La obra (incompleta de Alejandra Pizarnik: un acercamiento a su obra inédita a partir de Otoño o los de arriba

Directory of Open Access Journals (Sweden)

Alejandra Hurtado Tarazona

2015-07-01

Full Text Available Pizarnik is a writer whose work is highly interesting from the editorial point of view, for two particular situations. First, the published work is identified as “complete” when there is no complete edition of this author, because it bears the burden of censorship. Second, this gap causes the necessity of going to Princeton, where is the “original” work of Pizarnik in a more complete version. This paper tries to explore these points, starting from the experience of editing the unpublished work Otoño o los de arriba.

Anatomical Changes and Audiological Profile in Branchio-oto-renal Syndrome: A Literature Review

Directory of Open Access Journals (Sweden)

Lindau, Tâmara Andrade

2014-01-01

Full Text Available Introduction Branchio-oto-renal (BOR syndrome is an autosomal-dominant genetic condition with high penetrance and variable expressivity, with an estimated prevalence of 1 in 40,000. Approximately 40% of the patients with the syndrome have mutations in the gene EYA1, located at chromosomal region 8q13.3, and 5% have mutations in the gene SIX5 in chromosome region 19q13. The phenotype of this syndrome is characterized by preauricular fistulas; structural malformations of the external, middle, and inner ears; branchial fistulas; renal disorders; cleft palate; and variable type and degree of hearing loss. Aim Hearing loss is part of BOR syndrome phenotype. The aim of this study was to present a literature review on the anatomical aspects and audiological profile of BOR syndrome. Data Synthesis Thirty-four studies were selected for analysis. Some aspects when specifying the phenotype of BOR syndrome are controversial, especially those issues related to the audiological profile in which there was variability on auditory standard, hearing loss progression, and type and degree of the hearing loss. Mixed loss was the most common type of hearing loss among the studies; however, there was no consensus among studies regarding the degree of the hearing loss.

Management of somatic pain induced by head-and-neck cancer treatment: definition and assessment. Guidelines of the French Oto-Rhino-Laryngology- Head and Neck Surgery Society (SFORL).

Science.gov (United States)

Binczak, M; Navez, M; Perrichon, C; Blanchard, D; Bollet, M; Calmels, P; Couturaud, C; Dreyer, C; Espitalier, F; Testelin, S; Albert, S; Morinière, S

2014-09-01

The authors present the guidelines of the French Oto-Rhino-Laryngology- Head and Neck Surgery Society (Société Française d'Oto-rhino-Laryngologie et de Chirurgie de la Face et du Cou [SFORL]) for the management of somatic pain induced by head-and-neck cancer treatment, and in particular the instruments needed for the definition and initial assessment of the various types of pain. A multidisciplinary work group was entrusted with a review of the scientific literature on the above topic. Guidelines were drawn up, based on the articles retrieved and the group members' individual experience. They were then read over by an editorial group independent of the work group. The final version was established in a coordination meeting. The guidelines were graded as A, B, C or expert opinion, by decreasing level of evidence. The priority is to eliminate tumoral recurrence when pain reappears or changes following head-and-neck cancer treatment. Neuropathic pain screening instruments and pain assessment scales should be used to assess pain intensity and treatment efficacy. Functional rehabilitation sessions should be prescribed to reduce musculoskeletal pain and prevent ankylosis and postural disorder. Psychotherapy and mind-body therapy, when available, should be provided in case of chronic pain. In case of recalcitrant complex pain, referral should be made to a multidisciplinary pain structure. The management of somatic pain induced by head-and-neck cancer treatment above all requires identifying and assessing the intensity of the various types of pain involved, their functional impact and their emotional component. Copyright © 2014 Elsevier Masson SAS. All rights reserved.

Management of somatic pain induced by treatment of head and neck cancer: Postoperative pain. Guidelines of the French Oto-Rhino-Laryngology--Head and Neck Surgery Society (SFORL).

Science.gov (United States)

Espitalier, F; Testelin, S; Blanchard, D; Binczak, M; Bollet, M; Calmels, P; Couturaud, C; Dreyer, C; Navez, M; Perrichon, C; Morinière, S; Albert, S

2014-09-01

To present the guidelines of the French Oto-Rhino-Laryngology--Head and Neck Surgery Society (SFORL) concerning the management of somatic pain induced by the treatment of head and neck cancer, and in particular the management of early and late post-surgical pain. A multidisciplinary work group conducted a review of the scientific literature on the study topic. An editorial group subsequently read the resulting guidelines before validation. It is recommended to prevent onset of pain caused by malpositioning on the operating table, as well as pain related to postoperative care. During surgery, it is recommended to spare nerve and muscle structures as far as possible to limit painful sequelae. Management of early postoperative pain upon tumor resection and flap harvesting sites requires patient-controlled analgesia by morphine pump. Physical therapy is recommended after flap harvesting to minimize painful sequelae. Preventive and curative measures should be undertaken for appropriate management of post-surgical pain in the treatment of head and neck cancers. Copyright © 2014 Elsevier Masson SAS. All rights reserved.

Otolaryngology - Head and Neck Surgeon unemployment in Canada: a cross-sectional survey of graduating Otolaryngology - Head and Neck Surgery residents.

Science.gov (United States)

Brandt, Michael G; Scott, Grace M; Doyle, Philip C; Ballagh, Robert H

2014-09-16

Recently graduated Otolaryngology - Head and Neck Surgeons (OTO-HNS) are facing an employment crisis. To date, there has been no systematic evaluation of the factors contributing to this situation, graduating OTO-HNS trainee employment rates, nor the employment concerns of these graduating residents. This investigation sought to empirically evaluate prospective OTO-HNS graduate employment, identify factors contributing to this situation, and provide suggestions going forward. A cross-sectional survey of the 2014 graduating cohort of OTO-HNS residents was conducted 6-months prior to graduation, and immediately following residency graduation. Surveyed items focused on the demographics of the graduating cohort, their future training and employment plans, and their concerns relative to the OTO-HNS employment situation. All twenty-nine Canadian medical school graduated OTO-HNS residents completed the initial survey, with 93% responding at the completion of residency. Only 6 (22%) indicated confirmed employment following residency training. 78% indicated that they were pursuing fellowship training. 90% identified the pursuit of fellowship training as a moderately influenced by limited job opportunities. The ability to find and secure full-time employment, losing technical skills if underemployed/unemployed, and being required to consider working in a less-desired city/province were most concerning. 34% of the residents felt that they were appropriately counseled during their residency training about employment. 90% felt that greater efforts should be made to proactively match residency-training positions to forecasted job opportunities. Canadian OTO-HN Surgeons lack confirmed employment, are choosing to pursue fellowship training to defer employment, and are facing startling levels of under- and unemployment. A multitude of factors have contributed to this situation and immediate action is required to rectify this slowly evolving catastrophe.

SAMOOSKRBA GOSPODINJSKEGA ODJEMA S SONČNO ELEKTRARNO IN BATERIJSKIM SISTEMOM

OpenAIRE

VIDMAJER, DAVID

2016-01-01

Diplomsko delo opiše in analizira otočno delovanje stanovanjskega objekta za štiričlansko družino z izbiro primerne sončne elektrarne, litij-ionskih baterij in dizelskega agregata (off-grid system). V diplomski nalogi smo na kratko predstavili problematiko delovanja sončne elektrarne, delovanje otočnega sistema in elemente, ki so nujni za njegovo obratovanje, ter opis in delovanje baterij. Sledi opis enačb za modeliranje komponent otočnega sistema, po kateremu principu smo naredili tudi nadal...

Superior Reproducibility of the Leading to Leading Edge and Inner to Inner Edge Methods in the Ultrasound Assessment of Maximum Abdominal Aortic Diameter.

Science.gov (United States)

Borgbjerg, Jens; Bøgsted, Martin; Lindholt, Jes S; Behr-Rasmussen, Carsten; Hørlyck, Arne; Frøkjær, Jens B

2018-02-01

Controversy exists regarding optimal caliper placement in ultrasound assessment of maximum abdominal aortic diameter. This study aimed primarily to determine reproducibility of caliper placement in relation to the aortic wall with the three principal methods: leading to leading edge (LTL), inner to inner edge (ITI), and outer to outer edge (OTO). The secondary aim was to assess the mean difference between the OTO, ITI, and LTL diameters and estimate the impact of using either of these methods on abdominal aortic aneurysm (AAA) prevalence in a screening program. Radiologists (n=18) assessed the maximum antero-posterior abdominal aortic diameter by completing repeated caliper placements with the OTO, LTL, and ITI methods on 50 still abdominal aortic images obtained from an AAA screening program. Inter-observer reproducibility was calculated as the limit of agreement with the mean (LoA), which represents expected deviation of a single observer from the mean of all observers. Intra-observer reproducibility was assessed averaging the LoA for each observer with their repeated measurements. Based on data from an AAA screening trial and the estimated mean differences between the three principal methods, AAA prevalence was estimated using each of the methods. The inter-observer LoA of the OTO, ITI, and LTL was 2.6, 1.9, and 1.9 mm, whereas the intra-observer LoA was 2.0, 1.6, and 1.5 mm, respectively. Mean differences of 5.0 mm were found between OTO and ITI measurements, 2.6 mm between OTO and LTL measurements, and 2.4 mm between LTL and ITI measurements. The prevalence of AAA almost doubled using OTO instead of ITI, while the difference between ITI and LTL was minor (3.3% vs. 4.0% AAA). The study shows superior reproducibility of LTL and ITI compared with the OTO method of caliper placement in ultrasound determination of maximum abdominal aortic diameter, and the choice of caliper placement method significantly affects the prevalence of AAAs in screening programs

Case series

African Journals Online (AJOL)

ebutamanya

8 mai 2015 ... 1Service d'Oto-rhino-laryngologie et Chirurgie Cervico-faciale, Hôpital Militaire Avicenne, Marrakech, Maroc. &Corresponding author: Mohamed Mliha Touati, Service d'Oto-rhino-laryngologie et Chirurgie Cervico-faciale, Hôpital Militaire Avicenne, Marrakech,. Maroc. Key words: otite moyenne chronique ...

Otolaryngology--head and neck surgery in undergraduate medical education: advances and innovations.

Science.gov (United States)

Fung, Kevin

2015-02-01

Medical students graduate with the knowledge and skills to be undifferentiated general physicians. Otolaryngology-head and neck surgery (OtoHNS) is an essential component of primary healthcare, but is disproportionately under-represented in undergraduate medical education (UME). Advances and innovations in educational technology may represent an exciting and creative solution to this important problem. Failure to meet this educational need will result in substantial downstream effects in primary healthcare delivery. The objectives of this study were to 1) demonstrate current deficits in OtoHNS teaching at the UME level; 2) develop, validate, and critically appraise educational innovations that may enrich OtoHNS teaching in medical school curricula; and 3) propose a process for standardization of learning objectives for OtoHNS in UME as it relates to development and deployment of such educational tools. A white paper, prepared as a Triological Society thesis, which consolidates a prospective 10-year investigation of the problem of and potential solutions for under-representation of OtoHNS in UME. Cited datasets include multicenter surveys, cohort studies, and prospective, randomized controlled trials. A series of published and unpublished data were synthesized that addresses the following: 1) the current state of OtoHNS teaching at the UME level with respect to content, volume, structure, and methods; and 2) educational innovations including e-learning and simulation with emphasis on validity and learning effectiveness. Educational innovations specific to postgraduate (residency) training were excluded. Data support the observation that there is uniformly disproportionate under-representation of OtoHNS within UME curricula. Medical school graduates, especially those pursuing primary care specialties, report poor overall comfort levels in managing OtoHNS problems. A series of novel teaching methods were developed and validated using e-learning and simulation

Sobre: Paris era una fiesta de Ernest Hemingway

Directory of Open Access Journals (Sweden)

Hugo Ruiz Rojas

1966-01-01

Full Text Available Es este un libro publicado después de la muerte del autor, pero escrito entre el otoño de 1957 y el de 1960. Hemingway lo inició y terminó en Cuba, trabajándolo en Ketchum (Idaho por el invierno de 1958-59. Llevó luego el manuscrito a España, en 1959, y volvió con él a Cuba y luego otra vez a Ketchum, a fines de otoño, para terminarlo en la primavera de 1960, tras una interrupción en la cual escribió un libro sobre la rivalidad en los ruedos de España entre los toreros Antonio Ordóñez y Luis Miguel Dominguín, El verano peligroso. Retocó el libro en el otoño de 1960, en Ketchum.

Integrated Control Sytems of Mycotoxin Contamination

Directory of Open Access Journals (Sweden)

Name\tRomsyah

2006-03-01

Full Text Available Contamination of mycotoxins produced by Aspergillus spp., Fusarium spp . and Penicillium s pp . i n agricultural products has been a concern regarding their effect to health and economic impact. Integrated control system should be based on Hazard Analysis and Critical Control Point (HACCP approach involving Good Agricultural Practices (GAP and Good Manufacturing Practices (GMP . Prevention should be carried out through pre harvest, harvest, post harvest, as well as control quality at all stages of production. Pre harvest control is conducted through the selection of resistant varieties, insect control and weeds management mechanically or applying fungicides and herbicides, plant rotation, irrigation and soil management, as well as biological control . Harvesting at the right time using clean equipments from fungal contamination and insect infestation avoids the contamination of mycotoxins . Post harvest control by physical selection, washing and dilution, drying, storage, application of chemicals and binding agents, natural products, nutrients and vitamins, microbiological control, heating and radiation could also minimize mycotoxin in food and feed . Although chemicals can effectively reduce mycotoxin, the use of those on food/feed should be considered the safety . The addition of natural products, nutrition supplements and vitamins suppress the negative effect of mycotoxin on animals . The use of non-toxigenic fungi and other microbes as biological control is the effective and safe methods for food/feed . The implementation of integrated mycotoxin control system by utilizing the HACCP concept would meet the qualified and safe food/feed products .

Integrated Control Sytems of Mycotoxin Contamination

OpenAIRE

Name Romsyah

2006-01-01

Contamination of mycotoxins produced by Aspergillus spp., Fusarium spp . and Penicillium s pp . i n agricultural products has been a concern regarding their effect to health and economic impact. Integrated control system should be based on Hazard Analysis and Critical Control Point (HACCP) approach involving Good Agricultural Practices (GAP) and Good Manufacturing Practices (GMP) . Prevention should be carried out through pre harvest, harvest, post harvest, as well as control quality at all s...

PENGARUH MOTIVASI KERJA DAN KEADILAN ORGANISASI TERHADAP ORGANIZATIONAL CITIZENSHIP BEHAVIOR (OCB

Directory of Open Access Journals (Sweden)

Nazmah Nazmah

2017-08-01

Full Text Available Penelitian ini bertujuan untuk menguji pengaruh motivasi kerja dan keadilan organisasi terhadap organizational citizenship behaviour (OCB. Populasi penelitian adalah karyawan tetap/organikPT. Summit Oto Finance dengan masa kerja lebih dari dua tahun. Jumlah anggota populasi adalah 61 orang. Dikarenakan jumlah subyek yang terbatas, maka seluruhnya dilibatkan sebagai sampel penelitian (teknik total sampling. Data penelitian dikumpulkan dengan menggunakan skala motivasi kerja, skala persepsi keadilan organisas,i dan skalaorganizational citizenship behaviour (OCB. Analisis regresi linier berganda digunakan untuk menguji hipotesis penelitian. Analisa data menunjukkanadanya pengaruh  yang signifikan antara motivasi kerja dan keadilan organisasi terhadap organizational citizenship behavior pada karyawan PT. Summit Oto Finance. Variabel motivasi kerja dan keadilan organisasi memiliki kontribusi terhadap organizational citizenship behavior sebesar 54.7%. Secara spesifik diketahui bahwa karyawan PT. Summit Oto Finance memiliki motivasi kerja, persepsi mengenai keadilan organisasi, serta organizational citizenship behavior yang berada di kategori sedang.

Presidential Management Fellows (PMF) Talent Acquisition System, PMF-TAS (ACCESS CONTROLLED)

Data.gov (United States)

Office of Personnel Management — Application and Assessment system for Presidential Management Fellows (PMF) and PMF Science, Technology, Engineering, and Math (STEM) programs. This sytem is access...

An appraisal of the participation of Egun women in fisheries in Otoawori of Ojo Local Government Area in Lagos State, Nigeria

OpenAIRE

Imoukhuede, D.O.; Joseph, F.; Udolisa, R.E.K.

2007-01-01

The study was carried out to identify the roles of Egun Women in Fisheries in Oto-Awori of Ojo Local Government Area of Lagos State, as well as factors affecting their roles. Data were collected using the purposive sampling to select 20 Egun Women involved in Fisheries in each of Araromi, Idumosan, lIepete, Idomila and Ebute areas in Oto-Awori, using questionnaire method. Data were analysed using the percentages and Chi-square tests. The results revealed that 80% of the Egun Women were engage...

Replication of recently identified systemic lupus erythematosus genetic associations: a case-control study

Czech Academy of Sciences Publication Activity Database

Suarez-Gestal, M.; Calaza, M.; Endreffy, E.; Pullmann, R.; Ordi-Ros, J.; Sebastiani, D.G.; Růžičková, Šárka; Santos, J.M.; Papasteriades, C.; Marchini, M.; Skopouli, F.N.; Suarez, A.; Blanco, F.J.; D'Alfonso, S.; Bijl, M.; Carreira, P.; Witte, T.; Migliaresi, S.; Gomez-Reino, J.J.; Gonzalez, A.

2009-01-01

Roč. 11, č. 3 (2009), R69 ISSN 1478-6362 Keywords : Single nucleotide polymorphism susceptibility * sytemic lupus erythematosus Subject RIV: EB - Genetics ; Molecular Biology Impact factor: 4.271, year: 2009

Otoneurologisk udredning ved akut opstået svimmelhed

DEFF Research Database (Denmark)

Hansen, Søren; Ninn-Pedersen, Mirjana; Thomasen, Per Caye

2011-01-01

Benign paroxysmal positional vertigo, vestibular neuronitis and Menière's disease cause most cases of acute vertigo. However, doctors must consider central neurological reasons to vertigo. If it is determined that a patient has oto-neurological vertigo, the next task is to determine whether...... the patient has a peripheral or a central cause of vertigo, if the condition is potentially lethal and if there is a need for acute radiological imaging and/or medical intervention. This review highlights the oto-neurological approach to the dizzy patient with particular focus on the patient's history...

Endoscopy-Assisted Ear Surgery for Treatment of Chronic Otitis Media With Cholesteatoma, Adhesion, or Retraction Pockets.

Science.gov (United States)

Ulku, Cagatay Han

2017-06-01

The objective of this study was to analyze the results of endoscopy-assisted ear surgery for the treatment of chronic otitis media with cholesteatoma, adhesion, or retraction pockets.Fifty-one patients who underwent oto-endoscopy-assisted canal wall up tympanomastoid surgery and/or limited anterior atticotomy with tympanoplasty for chronic otitis media with cholesteatoma, adhesion, or retraction pocket from 2006 to 2013 have been included in this study. Eradication of the disease from the middle ear and mastoid air cells was achieved by combination of the oto-microscobic and oto-endoscopic approaches. Second look surgery was performed 18 months later from the initial surgery in selected patients. Age, gender, pre-/postoperative otoscopy findings/audiograms, type of the used prostheses, and follow-up time were obtained from the patient's file. Anatomic integrity rates of the tympanic membrane, the mean gains of air bone gap, on pure-tone audiogram at 4 frequencies and existence of the residual disease were reviewed parameters. Functional evaluation was made in patients with intact tympanic membrane.Of the 51 patients, the ratios of the chronic otitis media with cholesteatoma and isolated adhesive otitis or retraction pocket cases were 74.5% (38/51) and 25.5% (13/51), respectively. Ossicular chain reconstruction was made with PORP in 27 patients and TORP in 20 patients, whereas the ossicular chain was intact in 4 patients. Anatomic integrity rates of the tympanic membrane were 90.2% (46/51). The overall (n = 46) pre-/postoperative mean ABG obtained at 4 frequencies were 28.3 ± 12.26 and 9.18 ± 5.68 dB (P otitis media with cholesteatoma patients. However, there was no recurrence or new cholesteatoma formation in isolated retraction pockets or adhesive otitis patients.Oto-endoscopic eradication of the cholesteatoma or epithelial tissue from hidden area after the all visible cholesteatoma removal by oto-microscope improves the quality of surgery

Non-Pyrotechnic Latch and Release System for Aerospace and Other Applications, Phase II

Data.gov (United States)

National Aeronautics and Space Administration — American remote Vision Company (ARVC) will continue to research and develop a new non-pryotechnic latch and release sytem for use in servicing and flight release...

Out-of-Time-Ordered Density Correlators in Luttinger Liquids.

Science.gov (United States)

Dóra, Balázs; Moessner, Roderich

2017-07-14

Information scrambling and the butterfly effect in chaotic quantum systems can be diagnosed by out-of-time-ordered (OTO) commutators through an exponential growth and large late time value. We show that the latter feature shows up in a strongly correlated many-body system, a Luttinger liquid, whose density fluctuations we study at long and short wavelengths, both in equilibrium and after a quantum quench. We find rich behavior combining robustly universal and nonuniversal features. The OTO commutators display temperature- and initial-state-independent behavior and grow as t^{2} for short times. For the short-wavelength density operator, they reach a sizable value after the light cone only in an interacting Luttinger liquid, where the bare excitations break up into collective modes. This challenges the common interpretation of the OTO commutator in chaotic systems. We benchmark our findings numerically on an interacting spinless fermion model in 1D and find persistence of central features even in the nonintegrable case. As a nonuniversal feature, the short-time growth exhibits a distance-dependent power.

Unidad didáctica "El Otoño". Propuesta de Diseño para el Segundo Ciclo de Educación Infantil (3-6 años

Directory of Open Access Journals (Sweden)

Dionisio de CASTRO CARDOSO

2009-11-01

Full Text Available RESUMEN: Las Unidades Didácticas ocupan un lugar central entre las tareas específicas del personal docente. Por este motivo cabe esperar que la calidad de los aprendizajes obtenidos se encuentre afectada, en gran medida, por el grado de dominio alcanzado por estos profesionales en la programación, puesta en práctica y evaluación de las mismas. El Objetivo de este trabajo es facilitar un ejemplo de diseño o programación de la Unidad Didáctica "El Otoño" para el segundo ciclo de Educación Infantil, cuyo alumnado tiene entre tres y seis años. Con el fin de situar mejor el diseño de la Unidad Didáctica, hemos querido partir de la consideración del alumnado como conjunto de personas con unas peculiaridades propias —algunas las cuales se deben a las características que, por edad, corresponden a su desarrollo- y que es preciso conocer. Antes de abordar nuestra propuesta de diseño concreta, incluimos algunas ideas teóricas básicas. Para finalizar, contemplamos, de forma general, la ejecución o desarrollo y la evaluación de resultados.ABSTRACT: Teaching units occupy a central place among the specific tasks of the teacher, and therefore, the quality of learning can be expected to be greatly affected by how well these professionals handle the programming, putting into practice and evaluating of these units. The aim of this study is to provide an example of a design or programming of the teaching unit "Autumn" for the second cycle of early childhood education (3 to 6 year olds. In order to best situate the design of the teaching unit, the pupils have been considered as a set of persons with their own peculiarities —some of which are due to the characteristics which correspond to their development by age— and which must be taken into account. Before dealing with our actual proposal for a specific design, we include some basic theoretical ideas. Finally, we consider the general aspects of its carrying out and the evaluation of the

Are Patients with Spontaneous CSF Otorrhea and Superior Canal Dehiscence Congenitally Predisposed to Their Disorders?

Science.gov (United States)

Stevens, Shawn M; Hock, Kiefer; Samy, Ravi N; Pensak, Myles L

2018-04-01

Objectives (1) Compare lateral skull base (LSB) height/thickness in patients with spontaneous cerebrospinal fluid otorrhea (CSF), superior canal dehiscence (SCD), acoustic neuromas (AN), and otosclerosis (OTO). (2) Perform correlations between age, body mass index (BMI), sex, and LSB height/thickness. Study Design Case series with chart review. Setting Tertiary referral center. Subjects and Methods Patients with CSF, SCD, AN, and OTO diagnosed from 2006 to 2016 were included if they had high-definition temporal bone computed tomography (CT) and absence of trauma, radiation, chronic ear disease, and/or congenital anomaly. CT-based measurements included LSB height/thickness and pneumatization rates overlaying the external auditory canal (EAC), tegmen tympani (TgT), perigeniculate region (PG), and internal auditory canal (IAC). LSB height/thickness, age, sex, and BMI were statistically correlated. In total, 256 patients and 493 ears (109 CSF, 115 SCD, 269 AN/OTO) were measured. Results Patients with CSF had significantly higher BMIs than the other groups ( P CSF and SCD had similar radiographic LSB phenotypes at most measured locations. Both groups exhibited a significantly lower LSB height compared to the AN and OTO groups (mean, 3.9-4.2 mm vs 4.9-5.6 mm; P CSF and SCD also demonstrated significantly lower pneumatization rates, as low as 17% to 23% overlaying the PG and IAC ( P CSF and SCD exhibit similar radiographic LSB phenotypes. Age, sex, and BMI do not significantly correlate with LSB height/thickness. These data support the theory that CSF and SCD arise via similar congenital pathoetiologic mechanisms.

CDP a graphic system for the interactive simulation and the dynamic analysis of continuous systems

International Nuclear Information System (INIS)

Ricci, A.; Teolis, A.

1973-01-01

An IBM 2250 graphic system for the interactive simulation of continuous sytems is illustrated. Time dependent quantities can be plotted or an animated, real or schematic, representation of the system being studied can be given

Estrategias de alimentación y cultivo de la dorada (sparus aurata). Regulación endocrina y estado inmunopatológico.

OpenAIRE

Mingarro Martí, Mónica

2004-01-01

RESUMEN En la presente tesis doctoral se abordó la regulación de la somatolactina (SL) y del eje somatotrópico (GH-IGF-I) en tres ciclos de engorde con inicio en distinta época del año (primavera, verano y otoño). Se determinaron variaciones estacionales de GH e IGF-I con picos en el periodo estival y los niveles más bajos en otoño e invierno. Los niveles circulantes de GH estuvieron correlacionados positivamente con las tasas de ingesta de alimento, mientras que los niveles de IGF-I lo es...

Guideline for the preparation of safe operating procedures

International Nuclear Information System (INIS)

Stinnett, L.; Carroll, M.M.; Crooks, D.L.; Doyle, J.R.; Jeblick, H.G.; Kessel, D.S.; Tippy, M.W.; Stuckey, J.M.

1981-03-01

These procedures are written for activities that involve the use of explosives, dangerous chemicals, radioactive materials, hazardous sytems, and for certain types of operational facilities which present hazards. This guideline presents a suggested Safe Operating Procedures format

Leisure robotics: an African child's gateway to programming

CSIR Research Space (South Africa)

Smith, Andrew C

2009-11-01

Full Text Available This paper describes an alternative programming system which can be constructed with minimal mechanical and electronic knowledge in an environment such as FabLab. This sytem, dubbed GameBlocks, makes use of tangible interfaces to control...

LWIR Snapshot Imaging Polarimeter

Energy Technology Data Exchange (ETDEWEB)

Dr. Robert E Sampson

2009-04-01

This report describes the results of a phase 1 STTR to design a longwave infrared imaging polarimeter. The system design, expected performance and components needed to construct the imaging polarimeter are described. Expected performance is modeled and sytem specifications are presented.

Satellite technology and the control of parasitic diseases in Africa ...

African Journals Online (AJOL)

The potential application of these techniques in the surveillance, control and prevention of parasitic diseases in Africa is explored in this write-up. Keywords: surveillance, parasitic diseases, satellite techniques, remote sensing, Geographical Information System (GIS), Global Positioning Sytem (GPS), human and robotic, ...

Speect: a multilingual text-to-speech system

CSIR Research Space (South Africa)

Louw, JA

2008-11-01

Full Text Available This paper introduces a new multilingual text-to-speech system, which we call Speect (Speech synthesis with extensible architecture), aiming to address the shortcomings of using Festival as a research sytem and Flite as a deployment system in a...

Pediatric radiology in oto-rhino-laryngology

OpenAIRE

von Kalle, T; Koitschev, A

2014-01-01

[english] Head and neck diseases in children and adolescents present special diagnostic and differential diagnostic challenges to ENT surgeons as well as to radiologists. Both disciplines have to adapt the latest radiological and interventional technologies to the needs of the pediatric patient in order to enable a minimally invasive but successful diagnostic procedure.High quality sonography by an experienced examiner is often the only imaging technique that is necessary in children and adol...

El habitante del otoño

Directory of Open Access Journals (Sweden)

Pappenheim Murcia Ruth

1999-06-01

Full Text Available

Al conmemorarse los doscientos años del nacimiento de Alexander Pushkin, el más grande poeta ruso, Rubén Darío Flórez entrega esta antología de poemas, la mayoría de los cuales nunca habían sido traducidos al español. Como preámbulo se encuentra una biografía apasionante, novelesca, del poeta ruso, cuya lectura es indispensable para captar el sentido cultural, histórico y personal de los poemas.

[Position paper of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery and the German Society of Phoniatrics and Pediatric Audiology - current state of clinical and endoscopic diagnostics, evaluation, and therapy of swallowing disorders in children and adults].

Science.gov (United States)

Arens, C; Herrmann, I F; Rohrbach, S; Schwemmle, C; Nawka, T

2015-03-01

Position Paper of the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery and the German Society of Phoniatrics and Pediatric Audiology - Current State of Clinical and Endoscopic Diagnostics, Evaluation, and Therapy of Swallowing Disorders in Children and AdultsSwallowing disorders are frequent. The main concern is mortality due to aspiration induced pneumonia and malnutrition. On the other hand quality of life is severely affected. The demographic trend indicates an increase of dysphagia in the future. Neurodegenerative diseases, tumors of the digestive tract and sequelae of tumor treatment in the head and neck region are the main pathologic entities.Predominantly ENT physicians and phoniatrists, are asked for diagnostics and therapy who will coordinate the interdisciplinary treatment according to the endoscopic findings.A differentiated approach in history, diagnostics, and symptom oriented treatment is necessary for the mostly complex disorders. The integration of non-medical personnel such as logopeds (speech language pathologists), physiotherapists, and occupational therapists in planning and executing an effective therapy expands and completes the patient-oriented care. Conservative treatment by these therapists is an important pillar in the treatment. Parts of the specific diagnostics can be taken over by them in close cooperation.In particular an interdisciplinary cooperation with the staff from intensive care medicine is indispensable.The diagnostic procedures of specific endoscopy as described in this position paper are part of the primary and fundamental tasks of ENT specialists and phoniatrists.Endoscopy is a medical service that is basically not delegable. Consequently substitution of the physician is precluded. © Georg Thieme Verlag KG Stuttgart · New York.

75 FR 10330 - Nebraska Disaster #NE-00033

Science.gov (United States)

2010-03-05

..., Madison, Morrill, Nance, Nemaha, Otoe, Pawnee, Rock, Saline, Saunders, Seward, Stanton, Thayer, Thurston... Domestic Assistance Numbers 59002 and 59008) James E. Rivera, Associate Administrator for Disaster...

Pyrolysis of blended animal manures to produce combustible gas and value-added charcoal adsorbent

Science.gov (United States)

Blended swine solids, chicken litter, and rye grass were pyrolyzed using a skid-mounted sytem. Produced gas composition was analyzed for major hydrocarbons and S-containing compounds. Charcoal was analyzed for its surface functional groups, contact angles, HHV, and total element contents. Some of th...

Multilingual domain modeling in Twenty-One: automatic creation of a bi-directional translation lexicon from a parallel corpus

NARCIS (Netherlands)

Hiemstra, Djoerd

1998-01-01

Within the project Twenty-One, which aims at the effective dissemination of information on ecology and sustainable development, a sytem is developed that supports cross-language information retrieval in any of the four languages Dutch, English, French and German. Knowledge of this application domain

Barefoot PV technology; Barfuss-PV

Energy Technology Data Exchange (ETDEWEB)

Weber, Eva

2009-07-01

Grameen Shakti is Bangladesh's most successful industrial producer. They offer excellent customer service and an innovative financing model by credit instalments, a variant of the microcredit sytem for which their parent company, Grameen Bank, got the Nobel Prize for Peace in 2006. (orig.)

76 FR 53020 - Nebraska Disaster #NE-00041

Science.gov (United States)

2011-08-24

...): Nebraska: Antelope, Cedar, Cuming, Dodge, Holt, Keya Paha, Lancaster, Otoe, Pierce, Rock, Saunders..., Charles Mix, Clay, Gregory, Union, Yankton. The Interest Rates are: Percent For Physical Damage...

75 FR 22873 - Nebraska Disaster # NE-00035

Science.gov (United States)

2010-04-30

..., Madison, Nance, Nemaha, Nuckolls, Otoe, Pawnee, Pierce, Platte, Polk, Richardson, Saline, Seward, Stanton... of Federal Domestic Assistance Numbers 59002 and 59008) James E. Rivera, Associate Administrator for...

Potential of biocorrosion in Danish district heatings sytems

Energy Technology Data Exchange (ETDEWEB)

Kjellerup, B.V.; Olesen, B.H.; Froelund, B. [Danish Technological Institute, Dep. of Environment Teknologiparken, Arhus (Denmark); Nielsen, P.H. [Aalborg University, Department of Life Sciences, Aalborg (Denmark)

2004-07-01

Danish district heating (DH) systems utilise water with unique characteristics that include low conductivity, high pH, nutrient poor and anaerobic (oxygen free) conditions in order to reduce corrosion rates. This survey was carried out in order to investigate the potential for biofilm formation and biocorrosion in these systems. Determination of total bacterial numbers in water samples were performed in 29 DH systems and showed a range of 10{sup 2}-10{sup 5} cells . ml{sup -1}. The potential for biofilm growth was further examined in corrosion monitoring units located at 6 DH locations. Total bacterial numbers in biofilm on mild steel were found in the range of 10{sup 4}-10{sup 6} cells . cm{sup -2}. The mild steel coupons were examined for general corrosion rates based on weight loss together with an investigation of pitting corrosion. The general corrosion rates were up to 12 {mu}m . year{sup -1}, while the pitting analysis showed pit depths up to 90 {mu}m for half a year of exposure. Presence of sulphate reducing bacteria (SRB) was found in all systems tested with corrosion monitoring units, whereas sulphide was found to different extents in the biofilms on all mild steel coupons. It was shown that DH systems with the highest number of bacteria in the biofilm generally had the most pronounced corrosion. The results show that despite the nutrient poor environment in the DH systems the potential for biofilm formation and biocorrosion was present. (Abstract Copyright [2004], Wiley Periodicals, Inc.)

Proceedings of the advanced coal-fired power systems `95 review meeting, Volume II

Energy Technology Data Exchange (ETDEWEB)

McDaniel, H.M.; Mollot, D.J.; Venkataraman, V.K.

1995-06-01

This report contains papers which were presented at the advanced coal-fired power sytems review meeting. This is volume II. Topics include: hot gas filter issues, hazardous air pollutants, sorbent development, and separation technologies. Individual papers were processed separately for the United States Department of Energy databases.

The growing need for nuclear energy in Switzerland

International Nuclear Information System (INIS)

Krafft, P.

1975-01-01

The structure of the Swiss Electrical Industry and the activities of the government in relation to energy are described. Production and consumption of electric power and the introduction of nuclear power into the sytem are discussed. Some guidelines are suggested for future development of the industry. (U.K.)

Genetic and bibliographic information: EYA1 [GenLibi

Lifescience Database Archive (English)

Full Text Available EYA1 eyes absent homolog 1 (Drosophila) human Branchio-Otic Syndrome; Branchio-Oto-...90) Congenital, Hereditary, and Neonatal Diseases and Abnormalities (C16) > Genetic Diseases, Inborn (C16.32

21 CFR 870.3600 - External pacemaker pulse generator.

Science.gov (United States)

2010-04-01

... 21 Food and Drugs 8 2010-04-01 2010-04-01 false External pacemaker pulse generator. 870.3600... pacemaker pulse generator. (a) Identification. An external pacemaker pulse generator is a device that has a... intrinsic pacing sytem until a permanent pacemaker can be implanted, or to control irregular heartbeats in...

Actividad reproductiva en tres especies simpátricas del género Liolaemus (Reptilia: Sauria: Tropiduridae Actividad reproductiva en tres especies simpátricas del género Liolaemus (Reptilia: Sauria: Tropiduridae

Directory of Open Access Journals (Sweden)

Ramírez Pinilla Martha Patricia

1992-09-01

Full Text Available Sympatric species Liolaemus bibroni (oviparous, Liolaemus elongatus and Liolaemus ruibali (viviparous have partial fall reproductive activity for males and females. Males are reproductively active between fall and spring, females are vitellogenic especially during this season, they are gravid in spring and the oviposition/parturition occur at the end of spring and early summer. Reproductive cycles of males and females have not a long rest phase, and apparently are continuous. The incidence of  environmental and endogenous factors over the partial fall reproductive pattern in Liolaemus species is discussed. Machos y hembras de las especies simpátricas Liolaemus bibroni (ovípara, Liolaemus elongatus y Liolaemus ruibali (vivíparas tienen actividad reproductiva parcial de otoño. Los machos son reproductivos entre otoño y primavera, período en el que las hembras son vitelogénicas; las hembras están grávidas en primavera y el parto/oviposición sucede al final de esta estación y verano temprano. Los ciclos reproductivos de machos y hembras no tienen un período de receso prolongado, y tienden a ser continuos. Se discute la incidencia de factores ambientales y endógenos en el patrón reproductivo parcial de otoño en especies de Liolaemus.

Värske kõrvaga kuuldud uuest Eesti muusikast / Elo Masing

Index Scriptorium Estoniae

Masing, Elo

2011-01-01

Eksperimentaalset Eesti muusikat tutvustava heliplaadi "Estonian Music Now 2011 - Exploratory Music From Estonia" esitluskontserdist 31. oktoobril Londonis Cafe OTOs, kus esinesid duo Taavi Kerikmäe - Mart Soo, Taavo Remmel ning Free Tallinn Trio

Coexisting first and bilateral second branchial fistulas in a child with nonfamilial branchio-otic syndrome.

Science.gov (United States)

Lapeña, Jose F; Jimena, Genilou Liv M

2013-07-01

We describe what we believe is only the third reported case of coexisting first and bilateral second branchial fistulas associated with nonfamilial branchio-otic syndrome. The patient was a 6-year-old girl who presented with bilaterally draining anterior neck puncta, a preauricular sinus, and moderately severe bilateral hearing loss. She had no family history of branchial anomalies. Compared with branchial cysts and sinuses, branchial fistulas are rare. Even more rare are bilateral second branchial fistulas coexisting with first branchial anomalies, as only 10 cases have been previously reported in the English-language literature. Of these 10 cases, 5 were associated with either branchio-otic syndrome or branchio-oto-renal syndrome; 2 patients had familial branchio-otic syndrome, 2 had nonfamilial branchio-otic syndrome, and 1 had nonfamilial branchio-oto-renal syndrome.

Effect of Nitrogen Inhibitors on Nitrous Oxide Emissions and Pasture Growth After an Autumn Application in Volcanic Soil Efecto de Inhibidores de Nitrógeno en las Emisiones de Óxido Nitroso y Crecimiento de la Pradera después de la Aplicación Otoñal en un Suelo Volcánico

Directory of Open Access Journals (Sweden)

Erika Vistoso

2012-03-01

Full Text Available A range of technologies is available to reduce greenhouse gas emissions from agricultural systems. Among these, applying N transformation inhibitors is promising in reducing nitrous oxide (N2O emissions in both arable and pastoral soils. A randomized complete block design with six replicates was used to quantify the effect of urease (UI and nitrification (NI inhibitors on N2O emissions and pasture production from permanent pasture in an Andisol after autumn-applied urea. The N2O emissions were measured periodically for 8 wk with PVC stationary chambers. Mineral N, DM yield, N concentration, and N uptake were analyzed. Our results show that adding fertilizer (40 kg N ha-1 significantly increased N2O emissions by 281% over the control treatment (P Una gama de tecnologías están disponibles para reducir las emisiones de gases de efecto invernadero desde sistemas agrícolas. Entre éstas, la aplicación de inhibidores de transformación del N es considerada prometedora para reducir emisiones de oxido nitroso (N2O en suelos de cultivo y praderas. Un diseño de bloques completos al azar con seis repeticiones se utilizó para cuantificar el efecto de inhibidores de ureasa (UI y nitrificación (NI sobre emisiones de N2O y producción de pradera permanente sobre un Andisol después de la aplicación otoñal de urea. Las emisiones de N2O se midieron periódicamente durante 8 semanas en cámara estacionaria de PVC. Se analizaron N mineral, rendimiento de MS, concentración de N, y absorción de N. Los resultados muestran que la aplicación de fertilizante (40 kg N ha-1 aumentó significativamente las emisiones de N2O en 281% sobre el tratamiento control (P < 0,05 y generó 10-29% de reducción de emisiones. Ambos inhibidores redujeron la producción de N-nitrato en el Andisol serie Osorno por detener la hidrólisis de urea o el proceso de nitrificación. Se midieron aumentos en producción (8-13%, concentración N (7-9% y absorción N (46-56% con la adici

Future of Software Engineering Standards

Science.gov (United States)

Poon, Peter T.

1997-01-01

In the new millennium, software engineering standards are expected to continue to influence the process of producing software-intensive systems which are cost-effetive and of high quality. These sytems may range from ground and flight systems used for planetary exploration to educational support systems used in schools as well as consumer-oriented systems.

Aboveground Injection Sytem Construction and Mecahnical Integrity Test Plan

Energy Technology Data Exchange (ETDEWEB)

Li, Jun [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

2017-10-01

An In-Situ Bioremediation (ISB) Pilot Test Treatability Study is planned at Sandia National Laboratories, New Mexico (SNL/NM) Technical Area-V (TA-V) Groundwater Area of Concern. The Treatability Study is designed to gravity inject an electron-donor substrate and bioaugmentation bacteria into groundwater using an injection well. The constituents of concern (COCs) are nitrate and trichloroethene (TCE). The Pilot Test Treatability Study will evaluate the effectiveness of bioremediation and COC treatment over a prescribed period of time. Results of the pilot test will provide data that will be used to evaluate the cost and effectiveness of a fullscale system.

Incomplete water securitization in coupled hydro-human production sytems

Science.gov (United States)

van den Boom, B.; Pande, S.

2012-04-01

Due to the dynamics, the externalities and the contingencies involved in managing local water resource for production, the water allocation at basin-level is a subtle balance between laws of nature (gravity; flux) and laws of economics (price; productivity). We study this balance by looking at inter-temporal basin-level water resource allocations in which subbasins enjoy a certain degree of autonomy. Each subbasin is represented as an economic agent i, following a gravity ordering with i=1 representing the most upstream area and i=I the downstream boundary. The water allocation is modeled as a decentralized equilibrium in a coupled conceptual hydro-human production system. Agents i=1,2,...,I in the basin produce a composite good according to a technology that requires water as a main input and that is specific to the subbasin. Agent i manages her use Xi and her storage Si, conceptualizing surface and subsurface water, of water with the purpose of maximizing the utility derived from consumption Ci of the composite good, where Ci is a scalar and Xi and Si are vectors which are composed of one element for each time period and for each contingency. A natural way to consume the good would be to absorb the own production. Yet, the agent may have two more option, namely, she might get a social transfer from other agents or she could use an income from trading water securities with her contiguous neighbors. To study these options, we compare water allocations (Ci, Xi, Si) all i=1,2,...,I for three different settings. We look at allocations without water securitization (water autarky equilibrium EA) first. Next, we describe the imaginary case of full securitization (contingent water markets equilibrium ECM) and, in between, we study limited securitization (incomplete water security equilibrium EWS). We show that allocations under contingent water markets ECM are efficient in the sense that, for the prevailing production technologies, no other allocation exists that is at least good as for all the agents and that makes at least one agent better off . On the other hand, allocations under autarky EA will tend to be inefficient, meaning that other allocations may exist that would be preferred by some agents without compromising the interest of the others. By the same token, the in-between case with water securities will generally also fail to achieve full efficiency. Nonetheless, some securitization will always be at least as good as none while it will be better under conditions of water scarcity that are common in dryland area river basins. Hence water allocations under EWS will generally lead to an improvement over those under EA. It should be noted that the fully efficient equilibrium is only imaginary because it requires a separate water security for every agent, for every period and for every contingency that nature might hold. Clearly, because of dimensionality, this amount of securities will be beyond reach. Therefore, water securitization with a limited number of securities remains as the only practical option to deal with the inefficiency of water allocations under autarky. The economic theory of incomplete markets provides a useful framework to study limited water securitization. We apply the theory in the context of our water allocation framework using an institutional setting where downstream agent i may secure water from upstream agent (i-1) through an agreement that pays for (i-1)'s water savings. In this manner we identify (I-1) water securities, one for each pair of contiguous agents. Each security addresses, at the local level, the interaction of flows over time and over contingencies that might occur. Under scarcity conditions prevalent in many river basins, agents will show an interest to supply and demand such securities. In particular, downstream area can often make more productive use of water. Accordingly, in the water autarky equilibrium EA, they would be willing to pay for more water, while, at the same time, upstream users would be prepared to make water savings to the extent that the payment for the security will exceed the value of foregone production losses. Thus, although inevitably incomplete, water securitization could play a significant role in increasing the efficiency of the allocation of water resources at the basin-level. Evidence from river basins in various parts of the world suggests that gains could be sizeable. This paper dwells upon the advantages and challenges of a transdisciplinary approach that blends the laws of nature with those of economics. It aims to identify efficiency gains from water securitization while addressing the institutional difficulties of implementation due to inherent incompleteness in markets that allow trade in such securities.

The PXR/CAR nuclear receptor sytem and antimalaria chemotherapy

OpenAIRE

Piedade, Rita

2010-01-01

Malaria is one of the oldest diseases know to mankind, still having devastating consequences; killing 1 million people/year. The efforts to control this disease have been focused on the control of its transmission and, most importantly, its clinical management by effective chemotherapy. Concerning the latter, several antimalarials have been developed in the last decades. They can be subdivided into four structural classes: aminoquinolines, antifolates, artemisinin derived compounds and naphto...

FRECUENCIA DE VARROOSIS Y NOSEMOSIS EN COLONIAS DE ABEJAS MELÍFERAS (Apis mellifera EN EL ESTADO DE ZACATECAS, MÉXICO

Directory of Open Access Journals (Sweden)

Carlos A. Medina-Flores

2014-01-01

Full Text Available El objetivo del trabajo fue determinar la frecuencia y grado de infestación de varroosis ( Var ro a destructor e infección de nosemosis ( Nosema spp. en colonias de abejas ( Apis mellifera del estado de Zacatecas, durante el otoño y la primavera. Se inspeccionaron 299 colonias comer - ciales de abejas distribuidas en 15 municipios pertenecientes a tres zonas ecológicas: 1 zona semiseca templada, 2 zona semiseca semicálida y 3 zona subhúmeda templada. La prevalencia general fue 2.3 % para la nosemosis y 88 % para la varroosis. El nivel de infestación de varroa varió significativa - mente ( P = 0.05 entre el otoño y la primavera, y entre zonas sólo varió en la primavera ( P < 0.001. Du - rante el otoño, 44 % de las colonias presentaron niveles de infestación ≥ 5 %, mientras que en la prima - vera sólo 28 % superó dicho nivel. Nosema spp. se observó solamente en 4.7 % de la población analizada en primavera; la mayoría de los casos (86 % se detectó en la zona semiseca semicálida. Los resultados indican que la varroosis es la parasitosis más común de las abejas melíferas adultas en Zacatecas. La nosemosis no representa un problema serio para la apicultura de la entidad, debido a la baja frecuencia.

Protein: FBA3 [TP Atlas

Lifescience Database Archive (English)

Full Text Available FBA3 Ubiquitination CBLB RNF56 CBLB E3 ubiquitin-protein ligase CBL-B Casitas B-lineage lymphoma pr...oto-oncogene b, RING finger protein 56, SH3-binding protein CBL-B, Signal transduction prote

A longitudinal evaluation of hearing and ventilation tube insertion in patients with primary ciliary dyskinesia

DEFF Research Database (Denmark)

Andersen, Tobias Nicolai; Alanin, Mikkel Christian; von Buchwald, Christian

2016-01-01

INTRODUCTION: Primary ciliary dyskinesia (PCD) is an autosomal recessive genetic disease, which primarily manifests with oto-sino-pulmonary symptoms. Otitis media with effusion (OME) is common from early childhood. The existing literature on OME management in PCD is conflicting. The goals of the ...

Duty hour restrictions and surgical complications for head and neck key indicator procedures.

Science.gov (United States)

Smith, Aaron; Jain, Nikhita; Wan, Jim; Wang, Lei; Sebelik, Merry

2017-08-01

Graduate medical education has traditionally required long work hours, allowing trainees little time for adequate rest. Based on concerns over performance deterioration with sleep deprivation and its effect on patient outcomes, duty hour restrictions have been mandated. We sought to characterize complications from otolaryngology key indicator procedures performed before and after duty hour reform. Retrospective cross-sectional analysis of National Inpatient Sample (NIS). The NIS was queried for procedure codes associated with head and neck key indicator groupings for the years 2000-2002 (45,363 procedures) and 2006-2008 (51,144 procedures). Hospitals were divided into three groups: nonteaching hospitals (NTH), teaching hospitals without otolaryngology programs (TH), and teaching hospitals with otolaryngology programs (TH-OTO). Surgical complication rates, length of stay, and mortality rates were analyzed using logistic and linear regression. The number of procedures increased (12.7%), with TH-OTO contributing more in postrestriction years (21% to 30%). Overall complication rates between the two periods revealed no difference, regardless of hospital setting. Subset analysis showed some variation within each complication within each grouping. Length of stay increased at TH-OTO (2.75 to 2.78 days) and decreased at NTH (2.28 to 2.24 days) and TH (2.39 to 2.36 days). Mortality did not increase among the three hospital types (NTH, P key indicator procedures. Moreover, concerns about reduced surgical case numbers appear unfounded, especially for otolaryngology programs. 2c Laryngoscope, 127:1797-1803, 2017. © 2016 The American Laryngological, Rhinological and Otological Society, Inc.

Carotis interna som pulserende udfyldning i pharynx

DEFF Research Database (Denmark)

Wærsted, Stian; Dethloff, Thomas Joachim

2016-01-01

-scan showed a tortuous ICA protruding into the lateral and posterior pharyngeal wall. This condition may need treatment in itself, and it can lead to co-morbidity and serious surgical complications in undiagnosed patients. Referral to an oto-rhino-laryngologist is highly recommended for diagnostics....

Case series

African Journals Online (AJOL)

abp

otospongiose colligés au service d'Oto-rhino-laryngologie de l'hôpital militaire Avicenne de Marrakech, entre Janvier 2009 et Décembre 2012. L'âge moyen des patients était de 38 ans avec une nette prédominance masculine (77%).

The Genomic Evolution of Prostate Cancer

Science.gov (United States)

2017-06-01

Fan X, Wang J, Antic T, VanderWeele DJ, Oto A. “Quantitative Multi- parametric MRI Features and PTEN Expression in Prostate Cancer”. American...of Clinical Research I have yet to complete • Principles of Clinical Pharmacology 11. OPPORTUNITIES FOR PROFESSIONAL DEVELOPMENT: I had the

Hereditary Hearing Loss.

Science.gov (United States)

Tran, LenhAnh P.; Grundfast, Kenneth M.

1997-01-01

This article discusses inheritance patterns in hearing loss, epidemiology, clues to genetic causes, locating genes that cause hereditary disorders, genes related to hearing loss disorders in individuals with Usher syndrome, Waardenburg syndrome, Treacher-Collins syndrome, Branchio-oto-renal and Pendred syndromes, and the significance of finding…

Case report

African Journals Online (AJOL)

abp

16 oct. 2015 ... PubMed | Google Scholar. 4. Prades, Eduardo, Isam Alobid, Llucia Alós, Jose Maria. Guilemany, Manuel Bernal-Sprekelsen, et Joaquim Mullol. Extranodal Lymphoma Originating from Mucosa-Associated. Lymphoid Tissue of the Nasopharynx. Acta Oto-Laryngologica. Décembre 2003; 123(9): 1098 1101.

Allicin protects against cisplatin-induced vestibular dysfunction by inhibiting the apoptotic pathway.

Science.gov (United States)

Wu, Xianmin; Cai, Jing; Li, Xiaofei; Li, He; Li, Jianfeng; Bai, Xiaohui; Liu, Wenwen; Han, Yuechen; Xu, Lei; Zhang, Daogong; Wang, Haibo; Fan, Zhaomin

2017-06-15

Cisplatin is an anticancer drug that causes the impairment of inner ear function as side effects, including hearing loss and balance dysfunction. The purpose of this study was to investigate the effects of allicin against cisplatin-induced vestibular dysfunction in mice and to make clear the mechanism underlying the protective effects of allicin on oto-vestibulotoxicity. Mice intraperitoneally injected with cisplatin exhibited vestibular dysfunction in swimming test, which agreed with impairment in vestibule. However, these impairments were significantly prevented by pre-treatment with allicin. Allicin markedly reduced cisplatin-activated expression of cleaved-caspase-3 in hair cells and vascular layer cells of utricule, saccule and ampulla, but also decreased AIF nuclear translocation of hair cells in utricule, saccule and ampulla. These results showed that allicin played an effective role in protecting vestibular dysfunction induced by cisplatin via inhibiting caspase-dependent and caspase-independent apoptotic pathways. Therefore, allicin may be useful in preventing oto-vestibulotoxicity mediated by cisplatin. Copyright © 2017. Published by Elsevier B.V.

DEVELOPMENT OF A VORTEX CONTAINMENT COMBUSTOR FOR COAL COMBUSTION SYTEMS

Science.gov (United States)

The report describes the development of a vortex containment combustor (VCC) for coal combustion systems, designed to solve major problems facing the conversion of oil- and gas-fired boilers to coal (e.g., derating, inorganic impurities in coal, and excessive formation of NOx and...

Center of mass movement estimation using an ambulatory measurement sytem

NARCIS (Netherlands)

Schepers, H. Martin; Veltink, Petrus H.

2007-01-01

Center of Mass (CoM) displacement, an important variable to characterize human walking, was estimated in this study using an ambulatory measurement system. The ambulatory system was compared to an optical reference system. Root-mean-square differences between the magnitudes of the CoM appeared to be

Resisting Reflexive Control: A Reassessment of Chinas Strategy and A2/AD

Science.gov (United States)

2015-04-01

most prominent advertising sites in the United States. Companies such as Coca - Cola and Prudential have advertised there for years.58 One name that...3. Picture of Xinhua News Agency advertising in Times Square, (Reprinted from Xinhuanet.com, http://news.xinhuanet.com/english2010/ph oto/2011-08

BRAIN. Broad Research in Artificial Intelligence and Neuroscience - CEREBRO. Investigación en sentido amplio sobre Inteligencia Artificial y Neurociencia - Resumen en español

OpenAIRE

Bogdan Patrut

2010-01-01

BRAIN. Broad Research in Artificial Intelligence and Neuroscience CEREBRO. Investigación en sentido amplio sobre Inteligencia Artificial y Neurociencia Investigación en sentido amplio sobre Inteligencia Artificial y Neurociencia Volumen 1, Número 4 Octubre 2010: Otoño 2010 www.brain.edusoft.ro Editor Jefe: Bogdan Patrut

Overview of risk analysis research on tanker groundings and collisions

DEFF Research Database (Denmark)

Pedersen, Preben Terndrup

1999-01-01

for evaluation of the oil outlfow performance of alternative tanker designs in the event of a collision or grounding. The present paper is an invited contribution oto the first meeting of the Committee on Evaluating Double Hull Alterntive Tanker Designs held at the National Academy of Sciences' Georgetown...

Mitigating Stress Waves by using Nanofoams and Nanohoneycombs

Science.gov (United States)

2015-02-13

Stress Waves Using Nanofoams and Nanohoneycombs Grant No.: W911NF-12-1-0011 Program Manager : Dr. David M. Stepp PI: Professor Yu Qiao...PPC temperature, Ts, does not have any detectable influence on their amorphous nature . 2.4.4 Morphology The silica nanofoams were also observed...which will be referred to as single-parameter foams, will be discussed in the following sections. (a) X-Depth Coordinate Sytem (b) 315 nm

Resumen en español

Directory of Open Access Journals (Sweden)

Bogdan Patrut

2010-09-01

Full Text Available Resumen en español
BRAIN. Broad Research in Artificial Intelligence and Neuroscience
CEREBRO. Investigación en sentido amplio sobre Inteligencia Artificial y Neurociencia
Volumen 1, Número 4
Octubre 2010: Otoño 2010
www.brain.edusoft.ro
Editor Jefe: Bogdan Patrut

L'otite moyenne chronique cholestéatomateuse de l'enfant: à propos ...

African Journals Online (AJOL)

Le but de notre travail est d'analyser à travers une revue bibliographique les particularités des otites moyennes chroniques cholestèatomateuses chez 30 enfants pris en charge dans le service d'oto-rhino-laryngologie de l'hôpital militaire Avicenne de Marrakech. Le traitement est exclusivement chirurgical, actuellement, ...

The System of Higher Education in CSFR

OpenAIRE

Kopp, Botho von

1991-01-01

By dividing his article in two chapters ("1. From the founding of Charles University to the modern higher education system" and "2. The higher education system 1948-1989") the author gives an historical overview over the sytem of higher education in CSFR, whereas he covers the following aspects in the second chapter: "Basic data on higher education", "Organization and structure of the course of studies" and "Developments after 1989 and future trends". (DIPF/ ssch.)

VARIACIÓN ESTACIONAL DE LA FOTOSÍNTESIS EN VARIOS CULTIVARES DE AGUACATE

Directory of Open Access Journals (Sweden)

Medina-Torres R

2011-07-01

Full Text Available Se estudió la variación estacional de la fotosíntesis y parámetros fisiológicos relacionados con ésta en los cultivares de aguacate Colín V-101 y Rincón (ambos de bajo porte y Hass en el clima Semicálido subhúmedo del Valle de Matatipac, Nayarit. Se midió la fotosíntesis en seis fechas de muestreo y en cada una de ellas fueron evaluadas cinco hojas maduras en cada uno de cinco árboles por cultivar. La primera medición se hizo al fin de verano (21 Sep. 2002, dos lecturas en otoño (20 Oct. y 20 Nov. 2002, dos en invierno (22 Ene. y 23 Feb. 2003 y una al inicio de la primavera (30 Mar. 2003. La dispersión estacional de la tasa de fotosíntesis neta (A de los tres cultivares de aguacate siguió el mismo patrón de distribución a través de las estaciones del año. La tasa de A al fin de verano fue baja (18.45 mmol CO2 m-2 s-1, se elevó ligeramente (20.22 mmol CO2 m-2 s-1 al inicio de otoño, y alcanzó el promedio máximo en pleno otoño con 30.05 mmol CO2 m-2 s-1 que coincidió con el crecimiento de fruto. A se estabilizó (29.84 mmol CO2 m-2 s-1 durante el invierno y descendió significativamente al inicio de primavera (17.61 mmol CO2 m-2 s-1. La tasa de A resultó afectada por las condiciones climatológicas de cada estación y el estado fenológico de los cultivares de aguacate.

Especies de Ulva del Golfo San Jorge, Patagonia Argentina: variaciones bioquímicas estacionales - espaciales y su relación con la producción de metabolitos bioactivos

Directory of Open Access Journals (Sweden)

Analía Verónica Uhrich

Full Text Available Objetivos: Investigar especies de Ulva del Golfo San Jorge, Patagonia Argentina, integrando aspectos bioquímicos, actividad biológica y variaciones estacionales/habitacionales que permitan determinar su potencial aplicación en Salud. Métodos: Las algas se colectaron estacionalmente en playas con y sin contaminación antrópica; se secaron, molieron y extrajeron con etanol. Los extractos se fraccionaron mediante solventes de distinta polaridad. Cada fracción fue caracterizada mediante reacciones químicas cualitativas y cromatografía. Las fracciones ricas en flavonoides se analizaron por HPLC-DAD y los lípidos, por TLC. La actividad biológica se ensayó mediante el test de citotoxicidad de Artemia salina, inhibición de la elongación radicular, inhibición de la xantino oxidasa, actividad antioxidante y antibacteriana. Resultados: Se identificaron Ulva rigida y Ulva lactuca. Ambas evidenciaron flavonoides, taninos, quinonas, lípidos, carbohidratos, esteroides. Los flavonoides resultaron mayoritarios en U. rigida (otoño e invierno y en U. lactuca (primavera e invierno, destacándose kayaflavona. Se detectaron alcaloides en Ulva rigida (verano. Los lípidos fueron mayoritarios en verano; U. lactuca en invierno mostró monogalactosildiacilglicérido y en otoño, digalactosilacilglicérido y fosfatidilcolina. La actividad inhibitoria de la elongación radicular, que presume actividad antitumoral, fue importante y dosis dependiente, destacándose U. rigida de otoño y primavera (DE50= 480 y 520 µg/ml, respectivamente. Las demás bioactividades resultaron escasas o negativas. Conclusiones: Las variaciones metabólicas observadas muestran la importancia de considerar las condiciones espacio - temporales al planificar una colecta de ejemplares para su estudio y/o aplicación. Este primer análisis integral de especies de Ulva de la Patagonia Argentina, evidencia su potencialidad como antitumoral.

Rendimiento y calidad de forraje del pasto ovillo (Dactylis glomerata L. al variar la frecuencia e intensidad de pastoreo

Directory of Open Access Journals (Sweden)

Jorge Armando Villareal González

2014-01-01

Full Text Available El objetivo fue determinar el rendimiento y calidad del pasto ovillo ( Dactylis glomerata L., al variar la frecuencia e intensidad de pastoreo. Se evaluaron tres frecuencias (2, 3 y 4 semanas en primavera y verano y 4, 5 y 6 semanas durante otoño y dos intensidades de pastoreo (severa: 3 a 5 cm y ligera: 6 a 8 cm de altura de forr aje residual. Se evaluó el rendimiento de forraje, tasa de acumulación neta de forraje (TANF, composición morfoló gica y calidad del forraje. El mayor rendimiento acumulado y TANF se presentaron con pastoreo severo cada 4 y 6 sem anas y en ambas intensidades cada 3 y 5 semanas. El mayor rendimiento estacional (7,844; 7,699; 7114 kg MS ha -1 se presentó en verano en las mismas frecuencias e intensidades de pastoreo, respectivamente ( P <0.05. Durante primavera no se observaron dife rencias en rendimiento y TANF entre frecuencias de pastoreo. En otoño la frecuencia de 5 semanas superó a la de 4 ( P <0.05, pero no diferente a la de 6 semanas. En todas las estaciones del año la intensidad de pastoreo severo superó a la ligera, siendo diferentes en primavera y verano ( P <0.05. En general, el contenido de proteína total y digestibilidad in vitro de la materia seca tendieron a disminuir conforme aumentó el intervalo de pastoreo, siendo en promedio de 20 y 65 %, respectivamente. Se concluye que para obtener el mayor re ndimiento y calidad de forraje, los pastoreos deben realizarse cada 4 semanas durante primavera-verano y cada 5 semanas en otoño, a una intensidad severa.

The Risk of HIV infection in Surgical Practice: The Surgeon, HIV ...

African Journals Online (AJOL)

... HIV/AIDS — by the Oto-Rhino-Laryngological Society of Nigeria. Ten years ago in Nigeria, HIV/AIDS was so low in the priority order that it would not command such attention with such a major professional body. It may have become clear to Nigerians that the problem cannot just be wished away; neither will time take care ...

Spondylo-megaepiphyseal-metaphyseal dysplasia: an unusual bone dysplasia

International Nuclear Information System (INIS)

Agarwal, Prachi Pragya; Srinivasan, Ashok; Sharma, Raju; Gupta, Arun Kumar; Kabra, Madhulika

2003-01-01

A rare case of spondylo-megaepiphyseal-metaphyseal dysplasia is reported in a 10-year-old boy. The features were metaphyseal dysplasia, markedly defective ossification of vertebral body centres and enlarged epiphyses. Although it shares some features with spondylo-metaphyseal dysplasia, oto-spondylo-megaepiphyseal dysplasia and cleidocranial dysplasia, the presence of several unusual radiological findings sets it apart. (orig.)

Traditional marriage (igba Nkwu) in Ichida Town, Anambra State

African Journals Online (AJOL)

*

2012-07-01

Jul 1, 2012 ... The choice of metal media is based on its rate of permanency. ... above myths that the work of Oto'Ogbe was to protect her children from danger. ... Video and audio tapes and writing materials were used to record and ... individuals (man and woman) to live together and cooperate in an orderly social life.

Testimonio de un despojo

Directory of Open Access Journals (Sweden)

SYLVIA DE CASTRO

2003-01-01

Full Text Available Una lectura psicoanalítica de El Otoño del Patriarca, de Gabriel García ;Márquez, en cuyas páginas asistimos a los desbordes de un régimen dictatorial, nos permite situar un objeto cuyo poder de fascinación resulta suficiente para movilizar el curso de lo

Case series

African Journals Online (AJOL)

abp

10 déc. 2015 ... Le diagnostic de ces tumeurs est difficile, nécessitant une approche multidisciplinaire, à savoir oto-rhino- laryngologique, radiologique et anatomopathologique. Notre étude rétrospective concerne 32 cas de tumeurs malignes naso-sinusiennes, colligées au service d'ORL de l'hôpital militaire Avicenne de ...

Microencapsulated Phase-Change Materials For Storage Of Heat

Science.gov (United States)

Colvin, David P.

1989-01-01

Report describes research on engineering issues related to storage and transport of heat in slurries containing phase-change materials in microscopic capsules. Specific goal of project to develop lightweight, compact, heat-management systems used safely in inhabited areas of spacecraft. Further development of obvious potential of technology expected to lead to commercialization and use in aircraft, electronic equipment, machinery, industrial processes, and other sytems in which requirements for management of heat compete with severe restrictions on weight or volume.

Centrality based Document Ranking

Science.gov (United States)

2014-11-01

support task. As it turned out, the results were very poor, which suggests that using a general purpose IR sytem in this way is not a good idea... Management on the Semantic Web, 2005. 15. P. Mika, T. Tudorache, A. Bernstein, C. Welty, C. A. Knoblock, D. Vrandecic, P. T. Groth, N. F. Noy, K. Janowicz...question- focused sentence retrieval. In HLT ’05: Proceedings of the conference on Hu- man Language Technology and Empirical Methods in Natural

Earth Resources: A continuing bibliography with indexes, issue 33

Science.gov (United States)

1982-01-01

This bibliography list 436 reports, articles, and other documents introduced into the NASA Scientific and Technical Information System. Emphasis is placed on the use of remote sensing and geophysical instrumentation in spacecraft and aircraft to survey and inventory natural resources and urban areas. Subject matter is grouped according to agriculture and forestry, environmental changes and cultural resources, geodesy and cartography, geology and mineral resources, hydrology and water management, data processing and distribution sytems, instrumentation and sensors, and economic analysis.

Sytemic inflammation in cachexia - is tumour cytokine expression profile the culprit?

Directory of Open Access Journals (Sweden)

Emidio Marques De Matos-Neto

2015-12-01

Full Text Available Cachexia affects about 80 percent of gastrointestinal cancer patients. This multifactorial syndrome resulting in involuntary and continuous weight loss is accompanied by systemic inflammation and immune cell infiltration in various tissues. Understanding the interactions between tumor, immune cells and peripheral tissues could help attenuating systemic inflammation. Therefore, we investigated inflammation in the subcutaneous adipose tissue and in the tumor, in weight stable and cachectic cancer patients with same diagnosis, in order to establish correlations between tumor microenvironment and secretory pattern with adipose tissue and systemic inflammation. Infiltrating monocyte phenotypes of subcutaneous and tumor vascular-stromal fraction were identified by flow cytometry. Gene and protein expression of inflammatory and chemotactic factors was measured with qRT-PCR and Multiplex Magpix® system, respectively. Subcutaneous vascular-stromal fraction exhibited no differences in regard to macrophage subtypes, while in the tumor, the percentage of M2 macrophages was decreased in the cachectic patients, in comparison to weight-stable counterparts. CCL3, CCL4 and IL-1β expression was higher in the adipose tissue and tumor tissue in cachectic group. In both tissues chemotactic factors were positively correlated with IL-1β. Furthermore, positive correlations were found for the content of chemoattractants and cytokines in the tumor and adipose tissue. The results strongly suggest that the crosstalk between the tumor and peripheral tissues is more pronounced in cachectic patients, compared to weight-stable patients with the same tumor diagnosis.

TU-AB-207-02: Testing of Body and Breast Tomosynthesis Sytems

Energy Technology Data Exchange (ETDEWEB)

Jones, A. [UT MD Anderson Cancer Center (United States)

2015-06-15

Digital Tomosynthesis (DT) is becoming increasingly common in breast imaging and many other applications. DT is a form of computed tomography in which a limited set of projection images are acquired over a small angular range and reconstructed into a tomographic data set. The angular range and number of projections is determined both by the imaging task and equipment manufacturer. For example, in breast imaging between 9 and 25 projections are acquired over a range of 15° to 60°. It is equally valid to treat DT as the digital analog of classical tomography - for example, linear tomography. In fact, the name “tomosynthesis” is an acronym for “synthetic tomography”. DT shares many common features with classical tomography, including the radiographic appearance, dose, and image quality considerations. As such, both the science and practical physics of DT systems is a hybrid between CT and classical tomographic methods. This lecture will consist of three presentations that will provide a complete overview of DT, including a review of the fundamentals of DT, a discussion of testing methods for DT systems, and a description of the clinical applications of DT. While digital breast tomosynthesis will be emphasized, analogies will be drawn to body imaging to illustrate and compare tomosynthesis methods. Learning Objectives: To understand the fundamental principles behind tomosynthesis, including the determinants of image quality and dose. To learn how to test the performance of tomosynthesis imaging systems. To appreciate the uses of tomosynthesis in the clinic and the future applications of tomosynthesis.

TU-AB-207-02: Testing of Body and Breast Tomosynthesis Sytems

International Nuclear Information System (INIS)

Jones, A.

2015-01-01

Digital Tomosynthesis (DT) is becoming increasingly common in breast imaging and many other applications. DT is a form of computed tomography in which a limited set of projection images are acquired over a small angular range and reconstructed into a tomographic data set. The angular range and number of projections is determined both by the imaging task and equipment manufacturer. For example, in breast imaging between 9 and 25 projections are acquired over a range of 15° to 60°. It is equally valid to treat DT as the digital analog of classical tomography - for example, linear tomography. In fact, the name “tomosynthesis” is an acronym for “synthetic tomography”. DT shares many common features with classical tomography, including the radiographic appearance, dose, and image quality considerations. As such, both the science and practical physics of DT systems is a hybrid between CT and classical tomographic methods. This lecture will consist of three presentations that will provide a complete overview of DT, including a review of the fundamentals of DT, a discussion of testing methods for DT systems, and a description of the clinical applications of DT. While digital breast tomosynthesis will be emphasized, analogies will be drawn to body imaging to illustrate and compare tomosynthesis methods. Learning Objectives: To understand the fundamental principles behind tomosynthesis, including the determinants of image quality and dose. To learn how to test the performance of tomosynthesis imaging systems. To appreciate the uses of tomosynthesis in the clinic and the future applications of tomosynthesis

Exhibition of Stochastic Resonance in Vestibular Perception

Science.gov (United States)

Galvan-Garza, R. C.; Clark, T. K.; Merfeld, D. M.; Bloomberg, J. J.; Oman, C. M.; Mulavara, A. P.

2016-01-01

Astronauts experience sensorimotor changes during spaceflight, particularly during G-transitions. Post flight sensorimotor changes include spatial disorientation, along with postural and gait instability that may degrade operational capabilities of the astronauts and endanger the crew. A sensorimotor countermeasure that mitigates these effects would improve crewmember safety and decrease risk. The goal of this research is to investigate the potential use of stochastic vestibular stimulation (SVS) as a technology to improve sensorimotor function. We hypothesize that low levels of SVS will improve sensorimotor perception through the phenomenon of stochastic resonance (SR), when the response of a nonlinear system to a weak input signal is enhanced by the application of a particular nonzero level of noise. This study aims to advance the development of SVS as a potential countermeasure by 1) demonstrating the exhibition of stochastic resonance in vestibular perception, a vital component of sensorimotor function, 2) investigating the repeatability of SR exhibition, and 3) determining the relative contribution of the semicircular canals (SCC) and otolith (OTO) organs to vestibular perceptual SR. A constant current stimulator was used to deliver bilateral bipolar SVS via electrodes placed on each of the mastoid processes, as previously done. Vestibular perceptual motion recognition thresholds were measured using a 6-degree of freedom MOOG platform and a 150 trial 3-down/1-up staircase procedure. In the first test session, we measured vestibular perceptual thresholds in upright roll-tilt at 0.2 Hz (SCC+OTO) with SVS ranging from 0-700 µA. In a second test session a week later, we re-measured roll-tilt thresholds with 0, optimal (from test session 1), and 1500 µA SVS levels. A subset of these subjects, plus naive subjects, participated in two additional test sessions in which we measured thresholds in supine roll-rotation at 0.2 Hz (SCC) and upright y-translation at 1 Hz

Lotus tenuis Seedling Establishment and Biomass Production in Flooding Pampa Grasslands (Buenos Aires , Argentina Establecimiento de Plántulas y Producción de Biomasa de Lotus tenuis en Pastizales de la Pampa Deprimida (Buenos Aires, Argentina

Directory of Open Access Journals (Sweden)

Osvaldo R Vignolio

2011-03-01

Full Text Available Biomass and plant density of Lotus tenuis Waldst. & Kit. ex Willd. have been reported in decreasing in grasslands and pastures. Our objective was to determine if L. tenuis biomass and plant density can be increased in grassland through seed addition. Two separated experiments under cattle grazing exclusion were conducted in three paddocks of a Flooding Pampa grassland. The first experiment was from autumn 2004 to autumn 2006 and the second from autumn 2005 to autumn 2007. Different L. tenuis seed additions (0, 57, 229, 917 and 1833 seeds m-² were broadcast into experimental plots. In the second experiment, besides seed additions there was a reseeding of approximately 900 seed m-² from seed rain produced by plants of grassland. Seed density explained the 81% and 19% of the variation in seedling density and L. tenuis biomass, respectively. Seedling emergence occurred mainly between autumn and early spring, while seedling mortality was mainly between late spring and early summer. Lotus tenuis adult plant density and biomass production increased with seed additions. Total biomass production in the plant community varied between 589.94 ± 26.89 and 1042.44 ± 54.39 g m-² yr-1 and the differences were principally attributed to precipitations. Lotus tenuis biomass contribution was of approximately 10%. The results suggest that L. tenuis seedling and plant establishment and biomass production can be increased through seed addition and/or seed rain through grazing exclusion during reproductive period.En pastizales y pasturas ha sido documentada la reducción de la densidad de plantas y de la biomasa de Lotus tenuis Waldst. & Kit. ex Willd. Nuestro objetivo fue determinar si su densidad de plantas y su producción de biomasa pueden ser incrementadas en un pastizal mediante la adición de semillas. Dos experimentos sin pastoreo fueron realizados en tres potreros de un pastizal de la Pampa Deprimida. El primer experimento fue realizado entre otoño 2004

International Assessment of Unmanned Ground Vehicles

Science.gov (United States)

2008-02-01

and its funding has since been approved in 4-year blocks. 16 EDA Web Page. Background. Available: http://www.eda.europa.eu/genericitem.aspx?area...Establishment for Applied Science)], Belgium (Royal Military Acad- emy), Italy (Oto Melara of Finmeccanica), and Spain (Sener Ingenieria y Sistemas SA...ability as an international standard. 30 NATO RTO Web Site: http://www.rta.nato.int/ (Accessed January

Dark matter search with CaF sub 2 scintillators in Osaka

CERN Document Server

Ogawa, I; Hazama, R; Ajimura, S; Matsuoka, K; Suzuki, N; Nitta, T; Miyawaki, H; Shiomi, S; Tanaka, Y; Ejiri, H; Kudomi, N; Kume, K; Ohsumi, H; Fushimi, K

2000-01-01

A detector system which consists of CaF sub 2 scintillators surrounded by active and passive shields, is developed to search for spin coupled dark matter. The whole system is in operation at the underground laboratory located in Nara (Oto Cosmo Observatory) which has effectively 1.2 km water equivalent shield. In this article our current status of the investigation is described.

Graphic Enhancement of the Aircraft Penetration Model for Use as an Analytic Tool.

Science.gov (United States)

1983-03-01

internal web of subroutines linked by a ’nervous sytem’ of labelled common blocks." [Ref. 23] Once the user prescribes the parameters for a particular...10 MI4 - ww (A~’ - 0 z . l J- 6,- L a-. 1- ’..u.. - V):LA r w iJ..W 0 d4- Z 9- wtv 4)Lj.J.44 I---M. .. j jU- Wix it 9I’-wku SAXw. Q.3 t- Vd I)4.J13v)v

A Survey on Efficient Collaboration of Design and Simulation in Product Development

OpenAIRE

Kreimeyer, M.;Deubzer, F.;Herfeld, U..;Lindemann, U.

2017-01-01

Efficient collaboration is a popular topic in all kinds of industry with products evolving into evermore complex sytems and with taylorism in product development increasing. With the goal of satisfying the customer’s functional desires for the product, the cooperation of embodiment design, simulation and testing departments in a company plays an essential role. The results of a survey to explore problems and chances of the former two are layed out in the following. For the survey, about 50 qu...

Guidelines of the French Society of Otorhinolaryngology (SFORL) (short version). Specific treatment of epistaxis in Rendu-Osler-Weber disease.

Science.gov (United States)

Robard, L; Michel, J; Prulière Escabasse, V; Bequignon, E; Vérillaud, B; Malard, O; Crampette, L

2017-02-01

The authors present the guidelines of the French Oto-Rhino-Laryngology - Head and Neck Surgery Society (Société Française d'Oto-Rhino-Laryngologie et de Chirurgie de la Face et du Cou: SFORL) concerning specific treatment of epistaxis in Rendu-Osler-Weber disease. A multidisciplinary work-group was entrusted with a review of the scientific literature on the above topic. Guidelines were drawn up, based on the articles retrieved and the group members' individual experience. They were then read over by an editorial group independent of the work group. The final version was established in a coordination meeting. The guidelines were graded as A, B, C or expert opinion, by decreasing level of evidence. Rendu-Osler-Weber disease is diagnosed from the presence of at least three of Curaçao's four criteria. In acute epistaxis, bidigital compression is recommended. Embolization is reserved for resistant epistaxis. Non-resorbable nasal packing and cauterization are contraindicated. Patient education is essential. Telangiectasia of the nasal mucosa can be treated by various local means. In the event of insufficient control, systemic administration of tranexamic acid is recommended. Copyright © 2016 Elsevier Masson SAS. All rights reserved.

Europe Report, Science and Technology.

Science.gov (United States)

1986-09-29

MICROELECTRONICS Italian SGS President: Survival Strategies for Small Firms (Rudolf Schulze; VDI NACHRICHTEN , 11 Jul 86) 47 SCIENTIFIC AND INDUSTRIAL POLICY...29 September 1986 WEST EUROPE/^OtoEIECTRONICS ITALIAN SGS PRESIDENT: SURVIVAL STRATEGIES FOR SMALL FIRMS Duesseldorf VDI NACHRICHTEN in German...for Europe," first paragraph is VDI NACHRICHTEN introduction] [Text] Duesseldorf, 11 Jul 86—Japanese producers are in the process of taking over the

Alerta De Insecto-Escarabajo asiatico de antenoas largas

Science.gov (United States)

Marco A. Fonseca; Ronald F. Billings

Hay probablemente una sola generacion de ALB por a'o. Los escarabajos adultos por lo general estan presentes de mayo a octubre, pero se pueden encontrar mas temprano en la primavera o mas tarde en el oto?o si las temperaturas son calidas. Los adultos por lo general permanecen en el arbol del que emergieron o se pueden desplazar por distancias cortas hacia un...

Case series

African Journals Online (AJOL)

ebutamanya

16 mars 2016 ... Le but de ce travail est d'étudier les facteurs prédictifs de malignité dans les tumeurs parotidiennes à travers une étude rétrospective sur 76 cas de tumeurs de la parotide traités au service d'Oto-Rhino-Laryngologie et de Chirurgie Cervico-Faciale de l'hôpital militaire Avicenne de Marrakech entre janvier.

Three-dimensional, subsurface imaging synthetic aperture radar

International Nuclear Information System (INIS)

Moussally, G.J.

1994-01-01

The objective of this applied research and devolpment project is to develop a system known as 3-D SISAR. This sytem consists of a gound penetrating radar with software algorithms designed for detection, location, and identification of buried objects in the underground hazardous waste environments found at US DOE storage sites. Three-dimensional maps can assist the development of remdiation strategies and characterization of the digface during remediation. The system should also be useful for monitoring hydrocarbon-based contaminant migration after remediation. 5 figs

Water intake and fish protection sytems for thermal and nuclear power plants

International Nuclear Information System (INIS)

Kuz'min, D.O.; Lukashevich, V.S.

1986-01-01

Various designs of water intake and fish protection systems for TPP and NPP are considered. Water intake systems are divided into shore and outside shore types. There are two main modifications of the latter - opened and closed. The closed systems are more complex for construction and maintenance, but their negative influence on environment is considerably weaker. In disigning of water intake systems basic efforts are directed at optimization of a water intake device disposition, development of reliable repellents for fish, as well as devices for fish catch and return from the water intake region. A special attention is paid to the problem of preventing their icing. The conclusion of expedience of introducing into the water purification system reliable, soft mechanical barriers for fish equipped with means affecting its behaviour and preventing contacts of fish and water intake system elements was drawn

User Centric Data Acquisition and Delivery Sytems for Precision Ag, Phase I

Data.gov (United States)

National Aeronautics and Space Administration — The availability of remotely sensed data has been improving with each new high-resolution satellite obtaining operational capability in orbit. However, the ability...

Planiranje u turističkoj zajednici grada Otočca

OpenAIRE

Kostelac, Zdenka

2018-01-01

U ovom radu dan je prikaz planiranja kao prve funkcije menadţmenta. Izdvojena je važna funkcija planiranja kao formalni proces utvrđivanja vizije, misije i ciljeva poduzeća, kao i izbor adekvatnih strategija za ostvarenje ciljeva. Turistiĉke zajednice osnivaju se kao neprofitne organizacije a njihov rad određen je Zakonom u turistiĉkim zajednicama i promicanju hrvatskog turizma. Planiranjem u turistiĉkim zajednicama utvrđuju se kljuĉni ciljevi turistiĉke promidţbe, a polazište je u osnovnim i...

[Syndromic hereditary deafness. Usher's syndrome. Oto-neurologic and genetic factors].

Science.gov (United States)

Espinós, C; Pérez-Garrigues, H; Beneyto, M; Vilela, C; Rodrigo, O; Nájera, C

1999-01-01

Usher syndrome (USH) is an autosomal recessive hereditary disorder characterized by congenital bilateral sensorineural hearing loss and progressive loss of vision due to retinitis pigmentosa (RP). The prevalence of Usher syndrome is estimated to be 3-4.4 cases per 100.000 people. Several clinical types have been distinguished by age at onset, rate of progression, and severity of symptoms. Type I (USH1) is characterized by a congenital, severe-to-profound deafness and absent vestibular function. Type II (USH2) shows a congenital and moderate-to-severe hearing loss and normal vestibular response. It is also suggested a third type (USH3), clinically similar to USH2, but with progressive hearing loss. Genetic heterogeneity of USH is quite extensive. Up to now, seven different loci responsible for the defect are known: 14q, 11q, 11p, 10q and 21q for USH1; 1q for USH2 and 3q for USH3. Moreover, there are USH1 and USH2 families that fail to show linkage to these candidate regions demonstrating that should exist other loci causing USH, although their ubications are unknown. To date, only two genes involved in the USH pathology are known, although together they are responsibles of about the 80% of total USH cases: myosin VIIA, an unconventional myosin, involved in the USH1b phenotype and a protein similar to the laminina, responsible for the USH2a phenotype.

Logical frameworks for truth and abstraction an axiomatic study

CERN Document Server

Cantini, A

1996-01-01

This English translation of the author's original work has been thoroughly revised, expanded and updated. The book covers logical systems known as type-free or self-referential. These traditionally arise from any discussion on logical and semantical paradoxes. This particular volume, however, is not concerned with paradoxes but with the investigation of type-free sytems to show that: (i) there are rich theories of self-application, involving both operations and truth which can serve as foundations for property theory and formal semantics; (ii) these theories provide a new outlook on classical

Assessment of the permeation characteristics of fibre-reinforced materials and elastomers for applications in cryotechnics and refrigeration engineering; Bestimmung der Permeationseigenschaften von Faserverbundwerkstoffen und Elastomeren fuer den Einsatz in der Kryo- und Kaeltetechnik

Energy Technology Data Exchange (ETDEWEB)

Waschull, Joerg; Knabe, Monika; Grimm, Ulrich; Roemer, Siegfried [Institut fuer Luft- und Kaeltetechnik GmbH, Dresden (Germany)

2009-07-01

For safe and environmentally acceptable operation of cryotechnical and refrigerating sytems, the permeation characteristics of the elastomers and fibre-reinforced materials must be known. While elastomers are used primarily as sealing materials of refrigeration systems, fibre-reinforced materials are used increasingly in containers for supercooled liquids like LN2, LH2, and LH3. Measuring systems and methods were developed at the Institut of Ventilation and Refrigeration Engineering at Dresden (Institut fuer Luft- und Kaeltetechnik, Dresden) that enable quantitative statements on the permeation characteristics as a function of temperature. (orig.)

Modelling M/G/1 queueing systems with server vacations using stochastic Petri nets

Directory of Open Access Journals (Sweden)

K Ramanath

2006-12-01

Full Text Available The theory of non-Markovian stochastic Petri nets is employed in this paper to derive an alternative method for studying the steady state behaviour of the M/G/1 vacation queueing system with a limited service discipline. Three types of vacation schemes are considered, and sytems with both a finite population and those with an infinite population (but finite capacity are considered. Simple numerical examples are also provided to illustrate the functionality of the methods and some useful performance measures for the system are obtained.

Collection and analysis of environmental radiation data using a desktop computer

International Nuclear Information System (INIS)

Gogolak, C.V.

1982-04-01

A portable instrumentation sytem using a Hewlett-Packard HP-9825 desktop computer for the collection and analysis of environmental radiation data is described. Procedures for the transmission of data between the HP-9825 and various nuclear counters are given together with a description of the necessary hardware and software. Complete programs for the analysis of Ge(Li) and NaI(Tl) gamma-ray spectra, high pressure ionization chamber monitor data, 86 Kr monitor data and air filter sample alpha particle activity measurements are presented. Some utility programs, intended to increase system flexibility, are included

Skin innate immune system

Directory of Open Access Journals (Sweden)

Berna Aksoy

2013-06-01

Full Text Available All multicellular organisms protect themselves from external universe and microorganisms by innate immune sytem that is constitutively present. Skin innate immune system has several different components composed of epithelial barriers, humoral factors and cellular part. In this review information about skin innate immune system and its components are presented to the reader. Innate immunity, which wasn’t adequately interested in previously, is proven to provide a powerfull early protection system, control many infections before the acquired immunity starts and directs acquired immunity to develop optimally

Steam feeding redundancy for turbine-drives of feed pumps at WWER-1000 NPP

International Nuclear Information System (INIS)

Nesterov, Yu.V.; Shmukler, B.I.

1987-01-01

The system of steam supply for feed pump driving turbines (T) at the South Ukrainian Unit 1 according to the centralized redundancy principle is described. T is feeded through the collector of water auxiliary sytem (CWAS) to which steam from the third steam extraction line of turbine is supplied under thenormal regime. Under the reduction of turbine load, live steam from the steam generator is supplied to CWAS through the pressure regulator, possesing 10 s speed of responce. In this case the level reduction in the steam generator makes up 170 mm

Fuel management of mixed reactor type power plant systems

International Nuclear Information System (INIS)

Csom, Gyula

1988-01-01

Breeding gain in symbiotic nuclear power plant system consisting of both thermal and fast breeder reactors depends on the characteristics and the ratio of thermal and fast reactors. The composition of the symbiotic power plant systems was determined for equilibrium and plutonium deficient systems. According to natural uranium utilization, symbiotic power plant systems are not less efficient than the systems containing only fast breeders. Depleted uranium can be applied in both types of systems. Reprocessing demands of the symbiotic power plant sytems were determined. (V.N.) 23 figs.; 1 tab

Members of the Forum Engelberg visit CERN

CERN Multimedia

Patrice Loïez

2002-01-01

The Forum Engelberg is an annual interdisciplinary conference held in Engelberg, Switzerland intended to act as an international platform for debate and exchange of views on key issues affecting scientific research, technology, economics and philosophy. Pictured here in front of String 2 - the full-scale test facility for LHC sytems - are (left to right) H. Wenninger, Mme M. Quirina, Mme Marie-Anne Heimo, N. Siegel, Mme Konrade Von Bremen, Prof. Roger Berthouzoz, Mme Thérèse Wolf, Prof. Dr. Med. Bernard Mach and M. Alexander Höchli.

Does Spirituality Predict Weight Loss In A Behavioral Weight Loss Program?

Science.gov (United States)

2009-01-01

Raven Press. Taylor, S. E. (1995). Health Psychology (3rd ed.). New York: McGraw-Hill Inc. Tonkin, K. M. (2006). Obesity, bulimia , and binge... Psychology Committee Chairperson ·d:ttjii~ Department of Medical and Clinical Psychology Committee Member ... ~fJ ,)IJi’hb Department of Medical...and Clinical Psychology Committee Member f/~r Date 1/oto/()9 Date Report Documentation Page Form ApprovedOMB No. 0704-0188 Public reporting burden

Guidelines of the French Society of Otorhinolaryngology (SFORL). Epistaxis and high blood pressure.

Science.gov (United States)

Michel, J; Prulière Escabasse, V; Bequignon, E; Vérillaud, B; Robard, L; Crampette, L; Malard, O

2017-02-01

The authors present the guidelines of the French Oto-Rhino-Laryngology - Head and Neck Surgery Society (Société Française d'Oto-Rhino-Laryngologie et de Chirurgie de la Face et du Cou: SFORL) on epistaxis in high blood pressure. A multidisciplinary work group was entrusted with a review of the scientific literature on the above topic. Guidelines were drawn up, based on the articles retrieved and the group members' individual experience. They were then read over by an editorial group independent of the work group. The final version was established in a coordination meeting. The guidelines were graded as A, B, C or expert opinion, by decreasing level of evidence. It is recommended to measure the blood pressure of patients in acute-phase epistaxis (Grade A); to control high blood pressure medically in the acute phase of bleeding, to reduce its duration; to monitor blood pressure at the waning of nosebleed; and to control high blood pressure medically in the waning phase to reduce the risk of recurrence. In case of persistent high blood pressure on waning of severe epistaxis, it is recommended to prescribe cardiovascular evaluation to screen for underlying hypertensive disease (Grade B). Copyright © 2016 Elsevier Masson SAS. All rights reserved.

Biosilicate® Ototoxicity and Vestibulotoxicity evaluation in guinea-pigs Avaliação da ototoxicidade e vestibulotoxicidade do biosilicato® em orelhas de cobaias

Directory of Open Access Journals (Sweden)

Eduardo Tanaka Massuda

2009-10-01

Full Text Available Changes, destructions and interruptions in middle ear ossicular chain architecture may be caused by infection, trauma, tumors, congenital alterations or prior surgeries. Nonetheless, infectious and inflammatory processes, focal or generalized which affect the middle ear are the most prevalent, causing a great demand for ossiculoplasty. Biosilicato® is a new material which can be used in the middle ear with the goal of reconstructing the ossicular chain. It is a bioactive type A vitroceramic, in other words, it binds to bone or soft tissue in a matter of a few hours, thanks to the formation of hydroxy-carbonateapatatie in its contact surface when in contact with body fluids. AIMS: The goal of the present paper is to assess biosilicate ototoxicity and vestibular toxicity in experimental animals, for later use in humans. MATERIALS AND METHODS: This a clinical and experimental study in which otoacoustic emissions were performed before and after the placement of Biosilicate in the middle ear of experimental animals and a scanning electron microscopy was carried out in the cochlea, saccule, utriculus and macula of the semicircular canals after 30 and 90 days to assess oto and vestibular toxicity. RESULTS: There were no signs of oto or vestibular toxicity in any of the groups associated with biosilicate. CONCLUSION: Biosilicate is a safe material to be used in ossiculoplastiesAs alterações, destruições e interrupções da arquitetura da cadeia ossicular da orelha média podem ser causadas por infecções, trauma, tumores, alterações congênitas ou cirurgias prévias. Entretanto os processos inflamatórios e infecciosos, focais ou generalizados que acometem a orelha média são os mais prevalentes, gerando uma enorme demanda de ossiculoplastias. O Biosilicato® é um novo material que pode ser usado em orelhas médias com o objetivo de reconstruir a cadeia ossicular. Constitui-se de uma vitrocerâmica bioativa do tipo A, ou seja, que se liga a

Estatus de selenio en equinos Criollo-Chileno a pastoreo y su respuesta a la suplementación

Directory of Open Access Journals (Sweden)

Macarena Rioseco H.

2013-11-01

Full Text Available Objetivo. Dos experimentos se realizaron para determinar el estatus de selenio en equinos Criollo-Chileno a pastoreo y, evaluar la respuesta a la suplementación con Na2SeO3. Materiales y métodos. Exp.1A caballos pertenecientes a 10 criaderos del sur de Chile se les determinó la actividad sanguínea de glutatión peroxidasa (GPx, EC.1.11.1.9 (AcGPx. Los animales pertenecieron a 3 grupos, pastoreo de otoño (PO, n=40, pastoreo de otoño y suplementados con avena (PO+A, n=47, y, pastoreo de primavera (PP, n=41. Exp2Se utilizaron equinos con carencia de selenio, distribuidos en tres grupos: G1, n=7, tratado con Na2SeO3 el día 0 (Se= 0.05 mg/kg pv, im; G2, n=8, suplementado con Na2SeO3, los días 0 y 15 y GC, n=8, control. La AcGPx se determinó al día 0, 30 y 120. Resultados. La mediana (Me de la AcGPx en todos los grupos fue menor al límite adecuado (>130 U/gHb, mayor en PO+A (Me=92, P25%=47, P75%=129 U/gHb y PP (Me=85, P25%=45, P75%=114 U/gHb que en PO (Me=35, P25%=20, P75%=85 U/gHb (p<0.05. En el experimento 2 la AcGPx fue similar y menor al adecuado en todos los grupos. La suplementación con Na2SeO3 aumentó (p<0.05 la AcGPx en G1 (121±52 U/gHb y G2 (124±69 U/gHb, sin alcanzar valores adecuados. Conclusiones. Los equinos Criollo-Chileno a pastoreo en el sur de Chile presentan carencia de Se, mayor en otoño que primavera y menor al suplementar con avena. Adicionalmente, la administración parenteral de Na2SeO3 mejora el estatus de Se, pero sin revertir el cuadro carencial.

Desarrollo radical y rendimiento en diferentes variedades de trigo, cebada y triticale bajo condiciones limitantes de humedad del suelo

Directory of Open Access Journals (Sweden)

Luis Eduardo Miranda Domínguez

2016-10-01

Full Text Available El trigo (Triticum aestivum L., triticale (Triticosecale Wittmack y cebada (Hordeum vulgare L., se cultivan en México bajo riego y temporal o secano. En condiciones de secano se cultivan en la temporada de lluvias en verano-otoño y otoño-invierno con humedad residual, después de la temporada de lluvias, aunque con severos problemas de sequía terminal. El presente trabajo tuvo como objetivo estudiar el rendimiento de grano (RG y sus componentes, y la densidad radical (DR bajo condiciones de humedad residual en Oaxaca, México, durante el periodo otoño-invierno 2013-2014. Se utilizó un diseño experimental de bloques completos al azar con cuatro repeticiones; la unidad experimental fue de cuatro surcos de 4 ×0.4 m. Se sembró el 5 de octubre de 2013 con una densidad de siembra de 100 kg ha-1 y se fertilizó con la dosis 40-40-00. La cebada produjo mayor RG que el trigo y el triticale; el alto RG estuvo acompañado de un alto índice de cosecha (IC, peso del grano (PG y DR, y menor estatura de planta y ciclo biológico (CB más corto. El trigo y el triticale tuvieron un RG similar, sin embargo, el trigo ‘Venturero’ tuvo mayor RG que la mayoría de los genotipos de trigo y triticale con alto número de espigas m-2 (E M-2 y PG, y el más alto peso hectolitrico, la mayor DR y el CB más largo. Más del 50% de las raíces se concentraron cerca de la superficie del suelo (20 cm en todos los genotipos y se observó que el trigo tuvo mayor DR que la cebada y el triticale en los estratos de 20-100 cm, y el trigo ‘Venturero’ produjo más raíces que los demás genotipos desde la superficie del suelo hasta los 100 cm. Los genotipos de cebada y trigo con mayor DR produjeron mayor RG, confirmando su mayor resistencia a sequía.

Árbol de decisiones para la resolución de incidencias

OpenAIRE

Molas Roca, Meritxell

2016-01-01

Análisis e implementación de un sistema de información para dar soporte al personal del grupo de soporte técnico en Everis para la resolución de incidencias del SI existente en Gas Natural (área de contratación). Se va a desarrollar basándose en la definición de un árbol de decisiones. Analysis and implementation of an information system to support the staff group at Everis for resolve the problems existing at Natural Gas computer sytem. The process of resolution of an issue is displayed b...

Experimental study on the kinetically induced electronic excitation in atomic collisional cascades

International Nuclear Information System (INIS)

Meyer, S.

2006-01-01

the present thesis deals with the ion-collision-induced electronic excitation of metallic solids. For this for the first time metal-insulator-metal layer systems are used for the detection of this electronic excitation. The here applied aluminium/aluminium oxide/silver layer sytems have barrier heights of 2.4 eV on the aluminium respectively 3.3 eV on the silver side. With the results it could uniquely be shown that the electronic excitation is generated by kinetic processes, this excitation dependenc on the kinetic energy of the colliding particles, and the excitation dependes on the charge state of the projectile

Experimental study on the kinetically induced electronic excitation in atomic collisional cascades; Experimentelle Untersuchung zur kinetisch induzierten elektronischen Anregung in atomaren Stosskaskaden

Energy Technology Data Exchange (ETDEWEB)

Meyer, S.

2006-08-15

the present thesis deals with the ion-collision-induced electronic excitation of metallic solids. For this for the first time metal-insulator-metal layer systems are used for the detection of this electronic excitation. The here applied aluminium/aluminium oxide/silver layer sytems have barrier heights of 2.4 eV on the aluminium respectively 3.3 eV on the silver side. With the results it could uniquely be shown that the electronic excitation is generated by kinetic processes, this excitation dependenc on the kinetic energy of the colliding particles, and the excitation dependes on the charge state of the projectile.

The Research on Linux Memory Forensics

Science.gov (United States)

Zhang, Jun; Che, ShengBing

2018-03-01

Memory forensics is a branch of computer forensics. It does not depend on the operating system API, and analyzes operating system information from binary memory data. Based on the 64-bit Linux operating system, it analyzes system process and thread information from physical memory data. Using ELF file debugging information and propose a method for locating kernel structure member variable, it can be applied to different versions of the Linux operating system. The experimental results show that the method can successfully obtain the sytem process information from physical memory data, and can be compatible with multiple versions of the Linux kernel.

A Distributed Computing Network for Real-Time Systems.

Science.gov (United States)

1980-11-03

7 ) AU2 o NAVA TUNDEWATER SY$TEMS CENTER NEWPORT RI F/G 9/2 UIS RIBUT E 0 COMPUTIN G N LTWORK FOR REAL - TIME SYSTEMS .(U) UASSIFIED NOV Al 6 1...MORAIS - UT 92 dLEVEL c A Distributed Computing Network for Real - Time Systems . 11 𔃺-1 Gordon E/Morson I7 y tm- ,r - t "en t As J 2 -p .. - 7 I’ cNaval...NUMBER TD 5932 / N 4. TITLE mand SubotI. S. TYPE OF REPORT & PERIOD COVERED A DISTRIBUTED COMPUTING NETWORK FOR REAL - TIME SYSTEMS 6. PERFORMING ORG

Operational facility-integrated computer system for safeguards

International Nuclear Information System (INIS)

Armento, W.J.; Brooksbank, R.E.; Krichinsky, A.M.

1980-01-01

A computer system for safeguards in an active, remotely operated, nuclear fuel processing pilot plant has been developed. This sytem maintains (1) comprehensive records of special nuclear materials, (2) automatically updated book inventory files, (3) material transfer catalogs, (4) timely inventory estimations, (5) sample transactions, (6) automatic, on-line volume balances and alarmings, and (7) terminal access and applications software monitoring and logging. Future development will include near-real-time SNM mass balancing as both a static, in-tank summation and a dynamic, in-line determination. It is planned to incorporate aspects of site security and physical protection into the computer monitoring

SystemVerilog assertions and functional coverage guide to language, methodology and applications

CERN Document Server

Mehta, Ashok B

2013-01-01

This book provides a hands-on, application-oriented guide to the language and methodology of both SystemVerilog Assertions and SytemVerilog Functional Coverage.  Readers will benefit from the step-by-step approach to functional hardware verification, which will enable them to uncover hidden and hard to find bugs, point directly to the source of the bug, provide for a clean and easy way to model complex timing checks and objectively answer the question 'have we functionally verified everything'.  Written by a professional end-user of both SystemVerilog Assertions and SystemVerilog Functional Co

Thrombophlebite du sinus caverneux d'origine otogene : a propos d ...

African Journals Online (AJOL)

But : Nous illustrons un cas de thrombophlébite du sinus caverneux compliquant une oto-mastoïdite. Nous étudions à la lumière de la littérature les difficultés diagnostiques et l'importance de la mise en oeuvre d'un traitement précoce et adapté afin d'éviter les séquelles ultérieures. Observation : Il s'agit d'un enfant âgé de ...

Anatomia del nervo faciale

OpenAIRE

Barbut , J.; Tankere , F.; Bernat , I.

2017-01-01

International audience; Il nervo faciale è al centro della pratica quotidiana in oto-rino-laringoiatria. La sua singolare fisiologia e la sua patologia fanno di questo paio di nervi cranici un soggetto appassionante in cui alcuni si sono specializzati. La precisa conoscenza della sua anatomia, il cui percorso è tortuoso e presenta molte relazioni con altri elementi nobili, è un prerequisito indispensabile per il suo approccio, sia in chirurgia cervicale che in quella otologica che in quella n...

Memoria y recuerdo en "Otoño en Madrid hacia 1950"

OpenAIRE

Diaz Navarro, Epicteto

1995-01-01

Se examina la construcción fragmentaria del libro de memorias que resulta de la unión de diversos homenajes y textos periodísticos, que se distancia de la poética narrativa de Juan Benet por su contenido autobiográfico. No obstante, la subjetividad de la escritura mantiene este singular relato a distancia de los modelos del género

Techno-economic analysis of the coal-to-olefins process in comparison with the oil-to-olefins process

International Nuclear Information System (INIS)

Xiang, Dong; Qian, Yu; Man, Yi; Yang, Siyu

2014-01-01

Highlights: • Present the opportunities and challenges of coal-to-olefins (CTO) development. • Conduct a techno-economic analysis on CTO compared with oil-to-olefins (OTO). • Suggest approaches for improving energy efficiency and economic performance of CTO. • Analyze effects of plant scale, feedstock price, CO 2 tax on CTO and OTO. - Abstract: Olefins are one of the most important oil derivatives widely used in industry. To reduce the dependence of olefins industry on oil, China is increasing the production of olefins from alternative energy resources, especially from coal. This study is concerned with the opportunities and obstacles of coal-to-olefins development, and focuses on making an overall techno-economic analysis of a coal-to-olefins plant with the capacity of 0.7 Mt/a olefins. Comparison is made with a 1.5 Mt/a oil-to-olefins plant based on three criteria including energy efficiency, capital investment, and product cost. It was found that the coal-based olefins process show prominent advantage in product cost because of the low price of its feedstock. However, it suffers from the limitations of higher capital investment, lower energy efficiency, and higher emissions. The effects of production scale, raw material price, and carbon tax were varied for the two production routes, and thus the operational regions were found for the coal-to-olefins process to be competitive

NATO Planning Guide for the Estimation of Chemical, Biological, Radiological, and Nuclear (CBRN) Casualties (AMedP-8(C)) - Parameters for Estimation of Casualties from Exposure to Specified Biological Agents. Addenda to Allied Medical Publication 8

Science.gov (United States)

2011-01-01

no. 2510 (1909): 319–25; I. Sobol , “A Case of Chronic Nasal Glanders,” Acta Oto-Laryngologica 18, no. 4 (1933): 500–9; J. F. Burgess, “Chronic...Observations on Human Glanders;” Sobol , “A Case of Chronic Nasal Glanders;” Burgess, “Chronic Glanders;” Herold and Erickson, "Human Glanders: Case...Human Subject;” Hunting, Glanders: A Clinical Treatise; Bernstein and Carling, “Observations on Human Glanders;” Sobol , “A Case of Chronic Nasal

Stemcell Information: SKIP000155 [SKIP Stemcell Database[Archive

Lifescience Database Archive (English)

Full Text Available ute for Frontier Medical Sciences, Kyoto University 京都大学再生医科学研究所 Institute for Frontier Medical Sciences, Ky...oto University 京都大学再生医科学研究所 Hirofumi Suemori 末盛　博文 Available Institute for Frontier Medical Sciences, Kyoto University 京都大学再生医科学研究所　（共同研究ベースでの使用） ...

A cognitive operating system (COGNOSYS) for JPL's robot, phase 1 report

Science.gov (United States)

Mathur, F. P.

1972-01-01

The most important software requirement for any robot development is the COGNitive Operating SYStem (COGNOSYS). This report describes the Stanford University Artificial Intelligence Laboratory's hand eye software system from the point of view of developing a cognitive operating system for JPL's robot. In this, the Phase 1 of the JPL robot COGNOSYS task the installation of a SAIL compiler and a FAIL assembler on Caltech's PDP-10 have been accomplished and guidelines have been prepared for the implementation of a Stanford University type hand eye software system on JPL-Caltech's computing facility. The alternatives offered by using RAND-USC's PDP-10 Tenex operating sytem are also considered.

Stability of large orbit, high-current particle rings

International Nuclear Information System (INIS)

Lovelace, R.V.E.

1994-01-01

A review is made of theory of the low-frequency stability of large orbit, high-current particle rings which continue to be of interest for compact fusion systems. The precession mode was the first mode predicted by Furth and observed by Christofilos to be unstable under certain conditions. Subsequently, many detailed studies have been made of the stability of particle rings- different modes, different ring geometries, systems with/without a toroidal B field, and sytems with/without a current carrying plasma component. The possibly dangerous modes are still thought to include the precession mode, the tilting mode, and the low order kink modes. copyright American Institute of Physics

ESA web mapping activities applied to Earth observation

Science.gov (United States)

Caspar, C.; Petiteville, I.; Kohlhammer, G.; Tandurella, G.

2002-05-01

Thousands of Earth Observation satellite instrument products are generated daily, in a multitude of formats, using a variety of projection coordinate sytems. This diversity is a barrier to the development of EO multi-mission-based applications and prevents the merging of EO data with GIS data, which is requested by the user community (value-added companies, serivce providers, scientists, institutions, commercial users, and academic users). The web mapping technologies introduced in this article represent an elegant and low-technologies introduced in this article represent an elegant and low-cost solution. The extraordinary added value that is achieved may be considered a revolution in the use of EO data products.

Pressure-amplified Common Rail System for commercial vehicles; Druckuebersetztes Common-Rail-System fuer Nutzfahrzeuge

Energy Technology Data Exchange (ETDEWEB)

Leonhard, Rolf; Parche, Marcus; Alvarez-Avila, Carlos [Bosch AG, Stuttgart (Germany). Diesel Systems; Krauss, Jost; Rosenau, Bernd [Bosch AG, Stuttgart (Germany). Common-Rail-Systeme

2009-05-15

The key to a successful layout of a combustion system for commercial vehicles is in the management of peak torque operation points. For this purpose, Bosch has enhanced its Common Rail System with increasing degrees of freedom - i.e. with flexible rate shaping. A second solenoid valve activates a pressure-amplifier inside the injector, an optimized offset of nozzle needle timing reduces the injection rate by half right at the start of injection, and the formation of nitrogen oxide is reduced considerably. This enables the engine manufacturer to adhere to the emission limits while further reducing fuel consumption and the engine-related effort for the air sytem. (orig.)

Construction and testing of a double acting bellows liquid helium pump

International Nuclear Information System (INIS)

Burns, W.A.; Green, M.A.; Ross, R.R.; Van Slyke, H.

1980-05-01

The double acting reciprocating bellows liquid helium pump built and tested at the Lawrence Berkeley Laboratory is described. The pump is capable of delivering 50 gs -1 of liquid helium to supply the two-phase cooling sytem for a large superconducting magnet. The pump is driven by a torque motor at room temperature; the reciprocating motion is transmitted to the pump through a shaft which operates between room temperature and 4 0 K. The design details of this liquid helium pump are presented. The helium pump has operated in a helium bath and in pumped forced flow helium circuits. The results of these experimental tests are presented in this report

¿Existen variaciones interanuales en el crecimiento larval de anchoíta bonaerense (Engraulis anchoita)?

OpenAIRE

Barretto, A.C.; Chandler, D.E.; Gómez, M.I.

2005-01-01

Se determinaron las tasas de crecimiento de larvas de la anchoíta argentina (Engraulis anchoíta) provenientes de la plataforma bonaerense, contando y midiendo incrementos diarios en sus otolitos sagitta. Las larvas se capturaron en diferentes años y durante diferentes épocas (otoño de 1999; invierno de 2000 y primavera de 2002, 2003 y 2004)a los fines de analizar diferencias interanuales en el crecimiento. Se observó que tanto el crecimiento de las larvas como el del otolito estaban acoplados...

Mezclas etanol-gasolina como combustible de motores de encendido por chispa

OpenAIRE

Rodríguez, Luis Arnoby; Ray Long, Bill

2010-01-01

In the Agricultural Mechanics Shop at Texas A&I University in Kingsville (TX), six ethanolgasoline blends (0, 20, 40, 60, 80 and 100% ethanol) were used to operated a six-cylinder engine at different operating conditions of air-fuel ratio, timing, load and speed. A main jet the carburator was used for each fuel to obtaining its stoichiometric air-fuel ratio. The main jet diameter was enlarged 1262 times from gasoline to ethanol. To select the optimun timing, timing was varied from Oto 26°...

Gravitational observation in central Hokkaido; Hokkaido chuobu ni okeru juryoku sokutei ni tsuite

Energy Technology Data Exchange (ETDEWEB)

Murata, Y; Makino, M [Geological Survey of Japan, Tsukuba (Japan)

1997-10-22

To compile a base map of gravity in Hokkaido, gravity was measured in central Hokkaido where gravity data are absent. Gravity anomaly was made clear in this region. Survey area was 87 km in the east-west and 224 km in the north-south. A topographic map with a scale of 25,000:1 was initially used for determining location and altitude of gravity measuring points. Since the GPS survey was found to be very useful for gravitational observation in the region of Hyogo-ken Nanbu Earthquake in 1995, the GPS has been used in this survey from 1996. Based on new measurements at 2,148 points in addition to existing points, Bouguer anomaly map was made, and density distribution of surface layer of the crust was estimated. As a result, the gravity anomaly pattern in the north-south direction and gravity anomaly in basins and volcanoes were made clear. Quantitative analysis is to be conducted using these gravity data. Using these gravity data, the density distribution of surface layer of the crust was estimated. This distribution agreed well with the geological map in this region. 4 refs., 6 figs.

Magnetic prospecting in Kaibuki-yama ancient tomb; Kaibukiyama kofun ni okeru zenjiryoku sokutei

Energy Technology Data Exchange (ETDEWEB)

Nishitani, T [Akita University, Akita (Japan). Mining College

1996-10-01

Kaibuki-yama ancient tomb located in Kumeda, Kishiwada City, Osaka has a square shape in the front and an orbicular shape in the rear, which was considered to be made in the 4th century. This ancient tomb has a total length about 135 m, a diameter of orbicular shape in the rear about 82 m, and a height about 9 m, which is a symbolical existence of the Kumeda ancient tombs. Stone chamber and stone casket made of Sanbagawa crystalline schist or rhyolitic-andesitic tuff are expected in this tomb. Magnetic prospecting in this study is accompanied with this survey. A differential type proton magnetometer was used for the measurements, which were conducted using meshes with 1 m edges. A pair of distinct positive and negative magnetic anomalies were observed in the center of orbicular shape in the rear. This coincides with a location of main body buried, which is archaeologically estimated. The magnetic anomaly might be caused by the article buried in the tomb, such as ironware, based on the measurement of magnetic intensity. From the calculated values of magnetic anomaly using a model, the buried article with magnetic anomaly was considered to have a size with length of 1 m, width of 0.1 m, and height of 0.2m. The negative magnetic anomaly could not be explained only by this. It is necessary to consider the other reasons. 8 refs., 8 figs.

Sound therapy and aural rehabilitation for tinnitus: a person centred therapy framework based on an ecological model of tinnitus.

Science.gov (United States)

Searchfield, Grant D; Linford, Tania; Durai, Mithila

2018-03-23

Tinnitus is a common oto-neurological complaint often accompanying hearing loss. In this perspective on rehabilitation we describe a framework for sound therapy and aural rehabilitation of tinnitus based on the ecological model of tinnitus. A thematic network analysis-based approach was used to relate aural rehabilitation methods to the ecological model of tinnitus and the client-oriented scale of improvement in tinnitus. Aural rehabilitation methods were mapped to concepts of: (1) Context, (2) presence of sound and (3) reaction to sound. A global theme was: adaptation to sound. The framework is the result of an iterative and cumulative research program exploring tinnitus as the outcome of the relationship between individual psychoacoustics and psychosocial factors including context of perception. The intent of this framework is to help guide audiologists managing tinnitus. The framework has been useful in our clinic as illustrated by a case study. The benefits of this approach relative to standard care needs to be independently ascertained. Implications for Rehabilitation Tinnitus is a common oto-neurological complaint that when severe can be very disabling. Tinnitus is very heterogeneous as a consequence of this no one treatment is suitable for everyone. The sound therapy and aural rehabilitation for tinnitus framework is designed to assist audiologists in clinical planning that addresses individual needs. The framework is the result of an iterative and cumulative research program exploring tinnitus as the outcome of the relationship between individual psychoacoustics and psychosocial factors including context of perception.

Association of Otolaryngology Resident Duty Hour Restrictions With Procedure-Specific Outcomes in Head and Neck Endocrine Surgery

Science.gov (United States)

Smith, Aaron; Braden, Lauren; Wan, Jim

2017-01-01

Importance Graduate medical education has undergone a transformation from traditional long work hours to a restricted plan to allow adequate rest for residents. The initial goal of this restriction is to improve patient outcomes. Objective To determine whether duty hour restrictions had any impact on surgery-specific outcomes by analyzing complications following thyroid and parathyroid procedures performed before and after duty hour reform. Design, Setting, and Participants Retrospective cross-sectional analysis of the National Inpatient Sample (NIS).The NIS was queried for procedure codes associated with thyroid and parathyroid procedures for the years 2000 to 2002 and 2006 to 2008. Hospitals were divided based on teaching status into 3 groups: nonteaching hospitals (NTHs), teaching hospitals without otolaryngology programs (THs), and teaching hospitals with otolaryngology programs (THs-OTO). Main Outcomes and Measures Procedure-specific complication rates, length of stay, and mortality rates were collected. SAS statistical software (version 9.4) was used for analysis with adjustment using Charlson comorbidity index. Results Total numbers of head and neck endocrine procedures were 34 685 and 39 770 (a 14.7% increase), for 2000 to 2002 and 2006 to 2008, respectively. THs-OTO contributed a greater share of procedures in 2006 to 2008 (from 18% to 25%). With the earlier period serving as the reference, length of stay remained constant (2.1 days); however, total hospital charges increased (from $12 978 to $23 708; P otolaryngology programs. PMID:28196195

Quality of life and associated clinical distress in fibromyalgia

Directory of Open Access Journals (Sweden)

G. Perpignano

2011-09-01

Full Text Available Objectives: Fibromyalgia (FM is a syndrome characterized by chronic, diffuse musculoskeletal pain and by a low pain threshold at specific anatomical points (tender points. Numerous other conditions (Irritable bowel syndrome, tension-type headache, migraine headaches, etc. may overlap with FM. Aim of this study was to evaluate the quality of life and associated clinical distress in patients with FM. Methods: 53 females affected by primary fibromyalgia and 40 healthy females were examined were examined by an experienced rheumatologist and interviewed using the Fibromyalgia Impact Questionnaire (FIQ. Clinical monitoring included Visual Analogue Scale for pain and pain pressure threshold measurements. Results: Mean FIQ scores were 66.39±14.94 in FM patients and 13.15±5.37 in control subjects and the difference was statistically significant. Among associated clinical distress higher frequencies have been found for paraesthesia (87%, sleep disturbance (72%, tension type headache (70%, oto-vestibule syndrome (72% and irritable colon (60%. An R.O.C. bend was developed in the presence of paraesthesias and oto-vestibule syndromes at the same time. This allowed us to identify a FIQ cut off value of 66.85 so FM patients were divided into 2 groups according to their FIQ scores: severe degree and mild or slight degree. Conclusions: Based on our data, it would appear possible to use a FIQ value equal to or higher than 66.85 for the clinical picture of FM to be classified as severe.

A Rat Model of Sytemic Chemotherapy for Breast Cancer to Evaluate and Treat Chemobrain

Science.gov (United States)

2007-09-01

conditioning was performed last, just prior to animal euthanasia . 34 Results: Fear Conditioning While there was no statistically significant...learning and neuroprotection. Nat Med 9:1173-1179. Epub 2003 Aug 1117. Eadie BD, Redila VA, Christie BR (2005) Voluntary exercise alters the...enrichment and voluntary exercise massively increase neurogenesis in the adult hippocampus via dissociable pathways. Hippocampus 16:250-260. Overstreet

Examining Food Risk in the Large using a Complex, Networked System-of-sytems Approach

Energy Technology Data Exchange (ETDEWEB)

Ambrosiano, John [Los Alamos National Laboratory; Newkirk, Ryan [U OF MINNESOTA; Mc Donald, Mark P [VANDERBILT U

2010-12-03

The food production infrastructure is a highly complex system of systems. Characterizing the risks of intentional contamination in multi-ingredient manufactured foods is extremely challenging because the risks depend on the vulnerabilities of food processing facilities and on the intricacies of the supply-distribution networks that link them. A pure engineering approach to modeling the system is impractical because of the overall system complexity and paucity of data. A methodology is needed to assess food contamination risk 'in the large', based on current, high-level information about manufacturing facilities, corrunodities and markets, that will indicate which food categories are most at risk of intentional contamination and warrant deeper analysis. The approach begins by decomposing the system for producing a multi-ingredient food into instances of two subsystem archetypes: (1) the relevant manufacturing and processing facilities, and (2) the networked corrunodity flows that link them to each other and consumers. Ingredient manufacturing subsystems are modeled as generic systems dynamics models with distributions of key parameters that span the configurations of real facilities. Networks representing the distribution systems are synthesized from general information about food corrunodities. This is done in a series of steps. First, probability networks representing the aggregated flows of food from manufacturers to wholesalers, retailers, other manufacturers, and direct consumers are inferred from high-level approximate information. This is followed by disaggregation of the general flows into flows connecting 'large' and 'small' categories of manufacturers, wholesalers, retailers, and consumers. Optimization methods are then used to determine the most likely network flows consistent with given data. Vulnerability can be assessed for a potential contamination point using a modified CARVER + Shock model. Once the facility and corrunodity flow models are instantiated, a risk consequence analysis can be performed by injecting contaminant at chosen points in the system and propagating the event through the overarching system to arrive at morbidity and mortality figures. A generic chocolate snack cake model, consisting of fluid milk, liquid eggs, and cocoa, is described as an intended proof of concept for multi-ingredient food systems. We aim for an eventual tool that can be used directly by policy makers and planners.

A Rat Model of Sytemic Chemotherapy for Breast Cancer to Evaluate and Treat Chemobrain

National Research Council Canada - National Science Library

Little, Kevin C

2007-01-01

...) that recapitulates the physical symptoms of chemotherapy treatment. We investigated the effects of this regimen on learning and memory as well as on the production and survival of new neurons in the hippocampus (neurogenesis...

Uso de plaguicidas en un valle agrícola tecnificado en el noroeste de México

OpenAIRE

LEYVA MORALES, José Belisario; GARCÍA DE LA PARRA, Luz María; BASTIDAS BASTIDAS, Pedro de Jesús; ASTORGA RODRÍGUEZ, Jesús Efrén; BEJARANO TRUJILLO, Jorge; CRUZ HERNÁNDEZ, Alejandro; MARTÍNEZ RODRÍGUEZ, Irma Eugenia; BETANCOURT LOZANO, Miguel

2014-01-01

En el presente estudio se comparan dos procedimientos para conocer el uso de plaguicidas durante los ciclos otoño-invierno (O-I) 2011-2012 y primavera-verano (P-V) 2012 en el Valle de Culiacán, Sinaloa. A nivel nacional, este valle es una importante región agrícola tecnificada, productora de hortalizas y granos. Se analizaron las diferencias existentes en cuanto a cantidad total de ingrediente activo, según los registros del programa "Campo Limpio" y bitácoras de aplicación de varias empresas...

¡Viva el-Rey! Rey imaginario y revuelta en la Galicia bajomedieval

Directory of Open Access Journals (Sweden)

Carlos BARROS

2009-12-01

Full Text Available En el otoño de la Edad Media la representación gallega del Rey estaba condicionada por una circunstancia excepcional: Galicia era un reino sin rey propio. Desde el visigodo Leovigildo (año 585 hasta los Reyes Católicos, quitando los paréntesis altomedievales1, el Rey de los gallegos no era otro que el rey hispano occidental: Rey de Asturias, Rey de León, Rey de Castilla y León, Reyes de Castilla y Aragón.

Laringotraqueobronquitis en niños hospitalizados: Características clínicas

OpenAIRE

Iñiguez O., Fernando; Vega-Briceño, Luis E.; Pulgar B., Dahiana; Díaz P., Carla; Sánchez D., Ignacio

2005-01-01

Introducción: Laringotraqueobronquitis (LTB) es una condición frecuente en niños, con escasos estudios publicados en la literatura nacional. Objetivo: Caracterizar los episodios de LTB en nuestra institución. Método: Estudio retrospectivo descriptivo del 2001 al 2003. Resultados: 68 pacientes sufrieron 72 episodios de LTB. La edad promedio fue 16,5 meses, 62% eran varones. La mayoría de los ingresos ocurrieron en otoño (65%). El número de días promedio de síntomas previo al ingreso fue 2, sie...

Variación espacial y temporal de la toxicidad natural en cnidarios, briozoos y tunicados de cuevas mediterráneas

OpenAIRE

Martí, Ruth; Uriz, María Jesús; Turon, Xavier

2005-01-01

Se analizó la toxicidad natural, mediante Microtox®, de cnidarios, briozoos y tunicados de dos cuevas, en primavera y otoño. Una cueva estaba localizada en el Archipiélago de Cabrera (Islas Baleares) y la otra en las Islas Medas (Litoral Catalán). Los organismos analizados fueron una buena representación de los recubrimientos de cada Tipo en las comunidades de dichas cuevas, aunque eran menos abundantes que las esponjas, el grupo dominante. El setenta y uno por ciento de las especies analizad...

Sistema financiero y productividad económica

OpenAIRE

Antonio Torrero Mañas

2012-01-01

La crisis financiera que estalla en el otoño del 2007 ha inducido a reflexionar sobre los efectos económicos de las finanzas. De manera muy especial se están analizando las consecuencias de la expansión de mercados, instituciones y volumen de transacciones financieras. Las finanzas se han extendido en todas las facetas de la vida económica, con las familias como protagonista esencial. La actuación de Gobiernos y Bancos Centrales ha tenido muy en cuenta la experiencia de la Gran Depresión, ...

Diseño de estructuras prefabricadas que protejan y favorezcan la cocción del ladrillo en Linares (Chile)

OpenAIRE

Gutiérrez Ortiz, Alberto

2016-01-01

En la presente memoria desarrollaremos el diseño de una estructura móvil prefabricada con la que proteger los hornos de cocción de ladrillo de las inclemencias del tiempo durante la época de otoño e invierno. Abordaremos la historia y situación actual de la construcción prefabricada en Europa y en Chile, para decidir si el material principal de nuestra estructura será madera, metal o hormigón prefabricado; así como la situación actual de los hornos tradicionales de ladrillo de ...

Hearing loss and cochlear damage in experimental pneumococcal meningitis, with special reference to the role of neutrophil granulytes

DEFF Research Database (Denmark)

Brandt, CT; Caye-Thomsen, P; Lund, SP

2006-01-01

of an augmented neutrophil response on the development of hearing loss and cochlear damage in a model of experimental pneumococcal meningitis in rats. Hearing loss and cochlear damage were assessed by distortion product oto-acoustic emissions (DPOAE), auditory brainstem response (ABR) and histopathology in rats...... infection. Pretreatment with G-CSF increased hearing loss 24 h after infection and on day 8 compared to untreated rats (Mann-Whitney, P = 0.012 and P = 0.013 respectively). The increased sensorineural hearing loss at day 8 was associated with significantly decreased spiral ganglion cell counts (P = 0...

Biological and other soil parameters response to winter cover crops in a mediterranean irrigated system

OpenAIRE

García González, Irene

2017-01-01

El reemplazo del tradicional barbecho de otoño-invierno por cultivos cubierta (CC) ha permitido la obtención de beneficios tanto a nivel de suelo como a nivel del cultivo principal. El estudio de la actividad microbiológica es un factor muy importante para llegar a comprender las interacciones suelo-planta y poder prever los cambios que se produzcan a corto plazo debido a las modificaciones en el manejo del sistema agrícola. La investigación se ha llevado a cabo en dos zonas de clima y suelos...

Collembola (Hexapoda) as quality bioindicators of the hydrocarburans polluted soils in Southestern Mexico

OpenAIRE

Uribe-Hernández, Raúl; Juárez-Méndez, Carlos H.; Montes de Oca, Marco A.; Palacios-Vargas, José G.; Cutz-Pool, Leopoldo; Mejía-Recarmier, Blanca E.

2010-01-01

Se evaluaron invertebrados del suelo, en particular los colémbolos, como bioindicadores de la calidad de suelos contaminados con hidrocarburos en el sureste de México. Se realizaron 2 muestreos en verano-otoño del 2004, en 4 parcelas de 2 hectáreas, denominadas zona 1, 2, 3 y control. De cada unidad se tomaron 8 muestras que fueron procesadas por medio del embudo de Berlese-Tullgren y 4 por el método de flotación. Para colémbolos se determinaron los siguientes índices ecológicos: abundancia, ...

The Development of Performance-Based Auditory Aviation Classification Standards in the U.S. Navy,

Science.gov (United States)

1987-12-01

Gerontology, Vol. 24(2), pp. 189-192, 1969. 10. Palva, A. and Jokinen, K., ’The Role of the Binaural Test in Filtered Speech Audiometry." Acta Oto...BEAD BEAT BEAN REEL HEEL EEL PAVE PALE PAY WIG RIG FIG GALE MALE TALE PAGE PANE PACE PIG BIG DIG PALE SALE BALE DID DIN DIP SAP SAG SAD SIN WIN...SEEN SEED SEEK CAME GAME SAME NEAT BEAT SEAT SEEM SEETHE SEEP PAD PASS PATH PARK MARK HARK SIP RIP TIP PACK PAN PAT DARK LARK BARK LIP HIP DIP LED

Use of Adelavin 9 in the field of oto-rhino-pharyngo-laryngology

International Nuclear Information System (INIS)

Yoshii, Seiichiro; Miyoshi, Yasuro; Sakakura, Yasuo; Majima, Yuichi; Yamagiwa, Mikikazu

1976-01-01

Adelavin 9 was employed to 27 patients with radiomucositis. Markedly effective, 2 patients; effective, 10; slightly effective, 9; ineffective, 5; obscure, 1. Adelavin 9 was employed to 7 patients with apthous stomatitis and glossitis. Markedly effective, 1; effective, 3; slightly effective, 2; ineffective, 1. In radiomucositis, the effect was frequently seen with the administration of 10 - 20 times. In apthous stomatitis and glossitis, the effect was frequently seen with the administration of 5 - 10 times. There was no side effect in the administration of Adelavin 9. (Ichikawa, K.)

A Geo-Distributed System Architecture for Different Domains

Science.gov (United States)

Moßgraber, Jürgen; Middleton, Stuart; Tao, Ran

2013-04-01

The presentation will describe work on the system-of-systems (SoS) architecture that is being developed in the EU FP7 project TRIDEC on "Collaborative, Complex and Critical Decision-Support in Evolving Crises". In this project we deal with two use-cases: Natural Crisis Management (e.g. Tsunami Early Warning) and Industrial Subsurface Development (e.g. drilling for oil). These use-cases seem to be quite different at first sight but share a lot of similarities, like managing and looking up available sensors, extracting data from them and annotate it semantically, intelligently manage the data (big data problem), run mathematical analysis algorithms on the data and finally provide decision support on this basis. The main challenge was to create a generic architecture which fits both use-cases. The requirements to the architecture are manifold and the whole spectrum of a modern, geo-distributed and collaborative system comes into play. Obviously, one cannot expect to tackle these challenges adequately with a monolithic system or with a single technology. Therefore, a system architecture providing the blueprints to implement the system-of-systems approach has to combine multiple technologies and architectural styles. The most important architectural challenges we needed to address are 1. Build a scalable communication layer for a System-of-sytems 2. Build a resilient communication layer for a System-of-sytems 3. Efficiently publish large volumes of semantically rich sensor data 4. Scalable and high performance storage of large distributed datasets 5. Handling federated multi-domain heterogeneous data 6. Discovery of resources in a geo-distributed SoS 7. Coordination of work between geo-distributed systems The design decisions made for each of them will be presented. These developed concepts are also applicable to the requirements of the Future Internet (FI) and Internet of Things (IoT) which will provide services like smart grids, smart metering, logistics and

International Conference on Dynamical Systems : Theory and Applications

CERN Document Server

2016-01-01

The book is a collection of contributions devoted to analytical, numerical and experimental techniques of dynamical systems, presented at the international conference "Dynamical Systems: Theory and Applications," held in Lódz, Poland on December 7-10, 2015. The studies give deep insight into new perspectives in analysis, simulation, and optimization of dynamical systems, emphasizing directions for future research. Broadly outlined topics covered include: bifurcation and chaos in dynamical systems, asymptotic methods in nonlinear dynamics, dynamics in life sciences and bioengineering, original numerical methods of vibration analysis, control in dynamical systems, stability of dynamical systems, vibrations of lumped and continuous sytems, non-smooth systems, engineering systems and differential equations, mathematical approaches to dynamical systems, and mechatronics.

International Conference on Dynamical Systems : Theory and Applications

CERN Document Server

2016-01-01

The book is the second volume of a collection of contributions devoted to analytical, numerical and experimental techniques of dynamical systems, presented at the international conference "Dynamical Systems: Theory and Applications," held in Lódz, Poland on December 7-10, 2015. The studies give deep insight into new perspectives in analysis, simulation, and optimization of dynamical systems, emphasizing directions for future research. Broadly outlined topics covered include: bifurcation and chaos in dynamical systems, asymptotic methods in nonlinear dynamics, dynamics in life sciences and bioengineering, original numerical methods of vibration analysis, control in dynamical systems, stability of dynamical systems, vibrations of lumped and continuous sytems, non-smooth systems, engineering systems and differential equations, mathematical approaches to dynamical systems, and mechatronics.

Thermodynamics for engineers. Text- and workbook for university students. 2. tot. rev. ed.

International Nuclear Information System (INIS)

Langeheinecke, K.; Sapper, E.

1999-01-01

Technical thermodynamics is part of the basics of engineering. This book lays the foundation needed to understand the real thermal processes. Extensive explanations with a large number of diagrams, examples, problems and exercises illustrate the theory, philosophy, methods and tools of thermodynamics and make this book a valuable instrument of self-study. Specially taken into account is the imparting of technical terminology. The added CDrom presents computer codes for heat transfer, gas-vapor mixtures, combustion and material values, a formula collection THERMODYNAMIK MEMORY and an extensive alphabetic THERMODYNAMIK GLOSSAR. The content in brief: Sytems and their description, material properties, energy, the second fundamental sentence, ideal gases, gas- and gas-vapor-mixtures, heat engines, heat transfer and combustion [de

High Performance Computing in Science and Engineering '02 : Transactions of the High Performance Computing Center

CERN Document Server

Jäger, Willi

2003-01-01

This book presents the state-of-the-art in modeling and simulation on supercomputers. Leading German research groups present their results achieved on high-end systems of the High Performance Computing Center Stuttgart (HLRS) for the year 2002. Reports cover all fields of supercomputing simulation ranging from computational fluid dynamics to computer science. Special emphasis is given to industrially relevant applications. Moreover, by presenting results for both vector sytems and micro-processor based systems the book allows to compare performance levels and usability of a variety of supercomputer architectures. It therefore becomes an indispensable guidebook to assess the impact of the Japanese Earth Simulator project on supercomputing in the years to come.

PERAN MODERASI KECERDASAN EMOSI PADA STRES KERJA

Directory of Open Access Journals (Sweden)

Frengky Sanjaya

2012-09-01

Full Text Available Penelitian ini bertujuan untuk mengetahui pengaruh stres kerja terhadap kinerja karyawan dan pengaruh kecerdasan emosi terhadap hubungan antara stres kerja dengan kinerja karyawan. Populasi penelitian ini adalah seluruh karyawan marketing dan collection di PT. Summit Oto Finance Kudus. Pada penelitian ini menggunakan teknik populasi, responden diambil dari semua karyawan marketing sebanyak 25 responden dan karyawan collection sebanyak 21 responden. Teknik analisis data menggunakan analisis regresi sederhana dan analisis regresi berganda moderasi. Hasil dari analisis regresi sederhana menunjukkan bahwa stres kerja berpengaruh negatif terhadap kinerja karyawan. Sedangkan hasil dari analisis regresi sederhana menunjukkan bahwa kecerdasan emosi memoderasi pengaruh stres kerja terhadap kinerja. Hasil tersebut mengindikasikan bahwa kecerdasan emosi melemahkan pengaruh stres kerja terhadap kinerja.The objective of this study is to know influence of job stress to job performance and influence of emotional intelligence to relationship between job stress and job performance. Population in this study was all marketing and collection employees in PT. Summit Oto Finance Kudus. In this study used population method, that is taken all of marketing employees as much as 25 respondents and collection employees as much as 21 respondents. The technique of data analysis used regression analysis and doubled regression moderating analysis. The result usedregression analysis showed that negative influence between job stres and job performanc. Meanwhile, the result using doubled regression moderating analysis showed that emotional intelligence moderate influence of job stress to job performance. This result indicated that emotional intelligence can reduce the influence of job stress to job performance.

Rendimiento de semilla y sus componentes en frijol bajo condiciones de acidez y sequía terminal en el sur de Veracruz.

OpenAIRE

Morales Rivera, Aurelio

2014-01-01

Se estudió la variabilidad en rendimiento de semilla y sus componentes, y producción de biomasa aérea en un grupo de variedades de frijol de color negro, nativas del sur de Veracruz y un grupo del tipo “Flor de Mayo”, introducidas del Altiplano, y la región central de México, en condiciones de acidez edáfica y sequía terminal en el Municipio de Juan Rodríguez Clara, Veracruz, en el ciclo otoño-invierno 2012-13. Se incluyeron ocho variedades comerciales liberadas por el INIFAP, un criollo de M...

El teatro de los ciegos con la actuación de un prometeico bromista, un fenómeno engañoso, un prisma, un bolsillo y un pedazo de madera

OpenAIRE

Ashmore, Malcom

2009-01-01

Uno de los casos más notorios de error científico patente es la forma de radiación "no existente" conocida como rayos-n descubierta en la primavera de 1903 por el físico francés Blondlot. Después de una corta vida, aunque plena e interesante, los rayos-n fueron aniquilados, según reza la historia, en el otoño de 1904 por el físico americano Wood, quien, después de visitar el laboratorio de Blondlot en Nancy, publicó en la revista Nature un informe condenatorio de...

Excavaciones en "La Torruca" de Cancho Roano, partida de Cagancha, en Zalamea de la Serena, Badajoz

Directory of Open Access Journals (Sweden)

Juan MALUQUER DE MOTES

2009-10-01

Full Text Available El pasado otoño durante tres semanas se han realizado excavaciones en el túmulo conocido por «La Torruca» en la antigua finca de Cancho Roano, parcelada hace pocos años al constituirse el pueblo de Docenario. Las abundantes cenizas, carbones y cerámica, que aparecían al labrar el túmulo y, la presencia de paredes de adobe casi a flor de tierra, hizo que fuera considerado un antiguo horno. Al parcelarse la finca, el túmulo fue dividido asimétricamente, correspondiendo la mitad mayor a D. Jerónimo Bueno Paredes.

Respuestas al calcio y molibdeno en pastos anuales basados en trébol subterráneo en la región extremeña

OpenAIRE

Jiménez Mozo, J.; Martínez Agulla, T.

2011-01-01

En los otoños de 1977 y 1978 se establecieron en Extremadura ocho ensayos sobre los principales tipos de suelos ácidos de interés pascícola de la región con el objeto de investigar las necesidades de molibdeno y calcio en praderas de secano basadas en trébol subterráneo.Las respuestas obtenidas al molibdeno han sido generales para cada uno de los parámetros medidos en cada uno de los tipos de suelos estudiados. En algunos casos la aplicación de calcio corrige la deficiencia de molibdeno, pero...

Asociación nodriza-protegida, diámetro y altura de cactáceas en relación a la altitud, en la quebrada huaje de la ciudad de puno, Perú

OpenAIRE

Dennis Xavier, Huisa Balcon; Universidad Nacional del Altiplano – Puno

2015-01-01

RESUMENEl estudio se realizó durante los meses de mayo a julio del 2014, con 5 muestreos en total, siendo en la estación otoño que en esta zona se caracteriza por la ausencia de lluvias y descenso en la temperatura, estos factores hacen que los cactus modifiquen su morfología haciendo variar su diámetro y altura, los objetivos fueron: (a) Determinar la asociación nodriza-protegida de las especies encontradas y (b) Determinar la relación de la altitud con la altura y el diámetro de las cactáce...

Air University Library Index to Military Periodicals. January - March 1994. Volume 45, Number 1

Science.gov (United States)

1994-03-01

33d) Avidea Oto !& in El Salvador. Marcos R. Mendez , Capt -pojcto Ary Gordon R. force aules *0 . - 1-0da hifs. Military Intelligence 20 no 4 -tcon. pr...Avn) ready -n integraed Army. Military Engineer 86 so 562 (Mar-Apr Weekly 21 no 9 (MarS5 󈨢): p2l-22 CAro L mbom .2dLL iflu. National 󈨢): p40-41 See...during El Salvador’s *94) ~ ~ ~ ~ 0 p1 SNC ader. Bernard Adeisberger. illus transition to pec.Marcos R. Mendez .’ft p1-15N tab. Army Tineess 4 no35(Mar

Zara: Imagen de marca internacional y debut en la venta online en Europa occidental

OpenAIRE

Martínez Caraballo, Noemí

2011-01-01

Objeto: Zara abrió en España, Francia, Alemania, Reino Unido, Italia y Portugal su tienda online en la campaña otoño/invierno 2010. Se trata de un paso estratégico importante, encuadrado en la búsqueda que el Grupo Inditex realiza diariamente para ofrecer el mejor servicio a los clientes en todo el mundo. El presente trabajo analiza la notoriedad de marca de Zara y las posibilidades que plantea Internet como herramienta de comunicación y como canal de distribución. Diseño/metodología: Se ...

Estrategias de migración del género Acrocephalus en la Península Ibérica

OpenAIRE

Andueza Osés, Miren

2014-01-01

El objetivo de esta tesis es profundizar en el conocimiento de las estrategias migratorias de las aves del género Acrocephalus, el carricero común A. scirpaceus y el carricerín común A. shoenobaenus, durante la migración de otoño en la Península Ibérica. Su estudio se aborda a dos niveles: por un lado, la organización espacial de la migración a nivel peninsular y por otro el comportamiento en las áreas de descanso. A nivel peninsular, se observa que los carriceros que pasaron por la zona oest...

Antonio León Ortega: Una Imaginería Concebida como Escultura.

OpenAIRE

Franco Romero, Alberto Germán

2017-01-01

La escultura se cruzó en mi camino cuando aún contaba apenas cinco años de edad. Fue una mañana de otoño del año 1975, cuando de la mano de mi abuelo, Domingo Franco, entré por primera vez en el estudio de un escultor.   Mis pocos años de vida me habían dado la posibilidad de conocer los entresijos que guarda el taller o estudio de un pintor, pues mi abuelo dedicó su vida a la miniatura sobre piel, según las...

Pozuelo de Alarcón, 1600-2000: De su venta a ciudad metropolitana

OpenAIRE

Morón García, María Esperanza; Otero Carvajal, Luis Enrique

2016-01-01

Reconstruir la evolución histórica de Pozuelo de Alarcón se encontraba con una primera dificultad de envergadura: la desaparición de prácticamente toda la documentación anterior a la guerra civil, consecuencia de la destrucción de la localidad durante la batalla de Madrid, al ser frente de guerra en el verano-otoño de 1936. El Ayuntamiento fue destruido fruto de la intensidad de los combates, y con él la documentación municipal. El segundo obstáculo, derivado del primero, tenía que ver con la...

Measurement for commercial exposives with SC-DSC test. Sangyoyo bakuhayaku no SC-DSC sokutei

Energy Technology Data Exchange (ETDEWEB)

Yabashi, H.; Wada, Y.; Hwang, D.; Akutsu, Y.; Tamura, M.; Yoshida, T. (The University of Tokyo, Tokyo (Japan). Faculty of Engineering); Matsuzawa, T. (Nippon Kayaku Co. Ltd., Tokyo (Japan))

1991-08-30

The sealed cell differential scanning calorimetry (SC-DSC) was sintroduced of commercial blasting explosives. As a series of testing the commercial blasting explosives in performance, an SC-DSC test was made to compare the critical detonability line with that resulting therefrom. From the result of SC-DSC measurement, the critical dilution rate was estimated of commercial blasting explosives to become without detonating propagation. As a result, all the explosives with exception of ANFO one were assumed to have a possibility of detonating propagation so that the ANFO explosive was known to be material, unable to exactly evaluate the detonability by the SC-DSC test. The explosion heat, then calculated by the REITP2 in order to assume how the reaction proceeded in the DSC cell, was compared with the reaction heat measured by the SC-DSC test. As a result, the calculated value was known to be almost equal to or slightly larger than the measured one. 15 refs., 4 figs., 2 tabs.

Oil soot measurement system of diesel engine; Diesel engine no oil sutsu sokutei sochi

Energy Technology Data Exchange (ETDEWEB)

Mizuno, Y; Moritsugu, M; Kato, N [Nippon Soken, Inc., Tokyo (Japan); Osaki, R [Denso Corp., Aichi (Japan)

1997-10-01

For use evaluate diesel engine in laboratory, we have developed a apparatus which can measure soot density in engine oil instantly and accurately. We have achieved accuracy of 0.03 wt% by employing the following; (1) utilize a ligh-reflecting oil soot sensor, (2) regurate the temperature and flow of the in-coming oil to be constant. 4 refs., 12 figs., 2 tabs.

Evaluation of additional biogeochemical impacts on mitigation pathways in an energy sytem integrated assessment model.

Science.gov (United States)

Dessens, O.

2017-12-01

Within the last IPCC AR5 a large and systematic sensitivity study around available technologies and timing of policies applied in IAMs to achieve the 2°C target has been conducted. However the simple climate representations included in IAMs are generally tuned to the results of ensemble means. This may result in hiding within the ensemble mean results possible challenging mitigation pathways for the economy or the technology future scenarios. This work provides new insights on the sensitivity of the socio-economic response to different climate factors under a 2°C climate change target in order to help guide future efforts to reduce uncertainty in the climate mitigation decisions. The main objective is to understand and bring new insights on how future global warming will affect the natural biochemical feedbacks on the climate system and what could be the consequences of these feedbacks on the anthropogenic emission pathways with a specific focus on the energy-economy system. It specifically focuses on three issues of the climate representation affecting the energy system transformation and GHG emissions pathways: 1- Impacts of the climate sensitivity (or TCR); 2- Impacts of warming on the radiative forcing (cloudiness,...); 3- Impacts of warming on the carbon cycle (carbon cycle feedback). We use the integrated assessment model TIAM-UCL to examine the mitigation pathways compatible with the 2C target depending on assumptions regarding the 3 issues of the climate representation introduced above. The following key conclusions drawn from this study are that mitigation to 2°C is still possible under strong climate sensitivity (TCR), strong carbon cycle amplification or positive radiative forcing feedback. However, this level of climate mitigation will require a significant transformation in the way we produce and consume energy. Carbon capture and sequestration on electricity generation, industry and biomass is part of the technology pool needed to achieve this level of decarbonisation. In extreme condition (positive correlation between the 3 issues discussed) the integrated assessment model TIAM-UCL creates pathways requiring additional negative emission technologies at the end of this century to keep temperature change well below 2°C.

Magnetic hysteresis effects in superconducting coplanar microwave resonators

Energy Technology Data Exchange (ETDEWEB)

Bothner, D.; Gaber, T.; Kemmler, M.; Gruenzweig, M.; Ferdinand, B.; Koelle, D.; Kleiner, R. [Universitaet Tuebingen (Germany); Wuensch, S.; Siegel, M. [Karlsruher Institut fuer Technologie (Germany); Mikheenko, P.; Johansen, T.H. [University of Oslo (Norway)

2013-07-01

We present experimental data regarding the impact of external magnetic fields on quality factor and resonance frequency of superconducting microwave resonators in a coplanar waveguide geometry. In particular we focus on the influence of magnetic history and show with the assistance of numerical calculations that the found hysteretic behaviour can be well understood with a highly inhomogeneous microwave current density in combination with established field penetration models for type-II superconducting thin films. Furthermore we have used magneto-optical imaging techniques to check the field distribution which we have assumed in our calculations. Finally, we demonstrate that and how the observed hysteretic behaviour can be used to optimize and tune the resonator performance for possible hybrid quantum sytems in magnetic fields.

Investigation research on autonomous responsive materials; Jiritsu oto zairyo ni kansuru chosa kenkyu

Energy Technology Data Exchange (ETDEWEB)

NONE

1996-03-01

A survey was made on autonomous responsive materials as a new material which reversibly change molecular structures and the aggregation state according to external stimuli. Autonomous responsive materials imitate environmental responsibility in the living organism system and have sensing, control and active functions for external stimuli. The materials are highly efficient and environmentally friendly. In biomimetic materials for soft actuators, drastic changes by temperature of elastic modulus of water-swollen hydrogel are used to the motion. In order to molecularly design stimulus-responsible polymer gel, studied are the relation between the micro structure and stimulus responsibility, dynamic correlation between the micro structure and the macro structure, etc. In the biomedical field, new cure and diagnosis using innovative materials are expected, and the application of autonomous responsive materials to the field is studied. For example, using hydrogel responding the temperature and the surface and controlling by temperature the interaction with components of the organism such as protein and cells, drug delivery in the organism is optimized. Also studied is the application of hydrophilic/hydrophobic changes by temperature to the chromatography. 215 refs., 47 figs., 11 tabs.

An Overview of Otorhinolaryngeal Problems in Geriatrics

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Girija Shankar Mohanta

2018-06-01

Full Text Available Summary: Background: The increase of geriatric population, as well as their age-related problems, is of great concern for the society and for the governments all over the world and also in India. The main objectives were to overview and find the prevalence of Oto-rhino-laryngological problems in the geriatric population. Method: A prospective study of geriatric patients was undertaken in ENT & HNS Department, S.C.B Medical College & Hospital, Cuttack, India, from November 2014 to August 2016.Inclusion criteria –The patients of age 60 yrs & above who attended ENT outpatient department were studied. Among 3563 patients studied, 363 patients were admitted. The patients were segregated according to sex (male/female, ages (60–64 yr group, 65–69 yr group, 70 yr & above, disease ratio, and prevalence of diseases, associated co-morbidities, and socio-economic aspects. Results: Total patients studied were 3563. The otological problems were being prevalent in geriatrics among study population (51.77% in which presbycusis was the highest with 17.71% of total and 34.21% of otological problems. The problems related to nose were 13.03%, among which epistaxis was 4.98% of total and 37.60% of nasal problems. The neck and throat problems were 35.20%. The problems were more in males (63.65% than in females (36.35%. Conclusion: The hearing loss is the most prevalent diagnosis amongst all otologic problems and epistaxis amongst nasal symptoms. The emergence of head & neck cancers among the geriatric population is a great concern in a developing country like India. Keywords: Oto-rhino-laryngological problems, geriatric populations

AMTB CHILE. INFORME TÉCNICO INACAP TEMUCO 2008: MOTIVACIÓN Y NOTAS EN INGLÉS

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María Soledad Soza Roldán

2013-01-01

Full Text Available La siguiente investigación trata la motivación como factor que impacta en el aprendizaje de inglés (notas en estudiantes de pregrado de Inacap Temuco, Región de la Araucanía, Chile. Para este fin, se aplicó el cuestionario AMTB (Test de Actitud y Motivación a una muestra de 305 estudiantes de carreras técnicas en Inacap Temuco (2008 para determinar el nivel de motivación según 12 variables del modelo socio-educacional de R C Gardner que sirve de paradigma en SLA (adquisición de un segundo idioma. Los hallazgos indican que la motivación explica el 41% de la nota; la ansiedad, deseo por aprender Inglés, intensidad de la motivación, el estímulo de los padres, y las actitudes frente al proceso de enseñanza tienen correlación significativa con las notas (95% de confianza. Se realizó un análisis descriptivo de las notas en Inglés desde otoño /primavera 2002 a otoño/primavera 2007 por nivel y promedio total (nivel I a VII. Se determinó que nivel promedio general de motivación es de un moderado 4.3 (escala Likert de 1 a 6 pero se dispara a 5.9 en el nivel VII permitiendo apreciar una correlación serial positiva desde el nivel I al VII. Los hallazgos son similares a los descubiertos por Gardner en Canadá (1960 y en 4 países europeos (1985. Los hallazgos fueron enviados a Gardner cuyos comentarios se detallan en el Informe.

Dedicated training in adult education among otolaryngology faculty.

Science.gov (United States)

McMains, Kevin C; Peel, Jennifer

2014-12-01

Most faculty members undergo ad hoc training in education. This survey was developed to assess the prevalence and type of dedicated training in education received by academic otolaryngology-head and neck surgery (OTO-HNS) faculty in the United States. Survey. An 11-item survey was developed to assess the prevalence of dedicated instruction in education theory and practice, the types of instruction received, and the barriers to receiving instruction. The survey was sent to all OTO-HNS program directors for distribution among their respective faculty. A total of 216 responses were received. Seventy respondents (32.7%) serve as program director, associate program director, or assistant program director in their respective programs. Forty-six respondents (21.8%) had received dedicated training in education. Of the respondents who described the type of education training received, 48.7% participated in didactics/seminar, 35.9% in degree/certificate programs, 10.3% in multimodality training, and 5.1% online training. Among the barriers encountered to participation in instruction in education, time/productivity pressures was the most commonly cited reason (60.2%), followed by not knowing about the opportunity to receive training (36.4%), lack of departmental support (26.2%), lack of available training (22.3%), and the perception that such training would not be useful (7.8%). Presently, only a minority of surveyed academic otolaryngologists in the United States have received any dedicated instruction in the theory and practice of education. Personal, departmental, and institutional barriers exist in many practice environments that hinder otolaryngology faculty from participating in education training. N/A. © 2014 The American Laryngological, Rhinological and Otological Society, Inc.

MULTI-LINK SUPPORT FOR IPV6 NETWORKS

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Cüneyt Akınlar

2016-03-01

Full Text Available IPv6 ağ konfigürasyonu için genel pratik ağ üzerindeki her fiziksel bağ için ayrı bir altağ öneki atamaktır. Bu uygulama hem birden fazla ağ öneki gereksimine sebep olur, hem de elle yönetim ve konfigürasyon gerektirir. Buna alternatif konfigürasyon yöntemi bütün bağları IPv6 seviyesinde bir köprü ile bağlamak ve bu sayede bütün ağ için tek bir ağ öneki ataması yapmaktır. Bu metoda çoklu-bağ öneki ismi verilir. Bu makalede IPv6 ağları için çoklu-bağ öneki oto-konfigürasyonu konusu ele alınmıştır. Öncelikle tek yönlendiricili ağlar için coklu-bağ desteğinin nasıl gerçekleneceği tarif edilmiş, daha sonra bu yöntemin çok yönlendiricili ağlara nasıl uygulanacağı anlatılmıştır. Önerilen oto-konfigürasyon yöntemleri standart alıcı otokonfigürasyon protokollerini tamamlamakta ve IPv6 ağlarının yaygın kurulum ve kullanımları için gerekli tak-çalıştır metodolojine olanak sağlamaktadır

Cardiac and renal dysfunction is associated with progressive hearing loss in patients with Fabry disease.

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Maria Köping

Full Text Available Fabry disease (FD is an X-linked recessive hereditary lysosomal storage disorder which results in the accumulation of globotriaosylceramid (Gb3 in tissues of kidney and heart as well as central and peripheral nervous system. Besides prominent renal and cardiac organ involvement, cochlear symptoms like high-frequency hearing loss and tinnitus are frequently found with yet no comprehensive data available in the literature.To examine hearing loss in patients with FD depending on cardiac and renal function.Single-center study with 68 FD patients enrolled between 2012 and 2016 at the Department of Oto-Rhino-Laryngology, Plastic, Aesthetic and Reconstructive Head and Neck Surgery of the University of Würzburg. Every subject underwent an oto-rhino-laryngological examination as well as behavioral, electrophysiological and electroacoustical audiological testing. High-frequency thresholds were evaluated by using a modified PTA6 (0.5, 1, 2, 4, 6, 8 and HF-PTA (6, 8 kHz. Renal function was measured by eGFR, cardiac impairment was graduated by NYHA class.Sensorineural hearing loss was detected in 58.8% of the cohort, which occurred typically in sudden episodes and affected especially high frequencies. Hearing loss is asymmetric, beginning unilaterally and affecting the contralateral ear later. Tinnitus was reported by 41.2%. Renal and cardiac impairment influenced the severity of hearing loss (p < 0.05.High frequency hearing loss is a common problem in patients with FD. Although not life-threatening, it can seriously reduce quality of life and should be taken into account in diagnosis and therapy. Optimized extensive hearing assessment including higher frequency thresholds should be used.

Stability and Control Analysis of V/STOL Type B Aircraft.

Science.gov (United States)

1979-03-31

control deficiency is larger at higher angles of attack. For example at 100 kt (51 m/s), the maximum sideslip is re- duced 2 deg, or 13%, by increasing... DEFICIENCY AREA L O ESIRED ENVELOPEi ( JI~AX SI lO KTI REACTION\\ TTLJJETS I o-TO J %%PLUS AIlERONS)S, E3" :-o e- AILERONS 0 10 20 30 40 so so 70 80 go...DISCRETE-TIME OPTIMAL CONTROL LAW GAINS [(0-I)r1 [C1 atC 2 1 jAtK1 & tK2 1 H D P! CONTROL LAW IN INCREMENTAL FORM ERROR DYNAMICS: Ak = Aak - Cl( ak

Gracia, misterio y nostalgia de Rafael Alberti

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Eduardo Carranza

1967-12-01

Full Text Available Existen algunos poemas, a veces unos cuantos versos, dotados de una extraordinaria capacidad germinal y suscitadora. De los inmortales eneasílabos de la Canción de otoño en primavera descienden multitud de elegías contemporáneas. Y al releer ahora la obra juvenil de Rafael Alberti, -su Marinero en tierra- tan vivaz, tan optimista y garbosa, tan pintada de azul marino, de rojo amoroso y de verde eglógico, hemos recordado un viejo y precioso romancillo de Juan Ramón Jiménez en el que parecen estar ya implícitas algunas de las mejores claridades albertianas.

The role of random nanostructures for the omnidirectional anti-reflection properties of the glasswing butterfly

Science.gov (United States)

Siddique, Radwanul Hasan; Gomard, Guillaume; Hölscher, Hendrik

2015-04-01

The glasswing butterfly (Greta oto) has, as its name suggests, transparent wings with remarkable low haze and reflectance over the whole visible spectral range even for large view angles of 80°. This omnidirectional anti-reflection behaviour is caused by small nanopillars covering the transparent regions of its wings. In difference to other anti-reflection coatings found in nature, these pillars are irregularly arranged and feature a random height and width distribution. Here we simulate the optical properties with the effective medium theory and transfer matrix method and show that the random height distribution of pillars significantly reduces the reflection not only for normal incidence but also for high view angles.

Safety issues relating to the design of fusion power facilities

International Nuclear Information System (INIS)

Stasko, R.R.; Wong, K.Y.; Russell, S.B.

1986-06-01

In order to make fusion power a viable future source of energy, it will be necessary to ensure that the cost of power for fusion electric generation is competitive with advanced fission concepts. In addition, fusion power will have to live up to its original promise of being a more radiologically benign technology than fission, and be able to demonstrate excellent operational safety performance. These two requirements are interrelated, since the selection of an appropriate safety philosophy early in the design phase could greatly reduce or eliminate the capital costs of elaborate safety related and protective sytems. This paper will briefly overview a few of the key safety issues presently recognized as critical to the ultimate achievement of licensable, environmentally safe and socially acceptable fusion power facilities. 12 refs

Development of windows based software to analyze fluorescence decay with time-correlated single photon counting (TCSPC) setup

International Nuclear Information System (INIS)

Mallick, M.B.; Ravindranath, S.V.G.; Das, N.C.

2002-07-01

A VUV spectroscopic facility for studies in photophysics and photochemistry is being set up at INDUS-I synchrotron source, CAT, Indore. For this purpose, a data acquisition system based on time-correlated single photon counting method is being developed for fluorescence lifetime measurement. To estimate fluorescence lifetime from the data collected with this sytem, a Windows based program has been developed using Visual Basic 5.0. It uses instrument response function (IRF) and observed decay curve and estimates parameters of single exponential decay by least square analysis and Marquardt method as convergence mechanism. Estimation of parameters was performed using data collected with a commercial setup. Goodness of fit was judged by evaluating χR 2 , weighted residuals and autocorrelation function. Performance is compared with two commercial software packages and found to be satisfactory. (author)

Space Infrared Telescope Facility (SIRTF) science instruments

International Nuclear Information System (INIS)

Ramos, R.; Hing, S.M.; Leidich, C.A.; Fazio, G.; Houck, J.R.

1989-01-01

Concepts of scientific instruments designed to perform infrared astronomical tasks such as imaging, photometry, and spectroscopy are discussed as part of the Space Infrared Telescope Facility (SIRTF) project under definition study at NASA/Ames Research Center. The instruments are: the multiband imaging photometer, the infrared array camera, and the infrared spectograph. SIRTF, a cryogenically cooled infrared telescope in the 1-meter range and wavelengths as short as 2.5 microns carrying multiple instruments with high sensitivity and low background performance, provides the capability to carry out basic astronomical investigations such as deep search for very distant protogalaxies, quasi-stellar objects, and missing mass; infrared emission from galaxies; star formation and the interstellar medium; and the composition and structure of the atmospheres of the outer planets in the solar sytem. 8 refs

Experimental Investigations of Decentralised Control Design for The Stabilisation of Rotor-Gas Bearings

DEFF Research Database (Denmark)

Theisen, Lukas Roy Svane; Galeazzi, Roberto; Niemann, Hans Henrik

2015-01-01

frequencies. Active lubrication of the journal during operations could enhance the damping and stabilisation characteristics of the sytems, and this could be achieved by means of stabilising controllers. This paper investigates the feasibility of using reduced order models obtained through Grey......-Box identification for the design of stabilising controllers, capable of enabling the active lubrication of the journal. The root locus analysis shows that two different control solutions are feasible for the dampening of the first two eigenfrequencies of the rotor-gas bearing in the horizontal and vertical...... directions. Hardening and softening P-lead controllers are designed based on the models experimentally identified, and salient features of both controllers are discussed. Both controllers are implemented and validated on the physical test rig. Experimental results confirm the validity of the proposed...

A reliable bioassay procedure to evaluate per os toxicity of Bacillus thuringiensis strains against the rice delphacid, Tagosodes orizicolus (Homoptera: Delphacidae

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Rebeca Mora

2007-06-01

Full Text Available A reliable bioassay procedure was developed to test ingested Bacillus thuringiensis (Bt toxins on the rice delphacid Tagosodes orizicolus. Initially, several colonies were established under greenhouse conditions, using rice plants to nurture the insect. For the bioassay, an in vitro feeding system was developed for third to fourth instar nymphs. Insects were fed through Parafilm membranes on sugar (10 % sucrose and honey bee (1:48 vol/vol solutions, observing a natural mortality of 10-15 % and 0-5 %, respectively. Results were reproducible under controlled conditions during the assay (18±0.1 °C at night and 28±0.1 °C during the day, 80 % RH and a 12:12 day:light photoperiod. In addition, natural mortality was quantified on insect colonies, collected from three different geographic areas of Costa Rica, with no significant differences between colonies under controlled conditions. Finally, bioassays were performed to evaluate the toxicity of a Bt collection on T. orizicolus. A preliminary sample of twenty-seven Bt strains was evaluated on coarse bioassays using three loops of sporulated colonies in 9 ml of liquid diet, the strains that exhibited higher percentages of T. orizicolus mortality were further analyzed in bioassays using lyophilized spores and crystals (1 mg/ml. As a result, strains 26-O-to, 40-X-m, 43S-d and 23-O-to isolated from homopteran insects showed mortalities of 74, 96, 44 and 82 % respectively while HD-137, HD-1 and Bti showed 19, 83 and 95 % mortalities. Controls showed mortalities between 0 and 10 % in all bioassays. This is the first report of a reliable bioassay procedure to evaluate per os toxicity for a homopteran species using Bacillus thuringiensis strains. Rev. Biol. Trop. 55 (2: 373-383. Epub 2007 June, 29.Se desarrolló una metodología de bioensayo para evaluar toxinas de Bacillus thuringiensis (Bt ingeridas por Tagosodes orizicolus, plaga del arroz y vector del virus de la hoja blanca. Se establecieron colonias

sigma54-Mediated control of the mannose phosphotransferase sytem in Lactobacillus plantarum impacts on carbohydrate metabolism

NARCIS (Netherlands)

Stevens, M.J.A.; Molenaar, D.; Jong, de A.; Vos, de W.M.; Kleerebezem, M.

2010-01-01

Sigma factors direct specific binding of the bacterial RNA polymerase to the promoter. Here we present the elucidation of the sigma(54 ) regulon in Lactobacillus plantarum. A sequence-based regulon prediction of sigma(54)-dependent promoters revealed an operon encoding a mannose phosphotransferase

sigma(54)-mediated control of the mannose phosphotransferase sytem in Lactobacillus plantarum impacts on carbohydrate metabolism

NARCIS (Netherlands)

Stevens, Marc J. A.; Molenaar, Douwe; de Jong, Anne; De Vos, Willem M.; Kleerebezem, Michiel

Sigma factors direct specific binding of the bacterial RNA polymerase to the promoter. Here we present the elucidation of the sigma(54) regulon in Lactobacillus plantarum. A sequence-based regulon prediction of sigma(54)-dependent promoters revealed an operon encoding a mannose phosphotransferase

Sytemic lupus erythematosus presenting with protein losing enteropathy in a resource limited centre: a case report

Directory of Open Access Journals (Sweden)

Ratnayake Eranda C

2012-01-01

Full Text Available Abstract Introduction Systemic lupus erythematosus is a disease which may initially present with varying symptoms, most commonly a photosensitive rash and arthritis. Protein losing enteropathy is a recognized but rare presenting manifestation. Diagnosing protein losing enteropathy in resource limited centres is challenging but possible through the exclusion of other possible causes of hypoalbunaemia. Case Presentation We report a case of protein losing gastroenteropathy secondary to intestinal lymphangiectasia as the initial manifestation of systemic lupus erythematosus in a 57 year old Sri Lankan (South Asian male patient. The diagnosis was made by the exclusion of other causes of hypoalbuminaemia as the gold standard investigations for protein losing enteropathy were not available at this centre. Conclusions Protein losing enteropathy is a diagnosis of exclusion in resource limited centres in the world. Systemic lupus erythematosus should be considered in the differential diagnosis of protein losing enteropathy. Intestinal lymphangiectasia should also be recognized as a possible pathophysiological mechanism.

Considerations over the floating speed of a particle in vacuum pneumatic conveying sytems in flour milling

Directory of Open Access Journals (Sweden)

Tanase Tanase

2016-06-01

Full Text Available The present paper is a theoretical study aiming for to assess the influence of the different factors such as deviation from the spherical form of a particle, specific mass load of the pneumatic conveying pipe and the report between the particle diameter and the pipe diameter, over the floating speed of a particle. For a non-spherical particle, the Magnus force is affecting the floating speed of the given particle by increasing or decreasing it. The equation deducted within the present study, describes the movement of a particle or a fluid swirl under the resultant force with emphasis on the evaluation of the nature and magnitude of the Magnus force. The same Magnus Force explains the movement of the swirls in fluids, as for the wind swirls (hurricane or water swirls. The next part of the study relate the report between the particle diameter and the pipe diameter as well as the specific loads of the pipe, to the same floating speed. A differentiation in denominating the floating speed is proposed as well as that for the non-spherical particle the floating speed should be a domain, rather than a single value.

Characterization of earthquake fault by borehole experiments; Koseinai sokutei ni yoru jishin danso no kenshutsu

Energy Technology Data Exchange (ETDEWEB)

Ito, H; Miyazaki, T; Nishizawa, O; Kuwahara, Y; Kiguchi, T [Geological Survey of Japan, Tsukuba (Japan)

1996-05-01

A borehole was excavated to penetrate the Nojima fault at the Hirabayashi area, to investigate the underground structures of the fault by observation of the cores and well logging. The borehole was excavated from 74.6m east of the fault surface. Soil is of granodiorite from the surface, and fault clay at a depth in a range from 624.1 to 625.1m. Observation of the cores, collected almost continuously, indicates that the fault fracture zone expands in a depth range from 557 to 713.05m. The well logging experiments are natural potential, resistivity, density, gamma ray, neutron, borehole diameter, microresistivity and temperature. They are also for DSI- and FMI-observation, after expansion of the borehole. The well logging results indicate that resistivity, density and elastic wave velocity decrease as distance from fault clay increases, which well corresponds to the soil conditions. The BHTV and FMI analyses clearly detect the fault clay demarcations, and show that elastic wave velocity and BHTV results differ at above and below the fault. 3 refs., 3 figs.

Continuous gravity monitoring of geothermal activity; Renzoku juryoku sokutei ni yoru chinetsu katsudo no monitoring

Energy Technology Data Exchange (ETDEWEB)

Sugihara, M [Geological Survey of Japan, Tsukuba (Japan)

1997-05-27

To clarify the geothermal activity in the geothermal fields in New Zealand, gravity monitoring was conducted using SCINTREX automatic gravimeter. The measurements were conducted between the end of January and the beginning of March, 1996. Firstly, continuous monitoring was conducted at the standard point for about ten days, and the tidal components were estimated from the records. After that, continuous monitoring was conducted at Waimangu area for several days. Continuous monitoring was repeated at the standard point, again. At the Waimangu area, three times of changes in the pulse-shape amplitude of 0.01 mgal having a width of several hours were observed. For the SCINTREX gravimeter, the inclination of gravimeter is also recorded in addition to the change of gravity. During the monitoring, the gravimeter was also inclined with the changes of gravity. This inclination was useful not only for the correction of gravity measured, but also for evaluating the ground fluctuation due to the underground pressure source. It is likely that the continuous gravity monitoring is the relatively conventional technique which is effective for prospecting the change of geothermal reservoir. 2 figs.

Development of automatic high-concentration boron measurement technique; Konodo hoso jido sokutei gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Maeda, T.; Honda, S.; Ito, A. [Kyushu Electric Power Co. Inc., Fukuoka (Japan)

1997-03-01

The technology that can automatically measure the boron concentration in boric acid water was developed. A high-concentration boric acid solution must be held at a high temperature to prevent the deposition. Skill and precision ({plus_minus}0.2 to 0.3% for 10 to 2500 ppm as boron concentration, and {plus_minus}2 to 3% for 2500 to 25,000 ppm) are required to analyze the boric acid solution manually. In theory, the boron concentration in a wide range can be measured, and boron has a constant-temperature function. A density hydrometer method that facilitates the treatment and calibration in high precision and at low cost was chosen. The vibration period generated when vibration is given to the solution specimen put in a U-tube is higher as the density is lower. On the basis of this theory, the density of a specimen can be obtained according to the relation with the same data of the known-concentration boric acid water. The high-concentration boric acid water that cannot be measured by the existing boron densitometer can be measured directly. It can also be measured in a low-concentration area. The technique can be used in a laboratory as the simplified method that is replaced by the current manual analysis. The reduction effect of analytical chemical`s waste liquid can also be expected. In the electric power industry, automated equipment is required for high efficiency and labor saving. 13 figs., 3 tabs.

Impact of usage of personal music systems on oto-acoustic emissions among medical students

Directory of Open Access Journals (Sweden)

Prasanth G Narahari

2017-01-01

Full Text Available Background: Intact hearing is essential for medical students and physicians for communicating with patients and appreciating internal sounds with a stethoscope. With the increased use of (PMSs, they are exposed to high sound levels and are at a risk of developing hearing loss. The effect of long term personal music system (PMS usage on auditory sensitivity has been well established. Our study has reported the immediate and short term effect of PMS usage on hearing especially among medical professionals. Objective: To assess the effect of short term PMS usage on distortion product otoacoustic emissions (DPOAE among medical professionals. Materials and Method: 34 medical students within the age range of 17–22 years who were regular users of PMS participated in the study. All participants had hearing thresholds <15 dBHL at audiometric octave frequencies. Baseline DPOAEs were measured in all participants after 18 h of non-usage of PMS. One week later DPOAEs were again measured after two hours of continuous listening to PMS. DPOAEs were measured within the frequency range of 2 to 12 kHz with a resolution of 12 points per octave. Output sound pressure level of the PMS of each participant was measured in HA-1 coupler and it was converted to free field SPL using the transformations of RECD and REUG. Results: Paired sample t test was used to investigate the main effect of short term music listening on DPOAE amplitudes. Analysis revealed no significant main effect of music listening on DPOAE amplitudes at the octave frequencies between 2 to 4 KHz (t67 = −1.02, P = 0.31 and 4 to 8 KHz (t67 = 0.24, P = 0.81. However, there was a small but statistically significant reduction in DPOAE amplitude (t67 = 2.10, P = 0.04 in the frequency range of 9 to 12 kHz following short term usage of PMS. The mean output sound pressure level of the PMS was 98.29. Conclusion: Short term exposure to music affects the DPOAE amplitude at high frequencies and this serves as an early indicator for noise induced hearing loss (NIHL. Analysis of output sound pressure level suggests that the PMSs of the participants have the capability to induce hearing loss if the individual listened to it at the maximum volume setting. Hence, the medical professionals need to be cautious while using PMS.

Dieta, selectividad y solapamiento trófico entre las tallas del pez blanco Menidia humboldtiana (Atheriniformes: Atherinopsidae en el embalse Tiacaque, México

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Regina Sánchez

2013-06-01

Full Text Available Menidia humboldtiana es una especie nativa muy apreciada por su delicado sabor. Se determinó el espectro trófico, selectividad y solapamiento trófico de ésta, durante 1995 (épocas del año, se obtuvieron muestras de zooplancton e identificaron a nivel genérico. Los peces capturados se agruparon en intervalos de longitud estándar para cada época. Se analizaron los contenidos estomacales (método volumétrico, Laevastu, selectividad (Chesson y solapamiento trófico (Morisita. Se registraron 14 géneros de zooplancton; Bosmina el más abundante (29 625ind/10L seguido por Cyclops (9 496ind/10L ambos en primavera. Los peces pequeños (1-4.9cm consumen a Cyclops en altos porcentajes en primavera e invierno, 61.24-69.82% respectivamente. Ceriodaphnia es consumida por peces de 3-10.9cm y de 13-14.9cm con 72.41-95.5% en verano; en otoño las tallas pequeñas ingieren a Mastigodiaptomus y Ceriodaphnia; Daphnia y Bosmina por peces de 5-8.9cm y los más grandes (9-14.9cm a Ceriodaphnia. M. humboldtiana realiza una depredación selectiva por Ceriodaphnia, Daphnia, Mastigodiaptomus, Bosmina y Cyclops. El solapamiento trófico fue muy marcado entre todas las tallas en primavera, otoño e invierno, a diferencia en verano los peces de 1-2.9 y 11-12.9cm no registraron un solapamiento con otros intervalos de longitud. M. humboldtiana es una especie zooplanctófaga, que realiza una depredación selectiva y un marcado solapamiento trófico entre los intervalos de longitud.

Annual report of Research Center for Nuclear Physics, Osaka University. 1997 (April 1, 1997-March 31, 1998)

International Nuclear Information System (INIS)

Toki, Hiroshi; Sakai, Tsutomu; Hirata, Maiko

1998-01-01

Research Center for Nuclear Physics (RCNP) is the national center of nuclear physics in Japan, which is a laboratory complex of the cyclotron laboratory, the laser electron photon laboratory, and the Oto underground laboratory and aims at studies of nucleon meson nuclear physics and quark lepton nuclear physics. In the cyclotron laboratory, AVF/Ring cyclotron complex provides high quality beams of polarized protons and light ions in the medium energy region. Experimental studies have extensively been carried out on nucleon meson nuclear physics. The subjects studied include the nucleon mass and the nuclear interaction in nuclear medium, nuclear spin isospin motions and nuclear responses for neutrinos, pions and isobars interactions, medium energy nuclear reactions of light heavy ions, medical applications, and so on. The Oto Cosmo Observatory is the low background underground laboratory for lepton nuclear physics, and is used for applied science. The laser photon laboratory is used to study quark nuclear physics by means of the multi-GeV laser electron photon beam, and will be ready in the academic year of 1998 to be used for studying quark gluon structures and low-energy QCD. The accelerator researches and developments are being carried out for the new future plan of the multi-GeV electron proton collider. Theoretical works on nuclear particle physics have extensively been made by the RCNP theory groups and laser groups. Computer, network and DAQ systems, including the supercomputer system and the new generation network, have been developed. In this report, 25 reports of nuclear physics, 8 reports of lepton nuclear physics, 1 report of quark nuclear physics, and 2 reports of interdisciplinary physics are described in the experimental nuclear physics. And, 16 reports of quark nuclear physics, 9 reports of intermediate nuclear physics, 19 reports of nuclear physics, and 1 report of miscellaneous are described in the theoretical physics. (G.K.)

Comportamiento productivo del pasto ovillo (Dactylis glomerata L. en respuesta al pastoreo.

Directory of Open Access Journals (Sweden)

Filogonio Jesús Hernández-Guzmán

2015-01-01

Full Text Available El objetivo del estudio fue determinar los patrones de variación en los componentes de la productividad forrajera del pasto ovillo (Dactylis glomerata L. bajo pastoreo. En Montecillo, Texcoco, Estado de México, México, de junio 2005 a junio 2006, se estudió la combinación de tres frecuencias (21, 28 y 35 días y dos intensidades (5-7 y 9-11 cm en el forraje residual de pastoreo, en un diseño de bloques al azar con tres repeticiones. Se evaluó el rendimiento anual y la distribución estacional de forraje, tasa de crecimiento, composición botánica y morfológica y densidad de tallos. La frecuencia de pastoreo de 35 días superó a las de 21 y 28 (P<0,05 en el rendimiento anual, durante primavera y verano. Independientemente de la frecuencia e intensidad de pastoreo, el rendimiento estacional se distribuyó de la siguiente forma: 49,5, 31,6, 14,1 y 4,8% para primavera, verano, invierno y otoño, respectivamente. La mayor tasa de crecimiento se registró en primavera al pastorear cada 35 días y la menor en otoño al pastorear cada 28 días (P<0,01. Durante invierno se dio mayor presencia de otras especies, siendo el pastoreo cada veintiún días a una intensidad ligera el que originó un aporte al rendimiento de otras especies del 60%. No se presentaron efectos de intensidad ni de frecuencia de pastoreo en la densidad de tallos. El mayor rendimiento y tasa de crecimiento se obtuvieron al pastorear cada 35 días.

Alimentación de dos especies de anfibios (Anura: Hylidae en la estación de bajas temperaturas y su relación con la acumulación de energía en Santa Fe, Argentina

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Carolina Elizabet Antoniazzi

2013-06-01

Full Text Available Existe escasa información sobre la alimentación de las especies de anfibios activas durante la estación fría o las estrategias de utilización de reservas lipídicas como fuente de energía durante el periodo de bajas temperaturas. Por lo tanto, se analizaron las estrategias de obtención y acumulación energética durante la estación de bajas temperaturas en un anfibio que se reproduce principalmente en otoño-invierno, Hypsiboas pulchellus (Hp, y uno que lo hace en primavera-verano, Dendropsophus nanus (Dn. Para ello se analizó la alimentación de ambas especies y se utilizó el peso de los cuerpos grasos (CG como indicador del desarrollo de las reservas energéticas. Si bien se encontró una elevada similitud en la dieta entre las especies, esto no implicó la ausencia de diferencias en las estrategias de obtención energética entre ellas. El bajo índice de vacuidad gastrointestinal de Hp, acompañado de CG poco desarrollados, permite señalar que, para sostener la elevada demanda energética de la actividad reproductiva concentrada en el otoño-invierno, esta especie continúa alimentándose aún en temperaturas bajas. Por otro lado, el índice de vacuidad de Dn fue mayor al de Hp, mientras que sus CG se encontraron bien desarrollados, por lo que esta especie utilizaría en mayor medida sus reservas lipídicas como fuente de energía para transitar el período de bajas temperaturas y llegar en buenas condiciones a la temporada reproductiva en la próxima primavera-verano.

Caracterización del inicio de la diabetes mellitus tipo 1 en menores de 18 años

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Yan González Ramos

2016-12-01

Full Text Available Fundamento: la diabetes mellitus tipo 1 es la enfermedad crónico endocrinológica más frecuente en la edad pediátrica y la segunda enfermedad crónica en la infancia después del asma bronquial, en los países desarrollados. Objetivo: identificar los aspectos epidemiológicos en el inicio de la diabetes mellitus tipo 1 en menores de 18 años en la provincia de Cienfuegos en el periodo 1997- octubre 2015. Métodos: se realizó un estudio descriptivo retrospectivo en los pacientes menores de 18 años, diagnosticados con diabetes mellitus tipo 1 en el periodo mencionado. Las variables utilizadas fueron: año y edad del inicio, sexo, color de la piel y municipio de procedencia. Los resultados se presentaron en tablas de frecuencias y porcentajes. Resultados: el porcentaje de pacientes del sexo masculino y femenino fue bastante similar con un leve predominio del masculino (53,5 %. El grupo 5-9 años presentó el mayor número de pacientes (35 casos pero sin diferencias significativas con el de 10-14 años (34 casos. El color de piel blanca predominó con el 75,7 %. El mayor número de casos se mostraron en los meses de otoño con 30. Los municipios de mayor incidencia fueron Cienfuegos con 40 y Cumanayagua con 16 casos respectivamente. Conclusiones: se ha producido un aumento de la incidencia en los últimos años con un leve predominio del sexo masculino y el grupo de 5-9 años. Predominó la raza blanca. El mayor número del inicio ocurrió en otoño y en el municipio de Cienfuegos.

Respiratory manifestations in 38 patients with Alström syndrome.

Science.gov (United States)

Boerwinkle, Caroline; Marshall, Jan D; Bryant, Joy; Gahl, William A; Olivier, Kenneth N; Gunay-Aygun, Meral

2017-04-01

Alström syndrome (AS) is a rare, multi-system condition characterized by retinal degeneration, sensorineural hearing loss, obesity, insulin-resistant diabetes, hypertriglyceridemia, cardiomyopathy, hepatorenal disease, and recurrent respiratory infections. It belongs to a group of genetic disorders known as primary ciliopathies, which includes autosomal dominant and recessive polycystic kidney diseases, as well as Joubert and Bardet-Biedl syndromes. Prior studies have suggested phenotypic overlap between primary ciliopathies affecting the non-motile, sensory cilia, and primary ciliary dyskinesia (PCD), a motile ciliopathy characterized by respiratory tract disease. We describe the burden of oto-sino-pulmonary disease in 38 individuals with AS and examines the degree of clinical overlap between PCD and AS. Evaluation at the NIH Clinical Center included clinical examination, chest imaging, and clinical history surveys, as well as measurement of nasal nitric oxide (nNO) in nine patients. Recurrent otitis media was ubiquitous in the AS cohort (92%) with 50% requiring pressure equalization tube placement. A history of bronchitis/pneumonia and sinusitis was reported in 61% and 50% of individuals, respectively. PCD-characterizing symptoms (laterality defects, unexplained neonatal respiratory distress, year-round nasal congestion, and wet cough) were far less prevalent in the AS cohort compared to PCD, and the average nNO production in the AS cohort was 232 ± 57.1 nl/min compared to a cut-off of <77 nl/min for PCD. These data suggest that the oto-sino-respiratory complications in AS are prominent enough to warrant increased clinical attention, but significantly impaired respiratory cilia function as seen in PCD is unlikely in AS. (www.clinicaltrials.gov, trial NCT00068224) Pediatr Pulmonol. 2017;52:487-493. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

An overview of hereditary hearing loss.

Science.gov (United States)

Bayazit, Yildirim A; Yilmaz, Metin

2006-01-01

Understanding the genetic basis of hearing loss is important because almost 50% of profound hearing loss are caused by genetic factors and more than 120 independent genes have been identified. In this review, after a brief explanation of some genetic terms (allele, heterozygosis, homozygosis, polymorphism, genotype and phenotype), classification of genetic hearing loss (syndromic versus nonsyndromic, and recessive dominant, X-linked and mitochondrial) was performed. Some of the most common syndromes (Usher, Pendred, Jervell and Lange-Nielsen, Waardenburg, branchio-oto-renal, Stickler, Treacher Collins and Alport syndromes, biotinidase deficiency and Norrie disease) causing genetic hearing loss were also explained briefly. The genes involved in hearing loss and genetic heterogeneity were presented. Copyright 2006 S. Karger AG, Basel.

Study of local response effects in interatomic collisions with two active electrons in the framework of time-dependent density functional theory; Untersuchung lokaler Responseffekte in interatomaren Stoessen mit zwei aktiven Elektronen im Rahmen zeitabhaengiger Dichtefunktionaltheorie

Energy Technology Data Exchange (ETDEWEB)

Keim, M.

2005-07-01

In the present thesis response effects in interatomic collisions with two active electrons are studied in the range of non-relativistic collision energies. The starting point is the mapping of the time-dependent interacting many-electron sytem on an effective one-particle picture on the base of the time-dependent density functional theory (TDDFT). By means of the basis generator method the one-particle equations aring in the framework of the TDDFT concept are solved in a finite-dimensional model space. In the study of ionization cross section in the collisional systeem anti p+He it is shown that by response effects an essential diminuishing of the cross sections in comparison to the no-response case is reached. Analoguously the ionization cross sections for the collisional systems p-He, He{sup 2+}-He, Li{sup 3+}-He and p-Li{sup +} behave.

On the effect of oxygen or copper(II) in radiation-induced degradation of DNA in the presence of thiols

International Nuclear Information System (INIS)

Pruetz, W.A.; Moenig, Hans

1987-01-01

Degradiation of DNA when γ-irradiated in aqueous solutions containing cysteine can be efficiently enhanced not only with oxygen, but to the same extent also with Cu 2+ ions under hypoxic conditions. The result can be explained by 'self-repair' in this sytem due to recombination of DNA radical with RSS radical - R intermediates, and repair inhibition by oxygen or copper involving RSS radical - R scavenging. It is emphasized that oxygen enhancement in DNA-thiol systems may occur not only by peroxidation, via defect fixation (DNA-O radical 2 ) or thiol activation (RS-O radical 2 ), but also by the well-established inactivation of RSS radical - R by oxygen. There is evidence also from literature data for a correlation between oxygen enhancement and RSS radical - R stability, which varies with thiol concentration, pH and thiol structure. (author)

The multi-filter rotating shadowband radiometer (MFRSR) - precision infrared radiometer (PIR) platform in Fairbanks: Scientific objectives

Energy Technology Data Exchange (ETDEWEB)

Stamnes, K.; Leontieva, E. [Univ. of Alaska, Fairbanks (United States)

1996-04-01

The multi-filter rotating shadowband radiometer (MFRSR) and precision infrared radiometer (PIR) have been employed at the Geophysical Institute in Fairbanks to check their performance under arctic conditions. Drawing on the experience of the previous measurements in the Arctic, the PIR was equipped with a ventilator to prevent frost and moisture build-up. We adopted the Solar Infrared Observing Sytem (SIROS) concept from the Southern Great Plains Cloud and Radiation Testbed (CART) to allow implementation of the same data processing software for a set of radiation and meteorological instruments. To validate the level of performance of the whole SIROS prior to its incorporation into the North Slope of Alaska (NSA) Cloud and Radiation Testbed Site instrumental suite for flux radiatin measurements, the comparison between measurements and model predictions will be undertaken to assess the MFRSR-PIR Arctic data quality.

An estimation method of system failure frequency using both structure and component failure data

International Nuclear Information System (INIS)

Takaragi, Kazuo; Sasaki, Ryoichi; Shingai, Sadanori; Tominaga, Kenji

1981-01-01

In recent years, the importance of reliability analysis is appreciated for large systems such as nuclear power plants. A reliability analysis method is described for a whole system, using structure failure data for its main working subsystem and component failure data for its safety protection subsystem. The subsystem named main working system operates normally, and the subsystem named safety protection system acts as standby or protection. Thus the main and the protection systems are given mutually different failure data; then, between the subsystems, there exists common mode failure, i.e. the component failure affecting the reliability of both two. A calculation formula for sytem failure frequency is first derived. Then, a calculation method with digraphs is proposed for conditional system failure probability. Finally the results of numerical calculation are given for the purpose of explanation. (J.P.N.)

A system for fast neutron radiography

International Nuclear Information System (INIS)

Klann, R.T.

1996-01-01

A system has been designed and a neutron generator installed to perform fast neutron radiography. With this sytem, objects as small as a coin or as large as a waste drum can be radiographed. The neutron source is an MF Physics A-711 neutron generator which produces 3x10 10 neutrons/second with an average energy of 14.5 MeV. The radiography system uses x-ray scintillation screens and film in commercially available cassettes. The cassettes have been modified to include a thin sheet of plastic to convert neutrons to protons through elastic scattering from hydrogen and other low Z materials in the plastic. For film densities from 1.8 to 3.0, exposures range from 1.9x10 7 to 3.8x10 8 n/cm 2 depending on the type of screen and film

Infrared LED Array For Silicon Strip Detector Qualification

CERN Document Server

Dirkes, Guido; Hartmann, Frank; Heier, Stefan; Schwerdtfeger, Wolfgang; Waldschmitt, M; Weiler, K W; Weseler, Siegfried

2003-01-01

The enormous amount of silicon strip detector modules for the CMS tracker requires a test-sytem to allow qualification of each individual detector module and its front-end electronics within minutes. The objective is to test the detector with a physical signal. Signals are generated in the detector by illumination with lightpulses emitted by a LED at 950~nm and with a rise time of 10~ns. In order to avoid a detector moving, an array of 64 LEDs is used, overlaping the complete detector width. The total length of an array is 15~cm. The spot size of an individual LED is controlled by apertures to illuminate about 25 strips. Furthermore it is possible to simulate the high leakage current of irradiated sensors by constant illumination of the sensor. This provides an effective mean to identfy pinholes on a sensor.

Binary star statistics: the mass ratio distribution for very wide systems

International Nuclear Information System (INIS)

Trimble, V.

1987-01-01

The distribution of mass ratios for a sample of common proper motion (CPM) binaries is determined and compared with that of 798 visual binaries (VB's) studied earlier, in hopes of answering the question: Can the member stars of these systems have been drawn at random from the normal initial mass function for single stars? The observed distributions peak strongly toward q = 1.0 for both kinds of systems, but less strongly for the CPM's than for the VB's. Due allowance having been made for assorted observational selection effects, it seems quite probable that the CPM's represent the observed part of a population drawn at random from the normal IMF, while the VB's are much more difficult to interpret that way and could, perhaps, result from a formation mechanism that somewhat favors sytems with roughly equal components. (author)

Dynamic Simulation as a tool to improve the efficiency of Energy Sytems. Applications in the Steel Industry

Directory of Open Access Journals (Sweden)

Kitzber R.

2012-10-01

Full Text Available To answer the need in reducing the amount and costs of the energetic consumptions in large industries, improvement methods mostly based on stationary considerations are being used today. It is difficult with such approaches to consider potentials hidden in time dependent effects. The batch operated processes of an Integrated Iron and Steel Plant (IISP typically show time dependent behaviour. Therefore, dynamic considerations are used in this paper to increase the efficiency of energy systems (steam and hot water networks in a European IISP. This allows the consideration of potential improvements not only through modifications of the process design and operating conditions but also through optimized control parameters, and enhancement of the transient operation procedures. This paper describes an improvement procedure for the considered energy systems. The physical modelling of all main components (sources, network piping, valves and control devices, is carried out with the simulation program APROS. The potential use of the physical dynamic models is then illustrated by a practical example, which deals with the operating conditions enhancement of a steam turbine. Finally, the application range of the developed simulation models is discussed. Especially, their further utilization for the implementation of model predictive control is outlined.

Investigating the Effect of Normalization Norms in Flexible Manufacturing Sytem Selection Using Multi-Criteria Decision-Making Methods

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Prasenjit Chatterjee

2014-07-01

Full Text Available The main objective of this paper is to assess the effect of different normalization norms within multi-criteria decisionmaking (MADM models. Three well accepted MCDM tools, namely, preference ranking organization method for enrichment evaluation (PROMETHEE, grey relation analysis (GRA and technique for order preference by similarity to ideal solution (TOPSIS methods are applied for solving a flexible manufacturing system (FMS selection problem in a discrete manufacturing environment. Finally, by the introduction of different normalization norms to the decision algorithms, its effct on the FMS selection problem using these MCDM models are also studied.

Chemically deposed layer sytems for the realization of YBa2Cu3O7-δ band conductors

International Nuclear Information System (INIS)

Engel, Sebastian

2009-01-01

The aim of this thesis was to produce new buffer-layer systems for biaxially texturated Ni5at%W substrates by means of chemical processes. As very promising materials for the buffer layers CaTiO 3 and SrTiO 3 were chosen. The production of the single layers pursued from the organometallic prestage by means of dip coating and subsequent head treatment. During the work first the single precursor solutions were to be developed. A main component of the theses forms the understanding of the texture development during the heat treatment of precursor layers on biaxially texturated metallic substrates. Based on this the growth of thick buffer layers is studied and by means of YBCO layers, which were deposed by beans of a pulsed laser, the functionality of the synthesized buffer layers proved. A further component of this thesis formes the influence of nanoscaling precipitations in thew YBCO on its superconducting properties. The YBCO deposition pursued via a variation of the TFA process, as substrate (001)-oriented SrTiO 3 monocrystals were applied

Diagnosis and evaluation of fungi presence in the air of two different ventilation sytems for broiler houses

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ACS Gigli

2005-12-01

Full Text Available Intensive broiler production in tropical climates requires adequate air circulation to control heat stress. Excess of air speed may lead to dust production and reduction of air quality and, consequently, production parameters. Brazilian regulations prohibit the presence of pathogens that may deteriorate air quality, and the presence of fungi in the air inside the poultry houses is limited to 750CFU/m³. The aim of this study was to evaluate the presence of fungi in two distinct types of broiler houses. The research compared two types of air ventilation: conventional (G1 and positive tunnel ventilation (G2. The fungi were collected using a dust sampling pump, with the air flow calibrated to 1.5 L/min. The filter impregnated with dust was submitted to growth for two days using five Petri dishes. Microbiology analysis showed that there were 1,239 CFU and 2,011 CFU in G1 and G2, respectively. The different genera of fungi found and their percentages were: Penicillium 29.16%, Aspergillus 37.5% and Fusarium 29.16% in G1 and Penicillium 33.34%, Aspergillus 26.64%, Fusarium 23.34% and Neurospora 3.34% in G2.

Development of sound absorption measuring system with acoustic chamber; Kogata kyuon koka sokutei sochi no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Takahira, M.; Noba, M. [Toyota Motor Corp., Aichi (Japan); Matsuoka, H. [Nippon Soken, Inc., Tokyo (Japan)

1998-05-01

In order to measure sound absorption performance necessary to develop sound absorption materials, development was made on a device consisting of a small sound box capable of measurement inexpensively and easily, as a measure against the reverberation chamber method. In order to obtain stabilized diffusion sound internally, the sound box has a shape of asymmetric seven-side body in which sides do not face squarely with each other. The box was so sized that a large number of resonant vibration postures can be constituted at the targeted frequency simultaneously in the box. The box has a commercially available cone speaker with good acoustic output characteristics in frequency range of higher than 500 Hz installed on an inner side of the box. The sound source uses a method to derive sound absorption rate from difference of sound pressure levels. In order to eliminate need of averaging treatment by using a multi-point measurement inside the box, a discussion was given to provide an opening on part of the box to place the sound receiving point outside the opening. A square test piece is placed on the floor 0.5 meter or more away from the speaker in the box. As a result of the experiment, it was verified that the sound absorption rate obtained by this device corresponds well with that by the reverberation chamber method. The size of the test piece was also found adequate. 2 refs., 11 figs., 1 tab.

Cyclic variation of heat flux on spark plug; Tenka plug bu no netsuryusoku hendo no sokutei

Energy Technology Data Exchange (ETDEWEB)

Ishii, K.; Sasaki, T.; Urata, Y. [Honda Motor Co. Ltd., Tokyo (Japan); Kagawa, J.; Matsutani, W. [NGK Spark Plug Co. Ltd., Nagoya (Japan)

1998-02-25

This paper examines the relationship between the magnitude of the heat flux to the spark plug ground electrode, averaged over an 80` crank angle (CA) of early compression stroke, and the initial burning rate, defined as the CA at which 5% of mass is burned. The heat flux was measured by a thin-film thermocouple with the hot junction on the surface of ground electrode. The results demonstrate that faster initial burning rate correlated well with increasing heat flux from the spark plug to the mixture. The difference in the magnitude and direction of the heat flux is associated with the amount of residual gas concentration and thus the results show the effect of residual gas concentration. The cycle-averaged heat flux from the hot junction is 0.367 MW/m{sup 2}, corresponding to a total heat flow of 20 W from the total surface area of ground electrode. This value is about an order of magnitude larger than that previously reported in the literature for locations away from the spark plug, e. g. at the cylinder wall. 11 refs., 9 figs., 1 tab.

Measurement of sediments thickness by ground penetrating radar; Denjihaho wo mochiita kotei taisekibutsu soatsu no sokutei

Energy Technology Data Exchange (ETDEWEB)

Nozawa, E [Tokyo Electric Power Co. Inc., Tokyo (Japan); Inagaki, M

1997-05-27

An attempt was made to measure thickness of a layer of reservoir bottom sediments by utilizing the electromagnetic reflection method. Because water is a substance difficult for electromagnetic waves to permeate, considerations were given on to suppress attenuation to a minimum, and improve receiving sensitivity. The test used monocycle pulses with a central frequency of 200 MHz. In order to generate stabilized pulses with little unnecessary reflection, an antenna as large as it can be fitted into a rubber boat was employed. In order to acquire referential data, the test was carried out by using simultaneously a sound wave exploration device. The lake at which the test was carried out is a regulating reservoir with a size of about 250 m {times} 150 m, with its bottom made of concrete slab. This means that the lake consists of a three-layer structure comprising water, soil deposits, and concrete bottom from the water surface. According to an example of acquired electromagnetic exploration records, boundary reflection of water and sediments was observed clearly at water depths of 2 to 3 m as a shallow portion and 5 to 6 m as a deep portion. Reflection between the sediments and the bottom plate was also observed sufficiently distinctly. 3 refs., 8 figs.

Methods for PCO2 measurement in coral reef. Sangosho ni okeru PCO2 no genba sokutei

Energy Technology Data Exchange (ETDEWEB)

Kitano, H; Saito, H; Mito, A; Tamura, N; Takahashi, C [National Research Laboratory of Metrology, Tsukuba (Japan)

1993-05-01

This paper introduces an instrument to measure CO2 partial pressure in sea water being developed for coral reef site measurements. The instrument uses a method that sea water is contacted with a gaseous phase via a gaseous body permeating membrane, and CO2 partial pressure in the gaseous phase is measured when CO2s in the sea water and the gaseous phase have reached a dissolution equilibrium, using an adequate analyzer. The gaseous body permeating membrane uses a material with high CO2 permeation rates, such as porous polytetrafluoroethylene. The paper describes a system that applies a gaschromatograph process to analyzing CO2 in the gaseous phase, and an automatic measuring system that utilizes a non-discrete infrared densitometer. Basic experiments are being carried out that are intended to develop a CO2 partial pressure sensor using optic fibers. This is a device to measure CO2 concentration in sea water, in which fluorescent coloring aqueous solution is contacted with sea water via a gaseous body permeation membrane, and change in fluorescence intensity in the said solution as a result of CO2 melting into it from sea water is utilized. 3 refs., 4 figs.

La Basílica de San Francisco de Asís después del terremoto del 26 de septiembre de 1997

Directory of Open Access Journals (Sweden)

Giorgio Croci

1998-12-01

Full Text Available La Basílica de San Francisco de Asís, gravemente dañada tras los primeros terremotos de otoño de 1997, amenazaba con un colapso completo a raíz del estado de difícil equilibrio en que había quedado. La intervención descrita en este artículo explica cómo se pudo consolidar el templo dañado en tiempo récord, poco antes de un seísmo fortísimo que habría provocado con seguridad el derrumbamiento de gran parte de su cubierta, con la grave pérdida que este hecho hubiera supuesto para el patrimonio arquitectónico y la historia del arte italiana.

Vidiki etičnega poslovanja

Directory of Open Access Journals (Sweden)

Vesna Škedelj

2015-12-01

Full Text Available RQ: Using the concept of business ethics and corporate social responsibility are necessary and also long-termeconomic profitable. Purpose: The aim of this paper is to define business ethics as a driver of competitive advantage of companies. Method: Analysis of Papers from the Proceedings 22 Forum excellence and mastery, Otočec and magazines for universal excellence. Results: Define business ethics as a factor of competitive advantage of companies. Identify the factors of business ethics, corporate social responsibility and unethical business. Organization: What is the impact of research managers and the organization or practice Society: Better Business Ethics and Corporate Social Responsibility help better business organizations. Originality: Another way to look at the issue and find a solution

Atvērtā pirmkoda programmatūras pielietojuma iespējas ISO/IEC 27000 standartu sērijas prasību apmierināšanai

OpenAIRE

Vasiļjevs, Oļegs

2014-01-01

Bakalaura darba ietvaros tiek apskatīta un izanalizēta informācijas drošības pārvaldes sistēmas apakškategorija - ISO/IEC 27000 standartu sērijā. Ievērojot sertifikāta iegūšanas projekta apjomu un standartu kopas īpatnējo “zarošanas” struktūru, ir viegli definējams galvenais darba uzdevums – saprast kas tieši ir vajadzīgs no sistēmas administratora, lai īstenotu savu darba daļu pietiekami ātri. Galvenais darba mērķis ir sniegt vienkāršoto ISO/IEC 27000 standartu sērijas prasības izklāstu sis...

First-principles study of hydrogen diffusion in transition metal Rhodium

International Nuclear Information System (INIS)

Bao, Wulijibilige; Cui, Xin; Wang, Zhi-Ping

2015-01-01

In this study, the diffuse pattern and path of hydrogen in transition metal rhodium are investigated by the first-principles calculations. Density functional theory is used to calculate the system energies of hydrogen atom occupying different positions in rhodium crystal lattice. The results indicate that the most stable position of hydrogen atom in rhodium crystal lattice locates at the octahedral interstice, and the tetrahedral interstice is the second stable site. The activation barrier energy for the diffusion of atomic hydrogen in transition metal rhodium is quantified by determining the most favorable path, i.e., the minimum-energy pathway for diffusion, that is the indirect octahedral-tetrahedral-octahedral (O-T-O) pathway, and the activation energy is 0.8345eV

BECKWITH - WIEDEMANN SENDROMU (OLGU BİLDİRİSİ)*-THE BECKWITH - WIEDEMANN SYNDROME (CASE REPORT)

OpenAIRE

Ak, Gülsüm; Ünür, Meral; Güç, Ülker; Ağırbaş, Erkan; Erginel, Ayten

2013-01-01

ÖZETBeckwith-Wiedemann sendromu, ana belirtileri 'exomp-halos', makroglossi ve gigantizm olan ve etiyolojisi henüz tamamen aydınlanmamış bir büyüme hastalığıdır. Ancak bugüne kadar sendromun değişik expresivite gösteren oto-somal dominant bir genle geçtiğini bildiren vakalar vardır. Bazı yazarlar sendromun görülme sıklığım 1/13.700 olarak bildirmişlerdir. Kızlarda yaklaşık %60 oranında daha fazla görülmektedir.Diş Hekimliği açısından bu sendrom, makroglossi, mandi-buler prognatiye e...

Experimental Determination of the Possible Deuterium - Deuterium Fusion Reaction Originated in a Single Cavitation Bubble Luminescence System Using CDCL3 and D2 O

International Nuclear Information System (INIS)

Barbaglia, Mario; Florido, Pablo; Mayer, Roberto; Bonetto, Fabian

2003-01-01

We focus this work on the measurement of the possible Deuterium - Deuterium reaction in a SCBL (Single Cavitation Bubble Luminescence) system.We measure the possible reaction at the bubble generation time and at the bubble collapse time. We use a Nd:YAG laser and CDCl 3 and D 2 O as a medium to generate the bubble. Since CDCl 3 accommodation coefficient is best than that of D 2 O, it is expected a greater collapse force than using D 2 O.To benefit the bubble collapse violence, we diminish the temperature of the liquids.To avoid false neutron detection, we developed a measuring system with high background reject using the characteristic experiment times.No neutrons attributable to Deuterium - Deuterium fusion reaction were measured

Optimation of patient positioning and irradiation field documentation when irradiating in oto-rhino-laryngological area

International Nuclear Information System (INIS)

Proske, H.

1992-01-01

The large mobility of head and neck requires, when irradiating in this area, positioning and fastening aids, which go beyond simple head bolsters or head moulds. This paper presented describes a positioning system developed by us for irradiating the neck-nose-throat area, which, due to its construction, consists of a non-slipping positioning ground plate and an individually adjustable masking system, which is physiological safe, can be proceeded quickly and exactly, is relatively inexpensive, and is accepted by patients without objections, furthermore since skin markings by drawing field limits onto the face mask are no longer necessary. Various technical aids allow the placement of satellites to spare those body parts which are not irradiated and to installed compensators for the direction of radiation. An integrated cartridge mount enables in a simple way easy production of field control documentation photos. (orig.) [de

Wave response analyses of floating crane structure; Crane sen no jobu kozobutsu no haro oto

Energy Technology Data Exchange (ETDEWEB)

Nobukawa, H.; Takaki, M.; Kitamura, M.; Ahou, G. [Hiroshima University, Hiroshima (Japan). Faculty of Engineering; Higashimura, M. [Fukada Salvage and Marine Works Co. Ltd., Osaka (Japan)

1996-12-31

Identifying a dynamic load acting on a lifted load in a floating crane moving in waves is important for preparing an operation manual for the floating crane. Analyses were made on motions in waves of a floating crane with a lifting load of 3,600 tons, with considerations given to deformation of the crane structure. Discussions were given on a dynamic load acting on a lifted load. If a case that considers elastic deformation in the crane structure is compared with a case that does not consider same in calculating hull motions of the floating crane, the difference between them is small if wave length {lambda} to the ship length L is about 0.5. However, if {lambda}/L is 1.0 and 1.5, the difference grows very large. Therefore, the effect of deformation in the crane structure on hull motions of the floating crane cannot be ignored in these cases. A dynamic load acting on a lifted load that considers deformation in the crane structure is about 5% of lifted weight in a headsea condition in which the wave height is 2 m and {lambda}/L is 1.5. As opposed, an estimated value of a dynamic load when the crane structure is regarded as a rigid body is 13%, which is 2.6 times as great as the case that considers deformation of the crane structure. 3 refs., 17 figs., 1 tab.

Study on the time-domain electromagnetic responses; TDEM ho ni okeru denji oto ni tsuite

Energy Technology Data Exchange (ETDEWEB)

Noguchi, K; Endo, M [Waseda University, Tokyo (Japan). School of Science and Engineering

1997-05-27

With an objective to perform three-dimensional analysis with high accuracy in using the electromagnetic exploration method, characteristics in electromagnetic response were analyzed, and conditions for acquiring necessary data were discussed. The discussion defined a parameter called `response anomaly` which uses response from media to standardize response only from substances with abnormal resistivity. The receivers were located uniformly on the same plane, and the response anomaly was derived from electromagnetic response from each of the three horizontal and vertical components at each receiving point, which was expressed as a contour map. The parameter for the abnormal body was consisted of location and resistivity contrast with media. Discussions using the contour map were given on the response when these factors for the parameter were varied. As a result, it was found that the response anomaly appears in the form that reflects the abnormal body, and the response anomaly of the horizontal component is superior in terms of being large. It was also referred that, as a requirement for the abnormal body which gives larger impact from the electromagnetic response, the abnormal body should have lower resistivity than that in the media, and resistivity contrast with the media should be greater. 2 refs., 7 figs., 1 tab.

Wave response analyses of floating crane structure; Crane sen no jobu kozobutsu no haro oto

Energy Technology Data Exchange (ETDEWEB)

Nobukawa, H; Takaki, M; Kitamura, M; Ahou, G [Hiroshima University, Hiroshima (Japan). Faculty of Engineering; Higashimura, M [Fukada Salvage and Marine Works Co. Ltd., Osaka (Japan)

1997-12-31

Identifying a dynamic load acting on a lifted load in a floating crane moving in waves is important for preparing an operation manual for the floating crane. Analyses were made on motions in waves of a floating crane with a lifting load of 3,600 tons, with considerations given to deformation of the crane structure. Discussions were given on a dynamic load acting on a lifted load. If a case that considers elastic deformation in the crane structure is compared with a case that does not consider same in calculating hull motions of the floating crane, the difference between them is small if wave length {lambda} to the ship length L is about 0.5. However, if {lambda}/L is 1.0 and 1.5, the difference grows very large. Therefore, the effect of deformation in the crane structure on hull motions of the floating crane cannot be ignored in these cases. A dynamic load acting on a lifted load that considers deformation in the crane structure is about 5% of lifted weight in a headsea condition in which the wave height is 2 m and {lambda}/L is 1.5. As opposed, an estimated value of a dynamic load when the crane structure is regarded as a rigid body is 13%, which is 2.6 times as great as the case that considers deformation of the crane structure. 3 refs., 17 figs., 1 tab.

Ocean thermal energy conversion power system development. Final design report: PSD-I, Phase II

Energy Technology Data Exchange (ETDEWEB)

None

1980-06-30

The PSD-I program provides a heat exchanger sytem consisting of an evaporator, condenser and various ancillaries with ammonia used as a working fluid in a closed simulated Rankine cycle. It is to be installed on the Chepachet Research Vessel for test and evaluation of a number of OTEC concepts in a true ocean environment. It is one of several test articles to be tested. Primary design concerns include control of biofouling, corrosion and erosion of aluminum tubes, selection of materials, and the development of a basis for scale-up to large heat exchangers so as to ultimately demonstrate economic feasibility on a commercial scale. The PSD-I test article is devised to verify thermodynamic, environmental, and mechanical performance of basic design concepts. The detailed design, development, fabrication, checklist, delivery, installation support, and operation support for the Test Article Heat Exchangers are described. (WHK)

A basic system architecture for sensor data diffusion of environment sensors for intelligent cruise control systems; Eine Basis-Systemarchitektur zur Sensordatenfusion von Umfeldsensoren fuer Fahrerassistenzsysteme

Energy Technology Data Exchange (ETDEWEB)

Darms, M.

2007-07-01

The design of the system architecture for sensor data diffusion at the beginning of the development process has significant influence on the cost. With a view to intelligent cruise control systems, the author investigated general assumptions concerning data association and data filtering for sensor data diffusion of environment sensors which must be considered when designing an architecture or may be considered for optimisation. The validity of the assumption is illustrated by simulations of adaptive speed control and time-to-collision calculations as well as on the basis of available literature. A basic sytem architecture is presented as a precursor of the final architecture which is based on these assumptions. Their applicability is proved by implementation in the PRORETA project. The author's work provides a validated basis for architects of a serial system architecture enabling them to design and implement their ultimate systems. (orig.)

Long-term exposure to electrical fields: a cross-sectional epidemiologic investigation of occupationally exposed workers in high-voltage substations

Energy Technology Data Exchange (ETDEWEB)

Knave, B

1979-07-01

The aim of the study was to investigate the possibility of persistent, chronic health effects in the exposed group as a consequence of exposure. The investigation included the nervous sytem, cardiovascular system and the blood. Fertility was also assessed. The results showed no differences between the exposed and reference groups as a consequence of the long-term exposure. The groups differed, however, in that the exposed group had (a) consistently better results on the psychological performance tests, (b) fewer children, especially boys, and (c) somewhat higher education. The differences in test results were due to the higher education among the exposed. The difference in number of children was also thought to be related to factors other than exposure since the difference in number of children was found to be present already 10 to 15 years before the work in 400 kV substations began. 35 references.

Telon Blue AGLF Adsorption by NiO Based Nanomaterials:Equilibrium, Kinetic And Thermodynamic Approach

Directory of Open Access Journals (Sweden)

Gizem Biçer

2017-06-01

Full Text Available In this study, the effects of adsorption parameters such as initial pH, initial dye concentration, temperature and adsorbent dosage on the colour removal from aqueous solution containing Telon Blue AGLF(TB AGLF textile dye were investigated by NiO based nanomaterials and then the compliance of the equilibrium data with the different isotherm models in the literature was evaluated. In the next step, the adsorption sytem was analyzed in terms of kinetics and thermodynamics. At the end of the study, XRD, SEM and FTIR analysis methods were used for the particle characterization. As a result of the experimental studies, it was detected the successful use of NiO based nanomaterials synthesized by aqueous solution method rarely seen in literature for colour removal. Through this study, it is believed that the additional contributions are provided to the scientific investigations about the recovery of the water resources.

Holographic aids for internal combustion engine flow studies

Science.gov (United States)

Regan, C.

1984-01-01

Worldwide interest in improving the fuel efficiency of internal combustion (I.C.) engines has sparked research efforts designed to learn more about the flow processes of these engines. The flow fields must be understood prior to fuel injection in order to design efficient valves, piston geometries, and fuel injectors. Knowledge of the flow field is also necessary to determine the heat transfer to combustion chamber surfaces. Computational codes can predict velocity and turbulence patterns, but experimental verification is mandatory to justify their basic assumptions. Due to their nonintrusive nature, optical methods are ideally suited to provide the necessary velocity verification data. Optical sytems such as Schlieren photography, laser velocimetry, and illuminated particle visualization are used in I.C. engines, and now their versatility is improved by employing holography. These holographically enhanced optical techniques are described with emphasis on their applications in I.C. engines.

Seasonal and monthly distribution of deaths of Cyprus Mouflon Ovis gmelini ophion

Directory of Open Access Journals (Sweden)

Hadjisterkotis, E.

2002-12-01

ébut de l'hiver.
[es]
Ciento cinco muflones de Chipre (54 machos, 37 hembras, 13 crías y un adulto de sexo desconocido fueron recogidos recién muertos desde noviembre de 1985 a enero de 1998 en el bosque de Pafos (Chipre. La mayoría de los cadáveres (37,2% fueron recogidos en el otoño (18M, 20H, 1C, seguido del invierno (31,4%, 24M, 8H, 0C, primavera (22,9%, 10M, 3H, 11C, y verano (8,6%, 2M, 6H, 1C. La mayor mortalidad de carneros (13 se dio en enero, seguida de diciembre (10 y noviembre (8 (durante el periodo de celo, y septiembre (6. Setenta hembras (45,9% murieron afínales de otoño, 6 (16,2% a principios de invierno, 6 (16,2% en verano, 3 (8,1% en primavera y 3 (8,1% a principios de otoño. El forraje se reduce en cantidad y calidad durante el largo y seco verano de Chipre. Los altos requerimientos energéticos del celo, una mala nutrición y los problemas sanitarios, en combinación con los primeros fríos del invierno, probablemente explique el incremento de mortalidad observada afínales de otoño y principios de invierno.

Proliferaciones algales 2000-2001 en Bahía de Banderas, México según el sensor SeaWiFS

Directory of Open Access Journals (Sweden)

María C Gómez-Villarreal

2008-12-01

Full Text Available Se analizaron las proliferaciones algales ocurridas en Bahía de Banderas, México, durante los años 2000 y 2001 a partir de información derivada del sensor de color del océano SeaWiFS. Estos eventos estuvieron relacionados con los máximos niveles de Anomalías Semanales de Clorofila’ (As i; variable construida para analizar la variación temporal de la clorofila dentro de la bahía. Las proliferaciones ocurridas en los periodos invierno-primavera fueron multiespecíficos, mientras que en verano-otoño fueron dominadas por una sola especie. Se plantean dos propuestas: 1 las proliferaciones algales de invierno-primavera están fuertemente relacionadas a procesos de mesoescala dada su aparente sincronía temporal con altos niveles de clorofila en las costas de Sinaloa a Jalisco; 2 mientras que las proliferaciones de Cochlodinium polykrikoides durante los periodos verano-otoño son favorecidas por el efecto de otras proliferaciones algales previas sobre el ecosistema y por condiciones predominantemente locales en la bahía.Algal blooms at Banderas Bay, México (2000-2001, from SeaWiFS-sensor-data. Algal blooms for the period of 2000 and 2001 at Banderas Bay, México, were analyzed from SeaWiFS-ocean-color-sensor derived information. These events were related with the maximum chlorophyll week anomalies (ASi; a proxy variable constructed for the analysis of chlorophyll temporal variation in the bay. The winter-spring blooms were multispecific, while the summer-fall blooms were monospecific. Two proposals are made: 1 Winter-spring blooms are strongly related with mesoescale processes, due to their apparent temporal synchrony with the high chlorophyll levels in the coastal region from Sinaloa to Jalisco states; 2 Cochlodinium polykrikoides (Margalef 1961 blooms during the summer-fall periods could be induced by local conditions and the influence of previous events on the ecosystem. Rev. Biol. Trop. 56 (4: 1653-1664. Epub 2008 December 12.

Vibration measurement for evaluating the danger of rock-collapse; Rakuseki kikendo hantei no tame no shindo sokutei

Energy Technology Data Exchange (ETDEWEB)

Takeuchi, T; Harada, H [The Nippon Road Co. Ltd., Tokyo (Japan); Mitsuzuka, T [Chishitsu-Keisoku Co. Ltd., Tokyo (Japan)

1997-10-22

Discussions were given on feasibility of a method for investigating a problem of the danger of rock-collapse by applying vibration measurement. The measurement investigation was carried out at a mouth of a tunnel under construction on a highway where the danger of rock-collapse is being investigated according to a qualitative determination criterion. Sixty-four rocks have been evaluated of their danger, with the degree of the danger having been classified to ranks one to three. Vibration measurement was performed on five floating rocks out of the 64 rocks. Vibroscopes were installed on upper portion of the rocks to be investigated and on exposed rocks nearby. The measurement revealed that the vibration has nearly the same amplitude in both of the floating rocks and the settled rocks before and after an automobile has passed, but the floating rocks shake more strongly than the settled rocks while an automobile is passing. This trend appears more noticeably in rocks regarded unstable in the danger determining investigation, indicating presence of close relationship between wave amplitude excited by the automobile and adhesion of the floating rocks. As a result of the discussions, it was made clear that the maximum amplitude ratio and the spectral ratio among the vibration characteristics of the floating rocks can be used as effective determination criteria. 2 refs., 7 figs., 2 tabs.

Measurement of electromagnetic force between multiple bulk superconductors; Fukusu no barukutai chodendotai to eikyujishakukairo niokeru denjiryoku sokutei

Energy Technology Data Exchange (ETDEWEB)

Otani, T.; Murakami, M. [Superconductivity Research Laboratory, Tokyo (Japan); Nagashima, K. [Railway Technical Research Institute, Tokyo (Japan); Murayama, M. [Shikoku Ekectric Power Co., Inc., Kagawa (Japan)

1999-11-25

The electromagnetic force (EMF) that is exhibited by the interaction between bulk superconductors and permanent magnets is used for magnetic levitation devices. To facilitate such applications, it is necessary to enhance the EMF. We measured the EMF for Y-Ba-Cu-O superconductors with different shapes and dimensions by varying the structure of disk magnets such as their thickness and the number of poles. The EMF is strongly dependent on the magnet structure as long as permanent magnets and good quality bulk superconductors are used. Thus, for the design of practical devices, it is important to optimize the magnet structure. (author)

Magnetic susceptibility measurements in Yellowstone National Park, USA; Beikoku Yellowstone kokuritsu koen ni okeru genchi jikaritsu sokutei

Energy Technology Data Exchange (ETDEWEB)

Okuma, S [Geological Survey of Japan, Tsukuba (Japan)

1997-05-27

For the purpose of interpreting data of the aeromagnetic anomalies in Yellowstone National Park in the U.S.A., in-situ magnetization intensity measurements have been carried out in 1994 and 1995 on geological outcrops of rocks in that area. Comparisons and discussions were given on the measurement results, and existing rock magnetic data and aeromagnetic anomaly data available for the area. Outside the Yellowstone caldera, part of granitic gneisses among the Precambrian granitic gneisses and crystalline schists distributed to the north has an abnormally high magnetization intensity of 1 {times} 10 {sup -2} SI. This could be a powerful anomaly source for the high magnetic anomaly in this area. Paleogene volcanic rocks distributed widely in the eastern part of the park also have magnetization intensity as high as 1 {times} 10 {sup -2} SI or higher, which are also thought a powerful anomaly source in this area. Part of Pleistocene basalts which are exposed partially in the western part of the park has also very high magnetization intensity at 1 {times} 10 {sup -2} SI or higher. This suggests correlation with the magnetic anomaly in the east-west direction distributed in this area. Quaternary rhyolites are more magnetic than Quaternary welded tuffs, which should give greater effects to the magnetic anomaly. 10 refs., 5 figs.

En época del Medievo

Directory of Open Access Journals (Sweden)

Córdoba, Joaquín Mª

2005-04-01

Full Text Available El siglo XIII y sobre todo los dos siguientes, el XIV y el XV, siglos que Johan Huizinga evocaría como «el otoño de la Edad Media» parecen haber sido especialmente fértiles en viajes a mundos remotos. Frailes y nobles, comerciantes y aventureros europeos unidos en épicas jornadas llegarían a regiones tan remotas como el corazón de Mongolia, el Mar Rojo o las islas de Java y Sumatra. Y entre las vidas, los viajes y los recuerdos de fray Guillermo de Rubruck, Marco Polo o Niccolò dei Conti, redescubrimos nosotros el valor y las aventuras de viajeros españoles que, como Ruy González de Clavijo o Don Pero Tafur, escribieron libros hoy estimados entre los mejores…

MRI of the labyrinth with volume rendering for cochlear implants candidates

International Nuclear Information System (INIS)

Sakata, Motomichi; Harada, Kuniaki; Shirase, Ryuji; Suzuki, Junpei; Nagahama, Hiroshi

2009-01-01

We demonstrated three-dimensional models of the labyrinth by volume rendering (VR) in preoperative assessment for cochlear implantation. MRI data sets were acquired in selected subjects using three-dimensional-fast spin echo sequences (3D-FSE). We produced the three-dimensional models of the labyrinth from axial heavily T2-weighted images. The three-dimensional models distinguished the scala tympani and scala vestibuli and provided multidirectional images. The optimal threshold three-dimensional models clearly showed the focal region of signal loss in the cochlear turns (47.1%) and the presence of inner ear anomalies (17.3%) in our series of patients. This study was concluded that these three-dimensional models by VR provide the oto-surgeon with precise, detailed, and easily interpreted information about the cochlear turns for cochlear implants candidates. (author)

Thermal noise and the incessant vibration of the outer hair cells in the cochlea

Directory of Open Access Journals (Sweden)

W. Fritze

1998-01-01

Full Text Available The continual exposure of outer hair cells (OHCs to thermal noise causes vibrations in resonant frequency. As these vibrations are backprojected, they should be recordable as audiofrequencies in the outer ear canal. But even though they are likely to be amplified in some areas by clustering in terms of the chaos theory, they cannot be picked up in the outer ear canal by currently available recording technologies. Conditions change in the presence of pathology, e.g. loss of OHCs and fibrous replacement: Clusters grow in size and amplitudes become larger so that the vibrations can be picked up as spontaneous oto-acoustic emissions (SOAEs in the outer ear canal. Efforts are needed to demonstrate the presence of physiological OHC vibrations (emission by incessant vibration, EIV by processing auditory recordings with statistical methods.

Indeterminate cell histiocytosis in a pediatric patient: successful treatment with thalidomide.

Science.gov (United States)

Tóth, Béla; Katona, Mária; Hársing, Judit; Szepesi, Agota; Kárpáti, Sarolta

2012-04-01

The 15-year-old male patient presented several 2-6 mm large livid reddish-yellowish, shiny, compact papules on the head, trunk and extremities, which had developed within the last 4 months. Histology showed normal epidermis with dense dermal infiltrate of histiocytes accompanied by few eosinophils, Touton or foamy giant cells. The histiocytes were S100 positive, CD1a negative and did not contain Birbeck granules ultrastructurally. Chest X ray, EEG, skull MRI did not show pathology. Opthalmology, neurology, oto-rhino-laryngology did not reveal alterations. Based upon the clinical symptoms and the histopathology, the diagnosis of indeterminate cell histiocytosis was confirmed. Cryotherapy and cauterization did not stop the progression of the disease, however, under thalidomide treatment no new symptoms developed and the lesions healed with pigmentation.

Remote-controlled optics experiment for supporting senior high school and undergraduate teaching

Science.gov (United States)

Choy, S. H.; Jim, K. L.; Mak, C. L.; Leung, C. W.

2017-08-01

This paper reports the development of a remote laboratory (RemoteLab) platform for practising technologyenhanced learning of optics. The development of RemoteLab enhances students' understanding of experimental methodologies and outcomes, and enable students to conduct experiments everywhere at all times. While the initial goal of the system was for physics major undergradutes, the sytem was also made available for senior secondary school students. To gauge the impact of the RemoteLab, we evaluated two groups of students, which included 109 physics 1st-year undergraduates and 11 students from a local secondary school. After the experiments, evaluation including questionnaire survey and interviews were conducted to collect data on students' perceptions on RemoteLab and implementation issues related to the platform. The surveys focused on four main topics, including user interface, experiment setup, booking system and learning process. The survey results indicated that most of the participants' views towards RemoteLab was positive.

The Danish patient safety experience: the Act on Patient Safety in the Danish Health care system

DEFF Research Database (Denmark)

Lundgaard, Mette; Rabøl, Louise; Jensen, Elisabeth Agnete Brøgger

2005-01-01

This paper describes the process that lead to the passing of the Act for Patient Safety in the Danisk health care sytem, the contents of the act and how the act is used in the Danish health care system. The act obligates frontline health care personnel to report adverse events, hospital owners...... to act on the reports and the National Board of Health to commuicate the learning nationally. The act protects health care providers from sanctions as a result of reporting. In January 2004, the Act on Patient Safety in the Danish health care system was put into force. In the first twelve months 5740...... adverse events were reported. the reports were analyzed locally (hospital and region), anonymized ad then sent to the National Board af Health. The Act on Patient Safety has driven the work with patient safety forward but there is room for improvement. Continuous and improved feedback from all parts...

Energy policy. Technical developments, political strategies, and concepts of action regarding renewable energy sources and rational energy use

International Nuclear Information System (INIS)

Brauch, H.G.

1997-01-01

This interdisciplinary study book deals with problems from the history of energy, energy sytems, energy engineering, and the potential of renewable energy sources: hydro and wind power, biomass, geothermal energy, photovoltaics and solar thermal conversion; the improvement of boundary conditions for their transfer to market; concepts of action and project funding preferences of the EU, USA and Japan in this sector; relevant activities of the federal German government and proposals by non-governmental players in the field as well as strategies for rational energy use; methods for building an energy consensus and criteria for valuating energy systems; concepts of action and proposals for extending solar energy use in the Mediterranean and Afrika, as well as political factors governing the market introduction and export promotion of renewable energy technologies in this triad: the USA, Japan, and the European Union. Seven of the papers contained in the book are individually recorded. (orig./RHM). 76 figs., 100 tabs [de

Abstract Expression Grammar Symbolic Regression

Science.gov (United States)

Korns, Michael F.

This chapter examines the use of Abstract Expression Grammars to perform the entire Symbolic Regression process without the use of Genetic Programming per se. The techniques explored produce a symbolic regression engine which has absolutely no bloat, which allows total user control of the search space and output formulas, which is faster, and more accurate than the engines produced in our previous papers using Genetic Programming. The genome is an all vector structure with four chromosomes plus additional epigenetic and constraint vectors, allowing total user control of the search space and the final output formulas. A combination of specialized compiler techniques, genetic algorithms, particle swarm, aged layered populations, plus discrete and continuous differential evolution are used to produce an improved symbolic regression sytem. Nine base test cases, from the literature, are used to test the improvement in speed and accuracy. The improved results indicate that these techniques move us a big step closer toward future industrial strength symbolic regression systems.

Lawsonia inermis-mediated synthesis of silver nanoparticles: activity against human pathogenic fungi and bacteria with special reference to formulation of an antimicrobial nanogel.

Science.gov (United States)

Gupta, Arpita; Bonde, Shital R; Gaikwad, Swapnil; Ingle, Avinash; Gade, Aniket K; Rai, Mahendra

2014-09-01

Lawsonia inermis mediated synthesis of silver nanoparticles (Ag-NPs) and its efficacy against Candida albicans, Microsporum canis, Propioniabacterium acne and Trichophyton mentagrophytes is reported. A two-step mechanism has been proposed for bioreduction and formation of an intermediate complex leading to the synthesis of capped nanoparticles was developed. In addition, antimicrobial gel for M. canis and T. mentagrophytes was also formulated. Ag-NPs were synthesized by challenging the leaft extract of L. inermis with 1 mM AgNO₃. The Ag-NPs were characterized by Ultraviolet-Visible (UV-Vis) spectrophotometer and Fourier transform infrared spectroscopy (FTIR). Transmission electron microscopy (TEM), nanoparticle tracking and analysis sytem (NTA) and zeta potential was measured to detect the size of Ag-NPs. The antimicrobial activity of Ag-NPs was evaluated by disc diffusion method against the test organisms. Thus these Ag-NPs may prove as a better candidate drug due to their biogenic nature. Moreover, Ag-NPs may be an answer to the drug-resistant microorganisms.

Behavior of aircraft antiskid braking systems on dry and wet runway surfaces: Hydromechanically controlled system

Science.gov (United States)

Tanner, J. A.; Stubbs, S. M.; Smith, E. G.

1981-01-01

The investigation utilized one main gear wheel, brake, and tire assembly of a McDonnell Douglas DC-9 series 10 airplane. The landing-gear strut was replaced by a dynamometer. During maximum braking, average braking behavior indexes based upon brake pressure, brake torque, and drag-force friction coefficient developed by the antiskid system were generally higher on dry surfaces than on wet surfaces. The three braking behavior indexes gave similar results but should not be used interchangeably as a measure of the braking of this antiskid sytem. During the transition from a dry to a flooded surface under heavy braking, the wheel entered into a deep skid but the antiskid system reacted quickly by reducing brake pressure and performed normally during the remainder of the run on the flooded surface. The brake-pressure recovery following transition from a flooded to a dry surface was shown to be a function of the antiskid modulating orifice.

System to take up oil suspended in water. System zur Aufnahme von Wasser schwimmendem Oel

Energy Technology Data Exchange (ETDEWEB)

Skowronek, A; Hahnefeld, J

1981-03-19

This sytem for taking up oil suspended in water has the advantage that the material required can be jettisoned by aircraft in areas affected by an oil catastrophy. Two hoses about 100 metres distant from one another pull a plastic cover made of Perlon through the water. The upper edge of the cover widens into hose-like air containers, in order to keep the cover sufficiently above the water. The lower edge is loaded with quartz sand, in order to keep the cover vertical in the water. A connecting piece guides the oil into a connected plastic pontoon. There are two ships engines mounted in the front third of the connecting piece, which pump the oil into the first pontoon, which acts as storage container. Two dewatering valves are situated in it, which will separate the oil from the water. After passing through this pontoon, the oil reaches a second, much larger plastic pontoon, which acts as the collector for pure oil.

Field-aligned current density versus electric potential characteristics for magnetospheric flux tubes

International Nuclear Information System (INIS)

Lemaire, J.; Scherer, M.

1983-01-01

The field-aligned current density (Jsub(tot)) is a non-linear function of the applied potential difference (phi) between the ionosphere and the magnetosphere. This nonlinear function has been calculated for plasma boundary conditions typical in a dayside cusp magnetic flux tube. The J-characteristic of such a flux tube changes when the temperatures of the warm magnetospheric electrons and of the cold ionospheric electrons are modified; it changes also when the relative density of the warm plasma is modified; the presence of trapped secondary electrons changes also the J-characteristic. The partial currents contributed by the warm and cold electrons, and by warm and cold ions are illustrated. The dynamic characteristic of an electric circuit depends on the static characteristic of each component of the sytem: i.e. the resistive ionosphere, the return current region, and the region of particle precipitation whose field-aligned current/voltage characteristics have been studied in this article

Software tools for microprocessor based systems

International Nuclear Information System (INIS)

Halatsis, C.

1981-01-01

After a short review of the hardware and/or software tools for the development of single-chip, fixed instruction set microprocessor-based sytems we focus on the software tools for designing systems based on microprogrammed bit-sliced microprocessors. Emphasis is placed on meta-microassemblers and simulation facilties at the register-transfer-level and architecture level. We review available meta-microassemblers giving their most important features, advantages and disadvantages. We also make extentions to higher-level microprogramming languages and associated systems specifically developed for bit-slices. In the area of simulation facilities we first discuss the simulation objectives and the criteria for chosing the right simulation language. We consertrate to simulation facilities already used in bit-slices projects and discuss the gained experience. We conclude by describing the way the Signetics meta-microassembler and the ISPS simulation tool have been employed in the design of a fast microprogrammed machine, called MICE, made out of ECL bit-slices. (orig.)

Diagnosis of venous disorders; A challenge for the radiologist. Die radiologische Diagnostik von Venenerkrankungen; Eine Herausforderung

Energy Technology Data Exchange (ETDEWEB)

Minar, E. (Abt. Angiologie, Universitaetsklinik fuer Innere Medizin 2, Vienna (Austria))

1993-09-01

Limited accuracy in the clinic diagnosis of deep vein thrombosis (VT) makes such diagnostic tests such as duplex sonography or venography necessary. Exact information on the age and extent of the thrombus are necessary for the clinician to optimize the therapeutric management. The correct diagnosis of calf vein thrombosis and of recurrent VT in patients with postphlebitis changes also has implications for treatment. After exclusion of thrombosis, the radiologist should evaluate the leg for other possible causes of symptoms besides VT. Investigation of the venous sytem also has a role in the diagnosis in patients with suspected pulmonary embolism. In patients with chronic venous insuffficiency the deep venous system should assessed for patency and venous valve function. The superficial veins should be differentiated in segments with sufficient or insufficient venous valves, and it is also necessary to look for insufficiency of the perforrating veins. In patients with superficial phlebitis there is risk of propagation into the deep venous system. (orig.)

Diagnosis of venous disorders

International Nuclear Information System (INIS)

Minar, E.

1993-01-01

Limited accuracy in the clinic diagnosis of deep vein thrombosis (VT) makes such diagnostic tests such as duplex sonography or venography necessary. Exact information on the age and extent of the thrombus are necessary for the clinician to optimize the therapeutric management. The correct diagnosis of calf vein thrombosis and of recurrent VT in patients with postphlebitis changes also has implications for treatment. After exclusion of thrombosis, the radiologist should evaluate the leg for other possible causes of symptoms besides VT. Investigation of the venous sytem also has a role in the diagnosis in patients with suspected pulmonary embolism. In patients with chronic venous insuffficiency the deep venous system should assessed for patency and venous valve function. The superficial veins should be differentiated in segments with sufficient or insufficient venous valves, and it is also necessary to look for insufficiency of the perforrating veins. In patients with superficial phlebitis there is risk of propagation into the deep venous system. (orig.) [de

Space shuttle/food system study. Volume 2, Appendix A: Active heating system-screening analysis. Appendix B: Reconstituted food heating techniques analysis

Science.gov (United States)

1974-01-01

Technical data are presented which were used to evaluate active heating methods to be incorporated into the space shuttle food system design, and also to evaluate the relative merits and penalties associated with various approaches to the heating of rehydrated food during space flight. Equipment heating candidates were subject to a preliminary screening performed by a selection rationale process which considered the following parameters; (1) gravitational effect; (2) safety; (3) operability; (4) system compatibility; (5) serviceability; (6) crew acceptability; (7) crew time; (8) development risk; and (9) operating cost. A hot air oven, electrically heated food tray, and microwave oven were selected for further consideration and analysis. Passive, semi-active, and active food preparation approaches were also studied in an effort to determine the optimum method for heating rehydrated food. Potential complexity, cost, vehicle impact penalties, and palatability were considered in the analysis. A summary of the study results is provided along with cost estimates for each of the potential sytems

Biological Prognostic Markers in Chronic Lymphocytic Leukemia

Directory of Open Access Journals (Sweden)

Vladimíra Vroblová

2009-01-01

Full Text Available Chronic lymphocytic leukemia (CLL is the most frequent leukemic disease of adults in the Western world. It is remarkable by an extraordinary heterogeneity of clinical course with overall survival ranging from several months to more than 15 years. Classical staging sytems by Rai and Binet, while readily available and useful for initial assessment of prognosis, are not able to determine individual patient’s ongoing clinical course of CLL at the time of diagnosis, especially in early stages. Therefore, newer biological prognostic parameters are currently being clinically evaluated. Mutational status of variable region of immunoglobulin heavy chain genes (IgVH, cytogenetic aberrations, and both intracellular ZAP- 70 and surface CD38 expression are recognized as parameters with established prognostic value. Molecules regulating the process of angiogenesis are also considered as promising markers. The purpose of this review is to summarize in detail the specific role of these prognostic factors in chronic lymphocytic leukemia.

NEBULAS A High Performance Data-Driven Event-Building Architecture based on an Asynchronous Self-Routing Packet-Switching Network

CERN Multimedia

Costa, M; Letheren, M; Djidi, K; Gustafsson, L; Lazraq, T; Minerskjold, M; Tenhunen, H; Manabe, A; Nomachi, M; Watase, Y

2002-01-01

RD31 : The project is evaluating a new approach to event building for level-two and level-three processor farms at high rate experiments. It is based on the use of commercial switching fabrics to replace the traditional bus-based architectures used in most previous data acquisition sytems. Switching fabrics permit the construction of parallel, expandable, hardware-driven event builders that can deliver higher aggregate throughput than the bus-based architectures. A standard industrial switching fabric technology is being evaluated. It is based on Asynchronous Transfer Mode (ATM) packet-switching network technology. Commercial, expandable ATM switching fabrics and processor interfaces, now being developed for the future Broadband ISDN infrastructure, could form the basis of an implementation. The goals of the project are to demonstrate the viability of this approach, to evaluate the trade-offs involved in make versus buy options, to study the interfacing of the physics frontend data buffers to such a fabric, a...

Ordered structures in rotating ultracold Bose gases

International Nuclear Information System (INIS)

Barberan, N.; Dagnino, D.; Lewenstein, M.; Osterloh, K.

2006-01-01

Two-dimentional systems of trapped samples of few cold bosonic atoms submitted to strong rotation around the perpendicular axis may be realized in optical lattices and microtraps. We investigate theoretically the evolution of ground state structures of such systems as the rotational frequency Ω increases. Various kinds of ordered structures are observed. In some cases, hidden interference patterns exhibit themselves only in the pair correlation function; in some other cases explicit broken-symmetry structures appear that modulate the density. For N<10 atoms, the standard scenario, valid for large sytems is absent, and is only gradually recovered as N increases. On the one hand, the Laughlin state in the strong rotational regime contains ordered structures much more similar to a Wigner molecule than to a fermionic quantum liquid. On the other hand, in the weak rotational regime, the possibility to obtain equilibrium states, whose density reveals an array of vortices, is restricted to the vicinity of some critical values of the rotational frequency Ω

Poročanje o sporu glede otočja Diaoyu/Diaoyutai/Senkaku v izbranih slovenskih medijih

Directory of Open Access Journals (Sweden)

Sasa ISTENIČ

2015-07-01

Full Text Available The dispute over the sovereignty of the Diaoyu/Diaoyutai/Senkaku islands remains a source of significant international tension. Given that any miscalculation could lead to a war with unimaginable consequences, the issue has gained media attention across the world. Buttressed with the general newsworthiness of an international conflict, Slovene media has also been attentive to report on the islands’ controversy. Although the remote East Asian region is far down the list of Slovenia’s priorities and ambitions of its politicians, national commercial considerations are connected with a stable and secure environment in East Asia. By applying a combined quantitative and qualitative content analysis of the news stories on the dispute published in Slovene major print and online daily newspapers between 2010 and 2013, the present paper examines Slovene media’s coverage of the islands’ dispute.

Cholestéatome de l'oreille moyenne - étude rétrospective à propos de 145 cas

Science.gov (United States)

Bouaity, Brahim; Chihani, Mehdi; Nadour, Karim; Moujahid, Mountassir; Touati, Mliha; Darouassi, Youssef; Ammar, Haddou

2014-01-01

L'otite moyenne chronique cholestéatomateuse représente une entité fréquente et dangereuse en chirurgie otologique, mettant en jeu le pronostic fonctionnel auditif et exposant à des complications redoutables justifiant pleinement le recours exclusif à un traitement chirurgical et à un suivi post-opératoire rigoureux. Dans le but de mettre le point sur les caractéristiques épidémiologiques, cliniques, thérapeutiques et évolutives de cette pathologie, nous avons mené une étude rétrospective, étalée sur 11 ans et portant sur 145 cas de cholestéatome de l'oreille moyenne opérés au sein du service d'oto-rhino-laryngologie et chirurgie cervico-faciale de l'hôpital militaire Avicenne de Marrakech. PMID:25120876

Over-exposure effects on the distortion product otoacoustic emission

DEFF Research Database (Denmark)

Reuter, Karen

, however. In the present study it was investigated, whether Distortion Product OtoAcoustic Emission (DPOAE) parameters exist, which indicate the early stage of a hearing loss. DPOAE was obtained with high frequency resolution, and its characteristic spectral fine structure was analyzed. Data of subjects...... belonging to different groups of age and exposure history were obtained and compared. Controlled sound/ noise exposure experiments were performed to observe changes in DPOAE characteristics. The DPOAE of all tested subjects feature the typical fine structure pattern. The fine structure pattern is highly...... individual and stable over time. No unequivocal relation between the characteristics of the DPOAE fine structure and the state of hearing could be found. It is suggested to eliminate the DPOAE fine structure in the DPOAE measurement and to establish a reference zero from a large amount of DPOAE data...

On the wave induced responses for a high-speed hydrofoil catamaran. Part 2. Cabin connected to hull by spring and response to vibration; Suichuyokutsuki kosoku sodotei no harochu oto ni tsuite. 2. Dokuritsu kozogata cabin to yodo oto

Energy Technology Data Exchange (ETDEWEB)

Nobukawa, H; Kitamura, M; Kawamura, T [Hiroshima University, Hiroshima (Japan). Faculty of Engineering

1996-04-10

A high-speed hydrofoil catamaran under development has such a structure that an independent cabin is mounted on catamaran hulls, the cabin is connected with the hulls by using four soft springs, and hydrofoils are attached to the front and rear of the cabin. The structural design conception was as follows: the self-weight of the cabin is supported by lifting power of the hydrofoils while the boat is cruising; longitudinal motions of the catamaran hulls are absorbed by soft spring struts to make the motions more difficult to be transmitted into the cabin; and vibration excited by engines rotating at high speeds, attached to rear of the catamaran hulls, is not transmitted directly to the cabin structurally. A towing experiment was carried out by using divided models of about 1/10 scale in counter waves and regular waves to investigate their vibration response characteristics in waves. Furthermore, an experimental boat made of aluminum alloy with about 1/3 scale of the design boat was attached with composite structural struts made of springs and rubber parts to perform cruising experiments on an actual sea area. As a result, it was found that vibration excited by main engines in the catamaran hulls is transmitted very little to the cabin. 2 refs., 10 figs., 1 tab.

Measurement of circulation time distribution in a shaking vessel; Yodo kakuhan sonai no junkan jikan bunpu no sokutei

Energy Technology Data Exchange (ETDEWEB)

Kato, Y; Hiraoka, S; Tada, Y; Ue, T [Nagoya Institute of Technology, Nagoya (Japan); Koh, S [Toyo Engineering Corp., Tokyo (Japan); Lee, Y [Keimyung University, (Korea, Republic of)

1996-01-20

The circulation time distribution of a liquid in a horizontally shaking vessel was observed by tracing particle motion with the liquid. The distribution was affected by the operating conditions. The distribution was monotonous and the flow in the vessel was almost rotational flow at large Fr number. The circulation flow rate q{sub c} derived from the mean circulation time was correlated with Nq{sub c} = 22Fr{sup 2.1}Re{sup 0.2}(d/D){sup -2.6}, where Nq{sub c}, Fr and Re were the dimensionless numbers defined as q{sub c}/Nd{sup 3}, N{sup 2}D/g and Nd{sup 2}/{nu}, respectively, and q{sub c} was defined as {pi}D{sup 2}H/4t{sub c}. It was found from the comparison of the mean circulation time with the mixing time that complete mixing was achieved after about 16 circulations. 12 refs., 9 figs., 1 tab.

Relationships between mountain pine and climate in the French Pyrenees (Font-Romeu studied using the radiodensitometrical method

Directory of Open Access Journals (Sweden)

Rolland, Cristian

1994-12-01

Full Text Available A radiodensitometrical study was carried out on 46 Pinus uncinata (Ramond in Font-Romeu (French Pyrenees. Correlation functions with monthly climatical data were calculated using separately the ring-widths, the earlywood and the latewood densities. The Mountain Pine shows narrow rings (1.5 mm and a high sensitivity to climate (M.S. = 0.221, but it does not seem to suffer from drought despite the dryness of the climate (788 mm rainfall per year. This species is more sensitive to temperature than to precipitation, since temperature governs latewood formation. A hot spring and a mild autumn with maximum temperatures above threshold levels will extend the growing period. A warm autumn also increases the latewood density, whereas cold nights during the previous year's autumn are unfavourable to growth because they may affect the cambium and bud initiations.

[es] Se ha llevado a cabo un trabajo densitométrico sobre 46 Pinus uncinata (Ramond en Font-Romeu (Cerdaña francesa. Las funciones de correlación con el clima han sido calculadas sucesivamente con el espesor de los anillos de crecimiento, la densidad de la madera temprana y de la madera tardía. Esta especie produce anillos de crecimiento delgados (1.5 mm y presenta una elevada sensibilidad con el clima (S.M. = 0.221 pero no parece afectada por la falta de lluvia aunque el clima es más xérico (788 mm/ año. La madera tardía parece muy sensible a las temperaturas. Una primavera cálida ejerce un efecto favorable y un otoño suave con temperaturas máximas superiores a límites críticos permite continuar su desarollo. De la misma manera un otoño caliente aumenta la densidad de la madera tardía aunque las noches frías durante el otoño precedente son desfavorables para el crecimiento porque pueden afectar al Inicio de las yemas y del cambium.
[fr] Une étude radiodensitométrique de46 Pinus uncinata (Ramond a été réalisée à Font-Romeu (Pyrénées Françaises. Les

Revista de la Competencia y la Propiedad Intelectual | Año 5, Número 8, Otoño 2009

OpenAIRE

Ruiz Díaz, Gonzalo; Ruiz Díaz, Gonzalo; Instituto Nacional de Defensa de la Competencia y de la Protección de la Propiedad Intelectual, INDECOPI. Escuela de la Competencia y la Propiedad Intelectual; Instituto Nacional de Defensa de la Competencia y de la Protección de la Propiedad Intelectual, INDECOPI. Escuela de la Competencia y la Propiedad Intelectual; Ruiz Díaz, Gonzalo; Instituto Nacional de Defensa de la Competencia y de la Protección de la Propiedad Intelectual, INDECOPI. Escuela de la Competencia y la Propiedad Intelectual

2009-01-01

La Revista tiene como propósito fomentar la discusión y el intercambio de ideas y conocimientos acerca de los temas que afectan la concurrencia de los actores en los mercados y el desarrollo de la innovación y la propiedad intelectual. Aunque su contenido enfatiza el análisis económico y jurídico, también da cabida a contribuciones de otras disciplinas como las ciencias sociales y la administración. La Revista busca contribuir al análisis de las teorías sobre competencia y propiedad intelectu...

Structural analyses of very large semi-submersibles in waves; Choogata hansensuishiki futai no harochu kozo oto kaiseki

Energy Technology Data Exchange (ETDEWEB)

Iijima, K.; Yoshida, K.; Suzuki, H. [The University of Tokyo, Tokyo (Japan)

1997-08-01

An analysis method in which the technique of a vehicle obtained when a three-dimensional singular point distribution method and Kagemoto`s mutual interaction theory are combined was expanded for the fluid area was proposed as the structural analysis of very large semi-submersibles in waves. A partial structure method is used for the structure. In a fluid area, the number of unknown quantities appearing in a final expression could be largely reduced by introducing the new concept of a group body. In this process, both hydro-elasticity and hydrodynamic mutual interaction are considered. As a result, floating bodies that could not be previously calculated can be modeled as a three-dimensional frame structure and the response analysis in waves can be carried out without damaging the accuracy. The calculation result is used as the input data required for analyzing the structural fatigue locally during structural design of very large semi-submersibles in the 3,000 (m) class. This study can present a series of procedures between the response analysis of very large floating bodies in waves and the structural design. 11 refs., 14 figs., 1 tab.

Prevalence of hearing loss among high risk newborns hospitalized in hospitals affiliated to Tehran University of Medical Sciences

Directory of Open Access Journals (Sweden)

Ali Zamani

2010-04-01

Full Text Available "n Normal 0 false false false EN-US X-NONE AR-SA MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi;} Background: American pediatric Association proposes to screen all neonates with Oto-Acoustic Emission (OAE. In developing countries, because of several limitations, health policy makers recommend to screen only in high risk patients. This study is performed with the aim to screen hearing loss in 950 high risk newborns hospitalized in hospitals affiliated to Tehran University using the OAE test."n"nMethods: A total of 950 neonates hospitalized in the Neonatal and NICU wards of Vali-e-Asr, Shariati, Medical Center and Bahrami Hospitals during the years 2004-2006 who showed at least one risk factor using TEOAE hearing test were enrolled into this cross-sectional descriptive analytical study and were diagnosed with mild deafness and total deafness. Blood exchange due to hyperbillirubinemia, septicemia, congenital heart disease, the fifth minute apgar scores below six, PROM more than six hours, epilepsia, need to NICU more than five hours, pneumonia and Oto-Toxic drugs were considered as risk factors. Data was past medical history, current disease, admission cause, sign & symptoms and complications of disease."n"nResults: Multivariate logistic regression and paired t-test showed that blood exchange, low birth weight and low

Algunas observaciones entomológicas relacionadas con el paludismo en Lima

Directory of Open Access Journals (Sweden)

Alberto Cornejo Donayre

1944-09-01

Full Text Available Hemos encontrado que de las dos especies de Anopheles, A. pseudopunctipennis y A. punctimacula presentes en los Valles del Rímac y del Santa Eulalia, el pseudopunctipennis sería el trasmisor responsable de la elevada morbilidad palúdica existente en estos valles, ya que sus criaderos se hallan cercanos a los lugares poblados (en ocasiones solo a unos metros, porque los zancudos adultos tienen marcados hábitos domésticos, pues en considerable número se les encuentra en el interior de las habitaciones humanas; y sobre todo porque en las disecciones practicadas se verificó que el porcentaje con infección natural está dentro de los límites señalados para las localidades donde el paludismo es común. El tipo de criadero preferido por el A. pseudopunctipennis, está constituido por colecciones de agua limpia existentes entre las piedras situadas a pocos metros de las márgenes del río, criaderos que abundan cuando el río disminuye su caudal. Estos criaderos tienen en su superficie gran cantidad de algas verdes y por lo general están directamente expuestos al sol. Se verificó que en los alrededores de la ciudad de Lima, el A. pseudopunctipennis se reproduce durante los meses del otoño e invierno en este mismo tipo de criaderos ( 1 . Las observaciones efectuadas indican que la mayor densidad anofelina se alcanza de Marzo a Abril y que el incremento del índice esporozoítico corresponde al descenso de la temperatura y el aumento de la humedad atmosférica que se registran durante los meses de otoño. El número reducido de A. punctimacula capturados en el interior de las habitaciones humanas y el no haber encontrado sus criaderos, nos obliga a suponer que las colecciones de agua que sirven de Criaderos al A. pseudopunctipennis, no reunen las condiciones que la especie anterior exigiría; por consiguiente, es probable que no desempeñe rol notable en la trasmisión de la malaria en los lugares donde hemos capturado a esta especie.

Ciclos de actividad diaria y estacional de un gremio de saurios en las dunas de arena de Viesca, Coahuila, México Daily and seasonal activity patterns of a lizard guild in the sand dunes of Viesca, Coahuila, Mexico

Directory of Open Access Journals (Sweden)

Cristina García-De la Peña

2007-06-01

Full Text Available En el 2002 se evaluaron los ciclos de actividad diaria y estacional de los saurios Uta stejnegeri, Uma exsul y Aspidoscelis marmorata en un hábitat de dunas al suroeste de Coahuila, México. Se recorrió un transecto de 500 m, cada hora (de 0700 a 1900 h durante 7 días, en primavera, verano y otoño. Se registró el número de individuos activos por especie, la temperatura del aire y del sustrato, y la humedad relativa. La amplitud de nicho temporal se calculó mediante el Índice estandarizado de Levins, y el traslape de nicho mediante el método de Pianka. En las 3 estaciones del año U. stejnegeri inició su actividad más temprano que U. exsul, y ésta, a su vez, se registró antes que A. marmorata. Las 3 especies presentaron un ciclo de actividad bimodal durante primavera y verano, y unimodal en otoño. Aspidoscelis marmorata presentó la menor amplitud de nicho temporal durante las 3 estaciones. La temperatura corporal de cada especie y la temperatura ambiental parecen determinar los patrones de actividad de este gremio de saurios en Viesca.In 2002, daily and seasonal activity patterns of the lizards Uta stejnegeri, Uma exsul, and Aspidoscelis marmorata were evaluated in a dune habitat in the southwestern portion of Coahuila, Mexico. Methods included surveying a 500 m transect once per hour between 0700 and 1900 for 7 days each season during the spring, summer and fall. The number of active lizards, air and substrate temperatures, and relative humidity were recorded. A standardized Levins Index and Pianka’s method were used to measure temporal niche breadth and overlap, respectively. In each of the 3 seasons, U. stejnegeri was active earlier than U. exsul, and U. exsul was active before A. marmorata. The 3 species showed a bimodal activity pattern during spring and summer, and unimodal in fall. Aspidoscelis marmorata showed the smallest niche breadth in the 3 seasons. For each species, preferred body temperature and environmental

Detection of chaotic determinism in time series from randomly forced maps

Science.gov (United States)

Chon, K. H.; Kanters, J. K.; Cohen, R. J.; Holstein-Rathlou, N. H.

1997-01-01

Time series from biological system often display fluctuations in the measured variables. Much effort has been directed at determining whether this variability reflects deterministic chaos, or whether it is merely "noise". Despite this effort, it has been difficult to establish the presence of chaos in time series from biological sytems. The output from a biological system is probably the result of both its internal dynamics, and the input to the system from the surroundings. This implies that the system should be viewed as a mixed system with both stochastic and deterministic components. We present a method that appears to be useful in deciding whether determinism is present in a time series, and if this determinism has chaotic attributes, i.e., a positive characteristic exponent that leads to sensitivity to initial conditions. The method relies on fitting a nonlinear autoregressive model to the time series followed by an estimation of the characteristic exponents of the model over the observed probability distribution of states for the system. The method is tested by computer simulations, and applied to heart rate variability data.

TMX magnet control system

International Nuclear Information System (INIS)

Goerz, D.A.

1978-01-01

A control system utilizing a microcomputer has been developed that controls the power supplies driving the Tandem Mirror Experiment (TMX) magnet set and monitors magnet coil operation. The magnet set consists of 18 magnet coils that are driven by 26 dc power supplies. There are two possible modes of operation with this system: a pulse mode where the coils are pulsed on for several seconds with a dc power consumption of 16 MW; and a continuous mode where the coils can run steady state at 10 percent of maximum current ratings. The processor has been given an active control role and serves as an interface between the operator and electronic circuitry that controls the magnet power supplies. This microcomputer also collects and processes data from many analog singal monitors in the coil circuits and numerous status signals from the supplies. Placing the microcomputer in an active control role has yielded a compact, cost effective system that simplifies the magnet system operation and has proven to be very reliable. This paper will describe the TMX magnet control sytem and discuss its development

THE EPISTEMOLOGICAL PERSPECTIVE OF FRACTIONAL RESERVE BANKING AND FULL RESERVE BANKING: WHERE ISLAMIC BANKING SHOULD STAND?

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Yaser Taufik Syamlan

2017-06-01

Full Text Available Objectives – this research is aimed to compare those epistemological bases to the mindset of Islamic Bank and try to drive the philosophy in practical operation whether based on the Fractional Reserve Banking Sytem (RBS or 100% RBS and analyze the challenges in deploying the 100%RBS. Methods - This research will be conducted based on an extensive literature review.Results - Based on the epistemological analysis of money and the business cycle as well as the views of Islamic scholars, 100%RBS should be the best for Islamic Bank. There are four types of 100% RBS namely Pure Commodity Money, Sovereign Money, Narrow Banking, and Limited Purpose Banking. To deploy it into the economic system, another philosophical work should be done to choose one of the types and strengthen it so that the theory of 100%RBS can be implemented for the goodness of Islamic Bank.  Conclusion - In Conclusions, Based on the epistemology defined by Islamic Scholars, FractRBS has more mafsadah if we compare to the maslahah. Therefore, 100% RBS should be better for the Islamic Bank.

A Collaborative Project for the Development of Energy Amplifier

International Nuclear Information System (INIS)

Joo, H. K.; Kim, S. J.; Kim, Y. H.; Lee, Y. W.; Cho, C. H.; Song, T. Y.

2009-11-01

An energy amplifier can be an option for the future system for electricity generation and for management of spent fuel. An energy amplifier system is composed of a proton accelerator and a proton transportation system, a target system, a subcritical reactor, and a heat transfer system. A development plan for energy amplifier should be individually prepared for each sub-sytem. For the development of a subcritical reactor, a feasibility and conceptual studies is recommended to be carried out till the basic research phase which is performed with the development of the accelerator system. The feasibility study needs 1∼2 years of research period and 1.5 man-year of efforts. The conceptual design for the subcritical reactor will determine a reactor concept, the power of reactor and accelerator, the interface with a target system, fuel design, the performance and safety analysis of the core, and the fuel cycle option including thorium cycle, and it requires 2∼3 years of research period and 6 man-year of man power

Design and development of hybrid energy generator (photovoltaics) with solar tracker

Science.gov (United States)

Mohiuddin, A. K. M.; Sabarudin, Mohamad Syabil Bin; Khan, Ahsan Ali; Izan Ihsan, Sany

2017-03-01

This paper is the outcome of a small scale hybrid energy generator (hydro and photovoltaic) project. It contains the photovoltaics part of the project. The demand of energy resources is increasing day by day. That is why people nowadays tend to move on and changes their energy usage from using fossil fuels to a cleaner and green energy like hydro energy, solar energy etc. Nevertheless, energy is hard to come by for people who live in remote areas and also campsites in the remote areas which need continuous energy sources to power the facilities. Thus, the purpose of this project is to design and develop a small scale hybrid energy generator to help people that are in need of power. This main objective of this project is to develop and analyze the effectiveness of solar trackers in order to increase the electricity generation from solar energy. Software like Solidworks and Arduino is used to sketch and construct the design and also to program the microcontroller respectively. Experimental results show the effectiveness of the designed solar tracker sytem.

Precise measurement of remanent magnetism of rocks under non-magnetic fields; Mujikaika deno ganseki zanryu jiki no seimitsu sokutei

Energy Technology Data Exchange (ETDEWEB)

Oda, Y; Nakatsuka, K [Tohoku University, Sendai (Japan)

1997-10-22

Various magnetic information data from solidification or deposition up to date are contained in rocks. For the analysis of remanent magnetism, in general, the stable thermal remanent magnetization and the secondary magnetization are separately evaluated using vector variations determined by the location changes of magnetic pole from ac demagnetization or thermal demagnetization. Especially, in geothermal fields, the remanent magnetism in rocks is complicated due to the predominant alteration. When the remanent magnetism of rocks can be precisely measured and the primary and secondary magnetization can be evaluated, important data can be obtained, which represent oriented core samples required for evaluating the geothermal reservoirs. A rock remanent magnetism measuring system using superconductive magnetic shield has been developed, to evaluate the location of magnetic pole. This system can distinguish the remanent magnetization in rocks, and can be applied to the remanent magnetism in rocks in which the location of dipole model is shifted from the center of core. Important basic data of orientation information in rocks can be provided. 6 figs.

Present status and future of simple measuring methods; Suishitsu kan`i sokutei gijutsu no genjo to hatten no hoko

Energy Technology Data Exchange (ETDEWEB)

Urano, K.; Ishii, S. [Yokohama National University, Yokohama (Japan)

1998-05-10

This paper discusses simple measuring methods for water quality. There are various purposes for measuring water quality. It is not necessary to measure the water quality in an official way by taking a lot of labor and cost. Simple measuring methods are often adopted. By applying simple methods, measuring points and frequency of main discharge processes can be increased, resulting in the detailed evaluation and monitoring. Easy safety check for earth filling waste and soil pollutants is realized. Daily inspection and atmospheric measurements at accidents and disasters are easily promoted. The simple methods require easy and rapid operation, sensibility, accuracy and reproducibility suitable for the purpose, small size apparatus, low cost for measurements, and safety against used harmful matters. Coloring reaction is utilized for most of the measuring principles of simple methods, which include tests using test papers, pack tests, colorimetric tests, and tests using photoelectric colorimeter. The bacteria detection includes titration methods using dropping bottles, tablets and syringes, and tests using test papers. A measuring kit for the enzyme immunity method is commercialized. Cooperation of experts, measuring operators at the site and citizens is also indispensable. 7 refs., 3 figs., 2 tabs.

Measurement results of BHTV logging at the geothermal well. 1; Chinetsusei ni okeru BHTV kenso no sokutei kekka. 1

Energy Technology Data Exchange (ETDEWEB)

Lin, S. [Geophysical Surveying and Consulting Co. Ltd., Tokyo (Japan); Nakanishi, S.; Shimizu, I. [Electric Power Development Co. Ltd., Tokyo (Japan)

1997-05-27

In association with excavation of the No. 135 steam producing well in the Onikubi geothermal power plant in Miyagi Prefecture, shapes of production zones and drilling-induced fracture (DIF) were acquired from the borehole televiewer (BHTV) data. The BHTV logging shoots sound waves onto well walls of wells filled with fluid and detects the reflection waves to investigate the state of the well walls. Vertical fracture with opening lengths from 2 to 3 m were found at depths of about 1232 m and 1312 m. Water run-off has occurred at a depth of about 1312 m during the excavation, to which these vertical fractures might have contributed possibly. In depths of about 1232 m and 1312 m, fractures inclining toward north-east direction and south-west direction are predominant. Some fractures in the depth of about 1333 m incline toward east-south-east direction and west-north-west direction. Fracture inclination azimuth in all of the present logging sections is predominantly in north-east direction and south-west direction. When the DIF is considered to show the maximum compression azimuth, the earth`s crust stress azimuth is generally in east-west direction, which crosses slightly obliquely with the running direction of the predominant fracture in this well. 1 ref., 7 figs.

Newborn hearing screening: a regional example for national care.

LENUS (Irish Health Repository)

Adelola, O A

2010-05-01

Congenital Permanent Childhood Hearing Impairment (PCHI) is known to have a negative effect on language acquisition, cognitive development and social integration. Since 2000 our department has implemented a UNHS program in the West of Ireland. We describe our experience and detail our results to date. All neonates born from October 2000 to November 2007 were screened using a 2-stage protocol. Transient evoked oto-acoustic emissions (TEOAEs) were used to screen all neonates, followed by automated auditory brainstem response (AABR) in those who did not pass TEOAE, and all neonates at audiological risk. 26,281 babies were born over the eight year period. 25,742 underwent the screening process, achieving a coverage rate of 98%. The prevalence of PCHI in the population tested was 1.21\\/1000 live births (31\\/25,731). Our results show that a hospital based 2-stage UNHS protocol using TEOAEs and AABR is accurate, feasible and effective.

Determinación de la frecuencia de Vibrio parahaemolyticus y otros vibriones halofilicos en alimentos preparados con productos marinos frescos y procesados

Directory of Open Access Journals (Sweden)

Amabilia Vilcapoma

2014-06-01

Full Text Available El trabajo se realizó durante las estaciones de verano a otoño de 1988, sobre un total de 122 muestras, correspondiendo 82 a pescado congelado y 40 a cebiches, en su mayoría de tipo "mixto"; todos procedentes de la ciudad de Lima. El procesamiento de las muestras y el aislamiento de los vibrio se efectuaron siguiendo la metodología recomendada por la FDA (1985, con algunas modificaciones. La identificación de las cepas se realizó en base a caracteristicas de colonia, morfología celular y pruebas bioquímicas diferenciales. Se obtuvieron 57 cepas presuntivas de vibriones halofílicos, de las cuales 42 procedieron de pescado congelado y 15 de "cebiches"; se identificaron 5 cepas de Vibrio parahaemoIyticus (8.8% y 14 cepas de Vibrio alginolyticus (24.6% 38 cepas de Vibrio no fueron especificados, catalogándose como Vlbrio sp. (66.6%.

Transoral robotic surgery-assisted excision of a congenital cervical salivary duct fistula presenting as a branchial cleft fistula.

Science.gov (United States)

Rassekh, Christopher H; Kazahaya, Ken; Livolsi, Virginia A; Loevner, Laurie A; Cowan, Andy T; Weinstein, Gregory S

2016-02-01

Congenital cervical salivary duct fistulae are rare entities and can mimic branchial cleft fistulae. Ectopic salivary tissue associated with these pharyngocervical tracts may have malignant potential. We present a case report of a novel surgical approach and review of the literature. A 27-year-old man presented with complaint of drainage from the right side of his neck since early childhood. A tract was found from the posterior tonsillar pillar into the neck and ectopic salivary tissue was found along the tract. A congenital hearing loss was also present. Transoral robotic (TORS)-assisted surgery was used in the management of this patient and allowed excellent visualization of the pharyngeal component of the lesion and a minimally invasive approach. The patient did well with no recurrence. TORS was helpful for management of a congenital salivary fistula and may be helpful for branchial cleft fistulae. These lesions may be associated with the branchio-oto-renal (BOR) syndrome. © 2015 Wiley Periodicals, Inc.

Chaos and complexity by design

Energy Technology Data Exchange (ETDEWEB)

Roberts, Daniel A. [Center for Theoretical Physics and Department of Physics,Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); School of Natural Sciences, Institute for Advanced Study,Princeton, NJ 08540 (United States); Yoshida, Beni [Perimeter Institute for Theoretical Physics,Waterloo, Ontario N2L 2Y5 (Canada)

2017-04-20

We study the relationship between quantum chaos and pseudorandomness by developing probes of unitary design. A natural probe of randomness is the “frame potential,” which is minimized by unitary k-designs and measures the 2-norm distance between the Haar random unitary ensemble and another ensemble. A natural probe of quantum chaos is out-of-time-order (OTO) four-point correlation functions. We show that the norm squared of a generalization of out-of-time-order 2k-point correlators is proportional to the kth frame potential, providing a quantitative connection between chaos and pseudorandomness. Additionally, we prove that these 2k-point correlators for Pauli operators completely determine the k-fold channel of an ensemble of unitary operators. Finally, we use a counting argument to obtain a lower bound on the quantum circuit complexity in terms of the frame potential. This provides a direct link between chaos, complexity, and randomness.

Imaging of orbital and visual pathway pathology

International Nuclear Information System (INIS)

Mueller-Forell, W.S.

2006-01-01

This is one of the first books to deal with imaging of pathology of the entire visual system. It is divided into two parts, general and special. In the general part, the most important basics of modern imaging methods are discussed, but with less emphasis on the physical background than in purely neuro-/radiological textbooks. Chapters are devoted to the meticulous presentation of imaging anatomy of the orbit and intracranial visual pathway. The latest knowledge on the indication, technique, and results of functional MR imaging is presented. Visual system impairment in the pediatric age group is also discussed. The special part of the book provides detailed descriptions of the symptoms and clinical and imaging findings in individual patients with orbital and intracranial pathologies. This book is specifically designed to be of value not only to neuroradiologists but also to ophthalmologists, neurosurgeons, oto-/rhino-laryngologists, and neurologists who require more detailed information on these special diseases. (orig.)

A designated centre for people with disabilities operated by Health Service Executive, Meath

LENUS (Irish Health Repository)

Adelola, O A

2010-05-01

Congenital Permanent Childhood Hearing Impairment (PCHI) is known to have a negative effect on language acquisition, cognitive development and social integration. Since 2000 our department has implemented a UNHS program in the West of Ireland. We describe our experience and detail our results to date. All neonates born from October 2000 to November 2007 were screened using a 2-stage protocol. Transient evoked oto-acoustic emissions (TEOAEs) were used to screen all neonates, followed by automated auditory brainstem response (AABR) in those who did not pass TEOAE, and all neonates at audiological risk. 26,281 babies were born over the eight year period. 25,742 underwent the screening process, achieving a coverage rate of 98%. The prevalence of PCHI in the population tested was 1.21\\/1000 live births (31\\/25,731). Our results show that a hospital based 2-stage UNHS protocol using TEOAEs and AABR is accurate, feasible and effective.

Chaos and complexity by design

International Nuclear Information System (INIS)

Roberts, Daniel A.; Yoshida, Beni

2017-01-01

We study the relationship between quantum chaos and pseudorandomness by developing probes of unitary design. A natural probe of randomness is the “frame potential,” which is minimized by unitary k-designs and measures the 2-norm distance between the Haar random unitary ensemble and another ensemble. A natural probe of quantum chaos is out-of-time-order (OTO) four-point correlation functions. We show that the norm squared of a generalization of out-of-time-order 2k-point correlators is proportional to the kth frame potential, providing a quantitative connection between chaos and pseudorandomness. Additionally, we prove that these 2k-point correlators for Pauli operators completely determine the k-fold channel of an ensemble of unitary operators. Finally, we use a counting argument to obtain a lower bound on the quantum circuit complexity in terms of the frame potential. This provides a direct link between chaos, complexity, and randomness.

Health research priorities in medical thesis at National University of Piura, 2010-2014

Directory of Open Access Journals (Sweden)

Nelson Purizaca-Rosillo

2016-02-01

Full Text Available OBJETIVES To determine the frequency of thesis to obtain the medical degree at the NationalUniversity of Piura (UNP whose aim was framed within the Peru's nationaland/or Piura's regionalHRP from 201Oto 2014. MATERIAL AND METHODS A cross-sectionalstudy was conducted.All thesis to obtain the medicaldegree registered at the library of the UNP and the specialized library of the human medicine faculty from 2010 to 2014 were included.According the aim of the thesis,it was determinedif it was related toa nationalor regionalHRP.We searched through Google Scholar if the thesis that met witha HRP hadbeen published in a scientific joumal. RESULTS 150 thesis were found in the study period. Only 15 (10% thesis hadas the main objective a nationalHRP and 1 (0.6% a regionalHRP.Besides,none of the thesis had been published. CONCLUSIONS Thereis a low frequency of medicalthesis that were framed within a nationaland/or regionalHRP.

Role of laser myringotomy in a pediatric otolaryngology practice: initial experience

Science.gov (United States)

Shah, Udayan K.

2001-05-01

A new technology (OtoLAM) to fenestrate the tympanic membrane with the carbon dioxide laser (CO2), in the office or the operating room, has been introduced over the last three years. While not new conceptually, this product offers the ability to easily create a precise window into the middle ear using a portable system. Controversy regarding the indications and benefits of this technique, amplified by the costs of the system and the marketing of the technology prior to extensive clinical testing, has plagued the clinical application of this technology. We report our experience over the past year with this system in a busy pediatric otolaryngology practice. Laser fenestration of the tympanic membrane has been useful for the insertion of tympanostomy tubes, and for the minimally invasive evaluation of the middle ear. Our small experience to date reveals that there is a limited role for laser tympanic membrane fenestration in a busy pediatric otolaryngology practice.

Imaging of orbital and visual pathway pathology

Energy Technology Data Exchange (ETDEWEB)

Mueller-Forell, W.S. (ed.) [Medical School Univ. of Mainz (Germany). Inst. of Neuroradiology

2006-07-01

This is one of the first books to deal with imaging of pathology of the entire visual system. It is divided into two parts, general and special. In the general part, the most important basics of modern imaging methods are discussed, but with less emphasis on the physical background than in purely neuro-/radiological textbooks. Chapters are devoted to the meticulous presentation of imaging anatomy of the orbit and intracranial visual pathway. The latest knowledge on the indication, technique, and results of functional MR imaging is presented. Visual system impairment in the pediatric age group is also discussed. The special part of the book provides detailed descriptions of the symptoms and clinical and imaging findings in individual patients with orbital and intracranial pathologies. This book is specifically designed to be of value not only to neuroradiologists but also to ophthalmologists, neurosurgeons, oto-/rhino-laryngologists, and neurologists who require more detailed information on these special diseases. (orig.)

L'otite moyenne chronique cholestéatomateuse de l'enfant: à propos de 30 cas

Science.gov (United States)

Touati, Mohamed Mliha; Darouassi, Youssef; Chihani, Mehdi; Bouaity, Brahim; Ammar, Haddou

2015-01-01

Le cholstéatome de l'oreille moyenne est une otite chronique qualifiée de dangereuse en raison de ses risques évolutifs et de ses complications potentiellement graves pouvant mettre en jeu le pronostic vital. L’évolution du cholestèatome est sensiblement différente entre l'adulte et l'enfant, avec une agressivité particulière des cholestèatomes pédiatriques nécessitant ainsi une prise en charge adéquate. Le but de notre travail est d'analyser à travers une revue bibliographique les particularités des otites moyennes chroniques cholestèatomateuses chez 30 enfants pris en charge dans le service d'oto-rhino-laryngologie de l'hôpital militaire Avicenne de Marrakech. Le traitement est exclusivement chirurgical, actuellement, la plupart des auteurs optent pour l'utilisation d'une technique fermée en première intention chez l'enfant PMID:26401218

FY1995 development of a novel rapid immunoassay technology; 1995 nendo shinkina kosoku men'eki sokutei gijutsu no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-03-01

By utilizing the phenomenon that the antigen induces association of VH and VL, which are the antigen-recognizing fragments of antibody, develop a novel rapid immunoassay technology which will eliminate the defects of conventional immunoassays, such as long measuring time and requirement of expensive large automated apparatus. In addition, develop a methodology to make Fvs with low VH-VL affinity but that associate tightly in the presence of antigen. Using a model anti-hen egg lysozyme antibody HyHEL-10 Fv and BlAcore, we have clarified the kinetic basis of the Fv stabilization by HEL. By labeling HyHEL-10 VH, VL with succinimide esters of fluorescein and tetramethylrhodamin, respectively, at their N-termini, we could successfully detect VH-VL association by the increment of fluorescence resonance energy transfer. As a result, 1 {mu} g/ml of antigen could be detected homogeneously in less than 5 minutes. Some VH-VL association measurement systems were made by utilizing M13 phage display of VH fragments of HyHEL-10, anti-nitrophenacetyl, anti-digoxin antibodies. (NEDO)

Photogrammetric measurement of two-dimensional small-amplitude waves; Hakuso suiryu no nijigen bisho shinpukuha no shashin sokuryoho ni yoru sokutei

Energy Technology Data Exchange (ETDEWEB)

Yoshino, F. [Tottori University, Tottori (Japan). Faculty of Engineering; Urata, K. [Hitachi Zosen Corp., Osaka (Japan); Kishi, H.

1996-01-25

A photogrammetric measurement method for two-dimensional small-amplitude waves were proposed where a diffuse reflection spot is used as an index point. An equation used to obtain the still water depth was introduced. This equation was confirmed experimentally by using a laser displacement sensor which is equivalent to a camera-index-point system in principle. To confirm the applicability of this method to waves form measurement, numerical simulations of measurement by this method were carried out for sinusoidal waves and a composed wave. The results of these simulations show that the small-amplitude waves can be measured with sufficient accuracy when the water surface inclination is small. 4 refs., 14 figs., 1 tab.

Measurement of organic carbon quantity at chemoautorophic bacterium; Kagaku dokuritsu eiyo saikin ni okeru yuki tansoryo no sokutei ni tsuite

Energy Technology Data Exchange (ETDEWEB)

Tsuda, I; Kato, K; Nozaki, K [Electrotechnical Laboratory, Tsukuba (Japan); Kurokawa, K [Tokyo University of Agriculture and Technology, Tokyo (Japan)

1996-10-27

Described herein is the method for analyzing quantity of organic carbon synthesized by chemoautotrophic bacterium. It is based on the combustion-infrared spectroscopy, which is normally adopted for quantitative analysis of organic carbon. The problems involved in the measurement of organic compounds synthesized by iron-oxidizing bacteria are noise by culture medium components, aging of gas analyzer and contamination with organic compounds from a silicon plug. The measures taken in this study against these problems include comparison of the results with a medium containing iron-oxidizing bacteria with those with a medium free of these bacteria, calibration with the standard solution for each measurement, and replacement of a silicone plug by a silicon cap. Organic carbon is measured by a TOC-5000 analyzer equipped with an automatic sample feeder ASI-5000. Biomass density is determined by the MPN method. It is confirmed that organic carbon quantity is almost in proportion to biomass density, a phenomenon which can be used to determine organic carbon quantity. 7 refs., 6 figs., 1 tab.

Qualitative attributes and postharvest conservation of green ears of maize grown on different cover crops in organic no-till system

Directory of Open Access Journals (Sweden)

Luiz Fernando Favarato

Full Text Available ABSTRACT Postharvest quality of sweet maize varies depending on the type of seed, soil, quality of fertilizer, climatic conditions, and stage of maturation. This study aimed to evaluate the post-harvest quality and shelf life of green ears of maize grown on three soil covers in organic no-till sytem. The study was conducted in the municipality of Domingos Martins, ES (20° 22'16.91" S and 41° 03' 41.83" W. The experiment was arranged in a randomized block design with six replications and five treatments, consisting of three cover crops in organic no-till system: black-oat straw, white lupin, oat/lupin intercrop and two systems, organic and conventional, without straw. Maize double hybrid AG-1051 was sown in a spacing of 1.00 x 0.20 m. The variables evaluated included relative percentage of grain, straw and cob, pH, titratable acidity, soluble solids, grain moisture and shelf life. The use of different straws in the organic no-till system does not influence the postharvest quality of green ears. Ears packed in polystyrene trays with plastic film are suitable for marketing until the fifth day of storage at room temperature.

Safety of CANDU nuclear power stations

International Nuclear Information System (INIS)

Snell, V.G.

1978-11-01

A nuclear plant contains a large amount of radioactive material which could be a potential threat to public health. The plant is therefore designed, built and operated so that the risk to the public is low. Careful design of the normal reactor systems is the first line of defense. These systems are highly resistant to an accident happening in the first place, and can also be effective in stopping it if it does happen. Independent and redundant safety sytems minimize the effects of an accident, or stop it completely. They include shutdown systems, emergency core cooling systems, and containment systems. Massive impairment of any one safety system together with an accident can be tolerated. This 'defence in depth' approach recognizes that men and machines are imperfect and that the unexpected happens. The nuclear power plant need not be perfect to be safe. To allow meaningful judgements we must know how safe the plant is. The Atomic Energy Control Board guidelines give one such measure, but they may overestimate the true risk. We interpret these guidelines as an upper limit to the total risk, and trace their evolution. (author)

Ventilation-air conditioner system in nuclear power plant

International Nuclear Information System (INIS)

Kubota, Ryuji; Sugisaki, Toshihiko.

1989-01-01

This invention concerns a ventilation-air conditioner system which enables, upon occurrence of accidents in a nuclear power plant, continuous operation for other adjacent nuclear power plants with no effect of accidents. Air supply system and exhaust system are operated during usual operaiton. If loss of coolants accidents should occur in an adjacent nuclear power plants, operation is switched from ventilation operaiton to the operation of re-cycling system based on an AND logic of three signals, that is, a pressure HIGH signal for the reactor container, a water level LOW signal for the reactor and a radioactivity signal of the ventilation-air conditioner sytem on the side of air supply in the nuclear power plant. Thus, nuclear reactor buildings of the nuclear power plant are from the external atmosphere. Therefore, the radioactivity HIGH signal for switching to the emergency air conditioner system of the nuclear power plant is not actuated due to the loss of coolant accidents in the adjacent nuclear power plant. In addition, since the atmospheric temperature in the nuclear reactor building can be maintained by a cooling device disposed to the recycling system, reactor shutdown can be prevented. (I.S.)

Spatial Analysis of Agricultural Landscape and Hymenoptera Biodiversity at Cianjur Watershed

Directory of Open Access Journals (Sweden)

YAHERWANDI

2006-12-01

Full Text Available Hymenoptera is one of the four largest insect order (the other three are Coleoptera, Diptera, and Lepidoptera. There are curerently over 115 000 described Hymenoptera species. It is clear that Hymenoptera is one of the major components of insect biodiversity. However, Hymenoptera biodiversity is affected by ecology, environment, and ecosystem management. In an agricultural areas, the spatial structure, habitat diversity, and habitat composition may vary from cleared landscapes to structurally rich landscape. Thus, it is very likely that such large-scale spatial patterns (landscape effects may influence local biodiversity and ecological functions. Therefore, the objective of this research were to study diversity and configuration elements of agricultural landscapes at Cianjur Watershed with geographical information sytems (GIS and its influence on Hymenoptera biodiversity. The structural differences between agricultural landscapes of Nyalindung, Gasol, and Selajambe were characterized by patch analyst with ArcView 3.2 of digital land use data. Results indicated that class of land uses of Cianjur Watershed landscape were housing, mixed gardens, talun and rice, vegetable, and corn fields. Landscape structure influenced the biodiversity of Hymenoptera. Species richness and the species diversity were higher in Nyalindung landscape compare to Gasol and Selajambe landscape.

New Brunswick Power Corporation annual report, 1993/94

International Nuclear Information System (INIS)

1994-01-01

Net income for New Brunswick Power in the year 1993/94 was $23.7 million, up from $1.1 million the previous year. Total revenues decreased by $7.4 million as decreases in export sales were greater than in-province load growth and due to the impacts of a 5% rate increase in 1992 and 2.9% increase in January 1994. In-province energy sales revenues totalled $732.8 million, an increase of $25.1 million from 1992/93. Residential energy sales increased by 2.1% while the those to industrial customers declined by 1.4%, due to continuing economic difficulties in the pulp and paper and mining sector. Out of province revenues decreased by $33.3 million or 19.7%, with total energy exports decreasing by 688.6 GWh to 2453.6 GWh. A significant highlight of the year was integration of the Belledune generating station onto the New Brunswick sytem in October. A state-of-the-art coal fired facility, Belledune will contribute 450 MW to the system. Its flue gas scrubber will reduce sulfur dioxide emissions by 90%. 6 figs., 9 tabs

Cermet-fueled reactors for advanced space applications

International Nuclear Information System (INIS)

Cowan, C.L.; Palmer, R.S.; Taylor, I.N.; Vaidyanathan, S.; Bhattacharyya, S.K.; Barner, J.O.

1987-12-01

Cermet-fueled nuclear reactors are attractive candidates for high-performance advanced space power systems. The cermet consists of a hexagonal matrix of a refractory metal and a ceramic fuel, with multiple tubular flow channels. The high performance characteristics of the fuel matrix come from its high strength at elevated temperatures and its high thermal conductivity. The cermet fuel concept evolved in the 1960s with the objective of developing a reactor design that could be used for a wide range of mobile power generating sytems, including both Brayton and Rankine power conversion cycles. High temperature thermal cycling tests for the cermet fuel were carried out by General Electric as part of the 710 Project (General Electric 1966), and by Argonne National Laboratory in the Direct Nuclear Rocket Program (1965). Development programs for cermet fuel are currently under way at Argonne National Laboratory and Pacific Northwest Laboratory. The high temperature qualification tests from the 1960s have provided a base for the incorporation of cermet fuel in advanced space applications. The status of the cermet fuel development activities and descriptions of the key features of the cermet-fueled reactor design are summarized in this paper

The LANSCE 805 MHZ RF System History and Status

CERN Document Server

Lynch, Michael; Tallerico, Paul J

2005-01-01

The Los Alamos Neutron Science Center (LANSCE) linear accelerator runs at 201.25 MHz for acceleration to 100 MeV. The remainder of the acceleration to 800 MeV is at 805 MHz. This is done with 44 accelerator cavity stages driven by 805 MHz klystrons. Each klystron has a peak power capability of 1.25 MeV. Originally, 97 klystrons were purchased, which was 70 from Varian/CPI and 27 from Litton. The 44 RF systems are laid out in sectors with either 6 or 7 klystrons per sector. The klystrons in each sector are powered from a common HV sytem. The current arrangement uses the Varian/CPI klystrons in 6 of the 7 sectors and Litton klystrons in the remaining sector. With that arrangement there are 38 CPI klystrons installed and 1 spare klystron per sector and 6 Litton klystrons installed in the final sector with 2 spares. The current average life of all of the operating and spare klystrons (52 total) is >112,000 filament hours and >93,000 HV hours. That is three times the typical klystron lifetime today f...

Beam position monitor system for storage rings

International Nuclear Information System (INIS)

Nakamura, M.; Hinkson, J.A.

1985-05-01

Beam position monitors (BPM) for synchrotron light storage rings usually consist of beam pickup electrodes, coaxial relays and a narrowband receiver. While accurate, these systems are slow and of limited use in the commissioning of an accelerator. A beam position monitor is described which is intended to be a principal diagnostic during debug and routine running of a storage ring. It is capable of measuring the position of a single bunch on the first or nth orbit to an accuracy of a few percent. Stored beam position is more accurately measured with averaging techniques. Beam position changes can be studied in a bandwidth from DC to a few MHz. The beam monitor electronics consist of a separate amplification, detection, and sampling channel for each beam pickup electrode. Fast switches in each channel permit selection of the nth turn for measurement (single bunch mode). A calibration pulse is injected into each channel after beam measurement to permit gain offsets to be measured and removed from the final data. While initially more costly than the usual beam position monitor system, this sytem will pay for itself in reduced storage ring debug and trouble shooting time. 5 refs., 5 figs

Application of PSD for low level alpha counting using liquid scintillation counting

International Nuclear Information System (INIS)

Krishnamachari, G.; Vaze, P.K.; Iyer, M.R.

1989-01-01

In the liquid scintillator the light produced by alpha particles decays differently than those produced by electrons. Pulse shape discrimination (PSD) methods are employed to estimate low levels of alpha emitting radionuclides by reducing the background due to either beta or gamma events. An attempt is being made to develop a liquid scintillation counting sytem using a simple PSD circuit to achieve a background of 0.01 counts/min. The PSD circuit is based on measuring zero cross over points to differentiate particle types. The input signal is first differentiated by a delay line and subsequently by a RC circuit. The width of the initial part of the doubly differentiated pulse is different for alpha and beta pulses. This width is converted to amplitude by a time-to-amplitude converter (TAC). The higher amplitude pulses from the TAC are due to alpha particles and they are separated by an integral discriminator. The output from the integral discriminator opens a linear gate to record the pulse height spectrum. The figure of merit of the PSD circuit and background in the alpha energy channel have been worked out using different scintillator types. (author). 4 figs

PERFORMANCE COMPARISON OF USART COMMUNICATION BETWEEN REAL TIME OPERATING SYSTEM (RTOS AND NATIVE INTERRUPT

Directory of Open Access Journals (Sweden)

Novian Habibie

2016-02-01

Full Text Available Comunication between microcontrollers is one of the crucial point in embedded sytems. On the other hand, embedded system must be able to run many parallel task simultaneously. To handle this, we need a reliabe system that can do a multitasking without decreasing every task’s performance. The most widely used methods for multitasking in embedded systems are using Interrupt Service Routine (ISR or using Real Time Operating System (RTOS. This research compared perfomance of USART communication on system with RTOS to a system that use interrupt. Experiments run on two identical development board XMega A3BU-Xplained which used intenal sensor (light and temperature and used servo as external component. Perfomance comparison done by counting ping time (elapsing time to transmit data and get a reply as a mark that data has been received and compare it. This experiments divided into two scenarios: (1 system loaded with many tasks, (2 system loaded with few tasks. Result of the experiments show that communication will be faster if system only loaded with few tasks. System with RTOS has won from interrupt in case (1, but lose to interrupt in case (2.

Freedom and Security — Responses to the Threat of International Terrorism

Science.gov (United States)

Tinnefeld, Marie-Theres

The September 11 attacs have led to a number of changes in the legislative framework of the EU member states. Governments intended to react quickly, powerfully and with high public visibility reactions in public to justify the power of technology in the interests of national security. The new goal is to search terrorist activity in the ocean of telecommunications data retained by communications providers and accessed by intelligence authorities. EU member states have to put in place a national data retention law by March 2009. In Germany, the most recent problem is the question of the legality of the secret online-surveillance and search of IT-Sytems, especially concerning of individual’s PCs. The German Federal Constitutional Court has held, that the area of governmental authority for intervention must be limited by the constitutional protection of human dignity and fundamental rights like information privacy, telecommunications secrecy and respect for the home. In February 2008 the highest German Court created a new human right of confidentially and integrity of IT-Systems. The decision has to be understood as a reaction to the widespread use of invisible information technology by legal authorities and their secret and comprehensive surveillance of the citizens.

X-ray effects on the activity of a Mg2+-dependent, Na+- and K+-activable microsomal membrane ATP-ase system

International Nuclear Information System (INIS)

Froehlich, D.

1978-01-01

The bahviour of a Mg 2+ -dependent, Na + - and K + -activable ATP-ase sytem on irradiation was investigated using a microsome fraction of guinea pig myocardial cells prepared by fractionated centrifugation. The Na + - and K + -activable component, transport-ATPase, was particularly radiation-sensitive. Three stages of development were observed for a 1,500 R radiation damage until 24 h p.r.. In the first stage, until 30 minutes p.r., the activity of transport-ATP-ase was inhibited. This was followed by repair processes which had reached a peak value clearly higher than the control values at 4 hours p.r.. In the third stage, the activity was reduced again; 15 and 24 hours after termination of exposure, values again were nearly the same as after 30 minutes where a maximum was observed for this radiation dose. Radiation-induced electrolyte displacements, active transport, and radiation-induced inhibition of transport-ATP-ase were correlated and discussed; the assumption was that changes in, the electrolyte conditions in the membranes on irradiation are at least partly due to the described inhibition of transport-ATP-ase. (orig./AJ) [de

Efectos del forraje diferido como cobertura de invierno en el crecimiento primaveral de las gramíneas tropicales Chloris gayana y Panicum coloratum

Directory of Open Access Journals (Sweden)

José A. Imaz

2017-01-01

Full Text Available En La Plata, Buenos Aires, Argentina, en un experimento en macetas a aire libre (condiciones de luz y temperatura naturales se evaluó el efecto del forraje diferido como cobertura invernal en 2 gramíneas tropicales C4 (Chloris gayana y Panicum coloratum. Plantas adultas fueron extraídas de un establecimiento ganadero, trasplantadas a macetas en un jardín experimental y después de crecer durante 111 días (2 de Febrero al 23 de Mayo sometidas a los tratamientos: (1 control [sin remoción del forraje diferido de otoño (DF]; y (2 remoción del forraje diferido de otoño (DFR a 15 cm del suelo. Se utilizaron 10 repeticiones por tratamiento y una planta por maceta (unidad experimental. Las plantas fueron cosechadas el 27 de Septiembre (después del invierno y nuevamente en Noviembre para medir la biomasa del rebrote primaveral en los estratos superior (>15 cm e inferior (<15 cm sobre el suelo, láminas, vainas y estolones. Se realizó un análisis alométrico para dilucidar la incidencia del estrés por frio y se registraron la temperatura del aire, la humedad relativa y la ocurrencia de heladas. Las plantas con forraje diferido alcanzaron una mayor biomasa (55‒80% que aquellas con remoción del forraje. Panicum coloratum mostró un ajuste significativo entre la biomasa total y la biomasa de los diferentes estratos para ambos tratamientos, mostrando buena tolerancia al estrés por frio. Por otro lado, C. gayana mostró  falta de ajuste de la biomasa y un mayor estrés por la remoción del forraje, mientras que las plantas sin remoción presentaron menor daño por frío y un mayor ajuste. La cobertura invernal del forraje diferido podría mejorar la productividad y supervivencia de estas especies forrajeras cuando son utilizadas en sistemas pastoriles templados. Estos resultados preliminares deben ser evaluados en condiciones de campo durante un mayor número de años, considerando diferentes estrategias de pastoreo. Palabras clave: Cobertura

Annual Activity Density of groundbeetles (Coleoptera: Carabidae) of a Celtis ehrenbergiana (Rosales: Celtidaceae) Forest of Buenos Aires Province, Argentina

Science.gov (United States)

Castro, Adela V.; Porrini, Darío P.; Cicchino, Armando C.

2014-01-01

Abstract The aim of this study was to describe the annual activity cycle, the sex ratio, and the relationship between the weather variables and activity density of the 16 most abundant carabid species of a typical southeastern region of Pampasia, Argentina. The study focused on the southernmost Celtis ehrenbergiana (Klotzsch) Liebmann ( =  C. tala Guillies ex Planch) native forest of the region, from March 2008 to March 2009, a period during which there was a marked draught associated with the La Niña phenomenon. Forty-five pitfall traps were emptied once every 2 wk, and the occurrence of larvae, tenerals, and subtenerals was recorded. Photoperiod, temperature, and precipitations explained 35% of the total variation in the catch. Total carabid activity was high in early autumn and late spring. Eight species reached their maximum activity in spring, five in winter, two in summer, and one in autumn. Possible reproductive strategies, the influence of different variables involved in the life cycles of the species, and the sex ratio and their limitations are discussed. RESUMEN El objetivo de este trabajo fue describir la proporción de sexos, el ciclo de actividad annual, la relación entre las variables meteorológicas y la actividad de las 16 especies más frecuentes de carábidos de una región típica del sudeste de la Pampasia, Argentina. El trabajo se enfocó en el talar, C. ehrenbergiana (Klotzsch) Liebmann ( =  C. tala Guillies ex Planch), más austral de la región, durante marzo 2008-marzo 2009, período marcado por una sequía asociada con el fenómeno La Niña. Se utilizaron 45 trampas “pitfall” recambiadas quincenalmente. Se registró la presencia de larvas, tenerales y subtenerales. El fotoperíodo, la temperatura y las precipitaciones explicaron el 35% de la variación en el número de total de individuos. La actividad total de los carábidos fue alta en otoño temprano y primavera tardía. Ocho especies alcanzaron el pico de m

Response characteristics of a long life type floating offshore airport in waves. 3rd Report. Response due to short waves and an attempt of active inclination control; Chojumyogata futaishiki kaijo kuko no harochu oto tokusei. Tanhachoiki no oto oyobi shisei seigyo no kokoromi

Energy Technology Data Exchange (ETDEWEB)

Hirayama, T.; Ma, N.; Nishio, O.; Sato, N. [Yokohama National University, Yokohama (Japan). Faculty of Engineering

1996-12-31

Notice was given on response characteristics in a short wavelength range of a large floating structure for an offshore airport consisting of semi-submersible replaceable type units, and influence of unit lacking. An attempt was also made on performing restoration of inclination change during unit lacking and suppression of long-cycle variation in waves by using air pressure control. The result of a numerical calculation based on a three-dimensional singular point method may be summarized as follows: mass force added vertically on columns in short wavelength range differs in the outer edges and the central part; relatively uniform values are shown in the central part; and interactive interference is recognized in wave forces in the vertical direction, but the influence therefrom decreases as the wave length decreases. Calculations on vertical movements and bending moments in waves were performed by using a mode synthesizing method. The calculations used fluid force which was calculated based on the three-dimensional singular point method utilizing symmetry with respect to each condition for a complete model plus unit lacking and unit lacking plus inclination control. As a result of verifying the calculations by using an experiment, relatively good agreement was achieved in either case. A high-frequency vibration experiment made clear the characteristics of elastic response in the short-wave length range. 14 refs., 14 figs.

Evidence and evidence gaps - an introduction.

Science.gov (United States)

Dreier, Gabriele; Löhler, Jan

2016-01-01

, databases, information portals with processed evidence as well as specific journals and finally teaching are appropriate vehicles. One problem is the multitude of information so that knowledge gaps may affect the clinical routine despite actually existing evidence. Generally, it still takes several years until new knowledge is implemented in daily routine. Tasks: The German Society of Oto-Rhino-Laryngology, Head and Neck Surgery (Deutsche Gesellschaft für Hals-, Nasen- und Ohren-Heilkunde, Kopf- und Hals-Chirurgie e.V., DGHNOKHC) and the Professional Association of Otolaryngologists (Deutscher Berufsverband der HNO-Ärzte e.V., BVHNO) have fundamental interest in supporting their members in generating, processing, and providing evidence as well as accompanying knowledge transfer. It encompasses the fields of diagnostics, therapy, and prognosis in the same way as prevention and applies to medicinal products as well as to medical devices or surgical procedures. The base for this is the regular assessment of evidence gaps, also in the area of established procedures, that has to be followed by a prioritization of research questions and the subsequent initiation of clinical research. In addition, large trials verifying therapies and diagnostics, for example in the context of daily conditions after approval, can only be conducted combining all resources in the ENT community. Method, results, and outlook: Together, the executive committees of the DGHNOKHC and the BVHNO founded the German Study Center of Oto-Rhino-Laryngology, Head and Neck Surgery (Deutsches Studienzentrum für Hals-, Nasen- und Ohren-Heilkunde, Kopf- und Hals-Chirurgie, DSZ-HNO). First projects have been initiated, among those a clinical trial on the therapy of sudden hearing loss supported by the BMBF and a survey on evidence gaps in oto-rhino-laryngology. It seems to be both reasonable and feasible to make available methodological expertise via such an infrastructure of a study center for physicians in

Advancement of the Eddy Current Testing using neural network technique. Development of 3-D finite element analysis sytem of elctro-magnetic field

International Nuclear Information System (INIS)

Sakai, Takayuki; Soneda, Naoki

1994-01-01

In PWR plants, an automatic recognition system of Eddy Current Testing (ECT) signals of steam generator tubes are strongly required to reduce inspectors' labor and to improve the reliability of the testing. Although the neural-network technique is very promising for this kind of system, it is necessary to evaluate its applicability to ECT signals throughly, where a database of the relationship of the defects and ECT signals plays a very important role. In this paper, a three dimensional finite element analysis system of electromagnetic field, which consists of an FEM code and pre/post processor, is developed to generate a database of ECT signals. T-Ω method and the edge element are employed in the FEM code to reduce the required computer memory. The code is verified through some comparisons with experiments and other calculations. (author)

RADON MITIGATION IN SCHOOLS: HVAC SYTEMS IN SCHOOLS TEND TO HAVE A GREATER IMPACT ON RADON LEVELS THAN HVAC SYSTEMS IN HOMES

Science.gov (United States)

The first part of this two-part paper discusses radon entry into schools, radon mitigation approaches for schools, and school characteristics (e.g., heating, ventilation, and air conditioing -- HVAC-- system design and operationg) that influence radon entry and mitigation system ...

[Implementation of Study Results in Guidelines and Adherence to Guidelines in Clinical Practice].

Science.gov (United States)

Waldfahrer, F

2016-04-01

Guidelines were introduced in hospital and practice-based otorhinolaryngology in the 1990s, and have been undergoing further development ever since. There are currently 20 guidelines on file at the German Society of Oto-Rhino-Laryngology, Head and Neck Surgery. The Society has cooperated in a further 34 guidelines. The quality of the guidelines has been continually improved by concrete specifications put forward by the Association of the Scientific Medical Societies in Germany [Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften e.V.]. Since increasing digitalisation has made access to scientific publications quicker and more simple, relevant study results can be incorporated in guidelines more easily today than in the analogue world. S2e and S3 guidelines must be based on a formal literature search with subsequent evaluation of the evidence. The consensus procedure for S2k guidelines is also regulated. However, the implementation of guidelines in routine medical practice must still be considered inadequate, and there is still a considerable need for improvement in adherence to these guidelines. © Georg Thieme Verlag KG Stuttgart · New York.

Comparison of Overnight Pooled and Standard Sputum Collection Method for Patients with Suspected Pulmonary Tuberculosis in Northern Tanzania

Directory of Open Access Journals (Sweden)

Stellah G. Mpagama

2012-01-01

Full Text Available In Tanzania sputum culture for tuberculosis (TB is resource intensive and available only at zonal facilities. In this study overnight pooled sputum collection technique was compared with standard spot morning collection among pulmonary TB suspects at Kibong’oto National TB Hospital in Tanzania. A spot sputum specimen performed at enrollment, an overnight pooled sputum, and single morning specimen were collected from 50 subjects and analyzed for quality, quantity, and time to detection in Bactec MGIT system. Forty-six (92% subjects’ overnight pooled specimens had a volume ≥5 mls compared to 37 (37% for the combination of spot and single morning specimens (P<0.001. Median time to detection was 96 hours (IQR 87–131 for the overnight pooled specimens compared to 110.5 hours (IQR is 137 right 137–180 for the combination of both spot and single morning specimens (P=0.001. In our setting of limited TB culture capacity, we recommend a single pooled sputum to maximize yield and speed time to diagnosis.

A Dual Phenotype of Periventricular Nodular Heterotopia and Frontometaphyseal Dysplasia in One Patient Caused by a Single FLNA Mutation Leading to Two Functionally Different Aberrant Transcripts

Science.gov (United States)

Zenker, Martin; Rauch, Anita; Winterpacht, Andreas; Tagariello, Andreas; Kraus, Cornelia; Rupprecht, Thomas; Sticht, Heinrich; Reis, André

2004-01-01

Two disorders, periventricular nodular heterotopia (PVNH) and a group of skeletal dysplasias belonging to the oto-palato-digital (OPD) spectrum, are caused by FLNA mutations. They are considered mutually exclusive because of the different presumed effects of the respective FLNA gene mutations, leading to loss of function (PVNH) and gain of function (OPD), respectively. We describe here the first patient manifesting PVNH in combination with frontometaphyseal dysplasia, a skeletal dysplasia of the OPD-spectrum. A novel de novo mutation, 7315C→A in exon 45 of the FLNA gene, was identified. It leads to two aberrant transcripts, one full-length transcript with the point mutation causing a substitution of a highly conserved leucine residue (L2439M) and a second shortened transcript lacking 21 bp due to the creation of an ectopic splice donor site in exon 45. We propose that the dual phenotype is caused by two functionally different, aberrant filamin A proteins and therefore represents an exceptional model case of allelic gain-of-function and loss-of-function phenotypes due to a single mutational event. PMID:14988809

Desarrollo del ensilado del alga Gracilaria chilensis para la alimentación del abalón rojo Haliotis rufescens

Directory of Open Access Journals (Sweden)

Alfonso Mardones

2015-05-01

Full Text Available En Chile, el principal insumo usado como alimento para abalones son las algas Gracilaria chilensis y Macrocystis pyrifera. Estas algas experimentan una notable baja de disponibilidad en otoño e invierno, lo cual trae consigo un aumento considerable de los precios, al tener que depender del abastecimiento desde áreas cada vez más alejadas de los centros de cultivo de abalones y, eventualmente, generando impactos ecológicos indirectos en sus poblaciones. El objetivo fue elaborar y evaluar un ensilado del alga G. chilensis para la alimentación de abalón rojo (Haliotis rufescens, determinando la cantidad de lixiviados generados durante el proceso, el cambio en la composición proximal del alga, la preferencia y consumo del abalón rojo de ensilado de G. chilensis. Se logró un producto ensilado de buenas características físicas, químicas y de conservación, así como una buena aceptación por parte del abalón.

Les carcinomes de la thyroïde: profils épidémiologique, clinique et thérapeutique, à propos de 102 cas

Science.gov (United States)

Touati, Mohamed Mliha; Aljalil, Abdelfettah; Darouassi, Youssef; Chihani, Mehdi; Lahkim, Mohammed; Fihri, Jawad Al Fassi; Bouaity, Brahim; Ammar, Haddou

2015-01-01

Les carcinomes thyroïdiens sont des tumeurs malignes assez rares, représentant 1% des cancers. Ils sont généralement de bon pronostic, et présentent des aspects cliniques et évolutifs variés selon leur origine histologique. Notre travail est une étude rétrospective portant sur 102 cas de carcinomes de la thyroïde, colligés sur un nombre total de 811 gestes chirurgicaux thyroïdiens, au service d'oto-rhino-laryngologie et de chirurgie cervico-faciale de l'hôpital militaire Avicenne de Marrakech, sur une période de 8 ans, allant de janvier 2006 à décembre 2013. Les carcinomes thyroïdiens atteignent le sujet jeune avant l’âge de 50 ans, en particulier le sexe féminin. La tendance dans les pays en voie de développement, comme dans le monde entier est en croissance continue, ceci peut être expliqué par l'amélioration des outils d'imagerie et des moyens diagnostiques cytologiques et anatomo-pathologiques. PMID:26405495

Negativ

OpenAIRE

Videmanová, Marie

2017-01-01

Inspirace k této soše vznikala postupně ze zkušeností z předchozí tvorby. Měla jsem oblibu ve spících lidech, v sochách lidských těl v životní velikosti. Tyto sochy jsem různou manipulací deformovala, přetvářela a tím je dostávala do nereálných poloh. Tyto změny umožnily do soch nahlížet, nahlížet do jejich snů. Sochy pak působily jako svaté výjevy z kostelů. Normální poloha spícího člověka se při otočení změnila v jakési gesto. Při této tvorbě série spících lidí, se mi během odlévání živých ...

On-line measurement of crystalline color by color-image processing system; Gazo shori system wo mochiita kessho no online iro sokutei

Energy Technology Data Exchange (ETDEWEB)

Okayasu, S.; Katayama, M.; Shinohara, T. [Ajinomoto Co. Inc., Tokyo (Japan)

1996-01-20

Aiming for the stable operation and the rationalization of factory plant, the color-image processing has been tried to introduce into the on-line system to measure the crystalline color of L-Lysine in its refining process. Because the practical spectro-photometry was used to be employed by manual measurement. In this paper, the calculation formula of the transmittance by spectrophotometry is theoretically introduced by analyzing the relation of Lambert-Beer`s law of luminous transparency with the Kubelka-Munk`s function of the luminous dispersion using color image data. The parameters of the calculation formula were decided by actual measurement, so that the formula with accuracy value of {plus_minus}3% elucidated the possible estimation of transmittance by spectrophotometry. The system was tested on a commercial plant, and some issues are discussed. 8 refs., 8 figs., 3 tabs.

Fiscal 1982 Sunshine Project research report. Development of bore hole measurement technology; 1982 nendo koseinai sokutei gijutsu no kaihatsu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1983-03-01

This report summarizes the fiscal 1982 research result on development of measuring instruments for information collection in geothermal bore holes under high-temperature high-pressure conditions. In development of high-temperature well logging cable, the new TFE Teflon insulated well logging cable (3,300m) applicable up to 320 degreesC was prepared. In development of digital well logging system, the data analyzer for edition and analysis of recorded digital logging data, the depth panel with an automatic depth correction mechanism, and the fiber optics controller were prepared. Preparation of the whole digital well logging system was thus completed. Field test was made at 3 wells in 2 geothermal areas. At the test well in Nigori-Gawa area, Hokkaido, performance test was made on the digital well logging system, TFE Teflon well logging cable, and improved winch completed in this fiscal year. At the same time, the radioactive well logging test using radioactive isotope showed the satisfactory result except neutron well logging. (NEDO)

Dualismos em duelo Dueling dualism

Directory of Open Access Journals (Sweden)

Anne Fausto-Sterling

2002-01-01

Full Text Available Os modos europeus e norte-americanos de entender como funciona o mundo dependem em grande parte do uso de dualismos - pares de conceitos, objetos ou sistemas de crenças opostos. Este ensaio enquadra especialmente três deles: sexo/gênero, natureza/criação e real/construído. Embora este texto verse sobre gênero, discuto regularmente o modo como as idéias de raça e gênero surgem a partir de supostos subjacentes sobre a natureza física do corpo. Entender como operam raça e gênero - em conjunto e independentemente - nos ajuda a compreender melhor como o social se torna corporificado.Euro-American ways of understanding how the world works depend heavily on the use of dualisms - pairs of opposing concepts, objects, or belief sytems. This text focuses especially on three of these: sex/gender, nature/nurture, and real/constructed. And although this text focuses on gender, I regularly discuss the ways in which the ideas of both race and gender emerge from underlying assumptions about the body's physical nature. Understanding how race and gender work - together and independently - help us learn more about how the social becomes embodied.

Demonstration project Klaipeda, Lithuania. Final evaluation of 1. year results after rehabilitation

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-07-01

In order to investigate various options for reduction of the district heating return temperature and for introduction of energy saving measures in the buildings, a demonstration area comprising eight buildings was selected. The eight buildings selected were typical 5-floor buildings built in 1982-89. This enabled the experience to be transferred to a maximum number of buildings in Klaipeda and in Lithuania, in general. All buildings had a one-string radiator system installed. Since 1991, the supply temperature in Klaipeda district heating system has been reduced. This has led to a lower indoor temperature, which has decreased from the design value 18 deg. C to 15 dec. C due to shortage of fuel. With such a low room temperature, the improved sytems may result in better comfort rather than in energy savings. The project has been implemented during a two-year period from heating season 97/98 to 98/99. The first year before the heating season 97/98, energy and flow meters were installed for measuring the existing heating and hot water consumption. For the next heating season 1998/1999, various energy saving measures were installed, and measurements were caried out again. After that, the energy consumption and temperature levels were analysed and compared for the two seasons. (au)

Long-term Simulation of Photo-oxidants and Particulate Matter Over Europe With The Eurad Modeling System

Science.gov (United States)

Memmesheimer, M.; Friese, E.; Jakobs, H. J.; Feldmann, H.; Ebel, A.; Kerschgens, M. J.

During recent years the interest in long-term applications of air pollution modeling systems (AQMS) has strongly increased. Most of these models have been developed for the application to photo-oxidant episodes during the last decade. In this contribu- tion a long-term application of the EURAD modeling sytem to the year 1997 is pre- sented. Atmospheric particles are included using the Modal Aerosol Dynamics Model for Europe (MADE). Meteorological fields are simulated by the mesoscale meteoro- logical model MM5, gas-phase chemistry has been treated with the RACM mecha- nism. The nesting option is used to zoom in areas of specific interest. Horizontal grid sizes are 125 km for the reginal scale, and 5 km for the local scale covering the area of North-Rhine-Westfalia (NRW). The results have been compared to observations of the air quality network of the environmental agency of NRW for the year 1997. The model results have been evaluated using the data quality objectives of the EU direc- tive 99/30. Further improvement for application of regional-scale air quality models is needed with respect to emission data bases, coupling to global models to improve the boundary values, interaction between aerosols and clouds and multiphase modeling.

Regulation techniques for smoothing active power in aggregated wind farms distributed within Spain

Energy Technology Data Exchange (ETDEWEB)

Martin-Martinez, Sergio; Vigueras-Rodriguez, Antonio; Gomez-Lazaro, Emilio [Universidad de Castilla-La Mancha, Albacete (Spain). Renewable Energy Research Inst.

2009-07-01

With the increasing production of wind power worldwide, power fluctuations have an impact on power system operation and costs. Power systems with high wind penetration gives rise to concerns about the adverse effects of wind farms on power operations and its staability. The integration of the power produced by wind farms is evaluated through ramp rates calculated as suggested by Parson et al. The worst cases regarding the power system are the most negative ramp rates in the Wind Farm, where the Power System has to compensate such drops in the wind power production. In most onshore wind farms production fluctuates much less than in offshore farms, due to two main reasons. First, offshore wind turbines are collected in a more reduced area, so fluctuations are more correlated. In addition, offshore meteorological conditions are often different than onshore. Furthermore, the variability of wind power is reduced when looking at a large interconnected sytem with geographically dispersed wind power production. This paper deals with a comparison of the smoothed out variability of wind power production time series for the single and aggregated wind farms, parting from their wind power production. The data analyzed come from a 1 year-period measurements of 9 wind farms spread over Spain. (orig.)

Development and evaluation of nitrendipine nanoemulsion for intranasal delivery.

Science.gov (United States)

Jain, Ratnesh; Patravale, Vandana B

2009-02-01

The clinical efficacy of Nitrendipine (NDP), a potent antihypertensive molecule, is limited due to its low oral bioavailability (10% to 20%) resulting from its extensive first-pass metabolism. The purpose of the present investigation was to enhance the bioavailability of NDP through formulating a nanoemulsion for its intranasal delivery. A Caproyl 90 based nanoemulsion sytem with Tween 80 as the surfactant, Transcutol P and Solutol HS-15 as solubiliser and cosurfactant respectively, was developed. A single isotropic region, which is considered as a bicontinuous nanoemulsion, was identified in the pseudo-ternary phase diagrams developed at various Tween 80: Transcutol P: Solutol HS-15 ratios. NDP was solubilized in a system consisting of Tween 80: Transcutol P: Solutol HS-15 at 1:2:1 weight ratio. The developed nanoemulsion was safe for nasal administration as confirmed by nasal histopathlogy studies with the mean globule size of 98.50 nm. The drug content per actuation was found to be 99.58 +/- 0.05%, with no significant changes over a period of one month. In vivo absorption studies revealed that NDP absorption from the nanoemulsion had a rapid onset of action and a relative bioavailability of 60.44%, significantly greater than the marketed oral tablets.

Summary: Experimental validation of real-time fault-tolerant systems

Science.gov (United States)

Iyer, R. K.; Choi, G. S.

1992-01-01

Testing and validation of real-time systems is always difficult to perform since neither the error generation process nor the fault propagation problem is easy to comprehend. There is no better substitute to results based on actual measurements and experimentation. Such results are essential for developing a rational basis for evaluation and validation of real-time systems. However, with physical experimentation, controllability and observability are limited to external instrumentation that can be hooked-up to the system under test. And this process is quite a difficult, if not impossible, task for a complex system. Also, to set up such experiments for measurements, physical hardware must exist. On the other hand, a simulation approach allows flexibility that is unequaled by any other existing method for system evaluation. A simulation methodology for system evaluation was successfully developed and implemented and the environment was demonstrated using existing real-time avionic systems. The research was oriented toward evaluating the impact of permanent and transient faults in aircraft control computers. Results were obtained for the Bendix BDX 930 system and Hamilton Standard EEC131 jet engine controller. The studies showed that simulated fault injection is valuable, in the design stage, to evaluate the susceptibility of computing sytems to different types of failures.

Principles of cobalt-60 teletherapy including an introduction to the compendium. Guidelines for the documentation of radiation treatment methods

International Nuclear Information System (INIS)

Cohen, M.

1984-01-01

A great deal of thought has been given in recent years to the documentation of individual patients and their diseases, especially since the computerization of registry sytems facilitates the storage and retrieval of large amounts of data, but the documentation of radiation treatment methods has received surprisingly little attention. The guidelines which follow are intended for use both internally (within radiotherapy centres) and externally when a treatment method is reported in the literature or transferred from one centre to another. The amount of detail reported externally will, of course, depend on the circumstances: for example, a published paper will usually mention only the most important of the radiation and physical parameters, but it is important for the department of origin to list all parameters in a separate document, available on request. These guidelines apply specifically to the documentation of treatment by external radiation beams, although many of the suggestions would also apply to treatment by small sealed sources (brachytherapy) and by unsealed radionuclides. Treatment techniques which involve a combination of external and internal sources (e.g. Ca. cervix uteri treatd by intracavitary sources plus external beam therapy) require particularly careful documentation to indicate the relationship bwtween dose distribution (in both space and time) achieved by the two modalities

Threshold-based prediction of the coagulation zone in sequential temperature mapping in MR-guided radiofrequency ablation of liver tumours

Energy Technology Data Exchange (ETDEWEB)

Rempp, Hansjoerg; Hoffmann, Ruediger; Buck, Alexandra; Claussen, Claus D.; Schick, Fritz; Clasen, Stephan [Eberhard Karls University of Tuebingen, Department on Diagnostic and Interventional Radiology, Tuebingen (Germany); Roland, Joerg; Kickhefel, Antje [Siemens Healthcare, Erlangen (Germany); Pereira, Philippe L. [Clinic for radiology, Nuclear Medicine and Minimal Invasive Therapies, SLK-Clinics, Heilbronn (Germany)

2012-05-15

To evaluate different cut-off temperature levels for a threshold-based prediction of the coagulation zone in magnetic resonance (MR)-guided radiofrequency (RF) ablation of liver tumours. Temperature-sensitive measurements were acquired during RF ablation of 24 patients with primary (6) and secondary liver lesions (18) using a wide-bore 1.5 T MR sytem and compared with the post-interventional coagulation zone. Temperature measurements using the proton resonance frequency shift method were performed directly subsequent to energy application. The temperature maps were registered on the contrast-enhanced follow-up MR images acquired 4 weeks after treatment. Areas with temperatures above 50 , 55 and 60 C were segmented and compared with the coagulation zones. Sensitivity and positive predictive value were calculated. No major complications occurred and all tumours were completely treated. No tumour recurrence was observed at the follow-up examination after 4 weeks. Two patients with secondary liver lesions showed local tumour recurrence after 4 and 7 months. The 60 C threshold level achieved the highest positive predictive value (87.7 {+-} 9.9) and the best prediction of the coagulation zone. For a threshold-based prediction of the coagulation zone, the 60 C cut-off level achieved the best prediction of the coagulation zone among the tested levels. (orig.)

Characterization of the EPRI Differential Absorption Lidar (DIAL) System. Final report. [For remote sensing of air pollutants

Energy Technology Data Exchange (ETDEWEB)

Baumgartner, R.A.; Depp, J.G.; Evans, W.E.; Grant, W.B.; Hawley, J.G.; March, R.G.; Murray, E.R.; Proctor, E.K.

1979-12-01

SRI International designed and constructed a DIfferential Absorption Lidar (DIAL) to provide EPRI with a mobile field system for remote measurements of SO/sub 2/, NO/sub 3/, and O/sub 3/. After field testing the lidar was prepared for the sytem calibration testing where lidar measurements were compared to in situ profiles of SO/sub 2/, NO/sub 2/, and O/sub 3/. This two-week field program determined overall system accuracy and reliability in measuring varying ambient gas concentrations. The lidar was then returned to SRI for detailed subsystem performance evaluations. Improvements were made wherever possible, and the lidar was prepared for further systems tests. Tests were made using an NO/sub 2/ sample chamber to simulate a calibrated NO/sub 2/ plume, and ambient measured NO/sub 2/ concentrations were compared with values from a regional air pollutant monitoring station. Following the local calibration and the systems field tests, SRI evaluated the performance and reliability of the EPRI lidar. Based on that evaluation, SRI undertook a major analysis of possible system improvements. Although the remote measuring capability had been successfully demonstrated in the field program, SRI makes several recommendations for systems improvements which would increase the lidar accuracy and reliability.

[Development of an ophthalmological clinical information system for inpatient eye clinics].

Science.gov (United States)

Kortüm, K U; Müller, M; Babenko, A; Kampik, A; Kreutzer, T C

2015-12-01

In times of increased digitalization in healthcare, departments of ophthalmology are faced with the challenge of introducing electronic clinical health records (EHR); however, specialized software for ophthalmology is not available with most major EHR sytems. The aim of this project was to create specific ophthalmological user interfaces for large inpatient eye care providers within a hospitalwide EHR. Additionally the integration of ophthalmic imaging systems, scheduling and surgical documentation should be achieved. The existing EHR i.s.h.med (Siemens, Germany) was modified using advanced business application programming (ABAP) language to create specific ophthalmological user interfaces for reproduction and moreover optimization of the clinical workflow. A user interface for documentation of ambulatory patients with eight tabs was designed. From June 2013 to October 2014 a total of 61,551 patient contact details were documented. For surgical documentation a separate user interface was set up. Digital clinical orders for documentation of registration and scheduling of operations user interfaces were also set up. A direct integration of ophthalmic imaging modalities could be established. An ophthalmologist-orientated EHR for outpatient and surgical documentation for inpatient clinics was created and successfully implemented. By incorporation of imaging procedures the foundation of future smart/big data analyses was created.

Threshold-based prediction of the coagulation zone in sequential temperature mapping in MR-guided radiofrequency ablation of liver tumours

International Nuclear Information System (INIS)

Rempp, Hansjoerg; Hoffmann, Ruediger; Buck, Alexandra; Claussen, Claus D.; Schick, Fritz; Clasen, Stephan; Roland, Joerg; Kickhefel, Antje; Pereira, Philippe L.

2012-01-01

To evaluate different cut-off temperature levels for a threshold-based prediction of the coagulation zone in magnetic resonance (MR)-guided radiofrequency (RF) ablation of liver tumours. Temperature-sensitive measurements were acquired during RF ablation of 24 patients with primary (6) and secondary liver lesions (18) using a wide-bore 1.5 T MR sytem and compared with the post-interventional coagulation zone. Temperature measurements using the proton resonance frequency shift method were performed directly subsequent to energy application. The temperature maps were registered on the contrast-enhanced follow-up MR images acquired 4 weeks after treatment. Areas with temperatures above 50 , 55 and 60 C were segmented and compared with the coagulation zones. Sensitivity and positive predictive value were calculated. No major complications occurred and all tumours were completely treated. No tumour recurrence was observed at the follow-up examination after 4 weeks. Two patients with secondary liver lesions showed local tumour recurrence after 4 and 7 months. The 60 C threshold level achieved the highest positive predictive value (87.7 ± 9.9) and the best prediction of the coagulation zone. For a threshold-based prediction of the coagulation zone, the 60 C cut-off level achieved the best prediction of the coagulation zone among the tested levels. (orig.)

Quantification of anthropogenic impact on groundwater-dependent terrestrial ecosystem using geochemical and isotope tools combined with 3-D flow and transport modelling

Science.gov (United States)

Zurek, A. J.; Witczak, S.; Dulinski, M.; Wachniew, P.; Rozanski, K.; Kania, J.; Postawa, A.; Karczewski, J.; Moscicki, W. J.

2015-02-01

Groundwater-dependent ecosystems (GDEs) have important functions in all climatic zones as they contribute to biological and landscape diversity and provide important economic and social services. Steadily growing anthropogenic pressure on groundwater resources creates a conflict situation between nature and man which are competing for clean and safe sources of water. Such conflicts are particularly noticeable in GDEs located in densely populated regions. A dedicated study was launched in 2010 with the main aim to better understand the functioning of a groundwater-dependent terrestrial ecosystem (GDTE) located in southern Poland. The GDTE consists of a valuable forest stand (Niepolomice Forest) and associated wetland (Wielkie Błoto fen). It relies mostly on groundwater from the shallow Quaternary aquifer and possibly from the deeper Neogene (Bogucice Sands) aquifer. In July 2009 a cluster of new pumping wells abstracting water from the Neogene aquifer was set up 1 km to the northern border of the fen. A conceptual model of the Wielkie Błoto fen area for the natural, pre-exploitation state and for the envisaged future status resulting from intense abstraction of groundwater through the new well field was developed. The main aim of the reported study was to probe the validity of the conceptual model and to quantify the expected anthropogenic impact on the studied GDTE. A wide range of research tools was used. The results obtained through combined geologic, geophysical, geochemical, hydrometric and isotope investigations provide strong evidence for the existence of upward seepage of groundwater from the deeper Neogene aquifer to the shallow Quaternary aquifer supporting the studied GDTE. Simulations of the groundwater flow field in the study area with the aid of a 3-D flow and transport model developed for Bogucice Sands (Neogene) aquifer and calibrated using environmental tracer data and observations of hydraulic head in three different locations on the study area

Anoxia in a coastal bay: case study of a seasonal event

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C. H. Lechuga-Devéze

2001-06-01

Full Text Available Bahía Concepción (Gulf of California was studied to describe some extremely low dissolved-oxygen values at the bottom of the bay. Surveys included measurements of vertical distribution of temperature, dissolved oxygen, nitrate, nitrite, phosphates and hydrogen sulfide. Thermal stratification from early spring to autumn and a well-mixed water column during the winter were present. Dissolved-oxygen concentration was homogeneous in the water column from winter to spring (5-7 mg L-1. From summer to autumn, bottom dissolved oxygen ( 20 m decreased to reach conditions of hypoxia (1-2 mg L-1 or anoxia; nitrate, nitrite, and phosphates increased (up to 13, 1.7 and 2.2 *M followed by a last short period of a deep hydrogen sulfide layer (up to 3.1 mg L-1. A back calculation to estimate the input of organic matter in the deep layer showed that 18 g C m-2y-1 needed to be trapped in the bottom to induce such an oxygen depletion. This period is thought to be unfavorable for bottom infauna in this bay.Se midió seis variables físico-químicas en Bahía Concepción (Golfo de California, 1993 y 1994 para explicar el origen de valores muy bajos de oxígeno disuelto en el fondo. La estructura hidrográfica mostró una fuerte estratificación térmica vertical del inicio de la primavera hasta el otoño, mientras que durante el invierno se observa una columna de agua homogénea. Las concentraciones de oxígeno disuelto siguen el mismo patrón: homogéneas de invierno a primavera (5-7 mg L -1, mientras que del verano al otoño disminuyen en la capa de fondo ( 20-m hasta alcanzar condiciones de hipoxia (1-2 mg L-1 o anoxia. Las concentraciones de nitrato, nitrito y ortofosfatos también aumentan en la capa de fondo (13, 1.7 y 2.2 *M respectivamente, seguido de un corto período de formación de sulfuro de hidrógeno (hasta 3.1 mg L-1. Por cálculos indirectos se establece que 18 g C m-2 a-1 de materia orgánica son atrapados en el fondo provocando la severa

Fauna de arañas del suelo de una comunidad árida-tropical en Baja California Sur, México Ground surface spider fauna in an arid tropical community in Baja California Sur, Mexico

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María Luisa Jiménez

2010-08-01

Full Text Available Se describe la temporalidad y diversidad de arañas del suelo del matorral sarcocaule en la región del Cabo en Baja California Sur. Durante 1991-1992 se realizaron colectas semanales por medio de trampas de caída. Se capturaron 4 322 ejemplares de 53 especies. Las familias con mayor abundancia fueron Miturgidae (42.2%, Oonopidae (23.5%, Caponiidae (8.0% y Gnaphosidae (7.9%. Las especies más abundantes fueron Syspira tigrina Chamberlin (37.1%; Oonops nov. sp. (13.7%, Scaphiella hespera Chamberlin (7.8% y Tarsonops sternalis Chamberlin (5.2%, que constituyeron el 63.7% del total de individuos. Gnaphosidae fue la más rica en especies (11, seguida por Salticidae (7. La riqueza de especies fue constante durante todo el año, con un ligero ascenso en el verano (29 y una ligera disminución en el invierno (24. La diversidad por estación del año se mantuvo en un intervalo de H'= 3.3 -3.7. La abundancia relativa se incrementó en primavera y otoño. La mayor riqueza específica se encontró en otoño. La abundancia relativa y la diversidad de arañas se pueden considerar altas, a pesar del fuerte dominio de la familia Miturgidae. En la mayoría de las especies, la distribución mostró una marcada estacionalidad.Seasonal distribution, specific richness, and diversity of xeric shrub ground spiders were studied at a site in the Cape Region. Weekly collections of spiders were made in 1991-1992 using pit-fall traps. We captured 4 322 specimens in 53 families. Families with the highest number of individuals were: Miturgidae (42% Oonopidae (23.5%, Caponiidae (8.0%, and Gnaphosidae (7.9%. The most abundant species were Syspira tigrina Chamberlin (37.1%; Oonops nov. sp. (13.7%, Scaphiella hespera Chamberlin (7.8%, and Tarsonops sternalis Chamberlin (5.2%, representing 63.7% of the total specimens captured. Gnaphosidae was the richest in species (11 followed by Salticidae (7. Species richness was nearly constant during all the year, with a small increase in

Ciclo reproductivo de Liolaemus gracilis Bell, 1843 (Iguanidae: Tropidurinae en las dunas costeras de Buenos Aires, Argentina

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Vega, Laura Estela

2005-02-01

Full Text Available Estudiamos la fenología y edad de madurez reproductiva y el tamaño y la frecuencia de la puesta de una población de Liolaemus gracilis de las dunas costeras de Buenos Aires, Argentina. Examinamos las gónadas de 93 ejemplares coleccionados mensualmente a lo largo de un año en la localidad de Mar del Sur (provincia de Buenos Aires y medimos 11 caracteres morfométricos en 39 adultos en búsqueda de dimorfismo sexual. Las hembras se consideraron maduras si poseían folículos yemados mayores a 2 mm, o huevos oviductales, u oviductos claramente distendidos. En los machos los indicadores de madurez sexual fueron la presencia de testículos agrandados y el estado convoluto de los epidídimos, midiéndose el ancho y largo del testículo izquierdo en cada uno. L. gracilis exhibió un patrón reproductivo estacional con características del tipo parcial de otoño. El tamaño medio de las hembras en actividad reproductiva fue de 48,9 mm ± 3,5 (largo hocico-cloaca (n = 19 y la menor madura sexualmente midió 43,8 mm. El tamaño de la puesta varió de 4 a 6 huevos ( X = 4,75 ± 0,95, n = 4. El macho de menor tamaño con testículos agrandados midió 40,5 mm. (largo hocico-cloaca. Tanto los machos como las hembras estuvieron reproductivamente activos desde comienzos del otoño hasta comienzos del verano. Las hembras producirían una puesta por año entre fines de la primavera y comienzos del verano y las crías nacerían a mediados de esta estación. Encontramos dimorfismo sexual en la mayor distancia entre los miembros anteriores y posteriores de las hembras y en la mayor longitud de la cabeza, tibio-fíbula y pie de los machos. We studied the reproductive phenology, size at maturity, frequency and clutch size of a lizard population of Liolaemus gracilis from coastal sand dunes of Buenos Aires, Argentina. We examined 93 specimens collected monthly throughout a year in the locality of Mar del Sur (Buenos Aires province and measured 11 morphometric

VIGILANCIA DE LA PANDEMIA DE GRIPE (H1N1 2009 EN ESPAÑA

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Amparo Larrauri Cámara

2010-01-01

Full Text Available Fundamento: España experimentó una circulación del nuevo virus de la gripe (H1N12009 durante el verano de 2009, que evolucionó de forma creciente hasta la presentación a principios del otoño de la primera onda pandémica por dicho virus. Los objetivos de este trabajo son describir la evolución de esta onda pandémica en nuestro país y evaluar su impacto en la morbilidad y mortalidad de la población española. Método: A partir de la información proporcionada por el Sistema de Vigilancia de la Gripe en España y el Centro de Coordinación de Alertas y Emergencias del Ministerio de Sanidad y Política Social se han estimado una serie de indicadores epidemiológicos y virológicos para evaluar el nivel de actividad e intensidad de la onda pandémica, así como su gravedad. Resultados: La onda pandémica por el virus (H1N12009 se inició a comienzos del otoño de 2009 y registró valores máximos de incidencia de gripe de 372,15 casos semanales/100.000 habitantes. Las mayores tasas de incidencia de gripe se observaron en los menores de 15 años. La tasa de detección viral en el periodo pandémico se mantuvo en el rango de las registradas previamente (46,4%. Se estimó una tasa de letalidad global de 0,43 defunciones por 1.000 casos de gripe pandémica. Un 64% de las defunciones por gripe pandémica se registraron en adultos jóvenes, con máximas tasas de mortalidad en el grupo de 45-64 años (9,35 defunciones/1.000.000 habitantes. La mortalidad asociada a gripe estacional en el periodo 2001- 2008 fue máxima en los mayores de 64 años (95% del total de defunciones. Conclusiones: La onda pandémica por el virus de la gripe (H1N12009 tuvo una presentación precoz en España y una intensidad media en comparación con las trece ondas estacionales previas de gripe. Esta primera onda también se caracterizó por un carácter leve, teniendo en cuenta tasas de letalidad o mortalidad, si bien un elevado porcentaje de las defunciones confirmadas

Liberación de la teofilina a partir de matrices hidrófilas que contienen algfinato de sodio procedentes de Sargassum cymosum (Phaeofphyta Release of theophylline from hydrophilic matrices containing sodium alginate from seasonal Sargassum cymosum (Phaeophyta

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Itamar Francisco Andreazza

2009-08-01

Full Text Available The sodium alginate extracted from seasonal Sargassum cymosum samples (autumn, winter, spring and summer in Paciência Beach (Penha- SC-Brazil showed a viscosity of 18.3, 33.5, 62.6 and 34.2 mPa·s, respectively. Theophylline tablets(60 mg containing 35 % of sodium alginate samples were analyzed by dissolution profile in a dissolution device at 100 rev×min-1 and 37 °C, using water as dissolution medium, during 6 h. Tablets with the lesser viscous sodium alginate sample (autumn showed a complete disintegration and drug release after 1 h. Despite all others tablets have exhibited the same drug release mechanism, by diffusion, the winter sodium alginate tablets released > 90 % of theophylline after 3 h, while spring and summer sodium alginate tablets showed similar dissolution profile with a release > 90 % of drug after 6 h. In general, the less viscous polymers showed a faster drug release, but probably other characteristics beside viscosity have played role in this process.El alginato de sodio extraído de muestras estacionales de Sargassum cymosum (otoño, invierno, primavera y verano en la Playa de la Paciencia (Penha-SC-Brasil mostró viscosidad de 18,3, 33,5, 62,6 y 34,2 mPa·s, respectivamente. Tabletas de teofilina (60 mg que contenían 35 % de muestras de alginato de sodio fueron analizadas a través del perfil de disolución, en un disolutor a 100 rev×min-1 y 37 ºC, utilizando agua como medio de disolución, durante 6 h. Las tabletas con la muestra de alginato de sodio menos viscosa (otoño mostraron completa desintegración y liberación del fármaco después de 1 h. A pesar de que todas las demás tabletas mostraron el mismo mecanismo de liberación del fármaco, por difusión, las tabletas con la muestra de alginato de sodio de invierno liberó > 90 % de la teofilina después de 3 h, mientras las tabletas de alginato de sodio de primavera y verano presentaron un perfil de disolución semejante con liberación > 90 % de f

Basic experiment of flux gate sensor. no. 1, normalization of measurement data; Furakkusu geto jiryokukei no kisojikken. (1) Sokutei deta no hyojunka

Energy Technology Data Exchange (ETDEWEB)

Tanaka, Tsuyoshi; Naito, Yoshihiro; Segawa, Hiroki

1999-02-01

While using a single shaft differential flux gate magnetometer to conduct magnetic inspection of a buried iron, a theoretical equation and simulation waves are known, but the real waves may be different from the theoretical waves depending on the characters of the magnetometer. In general, a magnetic field produced by a static magnet is investigated with a moving sensor. However, in order to investigate a magnetic field only produced by a magnet, it is necessary to investigate the magnetic field by the manner of moving the magnet and not moving the sensor. These two methods are compared. In order to compare and study the digital data obtained from the basic experiment, it is necessary to eliminate the difference caused by the speed differences of the sensor during measurement. The method is explained in detail. (translated by NEDO)

Development of a measuring system for vapor-jet forms of small-sized fuel injectors; Kogata injector funmu keijo sokutei system no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Hibino, H; Komatsubara, H; Kawashima, O; Fujita, A [Aisan Industry Co. Ltd., Aichi (Japan)

1997-10-01

In the small-sized fuel injectors adapted to the United States` exhaust-gas regulation or the like, the vapor jet is extremely atomized and the jet form as one of the performances of the product has become more important than before. Accordingly, we have developed a measuring system in which the vapor jet of the small-sized fuel injector is irradiated with a flat laser light, the sectional form of the jet that is shining due to diffusion is sampled, and the distribution and the form of the sampled sections are determined by the image processing. 2 refs., 15 figs., 4 tabs.

High-frequency CSMT (HFCSMT) survey system for fine resistivity structures in the shallow subsurface; Hyoso hiteiko seimitsu sokutei sochi (HFCSMT) no kaihatsu

Energy Technology Data Exchange (ETDEWEB)

Handa, S [Saga University, Saga (Japan); Kinoshita, T; Kozato, T [Construction Project Consultant Co. Ltd., Osaka (Japan)

1997-10-22

HFCSMT system has been developed to enhance resolution in CSMT technology. The system covers a frequency band of 1.4kHz-106kHz for transmission, and measurement is performed using 16 frequencies. The transmitter power amplifier operating on a 12V cell is capable of a maximum output of approximately 3A, and the signals can be received at points several 100s of meters away. As for the selection of frequencies, synchronization is ensured for the receiver set no matter what instant the measuring process is commenced, the process being fully automated including the gain control. Phase and amplification values obtained for the electric and magnetic fields are subjected to A/D conversion. The data are stored in the microcomputer memory as apparent resistivity and phase data, and are forwarded to the host computer upon termination of the measuring process. Since both analog processing and digital processing are used, the measurement process is over in approximately 96 seconds. This system is being tested in various fields of technology. 1 fig.

High resolution seismic refraction method with multichannel digital data acquisition system; Digital ta channel sokutei system wo mochiita koseido kussetsuho jishin tansa

Energy Technology Data Exchange (ETDEWEB)

Hayashi, K [Oyo Corp., Tokyo (Japan)

1997-05-27

This paper introduces a multichannel digital data acquisition system and examples of measurements with the system in seismic exploration using the high resolution seismic refraction method. The high resolution seismic refraction system performs analyses nearly automatically by using a computer after initial travel time has been read. Therefore, the system requires high-accuracy travel time data, for which a multichannel digital measuring instrument developed recently for seismic exploration using the refraction method has been used for the measurement. The specification specifies the number of channels at 144 as a maximum, a sampling time of 62.5 {mu}sec to 4 m sec, the maximum number of sampling of 80,000 samples, and gain accuracy of {plus_minus} 1%. The system was used for surveying a tunnel having a maximum soil cover of about 800 m. The traverse line length is about 6 km, the distance between vibration receiving points is 50 m, and the number of vibration receiving points is 194. Executing measurements of single point system using GPS can derive accurate velocity in the vicinity of the basic face of the tunnel construction. Results were obtained from the investigation, which can serve more for actual construction work. 10 refs., 6 figs., 1 tab.

Riesgo de anegamiento: estimaciones para la Cuenca Baja del Río Salado Flooding risk in the Salado River Basin

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Pablo Mauricio Vázquez

2009-12-01

Full Text Available Está documentado que de 1986 al 2001 se incrementó en un 69% el área cultivada en sectores de la Pampa Deprimida, y que el avance agrícola se realizó sobre tierras que cíclicamente fueron afectadas por excesos de agua (anegamiento o inundación. Con el propósito de auxiliar la planificación y el ordenamiento de actividades agropecuarias en tierras de la Pampa Deprimida, nos propusimos generar información que denote el riesgo de anegamiento o inundación. Para alcanzar este objetivo se calculó la recurrencia de las precipitaciones en 20 estaciones meteorológicas y se vinculó con la frecuencia de anegamiento en los píxeles que surgió del análisis de una serie temporal de imágenes satelitales. Los resultados indican que se han registrado eventos extremos de precipitación acumulada en todas las estaciones del año y que los anegamientos acontecidos en otoño e invierno fueron más prolongados que los ocurridos en períodos primaveroestivales. Si bien el otoño e invierno son estaciones donde las áreas permanecieron anegadas por períodos de tiempo similar, la mayor recurrencia de los eventos en abril y mayo determinaron que el otoño fuese la estación crítica. Problemas severos de anegamiento comenzarían cuando las precipitaciones exceden 150-200 mm. En la serie temporal analizada, acumulaciones de precipitación de esa magnitud se vincularon con superficies anegadas que equivalen al 68,76% de la región (5.844.709 ha. El patrón de anegamiento permitió observar que estructuras antrópicas contribuyeron hasta el 2,11% del anegamiento regional, siendo los principales impedimentos para el movimiento del agua bordos en los canales 12, 11 y 9, la ruta provincial 29 (entre la localidad de Ayacucho y su cruce con el camino a Casalins y la línea férrea de Metrovías (ex FF.CC. Roca. Mediante técnicas de percepción remota se determinó que en la campaña 2003-2004, un 22,8% del área destinada a la producción de cultivos (173

Numerical response analysis of a large mat-type floating structure in regular waves; Matogata choogata futai kozobutsu no haro oto kaiseki

Energy Technology Data Exchange (ETDEWEB)

Yasuzawa, Y.; Kagawa, K.; Kitabayashi, K. [Kyushu University, Fukuoka (Japan); Kawano, D. [Mitsubishi Heavy Industries, Ltd., Tokyo (Japan)

1997-08-01

The theory and formulation for the numerical response analysis of a large floating structure in regular waves were given. This paper also reports the comparison between the experiment in the Shipping Research Institute in the Minitry of Transport and the result calculated using numerical analytic codes in this study. The effect of the bending rigidity of a floating structure and the wave direction on the dynamic response of a structure was examined by numerical calculation. When the ratio of structure length and incident wavelength (L/{lambda}) is lower, the response amplitude on the transmission side becomes higher in a wave-based response. The hydrodynamic elasticity exerts a dominant influence when L/{lambda} becomes higher. For incident oblique waves, the maximum response does not necessarily appear on the incidence side. Moreover, the response distribution is also complicated. For example, the portion where any flexible amplitude hardly appears exists. A long structure response can be predicted from a short structure response to some degree. They differ in response properties when the ridigity based on the similarity rule largely differs, irrespective of the same L/{lambda}. For higher L/{lambda}, the wave response can be easily predicted when the diffrection force is replaced by the concentrated exciting force on the incidence side. 13 refs., 14 figs., 3 tabs.

Adaptive feedforward control for improving output power response of CO2 laser; Tekiogata feedforward ni yoru laser shutsuryoku oto no kaizen

Energy Technology Data Exchange (ETDEWEB)

Imai, Y.; Takahashi, t.; Morita, A. [Mitsubishi Electric Corp., Tokyo (Japan)

1998-03-31

Feedback control has been used to stabilize the steady-state output power of a CO2 laser to overcome the problems caused by the change in the temperature/deterioration of CO2 gas. The transient response, however, is as slow as a few hundred milliseconds because of the slow dynamics of a thermopile power sensor. When machining conditions of a CO2 laser are changed, this rather slow response requires an extra dwell time, resulting in low productivity of the machining. To cope with this problem, the authors have developed adaptive feedforward control for a CO2 laser in addition to conventional feedback control. The model of a CO2 laser is described as a gain, which is varied by the setting parameters; laser power, pulse frequency and duty factor, as well as gas conditions. In this paper, two new variables, effective discharge power and threshold discharge power, are introduced to obtain a compact and adjustable model. With the proposed control system, the step response time of a laser power is reduced to less than ten milliseconds without overshoot, and can be set to desired constant time. The effects of such a fast and stable response on the machining speed and machining quality are examined. The experimental results show that for thin metal line-cutting, neither the melt-off area nor dross is observed even in the no-dwell time case. For thin metal hole-cutting, the machining speed is improved by 30%. 11 refs., 14 figs., 3 tabs.

Vertical gust response prediction of cable-stayed bridges in yawed wind; Shachokyo no shafu ni yoru enchoku gust oto no yosoku

Energy Technology Data Exchange (ETDEWEB)

Nakamura, S.; Nagamachi, K.; Kawai, Y. [Kawasaki Steel Corp., Tokyo (Japan); Kimura, K.; Fujino, Y. [The University of Tokyo, Tokyo (Japan). Faculty of Engineering; Tanaka, H.

1996-03-01

This paper outlines the vertical gust response analysis method in a yawed wind, gives an analytic example, and compares the experimental result with the analytic result to investigate the application of an analysis method and the validity of assumption and approximation. The vertical gust response to two cable-stayed bridges under construction in a yawed wind was predicted by applying assumption and approximation to the gust response prediction method in a yawed wind with the cantilever model having a plate cross-section manipulated. In this case, the wind velocity component perpendicular to the leading edge was defined as an effective wind velocity, and a bridge axis and the component perpendicular to a bridge axis were separately calculated in response. Moreover, some aerodynamic coefficients of a bridge girder cross-section were approximately obtained from the characteristics of the flat blades with same aspect ratio. The obtained analytic result was compared with the wind tunnel test result based on all bridge models. The result showed that the former almost coincides with the latter, the assumption and approximation of this time are verified in validity, and this analysis method can be used for cable-stayed bridges under construction. 10 refs., 7 figs., 2 tabs.

La representación apocalíptica de la violencia en la narrativa fílmica de Gabriel García Márquez: los guiones de El año de la peste y Edipo Alcalde, y los argumentos inéditos Dios y yo y Para Elisa.

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Alessandro Rocco

2013-07-01

Full Text Available In Mario Vargas Llosa’s opinion, two of the most lasting obsessions of García Márquez’s literary world, were the theme of plague, and the one of violence, that together form a sort of “cataclysmic vision” of history, whose literary sources were Daniel Defoe’s, A journal of the plague year, and Sophocles’, Oedipus Rex. We mention in this article the presence of those themes in García Márquez’s filmic work, beginning with the screenplays of two films: El año de la peste and Edipo Alcalde, adaptations of the cited works of Defoe and Sophocles. Afterwards we present two unpublished film treatments, Para Elisa and Dios y yo. The first is about war in Colombia, and presents an explicit reference to the “Bogotazo” (9th of April of 1948, while the second presents the theme of Latin American dictator, that García Márquez later focused in his novel El otoño del patriarca.

Incidencias de la variabilidad térmica y los tipos de circulación atmosférica sobre el número de casos y la tasa de gripe en la ciudad de Vitoria: unos resultados para la reflexión

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Pablo Fernández de Arróyabe Hernáez

2001-01-01

Full Text Available El presente artículo se sitúa conceptualmente dentro del área de la climatología médica. Trata acerca de la relación existente entre la variabilidad de alta frecuencia experimentada por la temperatura en la ciudad de Vitoria, las situaciones sinópticas diarias y el número de diagnósticos de gripe registrados por la Red de Médicos Vigía de la Comunidad Autónoma del País Vasco en mencionada localidad. Los resultados obtenidos en este estudio preliminar muestran la existencia de una importante conexión entre los tres factores durante el periodo de expansión de la enfermedad en la ciudad de Vitoria en el otoño - invierno de 1999. Finalmente, se incide en la importancia que esta relación puede tener en el área de la planificación sanitaria de cara a la implantación de métodos de análisis preventivos que faciliten la gestión de los recursos sanitarios en fases expansivas de epidemias gripales

De la colonialidad del poder al Imperio y viceversa

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Yann Moulier Boutang

2007-04-01

Full Text Available En el 2005, el IESCO-UC organizó en Bogotá el congreso "¿Uno solo o varios mundos posibles?" en el cual participaron invitados de distintos países, entre ellos el filósofo y sociólogo italiano, ahora radicado en Francia, Maurizio Lazaratto. Durante el evento se generó un interesante diálogo entre Lazaratto –reconocido adherente de la llamada “filosofía de la diferencia” en la línea de Foucault, Deleuze, Hardt y Negri, etc.– y pensadores latinoamericanos como Ramón Grosfoguel y Santiago Castro-Gómez –este último coordinador de una línea de investigación del IESCO–, ambos miembros de la red latino/latinoamericana modernidad/colonialidad. Al finalizar el evento, Lazaratto ofreció publicar las intervenciones de estos dos científicos sociales en la reconocida revista francesa Multitudes, los cuales aparecieron en el número 26 de esta publicación, en otoño de 2006. A continuación presentamos tres textos que recogen este debate centrado en la relevancia de la teoría decolonial latinoamericana en el contexto europeo y particularmente en Francia.

First and second branchial arch syndromes: multimodality approach

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Senggen, Elodie; Laswed, Tarek; Meuwly, Jean-Yves; Maestre, Leonor Alamo; Meuli, Reto; Gudinchet, Francois [University Hospital of Lausanne, Radiology Department, Lausanne (Switzerland); Jaques, Bertrand [University Hospital of Lausanne, Department of Otorhinolaryngology, Lausanne (Switzerland)

2011-05-15

First and second branchial arch syndromes (BAS) manifest as combined tissue deficiencies and hypoplasias of the face, external ear, middle ear and maxillary and mandibular arches. They represent the second most common craniofacial malformation after cleft lip and palate. Extended knowledge of the embryology and anatomy of each branchial arch derivative is mandatory for the diagnosis and grading of different BAS lesions and in the follow-up of postoperative patients. In recent years, many new complex surgical approaches and procedures have been designed by maxillofacial surgeons to treat extensive maxillary, mandibular and external and internal ear deformations. The purpose of this review is to evaluate the role of different imaging modalities (orthopantomogram (OPG), lateral and posteroanterior cephalometric radiographs, CT and MRI) in the diagnosis of a wide spectrum of first and second BAS, including hemifacial microsomia, mandibulofacial dysostosis, branchio-oto-renal syndrome, Pierre Robin sequence and Nager acrofacial dysostosis. Additionally, we aim to emphasize the importance of the systematic use of a multimodality imaging approach to facilitate the precise grading of these syndromes, as well as the preoperative planning of different reconstructive surgical procedures and their follow-up during treatment. (orig.)

El exilio argentino de José Vasconcelos

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Pablo Yankelevich

2014-06-01

Full Text Available En diciembre de 1929, José Vasconcelos, derrotado en las elecciones presidenciales, partió a un exilio que se prolongó durante una década. Durante un par de años residió en Estados Unidos, Costa Rica, Colombia, Ecuador, Cuba, Francia y España. De Europa pasó a Argentina donde radicó hasta enero de 1935, cuando se trasladó a Estados Unidos, donde vivió hasta su regreso a México en el otoño de 1938. En este artículo se revisa un segmento de este exilio, particularmente el desenvuelto a orillas del Río de la Plata. Interesa reconstruir la trayectoria intelectual de Vasconcelos cuando, a consecuencia de la derrota política y de la propia experiencia en el destierro, inició un deslizamiento hacia posiciones cada vez más conservadoras. Esas posiciones, definidas ya con claridad durante su residencia en Argentina, vinieron a clausurar el enorme caudal de simpatías que la utopía vasconceliana había despertado en espacios políticos e intelectuales en los primeros años de la década de 1920.

First and second branchial arch syndromes: multimodality approach

International Nuclear Information System (INIS)

Senggen, Elodie; Laswed, Tarek; Meuwly, Jean-Yves; Maestre, Leonor Alamo; Meuli, Reto; Gudinchet, Francois; Jaques, Bertrand

2011-01-01

First and second branchial arch syndromes (BAS) manifest as combined tissue deficiencies and hypoplasias of the face, external ear, middle ear and maxillary and mandibular arches. They represent the second most common craniofacial malformation after cleft lip and palate. Extended knowledge of the embryology and anatomy of each branchial arch derivative is mandatory for the diagnosis and grading of different BAS lesions and in the follow-up of postoperative patients. In recent years, many new complex surgical approaches and procedures have been designed by maxillofacial surgeons to treat extensive maxillary, mandibular and external and internal ear deformations. The purpose of this review is to evaluate the role of different imaging modalities (orthopantomogram (OPG), lateral and posteroanterior cephalometric radiographs, CT and MRI) in the diagnosis of a wide spectrum of first and second BAS, including hemifacial microsomia, mandibulofacial dysostosis, branchio-oto-renal syndrome, Pierre Robin sequence and Nager acrofacial dysostosis. Additionally, we aim to emphasize the importance of the systematic use of a multimodality imaging approach to facilitate the precise grading of these syndromes, as well as the preoperative planning of different reconstructive surgical procedures and their follow-up during treatment. (orig.)

CTP (Cochlin-tomoprotein) detection in the profuse fluid leakage (gusher) from cochleostomy.

Science.gov (United States)

Ikezono, Tetsuo; Sugizaki, Kazuki; Shindo, Susumu; Sekiguchi, Satomi; Pawankar, Ruby; Baba, Shunkichi; Yagi, Toshiaki

2010-08-01

By testing 125 samples, we confirmed that Cochlin-tomoprotein (CTP) is present in the perilymph, not in cerebrospinal fluid (CSF). Perilymph and CSF exist in two distinct compartments, even in the case of a malformed inner ear with a bony defect in the lamina cribrosa, as described here. Cochleostomy might have suddenly decreased the perilymph pressure, allowing the influx of CSF into the inner ear resulting in profuse fluid leakage, first perilymph then CSF. The first purpose of this study was to further confirm the specificity of the perilymph-specific protein CTP that we reported recently. Secondly, we assessed the nature of the fluid leakage from the cochleostomy using the CTP detection test. A standardized CTP detection test was performed on 65 perilymph and 60 CSF samples. Samples of profuse fluid leakage collected from cochleostomy during cochlear implantation surgery of one patient with branchio-oto-renal (BOR) syndrome were also tested by the CTP detection test. CTP was detected in 60 of 65 perilymph samples but not in any of the CSF samples. The leaked fluid was shown to contain CTP, i.e. perilymph, at the outset, and then the CTP detection signals gradually disappeared as time elapsed.

Caracterización estacional del hábitat fluvial del río Erro (Navarra

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P.M. Leunda, R. Miranda, M.C. Escala

2004-01-01

Full Text Available Se presenta la descripción de catorce tramos representativos del río Erro (Navarra a partir de la caracterización del hábitat fluvial llevada a cabo en invierno, verano y otoño de 2002. Para este estudio se han considerado parámetros tanto del hábitat físico (profundidad, anchura del cauce, pendiente de las orillas, velocidad del agua, tipo de sustrato, vegetación acuática y sombreado como físico-químicos del agua (temperatura, pH, conductividad, sólicos disueltos y oxigeno disuelto. El análisis de las caracteristicas del rio Erro permite considerar su estado general como bueno, aunque se detecta la presencia de un tramo sensible aguas abajo de la localidad de Erro. Si bien este tramo sensible presenta niveles de conservación aceptables, es susceptible de deteriorarse si no de adoptan las medidas oportunas para su conservación. Se sugiere su inclusión en el Lugar de Interés Comunitario (Red Natura 2000 de Navarra de los "Sistemas Fluviales de lis Ríos Irati, Urrobi y Erro".

Diagnostic and therapeutic strategy in Menière's disease. Guidelines of the French Otorhinolaryngology-Head and Neck Surgery Society (SFORL).

Science.gov (United States)

Nevoux, J; Franco-Vidal, V; Bouccara, D; Parietti-Winkler, C; Uziel, A; Chays, A; Dubernard, X; Couloigner, V; Darrouzet, V; Mom, T

2017-12-01

The authors present the guidelines of the French Otorhinolaryngology-Head and Neck Surgery Society (Société française d'oto-rhino-laryngologie et de chirurgie de la face et du cou: SFORL) for diagnostic and therapeutic strategy in Menière's disease. A work group was entrusted with a review of the scientific literature on the above topic. Guidelines were drawn up, then read over by an editorial group independent of the work group. The guidelines were graded according to the literature analysis and recommendations grading guide published by the French National Agency for Accreditation and Evaluation in Health (January 2000). Menière's disease is diagnosed in the presence of the association of four classical clinical items and after eliminating differential diagnoses on MRI. In case of partial presentation, objective audiovestibular tests are recommended. Therapy comprises medical treatment and surgery, either conservative or sacrificing vestibular function. Medical treatment is based on lifestyle improvement, betahistine, diuretics or transtympanic injection of corticosteroids or gentamicin. The main surgical treatments, in order of increasing aggressiveness, are endolymphatic sac surgery, vestibular neurotomy and labyrinthectomy. Copyright © 2016 Elsevier Masson SAS. All rights reserved.

Process control measurements in the SRP fuel separations plants

International Nuclear Information System (INIS)

McKibben, J.M.; Pickett, C.E.; Dickert, H.D.

1982-02-01

Programs were started to develop new in-line and at-line analytical techniques. Among the more promising techniques being investigated are: (1) an in-line instrument to analyze for percent tributyl phosphate in process solvent, (2) remote laser optrode techniques (using lazer light transmitted to and from the sample cell via light pipes) for a variety of possible analyses, and (3) sonic techniques for concentration analyses in two component systems. A subcommittee was also formed to investigate state-of-the-technology for process control. The final recommendation was to use a distributed control approach to upgrade the process control sytem. The system selected should be modular, easy to expand, and simple to change control strategies. A distributed system using microprocessorbased controllers would allow installation of the control intelligence near the process, thereby simplifying field wiring. Process information collected and stored in the controllers will be transmitted to operating consoles, via a data highway, for process management and display. The overall program has a number of distinct benefits. There are a number of cost savings that will be realized. Excellent annual return on investment - up to 110% - has been predicted for several of the projects in this program that are already funded. In addition, many of the instrument modifications will improve safety performance and production throughput in the specific ways shown

On the development of an integrated mechanical analysis system applied to PWR nuclear fuel assemblies

International Nuclear Information System (INIS)

Leroux, J.C.

1986-01-01

A general data base has been developed in order to handle any data used in the mechanical design. This data base required the development of a DBMS, based on an extended network scheme or navigational scheme, which allows the creation of any data base configuration defined by a Data Base Description Language. It is written in Fortran 5 Language and generates a Data Manipulation Language in standard Fortran ''Call''. This general data base is essentially composed of two combined parts: one allowing to describe any mechanical structure and the other defining a material data base. This sytem is presently in a prototype state and used to test and define the final architecture of the data base and the structure of the elementary data. At the same time the research effort has been devoted to the coupling between the data base and the aplication programs (Data Processor DP). This requires the development of an application programs data base and a process design management system, which is able, with a Data Processor Description Language, to generate the application file and the related data. The main objectives in developing such a system are: - Application of standard calculation methods to a data base sub-system, - Implementation of a data modification in the design process, - Rapid generation of new applications. (orig.)

Influência de Íons de Potássio e Cálcio nos Géis de Carragenas Kappa e Iota

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Valeriana Silveira Andrade

2015-07-01

Full Text Available No presente estudo avaliou-se a influência da concentração de diferentes sais (KCl, CaCl2.2H2O, K2SO4, e CaSO4.2H2O sobre as carragenas Kappa e Iota (polissacarídeos sulfatados utilizados principalmente na indústria alimentícia, de cosméticos e têxteis, como géis, estabilizantes, espessantes e emulsificantes em dispersões aquosas deionizadas, suas propriedades gelificantes, sinérese e pH. Para análise de textura foi utilizado o analisador de textura TAXT/2i Stable Micro Sytems. O método de penetração mostrou que em todas as provas, acima de certo limite, ocasionou-se impacto negativo sobre o sistema investigado. As parcelas de força de compressão para a k-carragena variaram consideravelmente, com resultados satisfatórios em relação à interação dos ions Ca2+ para os dois sais utilizados. Os melhores resultados de força de compressão em concentrações maiores foram obtidos com KCl. já utilizando-se o sal K2SO4 não houve significativas variações. Quanto a i-carragena, a pequena variação obtida, provalvelmente é decorrente de impurezas de k-carragena.

Electric-dipole moment of CaF by molecular-beam, laser-rf, double-resonance study of Stark splittings

International Nuclear Information System (INIS)

Childs, W.J.; Goodman, L.S.; Nielsen, U.; Pfeufer, V.

1984-01-01

The electronic structure of diatomic molecules is much more complex for open-shell sytems (radicals) than for the normal closed-shell systems, and the development of an adequate theoretical understanding will require a substantial upgrading of experimental knowledge in both quality and quantity. The alkaline-earth monohalide family of radicals, with only a single electron outside closed-shell cores, would appear to be a logical starting point for such studies, and there has been a great increase in work in this area in the last few years in spite of the special difficulties of working with free radicals. As the work of measuring the vibrational and rotational structure of the electronic states has become more complete, attention has turned to study of the much weaker spin-rotation and hyperfine interactions. Within the last three years, these interactions have been studied systematically at high precision in the calcium monohalide family with the molecular-beam, laser-rf double-resonance technique. The same method has now been modified and extended to make possible measurement of the electric-dipole moments of these molecules through observation of the Stark splittings of radiofrequency transitions. It is hoped that when considered together, the several types of data will make it possible to understand the ground-state electronic wave functions of these molecules at least qualitatively. 2 figures

Regional Interdependence in Adaptation to Sea Level Rise and Coastal Flooding

Science.gov (United States)

Stacey, M. T.; Lubell, M.; Hummel, M.; Wang, R. Q.; Barnard, P.; Erikson, L. H.; Herdman, L.; Pozdnukhov, A.; Sheehan, M.

2017-12-01

Projections of sea level rise may differ in the pace of change, but there is clear consensus that coastal communities will be facing more frequent and severe flooding events in the coming century. As communities adapt to future conditions, infrastructure systems will be developed, modified and abandoned, with important consequences for services and resilience. Whether action or inaction is pursued, the decisions made by an individual community regarding a single infrastructure system have implications that extend spatially and temporally due to geographic and infrastructure system interactions. At the same time, there are a number of barriers to collective or coordinated action that inhibit regional solutions. This interplay between local actions and regional responses is one of the great challenges facing decision-makers grappling with both local and regional climate-change adaptation. In this talk, I present case studies of the San Francisco Bay Area that examine how shoreline infrastructure, transporation sytems and decision-making networks interact to define the regional response to local actions and the local response to regional actions. I will characterize the barriers that exist to regional solutions, and characterize three types of interdependence that may motivate decision-makers to overcome those barriers. Using these examples, I will discuss the importance of interdisciplinary analyses that integrate the natural sciences, engineering and the social science to climate change adaptation more generally.

Complexes of vanadyl and uranyl ions with the chelating groups of humic matter

International Nuclear Information System (INIS)

Goncalves, M.L.S.; Mota, A.M.

1987-01-01

The uranyl and vanadyl complexes formed with salicylic, phthalic and 3,4-dihydroxybenzoic acids have been studied by potentiometry in order to determine the stability constants of the Msub(m) Lsub(n) species formed in solution, and the constants for hydrolysis and polymeric complexes, at 25.0 0 , in 0.10, 0.40 and 0.70M sodium perchlorate. MINIQUAD was used in process the data to find the best models for the species in solution, and calculate the formation constants. The uranyl-salicylic acid sytem was also studied by spectrophotometry and the program SQUAD used to process the data obtained. The best models for these systems show that co-ordination of the uranyl ion by carboxylate groups is easier than for the vanadyl ion, whereas the vanadyl ion seems to form more stable complexes with phenolate groups. Both oxo-cations seem to tend to hydrolyse rather than form complexes when the L:M ratios are greater than unity. Although the change in the constants with ionic strength is small, the activity coefficients of the salicylate and phthalate species have been calculated at ionic strengths 0.40 and 0.70M, along with the interaction parameters with Na + , from the stability constants found for the species ML and H 2 L, according to the Bronsted-Guggenheim expression. (author)

Cooperation in simulating a pressurized coal dust reactor with different simulation programs; Kooperation bei der Simulation eines Druckkohlenstaubreaktors mit unterschiedlichen Simulationsprogrammen

Energy Technology Data Exchange (ETDEWEB)

Ayar, A.; Hecken, M. [Technische Hochschule Aachen (Germany). Lehrstuhl fuer Waermeuebertragung und Klimatechnik; Mohr, M.; Murza, S. [Bochum Univ. (Germany). Lehrstuhl fuer Energieanlagentechnik; Richter, S.; Stroehle, J. [Stuttgart Univ. (Germany). Inst. fuer Verfahrenstechnik und Dampfkesselwesen

1999-09-01

The contribution presents the results of a cooperative project of three different universities - Department of Heat Transfer and Air Conditioning Engineering (WUeK) of RWTH Aachen, Department of Power Sytems Engineering (LEAT) of Ruhr-Universitaet Bochum, Institute of Chemical Engineering and Steam Boiler Engineering (IVD) of Stuttgart University - which involved modellilng a benchmark flame of the pressurized coal dust reactor of the Departmentof Heat Transfer and Air Conditioning Engineering. The conditions of the benchmark flame reflect a real firnace condition which so far has never been investigated experimentally. The contribution compares the results of the three different simulation programs and presents an outlook to the necessary further developments of the programs for modelling plants for pressurized coal dust combustion. [Deutsch] Es werden die Ergebnisse der Zusammenarbeit der drei beteiligten Institute - Lehrstuhl fuer Waermeuebertragung und Klimatechnik (WUeK) der RWTH Aachen, Lehrstuhl fuer Energieanlagentechnik (LEAT) der Ruhr-Uni Bochum und Institut fuer Verfahrenstechnik und Dampfkesselwesen (IVD) der Uni Stuttgart - bei der Modellierung einer Benchmarkflamme des Druckkohlenstaubreaktors am Lehrstuhl fuer Waermeuebertragung und Klimatechnik dargestellt. Diese Bedingungen fuer diese Benchmarkflamme sind einem realen, bis dato noch nicht experimentell untersuchten Feuerungszustand nachempfunden. Der Beitrag beinhaltet den Vergleich der mit drei unterschiedlichen Simulationsprogrammen erzielten Ergebnisse und gibt einen Ausblick auf die notwendigen Weiterentwicklungen der Programme hinsichtlich der Modellierung druckkohlenstaubgefeuerter Anlagen. (orig.)

Fundamental principles of a new EM tool for in-situ resistivity measurement; Denji yudoho ni yoru den`ichi hiteiko sokutei sochi no kento

Energy Technology Data Exchange (ETDEWEB)

Noguchi, K; Aoki, H [Waseda University, Tokyo (Japan). School of Science and Engineering; Saito, A [Mitsui Mineral Development Engineering Co. Ltd., Tokyo (Japan)

1996-05-01

For the purpose of measuring in-situ resistivity without contact with the rock, a study was made about a measuring device using electromagnetic induction. This measuring device has two concentric transmission loops and a receiving point at the center of the loops, and performs focusing by canceling the primary magnetic field at the receiving point. Using this device, a trial was made to eliminate the influence of surface undulation. In the model calculation, response was calculated after the structure with a heavily undulated ground surface was replaced by a two-layer structure with the first layer provided with a higher resistivity. In the model, the first layer had a resistivity of 10000 Ohm m, and the second layer 1000 Ohm m. Using the ratio between the transmission loop radii as a parameter, relationship with the thickness of the first layer was studied, and it was found that the sensitivity to the second layer resistivity increases when the inner and outer loops are nearer to each other in terms of radius and that this eliminates the influence near the surface layer. A decision needs to fall within a scope assuring good reception because response intensity decreases as the ratio between the transmission loop radii approaches 1. 3 refs., 11 figs.

Conductivity Measurements of Alkali Metal Thiocyanates in Water-Methanol Mixtures; Mizu-metanoru kongoyoubai ni okeru arukari kinzoku chioshiansan`en no denki dendodo sokutei

Energy Technology Data Exchange (ETDEWEB)

Kubota, Eiji.; Horimoto, Sanaki. [Shinshu University, Nagano (Japan). Faculty of Science

1999-03-10

The counductivity of several alkali nmetal thiocyanates in water-methanol mixtures was measured at 25degreeC. the data were analyzed using Lee-Wheaton theory for symmetrical electroyers to cbtain ion association constant, K{sub A}, limiting molar sonductivity, {Lambda}{sub 0}, and limiting ionic molar conductivity, lamnda{sub 0}{+-}. In all the solvent systems, calculated{lambda}{sub 0}{sup +} values of the alkali metal ions increase in the order L{sub i}{sup +}

Eficacia del Oxavar® para el Control del Ácaro Varroa destructor (Varroidae en Colmenas de Apis mellifera (Apidae Efficacy of Oxavar® to control the mite Varroa destructor (Varroidae in honeybee colonies of Apis mellifera (Apidae

Directory of Open Access Journals (Sweden)

Jorge Augusto Marcangeli

2003-12-01

Full Text Available El objetivo del trabajo fue evaluar la eficacia del producto Oxavar® para el control del ácaro Varroa destructor (Anderson & Trueman en colmenas de abejas Apis mellifera durante la primavera de 2002 y otoño de 2003. El trabajo se llevó a cabo en el apiario experimental del Centro de Extensión Apícola ubicado en Coronel Vidal, provincia de Buenos Aires. Se trabajó sobre un total de 20 colmenas tipo Langstroth que se dividieron en dos grupos iguales. El primer grupo recibió 5 ml de Oxavar® (323 g en 5000 ml de agua destilada por cuadro cubierto por abejas. El segundo grupo, el testigo, recibió 5 ml de agua destilada por cuadro cubierto por abejas. Ambos grupos recibieron tres dosis a intervalos de siete días. Semanalmente, se recolectaron los ácaros muertos caídos en pisos especiales que evitaban que las abejas los eliminen. Posteriormente, en los dos grupos se colocaron tiras del producto Apistan® para eliminar los ácaros remanentes en las colonias y poder así calcular la eficacia del tratamiento. El producto Oxavar® presentó una eficacia promedio de 85,5 % ± 2,8 durante la primavera y 86,1% ± 2,6 durante el otoño, no mostrando diferencias significativas entre las estaciones (p> 0,05. En ambos casos se registraron diferencias significativas frente al grupo control (pThe aim of this work was to evaluate the acaricide efficacy of Oxavar® to control Varroa destructor (Anderson & Trueman in Apis mellifera (L colonies during the spring 2002 and the autumn 2003. Work was done at “Centro de Extensión Apícola” experimental apiary located in Coronel Vidal, province of Buenos Aires. Twenty Langstroth hives were used divided in two equal groups. The first group received 5 ml of Oxavar® (323 g in 5000 ml of destiled water per comb covered by honeybees and the second one received 5 ml of destiled water. Both groups received three dosages at seven day periods. Dead mites were collected weekly from special floors in order to avoid

Génesis y destrucción del poder en Cien años de soledad y El otoño del patriarca

Directory of Open Access Journals (Sweden)

Cecilia Castro de Lee

1982-01-01

Full Text Available La violencia, las guerras civiles, la acción de la compañía bananera y la presencia de militares han sido los temas más extensamente estudiados por la crítica en relación con el mundo político-social de Macondo. Otros temas están relacionados con el cuadro generacional, el incesto y la soledad en la familia Buendía, eje de la vida e historia de Macondo. Es decir, que Cien años de soledad ha sido estudiada partiendo de la base de la historia de una comunidad o tomando a la familia Buendía con sus temores, tragedias, repeticiones y su lazo identificador -la soledad-.

Analysis and model-tests on vortex-induced oscillation of bridges; Kyoryo no uzu reishin ni kansuru sanjigen oto kaiseki to fudo jikken

Energy Technology Data Exchange (ETDEWEB)

Yamamura, N. [Hitachi Zosen Corp., Osaka (Japan); Ogasawara, M. [Kansai Electric Power Co. Inc., Osaka (Japan); Shiraishi, N. [Maizuru College of Technology, Kyoto (Japan); Nanjo, M.

1996-07-21

In order to predict the three-dimensional response to vortex-induced oscillation of bridges, a model was investigated using the aerodynamic force coefficient including vortex-induced and self-excited forces, and the nonlinear response coefficient expressing constancy of response to vortex-induced oscillation. In the analysis, change of frequency in wind by the self-excited force, aerodynamic damping term, effect of the mode, and correlation of the vortex-induced force along member axis were taken into account. The aerodynamic force and nonlinear response coefficients were identified from the homogeneous and turbulent flow results of wind tunnel tests using a two-dimensional spring support rigid body model with varied damping factor. The aerodynamic damping term can be estimated from the nonlinear aerodynamic force coefficient, but it was enough to calculate it from the quasi-stationary coefficient in general bridge profiles. The correlation of the vortex-induced force was obtained from measurements of the vertical variation components of trailing flow under the resonance state, or the pressure distribution of the member surface. When comparing to the wind tunnel test of three-dimensional model of cable-stayed bridge, the response amplitude by the present analysis method was consistent well with the test results rather than by the method in which the amplitude of two-dimensional model was corrected. 10 refs., 4 figs., 3 tabs.

Study of complex resistivity measurement using current and potential waveform data; Denryu to den`i hakei data wo riyoshita fukusohi teiko sokutei no kento

Energy Technology Data Exchange (ETDEWEB)

Shima, H; Sakurai, K; Yamashita, Y [OYO Corp., Tokyo (Japan)

1997-10-22

This paper proposes a measurement method for complex resistivity using both current and potential waveforms. This method was applied to actual data. Especially, chargeability was discussed among complex resistivities. A method was proposed for determining the complex resistivity. At first, digital measurements of both current and potential waveforms were conducted. For the potential waveform, zero-order self-potential was canceled. Then, the FFT technique was applied to both current and potential waveforms, to determine both current and potential in the frequency domain. Hereafter, complex resistivity was determined through simple division. Since the inductive coupling was observed at higher frequencies, it was difficult to apply Cole-Cole model, simply. However, the inductive coupling could be removed using proper sampling frequency. Thus, a proper Cole-Cole dispersion curve could be obtained. Using this Cole-Cole dispersion curve, new chargeability could be defined. A linear relation between this chargeability and the ordinary time domain chargeability was made clear. 4 refs., 10 figs.

Development of the electromagnetic tomography system. Field test results using existing equipment; EM tomography system no kaihatsu. Kison sochi ni yoru test sokutei kekka

Energy Technology Data Exchange (ETDEWEB)

Kumekawa, Y; Miura, Y; Takasugi, S [Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan); Arai, E [Metal Mining Agency of Japan, Tokyo (Japan)

1996-05-01

With the purpose of developing an electromagnetic tomography system, an observation was carried out with existing equipment combined, and the data was analyzed. The measuring equipment consisted of existing borehole vertical magnetic field sensors as the sensor part, MT method receivers as the receiving device, and existing CSMT method transmitters as the transmitting device. The measuring was performed at the Richmond Field Station which was abundant in existing data and which had a comparatively simple resistivity structure. The borehole vertical magnetic field sensors were lowered inside the borehole, and signal sources were arranged at 10m apart on the traverse line in the direction from northeast to southwest with the borehole as the center. The analysis of the data was made with the use of EM1D by three models, namely, 10 ohm{center_dot}m homogeneous earth model, 100 ohm{center_dot}m homogeneous earth model, and horizontal 7 layer model prepared on the basis of electric logging results; and a comparative examination was made against the measured data. As a result, it was demonstrated that the test measurement agreed very well with the model from the electric logging results and that it was the data reflecting a resistivity structure. 8 refs., 6 figs.

Three component particle velocimetry using laser sheets for cycle-resolved, in-cylinder measurements; Laser sheet ho ni yoru cylinder nai nagare no sanjigen sokutei

Energy Technology Data Exchange (ETDEWEB)

Ishii, K.; Urata, Y.; Yoshida, K.; Ono, T. [Honda Motor Co. Ltd., Tokyo (Japan)

1996-01-25

Analysis of the cycle-by-cycle variation of combustion in an internal combustion engine can be aided by the cycle-resolved measurement of the in-cylinder gas velocity. This paper describes the principle and operation of, and results obtained from, a particle coded-pulse velocimeter (PCPV) which measured the three components of velocity within normal planes to the axis of cylinder. The PCPV was applied to a 1.5 litre lean-burn engine in order to record the flow pattern. The intake air was seeded with light microcapsules of approximately 50{mu}m diameter which scattered light from a system of up to two sets of three plane laser sheets, distinguished by colour and thickness and pulsed by acousto-optic modulators, illuminating planes in the bore of the engine. The magnitudes of the axial and cross bore components of the velocity vector were found from the measured lengths and the duration of the particle tracks. The results from the PCPV measurements are time-resolved and instantaneously three-dimensional and thus the PCPV is capable of identifying the transition from a disordered flow, such as the intake process, to well-ordered flows such as occur during a compression process. The derived swirl and tumble ratios were relatively in good agreement with those measured by an impulse swirl meter. 6 refs., 8 figs., 1 tabs.

Occupational exposure to Polycyclic Aromatic Hydrocarbons in wood dust

Energy Technology Data Exchange (ETDEWEB)

Huynh, C K; Schuepfer, P; Boiteux, P, E-mail: chuynh@hospvd.c [Institute for Work and Health, rue du Bugnon 21, CH-1005 Lausanne (Switzerland)

2009-02-01

Sino-nasal cancer (SNC) represents approximately 3% of Oto-Rhino-Laryngology (ORL) cancers. Adenocarcinoma SNC is an acknowledged occupational disease affecting certain specialized workers such as joiners and cabinetmakers. The high proportion of woodworkers contracting a SNC, subjected to an estimated risk 50 to 100 times higher than that affecting the general population, has suggested various study paths to possible causes such as tannin in hardwood, formaldehyde in plywood and benzo(a)pyrene produced by wood when overheated by cutting tools. It is acknowledged that tannin does not cause cancer to workers exposed to tea dust. Apart from being an irritant, formaldehyde is also classified as carcinogenic. The path involving carcinogenic Polycyclic Aromatic Hydrocarbons (PAHs) emitted by overheated wood is attractive. In this study, we measured the particle size and PAHs content in dust emitted by the processing of wood in an experimental chamber, and in field situation. Quantification of 16 PAHs is carried out by capillary GC-ion trap Mass Spectrometric analysis (GC-MS). The materials tested are rough fir tree, oak, impregnated polyurethane (PU) oak. The wood dust contains carcinogenic PAHs at the level of mug.g{sup -1} or ppm. During sanding operations, the PU varnish-impregnated wood produces 100 times more PAHs in dust than the unfinished wood.

El Cristo Crucificado de Velázquez: trasfondo histórico-religioso

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Rodríguez G. de Ceballos, Alfonso

2004-03-01

Full Text Available The author establishes the hypothesis, based on verifiable historical events, that Velazquez's Christ on the Cros was commissioned between the summer and autumn of 1632 by Jerónimo de Villanueva, when the inquisitorial proceedings in which he had been implicated were discontinued. This commision was not, however, imposed as penitence by the Holy Office; it was one among many expiatory acts organized in Madrid occasioned by the desecration of a Crucifix by Portuguese Jews, condemned to die in a public Auto-da-fe in July of that year.

En este escrito se establece la hipótesis, fundada en hechos históricos comprobados, de que el cuadro de Velázquez, Cristo crucificado, fue mandado pintar entre el verano y el otoño de 1632 por Jerónimo de Villanueva, una vez interrumpido el proceso inquisitorial en que se había visto envuelto. Pero no como penitencia impuesta por el Santo Oficio, sino como un acto expiatorio entre los muchos que se organizaron en Madrid con motivo de la cruel profanación de un Crucifijo por judíos portugueses que, en julio de aquel mismo año, fueron condenados a muerte en público Auto de Fe.

Mechanický návrh průběžného zásobníku příze a jeho realizace

OpenAIRE

Klusoň, Vladimír

2014-01-01

Práce se zabývá vývojem zařízení Průběžného zásobníku příze pro textilní stroj. Průběžný zásobník přízeobsahuje poháněný navíjecí válec s rotačním kompenzátorem napětí příze, flyerem. Poháněný otočný zásobník je spřažen s prvním pohonem tvořeným elektrickým motorem a rotační kompenzátor je spřažen s druhým pohonem tvořeným elektrickým motorem, přičemž oba motory jsou napojeny na řídicí systém. Zařízení Průběžný zásobník příze efektivně zvyšuje stupeň automatizace textilního stroje. This th...

Hippocrates the otolaryngologist: an epidemiological analysis of ear-throat-nose diseases in the Corpus Hippocraticum.

Science.gov (United States)

Benmoussa, Nadia; Hansen, Kevin; Charlier, Philippe

2018-03-01

Hippocrates, a Greek physician during the fifth century BC., is often considered the father of medicine. The Corpus Hippocraticum comprising of 58 volumes was attributed to him alone for a long time. Nowadays, it is considered that several authors contributed to its creation between 450 and 150 BC., so over a period of 300 years. The objective of our study was to develop a nosological classification of all passages treating head and neck diseases. We read and analyzed all volumes of the Corpus Hippocraticum in French translation and extracted all passages dealing with oto-rhino-laryngological and maxillo-facial conditions (n = 65). We classified all pathologies into five distinctive nosological groups: traumatic, infectious, malformation, cancerous and inflammatory Results: Traumatic diseases represented 36.9% (n = 24), infectious 52.3% (n= 34), malformation 0% (n = 0), cancerous 11.5% (n = 1) and inflammatory 9.3% (n= 6). These results represent the living conditions of this era, during which diseases were mostly of infectious or traumatic nature (wars, physical labor and recreational sporting activity, living together on close quarters, etc.). The meticulously detailed observations of the corpus give us a precious insight into the early perception of diseases, their progression and early attempts of treatment.

Occupational exposure to Polycyclic Aromatic Hydrocarbons in wood dust

International Nuclear Information System (INIS)

Huynh, C K; Schuepfer, P; Boiteux, P

2009-01-01

Sino-nasal cancer (SNC) represents approximately 3% of Oto-Rhino-Laryngology (ORL) cancers. Adenocarcinoma SNC is an acknowledged occupational disease affecting certain specialized workers such as joiners and cabinetmakers. The high proportion of woodworkers contracting a SNC, subjected to an estimated risk 50 to 100 times higher than that affecting the general population, has suggested various study paths to possible causes such as tannin in hardwood, formaldehyde in plywood and benzo(a)pyrene produced by wood when overheated by cutting tools. It is acknowledged that tannin does not cause cancer to workers exposed to tea dust. Apart from being an irritant, formaldehyde is also classified as carcinogenic. The path involving carcinogenic Polycyclic Aromatic Hydrocarbons (PAHs) emitted by overheated wood is attractive. In this study, we measured the particle size and PAHs content in dust emitted by the processing of wood in an experimental chamber, and in field situation. Quantification of 16 PAHs is carried out by capillary GC-ion trap Mass Spectrometric analysis (GC-MS). The materials tested are rough fir tree, oak, impregnated polyurethane (PU) oak. The wood dust contains carcinogenic PAHs at the level of μg.g -1 or ppm. During sanding operations, the PU varnish-impregnated wood produces 100 times more PAHs in dust than the unfinished wood.

Membrane Transporters as Mediators of Cisplatin Effects and Side Effects

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Giuliano Ciarimboli

2012-01-01

Full Text Available Transporters are important mediators of specific cellular uptake and thus, not only for effects, but also for side effects, metabolism, and excretion of many drugs such as cisplatin. Cisplatin is a potent cytostatic drug, whose use is limited by its severe acute and chronic nephro-, oto-, and peripheral neurotoxicity. For this reason, other platinum derivatives, such as carboplatin and oxaliplatin, with less toxicity but still with antitumoral action have been developed. Several transporters, which are expressed on the cell membranes, have been associated with cisplatin transport across the plasma membrane and across the cell: the copper transporter 1 (Ctr1, the copper transporter 2 (Ctr2, the P-type copper-transporting ATPases ATP7A and ATP7B, the organic cation transporter 2 (OCT2, and the multidrug extrusion transporter 1 (MATE1. Some of these transporters are also able to accept other platinum derivatives as substrate. Since membrane transporters display a specific tissue distribution, they can be important molecules that mediate the entry of platinum derivatives in target and also nontarget cells possibly mediating specific effects and side effects of the chemotherapeutic drug. This paper summarizes the literature on toxicities of cisplatin compared to that of carboplatin and oxaliplatin and the interaction of these platinum derivatives with membrane transporters.

The canonical wnt signal restricts the glycogen synthase kinase 3/fbw7-dependent ubiquitination and degradation of eya1 phosphatase.

Science.gov (United States)

Sun, Ye; Li, Xue

2014-07-01

Haploinsufficiency of Eya1 causes the branchio-oto-renal (BOR) syndrome, and abnormally high levels of Eya1 are linked to breast cancer progression and poor prognosis. Therefore, regulation of Eya1 activity is key to its tissue-specific functions and oncogenic activities. Here, we show that Eya1 is posttranslationally modified by ubiquitin and that its ubiquitination level is self-limited to prevent premature degradation. Eya1 has an evolutionarily conserved CDC4 phosphodegron (CPD) signal, a target site of glycogen synthase kinase 3 (GSK3) kinase and Fbw7 ubiquitin ligase, which is required for Eya1 ubiquitination. Genetic deletion of Fbw7 and pharmacological inhibition of GSK3 significantly decrease Eya1 ubiquitination. Conversely, activation of the phosphatidylinositol 3-kinase (PI3K)/Akt and the canonical Wnt signal suppresses Eya1 ubiquitination. Compound Eya1(+/-); Wnt9b(+/-) mutants exhibit an increased penetrance of renal defect, indicating that they function in the same genetic pathway in vivo. Together, these findings reveal that the canonical Wnt and PI3K/Akt signal pathways restrain the GSK3/Fbw7-dependent Eya1 ubiquitination, and they further suggest that dysregulation of this novel axis contributes to tumorigenesis. Copyright © 2014, American Society for Microbiology. All Rights Reserved.

CO2 and N2O emissions from an Andisol in Chile under a no-till system using non-fixed closed chambers Emisiones de CO2 y N2O desde un Andisol de Chile bajo sistema de cero labranza usando cámaras cerradas no-fijas

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Cristina Muñoz

2011-06-01

realizado todavía en Chile. Este trabajo tiene como objetivo determinar los flujos de emisiones in situ de CO2 y N2O desde un suelo derivado de cenizas volcánicas bajo diferentes prácticas de manejo agronómico determinando su variación estacional. Las muestras gaseosas fueron obtenidas desde el espacio aéreo de cámaras cerradas no-fijas en una rotación anual de cultivos bajo sistema de cero labranza en un Andisol del Sur de Chile (36° S. Dos fuentes de N (NH4+ y NO3- y fertilización amoniacal más dos dosis de encalado (0.5 y 1 Mg ha-1 fueron considerados como tratamientos. Los flujos de CO2 y N2O fueron determinados periódicamente en un período de 1 año y variables de suelo tales como temperatura, contenido de agua, y N mineral fueron registrados. Los resultados muestran que los flujos de CO2 responden a patrones de estacionalidad. No fue evidenciado un efecto cuando fue considerada la práctica de manejo del cultivo, con un máximo de 53.2 ± 8.5 kg CO2-C ha-1 d-1 en la estación húmeda de otoño, y un mínimo de 9.7 ± 2.1 kg CO2-C ha-1 d-1 para verano, estación seca de otoño e invierno. El flujo de N2O fue altamente variable en el año y no muestra influencia de tratamientos o estacionalidad, con un promedio de 2.6 ± 0.6 g N2O-N ha-1 d-1. Variaciones de N mineral del suelo no están relacionadas a los flujos de GHG como una variable sola. Los resultados indican que un Andisol bajo sistema de cero labranza en el Sur de Chile tiene un bajo potencial de emisiones de N2O, y las mayores emisiones de CO2 son producidas principalmente en estaciones húmedas (otoño húmedo y/o primavera.

Visual and Haptic Mental Rotation

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Satoshi Shioiri

2011-10-01

Full Text Available It is well known that visual information can be retained in several types of memory systems. Haptic information can also be retained in a memory because we can repeat a hand movement. There may be a common memory system for vision and action. On the one hand, it may be convenient to have a common system for acting with visual information. On the other hand, different modalities may have their own memory and use retained information without transforming specific to the modality. We compared memory properties of visual and haptic information. There is a phenomenon known as mental rotation, which is possibly unique to visual representation. The mental rotation is a phenomenon where reaction time increases with the angle of visual target (eg,, a letter to identify. The phenomenon is explained by the difference in time to rotate the representation of the target in the visual sytem. In this study, we compared the effect of stimulus angle on visual and haptic shape identification (two-line shapes were used. We found that a typical effect of mental rotation for the visual stimulus. However, no such effect was found for the haptic stimulus. This difference cannot be explained by the modality differences in response because similar difference was found even when haptical response was used for visual representation and visual response was used for haptic representation. These results indicate that there are independent systems for visual and haptic representations.

DIAGNOSTIC VALUE OF CYTOLOGICAL EXAMINATION OF PLEURAL FLUID IN TUBERCULOSIS

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Iffat Jamal

2018-01-01

Full Text Available BACKGROUND Tuberculosis is a worldwide health problem with highest incidence in developing countries like India. It involves a large number of organs including lungs, pleural lymph nodes, genital sytem, gastrointestinal tract, etc. In resource poor countries, cytological examination of pleural fluid serves as a rapid, effective, economical and easy method of diagnosing tubercuolus pleural effusions, which can be correlated with other newer ancillary techniques. MATERIALS AND METHODS The present study was conducted on 100 patients coming to Patna Medical College and Hospital, Patna, over a period of two years from August 2012 to September 2014 with clinical complaints of cough, fever and chest pain with a clinical diagnosis of tuberculous pleural effusion. RESULTS Pleural tapping was done and detailed cytological examination of pleural fluid was done and its findings were correlated with gross, biochemical and microbiological findings. Both wet fixed (Giemsa stained and air-dried slides (Papanicolaou stained were prepared and microscopic examination was done. Special stains like Ziehl-Neelsen stain (ZN stain for acid-fast bacilli was also performed for confirmation. CONCLUSION Cytological smears revealed predominance of lymphocytes. Mesothelial cells were absent or nearly absent. Eosinophils followed mesothelial cell pattern and were absent in a relatively large number of cases. This technique is safe, reliable, cost-effective and can be used for diagnostic purposes. It is also less traumatic as compared to pleural biopsy. Cytological examination when combined with other newer diagnostic test increases the chances of accurate diagnosis of tuberculous pleural effusion.

Diagnosis of cardiovascular diseases by means of a scintillation camera with radioisotope

Energy Technology Data Exchange (ETDEWEB)

Domeki, Kin-ichi [Tokyo Medical Coll. (Japan)

1975-01-01

Hemodynamic studies of cardiovascular disease were made on 318 patients ranging in age from 2 months to 87 years, and the diagnostic usefulness of the scinatillation camera with radioistope was evaluated forty five of the patients (aged 5 to 24), considered to be normal, were used for computing normal values. Equipment consisted of a Pho/Gamma III type scintillation camera, a 35 mm time lapse camera and a 1600 word memory sytem. Radio-pharmaceuticals used for the study were sup(113m)In and sup(99m)-Tc. Administration of the isotope was by arm injection, allowing it to pass through the heart chamber and major blood vessels as a large bolus of radioactivity. For children 3 years and under, a pinhole collimater was employed to magnify cardiac images and enhance resolution. In septal defects, right left shunting was easier to demonstrate than was left right. Atrial and/or ventricular changes in valvular disease were readily observed on the radio-angiogram and corresponded to the degree of damage. Increased blood pooling was also demonstrable. Hemodynamic changes in each chamber were established by the drafting of an isotope dilution curve, and the C/sub 2/ C, ratio, expressed as a percentage, was obtained from the curve. This safe, low risk radionuclide evaluation of the heart and major blood vessels was found to be an excellent method for use in making diagnoses of congenital heart disease, aneurysmss and obstructure arterial disease as well as for evaluating their severity.

Exhaust purification of DI spark ignition engines by means of barrier discharge. Final report; Abgasreinigung von DI-Ottomotoren durch Barrierenentladungen. Abschlussbericht

Energy Technology Data Exchange (ETDEWEB)

Wolters, P.; Lepperhoff, G.; Baumgarten, H.; Scharr, D.; Neff, W.; Trompeter, F.J.; Seiwert, S.; Kamp, J.; Pochner, K.

2000-07-01

Dielectric barrier discharge offers the advantage to excite and dissociate molecules in the exhaust gas stream. Those dissociated and excited species are oxidizing or reducing harmful exhaust gas components. The advantage of a plasma chemical system in comparison to a catalytic converter is the instantaneous activity at ambient temperature from the turn key of the engine. The investigations presented here focus on the plasma chemical oxidation of hydrocarbons in the exhaust gas stream during cold start conditions. The article concerns the design and development of a plasma system in order to decrease the hydrocarbon emissions from engine start till catalyst light off. Vehicle results in the new European driving cycle show a hydrocarbon conversion of more than 43% in the first 11 seconds from engine start. In this period nearly all types of hydrocarbon were reduced. The exhaust back pressure of the sytem is comparable to the conventional muffler. Further system improvement can be achieved by an optimization of the disk electrode design. [German] Um die strengen zukuenftigen Schadstoffemissionsgrenzwerte von Ottomotoren in der EU oder den USA einhalten zu koennen, werden derzeit weltweit auch plasmachemische Methoden zur Abgasnachbehandlung in Betracht gezogen. Insbesondere nichtthermische Atmosphaerendruck-Gasentladungen, wie die Barrierenentladung, zeigen Chancen auf, die Betriebsbedingungen und Grenzen gegenwaertiger katalytischer Techniken zu erweitern. In diesem Vorhaben wurde die Barrierenentladung zur plasmachemischen Umsetzung von Schadstoffen im Abgas eines mager betriebenen Ottomotors im Serienautomobil untersucht, um das Potential zur Abgasreinigung zu bewerten und auszuweiten. (orig.)

Dynamics of a hot (T∼107 K) gas cloud with volume energy losses

International Nuclear Information System (INIS)

Suchkov, A.A.; Berman, V.G.; Mishurov, Yu.N.

1987-01-01

The dynamics of a hot (T=10 6 -5x10 7 K) gas cloud with volume energy losses is investigated by numerical integration of gas dynamics equations. The dynamics is governed by a spherically symmetric gravitational field of the cloud and additional ''hidden'' mass. The cloud mass is taken in the range M 0 =10 10 -10 12 M sun , its radius R 0 =50-200 kpc, the ''hidden'' mass M ν =10 11 -3x10 13 M sun . The results show that in such sytems a structure can develop in the form of a dense compact nucleus with a radius R s 0 , and an extended rarefied hot envelope with a radius R X ∼ R 0 . Among the models involved are those where the gas cloud is either entirely blown up or entirely collapses; in some models, after the phase of initial expansion, part of the gas mass returns back into the system to form a nucleus and an envelope, and the other part leaves the system. The results are discussed in connection with the formation and early evolution of galaxies, the history of star formation and chemical evolution of galaxies, the origin of hot gas in galaxies and clusters of galaxies. It is suggested that in the real history of galaxies, formation of the nucleus and envelope corresponds to formation of galactic stellar component and X-ray halo

Herbal extracts and phytochemicals: plant secondary metabolites and the enhancement of human brain function.

Science.gov (United States)

Kennedy, David O; Wightman, Emma L

2011-01-01

Humans consume a wide range of foods, drugs, and dietary supplements that are derived from plants and which modify the functioning of the central nervous sytem (CNS). The psychoactive properties of these substances are attributable to the presence of plant secondary metabolites, chemicals that are not required for the immediate survival of the plant but which are synthesized to increase the fitness of the plant to survive by allowing it to interact with its environment, including pathogens and herbivorous and symbiotic insects. In many cases, the effects of these phytochemicals on the human CNS might be linked either to their ecological roles in the life of the plant or to molecular and biochemical similarities in the biology of plants and higher animals. This review assesses the current evidence for the efficacy of a range of readily available plant-based extracts and chemicals that may improve brain function and which have attracted sufficient research in this regard to reach a conclusion as to their potential effectiveness as nootropics. Many of these candidate phytochemicals/extracts can be grouped by the chemical nature of their potentially active secondary metabolite constituents into alkaloids (caffeine, nicotine), terpenes (ginkgo, ginseng, valerian, Melissa officinalis, sage), and phenolic compounds (curcumin, resveratrol, epigallocatechin-3-gallate, Hypericum perforatum, soy isoflavones). They are discussed in terms of how an increased understanding of the relationship between their ecological roles and CNS effects might further the field of natural, phytochemical drug discovery.

Herbal Extracts and Phytochemicals: Plant Secondary Metabolites and the Enhancement of Human Brain Function1

Science.gov (United States)

Kennedy, David O.; Wightman, Emma L.

2011-01-01

Humans consume a wide range of foods, drugs, and dietary supplements that are derived from plants and which modify the functioning of the central nervous sytem (CNS). The psychoactive properties of these substances are attributable to the presence of plant secondary metabolites, chemicals that are not required for the immediate survival of the plant but which are synthesized to increase the fitness of the plant to survive by allowing it to interact with its environment, including pathogens and herbivorous and symbiotic insects. In many cases, the effects of these phytochemicals on the human CNS might be linked either to their ecological roles in the life of the plant or to molecular and biochemical similarities in the biology of plants and higher animals. This review assesses the current evidence for the efficacy of a range of readily available plant-based extracts and chemicals that may improve brain function and which have attracted sufficient research in this regard to reach a conclusion as to their potential effectiveness as nootropics. Many of these candidate phytochemicals/extracts can be grouped by the chemical nature of their potentially active secondary metabolite constituents into alkaloids (caffeine, nicotine), terpenes (ginkgo, ginseng, valerian, Melissa officinalis, sage), and phenolic compounds (curcumin, resveratrol, epigallocatechin-3-gallate, Hypericum perforatum, soy isoflavones). They are discussed in terms of how an increased understanding of the relationship between their ecological roles and CNS effects might further the field of natural, phytochemical drug discovery. PMID:22211188

PERAN KOMITE KESEHATAN PROVINSI/JHC SEBAGAI UPAYA PEMBERDAYAAN MASYARAKAT DALAM PEMBANGUNAN KESEHATAN

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Niniek Lely Pratiwi

2012-11-01

Full Text Available This research analyzed the role of Joint Health Council in efforts to Health building in community of empowering. This was an crossectional study, research using qualitative and quantitative data. It was conducted in three provinces: Lampung, Bali, and west Java in which each Province two districts were selected with criteria of representative pilot projectof PHPI, PHPII and DHSI. Results showed that the roles and performance of Joint Health Councill mean is a very lower to expectance, the socialization 33.3% respondent, to advocate 16.7-33.3%. Mean for grand meeting ones per years old for JHC West Java and JHC Lampung. Since tahun 2002 until th 2005 a launching JHC Bali, grand meeting one/years old. The function to watch, to serve, and to advocate was the lower in health building capacity. The commitment is lower for JHC member's in the present discussion or grand meeting with level for present member's was 30-40%. The lower to understanding for jobs descriptions to JHC member's, not yet steering commiittee in consist and fixed. The organizations JHC considered these member's performance: commitment, present for meeting and managerial system by transparency, public of accountable, and monitoring evaluations activity. Based on suggested of member's: proffessionalitas, person of birocration 10%, Maximal optimation on roles and the allocation of budget by effective and efficient with value investation sytems a longe time, accountable and transparancy. Key words: community of organization, Joint Health Council, community of empowering

Ordered and disordered evolution of the pore mesostructure in hybrid silica anti-reflective films obtained by one-pot self-assembly method

Energy Technology Data Exchange (ETDEWEB)

Ghazzal, Mohamed N., E-mail: g_nawfel@yahoo.fr; Debecker, Damien P.; Gaigneaux, Eric M.

2016-07-29

Hybrid mesoporous silica films were prepared in acid-catalysed medium using a one-pot self-assembly method. A gradual content of methyl groups was introduced into the inorganic framework by co-condensation of tetraethyl orthosilicate and methyltriethoxysilane. To better understand how the ordered and disordered transition occurs in mesoporous hybrid organosilica sytem as function of the MTES molar ratio in the starting solution, textural, chemical and optical properties of the films were studied by transmission electronic microscopy (TEM), grazing-incident small angle X-ray scattering (GISAXS), transmission Fourier transformed infrared (FTIR) and UV–visible spectroscopy. Increasing the loading of the incorporated organic groups (up to 40% in the starting solution) led simultaneously to a disorganization of the pore mesostructure and a reduction in the pore diameter. Concomitantly, a disordered domain of the silica rings in the walls was observed, which created bond strains in the silica wall contributing also to the disorganization of the pore mesostructure. Furthermore, an optimal MTES content was identified in order to obtain antireflection coatings, exhibiting low reflection in the visible range. - Highlights: • Mesoporous hybrid silica films where prepared by one-pot co-condensation of MTES and TEOS. • Ordered and disordered mesostructures were studied as function as variable MTES molar ratio. • A rearrangement of the silica cyclic species occurred as the molar ratio of MTES increases. • Transmittance of the silica coatings is affected by the MTES molar ratio.

Particle contamination in gas-insulated systems: new control methods and optimum SF6/N2 mixtures

International Nuclear Information System (INIS)

Pace, M.O.; Adcock, J.L.; Christophorou, L.G.

1984-01-01

The feasibilities of two new separate techniques to control particle contamination in practical gas-insulated sytems were tested in a small-scale concentric cylinder geometry. In one technique an insulating coating was first formed on the particles in a contaminated system by low-pressure discharges in appropriate gases such as 1-C 3 F 6 and c-C 4 F 8 . When SF 6 was subsequently introduced into the same system at practical pressure as the operating insulation, the considerable harm ordinarily caused by particles was found to be eliminated. The nature of the coating formed also on the electrodes in this process was studied, with the conclusion that the observed benefits were primarily due to coating on particles, not on electrodes. In the second technique the particles, moved randomly by electrical stress, struck and adhered to the surface of a tacky insulating solid material; they were subsequently encapsulated in a melt-resolidify cycle without electrical stress. This trapping technique was also found to eliminate the harmful effects of particles in SF 6 at practical pressure. A technique for producing a trapping material with temperature characteristics appropriate for practical apparatus was devised. The effect of particle contamination on the dielectric strength of SF 6 /N 2 mixtures was studied as a function of total pressure and percentage of each gas. Optimum total pressure (approx. 6 atm) and optimum percentages (60% SF 6 /40% N 2 ) were observed in breakdown tests in particle-contaminated concentric cylinder geometry

PRESENCE OF BCMV AND BCMNV IN FIVE DRY BEAN-PRODUCING STATES IN MEXICO.

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Daniel Lepe-Soltero

2012-08-01

Full Text Available A survey was conducted to assess the frequency of BCMV and BCMNV in five of the main dry bean producing states in Mexico during the spring-summer 2009 and fall-winter growing seasons 2009-2010. States included in the survey were Nayarit, Sinaloa and Sonora in the pacific west coast, Veracruz in the gulf coast and Guanajuato in central Mexico. A total of 338 samples were collected and analyzed by RT-PCR with specific primers for each viral species. Forty-four samples (13% gave positive reaction for BCMV, 70 (21% for BCMNV and 30 (9% were positive for both viral species, 164 (48% were negative for both viruses and 30 (9% could not be defined as of yet. As for cultivars, Azufrado Higuera (Nueva Granada race grown at Sinaloa showed the highest frequency (33% of BCMV, whereas Negro Jamapa (Mesoamerica race from Nayarit displayed highest frequency (50% of BCMNV. In these two states the percentage of positive samples for either viral species was 80%. In addition, in cultivar Negro Jamapa mixed infections of both viruses were detected. Results point out a high risk of viral infection with seed movement across states, particularly since both viral species are seed transmitted and in the states at the pacific west coast, large seed lots are produced during the fall-winter season. Key words: BCMV, BCMNV, bean plants viruses RESUMEN Se llevó a cabo un muestreo en campo para estimar la frecuencia de la ocurrencia de BCMV y BCMNV en cinco estados productores de frijol en México durante los periodos de cultivo primavera-verano y otoño-invierno en el 2009 y 2009/2010. Los estados incluidos en el estudio fueron Nayarit, Sinaloa y Sonora en la costa del pacifico, Veracruz en la costa del golfo y Guanajuato en el centro de México. Se colectó un total de 338 muestras que se analizaron por RT-PCR con iniciadores específicos para cada una de las dos especies virales. Cuarenta y cuatro muestras (13% resultaron positivas para el BCMV, 70 (20% para el

Physical property, phase equilibrium, distillation. Measurement and prediction of vapor-liquid and liquid-liquid equilibria; Bussei / heiko / joryu. Kieki, ekieki heiko no sokutei to suisan

Energy Technology Data Exchange (ETDEWEB)

Tochigi, K. [Nihon Univ., Tokyo (Japan)

1998-08-05

The data on vapor-liquid equilibrium are basic data indispensable to the designing of a distillation process. The stage required for separation depends greatly upon the x-y curve, and the existence/nonexistence of an azeotropic point is also an important item to be checked. This paper describes the measurement of vapor-liquid equilibrium and liquid-liquid equilibrium, and then introduces reliable data on vapor-liquid equilibrium and parameters of an activity coefficient formula. For the prediction of vapor-liquid equilibrium, the ASOG, UNIFAC, and modified NIFAC, all being group contributive methods are utilized. The differences between these group contributive methods are based on the differences between the contributive items based on the differences in size of molecules influencing the activity coefficients and the expression of the group activity coefficient formula. The applicable number of groups of the ASOG is 43, while that of groups of the UNIFAC is 50. The modified UNIFAC covers 43 groups. The prediction of liquid-liquid equilibrium by using a group contributive method has little progressed since the of the results of the study of Magnussen et al. using the UNIFAC. 12 refs., 8 figs., 1 tab.

Fundamental principles of a new EM tool for in-situ resistivity measurement. 2; Denji yudoho ni yoru gen`ichi hiteiko sokutei sochi no kento. 2

Energy Technology Data Exchange (ETDEWEB)

Noguchi, K; Aoki, H [Waseda University, Tokyo (Japan). School of Science and Engineering; Saito, A [Mitsui Mineral Development Engineering Co. Ltd., Tokyo (Japan)

1997-10-22

In-situ resistivity measuring devices are tested for performance in relation to the principle of focusing. After numerical calculation, it is shown that in the absence of focusing the primary magnetic field will prevail and that changes in the separate-mode component will be difficult to detect in actual measurement because the in-phase component assumes a value far larger than the out-of-phase component. Concerning the transmission loop radius, the study reveals that a larger radius will yield a stronger response and that such will remove the influence of near-surface layers. Two types of devices are constructed, one applying the principle of focusing and the other not, and both are activated to measure the response from a saline solution medium. The results are compared and it is found that focusing eliminates the influence of the primary magnetic field and that it enables the measurement of changes in resistivity of the medium which cannot be detected in the absence of focusing. 3 refs., 9 figs.

Experimental study on the response of very large floating structures (VLFS) in wave; Choogata futaishiki kaiyo kozobutsu no harochu oto ni kansuru jikkenteki kenkyu

Energy Technology Data Exchange (ETDEWEB)

Ota, M; Ikegami, H; Yamaguchi, Y [Mitsubishi Heavy Industries, Ltd., Tokyo (Japan)

1997-10-01

The elastic response of VLFS of 1200m long in wave was studied experimentally using a water tank and integral elastic model of 1/80 scale. As offshore airport, a ultra- thin box type floating structure of 5km long, 1km wide and several meter thick is used, and the effect of elasticity is not negligible for such a structure. The experiment used a water tank of 160m long, 30m wide and 3.1m deep. Supposing a water depth of 20m for real VLFSs, the experiment was carried out mainly in a local shallow water area prepared with a temporary bottom together with that in a deep water area. A simple mooring equipment with a linear spring equivalent to real VLFSs was used. The integral floating model was prepared by not mechanical but welded junction to obtain uniform elasticity. The response in wave showed a complicated 3-D behavior, offering useful data for verification of a behavior estimation method. The response was nearly equal between shallow and deep water areas at the same wave length, and the response amplitude in regular waves was equivalent to the significant amplitude in long and short crested irregular waves. 7 refs., 8 figs., 3 tabs.

Reduction of seismic response long-span PC cable-stayed bridge by passive dampers; Damper ni yoru saidai PC shachokyo no jishinji oto no teigen

Energy Technology Data Exchange (ETDEWEB)

Takeda, T.; Yamanobe, S.; Niihara, Y. [Kajima Corp., Tokyo (Japan)

1994-10-31

It is important in designing a PC cable-stayed bridge to properly estimate the seismic response of the bridge for reduction of the response. In this paper, an improvement of the seismic resistance of PC cable-stayed bridges when dampers are installed between the deck and piers and lateral vibration of the deck is restricted is investigated using a time history response model. PC cable-stayed bridges with a span length of 400 m, particularly two types of bridges of harp and semi-harp are investigated and the following is found by analyzing the case where there are installed hysteresis type dampers (with 1 cm yield displacement and secondary rigidity assumed to be 1/10 times that of initial rigidity, the initial rigidity being parametrically changed.) or viscous type dampers (a damping factor is changed.) The result shows that the dampers can reduce the seismic response of a PC cable-stayed bridge and that a semi-harp configuration of stay cables where stay cable members are substantially vertically arranged is more effective than a harp configuration for the seismic performance of PC cable-stayed bridges. The damper partly bear inertial force of the bridge upon earthquake whereby tension of the stay cable members is reduced and bending moment of the deck is reduced. There is existing an optimum characteristic value of the damper concerning the bending moment of the piers. 5 refs., 7 figs., 2 tabs.

[Solitary actinomycotic brain abscess: case report].

Science.gov (United States)

Takahashi, Kiyoshi; Hasegawa, Yoshihito; Nishimoto, Yo; Hayashi, Satoru; Yamasaki, Masahiro; Kuzume, Daisuke; Hashimoto, Keiko; Enzan, Hideaki

2012-06-01

Actinomycotic brain abscess is a rare condition with uncertain clinical features. Here we report the case of a 66-year-old immune-competent woman with an actinomycotic brain abscess who presented with sensory aphasia and mild right hemiparesis. She had no febrile episode or headache. Moreover, she did not have any periodontal or oto-rhino-laryngological disease, and the results of laboratory tests were normal. A computed tomography scan showed an irregular, low-density area in the left parietal lobe. Subsequent magnetic resonance imaging showed low-signal intensity in a T1 weighted image, high-signal intensity in a T2 weighted image, and mixed intensity on a diffusion weighted image. Thallium-201 chloride scintigraphy showed definite accumulation of thallium in the lesion and the patient's condition gradually deteriorated. Ten days after gadolinium administration, a T1 weighted image showed a multi- lobulated irregular mass in the left parietal lobe. The patient subsequently underwent craniotomy and evacuation of the yellowish abscess. Gram staining of the tissue showed the presence of gram-positive filamentous rods, and abscess cultures were positive for Actinomyces and Prevotella disiens. The abscess resolved after treatment with a high dose of intravenous penicillin G (24 million units/day) for 8 weeks, followed by an oral dose of amoxicillin for 4 months. The patient was discharged with a rudimentary limitation of the visual field.

Evaluación de líneas de frijol negro, en Veracruz y Chiapas, México

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Ernesto Lopez

2001-01-01

Full Text Available Evaluación de líneas de frijol negro, en Veracruz y Chiapas, México. El presente estudio se llevó a cabo durante los ciclos agrícolas de 1999-2000 y 2000-2001; se evaluó la adaptación y rendimiento de 15 líneas avanzadas de frijol negro, así como un testigo local. Dichos genotipos forman parte al Ensayo Centroamericano de Adaptación y Rendimiento (ECAR. La evaluación se realizó en 11 localidades, cinco en el estado de Chiapas y seis en Veracruz, los experimentos se establecieron bajo condiciones de riego, temporal y humedad residual. Las líneas ICTA-Ju 97-1, ICTA-Ju II- 307, DOR-678 y Cut-45, resultaron sobresalientes por su rendimiento, amplia adaptación y estabilidad. En el ciclo agrícola de otoño-invierno 1999-2000, se evaluó la respuesta de las líneas a las siguientes enfermedades: mosaico dorado (BGMV, mancha angular (Phaseoisariopsis griseola, roya (Uromyces appendiculatus y la antracnosis (Colletotrichum lindemuthianum. Las líneas que resultaron tolerantes fueron ICTA Ju 97-1 y Cut-45. Ambas serán validadas en campos de agricultores para su posible liberación como nuevas variedades para algunas regiones productoras de Veracruz y Chiapas, México

A systematic search for linkage with nonsyndromic recessive deafness in two large Middle Eastern inbred kindreds excludes more than 30% of the genome

Energy Technology Data Exchange (ETDEWEB)

Weiss, S.; Korostishevsky, M. [Sackler Faculty of Medicine, Ramat-Aviv (Israel); Frydman, M. [Haim Sheba Medical Center, Tel-Hashomer (Israel)] [and others

1994-09-01

It has been estimated that as many as 35 loci may individually cause autosomal recessive non-syndromic deafness. The extreme genetic heterogeneity, limited clinical differentiation and phenotypic assortative mating in many western countries make many families unsuitable for genetic linkage studies. Recently the first of those loci was mapped (to 13q) in two consanguineous families from northern Tunisia. We are studying two large highly consanguineous Middle Eastern kindreds (a total of 26 deaf in 98 sampled individuals). Examination in each family showed no evidence of clinical heterogeneity and indicated an uncomplicated profound bilateral sensorineural deafness. We have been able to exclude the 13q locus as the cause of deafness in each kindred and have also excluded such `candidate` loci as regions as those causing Usher`s syndrome type 1 (11q13)(11p), Usher`s syndrome type II (1q32-q41), Waardenburg syndrome type I (2q37), branchio-oto-renal syndrome (8q12-q13), Monge`s deafness (5q31), and Treacher Collins syndrome (5q31.3-q33.3). To date, no lod scores greater than 1 have been obtained in either kindred using 150 RFLT`s, VNTR`s and highly polymorphic microsatellite markers (CA repeats and tetranucleotides). By Morton`s criterion a minimum of 30% of the autosomal genome can be excluded for each kindred separately.

Transient threshold shift after gunshot noise exposure.

Science.gov (United States)

Saedi, B; Ghasemi, M; Motiee, M; Mojtahed, M; Safavi, A

2013-01-01

Many people, such as soldiers, are routinely exposed to gunshot noise during target practice. It is suspected that this high-intensity noise may affect audition through repeated Transient Threshold Shifts (TTS); it can also mechanically alter auditory components such as waves. This study investigates the scope of gunshot noise from the AK-47 rifle (Kalashnikov) and the impact on the shooters' audition. Forty soldiers (80 ears) were recruited in this study. They were all young and being exposed to gunshot noise for the first time. Gunshot characteristics were measured before exposure. The soldiers underwent auditory evaluation with Pure Tone Audiometry (PTA) and Oto-Acoustic Emission (OAE) once before exposure and immediately (less than one hour) after exposure. The AK-47 gunshot noise pressure level varied between L(AIm) = 73.7 dBA to L(AIm) = 111.4 dBA. Fourteen participants had subclinical hearing impairment in their pre-exposure evaluation; this number increased to 16 after the exposure. Six months post-exposure and later, the number of cases with impairment had fallen to eight (improvement in 50%). Both pre- and post-exposure OAE results were within normal values, while PTA results indicated a significant threshold alteration only at 6 kHz. The results of this study confirm that exposure to gunshot noise with no ear protection can represent a significant hazard for auditory function, especially at higher frequencies.

THE STRUCTURAL FABRIC AND SEISMOTECTONIC ACTIVITY OF NORTHERN VELEBIT: SOME NEW OBSERVATIONS

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Eduard Prelogović

1998-12-01

Full Text Available A permanent seismotectonic activity is present in the region of northern Velebit. Through history a number of earthquakes magnitudes of VIII° and IX° MCS are reported. In this century the most powerful earthquake of a magnitude of 5.8 occurred in 1916. The key tectonic movements that cause these earthquakes are dislocations of the Adriatic platform towards the north and the resistance of the Dinarides towards these movements. The tectonic dynamics of a structural arrangement depend on the relationship between stress and the deformation of structural units. According to the tectonic measurements performed on outcrops of major faults the following orientation of stress was obtained: from 20/25° to 200/205° in the northern Velebit region and 340 to 160° in the hinterland. Within the structural arrangement compression of space occurs which is well pronounced in the Novi Vinodolski area. Possible deformation of structures is manifested spatial diagonal reverse displacements accompanied by rotation of the structure. In the Velebit hinterland right horizontal tectonic transport was determined. In the zone of the transcurrent faull Žuta Lokva-Otočac-Bunić the spatial opening leads to the formation of pull-apart structures. Seismotectonically active zones occur in the contact region between the Adriatic platform and the Dinaridcs. Spatially its position is inclined and bent.

Evangelismo y sensibilidad religiosa en la Sevilla del quinientos: consideraciones acerca de la represión de los luteranos sevillanos

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Michel BOEGLIN

2009-12-01

Full Text Available RESUMEN: En el otoño de 1557, la incautación de libros de propaganda protestante en Sevilla iba a convencer rápidamente a los inquisidores que no se encontraban ante una simple tentativa de introducir obras reformadas en la capital de la Bética sino que se enfrentaban a una difusión, en distintos círculos de la sociedad, de doctrinas contrarias a la ortodoxia católica tal y como acababa de redefinirse entre 1547 y 1552, durante las primeras sesiones del Concilio de Trento. La religiosidad de algunas figuras destacadas de la «comunidad» de Sevilla no se limita a una simple reformulación de tesis erasmistas como se ha venido afirmando a menudo, sino que revela una convergencia hacia la Reforma y una adhesión al núcleo doctrinal protestante en diversos aspectos.ABSTRACT: The discovery, in the autumn of 1557, of a delivery of books on Protestant propaganda in Seville, convinced inquisitors of the existence of circles that advocated doctrines in contradiction with the catholic orthodoxy redefined between 1547 and 1552 during the first Council of Trent sessions. The religious inclination of some outstanding figures of the Seville community did not — contrary to what has often been said— merely suscribe to the Erasmist theories; some aspects of trie Reformation also appealed to them.

Patrones de variabilidad ambiental en el mar peruano

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Roberto Flores

2013-10-01

Full Text Available Se describen los escenarios ambientales y los patrones de variabilidad observados en el mar peruano a partir del análisis de información obtenida por el Instituto del Mar del Perú entre los años 1960 – 2011. Se examinan datos de cruceros de investigación oceanográfica, de evaluación de recursos pesqueros y bío-oceanográficos, además de información de diversas publicaciones sobre el mar peruano y sus recursos. Los datos de temperatura, salinidad y contenido de oxígeno, fueron interpolados para obtener promedios mensuales y construir series espaciales y temporales. En la superficie, las Aguas Costeras Frías (ACF y Aguas Subtropicales Superficiales (ASS crean condiciones ambientales diferentes a las de la parte subsuperficial donde predomina la intromisión de las aguas ecuatoriales a través de la Corriente Subsuperficial Perú-Chile (CSPC. En el norte, durante el verano y otoño, predominan en la capa superficial aguas cálidas de origen ecuatorial. En el centro, aguas de origen ecuatorial interactúan con las ACF del afloramiento costero. El sur está influenciado por las ASS y el afloramiento costero con mayor intensidad, indicando una mayor actividad en el Sistema de la Corriente del Perú (SCP.

Classroom acoustics and hearing ability as determinants for perceived social climate and intentions to stay at work

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Roger Persson

2013-01-01

Full Text Available Background noise and room acoustics may impede social interactions by interfering with oral communication and other cognitive processes. Accordingly, recent research in school environments has showed that social relationships with peers and teachers are described more negatively in rooms with long reverberation times (RT. The purpose of this study was to investigate how RT and hearing ability (i.e., hearing thresholds [HT] and distortion product oto-acoustic emissions were associated with schoolteachers′ perceptions of the social climate at work and their intentions to stay on the job. Schoolteachers (n = 107 from 10 schools that worked in classrooms classified by acoustical experts as "short RT" (3 schools, mean RT 0.41-0.47 s, "medium RT" (3 schools, mean RT 0.50-0.53 s, and "long RT" (4 schools, mean RT 0.59-0.73 s were examined. Teachers who worked in classrooms with long RT perceived their social climate to be more competitive, conflict laden, and less relaxed and comfortable. They were more doubtful about staying on the job. Even if the teachers were generally satisfied with their work the results suggest that the comfort at work may have been further improved by acoustical interventions that focus on reducing sound reflections in the classrooms. Yet, due the study design and the novelty of the findings the potential practical significance of our observations remains to be evaluated.

Ortega, psicólogo y la superación de sus maestros

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Nelson R. ORRINGER

2009-11-01

Full Text Available En noviembre de 1915, Unamuno celebró que hubiera surgido en España un interés por el examen filosófico de los problemas de la conciencia. Había asistido a «una conferencia sobre Filosofía de una serie tendiente a mostrar la diferencia entre la Psicología y la Lógica, que las da Ortega, y levanta el ánimo ver la cantidad y la calidad de los oyentes». No parece imposible que Unamuno hubiese escuchado parte del curso público de quince lecciones de psicología, dadas por Ortega en el otoño de 1915 y en el invierno de 1916. Curso cuyo texto incompleto había de salir publicado en 1982 con el título que le puso Paulino Garagorri, Investigaciones psicológicas. Garagorri reconocía la importancia del curso para aclarar la evolución filosófica de Ortega, pues en sus lecciones anunció su «superación del idealismo o subjetivismo». No sospechaba Garagorri, sin embargo, que el curso había de esclarecer además lo que entendía Ortega por el concepto de «superación ». Hasta ahora, la imposibilidad de saberlo ha hecho inciertas las relaciones de Ortega con sus fuentes idealistas.

Matching of wind turbine type and system scale to wind conditions; Chiten no fukyo ni taisuru furyoku turbine no keitai to sytem taikaku no seigosei ni tsuite

Energy Technology Data Exchange (ETDEWEB)

Wakui, T. [Japan Society for the Promotion of Science, Tokyo (Japan); Tanzawa, Y. [Nippon Institute of Technology, Saitama (Japan); Ota, E. [Waseda University, Tokyo (Japan). School of Science and Engineering; Hashizume, T.

2000-09-25

The matching of the wind turbine type and system scale of the stand-alone wind turbine generator system to wind conditions is investigated using our dynamic simulation model. This paper examines three types of wind turbines: the Darrieus-Savonius hybrid wind turbine, the Darrieus turbine proper and the up-wind Propeller turbine. These systems are mainly operated at a constant tip speed ratio, which refers to a maximum power coefficient. As a computed result of the net extracting energy under fluctuations of wind speed and direction, the Darrieus turbine proper has little conformability to wind fluctuations because of its output characteristics. As for other wind turbines, large-scale systems do not always have advantages over small-scale systems as the effect of the dynamic characteristics. Furthermore, it is confirmed that the net extracting power of the Propeller turbine under wind direction fluctuations is much reduced when compared with that of the hybrid wind turbine. Thus, it is concluded that the appropriate wind turbine type and system scale exist for each wind condition. (author)

PEMAHAMAN SUMBER DAYA MANUSIA KESEHATAN DI PUSKESMAS TENTANG MANAJEMEN DATA HUBUNGAN PELANGGAN: Studi Kasus Di Puskesmas Sebulu dan Puskesmas Loa Ipuh Kabupaten Kutai Kartanegara, Provinsi Kalimantan Timur

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Evie Sopacua

2012-11-01

Full Text Available Health centres (HCs were in the period of transition into business institutions and therefore it needs marketing strategy such as Customer Relationship Marketing by managing data of patients as customers. Understanding the customer relationship data management was conducted through implementation of module 'Entrepreneurship in Health Services with Customer Relationship Marketing'. The objective of this study was to identify the understanding of human health resources in HCs about customer relationship data management through module implementation. The locations of the study were in Loa Ipuh and Sebulu 1 HCs in Kutai Kartanegara District, East Kalimantan Province. Respondents were human health resources of HCs who participated in the implementation process. Data were collected by conformity of the module contents with its standards of six variables on customer relationship data management in the learning and coachmg processes. The results showed that in learning process the respondents in Loa Ipuh and Sebulu 1 HCs were on the category of less understood. But in the coaching process, the category of respondents in both HCs was of understood. One of the reasons was that coaching process helps to understand the data management in the implementation process through discusston which followed by problem solving. The implementation of the customer relationship data managing needs a change in the human resources mindset not only in the HCs but also in the supra sytem as the District Health Office and District Governments. Therefore customer relationship data management should be represented among them to achieve the same perseption in striving HCs into busniess institutions.   Keywords: customer relationship data management

FORECASTING AND MONITORING AGRICULTURAL DROUGHT IN THE PHILIPPINES

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G. J. Perez

2016-06-01

Full Text Available A monitoring and forecasting sytem is developed to assess the extent and severity of agricultural droughts in the Philippines at various spacial scales and across different time periods. Using Earth observation satellite data, drought index, hazard and vulnerability maps are created. The drought index, called Standardized Vegetation-Temperature Ratio (SVTR, is derived using the Normalized Difference Vegetation Index (NDVI and Land Surface Temperature (LST. SVTR is evaluated by correlating its values with existing agricultural drought index, particulary Evaporative Stress Index (ESI. Moreover, the performance of SVTR in detecting drought occurrences was assessed for the 2015-2016 drought event. This period is a strong El Niño year and a large portion of the country was affected by drought at varying degrees, making it a good case study for evaluating drought indices. Satellitederived SVTR was validated through several field visits and surveys across different major agricultural areas in the country, and was found to be 73% accurate. The drought hazard and vulnerability maps are produced by utilizing the evapotranspration product of MODIS, rainfall climatology from the Tropical Rainfall Microwave Mission (TRMM and ancillary data, including irrigation, water holding capacity and land use. Finally, we used statistical techniques to determine trends in NDVI and LST and generate a sixmonth forecast of drought index. Outputs of this study are being assessed by the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA and the Department of Agriculture Bureau of Soils and Water Management (DABSWM for future integration in their operations.

Saltstone: cement-based waste form for disposal of Savannah River Plant low-level radioactive salt waste

International Nuclear Information System (INIS)

Langton, C.A.

1984-01-01

Defense waste processing at the Savannah River Plant will include decontamination and disposal of approximately 400 million liters of waste containing NaNO 3 , NaOH, Na 2 SO 4 , and NaNO 2 . After decontamination, the salt solution is classified as low-level waste. A cement-based waste form, saltstone, has been designed for disposal of Savannah River Plant low-level radioactive salt waste. Bulk properties of this material have been tailored with respect to salt leach rate, permeability, and compressive strength. Microstructure and mineralogy of leached and unleached specimens were characterized by SEM and x-ray diffraction analyses. The disposal system for the DWPF salt waste includes reconstitution of the crystallized salt as a solution containing 32 wt % solids. This solution will be decontaminated to remove 137 Cs and 90 Sr and then stabilized in a cement-based waste form. Laboratory and field tests indicate that this stabilization process greatly reduces the mobility of all of the waste constitutents in the surface and near-surface environment. Engineered trenches for subsurface burial of the saltstone have been designed to ensure compatibility between the waste form and the environment. The total disposal sytem, saltstone-trench-surrounding soil, has been designed to contain radionuclides, Cr, and Hg by both physical encapsulation and chemical fixation mechanisms. Physical encapsulation of the salts is the mechanism employed for controlling N and OH releases. In this way, final disposal of the SRP low-level waste can be achieved and the quality of the groundwater at the perimeter of the disposal site meets EPA drinking water standards

Increase in information by improvement of measuring method in a multichannel taste sensor; Multichannel aji sensor no sokutei hoho no kairyo ni yoru johoryo no zoka

Energy Technology Data Exchange (ETDEWEB)

Ikezaki, H.; Taniguchi, A. [Anritsu Corp., Tokyo (Japan)

1998-11-01

We have developed a multichannel taste sensor with lipid membranes which can detect and quantify the basic taste substances in aqueous solution. The aim of the present study is to increase selectivity to adsorptive taste substances (bitter, umami and astringent taste substances) for quantification of taste by improving measuring methods. High selectivity to adsorptive taste substances is obtained by CPA measurement algorithm (CPA: Change of membrane Potential caused by Adsorption). High repeatability is also obtained by developing a cleaning technique of taste sensor. 18 refs., 8 figs., 5 tabs.

Arbuscular mycorrhizal infection in two morphological root types of Araucaria araucana (Molina K. Koch Infección por micorrizas arbusculares en dos tipos de raíces de Araucaria araucana (Molina K. Koch

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P. Diehl

2010-06-01

presentaron una importante simbiosis micorrícico-arbuscular (MA, con abundante desarrollo de hifas intracelulares y rulos, característico del tipo anatómico Paris. También se observaron hifas marrones septadas. Los valores totales de colonización MA fueron altos, con porcentajes parciales similares en cada clase radicular. Se encontraron diferencias estacionales en los porcentajes de infección (totales y parciales, con valores mayores en primavera comparados con los de otoño. Los porcentajes de estructuras fúngicas presentes en cada clase radicular fueron similares para vesículas y arbúsculos, pero se observaron mayores valores de rulos en las RCG que en las RFL. Los porcentajes de vesículas aumentaron en otoño, mientras que los de arbúsculos lo hicieron en primavera, en coincidencia con el pico de crecimiento vegetativo de los árboles. Los resultados muestran una fuerte asociación simbiótica MA con A. araucana y su relevancia en términos ecológicos en respuesta a la deficiencia de nutrientes en el suelo, en especial, a la alta retención de fósforo.

Estudio Ficológico de lagos urbanos artificiales del sur de la provincia de Córdoba Phycological study of artificial urban reservoirs of the South of the province of Córdoba

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Martín David Novoa

2006-12-01

Full Text Available El presente trabajo fue realizado en dos lagos urbanos artificiales de Río Cuarto (Córdoba: Parque Sarmiento y Villa Dalcar, durante el año 2003. El objetivo fue: conocer y comparar la composición algal, su relación con parámetros ambientales y registros bacteriológicos en ambos lagos. Se determinaron 275 taxa: 178 Bacillariophyceae , 60 Chlorophyceae , 21 Cyanophyceae , 13 Euglenophyceae , 2 Dinophyceae y 1 Chrysophyceae . Las especies y/o variedades fueron registradas por primera vez para el área de estudio, 53 son nuevas citas para la provincia de Córdoba y 8 para la Argentina. El lago con mayor número de especies propias fue el Villa Dalcar. El Parque Sarmiento en otoño, registró un gran número de clorofíceas propias de este lago. Se evidenciaron dos floraciones en el lago Villa Dalcar: estival de Aphanizomenon flos-aquae y primaveral de Peridinium pusillum . El índice de Jaccard evidenció la mayor similitud entre los sitios Este y Centro en otoño, para el lago Parque Sarmiento y Salida y Malón, en verano, para el lago Villa Dalcar. Según el Índice de Sorensen-Dice aplicado a ambos lagos y estaciones del año, la máxima similitud fue entre los sitios Salida del Villa Dalcar y Este del Parque Sarmiento, en invierno. En primavera y verano se registró un número elevado de bacterias coliformes en el sitio Puente Oeste del lago Parque Sarmiento , y en el sitio el Malón del lago Villa Dalcar, en verano.The present work was carried out in two urban lakes in Río Cuarto (Córdoba, Argentina: Parque Sarmiento and Villa Dalcar, during the year 2003. The objective was to know and to compare the algal composition and its relation with environmental parameters and bacteriological registries in both lakes. 275 taxa were determined: 178 Bacillariophyceae , 60 Chlorophyceae , 21 Cyanophyceae , 13 Euglenophyceae , 2 Dinophyceae and 1 Chrysophyceae. The species and/or varieties are registred for the irst time in the study area, 53 are

Inhibiton of Yellow Nutsedge (Cyperus esculentus L. and Bermudagrass (Cynodon dactylon (L. Pers by a Mulch Derived from Rye (Secale cereale L. in grapevines Inhibición del Crecimiento de Chufa (Cyperus esculentus L. y Pasto Bermuda (Cynodon dactylon (L. Pers. con mulch Vegetal Proveniente de Centeno (Secale cereale L. en Vides

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Juan Ormeño-Núñez

2008-09-01

Full Text Available Two field trials (Los Andes 1998-1999 and Santiago 2004-2005 were carried out to determine growth inhibition of yellow nutsedge (Cyperus esculentus L. and bermudagrass (Cynodon dactylon (L. Pers., growing on the plantation row, by mulch derived from a rye (Secale cereale L. cover crop established between grapevine (Vitis vinifera L. rows on overhead (cv. Flame Seedless and vertical (cv. Cabernet Sauvignon training. Spring mowing of the rye sown in the fall allowed for developing a thick and long lasting mulch along the grape rows. Nutsedge and bermudagrass control was 81 and 82%, respectively, and was more effective than conventional chemical (in the row + mechanical (between rows control. Glyphosate at 2% for nutsedge and 1% for bermudagrass control, applied twice (October and December, was insufficient to control either perennial weed adequately. Total broadleaved and grass/sedge weed control was 67.3 and 43.0% more effective with the rye mulch than with conventional treatments at Los Andes and Santiago, respectively. Perennial weed control levels could be explained as the new foliage of yellow nutsedge and bermudagrass was particularly susceptible to the shading provided by the rye mulch assembled prior to mid spring shoot emergence, and this effect remained active up until the beginning of autumn. The subsequent rye foliage mowing at the vegetative stage fully expressed the allelopathic effect produced by this local rye cultivar. The use of rye cover crop management and mulch could be applied as an effective weed control technique in conventional, as well as organic deciduous tree orchards.En dos ensayos de campo (Los Andes 1998-1999 y Santiago 2004-2005 se determinó el efecto inhibitorio sobre chufa (Cyperus esculentus L. y pasto bermuda (Cynodon dactylon (L. Pers. de residuos de centeno (Secale cereale L. establecido en otoño entre las hileras de vides (Vitis vinifera L. en parronal (cv. Flame Seedless y espaldera (cv. Cabernet Sauvignon

Characterization of interactions of coal surface with solvent by flow microcalorimetric measurement. 3; Netsuryo sokutei ni yoru sekitan hyomen to yozai tono sogo sayo no hyoka. 3

Energy Technology Data Exchange (ETDEWEB)

Wang, N.; Sasaki, M.; Yoshida, T. [Hokkaido National Industrial Research Institute, Sapporo (Japan); Kotanigawa, T. [Japan International Corporation Agency, Tokyo (Japan)

1996-10-28

An investigation was given on the relationship between methanol adsorbing behavior of reformed coal surface and oxygen containing functional groups in coal. Akabira bituminous coal was air-oxidized or Yallourn brown coal was decarbonated in oil as a reformation treatment. Both of the treated and untreated coals showed an adsorption heat curve of the Langmuir type. The Akabira coal had its oxygen content and the adsorption heat increased as a result of the air oxidizing reformation treatment. The Yallourn coal had its oxygen content and adsorption heat decreased as a result decarbonation reformation treatment. Oxygen containing functional groups act as strong adsorption sites for methanol, and the maximum adsorption amount depends on oxygen content in the coals. Since the coal surface is non-uniform in terms of energy, methanol is adsorbed first into sites with higher molar adsorption heat, and then into lower sites sequentially. Therefore, distribution of the molar adsorption heat can be derived from the relationship between adsorption amount and adsorption heat by changing methanol adsorption amount. The distribution of molar adsorption heat becomes broader when the oxygen content is high, and narrower when low. 2 refs., 2 figs.

Measurement of excited oxygen (O2:[sup 1][Delta]g) concentration by spontaneous emission. Hakko kyodo ni yoru reiki sanso ([sup 1][Delta]g) nodo no sokutei

Energy Technology Data Exchange (ETDEWEB)

Takahashi, S.; Hasegawa, Y.; Yamashita, I. (Mechanical Engineering Laboratory, Tsukuba (Japan))

1993-11-25

The concentration of excited oxygen ([sup 1][Delta]g), which was generated by microwave discharge in a pure oxygen flow, was measured from the intensity of spontaneous emission. The conversion factor to density was determined by spectroscopic analysis of the rotational structure and calibration of the emission intensity using a black-body furnace as light source. Consequently, a good agreement was found between the observed profiles and those calculated from spectroscopic data, and it was illustrated that the absolute concentration can be obtained by coupling band analysis and the calibration method. In addition, even when the concentration was low, it was shown that the excited oxygen concentration can be measured by considering the reflection at the cell wall. The excited oxygen concentration at the microwave discharge cavity was estimated to be around 1% under the pressure ranging from 0.5 torr to 2 torr. Furthermore, the comparison of the profiles calculated at different temperature provided that the band profile can be a good indicator of gas temperature when the signal-to-noise ratio is high. 9 refs., 10 figs., 2 tabs.

Measurement of radiation and temperature of cathod spots in excimer laser discharge; Ekishima reza reiki hodennai ni fukumareru inkyoku kiten no kogakuteki kansoku to ondo no sokutei

Energy Technology Data Exchange (ETDEWEB)

Minamitani, Y.; Nakatani, H. [Mitsubishi Electric Corp., Tokyo (Japan)

1996-08-20

Excimer laser is used in various fields such as luminous source for steppers, annealing treatment, ablation process, nuclear fusion and so on. In this paper, the radiation timing and gas temperature of cathode spots, streamer discharges and glow discharges in KrF excimer are measured by observing the radiating spectra thereof. The following conclusions are obtained from the results of the present study. Cathode spots begin to radiate at about 20ns after the discharge initiation, then the first and second radiation peaks are observed respectively when the discharge current reversing after passing zero point and the reserved discharged current approaching zero point. Streamer discharge makes flashover between electrodes at the second radiation peak of cathode spots, while the glow discharges almost disappear when streamer discharges occurring. The temperatures of cathode spots and glow discharge as 5500K and 2600K respectively are almost constant and independent upon the discharging voltage of laser. 14 refs., 12 figs.

Fitoplancton de embalses subtropicales del noroeste argentino.

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María Mónica Salusso

2014-12-01

Full Text Available Los embalses Cabra Corral y El Tunal de la cuenca del Juramento (ACJ, constituyen los reservorios de mayor relevancia de la provincia de Salta (Argentina. Se analizó la composición y estructura del fitoplancton en ambas presas en febrero, mayo y octubre en el período 1998-2011, utilizando técnicas normalizadas. El inventario algal comprendió un total de 334 spp., siendo los grupos más diversos: Chlorophyta (116, Bacillariophyta (112 y Cianophyta (64. La abundancia y diversidad de especies estuvieron asociadas con los cambios en las descargas de agua. Los valores más altos de riqueza y diversidad específicas, se alcanzaron durante los períodos de lluvias, siendo inversa la situación en estiaje, cuando incrementó la biomasa total; excepto durante los picos de floraciones de Dinophyta. La aparición de cianobacterias con potencial tóxico fue más significativa en el verano tardío y otoño. A pesar de que el número total de especies registrado es alto comparado con otros reservorios subropicales, sólo unas pocas pueden ser consideradas como comunes o frecuentes (Aulacoseira granulata, Cyclotella meneghiniana, Sphaerocystis schroeteri, Chroomonas minuta. La biomasa estuvo asociada a nivel local con las precipitaciones y el manejo del nivel hidrométrico y a nivel regional con el área superficial de los reservorios.

Condiciones meteorológicas a nivel global y local, cambio climático y "El Niño 1997-98"

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Ena Jaimes

2014-06-01

Full Text Available El evento "El Niño 1997-98" mostró una evolución rápida y de gran intensidad, resultando uno de los más fuertes ocurridos sobre el Pacífico Ecuatorial Central y Oriental en los últimos 150 años. En la costa peruana el calentamiento del agua de mar inducido por "El Niño 1997-98" empezó en marzo de 1997, con la incursión de aguas subtropicales y ecuatoriales. Las condiciones atmosféricas y oceánicas a macroescala se mantuvieron y alcanzaron su máxima intensidad en noviembre y diciembre de 1997. La Zona de Convergencia Intertropical estuvo desplazada al sur de su posición normal, en gran parte del año 1997. "El Niño" afectó el clima del país desde inicios del otoño de 1997. El invierno resultó uno de los más cálidos de la historia peruana, con anomalías que alcanzaron hasta los 6°C en la costa central. Asimismo, se registraron caídas de presión atmosférica en el Pacífico Oriental; lluvias que superaron significativamente sus promedios en la parte media y alta de la costa norte del Perú; y lluvias normales o ligeramente deficientes en la sierra, particularmente en el sur del país.

Photocatalyticpaving concrete

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Lyapidevskaya Ol'ga Borisovna

2014-02-01

Full Text Available Today bituminous concrete is a conventional paving material. Among its advantages one can name dustlessness and noiselessness, fine wear (up to 1 mm a year and fine maintainability. As the main disadvantages of this material one can name high slipperiness under humidification, low durability and weather resistance. Besides that, during placement of the bituminous concrete a lot of different air pollutants are emitted, which are harmful for environment and human’s health (they are listed in the paper according to the US Environmental Protection Agency materials. As an alternative, one can use cement-concrete pavement, which is in many ways more efficient than the bituminous concrete. It is proposed to enhance environmental performance of the cement-concrete pavement via usage of photocatalysis. The mechanism of different photocatalytic reactions is described in the paper, namely heterogeneous and homogeneous photocatalysis, photo-induces, photoactivated catalysis and catalytical photoreactions. It is pro-posed to use heterogeneous photocatalysis with titanium dioxide as a photocatalyst. The mechanism of photo oxidation of air contaminants, with the usage of titanium dioxide is2described. The paper sets problems, connected with the sensibilization of TiOto thevisible light (it is proposed to use titanium dioxide, doped with the atoms of certain elements to increase its sensibility to the visible light and with the development of a new photocatalytic paving concrete, which will meet the requirements, specified for paving in the climatic and traffic conditions of the Russian Federation.

Evaluación del potencial energético del oleaje en la costa sur del Golfo de México

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Alejandro González-Carrillo

2015-01-01

Full Text Available Hallar nuevas fuentes de energía es uno de los retos que trajo consigo el siglo XXI. En este tr abajo se hace un análisis sobre la energía de las olas, la cual presenta varia s ventajas significativas con r especto a otras fuentes de energ ías basadas en combustibles fós iles e, inclusive, otras fuentes renovables de energía. De entre estas ventajas de stacan el bajo impacto ambiental y su alta densidad energética, respectivamente. La energía de las olas del mar se considera ca da vez en más países como un recurso renovable importante y sob re todo prometedor. El objetivo de este trabajo es la evaluación del po tencial energético de las olas en la costa sur del Golfo de Méx ico; en él se observó el comportamiento del olea je y se obtuvo que la potenci a media anual disponible es de 55.91 W/m. Adicionalmente, se de staca el comportamiento estacional de las olas en la región; pues, en es te punto, la estación más energética es otoño y la menos energé tica es primavera, lo cual difiere de la tendencia mundial, en la que i nvierno y verano son la más y la menos energética, respectivamente.

Primary ciliary dyskinesia: a report from ATS 2001, May 18–23, San Francisco

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Noone Peadar G

2001-06-01

Full Text Available Abstract Primary ciliary dyskinesia (PCD is a genetic disorder of abnormal ciliary structure and function that leads to defective mucociliary clearance, resulting in oto-sino-pulmonary disease, and infertility. The disease is currently under intense investigation by a number of research groups worldwide. At the recent American Thoracic Society meeting in San Francisco in May 2001, two sessions focused on PCD; a symposium session on May 21 with several featured expert speakers was followed by a mini-symposium on Tuesday May 22, with one featured speaker and presentation of nine abstracts covering a range of research topics. Mattias Salathe (University of Miami, USA and Stephen Brody (Washington University, St Louis, USA chaired the symposium session. Presentations focused on the clinical spectrum of PCD, the genetics of PCD, a proteomics approach to detail the structure of cilia, the role of cilia in the embryology of situs laterality, and airway epithelial cell biology. The mini-symposium was chaired by Peadar Noone (University of North Carolina, USA and Malcolm King (University of Alberta, USA and included presentations on the use of PCD as a human disease model, accurate definition of the phenotype using clinical and cell biologic markers, and molecular studies. The latter reports ranged from isolation of a protein involved in ciliary structure and function to genetic studies using linkage analysis and the candidate gene approach. Clinicians and scientists alike displayed considerable interest at both sessions, and there were several lively question–answer sessions.

ZD0473 pharmacokinetics in Japanese patients: a Phase I dose-escalation study.

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Murakami, H; Tamura, T; Yamada, Y; Yamamoto, N; Ueda, Y; Shimoyama, T; Saijo, N

2002-12-01

ZD0473 is new platinum agent that was rationally designed to circumvent platinum resistance and reduce the potential for nephro-and neurotoxicity. This Phase I dose-escalating study investigated the pharmacokinetics, tolerability and efficacy of ZD0473 in Japanese patients with solid, refractory tumours. ZD0473 was administered as a 1-h intravenous infusion every 3 weeks. Nine patients received a total of 16 cycles of ZD0473 (median 1 cycle/patient), with 3 patients treated at each of 3 doses (60, 90, 120 mg/m2). The maximum plasma concentration (C(max)) and the area under the concentration-time curve to infinity (AUC(0-infinity)) increased with dose in a linear fashion for both total platinum and ZD0473 in plasma ultrafiltrate, suggesting that the pharmacokinetics of ZD0473 are linear. Haematological and non-haematological toxicities such as nausea and vomiting were mild (grade 1 or 2) and transient. No clinically significant nephro-, oto- or neurotoxicity was observed. Dose-limiting toxicity (DLT) was not observed and the maximum tolerated dose (MTD) was not identified. ZD0473 treatment showed evidence of disease stabilisation in 3 patients (33%). In conclusion, ZD0473 appears to have linear pharmacokinetics, and an acceptable tolerability profile at doses up to 120 mg/m2 in Japanese patients with refractory solid malignancies. Following evaluation of the data from all the Western trials, the ZD0473 development programme changed and this Japanese trial was stopped.

Mass media, espacio y tiempo en Todos Santos, Baja California Sur

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Rossana Almada

2001-01-01

Full Text Available El artículo que aquí se sintetiza es un primer acercamiento, desde la perspectiva de autores entre los que destaca Manuel Castells, a un proyecto mayor que pretende analizar e interpretar el proceso de transformaciones que ha venido sufriendo el pueblo de Todos Santos, Baja California Sur BCS, debido a la llegada de dos contingentes de inmigrantes: el primero, rocedente de Estados Unidos y Canadá, llegó a comprar las casas del centro del pueblo; algunos con la intención de quedarse e instalar negocios, principalmente de venta de Bienes Raíces, otros, para pasar allí la temporada otoño invierno; y el segundo, traído del interior del país, principalmente de Acayucan Veracruz y de Ocotepec Guerrero como jornaleros agrícolas por una compañía Sinaloense. Esta inmigración ha introducido a Todos Santos dentro de lo que Castells denomina como sociedad red, es decir, dentro de procesos sociales organizados, cada vez más, en torno a redes que constituyen las nuevas formas de organización social. En resumen, el presente trabajo aborda los efectos de la globalización en la transformación de un pueblo sudcaliforniano, a través de la llegada de los inmigrantes arriba mencionados y del uso de los medios de comunicación vía satélite.

Diferencias sexuales y etarias en la actividad diaria y estacional de una población de Liolaemus koslowskyi (Liolaemini

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Belver, Luciana C.

2010-09-01

Full Text Available Los patrones de actividad diario y estacional de una población de Liolaemus koslowskyi del NE de la provincia de La Rioja, Argentina, fueron estudiados entre octubre de 1998 y abril de 1999, mediante transectas realizadas entre las 08:00 y las 19:00 hs. La especie en estudio presenta una actividad unimodal en la primavera y otoño, y bimodal en el verano. Se encontraron diferencias significativas entre juveniles y adultos en febrero y abril y no se registraron diferencias en el patrón de actividad entre machos y hembras. Los machos estuvieron activos en un rango mayor de temperatura que las hembras y juveniles, lo que se podría sugerir que estaría relacionado con la defensa territorial por parte de los machos. The pattern of activity of Liolaemus koslowskyi populations from NE of the La Rioja Province, were studied between October 1998 and April 1999 by performing transects between 08:00 and 19:00 hs. The species present unimodal pattern of activity during both autumn, and spring; and bimodal pattern during summer. In terms of the number of active individuals, there was a significant difference between adults and juveniles in February and April and not there was significant difference between males and females. The males were active at higher temperature ranges than females and juveniles; which could suggest that would be related to territorial defense by males.

Community-based management of multiple drug resistant tuberculosis in a tertiary hospital in Tanzania: a best practice implementation project.

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Jelly, Isaya; Peters, Micah D J

2017-12-01

The World Health Organization (WHO) has prioritized collaboration with communities in its 2016 "End TB" implementation strategy. Acknowledging the difficulties that some communities face in gaining access to health facilities due to barriers such as stigma, discrimination, healthcare expenditure, transport and income loss, partnering with communities in the roll-out of community-based TB management activities is vital. The aim of this project was to make a contribution to promoting evidence-based practice with regards to the community-based management of multidrug-resistant tuberculosis (MDR-TB) at Kibong'oto National Infectious Disease Hospital, Tanzania, and thereby supporting improvements in patient outcomes and resource utilization. The project utilized the Joanna Briggs Institute Practical Application of Clinical Evidence System (JBI PACES) program to facilitate the collection of pre- and post-audit data. The Getting Research into Practice (GRiP) module was also used to analyze the potential barriers and for designing the final action plan. This project was conducted in three phases over a three-month period at the MDR-TB unit in a referral hospital in Northern Tanzania. The project showed that there were significant improvements in compliance rates in staff education and documentation of patients' suitability and preferences in receiving community-based care for MDR-TB. The compliance rate of criterion 2, which was already 100% at baseline, was slightly lower at follow-up. The project achieved significant improvements in the delivery of evidence-based practice with regards to community-based management of MDR-TB.

El clima de las ciudades: isla de calor de Salamanca

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Mª Salud Alonso García

2004-12-01

Full Text Available En este trabajo se ha determinado la existencia de la isla de calor urbana (ICU, en una ciudad de tamaño medio, con un clima extremado y focos industriales de poca actividad. Con lo que se puede comprobar cómo afecta el calentamiento urbano a ciudades de estas características, pudiendo influir en los seres vivos de la zona. La existencia del fenómeno isla de calor, y su evolución en el tiempo, se han observado comparando los datos de temperatura registrados en una estación meteorológica situada en la ciudad, con los de otra estación fuera del radio de acción de la urbe, durante el período 1996-1998. Se han detectado dos fenómenos: la isla de calor nocturna, cuando la diferencia térmica entre la ciudad y la zona rural es positiva, que presenta sus valores más altos en otoño, y la isla de calor diurna, cuando la diferencia es negativa, que presenta sus valores más altos en primavera. Realizando un estudio estadístico de la evolución anual de la isla de calor nocturna en Salamanca, podemos definir isla de calor débil si su intensidad es inferior a 2 oC, moderada si se encuentra entre 2 oC y 4 oC e intensa si supera los 4 oC.

FERTILIZACIÓN ORGÁNICA: UNA ALTERNATIVA PARA LA PRODUCCIÓN DE CHILE PIQUÍN BAJO CONDICIONES PROTEGIDAS

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César Márquez-Quiroz

2013-01-01

Full Text Available Se realizó un experimento para evaluar el té de vermicompost (TVC como fertilizante orgánico en combinación con mezclas de arena, compost (C y vermicompost (VC en la producción de chile piquín cultivado bajo invernadero. Durante el ciclo otoño-invierno 2011-2012, plantas de chile piquín del ecotipo chilpaya fueron sometidas a cinco tratamientos de fertilización: arena + solución nutritiva inorgánica (testigo, F1; arena + TVC (F2; arena:C (relación 1:1; v/v + TVC (F3; arena:VC (relación 1:1; v/v + TVC (F4, y arena:C:VC (relación 2:1:1; v/v + TVC (F5. Las plantas cultivadas con el tratamiento testigo (F1 presentaron mayor rendimiento, superando en 26.10, 9.00, 29.47 y 29.05 % al rendimiento obtenido en las plantas cultivadas con los tratamientos F2, F3, F4 y F5, respectivamente. Entre los tratamientos orgánicos, el tratamiento F3 produjo mayor rendimiento, seguido del tratamiento F2. El estudio sugiere que el TVC en combinación con la mezcla de arena: C o sólo con arena, podría ser una alternativa para la producción orgánica de chile piquín bajo invernadero.

Energy analysis of nuclear power plants and their fuel cycle

International Nuclear Information System (INIS)

Held, C.; Moraw, G.; Schneeberger, M.; Szeless, A.

1977-01-01

Energy analysis has become an increasingly feasible and practical additional method for evaluating the engineering, economic and environmental aspects of power producing systems. Energy analysis compares total direct and indirect energy investment into construction and operation of power plants with their lifetime energy output. Statically we have applied this method to nuclear power producing sytems and their fuel cycles. Results were adapted to countries with various levels of industrialization and resources. With dynamic energy analysis different scenarios have been investigated. For comparison purposes fossil fueled and solar power plants have also been analyzed. By static evaluation it has been shown that for all types of power plants the energy investment for construction is shortly after plant startup being repaid by energy output. Static analyses of nuclear and fossil fuels have indicated values of fuel concentrations below which more energy is required for their utilization than can be obtained from the plants they fuel. In a further step these global results were specifically modified to the economic situations of countries with various levels of industrialization. Also the influence of energy imports upon energy analysis has been discussed. By dynamic energy analyses the cumulative energy requirements for specific power plant construction programs have been compared with their total energy output. Investigations of this sort are extremely valuable not only for economic reasons but especially for their usefulness in showing the advantages and disadvantages of a specific power program with respect to its alternatives. Naturally the impact of these investigations on the fuel requirements is of importance especially because of the today so often cited ''valuable cumulated fossil fuel savings''

RASSF1A promoter is highly methylated in primitive neuroectodermal tumors of the central nervous system.

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Inda, María-del-Mar; Castresana, Javier S

2007-08-01

Although cancer is rare in children, primary brain tumors constitute the most frequent location of solid tumors in childhood. Primitive neuroectodermal tumors (PNET) of the central nervous system can be divided into infratentorial PNET or medulloblastoma (MB), and supratentorial (sPNET) tumors. Although MB and sPNET are histologically similar, clinical evolution differs, sPNET being more aggressive than MB. Some studies have suggested that MB and sPNET present different molecular genetic aberrations. The RASSF1A (Ras Association Domain Family Protein 1) gene, located at 3p21.3, is highly methylated in multiple primary tumor samples, including neuroblastoma. In order to define whether there are genetic differences in the methylation frequency of RASSF1A between MB and sPNET, we analyzed 32 PNET paraffin-embedded samples (23 MB and 9 sPNET) by methylation specific polymerase chain reaction (MSP). We also analyzed RASSF1A expression by reverse transcription polymerase chain reaction in five PNET cell lines. All PNET cell lines showed lack of RASSF1A expression that was correlated with RASSF1A promoter hypermethylation. RASSF1A methylation was detected in 19 of 21 MB cases (91%) and in five of six sPNET samples (83%). Although the methylation frequency found in MB was slightly higher than in sPNET, no statistical differences were found for the RASSF1A hypermethylation frequency (P > 0.05) presented at MB versus sPNET. Therefore, the inactivation of the RASSF1A gene seems to be an important step in the tumorigenesis of PNET of the central nervous sytem. More studies should be performed in order to determine genetic differences between MB and sPNET.

U-Pb Data On Apatites With Common Lead Correction : Exemples From The Scottish Caledonides

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Jewison, E.; Deloule, E.; Villeneuve, J.; Bellahsen, N.; Labrousse, L.; Rosenberg, C.; Pik, R.; Chew, D.

2017-12-01

Apatite is a widely used mineral in low-temperature thermochronology (U-Th/He and AFT). The use of apatite in U-Pb geochronology has a great potential, given its closure temperature around 450°C, for orogen thermostructural evolution studies. However, since apatite can accumulate significant amount of initial Pb in its structure, its use can be hindered by the lack of 204 Pb estimations. To work around this, two options are commonly used : either use a ploting sytem that does not require corrected ratios, or use a proxy to estimate 204Pb and use it to correct the ratios. In this study we use a SIMS to mesure 204Pb in order to compare Tera-Wasserburg diagram and corrected ages to examine the cooling pattern in the northern Highlands of Scotland. The Highlands is an extensively studied caledonian collision wedge which results from the closure of the Iapétus Ocean during the Orodivician-Silurian. Two orogenic events are related to this closing, the grampian event (480-460Ma) and the scandian event (435-415 Ma) that culminated in the stacking of major ductile thrusts. The thermal history of thoses nappes are hence complex and the cooling pattern poorly constrained. Corrected apatite U-Pb ages provide new constrains on ductile wedge building and improve our understanding of mid to lower-crustal deformation and orogenic exhumation. Thoses corrected ages yield equivalent errors and mean ages from the classic method. Those data suggest a global cooling younger than previously thought and a sequence departing from a simple forward sequence. We thus present a refined thermal evolution and conceptualize a model of ductile wedge evolution.

Development of rubidium and niobium containing plastic foams. Final report

International Nuclear Information System (INIS)

Botham, R.A.; McClung, C.E.; Schwendeman, J.I.

1978-01-01

Rubidium fluoride and niobium metal-containing foam samples (rods and sheets) were prepared using two foam sytems: (1) hydrophilic polyurethanes prepared from W.R. Grace Co.'s Hypol prepolymers and (2) polyimides prepared from Monsanto Company's Skybond polyimide resin. The first system was used only for preparation of rubidium fluoride-containing foams while the second was used for both rubidium fluoride and niobium-containing foams. The niobium metal could readily be incorporated into the polyimide foam during molding, to produce foam sheets of the required dimensions and density. The rubidium fluoride-containing polyimide foams were preferably prepared by first rendering the molded polyimide foam hydrophilic with a postcuring treatment, then absorbing the rubidium fluoride from water solution. Similarly, rubidium fluoride was absorbed into the hydrophilic polyurethanes from water solution. Since the high reactive rubidium metal could not be employed, rubidium fluoride, which is very hygroscopic, was used instead, primarily because of its high rubidium content (approximately 82 weight percent). This was important in view of the low total densities and the high weight percentage rubidium required in the foam samples. In addition, at the later request of LLL, a block of rigid Hypol hydrophilic polyurethane foam (with a density of approximately 0.04 g/cm 3 and cell sizes = or <0.2 mm) was prepared without any metal or metal compounds in it. Two shipments of foam samples, which met or closely approximated the project specifications, were submitted to LLL during the course of this project. Information on these samples is contained in Table 1. A complete description of their preparation is given in the Experimental Results and Discussion Section

Incidence of Osteoporosis in Patients Admitted to our Physical Medicine and Rehabilitation Outpatient Clinics

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Berat Meryem Alkan

2011-04-01

Full Text Available Aim: Osteoporosis is a skeletal disease characterized with decreased bone mass and microarchtitectural deterioration of bone tissue which increases bone fragility and fracture risk. Osteoporosis and osteoporotic fractures constitute an important health problem in general population. This study aimed to determine the incidence of osteoporosis, chronic diseases accompanying osteoporosis and incidence of falls in male and female patients admitted to our out patient clinics retrospectively. Material and Methods: Patient records of the 11624 patients admitted to Ankara Atatürk Education and Research Hospital Physical Medicine and Rehabilitation Outpatient clinics between January 2010 and July 2010 were retrospectively reviewed and 644 patients diagnosed as osteoporosis according to femoral neck and/or lumbar dual energy x ray absoptiometry measurements were included in the study. Ages of the patients, sexes, chronic ilnesses, musculoskeletal sytem complaints and fall histories were also recorded. Results: The incidence of osteoporosis was found to be 7.61% in female patients and it was determined that incidence was 5-fold increased in women than in men. Besides, chronic ilnesses and fall history were accompanying in higher ratios in osteoporotic patients. Conclusion: Heart diseases, hypertension, diabetes, neurological diseases leading to impairment in balance and musculoskelatal system complaints were quite frequent in patients with osteoporosis and these diseases should be taken seriously since they increase the risk of falling. It is important to avoid using drugs which lead to balance impairment, to use walk aids like canes or walkers, to perform exercises including balance and coordination training and endurance exercises in order to prevent falls. (Turkish Journal of Osteoporosis 2011;17:10-3

Analysis of the pressure response of high angle multiple (HAM) fractures intersecting a welbore; Kokeisha multi fracture (HAM) kosei ni okeru atsuryoku oto kaiseki ni tsuite

Energy Technology Data Exchange (ETDEWEB)

Ujo, S; Osato, K [Geothermal Energy Research and Development Co. Ltd., Tokyo (Japan); Arihara, N [Waseda University, Tokyo (Japan); Schroeder, R

1996-05-01

This paper reports pressure response analysis on wells piercing a high angle multi (HAM) fracture model. In this model which is defined on a three-dimensional space, a plurality of slanted fractures intersect with wells at high angles (however, intersection of fractures with each other is not considered). With respect to the pressure response analysis method using this model, the paper presents a basic differential equation on pressure drawdown and boundary conditions in the wells taking flows in the fractures pseudo-linear, as well as external boundary conditions in calculation regions (a reservoir spreads to an infinite distance, and its top and bottom are closed by non-water permeating beds). The paper also indicates that results of calculating a single vertical fracture model and a slanted fracture model by using a numerical computation program (MULFRAC) based on the above equations agree well respectively with the existing calculation results (calculations performed by Erlougher and Cinco et al). 5 refs., 6 figs.

Estudio de la prevalencia de la infección por Trypanosoma cruzi en zarigüeyas (Didelphis albiventris en Santiago del Estero, Argentina Study of the prevalence of infection by Trypanosoma cruzi in opossums (Didelphis albiventris in Santiago del Estero, Argentina

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Nicolás J. Schweigmann

1999-12-01

Full Text Available Entre los principales reservorios silvestres de Trypanosoma cruzi se encuentran las zarigüeyas del género Didelphis, ampliamente distribuidas por el continente americano. En Amamá y Trinidad, Provincia de Santiago del Estero, Argentina, Didelphis albiventris es el marsupial más frecuente. Su población se renueva cada año y normalmente hay dos períodos reproductivos: uno a principios de la primavera y otro a principios del verano. Estas dos camadas son destetadas y abandonan la bolsa marsupial para incorporarse a la población, la primera (G1 a principios del verano y la segunda (G2 a principios del otoño. Entre 1988 y 1991 se estudiaron 409 individuos distintos de D. albiventris y los xenodiagnósticos revelaron que 35% de ellos estaban infectados por T. cruzi. Se observaron ciclos de renovación anual de la infección con prevalencias que oscilaron entre 22 y 43%. La adquisición del parásito ocurría a lo largo de todo el año, desde el verano hasta la primavera. La prevalencia de la infección aumentó con la edad. Los individuos G1 tuvieron tendencia a presentar mayores prevalencias que los G2, probablemente debido a un mayor tiempo de exposición a la transmisión. En las dos primeras categorías de edad, los individuos G2 mostraron mayores prevalencias que los G1, lo cual indica un aumento significativo de la intensidad de la transmisión durante el otoño. Las zarigüeyas deberían considerarse como una fuente potencial de ingreso de T. cruzi al ciclo doméstico.The opossum of the genus Didelphis is one of the principal wild reservoirs of Trypanosoma cruzi and is widely distributed in the Western Hemisphere. Didelphis albiventris is the most common marsupial in Amamá and Trinidad, two communities in the province of Santiago del Estero, Argentina. The D. albiventris population is replaced every year, and the opossum normally has two reproductive periods, one at the beginning of the spring and another at the beginning of the

Seasonal fluctuations in prevalence of dog intestinal parasites in public squares of Mar del Plata city, Argentina and its risk for humans Estacionalidad en la prevalencia de parásitos intestinales caninos en plazas públicas de Mar del Plata, Argentina, y su riesgo para la salud humana

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V. Andresiuk

2007-12-01

obtenidos en la biblioteca del Servicio Meteorológico Nacional. La prevalencia total de parásitos fue considerablemente más alta en invierno que en verano. Ancylostoma spp. fue la especie prevalente en el período otoño-verano. La incidencia de Toxocara canis fue más alta en invierno que en el resto de las estaciones, y la de Trichuris vulpis fue alta en invierno, primavera y verano. Este trabajo muestra alta prevalencia de parásitos totales a lo largo de todo el año en las plazas públicas de Mar del Plata. Para Ancylostoma spp. verano y otoño podrían ser las estaciones con riesgo sanitario más alto para la gente. Por otra parte, T. canis podría presentar mayor riesgo para la gente en invierno y T. vulpis sería transmitido durante todo el año. La variación estacional en la prevalencia de los distintos parásitos caninos, con al menos una especie con riesgo sanitario, hace que la exposición para la gente que visita las plazas sea continua e involucre no sólo a la gente que vive en Mar del Plata sino también turistas de otras regiones de Argentina y el mundo.

The testicular cycle of captive Tupinambis merianae lizards in a temperate environment

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Noriega, Teresa

2002-08-01

Full Text Available Las poblaciones de Tupinambis merianae, que habitan las regiones templadas y subtropicales, muestran un comportamiento marcadamente estacional con períodos equivalentes de actividad e hibernación. Correspondientemente, la reproducción en estos lagartos es un fenómeno cíclico caracterizado por una corta actividad sexual primaveral. Este trabajo examina los cambios testiculares que ocurren durante el ciclo reproductivo de especímenes de Tupinambis merianae criados en un ambiente templado. Evalúa la participación de la porción renal sexual como glándula sexual secundaria. En otoño e invierno, el testículo exhibe una gametogénesis discontinua. La espermatocitogénesis ocurre en otoño dando lugar a una espermiogénesis precoz abortiva, que concluye en los meses fríos. En la primavera temprana, la gónada reinicia su actividad espermiogénica alcanzando prontamente un pico de máximo crecimiento y abundante producción de esperma. El clímax testicular ocurre brevemente después de la hibernación y coincide con un período de cópulas de alrededor de un mes (octubre. En ese período, el epidídimo considerablemente dilatado se encuentra revestido por un epitelio cilíndrico y contiene grandes masas de esperma. Simultáneamente, la porción sexual de los túbulos renales exhibe células columnares hipertróficas cargadas de grandes gránulos citoplasmáticos PAS (+. Pronto la actividad reproductiva cesa y da lugar a una fase de involución gonadal, que se extiende a través del resto de la primavera y verano (noviembre-febrero, indicando la existencia de un único evento reproductivo al ario. Las observaciones se discuten en relación con los factores climáticos y las características biológicas del grupo. Tupinambis merianae populations living in temperate and subtropical regions show a distinctly seasonal behaviour, with equivalent periods of activity and hibernation. Correspondingly, reproduction in these lizards is a cyclic

1998 Annual Study Report. Standardization of methods for measuring fuel economy of hybrid electric vehicles; 1998 nendo seika hokokusho. Hybrid denki jidosha no nenpi sokutei hoho no hyojunka

Energy Technology Data Exchange (ETDEWEB)

NONE

1999-03-01

The hybrid electric vehicle (HEV) has been attracting attention as a clean energy vehicle, because it will potentially show higher fuel economy and release smaller quantities of exhaust emissions than the conventional internal combustion engine, and also will be potentially advantageous over the electric vehicle in that it needs no charging infrastructures and less cost. However, there are many types of hybrid vehicle systems, and, for them to be commercialized on a large scale, it is urgently necessary to establish the fuel economy measurement method. The 1998 R and D efforts were directed to analysis of the effects of the hybrid-characteristic factors (SOC of the propulsion battery and regenerative braking) on fuel economy and exhaust emissions. As a result, it is found that changed SOC before and after the tests must be corrected to determine fuel economy and that it is possible. The method for measuring the effects of regenerative braking should be further developed, because the data collected while the vehicle is running on road and on a two-wheel chassis dynamometer are not clearly distinguished from each other. The exhaust emissions are also sensitive to the changed SOC, correction for which, however, is not as easy as that for fuel economy. (NEDO)

Fault detection by Turam TEM survey. Numerical model studies and a case history; TEM ho Turam sokutei haichi ni yoru danso kenshutsu no kokoromi. Model keisan to jisshirei

Energy Technology Data Exchange (ETDEWEB)

Wada, K; Tsutsui, T [Mitsui Mineral Development Engineering Co. Ltd., Tokyo (Japan); Ito, T [Chiba Univ., Chiba (Japan). Faculty of Science; Takeuchi, A [Toyama University, Toyama (Japan). Faculty of Science; He, P [Power Reactor and Nuclear fuel Development Corp., Tokyo (Japan)

1997-05-27

With an objective to detect faults estimated to exist along the Shigesumi valley in the Kamioka mine, discussions were given by using electromagnetic survey, which uses the Turam measurement arrangement based on the TEM method, and three-dimensional model calculations. The Turam measurement arrangement, which installs transmission loop fixedly, is used to identify nature and distribution of electrically conductive objects upon noticing abnormal portions in magnetic fields in the measurement data. In the model calculation, the plate model calculation method and the FDTD method were used, and so was the calculation code TEM3DL. The result revealed that strong topographical influence is seen from steep V-shaped valley existing along the traverse line in the measurement data, but an abnormal resistivity band accompanying remarkable distortion in the curve was detected. According to the result of the model calculation, anomaly detection may be found difficult in locations where a low resistivity band has not grown enough locally. It was possible from these facts to assume a model in which the low resistivity band exists directly below the Shigesumi valley, suggesting existence of faults. 2 refs., 8 figs.

Report on achievements in fiscal 1975 in Sunshine Project. Studies on a technology to measure inside of wells; 1975 nendo koseinai sokutei gijutsu ni kansuru kenkyu seika hokokusho

Energy Technology Data Exchange (ETDEWEB)

NONE

1976-03-01

In order to identify the actual status of geothermal reservoirs, development is made on a technology to detect cracks in a geothermal reservoir. This fiscal year has launched development of a PS sonic logging device of well wall compression type, which is considered most effective in crack detection. This device has a number of new development elements such as a mechanism to have a transmitter and a receiver compressed on a geologic stratum to send sonic energy directly into the stratum, simultaneous use of S-wave having excellent characteristics in evaluating crack faces quantitatively and calculating porosities, and a cooling mechanism for electronics installed in the wells. Combining this with a micro seismogram log scheduled to be fabricated in fiscal 1976 will form the mainstream of crack face detection. A continual flow meter measures behavior of steam and hot water to identify flow-out or flow-in patterns and depths of fluid in wells under flowing condition. Adding this meter to temperature and pressure elements scheduled to be developed in fiscal 1976 will provide data to give an important guideline in underground heat production. This meter was attempted with enhancement in heat and pressure resistant characteristics and stabilization of operation for design and fabrication, which were carried out using the spinner flow meter as the base. (NEDO)

Propuesta de un plan de mercadeo para el club especializado en adulto mayor “Otoño Índigo” en San Ramón, Alajuela, Costa Rica

OpenAIRE

Esquivel-González, Carlos; Barquero-Vega, José Pablo; Alfaro-Rojas, Karen; Salazar-Cartín, Kemberly

2017-01-01

Proyecto de Graduación (Maestría en Administración de Empresas) Instituto Tecnológico de Costa Rica. Escuela de Administración de Empresas, 2017. The business of specialized products and services for the senior adult population is only beginning to become relevant in Costa Rica. Given the identification of the need in the market, the scope of the project was defined, which constitutes a proposal of a marketing plan based on the concept of "Retailing mix" for a club specializing in...

Exciting test of a floating type cable stayed bridge and its response observation under the typhoon; Furotiingu keishiki shachokyo (Utagenkabashi) no kishinki shiken to taifuji oto kansoku

Energy Technology Data Exchange (ETDEWEB)

Uno, K. [Kyushu Kyoritsu Univ., Kitakyushu (Japan). Faculty of Engineering; Aso, T. [Yamaguchi Univ., Ube (Japan). Faculty of Engineering; Kitagawa, S. [Kyushu International Univ., Kitakyushu (Japan). Faculty of Economy; Kabashima, S.

1995-09-20

Recently, in case of the planning and designing of bridges, of course its practicality and execution stability are considered, but consideration for landscape also is a large problem. In particular, the selection of the bridge type is very important in order to protect the beautiful natural landscape. The cable stayed bridge has become to be executed often, owing to its elegant style, however, it becomes important theme clarify the antiseismic and wind stability because of its complicated structure system and very slender girder. In this paper, the results of the dynamic characteristics of a floating type cable stayed bridge (length 292.1 m and width 14.9 m) and the observation of its dynamic behavior under the typhoon are reported. Microtremor measurement was performed to determine the dynamic characteristics of the bridge under construction. After the construction of the bridge, the excitation test was carried out in order to confirm its natural frequencies, vibration modes and damping constants. From the results of the observation of the dynamic behavior of the girder and cables under the typhoon, the wind stability of this bridge was confirmed. 10 refs., 13 figs., 9 tabs.

Deletion of the complement C5a receptor alleviates the severity of acute pneumococcal otitis media following influenza A virus infection in mice.

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Hua Hua Tong

Full Text Available There is considerable evidence that influenza A virus (IAV promotes adherence, colonization, and superinfection by S. pneumoniae (Spn and contributes to the pathogenesis of otitis media (OM. The complement system is a critical innate immune defense against both pathogens. To assess the role of the complement system in the host defense and the pathogenesis of acute pneumococcal OM following IAV infection, we employed a well-established transtympanically-induced mouse model of acute pneumococcal OM. We found that antecedent IAV infection enhanced the severity of acute pneumococcal OM. Mice deficient in complement C1qa (C1qa-/- or factor B (Bf -/- exhibited delayed viral and bacterial clearance from the middle ear and developed significant mucosal damage in the eustachian tube and middle ear. This indicates that both the classical and alternative complement pathways are critical for the oto-immune defense against acute pneumococcal OM following influenza infection. We also found that Spn increased complement activation following IAV infection. This was characterized by sustained increased levels of anaphylatoxins C3a and C5a in serum and middle ear lavage samples. In contrast, mice deficient in the complement C5a receptor (C5aR demonstrated enhanced bacterial clearance and reduced severity of OM. Our data support the concept that C5a-C5aR interactions play a significant role in the pathogenesis of acute pneumococcal OM following IAV infection. It is possible that targeting the C5a-C5aR axis might prove useful in attenuating acute pneumococcal OM in patients with influenza infection.

The second branchial cleft fistula.

Science.gov (United States)

Maddalozzo, John; Rastatter, Jeffrey C; Dreyfuss, Heath F; Jaffar, Reema; Bhushan, Bharat

2012-07-01

To review the surgical anatomy and histopathology of second branchial cleft fistulae. Retrospective study of patients treated for second branchial cleft fistulae at a tertiary care pediatric hospital. The senior author noted anatomic and histologic features of second branchial cleft fistulae, not previously described. Tertiary care children's hospital. Retrospective examination of 28 patients was conducted who were operated upon for second branchial cleft fistula. Data collected included age at surgery, initial presentation, imaging characteristics prior to surgery, laterality of the fistula tract, pathology results and follow-up data. Twenty-eight patients met the criteria for inclusion. Three patients (11%) had bilateral fistulae. 11 (39%) were male and 17 (61%) were female. 23 (74.2%) tracts were lined with ciliated columnar epithelium, 3 (9.7%) had cuboidal epithelium, and 5 (16.7%) had squamous epithelium. Nineteen (61.3%) tracts contained salivary tissue. Of the unilateral fistula tracts, 25 (100%) were on the right side. Of the 3 patients with bilateral lesions, 2 (66%) had associated branchio-oto-renal syndrome (BORS). Second branchial cleft fistulae are rare. They are usually right-sided. If bilateral fistulae are present, one should consider an underlying genetic disorder. The histology of the fistulae mostly demonstrates ciliated columnar epithelium with the majority of specimens showing salivary tissue. There is a clear association with the internal jugular vein (IJV). Dissection should continue until superior to the hyoid bone, ensuring near complete surgical dissection and less risk of recurrence. Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.

Evaluación del consumo de semillas de malezas por Notiobia (Anisotarsus cupripennis (Germ. (Coleoptera: Carabidae

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LIETTI MARCELA

2000-01-01

Full Text Available En este trabajo se estimó la preferencia alimentaria de Notiobia cupripennis por semillas de ocho especies de malezas primavero-estivales (Pr-Es y de seis especies otoño-invernales (Ot-In más comunes en los agroecosistemas del Sur de la provincia de Santa Fe, Argentina. Las semillas de las especies de cada grupo fueron ofrecidas en conjunto y de a pares a adultos confinados individualmente. La relación (semillas dañadas/semillas disponibles x 100 de cada especie fue considerada como índice de preferencia alimentaria. Los resultados fueron analizados mediante análisis de la variancia y test de rangos múltiples de Duncan y mediante un test de diferencia de medias, previa transformación arcoseno de los datos. Las semillas de las especies Ot-In fueron más dañadas (27,65% que las Pr-Es (10,40%. Se encontraron diferencias altamente significativas en el porcentaje de semillas dañadas entre las diferentes especies; las dicotiledóneas fueron más preferidas que las gramíneas. El orden de preferencia alimentaria se mantuvo cuando los insectos fueron obligados a elegir entre semillas de dos especies de malezas. La preferencia alimentaria se atribuiría a diferencias en el tamaño, la consistencia del tegumento y la composición química de las semillas en relación con la habilidad de manipulación de las mismas y los requerimientos nutricionales del insecto.

Los paisajes de Carlos V : primer viaje a España (1517-1518

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Pilar Bosqued Lacambra

2011-01-01

Full Text Available Laurent Vital escribió la Relación del primer viaje de Carlos V a España, que inició en 1517 cuando salió de Gante para embarcar en Flesinga y emprender por mar la travesía hasta España, donde llegó a Asturias. Durante el verano de aquel año Carlos V disfrutó del paisaje de su tierra natal y recorrió durante el primer mes del otoño una parte de la cornisa cantábrica, desde Villaviciosa hasta San Vicente de la Barquera. Siguiendo el relato, se analizan y describen los paisajes que recorrió y las situaciones y sensaciones que vivió a lo largo del mencionado trayecto, tanto en sus territorios flamencos como en tierras españolas, a las que vino para ser proclamado como rey.Laurent Vital wrote the report of the first journey of Carlos V to Spain, that started in 1517 when he departed from Ghent to embark in Vlissingen and undertake through sea the crossing until Spain, arriving in Asturias. During that year’s summer, Carlos V enjoyed the landscape of his native land and roamed part of the Cantabric coast during the first month of that year’s Autumn , from Villaviciosa to San Vicente de la Barquera. In the story, the landscapes that he travelled through were analysed and described as well as the situations and feelings that he lived during the mentioned travel through his Flemish territories and Spanish grounds to which he became appointed as king.

Estudios sobre Plantas Andinas, X

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Cuatrecasas José

1967-09-01

Full Text Available Durante la preparación del género Baccharis para Prima Flora Colombiana tuve que estudiar gran número de especies andinas, tropicales y extratropicales de fuera de Colombia; el objeto principal de tales estudios fue el de tipificar las especies íntimamente relacionadas con las colombianas y establecer su diferenciación taxonómica. La consulta de los tipos específicos y la identificación de gran número de colecciones procedentes de las regiones andinas hasta el sur del continente americano permitió precisar el concepto de bastantes especies y de su área geográfica, al mismo tiempo que el establecimiento de numerosas sinonimias.  La mayor parte de las novedades taxonómicas y de los comentarios derivados de tal estudio va incluída en el texto de las Astereae de Colombia a publicar en breve. El objeto de este artículo es dar a conocer otra parte de las novedades relativas a especies andinas de los países vecinos y describir varias entidades taxonómicas deficientemente conocidas, incorporando a su conocimiento los resultados de muchas disecciones llevadas a cabo en los mencionados estudios.  El trabajo basico para estas notas fue hecho en la Smithsonian Institution; se consultaron también las colecciones de los herbarios europeos de Londres, París, Florencia, Ginebra y Madrid en viaje hecho en otoño de 1963. National Science Foundation de Washington D.C. subvencionó los trabajos.

“El nou mil.leni i la vella calavera” (El nuevo milenio y la vieja calavera : exposición de Josep Guinovart en el Espai Guinovart de Agramunt (Lleida

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María Rosa Puig

2000-01-01

Full Text Available Josep Guinovart es un pintor muy conocido, nacido en Barcelona en 1927. Se refugió en Agramunt, un pequeño pueblo en el campo, durante la Guerra Civil Española. Desde entonces, siempre se ha sentido vinculado a ese pueblo, donde tiene una galería de exposiciones llamada Espai Guinovart. Es aquí donde se ha exhibido la última producción de este artista, entre el otoño de 1999 y la primavera de 2000. Se trata de obras manifiesto, testimonio y protesta contra el vertedero de residuos tóxicos que se quiere instalar, contra la opinión de la gente, en un lugar conocido como el Bosc del Sisear, cerca de Agramunt, donde Guinovart vivió una parte muy importante de su infancia. Josep Guinovart is a well-known painter, born in Barcelona in 1927.He took refuge in Agramunt, a little town in the country, during he Civil Spanish War. Since then, he has always been linked to this town, and he owns there an exhibition gallery called Espai Guinovart. The last production of this artist has been exhibited there, between the fall of 1999 and the spring of 2000. They are manifestó, testimony and protest paintings against the dump toxic waste, which they want to build, against the town people opinión, in a place known as the Sisear Forest, near Agramunt. It is there, in this place, where Guinovart lived a very important part of his childhood.

Crecimiento en longitud foliar y dinámica de población de tallos de cinco asociaciones de gramineas y leguminosa bajo pastoreo

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Rigoberto Castro Rivera

2013-01-01

Full Text Available El objetivo del estudio fue determinar la elongación, crecimiento, senescencia, peso y dinámica de tallos de cinco asociaciones conformadas por dos gramíneas y una leguminosa sembradas en diferentes proporciones. Se evaluaron cinco tratamientos: 4:3:3; 4:6:0; 4:0:6; 4:4:2 y 4:2:4 de trébol blanco-ovillo-ballico perenne, los cuales se distribuyeron en 20 unidades experimentales de 104 m2 , en un diseño en bloques completos al azar. La mayor elongación y crecimiento neto de la hoja de las especies evaluadas fue en verano, con 7.1 y 6.53 cm tallo -1 d -1 , para el pasto ovillo, y 7 y 6.7 cm tallo -1 d -1 , para ballico perenne; en trébol blanco no existió diferencia en el recambio de tejido foliar y del peciolo en verano y primavera ( P>0.05. El mayor peso de tallos de ballico perenne y ovillo se registró en verano (0.38g -1 tallo - 1 y las mayores densidades en la época de invierno (9,961 y 10,423 tallos m-2 , respectivamente. El recambio de tejido de las especies evaluadas presentó marcada estacionalidad, siendo más dinámico en verano que en otoño. La asociación de tres especies permitió una mayor dinámica en comparación con la asociación de dos especies.

Monitoring cisplatin-induced ototoxicity.

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Ana SÁNCHEZ-MARTÍNEZ

2018-03-01

Full Text Available Introduction and objective: The ototoxic damage goes unnoticed to disabling levels, being justified to apply control for its early detection procedures, make it possible to a therapeutic change and if necessary, a speech and auditory rehabilitation. The objective of this study will consist to present Protocol we did at the Hospital Clínico Universitario de Valladolid for the follow-up of the patients treated with cisplatin. Method: Ototoxicity monitoring means serially collect hearing thresholds. It is identified on a visit if hearing has worsened in some ear. The comparison allows to detect the change and indicate if it is significant or not in relation to some criteria. We will also evaluate the occurrence of vestibular damage. As auditory monitoring procedures, we will use high frequency audiometry and acoustic oto-emissions. Results: After giving informed consent and a brief medical history we started with baseline assessment of hearing, prior to treatment, continuing with periodic reviews before each cycle. If any change is detected it is reported to the physician and the patient. To grade the ototoxicity, we apply the Brock and Chang criteria. We maintain post-treatment control. Discussion and conclusion: The incidence of ototoxicity of cisplatin is unknown in our country and it is not possible to predict which patients will experience. The increase in the survival rate for cancer involves improving comorbidity, which in the case of its early ototoxicity supposed to find the best solutions to restore the quality of life of patient’s detection.

Biomasa acústica y distribución del jurel Trachurus murphyien el Perú

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Marceliano Segura

2013-10-01

Full Text Available Se analizan los resultados de las evaluaciones hidroacústicas del recurso jurel Trachurus murphyi Nichols 1920 realizadas en aguas peruanas entre 1983 – 2012. Desde 1983 se incluyó al T. murphyicomo especie de estudio durante los cruceros de evaluación de recursos pelágicos ejecutados por el Instituto del Mar del Perú. Debido al énfasis en la estimación de biomasa de la anchoveta Engraulis ringens y de la sardina Sardinops sagax cuando esta última es más abundante, los cruceros se llevan a cabo durante el verano austral y las áreas de evaluación están circunscritas a las zonas más costeras hasta 100 mn, con sólo algunas exploraciones en otras estaciones y hasta 200 millas. El máximo valor de biomasa de 8.51 millones de toneladas de T. murphyien aguas peruanas estimado con las evaluaciones hidroacústicas fue encontrado durante el crucero realizado en otoño (marzo-mayo de 1983. En los años siguientes los estimados de biomasa acústica fluctuaron entre 180 mil toneladas en 1985 y otro máximo de 8.47 millones de toneladas en 1993, para luego disminuir gradualmente hasta un mínimo de 1239 t en 2010, con una ligera recuperación en los años 2011 y 2012. El área de distribución de T. murphyifue muy fluctuante en todo el periodo observado.

Hearing loss and enlarged internal auditory canal in children.

Science.gov (United States)

Santos, Saturnino; Domínguez, M Jesús; Cervera, Javier; Suárez, Alicia; Bueno, Antonio; Bartolomé, Margarita; López, Rafael

2014-01-01

Among the temporal bone abnormalities that can be found in the etiological study of paediatric sensorineural hearing loss (SNHL) by imaging techniques, those related to the internal auditory canal (IAC) are the least frequent. The most prevalent of these abnormalities that is associated with SNHL is stenotic IAC due to its association with cochlear nerve deficiencies. Less frequent and less concomitant with SNHL is the finding of an enlarged IAC (>8mm). Retrospective and descriptive review of clinical associations, imaging, audiological patterns and treatment of 9 children with hearing loss and enlarged IAC in the period 1999 to 2012. Two groups of patients are described. The first, without association with vestibulocochlear dysplasias, consisted of: 2 patients with SNHL without other temporal bone or systemic abnormalities, one with bilateral mixed HL from chromosome 18q deletion, one with a genetic X-linked DFN3 hearing loss, one with unilateral hearing loss in neurofibromatosis type 2 with bilateral acoustic neuroma, and one with unilateral hearing loss with cochlear nerve deficiency. The second group, with association with vestibulocochlear dysplasias, was comprised of: one patient with moderate bilateral mixed hearing loss in branchio-oto-renal syndrome, one with profound unilateral SNHL with recurrent meningitis, and another with profound bilateral SNHL with congenital hypothyroidism. The presence of an enlarged IAC in children can be found in different clinical and audiological settings with relevancies that can range from life-threatening situations, such as recurrent meningitis, to isolated hearing loss with no other associations. Copyright © 2013 Elsevier España, S.L. All rights reserved.

Nitrogeno fekalaren inplikazio nutritiboak : Nafarroako sarrioaren (Rupicapra p. pyrenaica adbidea

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GARIN, I., ALDEZABAL, A., HERRERO, J.

1998-01-01

Full Text Available La calidad de la dieta es uno de los factores más determinantes en el estado de las poblaciones de la fauna silvestre. Debido a que el nitrógeno es escaso en las plantas, el contenido de N del alimento de los herbívoros puede considerarse como índice de la calidad de la dieta. El N de la dieta está directamente relacionado con el N fecal, por lo que la calidad de la dieta de una población puede estimarse a través del análisis de sus heces. Según lo observado en ciertos ungulados, la calidad de la dieta está relacionada con la calidad de las plantas disponibles, y de este modo, es posible categorizar las épocas y ambientes de acuerdo a la calidad de la dieta que los animales obtienen de ellos. El patrón anual del nitrógeno fecal en el sarrio de Navarra es similar al de otros ungulados de latitudes templadas, es decir, los valores más altos en primavera/verano y los más bajos en otoño/invierno. Por otro lado, los valores máximos estimados son similares a los mayores encontrados en los Pirineos, y en consecuencia, sugerimos que ello afecta positivamente en la evolución poblacional del sarrio en Navarra, aunque es necesario un seguimiento de las variaciones anuales del nitrógeno fecal para obtener una idea apropiada de la calidad de la dieta.

Selección bidireccional de Apis mellifera (Hymenoptera: Apidae para aumento de la resistencia y la susceptibilidad a la nosemosis

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Yamandú MENDOZA

2014-01-01

Full Text Available La nosemosis es una enfermedad que afecta las funciones digestivas de las abejas melíferas causada por los microsporidios Nosema apis y Nosema ceranae. En Uruguay la única especie detectada es N. ceranae. Para determinar si la incidencia de N. ceranae en las colonias tiene un componente genético se realizó una selección bidireccional para aumento de la resistencia y la susceptibilidad a este parásito sin control de la paternidad. Las colonias fueron evaluadas en una forestación de Eucalyptus grandis en otoño. La infección de las colonias se determinó como 1 el porcentaje de abejas pecoreadoras infectadas y 2 el número promedio de esporas por campo en 10 campos. El trabajo se inició con 138 colonias y se evaluaron dos generaciones de 30 y 63 colonias. La respuesta a la selección fue muy limitada, solo en la primera generación las colonias de la línea resistente presentaron menos esporas por abejas que las colonias de la línea susceptible (19,6 ± 5,8 y 26,8 ± 10,4, respectivamente, W = 41,5; P = 0.03. Esto indicaría que la resistencia a la nosemosis está fuertemente afectada por el ambiente. Futuros esfuerzos para aumentar la resistencia de las abejas a N. ceranae a través de mejora genética deberán incluir el control de la paternidad.

Analisa Performansi Sistem Air Conditioning Mobil tipe ET 450 dengan Variasi Tekanan Kerja Kompresor

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Adi Purnawan

2012-11-01

Full Text Available Comfort and coolness when traveling by vehicle especially car is highly needed. So many attempts have been made byhumans that comfortable traveling by car can be achieved. One of the effective ways in which comfortable traveling by car can beobtained is by installing air conditioning. The performance of air conditioning system is highly influenced by how the compressorworks. In other words, the pressure resulting from the suction highly determines the performance of air conditioning system,which then affects how the compressor works, the compressor power, the refrigeration effect, the efficiency of isentropic andcoefficient of performance (COP of the car air conditioning sytem especially that of the car air conditioner type ET 450. Fromwhat has been described above, the writer would like to conduct a research entiled “ Analysis of the Performance of the Car AirConditioning system Type ET 450 with Variation of the Compressor Pressure”.The test was conducted on the car air conditioner type ET 450 with variations of suction 2.8 bar, 3 bar, 3.2 bar, 3.4bar, 3.6 bar and 3.8 bar. The data were obtained from the pressure of compressor output (P2, the temperatures in each point areT1, T2, T3, T4, the compressor rotationn is n, the strength of electrical current is I, and the volumetric flow rate. The data werethen processed and analyzed so that so that the performance of each variation of the suction could be actually and theoreticallyobtained.The findings show that the bigger the suction, the bigger the performance of the car air conditioner type ET 450 wouldbe. The theoretical coefficient of performance (COP produced was bigger than the actual COP. The optimal COP took placewhen the suction was 441.325 kPa, the actual COP was 3.513177 and the theoretical COP was 3.632062

Adapted preparation technique for screw-type implants: explorative in vitro pilot study in a porcine bone model.

Science.gov (United States)

Beer, Andreas; Gahleitner, André; Holm, Anders; Birkfellner, Wolfgang; Homolka, Peter

2007-02-01

The aim of this study was to quantify the effect of adapted preparation on the insertion torque of self-tapping implants in cancellous bone. In adapted preparation, bone condensation - and thus, insertion torque - is controlled by changing the diameter of the drilling. After preparation of cancellous porcine vertebral bone with drills of 2.85, 3, 3.15 or 3.35 mm final diameters, Brånemark sytem Mk III implants (3.75 x 11.5 mm) were inserted in 141 sites. During implantation, the insertion torque was recorded. Prior to implant insertion, bone mineralization (bone mineral density (BMD)) was measured with dental quantative computed tomography. The BMD values measured at the implant position were correlated with insertion torque for varying bone condensation. Based on the average torque recorded during implant insertion into the pre-drilled canals with a diameter of 3 mm, torque increased by approximately 17% on reducing the diameter of the drill by 5% (to 2.85 mm). On increasing the diameter of the osteotomy to 3.15 mm (5%) or 3.35 mm (12%), torque values decreased by approximately 21% and 50%, respectively. The results demonstrate a correlation between primary stability (average insertion torque) and the diameter of the implant bed on using a screw-shaped implant. Thus, using an individualized bone mineralization-dependent drilling technique, optimized torque values could be achieved in all tested bone qualities with BMDs ranging from 330 to 500 mg/cm(3). The results indicate that using a bone-dependent drilling technique, higher torque values can also be achieved in poor bone using an individualized drilling resulting in higher bone condensation. As immediate function is dependent on primary stability (high insertion torque), this indicates that primary stability can be increased using a modified drilling technique in lesser mineralized bone.

Advantages of micronuclei analysis through images autocapturing and screen scoring

International Nuclear Information System (INIS)

González, J.E.; Martínez-López, W.

2015-01-01

The cytokinesis-block micronucleus (CBMN) test is a quantitative assay for genetic toxicity assessment. One of the advantages of the MN assay is its amenability for automation. Different type of cells has been used to evaluate genetic damage through MN assay, such as, human lymphocytes and rodent cell lines (i.e. CHO, V79, CHL and L5178Y). The MN quantification is a time consuming process and several efforts has been conducted for its automation. Some of them include an operator checking step, like PathFinder CellScan System, or are fully automated such as MNScore from MetaSytems. Usually, fully automated systems detect two or three times less MN than visual scoring. In some cases, the impact of false positive detection is reduced with a visual detection step. In the present work we have tested a combination of image autocapturing of CHOK1 cells previously treated with bleomycin (0, 2.5, 5.0 and 10.0 μg/ml) or UVC (0, 4, 8 and 16 J/m”2 ) with a screen scoring. Capturing images using the AutoCapture option from Metafer 4 from MetaSystems (GmbH, Germany) plus screen scoring render similar results in terms of MN cells frequency than microscopic live scoring. The resultant bias from the Bland–Altman analysis was -1.1% with confidence intervals between -2.2% and -0.1%, indicating an acceptable agreement between both MN scoring method. However, the mean time devoted to live microscope scoring per sample was 159 minutes compared to 39 minutes for microscope images autocapturing and screen scoring. Therefore, it become advantageous to combine autocapturing of microscope images plus screen scoring when many samples have to be analyzed for radiological biodosimetry purposes. (authors)

EBEX: A Balloon-Borne Telescope for Measuring Cosmic Microwave Background Polarization

Science.gov (United States)

Chapman, Daniel

2015-05-01

EBEX is a long-duration balloon-borne (LDB) telescope designed to probe polarization signals in the cosmic microwave background (CMB). It is designed to measure or place an upper limit on the inflationary B-mode signal, a signal predicted by inflationary theories to be imprinted on the CMB by gravitational waves, to detect the effects of gravitational lensing on the polarization of the CMB, and to characterize polarized Galactic foreground emission. The payload consists of a pointed gondola that houses the optics, polarimetry, detectors and detector readout systems, as well as the pointing sensors, control motors, telemetry sytems, and data acquisition and flight control computers. Polarimetry is achieved with a rotating half-wave plate and wire grid polarizer. The detectors are sensitive to frequency bands centered on 150, 250, and 410 GHz. EBEX was flown in 2009 from New Mexico as a full system test, and then flown again in December 2012 / January 2013 over Antarctica in a long-duration flight to collect scientific data. In the instrumentation part of this thesis we discuss the pointing sensors and attitude determination algorithms. We also describe the real-time map making software, "QuickLook", that was custom-designed for EBEX. We devote special attention to the design and construction of the primary pointing sensors, the star cameras, and their custom-designed flight software package, "STARS" (the Star Tracking Attitude Reconstruction Software). In the analysis part of this thesis we describe the current status of the post-flight analysis procedure. We discuss the data structures used in analysis and the pipeline stages related to attitude determination and map making. We also discuss a custom-designed software framework called "LEAP" (the LDB EBEX Analysis Pipeline) that supports most of the analysis pipeline stages.

The role of water radicals in thermorestoration of bacterial spores

International Nuclear Information System (INIS)

Friedman, Y.S.; Grecz, N.

1974-01-01

Fully hydrated bacterial spores exposed to 0.45 Mrad showed a characteristic pattern of survival associated with thermorestoration. When temperature during radiation was controlled at -15 0 to +120 0 C, the lowest viable cell counts were at 0 0 C. Above 0 0 C radiosurvival gradually increased by 2 to 3 log cycles reaching peak at 75 0 C (Bacillus cereus T heat sensitive spores) and at 95 0 C (B.stearothermophilus, heat resistant spores). Simultaneously high survival was observed in the solidly frozen state at -15 0 C to -5 0 C since harmful radicals produced by radiation were trapped in ice. Radiation modifying effects, i.e., protection by 2M ethanol (a scavenger of OH radicals) and sensitization by 1M sodium nitrate (a scavenger of H radicals and hydrated electrons), were studied. The results with ethanol and nitrate confirm the idea that in aqueous sytems below 50 0 C the lethal action is due to oxidizing OH radicals known to attack cell DNA. However, the reversal of scavenger actions above 50 0 C indicates that at those high temperatures lethal effects may also involve the reducing H and esub(aq), which at lower temperatures appear not to affect spore survival though they are known to attack proteins. In this case, it is proposed that radiation inactivation of spores at temperatures below 50 0 C is due to DNA damage inflicted by OH radicals whereas spore death above 50 0 C seems to involve protein /enzyme/ inactivation due to a combined action of heat plus reducing (H, esub(aq)) as well as oxidizing (OH) radical species. From the practical point of view it is important that normally radioprotective effects of such substances as ethanol or ground beef are progressively lost when radiation is carried out at temperatures above 50 0 C. (F.J.)

Anthropogenic Carbon Pump in an Urbanized Estuary

Science.gov (United States)

Park, J. H.; Yoon, T. K.; Jin, H.; Begum, M. S.

2015-12-01

The importance of estuaries as a carbon source has been increasingly recognized over the recent decades. However, constraining sources of CO2 evasion from urbanized estuaries remains incomplete, particularly in densely populated river systems receiving high loads of organic carbon from anthropogenic sources. To account for major factors regulating carbon fluxes the tidal reach of the Han River estuary along the metropolitan Seoul, characterization of organic carbon in the main stem and major urban tributaries were combined with continuous, submersible sensor measurements of pCO2 at a mid-channel location over a year and continuous underway measurements using a submersible sensor and two equilibrator sytems across the estuarine section receiving urban streams. Single-site continuous measurements exhibited large seasonal and diurnal variations in pCO2, ranging from sub-ambient air levels to exceptionally high values approaching 10,000 ppm. Diurnal variations of pCO2 were pronounced in summer and had an inverse relationship with dissolved oxygen, pointing to a potential role of day-time algal consumption of CO2. Cruise measurements displayed sharp pCO2 pulses along the confluences of urban streams as compared with relatively low values along the upper estuary receiving low-CO2 outflows from upstream dams. Large downstream increases in pCO2, concurrent with increases in DOC concentrations and fluorescence intensities indicative of microbially processed organic components, imply a translocation and subsequent dilution of CO2 carried by urban streams and/or fast transformations of labile C during transit along downstream reaches. The unique combination of spatial and temporal continuous measurements of pCO2 provide insights on estuarine CO2 pulses that might have resulted from the interplay between high loads of CO2 and organic C of anthropogenic origin and their priming effects on estuarine microbial processing of terrigenous and algal organic matter.

Enhance the accuracy of radar snowfall estimation with Multi new Z-S relationships in MRMS system

Science.gov (United States)

Qi, Y.

2017-12-01

Snow may have negative affects on roadways and human lives, but the result of the melted snow/ice is good for farm, humans, and animals. For example, in the Southwest and West mountainous area of United States, water shortage is a very big concern. However, snowfall in the winter can provide humans, animals and crops an almost unlimited water supply. So, using radar to accurately estimate the snowfall is very important for human life and economic development in the water lacking area. The current study plans to analyze the characteristics of the horizontal and vertical variations of dry/wet snow using dual polarimetric radar observations, relative humidity and in situ snow water equivalent observations from the National Weather Service All Weather Prediction Accumulation Gauges (AWPAG) across the CONUS, and establish the relationships between the reflectivity (Z) and ground snow water equivalent (S). The new Z-S relationships will be evaluated with independent CoCoRaHS (Community Collaborative Rain, Hail & Snow Network) gauge observations and eventually implemented in the Multi-Radar Multi-Sensor system for improved quantitative precipitation estimation for snow. This study will analyze the characteristics of the horizontal and vertical variations of dry/wet snow using dual polarimetric radar observations, relative humidity and in situ snow water equivalent observations from the National Weather Service All Weather Prediction Accumulation Gauges (AWPAG) across the CONUS, and establish the relationships between the reflectivity (Z) and ground snow water equivalent (S). The new Z-S relationships will be used to reduce the error of snowfall estimation in Multi Radar and Multi Sensors (MRMS) system, and tested in MRMS system and evaluated with the COCORaHS observations. Finally, it will be ingested in MRMS sytem, and running in NWS/NCAR operationally

FY 1974 Report on results of Sunshine Project. Feasibility study on techniques for measurement of conditions within geothermal wells; 1974 nendo chinetsu koseinai sokutei gijutsu ni kansuru feasibility study

Energy Technology Data Exchange (ETDEWEB)

NONE

1975-03-01

This report covers the principles and methods of various bed-detecting techniques and their application, to begin with, current status of these techniques, results of feasibility studies on system data processing, well mouth analyzing systems, how to develop techniques for detecting geothermal beds, bed-detecting systems and environment-simulating devices, and finally conclusions, for the subject research and development project. The detecting techniques used for the geothermal area include those based on electrical properties, temperature, pressure and flow rate, analysis of core and fluids collected by analyzing systems at the well mouths, and detection of H{sub 2}S gas. Evaluation of geothermal reservoirs needs the data of absolute temperature of the geothermal sources, quantities of vapors spouting out of the wells, depth of boiling planes and pressure; and other basic data, e.g., void volumes of broad sense, quantitative evaluation results of cracks, shapes of naked well walls, expansion of reservoirs relative to bed, and effective bed thickness, which are determined by bed-detecting techniques for physical properties. It is necessary to develop the bed-detection systems adequately covering bed-detection items, detection of production beds for geothermal measurement, other bed-detection systems, and heat-resistant wire line cables and other cables serviceable at high temperature, as the essential items for obtaining the above data. (NEDO)

Positron lifetime measurements and positron-annihilation induced auger electron spectroscpy using slow positron beams; Teisoku yodenshi bimu wo mochiita yodenshi jumyo sokutei oyobi yodenshi shometsu reiki oje denshi bunko

Energy Technology Data Exchange (ETDEWEB)

Suzuki, R. [Electrotechnical Lab., Tsukuba (Japan)

1996-02-20

Slow positron beam with less than several eV can be controlled freely such as accelerating, throttling the beam size, shortening the pulse or making pulse with short time width and so forth. These low positron beams are applied to various measurements like Doppler broadening measurement of annihilation {gamma} rays or lifetime measurement of positron, and secondary particle measurements using positron microscope, positron electron ray diffraction, flight time method and so forth. In particular, these recent years, high intensity slow positron beams were possible using accelerators like electron linac and its application is increasing. In this report, pulse shortening method for high intensity slow positron beam, and incidence energy variable positron lifetime measurement method using this slow pulsed beam and flight time type positron-annihilation-induced auger electron spectroscopy are outlined. In future, these measurements can be possible to carry out with high resolution and also with high counting rate if higher intensity monochromatic excellent positron beam than present one is produced. 31 refs., 5 figs.

Study on characteristics of response to nodal vibration in a main hull of a large-size ferry boat; Ogata feri no shusentai yodo oto tokusei ni kansuru kenkyu

Energy Technology Data Exchange (ETDEWEB)

Takimoto, T; Yamamoto, A; Kasuda, T; Yanagi, K [Mitsubishi Heavy Industries, Ltd., Tokyo (Japan)

1996-04-10

Demand for reduction in vibration and noise in large-size ferry boats has been severer in recent years. On the other hand, vibration exciting force in main engines and propellers is on an increasing trend in association with increase in speed and horsepower. A large-size ferry boat uses an intermediate-speed diesel engine which has high vibration exciting frequency. Therefore, discussions were given on characteristics of response to nodal vibration in a main hull induced by primary internal moment in a main engine in a large-size ferry boat mounting an intermediate speed main engine. Results of detailed vibration calculations, vibration experiments using an actual ship, and results of measurements were used for the discussions. Natural frequency for two-node vibration above and below the main hull was set for an equation of estimation such that the whole ship is hypothesized to have been structured with beams having the same cross section according to the Todd`s equation, and effect of rigidity of the long structure can be evaluated. Parameters were derived by using the minimum square method that uses the measured natural frequency of the ship A through the ship E among large-size ferry boats. The derived result may be summarized as follows: this equation of estimation has an estimation error of about 5% against the natural frequency for nodal vibration above and below the main hull; and this equation of estimation has an estimation error of about 30% against the acceleration in the vertical direction at the end of the stern. 2 refs., 11 figs., 1 tab.

Determination of electron impact ionization and excitation coefficients in He-Xe gas mixtures. He-Xe kongo gas ni okeru denshi shototsu denri keisu oyobi reiki keisu no sokutei to kaiseki

Energy Technology Data Exchange (ETDEWEB)

Takahashi, K.; Tachibana, K. (Kyoto Inst. of Technology, Kyoto (Japan))

1991-03-20

The rare gas discharge gives a stable discharge and light emission characteristics at low temperature in comparison with the discharge of the vapor of such a metal as Hg. The present barrier for the commercialization of the color PDP lies in the lower level of its emission intensity and efficiency in comparison with that of CRT. In this report, an electron impact ionization coefficient in a gas mixture and an electron impact excitation coefficient for a XeIs {sub 4} level were analyzed using a Boltzmann equation by means of a steady state Townsend method using a drift tube. By comparing both, the elementary process in the gas mixture is investiagted to discuss the respective contributions for the effective ionization coefficient and the excitation coefficient. As a result, it was found that the ionization process in the He-Xe gas mixture could be described by the processes of direct ionization of Xe and He, and an indirect ionization (Penning effect) by an active helium. 37 refs., 12 figs.

Measurement and correlation of infinite dilution activity coefficients of alcohols in hexadecane and tetradecane; Hexadecane oyobi tetradecane chu no alcohol rui no mugen kishaku katsuryo keisu no sokutei narabini sokan

Energy Technology Data Exchange (ETDEWEB)

Fukuchi, K.; Miyoshi, K. [Ube National College of Technology, Yamaguchi (Japan)

1996-03-10

The infinite dilution activity coefficients of alcohols (methanol, ethanol, 1-propanol, 2-propano, 1-butanol, and 2-butanol) in heavy paraffinic hydrocarbons (hexadecane and tetradecane) were measured in the region 20-80{degree}C by a gas stripping method. The ASOG model was applied to calculate the infinite dilution activity coefficients. The infinite dilution activity coefficients can be correlated by adjusting the group interaction parameters between hydroxy and methyl groups. 8 refs., 3 figs., 4 tabs.

Analysis of chromatic dispersion compensation by measuring time domain optical spectrum distribution of light pulse; Hikari pulse chu no hacho jikan bunpu sokutei ni yoru bunsan hosho gijutsu no hyokaho

Energy Technology Data Exchange (ETDEWEB)

Saito, M.; Kurono, M. [Central Research Institute of Electric Power Industry, Tokyo (Japan)

1997-05-01

A large number of single mode fibers (SMF) for 1.3 {mu}m light are installed in electric power communication facilities. On the other hand, light of 1.5 {mu}m band is being used more in the capacity increasing technology to minimize transmission loss. If this is applied to the current SMF, waveform distortion is generated due to wavelength dispersion, thus the transmission speed and distance are limited. In order to evaluate quantitatively the effects of a wavelength dispersion compensating technology, a method was developed to derive time change in each wavelength component in light pulse. No sufficient wavelength separation is possible if permeation bandwidth of a wavelength filter is wider than the wavelength width of the light pulse. Therefore, a method was developed to derive time change in the wavelength components in the light pulse from small difference in the measured light waveforms after transmission when the central wavelength of a wavelength variable filter is varied. It was possible from comparing the method to derive the wavelength dispersion amount and the dispersion compensation amount. Since the method reveals simultaneously the distribution of strength against wavelength and time contained in light pulse, the method is advantageous in elucidating compensation limit and causes for compensation errors. The effectiveness of the method was verified by a 1.5-{mu}m light transmission test. 14 refs., 26 figs., 2 tabs.

Desafíos en la creación, desarrollo e implementación de los MOOC: El curso de Web Science en la Universidad de Southampton

Directory of Open Access Journals (Sweden)

María del Mar Sánchez Vera

2015-01-01

Full Text Available El carácter masivo es una de las peculiaridades de los MOOC, que lo diferencian de otro tipo de experiencias de aprendizaje en red. Este hecho configura una serie de posibilidades, pero también una serie de retos que hay que tener en cuenta a la hora de diseñar e implementar un curso masivo en red, en relación, por ejemplo, a los contenidos, el proceso de trabajo, las actividades, la evaluación y el feed-back. Este trabajo presenta un análisis de las ventajas y desventajas del carácter masivo de los MOOC y concretamente describe la experiencia de creación de un MOOC sobre Web Science desarrollada en la Universidad de Southampton (Reino Unido en la plataforma FutureLearn durante el otoño de 2013. Se analiza la importancia del estudio de la rama de Web Science y cómo se originó esta experiencia. También describen las decisiones y el proceso de trabajo desarrollado para la creación e implementación del MOOC en concreto. Se termina este trabajo analizando alguno de los datos que se han obtenido, como el índice de participación (ligeramente elevado respecto a la media de los MOOC, los comentarios de los participantes, la manera de gestionar la facilitación del curso y algunos de los retos que nos encontramos a la hora de gestionar un MOOC, que se relacionan con el diseño del curso, la plataforma que se utiliza y cómo se organiza la facilitación del curso.

Nuevos aportes a la historia natural de la mulita pampeana Dasypus hybridus (Mammalia, Dasypodidae

Directory of Open Access Journals (Sweden)

Agustín M. Abba

2011-12-01

Full Text Available En este trabajo se presentan nuevos aportes sobre la historia natural de la mulita pampeana Dasypus hybridus (Desmarest, 1804 (Mammalia, Xenarthra, Dasypodidae. Los estudios de campo fueron llevados a cabo en 100 ha de cuatro establecimientos agropecuarios de la provincia de Buenos Aires, Argentina. Durante tres años se realizó un muestreo estacional de armadillos por captura y liberación. Se obtuvieron datos de hábitos alimentarios, uso del espacio y del tiempo, comportamiento, termorregulación, datos poblacionales y morfológicos. Se realizaron 71 capturas. En la dieta el ítem principal registrado fue material vegetal, seguido por hormigas e insectos coleópteros; no se observó una diferencia estacional en los hábitos alimentarios. La actividad de las mulitas se concentra durante el día, existió una baja en la frecuencia de observación durante las estaciones frías (otoño e invierno. La mulita pampeana prefiere suelos húmicos, terrenos altos y pastizales densos y altos; asimismo seleccionan los montes para refugiarse. Son individuos asociales. La temperatura rectal mostró correlaciones positivas con la temperatura ambiente. La proporción de sexos fue cercana a uno y no se observó dimorfismo sexual. Los resultados obtenidos concuerdan parcialmente con lo observado para otras especies del género, destacando las tendencias observadas en los hábitos alimentarios y en la estrategia termorregulatoria. Este trabajo representa un aporte en varios aspectos de una especie poco estudiada en una zona bajo importantes presiones de uso y modificación de hábitat.

Newborn hearing screening: analysis and outcomes after 100,000 births in Upper-Normandy French region.

Science.gov (United States)

Caluraud, Sophie; Marcolla-Bouchetemblé, Aurore; de Barros, Angélique; Moreau-Lenoir, Florence; de Sevin, Emmanuel; Rerolle, Stéphane; Charrière, Elisabeth; Lecler-Scarcella, Véronique; Billet, François; Obstoy, Marie-Françoise; Amstutz-Montadert, Isabelle; Marie, Jean-Paul; Lerosey, Yannick

2015-06-01

Neonatal hearing impairment is a common disorder with a prevalence of 1 to 2‰ worldwide, with significant consequences on overall development when rehabilitated too late. New-born hearing screening has been implemented in the 1990s in most European countries and the USA. The Upper-Normandy region of France has been conducting a pilot program since 1999. The aim of this prospective study was to evaluate and critically analyse it. The Upper-Normandy universal new-born hearing screening program is performed in two steps. Between 1999 and 2004, first, we administered a Transient Evoked Oto Acoustic Emission (TEOAE) test was administered a few days after birth for healthy newborns without risk factors. For newborns admitted to a neonatal intensive care unit (NICU) or presenting risk factors, was administered an automated auditory brainstem response (AABR) test prior to discharge. Second, newborns who failed the initial hearing screening were retested as outpatients using TEOAE. Since 2004, infants who failed the initial screen were tested with AABR 3 to 4 weeks later as outpatients, providing an opportunity to compare the two protocols. Overall screening coverage in the Upper-Normandy region is 99.8%. First step coverage is 99.58% in well-infant nurseries and 97.09% in the NICU. The test-retest procedure during the first step and the use of AABR for the second resulted in higher follow-up rates and lower false positive rates. The Upper-Normandy region universal newborn hearing screening program facilitated diagnosis and rehabilitation of infants before age of 9 months, most notably when severe to profound hearing impairment was found. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Prototype equipment status monitor for plant operational configuration management

International Nuclear Information System (INIS)

DeVerno, M.; Trask, D.; Groom, S.

1998-01-01

CANDU plants, such as the Point Lepreau GS, have tens of thousands of operable devices. The status of each operable device must be immediately available to plan and execute future changes to the plant. Historically, changes to the plant's operational configuration have been controlled using manual and administrative methods where the status of each operable device is maintained on operational flowsheets located in the work control area of the main control room. The operational flowsheets are used to plan and develop Operating Orders (OOs) or Order-to-Operate (OTOs) and the control centre work processes are used to manage their execution. After performing each OO procedure, the operational flowsheets are updated to reflect the new plant configuration. This process can be very time consuming, and due to the manual processes, can lead to the potential for time lags and errors in the recording of the current plant configuration. Through a cooperative research and development program, Canadian CANDU utilities and Atomic Energy of Canada Limited, the design organization, have applied modern information technologies to develop a prototype Equipment Status Monitor (ESM) to address processes and information flow for efficient operational configuration management. The ESM integrates electronic operational flowsheets, equipment databases, engineering and work management systems, and computerized procedures to assess, plan, execute, track, and record changes to the plant's operational configuration. This directly leads to improved change control, more timely and accurate plant status information, fewer errors, and better decision making regarding future changes. These improvements to managing the plant's operational configuration are essential to increasing plant safety, achieving a high plant availability, and maintaining high capability and capacity factors. (author)

Value of transmission electron microscopy for primary ciliary dyskinesia diagnosis in the era of molecular medicine: Genetic defects with normal and non-diagnostic ciliary ultrastructure.

Science.gov (United States)

Shapiro, Adam J; Leigh, Margaret W

2017-01-01

Primary ciliary dyskinesia (PCD) is a genetic disorder causing chronic oto-sino-pulmonary disease. No single diagnostic test will detect all PCD cases. Transmission electron microscopy (TEM) of respiratory cilia was previously considered the gold standard diagnostic test for PCD, but 30% of all PCD cases have either normal ciliary ultrastructure or subtle changes which are non-diagnostic. These cases are identified through alternate diagnostic tests, including nasal nitric oxide measurement, high-speed videomicroscopy analysis, immunofluorescent staining of axonemal proteins, and/or mutation analysis of various PCD causing genes. Autosomal recessive mutations in DNAH11 and HYDIN produce normal TEM ciliary ultrastructure, while mutations in genes encoding for radial spoke head proteins result in some cross-sections with non-diagnostic alterations in the central apparatus interspersed with normal ciliary cross-sections. Mutations in nexin link and dynein regulatory complex genes lead to a collection of different ciliary ultrastructures; mutations in CCDC65, CCDC164, and GAS8 produce normal ciliary ultrastructure, while mutations in CCDC39 and CCDC40 cause absent inner dynein arms and microtubule disorganization in some ciliary cross-sections. Mutations in CCNO and MCIDAS cause near complete absence of respiratory cilia due to defects in generation of multiple cellular basal bodies; however, the scant cilia generated may have normal ultrastructure. Lastly, a syndromic form of PCD with retinal degeneration results in normal ciliary ultrastructure through mutations in the RPGR gene. Clinicians must be aware of these genetic causes of PCD resulting in non-diagnostic TEM ciliary ultrastructure and refrain from using TEM of respiratory cilia as a test to rule out PCD.

Evaluación de tres métodos para la inactivación de coliformes y Escherichia coli presentes en agua residual doméstica, empleada para riego

Directory of Open Access Journals (Sweden)

Andrea Sánchez- Garibello

2010-08-01

Full Text Available Evaluation of three methods for the inactivation of coliforms and Escherichia coli present in domestic wastewaters used inirrigation. Objective. To evaluate three treatments (facultative stabilization ponds, heterogeneous photocatalysis with TiO2 and chemicaldisinfection with sodium hypochlorite for the inactivation of coliforms and Escherichia coli present in domestic wastewaters used inagricultural irrigation. Materials and methods. Wastewater was characterized by physical, chemical and microbiological analyses and wasthen exposed to a facultative pond treatment (FPT, post-photocatalytic treatment (PTFTiO2/UV and post-chemical treatment (PTQNaClOto assess the disinfecting capacity of each method in the inactivation of total coliforms and E. coli. Three new samples of wastewater wereprocessed and used in irrigation tests on a laboratory-scale basis for 30 days, using Lactuca sativa cultivar. Batavia as a model plant andevaluating the initial and final concentrations of the two groups. Results. PTFTiO2/UV was significantly higher than FPT and PTQNaClO(p<0.0001, obtaining 100% of inactivation of coliforms and E. coli after 30 minutes of irradiation at a reactor scale. Regarding the irrigationtests with L. sativa, we showed that using water treated by PTFTiO2/UV there is no contamination with E. coli and coliforms after 30 days.On the contrary, plants irrigated with water treated by FPT and PTQNaClO showed an increase in the two populations originating a contamination problem in the vegetable by the end of the laboratory experiments. Conclusion. The heterogeneous photocatalysis with TiO2was an effective method in the reduction of coliforms and E. coli present in domestic wastewater.

Estudio sobre la Eficacia a Campo del Amivar® contra Varroa destructor (Mesostigmata: Varroidae en Colmenas de Apis mellifera (Hymenoptera: Apidae

Directory of Open Access Journals (Sweden)

Jorge MARCANGELI

2005-01-01

Full Text Available El objetivo del trabajo fue evaluar la eficacia del producto Amivar® para el control del ácaro Varroa destructor Anderson & Trueman, en colmenas de abejas durante el otoño de 2003. El trabajo se llevó a cabo en el apiario experimental del Centro de Extensión Apícola ubicado en Coronel Vidal, provincia de Buenos Aires. Se trabajó sobre un total de 20 colmenas tipo Langstroth que se dividieron en dos grupos iguales. En el primer grupo se introdujo una tira de Amivar® (amitraz, 1gr, Apilab, Argentina en el centro del nido de cría de las colmenas. El segundo grupo, sólo recibió el tratamiento de Oxavar® para determinar el número total de ácaros presentes en las colmenas. Semanalmente, se recolectaron los ácaros muertos caídos en pisos especiales que evitaban que las abejas los eliminen. Posteriormente, los dos grupos recibieron tres dosis en total a intervalos de siete días de 5 ml del producto Oxavar® (Apilab-INTA, Argentina; 64,6 g/l; ácido oxálico en agua destilada por cuadro cubierto por abejas para eliminar los ácaros remanentes en las colonias y poder así calcular la eficacia del tratamiento. El producto Amivar® presentó una eficacia promedio de 85,05% ± 3,39 (rango = 79,5 – 91,6, registrándose diferencias significativas frente al grupo control (p< 0,05. No seobservaron efectos negativos del producto sobre la cría de abejas en desarrollo. Estos resultados demuestran que este producto es efectivo para el control de la parasitosis.

The European Working Time Directive and the effects on training of surgical specialists (doctors in training): a position paper of the surgical disciplines of the countries of the EU.

Science.gov (United States)

Benes, V

2006-11-01

Legislation launched with the EWTD was born as a "Protection of the clinical personnel against overwork for the benefit of Patients" (consumer protection and safety). It appeared that this legislation is in direct and severe conflict with former EU legislation to train competent surgical specialists. First experiences with the EWTD show far reaching and serious consequences on the training of surgical specialists as well as on medical care. There will be a reduction of about 30-35% of clinical and operative experience acquired during the usual 6 yrs of training, with many other negative aspects (see p. 7). All measures proposed so far to overcome the ensuing problems are unworkable. The training of competent surgical specialists as required by the Directive 93/16 EEC is no longer possible and serious problems with safe patient care will occur in the short term, if no political actions are taken. The surgical specialties, represented in the UEMS, provide a proposal for a working hour model consisting of 48 hrs working time (incl. service duties) plus additional 12 hrs reserved and protected for teaching and training. This model would adhere to the EWTD on the one hand, yet maintain the desired standard of training. This proposed exemption from the EWTD would be limited to the time of specialist training. We ask the responsible politicians to find a solution rapidly to prevent serious negative consequences. This motion is supported by the surgical specialties (neurosurgery, general surgery, orthopaedic surgery, paediatric surgery, cardio-thoracic surgery, vascular surgery, oto-rhino-laryngology, list not complete) of the member states of the EU, representing more than 80,000 surgical specialists.

Diagnosis and interim treatment outcomes from the first cohort of multidrug-resistant tuberculosis patients in Tanzania.

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Stellah G Mpagama

Full Text Available Kibong'oto National Tuberculosis Hospital (KNTH, Kilimanjaro, Tanzania.Characterize the diagnostic process and interim treatment outcomes from patients treated for multidrug-resistant tuberculosis (MDR-TB in Tanzania.A retrospective cohort study was performed among all patients treated at KNTH for pulmonary MDR-TB between November 2009 and September 2011.Sixty-one culture-positive MDR-TB patients initiated therapy, 60 (98% with a prior history of TB treatment. Forty-one (67% were male and 9 (14% were HIV infected with a mean CD4 count of 424 (±106 cells/µl. The median time from specimen collection to MDR-TB diagnosis and from diagnosis to initiation of MDR-TB treatment was 138 days (IQR 101-159 and 131 days (IQR 32-233, respectively. Following treatment initiation four (7% patients died (all HIV negative, 3 (5% defaulted, and the remaining 54 (89% completed the intensive phase. Most adverse drug reactions were mild to moderate and did not require discontinuation of treatment. Median time to culture conversion was 2 months (IQR 1-3 and did not vary by HIV status. In 28 isolates available for additional second-line drug susceptibility testing, fluoroquinolone, aminoglycoside and para-aminosalicylic acid resistance was rare yet ethionamide resistance was present in 9 (32%.The majority of MDR-TB patients from this cohort had survived a prolonged referral process, had multiple episodes of prior TB treatment, but did not have advanced AIDS and converted to culture negative early while completing an intensive inpatient regimen without serious adverse event. Further study is required to determine the clinical impact of second-line drug susceptibility testing and the feasibility of alternatives to prolonged hospitalization.

Adaptación de Cultivares de Ajo Morado y Blanco (Allium sativum L. en Acatlán, Guerrero, México. Adaptación de Cultivares de Ajo Morado y Blanco (Allium sativum L. en Acatlán, Guerrero, México

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Efrén Cevallos Ruiz

2012-02-01

Full Text Available En el estado de Guerrero, México, el ajo se cultiva en la región Centro, en los municipios de Chilapa y Zitlala, donde los productores acostumbran sembrar el genotipo criollo adaptado a las condiciones climáticas de la región. El objetivo fue estudiar la adaptación del cultivo del ajo de los tipos morado y blanco a la región Centro de Guerrero por su rendimiento y calidad, ya sea para el mercado nacional o el de exportación. La investigación se llevó a cabo durante el ciclo otoño-invierno 2000-2001 en la comunidad de Acatlán, municipio de Chilapa de Álvarez, Guerrero. Se evaluaron 13 materiales de ajo, bajo un diseño experimental de bloques completos al azar con cuatro repeticiones; se hizo la separación de medias por medio de la prueba de Tukey P In the state of Guerrero, Mexico, garlic is cultivated in the Central region, at Chilapa and Zitlala municipalities, where the growers cultivate Criollo Regional genotype adapted to the climatic conditions of the region. The object of this investigation was to study the adaptability of the cultivars of the purple and the white garlic in Guerrero’s central region, considering both their yield and quality for the domestic and/or export markets. Research work was conducted during the 2000- 2001 fall-winter cycle, in Acatlan, municipality of Chilapa de Alvarez, Guerrero. Thirteen garlic cultivars were evaluated using completely randomized blocks design, with four repetitions. Mean separation using Tukey test P

The protective effect of moderate noisy backgrounds for certain period on hearing after exposure to a traumatic noise in guinea pig

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Xiao-hua WANG

2013-03-01

Full Text Available Objective 　To investigate the protective effect of moderate noisy backgrounds on guinea pig's hearing after an exposure to a traumatic noise. Methods 　Thirty guinea pigs were randomly divided into five groups (6 each. Animals in group A, B, C and D were subjected to noise of 84 decibels sound pressure level (dB SPL for 4, 8, 24 and 0 hour respectively after a traumatic exposure of 110 dB SPL, and those in group E were kept in quiet environment. Distortion product oto-acoustic emission (DPOAE amplitudes were determined on 1 day prior, and 1 and 7 days after noise exposure. Blood plasma was obtained to determine the contents of malondialdehyde (MDA and the activities of hemocuprein (SOD and nitricoxide synthase (NOS at the end of the experiment. Results 　Noise-induced hearing loss was caused in group D after a traumatic exposure. At the 1st and 7th day after exposure, DPOAE amplitudes were higher in group A and B than in group D, especially at high frequencies, while no significant difference was observed between group C and D. At the 7th day after exposure, the activity of SOD lowered, while the content of MDA increased in group A and B as compared with group E (P<0.05. The content of MDA in group A increased as compared with group D (P<0.05. Conclusion 　After the traumatic noise-exposure, the recovery of noise-induced hearing loss, especially the high-frequency hearing loss could be motivated when exposed to noise at 84 dB SPL for 4 or 8 hours.

Dependence of leaf surface potential response of a plant (Ficus Elastica) to light irradiation on room temperature; Shokubutsu (gomunoki) hamen den`i no hikari shosha oto no shitsuon izonsei

Energy Technology Data Exchange (ETDEWEB)

Ishii, H; Kenmoku, Y; Sakakibara, T [Toyohashi University of Technology, Aichi (Japan); Nakagawa, S [Maizuru National College of Technology, Kyoto (Japan); Kawamoto, T [Shizuoka University, Shizuoka (Japan)

1997-11-25

In order to clarify plant body potential information, study was made on a leaf surface potential response to light irradiation. The leaf surface potential change, total transpiration and transpiration rate of Ficus Elastica were measured using light irradiation period and room temperature as parameters. The leaf surface potential change shows a positive peak after the start of light irradiation, while a negative peak after its end. Arrival time to both peaks is constant regardless of the light irradiation period, while decrease with an increase in room temperature. Although the total transpiration increases with room temperature, this tendency disappears with an increase in light irradiation period. The transpiration rate shows its peak after the start of light irradiation. Arrival time to the peak is saturated with the light irradiation period of 60min, while decreases with an increase in room temperature. These results suggest that opening of stomata becomes active with an increase in room temperature, and the peak of the leaf surface potential after the start of light irradiation relates to the opening. 3 refs., 11 figs.

Structural response analysis of very large floating structures in waves using one-dimensional finite element model; Ichijigen yugen yoso model ni yoru choogata futai no harochu kozo oto kaiseki

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Fujikubo, M.; Yao, T.; Oida, H. [Hiroshima University, Hiroshima (Japan). Faculty of Engineering

1996-12-31

Formulation was made on a one-dimensional beam finite element which is effective in analyzing structural response of very large floating structures by modeling them on beams on an elastic foundation. This element allows strict solution of vibration response in the beams on the elastic foundation to be calculated efficiently for a case where mass and rigidity change in the longitudinal direction. This analysis method was used to analyze structural response of a large pontoon-type floating structure to investigate mass in the end part for the structural response and the effect of decay while passing the structure. With a pontoon-type floating structure, reduction in bends and bending stress in the end part of the floating structure is important in designing the structure. Reducing the mass in the end part is effective as a means to avoid resonance in these responses and reduce the responses. Increase in rigidity of a floating structure shifts the peak in quasi-static response to lower frequency side, and reduces response in resonance, hence it is advantageous for improving the response. Since incident waves decay while passing through the floating structure, response in the lower wave side decreases. The peak frequency in the quasi-static response also decreases at the end part of the structure in the upper wave side due to decay in wave force. 7 refs., 11 figs., 1 tab.

Structural response analysis of very large floating structures in waves using one-dimensional finite element model; Ichijigen yugen yoso model ni yoru choogata futai no harochu kozo oto kaiseki

Energy Technology Data Exchange (ETDEWEB)

Fujikubo, M; Yao, T; Oida, H [Hiroshima University, Hiroshima (Japan). Faculty of Engineering

1997-12-31

Formulation was made on a one-dimensional beam finite element which is effective in analyzing structural response of very large floating structures by modeling them on beams on an elastic foundation. This element allows strict solution of vibration response in the beams on the elastic foundation to be calculated efficiently for a case where mass and rigidity change in the longitudinal direction. This analysis method was used to analyze structural response of a large pontoon-type floating structure to investigate mass in the end part for the structural response and the effect of decay while passing the structure. With a pontoon-type floating structure, reduction in bends and bending stress in the end part of the floating structure is important in designing the structure. Reducing the mass in the end part is effective as a means to avoid resonance in these responses and reduce the responses. Increase in rigidity of a floating structure shifts the peak in quasi-static response to lower frequency side, and reduces response in resonance, hence it is advantageous for improving the response. Since incident waves decay while passing through the floating structure, response in the lower wave side decreases. The peak frequency in the quasi-static response also decreases at the end part of the structure in the upper wave side due to decay in wave force. 7 refs., 11 figs., 1 tab.

Measurement of electric intensity distribution inside a human cadaver cochlea for multichannel cochlear implants; Multichannel jinko naiji no tame no hito no tekishutsu kagyunai ni okeru denkai kyodo bunpu no sokutei

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Miyoshi, S.; Ifukube, T.; Matsushima, J. [Hokkaido University, Sapporo (Japan)

1998-03-01

We have proposed a Tripolar Electrode Stimulation Method (TESM) which may succeed in narrowing the stimulation region and continuously moving the stimulation site for cochlear implants. The TESM stimulates the auditory nerve array through lymph liquid using the 3 adjacent electrodes which are selected among the electrodes of an electrode array. The currents from the two electrodes on both sides are emitted and a central electrode receives them. The current received by the central electrode is made equal to the sum of the currents emitted from the electrodes on both sides. In this paper, the electric intensity profiles produced by the TESM and the monopolar stimulation were measured in a human cadaver cochlea and in a saline solution. As a result, in the TESM, the electric intensity profile produced in the human cadaver cochlea was about the same as that in the saline solution In monopolar stimulation, the electric intensity profile was broader than that of TESM in a human cadaver cochlea. 9 refs., 14 figs.

Reproductive biology of the critically endangered endemic Mediterranean plant Coincya rupestris subsp. rupestris (Spain: the effects of competition and summer drought on seedling establishment Biología reproductiva de la planta endémica mediterránea amenazada Coincya rupestris subsp. rupestris (España: efectos de la competencia y sequía estival en el establecimiento de plántulas

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MIGUEL A COPETE

2008-09-01

las dos poblaciones principales del taxon (sureste de España. La producción de flores por planta (media ± DE osciló entre 483 (± 688 y 748 (± 636 en las dos poblaciones estudiadas, y la de frutos entre 317 (± 518 y 553 (± 500, con valores medios de 1.607-2.798 semillas/planta, por lo que la rareza de la especie no parece debida a su baja fertilidad. La razón frutos/flores osciló entre 0,60-0,75, con diferencias significativas entre poblaciones. La floración se extendió desde febrero-marzo hasta finales de primavera, con valores de sincronía muy elevados (= 85 %. Además esta variable presentó una correlación negativa con respecto a la duración. Por otra parte, únicamente en la población clásica del taxon, se analizó el papel de los insectos polinizadores en el éxito reproductivo, así como el efecto de tratamientos de riego y eliminación de la competencia en el reclutamiento de plántulas. Claramente, la exclusión de insectos polinizadores tuvo un efecto negativo en la fructificación, pasándose de un éxito reproductivo intermedio con insectos polinizadores (= 0,5, a otro prácticamente nulo con exclusión. La emergencia de plántulas fue otoñal y no se detectó influencia de los factores evaluados. Se observó una elevada variabilidad interanual en el tamaño y supervivencia de las cohortes de plántulas originadas cada otoño. La principal conclusión derivada del trabajo es que la rareza del taxon no viene impuesta por restricciones en su fecundidad.

Creating new populations of Apium bermejoi (Apiaceae, a critically endangered endemic plant on Menorca (Balearic Islands

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Rita, Juan

2013-06-01

poblaciones previstas en el Plan de Recuperación de esta especie que, entre otras, constaba de: 1 introducción en dos nuevas localidades (2008, 2 re - for zamiento de la población original y 3 programa de seguimiento de la dinámica de todas las poblaciones (naturales e introducidas a lo largo de 4 años (2006-2010. Para la introducción y reforzamiento se utilizaron plantas germinadas a partir de un lote de semillas de la población original. Se realizaron censos mensuales de todos los individuos/manchas y de las plántulas emergidas, de éstas se evaluó su supervivencia a los 3-4 meses. La supervivencia de los individuos plantados a los tres meses fue del 59,0% y del 56,3% en las dos nuevas localidades; más del 80% de estas plantas fructificaron. Se observó un patrón estacional con valores de cobertura mínimos en los censos de finales de verano, incrementos durante el otoño y valores máximos en el censo de mayo/junio. Las poblaciones presentaron una elevada fluctuación interanual tanto en número de individuos/manchas como en cobertura. El número de plántulas emergidas fue muy variable entre años, su número y supervivencia se relacionó con eventos meteorológicos puntuales, como lluvias torrenciales y periodos secos y cálidos durante el otoño. La fase inicial de las introducciones ha sido globalmente exitosa, aunque la evaluación final deberá hacerse a largo plazo.

Estructura de la comunidad y asociación de las aves acuáticas con la heterogeneidad espacial del complejo lagunar Bahía Magdalena-Almejas, Baja California Sur, México

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Bulmara Zárate-Ovando

2008-03-01

Full Text Available Para probar la hipótesis que la heterogeneidad espacial determina la diversidad de aves acuáticas en un humedal costero, comparamos la densidad, diversidad y composición de especies de aves acuáticas entre habitats y otras unidades de paisaje del complejo Bahía Magdalena-Almejas, Baja California Sur, México. Se realizaron censos de aves acuáticas en 329 segmentos de habitat de la línea de costa interna del complejo lagunar, desde febrero 2002 hasta febrero 2003. La densidad de aves fue mayor en invierno y otoño en las tres lagunas del área de estudio; de las zonas, la densidad fue mayor en la costa insular; y de los habitats en playa arenosa y dunas pero en los pocos segmentos de sustrato antrópico la densidad fue alta. La diversidad fue significativamente mayor en otoño; en Canal Santo Domingo; en la costa peninsular; y de los habitats en manglar-dunas y manglar. La modificación del habitat natural costero y el disturbio por tránsito de embarcaciones no tuvieron influencia en la densidad o diversidad de aves acuáticas, pero la riqueza acumulada mayor ocurrió en las costas bien conservadas y sin disturbio. El análisis de la composición de especies mostró diferencias entre las asociaciones de Canal Santo Domingo y Bahía Magdalena. El ambiente pelágico y el manglar tuvieron diferencia mayor en la composición de especies con respecto a las asociaciones de los demás habitats, tales diferencias en elencos de especies por habitat sugieren que la comunidad de aves está estructurada de acuerdo a los recursos naturales disponibles de las lagunas, zonas y habitats, en relación con la complejidad estructural de las unidades de paisaje. Las condiciones ecológicas del complejo lagunar ocasionan que las aves acuáticas piscívoras sean el grupo dominante de esta comunidad.Community structure and association of waterbirds with spatial heterogeneity in the Bahía Magdalena-Almejas wetland complex, Baja California Sur, Mexico. To test

Latencia y banco de semillas en plantas de la región mediterránea de Chile central Seed bank and dormancy in plants of the Mediterranean region of central Chile

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JAVIER A. FIGUEROA

2004-03-01

Full Text Available Los bancos de semillas en las regiones mediterráneas presentan rasgos particulares que los distinguen de bancos de otras regiones del mundo. El banco de semillas es concentración de propágulos viables enterrados en el suelo por períodos variables de tiempo. Los bancos de semillas del matorral de Chile central son principalmente transitorios y funcionalmente semejantes a los bancos presentes en otros ecosistemas mediterráneos no perturbados por fuego, a excepción de Australia. El banco transitorio es aquel formado por semillas que permanecen viables en los horizontes superiores del suelo por no más de 1 año después de la dispersión. En el matorral de Chile central, en los horizontes superiores del suelo, se encuentra una de las densidades de semillas de hierbas más altas de las regiones mediterráneas. Una gran proporción de esta reserva está constituida por semillas sin latencia, fácilmente germinables, especialmente pastos anuales que germinan en otoño. Con respecto a los mecanismos de latencia de las semillas del banco transitorio responsables del almacenamiento de las semillas en el suelo, nuestra revisión bibliográfica reveló los siguientes principales síndromes de germinación: (1 especies con semillas que deben ser estratificadas en frío debido a la presencia de latencia fisiológica (principalmente hierbas introducidas; (2 especies con semillas que deben ser escarificadas con ácidos o procedimientos mecánicos debido a la presencia de latencia física (principalmente especies leñosas nativas; (3 especies con latencia fisiológica que necesitan de estratificación cálida para activar la germinación (hierbas nativas e introducidas. Estos síndromes provocan que la época de germinación en Chile central esté situada entre otoño e inicio de la primavera. Además, no hay referencias sobre la presencia de algún síndrome esporádico de germinación para los componentes de un banco de semillas permanente. Proponemos

System Engineering Analysis For Improved Scout Business Information Systems

Energy Technology Data Exchange (ETDEWEB)

Van Slyke, D. A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

2017-01-30

The project uses system engineering principles to address the need of Boy Scout leaders for an integrated system to facilitate advancement and awards records, leader training and planning for meetings and activities. Existing products to address needs of Scout leaders and relevant stakeholders function to support record keeping and some communication functions but opportunity exists for a better system to fully integrate these functions with training delivery and recording, activity planning along with feedback and information gathering from stakeholders. Key stakeholders for the sytem include Scouts and their families, leaders, training providers, sellers of supplies and awards, content generators and facilities that serve Scout activities. Key performance parameters for the system are protection of personal information, availability of current information, information accuracy and information content that has depth. Implementation concepts considered for the system include (1) owned and operated by Boy Scouts of America, (2) Contracted out to a vendor (3) distributed system that functions with BSA managed interfaces. The selected concept is to contract out to a vendor to maximize the likelihood of successful integration and take advantage of the best technology. Development of requirements considers three key use cases (1) System facilitates planning a hike with training needed satisfied in advance and advancement recording real time (2) Scheduling and documenting in-person training, (3) Family interested in Scouting receives information and can request follow-up. Non-functional requirements are analyzed with the Quality Function Deployment tool. Requirement addressing frequency of backup, compatibility with legacy and new technology, language support, software update are developed to address system reliability and intuitive interface. System functions analyzed include update of activity database, maintenance of advancement status, archive of documents, and

The role of water radicals in thermorestoration of bacterial spores

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Friedman, Y S; Grecz, N [Illinois Inst. of Tech., Chicago (USA). Dept. of Biology

1974-01-01

Fully hydrated bacterial spores exposed to 0.45 Mrad showed a characteristic pattern of survival associated with thermorestoration. When temperature during radiation was controlled at -15/sup 0/ to +120/sup 0/C, the lowest viable cell counts were at 0/sup 0/C. Above 0/sup 0/C radiosurvival gradually increased by 2 to 3 log cycles reaching peak at 75/sup 0/C (Bacillus cereus T heat sensitive spores) and at 95/sup 0/C (B.stearothermophilus, heat resistant spores). Simultaneously high survival was observed in the solidly frozen state at -15/sup 0/C to -5/sup 0/C since harmful radicals produced by radiation were trapped in ice. Radiation modifying effects, i.e., protection by 2M ethanol (a scavenger of OH radicals) and sensitization by 1M sodium nitrate (a scavenger of H radicals and hydrated electrons), were studied. The results with ethanol and nitrate confirm the idea that in aqueous sytems below 50/sup 0/C the lethal action is due to oxidizing OH radicals known to attack cell DNA. However, the reversal of scavenger actions above 50/sup 0/C indicates that at those high temperatures lethal effects may also involve the reducing H and esub(aq), which at lower temperatures appear not to affect spore survival though they are known to attack proteins. In this case, it is proposed that radiation inactivation of spores at temperatures below 50/sup 0/C is due to DNA damage inflicted by OH radicals whereas spore death above 50/sup 0/C seems to involve protein /enzyme/ inactivation due to a combined action of heat plus reducing (H, esub(aq)) as well as oxidizing (OH) radical species. From the practical point of view it is important that normally radioprotective effects of such substances as ethanol or ground beef are progressively lost when radiation is carried out at temperatures above 50/sup 0/C.

A Multi-Purpose Data Dissemination Infrastructure for the Marine-Earth Observations

Science.gov (United States)

Hanafusa, Y.; Saito, H.; Kayo, M.; Suzuki, H.

2015-12-01

To open the data from a variety of observations, the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) has developed a multi-purpose data dissemination infrastructure. Although many observations have been made in the earth science, all the data are not opened completely. We think data centers may provide researchers with a universal data dissemination service which can handle various kinds of observation data with little effort. For this purpose JAMSTEC Data Management Office has developed the "Information Catalog Infrastructure System (Catalog System)". This is a kind of catalog management system which can create, renew and delete catalogs (= databases) and has following features, - The Catalog System does not depend on data types or granularity of data records. - By registering a new metadata schema to the system, a new database can be created on the same system without sytem modification. - As web pages are defined by the cascading style sheets, databases have different look and feel, and operability. - The Catalog System provides databases with basic search tools; search by text, selection from a category tree, and selection from a time line chart. - For domestic users it creates the Japanese and English pages at the same time and has dictionary to control terminology and proper noun. As of August 2015 JAMSTEC operates 7 databases on the Catalog System. We expect to transfer existing databases to this system, or create new databases on it. In comparison with a dedicated database developed for the specific dataset, the Catalog System is suitable for the dissemination of small datasets, with minimum cost. Metadata held in the catalogs may be transfered to other metadata schema to exchange global databases or portals. Examples: JAMSTEC Data Catalog: http://www.godac.jamstec.go.jp/catalog/data_catalog/metadataList?lang=enJAMSTEC Document Catalog: http://www.godac.jamstec.go.jp/catalog/doc_catalog/metadataList?lang=en&tab=categoryResearch Information

SU-F-J-129: Verification of Geometric and Dosimetric Accuracy of Respiratory Management Systems Using Homemade Phantom

Energy Technology Data Exchange (ETDEWEB)

Goksel, E; Kucucuk, H; Senkesen, O [Acibadem Kozyatgi Hospital, Istanbul (Turkey); Tezcanli, E [Acibadem University, Istanbul (Turkey)

2016-06-15

Purpose: Different placements of Infrared Cameras (IRC) in CT and treatment rooms can cause gating window level (GWL) variations leading to differences between GWL used for planning and treatments. Although, Varian Clinac DHX-OBI sytem and CT are equipped with the same kind of IRC, Truebeam STx (TB) has a different type of IRC known as banana type. In this study; geometric and dosimetric accuracy of respiratory management system (RPM) for different machines were investigated with a special homemade phantom. Methods: Special phantom was placed on the respiratory simulator machine and a CT data set was obtained at the end of the expirium phase (EOE). Conformal and IMRT plans were generated on the EOE CT image series for both DHX-OBI and TB LINACs while a VMAT plan was generated only for TB.The acquired respiratory graphs in the CT were directly sent to DHX-OBI system, and they were converted with software before sending to TB. EBT3 films were placed inside the phantom and were irradiated using RPM system with two machines for different plans. Planar dose distributions were compared with gamma analysis (GA) method (3mm, %3) to evaluate planned-measured dose differences. In addition, radio-opac marker was placed in the center of the phantom to evaluate the geometric accuracy of treatment field with gated flouroscopy (GF). Results: There were no shifts detected between planning and treeatment GWL for both DHX-OBI and TB. Difference on the GF image between digital graticule and radio-opac marker was <1mm for TB and 1mm for DHX-OBI. Although, GA agreement was 97% for conformal and IMRT techniques in TB, it was 96% for VMAT technique. While GA agreement was 98% for conformal technique in DHX-OBI, IMRT was 95%.ConclusionThis study showed that RPM can be used accurately in spite of different IRC placements or different types of ICR used.

In vitro antibacterial activity of adhesive systems on Streptococcus mutans.

Science.gov (United States)

Paradella, Thaís Cachuté; Koga-Ito, Cristiane Yumi; Jorge, Antonio Olavo Cardoso

2009-04-01

To evaluate the antibacterial activity of three adhesive systems -- Prime & Bond 2.1 (PB), Clearfil SE Bond (CS) and One Up Bond F (OU) -- on Streptococcus mutans in vitro. Adherence and agar disk-diffusion tests were performed. For the adherence testing, 40 human enamel specimens (4 mm2) were sterilized and the adhesive sytems were applied (n = 10). The control group did not receive the application of any adhesive system. Specimens were immersed in brain heart infusion broth (BHI) inoculated with S. mutans standardized suspension (10(6) cells/ml) for 48 h at 37 degrees C and 5% CO2. The number of S. mutans cells adhered to each specimen was evaluated by the plating method on BHI agar. For agar disk-diffusion testing, adhesive disks and disks soaked in distilled water (negative control) or 0.2% chlorexidine (positive control) were incubated with S. mutans for 48 h. The diameters of the zones of bacterial inhibition were measured. Adherence data were transformed in logarithms of base 10 (log10). Data were submitted to Kruskal-Wallis and Student-Neuman-Keuls tests at the 5% level of significance. The results of the adherence test showed that One Up Bond F (OU) and Clearfil SE Bond (CS) did not differ significantly from one another, but allowed significantly less adherence than Prime & Bond 2.1 (PB) and control [mean log10 (standard deviation) values: PB 6.10 (0.19); CS primer 4.55 (0.98); OU 4.65 (0.54); control group 6.34 (0.27)]. The disk-diffusion test showed no significant difference between OU (diameter in mm: 3.02 +/- 0.13) and CS (3.0 +/- 0.12), but both were significantly more effective in inhibiting bacterial growth than PB (1.0 +/- 0.10). The self-etching systems Clearfil SE Bond and One Up Bond F presented a greater inhibitory effect against S. mutans, also in terms of adherence, than did the conventional system, Prime & Bond 2.1.

A new kind of relativity: Compensated delays as phenomenal blind spots.

Science.gov (United States)

Vrobel, Susie

2015-12-01

The French phenomenologist Merleau-Ponty identified the human body as the blind spot of perception and cognition. Being situated in its environment both spatially and temporally, the body forms a primordial field of presence, which is transparent from the obserpant's(1) perspective and therefore creates a sytemic blindness. This paper is primarily concerned with what Merleau-Ponty calls the pulse of the duration of the body, which, in his view, "impregnates" our perception. This notion of duration will be described in terms of the temporal extensions of an embodied obserpant. For biological systems, these extensions may be measured in the obserpant's temporal endo-sphere, a time cone, which extends in two dimensions: succession and simultaneity (Δtlength and Δtdepth, respectively). Obserpants are described not as having, but being a model of the world (including themselves). The perception of Δtlength and Δtdepth results in a fractal temporal structure, which correlates with successive and instantaneous perception. This temporal structure becomes important during temporal recalibration, i.e. delay compensation. During such processes, the distribution of the temporal dimensions succession and simultaneity may vary from one obserpant's Now to another's. Furthermore, recalibration provides a window in which the obserpant's Now may be tipped towards either temporal dimension. We can measure the difference between obserpant A's temporal extension and that of obserpant B in Δtlength and Δtdepth. The complexity of an obserpant's temporal perspective - his temporal interface - can thus be compared and quantified by the size of his time cone. The units of this measurement are the number of compensated and uncompensated delays. During temporal recalibration, an obserpant can turn succession into simultaneity and vice-versa. Moreover, what is successive in obserpant A's Now may be simultaneous for obserpant B and vice-versa. This discrepancy can be modelled as time