retrievals to estimate surface radiation. While empirical methods have been traditionally used for computing surface radiation for the solar energy industry, the advent of faster computing has made operational physical models viable. The Global Solar Insolation Project (GSIP) is a physical model that computes DNI and GHI using the visible and infrared channel measurements from a weather satellite. GSIP uses a two-stage scheme that first retrieves cloud properties and uses those properties in a radiative transfer model to calculate GHI and DNI. Developed for polar orbiting satellites, GSIP has been adapted to NOAA's Geostationary Operation Environmental Satellite series and can run operationally at high spatial resolutions. This method holds the possibility of creating high quality datasets of GHI and DNI for use by the solar energy industry. We present an outline of the methodology and results from running the model as well as a validation study using ground-based instruments.

  10. U.S.-MEXICO BORDER PROGRAM ARIZONA BORDER STUDY--QA ANALYTICAL RESULTS FOR PAHS IN BLANK SAMPLES

    Science.gov (United States)

    The PAHs in Blanks data set contains the analytical results for measurements of up to 26 polynuclear aromatic hydrocarbons (PAHs) in 27 blank samples of indoor air, outdoor air, and food. The PAHs of interest include Anthracene (CAS # 120-12-7), Benzo(ghi)pyrelene (CAS# 191-24-2...

  11. Bioimpedância elétrica e gordura visceral: uma comparação com a tomografia computadorizada em adultos e idosos / Bioelectrical impedance and visceral fat: a comparison with computed tomography in adults and elderly

    Scientific Electronic Library Online (English)

    Michaela, Eickemberg; Carolina Cunha de, Oliveira; Anna Karla Carneiro, Roriz; Gardênia Abreu Vieira, Fontes; Adriana Lima, Mello; Lílian Ramos, Sampaio.

    2013-02-01

    Full Text Available OBJETIVO: Avaliar a associação entre bioimpedância elétrica (BIA) e gordura visceral (GV) em adultos e idosos. SUJEITOS E MÉTODOS: Estudo transversal, 191 indivíduos (52% mulheres, 49% idosos), estratificados por sexo, grupo etário e massa corporal. Obtiveram-se dados sobre tomografia computadorizad [...] a (área de GV) e BIA (percentual de gordura corporal total (%GCT-BIA), ângulo de fase, reactância e resistência). Análise estatística: Coeficiente de Correlação de Pearson, Anova, Qui-quadrado de Pearson, Curva ROC. RESULTADOS: Áreas de GV > 130 cm² foram mais observadas em idosos e em homens. Entre as mulheres adultas, mostrou-se correlação mais forte entre GV e %GCT-BIA. Os demais grupos apresentaram resultados semelhantes e correlações estatisticamente significantes. As correlações entre GV e ângulo de fase foram fracas e sem significância estatística. As análises da Curva ROC indicaram os seguintes %GCT-BIA que identificaram excesso de GV: homens: 21,5% (adultos), 24,25% (idosos); mulheres: 35,05% (adultas), 38,45% (idosas), com sensibilidade de 78,6%, 82,1%, 83,3%, 66,7% e especificidade de 70,6%, 62,5%, 79,1%, 69%, respectivamente. CONCLUSÃO: BIA apresentou satisfatória sensibilidade e especificidade para predizer GV, entretanto, outros aparelhos e técnicas devem ser investigados para melhorar essa predição. Abstract in english OBJECTIVE: To evaluate the association between electrical bioimpedance analysis (BIA) and visceral fat (VF) in adult and elderly patients. SUBJECTS AND METHODS: This was a cross-sectional study, with a sample of 191 subjects (52% women, 49% elderly) stratified by sex, age and body mass. Computerized [...] tomography (VF area) and BIA (percentage of total body fat (%TBF-BIA), phase angle, reactance and resistance) data were generated. Statistical analysis was based on Pearson's Correlation Coefficient, Anova, Pearson's Chi-square, and ROC curves. RESULTS: VF areas > 130 cm² were more prevalent among the elderly and among men. Adult females showed a stronger correlation between GV and %TBF-BIA. The other groups showed similar results and statistically significant correlations. Correlations between GV and phase angle were weak and not statistically significant. ROC Curves analyzes showed the following %TBF-BIA, which identified excess VF: for male subjects: 21.5% (adults) and 24.25% (elderly); for female subjects: 35.05% (adults) and 38.45% (elderly) with sensitivity of 78.6%, 82.1%, 83.3%, and 66.7%, and specificity of 70.6%, 62.5%, 79.1%, and 69%, respectively. CONCLUSION: BIA was found to have satisfactory sensitivity and specificity to predict VF; however, other devices and other techniques should be investigated to improve VF prediction.

  12. 77 FR 43782 - Acquisition Regulations; Buy Indian Act; Procedures for Contracting

    Science.gov (United States)

    2012-07-26

    ...include additional qualifications beyond what were included in previous versions...take part in the policy-making, budgeting, controlling, directing, coordinating...The BIA has no regulatory authority beyond itself to implement the Buy...

  13. 25 CFR 166.100 - What special tribal policies will we apply to permitting on Indian agricultural lands?

    Science.gov (United States)

    2010-04-01

    ...OF THE INTERIOR LAND AND WATER GRAZING PERMITS Tribal Policies and Laws Pertaining...establishing a general policy for permitting of Indian agricultural lands, the BIA will...establishing a general policy for permitting of Indian agricultural lands, and subject...

  14. 75 FR 47621 - Final Environmental Impact Statement for the North Fork Rancheria's Proposed 305-Acre Trust...

    Science.gov (United States)

    2010-08-06

    ...Environmental Impact Statement for the North Fork Rancheria's Proposed 305-Acre...BIA) as lead agency, with the North Fork Rancheria of Mono Indians (Tribe), California...unincorporated Madera County, just north of the City of Madera,...

  15. 25 CFR 1000.67 - How will the Director award planning and negotiation grants?

    Science.gov (United States)

    2010-04-01

    ...How will the Director award planning and negotiation grants? 1000.67 Section 1000...Financial Assistance for Planning and Negotiation Grants for Non-BIA Programs Eligibility...will the Director award planning and negotiation grants? The Director must...

  16. 25 CFR 1000.63 - Under what circumstances may planning and negotiation grants be awarded to Tribes/Consortia?

    Science.gov (United States)

    2010-04-01

    ...Under what circumstances may planning and negotiation grants be awarded to Tribes/Consortia...Financial Assistance for Planning and Negotiation Grants for Non-BIA Programs Eligibility...what circumstances may planning and negotiation grants be awarded to...

  17. 25 CFR 166.220 - What are the basic steps for acquiring a permit through negotiation?

    Science.gov (United States)

    2010-04-01

    ...steps for acquiring a permit through negotiation? 166.220 Section 166.220 ...steps for acquiring a permit through negotiation? The basic steps for acquiring a permit by negotiation are as follows: (a) The BIA...

  18. 76 FR 2703 - Draft Environmental Impact Statement for the Big Sandy Rancheria Band of Western Mono Indians...

    Science.gov (United States)

    2011-01-14

    ...BIA) as lead agency, with the Big Sandy Rancheria Band of Western...SUPPLEMENTARY INFORMATION: The Big Sandy Rancheria is a federally...Tribal Council consisting of five members, under a federally approved constitution. The Big Sandy Rancheria currently...

  19. 76 FR 72717 - Draft Environmental Impact Statement for the Proposed KRoad Moapa Solar Generation Facility...

    Science.gov (United States)

    2011-11-25

    ...Proposed KRoad Moapa Solar Generation Facility, Clark County...Indian Affairs (BIA) as the lead Federal agency, with the...proposed KRoad Moapa Solar Generation Facility on the Moapa River...350 megawatt (MW) solar generation facility and associated...

  20. 77 FR 15794 - Final Environmental Impact Statement for the Proposed KRoad Moapa Solar Generation Facility...

    Science.gov (United States)

    2012-03-16

    ...Proposed KRoad Moapa Solar Generation Facility, Clark County...Indian Affairs (BIA) as the lead Federal agency, with the...proposed KRoad Moapa Solar Generation Facility on the Moapa River...350 megawatt (MW) solar generation facility and associated...

  1. 78 FR 15035 - Extension, Without Changes of Agency Information Collection for Indian Self-Determination and...

    Science.gov (United States)

    2013-03-08

    ...basis. Both the BIA and IHS award contracts for multiple programs whereas...agencies to administer and evaluate contract programs. Tribal governments...information by submitting Public Law 93-638 contract proposals to the appropriate...

  2. 25 CFR 170.406 - How must tribes use planning funds?

    Science.gov (United States)

    2010-04-01

    ...planning funds? (a) IRR Program funds as defined in 23 U.S.C. 204...by the BIA Regional Office. These funds support development and implementation...meetings; (2) Pursuing other sources of funds; and (3) Developing the...

  3. 25 CFR 170.812 - What is emergency maintenance?

    Science.gov (United States)

    2010-04-01

    ...2010-04-01 false What is emergency maintenance? 170.812 Section 170.812 Indians...INDIAN RESERVATION ROADS PROGRAM BIA Road Maintenance § 170.812 What is emergency maintenance? Emergency maintenance is...

  4. 25 CFR Appendix B to Subpart B - Sources of Tribal Transportation Training and Education Opportunities

    Science.gov (United States)

    2010-04-01

    ...BIA Indian Highway Safety Program 19. FHWA/STIPDG and NSTISS Student Internship Programs (Summer Transportation Internship Program for Diverse Groups and National Summer Transportation Institute for Secondary Students) 20....

  5. 78 FR 54669 - Draft Environmental Impact Statement for the Proposed RES Americas Moapa Solar Energy Center...

    Science.gov (United States)

    2013-09-05

    ...the Proposed RES Americas Moapa Solar Energy Center, Clark County, Nevada...the proposed RES Americas Moapa Solar Energy Center on the Moapa River Indian...action is the BIA approval of a solar energy ground lease and agreements...

  6. 77 FR 14561 - Tribal Consultation Sessions-Administrative Organizational Assessment Draft Report...

    Science.gov (United States)

    2012-03-12

    ...Johnson-O'Malley Student Count Update, or Draft SF- 424B Assurance Statement--Non-construction Programs, contact: Brian Drapeaux, Chief of Staff, Bureau of Indian Education, (202) 208-6123. SUPPLEMENTARY INFORMATION: The AS-IA, BIA, and...

  7. 68 FR 19845 - Working Group on Land Consolidation Program: Call for Nominations

    Science.gov (United States)

    2003-04-22

    ...fractionation, problems caused by fractionation, and the universe of possible solutions. DATES: All nominations must be postmarked...financial transactions, and decrease the number of interests subject to probate. Starting in 2004, the BIA will oversee the...

  8. 25 CFR 1000.198 - How must a limitation or reduction in services, contracts, or funds be remedied?

    Science.gov (United States)

    2010-04-01

    ...DEPARTMENT OF THE INTERIOR ANNUAL FUNDING AGREEMENTS UNDER THE TRIBAL SELF-GOVERNMENT ACT AMENDMENTS TO THE INDIAN...funds be remedied? (a) If funding a participating Tribe...year BIA must use shortfall funding, supplemental funding,...

  9. 25 CFR 1000.80 - What is the purpose of this subpart?

    Science.gov (United States)

    2010-04-01

    ...DEPARTMENT OF THE INTERIOR ANNUAL FUNDING AGREEMENTS UNDER THE TRIBAL SELF-GOVERNMENT ACT AMENDMENTS TO THE INDIAN...AND EDUCATION ACT Annual Funding Agreements for Bureau of Indian...describes the components of annual funding agreements for BIA...

  10. 25 CFR 1000.193 - Who may raise the issue of limitation or reduction of services, contracts, or funding?

    Science.gov (United States)

    2010-04-01

    ...of services, contracts, or funding? 1000.193 Section 1000...DEPARTMENT OF THE INTERIOR ANNUAL FUNDING AGREEMENTS UNDER THE TRIBAL SELF-GOVERNMENT ACT AMENDMENTS TO THE INDIAN...services, contracts, or funding? BIA or any...

  11. Gloiodon strigosus (Swartz: Fr.) P. Karst. (Bondarzewiaceae) in Poland

    OpenAIRE

    Anna Bujakiewicz

    2007-01-01

    Gloiodon strigosus (Swartz: Fr.) P. Karst. recognized as an extinct species in Poland, has been recently found in the Bia?owie?a National Park. Iconography and synonyms are given and the distribution and ecology is discussed.

  12. Comparação da gordura corporal de mulheres idosas segundo antropometria, bioimpedância e DEXA

    Scientific Electronic Library Online (English)

    Aline, Rodrigues Barbosa; José Maria, Santarém; Wilson Jacob, Filho; Eduardo, Souza Meirelles; Maria de Fátima, Nunes Marucci.

    2001-03-01

    Full Text Available Verificar a concordância e comparar o percentual de gordura corporal (%GC) através das medidas de dobras cutâneas (DC), bioimpedância (BIA) e DEXA. Foram avaliadas vinte mulheres voluntárias (62 a 79 anos), utilizando-se duas equações distintas para DC (19, 20) e BIA (23) e avaliação por DEXA. As es [...] timativas do %GC foram comparadas através de análise de variância para medidas repetidas (ANOVA- Bonferroni), a correlação foi verificada pelo coef. de Pearson e a concordância pelo procedimento de Bland & Altman (25). O %GC obtido pela BIA apresentou baixa correlação (r0,05) entre os métodos e/ou equações de BIA(RJL-CompCorp) vs. DC-Jackson (19). Para todas as outras comparações, as diferenças foram significativas (p Abstract in english Comparison of body fat using anthropometry, bioelectrical impedance and DEXA in elderly women. Verify correspondence and compare percentage body fat (%BF) estimates by skinfold thickness (SKT), bioelectrical impedance analysis (BIA) and DEXA. Twenty voluntaries women (aged 62 - 79 yr) were assessed. [...] The body fat was estimated using two different equations of SKT(Jackson (19); Durning and Womersley, (20)), BIA using two-predictions formulas (23) and DEXA. To compare mean values of %BF was used analysis of variance for repeated measures (ANOVA _ Bonferroni), the correlation of the inter-method was verified by Pearson correlation coefficients (r), and correspondence between prediction formulas was tested by using the approach by Bland and Altman (25). The %BF assessed by BIA (23) shown poor correlation (r0,05) between methods and/or equations by BIA (RJL-CompCorp) vs. DC-Jackson (19). There were observed significant differences (p

  13. Foot-to-foot bioelectrical impedance accurately tracks direction of adiposity change in overweight and obese 7- to 13-year-old children.

    Science.gov (United States)

    Kasvis, Popi; Cohen, Tamara R; Loiselle, Sarah-Ève; Kim, Nicolas; Hazell, Tom J; Vanstone, Catherine A; Rodd, Celia; Plourde, Hugues; Weiler, Hope A

    2015-03-01

    Body composition measurements are valuable when evaluating pediatric obesity interventions. We hypothesized that foot-to-foot bioelectrical impedance analysis (BIA) will accurately track the direction of adiposity change, but not magnitude, in part due to differences in fat patterning. The purposes of this study were to examine the accuracy of body composition measurements of overweight and obese children over time using dual-energy x-ray absorptiometry (DXA) and BIA and to determine if BIA accuracy was affected by fat patterning. Eighty-nine overweight or obese children (48 girls, 41 boys, age 7-13 years) participating in a randomized controlled trial providing a family-centered, lifestyle intervention, underwent DXA and BIA measurements every 3 months. Bland-Altman plots showed a poor level of agreement between devices for baseline percent body fat (%BF; mean, 0.398%; +2SD, 8.685%; -2SD, -7.889%). There was overall agreement between DXA and BIA in the direction of change over time for %BF (difference between visits 3 and 1: DXA -0.8 ± 0.5%, BIA -0.7 ± 0.5%; P = 1.000) and fat mass (FM; difference between visits 3 and 1: DXA 0.7 ± 0.5 kg, BIA 0.6 ± 0.5 kg; P = 1.000). Bioelectrical impedance analysis measurements of %BF and FM at baseline were significantly different in those with android and gynoid fat (%BF: 35.9% ± 1.4%, 32.2% ± 1.4%, P < .003; FM: 20.1 ± 0.8 kg, 18.4 ± 0.8, P < .013). Bioelectrical impedance analysis accurately reports the direction of change in FM and FFM in overweight and obese children; inaccuracy in the magnitude of BIA measurements may be a result of fat patterning differences. PMID:25697463

  14. Body composition by bioelectrical impedance analysis in children below 7 years old

    OpenAIRE

    Jiyoung Jung; Han Wool Kim; Tae Hyun Kim; Young Mi Hong,

    2010-01-01

    Purpose : Body composition is important to define and manage obesity and undernutrition. Obesity is a significant health problem with medical and psychological consequences for children and adolescents. Body composition analysis (BIA) is a simple, rapid, noninvasive, and reproducible technique. However, comparative analysis of body composition has not been done in young children below 7 years old. The aim of this study is to estimate antropometric data and body composition by BIA, and to inve...

  15. Estimativa da gordura corporal através de equipamentos de bioimpedância, dobras cutâneas e pesagem hidrostática Comparison of body fat estimation by bioelectric impedance, skinfold thickness, and underwater weighing

    OpenAIRE

    Maurício Nunes Rodrigues; Sidney Cavalcante da Silva; Walace David Monteiro; Paulo de Tarso Veras Farinatti

    2001-01-01

    A estimativa do percentual de gordura (%G) pela bioimpedância (BIA) tem como vantagem a simplicidade da medida. Contudo, a confiabilidade da BIA tem sofrido críticas. O objetivo deste estudo foi comparar a estimativa do %G através das técnicas de bioimpedância (RJL-101; Byodinamics A-310, Maltron BF-900 e BF-906), de dobras cutâneas (DC) e da pesagem hidrostática (PH). Observaram-se 25 indivíduos, homogeneizados segundo raça (branca), gênero (masculino) e idade (18 a 36 anos). Para a medida d...

  16. Determining the In-Pipe Anaerobic Processing Distance before Draining to Oxidation Pond of Municipal Wastewater Treatment

    OpenAIRE

    Satreethai Poommai; Kasem Chunkao; Narauchid Dumpin; Saowalak Boonmang; Chatri Nimpee

    2013-01-01

    H. M. The King's initiative Laem Phak Bia environmental research and development (LERD) project has been selected Laem Phak Bia sub-district, Ban Laem district, Petchaburi province which is about 18.5 km away from points sources at Petchaburi municipal. Transferring community wastewater was really needed to take HPDE pipe because of high pressure requirement for 50-cm head between Klongyang pumping station to the project site and also unpleasant smell in case of using open channel sewer syste...

  17. New aquatic sites of the fungus Sommerstorffia spinosa

    OpenAIRE

    Bazyli Czeczuga; Bo?ena Mazalska; Miros?awa Or?owska

    2000-01-01

    When studying zoosporic fungi in the waters of northeastern Poland tbe authors found new sites of a rare fungus - Sommerstorffia spinosa Arnaudow. Its growth was observed in water samples collected from limnologically different reservoirs, from the spring Jaroszówka, the oligotrophic type (Lake Bia?e), through mesotrophic (Lake Wigry) to the polytrophic type (pond Fosa with high content of hydrogen sulphide under ice cover). This fungus was also found in the river Bia?a, which flowing thro...

  18. Bioelectrical impedance and visceral fat: a comparison with computed tomography in adults and elderly; Bioimpedancia eletrica e gordura visceral: uma comparacao com a tomografia computadorizada em adultos e idosos

    Energy Technology Data Exchange (ETDEWEB)

    Eickemberg, Michaela [Universidade Federal da Bahia (UFBA), Salvador, BA (Brazil); Roriz, Anna Karla Carneiro [Universidade Federal da Bahia (UFBA), Salvador, BA (Brazil); Fontes, Gardenia Abreu Vieira [Universidade Federal da Bahia (UFBA), Salvador, BA (Brazil); Sampaio, Lilian Ramos [Universidade Federal de Sao Paulo (Unifesp), Sao Paulo, SP (Brazil)

    2013-05-01

    Objective: To evaluate the association between electrical bioimpedance analysis (BIA) and visceral fat (VF) in adult and elderly patients. Subjects and methods: This was a cross-sectional study, with a sample of 191 subjects (52% women, 49% elderly) stratified by sex, age and body mass. Computerized tomography (VF area) and BIA (percentage of total body fat (%TBF-BIA), phase angle, reactance and resistance) data were generated. Statistical analysis was based on Pearson's Correlation Coefficient, Anova, Pearson's Chi-square, and ROC curves. Results: VF areas {>=} 130 cm{sup 2} were more prevalent among the elderly and among men. Adult females showed a stronger correlation between GV and %TBF-BIA. The other groups showed similar results and statistically significant correlations. Correlations between GV and phase angle were weak and not statistically significant. ROC Curves analyzes showed the following %TBF-BIA, which identified excess VF: for male subjects: 21.5% (adults) and 24.25% (elderly); for female subjects: 35.05% (adults) and 38.45% (elderly) with sensitivity of 78.6%, 82.1%, 83.3%, and 66.7%, and specificity of 70.6%, 62.5%, 79.1%, and 69%, respectively. Conclusion: BIA was found to have satisfactory sensitivity and specificity to predict VF; however, other devices and other techniques should be investigated to improve VF prediction. (author)

  19. Bioelectrical impedance and visceral fat: a comparison with computed tomography in adults and elderly

    International Nuclear Information System (INIS)

    Objective: To evaluate the association between electrical bioimpedance analysis (BIA) and visceral fat (VF) in adult and elderly patients. Subjects and methods: This was a cross-sectional study, with a sample of 191 subjects (52% women, 49% elderly) stratified by sex, age and body mass. Computerized tomography (VF area) and BIA (percentage of total body fat (%TBF-BIA), phase angle, reactance and resistance) data were generated. Statistical analysis was based on Pearson's Correlation Coefficient, Anova, Pearson's Chi-square, and ROC curves. Results: VF areas ? 130 cm2 were more prevalent among the elderly and among men. Adult females showed a stronger correlation between GV and %TBF-BIA. The other groups showed similar results and statistically significant correlations. Correlations between GV and phase angle were weak and not statistically significant. ROC Curves analyzes showed the following %TBF-BIA, which identified excess VF: for male subjects: 21.5% (adults) and 24.25% (elderly); for female subjects: 35.05% (adults) and 38.45% (elderly) with sensitivity of 78.6%, 82.1%, 83.3%, and 66.7%, and specificity of 70.6%, 62.5%, 79.1%, and 69%, respectively. Conclusion: BIA was found to have satisfactory sensitivity and specificity to predict VF; however, other devices and other techniques should be investigated to improve VF prediction. (author)

  20. Efficiency of resource use in small-scale white shrimp (Penaeus vannamei production in Lamongan Regency, East Java Province, Indonesia Wydajno?? wykorzystania zasobów w produkcji bia?ej krewetki (Penaeus vannamei na ma?? skal? w regencji Lamongan, prowincji Wschodnia Jawa w Indonezji

    Directory of Open Access Journals (Sweden)

    Riski A. Lestariadi

    2012-12-01

    Full Text Available This study carried out to determine the efficiency of recourses used in white shrimp (Pe-naeus Vannamei production in Lamongan Regency, East Java Province, Indonesia. The simple random sampling technique used to select 125 small-scale white shrimp farmers from six-study areas in Lamongan Regency. The white shrimp production function was es-timated using Ordinary Least Square (OLS technique. The results indicated that Double Log production function had the best fit in explaining the relationship between output of white shrimp and inputs used. The coefficient of determination (R2 = 0.846 indicated that the eighty-four point six percent of variation in output of white shrimp was explained by the independent variables in the model. Findings showed that labor, fertilizer, feed and stocking density are significant determinants of production inputs. Moreover, the estimates of the ra-tio of the value of marginal product (VMP to marginal factor cost (MFC revealed that the non-optimal combination of inputs among the white shrimp farmers, it showed that the aq-uaculture farms resources were inefficiently utilized for labor, feed and stocking density by 1.94, 1.93 and 171.4 respectively, while fertilizer showed otherwise by 0.11 or over uti-lized.

  1. A comparison of fat mass and skeletal muscle mass estimation in male ultra-endurance athletes using bioelectrical impedance analysis and different anthropometric methods Comparación de la masa grasa y muscular estimada en atletas varones de ultra-resistencia utilizando la bioimpedancia eléctrica y diferentes métodos antropométricos

    Directory of Open Access Journals (Sweden)

    B. Knechtle

    2011-12-01

    Full Text Available Two hundred and fifty seven male Caucasian ultraendurance athletes were recruited, pre-race, before different swimming, cycling, running and triathlon races. Fat mass and skeletal muscle mass were estimated using bioelectrical impedance analysis (BIA and anthropometric methods in order to investigate whether the use of BIA or anthropometry would be useful under field conditions. Total body fat estimated using BIA was significantly high (P Se reclutaron a 257 hombres caucasianos que eran atletas de alto rendimiento, antes de competir en diferentes pruebas triatlón de natación, ciclismo y carrera. Se estimaron la masa grasa y la masa de músculo esquelético utilizando un análisis de impedancia bioeléctrica (BIA y métodos antropométricos con el fin de investigar si el uso de BIA o de la antropometría sería útil en tales condiciones de campo. La grasa corporal total estimada por BIA fue significativamente mayor en comparación con la antropometría (P < 0,001. Cuando se compararon los resultados entre BIA y antropometría, se encontraron niveles de concordancia bajos a moderados. Estos resultados concuerdan con las diferencias halladas con el análisis Bland-Altman, lo que indica que la ecuación antropométrica de Ball et al. posee el mayor grado de concordancia (desviación = -3,0 ± 5,8 kg con BIA, con Stewart et al. (desviación = -6,4 ± 6,3 kg, Faulkner (desviación = -4,7 ± 5,8 kg y Wilmore-Siri (desviación = -4,8 ± 6,2 kg. La estimación de la masa de músculo esquelético fue significativamente superior con BIAS que con antropometría (P < 0,001. Los resultados de la ICC y del método Bland-Altman muestran que la ecuación antropométrica de Lee et al. (desviación = -5,4 ± 5,3 kg produjo el mayor grado de concordancia. El método combinado de Janssen et al. entre antropometría y BIA mostró el menor grado de concordancia (desviación = -12,5 ± 5,7 kg. Hubo una diferencia estadísticamente significativa entre los resultados derivados de la ecuación de Lee et al. y de la de Janssen et al. (P < 0,001. En resumen, la determinación de la composición corporal en atletas de alto rendimiento utilizando BIA produjo valores significativamente mayores de masa grasa y músculo esquelético en comparación con las ecuaciones antropométricas.

  2. Composición corporal en niños preescolares: comparación entre métodos antropométricos simples, bioimpedancia y absorciometría de doble haz de rayos X / Body composition by simple anthropometry, bioimpedance and DXA in preschool children: interrelationships among methods

    Scientific Electronic Library Online (English)

    Patricia N, Rodríguez; Enrique F, Bermúdez; Gabriela S, Rodríguez; María A, Spina; Susana N, Zeni; Silvia M, Friedman; Ramón A, Exeni.

    2008-04-01

    Full Text Available Objetivo. Comparar la composición corporal estimada por dos métodos antropométricos simples y por impedanciometría (BIA, por sus siglas en inglés) y absorciometría de doble haz de rayos X (DXA, por sus siglas en inglés) y estudiar las correlaciones existentes entre ellos, en una población preescolar [...] de Argentina. Población, material y métodos. Se estudió transversalmente una población clínicamente sana, de edad comprendida entre 4 y 6 años, de 230 niños (118 varones y 112 niñas), que concurrían a Jardines Integrales de La Matanza, Argentina. Se determinó el índice de masa corporal (IMC), la circunferencia de cintura (Cci) y el contenido de grasa corporal, expresado como porcentaje, por BIA (Maltron BF- 900) y por DXA (densitómetro Lunar DPX-L, software pediátrico). Resultados. En IMC y Cci no se observaron diferencias estadísticamente significativas entre ambos sexos, pero sí en el porcentaje de grasa corporal por BIA o DXA. La correlación entre BIA y ambos métodos antropométricos fue moderada (r de Pearson= 0,43-0,53), al igual que entre DXA y Cci (r= 0,66), mientras que las demás correlaciones fueron fuertes (r= 0,71-0,83). Las medidas obtenidas por BIA y DXA no concordaron (prueba de Bland Altman); sin embargo, las diferencias se distribuyeron en forma homogénea a lo largo del eje horizontal e independientemente de las medias. BIA reprodujo valores más bajos de porcentaje de grasa corporal que DXA (p Abstract in english Objective. To examine the interrelationships of body composition variables derived from simple anthropometry, bioelectrical impedance (BIA) and dualenergy X-ray absorptiometry (DXA). Population, material and methods. A total of 230 healthy preschool children (118 males and 112 females) age 4-6 years [...] , attending a day care center, were examined to determine body mass index (BMI) and waist circumference (WC). Percentage of body fat content (%BF) was predicted by BIA (Maltron BF- 900) and DXA (Lunar DPX-L, pediatric software). Results. BMI and WC did not show significant differences among sex, while %BF by BIA or DXA did. BIA measures were lower than DXA´s (p

  3. Global solar radiation: Multiple on-site assessments in Abu Dhabi, UAE

    International Nuclear Information System (INIS)

    Renewable energy technology and in particular solar energy is being considered worldwide due to the fluctuations in oil prices, global warming and the growing demand for energy supply. This paper investigates the climate conditions available in the United Arab Emirates (UAE) in particular Abu Dhabi to implement Photovoltaic (PV) technology. Measured solar radiation was analyzed for five different geographical locations to ensure the suitability of this region. Hourly, daily and monthly global horizontal irradiation (GHI) were collected and processed. Statistical methods were used to evaluate the computed GHI and showed high values especially during the summer period. Moreover, clearness index was calculated to investigate the frequency of cloudy sky days and results have shown a high percentage of clear days during the year. This paper highlights a promising future for Abu Dhabi in the solar energy sector and in particular Photovoltaic (PV) technology. (author)

  4. Evaluating Solar Resource Data Obtained from Multiple Radiometers Deployed at the National Renewable Energy Laboratory: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Habte, A.; Sengupta, M.; Andreas, A.; Wilcox, S.; Stoffel, T.

    2014-09-01

    Solar radiation resource measurements from radiometers are used to predict and evaluate the performance of photovoltaic and concentrating solar power systems, validate satellite-based models for estimating solar resources, and advance research in solar forecasting and climate change. This study analyzes the performance of various commercially available radiometers used for measuring global horizontal irradiances (GHI) and direct normal irradiances (DNI). These include pyranometers, pyrheliometers, rotating shadowband irradiometers, and a pyranometer with a shading ring deployed at the National Renewable Energy Laboratory's Solar Radiation Research Laboratory (SRRL). The radiometers in this study were deployed for one year (from April 1, 2011, through March 31, 2012) and compared to measurements from radiometers with the lowest values of estimated measurement uncertainties for producing reference GHI and DNI.

  5. Greenbelt Homes Pilot Energy Efficiency Program Phase 1 Summary: Existing Conditions and Baseline Energy Use

    Energy Technology Data Exchange (ETDEWEB)

    Wiehagen, J.; Del Bianco, M.; Wood, A.

    2013-02-01

    A multi-year pilot energy efficiency retrofit project has been undertaken by Greenbelt Homes, Inc, (GHI) a 1,566 co-operative of circa 1930 and '40 homes. The three predominate construction methods of the townhomes in the community are materials common to the area and climate zone including 8" CMU block, wood frame with brick veneer and wood frame with vinyl siding. GHI has established a pilot project that will serve as a basis for decision making for the roll out of a decade-long community upgrade program that will incorporate energy efficiency to the building envelope and equipment with the modernization of other systems like plumbing, mechanical equipment, and cladding.

  6. The multidrug efflux regulator TtgV recognizes a wide range of structurally different effectors in solution and complexed with target DNA: evidence from isothermal titration calorimetry

    OpenAIRE

    Guazzaroni, Mari?a Eugenia; Krell, Tino; Felipe, Antonia; Ruiz, Raquel; Meng, Cuixiang; Zhang, Xiaodong; Gallegos, Mari?a Trinidad; Ramos, Juan L.

    2005-01-01

    TtgV modulates the expression of the ttgGHI operon, which encodes an efflux pump that extrudes a wide variety of chemicals including mono- and binuclear aromatic hydrocarbons, aliphatic alcohols, and antibiotics of dissimilar chemical structure. Using a 'lacZ fusion to the ttgG promoter, we show that the most efficient in vivo inducers were 1-naphthol, 2,3-dihydroxynaphthalene, 4-nitrotoluene, benzonitrile, and indole. The thermodynamic parameters for the binding of different effector molecul...

  7. Analysis and Prediction of Energy Production in Concentrating Photovoltaic (CPV) Installations

    OpenAIRE

    Allen Barnett; Xiaoting Wang; Go?mez-gil, Francisco J.

    2012-01-01

    A method for the prediction of Energy Production (EP) in Concentrating Photovoltaic (CPV) installations is examined in this study. It presents a new method that predicts EP by using Global Horizontal Irradiation (GHI) and the Photovoltaic Geographical Information System (PVGIS) database, instead of Direct Normal Irradiation (DNI) data, which are rarely recorded at most locations. EP at four Spanish CPV installations is analyzed: two are based on silicon solar cells and the other two on multi-...

  8. Characterization of Polycyclic Aromatic Hydrocarbons (PAHs) Present in Smoked Fish from Ghana

    OpenAIRE

    Linda M.N. Palm; Derick Carboo; Philip O.Yeboah; Winston J. Quasie; Mordecai A. Gorleku; Albert Darko

    2011-01-01

    The study was conducted to determine the levels of Polycyclic Aromatic Hydrocarbons (PAH) in smoked Scomba japonicus sampled from some Ghanaian markets. By way of preparation, smoked fish comes into contact with smoke or extremely high temperature which are potential sources of PAH generation. Levels of 20 individual PAHs including acenaphthene, acenaphtyelene, anthanthrene, anthracene, benz(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, benzo(e)pyrene, benzo(ghi)perylene, benzo(j)fluora...

  9. DETERMINACION SIMULTANEA DE SEIS HIDROCARBUROS POLICICLICOS AROMATICOS EN MEDIO MICELAR POR REGRESION DE MINIMOS CUADRADOS PARCIALES (PLS-1) UTILIZANDO ESPECTROS DE FLUORESCENCIA DE ANGULO VARIABLE LINEAL

    OpenAIRE

    Amador-hernandez, J.; Lopez-martinez, L.; Lopez-de-alba, P. L.; Caldera, A.; Estela, J. M.; Cerda, V.

    1999-01-01

    En este trabajo, se presenta la determinación espectrofuorimétrica simultánea de los hidrocarburos policíclicos aromáticos de interés medioambiental denominados benzo[ a] pireno, benzo[ e] pireno,benzo[ g,h,i] perileno, coroneno, dibenzo[ a,h] antraceno e indeno[ 1,2,3-c,d] pireno en medio micelar, utilizando el surfactante no iónico éterdel 10 laurilo polioxietileno (POLE). Con el fin de utilizar las señales de mayor sensibilidad para la determinación de cada uno de los compuestos ...

  10. Deficiência da STAT5B: uma nova síndrome de insensibilidade ao hormônio de crescimento associada a acometimento imunológico / STAT5B deficiency: a new growth hormone insensitivity syndrome associated to immunological dysfunction

    Scientific Electronic Library Online (English)

    Renata C., Scalco; Patrícia N., Pugliese-Pires; Alexander A. L., Jorge.

    2013-07-01

    Full Text Available Uma nova apresentação da insensibilidade ao hormônio de crescimento (IGH), causada por mutações em homozigose no gene STAT5B (transdutor de sinal e ativador de transcrição tipo 5B), foi caracterizada nos últimos anos. Sua particularidade é a associação com quadros de disfunção imunológica grave, sen [...] do o mais característico a pneumonite intersticial linfocítica. A presença concomitante de doenças crônicas imunológicas pode fazer com que a baixa estatura seja erroneamente considerada uma consequência do quadro clínico, levando ao subdiagnóstico dessa forma de IGH. O objetivo desta revisão é divulgar o conhecimento atual sobre essa rara patologia, facilitando o reconhecimento de pacientes com IGH secundária a mutações no gene STAT5B em ambulatórios de endocrinologia e de outras especialidades. Abstract in english A new presentation of growth hormone insensitivity (GHI) caused by homozygous mutations in STAT5B (signal transducer and activator of transcription 5B) gene has been characterized in the last years. Its particularity is the association with severe immune dysfunction, especially with lymphocytic inte [...] rstitial pneumonitis. This may mislead physicians into considering short stature as secondary to chronic immunological disease and consequently into underdiagnosing this form of GHI. The objective of this review is to propagate current knowledge about this rare pathology, facilitating the diagnosis of patients with GHI due to STAT5B mutations in endocrinology and other specialties clinics.

  11. Modeling the Cumulative Effects of Social Exposures on Health: Moving beyond Disease-Specific Models

    Directory of Open Access Journals (Sweden)

    Heather L. White

    2013-03-01

    Full Text Available The traditional explanatory models used in epidemiology are “disease specific”, identifying risk factors for specific health conditions. Yet social exposures lead to a generalized, cumulative health impact which may not be specific to one illness. Disease-specific models may therefore misestimate social factors’ effects on health. Using data from the Canadian Community Health Survey and Canada 2001 Census we construct and compare “disease-specific” and “generalized health impact” (GHI models to gauge the negative health effects of one social exposure: socioeconomic position (SEP. We use logistic and multinomial multilevel modeling with neighbourhood-level material deprivation, individual-level education and household income to compare and contrast the two approaches. In disease-specific models, the social determinants under study were each associated with the health conditions of interest. However, larger effect sizes were apparent when outcomes were modeled as compound health problems (0, 1, 2, or 3+ conditions using the GHI approach. To more accurately estimate social exposures’ impacts on population health, researchers should consider a GHI framework.

  12. Surface Radiation from GOES: A Physical Approach; Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Habte, A.; Sengupta, M.; Wilcox, S.

    2012-09-01

    Models to compute Global Horizontal Irradiance (GHI) and Direct Normal Irradiance (DNI) have been in development over the last 3 decades. These models can be classified as empirical or physical, based on the approach. Empirical models relate ground based observations with satellite measurements and use these relations to compute surface radiation. Physical models consider the radiation received from the earth at the satellite and create retrievals to estimate surface radiation. While empirical methods have been traditionally used for computing surface radiation for the solar energy industry the advent of faster computing has made operational physical models viable. The Global Solar Insolation Project (GSIP) is an operational physical model from NOAA that computes GHI using the visible and infrared channel measurements from the GOES satellites. GSIP uses a two-stage scheme that first retrieves cloud properties and uses those properties in a radiative transfer model to calculate surface radiation. NREL, University of Wisconsin and NOAA have recently collaborated to adapt GSIP to create a 4 km GHI and DNI product every 30 minutes. This paper presents an outline of the methodology and a comprehensive validation using high quality ground based solar data from the National Oceanic and Atmospheric Administration (NOAA) Surface Radiation (SURFRAD) (http://www.srrb.noaa.gov/surfrad/sitepage.html) and Integrated Surface Insolation Study (ISIS) http://www.srrb.noaa.gov/isis/isissites.html), the Solar Radiation Research Laboratory (SRRL) at National Renewable Energy Laboratory (NREL), and Sun Spot One (SS1) stations.

  13. Quantifying consumer portion control practices. A cross-sectional study.

    Science.gov (United States)

    Spence, M; Lähteenmäki, L; Stefan, V; Livingstone, M B E; Gibney, E R; Dean, M

    2015-09-01

    The use of portion control practices has rarely been quantified. The present study aimed to: (1) explore which portion control practices are actually used by the general population and their association with cognitive restraint, demographic background and general health interest (GHI), and (2) examine how the usage of portion control practices predicts the estimated consumption of an energy dense food (i.e. pizza). Twenty-two portion control practices were rated in terms of their frequency of use from 'never' to 'very often' by a representative sample of 1012 consumers from the island of Ireland. Three factors were extracted and named: measurement-strategy scale, eating-strategy scale, and purchasing-strategy scale. The eating-strategy scale score was the highest, while the measurement-strategy scale carried the lowest frequency score. For each strategy scale score, the strongest predictor was GHI, followed by gender. Having higher GHI and being female were independently associated with more frequent portion control. Both the eating-strategy scale score and the purchasing-strategy scale score were negatively associated with pizza portion size consumption estimates. In conclusion, while this study demonstrates that the reported use of portion control practices is low, the findings provide preliminary evidence for their validity. Further studies are needed to explore how portion control practices are used in different kinds of portion size decisions and what their contribution is to the intake of food over an extended period of time. PMID:26048005

  14. Estimativa da gordura corporal através de equipamentos de bioimpedância, dobras cutâneas e pesagem hidrostática / Comparison of body fat estimation by bioelectric impedance, skinfold thickness, and underwater weighing

    Scientific Electronic Library Online (English)

    Maurício Nunes, Rodrigues; Sidney Cavalcante da, Silva; Walace David, Monteiro; Paulo de Tarso Veras, Farinatti.

    2001-08-01

    Full Text Available A estimativa do percentual de gordura (%G) pela bioimpedância (BIA) tem como vantagem a simplicidade da medida. Contudo, a confiabilidade da BIA tem sofrido críticas. O objetivo deste estudo foi comparar a estimativa do %G através das técnicas de bioimpedância (RJL-101; Byodinamics A-310, Maltron BF [...] -900 e BF-906), de dobras cutâneas (DC) e da pesagem hidrostática (PH). Observaram-se 25 indivíduos, homogeneizados segundo raça (branca), gênero (masculino) e idade (18 a 36 anos). Para a medida de BIA foi utilizada a padronização proposta por Lukaski et al. (1985, 1986). Para as DC foram utilizadas as equações de å 3 DC e å 7 DC (Jackson, Pollock, 1978). Os valores de %G e de volume residual para PH foram preditos, respectivamente, pelas equações de Siri (1961) e Goldman e Becklake (1959). A análise estatística compreendeu: a) comparação entre os métodos através da ANOVA com medidas repetidas seguida de testes post-hoc de Tukey; b) correlação de Pearson (r); e c) cálculo do erro padrão de estimativa (SEE) das técnicas em relação à PH. Os resultados indicaram que: a) as medidas de BIA não diferiram significativamente, entre si, para o %G estimado; b) As medidas dos aparelhos A-310 e BF-906 não coincidiram com a PH (p Abstract in english The main advantage of the bioelectric impedance method (BIA) in the determination of body fat (%BF) is the simplicity of the procedure. However, its accuracy and reliability have been criticized. The purpose of this study was to compare the %BF obtained by BIA (RJL-101; Biodynamics A-310, Maltron BF [...] -900 e BF-906), by skinfold thickness (ST), and by underwater weighing (UW). Twenty-five subjects, divided in homogenous groups according to age (18 to 36 years), sex (men), and race (white) participated in the study. BIA measures were taken using the Lukaski et al. standardization (1985,1986). ST was taken by using the equation of 3 and 7 skinfolds (Jackson, Pollock, 1978). The values of %BF and residual volume for the UW were estimated by the Siri (1961) and Goldman and Becklake (1959) equations. Statistical analysis was calculated by: a) repeated measures ANOVA followed by the Tukey post-hoc test; b) Pearson (r) correlation; c) standard error of estimate (SEE) of the BIA and ST compared to UW. The results indicated that: a) there were no significant differences for %BF measures obtained by the BIA devices; b) the %BF obtained by the A-310 and BF-906 devices did not match with the UW measures (p

  15. Estimativa da massa muscular esquelética em mulheres idosas: validade da impedância bioelétrica / Validity of bioelectrical impedance analysis for the estimation of skeletal muscle mass in elderly women

    Scientific Electronic Library Online (English)

    Cassiano Ricardo, Rech; Eline, Salomons; Luiz Rodrigo Augustemak de, Lima; Edio Luiz, Petroski; Maria Fátima, Glaner.

    2010-04-01

    Full Text Available O presente estudo tem como objetivos: a) verificar a concordância entre os métodos da impedância bioelétrica (BIA) e da absortometria radiológica de dupla energia (DXA) para a estimativa da massa muscular esquelética (MME); e b) analisar o poder preditivo de variáveis antropométricas e da BIA para a [...] predição da MME em idosas. Foram avaliadas 120 mulheres (60 a 81 anos), residentes na região Sul do Brasil. Mensuraram-se as variáveis antropométricas (massa corporal e estatura); a resistência e hidratação dos tecidos livres de gordura foram medidas pela técnica da BIA tetrapolar (Biodinamics - BF-310), e pela DXA de corpo inteiro (Lunar Prodigy DF + 14319 Radiation e software 7.52.002 DPX-L). A diferença entre os métodos foi verificada pelo teste t pareado, análise dos resíduos e o coeficiente de correlação. O valor preditivo das variáveis antropométricas e de BIA foi verificado pela regressão linear múltipla, adotando nível de significância de p 0,01). Observou-se que a BIA subestimou em média 0,8kg (IC95%: -3,7; 2,0kg) a MME, quando comparada com a DXA. Foi observada alta correlação entre os métodos (r² = 0,75; p Abstract in english The objectives of the present study were: a) to determine the agreement between bioelectrical impedance analysis (BIA) and dual-energy X-ray absorptiometry (DXA) for the estimation of skeletal muscle mass (SMM), and b) to analyze the predictive power of anthropometric variables and BIA for the predi [...] ction of SMM in elderly women. A total of 120 women (60 to 81 years), living in the southern region of Brazil, were studied. Anthropometric variables (body weight and height) were measured. Resistance and hydration of fat-free tissues were measured by tetrapolar BIA (Biodynamics, BF-310) and by whole-body DXA (Lunar Prodigy DF + 14319 Radiation and DPX-L software, version 7.52.002). Differences between methods were determined using the paired t-test, analysis of residuals and correlation coefficient. The predictive value of the anthropometric variables and BIA was evaluated by multiple linear regression, adopting a level of significance of p

  16. V-dotO2max prediction from multi-frequency bioelectrical impedance analysis

    International Nuclear Information System (INIS)

    Bioelectrical impedance analysis (BIA) has been shown to be highly related to skeletal muscle mass and blood volume, both of which are important determinants of maximal oxygen uptake (V-dotO2max). The aim of the present study was therefore to investigate the ability of whole-body and segmental multi-frequency BIA to improve current nonexercise V-dotO2max prediction models. Data for V-dotO2max (mL min?1), anthropometry, self-reported physical activity (PA-R) and BIA were collected in 115 men and women. Multiple linear regression analysis (MLR) was used to develop the most parsimonious prediction model. Segmental BIA was not superior to whole-body measurements. Correlation coefficients between V-dotO2max and resistance indices were significantly higher at 500 kHz compared to 50 kHz (p 2max (r = 0.89). After adjusting for age, gender and PA-R, MLR revealed that the inclusion of intracellular resistance index was slightly, but significantly (p 2max (?1). In short, whole-body BIA marginally improves the accuracy of nonexercise V-dotO2max prediction models and its advantage is most pronounced in indis advantage is most pronounced in individuals with particularly low V-dotO2max

  17. Body composition by bioelectrical impedance analysis in children below 7 years old

    Directory of Open Access Journals (Sweden)

    Jiyoung Jung

    2010-03-01

    Full Text Available Purpose : Body composition is important to define and manage obesity and undernutrition. Obesity is a significant health problem with medical and psychological consequences for children and adolescents. Body composition analysis (BIA is a simple, rapid, noninvasive, and reproducible technique. However, comparative analysis of body composition has not been done in young children below 7 years old. The aim of this study is to estimate antropometric data and body composition by BIA, and to investigate the correlation between anthropometric data and fat mass or fat percent in young children. Methods : We measured height, weight, body mass index (BMI, fat mass, and fat percent by BIA in 1,376 children aged 3&#8211;6 years of whom 688 were males and 688 were females. Results : Fat mass, fat percent, intracellular fluid, extracellular fluid, protein, and minerals were significantly higher in the obese group. A significant positive correlation exists between fat mass and BMI or weight. A significant positive linear correlation was also noted between fat percent and BMI. Protein, weight, fat mass, and fat percent were significantly different among groups. Conclusion : BIA is an objective, accurate method to estimate body fat in childhood obesity cases. Fat mass and fat percent data acquired by using BIA highly correlated with BMI. However, a large-scale study is needed to diagnose obesity in young children.

  18. Role of the phloem in the biochemistry and ecophysiology of benzylisoquinoline alkaloid metabolism.

    Science.gov (United States)

    Lee, Eun-Jeong; Hagel, Jillian M; Facchini, Peter J

    2013-01-01

    Benzylisoquinoline alkaloids (BIAs) are a diverse group of biologically active specialized metabolites produced mainly in four plant families. BIA metabolism is likely of monophyletic origin and involves multiple enzymes yielding structurally diverse compounds. Several BIAs possess defensive properties against pathogenic microorganisms and herbivores. Opium poppy (Papaver somniferum: Papaveraceae) has emerged as a model system to investigate the cellular localization of BIA biosynthesis. Although alkaloids accumulate in the laticifer cytoplasm (latex) of opium poppy, corresponding biosynthetic enzymes and gene transcripts are localized to proximal sieve elements and companion cells, respectively. In contrast, BIA metabolism in the non-laticiferous meadow rue (Thalictrum flavum; Ranunculaceae) occurs independent of the phloem. Evidence points toward the adoption of diverse strategies for the biosynthesis and accumulation of alkaloids as defensive compounds. Recruitment of cell types involved in BIA metabolism, both within and external to the phloem, was likely driven by selection pressures unique to different taxa. The biochemistry, cell biology, ecophysiology, and evolution of BIA metabolism are considered in this context. PMID:23781223

  19. Bioelectrical impedance analysis as a laboratory activity: At the interface of physics and the body

    Science.gov (United States)

    Mylott, Elliot; Kutschera, Ellynne; Widenhorn, Ralf

    2014-05-01

    We present a novel laboratory activity on RC circuits aimed at introductory physics students in life-science majors. The activity teaches principles of RC circuits by connecting ac-circuit concepts to bioelectrical impedance analysis (BIA) using a custom-designed educational BIA device. The activity shows how a BIA device works and how current, voltage, and impedance measurements relate to bioelectrical characteristics of the human body. From this, useful observations can be made including body water, fat-free mass, and body fat percentage. The laboratory is engaging to pre-health and life-science students, as well as engineering students who are given the opportunity to observe electrical components and construction of a commonly used biomedical device. Electrical concepts investigated include alternating current, electrical potential, resistance, capacitance, impedance, frequency, phase shift, device design, and the use of such topics in biomedical analysis.

  20. Ichthyometry and electrical bioimpedance analysis to estimate the body composition of tambatinga / Ictiometria e bioimpedância elétrica para estimativa da composição corporal do tambatinga

    Scientific Electronic Library Online (English)

    Francisco Teixeira, Andrade; Márvio Lobão Teixeira de, Abreu; João Batista, Lopes; Agustinho Valente de, Figueiredo; Maria de Nazaré Bona Alencar, Araripe; Antônio Hosmylton Carvalho, Ferreira.

    2014-06-01

    Full Text Available Analisar composição corporal é relevante para caracterizar necessidades nutricionais e fase de terminação de peixes. Objetivou-se estudar a relação entre variáveis ictiométricas (peso, comprimentos total e padrão, densidade e rendimentos), bromatológicas (gordura, proteína, cinza e umidade) e aquela [...] s da análise por bioimpedância ou BIA (resistência, reatância, ângulo de fase e índices de composição), no híbrido tambatinga (Colossoma macropomum x Piaractus brachypomus). Em um viveiro não fertilizado, 520 juvenis foram cultivados com ração comercial. Com idade de 136 dias após a eclosão dos ovos, 37,69 g de peso, 12,96 cm de comprimento total, 15 peixes, colhidos ao acaso, foram anestesiados (eugenol) e submetidos à primeira de quatorze avaliações quinzenais (BIA e biometria). Após eutanásia foram dissecados e pesados: carcaça inteira com cabeça, filé e pele (CICFP), filé com pele (FCP) e resto da carcaça com cabeça (CCC). Juntos, FCP e CCC foram moídos e homogeneizados para análise bromatológica. Estimativas da composição corporal e de rendimentos do tambatinga, com modelos incluindo variáveis ictiométricas e da BIA, apresentaram coeficientes de correlação entre 0,81 (para o rendimento do FCP) e 1,00 (para cinzas totais). Analogamente, modelos com a inclusão apenas de variáveis da BIA mostram coeficientes de correlação entre 0,81 (rendimento do FCP e do CCC) e 0,98 (para cinzas totais). Portanto, no tambatinga, a técnica da BIA possibilita a estimativa do rendimento de filé com pele e composição corporal (umidade, gordura, cinza e proteína). Os melhores modelos agregam variáveis ictiométricas e da BIA. Abstract in english Body composition analysis is relevant to characterize the nutritional requirements and finishing phase of fish. The aim of this study was to investigate the relationship between ichthyometric (weight, total and standard length, density and yields), bromatological (fat, protein, ash and water content [...] ) and bioelectrical-impedance-analysis (BIA) (resistance, reactance, phase angle and composition indexes) variables in the hybrid tambatinga (Colossoma macropomum × Piaractus brachypomus). In a non-fertilized vivarium, 520 juveniles were housed and fed commercial rations. Then, 136 days after hatching (DAH), 15 fish with an average weight of 37.69 g and average total length of 12.96 cm were randomly chosen, anesthetized (eugenol) and subjected to the first of fourteen fortnightly assessments (BIA and biometry). After euthanasia, the following parts were weighed: whole carcass with the head, fillet, and skin (WC); fillet with skin (FS); and the remainder of the carcass with the head (CH). Together, FS and CH were ground and homogenized for the bromatological analyses. Estimates of the body composition and yields of tambatinga, with models including ichthyometric and BIA variables, showed correlation coefficients ranging from 0.81 (for the FS yield) to 1,00 (for the total ash). Similarly, models that included only BIA variables had correlation coefficients ranging from 0.81 (FS and CH yields) to 0.98 (for the total ash). Therefore, in tambatinga, the BIA technique allows the estimation of the yield of the fillet with skin and the body composition (water content, fat, ash, and protein). The best models combine ichthyometric and BIA variables.

  1. Estimativa da gordura corporal através de equipamentos de bioimpedância, dobras cutâneas e pesagem hidrostática Comparison of body fat estimation by bioelectric impedance, skinfold thickness, and underwater weighing

    Directory of Open Access Journals (Sweden)

    Maurício Nunes Rodrigues

    2001-08-01

    Full Text Available A estimativa do percentual de gordura (%G pela bioimpedância (BIA tem como vantagem a simplicidade da medida. Contudo, a confiabilidade da BIA tem sofrido críticas. O objetivo deste estudo foi comparar a estimativa do %G através das técnicas de bioimpedância (RJL-101; Byodinamics A-310, Maltron BF-900 e BF-906, de dobras cutâneas (DC e da pesagem hidrostática (PH. Observaram-se 25 indivíduos, homogeneizados segundo raça (branca, gênero (masculino e idade (18 a 36 anos. Para a medida de BIA foi utilizada a padronização proposta por Lukaski et al. (1985, 1986. Para as DC foram utilizadas as equações de å 3 DC e å 7 DC (Jackson, Pollock, 1978. Os valores de %G e de volume residual para PH foram preditos, respectivamente, pelas equações de Siri (1961 e Goldman e Becklake (1959. A análise estatística compreendeu: a comparação entre os métodos através da ANOVA com medidas repetidas seguida de testes post-hoc de Tukey; b correlação de Pearson (r; e c cálculo do erro padrão de estimativa (SEE das técnicas em relação à PH. Os resultados indicaram que: a as medidas de BIA não diferiram significativamente, entre si, para o %G estimado; b As medidas dos aparelhos A-310 e BF-906 não coincidiram com a PH (p The main advantage of the bioelectric impedance method (BIA in the determination of body fat (%BF is the simplicity of the procedure. However, its accuracy and reliability have been criticized. The purpose of this study was to compare the %BF obtained by BIA (RJL-101; Biodynamics A-310, Maltron BF-900 e BF-906, by skinfold thickness (ST, and by underwater weighing (UW. Twenty-five subjects, divided in homogenous groups according to age (18 to 36 years, sex (men, and race (white participated in the study. BIA measures were taken using the Lukaski et al. standardization (1985,1986. ST was taken by using the equation of 3 and 7 skinfolds (Jackson, Pollock, 1978. The values of %BF and residual volume for the UW were estimated by the Siri (1961 and Goldman and Becklake (1959 equations. Statistical analysis was calculated by: a repeated measures ANOVA followed by the Tukey post-hoc test; b Pearson (r correlation; c standard error of estimate (SEE of the BIA and ST compared to UW. The results indicated that: a there were no significant differences for %BF measures obtained by the BIA devices; b the %BF obtained by the A-310 and BF-906 devices did not match with the UW measures (p < 0.01; c SEE was high for all devices, except for the RJL-101; d the correlation coefficients were low to moderate for all devices, the BF-906 showing the higher values; e The ST showed greater values of r and fewer SEE than the BIA. In conclusion, the findings do not allow to state that a BIA device is better than the others to assess %BF, but the ST seems to be more powerful and reliable than the BIA for %BF estimation. Notwithstanding, the results should be confirmed by more sophisticated experimental designs, with a closer control of sampling bias for type I and II errors.

  2. Reliability of non-lethal assessment methods of body composition and energetic status exemplified by applications to eel (Anguilla anguilla) and carp (Cyprinus carpio)

    DEFF Research Database (Denmark)

    Klefoth, Thomas; Skov, Christian

    2013-01-01

    tNon-lethal assessments of proximate body composition of fish can help unravelling the physiologicaland condition-dependent mechanisms of individual responses to ecological challenges. Common non-lethal methods designed to index nutrient composition in fish include the relative condition factor (Kn),bioelectric impedance-based assessments of body composition (BIA), and microwave-based “fat” meters(FM). Previous studies have revealed mixed findings as to the reliability of each of these. We compared theperformance of Kn, BIA and FM at different temperatures to predict energetic status of the whole bodiesof live eel (Anguilla anguilla) and carp (Cyprinus carpio) and the dorsal white muscle of carp. Homogenizedfish flesh was used for calibration. Relative dry mass was strongly correlated with relative fat content(R2up to 96.7%) and energy density (R2up to 99.1%). Thus, calibrations were only conducted for relativedry mass as an index of energetic status of a fish. FM readings were found to predict relative dry mass ofwhole body in eel (R2= 0.707) and carp (R2= 0.676), and dorsal white muscle of carp (R2= 0.814) well. Bycontrast, BIA measurements and Knwere much less suited to identify variation in relative dry mass. BIA-based models were also temperature-dependent. As a result, a regression model calibrated at 10?C andapplied to BIA measurements at 20?C was found to underestimate energetic status of a fish. By contrast,no effects of temperature on FM calibration results were found. Based on our study, the FM approach isthe most suitable method to non-lethally estimate energetic status in both, carp and eel, whereas BIA is oflimited use for energetic measurements in the same species, in contrast to other reports in the literature

  3. Different body fluid volumes measured by singleand multi-frequency bioelectrical impedance analyzers in overweight/obese renal patients.

    Science.gov (United States)

    Kusztal, Mariusz; Dzier?ek, Przemys?aw; Go??biowski, Tomasz; Weyde, Wac?aw; Klinger, Marian

    2015-01-01

    Bioelectrical impedance analysis (BIA) is an affordable, non-invasive and fast alternative method to assess body composition. The purpose of this study was to compare two different tetrapolar BIA devices for estimating body fluid volumes and body cell mass (BCM) in a clinical setting among patients with kidney failure. All double measurements were performed by multi-frequency (MF) and single-frequency (SF) BIA analyzers: a Body Composition Monitor (Fresenius Medical Care, Germany) and BIA-101 (Akern, Italy), respectively. All procedures were conducted according to the manufacturers' instructions (dedicated electrodes, measurement sites, positions, etc). Total body water (TBW), extracellular water (ECW), intracellular water (ICW) and BCM were compared. The study included 39 chronic kidney disease patients (stage III-V) with a mean age of 45.8 ± 8 years (21 men and 18 women) who had a wide range of BMI [17-34 kg/m2 (mean 26.6 ±5)]. A comparison of results from patients with BMI <25 vs ?25 revealed a significant discrepancy in measurements between the two BIA devices. Namely, in the group with BMI <25 (n=16) acceptable correlations were obtained in TBW (r 0.99; p<0.01), ICW (0.92; p<0.01), BCM (0.68; p<0.01), and ECW (0.96 p<0.05), but those with BMI ?25 (n=23) showed a discrepancy (lower correlations) in TBW (r 0.82; p<0.05), ICW (0.78; p<0.05), BCM (0.52; p<0.05), and ECW (0.76; p<0.01). Since estimates of TBW, ICW and BCM by the present BIA devices do not differ in patients with BMI <25, they might be interchangeable. This does not hold true for overweight/obese renal patients. PMID:25983301

  4. Microcystin assimilation and detoxification by Daphnia spp. in two ecosystems of different cyanotoxin concentrations

    Directory of Open Access Journals (Sweden)

    Marzena Wielanek

    2013-02-01

    Full Text Available Microcystins (MCs, the main group of cyanotoxins, can induce oxidative stress in the cells of aquatic animals. This study evaluated the sensitivity of daphniids – from two ecosystems characterised by different trophic states and habitat levels of cyanobacteria abundance – to microcystin toxicity by analysing oxidative stress parameters and MC detoxification ability. As a study site, we chose the eutrophic Sulejow reservoir, which has regular annual toxic cyanobacterial blooms, and the mesotrophic lake Bia?e, where low abundances of cyanobacteria have only recently appeared. We found much higher accumulations of MCs in tissues of Daphnia spp. in lake Bia?e, despite low toxin concentrations in this ecosystem compared with the Sulejow reservoir. Simultaneously, high levels of lipid peroxidation (LPO and a significant decrease in glutathione (GSH were observed in daphniid cells in lake Bia?e, while LPO levels were generally lower and GSH concentration more stable in the Sulejow reservoir. Catalase activity, which reflects more efficient oxidative protection, was always significantly higher in the reservoir than in lake Bia?e. These results demonstrate that generations of daphniids from the Sulejow reservoir had more effective antioxidant systems protecting them against the accumulation of cyanobacterial toxins; thereby, they are less susceptible to toxic effects than the daphniids from lake Bia?e. However, the presence of conjugate forms of microcystins (MC-GSH and MC-Cys in tissues of the studied animals indicated the ability for MC detoxification by daphniids from the Sulejow reservoir and lake Bia?e. Nevertheless, the high effectiveness of antioxidant systems in daphniids coexisting with cyanobacteria for a long time in the Sulejow reservoir indicates the importance of a selective pressure exerted by toxic cyanobacterial strains that favours the most resistant daphniid genotypes.

  5. [Probing the dry weight in hemodialysis: is bioimpedance the solution?].

    Science.gov (United States)

    Basile, Carlo

    2015-01-01

    Probing the dry weight (DW) was largely dependent on clinical subjective estimate until recently. New bedside non-invasive tools have been developed with the aim of providing more objective information on volume status and guiding physicians in the quest for DW. Among them, bioimpedance (BIA) appears to be very promising in the achievement of this goal. Resistance (R) and capacitance of tissue are the two basic properties in BIA. However, although impedance is an electrical property of tissues that can be directly used in body composition analysis, it is commonly embedded in predictive equations that are derived by correlation with criterion measures of body compartments. In recent studies continuous regional calf multifrequency BIA spectroscopy and wrist-to-ankle whole-body single-frequency BIA were used during dialysis sessions to assess DW. The latter was defined as the weight achieved after flattening of the R0/Rt slope (R0 is R at time 0 and Rt is R at at a given time t during the HD session) for a period of at least 20 minutes despite ongoing ultrafiltration, indicating no further decline in extracellular volume. Two are the main advantages of these methods: they use directly R, with no need for predictive equations; they do not depend on comparison with healthy subjects but mainly use patients as their own control to define DW as stabilization of the R0/Rt slope. In conclusion, clinical methods are fundamental in probing the DW. They must be supported by strict BIA protocols. BIA appears to be a (the) brilliant solution in solving the old problem of DW in hemodialysis patients. PMID:25774591

  6. In?ynierowany jedwab paj?czy: inteligentny biomateria? przysz?o?ci. Cz??? I

    Directory of Open Access Journals (Sweden)

    Anna Florczak

    2011-06-01

    Full Text Available Unikalne w?a?ciwo?ci nici paj?czej, takie jak wytrzyma?o??, rozci?gliwo??, energia p?kania (wi?zko??, biokompatybilno?? oraz biodegradowalno?? spowodowa?y intensywny rozwój technologii biomateria?ów opartych na bia?kach jedwabiu paj?czego. Post?p bada? naukowych by? hamowany przez d?ugi czas brakiem metod pozyskiwania odpowiedniej ilo?ci materia?u. Prze?omem technologicznym by?o opracowanie strategii biologii molekularnej, które doprowadzi?o do stworzenia warunków do produkcji in?ynierowanych paj?czych bia?ek jedwabiu (IPJ. Strategia ta polega na konstruowaniu sztucznych bia?ek jedwabiu, których sekwencje oparte s? na motywach konsensusowych bia?ek naturalnych. Ponadto bia?ka in?ynierowane genetycznie, mo?na skonstruowa? tak, aby nada? im „nowe” funkcje. Strategia bia?ek hybrydowych zak?ada, i? IPJ s? rdzeniem, no?nikiem, nadaj?cym struktur?, do którego mo?na do??czy? (na poziomie DNA sekwencj? nadaj?c? funkcj? np. rozpoznaj?c? receptory komórkowe, enzymy, wi???c? metale, cukry i inne. Obecnie prowadzone s? intensywne badania, które z jednej strony skupiaj? si? na ustaleniu szczegó?owej budowy i zrozumieniu procesu tworzenia si? jedwabnej nici w naturze, a z drugiej strony próbuje si? udoskonali? metody produkcji IPJ. Dzi?ki zdobytej wiedzy i rozwojowi powy?szej technologii in?ynierowany jedwab stanie si? „inteligentnym” biomateria?em przysz?o?ci, a otrzymywany na skal? przemys?ow? wywo?a rewolucj? biotechnologiczn?.

  7. Percent Body Fat Measured by Bioelectrical Impedance is not Associated with Colorectal Adenoma Status

    Directory of Open Access Journals (Sweden)

    David J Frantz

    2013-03-01

    Full Text Available AIM: Obesity is a risk factor for colorectal neoplasia. Bioelectricalimpedance analysis (BIA is a novel and convenient method tomeasure body fat mass. The correlation between BIA and adenomarisk is unknown. We aimed to conduct a cross-sectional study toevaluate BIA and other measures of obesity as risk factors foradenomas.METHODS: Participants underwent screening colonoscopybetween 2006 and 2008. Waist-hip ratio (WHR and body massindex (BMI were measured. Percent body fat was calculated by BIAusing a proprietary scale. Physical activity and other risk factors wereassessed by telephone interview.RESULTS: 255 patients with adenomas and 679 non-adenomacontrols were included. Increased age, male sex, and decreasedphysical activity were associated with adenoma prevalence. Inmultivariate analysis, WHR and BMI were independently associatedwith adenoma prevalence. Patients in the highest tertile of WHR hadan OR of 2.0 (95% CI 1.2-3.2 compared to the lowest tertile. Obesewhite patients had significantly increased odds of having adenomas[OR 2.0 (95% CI 1.3, 3.2] compared to whites with a normal BMI.Percent body fat measured by BIA was not associated with adenomastatus: patients in the highest tertile of percent body fat had an OR of1.0 (95% CI 0.7-1.6 compared to patients with the lowest tertile.CONCLUSIONS: Percent body fat calculated by BIA was notassociated with adenoma prevalence. Although BIA is a quick andconvenient measure of adiposity, it is not predictive of adenomarisk perhaps because it measures the amount of fat but not thedistribution.

  8. Benzylisoquinoline alkaloid metabolism: a century of discovery and a brave new world.

    Science.gov (United States)

    Hagel, Jillian M; Facchini, Peter J

    2013-05-01

    Benzylisoquinoline alkaloids (BIAs) are a structurally diverse group of plant specialized metabolites with a long history of investigation. Although the ecophysiological functions of most BIAs are unknown, the medicinal properties of many compounds have been exploited for centuries. These include the narcotic analgesics codeine and morphine, the antimicrobial agents sanguinarine and berberine, and the antitussive and anticancer drug noscapine. BIA biosynthesis involves a restricted number of enzyme types that catalyze landmark coupling reactions and subsequent functional group modifications. A pathogenesis-related (PR)10/Bet v1 'Pictet-Spenglerase', several O-methyl-, N-methyl- and O-acetyltransferases, cytochromes P450, FAD-dependent oxidases, non-heme dioxygenases and NADPH-dependent reductases have been implicated in the multistep pathways leading to structurally diverse alkaloids. A small number of plant species, including opium poppy (Papaver somniferum) and other members of the Ranunculales, have emerged as model systems to study BIA metabolism. The expansion of resources to include a wider range of plant species is creating an opportunity to investigate previously uncharacterized BIA pathways. Contemporary knowledge of BIA metabolism reflects over a century of research coupled with the development of key innovations such as radioactive tracing, enzyme isolation and molecular cloning, and functional genomics approaches such as virus-induced gene silencing. Recently, the emergence of transcriptomics, proteomics and metabolomics has expedited the discovery of new BIA biosynthetic genes. The growing repository of BIA biosynthetic genes is providing the parts required to apply emerging synthetic biology platforms to the development of production systems in microbes as an alternative to plants as a commecial source of valuable BIAs. PMID:23385146

  9. Total body water and fat-free mass: evaluation of equations based on bioelectrical impedance analysis in infants and young children in India.

    Science.gov (United States)

    Sen, Bandana; Mahalanabis, Dilip; Kurpad, Anura V; Shaikh, Saijuddin; Bose, Kaushik

    2010-07-01

    The association of early postnatal growth with diseases in adults such as hypertension, type 2 diabetes and CHD has generated interest in studying postnatal growth. Bioelectrical impedance analysis (BIA) is a useful measure to estimate total body water (TBW) and fat-free mass (FFM). We evaluated three published equations (Fjeld et al. (Pediatr Res (1990) 27, 98-102), Bocage (MSc Thesis (1988) University of West Indies) and Kushner et al. (Am J Clin Nutr (1992) 56, 835-839) to measure TBW and derived FFM based on BIA, using 2H2O dilution as a reference method for suitability in infants in India. In a cross-sectional study in seventy-eight apparently healthy infants aged 6-24 months from the urban poor attending an immunisation clinic at a hospital in Kolkata, we measured their length to the nearest 0.1 cm, weight to the nearest 10 g, resistance at 50 kHz using BIA and TBW using 2H2O dilution. TBW was derived using three published BIA-based equations and compared with TBW using 2H2O dilution. Based on the BIA equations of Fjeld et al., Bocage and Kushner et al., the mean TBW values were 2.46 % (P < 0.001), 4.62 % (P < 0.001) and 9.50 % (P < 0.001) lower than the reference 2H2O method, respectively. All three published BIA-based equations consistently underestimated the TBW and FFM and appeared inadequate for studying infants in India. The equation described by Fjeld et al. gave the smallest deviation from the reference method and may be used for field studies. New equations based on population-specific data are desirable for a more precise measure of TBW. PMID:20188001

  10. m-[125I]iodoaniline: a useful reagent for radiolabeling biotin

    International Nuclear Information System (INIS)

    Biotinyl-m-[125I]iodoanilide (BIA) was synthesized by coupling biotin to m-[125I]iodoaniline via a mixed anhydride reaction. m-[125I]Iodoaniline was produced from the tin precursor, which was prepared using a palladium catalyzed reaction of hexabutylditin with m-bromoaniline. The radioiodinated BIA derivative is characterized by a stable amide and/or intact ureido group on the biotin molecule, it may thus be a useful carrier for targeting radionuclides to avidin-conjugated antibodies previously localized on tumors. (author)

  11. Comparison of body composition methods in overweight and obese Brazilian women Comparação de métodos da composição corporal em mulheres brasileiras com sobrepeso e obesidade

    Directory of Open Access Journals (Sweden)

    Valeria Bender Braulio

    2010-06-01

    Full Text Available OBJECTIVE: The purpose of this study was to compare skinfold thickness (SKF and bioelectrical impedance analysis (BIA of body composition using three different equations against dual-energy X-ray absorptiometry (DXA in overweight and obese Brazilian women. SUBJECTS AND METHOD: Thirty-four women (age 43.8 ± 10.9 years; body mass index [BMI] 32.1 ± 4.3 kg/m² had percentage body fat (BF%, fat mass (FM and fat-free mass (FFM estimated by DXA, SKF and BIA (BIA-man: manufacturer's equation; and predictive obesity-specific equations of Segal and of Gray. Regression analysis, Bland-Altman plot analysis and intra-class correlation coefficient (ICC were used to compare methods. RESULTS: Absolute agreement between DXA and BIA-man was poor for all measures of body composition (BF% -6.8% ± 3.7%, FM -3.1 ± 3.6 kg, FFM 5.7 ± 2.8 kg. BIA-Segal equation showed good absolute agreement with DXA for BF% (1.5% ± 1.5%, FM (1.0 ± 3.2 kg and FFM (1.5 ± 2.6 kg, albeit the limits of agreement were wide. BIA-Gray equation showed good absolute agreement with DXA for FM (2.3 ± 4.1 kg, and smaller biases for BF% (0.05% ± 4.4% and FFM (0.2 ± 2.9 kg, although wide limits of agreement. BIA-Gray and DXA showed the highest ICC among the pairs of methods. A good absolute agreement was observed between DXA and SKF for BF% (-2.3% ± 5.8%, FM (0.09 ± 4.7 kg, and FFM (2.4 ± 4.4 kg, although limits of agreement were wider and ICC between DXA and SKF for BF% indicated poor degree of reproducibility. CONCLUSION: These findings show that both BIA-Segal and BIA-Gray equations are suitable for BF%, FM and FFM estimations in overweight and obese women.OBJETIVO: Verificar a concordância dos métodos de impedância bioelétrica (BIA usando três equações diferentes, e medida das pregas cutâneas (PC com absorciometria de raios-X de dupla energia (DEXA, para análise da composição corporal de mulheres com sobrepeso e obesidade. SUJEITOS E MÉTODOS: Em 34 mulheres (43,8 ± 10.9 anos; índice de massa corporal [IMC] 32,1 ± 4,3 kg/m² foram avaliados: percentual de gordura total (%GT, massa gorda (MG e massa magra (MM por DEXA, PC, BIA-Fab (equação do fabricante, BIA-Segal e BIA-Gray (equações para obesidade. Foram utilizados: análise de regressão, método de Bland-Altman e coeficiente de correlação intraclasse (CCI. RESULTADOS: A concordância absoluta entre DEXA e BIA-Fab foi fraca para todas as medidas (BF% -6,8% ± 3,7%, FM -3,1 ± 3,6 kg, FFM 5,7 ± 2,8 kg. BIA-Segal apresentou boa concordância absoluta com DEXA para %GT (1,5% ± 1,5%, MG (1,0 ± 3,2 kg e MM (1,5 ± 2,6 kg, mas com amplos limites de concordância. BIA-Gray teve boa concordância absoluta com DEXA para MG (2,3 ± 4,1 kg e pequenos vieses para %GT (0,05% ± 4,4% e MM (0,2 ± 2,9 kg, mas com amplos limites de concordância. BIA-Gray e DEXA tiveram maior CCI entre métodos. Houve boa concordância absoluta entre DEXA e PC para %GT (-2,3% ± 5,8%, MG (0,09 ± 4,7 kg e MM (2,4 ± 4,4 kg, mas com amplos limites de concordância e pouca reprodutibilidade no CCI, entre DEXA e PC para %GT. CONCLUSÃO: A BIA, utilizando equação específica para obesidade, foi o método que melhor concordou com DEXA, para estimar %GT, MG e MM em mulheres com sobrepeso e obesidade.

  12. Capacidade preditiva de diferentes equipamentos de bioimpedância elétrica, com e sem preparo prévio, na avaliação de adolescentes / Predictive capacity of different bioelectrical impedance analysis devices, with and without protocol, in evaluation of adolescents

    Scientific Electronic Library Online (English)

    Vivian Siqueira Santos, Gonçalves; Eliane Rodrigues de, Faria; Sylvia do Carmo Castro, Franceschini; Silvia Eloiza, Priore.

    2013-12-01

    Full Text Available OBJETIVO: determinar a capacidade preditiva de quatro equipamentos distintos de bioimpedância elétrica (BIA) na avaliação de adolescentes, com e sem a realização de protocolo. MÉTODOS: estudo transversal realizado com 215 adolescentes de 10 a 14 anos, de ambos os sexos, avaliados através da antropom [...] etria e da composição corporal pelo DEXA e por quatro equipamentos distintos de BIA, com e sem protocolo. Foram utilizados os testes estatísticos: Kolmogorov-Smirnov, do Qui-quadrado, t-Student ou Mann-Whitney, Kruskal-Wallis, Wilcoxon e Índice Kappa. Foram construídas curvas ROC e calculados os valores de sensibilidade, especificidade e preditivos positivo e negativo. RESULTADOS: dos adolescentes, 44,2% apresentaram excesso de gordura corporal. A BIA tetrapolar, equipada com oito eletrodos táteis, demonstrou-se mais sensível e com resultados mais próximos ao DEXA (AUC = 0,964 com protocolo e AUC = 0,973 sem protocolo, p 0,05). CONCLUSÃO: a BIA é um instrumento capaz de predizer distrofias relacionadas à gordura corporal de adolescentes. Na impossibilidade de realização do protocolo, seus resultados podem ser úteis em estudos populacionais. Abstract in english OBJECTIVE: this study was performed to determine the predictive capacity of four different bioelectrical impedance analysis (BIA) devices in the assessment of adolescents, with and without a protocol. METHODS: a cross-sectional study was performed with 215 adolescents aged 10 to 14 years, of both ge [...] nders, evaluated through anthropometry and body composition by dual energy X-ray absorptiometry (DXA) and by four different BIA devices, with and without a protocol. The following tests were used: Kolmogorov-Smirnov's, chi-squared, Student's t or Mann-Whitney's, Kruskal-Wallis's, Wilcoxon's, and kappa index. The ROC curves were constructed and the sensitivity, specificity, and positive and negative predictive values were calculated. RESULTS: of the 215 adolescents, 44.2% had excessive body fat. The tetrapolar BIA device equipped with eight tactile electrodes showed more sensitivity and results that were closer to those obtained by DXA (area under the ROC curve [AUC] = 0.964 with protocol and AUC = 0.973 without protocol, p 0.05). CONCLUSION: BIA is capable of predicting alterations in adolescents' body composition. When it is impossible to perform the assessment with a protocol, its results may be useful in population studies.

  13. Comparison of body composition methods in overweight and obese Brazilian women / Comparação de métodos da composição corporal em mulheres brasileiras com sobrepeso e obesidade

    Scientific Electronic Library Online (English)

    Valeria Bender, Braulio; Valéria Cristina Soares, Furtado; Maria das Graças, Silveira; Maria Helena, Fonseca; José Egídio, Oliveira.

    2010-06-01

    Full Text Available OBJETIVO: Verificar a concordância dos métodos de impedância bioelétrica (BIA) usando três equações diferentes, e medida das pregas cutâneas (PC) com absorciometria de raios-X de dupla energia (DEXA), para análise da composição corporal de mulheres com sobrepeso e obesidade. SUJEITOS E MÉTODOS: Em 3 [...] 4 mulheres (43,8 ± 10.9 anos; índice de massa corporal [IMC] 32,1 ± 4,3 kg/m²) foram avaliados: percentual de gordura total (%GT), massa gorda (MG) e massa magra (MM) por DEXA, PC, BIA-Fab (equação do fabricante), BIA-Segal e BIA-Gray (equações para obesidade). Foram utilizados: análise de regressão, método de Bland-Altman e coeficiente de correlação intraclasse (CCI). RESULTADOS: A concordância absoluta entre DEXA e BIA-Fab foi fraca para todas as medidas (BF% -6,8% ± 3,7%, FM -3,1 ± 3,6 kg, FFM 5,7 ± 2,8 kg). BIA-Segal apresentou boa concordância absoluta com DEXA para %GT (1,5% ± 1,5%), MG (1,0 ± 3,2 kg) e MM (1,5 ± 2,6 kg), mas com amplos limites de concordância. BIA-Gray teve boa concordância absoluta com DEXA para MG (2,3 ± 4,1 kg) e pequenos vieses para %GT (0,05% ± 4,4%) e MM (0,2 ± 2,9 kg), mas com amplos limites de concordância. BIA-Gray e DEXA tiveram maior CCI entre métodos. Houve boa concordância absoluta entre DEXA e PC para %GT (-2,3% ± 5,8%), MG (0,09 ± 4,7 kg) e MM (2,4 ± 4,4 kg), mas com amplos limites de concordância e pouca reprodutibilidade no CCI, entre DEXA e PC para %GT. CONCLUSÃO: A BIA, utilizando equação específica para obesidade, foi o método que melhor concordou com DEXA, para estimar %GT, MG e MM em mulheres com sobrepeso e obesidade. Abstract in english OBJECTIVE: The purpose of this study was to compare skinfold thickness (SKF) and bioelectrical impedance analysis (BIA) of body composition using three different equations against dual-energy X-ray absorptiometry (DXA) in overweight and obese Brazilian women. SUBJECTS AND METHOD: Thirty-four women ( [...] age 43.8 ± 10.9 years; body mass index [BMI] 32.1 ± 4.3 kg/m²) had percentage body fat (BF%), fat mass (FM) and fat-free mass (FFM) estimated by DXA, SKF and BIA (BIA-man: manufacturer's equation; and predictive obesity-specific equations of Segal and of Gray). Regression analysis, Bland-Altman plot analysis and intra-class correlation coefficient (ICC) were used to compare methods. RESULTS: Absolute agreement between DXA and BIA-man was poor for all measures of body composition (BF% -6.8% ± 3.7%, FM -3.1 ± 3.6 kg, FFM 5.7 ± 2.8 kg). BIA-Segal equation showed good absolute agreement with DXA for BF% (1.5% ± 1.5%), FM (1.0 ± 3.2 kg) and FFM (1.5 ± 2.6 kg), albeit the limits of agreement were wide. BIA-Gray equation showed good absolute agreement with DXA for FM (2.3 ± 4.1 kg), and smaller biases for BF% (0.05% ± 4.4%) and FFM (0.2 ± 2.9 kg), although wide limits of agreement. BIA-Gray and DXA showed the highest ICC among the pairs of methods. A good absolute agreement was observed between DXA and SKF for BF% (-2.3% ± 5.8%), FM (0.09 ± 4.7 kg), and FFM (2.4 ± 4.4 kg), although limits of agreement were wider and ICC between DXA and SKF for BF% indicated poor degree of reproducibility. CONCLUSION: These findings show that both BIA-Segal and BIA-Gray equations are suitable for BF%, FM and FFM estimations in overweight and obese women.

  14. Estimativa da massa muscular esquelética em mulheres idosas: validade da impedância bioelétrica Validity of bioelectrical impedance analysis for the estimation of skeletal muscle mass in elderly women

    Directory of Open Access Journals (Sweden)

    Cassiano Ricardo Rech

    2010-04-01

    Full Text Available O presente estudo tem como objetivos: a verificar a concordância entre os métodos da impedância bioelétrica (BIA e da absortometria radiológica de dupla energia (DXA para a estimativa da massa muscular esquelética (MME; e b analisar o poder preditivo de variáveis antropométricas e da BIA para a predição da MME em idosas. Foram avaliadas 120 mulheres (60 a 81 anos, residentes na região Sul do Brasil. Mensuraram-se as variáveis antropométricas (massa corporal e estatura; a resistência e hidratação dos tecidos livres de gordura foram medidas pela técnica da BIA tetrapolar (Biodinamics - BF-310, e pela DXA de corpo inteiro (Lunar Prodigy DF + 14319 Radiation e software 7.52.002 DPX-L. A diferença entre os métodos foi verificada pelo teste t pareado, análise dos resíduos e o coeficiente de correlação. O valor preditivo das variáveis antropométricas e de BIA foi verificado pela regressão linear múltipla, adotando nível de significância de p 0,01. Observou-se que a BIA subestimou em média 0,8kg (IC95%: -3,7; 2,0kg a MME, quando comparada com a DXA. Foi observada alta correlação entre os métodos (r² = 0,75; p The objectives of the present study were: a to determine the agreement between bioelectrical impedance analysis (BIA and dual-energy X-ray absorptiometry (DXA for the estimation of skeletal muscle mass (SMM, and b to analyze the predictive power of anthropometric variables and BIA for the prediction of SMM in elderly women. A total of 120 women (60 to 81 years, living in the southern region of Brazil, were studied. Anthropometric variables (body weight and height were measured. Resistance and hydration of fat-free tissues were measured by tetrapolar BIA (Biodynamics, BF-310 and by whole-body DXA (Lunar Prodigy DF + 14319 Radiation and DPX-L software, version 7.52.002. Differences between methods were determined using the paired t-test, analysis of residuals and correlation coefficient. The predictive value of the anthropometric variables and BIA was evaluated by multiple linear regression, adopting a level of significance of p < 0.05. No significant difference in the estimation of SMM was observed between methods (p < 0.01. BIA underestimated SMM in mean of 0.8 kg (95%CI: -3.7; 2.0 kg when compared to DXA. Correlation between methods was high (r² = 0.75; p < 0.01. Regression analysis demonstrated that the ratio between the square of height and resistance (HEIGHT?/R explained 80% of the variation in SMM when adjusted to body weight and age, regardless of body fat, lean tissue hydration or body mass index. Thus, the BIA equation tested here is a valid tool for the estimation of SMM in elderly women and its value is best predicted by the regression model including HEIGHT²/R adjusted to body weight and age.

  15. State Responsibilities for American Indians -- Texas.

    Science.gov (United States)

    Diamond, Tom

    The Tiguas of El Paso, Texas; the Coushattas of Louisiana; and the Tortugas of Las Cruces, New Mexico share a common background in that they represent American Indian tribes who, having lost their land base, have been abandoned by the Bureau of Indian Affairs (BIA) and have experienced recent circumstances of poverty. Since Indian rights stem from…

  16. Comparação entre diferentes métodos para estimativa de gordura corporal de ciclistas brasileiros de elite / Comparison among different methods for the estimation of body fatness in brazilian elite cyclists

    Scientific Electronic Library Online (English)

    Eduardo Bernardo, Sangali; Eduardo Zapaterra, Campos; Robson Chacon, Castoldi; Rômulo Araújo, Fernandes; Ismael Forte, Freitas Júnior; Pedro, Balikian Junior.

    2012-09-01

    Full Text Available O objetivo do estudo foi comparar diferentes métodos de estimativa de gordura corporal em ciclistas de elite. A amostra foi composta por 15 atletas de alto nível, do sexo masculino, com idade média de 28,6 anos. Gordura corporal foi estimada pela equação para espessura de dobras cutâneas (EDC), anál [...] ise da bioimpedância elétrica (BIA) e absortometria de radiológica de dupla energia (DEXA) (utilizada como referência). O teste t pareado comparou as diferenças entre os métodos e o coeficiente de correlação intraclasse analisou o relacionamento entre os mesmos. Foi observado que os valores do percentual de gordura corporal estimado pela BIA (p= 0,029), mas não o estimado pela EDC (p= 0,094) diferiram das estimativas da DEXA. Dessa maneira, é possível concluir que EDC apresentou estimativas mais próximas daquelas fornecidas pelo DEXA. Abstract in english The present study aimed at comparing different methods to estimate the body fatness of elite athletes. The sample consisted of 15 male elite athletes with mean age of 28.6 years. The body fatness was estimated by the skinfold (EDC), bioelectric impedance analysis (BIA) and the dual-energy X-ray abso [...] rptiometry (DEXA) (reference). The paired t-tests compared the differences among methods, and the intraclass correlation coefficient analyzed the relationship among them. BIA (p= 0.029) overestimated the body fatness provided by DEXA, but EDC (p= 0.094) did not overestimate. Therefore, it is possible to conclude that EDC presented the body fatness similar to DEXA.

  17. Recent Electrochemical and Optical Sensors in Flow-Based Analysis

    OpenAIRE

    Nattakarn Wangfuengkanagul; Weena Siangproh; Alongkorn Yoosamran; Passapol Ngamukot; Orawon Chailapakul

    2006-01-01

    Some recent analytical sensors based on electrochemical and optical detection coupled with different flow techniques have been chosen in this overview. A brief description of fundamental concepts and applications of each flow technique, such as flow injection analysis (FIA), sequential injection analysis (SIA), all injection analysis (AIA), batch injection analysis (BIA), multicommutated FIA (MCFIA), multisyringe FIA (MSFIA), and multipumped FIA (MPFIA) were reviewed.

  18. Assessing Giftedness in Children: Comparing the Accuracy of Three Shortened Measures of Intelligence to the Stanford-Binet Intelligence Scales, Fifth Edition

    Science.gov (United States)

    Newton, Jocelyn H.; McIntosh, David E.; Dixon, Felicia; Williams, Tasha; Youman, Elizabeth

    2008-01-01

    This study examined the accuracy of three shortened measures of intelligence: the Woodcock-Johnson Tests of Cognitive Ability, Third Edition Brief Intellectual Ability (WJ III COG BIA) score; the Stanford-Binet Intelligence Scale, Fifth Edition Abbreviated IQ (SB5 ABIQ); and the Kaufman Brief Intelligence Test IQ Composite (K-BIT) in predicting…

  19. Notes on Pyrenomycetes and Coelomycetes from Poland l.

    OpenAIRE

    Andrzej Chlebicki

    1991-01-01

    Several coelomycete and pyrenomycete fungi from the Bia?owie?a National Park are presented in this paper. All with descriptions and illustrations: Myxocyclus polycistis, Diplodia carmentorum, Zythiostroma pinastri, Slilbospora maccrosperma. Phomatospora angemae, Diaporthe larseniana, Lasiosphaeria punctata, Coniochaeta malacotricha and Nitschkia parasitans. Five species are new to Poland.

  20. The Navajo and Hopi's History of Inequitable Mining Leases.

    Science.gov (United States)

    Barry, Tom

    1979-01-01

    The Council on Economic Priorities charged the BIA with violating its "moral obligations of highest responsibility and trust," because it approved coal leases with low royalty rates on the basis of weak environmental research. This article implies that tribes are more likely to receive equitable leases by negotiating directly with companies than…

  1. 25 CFR 166.215 - How can I find Indian land available for grazing?

    Science.gov (United States)

    2010-04-01

    ...How can I find Indian land available for grazing? 166.215 Section 166.215 Indians...DEPARTMENT OF THE INTERIOR LAND AND WATER GRAZING PERMITS Permit Requirements Obtaining...How can I find Indian land available for grazing? You may contact a local BIA...

  2. 75 FR 47591 - Environmental Impacts Statements; Notice Of Availability

    Science.gov (United States)

    2010-08-06

    ...Ends: 09/07/2010, Contact: John Rydzik 916-978-6051. EIS No. 20100302, Final EIS, BIA, CA, North Fork Rancheria of Mono Indians Fee-to-Trust and Casino/Hotel Project, Proposed 305-Acres-Fee- to-Trust Land...

  3. Study and classification of the abdominal adiposity throughout the application of the two-dimensional predictive equation Garaulet et al., in the clinical practice / Estudio y clasificación de la adiposidad abdominal mediante la aplicación de la ecuación predictiva bidimensional de Garaulet et al., en la práctica clínica

    Scientific Electronic Library Online (English)

    C. M.ª, Piernas Sánchez; E. M.ª, Morales Falo; S., Zamora Navarro; M., Garaulet Aza.

    2010-04-01

    Full Text Available Introducción: El exceso de tejido adiposo abdominal visceral es una de las mayores preocupaciones en la obesidad y su tratamiento clínico. Objetivo: Aplicar la ecuación predictiva bidimensional propuesta por Garaulet et al., para determinar la distribución de la grasa abdominal y comparar los result [...] ados con la composición corporal obtenida mediante el análisis de impedancia bioeléctrica multi-frecuencia (M-BIA). Sujetos/métodos: Estudiamos a 230 mujeres a las que se sometió a antropometría y M-BIA. Se aplicó la ecuación predicitiva. Se realizaron correlaciones lineales multivariadas y parciales controlando el IMC y el % de grasa corporal, utilizando SPSS 15.0 con significación estadística P Abstract in english Introduction: The excess of visceral abdominal adipose tissue is one of the major concerns in obesity and its clinical treatment. Objective: To apply the two-dimensional predictive equation proposed by Garaulet et al. to determine the abdominal fat distribution and to compare the results with the bo [...] dy composition obtained by multi-frequency bioelectrical impedance analysis (M-BIA). Subjects/methods: We studied 230 women, who underwent anthropometry and M-BIA. The predictive equation was applied. Multivariate lineal and partial correlation analyses were performed with control for BMI and % body fat, using SPSS 15.0 with statistical significance P

  4. Biosíntesis de alcaloides bencilisoquinolínicos

    Directory of Open Access Journals (Sweden)

    Christian Anabí Riley-Saldaña

    2012-08-01

    Full Text Available Benzylisoquinoline alkaloid biosynthesis. The benzylisoquinoline alkaloids (BIA are specialized metabolites with an ancient phylogeneticdistribution, but still preserved in modern clades. Some of them, such as morphine, sanguinerine or berberine, are important for modernmedicine. This review discusses the highlights of the current state of the biosynthesis of BIA. There have been studies that show thebiosynthesis of 22 of these nitrogenous metabolites. In their formation there are 43 enzymes grouped into oxidoreductases, transferasesand lyases, which in some cases represent atypical examples of the manner in which the secondary metabolism diversification wasoriginated. Two of these examples are the cytochrome proteins P450 (P450, with catalytic activities for ABI route, or the norcoclaurinesynthase enzyme (NCS, which share substantial identity with defense allergenic proteins. Likewise, there are genetic advances thathave produced the characterization of 30 enzymes, allowing knowledge of regulatory processes. Another interesting aspect is thecompartmentation of the biosynthesis sites and accumulation of BIA, since in several cases they are spatially separated and in differentspecies, or in the same species several types of cells may be involved. This has suggested intra and intercellular transport of alkaloids,precursors and enzymes, and it has been documented berberine transport between the cytoplasm and the vacuoles of storage. The picturefor the biosynthesis of BIA has been constructed with exemplary studies of alkaloids with pharmacological importance.

  5. 23 CFR 661.27 - What does a complete application package for construction consist of and how does the project...

    Science.gov (United States)

    2010-04-01

    ...application package for construction consist of and how...INDIAN RESERVATION ROAD BRIDGE PROGRAM § 661.27...application package for construction consist of and how...application package for construction consists of the following...For non-BIA IRR bridges, the...

  6. 25 CFR 1000.65 - What kinds of activities do planning and negotiation grants support?

    Science.gov (United States)

    2010-04-01

    ...What kinds of activities do planning and negotiation grants support? 1000.65 Section...Financial Assistance for Planning and Negotiation Grants for Non-BIA Programs Eligibility...What kinds of activities do planning and negotiation grants support? The planning...

  7. 25 CFR 1000.64 - How does the Tribe/Consortium know when and how to apply to OSG for a planning and negotiation...

    Science.gov (United States)

    2010-04-01

    ...how to apply to OSG for a planning and negotiation grant? 1000.64 Section 1000...Financial Assistance for Planning and Negotiation Grants for Non-BIA Programs Eligibility...how to apply to OSG for a planning and negotiation grant? When funds are...

  8. Cartographic Encounters at the Bureau of Indian Affairs Geographic Information System Center of Calculation

    Science.gov (United States)

    Palmer, Mark H.

    2012-01-01

    The centering processes of geographic information system (GIS) development at the United States Bureau of Indian Affairs (BIA) was an extension of past cartographic encounters with American Indians through the central control of geospatial technologies, uneven development of geographic information resources, and extension of technically dependent…

  9. Value of bioimpedance analysis and anthropometry for complication prediction in children with malignant and non-malignant diseases after hematopoietic stem cells transplantation

    Directory of Open Access Journals (Sweden)

    G. Ya. Tseytlin

    2014-07-01

    Full Text Available Hematopoietic stem cell transplantation (HSCT is widely used in the treatment of malignant and autoimmune diseases. Various complications often develop during the post-transplantation period that can significantly impair the clinical outcomes, so the ability to predict therisk of severe complications is of great practical importance. Predictive value of some anthropometric indices and bioimpedance analysis(BIA measured before conditioning to assess the risks of serious complications and graft hypofunction in the early post-transplant period(100 days were analyzed. Anthropometry and BIA used in a comprehensive assessment of nutritional status in order to optimize the nutritional support of these patients. 101 patients were examined before conditioning and at different times during the early post-transplant period: 50 children (5–17 years of age were examined using BIA and anthropometry, 61 children (6 months – 4 years of age – using only anthropometry without BIA due to age restrictions. The prognostic value of the phase angle (FA, ratio of the active cell mass to lean body mass (ACM/LBM and shoulder muscle circumference (SMC was shown. Thus, in patients with FA ? 4, ACM/LBM < 0.45 and SMC ? 10th percentile before conditioning risk of severe complications during early post-transplant period was significantly higher (p < 0.05. Also, in patients with FA ? 4 and ACM/LBM < 0.45 a significantly higher risk of graft hypofunction developing was observed (p < 0.05.

  10. Electrodeposition of Zirconium from DMSO Solution

    Directory of Open Access Journals (Sweden)

    Simka W.

    2014-06-01

    Full Text Available W pracy przedstawiono badania woltamperometryczne procesu elektroosadzania cyrkonu z roztworu DMSO na ró?nych pod?o?ach. Stwierdzono, ?e jest to procees wieloelektronowy zachodz?cy w kilku etapach. Ponadto otrzymano warstwy cyrkonu na tytanie, miedzi, stali kwasoodpornej i niklu. Wytworzony osad katodowy mia? form? bia?ego proszku, na skutek natychmiastowego utlenienia cyrkonu w kontakcie z powietrzem.

  11. Relocation and Urbanization: An Educational History of the American Indian Experience in Chicago, 1952-1972

    Science.gov (United States)

    Laukaitis, John J.

    2005-01-01

    The Bureau of Indian Affairs (BIA) created the Relocation Program in 1952 to sever Indian federal trust status and impose Euro-American values on Indians all under the guise of benevolence. Led from reservations to urban areas, Indians found the problems of their reservations in their new locations: few employment opportunities, poor housing…

  12. New Deal Experimentation and the Political Economy of the Yankton Sioux, 1930-1934

    Science.gov (United States)

    Houser, Teresa M.

    2011-01-01

    Franklin Delano Roosevelt's election to the presidency in 1932 signaled a mandate for sweeping reform at the federal level to lift the nation out of the economic turbulence of the Great Depression. Under Commissioner of Indian Affairs John Collier, the Bureau of Indian Affairs (BIA) joined other agencies in launching policies to rebuild economic…

  13. 76 FR 7500 - Indian Trust Management Reform-Implementation of Statutory Changes

    Science.gov (United States)

    2011-02-10

    ...DEPARTMENT OF THE INTERIOR Bureau of Indian Affairs 25 CFR Part 15 Office...BIA-2009-0001] RIN 1076-AF07 Indian Trust Management Reform...include enrollment and family history data or property title documents...of interests in a deceased Indian's estate; or (d)...

  14. 25 CFR 103.33 - Are there reporting requirements?

    Science.gov (United States)

    2010-04-01

    25 Indians 1 2010-04-01 2010-04-01...requirements? 103.33 Section 103.33 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR...report the borrower's loan payment history so that BIA can recalculate the...

  15. Paleoecological interpretation of a Holocene sand body in the coastal area of Phetchaburi, Gulf of Thailand

    Directory of Open Access Journals (Sweden)

    Elio Robba

    2005-10-01

    Full Text Available Faunal examination is made of 4 samples, 2 from the Recent Ban Laem Phak Bia sand spit, and 2 from the Holocene sand body of Ban Bang Ket. Fossil and modern assemblages are compared on the basis of overall composition, taxa abundances, and of autoecological investigation on life habit, substrate preference, feeding type, depth range and ecological meaning of the identified species. The Holocene assemblage of Ban Bang Ket, compared to the Recent one of Ban Laem Phak Bia, 1 exhibits generally similar overall composition and ecological structure, 2 contains much of the dominant species characterizing the modern assemblage, and 3includes all taxa that are members of the living molluscan community. On this basis, the molluscan assemblage of Ban Bang Ket results to be the Holocene counterpart of the modern one of Ban Laem Phak Bia, and reflects the same environmental conditions recorded for the latter. Thus, the sand body near Ban Bang Ket is interpreted as a Holocene equivalent of the sand spit of Ban Laem Phak Bia.

  16. [1971 Annual Credit and Financing Report. Financing Indian Development.

    Science.gov (United States)

    Bureau of Indian Affairs (Dept. of Interior), Washington, DC.

    The Bureau of Indian Affairs (BIA) 1971 Annual Credit and Financing Report describes the financing available for economic advancement of American Indians. The 3 main financing sources cited in this report are (1) customary leaders, both private and Government; (2) tribes and other Indian organizations with funds of their own; and (3) the revolving…

  17. English Language Testing Project for the Bureau of Indian Affairs.

    Science.gov (United States)

    Briere, Eugene J.

    This brochure contains a summary of an English language testing project being developed by the University of Southern California under the aegis of the Bureau of Indian Affairs (BIA). Previous attempts (Stanford Achievement Test, California Achievement Test) have failed to test American Indian children's performance in reading, vocabulary, and…

  18. 32 CFR Attachment 5 to Part 855 - Sample Temporary Agreement

    Science.gov (United States)

    2010-07-01

    ...Sample Temporary Agreement 5 Attachment 5 to Part 855 National Defense...AIRFIELDS Pt. 855, Att. 5 Attachment 5 to Part 855—Sample Temporary...responsible for any damage or loss to such equipment, and BIA...assumes all risks of any such loss or damage and agrees to...

  19. 25 CFR 12.21 - What authority is given to Indian country law enforcement officers to perform their duties?

    Science.gov (United States)

    2010-04-01

    ...full-time certified law enforcement officers...effectiveness of these special law enforcement commissions...authority. (b) Tribal law enforcement officers operating under a BIA contract or compact are not automatically...may be commissioned on a case-by-case...

  20. The Turtle Mountain Reservation in North Dakota: Its History as Depicted in Louise Erdrich's "Love Medicine" and "Beet Queen."

    Science.gov (United States)

    Maristuen-Rodakowski, Julie

    1988-01-01

    Traces the history of the Chippewa tribe of Turtle Mountain Reservation, and relates it to Louise Erdrich's fictional depiction of assimilation over four generations. Discusses the French heritage of reservation families; development of Michif, a mixture of Cree and French; and effects of land allotment and BIA schooling. (SV)

  1. Effective and timely evaluation of pulmonary congestion: qualitative comparison between lung ultrasound and thoracic bioelectrical impedance in maintenance hemodialysis patients.

    Science.gov (United States)

    Donadio, Carlo; Bozzoli, Laura; Colombini, Elisa; Pisanu, Giovanna; Ricchiuti, Guido; Picano, Eugenio; Gargani, Luna

    2015-02-01

    The assessment of pulmonary congestion in maintenance hemodialysis (MHD) patients is challenging. Bioelectrical impedance analysis (BIA) can estimate body water compartments. Natriuretic peptides are markers of hemodynamic stress, neurohormonal activation and extracellular volume overload. Lung ultrasound (LUS) has been proposed for the non-invasive estimation of extravascular lung water through B-lines assessment. Up to now, no study evaluated the correlation between B-lines, segmental thoracic BIA, and natriuretic peptides in MHD patients. The aims of this study were: (1) To validate LUS as a tool for an effective and timely evaluation of pulmonary congestion in MHD patients, in comparison with segmental thoracic BIA, and with natriuretic peptides; (2) To compare a comprehensive whole chest ultrasound scanning with a simplified and timely scanning scheme limited to the lateral chest regions.Thirty-one MHD adult patients were examined. LUS, total body and thoracic BIA, and natriuretic peptides were performed immediately before and after a mid-week dialysis session. The number of B-lines assessed by LUS was compared with total body and thoracic impedance data and with natriuretic peptides.Pre-HD B-lines ranged 0-147 (mean 31) and decreased significantly post-HD (mean 16, P?MHD patients is highly feasible with a simplified and timely scanning scheme limited to the lateral chest regions. These premises make B-lines a promising biomarker for a bedside assessment of pulmonary congestion in MHD patients. PMID:25674735

  2. Health policy for the poor: an exploration on the take-up of means-tested health benefits in Turkey.

    Science.gov (United States)

    Erus, Burcay; Yakut-Cakar, Burcu; Cali, Sanda; Adaman, Fikret

    2015-04-01

    Recent healthcare reform in Turkey aims at achieving universal coverage with the introduction of General Health Insurance (GHI). As part of GHI, the state assumes the provision of health insurance coverage to those unable to afford the public health insurance premiums conditional on a means-testing procedure where the official threshold is set as one-third of the gross minimum wage. This article aims at exploring in Turkey the prevalence of non-take up of means-tested health insurance for the poor and the consequent financial burdens for those poor segments outside the coverage. Based upon Statistics of Income and Living Conditions micro data, the non-take-up rate is estimated to be around 44%, where the prevalence of non-take-up is lower yet still high, i.e. around 30%, for households with very low incomes as well as those with elderly or ill members. The results from a separate health expenditure survey on urban poor, which is specifically designed and implemented by the authors, reveal that poor households without health insurance coverage are faced with significant out-of-pocket expenditures. About 5% of those households without coverage were found to have inpatient expenditures that exceeded 20% of their annual disposable household income. Also, among the households without coverage but with at least one inpatient visit over the last two years, the median expenditure was reported as high as 8% of the annual household income as opposed to 0% median value for those with GHI. The results highlight that a large proportion of poor population still lacks public health insurance despite the overarching aim of universal coverage. PMID:25689667

  3. Analysis and Prediction of Energy Production in Concentrating Photovoltaic (CPV Installations

    Directory of Open Access Journals (Sweden)

    Allen Barnett

    2012-03-01

    Full Text Available A method for the prediction of Energy Production (EP in Concentrating Photovoltaic (CPV installations is examined in this study. It presents a new method that predicts EP by using Global Horizontal Irradiation (GHI and the Photovoltaic Geographical Information System (PVGIS database, instead of Direct Normal Irradiation (DNI data, which are rarely recorded at most locations. EP at four Spanish CPV installations is analyzed: two are based on silicon solar cells and the other two on multi-junction III-V solar cells. The real EP is compared with the predicted EP. Two methods for EP prediction are presented. In the first preliminary method, a monthly Performance Ratio (PR is used as an arbitrary constant value (75% and an estimation of the DNI. The DNI estimation is obtained from GHI measurements and the PVGIS database. In the second method, a lineal model is proposed for the first time in this paper to obtain the predicted EP from the estimated DNI. This lineal model is the regression line that correlates the real monthly EP and the estimated DNI in 2009. This new method implies that the monthly PR is variable. Using the new method, the difference between the predicted and the real EP values is less than 2% for the annual EP and is in the range of 5.6%–16.1% for the monthly EP. The method that uses the variable monthly PR allows the prediction of the EP with reasonable accuracy. It is therefore possible to predict the CPV EP for any location, using only widely available GHI data and the PVGIS database.

  4. Developing and testing solar irradiance forecasting techniques in the Hawaiian Islands region

    Science.gov (United States)

    Matthews, D. K.; Souza, J. M.; Stein, K.

    2014-12-01

    Irradiance variability, primarily driven by cloud formation and advection, can be problematic in the state of Hawaíi, because of the high penetration of distributed solar and the small scale of the island electrical grids. The Hawaíi Natural Energy Institute (HNEI) is developing an operational system in order to research and test new techniques to generate solar forecasts for the Hawaiian Islands. The operational system comprises the following three components.(i) A ground-observation-based advection model, using sky imagers and a ceilometer located at the University of Hawaíi at M?noa. Every 10 minutes (during daylight hours), this component generates a high-resolution 1 hour Global Horizontal Irradiance (GHI) prediction for a region that is within ~15 km of the instrumentation. (ii) A satellite-image-based advection model, using Geostationary Operational Environmental Satellite (GOES) imagery and the Heliosat-II method. Every 30 minutes (during daylight hours), this component generates a 1 km resolution, 6 hour GHI prediction for the entire Hawaiian Archipelago. (iii) A coupled ocean-atmosphere model, using the Regional Ocean Modeling System (ROMS) model and the Weather Research and Forecasting (WRF) model, including newly available microphysics, shallow convection parameterization, and radiative transfer model options. Nightly, this component generates 48 hour GHI, Direct Normal Irradiance (DNI), and Diffuse Horizontal Irradiance (DHI) predictions for (a) a 10 km resolution domain covering the full Hawaiian Archipelago and (b) a nested 2 km resolution domain covering the islands of Maui, Óahu, and Hawaíi. We discuss the development and validation of the system, and the scales of forecasting accuracy for each component. We also examine the impact of the coupled model on the simulations of surface flux processeses and ocean-atmosphere feedbacks, both of which influence the prediction of regional cloud properties.

  5. Source apportionment of elevated wintertime PAHs by compound-specific radiocarbon analysis

    Directory of Open Access Journals (Sweden)

    R. J. Sheesley

    2008-12-01

    Full Text Available Natural abundance radiocarbon analysis facilitates distinct source apportionment between contemporary biomass/biofuel (14C "alive" versus fossil fuel (14C "dead" combustion. Here, the first compound-specific radiocarbon analysis (CSRA of atmospheric polycylic aromatic hydrocarbons (PAHs was demonstrated for a set of samples collected in Lycksele, Sweden a small town with frequent episodes of severe atmospheric pollution in the winter. Renewed interest in residential wood combustion means than this type of seasonal pollution is of increasing concern in many areas. Five individual/paired PAH isolates from three pooled fortnight-long filter collections were analyzed by CSRA: phenanthrene, fluoranthene, pyrene, benzo[b+k]fluoranthene and indeno[cd]pyrene plus benzo[ghi]perylene; phenanthrene was the only compound also analyzed in the gas phase. The measured ?14C for PAHs spanned from ?138.3‰ to 58.0‰. A simple isotopic mass balance model was applied to estimate the fraction biomass (fbiomass contribution that was constrained to a range of 71% for indeno[cd]pyrene+benzo[ghi]perylene to 87% for the gas phase phenanthrene and particulate fluoranthene, respectively. Indeno[cd]pyrene plus benzo[ghi]perylene, known to be enhanced in gasoline-powered motor vehicle exhaust compared to diesel exhaust, had the lowest contribution of biomass combustion of the measured PAHs by 9%. The total organic carbon (TOC, defined as carbon remaining after removal of inorganic carbon fbiomass was estimated to be 77%, which falls within the range for PAHs. This CSRA data of atmospheric PAHs demonstrate the non-uniformity of biomass combustion contribution to different PAHs even in a location with limited local emission sources and illustrates that regulatory efforts would not evenly reduce all PAHs.

  6. Percent body fat estimations in college women using field and laboratory methods: a three-compartment model approach

    Directory of Open Access Journals (Sweden)

    Dalbo Vincent J

    2007-11-01

    Full Text Available Abstract Background Methods used to estimate percent body fat can be classified as a laboratory or field technique. However, the validity of these methods compared to multiple-compartment models has not been fully established. This investigation sought to determine the validity of field and laboratory methods for estimating percent fat (%fat in healthy college-age women compared to the Siri three-compartment model (3C. Methods Thirty Caucasian women (21.1 ± 1.5 yrs; 164.8 ± 4.7 cm; 61.2 ± 6.8 kg had their %fat estimated by BIA using the BodyGram™ computer program (BIA-AK and population-specific equation (BIA-Lohman, NIR (Futrex® 6100/XL, a quadratic (SF3JPW and linear (SF3WB skinfold equation, air-displacement plethysmography (BP, and hydrostatic weighing (HW. Results All methods produced acceptable total error (TE values compared to the 3C model. Both laboratory methods produced similar TE values (HW, TE = 2.4%fat; BP, TE = 2.3%fat when compared to the 3C model, though a significant constant error (CE was detected for HW (1.5%fat, p ? 0.006. The field methods produced acceptable TE values ranging from 1.8 – 3.8 %fat. BIA-AK (TE = 1.8%fat yielded the lowest TE among the field methods, while BIA-Lohman (TE = 2.1%fat and NIR (TE = 2.7%fat produced lower TE values than both skinfold equations (TE > 2.7%fat compared to the 3C model. Additionally, the SF3JPW %fat estimation equation resulted in a significant CE (2.6%fat, p ? 0.007. Conclusion Data suggest that the BP and HW are valid laboratory methods when compared to the 3C model to estimate %fat in college-age Caucasian women. When the use of a laboratory method is not feasible, NIR, BIA-AK, BIA-Lohman, SF3JPW, and SF3WB are acceptable field methods to estimate %fat in this population.

  7. A randomized controlled trial of long term effect of BCM guided fluid management in MHD patients (BOCOMO study: rationales and study design

    Directory of Open Access Journals (Sweden)

    Liu Li

    2012-09-01

    Full Text Available Abstract Background Bioimpedance analysis (BIA has been reported as helpful in identifying hypervolemia. Observation data showed that hypervolemic maintenance hemodialysis (MHD patients identified using BIA methods have higher mortality risk. However, it is not known if BIA-guided fluid management can improve MHD patients’ survival. The objectives of the BOCOMO study are to evaluate the outcome of BIA guided fluid management compared with standard care. Methods This is a multicenter, prospective, randomized, controlled trial. More than 1300 participants from 16 clinical sites will be included in the study. The enrolment period will last 6 months, and minimum length of follow-up will be 36 months. MHD patients aged between 18 years and 80 years who have been on MHD for at least 3 months and meet eligibility criteria will be invited to participate in the study. Participants will be randomized to BIA arm or control arm in a 1:1 ratio. A portable whole body bioimpedance spectroscopy device (BCM—Fresenius Medical Care D GmbH will be used for BIA measurement at baseline for both arms of the study. In the BIA arm, additional BCM measurements will be performed every 2 months. The primary intent-to-treat analysis will compare outcomes for a composite endpoint of death, acute myocardial infarction, stroke or incident peripheral arterial occlusive disease between groups. Secondary endpoints will include left ventricular wall thickness, blood pressure, medications, and incidence and length of hospitalization. Discussions Previous results regarding the benefit of strict fluid control are conflicting due to small sample sizes and unstable dry weight estimating methods. To our knowledge this is the first large-scale, multicentre, prospective, randomized controlled trial to assess whether BIS-guided volume management improves outcomes of MHD patients. The endpoints of the BOCOMO study are of utmost importance to health care providers. In order to obtain that aim, the study was designed with very careful important considerations related to the endpoints, sample size, inclusion criteria, exclusion criteria and so on. For example, annual mortality of Beijing MHD patients was around 10%. To reach statistical significance, the sample size will be very large. By using composite endpoint, the sample size becomes reasonable and feasible. Limiting inclusion to patients with urine volume less than 800 ml/day the day before dialysis session will limit confounding due to residual renal function effects on the measured parameters. Patients who had received BIS measurement within 3 months prior to enrolment are excluded as data from such measurements might lead to protocol violation. Although not all patients enrolled will be incident patients, we will record the vintage of dialysis in the multivariable analysis. Trial registration Current Controlled Trials NCT01509937

  8. Gasto energético de adultos brasileños saludables: una comparación de métodos Energy expenditure of healthy brazilian adults: a comparison of methods

    Directory of Open Access Journals (Sweden)

    F. C. Esteves de Oliveira

    2008-12-01

    Full Text Available Hay diversos métodos disponibles para medir el consumo de energía en el ser humano. Debido al alto costo y pequeño número de laboratorios capaces de utilizar la calorimetría directa y la técnica del agua doblemente marcada, se ha realizado un número relativamente pequeño de mediciones del gasto energético utilizándose estos métodos. Así, cada día más, los investigadores se atienen en alto grado a los métodos de calorimetría indirecta (CI y bioimpedancia eléctrica (BIA y los clínicos a las ecuaciones de predicción para calcular los requerimientos de energía total en sus estudios y pacientes respectivamente. Objetivo: Evaluar el Gasto Energético Basal (GEB y el Gasto Energético Total (GET de individuos saludables comparando los resultados de CI, BIA y ecuaciones predictivas con los de requerimiento estimado de energía (EER, Fleisch, FAO/WHO/UNU 1985 y 2001. Material y métodos: Se evaluó el gasto energético en 81 individuos de ambos sexos por CI y BIA. De estos, fueron calculados el GEB por las ecuaciones FAO/WHO/UNU 1985 y 2001 y el GET por EER, Fleisch y FAO/WHO/UNU 1985 y 2001. Los datos se analizaron con el programa Sigma Stat for Windows versión 2.03 y se utilizó eltest de Dunn's para la comparación de las medianas obtenidas por los métodos y ecuaciones (p There are many available methods to measure the human energy consumption. Due to the high cost and small number of laboratories able to perform it, the direct calorimetry and doubly labeled water technique are rarely used to measure the energy expenditure. As consequence, there is an increase use of the indirect calorimetry and bioelectrical impedance analysis methods by researchers and predictive equations by physicians to calculate the total energy requirements in research and in clinic. Objective: To evaluate the basal energy expenditure (GEB and total energy expenditure (GET of healthy subjects comparing results of indirect calorimetry (CI, bioelectrical impedance analysis (BIA and predictive equations such as estimated energy requirements (EER, Fleish, FAO/WHO/UNU 1985 and 2001. Material and methods: It was evaluated the energy expenditure in 81 subjects of both gender by CI and BIA. Of these, the GEB by predictive equations FAO/WHO/UNU 1985 and 2001 and the GET by EER, Fleisch and FAO/WHO/UNU 1985 and 2001 were calculated. The data was analyzed with the software Sigma Stat for Windows version 2.03 and Dunn's test was used for comparison of mean obtained with methods and equations (p < 0.05. Results: It was verified that 60.5% of the participants were men. The majority of subjects were eutrofic. BIA showed significant differences between men and women. The differences between the values of GEB, obtained by BIA and CI, were statistically significant only for women (p < 0.05 with an underestimation of the GEB results obtained by BIA in relation to those obtained by CI. Significant difference was found between the predictive equations and CI for both sexes, also demonstrating an underestimation of the equations in relation to CI. It was observed an overestimation of GET with the predictive equations of FAO/WHO/UNU/85 and 2001 in relation to EER and Fleisch for both sexes. Conclusion: The estimation of GEB can be carried out by both BIA and CI, although BIA must be used with criteria since it underestimates in a significant way for women. In relation to the predictive equations, overestimation can develop positive energy balance in populations with risks for overweight and obesity. Thus, it is necessary comparisons to identify the limitations of each method.

  9. Solar Radiometric Data Quality Assessment of SIRS, SKYRAD and GNDRAD Measurements (Poster)

    Energy Technology Data Exchange (ETDEWEB)

    Habte, A.; Stoffel, T.; Reda, I.; Wilcox, S.; Kutchenreiter, M.; Gotseff, P.; Anderberg, M.

    2014-03-01

    Solar radiation is the driving force for the earth's weather and climate. Understanding the elements of this dynamic energy balance requires accurate measurements of broadband solar irradiance. Since the mid-1990's the ARM Program has deployed pyrheliometers and pyranometers for the measurement of direct normal irradiance (DNI), global horizontal irradiance (GHI), diffuse horizontal irradiance (DHI), and upwelling shortwave (US) radiation at permanent and mobile field research sites. This poster summarizes the basis for assessing the broadband solar radiation data available from the SIRS, SKYRAD, and GNDRAD measurement systems and provides examples of data inspections.

  10. Supercritical fluid extraction of polycyclic aromatic hydrocarbons from seaweed samples before and after the prestige oil spill.

    Science.gov (United States)

    Lage-Yusty, M A; Alvarez-Pérez, S; Punín-Crespo, M O

    2009-02-01

    Samples of seaweed which are used for human consumption were collected along the Galician coast (NW Spain), in order to determine the level of contamination from polycyclic aromatic hydrocarbons, by supercritical fluid extraction and liquid chromatographic analysis. No detection was made of benzo[a]pyrene, benzo[a]anthracene, benzo[b]fluoranthene, benzo[ghi]perylene and dibenzo[ah]anthracene. PAHs were found and quantified in only two samples. The PAHs found were the following: anthracene, chrysene, fluoranthene, fluorene and pyrene. The levels found were below maximum limits established by the Spanish Food Safety authority (seaweed. PMID:18654728

  11. Calibration of long-term global horizontal irradiation estimated by HelioClim-3 through short-term local measurement campaigns: extending of the results to European and African sites

    OpenAIRE

    Vernay, Christophe; Pitaval, Sébastien; Blanc, Philippe

    2012-01-01

    This paper proposes an adaptation of a recent ground-based short-term calibration algorithm applied to long-term time-series of global horizontal irradiation (GHI) provided by HelioClim-3 (HC3), a satellite-based surface solar irradiation database; it extends the initial conclusions for the South-East of France to a larger coverage. A first analysis of the long-term ground pyranometric measurements leads to the characterization of the clearness index error variability which confirms the syste...

  12. Biochemical and spectroscopic characterization of the membrane-bound nitrate reductase from Marinobacter hydrocarbonoclasticus 617

    OpenAIRE

    Correia, Cristina; Besson, Stéphane; Brondino, Carlos D.; González, Pablo J.; Lampreia, Jorge; Moura, Isabel; Moura, José J.G.

    2008-01-01

    Membrane-bound nitrate reductase from Marinobacter hydrocarbonoclasticus 617 can be solubilized in either of two ways that will ultimately determine the presence or absence of the small (Iota) subunit. The enzyme complex (NarGHI) is composed of three subunits with molecular masses of 130, 65, and 20 kDa. This enzyme contains approximately 14 Fe, 0.8 Mo, and 1.3 molybdopterin guanine dinucleotides per enzyme molecule. Curiously, one heme b and 0.4 heme c per enzyme molecule have been detected....

  13. Determination of polycyclic aromatic hydrocarbons from buzzards (Buteo buteo) and tawny owl (Strix aluco) by liquid chromatography with fluorescence detection.

    Science.gov (United States)

    González, Amigo Susana; Lage, YustyiMariaAsunción; Simal, Lozano Jesús

    2002-01-01

    Supercritical fluid extraction was applied to the determination of naturally contaminated polycyclic aromatic hydrocarbons (PAHs) in bird tissue by liquid chromatography with fluorescence detection (LC-FL). Recoveries (> 90%) and relative standard deviations (tawny owls, predatory birds from the Galicia (northwest Spain). The PAHs found most abundantly were pyrene, fluoranthene, benzo[a]anthracene, and anthracene. Chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[ghi]perylene, and indeno[1,2,3-cd]pyrene were not detected. Intestine, kidney, and lung were more polluted than other tissues. PMID:11878593

  14. Body composition in Nepalese children using isotope dilution: the production of ethnic-specific calibration equations and an exploration of methodological issues

    Science.gov (United States)

    Grijalva-Eternod, Carlos S.; Roberts, Sebastian; Chaube, Shiva Shankar; Saville, Naomi M.; Manandhar, Dharma S.; Costello, Anthony; Osrin, David; Wells, Jonathan C.K.

    2015-01-01

    Background. Body composition is important as a marker of both current and future health. Bioelectrical impedance (BIA) is a simple and accurate method for estimating body composition, but requires population-specific calibration equations. Objectives. (1) To generate population specific calibration equations to predict lean mass (LM) from BIA in Nepalese children aged 7–9 years. (2) To explore methodological changes that may extend the range and improve accuracy. Methods. BIA measurements were obtained from 102 Nepalese children (52 girls) using the Tanita BC-418. Isotope dilution with deuterium oxide was used to measure total body water and to estimate LM. Prediction equations for estimating LM from BIA data were developed using linear regression, and estimates were compared with those obtained from the Tanita system. We assessed the effects of flexing the arms of children to extend the range of coverage towards lower weights. We also estimated potential error if the number of children included in the study was reduced. Findings. Prediction equations were generated, incorporating height, impedance index, weight and sex as predictors (R2 93%). The Tanita system tended to under-estimate LM, with a mean error of 2.2%, but extending up to 25.8%. Flexing the arms to 90° increased the lower weight range, but produced a small error that was not significant when applied to children <16 kg (p 0.42). Reducing the number of children increased the error at the tails of the weight distribution. Conclusions. Population-specific isotope calibration of BIA for Nepalese children has high accuracy. Arm position is important and can be used to extend the range of low weight covered. Smaller samples reduce resource requirements, but leads to large errors at the tails of the weight distribution. PMID:25780755

  15. Study and classification of the abdominal adiposity throughout the application of the two-dimensional predictive equation Garaulet et al., in the clinical practice Estudio y clasificación de la adiposidad abdominal mediante la aplicación de la ecuación predictiva bidimensional de Garaulet et al., en la práctica clínica

    Directory of Open Access Journals (Sweden)

    C. M.ª Piernas Sánchez

    2010-04-01

    Full Text Available Introduction: The excess of visceral abdominal adipose tissue is one of the major concerns in obesity and its clinical treatment. Objective: To apply the two-dimensional predictive equation proposed by Garaulet et al. to determine the abdominal fat distribution and to compare the results with the body composition obtained by multi-frequency bioelectrical impedance analysis (M-BIA. Subjects/methods: We studied 230 women, who underwent anthropometry and M-BIA. The predictive equation was applied. Multivariate lineal and partial correlation analyses were performed with control for BMI and % body fat, using SPSS 15.0 with statistical significance P Introducción: El exceso de tejido adiposo abdominal visceral es una de las mayores preocupaciones en la obesidad y su tratamiento clínico. Objetivo: Aplicar la ecuación predictiva bidimensional propuesta por Garaulet et al., para determinar la distribución de la grasa abdominal y comparar los resultados con la composición corporal obtenida mediante el análisis de impedancia bioeléctrica multi-frecuencia (M-BIA. Sujetos/métodos: Estudiamos a 230 mujeres a las que se sometió a antropometría y M-BIA. Se aplicó la ecuación predicitiva. Se realizaron correlaciones lineales multivariadas y parciales controlando el IMC y el % de grasa corporal, utilizando SPSS 15.0 con significación estadística P < 0,05. Resultados: En global, se consideró que las mujeres tenían una distribución subcutánea de la grasa abdominal. La grasa troncal, regional y la masa muscular se asociaron negativamente con VA/SApredicted, mientras que le índice visceral obtenido mediante M-BIA se correlacionó positivamente con VA/SApredicted. Discusión/conclusión: La ecuación predictiva puede ser útil en la práctica clínica para obtener una clasificación segura, barata y precisa de la obesidad abdominal.

  16. Wrodzone miopatie – choroby mi??ni szkieletowych zwi?zane z zaburzeniami struktury i funkcji filamentu aktynowego

    Directory of Open Access Journals (Sweden)

    Katarzyna Robaszkiewicz

    2011-06-01

    Full Text Available Wrodzone miopatie s? heterogenn? pod wzgl?dem klinicznym i genetycznym grup? chorób uk?adu mi??niowego, charakteryzuj?c? si? strukturalnymi zaburzeniami w obr?bie w?ókien mi??niowych oraz os?abieniem i deformacj? ró?nych partii mi??ni. W obrazie klinicznym pacjenci prezentuj? wiele objawów – od ostrych, prowadz?cych do ?mierci we wczesnym okresie noworodkowym, do ?agodnych ujawniaj?cych si? dopiero w wieku dojrza?ym. W obrazach mikroskopowych mi??ni zmiany strukturalne przybieraj? posta? nitkowatych wtr?tów w sarkoplazmie (miopatia nemalinowa – NM lub j?drze komórkowym (miopatia z wewn?trzj?drowymi pa?eczkami – IRM, czapeczkowatych struktur umieszczonych obwodowo w komórce (miopatia typu czapeczek – CD, akumulacji filamentów aktynowych we w?óknie mi??niowym (miopatia aktynowa – AM, zmian w wielko?ci i liczbie wolnych i szybkich w?ókien mi??niowych (wrodzona dysproporcja typów w?ókien – CFTD, nieregularnej linii Z, czy te? zmian w po?o?eniu j?der komórkowych. Za rozwój wrodzonych miopatii odpowiedzialne s? mutacje w kilku genach koduj?cych bia?ka mi??niowe. Najcz?stsze mutacje dotycz? genów koduj?cych bia?ka zwi?zane z cienkim filamentem – aktyn? ([i]ACTA1[/i], tropomiozyn? ([i]TPM2 i TPM3[/i], troponin? ([i]TNNT1[/i] i [i]neb[/i]ulin? (NEB. Badania[i] in vitro [/i]i [i]in vivo [/i]wykaza?y, ?e zidentyfikowane mutacje wywo?uj? zmiany w strukturze bia?ek cienkiego filamentu, zaburzaj?ce procesy polimeryzacji i stabilizacji aktyny, jej wewn?trzkomórkowej lokalizacji oraz regulacji oddzia?ywa? aktyny z miozyn?. Wiele wyników wskazuje na „toksyczne” dzia?anie bia?ka zmienionego przez mutacj?. Niestety, nie istnieje prosta korelacja mi?dzy zmian? w funkcji bia?ek a patomorfologi? i objawami klinicznymi miopatii.

  17. Optimization and determination of polycyclic aromatic hydrocarbons in biochar-based fertilizers.

    Science.gov (United States)

    Chen, Ping; Zhou, Hui; Gan, Jay; Sun, Mingxing; Shang, Guofeng; Liu, Liang; Shen, Guoqing

    2015-03-01

    The agronomic benefit of biochar has attracted widespread attention to biochar-based fertilizers. However, the inevitable presence of polycyclic aromatic hydrocarbons in biochar is a matter of concern because of the health and ecological risks of these compounds. The strong adsorption of polycyclic aromatic hydrocarbons to biochar complicates their analysis and extraction from biochar-based fertilizers. In this study, we optimized and validated a method for determining the 16 priority polycyclic aromatic hydrocarbons in biochar-based fertilizers. Results showed that accelerated solvent extraction exhibited high extraction efficiency. Based on a Box-Behnken design with a triplicate central point, accelerated solvent extraction was used under the following optimal operational conditions: extraction temperature of 78°C, extraction time of 17 min, and two static cycles. The optimized method was validated by assessing the linearity of analysis, limit of detection, limit of quantification, recovery, and application to real samples. The results showed that the 16 polycyclic aromatic hydrocarbons exhibited good linearity, with a correlation coefficient of 0.996. The limits of detection varied between 0.001 (phenanthrene) and 0.021 mg/g (benzo[ghi]perylene), and the limits of quantification varied between 0.004 (phenanthrene) and 0.069 mg/g (benzo[ghi]perylene). The relative recoveries of the 16 polycyclic aromatic hydrocarbons were 70.26-102.99%. PMID:25546393

  18. Direct mutagenicity of the polycylic aromatic hydrocarbon-containing fraction of smoked and charcoal-broiled foods treated with nitrite in acid solution.

    Science.gov (United States)

    Kangsadalampai, K; Butryee, C; Manoonphol, K

    1997-02-01

    The polycyclic aromatic hydrocarbons (PAH) containing fractions of smoked and charcoal-broiled foods, namely, Sheat fish (Kytopterus apogon), Mimrow (Crossocheilus reba), Freshwater catfish (Clarias batrachus), chicken wings, rice pork sausage and pork, in addition to naphthalene, acenaphthene, anthracene, phenanthrene, fluoranthene, pyrene, benz[a]anthracene, naphthacene, benzo[a]pyrene, benzo[e]pyrene, 9,10-dimethyl-1,2-benzanthracene, dibenz[ah]anthracene, benzo[ghi]perylene and coronene, were evaluated for their mutagenic potential using Salmonella typhimurium strains TA98 and TA100 in the absence of metabolic activation after being treated with nitrite (500 mM) for 4 hr at 37 degrees C and in acid solution pH 3.0-3.5. The presence of N-nitroso compounds was also determined. Results showed that nitrite could convert most samples to direct-acting mutagens towards both strains except for fluoranthene and benzo[ghi]perylene, which exhibit mutagenicity only with TA98. It was demonstrated that treatment of PAHs with nitrite in acid solution produced some non-N-nitroso direct-acting mutagens, suggesting that they might belong to nitro-PAHs. Therefore, the consumption of charcoal-broiled and smoked foods simultaneously with nitrite is not recommended. PMID:9146734

  19. Measurement of C{sub 24}H{sub 14} polycyclic aromatic hydrocarbons associated with a size-segregated urban aerosol

    Energy Technology Data Exchange (ETDEWEB)

    Allen, J.O.; Dookeran, N.M.; Sarofim, A.F.; Smith, K.A.; Taghizadeh, K.; Plummer, E.F.; Lafleur, A.L. [Massachusetts Inst. of Tech., Cambridge, MA (United States); Durant, J.L. [Tufts Univ., Medford, MA (United States)

    1998-07-01

    Six-ring C{sub 24}H{sub 14} (MW 302) polycyclic aromatic hydrocarbons (PAH), some of which are potent mutagens, are present in urban aerosols. Size-segregated atmospheric aerosol samples from Boston, MA, were analyzed for C{sub 24}H{sub 14} PAH by gas chromatography/mass spectrometry. Eleven peaks were found with mass to charge ratios of 302; of these, eight were identified using authentic standards. Five of the peaks were quantified. For each of these five, the distributions with respect to particle size were bimodal with the majority of the mass associated with accumulation mode particles and a smaller fraction of the mass associated with ultrafine mode particles. These distributions are similar to those observed for PAH of molecular weight 252--278 in the same sample but different from those of benzo[ghi]perylene and coronene which were associated to a greater degree with ultrafine particles. The data suggest that C{sub 24}H{sub 14} PAH repartition to larger particles by vaporization and sorption more rapidly than do benzo[ghi]perylene and coronene. The total concentration of C{sub 24}H{sub 14} PAH was comparable to that of benzo[a]pyrene in the same sample. Because of their mutagenicities, C{sub 24}H{sub 14} PAH may make a contribution to the genotoxicity of urban aerosols comparable to that of benzo[a]pyrene.

  20. Pre- and syn-Ross orogenic granitoids at Drake Head and Kartografov Island, Oates Coast, northern Victoria Land, East Antarctica

    International Nuclear Information System (INIS)

    The majority of the Oates Coast, northern Victoria Land granitoids, typified by those at Drake Head and Kartografov Island (Harald Bay), are monzogranites with lesser granodiorites and minor quartz-monzodiorite and syenogranite. All are plagioclase-K-feldspar-biotite granitoids with additional muscovite, garnet and/or hornblende, and are subalkaline and peraluminous. Berg Granite typifies the early Ordovician, Granite Harbour Instrusive (GHI) suite of the Ross Orogen at the Oates Coast. Granitoids from Kartografov Island have higher amounts of Fe+Mg+Ti and an ambiguous Rb-Sr geochronology: they could be either pre-Ross Orogeny in age, or syn-Ross Orogeny and representing a lower structural level of GHI. The Drake Head granite gneiss has a fractionated leuco-granite composition similar to Berg Granite, and is intruded by granite and granodiorite. Rb-Sr ages indicate that all are Neoproterozoic, although the granite gneiss result is probably an errorchron age, reflecting its less uniform nature (granodiorite:649 ± 30 Ma, initial ratio 0.7065 +/- 6; granite gneiss: 682 ± 140 Ma, initial ratio 0.7107 ± 50). These late Neoproterozoic granitoids provide a source for distinctive detrital zircon age components in extensive early Paleozoic turbidites of Australia-New Zealand-Antarctica. (author). 24 refs., 5 figs., 1 tab

  1. Global horizontal irradiance clear sky models : implementation and analysis.

    Energy Technology Data Exchange (ETDEWEB)

    Stein, Joshua S.; Hansen, Clifford W.; Reno, Matthew J.

    2012-03-01

    Clear sky models estimate the terrestrial solar radiation under a cloudless sky as a function of the solar elevation angle, site altitude, aerosol concentration, water vapor, and various atmospheric conditions. This report provides an overview of a number of global horizontal irradiance (GHI) clear sky models from very simple to complex. Validation of clear-sky models requires comparison of model results to measured irradiance during clear-sky periods. To facilitate validation, we present a new algorithm for automatically identifying clear-sky periods in a time series of GHI measurements. We evaluate the performance of selected clear-sky models using measured data from 30 different sites, totaling about 300 site-years of data. We analyze the variation of these errors across time and location. In terms of error averaged over all locations and times, we found that complex models that correctly account for all the atmospheric parameters are slightly more accurate than other models, but, primarily at low elevations, comparable accuracy can be obtained from some simpler models. However, simpler models often exhibit errors that vary with time of day and season, whereas the errors for complex models vary less over time.

  2. Concordancia entre los porcentajes de grasa corporal estimados mediante el área adiposa del brazo, el pliegue del tríceps y por impedanciometría brazo-brazo

    Directory of Open Access Journals (Sweden)

    Martín Moreno Vicente

    2003-01-01

    Full Text Available Fundamento: La valoración del estado nutricional a partir de los miembros superiores es útil a nivel clínico. El objetivo de este trabajo es analizar el grado de acuerdo entre los porcentajes de grasa corporal (%GC estimados mediante el área adiposa del brazo (%GC BRAZO, la ecuación de Siri para el pliegue del tríceps (%GC TRÍCEPS y por bioimpedanciometría brazo-brazo (%GC BIA, así como con la ecuación de Siri para cuatro pliegues (%GC SIRI. Métodos: Estudio descriptivo transversal. Se valoró antropométricamente y por impedanciometría (Omron BF 300© a 145 personas (83 varones, 62 mujeres. La concordancia entre métodos se analizó mediante el coeficiente de correlación intraclase (CCI y el método de Bland-Altman. Resultados: el CCI entre %GC BRAZO-%GC TRÍCEPS fue de 0,8322 (intervalo de confianza al 95% 0,7672-0,8791; entre %GCB RAZO-%GC BIA de 0,7337 (0,6305-0,8080 y entre %GC TRICEPS-%GC BIA de 0,9290 (0,9015; 0,9488. Con el método de Bland-Altman el intervalo de concordancia entre %GC BRAZO-%GC TRÍCEPS (-11,2; 16,96 y entre %GC BRAZO-%GC BIA (-13,04; 21,76 superó el punto de corte (±10%, pero no entre %G CTRICEPS-%GC BIA (-6,64; 9,6, %GC SIRI-%GC TRÍCEPS (-5,27; 4,52 y %GC SIRI-%GC BIA (-6,31; 8,52. El IMC no influyó en el resultado. Conclusiones: El método utilizado influye en la valoración nutricional realizada a partir de los miembros superiores. El área adiposa del brazo sobreestima el %GC con relación a la ecuación de Siri para el pliegue del tríceps o para cuatro pliegues y a la impedanciometría, y aunque este resultado sugiere que el área adiposa del brazo puede no ser un indicador válido de la adiposidad global, este extremo deberá ser confirmado frente a una técnica patrón.

  3. Comparação do percentual de gordura obtido por bioimpedância, ultrassom e dobras cutâneas em adultos jovens / Comparison of the fat percentage obtained by bioimpedance, ultrasound and skinfolds in young adults

    Scientific Electronic Library Online (English)

    Eduardo Borba, Neves; Wagner Luis, Ripka; Leandra, Ulbricht; Adriana Maria Wan, Stadnik.

    2013-10-01

    Full Text Available OBJETIVO: Comparar o ultrassom (US) portátil e a bioimpedância elétrica (BIA) com as dobras cutâneas (DC) para estimar o percentual de gordura corporal em adultos. MÉTODOS: Foram avaliadas 195 militares, sexo masculino, sendo coletados: peso, estatura, percentual de gordura por bioimpedância, dobras [...] cutâneas e ultrassom (US) em nove pontos (tríceps, subescapular, bíceps, peitoral, médio axilar, abdominal, suprailíaca, coxa e panturrilha). Além da estatística descritiva, foram utilizados gráficos de dispersão, o teste Kolmogorov-Smirnov, coeficiente de correlação ? (rho) de Spearman, o Wilcoxon Signed Ranks Test e a regressão linear para a elaboração de uma nova equação para a estimativa do percentual de gordura corporal em adultos jovens (do sexo masculino). RESULTADOS: O grupo apresentou idade média de 23,07 ± 7,55 anos, para peso e estatura os valores da média e desvio padrão foram: 72,65 ± 10,40 kg; 1,74 ± 0,06 metros, respectivamente. Comparando os resultados entre US e DC, verificaram-se correlações significativas para todos os pontos avaliados, sendo a prega da coxa a com maior correlação, seguida pelo peitoral. Comparando-se os três métodos, o US apresentou melhor correlação com a BIA do que com as DC. Pode-se propor uma nova equação de estimativa do percentual de gordura por US, que apresentou uma melhor correlação com o método das DC do que aquela utilizada pelo próprio equipamento. CONCLUSÃO: Foi possível verificar que na população estudada o US e a BIA podem estimar o percentual de gordura corporal com boas correlações com o método da DC. Abstract in english INTRODUCTIONS E OBJECTIVE: To compare portable ultrasound (US) and bioimpedance analysis (BIA) with skinfolds (SF) to estimate body fat percentage in adults. METHODS: 195 military men were assessed and they had their weight, height, body fat by bioimpedance, skinfold in 9 points and ultrasound (US) [...] collected. Linear Regression was used for the development of a new equation for body fat percentage estimation in young adults (males). RESULTS: The group had mean age of 23.07 ± 7.55 years and height and weight with mean and standard deviation of 72.65 ± 10.40 kg, 1.74 ± 0.06 meters, respectively. Comparing the results between the US and SF, there was significant correlation for all points evaluated, with the thigh skinfold presenting the highest correlation, followed by the chest one. When the three methods are compared, the US presented better correlation with the BIA than with SF. A new equation for estimation of fat percentage by US can hence be proposed. CONCLUSIONS: It was noticed that in the studied population, US and BIA can estimate the body fat percentage with good correlations with the SF method.

  4. Composição corporal em mulheres com deficiência da 21-hidroxilase: comparação dos métodos antropométricos e de impedância bioelétrica em relação a um grupo controle Body composition in females with 21-hydroxylase deficiency: comparison of anthropometric methods and bioelectric impedance in relation to a control group

    Directory of Open Access Journals (Sweden)

    Ezequiel Moreira Gonçalves

    2010-03-01

    Full Text Available OBJETIVO: Estimar a composição corporal avaliada pela espessura de dobras cutâneas (EDC e pela impedância bioelétrica (BIA em um grupo de mulheres com hiperplasia adrenal congênita, forma clássica por deficiência da enzima 21-hidroxilase (HAC-C-D21OH e em relação ao um grupo controle. PACIENTES E MÉTODOS: Foram avaliadas 16 pacientes com HAC-C-D21OH e 26 controles, todas do sexo feminino, com idades de 8 a 18 anos. Foram estimadas as massas gorda (MG e magra (MM utilizando EDC e BIA. Os dados das MG e MM foram analisados de forma relativa (%, absoluta (kg e em relação à estatura (IMG e IMM. RESULTADOS: Não foram encontradas diferenças significativas entre os dois métodos em cada grupo avaliado. Em relação ao grupo controle, as pacientes com HAC-C-D21OH apresentaram valores maiores de MG (% BIA, IMG BIA e IMM EDC e menores de MM (% BIA. Foi verificada correlação positiva e alta em todos os parâmetros analisados. CONCLUSÃO: Os resultados observados pelos métodos de EDC e BIA foram semelhantes nesta amostra de mulheres com HAC-CD21OH, porém controversos em relação ao grupo controle, sugerindo que se tenha cautela no uso desses métodos de avaliação da composição corporal nessa população.OBJECTIVE: To estimate body composition by evaluating skinfold thickness (ST and electric bioimpedance (EB in a group of women with congenital adrenal hyperplasia due to classical 21-hydroxylase deficiency (CAH-C-21OHD in relation to a control group. SUBJECTS AND METHODS: Sixteen patients and 26 controls were evaluated, all female, with age varying from 8 to 18 years. Fat (FM and lean (LM masses were evaluated by ST and EB. FM and LM data were analyzed in relative (% and absolute (kg values, and in relation to stature (FMI and LMI. RESULTS: There were no observed significant differences between the two methods in each group. In relation to the control group, CAH-C-21OHD patients showed higher values for FM (% EB, FMI EB and LMI ST but lower values for FM (% EB. Positive and high correlation values were observed for all parameters analyzed. CONCLUSION: ST and EB results observed were similar in this sample of females with CAH-C-21OHD, but controversial in relation to the control group, suggesting caution when using these methods to evaluate body composition in this population.

  5. Composição corporal em mulheres com deficiência da 21-hidroxilase: comparação dos métodos antropométricos e de impedância bioelétrica em relação a um grupo controle / Body composition in females with 21-hydroxylase deficiency: comparison of anthropometric methods and bioelectric impedance in relation to a control group

    Scientific Electronic Library Online (English)

    Ezequiel Moreira, Gonçalves; Sofia Helena Valente de, Lemos-Marini; Maricilda Palandi de, Mello; Alexandre Duarte, Baldin; Wellington Roberto Gomes, Carvalho; Edson Santos, Farias; Gil, Guerra-Júnior.

    2010-03-01

    Full Text Available OBJETIVO: Estimar a composição corporal avaliada pela espessura de dobras cutâneas (EDC) e pela impedância bioelétrica (BIA) em um grupo de mulheres com hiperplasia adrenal congênita, forma clássica por deficiência da enzima 21-hidroxilase (HAC-C-D21OH) e em relação ao um grupo controle. PACIENTES E [...] MÉTODOS: Foram avaliadas 16 pacientes com HAC-C-D21OH e 26 controles, todas do sexo feminino, com idades de 8 a 18 anos. Foram estimadas as massas gorda (MG) e magra (MM) utilizando EDC e BIA. Os dados das MG e MM foram analisados de forma relativa (%), absoluta (kg) e em relação à estatura (IMG e IMM). RESULTADOS: Não foram encontradas diferenças significativas entre os dois métodos em cada grupo avaliado. Em relação ao grupo controle, as pacientes com HAC-C-D21OH apresentaram valores maiores de MG (%) BIA, IMG BIA e IMM EDC e menores de MM (%) BIA. Foi verificada correlação positiva e alta em todos os parâmetros analisados. CONCLUSÃO: Os resultados observados pelos métodos de EDC e BIA foram semelhantes nesta amostra de mulheres com HAC-CD21OH, porém controversos em relação ao grupo controle, sugerindo que se tenha cautela no uso desses métodos de avaliação da composição corporal nessa população. Abstract in english OBJECTIVE: To estimate body composition by evaluating skinfold thickness (ST) and electric bioimpedance (EB) in a group of women with congenital adrenal hyperplasia due to classical 21-hydroxylase deficiency (CAH-C-21OHD) in relation to a control group. SUBJECTS AND METHODS: Sixteen patients and 26 [...] controls were evaluated, all female, with age varying from 8 to 18 years. Fat (FM) and lean (LM) masses were evaluated by ST and EB. FM and LM data were analyzed in relative (%) and absolute (kg) values, and in relation to stature (FMI and LMI). RESULTS: There were no observed significant differences between the two methods in each group. In relation to the control group, CAH-C-21OHD patients showed higher values for FM (%) EB, FMI EB and LMI ST but lower values for FM (%) EB. Positive and high correlation values were observed for all parameters analyzed. CONCLUSION: ST and EB results observed were similar in this sample of females with CAH-C-21OHD, but controversial in relation to the control group, suggesting caution when using these methods to evaluate body composition in this population.

  6. Znaczenie wariantów polimorficznych wybranych genów w chorobie wie?cowej serca. Cz??? II: Polimorfizmy genów uk?adu renina-angiotensyna oraz glikoproteiny p?ytkowej IIIa

    Directory of Open Access Journals (Sweden)

    Marcin Grucha?a

    2001-06-01

    Full Text Available Choroba wie?cowa serca (chws podobnie jak wi?kszo?? powszechnych chorób wieku ?redniego (cukrzyca, nadci?nienie t?tnicze, schizofrenia i inne wykazuje natur? wieloczynnikow?, co oznacza, i? ujawnia si? ona na skutek wspó?dzia?ania czynników genetycznych i ?rodowiskowych. W niniejszym artykule przedstawiono wybrane zagadnienia dotycz?ce wariantów polimorficznych genów koduj?cych bia?ka uk?adu renina-angiotensyna oraz genu glikoproteiny p?ytkowej Ula. Produkty bia?kowe tych genów bior? udzia? w etiopatoge-nezie mia?d?ycy t?tnic wie?cowych, procesach trombogenezy i fibrynolizy oraz innych procesach istotnych dla rozwoju i przebiegu chws i jej powik?a?. Poznanie genetycznego pod?o?a schorze? uk?adu sercowo-naczyniowego mo?e mie? decyduj?ce znaczenie dla stworzenia racjonalnych podstaw profilaktyki i leczenia.

  7. Ten best resources for conducting financing and benefit incidence analysis in resource-poor settings.

    Science.gov (United States)

    Wiseman, Virginia; Asante, Augustine; Price, Jennifer; Hayen, Andrew; Irava, Wayne; Martins, Joao; Guinness, Lorna; Jan, Stephen

    2014-09-24

    Many low- and middle-income countries are seeking to reform their health financing systems to move towards universal coverage. This typically means that financing is based on people's ability to pay while, for service use, benefits are based on the need for health care. Financing incidence analysis (FIA) and benefit incidence analysis (BIA) are two popular tools used to assess equity in health systems financing and service use. FIA studies examine who pays for the health sector and how these contributions are distributed according to socioeconomic status (SES). BIA determines who benefits from health care spending, with recipients ranked by their relative SES. In this article, we identify 10 resources to assist researchers and policy makers seeking to undertake or interpret findings from financing and benefit incidence analyses in the health sector. The article pays particular attention to the data requirements, computations, methodological challenges and country level experiences with these types of analyses. PMID:25255919

  8. Biosensor immunoassay for the detection of eight sulfonamides in chicken serum

    OpenAIRE

    Haasnoot, W.; Bienenmann-ploum, M.; Kohen, F.

    2003-01-01

    A monoclonal antibody (MAb) raised against sulfamethazine (21C7) was applied in an optical biosensor (Biacore Q) to develop a rapid biosensor immunoassay (BIA) for the detection of several sulfonamides in chicken serum. The performance of this MAb was compared with two polyclonal antibodies (PAbs) raised against sulfamethazine (Qflex sulfamethazine binding protein (SBP) and RIKILT 464b). Using these PAbs, the limits of detection (LODs) in 10 times diluted chicken serum were approximately 30 n...

  9. Crystallization analysis of AlSi7Mg (AK 7) alloy with use of „ATND” method

    OpenAIRE

    T.Ciu?ka

    2007-01-01

    The paper presents results of non-ferrous metal crystallization research with use of ATND method. The research was carried out in the Faculty of Chipless Forming Technology, University of Bielsko-Bia?a. The new method of analysis of non-ferrous metals alloy crystallization assures complete picture of generated structural components of the alloy. Structural components defined in the tested alloy using ATND method have been verified by X-ray microanalysis, which unambiguously has confirmed thei...

  10. Can subject matter experts' ratings of statement extremity be used to streamline the development of unidimensional pairwise preference scales?

    OpenAIRE

    Stark, Stephen; Chernyshenko, Sasha; Guenole, Nigel

    2011-01-01

    Interest in on-demand noncognitive assessment has flourished due to advances in computer technology and studies demonstrating noteworthy predictive validities for organizational outcomes. Computerized adaptive testing (CAT) based on the Zinnes-Griggs (ZG) ideal point item response theory (IRT) model may hold promise for organizational settings, because a large pool of items can be created from a modest number of stimuli, and the items have been shown to be resistant to some types of rater bia...

  11. Remarks to the ecology of the boreo-montane polypore Amylocystis lapponica based on data from the Czech Republic and Poland

    OpenAIRE

    Jan Holec; TomᚠKu?era

    2007-01-01

    In the Czech Republic, the rare polypore Amylocystis lapponica continuously occurs in the Boubínský prales virgin forest (southern Bohemia: Šumava Mts.) where it has been documented for more than 60 years. Similarly, in Poland it has been known only from the Puszcza Bia?owieska virgin forest (northeastern Poland) for more than 50 years. Generally, it is considered a species of boreal coniferous forests of northern Europe (taiga) and montane coniferous forests in Central and Southern Europ...

  12. Phenotypic variation of Epipactis helleborine x E. atrorubens hybrids in anthropogenic conditions

    Directory of Open Access Journals (Sweden)

    Wojciech Adamowski

    2014-02-01

    Full Text Available Hybrid index has revealed the hybrid nature of helleborine populations growing on disturbed habitats in Bia?owie?a Forest and its western foreland. An analysis of eight traits has revealed that hybrids are morphologically more similar to E. helleborine. Hybrids differ from the typical E. helleborine first of all by: a very pubescent inflorescence axis, a considerable length of the subinflorescence internode. Also the range of phenotypical variation in these populations is shown.

  13. X-ray edge singularity of bilayer graphene

    OpenAIRE

    Lee, Hyun C.

    2010-01-01

    The X-ray edge singularity of bilayer graphene is studied by generalizing the path integral approach based on local action which was employed for monolayer graphene. In sharp contrast to the case of monolayer graphene, the bilayer graphene is found to exhibit the edge singularity even at half-filling and its characteristics are determined by interlayer coupling. At finite bias the singular behaviors sensitively depend on the relative magnitude of fermi energy and applied bia...

  14. A Multi-Stage Almost Ideal Demand System: the case of beef demand in Colombia

    OpenAIRE

    Rami?rez Hassan, Andre?s

    2012-01-01

    The main objective in this paper is to obtain reliable long-term and short-term elasticities estimates of the beef demand in Colombia using quarterly data since 1998 until 2007. However, complexity on the decision process of consumption should be taken into account, since expenditure on a particular good is sequential. In the case of beef demand in Colom- bia, a Multi-Stage process is proposed based on an Almost Ideal Demand System (AIDS). The econometric novelty in this pap...

  15. Direct biosensor immunoassays for the detection of nonmilk proteins in milk powder

    OpenAIRE

    Haasnoot, W.; Olieman, K.; Cazemier, G.; Verheijen, R.

    2001-01-01

    The low prices of some nonmilk proteins make them attractive as potential adulterants in dairy products. An optical biosensor (BIACORE 3000) was used to develop a direct and combined biosensor immunoassay (BIA) for the simultaneous detection of soy, pea, and soluble wheat proteins in milk powders. Affinity-purified polyclonal antibodies raised against the three protein sources were immobilized in different flow channels (Fcs) on the biosensor chip (CM5). Dissolved milk powders were injected (...

  16. Body composition and body fat distribution in relation to later risk of acute myocardial infarction: a Danish follow-up study

    DEFF Research Database (Denmark)

    Stegger, Jakob; Schmidt, E B

    2011-01-01

    Introduction:Obesity is a modifiable risk factor for acute myocardial infarction (MI), but lean body mass (LBM) may also be an important factor. Low LBM may increase the risk of MI and LBM may modify the effect of obesity on MI. Thus, the inability of the classical anthropometric measures to evaluate LBM may lead to misclassification of MI risk in both lean and obese persons. We investigated the associations between incident MI and bioelectrical impedance analyses (BIA) derived measures of body composition in combination with body mass index (BMI) and anthropometric measures of body fat distribution.Methods and results:From 1993 to 1997, 27?148 men and 29?863 women, aged 50 to 64 year, were recruited into the Danish prospective study Diet, Cancer and Health. During 11.9 years of follow-up we identified 2028 cases of incident MI (1487 men and 541 women). BMI, waist circumference (WC), hip circumference and BIA of body composition including body fat mass (BFM), body fat percentage and LBM were measured at baseline. We used Cox proportional hazard models with age as time axis and performed extensive control for confounding. Weight, BMI, classical estimates of abdominal obesity and BIA estimates of obesity showed significant positive associations with incident MI. However, BFM adjusted for WC showed no association. Low LBM was associated with a higher risk of incident MI in both genders, and high LBM was associated with a higher risk in men.Conclusion:Obesity was positively associated with MI. Estimates of obesity achieved by BIA seemed not to add additional information to classical anthropometric measures regarding MI risk. Both high and low LBM may be positively associated with MI.International Journal of Obesity advance online publication, 1 February 2011; doi:10.1038/ijo.2010.278.

  17. Fast-food restaurant advertising on television and its influence on youth body composition

    OpenAIRE

    Grossman , Michael; Tekin, Erdal; Wada, Roy

    2012-01-01

    We examine the effects of fast-food restaurant advertising on television on the body composition of adolescents as measured by percentage body fat (PBF) and to assess the sensitivity of these effects to using conventional measures of youth obesity based on body-mass index (BMI). We merge measures of body composition from bioelectrical-impedance analysis (BIA) and dual-energy x-ray absorptiometry (DXA) from the National Health and Nutrition Examination Survey with individual level data from th...

  18. Comparison of Nutritional Parameters among Adult and Elderly Hemodialysis Patients

    OpenAIRE

    Gülperi Çelik, Bahar Oc, Inci Kara, Mümtaz Y?lmaz, Ali Yuceaktas, Seza Apiliogullari

    2011-01-01

    Aim: The aim of this study was to compare the nutritional biochemical parameters, prealbumin levels, and bioimpedance analysis parameters of adult and elderly hemodialysis (HD) patients.Methods: This prospective cross-sectional study included 50 adult HD patients (42.0 % female). Nutritional status was assessed by post-dialysis multifrequency bioimpedance analysis (BIA), serum prealbumin and other nutritional biochemical parameters.Results: Mean age of patients was 57.4±15.1 years (range...

  19. Recent Electrochemical and Optical Sensors in Flow-Based Analysis

    Directory of Open Access Journals (Sweden)

    Nattakarn Wangfuengkanagul

    2006-10-01

    Full Text Available Some recent analytical sensors based on electrochemical and optical detectioncoupled with different flow techniques have been chosen in this overview. A briefdescription of fundamental concepts and applications of each flow technique, such as flowinjection analysis (FIA, sequential injection analysis (SIA, all injection analysis (AIA,batch injection analysis (BIA, multicommutated FIA (MCFIA, multisyringe FIA(MSFIA, and multipumped FIA (MPFIA were reviewed.

  20. Microfinance and markets: New results for the Besley-Coate group lending model

    OpenAIRE

    Arnold, Lutz; Reeder, Johannes; Steger, Susanne

    2009-01-01

    Microfinance currently experiences a huge inflow of private investors and a surge in the use of market instruments. This raises the question of what market equilibria in microfinance markets look like and which kinds of market failure tend to afflict them. The present paper conducts an equilibrium analysis of Besley and Coate’s (1995) group lending model with enforcement problems.We show that a consideration of repayment rates alone is not sufficient to predict market outcomes, as it is bia...

  1. Inexpensive Acoustoelectric Hydrophone For Mapping High Intensity Ultrasonic Fields

    OpenAIRE

    Witte, Russell S.; Hall, Tim; Olafsson, Ragner; Huang, Sheng-Wen; O’Donnell, Matthew

    2008-01-01

    We describe an inexpensive alternative to conventional hydrophones for measuring ultrasonic fields. The hydrophone, composed of common laboratory supplies, depends on the acoustoelectric (AE) effect, a well-known interaction between electrical current and pressure. Beam patterns of a 540 kHz annular transducer captured using a bowtie graphite hydrophone were consistent with patterns obtained using conventional, more expensive hydrophones. The AE signal was proportional to both the applied bia...

  2. Bias Adaptation for Vocal Tract Length Normalization

    OpenAIRE

    Saheer, Lakshmi; Yamagishi, Junichi; Garner, Philip N.; Dines, John

    2013-01-01

    Vocal tract length normalisation (VTLN) is a well known rapid adaptation technique. VTLN as a linear transformation in the cepstral domain results in the scaling and translation factors. The warping factor represents the spectral scaling parameter. While, the translation factor represented by bias term captures more speaker characteristics especially in a rapid adaptation framework without having the risk of over-fitting. This paper presents a complete and comprehensible derivation of the bia...

  3. Single biosensor immunoassay for the detection of five aminoglycosides in reconstituted skimmed milk

    OpenAIRE

    Haasnoot, W.; Cazemier, G.; Koets, M.; Amerongen, A.

    2003-01-01

    The application of an optical biosensor (Biacore 3000), with four flow channels (Fcs), in combination with a mixture of four specific antibodies resulted in a competitive inhibition biosensor immunoassay (BIA) for the simultaneous detection of the five relevant aminoglycosides in reconstituted skimmed milk. Four aminoglycosides (gentamicin, neomycine, kanamycin and a streptomycin derivative) were immobilised onto the sensor surface of a biosensor chip (CM5) in the four Fcs of the biosensor sy...

  4. Biaxial seismic behaviour of reinforced concrete columns

    OpenAIRE

    Rodrigues, H.; Varum, H.; Are?de, A.

    2013-01-01

    The present work focuses on the assessment of the structural response of RC columns under bidirectional horizontal loads in three main streamlines. First, an experimental testing campaign was performed on rectangular columns, for different types of loading. Subsequently, the tested columns were simulated with different non-linear modelling strategies. Finally, a simplified hysteretic model is proposed for the representation of the non-linear response of RC members subjected to bia...

  5. Análisis de la variación genética en clones de caucho (Hevea brasiliensis) de Asia, Suramérica y Centroamérica usando marcadores RAPD

    OpenAIRE

    Ce?sar Augusto, Herna?ndez R.; Afanador Kafuri Lucía; Arango Isaza Rafael; Lobo Arias Mario

    2006-01-01

    El caucho natural (Hevea brasiliensis) representa a especies potenciales para reforestación y programas de explo­tación comercial en ciudades tropicales como Colombia. La variabilidad genética de una colección de caucho que se encuentra en la Estación experimental de Paraguaycito en Buenavista, departamento del Quindio en Colom­bia fue estudiada para aumentar el conocimiento en cuanto a las especies y realizar un mejor uso de los árboles disponibles. Un total de 25 clones, seis de Sur...

  6. Análisis de la variación genética en clones de caucho (Hevea brasiliensis) de Asia, Suramérica y Centroamérica usando marcadores RAPD Analysis of genetic variation in clones of rubber (Hevea brasiliensis) from Asían, South and Central American origin using RAPDs markers

    OpenAIRE

    Lobo Arias Mario; Arango Isaza Rafael; Afanador Kafuri Lucía; Ce?sar Augusto, Herna?ndez R.

    2006-01-01

    El caucho natural (Hevea brasiliensis) representa a especies potenciales para reforestación y programas de explo­tación comercial en ciudades tropicales como Colombia. La variabilidad genética de una colección de caucho que se encuentra en la Estación experimental de Paraguaycito en Buenavista, departamento del Quindio en Colom­bia fue estudiada para aumentar el conocimiento en cuanto a las especies y realizar un mejor uso de los árboles disponibles. Un total de 25 clones, seis de Sur...

  7. The application of bioelectrical impedance analysis in live tropical hair sheep as a predictor of body composition upon slaughter.

    Science.gov (United States)

    Avril, Dean H; Lallo, Cicero; Mlambo, Victor; Bourne, Gregory

    2013-11-01

    Animal management for breeding and marketing can be improved by precise measurement of desirable traits. Live animal body composition analysis facilitates the selection of animals that are best suited for the intended purpose. This study was designed to assess the accuracy of bioelectrical impedance analysis (BIA) predicted live body tissue composition, as a proxy for the estimation of carcass quality in Barbados Black Belly lambs. Thirty-four Barbados Black Belly lambs were placed on an 8-week feeding regime and then slaughtered. A randomized experimental design was used to allocate diets to animals, which had been stratified into eight groups by initial live weight. The lambs were fed a basal diet of Brachiaria arrecta fresh forage ad libitum and subjected to one of four diets; NS-non-supplemented diet, TG-Trichantera gigantea-supplemented, C100-concentrate supplemented for maintenance, and C400-concentrate supplemented for growth. Diets NS, TG, C100, and C400 had 7, 9, 11, and 7 animals, respectively. The average age and weight at the time of slaughter were 206 days and 23.7 kg, respectively. A 4-terminal impedance analyzer (RJL Systems®) was used to generate BIA data from live animals immediately before slaughter. The chilled carcasses were then subject to chemical analysis for crude fat, crude protein, and dry matter. Live animal and carcass traits predicted by BIA included fat and fat-free mass, crude fat, crude protein, protein to fat ratio, and tissue distribution. Regression equations were developed from BIA data obtained from the live animal to predict all carcass composition traits measured. Bioelectrical impedance analysis generated favorable results as a practical application to carcass composition evaluation in live tropical hair sheep. PMID:23852279

  8. Body fat measurement by bioelectrical impedance and air displacement plethysmography: a cross-validation study to design bioelectrical impedance equations in Mexican adults

    OpenAIRE

    Valencia Mauro E.; Esparza-Romero Julián; Alemán-Mateo Heliodoro; Macias Nayeli

    2007-01-01

    Abstract Background The study of body composition in specific populations by techniques such as bio-impedance analysis (BIA) requires validation based on standard reference methods. The aim of this study was to develop and cross-validate a predictive equation for bioelectrical impedance using air displacement plethysmography (ADP) as standard method to measure body composition in Mexican adult men and women. Methods This study included 155 male and female subjects from northern Mexico, 20–5...

  9. Food Prices and Body Fatness among Youths

    OpenAIRE

    Grossman , Michael; Tekin, Erdal; Wada, Roy

    2013-01-01

    In this paper, we examine the effect of food prices on clinical measures of obesity, including body mass index (BMI) and percentage body fat (PBF) measures derived from bioelectrical impedance analysis (BIA) and dual energy x-ray absorptiometry (DXA), among youths ages 12 through 18. The empirical analyses employ data from various waves of the National Health and Nutrition Examination Survey (NHANES) merged with several food prices measured by county and year. This is the first study to consi...

  10. Crystallization analysis of AlMg (AG 10) alloy with use of ATND method

    OpenAIRE

    Ciu?ka T.

    2007-01-01

    The paper presents results of non-ferrous metal crystallization research with use of ATND method. The research was carried out in the Faculty of Chipless Forming Technology, University of Bielsko-Bia?a. The new method of analysis of non-ferrous metals alloy crystallization assures complete picture of generated structural components of the alloy. Structural components defined in the tested alloy using ATND method have been verified by X-ray microanalysis, which unambiguously has confirmed the...

  11. Assessment of body composition by dual-energy X-ray absorptiometry, bioimpedance analysis and anthropometrics in children : the Physical Activity and Nutrition in Children study

    DEFF Research Database (Denmark)

    Tompuri, Tuomo T; Lakka, Timo A

    2015-01-01

    We compared InBody720 segmental multifrequency bioimpedance analysis (SMF-BIA) with Lunar Prodigy Advance dual-energy X-ray absorptiometry (DXA) in assessment of body composition among 178 predominantly prepubertal children. Segmental agreement analysis of body compartments was carried out, and inter-relationships of anthropometric and other measures of body composition were defined. Moreover, the relations of different reference criteria for excess body fat were evaluated.

  12. Nowy mechanizm krzepni?cia krwi wywo?anego ?elazem – znaczenie w cukrzycy i jej powik?aniach

    OpenAIRE

    Lipinski, Boguslaw; Pretorius, Etheresia

    2012-01-01

    Fibrynogen (FBG) jest wielkocz?steczkowym bia?kiem osocza i prekursorem enzymatycznie wytwarzanej fibryny. Jak ostatnio wykazano, FBG mo?e by? równie? przekszta?cony w nierozpuszczalny fibrynopodobny polimer pod wp?ywem nieenzymatycznego dzia?ania rodników hydroksylowych (hydroxyl radicals – HR). Te wolne rodniki s? wytwarzane w wyniku reakcji mi?dzy wodorotlenowymi grupami wody a trójwarto?ciowymi jonami ?elaza, bez udzia?u jakiegokolwiek czynnika redoks. Intera...

  13. Uma análise da alocação de contratos futuros sobre commodities em portfólios diversificados

    OpenAIRE

    Rodrigo Lanna Franco da Silveira; Geraldo Sant'Ana de Camargo Barros

    2010-01-01

    O trabalho analisou o impacto da introdução dos contratos futuros agropecuários (de café arábica, soja, milho, açúcar cristal, etanol e boi gordo), negociados na Bolsa de Valores, Mercadorias e Futuros - BM&FBovespa, no risco e no retorno de uma carteira diversificada, composta por ações, títulos, ouro e dólar, entre agosto de 1994 e dezembro de 2007. Foram realizados estudos para o intervalo de tempo completo e para subdivisões de dois e três períodos, além de uma análise bia...

  14. DXA, bioelectrical impedance, ultrasonography and biometry for the estimation of fat and lean mass in cats during weight loss

    Directory of Open Access Journals (Sweden)

    Borges Naida C

    2012-07-01

    Full Text Available Abstract Background Few equations have been developed in veterinary medicine compared to human medicine to predict body composition. The present study was done to evaluate the influence of weight loss on biometry (BIO, bioimpedance analysis (BIA and ultrasonography (US in cats, proposing equations to estimate fat (FM and lean (LM body mass, as compared to dual energy x-ray absorptiometry (DXA as the referenced method. For this were used 16 gonadectomized obese cats (8 males and 8 females in a weight loss program. DXA, BIO, BIA and US were performed in the obese state (T0; obese animals, after 10% of weight loss (T1 and after 20% of weight loss (T2. Stepwise regression was used to analyze the relationship between the dependent variables (FM, LM determined by DXA and the independent variables obtained by BIO, BIA and US. The better models chosen were evaluated by a simple regression analysis and means predicted vs. determined by DXA were compared to verify the accuracy of the equations. Results The independent variables determined by BIO, BIA and US that best correlated (p?r2, 19 equations were selected (12 for FM, 7 for LM; however, only 7 equations accurately predicted FM and one LM of cats. Conclusions The equations with two variables are better to use because they are effective and will be an alternative method to estimate body composition in the clinical routine. For estimated lean mass the equations using body weight associated with biometrics measures can be proposed. For estimated fat mass the equations using body weight associated with bioimpedance analysis can be proposed.

  15. Weight-loss in overweight and obese women : models and methods to assess body composition changes

    OpenAIRE

    Minderico, Cla?udia Sofia Ferreira Correia

    2007-01-01

    This thesis derives from three scientific problems which resulted in the same number of scientific articles. The background and questions of this investigation are centre in the methodological area and body composition rules. The first problem analysed the accuracy of some laboratory and field methods available (DXA, BIA and Anthropometry) in assessing body composition changes in overweight and obese women after a 16 months weight loss program management using a four-component molecular model...

  16. Are oral protein supplements helpful in the management of malnutrition in dialysis patients?

    OpenAIRE

    Jeloka, T. K.; Dharmatti, G.; Jamdade, T.; Pandit, M

    2013-01-01

    A randomized study was planned to compare the effects of whey and egg albumin protein supplements in dialysis patients. Fifty adult patients were randomized to receive either whey protein or egg albumin as per their deficit calculated from K/DOQI recommendations. Actual intake was calculated from three-day dietary diary. Assessment of nutritional status was done by serum albumin and bioelectric impedance analysis (BIA). Repeat evaluation was done after 6 months. The mean initial intake of pro...

  17. Identifikace somatometrických a volemických zm?n bioimpedan?ními metodami.

    Czech Academy of Sciences Publication Activity Database

    Petr, M.; Kohlíková, E.; Navrátil, Tomáš

    Ústí nad Labem : BEST servis, 2011 - (Navrátil, T.; Barek, J.), s. 114-117 ISBN 978-80-254-9634-3. [Moderní elektrochemické metody /31./. Jet?ichovice (CZ), 23.05.2011-27.05.2011] R&D Projects: GA ?R GAP206/11/1638; GA AV ?R IAA400400806; GA MŠk(CZ) LC06063 Institutional research plan: CEZ:AV0Z40400503 Keywords : bioelectrical impendance analysis * multi-frequency BIA * body weight Subject RIV: CG - Electrochemistry

  18. Body composition : methods of measurement, normative values and clinical use

    OpenAIRE

    Genton Graf, Laurence

    2011-01-01

    Measurement of body composition is an important part of nutritional assessment. The low FFM associated with malnutrition has been associated with numerous infectious and noninfectious complications, increasing length of stay, morbidity and mortality. DXA and TBK are reference method for determination of FFM and BCM, but, as these methods are expensive and require extensive technique of the operator, we have focused especially on BIA, an easy, quick, safe and reliable bedside method to measure...

  19. Skeletal muscle mass reference curves for children and adolescents.

    OpenAIRE

    Mccarthy, Hd; Samani-radia, D.; Jebb, Sa; Prentice, Am

    2014-01-01

    BACKGROUND: Skeletal muscle is key to motor development and represents a major metabolic end organ that aids glycaemic regulation. OBJECTIVES: To create gender-specific reference curves for fat-free mass (FFM) and appendicular (limb) skeletal muscle mass (SMMa) in children and adolescents. To examine the muscle-to-fat ratio in relation to body mass index (BMI) for age and gender. METHODS: Body composition was measured by segmental bioelectrical impedance (BIA, Tanita BC418) in 1985 Caucasian ...

  20. Eco-Genetic Structure of Bacillus cereus sensu lato Populations from Different Environments in Northeastern Poland

    OpenAIRE

    Drewnowska, Justyna M.; Swiecicka, Izabela

    2013-01-01

    The Bacillus cereus group, which includes entomopathogens and etiologic agents of foodborne illness or anthrax, persists in various environments. The basis of their ecological diversification remains largely undescribed. Here we present the genetic structure and phylogeny of 273 soil B. cereus s.l. isolates from diverse habitats in northeastern Poland, with samplings acquired from the last European natural forest (Bia?owie?a National Park), the largest marshes in Europe (Biebrza National Pa...

  1. Proposed amendments to the Bankruptcy and Insolvency Act and Companies' Creditors Arrangement Act

    International Nuclear Information System (INIS)

    The proposed amendments to the Bankruptcy and Insolvency Act (BIA) and the Companies' Creditors Arrangement Act (CCAA), which would have a significant impact on creditors' rights and remedies when dealing with a petroleum industry insolvency, were explained. An explanation was presented for the structured procedures that should be followed for: (1) Directors' liability, (2) Protection given to trustees and receivers against pre-appointment corporate obligations, and (3) International insolvencies

  2. On the Blind Interference Alignment over Homogeneous Block Fading Channels

    CERN Document Server

    Zhou, Qing F

    2012-01-01

    Staggered fading pattern between different users is crucial to interference alignment without CSIT, or so-called blind interference alignment (BIA). This special fading structure naturally arises from heterogeneous block fading setting, in which different users experience independent block fading with different coherent times. Jafar et al. prove that BIA can be applied in some special heterogeneous block fading channels, which are formed naturally or constructed artificially. In this paper, we show that in the context of a 2-user 2x1 broadcasting (BC) channel, staggered fading pattern can also be found in homogeneous block fading setting, in which both users experience independent fading with the same coherent time; and we propose a scheme to achieve the optimal 4/3 DoF for the homogenous setting by using BIA. Applying the proposed scheme, we further study a 2x1 BC network with K users undergoing homogeneous block fading. When K>=4, we show it is almost guaranteed that the transmitter can find two users among...

  3. Concordancia entre los porcentajes de grasa corporal estimados mediante el área adiposa del brazo, el pliegue del tríceps y por impedanciometría brazo-brazo / Interchangeability among the Percentages of Body Fat Estimated by Mid-Arm Adipose Area, Triceps Skinfold Thickness and Arm-to-Arm Segmental Bioimpedance Analysis

    Scientific Electronic Library Online (English)

    Vicente, Martín Moreno; Juan Benito, Gómez Gandoy; María Jesús, Antoranz González; Agustín, Gómez de la Cámara.

    2003-06-01

    Full Text Available Fundamento: La valoración del estado nutricional a partir de los miembros superiores es útil a nivel clínico. El objetivo de este trabajo es analizar el grado de acuerdo entre los porcentajes de grasa corporal (%GC) estimados mediante el área adiposa del brazo (%GC BRAZO), la ecuación de Siri para e [...] l pliegue del tríceps (%GC TRÍCEPS) y por bioimpedanciometría brazo-brazo (%GC BIA), así como con la ecuación de Siri para cuatro pliegues (%GC SIRI). Métodos: Estudio descriptivo transversal. Se valoró antropométricamente y por impedanciometría (Omron BF 300©) a 145 personas (83 varones, 62 mujeres). La concordancia entre métodos se analizó mediante el coeficiente de correlación intraclase (CCI) y el método de Bland-Altman. Resultados: el CCI entre %GC BRAZO-%GC TRÍCEPS fue de 0,8322 (intervalo de confianza al 95% 0,7672-0,8791); entre %GCB RAZO-%GC BIA de 0,7337 (0,6305-0,8080) y entre %GC TRICEPS-%GC BIA de 0,9290 (0,9015; 0,9488). Con el método de Bland-Altman el intervalo de concordancia entre %GC BRAZO-%GC TRÍCEPS (-11,2; 16,96) y entre %GC BRAZO-%GC BIA (-13,04; 21,76) superó el punto de corte (±10%), pero no entre %G CTRICEPS-%GC BIA (-6,64; 9,6), %GC SIRI-%GC TRÍCEPS (-5,27; 4,52) y %GC SIRI-%GC BIA (-6,31; 8,52). El IMC no influyó en el resultado. Conclusiones: El método utilizado influye en la valoración nutricional realizada a partir de los miembros superiores. El área adiposa del brazo sobreestima el %GC con relación a la ecuación de Siri para el pliegue del tríceps o para cuatro pliegues y a la impedanciometría, y aunque este resultado sugiere que el área adiposa del brazo puede no ser un indicador válido de la adiposidad global, este extremo deberá ser confirmado frente a una técnica patrón. Abstract in english Background: Assessing nutritional status based on the upper limbs is useful at the clinical level. The aim of this study is to evaluate the agreement degree of the body fat percentages (%BF) estimated by the mid-arm adipose area (%BF ARM), the Siri triceps skinfold equation (%BF TRICEPS) and the arm [...] -to-arm segmental bioimpedance analysis (%BF BIA), as well as the Siri four-skinfold equation (%BF SIRI), assessing their interchangeability. Methods: A cross-sectional study. Body fat assessments were made on a total of 145 subjects (83 males, 62 females) anthropometrically and by bioelectrical impedance analysis (Omron BF 300Ó). The agreement between methods were analyzed using the interclass correlation coefficient (ICC) and the Bland-Altman method. Results: The ICC between %BF ARM and %BF TRÍCEPS was 0.8322 (CI 95% 0.7672-0.8791); between %BF ARM-%BF BIA 0.7337 (0.6305-0.8080) and between %BF TRICEPS-%BF BIA 0.9290 (0.9015; 0.9488). For the Bland-Altman method, the agreement interval between %BF ARM-%BF TRÍCEPS (-11.2; 16.96) and between %BF ARM-%BF BIA (-13.04; 21.76) exceeded the cutoff point (±10%), but not between %BF TRICEPS-%BF BIA (-6.64; 9.6), %BF SIRI-%BF TRÍCEPS (-5.27; 4.52) and %BF SIRI-%BF BIA (-6.31; 8.52). The BMI has no bearing on the results. Conclusions: The method utilized influences the nutritional assessment made based on the upper limbs. The mid-arm adipose area method overestimated the %BF with relationship to the Siri triceps skinfold or four-skinfold equation and to the bioelectrical impedance analysis, and although this result suggests that mid-arm adipose area may not be a good indicator of global adiposity, this must be confirmed against a gold standard.

  4. Prediction of fat-free body mass from bioelectrical impedance among 9- to 11-year-old Swedish children

    DEFF Research Database (Denmark)

    Nielsen, Birgit Marie; Dencker, M

    2007-01-01

    AIM: Predictive equations for estimating body composition from bioelectrical impedance analysis (BIA) among Scandinavian children are lacking. In the present study, equations for estimation of fat-free body mass (FFM) and lean tissue mass (LTM) were developed and cross-validated from BIA using dual-energy X-ray absorptiometry (DXA) as the reference measurement of body composition. METHODS: The study population consisted of 49 girls and 52 boys aged 9-11 years from Malmö, Sweden. Bioelectrical impedance was measured between hand and foot at 50 kHz. Predictive equations were developed by multiple linear regression and cross-validated against DXA measurements of body composition. RESULTS: FFM was predicted from BIA and anthropometric variables with an adjusted R(2)= 0.95 and root mean square error (RMSE) = 0.84 kg, and LTM was predicted with an adjusted R(2)= 0.95 and RMSE = 0.87 kg. Cross-validation revealed a mean RMSE = 0.95 kg FFM and a mean RMSE = 0.96 kg LTM. Prediction of body composition from equationsdeveloped in previous literature was mixed when applied to the present cohort of children. CONCLUSIONS: FFM and LTM are predicted with sufficient accuracy at the population level. We recommend that the predictive equations developed in the present study are used in prepubescent European children aged 9-11 years only in order to minimize confounding of results because of possible differences in population samples.

  5. Nadci?nienie t?tnicze w ci??y - patofizjologia i aktualna klasyfikacja

    Directory of Open Access Journals (Sweden)

    Iwonna Grzywanowska-?aniewska

    2011-09-01

    Full Text Available Nadci?nienie t?tnicze (nt komplikuje przebieg oko?o 5-15% wszystkich ci??, stanowi?c jedn? z g?ównych przyczyn chorobowo?ci i ?miertelno?ci, zarówno matek, jak i p?odów/noworodków. Kryteria rozpoznania nt w ci??y to RRs => 140 mmHg i/lub RRr => 90 mmHg. Klasyfikacja nt w ci??y obejmuje cztery postaci: 1. uprzednio wyst?puj?ce nt, 2. nt indukowane ci??? - pojawiaj?ce si? po 20 tygodniu ci??y, przebiegaj?ce z bia?komoczem lub bez, 3. uprzednio wyst?puj?ce nt z na?o?onym nt wywo?anym ci??? z bia?komoczem, 4. nt nie daj?ce si? sklasyfikowa? przed porodem. Wyj?tkowo gro?n? postaci? nt w ci??y jest nadci?nienie wywo?ane ci??? przebiegaj?ce z bia?komoczem => 300 mg/dob?; nosi ono nazw? stanu przedrzucawkowego, a jego szczególne postaci - zespó? HELLP i rzucawka - stanowi? zagro?enia dla ?ycia matki i p?odu. Opieka nad ci??arn? z nt obejmuje ?cis?e monitorowanie (diagnostyka stanu przedrzucawkowego i jego powik?a?, leczenie niefarmakologiczne oraz farmakoterapi?, a tak?e ustalenie optymalnego momentu zako?czenia ci??y. W okresie po?ogu pacjentki nadal wymagaj? nadzoru a rozpoznanie nt ulega weryfikacji i ewentualnemu dalszemu leczeniu.

  6. Nadci?nienie t?tnicze w ci??y - diagnostyka i leczenie

    Directory of Open Access Journals (Sweden)

    Iwonna Grzywanowska-?aniewska

    2012-03-01

    Full Text Available Nadci?nienie t?tnicze (NT komplikuje przebieg ok. 5-10% wszystkich ci??, stanowi?c jedn? z g?ównych przyczyn chorobowo?ci i ?miertelno?ci, zarówno matek, jak i p?odów/noworodków. Kryteria rozpoznania NT w ci??y to RRs?140 mmHg i/lub RRr?90 mmHg. Klasyfikacja NT w ci??y obejmuje 4 postaci: 1 uprzednio wyst?puj?ce NT; 2 NT indukowane ci??? - pojawiaj?ce si? po 20 tygodniu ci??y, przebiegaj?ce z bia?komoczem lub bez; 3 uprzednio wyst?puj?ce NT z na?o?onym NT wywo?anym ci??? z bia?komoczem; 4 NT niedaj?ce si? sklasyfikowa? przed porodem. Wyj?tkowo gro?n? postaci? NT w ci??y jest nadci?nienie wywo?ane ci??? przebiegaj?ce z bia?komoczem ?500 mg/dob?; nosi ono nazw? stanu przedrzucawkowego, a jego szczególne postaci - zespó? HELLP i rzucawka - stanowi? zagro?enie dla ?ycia matki i p?odu. Opieka nad ci??arn? z NT obejmuje ?cis?e monitorowanie (diagnostyka stanu przedrzucawkowego i jego powik?a?, leczenie niefarmakologiczne oraz farmakoterapi?, a tak?e ustalenie optymalnego momentu zako?czenia ci??y. W okresie po?ogu pacjentki nadal wymagaj? nadzoru, a rozpoznanie NT jest weryfikowane i podlega ewentualnemu dalszemu leczeniu.

  7. Effect of Influenza-Induced Fever on Human Bioimpedance Values

    Science.gov (United States)

    Marini, Elisabetta; Buffa, Roberto; Contreras, Monica; Magris, Magda; Hidalgo, Glida; Sanchez, Wilmer; Ortiz, Vanessa; Urbaez, Maryluz; Cabras, Stefano; Blaser, Martin J.; Dominguez-Bello, Maria G.

    2015-01-01

    Background and Aims Bioelectrical impedance analysis (BIA) is a widely used technique to assess body composition and nutritional status. While bioelectrical values are affected by diverse variables, there has been little research on validation of BIA in acute illness, especially to understand prognostic significance. Here we report the use of BIA in acute febrile states induced by influenza. Methods Bioimpedance studies were conducted during an H1N1 influenza A outbreak in Venezuelan Amerindian villages from the Amazonas. Measurements were performed on 52 subjects between 1 and 40 years of age, and 7 children were re-examined after starting Oseltamivir treatment. Bioelectrical Impedance Vector Analysis (BIVA) and permutation tests were applied. Results For the entire sample, febrile individuals showed a tendency toward greater reactance (p=0.058) and phase angle (p=0.037) than afebrile individuals, while resistance and impedance were similar in the two groups. Individuals with repeated measurements showed significant differences in bioimpedance values associated with fever, including increased reactance (p<0.001) and phase angle (p=0.007), and decreased resistance (p=0.007) and impedance (p<0.001). Conclusions There are bioelectrical variations induced by influenza that can be related to dehydration, with lower extracellular to intracellular water ratio in febrile individuals, or a direct thermal effect. Caution is recommended when interpreting bioimpedance results in febrile states. PMID:25915945

  8. Regulation of the alkaloid biosynthesis by miRNA in opium poppy.

    Science.gov (United States)

    Boke, Hatice; Ozhuner, Esma; Turktas, Mine; Parmaksiz, Iskender; Ozcan, Sebahattin; Unver, Turgay

    2015-04-01

    Opium poppy (Papaver somniferum) is an important medicinal plant producing benzylisoquinoline alkaloids (BIA). MicroRNAs (miRNAs) are endogenous small RNAs (sRNAs) of approximately 21 nucleotides. They are noncoding, but regulate gene expression in eukaryotes. Although many studies have been conducted on the identification and functions of plant miRNA, scarce researches on miRNA regulation of alkaloid biosynthesis have been reported. In this study, a total of 316 conserved and 11 novel miRNAs were identified in opium poppy using second-generation sequencing and direct cloning. Tissue-specific regulation of miRNA expression was comparatively analysed by miRNA microarray assays. A total of 232 miRNAs were found to be differentially expressed among four tissues. Likewise, 1469 target transcripts were detected using in silico and experimental approaches. The Kyoto Encyclopedia of Genes and Genomes pathway analyses indicated that miRNA putatively regulates carbohydrate metabolism and genetic-information processing. Additionally, miRNA target transcripts were mostly involved in response to stress against various factors and secondary-metabolite biosynthesis processes. Target transcript identification analyses revealed that some of the miRNAs might be involved in BIA biosynthesis, such as pso-miR13, pso-miR2161 and pso-miR408. Additionally, three putatively mature miRNA sequences were predicted to be targeting BIA-biosynthesis genes. PMID:25735537

  9. Body composition in heavy smokers: comparison of segmental bioelectrical impedance analysis and dual-energy X-ray absorptiometry.

    Science.gov (United States)

    Rom, O; Reznick, A Z; Keidar, Z; Karkabi, K; Aizenbud, D

    2015-01-01

    Smokers tend to have lower body mass index, on one hand, and increased abdominal obesity, on the other hand. Also, low levels of lean mass (LM) and bone mineral content (BMC) were found among older smokers compared with non-smokers. This altered body composition and its consequences raise the need for simple and reliable methods for assessment of body composition in smokers. This study aimed to compare body composition assessment by segmental bioelectrical impedance analysis (sBIA) with the reference method, dual energy X-ray absorptiometry (DEXA). Body composition was measured by sBIA (Tanita BC-545) and DEXA (Hologic) in 49 heavy smokers (>15 cigarettes/day, mean age 43.8±12.0). The comparison included correlations and differences between measurements obtained using the two methods as well as the Blande-Altman analysis. Whole-body fat mass (FM) and LM measured by the two methods were found to be highly correlated (r>0.9, p0.9, pappendicular FM percentage. Verified by DEXA, sBIA provides reliable measures of whole-body LM, FM, and trunk FM in heavy smokers. A lesser degree of agreement was found for BMC, appendicular LM, and FM. PMID:25315614

  10. Southpoint power plant final environmental impact statement

    International Nuclear Information System (INIS)

    This document is the Final Environmental Impact Statement (FEIS) for a proposed lease of acreage on the Fort Mojave Indian Reservation in Mohave County, Arizona for development of a natural gas fired 500 megawatt combined cycle power plant. The Bureau of Indian Affairs (BIA) serves as the federal lead agency and the Fort Mojave Indian Tribe (FMIT) and the Western Area Power Administration (WAPA) are cooperating agencies for the EIS process. The purpose of this document is to provide information to the public and to interested public agencies regarding the environmental consequences of the approval of a long-term lease for the construction and operation of the proposed Southpoint power plant. The FEIS, prepared by Hallock/Gross, Inc. under the direction of the BIA and in cooperation with the FMIT and WAPA, addresses the comparative analysis of alternatives and evaluates the environmental consequences of such alternatives on various resources and addresses public comments. A number of technical reports were used in the preparation of the Draft EIS and FEIS and are available for review as Appendices to this document under separate cover that can be reviewed at the BIA offices which are listed

  11. Ocena zale?no?ci mi?dzy zawarto?ci? keratyny a podatno?ci? paznokci na zaka?enia grzybicze - badania wst?pne

    Directory of Open Access Journals (Sweden)

    Ma?gorzata Gawlik

    2005-09-01

    Full Text Available Wprowadzenie: Keratyna - podstawowy budulec p?ytki paznokcia - stanowi? mo?e tak?e dogodny materia? do rozwoju niektórych patogennych grzybów. Do najcz?stszych zaka?e? grzybiczych paznokci nale?y zaka?enie dermatofitami i grzybami dro?d?opodobnymi. Cel pracy: Celem pracy by?a próba oceny zale?no?ci mi?dzy zawarto?ci? keratyny w paznokciach a stopniem ich zaka?alno?ci grzybami T. menta-grophytes i C. albicans. Materia? i metody: Opi?ki paznokciowe pochodz?ce od 18 zdrowych m??czyzn w wieku od 25 do 49 lat, osobno ze stóp i r?k, zaka?ano metod? ex vivo grzybami T. mentagrophytes i C. albicans. Podatno?? paznokci na zaka?enie oceniano ilo?ci? strz?pek grzybni wnikaj?cych do fragmentów opi?ków paznokciowych. Keratyn? paznokci ekstrahowano za pomoc?200 mmol/l merkaptoetanolu i w uzyskanym ekstrakcie oznaczano ca?kowity poziom bia?ka, które w 80% stanowi twarda keratyna, charakterystyczna dla paznokci. Jako?ciowo keratyn? scharakteryzowano z zastosowaniem jednokierunkowej elektroforezy w ?elu poliakrylamidowym. Wyniki: Paznokcie r?k, pochodz?ce od 8 ochotników, oraz paznokcie stóp, pochodz?ce od 7 osób, uleg?y intensywnemu zaka?eniu grzybem T. mentagrophytes. Brakzaka?enia tym grzybem stwierdzono w 3 przypadkach paznokci raki 2 paznokci stóp. Pozosta?e paznokcie uleg?y s?abemu zaka?eniu tym grzybem. Wszystkie badane paznokcie uleg?y zaka?eniu C. albicans, przy czym intensywnemu - 13 paznokci r?k i 16 paznokci stóp. Obrazy elektroforetyczne keratyn wszystkich paznokci stóp i r?k nie wykaza?y zró?nicowania jako?ciowego i przedstawia?y 2 podstawowe pasma bia?ek o masie cz?steczkowej 60 i 45 kDa. Ró?nice dotyczy?y zmian ilo?ciowych. Zakres st??enia bia?ka wynosi? od 1 do 81 ug/mg paznokcia. Omówienie: W grupie paznokci r?kzaka?onych T. mentagrophytes i C. albicans nie stwierdzono zale?no?ci mi?dzy st??eniem bia?ka a podatno?ci? na zaka?enie. Zale?no?ci takie, cho? nieistotne statystycznie, zaobserwowano w grupie paznokci stóp. Wraz ze wzrostem st??enia bia?ka mala?a intensywno?? zaka?enia T. mentagrophytes, ros?a natomiast intensywno?? zaka?enia C. albicans.

  12. Gasto energético de adultos brasileños saludables: una comparación de métodos / Energy expenditure of healthy brazilian adults: a comparison of methods

    Scientific Electronic Library Online (English)

    F. C., Esteves de Oliveira; A. C. de, Mello Cruz; C., Gonçalves Oliveira; A. C., Rodrigues Ferreira Cruz; V., Mayumi Nakajima; J., Bressan.

    2008-12-01

    Full Text Available Hay diversos métodos disponibles para medir el consumo de energía en el ser humano. Debido al alto costo y pequeño número de laboratorios capaces de utilizar la calorimetría directa y la técnica del agua doblemente marcada, se ha realizado un número relativamente pequeño de mediciones del gasto ener [...] gético utilizándose estos métodos. Así, cada día más, los investigadores se atienen en alto grado a los métodos de calorimetría indirecta (CI) y bioimpedancia eléctrica (BIA) y los clínicos a las ecuaciones de predicción para calcular los requerimientos de energía total en sus estudios y pacientes respectivamente. Objetivo: Evaluar el Gasto Energético Basal (GEB) y el Gasto Energético Total (GET) de individuos saludables comparando los resultados de CI, BIA y ecuaciones predictivas con los de requerimiento estimado de energía (EER), Fleisch, FAO/WHO/UNU 1985 y 2001. Material y métodos: Se evaluó el gasto energético en 81 individuos de ambos sexos por CI y BIA. De estos, fueron calculados el GEB por las ecuaciones FAO/WHO/UNU 1985 y 2001 y el GET por EER, Fleisch y FAO/WHO/UNU 1985 y 2001. Los datos se analizaron con el programa Sigma Stat for Windows versión 2.03 y se utilizó eltest de Dunn's para la comparación de las medianas obtenidas por los métodos y ecuaciones (p Abstract in english There are many available methods to measure the human energy consumption. Due to the high cost and small number of laboratories able to perform it, the direct calorimetry and doubly labeled water technique are rarely used to measure the energy expenditure. As consequence, there is an increase use of [...] the indirect calorimetry and bioelectrical impedance analysis methods by researchers and predictive equations by physicians to calculate the total energy requirements in research and in clinic. Objective: To evaluate the basal energy expenditure (GEB) and total energy expenditure (GET) of healthy subjects comparing results of indirect calorimetry (CI), bioelectrical impedance analysis (BIA) and predictive equations such as estimated energy requirements (EER), Fleish, FAO/WHO/UNU 1985 and 2001. Material and methods: It was evaluated the energy expenditure in 81 subjects of both gender by CI and BIA. Of these, the GEB by predictive equations FAO/WHO/UNU 1985 and 2001 and the GET by EER, Fleisch and FAO/WHO/UNU 1985 and 2001 were calculated. The data was analyzed with the software Sigma Stat for Windows version 2.03 and Dunn's test was used for comparison of mean obtained with methods and equations (p

  13. Entropy function from the gravitational surface action for an extremal near horizon black hole

    CERN Document Server

    Majhi, Bibhas Ranjan

    2015-01-01

    It is often argued that all the information of a gravitational theory is encoded in the surface term of the action; which means one can find several physical quantities just from the surface term without incorporating the bulk part of the action. This has been observed in various instances; e.g. derivation of the Einstein's equations, surface term calculated on the horizon leads to entropy, etc. Here I investigate the role of it in the context of entropy function and entropy of extremal near horizon black holes. Considering only the Gibbons-Hawking-York (GHY) surface term to define an entropy function for the extremal near horizon black hole solution, it is observed that the extremization of such function leads to the exact value of the horizon entropy. This analysis again supports the previous claim that there exists a "holographic" nature in the gravitational action - surface term contains the information of the bulk.

  14. Quantification of polynuclear aromatic hydrocarbons in industrial waste water using temperature programmed capillary gas chromatography

    International Nuclear Information System (INIS)

    Polynuclear aromatic hydrocarbons PAHs have been quantified in waste water of industrialized area of Kalashahkaku (Lahore, Pakistan). The PAHs were isolated from waste water by solvent extraction using dichloromethane (DCM) as extractant. After sample clean-up step and volume reduction under vacuum, the separation of PAHs concentrate into individual constituents is achieved by gas chromatography using flame ionization detector (FID). Mostly high molecular weight PAHs namely pyrene, benzo (a) anthracene, chrysene, benzo (K) fluoranthene, benzo (a) pyrene, benzo (ghi) perylene, indeno (1,2,3 cd) pyrene and coronene have been detected ranging from 41.1 g/l for benzo (a) anthracene to 85.0 g/l for benzo (K) fluoranthene. (author)

  15. The persistence of polynuclear aromatic hydrocarbons in sewage sludge-amended agricultural soils

    International Nuclear Information System (INIS)

    In 1968 five metal enriched sewage sludges containing different concentrations of polynuclear aromatic hydrocarbons (PAHs) were applied to different plots on field soils at two experimental sites, Luddington and Lee Valley in the UK. This resulted in substantial increases in soil ?PAH concentrations in all plots. Since application compound specific losses have occurred, with the high molecular weight PAHs being more persistent. Calculated half-lives range from under 2 years for naphthalene to over 9 years for benzo[ghi]perylene and coronene. The loss of PAH compounds in these field experiments can be related, in part, to certain physico-chemical properties, namely water solubility and the octanol:water partition coefficients. 20 refs., 3 figs., 1 tab

  16. Novel Nitro-PAH Formation from Heterogeneous Reactions of PAHs with NO2, NO3/N2O5, and OH Radicals: Prediction, Laboratory Studies and Mutagenicity

    OpenAIRE

    Jariyasopit, Narumol; Intosh, Melissa Mc; Zimmermann, Kathryn; Arey, Janet; Atkinson, Roger; Cheong, Paul Ha-yeon; Carter, Rich G.; Yu, Tian-wei; Dashwood, Roderick H.; Simonich, Staci L. Massey

    2013-01-01

    The heterogeneous reactions of benzo[a]pyrene-d12 (BaP-d12), benzo[k]fluoranthene-d12 (BkF-d12), benzo[ghi]perylene-d12 (BghiP-d12), dibenzo[a,i]pyrene-d14 (DaiP-d14), and dibenzo[a,l]pyrene (DalP) with NO2, NO3/N2O5, and OH radicals were investigated at room temperature and atmospheric pressure in an indoor Teflon chamber and novel mono NO2-DaiP, and mono NO2-DalP products were identified. Quartz fiber filters (QFF) were used as a reaction surface and the filter extracts were analyzed by GC/...

  17. Hydrogen and fuel cell activity report - France 2010

    International Nuclear Information System (INIS)

    The report gathers the main outstanding facts which occurred in France in the field of hydrogen and fuel cells in 2010. After having noticed some initiatives (the Grenelle II law, an investment package, the new role of the CEA, the new role of the IFP), the report presents several projects and programs regarding hydrogen: ANR programs, creation of a national structure (the HyPaC platform), regional initiatives and local actions, colloquiums and meetings in France and in the world, research projects (photo-synthesis as a new electric energy source), a technical-economic investigation (HyFrance3), demonstrator projects (the Althytude project by GDF and Suez, the Plathee hybrid locomotive by the SNCF, the H2E project, the Zero CO2 sailing boat, and the Myrte project), educational applications, activity in small and medium-sized enterprises (CETH, SAGIM, HYCAN, McPhy, N-GHY).

  18. Actors of the hydrogen sector in France

    International Nuclear Information System (INIS)

    This document proposes brief presentations (web site address, activities) of actors operating in the hydrogen sector in France. These actors are public actors who can be incentive or financing actors (ADEME, ANR) or research institutions (CNRS, CEA, university and engineering schools, IFP, INERIS, INRETS), private actors like industrial groups (Air Liquide, AREVA, GDF Suez, Total, PSA Peugeot Citroen, Renault, Saint-Gobain, SNECMA, ST Microelectronics, 3M, Veolia Environnement) or small companies (Alca Torda Applications, Axane, CETH2, Helion, MaHytec, N-GHY, PaxiTech, Sertronic, ULLIT). It also presents the HyPAC platform created by the AFH2 and ADEME), the AFH2 (the French Association for Hydrogen), and regional initiatives

  19. THE COST OF FOOD SECURITY VS. THE COST OF 'NO FOOD SECURITY’

    Directory of Open Access Journals (Sweden)

    Harvinder Kaur

    2014-04-01

    Full Text Available Widespread Hunger and Malnutrition is highly prevalent in India. It should be a subject of shame for every Indian. The cost benefit analysis of National Food Security Bill has been attempted in this paper. Is this a necessity for the economy like India where widespread Hunger and malnutrition is a major problem? According to GHI India's rank is 63rd out of 78 countries. Different cost estimates of Food Security Bill and the cost of 'no food security' have been compared.FSB is the need of the hour but it will dwindle our Fiscal deficit. Research is needed to be done so as to minimize the cost of FSB. History proves that when the people are secure and have enough to feed themselves, they are the useful productive members of the economy. Even the rich countries also spends on the basic needs of their people.

  20. Annual variation of total suspended particulate and associated polycyclic aromatic hydrocarbons in the tropical city of Niterói, RJ, Brazil

    Scientific Electronic Library Online (English)

    Fernanda de Melo, Lima; Annibal D., Pereira Netto.

    Full Text Available Este artigo apresenta os resultados da determinação de 12 hidrocarbonetos policíclicos aromáticos (HPAs) em material particulado atmosférico (MPA) coletado na cidade de Niterói, RJ, Brasil. Amostras quinzenais de MPA foram coletadas durante 24 h, entre junho/2005 e maio/2006, no Campus da Universida [...] de Federal Fluminense, localizado em uma área residencial e comercial no Centro de Niterói. Um amostrador de grandes volumes e filtros de fibra de vidro foram usados na coleta de MPA. A concentração média de MPA foi 87 µg m-3. HPAs foram determinados por cromatografia líquida de alta eficiência e detecção por fluorescência após extração em banho de ultra-som. Os limites de detecção e de quantificação foram suficientemente baixos para permitir a detecção dos HPAs nas faixas de concentração observadas. Boas recuperações foram obtidas pela análise do material certificado SRM 1649a (NIST, USA). Fenantreno, benzo[a]antraceno, benzo[b]fluoranteno e benzo[ghi]perileno foram os HPAs predominantes. As concentrações dos HPAs individuais variaram entre 0,001 (antraceno) e 0,357 (fenantreno) ng m-3. As concentrações totais de HPAs variaram entre 0,141 e 1,235 ng m-3. As concentrações individuais e totais de HPAs não apresentaram correlação significativa com a temperatura, umidade relativa e a velocidade do vento. As razões fluoranteno/(fluoranteno + pireno) e benzo[ghi]perileno/indeno[1,2,3-cd]pireno indicaram que a principal fonte de HPAs na área estudada é a emissão veicular. Abstract in english This paper reports the determination of twelve polycyclic aromatic hydrocarbons (PAHs) in total suspended particulate (TSP) collected in Niterói City, RJ, Brazil. Bimonthly 24 h TSP samples were collected between June/2005 and May/2006 in the Campus of Federal Fluminense University that is located i [...] n a mixed residential and commercial neighbourhood in Niterói City Center, Rio de Janeiro State, Brazil. A high volume sampler and glass fibber filters were used to TSP sampling. A mean TSP concentration of 87 µg m-3 was found. PAHs were determined by high-performance liquid chromatography with fluorescence detection following ultrasonic extraction. Limits of detection and of quantification were sufficiently low to accomplish PAH determination in the observed concentration ranges. Good PAH recoveries were obtained by analysis of SRM 1649a (NIST, USA). Phenanthrene, benzo[a]anthracene, benzo[b]fluoranthene and benzo[ghi]perylene were the predominating PAHs. Individual PAH concentrations varied between 0.001 (anthracene) and 0.357 (phenanthrene) ng m-3. Total PAH concentrations varied between 0.141 and 1.235 ng m-3. Individual and total PAH concentrations were not correlated with temperature, relative humidity or wind velocity. The ratios fluoranthene/(fluoranthene + pyrene) and benzo[ghi]perylene/indene[1,2,3-cd]pyrene indicated the main source of PAHs in the studied area was vehicular emission.

  1. Supercritical fluid extraction of polycyclic aromatic hydrocarbons from liver samples and determination by HPLC-FL

    Energy Technology Data Exchange (ETDEWEB)

    Gonzalez Amigo, S.; Garcia Falcon, M.S.; Lage Yusty, M.A.; Simal Lozano, J. [Department of Analytical Chemistry, Nutrition and Bromatology, Area of Nutrition and Bromatology, Faculty of Pharmacy, University of Santiago de Compostela, 15706 Santiago de Compostela (Spain)

    2000-07-01

    An extraction/clean-up procedure by SFE was developed for isolating PAHs from liver samples for subsequent HPLC-FL determination of ten PAHs in the enriched extract. Recoveries (90-115%) and RSD % ({<=} 7.7) were satisfactory. When applied to 11 samples of bird of prey (Tyto alba) protected species and classified of special interest, from the Galicia (Northwest to Spain), benzo[ghi]perylene and indeno[1,2,3-cd]pyrene were undetectable; chrysene and benzo[a]pyrene are only detected in one sample; benzo[a]anthracene and benzo[k]fluoranthene are only quantified in one sample and benzo[b]fluoranthene in two samples. The other PAHs, anthracene, fluoranthene and pyrene are present in almost all the samples. (orig.)

  2. Supercritical fluid extraction of polycyclic aromatic hydrocarbons from liver samples and determination by HPLC-FL.

    Science.gov (United States)

    González Amigo, S; García Falcón, M S; Lage Yusty, M A; Simal Lozano, J

    2000-07-01

    An extraction/clean-up procedure by SFE was developed for isolating PAHs from liver samples for subsequent HPLC-FL determination of ten PAHs in the enriched extract. Recoveries (90-115%) and RSD % (bird of prey (Tyto alba) protected species and classified of special interest, from the Galicia (Northwest to Spain), benzo[ghi]perylene and indeno[1,2,3-cd]pyrene were undetectable; chrysene and benzo[a]pyrene are only detected in one sample; benzo[a]anthracene and benzo[k]fluoranthene are only quantified in one sample and benzo[b]fluoranthene in two samples. The other PAHs, anthracene, fluoranthene and pyrene are present in almost all the samples. PMID:11225834

  3. Perceptions of accounting professionals towards the prospect of implementing fair value under IASB in Vietnamese accounting system: A quantitative study of accounting professionals in Vietnam

    OpenAIRE

    Nguyen, Ngan Thi Tung

    2014-01-01

    Trong khi k? toán giá g?c ?ang ngày càng bi?u hi?n nhi?u y?u ?i?m v? ghi nh?n giá tr? c?a tài s?n và n? trong nhi?u tr??ng h?p k? toán thì ng??c l?i, giá tr? h?p lý l?i ?ang tr? nên ph? bi?n trong k? toán vì nh?ng ?u ?i?m v??t tr?i có th? kh?c ph?c nh??c ?i?m c?a k? toán giá g?c. Giá tr? h?p lý nh?n ???c s? ?ng h? l?n t? H?i ??ng Tiêu chu?n K? toán Qu?c t?...

  4. Hydrogen and fuel cell activity report, France 2009

    International Nuclear Information System (INIS)

    This report gathers the main highlights of 2009 in the field of hydrogen and fuel cells in France. It presents the political context (priority to a sustainable development and to renewable energies) and the main initiatives (official commitment, projects and programmes launched by different public bodies and organizations). It briefly presents the projects and programmes concerning the hydrogen: ANR programmes, national structures dedicated to hydrogen and fuel cells, fundamental research, demonstrator project (the H2E project), applications in transport (a project by Peugeot, the Althytude project coordinated by GDF, the Hychain European project, and other airborne or maritime projects), stationary applications (MYRTE). It also briefly describes the activities of some small companies (CETH, McPHY, RAIGI, PRAGMA Industries, N-GHY, SAGIM), and regional initiatives. Colloquiums, congresses and meetings are mentioned

  5. A transfer function for the prediction of gas hydrate inventories in marine sediments

    Directory of Open Access Journals (Sweden)

    M. Marquardt

    2010-09-01

    Full Text Available A simple prognostic tool for gas hydrate (GH quantification in marine sediments is presented based on a diagenetic transport-reaction model approach. One of the most crucial factors for the application of diagenetic models is the accurate formulation of microbial degradation rates of particulate organic carbon (POC and the coupled formation of biogenic methane. Wallmann et al. (2006 suggested a kinetic formulation considering the ageing effects of POC and accumulation of reaction products (CH4, CO2 in the pore water. This model is applied to data sets of several ODP sites in order to test its general validity. Based on a thorough parameter analysis considering a wide range of environmental conditions, the POC accumulation rate (POCar in g/m2/yr and the thickness of the gas hydrate stability zone (GHSZ in m were identified as the most important and independent controls for biogenic GH formation. Hence, depth-integrated GH inventories in marine sediments (GHI in g of CH4 per cm2 seafloor area can be estimated as:

    GHI = a · POCar · GHSZb · exp (– GHSZc/POCar/d + e

    with a = 0.00214, b = 1.234, c = –3.339,

            d = 0.3148, e = –10.265.

    The transfer function gives a realistic first order approximation of the minimum GH inventory in low gas flux (LGF systems. The overall advantage of the presented function is its simplicity compared to the application of complex numerical models, because only two easily accessible parameters need to be determined.

  6. A transfer function for the prediction of gas hydrate inventories in marine sediments

    Directory of Open Access Journals (Sweden)

    M. Marquardt

    2010-02-01

    Full Text Available A simple prognostic tool for gas hydrate (GH quantification in marine sediments is presented based on a diagenetic transport-reaction model approach. One of the most crucial factors for the application of diagenetic models is the accurate formulation of microbial degradation rates of particulate organic carbon (POC and the coupled biogenic CH4 formation. Wallmann et al. (2006 suggested a kinetic formulation considering the ageing effects of POC and accumulation of reaction products (CH4, CO2 in the pore water. This model is applied to data sets of several ODP sites in order to test its general validity. Based on a thorough parameter analysis considering a wide range of environmental conditions, the POC accumulation rate (POCar in g/cm2/yr and the thickness of the gas hydrate stability zone (GHSZ in m were identified as the most important and independent controls for biogenic GH formation. Hence, depth-integrated GH inventories in marine sediments (GHI in g of CH4 per cm2 seafloor area can be estimated as:

    GHI = a · POCar · GHSZb · exp (?GHSZc/POCar/d + e

    with a = 0.00214, b = 1.234, c = ?3.339, d = 0.3148, e = ?10.265.

    Several tests indicate that the transfer function gives a realistic approximation of the minimum potential GH inventory of low gas flux (LGF systems. The overall advantage of the presented function is its simplicity compared to complex numerical models: only two easily accessible parameters are needed.

  7. Certified reference material for traceability in environmental analysis: PAHs in toluene

    Scientific Electronic Library Online (English)

    Evelyn de F., Guimarães; Eliane C. P. do, Rego; Helen C. M., Cunha; Janaína M., Rodrigues; José Daniel, Figueroa-Villar.

    2014-02-01

    Full Text Available Material de referência certificado (CRM) desempenha um papel vital para a garantia de controle em análises ambientais, uma vez que a qualidade dos dados resultantes de medições ambientais tem importância crucial. Este artigo apresenta os resultados de estudos realizados para a certificação dos compo [...] stos planejados como candidato a material de referência, que são dezesseis hidrocarbonetos policíclicos aromáticos (PAHs) dissolvidos em tolueno (naftaleno, acenaftileno, acenafteno, fluoreno, antraceno, fenantreno, fluoranteno, criseno, benzo[a]antraceno, pireno, benzo[k]fluoranteno, benzo[b]fluoranteno, benzo[a]pireno, dibenzo[a, h]anthaceno, indeno[1, 2, 3-cd]pireno e benzo[ghi]perileno). Este é o primeiro CRM brasileiro de PAH desenvolvido pelo Inmetro. O processo de certificação inclui a validação do método GC/IDMS (espectrometria de massa de diluição isotópica acoplada a cromatografia gasosa), o estudo de homogeneidade, a estabilidade em condição de transporte e de armazenamento, além de cálculo de incertezas de medição. Abstract in english Certified reference material (CRM) plays a vital role for quality control assurance in environmental analysis, because the quality of data arising from measurements has crucial importance. This article presents the results from studies carried out for certification of a candidate reference material [...] composed by sixteen polycyclic aromatic hydrocarbons (PAHs) dissolved in toluene (naphthalene, acenaphthylene, acenaphtene, fluorene, anthracene, phenanthrene, fluoranthene, chrysene, benzo[a]anthracene, pyrene, benzo[k]fluoranthene, benzo[b]fluoranthene, benzo[a]pyrene, dibenzo[a,h]anthacene, indeno[123-cd]pyrene and benzo[ghi]perylene). This is the first Brazilian PAH CRM developed by Inmetro. The certification procedure includes validation of the GC/IDMS method (isotopic dilution mass spectrometry coupled to gas chromatography), homogeneity study, stability studies under transport and storage conditions and estimation of measurement uncertainties.

  8. Hidrocarbonetos policíclicos aromáticos (HPAs) em aguardentes / PHAs in spirits

    Scientific Electronic Library Online (English)

    S. M., Bettin; D. Wagner, Franco.

    2005-06-01

    Full Text Available A presença de hidrocarbonetos aromáticos polinucleares (HPAs) em aguardentes foi investigada por cromatografia líquida (CLAE) após sua prévia extração em fase sólida (SPE). A separação foi realizada em uma coluna Supelco, LCPAH-octadecil silano (25cm x 4,6mm x 5mm) com gradiente acetonitrila/água e [...] a quantificação utilizando detector de fluorescência. Os HPAs (naftaleno; acenaftaleno; fluoreno; fenantreno; antraceno; fluoranteno; pireno; 1,2- benzo(e)pireno; criseno; benzo(e)pireno; 2,3-benzo(a)antraceno; 1,2-benzo(b)fluoranteno; benzo(k)fluoranteno; dibenzo(a,h)antraceno; benzo(a)pireno; benzo(ghi)pirileno foram identificados e quantificados em vinte e oito amostras de aguardentes de cana. Os resultados experimentais para as amostras de aguardentes (cachaças) são analisados em termos de análises de componentes principais (PCA) objetivando a diferenciação entre o perfil das aguardentes produzidas a partir de cana-de-açúcar queimada e não-queimada. Abstract in english The presence of PHAs (polycyclic aromatic hydrocabons) in spirits has been investigated using high performance liquid chromatography (HPLC) after solid phase extraction (SPE). The separation was achieved with a Supelco LCPAH-octadecil silane column [25cm x 4,6mm x 5mm] and acetonitrile/water elution [...] gradient and the quantification using a fluorescence detector. The PHAs (naphthalene; acenaphthene; fluorene; phenantrene; anthracene; phuorantene; pyrene; 1,2-benzo(e)pyrene; chrysene; benzo(e)pyrene; 2,3-benzo(a)anthracene; 1,2-benzo(b)phluoranthene; benzo(k)fluoranthene; dibenzo(a,h)anthracene; benzo(a)pyreno; benzo(ghi)pyrilene were quantifed in twenty eight samples of sugar cane spirits. All the experimental data for sugar cane spirit have been analyzed through principal components analysis (PCA) aiming to compare the chemical profile of beverages produced from burned and not burned sugar cane.

  9. Monitoreo del glaciar horcones inferior y sus termokarst, antes y durante el surge de 2003-2006: Andes centrales argentinos

    Scientific Electronic Library Online (English)

    María Gabriela, Lenzano; Darío, Trombotto Liaudat; Juan Carlos, Leiva.

    2012-12-01

    Full Text Available En el presente trabajo se expone el monitoreo de termokarts glaciarios y su relación e interacción con los eventos surges ocurridos en el glaciar cubierto Horcones Inferior (GHI). Este glaciar se encuentra ubicado a los 32º 41'S y 69º 57'W, al pie de la pared sur del C° Aconcagua, Parque Provincial [...] Aconcagua, en la Provincia de Mendoza, Argentina. El estudio fue llevado a cabo a través de la implementación de métodos indirectos de detección utilizando imágenes de los sensores Landsat y Aster durante el período 1997-2006. En el Glaciar Horcones Inferior "GHI", la superficie ocupada por los termokarst alcanza valores que varían entre el 4.3% y el 0% de la superficie total del glaciar, al finalizar un evento de surge. Las velocidades registradas en la superficie del glaciar cubierto arrojaron valores promedios entre 0.4 y 12 m/día. La metodología aplicada, con imágenes satelitales históricas, representa una herramienta fundamental para separar períodos de flujo glaciario catastróficos y no catastróficos. Abstract in english This work analyses the temporal evolution of thermokarst and their relationship to the surges in a reconstituted debris covered glacier. The glacier Horcones Inferior is located at Lat 32º 41' S and Long 69º 57' W in the Provincial Park Aconcagua, Mendoza, Argentina, on the foot of the Aconcagua mas [...] sif. The study and monitoring of the thermokarst was carried out applying indirect methods using Landsat and Aster images from 1997-2006. Detected percentages of thermokarst, in relation to the total glacial area, showed that they varied between 4.3% to 0% at the end of the surge event. The registered speeds of the glacier -on the glacial surface- reached averages of between 0.4 and 12 m/d. This methodology, with historical images from archives, represents a fundamental tool to separate catastrophic and non-catastrophic glacial flow periods.

  10. Source apportionment of elevated wintertime PAHs by compound-specific radiocarbon analysis

    Directory of Open Access Journals (Sweden)

    R. J. Sheesley

    2009-05-01

    Full Text Available Natural abundance radiocarbon analysis facilitates distinct source apportionment between contemporary biomass/biofuel (14C "alive" versus fossil fuel (14C "dead" combustion. Here, the first compound-specific radiocarbon analysis (CSRA of atmospheric polycyclic aromatic hydrocarbons (PAHs was demonstrated for a set of samples collected in Lycksele, Sweden a small town with frequent episodes of severe atmospheric pollution in the winter. Renewed interest in using residential wood combustion (RWC means that this type of seasonal pollution is of increasing concern in many areas. Five individual/paired PAH isolates from three pooled fortnight-long filter collections were analyzed by CSRA: phenanthrene, fluoranthene, pyrene, benzo[b+k]fluoranthene and indeno[cd]pyrene plus benzo[ghi]perylene; phenanthrene was the only compound also analyzed in the gas phase. The measured ?14C for PAHs spanned from ?138.3‰ to 58.0‰. A simple isotopic mass balance model was applied to estimate the fraction biomass (fbiomass contribution, which was constrained to 71–87% for the individual PAHs. Indeno[cd]pyrene plus benzo[ghi]perylene had an fbiomass of 71%, while fluoranthene and phenanthrene (gas phase had the highest biomass contribution at 87%. The total organic carbon (TOC, defined as carbon remaining after removal of inorganic carbon fbiomass was estimated to be 77%, which falls within the range for PAHs. This CSRA data of atmospheric PAHs established that RWC is the dominating source of atmospheric PAHs to this region of the boreal zone with some variations among RWC contributions to specific PAHs.

  11. Source apportionment of elevated wintertime PAHs by compound-specific radiocarbon analysis

    Science.gov (United States)

    Sheesley, R. J.; Kruså, M.; Krecl, P.; Johansson, C.; Gustafsson, Ã.-.

    2009-05-01

    Natural abundance radiocarbon analysis facilitates distinct source apportionment between contemporary biomass/biofuel (14C "alive") versus fossil fuel (14C "dead") combustion. Here, the first compound-specific radiocarbon analysis (CSRA) of atmospheric polycyclic aromatic hydrocarbons (PAHs) was demonstrated for a set of samples collected in Lycksele, Sweden a small town with frequent episodes of severe atmospheric pollution in the winter. Renewed interest in using residential wood combustion (RWC) means that this type of seasonal pollution is of increasing concern in many areas. Five individual/paired PAH isolates from three pooled fortnight-long filter collections were analyzed by CSRA: phenanthrene, fluoranthene, pyrene, benzo[b+k]fluoranthene and indeno[cd]pyrene plus benzo[ghi]perylene; phenanthrene was the only compound also analyzed in the gas phase. The measured ?14C for PAHs spanned from -138.3‰ to 58.0‰. A simple isotopic mass balance model was applied to estimate the fraction biomass (fbiomass) contribution, which was constrained to 71-87% for the individual PAHs. Indeno[cd]pyrene plus benzo[ghi]perylene had an fbiomass of 71%, while fluoranthene and phenanthrene (gas phase) had the highest biomass contribution at 87%. The total organic carbon (TOC, defined as carbon remaining after removal of inorganic carbon) fbiomass was estimated to be 77%, which falls within the range for PAHs. This CSRA data of atmospheric PAHs established that RWC is the dominating source of atmospheric PAHs to this region of the boreal zone with some variations among RWC contributions to specific PAHs.

  12. Oxygen isotope geochemistry of the Granite Harbour Intrusives, Wilson Terrane, Northern Victoria Land, Antarctica

    International Nuclear Information System (INIS)

    The oxygen and strontium isotope compositions of the Cambro-Ordovician granitoids cropping out in the Wilson Terrane (Granite Harbour Intrusives-GHI) constrain the petrological evolution of the magmatism in Antarctica, related to the Ross Orogeny. The measured ?18OWR values of three intrusives define three different compositional groups: the metaluminous rocks (MAG), with ?18OWR ranging from 6.9 (olivine gabbro) to 11.4 %o (monzogranite); the unaltered peraluminous granites (PAG), having ?18OWR values ranging from 10.6 to 13.2 %o, and the foliated peraluminous leucogranites (SKG), characterized by ?18OWR values above 14 %o. The analysis of equilibrium mineral assemblages indicates that the high ?18OWR values are magmatic and unaffected by low-temperature processes. A few peraluminous granites sampled in the vicinity of Cenozoic intrusions show anomalously low ?18OWR, due to meteoric-hydrothermal alteration. The isotopic data indicate that the coeval and spatially related metaluminous mafic and felsic intrusives forming the GHI were not comagmatic: the mafic and intermediate rocks were likely derived from lower crustal contamination of a pristine basaltic magma; their ?18OWR values were also increased during emplacement, due to the interaction with the adjacent 18O-rich hydrous felsic magmas (mixing)rich hydrous felsic magmas (mixing). Oxygen isotope data indicate that the crustal sources producing the granite harbor intrusives were not homogeneous: the felsic metaluminous intrusives were produced by partial melting of fertile rock with possible igneous origin, whereas partial melting of a metapelitic source rock is claimed for the genesis of the peraluminous granites. (author)

  13. Impact of aerosols on the forecast accuracy of solar irradiance calculated by a numerical weather prediction model

    Science.gov (United States)

    Shimose, Ken-ichi; Ohtake, Hideaki; Fonseca, Joao Gari da Silva; Takashima, Takumi; Oozeki, Takashi; Yamada, Yoshinori

    2014-10-01

    The impact of aerosols on the forecast accuracy of solar irradiance calculated by a fine-scale, one day-ahead, and operational numerical weather prediction model (NWP) is investigated in this study. In order to investigate the impact of aerosols only, the clear sky period is chosen, which is defined as when there are no clouds in the observation data and in the forecast data at the same time. The evaluation of the forecast accuracy of the solar irradiance is done at a single observation point that is sometimes affected by aerosol events. The analysis period is one year from April 2010 to March 2011. During the clear sky period, the root mean square errors (RMSE) of the global horizontal irradiance (GHI), direct normal irradiance (DNI), and diffuse horizontal irradiance (DHI) are 40.0 W m-2, 84.0 Wm-2, and 47.9 W m-2, respectively. During one extreme event, the RMSEs of the GHI, DNI, and DHI are 70.1 W m-2, 211.6 W m-2, and 141.7 W m-2, respectively. It is revealed that the extreme events were caused by aerosols such as dust or haze. In order to investigate the impact of the aerosols, the sensitivity experiments of the aerosol optical depth (AOD) for the extreme events are executed. The best result is obtained by changing the AOD to 2.5 times the original AOD. This changed AOD is consistent with the satellite observation. Thus, it is our conclusion that an accurate aerosol forecast is important for the forecast accuracy of the solar irradiance.

  14. Developing the Next-Generation National Solar Radiation Data Base (NSRDB)

    Science.gov (United States)

    Sengupta, M.; Habte, A.; Gotseff, P.; Lopez, A.; Weekley, A.

    2014-12-01

    Providing publicly accessible high-quality and long-term satellite based solar resource datasets for the US reduces barriers to solar grid penetration. There are two widely used approaches to derive solar resource from satellites (a) an empirical approach that relates ground based observations with satellite measurements and (b) a physics based approach that considers the radiation received at the satellite and create retrievals to estimate clouds and surface radiation. While empirical methods have been traditionally used for computing surface radiation the advent of faster computing has made operational physical models viable. The Global Solar Insolation Project (GSIP) is an operational physical model from NOAA that computes GHI using the visible and infrared channel measurements from the GOES satellites. GSIP uses a two-stage scheme that first retrieves cloud properties and uses those properties in the Satellite Algorithm for Surface Radiation Budget (SASRAB) model to calculate surface radiation. NREL, University of Wisconsin and NOAA have recently collaborated to adapt GSIP to create a high temporal and spatial resolution dataset. The product initially generates the cloud properties through applying the AVHRR Pathfinder Atmospheres-Extended (PATMOS-x) algorithms on GOES data while the global horizontal radiation (GHI) and diffuse horizontal radiation (DHI) are calculated using SASRAB. Comparison with ground sites resulted in the finding that the satellite based surface radiation suffered from a significant low-bias. The most significant bias occurred in clear-sky situation. To remove this clear-sky bias we tested three new radiative transfer algorithms that required aerosol optical depth and precipitable water vapor as inputs. These experiments showed significant improvement in the clear sky radiation (Figure 1). We will present an outline of the development of this new version of the NSRDB, a validation of the product and future plans for enhancement and improvement.

  15. XII Mi?dzynarodowe Sympozjum Naukowo-Szkoleniowe Sekcji Mikologicznej Polskiego Towarzystwa Dermatologicznego

    Directory of Open Access Journals (Sweden)

    El?bieta Krajewska-Ku?ak

    2007-03-01

    Full Text Available W dniach 20-24 wrze?nia 2006 r., odby?o si? XII Mi?dzynarodowe Sympozjum Naukowo-Szkoleniowe Sekcji Mikologicznej Polskiego Towarzystwa Dermatologicznego MIKOLOGIA 2006. Z?ot? polsk? jesieni? przywita?a go?ci Bia?owie?a, wie? po?o?ona w Puszczy Bia?owieskiej, nad rzek? Narewk?, na tzw. Polanie Bia?owieskiej powsta?ej na skutek karczowania lasów. Otoczona rezerwatami przyrody, wyró?niaj?ca si? unikatowym w skali europejskiej dziedzictwem przyrodniczym i kulturowym. To w?a?nie tutaj odpoczywali w?adcy po polowaniach, a przez wieki ?yj? wspólnie Polacy, ?ydzi, Tatarzy, Bia?orusini, Ukrai?cy, Staroobrz?dowcy. Ta mieszanka narodów, przez ich wzajemne oddzia?ywanie, stworzy?a niepowtarzaln? kultur?, której wynikiem s? pi?kne budowle, bogate tradycje i ciekawe obrz?dy, niespotykane nigdzie indziej. Uczestnicy Sympozjum mieli okazj? poznaæ uroki polskiej jesieni, o której tak pi?knie pisa?a Maria Janik: Barwnym tiulem otulona idzie jesie? w pe?nej krasie, z?otych jab?ek i czerwonych, ma w koszyku w swym zapasie. W czarne w?osy ma wplecione cudne ki?cie jarz?biny i otula snem g??bokim, drzewa, kwiaty, pola, niwy. Brzóz ramiona zwisaj?ce wiatr porywa i unosi, i k?aniaj?c si? jej nisko, do ta?ca j? pi?knie prosi. Roz?piewana, rozmarzona, rozta?czona pani jesie?, astrów, malw i chryzantem bukiety nam niesie. W sadach jab?ka na jab?oniach maluje czerwieni?, klony z?otem obsypuje, a sosny zieleni?. Idzie jesie?... Wiatr o smutku ?piewa i jak z?ota mewa, w dal nieznan? mknie za li?ciem li??. Wiatr, wed?ug Jerzego Kerna, najwi?kszy elektroluks ?wiata, który wszystkie drzewa z li?ci poomiata? i baluje w pustej altanie... W tej urokliwej scenerii Sympozjum zorganizowa? Zak?ad Piel?gniarstwa Ogólnego AM w Bia?ymstoku przy wspó?pracy Kliniki Dermatologii i Wenerologii AM w Bia?ymstoku, Katedry i Kliniki Dermatologii, Wenerologii i Alergologii AM w Gda?sku, Zarz?du Sekcji Mikologicznej Polskiego Towarzystwa Dermatologicznego, Polskiego Towarzystwa Lekarskiego Oddzia? Regionalny Bia?ystok. Patronat nad Sympozjum obj?li Jego Magnificencja Rektor Prof. dr hab. med. Jan Górski, Wojewoda Podlaski Jan Dobrzy?ski, Marsza?ek Województwa Podlaskiego Janusz Krzy?ewski oraz Prezydent Miasta Bia?egostoku Ryszard Tur i Wójt Gminy Bia?owie?a Anna Bajko. Obrady rozpocz??y si? w Centrum Kongresowym PAN w Parku Narodowym. Uczestników barwnie powita? Zespó? Pie?ni Ludowej „Ma?anka", dzia?aj?cy od 1990 r. w Domu Kultury w Bielsku Podlaskim, pod kierownictwem artystycznym Sergiusza £u kasz u ka. Zespó? wykona? bia?oruskie pie?ni ludowe popularne na Podlasiu, jak równie? pie?ni ludowe z Polesia oraz polskie pie?ni ludowe z Podlasia. Nast?pnie uczestnicy mieli mo?liwo?? zwiedzenia Muzeum Przyrodniczo-Le?nego, zaprojektowanego przez grup? specjalistów w dziedzinie przyrody, architektury oraz sztuki. W muzeum wszystko jest eksponowane za po?rednictwem dioram, z wykorzystaniem ?rodków ekspresyjnego przekazu - ?wiat?a, d?wi?ku, przestrzeni. Architektura wn?trza oparta jest na planie spirali, a ukszta?towanie pod?ogi, przyciemnione ?wiat?a, efekty dnia i nocy oraz odg?osy puszczy sprawiaj?, ?e po przekroczeniu progu wystawy zwiedzaj?cym wydaje si?, ?e znajduj? si? w ?ród ku dziewiczego lasu. Wra?enia te, dzi?ki obecno?ci przewodników, uzupe?niane s? spor? porcj? wiedzy o przyrodzie i zjawiskach zachodz?cych w Puszczy. Zasadnicze obrady rozpocz??y si? rano 21 wrze?nia. W Sympozjum ??cznie udzia? wzi??o 500 lekarzy dermatologów, mikologów, ale tak?e mikrobiologów, weterynarzy, biolog??w, epidemiologów z kraju i z zagranicy. Komitet honorowy stanowili znakomici zagraniczni mikolodzy: dr Claudia Borelli (Niemcy, prof. Bertrand Dupont (Francja, prof. Jochen Brasch (Niemcy, prof. Gabriele Ginter-Hanselmayer (Austria, prof. Nicole Nolard (Belgia, prof. Jacques E. Meis (Holandia, prof. Martin Schaller (Niemcy, dr Josef Wenning (Niemcy, oraz polscy: prof. dr h

  16. Balón intraaórtico en pacientes candidatos a trasplante de corazón: guía operacional de los cuidados de enfermería / Balão intra aórtico em pacientes candidatos a transplante de coração: guia operacional dos cuidados de enfermagem

    Scientific Electronic Library Online (English)

    R.C., Machado; J.N., Rodrigues Branco; A.L.G., Galvão de Sant' Anna; V.M. de A., Giaretta; M.B., Salazar Posso; E., Buffolo.

    2012-10-01

    Full Text Available A pesquisa objetivou validar o conteúdo de um guia operacional dos cuidados de enfermagem a pacientes candidatos a transplante de coração em uso do Balão Intra Aórtico correlacionando às publicações da literatura científica a vivência prática de especialistas. A trajetória metodologia seguiu três fa [...] ses: 1-Construção do instrumento; 2-Validação do conteúdo do instrumento; 3-Elaboração do guia operacional pela análise de concordância entre os avaliadores e a literatura científica. A amostra de sujeitos deste estudo foi composta por 48 profissionais entre médicos e enfermeiros peritos que prestam assistência direta a pacientes cardiopatas em condição clínica instável utilizando o BIA. Os cuidados validados neste estudo foram referentes à manutenção em decúbito horizontal e indicação da mudança de decúbito do paciente; realizar a troca do sítio de inserção do cateter sempre que houver sinais de infecção; tempo de troca da cobertura de curativo com filme transparente do local de inserção do cateter balão pode ser feita com sete dias; avaliar constantemente a posição do cateter na radiografia de tórax; avaliar a clinica do membro de inserção do cateter; analisar acerca do tempo de troca dos transdutores; esclarecer ao paciente e familiar quanto ao risco-benefício do BIA; comunicar o paciente a cada mudança dos parâmetros do BIA; a compressão do local após a retirada do cateter pode ser realizada manualmente, mecanicamente ou mista. Baseando-se na prática clínica de peritos e na literatura científica, presentes neste estudo, observou-se que a construção de um guia pode ser uma ferramenta de grande valia para a sistematização do cuidado. Abstract in spanish La investigación objetivó validar el contenido de una guía operacional de los cuidados de enfermería a los pacientes candidatos a trasplante de corazón con balón intraaórtico relacionándolo con las publicaciones de la literatura científica sobre experiencia práctica de especialistas. La metodología [...] siguió tres fases: 1-Construcción del instrumento; 2-Validación del contenido del instrumento; 3- Elaboración de la guía operacional para el análisis del acuerdo entre los evaluadores y la literatura científica. La muestra de sujetos de este estudio estuvo compuesta de 48 profesionales entre los doctores y las enfermeras expertos que prestan asistencia directa a pacientes cardiopatas en condiciones clínicas inestables usando el BIA. Los cuidados validados en este estudio se refieren al mantenimiento en decubito horizontal y la indicación del cambio de decubito del paciente; realizar el cambio del lugar de inserción del catéter siempre que haya señales de infección; tiempo de cambio de la cubierta del curativo con film transparente del lugar de inserción del globo del catéter se puede hacer en siete días; evaluar constantemente la posición del catéter en la radiografía del tórax; evaluar la clínica del miembro de inserción del catéter; analizar el tiempo de cambio de los transductores; clarificar al paciente y familiar sobre el riesgo-ventaja del BIA; comunicar al paciente cada cambio de los parámetros del BIA; la compresión del lugar después de la retirada del catéter se pueda hacer t manualmente, mecánicamente o ambas. Basándose en la práctica clínica de los especialistas y en la literatura científica, presentes en este estudio, se observó que la construcción de una guía una puede ser una herramienta de gran valor para la sistematización del cuidado. Abstract in english The research was carried out to validate the content of an operational guide of nurse care among the candidate patients of heart transplants which used Intra Aortic Balloons correlating to publications of scientific literature on the practical experience of specialists. The methodology trajectory fo [...] llowed three phases: 1-Construction of the instrument; 2-Validation of the content of the instrument; 3-Elaboration of the operational guide for the analysis of the agreemen

  17. A two-phase population study: relationships between overweight, body composition and risk of eating disorders Estudio a doble fase: relación entre el sobrepeso, la composición corporal y el riesgo de trastorno de la conducta alimentaria

    Directory of Open Access Journals (Sweden)

    N. Babio

    2009-08-01

    Full Text Available Background: Overweight and eating disorder (ED are major public health problems in adolescents. Aims: To assess the association of overweight, body composition and anthropometric characteristics with the probability being at risk of ED. Methods: A two-phase study was used. 329 girls and 96 boys (aged 12-18 years from an initial sample of 2967 adolescents were studied. The BMI, percentage of fat mass estimated by bioimpedance (FM(BIA, waist circumference, waist-to-height ratio, and waist-to-hip ratio (WHipr were calculated. The Eating Attitudes Test, Youth's Inventory-4 and a questionnaire to evaluate social influences were administered. Results: A total of 34.7% of girls and 53.6% of boys at risk of ED were overweight (including obesity. For girls, overweight frequency was significantly higher in risk ED group than in control group. Increases of one point in the BMI or FM(BIA increased the probability of being at risk of ED by 12% (3.0-19.0 and 4% (0.0-8.0, respectively. An increase in Whipr was negatively associated with ED risk. Smoking and symptoms of dysthymia and the genralized anxiety disorder also increase the probability of being at risk of ED in adolescent girls. In adolescent boys, these relations were not observed. Conclusions: The higher BMI and the percentage of FM(BIA are associated with greater risk of ED in adolescent girls, when psychological factors are present. Increases in the WHipr, characteristic of childhood body is negatively associated with that risk.Introducción: El sobrepeso y los Trastornos de la Conducta Alimentaria (TCA son problemas importantes de salud pública entre los adolescentes. Objetivos: Valorar la asociación del sobrepeso, la composición corporal y otras características antropométricas con la probabilidad de estar en riesgo de desarrollar un TCA. Métodos: Se realizó un estudio con un diseño en doble fase. Se estudiaron 329 chicas y 96 chicos (de 12-18 años procedentes de una muestra inicial de 2967 adolescentes. Se calcularon el índice de masa corporal (IMC, el porcentaje de masa grasa (% MG(BIA, la circunferencia de la cintura, los cocientes cintura-talla y cintura-cadera. Se administraron el Eating Attitudes Test, el Youth's Inventory-4 y un cuestionario para evaluar influencia sociocultural. Resultados: El 34,7% de las chicas y el 53,6% de los chicos con riesgo de TCA presentan sobrepeso (incluyendo obesidad. La frecuencia de sobrepeso es significativamente más alta en las chicas del grupo de riesgo de TCA que las del grupo control. En las adolescentes, el aumento de un punto en el IMC o en el % MG(BIA incrementa el riesgo de estar en riesgo de TCA en 12% (3,0-19,0 y 4% (0,0-8,0, respectivamente; un incremento en el cociente cintura-cadera se asocia negativamente con el riesgo de TCA. Fumar, presentar síntomas de distimia y de trastornos de ansiedad generalizada también se asociaron con la probabilidad de estar en riesgo de TCA, en las adolescentes. En los varones, no se han observado esas relaciones. Conclusiones: El mayor IMC y de % MG(BIA se asocian con mayor riesgo de TCA en las adolescentes cuando los factores psicológicos están presentes. Un aumento en el cociente cintura-cadera, característico de un cuerpo infantil, se asocia negativamente con el riesgo de TCA.

  18. A two-phase population study: relationships between overweight, body composition and risk of eating disorders / Estudio a doble fase: relación entre el sobrepeso, la composición corporal y el riesgo de trastorno de la conducta alimentaria

    Scientific Electronic Library Online (English)

    N., Babio; J., Canals; A., Pietrobelli; S., Pérez; V., Arija.

    2009-08-01

    Full Text Available Introducción: El sobrepeso y los Trastornos de la Conducta Alimentaria (TCA) son problemas importantes de salud pública entre los adolescentes. Objetivos: Valorar la asociación del sobrepeso, la composición corporal y otras características antropométricas con la probabilidad de estar en riesgo de de [...] sarrollar un TCA. Métodos: Se realizó un estudio con un diseño en doble fase. Se estudiaron 329 chicas y 96 chicos (de 12-18 años) procedentes de una muestra inicial de 2967 adolescentes. Se calcularon el índice de masa corporal (IMC), el porcentaje de masa grasa (% MG(BIA)), la circunferencia de la cintura, los cocientes cintura-talla y cintura-cadera. Se administraron el Eating Attitudes Test, el Youth's Inventory-4 y un cuestionario para evaluar influencia sociocultural. Resultados: El 34,7% de las chicas y el 53,6% de los chicos con riesgo de TCA presentan sobrepeso (incluyendo obesidad). La frecuencia de sobrepeso es significativamente más alta en las chicas del grupo de riesgo de TCA que las del grupo control. En las adolescentes, el aumento de un punto en el IMC o en el % MG(BIA) incrementa el riesgo de estar en riesgo de TCA en 12% (3,0-19,0) y 4% (0,0-8,0), respectivamente; un incremento en el cociente cintura-cadera se asocia negativamente con el riesgo de TCA. Fumar, presentar síntomas de distimia y de trastornos de ansiedad generalizada también se asociaron con la probabilidad de estar en riesgo de TCA, en las adolescentes. En los varones, no se han observado esas relaciones. Conclusiones: El mayor IMC y de % MG(BIA) se asocian con mayor riesgo de TCA en las adolescentes cuando los factores psicológicos están presentes. Un aumento en el cociente cintura-cadera, característico de un cuerpo infantil, se asocia negativamente con el riesgo de TCA. Abstract in english Background: Overweight and eating disorder (ED) are major public health problems in adolescents. Aims: To assess the association of overweight, body composition and anthropometric characteristics with the probability being at risk of ED. Methods: A two-phase study was used. 329 girls and 96 boys (ag [...] ed 12-18 years) from an initial sample of 2967 adolescents were studied. The BMI, percentage of fat mass estimated by bioimpedance (FM(BIA)), waist circumference, waist-to-height ratio, and waist-to-hip ratio (WHipr) were calculated. The Eating Attitudes Test, Youth's Inventory-4 and a questionnaire to evaluate social influences were administered. Results: A total of 34.7% of girls and 53.6% of boys at risk of ED were overweight (including obesity). For girls, overweight frequency was significantly higher in risk ED group than in control group. Increases of one point in the BMI or FM(BIA) increased the probability of being at risk of ED by 12% (3.0-19.0) and 4% (0.0-8.0), respectively. An increase in Whipr was negatively associated with ED risk. Smoking and symptoms of dysthymia and the genralized anxiety disorder also increase the probability of being at risk of ED in adolescent girls. In adolescent boys, these relations were not observed. Conclusions: The higher BMI and the percentage of FM(BIA) are associated with greater risk of ED in adolescent girls, when psychological factors are present. Increases in the WHipr, characteristic of childhood body is negatively associated with that risk.

  19. Ecuación Predictora de Masa Grasa Corporal en Deportistas con Lesión Medular Crónica: Estudio Piloto / Predictive Equation of Body Fat Percentage in Athletes with Chronic Spinal Cord Injury: A Pilot Study

    Scientific Electronic Library Online (English)

    F. J, Ordonez; I, Rosety; G, Fornieles; A, Rodriguez-Pareja; M. A, Rosety; J. R, Alvero-Cruz; M, Rosety-Rodriguez.

    2014-03-01

    Full Text Available La determinación del porcentaje de masa grasa en pacientes con lesión medular crónica (LMC) resulta de interés por la alta morbimortalidad cardiovascular que presenta este grupo. En el caso de deportistas, además, permitiría optimizar su rendimiento deportivo. Por consiguiente, el presente estudio s [...] e planteó como primer objetivo comparar diferentes métodos de estudio del porcentaje de masa grasa de deportistas con LMC. Y como objetivo secundario, identificar alguna ecuación que permita predecir los niveles de masa grasa de manera más económica, sencilla, rápida y no invasiva. Se diseño un estudio observacional y transversal en el que participaron voluntariamente 8 deportistas varones con LMC a nivel o por debajo de T5 que compiten a nivel nacional. El porcentaje de masa grasa corporal de los participantes se determinó mediante tres metodologías: densitometría (DEXA), antropometría convencional (Ecuación de Siri) e impedancia bioeléctrica (BIA). Este protocolo fue aprobado por un Comité de Ética Institucional. El porcentaje de masa grasa presentado por jugadores de baloncesto en silla de ruedas tras someterse al método de referencia (DEXA) fue del 28,76±9,16%. El análisis de concordancia de Bland-Altman entre métodos sugiere que tanto la antropometría convencional como la BIA subestiman el porcentaje de masa grasa de deportistas con LMC. la ecuación de predicción obtenida fue: Masa Grasa (%)= 1,9197 (pliegue tríceps (mm)) + 6,5063. Tanto las técnicas antropométricas convencionales como la propia BIA subestiman la masa grasa en deportistas con LMC. Asimismo se ha identificado una ecuación de regresión para la predicción del porcentaje de masa grasa de bajo coste y aplicable en cualquier entorno. Abstract in english The assessment of fat mass (FM) is of great interest for people with chronic spinal cord injury (SCI) given that morbidity and mortality from cardiovascular disease are greater and occur earlier in this group. Furthermore, it may play a key role improving physical performance in athletes with SCI. F [...] or the reasons already mentioned, the current study was designed to compare different methods for assessing FM in athletes with SCI. A secondary objective was to identify a predictive equation for FM in this group that is easily reproducible elsewhere. A total of 8 male athletes with complete SCI at or below the 5th thoracic level (T5) competing in a national league volunteered for this study. The percentage of FM was assessed by three different methods: conventional anthropometry (Siri equation), bioelectrical impedance analysis (BIA) and densitometry (DEXA). This research was conducted in full accordance with ethical principles, including the World Medical Association Declaration of Helsinki (version, 2002). Furthermore, the present protocol was approved by an Institutional Ethics Committee. Mean percentage of FM assessed by DXA was 28.76±9.16%. Moreover, Bland-Altman plots suggested conventional anthropometry and BIA underestimated fat mass percentage in this group. Lastly, a predictive equation for fat mass was established as follows: FM (%)=1.9197 (triceps skinfold thickness (mm))+6.5063. It was concluded that both conventional anthropometry and BIA underestimated fat mass in athletes with chronic SCI. Furthermore, a predictive equation of fat mass was recommended for this group due to its low cost and wide availability in any clinical setting.

  20. Efecto de la realimentación en la composición corporal de mujeres con anorexia nerviosa restrictiva: antropometría frente a impedancia bioeléctrica / Effect of refeeding on the body composition of females with restrictive anorexia nervosa: anthropometry versus bioelectrical impedance

    Scientific Electronic Library Online (English)

    Beatriz de, Mateo Silleras; Paz, Redondo del Río; Alicia, Camina Martín; María, Soto Célix; Sara R., Alonso Torre; Alberto, Miján de la Torre.

    1717-17-01

    Full Text Available Objetivo: Evaluar la composición corporal en un grupo de pacientes desnutridas con anorexia nerviosa, respecto de controles sanas, antes y después del soporte nutricional, mediante antropometría y bioimpedancia. Métodos: Estudio observacional prospectivo. Se realizó una antropometría completa y un a [...] nálisis de bioimpedancia a 12 mujeres con anorexia nerviosa restrictiva (24,5 años) al ingreso hospitalario y semanalmente durante la realimentación. El grupo control estuvo formado por 24 mujeres sanas (21 años). Se aplicaron los test t-Student, U-Mann-Whitney, t-Student para medidas repetidas o Wilcoxon. La concordancia entre antropometría y BIA se analizó mediante el coeficiente de correlación intraclase y Bland-Altman. Resultados: Las pacientes mejoraron significativamente todos los índices de composición corporal a lo largo de la estancia hospitalaria, aunque sus valores al alta siguieron siendo menores que los de las controles. La media de peso ganado fue 5,22 kg (DE: 1,42), de los que el 51,4% fueron masa grasa, con distribución central preferentemente. En las controles la ecuación de BIA que mejor concuerda con antropometría es la de Sun (CCI = 0,896); en las pacientes la concordancia fue más débil, al ingreso y al alta. Conclusiones: La realimentación produce una ganancia ponderal, fundamentalmente a expensas de masa grasa, con distribución central; no se consigue restablecer el estado nutricional. La concordancia entre antropometría y bioimpedancia para el estudio de la composición corporal es aceptable, especialmente en sujetos sanos. Se recomienda emplear antropometría, si no se dispone de BIA vectorial o algún método gold estandard para el análisis de la composición corporal, en casos de alteraciones importantes en la composición corporal y/o el balance hídrico. Abstract in english Objective: To assess the body composition in a group of malnourished patients with anorexia nervosa as compared to healthy controls, before and after nutritional support, by means of anthropometry and bioimpedance. Methods: Prospective observational study. Complete anthropometry was performed as wel [...] l as bioimpedance analysis in 12 women (24.5 years) with restrictive anorexia nervosa at hospital admission and weekly thereafter during re-feeding. The control group was formed by 24 healthy women (21 years). The Student's t test, the Mann-Whitney U test, the Student's t test for repeated measurements, and the Wilcoxon's test were applied. The level of agreement between anthropometry and BIA was calculated by the interclass correlation coefficient and the Bland-Altman s test. Results: The patients had significant improvements in all indexes of body composition throughout their hospital staying although their values at discharge still were lower than those of the control subjects. The average weight gain was 5.22 kg (SD: 1.42), of which 51.4% was fat mass, preferentially centrally distributed. In the control subjects, the BIA equation that correlated the best with anthropometrics was Sun s equation (CCI = 0.896); in the patients, the level of agreement was weaker, both at hospital admission and at hospital discharge. Conclusions: Re-feeding produces weight gain, essentially at the expense of fat mass, which is centrally distributed; the nutritional status is not reestablished. The level of agreement between anthropometry and bioimpedance for studying body composition is acceptable, especially in healthy subjects. In those cases with severe changes in body composition and/or water balance, anthropometry is recommended when vectorial BIA or some other gold standard method are not available for the analysis of body composition.

  1. Non-invasive diagnosis of risk in dengue patients using bioelectrical impedance analysis and artificial neural network.

    Science.gov (United States)

    Ibrahim, F; Faisal, T; Salim, M I Mohamad; Taib, M N

    2010-11-01

    This paper presents a new approach to diagnose and classify early risk in dengue patients using bioelectrical impedance analysis (BIA) and artificial neural network (ANN). A total of 223 healthy subjects and 207 hospitalized dengue patients were prospectively studied. The dengue risk severity criteria was determined and grouped based on three blood investigations, namely, platelet (PLT) count (less than or equal to 30,000 cells per mm(3)), hematocrit (HCT) (increase by more than or equal to 20%), and either aspartate aminotransferase (AST) level (raised by fivefold the normal upper limit) or alanine aminotransferase (ALT) level (raised by fivefold the normal upper limit). The dengue patients were classified according to their risk groups and the corresponding BIA parameters were subsequently obtained and quantified. Four parameters were used for training and testing the ANN which are day of fever, reactance, gender, and risk group's quantification. Day of fever was defined as the day of fever subsided, i.e., when the body temperature fell below 37.5°C. The blood investigation and the BIA data were taken for 5 days. The ANN was trained via the steepest descent back propagation with momentum algorithm using the log-sigmoid transfer function while the sum-squared error was used as the network's performance indicator. The best ANN architecture of 3-6-1 (3 inputs, 6 neurons in the hidden layer, and 1 output), learning rate of 0.1, momentum constant of 0.2, and iteration rate of 20,000 was pruned using a weight-eliminating method. Eliminating a weight of 0.05 enhances the dengue's prediction risk classification accuracy of 95.88% for high risk and 96.83% for low risk groups. As a result, the system is able to classify and diagnose the risk in the dengue patients with an overall prediction accuracy of 96.27%. PMID:20683676

  2. Effect of the ethinylestradiol/norelgestromin contraceptive patch on body composition. Results of bioelectrical impedance analysis in a population of Italian women

    Directory of Open Access Journals (Sweden)

    Bruni Vincenzina

    2008-08-01

    Full Text Available Abstract Background As weight gain is one of the most frequently cited reasons for not using and for discontinuing hormonal contraceptives, in an open-label, single-arm, multicentre clinical study we evaluated the effect of the ethinylestradiol/norelgestromin contraceptive patch (EVRA, Janssen-Cilag International, Belgium on body composition using bioelectrical impedance analysis (BIA. Methods Body weight and impedance vector components (resistance (R and reactance (Xc, at 50 kHz frequency, Akern-RJL Systems analyzer were recorded before entry, after 1, 3 and 6 months in 182 Italian healthy women aged 29 yr (18 to 45, and with BMI 21.8 kg/m2 (16 to 31. Total body water (TBW was estimated with a BIA regression equation. Vector BIA was performed with the RXc mean graph method and the Hotelling's T2 test for paired and unpaired data. Results After 6 months body weight increased by 0.64 kg (1.1% and TBW increased by 0.51 L (1.7%. The pattern of impedance vector displacement indicated a small increase in soft tissue hydration (interstitial gel fluid. Body composition changes did not significantly differ among groups of previous contraceptive methods. Arterial blood pressure did not significantly change over time. Conclusion After 6 months of treatment with the ethinylestradiol/norelgestromin contraceptive patch we found a minimal, clinically not relevant, increase in body weight less than 1 kg that could be attributed to an adaptive interstitial gel hydration. This fluctuation is physiological as confirmed by the lack of any effect on blood pressure. This could be useful in increasing women's choice, acceptability and compliance of the ethinylestradiol/norelgestromin contraceptive patch.

  3. Multidimensional evaluation of soil pollution from railway tracks.

    Science.gov (United States)

    Wierzbicka, Ma?gorzata; Bemowska-Ka?abun, Olga; Gworek, Barbara

    2015-05-01

    Railway transport is a source of pollution to soils and living organisms by e.g. PAHs, PCBs, oil-derived products, pesticides and heavy metals. Soil toxicity evaluation requires chemical analyses, indicating the type and content of particular pollutants, as well as biological analyses, which allow assessing the reaction of organisms to these pollutants. This paper is focused on a multi-aspect evaluation of the degree of toxicity and pollution of soil in selected railway areas from north-eastern Poland by application of numerous biotests and chemical analyses. The soils were sampled on railway tracks from the following railway stations: Bia?ystok Fabryczny, Siemianówka, Hajnówka, I?awa G?ówna and Wali?y. The most toxic soils occur on the railway tracks at Bia?ystok Fabryczny and Siemianówka. They had a significant toxic effect on test organisms from various trophic levels. The contents of PAHs, PCBs, heavy metals, oil-derived hydrocarbons and pesticide residues were determined in the examined soils. In all cases the detected pollutants did not exceed the admissible levels. The highest content of oil-derived substances was noted in soils from Bia?ystok Fabryczny and concentrations were moderate in soils from Siemianówka. Although the pollutants determined in soils from railway tracks did not exceed the admissible values, they had a toxic effect on numerous test organisms from different trophic levels. This suggests a synergistic effect of low concentrations (within the admissible levels) of several pollutants together, which resulted in a toxic effect on the organisms. Thus, there is a strong need of not only chemical, but also ecotoxicological analyses during the evaluation of environmental conditions. Based on data obtained from biological and chemical analyses, we concluded that railway transport may pose a hazard to the natural environment to a larger extent that hitherto expected. PMID:25762102

  4. Diretriz para análises de impacto orçamentário de tecnologias em saúde no Brasil Guidelines for budget impact analysis of health technologies in Brazil

    Directory of Open Access Journals (Sweden)

    Andre Luis Ferreira-Da-Silva

    2012-07-01

    Full Text Available Análises de impacto orçamentário (AIO fornecem previsões financeiras operacionais para a implementação de uma nova tecnologia em um sistema de saúde. Até o momento, não havia recomendações específicas para o desenvolvimento de AIO no Brasil. O presente trabalho apresenta uma revisão dos métodos usados nas AIO de tecnologias da saúde e propõe recomendações para seu uso nos âmbitos do SUS e do sistema de saúde suplementar. As recomendações principais são: analisar pela perspectiva do gestor; empregar horizonte temporal de um a cinco anos; comparar cenários de referência e alternativos; considerar taxa de incorporação da tecnologia; delimitar a população de interesse pela abordagem epidemiológica ou por demanda aferida; considerar restrições para acesso ou fatores indutores de demanda; considerar custos diretos incorridos e evitados; não ajustar para inflação ou descontos; integrar as informações em planilha eletrônica; calcular o impacto orçamentário diferencial entre cenários; sintetizar as informações em um relatório de impacto orçamentário.Budget impact analysis (BIA provides operational financial forecasts to implement new technologies in healthcare systems. There were no previous specific recommendations to conduct such analyses in Brazil. This paper reviews BIA methods for health technologies and proposes BIA guidelines for the public and private Brazilian healthcare system. The following recommendations were made: adopt the budget administrator's perspective; use a timeframe of 1 to 5 years; compare reference and alternative scenarios; consider the technology's rate of incorporation; estimate the target population by either an epidemiological approach or measured demand; consider restrictions on technologies' indication or factors that increase the demand for them; consider direct and averted costs; do not adjust for inflation or discounts; preferably, integrate information on a spreadsheet; calculate the incremental budget impact between scenarios; and summarize information in a budget impact report.

  5. Diretriz para análises de impacto orçamentário de tecnologias em saúde no Brasil / Guidelines for budget impact analysis of health technologies in Brazil

    Scientific Electronic Library Online (English)

    Andre Luis, Ferreira-Da-Silva; Rodrigo Antonini, Ribeiro; Vânia Cristina Canuto, Santos; Flávia Tavares Silva, Elias; Alexandre Lemgruber Portugal, d' Oliveira; Carisi Anne, Polanczyk.

    2012-07-01

    Full Text Available Análises de impacto orçamentário (AIO) fornecem previsões financeiras operacionais para a implementação de uma nova tecnologia em um sistema de saúde. Até o momento, não havia recomendações específicas para o desenvolvimento de AIO no Brasil. O presente trabalho apresenta uma revisão dos métodos usa [...] dos nas AIO de tecnologias da saúde e propõe recomendações para seu uso nos âmbitos do SUS e do sistema de saúde suplementar. As recomendações principais são: analisar pela perspectiva do gestor; empregar horizonte temporal de um a cinco anos; comparar cenários de referência e alternativos; considerar taxa de incorporação da tecnologia; delimitar a população de interesse pela abordagem epidemiológica ou por demanda aferida; considerar restrições para acesso ou fatores indutores de demanda; considerar custos diretos incorridos e evitados; não ajustar para inflação ou descontos; integrar as informações em planilha eletrônica; calcular o impacto orçamentário diferencial entre cenários; sintetizar as informações em um relatório de impacto orçamentário. Abstract in english Budget impact analysis (BIA) provides operational financial forecasts to implement new technologies in healthcare systems. There were no previous specific recommendations to conduct such analyses in Brazil. This paper reviews BIA methods for health technologies and proposes BIA guidelines for the pu [...] blic and private Brazilian healthcare system. The following recommendations were made: adopt the budget administrator's perspective; use a timeframe of 1 to 5 years; compare reference and alternative scenarios; consider the technology's rate of incorporation; estimate the target population by either an epidemiological approach or measured demand; consider restrictions on technologies' indication or factors that increase the demand for them; consider direct and averted costs; do not adjust for inflation or discounts; preferably, integrate information on a spreadsheet; calculate the incremental budget impact between scenarios; and summarize information in a budget impact report.

  6. Bioelectrical impedance phase angle in clinical practice: implications for prognosis in stage IIIB and IV non-small cell lung cancer

    Directory of Open Access Journals (Sweden)

    Grutsch James F

    2009-01-01

    Full Text Available Abstract Background A frequent manifestation of advanced lung cancer is malnutrition, timely identification and treatment of which can lead to improved patient outcomes. Bioelectrical impedance analysis (BIA is an easy-to-use and non-invasive technique to evaluate changes in body composition and nutritional status. We investigated the prognostic role of BIA-derived phase angle in advanced non-small cell lung cancer (NSCLC. Methods A case series of 165 stages IIIB and IV NSCLC patients treated at our center. The Kaplan Meier method was used to calculate survival. Cox proportional hazard models were constructed to evaluate the prognostic effect of phase angle, independent of stage at diagnosis and prior treatment history. Results 93 were males and 72 females. 61 had stage IIIB disease at diagnosis while 104 had stage IV. The median phase angle was 5.3 degrees (range = 2.9 – 8. Patients with phase angle 5.3 had 12.4 months (95% CI: 10.5 to 18.7; n = 84; (p = 0.02. After adjusting for age, stage at diagnosis and prior treatment history we found that every one degree increase in phase angle was associated with a relative risk of 0.79 (95% CI: 0.64 to 0.97, P = 0.02. Conclusion We found BIA-derived phase angle to be an independent prognostic indicator in patients with stage IIIB and IV NSCLC. Nutritional interventions targeted at improving phase angle could potentially lead to an improved survival in patients with advanced NSCLC.

  7. Volume and Nutritional Status Evaluated by Bioimpedance Affected by Body Positions

    Directory of Open Access Journals (Sweden)

    Ender HÜR

    2014-01-01

    Full Text Available OBJECTIVE: Body composition analysis is useful technique for assessing hydration, nutritional status and predicting clinical outcomes. Bioimpedance analysis (BIA is a cheap and noninvasive tool for monitoring body composition but needs some improvements regarding measurement methods. We aimed to fi nd out if body position has an effect on the BIA results. MATERIAL and METHODS: Personal characteristics including age, gender, height, weight and blood pressure were recorded. Hydration and nutritional status measured by body composition monitor in supine and standing positions consequently for each individual. RESULTS: Two hundred and one populations from various region in Turkey, 61% (n: 123 male, mean age was 46.3±12 years (18-76 of age, participated in this crossectional study. From supine to standing positions overhydration and extracellular water (ECW were increased from 0.04±1.08 and 17.69±2.92 to 0.46±1.05 L and 17.84±2.90 L while intracellular water (ICW decreased from 22.55±4.35 to 22.04±4.28 L signifi cantly. Systolic and diastolic blood pressures were 131.3±18.1 and 75.1±12 decreased to 127.0±16.0 and 72.2±9.0 mmHg in supine to standing positions (p> 0.05. CONCLUSION: Supine and standing positions could affect the volume parameters of BIA due to shift of ECW and ICW by gravity but nutritional parameters also changes signifi cantly. Protocols should be re evaluated in order to get more accurate results in bioimpedance measurements.

  8. Equity in the allocation of public sector financial resources in low- and middle-income countries: a systematic literature review.

    Science.gov (United States)

    Anselmi, Laura; Lagarde, Mylene; Hanson, Kara

    2015-05-01

    This review aims to identify, assess and analyse the evidence on equity in the distribution of public health sector expenditure in low- and middle-income countries. Four bibliographic databases and five websites were searched to identify quantitative studies examining equity in the distribution of public health funding in individual countries or groups of countries. Two different types of studies were identified: benefit incidence analysis (BIA) and resource allocation comparison (RAC) studies. Quality appraisal and data synthesis were tailored to each study type to reflect differences in the methods used and in the information provided. We identified 39 studies focusing on African, Asian and Latin American countries. Of these, 31 were BIA studies that described the distribution, typically across socio-economic status, of individual monetary benefit derived from service utilization. The remaining eight were RAC studies that compared the actual expenditure across geographic areas to an ideal need-based distribution. Overall, the quality of the evidence from both types of study was relatively weak. Looking across studies, the evidence confirms that resource allocation formulae can enhance equity in resource allocation across geographic areas and that the poor benefits proportionally more from primary health care than from hospital expenditure. The lack of information on the distribution of benefit from utilization in RAC studies and on the countries' approaches to resource allocation in BIA studies prevents further policy analysis. Additional research that relates the type of resource allocation mechanism to service provision and to the benefit distribution is required for a better understanding of equity-enhancing resource allocation policies. PMID:24837639

  9. Evolution of morphine biosynthesis in opium poppy.

    Science.gov (United States)

    Ziegler, Jörg; Facchini, Peter J; Geissler, René; Schmidt, Jürgen; Ammer, Christian; Kramell, Robert; Voigtländer, Susan; Gesell, Andreas; Pienkny, Silke; Brandt, Wolfgang

    2009-01-01

    Benzylisoquinoline alkaloids (BIAs) are a group of nitrogen-containing plant secondary metabolites comprised of an estimated 2500 identified structures. In BIA metabolism, (S)-reticuline is a key branch-point intermediate that can be directed into several alkaloid subtypes with different structural skeleton configurations. The morphinan alkaloids are one subclass of BIAs produced in only a few plant species, most notably and abundantly in the opium poppy (Papaver somniferum). Comparative transcriptome analysis of opium poppy and several other Papaver species that do not accumulate morphinan alkaloids showed that known genes encoding BIA biosynthetic enzymes are expressed at higher levels in P. somniferum. Three unknown cDNAs that are co-ordinately expressed with several BIA biosynthetic genes were identified as enzymes in the pathway. One of these enzymes, salutaridine reductase (SalR), which is specific for the production of morphinan alkaloids, was isolated and heterologously overexpressed in its active form not only from P. somniferum, but also from Papaver species that do not produce morphinan alkaloids. SalR is a member of a class of short chain dehydrogenase/reductases (SDRs) that are active as monomers and possess an extended amino acid sequence compared with classical SDRs. Homology modelling and substrate docking revealed the substrate binding site for SalR. The amino acids residues conferring salutaridine binding were compared to several members of the SDR family from different plant species, which non-specifically reduce (-)-menthone to (+)-neomenthol. Previously, it was shown that some of these proteins are involved in plant defence. The recruitment of specific monomeric SDRs from monomeric SDRs involved in plant defence is discussed. PMID:19665152

  10. Lipid and moisture content modeling of amphidromous Dolly Varden using bioelectrical impedance analysis

    Science.gov (United States)

    Stolarski, J.T.; Margraf, F.J.; Carlson, J.G.; Sutton, T.M.

    2014-01-01

    The physiological well-being or condition of fish is most commonly estimated from aspects of individual morphology. However, these metrics may be only weakly correlated with nutritional reserves stored as lipid, the primary form of accumulated energy in fish. We constructed and evaluated bioelectrical impedance analysis (BIA) models as an alternative method of assessing condition in amphidromous Dolly Varden Salvelinus malma collected from nearshore estuarine and lotic habitats of the Alaskan Arctic. Data on electrical resistance and reactance were collected from the lateral and ventral surfaces of 192 fish, and whole-body percent lipid and moisture content were determined using standard laboratory methods. Significant inverse relationships between temperature and resistance and reactance prompted the standardization of these data to a constant temperature using corrective equations developed herein. No significant differences in resistance or reactance were detected among spawning and nonspawning females after accounting for covariates, suggesting that electrical pathways do not intersect the gonads. Best-fit BIA models incorporating electrical variables calculated from the lateral and ventral surfaces produced the strongest associations between observed and model-predicted estimates of proximate content. These models explained between 6% and 20% more of the variability in laboratory-derived estimates of proximate content than models developed from single-surface BIA data and 32% more than models containing only length and weight data. While additional research is required to address the potential effects of methodological variation, bioelectrical impedance analysis shows promise as a way to provide high-quality, minimally invasive estimates of Dolly Varden lipid or moisture content in the field with only small increases in handling time.

  11. Metabolismo de repouso de mulheres pós-menopausadas submetidas a programa de treinamento com pesos (hipertrofia) Resting metabolism of post-menopause women submitted to a training program with weights (hypertrophy)

    OpenAIRE

    Mara Cléia Trevisan; Roberto Carlos Burini

    2007-01-01

    O estudo objetivou avaliar o gasto energético de repouso (GER) de mulheres pós-menopausadas submetidas a programa de treinamento com pesos. Foram estudadas 30 mulheres (FSH > 40mIU/mL) entre 45 e 70 anos, separadas em dois grupos (GT: treinamento, n = 15 e GC: controle, n = 15). Calculou-se o índice de massa corporal (kg/m²) e por meio da impedância bioelétrica (BIA) determinaram-se o percentual de gordura corporal e a massa muscular. O GER foi obtido por meio da calorimetria indireta (O2 e C...

  12. Seasonal variability of methane in the rivers and lagoons of Ivory Coast (West Africa)

    OpenAIRE

    Kone, Y. J. M.; Abril, G.; Delille, Bruno; Borges, Alberto

    2010-01-01

    We report a data-set of dissolved methane (CH4) in three rivers (Como,, Bia and Tano,) and five lagoons (Grand-Lahou, Ebri,, Potou, Aby and Tendo) of Ivory Coast (West Africa), during the four main climatic seasons (high dry season, high rainy season, low dry season and low rainy season). The surface waters of the three rivers were over-saturated in CH4 with respect to atmospheric equilibrium (2221-38719%), and the seasonal variability of CH4 seemed to be largely controlled by dilution during...

  13. Vicia grandiflora Scop. in plant communities of central eastern Poland

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    Marek T. Ciosek

    2002-12-01

    Full Text Available Results of studies on distribution of Vicia grandiflora in central eastern Poland and its occurrence in various plant communities are given in the paper. For the first time the species was noted in ?ochów in 1983. Nowadays 26 stations of Vicia grandiflora from Vicietum tetraspermae community, roadsides, wastelands and meadows are known. At 3 stations (localities: ?ochów, Bia?ki near Siedlce, Wodynie the species occurs abundantly and shows expansive character. At the remaining localities Vicia grandiflora occurs in small numbers. Explanation of its behavior - possible expansiveness - requires further studies.

  14. Changes in body fluid and energy compartments during prolonged hunger strike

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    Faintuch Joel

    2000-01-01

    Full Text Available Prolonged total food deprivation in non-obese adults is rare, and few studies have documented body composition changes in this setting. In a group of eight hunger strikers who refused alimentation for 43 days, water and energy compartments were estimated, aiming to assess the impact of progressive starvation. Measurements included body mass index (BMI, triceps skinfold (TSF, arm muscle circumference (AMC, and bioimpedance (BIA determinations of water, fat, lean body mass (LBM, and total resistance. Indirect calorimetry was also performed in one occasion. The age of the group was 43.3±6.2 years (seven males, one female. Only water, intermittent vitamins and electrolytes were ingested, and average weight loss reached 17.9%. On the last two days of the fast (43rd-44th day rapid intravenous fluid, electrolyte, and vitamin replenishment were provided before proceeding with realimentation. Body fat decreased approximately 60% (BIA and TSF, whereas BMI reduced only 18%. Initial fat was estimated by BIA as 52.2±5.4% of body weight, and even on the 43rd day it was still measured as 19.7±3.8% of weight. TSF findings were much lower and commensurate with other anthropometric results. Water was comparatively low with high total resistance, and these findings rapidly reversed upon the intravenous rapid hydration. At the end of the starvation period, BMI (21.5±2.6 kg/m² and most anthropometric determinations were still acceptable, suggesting efficient energy and muscle conservation. Conclusions: 1 All compartments diminished during fasting, but body fat was by far the most affected; 2 Total water was low and total body resistance comparatively elevated, but these findings rapidly reversed upon rehydration; 3 Exaggerated fat percentage estimates from BIA tests and simultaneous increase in lean body mass estimates suggested that this method was inappropriate for assessing energy compartments in the studied population; 4 Patients were not morphologically malnourished after 43 days of fasting; however, the prognostic impact of other impairments was not considered in this analysis.

  15. Ten years of regeneration dynamics in an unexploited lime-hornbeam forest in the Bialowieza National Park (Poland): an assessment of the variability of the forest mosaic

    OpenAIRE

    Koop, H. G. J. M.; Bijlsma, R. J.

    2007-01-01

    Changes in tree species composition and the forest mosaic over the 1982û1992 period are described for a one-hectare plot in an unexploited lime-hornbeam forest in the Biaowie¿a National Park (Poland). For trees 10 m the total numbers declined slightly, basal and crown projection area remained stable, and crown volume increased, resulting in a denser canopy. Picea abies had the highest annual mortality rate (3%), Carpinus betulus the lowest (0.2%). For trees with height ú 10 m, Carpinus h...

  16. What´s cheapest, intravenous iron sucrose- or intravenous iron carboxymaltose treatment in IBD patients? : It dependent on the economic evaluation perspective!

    DEFF Research Database (Denmark)

    Bager, Palle; Dahlerup, Jens Frederik

      What´s cheapest, intravenous iron sucrose- or intravenous iron carboxymaltose treatment in IBD patients? It dependent on the economic evaluation perspective!   Aim: To evaluate the health care cost for intravenous iron sucrose (Venofer®, Vifor) and intravenous iron carboxymaltose (Ferinject®, Vifor) treatment to IBD patients in an outpatient setting.   Background: Intravenous iron sucrose can be given as a maximum of 200 mg Fe++ per infusion vs. intravenous iron carboxymaltose that can be given as a maximum of 1000 mg Fe++ in a single infusion leading to fewer infusions and visits. The drug-cost per mg iron is for iron carboxymaltose approximately double the cost of iron sucrose.   Patients and Methods: Data related to 111 IBD-patients treated with intravenous iron at Aarhus University Hospital from August 2005 until October 2009 was used for the economic evaluation. Analysis included a Budget Impact Analysis (BIA) from a hospital perspective, a Cost Effective Analysis (CEA) from a patient perspective and a Cost Benefit Analysis (CBA) consecutively including 20 IBD patients' willingness-to-pay' (WTP) assessment. BIA and CEA analysis were based on total infusion-doses from 500 mg Fe++ till 1600 mg Fe++. The WTP analysis was based on a total infusion-dose at 1400 mg Fe++. The evaluations are analysed assuming that the effect parameter (quantity of iron delivered) is comparable regardless of the iron formulation given intravenously.   Results: The BIA including price for drug, utensils and ½ hour spend by a nurse per visit; showed approximately 150€ extra cost per 1000 mg Fe++ administrated, if iron carboxymaltose was chosen. In contrast the CEA including both BIA-values and patient-related costs (transportation and lost income) showed iron carboxymaltose to be more cost-effective than iron sucrose, due to fewer outpatient setting visits. As IBD-patients could have less income as the average of the background population due to disease activity, sensitivity analysis using a 50% income level weredone, showing the same tendency but less significant. The average patients WTP for a total of iron-dose was to 233€ to reduce the numbers of infusion from 7 till 2.    Conclusion: The cost of choosing iron carboxymaltose rather than iron sucrose in treatment of iron deficiency in IBD differs depending of the economic perspective chosen. Only the Budget Impact Analysis showed iron sucrose to be the cheapest. If the patients' perspective is included in the economic evaluation iron carboxymaltose is the most cost-effective.

  17. New records of Lobaria amplissima (Lobariaceae, Ascomycota in Poland

    Directory of Open Access Journals (Sweden)

    Anna Zalewska

    2012-06-01

    Full Text Available The current knowledge on the occurrence of Lobaria amplissima, a very rare old-growth forest lichen in Poland, is discussed. Both previous and new localities are presented. The Bia?owie?a Forest, from which L. amplissima is reported, is a refuge site of L. amplissima in the lowland forests of Central Europe. The most important data on the ecology and the general distribution of the species are given. Diagnostic characters related to the morphology, anatomy and chemistry of L. amplissima differentiating it from similar species are described.

  18. «¿Entiendes lo que estás leyendo?»: (Hch 8,30) Acerca de la traducción de la Biblia de la Iglesia en América / «Do you understand what you read?»: (Acts 8,30) About the translation of the Bible of the Church in America

    Scientific Electronic Library Online (English)

    Santiago, Silva Retamales.

    2012-09-01

    Full Text Available El presente artículo tiene como objetivo presentar los criterios utilizados para la traducción de la Sagrada Escritura llamada Biblia de la Iglesia en América (BIA). Lo que se busca responder es ¿Qué hermenéutica está en la base de esta nueva traducción promovida por el Consejo Episcopal Latinoameri [...] cano (CELAM)?. Estas páginas quieren destacar que la Sagrada Escritura no es un libro cualquiera sino que se trata de la expresión literaria de la religión de un pueblo. Por otra parte, el tema de este artículo puede ayudar al lector a evaluar la calidad de las traducciones bíblicas que circulan en la actualidad y a determinar los criterios que permitan saber cuándo usar una traducción y cuándo emplear otra. Abstract in english This article aims to present the criteria used for the translation of the Bible called the Holy Scriptures of the Church in America (BIA). We seek to answer the question: What is the basis hermeneutics of this new translation sponsored by the Latin American Episcopal Council (CELAM)? These pages wan [...] t to emphasize that Scripture is not just any book, but it is the literary expression of the religion of a people. Moreover, the theme of this article can help the reader to evaluate the quality of biblical translations currently circulating and the criteria for determining when to use a translation or another.

  19. «¿Entiendes lo que estás leyendo?»: (Hch 8,30 Acerca de la traducción de la Biblia de la Iglesia en América «Do you understand what you read?»: (Acts 8,30 About the translation of the Bible of the Church in America

    Directory of Open Access Journals (Sweden)

    Santiago Silva Retamales

    2012-09-01

    Full Text Available El presente artículo tiene como objetivo presentar los criterios utilizados para la traducción de la Sagrada Escritura llamada Biblia de la Iglesia en América (BIA. Lo que se busca responder es ¿Qué hermenéutica está en la base de esta nueva traducción promovida por el Consejo Episcopal Latinoamericano (CELAM?. Estas páginas quieren destacar que la Sagrada Escritura no es un libro cualquiera sino que se trata de la expresión literaria de la religión de un pueblo. Por otra parte, el tema de este artículo puede ayudar al lector a evaluar la calidad de las traducciones bíblicas que circulan en la actualidad y a determinar los criterios que permitan saber cuándo usar una traducción y cuándo emplear otra.This article aims to present the criteria used for the translation of the Bible called the Holy Scriptures of the Church in America (BIA. We seek to answer the question: What is the basis hermeneutics of this new translation sponsored by the Latin American Episcopal Council (CELAM? These pages want to emphasize that Scripture is not just any book, but it is the literary expression of the religion of a people. Moreover, the theme of this article can help the reader to evaluate the quality of biblical translations currently circulating and the criteria for determining when to use a translation or another.

  20. Estimation of total body water by bioelectrical impedance analysis

    International Nuclear Information System (INIS)

    Total body water (TBW) measured by bioelectrical impedance analysis (BIA) was directly compared with deuterium-isotope dilution in a total of 58 subjects. First, sex-specific and group equations were developed by multiple regression analysis in (10 each) obese and nonobese men and women. Height/resistive impedance was the most significant variable used to predict deuterium-dilution space (D2O-TBW) and, combined with weight, yielded R = 0.99 and SE of estimate = 1.75 L. Equations predicted D2O-TBW equally well for obese and nonobese subjects. Second, the equations were prospectively tested in a heterogeneous group of 6 males and 12 females. Sex-specific equations predicted D2O-TBW with good correlation coefficients (0.96 and 0.93), total error (2.34 and 2.89 L), and a small difference between mean predicted and measured D2O-TBW (-1.4 +/- 2.05 and -0.48 +/- 2.83 L). BIA predicts D2O-TBW more accurately than weight, height, and/or age. A larger population is required to validate the applicability of our equations

  1. Impact of hemodialysis on dual X-ray absorptiometry, bioelectrical impedance measurements, and anthropometry

    DEFF Research Database (Denmark)

    Abrahamsen, Bo; Hansen, T B

    1996-01-01

    Dual X-ray absorptiometry (DXA) performs noninvasive assessment of bone and soft tissue with high precision. However, soft tissue algorithms assume that 73.2% of the lean body mass is water, a potential source of error in fluid retention. We evaluated DXA (model QDR-2000; Hologic Inc, Waltham, MA), bioelectrical impedance analysis (BIA), and simple anthropometry in 19 patients (9 women and 10 men, mean age 46 y) before and after hemodialysis, removing 0.9-4.3 L (x: 2.8L) of ultrafiltrate. The reduction in fat-free mass (FFM) measured by DXA was highly correlated with the ultrafiltrate, as determined by the reduction in gravimetric weight (r = 0.975, P <0.0001; SEE: 233 g), whereas BIA was considerably less accurate in assessing FFM reductions (r = 0.66, P <0.01; SEE: 757 g). Lumbar bone mineral density (BMD) was unaffected by dialysis, as were whole-body fat and BMD. Whole-body bone mineral content, however, was estimated to be 0.6% lower after dialysis. None of the simple anthropometric measurements correlated significantly with the reduction in FFM. In an unmodified clinical setting, DXA appears to be superior to other simple noninvasive methods for determining body composition, particularly when the emphasis is on repeated measurements.

  2. A study of percentage body fat in children via dual energy X-ray absorptiometry (DEXA)

    International Nuclear Information System (INIS)

    Percentage body fat was measured using dual energy X-ray absorptiometry (DEXA), bioelectrical impedance analysis (BIA) and skin fold calipers on 26 children (nine in obesity group, 12 in healthy group and 5 in steroid treated group). Mean percent body fat did not differ significantly between methods in the whole subjects as well as the healthy group and the steroid treated group. However, the mean percent body fat using skin fold caliper was higher for the obesity group than the other two. The measurements of all cases in the obesity group by DEXA were higher than those of BIA. There were high correlations among the percent body fat obtained by each technique. According to the analysis of mean regional percent fat, the percent fat of legs was the highest in the healthy and steroid treated group, while there was no regional difference in the obesity group. It should be possible to classify each case in the obesity group into upper segment and lower segment obesity by DEXA. (author)

  3. Biodiversity Impact Assessment of roads: an approach based on ecosystem rarity

    International Nuclear Information System (INIS)

    Biodiversity has become one of the central environmental issues in the framework of recent policies and international conventions for the promotion of sustainable development. The reduction of habitat worldwide is currently considered as the main threat to biodiversity conservation. Transportation infrastructures, and above all road networks, are blamed for highly contributing to the decrease in both the quantity and the quality of natural habitat. Therefore, a sound Biodiversity Impact Assessment (BIA) in road planning and development needs to be coupled to other commonly considered aspects. This paper presents an approach to contribute to BIA of road projects that focuses on one type of impact: the direct loss of ecosystems. The first step consists in mapping the different ecosystem types, and in evaluating their relevance for biodiversity conservation. This is based on the assessment of ecosystem's rarity. Rarity is a measure of how frequently an ecosystem type is found within a given area. Its relevance is confirmed by the fact that the protection of rare ecosystems is often considered as the single most important function of biodiversity conservation. Subsequently, the impact of a road project can be quantified by spatially computing the expected losses of each ecosystem type. To illustrate the applicability of the methodology, a case study is presented dealing with the assessment of alternative routes for a highway development in northern Italyopment in northern Italy

  4. Body composition by underwater weighing and bioelectrical impedance methods in college students

    Directory of Open Access Journals (Sweden)

    Cândido S. Pires Neto

    1999-12-01

    Full Text Available The objective of this study was to determine and to compare % fat, LBM and FM of male and female college students measured by hydrostatic weighing and bioelectrical impedance assessment (BIA. To this end, 115 subjects (57 male and 58 female, aged 18 to 30, were assessed by BIA and hydrostatic weighing, which was adopted as the gold standard. The t test for dependent samples revealed that there was a statistically signifi cant difference (p RESUMO objetivo desse estudo foi determinar e comparar o percentual de gordura, massa corporal magra (MCM e massa gorda (MG obtidos pelos métodos da pesagem hidrostática e impedância bioelétrica em universitários dos sexos masculino e feminino. Para tanto, foram avaliados 115 sujeitos (57 homens e 58 mulheres entre 18 e 30 anos de idade através da impedância bioelétrica (IB e pesagem hidrostática (PH, que foi o método adotado como critério. O teste t para amostras dependentes revelou que houve diferença estatística significante, p < 0,001, entre os valores médios das variáveis da composição corporal, apesar da correlação de Pearson entre o %G, MG e MCM decorrente dos dois métodos, terem sido significantes, p < 0,001. Concluímos que a utilização da IB como recurso para as estimativas dos componentes da composição corporal sugere extrema cautela na interpretação dos mesmos.

  5. Cytoskyrins and Cytosporones Produced by Cytospora sp. CR200: Taxonomy, Fermentation and Biological Activities

    Directory of Open Access Journals (Sweden)

    Sean F. Brady

    2007-07-01

    Full Text Available In screening endophytic fungi from Costa Rica for bioactivity, fungal culture CR200, isolated from a buttonwood tree, was found to contain compounds that initiate DNA damage in a test strain of E. coli (Biochemical Induction Assay, BIA and inhibit growth of Gram-positive bacteria, including antibiotic-resistant strains. Two new bisanthraquinones (cytoskyrins A and B and five new related octaketides (cytosporones A-E were isolated from fermentation broths of this fungus. Cytoskyrin A exhibited potent in-vitro antibacterial (MICs against Gram-positive bacteria, 0.03 - 0.25 μg/mL and DNA-damaging activities (10 ng/spot, whereas cytoskyrin B was inactive in these assays. Among the cytosporones, only D and E exhibited Gram-positive activity, but they were inactive in the BIA. Mechanistically, cytoskyrin A specifically inhibited DNA synthesis in E. coli imp at its MIC; however, it also moderately inhibited protein synthesis at 2x its MIC. Cytoskyrin A exhibited poor cytotoxicity against tumor cell lines (IC50 > 5 μg/mL compared to known antitumor agents. The nuclear ribosomal internal transcribed spacer region of CR200 was found to share highest similarity (94-96% with Cytospora spp. Micro- and macroscopic morphological observations of the conidia and conidiomata, respectively, also suggested this fungus to be a Cytospora sp.

  6. Effects of Intense Physical Activity with Free Water Replacement on Bioimpedance Parameters and Body Fluid Estimates

    International Nuclear Information System (INIS)

    Authors have emphasized the need for previous care in order to perform reliable bioimpedance acquisition. Despite of this need some authors have reported that intense physical training has little effect on Bioimpedance Analysis (BIA), while other ones have observed significant effects on bioimpedance parameters in the same condition, leading to body composition estimates considered incompatible with human physiology. The aim of this work was to quantify the changes in bioimpedance parameters, as well as in body fluids estimates by BIA, after four hours of intense physical activity with free water replacement in young males. Xitron Hydra 4200 equipment was used to acquire bioimpedance data before and immediately after the physical training. After data acquisition body fluids were estimates from bioimpedance parameters. Height and weight of all subjects were also acquired to the nearest 0.1 cm and 0.1 kg, respectively. Results point that among the bioimpedance parameter, extracellular resistance presented the most coherent behavior, leading to reliable estimates of the extracellular fluid and part of the total body water. Results also show decreases in height and weight of the participants, which were associated to the decrease in body hydration and in intervertebral discs.

  7. Measuring obesity: results are poles apart obtained by BMI and bio-electrical impedance analysis

    Directory of Open Access Journals (Sweden)

    Rashee Mittal

    2011-11-01

    Full Text Available Objective: To analyse the use of BMI and bioelectrical impedance analysis (BIA in assessment of adiposity among young and elderly population. Materials and methods: Age, height, weight and percent body fat (PBF of 101 young and 276 elder subjects were recorded. PBF was measured directly by BIA instrument (PBFb and also calculated from BMI (PBFf. The classification of subjects into underweight, normal, overweight and obese was based on the age- and sex-specific BMI cutoff values and PBFb following standard guidelines. Results: The calculated mean BMI values of young and old age groups were statistically same. PBF was significantly high in elder subjects. There was no statistical difference in mean PBFb and PBFf in young subjects but the difference was significant in elder subjects. The PBFf values were highly correlated (r: 0.92 to 0.96 with PBFb values in young age groups unlike elder groups of both males and females. PBFb based categorization of subjects’ presented totally different scenario compared to results obtained by BMI analysis to assess adiposity. Conclusion: The cases such as increasing fatness with aging even when BMI remains constant, the causes of country or ethnic differences in BMI analysis, poor correlation in PBFb and PBFf values in elder age group emphasize on the limitations of BMI based analysis. PBFb within limitations seems to be an improved phenotypic characteristic over BMI.

  8. Relationship between history of smoking, metabolic and inflammatory markers, parameters of body composition and muscle strength.

    Science.gov (United States)

    Rom, O; Karkabi, K; Reznick, A Z; Keidar, Z; Aizenbud, D

    2015-01-01

    The objective of this study was to investigate the relationship between smoking history expressed by pack-years, metabolic and inflammatory markers, parameters of body composition (BC) and muscle strength among heavy smokers. A detailed smoking history was obtained from 49 heavy smokers (age?=?44?±?12, pack-years?=?31?±?23). Blood samples were analyzed for levels of glucose, lipids, liver enzymes and C-reactive protein (CRP). Anthropometric measurements included waist circumference and assessment of BC by dual energy X-ray absorptiometry (DEXA) and bioelectrical impedance analysis (BIA). Muscle strength was assessed by handgrip dynamometry and predicted one-repetition maximum (p1RM) tests. Positive correlations were found between pack-years of smoking, fasting glucose, alkaline phosphatase and CRP levels. Pack-years were also positively correlated with waist circumference, body mass index (BMI), whole-body and trunk fat mass measured by both DEXA and BIA. A negative correlation was found between pack-years of smoking and muscle strength measured by p1RM for the leg press exercise. After adjustment for age, sex and BMI, a positive correlation remained between pack-years of smoking and CRP levels. In conclusion, after controlling for possible confounders, smoking history was found to be positively associated with CRP levels among heavy smokers. PMID:25468009

  9. Prediction of fat-free body mass from bioelectrical impedance and anthropometry among 3-year-old children using DXA

    DEFF Research Database (Denmark)

    Ejlerskov, Katrine Tschentscher; Jensen, Signe Marie

    2014-01-01

    For 3-year-old children suitable methods to estimate body composition are sparse. We aimed to develop predictive equations for estimating fat-free mass (FFM) from bioelectrical impedance (BIA) and anthropometry using dual-energy X-ray absorptiometry (DXA) as reference method using data from 99 healthy 3-year-old Danish children. Predictive equations were derived from two multiple linear regression models, a comprehensive model (height(2)/resistance (RI), six anthropometric measurements) and a simple model (RI, height, weight). Their uncertainty was quantified by means of 10-fold cross-validation approach. Prediction error of FFM was 3.0% for both equations (root mean square error: 360 and 356 g, respectively). The derived equations produced BIA-based prediction of FFM and FM near DXA scan results. We suggest that the predictive equations can be applied in similar population samples aged 2-4 years. The derived equations may prove useful for studies linking body composition to early risk factors and early onsetof obesity.

  10. Patogeneza zaka?e? wywo?anych przez Candida albicans

    Directory of Open Access Journals (Sweden)

    Urszula Nawrot

    2002-09-01

    Full Text Available Zastosowanie technik biologii molekularnej w badaniach nad patogenez? kandydozy pozwoli?o znacznie poszerzy? nasz? wiedz? o czynnikach wirulencji Candida albicans. Zidentyfikowano i sklonowano szereg genów koduj?cych bia?ka regulacyjne (np. CPH1, EFG1, TUP1, CAP1, strukturalne (np. HWP1, ALS1, ALA1, INT1 oraz enzymatyczne (SAP1-10, PLB1 tych drobnoustrojów. Badania z u?yciem mutantów z delecj? poszczególnych genów umo?liwiaj? okre?lenie funkcji kodowanych przez nie bia?ek oraz pozwalaj? wykry? te z nich, które s? niezb?dne w patogenezie kandydozy. Za najwa?niejsze czynniki chorobotwórczo?ci Candida albicans uwa?ane s?: zmienno?? morfologiczna i antygenowa, adhezja do nab?onków i ?ródb?onków, produkcja zewn?trzkomórkowych enzymów proteolitycznych i fosfolipaz. Równie? takie czynniki, jak aktywno?? hemolityczna, produkcja toksyn (glioto-ksyna, wydzielanie enzymów hydrolitycznych wydaj? si? mie? znaczenie w wirulencji. Celem niniejszego opracowania jest przedstawienie krótkiej charakterystyki poszczególnych czynników zjadliwo?ci Candida albicans oraz aktualnych pogl?dów na ich rol? w patogenezie kandydozy.

  11. Screening for sarcopenia in obesity

    International Nuclear Information System (INIS)

    Sarcopenia is a progressive and generalized loss of skeletal muscle mass (SM) and function which can also be found in obese adults. The aim of the study was to evaluate the prevalence of sarcopenia in 1 245 obese women (18 – 67 years, weight 114.7±24.5 kg; BMI 44.1±9.2; fat mass 49.0±6.2%) from Southern Italy. Body composition was evaluated by bioimpedance analysis (BIA) and SM calculated by using Janssen's equation; therefore the sex-specific cut-off points of percentage skeletal muscle index were used. The whole population was divided in two age groups: A (18-40 years; n. 808; weight 115.4±23.5 kg; BMI 43.8±8.8 kg/m2) and B (41-67 years; n. 438; weight 113.4±26.3 kg; BMI 44.8±9.9 kg/m2). In all the sample there was 2.7% moderate and 0.6% severe sarcopenia; in group A, 1.9% moderate and 0.6% severe sarcopenia whilst in group B 4.3% moderate and 0.7% severe sarcopenia. The results of our study suggest that, based on a screening examination by BIA, moderate/severe sarcopenia can be detected in an unselected middle-aged obese population. Further studies are required to clarify the diagnosis with functional tests.

  12. Multi-trait Analysis of Agroclimate Variations During the Growing Season in East-Central Poland (1971-2005)

    Science.gov (United States)

    Radzka, El?bieta; Rymuza, Katarzyna

    2015-04-01

    The work is based on meteorological data recorded by nine stations of the Institute of Meteorology and Water Management located in east-central Poland from 1971 to 2005. The region encompasses the North Podlasian Lowland and the South Podlasian Lowland. Average values of selected agroclimate indicators for the growing season were determined. Moreover, principal component analysis was conducted to indicate elements that exerted the greatest influence on the agroclimate. Also, cluster analysis was carried out to select stations with similar agroclimate. Ward method was used for clustering and the Euclidean distance was applied. Principal component analysis revealed that the agroclimate of east-central Poland was predominantly affected by climatic water balance, number of days of active plant growth, length of the farming period, and the average air temperature during the growing season (Apr-Sept). Based on the analysis, the region of east-central Poland was divided into two groups (areas) with different agroclimatic conditions. The first area comprized the following stations: Szepietowo and Bia?owie?a located in the North Podlasian Lowland and Bia?a Podlaska situated in the northern part of the South Podlasian Lowland. This area was characterized by shorter farming periods and a lower average air temperature during the growing season. The other group included the remaining stations located in the western part of both the Lowlands which was warmer and where greater water deficits were recorded.

  13. In?ynierowany jedwab paj?czy: inteligentny biomateria? przysz?o?ci. Cz??? II

    Directory of Open Access Journals (Sweden)

    Katarzyna Ka?mierska

    2011-06-01

    Full Text Available Opracowanie i rozwój technologii produkcji in?ynierowanego jedwabiu stworzy?y realne mo?liwo?ci jego praktycznych zastosowa?. Rekombinowany in?ynierowany paj?czy jedwab (IPJ stanowi substrat do produkcji ró?nych biomateria?ów, takich jak: filmy, hydro?ele, w?ókna, rusztowania, mikrokapsu?ki, mikro- i nanosfery. Wytwarzanie in vitro w?ókien odbywa si? w sposób na?laduj?cy warunki naturalnie panuj?ce w gruczole prz?dnym paj?ka: w obecno?ci jonów fosforanowych oraz si? ci?gn?cych. Filmy otrzymywane s? przez odparowanie rozpuszczalnika z roztworu jedwabiu, natomiast rezultatem odparowywania rozpuszczalnika w obecno?ci porogenu s? jedwabne rusztowania. Hydro?ele powstaj? w wyniku polimeryzacji cz?stek jedwabiu w roztworach o niskim pH. Polimer jedwabiu powstaj?cy na granicy niemieszaj?cych si? faz wykorzystywany jest do otrzymywania mikrokapsu?ek. Najmniejsze z opisywanych form – jedwabne sfery powstaj? przez wysolenie bia?ek jedwabiu jonami fosforanowymi. Cechami wspólnymi jedwabnych biomateria?ów s? biokompatybilno?? oraz biodegradowalno?? pozwalaj?ce na wykorzystanie ich w medycynie i farmacji, a strategia konstrukcji bia?ek hybrydowych polegaj?ca na nadaniu metodami in?ynierii genetycznej po??danej funkcji dalej rozszerza mo?liwo?ci ich wykorzystania.

  14. Dro?d?e jako model w badaniach chorób neurodegeneracyjnych

    Directory of Open Access Journals (Sweden)

    Donata Wawrzycka

    2011-06-01

    Full Text Available Dro?d?e piekarnicze Saccharomyces cerevisiae s? najlepiej poznanymi na poziomie genetyki i fizjologii komórki organizmami eukariotycznymi. Konserwatyzm molekularnych mechanizmów komórkowych mi?dzy dro?d?ami a cz?owiekiem pozwala na u?ycie komórek S. cerevisiae jako modelu do bada? mechanizmów doprowadzaj?cych do ró?nych chorób cz?owieka. Obecnie dro?d?e, cho? pozbawione uk?adu nerwowego, z powodzeniem u?ywane s? do bada? schorze? neurodegeneracyjnych, takich jak choroba Alzheimera, choroba Parkinsona czy choroba Huntingtona. Szeroki warsztat metod biologii molekularnej umo?liwia zarówno badanie homologów ludzkich genów w komórkach dro?d?y, jak i heterologiczn? ekspresj? ludzkich bia?ek. Przyczyny patologicznych zmian w ukszta?towaniu bia?ka, mutacje powoduj?ce zmian? funkcji lub tworzenie toksycznych agregatów – wszystkie te aspekty mog? i z powodzeniem s? badane z u?yciem modelu dro?d?owego. W pracy przedstawiono obecny stan wykorzystania modelu dro?d?owego w badaniach nad wyja?nieniem mechanizmów doprowadzaj?cych do schorze? neurodegeneracyjnych.

  15. Body composition analysis in head and neck squamous cell carcinoma.

    Science.gov (United States)

    Malecka-Massalska, Teresa; Smolen, Agata; Morshed, Kamal

    2014-10-01

    Direct bioimpedance measures [resistance, reactance, phase angle] determined by bioelectrical impedance analysis (BIA) detect changes in tissue electrical properties. Bioelectrical impedance analysis vector (BIVA) technique is a promising tool, using the pure data obtained by BIA evaluation for the screening and monitoring of nutrition and hydration status. BIVA has the potential to be used as a routine method in the clinical setting for the assessment and management of body fluids. The study was conducted to evaluate soft tissue hydration and mass through pattern analysis of vector plots as height, normalized resistance, and reactance measurements by bioelectric impedance vector analysis in patients with head and neck cancer. Whole body measurements were made with ImpediMed bioimpedance analysis in 134 adult, white, male subjects 22-87 years old: 67 patients with head and neck cancer (H&NC) and 67 healthy volunteers matched by sex, age and BMI as a control group. All patients were previously untreated and without active nutritional interventions. Mean vectors of H&NC group versus the control group were characterized by an increased normalized resistance component with a reduced reactance component (separate 95% confidence limits, P < 0.05). BIVA may offer objective measures to improve clinical decision-making and predict outcomes. In patients with H&NC to reduce post-operational complications monitoring bioimpedance vector trajectory may support therapy planning of individual patients before surgery. PMID:24264763

  16. Norcoclaurine synthase is a member of the pathogenesis-related 10/Bet v1 protein family.

    Science.gov (United States)

    Lee, Eun-Jeong; Facchini, Peter

    2010-10-01

    Norcoclaurine synthase (NCS) catalyzes the first committed step in the biosynthesis of benzylisoquinoline alkaloids (BIAs). NCS from Thalictrum flavum (Tf NCS), Papaver somniferum (Ps NCS1 and Ps NCS2), and Coptis japonica (Cj PR10A) share substantial identity with pathogen-related 10 (PR10) and Bet v1 proteins, whose functions are not well understood. A distinct enzyme (Cj NCS1) with similarity to 2-oxoglutarate-dependent dioxygenases was suggested as the bona fide NCS in C. japonica. Here, we validate the exclusive role of PR10/Bet v1-type NCS enzymes in BIA metabolism. Immunolocalization of Ps NCS2 revealed its cell type-specific occurrence in phloem sieve elements, which contain all other known BIA biosynthetic enzymes. In opium poppy, NCS transcripts and proteins were abundant in root and stem, but at low levels in leaf and carpel. Silencing of NCS in opium poppy profoundly reduced alkaloid levels compared with controls. Immunoprecipitation of NCS from total protein extracts of T. flavum cells resulted in a nearly complete attenuation of NCS activity. A Ps NCS2-green fluorescent protein fusion introduced by microprojectile bombardment into opium poppy cells initially localized to the endoplasmic reticulum but subsequently sorted to the vacuole. In our hands, Cj NCS1 did not catalyze the formation of (S)-norcoclaurine from dopamine and 4-hydroxyphenylacetaldehyde. PMID:21037103

  17. Screening for sarcopenia in obesity

    Science.gov (United States)

    Sammarco, R.; Marra, M.; Montagnese, C.; De Rosa, E.; Onufrio, M.; Amato, V.; Santarpia, L.; De Caprio, C.; Contaldo, F.; Pasanisi, F.

    2013-04-01

    Sarcopenia is a progressive and generalized loss of skeletal muscle mass (SM) and function which can also be found in obese adults. The aim of the study was to evaluate the prevalence of sarcopenia in 1 245 obese women (18 - 67 years, weight 114.7±24.5 kg; BMI 44.1±9.2 fat mass 49.0±6.2%) from Southern Italy. Body composition was evaluated by bioimpedance analysis (BIA) and SM calculated by using Janssen's equation; therefore the sex-specific cut-off points of percentage skeletal muscle index were used. The whole population was divided in two age groups: A (18-40 years; n. 808; weight 115.4±23.5 kg; BMI 43.8±8.8 kg/m2) and B (41-67 years; n. 438; weight 113.4±26.3 kg; BMI 44.8±9.9 kg/m2). In all the sample there was 2.7% moderate and 0.6% severe sarcopenia; in group A, 1.9% moderate and 0.6% severe sarcopenia whilst in group B 4.3% moderate and 0.7% severe sarcopenia. The results of our study suggest that, based on a screening examination by BIA, moderate/severe sarcopenia can be detected in an unselected middle-aged obese population. Further studies are required to clarify the diagnosis with functional tests.

  18. Contrapulsação em operação cardíaca: análise retrospectiva da incidência de infecção / Intra-aortic balloon pumping: incidense of complications related to its insertion

    Scientific Electronic Library Online (English)

    Luís Henrique Barbosa, Borges; Luis Fernando A, Camargo; Tânia Mara V, Strabelli; David E, Uip; José Otávio C, Auler Júnior.

    1994-06-01

    Full Text Available Recentes avanços tecnológicos ampliaram o uso do balão intra-aórtico como medida de suporte na insuficiência cardíaca aguda. Apesar disto, têm sido descritas algumas complicações relacionadas à sua inserção, duração do uso e localização. O objetivo deste estudo foi investigar retrospectivamente a oc [...] orrência de infecções em pacientes críticos que necessitaram do uso do balão intra-aórtico (BIA) após operação cardíaca. Entre janeiro de 1990 e julho de 1992, foram revisados os prontuários de 97 pacientes que necessitaram de BIA no pós-operatório de operação cardíaca, sendo que apenas 55 apresentavam informações completas que permitiram sua inclusão na revisão. Foram obtidas informações a respeito de ocorrência de infecções, resultados de culturas, tipo e tempo de duração das operações, tempo de circulação extracorpórea, duração da cateterização intravascular e evolução clínica. Foram considerados os seguintes locais de infecção: pulmão, urina, corrente sangüínea, ferida operatória e local de inserção do BIA. A média de permanência do BIA foi de 3,9 ± 2,01 dias e os tempos médios de operação e de circulação extracorpórea foram 8h e 2,5h, respectivamente. Observamos uma alta incidência de infecções nestes pacientes, principalmente pneumonia (63,6%). A taxa de infecção no local de inserção do BIA foi de 7% e maior que a taxa geral de infecção da ferida operatória em nossa Instituição (3%). Apesar desta alta incidência de infecções não relacionar-se diretamente com a taxa de mortalidade, sugerimos rigorosa vigilância com relação à ocorrência de infecções e possíveis medidas profiláticas em relação a infecções pulmonares Abstract in english The technological advances of recent years have permitted a wide range of uses for intraaort balloon pumping (IABP) to support acute cardiac failure in many clinical condition. In spite of this, some complications related to its insertion, duration of use and location have been described. The aim of [...] his study was to investigate the incidence of infections in severely compromised postoperative cardiac patients undergoing IABP therapy. Between January 1990 and July 1992, the records of 97 patients that required IABP support after cardiac surgery were reviewed, but only 55 met the criteria to be included. The analysis consited of: incidence of infections, culture results, type and duration of by-pass and surgery duration of intravascular catheterization and clinical outcome. The following sites of infection were considered: lung, urine, blood, surgical incision and IABP catheter insertion. The mean time of procedures were: IABP= 3.9 ± 2.01 days surgery an by-pass equal to 8.0 and 2.5 hours respectively. We observed a high incidence of infection in these patients, mainly pneumonia (63.6%). The IABP insertion infection rate was 7.0% higher than our general postoperative wound infection rate (3.0%). Although this relatively higher incidence of infection may not directly relate to the martality rate, we suggest that these patients must have extremely careful surveillance for ocurrence of infections and possible prophylactic measures regarding pulmonary infections.

  19. Determinación de receptores de estrógeno beta en carcinomas mamarios caninos

    Scientific Electronic Library Online (English)

    W.A, Merlo; V.E, Vargas; R.M, Insfrán; J.S, Benítez; A.S, Rosciani.

    2013-06-01

    Full Text Available El presente trabajo tuvo como objetivo determinar la presencia de receptores de estrógenos beta (RE?) en neoplasias mamarias malignas y relacionarla con otros parámetros de significación conocida. Se realizó la inmunomarcación por el sistema de biotina-estreptavidina-peroxidasa para RE? en muestras [...] obtenidas de 34 pacientes caninas con un seguimiento hasta dieciocho meses post cirugía. Se determinó el porcentaje de núcleos inmunomarcados según el tipo histológico (carcinoma simple: 51%, carcinoma complejo: 62%, carcinoma tumor mixto: 62%) y el grado histológico de malignidad de las neoplasias (GHI: 60% y GHII: 61%); el estadio clínico (ECI: 69%, ECII: 56%, ECIII: 59%, ECIV: 58% y ECV: 58%) y la sobrevida de las pacientes (vivas: 62% y muertas: 60%). Los resultados revelaron porcentajes de RE? más elevados, sólo en algunos grupos de mejor pronóstico, en coincidencia con lo expresado por otros autores. Se demuestra que en la especie canina, los hallazgos comunicados no son uniformes con respecto al valor pronóstico de este marcador. Abstract in english This work aims to communicate the determination of estrogen receptor beta (ER?) in mammary tumors of 34 canine patients whose evolution after eighteen months post surgery was known. Its presence was associated with clinical staging of patients, histological type, histological grading of the malignan [...] cy, and evolution. Immunostaining was performed by biotin-streptavidin-peroxidase system. Positive ER? immunostaining was observed in nuclei of carcinoma cells, myoepithelial cells and chondrocites. It was determined the percentage of nuclei immunolabeled according to histological type (simple carcinoma: 51%, complex carcinoma: 61%, mixed carcinoma: 63%), histologic grade of malignancy (GHI: 60% and GHII: 61%), the clinical stage (ECI: 68%, ECII: 56%, ECIII: 59%, ECIV: 58% and ECV 58%) and in accordance with survival at 18 months (live: 61% and dead: 60%). These results show higher percentages in groups of better prognosis (although no significant differences were established) in coincidence with the opinions expressed by others, except in reference to the histological grade of malignancy. These conflicting data suggest that further analysis to assess ER? prognostic potential in canine mammary tumors is needed.

  20. Compound-specific radiocarbon analysis of atmospheric PAH from a wood smoke-impacted city in Northern Sweden

    International Nuclear Information System (INIS)

    Full text: Atmospheric polycyclic aromatic hydrocarbons (PAHs) are ubiquitous due to their emission from a variety of combustion sources including motor vehicle exhaust and other fossil fuel combustion and biomass burning. Their potential to detrimentally impact human and ecological health makes it vital to apportion these compounds to emission sources. PAHs also have a wide range in volatility and can be present in both the gas and particulate phase in the atmosphere. However, PAHs present in high concentrations in the atmosphere are not source-specific and can be difficult to trace back to their original emission sources. Natural abundance radiocarbon analysis offers a trusted method for determining the fraction of modern versus fossil carbon and recent advances in micro-scale techniques have opened the door for compound class-specific radiocarbon analysis (CCSRA) of organic compounds at the low levels present in environmental samples. Atmospheric levels of PAHs provide a particular challenge due to difficulties in obtaining a sample with sufficient mass for radiocarbon analysis. Initial studies in Europe and Japan have shown a wide range of biomass burning contribution from 10 % of pooled PAHs for two background sites in south Europe to up to 45 % in Tokyo and 50 % at a background site in Sweden. Compound-specific radiocarbon analysis (CSRA) of atmospheric PAHs would further enhance the understanding of emission source impacts on ambient concentrations and has not cts on ambient concentrations and has not been previously reported. In this study, CSRA was applied to a set of atmospheric samples collected in Lycksele, a city in Northern Sweden which has frequent episodes of severe atmospheric pollution in the winter. Previous studies carried out in the city have shown that wood combustion for residential heating has a large impact on atmospheric aerosol followed by motor vehicle emissions. This combination provided an ideal location for CSRA to apportion atmospheric PAHs between fossil fuel combustion and wood smoke. In order to maximize sample collection mass, a high volume total suspended particulate matter (TSP) sampler loaded with quartz fiber filters for PM collection and PUFs (polyurethane foam) for volatile species was used in this study. Five different particulate PAH samples were analyzed by CSRA including: phenanthrene, fluoranthene, pyrene, benzo[b+k]fluoranthene and indeno[cd]pyrene+benzo[ghi]perylene whereas phenanthrene was the only compound also analyzed in the gas phase. The percentage wood smoke contribution ranged from 70 % for indeno[cd]pyrene+benzo[ghi]perylene to 87 % for the PUF phenanthrene and particulate pyrene. There was a distinct molecular-weight trend (r2 = 0.68) to the fraction wood smoke contribution with higher contribution for the lower molecular-weight PAHs. (author)

  1. Comparative assessment of the recognition of domain-specific CD163 monoclonal antibodies in human monocytes explains wide discrepancy in reported levels of cellular surface CD163 expression

    DEFF Research Database (Denmark)

    Maniecki, Maciej Bogdan; Etzerodt, Anders

    2011-01-01

    BACKGROUND: CD163 is expressed exclusively on cells of the monocyte/macrophage lineage and is widely used as a marker of human macrophages. Further, it has been suggested as a diagnostic marker of monocyte/macrophage activity in inflammatory conditions and as a therapeutic target. However, studies continue to exhibit great discrepancy in the measured percentage of CD163-expressing blood monocytes in healthy individuals. In this study we sought to clarify this inconsistency in reported levels of CD163 surface expression by a detailed analysis of a panel of CD163 antibodies used in previous studies. MATERIALS AND METHODS: The cellular distribution of CD163 on human peripheral blood monocytes in freshly drawn blood and peripheral blood mononuclear cells isolated from buffy-coats was investigated by flow cytometry using CD163 monoclonal antibodies recognizing scavenger receptor cysteine-rich (SRCR) domain 1 (MAC2-158), domain 4 (R-20), domain 7 (GHI/61), and domain 9 (RM3/1). The CD163 monoclonal antibodies werecharacterized in binding and endocytosis experiments in human macrophages and CD163-transfected Flp-In CHO cells. Calcium-dependent ligand binding was assessed using surface plasmon resonance, and the specificity of the CD163 monoclonal antibodies was analyzed by western blotting. RESULTS AND DISCUSSION: Flow cytometric analysis revealed that the estimated proportion of CD163-expressing human peripheral blood monocytes increased when using CD163 monoclonal antibodies recognizing epitopes in the N-terminal part of CD163, remote from the membrane surface. Moreover, the proportion of CD163 positive monocytes observed was highly dependent on free calcium. GHI/61 did not exhibit CD163 binding in the presence of calcium as measured by surface plasmon resonance, which was in agreement with the concordant loss of binding in heparin-stabilized whole blood observed by flow cytometry. In contrast, RM3/1 exhibited weak binding to CD163 in the absence of calcium but high affinity binding to CD163 in the presence of calcium. R-20 and MAC2-158 were unaffected by extracellular calcium levels. The latter SRCR domain 1mAb consistently recognized more than 80% CD163-positive monocytes in human peripheral blood. CONCLUSION: Epitope accessibility and extracellular calcium dependence elucidate discrepancies in reported levels of monocytic CD163 expression. Utilizing monoclonal antibodies to the N-terminal part of CD163 more than 80% monocytes in human peripheral blood could be identified as CD163 positive, indicating that most, and conceivably all, human peripheral blood monocytes do express CD163.

  2. DETERMINACION SIMULTANEA DE SEIS HIDROCARBUROS POLICICLICOS AROMATICOS EN MEDIO MICELAR POR REGRESION DE MINIMOS CUADRADOS PARCIALES (PLS-1 UTILIZANDO ESPECTROS DE FLUORESCENCIA DE ANGULO VARIABLE LINEAL

    Directory of Open Access Journals (Sweden)

    J. AMADOR-HERNANDEZ

    1999-09-01

    Full Text Available En este trabajo, se presenta la determinación espectrofuorimétrica simultánea de los hidrocarburos policíclicos aromáticos de interés medioambiental denominados benzo[ a] pireno, benzo[ e] pireno,benzo[ g,h,i] perileno, coroneno, dibenzo[ a,h] antraceno e indeno[ 1,2,3-c,d] pireno en medio micelar, utilizando el surfactante no iónico éterdel 10 laurilo polioxietileno (POLE. Con el fin de utilizar las señales de mayor sensibilidad para la determinación de cada uno de los compuestos en la mezcla, se registraron los espectros por fluorescencia de ángulo variable lineal. Debido al gran solapamiento espectral observado, la resolución del sistema multicomponente se efectuó aplicando el algoritmo de calibración multivariante conocido como Regresión por Mínimos Cuadrados Parciales tipo 1 (PLS-1. Se aplicaron diferentes criterios para la selección del número de factores óptimo para el modelo de calibración. Los resultados obtenidos tanto en mezclas sintéticas como en muestras de agua de dos orígenes distintos contaminados con cantidades conocidas de los hidrocarburos de interés fueron satisfactoriosThe multivariate calibration method partial least squares regression type 1 (PLS-1 was applied to the simultaneous spectrofluorimetric determination of aromatic polycyclic hydrocarbons of environmental interest, namely benzo[ a] pyrene,benzo[ e] pyrene, benzo[ g,h,i] perylene, coronene, dibenzo[ a,h] antrhracene and indeno[ 1,2,3-c,d] pyrene in micellar medium by using the non ionic surfactantpolyethylene ether (POLE. In order to employ the highest sensitivity signals for the determination of each of the compounds in the mixture, the corresponding linear variable angle fluorescence spectra were recorded. Several data characteristic are taken into account in order to minimize the optimum number of factors required for the construction of calibration model while using various statisticial criteria of selection. The statistical parameters obtained by internal and external validation of the optimum calibration model were in agreement, with satisfactory results. The results obtainedin both synthetic mixtures and in water samples of two different origins spiked with known quantities of hydrocarbons of interest are satisfactory

  3. Spark ignition vehicle contributions to atmospheric fine elemental carbon concentrations in coastal, rural and urban communities using polycyclic aromatic hydrocarbon tracers in the CMB model modified for reactivity

    Scientific Electronic Library Online (English)

    Arantzazu, Eiguren-Fernandez; Antonio H., Miguel.

    Full Text Available Repartimos a parcela do componente de carbono elementar (CE) em PM2,5 atmosférico atribuível à emissões de veículos com ignição por faísca (SI) em amostras coletadas durante dois anos em doze comunidades no Sul da Califórnia, incluindo zonas costeiras, rurais e urbanas usando o Modelo de Balanço de [...] Massa Química (CMB8) modificado para levar em conta a reatividade dos hidrocarbonetos policíclicos aromáticos (HPAs). Foram avaliadas as razões HPA/CE em amostras coletadas no túnel Caldecott para utilização como assinaturas das fontes. A reatividade dos HPAs que ocorre durante o transporte de aerossóis atmosféricos que pode afetar as estimativas de contribuição das fontes (ECF) durante o verão/primavera/outono foi considerada com o uso de constantes de decaimento medidas experimentalmente. Nossos resultados mostram que o benzo[ghi]perylene e o indeno[1,2,3-cd]pireno podem ser utilizados com sucesso como marcadores específicos de CE nas emissões por veículos com SI. A estimativa média da porção de CE atribuído pelo modelo à emissões provenientes de SI nessas comunidades foi de 39, 58 e 62%, respectivamente, durante o verão, primavera/outono, e inverno. Para todas as comunidades costeiras, as atribuições a veículos por SI representam cerca do dobro das estimativas para as áreas rurais e urbanas, antes de dezembro 2003 quando MTBE ainda era usado na California. Abstract in english We apportioned the elemental carbon (EC) component of ambient PM2.5 attributable to emissions from spark ignition (SI) vehicles in samples collected over a three-year period in twelve Southern California communities, including coastal, rural, and urban areas using the chemical mass balance model (CM [...] B8) modified for polycyclic aromatic hydrocarbon (PAH) reactivity. Selected PAH/EC ratios, measured in samples collected in the Caldecott tunnel were evaluated for use as fingerprints. PAH reactivity which occurs during atmospheric transport and affects the source contribution estimates during the summer/fall/spring months was accounted for using experimentally measured decay constants. Results showed that benzo[ghi]perylene and indeno[1,2,3-cd]pyrene can be used successfully as specific tracers of EC contributions from SI vehicles. The average EC portion of PM2.5 attributed by the model to SI emissions at these communities was 39, 58 and 62%, respectively, during the summer, spring/autumn, and winter. For all seasons, coastal community contributions represent about twice those found in the rural and urban inland communities, before December 2003 when MTBE was still in use in California.

  4. Assessment of the Level-3 MODIS daily aerosol optical depth in the context of surface solar radiation and numerical weather modeling

    Directory of Open Access Journals (Sweden)

    J. A. Ruiz-Arias

    2012-09-01

    Full Text Available The Level-3 MODIS aerosol optical depth (AOD product offers interesting features for surface solar radiation and numerical weather modeling applications. Remarkably, the Collection 5.1 dataset extends over more than a decade, and provides daily values of AOD over a global regular grid of 1°×1° spatial resolution. However, most of the validation efforts so far have focused on Level-2 products (10-km, at original resolution and only rarely on Level-3 (at aggregated spatial resolution of 1°×1°. In this contribution, we compare the Level-3 Collection 5.1 MODIS AOD dataset available since 2000 against observed daily AOD values at 550 nm from more than 500 AERONET ground stations around the globe. One aim of this study is to check the advisability of this MODIS dataset for surface shortwave solar radiation calculations using numerical weather models. Overall, the mean error of the dataset is 0.03 (17%, relative to the mean ground-observed AOD, with a root mean square error of 0.14 (73%, relative to the same, albeit these values are found highly dependent on geographical region. For AOD values below about 0.3 the expected error is found very similar to that of the Level-2 product. However, for larger AOD values, higher errors are found. Consequently, we propose new functions for the expected error of the Level-3 AOD, as well as for both its mean error and its standard deviation. Additionally, we investigate the role of pixel count vis-à-vis the reliability of the AOD estimates. Our results show that a higher pixel count does not necessarily turn into a more reliable AOD estimate. Therefore, we recommend to verify this assumption in the dataset at hand if the pixel count is meant to be used. We also explore to what extent the spatial aggregation from Level-2 to Level-3 influences the total uncertainty in the Level-3 AOD. In particular, we found that, roughly, half of the error might be attributable to Level-3 AOD sub-pixel variability. Finally, we use a~radiative transfer model to investigate how the Level-3 AOD uncertainty propagates into the calculated direct normal (DNI and global horizontal (GHI irradiances. Overall, results indicate that, for Level-3 AODs smaller than 0.5, the induced uncertainty in DNI due to the AOD uncertainty alone is below 15% on average, and below 5% for GHI (for a solar zenith angle of 30°. However, the uncertainty in AOD is highly spatially variable, and so is that in irradiance.

  5. Air Temperature estimation from Land Surface temperature and solar Radiation parameters

    Science.gov (United States)

    Lazzarini, Michele; Eissa, Yehia; Marpu, Prashanth; Ghedira, Hosni

    2013-04-01

    Air Temperature (AirT) is a fundamental parameter in a wide range of applications such as climate change studies, weather forecast, energy balance modeling, efficiency of Photovoltaic (PV) solar cells, etc. Air temperature data are generally obtained through regular measurements from meteorological stations. The distribution of these stations is normally sparse, so the spatial pattern of this parameter cannot be accurately estimated by interpolation methods. This work investigated the relationship between Air Temperature measured at meteorological stations and spatially contiguous measurements derived from Remote Sensing techniques, such as Land Surface Temperature (LST) maps, emissivity maps and shortwave radiation maps with the aim of creating a continuous map of AirT. For LST and emissivity, MSG-SEVIRI LST product from Land Surface Analysis Satellite Applications Facility (LSA-SAF) has been used. For shortwave radiation maps, an Artificial Neural Networks ensemble model has been developed and previously tested to create continuous maps from Global Horizontal Irradiance (GHI) point measurements, utilizing six thermal channels of MSG-SEVIRI. The testing sites corresponded to three meteorological stations located in the United Arab Emirates (UAE), where in situ measurements of Air Temperature were available. From the starting parameters, energy fluxes and net radiation have been calculated, in order to have information on the incoming and outgoing long-wave radiation and the incoming short-wave radiation. The preliminary analysis (day and Night measurements, cloud free) showed a strong negative correlation (0.92) between Outgoing long-wave radiation - GHI and LST- AirT, with a RMSE of 1.84 K in the AirT estimation from the initial parameters. Regression coefficients have been determined and tested on all the ground stations. The analysis also demonstrated the predominant impact of the incoming short-wave radiation in the AirT hourly variation, while the incoming long-wave radiation remains almost constant during the testing period. To conclude, the final AirT maps have been used to calculate continuous maps of Net Radiation, showing an important application of the output of this work for surface energy balance retrieval.

  6. Changes in body fluid and energy compartments during prolonged hunger strike / Alterações nos compartimentos hídricos e energéticos do organismo durante a greve de fome

    Scientific Electronic Library Online (English)

    Joel, Faintuch; Francisco Garcia, Soriano; José Paulo, Ladeira; Mariano, Janiszewski; Irineu Tadeu, Velasco; Joaquim J., Gama-Rodrigues.

    2000-04-01

    Full Text Available A privação total e prolongada de alimentos em adultos não-obesos é raramente vista, e poucos estudos documentaram as modificações da composição corpórea neste contexto.Num grupo de oito casos de greve de fome durante 43 dias, procedeu-se à estimativa dos compartimentos hídricos e energéticos, visand [...] o averiguar a influência sobre os mesmos da desnutrição progressiva.Os métodos incluiram índice de massa corporal (IMC), prega cutânea do tríceps (PCT), circunferência muscular do braço, e determinação através da bioimpedância (BIA) da água, massa gorda, massa magra e resistência corpórea total..A calorimetria indireta foi realizada em uma ocasião apenas.A idade do grupo era de 43,3± 6,2 anos (sete homens, uma mulher), somente água e ocasionais eletrólitos e vitaminas foram ingeridos no jejum, e a perda de peso média foi de 17,9%. Por volta do 43º dia da greve iniciou-se a reposição venosa rápida de fluidos, vitaminas e eletrólitos,antes de se prosseguir com a realimentação.A gordura corporal diminuiu em aproximadamente 60% (BIA e PCT), ao passo que o IMC caiu apenas 18%.A estimativa da gordura total inicial por BIA foi de 52,2± 5,4% do peso corporal, e mesmo no 43º dia do evento o valor calculado era de 19,7± 3,8% do peso.Os valores correspondentes deduzidos da PCT mostraram-se substancialmente inferiores, e mais compatíveis com os demais índices antropométricos. A água corporal revelou-se inicialmente contraída, com resistência elevada,sendo que estes achados se reverteram rapidamente por ocasião da hidratação venosa rápida.Quando do término da greve de fome o IMC (21,5± 2,6 kg/m²) e outras variáveis antropométricas revelavam-se numericamente aceitáveis, sugerindo eficiente conservação de musculatura e energia na fase de dieta zero.Conclui-se que: 1) Todos os compartimentos orgânicos se contrairam na greve de fome, porém o tecido adiposo foi de longe o mais afetado; 2) A água corporal mostrou-se reduzida com elevada resistência total, mas estes achados inverteram-se prontamente mediante hidratação parenteral; 3) O encontro de gordura total excessiva e de aumento da massa magra com o avançar do jejum sugerem que as leituras de BIA são inapropriadas para esta população e fornecem resultados incoerentes; 4) Com base nos parâmetros expostos os doentes não estavam morfologicamente desnutridos ao cabo de 43 dias, todavia não foram aqui avaliados outros transtornos de considerável importância prognóstica. Abstract in english Prolonged total food deprivation in non-obese adults is rare, and few studies have documented body composition changes in this setting. In a group of eight hunger strikers who refused alimentation for 43 days, water and energy compartments were estimated, aiming to assess the impact of progressive s [...] tarvation. Measurements included body mass index (BMI), triceps skinfold (TSF), arm muscle circumference (AMC), and bioimpedance (BIA) determinations of water, fat, lean body mass (LBM), and total resistance. Indirect calorimetry was also performed in one occasion. The age of the group was 43.3±6.2 years (seven males, one female). Only water, intermittent vitamins and electrolytes were ingested, and average weight loss reached 17.9%. On the last two days of the fast (43rd-44th day) rapid intravenous fluid, electrolyte, and vitamin replenishment were provided before proceeding with realimentation. Body fat decreased approximately 60% (BIA and TSF), whereas BMI reduced only 18%. Initial fat was estimated by BIA as 52.2±5.4% of body weight, and even on the 43rd day it was still measured as 19.7±3.8% of weight. TSF findings were much lower and commensurate with other anthropometric results. Water was comparatively low with high total resistance, and these findings rapidly reversed upon the intravenous rapid hydration. At the end of the starvation period, BMI (21.5±2.6 kg/m²) and most anthropometric determinations were still acceptable, suggesting efficient energy and muscle conservation. Conclusions: 1) All

  7. Determination and genotoxicity of high molecular mass polycyclic aromatic hydrocarbons isolated form coal-tar-contaminated sediment

    International Nuclear Information System (INIS)

    A bioassay-directed chemical fractionation methodology was used to identify the principal mutagenic compounds in an organic solvent extract of coal-tar-contaminated sediment from Sydney Harbour, Nova Scotia. Biological assays with Salmonella typhimurium bacteria with the addition of oxidative metabolism indicated that the majority of the mutagenic activity observed in the sediment extract was associated with the higher molecular mass polycyclic aromatic hydrocarbons (PAHs). A normal phase high-performance liquid chromatography (HPLC) technique was developed to separate the PAH-rich solvent extracts into fractions containing isomeric PAHs of a single benzologue class. These fractions were analyzed by probe mass spectrometry and gas chromatography-mass spectrometry (GC-MS), and subjected to biological assays using strain YG1025 with the addition of oxidative metabolism (4% and 10% S9). Fractions containing compounds of molecular weights 252, 276, 278, and 302 amu exhibited mutagenic activities of 930±125, 510±100, 250±40, and 370±140 rev/mg sediment, respectively. The molecular weight 252 and 276 amu fractions were further analyzed using reversed-phase HPLC and CC-MS to identify the individual PAHs responsible for the observed biological activity. High molecular mass PAHs including benzo(a)pyrene, benzo(ghi)perylene, idenol(1,2,3-cd)pyrene, and compounds of molecular weight 302 amu were found to be responsible for the majority of the mutagenic activity displayed by f the mutagenic activity displayed by this complex environmental mixture

  8. Determination and genotoxicity of high molecular mass polycyclic aromatic hydrocarbons isolated from coal-tar-contaminated sediment

    International Nuclear Information System (INIS)

    A bioassay-directed chemical fractionation methodology was used to identify the principal mutagenic compounds in an organic solvent extract of coal-tar-contaminated sediment from Sydney Harbor, Nova Scotia. Biological assays with Salmonella typhimurium bacteria with the addition of oxidative metabolism indicated that the majority of the mutagenic activity observed in the sediment extract was associated with the higher molecular mass polycyclic aromatic hydrocarbons (PAHs). A normal phase high-performance liquid chromatography (HPLC) technique was developed to separate the PAH-rich solvent extracts into fractions containing isomeric PAHs of a single benzologue class. These fractions were analyzed by probe mass spectrometry and gas chromatography-mass spectrometry (GC-MS), and subjected to biological assays using strain YG1025 with the addition of oxidative metabolism (4% and 10% S9). Fractions containing compounds of molecular weights 252, 276, 278, and 302 amu exhibited mutagenic activities of 930 ± 125, 510 ± 100, 250 ± 40, and 370 ± 140 rev/mg sediment, respectively. The molecular weight 252 and 276 amu fractions were further analyzed using reversed-phase HPLC and GC-MS to identify the individual PAHs responsible for the observed biological activity. High molecular mass PAHs including benzo[a]pyrene, benzo[ghi]perylene, indeno[1,2,3-cd]pyrene, and compounds of molecular weight 302 amu were found to be responsible for the majority of the mutagenic activity displaority of the mutagenic activity displayed by this complex environmental mixture

  9. Inactivation of MuxABC-OpmB transporter system in Pseudomonas aeruginosa leads to increased ampicillin and carbenicillin resistance and decreased virulence.

    Science.gov (United States)

    Yang, Liang; Chen, Lin; Shen, Lixin; Surette, Michael; Duan, Kangmin

    2011-02-01

    Resistance-Nodulation-Cell Division (RND) pumps play important roles in bacterial resistance to antibiotics. Pseudomonas aeruginosa is an important human pathogen which exhibits high level resistance to antibiotics. There are total of 12 RND pumps present in the P. aeruginosa PAOl genome. The recently characterized MuxABC-OpmB system has been shown to play a role in resistance to novobiocin, aztreonam, macrolides, and tetracycline in a multiple knockout mutation. In this study, we examined the expression levels of all the 12 RND pump gene clusters and tested the involvement of MuxABC-OpmB in pathogenicity. The results indicated that in addition to the four known constitutively expressed RND pumps, mexAB-oprM, mexGHI-opmD, mexVW, and mexXY, relatively high levels of expression were observed with mexJK and muxABC-opmB in the conditions tested. Inactivation of muxA in the muxABC-opmB operon resulted in elevated resistance to ampicillin and carbenicillin. The mutant also showed attenuated virulence in both Brassica rapa pekinensis and Drosophila melanogaster infection models. The decreased virulence at least in part was due to decreased twitching motility in the mutant. These results indicate that the RND pump MuxABC-OpmB is associated with ampicillin and carbenicillin susceptibility and also involved in pathogenesis in P. aeruginosa. PMID:21369987

  10. Transfer of hydrophobic contaminants in urban runoff particles to benthic organisms estimated by an in vitro bioaccessibility test

    DEFF Research Database (Denmark)

    Nakajima, F.; Saito, K.

    2006-01-01

    An in vitro bioaccessibility test was applied for assessing the transfer of polycyclic aromatic hydrocarbons (PAHs) present in road dust, into benthic organisms living in a receiving water body. The road dust is supposed to be urban runoff particles under wet weather conditions. Sodium dodecyl sulfate (SDS) solution was used as a hypothetical gut fluid. Pyrene, fluoranthene and phenanthrene were the main PAH species in the SIDS extractable fraction of road dust, as well as the whole extract. Benzo(ghi)perylene showed relatively low concentrations in the SIDS extract in spite of a high concentration in the original dust. The PAH composition in benthic organisms (polychaetes) did not correspond with that of the surrounding sediment and the PAHs detected were also detected in high concentrations in the SDS extract of road dust. When testing the toxicity of the extracted contaminants by a standardised algal toxicity test, SIDS extracts of a detention pond sediment showed higher toxicity than the pore water of thecorresponding sediment. Sediment suspension showed a comparative toxicity with 0.1% SIDS extract. From the results, the in vitro bioaccessibility test seems more suitable to evaluate the exposed contaminants than the traditional organic solvent extraction method and the SDS extracted fraction is applicable to toxicity tests reflecting the digestive process.

  11. PROPUESTA METODOLÓGICA PARA LA VALORACIÓN DEL PATRIMONIO GEOLÓGICO, COMO BASE PARA SU GESTIÓN EN EL DEPARTAMENTO DE ANTIOQUIA - COLOMBIA / METHODOLOGICAL PROPOSAL FOR CONSIDERING GEOLOGICAL HERITAGE AS A BASIS FOR ITS MANAGEMENT IN THE DEPARTMENT OF ANTIOQUIA - COLOMBIA

    Scientific Electronic Library Online (English)

    ALBEIRO DE JESÚS, RENDÓN RIVERA; ANGELA MARÍA, HENAO ARROYAVE; JUAN GUILLERMO, OSORIO CACHAYA.

    2013-06-01

    Full Text Available Esta comunicación presenta una propuesta metodológica para la valoración del patrimonio geológico en el Departamento de Antioquia, región localizada en el Noroccidente de Colombia, caracterizada por una gran geodiversidad. Esta propuesta metodológica propone una expresión empírica denominada Índice [...] de Patrimonio Geológico (IPG), conformada por una suma aritmética de los siguientes parámetros con pesos diferentes: Valor científico (0.4), Valor Didáctico (0.2), Diversidad (0.2), Valor Estético (0.1) y Edad Geológica (0.1). Se proponen además, tres rangos de IPG para la clasificación del patrimonio geológico: IPG >4.0 (Patrimonio geológico con uso restringido), 4≥ IPG ≥2 (Patrimonio geológico para usos múltiples) e IPG Abstract in english This paper presents a methodology for the assessment of geological heritage in the Department of Antioquia, located in the northwest region of Colombia, characterized by great geodiversity. This methodological proposal proposes an empirical expression called Geological Heritage Index (GHI), formed b [...] y the arithmetic sum of the following parameters with different weights: Scientific value (0.4), educational value (0.2), Diversity (0.2), aesthetic value (0.1) and Age Geology (0.1). Are proposed three IPG ranges for classification of geological heritage: IPG> 4.0 (restricted use Geological heritage), 4 ≥ IPG ≥ 2 (multipurpose Geological heritage) and IPG

  12. Exploration of coordination polymer as sorbent for flow injection solid-phase extraction on-line coupled with high-performance liquid chromatography for determination of polycyclic aromatic hydrocarbons in environmental materials.

    Science.gov (United States)

    Zhou, You-Ya; Yan, Xiu-Ping; Kim, Ki-Nam; Wang, Shan-Wei; Liu, Ming-Guang

    2006-05-26

    The copper(II) isonicotinate (Cu(4-C5H4N-COO)2(H2O)4) coordination polymer was prepared, characterized and explored as sorbent for flow injection solid-phase extraction on-line coupled with high-performance liquid chromatography (HPLC) for determination of trace polycyclic aromatic hydrocarbons (PAHs) in environmental matrices. Naphthalene, phenanthrene, anthracene, fluoranthene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)pyrene and benzo(ghi)perylene with various shape, size and hydrophobicity were used as model analytes. The porosity of the coordination polymer allows these guest PAHs molecules to diffuse into the buck structure, and the shape and size of the pores lead to shape- and size-selectivity over the guests. The precolumn packed with the coordination polymer was shown to be promising for solid-phase extraction of PAHs in environmental samples with subsequent HPLC separation and UV detection. With extraction of 50 ml of sample solution, the enhancement factors for the PAHs studied ranged from 200 to 2337, depending on the shape, size and hydrophobic property of the PAHs. The detection limits (S/N = 3) of 2-14 ng l(-1) and the sample throughput of 3 samples h(-1) were obtained. The developed method was applied to the determination of trace PAHs in a certified reference material (coal fly ash) and local water samples. PMID:16616177

  13. A comparative study of the stochastic models and harmonically coupled stochastic models in the analysis and forecasting of solar radiation data

    Scientific Electronic Library Online (English)

    Edmore, Ranganai; Mphiliseni B, Nzuza.

    2015-02-01

    Full Text Available Extra-terrestrially, there is no stochasticity in the solar irradiance, hence deterministic models are often used to model this data. At ground level, the Box-Jenkins Seasonal/Non-seasonal Autoregressive Integrated Moving Average (S/ARIMA) short memory stochastic models have been used to model such [...] data with some degree of success. This success is attributable to its ability to capture the stochastic component of the irradiance series due to the effects of the ever-changing atmospheric conditions. However, irradiance data recorded at the earth's surface is rarely entirely stochastic but a mixture of both deterministic and stochastic components. One plausible modelling procedure is to couple sinusoidal predictors at determined harmonic (Fourier) frequencies to capture the inherent periodicities (seasonalities) due to the diurnal cycle, with SARI-MA models capturing the stochastic components. We construct such models which we term, harmonically coupled SARIMA (HCSARIMA) models and use them to empirically model the global horizontal irradiance (GHI) recorded at the earth's surface. Comparison of the two classes of models shows that HCSARIMA models generally out-compete SARI-MA models in the forecasting arena.

  14. SAURAN: A new resource for solar radiometric data in Southern Africa

    Scientific Electronic Library Online (English)

    Michael J, Brooks; Sven, du Clou; Wikus L, van Niekerk; Paul, Gauché; Corli, Leonard; Michael J, Mouzouris; Riaan, Meyer; Nic, van der Westhuizen; Ernest E, van Dyk; Frederik J, Vorster.

    2015-02-01

    Full Text Available A new resource for sun strength data in Southern Africa has been established with the commissioning of a regional network of solar monitoring stations. The Southern African Universities Radiometric Network (SAURAN) is an initiative of Stellenbosch University and the University of KwaZulu-Natal (UKZN [...] ), and consists of an initial set of ten ground stations equipped with secondary standard thermopile radiometers. SAURAN's aim is to provide a long-term record of sun strength in a region that shows excellent potential for the deployment of solar energy technologies. Instruments measuring direct normal irradiance (DNI), diffuse horizontal irradiance (DHI) and global horizontal irradiance (GHI) feed time-averaged data over 1-minute, hourly and daily intervals to a central archive from where they are accessible to the public via a website interface. Meteorological data is also provided by most of the stations. This paper gives a brief background to the SAURAN project and describes the network's operation, coverage and future expansion. Examples of solar energy irradiance plots are also provided to illustrate the information available from the SAURAN database.

  15. Profile of mecasermin for the long-term treatment of growth failure in children and adolescents with severe primary IGF-1 deficiency

    Directory of Open Access Journals (Sweden)

    Danilo Fintini

    2009-07-01

    Full Text Available Danilo Fintini, Claudia Brufani, Marco CappaEndocrinology Unit, “Bambino Gesù” Children’s Hospital-IRCCS, Rome, ItalyAbstract: Growth hormone insensitivity syndrome (GHI or insulin-like growth factor-1 (IGF-1 deficiency (IGFD is characterized by deficit of IGF-1 production due to alteration of response of growth hormone (GH receptor to GH. This syndrome is due to mutation of GH receptor or IGF-1 gene and patients affected showed no response to GH therapy. The only treatment is recombinant IGF-1 (mecasermin, which has been available since 1986, but approved in the United States by the US Food and Drug Administration only in 2005 and in Europe by the European Medicines Agency in 2007. To date, few studies are available on long-term treatment with mecasermin in IGFD patients and some of them have a very small number of subjects. In this review we discuss briefly clinical features of severe primary IGFD, laboratory findings, and indications for treatment. Results of long-term therapy with rhIGF1 (mecasermin in patients affected by severe primary IGFD and possible side effects are explained.Keywords: mecasermin, therapy, Laron syndrome, IGF-1

  16. Improvements in Satellite-Derived Short-Term Insolation Forecasting: Statistical Comparisons, Challenges for Advection-Based Forecasts, and New Techniques

    Science.gov (United States)

    Rogers, M. A.; Miller, S. D.; Haynes, J. M.; Heidinger, A. K.; Haupt, S. E.; Sengupta, M.

    2014-12-01

    Using satellite observations from GOES-E and GOES-W platforms in concert with GFS-derived cloud-level winds and a standalone radiative transfer model, an advection-derived forecast for surface GHI over the continental United States is described. In particular, comparisons from the satellite-derived forecast are shown against several SURFRAD sites, with particular attention to developing meaningful error metrics to better demonstrate forecast skill and identify sources of error. Challenges in advection-based forecast techniques, such as forecasting near regions of non-wind-driven cloud systems such as coastal marine stratocumulus, are described, as are methods integrated into the forecast algorithm to identify and address these challenges. Improvements in the particular algorithm with respect to comparison against surface observations, integration of the forecast technique into blended forecast products such as those described by the 'Public-Private-Academic Partnership to Advance Solar Power Forecasting' project spearheaded by the National Center for Atmospheric Research, and other observations germane to satellite-derived solar forecasting are covered using nearly two years of operational forecasts as background.

  17. Advances in Solar Power Forecasting

    Science.gov (United States)

    Haupt, S. E.; Kosovic, B.; Drobot, S.

    2014-12-01

    The National Center for Atmospheric Research and partners are building a blended SunCast Solar Power Forecasting system. This system includes several short-range nowcasting models and improves upon longer range numerical weather prediction (NWP) models as part of the "Public-Private-Academic Partnership to Advance Solar Power Forecasting." The nowcasting models being built include statistical learning models that include cloud regime prediction, multiple sky imager-based advection models, satellite image-based advection models, and rapid update NWP models with cloud assimilation. The team has also integrated new modules into the Weather Research and Forecasting Model (WRF) to better predict clouds, aerosols, and irradiance. The modules include a new shallow convection scheme; upgraded physics parameterizations of clouds; new radiative transfer modules that specify GHI, DNI, and DIF prediction; better satellite assimilation methods; and new aerosol estimation methods. These new physical models are incorporated into WRF-Solar, which is then integrated with publically available NWP models via the Dynamic Integrated Forecast (DICast) system as well as the Nowcast Blender to provide seamless forecasts at partner utility and balancing authority commercial solar farms. The improvements will be described and results to date discussed.

  18. Polypyrrole Composite Film for Highly Sensitive and Selective Electrochemical Determination Sensors

    International Nuclear Information System (INIS)

    In this paper, polypyrrole (PPy) and benz[a]anthracene-7,12-dione (BaD) were electro-polymerized onto a pyrolytic graphite electrode (PGE), constructing a novel BaD/PPy/PGE platform for electrochemical sensoring. The morphology and electrochemical properties of the fabricated BaD/PPy/PGE were characterized by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. Furthermore, the electrochemical behavior of benzo[k]fluoranthene (BkF) at the BaD/PPy/PGE was investigated. Due to the specific interactions between BkF and BaD, a wide linear range of BkF detection from 1.0 × 10?12 to 1.0 × 10?9 M with good linearity (R2 = 0.9962) and a low detection limit (1.0 × 10?13 M, S/N = 3) were demonstrated. Importantly, other similar aromatics which had one ring or more than two rings, such as benzo[a]anthracene, benzo[a]pyrene, pyrene, benzo[ghi]peryle, anthracene, phenanthrene, naphthalene and parachlorophenol, showed insignificant interference on BkF detection. Consequently, this novel BaD/PPy/PGE with excellent stability and selectivity holds promise as an effective BkF electrochemical sensor in aqueous solution. As an example for its practical application, the newly developed sensor was applied to quantitative determination of BkF in waste water samples obtained from a coking plant with satisfactory sensitivity, selectivity, and reversibility

  19. Application of radiocarbon analysis and receptor modeling to the source apportionment of PAHs (polycyclic aromatic hydrocarbons) in the atmosphere

    International Nuclear Information System (INIS)

    The radiocarbon tracer technique was used to demonstrate that polycyclic aromatic hydrocarbons (PAHs) can be used for quantitative receptor modeling of air pollution. Fine-particle samples were collected during December, 1985, in Albuquerque, NM. Motor vehicles (fossil) and residential wood combustion (RWC, modern) were the major PAH-sources. For each sample, the PAH-fraction was solvent-extracted, isolated by liquid chromatography, and analyzed by GC-FID and GC-MS. The PAH-fractions from sixteen samples were analyzed for 14C by Accelerator Mass Spectrometry. Radiocarbon data were used to calculate the relative RWC contribution (fRWC) for samples analyzed for 14C. Normalized concentrations of a prospective motor vehicle tracer, benzo(ghi)perylene (BGP) had a strong, negative correlation with fRWC. Normalized BGP concentrations were used to apportion sources for samples not analyzed for 14C. Multiple Linear Regression (MLR) vs. ADCS and BGP was used to estimate source profiles for use in Target Factor Analysis (TFA). Profiles predicted by TFA were used in Chemical Mass Balances (CMBs). For non-volatile, stable PAHs, agreement between observed and predicted concentrations was excellent. The worst fits were observed for the most volatile PAHs and for coronene. The total RWC contributions predicted by CMBs correlated well with the radiocarbon data

  20. Satellite-Based Solar Resource Data Sets for India 2002-2012

    Energy Technology Data Exchange (ETDEWEB)

    Sengupta, M.; Perez, R.; Gueymard, C.; Anderberg, M.; Gotseff, P.

    2014-02-01

    A new 10-km hourly solar resource product was created for India. This product was created using satellite radiances from the Meteosat series of satellites. The product contains global horizontal irradiances (GHI) and direct normal irradiances (DNI) for the period from 2002 to 2011. An additional solar resource data set covering the period from January 2012 to June 2012 was created solely for validation because this period overlaps ground measurements that were made available from the Indian Ministry of New and Renewable Energy's (MNRE's) National Institute for Solar Energy for five stations that are part of MNRE's solar resource network. These measurements were quality checked using the SERI QC software and used to validate the satellite product. A comparison of the satellite product to the ground measurements for the five stations shows good agreement. This report also presents a comparison of the new version of solar resource data to the previous version, which covered the period from 2002 to 2008.

  1. FOOD SAFETY AND STANDARDS LAWAND POLICY IN INDIA

    Directory of Open Access Journals (Sweden)

    ASHISH SHRIVASTAVA

    2012-11-01

    Full Text Available Acountry develops in the real sense if it's people are healthy and prosperous i.e. if they can have healthy and notorious food which is as per standards of food safety . Only then a country can grow well . United nations Development Programme (UNDP also prepare Human Development Index(HDI on the basis of public health, education and income. It shows the importance of health of the people for the growth of nation and as symbol of human development .India despite having a huge population [121.02 cr.(2011] and being very big economy as well, legging in the world not in GDPbut in the health of the people. The economy in financial terms is growing in quantum but is it sufficient ? This question leads us to confront with some harsh realities about health in India. As we are concerned here about food safety and public health , we should have quick review of data recently reviled by UNDP's(HDI, Global Hunger Index(GHI and Food Safety and Standards Authority of India(FSSAI about adulteration to get an idea about the situation of India .

  2. Automobile tires--a potential source of highly carcinogenic dibenzopyrenes to the environment.

    Science.gov (United States)

    Sadiktsis, Ioannis; Bergvall, Christoffer; Johansson, Christer; Westerholm, Roger

    2012-03-20

    Eight tires were analyzed for 15 high molecular weight (HMW) polycyclic aromatic hydrocarbons (PAH), using pressurized fluid extraction. The variability of the PAH concentrations determined between different tires was large; a factor of 22.6 between the lowest and the highest. The relative abundance of the analytes was quite similar regardless of tire. Almost all (92.3%) of the total extractable PAH content was attributed to five PAHs: benzo[ghi]perylene, coronene, indeno[1,2,3-cd]pyrene, benzo[e]pyrene, and benzo[a]pyrene. The difference in the measured PAH content between summer and winter tires varied substantially across manufacturers, making estimates of total vehicle fleet emissions very uncertain. However, when comparing different types of tires from the same manufacturer they had significantly (p = 0.05) different PAH content. Previously, there have been no data available for carcinogenic dibenzopyrene isomers in automobile tires. In this study, the four dibenzopyrene isomers dibenzo[a,l]pyrene, dibenzo[a,e]pyrene, dibenzo[a,i]pyrene, and dibenzo[a,h]pyrene constituted <2% of the sum of the 15 analyzed HMW PAHs. These findings show that automobile tires may be a potential previously unknown source of carcinogenic dibenzopyrenes to the environment. PMID:22352997

  3. Contributions of the ?W, ?M, and ?X Regulons to the Lantibiotic Resistome of Bacillus subtilis

    Science.gov (United States)

    Kingston, Anthony W.; Liao, Xiaojie; Helmann, John D.

    2014-01-01

    Summary In Bacillus subtilis, the extracytoplasmic function (ECF) ? factors ?M, ?W, and ?X all contribute to resistance against lantibiotics. Nisin, a model lantibiotic, has a dual mode of action: it inhibits cell wall synthesis by binding lipid II, and this complex also forms pores in the cytoplasmic membrane. These activities can be separated in a nisin hinge-region variant (N20P M21P) that binds lipid II, but no longer permeabilizes membranes. The major contribution of ?M to nisin resistance is expression of ltaSa, encoding a stress-activated lipoteichoic acid synthase, and ?X functions primarily by activation of the dlt operon controlling D-alanylation of teichoic acids. Together, ?M and ?X regulate cell envelope structure to decrease access of nisin to its lipid II target. In contrast, ?W is principally involved in protection against membrane permeabilization as it provides little protection against the nisin hinge region variant. ?W contributes to nisin resistance by regulation of a signal peptide peptidase (SppA), phage shock proteins (PspA and YvlC, a PspC homolog), and tellurite resistance related proteins (YceGHI). These defensive mechanisms are also effective against other lantibiotics such as mersacidin, gallidermin, and subtilin and comprise an important subset of the intrinsic antibiotic resistome of B. subtilis. PMID:23980836

  4. Contributions of the ?(W) , ?(M) and ?(X) regulons to the lantibiotic resistome of Bacillus subtilis.

    Science.gov (United States)

    Kingston, Anthony W; Liao, Xiaojie; Helmann, John D

    2013-11-01

    In Bacillus subtilis, the extracytoplasmic function (ECF) ? factors ?(M) , ?(W) and ?(X) all contribute to resistance against lantibiotics. Nisin, a model lantibiotic, has a dual mode of action: it inhibits cell wall synthesis by binding lipid II, and this complex also forms pores in the cytoplasmic membrane. These activities can be separated in a nisin hinge-region variant (N20P M21P) that binds lipid II, but no longer permeabilizes membranes. The major contribution of ?(M) to nisin resistance is expression of ltaSa, encoding a stress-activated lipoteichoic acid synthase, and ?(X) functions primarily by activation of the dlt operon controlling d-alanylation of teichoic acids. Together, ?(M) and ?(X) regulate cell envelope structure to decrease access of nisin to its lipid II target. In contrast, ?(W) is principally involved in protection against membrane permeabilization as it provides little protection against the nisin hinge region variant. ?(W) contributes to nisin resistance by regulation of a signal peptide peptidase (SppA), phage shock proteins (PspA and YvlC, a PspC homologue) and tellurite resistance related proteins (YceGHI). These defensive mechanisms are also effective against other lantibiotics such as mersacidin, gallidermin and subtilin and comprise an important subset of the intrinsic antibiotic resistome of B.?subtilis. PMID:23980836

  5. PAH Clusters as Sources of Interstellar Infrared Emission

    Science.gov (United States)

    Roser, J. E.; Ricca, A.

    2015-03-01

    Polycyclic aromatic hydrocarbons (or PAHs) have been the subject of astrochemical research for several decades as principal sources of the interstellar aromatic infrared emission bands. PAH clusters could possibly contribute to these emission bands, but a lack of data on their infrared properties has made this hypothesis difficult to evaluate. Here we investigate homogeneous neutral PAH clusters by measuring the mid-infrared absorption spectra of the five nonlinear PAH molecules phenanthrene, chrysene, pyrene, perylene, and benzo[ghi]perylene within solid argon ice at a fixed temperature of 5 K. We attribute observed spectral shifts in their principal absorption bands as a function of argon/PAH ratio to clustering of the PAH molecules within the argon matrix. These shifts are related to the cluster structures forming in the matrix and the topology of the monomer PAH molecule. We predict that interstellar PAH molecules that are relatively large (no fewer than 50 carbon atoms per molecule) and compact will have clusters that contribute to the asymmetrically red-shaded profile of the interstellar 11.2 ?m emission band.

  6. Polycyclic aromatic hydrocarbons in post-fire soils of drained peatlands in western Meshchera (Moscow region, Russia)

    Science.gov (United States)

    Tsibart, A.; Gennadiev, A.; Koshovskii, T.; Watts, A.

    2014-12-01

    Polycyclic aromatic hydrocarbons (PAHs) are priority pollutants that arrive in the environment from numerous anthropogenic and natural sources, but the data on their natural sources including wildfires remain insufficient. The level of contamination and the composition of PAHs in soils of the areas affected by wildfires were studied in this work. The study was conducted in the Moscow region (Russia) in areas occupied by drained peatland and strongly damaged by fires in 2002, 2010 and 2012. The features of PAH accumulation and the profile distributions in histosols and histic podzols after the fires of different times were analyzed. It was shown that new soil horizons formed after the fires - Cpir, Hpir and incipient O horizons - and that these horizons differ in PAH accumulation rate. Maximal total concentrations of 14 PAHs were detected in charred peat horizons Hpir (up to 330 ng g-1) and in post-fire incipient O horizons (up to 180 ng g-1), but the high-molecular-weight PAHs (benz(ghi)perylene, benz(a)pyrene, benz(k)fluoranthene) were revealed only in charry peat horizons. The trends of higher PAH concentrations were found in cases when smoldering combustion resulted in rather thick residual peat horizons. In cases of almost complete pyrogenic destruction of He horizons, total PAH concentrations were no more than 50 ng g-1. Also, PAH accumulation in upper horizons of soils near the sites of the latest fires was observed.

  7. Sediment-porewater partition of polycyclic aromatic hydrocarbons (PAHs) from Lanzhou Reach of Yellow River, China

    International Nuclear Information System (INIS)

    Pollution of polycyclic aromatic hydrocarbons (PAHs) in the aquatic environment has drawn much attention around the world. The occurrence of 16 priority PAHs in the sediments and corresponding porewaters in Lanzhou Reach of Yellow River, China, and their partitioning behavior between the two phases were investigated. The results demonstrated that the total PAH levels in the sediments were positively correlated with the sediment clay contents (R2 = 0.756). Concentrations of total PAHs in porewaters ranged from 48.2 to 206 ?g/L, and indeno[1,2,3-cd]pyrene (InP) was the most abundant compound measured in the porewater samples with a mean value of 42.9 ?g/L. The compositions of PAHs in porewaters were dominated by their compositions in the sediment samples. The in situ organic carbon normalized partition coefficients (logKoc') of the PAHs between sediments and porewaters were significantly correlated with their octanol-water partition coefficients (log Kow) when log Kow values were less than 5.5 (naphthalene (Nap) excluded). logKoc' values of 14 PAHs were lower than those predicted by the Karickhoff relationship. This discrepancy was largest for InP, dibenzo[a,h]anthracene (DBA), and benzo[ghi]perylene (BgP). The results in present study showed the tendency of PAHs release from sediment to porewater, indicating that PAHs sequestered in the sediments may be a pollution source to aquatic ecosystee a pollution source to aquatic ecosystem.

  8. Estado de hidratação de atletas em corrida de rua de 15 km sob elevado estresse térmico / Hydration status in athletes on 15 km street race under elevated heat stress / Estado de hidratación de atletas en carrera de calle de 15 km bajo elevado estrés térmico

    Scientific Electronic Library Online (English)

    Ednei Costa, Maia; Herikson Araújo, Costa; Jurema Gonçalves Lopes de, Castro Filha; Mario Norberto Sevilio de, Oliveira Junior.

    2015-06-01

    Full Text Available INTRODUÇÃO: Um adequado estado de hidratação é de suma importância para os participantes de corridas de rua, tanto para um melhor desempenho esportivo, quanto na prevenção dos distúrbios causados pelo calor. OBJETIVO: O estudo visa avaliar o estado de hidratação de indivíduos do sexo masculino em c [...] orrida de rua de 15 km. MÉTODOS: A amostra foi composta por 15 indivíduos do sexo masculino (37,67±7,22 anos) praticantes habituais de corrida de rua. O estado de hidratação foi avaliado antes e após a corrida através dos seguintes parâmetros: peso corporal, coloração e gravidade específica da urina (GEU), análise da impedância bioelétrica (BIA), níveis de hemoglobina (Hb) e hematócrito (Ht). Na análise dos dados, foi utilizado o teste t de Student pareado ou o teste de Wilcoxon, aceitando-se como estatisticamente significante p Abstract in spanish INTRODUCCIÓN: Un adecuado estado de hidratación es de suma importancia para los participantes de las carreras de calle, tanto para un mejor desempeño deportivo, como en la prevención de los disturbios causados por el calor. OBJETIVO: El estudio pretende evaluar el estado de hidratación de individuo [...] s del sexo masculino en carrera de calle de 15 km. MÉTODOS: La muestra fue compuesta por 15 individuos masculinos (37,67 ± 7,22 años) practicantes habituales de carreras de calle. El estado de hidratación fue evaluado antes y después de la carrera a través de los siguientes parámetros: peso corporal, coloración y gravedad específica de la orina (GEO), análisis de la impedancia bioeléctrica (BIA), niveles de hemoglobina (Hb) y hematocrito (Ht). En el análisis de los datos, fue utilizado el test t de Student emparejado o el test de Wilcoxon, aceptándose como estadísticamente significativo p Abstract in english INTRODUCTION: An adequate hydration status is of utmost importance to participants of street running, both for better sports performance and to preventi disorders caused by heat. OBJECTIVE: The study aimed to evaluate the hydration status of males on a 15 km street race. METHODS: The sample consist [...] ed of 15 males (37.67 ± 7.22 years old) habitual street runners. The hydration status was evaluated before and after the race by the following parameters: body weight, color and urine specific gravity (USG), bioelectrical impedance analysis (BIA), hemoglobin (Hb) and hematocrit (Ht). In data analysis, the paired Student t-test or the Wilcoxon test were used, setting as statistically significant p

  9. Retratos da avó na literatura infantil contemporânea de Ana Maria Machado e Ruth Rocha / Portraits de la grand-mère dans la littérature pour enfants de Ana Maria Machado et Ruth Rocha / Grand-mother´s portraits in contemporary Child Literature of Ana Maria Machado and Ruth Rocha / Retratos de la abuela en la literatura infantil contemporánea en Ana Maria Machado y Ruth Rocha

    Scientific Electronic Library Online (English)

    Tâmara, Azevedo; Elaine Pedreira, Rabinovich.

    2012-03-01

    Full Text Available A literatura, além de entretenimento, é um meio de transmitir mensagens, de reflexão e discussão das questões humanas, portanto, um importante objeto de investigação psicossocial. Visando apreender a personagem avó, analisaram-se duas histórias para crianças de duas consagradas autoras contemporânea [...] s brasileiras, Bisa Bia Bisa Bel, de Ana Maria Machado, e Atrás da Porta, de Ruth Rocha. A metodologia qualitativa de análise de conteúdo possibilitou aventar as seguintes categorias: descrição dos personagens e de suas relações; análise dos símbolos à luz da Psicologia Analítica; contexto sócio-histórico; visão sobre educação; conceito de infância; e literatura como mensagem. As avós aparecem como representantes de geração(s) anterior(es), transmissoras da cultura e da tradição social, fontes de heranças simbólicas (cultural, familiar, intelectual), contribuindo para o desenvolvimento intelectual de seus netos e para a formação de sua identidade. Abstract in spanish La literatura, además de entretenimiento, es un medio de presentar mensajes, reflección y discusiones de cuestiones humanas, donde es un importante objeto de investigación psicosocial. Objetivando comprender el personaje de la abuela, fueran analizados dos libros para niños de dos consagradas autora [...] s contemporáneas brasileñas, Bisa Bia Bisa Bel, de Ana Maria Machado, y Atrás da Porta, de Ruth Rocha. La metodología cualitativa de análisis de contenido permitió las siguientes categorías: descripción de los personajes y de sus relaciones; análisis de los símbolos a la luz de la Psicología Analítica; contexto sociohistórico; visión sobre la educación; concepto de niñez; y literatura como mensaje. Las abuelas surgen como representantes de generación(es) anterior(es), transmisoras de la cultura y de la tradición social, fuentes de herencias simbólicas (cultural, familiar, intelectual), contribuyendo para el desarrollo intelectual de sus nietos y para la formación de su identidad. Abstract in english Besides leisure, literature is a means to present messages, reflection and discussion about human issues, therefore an important subject to psychosocial investigation. Aiming to understand the grandmother as a character two stories for children written by two well known Brazilian writers were analyz [...] ed, Bisa Bia Bisa Bel, by Ana Maria Machado and Atrás da Porta (Behind the Door), by Ruth Rocha. The qualitative approach of content analysis allowed the following categories: description of the characters and of their relationships; symbol analysis using Analytical Psychology; socio-historical context; authors’ comprehension about education; concept of infancy; and literature as a means for author’s message. Grand-mothers were presented as representing a previous generation(s), transmitting cultural and social tradition, sources of symbolic heritage (cultural, familiar, intellectual), contributing to their grandchildren’s intellectual development and identity formation.

  10. Declines in populations of Salix caprea L.during forest regeneration after strong herbivore pressure

    Directory of Open Access Journals (Sweden)

    Janusz B. Fali?ski

    2014-02-01

    Full Text Available Communities of broadleaved forest subject to strong pressure from large herbivores underwent degeneration. The relief of this pressure led to regeneration of the community, in which an important role was played by the sallow Salix caprea and other light-seeded pioneer species of tree (Populus tremula, Betula pendula and B. pubescens. Regeneration involving Salix caprea proceeded following the conservatorial protection of the degenerate stands in a reserve and later in Bia?owie?a National Park. The emergence and development of the population of Salix caprea proceeded following the invasion of spruce, which coincided with the period of enhanced animal pressure on broadleaved forest. Salix caprea filled all the gaps in the tree stand arising as a result of the destruction of trees and undergrowth by herbivores (in the years 1892-1915. It also appeared en masse on old, at that time unforested, clearings and felled areas. In these places, Salix caprea created very abundant populations, with particular trees being in good condition, with a habit typical of forest trees and attaining considerable heights. The majority of trees were 50-60 years old at the time of death, although individuals reached 74 years of age. The process of extinction of the sallow population - observed over 19 years on permanent plots and fixed trees - proceeded very quickly, especially in the first decade of observation. It led to the almost complete disappearance of sallow for the forest communities of Bia?owie?a National Park. The death of individual trees is preceded by impairment of their health and reduced annual increments in the 4-9 last years of life. The extinction of the population is associated with the loss of its primary phenological differentiation and with a change in the sex structure of the population from a prevalence of female trees to a near even distribution of the two sexes. The development of the populations of permanent constituents of the forest (Carpinus betulus, Tilia cordata, Acer platanoides and Ulmus glabra under the canopy of light-seeded trees, and the non-creation of a new generation of pioneer species points to the imminent end of the process of regeneration in the forest communities of Bia?owie?a National Park.

  11. Complications of intra-aortic balloon in a cohort of hospitalized patients: implications for nursing care / Complicações do balão intra-aórtico em uma coorte de pacientes hospitalizados: implicações para a assistência de enfermagem / Complicaciones del balón intraaórtico en una cohorte de pacientes hospitalizados: implicaciones para la asistencia de enfermería

    Scientific Electronic Library Online (English)

    Renata Bacelar Silva de, Assis; Karina, Azzolin; Marta, Boaz; Eneida Rejane, Rabelo.

    2009-10-01

    Full Text Available Este estudo teve como objetivos descrever as complicações decorrentes da utilização do balão intra-aórtico (BIA), relacionando-as com o tempo de permanência, com a presença de fatores de risco/comorbidades e com os registros de enfermagem. Utilizou-se como método a coorte histórica, com análise de p [...] rontuários por meio de preenchimento de instrumento específico para o estudo. Após avaliação de 104 pacientes, idade média 65±11, 52% sexo masculino, os resultados mostraram que 26 (25%) apresentaram complicações vasculares, sendo a isquemia (25%) a mais incidente; entre os fatores de risco/comorbidades, o que mais se relacionou com complicações foi a doença vascular periférica (56,3%, p=0,003). Quanto às evoluções de enfermagem, 30 (29%) apresentavam registro do uso do cateter, e 28 (27%) relatavam o estado clínico do paciente após a sua retirada. Conclui-se que este estudo demonstrou que o índice de complicações ainda é alto quando relacionado ao BIA. Dentre os fatores de risco/comorbidades, a doença vascular periférica foi significativamente relacionada com complicações. Os registros dos enfermeiros foram subótimos. Abstract in spanish Este estudio tuvo como objetivos describir las complicaciones provenientes de la utilización del balón intraaórtico (BIA), relacionándolas con el tiempo de permanencia, con la presencia de factores de riesgo/enfermedades concomitantes y con los registros de enfermería. Se utilizó como método la coho [...] rte histórica, con análisis de fichas por medio del llenado de un instrumento construido específicamente para el estudio. Después de la evaluación de 104 pacientes, edad promedio 65±11, 52% sexo masculino, los resultados mostraron que 26 (25%) presentaron complicaciones vasculares, siendo la isquemia (25%) la más incidente; entre los factores de riesgo/enfermedades concomitantes, el que más se relacionó con complicaciones fue la enfermedad vascular periférica (56,3%, p=0,003). En lo que se refiere a las evaluaciones de enfermería, 30 (29%) presentaban registro del uso del catéter, y 28 (27%) relataban el estado clínico del paciente después de su retirada. Se concluye que este estudio demostró que el índice de complicaciones es todavía alto cuando relacionado al BIA. Entre los factores de riesgo/enfermedades concomitantes, la enfermedad vascular periférica fue significativamente relacionada con complicaciones. Los registros de los enfermeros no fueron exhautivos. Abstract in english OBJECTIVES: To describe complications associated to the use of intra-aortic balloon pumps (IABP), and their relationship with dwelling time, presence of risk factors/comorbidities, and nursing records. METHODS: Retrospective cohort study, in which medical records were analyzed through the completion [...] of specifically designed forms. RESULTS: In total, 104 patients were included, with mean age 65±11 years, 52% men; 26 (25%) of them presented vascular complications, more frequently ischemia (25%); peripheral vascular disease was the risk factor/comorbidity more frequently related to complications (56.3%; p=0.003). Nursing records showed that the use of catheter was recorded in 30 cases (29%), and the patient's clinical situation after its removal in 28 cases (27%). CONCLUSION: This study showed that the frequency of complications related to IABP is high. Considering risk factor/comorbidity factors, peripheral vascular disease was significantly associated to complications. Nursing records were sub-optimal.

  12. Complications of intra-aortic balloon in a cohort of hospitalized patients: implications for nursing care Complicaciones del balón intraaórtico en una cohorte de pacientes hospitalizados: implicaciones para la asistencia de enfermería Complicações do balão intra-aórtico em uma coorte de pacientes hospitalizados: implicações para a assistência de enfermagem

    Directory of Open Access Journals (Sweden)

    Renata Bacelar Silva de Assis

    2009-10-01

    Full Text Available OBJECTIVES: To describe complications associated to the use of intra-aortic balloon pumps (IABP, and their relationship with dwelling time, presence of risk factors/comorbidities, and nursing records. METHODS: Retrospective cohort study, in which medical records were analyzed through the completion of specifically designed forms. RESULTS: In total, 104 patients were included, with mean age 65±11 years, 52% men; 26 (25% of them presented vascular complications, more frequently ischemia (25%; peripheral vascular disease was the risk factor/comorbidity more frequently related to complications (56.3%; p=0.003. Nursing records showed that the use of catheter was recorded in 30 cases (29%, and the patient's clinical situation after its removal in 28 cases (27%. CONCLUSION: This study showed that the frequency of complications related to IABP is high. Considering risk factor/comorbidity factors, peripheral vascular disease was significantly associated to complications. Nursing records were sub-optimal.Este estudio tuvo como objetivos describir las complicaciones provenientes de la utilización del balón intraaórtico (BIA, relacionándolas con el tiempo de permanencia, con la presencia de factores de riesgo/enfermedades concomitantes y con los registros de enfermería. Se utilizó como método la cohorte histórica, con análisis de fichas por medio del llenado de un instrumento construido específicamente para el estudio. Después de la evaluación de 104 pacientes, edad promedio 65±11, 52% sexo masculino, los resultados mostraron que 26 (25% presentaron complicaciones vasculares, siendo la isquemia (25% la más incidente; entre los factores de riesgo/enfermedades concomitantes, el que más se relacionó con complicaciones fue la enfermedad vascular periférica (56,3%, p=0,003. En lo que se refiere a las evaluaciones de enfermería, 30 (29% presentaban registro del uso del catéter, y 28 (27% relataban el estado clínico del paciente después de su retirada. Se concluye que este estudio demostró que el índice de complicaciones es todavía alto cuando relacionado al BIA. Entre los factores de riesgo/enfermedades concomitantes, la enfermedad vascular periférica fue significativamente relacionada con complicaciones. Los registros de los enfermeros no fueron exhautivos.Este estudo teve como objetivos descrever as complicações decorrentes da utilização do balão intra-aórtico (BIA, relacionando-as com o tempo de permanência, com a presença de fatores de risco/comorbidades e com os registros de enfermagem. Utilizou-se como método a coorte histórica, com análise de prontuários por meio de preenchimento de instrumento específico para o estudo. Após avaliação de 104 pacientes, idade média 65±11, 52% sexo masculino, os resultados mostraram que 26 (25% apresentaram complicações vasculares, sendo a isquemia (25% a mais incidente; entre os fatores de risco/comorbidades, o que mais se relacionou com complicações foi a doença vascular periférica (56,3%, p=0,003. Quanto às evoluções de enfermagem, 30 (29% apresentavam registro do uso do cateter, e 28 (27% relatavam o estado clínico do paciente após a sua retirada. Conclui-se que este estudo demonstrou que o índice de complicações ainda é alto quando relacionado ao BIA. Dentre os fatores de risco/comorbidades, a doença vascular periférica foi significativamente relacionada com complicações. Os registros dos enfermeiros foram subótimos.

  13. Impact of Atmospheric Chromatic Effects on Weak Lensing Measurements

    CERN Document Server

    Meyers, Joshua E

    2014-01-01

    Current and future imaging surveys will measure cosmic shear with statistical precision that demands a deeper understanding of potential systematic biases in galaxy shape measurements than has been achieved to date. We use analytic and computational techniques to study the impact on shape measurements of two atmospheric chromatic effects for ground-based surveys such as the Dark Energy Survey (DES) and the Large Synoptic Survey Telescope (LSST): (i) atmospheric differential chromatic refraction (DCR) and (ii) wavelength dependence of seeing. We investigate the effects of using the point spread function (PSF) measured with stars to determine the shape of a galaxy that has a different spectral energy distribution (SED) than the stars. For (i), we extend a study by Plazas & Bernstein based on analytic calculations that show that DCR leads to significant biases in galaxy shape measurements for future surveys, if not corrected. For (ii), we find that the wavelength dependence of seeing leads to significant bia...

  14. Evaluación del estado nutricio en una población mexicana de pacientes adultos con artritis reumatoide Assessment of nutritional status in a Mexican population of adult patients with rheumatoid arthritis

    Directory of Open Access Journals (Sweden)

    L. Puente Torres

    2009-04-01

    Full Text Available Antecedentes: La artritis reumatoide (AR representa un estado inflamatorio crónico que se acompaña de potenciales complicaciones a nivel multiorgánico. Se ha descrito una alta prevalencia de alteraciones nutricias en pacientes con AR, las cuales en conjunto, pueden repercutir negativamente en el curso y pronóstico de la enfermedad ya sea a través de un incremento en la incidencia de morbilidades cardiovasculares o bien imponiendo limitaciones funcionales adicionales a las ya existentes por la enfermedad de base.Propósito: Evaluar nutricionalmente en términos de composición corporal y patrón de ingesta dietaria a una población mexicana con diagnóstico de AR.Material y métodos: Se evaluaron 100 pacientes ambulatorios con el diagnóstico de AR que acuden al servicio de consulta externa de un centro regional de reumatología en San Luís Potosí México. Se determinaron las variables antropométricas, composición corporal por análisis de bioimpedancia eléctrica (BIA y patrones dietarios.Resultados: Se incluyeron un total de 87 (87% mujeres y 13 (13% varones. La edad media fue de 47,6 ± 13,3 años, con una evolución promedio de la enfermedad de 10,18 ± 9,02 años. 79% de los pacientes se encontraban en clase funcional II y 21% en clase funcional III. El índice de masa corporal promedio fue de 26,8 ± 4,4 kg/m2 , 65% de los pacientes presentaron índices de masa corporal (IMC en rango de sobrepeso u obesidad y solo el 2% en rango de desnutrición. 48% de la muestra presentó depleción de masa magra y 94% presentaron incremento en el porcentaje de grasa corporal estimados por BIA y antropometría. 34 pacientes (34% presentaron circunferencia abdominal por arriba de los puntos de corte para el diagnóstico de síndrome metabólico. En cuanto a las características cualitativas de la dieta el 90% de la muestra consumía una dieta inadecuada, con una ingesta calórica diaria promedio de 26.49 ± 8.24 kcal. por día; la ingesta de proteínas fue óptima en la totalidad de la población. Conclusión: Existe una elevada prevalencia de alteraciones nutricias en la población mexicana con AR, los hallazgos mas frecuentes en este estudio fueron disminución en masa magra, incremento en reserva grasa, ingesta calórica disminuida y dietas cualitativamente inadecuadas. Se requieren estrategias de intervención para el abordaje y tratamiento nutricional de pacientes con AR como medidas potenciales que modifiquen el curso y pronóstico de la enfermedad.Background: Rheumatoid arthritis (RA represents a life-long chronic inflammatory process frequently associated to potential multiorganic complications. Cardiovascular diseases and nutritional alterations are increased in AR populations and represent potential factors that alter negatively the disease course and prognosis. Purpose: To evaluate nutritional status from a Mexican AR population, including body composition, anthropometrics and dietary patterns. Material and methods: There were included 100 RA outpatients from a regional rheumatic centre located in San Luis Potosi México. Nutritional assessment included anthropometric evaluation, bioelectrical impedance analysis (BIA and dietary patterns evaluation. Results: 100 RA out-patients were included. Mean age was 47.6 ± 13.3 years, with a mean disease course of 10.18 ± 9.02. 79% of patients were in RA functional class II and 21% in class III. Average body mass index 26.8 ± 4.4 kg/m2 According to body mass index categories, 65% patients were within the range of overweight and obesity and 2% of patients were undernourished. Mean waist circumference 86.7 ± 11.1 cm, 34% of patients showed waist circumference values over the limits established for the definition of metabolic syndrome. Lean body mass was diminished in 48% patients. Body fat mass estimated by anthropometry and BIA was increased in 94 patients (94%. Dietary parameters: Mean energy intake was 26.4 ± 8.2 kcal/kg. There was qualitative nutritional inadequacy in 90 patients (90%. Protein

  15. Observations on aerophytic cyanobacteria and algae from ten caves in the Ojców National Park

    Directory of Open Access Journals (Sweden)

    Joanna Czerwik-Marcinkowska

    2013-04-01

    Full Text Available This study, carried out in 2010–11, focuses on species composition and distribution of cyanobacterial and algal communities colonizing ten caves (Bia?a, Ciemna, Koziarnia, Krakowska, ?okietka, Okopy Wielka Dolna, S?spowska, Sypialnia, Zbójecka and Z?odziejska Caves in the Ojców National Park (South Poland. A total of 85 taxa were identified, 35 of them belonging to cyanobacteria, 30 chlorophytes, and 20 belonging to other groups of algae. Aerophytic cyanobacteria dominated in these calcareous habitats. Nine species, Gloeocapsa alpina, Nostoc commune, Chlorella vulgaris, Dilabifilum arthopyreniae, Klebsormidium flaccidum, Muriella decolor, Neocystis subglobosa, and Orthoseira roseana, were the most abundant taxa in all the caves. The investigated microhabitats offer relatively stable microclimatic conditions and are likely to be responsible for the observed vertical distribution of aerophytic cyanobacteria and algae.

  16. Mineral Resource Information System for Field Lab in the Osage Mineral Reservation Estate

    Energy Technology Data Exchange (ETDEWEB)

    Carroll, H.B.; Johnson, William I.

    1999-04-27

    The Osage Mineral Reservation Estate is located in Osage County, Oklahoma. Minerals on the Estate are owned by members of the Osage Tribe who are shareholders in the Estate. The Estate is administered by the Osage Agency, Branch of Minerals, operated by the U.S. Bureau of Indian Affairs (BIA). Oil, natural gas, casinghead gas, and other minerals (sand, gravel, limestone, and dolomite) are exploited by lessors. Operators may obtain from the Branch of Minerals and the Osage Mineral Estate Tribal Council leases to explore and exploit oil, gas, oil and gas, and other minerals on the Estate. Operators pay a royalty on all minerals exploited and sold from the Estate. A mineral Resource Information system was developed for this project to evaluate the remaining hydrocarbon resources located on the Estate. Databases on Microsoft Excel spreadsheets of operators, leases, and production were designed for use in conjunction with an evaluation spreadsheet for estimating the remaining hydrocarbons on the Estate.

  17. Application of electrochemical frequency modulation for monitoring corrosion and corrosion inhibition of iron by some indole derivatives in molar hydrochloric acid

    International Nuclear Information System (INIS)

    The corrosion inhibition effect of four indole derivatives, namely indole (IND), benzotriazole (BTA), benzothiazole (BSA) and benzoimidazole (BIA), have been used as possible corrosion inhibitors for pure iron in 1 M HCl. In this study, electrochemical frequency modulation, EFM was used as an effective method for corrosion rate determination in corrosion inhibition studies. By using EFM measurements, corrosion current density was determined without prior knowledge of Tafel slopes. Corrosion rates obtained using EFM, were compared to that obtained from other chemical and electrochemical techniques. The results obtained from EFM, EIS, Tafel and weight loss measurements were in good agreement. Tafel polarization measurements show that indole derivatives are cathodic-type inhibitors. Molecular simulation studies were applied to optimize the adsorption structures of indole derivatives. The inhibitor/iron/solvent interfaces were simulated and the adsorption energies of these inhibitors were calculated. Quantum chemical calculations have been performed and several quantum chemical indices were calculated and correlated with the corresponding inhibition efficiencies

  18. Shot noise of inelastic tunneling through quantum dot systems

    CERN Document Server

    Dong, B; Lei, X L; Horing, N J M; Dong, Bing; Horing, Norman J. M.

    2005-01-01

    We present a theoretical analysis of the effect of inelastic electron scattering on current and its fluctuations in a mesoscopic quantum dot (QD) connected to two leads, based on a recently developed nonperturbative technique involving the exact mapping of the many-body electron-phonon coupling problem onto a multichannel single-electron scattering problem. In this, we apply the B\\"uttiker scattering theory of shot noise for a two-terminal mesoscopic device to the multichannel case with differing weight factors and examine zero-frequency shot noise for two special cases: (i) a single-molecule QD and (ii) coupled semiconductor QDs. The nonequilibrium Green's function method facilitates calculation of single-electron transmission and reflection amplitudes for inelastic processes under nonequilibrium conditions in the mapping model. For the single-molecule QD we find that, in the presence of the electron-phonon interaction, both differential conductance and differential shot noise display additional peaks as bia...

  19. Homofobia en estudiantes de trabajo social

    Directory of Open Access Journals (Sweden)

    Adalberto Campo-Arias

    2013-01-01

    Full Text Available La homofobia es una actitud negativa ante personas homosexuales. Varios estudios infor - man altos niveles de homofobia en estudiantes universitarios. Estimar el nivel de homofo - bia en estudiantes de trabajo social. Se llevó a cabo una revisión sistemática de las inves - tigaciones formales disponibles en Ebsco, Imbiomed, Lilacs, MedLine, Ovid y ProQuest. Se incluyeron artículos publicados en español, inglés o portugués entre 1999 y 2010. Las palabras clave para la búsqueda fueron “homophobia”, “homosexuality”, “students” y “social work”. Se realizó un análisis descriptivo de los hallazgos. Un grupo de tres artícu - los se incluyeron en esta revisión. Entre el 6,5 y 77,4% de los estudiantes de trabajo social mostraron altos niveles de homofobia. Al menos uno de cada quince estudiantes de trabajo social informan altos niveles homofobia. En estudiantes colombianos de trabajo social es necesario investigar la presencia de homofobia.

  20. Variations of flaring kernel sizes in various parts of the H-alpha line profile

    CERN Document Server

    Radziszewski, K

    2012-01-01

    We analyze the temporal variations of the sizes and emission intensities of thirtyone flaring kernels in various parts of the H{\\alpha} line profile. We have found that the areas of all kernels decrease systematically when observed in consecutive wavelengths toward the wings of the H{\\alpha} line, but their areas and emission intensity vary in time. Our results are in agreement with the commonly accepted model of the glass-shaped lower parts of the magnetic flaring loops channelling high energy variable particle beams toward the chromospheric plasma. High time resolution spectral-imaging data used in our work were collected using the Large Coronagraph and Horizontal Telescope equipped with the Multi-channel Subtractive Double Pass Spectrograph and the Solar Eclipse Coronal Imaging System (MSDP-SECIS) at the Bia{\\l}k\\'ow Observatory of the University of Wroc{\\l}aw, Poland.

  1. Lower Yakima Valley Wetlands and Riparian Restoration Project. Final environmental assessment

    International Nuclear Information System (INIS)

    Bonneville Power Administration (BPA) proposes to fund that portion of the Washington Wildlife Mitigation Agreement pertaining to the Lower Yakima Valley Wetlands and Riparian Restoration Project (Project) in a cooperative effort with the Yakama Indian Nation and the Bureau of Indian Affairs (BIA). The proposed action would allow the sponsors to secure property and conduct wildlife management activities for the Project within the boundaries of the Yakama Indian Reservation. This Environmental Assessment examines the potential environmental effects of acquiring and managing property for wildlife and wildlife habitat within a large 20, 340 hectare (50, 308 acre) project area. As individual properties are secured for the Project, three site-specific activities (habitat enhancement, operation and maintenance, and monitoring and evaluation) may be subject to further site-specific environmental review. All required Federal/Tribal coordination, permits and/or approvals would be obtained prior to ground disturbing activities

  2. Enhanced network reconstruction from irreducible local information

    CERN Document Server

    Mastrandrea, Rossana; Fagiolo, Giorgio; Garlaschelli, Diego

    2013-01-01

    Network topology plays a key role in many phenomena, from the spreading of diseases to that of financial crises. Whenever the whole structure of a network is unknown, one must resort to reconstruction methods that identify the least biased ensemble of networks consistent with the partial information available. A challenging case is when there is only local (node-specific) information available. For binary networks, the relevant ensemble is one where the degree (number of links) of each node is constrained to its observed value. However, for weighted networks the problem is much more complicated. While the naive approach prescribes to constrain the strengths (total link weights) of all nodes, recent counter-intuitive results suggest that in weighted networks the degrees are often more informative than the strengths, and as `fundamental' as the latter. This implies that the reconstruction of weighted networks would be significantly enhanced by the specification of both quantities, a computationally hard and bia...

  3. A Nanomembrane-Based Bandgap-Tunable Germanium Microdisk Using Lithographically-Customizable Biaxial Strain for Silicon-Compatible Optoelectronics

    CERN Document Server

    Sukhdeo, David S; Kang, Ju-Hyung; Brongersma, Mark L; Saraswat, Krishna C

    2014-01-01

    Strain engineering has proven to be vital for germanium-based photonics, in particular light emission. However, applying a large permanent biaxial strain to germanium has been a challenge. We present a simple, CMOS-compatible technique to conveniently induce a large, spatially homogenous strain in microdisks patterned within ultrathin germanium nanomembranes. Our technique works by concentrating and amplifying a pre-existing small strain into the microdisk region. Biaxial strains as large as 1.11% are observed by Raman spectroscopy and are further confirmed by photoluminescence measurements, which show enhanced and redshifted light emission from the strained microdisks. Our technique allows the amount of biaxial strain to be customized lithographically, allowing the bandgaps of different microdisks to be independently tuned in a single mask process. Our theoretical calculations show that this platform can deliver substantial performance improvements, including a >200x reduction in the lasing threshold, to bia...

  4. Reviewer Acknowledgements for International Journal of Statistics and Probability, Vol. 4, No. 1

    Directory of Open Access Journals (Sweden)

    Wendy Smith

    2014-12-01

    Full Text Available International Journal of Statistics and Probability wishes to acknowledge the following individuals for their assistance with peer review of manuscripts for this issue. Their help and contributions in maintaining the quality of the journal is greatly appreciated. Many authors, regardless of whether International Journal of Statistics and Probability publishes their work, appreciate the helpful feedback provided by the reviewers. Reviewers for Volume 4, Number 1 Abd Allah Mohamed Abd Elfattah Anwar H Joarder Carolyn Huston Chin-Shang Li Encarnación Alvarez-Verdejo Farida Kachapova Gabriel A. Okyere Gane Samb Lo Hongsheng Dai Jacek Bia?ek Marcelo Bourguignon Michele Leonardo Bianchi Mirko D'Ovidio Philip Westgate Sajid Ali Sohair F. Higazi Tewfik Kernane Vyacheslav Abramov Wojciech Gamrot Zaixing Li   Wendy Smith On behalf of, The Editorial Board of International Journal of Statistics and Probability Canadian Center of Science and Education

  5. Processing of porcelain stoneware tile using sugarcane bagasse ash waste

    Directory of Open Access Journals (Sweden)

    Myrian A.S. Schettino

    2015-03-01

    Full Text Available Large amounts of waste materials are discarded in the sugarcane industry. This work investigates the reuse of sugarcane bagasse ash waste as an alternative raw material for porcelain stoneware tile bodies, replacing natural quartz by up to 5 wt.%. The tile pieces were fired at 1230 °C using a fast-firing cycle (< 60 min. The technological properties of the fired tile pieces (e.g., linear shrinkage, water absorption, apparent density, and flexural strength were determined. The sintering process was followed by SEM and XRD analyses. The results show that up to 2.5 wt.% sugarcane bagasse ash waste can be used as a partial replacement for quartz in porcelain stoneware tile (group BIa, ISO 13006 standard, providing excellent technical properties. Hence, its application in high-quality ceramic tile for use in civil construction as a low-cost, alternative raw material could be an ideal means of managing sugarcane bagasse ash waste.

  6. Public Expenditure on Education and Healthcare in Nigeria: Who Benefits and Why?

    Directory of Open Access Journals (Sweden)

    Uzochukwu Amakom

    2012-06-01

    Full Text Available People routinely expect their government through public policy to reduce poverty and inequality, and publicspending is one way a policy maker works towards achieving such important task. Education and healthcareprovision have been suggested as key sectors that help every policy maker achieve the above objective. Thestudy evaluated public spending efforts in reducing inequality and poverty at all levels of these two sectors usingthe Benefit Incidence Analysis (BIA in Nigeria. Findings from the study suggest that primary education andhealthcare were more pro-poor in absolute terms than tertiary education and healthcare. Secondary education andhealthcare reveal mixed results, while the findings suggest location bias in benefits from public spending forboth education and healthcare. The study findings therefore, imply that subsidising government services canhave more positive effect on income distribution if properly done than direct consumption or income transfers.

  7. The growing stock of the Republic of Serbia: State and problems

    Directory of Open Access Journals (Sweden)

    Bankovi? Staniša

    2009-01-01

    Full Text Available Based on the data of the National Forest Inventory, this paper presents the basic characteristics of forest ecosystems in Serbia by different qualitative and quantitative parameters. The following parameters were dealt with: land use, forest ownership, origin, naturalness, preservation status, mixture and structural form of forests, percentage of tree species, stand category, volume distribution by diameter degrees, as well as the quantity of dead wood and carbon stock in the forests of Ser­bia. The analysis of the presented state enables the definition of some of strategic problems which individually and acting together burden our forest ecosystems, and whose detailed elaboration, measures and methods of enhancement will be fully expressed in the highest planning document - National Forest Programme. A special section, but without being sufficiently analytical, presents the main data on the growing stock of the Autonomous Province Kosovo and Metohija taken from the Report of the Norwegian Forestry Group.

  8. Future prospects for the drug treatment of epilepsy.

    Science.gov (United States)

    Nicolson, A; Leach, J P

    2001-01-01

    Great progress has been made in the last 150 years in the pharmacological management of epilepsy, and, despite the increasing number of technological advances available, antiepileptic drugs (AEDs) remain the mainstay of treatment for the vast majority of patients with epilepsy. This review looks at possible avenues of development in the drug treatment of epilepsy. The strengths and weaknesses of those AEDs which are currently licensed are examined, and ways in which their use may be improved are discussed (e.g. rational combinations, use of new formulations). Potentially new targets that may allow the development of effective treatments are highlighted (neuroimmunological manipulation, decreasing inherent drug resistance mechanisms, and modification of adenosine neurotransmission), and a summary of the most promising AEDs currently in development is provided [e.g. carabersat, ganaxolone, harkoseride, MDL 27192, safinamide (NW 1015), pregabalin, retigabine, talampanel, valrocemide, losigamone and BIA 2093]. PMID:11735615

  9. Native American Training Program in Petroleum Technology

    Energy Technology Data Exchange (ETDEWEB)

    Ho, Winifred M.; Kokesh, Judith H.

    1999-04-27

    This report outlines a comprehensive training program for members of Native American tribes whose lands have oil and gas resources. The program has two components: short courses and internships. Programs are proposed for: (1) adult tribes representatives who are responsible for managing tribal mineral holdings, setting policy, or who work in the oil and gas industry; (2) graduate and undergraduate college students who are tribal members and are studying in the appropriate fields; and (3) high school and middle school teachers, science teachers. Materials and program models already have been developed for some components of the projects. The plan is a coordinated, comprehensive effort to use existing resources to accomplish its goals. Partnerships will be established with the tribes, the BIA, tribal organizations, other government agencies, and the private sector to implement the program.

  10. Lower Yakima Valley Wetlands and Riparian Restoration Project. Final Environmental Assessment.

    Energy Technology Data Exchange (ETDEWEB)

    United States. Bonneville Power Administration

    1994-10-01

    Bonneville Power Administration (BPA) proposes to fund that portion of the Washington Wildlife Mitigation Agreement pertaining to the Lower Yakima Valley Wetlands and Riparian Restoration Project (Project) in a cooperative effort with the Yakama Indian Nation and the Bureau of Indian Affairs (BIA). The proposed action would allow the sponsors to secure property and conduct wildlife management activities for the Project within the boundaries of the Yakama Indian Reservation. This Environmental Assessment examines the potential environmental effects of acquiring and managing property for wildlife and wildlife habitat within a large 20, 340 hectare (50, 308 acre) project area. As individual properties are secured for the Project, three site-specific activities (habitat enhancement, operation and maintenance, and monitoring and evaluation) may be subject to further site-specific environmental review. All required Federal/Tribal coordination, permits and/or approvals would be obtained prior to ground disturbing activities.

  11. REVIEW: Development of methods for body composition studies

    Science.gov (United States)

    Mattsson, Sören; Thomas, Brian J.

    2006-07-01

    This review is focused on experimental methods for determination of the composition of the human body, its organs and tissues. It summarizes the development and current status of fat determinations from body density, total body water determinations through the dilution technique, whole and partial body potassium measurements for body cell mass estimates, in vivo neutron activation analysis for body protein measurements, dual-energy absorptiometry (DEXA), computed tomography (CT) and magnetic resonance imaging (MRI, fMRI) and spectroscopy (MRS) for body composition studies on tissue and organ levels, as well as single- and multiple-frequency bioimpedance (BIA) and anthropometry as simple easily available methods. Methods for trace element analysis in vivo are also described. Using this wide range of measurement methods, together with gradually improved body composition models, it is now possible to quantify a number of body components and follow their changes in health and disease.

  12. Development of methods for body composition studies

    International Nuclear Information System (INIS)

    This review is focused on experimental methods for determination of the composition of the human body, its organs and tissues. It summarizes the development and current status of fat determinations from body density, total body water determinations through the dilution technique, whole and partial body potassium measurements for body cell mass estimates, in vivo neutron activation analysis for body protein measurements, dual-energy absorptiometry (DEXA), computed tomography (CT) and magnetic resonance imaging (MRI, fMRI) and spectroscopy (MRS) for body composition studies on tissue and organ levels, as well as single- and multiple-frequency bioimpedance (BIA) and anthropometry as simple easily available methods. Methods for trace element analysis in vivo are also described. Using this wide range of measurement methods, together with gradually improved body composition models, it is now possible to quantify a number of body components and follow their changes in health and disease. (review)

  13. DETECCIÓN EN MUESTRA CLÍNICA E IDENTIFICACIÓN DE AISLADOS DEL VIRUS DE LA BRONQUITIS INFECCIOSA AVIAR POR UN ENSAYO DE REVERSO TRANSCRIPCIÓN ACOPLADO A REACCIÓN EN CADENA DE LA POLIMERASA / DETECTION IN CLINICAL SAMPLE AND IDENTIFICATION OF AVIAN INFECTIOUSBRONCHITIS VIRUS ISOLATES BY A REVERSE TRANSCRIPTION POLYMERASECHAIN REACTION ASSAY

    Scientific Electronic Library Online (English)

    Ana María, Acevedo; Yaima, Burgher; M, Colás; Damaris, Relova; Arisel, Correa; Elsa, Bacallao; Julia, Noda.

    2010-08-01

    Full Text Available La bronquitis infecciosa aviar (BIA) es una enfermedad viral ampliamente diseminada en el mundo y se considera una de las principales causas de pérdidas económicas significativas en la industria avícola, debido a que afecta el desarrollo de aves de engorde y ponedoras. En Cuba, el diagnóstico actual [...] se realiza por aislamiento viral y es difícil su identificación por métodos convencionales. Para identificar la posible presencia del virus de la BIA en aislados cubanos se aplicó un ensayo de reverso transcripción acoplado a reacción en cadena de la polimerasa (RT-PCR) específico para este virus. Las muestras de tráquea-pulmón fueron tomadas como grupos de tres y cuatro aves después de la necropsia de cada una, evaluándose un total de once aves. Las secuencias del virus de la BIA fueron detectadas en dos de los tres grupos evaluados. En uno de estos grupos se logró además, la detección del virus a partir de la muestra clínica; aspecto importante para la diferenciación con enfermedades graves que cursan con un cuadro clínico similar como la Influenza aviar y la Enfermedad de Newcastle. La RT-PCR mostró potencial para ser usado en la identificación de aislados del virus de la BIA, así como en el examen directo a partir de muestras clínicas, lo que aporta posibilidades de su empleo en nuestro país para la detección rápida, sensible y específica de este agente, aspecto esencial en el diagnóstico y control de esta infección viral. Abstract in english Avian infectious bronchitis (AIB) is a viral disease worldwide distributed and it is considered one of the main causes of economic losses for poultry industry because of its characteristic of affecting development of broiler and laying hens. In Cuba, the current diagnosis is carried out by viral iso [...] lation and its identification by conventional methods is difficult. In order to identify the possible presence of avian infectious bonchitis virus in cuban isolates a reverse transcription-polymerase chain reaction assay (RT-PCR) specific for this virus was applied. Trachea-lung samples were taken as pooles of three and four birds after each necropsy, evaluating a total of eleven birds. The sequences of AIB virus were detected in two of three pools. In one of these pools the detection from clinical sample was also obtained, a very important aspect for its differentiation with serious diseases with a similar clinical course as Avian influenza and Newcastle disease. The RT-PCR showed a potential in order to be used in the identification of isolates from AIB virus, as well as in the direct examination of clinical samples opening the possibilities of its use in the quick, sensitive and specific detection of this agent in our country an essential aspect in the diagnosis and control of this viral infection.

  14. Echinokandyny w leczeniu inwazyjnych zaka?e? grzybiczych u pacjentów z neutropeni?

    Directory of Open Access Journals (Sweden)

    Tomasz Wróbel

    2011-03-01

    Full Text Available Inwazyjne zaka?enia grzybicze u pacjentów z nowotworami uk?adu krwiotwórczego stanowi? istotn? przyczyn? ?miertelno?ci. G?ównym czynnikiem ryzyka wyst?pienia infekcji grzybiczych jest przed?u?aj?ca si? neutropenia. Pacjenci z ostrymi bia?aczkami poddawani chemioterapii, czy te? allogenicznej transplantacji komórek macierzystych s? obarczeni najwi?kszym ryzykiem ci??kiej i przed?u?aj?cej si? neutropenii. Do g?ównych czynników etiologicznych inwazyjnych zaka?e? grzybiczych zalicza si? grzyby z rodzaju Candida i Aspergillus. Dotychczas stosowane antymykotyki, takie jak polieny, ust?puj? miejsca nowym, mniej toksycznym lekom. Obiecuj?c? grup? stanowi? echinokandyny, które ze wzgl?du na szerokie spektrum aktywno?ci i profil bezpiecze?stwa znalaz?y swoje miejsce w terapii inwazyjnych zaka?e? grzybiczych u chorych z neutropeni?.

  15. Body composition and phase angle in Russian children in remission from acute lymphoblastic leukemia

    Science.gov (United States)

    Tseytlin, G. Ja; Khomyakova, I. A.; Nikolaev, D. V.; Konovalova, M. V.; Vashura, A. Yu; Tretyak, A. V.; Godina, E. Z.; Rudnev, S. G.

    2010-04-01

    Elevated degree of body fatness and changes in other body composition parameters are known to be common effects of treatment for acute lymphoblastic leukemia (ALL) in children. In order to study peculiarities of somatic growth and development in ALL survivors, we describe the results of BIA body composition analysis of 112 boys and 108 girls aged 5-18 years in remission from ALL (remission time range 1-13 years) compared to data from the same number of age- and sex-matched healthy controls (n=220). Detrimental effect on height in ALL boys was observed, whereas girls experienced additional weight gain compared to healthy subjects. In ALL patients, resistance, body fat, and percent body fat were significantly increased. The reactance, phase angle, absolute and relative values of skeletal muscle and body cell mass were significantly decreased. Principal component analysis revealed an early prevalence of adiposity traits in the somatic growth and development of ALL girls compared to healthy controls.

  16. Evaluación del estado nutricio en una población mexicana de pacientes adultos con artritis reumatoide / Assessment of nutritional status in a Mexican population of adult patients with rheumatoid arthritis

    Scientific Electronic Library Online (English)

    L., Puente Torres; G. F., Hurtado Torres; C., Abud Mendoza; A., Bravo Ramírez.

    2009-04-01

    Full Text Available Antecedentes: La artritis reumatoide (AR) representa un estado inflamatorio crónico que se acompaña de potenciales complicaciones a nivel multiorgánico. Se ha descrito una alta prevalencia de alteraciones nutricias en pacientes con AR, las cuales en conjunto, pueden repercutir negativamente en el cu [...] rso y pronóstico de la enfermedad ya sea a través de un incremento en la incidencia de morbilidades cardiovasculares o bien imponiendo limitaciones funcionales adicionales a las ya existentes por la enfermedad de base.Propósito: Evaluar nutricionalmente en términos de composición corporal y patrón de ingesta dietaria a una población mexicana con diagnóstico de AR.Material y métodos: Se evaluaron 100 pacientes ambulatorios con el diagnóstico de AR que acuden al servicio de consulta externa de un centro regional de reumatología en San Luís Potosí México. Se determinaron las variables antropométricas, composición corporal por análisis de bioimpedancia eléctrica (BIA) y patrones dietarios.Resultados: Se incluyeron un total de 87 (87%) mujeres y 13 (13%) varones. La edad media fue de 47,6 ± 13,3 años, con una evolución promedio de la enfermedad de 10,18 ± 9,02 años. 79% de los pacientes se encontraban en clase funcional II y 21% en clase funcional III. El índice de masa corporal promedio fue de 26,8 ± 4,4 kg/m2 , 65% de los pacientes presentaron índices de masa corporal (IMC) en rango de sobrepeso u obesidad y solo el 2% en rango de desnutrición. 48% de la muestra presentó depleción de masa magra y 94% presentaron incremento en el porcentaje de grasa corporal estimados por BIA y antropometría. 34 pacientes (34%) presentaron circunferencia abdominal por arriba de los puntos de corte para el diagnóstico de síndrome metabólico. En cuanto a las características cualitativas de la dieta el 90% de la muestra consumía una dieta inadecuada, con una ingesta calórica diaria promedio de 26.49 ± 8.24 kcal. por día; la ingesta de proteínas fue óptima en la totalidad de la población. Conclusión: Existe una elevada prevalencia de alteraciones nutricias en la población mexicana con AR, los hallazgos mas frecuentes en este estudio fueron disminución en masa magra, incremento en reserva grasa, ingesta calórica disminuida y dietas cualitativamente inadecuadas. Se requieren estrategias de intervención para el abordaje y tratamiento nutricional de pacientes con AR como medidas potenciales que modifiquen el curso y pronóstico de la enfermedad. Abstract in english Background: Rheumatoid arthritis (RA) represents a life-long chronic inflammatory process frequently associated to potential multiorganic complications. Cardiovascular diseases and nutritional alterations are increased in AR populations and represent potential factors that alter negatively the disea [...] se course and prognosis. Purpose: To evaluate nutritional status from a Mexican AR population, including body composition, anthropometrics and dietary patterns. Material and methods: There were included 100 RA outpatients from a regional rheumatic centre located in San Luis Potosi México. Nutritional assessment included anthropometric evaluation, bioelectrical impedance analysis (BIA) and dietary patterns evaluation. Results: 100 RA out-patients were included. Mean age was 47.6 ± 13.3 years, with a mean disease course of 10.18 ± 9.02. 79% of patients were in RA functional class II and 21% in class III. Average body mass index 26.8 ± 4.4 kg/m2 According to body mass index categories, 65% patients were within the range of overweight and obesity and 2% of patients were undernourished. Mean waist circumference 86.7 ± 11.1 cm, 34% of patients showed waist circumference values over the limits established for the definition of metabolic syndrome. Lean body mass was diminished in 48% patients. Body fat mass estimated by anthropometry and BIA was increased in 94 patients (94%). Dietary parameters: Mean energy intake was 26.4 ± 8.2 kcal/kg. There was qualitative nutritional inadequacy in 90 patients (90%). Protein intake w

  17. Bisimide amine cured epoxy /IME/ resins and composites. II - Ten-degree off-axis tensile and shear properties of Celion 6000/IME composites

    Science.gov (United States)

    Scola, D. A.

    1982-01-01

    Bisimide amines (BIAs), which are presently used as curing agents in a state-of-the-art epoxy resin, are oligomeric and polymeric mixtures. A series of composites consisting of the novel BIA-cured epoxy resin reinforced with Celion 6000 graphite fibers were fabricated and evaluated, and the ten-degree, off-axis uniaxial tensile and shear properties of these composites were determined. The use of the intralaminar shear strain-to-failure was used in the calculation of resin shear strain-to-failure. Study results indicate that several of these novel composite systems exhibit shear strain properties that are superior to those of the control composite system of the present experiments, which employed a sulfone curing agent.

  18. Synthesis and characterization of bisimide amines and bisimide amine-cured epoxy resins

    Science.gov (United States)

    Scola, D. A.

    1983-01-01

    An attempt is made to develop tough, moisture resistant, high char yield epoxy resins by means of novel bisimide amine (BIA) hardener curing agents and a state-of-the-art epoxy resin system. The BIAs are isolated as mixtures containing monomer, oligomer, and polymeric species, and then characterized by elemental analysis and high pressure liquid chromatography. The bisimide amine-cured epoxies (IMEs) were characterized with respect to moisture absorption, thermal properties, and physical and mechanical properties, as well as in the role of matrices in Celion 6000/IME composites. The relative toughness characteristics of each IME formulation was measured by the 10 deg off-axis tensile test, measuring the uniaxial tensile strength, shear strength, and shear-strain-to-failure of the composite systems.

  19. Task 5. Native [American] Tribes Training Initiative and Outreach Work Authorization 97-A02: Field Demonstrations in High Priority Reservoirs

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-04-27

    Twenty-seven Native American tribal members, council members, and other interested parties gathered in Santa Fe, New Mexico, to attend the Native American Workshop on Petroleum Energy on August 11 and 12, 1997, sponsored by the U.S. Department of Energy and presented by BDM-Oklahoma, Inc, staff. Tribes represented at the workshop included the Jicarilla Apache, Pueblo of Acoma and Ute. Representatives of the Environmental Protection Agency (USEPA), Bureau of Indian Affairs (BIA), Bureau of Land Management (BLM), and Minerals Management Service (MMS) also attended. BDM-Oklahoma developed and organized the Native American Workshop on Petroleum Energy to help meet the goals of the U.S. Department of Energy's Domestic Gas and Oil Initiative to help Native American tribes become more self-sufficient in developing and managing petroleum resources.

  20. Sizes of flaring kernels in various parts of the H? line profile

    Directory of Open Access Journals (Sweden)

    K. Radziszewski

    2008-10-01

    Full Text Available In this paper we present new results of spectra-photometrical investigations of the flaring kernels' sizes and their intensities measured simultaneously in various parts of the H? line profile. Our investigations were based on the very high temporal resolution spectral-imaging observations of the solar flares collected with Large Coronagraph (LC, Multi-channel Subtractive Double Pass Spectrograph and Solar Eclipse Coronal Imaging System (MSDP-SECIS at Bia?kow Observatory (University of Wroc?aw, Poland.

    We have found that the areas of the investigated individual flaring kernels vary in time and in wavelengths, as well as the intensities and areas of the H? flaring kernels decreased systematically when observed in consecutive wavelengths toward the wings of the H? line. Our result could be explained as an effect of the cone-shaped lower parts of the magnetic loops channeling high energy particle beams exciting chromospheric plasma.

  1. The Effects of Banking Regulation on Asset Quality: A Panel Analysis

    Directory of Open Access Journals (Sweden)

    Nader Alber

    2014-06-01

    Full Text Available This paper attempts to investigate the effects of banking regulation on asset quality. This has been conducted using a sample of 14 countries from 1 Middle East & Africa, 2 Europe & Central Asia, 3 Latin America & Caribbean and 4 East Asia & Pacific, over the period from 2006 to 2012. Asset quality is measured by “bank nonperforming loans to gross loans” according to The World Bank database regarding World Development Indicators, while banking regulation is measured by the “response to Basel implementation” according to FSI survey of July 2013. Results indicate that implementation of SA “Standardized Approach” and Conserv “Capital conservation buffer” may affect “asset quality” for low-asset quality countries (Middle East & Africa and Europe & Central Asia groups, while implementation of BIA “Basic indicator approach “ and P2 “Pillar2” may affect “asset quality” for high-asset quality ones (Latin America & Caribbean and East Asia & Pacific groups.

  2. Contamination of soil with eggs of geohelminths in recreational areas in the Lublin region of Poland.

    Science.gov (United States)

    Bojar, Hubert; K?ape?, Teresa

    2012-01-01

    Recreational areas cover parks, bicycle paths, lawns, urban squares, sports complexes, holiday camp areas, playgrounds for children, beaches, and even spontaneously used green field open spaces. While using recreational areas, people take with them accompanying animals (dogs, cats). These animals constitute the main source and reservoir of many dangerous zoonoses, including parasitoses caused by roundworms of the genus Toxocara and Trichuris. The objective of the presented study was determination of the level of contamination of soil with parasites' developmental forms (eggs of Toxocara spp., Ascaris spp., Trichuris spp and Ancylostoma) in selected recreational areas in the Lublin Region of southeastern Poland. The material for the study was collected from beaches in recreational areas located around the Bia?e Lake near W?odawa, the water reservoirs in Krasnobród and Janów Lubelski. The studies were carried out from May-October 2010 durng which time a total number of 215 samples of sand were collected. Eggs of Ascaris spp. and Trichuris spp. were detected based on the Polish Standard PN-Z-19000-4/2001. Beaches on the Bia?e Lake were the most contaminated. The eggs of intestinal parasites were isolated from 6 per 15 samples examined, which is 40%. In one sample, the presence of the eggs of 3 types of parasites were observed, while the eggs of Ancylostoma were not found in any of the samples. Attention should also be paid to the possibility of contamination of recreational areas with the eggs of intestinal parasites by wild animals. Recently in Poland, as well as in many other European countries, the phenomenon of synantropization of wild living animals has been observed, which most frequently concerned wild boar (Sus scrofa) and red fox (Vulpes vulpes). PMID:22742799

  3. El análisis de impacto presupuestario en salud: puesta al día con un modelo de abordaje genérico / Budgetary impact analysis in health: update with a model using a generic approach

    Scientific Electronic Library Online (English)

    Osvaldo, Ulises Garay; Joaquín E., Caporale; Andrés, Pichón-Riviere; Sebastián, García Martí; Mercedes, Mac Mullen; Federico, Augustovski.

    2011-09-01

    Full Text Available El Análisis de Impacto Presupuestario (AIP) en el campo de la salud puede ser definido como la estimación de los costos financieros netos que le representarían a una institución dar cobertura a una determinada intervención. En la práctica, los AIP se utilizan frecuentemente para decidir la inclusión [...] o exclusión de medicamentos en formularios terapéuticos y notoriamente han obligado a reconocer que las Evaluaciones Económicas representan una mirada parcial en el análisis de las consecuencias de la incorporación de tecnologías sanitarias. Este trabajo procura identificar los determinantes y componentes de los análisis de impacto presupuestario, y a partir de ello describir el desarrollo de un modelo creado en una planilla de cálculo que permite considerar cualquier tecnología sanitaria y obtener estimaciones con diferentes grados de complejidad. Su diseño incorpora de forma explícita las habilidades del usuario y las deficiencias de información, buscando a su vez promover el desarrollo de estas herramientas en los ámbitos de gestión de nuestros países. Abstract in english Budgetary Impact Analysis (BIA) applied to health care can be defined as the estimate of the net financial costs that a given intervention would represent for a health care institution given the case it was covered. Routinely, BIAs are used to decide the inclusion or exclusion of drugs in therapeuti [...] c schemes; actually, the increased use of BIAs have raised awareness about the fact that health economic evaluations represent a partial view in the analysis of the consequences of incorporating health technologies. This paper seeks to identify the determinants and components of BIA, and to describe the development of a spreadsheet model that enables us to assess the Budget impact of any health technology and perform estimations with differing degrees of complexity. Its design explicitly adapts to the user skills and gaps in information, thus seeking to promote the development of these tools in the management fields in our countries.

  4. El análisis de impacto presupuestario en salud: puesta al día con un modelo de abordaje genérico / Budgetary impact analysis in health: update with a model using a generic approach

    Scientific Electronic Library Online (English)

    Osvaldo, Ulises Garay; Joaquín E., Caporale; Andrés, Pichón-Riviere; Sebastián, García Martí; Mercedes, Mac Mullen; Federico, Augustovski.

    2011-07-01

    Full Text Available El Análisis de Impacto Presupuestario (AIP) en el campo de la salud puede ser definido como la estimación de los costos financieros netos que le representarían a una institución dar cobertura a una determinada intervención. En la práctica, los AIP se utilizan frecuentemente para decidir la inclusión [...] o exclusión de medicamentos en formularios terapéuticos y notoriamente han obligado a reconocer que las Evaluaciones Económicas representan una mirada parcial en el análisis de las consecuencias de la incorporación de tecnologías sanitarias. Este trabajo procura identificar los determinantes y componentes de los análisis de impacto presupuestario, y a partir de ello describir el desarrollo de un modelo creado en una planilla de cálculo que permite considerar cualquier tecnología sanitaria y obtener estimaciones con diferentes grados de complejidad. Su diseño incorpora de forma explícita las habilidades del usuario y las deficiencias de información, buscando a su vez promover el desarrollo de estas herramientas en los ámbitos de gestión de nuestros países. Abstract in english Budgetary Impact Analysis (BIA) applied to health care can be defined as the estimate of the net financial costs that a given intervention would represent for a health care institution given the case it was covered. Routinely, BIAs are used to decide the inclusion or exclusion of drugs in therapeuti [...] c schemes; actually, the increased use of BIAs have raised awareness about the fact that health economic evaluations represent a partial view in the analysis of the consequences of incorporating health technologies. This paper seeks to identify the determinants and components of BIA, and to describe the development of a spreadsheet model that enables us to assess the Budget impact of any health technology and perform estimations with differing degrees of complexity. Its design explicitly adapts to the user skills and gaps in information, thus seeking to promote the development of these tools in the management fields in our countries.

  5. El análisis de impacto presupuestario en salud: puesta al día con un modelo de abordaje genérico Budgetary impact analysis in health: update with a model using a generic approach

    Directory of Open Access Journals (Sweden)

    Osvaldo Ulises Garay

    2011-09-01

    Full Text Available El Análisis de Impacto Presupuestario (AIP en el campo de la salud puede ser definido como la estimación de los costos financieros netos que le representarían a una institución dar cobertura a una determinada intervención. En la práctica, los AIP se utilizan frecuentemente para decidir la inclusión o exclusión de medicamentos en formularios terapéuticos y notoriamente han obligado a reconocer que las Evaluaciones Económicas representan una mirada parcial en el análisis de las consecuencias de la incorporación de tecnologías sanitarias. Este trabajo procura identificar los determinantes y componentes de los análisis de impacto presupuestario, y a partir de ello describir el desarrollo de un modelo creado en una planilla de cálculo que permite considerar cualquier tecnología sanitaria y obtener estimaciones con diferentes grados de complejidad. Su diseño incorpora de forma explícita las habilidades del usuario y las deficiencias de información, buscando a su vez promover el desarrollo de estas herramientas en los ámbitos de gestión de nuestros países.Budgetary Impact Analysis (BIA applied to health care can be defined as the estimate of the net financial costs that a given intervention would represent for a health care institution given the case it was covered. Routinely, BIAs are used to decide the inclusion or exclusion of drugs in therapeutic schemes; actually, the increased use of BIAs have raised awareness about the fact that health economic evaluations represent a partial view in the analysis of the consequences of incorporating health technologies. This paper seeks to identify the determinants and components of BIA, and to describe the development of a spreadsheet model that enables us to assess the Budget impact of any health technology and perform estimations with differing degrees of complexity. Its design explicitly adapts to the user skills and gaps in information, thus seeking to promote the development of these tools in the management fields in our countries.

  6. Effects of a 12-week, school-based obesity management program on obese primary school children

    Directory of Open Access Journals (Sweden)

    Han Gyu Kim

    2010-03-01

    Full Text Available Purpose:This study was designed to determine the effects of a school-based obesity-management program on obese primary school children. Methods:A total of 995 children (6&#8211;12 years old in a primary school were screened in March 2008, and of those, 101 obese students (44 boys and 57 girls, body mass index (BMI ?#249;5 percentile were enrolled for a study group. The school- based, obesity management program, which includes physical exercise and nutritional education, was conducted as part of an extracurricular program for 12 weeks. The measurement of height, weight, waist circumference, blood pressure (BP, and bioelectrical impedance analysis (BIA was performed before and after the program. Results:Height and weight increased significantly (P&lt;0.05. The BMI and obesity index decreased significantly (P&lt;0.01. Systolic and diastolic BP decreased significantly (P&lt;0.01. BMI decreased in 61.4% of boys and 66.7% of girls. Protein and basal metabolic rate (BMR increased significantly on the BIA (P&lt;0.01. Fat decreased significantly (P&lt;0.05. The total body water (TBW and percent body fat (PBF decreased significantly (P&lt;0.01. The changes in protein, fat, TBW, PBF, and BMR significantly correlated to the change in BMI (P&lt;0.05. In a multiple logistic regression analysis, BMI change was significantly correlated to the changes in protein and fat content (P&lt;0.01. Conclusion:The school-based obesity management program is a very effective way to manage obesity for obese primary school children.

  7. Weight loss resistance: a further consideration for the nutritional management of obese Equidae.

    Science.gov (United States)

    Argo, Caroline McG; Curtis, Gemma C; Grove-White, Dai; Dugdale, Alexandra H A; Barfoot, Clare F; Harris, Patricia A

    2012-11-01

    Evidence-based, weight loss management advice is required to address equine obesity. Changes in body mass (BM), body condition score (BCS), heart (HG) and belly circumference (BG), direct (ultrasonographic) and indirect (D(2)O dilution, bioelectrical impedance analysis [BIA]) measures of body fat as well as indices of insulin resistance (IR) were monitored in 12 overweight (BCS ? 7/9) horses and ponies of mixed breed and gender for 16 weeks. Animals were randomly assigned to two groups (Group 1, n=6, BCS 7.6/9 ± 0.6, 489 ± 184.6 kg; Group 2, n=6, BCS 8.1/9 ± 0.6, 479 ± 191.5 kg). Daily dry matter intake (DMI) was restricted to 1.25% BM as one of two, near-isocaloric (DE ?0.115 MJ/kg BM/day), forage-based diets (Group 1, 0.8% BM chaff-based feed: 0.45% BM hay; Group 2, 1.15% BM hay: 0.1% BM nutrient-balancer). Statistical modelling revealed considerable between-animal heterogeneity in proportional weight losses (0.16-0.55% of Week 1 BM weekly). The magnitude of weight loss resistance (WLR) or sensitivity to dietary restriction was independent of diet or any measured outset variable and was largely (65%) attributed to animal identity. Predicted rates of weight loss decreased over time. BCS and BIA were poor estimates of D(2)O-derived body fat%. Reciprocal changes in depths of retroperitoneal and subcutaneous adipose tissues were evident. Changes in BG were associated with losses in retroperitoneal fat and BM (r(2), 0.67 and 0.79). Indices of IR improved for 9/12 animals by Week 16. For obese animals, weight loss should be initiated by restricting forage DMI to 1.25% BM. Subsequent restriction to 1% BM may be warranted for WLR animals. PMID:23117030

  8. Effects of nine weeks of beta-hydroxy-beta- methylbutyrate supplementation on strength and body composition in resistance trained men.

    Science.gov (United States)

    Thomson, Jasmine S; Watson, Patricia E; Rowlands, David S

    2009-05-01

    The dietary supplement beta-hydroxy-beta-methylbutyrate (HMB) is claimed to increase strength, lean body mass, and decrease fat mass when used in conjunction with resistance training. Although there is some support for these claims, the evidence is not conclusive, and it is even less so for resistance trained individuals. Therefore, we aimed to further elucidate the effects of HMB supplementation in trained men. A randomized, double-blind, controlled study design was used to investigate the effects of supplementing 22 resistance trained men with 3 g.d of HMB or corn starch placebo for 9 weeks with resistance training. The effect of HMB on strength was determined using the 1-repetition maximum (1RM) method for the lower body (leg extension) and upper body (bench press, bicep preacher curl) at baseline and after the supplementation period. Body composition was assessed by skinfolds and bioelectrical impedance analysis (BIA). Overall, 9 weeks' HMB supplementation resulted in a clear-cut, trivial increase in combined averaged strength measures of 1.6% (90% confidence limits: +/-4.3%). When considered in isolation, however, leg extension 1RM increased by a substantial 9.1% (90% confidence limits: +/-7.5%), but the effect on upper-body strength was inconclusive (bench press: -1.9 +/- 9.3%; bicep curl: -1.7 +/- 4.7%). Based on BIA estimates, HMB had a decreasing (although inconclusive) influence on fat mass of -9 +/- 14%, but it had a clear, trivial effect on fat-free mass of 0.2 +/- 2.2%. The magnitude of change in body mass was trivial, but the probability of substantial reductions in skinfold thicknesses ranged from negligible to likely. In previously trained men, supplementation of HMB in conjunction with resistance training provides a substantial benefit to lower-body strength, but it has negligible effects on body composition. PMID:19387396

  9. Scientific Electronic Library Online (English)

    Karine Anusca, Martins; Estelamaris Tronco, Monego; Régis Resende, Paulinelli; Ruffo, Freitas-Junior.

    2011-12-01

    Full Text Available OBJETIVO: Comparar dois métodos de avaliação da gordura corporal total e sua distribuição. MÉTODOS: Estudo transversal, aninhado a uma coorte. Em amostra de 62 mulheres realizou-se avaliação do estado nutricional, incluindo a gordura corporal (GC) total obtida pelo somatório de dobras cutâneas (?DC) [...] e bioimpedância (BIA). Mensurou-se a distribuição da gordura visceral por ultrassonografia (USG) (espessura de gordura intra-abdominal-EIA) e circunferência da cintura (CC). Foram calculados o coeficiente de correlação de concordância (CCC) e o coeficiente de determinação (r²). RESULTADOS: A média de idade das pacientes foi de 48,19 (8,99) anos. Observou-se 36 (58,06%) mulheres com a CC muito aumentada e 42 (67,74%) com GC aumentada. Identificou-se moderada concordância (r² = 0,42; CCC = 0,59; p Abstract in english OBJECTIVE: To compare two methods for evaluating total body fat and its distribution. METHODS: Cross-sectional, cohort-nested study. Sixty-two women received a nutritional status evaluation which included total body fat (BF) obtained through the sum of skinfolds (?SF) and bioimpedance (BIA). Viscera [...] l fat distribution was measured using ultrasonography (USG) (intra-abdominal fat thickness) (IAT) and waist circumference (WC). The concordance correlation coefficient (CCC) and the determination coefficient (r²) were calculated. RESULTS: Mean patient age was 48.19 (8.99) years. Thirty-six women (58.06%) had a very large WC and 42 (67.74%) had high body fat. There was moderate concordance (r² = 0.42; CCC = 0.59; p

  10. Liver steatosis (LS) evaluated through chemical-shift magnetic resonance imaging liver enzymes in morbid obesity; effect of weight loss obtained with intragastric balloon gastric banding.

    Science.gov (United States)

    Folini, Laura; Veronelli, Annamaria; Benetti, Alberto; Pozzato, Carlo; Cappelletti, Marco; Masci, Enzo; Micheletto, Giancarlo; Pontiroli, Antonio E

    2014-01-01

    The aim of this study was to evaluate in morbid obesity clinical and metabolic effects related to weight loss on liver steatosis (LS), measured through chemical-shift magnetic resonance imaging (MRI) and liver enzymes. Forty obese subjects (8 M/32 W; BMI 42.8 ± 7.12 kg/m(2), mean ± SD) were evaluated for LS through ultrasound (US-LS), chemical-shift MRI (MRI-LS), liver enzymes [aspartate aminotransferase (AST), alanine aminotransferase (ALT), ?-glutamyltransferase (GGT), alkaline phosphatase (ALP)], anthropometric parameters [weight, BMI, waist circumference (WC)], lipids, insulin, insulin resistance (HOMA-IR), glycated hemoglobin (HbA1c), oral glucose tolerance test, and body composition [fat mass (FM) and fat-free mass (FFM) at bio-impedance analysis (BIA)]. Anthropometric measures, MRI-LS, BIA, and biochemical parameters were reevaluated 6 months later in 18 subjects undergoing restrictive bariatric approach, i.e., intragastric balloon (BIB, n = 13) or gastric banding (LAGB, n = 5), and in 13 subjects receiving hypocaloric diet. At baseline, US-LS correlates only with MRI-LS, and the latter correlates with ALT, AST, and GGT. After 6 months, subjects undergoing BIB or LAGB had significant changes of BMI, weight, WC, ALT, AST, GGT, ALP, HbA1c, insulin, HOMA-IR, FM, FFM, and MRI-LS. Diet-treated obese subjects had no significant change of any parameter under study; change of BMI, fat mass, and fat-free mass was significantly greater in LAGB/BIB subjects than in diet-treated subjects. Change of MRI-LS showed a significant correlation with changes in weight, BMI, WC, GGT, ALP, and basal MRI-LS. Significant weight loss after BIB or LAGB is associated with decrease in chemical-shift MRI-LS and with reduction in liver enzymes; chemical-shift MRI and liver enzymes allow monitoring of LS in follow-up studies. PMID:24085682

  11. Validation of a multiplex assay for simultaneous quantification of amyloid-? peptide species in human plasma with utility for measurements in studies of Alzheimer's disease therapeutics.

    Science.gov (United States)

    Lachno, D Richard; Emerson, Julie K; Vanderstichele, Hugo; Gonzales, Celedon; Martényi, Ferenc; Konrad, Robert J; Talbot, Jayne A; Lowe, Stephen L; Oefinger, Paul E; Dean, Robert A

    2012-01-01

    The aim of this study was to validate the INNO-BIA plasma amyloid-? (A?) forms assay for quantification of A?1-40 and A?1-42 according to regulatory guidance for bioanalysis and demonstrate its fitness for clinical trial applications. Validation parameters were evaluated by repeated testing of human EDTA-plasma pools. In 6 separate estimates, intra-assay coefficients of variation (CV) for repeated testing of 5 plasma pools were ?9% and relative error (RE) varied between -35% and +22%. Inter-assay CV (n = 36) ranged from 5% to 17% and RE varied from -17% to +8%. Dilutional linearity was not demonstrated for either analyte using diluent buffer, but dilution with immuno-depleted plasma by 1.67-fold gave results within 20% of target. Analyte stability was demonstrated in plasma at 2-8 °C for up to 6 h. Stability during frozen storage up to 12 months and through 3 freeze-thaw cycles at ? -70 °C was also demonstrated in 5 of 6 individuals but deteriorated thereafter. Neither semagacestat nor LY2811376 interfered with the assay but solanezumab at 500 mg/L reduced recovery of A?1-42 by 53%. Specimens from a Phase I human volunteer study of the ?-secretase inhibitor LY2811376 were tested at baseline and at intervals up to 12 h after single oral doses, demonstrating a clear treatment effect. During 1,041 clinical assay runs from semagacestat studies over 10 months, the CV for plasma quality control pools at three levels were ?15% and RE were <10%. In conclusion, the INNO-BIA plasma assay was successfully validated and qualified for use in clinical research. PMID:22886018

  12. Rola leptyny w regulacji metabolizmu lipidów i w?glowodanów

    Directory of Open Access Journals (Sweden)

    Patrycja Gogga*

    2011-01-01

    Full Text Available Leptyna jest bia?kiem wydzielanym g?ównie przez tkank? t?uszczow?, a jej st??enie we krwi jest ?ci?le zwi?zane z ilo?ci? zapasów energetycznych zgromadzonych w adipocytach. Jako hormon leptyna ma niezwykle szeroki zakres dzia?ania. Bia?ko to bezpo?rednio lub za po?rednictwem uk?adu wspó?czulnego bierze udzia? w regulacji metabolizmu energetycznego. Leptyna hamuje biosyntez? triacylogliceroli w w?trobie i tkance t?uszczowej, a tak?e w mi??niach szkieletowych, obni?aj?c tym samym ilo?? odk?adanych w nich lipidów. W adipocytach leptyna zmniejsza ekspresj? genów koduj?cych syntaz? kwasów t?uszczowych (FAS i karboksylaz? acetylo-CoA (ACC – g?ówne enzymy szlaku biosyntezy kwasów t?uszczowych. Zwi?ksza z kolei ekspresj? genu koduj?cego lipaz? zale?n? od hormonów (HSL, co stymuluje hydroliz? triacylogliceroli w tkance t?uszczowej. Ponadto leptyna wzmaga utlenianie kwasów t?uszczowych w adipocytach, mi??niach szkieletowych oraz w mi??niu sercowym, wywo?uj?c wzrost ekspresji genów koduj?cych podstawowe dla tego procesu enzymy, palmitoilotransferaz? karnitynow? 1 (CPT1 i dehydrogenaz? acylo-CoA o ?redniej d?ugo?ci ?a?cucha (MCAD. Wykazano równie?, ?e hormon ten zwi?ksza wra?liwo?? tkanek na insulin? i poprawia tolerancj? glukozy – pod wp?ywem leptyny wzrasta transport glukozy do komórek oraz intensywno?? glikolizy.Wiadomo, ?e leptyna bierze udzia? w d?ugoterminowej regulacji pobierania pokarmu, jednak coraz wi?cej bada? wskazuje, ?e ma ona równie? wp?yw na przemiany substratów energetycznych w tkankach obwodowych. Leptyna mo?e zatem kontrolowa? homeostaz?? energetyczn? organizmu wywo?uj?c zmiany metabolizmu lipidów i w?glowodanów, przede wszystkim w tkance t?uszczowej i w mi??niach.

  13. Negative screening tests in classical galactosaemia caused by S135L homozygosity.

    LENUS (Irish Health Repository)

    Crushell, E

    2009-06-01

    Classical galactosaemia is relatively common in Ireland due to a high carrier rate of the Q188R GALT mutation. It is screened for using a bacterial inhibition assay (BIA) for free galactose. A Beutler assay on day one of life is performed only in high risk cases (infants of the Traveller community and relatives of known cases). A 16-month-old Irish-born boy of Nigerian origin was referred for investigation of developmental delay, and failure to thrive. He had oral aversion to solids and his diet consisted of cow\\'s milk and milk-based cereal mixes. He was found to have microcephaly, weight <2nd percentile, hepatomegaly and bilateral cataracts. Coagulation screen was normal and transaminases were slightly elevated. His original newborn screen was reviewed and confirmed to have been negative; urinary reducing substances on three separate occasions were negative. Beutler assay demonstrated "absent" red cell galactose-1-phosphate uridyltransferase (GALT) activity. GALT enzyme activity was <0.5 gsubs\\/h per gHb confirming classical galactosaemia. Gal-1-P was elevated at 1.88 micromol\\/gHb. Mutation analysis of the GALT gene revealed S135L homozygosity. S135L\\/S135L galactosaemia is associated with absent red cell GALT activity but with approximately 10% activity in other tissues such as the liver and intestines, probably explaining the negative screening tests and the somewhat milder phenotype associated with this genotype. The patient was commenced on galactose-restricted diet; on follow-up at 2 years of age, growth had normalized but there was global developmental delay. In conclusion, galactosaemia must be considered in children who present with poor growth, hepatomegaly, developmental delay and cataracts and GALT enzyme analysis should be a first line test in such cases. Non-enzymatic screening methods such as urinary reducing substances and BIA for free galactose are not reliable in S135L homozygous galactosaemia.

  14. Straminipilous organisms growing on herbivorous pirapitinga (Piaractus brachypomus) and carnivorous piranha (Pygocentrus nattereri) from Poland / Organismos stramenophila em crescimento na herbívora pirapitinga (Piaractus brachypomus) e na carnívora piranha (Pygocentrus nattereri) da Polônia

    Scientific Electronic Library Online (English)

    B., Czeczuga; A., Godlewska; B., Mazalska; E., Muszy& #324; ska.

    2010-05-01

    Full Text Available Investigamos o crescimento de organismos stramenophila sobre a pele, músculos e fígado da herbívora pirapitinga (Piaractus brachypomus) e da carnívora piranha (Pygocentrus nattereri) em águas de três diferentes níveis de eutrofização. Dezesseis espécies de organismos stramenophila foram encontradas [...] crescendo sobre as partes do corpo investigadas de ambas as espécies de peixes utilizadas como cobaias. O maior número de espécies foi encontrado em cobaias de espécies carnívoras (15), quando comparado com o da herbívora pirapitinga (10 espécies). A maioria das espécies de organismos stramenophila desenvolveu-se sobre a pele de ambas as espécies de peixes. O maior número de espécies de organismos stramenophila foi observado em crescimento nas águas do rio BiaBa (eutrofização do meio), enquanto o número mais baixo ocorreu em cobaias de vasos com água do lago de Dojlidy (eutrofização baixa). Abstract in english We investigated the growth of straminipilous organisms on the skin, muscles and liver of herbivorous pirapitinga (Piaractus brachypomus) and carnivorous piranha (Pygocentrus nattereri) in water of three different eutrophication levels. Sixteen straminipilous organism species were found growing on th [...] e investigated body parts of both species of fish used as baits. The higher number of species was found on the baits of carnivorous species (15) when compared with the ones from the herbivorous pirapitinga (10 species). The highest number of straminipilous organisms species developed on the skin of both species of fish. The highest number of species of straminipilous organisms was observed growing in the water of the BiaBa river (middle eutrophication), while the lowest number occurred in the baits of vessels with water from the Dojlidy pond (low eutrophication).

  15. Influence of caffeine and hyaluronic acid on collagen biosynthesis in human skin fibroblasts

    Directory of Open Access Journals (Sweden)

    Donejko M

    2014-10-01

    Full Text Available Magdalena Donejko,1 Andrzej Przylipiak,1 Edyta Rysiak,2 Katarzyna G?uszuk,2 Arkadiusz Sura?y?ski2 1Department of Esthetic Medicine, 2Department of Medicinal Chemistry, Faculty of Pharmacy, Medical University of Bia?ystok, Bia?ystok, Poland Aim: The aim of this study was to evaluate the effect of caffeine on collagen biosynthesis in human skin fibroblasts and the influence of hyaluronic acid (HA on this process. Materials and methods: Collagen, [3H]-thymidine incorporation, and prolidase activity were measured in confluent human skin fibroblast cultures that had been treated with 1, 2, and 5 mM caffeine and with caffeine and 500 µg/mL HA. Western immunoblot analysis was performed to evaluate expression of ß1-integrin receptor, insulin-like growth factor receptor phospho-Akt protein and mitogen-activated protein kinase (phospho-extracellular signal-regulated kinase. Results: Caffeine inhibited collagen biosynthesis in a dose-dependent manner. The mechanism of this process was found at the level of prolidase activity. Caffeine significantly inhibited the enzyme activity. The addition of HA had no effect on collagen biosynthesis or prolidase activity in fibroblasts incubated with caffeine. Caffeine also had an inhibitory effect on DNA biosynthesis. HA, however, did not have any significant effect on this process. The inhibition of the expression of ß1-integrin and insulin-like growth factor receptor in fibroblasts incubated with the caffeine indicates a possible mechanism of inhibition of collagen biosynthesis. Conclusion: Caffeine reduces collagen synthesis in human cultured skin fibroblasts. HA did not have any significant protective effect on this process. This is the first study to our knowledge that reports caffeine-induced inhibition of collagen synthesis in human skin fibroblasts. Keywords: collagen, caffeine, hyaluronic acid, fibroblast

  16. Antropometria e perfil lipídico em mulheres com câncer de mama: um estudo caso-controle / Anthropometry and lipid profile in women with breast cancer: a case-control study

    Scientific Electronic Library Online (English)

    Karine Anusca, Martins; Ruffo, Freitas-Junior; Estelamaris Tronco, Monego; Régis Resende, Paulinelli.

    2012-10-01

    Full Text Available OBJETIVO: avaliar a composição corporal e o perfil lipídico de mulheres com e sem câncer de mama. MÉTODOS: estudo caso-controle pareado por idade, incluindo 62 mulheres, sendo 31 recém-diagnosticadas com câncer de mama e 31 com alterações mamárias benignas. Os dados foram coletados por meio de entre [...] vista direta, com caracterização sociodemográfica, avaliação da composição corporal por antropometria, incluindo dobras cutâneas (DC) e circunferências, bioimpedância (BIA) e ultrassonografia (USG), além da avaliação do perfil lipídico. Utilizou-se na análise dos dados: Teste de Kolmogorov-smirnov (distribuição normal das variáveis), teste "t" de Student, Qui-quadrado de tendência (U de Mann-Whitney), Qui-quadrado de Pearson, Teste Exato de Fisher e Correção de Yates e "odds ratio". RESULTADOS: comparadas aos controles, mulheres com câncer de mama (casos) apresentaram menor estatura (1,56m±5,68) e (1,59m±6,92), p Abstract in english OBJECTIVE: To assess body composition and lipid profile of women with and without breast cancer. METHODS: We conducted a case-control study matched by age, including 62 women, 31 being newly diagnosed with breast cancer and 31 with benign breast changes. Data were collected through direct interview, [...] with recording of sociodemographic characteristics, body composition assessment by anthropometry, including skinfolds (DC) and circumference, bioelectrical impedance (BIA) and ultrasonography (USG), as well as lipid profile evaluation. Statistical analysis used: Kolmogorov-Smirnov test (normally distributed variables), "t" test, chi-square test for trend (Mann-Whitney U), chi-square test, Fisher's exact test and Yates correction and "odds ratio". RESULTS: When compared with controls, women with breast cancer (cases) had lower height (1.56 m ± 5.68 versus 1.59 m ± 6.92), p

  17. Calibration of bioelectrical impedance analysis for body composition assessment in Ethiopian infants using air-displacement plethysmography

    DEFF Research Database (Denmark)

    Wibæk Christensen, Rasmus; Kæstel, Pernille

    2015-01-01

    BACKGROUND/OBJECTIVES: Assessment of infant body composition (BC) is crucial to understand the consequences of suboptimal nutritional status and postnatal growth, and the effects of public health interventions. Bioelectrical impedance analysis (BIA) is a feasible, relatively inexpensive and noninvasive method for assessing BC. However, very little research has been conducted in low- and middle-income populations, where efforts to prevent or treat malnutrition in early life are a public health priority. We aimed to develop equations for predicting fat-free mass (FFM) and fat mass (FM) based on BIA in 0- to 6-month-old Ethiopian infants. SUBJECTS/METHODS: The study comprised a total of 186 BC assessments performed in 101 healthy infants, delivered at Jimma University Specialized Hospital. Infant air-displacement plethysmography (IADP) was the criterion method, whereas weight, length, sex, age and an impedance index (L(2)/Z50) were predictors. Prediction equations were developed using stepwise multiple linear regression and the accuracy was evaluated with a 10-fold cross-validation approach. RESULTS: A linear regression model based on body weight, age and sex predicted FFM, estimated by IADP, with an adjusted R(2) and root mean square error (RMSE) of 0.94 and 200?g, respectively. Adding impedance index to the model resulted in a significantly improved model fit (R(2)=0.95; RMSE=181?g). For infants below 3 months of age, inclusion of impedance index did not contribute to an improved model fit for predicting FFM compared with a model already comprising weight, sex and age. CONCLUSIONS: The derived equations predicted FFM with acceptable accuracy and may be used in future field surveys, epidemiological studies and clinical trials conducted in similar sub-Saharan African population groups aged 0-6 months.European Journal of Clinical Nutrition advance online publication, 1 April 2015; doi:10.1038/ejcn.2015.51.

  18. Determining the In-Pipe Anaerobic Processing Distance before Draining to Oxidation Pond of Municipal Wastewater Treatment

    Directory of Open Access Journals (Sweden)

    Satreethai Poommai

    2013-04-01

    Full Text Available H. M. The King's initiative Laem Phak Bia environmental research and development (LERD project has been selected Laem Phak Bia sub-district, Ban Laem district, Petchaburi province which is about 18.5 km away from points sources at Petchaburi municipal. Transferring community wastewater was really needed to take HPDE pipe because of high pressure requirement for 50-cm head between Klongyang pumping station to the project site and also unpleasant smell in case of using open channel sewer system. The original point sources are far away about 5 km to 8 km to in-town collection pond which is localized at fresh-food markets, households, shopping center, dessert factories, Thai rice noodle factories, and government offices in which they produce wastewater approximately 7,000 m3/d. The pumping capacity was estimated 3,000 to 3,600 m3/d through 18.5-km HPDE pipe to the LERD's project site without any interruption. The research results found that the Royal LERD wastewater treatment system to decrease the high content of BOD down to under standard value after overflowing weir crest of the last pond (pond5. In addition, the anaerobic organic digestion processing distance was determined by graphical method with free hand curving that pointing out on 2,000 meters that moving from the start-up point at Klongyang collection pond through the 18.5- km HPDE pipe tail. Only the values of BOD and anaerobes had evidently shown in variable patterns, but the others found more or less changeable patterns, i.e. COD, NH4, NO2, alkalinity, hardness, SS. TDS, EC, orthophosphate, total phosphate, temperature, aerobes, facultative bacteria, total coliform, fecal bacteria, and DO (0.000 to 0.003 mg/L.

  19. Metabolismo de repouso de mulheres pós-menopausadas submetidas a programa de treinamento com pesos (hipertrofia) / Resting metabolism of post-menopause women submitted to a training program with weights (hypertrophy)

    Scientific Electronic Library Online (English)

    Mara Cléia, Trevisan; Roberto Carlos, Burini.

    2007-04-01

    Full Text Available O estudo objetivou avaliar o gasto energético de repouso (GER) de mulheres pós-menopausadas submetidas a programa de treinamento com pesos. Foram estudadas 30 mulheres (FSH > 40mIU/mL) entre 45 e 70 anos, separadas em dois grupos (GT: treinamento, n = 15 e GC: controle, n = 15). Calculou-se o índice [...] de massa corporal (kg/m²) e por meio da impedância bioelétrica (BIA) determinaram-se o percentual de gordura corporal e a massa muscular. O GER foi obtido por meio da calorimetria indireta (O2 e CO2 respiratórios) e calculado pela equação de Weir. A mensuração ocorreu após 12 horas de jejum, durante 30 minutos sob temperatura e umidade controladas. O GT participou do programa de treinamento com pesos durante 16 semanas, na freqüência de três vezes por semana. Os dados analisados pelos testes t de Student, Mann-Whitney e ANOVA (p Abstract in english The study had as objective to evaluate the resting energy expenditure (REE) of post-menopause women submitted to a training program with weights. Thirty women, age between 45 and 70 years (FSH > 40 mIUmL), separated in two groups (TG: training n = 15 and CG: control n = 15) were studied. The body ma [...] ss index (kg/m²) was calculated and the body fat percentage and the muscular mass were determined through bioelectric impedance (BIA). The REE was obtained through indirect calorimetry (respiratory O2 and CO2) and calculated by the Weir equation. The measurement occurred after 12 hours of fasting, during 30 minutes under controlled temperature and humidity. The TG participated of the training program with weights during 16 weeks, in the frequency of three times per week. The analyzed data by the t-Student, Mann-Whitney and ANOVA tests (p

  20. Evolución del peso seco en pacientes ancianos en hemodiálisis y posible influencia de la actividad física en el mismo / Evolution of the dry weight in elderly patients in hemodialysis and the possible influence of the physical activity in the same one

    Scientific Electronic Library Online (English)

    Pilar, Peña Amaro; Juan, García López; Rosel, Jimeno Ucles.

    2010-03-01

    Full Text Available El objetivo de este trabajo es analizar la evolución del "peso seco" -masa muscular, masa grasa y agua- en una población de pacientes ancianos afectados por insuficiencia renal crónica terminal (IRCT) en un programa sustitutivo de la función renal en Hemodiálisis (HD), que realizan una actividad fís [...] ica moderada y constante comparada con otra población que no la realiza. La actividad física se ha utilizado como un medio para conservar o mejorar la salud de todos los individuos desde hace muchos años y, por supuesto, en los ancianos también. Es muy valorado en algunas patologías (hipertensión arterial, cardiopatías isquémicas, osteoporosis, diabetes y problemas psicológicos/psiquiátricos). Hemos usado para monitorizar estos parámetros un analizador de masa corporal por Bioimpedancia (BIA) que nos aporta los datos objetivos en cuanto a la composición del cuerpo de un anciano. Así, podremos observar los posibles cambios producidos por el ejercicio. Abstract in english The aim of this work is to analyze the evolution of the dry weight, muscular mass, mass fat and water in a population of patients ancients affected by Renal Insufficiency Terminal Chronicle (IRCT) in program of haemodialysis (HD) that perform a constant and moderate physical activity and other popul [...] ation that not making it. Physical activity has been used as a way to preserve or improve the health of all individuals for many years and certainly in the ancient as well. Very valued in some pathologies (arterial hypertension, cardiopathies isquémicas, osteoporosis, diabetes and psychiatric psychological/problems). to monitorice these parameters we used body mass analyzer Bioimpedance (BIA) that shows us objective data regarding the composition of the body of an elder. Then we can observe the possible changes produced by exercise.

  1. Tyrosine aminotransferase contributes to benzylisoquinoline alkaloid biosynthesis in opium poppy.

    Science.gov (United States)

    Lee, Eun-Jeong; Facchini, Peter J

    2011-11-01

    Tyrosine aminotransferase (TyrAT) catalyzes the transamination of L-Tyr and ?-ketoglutarate, yielding 4-hydroxyphenylpyruvic acid and L-glutamate. The decarboxylation product of 4-hydroxyphenylpyruvic acid, 4-hydroxyphenylacetaldehyde, is a precursor to a large and diverse group of natural products known collectively as benzylisoquinoline alkaloids (BIAs). We have isolated and characterized a TyrAT cDNA from opium poppy (Papaver somniferum), which remains the only commercial source for several pharmaceutical BIAs, including codeine, morphine, and noscapine. TyrAT belongs to group I pyridoxal 5'-phosphate (PLP)-dependent enzymes wherein Schiff base formation occurs between PLP and a specific Lys residue. The amino acid sequence of TyrAT showed considerable homology to other putative plant TyrATs, although few of these have been functionally characterized. Purified, recombinant TyrAT displayed a molecular mass of approximately 46 kD and a substrate preference for L-Tyr and ?-ketoglutarate, with apparent K(m) values of 1.82 and 0.35 mm, respectively. No specific requirement for PLP was detected in vitro. Liquid chromatography-tandem mass spectrometry confirmed the conversion of L-Tyr to 4-hydroxyphenylpyruvate. TyrAT gene transcripts were most abundant in roots and stems of mature opium poppy plants. Virus-induced gene silencing was used to evaluate the contribution of TyrAT to BIA metabolism in opium poppy. TyrAT transcript levels were reduced by at least 80% in silenced plants compared with controls and showed a moderate reduction in total alkaloid content. The modest correlation between transcript levels and BIA accumulation in opium poppy supports a role for TyrAT in the generation of alkaloid precursors, but it also suggests the occurrence of other sources for 4-hydroxyphenylacetaldehyde. PMID:21949209

  2. Fast determination of naproxen in pharmaceutical formulations by batch injection analysis with pulsed amperometric detection

    Scientific Electronic Library Online (English)

    Jessica S., Stefano; Ana Paula de, Lima; Rodrigo H. O., Montes; Eduardo M., Richter; Rodrigo A. A., Muñoz.

    1834-18-01

    Full Text Available Um método eletroanalítico original e rápido para a determinação de naproxeno em formulações farmacêuticas usando análise por injeção em batelada (BIA) com detecção amperométrica pulsada é descrito. Eletrodo de carbono vítreo foi usado como eletrodo de trabalho e solução tampão fosfato 0,05 mol L-1 c [...] omo eletrólito suporte. O método amperométrico envolveu a aplicação contínua de dois pulsos de potencial ao eletrodo de trabalho com intuito de detectar naproxeno pela sua oxidação eletroquímica (+1,5 V por 200 ms) e de limpar a superfície do eletrodo de produtos de adsorção (+1,0 V por 100 ms), evitando contaminação do eletrodo. O método proposto possui várias vantagens para análises de rotina, incluindo: baixo desvio padrão relativo (3,0%, n = 10), elevada frequência analítica (90 h-1), exatidão satisfatória (baseado em determinações comparativas por espectrofluorimetria) e baixo limite de detecção (0,3 µmol L-1). Abstract in english A novel and fast electroanalytical method for naproxen determination in pharmaceutical formulations using batch injection analysis (BIA) with pulsed amperometric detection is described. Bare glassy carbon electrode was used as working electrode and 0.05 mol L-1 phosphate buffer solution as supportin [...] g electrolyte. The amperometric method involved the continuous application of two sequential potential pulses to the working electrode in order to detect naproxen by its electrochemical oxidation (+1.5 V for 200 ms) and to clean the electrode surface from adsorption products (+1.0 V for 100 ms), avoiding electrode contamination. The proposed method has several advantages for routine analysis, including: a low relative standard deviation between injections (3.0%, n = 10), high analytical frequency (90 h-1), satisfactory accuracy (based on comparative determinations by spectrofluorimetry) and low limit of detection (0.3 µmol L-1).

  3. Biochemical and nutritional evaluation of patients with visceral leishmaniasis before and after treatment with leishmanicidal drugs

    Scientific Electronic Library Online (English)

    Mariana, Gatto; Mariana Miziara de, Abreu; Karen Ingrid, Tasca; Jose Claudio, Simao; Carlos Magno Castelo Branco, Fortaleza; Paulo Camara Marques, Pereira; Sueli Aparecida, Calvi.

    2013-12-01

    Full Text Available Introduction Visceral leishmaniasis (VL) is caused by the intracellular protozoan Leishmania donovani complex. VL may be asymptomatic or progressive and is characterized by fever, anemia, weight loss and the enlargement of the spleen and liver. The nutritional status of the patients with VL is a ma [...] jor determinant of the progression, severity and mortality of the disease, as it affects the clinical progression of the disease. Changes in lipoproteins and plasma proteins may have major impacts in the host during infection. Thus, our goal was evaluate the serum total cholesterol, high-density lipoprotein (HDL), low-density lipoprotein (LDL), triglycerides, glucose, albumin, globulin and total protein levels, as well as the body composition, of VL patients before and after treatment. Methods Nutritional evaluation was performed using the bioelectrical impedance analysis (BIA) to assess body composition. Biochemical data on the serum total cholesterol, HDL, LDL, triglycerides, glucose, albumin, globulin and total protein were collected from the medical charts of the patients. Results BIA indicated that both pre-treatment and post-treatment patients exhibited decreased phase angles compared to the controls, which is indicative of disease. Prior to treatment, the patients exhibited lower levels of total body water compared to the controls. Regarding the biochemical evaluation, patients with active VL exhibited lower levels of total cholesterol, HDL, LDL and albumin and higher triglyceride levels compared to patients after treatment and the controls. Treatment increased the levels of albumin and lipoproteins and decreased the triglyceride levels. Conclusions Our results suggest that patients with active VL present biochemical and nutritional changes that are reversed by treatment.

  4. Medición de la grasa corporal mediante impedancia bioeléctrica, pliegues cutáneos y ecuaciones a partir de medidas antropométricas. Análisis comparativo / Body fat estimated by bioelectrical impedance, skinfold thickness and anthropometric equations. A comparative analysis

    Scientific Electronic Library Online (English)

    Vicente, Martín Moreno; Juan Benito, Gómez Gandoy; María Jesús, Antoranz González.

    2001-06-01

    Full Text Available Fundamento: La estimación del porcentaje de grasa corporal (%GC) está adquiriendo una importancia creciente a nivel clínico. El objetivo del estudio es comparar los resultados de %GC obtenidos mediante técnicas aplicables en la consulta diaria: pliegues cutáneos, ecuaciones antropométricas e impedan [...] cia bioeléctrica (IB). Métodos: Estudio descriptivo transversal. Participaron 149 personas, 83 varones y 66 mujeres. Se determinó altura, peso, circunferencia de la cintura (CC), pliegues cutáneos de bíceps, tríceps (PCT), subescapular y suprailíaco, suma y logaritmo de la suma de los cuatro pliegues. Se determinó el %GC mediante las ecuaciones de Siri (global por sexo y específica por edad-sexo), Brozeck (global y específica), Deurenberg y Lean (para CC y CC-PCT) y por IB (Omron BF 300®). La concordancia entre métodos se valoró mediante los coeficientes de correlación intraclase (CCI) y de Spearman (CCS) y el método de Bland-Altman. El método de referencia fue la ecuación de Siri-específica. Resultados: Las medias de %GC fueron 26,8 ± 8,3% (Siri-específica), 25,7 ± 8,1% (Siri-global), 25,97 ± 7,6% (Brozeck-específica), 24,9 ± 7,5% (Brozeck-global), 25,6 ± 8,8% (IB), 28,6 ± 8,2% (Deurenberg), 29,7 ± 8,2% (Lean-cintura) y 29,4 ± 9,3% (Lean-tríceps-cintura). Todos los métodos presentaron CCS > 0,88 y CCI > 0,85 con la ecuación Siri-específica. El mayor grado de acuerdo (Bland-Altman) lo presentaron las relaciones Siri-Brozeck específicas (media 0,8%; intervalo -0,48 a 2,08%) y Siri-específica - IB (1,17; -6,21 a 8,55%). Conclusiones: Las ecuaciones de Deurenberg y Lean no son intercambiables con la IB y los pliegues cutáneos. Se propone la utilización de las ecuaciones de Siri-Brozeck para valorar el %GC, sugiriéndose que el monitor Omron BF 300® puede ser una alternativa válida. Abstract in english Background: There is growing clinical interest in estimating body fat percentages (%FM). The aim of this study was a comparison of body fat measurement by anthropometric equations, skinfold thickness (SFT) and bioelectrical impedance (BIA) methods. Methods: Cross-sectional study. 149 healthy individ [...] uals (83 males and 66 females) were recruited. Height, weight, waist circumference, skinfold of biceps, triceps, subscapular and suprailiac regions, sum and log10 sum of four folds were obtained. %FM were calculated using the Siri equation (for sex or age-sex), Brozeck (sex or age-sex), Deurenberg, Lean and segmental BIA (Omron BF 300®). Methodological differences among the various methods were analyzed with Spearman (SCC) and intraclass (ICC) correlation coefficients and Bland-Altman method. The reference method is the Siri-age-sex equation. Results: The means of %FM were 26.8 ± 8.3% (Siri-age-sex), 25.7 ± 8.1% (Siri-sex), 25.97 ± 7.6% (Brozeck-age-sex), 24.9 ± 7.5% (Brozeck-sex), 25.6 ± 8.8% (BIA), 28.6 ± 8.2% (Deurenberg), 29.7 ± 8.2% (Lean-waist circumference) and 29.4 ± 9.3% (Lean-triceps-waist). The %FM values for all methods were highly intercorrelated (all SCC > 0.83 and CCI > 0.85). Brozeck-age-sex (average difference 0.8%; limits of agreement -0.48 to 2.08%) and BIA (1.17%; -6.21 to 8.55%) show the best agreement according to Bland and Altman analysis with Siri-age-sex equation. Conclusions: Deurenberg and Lean equations provide different body fat mass estimates than those derived from SFT measurement and BIA and thus should not be used interchangeably. The use of Siri-Brozeck equations is recommended for %FM assessment. The results suggest that segmental BIA-Omron BF 300® may be a valid alternative method.

  5. Prototype Tsunami Evacuation Park in Padang, West Sumatra, Indonesia

    Science.gov (United States)

    Tucker, B. E.; Cedillos, V.; Deierlein, G.; Di Mauro, M.; Kornberg, K.

    2012-12-01

    Padang, Indonesia, a city of some 900,000 people, half of whom live close to the coast and within a five-meter elevation above sea level, has one of the highest tsunami risks in the world due to its close offshore thrust-fault seismic hazard, flat terrain and dense population. There is a high probability that a tsunami will strike the shores of Padang, flooding half of the area of the city, within the next 30 years. If that tsunami occurred today, it is estimated that several hundred thousand people would die, as they could not reach safe ground in the ~30 minute interval between the earthquake's occurrence and the tsunami's arrival. Padang's needs have been amply demonstrated: after earthquakes in 2007, 2009, 2011 and 2012, citizens, thinking that those earthquakes might cause a tsunami, tried to evacuate in cars and motorbikes, which created traffic jams, and most could not reach safe ground in 30 minutes. Since 2008, GeoHazards International (GHI) and Stanford University have studied a range of options for improving this situation, including ways to accelerate evacuation to high ground with pedestrian bridges and widened roads, and means of "vertical" evacuation in multi-story buildings, mosques, pedestrian overpasses, and Tsunami Evacuation Parks (TEPs), which are man-made hills with recreation facilities on top. TEPs proved most practical and cost-effective for Padang, given the available budget, technology and time. The Earth Observatory Singapore (EOS) developed an agent-based model that simulates pedestrian and vehicular evacuation to assess tsunami risk and risk reduction interventions in Southeast Asia. EOS applied this model to analyze the effectiveness in Padang of TEPs over other tsunami risk management approaches in terms of evacuation times and the number of people saved. The model shows that only ~24,000 people (20% of the total population) in the northern part of Padang can reach safe ground within 30 minutes, if people evacuate using cars and motorbikes immediately after the earthquake. If one TEP is built, ~46,000 could reach safe ground within 30 minutes, and if three were built ~72,000 could. GHI has acquired permission to build a prototype TEP in the northern part of Padang that would accommodate about 25,000 people during the time of a tsunami. This would cost about 4.7 million, amounting to a cost-per-life-saved of ~US200, far lower than the per capita cost of the other options. The cost of replication should be less. This interdisciplinary, international effort demonstrated that TEPs offer the best option for Padang because they have the potential to save thousands of lives, are relatively simple to build and maintain, invite everyday recreational use by the community, and have attracted strong Indonesian government support as a possible means to manage the country's tsunami risk.

  6. Estado nutricional em nitrogênio da grama esmeralda avaliado por meio do teor foliar, clorofilômetro e imagem digital, em área adubada com lodo de esgoto / Leaf nitrogen nutritional status of zoysia grass evaluated by nitrogen concentration, chlorophyll meter and digital image, in sewage sludge fertilized areas

    Scientific Electronic Library Online (English)

    Clarice, Backes; Roberto Lyra, Villas Bôas; Claudinei Paulo de, Lima; Leandro José Grava de, Godoy; Leonardo Theodoro, Büll; Alessandro José Marques, Santos.

    Full Text Available A intensidade da cor verde da folha pode ser alternativa para estimar a concentração de N na planta, devido à relação entre o teor de clorofila e o de N no tecido foliar. Objetivou-se neste trabalho avaliar índices da cor verde da grama esmeralda obtidos da análise da imagem digital e pelo uso do cl [...] orofilômetro para predizer o estado nutricional em N fornecido pelo lodo de esgoto. O experimento foi instalado e desenvolvido em uma propriedade comercial de grama esmeralda, localizada na cidade de Itapetininga (SP). O delineamento experimental foi em blocos casualizados, com quatro repetições e cinco doses de lodo de esgoto: 0, 10, 20, 30 e 40 Mg ha-1, base seca. As doses de lodo aplicadas correspondem a 100, 200, 300 e 400 kg ha-1 de nitrogênio disponível. Foram avaliadas as concentrações de N e a intensidade de coloração verde da folha pelo uso do clorofilômetro (ICV) e por meio da análise da imagem digital (G, H e ICVE) aos 45, 105 e 165 dias após a aplicação do lodo. Os valores de intensidade obtidos foram correlacionados com a concentração de N na lâmina foliar e com a taxa de cobertura do solo determinada nas mesmas épocas. A aplicação de doses de lodo de esgoto proporcionou aumento dos índices de cor verde e da concentração de N nas folhas da grama esmeralda. A concentração de N na lâmina foliar pode auxiliar a adubação nitrogenada em cobertura, pois proporcionou altas correlações com a taxa de cobertura do solo. O matiz (H) obtido com a imagem digital e a intensidade de cor verde da folha (ICV) obtida com o clorofilômetro correlacionaram-se com a concentração de N e com a taxa de cobertura do solo e, dessa forma, podem servir como índices na recomendação da adubação nitrogenada. Abstract in english The intensity of leaf green color can be an alternative to estimate the N concentration because of the relationship between chlorophyll level and N in leaf tissue. The objective of the work was to assess green index of the zoysiagrass from the digital imaging analysis and the use of chlorophyll mete [...] r to predict the nitrogen nutritional status in sewage sludge fertilized areas. The experiment was carried out on a commercial property of zoysiagrass, located in the county of Itapetininga, State of São Paulo. The experimental design was completely randomized, with five sewage sludge doses: 0, 10, 20, 30 and 40 Mg ha-1, on dry basis (equal to 0, 100, 200, 300 and 400 kg ha-¹) of N available and four replications. The N concentration and green hue intensity were evaluated by using chlorophyll meter (GHI) and by the digital image analysis (G, H and DGCI) at 45th, 105th and the 165th days after sewage sludge application. The intensity values were correlated with the N concentration in the leaf blade and with the soil cover rate determined in the same season. The application of sewage sludge doses increased the green rates and the N concentration in the Zoysia grass leaves. The N concentration leaf can help the nitrogen top-dressed application because it has high correlation with the soil cover rate. The hue (H) obtained with the digital image and green hue intensity (GHI) obtained with the chlorophyll meter are correlated with N concentration and with the soil cover rate and can serve as an index to assist in the recommendation of nitrogen fertilization.

  7. Estado nutricional em nitrogênio da grama esmeralda avaliado por meio do teor foliar, clorofilômetro e imagem digital, em área adubada com lodo de esgoto Leaf nitrogen nutritional status of zoysia grass evaluated by nitrogen concentration, chlorophyll meter and digital image, in sewage sludge fertilized areas

    Directory of Open Access Journals (Sweden)

    Clarice Backes

    2010-01-01

    Full Text Available A intensidade da cor verde da folha pode ser alternativa para estimar a concentração de N na planta, devido à relação entre o teor de clorofila e o de N no tecido foliar. Objetivou-se neste trabalho avaliar índices da cor verde da grama esmeralda obtidos da análise da imagem digital e pelo uso do clorofilômetro para predizer o estado nutricional em N fornecido pelo lodo de esgoto. O experimento foi instalado e desenvolvido em uma propriedade comercial de grama esmeralda, localizada na cidade de Itapetininga (SP. O delineamento experimental foi em blocos casualizados, com quatro repetições e cinco doses de lodo de esgoto: 0, 10, 20, 30 e 40 Mg ha-1, base seca. As doses de lodo aplicadas correspondem a 100, 200, 300 e 400 kg ha-1 de nitrogênio disponível. Foram avaliadas as concentrações de N e a intensidade de coloração verde da folha pelo uso do clorofilômetro (ICV e por meio da análise da imagem digital (G, H e ICVE aos 45, 105 e 165 dias após a aplicação do lodo. Os valores de intensidade obtidos foram correlacionados com a concentração de N na lâmina foliar e com a taxa de cobertura do solo determinada nas mesmas épocas. A aplicação de doses de lodo de esgoto proporcionou aumento dos índices de cor verde e da concentração de N nas folhas da grama esmeralda. A concentração de N na lâmina foliar pode auxiliar a adubação nitrogenada em cobertura, pois proporcionou altas correlações com a taxa de cobertura do solo. O matiz (H obtido com a imagem digital e a intensidade de cor verde da folha (ICV obtida com o clorofilômetro correlacionaram-se com a concentração de N e com a taxa de cobertura do solo e, dessa forma, podem servir como índices na recomendação da adubação nitrogenada.The intensity of leaf green color can be an alternative to estimate the N concentration because of the relationship between chlorophyll level and N in leaf tissue. The objective of the work was to assess green index of the zoysiagrass from the digital imaging analysis and the use of chlorophyll meter to predict the nitrogen nutritional status in sewage sludge fertilized areas. The experiment was carried out on a commercial property of zoysiagrass, located in the county of Itapetininga, State of São Paulo. The experimental design was completely randomized, with five sewage sludge doses: 0, 10, 20, 30 and 40 Mg ha-1, on dry basis (equal to 0, 100, 200, 300 and 400 kg ha-¹ of N available and four replications. The N concentration and green hue intensity were evaluated by using chlorophyll meter (GHI and by the digital image analysis (G, H and DGCI at 45th, 105th and the 165th days after sewage sludge application. The intensity values were correlated with the N concentration in the leaf blade and with the soil cover rate determined in the same season. The application of sewage sludge doses increased the green rates and the N concentration in the Zoysia grass leaves. The N concentration leaf can help the nitrogen top-dressed application because it has high correlation with the soil cover rate. The hue (H obtained with the digital image and green hue intensity (GHI obtained with the chlorophyll meter are correlated with N concentration and with the soil cover rate and can serve as an index to assist in the recommendation of nitrogen fertilization.

  8. Novel technique to retrieve the direct normal irradiance from SEVIRI images over the UAE

    Science.gov (United States)

    Ghedira, H.; Eissa, Y. A.

    2011-12-01

    Satellite-based models that determine direct normal irradiance (DNI) values with high temporal resolution have relatively high RMSE values. In this study, an artificial neural network (ANN) approach was developed to derive DNI values from SEVIRI images under a wide range of sun-satellite geometries. The final product has a temporal resolution of 15 minutes and a spatial resolution of 3 km. ANNs, which imitate the way the brain processes information, are systems that can be trained with sets of inputs and outputs in order to find the best pattern that provides the best match. Given a set of inputs the ANN could then simulate the corresponding output. There are different types of neural networks; the one proposed here is the multilayer perceptron (MLP), which is known to have the capability to solve nonlinear and complex problems. Several ANN-based techniques have been developed recently to estimate global horizontal radiation, but only ground-based meteorological measurements were used as inputs. The MLP ANN is proposed here given the complexity of the non-linear relationship between DNI and satellite measurements. Complex combination and interaction of several atmospheric parameters contribute to the total DNI attenuation and the contributions of each of these parameters are not usually measurable. Such parameters include air molecules, water vapor, water droplets, ozone, carbon dioxide and dust. An MLP ANN tool was designed to estimate the total optical depth of the atmosphere (?) which includes all the attenuating parameters. This is followed from the Beer-Bouguer-Lambert law: DNI = I0*?*exp(-?m) where I0 is the solar constant, ? is the sun-earth distance correction, and m is the air mass. ? values computed from ground-measured DNI values were used as truth data in training the ANN. The ground-measured DNI values were measured using a Rotating Shadow Band Pyranometer at 10-minute resolution. This instrument consists of a pyranometer which measures the global horizontal irradiance (GHI), a rotating shadow band making it possible to measure the diffuse horizontal irradiance (DHI) and from both the measured GHI and DHI the DNI is obtained. Seven temperature and reflectance channels measured by SEVIRI instrument on board of Meteosat Satellite were used as inputs: R01 (0.635 ?m); R02 (0.81 ?m); R03 (1.64 ?m); R04 (3.92 ?m); T04 (3.92 ?m); T09 (10.8 ?m); T10 (12.0 ?m). Satellite, solar and azimuth angles were used as additional inputs. ? derived from ground-based DNI measurements, was used as output. A total dataset of 8,344 DNI observations with corresponding satellite measurements were collected to train and validate the ANN. 80% of this data was used for training and the remaining 20% was kept to validate the final ANN. This data was collected over a period of 21 months between 2008 and 2010 in Al-Arad city, south east of the UAE. The preliminary results are promising. The validation set was used to assess the accuracy of the trained network. An RMSE of 15.9% was obtained in comparing the measured and simulated DNI values. We are in the process of compiling ground and satellite data for 3 additional stations to extend the training dataset. The use of the two water vapor channels of SEVIRI as additional inputs will be also evaluated.

  9. Satellite images and geodetic measurements applied to the monitoring of the Horcones Inferior Glacier, Mendoza, Argentina

    Scientific Electronic Library Online (English)

    M. Gabriela, Lenzano; Juan Carlos, Leiva; Darío, Trombotto; Luis, Lenzano.

    2011-06-01

    Full Text Available El presente trabajo realiza el monitoreo del glaciar Horcones Inferior, cubierto y regenerado a partir de la implementación de una estación GNSS semi-permanente (HISS), instalada sobre su superficie durante las temporadas de verano de 2009 y 2010 respectivamente. El glaciar se encuentra ubicado a lo [...] s 32° 41's y 69° 57'w, al pie de la pared sur del C° Aconcagua, en el Parque Provincial Aconcagua, Mendoza, Argentina. La estación HISS registró valores de velocidades medias de 1.3 cm/d y 3.5 cm/d durante las temporadas de 2009 y 2010. Se utilizaron imágenes satelitales para el seguimiento del frente del glaciar durante los últimos surges (1984 y 2003), cuyas velocidades medias fueron de 8.7 m/d para el primero y de 11.5 m/d para el segundo evento. Estos resultados permitieron obtener de manera precisa y confiable la tendencia de movimiento de la parte terminal del GHI durante el periodo 1984-2010. Abstract in english This work analyzes the monitoring of the covered and regenerated Horcones Inferior Glacier (HIG) since the implementation of a semi-permanent GNSS station (HISS) on its surface during the summer seasons of 2009 and 2010. The glacier is located at 32° 41's and 69° 57'w, at the foot of the south wall [...] of Mt. Aconcagua, Aconcagua Provincial Park, Mendoza, Argentina. The average velocities obtained from the HISS station were of 1.3 cm/d and 3.5 cm/d during the 2009 and 2010 seasons respectively. The data procured using satellite images during the last surges (1984 and 2003) gave average velocities for the HIG front of 8.7 m/d for the first event and 11.5 m/d for the second one. These results allowed getting accurate and reliable movement tendency at the terminal part of the HIG during the 1984-2010 period.

  10. Highly Segregated Lamello-Columnar Mesophase Organizations and Fast Charge Carrier Mobility in New Discotic Donor-Acceptor Triads.

    Science.gov (United States)

    Zhao, Ke-Qing; An, Ling-Ling; Zhang, Xiao-Bo; Yu, Wen-Hao; Hu, Ping; Wang, Bi-Qin; Xu, Jing; Zeng, Qing-Dao; Monobe, Hirosato; Shimizu, Yo; Heinrich, Benoît; Donnio, Bertrand

    2015-07-13

    Four new donor-acceptor triads (D-A-D) based on discotic and arylene mesogens have been synthesized by using Sonogashira coupling and cyclization reactions. This family of triads consists of two side-on pending triphenylene mesogens, acting as the electron-donating groups (D), laterally connected through short lipophilic spacers to a central perylenediimide (PI), benzo[ghi]perylenediimide (BI), or coronenediimide (CI) molecular unit, respectively, playing the role of the electron acceptor (A). All D-A-D triads self-organize to form a lamello-columnar oblique mesophase, with a highly segregated donor-acceptor (D-A) heterojunction organization, consequent to efficient molecular self-sorting. The structure consists in the regular alternation of two disrupted rows of triphenylene columns and a continuous row of diimine species. High-resolution STM images demonstrate that PI-TP2 forms stable 2D self-assembly nanostructures with some various degrees of regularity, whereas the other triads do not self-organize into ordered architectures. The electron-transport mobility of CI-TP2, measured by time-of-flight at 200?°C in the mesophase, is one order of magnitude higher than the hole mobility. By means of this specific molecular designing idea, we realized and demonstrated for the first time the so-called p-n heterojunction at the molecular level in which the electron-rich triphenylene columns act as the hole transient pathways, and the coronenediimide stacks form the electron-transport channels. PMID:26095600

  11. Determination of polycyclic aromatic hydrocarbons [PAHs] in processed meat products using gas chromatography - flame ionization detector.

    Science.gov (United States)

    Olatunji, Olatunde S; Fatoki, Olalekan S; Opeolu, Beatrice O; Ximba, Bhekumusa J

    2014-08-01

    The concentrations of polycyclic aromatic hydrocarbons (PAHs) in smoked, grilled and boiled meats were determined using gas chromatography - flame ionization detector (GC-FID). PAHs in the processed meats were extracted in n-hexane after hydrolysis with methanolic KOH. Clean-up was achieved using solid phase extraction in neutral-Si/basic-Si/acidic-Si/neutral-Si frits. The fractions, benzo[k]fluoranthene (BkP), benzo[a]pyrene (BaP), indeno[123-cd]pyrene (IP) and benzo[ghi]perylene (BghiP) were separated and quantified using GC-FID. The method and instrument limits of detections were 0.1, 0.1, 0.2, 0.3?g/kg and 0.5, 0.5, 1.0, 1.5?g/kg, respectively, for BkP, BaP, IP and BghiP. The method's recovery and precision generally varied between 83.69% and 94.25% with relative standard deviation (RSD) of 3.18-15.60%; and 90.38-96.71% with relative standard deviation (RSD) of 1.82-12.87% respectively. The concentration of BkP, BaP, IP and BghiP in smoked, grilled and boiled meat samples were ranged 0.64-31.54?g/kg, 0.07-7.04?g/kg, 0.09-15.03, 0.51-46.67?g/kg and 0.01-5.11?g/kg, respectively. PMID:24629971

  12. Genetic Mapping and Comparative Expression Analysis of Transcription Factors in Cotton

    Science.gov (United States)

    Chen, Xuemei; Jin, Xin; Li, Ximei; Lin, Zhongxu

    2015-01-01

    Transcription factors (TFs) play an important role in the regulation of plant growth and development. The study of the structure and function of TFs represents a research frontier in plant molecular biology. The findings of these studies will provide significant information regarding genetic improvement traits in crops. Currently, a large number of TFs have been cloned, and their function has been verified. However, relatively few studies that genetically map TFs in cotton are available. To genetically map TFs in cotton in this study, specific primers were designed for TF genes that were published in the Plant Transcription Factor Database. A total of 977 TF primers were obtained, and 31 TF polymorphic loci were mapped on 15 cotton chromosomes. These polymorphic loci were clearly preferentially distributed on chromosomes 5, 11, 19 and 20; and TFs from the same family mapped to homologous cotton chromosomes. In-silico mapping verified that many mapped TFs were mapped on their corresponding chromosomes or their homologous chromosomes’ corresponding chromosomes in the diploid genomes. QTL mapping for fiber quality revealed that TF-Ghi005602-2 mapped on Chr19 was associated with fiber length. Eighty-five TF genes were selected for RT-PCR analysis, and 4 TFs were selected for qRT-PCR analysis, revealing unique expression patterns across different stages of fiber development between the mapping parents. Our data offer an overview of the chromosomal distribution of TFs in cotton, and the comparative expression analysis between Gossypium hirsutum and G. barbadense provides a rough understanding of the regulation of TFs during cotton fiber development. PMID:25946129

  13. Solmap: Project In India's Solar Resource Assessment

    Directory of Open Access Journals (Sweden)

    Indradip Mitra

    2014-10-01

    Full Text Available India launched Jawaharlal Nehru National Solar Mission in 2009, which aims to set up 20 000 MW of grid connected solar power, besides 2 000 MW equivalent of off-grid applications and cumulative growth of solar thermal collector area to 20 million m2 by 2022. Availability of reliable and accurate solar radiation data is crucial to achieve the targets. As a result of this initiative, Ministry of New and Renewable Energy (MNRE of Government of India (GoI has awarded a project to Centre for Wind Energy Technology (C-WET, Chennai in the year 2011 to set up 51 Solar Radiation Resource Assessment (SRRA stations using the state-of-the-art equipment in various parts of the country, especially the sites with high potential for solar power. The GoI project has synergy with SolMap project, which is implemented by the Deutsche GesellschaftfürInternationaleZusammenarbeit (GIZ in cooperation with the MNRE. SolMap project is contributing to SRRA project in establishing quality checks on the data obtained as per International protocols and helping data processing to generate investment grade data. The paper highlights the details of SRRA stations and an attempt has been made to present some of the important results of quality control and data analysis with respect to GHI and DNI. While our analysis of the data over one year finds that intensity and profile of the insolation are not uniform across the geographic regions, the variability in DNI is particularly high. Strong influence of monsoon is also identified. SRRA infrastructure aims to develop investment grade solar radiation resource information to assist project activities under the National Solar Mission of India.

  14. Photochemistry of Polycyclic Aromatic Hydrocarbons in Cosmic Water Ice: The Role of PAH Ionization and Concentration

    Science.gov (United States)

    Cook, Amanda M.; Ricca, Alessandra; Mattioda, Andrew L.; Bouwman, Jordy; Roser, Joseph; Linnartz, Harold; Bregman, Jonathan; Allamandola, Louis J.

    2015-01-01

    Infrared spectroscopic studies of ultraviolet (UV) irradiated, water-rich, cosmic ice analogs containing small polycyclic aromatic hydrocarbons (PAHs) are described. The irradiation studies of anthracene:H2O, pyrene:H2O, and benzo[ghi]perylene:H2O ices (14 K) at various concentrations reported by Bouwman et al. are extended. While aromatic alcohols and ketones have been reported in residues after irradiated PAH:H2O ices were warmed to 270 K, it was not known if they formed during ice irradiation or during warm-up when reactants interact as H2O sublimes. Recent work has shown that they form in low temperature ice. Using DFT computed IR spectra to identify photoproducts and PAH cations, we tentatively identify the production of specific alcohols [PAH(OH) n ] and quinones [PAH(O) n ] for all PAH:H2O ices considered here. Little evidence is found for hydrogenation at 14 K, consistent with the findings of Gudipati & Yang. Addition of O and OH to the parent PAH is the dominant photochemical reaction, but PAH erosion to smaller PAHs (producing CO2 and H2CO) is also important. DFT spectra are used to assess the contribution of PAH-related species to interstellar absorption features from 5 to 9 ?m. The case is made that PAH cations are important contributors to the C2 component and PAH(OH) n and PAH(O) n to the C5 component described by Boogert et al. Thus, interstellar ices should contain neutral and ionized PAHs, alcohols, ketones and quinones at the ~2%-4% level relative to H2O. PAHs, their photoproducts, and ion-mediated processes should therefore be considered when modeling interstellar ice processes.

  15. Natural attenuation/phytoremediation in the vadose zone of a former industrial sludge basin.

    Science.gov (United States)

    Olson, P E; Flechter, J S; Philp, P R

    2001-01-01

    The natural attenuation of polyaromatic hydrocarbons (PAHs) in the vadose zone of a naturally revegetated former industrial sludge basin (0.45 ha) was examined. This was accomplished by comparing the concentration of 16 PAH contaminants present in sludge collected below the root zone of plants with contaminants present at 3 shallower depths within the root zone. Chemical analysis of 240 samples from 60 cores showed the average concentration of total and individual PAHs in the 0-30 cm, 30-60 cm, and bottom of the root zone strata were approximately 10, 20, and 50%, respectively, of the 16, 800 ppm average total PAH concentration in deep non-rooted sludge. Statistically significant differences in average PAH concentrations were observed between each strata studied and the non-rooted sludge except for the concentrations of acenaphthene and chrysene present at the bottom of the root zone in comparison to sludge values. The rooting depth of the vegetation growing in the basin was dependent on both vegetation type and plant age. Average rooting depths for trees, forbs (herbaceous non-grasses), and grasses were 90, 60, and 50 cm, respectively. The deepest root systems observed (100-120 cm) were associated with the oldest (12-14 year-old) mulberry trees. Examination of root systems and PAH concentrations at numerous locations and depths within the basin indicated that plant roots and their microbially active rhizospheres fostered PAH disappearance; including water insoluble, low volatility compounds, i.e. benzo(a)pyrene and benzo(ghi)perylene. The reduced concentration of PAHs in the upper strata of this revegetated former sludge basin indicated that natural attenuation had occurred. This observation supports the concept that through appropriate planting and management practices (phytoremediation) it will be possible to accelerate, maximize, and sustain natural processes, whereby even the most recalcitrant PAH contaminants (i.e. benzo(a)pyrene) can be remediated over time. PMID:11601360

  16. Composición corporal en escolares de primaria y su relación con el hábito nutricional y la práctica reglada de actividad deportiva / Body composition in elementary school and its relationship with nutritional habits and formal practice sports activity / Composição corporal em estudantes do ensino fundamental e sua relação com o hábito nutricional na prática regular de atividade física

    Scientific Electronic Library Online (English)

    F.J., Alonso; M.D., Carranza; J.D., Rueda; J., Naranjo.

    2014-12-01

    Full Text Available Objetivos: Apresentar as relações encontradas no primeiro ano do estudo longitudinal de 6 anos de duração entre a composição corporal, frequência de consumo de alimentos, nível de atividade física e prevalência de sobrepeso e obesidade em meninos e meninas de 6 anos. Método: O peso e a altura foram [...] medidos mensalmente, calculando o índice de massa corporal (IMC) e passou-se um questionário de frequência de consumo de alimentos mediante o teste Kidmed de adesão a dieta mediterrânea e o questionário PAQ-C de atividade física. A partir dos dados de IMC obtiveram-se os valores correspondentes da ação de regressão de Cole e os percentis segundo as tabelas do CDC de Atlanta e da Fundação Orbegozo. Semestralmente foram realizadas biopedância monofrequência (BIA), cineantropometria completa e medição do gasto energético durante 2 dias consecutivos com um calorímetro ArmBand. Resultados: Os principais achados desse primeiro ano foram os seguintes: os dados obtidos por BIA e por cineantropometria mostram uma boa correlação, os dados do questionário Kimed não mostram correlação com os dados antropométricos nem com o IMC, os dados do PAQ-C e da calorimetria mostram um maior nível de atividade em meninos que em meninas, inclusive depois de corrigido pela massa corporal. Conclusões: As diferenças entre os 3 critérios de obesidade são notórias, de forma que nossos dados globais de sobrepeso oscilam entre 29 e 44,9% para meninos e entre 20,3 e 32,4% para as meninas, segundo o critério utilizado. Abstract in spanish Objetivos: Presentar las relaciones encontradas en el primer año del estudio longitudinal de 6 años de duración entre la composición corporal, frecuencia de consumo de alimentos, nivel de actividad física y prevalencia de sobrepeso y obesidad en niños y niñas de 6 años. Método: Mensualmente se midió [...] el peso y la talla, se calculó el índice de masa corporal (IMC) y se pasó un cuestionario de frecuencia de consumo de alimentos mediante el test Kidmed de adherencia a la dieta mediterránea y el cuestionario PAQ-C de actividad física. A partir de los datos de IMC se obtuvieron los valores correspondientes a la ecuación de regresión de Cole y los percentiles según las tablas del CDC de Atlanta y de la Fundación Orbegozo. Semestralmente se realizó una bioimpedancia monofrecuencia (BIA), cineantropometría completa y medición del gasto energético durante 2 días consecutivos con un calorímetro ArmBand. Resultados: Los principales hallazgos de este primer año son los siguientes: los datos obtenidos por BIA y por cineantropometría muestran una buena correlación, los datos del cuestionario Kidmed no muestran correlación con los datos antropométricos ni con el IMC, los datos del PAQ-C y la calorimetría muestran un mayor nivel de actividad en niños que en niñas incluso al corregirlo por la masa corporal total. Conclusiones: Las diferencias entre los 3 criterios de diagnóstico de obesidad son patentes, de forma que nuestros datos globales de sobrepeso oscilarían entre el 29 y el 44,9% para los niños o entre el 20,3 y el 32,4% para las niñas, según el criterio utilizado. Abstract in english Objectives: To present the results of a longitudinal study of six years with a group of children throughout the primary stage of education based on the relationships between body composition, frequency of food consumption, level of physical activity and the prevalence of overweight and obesity in 6 [...] year-old children. Method: Monthly weight and height were measured, body mass index (BMI) was calculated and two questionnaires were administered: The Kidmed questionnaire of adherence to the Mediterranean diet for the frequency of food consumption, and the PAQ-C questionnaire for physical activity. Data corresponding to the regression equation of Cole and percentiles according to the tables of CDC Atlanta and the Foundation Orbegozo values were obtained from the BMI. Twice a year, a single frequency bioelectrical impedance (BIA) and a full kina

  17. Transglutaminaza naskórkowa umiejscawia si? w skórze w?a?ciwej poni?ej po??czenia skórno-naskórkowego jedynie u mniejszo?ci chorych na opryszczkowate zapalenie skóry

    Directory of Open Access Journals (Sweden)

    Monika Bowszyc-Dmochowska

    2006-06-01

    Full Text Available Opryszczkowate zapalenie skóry (dermatitis herpetiformis, DH jestautoimmunizacyjn? przewlek?? polimorficzn?dermatoz??wi?-dow?, zazwyczaj symetrycznie umiejscowion? w okolicach dra?nionych (1. Autoimmunizacja w DH ma byæ skierowana przeciwko enzymowi, transglutaminazie naskórkowej (epidermal transgluta-minase, TG3, a nie przeciwko bia?kom w przewa?aj?cej mierze strukturalnym i mediuj?cym przyleganie jak w innych autoimmuni-zacyjnych dermatozach p?cherzowych (2. Rol?transglutaminaz (3 jest katalizowanie posttranslacyjnego przekszta?cania bia?ek przez tworzenie wi?zania krzy?owego w obr?bie lub mi?dzy ?a?cuchami polipeptydowymi. Reakcja ta zachodzi pomi?dzy y-karboksyamidow? reszt? glutaminow? bia?ka, s?u??c? jako donor acylowy, i e-aminow? grup? lizynow? zwi?zan? z bia?kiem lubpoliamin?, s?u??c? jako akceptor acylowy, co prowadzi do powstania £-(y-glutamylolizynowego b?d?£-(y-glutamylopo-liaminowego wi?zania krzy?owego. Reszta cysteinowa zawarta w triadzie katalitycznej enzymu reaguje z substratem zawieraj?cym glutamin?, tworz?c acyl - enzymowy pó?produkt z uwolnieniem amoniaku. Dalej ten pó?produkt reaguje z amin? pierwotn? b?d? poliamin? posiadaj?c? reszt? lizynow?, formuj?c wi?zanie krzy?owe, natomiast enzym jest uwalniany. Wi?zania krzy?owe katalizowane przez transglutaminazy maj? istotne znaczenie fizjologiczne, gdy? s? odporne na czynniki mechaniczne i proteolityczne, co zapewnia stabilno?? budowanych struktur. Ekspresja TG3 na poziomie bia?ka ró?ni si? u ludzi i gryzoni, s? tak?e ró?nice w ekspresji we w?osie u p?odu i u doros?ego (ryc. 1. Ekspresja ludzkiej TG3 w prawid?owym anagenowym mieszku w?osowym u doros?ego ma miejsce we w?osie w?a?ciwym tkwi?cym w mieszku w?osowym (kora i pow?oczka oraz w pow?oczce pochewki wewn?trznej w?osa w dolnej cz??ci mieszka w?osowego, lecz nie w zewn?trznej pochewce w?osa (4. W prawid?owym ludzkim naskórku ekspresja TG3 wyst?puje na styku warstw ziarnistej i rogowej (5. Sugerowano, ?e w DH mo?na wykryæ TG3 w miejscach, gdzie umiejscawiaj? si? z?ogi IgA (TG3 wyst?puje razem ze z?ogami IgA, a wi?c w skórze w?a?ciwej poni?ej po??czenia skórno-naskórkowe-go (dermal-epidermal junction, DEJ (2. Celem niniejszych bada? by?o sprawdzenie jak cz?sto w skórze chorych na DH mo?na wykryæ TG3 umiejscawiaj?c? si? w skórze w?a?ciwej poni?ej DEJ. Zbadano 12 chorych na DH i 17 chorych z innymi autoimmuni-zacyjnymi i nieautoimmunizacyjnymi dermatozami p?cherzowymi, którzy tworzyli grup? kontroln?. U?yto mro?onych skrawków skóry z bezpo?redniego otoczenia wykwitu badanych technik? bezpo?redniej immunofluorescencji (direct immunofluorescence test, DIF (z?ogi IgA, IgA1 i ekspresja TG3 i metod? immunohistoche-miczn? (immunohistochemistry, ICH streptawidyna/peroksydaza LSAB + System HRP (Dako (ekspresja TG3. U?yto frakcji IgG króliczego przeciwcia?a przeciwko ludzkiej TG3 (dar dr. Soo-Youl Kima z Republiki Korei. U wszystkich chorych na DH uwidoczniono z?ogi IgA/IgA1 definiuj?ce t? dermatoz? (ryc. 2. Jednoznaczn? ekspresj? TG3 w skórze w?a?ciwej poni?ej DEJ stwierdzono metod? DIF i/lub ICH u jedynie 4 z 12 (33% chorych na DH (ryc. 3, 4 i u ?adnego chorego z grupy kontrolnej. Donoszono, ?e u chorych na DH TG3 umiejscawia si? wraz ze z?ogami IgA nie tylko w skórze w?a?ciwej poni?ej DEJ (móg?by to byæ wyk?adnik wcze?niejszego odk?adania si? kompleksów immunologicznych, ale równie? w naczyniach warstwy brodawkowatej (6 (móg?by to byæ wyk?adnik prób pó?niejszego usuwania kompleksów immunologicznych mediowanego zapaleniem, co by?oby spójne z teori? tworzenia si? w jelicie u chorych na DH w?a?nie kompleksów immunologicznych, dopiero w skórze w?a?ciwej inkor-poruj?cych TG3 przemieszczaj?c? si? tam z przewlekle dra?nionego naskórka, i co mog?oby sugerowaæ znacz?c? rol? takich, zawieraj?cych TG3, kompleksów w patogenezie DH jako wyzwalacza odpowiedzi z

  18. Avaliação da perda hídrica durante treino intenso de rugby Evaluación de la pérdida hídrica durante el entrenamiento en rugby Evaluation of water loss during high intensity rugby training

    Directory of Open Access Journals (Sweden)

    Marianna Marques Perrella

    2005-08-01

    Full Text Available O rugby é um esporte no qual os jogadores passam a maior parte do tempo em atividades aeróbicas, mas há momentos em que se envolvem em atividades anaeróbicas. De acordo com a percentagem de desidratação corporal em relação ao peso, os sintomas fisiológicos podem variar desde sede até insuficiência renal e circulatória. O estudo teve como objetivo verificar a taxa de sudorese de atletas femininas de rugby. Para tanto, as atletas foram pesadas e submetidas a teste BIA antes e após o treino. O percentual de gordura corporal diminuiu em média 0,6% e a redução em relação ao peso foi estatisticamente significativa de 1,5%. As sensações fisiológicas de sede descritas pelas atletas condizem com o grau de desidratação encontrado. Este não apresenta riscos à saúde desta população, porém é necessário conscientizá-las quanto à importância de uma hidratação adequada para a melhora do desempenho físico.El rugby es un deporte en el cual los jugadores pasan la mayor parte del tiempo en actividades aeróbicas, más así hay momentos en la que estos deportistas se envuelven en actividades anaeróbicas. De acuerdo con el porcentaje de deshidratación corporal en relacion al peso, los síntomas fisiológicos pueden variar desde la sed hasta la insuficiencia renal y circulatoria. Este estudio tuvo como objetivo verificar la tasa de sudor de atletas femeninas que practican el rugby. Para ello, las atletas fueron pesadas y sometidas al test BIA antes y despues del entrenamiento. El porcentaje de grasa disminuyó una media del 0,6% y la reducción en relación al peso fué estadisticamente significativa de 1,5%. Las sensaciones de sed descriptas por las atletas condicen con el grado de deshidratación encontrado. Este, no presenta riesgos al salud en esta población por lo que resulta necesario concientizarlas en cuanto a la importancia de una hidratación correcta para la mejora del desempeño físico.Rugby is a sport where players spend most of their time performing aerobic activities but there are some moments that they are involved in anaerobic activities. According to body dehydration percentage related with weight, physiological symptoms can vary from thirst to kidney and blood circulation insufficiency. The objective of this study was to verify the sweat rate of rugby female athletes. The athletes were weighted and submitted to a BIA test before and after training. The body fat percentage reduced 0.6% on average and the dehydration percentage related with weight reduced 1.5% on average. Physiological sensations of thirst described by the athletes agree with the dehydration degree found. It does not present risks to the athletes' health, but nevertheless, it is necessary that they get conscious about the importance of an adequate hydration for the improvement of the physical performance.

  19. Avaliação da perda hídrica durante treino intenso de rugby / Evaluation of water loss during high intensity rugby training / Evaluación de la pérdida hídrica durante el entrenamiento en rugby

    Scientific Electronic Library Online (English)

    Marianna Marques, Perrella; Patrícia Sayuri, Noriyuki; Luciana, Rossi.

    2005-08-01

    Full Text Available O rugby é um esporte no qual os jogadores passam a maior parte do tempo em atividades aeróbicas, mas há momentos em que se envolvem em atividades anaeróbicas. De acordo com a percentagem de desidratação corporal em relação ao peso, os sintomas fisiológicos podem variar desde sede até insuficiência r [...] enal e circulatória. O estudo teve como objetivo verificar a taxa de sudorese de atletas femininas de rugby. Para tanto, as atletas foram pesadas e submetidas a teste BIA antes e após o treino. O percentual de gordura corporal diminuiu em média 0,6% e a redução em relação ao peso foi estatisticamente significativa de 1,5%. As sensações fisiológicas de sede descritas pelas atletas condizem com o grau de desidratação encontrado. Este não apresenta riscos à saúde desta população, porém é necessário conscientizá-las quanto à importância de uma hidratação adequada para a melhora do desempenho físico. Abstract in spanish El rugby es un deporte en el cual los jugadores pasan la mayor parte del tiempo en actividades aeróbicas, más así hay momentos en la que estos deportistas se envuelven en actividades anaeróbicas. De acuerdo con el porcentaje de deshidratación corporal en relacion al peso, los síntomas fisiológicos p [...] ueden variar desde la sed hasta la insuficiencia renal y circulatoria. Este estudio tuvo como objetivo verificar la tasa de sudor de atletas femeninas que practican el rugby. Para ello, las atletas fueron pesadas y sometidas al test BIA antes y despues del entrenamiento. El porcentaje de grasa disminuyó una media del 0,6% y la reducción en relación al peso fué estadisticamente significativa de 1,5%. Las sensaciones de sed descriptas por las atletas condicen con el grado de deshidratación encontrado. Este, no presenta riesgos al salud en esta población por lo que resulta necesario concientizarlas en cuanto a la importancia de una hidratación correcta para la mejora del desempeño físico. Abstract in english Rugby is a sport where players spend most of their time performing aerobic activities but there are some moments that they are involved in anaerobic activities. According to body dehydration percentage related with weight, physiological symptoms can vary from thirst to kidney and blood circulation i [...] nsufficiency. The objective of this study was to verify the sweat rate of rugby female athletes. The athletes were weighted and submitted to a BIA test before and after training. The body fat percentage reduced 0.6% on average and the dehydration percentage related with weight reduced 1.5% on average. Physiological sensations of thirst described by the athletes agree with the dehydration degree found. It does not present risks to the athletes' health, but nevertheless, it is necessary that they get conscious about the importance of an adequate hydration for the improvement of the physical performance.

  20. Associação entre ângulo de fase, PRISM I e gravidade da sepse Association between phase angle, PRISM I and sepsis severity

    Directory of Open Access Journals (Sweden)

    Zina Maria Almeida de Azevedo

    2007-09-01

    Full Text Available JUSTIFICATIVA E OBJETIVOS: Ângulo de fase (AF é a diferença entre a voltagem e a corrente e pode ser usado como indicador de massa celular corporal. Estudos clínicos mostram que baixos AF estão associados com morbidade e mortalidade em pacientes críticos. O objetivo deste estudo foi conhecer a relação entre AF e o escore pediátrico de risco de mortalidade (PRISM I em pacientes pediátricos sépticos críticos, associando esse indicador c om a gravidade da sepse. MÉTODO: Estudo transversal realizado na Unidade de Terapia Intensiva (UTI Pediátrica do Instituto Fernandes Figueira. Os pacientes foram caracterizados de acordo com faixa etária, sexo, gravidade da sepse, etiologia da insuficiência respiratória, escore de PRISM I, grau de disfunção de múltiplos órgãos e sistemas (DMOS. A análise de bioimpedância elétrica (BIA foi realizada em todos os pacientes e, através da razão dos valores de reactância (Xc e resistência (R, foi calculado o AF (AF = arco-tangente da reactância/resistência x 180º /Pi. RESULTADOS: Foram avaliados 75 pacientes, sendo 68 (90,7% com sepse. A incidência de choque séptico foi 39,7%, sepse grave 42,6% e sepse 17,6%. Não houve diferença estatística significativa entre as médias de ângulo de fase e as categorias de PRISM I, porém observou-se uma relação inversa entre os valores de AF e as categorias de PRISM I, DMOS e tempo de internação. Os valores mais baixos de AF (1,5º-2,2º foram observados no maior escore de PRISM I (> 30 %. CONCLUSÕES: Os pacientes pediátricos críticos apresentaram baixos valores de angulo de fase, portanto deve ter a sua importância prognóstica estudada.BACKGROUND AND OBJECTIVES: Phase angle (PA is the difference between voltage and current and can be used as an indicator of body cell mass. Clinical studies show that low phase angle is associated with morbidity and mortality of critical patients. The purpose of this study was to know the relation between phase angle and the Pediatric Risk of Mortality I (PRISM I score, associating this score with the severity of sepsis. METHODS: A transversal study was performed at the Pediatric Intensive Care Unit (PICU in Instituto Fernandes Figueira. The patients were classified according to age, gender, sepsis severity, cause of respiratory failure, PRISM I score, multiple organ dysfunction syndromes (MODS. Electrical bioimpedance analysis (BIA was performed in all patients. Phase angle was calculated directly from reactance (Xc and resistance (R. AF = arc-tangent reactance/resistance x 180º/Pi. RESULTS: 75 patients (68 septic were evaluated. The incidence of septic shock was 39.7%, severe sepsis 42.6% and sepsis 17.6%. There was no significative statistical difference between the mean values of BIA and the categories of PRISM I, MODS, or the length of stay the PICU. The PA's lowest values (1.5º-2.2º were associated to the greatest PRISM's scores (> 30%. CONCLUSIONS: Pediatric critical patients show low phase angle values, which might have prognostic implication.

  1. SOBREPESO Y OBESIDAD EN PREADOLESCENTES MEXICANOS: ESTUDIO DESCRIPTIVO, VARIABLES CORRELACIONADAS Y DIRECTRICES DE PREVENCIÓN / OVERWEIGHT AND OBESITY IN MEXICAN PREADOLESCENTS: A DESCRIPTIVE STUDY, CORRELATED VARIABLES AND PREVENTION GUIDELINES / SOBREPESO E OBESIDADE EM PRÉ-ADOLESCENTES MEXICANOS: ESTUDO DESCRITIVO, VARIÁVEIS CORRELACIONADAS E DIRETRIZES DE PREVENÇÃO

    Scientific Electronic Library Online (English)

    PATRICIA, TRUJANO RUIZ; MANUEL, DE GRACIA BLANCO; CARLOS, NAVA QUIROZ; GILBERTO RAMIRO, LIMÓN ARCE.

    2014-06-01

    Full Text Available O sobrepeso e a obesidade representam sérios problemas de saúde pública. Realizou-se um estudo descritivo e correlacional de variáveis associadas ao sobrepeso e a obesidade em pré-adolescentes mexicanos escolarizados em México DF. Avaliou-se a Autoestima general (LAWSEQ, por suas siglas em inglês), [...] Autoestima corporal (BES, por suas siglas em inglês), Atitudes com respeito à alimentação (ChEAT, por suas siglas em inglês) e Imagem corporal (BIA, por suas siglas em inglês) e comparações por gênero e idade. A amostra foi de 600 alunos, meninos e meninas entre nove e doze anos. Encontrou-se uma baixa autoestima geral (mais baixa nas meninas e nos participantes de maior idade ) e corporal e uma boa atitude com relação à alimentação. Os participantes se perceberam e acreditaram ser vistos com sobrepeso e obesidade, mas a futuro e idealmente desejaram figuras mais magras. Propõe-se que os programas de prevenção contemplem educação para a saúde, atividade física, controle de aspectos genéticos, atitudes funcionais (tendentes a uma boa autoestima e atitudes positivas com respeito à comida saudável), e envolvimento da família e do entorno social. Abstract in spanish El sobrepeso y la obesidad representan serios problemas de salud pública. Se realizó un estudio descriptivo y correlacional de variables asociadas al sobrepeso y la obesidad en preadolescentes mexicanos escolarizados en México DF. Se valoró la Autoestima general (LAWSEQ, por sus siglas en inglés), A [...] utoestima corporal (BES, por sus siglas en inglés), Actitudes hacia la alimentación (ChEAT, por sus siglas en iglés) e Imagen corporal (BIA, por sus siglas en inglés) y comparaciones por género y edad. La muestra fue de 600 alumnos, niños y niñas de entre nueve y doce años. Se encontró una baja autoestima general (más baja en las niñas y en los participantes de mayor edad) y corporal y una buena actitud hacia la alimentación. Los participantes se percibieron y creyeron ser vistos con sobrepeso y obesidad, pero a futuro e idealmente desearon figuras más delgadas. Se propone que los programas de prevención contemplen educación para la salud, actividad física, control de aspectos genéticos, actitudes funcionales (tendientes a una buena autoestima y actitudes positivas hacia la comida sana), e involucramiento de la familia y el entorno social. Abstract in english Overweight and obesity are serious public health problems. A descriptive and correlational study of variables associated with overweight and obesity of Mexican school preadolescents in Mexico DF was performed. General self-esteem (LAWSEQ, for its English acronym), body esteem (BES, for its English a [...] cronym), Attitudes towards food (ChEAT, for its English acronym) and body image (BIA, for its English acronym) were assessed and comparisons by gender and age were drawn. The sample was formed by 600 students, boys and girls aged between nine and twelve. A general low self-esteem and body esteem (lower in girls and in older participants) as well as a good attitude toward eating were found. Participants perceived themselves and believed they were seen as overweight and obese but ideally they wanted thinner figures in the future. Prevention programs are proposed to include health education, physical activity, genetic control, functional attitudes (geared toward generating good self-esteem and positive attitudes toward healthy eating), as well as involvement of the family and social environment.

  2. Phase angle as a nutritional evaluation tool in all stages of chronic liver disease / Ángulo de fase como una herramienta para evaluar el estado nutricional en todas las etapas de la enfermedad hepática crónica

    Scientific Electronic Library Online (English)

    W. A. F., Peres; D. F., Lento; K., Baluz; A., Ramalho.

    2072-20-01

    Full Text Available Introducción: La malnutrición es común y frecuentemente subdiagnosticada en el ámbito clínico en pacientes con enfermedad hepática crónica (EPC), ya que las limitaciones de los métodos de evaluación nutricional en esta población. La hipótesis de que el análisis de impedancia bioeléctrica derivada de [...] l ángulo de fase (AF) puede ser considerado como un indicador nutricional en la EPC, ya que representa tanto la muerte celular o la desnutrición se caracteriza por los cambios en la integridad de la membrana celular. Objetivos: El objetivo de este estudio fue evaluar la AF como un instrumento de evaluación nutricional en todas las etapas de la EPC, incluyendo hepatitis crónica, cirrosis hepática y carcinoma hepatocelular (CHC). Métodos: Se evaluó la muerte relacionada con el hígado y la supervivencia. Un total de 66 pacientes fueron incluidos en un estudio de corte transversal. Para el diagnóstico nutricional, circunferencia del brazo (CB), el pliegue del tríceps (PT), circunferencia del brazo muscular (CBM) y la valoración global subjetiva (VGS) fueron evaluados. Evaluaciones bioquímicas y clínicas se llevaron a cabo. Resultados: Nuestros resultados mostraron que la AF fue mayor en los pacientes bien nutridos, de acuerdo con VGS y en los pacientes sin encefalopatía hepática. El AF se correlacionó significativamente con la CBM, CB y la albúmina y se correlaciona inversamente con la edad. No se encontró correlación entre los valores de la AF y la puntuación de Child-Pugh y la ascitis. La AF está fuertemente asociada con la supervivencia y la AF ? 5,18 º con el aumento de riesgo relativo de 2,5 para la muerte. Conclusiones: Llegamos a la conclusión de que la AF es una herramienta relevante la evaluación nutricional en la hepatitis crónica, cirrosis hepática y carcinoma hepatocelular y el papel de la AF en la predicción de la supervivencia de la EPC debe seguir siendo examinado en estudios controlados. Abstract in english Introduction: Malnutrition is commonly and frequently under-diagnosed in clinical settings in patients with chronic liver disease (CLD) due to the limitations of nutritional evaluation methods in this population. We hypothesized that the bioelectrical impedance analysis derived phase angle (BIA-deri [...] ved PhA) might be considered as a nutritional indicator in CLD since it represents either cell death or malnutrition characterized by changes in cellular membrane integrity. Objective: The aim of this study was to evaluate the BIA-derived PhA as a nutritional evaluation tool in all stages of CLD, including chronic hepatitis, liver cirrhosis and hepatocellular carcinoma (HCC). Liver-related death and survival were evaluated. Methods: A total of 66 patients were enrolled in a cross-sectional study. For the nutritional diagnosis, mid-arm circumference (MAC), triceps skinfold thickness (TST), mid-arm muscle circumference (MAMC) and Subject Global Assessment (SGA) were evaluated. Biochemical and clinical evaluations were performed. Results: Our results showed that PhA was higher in well-nourished patients, according to SGA and in the patients without hepatic encephalopathy. PhA correlated significantly with MAMC, MAC and albumin and was inversely correlated with age. No correlation was found between PhA values and the Child-Pugh score and ascites. PhA was strongly associated with survival and PhA ? 5.18º with relative risk increase of 2.5 for death. Conclusions: We conclude that the BIA-derived PhA is a relevant nutritional evaluation tool in chronic hepatitis, liver cirrhosis and HCC and the role of PhA in the prediction of survival in CLD should be examined further in a controlled study.

  3. Valores del ángulo de fase por bioimpedancia eléctrica: estado nutricional y valor pronóstico / Values of the phase angle by bioelectrical impedance: nutritional status and prognostic value

    Scientific Electronic Library Online (English)

    L., Llames; V., Baldomero; M. L., Iglesias; L. P., Rodota.

    2013-04-01

    Full Text Available El ángulo de fase (AF) es el parámetro de la bioimpedancia (BIA) mayormente establecido para el diagnóstico de la desnutrición y el pronóstico clínico, ambos asociados con cambios en la integridad de la membrana celular y las alteraciones en el balance de líquido. El AF expresa cambios en la cantida [...] d y la calidad de la masa de los tejidos blandos (es decir, permeabilidad de la membrana celular e hidratación). Una gran cantidad de ensayos clínicos proponen el AF como un marcador pronóstico útil en condiciones clínicas, como en cirrosis hepática, en cáncer de mama, colon, páncreas, pulmón, también se observó en pacientes con VIH-positivos, y quirúrgicos una asociación positiva entre el AF y la supervivencia. Varios autores sugieren que el AF puede ser una herramienta importante para evaluar el resultado clínico o para evaluar la progresión de la enfermedad y este puede ser superior a otros indicadores nutricionales, bioquímicos o antropométricos. La falta de valores de referencia ha limitado su uso en situaciones clínicas y epidemiológicas. El objetivo de esta revisión es describir los valores de referencia de ángulo de fase según diferentes condiciones clínicas propuestos en los trabajos científicos publicados. Abstract in english Phase angle (PA) is the most established parameter from bioelectrical impedance analysis (BIA) for diagnosis of malnutrition and clinical prognosis, both associated with changes on cellular membrane integrity and alterations on fluids balance. PA expresses changes in quantity and quality of soft tis [...] sue mass (ie, cell membrane permeability and soft tissue hydration). A large body of clinical trials propose PA as a useful prognostic marker in clinical conditions like liver cirrhosis and breast, colon, pancreatic and lung cancer; positive association between PA and survival was also observed in surgical and HIV infected patients. Several authors suggest that PA can be an important tool in the evaluation of the clinical result or of the progression of the disease, and it can even be superior to other nutritional, biochemical or anthropometric indicators. Lack of reference values has limited its use in clinical and epidemiological situations. The purpose of this review is to describe PA reference values according to different clinical conditions as proposed in published scientific works.

  4. The Transeurope Footrace Project: longitudinal data acquisition in a cluster randomized mobile MRI observational cohort study on 44 endurance runners at a 64-stage 4,486km transcontinental ultramarathon

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    Schütz Uwe HW

    2012-07-01

    Full Text Available Abstract Background The TransEurope FootRace 2009 (TEFR09 was one of the longest transcontinental ultramarathons with an extreme endurance physical load of running nearly 4,500 km in 64 days. The aim of this study was to assess the wide spectrum of adaptive responses in humans regarding the different tissues, organs and functional systems being exposed to such chronic physical endurance load with limited time for regeneration and resulting negative energy balance. A detailed description of the TEFR project and its implemented measuring methods in relation to the hypotheses are presented. Methods The most important research tool was a 1.5 Tesla magnetic resonance imaging (MRI scanner mounted on a mobile unit following the ultra runners from stage to stage each day. Forty-four study volunteers (67% of the participants were cluster randomized into two groups for MRI measurements (22 subjects each according to the project protocol with its different research modules: musculoskeletal system, brain and pain perception, cardiovascular system, body composition, and oxidative stress and inflammation. Complementary to the diverse daily mobile MR-measurements on different topics (muscle and joint MRI, T2*-mapping of cartilage, MR-spectroscopy of muscles, functional MRI of the brain, cardiac and vascular cine MRI, whole body MRI other methods were also used: ice-water pain test, psychometric questionnaires, bioelectrical impedance analysis (BIA, skinfold thickness and limb circumference measurements, daily urine samples, periodic blood samples and electrocardiograms (ECG. Results Thirty volunteers (68% reached the finish line at North Cape. The mean total race speed was 8.35 km/hour. Finishers invested 552 hours in total. The completion rate for planned MRI investigations was more than 95%: 741 MR-examinations with 2,637 MRI sequences (more than 200,000 picture data, 5,720 urine samples, 244 blood samples, 205 ECG, 1,018 BIA, 539 anthropological measurements and 150 psychological questionnaires. Conclusions This study demonstrates the feasibility of conducting a trial based centrally on mobile MR-measurements which were performed during ten weeks while crossing an entire continent. This article is the reference for contemporary result reports on the different scientific topics of the TEFR project, which may reveal additional new knowledge on the physiological and pathological processes of the functional systems on the organ, cellular and sub-cellular level at the limits of stress and strain of the human body. Please see related articles: http://www.biomedcentral.com/1741-7015/10/76 and http://www.biomedcentral.com/1741-7015/10/77

  5. Inequity in Hospitalization Care: A Study on Utilization of Healthcare Services in West Bengal, India

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    Montu Bose

    2015-01-01

    Full Text Available Background Out of eight commonly agreed Millennium Development Goals (MDG, six are related to the attainment of Universal Health Coverage (UHC throughout the globe. This universalization of health status suggests policies to narrow the gap in access and benefit sharing between different socially and economically underprivileged classes with that of the better placed ones and a consequent expansion of subsidized healthcare appears to be a common feature for most of the developing nations. The National Health Policy in India (2002 suggests expansion of market-based care for the affording class and subsidized care for the deserving class of the society. So, the benefit distribution of this limited public support in health sector is important to examine to study the welfare consequences of the policy. This paper examines the nature of utilizationto inpatient care by different socio-economic groups across regions and gender in West Bengal (WB, India. The benefit incidence of public subsidies across these socio-economic groups has also been verified for different types of services like medicines, diagnostics and professional care etc. Methods National Sample Survey Organization (NSSO has collected information on all hospitalized cases (60th round, 2004 with a recall period of 365 days from the sampled households through stratified random sampling technique. The data has been used to assess utilization of healthcare services during hospitalization and the distribution of public subsidies among the patients of different socio-economic background; a Benefit Incidence Analysis (BIA has also been carried out. Results Analysis shows that though the rate of utilization of public hospitals is quite high, other complementary services like medicine, doctor and diagnostic tests are mostly purchased from private market. This leads to high Out-of-Pocket (OOP expenditure. Moreover, BIA reveals that the public subsidies are mostly enjoyed by the relatively better placed patients, both socially and economically. The worse situation is observed for gender related inequality in access and benefit from public subsidies in the state. Conclusion Focused policies are required to ensure proper distribution of public subsidies to arrest high OOP expenditure. Drastic change in policy targeting is needed to secure equity without compromising efficiency.

  6. Loss of heterozygosity by mitotic recombination in diploid strain of Aspergillus nidulans in response to castor oil plant detergent / Perda da heterozigose por meio da recombinação mitótica em linhagem diplóide de Aspergillus nidulans em resposta ao detergente derivado do óleo da mamona

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    S. A., Souza-Júnior; E. A. L., Gonçalves; S. A., Catanzaro-Guimarães; M. A. A., Castro-Prado.

    2004-11-01

    Full Text Available A recombinação somática em células diplóides heterozigotas pode atuar como agente promotor de neoplasias por induzir homozigose de genes deletéreos. Por meio desse processo, genes supressores de tumores podem ser completamente suprimidos em células recombinantes. O presente trabalho avaliou a genoto [...] xicidade do detergente derivado do óleo da semente da mamona (Ricinus communis) em células diplóides heterozigotas do fungo filamentoso Aspergillus nidulans. Trabalhos anteriores avaliaram a aplicação dessa solução no tratamento de canais radiculares como líquido irrigador. O potencial recombinagênico desse composto foi estudado pela origem de células homozigotas para os marcadores nutricionais: riboA1, pabaA124, biA1, metA17 e piroA4. A solução, diluída em 1:40, 1:20 e 1:10, induziu alterações morfológicas e atraso no desenvolvimento dos conidióforos da linhagem UT448//UT196 e aumento nas freqüências de recombinação mitótica. Embora trabalhos anteriores relatem a atividade antimicrobiana da solução em estudo, nossos resultados evidenciam a citotoxicidade e o potencial recombinagênico dessa substância. Abstract in english Somatic recombination in heterozygous diploid cells may be a promotional agent of neoplasms by inducing homozygosity of defective genes. Tumor suppressor genes may in this way be completely suppressed in recombinant cells. In this work, the genotoxic effects of detergent derived from the castor oil [...] plant (Ricinus communis) in heterozygous diploid cells of Aspergillus nidulans are evaluated. Previous studies have evaluated the application of this substance in endodontic treatments as an irrigating solution. The recombinogenic potential of the compound has been studied through the production of homozygous cells for nutritional markers riboA1, pabaA124, biA1, methA17, and pyroA4. Detergent was diluted to 1:10, 1:20, and 1:40, and morphologic alterations, delay in conidiophore development, and mitotic recombination occurrence were reported for the three dilutions. Although past studies have demonstrated the antimicrobial action of the detergent under analysis, our results revealed its cytotoxic effects and recombinogenic potential.

  7. ANTHROPOMETRY AND BIOELECTRICAL IMPEDANCE ANALYSIS COMPARED TO DUAL-PHOTON ABSORPTIOMETRY FOR THE ASSESSMENT OF BODY COMPOSITION OF HIV-SEROPOSITIVE PATIENTS / ANTROPOMETRÍA Y ANÁLISIS DE IMPEDANCIA BIOELÉCTRICA COMPARADO CON ABSORCIOMETRÍA FOTÓNICA DUAL PARA LA EVALUACIÓN DE LA COMPOSICIÓN CORPORAL EN PACIENTES INFECTADOS POR VIH

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    Rebeca, Antunes Beraldo; Helena, Siqueira Vassimon; Alceu Afonso, Jordão J; Francisco José, de Albuquerque; Alcyone, Marchioli Machado; Maria Cristina, Foss de Freitas; Anderson, Marliere Navarro.

    2011-12-01

    Full Text Available Introducción: Se ha descrito cambios en la composición corporal de pacientes infectados por VIH, tales como la lipoatrofia en ciertas regiones del cuerpo y lipohipertrofia en otros, en representación de las características del síndrome de lipodistrofia. Es importante controlar la cantidad de grasa c [...] orporal por segmento utilizando métodos prácticos y de bajo costo con el fin de optimizar el tratamiento de este grupo. Objetivos: correlacionar la composición corporal por segmento corporal obtenidos por las mediciones antropométricas y por impedancia bioeléctrica com DXA segmentaria en pacientes seropositivos al VIH en tratamiento antir-retroviral. Métodos: Se midieron las circunferencias de brazo, cintura, cadera, muslo y pantorrilla y los pliegues cutáneos: bíceps, tríceps, subescapular, suprailíaco) y se realizaron impedancia bioeléctrica segmentaria (BIA) el análisis y DXA. La prueba de Pearson se utilizó para determinar las correlaciones y la prueba de San Lorenzo se utilizó para evaluar la concordancia entre las variables. Resultados: Se evaluaron 26 pacientes, 35% de los cuales tenían sobrepeso. El pliegue del tríceps (PT), circunferencia de la cintura (CC) y la circunferencia del muslo (CM) se correlacionaron significativamente con la medida obtenida por el patrón de oro (p Abstract in english Introduction: HIV-seropositive patients have shown changes in body composition such as lipoatrophy in certain regions of the body and lipohypertrophy in others, representing characteristics of lipodystrophy syndrome. It is important to monitor the quantity of fat per body segment using practical and [...] low-cost methods in order to optimize the treatment of this group. Objectives: To correlate the body composition per body segment obtained by anthropometric measurements and by segmental bioelectrical impedance with DXA in HIV-seropositive patients on antiretroviral treatment Methods: We measured circumferences (arm, waist, hip, thigh and calf) and skinfolds (biceps, triceps, subscapular, suprailiac) and performed segmental bioelectrical impedance (BIA) analysis and DXA. The Pearson test was used to determine correlations and the St. Laurent test was used to assess concordance between variables. Results: We evaluated 26 patients, 35% of whom were overweight. The triceps skinfold (TSF), waist circumference (WC) and thigh circumference (TC) were significantly correlated with the measurement obtained by the gold standard (p

  8. Nutritional assessment in patients with cirrhosis Avaliação nutricional de pacientes cirróticos

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    Sabrina Alves Fernandes

    2012-03-01

    Full Text Available CONTEXT: Malnutrition in cirrhotic patients with end-stage disease is common, and the degree of nutritional debilitation can play an important role in the pathogenesis of complications and cause a negative impact on prognosis. However, it involves difficulties and controversies regarding the identification of the best nutritional assessment method. OBJECTIVE: To identify a method that provides a safe and effective nutritional diagnosis. METHODS: Cross-sectional study with 129 cirrhotic patients. Anthropometric measurements, subjective global assessment, hand grip strength and bioelectrical impedance. RESULTS: Through phase angle of bioelectrical impedance analysis (BIA method, significant associations with Child-Pugh (P = 0.008, age group and gender were observed. The ROC (receiver operator characteristic curve was generated to determine the best cutoff point of the phase angle of cirrhotic patients, serving as one of the reference parameters for the nutritional assessment with bioimpedance in this study, considering the classification through Child-Pugh score as the reference standard for the clinical conditions of patients with cirrhosis. CONCLUSIONS: The assessment through bioelectrical impedance presented a statistically significant correlation with Child-Pugh score. The identification of phase angle of 5.44º is the new parameter suggested for the classification of the nutritional conditions of cirrhotic patients.CONTEXTO: A desnutrição em pacientes cirróticos com doença em estágio final é comum, e o grau de debilitação nutricional pode desempenhar papel importante na patogênese de complicações e causar impacto negativo no prognóstico. No entanto, envolve dificuldades e controvérsias sobre a identificação do melhor método de avaliação nutricional. OBJETIVO: Identificar um método que ofereça diagnóstico nutricional seguro e eficiente. MÉTODOS: Estudo transversal avaliou 129 pacientes com cirrose hepática. Foram realizadas medidas antropométricas, avaliação subjetiva global, dinamometria e bioimpedância elétrica. RESULTADOS: Através do ângulo de fase do método BIA, associações significativas com Child-Pugh (P = 0,008, faixa etária e sexo foram observadas. A curva ROC (receiver operator characteristic foi realizada para determinar o melhor ponto de corte do ângulo de fase de pacientes cirróticos, servindo como um dos parâmetros de referência para a avaliação nutricional com bioimpedância neste estudo, considerando a classificação por pontuação Child-Pugh como o padrão de referência para as condições clínicas dos pacientes com cirrose. CONCLUSÕES: A avaliação por meio de bioimpedância elétrica apresentou correlação estatisticamente significativa com o escore de Child-Pugh. A identificação do ângulo de fase de 5,44º é o novo parâmetro sugerido para a classificação do estado nutricional de pacientes cirróticos.

  9. Identificação do potencial amilolítico de linhagens mutantes do fungo filamentoso Aspergillus nidulans / Identification of the amylolytic potential of mutant strains of the filamentous fungi Aspergillus nidulans

    Scientific Electronic Library Online (English)

    Izabel Aparecida, Soares; Andressa Caroline, Flores; Luana, Zanettin; Heloana Karoline, Pin; Marcos Marques, Mendonça; Rodrigo Patera, Barcelos; Luciane Regina, Trevisol; Rosimere Domingos, Carvalho; Dionéia, Schauren; Carmem Lucia de Mello Sartori Cardoso da, Rocha; Suzymeire, Baroni.

    2010-09-01

    Full Text Available As amilases estão entre as mais importantes enzimas industriais, apresentando grande importância biotecnológica, principalmente na indústria alimentícia. Com o avanço no conhecimento das enzimas, a utilização dos fungos como fonte de enzimas vem adquirindo um status de destaque nas mais variadas áre [...] as industriais e comerciais. Diante disso, o presente estudo procurou identificar a presença de atividade amilolítica em quatro linhagens do fungo filamentoso Aspergillus nidulans, selvagem, PAT, biA1methG1 e CLB3, utilizando dois meios distintos de cultura, BDA e Meio Completo a 2% amido, variando os tratamentos com adição ou não de glicose. Foram determinados o diâmetro médio da colônia, o diâmetro médio do halo e o Índice Enzimático. Como resultados, todas as linhagens testadas foram capazes de degradar o amido quando na ausência de glicose, porém o tratamento que obteve estatisticamente melhor crescimento e maior degradação do amido foi o MC sem glicose a 2% amido e a linhagem que se demonstrou potencialmente degradadora de amido foi o mutante CLB3. Conclui-se, portanto, que Aspergillus nidulans pode ser considerado como um produtor de amilases. Abstract in english The amylases are among the most important industrial enzymes showing great biotechnological importance, mainly in the food industry. Due to the advance knowledge in enzyme research, the use of fungi as source of enzymes has acquired a prominent status in most varied industrial and commercial areas. [...] Thus, the present study tried to identify the presence of the amylolytic activity in four stains of filamentous fungi Aspergillus nidulans, selvagem, PAT, biA1methG1 and CLB3 by using two different culture means, PDA and Complete mean with 2% starch, varying the treatments with and without the addition of glucose. The colony average diameter, the halo average diameter, and the enzymatic index were determined. The results show that all strains tested were capable of degrading starch in the absence of glucose although the treatment that presented statistically better growing and bigger degradation of starch was CM without glucose with 2% starch and the strain that demonstrated potentially degradation was CLB3 mutant. It was concluded that Aspergillus nidulans can be considered as an enzyme producer.

  10. Metabolismo de repouso de mulheres pós-menopausadas submetidas a programa de treinamento com pesos (hipertrofia Resting metabolism of post-menopause women submitted to a training program with weights (hypertrophy

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    Mara Cléia Trevisan

    2007-04-01

    Full Text Available O estudo objetivou avaliar o gasto energético de repouso (GER de mulheres pós-menopausadas submetidas a programa de treinamento com pesos. Foram estudadas 30 mulheres (FSH > 40mIU/mL entre 45 e 70 anos, separadas em dois grupos (GT: treinamento, n = 15 e GC: controle, n = 15. Calculou-se o índice de massa corporal (kg/m² e por meio da impedância bioelétrica (BIA determinaram-se o percentual de gordura corporal e a massa muscular. O GER foi obtido por meio da calorimetria indireta (O2 e CO2 respiratórios e calculado pela equação de Weir. A mensuração ocorreu após 12 horas de jejum, durante 30 minutos sob temperatura e umidade controladas. O GT participou do programa de treinamento com pesos durante 16 semanas, na freqüência de três vezes por semana. Os dados analisados pelos testes t de Student, Mann-Whitney e ANOVA (p The study had as objective to evaluate the resting energy expenditure (REE of post-menopause women submitted to a training program with weights. Thirty women, age between 45 and 70 years (FSH > 40 mIUmL, separated in two groups (TG: training n = 15 and CG: control n = 15 were studied. The body mass index (kg/m² was calculated and the body fat percentage and the muscular mass were determined through bioelectric impedance (BIA. The REE was obtained through indirect calorimetry (respiratory O2 and CO2 and calculated by the Weir equation. The measurement occurred after 12 hours of fasting, during 30 minutes under controlled temperature and humidity. The TG participated of the training program with weights during 16 weeks, in the frequency of three times per week. The analyzed data by the t-Student, Mann-Whitney and ANOVA tests (p < 0.05 demonstrated that the TG had body mass increased in the 1.8 kg mean, muscular mass in 2.0 kg and the REE presented increase of 8.4% in relation to the CG. In conclusion, the training with weights increased muscular mass and REE. Therefore, this kind of exercise is recommended part of strategy to revert muscular and metabolic losses derived from aging and/or menopause.

  11. Obesity, body composition, and prostate cancer

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    Fowke Jay H

    2012-01-01

    Full Text Available Abstract Background Established risk factors for prostate cancer have not translated to effective prevention or adjuvant care strategies. Several epidemiologic studies suggest greater body adiposity may be a modifiable risk factor for high-grade (Gleason 7, Gleason 8-10 prostate cancer and prostate cancer mortality. However, BMI only approximates body adiposity, and may be confounded by centralized fat deposition or lean body mass in older men. Our objective was to use bioelectric impedance analysis (BIA to measure body composition and determine the association between prostate cancer and total body fat mass (FM fat-free mass (FFM, and percent body fat (%BF, and which body composition measure mediated the association between BMI or waist circumference (WC with prostate cancer. Methods The study used a multi-centered recruitment protocol targeting men scheduled for prostate biopsy. Men without prostate cancer at biopsy served as controls (n = 1057. Prostate cancer cases were classified as having Gleason 6 (n = 402, Gleason 7 (n = 272, or Gleason 8-10 (n = 135 cancer. BIA and body size measures were ascertained by trained staff prior to diagnosis, and clinical and comorbidity status were determined by chart review. Analyses utilized multivariable linear and logistic regression. Results Body size and composition measures were not significantly associated with low-grade (Gleason 6 prostate cancer. In contrast, BMI, WC, FM, and FFM were associated with an increased risk of Gleason 7 and Gleason 8-10 prostate cancer. Furthermore, BMI and WC were no longer associated with Gleason 8-10 (ORBMI = 1.039 (1.000, 1.081, ORWC = 1.016 (0.999, 1.033, continuous scales with control for total body FFM (ORBMI = 0.998 (0.946, 1.052, ORWC = 0.995 (0.974, 1.017. Furthermore, increasing FFM remained significantly associated with Gleason 7 (ORFFM = 1.030 (1.008, 1.052 and Gleason 8-10 (ORFFM = 1.044 (1.014, 1.074 after controlling for FM. Conclusions Our results suggest that associations between BMI and WC with high-grade prostate cancer are mediated through the measurement of total body FFM. It is unlikely that FFM causes prostate cancer, but instead provides a marker of testosterone or IGF1 activities involved with retaining lean mass as men age.

  12. Rola kwasu dokozaheksaenowego w czynno?ci komórek nerwowych

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    Anna Walczewska

    2011-01-01

    Full Text Available Fosfolipidy neuronów, zw?aszcza kory mózgu, zawieraj? du?? ilo?? wielonienasyconego kwasu dokozaheksaenowego (DHA, C22: 6n-3. Podstawowym ?ród?em tego kwasu dla komórek nerwowych jest pokarm oraz synteza DHA w w?trobie i astrocytach z niezb?dnego kwasu ?-linolowego (C18: 3n-3. Najwi?kszy przyrost DHA w mózgu obserwuje si? w okresie ?ycia p?odowego i przez pierwsze dwa lata ?ycia dziecka. Odpowiednia ilo?? DHA w fosfolipidach b?onowych determinuje wiele czynno?ci komórek nerwowych i tym mo?na t?umaczy? wyra?n? ochron? DHA w mózgu podczas deficytu kwasu ?-linolowego w po?ywieniu. Fosfolipidy z acylem DHA s? w b?onach mobilne, a b?ony plazmatyczne zbudowane z takich fosfolipidów s? cie?sze, bardziej przepuszczalne dla jonów i ma?ych cz?steczek oraz maj? lu?niejsz? struktur?. Te wszystkie cechy b?on zwi?kszaj? ich „dynamik?” w porównaniu z b?onami zbudowanymi z innych fosfolipidów. Ponadto tworz? ?rodowisko dla skondensowanych w b?onach neuronalnych bia?ek receptorowych, kana?owych i peryferyjnych. Od dost?pno?ci DHA dla neuronów zale?y ilo?? fosfatydyloseryny w wewn?trznej warstwie lipidów b?onowych, dzi?ki której zwi?ksza si? prze?ywalno?? neuronów w wyniku translokacji/aktywacji kinaz Akt i Raf-1/MEK. Obecno?? DHA w fosfolipidach b?onowych u?atwia tworzenie si? kompleksu bia?ek v-SNARE/t-SNARE niezb?dnego w procesie egzocytozy p?cherzyków synaptycznych i rozrastania si? b?on wypustek neuronalnych, co determinuje ich plastyczno??. DHA odgrywa istotn? rol? neuroprotekcyjn?. Stwierdzono hamowanie syntezy PGE2 oraz ekspresji COX-1 w astrocytach hodowanych w obecno?ci DHA, a oksygenazowe metabolity DHA, szczególnie neuroprotektyny D, mog? t?umi? reakcje zapalne i zapobiega? uszkodzeniom lub apoptozie neuronów. Skutki obecno?ci DHA w b?onach komórek nerwowych i powstaj?cych z niego metabolitów, a tak?e funkcje zale?nej od DHA fosfatydyloseryny mog? wyja?nia? korzystne dzia?anie suplementacji DHA w poprawie czynno?ci mózgu i w chorobach neurodegeneracyjnych.

  13. ??????????????? ???????? ??????????-????????? ??????????

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    ???? [IUliia] ??????? [Gurskaia

    2014-12-01

    Full Text Available Deantroponymic names in the Belarusian-Polish frontierThe article analyzes deantroponymic toponyms of Grodno land, recorded in written materials of 15th – 17th centuries in comparison with current data. The origin, structure and evolution of the areal features of Slavic and Baltic names are investigated to conform the language, cultural and historical features of the region.From the historical and etymological point of view different time strata can be allocated. An extensive group was formed by oikonyms of the Baltic and Slavic origin, derived from personal names and nicknames of appellative character. A significant part in the oikonyms group is the group based on foreign-language Christian names. The third group includes settlement names, derived from the ancient complex Indo-European names. The fourth group consists of hybrid of Balto-Slavic names; a typical feature of which is the reconstruction of a Slavic-Baltic bases, which corresponds to the chronology of the development of this territory.Baltic names in the investigated territory, in the form of phonetic and morphological substitution, are the evidence of close Balto-Slavic linguistic and cultural contacts. Many oikonyms of Baltic origin are preserved in the investigated territory as part of modern Belarusian surnames. Nazwy toponimiczne pochodz?ce od antroponimów na pograniczu bia?orusko-polskimArtyku? analizuje toponimy pochodz?ce od antroponimów na ziemi grodzie?skiej, odnotowane w materia?ach pi?miennych od XV do XVII w. i porównuje je z aktualnymi danymi. Celem okre?lenia j?zykowych, kulturowych i historycznych uwarunkowa? tego regionu zbadano struktur? i ewolucj? przestrzenn? cech nazw s?owia?skich i ba?tyckich.Z historycznego i etymologicznego punktu widzenia mo?na wyznaczy? ró?ne okresy. Liczn? grup? tworz? ojkonimy pochodzenia ba?tyckiego i s?owia?skiego, tworzone od nazw osobowych i przydomków o charakterze apelatywnym. Znaczna cz??? ojkonimów wywodzi si? od obcoj?zycznych imion chrze?cija?skich. Trzecia grupa obejmuje nazwy osad, pochodz?ce od z?o?onych nazw indoeuropejskich. Na grup? czwart? sk?adaj? si? hybrydy nazw ba?to-s?owia?skich, zrekonstruowane od podstaw s?owia?sko-ba?tyckich, odpowiadaj?ce stosunkom etnicznym i historii osadnictwa na badanym obszarze. Nazwy ba?tyckie na badanym terytorium, w formie substytucji fonetycznej i morfologicznej, dowodz? bliskich ba?to-s?owia?skich kontaktów j?zykowych i kulturalnych. Liczne ojkonimy pochodzenia ba?tyckiego zachowa?y si? na badanym terytorium jako element wyst?puj?cy we wspó?czesnych nazwiskach bia?oruskich.

  14. Aktywacja j?drowego czynnika transkrypcyjnego i produkcja TNF-? przez ludzkie komórki p?uc pod wp?ywem wielopier?cieniowych w?glowodorów aromatycznych i zarodników grzybów w warunkach in vitro

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    Wojciech Walkowiak

    2011-03-01

    Full Text Available Wprowadzenie: W badaniach in vitro wykazano, ?e zarodniki grzybów i wielopier?cieniowe w?glowodory aromatyczne (WWA powstaj?ce w trakcie spalania paliw zawieraj?cych w?giel, stymuluj? aktywacj? niektórych szlaków sygna?owych (Signal Transduction and Activator of Transcription - STAT w ludzkich komórkach nab?onkowych p?uc. Obecnie zbadano, czy WWA i zarodniki Aspergillus fumigatus oraz Alternaria sp. indukuj? aktywacj? j?drowego czynnika transkrypcyjnego-kB (NF-kB, zwi?zanego z syntez? mediatorów reakcji zapalnej i stymuluj? produkcj? TNF-? przez ludzkie komórki nab?onkowe p?uc linii A549. Materia? i metody: Komórki nab?onkowe p?uc A549 traktowano przez 24 godz. i 7 dni, ekstraktem WWA uzyskanym ze spalin samochodowych i zarodnikami Aspergillus fumigatus i Alternaria sp. (103/ml. Metoda immunocytochemiczna, z wykorzystaniem króliczych przeciwcia? anty-p65, pos?u?y?a do lokalizacji j?drowego czynnika transkrypcyjnego. Odsetek komórek z zabarwionym j?drem wyra?a? stopie? aktywacji tego bia?ka (Nk-kB+. Poziom TNF-? w nads?czach znad komórek A549 okre?lono metod? immunoenzymatyczn?. Wyniki: WWA i zarodniki grzybów aktywowa?y system transkrypcyjny Nk-kB i produkcj? TNF-? przez komórki nab?onkowe p?uc A549, in vitro. Najwy?szy stopie? aktywacji czynnika NF-kB i poziom TNF-? obserwowano w komórkach traktowanych 24 godz. zarodnikami Aspergillus fumigatus. W komórkach stymulowanych nietoksyczn? dawk? WWA i traktowanych zarodnikami Aspergillus fumigatus lub Alternaria sp. obserwowano ni?sz? aktywacj? czynnika NF-kB oraz mniejsz? produkcj? TNF-?, w porównaniu z komórkami inkubowanymi tylko z zarodnikami tych grzybów. Mieszanina w?glowodorów powodowa?a obni?enie aktywacji systemu NF-kB w odpowiedzi na zarodniki grzybów. Po 7 dniach aktywacja czynnika transkrypcyjnego i poziom TNF-? mala?y i nadal w?glowodory hamowa?y reakcj? komórek na zarodniki grzybów. Podsumowanie: Wyst?puj?ce w powietrzu wielopier?cieniowe w?glowodory aromatyczne oraz zarodniki grzybów stymulowa?y aktywacj? bia?ek NF-kB i syntez? TNF-? w komórkach nab?onkowych p?uc. WWA ogranicza?y reakcj? komórek p?uc na zarodniki grzybów, co mo?e sprzyja? rozwojowi infekcji grzybiczych.

  15. Budget impact analysis resulting from the use of dabigatran etexilate in preventing stroke in patients with non-valvular atrial fibrillation in Italy

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    Francesco Mennini

    2012-09-01

    Full Text Available Background: atrial fibrillation (AF is the most common form of alteration in cardiac rhythm and associated with more severe episodes of stroke. Treatment with oral anticoagulants vitamin K antagonists (VKA such as warfarin, is nowadays the therapy of choice for stroke prevention in patients with AF, but dabigatran etexilate (DE 150 mg twice daily was more clinically effective than warfarin in reducing the risk of stroke or systemic embolism, ischaemic stroke and vascular mortality whereas DE 110 mg twice daily was non-inferior to warfarin.Aim: to assess the affordability of the use of DE for the Italian NHS, in patients with non-valvular AF (NVAF through a budget impact analysis (BIA.Methods: the BIA in a timeframe of 5 years was divided into 3 scenarios (1: current management of patients with NVAF; 2: all patients with NVAF treated with VKA; 3: all patients with NVAF treated with DE. The population considered is the one with indication for anticoagulation. Analysis is from the NHS perspective: therefore, indirect costs are excluded.Results: the underuse of oral anticoagulation, associated with the difficulty in keeping the patients treated with VKA within an acceptable therapeutic range, results in an enormous social and human cost, represented by a total of more than 63,000 strokes cumulated in the 5-year period considered. The cumulative cost for the scenario 1 over the 5-year period is over € 2.3 billion. In the scenario 2 the number of strokes avoided per year increases by -5,219 compared to no treatment (-2,368 compared to scenario 1, although the number of events remains high (about 10,000 events/year. In the 5-year observation period the scenario 2 would result in a reduction in the total number of strokes (-12,323 events vs. scenario 1, and savings for the NHS of around 95 million Euros compared to scenario 1. In the Scenario 3 there is a reduction of more than 38,600 of the total cumulative number of strokes vs. the scenario 1 and over 26,200 vs. scenario 2, and savings for the NHS at the fifth year of observation of circa 174 million Euros vs. scenario 1 and 123 million Euros vs. scenario 2.Conclusion: DE in Italy is economically sustainable, as it allows savings for the NHS in the management of patients with NVAF from the second year vs. no treatment and vs. treatment with VKA

  16. Hemofilia nabyta w przebiegu tocznia rumieniowatego uk?adowego

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    Zenobia Czuszy?ska

    2011-02-01

    Full Text Available Hemofilia nabyta jest rzadk? jednostk? chorobow? spowodowan?wyst?powaniem autoprzeciwcia?, najcz??ciej przeciw VIII czynnikowikrzepni?cia. Cz?sto?? wyst?powania tej choroby jest szacowanana 1,3–1,5 chorych na milion mieszka?ców na rok. Ponadpo?owa przypadków hemofilii nabytej (acquired haemophilia – AHma charakter samoistny. Wtórna posta? najcz??ciej wyst?pujew przebiegu chorób autoimmunologicznych, takich jak: tocze?rumieniowaty uk?adowy, reumatoidalne zapalenie stawówi zespó? Sjögrena. Hemofilia nabyta mo?e wyst?pi? tak?e w przebiegunowotworów, chorób uk?adu krwiotwórczego oraz w okresieci??y i po?ogu. Przyczyn? mo?e by? równie? stosowanie niektórychleków. W przeciwie?stwie do wrodzonej hemofilii, którawyst?puje u m??czyzn, hemofilia nabyta wyst?puje u obojga p?ci,pojawia si? nagle, a jej przebieg mo?e by? gwa?towny i ci??ki.WAH bardzo rzadko wyst?puj? krwawienia do stawów, natomiastdominuj? rozleg?e wynaczynienia krwi pod skór? oraz krwawienia?luzówkowe.W artykule opisano przypadek 27-letniej kobiety z toczniemrumieniowatym uk?adowym, u której w trakcie aktywnej chorobypojawi?y si? rozleg?e podskórne wylewy krwawe (ryc. 1–3. Zaaktywno?ci? choroby podstawowej przemawia?o wysokie mianoprzeciwcia? przeciwko dwuniciowemu DNA, niskie warto?ci sk?adowychdope?niacza, niedokrwisto??, a tak?e bia?komocz ponad1,3 g/dob? oraz aktywny osad moczu. W badaniach laboratoryjnychwykazano izolowane wyd?u?enie czasu cz??ciowej tromboplastynypo aktywacji (APTT – 98 s (warto?? referencyjna 26–37 s.Wykluczono obecno?? kr???cego antykoagulantu tocznia (LA.Stwierdzono znacznie obni?on? aktywno?? VIII czynnika krzepni?cia (0,3% oraz wysokie miano inhibitora tego czynnika (49 jednostekBethesda. Zastosowano intensywne leczenie glikokortykosteroidamii cyklofosfamidem w pulsach, uzyskuj?c pe?n? remisj?nabytej hemofilii. Aktywno?? czynnika VIII wróci?a do warto?ci prawid?owych.Jednocze?nie obserwowano stopniowe zmniejszeniemiana przeciwcia? dla czynnika VIII (tab. I. ??cznie podano 6 gcyklofosfamidu, a nast?pnie kontynuowano leczenie cyklosporyn?i prednizonem. Obecnie pacjentka jest w okresie remisji – niestwierdzono bia?komoczu i zmian skórnych.

  17. Fabricación de gres porcelánico empleando ceniza de tamo de arroz en sustitución del feldespato

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    Guzmán, Álvaro

    2013-12-01

    Full Text Available In this research are presented the results of using rice straw ash (RSA in low proportions as substitute of feldspar for manufacturing stoneware tiles. Specimens of semidry triaxial mixtures, where feldspar was substituted for different percentages (25 % and 50 % of RSA, were prepared by uniaxial pressing, followed by drying and sintering. Physical and mechanical properties of sintered bodies were evaluated. Porcelain stoneware tile specimens C0 and CF25 reached bending strength and water absorption values were in accordance with standard ISO 13006 (Annex G, BIa ( ? 35 MPa and ? 0.5 %, respectively. However, in porcelain stoneware tile specimens CF50 due to bloating phenomenon was not possible obtain commercial tiles in accordance with standard ISO 13006. By using Scanning Electron Microscopy (SEM needles of primary and secondary mullite were identified in a vitreous phase; and by using X-Ray Diffraction (XRD mullite and quartz phases were identified. It was concluded that feldspar can be substituted positively by RSA in stoneware tile pastes.En este artículo se presentan los resultados de una investigación sobre el uso de la ceniza de tamo de arroz (CTA como reemplazo del feldespato en la fabricación de gres porcelánico. Se prepararon mezclas donde la CTA sustituyó al feldespato en dos volúmenes distintos (25 % y 50 %. Especímenes de las pastas obtenidas fueron moldeados, secados, y cocidos. Las propiedades físicas (densidad aparente, porosidad, absorción, entre otras y mecánicas (resistencia a flexión de los especímenes cocidos estándar (C0, fueron comparadas con las de especímenes cocidos donde el material fundente fue sustituido en la formulación por CTA en porcentajes del 25 % y 50 % (CF25 y CF50. Los especímenes cocidos C0 y C25, podrían considerarse como gres porcelánico pertenecientes al grupo BIa (resistencia a flexión > 35 MPa y absorción de agua ? 0,5 %; mientras que en aquellos especímenes cocidos CF50 el fenómeno de hinchamiento impide la obtención de baldosas de características comerciales. Mediante MEB se evidenció en la microestructura de ambas piezas cocidas (C0 y CF25 la presencia de cristales de mullita primaria, adyacentes a cristales de mullita secundaria (agujas elongadas; y mediante DRX se corroboró la presencia de la fase mullita, como también de la fase cuarzo. Se concluyó que la CTA bajo las condiciones de obtención, sí reemplaza parcialmente al feldespato en la elaboración de gres porcelánico.

  18. A controlled trial of protein enrichment of meal replacements for weight reduction with retention of lean body mass

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    Bowerman Susan

    2008-08-01

    Full Text Available Abstract Background While high protein diets have been shown to improve satiety and retention of lean body mass (LBM, this study was designed to determine effects of a protein-enriched meal replacement (MR on weight loss and LBM retention by comparison to an isocaloric carbohydrate-enriched MR within customized diet plans utilizing MR to achieve high protein or standard protein intakes. Methods Single blind, placebo-controlled, randomized outpatient weight loss trial in 100 obese men and women comparing two isocaloric meal plans utilizing a standard MR to which was added supplementary protein or carbohydrate powder. MR was used twice daily (one meal, one snack. One additional meal was included in the meal plan designed to achieve individualized protein intakes of either 1 2.2 g protein/kg of LBM per day [high protein diet (HP] or 2 1.1 g protein/kg LBM/day standard protein diet (SP. LBM was determined using bioelectrical impedance analysis (BIA. Body weight, body composition, and lipid profiles were measured at baseline and 12 weeks. Results Eighty-five subjects completed the study. Both HP and SP MR were well tolerated, with no adverse effects. There were no differences in weight loss at 12 weeks (-4.19 ± 0.5 kg for HP group and -3.72 ± 0.7 kg for SP group, p > 0.1. Subjects in the HP group lost significantly more fat weight than the SP group (HP = -1.65 ± 0.63 kg; SP = -0.64 ± 0.79 kg, P = 0.05 as estimated by BIA. There were no significant differences in lipids nor fasting blood glucose between groups, but within the HP group a significant decrease in cholesterol and LDL cholesterol was noted at 12 weeks. This was not seen in the SP group. Conclusion Higher protein MR within a higher protein diet resulted in similar overall weight loss as the standard protein MR plan over 12 weeks. However, there was significantly more fat loss in the HP group but no significant difference in lean body mass. In this trial, subject compliance with both the standard and protein-enriched MR strategy for weight loss may have obscured any effect of increased protein on weight loss demonstrated in prior weight loss studies using whole food diets.

  19. Znaczenie apoptozy w patogenezie tocznia rumieniowatego uk?adowego

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    B?a?ej Jasiuk

    2005-06-01

    Full Text Available Tocze? rumieniowaty uk?adowy (SLE jest uogólnionym schorzeniem autoimmunologicznym, dotycz?cym g?ównie kobiet wieku wczesnej doros?o?ci. Etiologia schorzenia pozostaje nieznana, chocia? istniej? pewne czynniki, które mog? przyczyniaæ si? do powstania SLE: predyspozycje genetyczne, infekcje wirusowe oraz niektóre leki i ?rodki chemiczne. Istnieje tak?e coraz wi?ksza liczba danych wskazuj?ca na to, ?e w rozwoju SLE istotn? rol? odgrywa zaburzenie procesu apoptozy. Stwierdzono, ?e u wielu pacjentów z SLE powstaj?ce cia?ka apoptotyczne nie ulegaj?fagocytozie i zniszczeniu. W wyniku tego b?ona cia?ka apoptotycznego traci integralno??, a fragmenty komórek ulegaj? wtórnej martwicy i do przestrzeni mi?dzykomórkowej uwalniane s? kwasy nukleinowe komórki oraz bia?ka, które w normalnych warunkach znajduj? si? w jej wn?trzu. Generowany jest tym samym proces zapalny, mog?cy zako?czy? si? autoimmunizacj?. Do powstania tocznia przyczyniaæ mog?si? równie? niedobory enzymów trawi?cych DNA oraz sk?adników dope?niacza, które bior? czynny udzia? w usuwaniu cia?ek apoptotycznych. Mimo ?e hipoteza o kluczowej roli apoptozy w powstawaniu tocznia u osób predysponowanych zas?uguje na uwag?, konieczne s? dalsze badania, które b?d? mieæ na celu pe?ne wyja?nienie etiopatogenezy tocznia.

  20. Evaluation of nutritional indicators and body composition in patients with advanced liver disease enrolled for liver transplantation

    Scientific Electronic Library Online (English)

    Daniela Salate Biagioni, Vulcano; Maria Antonieta de Barros Leite, Carvalhaes; Alexandre, Bakonyi Neto.

    2013-10-01

    Full Text Available PURPOSE: Malnutrition is prevalent in patients with advanced liver disease (LD) related to multifactorial causes. Fluid retention can underestimate the nutritional status based on anthropometric measures. We evaluated nutritional indicators and body composition (BC) in patients with liver cirrhosis [...] and correlated them with LD severity. METHODS: Forty three patients with LD enrolled for liver transplantation were evaluated by Anthropometric measures, subjective evaluation (Global Assessment of Nutritional Status - SGA) and biochemical indicators. Single-frequency electrical bioimpedance (SFE-BIA) was used to evaluate body composition (BC). It measured resistance (R), reactance (Xc) and the phase angle (PA). LD severity was estimated by Child-Pugh and Meld criteria (Model for End-Stage Liver Disease). RESULTS: Child-Pugh index between patients was 7.11±1.70 and Meld was 12.23±4.22. Arm Circumference, Arm Muscle Circumference and Arm Muscle Area, SGA, hemoglobin, hematocrit and albumin showed better correlation with disease severity. Xc and PA showed correlation both with Meld and Child-Pugh score when BC were evaluated. PA was depleted in 55.8% of the patients. CONCLUSIONS: Diagnosis of malnutrition varied according to the method. Global assessment of nutritional status showed better correlation with disease severity than with objective methods. Single-frequency electrical bioimpedance for body composition analysis in cirrhotic patients must be cautiously used; however, primary vectors seems to be valid and promising in clinical practice.