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1

Rheology and BIA  

Science.gov (United States)

Is it possible to link erythrosedimentation to a global monofrequency of 50KHz bio impedance analysis parameters? Two populations, Control (N=20, average age of 38 ± 18 years, 55% female predominance) versus neopathology undergoing chemotherapy treatment (N=10, average age of 51 ± 10 years, 70% female predominance) were exposed to two simple tests: Blood composition and erythrosedimentation and global Bio Impedance mono frequency (50 KHz) assessment analysis. The Results of simple statistical tests (average, anova) show that the two populations were significantly different (1%), using both biological bood tests or BIA. Only the neopathological group showed a significant correlation between the erythrosedimentation the bio impedance parameters such as Phase angle or Xc (ratio - 0.93 and - 0.93)

Piquemal, M.; Zanotti, J. C.

2012-12-01

2

25 CFR 103.38 - Is there anything else for BIA or the lender to do after BIA makes payment?  

Science.gov (United States)

...2009-04-01 false Is there anything else for BIA or the lender to do after BIA makes payment? 103.38 Section 103.38 Indians...INSURANCE, AND INTEREST SUBSIDY Default and Payment by BIA § 103.38 Is there anything else for BIA or...

2009-04-01

3

Dinitro and mononitrobenzo(ghi)perylenes and mononitrocoronene are highly mutagenic in the Ames Salmonella assay  

Energy Technology Data Exchange (ETDEWEB)

Benzo(ghi)perylene (B(ghi)Per, (191-24-2)) and coronene (Cor, (191-07-1)) are major constituents of the polycyclic aromatic hydrocarbons (PAH) found in automobile exhaust and polluted air. Nitration of these PAH by NO/sub 2/ and traces of HNO/sub 3/, which are also formed in automobile exhaust, seems highly probable. To identify the presence of these nitroarenes in environmental samples and to examine their mutagenic potencies the authors synthesized and characterized nitro derivatives of both PAH. 5-NO/sub 2/B(ghi)Per(81316-87-2) and 1-NO/sub 2/Cor(81316-84-9) produced 405 and 340 reverants/nmole, respectively, in TA98 in the presence of 0.6 mg of microsomal enzymes (S-9) per plate in the Ames test. 5,8-diNO/sub 2/B(ghi)Per (83292-25-5) and 5,10-diNO/sub 2/B(ghi)Per (83292-26-6) produced 21,500 and 4000 revertants/nmole in TA98NR without microsomal activation. Mutagenicity for the dinitrobenzo(ghi)perylenes was also high in TA98NR and TA97 but was reduced by 97% in TA98-1,8DNP. There is close similarity in the orientation and distances between reactive sites (nitronium ion and carbocation) on the dinitrobenzo(ghi)perylenes and 1,6 dinitropyrene (42397-64-8) and 1,8-dinitropyrene (42397-65-9).

Vance, W.A.; Chan, R.

1983-01-01

4

Resistivity and phase in localized BIA  

Science.gov (United States)

We describe a system for highly reproducible non-invasive rf impedance measurements as a function of position along body segments such as the thigh. Results are reported for mainly healthy male and female subjects ranging in age from 19 to 65 and in body-mass index from 15 to 40. A principal conclusion is that the phase of the impedance falls monotonically with increasing distance from the knee, with average values substantially above what is found using standard, whole-body bioelectrical impedance analysis (BIA). To compensate for thigh shape, the data are further analysed using an anatomical model based on reasonable approximations for the distributions of muscle, fat and bone, yielding values of the effective resistivity for current flow parallel to the muscle fibres. The phase and resistivity results are discussed with reference to the whole-body BIA study of maintenance haemodialysis patients by Chertow et al, and in regard to possible physiological correlations observed in this work.

Shiffman, C. A.; Aaron, R.; Amoss, V.; Therrien, J.; Coomler, K.

1999-10-01

5

25 CFR 170.803 - What facilities are eligible under the BIA Road Maintenance Program?  

Science.gov (United States)

... What facilities are eligible under the BIA Road Maintenance Program? 170.803...WATER INDIAN RESERVATION ROADS PROGRAM BIA Road Maintenance § 170.803 What facilities are eligible under the BIA Road Maintenance Program? (a)...

2010-04-01

6

76 FR 4369 - Interim Deputation Agreements; Interim BIA Adult Detention Facility Guidelines  

Science.gov (United States)

...Interim Deputation Agreements; Interim BIA Adult Detention Facility Guidelines AGENCY...announces the online publication of the Interim BIA Adult Detention Facility Guidelines and...Affairs Web site. DATES: These Interim BIA Adult Detention Facility Guidelines...

2011-01-25

7

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

Science.gov (United States)

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.

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

2012-12-01

8

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.

2012-12-20

9

DOCKING OF STRUCTURALLY RELATED DIOLEPOXIDES OF BENZO(GHI)FLUORANTHENE WITH DNA  

Science.gov (United States)

Docking of structurally-related diolepoxides of benzo{ghi}fluoranthene and benzo{c}phenanthrene with DNA Polycyclic aromatic hydrocarbons are a class of chemicals found in the environment. Some class members are potent carcinogens while others with similar structures show litt...

10

25 CFR 900.95 - What is BIA or IHS excess property?  

Science.gov (United States)

...2009-04-01 2009-04-01 false What is BIA or IHS excess property? 900.95 Section 900...ACT Property Donation Procedures Bia and Ihs Excess Property § 900.95 What is BIA or IHS excess property? BIA or IHS excess...

2009-04-01

11

25 CFR 170.805 - What are the local, tribal, and BIA roles in transportation facility maintenance?  

Science.gov (United States)

...false What are the local, tribal, and BIA roles in transportation facility maintenance...WATER INDIAN RESERVATION ROADS PROGRAM BIA Road Maintenance § 170.805 What are the local, tribal, and BIA roles in transportation facility...

2010-04-01

12

25 CFR 900.96 - How can Indian tribes or tribal organizations learn about BIA and IHS excess property?  

Science.gov (United States)

...tribal organizations learn about BIA and IHS excess property? 900.96 Section 900... Property Donation Procedures Bia and Ihs Excess Property § 900.96 How can...tribal organizations learn about BIA and IHS excess property? The Secretary...

2010-04-01

13

25 CFR 103.40 - Will BIA make exceptions to its criteria for denying payment?  

Science.gov (United States)

... 1 2010-04-01 2010-04-01 false Will BIA make exceptions to its criteria for denying payment...INSURANCE, AND INTEREST SUBSIDY Default and Payment by BIA § 103.40 Will BIA make exceptions to its criteria for denying...

2010-04-01

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Die Bedeutung der bioelektrischen Impedanzanalyse (BIA im geriatrischen Bereich  

Directory of Open Access Journals (Sweden)

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.

Edlinger E

2002-01-01

15

Carotenoids in certain lichens of Bia?owie?a Forest  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 rangiferi...

1994-01-01

16

Q-site occupancy defines heme heterogeneity in Escherichia coli nitrate reductase A (NarGHI).  

Science.gov (United States)

The membrane subunit (NarI) of Escherichia coli nitrate reductase A (NarGHI) contains two b-type hemes, both of which are the highly anisotropic low-spin type. Heme bD is distal to NarGH and constitutes part of the quinone binding and oxidation site (Q-site) through the axially coordinating histidine-66 residue and one of the heme bD propionate groups. Bound quinone participates in hydrogen bonds with both the imidazole of His66 and the heme propionate, rendering the EPR spectrum of the heme bD sensitive to Q-site occupancy. As such, we hypothesize that the heterogeneity in the heme bD EPR signal arises from the differential occupancy of the Q-site. In agreement with this, the heterogeneity is dependent upon growth conditions but is still apparent when NarGHI is expressed in a strain lacking cardiolipin. Furthermore, this heterogeneity is sensitive to Q-site variants, NarI-G65A and NarI-K86A, and is collapsible by the binding of inhibitors. We found that the two main gz components of heme bD exhibit differences in reduction potential and pH dependence, which we posit is due to differential Q-site occupancy. Specifically, in a quinone-bound state, heme bD exhibits an Em,8 of -35 mV and a pH dependence of -40 mV pH(-1). In the quinone-free state, however, heme bD titrates with an Em,8 of +25 mV and a pH dependence of -59 mV pH(-1). We hypothesize that quinone binding modulates the electrochemical properties of heme bD as well as its EPR properties. PMID:24592999

Fedor, Justin G; Rothery, Richard A; Giraldi, Karissa S; Weiner, Joel H

2014-03-25

17

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

Science.gov (United States)

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.

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

2013-04-01

18

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.

2013-04-18

19

Zmiany skórne jako objaw prodromalny nawrotu przewlek?ej bia?aczki szpikowej - opis przypadku  

Directory of Open Access Journals (Sweden)

Full Text Available Zmiany skórne mog? by? jednym ze znamiennych objawów nowotworów uk?adu krwiotwórczego. Wykwity skórne mog? poprzedza? wyst?pienie bia?aczki, pojawi? si? w czasie przebiegu choroby lub by? jednym z objawów prodromalnych jej nawrotu. Zmiany skórne w przebiegu bia?aczek s? specyficzne (leu-kemia cutis, leukemic vasculitis lub niespecyficzne (leukemidy. Bia?aczka przebiegaj?ca z wykwitami w obr?bie skóry (leukemia cutis oraz bia?aczkowe zapalenie naczy? (leukemic vasculitis wyst?puj? rzadko, ale ?wiadcz? o du?ej z?o?liwo?ci choroby. Niespecyficzne wykwity skórne w przebiegu bia?aczek mog? sprawia? du?e trudno?ci diagnostyczne, ze wzgl?du na du?? ró?norodno??. Wielopostaciowe, niespecyficzne zmiany skórne, cz?sto przebiegaj?ce ze ?wi?dem, szczególnie u osób starszych, nale?y zawsze ró?nicowa? z bia?aczk?. Praca przedstawia przypadek pacjenta z przewlek?? bia?aczk? mielobla-styczn? (chronic myeloblastic leukemia, CML w wywiadzie, przyj?tego na oddzia? dermatologiczny z podejrzeniem polekowego zapalenia skóry. Obserwowane u chorego niespecyficzne zmiany skórne okaza?y si? znamiennym objawem prodromalnym nawrotu przewlek?ej bia?aczki mieloblastycznej.

Anna Rosi?ska

2008-09-01

20

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

Science.gov (United States)

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 (pBIA 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.

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

2013-04-01

 
 
 
 
21

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.

2013-04-18

22

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 2010-04-01 false When must BIA raise the issue of limitation or reduction...EDUCATION ACT Limitation and/or Reduction of BIA Services, Contracts, and Funds § 1000.194 When must BIA raise the issue of limitation or...

2010-04-01

23

25 CFR 900.97 - How can an Indian tribe or tribal organization acquire excess BIA or IHS property?  

Science.gov (United States)

...tribal organization acquire excess BIA or IHS property? 900.97 Section 900.97... Property Donation Procedures Bia and Ihs Excess Property § 900.97 How can...tribal organization acquire excess BIA or IHS property? (a) The Indian...

2010-04-01

24

Carotenoids in certain lichens of Bia?owie?a Forest  

Directory of Open Access Journals (Sweden)

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.

Bazyli Czeczuga

1994-03-01

25

Forecasting DNI and GHI based on the WRF model. An evaluation study in Andalusia (Southern Spain)  

Energy Technology Data Exchange (ETDEWEB)

In this work, we evaluate the reliability of GHI and DNI forecast based on the WRF mesoscale atmospheric model in Andalusia (Southern Spain). Particularly, the role of the spatial resolution of the model set up and the use of a spatial-averaging post-processing step was analyzed. To this end, a set of two-days-ahead one-year-length integrations, with different spatial resolutions (1, 3, 9 and 27 km) were evaluated. Results showed, firstly, that an increment in the spatial resolution does not enhance the reliability of the model forecasts, except under clear sky conditions. Secondly, that, in general, an spatial averaging of the solar forecasts corresponding to the grid points surrounding the location of interest provides a notable improvement in the forecasting skills. The most significant improvement is found when forecasts corresponding to an area of about 100 by 100 km are averaged. The role of the WRF model cloud representation in the former results is discussed. (orig.)

Lara Fanego, Vicente; Ruiz Arias, Jose Antonio; Pozo Vazquez, Antonio David; Santos Alamillos, Francisco Javier; Tovar Pescador, Joaquin [Jaen Univ. (Spain). Dept. of Physics; Quesada Ruiz, Samuel [Jaen Univ. (Spain). Dept. of Computer Engineering

2011-07-01

26

Bia manuelii (Euphorbiaceae: Acalyphoideae), a new species from Sierra de Coalcomán, Michoacán, Mexico / Bia manuelii (Euphorbiaceae: Acalyphoideae), una especie nueva de la sierra de Coalcomán, Michoacán, México  

Scientific Electronic Library Online (English)

Full Text Available SciELO Mexico | Language: English Abstract in spanish Bia (Euphorbiaceae-Acalyphoideae) es un género de 6 especies presentes desde el centro de México hasta Sudamérica que hasta hace poco se incluía en el género Tragia. Se describe como nueva especie a Bia manuelii y se ilustra con fotografías. Este taxón representa un endemismo estrecho, conocido sola [...] mente de 2 recolectas en la sierra de Coalcomán, municipio de Coalcomán, en el suroeste de Michoacán. Crece en bosque tropical caducifolio en elevaciones de 990 a 1 110 m. Se proporciona una clave para distinguirla de Bia cordata (= Tragia bailloniana), la otra especie del género presente en México. Abstract in english The genus Bia (Euphorbiaceae-Acalyphoideae) is a small assemblage of 6 species ranging from central Mexico to South America that has until recently been included in the genus Tragia. The new species Bia manuelii is described and illustrated with photographs. This taxon is a narrow endemic known only [...] from 2 collections in the Sierra de Coalcomán, municipality of Coalcomán, in southwestern Michoacán. It grows in tropical deciduous forest at elevations from 990 to 1 110 m. A key is provided to distinguish this species from Bia cordata (= Tragia bailloniana), the only other species of the genus in Mexico.

Victor W., Steinmann; Yocupitzia, Ramírez-Amezcua.

27

Interspecies signalling: Pseudomonas putida efflux pump TtgGHI is activated by indole to increase antibiotic resistance.  

Science.gov (United States)

In Gram-negative bacteria, multidrug efflux pumps are responsible for the extrusion of chemicals that are deleterious for growth. Some of these efflux pumps are induced by endogenously produced effectors, while abiotic or biotic signals induce the expression of other efflux pumps. In Pseudomonas putida, the TtgABC efflux pump is the main antibiotic extrusion system that respond to exogenous antibiotics through the modulation of the expression of this operon mediated by TtgR. The plasmid-encoded TtgGHI efflux pump in P.?putida plays a minor role in antibiotic resistance in the parental strain; however, its role is critical in isogenic backgrounds deficient in TtgABC. Expression of ttgGHI is repressed by the TtgV regulator that recognizes indole as an effector, although P.?putida does not produce indole itself. Because indole is not produced by Pseudomonas, the indole-dependent antibiotic resistance seems to be part of an antibiotic resistance programme at the community level. Pseudomonas putida recognizes indole added to the medium or produced by Escherichia coli in mixed microbial communities. Transcriptomic analyses revealed that the indole-specific response involves activation of 43 genes and repression of 23 genes. Indole enhances not only the expression of the TtgGHI pump but also a set of genes involved in iron homeostasis, as well as genes for amino acid catabolism. In a ttgABC-deficient P.?putida, background ampicillin and other bactericidal compounds lead to cell death. Co-culture of E.?coli and P.?putida ?ttgABC allowed growth of the P.?putida mutant in the presence of ampicillin because of induction of the indole-dependent efflux pump. PMID:24373097

Molina-Santiago, Carlos; Daddaoua, Abdelali; Fillet, Sandy; Duque, Estrella; Ramos, Juan-Luis

2014-05-01

28

Alterations in Growth Related Genes (GH-I, IGF-I and IGF-II Expression with Acute Copper Exposure in Rainbow Trout  

Directory of Open Access Journals (Sweden)

Full Text Available In this study, the acute effects of copper (CuSO4.5H2O on the expression of Growth Hormone-I (GH-I and Insulin like Growth Factors I and II (IGF-I and IGF-II were investigated in rainbow trout (Oncorhynchus mykiss muscle tissue. For this purpose, rainbow trout were exposed to 100 ?g L-1 (Sublethal concentration copper sulfate in moderately hard freshwater. After 6, 12, 24 and 48 h of treatment, expression of white muscle GH-I, IGF-I and IGF-II mRNAs were measured by means of quantitative real-time PCR. During the exposure experiments, no mortalities occurred. All mRNA levels significantly decreased after copper administration (p<0.05. The results indicate that short term copper exposure suppresses the mRNA expression levels of GH-I, IGF-I and IGF-II in rainbow trout muscles.

Sukru Beydemir

2011-01-01

29

Analiza wyst?powania patogenów grzybiczych w pracowniach rehabilitacyjnych w Bia?ymstoku i Krakowie  

Directory of Open Access Journals (Sweden)

Full Text Available Wprowadzenie: Patogeny grzybicze stanowi? bardzo wa?ny element sk?adowy tzw. aerozolu biologicznego. Ich ?ród?em mo?e by? personel, pacjent, powietrze, sprz?t szpitalny, urz?dzenia wodno-kanalizacyjne i filtracyjne szpitala. Cel pracy: Ocena cz?sto?ci wyst?powania patogenów grzybiczych w pracowniach rehabilitacyjnych w Bia?ymstoku i Krakowie oraz wykazanie ewentualnych zale?no?ci mi?dzy lokalizacj? pracowni, liczb? kolonii grzybów a temperatur? i wilgotno?ci? w nich panuj?c?. Materia? i metody: Badania przeprowadzono w wybranych pracowniach rehabilitacyjnych Bia?egostoku i Krakowa. Materia? do bada? stanowi?o powietrze pobierane: przy wej?ciach do budynku, korytarzu oraz w wybranych pomieszczeniach, a tak?e próbki pobierane ze ?cian, materacy, ?awek, wanien, ?cian basenu. Do monitorowania zanieczyszczenia powietrza grzybami u?yto aparatu SAS SUPER 100, a pomiaru wilgotno?ci i temperatury termohigrometru PWT-401 firmy Elmetron. Biologiczne monitorowanie ska?enia powierzchni prowadzono za pomoc? aplikatora Count-Tact. Klasyfikacji wyizolowanych grzybów dokonywano zgodnie z obowi?zuj?cymi procedurami. Wyniki: Najwi?ksz? liczb? grzybów izolowano z próbek powietrza pobranych z sali kinezyterapii (Bia?ystok - 36 CFU/l, Kraków - 21 CFU/l oraz z korytarza II (Bia?ystok -34 CFU/l, Kraków - 20 CFU/l. Najwy?sza temperatura w Bia?ymstoku panowa?a na korytarzu przed wej?ciem do budynku (23,5°C, w Krakowie - w gabineciefizykoterapii (26,4°C. Najwy?sz? wilgotno?? wzgl?dn? stwierdzono w Bia?ymstoku (31,6% na korytarzu II, a w Krakowie na korytarzu II (41,4%. Z badanych powierzchni ?cian, w obu miastach, najwi?ksz? liczb? kolonii grzybów izolowano w brudowniku (Bia?ystok-14 CFU/l, Kraków -11 CFU/l. Z próbek pobranego powietrza w Bia?ymstoku najcz??ciej izolowano grzyby z gatunku Candidaalbicans, a w Krakowie z rodzaju Chrysosporium. Ze ?cian w Bia?ymstoku w wi?kszo?ci izolowano grzyby z gatunku Candida albicans, a w Krakowie z rodzaju Penicillium. Wnioski: G?ównym patogenem izolowanym z próbek pobranego powietrza w Bia?ymstoku by? grzyb z gatunku Candida albicans, a w Krakowie z rodzaju Chrysosporium. Wykazano istotne zale?no?ci mi?dzy ?rednimi warto?ciami CFU/l w zale?no?ci od miejsca poboru próbek powietrza. Temperatura i wilgotno?? panuj?ce w badanych pomieszczeniach ?wiadcz? o korzystnych warunkach do rozwoju grzybów.

El?bieta Krajewska-Ku?ak

2009-03-01

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Product ion studies of diastereomeric benzo[ghi]fluoranthene-2'-deoxynucleoside adducts by electrospray ionization and quadrupole ion trap mass spectrometry  

International Nuclear Information System (INIS)

The product ion formation characteristics of the protonated molecule ions generated from 10 different deoxynucleoside adducts of benzo[ghi]fluoranthene (B[ghi]F) have been studied using electrospray ionization (ESI) and quadrupole ion trap mass spectrometry to gain a better understanding of the fragmentation mechanisms that govern structure-specific fragmentation. The reaction of the syn- and anti-diastereomers of trans-3,4-dihydroxy-5,5a-tetrahydrobenzo[ghi]fluoranthene with DNA produce four deoxyguanosine, four deoxyadenosine, and two deoxycytidine adducts whose structures differ based on the cis/trans arrangement of the hydroxyl groups and nucleic acids bound to B[ghi]F. Those adducts that have structures where the nucleic acid and 3'-hydroxyl group of B[ghi]F are cis with respect to each other undergo extensive water loss whereas those isomers where the nucleic acid and 3'-hydroxyl group are trans do not. These results are consistent with a mechanism of water loss initiated by a hydrogen-bonding interaction between the charge-bearing proton on a heterocyclic nitrogen atom on the nucleic acid and the 3'-hydroxyl oxygen on the PAH. The dG and dC adducts are observed to undergo more extensive water loss than the dA adducts. Molecular modeling indicates that the larger relative abundances of the product ions formed by water loss for the dG and dC relative to dA are due to stronger hydrogen-bonding interactions prior to fragmentation and the greater stability of the carbocations formed at the C3' carbon after fragmentation

2006-01-31

31

Bioelectrical impedance analysis (BIA): a proposal for standardization of the classical method in adults  

Science.gov (United States)

The accuracy of BIA measurements is limited by different sources of error such as physical model, cross sectional area, ethnicity, body hydration, age and level of body fat among other variables. Equation for each population is required as they can produce overestimation when manufacturer's equations are used. The classical measurements hand to foot has shown better correlation against hydrodensitometry than foot to foot or hand to hand. However there is a lack for an accepted standard of BIA procedures. This is compounded when there is not a good report of the BIA study's methodology; hence the comparability between the results is poor and reduces the reliability of the method. Perhaps, standardization of methods would be the first step for BIA studies to move forward and subsequently improve its accuracy. Standardized procedures could also minimize the impact of these variables on studies results. The aim of this study was to propose a protocol as a checklist to standardize BIA procedures and produce comparable results from future studies performed with the classic hand-foot configuration in adults.

González-Correa, C. H.; Caicedo-Eraso, J. C.

2012-12-01

32

25 CFR 166.813 - How will the BIA determine the value of forage or crops consumed or destroyed?  

Science.gov (United States)

...How will the BIA determine the value of forage or crops consumed or destroyed? 166...How will the BIA determine the value of forage or crops consumed or destroyed? We will determine the value of forage or crops consumed or destroyed based...

2009-04-01

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25 CFR 900.98 - Who takes title to excess BIA or IHS property donated to an Indian tribe or tribal organization?  

Science.gov (United States)

...false Who takes title to excess BIA or IHS property donated to an Indian tribe or tribal... Property Donation Procedures Bia and Ihs Excess Property § 900.98 Who takes title to excess BIA or IHS property donated to an Indian tribe or...

2010-04-01

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Ostra bia?aczka promielocytowa (apl) powik?ana ostrym zapaleniem trzustki i k?tnicy  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Ostra bia?aczka promielocytowa (APL) jest rzadk? postaci? leukemii u dzieci, stanowi ok. 3-5% wszystkich postaci ostrych bia?aczek nielimfoblastycznych (ANLL). Wprowadzenie do leczenia kwasu all-transretinowego (ATRA), indukuj?cego ró?nicowanie komórek blastycznych do dojrza?ych form granu-locytów, znacznie poprawi?o wyniki leczenia. Terapia zwi?zana jest z bardzo powa?nymi powik?aniami do których nale?? m.in. zapalenie k?tnicy (typhlitis) oraz ostre zapalenie trzustki. Prze...

2004-01-01

35

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)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese [...] 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.

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

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Design and Development of a Portable WiFi enabled BIA device  

International Nuclear Information System (INIS)

A bioimpedance device (BIA) for evaluation of sarcopenia – age related muscle mass loss – is designed, developed and evaluated. The requirements were based on lightweight design, flexible and user enabled incorporation of measurement protocols and WiFi protocol for remote device control, full internet integration and fast development and usage of measurement protocols. The current design is based on usage of a microcontroller with integrated AD/DA converters. The prototype system was assembled and the operation and connectivity to different handheld devices and laptop computers was successfully tested. The designed BIA device can be accessed using TCP sockets and once the connection is established the data transfer runs successfully at the specified speed. The accuracy of currently developed prototype is about 5% for the impedance modulus and 5 deg. for the phase for the frequencies below 20 kHz with an unfiltered excitation signal and no additional amplifiers employed.

2013-04-18

37

Design and Development of a Portable WiFi enabled BIA device  

Science.gov (United States)

A bioimpedance device (BIA) for evaluation of sarcopenia - age related muscle mass loss - is designed, developed and evaluated. The requirements were based on lightweight design, flexible and user enabled incorporation of measurement protocols and WiFi protocol for remote device control, full internet integration and fast development and usage of measurement protocols. The current design is based on usage of a microcontroller with integrated AD/DA converters. The prototype system was assembled and the operation and connectivity to different handheld devices and laptop computers was successfully tested. The designed BIA device can be accessed using TCP sockets and once the connection is established the data transfer runs successfully at the specified speed. The accuracy of currently developed prototype is about 5% for the impedance modulus and 5 deg. for the phase for the frequencies below 20 kHz with an unfiltered excitation signal and no additional amplifiers employed.

Križaj, D.; Baloh, M.; Brajkovi?, R.; Žagar, T.

2013-04-01

38

Bia?ko C-reaktywne – wa?ny marker ryzyka kr??eniowego: nowe fakty  

Directory of Open Access Journals (Sweden)

Full Text Available W trakcie ostatnich lat jest obserwowany wyra?ny post?p w dziedzinie diagnostyki kardiologicznej oraz stratyfikacji ryzyka kr??eniowego. Sta?o si? to mo?liwe dzi?ki zastosowaniu nowoczesnych metod biochemicznych i immunologicznych. Szczególn? rol? przypisuje si? ostatnio markerom procesu zapalnego, a w?ród nich – ?atwo dost?pnemu oznaczeniu bia?ka C-reaktywnego. Poni?sza praca stanowi przegl?d najnowszych doniesie? na ten temat.

Katarzyna Ko?odziej

2004-06-01

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Comparisons of obesity assessments in over-weight elementary students using anthropometry, BIA, CT and DEXA.  

Science.gov (United States)

Obesity was characterized in Korean elementary students using different obesity assessment tests on 103 overweight elementary students from three schools of Jeonbuk Province. The body mass index (BMI) and obesity index (OI) were compared, and the data using DEXA and CT were compared with the data using BIA and a tape measure. The results of this study are as follows: first, 27 students who were classified as obese by OI were classified as overweight by BMI, and 3 students who were classified as standard weight by BMI were classified as overweight by OI. Secondly, by DEXA and BIA measurements, there was 1.51% difference in body fat percentage (boys 1.66%, girls 1.17%) and the difference in body fat mass between boys and girls was 0.77 kg (boys 0.85 kg, girls 0.59 kg), but those differences in body fat percentage and mass were not statistically significant. Thirdly, the average total abdominal fat (TAF) measured by CT scans of obese children was more significantly related with subcutaneous fat (r = 0.983, P BIA seems to be the most simple and effective way to measure body fat mass, whereas waist/hip ratio (WHR) using a tape measurer is considered to be the most effective method for assessing abdominal fat in elementary students. PMID:20461201

Yu, Ok-Kyeong; Rhee, Yang-Keun; Park, Tae-Sun; Cha, Youn-Soo

2010-04-01

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Coproscopical investigations of the European otter (Lutra lutra) from Bia?owieza Primeval Forest.  

Science.gov (United States)

The parasitofauna of the European otter (Lutra lutra) remains poorly known in Poland. In the presented study 106 fecal samples from otters living in the Bia?owieza Primeval Forest were examined, using standard flotation and sedimentation methods. We found that the overall prevalence of parasitic infections was 30.1%. Eggs of Alaria alata (0.9%), Opistorchis or Metorchis sp. (5.7%), Diphyllobothrium latum (1.9%) and Aonchotheca putori (1.9%) were identified, but in other cases the species of parasite could not be reliably determined. Parasitological dissections should give better results in future studies. PMID:20707304

Górski, Pawe?; Zalewski, Andrzej; Kazimierczak, Katarzyna; Kotomski, Grzegorz

2010-01-01

 
 
 
 
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Przebieg ci??y i porodu u pacjentki z ostr? bia?aczk? szpikow?. Opis przypadku  

Directory of Open Access Journals (Sweden)

Full Text Available Szacuje si?, ?e ok. 1/1000 ci?? jest powik?ana wyst?powaniem nowotworu z?o?liwego, z czego najwi?kszyodsetek dotyczy zachorowalno?ci na raka szyjki macicy. Rozpoznanie bia?aczki przypada na ok. 1/100 000 ci??arnychi do dzi? nie ma wystarczaj?cych doniesie? na temat post?powania leczniczego w trakcie ci??y, jak i odleg?egowp?ywu ewentualnych terapii na dzieci urodzone z ci?? obj?tych leczeniem jeszcze za ?ycia p?odowego.Leczenie bia?aczek podczas ci??y jest o wiele trudniejsze z uwagi na fakt konieczno?ci doboru terapii do ka?dejci??y z osobna, uwzgl?dniaj?c zaawansowanie ci??y oraz stan zdrowia zarówno matki, jak i dziecka. Mimokontrowersji, jakie wzbudza zastosowanie chemioterapii u kobiet ci??arnych, to dzi? takie post?powanie wydajesi? najlepszym sposobem leczenia, a negatywne skutki terapii zmniejszaj? si? wraz z wiekiem ci??y.

Micha? Krekora

2011-12-01

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Interventionist Project in the Initial Literacy Block - BIA: “engaging project that brings results in short time”  

Directory of Open Access Journals (Sweden)

Full Text Available This article presents partial findings of a research on assessment in the Initial LiteracyBlock - BIA. It analyzes the possibilities of the Interventionist Project to contribute to theformative assessment in BIA. One hundred projects from different schools in the FederalDistrict were analyzed, as well as perceptions of teachers, coordinators and supervisors.The project stages and singularities are described and it is defended that developingthe project according to the format ive assessment requires individualizationdifferentiation of teaching. Teachers and school coordinators indicated some of thecontributions the project has brought, for instance, the monitoring of student performance.They also mentioned the difficulties it has caused to them. Some of the projectpossibilities have not yet been explored by the schools, for instance: the elimination ofthe remedial studies in their traditional format, and the organization of the non-gradedschool. It was found that one of the major needs of the project is “to be embraced byall teachers and especially to be understood by the school principals and coordinators”.

Benigna Maria de Freitas Villas Boas

2010-07-01

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Zmiany w ekspresji bia?ek reguluj?cych transport wapnia w niewydolno?ci serca  

Directory of Open Access Journals (Sweden)

Full Text Available Skurcz i relaksacja serca zale?y mi?dzy innymi od cyklicznych waha? poziomu wapnia (Ca2+ w cytoplazmie komórki mi??niowej. Podczas relaksacji dochodzi do aktywnego transportu Ca2+ z cytoplazmy, w przewa?aj?cej mierze do siateczki sarkoplazmatycznej (SR, podczas skurczu natomiast do biernego ich uwalniania (g?ównie z SR. W niewydolno?ci serca dochodzi do wielokierunkowych zmian strukturalnych, biochemicznych, energetycznych, jak równie? do zmian w funkcjonowaniu bia?ek reguluj?cych gospodark? wapniow? komórki mi??nia sercowego. Podstawowym zaburzeniem w badaniu pojedynczej komórki mi??niowej izolowanej z serc pacjentów wykazuj?cych ró?nego stopnia niewydolno?? jest znamienne zmniejszenie zarówno szybko?ci fazy skurczu, jak i rozkurczu, koreluj?ce dodatnio ze stopniem niewydolno?ci. Powy?sze patologie stwierdzane w fazie skurczu i rozkurczu t?umaczone s? g?ównie zmianami w obrocie jonami wapniowymi w komórce mi??niowej. W prezentowanej pracy przedstawiono zmiany w ekspresji genów koduj?cych podstawowe bia?ka bior?ce udzia? w gospodarce wapniowej komórki niewydolnego mi??nia sercowego.

Przemys?aw Leszek

2001-12-01

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Evaluation of bioelectrical impedance analysis (BIA) to measure condition and energy allocated to reproduction in marine fishes  

Science.gov (United States)

Reliable estimates of fish energy density at specific times prior to spawning may provide suitable proxies for egg production, and thereby help to explain some of the observed annual variation in recruits per spawner. Our goal is to develop and test modifications of BIA technology to measure energy allocation to reproduction for a variety of marine fishes. To date, a newly developed measuring board and probe system stabilized readings, which was demonstrated by a significant reduction in the coefficients of variation for impedance measures. Total body water, wet and dry weights could be predicted with very good precision (r2 = 0.92-0.99) using BIA measures of reactance or resistance for a number of finfish species. While constituent relationships (e.g. body water- body mass functions) did not differ seasonally, we did find that BIA measures are sensitive to body composition changes related to the seasonal spawning cycle. In an examination of monthly samples of tilefish, phase angle decreased below 15° in post-spawning (regressed) females. Such a monthly trend, which suggests available energy had decreased following the spawning season, was not evident from other, more traditional measures of condition including body-muscle water content, Fulton's K or ordinal measures of fat deposition (such as mesenteric fat). These preliminary results show that BIA technology is a promising application for tracking and efficiently predicting energetic condition of marine fishes.

Fitzhugh, G. R.; Wuenschel, M. J.; McBride, R. S.

2010-04-01

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

Directory of Open Access Journals (Sweden)

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.

?ukasz Figiel

2005-03-01

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Synthesis, microsome-mediated metabolism, and identification of major metabolites of environmental pollutant naphtho(8,1,2-ghi)chrysene  

Energy Technology Data Exchange (ETDEWEB)

Naphtho(8,1,2-ghi)chrysene, commonly known as naphtho(1,2-e)pyrene (N(1,2-e)P) is a widespread environmental pollutant, identified in coal tar extract, air borne particulate matter, marine sediment, cigarette smoke condensate, and vehicle exhaust. Herein, we determined the ability of rat liver microsomes to metabolize N(1,2-e)P and an unequivocal assignment of the metabolites by comparing them with independently,synthesized standards. We developed the synthesis of both the fjord region and the K-region dihydrodiols and various phenolic derivatives for metabolite identification. In summary, N(1,2-e)P trans-11, 12-dihydrodiol was the major metabolite formed along with N(1,2-e)P 4,5-trtins-dihydrodiol and 12-OH-N(1,2-e)P on exposure of rat liver microsomes to N(1,2-e)P. The presence of N(1,2-e)P in the environment and formation of fjord region dihydrodiol 14 as a major metabolite in in vitro metabolism studies strongly suggest the role of N(1,2-e)P as a potential health hazard.

Sharma, A.K.; Gowdahalli, K.; Gimbor, M.; Amin, S. [Penn State College of Medicine, Hershey, PA (United States)

2008-05-15

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St??enie i mikroheterogenno?? bia?ek ostrej fazy u chorych z twardzin? uk?adow?  

Directory of Open Access Journals (Sweden)

Full Text Available St??enie i mikroheterogenno?? bia?ek ostrej fazy (BOF ulegazmianom w ostrych i przewlek?ych stanach zapalnych. Zmianyjako?ciowe niektórych bia?ek ostrej fazy s? okre?lane jako mikroheterogenno??g?ówna. Elektroforeza dwóch kierunków powinowactwaz konkanawalin? A (ConA jako ligandem jest z powodzeniemstosowana do oceny mikroheterogenno?ci glikoproteinostrej fazy. Okre?lenie st??enia i mikroheterogenno?ci BOF mo?eby? u?yteczne we wczesnej diagnostyce i prognozowaniu przewlek?ychprocesów zapalnych, w tym twardziny uk?adowej (TU.Do badania zakwalifikowano 45 pacjentów z TU w ?rednim wieku46,2 roku. Wszyscy chorzy spe?niali kryteria klasyfikacyjne ARA dlarozpoznania twardziny uk?adowej. Grup? kontroln? stanowi?o15 zdrowych ochotników (?redni wiek 42,3 roku.St??enia kwa?nej glikoproteiny (AGP, antychymotrypsyny (ACT,ceruloplazminy (CP by?y okre?lane w surowicy metod? elektroimmunoforezyz u?yciem przeciwcia? anty-AGP, anty-ACT, anty-CP.St??enie bia?ka C-reaktywnego (C-reactive protein – CRP by?ookre?lane metod? radialnej immunodyfuzji z u?yciem przeciwcia?anty-CRP. Mikroheterogenno?? BOF oceniono metod? elektroforezydwóch kierunków z ConA na ?elu agarazowym, jak opisywa?Bo/g-Hansen. W grupie chorych z TU obserwowano zwi?kszeniest??enia kilku z badanych bia?ek ostrej fazy (AGP, CRP, CP. Umiarkowanezwi?kszenie st??enia CRP, AGP, CP obserwowano u 50%chorych z twardzin? uk?adow?, u których stwierdzono zapaleniestawów oraz owrzodzenia skóry. Bardzo du?e zwi?kszenie st??eniabia?ek ostrej fazy wyst?powa?o w grupie pacjentów z zaj?ciemserca i p?uc. Mikroheterogenno?? BOF by?a zmieniona u badanychchorych i wykazywa?a zmienne, niejednoznaczne obrazy. Wynikipotwierdzaj? obecno?? zmian w odpowiedzi ostrej fazy u chorychz twardzin? uk?adow?.

Izabela Domys?awska

2010-12-01

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

Digital Repository Infrastructure Vision for European Research (DRIVER)

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...

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

2013-01-01

49

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

Directory of Open Access Journals (Sweden)

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.

Barbara Sikorska-Fic

2004-09-01

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PHYSICAL ACTIVITY AND LEISURE TIME AMONG 13-15-YEAR-OLD TEENAGERS LIVING IN BIA?A PODLASKA  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The aim of the research was to get information about physical activity and forms of spending leisure time by teenagers between 13 and 15 years old, who live in Bia?a Podlaska. The research included 229 pupils from three Grammar Schools (115 girls and 114 boys). The range of respondents’ age is from 13 to 15 years old. The research tool was anonymous questionnaire consisting of questions concerning healthy lifestyle, physical activity and forms of spending leisure time. In total, the questi...

Grad Rafa?

2013-01-01

51

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

Science.gov (United States)

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 (? 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.

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

2013-04-01

52

Ró?nice w obrazie klinicznym jelitowej ucieczki bia?ka oraz u?yteczno?? alfal-antytrypsyny w diagnostyce i monitorowaniu leczenia  

Directory of Open Access Journals (Sweden)

Full Text Available Jelitowa ucieczka bia?ka (protein-losing enteropathy - PLE jest objawem wielu chorób, zarówno przewodu pokarmowego, jak i chorób ogólnoustrojowych. Przedstawiamy grup? 6 dzieci z jelitow? ucieczk? bia?ka na pod?o?u ró?nych chorób: wrodzonego zespo?u naczynia-kowato?ci limfatycznej, choroby Le?niowskiego-Crohna oraz po operacji kardiochirurgicznej. Jelitowa ucieczka bia?ka zosta?a rozpoznana na podstawie oznaczenia alfal-antytrypsyny (alfa1-AT w kale. Przedmiotowo objawia?a si? ona obrz?kami o ró?nej lokalizacji i nasileniu, a w badaniach laboratoryjnych hipoproteinemi?z hipoalbuminemi?, a tak?e hipokalcemi?. W badanej grupie chorych zaobserwowano korelacj? mi?dzy nasileniem zmian chorobowych a poziomem alfal-antytrypsyny w kale oraz u?yteczno?? jej oznaczania w monitorowaniu leczenia.

Piotr Socha

2005-09-01

53

BIA interpretation techniques for vegetation mapping using thematic mapper false color composites (interim report for San Carlos Reservation)  

Science.gov (United States)

The Bureau of Indian Affairs (BIA) is responsible for the natural resource management of approximately 52 million acres of Trust lands in the contiguous United States. The lands are distributed in a "patchwork" fashion throughout the country. Management responsibilities on these areas include: minerals, range, timber, fish and wildlife, agricultural, cultural, and archaeological resources. In an age of decreasing natural resources and increasing natural resource values, effective multiple resource management is critical. BIA has adopted a "systems approach" to natural resource management which utilizes Geographic Information System (GIS) technology. The GIS encompasses a continuum of spatial and relational data elements, and included functional capabilities such as: data collection, data entry, data base development, data analysis, data base management, display, and report generalization. In support of database development activities, BIA and BLM/TGS conducted a cooperative effort to investigate the potential of 1:100,000 scale Thematic Mapper (TM) False Color Composites (FCCs) for providing vegetation information suitable for input to the GIS and to later be incorporated as a generalized Bureau wide land cover map. Land cover information is critical as the majority of reservations currently have no land cover information in either map or digital form. This poster outlines an approach which includes the manual interpretation of land cover using TM FCCs, the digitizing of interpreted polygons, and the editing of digital data, used upon ground truthing exercises. An efficient and cost-effective methodology for generating large area land cover information is illustrated for the Mineral Strip area on the San Carlos Indian Reservation in Arizona. Techniques which capitalize on the knowledge of the local natural resources professionals, while minimizing machine processing requirements, are suggested.

Bonner, W. J.; English, T. C.; Haas, R. H.; Feagan, T. R.; McKinley, R. A.

1987-01-01

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Metody badania autofagii oparte na przemianach bia?ek MAP1LC3 i p62/SQSTM1   

Directory of Open Access Journals (Sweden)

Full Text Available Autofagia jest procesem katabolicznym o fundamentalnym znaczeniu dla przetrwania okresów niedoborów sk?adników od?ywczych i w recyklingu organelli komórkowych. W ostatnim czasie obserwuje si? bardzo znacz?cy wzrost zainteresowania badaniem autofagii, a zaburzenia w jej przebiegu towarzysz? wielu chorobom. Niestety, warsztat jakim dysponujemy w badaniu autofagii pozostaje stosunkowo ma?o znany i ubogi. W pracy omówiono najcz??ciej stosowane metody badania autofagii. Oprócz mikroskopii elektronowej przedstawiono metody (fluorescencyjnei Western blotting oparte na obserwacji przemian bia?ek MAP1LC3 i p62/SQSTM – nale??cych do podstawowych markerów autofagii.

Edyta Wysoki?ska,

2013-05-01

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Inwazyjna aspergiloza p?ucna z towarzysz?cym infekcyjnym zapaleniem wsierdzia u 8-letniego ch?opca w przebiegu leczenia ostrej bia?aczki szpikowej  

Digital Repository Infrastructure Vision for European Research (DRIVER)

W pracy przedstawiono przypadek 8-letniego pacjenta leczonego w Klinice Onkologii i Hematologii Dzieci?cej UM w Bia?ymstoku od listopada 2008 r. z powodu ostrej bia?aczki szpikowej. Okres trwaj?cej 25 dni neutropenii pochemioterapii u pacjenta powik?any by? inwazyjn? aspergiloz? p?uc z wtórnym zaj?ciem wsierdzia przez proces infekcyjny. Po 3-miesi?cznym leczeniu przeciwgrzybiczym dosz?o do znacznej regresji zmian zapalnych p?uc. Wci?? utrzymuj? si? du?e wegetacje w obr?bie...

2009-01-01

56

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

Science.gov (United States)

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.

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

2013-07-01

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

CERN Document Server

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.

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

2013-01-01

58

Ocena poziomu poszczególnych komórek uk?adu bia?okrwinkowego u chorych z ostrym ?ó?ciopochodnym zapaleniem trzustki po przebytej wcze?niej cholecystektomii we wczesnym okresie choroby  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Wprowadzenie: Poza kilkoma doniesieniami brak jest prac opisuj?cych przebieg ostrego zapalenia trzustki (o.z.t.) u chorych po przebytej wcze?niej cholecystektomii. Brakuje równie? informacji o sposobie leczenia takich chorych. Jedn? z metod monitorowania procesu zapalnego w o.z.t. jest pomiar poziomu poszczególnych komórek uk?adu bia?okrwinkowego. Cel pracy: Porównanie ?rednich poziomów oraz zmian w czasie poszczególnych elementów uk?adu bia?okrwinkowego w dwóch grupach chory...

2006-01-01

59

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

Digital Repository Infrastructure Vision for European Research (DRIVER)

The fully automated observatory for total greenhouse gas (GHG) column measurements introduced here complements the in-situ facilities at the Bia?ystok site in Poland. With the automated Fourier Transform Spectrometer (FTS), solar absorption measurements have been recorded nearly continuously since March 2009. In this article the automation system, including the hardware components and the automation software will be described in its basics. Furthermore the first comparison of the FTS dataset...

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

2011-01-01

60

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

Digital Repository Infrastructure Vision for European Research (DRIVER)

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, simulation...

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

2012-01-01

 
 
 
 
61

Water Quality from Mangrove Forest: The King’s Royally Initiated Laem Phak Bia Environmental Research and Development Project, Phetchaburi Province, Thailand  

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The study was aimed to study water quality treated by mangrove forest. This study has been conducted at the mangrove forest site of the King’s Royally Initiated Laem Phak Bia Environmental Research and Development Project (the Royal LERD Project), Ban Laem District, Phetchaburi Province, Thailand. The study site, where Avicennia marina is dominant plant, is divided into in 3 areas; (A) the tideland area between constructed pond and mangrove forest, 200 meters from outlet (B) area of mangrov...

Orathai Jitthaisong; Pricha Dhanmanonda; Kasem Chunkao; Sakhan Teejuntuk

2012-01-01

62

Wp?yw probiotycznych szczepów Lactobacillus casei i paracasei na przebieg kliniczny wyprysku atopowego u dzieci z alergi? pokarmow? na bia?ka mleka krowiego  

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Wst?p: Probiotyki, tj. ?ywe bakterie niepatogenne, wykazuj? korzystny wp?yw na zdrowie gospodarza. Bakterie probiotyczne mog? wspomaga? leczenie chorób alergicznych oraz wp?ywa? na rozwój procesu alergicznego u osób z predyspozycj? genetyczn?. Cel pracy: Ocena wp?ywu nowych szczepów probiotycznych z gatunku Lactobacillus casei i paracasei na przebieg kliniczny wyprysku atopowego (WA) u dzieci z alergi? pokarmow? na bia?ka mleka krowiego. Materia? i metodyka: Badaniem przepr...

2008-01-01

63

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

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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.

Leon Mejnartowicz

1996-12-01

64

The occurrence of parasitic arthropods in two groups of European bison in the Bia?owieza primeval forest.  

Science.gov (United States)

Within 1992-2000, a total of 181 Bia?owieza Forest bison were examined from two winter herds. Twelf parasitic arthropod species were observed, a high infestation being typical of Demodex bisonianius, Chorioptes bovis, Ixodes ricinus, Dermacentor reticulatus, and Bisonicola sedecimdecembrii. The infestation in section 422 herd being higher for B. sedecimdecembrii, I. ricinus, D. reticulatus, Ch. bovis. D. bisonianus was slightly more prevalent in the section 391 herd, the intensity being, however, lower than that in the other herd. Among the remaining arthropods found in the Bialowieza Forest European bison, some Lipoptena cervi occurred in both herds, Demodex sp. and Sarcoptes scabiei were recorded only in the section 422 herd, Ixodes persulcatus was present only in the section 391 bison and those kept in the reservation, while D. bovis, Psoroptes ovis, and Melophagus ovinus were found in the reserve bison only. In the present study, the largest differences in the extent of infestation involved the hair-dwelling arthropods (B. sedecimdecembrii, I. rixinus). PMID:16886430

Izdebska, J N

2001-01-01

65

Bia?ko kationowe eozynofilów (ECP jako marker nadwra?liwo?ci oskrzeli u dzieci do lat 4  

Directory of Open Access Journals (Sweden)

Full Text Available Pomiary st??enia ECP w surowicy i innych p?ynach ustrojowych wydaj? si? racjonalnym sposobem rozpoznawania alergicznych reakcji zapalnych i kontrolowania ich aktywno?ci oraz oceny stosowania odpowiedniego leczenia przeciwzapalnego. Celem niniejszej pracy by?a ocena przydatno?ci oznaczania kationowego bia?ka eozynofilów (ECP jako markera zapalenia i nadwra?liwo?ci oskrzeli u niemowl?t i ma?ych dzieci ztzw. obturacyjnym zapaleniem oskrzeli. Badania obj??y 49 niemowl?t i ma?ych dzieci z pierwszym lub kolejnym incydentem obturacji oskrzeli. Oznaczono st??enie ECP, ca?kowity poziom IgE i IgE swoistych oraz eozynofili? bezwzgl?dn? we krwi obwodowej. Przeprowadzone badania wykaza?y, ?e warto?ci ECP, niezale?nie od obecno?ci klinicznych i laboratoryjnych wyk?adników atopii, nie koreluj? z ostr? faz? choroby. D?ugotrwa?e utrzymywanie si? podwy?szonych warto?ci ECP w stosunku do wyj?ciowych u 28 dzieci (57,1 % mo?e wskazywa? na przetrwa?? w okresie bezo-bjawowym nadwra?liwo?? oskrzeli i by? wyk?adnikiem pomocnym w kwalifikowaniu dzieci do grupy nadzoru specjalistycznego.

Krystyna W?sowska-Królikowska

2001-09-01

66

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

Science.gov (United States)

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

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

2011-01-01

67

Rola bia?ka AS160/TBC1D4 w transporcie glukozy do wn?trza miocytów[i][/i  

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Full Text Available Mi??nie szkieletowe to jedne z najwa?niejszych tkanek uczestnicz?cych w utrzymaniu homeostazy glukozy ca?ego organizmu. Glukoza przenika do komórek mi??niowych na zasadzie dyfuzji u?atwionej, zachodz?cej z udzia?em transporterów glukozy (GLUT. Stymulacja insulinowego (zwi?zanego z aktywacj? 3-kinazy fosfatydyloinozytolu – PI3K b?d? te? niezale?nego od insuliny (zwi?zanego z aktywacj? kinazy zale?nej od AMP – AMPK szlaku przeka?nictwa sygna?u uruchamia kaskad? reakcji prowadz?c? do translokacji GLUT-4 do b?ony komórkowej, a w konsekwencji do wzrostu wychwytu glukozy w miocytach. W prowadzonych ostatnio badaniach wykazano, ?e bezpo?rednio w proces translokacji GLUT-4 jest zaanga?owane bia?ko sygna?owe okre?lane jako AS160 – substrat Akt o masie cz?steczkowej 160 kDa. Bia?ko to prawdopodobnie jest ogniwem ??cz?cym szlak insulinowy ze szlakiem zale?nym od aktywacji kinazy AMPK. Badania potwierdzaj?, i? fosforylacja AS160 ulega wzmo?eniu zarówno pod wp?ywem stymulacji insulin?, jak te? podczas wysi?ku fizycznego, co wskazuje na ich addytywn? zale?no??. W mi??niach szkieletowych osób z oporno?ci? na insulin? i/lub cukrzyc? typu 2 dochodzi do znacznego obni?enia zale?nej od insuliny fosforylacji bia?ka AS160 i spadku translokacji do b?ony GLUT-4. St?d te? zmniejszony poziom insulinozale?nej fosforylacji AS160 mo?e odgrywa? istotn? rol? w oporno?ci na insulin?[i] in vivo[/i].

Agnieszka Mik?osz

2011-01-01

68

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

Directory of Open Access Journals (Sweden)

Full Text Available 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.

J. Messerschmidt

2012-08-01

69

Równoczesna ocena st??enia eozynofilowego bia?ka kationowego i eozynofili krwi obwodowej w czasie dodatnich prób prowokacji pokarmowych  

Directory of Open Access Journals (Sweden)

Full Text Available Wprowadzenie: U dzieci z IgE-zale?n? alergi? pokarmow? w czasie dodatnich DBPCFC w miejscu reakcji alergicznej dochodzi do akumulacji i aktywacji eozynofilów. Cel pracy: Sprawdzenie, czy zjawiska te mo?na ?ledzi? poprzez pomiar w surowicy krwi eozynofilii krwi obwodowej, EOS (marker wzrostu syntezy eozynofilów i eozynofilowego bia?ka kationowego, ECP (marker aktywacji eozynofilów. Materia? i metodyka: Oznaczenia wykonano w czasie 18 DBPCFC (pszenica -16, ?yto - 1, kukurydza - 1, które przeprowadzono u 18 dzieci z IgE-zale?n? alergi? na ziarna zbó? (5 dziewczynek, 13 ch?opców w wieku 2,5-14 lat, ?rednio 5 lat. Reakcje niepo??dane wyst?puj?ce w DBPCFC obejmowa?y objawy z przewodu pokarmowego i skóry; wjednym przypadku wstrz?s anafilaktyczny. St??enie ECP i wielko?? EOS oznaczano w czasie 0 h, 2 h, 24 h, 48 h, 14 dni. Rozpoznanie IgE-zale?nej alergii pokarmowej postawiono na podstawie dodatniej natychmiastowej DBPCFC u dzieci z dodatnimi markerami atopii (sIgE>0,7kU/L oznaczane w systemie CAP, Pharmacia. St??enie ECP oznaczano metod? FEIA (Pharmacia, EOS metodami rutynowymi. Istotno?? ró?nic pomi?dzy badanymi parametrami oceniano testem Ko?mogorova-Smirnova. Wyniki: Przed prowokacj? mediana st??enia ECP wynosi?a 7,3 ug/L (2,3-20,9 ug/L, a liczba EOS: 338,5x106/L (87,0-643,0x106/L. W 2 h po dodatniej DBPCFC liczba EOS by?a istotnie ni?sza (p<0,001, a ECP istotnie wy?sza (p<0,001 w stosunku do warto?ci sprzed prowokacji. Po 24 h od prowokacji liczba EOS by?a wy?sza od warto?ci sprzed prowokacji (p<0,001; nie zmienia?a si? przez 14 dni. W 24 h godzinie od prowokacji st??enie ECP by?o istotnie ni?sze ni? w 2 h (p<0,001, ale istotnie wy?sze ni? przed prowokacj? (p<0,001. Wniosek: Pomiar w surowicy krwi st??enia ECP i liczby EOS jest przydatny w ocenie wzrostu syntezy i aktywacji eozynofilów w czasie dodatniej DBPCFC.

Gra?yna Czaja-Bulsa

2002-09-01

70

Ekspresja kinazy Jak3 i aktywacja bia?ka Stat3 u chorych na reumatoidalne zapalenie stawów i spondyloartropatie zapalne  

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Full Text Available Wst?p: Uk?ad przeka?nikowy Jak/Stat (kinaza tyrozynowaJanus/sygna? transdukcji i aktywacji transkrypcji jest wykorzystywanyprzez wiele cytokin, czynników wzrostu i hormonów reguluj?cychmechanizmy transkrypcji genów oraz aktywacji, proliferacji,ró?nicowania i apoptozy komórek. Wyniki dotychczasowych bada?wskazuj?, ?e kinaza Jak3 odgrywa istotn? rol? w patogeneziereumatoidalnego zapalenia stawów (RZS. Cel pracy: Ocena ekspresji Jak3 oraz aktywacji Stat3 w leukocytachkrwi obwodowej (LKO i komórkach p?ynu stawowego (KPSu chorych na RZS i spondyloartropatie zapalne (SpaZ oraz analizazwi?zku badanych parametrów ze wska?nikami aktywno?ci chorobyu?ywanymi w praktyce klinicznej. Ponadto analizie poddanozale?no?ci mi?dzy ekspresj? Jak3 a aktywacj? Stat3. Materia? i metody: Do badania zakwalifikowano 19 chorych na RZSoraz 22 chorych na SpaZ (zesztywniaj?ce zapalenie stawów, ?uszczycowezapalenie stawów, spondyloartropatia niezró?nico wana.Grup? kontroln? stanowi?y 23 zdrowe osoby. W badanych grupachw LKO metod? immunocytochemiczn? oznaczono ekspresj? kinazyJak3 i aktywacj? bia?ka Stat3. T? sam? metod? oznaczono ekspresj?Jak3 i aktywacj? Stat3 u 11 chorych na RZS i u 12 chorych na SpaZw KPS. U chorych zosta?y oznaczone warto ?ci parametrów stanuzapalnego oraz wska?ników aktywno?ci choroby DAS28 i BASDAI.Wykonano rentgenogramy stawów zaj?tych procesem chorobowym. Wyniki: Ekspresja Jak3 oraz aktywacja Stat3 by?y znacz?co wy?szeu chorych na RZS i SpaZ w porównaniu z grup? kontroln?. War to -?ci te by?y wy?sze w KPS ni? w LKO. U chorych na RZS zaobserwowanododatni? korelacj? mi?dzy aktywno?ci? Stat3 w KPSa warto?ci? CRP. Nie wykazano korelacji mi?dzy ekspresj? Jak3a aktywacj? Stat3. Wnioski: Funkcja Jak3 i Stat3 jest zwi?zana z procesem immunolo -gicznym w przebiegu RZS i SpaZ. Wydaje si?, ?e zablokowanie ichfunkcji mo?e stanowi? cel terapeutyczny w obydwu grupach chorych.

Andrzej Steciwko

2010-08-01

71

Analiza zaka?e? grzybiczych u chorych na ostre bia?aczki (AL. Cz??? II. Lokalizacja narz?dowa zmian zapalnych z uwzgl?dnieniem zmian grzybiczych. Cz?sto?? infekcji grzybiczych w zale?no?ci od rodzaju ostrej bia?aczki wg klasyfikacji FAB. Przyczyny zgonu  

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Full Text Available Wprowadzenie: Grzybica wyst?puje ?rednio u 25% zmar?ych na ostr? bia?aczk?. Cel pracy: Celem pracy by?o ustalenie: 1 jaka jest lokalizacja narz?dowa zmian zapalnych, w tym grzybiczych, 2 która z grup ostrej bia?aczki wg FAB jest najbardziej podatna na zaka?enie grzybicze oraz 3 jaki jest udzia? zaka?e? grzybiczych w przyczynie zgonu chorych. Materia? i metody: Materia? badany stanowi?o 140 chorych na ostr? bia?aczk? (70 kobiet i 70 m??czyzn w wieku 16-70 lat, podzielonych wg FAB (M0-11, M1-22, M2-25, M3-3, M4-22, M5-8, L1-20, L2-22, L3-1. U chorych w czasie indukcji remisji stosowano profilaktycznie doustne leki przeciw-grzybicze. W czasie trwania choroby analizowano lokalizacj? i etiologi? stanu zapalnego w oparciu o badania mikologiczne i bakteriologiczne. U 123 zmar?ych przyczyn? zgonu ustalono na podstawie objawów klinicznych przed zgonem i na podstawie badania patomorfologicznego. Wyniki: Na podstawie obserwacji klinicznej oraz bada? mikologicznych i bakteriologicznych stwierdzono, i? w trakcie choroby zmiany zapalne najcz??ciej dotyczy?y uk?adu pokarmowego, uk?adu oddechowego i moczowego. Zaobserwowano, ?e na pocz?tku choroby przewa?a?y zaka?enia górnych dróg oddechowych, a w przebiegu choroby wzros?a liczba zapale? p?uc. Infekcje w zakresie uk?adu moczowego cechowa?y si? brakiem znamiennej dla osób zdrowych leukocyturii. Na podstawie wyst?powania zaka?e? grzybiczych nie stwierdzono, by grupy ró?ni?y si? liczb? infekcji grzybiczych. Dopiero przy u?yciu metody Poissona, ujawniono, i? najwi?ksz? cz?sto?? wyst?powania infekcji grzybiczych wykazuje grupa M5, M1 i M4 wg FAB. Zgon u 2/3 osób dotyczy? chorych w agranulocytozie. U 12% zmar?ych wykazano udzia? infekcji grzybiczej (10 osób z kandydoz? i 1 z aspergiloz?. Wnioski: Lokalizacja zmian grzybiczych najcz??ciej dotyczy?a uk?adu pokarmowego i oddechowego. Funguria mo?e by? wynikiem zmian zapalnych w uk?adzie moczowym lub zmian zapalnych w innych narz?dach i stanowi form? eliminacji grzybów z ustroju, zw?aszcza w agranulocytozie; nie przebiega z leukocyturi?. Cz?sto?? wyst?powania infekcji grzybiczych jest najwi?ksza w bia?aczkach M5.

Jadwiga Nowicka

2004-09-01

72

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

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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.

Camila Negreiros Comodo

2011-01-01

73

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

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Full Text Available The fully automated observatory for total greenhouse gas (GHG column measurements introduced here complements the in-situ facilities at the Bia?ystok site in Poland. With the automated Fourier Transform Spectrometer (FTS, solar absorption measurements have been recorded nearly continuously since March 2009. In this article the automation system, including the hardware components and the automation software will be described in its basics. Furthermore the first comparison of the FTS dataset with the collocated in-situ measurements and the first comparison of the Jena CO2 inversion model are presented. This model identifies monthly variations in the total CO2 column and the seasonal amplitude is in good agreement with the FTS measurements.

J. Messerschmidt

2011-12-01

74

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

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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.

Jouni Paavola

2012-03-01

75

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)  

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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...

Barbara Bo??tka

2012-01-01

76

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

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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.

Anna Rosi?ska

2007-03-01

77

Wp?yw probiotycznych szczepów Lactobacillus casei i paracasei na przebieg kliniczny wyprysku atopowego u dzieci z alergi? pokarmow? na bia?ka mleka krowiego  

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Full Text Available Wst?p: Probiotyki, tj. ?ywe bakterie niepatogenne, wykazuj? korzystny wp?yw na zdrowie gospodarza. Bakterie probiotyczne mog? wspomaga? leczenie chorób alergicznych oraz wp?ywa? na rozwój procesu alergicznego u osób z predyspozycj? genetyczn?. Cel pracy: Ocena wp?ywu nowych szczepów probiotycznych z gatunku Lactobacillus casei i paracasei na przebieg kliniczny wyprysku atopowego (WA u dzieci z alergi? pokarmow? na bia?ka mleka krowiego. Materia? i metodyka: Badaniem przeprowadzonym w sposób randomizowany, podwójnie za?lepiony, ??cznie z grup? kontroln? obj?­to 60 dzieci z WA w wieku do 24 miesi?ca ?ycia. Dzieciom podawano doustnie mieszanin? 3 szczepów: Lactobacillus casei LOCK 0900, Lactobacillus casei LOCK 0908 i Lactobacillus paracasei LOCK 0919 przez okres 3 miesi?cy w dawce dziennej 109 komórek. Grupa kontrolna otrzyma?a no?nik bakterii, tj. hydrolizat kazeiny. Stan kliniczny dzieci oceniono w skali SCORAD (ang. Scoring Atopic Dermatitis przed rozpocz?ciem kuracji, po zako?czeniu oraz po 5-ciu miesi?cach obserwacji. Wyniki: Tylko u dzieci z WA IgE-zale?nym podanie probiotyków wp?ywa?o na znamienn? statystycznie popraw? przebiegu choroby. Poprawa stanu klinicznego po 3 miesi?cach leczenia by?a obserwowana u 93% dzieci przyjmuj?cych probiotyki, podczas gdy w grupie kontrolnej u 54% (p=0,0329. Po dalszych 5 miesi?cach obserwacji odsetek dzieci wykazuj?cych popraw? w grupie kontrolnej zwi?k­szy? si? do 85%, natomiast w grupie badanej wynosi? 93% (p=0,079. Wnioski: Nasze badania pokazuj?, ?e szczepy Lactobacullus casei i paracasei poprawiaj? stan kliniczny pacjentów z WA, ale tylko u dzieci z alergi? IgE-zale?n?.

Bo?ena Cukrowska

2008-06-01

78

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

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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 wyn...

2009-01-01

79

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  

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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.

Barbara Bo??tka

2012-01-01

80

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)  

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Full Text Available SciELO Chile | Language: English Abstract in spanish 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.

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

 
 
 
 
81

Generalized GHY term for f(R) Gravity  

CERN Multimedia

A generalization to the Gibbons-Hawking-York boundary term for metric $f(R)$ gravity theories is introduced. A redefinition of the Gibbons-Hawking-York term is proposed. The proposed new definition is used to derive a consistent set of field equations and is extended to metric $f(R)$ gravity theories. The surface terms in the action are gathered into a total variation of some quantity. A total divergence term is added to the action to cancel these terms. Finally, the new definition is proven to demand no restrictions on the value of ${\\delta g}_{ab}$ or ${\\partial}_{c}{\\delta g}_{ab}$ on the boundary.

Alhamzawi, Ahmed

2014-01-01

82

Niedo?ywienie a uk?ad odporno?ciowy – charakterystyka fenotypowa limfocytów krwi obwodowej a zawarto?? interleukiny-12 w surowicy u dzieci z niedo?ywieniem bia?kowo-kalorycznym  

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Full Text Available Wprowadzenie: Niedo?ywienie bia?kowo-kaloryczne (NB-K obni?a odporno?? zwi?zan? z reakcj? immunologiczn? typu komórkowego. Ogranicza bowiem procesy proliferacji i dojrzewania limfocytów. Kluczow? rol? w tych procesach odgrywa interleukina-12 (IL-12. Cel pracy: Zbadanie mechanizmów, poprzez które NB-K wp?ywa na uk?ad odporno?ciowy u dzieci. Materia? i metodyka: U 50 dzieci z NB-K przeprowadzono badanie podmiotowe i przedmiotowe. Metod? rutynow? badano morfologi? krwi a metod? cytometrii przep?ywowej – liczebno?? populacji limfocytów T (CD3+, LB (CD19+, LTh (CD4+, LTc/s (CD8+, aktywnych LT (CD3+HLA DR+ i komórek NK (CD56+. Ponadto metod? ELISA oznaczono zawarto?? w surowicy IL-12 Wyniki: Masa cia?a i wska?nik wzgl?dnej masy cia?a (BMI – body mass index by?y obni?one poni?ej 3 centyla u 49 dzieci a mi?dzy 3 a 10 centylem u 1 dziecka. U 38% dzieci stwierdzono obni?enie ca?kowitej liczby limfocytów we krwi. Badanie cytometryczne wykaza?o redukcj? liczebno?ci populacji LB u 56% dzieci, LT u 52%, LT CD8+ u 56%, LT CD4+ u 36%, natomiast LT HLA DR+ w 74% przypadków, a komórek NK u 62% dzieci. Stwierdzono znamienn? statystycznie dodatni? korelacj? mi?dzy zawarto?ci? IL-12 w surowicy a ca?kowit? liczb? LT we krwi oraz liczebno?ci? poszczególnych subpopulacji LT (r=0,41 do 0,54, p<0,05. Wnioski: 1. U dzieci z NB-K stwierdza si? zmniejszenie liczebno?ci poszczególnych populacji limfocytów krwi obwodowej; mo?e to mie? zwi?zek z deficytem odporno?ci, zw?aszcza typu komórkowego. 2. W stanach NB-K istnieje korelacja mi?dzy zawarto?ci? IL-12 w surowicy a liczebno?ci? populacji limfocytów krwi obwodowej.

Krzysztof Marek

2004-03-01

83

Zaka?enia grzybami dro?d?opodobnymi wyst?puj?ce na Oddziale Urologicznym Samodzielnego Publicznego Zak?adu Opieki Zdrowotnej Wojewódzkiego Szpitala Zespolonego w Bia?ymstoku  

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Full Text Available Cel pracy: Prezentacja patogenów najcz??ciej wywo?uj?cych grzybicze zaka?enia dróg moczowych u pacjentów poddawanych zabiegom endourologicz-nym i przewlek?emu cewnikowaniu oraz ocena ich lekowra?liwo?ci. Materia? i metody: Badaniem obj?to 1682 pacjentów hospitalizowanych na Oddziale Urologii Samodzielnego Publicznego ZOZ-u Wojewódzkiego Szpitala Zespolonego w Bia?ymstoku w roku 1999, b?d?cych po zabiegu endourologicznym, u których istnia?a konieczno?? za?o?enia na sta?e cewnika do p?cherza moczowego. Badaniu mikologicznemu poddano materia? pobrany z rany pooperacyjnej, ropy, moczu oraz wymazy z pochwy. Uzyskane hodowle grzybów identyfikowano wed?ug standardowych procedur mikologicznych. Do oceny lekowra?liwo?ci grzybów u?yto testu ATB FUNGUS. Wyniki: Ogó?em wyizolowano 276 szczepów grzybów dro?d?opodobnych, co stanowi?o 16,4% wszystkich szczepów hodowanych w tym okresie na Oddziale Urologicznym. Z materia?u pobranego od chorych izolowano w 82,6% szczepy Candida albicans w 12,3% Candida tropicalis, w 1,81% Can-dida krusei, w 1,45% Candida glabrata i Candida famata oraz w 0,36% Candida species. Grzyby dro?d?opodobne wyhodowano w 44,2% z moczu, w 28,9% z ran pooperacyjnych oraz w 22% z pochwy. Wszystkie badane szczepy by?y wra?liwe na nystatyn?, mikonazol, ekonazol i ketokonazol oraz oporne na 5-fluorocytozyn?. Jedynie 2 izolaty Candida tropicalis wykazywa?y oporno?? na azolowe chemioterapeutyki przeciwgrzybicze. Wnioski: 1. Grzybicze zaka?enia uk?adu moczowego stanowi? do?? wysoki odsetek zaka?e? na Oddziale Urologicznym. 2. Dominuj?cym czynnikiem etiologicznym by? Candida albicans i Candida tropicalis. 3. Grzyby dro?d?opodobne izolowano g?ównie z moczu pacjentów. 4. Stwierdzono wysok? wra?liwo?? badanych szczepów na chemioterapeutyki przeciwgrzybicze.

Jolanta Lewko

2001-03-01

84

Wp?yw wieku, p?ci oraz modyfikacji protoko?ów leczniczych na rozwój fizyczny dzieci i m?odzie?y po zako?czonym leczeniu ostrej bia?aczki limfoblastycznej  

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Full Text Available Celem pracy by?o longitudinalna ocena rozwoju fizycznego dzieci leczonych w przesz?o?ci z powodu ostrej bia?aczki limfoblastycznej (ALLAnaliz? przeprowadzono w grupie 76 pacjentów (51 dziewczynek, z których 63 zachorowa?o przed pokwitaniem.Terapi? prowadzono zgodnie z protoko?ami BFM. 27 pacjentów otrzyma?o profilaktycznie napromienianieoun dawk? 12 Gy, u 63 zastosowano metotreksat w dawce 5 g/m2, a u 13 –1 g/m2. Oceniono wzrost i indeks masy cia?a w odniesieniu do warto?ci ?rednich wiekowych (SDS w momencie zachorowania (H1 SDS, BMI1 SDS, po zako?czeniu leczenia (H2 SDS, BMI2 SDS i po up?ywie 1,7?3,13 roku od zako?czenia terapii (H3 SDS, BMI3 SDS.Wyniki: 1. W ca?ej grupie po zako?czeniu leczenia warto?ci BMI2 SDS wzros?y w porównaniu do BMI1 SDS (p=0,0000001, a nast?pnie BMI3 SDS nieznacznie ulega?y obni?eniu, aczkolwiek by?y wy?sze ni? w momenciezachorowania. 2. U ch?opców stwierdzono przyrost BMI SDS bezpo?rednio po leczeniu (p=0,00006,a nast?pnie obni?enie (p=0,04 – tak ?e mi?dzy BMI1 SDS a BMI3 SDS nie by?o ró?nic. 3. U dziewcz?t wzrostBMI2 SDS w porównaniu do BMI1 SDS (p=0,007 utrzymywa? si? po zako?czeniu leczenia (p=0,05 mi?dzyBMI1 SDS a BMI3 SDS. 4. Wzrost, a nast?pnie obni?enie warto?ci BMI SDS obserwowano w?ród dzieci, które zachorowa?y przed okresem pokwitania. Zachorowanie w okresie pokwitania powodowa?o natomiast przej?ciowy wzrost BMI SDS (p=0,03, za? BMI3 SDS po up?ywie czasu nie ró?ni?o si? od BMI1 SDS. 5. Zwi?kszenie BMI2 SDS po zako?czeniu leczenia stwierdzono u dzieci leczonych tylko cytostatykami.W grupie, w której zastosowano równie? radioterapi? oun nast?pi? przyrost BMI2 SDS (p=0,02, a nast?pnie obni?enie BMI3 SDS (p=0,007; nie by?o ró?nic mi?dzy BMI1 SDS a BMI3 SDS. 6. W grupie leczonej metotreksatem w dawce 5 g/m2 zaobserwowano przyrost BMI2 SDS i BMI3 SDS w porównaniu do BMI1SDS (odpowiednio p=0,00001 i p=0,0004. W grupie leczonej metotreksatem 1 g/m2 stwierdzono ni?sze warto?ci BMI3 SDS w porównaniu do BMI2 SDS (p=0,01 oraz BMI SDS (p=0,006. 7. Nie zaobserwowanoistotnych zmian w tempie przyrostu d?ugo?ci cia?a zarówno w trakcie leczenia, jak i po jego zako?czeniu.Wnioski: 1. Leczenie przeciwnowotworowe ALL przyczynia si? do przyrostu masy cia?a, które utrzymuje si? po zako?czeniu terapii, zw?aszcza u dziewcz?t. 2. Tempo wzrastania, w tym po zastosowaniu napromieniania oun dawk? 12 Gy, nie ulega istotnym zaburzeniom.

Maryna Krawczuk-Rybak

2003-03-01

85

The experimental use of a statistical algorithm and GIS for detecting the spatial reach of the impact of a dam reservoir on the development of a river channel. The case of the Dunajec and the Bia?ka rivers, the Polish Carpathians  

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The determination of the spatial reach of the impact of dam reservoirs on the development of river channels is a key issue in fluvial geomorphology, river engineering and ecology. Until now the impact of dam reservoirs on river channels above these structures has been poorly explored. In particular, there has been no answer to the question: What is the spatial reach of changes in a river channel above a dam reservoir? and Is the reach of these changes broader than the reach of the backwater itself? To answer these questions, a statistical algorithm searching for channel sections homogeneous with respect to a given parameter and the threshold values between them was experimentally used in this paper. The study was conducted on the example of the channels of two rivers (the Dunajec and the Bia?ka) flowing into the Czorszty?ski Reservoir (CR) (Polish Carpathians) built in 1997. Information on the width, the average annual migration rate of a channel and the erosion and lateral accumulation in the river channel was used as input parameters. This information was collected using GIS software from 5 sets of orthophoto maps and georectified aerial photographs taken before (1977, 1982, 1994) and after (2003, 2009) the construction of the CR in the channel sections of the Dunajec and the Bia?ka, of 4700 m and 1900 m in length above the CR. The spatial-temporal pattern of changes in the structure and dynamics of the channel identified by the statistical algorithm shows that the changes interpreted as the impact of the reservoir (change in the channel width, lateral erosion, lateral acumulation and migration rate) had a reach in the river channel of about 1000 m broader than the reach of the reservoir's backwater. Sections of changed structure (width) coincided spatially with sections of changed dynamics (migration rate). The paper shows that statistical algorithms may be useful in the detection of sections of channels transformed by the impact of hydrotechnical developments.

Liro, Maciej

2014-05-01

86

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

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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.

Ma?gorzata Wraga

2009-06-01

87

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  

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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.

Gra?yna Wolnik-Trzeciak

2005-03-01

88

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)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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

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

89

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

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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.

Waldemar Placek

2011-08-01

90

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

Science.gov (United States)

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.

Piquemal, M.

2013-04-01

91

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.

2013-04-18

92

25 CFR 171.305 - Will BIA provide leaching service to me?  

Science.gov (United States)

...service to me? (a) We may provide you leaching service if: (1) You submit a written plan that documents how soil salinity limits your crop production and how leaching service will correct the problem; (2) We approve your plan in...

2010-04-01

93

Ab Initio heats of formation of medium-sized hydrocarbons. 13. Studies of benzo[e]pyrene, benzo[ghi]perylene, coronene, and circumcoronene  

Energy Technology Data Exchange (ETDEWEB)

The geometries and energies of the title compounds are reported at the STO-3G and 6-31G* SCF levels, except for circumcoronene, where only the STO-3G level was employed. Group equivalents and homodesmic reactions are used to obtain heats of formation from ab initio energies. At the 6-31G* SCF level, the {Delta}H{sub f}{degrees} values for the first three compounds are similar, ranging from 66.3 to 72.2 kcal/mol. Evidence of a small additional aromatic stability for coronene is found. The ab initio enthalpy changes for homodesmic reactions containing similar structural parameters are shown to be proportional to the natural logarithm of a quantity we term the Kekule ratio: the product of reactant and product Kekule numbers, each raised to a power equal to its stoichiometric coefficient. 26 refs., 1 fig., 5 tabs.

Disch, R.L.; Schulman, J.M.; Peck, R.C. [City Univ. of New York, Flushing, NY (United States)

1992-05-14

94

Políticas Nacionales y Desarrollo Tecnológico en el sector del VIS. La calidad de Oferta VIS en Colom bia  

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Full Text Available Este documento presenta reflexiones que buscan articular y estructurar, en una visión de conjunto, observaciones que, acerca de la dimensión tecnológica de la actividad en el Sector de la Vivienda de Interés Social (VIS, se pueden sintetizar en estos hechos relevantes:

Fique Pinto Luis Fernando

2011-01-01

95

Total and Intra-Abdominal Fat Distribution in Obese Adolescents Using Different Techniques: Anthropometry, BIA and CT  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Objectives: Assess the association between the anthropometric measurements of obesity, body composition with total and regional fat areas determined by CT in obese adolescents.Patients and method: 33 obese adolescents and 20 control group were assessed using anthropometry and body composition. CT measured total abdominal, subcutaneous and visceral fat areas. Results: Anthropometric, body composition and CT findings of fat content were significantly higher in obese adolescents. Visceral obesit...

2012-01-01

96

[Porencephalia vera in autopsy specimens from the Department of Pathological Anatomy, Medical Academy, in Bia?ystok 1976-1985].  

Science.gov (United States)

Morphological and statistical analysis of true porencephaly based on 2793 autopsies of children aged up to 18 years showed 12 cases of porencephaly, accounting for 0.43% of the autopsy material, and 5.2% of all anomalies of the central nervous system in this age group. The greatest number of porencephaly cases (6) was in the age group 3-18 years. The anomaly was twice as frequent in boys (8 cases) than girls (4 cases). Nine cases of porencephaly showed coexistence of other developmental anomalies (75%) mainly with those of central nervous system, especially microecephaly, congenital hydrocephalus, which could indicate a genetic determination of the anomaly. The most frequent associated neurological singn in porencephaly was psychomotor underdevelopment. PMID:3226475

Sobaniec-Lotowska, M; Sobaniec, W; Ostapiuk, H

1988-01-01

97

Joanna Maj, Zdzis?aw Wo?niak, Rafa? Bia?ynicki-Birula, Alina Jankowska-Konsur  

Directory of Open Access Journals (Sweden)

Full Text Available Wprowadzenie: Ziarniniak grzybiasty (mycosis fungoides, MF jest najcz??ciej spotykanym pierwotnie skórnym ch?oniakiem T-komórkowym. We wczesnych stadiach charakteryzuje si? powolnym przebiegiem i obrazem klinicznym mog?cym przypomina? inne jednostki chorobowe. Przy?uszczyca plackowata wielkoogniskowa (parapsoriasis en grandes plaques, PP nale??ca do skórnych rozrostów limfoproliferacyjnych T-komórkowych mo?e by? jednostk? chorobow? trudn? do ró?nicowania z wczesnymi postaciami MF. Cel pracy: Celem pracy by?a ocena ekspresji markerów proliferacji w populacjach komórek limfoidalnych wykwitów skórnych w przebiegu PP i MF. Materia? i metody: W badaniu wykorzystano bioptaty skórne pobrane od 11 chorych ze zdiagnozowan? PP, 23 chorych z wczesn? postaci? MF (stadium IA-IIA oraz 22 pacjentów z zaawansowan? postaci? MF (IIB-IV. W badaniach immunohistochemicznych okre?lono poziom proliferacji komórkowej ocenia¬j?c ekspresj? Ki-67 i AgNORs. Analiz? statystyczn? przeprowadzono przy u?yciu testu t-Studenta. Wyniki: Nie stwierdzono statystycznie istotnych ró?nic (p>0,005 poziomu proliferacji komórkowej mierzonej obydwoma metodami mi?dzy grup? pacjentów z PP a grup? chorych z wczesn? postaci? MF. Wykazano natomiast statystycznie znacz?ce ró?nice dotycz?ce poziomu proliferacji komórkowej mi?dzy grup? z zaawansowanym MF a grup? z wczesn? postaci? MF i grup? z PP (p<0,005 w badaniach przeprowadzonych przy u?yciu obu markerów - Ki-67 i AgNORs. Wnioski: Badane czynniki Ki-67 i AgNORs s? u?ytecznymi markerami okre?laj?cymi rokowanie i stopie? zaawansowania MF. ?aden z nich nie umo?liwia ró?nicowania PP z wczesn? postaci? MF.

Joanna Maj

2008-12-01

98

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

Digital Repository Infrastructure Vision for European Research (DRIVER)

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...

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

2010-01-01

99

76 FR 43702 - Renewal of Agency Information Collection for Probate of Indian Estates  

Science.gov (United States)

...SUMMARY: The Bureau of Indian Affairs (BIA) is proposing to submit the information...Affairs, Director, Special Projects, BIA Division of Probate Services, 2600 N Central...AZ 85004; e-mail: Charlene.Toldeo@bia.gov. FOR FURTHER INFORMATION...

2011-07-21

100

Body Composition Tests  

Science.gov (United States)

... ARE BODY COMPOSITION TESTS? ANTHROPOMETRY BIOELECTRICAL IMPEDANCE ANALYSIS (BIA) BODY MASS INDEX (BMI) COMPUTERIZED TOMOGRAPHY (CT OR ... associated with greater health risk. Bioelectrical Impedance Analysis (BIA) In BIA, a person is weighed. Age, height, ...

 
 
 
 
101

76 FR 43702 - Renewal of Agency Information Collection for Tribal Probate Codes  

Science.gov (United States)

...SUMMARY: The Bureau of Indian Affairs (BIA) is proposing to submit the information...Affairs, Director, Special Projects, BIA Division of Probate Services, 2600 N Central...AZ 85004; e-mail: Charlene.Toldeo@bia.gov. FOR FURTHER INFORMATION...

2011-07-21

102

A molecular transporter engineering approach to improving xylose catabolism in Saccharomyces cerevisiae.  

Science.gov (United States)

Traditional metabolic pathway engineering rarely considers the influence of molecular transport. Here, we describe the directed evolution of two heterologous transporters, Candida intermedia GXS1 and Scheffersomyces stipitis XUT3. Growth rate on xylose was improved up to 70% by mutant transporter expression. Most mutants were found to exhibit vastly improved V(max) values and display an increase in high cell density sugar consumption rates. Mixed glucose and xylose fermentations reveal that mutant transporters can alter the diauxic shift dynamics and the simultaneous sugar utilization capacity of the host strain. Analysis of mutations highlights several important residues influencing transporter function including point mutations at F40 of C. intermedia GXS1 and at E538 of S. stipitis XUT3. This work is the first to demonstrate that molecular transporter proteins can be improved for biotechnological applications through directed evolution in yeast. PMID:22445945

Young, Eric M; Comer, Austin D; Huang, Huashu; Alper, Hal S

2012-07-01

103

Report on the soil-zoological expeditions to Ecuador and Colom­bia between 1986-1993. I. list of localities and habitats of "Berlese" samples.  

Directory of Open Access Journals (Sweden)

Full Text Available Complete lists of the sampling localities and habitats of the Hungarian soil zoological expeditions to Ecuador and Colombia between 1986 and 1993 are presented. The lists are organized according to the expedition’s dates and apart from the locality some data on the biotopes and sampled substrates are also given.

Zicsi, A.

2008-06-01

104

Report on the soil-zoological expeditions to Ecuador and Colom­bia between 1986-1993. I. list of localities and habitats of "Berlese" samples.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Complete lists of the sampling localities and habitats of the Hungarian soil zoological expeditions to Ecuador and Colombia between 1986 and 1993 are presented. The lists are organized according to the expedition’s dates and apart from the locality some data on the biotopes and sampled substrates are also given.

2008-01-01

105

A Temporal -omic Study of Propionibacterium freudenreichii CIRM-BIA1T Adaptation Strategies in Conditions Mimicking Cheese Ripening in the Cold  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Propionibacterium freudenreichii is used as a ripening culture in Swiss cheese manufacture. It grows when cheeses are ripened in a warm room (about 24°C). Cheeses with an acceptable eye formation level are transferred to a cold room (about 4°C), inducing a marked slowdown of propionic fermentation, but P. freudenreichii remains active in the cold. To investigate the P. freudenreichii strategies of adaptation and survival in the cold, we performed the first global gene expression profile for...

2012-01-01

106

25 CFR 1000.68 - May non-BIA bureaus provide technical assistance to a Tribe/Consortium in drafting its planning...  

Science.gov (United States)

...Consortium in drafting its planning grant application? 1000...SELF-DETERMINATION AND EDUCATION ACT Other Financial Assistance for Planning and Negotiation Grants for...Consortium in drafting its planning grant application?...

2009-04-01

107

G?ówne bia?ko zasadowe eozynofilów (eosinophil major basic protein - MBP a przeciwcia?a IgA przeciwko naskórkowej transglutaminazie w opryszczkowatym zapaleniu skóry  

Directory of Open Access Journals (Sweden)

Full Text Available Wst?p: W opryszczkowatym zapaleniu skóry (dermatitis herpetiformis - DH w szczytach brodawek skórnych wyst?puj? mikroropnie z?o?one g?ównie z neutrofilów. Neutrofilom przypisuje si? istotn? rol? w niszczeniu po??czenia skórno-naskórkowego. Poniewa? eozynofile tak?e s? tam obecne, wi?c nie mo?na wykluczyæ ich udzia?u w patogenezie zmian skórnych. Cel pracy: Celem pracy by?a numeryczna analiza nasilenia skórnych z?ogów MBP u pacjentów z DH w porównaniu z chorymi z pemfigoidem p?cherzowym (bullous pemphigoid - BP oraz zbadanie korelacji mi?dzy poziomem przeciwcia? kr???cych IgA przeciwko naskórkowej transglutaminazie (IgA eTG a nasileniem skórnych z?ogów MBP w DH. Materia? i metody: Badaniami obj?to 18 chorych na DH i 15 na BP. MBP w skórze obejmuj?cej ?wie?y p?cherz wykrywano technik? immuno-histochemiczn? streptawidyna/peroksydaza. Nasilenie z?ogów MBP analizowano numerycznie w p?aszczy?nie i w przestrzeni przy u?yciu programu komputerowego Analizator 4D. Poziom surowiczych przeciwcia? IgA eTG badano technik? ELISA. Wyniki: Nasilenie z?ogów MBP w grupie BP analizowane zarówno w p?aszczy?nie, jak i przestrzennie by?o znamiennie wy?sze od nasilenia z?ogów wDH. Nie stwierdzono znamiennej zale?no?ci mi?dzy poziomem kr???cych przeciwcia? IgA eTG a nasileniem skórnych z?ogów MBP w DH. Wnioski: Wydaje si?, ?e pobudzenie eozynofilów skórnych w DH oceniane uwalnianiem MBP jest mniej intensywne od pobudzenia eozynofilów skórnych w BP. Kr???ce przeciwcia?a IgA eTG nie wp?ywaj? znacz?co na uwalnianie MBP w DH.

Gra?yna Wolnik-Trzeciak

2005-06-01

108

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

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 transpla...

2007-01-01

109

75 FR 8731 - Renewal of Agency Information Collection for Grazing Permits  

Science.gov (United States)

...SUMMARY: The Bureau of Indian Affairs (BIA) is seeking comments on renewal of Office...submit certain information for review by the BIA. DATES: Interested persons are invited...219-0006, or e-mail David.Edington@bia.gov. FOR FURTHER INFORMATION...

2010-02-25

110

75 FR 50776 - Renewal of Agency Information Collection for Leases and Permits on Trust or Restricted Land...  

Science.gov (United States)

...of 1995, the Bureau of Indian Affairs (BIA) is submitting the collection of information...219-1195; e-mail: Ben.Burshia@bia.gov. FOR FURTHER INFORMATION CONTACT...SUPPLEMENTARY INFORMATION: I. Abstract BIA is seeking renewal of the approval for...

2010-08-17

111

75 FR 8104 - Information Collection for Tax Credit Bonds for Bureau of Indian Affairs-Funded Schools  

Science.gov (United States)

...collection is related to tax credit bonds for BIA-funded schools authorized by the American...construction, rehabilitation, or repair of a BIA-funded elementary or secondary school...or e- mail to: Bernadette.Myers@bia.gov. FOR FURTHER INFORMATION...

2010-02-23

112

76 FR 71600 - Renewal of Agency Information Collection for Reindeer in Alaska; Request for Comments  

Science.gov (United States)

...of 1995, the Bureau of Indian Affairs (BIA) is seeking comments on renewal of Office...Alaska 99802-5520; Email Keith.Kahklen@bia.gov; Telephone (907) 586-7618 and...SUPPLEMENTARY INFORMATION: I. Abstract The BIA is seeking renewal of the approval for...

2011-11-18

113

76 FR 6493 - Notice of Intent to Prepare an Environmental Impact Statement for the Proposed K Road/Moapa Band...  

Science.gov (United States)

...public that the Bureau of Indian Affairs (BIA), as lead agency, with the Moapa Band...Regional Environmental Protection Officer, BIA Western Regional Office Branch of Environmental...379-3833; e-mail: amy.heuslein@bia.gov; or Mr. Paul Schlafly,...

2011-02-04

114

75 FR 22612 - Renewal of Agency Information Collection for Grazing Permits; Request for Comments  

Science.gov (United States)

...Reduction Act, the Bureau of Indian Affairs (BIA) is submitting the information collection...submit certain information for review by the BIA. DATES: Interested persons are invited...219-0006, or e-mail David.Edington@bia.gov. FOR FURTHER INFORMATION...

2010-04-29

115

76 FR 30961 - Renewal of Agency Information Collection for Verification of Indian Preference for Employment...  

Science.gov (United States)

...of Indian Preference for Employment with BIA and IHS; Request for Comments AGENCY...of 1995, the Bureau of Indian Affairs (BIA) is seeking comments on renewal of Office...Washington, DC 20240; Kevin.bearquiver@bia.gov. FOR FURTHER INFORMATION...

2011-05-27

116

76 FR 56787 - Privacy Act of 1974; as Amended; Notice To Amend an Existing System of Records  

Science.gov (United States)

...intent to amend Bureau of Indian Affairs (BIA) Privacy Act system of records, ``Indian Social Services Case Files--Interior, BIA-8'' to change the name of the system...Case Management System, Interior/BIA-8,'' and update the categories of...

2011-09-14

117

75 FR 1407 - Tribal Consultation on Proposed Revisions to 25 CFR Parts 81 & 82  

Science.gov (United States)

...given that the Bureau of Indian Affairs (BIA) will conduct another consultation meeting...in FR Doc. E9-27181, page 58310, the BIA will conduct a consultation meeting with...Register on November 12, 2010, that the BIA would conduct five tribal consultation...

2010-01-11

118

75 FR 47622 - Draft Environmental Impact Statement for the Cloverdale Rancheria of Pomo Indians' Proposed 70...  

Science.gov (United States)

...public that the Bureau of Indian Affairs (BIA) as lead agency, with the Cloverdale Rancheria...INFORMATION: The Tribe has requested the BIA to acquire six parcels, totaling 70 ...of up to five stories above grade. The BIA, serving as the lead agency for...

2010-08-06

119

76 FR 30961 - Renewal of Agency Information Collection for Certificate of Degree of Indian or Alaska Native...  

Science.gov (United States)

...of 1995, the Bureau of Indian Affairs (BIA) is seeking comments on renewal of the...Washington, DC 20240; Kevin.bearquiver@bia.gov. FOR FURTHER INFORMATION CONTACT...SUPPLEMENTARY INFORMATION: I. Abstract BIA is seeking renewal of the approval for...

2011-05-27

120

77 FR 36226 - Notice of Intent To Establish an Osage Negotiated Rulemaking Committee  

Science.gov (United States)

...SUMMARY: The Bureau of Indian Affairs (BIA) is announcing its intent to establish...who would be affected by a final rule. BIA solicits comments on this proposal to establish...Committee and its proposed membership. BIA also invites anyone who will be...

2012-06-18

 
 
 
 
121

78 FR 72928 - Notice of Intent To Prepare an Environmental Impact Statement for the Proposed Wilton Rancheria...  

Science.gov (United States)

...public that the Bureau of Indian Affairs (BIA) as lead agency intends to gather information...916) 978-6051, email john.rydzik@bia.gov. SUPPLEMENTARY INFORMATION: The...will be available for public review at the BIA address shown in the ADDRESSES...

2013-12-04

122

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

Science.gov (United States)

...public that the Bureau of Indian Affairs (BIA) as the lead Federal agency, with the...Regional Environmental Protection Officer, BIA Western Regional Office Branch of Environmental...379-3833; email: amy.heuslein@bia.gov. Notices will be published in...

2011-11-25

123

76 FR 21778 - Renewal of Agency Information Collection for the Bureau of Indian Affairs Housing Improvement...  

Science.gov (United States)

...of 1995, the Bureau of Indian Affairs (BIA) is seeking comments on renewal of Office...for the collection of information for the BIA Housing Improvement Program, 25 CFR 256...Washington, DC 20240, Leslie.Jensen@bia.gov. FOR FURTHER INFORMATION...

2011-04-18

124

78 FR 49120 - Courts of Indian Offenses  

Science.gov (United States)

...Bureau of Indian Affairs 25 CFR Part 11 [BIA-2013-0001; 134/A0J351010.999900...SUMMARY: The Bureau of Indian Affairs (BIA) is confirming the interim final rule published...March 3, 2013, publication stated that the BIA would review comments on the interim...

2013-08-13

125

76 FR 58293 - Rate Adjustments for Indian Irrigation Projects  

Science.gov (United States)

...SUMMARY: The Bureau of Indian Affairs (BIA) owns or has an interest in, irrigation...service. (See total assessable acres.) BIA means the Bureau of Indian Affairs. Bill...Government, the Secretary of the Interior, the BIA, and all who are authorized to...

2011-09-20

126

75 FR 19421 - Renewal of Agency Information Collection for Leases and Permits on Trust or Restricted Land...  

Science.gov (United States)

...of 1995, the Bureau of Indian Affairs (BIA) is seeking comments on renewal of Office...208-7737; e-mail: Ben.Burshia@bia.gov. FOR FURTHER INFORMATION CONTACT...SUPPLEMENTARY INFORMATION: I. Abstract BIA is seeking renewal of the approval for...

2010-04-14

127

76 FR 45291 - Renewal of Agency Information Collection for Certificate of Degree of Indian or Alaska Native...  

Science.gov (United States)

...of 1995, the Bureau of Indian Affairs (BIA) is seeking comments on renewal of the...DC 20240; e-mail Debbie.McBride@bia.gov. FOR FURTHER INFORMATION CONTACT...SUPPLEMENTARY INFORMATION: I. Abstract BIA is seeking renewal of the approval for...

2011-07-28

128

77 FR 19315 - Renewal of Agency Information Collection for Reindeer in Alaska  

Science.gov (United States)

...of 1995, the Bureau of Indian Affairs (BIA) is submitting to the Office of Management...99802-5520; email: Keith.Kahklen@bia.gov; facsimile (907) 586-7120. FOR...Abstract The Bureau of Indian Affairs (BIA) is seeking renewal of the approval...

2012-03-30

129

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

Science.gov (United States)

...public that the Bureau of Indian Affairs (BIA) as the lead Federal agency, with the...Regional Environmental Protection Officer, BIA Western Regional Office Branch of Environmental...379-3833; email: amy.heuslein@bia.gov. The DEIS may be found on the...

2012-03-16

130

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

Science.gov (United States)

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. PMID:18544819

Donadio, C; Halim, A Ben; Caprio, F; Grassi, G; Khedr, B; Mazzantini, M

2008-06-01

131

Cardiolipin-based respiratory complex activation in bacteria  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Anionic lipids play a variety of key roles in membrane function, including functional and structural effects on respiratory complexes. However, little is known about the molecular basis of these lipid–protein interactions. In this study, NarGHI, an anaerobic respiratory complex of Escherichia coli, has been used to investigate the relations in between membrane-bound proteins with phospholipids. Activity of the NarGHI complex is enhanced by anionic phospholipids both in vivo and in vitro. Th...

Arias-cartin, Rodrigo; Grimaldi, Ste?phane; Pommier, Janine; Lanciano, Pascal; Schaefer, Ce?dric; Arnoux, Pascal; Giordano, Ge?rard; Guigliarelli, Bruno; Magalon, Axel

2011-01-01

132

Obesity and Its Diagnostic Methods in Turkish Children  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 Met...

2012-01-01

133

A practical guide to bioelectrical impedance analysis using the example of chronic obstructive pulmonary disease  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Bioelectrical impedance analysis (BIA) is a simple, inexpensive, quick and non-invasive technique for measuring body composition. The clinical benefit of BIA can be further enhanced by combining it with bioelectrical impedance vector analysis (BIVA). However, there is a substantial lack of information on the practical aspects of BIA/BIVA for those primarily interested in learning how to use and interpret this method in practice. The purpose of this article is to provide som...

Walter-Kroker Anja; Kroker Axel; Mattiucci-Guehlke Muriel; Glaab Thomas

2011-01-01

134

A practical guide to bioelectrical impedance analysis using the example of chronic obstructive pulmonary disease  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Bioelectrical impedance analysis (BIA) is a simple, inexpensive, quick and non-invasive technique for measuring body composition. The clinical benefit of BIA can be further enhanced by combining it with bioelectrical impedance vector analysis (BIVA). However, there is a substantial lack of information on the practical aspects of BIA/BIVA for those primarily interested in learning how to use and interpret this method in practice. The purpose of this article is to provide some guidance on the u...

Walter-kroker, Anja; Kroker, Axel; Mattiucci-guehlke, Muriel; Glaab, Thomas

2011-01-01

135

Obesity and Its Diagnostic Methods in Turkish Children  

Directory of Open Access Journals (Sweden)

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.

Dilek Yilmaz

2012-08-01

136

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

Science.gov (United States)

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

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

2014-04-01

137

The accuracy of hand-to-hand bioelectrical impedance analysis in predicting body composition in college-age female athletes.  

Science.gov (United States)

The purpose of this investigation was to determine the accuracy of hand-to-hand bioelectrical impedance analysis (BIA) for estimating body composition in college-age female athletes using dual-energy X-ray absorptiometry (DEXA) as the criterion measure. Forty National Association for Intercollegiate Athletics college female athletes volunteered to participate in this study. For each participant, total body fat percentage (BF%) and fat-free mass (FFM) were obtained via BIA and DEXA. The mean BF% and FFM values obtained by BIA were compared with the criterion DEXA measure. The DEXA strongly correlated to the BIA for BF% (r = 0.74, R2 = 0.55, SEE = 3.60, and p < 0.01) and FFM (r = 0.84, R2 = 0.71, SEE = 2.45, p < 0.01). However, when compared with the DEXA, the mean values for BIA were significantly lower for BF% (DEXA = 27.6 ± 5.3%, BIA = 22.5 ± 3.5%, p < 0.01) and higher for FFM (DEXA = 47.2 ± 4.5 kg, BIA = 50.6 ± 4.6 kg, p < 0.01). The results of this investigation indicate that hand-to-hand BIA significantly underestimates BF% and overestimated FFM in college-age female athletes when compared with the criterion DEXA. Practitioners should use caution when analyzing body composition with hand-held BIA in a population of athletic women. PMID:20647951

Esco, Michael R; Olson, Michele S; Williford, Henry N; Lizana, Suheil N; Russell, Angela R

2011-04-01

138

Estimation of confidence intervals of global horizontal irradiance obtained from a weather prediction model  

Science.gov (United States)

Many photovoltaic (PV) systems have been installed in Japan after the introduction of the Feed-in-Tariff. For an energy management of electric power systems included many PV systems, the forecast of the PV power production are useful technology. Recently numerical weather predictions have been applied to forecast the PV power production while the forecasted values invariably have forecast errors for each modeling system. So, we must use the forecast data considering its error. In this study, we attempted to estimate confidence intervals for hourly forecasts of global horizontal irradiance (GHI) values obtained from a mesoscale model (MSM) de-veloped by the Japan Meteorological Agency. In the recent study, we found that the forecasted values of the GHI of the MSM have two systematical forecast errors; the first is that forecast values of the GHI are depended on the clearness indices, which are defined as the GHI values divided by the extraterrestrial solar irradiance. The second is that forecast errors have the seasonal variations; the overestimation of the GHI forecasts is found in winter while the underestimation of those is found in summer. The information of the errors of the hourly GHI forecasts, that is, confidence intervals of the forecasts, is of great significance for planning the energy management included a lot of PV systems by an electric company. On the PV systems, confidence intervals of the GHI forecasts are required for a pinpoint area or for a relatively large area control-ling the power system. For the relatively large area, a spatial-smoothing method of the GHI values is performed for both the observations and forecasts. The spatial-smoothing method caused the decline of confidence intervals of the hourly GHI forecasts on an extreme event of the GHI forecast (a case of large forecast error) over the relatively large area of the Tokyo electric company (approximately 68 % than for a pinpoint forecast). For more credible estimation of the confidence intervals, it is required to consider the location of the installed PV systems or its capacity over the region.

Ohtake, Hideaki; Gari da Silva Fonseca, Joao, Jr.; Takashima, Takumi; Oozeki, Takashi; Yamada, Yoshinori

2014-05-01

139

Evaluación de la composición corporal en niñas usando impedanciometría bioeléctrica y pliegues subcutáneos Assessment of body composition in girls by bioelectrical impedance and skinfold anthropometry  

Directory of Open Access Journals (Sweden)

Full Text Available La estimación de los pliegues subcutáneos (PS para evaluar composición corporal ha sido utilizada durante años, sin embargo, su uso tiene limitaciones. La impedanciometría bioeléctrica (BIA es un nuevo método cuyo uso ha sido recomendado en adultos. Objetivos: evaluar si la BIA para estimar grasa corporal (GC tiene una precisión comparable a la obtenida usando PS en pediatría. Material y métodos: Se determinó % GC usando las ecuaciones de Slaughter para PS y Deurenberg, Houtkooper, Schaefer y Cordain para BIA en 50 niñas, entre 9 y 11,6 años. Resultados: El nivel de concordancia, evaluado por el método de Bland y Altman, entre % GC derivado de las ecuaciones de BIA y PS, fue pobre, con una diferencia promedio de 5% ± 2DE (-5,5 a 15,5. Conclusiones: En la determinación de GC la BIA no arroja cifras concordantes con las obtenidas por PS, por lo cual no es adecuado recomendar su uso en pediatríaSkinfold anthropometry (SKF has been used to estimate body composition for many years but it has several limitations. Bioelectrical impedance (BIA is a new method recently recommended to be used in adults. Aim: To determine the level of agreement for body fat mass (BF measurement by BIA and SKF. Subjects and methods: BF was calculated using the following algorithms: Slaughter for SKF, Deurenberg, Houtkooper, Schafer and Cordain for BIA in 50 girls aged between 9 and 11,6 years. Results: Level of agreement determined using Bland and Altman method was poor, with an average difference (SKF-BIA of 5% ± 2 DS (-5.5 to 15.5. Conclusions: Measurements of BF determined by BIA gave poor agreement with SKF, thus the use of BIA is not recommended in pediatrics clinical practice

Pascuala Urrejola N.

2001-01-01

140

Evaluación de la composición corporal en niñas usando impedanciometría bioeléctrica y pliegues subcutáneos / Assessment of body composition in girls by bioelectrical impedance and skinfold anthropometry  

Scientific Electronic Library Online (English)

Full Text Available SciELO Chile | Language: Spanish Abstract in spanish La estimación de los pliegues subcutáneos (PS) para evaluar composición corporal ha sido utilizada durante años, sin embargo, su uso tiene limitaciones. La impedanciometría bioeléctrica (BIA) es un nuevo método cuyo uso ha sido recomendado en adultos. Objetivos: evaluar si la BIA para estimar grasa [...] corporal (GC) tiene una precisión comparable a la obtenida usando PS en pediatría. Material y métodos: Se determinó % GC usando las ecuaciones de Slaughter para PS y Deurenberg, Houtkooper, Schaefer y Cordain para BIA en 50 niñas, entre 9 y 11,6 años. Resultados: El nivel de concordancia, evaluado por el método de Bland y Altman, entre % GC derivado de las ecuaciones de BIA y PS, fue pobre, con una diferencia promedio de 5% ± 2DE (-5,5 a 15,5). Conclusiones: En la determinación de GC la BIA no arroja cifras concordantes con las obtenidas por PS, por lo cual no es adecuado recomendar su uso en pediatría Abstract in english Skinfold anthropometry (SKF) has been used to estimate body composition for many years but it has several limitations. Bioelectrical impedance (BIA) is a new method recently recommended to be used in adults. Aim: To determine the level of agreement for body fat mass (BF) measurement by BIA and SKF. [...] Subjects and methods: BF was calculated using the following algorithms: Slaughter for SKF, Deurenberg, Houtkooper, Schafer and Cordain for BIA in 50 girls aged between 9 and 11,6 years. Results: Level of agreement determined using Bland and Altman method was poor, with an average difference (SKF-BIA) of 5% ± 2 DS (-5.5 to 15.5). Conclusions: Measurements of BF determined by BIA gave poor agreement with SKF, thus the use of BIA is not recommended in pediatrics clinical practice

Pascuala, Urrejola N.; María Isabel, Hodgson B.; María Gloria, Icaza N..

 
 
 
 
141

Assessment of appendicular skeletal muscle mass by bioimpedance in older community-dwelling Korean adults.  

Science.gov (United States)

It is crucial to investigate age-related body composition changes in geriatric medicine. Bioelectrical impedance analysis (BIA) is easy to perform, non-invasive, relatively inexpensive, and portable. However, the accuracy of measurement by BIA is questionable. To develop and cross-validate the predictive equation for estimated appendicular skeletal muscle mass (ASM) using BIA in older community-dwelling Korean adults, we include two cohorts: study participants aged 65-80 years in the Ansung cohort for the Korean Health and Genome Study (men, n=285; women, n=435) used as equation-generating group, and Korean Longitudinal Study of Health Aging (KLoSHA) as cross-validation group (men, n=202; women, n=208). Dual energy X-ray absorptiometry (DXA) and BIA were performed in both cohorts. Using multiple linear regression analysis, we drew a predictive equation for DXA-measured ASM by BIA resistance. From DXA and BIA measurements in the Ansung cohort, we generated the estimated equation ASM (kg)=[(Ht(2)/R×0.104)+(age×-0.050)+(gender×2.954)+(weight×0.055)]+5.663 where Ht is height in centimeters; R is BIA resistance in 250?; for gender, men=1 and women=0; and age is in years. We validated this equation in the KLoSHA. The r(2) of the estimated ASM was 0.890. This BIA equation provides valid estimates of ASM in older Korean adults. PMID:24309033

Kim, Jung Hee; Choi, Sung Hee; Lim, Soo; Kim, Ki Woong; Lim, Jae Young; Cho, Nam H; Park, Kyong Soo; Jang, Hak Chul

2014-01-01

142

A practical guide to bioelectrical impedance analysis using the example of chronic obstructive pulmonary disease  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Bioelectrical impedance analysis (BIA is a simple, inexpensive, quick and non-invasive technique for measuring body composition. The clinical benefit of BIA can be further enhanced by combining it with bioelectrical impedance vector analysis (BIVA. However, there is a substantial lack of information on the practical aspects of BIA/BIVA for those primarily interested in learning how to use and interpret this method in practice. The purpose of this article is to provide some guidance on the use of BIA/BIVA with special attention to practical considerations. This report reflects the authors' practical experience with the use of single-frequency BIA in combination with BIVA, particularly in COPD patients. First, the method and principles of BIA/BIVA are briefly described. Then, a practice-oriented approach to the interpretation and analysis of characteristic examples of altered nutritional and fluid status as seen with BIA/BIVA in COPD patients (e.g. malnutrition in obese and underweight patients with COPD, water retention is presented. As our examples show BIA/BIVA is an attractive and easy-to-learn tool for quick nutritional assessment and is therefore of great clinical benefit in daily practice.

Mattiucci-Guehlke Muriel

2011-04-01

143

75 FR 31699 - Indian Self-Determination Act Contracts and Annual Funding Agreements-Appeal Procedures  

Science.gov (United States)

...DOI) and the Indian Health Service (IHS) in the Department of Health and [[Page...Appeals In 25 CFR parts 900 and 1000, BIA and IHS have promulgated regulations governing contracts...71 FR 65825 (Nov. 9, 2006). BIA and IHS are therefore revising their...

2010-06-04

144

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

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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...

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

2013-01-01

145

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

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in english 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

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

146

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

Directory of Open Access Journals (Sweden)

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.

C.M.M. Resende

2011-11-01

147

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

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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.

Duro Debora

2005-04-01

148

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

Energy Technology Data Exchange (ETDEWEB)

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.

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

2012-12-01

149

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  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese 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 par [...] a 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. Abstract in english 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.

Erik Trovão, Diniz; Alexander A. L., Jorge; Ivo J. P., Arnhold; Arlan L., Rosenbloom; Francisco, Bandeira.

150

Inferences from stable water isotopes on the Holocene evolution of Scharffenbergbotnen blue ice area, East Antarctica  

DEFF Research Database (Denmark)

We show that it is possible to extract a high-resolution (annual) paleoclimate record from the surface of a blue-ice area (BIA). The variability of the surface stable-isotope values suggests that almost all the surface ice in Scharffenbergbotnen BIA, East Antarctica, is of Holocene age. The isotopic changes across the BIA show that the modern climate there is warmer than the climate in the early Holocene optimum (11 kyr BP). A volume-conserving ice flow model for the BIA constrained by isotopic variability and layer thicknesses, and a series of14C ages indicate both that the BIA has been smaller than now, and that the surface velocities were considerably smaller during the Last Glacial Maximum. Changes in ice-sheet thickness drive the BIA towards present-day conditions. The relatively young age of the majority of the BIA also explains the lack of meteorite finds in this area, and may be typical for many BIAs in low-elevation nunatak areas.

Sinisalo, A; Grinsted, Aslak

2007-01-01

151

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

DEFF Research Database (Denmark)

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.

Böhm, A; Heitmann, B L

2013-01-01

152

Determination of acetylsalicylic acid in tablets with salicylate ion selective electrode in a Batch Injection Analysis system  

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Full Text Available The feasibility of the use of a Batch Injection Analysis (BIA system for potentiometric determination of acetylsalicylic acid in tablets, with a membrane ion selective electrode, was investigated. There is no significant difference between the results obtained by the proposed method and those obtained by the Standard British Pharmacopaeia method12 at the 95% confidence level. Values of 4% and 2.5% for R.S.D. were obtained by the application of the BIA-potentiometric method and for the injections respectively. About 90 determinations per hour can be performed with the proposed BIA potentiometric method.

Fernandes Julio Cesar B.

1998-01-01

153

catena-Poly[[(1,10-phenanthrolinecadmium(II]-?-2-(1,3-benzimidazol-2-ylsulfanylacetato-?3N1,O:N3  

Directory of Open Access Journals (Sweden)

Full Text Available In title compound, [Cd(C9H6N2O2S(C12H8N2]n, the CdII atom is in a distorted tetragonal-pyramidal environment, coordinated by one chelating 1,10-phenanthroline ligand, one chelating 2-(1,3-benzimidazol-2-ylsulfanylacetate (bia ligand bound through one N atom and one O atom of the carboxyl group, and one N atom from a second bia ligand. Each bia ligand acts as bridge between CdII ions, forming one-dimensional coordination polymers along [010], with a shortest Cd...Cd distance of 4.27?(2?Å.

Lin Cheng

2009-01-01

154

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

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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 ...

2007-01-01

155

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  

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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 computadorizada (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.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.

Michaela Eickemberg

2013-02-01

156

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

Digital Repository Infrastructure Vision for European Research (DRIVER)

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: manufactur...

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

2010-01-01

157

Multiple frequency bioimpedance is an adequate tool to assess total and regional fat mass in HIV-positive patients but not to diagnose HIV-associated lipoatrophy: a pilot study  

Directory of Open Access Journals (Sweden)

Full Text Available Introduction: HIV-associated lipodystrophy syndrome causes systemic metabolic alterations and psychological distress that worsen the quality of life of these patients. An early detection should be considered to efficiently treat it. Objective criteria or reference indices are needed for an early diagnosis. Bioelectrical Impedance Analysis (BIA is an operator-independent, repeatable and non-invasive method of body composition evaluation that is less expensive than dual-energy X-ray absorptiometry (DXA and/or CT scans. The aims of this pilot study were to validate the data obtained by BIA to measure fat mass in HIV-positive patients with/without lipoatrophy and to determine if BIA correctly diagnoses lipoatrophy in HIV-positive patients. Methods: Thirty-nine participants were included in this preliminary study. Fourteen were HIV-negative (eight men whereas 25 were HIV-positive patients (17 men. Eleven of the HIV-positive patients were classified as lipoatrophic according to subjective evaluation by the physicians. Total and regional body composition was measured in basal conditions by DXA and by BIA. To obtain abdominal CT scan fat values, transverse slices with 6-mm thickness were acquired at the L4-L5 intervertebral space. Results: BIA measurements of total and regional body fat were significantly correlated with those obtained by DXA (p < 0.05 to <0.01 in HIV-positive patients. However, agreement between methods was poor as not very high ICC (intraclass correlation coefficient values were observed. BIA and DXA showed higher ICC values in lipoatrophic patients. The visceral index obtained by BIA was correlated with total and visceral fat in L4 measured by CT scan (r = 0.607 and r = 0.617, respectively, p < 0.01 in HIV-positive patients. The Fat Mass Ratio (FMR calculated by BIA did not correlate or agree with DXA values. Conclusions: Multi-frequency BIA could be an effective method to evaluate the evolution of total and regional fat composition in HIV-positive patients with/without lipoatrophy. The correlations between BIA and DXA improved in lipoatrophic patients and in men, suggesting that its efficacy depends on fat mass, gender and probably other factors. The visceral index obtained by BIA seems to be a reliable indicator of abdominal obesity. However, BIA did not fulfil the need for easy quantitative diagnostic tools for lipoatrophy, and it did not provide sufficient diagnostic cut-off values for this syndrome.

Patricia Pérez-Matute

2013-12-01

158

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  

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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 relation...

Lestariadi, Riski A.; Sutonya Thongrak; Ratya Anindita

2012-01-01

159

The Effect of Temperature on the Sorption Properties of Coal from Upper Silesian Coal Basin, Poland / WP?YW Zmian Temperatury NA W?ASNO?CI Sorpcyjne NA Podstawie BADA? Wybranych W?GLI Z GÓRNO?L?SKIEGO ZAG??BIA W?GLOWEGO  

Science.gov (United States)

This paper presents the results of studies on gas sorption performed by means of the gravimetric method. The tests were performed on two coal samples of different metamorphism degrees, came from two regions of Upper Silesian Coal Basin, Poland. The changes in sorption capacity of coals were measured in the pressure range from 0.1 MPa to 17 MPa and in temperatures ranging from 291K to 333K. Coal of a lower coalification degree was a better methane sorbent. Changes in sorption capacity of tested coals were linearly dependent on the temperature. The increase in temperature of 10K reduces the Langmuir sorption of about 0.7-0.8 [cm3/g]. Such increase of temperature causes a nonlinear increase of the Langmuir pressure (b-1). These results showed that the rise of rock temperature, caused by geothermal gradient, can induce a significant increase of equilibrium pressure of methane in coal seam. An increase of coal seam temperature may cause an increase of gas and coal outburst risk in a coal mine. W pracy przedstawiono wyniki bada? sorpcyjnych wykonanych na dwóch rodzajach w?gla o ró?nym stopniu uw?glenia. Próbki do bada? pochodzi?y z kopal? „Sobieski" w Jaworznie oraz „Pniówek" w Paw?owicach. Badania polega?y na przeprowadzeniu serii pomiarów izoterm sorpcji w ró?nych temperaturach uk?adu w?giel-metan. Badania przeprowadzono metod? grawimetryczn?, polegaj?c? na pomiarze zmian masy w?gla wywo?anych sorpcj? metanu. Maksymalne ci?nienie sorpcji wynosi?o 1.7 MPa. Zakres zmian temperatury wynosi? 40K. Dla w?gla z kopalni „Pniówek" wykonano dodatkowo pomiary desorpcji metanu we wszystkich badanych temperaturach. Wyniki pozwoli?y na wyznaczenie izoterm sorpcji przedstawionych w pracy oraz dopasowanie wspó?czynników izoterm Langmuir'a. W?giel o ni?szym stopniu uw?glenia okaza? si? lepszym sorbentem dla metanu. Zmiany warto?ci maksymalnych sorpcji Langmuira w funkcji temperatury maj? charakter liniowy a wspó?czynniki kierunkowe prostych dopasowanych do wyników pomiaru maj? bardzo zbli?one warto?ci. Analizuj?c wzgl?dne zmiany pojemno?ci sorpcyjnej w procesach sorpcji i desorpcji mo?na, ?e najwi?ksze ró?nice pomi?dzy warto?ciami sorpcji i desorpcji wyst?puj? przy niskich warto?ciach ci?nie?. Przy ci?nieniu 0.1 MPawynosz? one od ok. 16% do ok. 20%. Przy ci?nieniu powy?ej 0.5 MPa wielko?? histerezy nie przekracza 5%. W pracy przedstawiono równie? rozwa?ania dotycz?ce wp?ywu zmian temperatury z?o?owej, wywo?anego gradientem geotermicznym na zmiany ci?nienia równowagowego metanu w pok?adzie. Do obliczenia wykonano dla przyk?adowych g??boko?ci od od 600 m do 1400 m. Wyniki pokazuj?, ?e waz ze wzrostem metanono?no?ci i g??boko?ci gwa?townie mo?e wzrasta? ci?nienie równowagowe metanu w pok?adach w?gla. Ci?nienie metanu jest jednym z najwa?niejszych parametrów wp?ywaj?cych na mo?liwo?? wyst?powania wyrzutów metanu i ska? w kopalniach. Nale?y przypuszcza?, ?e zagro?enie wyrzutami metanu i ska? b?dzie wzrasta?o wraz z g??boko?ci? prowadzenia robót górniczych.

Wierzbicki, Miros?aw

2013-12-01

160

BOOKMARKS:  

Biogas Flow Calculation for Riverton 57 Figure 3.9.Renewable Energy Site Assessments in Jamaica 61 Figure 4. ...di use radiation (DIF is included in the GHI calculation) ...equivalent of 10,000 cubic meters of biogas, and 200 biodigester septic tanks for domestic sewage that produce an equivalent

 
 
 
 
161

????: GR00313  

Full Text Available GR00313 J. Biol. Chem. 266 22380 22385 Berg,B.L./Li,J./Heider,J./Stewart,V.J. Nitrate-inducible de sequence of the fdnGHI operon and evidence that opal (UGA) encodes selenocys-teine. fdnG/fdnH/fdnI

162

75 FR 19989 - Final Environmental Impact Statement for Drought Management Planning at the Kerr Hydroelectric...  

Science.gov (United States)

...hand-carry written comments to: Mr. Bob Dach, Hydropower Program Manager, Bureau of...e-mail written comments to: robert.dach@bia.gov. See the SUPPLEMENTARY INFORMATION...FURTHER INFORMATION CONTACT: Mr. Bob Dach, Hydropower Program Manager, Bureau...

2010-04-16

163

Group and individual agreement between field and dual X-ray absorptiometry-based body composition techniques in children from standard schools and a sports academy.  

Science.gov (United States)

Percentage fat (%FM) and fat-free mass (FFM) were measured in 37 children from a sports academy and in 71 children from standard schools with dual x-ray absorptiometry (DXA) and bioelectrical impedance analysis (BIA) using the manufacturer's equation (Tanita) and an ethnic-specific prediction equation (Haroun). In the standard school, BIA overestimated FFM and underestimated %FM by a mean of 2.5 kg and 5.2%, respectively, using the Tanita equation. In girls from the sports academy, the Tanita equation underestimated FFM and overestimated %FM compared with DXA (mean difference BIA-DXA; FFM: -1.3 kg; %FM: 1.8%). The Haroun equation improved mean agreement between BIA and DXA in children (11 to 15 years) from the sports academy and for boys from standard schools, but reduced accuracy on individual assessments. These results have important practice implications for dietetics practitioners specializing in sports nutrition and exercise trainers. PMID:24021735

Gerasimidis, Konstantinos; Shepherd, Sheila; Rashid, Rajeeb; Edwards, Christine Ann; Ahmed, Faisal

2014-01-01

164

76 FR 12108 - Environmental Impacts Statements; Notice of Availability  

Science.gov (United States)

...Amended Notices EIS No. 20110008, Draft EIS, BIA, CA, Big Sandy Rancheria and Casino and Resort Project, Proposing...Entertainment Facility, Approval of Lease Agreement Grant, Big Sandy Rancheria Band of Western Mono Indians, East of Friant, Fresno...

2011-03-04

165

76 FR 2680 - Environmental Impacts Statements; Notice of Availability  

Science.gov (United States)

...775-635-4000. EIS No. 20110008, Draft EIS, BIA, CA, Big Sandy Rancheria and Casino and Resort Project, Proposing...Entertainment Facility, Approval of Lease Agreement Grant, Big Sandy Rancheria Band of Western Mono Indians, East of Friant, Fresno...

2011-01-14

166

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

Science.gov (United States)

...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...

2013-09-05

167

Budget impact analysis.  

Science.gov (United States)

A budget impact analysis (BIA) is used to assess whether the adoption of a new health technology is affordable, given the resource and budget constraints of the context. Increasingly, BIAs are coming to be viewed as an important-if not essential-part of health technology assessment (HTA). BIA data is often examined in conjunction with cost-effectiveness analysis (CEA) data to help inform decisions makers when developing reimbursement policies within the resource constraints of their health care system. This article presents a review of existing BIA guidelines from around the world and makes some initial recommendations for the development of Thai BIA guidelines, as part of the newly-developed Economic Evaluation guidelines for Thailand. Initial recommendations include guidelines on appropriate analytic framework design, study design, perspective, scenarios for comparison, target population, costing and resource use, uncertainty analysis, and discounting. PMID:24964701

Leelahavarong, Pattara

2014-05-01

168

78 FR 52548 - The National Children's Study, Vanguard (Pilot) Study Proposed Collection; 60-day Comment Request  

Science.gov (United States)

...Child Health and Human Development, National Institutes...of Child Health and Human Development (NICHD), National...including Body Mass Index. BIA will be measured...of Child Health and Human Development National...

2013-08-23

169

78 FR 76629 - The National Children's Study, Vanguard (Pilot) Study; Submission for OMB Review; 30-Day Comment...  

Science.gov (United States)

...Child Health and Human Development, National Institutes...of Child Health and Human Development (NICHD), National...including Body Mass Index. BIA will be measured...of Child Health and Human Development, National...

2013-12-18

170

Inhibition action of benzimidazole and benzitriazole on 12Kh18N10T steel corrosion in sulfuric acid  

International Nuclear Information System (INIS)

Rate of 12Kh18N10T steel corrosion in working solutions is determined and protection action of benzimidazole (BIA) and benzotriazole (BTA) heteroaromatic additions is calculated. Stainless steel does not practically corrode in 5% H2SO4 and protection action of BIA and BTA does not manifest itself. In pure 20% acid R=3.5 g/(m2·h), while with additions of BIA and BTA - 2.5 and 0.008 g/(m2·h) that corresponds to protection degree equal to 31.25 and 99.44% at 5% concentration of BIA the rate of corrosion is equal to 07006 g/(m2·h)

1992-01-01

171

Distribution and ecology of Biatoridium monasteriense J. Lahm ex Körb in Poland  

Digital Repository Infrastructure Vision for European Research (DRIVER)

A new site of Biatoridium monasteriense was discovered during a lichenological investigation in Bia?owie?a National Park. The paper presents information on the distribution of this species in Poland.

Anna ?ubek

2012-01-01

172

25 CFR 12.42 - Do Indian country law enforcement programs share information with their own communities or other...  

Science.gov (United States)

...criminal investigations program, and any investigations program receiving BIA funds will consult with local tribal leaders and managers of local patrol and detention programs. They will discuss the quality of the local investigations program and...

2009-04-01

173

25 CFR 1000.61 - Are other funds available to self-governance Tribes/Consortia for planning and negotiating with...  

Science.gov (United States)

...self-governance Tribes/Consortia for planning and negotiating with non-BIA...SELF-DETERMINATION AND EDUCATION ACT Other Financial Assistance for Planning and Negotiation Grants for...self-governance Tribes/Consortia for planning and negotiating with...

2009-04-01

174

78 FR 37568 - Draft Environmental Impact Statement for Proposed Strategies To Benefit Native Species by...  

Science.gov (United States)

...intends to file a draft environmental impact statement (DEIS...The DEIS will assess the environmental consequences of BIA approval...opportunity; and (3) fishing economy. Also addressed are cultural resources, grizzly bears, environmental justice and Indian...

2013-06-21

175

25 CFR 1000.102 - How are savings that result from downsizing allocated?  

Science.gov (United States)

...false How are savings that result from downsizing allocated? 1000.102 Section 1000...102 How are savings that result from downsizing allocated? Funds that are saved as a result of downsizing in BIA are allocated to...

2010-04-01

176

23 CFR 973.212 - Indian lands safety management system (SMS).  

Science.gov (United States)

...roadway, human, and vehicle safety elements; (4) Development...education activities on safety needs, programs, and countermeasures which affect safety on the BIA's and ITG's...standards) for low volume roads may be tailored to be...

2010-04-01

177

Distribution and ecology of Biatoridium monasteriense J. Lahm ex Körb in Poland  

Directory of Open Access Journals (Sweden)

Full Text Available A new site of Biatoridium monasteriense was discovered during a lichenological investigation in Bia?owie?a National Park. The paper presents information on the distribution of this species in Poland.

Anna ?ubek

2012-03-01

178

78 FR 46596 - Secretarial Commission on Indian Trust Administration and Reform  

Science.gov (United States)

...CONTACT: The Designated Federal Official, Sarah Harris, Chief of Staff to the Assistant...4141, Washington, DC 20240; or email to Sarah.Harris@bia.gov. SUPPLEMENTARY INFORMATION...introductions, agenda review; Remarks from Sarah Harris, Designated Federal...

2013-08-01

179

Developing an Objective Evaluation Method to Estimate Diabetes Risk in Community-Based Settings  

Science.gov (United States)

Abstract Background Exercise interventions often aim to affect abdominal obesity and glucose tolerance, two significant risk factors for type 2 diabetes. Because of limited financial and clinical resources in community and university-based environments, intervention effects are often measured with interviews or questionnaires and correlated with weight loss or body fat indicated by body bioimpedence analysis (BIA). However, self-reported assessments are subject to high levels of bias and low levels of reliability. Because obesity and body fat are correlated with diabetes at different levels in various ethnic groups, data reflecting changes in weight or fat do not necessarily indicate changes in diabetes risk. To determine how exercise interventions affect diabetes risk in community and university-based settings, improved evaluation methods are warranted. Methods We compared a noninvasive, objective measurement technique—regional BIA—with whole-body BIA for its ability to assess abdominal obesity and predict glucose tolerance in 39 women. To determine regional BIA's utility in predicting glucose, we tested the association between the regional BIA method and blood glucose levels. Results Regional BIA estimates of abdominal fat area were significantly correlated (r?=?0.554, P?BIA estimates of abdominal fat may predict fasting glucose better than whole-body BIA as well as provide an objective assessment of changes in diabetes risk achieved through physical activity interventions in community settings.

He, Qing; Fullilove, Robert; Kotler, Donald P.

2011-01-01

180

Bioelectric impedance overestimates the body fat in overweight and underestimates in Brazilian obese women: a comparation with Segal equation 1 Impedancia bioeléctrica sobrestima la grasa corporal con sobrepeso y subestima en mujeres brasileñas obesas: una comparación con la ecuación Segal  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Introduction: Overweight and obesity are risk factors to appearance of cardiovascular diseases and anthropometry is important as clinical tool for planning and health policymaking at population level. Thus, aim of this work was to compare the simple body fat percentage (%BF) obtained straight by bioeletric impedance (BIA) to the one obtained by the equation of Segal et al (1988), which uses the BIA resistance value, overweight among adult women. Methods: This study conducted with 86 adult wom...

Pimentel, G. D.; Bernhard, A. B.; Frezza, M. R. P.; Rinaldi, A. E. M.; Burini, R. C.

2010-01-01

 
 
 
 
181

Data Sharing Coordination and Blind Interference Alignment for Cellular Networks  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We consider coordination in a multi-user multiple input single output cellular system. In contrast with existing base station cooperation methods that rely on sharing CSI with or without user data to manage interference, we propose to share user data only. We consider a system where blind interference alignment (BIA) is applied to serve multiple users in each cell. We apply interference coordination through data sharing to mitigate other-cell interference at the cell-edge users. While BIA mit...

Akoum, Salam; Chen, Chung Shue; Debbah, Merouane; Heath Jr, Robert W.

2012-01-01

182

Body composition by H-2 dilution in Gambian infants: comparison with UK infants and evaluation of simple prediction methods  

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Gambian infants show growth faltering, but the underlying body composition is unknown. The present study aimed to compare body composition in Gambian and UK infants using H-2 dilution; and to evaluate accuracy of bioelectrical impedance analysis (BIA) and creatinine excretion for estimating lean mass (LM), using H-2 as the reference. Body composition was measured in thirty Gambian infants, aged 3-18 months. using (1) anthroporrietry, (2) H-2, (3) BIA (equation of Fjeld et at. Pediatr Res (199...

2009-01-01

183

Comparison of different body composition mesurements in severely obese patients in the clinical setting Comparación de las diferentes medidas de la composición corporal en pacientes con obesidad grave en un contexto clínico  

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Background Aims: Body composition measurements seem to be not reliable enough in obese patients. Our aim was to compare single frequency-bioelectrical impedance (SF-BIA) analysis; foot-to-foot impedance meters (FFI) or upper body fat analysers (UBFA) and DXA (Dual-energy X-ray absorptiometry) in severely obese patients. Patients and methods: Cross-sectional study including 40 severely obese patients. Bioelectrical impedance was performed for SF-BIA (Holtain (H) and OMRON BF 500 (O500)), FFI (...

Ballesteros-pomar, M. ª. D.; Calleja-ferna?ndez, A.; Diez-rodri?guez, R.; Vidal-casariego, A.; Blanco-sua?rez, M. ª. D.; Cano-rodri?guez, I.

2012-01-01

184

Looking for a road to get out of poverty. Is the current allocation of public spending on education in Colombia helping?  

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This paper presents a methodology to explore the impact on poverty of the public spending on education. The methodology consists of two approaches: Benefit Incidence Analysis (BIA) and behavioral approach. BIA considers the cost and use of the educational service, and the distribution of the benefits among groups of income. Regarding the behavioral approach, we use a Probit model of schooling attendance, in order to determine the inf...

2004-01-01

185

The Estimation of the Fat Free Mass Index in Athletes.  

Directory of Open Access Journals (Sweden)

Full Text Available Purpose: The purpose of this investigation was to compare a practical measurement of fat free mass index (FFMI from bioelectrical impedance analysis (BIA to the dual energy X-ray absorptiometry (DEXA value in collegiate athletes.Methods: Thirty-three male baseball players and 16 female gymnasts volunteered to participate in this study during their respective pre-season. Subjects visited the laboratory once and had their measurements taken in the following order: weight, height, DEXA, and Omron HBF-500.Results: The BIA device investigated was not a valid estimate of FFMI when compared to the DEXA. The TE was 0.93 kg/ m2 for males and 0.78 kg/ m2 for females. There were also significant mean differences between the BIA prediction and the DEXA value for males (BIA=20.6 kg/m2 vs. DEXA=21.1 kg/m2, P=0.007 and females (BIA=16.2 kg/m2 vs. DEXA=17.5 kg/m2, P=0.001.Conclusions: The BIA device investigated in this study did not provide a valid estimate of FFMI in male and female collegiate athletes. Although there was a general tendency for the BIA to underestimate FFMI compared to DEXA, 98% of the estimates were within plus or minus 2 kg/ m2. Therefore, while slightly biased, BIA may provide a reasonable (± 2 kg/ m2 estimate of nutritional status for practitioners who are unable able to afford more expensive equipment.

Thomas J. Pujol,

2012-09-01

186

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

Scientific Electronic Library Online (English)

Full Text Available SciELO Venezuela | Language: Portuguese Abstract in portuguese 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

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

187

Genetic evidence for the reduction of brassinosteroid levels by a BAHD acyltransferase-like protein in Arabidopsis.  

Science.gov (United States)

Brassinosteroids (BRs) are a group of steroidal hormones involved in plant development. Although the BR biosynthesis pathways are well characterized, the BR inactivation process, which contributes to BR homeostasis, is less understood. Here, we show that a member of the BAHD (for benzylalcohol O-acetyltransferase, anthocyanin O-hydroxycinnamoyltransferase, anthranilate N-hydroxycinnamoyl/benzoyltransferase, and deacetylvindoline 4-O-acetyltransferase) acyltransferase family may play a role in BR homeostasis in Arabidopsis (Arabidopsis thaliana). We isolated two gain-of-function mutants, brassinosteroid inactivator1-1Dominant (bia1-1D) and bia1-2D, in which a novel BAHD acyltransferase-like protein was transcriptionally activated. Both mutants exhibited dwarfism, reduced male fertility, and deetiolation in darkness, which are typical phenotypes of plants defective in BR biosynthesis. Exogenous BR treatment rescued the phenotypes of the bia1-1D mutant. Endogenous levels of BRs were reduced in the bia1-1D mutant, demonstrating that BIA1 regulates endogenous BR levels. When grown in darkness, the bia1 loss-of-function mutant showed a longer hypocotyl phenotype and was more responsive to exogenous BR treatment than the wild-type plant. BIA1 expression was predominantly observed in the root, where low levels of BRs were detected. These results indicate that the BAHD acyltransferase family member encoded by BIA1 plays a role in controlling BR levels, particularly in the root and hypocotyl in darkness. Taken together, our study provides new insights into a mechanism that maintains BR homeostasis in Arabidopsis, likely via acyl conjugation of BRs. PMID:22544867

Roh, Hyungmin; Jeong, Cheol Woong; Fujioka, Shozo; Kim, Youn Kyung; Lee, Sookjin; Ahn, Ji Hoon; Choi, Yang Do; Lee, Jong Seob

2012-06-01

188

Determination of acetylsalicylic acid in tablets with salicylate ion selective electrode in a Batch Injection Analysis system  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The feasibility of the use of a Batch Injection Analysis (BIA) system for potentiometric determination of acetylsalicylic acid in tablets, with a membrane ion selective electrode, was investigated. There is no significant difference between the results obtained by the proposed method and those obtained by the Standard British Pharmacopaeia method12 at the 95% confidence level. Values of 4% and 2.5% for R.S.D. were obtained by the application of the BIA-potentiometric method and for the inject...

1998-01-01

189

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  

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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 appli...

Piernas Sa?nchez, C. M. ª.; Morales Falo, E. M. ª.; Zamora Navarro, S.; Garaulet Aza, M.

2010-01-01

190

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

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 f...

Rashee Mittal; Goyal, Madhur M.; Dasude, Raju C.; Syed Zahiruddin Quazi; Anjan Basak

2011-01-01

191

Multi-frequency bioelectrical impedance analysis for assessing fat mass and fat-free mass in stroke or transient ischaemic attack patients.  

Science.gov (United States)

Background/Objectives:Dual energy X-ray absorptiometry (DEXA) is considered as the reference method in assessing fat-free and fat mass but is costly and not a pragmatic option in daily clinical practice. If devices based on multi-frequency bioelectrical impedance analysis (MF-BIA), which are cheaper and portable, are valid and reliable in measuring body composition, these could be used in routine clinical practice in nutritional management of patients and populations where malnutrition is prevalent.Subjects/Methods:A study of MF-BIA against DEXA in assessing fat-free and fat mass, and two internal validation studies of MF-BIA were conducted. Bland & Altman analysis to assess comparison against DEXA and Cronbach's ? for internal validity were carried out.Results:Ten participants (mean age 66 years; 70% men) with a recent stroke or transient ischaemic attack (TIA) were recruited to assess against DEXA and the first internal validation. The second internal validation was based on 80 pairs of MF-BIA measurements in 40 stroke patients (mean age 70.3 years; 55% men) assessed at hospital admission and on discharge. There was a strong correlation between MF-BIA and DEXA (correlation coefficient was 0.88 for fat-free mass and 0.77 for fat mass). According to Bland & Altman analysis, MF-BIA and DEXA fat-free and fat mass estimates were similar. Internal consistency was high with Cronbach's-? >0.9.Conclusion:MF-BIA can be reliably used in stroke and TIA patients. The feasibility, clinical and cost effectiveness of MF-BIA in routine monitoring and management of malnutrition in stroke and TIA patients with high prevalence of nutritional deficits is worthy of further evaluation. PMID:24398644

Kafri, M W; Potter, J F; Myint, P K

2014-06-01

192

Parenteral nutrition support for patients with pancreatic cancer. Results of a phase II study  

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BACKGROUND: Cachexia is a common problem in patients (pts) suffering from upper gastrointestinal cancer. In addition, most of these patients suffer from malabsorption and stenosis of the gastrointestinal tract due to their illness. Various methods of supplementary nutrition (enteral, parenteral) are practised. In patients with advanced pancreatic cancer (APC), phase angle, determined by bio-electrical impedance analysis (BIA), seems to be a survival predictor. The positive influence of BIA de...

Pelzer, U.; Arnold, D.; Govercin, M.; Stieler, J.; Doerken, B.; Riess, H.; Oettle, H.

2010-01-01

193

Body Fat Equations and Electrical Bioimpedance Values in Prediction of Cardiovascular Risk Factors in Eutrophic and Overweight Adolescents  

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The aim of this study was to analyze body fat anthropometric equations and electrical bioimpedance analysis (BIA) in the prediction of cardiovascular risk factors in eutrophic and overweight adolescents. 210 adolescents were divided into eutrophic group (G1) and overweight group (G2). The percentage of body fat (% BF) was estimated using 10 body fat anthropometric equations and 2 BIA. We measured lipid profiles, uric acid, insulin, fasting glucose, homeostasis model assessment-insulin resista...

2013-01-01

194

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)

Full Text Available SciELO Spain | Language: English Abstract in spanish 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

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

195

Is bioelectrical impedance accurate for use in large epidemiological studies?  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Percentage of body fat is strongly associated with the risk of several chronic diseases but its accurate measurement is difficult. Bioelectrical impedance analysis (BIA is a relatively simple, quick and non-invasive technique, to measure body composition. It measures body fat accurately in controlled clinical conditions but its performance in the field is inconsistent. In large epidemiologic studies simpler surrogate techniques such as body mass index (BMI, waist circumference, and waist-hip ratio are frequently used instead of BIA to measure body fatness. We reviewed the rationale, theory, and technique of recently developed systems such as foot (or hand-to-foot BIA measurement, and the elements that could influence its results in large epidemiologic studies. BIA results are influenced by factors such as the environment, ethnicity, phase of menstrual cycle, and underlying medical conditions. We concluded that BIA measurements validated for specific ethnic groups, populations and conditions can accurately measure body fat in those populations, but not others and suggest that for large epdiemiological studies with diverse populations BIA may not be the appropriate choice for body composition measurement unless specific calibration equations are developed for different groups participating in the study.

Merchant Anwar T

2008-09-01

196

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)

2013-01-01

197

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)

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)

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

198

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  

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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.

B. Knechtle

2011-12-01

199

XYLH encodes a xylose/H+ symporter from the highly related yeast species Debaryomyces fabryi and Debaryomyces hansenii.  

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The closely related yeasts Debaryomyces fabryi and Debaryomyces hansenii are excellent xylose consumers. We previously described the activity of a high-affinity xylose/H(+) symport from an industrial strain of D. hansenii subsequently reclassified as D. fabryi. We now report the identification of the gene encoding this permease, AY347871.2. This was retrieved from D. fabryi gDNA using a degenerate primer PCR strategy, based on conserved regions from the amino acid sequences of three well-characterized bacterial xylose/H(+) symporters. This sequence is 86% identical to another, DEHA2C11374p from D. hansenii type strain. DEHA2C11374p was conceptually ascribed to the major facilitator superfamily. The putative amino acid sequence of AY347871.2 and DEHA2C11374p presented a hydrophobicity pattern compatible with plasma membrane proteins. The last was functionally expressed in Saccharomyces cerevisiae. The sensitivity of transport activity to a protonophore confirmed its dependence on proton motive force, as expected from a symporter. We named D. fabryi AY347871.2 and D. hansenii DEHA2C11374p as XYLH from Xylose/H(+) symport. Based on the very high similarity, we suggested that Scheffersomyces stipitis Xut3 and Aspergillus nidulans AN8400.2 may also encode xylose high-affinity permeases. PMID:23809840

Ferreira, Danielly; Nobre, Alexandra; Silva, Marta Luisa; Faria-Oliveira, Fábio; Tulha, Joana; Ferreira, Célia; Lucas, Cândida

2013-11-01

200

Temporal analysis of xylose fermentation by Scheffersomyces stipitis using shotgun proteomics.  

Science.gov (United States)

Proteomics and fermentation technology have begun to integrate to investigate fermentation organisms in bioprocess development. This is the first shotgun proteomics study employed to monitor the proteomes of Scheffersomyces stipitis during xylose fermentation under oxygen limitation. We identified 958 nonredundant proteins and observed highly similar proteomes from exponential to early stationary phases. In analyzing the temporal proteome, we identified unique expression patterns in biological processes and metabolic pathways, including alternative respiration salicylhydroxamic acid (SHAM) pathway, activation of glyoxylate cycle, expression of galactose enzymes, and secondary zinc-containing alcohol dehydrogenase and O-glycosyl hydrolases. We identified the expression of a putative, high-affinity xylose sugar transporter Xut1p, but low-affinity xylose transporters were absent. Throughout cell growth, housekeeping processes included oxidative phosphorylation, glycolysis, nonoxidative branch of the pentose phosphate pathway, gluconeogenesis, biosynthesis of amino acids and aminoacyl total RNA (tRNA), protein synthesis and proteolysis, fatty acid metabolism, and cell division. This study emphasized qualitative analysis and demonstrated that shotgun proteomics is capable of monitoring S. stipitis fermentation and identifying physiological states, such as nutrient deficiency. PMID:22638791

Huang, Eric L; Lefsrud, Mark G

2012-10-01

 
 
 
 
201

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)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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

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

202

Znaczenie opieki stomatologicznej u chorych ze schorzeniami sercowo-naczyniowymi  

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Full Text Available W ci?gu minionej dekady wiele bada? by?o zorientowanych na poszukiwanie zwi?zków mi?dzy chorobami przyz?bia i chorobami serca. Czynniki ryzyka dla wyst?powania chorób przyz?bia i rozwoju mia?d?ycy s? podobne. Natomiast mechanizm wiod?cy do uszkodzenia naczy? wie?cowych w przebiegu chorób przyz?bia nie jest jasny. Zapalenie przyz?bia, jest wywo?ane przez bakterie jamy ustnej wywo?uj?ce lokalnie proces zapalny. Patogeny przyz?bia odgrywaj? w tym procesie wa?n? rol?. Przeciwcia?a przeciwko tym patogenom zwi?zane s? z chorob? wie?cow?, a antygeny bakteryjne by?y identyfikowane w blaszkach mia?d?ycowych t?tnic wie?cowych. Periodontitis zapocz?tkowuj?c uwolnienie kaskady czynników pro­cesu zapalnego i powoduj?c dysfunkcj? ?ródb?onka, mo?e mie? wp?yw na destabilizacj? i p?kanie blaszki mia?d?ycowej. Infekcja patogenami za palenia przyz?bia, np. Porphyromonasgingivalis wywo?uje w?ródb?onku naczy? zwi?kszenie ekspresji moleku? adhezyjnych: cz?steczki adhezji komórkowej naczy? (VCAM-1, cz?steczki adhezji mi?dzykomórkowej (ICAM-1, E-selektyny oraz cytokin prozapalnych - interleukiny 6 i interleukiny 8. Mog? one powodowa? destabilizacj? blaszki mia?d?ycowej i prowadzi? do jej p?kni?cia z nast?powym uruchomieniem kaskady czynników procesu krzepni?cia, okluzji naczynia i w nast?pstwie zawa?u serca lub udaru mózgu. Eliminacja zaawansowanego periodontitis poprawia funkcj? ?ródb?onka, zmniejsza st??enie markerów zapalenia oraz czynników prozakrzepowych co potwierdza hipotez?, ?e leczenie chorób przyz?bia mo?e obni?y? ryzyko wyst?po­wania epizodów sercowych. Regularna dba?o?? o uz?bienie, w tym miejscowe leczenie chorób przyz?bia, stosowanie ?rodków antyseptycznych, a w uzasadnionych sytuacjach antybiotykoterapia, s? szczególnie istotne u pacjentów z du?ym ryzykiem mia?d?ycy. Profilaktyk? antybiotykiem, maj?c? na celu zapobie?enie wyst?pienia infekcyjnego zapalenia wsierdzia, stosuje si? u chorych wysokiego ryzyka, którzy s? poddawani ekstrakcjom i implantacjom z?bów, leczeniu kana?owemu, zabiegom w obr?bie przyz?bia z?ba b?d? usuwaniu kamienia naz?bnego. Uwa?a si?, ?e dla zmniejszenia ryzyka wyst?pienia infekcyjnego zapalenia wsierdzia, znacznie efektywniejsze jest utrzymanie zdrowia i codzienna higieny jamy ustnej, która zmniejsza przej­?ciow? bakteriemi?, ni? profilaktyka antybiotykiem przed zabiegami stomatologicznymi.

Beata Wo?akowska-Kap?on

2009-06-01

203

Determination of acetylsalicylic acid in tablets with salicylate ion selective electrode in a Batch Injection Analysis system  

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese A possibilidade do uso do sistema de Análise por Injeção em Batelada (BIA) para a determinação potencimétrica de ácido acetilsalicílico em comprimidos, com eletrodo íon seletivo de membrana, foi investigado. Não há uma diferença significativa entre os resultados obtidos pelo método do proposto e pel [...] o método padrão da Farmacopéia Britânica, ao nível de confiaça de 95%. Valores de 4% e 2.5% para o desvio padrão relativo foram obtidos pela aplicação do método BIA- potenciométrico e para as injeções respectivamente. Cerca de 90 determinações por hora podem ser realizadas pela aplicação do método descrito. Abstract in english The feasibility of the use of a Batch Injection Analysis (BIA) system for potentiometric determination of acetylsalicylic acid in tablets, with a membrane ion selective electrode, was investigated. There is no significant difference between the results obtained by the proposed method and those obtai [...] ned by the Standard British Pharmacopaeia method12 at the 95% confidence level. Values of 4% and 2.5% for R.S.D. were obtained by the application of the BIA-potentiometric method and for the injections respectively. About 90 determinations per hour can be performed with the proposed BIA potentiometric method.

Julio Cesar B., Fernandes; Carlos Alexandre B., Garcia; Luciane A., Grandin; Graciliano de, Oliveira Neto; Oswaldo E.S., Godinho.

204

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

Directory of Open Access Journals (Sweden)

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.

Jiyoung Jung

2010-03-01

205

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 individuals with particularly low V-dotO2max

2008-02-01

206

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

Energy Technology Data Exchange (ETDEWEB)

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.

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

2013-02-01

207

Determination of polycyclic aromatic hydrocarbons in Athens atmosphere.  

Science.gov (United States)

Concentrations of total suspended particulates (TSP), benzene soluble fraction (BSF) and polycyclic aromatic hydrocarbons (PAH) have been determined in ambient air from four different sites in Athens, situated in urban, semi-industrial and industrial areas. GLC analysis has been applied for the determination of PAH, while the CGC/MS technique was used in order to confirm the obtained results. The same PAH pattern was observed for all stations. The identified PAH have been fluoranthene (FLA), pyrene (PYR), benzo(a)anthracene (BaA), chrysene (CHR), benzo(b)fluoranthene (BbF), benzo(k)fluoranthene (BkF), benzo(a)pyrene (BaP), benzo(e)pyrene (BeP) and benzo(ghi)perylene (B(ghi)P). The concentrations of individual PAH ranged from traces to 33 ng m-3 (e.g. same or lower comparing to other large cities). The higher values of PAH were found during adverse meteorological conditions. PMID:3557795

Viras, L G; Siskos, P A; Stephanou, E

1987-01-01

208

GENETICAL HARVEST INDEX AND POSSIBILITIES OF THE PHYSIOLOGICAL GENETICS TO IMPROVE MAIZE YIELD  

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Full Text Available The objective of this study was to point out a methodological way to evaluatemaize cultivars through genetical harvest index estimative (GHI. Furthermore, questions areraised about the unique utilization of harvest index (HI. It was used data from researchexperiments as well as from literature. The results showed a significant interference fromenvironmental factors which limit adaptation of maize cultivars, affecting grain yield. The focusis differentiated, since one searches to understand the effects which result in grain yield, identifyingthe causes (genetic and environmental which will result ultimately in a yield reduction of thegenotype maximum capacity to produce grain. The model plant is the maize, and the analysis ofthe data presented suggests methodological alternatives to estimate the GHI of each genotype.This procedure will be useful in maize plant breeding programs, taking into considerationmaximum yields as well as yields under adverse conditions (biotic and abiotic stresses, oragriculture of low technological inputs.

FREDERICO OZANAN MACHADO DURÃES

2002-04-01

209

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)

2010-07-01

210

Catabolite Repression Control of napF (Periplasmic Nitrate Reductase) Operon Expression in Escherichia coli K-12?  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Escherichia coli, a facultative aerobe, expresses two distinct respiratory nitrate reductases. The periplasmic NapABC enzyme likely functions during growth in nitrate-limited environments, whereas the membrane-bound NarGHI enzyme functions during growth in nitrate-rich environments. Maximal expression of the napFDAGHBC operon encoding periplasmic nitrate reductase results from synergistic transcription activation by the Fnr and phospho-NarP proteins, acting in response to anaerobiosis and nit...

2009-01-01

211

A BAYESIAN MODEL COMMITTEE APPROACH TO FORECASTING GLOBAL SOLAR RADIATION  

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This paper proposes to use a rather new modelling approach in the realm of solar radiation forecasting. In this work, two forecasting models: Autoregressive Moving Average (ARMA) and Neural Network (NN) models are combined to form a model committee. The Bayesian inference is used to affect a probability to each model in the committee. Hence, each model's predictions are weighted by their respective probability. The models are fitted to one year of hourly Global Horizontal Irradiance (GHI) mea...

Lauret, Philippe; Rodler, Auline; Muselli, Marc; David, Mathieu; Diagne, Hadja Mai?mouna; Voyant, Cyril

2012-01-01

212

Direct Evidence for Nitrogen Ligation to the High Stability Semiquinone Intermediate in Escherichia coli Nitrate Reductase A*  

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The membrane-bound heterotrimeric nitrate reductase A (NarGHI) catalyzes the oxidation of quinols in the cytoplasmic membrane of Escherichia coli and reduces nitrate to nitrite in the cytoplasm. The enzyme strongly stabilizes a menasemiquinone intermediate at a quinol oxidation site (QD) located in the vicinity of the distal heme bD. Here molecular details of the interaction between the semiquinone radical and the protein environment have been provided using advanced multifrequency pulsed EPR...

Grimaldi, Ste?phane; Arias-cartin, Rodrigo; Lanciano, Pascal; Lyubenova, Sevdalina; Endeward, Burkhard; Prisner, Thomas F.; Magalon, Axel; Guigliarelli, Bruno

2010-01-01

213

Health workforce responses to global health initiatives funding: a comparison of Malawi and Zambia  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Shortages of health workers are obstacles to utilising global health initiative (GHI funds effectively in Africa. This paper reports and analyses two countries' health workforce responses during a period of large increases in GHI funds. Methods Health facility record reviews were conducted in 52 facilities in Malawi and 39 facilities in Zambia in 2006/07 and 2008; quarterly totals from the last quarter of 2005 to the first quarter of 2008 inclusive in Malawi; and annual totals for 2004 to 2007 inclusive in Zambia. Topic-guided interviews were conducted with facility and district managers in both countries, and with health workers in Malawi. Results Facility data confirm significant scale-up in HIV/AIDS service delivery in both countries. In Malawi, this was supported by a large increase in lower trained cadres and only a modest increase in clinical staff numbers. Routine outpatient workload fell in urban facilities, in rural health centres and in facilities not providing antiretroviral treatment (ART, while it increased at district hospitals and in facilities providing ART. In Zambia, total staff and clinical staff numbers stagnated between 2004 and 2007. In rural areas, outpatient workload, which was higher than at urban facilities, increased further. Key informants described the effects of increased workloads in both countries and attributed staff migration from public health facilities to non-government facilities in Zambia to PEPFAR. Conclusions Malawi, which received large levels of GHI funding from only the Global Fund, managed to increase facility staff across all levels of the health system: urban, district and rural health facilities, supported by task-shifting to lower trained staff. The more complex GHI arena in Zambia, where both Global Fund and PEPFAR provided large levels of support, may have undermined a coordinated national workforce response to addressing health worker shortages, leading to a less effective response in rural areas.

Brugha Ruairí

2010-08-01

214

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

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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...

2011-01-01

215

Disruption of CXCR2-Mediated MDSC Tumor Trafficking Enhances Anti-PD1 Efficacy.  

Science.gov (United States)

Suppression of the host's immune system plays a major role in cancer progression. Tumor signaling of programmed death 1 (PD1) on T cells and expansion of myeloid-derived suppressor cells (MDSCs) are major mechanisms of tumor immune escape. We sought to target these pathways in rhabdomyosarcoma (RMS), the most common soft tissue sarcoma of childhood. Murine RMS showed high surface expression of PD-L1, and anti-PD1 prevented tumor growth if initiated early after tumor inoculation; however, delayed anti-PD1 had limited benefit. RMS induced robust expansion of CXCR2(+)CD11b(+)Ly6G(hi) MDSCs, and CXCR2 deficiency prevented CD11b(+)Ly6G(hi) MDSC trafficking to the tumor. When tumor trafficking of MDSCs was inhibited by CXCR2 deficiency, or after anti-CXCR2 monoclonal antibody therapy, delayed anti-PD1 treatment induced significant antitumor effects. Thus, CXCR2(+)CD11b(+)Ly6G(hi) MDSCs mediate local immunosuppression, which limits the efficacy of checkpoint blockade in murine RMS. Human pediatric sarcomas also produce CXCR2 ligands, including CXCL8. Patients with metastatic pediatric sarcomas display elevated serum CXCR2 ligands, and elevated CXCL8 is associated with diminished survival in this population. We conclude that accumulation of MDSCs in the tumor bed limits the efficacy of checkpoint blockade in cancer. We also identify CXCR2 as a novel target for modulating tumor immune escape and present evidence that CXCR2(+)CD11b(+)Ly6G(hi) MDSCs are an important suppressive myeloid subset in pediatric sarcomas. These findings present a translatable strategy to improve the efficacy of checkpoint blockade by preventing trafficking of MDSCs to the tumor site. PMID:24848257

Highfill, Steven L; Cui, Yongzhi; Giles, Amber J; Smith, Jillian P; Zhang, Hua; Morse, Elizabeth; Kaplan, Rosandra N; Mackall, Crystal L

2014-05-21

216

Nitrogen and Oxygen Regulation of Bacillus subtilis nasDEF Encoding NADH-Dependent Nitrite Reductase by TnrA and ResDE  

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The nitrate and nitrite reductases of Bacillus subtilis have two different physiological functions. Under conditions of nitrogen limitation, these enzymes catalyze the reduction of nitrate via nitrite to ammonia for the anabolic incorporation of nitrogen into biomolecules. They also function catabolically in anaerobic respiration, which involves the use of nitrate and nitrite as terminal electron acceptors. Two distinct nitrate reductases, encoded by narGHI and nasBC, function in anabolic and...

1998-01-01

217

Evolutionary Divergence of Duplicate Copies of the Growth Hormone Gene in Suckers (Actinopterygii: Catostomidae  

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Full Text Available Catostomid fishes (suckers have duplicate copies of the growth hormone gene and other nuclear genes, due to a genome duplication event early in the group’s history. Yet, paralogs of GH in suckers are more than 90% conserved in nucleotide (nt and amino acid (aa sequence. Within paralogs across species, variation in nt and aa sequence averages 3.33% and 4.46% for GHI, and 3.22% and 2.43% for GHII, respectively. Selection tests suggest that the two GH paralogs are under strong purifying selection. Consensus trees from phylogenetic analysis of GH coding region data for 23 species of suckers, other cypriniform fishes and outgroups resolved cypriniform relationships and relationships among GHI sequences of suckers more or less consistently with analyses based on other molecular data. However, the analysis failed to resolve all sucker GHI and GHII sequences as monophyletic sister groups. This unexpected topology did not differ significantly from topologies constrained to make all GH sequences monophyletic. We attribute this result either to limitations in our GHII data set or convergent adaptive changes in GHII of tribe Catostomini.

Charles D. Bell

2010-03-01

218

Models of the Compact Jet in GRS 1915+105  

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In this article, models are constructed of the compact jet in GRS 1915+105 during an epoch of optimal data capture. On April 02, 2003, the object was observed in the hard X-ray/soft gamma ray band (INTEGRAL), hard X-ray band (RXTE), near IR (ESO/New Technology Telescope) and the VLBA (8.3 GHz and 15 GHz). The source was in a so-called "high plateau state." The large radio flux provides high signal to noise ratios in the radio images. Thus, one can image the jet out to large distances ($ > 10^{15}$ cm). This combined with the broadband coverage make this epoch the best suited for modeling the jet. The parametric method developed in the papers \\cite{ghi85,ghi89,ghi96,sam97} that has been successfully utilized in the realm of extragalactic radio jets is implemented. The basic model is one where external inverse Compton (EIC) scattering of accretion disk photons by jet plasma provides the hard X-ray powerlaw. Unlike AGN jets, it is found that the radio jet must be highly stratified in the transverse direction in ...

Punsly, Brian

2011-01-01

219

Cis association of leukocyte Ig-like receptor 1 with MHC class I modulates accessibility to antibodies and HCMV UL18.  

Science.gov (United States)

Leukocyte Ig-like receptor (LIR) 1 (CD85j/ILT2/LILRB1) is an inhibitory receptor with broad specificity for MHC class I (MHC-I) and the human CMV MHC-I homologue UL18. LIR-1 can inhibit NK cells through the conventional interaction with MHC-I expressed on a target cell (in trans) but the nature and the effects of LIR-1 interactions with MHC-I in cis are not well understood. Here we show that MHC-I expressed in cis has an impact on the detection of LIR-1 with various antibodies. We found the cis interaction alters recognition by only one of two antibodies known to block functional trans recognition by LIR-1 on NK cells. Specifically, we observed an enhancement of recognition with GHI/75 in the presence of various MHC-I alleles on 721.221 cells. We found that blocking the LIR-1 contact site with anti-MHC-I antibodies decreased detection of LIR-1 with GHI/75. We also observed a decrease in GHI/75 following acid denaturation of MHC-I. Finally, disruption of LIR-1 cis interactions with MHC-I significantly enhanced UL18-Fc binding to NK92 cells and enhanced the relative inhibition of NK92 cells by HLA-G. These results have implications for LIR-1 function in scenarios such as infection when MHC-I levels on effector cells may be increased by IFNs. PMID:23348966

Li, Nicholas L; Fu, Li; Uchtenhagen, Hannes; Achour, Adnane; Burshtyn, Deborah N

2013-04-01

220

Bioelectric impedance overestimates the body fat in overweight and underestimates in Brazilian obese women: a comparation with Segal equation 1 / Impedancia bioeléctrica sobrestima la grasa corporal con sobrepeso y subestima en mujeres brasileñas obesas: una comparación con la ecuación Segal  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: English Abstract in spanish Introducción: El sobrepeso y la obesidad son factores de riesgo para la aparición de enfermedades cardiovasculares y la antropometría es importante como herramienta clínica para la planificación y la formulación de políticas de salud a nivel de la población. Así el objetivo de este trabajo fue compa [...] rar el simple porcentage de grasa corporal (%GC) derivada directamente por médio del análisis de impedância bioeléctrica (BIA) con el derivada de la Segal et al (1988) la ecuación que utiliza el valor de la resistência BIA, em lãs mujeres obesas y con sobrepeso. Métodos: Este estudio, realizado con 86 mujeres adultas (50,5 ± 11,0 años de edad). El peso corporal y la altura se mide y calcula el índice de masa corporal (IMC). %GC fue evaluado por BIA (Biodynamics® model 450) y la ecuación de Segal. Resultados: %GC derivados de BIA% (38,0 ± 4,6) y Segal et al (1988) (38,7 ± 8,1%) fue similar (p = 0,85). Sin embargo, cuando las mujeres se distribuyeron en dos grupos según su IMC, el sobrepeso (n = 40; IMC= 27,3 ± 1,2 kg/m²) y obesidad (n= 46; IMC= 36,2 ± 5,1 kg/m²), los dos métodos que se presentan los resultados de diferencias significativas (p = 0,000). El %GC de las mujeres con sobrepeso fue de 34,6 ± 3,6% por la BIA y el 30,3 ± 2,1% cuando se calcula por la ecuación Segal. En las mujeres obesas, el BF% fue 41,0 ± 3,0% y el 46,0 ± 2,6%, respectivamente. Conclusión: BIA sobrestimado %GC en sobrepeso (+14,2%; +3,0 kg) y subestimado en obesos (-10,9; -4,4 kg) las mujeres. Abstract in english Introduction: Overweight and obesity are risk factors to appearance of cardiovascular diseases and anthropometry is important as clinical tool for planning and health policymaking at population level. Thus, aim of this work was to compare the simple body fat percentage (%BF) obtained straight by bio [...] eletric impedance (BIA) to the one obtained by the equation of Segal et al (1988), which uses the BIA resistance value, overweight among adult women. Methods: This study conducted with 86 adult women (50.5 ± 11.0 years old). Body weight and height were measured and estimated the body mass index (BMI). %BF was assessed by BIA (Biodynamics® model 450) and Segal equation. Results: %BF derived from BIA (38.0 ± 4.6%) and Segal et al (1988) (38.7 ± 8.1%) were similar (p=0.85). However, when the women were distributed, in two groups based on their BMI, overweight (n=40; BMI= 27.3 ± 1.2 kg/m²) and obesity (n=46; BMI= 36.2 ± 5.1 kg/m²), the two methods presented results significant different (p=0.000). The %BF of overweight women was 34.6±3.6% by BIA and 30.3±2.1% when estimated by Segal equation. In obese women, the %BF was 41.0±3.0% and 46.0±2.6%, respectively. Conclusion: BIA overestimated %BF in overweight (+14.2%; +3.0 kg) and underestimated in obese (-10.9%;-4.4 kg) women.

G. D., Pimentel; A. B., Bernhard; M. R. P., Frezza; A. E. M., Rinaldi; R. C., Burini.

 
 
 
 
221

Bioelectric impedance overestimates the body fat in overweight and underestimates in Brazilian obese women: a comparation with Segal equation 1 Impedancia bioeléctrica sobrestima la grasa corporal con sobrepeso y subestima en mujeres brasileñas obesas: una comparación con la ecuación Segal  

Directory of Open Access Journals (Sweden)

Full Text Available Introduction: Overweight and obesity are risk factors to appearance of cardiovascular diseases and anthropometry is important as clinical tool for planning and health policymaking at population level. Thus, aim of this work was to compare the simple body fat percentage (%BF obtained straight by bioeletric impedance (BIA to the one obtained by the equation of Segal et al (1988, which uses the BIA resistance value, overweight among adult women. Methods: This study conducted with 86 adult women (50.5 ± 11.0 years old. Body weight and height were measured and estimated the body mass index (BMI. %BF was assessed by BIA (Biodynamics® model 450 and Segal equation. Results: %BF derived from BIA (38.0 ± 4.6% and Segal et al (1988 (38.7 ± 8.1% were similar (p=0.85. However, when the women were distributed, in two groups based on their BMI, overweight (n=40; BMI= 27.3 ± 1.2 kg/m² and obesity (n=46; BMI= 36.2 ± 5.1 kg/m², the two methods presented results significant different (p=0.000. The %BF of overweight women was 34.6±3.6% by BIA and 30.3±2.1% when estimated by Segal equation. In obese women, the %BF was 41.0±3.0% and 46.0±2.6%, respectively. Conclusion: BIA overestimated %BF in overweight (+14.2%; +3.0 kg and underestimated in obese (-10.9%;-4.4 kg women.Introducción: El sobrepeso y la obesidad son factores de riesgo para la aparición de enfermedades cardiovasculares y la antropometría es importante como herramienta clínica para la planificación y la formulación de políticas de salud a nivel de la población. Así el objetivo de este trabajo fue comparar el simple porcentage de grasa corporal (%GC derivada directamente por médio del análisis de impedância bioeléctrica (BIA con el derivada de la Segal et al (1988 la ecuación que utiliza el valor de la resistência BIA, em lãs mujeres obesas y con sobrepeso. Métodos: Este estudio, realizado con 86 mujeres adultas (50,5 ± 11,0 años de edad. El peso corporal y la altura se mide y calcula el índice de masa corporal (IMC. %GC fue evaluado por BIA (Biodynamics® model 450 y la ecuación de Segal. Resultados: %GC derivados de BIA% (38,0 ± 4,6 y Segal et al (1988 (38,7 ± 8,1% fue similar (p = 0,85. Sin embargo, cuando las mujeres se distribuyeron en dos grupos según su IMC, el sobrepeso (n = 40; IMC= 27,3 ± 1,2 kg/m² y obesidad (n= 46; IMC= 36,2 ± 5,1 kg/m², los dos métodos que se presentan los resultados de diferencias significativas (p = 0,000. El %GC de las mujeres con sobrepeso fue de 34,6 ± 3,6% por la BIA y el 30,3 ± 2,1% cuando se calcula por la ecuación Segal. En las mujeres obesas, el BF% fue 41,0 ± 3,0% y el 46,0 ± 2,6%, respectivamente. Conclusión: BIA sobrestimado %GC en sobrepeso (+14,2%; +3,0 kg y subestimado en obesos (-10,9; -4,4 kg las mujeres.

G. D. Pimentel

2010-10-01

222

Adipose-derived mesenchymal stem cells markedly attenuate brain infarct size and improve neurological function in rats  

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Full Text Available Abstract Background The therapeutic effect of adipose-derived mesenchymal stem cells (ADMSCs on brain infarction area (BIA and neurological status in a rat model of acute ischemic stroke (IS was investigated. Methods Adult male Sprague-Dawley (SD rats (n = 30 were divided into IS plus intra-venous 1 mL saline (at 0, 12 and 24 h after IS induction (control group and IS plus intra-venous ADMSCs (2.0 × 106 (treated interval as controls (treatment group after occlusion of distal left internal carotid artery. The rats were sacrificed and brain tissues were harvested on day 21 after the procedure. Results The results showed that BIA was larger in control group than in treatment group (p Conclusions ADMSC therapy significantly limited BIA and improved sensorimotor dysfunction after acute IS.

Sun Cheuk-Kwan

2010-06-01

223

Non-magnetic semiconductor spin transistor  

CERN Document Server

We propose a spin transistor using only non-magnetic materials that exploits the characteristics of bulk inversion asymmetry (BIA) in (110) symmetric quantum wells. We show that extremely large spin splittings due to BIA are possible in (110) InAs/GaSb/AlSb heterostructures, which together with the enhanced spin decay times in (110) quantum wells demonstrates the potential for exploitation of BIA effects in semiconductor spintronics devices. Spin injection and detection is achieved using spin-dependent resonant interband tunneling and spin transistor action is realized through control of the electron spin lifetime in an InAs lateral transport channel using an applied electric field (Rashba effect). This device may also be used as a spin valve, or a magnetic field sensor. The electronic structure and spin relaxation times for the spin transistor proposed here are calculated using a nonperturbative 14-band k.p nanostructure model.

Hall, K C; Gundogdu, K; Flatté, M E; Boggess, T F; Lau, Wayne H.; Flatte, Michael E.; Boggess, Thomas F.

2003-01-01

224

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)

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.

Maurício Nunes Rodrigues

2001-08-01

225

Spin-orbit-induced hole spin relaxation in InAs and GaAs quantum dots  

Science.gov (United States)

We study the effect of valence band spin-orbit interactions (SOI) on the acoustic phonon-assisted spin relaxation of holes confined in quantum dots (QDs). Heavy hole-light hole (hh-lh) mixing and all the spin-orbit terms arising from zinc-blende bulk inversion asymmetry (BIA) are considered on equal footing in a fully three-dimensional Hamiltonian. We show that hh-lh mixing and BIA have comparable contributions to the hole spin relaxation in self-assembled QDs, but BIA becomes dominant in gated QDs. Simultaneously accounting for both mechanisms is necessary for quantitatively correct results in quasi-two-dimensional QDs. The dependence of the hole spin relaxation on the QD geometry and spin splitting energy is drastically different from that of electrons, with a non-monotonic behavior which results from the interplay between SOI terms. Our results reconcile contradictory predictions of previous theoretical works and are consistent with experiments.

Climente, J. I.; Segarra, C.; Planelles, J.

2013-09-01

226

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

Science.gov (United States)

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.

Mylott, Elliot; Kutschera, Ellynne; Widenhorn, Ralf

2014-05-01

227

Transcript and metabolite profiling in cell cultures of 18 plant species that produce benzylisoquinoline alkaloids.  

Science.gov (United States)

Benzylisoquinoline alkaloids (BIAs) are a large and diverse group of ~2500 specialized metabolites found predominantly in plants of the order Ranunculales. Research focused on BIA metabolism in a restricted number of plant species has identified many enzymes and cognate genes involved in the biosynthesis of compounds such as morphine, sanguinarine and berberine. However, the formation of most BIAs remains uncharacterized at the molecular biochemical level. Herein a compendium of sequence- and metabolite-profiling resources from 18 species of BIA-accumulating cell cultures was established, representing four related plant families. Our integrated approach consisted of the construction of EST libraries each containing approximately 3500 unigenes per species for a total of 58,787 unigenes. The EST libraries were manually triaged using known BIA-biosynthetic genes as queries to identify putative homologs with similar or potentially different functions. Sequence resources were analyzed in the context of the targeted metabolite profiles obtained for each cell culture using electrospray-ionization and collision-induced dissociation mass spectrometry. Fragmentation analysis was used for the identification or structural characterization coupled with the relative quantification of 72 BIAs, which establishes a key resource for future work on alkaloid biosynthesis. The metabolite profile obtained for each species provides a rational basis for the prediction of enzyme function in BIA metabolism. The metabolic frameworks assembled through the integration of transcript and metabolite profiles allow a comparison of BIA metabolism across several plant species and families. Taken together, these data represent an important tool for the discovery of BIA biosynthetic genes. PMID:22424601

Farrow, Scott C; Hagel, Jillian M; Facchini, Peter J

2012-05-01

228

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

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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.

David J Frantz

2013-03-01

229

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

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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.

Marzena Wielanek

2013-02-01

230

L-dex ratio in detecting breast cancer-related lymphedema: reliability, sensitivity, and specificity.  

Science.gov (United States)

Advances in bioelectrical impedance analysis (BIA) permit the assessment of lymphedema by directly measuring lymph fluid changes. The objective of the study was to examine the reliability, sensitivity, and specificity of cross-sectional assessment of BIA in detecting lymphedema in a large metropolitan clinical setting. BIA was used to measure lymph fluid changes. Limb volume by sequential circumferential tape measurement was used to validate the presence of lymphedema. Data were collected from 250 women, including healthy female adults, breast cancer survivors with lymphedema, and those at risk for lymphedema. Reliability, sensitivity, specificity and area under the ROC curve were estimated. BIA ratio, as indicated by L-Dex ratio, was highly reliable among healthy women (ICC=0.99; 95% CI = 0.99 - 0.99), survivors at-risk for lymphedema (ICC=0.99; 95% CI = 0.99 - 0.99), and all women (ICC=0.85; 95% CI = 0.81 - 0.87); reliability was acceptable for survivors with lymphedema (ICC=0.69; 95% CI = 0.54 to 0.80). The L-Dex ratio with a diagnostic cutoff of >+7.1 discriminated between at-risk breast cancer survivors and those with lymphedema with 80% sensitivity and 90% specificity (AUC=0.86). BIA ratio was significantly correlated with limb volume by sequential circumferential tape measurement. Cross-sectional assessment of BIA may have a role in clinical practice by adding confidence in detecting lymphedema. It is important to note that using a cutoff of L-Dex ratio >+7.1 still misses 20% of true lymphedema cases, it is important for clinicians to integrate other assessment methods (such as self-report, clinical observation, or perometry) to ensure the accurate detection of lymphedema. PMID:24354107

Fu, M R; Cleland, C M; Guth, A A; Kayal, M; Haber, J; Cartwright, F; Kleinman, R; Kang, Y; Scagliola, J; Axelrod, D

2013-06-01

231

Czy istnieje ryzyko karmienia mieszankami sztucznymi?  

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Full Text Available Mleko modyfikowane powinno by? stosowane tylko wtedy, gdy karmienie naturalne jest niewystarczaj?ce. Obecnie produkowane mieszanki mleczne maj? sk?ad tak zmieniony, aby jak najbardziej przypomina? mleko kobiece. Innym bia?kiem stosowanym w ?ywieniu dzieci jest ro?linne bia?ko soi. Te dwa rodzaje pokarmów, wywodz?cych si? z mleka krowiego i soi, mog? zast?pi? mleko kobiece, ale mog? te? stwarza? pewne zagro?enia, i dlatego powinny by? stosowane tylko w sytuacjach, gdy pe?ne karmienie naturalne nie jest mo?liwe.

Ma?gorzata ?yszkowska

2000-06-01

232

M-[[sup 125]I]iodoaniline: a useful reagent for radiolabeling biotin  

Energy Technology Data Exchange (ETDEWEB)

Biotinyl-m-[[sup 125]I]iodoanilide (BIA) was synthesized by coupling biotin to m-[[sup 125]I]iodoaniline via a mixed anhydride reaction. m-[[sup 125]I]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).

Khawli, L.A.; Kassis, A.I. (Harvard Medical School, Boston, MA (United States))

1992-04-01

233

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)

1992-04-01

234

Looking for a road to get out of poverty. Is the current allocation of public spending on education in Colombia helping?  

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Full Text Available This paper presents a methodology to explore the impact on poverty of the public spending on education. The methodology consists of two approaches: Benefit Incidence Analysis (BIA and behavioral approach. BIA considers the cost and use of the educational service, and the distribution of the benefits among groups of income. Regarding the behavioral approach, we use a Probit model of schooling attendance, in order to determine the influence of public spending on the probability for the poor to attend the school. As a complement, a measurement of targeting errors in the allocation of public spending is included in the methodology.

Erick Schokkaert

2004-01-01

235

LOOKING FOR A ROAD TO GET OUT OF POVERTY: IS THE CURRENT ALLOCATION OF PUBLIC SPENDING ON EDUCATION IN COLOMBIA HELPING?  

Scientific Electronic Library Online (English)

Full Text Available SciELO Colombia | Language: English Abstract in english This paper presents a methodology to explore the impact on poverty of the public spending on education. The methodology consists of two approaches: Benefit Incidence Analysis (BIA) and behavioral approach. BIA considers the cost and use of the educational service, and the distribution of the benefit [...] s among groups of income. Regarding the behavioral approach, we use a Probit model of schooling attendance, in order to determine the influence of public spending on the probability for the poor to attend the school. As a complement, a measurement of targeting errors in the allocation of public spending is included in the methodology.

BLANCA CECILIA, ZULUAGA DÍAZ; ERIK, SCHOKKAERT.

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Dicty_cDB: VSB260  

Full Text Available VS (Link to library) VSB260 (Link to dictyBase) - - - Contig-U10064-1 VSB260Z (Link to Original sequence. 44 2.0 1 BE995627 |BE995627.1 UI-M-CG0p-bia -f-01-0-UI.s1 NIH_BMAP_Ret4_S2 Mus musculus cDNA cl one UI-M-CG0p-bia -f-01-0-UI 3', mRNA sequence. 44 2.0 1 AL512346 |AL

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Phase sensitive spectral domain interferometry for label free biomolecular interaction analysis and biosensing applications  

Science.gov (United States)

Biomolecular interaction analysis (BIA) plays vital role in wide variety of fields, which include biomedical research, pharmaceutical industry, medical diagnostics, and biotechnology industry. Study and quantification of interactions between natural biomolecules (proteins, enzymes, DNA) and artificially synthesized molecules (drugs) is routinely done using various labeled and label-free BIA techniques. Labeled BIA (Chemiluminescence, Fluorescence, Radioactive) techniques suffer from steric hindrance of labels on interaction site, difficulty of attaching labels to molecules, higher cost and time of assay development. Label free techniques with real time detection capabilities have demonstrated advantages over traditional labeled techniques. The gold standard for label free BIA is surface Plasmon resonance (SPR) that detects and quantifies the changes in refractive index of the ligand-analyte complex molecule with high sensitivity. Although SPR is a highly sensitive BIA technique, it requires custom-made sensor chips and is not well suited for highly multiplexed BIA required in high throughput applications. Moreover implementation of SPR on various biosensing platforms is limited. In this research work spectral domain phase sensitive interferometry (SD-PSI) has been developed for label-free BIA and biosensing applications to address limitations of SPR and other label free techniques. One distinct advantage of SD-PSI compared to other label-free techniques is that it does not require use of custom fabricated biosensor substrates. Laboratory grade, off-the-shelf glass or plastic substrates of suitable thickness with proper surface functionalization are used as biosensor chips. SD-PSI is tested on four separate BIA and biosensing platforms, which include multi-well plate, flow cell, fiber probe with integrated optics and fiber tip biosensor. Sensitivity of 33 ng/ml for anti-IgG is achieved using multi-well platform. Principle of coherence multiplexing for multi-channel label-free biosensing applications is introduced. Simultaneous interrogation of multiple biosensors is achievable with a single spectral domain phase sensitive interferometer by coding the individual sensograms in coherence-multiplexed channels. Experimental results demonstrating multiplexed quantitative biomolecular interaction analysis of antibodies binding to antigen coated functionalized biosensor chip surfaces on different platforms are presented.

Chirvi, Sajal

238

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)

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.

Valeria Bender Braulio

2010-06-01

239

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)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese 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.

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

240

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  

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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 (HEIGHT²/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.

Cassiano Ricardo Rech

2010-04-01

 
 
 
 
241

Análise comparativa de métodos de avaliação da composição corporal em homens sadios e em pacientes com doença pulmonar obstrutiva crônica: antropometria, impedância bioelétrica e absortiometria de raios-X de dupla energia  

Scientific Electronic Library Online (English)

Full Text Available SciELO Venezuela | Language: Portuguese Abstract in portuguese O trabalho teve, como objetivo principal, verificar se a antropometria (ANT) e a impedância bioelétrica (BIA) fornecem resultados concordantes com os obtidos pela absortiometria de raios-X de dupla energia (DXA), quanto à massa (MG) e à porcentagem de gordura (%GC), à massa livre de gordura corporal [...] (MLG) e ao índice de MLG (IMLG= MLG/estatura²), em indivíduos adultos (³ 50 anos), do sexo masculino, sadios (n=23) e em pacientes com doença pulmonar obstrutiva crônica (DPOC) (n=24). As comparações entre as técnicas de composição do corpo foram feitas utilizando ANOVA por medidas repetidas; para análise de concordância, utilizou-se o procedimento de Bland & Altman. Resultados e Conclusões: 1) valores obtidos no grupo sadio foram significantemente diferentes dos observados no grupo com DPOC; 2) não foram observadas diferenças significantes, nos indivíduos sadios, entre DXA ´ BIA e entre DXA ´ ANT; em DPOC, a comparação entre DXA ´ BIA revelou, para BIA, valores estatisticamente maiores para MG e %GC e menores para MLG e IMLG; na comparação DXA ´ ANT, não houve diferenças significantes entre as variáveis; 3) a aplicação do teste de Bland & Altman, em ambos os grupos, mostrou falta de concordância na comparação da BIA com DXA e, também, da ANT com DXA; verificou-se, também, superestimação da gordura corporal e subestimação da MLG pela BIA, em relação à DXA. Abstract in english Comparative analysis of body composition assessment methods in healthy men and in chronic obstructive pulmonary disease patients: anthropometry, bioelectrical impedance and dual-energy X-ray absorptiometry. The aim of this study was to examine the agreement between the results of body fat (BF and BF [...] %), fat-free mass (FFM) and FFM index (FFMI= FFM/height²) as estimated by skinfold anthropometry (ANT), bioelectrical impedance (BIA) and dual-energy X-ray absorptiometry (DXA) in two groups of men (³ 50 y), one comprising healthy individuals (n=23) and the other, patients with chronic obstructive pulmonary disease (COPD) (n=24). Comparisons between body composition techniques were done by repeated measures ANOVA; the Bland & Altman procedure was used to analyse agreement. Results and Conclusions: 1) comparison between healthy and COPD groups showed significant differences between all studied variables; 2) in the healthy group, values for BF, BF% , FFM and FFMI were not significantly different when BIA or ANT was compared to DXA; however, in COPD, values for BF and BF% were significantly higher and for FFM and FFMI significantly lower when BIA was compared to DXA; in contrast, no differences were shown between values for these variables when ANT was compared with DXA; 3) Bland & Altman test, in both groups, showed no agreement between BIA and DXA and between ANT and DXA; it was also shown that body fat was overestimated and fat free mass underestimated by BIA in relation to DXA.

Ismael, Forte Freitas; Sérgio Alberto, Rupp de Paiva; Irma, Godoy; Suhaila Mahmoud, Smaili Santos; Álvaro Oscar, Campana.

242

78 FR 58270 - Cleveland National Forest, California, SDG&E Master Special Use Permit and Permit To Construct...  

Science.gov (United States)

...application to obtain a Master Special Use Permit (MSUP). The purpose...called the ``SDG&E Master Special Use Permit and Permit to Construct...EIS. The BLM and BIA are joining the Forest Service as federal...to the CNF through a Master Special Use Permit in a manner...

2013-09-23

243

78 FR 2423 - Draft Environmental Impact Statement (DEIS) for the Proposed Shu'luuk Wind Project on the Campo...  

Science.gov (United States)

...with the U.S. Environmental Protection Agency...Shu'luuk Wind Project in San Diego...31690 Church Road, Campo, California...process for the BIA evaluation of the lease...Shu'luuk Wind Project. Subsequent...for the project environmental review on June...Buckman Springs Road, Pine...

2013-01-11

244

Biosíntesis de alcaloides bencilisoquinolínicos  

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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.

Christian Anabí Riley-Saldaña

2012-08-01

245

75 FR 14596 - Family Violence Prevention and Services/Grants for Domestic Violence Shelters/Grants to Native...  

Science.gov (United States)

...primary or secondary victims, psychological trauma, isolation from family...activities. In any case where a contract is let or grant made to an...letting or making of such contract or grant (25 U.S.C...evidenced by receipt of BIA contracts awarded under Public Law...

2010-03-26

246

Buffalo Tiger, Bobo Dean, and the "Young Turks": A Miccosukee Prelude to the 1975 Indian Self-Determination Act  

Science.gov (United States)

An account of the Miccosukees' struggle to wrest control over their own economic destiny from conservative elements within the Bureau of Indian Affairs (BIA) and Department of the Interior is provided. The tenacity of Buffalo Tiger and his tribe with the support of Bobo Dean, Commissioner Bruce and the "Young Turks", helped pave the way for…

Kersey, Harry A., Jr.

2005-01-01

247

Non-invasive assessment of fluid volume status in the interstitium after haemodialysis.  

Science.gov (United States)

During dialysis excess fluid is removed from uraemic patients. The excess fluid is mainly located in the skin and subcutaneous tissues. In this study we wished, with two noninvasive techniques, the IM (impression method) and BIA (bioimpedance analysis), to study what mechanical (IM) and electrical cellular membrane (BIA) effects the fluid withdrawal has on these tissues. The IM measures the resistive force of the tissues when mechanically compressed. From the force curve two parameters are calculated, the F(0), indicative of interstitial tissue pressure and the FT corresponding to the translocation of tissue fluid (interstitial movable water). The BIA phase angle shift (phi), i.e. geometrical angular transformation of the ratio between reactance and resistance, which has been associated with cellular membrane function, was used as a measurement of electrical cellular membrane effects. Twenty patients were studied before and after haemodialysis measuring the F(0), FT and phi. Theresults showed that the patients lost a median of 3.7 kg during the haemodialysis. F(0) increased until after dialysis, but did not reach significant values, whereas FT increased significantly after dialysis, p BIA, (phase angle) signs of changes in the electrical properties of the tissues, possibly reflecting cellular membrane function, could be detected. PMID:10847188

Zdolsek, H J; Lindahl, O A; Sjöberg, F

2000-05-01

248

Validity and reliability of bioelectrical impedance analysis and skinfold thickness in predicting body fat in military personnel.  

Science.gov (United States)

Previous studies show that body composition is related to injury risk and physical performance in soldiers. Thus, valid methods for measuring body composition in military personnel are needed. The frequently used body mass index method is not a valid measure of body composition in soldiers, but reliability and validity of alternative field methods are less investigated in military personnel. Thus, we carried out test and retest of skinfold (SKF), single frequency bioelectrical impedance analysis (SF-BIA), and multifrequency bioelectrical impedance analysis measurements in 65 male and female soldiers. Several validated equations were used to predict percent body fat from these methods. Dual-energy X-ray absorptiometry was also measured, and acted as the criterion method. Results showed that SF-BIA was the most reliable method in both genders. In women, SF-BIA was also the most valid method, whereas SKF or a combination of SKF and SF-BIA produced the highest validity in men. Reliability and validity varied substantially among the equations examined. The best methods and equations produced test-retest 95% limits of agreement below ±1% points, whereas the corresponding validity figures were ±3.5% points. Each investigator and practitioner must consider whether such measurement errors are acceptable for its specific use. PMID:24491619

Aandstad, Anders; Holtberget, Kristian; Hageberg, Rune; Holme, Ingar; Anderssen, Sigmund A

2014-02-01

249

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)

Full Text Available SciELO Spain | Language: English Abstract in spanish 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

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

250

Development and evaluation of a multi-frequency bioelectrical impedance analysis analyzer for estimating acupoint composition.  

Science.gov (United States)

The purpose of this study was to suggest a new method of estimating acupoint compositions by using a multi-frequency bioelectrical impedance analysis (MF-BIA) method at 5 kHz, 50 kHz and 200 kHz within 2 cm of acupoints divided into local segments. To verify the system developed, we confirmed the stable occurrence of a constant current at every frequency, regardless of the impedance connected to the electrodes. Moreover, we found left and right distal bicep brachii aponeurosis to be identical by using ultrasound imaging, and we analyzed the repeatability of the findings by making 10 consecutive sets of measurements (p > 0.05). To evaluate the practical use of the acupoint composition, we used the MF-BIA analyzer to measure the left and right LU3, LU4, and LU9 at the lung meridian. We confirmed that the potentials generated were equal to the changes in the cell membrane function, which were caused by the applied frequency (p BIA analyzer measurements corresponded to the acupoint components by comparing the left and right potentials generated (p > 0.05). Hence, we conclude that the MF-BIA analyzer can be used to estimate the acupoint composition based on the acupoint state. PMID:24513346

Kim, Soo-Byeong; Lee, Na-Ra; Shin, Tae-Min; Lee, Yong-Heum

2014-02-01

251

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

Science.gov (United States)

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…

Palmer, Mark H.

2012-01-01

252

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

Science.gov (United States)

...Indian-owned and controlled businesses. This rule supplements...Regulatory Planning and Review (Executive Order...Flexibility Act C. Small Business Regulatory Enforcement...Arden West, 2200 Harvard Street, Sacramento...responsible small business concerns, the set-aside...asked if BIA could review the TERO list...

2012-07-26

253

78 FR 65589 - Leasing of Osage Reservation Lands for Oil and Gas Mining  

Science.gov (United States)

...BIA-2013-0003; 134/A0A511010/AAK1001000] RIN 1076-AF17 Leasing of Osage Reservation Lands for Oil and Gas Mining AGENCY...the result of a negotiated rulemaking and would update the leasing procedures and rental, production, and royalties...

2013-11-01

254

Can abdominal bioelectrical impedance refine the determination of visceral fat from waist circumference?  

International Nuclear Information System (INIS)

Ryo et al (2005 Diabetes Care 28 451–3) reported a new method for measuring the visceral fat area (VFA) by combining abdominal bioelectrical impedance analysis (BIA) with measurement of waist circumference (WC), but very few methodological details were provided. Furthermore, the study did not test the use of WC alone as an indicator of VFA even though others had previously reported a strong correlation. We sought to determine the optimal measurement technique and analysis for measuring VFA by abdominal BIA and WC. 18 volunteers (age 23–64 years) underwent measurement of WC, abdominal impedance (Bodystat 500 four-electrode system) and a single cross-sectional CT scan at the umbilicus. VFA derived using WC3 and measurements of abdominal impedance from electrode pairs sited at the flank predicted the value of VFA measured by CT with correlation r = 0.904 (p 1.9 alone, without involving BIA at all, provided a similar correlation (r = 0.923). Our small preliminary study shows that abdominal BIA is potentially a practicable non-invasive technique for measurement of VFA but casts doubt on whether it adds any value to the use of WC alone. Larger studies are now required to test this finding. (note)

2009-07-01

255

23 CFR 661.57 - How is a list of deficient bridges to be generated?  

Science.gov (United States)

...year by the FHWA based on the annual April update of the NBI. The NBI is based on data from the inspection of all bridges...list of non-BIA IRR bridges will be obtained from the NBI. These lists would form the basis for identifying...

2009-04-01

256

Testimony [of John C. Rainer]. Hearings Before the Senate Appropriations Subcommittee on the Interior and Related Affairs, May 11, 1973.  

Science.gov (United States)

The testimony of John C. Rainer, Director of the American Indian Scholarship Program, before the Senate Appropriations Subcommittee on the Interior and Related Affairs (May 1973) examined the Senate's reduction of the Bureau of Indian Affairs (BIA) appropriation for 1973-74. Rainer explained that the $19,938,000 requested for the year, $10,000,000…

Rainer, John C.

257

Bureau of Indian Affairs Safety of Dams Program. 1996 Intermediate SEED Examination Report for La Jara Dam, Jicarilla Apache Indian Reservation, New Mexico.  

Science.gov (United States)

La Jara Dam is located on the Jucarilla Apache Indian reservation in north-central New Mexico about 20 miles south of the town of Dulce, New Mexico. The dam is operated by the Jicarilla Indian Tribe and is under the jurisdiction of the BIA. The dam was or...

W. Y. Young

1997-01-01

258

76 FR 76634 - Establishment of the Indian Oil Valuation Negotiated Rulemaking Committee  

Science.gov (United States)

...notice of intent to establish an Indian Oil Valuation Negotiated Rulemaking...notice of intent to establish an Indian Oil Valuation Negotiated Rulemaking...representative of the Jicarilla Apache Nation. One additional comment...inclusion from the Bureau of Indian Affairs (BIA). While...

2011-12-08

259

Notes on Pyrenomycetes and Coelomycetes from Poland l.  

Directory of Open Access Journals (Sweden)

Full Text Available 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.

Andrzej Chlebicki

1991-12-01

260

Navajo Area School Board Association.  

Science.gov (United States)

Founded (October of 1973) to activate direct parental participation in the education of Navajo children, the Navajo Area School Board Association (NASBA) describes its goals in this document as follows: to set meaningful and reliable standards for Navajo education and to cause the Bureau of Indian Affairs (BIA) and educational contractors to meet…

Richards, Bob

 
 
 
 
261

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

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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.

Dalbo Vincent J

2007-11-01

262

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

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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

Liu Li

2012-09-01

263

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)

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.

F. C. Esteves de Oliveira

2008-12-01

264

Different Techniques For Body Composition Assessment  

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Full Text Available The inter-relationships and alter nativity of body composition variables derived from simple anthropometry [BMI and Skin Folds (SFs prediction equations] and Bioelectrical Impedance Analysis (BIA with dual energy x-ray (DXA of healthy sixty nine children (37 boys and 32 girls aged 9.24±1.73 years old were evaluated. The children recruited from public schools in Giza governorate. All of them had BMI ranged between 15th and 85th percentile and were assessed for body composition [percentage body fat (%BF, fat free mass (FFM; kilograms and body fat mass (BFM; kilograms] using Slaughter Skin Folds (SFs prediction equations, BIA and DXA. Repeated ANOVA showed significant differences among the three methods used for the studied variables (p<0.001. In general, Slaughter and BIA are significantly underestimated measured %BF. There is a high correlation between the BMI and both the estimated %BF and BFM (r = 0.67-0.91 for boys and r = 0.87 to 0.97 for the girls. Partial correlation among the estimated % BF derived from the three different methods in both genders revealed a high significant correlations between the estimated %BF derived from DXA and Slaughter equations (r = 0.76 for boys and 0.97 for girls. While the correlation between the estimated %BF derived from DXA and BIA was 0.77 for boys in contrast to girls where it is low significant correlation (r = 0.387. Results suggest that BIA has limited utility in estimating body composition, where as BMI and SFs seem to be more useful in estimating body composition. In conclusion all methods are significantly under estimated body fatness as determined by DXA and the various methods are not interchangeable.

Nayera E. Hassan

2008-01-01

265

Change in fat-free mass assessed by bioelectrical impedance, total body potassium and dual energy X-ray absorptiometry during prolonged weight loss.  

DEFF Research Database (Denmark)

A total of 16 obese women (body mass index (BMI) 30-43 kg m(-2)) participated in a weight reduction study. Before and after a weight loss of 11.7 +/- 7.4 kg (mean +/- SD), body composition was assessed by dual energy X-ray absorptiometry (DXA), and total body potassium counting (TBK). These measurements were compared with bioimpedance analysis (BIA) by applying 11 predictive BIA equations published in the literature. Predictive equations for the present study population were developed, with the use of fat-free mass (FFM) as assessed by TBK and DXA as references in multiple regression analysis. The results of the BIA equations varied widely; FFM was generally overestimated by BIA as compared with DXA and TBK before and after weight loss. During weight loss, the FFM did not change, as estimated by DXA (1.3 +/- 2.3 kg, p > 0.05) and TBK (0.9 +/- 2.9 kg, p > 0.05). The recorded change in impedance (R) was also insignificant. Three BIA equations from the literature, which were not specific for the degree of obesity in the present study group, predicted changes in FFM (from 0.5 + 3.6 to 2.4 +/- 4.4kg, p > 0.05) that were comparable with those estimated by the reference methods. Eight equations from the literature, which included equations specific for the degree of obesity in the study group, and the group specific equations developed for the present population predicted significant changes in FFM during weight loss (from 2.3 +/- 3.0 to 5.0 +/- 3.0 kg, p < 0.05). We conclude that in obesity most predictive equations are unable to predict static body composition and are not reproducible for individuals over time. However, a significant or insignificant change in R (without accompanying predictive equations) may be used to indicate whether FFM is lost or preserved in groups of obese subjects.

Hendel, H W; Gotfredsen, A

1996-01-01

266

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)

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.

C. M.ª Piernas Sánchez

2010-04-01

267

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

Directory of Open Access Journals (Sweden)

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.

Katarzyna Robaszkiewicz

2011-06-01

268

Long-term variability of solar direct and global radiation derived from ISCCP data and comparison with reanalysis data  

Energy Technology Data Exchange (ETDEWEB)

Annual variations of solar radiation at the Earth's surface may be strong and could seriously harm the return of investment for solar energy projects. This paper analyzes the long-term variability of broadband surface solar radiation based on 18 years of three-hourly satellite observations from the International Satellite Cloud Climatology Project (ISCCP). Direct normal irradiance (DNI) and global horizontal irradiance (GHI) at the surface are derived through radiative transfer calculations, using different physical input parameters describing the actual composition of the atmosphere. Validation of DNI is performed with two years of high resolution Meteosat-derived irradiance. Monthly averages show an average mean bias deviation of -1.7%. Results for DNI from the 18-year time series indicate strong and significant increases for several regions in the subtropics up to +4W/m{sup 2} per year, with exception of Australia, where a small decrease in DNI of -1W/m{sup 2} per year is observed. Inter-annual variability for DNI is very strong and sometimes exceeds 20%. Comparisons of calculations with and without volcanic aerosol reveal a decrease of up to 16% in annual averages due to volcano eruptions. Changes in GHI are much smaller and less significant. Results show a maximum increase of 0.8W/m{sup 2} per year and an annual variability of less than 4%. Volcano eruptions reduce annual averages of GHI by less than 2.2%. The two reanalysis data sets investigated differ strongly from each other and are far off the validated results derived from satellite data. Trends are weaker and less significant or even of opposite sign. (author)

Lohmann, S.; Mayer, B.; Meyer, R. [Institut fuer Physik der Atmosphaere, Deutsches Zentrum fuer Luft- und Raumfahrt, DLR Oberpfaffenhofen, D-82234 Wessling (Germany); Schillings, C. [Institut fuer Technische Thermodynamik, Deutsches Zentrum fuer Luft- und Raumfahrt, DLR Stuttgart, Pfaffenwaldring 38-40, D-70503 Stuttgart (Germany)

2006-11-15

269

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

Directory of Open Access Journals (Sweden)

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.

R. J. Sheesley

2008-12-01

270

Soil mobility of surface applied polyaromatic hydrocarbons in response to simulated rainfall.  

Science.gov (United States)

Polyaromatic hydrocarbons (PAHs) are emitted from a variety of sources and can accumulate on and within surface soil layers. To investigate the level of potential risk posed by surface contaminated soils, vertical soil column experiments were conducted to assess the mobility, when leached with simulated rainwater, of six selected PAHs (naphthalene, phenanthrene, fluoranthene, pyrene, benzo(e)pyrene and benzo(ghi)perylene) with contrasting hydrophobic characteristics and molecular weights/sizes. The only PAH found in the leachate within the experimental period of 26 days was naphthalene. The lack of migration of the other applied PAHs was consistent with their low mobilities within the soil columns which generally paralleled their log K oc values. Thus, only 2.3 % of fluoranthene, 1.8 % of pyrene, 0.2 % of benzo(e)pyrene and 0.4 % of benzo(ghi)perylene were translocated below the surface layer. The PAH distributions in the soil columns followed decreasing power relationships with 90 % reductions in the starting levels being shown to occur within a maximum average depth of 0.94 cm compared to an average starting depth of 0.5 cm. A simple predictive model identifies the extensive time periods, in excess of 10 years, required to mobilise 50 % of the benzo(e)pyrene and benzo(ghi)perylene from the surface soil layer. Although this reduces to between 2 and 7 years for fluoranthene and pyrene, it is concluded that the possibility of surface-applied PAHs reaching and contaminating a groundwater aquifer is unlikely. PMID:24297461

Revitt, D Michael; Balogh, Tamas; Jones, Huw

2014-03-01

271

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

Directory of Open Access Journals (Sweden)

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.

Allen Barnett

2012-03-01

272

Solid vapor pressure for five heavy PAHs via the Knudsen effusion method  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Polycyclic aromatic hydrocarbons (PAHs) are compounds resulting from incomplete combustion and many fuel processing operations, and they are commonly found as subsurface environmental contaminants at sites of former manufactured gas plants. Knowledge of their vapor pressures is the key to predict their fate and transport in the environment. The present study involves five heavy PAHs, i.e. benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[ghi]perylene, indeno[1,2,3-cd]pyrene, and dibenz[a,h]an...

Fu, Jinxia; Suuberg, Eric M.

2011-01-01

273

Evolutionary Divergence of Duplicate Copies of the Growth Hormone Gene in Suckers (Actinopterygii: Catostomidae)  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Catostomid fishes (suckers) have duplicate copies of the growth hormone gene and other nuclear genes, due to a genome duplication event early in the group’s history. Yet, paralogs of GH in suckers are more than 90% conserved in nucleotide (nt) and amino acid (aa) sequence. Within paralogs across species, variation in nt and aa sequence averages 3.33% and 4.46% for GHI, and 3.22% and 2.43% for GHII, respectively. Selection tests suggest that the two GH paralogs are under strong purifying sel...

Bart Jr, Henry L.; Reneau, Paulette C.; Doosey, Michael H.; Bell, Charles D.

2010-01-01

274

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

Energy Technology Data Exchange (ETDEWEB)

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.

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

2014-03-01

275

AcEST?Adiantum capillus-veneris EST)?DNA????????????: DK958894  

Full Text Available TST39A01NGRL0003_D12 TST39 Adiantum capillus-veneris mRNA. clone: TST39A01NGRL0003_D12. 5' end s AKKIVAVLYEGKEYAANNPKFLGCTENALGIRDWLQGKGHKYVVTADKEGVNCEL EKHIP 299 +KKIV V Y+ EYA NP FLGC ENALGIRDWL+ +GH+Y+ AKKIVAVLYEGKEYAANNPKFLGCTENALGIRDWLQGKGHKYVVTADKEGVNCEL 284 H G+KKIV V Y+G EYA NP F+GC E ALGIR+WL+ KGH Y+V AKKIVAVLYEGKEYAANNPKFLGCTENALGIRDWLQGKGHKYVVTADKEGVNCEL EKHI 296 G+KK+V V Y+G EYA NP F+GC ++ALGIR WL+ KGH+Y +VT DKEG+NCEL EKHI Sbjct: 28 GSKKVVGVFYKGGEYADKNPNFVGCVDSALGIRGWL

276

China (People’s Republic of):- Policies to Enhance Agricultural Innovation and Productivity: Focus on China - Workshop - OECD  

...MOA Presentations: An overview of OECD agricultural policy analysis -Carmel Cahill, OECD - PPT Chinarsquo;s agricultural support policy -Ni Hongxing, Director General, ...in China in light of OECDrsquo;s support indicators -Andrzej Kwiecinski, OECD - PPT Coffee/tea break Chinarsquo;s support policies in the period ...of rapid urbanization -Zhang Hongyu, Director General, MoA - PPT Factors and policies to favour diversification of rural economy: OECD experience -Catherine Moreddu, ...OECD - PPT Lead discussants: Li Xiande, Professor, CAAS; William Niebur, Vice President, Dupont/GHI Open discussion: All ...

277

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)

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.

Martín Moreno Vicente

2003-01-01

278

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)

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.

Ezequiel Moreira Gonçalves

2010-03-01

279

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)

Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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.

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.

280

Global horizontal irradiance clear sky models : implementation and analysis.  

Energy Technology Data Exchange (ETDEWEB)

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.

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

2012-03-01

 
 
 
 
281

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

1999-07-05

282

Infrared spectroscopy of matrix-isolated polycyclic aromatic hydrocarbon cations. 2. The members of the thermodynamically most favorable series through coronene  

Science.gov (United States)

Gaseous, ionized polycyclic aromatic hydrocarbons (PAHs) are thought to be responsible for a very common family of interstellar infrared emission bands. Here the near- and mid-infrared spectra of the cations of the five most thermodynamically favored PAHs up to coronene:phenanthrene, pyrene, benzo[e]pyrene, benzo[ghi]perylene, and coronene, are presented to test this hypothesis. For those molecules that have been studied previously (pyrene, pyrene-d10, and coronene), band positions and relative intensities are in agreement. In all of these cases we report additional features. Absolute integrated absorbance values are given for the phenanthrene, perdeuteriophenanthrene, pyrene, benzo[ghi]perylene, and coronene cations. With the exception of coronene, the cation bands corresponding to the CC modes are typically 2-5 times more intense than those of the CH out-of-plane bending vibrations. For the cations, the CC stretching and CH in-plane bending modes give rise to bands that are an order of magnitude stronger than those of the neutral species, and the CH out-of-plane bends produce bands that are 5-20 times weaker than those of the neutral species. This behavior is similar to that found in most other PAH cations studied to date. The astronomical implications of these PAH cation spectra are also discussed.

Hudgins, D. M.; Allamandola, L. J.

1995-01-01

283

Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbon Cations. Part 2; The Members of the Thermodynamically Most Favorable Series through Coronene  

Science.gov (United States)

Gaseous, ionized polycyclic aromatic hydrocarbons (PAHS) are thought to be responsible for a very common family of interstellar infrared emission bands. Here the near- and mid-infrared spectra of the cations of the five most thermodynamically favored PAHs up to coronene: phenanthrene, pyrene, benzo[e]pyrene, benzo-[ghi]perylene, and coronene, are presented to test this hypothesis. For those molecules that have been studied previously (pyrene, pyrene-d(sub 10), and coronene), band positions and relative intensities are in agreement. In all of these cases we report additional features. Absolute integrated absorbance values are given for the phenanthrene, perdeuteriophenanthrene, pyrene, benzo[ghi]perylene, and coronene cations. With the exception of coronene, the cation bands corresponding to the CC modes are typically 2-5 times more intense than those of the CH out-of-plane bending vibrations. For the cations, the CC stretching and CH in-plane bending modes give rise to bands that are an order of magnitude stronger than those of the neutral species, and the CH out-of-plane bends produce bands that are 5-20 times weaker than those of the neutral species. This behavior is similar to that found in most other PAH cations studied to date. The astronomical implications of these PAH cation spectra are also discussed.

Hudgins, D. M.; Allamandola, L. J.

1995-01-01

284

Infrared Spectroscopy of Matrix-Isolated Polycyclic Aromatic Hydrocarbon Cations  

Science.gov (United States)

Gaseous, ionized polycyclic aromatic hydrocarbons (PAHs) are thought to be responsible for a very common family of interstellar infrared emission bands. Here the near- and mid-infrared spectra of the cations of the five most thermodynamically favored PAHs up to coronene: phenanthrene, pyrene, benzo(e)pyrene, benzo-(ghi)perylene, and coronene, are presented to test this hypothesis. For those molecules that have been studied previously (pyrene, pyrene-d(sub 10), and coronene), band positions and relative intensities are in agreement. In all of these cases we report additional features. Absolute integrated absorbance values are given for the phenanthrene, perdeuteriophenanthrene, pyrene, benzo(ghi]perylene, and coronene cations. With the exception of coronene, the cation bands corresponding to the CC modes are typically 2-5 times more intense than those of the CH out-of-plane bending vibrations. For the cations, the CC stretching and CH in-plane bending modes give rise to bands that are an order of magnitude stronger than those of the neutral species, and the CH out-of-plane bends produce bands that are 5-20 times weaker than those of the neutral species. This behavior is similar to that found in most other PAH cations studied to date. The astronomical implications of these PAH cation spectra are also discussed.

Hudgins, D. M.; Allamandola, L. J.

1995-01-01

285

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

Energy Technology Data Exchange (ETDEWEB)

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.

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

286

Polycyclic aromatic hydrocarbons in fresh and cold-smoked Atlantic salmon fillets.  

Science.gov (United States)

The occurrence of polycyclic aromatic hydrocarbons (PAHs) in smoked fish as a consequence of cold smoking was studied. Raw fillets of Salmo salar from Norway or the Irish Sea were sampled in a modern smokehouse and examined for PAH content. The same fillets, labeled with an identification number, were sampled immediately after the smoking process and analyzed. Among the investigated compounds, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, benz[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, and benzo[ghi]perylene were detected in both raw and smoked fillets. No significant difference (P < 0.01) was observed between raw and smoked samples in the concentrations of six PAHs, but significant differences were found for fluorene, anthracene, fluoranthene, benz[a]anthracene, and benzo[ghi]perylene. Results confirm that PAHs concentrations in smoked fish are the product of both sea pollution and the smoking process. A modern smoking plant with an external smoke generator and a mild treatment as described here will not add significantly to the concentration of PAHs, except for some compounds. PMID:16715815

Visciano, Pierina; Perugini, Monia; Amorena, Michele; Ianieri, Adriana

2006-05-01

287

Nitrogen and oxygen regulation of Bacillus subtilis nasDEF encoding NADH-dependent nitrite reductase by TnrA and ResDE.  

Science.gov (United States)

The nitrate and nitrite reductases of Bacillus subtilis have two different physiological functions. Under conditions of nitrogen limitation, these enzymes catalyze the reduction of nitrate via nitrite to ammonia for the anabolic incorporation of nitrogen into biomolecules. They also function catabolically in anaerobic respiration, which involves the use of nitrate and nitrite as terminal electron acceptors. Two distinct nitrate reductases, encoded by narGHI and nasBC, function in anabolic and catabolic nitrogen metabolism, respectively. However, as reported herein, a single NADH-dependent, soluble nitrite reductase encoded by the nasDE genes is required for both catabolic and anabolic processes. The nasDE genes, together with nasBC (encoding assimilatory nitrate reductase) and nasF (required for nitrite reductase siroheme cofactor formation), constitute the nas operon. Data presented show that transcription of nasDEF is driven not only by the previously characterized nas operon promoter but also from an internal promoter residing between the nasC and nasD genes. Transcription from both promoters is activated by nitrogen limitation during aerobic growth by the nitrogen regulator, TnrA. However, under conditions of oxygen limitation, nasDEF expression and nitrite reductase activity were significantly induced. Anaerobic induction of nasDEF required the ResDE two-component regulatory system and the presence of nitrite, indicating partial coregulation of NasDEF with the respiratory nitrate reductase NarGHI during nitrate respiration. PMID:9765565

Nakano, M M; Hoffmann, T; Zhu, Y; Jahn, D

1998-10-01

288

Evaluering af læring og læringspotentiale i studieretningsforløb for stx, hhx og htx : Rambøll Management og DPU  

DEFF Research Database (Denmark)

  Nærværende rapport udgør første delrapport på en evaluering af læring og læringspotentiale i studieretningsforløb for stx, hhx og htx. Evalueringen er gennemført af Rambøll Management og Danmark Pædagogiske Universitet for Undervisningsministeriet.   Det overordnede formål med evalueringen er at skabe viden om studieretningsforløbenes virkninger i forhold til udvikling af elevernes studie- og læringsadfærd. Evalueringen løber fra 2006 til 2009 og består af 3 delprojekter, hvor delprojekt 1 gennemføres i foråret/sommeren 2007, delprojekt 2 gennemføres i foråret/sommeren 2008 og delprojekt[ghi1]   gennemføres i foråret/sommeren 2009. I tilknytning til evalueringen gennemføres der seminarer med de skoler, der deltager i evalueringen, hvor formålet på den ene side er at skabe erfaringsudveksling på tværs af de deltagende skoler og på den anden side diskutere, hvordan elevernes studiekompetencer fremmes bedst muligt.  [ghi1]3

Ingerslev, Gitte Holten

2007-01-01

289

Biochemical genomics for gene discovery in benzylisoquinoline alkaloid biosynthesis in opium poppy and related species.  

Science.gov (United States)

Benzylisoquinoline alkaloids (BIAs) are a large, diverse group of ?2500 specialized plant metabolites. Many BIAs display potent pharmacological activities, including the narcotic analgesics codeine and morphine, the vasodilator papaverine, the cough suppressant and potential anticancer drug noscapine, the antimicrobial agents sanguinarine and berberine, and the muscle relaxant (+)-tubocurarine. Opium poppy remains the sole commercial source for codeine, morphine, and a variety of semisynthetic drugs, including oxycodone and buprenorphine, derived primarily from the biosynthetic pathway intermediate thebaine. Recent advances in transcriptomics, proteomics, and metabolomics have created unprecedented opportunities for isolating and characterizing novel BIA biosynthetic genes. Here, we describe the application of next-generation sequencing and cDNA microarrays for selecting gene candidates based on comparative transcriptome analysis. We outline the basic mass spectrometric techniques to perform deep proteome and targeted metabolite analyses on BIA-producing plant tissues and provide methodologies for functionally characterizing biosynthetic gene candidates through in vitro enzyme assays and transient gene silencing in planta. PMID:22999177

Dang, Thu Thuy T; Onoyovwi, Akpevwe; Farrow, Scott C; Facchini, Peter J

2012-01-01

290

Rola pierwiastków metalicznych w biologii grzybów dro?d?opodobnych, ze szczególnym uwzgl?dnieniem funkcji wapnia  

Directory of Open Access Journals (Sweden)

Full Text Available W rozwoju grzybów chorobotwórczych du?? rol? odgrywaj? czynniki fizykochemiczne. Do ich wzrostu niezb?dne s? tak?e pierwiastki metaliczne, takie jak: potas, magnez, ?elazo, cynk, mied?, wap?, gal, mangan, molibden, wanad i skand. S? one kofaktorami enzymów oraz pe?ni? liczne funkcje metaboliczne. Pierwiastki te odgrywaj? rol? w wytwarzaniu zarodników, dojrzewaniu i rozwoju strz?pek, w ró?nych reakcjach enzymatycznych oraz fermentacyjnych, w utlenianiu cukrowców, aktywowaniu wielu uk?adów enzymatycznych, w wi?zaniu si? DNA z czynnikiem transkrypcji, w syntezie RNA. Szczególn? rol? odgrywa wap?. Na metabolizm komórki grzybów wp?ywa za pomoc? kalmoduliny (wieloczynno?ciowego receptora dla jonów Ca2+, cyklofiliny (cytoplazmatycznego wewn?trzkomórkowego bia?ka oraz kalcyneuriny (bia?kowej fosfatazy. Stwierdzono, ?e powszechnie stosowane azolowe leki przeciwgrzybicze (ketokonazol, bifonazol, klotrimazol, mikonazol, ekonazol maj? zdolno?ci blokowania kalmoduliny.

El?bieta Krajewska-Ku?ak

1998-06-01

291

Cryogenic optical position encoders for mechanisms in the JWST optical telescope element simulator (OSIM)  

Science.gov (United States)

The JWST Optical Telescope Element Simulator (OSIM) is a configurable, cryogenic, optical stimulus for high fidelity ground characterization and calibration of JWST's flight instruments. OSIM and its associated Beam Image Analyzer (BIA) contain several ultra-precise, cryogenic mechanisms that enable OSIM to project point sources into the instruments according to the same optical prescription as the flight telescope will image stars - correct in focal surface position and chief ray angle. OSIM's and BIA's fifteen axes of mechanisms navigate according to redundant, cryogenic, absolute, optical encoders - 32 in all operating at or below 100 K. OSIM's encoder subsystem, the engineering challenges met in its development, and the encoders' sub-micron and sub-arcsecond performance are discussed.

Leviton, Douglas B.; Anderjaska, Thomas; Badger, James; Capon, Tom; Davis, Clinton; Dicks, Brent; Eichhorn, William; Garza, Mario; Guishard, Corina; Haghani, Shadan; Hakun, Claef; Haney, Paul; Happs, David; Hovmand, Lars; Kadari, Madhu; Kirk, Jeffrey; Nyquist, Richard; Robinson, F. David; Sullivan, Joseph; Wilson, Erin

2013-09-01

292

Anthropometric methods for obesity screening in schoolchildren: the Ouro Preto Study Métodos de antropometría para la detección de obesidad en escolares: el estudio de Ouro Preto  

Directory of Open Access Journals (Sweden)

Full Text Available Background and aims: Childhood obesity is increasing dramatically in last decades. To evaluate the usefulness of body mass index (BMI, skinfold thickness (ST, waist circumference (WC, and foot-to-foot bioelectrical impedance (BIA-FF for screening for obesity in mixed-race popu lation, using the tetrapolar bioelectrical impedance (BIA-T technique as reference method. Methods and results: A cross-sectional-based population study was performed in the city of Ouro Preto, Brazil, in 2006. Schoolchildren aged 6-15 years (n = 788 was randomly selected according to age and sex stratified by the proportion of students in each schools of the city. Nonparametric receiver operating characteristic (ROC analysis was used to define the sensitivity and specificity for each method studied using the tetrapolar method as reference. The BMI and the BIA-FF were the most suitable for adiposity screening in pre-pubertal and pubertal stages because they present a better balance between sensitivity and specificity, and smaller misclassification. For post-pubertal boys, the BF-ST-D was the best body fat assessment method. Conclusion: The results suggest that BIA-FF and BMI are choice methods for obesity screening in mixed population and that the method choice for body fat screening must be done according to sexual maturity of boys and girls. The present study demonstrates the need to perform studies in wider mixed-race population to determine anthropometric parameters and to examine the predictive ability of methods and cut-offs here elucidated in the development of obesity.Antecedentes y objetivos: La obesidad infantil está aumentando alarmantemente en las últimas décadas. Para evaluar la utilidad del índice de masa corporal (IMC, el grosor del pliegue cutáneo (GPC, la circunferencia de la cintura (CC, y la impedancia bioeléctrica pie-a-pie (BIA-PP para el cribado de la obesidad en poblaciones con diversidad de razas utilizando una técnica de impedancia bioeléctrica tetrapolar (BIA-T como el método de referencia. Métodos y resultados: se realizó un estudio transversal poblacional in la ciudad de Ouro Preto, Brasil, en el 2006. Se distribuyó al azar a escolares de 6-15 años (n = 788, que se seleccionaron en función de la edad y el sexo, estratificados por la proporción de estudiantes en cada colegio de la ciudad. Se utilizó un análisis no paramétrico de curvas ROC para definir la sensibilidad y la especificidad para cada método estudiado empleando el método tetrapolar como referencia. El IMC y la BIA-PP fueron los más idóneos para el cribado de la obesidad en las etapas prepuberales y puberales puesto que presentan un equilibrio mejor entre la sensibilidad y la especificidad y un menor fallo de clasificación. Para los niños prepúberes, el BF-GPC-D fue el mejor método de evaluación de la grasa corporal. Conclusión: Los resultados sugieren que la BIA-PP y el IMC son los métodos de elección para el cribado de la obesidad en poblaciones mixtas y que el método de elección para el cribado de la grasa corporal debe realizarse de acuerdo con la madurez sexual de los chicos y chicas. Este estudio demuestra la necesidad de realizar estudios en poblaciones mixtas más amplias para determinar los parámetros antropológicos y examinar la capacidad predictiva de los métodos y los puntos de corte obtenidos aquí en el desarrollo de la obesidad.

A. P. C. Cándido

2012-02-01

293

Anthropometric methods for obesity screening in schoolchildren: the Ouro Preto Study / Métodos de antropometría para la detección de obesidad en escolares: el estudio de Ouro Preto  

Scientific Electronic Library Online (English)

Full Text Available SciELO Spain | Language: English Abstract in spanish Antecedentes y objetivos: La obesidad infantil está aumentando alarmantemente en las últimas décadas. Para evaluar la utilidad del índice de masa corporal (IMC), el grosor del pliegue cutáneo (GPC), la circunferencia de la cintura (CC), y la impedancia bioeléctrica pie-a-pie (BIA-PP) para el cribado [...] de la obesidad en poblaciones con diversidad de razas utilizando una técnica de impedancia bioeléctrica tetrapolar (BIA-T) como el método de referencia. Métodos y resultados: se realizó un estudio transversal poblacional in la ciudad de Ouro Preto, Brasil, en el 2006. Se distribuyó al azar a escolares de 6-15 años (n = 788), que se seleccionaron en función de la edad y el sexo, estratificados por la proporción de estudiantes en cada colegio de la ciudad. Se utilizó un análisis no paramétrico de curvas ROC para definir la sensibilidad y la especificidad para cada método estudiado empleando el método tetrapolar como referencia. El IMC y la BIA-PP fueron los más idóneos para el cribado de la obesidad en las etapas prepuberales y puberales puesto que presentan un equilibrio mejor entre la sensibilidad y la especificidad y un menor fallo de clasificación. Para los niños prepúberes, el BF-GPC-D fue el mejor método de evaluación de la grasa corporal. Conclusión: Los resultados sugieren que la BIA-PP y el IMC son los métodos de elección para el cribado de la obesidad en poblaciones mixtas y que el método de elección para el cribado de la grasa corporal debe realizarse de acuerdo con la madurez sexual de los chicos y chicas. Este estudio demuestra la necesidad de realizar estudios en poblaciones mixtas más amplias para determinar los parámetros antropológicos y examinar la capacidad predictiva de los métodos y los puntos de corte obtenidos aquí en el desarrollo de la obesidad. Abstract in english Background and aims: Childhood obesity is increasing dramatically in last decades. To evaluate the usefulness of body mass index (BMI), skinfold thickness (ST), waist circumference (WC), and foot-to-foot bioelectrical impedance (BIA-FF) for screening for obesity in mixed-race popu lation, using the [...] tetrapolar bioelectrical impedance (BIA-T) technique as reference method. Methods and results: A cross-sectional-based population study was performed in the city of Ouro Preto, Brazil, in 2006. Schoolchildren aged 6-15 years (n = 788) was randomly selected according to age and sex stratified by the proportion of students in each schools of the city. Nonparametric receiver operating characteristic (ROC) analysis was used to define the sensitivity and specificity for each method studied using the tetrapolar method as reference. The BMI and the BIA-FF were the most suitable for adiposity screening in pre-pubertal and pubertal stages because they present a better balance between sensitivity and specificity, and smaller misclassification. For post-pubertal boys, the BF-ST-D was the best body fat assessment method. Conclusion: The results suggest that BIA-FF and BMI are choice methods for obesity screening in mixed population and that the method choice for body fat screening must be done according to sexual maturity of boys and girls. The present study demonstrates the need to perform studies in wider mixed-race population to determine anthropometric parameters and to examine the predictive ability of methods and cut-offs here elucidated in the development of obesity.

Cándido, A. P. C.; Alosta, J. P. S.; Oliveira, C. T.; Freitas, R. N.; Freitas, S. N.; Machado-Coelho, G. L. L..

294

Quantitative detection for plant virus's RNA-loading by dot-blot  

International Nuclear Information System (INIS)

A new method, RNA dot blot combined with direct determination of the radioactivity by BIO-Imaging Analyzer (dRH-dBIA) was used for detecting RNA of plant virus in infected plant tissue. This method was used for the influence of RNA-loading level of tobacco mosaic virus (TMV) in tobacco leave tissues after treatment of a plant hormone relatives (n-Propyl dihydro-jasmonate, PDJ) in the concentration range of 0.001-10 ppm. The results indicate that after PDJ application onto tobacco leaves for 3 days all PDJ treatments cause increase of TMV RNA-loading level except 0.001 ppm treatment, and the higher the concentration, the more obvious increase was observed. This phenomenon was confirmed with semi-leaf lesion spot on Nicotiana glutinosa as a local lesion host. The dRH-dBIA method is applicable in quantitative determination of RNA without obvious artificial influence

2003-02-01

295

Food Prices and Body Fatness among Youths  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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...

Grossman, Michael; Tekin, Erdal; Wada, Roy

2013-01-01

296

Ethnic Differences in Body Composition and Obesity Related Risk Factors: Study in Chinese and White Males Living in China  

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The purpose of this cross-sectional observational study was to identify ethnic differences in body composition and obesity-related risk factors between Chinese and white males living in China. 115 Chinese and 114 white male pilots aged 28–63 years were recruited. Fasting body weight, height and blood pressure were measured following standard procedures. Whole-body and segmental body composition were measured using an 8-contact electrode bioimpedance analysis (BIA) system. Fasting serum gluc...

Wang, Dong; Li, Yanping; Lee, Simin Gharib; Wang, Lei; Fan, Jinhui; Zhang, Gong; Wu, Jiang; Ji, Yong; Li, Songlin

2011-01-01

297

Ethnic Differences in Body Composition and Obesity Related Risk Factors: Study in Chinese and White Males Living in China  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The purpose of this cross-sectional observational study was to identify ethnic differences in body composition and obesity-related risk factors between Chinese and white males living in China. 115 Chinese and 114 white male pilots aged 28-63 years were recruited. Fasting body weight, height and blood pressure were measured following standard procedures. Whole-body and segmental body composition were measured using an 8-contact electrode bioimpedance analysis (BIA) system. Fasting serum glucos...

Fan, Jinhui; Zhang, Gong; Wu, Jiang; Ji, Yong; Li, Songlin; Li, Yunping; Wang, Doug; Lee, Simin Gharib; Wang, Lei

2011-01-01

298

Combined synchrotron X-rays and image correlation analyses of biaxially deformed W/Cu nanocomposite thin films on Kapton  

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Abstract In-situ biaxial tensile tests within the elastic domain were conducted with W/Cu nanocomposite thin films deposited on a polyimide cruciform substrate thanks to a biaxial testing machine developed on the DiffAbs beamline at SOLEIL synchrotron. The mechanical behavior of the nanocomposite was characterized at the micro-scale and the macro-scale using simultaneously synchrotron X-ray diffraction and digital image correlation techniques. Strain analyses for equi-biaxial and non equi-bia...

Djaziri, Soundes; Renault, Pierre-olivier; Hild, Franc?ois; Le Bourhis, Eric; Goudeau, Philippe; Thiaudie?re, Dominique; Faurie, Damien

2011-01-01

299

PRO-HEALTH BEHAVIOURS AND BELIEF IN ONESELF AMONG 13-15-YEAR OLD TEENAGERS LIVING IN BIALA PODLASKA  

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The aim of the research was to get information about pro-health behaviours and belief in oneself among 13-15-year old teenagers living in Bia?a Podlaska. The research included 229 pupils from three Grammar Schools (115 girls and 114 boys). The range of respondents’ age varied from 13 to 15 years old. The research tool was two anonymous questionnaires. The first questionnaire contained questions concerning teenagers’ belief in themselves and the efficacy of their activities (10 statements...

Rafal Grad

2013-01-01

300

Przebieg wzrastania dzieci dotkni?tych chorob? nowotworow?  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Wprowadzenie: Na przestrzeni ostatnich 20 lat dokona? si? ogromny post?p w leczeniu chorób nowotworowych u dzieci. U cz??ci z nich pojawi? si? pó?ne nast?pstwa spowodowane przebyt? terapi? onkologiczn?. Cel pracy: Ocena przebiegu wzrastania u dzieci poddanych chemio - i radioterapii z powodu dwóch chorób nowotworowych: ostrej bia?aczki limfoblastycznej (ALL) i guza Wilmsa (nepftroWasfoma). Cel pracy realizowano w oparciu o analiz? przebiegu wzrastania i rozwoju dziecka od mo...

2002-01-01

 
 
 
 
301

The ratio bias phenomenon: fact or artifact?  

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The ratio bias—according to which individuals prefer to bet on probabilities expressed as a ratio of large numbers to normatively equivalent or superior probabilities expressed as a ratio of small numbers—has recently gained momentum, with researchers especially in health economics emphasizing the policy importance of the phenomenon. Although the bias has been replicated several times, some doubts remain about its economic significance. Our two experiments show that the bia...

Lefebvre, Mathieu; Vieder, Ferdinand; Villeval, Marie-claire

2011-01-01

302

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

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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...

Grossman, Michael; Tekin, Erdal; Wada, Roy

2012-01-01

303

The nested structure of a scavenger community  

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Scavenging is a widespread phenomenon in vertebrate communities which has rarely been accounted for, in spite of playing an essential role in food webs by enhancing nutrient recycling and community stability. Most studies on scavenger assemblages have often presented an oversimplified view of carrion foraging. Here, we applied for the first time the concept of nestedness to the study of a species-rich scavenger community in a forest ecosystem (Bia?owiez?a Primeval Forest, Po...

Selva, Nuria; Fortuna, Miguel A.

2007-01-01

304

Métodos indiretos para mensuração da gordura corporal em adolescentes escolares  

Directory of Open Access Journals (Sweden)

Full Text Available Objetivo: Comparar dois diferentes métodos indiretos de estimativa do percentual de gordura corporal em adolescentes escolares. Métodos: Estudo analítico, de caráter transversal, realizado com 300 escolares entre 12 e 17 anos na cidade de Petrolina, Pernambuco, Brasil.Todos foram submetidos à avaliação antropométrica, tendo os percentuais de gordura corporal estimados por dobras cutâneas e bioimpedância elétrica (BIA bipolar. Os testes seguiram os procedimentos recomendados e os avaliados estavam vestidos segundo recomendações. Os distintos percentuais de gordura corporal foram comparados através do teste não paramétrico de Wilcoxon e correlacionados pelo coeficiente de correlação linear de Spearman, com nível de significância de p?0,05. Resultados: A mediana (intervalo interquartil de idade dos avaliados foi de 13,0 (13,0-15,0 anos, sendo 214 (71,3% meninas. Os métodos comparados apresentaram forte correlação linear positiva (r=0,76; p<0,001. Porém, os 26,9% (26,5-28,2 de gordura obtidos por dobras cutâneas são estatisticamente diferentes (p<0,001 dos 22,3% (21,6-23,1 verificados por BIA. Em ambos os gêneros e em todas as idades, o percentual de gordura estimado por dobra cutânea foi maior que o estimado por BIA, entretanto, os métodos apresentam boa correlação (p<0,0001. Conclusão: Os percentuais de gorduracorporal mensurados pelo método antropométrico (dobras cutâneas e pela bioimpedância bipolar apresentam uma correlação forte e significativa em adolescentes escolares. Nesse âmbito, BIA configura-se como opção interessante para monitorizar e avaliar as alterações no estado nutricional desta população

Priscilla Alencar de Oliveira Morais

2013-09-01

305

Obesity in young-adult Nigerians: variations in prevalence determined by anthropometry and bioelectrical impedance analysis, and the development of % body fat prediction equations  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Overweight/obesity is a growing global public health concern. The variations in the prevalence of overweight/obesity, defined by Body Mass Index (BMI, Waist Circumference (WC, Waist-to-Height Ratio (WHtR, Waist-to-Hip Ratio (WHpR and Bioelectrical Impedance Analysis (BIA, were studied and a prediction equation for % body fat (%BF developed. Methods A total of 1584 subjects (56.4% males were recruited for the study. Data on age, gender, height, weight, hip circumference and WC were collected from the subjects using standard protocols. BMI, WHtR and WHpR were derived using standard equations. %BF was measured using a BIA device (Omron BF-400. Appropriate statistical tools were used for the data analysis. Results The prevalence of overweight/obesity in the population was 28.4% (36.3% for males; 22.6% for females (BIA; 20.7% (17.5% for males; 24.8% for females (BMI; 7.5% (1.3% for males; 16.1% for females (WC; 2.9% (4.3% for males; 1.2% for females (WHpR; and 15.4% (14.8% for males; 16.2% females (WHtR. Taking BIA as the reference point, WC misclassified overweight/obesity the most for males (35%, while for the females, WHpR misclassified both disorders the most (21.4%. Correlation studies showed that only BMI correlated significantly, albeit weakly, with %BF among the males, whereas all the anthropometric measures, but WHpR correlated significantly with % body fat in females. Two prediction equations for %BF were generated, and %BF predicted with the two equations correlated significantly (P? Conclusion The prevalence of overweight/obesity in this population vary widely depending on the definition used. The developed prediction equations could be useful in resource-poor settings, but require validation.

Ejike Chukwunonso ECC

2012-07-01

306

Estimation of thigh muscle cross-sectional area by single- and multifrequency segmental bioelectrical impedance analysis in the elderly.  

Science.gov (United States)

Bioelectrical impedance analysis (BIA) has been used to estimate skeletal muscle mass, but its application in the elderly is not optimal. The accuracy of BIA may be influenced by the expansion of extracellular water (ECW) relative to muscle mass with aging. Multifrequency BIA (MFBIA) can evaluate the distribution between ECW and intracellular water (ICW), and thus may be superior to single-frequency BIA (SFBIA) to estimate muscle mass in the elderly. A total of 58 elderly participants aged 65-85 years were recruited. Muscle cross-sectional area (CSA) was obtained from computed tomography scans at the mid-thigh. Segmental SFBIA and MFBIA were measured for the upper legs. An index of the ratio of ECW and ICW was calculated using MFBIA. The correlation between muscle CSA and SFBIA was moderate (r = 0.68), but strong between muscle CSA and MFBIA (r = 0.85). ECW/ICW index was significantly and positively correlated with age (P < 0.001). SFBIA tends to significantly overestimate muscle CSA in subjects who had relative expansion of ECW in the thigh segment (P < 0.001). This trend was not observed for MFBIA (P = 0.42). Relative expansion of ECW was observed in older participants. The relative expansion of ECW affects the validity of traditional SFBIA, which is lowered when estimating muscle CSA in the elderly. By contrast, MFBIA was not affected by water distribution in thigh segments, thus rendering the validity of MFBIA for estimating thigh muscle CSA higher than SFBIA in the elderly. PMID:24114698

Yamada, Yosuke; Ikenaga, Masahiro; Takeda, Noriko; Morimura, Kazuhiro; Miyoshi, Nobuyuki; Kiyonaga, Akira; Kimura, Misaka; Higaki, Yasuki; Tanaka, Hiroaki

2014-01-15

307

Criteria equivalent to the Riemann Hypothesis  

CERN Document Server

We give a brief overview of a few criteria equivalent to the Riemann Hypothesis. Next we concentrate on the Riesz and B{\\'a}ez-Duarte criteria. We proof that they are equivalent and we provide some computer data to support them. It is not compressed to six pages version of the talk delivered by M.W. during the XXVII Workshop on Geometrical Methods in Physics, 28 June -- 6 July, 2008, Bia{\\l}owie{\\.z}a, Poland.

Cislo, J

2008-01-01

308

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)

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.

Borges Naida C

2012-07-01

309

Collision probabilities for AFLP bands, with an application to simple measures of genetic similarity  

Digital Repository Infrastructure Vision for European Research (DRIVER)

AFLP is a frequently used DNA fingerprinting technique that is popular in the plant sciences. A problem encountered in the interpretation and comparison of individual plant profiles, consisting of band presence-absence patterns, is that multiple DNA fragments of the same length can be generated that eventually show up as single bands on a gel. The phenomenon of two or more fragments coinciding in a band within an individual profile is a type of homoplasy, that we call collision. Homoplasy bia...

Gort, G.; Koopman, W. J. M.; Stein, A.; Eeuwijk, F. A.

2008-01-01

310

Interactions of SARS Coronavirus Nucleocapsid Protein with the host cell proteasome subunit p42  

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Abstract Background Severe acute respiratory syndrome-associated coronavirus (SARS-CoV) spreads rapidly and has a high case-mortality rate. The nucleocapsid protein (NP) of SARS-CoV may be critical for pathogenicity. This study sought to discover the host proteins that interact with SARS-CoV NP. Results Using surface plasmon resonance biomolecular interaction analysis (SPR/BIA) and matrix-assisted laser desorption/ionization time of flight (MALDI-TOF) mass spect...

2010-01-01

311

Coeliac disease: a potentially treatable health problem of Saharawi refugee children.  

Digital Repository Infrastructure Vision for European Research (DRIVER)

OBJECTIVE: To characterize the clinical and nutritional impact of coeliac disease (gluten-sensitive enteropathy) among Saharawi children living as refugees in Algeria. METHODS: A total of 65 Saharawi children with coeliac disease were compared with 71 age-matched non-coeliac controls. For each participant, the clinical history was taken and a clinical examination, non-quantitative 24-hour dietary recall, anthropometric and skinfold measurements, bioelectric impedance analysis (BIA) of body co...

Ra?tsch, I. M.; Catassi, C.

2001-01-01

312

Blue ice areas formed by an interplay between ice velocity and SMB  

Science.gov (United States)

Blue ice areas (BIAs) cover around 1% of the East Antarctic ice sheet and are visual evidence of long-term ablation. However, the physical processes that drive the presence of these BIAs are poorly understood. Here, we combine high-resolution (5.5 km) maps of surface mass balance (SMB) and firn layer characteristics of East Antarctica, produced with the regional atmospheric climate model RACMO2, and knowledge of ice velocities, to describe the interplay between ice dynamics and SMB on the formation of blue ice. We show that blue ice typically forms in areas with small ablation such as in coastal Dronning Maud Land. In these regions, more snow is sublimated and/or eroded than is accumulated. Due to the locally low ice velocities (SMB. This erosion is a very slow process: typically, it takes ~10000 years before the ice is exposed at the surface. An exception is found on multiple glaciers in Transantarctic Mountains, such as Byrd Glacier. Here, ice velocities are high (~1 km/year), but due to extremely high wind speeds that occur in the narrow glacial valley, strong drifting snow sublimation and erosion quickly erode the firn layer. With a firn layer model the erosion of an existing firn layer upstream of a BIA, and the subsequent downstream build-up of the firn layer downstream of the BIA, is simulated to assess the sensitivity of these BIAs for positive feedback mechanisms. BIAs have a lower albedo, leading to higher near-surface temperatures and corresponding higher sublimation amounts. Also, a BIA surface is smoother, making it less prone for precipitating snow to stick to the surface. These mechanisms make a BIA to some extent self-sustaining.

Ligtenberg, Stefan; Lenaerts, Jan; van den Broeke, Michiel; Scambos, Ted

2013-04-01

313

Different Techniques For Body Composition Assessment  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The inter-relationships and alter nativity of body composition variables derived from simple anthropometry [BMI and Skin Folds (SFs) prediction equations] and Bioelectrical Impedance Analysis (BIA) with dual energy x-ray (DXA) of healthy sixty nine children (37 boys and 32 girls) aged 9.24±1.73 years old were evaluated. The children recruited from public schools in Giza governorate. All of them had BMI ranged between 15th and 85th percentile and were assessed for body composition [perc...

Hassan, Nayera E.; El-masry, Sahar A.; Soliman, Nadia L.; El-batran, Mona M.

2008-01-01

314

Analyzing the Impact of Prevalence on the Evaluation of a Manual Annotation Campaign  

Digital Repository Infrastructure Vision for European Research (DRIVER)

This article details work aiming at evaluating the quality of the manual annotation of gene renaming couples in scientific abstracts, which generates sparse annotations. To evaluate these annotations, we compare the results obtained using the commonly advocated inter-annotator agreement coefficients such as S, ? and ?, the less known R, the weighted coefficients ?? and ? as well as the F-measure and the SER. We analyze to which extent they are relevant for our data. We then study the bia...

Fort, Kare?n; Franc?ois, Claire; Galibert, Olivier; Ghribi, Maha

2012-01-01

315

Comparison of different body composition models in acromegaly.  

Science.gov (United States)

The aberrant body composition of 10 patients with active acromegaly was used to evaluate the validity and limitations of several models and methods to assess body composition. Body composition was determined using either a two-compartment model, dividing the body in a body fat (BF) compartment and a fat-free mass (FFM) compartment, or a four-compartment model in which the FFM compartment comprises the three following components: body cell mass, extracellular water and the fat-free extracellular solids. The measurement techniques consisted of anthropometry, bioelectrical impedance analysis (BIA)-applying various established regression equations-tritiated water dilution, whole body 40K-counting, and whole body computed tomography (CT). This latter method was used as the reference technique. Assessment of total body water using BIA - applying the RJL or Kushner equation-correlated significantly with the assessment using tritiated water dilution (P BIA-applying the RJL or Lukaski equation-as well as body fat assessment using the four-compartment model based on tritiated water dilution and whole body 40K-counting were significantly correlated with body fat assessment using CT (P BIA using other regression equations overestimated body fat by 7.2-13.7 kg. Whole body 40K-counting was significantly correlated with CT-determined muscle plus skin volume (P CT-calibrated anthropometric predictions significantly overestimated body fat. It is concluded that in patients with active acromegaly, the determination of body composition using either certain two-compartment models based on measurement of total body water or bioelectrical impedance, or a four-compartment model based on total body water and total body potassium measurements show good agreement with CT-determined body composition. PMID:8971547

Brummer, R J; Lönn, L; Bengtsson, B A; Kvist, H; Bosaeus, I; Sjöström, L

1996-12-01

316

Production of benzylisoquinoline alkaloids in Saccharomyces cerevisiae  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The benzylisoquinoline alkaloids (BIAs) are a diverse class of metabolites that exhibit a broad range of pharmacological activities and are synthesized through plant biosynthetic pathways comprised of complex enzyme activities and regulatory strategies. We have engineered yeast to produce the key intermediate reticuline and downstream BIA metabolites from a commercially available substrate. An enzyme tuning strategy was implemented that identified activity differences between variants from di...

2008-01-01

317

Nanoscale Affinity Chip Interface for Coupling Inhibition SPR Immunosensor Screening with Nano-LC TOF MS  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The on-line nanoscale coupling of a surface plasmon resonance (SPR)-based inhibition biosensor immunoassay (iBIA) for the screening of low molecular weight molecules with nano-liquid-chromatography electrospray ionization time-of-flight mass spectrometry (nano-LC ESI TOF MS) for identification is described. The interface is based on a reusable recovery chip (RC) that contains a nanoscale biosorbent composed of a hydrogel layer modified with antibodies raised against the analyte featuring the ...

Marchesini, G. R.; Buijs, J.; Haasnoot, W.; Hooijerink, H.; Jansson, O.; Nielen, M. W. F.

2008-01-01

318

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

Digital Repository Infrastructure Vision for European Research (DRIVER)

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...

Minderico, Cla?udia Sofia Ferreira Correia

2007-01-01

319

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

Digital Repository Infrastructure Vision for European Research (DRIVER)

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 (...

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

2001-01-01

320

Ensemble projections of future streamflow droughts in Europe  

Digital Repository Infrastructure Vision for European Research (DRIVER)

There is growing concern in Europe about the possible rise in the severity and frequency of extreme drought events as a manifestation of global change. In order to plan suitable adaptation strategies it is important for decision makers to know how drought conditions will develop at regional scales. This paper therefore addresses the issue of future developments in streamflow drought characteristics across Europe. Through off-line coupling of a hydrological model with an ensemble of bia...

Forzieri, G.; Feyen, L.; Rojas, R.; Flo?rke, M.; Wimmer, F.; Bianchi, A.

2013-01-01

 
 
 
 
321

Is bioelectrical impedance accurate for use in large epidemiological studies?  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Percentage of body fat is strongly associated with the risk of several chronic diseases but its accurate measurement is difficult. Bioelectrical impedance analysis (BIA) is a relatively simple, quick and non-invasive technique, to measure body composition. It measures body fat accurately in controlled clinical conditions but its performance in the field is inconsistent. In large epidemiologic studies simpler surrogate techniques such as body mass index (BMI), waist circumfe...

2008-01-01

322

Business and IT alignment in context  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Already for more than two decades, the necessity and desirability of aligning business needs and information technology (IT) capabilities is considered to be one of the key issues in IT management. However, several studies report quite low scores on business and IT alignment (BIA). The question “Why haven’t we mastered alignment?” remains valid today, both from an academic and from a practical perspective. Based upon our analysis of the reasons why alignment continues to be a challenge ...

Silvius, A. J. G.

2013-01-01

323

Specific and Rapid Enumeration of Viable but Nonculturable and Viable-Culturable Gram-Negative Bacteria by Using Flow Cytometry ? †  

Digital Repository Infrastructure Vision for European Research (DRIVER)

An issue of critical concern in microbiology is the ability to detect viable but nonculturable (VBNC) and viable-culturable (VC) cells by methods other than existing approaches. Culture methods are selective and underestimate the real population, and other options (direct viable count and the double-staining method using epifluorescence microscopy and inhibitory substance-influenced molecular methods) are also biased and time-consuming. A rapid approach that reduces selectivity, decreases bia...

Khan, Mohiuddin M. Taimur; Pyle, Barry H.; Camper, Anne K.

2010-01-01

324

Obesity in young-adult Nigerians: variations in prevalence determined by anthropometry and bioelectrical impedance analysis, and the development of % body fat prediction equations  

Digital Repository Infrastructure Vision for European Research (DRIVER)

Abstract Background Overweight/obesity is a growing global public health concern. The variations in the prevalence of overweight/obesity, defined by Body Mass Index (BMI), Waist Circumference (WC), Waist-to-Height Ratio (WHtR), Waist-to-Hip Ratio (WHpR) and Bioelectrical Impedance Analysis (BIA), were studied and a prediction equation for % body fat (%BF) developed. Methods A total of 1584 subjects (56.4% males) were recruited for the study. Data on age, gender,...

Ecc, Ejike Chukwunonso; Ijeh Ifeoma I

2012-01-01

325

A comparison of bias approximations for the 2SLS estimator  

Digital Repository Infrastructure Vision for European Research (DRIVER)

We consider the bias of the 2SLS estimator in the linear instrumental vari-ables regression with one endogenous regressor only. By using asymptotic expansion techniques we approximate 2SLS coefficient estimation bias under various scenarios regarding the number and strength of instruments.The resulting approximation encompasses existing bias approximations, which are valid in particular cases only. Simulations show that the developed approximation gives an accurate description of the 2SLS bia...

Bun, Maurice J. G.; Windmeijer, Frank

2010-01-01

326

Swedish Business and the Political Radicalism of the 1960s : the Case of Advertising  

Digital Repository Infrastructure Vision for European Research (DRIVER)

The polical radicalism of the 1960s confronted the  consesus politics of the corportist political economies of the West. The  new social movements (NSM) that arose at this time have been studied, but the reactions of the established interest groups to their emergence is largely unknown. This study highlights how a number of Swedish business interest associations (BIA) repsonded to these groups, specifically to their critcism of advertising. The actions of the NSMs and the BIAs are contextua...

Funke, Michael

2011-01-01

327

Solution of electric power system problems using nonlinear programming methods; Resolucao de problemas de sistemas eletricos de potencia usando metodos de programacao nao linear  

Energy Technology Data Exchange (ETDEWEB)

In this literature, three nonlinear optimization methodologies are studied: the Lagrangian Function Method, the Penalty Function Method. Through the studies of the Langrangian Function and the Penalty Function Method, it was possible to reach the formulation of the Augmented Lagrangian Function aiming to solve nonlinear nonconvex programming problems. Numerical tests are presented for the nonconvex programming problem known as optimal power flow. (author) 6 refs., 3 figs., 3 tabs.; e-mail: bia at sel.eesc.sc.usp.br

Nascimentos, Clebea Araujo; Costa, Geraldo R.M. da [Sao Paulo Univ., Sao Carlos, SP (Brazil). Dept. de Engenharia Eletrica

1997-12-31

328

GETDB: 113286  

Full Text Available 113286 Link to Original w[*]; P{GawB}NP3454 / CyO, P{UAS-lacZ.UW14}UW14 42B2 Link to DGRC Genome bia/femur ring, AII ring in antenna, ubiquitous in new flies - - comment1:C, comment2:42B13-B16 d1 d2 d3 ring, AII ring in antenna, Adult GFP ubiquitous in new flies Lethality - Also known as - Original Comment

329

Bias Adaptation for Vocal Tract Length Normalization  

Digital Repository Infrastructure Vision for European Research (DRIVER)

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...

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

2013-01-01

330

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

1999-01-01

331

One-year outcomes and mediators of a brief intervention for drug abusing adolescents.  

Science.gov (United States)

Two manually guided brief interventions were evaluated with a randomized, controlled trial. Adolescents (aged 13-17 years) suspected of abusing alcohol and other drugs and their parent were randomly assigned to receive either a 2-session adolescent only (BI-A), 2-session adolescent and additional parent session (BI-AP), or assessment only control condition (CON). Adolescents were identified in a school setting, and the intervention was delivered by trained counselors. Outcome analyses (N = 284; 90% of those enrolled) of relative change (from intake to 12 months) and absolute status (at 12 months) revealed a general pattern of reductions in drug use behaviors, particularly with the cannabis outcome measures, in both active conditions (BI-A and BI-AP). Students in the control condition showed worse outcome compared with the BI-A and BI-AP groups. Among the 4 mediating variables measured at 6 months, use of additional services, motivation to change, and parenting practices had significant influences on 12-month outcome; problem-solving skills approached significance as a mediator. The potential value of a brief intervention for drug abusing adolescents is discussed. (PsycINFO Database Record (c) 2014 APA, all rights reserved). PMID:24955669

Winters, Ken C; Lee, Susanne; Botzet, Andria; Fahnhorst, Tamara; Nicholson, Ali

2014-06-01

332

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)

Full Text Available SciELO Public Health | Language: Spanish Abstract in spanish 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.

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

333

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)

Full Text Available SciELO Spain | Language: Spanish Abstract in spanish 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.

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

334

Skinfold thickness versus bioelectrical impedance for the evaluation of body composition in athletes: a critical review  

Directory of Open Access Journals (Sweden)

Full Text Available Body composition is a determinant factor for performance in different sports modalities. Safe, practical and validated instruments are necessary for the measurement of body composition and for the identification of alterations that occur during the training period. A critical review was performed comparing studies that apply skinfold thickness (SKF and bioelectrical impedance (BIA for the estimation of body composition in athletes. Studies published between 1990 and 2007 available online in the Pubmed, SportDiscus and Scielo databases were reviewed. Seven critical points were evaluated to rate the studies: number of subjects, performance level of the athletes studied, statistical methods applied, number of equations tested, test control, sample control, and gold standard used to compare the data. SKF and BIA present advantages for the assessment of body composition in athletes compared to other methods, such as their easy application, non-invasiveness and relatively low cost. The accuracy and reliability of the results obtained with these methods depend on test conditions, equations selected for data analysis and characteristics of the particular group (sports modality, gender, age and performance level. SKF seems to be a better method to estimate body composition in athletes because of the availability of specific equations for different sports modalities and because of the low sensitivity of BIA in detecting minimal alterations that occur during the training period.

Rafael Deminice

2009-06-01

335

Bulk Inversion Asymmetry effects on the band structure of zincblende heterostructures in an 8-band Effective Mass Approximation model  

CERN Document Server

We have developed an 8-band Effective Mass Approximation model that describes the zero field spin splitting in the band structure of zincblende heterostructures due to bulk inversion asymmetry (BIA). We have verified that our finite difference Hamiltonian transforms in almost all situations according to the true $D_{2d}$ or $C_{2v}$ symmetry of [001] heterostructures. This makes it a computationally efficient tool for the accurate description of the band structure of heterostructures for spintronics. We first compute the band structure for an AlSb/GaSb/AlSb quantum well (QW), which presents only BIA, and delineate its effects. We then use our model to find the band structure of an AlSb/InAs/GaSb/AlSb QW and the relative contribution of structural and bulk inversion asymmetry to the spin splitting. We clarify statements about the importance of these contributions and conclude that, even for our small gap QW, BIA needs to be taken into account for the proper description of the band structure.

Cartoixa, X; McGill, T C

2002-01-01

336

Diagnostic Value of Bioelectrical Impedance Analysis versus Body Mass Index for Detection of Obesity among Students  

Directory of Open Access Journals (Sweden)

Full Text Available Purpose:Obesity is a common nutritional problem in both developed and developing countries. The aim of this study was to determine the prevalence of overweightness and obesity using both bioelectrical impedance analysis (BIA and body mass index (BMI.Methods:In this cross-sectional study, 288 healthy college students were selected. Socio-economic status questionnaires were completed and subjects' anthropometric features were measured by a trained nurse. BMI was calculated and body fat mass (BFM and body fat percent (BF% were obtained using BIA method by hand-to-hand Omron BF-500 set.Results:Mean age of the subjects was 21.1?1.7 years. Based on BMI, 2.6% of males and 2.2% of females were obese while 15.7% and 9.6% were diagnosed to be overweight respectively.The correlation between BMI values and BFM were 0.883 and 0.908 in males and females respectively (p < 0.001. Furthermore, BF% had a significant correlation with BMI in both males and females (p < 0.001.Conclusions:Our survey demonstrated a lower prevalence of obesity and overweightness in college students compared with Iranian general population, especially in females. Additionally, BIA method was shown to be closely correlated with and as much valuable as BMI in regard to detection of obesity.

Najaf Zare

2011-11-01

337

Imide modified epoxy matrix resins  

Science.gov (United States)

High char yield epoxy using novel bisimide amines (BIA's) as curing agents with a state of the art epoxy resin was developed. Stoichiometric quantities of the epoxy resin and the BIA's were studied to determine the cure cycle required for preparation of resin specimens. The bisimide cured epoxies were designated IME's (imide modified epoxy). The physical, thermal and mechanical properties of these novel resins were determined. The levels of moisture absorption exhibited by the bisimide amine cured expoxies (IME's) were considerably lower than the state of the art epoxies. The strain-to-failure of the control resin system was improved 25% by replacement of DDS with 6F-DDS. Each BIA containing resin exhibited twice the char yield of the control resin MY 720/DDS. Graphite fiber reinforced control (C) and IME resins were fabricated and characterized. Two of the composite systems showed superior properties compared to the other Celion 6000/IME composite systems and state of the art graphite epoxy systems. The two systems exhibited excellent wet shear and flexural strengths and moduli at 300 and 350 F.

Scola, D. A.; Pater, R. H.

1981-01-01

338

U.S. grants political asylum to woman who fled female genital mutilation.  

Science.gov (United States)

Fauziya Kasinga fled to the US from Togo in 1994 at the age of 17 years after an aunt forced her to marry a 45-year-old man with three wives. From the time of her arrival to the US in December 1994 to April 24, 1996, Kasinga was detained at two correctional facilities awaiting a decision by the US Board of Immigration Appeals (BIA) on her request for political asylum. That asylum was granted in a 11-1 decision issued on June 13 on the grounds of Kasinga's fear of being forced to undergo female genital mutilation (FGM) if sent back to Togo. This is the first time that the BIA has ruled that FGM can be grounds for asylum. 50% of women in Togo are estimated to have undergone FGM. The BIA decided that the young woman met the criteria for receiving refuge because she is a member of a particular social group, the unmutilated women of the Tchamba-Kunsuntu tribe who face but oppose FGM, which has a well-founded fear of persecution which is country wide. Moreover, Kasinga's husband has influence with the police in Togo, a rather small country. This decision not only sets precedent with regard to FGM, but also is the first gender-based asylum claim to be considered since the Immigration and Naturalization Service revised its guidelines in May 1995 to cover such persecution. PMID:12291526

1996-06-28

339

Antygen p53 w ?uszczycy i innych wybranych chorobach z zaburzonego rogowacenia  

Directory of Open Access Journals (Sweden)

Full Text Available Wprowadzenie: £uszczyca charakteryzuje si? nadmiern? proliferacj? i nieprawid?owym ró?nicowaniem komórek naskórka. Bia?ko p53 jest czynnikiem transkrypcyjnym, który odgrywa istotn? rol? w regulacji cyklu komórkowego. Prawid?owe bia?ko p53 z powodu swojej latencji i krótkiego czasu pó?trwania, jest niewykrywalne w standardowych badaniach immunohistochemicznych, natomiast nadmierna aktywacja i mutacje genu koduj?cego bia?ko p53 oraz procesy inaktywuj?ce jego funkcj? powoduj? gromadzenie si? go w komórkach i nadmiern? ekspresj?, która mo?e byæ uwidoczniona. Cel pracy: Celem pracy by?a ocena ekspresji bia?ka p53 w bioptatach skóry pobranej od chorych na ?uszczyc? zwyk??, liszaj p?aski i ?upie? czerwony mieszkowy. Materia? i metody: Wycinki skórne pobrano od 18 chorych na ?uszczyc? zwyk??, 15 chorych na liszaj p?aski i 7 osób z ?upie?em czerwonym mieszkowym. Dodatkowo od 7 chorych na ?uszczyc? pobrano wycinki ze skóry niezmienionej. Grup? kontroln? stanowi?o 10 osób ogólnie zdrowych, bez osobistego i rodzinnego wywiadu w kierunku dermatoz z zaburzonego rogowacenia. W badaniu immunohistochemicznym z u?yciem monoklonalnego przeciwcia?a DO7 uwidoczniono ekspresj? bia?ka p53 w komórkach. Dla ka?dego preparatu oceniano liczb? i lokalizacj? komórek p53 pozytywnych. Wyniki: W skórze zmienionej ?uszczycowo w porównaniu ze skór? osób zdrowych liczba komórek p53 dodatnich by?a statystycznie istotnie wi?ksza (p<0,01. W grupie osób chorych na ?uszczyc? w skórze pobranej ze zmian chorobowych ekspresja p53 by?a znacz?co statystycznie wi?ksza ni? w skórze niezmienionej pobranej od tych pacjentów (p =0,02. W skórze ze zmian liszaja p?askiego i ?upie?u czerwonego mieszkowego w porównaniu z grup? osób zdrowych liczba komórek p53 dodatnich by?a znacz?co wy?sza (odpowiednio p<0,01 ip=0,02. Porównuj?c obliczenia ?redniej liczby komórek p53 dodatnich oraz ?redniego odsetka tych komórek, stwierdzono dodatni? korelacj? mi?dzy tymi warto?ciami o bardzo wysokiej istotno?ci statystycznej (R=0,95; p<0,0001. W skórze zdrowej osób zdrowych i skórze niezmienionej osób z ?uszczyc? komórki p53 dodatnie by?y zlokalizowane g?ównie w warstwie podstawnej. W skórze zmienionej chorobowo znajdowa?y si? natomiast we wszystkich warstwach naskórka.

Wojciech Baran

2006-03-01

340

What impact do Global Health Initiatives have on human resources for antiretroviral treatment roll-out? A qualitative policy analysis of implementation processes in Zambia  

Directory of Open Access Journals (Sweden)

Full Text Available Abstract Background Since the beginning of the 21st century, development assistance for HIV/AIDS has increasingly been provided through Global Health Initiatives, specifically the United States Presidential Emergency Plan for AIDS Relief, the Global Fund to Fight HIV, TB and Malaria and the World Bank Multi-country AIDS Programme. Zambia, like many of the countries heavily affected by HIV/AIDS in southern Africa, also faces a shortage of human resources for health. The country receives significant amounts of funding from GHIs for the large-scale provision of antiretroviral treatment through the public and private sector. This paper examines the impact of GHIs on human resources for ART roll-out in Zambia, at national level, in one province and two districts. Methods It is a qualitative policy analysis relying on in-depth interviews with more than 90 policy-makers and implementers at all levels. Results Findings show that while GHIs do not provide significant funding for additional human resources, their interventions have significant impact on human resources for health at all levels. While GHIs successfully retrain a large number of health workers, evidence suggests that GHIs actively deplete the pool of skilled human resources for health by recruiting public sector staff to work for GHI-funded nongovernmental implementing agencies. The secondment of GHI staff into public sector facilities may help alleviate immediate staff shortages, but this practice risks undermining sustainability of programmes. GHI-supported programmes and initiatives add significantly to the workload of existing public sector staff at all levels, while incentives including salary top-ups and overtime payments mean that ART programmes are more popular among staff than services for non-focal diseases. Conclusion Research findings suggest that GHIs need to actively mediate against the potentially negative consequences of their funding on human resources for health. Evidence presented highlights the need for new strategies that integrate retraining of existing staff with longer-term staff development to ensure staff retention. The study results show that GHIs must provide significant new and longer-term funding for additional human resources to avoid negative consequences on the overall provision of health care services and to ensure sustainability and quality of programmes they support.

Hanefeld Johanna

2009-02-01

 
 
 
 
341

Global Horizontal Irradiance Anomalies in Long Term Series Over India  

Science.gov (United States)

India has a high potential for solar energy applications due to its geographic position within the Sun Belt and the large number of cloudless days in many regions of the country. However, certain regions of India, particularly those largely populated, can exhibit large aerosol loading in the atmosphere as a consequence of anthropogenic emissions that could have a negative feedback in the solar resource potential. This effect, named as solar dimming, has already been observed in India, and in some other regions in the world, by some authors using ground data from the last two decades. The recent interest in the promotion of solar energy applications in India highlights the need of extending and improving the knowledge of the solar radiation resources in this country, since most of the long term measurements available correspond to global horizontal radiation (GHI) and most of them are also located big cities or highly populated areas. In addition, accurate knowledge on the aerosol column quantification and on its dynamical behavior with high spatial resolution is particularly important in the case of India, due to their impact on direct normal irradiation. Long term studies of solar irradiation over India can be performed using monthly means of GHI measurements from the Indian Meteorological Department. Ground data are available from 1964 till today through the World Radiation Data Centre that publish these values in the web. This work shows a long term analysis of GHI using anomalies techniques over ten different sites over India. Besides, techniques of linear trends have been applied for to show the evolution over this period. The analysis of anomalies has also found two periods of different behavior. From 1964 till 1988 the anomalies observed were positive and the last 20 years seems to be a period of negative anomalies. The results exhibit a decreasing trend and negative anomalies confirming thus the darkening effect already reported by solar dimming studies. This observation is also consequent with solar dimming effect, apparently increased during the last two decades due to the increase of aerosol loading in the atmosphere. These results remark the important of having accurate knowledge of atmospheric aerosol loading and its dynamics over India with high spatial resolution in the framework of solar energy deployment in the country. It is worth to mention that greater anomalies and a noticeable decreasing trend found in Calcutta could be correlated with the highly population rate, and thus the greater the population density of the area the greater the negative anomalies and the decreasing trend of solar irradiation monthly means.

Cony, Marco; Liria, Juan; Weisenberg, Ralf; Serrano, Enrique

2014-05-01

342

AcEST?Adiantum capillus-veneris EST)?DNA????????????: BP916243  

Full Text Available YMU001_000085_A04 YMU01 Adiantum capillus-veneris mRNA. clone: YMU001_000085_A04. BP916243 proth , Positives = 19/31 (61%) Frame = -3 Query: 104 CSECGE LGHY*NRCPHLTNRAATTTEVYQRH 12 CS+C E+GHY ++CPH + T + 4 (50%), Gaps = 1/34 (2%) Frame = -3 Query: 104 CSECGE LGHY*NRCPH-LTNRAATTTEVYQRHLP 6 C+ C + GH CPH + + T es = 16/25 (64%) Frame = -3 Query: 131 W*SITLDV*CSECGE LGHY*NRCPH 57 W +V C +CGE +GH+ N CP+ Sbjct: 314 WRKD LSEVLCFKCGE MGHFANMCPN 338 >sp|Q8DXC2|LACC_STRA5 Tagatose-6-pho

343

AcEST?Adiantum capillus-veneris EST)?DNA????????????: BP914031  

Full Text Available YMU001_000039_B01 YMU01 Adiantum capillus-veneris mRNA. clone: YMU001_000039_B01. BP914031 proth , Positives = 16/24 (66%) Frame = -1 Query: 105 CSECGE LGHY*NRCPHLTNRAATT 34 CS+C E+GHY ++CPH + T Sbjct: 1 es = 16/25 (64%) Frame = -1 Query: 132 W*SITLDV*CSECGE LGHY*NRCPH 58 W +V C +CGE +GH+ N CP+ Sbjct: 314 WRKD LSEVLCFKCGE MGHFANMCPN 338 >sp|Q8DXC2|LACC_STRA5 Tagatose-6-pho , Positives = 14/24 (58%) Frame = -1 Query: 105 CSECGE LGHY*NRCPHLTNRAATT 34 C CGE GH+ N+CPHL T Sbjct: 226

344

AcEST: BP914031  

Full Text Available YMU001_000039_B01 543 Adiantum capillus-veneris mRNA. clone: YMU001_000039_B01. BP914031 CL4194C , Positives = 16/24 (66%) Frame = -1 Query: 105 CSECGE LGHY*NRCPHLTNRAATT 34 CS+C E+GHY ++CPH + T Sbjct: 1 es = 16/25 (64%) Frame = -1 Query: 132 W*SITLDV*CSECGE LGHY*NRCPH 58 W +V C +CGE +GH+ N CP+ Sbjct: 314 WRKD LSEVLCFKCGE MGHFANMCPN 338 >sp|Q8DXC2|LACC_STRA5 Tagatose-6-pho , Positives = 14/24 (58%) Frame = -1 Query: 105 CSECGE LGHY*NRCPHLTNRAATT 34 C CGE GH+ N+CPHL T Sbjct: 226

345

AcEST: BP916243  

Full Text Available YMU001_000085_A04 484 Adiantum capillus-veneris mRNA. clone: YMU001_000085_A04. BP916243 CL4194C , Positives = 19/31 (61%) Frame = -3 Query: 104 CSECGE LGHY*NRCPHLTNRAATTTEVYQRH 12 CS+C E+GHY ++CPH + T + 4 (50%), Gaps = 1/34 (2%) Frame = -3 Query: 104 CSECGE LGHY*NRCPH-LTNRAATTTEVYQRHLP 6 C+ C + GH CPH + + T es = 16/25 (64%) Frame = -3 Query: 131 W*SITLDV*CSECGE LGHY*NRCPH 57 W +V C +CGE +GH+ N CP+ Sbjct: 314 WRKD LSEVLCFKCGE MGHFANMCPN 338 >sp|Q8DXC2|LACC_STRA5 Tagatose-6-pho

346

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).

2010-01-01

347

Formation of polycyclic aromatic hydrocarbons in northern and middle taiga soils  

Science.gov (United States)

An integrated study of the qualitative and quantitative composition of polycyclic aromatic hydrocarbons (PAHs) in the atmospheric precipitation-soil-lysimetric water system was performed using high performance liquid chromatography. It was shown that the accumulation of low-molecular PAHs (phenanthrene, anthracene, fluoranthene, pyrene, benz[a]anthracene, and chrysene) in soils is due to the transformation of organic matter and the regional transport and deposition of PAHs with atmospheric precipitation on the underlying surface. High-molecular polyarenes (benz[b]fluoranthene, benz[k]fluoranthene, benz[a]pyrene, dibenz[a,h]anthracene, benzo[ghi]perylene, and indeno[1,2,3-cd]pyrene) mainly result from the decomposition of soil organic matter.

Gabov, D. N.; Beznosikov, V. A.; Kondratenok, B. M.; Yakovleva, E. V.

2008-11-01

348

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)

1990-01-01

349

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

1990-06-06

350

Development of a room-temperature phosphorescence fiber-optic sensor  

Energy Technology Data Exchange (ETDEWEB)

The design of a new fiber optic sensor based on solid-surface room temperature phosphorimetry is presented for the analyses of polycyclic aromatic hydrocarbons in water samples. Analytical figures of merit are given for several compounds of environmental importance. Limits of detection at the nanograms per milliliter level were estimated for pyrene, benzo[e]pyrene, benzo[ghi]perylene, 1,2:3,4-dibenzanthracene, coronene, and 2,3-benzofluorene. The linearity of response of the phosphorescence sensor was evaluated, showing a fairly linear behavior for quantitative analysis. Finally, the feasibility of monitoring polycyclic aromatic hydrocarbons in aqueous media was illustrated by identifying pyrene in a contaminated ground water sample. 33 refs., 5 figs., 3 tabs.

Campiglia, A.D.; Alarie, J.P.; Vo-Dinh, T. [Oak Ridge National Lab., TN (United States)

1996-05-01

351

Hydrogen and fuel cell activity report - France 2010; Rapport d'activites Hydrogene et Piles a combustible - France 2010  

Energy Technology Data Exchange (ETDEWEB)

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 CO{sub 2} sailing boat, and the Myrte project), educational applications, activity in small and medium-sized enterprises (CETH, SAGIM, HYCAN, McPhy, N-GHY).

NONE

2010-07-01

352

Hydrogen transfer reaction in polycyclic aromatic hydrocarbon radicals.  

Science.gov (United States)

Density functional theory calculations have been successfully applied to investigate the formation of hydrocarbon radicals and hydrogen transfer pathways related to the chemical vapor infiltration process based on model molecules of phenanthrene, anthra[2,1,9,8-opqra]tetracene, dibenzo[a,ghi]perylene, benzo[uv]naphtho[2,1,8,7-defg]pentaphene, and dibenzo[bc,ef]ovalene. The hydrogen transfer reaction rate constants are calculated within the framework of the Rice-Ramsperger-Kassel-Marcus theory and the transition state theory by use of the density functional theory calculation results as input. From these calculations, it is concluded that the hydrogen transfer reaction between two bay sites can happen almost spontaneously with energy barrier as low as about 4.0 kcal mol(-1), and the hydrogen transfer reactions between two armchair sites possess lower energy barrier than those between two zigzag sites. PMID:24893119

Liu, Huiting; Yan, Liuming; Yue, Baohua; Li, Aijun

2014-06-26

353

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

Science.gov (United States)

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 (< or = 7.7%) were satisfactory. The levels of 10 PAHs were analyzed in 6 classes of tissues (heart, liver, intestine, muscle, lung, and kidney) of 10 buzzards and 2 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

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

2002-01-01

354

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

Energy Technology Data Exchange (ETDEWEB)

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.)

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

355

Determination of polynuclear aromatic hydrocarbons in marine samples of Siokolo Fishing Settlement.  

Science.gov (United States)

Analysis for the presence of 16 priority polynuclear aromatic hydrocarbons (PAHs) was carried out in fish, sediment and water samples of a fishing settlement in the Niger Delta region of Nigeria which is supposed to be extensively polluted by seepages from oil discharge terminals. The determination and quantification of PAHs in water, fish and sediment samples were done by GC-MS with the aid of isotopically labeled internal standards. The 16 priority PAHs, namely naphthalene, acenaphthylene, acenaphthene, flourene, phenanthrene, anthracene, flouranthene, pyrene, benz[a]anthracene, chrysene, benzo[b]flouranthene, benzo[k]flouranthene, benzo[a]pyrene, benzo[ghi]perylene, dibenz[a,h]anthracene and indeno[1,2,3-cd]pyrene, were found to be present in significant amount in all three samples. PMID:15909537

Anyakora, Chimezie; Ogbeche, Anthony; Palmer, Pete; Coker, Herbert

2005-05-01

356

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

Directory of Open Access Journals (Sweden)

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.

Harvinder Kaur

2014-04-01

357

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). 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)

2002-01-01

358

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

Science.gov (United States)

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.

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

2009-05-01

359

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

Directory of Open Access Journals (Sweden)

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.

R. J. Sheesley

2009-05-01

360

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

Scientific Electronic Library Online (English)

Full Text Available SciELO Argentina | Language: Spanish Abstract in spanish 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.

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

 
 
 
 
361

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

Directory of Open Access Journals (Sweden)

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.

M. Marquardt

2010-09-01

362

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

Directory of Open Access Journals (Sweden)

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.

M. Marquardt

2010-02-01

363

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

Scientific Electronic Library Online (English)

Full Text Available SciELO Brazil | Language: English Abstract in portuguese 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.

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

364

Determination of the proton environment of high stability Menasemiquinone intermediate in Escherichia coli nitrate reductase A by pulsed EPR.  

Science.gov (United States)

Escherichia coli nitrate reductase A (NarGHI) is a membrane-bound enzyme that couples quinol oxidation at a periplasmically oriented Q-site (Q(D)) to proton release into the periplasm during anaerobic respiration. To elucidate the molecular mechanism underlying such a coupling, endogenous menasemiquinone-8 intermediates stabilized at the Q(D) site (MSQ(D)) of NarGHI have been studied by high-resolution pulsed EPR methods in combination with (1)H2O/2H2O exchange experiments. One of the two non-exchangeable proton hyperfine couplings resolved in hyperfine sublevel correlation (HYSCORE) spectra of the radical displays characteristics typical from quinone methyl protons. However, its unusually small isotropic value reflects a singularly low spin density on the quinone carbon ? carrying the methyl group, which is ascribed to a strong asymmetry of the MSQ(D) binding mode and consistent with single-sided hydrogen bonding to the quinone oxygen O1. Furthermore, a single exchangeable proton hyperfine coupling is resolved, both by comparing the HYSCORE spectra of the radical in 1H2O and 2H2O samples and by selective detection of the exchanged deuterons using Q-band 2H Mims electron nuclear double resonance (ENDOR) spectroscopy. Spectral analysis reveals its peculiar characteristics, i.e. a large anisotropic hyperfine coupling together with an almost zero isotropic contribution. It is assigned to a proton involved in a short ?1.6 Å in-plane hydrogen bond between the quinone O1 oxygen and the N? of the His-66 residue, an axial ligand of the distal heme b(D). Structural and mechanistic implications of these results for the electron-coupled proton translocation mechanism at the Q(D) site are discussed, in light of the unusually high thermodynamic stability of MSQ(D). PMID:22190684

Grimaldi, Stéphane; Arias-Cartin, Rodrigo; Lanciano, Pascal; Lyubenova, Sevdalina; Szenes, Rodolphe; Endeward, Burkhard; Prisner, Thomas F; Guigliarelli, Bruno; Magalon, Axel

2012-02-10

365

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)

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.

N. Babio

2009-08-01

366

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  

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Full Text Available SciELO Spain | Language: Spanish Abstract in portuguese 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 o

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.

367

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  

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Full Text Available SciELO Chile | Language: Spanish Abstract in spanish 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.

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

368

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  

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Full Text Available SciELO Spain | Language: English Abstract in spanish 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.

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

369

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

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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.

Bruni Vincenzina

2008-08-01

370

Phase angle is a prognostic factor for survival in amyotrophic lateral sclerosis.  

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Malnutrition is a well-known independent survival factor in ALS patients. Total body impedance analysis (BIA) has been validated for the measurement of fat-free mass. Another physical value obtained by BIA is phase angle (PA) that has been proposed to be an index of malnutrition or a survival prognostic factor in several diseases. We measured PA in a sample of 168 ALS patients and analysed the relationships between PA and neurological, respiratory and nutritional status, and determined whether PA is an independent prognostic factor for survival in ALS. BIA was performed using an Analycor3 instrument with surface electrodes at 50 kHz and 800 microA. PA was obtained using the formula: PA =arctan (Xc/R) (in degrees) where Xc is the body reactance and R the bioelectric resistance. Relationships between quantitative variables were assessed by linear correlation coefficients and through univariate and multivariate linear regression analyses. To assess the prognostic role of PA on survival of patients, we performed survival analyses based on the Kaplan-Meier method using the log rank test, and on univariate and multivariate Cox proportional hazard model. Baseline time was time from multidisciplinary visit (T1) to death or censoring time. PA was always significantly lower in ALS patients than in healthy control subjects published in the literature. PA was lower in our ALS malnourished patients than in non-malnourished patients (3.3+/-1.1 degrees versus 2.5+/-0.6 degrees , p =0.003). In multivariate linear regression analysis, manual muscle testing (pCV and time between initial signs and multidisciplinary visit, clinical form, age and sex. Patients with a PA 2.5 degrees . We concluded that in ALS patients, PA is greatly decreased. It is related to the nutritional status of patients, and is also an independent prognostic factor of survival. PMID:18720089

Desport, Jean-Claude; Marin, Benoït; Funalot, Benoit; Preux, Pierre-Marie; Couratier, Philippe

2008-10-01

371

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

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Full Text Available SciELO Brazil | Language: Portuguese Abstract in portuguese 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.

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

372

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)

Full Text Available SciELO Public Health | Language: Portuguese Abstract in portuguese 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.

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

373

Bioelectrical impedance phase angle as a prognostic indicator in advanced pancreatic cancer.  

Science.gov (United States)

Bioelectrical impedance analysis (BIA) is an easy-to-use, non-invasive and reproducible technique to evaluate changes in body composition and nutritional status. Phase angle, determined by BIA, has been found to be a prognostic indicator in several chronic conditions, such as HIV, liver cirrhosis, chronic obstructive pulmonary disease and lung cancer, and in patients undergoing dialysis. The present study investigated the prognostic role of phase angle in advanced pancreatic cancer. We evaluated a case series of fifty-eight stage IV pancreatic cancer patients treated at Cancer Treatment Centers of America at Midwestern Regional Medical Center (Zion, IL, USA) between January 2000 and July 2003. BIA was conducted on all patients using a bioelectrical impedance analyser that operated at 50 kHz. The phase angle was calculated as capacitance (Xc)/resistance (R) and expressed in degrees. 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 other clinical and nutritional variables. The correlations between phase angle and traditional nutritional measures were evaluated using Pearson and Spearman coefficients. Patients with phase angle median survival time of 6.3 (95% CI 3.5, 9.2) months (n 29), while those with phase angle >5.0 degrees had a median survival time of 10.2 (95% CI 9.6, 10.8) months (n 29); this difference was statistically significant (P=0.02). The present study demonstrates that phase angle is a strong prognostic indicator in advanced pancreatic cancer. Similar studies in other cancer settings with larger sample sizes are needed to further validate the prognostic significance of the phase angle. PMID:15613258

Gupta, Digant; Lis, Christopher G; Dahlk, Sadie L; Vashi, Pankaj G; Grutsch, James F; Lammersfeld, Carolyn A

2004-12-01

374

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

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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.

Grutsch James F

2009-01-01

375

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

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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.

Andre Luis Ferreira-Da-Silva

2012-07-01

376

A specific bioelectrical impedance equation to predict body composition in Turner's syndrome Uma equação de bioimpedanciometria específica para predição de composição corporal na síndrome de Turner  

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Full Text Available INTRODUCTION: Cardiovascular disease is one of the main causes for Turner syndrome (TS mortality and the evaluation of its risk factors such as excess body fat and its distribution is considered one of the major aspects of the adult patient care. OBJECTIVE: To develop and validate a specific bioelectrical impedance analysis (BIA equation to predict body composition in TS patients. SUBJECTS AND METHODS: Clinical and anthropometric data, dual-energy X-ray absorptiometry (DXA for total fat-free mass (FFM and BIA for resistance and reactance were obtained from 50 adult TS patients. Linear regression analysis was performed with multiple clinical and BIA data to obtain a predicting equation. RESULTS: The equation developed to estimate FFM in adult TS patients showed great consistency with DXA, elevated correlation (r = 0. 974 and determination (r² = 0. 948 coefficients and an adequate standard error estimate (SEE = 1.52 kg. CONCLUSIONS: The specific equation developed here allowed making an adequate FFM estimate in adult TS patients.INTRODUÇÃO: A doença cardiovascular é uma das principais causas de mortalidade na síndrome de Turner (ST e a avaliação de seus fatores de risco, como excesso e distribuição de gordura corporal, é considerada uma das principais metas da assistência às pacientes adultas. OBJETIVO: Desenvolver e validar uma equação de análise por bioimpedanciometria específica para estimar massa magra na ST. SUJEITOS E MÉTODOS: Foram obtidos dados clínicos, antropométricos, densitometria para massa magra total e bioimpedanciometria para resistência e reactância de 50 mulheres adultas com ST. Para obter uma equação preditora, foi realizada análise de regressão linear com múltiplos dados clínicos e da bioimpedanciometria. RESULTADOS: A equação desenvolvida para estimar massa magra na ST demonstrou grande concordância com a densitometria, elevados coeficientes de correlação (r = 0,974 e determinação (r² = 0,948 e um adequado erro padrão da estimativa (SEE = 1,52 kg. CONCLUSÕES: A equação desenvolvida possibilitou uma adequada estimativa da massa magra em adultas com ST.

Alexis D. Guedes

2010-02-01

377

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

Science.gov (United States)

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.

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

2014-01-01

378

[The frequency of breakfast and snack intake by pupils of primary schools in Biala Podlaska].  

Science.gov (United States)

The aim of this work was an attempt to assess the frequencies of breakfast and snack intake by schoolchildren and to identity its determinants. The study was carried out on spring in 2000, and included 2758 boys and girls aged 10-12 years, schoolchildren from nine primary schools in Bia?a Podlaska. It was found that more than 11% of schoolchildren had no breakfast at home, moreover 43% of boys and 53% of girls had no snack at school. The correlation between snack consumption at school and subjectively perceived living standard of their parents was significant in girls only (r = 0.26; p < or = 0.05). PMID:11878013

Czeczelewski, J

2001-01-01

379

Rola biomarkerów w stratyfikacji ryzyka u chorych z ostr? zatorowo?ci? p?ucn?  

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Full Text Available Badanie echokardiograficzne, umo?liwiaj?c ocen? funkcji prawej komory, ma podstawowe znaczenie w stratyfikacji ryzyka u stabilnych hemodynamicznie pacjentów z ostr? zatorowo?ci? p?ucn?. Alternatywn? do echokardiografii metod?, pozwalaj?c? na ocen? ryzyka powik?a? i kwalifikacj? do odpowiedniego leczenia, mo?e by? oznaczanie st??e? biomarkerów, takich jak: D-dimery, troponiny czy peptydy natriuretyczne. Nowym i obiecuj?cym biomarkerem, b?d?cym wczesnym wyk?adnikiem uszkodzenia kardiomiocytów przeci??onego serca, jest bia?ko wi???ce kwasy t?uszczowe.

Agnieszka Kap?on

2007-06-01

380

Oxygen exchange between (de)nitrifcation intermediates and H2O and its implications for source determination of NO3 and N2O: a review  

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Stable isotope analysis of oxygen (O) is increasingly used to determine the origin of nitrate (NO) and nitrous oxide (N2O) in the environment. The assumption underlying these studies is that the 18O signature of NO and N2O provides information on the different O sources (O2 and H2O) during the production of these compounds by various biochemical pathways. However, exchange of O atoms between H2O and intermediates of the (de)nitrification pathways may change the isotopic signal and thereby bia...

Kool, D. M.; Wrage, N.; Oenema, O.; Dolfing, J.; Groenigen, J. W.

2007-01-01

 
 
 
 
381

Parton Cascades, Small x, and Saturation in High Energy Collisions  

CERN Document Server

These lecture notes are a combination of two lectures and a contribution to the celebration of Andrzej Bia{\\l}as' birthday at the LI Cracow School of Theoretical Physics in June 2011. I here discuss the dynamics of particle production in high energy reactions. It includes parton cascades and hadronization in e+e--ann., small x evolution including the Double Leading Log approximation and the BFKL equation, saturation at high densities and the BK equation, and finally the Lund Dipole Cascade model for high energy collisions, which is implemented in the DIPSY MC.

Gustafson, Gösta

2012-01-01

382

Los nombres zapotecos de los hongos The zapotec names for fungi  

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Full Text Available Se presenta una lista de 210 nombres comunes de hongos en lengua zapoteca basada en 17 referencias bibliográficas. Los nombres se obtuvieron mediante investigación bibliográfica y sus interpretaciones se basan en investigación etnomicológica. Se hace un análisis de la etimología y significado de los nombres, así como, de su correspondencia científica. Los términos corresponden con 88 taxa. El estudio abarca las cuatro principales zonas de distribución de los zapotecos en Oaxaca, Sierra Norte, Sierra Sur, Istmo y Valles centrales. Los términos para designar a los hongos en su conjunto son baya, bella, beshia, be'ea, be'ya, bia y bi'a en la Sierra norte mientras que mbey y mey en la Sierra Sur. Los nombres de los hongos presentan muchas variantes, en áreas relativamente pequeñas los términos y sus raíces cambian. Sin embargo, es posible identificar especies como Amanta caesarea s.l., Cantharellus cibarius s.l. e Hydnum repandum s.l. cuyos nombres están relativamente conservados por lo que se infiere que son especies de alto valor cultural para los zapotecos.A list of 210 Zapotec common names for fungi obtained from 17 references is presented. The names were obtained from bibliography and their interpretations are based in ethomycological research. An analysis of etymology, meaning and scientific correspondence of each name was done. Terms correspond to 88 taxa. Names were obtained from an area including the four main distribution zones of Zapotecs in Oaxaca: Sierra Norte, Sierra Sur, Istmo and Valles centrales. The generic terms to design fungi were baya, bella, beshia, be'ea, be'ya, bia bel and bi'a in the Sierra Norte, while mbey and mey were used in the Sierra Sur. Fungi names present many variants, in small areas the terms and their roots change. However there are certain species with relatively conserved names as Amanta caesarea s.l., Cantharellus cibarius s.l. and Hydnum repandum s.l. We infer that these species have a high cultural significance for zapotecs.

Roberto Garibay Orijel

2009-12-01

383

Los nombres zapotecos de los hongos / The zapotec names for fungi  

Scientific Electronic Library Online (English)

Full Text Available SciELO Mexico | Language: Spanish Abstract in spanish Se presenta una lista de 210 nombres comunes de hongos en lengua zapoteca basada en 17 referencias bibliográficas. Los nombres se obtuvieron mediante investigación bibliográfica y sus interpretaciones se basan en investigación etnomicológica. Se hace un análisis de la etimología y significado de los [...] nombres, así como, de su correspondencia científica. Los términos corresponden con 88 taxa. El estudio abarca las cuatro principales zonas de distribución de los zapotecos en Oaxaca, Sierra Norte, Sierra Sur, Istmo y Valles centrales. Los términos para designar a los hongos en su conjunto son baya, bella, beshia, be'ea, be'ya, bia y bi'a en la Sierra norte mientras que mbey y mey en la Sierra Sur. Los nombres de los hongos presentan muchas variantes, en áreas relativamente pequeñas los términos y sus raíces cambian. Sin embargo, es posible identificar especies como Amanta caesarea s.l., Cantharellus cibarius s.l. e Hydnum repandum s.l. cuyos nombres están relativamente conservados por lo que se infiere que son especies de alto valor cultural para los zapotecos. Abstract in english A list of 210 Zapotec common names for fungi obtained from 17 references is presented. The names were obtained from bibliography and their interpretations are based in ethomycological research. An analysis of etymology, meaning and scientific correspondence of each name was done. Terms correspond to [...] 88 taxa. Names were obtained from an area including the four main distribution zones of Zapotecs in Oaxaca: Sierra Norte, Sierra Sur, Istmo and Valles centrales. The generic terms to design fungi were baya, bella, beshia, be'ea, be'ya, bia bel and bi'a in the Sierra Norte, while mbey and mey were used in the Sierra Sur. Fungi names present many variants, in small areas the terms and their roots change. However there are certain species with relatively conserved names as Amanta caesarea s.l., Cantharellus cibarius s.l. and Hydnum repandum s.l. We infer that these species have a high cultural significance for zapotecs.

Roberto, Garibay Orijel.

384

Normal affine surfaces with $\\bf C^*$-actions  

CERN Document Server

A classification of normal affine surfaces admitting a $\\bf C^*$-action was given in the work of Bia{\\l}ynicki-Birula, Fieseler and L. Kaup, Orlik and Wagreich, Rynes and others. We provide a simple alternative description of such surfaces in terms of their graded rings as well as by defining equations. This is based on a generalization of the Dolgachev-Pinkham-Demazure construction in the case of a hyperbolic grading. As an apllication we determine the structure of singularities, of the orbits and the divisor class groups for such surfaces.

Flenner, H; Flenner, Hubert; Zaidenberg, Mikhail

2002-01-01

385

Charge and spin transport in spin valves with anisotropic spin relaxation  

CERN Document Server

We investigate effects of spin-orbit splitting on electronic transport in a spin valve consisting of a large quantum dot defined on a two-dimensional electron gas with two ferromagnetic contacts. In the presence of both structure inversion asymmetry (SIA) and bulk inversion asymmetry (BIA) a giant anisotropy in the spin-relaxation times has been predicted. We show how such an anisotropy affects the electronic transport properties such as the angular magnetoresistance and the spin-transfer torque. Counterintuitively, anisotropic spin-relaxation processes sometimes enhance the spin accumulation.

Saarikoski, H; Bauer, G E W

2006-01-01

386

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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Full Text Available 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 (pIntroducción: 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 corporal 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 <0.01. No hubo concordancia entre los valores obtenidos por BIA y DXA segmentaria. Conclusiones: Las mediciones antropométricas como PT, CC y CM son importantes para el seguimiento de los cambios en la composición corporal de los pacientes infectados por VIH que reciben tratamiento antirretroviral. La BIA segmental no demostró ser adecuado para la evaluación de la composición corporal en pacientes infectados por VIH.

Rebeca Antunes Beraldo

2011-12-01

387

Contribution of DNA polymerase eta to immunoglobulin gene hypermutation in the mouse.  

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The mutation pattern of immunoglobulin genes was studied in mice deficient for DNA polymerase eta, a translesional polymerase whose inactivation is responsible for the xeroderma pigmentosum variant (XP-V) syndrome in humans. Mutations show an 85% G/C biased pattern, similar to that reported for XP-V patients. Breeding these mice with animals harboring the stop codon mutation of the 129/Olain background in their DNA polymerase iota gene did not alter this pattern further. Although this G/C bia...

Delbos, Fre?de?ric; Smet, Annie; Faili, Ahmad; Aoufouchi, Said; Weill, Jean-claude; Reynaud, Claude-agne?s

2005-01-01

388

On the formation of blue ice on Byrd Glacier, Antarctica  

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Blue-ice areas (BIAs) cover similar to 1% of the East Antarctic ice sheet and are visual evidence of persistent ablation. In these regions, more snow is sublimated and/or eroded than is accumulated. The physical processes driving the formation of BIAs are poorly understood. Here we combine a firn-densification model with high-resolution (5.5 km) maps of surface mass balance and ice velocity to simulate the build-up and removal of a firn layer along an ice flowline passing Byrd Glacier. A BIA ...

2014-01-01

389

Lanthanide(III) and Yttrium(III) Complexes of Benzimidazole-2-Acetic Acid: Synthesis, Characterisation and Effect of La(III) Complex on Germination of Wheat  

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The synthesis and characterisation of lanthanide(III) and yttrium(III) nitrate complexes of benzimidazole-2-acetic acid (HBIA) are reported. The complexes have been characterised by elemental analysis, molar conductance, magnetic studies, IR, 1H NMR, UV-visible, EPR, and TG/DTA studies. They have the stoichiometry [Ln3(BIA)2(NO3)7(H2O)4]⋅3H2O where Ln=La(III), Pr(III), Nd(II), Sm(III), Eu(III), Gd(III), Tb(III), Dy(III), and Y(III). The effect of La(III) complex on germination, c...

2006-01-01

390

Poverty as an Abuse of Human Rights in Ghana. : A grass roots perspective on poverty and human rights.  

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The study aimed at getting a grass root opinion on poverty and why Ghana is still poor after 50 years of independence in spite of her richness in natural resources, second largest producer of cocoa in the word and appreciable stable political environment. The opinions of the ordinary people in the Bia district and their observed living conditions was analysed in line with theoretical basis of the study and previous studies to justify the stance that poverty should be considered as an abuse of...

Armah, Collins

2009-01-01

391

Occurrence of keratinophilic fungus Lagenidium humanum Karling in the surface waters of Podlasie.  

Science.gov (United States)

The occurrence of keratinophilic fungus Lagenidium humanum Karling was investigated, using the bait method, in relation to the environmental conditions in the surface waters of the River Bug, Supra?l and Zwierzyniec in Podlasie in the years 1995-2000. The fungus was found to be the most common at eutrophized sites of the River Supra?l and Bia?a, and snake exuviae was the most frequently colonized bait. It was revealed that the occurrence of Lagenidium humanum in the water reservoirs was mostly affected by the content of biogenes, suspended solids, oxidability and temperature. Its appearance was seasonal, being most common in spring and autumn. PMID:12533960

Kiziewicz, Bozena; Czeczuga, Bazyli

2002-01-01

392