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Sample records for becke line

  1. Ulrich Beck

    DEFF Research Database (Denmark)

    Sørensen, Mads P.; Christiansen, Allan

    Since the 1980s, Ulrich Beck has worked extensively on his theories of second modernity and the risk society. The book Ulrich Beck provides an extensive and thorough introduction to the German sociologist’s collected works. The book covers his sociology of work, his theories of individualization......, globalization and subpolitics, his world famous theory of the risk society and second modernity as well as his latest work on cosmopolitanism. Focusing on the theory outlined in Beck’s chief work, Risk Society, and on his theory of second modernity, the book explains the sociologist’s ideas and writing...

  2. Intersecções: De Beck a ... Beck.

    OpenAIRE

    Cardoso, Francisco

    1995-01-01

    Aaron Beck é um dos pioneiros da psicoterapia cognitiva, realçando-se a sua especial importância no domínio do estudo e intervenção cognitivo-comportamental da depressão. Apresenta-se a sua proposta de ligação entre a depressão com a organização da personalidade, de autonomia versus sociotropa, para o entendimento e intervenção psicoterapêutica.

  3. Kuu plaat : Beck "Guero". Plaadid kauplusest Lasering

    Index Scriptorium Estoniae

    2005-01-01

    Heliplaatidest: Beck "Guero", Common "Be", Stupid F ja Hash "Koodeks: R.L.V.", Kulo "Onarhia", Natalie Imbruglia "Counting Down the Days", New Order "Waiting for the Sirens' Call", Human Ground "Human Ground"

  4. Aaron Temkin Beck (born July 18, 1921- Biography

    Directory of Open Access Journals (Sweden)

    K. Fatih Yavuz

    2012-07-01

    Full Text Available he American Academy of Arts and Sciences in 2007. Beck is noted for his research in psychotherapy, psychopathology, suicide, and psychometrics, which led to his creation of cognitive therapy, for which he received the 2006 Lasker-DeBakey Clinical Medical Research Award, and the Beck Depression Inventory (BDI, one of the most widely used instruments for measuring depression severity. Beck is also known for his creation of the Beck Hopelessness Scale and the Beck Anxiety Inventory, and has founded the Beck Institute in Philadelphia, Pennsylvania, in which his daughter, Dr. Judith Beck, works. He is married with four children, Roy, Judy, Dan, and Alice. He has eight grandchildren.the American Academy of Arts and Sciences in 2007. Beck is noted for his research in psychotherapy, psychopathology, suicide, and psychometrics, which led to his creation of cognitive therapy, for which he received the 2006 Lasker-DeBakey Clinical Medical Research Award, and the Beck Depression Inventory (BDI, one of the most widely used instruments for measuring depression severity. Beck is also known for his creation of the Beck Hopelessness Scale and the Beck Anxiety Inventory, and has founded the Beck Institute in Philadelphia, Pennsylvania, in which his daughter, Dr. Judith Beck, works. He is married with four children, Roy, Judy, Dan, and Alice. He has eight grandchildren.

  5. Erich Beck şi Bucovina

    Directory of Open Access Journals (Sweden)

    Mihai Iacobescu

    2006-11-01

    Full Text Available L'historien de Suceava, Mihai Iacobescu réalise avec sensibilité et talent, dans la première partie de l'étude ci-jointe un portrait authentique de l'érudit Erich Beck, mettant en évidence sa personnalité et son envergure intellectuelle. L'évocation de la dimension culturelle de la biographie de l'érudit allemand, complétée par la perspective nostalgique et les accents anecdotiques est occasionnée par la cérémonie dans laquelle l'Université "Etienne Le Grand" de Suceava a accordé à Monsieur Erich Beck le titre de Doctor Honoris Causa, le 22 novembre 2003. La seconde partie de l'article comprend une synthèse de Laudatio soutenue à cette occasion-là. La présentation des contributions de Erich Beck détermine l'historien Mihai Iacobescu à caractériser l'érudit allemand comme "vraiment le Patriarche de la bibliographie de la Bucovine", et ses volumes bibliographiques comme un "monolithe (… durable".

  6. Some psychometric characteristics of the Beck's Hopelessness Scale

    Directory of Open Access Journals (Sweden)

    Novović Zdenka

    2005-01-01

    Full Text Available The study tested reliability and construct validity of Serbian translation of Beck's Hopelessness scale on a sample of patients diagnosed as a depressive, anxious and anxious-depressive disorder. Scale was found to have a high degree of internal consistency (Cronbach alpha = 0.91. Principal component analysis, with Scree-test as the criterion of extraction, provided single factor as the best solution. Hopelessness Scale highly correlated with symptoms of depression, low self-concept and depressive automatic thoughts which the authors interpreted as the confirmation of Beck's theory. The hypothesis that hopelessness is construct specific to depression and not to anxiety is, also, confirmed.

  7. The prevalence of mycotoxins in Kashin-Beck disease

    OpenAIRE

    Haubruge, Eric; Chasseur, Camille; Debouck, Catherine; Rooze, Marcel; Begaux, Françoise; Suetens, Carl; Mathieu, Françoise; Michel, Valérie; Gaspar, Charles; Nolard, Nicole; Lognay, Georges

    2001-01-01

    Mycotoxins are naturally occurring toxic chemical compounds produced by fungi infesting agricultural crops both during their growth and storage. Such secondary metabolites, when ingested, can produce toxic syndromes in humans. As it has been suggested that mycotoxins might be involved in the development of Kashin-Beck disease (KBD), we undertook a survey of barley grains of KBD-affected families and non-affected families in that country. We found, by thin layer chromatography, a hitherto unkn...

  8. Nano and viscoelastic Beck's column on elastic foundation

    CERN Document Server

    Atanackovic, Teodor M; Zorica, Dusan

    2014-01-01

    Beck's type column on Winkler type foundation is the subject of the present analysis. Instead of the Bernoulli-Euler model describing the rod, two generalized models will be adopted: Eringen non-local model corresponding to nano-rods and viscoelastic model of fractional Kelvin-Voigt type. The analysis shows that for nano-rod, the Herrmann-Smith paradox holds while for viscoelastic rod it does not.

  9. Cognitiva (TC de Beck en una muestra costarricense

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    Hannia Cabezas Pizarro

    2006-01-01

    Full Text Available En este estudio se explora una posible relación empírica entre la terapia racional emotivoconductual (TREC de Ellis y la terapia cognitiva (TC de Beck, dos de los modelos más conspicuos en el campo de la psicoterapia cognitiva actual. Si bien este modelo utiliza el término “cognitivo” en forma tal que se encuentra asociado con el afecto, la fisiología y la conducta (Dobson, 1986, sostiene que las perturbaciones emocionales, en esencia, son causadas por el proceso cognitivo del individuo. En esta investigación, se trabajó con una muestra de 200 estudiantes de la Universidad de Costa Rica de diferentes áreas a quienes se les aplicaron las escalas de: Attitudes and Beliefs Inventory (ABI [Escala de Actitudes y Creencias], y el Beck Depression Inventory, 2ª edición (BDI-II [Inventario de Depresión de Beck], escalas que fueron adaptadas al español. El análisis estadístico de los datos confirma empíricamente la relación entre ambos modelos.

  10. Cross-cultural examination of measurement invariance of the Beck Depression Inventory-II.

    Science.gov (United States)

    Dere, Jessica; Watters, Carolyn A; Yu, Stephanie Chee-Min; Bagby, R Michael; Ryder, Andrew G; Harkness, Kate L

    2015-03-01

    Given substantial rates of major depressive disorder among college and university students, as well as the growing cultural diversity on many campuses, establishing the cross-cultural validity of relevant assessment tools is important. In the current investigation, we examined the Beck Depression Inventory-Second Edition (BDI-II; Beck, Steer, & Brown, 1996) among Chinese-heritage (n = 933) and European-heritage (n = 933) undergraduates in North America. The investigation integrated 3 distinct lines of inquiry: (a) the literature on cultural variation in depressive symptom reporting between people of Chinese and Western heritage; (b) recent developments regarding the factor structure of the BDI-II; and (c) the application of advanced statistical techniques to the issue of cross-cultural measurement invariance. A bifactor model was found to represent the optimal factor structure of the BDI-II. Multigroup confirmatory factor analysis showed that the BDI-II had strong measurement invariance across both culture and gender. In group comparisons with latent and observed variables, Chinese-heritage students scored higher than European-heritage students on cognitive symptoms of depression. This finding deviates from the commonly held view that those of Chinese heritage somatize depression. These findings hold implications for the study and use of the BDI-II, highlight the value of advanced statistical techniques such as multigroup confirmatory factor analysis, and offer methodological lessons for cross-cultural psychopathology research more broadly.

  11. Ulrich Beck : ostmine võib olla sama mõjus poliitiline osalusvorm kui valimaskäimine / Ulrich Beck ; interv. Indrek Ibrus

    Index Scriptorium Estoniae

    Beck, Ulrich

    2005-01-01

    Sotsioloog on seisukohal, et tänapäeval, kus teadusest ja majandusest on kujunenud poliitika, saab erasektorit ja teadlasi mõjutada tarbijakäitumise ning riikidevahelise koostöö suurendamisega. Lisa: Ulrich Beck

  12. Use of the Beck Anxiety and Depression Inventories for Primary Care with Medical Outpatients.

    Science.gov (United States)

    Beck, Aaron T.; Steer, Robert A.; Ball, Roberta; Ciervo, Carman A.; Kabat, Mark

    1997-01-01

    The effectiveness of the Beck Anxiety and Beck Depression Inventories for Primary Care for discriminating 56 primary care patients with and without diagnosed anxiety and mood disorders. Use of these instruments to screen primary care patients before conducting extensive diagnostic evaluations with them is discussed. (SLD)

  13. Consistencia interna y estructura factorial de la Escala de Desesperanza de Beck en estudiantes mexicanos

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    Martha Córdova Osnaya

    2011-12-01

    Full Text Available Internal consistency and factorial structure of the Beck Hopelessness Scale among Mexican students The Beck Hopelessness Scale was applied in a sample of 971 male and female students, chosen at random sampling from Mexico City, with an average age of 16.75 years. Results were compared to those reported by Beck, Weissman, Lester and Trexler (1974. Results showed adequate reliability (≥ 0.70 in the total sample by gender. Factorial structure matched only in the Affective factor as reported by Beck et al. (1974 with respect to the total sample. Differences in saturation and factorial structure in both sexes were observed. It was concluded that the factor structure of Beck Hopelessness Scale registers different factor structure in the total sample, according to sex.

  14. [Gunnar Meyer. "Besitzende Bürger" und "Elende Sieche". Lübecks Gesellschaft im Spiegel ihrer Testamente 1400-1449] / Dennis Hortmuth

    Index Scriptorium Estoniae

    Hormuth, Dennis

    2012-01-01

    Arvustus: Gunnar Meyer. "Besitzende Bürger" und "Elende Sieche". Lübecks Gesellschaft im Spiegel ihrer Testamente 1400-1449. (Verhöffentlichungen zur Geschichte der Hansestadt Lübeck. B. 48). (Lübeck, 2010)

  15. Profiling modern risks. An appraisal of the works of bauman, beck, castel, giddens and baudrillard

    Directory of Open Access Journals (Sweden)

    Korstanje Maximiliano

    2010-12-01

    Full Text Available Undoubtedly, the fear can be seen a grounding emotion broadly studied by psychology, sociology and anthropology for many years. Every end of millennium represents for human beings a new embodiment of their beliefs, their production, forms of consumption and even their hierarchical lines of authority. As privileged witnesses of the starting of a new millennium, one might realize how the sentiment of unprotection has been disseminated as a virus world-wide. Ranging from appalling events such as 11/09 towards the Swine Flu recently appeared in Mexico, the perception of lay-people of what is or not dangerous seem to be changed for-ever. Under such a context, the present theoretical manuscript explores the connection of risk and fear at the time it delves into the main contributions and limitations of Jean Baudrillard, Anthony Giddens, Robert Castel, Ulrich Beck and Zygmunt Bauman. From different angles, every-one of cited scholars will give to reader an insight view of the role played by risk and fear in our modern society.

  16. Psychometric Properties of the Beck Scale for Depression (Beck Depression Inventory BDI-II)--A Study on a Sample of Students in the State of Kuwait Universities

    Science.gov (United States)

    Dahem, Ahmed Mohammed Faleh

    2016-01-01

    The study aimed to identify the psychometric properties of the Beck Depression Inventory (BDI-II) the Arabized version by Gharib (2000); the study sample consisted of 500 male and female students from the Kuwaiti universities by 250 males and 250 females on whom the BDI-II scale was applied twice; the psychometric characteristics such as the…

  17. LINES

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    Minas Bakalchev

    2015-10-01

    Full Text Available The perception of elements in a system often creates their interdependence, interconditionality, and suppression. The lines from a basic geometrical element have become the model of a reductive world based on isolation according to certain criteria such as function, structure, and social organization. Their traces are experienced in the contemporary world as fragments or ruins of a system of domination of an assumed hierarchical unity. How can one release oneself from such dependence or determinism? How can the lines become less “systematic” and forms more autonomous, and less reductive? How is a form released from modernistic determinism on the new controversial ground? How can these elements or forms of representation become forms of action in the present complex world? In this paper, the meaning of lines through the ideas of Le Corbusier, Leonidov, Picasso, and Hitchcock is presented. Spatial research was made through a series of examples arising from the projects of the architectural studio “Residential Transformations”, which was a backbone for mapping the possibilities ranging from playfulness to exactness, as tactics of transformation in the different contexts of the contemporary world.

  18. Validity study of the Beck Anxiety Inventory (Portuguese version by the Rasch Rating Scale model

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    Sónia Quintão

    2013-01-01

    Full Text Available Our objective was to conduct a validation study of the Portuguese version of the Beck Anxiety Inventory (BAI by means of the Rasch Rating Scale Model, and then compare it with the most used scales of anxiety in Portugal. The sample consisted of 1,160 adults (427 men and 733 women, aged 18-82 years old (M=33.39; SD=11.85. Instruments were Beck Anxiety Inventory, State-Trait Anxiety Inventory and Zung Self-Rating Anxiety Scale. It was found that Beck Anxiety Inventory's system of four categories, the data-model fit, and people reliability were adequate. The measure can be considered as unidimensional. Gender and age-related differences were not a threat to the validity. BAI correlated significantly with other anxiety measures. In conclusion, BAI shows good psychometric quality.

  19. [The history of the Institute of Hygiene of the Medical College of Lübeck].

    Science.gov (United States)

    Preuner, R

    1986-05-01

    The "Institute of Hygiene" of the Hanseatic town of Lübeck was founded in 1946 by Prof. Dr. Franz Schültz on account of the then prevailing epidemic situation mainly caused by the rapid spread of typhoid fever. The local responsibility of the Institute extended to the town itself and to the two hospitals "South" and "East", with the latter originating from the asylum of Strecknitz after its tragic destruction. In 1950 Franz Schütz was appointed ordinary professor and director of the Institute of Hygiene of the University of Göttingen. In Lübeck he was succeeded by Prof. Dr. Hans Schubert, last senior physician of the Institute of Hygiene of the University of Königsberg. He served a very short term in Lübeck, for he died as early as 1951 after seven months' tenure. He was succeeded in office by Prof. Dr. Rudolf Preuner in 1952. During his term of office the ties with the hospitals were severed and the Institute became independent. Endeavors to found a College started in the early sixties. In November 1964 the Medical Academy of Lübeck was created as Second Medical Faculty of the University of Kiel; in 1974 it was converted into the independent Medical College of Lübeck with a presidial constitution. In 1979 Rudolf Preuner retired as professor emeritus. His successor in office was Prof. Dr. Johannes Beckert. In 1985 the College was raised to the Medical University of Lübeck. PMID:3092506

  20. Den sene Derrida, eller: Er Claus Beck-Nielsen et spøgelse?

    DEFF Research Database (Denmark)

    Rösing, Lilian Munk

    2009-01-01

    This article is about hosting the ghost. In Spectres de Marx (1993) Derrida introduces the ghost which seems to condense in one figure the important themes of his late writings: the address, the other, the ethical turn, the event, the mourning, the reality of immateriality, the guest. The article...... turns to the paternal ghost from Shakespeare's Hamlet, as well as to the most ghost-like artist on the Danish contemporary art scene: Claus Beck-Nielsen, who some years ago declared himself dead. Is Claus Beck-Nielsen really a ghost? That is the question....

  1. Psychometric Evaluation of the Beck Anxiety Inventory with Older Medical Patients.

    Science.gov (United States)

    Wetherell, Julie Loebach; Arean, Patricia A.

    1997-01-01

    When 197 disadvantaged older medical patients completed the Beck Anxiety Inventory, the instrument demonstrated high internal consistency and no significant differences by sex or race, suggesting that it is appropriate for use with diverse populations. Total instrument scores correlated negatively with age. (SLD)

  2. Differentiation of Depressive Disorders from Generalized Anxiety by the Beck Depression Inventory.

    Science.gov (United States)

    Steer, Robert A.; And Others

    1986-01-01

    The Beck Depression Inventory was administered to 35 outpatients diagnosed as primary generalized anxiety disorders and 101 outpatients diagnosed as primary major-depression and dysthymic disorders. A backward stepwise-discriminant analysis revealed that Sadness and Loss of Libido were the only two symptoms that meaningfullly distinguished between…

  3. Validating the Beck Depression Inventory-II for Hong Kong Community Adolescents

    Science.gov (United States)

    Byrne, Barbara M.; Stewart, Sunita M.; Lee, Peter W. H.

    2004-01-01

    The primary purpose of this study was to test for the validity of a Chinese version of the Beck Depression Inventory-II (C-BDI-II) for use with Hong Kong community (i.e., nonclinical) adolescents. Based on a randomized triadic split of the data (N = 1460), we conducted exploratory factor analysis on Group1 (n = 486) and confirmatory factor…

  4. Meta-Analysis of the English Version of the Beck Depression Inventory-Second Edition

    Science.gov (United States)

    Erford, Bradley T.; Johnson, Erin; Bardoshi, Gerta

    2016-01-01

    This meta-analysis reviewed 144 studies from 1996 to 2013 using the Beck Depression Inventory-Second Edition. Internal consistency was 0.89 and test-retest reliability 0.75. Convergent comparisons were robust across 43 depression instruments. Structural validity supported both one- and two-factor solutions and diagnostic accuracy varied according…

  5. A Factor Analytic Study of the Beck Depression Inventory for Female College Students.

    Science.gov (United States)

    Hedl, John J., Jr.

    Previous factor studies of the Beck Depression Inventory (BDI) have not analyzed the item data as a function of sex, or reported more than one factor solution. To further study the factor structure of the BDI, items were factor analyzed and multiple solutions were examined for simple structure, parsimony, and psychological meaningfulness. A sample…

  6. Can Beck's Theory of Depression and the Response Style Theory Be Integrated?

    Science.gov (United States)

    Possel, Patrick

    2011-01-01

    There are obvious similarities between the cognitive constructs of A. T. Beck's (1976) cognitive theory and the response style theory (S. Nolen-Hoeksema & J. Morrow, 1991). Different propositions of J. A. Ciesla and J. E. Roberts (2007) and S. Lyubomirsky and S. Nolen-Hoeksema (1993, 1995) concerning associations of 2 response styles, brooding and…

  7. Confirmatory Factor Analysis of the Beck Depression Inventory-II in Bariatric Surgery Candidates

    Science.gov (United States)

    Hall, Brian J.; Hood, Megan M.; Nackers, Lisa M.; Azarbad, Leila; Ivan, Iulia; Corsica, Joyce

    2013-01-01

    Screening for depression is an integral part of psychological evaluations conducted prior to bariatric surgery. The Beck Depression Inventory-II (BDI-II) is the most commonly used measure of depression in these treatment evaluations. The reliability and validity of the BDI-II has not yet been evaluated within bariatric surgery-seeking samples,…

  8. Psychometric Properties of the Beck Depression Inventories When Used with an Elderly Population.

    Science.gov (United States)

    Watkins, Arleen J.; Kligman, Evan

    The Beck Depression Inventory (BDI) is a self-reported inventory tapping current feelings only. A short form was published in 1972 consisting of 13 items from the original BDI, called the BDI-SF. In 1978 the original version was modified to eliminate double negative statements and alternative ways of asking the same question and then referred to…

  9. Measurement Invariance and Latent Mean Differences of the Beck Depression Inventory II across Gender Groups

    Science.gov (United States)

    Wu, Pei-Chen

    2010-01-01

    This study examined measurement invariance (i.e., configural invariance, metric invariance, scalar invariance) of the Chinese version of Beck Depression Inventory II (BDI-II-C) across college males and females and compared gender differences on depression at the latent factor mean level. Two samples composed of 402 male college students and 595…

  10. Longitudinal Stability of the Beck Depression Inventory II: A Latent Trait-State-Occasion Model

    Science.gov (United States)

    Wu, Pei-Chen

    2016-01-01

    In a six-wave longitudinal study with two cohorts (660 adolescents and 630 young adults), this study investigated the longitudinal stability of the Beck Depression Inventory II (BDI-II) using the Trait-State-Occasion (TSO) model. The results revealed that the full TSO model was the best fitting representation of the depression measured by the…

  11. Validation of the Urdu Translation of the Beck Scale for Suicide Ideation

    Science.gov (United States)

    Ayub, Nailah

    2008-01-01

    This study aimed at developing an Urdu version of the Beck Scale for Suicide Ideation (BSI) for use with Pakistani adolescents and young adults. For this purpose, the English BSI was translated into Urdu and tested for psychometric properties. The analyses were carried out with data from a sample of 904 adolescents and young adults from eight…

  12. A counterexample to Beck's conjecture on the discrepancy of three permutations

    CERN Document Server

    Newman, Alantha

    2011-01-01

    Given three permutations on the integers 1 through n, consider the set system consisting of each interval in each of the three permutations. Jozsef Beck conjectured (c. 1987) that the discrepancy of this set system is O(1). We give a counterexample to this conjecture: for any positive integer n = 3^k, we exhibit three permutations whose corresponding set system has discrepancy Omega(log(n)). Our counterexample is based on a simple recursive construction, and our proof of the discrepancy lower bound is by induction. This example also disproves a generalization of Beck's conjecture due to Spencer, Srinivasan and Tetali, who conjectured that a set system corresponding to l permutations has discrepancy O(sqrt(l)).

  13. El legado psicoanalítico en la terapia cognitiva de Aaron Beck

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    Guido Pablo Korman

    2013-12-01

    Full Text Available The psychodynamic model in which Beck was formed tried to include psychoanalysis into the scientific model. This was consistent with the aims of many clinical researchers in the 1950-1960 decades in the United States. This will take him, years later, to develop the cognitive therapy. In this paper we will focus on Beck psychoanalytic training and his firsts publications as a specialist in psychiatry during his hospital practice (at the Austen Riggs Clinic and in the Valley Forge Army Hospital. We will analyze his first hypotheses, trying to trace the evidence of his mode of action as a psychoanalyst. This formation will subsequently lead him to rethink the psychoanalytic theory, a fact that will be the key to explain the features that will adopt cognitive therapy.

  14. Effects of chondroitin sulfate and glucosamine in adult patients with Kaschin-Beck disease

    DEFF Research Database (Denmark)

    Zhang, Ya-xu; Dong, Wei; Liu, Hui;

    2010-01-01

    The purpose is to investigate the effects of chondroitin sulfate and glucosamine on adult patients with Kaschin-Beck disease (KBD). A total of 80 patients, aged over 40 years, were randomized into two groups receiving either 1,600 mg oral mixture of chondroitin sulfate and glucosamine or placebo......). But the overall mean change in joint space was significant between the two groups (P glucosamine might play a protective role in preserving articular cartilage and provide...

  15. Application of the Beck model to stock markets: Value-at-Risk and portfolio risk assessment

    Science.gov (United States)

    Kozaki, M.; Sato, A.-H.

    2008-02-01

    We apply the Beck model, developed for turbulent systems that exhibit scaling properties, to stock markets. Our study reveals that the Beck model elucidates the properties of stock market returns and is applicable to practical use such as the Value-at-Risk estimation and the portfolio analysis. We perform empirical analysis with daily/intraday data of the S&P500 index return and find that the volatility fluctuation of real markets is well-consistent with the assumptions of the Beck model: The volatility fluctuates at a much larger time scale than the return itself and the inverse of variance, or “inverse temperature”, β obeys Γ-distribution. As predicted by the Beck model, the distribution of returns is well-fitted by q-Gaussian distribution of Tsallis statistics. The evaluation method of Value-at-Risk (VaR), one of the most significant indicators in risk management, is studied for q-Gaussian distribution. Our proposed method enables the VaR evaluation in consideration of tail risk, which is underestimated by the variance-covariance method. A framework of portfolio risk assessment under the existence of tail risk is considered. We propose a multi-asset model with a single volatility fluctuation shared by all assets, named the single β model, and empirically examine the agreement between the model and an imaginary portfolio with Dow Jones indices. It turns out that the single β model gives good approximation to portfolios composed of the assets with non-Gaussian and correlated returns.

  16. EFFECT OF SELENIUM ON IMMUNE FUNCTION OF ERYTHROCYTE IN KASHIN-BECK DISEASE

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    Kashin-Beck disease(KBD)is an endemicchronic osteoarthropathy affecting about2.5millionresidents with over30million at risk in China[1].KBD manifests large defor med joins with muscularastrophy.Its major pathology is a chondrocyte nec-rosis in deep zone of growth plates[2].Etiology ofKBDis still not very clear,but it is supposed thatseleniumdeficiency is likely to be a cofactor in itsdevelopment.Seleniumis unevenly distributed onthe surfaceof the earth and consequently the seleniumconcen-tration varies wide...

  17. El legado psicoanalítico en la terapia cognitiva de Aaron Beck

    Directory of Open Access Journals (Sweden)

    Guido Pablo Korman

    2013-01-01

    Full Text Available El psicoanálisis en el que Beck se formó tenía como objetivo incluir al psicoanálisis dentro del modelo científico. Esto era consistente con los intereses de un gran número de investigadores clínicos en los Estados Unidos durante las décadas de 1950 y 1960. Este trayecto intelectual lo llevará, años después, a desarrollar la terapia cognitiva. En este trabajo nos enfocaremos en el entrenamiento psicoanalítico de Beck así como en las primeras publicaciones de éste como especialista en psiquiatría durante su práctica hospitalaria en la Clínica de Austen Riggs y en el Hospital Valley Forge Army. Analizaremos sus primeras hipótesis, intentando rastrear los indicios de su modo de actuar como psicoanalista. Esta misma formación posteriormente lo llevará a un replanteo del modelo psicoanalítico, hecho que será clave para explicar las características que adoptará la terapia cognitiva.

  18. Psychometric properties of the Beck Depression Inventory-II in nonclinical adolescent samples.

    Science.gov (United States)

    Osman, Augustine; Barrios, Francisco X; Gutierrez, Peter M; Williams, John E; Bailey, Jennifer

    2008-01-01

    This study examined the factor structure and psychometric properties of the Beck Depression Inventory-II (BDI-II; A. T. Beck, Steer, & Brown, 1996) in samples of high-school adolescents (N=414; 210 boys and 204 girls, ages 14-18 years). Confirmatory factor analyses provided satisfactory fit estimates for the two- and three-factor oblique solutions reported frequently in the extant literature. The solution to a general factor with domain-specific somatic and cognitive-affective factors was examined as an alternative model to previously established models for the current high-school sample data. Results provided stronger support for the general factor model. Estimates of internal consistency for scores on this instrument were high (coefficient alpha=.92, average interitem correlation=.35). The mean BDI-II total score for the nonclinical samples (M=12.50, SD=10.50) was compared with the mean scores reported for various adolescent normative samples in the extant literature. The BDI-II total score correlated moderately and significantly with scores on self-report measures of hopelessness (r=.63), anxiety (r=.53), and suicide-related behaviors (r=.57), providing support of adequate correlates for the BDI-II. Estimates of known-groups validity were evaluated using data from a small sample of 167 clinical adolescent inpatients. Specific study findings, limitations, and recommendations are discussed. PMID:18161034

  19. EFFECT OF SELENIUM ON IMMUNE FUNCTION OF ERYTHROCYTE IN KASHIN-BECK DISEASE

    Institute of Scientific and Technical Information of China (English)

    Dai Xiaoxia; Xiong Yongmin; Chu Yonglie; Wang Zhilun

    2006-01-01

    Objective To investigate the relationship between erythrocyte immune function and selenium (Se)level. Methods Forty-nine Kashin-Beck patients in endemic area aged 13- 16 years were divided into two groups and were orally given either selenized yeast or sodium selenite to provide 200 μg selenium per day for 12 weeks. Erythrocyte selenium level, glutathione peroxidase activity, the rosette formation rates of red blood cells complement receptor type Ⅰ(CR1), the immune function of red blood cells, and circulating immune complexes(CIC) were determined. Results After supplementing with selenium for 12 weeks, erythrocyte selenium level, glutathione peroxidase activity, the rosette formation rates of red blood cells CR1 were significantly increased. But the difference in rosette formation rates of IC and CIC content was not significant between before and after Se supplementation. Conclusion The increase of the immune function of the erythrocyte by selenium-supplement may be one of the effective mechanisms for the prevention of Kashin-Beck disease.

  20. Self-statements, self-esteem, and locus of control in discriminating college students' scores on the Beck Depression Inventory.

    Science.gov (United States)

    Madonna, S; Philpot, V D

    1996-04-01

    To study the use of the ratio of positive to negative self-statements, locus of control, and self-esteem in discriminating between scores on the Beck Depression Inventory 145 undergraduate college students were administered the Beck Depression Inventory, Automatic Thoughts Questionnaire-Revised, Coopersmith Self-esteem Inventory-Adult Form, and the Rotter Locus of Control scale in their classrooms. A stepwise discriminant analysis indicated that five variables combined to yield a statistically significant discrimination among low, middle, and high scores on the Beck Depression Inventory. The classification analysis indicated that 77.1% (n = 111) of the undergraduate students were correctly classified; 93.2% (82 of 88) were correctly classified as low scorers and 73.3% (18 of 46) were correctly classified as high scorers. PMID:9148311

  1. Teoria da resposta ao item aplicada ao Inventário de Depressão Beck Item response theory applied to the Beck Depression Inventory

    Directory of Open Access Journals (Sweden)

    Stela Maris de Jezus Castro

    2010-09-01

    Full Text Available O Inventário de Depressão Beck (BDI, uma escala que mede o traço latente de intensidade de sintomas depressivos, pode ser avaliado através da Teoria da Resposta ao Item (TRI. Este estudo utilizou o modelo TRI de Resposta Gradual na avaliação da intensidade de sintomas depressivos de 4.025 indivíduos que responderam ao BDI, de modo a explorar eficientemente a informação disponível nos diferentes aspectos possibilitados pelo uso desta metodologia. O ajuste foi efetuado no software PARSCALE. Foram identificados 13 itens do BDI nos quais pelo menos uma categoria de resposta não tinha chance maior que as demais de ser escolhida, de modo que estes itens tiveram de ser recategorizados. Os itens com maior capacidade de discriminação são relativos à tristeza, pessimismo, sentimento de fracasso, insatisfação, auto-aversão, indecisão e dificuldade para trabalhar. Os itens mais graves são aqueles relacionados com perda de peso, retraimento social e idéias suicidas. O grupo dos 202 indivíduos com as maiores intensidades de sintomas depressivos foi composto por 74% de mulheres, e praticamente 84% possuíam diagnóstico de algum transtorno psiquiátrico. Os resultados evidenciam alguns dos inúmeros ganhos advindos da utilização da TRI na análise de traços latentes.The Beck Depression Inventory (BDI, a scale that measures the latent trait intensity of depression symptoms, can be assessed by the Item Response Theory (IRT. This study used the Graded-Response model (GRM to assess the intensity of depressive symptoms in 4,025 individuals who responded to the BDI, in order to efficiently use the information available on different aspects enabled by the use of this methodology. The fit of this model was done in PARSCALE software. We identified 13 items of the BDI in which at least one response category was not more likely than others to be chosen, so that these items had to be categorized again. The items with greater power of

  2. Ontario Hydro`s Sir Adam Beck Pump Generating Station : thrust bearing and runner servomotor rehabilitation

    Energy Technology Data Exchange (ETDEWEB)

    Barbour, J.; Garro, A. [Ontario Hydro, Toronto, ON (Canada)

    1998-12-01

    A study was conducted to examine the reasons for the recurring failure of generator thrust bearings at Ontario Hydro`s Sir Adam Beck Pump Generating Station (Niagara Falls) comprised of six 25 MW Deriaz turbines. The possible causes for the thrust bearing failures were listed and commented upon. The suspected causes include: (1) marginal bearing capacity, (2) shoes not flat, (3) sub standard oil, (4) dirt in bearing, (5) bearing cooling problems. To solve the problem, extra precaution was taken in the assembly of the bearing parts and extra capacity was added to the oil lift system. Following implementation of these measures, the unit has been operating smoothly for 3 years. 3 tabs., 4 figs.

  3. OCCURRENCE CHARACTERISTIC OF KASHIN-BECK DISEASE BASED ON NUCLEAR FAMILY PEDIGREES

    Institute of Scientific and Technical Information of China (English)

    郭雄; 杨亚宁

    2003-01-01

    Objective The occurrence characteristic of Kashin-Beck Disease (KBD) in pedigrees ascertained on the basis of one proband was estimated. Methods A total of 255 individuals in 40 pedigrees were collected from areas in the Shaanxi Province. Results ① Parents and siblings of index cases have a 3-4 times higher risk than a random unrelated individual. The odds ratio for disease is higher in mothers than in fathers of index cases; ② Prevalence in relatives of index cases (Kr=59.2%) greatly exceeds population prevalence (K=17.5%); ③ Kr increases with sibship size; ④ There is no significant difference of Kr for male and female siblings of index cases. Also, population prevalence is not sex-specific. Conclusion In conjunction with environmental agents, genetics may play an important role in KBD etiology.

  4. Arthroscopic Ankle Arthrodesis for Treating Osteoarthritis in a Patient with Kashin-Beck Disease

    Directory of Open Access Journals (Sweden)

    Kenjiro Iwasa

    2014-01-01

    Full Text Available Kashin-Beck disease (KBD is an endemic degenerative osteoarthritis. Death of cartilage and growth plate is the pathologic feature; therefore, KBD involves skeletal deformity and often results in osteoarthritis. Deficiency of selenium, high humic acid levels in water, and fungi on storage gains are considered the cause of KBD. The most frequently involved joints are ankles, knees, wrists, and elbows and symptoms are pain and limited motions of those joints. The main treatments for KBD are rehabilitation and osteotomy to correct the deformities because preventive treatment has not been established. In this report, we present a case of ankle osteoarthritis due to KBD and first describe arthroscopic ankle arthrodesis for treating osteoarthritis of KBD.

  5. Electronic structure of transparent oxides with the Tran-Blaha modified Becke-Johnson potential.

    Science.gov (United States)

    Dixit, H; Saniz, R; Cottenier, S; Lamoen, D; Partoens, B

    2012-05-23

    We present electronic band structures of transparent oxides calculated using the Tran-Blaha modified Becke-Johnson (TB-mBJ) potential. We studied the basic n-type conducting binary oxides In(2)O(3), ZnO, CdO and SnO(2) along with the p-type conducting ternary oxides delafossite CuXO(2) (X=Al, Ga, In) and spinel ZnX(2)O(4) (X=Co, Rh, Ir). The results are presented for calculated band gaps and effective electron masses. We discuss the improvements in the band gap determination using TB-mBJ compared to the standard generalized gradient approximation (GGA) in density functional theory (DFT) and also compare the electronic band structure with available results from the quasiparticle GW method. It is shown that the calculated band gaps compare well with the experimental and GW results, although the electron effective mass is generally overestimated. PMID:22538303

  6. BECK FOUMULA REVISION FOR 222Rn ESCAPE AND WATER CONTENT IN SOIL

    Institute of Scientific and Technical Information of China (English)

    姜让荣; 卢兆伦; 等

    1995-01-01

    This paper points out the limitation of Beck formula and gives a revised formula owing to the water content and 222Rn escape in soil for calculating γ radiation dose rate through the experimental fitting from 576 sets of measured values in Zhejiang Province,When the revised formula is applied to Beijing Municipality,wherer there is a great difference in the meteorology and soil conditions,the calculated average in general is only 3.5% different from that measured;those of every position deviate only2.1% averagely;and their dispersion is in the experimental errors.Therefore,the revised formula possesses a high reliability and a broad suitability,and is an effective method to estimate the γ radiation dose rate onb the land.

  7. Internet Addiction and Beck Depression Inventory in the University Students at a Student Hostel

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    Atilla Senih Mayda 1

    2015-03-01

    Full Text Available Objective: To determine the relationship between internet addiction and depression in students at a student hostel. Methods: The data of this descriptive study was collected with questionnaires applied to 698 of 1000 university students by face to face interview. Data was collected with Beck Depression Inventory and with the interview form that includes 15 questions about sociodemographic characteristics and 7 questions they were prepared using Goldberg’s diagnostic criteria. Results: Among the participants 397 (56,9% were diagnosed as Internet addicts. 61,4% of men and 51,6 %of women were internet addicts and the difference was significant (x²=6.90, p=0.009. Internet addiction was higher in the group over and at the age 19, then the group under 19 years (x2=5.07, p=0,024. 194 (80,5% of 241students they have 18 points and higher by Beck Depression Inventory were in the internet addicts group. Although 203 (44.4% of 457 students they have 17 points and lower were prone to depression. BDI points were higher by the students they had chronic illness and they were to fail. Conclusion: According to BDI, internet addiction is most common by students they are prone to depression. The tendency to depression can be a cause or a consequent of internet addiction. Depression is not only associated with internet addiction. It can be related with chronic illness, losing relatives in the past year, satisfaction by faculty, school failure, and parents to be alive and together. Thus it must be researched if these are independent related with depression.

  8. Cross-Cultural Validation of the Beck Depression Inventory-II across U.S. and Turkish Samples

    Science.gov (United States)

    Canel-Cinarbas, Deniz; Cui, Ying; Lauridsen, Erica

    2011-01-01

    The purpose of this study was to test the Beck Depression Inventory-II (BDI-II) for factorial invariance across Turkish and U.S. college student samples. The results indicated that (a) a two-factor model has an adequate fit for both samples, thus providing evidence of configural invariance, and (b) there is a metric invariance but "no" sufficient…

  9. Analysis of selenium content in hair samples of children in Kaschin-Beck Disease areas in Gansu Province

    Institute of Scientific and Technical Information of China (English)

    康芬艳

    2013-01-01

    Objective To compare selenium content in hair samples of children in Kashin-Beck Disease (KBD) areas and control areas,and to provide academic data for KBD control and prevention.Methods In 2011,Longnan,Qingyang,Dingxi City of KDB areas in Gansu Province were selected as survey point,meanwhile,colleagues of Tianshui City and Lanzhou City were selected as control.

  10. Self-Concepts and Psychological Well-Being Assessed by Beck Youth Inventory among Pupils with Reading Difficulties

    Science.gov (United States)

    Lindeblad, Emma; Svensson, Idor; Gustafson, Stefan

    2016-01-01

    This study investigated the self-image and psychological well-being in 67 children and adolescents age 10-16 years with severe reading difficulties and/or dyslexia. The participants were assessed with Beck Youth Inventory regarding symptoms of depression, anxiety, and negative self-image. The results showed that the participants do not depict…

  11. Psychometric Properties of the Chinese Version of the Beck Depression Inventory-II Using the Rasch Model

    Science.gov (United States)

    Wu, Pei-Chen; Chang, Lily

    2008-01-01

    The authors investigated the Chinese version of the Beck Depression Inventory-II (BDI-II-C; Chinese Behavioral Science Corporation, 2000) within the Rasch framework in terms of dimensionality, item difficulty, and category functioning. Two underlying scale dimensions, relatively high item difficulties, and a need for collapsing 2 response…

  12. The Beck depression inventory as a measure of subjective well-being : A cross-national study

    NARCIS (Netherlands)

    van Hemert, D.A.; van de Vijver, F.J.R.; Poortinga, Y.H.

    2002-01-01

    The present study examined the question whether the Beck Depression Inventory (BDI), which is one of the most widely used instruments to assess depression, can be used to measure differences in subjective well-being at national level. In order to establish the meaning of depression scores at country

  13. Exploring the Old Town School of Folk Music's Beck "Song Reader" Ensemble: An Interview with Nathaniel Braddock

    Science.gov (United States)

    Thibeault, Matthew D.

    2014-01-01

    This column presents an interview with Nathaniel Braddock, who created and teaches an ensemble devoted to Beck's "Song Reader" at the Old Town School of Folk Music in Chicago, Illinois. "Song Reader" is a collection of 20 compositions published as sheet music for musicians to record and release, with over 17,000 versions…

  14. Correlação entre Inventário de Depressão de Beck e cortisol urinário em diabéticos tipo 2 Correlación entre el inventario de Depresión de Beck y el cortisol urinario en diabeticos tipo 2 Correlation between urine cortisol and scores on the Beck Depression inventory in patients with type 2 diabetes

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    Alexandra Bulgarelli do Nascimento

    2009-01-01

    Full Text Available OBJETIVO: Verificar a correlação entre o cortisol urinário e o Inventário de Depressão de Beck em diabéticos do tipo 2. MÉTODOS: O cortisol urinário foi avaliado em uma amostra composta por 40 pacientes da Liga de Controle de Diabetes da Disciplina de Endocrinologia do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo e para a avaliação dos sintomas de depressão foi aplicado o Inventário de Depressão de Beck. RESULTADOS: Alta confiabilidade para o Inventário de Depressão de Beck(Alfa de Cronbach=0,920e correlação significativa foi observada entre cortisol urinário e Inventário de Depressão de Beck(Spearman,r=0.523,pOBJETIVO: Verificar la correlación entre el cortisol urinario y el Inventario de Depresión de Beck en diabéticos del tipo 2. MÉTODOS: El cortisol urinario fue evaluado en una muestra compuesta por 40 pacientes de la Liga de Control de Diabetes de la Disciplina de Endocrinología del Hospital de las Clínicas de la Facultad de Medicina de la Universidad de Sao Paulo y para la evaluación de los síntomas de depresión fue aplicado el Inventario de Depresión de Beck. RESULTADOS: Alta confiabilidad para el Inventario de Depresión de Beck(Alfa de Cronbach=0,920 y correlación significativa observada entre el cortisol urinario e Inventario de Depresión de Beck (Spearman,r=0.523,pOBJECTIVE: To determine the relationship between urinary cortisol and scores on the Beck Depression Inventory in type 2 diabetics. METHODS: The sample consisted of 40 patients with type 2 diabetes from the diabetes control league of the discipline of endocrinology of the HCFM-USP. Measures consisted of urinary cortisol and depression symptoms using the Beck Depression Inventory. RESULTS: The Beck Depression Inventory had a Cronbach's alpha of 0.92. There was a statistically significant correlation between urinary cortisol and scores on the Beck Depression Inventory (Spearman r = 0.52, p < .001. CONCLUSIONS: The

  15. Sub-tangentially loaded and damped Beck's columns on two-parameter elastic foundation

    Science.gov (United States)

    Lee, Jun-Seok; Kim, Nam-Il; Kim, Moon-Young

    2007-10-01

    The dynamic stability of the damped Beck's column on two-parameter elastic foundation is investigated by using Hermitian beam elements. For this purpose, based on the extended Hamilton's principle, the dimensionless finite element (FE) formulation using the Hermitian interpolation function is presented. First, the mass matrix, the external and internal damping matrices, the elastic and the geometric stiffness matrices, Winkler and Pasternak foundation matrices, and the load correction stiffness matrix due to the sub-tangential follower force are obtained. Then, evaluation procedure for the flutter and divergence loads of the non-conservative system and the time history analysis using the Newmark- β method are shortly described. Finally, the influences of various parameters on the dynamic stability of non-conservative systems are newly addressed: (1) variation of the second flutter load due to sub-tangentiality, (2) influences of the external and the internal damping on flutter loads by analysis of complex natural frequencies, (3) the effect of the growth rate of motion in a finite time interval using time history analysis, and (4) fluctuation of divergence and flutter loads due to Winkler and Pasternak foundations.

  16. Psychometric Properties of the Persian Version of the Short Beck Depression Inventory with Iranian Psychiatric Outpatients.

    Science.gov (United States)

    Dadfar, Mahboubeh; Kalibatseva, Zornitsa

    2016-01-01

    The short form of the Beck Depression Inventory (BDI-13) is useful for the screening and assessment of depression in clinical and research settings. The aim of the present study was to investigate the psychometric properties of the Persian (Farsi) version of BDI-13 in an Iranian clinical sample. The sample consisted of 52 Iranian psychiatric outpatients who received services at psychiatric and psychological clinics at the School of Behavioral Sciences & Mental Health-Tehran Institute of Psychiatry, Iran University of Medical Sciences (IUMS) in Tehran, Iran. The study examined the reliability, construct validity, and factor structure of the instrument. The instrument indicated good reliability with Cronbach's alpha of .85 and strong construct validity based on moderate to strong positive correlations with other measures of mental health issues. Using a Principal Component Analysis and Varimax Rotation with Kaiser Normalization, three factors were identified and labeled Affective (F1), Somatic/Vegetative (F2), and Cognitive/Loss of Functioning (F3). The current factor structure suggests that depression is a multidimensional construct in an Iranian clinical sample. This study provides further evidence that the Persian version of the BDI-13 is a psychometrically sound instrument that can be used for clinical and research purposes in Iran. PMID:27293979

  17. Modified Becke-Johnson exchange potential: improved modeling of lead halides for solar cell applications

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    Radi A. Jishi

    2016-01-01

    Full Text Available We report first-principles calculations, within density functional theory, on the lead halide compounds PbCl2, PbBr2, and CH3NH3PbBr3−xClx, taking into account spin-orbit coupling. We show that, when the modified Becke-Johnson exchange potential is used with a suitable choice of defining parameters, excellent agreement between calculations and experiment is obtained. The computational model is then used to study the effect of replacing the methylammonium cation in CH3NH3PbI3 and CH3NH3PbBr3 with either N2H5+or N2H3+, which have slightly smaller ionic radii than methylammonium. We predict that a considerable downshift in the values of the band gaps occurs with this replacement. The resulting compounds would extend optical absorption down to the near-infrared region, creating excellent light harvesters for solar cells.

  18. The latent symptom structure of the Beck depression inventory: second edition in Latina pregnant women.

    Science.gov (United States)

    Alexander, Lisa A; de la Fey Rodríguez Muñoz, Maria; Perry, Deborah F; Le, Huynh-Nhu

    2014-07-01

    Pregnancy represents a unique period of time when women are at an increased risk of developing depression. Although the Beck Depression Inventory-Second Edition (BDI-II) is one of the most widely used self-report measures of depression symptomology, its psychometric properties and underlying factor structures have not been determined for antenatal women and among Latinas. The current study evaluated the latent symptom structure of the BDI-II in a community-based sample of Latina pregnant women (N = 217) identified to be at high risk for depression. Exploratory factor analyses were used to identify underlying salient individual item loadings for two- and three-factor models. Confirmatory factor analyses then examined several different indices to determine the best model fit. Examination of exploratory and confirmatory factor analyses supports a three-factor oblique structure of the BDI-II composed of Cognitive-Affective, Somatic, and Pregnancy Symptoms. The three-factor model provides clinicians with the ability to target specific constellations of depressive symptoms instead of relying on the BDI-II total score that represents the overall severity of depression in this population. PMID:23929560

  19. Does the Beck Cognitive Insight Scale Predict Response to Cognitive Remediation in Schizophrenia?

    Science.gov (United States)

    Harvey, Philippe-Olivier

    2016-01-01

    Cognitive remediation therapy (CRT) has emerged as a viable treatment option for people diagnosed with schizophrenia presenting disabling cognitive deficits. However, it is important to determine which variables can influence response to CRT in order to provide cost-effective treatment. This study's aim was to explore cognitive insight as a potential predictor of cognitive improvement after CRT. Twenty patients with schizophrenia completed a 24-session CRT program involving 18 hours of computer exercises and 6 hours of group discussion to encourage generalization of cognitive training to everyday activities. Pre- and posttest assessments included the CogState Research Battery and the Beck Cognitive Insight Scale (BCIS). Lower self-certainty on the BCIS at baseline was associated with greater improvement in speed of processing (rs = −0.48; p < 0.05) and visual memory (rs = −0.46; p < 0.05). The results of this study point out potential associations between self-certainty and cognitive improvement after CRT, a variable that can easily be measured in clinical settings to help evaluate which patients may benefit most from the intervention. They also underline the need to keep investigating the predictors of good CRT outcomes, which can vary widely between patients. PMID:27516906

  20. Does the Beck Cognitive Insight Scale Predict Response to Cognitive Remediation in Schizophrenia?

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    Audrey Benoit

    2016-01-01

    Full Text Available Cognitive remediation therapy (CRT has emerged as a viable treatment option for people diagnosed with schizophrenia presenting disabling cognitive deficits. However, it is important to determine which variables can influence response to CRT in order to provide cost-effective treatment. This study’s aim was to explore cognitive insight as a potential predictor of cognitive improvement after CRT. Twenty patients with schizophrenia completed a 24-session CRT program involving 18 hours of computer exercises and 6 hours of group discussion to encourage generalization of cognitive training to everyday activities. Pre- and posttest assessments included the CogState Research Battery and the Beck Cognitive Insight Scale (BCIS. Lower self-certainty on the BCIS at baseline was associated with greater improvement in speed of processing (rs=-0.48; p<0.05 and visual memory (rs=-0.46; p<0.05. The results of this study point out potential associations between self-certainty and cognitive improvement after CRT, a variable that can easily be measured in clinical settings to help evaluate which patients may benefit most from the intervention. They also underline the need to keep investigating the predictors of good CRT outcomes, which can vary widely between patients.

  1. A generalized Grubbs-Beck test statistic for detecting multiple potentially influential low outliers in flood series

    Science.gov (United States)

    Cohn, T.A.; England, J.F.; Berenbrock, C.E.; Mason, R.R.; Stedinger, J.R.; Lamontagne, J.R.

    2013-01-01

    he Grubbs-Beck test is recommended by the federal guidelines for detection of low outliers in flood flow frequency computation in the United States. This paper presents a generalization of the Grubbs-Beck test for normal data (similar to the Rosner (1983) test; see also Spencer and McCuen (1996)) that can provide a consistent standard for identifying multiple potentially influential low flows. In cases where low outliers have been identified, they can be represented as “less-than” values, and a frequency distribution can be developed using censored-data statistical techniques, such as the Expected Moments Algorithm. This approach can improve the fit of the right-hand tail of a frequency distribution and provide protection from lack-of-fit due to unimportant but potentially influential low flows (PILFs) in a flood series, thus making the flood frequency analysis procedure more robust.

  2. Prevalence of depression and its associated factors using Beck Depression Inventory among students of a medical college in Karnataka

    OpenAIRE

    Kumar, Ganesh S; Jain, Animesh; Hegde, Supriya

    2012-01-01

    Background and Objective: Depression among medical students is an area of increasing concern worldwide. This study aimed to assess the prevalence of depression and its associated factors among medical students. Materials and Methods: A stratified random sample of 400 students was assessed using Beck Depression Inventory by investigators. Associations between depression and class of studying, social factors like alcohol use, drug addiction, family problems, family history of depression, and st...

  3. Biological reduction of iron to the elemental state from ochre deposits of Skelton Beck in Northeast England

    OpenAIRE

    Rahman, Pattanathu K. S. M.; Bastola, Suvechhya

    2014-01-01

    Ochre, consequence of acid mine drainage (AMD), is iron oxides-rich soil pigments that can be found in the water drainage from historic base metal and coal mines. The anaerobic strains of Geobacter sulfurreducens and Shewanella denitrificans were used for the microbial reduction of iron from samples of ochre collected from Skelton Beck (Saltburn Orange River, NZ 66738 21588) in Northeast England. The aim of the research was to determine the ability of the two anaerobic bacteria to reduce the ...

  4. Biological reduction of iron to the elemental state from ochre deposits of Skelton Beck in Northeast England

    OpenAIRE

    PattanathuK S MRahman

    2014-01-01

    Ochre, consequence of acid mine drainage, is iron oxides-rich soil pigments that can be found in the water drainage from historic base metal and coal mines. The anaerobic strains of Geobacter sulfurreducens and Shewanella denitrificans were used for the microbial reduction of iron from samples of ochre collected from Skelton Beck (Saltburn Orange River, NZ 66738 21588) in Northeast England. The aim of the research was to determine the ability of the two anaerobic bacteria to reduce the iron p...

  5. Dimensional and hierarchical models of depression using the Beck Depression Inventory-II in an Arab college student sample

    OpenAIRE

    Ohaeri Jude U; Al-Turkait Fawziyah A

    2010-01-01

    Abstract Background An understanding of depressive symptomatology from the perspective of confirmatory factor analysis (CFA) could facilitate valid and interpretable comparisons across cultures. The objectives of the study were: (i) using the responses of a sample of Arab college students to the Beck Depression Inventory (BDI-II) in CFA, to compare the "goodness of fit" indices of the original dimensional three-and two-factor first-order models, and their modifications, with the corresponding...

  6. Funcionamento Diferencial do Item no Inventário de Depressão Beck

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    Stela Maris de Jezus Castro

    2015-03-01

    Full Text Available INTRODUÇÃO: Diversos estudos mostram o Funcionamento Diferencial do Item (DIF em itens do Inventário de Depressão Beck (BDI, ao compararem homens e mulheres. A presença de um grande número de itens com DIF no BDI é uma severa ameaça à validade da medida da intensidade de sintomas depressivos obtida pela Teoria da Resposta ao Item (TRI e às conclusões baseadas nos escores derivados dos itens com e sem DIF. OBJETIVO: Os objetivos deste estudo foram identificar esses itens do BDI, ajustar o modelo de TRI para itens constrangedores (modelo 2, o qual acomoda itens com a presença de DIF, e comparar esses resultados com os do ajuste do modelo logístico de dois parâmetros tradicional da TRI (modelo 1. MÉTODOS: Os resultados obtidos com ambos os modelos foram comparados. RESULTADOS: Os itens que apresentaram DIF foram: tristeza, sentimento de fracasso, insatisfações, culpa, punição, choro, fatigabilidade e perda da libido. Os resultados do ajuste dos dois modelos são similares quanto à discriminação, gravidade (à exceção dos itens com DIF e no cálculo de escores para os indivíduos. Apesar disso, o modelo 2 é vantajoso, pois mostra as diferenças em gravidade do sintoma depressivo para os grupos avaliados, trazendo, dessa forma, mais informação ao pesquisador sobre a população estudada. CONCLUSÃO: Esse modelo, que tem um alcance mais amplo em termos de população-alvo, pode ser uma ótima alternativa na identificação e acompanhamento de indivíduos com potencial depressivo.

  7. Disordered glycometabolism involved in pathogenesis of Kashin–Beck disease, an endemic osteoarthritis in China

    Energy Technology Data Exchange (ETDEWEB)

    Wu, Cuiyan, E-mail: xj.cy.69@stu.xjtu.edu.cn [School of Public Health, Health Science Centre of Xi' an Jiaotong University, No. 76 Yanta West Road, Xi' an, Shaanxi 710061 (China); Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education (China); Key Laboratory of Trace elements and Endemic Diseases, Ministry of Health, Xi' an, Shaanxi 710061 (China); Lei, Ronghui, E-mail: leirh@mail.xjtu.edu.cn [School of Public Health, Health Science Centre of Xi' an Jiaotong University, No. 76 Yanta West Road, Xi' an, Shaanxi 710061 (China); Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education (China); Key Laboratory of Trace elements and Endemic Diseases, Ministry of Health, Xi' an, Shaanxi 710061 (China); Tiainen, Mika, E-mail: mika.tiainen@uef.fi [School of Pharmacy, University of Eastern Finland, Kuopio (Finland); Wu, Shixun, E-mail: wushixun313@stu.xjtu.edu.cn [School of Public Health, Health Science Centre of Xi' an Jiaotong University, No. 76 Yanta West Road, Xi' an, Shaanxi 710061 (China); Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education (China); Key Laboratory of Trace elements and Endemic Diseases, Ministry of Health, Xi' an, Shaanxi 710061 (China); Zhang, Qiang, E-mail: wdrr@163.com [Department of Kashin–Beck Disease, Qinghai Institute for Endemic Disease Control and Prevention, Xining, Qinghai 811602 (China); Pei, Fuxing, E-mail: peifuxing@vip.163.com [Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041 (China); Guo, Xiong, E-mail: guox@mail.xjtu.edu.cn [School of Public Health, Health Science Centre of Xi' an Jiaotong University, No. 76 Yanta West Road, Xi' an, Shaanxi 710061 (China); Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education (China); Key Laboratory of Trace elements and Endemic Diseases, Ministry of Health, Xi' an, Shaanxi 710061 (China)

    2014-08-15

    Kashin–Beck disease (KBD) is a chronic endemic osteoarthritis in China. Previous studies have suggested a role of metabolic dysfunction in causation of this disease. In this investigation, the metabolomics approach and cell experiments were used to discover the metabolic changes and their effects on KBD chondrocytes. Nuclear magnetic resonance ({sup 1}H NMR) spectroscopy was used to examine serum samples from both the KBD patients and normal controls. The pattern recognition multivariate analysis (OSC–PLS) and quantitative analysis (QMTLS iterator) revealed altered glycometabolism in KBD, with increased glucose and decreased lactate and citrate levels. IPA biological analysis showed the centric location of glucose in the metabolic network. Massive glycogen deposits in chondrocytes and increased uptake of glucose by chondrocytes further confirmed disordered glycometabolism in KBD. An in vitro study showed the effects of disordered glycometabolism in chondrocytes. When chondrocytes were treated with high glucose, expression of type II collagen and aggrecan were decreased, while TNF-α expression, the level of cellular reactive oxygen species and cell apoptosis rates all were increased. Therefore, our results demonstrated that disordered glycometabolism in patients with KBD was linked to the damage of chondrocytes. This may provide a new basis for understanding the pathogenesis of KBD. - Highlights: • Disordered glycometabolism in KBD was demonstrated by combining serum metabolomics and chondrocyte studies. • Glucose and TNF-α were key molecules linked to altered metabolism and inflammation in the pathophysiology of KBD. • The glycometabolism disorder was linked to expression of type II collagen and aggrecan, ROS and apoptosis of KBD chondrocytes.

  8. Aaron Temkin BECK: After Cricitical Thinking to A Creative Psychotherapy Theory

    Directory of Open Access Journals (Sweden)

    Mehmet DİNÇ

    2012-07-01

    Full Text Available There is growing interest in the cognitive psychotherapy all around the world including Turkey. According to American Institute of Cognitive Therapy; cognitive psychotherapy is the fastest growing and most rigorously studied kind of talk therapy and it is practiced around the world, taking hold in places from the Middle East to Japan. Cognitive psychotherapy was designed first by Aaron Temkin Beck in 1950’s. He has published over 450 articles and authored or co-authored seventeen books and he has been listed as one of the “10 individuals who shaped the face of American Psychiatry” and one of the 5 most influential psychotherapists of all time since then. Beck’s groundbreaking systematic research established for the first time the efficacy of any psychotherapy for the treatment of depression. Moreover he not only developed and tested an effective short-term treatment (cognitive therapy for depression, but he and his former students have successfully adapted cognitive therapy to a wide range of other psychiatric disorders as well. Numerous controlled clinical trials have now demonstrated that cognitive therapy is effective in a variety of psychiatric conditions including depression, bulimia nervosa, hypochondriasis, social phobia, obsessive-compulsive disorder, substance abuse, body dysmorphic disorder, and post-traumatic stress disorder. Therefore knowing the father of cognitive therapy and his journey from 1950’s to 2010’s will help to understand cognitive therapy and its development during these years. This article aims to give an overview of the historical background to contemporary cognitive and cognitive-behavioral approaches to psychotherapy by focusing on Beck’s life, characteristics and works.

  9. Robust flood frequency analysis: Performance of EMA with multiple Grubbs-Beck outlier tests

    Science.gov (United States)

    Lamontagne, J. R.; Stedinger, J. R.; Yu, Xin; Whealton, C. A.; Xu, Ziyao

    2016-04-01

    Flood frequency analysis generally involves the use of simple parametric probability distributions to smooth and extrapolate the information provided by short flood records to estimate extreme flood flow quantiles. Parametric probability distributions can have difficulty simultaneously fitting both the largest and smallest floods. A danger is that the smallest observations in a record can distort the exceedance probabilities assigned to the large floods of interest. The identification and treatment of such Potentially Influential Low Floods (PILFs) frees a fitting algorithm to describe the distribution of the larger observations. This can allow parametric flood frequency analysis to be both efficient, and also robust to deviations from the proposed probability model's lower tail. Historically, PILF identification involved subjective judgement. We propose a new multiple Grubbs-Beck outlier test (MGBT) for objective PILF identification. MGBT PILF identification rates (akin to Type I errors) are reported for the lognormal (LN) distribution and the log-Pearson Type III (LP3) distribution with a variety of skew coefficients. MGBT PILF identification generally matched subjective identification from a recent California flood frequency study. Monte Carlo results show that censoring of PILFs identified by the MGBT algorithm improves the extreme quantile estimator efficiency of the expected moments algorithm (EMA) for negatively skewed LP3 distributions and has little effect for zero or positive skews; simultaneously it protects against deviations from the LP3 in the lower tail, as illustrated by distorted LN examples. Thus, MGBT generally makes flood frequency analysis based on the LP3 distribution with EMA both more accurate and more robust.

  10. Disordered glycometabolism involved in pathogenesis of Kashin–Beck disease, an endemic osteoarthritis in China

    International Nuclear Information System (INIS)

    Kashin–Beck disease (KBD) is a chronic endemic osteoarthritis in China. Previous studies have suggested a role of metabolic dysfunction in causation of this disease. In this investigation, the metabolomics approach and cell experiments were used to discover the metabolic changes and their effects on KBD chondrocytes. Nuclear magnetic resonance (1H NMR) spectroscopy was used to examine serum samples from both the KBD patients and normal controls. The pattern recognition multivariate analysis (OSC–PLS) and quantitative analysis (QMTLS iterator) revealed altered glycometabolism in KBD, with increased glucose and decreased lactate and citrate levels. IPA biological analysis showed the centric location of glucose in the metabolic network. Massive glycogen deposits in chondrocytes and increased uptake of glucose by chondrocytes further confirmed disordered glycometabolism in KBD. An in vitro study showed the effects of disordered glycometabolism in chondrocytes. When chondrocytes were treated with high glucose, expression of type II collagen and aggrecan were decreased, while TNF-α expression, the level of cellular reactive oxygen species and cell apoptosis rates all were increased. Therefore, our results demonstrated that disordered glycometabolism in patients with KBD was linked to the damage of chondrocytes. This may provide a new basis for understanding the pathogenesis of KBD. - Highlights: • Disordered glycometabolism in KBD was demonstrated by combining serum metabolomics and chondrocyte studies. • Glucose and TNF-α were key molecules linked to altered metabolism and inflammation in the pathophysiology of KBD. • The glycometabolism disorder was linked to expression of type II collagen and aggrecan, ROS and apoptosis of KBD chondrocytes

  11. Whole-exome sequencing for the identification of susceptibility genes of Kashin-Beck disease.

    Directory of Open Access Journals (Sweden)

    Zhenxing Yang

    Full Text Available OBJECTIVE: To identify and investigate the susceptibility genes of Kashin-Beck disease (KBD in Chinese population. METHODS: Whole-exome capturing and sequencing technology was used for the detection of genetic variations in 19 individuals from six families with high incidence of KBD. A total of 44 polymorphisms from 41 genes were genotyped from a total of 144 cases and 144 controls by using MassARRAY under the standard protocol from Sequenom. Association was applied on the data by using PLINK1.07. RESULTS: In the sequencing stage, each sample showed approximately 70-fold coverage, thus covering more than 99% of the target regions. Among the single nucleotide polymorphisms (SNPs used in the transmission disequilibrium test, 108 had a p-value of <0.01, whereas 1056 had a p-value of <0.05. Kyoto Encyclopedia of Genes and Genomes(KEGG pathway analysis indicates that these SNPs focus on three major pathways: regulation of actin cytoskeleton, focal adhesion, and metabolic pathways. In the validation stage, single locus effects revealed that two of these polymorphisms (rs7745040 and rs9275295 in the human leukocyte antigen (HLA-DRB1 gene and one polymorphism (rs9473132 in CD2-associated protein (CD2AP gene have a significant statistical association with KBD. CONCLUSIONS: HLA-DRB1 and CD2AP gene were identified to be among the susceptibility genes of KBD, thus supporting the role of the autoimmune response in KBD and the possibility of shared etiology between osteoarthritis, rheumatoid arthritis, and KBD.

  12. Psychometric characteristics of the Beck depression inventory on a Serbian student sample

    Directory of Open Access Journals (Sweden)

    Novović Zdenka

    2011-01-01

    Full Text Available Beck Depression Inventory (BDI is one of the most popular instruments for measuring intensity and symptoms of depression in clinical and general population. The instrument has been translated into many languages and validated in many different cultures, but there is still no published paper on psychometric characteristics and the norms for the BDI in Serbian language. In this paper, we checked psychometric characteristics of the BDI-II on 400 students of the University of Novi Sad, Serbia. Descriptive statistics (M=8.02; SD=7.10, internal consistency (α=.87, and test-retest reliability (.63 are satisfactory and similar to the results of other validation studies. Convergent and divergent validity of the instrument are also supported by moderate to high correlations with the measures of similar phenomena (r=.70 with Depression Symptoms Scale and by low correlations with unrelated constructs (i.e., r=.19 with Impulsive Sensation Seeking Scale. However, the divergent validity is not supported by a high correlation with a measure of anxiety (r=.70, similar finding is commonly obtained in other validation studies. Our results suggest cut-off scores which are similar to those suggested by Canadian authors (Kappa coefficient=.85. Two-factor structure of the inventory is also in concordance with other authors. Cognitive-Affective factor explains 29.27% of the variance and its structure resembles those reported in other analyses. The second extracted factor explains 7.76% of the variance and is saturated mostly with somatic items; however, a significant contribution of some cognitive items has led us to identify the factor as Exhaustion, specific to our student sample. The two-factor solution is confirmed by Confirmatory Factor Analyses once the item related to sexual difficulties was eliminated. General conclusion is that BDI-II has satisfactory psychometric characteristics and can reliably be used with Serbian student population.

  13. Hair Selenium Levels of School Children in Kashin-Beck Disease Endemic Areas in Tibet, China.

    Science.gov (United States)

    Chen, Zhuo; Li, Hairong; Yang, Linsheng; Wang, Wuyi; Li, Yonghua; Gong, Hongqiang; Guo, Min; Nima, Cangjue; Zhao, Shengcheng; Wang, Jing; Ye, Bixiong; Danzeng, Sangbu; Deji, Yangzong

    2015-11-01

    Previous studies have shown that the selenium (Se) deficiency is an important factor for the etiology of Kashin-Beck disease (KBD). Although KBD is presently controlled in most regions of China, it is still active in the Tibetan Plateau. The present study aimed to assess the nutritional status of selenium in school children by using the Se level in hair as a biomarker in KBD endemic areas of Lhasa in Tibet, China. Hair samples of 155 school children aged 6-15 years were collected in both KBD areas and non-KBD areas of Lhasa in 2013. The Se level in the hair samples was determined by inductive coupled plasma mass spectrometry (ICP-MS). The average concentration of Se in children's hair was 0.232 μg/g in KBD areas of Lhasa, which was significantly higher than the data reported decades ago. A significant difference in hair Se was observed between the boys (0.255 μg/g) and the girls (0.222 μg/g) in the studied KBD areas (P hair Se did not vary by age or region. School children in KBD endemic areas in Lhasa likely have improved Se status as a result of high Se content staple food substitution with the enforcement of Free Education Policy and Nutrition Improvement Plan in Tibet. Nevertheless, there were still 20.3 % of students with low Se status (hair Se <0.20 μg/g), which showed that Se status of school children was also partly affected by low Se environment in KBD endemic areas of Lhasa.

  14. THE PROSPECTIVE STUDY OF RELATIONSHIP BETWEEN LOW SELENIUM AND KASHIN-BECK DISEASE

    Institute of Scientific and Technical Information of China (English)

    1999-01-01

    The relationship of cause-result between low selenium (Se) and Kashin-Beck disease (KBD) was probed by the prospective study of epidemiological method with regarding low-Se as an exposure factor in this paper. 597 healthy children lived in KBD areas with low, middle and high prevalence were divided into the low-Se exposed group and the non-low-Se exposed group according to their Se content in hair. The low-Se exposed group was divided into three subgroups, such as Se content in hair≤110 ng/g, 110 ng/g<Se content in hair≤150 ng/g and 150 ng/g<Se content in hair≤200 ng/g, respectively. Six new cases of the total with KBD (incidence was 0.574% person-year) were found in the low-Se exposed group during three years period of the investigation. No new case was found in the non low-Se exposed group . KBD incidence was not significantly different between those two groups. Two new cases were found in children with Se content in hair kept below 110 ng/g during three years (incidence: 1.21% person-year). SMR in each group indicated that the new cases observed in the low-Se exposed group was remarkable lower than the new cases expected. It was not observed that the dose-response relationship between low-Se and KBD, and was not supported that the low-Se was a predominant factor to cause KBD.

  15. Criterion Validity, Severity Cut Scores, and Test-Retest Reliability of the Beck Depression Inventory-II in a University Counseling Center Sample

    Science.gov (United States)

    Sprinkle, Stephen D.; Lurie, Daphne; Insko, Stephanie L.; Atkinson, George; Jones, George L.; Logan, Arthur R.; Bissada, Nancy N.

    2002-01-01

    The criterion validity of the Beck Depression Inventory-II (BDI-II; A. T. Beck, R. A. Steer, & G. K. Brown, 1996) was investigated by pairing blind BDI-II administrations with the major depressive episode portion of the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I; M. B. First, R. L. Spitzer, M. Gibbon, & J. B. W. Williams,…

  16. The Beck Depression Inventory Second Edition (BDI-II): psychometric properties in Icelandic student and patient populations.

    Science.gov (United States)

    Arnarson, Thornorethur Orn; Olason, Daníel Thorn; Smári, Jakob; Sigurethsson, Jón Friethrik

    2008-01-01

    The Beck Depression Inventory (BDI) is one of the most widely used self-report measures of depression in both research and clinical practice. The Beck Depression Inventory Second Edition (BDI-II) is the most recent version of the BDI. The objective of the present study was to assess the psychometric foundations of the Icelandic translation of the BDI-II, adding to its international knowledge base. Participants were in total 1454, 1206 students and 248 outpatient-clinic patients. All students completed the BDI-II and a subgroup (n=142) completed additional measures of anxiety and depression. The Mini-International Psychiatric Interview (MINI) and the BDI-II were administrated to the patients. Convergent and divergent validity of the BDI-II were supported. It discriminated satisfactorily between patients diagnosed and those not diagnosed with major depression. Confirmatory factor analyses revealed small differences between various factor models of the BDI-II, derived from previous studies. However, a model of three first-order factors (cognitive-affective-somatic) and one second-order factor (general depression) offered an acceptable description of the item covariance structure for the BDI-II in both samples. It is concluded that the psychometric properties of the Icelandic version of the BDI-II are supported in patient and student populations. PMID:18752106

  17. STUDIES ON BLOOD GLUTATHIONE PEROXIDASE PROTEIN LEVEL OF CHILDREN IN KESHAN DISEASE AND KASHIN-BECK DISEASE AREAS

    Institute of Scientific and Technical Information of China (English)

    谭武红; 种晓红; 杨占田; 翟连榜; 王立新; 徐光禄

    2002-01-01

    Objective To oberve the change in blood glutathione peroxidase (GSH-Px) protein levels of residents in the low-selenium (Se) area by contrasting the blood GSH-Px protein level of the children in the Keshan disease area with those in the Kashin-Beck disease and non-endemic areas. Methods GSH-Px protein levels were measured by enzyme-linked immunosorbent assays (ELISA). The Se content and GSH-Px activity were assayed by the 2,3-diaminonaphthalene spectrofluorimetric method and glutathione reductase-coupled method respectively. Results ①The blood Se content and GSH-Px protein level of children in Keshan disease area (Moding) were significantly lower than those in Xi'an non-endemic area, however, there was no significant difference when compared with the low-Se non-endemic area; ②The blood Se content, GSH-Px activity and GSH-Px protein level of children in the Kashin-Beck disease area (Yulin) were significantly lower than those of children in two non-endemic areas and in the Keshan disease area; ③The blood Se content and GSH-Px activity were positively correlated to the GSH-Px protein level respectively. Conclusion These results indicate that the blood GSH-Px protein level is decreased in the low-Se residents. The Se status not only affects the GSH-Px activity but also regulate the GSH-Px protein level.

  18. Inventário de Depressão de Beck - BDI: validação fatorial para mulheres com câncer Beck Depression Inventory - BDI: factorial analysis for women with cancer

    Directory of Open Access Journals (Sweden)

    Rita de Cássia Gandini

    2007-06-01

    Full Text Available Este estudo teve por objetivo validar fatorialmente o Inventário de Depressão de Beck - BDI para uma amostra de 208 mulheres com câncer. A validação fatorial do BDI foi realizada por meio da análise fatorial, método de extração dos componentes principais e rotação oblimin, tendo sido identificadas duas soluções fatoriais, uma bifatorial - sendo F1 composto por 8 itens (a = 0,82 denominado "visão negativa de si mesmo", explicando 32,4% da variância e F2 com 5 itens (a = 0,77 denominado "função física", explicando 8% da variância - e outra unifatorial com 13 itens, com fidedignidade altamente satisfatória (a = 0,86 denominada "depressão", explicando 38% da variância total.This study refers to the factor analysis of the Beck Depression Inventory - BDI in a population composed by 208 women with cancer. The extraction method was principal components and the rotation procedure was oblimin. The BDI factorial analysis was done through the oblimin rotation, finding two solutions possibilities. One with two factors solution - the first one with 8 items (a = 0,82, called "negative view of self", explaining 32,4% of the variance and the second factor with 5 items (a = 0,77, called "physical function", explaining 8% of the variance - and other with one factor solution with 13 items, with really satisfactory reliability of 0,86, called "depression" and explaining 38% of the total variance.

  19. O velho mundo novo do trabalho: concepção e abordagem em Ulrick Beck e Zygmunt Bauman

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    Luiz Carlos Chaves

    2006-01-01

    Full Text Available Este artigo tem por finalidade apresentar considerações delineadas por Beck e Bauman sobre o mundo do trabalho, problematizando as concepções e possibilidades apontadas por ambos. A hipótese de partida centra-se no argumento de que as constantes mudanças percebidas no mundo do trabalho, neste momento, ocorrem em decorrência de processos societais pretéritos e não propriamente em decorrência da vontade dos indivíduos. Entretanto, para se pensar a relação entre o mundo do trabalho e o indivíduo, na pós-modernidade, é imprescindível a leitura histórica dos aspectos sociais, psicológicos e fisiológicos do trabalho.

  20. [Antjekathrin Grassmann. Zu den wirtschaftlichen und persönlichen Beziehungen Lübecks ins Baltikum im Lichte einer unbeachteten mittelalterlichen Quellegruppe]/ Dennis Hortmuth

    Index Scriptorium Estoniae

    Hormuth, Dennis

    2012-01-01

    Arvustus: Antjekathrin Grassmann. Zu den wirtschaftlichen und persönlichen Beziehungen Lübecks ins Baltikum im Lichte einer unbeachteten mittelalterlichen Quellegruppe. In: Leder ist Brot. Beiträge zur norddeutschen Landes- und Archivgeseten. Schwerin 2011. S. 125-135

  1. Is the beck anxiety inventory a good tool to assess the severity of anxiety? A primary care study in The Netherlands study of depression and anxiety (NESDA)

    NARCIS (Netherlands)

    Muntingh, Anna D. T.; van der Feltz-Cornelis, Christina M.; van Marwijk, Harm W. J.; Spinhoven, Philip; Penninx, Brenda W. J. H.; van Balkom, Anton J. L. M.

    2011-01-01

    Background: Appropriate management of anxiety disorders in primary care requires clinical assessment and monitoring of the severity of the anxiety. This study focuses on the Beck Anxiety Inventory (BAI) as a severity indicator for anxiety in primary care patients with different anxiety disorders (so

  2. [Concurrent validation of the suicidal risk assessment scale (R.S.D.) with the Beck's suicidal ideation scale].

    Science.gov (United States)

    Ducher, J-L; Daléry, J

    2004-01-01

    The prevention of suicide is a top priority in mental health. The determination of high risk suicidal groups is not sufficient. The expressing suicidal ideas is not a protective factor, but in contrary a risk factor to take into account, or even to search and to quantify: 80% of the subjects who attempt to commit suicide or commit suicide express such ideas months before. Several evaluation instruments try to help the practitioners or the research workers in this reasoning. The suicidal risk assessment scale RSD can be cited in particular. It is composed of eleven sections. The 0 level corresponds to the absence of particular ideas of death or suicide. Levels 1 and 2, the presence of ideas of death. Levels 3-4-5, the presence of suicidal ideas. The difference compared to the majority of the other scales consecrated to the same subject, the passif desire of death, occupies a place totally particular in the RSD (level 6). From the level 7, the risk of acting out seems to become more important. It stops being a simple idea of suicide, but becomes a real will of dying, firstly retained by something or someone (level 7), the fear of causing suffering to dear ones or a religious belief., then determined (level 8). Finally, the patient has elaborated a concrete plan (level 9) or he has already started the preparation of acting out (level 10). It is just necessary to evaluate and to note the highest level of the scale. The inclusion of the suicidal risk assessment scale RSD and of the Suicidal Ideation Scale by Beck in an international multicenters, phase IV, double-blind study, according to two parallel groups, with a fixed dose of fluoxétine or fluvoxamine for six weeks, allowed to search correlations which could exist between the two scales. The ana-lysis before the beginning of the treatment was done on 108 outpatients depressive, male and female, aged 18 or over. It finds a satisfactory concurrent validity between the suicidal risk assessment scale RSD and the

  3. Electronic structure engineering of ZnO with the modified Becke-Johnson exchange versus the classical correlation potential approaches

    KAUST Repository

    Ul Haq, Bakhtiar

    2013-12-01

    In this study, we report investigations of structural and electronic properties of ZnO in wurtzite (WZ), rock salt (RS) and zinc-blende (ZB) phases. Calculations have been done with full-potential linearized augmented plane wave plus local orbital method developed within the frame work of Density Functional Theory (DFT). For structural properties investigations, Perdew and Wang proposed local density approximations (LDA) and Perdew et al. proposed generalized gradient approximations (GGA) have been applied. Where for electronic properties in addition to these, Tran-Blaha modified Becke-Johnson (mBJ) potential has been used. Our computed band gap values of ZnO in WZ and ZB phases with mBJ potential are significantly improved compared to those with LDA and GGA; however, in RS phase, energy gap is significantly overestimated compared to experimental measurements. The Zn-d band was found to be more narrower with mBJ potential than that of LDA and GGA. On the other hand, our evaluated crystal field splitting energy values overestimate the experimental values. © 2013 Taylor and Francis.

  4. Factor structure of the Beck Depression Inventory-Second Edition (BDI-II) with Puerto Rican elderly.

    Science.gov (United States)

    Rodríguez-Gómez, José R; Dávila-Martínez, Mariel G; Collazo-Rodríguez, Luis C

    2006-06-01

    The Beck Depression Inventory-Second Edition (BDI-II; (1) is one of the most useful measures for depressive symptomatology in many countries (2). The psychometric properties of this inventory, however, have not been reported with Puerto Rican elderly. This paper reports, exploratory psychometric results with a sample of 410 elderly Puerto Rican (65 years and older; men=94, women=316). The assessment of the construct validity of the BDI-II yielded four factors accounting for 52% of total variance and an internal reliability coefficient (alpha Cronbach) of .89. A factor analysis with the 21 items of the BDI-II was performed using principal component analysis as the extraction method and Varimax rotation. This analysis revealed that the BDI-II was a good measure of the dimensions of depressive symptomatology in the present sample, which resembled prior findings reported with the general Puerto Rican Population (3). This study also reports further data supporting the reliability, validity, and practical utility of the BDI-II for the Puerto Rican population including elders. Implications for potential research with minorities and clinical uses of the BDI-II are also discussed.

  5. The structural, electronic and optical response of IIA-VIA compounds through the modified Becke-Johnson potential

    Science.gov (United States)

    Ali, Roshan; Mohammad, S.; Ullah, Hamid; Khan, S. A.; Uddin, H.; Khan, M.; Khan, N. U.

    2013-02-01

    The structural, electronic and optical properties of IIA-VIA compounds are performed, by using the full-potential linearized augmented plan wave (FP-LAPW) method within DFT, by using the (PBEsol-GGA 2008) version. We have compared the modified Becke-Johnson (mBJ) potential to LDA, GGA and EV-GGA approximations. The IIA-VIA compounds have rock salt structure (B1) and zinc-blend structure (B3). The results obtained for band structure using mBJ show a significant improvement over previous theoretical work and give closer values to the experimental results. The bandgaps less than 3.1 eV are used in the visible light devices applications, while those with bandgaps bigger than 3.1 eV, used in UV devices applications. Optical parameters, like the dielectric constant, refractive indices, reflectivity, optical conductivity and absorption coefficient are calculated and analyzed. Refractive index lesser than unity (vg=c/n) shows that the group velocity of the incident radiation is greater than the speed of light.

  6. Expression profile analysis of mycotoxin-related genes in cartilage with endemic osteochondropathy kashin-beck disease

    Directory of Open Access Journals (Sweden)

    Zhang Feng

    2012-07-01

    Full Text Available Abstract Background Kashin-Beck Disease (KBD is an endemic osteochondropathy. Mycotoxins are believed to play an important role in the pathogenesis of KBD. Because the molecular mechanism of mycotoxin-induced cartilage lesions remains unclear, there is not effective treatment for KBD now. To identify key genes involved in the mycotoxin-induced cartilage lesions, we compared the expression profiles of mycotoxin-related genes (MRG between KBD cartilage and healthy cartilage. Methods Total RNA was isolated from cartilage samples, following by being amplified, labeled and hybridized to Agilent human whole genome microarray chip. qRT-PCR was conducted to validate the microarray data. 1,167 MRG were derived from the environmentally related genomic database Toxicogenomics. The microarray data of MRG was subjected to single gene and gene ontology (GO expression analysis for identifying differently expressed genes and GO. Results We identified 7 up-regulated MRG and 2 down-regulated MRG in KBD cartilage, involved in collagen, apoptosis, metabolism and growth & development. GO expression analysis found that 4 apoptosis-related GO and 5 growth & development-related GO were significantly up-regulated in KBD cartilage. Conclusions Based on the results of previous and our studies, we suggest that mycotoxins might contribute to the development of KBD through dysfunction of MRG involved in collagen, apoptosis and growth & development in cartilage.

  7. Exploring Genome-wide DNA Methylation Profiles Altered in Kashin-Beck Disease Using Infinium Human Methylation 450 Bead Chips.

    Science.gov (United States)

    Shi, Xiao Wei; Shi, Bo Hui; Lyu, Ai Li; Zhang, Feng; Zhou, Tian Tian; Guo, Xiong

    2016-07-01

    To understand how differentially methylated genes (DMGs) might affect the pathogenesis of Kashin-Beck disease (KBD). Genome-wide methylation profiling of whole blood from 12 matched KBD and controls pairs was performed using a high-resolution Infinium 450 K methylation array. In total, 97 CpG sites were differentially methylated in KBD compared to the normal controls; of these sites, 36 sites were significantly hypermethylated (covering 22 genes) and 61 sites were significantly hypomethylated (covering 34 genes). Of these genes, 14 significant pathways were identified, the most significant P value pathway was type I diabetes mellitus pathway and pathways associated with autoimmune diseases and inflammatory diseases were included in this study. Subsequently, 4 CpG sites in HLA-DRB1 were validated using bisulfite sequencing polymerase chain reaction (BSP) in articular cartilage, and the results showed significant differences in the methylation status between KBD and controls, consistent with the results of the high-resolution array. These results suggested that differences in genome-wide DNA methylation exist between KBD and the controls, and the biological pathways support the autoimmune disease and inflammatory disease hypothesis of KBD.

  8. Exploring Genome-wide DNA Methylation Profiles Altered in Kashin-Beck Disease Using Infinium Human Methylation 450 Bead Chips.

    Science.gov (United States)

    Shi, Xiao Wei; Shi, Bo Hui; Lyu, Ai Li; Zhang, Feng; Zhou, Tian Tian; Guo, Xiong

    2016-07-01

    To understand how differentially methylated genes (DMGs) might affect the pathogenesis of Kashin-Beck disease (KBD). Genome-wide methylation profiling of whole blood from 12 matched KBD and controls pairs was performed using a high-resolution Infinium 450 K methylation array. In total, 97 CpG sites were differentially methylated in KBD compared to the normal controls; of these sites, 36 sites were significantly hypermethylated (covering 22 genes) and 61 sites were significantly hypomethylated (covering 34 genes). Of these genes, 14 significant pathways were identified, the most significant P value pathway was type I diabetes mellitus pathway and pathways associated with autoimmune diseases and inflammatory diseases were included in this study. Subsequently, 4 CpG sites in HLA-DRB1 were validated using bisulfite sequencing polymerase chain reaction (BSP) in articular cartilage, and the results showed significant differences in the methylation status between KBD and controls, consistent with the results of the high-resolution array. These results suggested that differences in genome-wide DNA methylation exist between KBD and the controls, and the biological pathways support the autoimmune disease and inflammatory disease hypothesis of KBD. PMID:27554126

  9. Electronic structure engineering of ZnO with the modified Becke-Johnson exchange versus the classical correlation potential approaches

    Science.gov (United States)

    Haq, Bakhtiar Ul; Ahmed, R.; Goumri-Said, Souraya; Shaari, A.; Afaq, A.

    2013-12-01

    In this study, we report investigations of structural and electronic properties of ZnO in wurtzite (WZ), rock salt (RS) and zinc-blende (ZB) phases. Calculations have been done with full-potential linearized augmented plane wave plus local orbital method developed within the frame work of Density Functional Theory (DFT). For structural properties investigations, Perdew and Wang proposed local density approximations (LDA) and Perdew et al. proposed generalized gradient approximations (GGA) have been applied. Where for electronic properties in addition to these, Tran-Blaha modified Becke-Johnson (mBJ) potential has been used. Our computed band gap values of ZnO in WZ and ZB phases with mBJ potential are significantly improved compared to those with LDA and GGA; however, in RS phase, energy gap is significantly overestimated compared to experimental measurements. The Zn-d band was found to be more narrower with mBJ potential than that of LDA and GGA. On the other hand, our evaluated crystal field splitting energy values overestimate the experimental values.

  10. Optical response of mixed molybdenum dichalcogenides for solar cell applications using the modified Becke-Johnson potential

    Energy Technology Data Exchange (ETDEWEB)

    Ahuja, Ushma [Sardar Patel College of Engineering, Mumbai (India). Dept. of Electrical Engineering; Joshi, Ritu; Venugopalan, K. [M.L. Sukhadia Univ., Udaipur (India). Dept. of Physics; Kothari, D.C. [Mumbai Univ. (India). National Center for Nanosciences and Nanotechnology; Tiwari, Harpal [Malaviya National Institute of Technology, Jaipur (India). Dept. of Electrical Engineering

    2016-07-01

    Energy bands and density of states (DOS) of mixed molybdenum dichalcogenides like MoS{sub 2}, MoSeS, MoSe{sub 2}, MoTe{sub 2}, MoTeS, and MoTe{sub 0.5}S{sub 1.5} are reported for the first time using the Tran-Blaha modified Becke-Johnson potential within full potential-linearised augmented plane wave technique. From the partial DOS, a strong hybridisation between the Mo-d and chalcogen-p states is observed below the Fermi energy E{sub F}. In addition, the dielectric constants, absorption coefficients, and refractivity spectra of these compounds have also been deduced. The integrated absorption coefficients derived from the frequency-dependent absorption spectra within the energy range of 0-4.5 eV show a possibility of using molybdenum dichalcogenides, particularly MoTe{sub 0.5}S{sub 1.5}, in solar cell applications. Birefringence and degree of anisotropy are also discussed using the data on refractivity and imaginary components of the dielectric constant.

  11. Proposal for a short version of the Beck Hopelessness Scale based on a national representative survey in Hungary.

    Science.gov (United States)

    Perczel Forintos, Dóra; Rózsa, Sándor; Pilling, János; Kopp, Mária

    2013-12-01

    In our study we assessed the frequency of reported hopelessness and suicide attempts in the national representative survey Hungarostudy 2002. The randomly selected sample consisted of 14,000 individuals over the age of 18. We created a short version of the widely used Beck Hopelessness Scale for screening purposes in suicide prevention. The short version of the BHS consists of four items and has high internal consistency (Cronbach's alpha = 0.85). Moreover, we conducted an investigation into psychological, somatic, sociological and socio-economic as well as cultural variables that show a positive or negative correlation with hopelessness and important predictors of suicide. The following psychological variables showing a positive correlation with hopelessness were identified: dysfunctional attitudes, exhaustion, psychological distress, hostility, lack of life goals and inability to cope emotionally. Sense of coherence, social support, perceived self-efficiency, subjective well-being and problem-solving coping showed a negative correlation with hopelessness. Concerning the relationship between hopelessness and suicide attempts, we found that participants who attempted suicide in the last year scored higher (mean = 4.86) than participants who attempted suicide more than 3 years ago (mean = 3.57). These results indicate that applying the short version of the BHS could be very useful in general practice and in psychiatric care. PMID:23756722

  12. Optical response of mixed molybdenum dichalcogenides for solar cell applications using the modified Becke-Johnson potential

    International Nuclear Information System (INIS)

    Energy bands and density of states (DOS) of mixed molybdenum dichalcogenides like MoS2, MoSeS, MoSe2, MoTe2, MoTeS, and MoTe0.5S1.5 are reported for the first time using the Tran-Blaha modified Becke-Johnson potential within full potential-linearised augmented plane wave technique. From the partial DOS, a strong hybridisation between the Mo-d and chalcogen-p states is observed below the Fermi energy EF. In addition, the dielectric constants, absorption coefficients, and refractivity spectra of these compounds have also been deduced. The integrated absorption coefficients derived from the frequency-dependent absorption spectra within the energy range of 0-4.5 eV show a possibility of using molybdenum dichalcogenides, particularly MoTe0.5S1.5, in solar cell applications. Birefringence and degree of anisotropy are also discussed using the data on refractivity and imaginary components of the dielectric constant.

  13. Relationship between selenium concentration in child hair and the distribution of Kashin-Beck Disease in Tibet,China

    Institute of Scientific and Technical Information of China (English)

    LI Shunjiang; YANG Linsheng; WANG Wuyi; LI Yonghua; LI Hairong; XIRAO Ruodeng

    2007-01-01

    The focus of this study is to determine the relationship between selenium(Se)concentrations in child hair and the distribution of Kashin-Beck disease(KBD)in Tibet.The hair of children in typical KBD-affected areas and non-disease areas was collected,and its Se concentrations were measured by atomic fluorescent spectrometry.The Se concentrations in child hair were (0.13±0.04)and (0.1 8±0.07)μg/g respectively in KBD areas and non-disease areas respectively,which are significantly difierent.In areas supplemented with Se in Tibet,the Se concentration of hair in KBD-affected areas was higher than that in non-diseased areas,being(0.28±0.03)and(0.18±0.04)μg/g respectively.There is a close relationship between the Se concentrations in hair and KBD distribution.Se supplement increase the Se concentrations in the human body.Appropriate Se supplementation is important to prevent KBD in Tibet.

  14. Optical Response of Mixed Molybdenum Dichalcogenides for Solar Cell Applications Using the Modified Becke-Johnson Potential

    Science.gov (United States)

    Ahuja, Ushma; Joshi, Ritu; Kothari, D. C.; Tiwari, Harpal; Venugopalan, K.

    2016-03-01

    Energy bands and density of states (DOS) of mixed molybdenum dichalcogenides like MoS2, MoSeS, MoSe2, MoTe2, MoTeS, and MoTe0.5S1.5 are reported for the first time using the Tran-Blaha modified Becke-Johnson potential within full potential-linearised augmented plane wave technique. From the partial DOS, a strong hybridisation between the Mo-d and chalcogen-p states is observed below the Fermi energy EF. In addition, the dielectric constants, absorption coefficients, and refractivity spectra of these compounds have also been deduced. The integrated absorption coefficients derived from the frequency-dependent absorption spectra within the energy range of 0-4.5 eV show a possibility of using molybdenum dichalcogenides, particularly MoTe0.5S1.5, in solar cell applications. Birefringence and degree of anisotropy are also discussed using the data on refractivity and imaginary components of the dielectric constant.

  15. Biological reduction of iron to the elemental state from ochre deposits of Skelton Beck in Northeast England

    Directory of Open Access Journals (Sweden)

    Pattanathu K S M Rahman

    2014-06-01

    Full Text Available Ochre, consequence of acid mine drainage, is iron oxides-rich soil pigments that can be found in the water drainage from historic base metal and coal mines. The anaerobic strains of Geobacter sulfurreducens and Shewanella denitrificans were used for the microbial reduction of iron from samples of ochre collected from Skelton Beck (Saltburn Orange River, NZ 66738 21588 in Northeast England. The aim of the research was to determine the ability of the two anaerobic bacteria to reduce the iron present in ochre and to determine the rate of the reduction process. The physico-chemical changes in the ochre sample after the microbial reduction process were observed by the production of zero-valent iron which was later confirmed by the detection of elemental Fe in XRD spectrum. The XRF results revealed that 69.16% and 84.82% of iron oxide can be reduced using G. sulfurreducens and S. denitrificans respectively after 8 days of incubation. These results could provide the basis for the development of a biohydrometallurgical process for the production of elemental iron from ochre sediments.

  16. Sintomas depressivos no câncer de mama: Inventário de Depressão de Beck - Short Form Depressive symptoms in breast cancer: Beck Depression Inventory - Short Form

    Directory of Open Access Journals (Sweden)

    Renata de Oliveira Cangussu

    2010-01-01

    Full Text Available OBJETIVOS: Verificar a prevalência de sintomas depressivos em mulheres com câncer de mama e identificar os fatores de risco associados à sua ocorrência. MÉTODOS: Foi realizado um estudo transversal, em que foram entrevistadas 71 mulheres com câncer de mama. Foram empregados dois instrumentos: um questionário para verificar os dados sociodemográficos e clínicos e o Inventário de Depressão de Beck - Short Form (BDI-SF, para avaliação dos sintomas depressivos. Para análise dos dados, utilizaram-se medidas descritivas e o teste de qui-quadrado, que avaliou a associação entre variáveis sociodemográficas e clínicas e os sintomas depressivos. O nível de significância considerado foi de 5%. RESULTADOS: A prevalência de sintomas depressivos foi de 29,6%. Os fatores associados à presença desses sintomas foram o tratamento quimioterápico (p = 0,021, presença de dor (p = 0,018 e limitação do movimento do membro superior (p = 0,010 e pior percepção da saúde (p = 0,018. CONCLUSÃO: Sintomas depressivos são frequentes no câncer de mama, assim a saúde mental das mulheres com esse tipo de câncer deve ser investigada e tratada quando necessário, reduzindo o impacto desses sintomas na vida da mulher.OBJECTIVES: To verify the prevalence of depressive symptoms in women with breast cancer and identify risk factors associated to its occurrence. METHODS: It was a transversal study where 71 women with breast cancer were interviewed. Two instruments were applied, being one questionnaire used to verify sociodemographic and clinical data, and the Beck Depression Inventory - Short Form to evaluate depressive symptoms. Descriptive methods and chi-square test were utilized to analyze data, evaluating association between depressive symptoms, sociodemographic and clinical data. Significance level was considered of 5%. RESULTS: Depressive symptoms prevalence was 29,6%. Factors associated to the presence of this kind of symptoms were

  17. Validação da bateria "Beck" de testes de habilidades para atletas brasileiros de "rugby" em cadeira de rodas Validation of beck battery of skills tests to Brazilian players of wheelchair rugby

    Directory of Open Access Journals (Sweden)

    José Irineu Gorla

    2011-09-01

    Full Text Available O "Rugby" em Cadeira de Rodas é uma modalidade praticada por sujeitos com tetraplegia ou tetra-equivalência, desde 2005 no Brasil, onde existem aproximadamente 10 equipes em atividade. A avaliação motora é um dos meios de controle do treinamento que possibilita conquistar avanços no planejamento. A bateria "Beck" de testes de habilidades (manejo de bola, precisão de passes, bloqueio, velocidade e passes de longa distância para atletas da modalidade foi desenvolvida nos EUA por Yilla e Sherrill (1998. O objetivo deste estudo foi analisar os critérios de autenticidade científica da bateria para a população de atletas brasileiros. Os resultados de duas avaliações com a bateria (teste e re-teste realizadas com 11 atletas (média de idade 27,59 ± 5,37 anos, tempo de lesão 8,19 ± 3,83 anos, foram registrados por três avaliadores, o que possibilitou a análise de objetividade, fidedignidade e consistência interna. Foram utilizadas as ferramentas ANOVA para análise de objetividade e, coeficiente de correlação intraclasse e teste t para análise de fidedignidade e consistência. Não foram encontradas diferenças entre os resultados dos diferentes avaliadores (valores de p variando de 0,45 a 1,00 e os valores de correlação intraclasse encontrados (variação de r de 0,78 a 0,99 permitem concluir que a bateria é consistente e fidedigna. Os resultados encontrados neste estudo são evidências de que os critérios de autenticidade científica para a bateria são satisfeitos e a bateria pode ser considerada um instrumento válido para avaliação motora de atletas brasileiros de "rugby" em cadeira de rodas.The Wheelchair Rugby is a sport practiced by subjects with tetraplegia or tetra-equivalence, since 2005 in Brazil, where there are approximately 10 teams in business. The motricity evaluation is a means of training control that allows achieve real progress in planning. The BECK battery of skills tests (ball handling, precision

  18. Comparison of mineral intake between children from endemic and non-endemic areas for Kashin-Beck disease in Tibet Autonomous Region: Pilote study

    OpenAIRE

    Dermience, Michael; Maesen, Philippe; Mathieu, Françoise; De Maertelaer, Viviane; Lognay, Georges

    2012-01-01

    Background The Kashin-Beck disease (KBD) is an endemic and chronic osteochondropathy affecting between 0.74 million and 2.5 million people in the Tibet Autonomous Region and in several provinces of the People’s Republic of China. The etiology remains unclear, although a multifactorial hypothesis has been proposed (selenium/iodine deficiency; high concentration of organic matters in drinking water; and mycotoxin poisoning by fungi infecting cereals). The rural population is almost exclusive...

  19. Pretreatment Beck Depression Inventory score is an important predictor for Post-treatment score in infertile patients: a before-after study

    OpenAIRE

    Ramezanzadeh Fatemeh; Aghahosseini Marzieh; Alleyassin Ashraf; Khademi Afsaneh; Abhari Ali

    2005-01-01

    Abstract Background The experience of infertility can be extremely stressful. Some of the risk factors for depression in infertility are being female, repeated unsuccessful treatment cycles or a 2 to 3 year history of infertility, low socioeconomic status, foreign nationality, lack of partner support, life events and previous depression. In this study, we analyzed the Beck Depression Inventory score at the beginning and the end of infertility treatment, to determine which factors may influenc...

  20. Is the beck anxiety inventory a good tool to assess the severity of anxiety? A primary care study in the Netherlands Study of Depression and Anxiety (NESDA)

    OpenAIRE

    van der Feltz-Cornelis Christina M; Muntingh Anna DT; van Marwijk Harm WJ; Spinhoven Philip; Penninx Brenda WJH; van Balkom Anton JLM

    2011-01-01

    Abstract Background Appropriate management of anxiety disorders in primary care requires clinical assessment and monitoring of the severity of the anxiety. This study focuses on the Beck Anxiety Inventory (BAI) as a severity indicator for anxiety in primary care patients with different anxiety disorders (social phobia, panic disorder with or without agoraphobia, agoraphobia or generalized anxiety disorder), depressive disorders or no disorder (controls). Methods Participants were 1601 primary...

  1. Depressive Symptoms in People with and without Alcohol Abuse: Factor Structure and Measurement Invariance of the Beck Depression Inventory (BDI-II) Across Groups

    OpenAIRE

    Cecilie Skule; Pål Ulleberg; Hilde Dallavara Lending; Torkil Berge; Jens Egeland; Tim Brennen; Nils Inge Landrø

    2014-01-01

    This study explored differences in the factor structure of depressive symptoms in patients with and without alcohol abuse, and differences in the severity of depressive symptoms between the two groups. In a sample of 358 patients without alcohol problems and 167 patients with comorbid alcohol problems, confirmatory factor analysis revealed that the same factor structures, Beck et al.'s two-factor Somatic Affective-Cognitive (SA-C) model, and Buckley et al.'s three-factor Cognitive-Affective- ...

  2. Optoelectronic and thermoelectric properties of Zintl YLi3 A 2 (A = Sb, Bi) compounds through modified Becke-Johnson potential

    Science.gov (United States)

    Seddik, T.; Uğur, G.; Khenata, R.; Uğur, Ş.; Soyalp, F.; Murtaza, G.; Rai, D. P.; Bouhemadou, A.; Omran, S. Bin

    2016-10-01

    In the present work, we investigate the structural, optoelectronic and thermoelectric properties of the YLi3 X 2 (X = Sb, Bi) compounds using the full potential augmented plane wave plus local orbital (FP-APW+lo) method. The exchange-correlation potential is treated with the generalized gradient approximation/local density approximation (GGA/LDA) and with the modified Becke-Johnson potential (TB-mBJ) in order to improve the electronic band structure calculations. In addition, the estimated ground state properties such as the lattice constants, external parameters, and bulk moduli agree well with the available experimental data. Our band structure calculations with GGA and LDA predict that both compounds have semimetallic behaviors. However, the band structure calculations with the GGA/TB-mBJ approximation indicate that the ground state of the YLi3Sb2 compound is semiconducting and has an estimated indirect band gap (Γ-L) of about 0.036 eV while the ground state of YLi3Bi2 compound is semimetallic. Conversely the LDA/TB-mBJ calculations indicate that both compounds exhibit semiconducting characters and have an indirect band gap (Γ-L) of about 0.15 eV and 0.081 eV for YLi3Sb and YLi3Bi2 respectively. Additionally, the optical properties reveal strong responses of the herein materials in the energy range between the IR and extreme UV regions. Thermoelectric properties such as thermal conductivity, electrical conductivity, Seebeck coefficient, and thermo power factors are also calculated.

  3. Is It the Appropriate Time to Stop Applying Selenium Enriched Salt in Kashin-Beck Disease Areas in China?

    Directory of Open Access Journals (Sweden)

    Yujie Ning

    2015-07-01

    Full Text Available We aimed to identify significant factors of selenium (Se nutrition of children in Kashin-Beck disease (KBD endemic areas and non-KBD area in Shaanxi Province for providing evidence of whether it is the time to stop applying Se-enriched salt in KBD areas. A cross-sectional study contained 368 stratified randomly selected children aged 4–14 years was conducted with 24-h retrospective questionnaire based on a pre-investigation. Food and hair samples were collected and had Se contents determined with hydride generation atomic fluorescence spectrometry. Average hair Se content of 349.0 ± 60.2 ng/g in KBD-endemic counties was significantly lower than 374.1 ± 47.0 ng/g in non-KBD counties. It was significantly higher in the male children (365.2 ± 52.3 ng/g than in the female (345.0 ± 62.2 ng/g, p = 0.002 and significantly higher in the 4.0–6.9 years group (375.2 ± 58.9 ng/g than the 7.0–14.0 years group (347.0 ± 56.1 ng/g, p < 0.01. Gender, living area, Se intake without supplements, Se-enriched salt, oil source and protein intake were identified as significant factors of hair Se contents. Cereals, meat and milk were commonly included as significant food categories that mainly contributed to Se intake without supplement of the whole population. Balanced dietary structure without Se supplement could effectively enhance and maintain children’s Se nutrition. It may be the time to stop applying Se-enriched salt in KBD areas in Shaanxi Province.

  4. Assessing cognitive insight in nonpsychiatric individuals and outpatients with schizophrenia in Taiwan: an investigation using the Beck Cognitive Insight Scale

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    Lu Chien-Wen

    2011-10-01

    Full Text Available Abstract Background The Beck Cognitive Insight Scale (BCIS was designed for the assessment of the cognitive processes involved in self-reflection and the ability to modify erroneous beliefs and misinterpretations. Studies investigating the factor structure of the BCIS have indicated a two-factor model in the psychotic population. The factor structure of the BCIS, however, has not received much consideration in the nonpsychiatric population. The present study examined the factor structure and validity of the BCIS and compared its scores between nonpsychiatric individuals and outpatients with psychosis. Method The Taiwanese version of the BCIS was administered to 507 nonpsychiatric individuals and 118 outpatients with schizophrenia. The psychometric properties of the BCIS were examined through the following analyses: exploratory and confirmatory factor analyses, reliability, correlation analyses, and discriminative validity. Results The BCIS showed adequate internal consistency and stability over time. Exploratory and confirmatory factor analyses on the 15-item measure indicated a two-factor solution that supported the two dimensions of the Taiwanese BCIS, which was also observed with the original BCIS. Following the construct validation, we obtained a composite index (self-reflectiveness minus self-certainty of the Taiwanese BCIS that reflected cognitive insight. Consistent with previous studies, our results indicated that psychosis is associated with low self-reflectiveness and high self-certainty, which possibly reflect lower cognitive insight. Our results also showed that better cognitive insight is related to worse depression in patients with schizophrenia spectrum disorders, but not in nonpsychiatric individuals. The receiver operating characteristic (ROC analyses revealed that the area under the curve (AUC was 0.731. A composite index of 3 was a good limit, with a sensitivity of 87% and a specificity of 51%. Conclusion The BCIS proved to be

  5. Dimensional and hierarchical models of depression using the Beck Depression Inventory-II in an Arab college student sample

    Directory of Open Access Journals (Sweden)

    Ohaeri Jude U

    2010-07-01

    Full Text Available Abstract Background An understanding of depressive symptomatology from the perspective of confirmatory factor analysis (CFA could facilitate valid and interpretable comparisons across cultures. The objectives of the study were: (i using the responses of a sample of Arab college students to the Beck Depression Inventory (BDI-II in CFA, to compare the "goodness of fit" indices of the original dimensional three-and two-factor first-order models, and their modifications, with the corresponding hierarchical models (i.e., higher - order and bifactor models; (ii to assess the psychometric characteristics of the BDI-II, including convergent/discriminant validity with the Hopkins Symptom Checklist (HSCL-25. Method Participants (N = 624 were Kuwaiti national college students, who completed the questionnaires in class. CFA was done by AMOS, version 16. Eleven models were compared using eight "fit" indices. Results In CFA, all the models met most "fit" criteria. While the higher-order model did not provide improved fit over the dimensional first - order factor models, the bifactor model (BFM had the best fit indices (CMNI/DF = 1.73; GFI = 0.96; RMSEA = 0.034. All regression weights of the dimensional models were significantly different from zero (P Conclusion The broadly adequate fit of the various models indicates that they have some merit and implies that the relationship between the domains of depression probably contains hierarchical and dimensional elements. The bifactor model is emerging as the best way to account for the clinical heterogeneity of depression. The psychometric characteristics of the BDI-II lend support to our CFA results.

  6. Factor Structure and Clinical Utility of the Beck Depression Inventory in Patients with Binge Eating Disorder and Obesity

    Science.gov (United States)

    Udo, Tomoko; McKee, Sherry A.; Grilo, Carlos M.

    2015-01-01

    Objective The Beck Depression Inventory (BDI) is often used to assess depression symptoms, but its factor structure and clinical utility have not been evaluated in patients with binge eating disorder (BED) and obesity. Methods 882 treatment-seeking obese patients with BED were administered structured interviews (SCID-I/P) and completed self-report questionnaires. Results Exploratory and confirmatory factor analyses supported a brief 16-item BDI version with a three-factor structure (affective, attitudinal, and somatic). Both 21- and 16-item versions showed excellent internal consistency (both α=0.89) and had significant correlation patterns with different aspects of eating disorder psychopathology; three factors showed significant but variable associations with eating disorder psychopathology. Area under the curves (AUC) for both BDI versions were significant in predicting major depressive disorder (MDD; AUC=0.773 [16-item], 73.5% sensitivity/70.2% specificity, AUC=0.769 [21-item], 79.5% sensitivity/64.1% specificity) and mood disorders (AUC=0.763 [16-item], 67.1% sensitivity/71.5% specificity, AUC=0.769 [21-item], 84.2% sensitivity/55.7% specificity). 21-item BDI (cut-off score ≥16) showed higher negative predictive values (94.0% vs. 93.0% [MDD]; 92.4% vs. 88.3% [mood disorders]) than brief 16-item BDI (cut-off score ≥13). Conclusions Both BDI versions demonstrated moderate performance as a screening instrument for MDD/mood disorders in obese patients with BED. Advantages and disadvantages for both versions are discussed. A three-factor structure has potential to inform the conceptualization of depression features. PMID:25537344

  7. [Manfred Schneider. Lübeck im 12. und 13. Jahrhundert. Archäologische Befunde zur entstehung einer mittelalterlichen Grossstadt. In : Expansion - integration? Danish-Baltic Contacts 1147-1410] / Dennis Hortmuth

    Index Scriptorium Estoniae

    Hortmuth, Dennis

    2011-01-01

    Arvustus:Manfred Schneider. Lübeck im 12. und 13. Jahrhundert. Archäologische Befunde zur entstehung einer mittelalterlichen Grossstadt. In : Expansion - integration? Danish-Baltic Contacts 1147-1410 AD. (Vordingborg, 2009).

  8. X-ray image characteristics and related measurements in the ankles of 118 adult patients with Kashin-Beck disease

    Institute of Scientific and Technical Information of China (English)

    Zeng Yi; Zhou Zongke; Shen Bin; Yang Jing; Kang Pengde; Zhou Xuan; Zou Ling

    2014-01-01

    Background Kashin-Beck disease (KBD) is a chronic,degenerative osteoarthropathy that causes severe skeletal deformation.Although many researchers have proven that almost all KBD patients who showed an increaseing proximo-distal gradient had radiographic abnormalities of the ankle,few detailed description of radiographic changes in the ankles of patients with KBD has been reported,especially for variable measurements of ankle changes.The purpose of this study was to demonstrate the radiographic characteristics of the ankles of adult KBD patients.Methods One hundred and eighteen adult KBD patients from september to October 2010 in Rongtang county in China were examined with lateral radiographs of the right ankle.The morphological abnormalities in the talus,calcaneus,navicular bone,distal tibia,and joint space were analyzed,and the calcaneus length,height,length-height ratio,tuber angle,front angle,plantar angle,and distal tibia anteroposterior (AP) length were measured using Riepert's method.Results Eighty-one patients (68.6%) had abnormal ankle radiographs; 72 (88.9%) patients had talus changes,69 (85.2%) patients had calcaneus changes,28 (34.6%) patients had navicular bone changes,and 48 (59.2%) patients had distal tibia changes.For 118 KBD patients,the average calcaneus length was 7.4 cm,height was 4.3 cm,and the length-height ratio was 1.7.The calcaneus tuber angle was 28.2°,front angle was 38.0° and the plantar angle was 74.2°.The distal tibia anteroposterior length was 4.05 cm.Compared with 50 normal adults (control group),significant differences were found for the calcaneus length,the calcaneus length-height ratio,and the distal tibia AP length.Conclusions Patients with KBD have characteristic abnormalities on ankle radiographs; talus depression and deformity,calcaneus shortening deformity,and distal tibia deformity with AP length widening were the most typical changes.

  9. Críticas al paradigma pos-político: en torno al consensualismo de Ulrich Beck y Anthony Giddens

    Directory of Open Access Journals (Sweden)

    Agustín Lewit

    2011-01-01

    Full Text Available This paper attempts to develop a critical reading of two authors registered within of the Theory of Reflexive Modernity, Anthony Giddens and Ulrich Beck, with particular emphasis on the political nature from both authors promote their theoretical propositions. The main objective of this paper is to highlight that the authors mentioned in their quest to eradicate the conflictual element of the political dimension, end up emptying it of its content more appropriate.The main theoretical lifeline that we use to guide our review consists of the theoretical contributions of the Belgian philosopher Chantal Mouffe.

  10. Electronic properties of III-nitride semiconductors: A first-principles investigation using the Tran-Blaha modified Becke-Johnson potential

    International Nuclear Information System (INIS)

    In this work, we use density functional theory to investigate the influence of semilocal exchange and correlation effects on the electronic properties of III-nitride semiconductors considering zinc-blende and wurtzite crystal structures. We find that the inclusion of such effects through the use of the Tran-Blaha modified Becke-Johnson potential yields an excellent description of the electronic structures of these materials giving energy band gaps which are systematically larger than the ones obtained with standard functionals such as the generalized gradient approximation. The discrepancy between the experimental and theoretical band gaps is then significantly reduced with semilocal exchange and correlation effects. However, the effective masses are overestimated in the zinc-blende nitrides, but no systematic trend is found in the wurtzite compounds. New results for energy band gaps and effective masses of zinc-blende and wurtzite indium nitrides are presented

  11. 'Extra-regional' strike-slip fault systems in Chile and Alaska: the North Pacific Rim orogenic Stream vs. Beck's Buttress

    Science.gov (United States)

    Redfield, T. F.; Scholl, D. W.; Fitzgerald, P. G.

    2010-12-01

    us to speculate towards the role of obliquity of plate tectonic convergence for the along-strike evolution of extra-regional strike-slip systems. Highly-oblique initiation of the DFS encourages detachment of fault-bounded terranes and provides a driver that encourages a westward-fanning pattern of extrusion towards the free face of the Beringian margin. Plausibly, its less-oblique central segment promotes vertical pathway exhumation observed at (for example) Denali itself. A more orthogonal regime drives the entire LOFZ, precluding slivering at its initiation and promoting upstream buttressing (Beck et al., 1993). The convergent plate boundary setting opens a window through time and space on the evolution of large-magnitude fault-systems. Escape, or not to escape ~ what best answers the question ? Citations Redfield, T. F., Scholl, D. W., Fitzgerald, P. G., and Beck, M. E., & 2007. Escape tectonics and the extrusion of Alaska: past, present, and future. Geology. 35, 11, 1039-1042 Beck, M.E., Rojas, C. and Cembrano, J. (1993). “On the nature of buttressing in margin-parallel strike-fault systems.” Geology, Vol. 21, pp. 755-758.

  12. Application of Beck self-rating depression scale among patients with infertility%Beck抑郁自评问卷在不孕症患者中的应用

    Institute of Scientific and Technical Information of China (English)

    谭丽; 张婷婷; 王姿雅; 徐博文

    2011-01-01

    Objective: To research the reliability and validity of Beck self- rating depression scale among patients with infertility,provide a basis for choosing depression self - assessment tool for patients with infertility.Methods: Beck self - rating depression scale was used to investigate 176 patients with infertihty, factor analysis was used to research the reliability and validity of Beck self - rating depression scale.Results: Beck self- rating depression scale chose four factors including pessimism, depression, diminished capacity and low self- evaluation; the Cronbach α coefficients of four dimensions were 0.583, 0.554, 0.398 and 0.529, respectively; the total Cronbach α coefficient was 0.718; the correlation coefficient between dimensions and total score of the questionnaire was 0.43 ~ 0.809 ( P < 0.01 ).Conclusion: The reliability and validity of Beck self - rating depression scale are good, Beck self - rating depression scale can reflect the depression status of infertile cases effectively; the depression status of infertile cases is high, necessary preventive measures should be adopted to intervene the adverse psychological state early.%目的:研究Beck抑郁自评问卷在不孕症患者中使用的信度和效度,为不孕症患者抑郁状态自评工具的选择提供依据.方法:应用Beck抑郁白评问卷(BDI),对176例不孕症患者进行调查,采用因素分析方法研究BDI的信度和效度.结果:BDI提取了悲观情绪、抑郁情绪、能力减退、自我评价低4个因子;该问卷Cronbach α系数4个构面分别是0.583,0.554、0.398、0.529,总Cronbach α系数为0.718;各分维度与问卷总分的相关在0.43~0.809之间(P<0.01).结论:Beck抑郁自评问卷具有较好的信度和效度,可以有效反映不孕症患者的抑郁状态.不孕症患者抑郁状态较高,应采取必要的预防措施对其不良心理状态进行早期干预.

  13. Prevalence of depression and its associated factors using Beck Depression Inventory among students of School of Health and Nutrition, Tabriz, Iran in 2009

    Directory of Open Access Journals (Sweden)

    Saeid Safiri

    2013-12-01

    Full Text Available BACKGROUND: Depression is a debilitating disease which is caused by social and environmental factors in additionto genetic factors. University students are among the young and vulnerable population to depression and theirpopulation is increasing with increase in universities and higher education institutions. Therefore, any disturbance instudent's mental and physical health is a serious threat for the next generation. In this study, we aimed to estimate theprevalence of depression and its related factors in students of School of Health and Nutrition at Tabriz University ofMedical Sciences, Iran. METHODS: This was a cross-sectional survey on 175 students selected by stratified random sampling, educating indifferent fields at School of Health and Nutrition in 2009. The data collection tool was the short form of the standardBeck Depression Inventory (BDI which is used for screening depression. The collected data were analyzed by softwareStata Statistical Software, Release 10.0 (Stata Corporation, College Station, TX, USA. RESULTS: The results showed that 62.7% of the students had depression and from these 10.9% suffered from severedepression. Significantly higher depression rates were seen in students with worrisome about the future. Marriedstudents, those interested in their field of study, those performing prayers and regularly reading the Quran hadsignificantly lower rates of depression. CONCLUSIONS: Due to the high prevalence of depression, screening strategies should be implemented to identifydepressed students. Counseling services should be available and accessible to students at risk.

  14. Substance Use and Depression Symptomatology: Measurement Invariance of the Beck Depression Inventory (BDI-II among Non-Users and Frequent-Users of Alcohol, Nicotine and Cannabis.

    Directory of Open Access Journals (Sweden)

    Ashlee A Moore

    Full Text Available Depression is a highly heterogeneous condition, and identifying how symptoms present in various groups may greatly increase our understanding of its etiology. Importantly, Major Depressive Disorder is strongly linked with Substance Use Disorders, which may ameliorate or exacerbate specific depression symptoms. It is therefore quite plausible that depression may present with different symptom profiles depending on an individual's substance use status. Given these observations, it is important to examine the underlying construct of depression in groups of substance users compared to non-users. In this study we use a non-clinical sample to examine the measurement structure of the Beck Depression Inventory (BDI-II in non-users and frequent-users of various substances. Specifically, measurement invariance was examined across those who do vs. do not use alcohol, nicotine, and cannabis. Results indicate strict factorial invariance across non-users and frequent-users of alcohol and cannabis, and metric invariance across non-users and frequent-users of nicotine. This implies that the factor structure of the BDI-II is similar across all substance use groups.

  15. Substance Use and Depression Symptomatology: Measurement Invariance of the Beck Depression Inventory (BDI-II) among Non-Users and Frequent-Users of Alcohol, Nicotine and Cannabis.

    Science.gov (United States)

    Moore, Ashlee A; Neale, Michael C; Silberg, Judy L; Verhulst, Brad

    2016-01-01

    Depression is a highly heterogeneous condition, and identifying how symptoms present in various groups may greatly increase our understanding of its etiology. Importantly, Major Depressive Disorder is strongly linked with Substance Use Disorders, which may ameliorate or exacerbate specific depression symptoms. It is therefore quite plausible that depression may present with different symptom profiles depending on an individual's substance use status. Given these observations, it is important to examine the underlying construct of depression in groups of substance users compared to non-users. In this study we use a non-clinical sample to examine the measurement structure of the Beck Depression Inventory (BDI-II) in non-users and frequent-users of various substances. Specifically, measurement invariance was examined across those who do vs. do not use alcohol, nicotine, and cannabis. Results indicate strict factorial invariance across non-users and frequent-users of alcohol and cannabis, and metric invariance across non-users and frequent-users of nicotine. This implies that the factor structure of the BDI-II is similar across all substance use groups. PMID:27046165

  16. Insights in the electronic structure and redox reaction energy in LiFePO{sub 4} battery material from an accurate Tran-Blaha modified Becke Johnson potential

    Energy Technology Data Exchange (ETDEWEB)

    Araujo, Rafael B., E-mail: rafael.barros@physics.uu.se [Condensed Matter Theory Group, Department of Physics and Astronomy, Box 516, Uppsala University, S-75120 Uppsala (Sweden); Almeida, J. de S [Condensed Matter Theory Group, Department of Physics and Astronomy, Box 516, Uppsala University, S-75120 Uppsala (Sweden); Instituto de Física, Universidade Federal da Bahia, Salvador, Bahia (Brazil); Ferreira da Silva, A. [Instituto de Física, Universidade Federal da Bahia, Salvador, Bahia (Brazil); Ahuja, Rajeev [Condensed Matter Theory Group, Department of Physics and Astronomy, Box 516, Uppsala University, S-75120 Uppsala (Sweden); Applied Materials Physics, Department of Materials and Engineering, Royal Institute of Technology (KTH), S-100 44 Stockholm (Sweden)

    2015-09-28

    The main goals of this paper are to investigate the accuracy of the Tran-Blaha modified Becke Johnson (TB-mBJ) potential to predict the electronic structure of lithium iron phosphate and the related redox reaction energy with the lithium deintercalation process. The computed electronic structures show that the TB-mBJ method is able to partially localize Fe-3d electrons in LiFePO{sub 4} and FePO{sub 4} which usually is a problem for the generalized gradient approximation (GGA) due to the self interaction error. The energy band gap is also improved by the TB-mBJ calculations in comparison with the GGA results. It turned out, however, that the redox reaction energy evaluated by the TB-mBJ technique is not in good agreement with the measured one. It is speculated that this disagreement in the computed redox energy and the experimental value is due to the lack of a formal expression to evaluate the exchange and correlation energy. Therefore, the TB-mBJ is an efficient method to improve the prediction of the electronic structures coming form the standard GGA functional in LiFePO{sub 4} and FePO{sub 4}. However, it does not appear to have the same efficiency for evaluating the redox reaction energies for the investigated system.

  17. Depressive symptoms in people with and without alcohol abuse: factor structure and measurement invariance of the Beck Depression Inventory (BDI-II) across groups.

    Science.gov (United States)

    Skule, Cecilie; Ulleberg, Pål; Dallavara Lending, Hilde; Berge, Torkil; Egeland, Jens; Brennen, Tim; Landrø, Nils Inge

    2014-01-01

    This study explored differences in the factor structure of depressive symptoms in patients with and without alcohol abuse, and differences in the severity of depressive symptoms between the two groups. In a sample of 358 patients without alcohol problems and 167 patients with comorbid alcohol problems, confirmatory factor analysis revealed that the same factor structures, Beck et al.'s two-factor Somatic Affective-Cognitive (SA-C) model, and Buckley et al.'s three-factor Cognitive-Affective- Somatic (C-A-S) model, demonstrated the best fit to the data in both groups. The SA-C model was preferred due to its more parsimonious nature. Evidence for strict measurement invariance across the two groups for the SA-C model was found. MIMIC (multiple-indicator-multiple-cause) modeling showed that the level of depressive symptoms was found to be highest on both factors in the group with comorbid alcohol problems. The magnitude of the differences in latent mean scores suggested a moderate difference in the level of depressive symptoms between the two groups. It is argued that patients with comorbid depression and alcohol abuse should be offered parallel and adequate treatment for both conditions. PMID:24533075

  18. Improved half-metallic gap of zincblende half-metal superlattices with the Tran-Blaha modified Becke-Johnson density functional

    Science.gov (United States)

    Guo, San-Dong

    2016-08-01

    Binary transition-metal pnictides and chalcogenides half-metallic ferromagnetic materials with zincblende structure, being compatible with current semiconductor technology, can be used to make high-performance spintronic devices. Here, we investigate electronic structures and magnetic properties of composite structure ((CrX)2 /(YX)2 (X=As, Sb; Se, Te and Y=Ga; Zn) superlattices) of zincblende half-metallic ferromagnetism and semiconductor by using Tran and Blaha's modified Becke and Johnson (mBJ) exchange potential. Calculated results show that they all are half-metallic ferromagnets with both generalized gradient approximation (GGA) and mBJ, and the total magnetic moment per formula unit follows a Slater-Pauling-like "rule of 8". The key half-metallic gaps by using mBJ are enhanced with respect to GGA results, which is because mBJ makes the occupied minority-spin p-bands move toward lower energy, but toward higher energy for empty minority-spin Cr-d bands. When the spin-orbit coupling (SOC) is included, the spin polarization deviates from 100%, and a most reduced polarization of 98.3% for (CrSb)2 /(GaSb)2, which indicates that SOC has small effects, of the order of 1%, in the considered four kinds of superlattice.

  19. In vitro effects of sodium hyaluronate on the proliferation and the apoptosis in chondrocytes from patients with Kashin-Beck disease and osteoarthritis

    Institute of Scientific and Technical Information of China (English)

    Zongqiang Gao; Xiong Guo; Chen Duan; Weijuan Ma; Peng Xu; Ruiyu Liu; Qisheng Gu; Junchang Chen

    2009-01-01

    Objective:To identify the in vitro effects of sodium hyaluronate(HA) on the proliferation and the apoptosis of chondrocytes from patients with Kashin-Beck disease(KBD) and osteoarthritis(OA). Methods:Samples of articular cartilages from KBD and OA patients, as well as healthy volunteers(6 subjects in each of the 3 groups) were dissected, digested with collagenase and the cells cultured in monolayers. Chondrocytes from each sample were assigned to an untreated group and two HA-treated groups: H0(no HA), H100(HA, 0.1 g/L) and H500(HA, 0.5 g/L). The first passage chondrocytes were used to observe proliferation using the MTT assay, and apoptosis by flow cytometry through Annexin V/PI staining. Results:HA promoted proliferation of chondrocytes in all the three groups, and in KBD and OA groups, for cells cultured for 4 and 6 days, H500 significantly promoted the cell proliferation. The apoptotic rates of both KBD and OA group chondrocytes were in the order H500 < HA100 < H0. Conclusion:Sodium hyaluronate administration has a dose-dependendent vitro effect to promote proliferation and inhibit apoptosis of chondrocytes from patients with KBD and OA.

  20. Insights in the electronic structure and redox reaction energy in LiFePO4 battery material from an accurate Tran-Blaha modified Becke Johnson potential

    International Nuclear Information System (INIS)

    The main goals of this paper are to investigate the accuracy of the Tran-Blaha modified Becke Johnson (TB-mBJ) potential to predict the electronic structure of lithium iron phosphate and the related redox reaction energy with the lithium deintercalation process. The computed electronic structures show that the TB-mBJ method is able to partially localize Fe-3d electrons in LiFePO4 and FePO4 which usually is a problem for the generalized gradient approximation (GGA) due to the self interaction error. The energy band gap is also improved by the TB-mBJ calculations in comparison with the GGA results. It turned out, however, that the redox reaction energy evaluated by the TB-mBJ technique is not in good agreement with the measured one. It is speculated that this disagreement in the computed redox energy and the experimental value is due to the lack of a formal expression to evaluate the exchange and correlation energy. Therefore, the TB-mBJ is an efficient method to improve the prediction of the electronic structures coming form the standard GGA functional in LiFePO4 and FePO4. However, it does not appear to have the same efficiency for evaluating the redox reaction energies for the investigated system

  1. Near-edge band structures and band gaps of Cu-based semiconductors predicted by the modified Becke-Johnson potential plus an on-site Coulomb U

    International Nuclear Information System (INIS)

    Diamond-like Cu-based multinary semiconductors are a rich family of materials that hold promise in a wide range of applications. Unfortunately, accurate theoretical understanding of the electronic properties of these materials is hindered by the involvement of Cu d electrons. Density functional theory (DFT) based calculations using the local density approximation or generalized gradient approximation often give qualitative wrong electronic properties of these materials, especially for narrow-gap systems. The modified Becke-Johnson (mBJ) method has been shown to be a promising alternative to more elaborate theory such as the GW approximation for fast materials screening and predictions. However, straightforward applications of the mBJ method to these materials still encounter significant difficulties because of the insufficient treatment of the localized d electrons. We show that combining the promise of mBJ potential and the spirit of the well-established DFT + U method leads to a much improved description of the electronic structures, including the most challenging narrow-gap systems. A survey of the band gaps of about 20 Cu-based semiconductors calculated using the mBJ + U method shows that the results agree with reliable values to within ±0.2 eV

  2. Understanding ferromagnetism and optical absorption in 3d transition metal-doped cubic ZrO2 with the modified Becke-Johnson exchange-correlation functional

    International Nuclear Information System (INIS)

    The electronic structure, magnetic, and optical properties in cubic crystalline phase of Zr1−xTMxO2 (TM = V, Mn, Fe, and Co) at x = 6.25% are studied using density functional theory with the Generalized Gradient Approximation and the modified Becke-Johnson of the exchange-correlation energy and potential. In our calculations, the zirconia is a p-type semiconductor and has a large band gap. We evaluated the possibility of long-range magnetic order for transition metal ions substituting Zr. Our results show that ferromagnetism is the ground state in V, Mn, and Fe-doped ZrO2 and have a high value of energy in Mn-doped ZrO2. However, in Co-doped ZrO2, antiferromagnetic ordering is more stable than the ferromagnetic one. The exchange interaction mechanism has been discussed to explain the responsible of this stability. Moreover, it has been found that the V, Mn, and Fe transition metals provide half-metallic properties considered to be the leading cause, responsible for ferromagnetism. Furthermore, the optical absorption spectra in the TM -doped cubic ZrO2 are investigated

  3. Electronic structure of antifluorite Cu2X (X = S, Se, Te) within the modified Becke-Johnson potential plus an on-site Coulomb U

    International Nuclear Information System (INIS)

    The traditional photon absorbers Cu2−xX (X = S, Se, and Te) have regained significant research attention in the search of earth-abundant photovoltaic materials. These moderate- and narrow-gap materials have also been shown to exhibit excellent thermoelectric properties recently. However, semimetallic band structures with inverted band orderings are predicted for antifluorite structure Cu2X using density functional theory with the local density approximation or the generalized gradient approximation. We find that semiconducting band structures and normal band orderings can be obtained using the modified Becke-Johnson potential plus an on-site Coulomb U (the mBJ+U approach), which is consistent with our earlier finding for diamond-like Cu-based multinary semiconductors [Y. Zhang, J. Zhang, W. Gao, T. A. Abtew, Y. Wang, P. Zhang, and W. Zhang, J. Chem. Phys. 139, 184706 (2013)]. The trend of the chemical bonding of Cu2X is analyzed, which shows that the positions of the valence band maximum and conduction band minimum are strongly affected by the inter-site pd and intra-site sp hybridizations, respectively. The calculated gaps of Cu2S and Cu2Se still seem to be underestimated compared with experimental results. We also discuss the effects of different structural phases and Cu disordering and deficiency on the bandgaps of these materials

  4. Depressive symptoms in people with and without alcohol abuse: factor structure and measurement invariance of the Beck Depression Inventory (BDI-II across groups.

    Directory of Open Access Journals (Sweden)

    Cecilie Skule

    Full Text Available This study explored differences in the factor structure of depressive symptoms in patients with and without alcohol abuse, and differences in the severity of depressive symptoms between the two groups. In a sample of 358 patients without alcohol problems and 167 patients with comorbid alcohol problems, confirmatory factor analysis revealed that the same factor structures, Beck et al.'s two-factor Somatic Affective-Cognitive (SA-C model, and Buckley et al.'s three-factor Cognitive-Affective- Somatic (C-A-S model, demonstrated the best fit to the data in both groups. The SA-C model was preferred due to its more parsimonious nature. Evidence for strict measurement invariance across the two groups for the SA-C model was found. MIMIC (multiple-indicator-multiple-cause modeling showed that the level of depressive symptoms was found to be highest on both factors in the group with comorbid alcohol problems. The magnitude of the differences in latent mean scores suggested a moderate difference in the level of depressive symptoms between the two groups. It is argued that patients with comorbid depression and alcohol abuse should be offered parallel and adequate treatment for both conditions.

  5. First principles phase transition, elastic properties and electronic structure calculations for cadmium telluride under induced pressure: density functional theory, LDA, GGA and modified Becke-Johnson potential

    Science.gov (United States)

    Kabita, Kh; Maibam, Jameson; Indrajit Sharma, B.; Brojen Singh, R. K.; Thapa, R. K.

    2016-01-01

    We report first principles phase transition, elastic properties and electronic structure for cadmium telluride (CdTe) under induced pressure in the light of density functional theory using the local density approximation (LDA), generalised gradient approximation (GGA) and modified Becke-Johnson (mBJ) potential. The structural phase transition of CdTe from a zinc blende (ZB) to a rock salt (RS) structure within the LDA calculation is 2.2 GPa while that within GGA is found to be at 4 GPa pressure with a volume collapse of 20.9%. The elastic constants and parameters (Zener anisotropy factor, Shear modulus, Poisson’s ratio, Young’s modulus, Kleinmann parameter and Debye’s temperature) of CdTe at different pressures of both the phases have been calculated. The band diagram of the CdTe ZB structure shows a direct band gap of 1.46 eV as predicted by mBJ calculation which gives better results in close agreement with experimental results as compared to LDA and GGA. An increase in the band gap of the CdTe ZB phase is predicted under induced pressure while the metallic nature is retained in the CdTe RS phase.

  6. Psychometric properties of the Portuguese version of the State-Trait Anxiety Inventory applied to college students: factor analysis and relation to the Beck Depression Inventory

    Directory of Open Access Journals (Sweden)

    L. Andrade

    2001-03-01

    Full Text Available The psychometric properties of the Portuguese version of the trait form of the State-Trait Anxiety Inventory (STAI-T and its relation to the Beck Depression Inventory (BDI were evaluated in a large Brazilian college student sample containing 845 women and 235 men. STAI-T scores tended to be higher for women, singles, those who work, and subjects under 30 years. Factor analysis of the STAI-T for total sample and by gender yielded two factors: the first representing a mood dimension and the second being related to worrying or cognitive aspects of anxiety. In order to study the relation between anxiety and depression measures, factor analysis of the combination of the 21 BDI items and the 20 STAI-T items was also carried out. The analysis resulted in two factors that were analyzed according to the tripartite model of anxiety and depression. Most of the BDI items (measuring positive affectivity and nonspecific symptoms of depression were loaded on the first factor and four STAI-T items that measure positive affectivity. The remaining STAI-T items, all of them measuring negative affect, remained in the second factor. Thus, factor 1 represents a depression dimension and factor 2 measures a mood-worrying dimension. The findings of this study suggest that, although widely used as an anxiety scale, the STAI-T in fact measures mainly a general negative affect.

  7. High Line

    OpenAIRE

    Jagielska, Anna

    2015-01-01

    This project examines The High Line in New York City and what is due to its success. The park, which runs through the meatpacking district in Manhattan, is on an old rail line that was abandoned from the 1980s. Two private locals, Joshua and Hammond, founded the non-profit organization “Friends of The High Line” and established the rail line into a public park. The aesthetics of the park is the wildness of the nature and the modern architecture in the middle of Manhattan mixed with a sustaina...

  8. Blurring lines

    OpenAIRE

    Howard, Heidi C; Knoppers, Bartha Maria; Borry, Pascal

    2010-01-01

    Companies that offer direct-to-consumer genetic testing and conduct research are blurring the line between customers and research subjects. Should these companies adhere to the same ethical regulations as academic researchers?

  9. High Line

    DEFF Research Database (Denmark)

    Kiib, Hans

    2015-01-01

    At just over 10 meters above street level, the High Line extends three kilometers through three districts of Southwestern Manhattan in New York. It consists of simple steel construction, and previously served as an elevated rail line connection between Penn Station on 34th Street and the many....... The High Line project has been carried out as part of an open conversion strategy. The result is a remarkable urban architectural project, which works as a catalyst for the urban development of Western Manhattan. The greater project includes the restoration and reuse of many old industrial buildings...... in close proximity to the park bridge and new projects being added to fit the context. The outcome is a conglomeration of non-contemporary urban activities along the High Line, where mechanical workshops, small wholesale stores. etc. mix with new exclusive residential buildings, eminent cafés...

  10. [Rolf Hammel-Kiesow. Der Lübecker Katasterplan des 19. Jahrhunderts als historische Quelle. Überlegungen zur Stadtentwicklung Lübecks aus archäologischer, historischer und bauhistorischen Zicht] / Dennis Hormuth

    Index Scriptorium Estoniae

    Hormuth, Dennis

    2013-01-01

    Arvustus : Rolf Hammel-Kiesow. Der LÜbecker Katasterplan des 19. Jahrhunderts als historische Quelle. Überlegungen zur Stadtentwicklung Lübecks aus archäologischer, historischer und bauhistorischen Sicht. In: Stadtgründung und Stadterweiterung. Beiträge von Archäologie und Stadtgeschichtsforschung (=Beiträge zur Geschichte der Städte Mitteleuropas XXII). Linz, 2011. S. 75-104

  11. Rendimiento diagnóstico y estructura factorial del Inventario de Depresión de Beck-II (BDI-II

    Directory of Open Access Journals (Sweden)

    Jesús Sanz

    2013-01-01

    Full Text Available Este estudio tenía dos objetivos. Primero, analizar el rendimiento diagnóstico de la versión española del Inventario de Depresión de Beck-II (BDI-II en una muestra de pacientes con trastornos psicológicos y, segundo, examinar si las soluciones unifactoriales y bifactoriales del BDI-II encontradas previamente en muestras similares son replicables y, de ser así, analizar la contribución relativa del factor general y de los dos factores específicos a la varianza del BDI-II. El BDI-II, junto con el módulo de los trastornos del estado de ánimo de la Entrevista Clínica Estructurada para los Trastornos del Eje I del DSM-IV (SCID-I VC y un listado de cotejo de síntomas depresivos completado por el clínico, fueron aplicados a una muestra española de 322 pacientes adultos ambulatorios con diversos trastornos psicológicos. Tomando como criterio el diagnóstico clínico basado en la SCID-I VC y el listado de cotejo de síntomas depresivos, el BDI-II demostró un rendimiento diagnóstico aceptable para discriminar entre pacientes con trastorno depresivo mayor y pacientes sin depresión. Los análisis factoriales indicaron que el BDI-II mide una dimensión general de depresión compuesta por dos factores relacionados (somático y cognitivo, pero estos factores apenas explicaban varianza adicional más allá de la puntuación global.

  12. The electronic structure and optical properties of XSi(X = Fe,Ru,Os): A first principles investigation within the modified Becke-Johnson exchange potential plus LDA

    Energy Technology Data Exchange (ETDEWEB)

    Li Jia, E-mail: jiali@hebut.edu.cn; Zhang Zhidong; Ji Qing; Zhang Hui; Luo Hongzhi

    2012-10-05

    Highlights: Black-Right-Pointing-Pointer Reproduce of band gap for XSi(X = Fe,Ru,Os) with gap of {approx}10{sup -1} eV. Black-Right-Pointing-Pointer Using the mBJ + LDA first principles in comparison with GGA and LDA. Black-Right-Pointing-Pointer Theoretical optical conductivity is in agreement with the measurement. - Abstract: The electronic structure, optical reflectivity spectra and optical conductivity of semiconducting transition-metal silicides FeSi, RuSi and OsSi have been investigated by using first principles calculation within the recent developed modified Becke-Johnson exchange potential plus local-density approximation (mBJ + LDA). The electronic structures produced by mBJ + LDA, generalized gradient approximation (GGA) and LDA are rather similar although the band gap has been enlarged more or less by the mBJ + LDA compared to the GGA and LDA for the three compounds. The mBJ + LDA, GGA and LDA all have overestimated the band gap for FeSi and OsSi compared to the experiment. For RuSi, the theoretical gap values are basically close to the experimental values and the improvement of gap by mBJ + LDA is only 0.04 eV in comparison with the GGA. The mBJ + LDA and GGA also produce similar results with respect to their optical properties including the reflectivity spectra and optical conductivity except that for the reflectivity spectra of FeSi, the GGA result is little better consistent with the experimental measurement than the mBJ + LDA result. The optical conductivity calculated by mBJ + LDA and GGA both exhibits the absorption edge, in well correspondence to the optical measurement.

  13. En kommentar til Becks model

    DEFF Research Database (Denmark)

    Philipps, Morten; Andersen, Thomas Dyreborg

    2014-01-01

    Flipped classroom – en trend vi må forholde os til Online læringsressourcer har de sidste par år fået mange til at indse at teknologien har noget radikalt andet at byde på, og dette har skabt en populær didaktik kaldet flipped classroom som vi både ser vinde indpas i folkeskolen og på...... Professionshøjskolen Metropol hvor vi er ansat. Kommentaren her retter sig mod en tidligere bragt artikel i MONA, “Det virtuelle læringsrums topologi” af Claus Jessen. Vi argumenterer for at den didaktiske model flipped classrooms brug af video, frem for tavleundervisning, kan frigøre undervisningstid til at arbejde...

  14. Kriisi fataalne oht / Ulrich Beck

    Index Scriptorium Estoniae

    Beck, Ulrich

    2009-01-01

    Sotsioloogi arvates peitub praeguses majanduskriisis võimalus tuua Euroopa Liit uutele alustele, võttes aluseks printsiibi, et poliitika on rahvuslikul tasemel seda edukam, mida euroopalikum, kosmopoliitlikum ta on

  15. Study of wurtzite and zincblende GaN/InN based solar cells alloys: First-principles investigation within the improved modified Becke-Johnson potential

    KAUST Repository

    Ul Haq, Bakhtiar

    2014-09-01

    Wurtzite GaInN alloys with flexible energy gaps are pronounced for their potential applications in optoelectronics and solar cell technology. Recently the unwanted built-in fields caused by spontaneous polarization and piezoelectric effects in wurtzite (WZ) GaInN, has turned the focus towards zinc-blende (ZB) GaInN alloys. To comprehend merits and demerits of GaInN alloys in WZ and ZB structures, we performed a comparative study of the structural, electronic and optical properties of Ga1-xInxN alloys with different In concentration using first-principles methodology with density function theory with generalized gradient approximations (GGA) and modified Becke-Johnson (mBJ) potential. Investigations pertaining to total energy of GaInN for the both phases, demonstrate a marginal difference, reflecting nearly equivalent stability of the ZB-GaInN to WZ-GaInN. The larger ionic radii of indium (In), result in larger values of lattice parameters of Ga1-xInxN with higher In concentration. For In deficient Ga1-xInxN, at first, the formation enthalpies increase rapidly as the In content approaches to 45% in WZ and 47% in ZB, and then decreases with the further increase in In concentration. ZB-Ga1-xInxN alloys exhibit comparatively narrower energy gaps than WZ, and get smaller with increase in In contents. The smaller values of effective masses of free carriers, in WZ phase, than ZB phase, reflect higher carrier mobility and electrical conductivity of WZ-Ga1-xInxN. Moreover wide energy gap of WZ-Ga1-xInxN results in large values of the absorption coefficients comparatively and smaller static refractive indices compared to ZB-Ga1-xInxN. Comparable electronic and optical characteristics of the ZB-Ga1-xInxN to WZ-Ga1-xInxN endorses it a material of choice for optoelectronics and solar cell applications besides the WZ-Ga1-xInxN. © 2014 Elsevier Ltd.

  16. The relevance of food composition data for nutrition surveys in rural Tibet: pilot study in the context of Kashin-Beck Disease

    Directory of Open Access Journals (Sweden)

    Dermience, M.

    2013-01-01

    Full Text Available Kashin-Beck disease (KBD is an endemic and chronic osteochondropathy. This disease principally occurs in the Tibet Autonomous Region and in several provinces of the People's Republic of China. The etiology of the disease remains obscure although environmental factors are assumed to be involved. Diet, in particular, differentiates the rural community, affected by KBD, from the other communities (nomads and city-dwellers, who remain unaffected. In anticipation of a nutrition survey, this study aimed to measure the mineral content (Ca, P, Mg, Fe, Zn, Mn, Cu, Ni, Se, Al, Sr, Mo, Cd, As, Pb, Hg, Cr, and Co of eight Tibetan staple foods and to compare the results against two food composition tables (FCTs. Foods were sampled in twenty households selected from both an endemic and a non-endemic area of rural Tibet. Ten minerals involved in bone metabolism were measured using atomic and molecular spectrometric methods. Results revealed that a very limited number of food/constituent pairs showed a variation in mineral composition during a single year of testing for a given region. In addition, results showed significant differences in mineral content between the endemic and the non-endemic area, especially for wheat flour. Following our analysis of the mineral content of the Tibetan food samples, results were statistically compared with similar foods listed in two food composition tables: the USDA National Nutrient Database (USDA Food Search for Windows, Version 1.0, database version SR23, and the China Food Composition Table (book 1, 2nd edition. More than 50 to 60% of p-values < 0.05 were highlighted, suggesting the inappropriateness of using FCTs as a reference for nutrition surveys in rural Tibet, and emphasizing the need for analysis of traditional foods. Differences were found to be more or less marked depending on the element considered, and calcium content seemed to show the greatest difference. Although it is obviously too early for definite

  17. Relationship between short humerus disease and Kashin Beck disease in Kaschin-Beck disease areas in Tibet%西藏大骨节病病区肱骨短小症与大骨节病关系的分析

    Institute of Scientific and Technical Information of China (English)

    李群伟; 龚弘强

    2016-01-01

    Three new points of view were reported in this study:1.Found out the distribution of KaschinBeck disease (KBD) in Tibet,the complexity of bone disease composition,and the types of osteopathy coexisted which need to be identified;2.The clinical symptoms of KBD in Tibet were significantly different from those in other areas of our country;3.The new clinical subtypes of KBD were found in Tibet,which had humeral shortness and short stature,but with normal hands and feet.This discovery made us understand KBD more profoundly and comprehensively,and promoted the research and prevention work of KBD.%作者报告三个全新的观点:1.西藏大骨节病病区骨病构成十分复杂,有多种骨病并存,应注意鉴别;2.西藏大骨节病的临床表现与内地有本质区别;3.在西藏存在大骨节病新的临床亚型,即以“肱骨短小、身材矮小和手足正常”为主要临床表现的特殊类型.本发现使得对大骨节病的认识更为深刻而全面,对大骨节病的研究和防治具有重要意义.

  18. Line facilities outline

    International Nuclear Information System (INIS)

    This book deals with line facilities. The contents of this book are outline line of wire telecommunication ; development of line, classification of section of line and theory of transmission of line, cable line ; structure of line, line of cable in town, line out of town, domestic cable and other lines, Optical communication ; line of optical cable, transmission method, measurement of optical communication and cable of the sea bottom, Equipment of telecommunication line ; telecommunication line facilities and telecommunication of public works, construction of cable line and maintenance and Regulation of line equipment ; regulation on technique, construction and maintenance.

  19. production lines

    Directory of Open Access Journals (Sweden)

    Jingshan Li

    2000-01-01

    Full Text Available In this work, serial production lines with finished goods buffers operating in the pull regime are considered. The machines are assumed to obey Bernoulli reliability model. The problem of satisfying customers demand is addressed. The level of demand satisfaction is quantified by the due-time performance (DTP, which is defined as the probability to ship to the customer a required number of parts during a fixed time interval. Within this scenario, the definitions of DTP bottlenecks are introduced and a method for their identification is developed.

  20. Validation of the Brazilian Portuguese version of the Beck Depression Inventory-II in a community sample Validação da versão brasileira em português do Inventário de Depressão de Beck-II numa amostra da comunidade

    Directory of Open Access Journals (Sweden)

    Marcio Henrique Gomes-Oliveira

    2012-12-01

    Full Text Available BACKGROUND: The Beck Depression Inventory (BDI is used worldwide for detecting depressive symptoms. This questionnaire has been revised (1996 to match the DSM-IV criteria for a major depressive episode. We assessed the reliability and the validity of the Brazilian Portuguese version of the BDI-II for non-clinical adults. METHODS: The questionnaire was applied to 60 college students on two occasions. Afterwards, 182 community-dwelling adults completed the BDI-II, the Self-Report Questionnaire, and the K10 Scale. Trained psychiatrists performed face-to-face interviews with the respondents using the Structured Clinical Interview (SCID-I, the Montgomery-Åsberg Depression Scale, and the Hamilton Anxiety Scale. Descriptive analysis, signal detection analysis (Receiver Operating Characteristics, correlation analysis, and discriminant function analysis were performed to investigate the psychometric properties of the BDI-II. RESULTS: The intraclass correlation coefficient of the BDI-II was 0.89, and the Cronbach's alpha coefficient of internal consistency was 0.93. Taking the SCID as the gold standard, the cut-off point of 10/11 was the best threshold for detecting depression, yielding a sensitivity of 70% and a specificity of 87%. The concurrent validity (a correlation of 0.63-0.93 with scales applied simultaneously and the predictive ability of the severity level (over 65% correct classification were acceptable. CONCLUSION: The BDI-II is reliable and valid for measuring depressive symptomatology among Portuguese-speaking Brazilian non-clinical populations.OBJETIVOS: O Inventário de Depressão de Beck (IDB é utilizado mundialmente para detectar sintomas depressivos. Este questionário foi revisado (1996 para se adequar aos critérios do DSM-IV para episódio depressivo maior. Avaliamos a confiabilidade e validade da versão I em português-brasileiro do IDB-I em uma amostra não clínica de adultos. MÉTODOS: O questionário foi aplicado em duas

  1. An Improved Study of Electronic Band Structure and Optical Parameters of X-Phosphides (X--B, AL, Ga, In) by Modified Becke-Johnson Potential%An Improved Study of Electronic Band Structure and Optical Parameters of X-Phosphides (X--B, AL, Ga, In) by Modified Becke-Johnson Potential

    Institute of Scientific and Technical Information of China (English)

    Masood Yousaf; M.A. Saeed; R. Ahmed; M.M. Alsardia; Ahmad Radzi Mat Isa; A. Shaari

    2012-01-01

    We report the electronic band structure and optical parameters of X-Phosphides (X=B, AI, Ga, In) by first-principles technique based on a new approximation known as modified Becke-Johnson (roB J). This potential is considered more accurate in elaborating excited states properties of insulators and semiconductors as compared to LDA and GGA. The present calculated band gaps values of BP, AlP, GaP, and InP are 1.867 eV, 2.268 eV, 2.090 eV, and 1.377 eV respectively, which are in close agreement to the experimental results. The band gap values trend in this study is as: E9 (mBJ-GGA/LDA) 〉 E9 (GGA) 〉 Eg (LDA). Optical parametric quantities (dielectric constant, refractive index, reflectivity and optical conductivity) which based on the band structure are aiso presented and discussed. BP, AlP, GaP, and InP have strong absorption in between the energy range 4-9 eV, 4-7 ev, 3-7 eV, and 2-7 eV respectively. Static dielectric constant, static refractive index and coefficient of reflectivity at zero frequency, within mBJ-GGA, are also calculated. BP, AIP, GaP, and InP show significant optical conductivity in the range 5.2-10 eV, 4.3-8 eV, 3.5- 7.2 eV, and 3.2-8 eV respectively. The present study endorses that the said compounds can be used in opto-electronic applications, for different energy ranges.

  2. Extraction of Phenylethanoid Glucosides in Cistanches salsa Beck and It Application in Cigarette%肉苁蓉中苯乙醇糖苷提取及在卷烟中的应用研究

    Institute of Scientific and Technical Information of China (English)

    赵秋蓉; 吴迪; 祖萌萌; 纪旭东; 张峻松

    2012-01-01

    考察了乙醇浓度、提取时间、提取温度对肉苁蓉提取量的影响。实验结果表明:肉苁蓉提取量随着乙醇浓度的升高先是逐渐升高然后又呈现下降的趋势;当乙醇浓度和提取温度一定时,肉苁蓉提取得率随提取时间的延长而增加,当固定肉苁蓉的提取时间和提取用乙醇的浓度,肉苁蓉提取随着提取温度的增加,通过实验表明肉苁蓉提取条件为:乙醇浓度为70%,提取时间为4h,提取温度为70℃。以V(乙酸乙酯):V(甲醇)=15:1的混合溶剂为洗脱剂,用柱层析法分离得到苯乙醇糖苷。通过卷烟加香试验发现,肉苁蓉苯乙醇糖苷能有效地掩盖卷烟杂气,使烟气柔和、余味舒适、回甜感好、香气细腻,对改进烟气质量作用明显。%The affluence of alcohol concentration, extraction time and extraction temperature on the yield of the Cistanches salsa Beck were investigated. The yield of the Cistanches salsa Beck increased with the concentration of alcohol increasing at first, and then decreased as the alcohol concentration keep on increasing. The yield also increased with the extraction time when the alcohol concentration and extraction h temperature were fixed. As the alcohol concentration and extraction time were 4h. The optimum technology of extracting Cistanches salsa Beck was as follows: The extraction time is 4h, the extraction temperature is 70℃ and the alcohol concentration is 70%. The phenylethanoid glucosides in Cistanches salsa Beck were separated with column chromatography, and use V ( ethyl acetate ) :V ( methyl alcohol ) =15:1 for eluent. The phenylethanoid glucosides of Cistanches salsa Beck was applied in cigarettes as tobacco flavorant. The results indicated that it could efficiently reduce offensive odor, make tobacco smoke smooth and fine, and improve smoking quality of the cigarettes.

  3. 基质金属蛋白酶与大骨节病的相关性研究%Correlation of matrix metalloproteinases and Kashin-Beck disease

    Institute of Scientific and Technical Information of China (English)

    陈静宏; 曹峻岭; 王治伦; 马天有; 王梦莹; 何颖; 杨占田; 陈晨

    2014-01-01

    目的:观察基质金属蛋白酶(Matrix metalloproteinases,MMPs)在大骨节病(Kashin-Beck disease, KBD)儿童软骨和低硒条件下T-2毒素中毒大鼠软骨中的表达,以及T-2毒素对软骨细胞MMP-13启动子的激活作用,探讨MMPs与KBD发病的关系。方法以5例尸检KBD儿童(KBD组)和5例因车祸死亡或畸形手术的正常儿童(对照组)手指节软骨为研究对象,采用免疫组织化学染色的方法,检测软骨中MMP-1和MMP-13的表达。雄性健康SD大鼠32只,按体质量采用随机数字表法分为常规饲料组、低硒饲料组,每组各16只。常规饲料硒含量为101.500μg/kg,低硒饲料硒含量为1.118μg/kg。大鼠低硒动物模型建造成功后,常规饲料组分为常规组和常规+T-2组,低硒饲料组分为低硒组和低硒+T-2组,每组8只。 T-2毒素(100μg·kg-1·d-1)灌胃饲养,30 d后处死大鼠,取左侧膝关节,用免疫组织化学染色方法检测大鼠关节软骨细胞MMP-1和MMP-13的表达水平。体外培养人软骨细胞系C28/I2细胞,分成空载体组、MMP-13启动子载体组、MMP-13启动子载体+T-2毒素20μg/L组、MMP-13启动子载体+T-2毒素40μg/L组,将-1602/+20-MMP13-Luc启动子重组荧光素酶报导质粒以及空载体瞬时转染C28/I2细胞,24 h后,加入20μg/L和40μg/L T-2毒素,继续培养24 h,用荧光素酶报告基因检测T-2毒素对MMP-13启动子的作用。结果 KBD组儿童关节软骨表层和中层MMP-1表达阳性率[(29.73±10.12)%、(28.27±0.91)%]均高于对照组[(2.47±0.11)%、(0.00±0.00)%,P均<0.05],KBD组儿童关节软骨表层和中层 MMP-13表达阳性率[(13.21±4.32)%、(41.85±6.32)%]明显高于对照组[(5.72±0.31)%、(0.00±0.00)%,P均<0.05]。低硒+T-2毒素组大鼠关节软骨MMP-13在表层和中层表达水平[(13.21±4.32)%、61.85±8.68)%]明显高于常规组和低硒组[(2.43±0.22

  4. Adaptación española del Inventario para la Depresión de Beck-II (BDI-II: 3. Propiedades psicométricas en pacientes con trastornos psicológicos

    Directory of Open Access Journals (Sweden)

    JESÚS SANZ

    2005-01-01

    Full Text Available Se presentan datos sobre la fiabilidad y validez de la adaptación española del Inventario para la Depresión de Beck-II (BDI-II; Beck, Steer y Brown, 1996, obtenidos con una muestra de 305 pacientes ambulatorios con diversos diagnósticos psicopatológicos según el DSM-IV. El coeficiente alfa de fiabilidad fue alto (alfa = 0,89. Las correlaciones con otras medidas autoaplicadas y heteroaplicadas de depresión fueron elevadas y significativamente mayores que la correlación con una medida de ansiedad, lo que avala la validez convergente y discriminante del BDI-II, respectivamente. Respecto a la validez de criterio, los resultados demostraron que los pacientes diagnosticados con un trastorno depresivo mayor tenían niveles de depresión más elevados, medidos con el BDI-II, que los pacientes de otros grupos diagnósticos, aunque no hubo diferencias con los pacientes con trastornos de personalidad. Finalmente, la validación factorial del BDI-II proporcionó una solución bifactorial (factor somático- motivacional y factor cognitivo que coincide con la hallada en estudios previos. Se concluye que el BDI es un instrumento válido de detección y cuantificación de síntomas depresivos en pacientes, si bien su utilidad como herramienta para el diagnóstico diferencial de la depresión es una cuestión pendiente de investigación.

  5. Peripheral intravenous line - infants

    Science.gov (United States)

    PIV - infants; Peripheral IV - infants; Peripheral line - infants; Peripheral line - neonatal ... A peripheral intravenous line (PIV) is a small, short, plastic tube, called a catheter. A health care provider puts ...

  6. The Last Line Effect

    NARCIS (Netherlands)

    Beller, M.; Zaidman, A.E.; Karpov, A.

    2015-01-01

    Micro-clones are tiny duplicated pieces of code; they typically comprise only a few statements or lines. In this paper, we expose the “last line effect,” the phenomenon that the last line or statement in a micro-clone is much more likely to contain an error than the previous lines or statements. We

  7. Adaptación española del Inventario para la Depresión de Beck-II (BDI-II: 2. Propiedades psicométricas en población general

    Directory of Open Access Journals (Sweden)

    JESÚS SANZ

    2003-01-01

    Full Text Available Se presentan por primera vez datos normativos y de fiabilidad y validez factorial de la adaptación española del Inventario para la Depresión de Beck-II (BDI-II; Beck, Steer y Brown, 1996 obtenidos con una muestra de 470 adultos seleccionados de la población general española. La fiabilidad de consistencia interna del BDI-II fue elevada (coeficiente alfa de 0,87. Los análisis factoriales indicaron que el BDI-II mide una dimensión general de depresión compuesta por dos factores altamente relacionados, uno cognitivo-afectivo y otro somático-motivacional. En términos de consistencia interna y validez factorial, el BDI-II parece mejor instrumento para evaluar sintomatología depresiva en población general que su predecesor, el BDI-IA. La distribución de la puntuación total del BDI-II fue similar a la encontrada en estudios previos, con una media superior en 2 puntos a la que se suele obtener con el BDI-IA, lo que justifica incrementar las puntuaciones para definir las categorías de gravedad de la depresión. Además, se hallaron diferencias significativas en tales puntuaciones en función del sexo, la edad, el nivel de educación y el estado civil: las mujeres puntuaban más alto que los varones, las personas mayores de 60 años más que las personas de menor edad, las personas con estudios básicos o sin estudios más que las personas con estudios secundarios o universitarios, y las personas divorciadas, separadas o viudas más que las personas casadas o conviviendo con una pareja. Se ofrecen puntuaciones normativas para la muestra total, y se discute su utilidad para evaluar la significación clínica de los resultados de los tratamientos contra la depresión.

  8. Peripheral intravenous line (image)

    Science.gov (United States)

    A peripheral intravenous line is a small, short plastic catheter that is placed through the skin into a vein, ... or foot, but occasionally in the head. A peripheral intravenous line is used to give fluids and ...

  9. Peripheral arterial line (image)

    Science.gov (United States)

    A peripheral arterial line is a small, short plastic catheter placed through the skin into an artery of the arm or leg. The purpose of a peripheral arterial line is to allow continuous monitoring of ...

  10. Lined canvas paintings

    DEFF Research Database (Denmark)

    Krarup Andersen, Cecil

    2013-01-01

    humidity. Contrary to the usual assumptions it was found that wax-resin linings on linen canvas responded to high relative humidity (RH) with higher contraction forces than was the case before lining. The contraction was evident at RH levels as low as 65%. Because the adhesive fills the voids in the linen...... and textiles were examined. These included the adhesives Beva 371, Plextol D360, wax-resin, and glue-paste. The lining textiles were linen and polyester sailcloth. A naturally aged canvas painting and a modern painting were lined using these materials and methods. Testing of the lined paintings included uni...... canvas (both the original and the lining canvas), the contraction due to fiber swelling was immediate. There is some evidence that the same observation applies for liquid Beva in linen canvas. The results showed further, that glue-paste lining on a linen canvas offered significant support to a painting...

  11. THE SURVEY OF CHILDREN WITH KASHIN-BECK DISEASE IN SICHUAN PROVINCE IN 2009%2009年四川省儿童大骨节病病情现状调查

    Institute of Scientific and Technical Information of China (English)

    李富忠; 邓佳云; 黄慧; 陈开华; 李津蜀

    2011-01-01

    [目的]了解四川省儿童大骨节病病情现状及相关危险因素.[方法]调查74个大骨节病病区村的自然环境和社会经济等基础资料,采用临床和X缦拍片的方法,调查儿童大骨节病病情现状,采集儿童发样及当地主食粮惮进行含硒量检测.[结果]临床检查7~12岁儿童4530名,检出1度患者8例,临床检出率为0.18%;拍摄7~12岁儿童右手X线片4530张,X线阳性片83张,阳性检出率平均为1.83%(0~13.73%),病情活跃程度指数平均为1.30,病情严重程度指数平均为1.83.儿童发硒水平平均为(0.26±0.07)mg/kg.粮食硒水平平均为(0.0067±0.0018)mg/kg,T2毒素含量平均为31.39 ppb(2.67~101.14).[结论]2009年四川省儿童大骨节病病情较为稳定,处于控制或基本控制范围,仅局部地区病情活跃,与主食种类及来源关系密切.%[Objective] To understand children's condition of Kaschin-Beck disease (KBD) and risk factors in Sichuan Province. [Methods] Surveyed 74 villages of Kashin-Beck disease area's natural environment and socio-economic and other basic information. Did clinical detection and shoot right hand X-ray for children, collected children's hair and staple samples to test the level of selenium in these villages. [Results] 4 530 children aged 7-12 year underwent clinical examination, 8 cases were detected as grade I patients, clinical detection rate was 0.18%; 4 530 children aged 7-12 year underwent X-ray examination, 83 X-ray films were positive. The average positive detectable rate was 1.83% (0-13.73%), index of active degree was 1.30, index of severity degree was 1.83. The average selenium level in hair of children was (0.26 ± 0.07) rag/kg. The average selenium level in staple was (0.006 7 ± 0.001 8) mg/kg, the average T2 toxin content in grain was 31.39ppb (2.67-101.14). [Conclusion] The children KBD condition is stable, which is in controlled or basically controlled state in Sichuan in 2009. Only local areas are with

  12. 西藏藏族自治区大骨节病病情调查结果分析%Analysis of a survey result on the state of Kashin-Beck disease in Tibet

    Institute of Scientific and Technical Information of China (English)

    赵生成; 白玛次旺; 扎西桑珠; 朗杰

    2011-01-01

    distribution of Kashin-Beck disease(KBD) in Tibet, and assess the disease status. Methods Between 2007 and 2008, a survey was done on KBD epidemiology which was carried out in four prefectures of 26 counties according to the east, south, west, north and center in Nakchu,Lhoca, Nyingtri and Shigatse districts of Tibet, with towns and villages as baseline survey points. According to the KBD e survey scheme, KBD clinical examination for adults was also carried out and at the same time clinical and right hand anteroposterior X-ray examinations were given to children aged 4 - 13. The partition of endemic area was based on the criteria of national standards for Kashin-Beck disease diagnoses《GB 16395-1996》. Slight KBD area:clinical prevalence of Kashin-Beck disease grade Ⅰ and above was less than 10% or X-ray detection rate < 10% of children; the moderate prevalent KBD area: clinical prevalence of Kashin-Beck disease grade Ⅰ and above was between 10% and 20% or X-ray detection rate was between 10% and 30% of children; severe KBD area: clinical prevalence of KBD grade Ⅰ and above was more than 20% or X-ray detection rate was higher than 30% of children.Results A total of 108 townships of 26 counties were surveyed, 14 686 adults were clinically examined, cases detection of grade Ⅰ and above were 637 people, the prevalence was 4.34%, and no case of grade Ⅲ was detected.Of 5769 children's right anteroposterior X-ray film, 102 were detected positive; the prevalence rate was 1.77%.Metaphysis was affected in most of the child cases, which accounting for 89.2% (91/102). Amongst all the counties, there were 10 counties, clinical detection rate of adult KBD was 0, and children's X-ray detection rate of KBD was also 0. In 1 county the clinical prevalence rate for adults KBD was 0 and X-ray detection rate for children was 3.66(7/191 ). In 12 counties the clinical prevalence rate for adults KBD was between 1.03% and 7.54%, X-ray detection rate for

  13. Inventário de Depressão de Beck (BDI e Escala de Avaliação de Depressão de Hamilton (HAM-D em pacientes com epilepsia

    Directory of Open Access Journals (Sweden)

    Guilherme Nogueira M. de Oliveira

    2011-01-01

    Full Text Available OBJETIVO: Determinar os pontos de melhor sensibilidade e especificidade do Inventário de Depressão de Beck (BDI e da Escala de Avaliação de Depressão de Hamilton (HAM-D no diagnóstico de depressão associada à epilepsia. MÉTODOS: Setenta e três pacientes de um centro de referência no tratamento da epilepsia foram submetidos à avaliação neuropsiquiátrica. Foram colhidos dados clínicos e sociodemográficos, sendo utilizados os seguintes instrumentos: entrevista clínica estruturada (MINI-PLUS para diagnóstico psiquiátrico conforme o DSM-IV, HAM-D e BDI. RESULTADOS: No momento da entrevista, 27,4% dos pacientes estavam deprimidos e 37% preenchiam critérios para diagnóstico de depressão maior ao longo da vida. A análise da curva ROC indicou que o ponto de corte em 16 (> 16 para o BDI (sensibilidade de 94,4%, especificidade de 90,6% e em 16 (> 16 para a HAM-D (sensibilidade de 95%, especificidade de 75,5% representou dicotomização ótima entre deprimidos e não deprimidos. Ambos os instrumentos apresentaram um valor preditivo negativo superior a 95%. CONCLUSÃO: A frequência de depressão maior é elevada em pacientes com epilepsia. BDI e a HAM-D podem auxiliar o clínico na identificação da depressão associada à epilepsia, diminuindo seu subdiagnóstico.

  14. High energy beam lines

    Science.gov (United States)

    Marchetto, M.; Laxdal, R. E.

    2014-01-01

    The ISAC post accelerator comprises an RFQ, DTL and SC-linac. The high energy beam lines connect the linear accelerators as well as deliver the accelerated beams to two different experimental areas. The medium energy beam transport (MEBT) line connects the RFQ to the DTL. The high energy beam transport (HEBT) line connects the DTL to the ISAC-I experimental stations (DRAGON, TUDA-I, GPS). The DTL to superconducting beam (DSB) transport line connects the ISAC-I and ISAC-II linacs. The superconducting energy beam transport (SEBT) line connects the SC linac to the ISAC-II experimental station (TUDA-II, HERACLES, TIGRESS, EMMA and GPS). All these lines have the function of transporting and matching the beams to the downstream sections by manipulating the transverse and longitudinal phase space. They also contain diagnostic devices to measure the beam properties.

  15. Series Transmission Line Transformer

    Science.gov (United States)

    Buckles, Robert A.; Booth, Rex; Yen, Boris T.

    2004-06-29

    A series transmission line transformer is set forth which includes two or more of impedance matched sets of at least two transmissions lines such as shielded cables, connected in parallel at one end ans series at the other in a cascading fashion. The cables are wound about a magnetic core. The series transmission line transformer (STLT) which can provide for higher impedance ratios and bandwidths, which is scalable, and which is of simpler design and construction.

  16. Airborne Fraunhofer Line Discriminator

    Science.gov (United States)

    Gabriel, F. C.; Markle, D. A.

    1969-01-01

    Airborne Fraunhofer Line Discriminator enables prospecting for fluorescent materials, hydrography with fluorescent dyes, and plant studies based on fluorescence of chlorophyll. Optical unit design is the coincidence of Fraunhofer lines in the solar spectrum occurring at the characteristic wavelengths of some fluorescent materials.

  17. X-ray observation on knee joint space of adults' Kaschin-Beck disease%成人大骨节病膝关节间隙的X线观察

    Institute of Scientific and Technical Information of China (English)

    刘辉; 李德安; 邓晴; 高本; 刘宁

    2009-01-01

    Objective To observe and scale knee joint space of the patients who suffered adults' Kaschin-Beck disease (KBD) in Shangzhi City of Heilongjiang Province in order to acquire basic knowledge for upcoming intervention trial. Methods Clinical test was proceeded in adults aged above 40 in Guanghui Village of Shangzhi City in 2007. In typical patients, bilateral knee X-ray was taken and knee joint space was scaled. Three points were chosen on inner and outer epicondyle of each knee and results were recorded. Results There were 307 peoples over the age of 40 in the village. Two hundred eighty-two accepted clinical test, in a rate of 91.9%. Eighty out of 282 suffered KBD, accounting for 28.4%. When the patients' condition became more serious, measurements from flank, middle, inside points on outer epicondyle of joint space presented a narrowing trend [degree Ⅰ: (5.85±0.17), (4.84±0.17), (4.36±0.18)mm; degree Ⅱ: (5.11±0.43), (4.24±0.34), (3.48±0.28)nun; degree Ⅲ: (3.59± 0.78), (3.10±0.56), (2.14±0.62)mm; Fflank,middle,inside= 6.547,5.372,10.302, all P 0.05]. Joint space 0.05].关节间隙<5.00 mm的测量点共618个,内上髁关节面测量点(363个)明显多于外上髁关节面(255个),二者比较差异有统计学意义(χ2=9.59,P<0.05).结论 光辉村成年大骨节病病例较多;伴随病情加重患者膝关节间隙呈变窄趋势,尤以外上髁表现明显;但患者以内上髁狭窄病变为多见.

  18. Trial and Evaluation of Beck Depression Inventory for Teachers in Disaster Area%Beck抑郁问卷在灾区教师中的试用及评价

    Institute of Scientific and Technical Information of China (English)

    游永恒; 于少萍; 梁斌

    2011-01-01

    To evaluate the psychometric properties of the Beck depression inventory (BDI), and use BDI for determination of the 750 disaster area teachers and to analyze the reliability and validity of BDI.Results show that all items tested on the degree of depression show good discernment, scale Cronbach's α coefficient is 0.915, Spearman-Brown split-half reliability coefficient is 0.864.Factor analysis indicates that somatic disorder and depression are two major factors.This is consistent with the definition of depression.Butthe difference of load between above two factors in sin(E), self - blame( H), crying(J), weight loss(S) is less than 0.2, which shows the poor construction validity.Depression scores and overall well-being in all dimensions and total score show significantly negative correlation (r= -0.416 ~ -0.577,P <0.001 ), which indicates that the BDI scale has good criterion vahdity; BDI Chinese translation is generally stable, but the construction validity is unsatisfactory and the attention should be paid in applications.%为评价Beck抑郁问卷(BDI)的心理测量特性.使用BDI测定了750名灾区教师,分析BDI的信度和效度.结果表明所有题项对被试的抑郁程度均有良好的鉴别力,量表的Cronbach's a系数为0.915,Spearman-Brown分半信度系数为0.864.因子分析后共得到躯体障碍和抑郁情绪两大因子,与心理学中对抑郁的定义较为一致.但罪感(E)、自责(H)、痛哭(J)、体重减轻(S)等4个条目在两个因子上的载荷差值均小于0.2,表明量表的结构效度欠佳.抑郁总分与总体幸福感各个维度及总分均存在显著的负相关(r=-0.416~-0.577,P<0.001),表明BDI量表具有较好的校标效度;BDI中译本总体稳定,但结构效度欠理想,在使用中应引起注意.

  19. Extremely low sulfate availability — a new explaination of pathopoiesis of Kaschin-Beck Disease%极其低下的硫酸根可利用度—大骨节病病因新解

    Institute of Scientific and Technical Information of China (English)

    关放; 王治伦; 陈静宏

    2013-01-01

    Kaschin - Beck disease ( KBD) is an endemic and degenerative osteoarthropathic disease. Currently the etiology of the disease is unclear. This article reviews the effects of extremely low sulphate availability in the diets of residents in the regions of high occurrence of the disease. KBD is associated with an abnormal metabolism of proteoglycans in the articular and epiphyseal plate cartilages and behaves as undersulfation and enhanced catabolism similar to osteoarthritis. Low sulfate levels can decrease the incorporation of sulfate into proteoglycans synthesized by chondrocytes and can enhance the catabolism of the proteoglycans. The extremely low sulphate availability pathopoiesis hypothesis can reasonably explain the main epidemiological phenomena of KBD, i. e. , a severe Se deficiency resulting in the impairment of methionine transsulfuration. Mouldy foods and drinking water with abundant phenol acid compounds further decrease the originally low sulphate availability in KBD patients and promote the occurrence of KBD.%大骨节病是一种地方性、畸形性骨关节病,至今病因不明.本文论述了大骨节病饮食中过低的硫酸根可利用度在大骨节病发生中的作用.大骨节病表现出蛋白聚糖低硫酸化和增强的分解代谢特征,而低硫酸根培养液能降低软骨细胞合成的糖胺聚糖中硫酸根的掺入量,同时体外实验表明过低的硫酸根可利用度可增强软骨蛋白聚糖的分解代谢.大骨节病过低的硫酸根可利用度病因说能够较合理地解释主要的大骨节病流行病学现象,如严重的硒缺乏导致蛋氨酸转硫作用的损害,霉变的粮食和富含酚酸类化合物的饮水进一步降低了大骨节病区人群本来就很低下的硫酸根可利用度,导致了大骨节病的发生.

  20. Wood pole overhead lines

    CERN Document Server

    Wareing, Brian

    2005-01-01

    This new book concentrates on the mechanical aspects of distribution wood pole lines, including live line working, environmental influences, climate change and international standards. Other topics include statutory requirements, safety, profiling, traditional and probabilistic design, weather loads, bare and covered conductors, different types of overhead systems, conductor choice, construction and maintenance. A section has also been devoted to the topic of lightning, which is one of the major sources of faults on overhead lines. The book focuses on the effects of this problem and the strate

  1. Illustrating the Euler Line.

    Science.gov (United States)

    Rubillo, James M.

    1987-01-01

    Euler's discovery about the centroid of a triangle trisecting the line segment joining its circumference to its orthocenter is discussed. An activity that will help students review fundamental concepts is included. (MNS)

  2. Veterans Crisis Line

    Science.gov (United States)

    ... also access and download the Veterans Crisis Line Branding Guidelines for guidance on how to consistently apply ... Program ADMINISTRATION Veterans Health Administration Veterans Benefits Administration National Cemetery Administration U.S. Department of Veterans Affairs | 810 ...

  3. Kansas Electric Transmission Lines

    Data.gov (United States)

    Kansas Data Access and Support Center — This data set is a digital representation of the EletcircTransmission lines for the State of Kansas as maintained by the Kansas Corporation Commission. Data is...

  4. Minnesota County Boundaries - lines

    Data.gov (United States)

    Minnesota Department of Natural Resources — Minnesota county boundaries derived from a combination of 1:24,000 scale PLS lines, 1:100,000 scale TIGER, 1:100,000 scale DLG, and 1:24,000 scale hydrography...

  5. On-Line and Off-Line Assessment of Metacognition

    Science.gov (United States)

    Saraç, Seda; Karakelle, Sema

    2012-01-01

    The study investigates the interrelationships between different on-line and off-line measures for assessing metacognition. The participants were 47 fifth grade elementary students. Metacognition was assessed through two off-line and two on-line measures. The off-line measures consisted of a teacher rating scale and a self-report questionnaire. The…

  6. Product Line Design

    OpenAIRE

    Anderson, Simon P.; Celik, Levent

    2014-01-01

    We characterize the product line choice and pricing of a monopolist as the upper envelope of net marginal revenue curves to the individual product demand functions. The equilibrium product varieties to include in a product line are those yielding the highest upper envelope. In a central case (corresponding to a generalized vertical differentiation framework), the equilibrium range of varieties is exactly the same as the first-best socially optimal range. These upper envelope and first-best op...

  7. 2012年山东省大骨节病病情调查结果分析%Analysis of investigating results of Kashin-Beck disease in Shandong Province in 2012

    Institute of Scientific and Technical Information of China (English)

    云中杰; 李伟国; 尹玉岩; 高杰; 潘恩群; 王波; 边建朝; 陈培忠

    2014-01-01

    目的:了解山东省大骨节病的病情和防控措施落实现状,为消除大骨节病考核验收工作提供科学依据。方法按照国家《2012年医改地方病防治项目实施方案》和《2012年山东省医改大骨节病防治项目技术实施方案》的要求,在青州市的4个病区乡镇中,每个乡镇抽取3个病区村作为调查点,了解大骨节病防控措施落实情况,包括调查点的人口、耕种、主食以及防控措施落实等情况。对每个调查村的全部7~12岁儿童进行临床和X线摄片检查,人数少于50人时,在调查村附近再增加1个病区村,并检查该村的全部7~12岁儿童。分别计算临床Ⅰ度、Ⅱ度、Ⅲ度检出例数及检出率;X线阳性检出率;干骺、骨骺、骨端、腕骨、三联征检出例数及检出率。临床和X线诊断依据《大骨节病诊断标准》(WS/T 207-2010)。结果共调查了14个病区村。近3年病区未实施补硒措施,也未实行搬迁和异地育人;病区农作物以小麦和玉米为主,居民主食以面粉为主,占80%以上,且购食外地粮仅占11%;退耕还林(草)面积占原有耕地的0.32%(36/11151);改种经济作物面积占原有耕地的1.17%(131/11151)。临床和X线摄片检查7~12岁儿童共536名,临床检查未检出大骨节病患儿;X线摄片检查,检出阳性患儿6例,均为单纯干骺端改变,平均X线检出率为1.12%(6/536),未检出骨骺、骨端及腕骨阳性患儿。结论山东省大骨节病病情得到了有效控制,但由于大骨节病病因未明,仍需建立可持续控制大骨节病的长效机制,进一步完善监测体系,做好病情动态监测工作。%Objective To understand the status quo of the illness situation and the implementation of prevention and control measures on Kashin-Beck disease( KBD ) in Shandong Province , and provide a scientific basis for assessment and acceptance of the work

  8. Transmission line capital costs

    International Nuclear Information System (INIS)

    The displacement or deferral of conventional AC transmission line installation is a key benefit associated with several technologies being developed with the support of the U.S. Department of Energy's Office of Energy Management (OEM). Previous benefits assessments conducted within OEM have been based on significantly different assumptions for the average cost per mile of AC transmission line. In response to this uncertainty, an investigation of transmission line capital cost data was initiated. The objective of this study was to develop a database for preparing preliminary estimates of transmission line costs. An extensive search of potential data sources identified databases maintained by the Bonneville Power Administration (BPA) and the Western Area Power Administration (WAPA) as superior sources of transmission line cost data. The BPA and WAPA data were adjusted to a common basis and combined together. The composite database covers voltage levels from 13.8 to 765 W, with cost estimates for a given voltage level varying depending on conductor size, tower material type, tower frame type, and number of circuits. Reported transmission line costs vary significantly, even for a given voltage level. This can usually be explained by variation in the design factors noted above and variation in environmental and land (right-of-way) costs, which are extremely site-specific. Cost estimates prepared from the composite database were compared to cost data collected by the Federal Energy Regulatory Commission (FERC) for investor-owned utilities from across the United States. The comparison was hampered because the only design specifications included with the FERC data were voltage level and line length. Working within this limitation, the FERC data were not found to differ significantly from the composite database. Therefore, the composite database was judged to be a reasonable proxy for estimating national average costs

  9. 大骨节病健康相关生存质量架构的质性研究%Framework for assessing health related quality of life of Kaschin-Beck disease: a qualitative research

    Institute of Scientific and Technical Information of China (English)

    方华; 郭雄; 夏传涛; 刘明; 任峰玲; 董睿

    2012-01-01

    目的 建立我国大骨节病健康相关生存质量的架构,以期反映出大骨节病对患者生存质量的影响.方法 运用质性描述性研究,采用世界卫生组织(WHO)对健康及生存质量的定义发展半开放式问题,通过焦点团体访谈和面对面访谈,收集陕西省大骨节病患病率较高的病区麟游县、永寿县29名大骨节病专家和48名大骨节病患者的意见,并用WHO生存质量问卷(WHOQOL-100)的架构作为模板,用内容模板法分析访谈资料.结果 大骨节病健康相关生存质量架构包含了4个领域:身体活动能力、家庭/社会支持、经济、心理状态;反映在11个方面:疼痛与不适,身体功能与活动限制、饮食与睡眠、社会关系、对家庭责任的担忧、社会支持、经济状况、住房及周围环境、对外貌的担心、精神状况、总的健康状况;共有69个条目.结论 建立了大骨节病健康相关生存质量的架构,该架构凸显了大骨节病对患者生存质量的影响,特异性较强.%Objective To identify the framework for assessing health related quality of life(HRQOL) of Kaschin-Beck disease(KBD),in order to reflect the impact of KBD on quality of life in patients with the disease.Methods Qualitative descriptive research was adopted.Semi-open ended questions were developed by using the World Health Organization(WHO) definitions of health and quality of life.Group interview and face to face interviews were conducted on 48 patients with KBD and 29 health care experts on KBD in Linyou and Yongshou counties,Shaanxi province,which were higher prevalence areas of KBD.Content template analysis was conducted and the template was based on the WHOQOL-100's framework.Results The framework of HRQOL for KBD included four domains:physical activity,familial/social support,economic and psychological state.There were also eleven facets which were:pain and discomfort,physical function and activity limitation,diet and sleeping

  10. Along the line

    DEFF Research Database (Denmark)

    Dinesen, Cort Ross

    2011-01-01

    and invisible but an abstraction essential for noting a difference or marking a place on a map. In the same way, a stroke in a sketch or a line in the sand is a manifestation of our ability to draw a boundary that both includes and excludes information. Where the line makes the birth of an idea visible...... reduction into an assertion, that we can retain the heterogeneity of material though the process of abstraction. We are comfortable with this relationship, we understand it; it is such a compelling process that when we draw, we become absorbed by the simplicity of the event....

  11. Analysis of () Line Shape

    Indian Academy of Sciences (India)

    Xu Wei; Li Yan

    2014-09-01

    The particles energy distribution is derived directly from the () line shape, which is measured by two sets of OMA. The dissociative excitation of molecular is dominating when the local electron temperature is > 10 eV. The line shape is also simulated by the Monte–Carlo method, the molecular dissociation contributes to 57% neutral atoms and 53% emission intensity in front of the limiter, and 85% neutral atoms and 82% emission intensity in front of the wall. The processes of atoms and molecules influence on the energy balance is discussed in SOL, the power loss from molecular dissociation is 6 × 104 kW at SOL.

  12. Building with a Line

    Science.gov (United States)

    Hubbert, Beth

    2011-01-01

    Architecture is a versatile, multifaceted area to study in the artroom with multiple age levels. It can easily stimulate a study of basic line, shape, and various other art elements and principles. It can then be extended into a more extensive study of architectural elements, styles, specific architects, architecture of different cultures, and…

  13. Draw the Line!

    DEFF Research Database (Denmark)

    Draw the Line! International Conference, Copenhagen 2008 Papers, proceedings and recommendations is the second publication of the international three year long project "Understanding Puzzles in the Gendered European Map" (UPGEM), which is financed by the European Commission. In this publication w...... self-evident cultural patterns that impede the gender balance in academia....

  14. Developing Green Line Products

    DEFF Research Database (Denmark)

    Muñoz-Marin, Ana Maria; Lassen, Astrid Heidemann; Poulsen, Søren Bolvig;

    2011-01-01

    This publication is based on the Master thesis “User-driven ecoinnovation process: Towards the implementation of the Green product line at JELD-WEN” written by Ana Maria Muñoz-Marin as her Graduation Project for the MSc. Global Innovation Management degree. The company-based experiment was carried...

  15. Subjective poverty line definitions

    NARCIS (Netherlands)

    J. Flik; B.M.S. van Praag (Bernard)

    1991-01-01

    textabstractIn this paper we will deal with definitions of subjective poverty lines. To measure a poverty threshold value in terms of household income, which separates the poor from the non-poor, we take into account the opinions of all people in society. Three subjective methods will be discussed a

  16. Redrawing the Poverty Line

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    A new threshold means more than 100 million impoverished people will be eligible for government assistance as China continues to battle poverty The Chinese Government has decided to set the nation’s poverty line at an annual per-capita net income

  17. Mixed lubricated line contacts

    NARCIS (Netherlands)

    Faraon, Irinel Cosmin

    2005-01-01

    The present work deals with friction in mixed lubricated line contacts. Components in systems are becoming smaller and due to, for instance power transmitted, partial contact may occur. In industrial applications, friction between the moving contacting surfaces cannot be avoided, therefore it is ess

  18. LEAR: antiproton extraction lines

    CERN Multimedia

    Photographic Service

    1992-01-01

    Antiprotons, decelerated in LEAR to a momentum of 100 MeV/c (kinetic energy of 5.3 MeV), were delivered to the experiments in an "Ultra-Slow Extraction", dispensing some 1E9 antiprotons over times counted in hours. Beam-splitters and a multitude of beam-lines allowed several users to be supplied simultaneously.

  19. The Bicycle Assembly Line Game

    Science.gov (United States)

    Klotz, Dorothy

    2011-01-01

    "The Bicycle Assembly Line Game" is a team-based, in-class activity that helps students develop a basic understanding of continuously operating processes. Each team of 7-10 students selects one of seven prefigured bicycle assembly lines to operate. The lines are run in real-time, and the team that operates the line that yields the…

  20. Formation depths of Fraunhofer lines

    CERN Document Server

    Gurtovenko, E A

    2015-01-01

    We have summed up our investigations performed in 1970--1993. The main task of this paper is clearly to show processes of formation of spectral lines as well as their distinction by validity and by location. For 503 photospheric lines of various chemical elements in the wavelength range 300--1000 nm we list in Table the average formation depths of the line depression and the line emission for the line centre and on the half-width of the line, the average formation depths of the continuum emission as well as the effective widths of the layer of the line depression formation. Dependence of average depths of line depression formation on excitation potential, equivalent widths, and central line depth are demonstrated by iron lines.

  1. Post-critical behavior of Beck`s column with a tip mass

    DEFF Research Database (Denmark)

    Andersen, S. B.; Thomsen, Jon Juel

    2002-01-01

    by linear theory. A similar change in bifurcation is found to occur with increased external (as compared to internal) damping, and with a shortening in column length. These effects are not revealed by linear modeling and analysis, which may consequently fail to predict even qualitatively the real critical...... oscillations. Bifurcation diagrams are given, showing how the vibration amplitude changes with follower load and other parameters. These results agree closely with numerical simulation. It is found that sufficiently large values of tip mass rotary inertia can change the primary bifurcation from supercritical...

  2. Ulrich Beck : riskiühiskond / Ulrich Beck ; tõlk. Külli-Riin Tigasson

    Index Scriptorium Estoniae

    Beck, Ulrich

    2004-01-01

    Katkend raamatust "Risikogesellschaft". Autori hinnangul on tänapäeval poliitikute roll ühiskonna arengu otsustamisel kahanenud, sest võtmelise tähtsusega otsuseid teevad teadlased ja äriühingute juhid. Poliitika ja mittepoliitika vahetavad kohad

  3. by Lifting Line Method

    Directory of Open Access Journals (Sweden)

    Horia Dumitrescu

    1998-01-01

    Full Text Available The vortex model of propellers is modified and applied to the high-speed horizontal axis turbines. The turbine blades are replaced by lifting lines and trailing vortices which shed along the blade span. The model is not a free wake model, but it is still a nonlinear one which should be solved iteratively. In addition to the regular case where the trailing vortices are constrained to distribute along a helical surface, another version, where each trailing vortex sheding from the blade grows as a free helical vortex line, is also included. Performance parameters are calculated by application of the Biot-Savart law along with the Kutta-Joukowski theorem. Predictions are, shown to compare favorably with existing numerical data from more involved free wake methods, but require less computational effort. Thereby, the present method may be a very useful tool for calculating the aerodynamic loads on horizontal-axis wind turbine blades.

  4. Nonlinear magnetoinductive transmission lines

    CERN Document Server

    Lazarides, Nikos; Tsironis, G P

    2011-01-01

    Power transmission in one-dimensional nonlinear magnetic metamaterials driven at one end is investigated numerically and analytically in a wide frequency range. The nonlinear magnetic metamaterials are composed of varactor-loaded split-ring resonators which are coupled magnetically through their mutual inductances, forming thus a magnetoiductive transmission line. In the linear limit, significant power transmission along the array only appears for frequencies inside the linear magnetoinductive wave band. We present analytical, closed form solutions for the magnetoinductive waves transmitting the power in this regime, and their discrete frequency dispersion. When nonlinearity is important, more frequency bands with significant power transmission along the array may appear. In the equivalent circuit picture, the nonlinear magnetoiductive transmission line driven at one end by a relatively weak electromotive force, can be modeled by coupled resistive-inductive-capacitive (RLC) circuits with voltage-dependent cap...

  5. Adaptive method of lines

    CERN Document Server

    Saucez, Ph

    2001-01-01

    The general Method of Lines (MOL) procedure provides a flexible format for the solution of all the major classes of partial differential equations (PDEs) and is particularly well suited to evolutionary, nonlinear wave PDEs. Despite its utility, however, there are relatively few texts that explore it at a more advanced level and reflect the method''s current state of development.Written by distinguished researchers in the field, Adaptive Method of Lines reflects the diversity of techniques and applications related to the MOL. Most of its chapters focus on a particular application but also provide a discussion of underlying philosophy and technique. Particular attention is paid to the concept of both temporal and spatial adaptivity in solving time-dependent PDEs. Many important ideas and methods are introduced, including moving grids and grid refinement, static and dynamic gridding, the equidistribution principle and the concept of a monitor function, the minimization of a functional, and the moving finite elem...

  6. Line managers as marketers.

    Science.gov (United States)

    Rynne, T J

    1986-09-01

    Many hospital administrators and boards of directors, having overcome their initial opposition to advertising and hired a marketing professional, are wondering why their marketing programs have not accomplished all that they had hoped. The answer lies in their perception of who is responsible for marketing. Marketing is not a specialty separate from the disciplines of management--it is a basic management skill. Its goal is to satisfy the customer by providing products and services that meet the customer's needs, wants, and preferences. Line managers must understand the hospital's customers and make the critical day-to-day differences in satisfying them. They are the hospital's front-line marketers, and the marketing department's role is to support them in this function. The marketing department should develop the line managers' marketing skills by furnishing them with the appropriate tools: formats, models, examples, and instructions. In addition, the marketing staff should provide such specialized services as marketing research, ad agency management, and development of communications. PMID:10277616

  7. Lines in hypergraphs

    CERN Document Server

    Beaudou, Laurent; Chen, Xiaomin; Chiniforooshan, Ehsan; Chudnovsky, Maria; Chvatal, Vasek; Fraiman, Nicolas; Zwols, Yori

    2011-01-01

    One of the De Bruijn - Erdos theorems deals with finite hypergraphs where every two vertices belong to precisely one hyperedge. It asserts that, except in the perverse case where a single hyperedge equals the whole vertex set, the number of hyperedges is at least the number of vertices and the two numbers are equal if and only if the hypergraph belongs to one of simply described families, near-pencils and finite projective planes. Chen and Chvatal proposed to define the line uv in a 3-uniform hypergraph as the set of vertices that consists of u, v, and all w such that {u,v,w} is a hyperedge. With this definition, the De Bruijn - Erdos theorem is easily seen to be equivalent to the following statement: If no four vertices in a 3-uniform hypergraph carry two or three hyperedges, then, except in the perverse case where one of the lines equals the whole vertex set, the number of lines is at least the number of vertices and the two numbers are equal if and only if the hypergraph belongs to one of two simply descri...

  8. Study on diet-related behavior of pupils in Kaschin-Beck disease endemic areas of Xi'an City%西安市大骨节病区小学生饮食行为研究

    Institute of Scientific and Technical Information of China (English)

    陈伟; 柳明; 时学花; 李平; 靳玲; 董璐; 姚培杰; 杨钢; 谢龙

    2015-01-01

    目的 了解西安市大骨节病区小学生饮食行为情况,为大骨节病病因研究和防治提供科学依据.方法 采用分层随机整群抽样法,用自行设计的问卷对1 076名小学生进行自填式问卷调查.结果 调查对象中当地小麦的食用率为78.81%,其次为外地大米(58.92%)和当地玉米(52.51%).调查对象中坚持食用大米的行为率为51.30%,食用富硒食品的行为率为21.28%;中、重病区食用大米和富硒食品的行为率均低于轻病区(x2=9.351、54.818,均P<0.05).五年级学生坚持食用大米和富硒食品的行为率高于三年级(x2=17.104、6.262,均P<0.05).50.93%的调查对象愿意食用大米,24.67%的调查对象愿意食用富硒食物.四、五年级学生食用大米的意愿高于三年级(x2=19.384,P<0.05),轻病区学生食用富硒食物的意愿高于重中病区(x2=33.331,P<0.05).病区学生最近1周内副食食用情况中蔬菜(73.04%)、新鲜水果(57.43%)和奶及奶制品(44.05%)食用率较高,而家禽及禽产品(18.40%)、猪牛羊肉(15.33%)、鱼类(13.01%)较低.结论 西安市大骨节病病区小学生的饮食行为不合理,存在主食种类单一,以当地小麦、玉米为主,肉类、家禽、鱼类等食用率偏低的情况.相关部门应加强对病区居民大骨节病防治知识的健康教育,促进居民改善不良的饮食行为,提高病区儿童身体素质.%[Objective] To understand the diet-related behavior of pupils in Kaschin-Beck disease (KBD) endemic areas of Xi'an City,provide a scientific basis for etiological study and prevention of KBD.[Methods] Using the stratified random cluster sampling method,the self-administered questionnaire survey was performed among 1076 pupils with a self-designed questionnaire.[Results] The consumption rate of local wheat among respondents was 78.81%,followed by the nonlocal rice (58.92%) and local corn (52.51%).51.30% of respondents insisted on eating rice

  9. Analysis on surveillance results of Kaschin-Beck disease from monitoring site in Henan Province in 2008%2008年河南省大骨节病病情调查结果与分析

    Institute of Scientific and Technical Information of China (English)

    崔才磊; 于红阳; 岳义田

    2009-01-01

    目的 了解河南省大骨节病病情现状,为大骨节病防治提供依据.方法 2008年在河南省大骨节病病区选择地形、地貌、生产及生活方式上具有代表性的陕县张村乡窑店、庙洼村,灵宝市朱阳镇朱阳村进行7~12岁儿童大骨节病临床调查,同时拍右手X线片和采集部分儿童发样和当地粮样.儿童发硒、粮食硒测定采用2,3-二氨基萘荧光法.在洛宁县、灵宝市、渑池县、陕县、卢氏县大骨节病病区乡进行16岁以上成人大骨节病病情调查.结果 共检查7~12岁儿童190人,未检出大骨节病临床病例;拍摄右手X线片190人,X线阳性3人.检出率为1.58%(3/190).共调查16岁及以上的常住人口20 521人,大骨节病临床检出率为6.10%(1251/20 521),其中Ⅰ度为3.97%(814/20 521),Ⅱ度为1.77%(364/20 521),Ⅲ度为0.36%(73/20 521).儿童发硒平均值为(0.319±0.128)mg/kg,粮食硒平均值为(0.031±0.009)mg/kg.结论 河南省儿童大骨节病处于控制水平,成人大骨节病病情较为严重,应加强以治疗现患病人为目的的二级预防.%Objective To understand Kaschin-Beck disease(KBD) status in Henan Province and provide the basis for the further prevention and treatment of KBD. Methods Children aged 7 to 12 in 3 villages(Yaodian, Miaowa and Zhuyang) with the same environment such as topography, physiognomy,production mode and living habits in Shan County and Lingbao City were selected to undertake KBD clinical examination in 2008, X-ray examination of right hand and child hair samples and food samples were collected to determine the content of selenium. Selenium was determined using 2,3-Diaminonaphthalene method. Adults who were 16 years or older in 5 counties(Luoning, Lingbao, Mianchi, Shah and Lushi) were selected and examined for KBD. Results One hundred and ninty children aged 7 to 12 were clinically examined and clinical KBD were found, whereas 3 children were diagnosed as KBD by X-ray examination, the

  10. 不同补硒方式防治大骨节病的系统评价%A systematic review regarding the effects of different kinds of selenium supplementations on Kaschin-Beck disease

    Institute of Scientific and Technical Information of China (English)

    时春虎; 田宏亮; 田金徽; 曾嵘; 杨克虎; 吴泰相; 廖永健

    2013-01-01

    目的 系统评价大骨节病病区不同补硒方式对患病儿童的防治效果.方法 计算机系统检索各中外文数据库及搜索引擎.全面收集有关各种补硒方法防治大骨节病的对照研究,检索时间截至2012年12月.对纳入研究进行质量评价,采用RevMan 5.1软件进行Meta分析.结果 最终纳入14个随机对照试验,12个非随机对照试验,方法学质量均较低.Meta分析结果显示,与安慰剂或空白对照相比,单独补硒治疗能提高大骨节病患儿的X线有效率(RR=3.28,95%CI:2.06~5.22)及发硒水平(SMD=2.05,95%CI:1.00~ 3.11),且能降低新发病例(OR=0.18,95%CI:0.09~ 0.36);单独补硒与单独补充维生素C的X线干骺端好转率的差异无统计学意义(RR=1.01,95%CI:0.84~1.22);补硒联合维生素E治疗的X线有效率及发硒水平高于安慰剂组;与单独补硒相比,补硒联合维生素C在X线疗效和发硒水平上无明显差异;富硒酵母组的有效率(70.83%)高于亚硒酸钠(48.84%)(P<0.05);施硒肥组的X线有效率高于空白组(RR=3.98,95%CI:2.25~7.05),综合干预及晒粮等方法亦有一定效果.结论 单独补硒可提高大骨节病患者X线有效率和发硒水平;维生素联合补硒效果优于单独补硒;富硒酵母的疗效优于单独补硒和对照组.%Objective To systematically assess the efficacy of different programs regarding the selenium supplementation formulae used for prevention and treatment of Kaschin-Beck disease (KBD) in children.Methods PubMed,EMBASE,Cochrane Library,SCI expanded,CNKI (Chinese National Knowledge Infrastructure),VIP (Chinese Science and Technique Journals Database),CBM (The Chinese Biomedical Database),Wanfang Database,CSCD (Chinese Science Citation Database)had been electronically searched.All the searching processes were up-dated to Dec 2012 to identify randomized trials (RCTs) and non-RCTs to compare the selenium supplementation formulae with placebo or with no

  11. Line drawing interpretation

    CERN Document Server

    Cooper, Martin

    2010-01-01

    The computer interpretation of line drawings is a classic problem in AI and has inspired the development of some fundamental AI tools. This novel approach to drawing interpretation combines new constraints with recent advances in soft constraint programming, Based on the author's considerable research experience, this book contains state-of-the-art reviews of work in drawing interpretation and discrete optimisation and is not just restricted to drawings of polyhedral objects, but also covers complex curved objects. The book will become a standard reference in the field with its coverage of man

  12. Worldlines as Wilson Lines

    Energy Technology Data Exchange (ETDEWEB)

    Green, Daniel; /SLAC /Stanford U., Dept. Phys.

    2008-04-29

    Gravitational theories do not admit gauge invariant local operators. We study the limits under which there exists a quasi-local description for a class of non-local gravitational observables where a sum over worldlines plays the role of the Wilson line for gauge theory observables. We study non-local corrections to the local description and circumstances where these corrections become large. We find that these operators are quasi-local in at space and AdS, but fail to be quasi-local in de Sitter space.

  13. Supersymmetric Open Wilson Lines

    CERN Document Server

    Baker, Edward B

    2011-01-01

    In this paper we study Open Wilson Lines (OWL's) in the context of two Supersymmetric Yang Mills theories. First we consider four dimensional N=2 Supersymmetric Yang Mills Theory with hypermultiplets transforming in the fundamental representation of the gauge group, and find supersymmetric OWL's only in the superconformal versions of these theories. We then consider four dimensional N=4 SYM coupled to a three dimensional defect hypermultiplet. Here there is a semi-circular supersymmetric OWL, which is related to the ray by a conformal transformation. We perform a perturbative calculation of the operators in both theories, and discuss using localization to compute them non-perturbatively.

  14. Diccionarios on line

    OpenAIRE

    de Moya Anegón, Félix; Muñoz, J. M.; Hipola, Pedro

    1986-01-01

    Son conocidas las prestaciones de los diccionarios "on line " en tanto que herramientas para el análisis a automatico de documentación textual, l a elaboración de productos de indización, para la traducción asistida por ordenador (TAO) y para la preparación de léxicos especializados. Como útiles del análisis automático, los diccionarios pueden constituir, en primer lugar, instrumentos para automatizar los procesos de reducción de las diferentes formas lingüísticas flexion...

  15. A retrospective analysis of Kashin-Beck disease f rom 1982 to 2011 in Qinghai Province%青海省大骨节病30年防治状况分析

    Institute of Scientific and Technical Information of China (English)

    张强; 王虎; 陈黎林; 丁生荣; 李强; 赵志军; 白生录; 马静

    2014-01-01

    Objective To summarize the date of surveillance ,investigation ,prevention and research on Kash-in-Beck disease (KBD) among children from the year 1982 through 2011 in KBD regions of Qinghai Province ,in or-der to analyze the growth and decline of KBD occurrence ,development and influencing factors .Methods Survey was conducted among children with reference to the standard diagnosis of KBD .The internal and external environ-ment of trace elements including selenium ,iodine and fluorine were detected .Food T-2 toxins were determined ac-cording to the national standard method .Results The KBD prevalence rate and the X-ray detectable rate were 2.50~17 .39% ,0~13 .73% ;1 .21~8 .24% ,6 .70~23 .28% ;and 4 .26~26 .14% ,0 .80~3 .46% in Guide County , Xinghai County ,and Banma County ,respectively .The hair selenium of children rose from (57 .00 ± 48 .12)μg/kg in 1982 to (182 .09 ± 78 .46)μg/kg in 2010 in Guide County .The hair selenium of children rose from (70 .34 ± 60 .97)μg/kg in 1989 to (211 .80 ± 86 .84)μg/kg in 2010 in Xinghai County according to single factor analysis of variance (F test) ,(P<0 .05) .The hair selenium level of children in Banma County was stable and higher than that in Guide County and Xinghai County according to F test ,(P=0 .05) .Water ,soil ,household produced food selenium level was low and stable in Guide County and Xinghai County .Water ,soil ,grain selenium level in Banma County was higher than that in Guide and Xinghai ,according to F test ,( P<0 .05 ) .Salt iodine and urinary iodine levels were within the normal range in Guide County and Xinghai County ,but water iodine was lower than the national stand-ard .In Xinghai County ,the T-2 toxin in household produced food was exceedingly high .In Guide County ,the fluo-rine content of external environment was below the non -endemic area ,and the content of fluorine in children was higher than that in children in non -endemic area .Conclusions The prevalence rate declined with

  16. Beck Robert et Madoeuf Anna, Divertissements et loisirs dans les sociétés urbaines à l’époque moderne et contemporaine, Tours, Presses universitaires François Rabelais et Maison des Sciences de l’Homme, 2005, 410 p.

    Directory of Open Access Journals (Sweden)

    Francine Fourmaux

    2007-11-01

    Full Text Available Comment prend-on du bon temps dans les sociétés urbaines, à l’époque moderne et contemporaine ? Telle est la question à laquelle plus d’une vingtaine de chercheurs ont consacré leurs analyses, rassemblées dans cet ouvrage par Robert Beck et Anna Madoeuf à la suite du colloque international et pluridisciplinaire « Divertissements et loisirs dans les sociétés urbaines, une approche comparative monde occidental – monde musulman » qu’ils ont organisé à Tours en 2003. L’historien Alain Corbin l’a ...

  17. CLO : The cell line ontology

    NARCIS (Netherlands)

    Sarntivijai, Sirarat; Lin, Yu; Xiang, Zuoshuang; Meehan, Terrence F.; Diehl, Alexander D.; Vempati, Uma D.; Schuerer, Stephan C.; Pang, Chao; Malone, James; Parkinson, Helen; Liu, Yue; Takatsuki, Terue; Saijo, Kaoru; Masuya, Hiroshi; Nakamura, Yukio; Brush, Matthew H.; Haendel, Melissa A.; Zheng, Jie; Stoeckert, Christian J.; Peters, Bjoern; Mungall, Christopher J.; Carey, Thomas E.; States, David J.; Athey, Brian D.; He, Yongqun

    2014-01-01

    Background: Cell lines have been widely used in biomedical research. The community-based Cell Line Ontology (CLO) is a member of the OBO Foundry library that covers the domain of cell lines. Since its publication two years ago, significant updates have been made, including new groups joining the CLO

  18. PHIL photoinjector test line

    CERN Document Server

    Alves, M; Auguste, D; Babigeon, J L; Blot, F; Brossard, J; Bruni, C; Cavalier, S; Cayla, J N; Chaumat, V; Collin, J; Dehamme, M; Demarest, M; Dugal, J P; Elkhaldi, M; Falleau, I; Gonnin, A; Jore, M; Jules, E; Leluan, B; Lepercq, P; Letellier, F; Mandag, E; Marrucho, J C; Mercier, B; Mistretta, E; Prevost, C; Roux, R; Soskov, V; Toutain, A; Variola, A; Vitez, O; Monard, H

    2012-01-01

    LAL is now equiped with its own platform for photoinjectors tests and Research and Developement, named PHIL (PHotoInjectors at LAL). This facility has two main purposes: push the limits of the photoinjectors performances working on both the design and the associated technology and provide a low energy (MeV) short pulses (ps) electron beam for the interested users. Another very important goal of this machine will be to provide an opportunity to form accelerator physics students, working in a high technology environment. To achieve this goal a test line was realised equipped with an RF source, magnets and beam diagnostics. In this article we will desrcibe the PHIL beamline and its characteristics together with the description of the first two photoinjector realised in LAL and tested: the ALPHAX and the PHIN RF Guns.

  19. PHIL photoinjector test line

    International Nuclear Information System (INIS)

    LAL is now equiped with its own platform for photoinjectors tests and Research and Developement, named PHIL (PHotoInjectors at LAL). This facility has two main purposes: push the limits of the photoinjectors performances working on both the design and the associated technology and provide a low energy (MeV) short pulses (ps) electron beam for the interested users. Another very important goal of this machine will be to provide an opportunity to form accelerator physics students, working in a high technology environment. To achieve this goal a test line was realised equipped with an RF source, magnets and beam diagnostics. In this article we will describe the PHIL beamline and its characteristics together with the description of the first two photoinjector realised in LAL and tested: the ALPHAX and the PHIN RF Guns.

  20. Drawing the Line

    DEFF Research Database (Denmark)

    Holm, Isak Winkel

    2016-01-01

    of judgement that distinguishes between the inside and outside of a political community, between citizens and zombies. Second, the chapter focuses on the rhetorics applied to draw the line between rights-bearers and the rightless. ‘Prophetic’ speech, echoing the language of the Old Testament prophets, is vital...... of a political community. This chapter contends that this shift of focus--from a 'what' question to a 'who' question of justice (Nancy Fraser)--is a recurrent feature in modern disaster fiction, not just in Kleist's short story but also, for instance, in zombie movies. First, the chapter explores the act...... to understanding the question of justice in much disaster fiction. Third and last, the chapter discusses the relationship between the reader's aesthetic experience of Kleist's story, and the political act of judgement represented in the story: in other words, the relationship between the ‘how’ question of literary...

  1. Illumination by Tangent Lines

    OpenAIRE

    Horwitz, Alan

    2011-01-01

    Let f be a differentiable function on the real line, and let P\\inG_{f}^{C}= all points not on the graph of f. We say that the illumination index of P, denoted by I_{f}(P), is k if there are k distinct tangents to the graph of f which pass through P. In section 2 we prove results about the illumination index of f with f" (x)\\geq 0 on \\Re. In particular, suppose that y=L_1(x) and y=L_2(x) are distinct oblique asymptotes of f and let P=(s,t)\\in G_{f}^{C}. If max(L_1(s),L_2(s))

  2. Understanding Slag Freeze Linings

    Science.gov (United States)

    Fallah-Mehrjardi, Ata; Hayes, Peter C.; Jak, Evgueni

    2014-09-01

    Slag freeze linings, the formation of protective deposit layers on the inner walls of furnaces and reactors, are increasingly used in industrial pyrometallurgical processes to ensure that furnace integrity is maintained in these aggressive, high-temperature environments. Most previous studies of freeze-linings have analyzed the formation of slag deposits based solely on heat transfer considerations. These thermal models have assumed that the interface between the stationary frozen layer and the agitated molten bath at steady-state deposit thickness consists of the primary phase, which stays in contact with the bulk liquid at the liquidus temperature. Recent experimental studies, however, have clearly demonstrated that the temperature of the deposit/liquid bath interface can be lower than the liquidus temperature of the bulk liquid. A conceptual framework has been proposed to explain the observations and the factors influencing the microstructure and the temperature of the interface at steady-state conditions. The observations are consistent with a dynamic steady state that is a balance between (I) the rate of nucleation and growth of solids on detached crystals in a subliquidus layer as this fluid material moves toward the stagnant deposit interface and (II) the dissolution of these detached crystals as they are transported away from the interface by turbulent eddies. It is argued that the assumption that the interface temperature is the liquidus of the bulk material represents only a limiting condition, and that the interface temperature can be between T liquidus and T solidus depending on the process conditions and bath chemistry. These findings have implications for the modeling approach and boundary conditions required to accurately describe these systems. They also indicate the opportunity to integrate considerations of heat and mass flows with the selection of melt chemistries in the design of future high temperature industrial reactors.

  3. Railroad Lines, Line feature class representing individual Railroad rail lines, Published in unknown, Johnson County AIMS.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Railroad Lines dataset, was produced all or in part from Orthoimagery information as of unknown. It is described as 'Line feature class representing individual...

  4. Constructing the Virtual Production Line

    Institute of Scientific and Technical Information of China (English)

    孙连胜; 宁汝新

    2003-01-01

    In order to study the constructing technology of virtual production line, the structure model of virtual production line was presented, and the object-oriented technique was used to establish its basic classes and relevant models, including solid model, behavior model and object-oriented Petri net based control model, and based on this, the constructing of virtual production line was realized. The application proved that the virtual production line had many good characteristics, such as visualization, interaction, multi-layer and reusability, and it's an efficient tool of analyzing and modeling for layout planning and rapidly reconfiguring of production line.

  5. Radiosensitivity of mesothelioma cell lines

    International Nuclear Information System (INIS)

    The present study was carried out in order to examine the radiosensitivity of malignant pleural mesothelioma cell lines. Cell kinetics, radiation-induced delay of the cell cycle and DNA ploidy of the cell lines were also determined. For comparison an HeLa and a human foetal fibroblast cell line were simultaneously explored. Six previously cytogenetically and histologically characterized mesothelioma tumor cell lines were applied. A rapid tiazolyl blue microtiter (MTT) assay was used to analyze radiosensitivity and cell kinetics and DNA ploidy of the cultured cells were determined by flow cytometry. The survival fraction after a dose of 2 Gy (SF2), parameters α and β of the linear quadratic model (LQ-model) and mean inactivation dose (DMID) were also estimated. The DNA index of four cell lines equaled 1.0 and two cell lines equaled 1.5 and 1.6. Different mesothelioma cell lines showed a great variation in radiosensitivity. Mean survival fraction after a radiation dose of 2 Gy (SF2) was 0.60 and ranged from 0.36 to 0.81 and mean α value was 0.26 (range 0.48-0.083). The SF2 of the most sensitive diploid mesothelioma cell line was 0.36: Less than that of the foetal fibroblast cell line (0.49). The survival fractions (0.81 and 0.74) of the two most resistant cell lines, which also were aneuploid, were equal to that of the HeLa cell line (0.78). The α/β ratios of the most sensitive cell lines were almost an order of magnitude greater than those of the two most resistant cell lines. Radiation-induced delay of the most resistant aneuploid cell line was similar to that of HeLa cells but in the most sensitive (diploid cells) there was practically no entry into the G1 phase following the 2 Gy radiation dose during 36 h. (orig.)

  6. Optimization of line configuration and balancing for flexible machining lines

    Science.gov (United States)

    Liu, Xuemei; Li, Aiping; Chen, Zurui

    2016-05-01

    Line configuration and balancing is to select the type of line and allot a given set of operations as well as machines to a sequence of workstations to realize high-efficiency production. Most of the current researches for machining line configuration and balancing problems are related to dedicated transfer lines with dedicated machine workstations. With growing trends towards great product variety and fluctuations in market demand, dedicated transfer lines are being replaced with flexible machining line composed of identical CNC machines. This paper deals with the line configuration and balancing problem for flexible machining lines. The objective is to assign operations to workstations and find the sequence of execution, specify the number of machines in each workstation while minimizing the line cycle time and total number of machines. This problem is subject to precedence, clustering, accessibility and capacity constraints among the features, operations, setups and workstations. The mathematical model and heuristic algorithm based on feature group strategy and polychromatic sets theory are presented to find an optimal solution. The feature group strategy and polychromatic sets theory are used to establish constraint model. A heuristic operations sequencing and assignment algorithm is given. An industrial case study is carried out, and multiple optimal solutions in different line configurations are obtained. The case studying results show that the solutions with shorter cycle time and higher line balancing rate demonstrate the feasibility and effectiveness of the proposed algorithm. This research proposes a heuristic line configuration and balancing algorithm based on feature group strategy and polychromatic sets theory which is able to provide better solutions while achieving an improvement in computing time.

  7. EC Transmission Line Materials

    International Nuclear Information System (INIS)

    The purpose of this document is to identify materials acceptable for use in the US ITER Project Office (USIPO)-supplied components for the ITER Electron cyclotron Heating and Current Drive (ECH and CD) transmission lines (TL), PBS-52. The source of material property information for design analysis shall be either the applicable structural code or the ITER Material Properties Handbook. In the case of conflict, the ITER Material Properties Handbook shall take precedence. Materials selection, and use, shall follow the guidelines established in the Materials Assessment Report (MAR). Materials exposed to vacuum shall conform to the ITER Vacuum Handbook. (Ref. 2) Commercial materials shall conform to the applicable standard (e.g., ASTM, JIS, DIN) for the definition of their grade, physical, chemical and electrical properties and related testing. All materials for which a suitable certification from the supplier is not available shall be tested to determine the relevant properties, as part of the procurement. A complete traceability of all the materials including welding materials shall be provided. Halogenated materials (example: insulating materials) shall be forbidden in areas served by the detritiation systems. Exceptions must be approved by the Tritium System and Safety Section Responsible Officers.

  8. EC Transmission Line Materials

    Energy Technology Data Exchange (ETDEWEB)

    Bigelow, Tim S [ORNL

    2012-05-01

    The purpose of this document is to identify materials acceptable for use in the US ITER Project Office (USIPO)-supplied components for the ITER Electron cyclotron Heating and Current Drive (ECH&CD) transmission lines (TL), PBS-52. The source of material property information for design analysis shall be either the applicable structural code or the ITER Material Properties Handbook. In the case of conflict, the ITER Material Properties Handbook shall take precedence. Materials selection, and use, shall follow the guidelines established in the Materials Assessment Report (MAR). Materials exposed to vacuum shall conform to the ITER Vacuum Handbook. [Ref. 2] Commercial materials shall conform to the applicable standard (e.g., ASTM, JIS, DIN) for the definition of their grade, physical, chemical and electrical properties and related testing. All materials for which a suitable certification from the supplier is not available shall be tested to determine the relevant properties, as part of the procurement. A complete traceability of all the materials including welding materials shall be provided. Halogenated materials (example: insulating materials) shall be forbidden in areas served by the detritiation systems. Exceptions must be approved by the Tritium System and Safety Section Responsible Officers.

  9. Signal Transmission on Power Lines

    DEFF Research Database (Denmark)

    Dalby, Arne Brejning

    1997-01-01

    In the analysis of power-line networks over a large frequency span, the time-domain method used in programs like EMTP (Electromagnetic Time domain Program) can not be used. A more rigorous analysis method must be employed. The correct analysis method (assuming TEM-mode propagation) for multiple...... coupled transmission line circuits like power line circuits, is based on finding the eigenvalues and eigenvectors for the matrix ZY, where Z and Y are the impedance- and admittance matrices for the coupled lines in W/m and S/m. In this paper a flow-graph representation of the relations beween voltage......- and current-vectors is presented for a general coupled line circuit. This flow-graph can be used to find any transfer function on a multiple coupled lossy transmission line circuit. In some cases, however, it is difficult to find the eigenvalues correctly. A correct analysis can thus not be made...

  10. A Line Demarcating Greenwich Village

    OpenAIRE

    Chien, Kevin Yang-Cheng

    1997-01-01

    The trail of the artifact is an anonymous line on a tourist map of Manhattan. It delimits the boundary, separates the inner and outer, and occupies space. This occupied space juxtaposing the edge of Greenwich Village is an invisible and a undetermined line in the city. Architecture is the result of thinking of object as act, as transformation, and as invention. The project searches, explores, and makes this line present.

  11. Waiting Lines and Customer Satisfaction

    OpenAIRE

    M.S. Sridhar

    2001-01-01

    The paper points out certain quantitative methods largely ignored by library service providers, highlights the importance of customer participation in service delivery process, examines the concepts service quality and customer satisfaction, emphasizes the need for appropriately handling waiting lines in service organisations, presents briefly the theory of waiting lines (queuing theory), psychology of customers in waiting lines with illustrations from library situations, discusses ways and m...

  12. On line portal imaging

    International Nuclear Information System (INIS)

    Purpose/Objective: The purpose of this presentation is to examine the various imaging devices that have been developed for portal imaging; describe some of the image registration methods that have been developed to determine geometric errors quantitatively; discuss some of the ways that portal imaging has been incorporated into routine clinical practice; describe quality assurance procedures for these devices, and discuss the use of portal imaging devices for dosimetry applications. Discussion: Verification of patient positioning has always been an important aspect of external beam radiation therapy. Over the past decade many portal imaging devices have been developed by individual investigators and most accelerator manufacturers now offer 'on-line' portal imaging systems. The commercial devices can be classified into three categories: T.V. camera-based systems, liquid ionisation chamber systems, and amorphous silicon systems. Many factors influence the quality of images generated by these portal imaging systems. These include factors which are unavoidable (e.g., low subject contrast), factors which depend upon the individual imaging device forming the image (e.g., dose utilisation, spatial resolution) as well as factors which depend upon the characteristics of the linear accelerator irradiating the imaging system (x-ray source size, image magnification). The characteristics of individual imaging systems, such as spatial resolution, temporal response, and quantum utilisation will be discussed. One of the major advantages of on-line portal imaging is that many quantitative techniques have been developed to detect errors in patient positioning. The general approach is to register anatomic structures on a portal image with the same structures on a digitized simulator film. Once the anatomic structures have been registered, any discrepancies in the position of the patient can be identified. However, the task is not nearly as straight-forward as it sounds. One problem

  13. ALFA: Automated Line Fitting Algorithm

    Science.gov (United States)

    Wesson, R.

    2015-12-01

    ALFA fits emission line spectra of arbitrary wavelength coverage and resolution, fully automatically. It uses a catalog of lines which may be present to construct synthetic spectra, the parameters of which are then optimized by means of a genetic algorithm. Uncertainties are estimated using the noise structure of the residuals. An emission line spectrum containing several hundred lines can be fitted in a few seconds using a single processor of a typical contemporary desktop or laptop PC. Data cubes in FITS format can be analysed using multiple processors, and an analysis of tens of thousands of deep spectra obtained with instruments such as MUSE will take a few hours.

  14. 76 FR 51367 - China Shipping Container Lines Co., Ltd.; COSCO Container Lines Company Limited; Evergreen Line A...

    Science.gov (United States)

    2011-08-18

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION China Shipping Container Lines Co., Ltd.; COSCO Container Lines Company Limited; Evergreen Line A Joint... Container Lines Co., Ltd.; COSCO Container Lines Company Limited; Evergreen Line A Joint Service...

  15. On line portal imaging

    International Nuclear Information System (INIS)

    Purpose/Objective: The purpose of this presentation is to review the physics of imaging with high energy x-ray beams; examine the various imaging devices that have been developed for portal imaging; describe some of the image registration methods that have been developed to determine errors in patient positioning quantitatively; and discuss some of the ways that portal imaging has been incorporated into routine clinical practice. Verification of patient positioning has always been an important aspect of external beam radiation therapy. Checks of patient positioning have generally been done with film, however, film suffers from a number of drawbacks, such as poor image display and delays due to film development. Over the past decade many portal imaging devices have been developed by individual investigators and most accelerator manufacturers now offer 'on-line' portal imaging systems, which are intended to overcome the limitations of portal films. The commercial devices can be classified into three categories: T.V. camera-based systems, liquid ionisation chamber systems, and amorphous silicon systems. Many factors influence the quality of images generated by these portal imaging systems. These include factors which are unavoidable (e.g., low subject contrast), factors which depend upon the individual imaging device forming the image (e.g., dose utilisation, spatial resolution) as well as factors which depend upon the characteristics of the linear accelerator irradiating the imaging system (x-ray source size, image magnification). The fundamental factors which limit image quality and the characteristics of individual imaging systems, such as spatial resolution, temporal response, and quantum utilisation will be discussed. One of the major advantages of on-line portal imaging is that many quantitative techniques have been developed to detect errors in patient positioning. The general approach is to register anatomic structures on a portal image with the same

  16. What was the Assembly Line?

    DEFF Research Database (Denmark)

    Nye, David

    2010-01-01

    The assembly line is still evolving a century after its invention, and it was not a distinct historical stage, nor was it part of an inevitable sequence that followed "Taylorism."......The assembly line is still evolving a century after its invention, and it was not a distinct historical stage, nor was it part of an inevitable sequence that followed "Taylorism."...

  17. Magnetic bearing optical delay line

    NARCIS (Netherlands)

    Dool, T.C. van den; Kamphues, F.G.; Fouss, B.; Henrioulle, K.; Hogenhuis, H.

    2004-01-01

    TNO TPD, in close cooperation with Micromega-Dynamics and Dutch Space, has developed an advanced Optical Delay Line (ODL) for use in PRIMA, GENIE and other ground based interferometers. The delay line design is modular and flexible, which makes scaling for other applications a relatively easy task.

  18. Mechanical Behaviour of Lined Pipe

    NARCIS (Netherlands)

    Hilberink, A.

    2011-01-01

    Installing lined pipe by means of the reeling installation method seems to be an attractive combination, because it provides the opportunity of eliminating the demanding welds from the critical time offshore and instead preparing them onshore. However, reeling of lined pipe is not yet proven technol

  19. Forecasting for dynamic line rating

    DEFF Research Database (Denmark)

    Michiorri, Andrea; Nguyen, Huu-Minh; Alessandrini, Stefano;

    2015-01-01

    Rating (DLR) is a technology used to dynamically increase the ampacity of electric overhead transmission lines. It is based on the observation that the ampacity of an overhead line is determined by its ability to dissipate into the environment the heat produced by Joule effect. This in turn is dependent...

  20. Wiswesser Line Notation: An Introduction.

    Science.gov (United States)

    Vollmer, John J.

    1983-01-01

    Wiswesser Line Notation, a system for representing structural formulas by a single line of common symbols (numerals, capital letters, and three punctuation marks), is gaining acceptance as an effective indexing tool. The resulting notations, denoting specific structural fragments of a molecule, can be retrieved by humans or computer. (Author/JN)

  1. US line-ups outperform UK line-ups

    Science.gov (United States)

    Seale-Carlisle, Travis M.

    2016-01-01

    In the USA and the UK, many thousands of police suspects are identified by eyewitnesses every year. Unfortunately, many of those suspects are innocent, which becomes evident when they are exonerated by DNA testing, often after having been imprisoned for years. It is, therefore, imperative to use identification procedures that best enable eyewitnesses to discriminate innocent from guilty suspects. Although police investigators in both countries often administer line-up procedures, the details of how line-ups are presented are quite different and an important direct comparison has yet to be conducted. We investigated whether these two line-up procedures differ in terms of (i) discriminability (using receiver operating characteristic analysis) and (ii) reliability (using confidence–accuracy characteristic analysis). A total of 2249 participants watched a video of a crime and were later tested using either a six-person simultaneous photo line-up procedure (USA) or a nine-person sequential video line-up procedure (UK). US line-up procedure yielded significantly higher discriminability and significantly higher reliability. The results do not pinpoint the reason for the observed difference between the two procedures, but they do suggest that there is much room for improvement with the UK line-up.

  2. Line ratios for O VII

    International Nuclear Information System (INIS)

    New theoretical rates for electron excitation of the transitions 11S-23P and 11S-23P in O VII are used to calculate the line ratios R0 (forbidden line to intercombination line) and G0 (forbidden plus intercombination lines to resonance line). Our theoretical values of R0 are slightly larger than earlier calculations but our values of G0 are significantly lower than the earlier calculations. With our results the value of G0 1.0, from the solar observations of McKenzie and Landecker, would predict an electron temperature of 2.0 x 106 K, which is in good agreement with the temperature of 1.8 x 106 K predicted by recombination-ionization equilibrium calculations. (author)

  3. Teaching Braille Line Tracking Using Stimulus Fading

    Science.gov (United States)

    Scheithauer, Mindy C.; Tiger, Jeffrey H.

    2014-01-01

    Line tracking is a prerequisite skill for braille literacy that involves moving one's finger horizontally across a line of braille text and identifying when a line ends so the reader may reset his or her finger on the subsequent line. Current procedures for teaching line tracking are incomplete, because they focus on tracking lines with only…

  4. 2007-2011年四川省阿坝州综合措施预防儿童大骨节病效果分析%Effects of comprehensive measures on prevention of children's Kashin-Beck disease in Aba state Sichuan province from 2007 to 2011

    Institute of Scientific and Technical Information of China (English)

    黄慧; 邓佳云; 李富忠; 李津蜀; 秦胜超; 陈开华; 王丽华

    2012-01-01

    Objective To observe the effects of comprehensive measures of changing grain,selenium supplementation,off-site education and resettlement on prevention of children's Kashin-Beck disease in Aba state.Methods Fifty eight villages in Aba Kashin-Beck disease areas were chosen as intervention points in Aba state Sichuan province from 2007 to 2011.Based on the implementation of prevention and control measures,the villages were divided into off-site education + changing grain + selenium supplementation group and resettlement + off-site education + changing grain + selenium supplementation group,Geletuo town of Seda county,Ganzi state was selected as a control point,and right-hand anteroposterior X-ray examination(including the wrist) was carried out on children aged 6-13 from 2007 to 2011 annually.Clinical and X-ray diagnosis of Kashin-Beck disease was made in accordance with "the Diagnostic Criteria of Kaschin-Beck Disease"(GB 16003-1995).The effects of prevention and control measures were evaluated by comparing the child X-ray detection rate before and after the implementation of the measures.Results The average X-ray positive detectable rate of children in the intervention points was 2.07%(66/3181),2.72% (69/2540),1.16% (35/3017),0.56% (19/3397) and 0.56% (24/4273),respectively from 2007 to 2011,with a downward trend (x2trend =66.74,P < 0.01).There was a downward trend in the average X-ray positive detectable rate of children in off-site education + changing grain + selenium supplementation group [1.60%(29/1809),2.63% (39/1484),1.29% (25/1941),0.64% (15/2332),0.42% (10/2379)] and resettlement + off-site education + changing grain + selenium supplementation group [2.70% (37/1372),2.84% (30/1056),0.93%(10/1076),0.38% (4/1065),0.74%(14/1894)] (x2trend=30.97,35.19,all P < 0.01).The average X-ray positive detectable rate of children in the intervention group was 0 from 2007 to 2010,and was 1.61% (1/62) in 2011.The difference of X

  5. In-line hydraulic dashpot

    Science.gov (United States)

    Moody, Paul E.

    1992-10-01

    An in-line hydraulic dashpot is disclosed that effectively decelerates the piston of a power cylinder by controllably choking off the oil which is providing pressure to the piston. The in-line hydraulic dashpot of the invention includes a valve spool member movable between an open and closed position along a fluid flow path that supplies oil to the power cylinder. An actuator rod is cooperative with the valve spool member and the piston shaft of the power cylinder to move tile valve spool member between its open and closed positions. The in-line hydraulic dashpot eliminates the clashing of mechanical parts and therewith eliminates the noise that would otherwise be generated thereby. The in-line hydraulic dashpot of the present invention makes possible the adaptation of a fixed stroke power cylinder to applications that call for a variable stroke length.

  6. Digital Line Graph - Large Scale

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Digital line graph (DLG) data are digital representations of cartographic information. DLGs of map features are converted to digital form from maps and related...

  7. Base Flood Elevation (BFE) Lines

    Data.gov (United States)

    Department of Homeland Security — The Base Flood Elevation (BFE) table is required for any digital data where BFE lines will be shown on the corresponding Flood Insurance Rate Map (FIRM). Normally...

  8. Transmission line model for nanoelectronics

    OpenAIRE

    Nelin E. A.

    2009-01-01

    Analytical expressions for resonant parametres and characteristics of typical barrier nanoelectronic structures have been received on the basis of the transmission line model. Characteristics illustrating the efficiency of such approach are presented in the article.

  9. Transmission line model for nanoelectronics

    Directory of Open Access Journals (Sweden)

    Nelin E. A.

    2009-08-01

    Full Text Available Analytical expressions for resonant parametres and characteristics of typical barrier nanoelectronic structures have been received on the basis of the transmission line model. Characteristics illustrating the efficiency of such approach are presented in the article.

  10. Composite Materials in Overhead Lines

    DEFF Research Database (Denmark)

    Sørensen, Thomas Kjærsgaard; Holbøll, Joachim

    2009-01-01

    The use of composite materials, e.g. fibreglass materials, in overhead transmission line systems is nothing new. Composite based insulators have been applied to transmission lines for over 30 years, mainly as suspension and post insulators and often as an option for special applications. Also...... towers and recently conductors based on composite materials are available at transmission levels. In this paper it is investigated which composite based solutions are available in connection with complete overhead line systems including insulators, towers and conductors. The components are reviewed...... with respect to solved and persisting known failures/problems of both mechanical and electrical nature. Major challenges related to extensive use of composite materials in an overhead line system are identified, as are possible benefits - both when using standard as well as customised composite components, e...

  11. Transmission Lines Emulating Moving Media

    CERN Document Server

    Vehmas, Joni; Tretyakov, Sergei

    2014-01-01

    In this paper, we show how the electromagnetic phenomena in moving magnetodielectric media can be emulated using artificial composite structures at rest. In particular, we introduce nonreciprocal periodically loaded transmission lines which support waves obeying the same rules as plane electromagnetic waves in moving media. Because the actual physical structure is at rest, in these transmission lines there are no fundamental limitations on the velocity values, which may take values larger than the speed of light or even complex values (considering complex amplitudes in the time-harmonic regime). An example circuit of a unit cell of a "moving" transmission line is presented and analyzed both numerically and experimentally. The special case of composite right/left handed host line is also studied numerically. Besides the fundamental interest, the study is relevant for potential applications in realizing engineered materials for various transformations of electromagnetic fields.

  12. Control Point Generated PLS - lines

    Data.gov (United States)

    Minnesota Department of Natural Resources — The Control Point Generated PLS layer contains line and polygon features to the 1/4 of 1/4 PLS section (approximately 40 acres) and government lot level. The layer...

  13. Shielding of moving line charges

    Energy Technology Data Exchange (ETDEWEB)

    Wang, Youmei; He, Bingyu [Department of Physics, School of Science, Hangzhou Dianzi University, Hangzhou 310018 (China); Yu, Wei [Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China); Yu, M.Y., E-mail: myyu@zju.edu.cn [Institute for Fusion Theory and Simulation and Department of Physics, Zhejiang University, Hangzhou 310027 (China); Institute for Theoretical Physics I, Ruhr University, D-44780 Bochum (Germany)

    2015-07-03

    A charged object moving in plasma can excite plasma waves that inevitably modify its Debye shielding characteristics. When the excited waves propagate sufficiently fast, the shielding can even break down. Here the properties of finite amplitude plasma waves excited by a moving line charge are investigated. It is found that when the speed of the latter is close to but less than the thermal speed of the background plasma electrons, only a localized disturbance in the form of a soliton that moves together with the line charge is excited. That is, the line charge is well shielded even though it is moving at a high speed and has generated a large local electrostatic field. However, for a pair of line charges moving together, such complete shielding behavior could not be found.

  14. Louisiana ESI: ROADS (Road Lines)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains the state maintained primary and secondary road network of Louisiana. Vector lines in the data set represent Interstates, U.S. Highways, and...

  15. COSCO Container Lines Forging Ahead

    Institute of Scientific and Technical Information of China (English)

    LiHaiyang

    2001-01-01

    COSCO Container Lines (COSCON) now has 107 container ships with a total capacity of over 210000 TEUs, six 5250TEU Super Panama container ships being the most advanced ships in the world. Operating in over 20 global shipping lines with ships calling over 100 ports in the world,COSCON is now one of the largest international shipping companies. With over 40 subsidiaries operating on shore, COSCON has become a comprehensive enterprise with international shipping as its main business.

  16. Horizontes del periodismo on line

    Directory of Open Access Journals (Sweden)

    Lizy Navarro Zamora

    2004-12-01

    Full Text Available This paper analyses the development of on line newspapers, their future, the promises which were fulfilled and those which were not. I study the finacial aspect of it, also the problem of concerningreception and the devices for it are considered. There are some considerations about the cyberjournalist, and about the contents, finally there are some advantages and recommendations concerning of on-line papers.

  17. Radio and line transmission 2

    CERN Document Server

    Roddy, Dermot

    2013-01-01

    Radio and Line Transmission, Volume 2 gives a detailed treatment of the subject as well as an introduction to additional advanced subject matter. Organized into 14 chapters, this book begins by explaining the radio wave propagation, signal frequencies, and bandwidth. Subsequent chapters describe the transmission lines and cables; the aerials; tuned and coupled circuits; bipolar transistor amplifiers; field-effect transistors and circuits; thermionic valve amplifiers; LC oscillators; the diode detectors and modulators; and the superheterodyne receiver. Other chapters explore noise and interfere

  18. Petrol Pipe Line Telemonitoring Design

    Directory of Open Access Journals (Sweden)

    Abdelrasoul Jabar Alzubaidi

    2015-03-01

    Full Text Available Petrol pipe lines are subjected to different types of malfunction. The malfunction can happen due to technical faults or it may be due to a gangsters attack on the petrol pipes in order to hinder the petrol pumping operations.. The damage of the petrol pipes causes a loss of a large amount of petrol from the pipe lines. Petrol pipe damage also causes fires and pollution to the environments . Such operations causes a lot of loss in economy to the country concerned where the sabotage took place. This paper sheds the light on this challenging issue to steady and propose an intelligent electronic circuit design solutions to this problem. An electronic circuit design based on using a Field Programmable Gate Array (FPGA is proposed as a processor to control the petrol pipe lines. A real time monitoring cameras are installed to fulfill this task .The system design is programmable (i.e intelligent and hence the electronic actions established in the design can be modified easily..A personnel computer is used to capture the images from the cameras installed on the petrol pipe line. If any damage or attack is noticed a commands can be initiated to the electronic and electrical devices to stop the pumping operation and to close the petrol pipe line immediately. Many electrically controlled pipe closing valves are to be installed along the pipe line. These electronic closing valves are remotely controlled by the embedded system based on the (FPGA.

  19. Gamma-ray line transients

    International Nuclear Information System (INIS)

    Early interpretations of the variability of the narrow 0.511 MeV annihilation line from the Galactic center (GC) were confused by the unrecognized presence of a very extended component (mid 70s-mid 80s). Transient behavior was suggested by comparisons of measurements made by instruments with comparable fields of view, and by detection of other lines which could be interpreted as broadened and Doppler-shifted versions of the line. A new generation of instruments (late 80s-early 90s) provided more compelling evidence, by improved imaging capability (identifying a known transient high-energy candidate source, 1E 1740.7-2942), and by improved sensitivity. Additional broadened, shifted, and Compton-scattered derivatives of the annihilation line were detected from this and other sources. At the same time, theoretical developments suggested exciting new physics which might arise in the accretion regimes around black holes, of which these features would be important diagnostics. In the GRO era the existence of such transient lines has been brought into question by the failure of long-term monitoring to detect them. A seemingly critical observation of the GC by three different instruments simultaneously, in which transient emission was detected only by one, provides the strongest evidence that the earlier results were in error. Recent developments in accretion disk theory have weakened the theoretical case for the lines. I draw conclusions concerning the nature of scientific inquiry and public outreach efforts in science

  20. Line-by-line spectroscopic simulations on graphics processing units

    Science.gov (United States)

    Collange, Sylvain; Daumas, Marc; Defour, David

    2008-01-01

    We report here on software that performs line-by-line spectroscopic simulations on gases. Elaborate models (such as narrow band and correlated-K) are accurate and efficient for bands where various components are not simultaneously and significantly active. Line-by-line is probably the most accurate model in the infrared for blends of gases that contain high proportions of H 2O and CO 2 as this was the case for our prototype simulation. Our implementation on graphics processing units sustains a speedup close to 330 on computation-intensive tasks and 12 on memory intensive tasks compared to implementations on one core of high-end processors. This speedup is due to data parallelism, efficient memory access for specific patterns and some dedicated hardware operators only available in graphics processing units. It is obtained leaving most of processor resources available and it would scale linearly with the number of graphics processing units in parallel machines. Line-by-line simulation coupled with simulation of fluid dynamics was long believed to be economically intractable but our work shows that it could be done with some affordable additional resources compared to what is necessary to perform simulations on fluid dynamics alone. Program summaryProgram title: GPU4RE Catalogue identifier: ADZY_v1_0 Program summary URL:http://cpc.cs.qub.ac.uk/summaries/ADZY_v1_0.html Program obtainable from: CPC Program Library, Queen's University, Belfast, N. Ireland Licensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.html No. of lines in distributed program, including test data, etc.: 62 776 No. of bytes in distributed program, including test data, etc.: 1 513 247 Distribution format: tar.gz Programming language: C++ Computer: x86 PC Operating system: Linux, Microsoft Windows. Compilation requires either gcc/g++ under Linux or Visual C++ 2003/2005 and Cygwin under Windows. It has been tested using gcc 4.1.2 under Ubuntu Linux 7.04 and using Visual C

  1. Cryopreservation of Xenopus transgenic lines.

    Science.gov (United States)

    Buchholz, Daniel R; Fu, Liezhen; Shi, Yun-Bo

    2004-01-01

    Xenopus laevis has been widely used for molecular, cellular, and developmental studies. With the development of the sperm-mediated transgenic method, it is now possible to study gene function during vertebrate development by using this popular model. On the other hand, like other animal species, it is labor intensive, and the maintenance of transgenic lines is expensive. In this article, we investigated the possibility of using sperm-cryopreservation as a means to preserve transgenic frog lines. We demonstrated that cryopreserved sperms are viable but not fertile under our in vitro fertilization (IVF) conditions. However, by microinjecting cryopreserved sperm nuclei, we successfully regenerated a transgenic line carrying a double promoter transgene construct, where the marker gene encoding the green fluorescent protein (GFP) is driven by the gamma-crystallin gene promoter and a gene of interest, encoding a fusion protein of GFP with the matrix metalloproteinase stromelysin-3 (ST3-GFP), is driven by a heat shock-inducible promoter. We demonstrated the functional transmission of the ST3-GFP transgene by analyzing the phenotype of the F1 animals after heat-shock to induce its expression. Our method thus provides an inexpensive means to preserve transgenic frog lines and a convenient way for distribution of transgenic lines. Furthermore, the ease with which to microinject nuclei compared to the technically demanding transgenesis procedure with variable outcome should facilitate more laboratories to use transgenic Xenopus laevis for functional studies in vivo. Mol. Reprod. Dev. 67: 65-69, 2004. PMID:14648875

  2. Estimation of Line Efficiency by Aggregation

    NARCIS (Netherlands)

    M.B.M. de Koster (René)

    1987-01-01

    textabstractPresents a multi-stage flow lines with intermediate buffers approximated by two-stage lines using repeated aggregation. Characteristics of the aggregation method; Problems associated with the analysis and design of production lines.

  3. Animated construction of line drawings

    KAUST Repository

    Fu, Hongbo

    2011-12-01

    Revealing the sketching sequence of a line drawing can be visually intriguing and used for video-based storytelling. Typically this is enabled based on tedious recording of artists\\' drawing process. We demonstrate that it is often possible to estimate a reasonable drawing order from a static line drawing with clearly defined shape geometry, which looks plausible to a human viewer. We map the key principles of drawing order from drawing cognition to computational procedures in our framework. Our system produces plausible animated constructions of input line drawings, with no or little user intervention. We test our algorithm on a range of input sketches, with varying degree of complexity and structure, and evaluate the results via a user study. We also present applications to gesture drawing synthesis and drawing animation creation especially in the context of video scribing.

  4. Animated construction of line drawings

    KAUST Repository

    Fu, Hongbo

    2011-12-01

    Revealing the sketching sequence of a line drawing can be visually intriguing and used for video-based storytelling. Typically this is enabled based on tedious recording of artists\\' drawing process. We demonstrate that it is often possible to estimate a reasonable drawing order from a static line drawing with clearly defined shape geometry, which looks plausible to a human viewer. We map the key principles of drawing order from drawing cognition to computational procedures in our framework. Our system produces plausible animated constructions of input line drawings, with no or little user intervention. We test our algorithm on a range of input sketches, with varying degree of complexity and structure, and evaluate the results via a user study. We also present applications to gesture drawing synthesis and drawing animation creation especially in the context of video scribing. © 2011 ACM.

  5. Balmer line shifts in quasars

    CERN Document Server

    Sulentic, J W; Del Olmo, A; Zamfir, S

    2015-01-01

    We offer a broad review of Balmer line phenomenology in type 1 active galactic nuclei, briefly sum- marising luminosity and radio loudness effects, and discussing interpretation in terms of nebular physics along the 4D eigenvector 1 sequence of quasars. We stress that relatively rare, peculiar Balmer line profiles (i.e., with large shifts with respect to the rest frame or double and multiple peaked) that start attracted attentions since the 1970s are still passable of multiple dynamical interpretation. More mainstream objects are still not fully understood as well, since competing dynamical models and geometries are possible. Further progress may come from inter-line comparison across the 4D Eigenvector 1 sequence.

  6. Modeling molecular hyperfine line emission

    CERN Document Server

    Keto, Eric

    2010-01-01

    In this paper we discuss two approximate methods previously suggested for modeling hyperfine spectral line emission for molecules whose collisional transitions rates between hyperfine levels are unknown. Hyperfine structure is seen in the rotational spectra of many commonly observed molecules such as HCN, HNC, NH3, N2H+, and C17O. The intensities of these spectral lines can be modeled by numerical techniques such as Lambda-iteration that alternately solve the equations of statistical equilibrium and the equation of radiative transfer. However, these calculations require knowledge of both the radiative and collisional rates for all transitions. For most commonly observed radio frequency spectral lines, only the net collisional rates between rotational levels are known. For such cases, two approximate methods have been suggested. The first method, hyperfine statistical equilibrium (HSE), distributes the hyperfine level populations according to their statistical weight, but allows the population of the rotationa...

  7. Research on Distance Judgement Method from Point to Line to Generate a Line%Research on Distance Judgement Method from Point to Line to Generate a Line

    Institute of Scientific and Technical Information of China (English)

    LU Di; WANG Jian-xin; LIJta-feng; TIAN Ye

    2011-01-01

    Regarding the problem that the traditional straight-line generating has a low accuracy, we study straightline generating with the distance of point to line. We explore generating a line to approximate the ideal line and the issue is to pick out the pixel point of approximating the ideal line. The paper plays a significant scientific role in elucidating linear optimization norm and it lays a foundation for showing a straight line. The algorithm is valuable for computer graphics.

  8. Petrol Pipe Line Telemonitoring Design

    OpenAIRE

    Abdelrasoul Jabar Alzubaidi

    2015-01-01

    Petrol pipe lines are subjected to different types of malfunction. The malfunction can happen due to technical faults or it may be due to a gangsters attack on the petrol pipes in order to hinder the petrol pumping operations.. The damage of the petrol pipes causes a loss of a large amount of petrol from the pipe lines. Petrol pipe damage also causes fires and pollution to the environments . Such operations causes a lot of loss in economy to the country concerned where the sabotag...

  9. Helium transfer line installation details.

    CERN Multimedia

    G. Perinic

    2007-01-01

    A particularity of the 32 m long four in one helium transfer line in between the cold box in USC55 and the cavern UX5 is the fact that the transfer line passes through a hole in the crane rail support beam. In order to ensure the alignment of the suspension rail in the interconnecting tunnel with the hole in the rail support as well as the connection points at both ends required precise measurements of the given geometries as well as the installation of a temporary target for the verification of the theoretical predictions.

  10. Quasistellar Objects Intervening Absorption Lines

    CERN Document Server

    Charlton, J C; Charlton, Jane C.; Churchill, Christopher W.

    2000-01-01

    We briefly review, at a level appropriate for graduate students and non-specialists, the field of quasar absorption lines (QALs). Emphasis is on the intervening absorbers. We present the anatomy of a quasar spectrum due to various classes of intervening absorption systems, and a brief historical review of each absorber class (Lyman-alpha forest and Lyman limit systems, and metal-line and damped Lyman-alpha absorbers). We also provide several heuristic examples on how the physical properties of both the intergalactic medium and the gaseous environments associated with earlier epoch galaxies can be inferred from QALs. The evolution of these environments from z=4 are discussed.

  11. Personal on-line payments

    OpenAIRE

    Kuttner, Kenneth N.; James J. McAndrews

    2001-01-01

    The swift growth of e-commerce and the Internet has led to the development of a new form of electronic funds transfer—the personal on-line payment—that uses web and e-mail technologies to initiate and confirm payments. This article describes this payment instrument and the trends that have given rise to it. The authors explain that personal on-line payment systems are already providing a convenient alternative to checks, money orders, and cash, and may replace credit cards for some small-scal...

  12. Software product lines : Organizational alternatives

    NARCIS (Netherlands)

    Bosch, J

    2001-01-01

    Software product lines enjoy increasingly wide adoption in the software industry. Most authors focus on the technical and process aspects and assume an organizational model consisting of a domain engineering unit and several application engineering units. In our cooperation with several software dev

  13. CERN Video News on line

    CERN Document Server

    2003-01-01

    The latest CERN video news is on line. In this issue : an interview with the Director General and reports on the new home for the DELPHI barrel and the CERN firemen's spectacular training programme. There's also a vintage video news clip from 1954. See: www.cern.ch/video or Bulletin web page

  14. Teachers' Conceptions of Tangent Line

    Science.gov (United States)

    Paez Murillo, Rosa Elvira; Vivier, Laurent

    2013-01-01

    In order to study the conceptions, and their evolutions, of the tangent line to a curve an updating workshop which took place in Mexico was designed for upper secondary school teachers. This workshop was planned using the methodology of cooperative learning, scientific debate and auto reflection (ACODESA) and the conception-knowing-concept model…

  15. A Poncelet theorem for lines

    CERN Document Server

    Vallès, Jean

    2012-01-01

    Our aim is to prove a Poncelet type theorem for a line configuration on the complex projective. More precisely, we say that a polygon with 2n sides joining 2n vertices A1, A2,..., A2n is well inscribed in a configuration Ln of n lines if each line of the configuration contains exactly two points among A1, A2, ..., A2n. Then we prove : "Let Ln be a configuration of n lines and D a smooth conic in the complex projective plane. If it exists one polygon with 2n sides well inscribed in Ln and circumscribed around D then there are infinitely many such polygons. In particular a general point in Ln is a vertex of such a polygon." We propose an elementary proof based on Fr\\'egier's involution. We begin by recalling some facts about these involutions. Then we explore the following question : When does the product of involutions correspond to an involution? It leads to Pascal theorem, to its dual version proved by Brianchon, and to its generalization proved by M\\"obius.

  16. Online matching on a line

    NARCIS (Netherlands)

    Fuchs, Bernard; Hochstättler, Winfried; Kern, Walter

    2005-01-01

    Given a set S c R of points on the line, we consider the task of matching a sequence (r1,r2,…) of requests in R to points in S. It has been conjectured [Online Algorithms: The State of the Art, Lecture Notes in Computer Science, Vol. 1442, Springer, Berlin, 1998, pp. 268–280] that there exists a 9-c

  17. Coiled transmission line pulse generators

    Energy Technology Data Exchange (ETDEWEB)

    McDonald, Kenneth Fox (Columbia, MO)

    2010-11-09

    Methods and apparatus are provided for fabricating and constructing solid dielectric "Coiled Transmission Line" pulse generators in radial or axial coiled geometries. The pour and cure fabrication process enables a wide variety of geometries and form factors. The volume between the conductors is filled with liquid blends of monomers, polymers, oligomers, and/or cross-linkers and dielectric powders; and then cured to form high field strength and high dielectric constant solid dielectric transmission lines that intrinsically produce ideal rectangular high voltage pulses when charged and switched into matched impedance loads. Voltage levels may be increased by Marx and/or Blumlein principles incorporating spark gap or, preferentially, solid state switches (such as optically triggered thyristors) which produce reliable, high repetition rate operation. Moreover, these Marxed pulse generators can be DC charged and do not require additional pulse forming circuitry, pulse forming lines, transformers, or an a high voltage spark gap output switch. The apparatus accommodates a wide range of voltages, impedances, pulse durations, pulse repetition rates, and duty cycles. The resulting mobile or flight platform friendly cylindrical geometric configuration is much more compact, light-weight, and robust than conventional linear geometries, or pulse generators constructed from conventional components. Installing additional circuitry may accommodate optional pulse shape improvements. The Coiled Transmission Lines can also be connected in parallel to decrease the impedance, or in series to increase the pulse length.

  18. Advanced optical delay line demonstrator

    NARCIS (Netherlands)

    Dool, T.C. van den; Kamphues, F.G.; Fouss, B.; Henrioulle, K.; Hogenhuis, H.

    2004-01-01

    TNO TPD, in cooperation with Micromega-Dynamics and Dutch Space, has designed an advanced Optical Delay Line (ODL) for use in future ground based and space interferometry missions. The work is performed under NIVR contract in preparation for GENIE and DARWIN. Using the ESO PRIMA DDL requirements as

  19. Assigning agents to a line

    DEFF Research Database (Denmark)

    Hougaard, Jens Leth; Moreno-Ternero, Juan D.; Østerdal, Lars Peter Raahave

    2014-01-01

    We consider the problem of assigning agents to slots on a line, where only one agent can be served at a slot and each agent prefers to be served as close as possible to his target. Our focus is on aggregate gap minimizing methods, i.e., those that minimize the total gap between targets and assigned...

  20. CIV Line-Width Anomalies

    DEFF Research Database (Denmark)

    Denney, Kelly D.; Pogge, Richard W.; Assef, Roberto J.;

    2013-01-01

    Comparison of six high-redshift quasar spectra obtained with the Large Binocular Telescope with previous observations from the Sloan Digital Sky Survey shows that failure to correctly identify absorption and other problems with accurate characterization of the CIV emission line profile in low S...

  1. Managing first-line failure

    Directory of Open Access Journals (Sweden)

    David A Cooper

    2014-11-01

    Full Text Available WHO standard of care for failure of a first regimen, usually 2N(tRTI's and an NNRTI, consists of a ritonavir-boosted protease inhibitor with a change in N(tRTI's. Until recently, there was no evidence to support these recommendations which were based on expert opinion. Two large randomized clinical trials, SECOND LINE and EARNEST both showed excellent response rates (>80% for the WHO standard of care and indicated that a novel regimen of a boosted protease inhibitor with an integrase inhibitor had equal efficacy with no difference in toxicity. In EARNEST, a third arm consisting of induction with the combined protease and integrase inhibitor followed by protease inhibitor monotherapy maintenance was inferior and led to substantial (20% protease inhibitor resistance. These studies confirm the validity of the current recommendations of WHO and point to a novel public health approach of using two new classes for second line when standard first-line therapy has failed, which avoids resistance genotyping. Notwithstanding, adherence must be stressed in those failing first-line treatments. Protease inhibitor monotherapy is not suitable for a public health approach in low- and middle-income countries.

  2. Allele frequencies of 5 short tandem repeat loci of Kashin-Beck disease patients on chromosome 12%大骨节病患者12号染色体5个短串联重复序列位点基因频率分析

    Institute of Scientific and Technical Information of China (English)

    平智广; 刘莉; 郭雄

    2008-01-01

    Objective To analyze the allele frequencies of 5 short tandem repeat(STR)loci(D12S313,D12S304,D12S1640,D12S1708 and D12S1583)on chromosome 12 among Kashin-Beck disease(KBD)patients and the control population living in the area suffered from KBD.Methods Fifty KBD patient8 and 50 non-KBD patients were chosen in endemic afea of Shaanxi Province,5 STR loci on chromosome 12 were genotyped by the technology of polymerase chain reacfion(PCR)and capillary electmphoresis.The pelymorphisms of STR in these popIllations were analyzed.The allele and genotype frequencies of each STR in the corresponding groups were caleulated and compared. Results In KBD group,the 5 STR loci had 8,6,7,5 and 11 types ofalleles and 17,11,15,8 and 28 genotypes, respectively;while in the control group,the number of aUele types of 5 STR loci were 6,8,6,4 and 10,the number of genotype of those loci were 13,21,14,8 and 23,respectively The allele frequence of D12S304 locus was statiBtically significant between KBD patients and controls(P<0.05),especially for the 319 bp allele(P<0.006 25). Conclusion There is an association between D12S304 locus and KBD.The 319 bp allele might play the key role.%目的 分析大骨节病(Kashin-Beck disease,KBD)病区患者与非患者在12号染色体上5个短串联重复序列(short tandem repeat,STR)位点的多态性并比较其差异.方法 在陕西省KBD病区选择KBD患者(病例组)和非KBD患者(对照组)各50人,采集静脉血,利用PCR扩增和毛细管电泳技术,对12号染色体上5个STR位点(D12S313、D12S304、D12S1640、D12S1708和D12S1583)进行分型,分析各位点在上述人群中的多态性,计算5个位点在相应人群中等位基因与基因型频率,对各位点的等位基冈及基因型频率进行比较.结果 上述5种位点,病例组分别检出8,6、7、5和11种等位基因以及17、11、15、8和28种基因型;在对照组中检出6、8、6、4和10种等位基因以及13、21、14、8和23种基因型;在D12S304位点,病

  3. 30 CFR 57.6803 - Blasting lines.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Blasting lines. 57.6803 Section 57.6803 Mineral... and Underground § 57.6803 Blasting lines. Permanent blasting lines shall be properly supported. All blasting lines shall be insulated and kept in good repair. General Requirements—Surface and Underground...

  4. 30 CFR 56.6803 - Blasting lines.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Blasting lines. 56.6803 Section 56.6803 Mineral Resources MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR METAL AND NONMETAL MINE SAFETY AND... Blasting lines. Permanent blasting lines shall be properly supported. All blasting lines shall be...

  5. Thyroid cell lines in research on goitrogenesis.

    Science.gov (United States)

    Gerber, H; Peter, H J; Asmis, L; Studer, H

    1991-12-01

    Thyroid cell lines have contributed a lot to the understanding of goitrogenesis. The cell lines mostly used in thyroid research are briefly discussed, namely the rat thyroid cell lines FRTL and FRTL-5, the porcine thyroid cell lines PORTHOS and ARTHOS, The sheep thyroid cell lines OVNIS 5H and 6H, the cat thyroid cell lines PETCAT 1 to 4 and ROMCAT, and the human thyroid cell lines FTC-133 and HTh 74. Chinese hamster ovary (CHO) cells and COS-7 cells, stably transfected with TSH receptor cDNA and expressing a functional TSH receptor, are discussed as examples for non-thyroidal cells, transfected with thyroid genes. PMID:1726925

  6. Cohomology of line bundles: Applications

    Science.gov (United States)

    Blumenhagen, Ralph; Jurke, Benjamin; Rahn, Thorsten; Roschy, Helmut

    2012-01-01

    Massless modes of both heterotic and Type II string compactifications on compact manifolds are determined by vector bundle valued cohomology classes. Various applications of our recent algorithm for the computation of line bundle valued cohomology classes over toric varieties are presented. For the heterotic string, the prime examples are so-called monad constructions on Calabi-Yau manifolds. In the context of Type II orientifolds, one often needs to compute cohomology for line bundles on finite group action coset spaces, necessitating us to generalize our algorithm to this case. Moreover, we exemplify that the different terms in Batyrev's formula and its generalizations can be given a one-to-one cohomological interpretation. Furthermore, we derive a combinatorial closed form expression for two Hodge numbers of a codimension two Calabi-Yau fourfold.

  7. Line Creep in Paper Peeling

    Directory of Open Access Journals (Sweden)

    Rosti J.

    2010-06-01

    Full Text Available We have studied experimentally the dynamics of the separation of a sheet of paper into two halves in a peeling configuration. The experimental setup consists of a peeling device, where a fracture front is driven along the plane of the paper, with a constant force. The theoretical picture is how an elastic line interacts with a random landscape of fracture toughness. We compare the results with theoretical simulations in several aspects. One recent finding concerns the autocorrelation function of the average front position. The data from the experiments produces so-called cusps or singularities in the correlation function, as predicted by the functional renormalization group theory for elastic lines. Comparisons with simulations with either a short range or a long range elastic kernel demonstrate that the latter agrees with the experimental observations, as expected.

  8. Transversal Lines of the Debates

    Directory of Open Access Journals (Sweden)

    Yolanda Onghena

    1998-12-01

    Full Text Available The Transversal Lines of the Debates gathers for publication the presentations of the scholars invited to the seminar. In the papers, Yolanda Onghena observes that the evolution from the cultural to the inter-cultural travels along four axes: the relations between cultureand society; the processes of change within identity-based dynamics; the representations of the Other; and, interculturality. Throughout the presentations and subsequent debates, whenever the different participants referred to aspects of the cultural identity problematic--”angst”, “obsession”, “deficit”, manipulation”, and others, these same participants in the Transversal Lines of the Debates also showed that, in certain areas, an optimistic viewpoint is not out of the question.

  9. On-line moisture analysis

    CERN Document Server

    Cutmore, N G

    2002-01-01

    Measurement of the moisture content of iron ore has become a key issue for controlling moisture additions for dust suppression. In most cases moisture content is still determined by manual or automatic sampling of the ore stream, followed by conventional laboratory analysis by oven drying. Although this procedure enables the moisture content to be routinely monitored, it is too slow for control purposes. This has generated renewed interest in on-line techniques for the accurate and rapid measurement of moisture in iron ore on conveyors. Microwave transmission techniques have emerged over the past 40 years as the dominant technology for on-line measurement of moisture in bulk materials, including iron ores. Alternative technologies have their limitations. Infra-red analysers are used in a variety of process industries, but rely on the measurement of absorption by moisture in a very thin surface layer. Consequently such probes may be compromised by particle size effects and biased presentation of the bulk mater...

  10. Line graphs as social networks

    CERN Document Server

    Krawczyk, Malgorzata; Mańka-Krasoń, Anna; Kułakowski, Krzysztof

    2010-01-01

    The line graphs are clustered and assortative. They share these topological features with some social networks. We argue that this similarity reveals the cliquey character of the social networks. In the model proposed here, a social network is the line graph of an initial network of families, communities, interest groups, school classes and small companies. These groups play the role of nodes, and individuals are represented by links between these nodes. The picture is supported by the data on the LiveJournal network of about 8 x 10^6 people. In particular, sharp maxima of the observed data of the degree dependence of the clustering coefficient C(k) are associated with cliques in the social network.

  11. Line graphs as social networks

    Science.gov (United States)

    Krawczyk, M. J.; Muchnik, L.; Mańka-Krasoń, A.; Kułakowski, K.

    2011-07-01

    It was demonstrated recently that the line graphs are clustered and assortative. These topological features are known to characterize some social networks [M.E.J. Newman, Y. Park, Why social networks are different from other types of networks, Phys. Rev. E 68 (2003) 036122]; it was argued that this similarity reveals their cliquey character. In the model proposed here, a social network is the line graph of an initial network of families, communities, interest groups, school classes and small companies. These groups play the role of nodes, and individuals are represented by links between these nodes. The picture is supported by the data on the LiveJournal network of about 8×10 6 people.

  12. Constructions from Dots and Lines

    CERN Document Server

    Rodriguez, Marko A

    2010-01-01

    A graph is a data structure composed of dots (i.e. vertices) and lines (i.e. edges). The dots and lines of a graph can be organized into intricate arrangements. The ability for a graph to denote objects and their relationships to one another allow for a surprisingly large number of things to be modeled as a graph. From the dependencies that link software packages to the wood beams that provide the framing to a house, most anything has a corresponding graph representation. However, just because it is possible to represent something as a graph does not necessarily mean that its graph representation will be useful. If a modeler can leverage the plethora of tools and algorithms that store and process graphs, then such a mapping is worthwhile. This article explores the world of graphs in computing and exposes situations in which graphical models are beneficial.

  13. Visual SLAM using straight lines

    OpenAIRE

    Mees Martínez, Oier

    2013-01-01

    The present thesis is focuses on the problem of Simultaneous Localisation and Mapping (SLAM) using only visual data (VSLAM). This means to concurrently estimate the position of a moving camera and to create a consistent map of the environment. Since implementing a whole VSLAM system is out of the scope of a degree thesis, the main aim is to improve an existing visual SLAM system by complementing the commonly used point features with straight line primitives. This enables more accurate...

  14. Assembly delay line pulse generators

    CERN Multimedia

    1971-01-01

    Assembly of six of the ten delay line pulse generators that will power the ten kicker magnet modules. One modulator part contains two pulse generators. Capacitors, inductances, and voltage dividers are in the oil tank on the left. Triggered high-pressure spark gap switches are on the platforms on the right. High voltage pulse cables to the kicker magnet emerge under the spark gaps. In the centre background are the assembled master gaps.

  15. ac transmission line field measurements

    Energy Technology Data Exchange (ETDEWEB)

    Kotter, F.R.; Misakian, M.

    1977-11-01

    The concern in recent years over the environmental effects of electric and magnetic fields from high voltage transmission lines has also focused attention on the accuracy of measurements of these fields. Electric field meters are discussed in terms of theory of operation, parameters affecting performance, meter performance under field and laboratory conditions, and calibration procedures. The performance and calibration of magnetic field meters is described. (LCL)

  16. Entering the German Gas market in Lübeck

    OpenAIRE

    Amith, Azmi; Finstad, Kenneth; Lie, Geir Andre

    2009-01-01

    Gasnor AS is a Norwegian Gas company consisting of 50 employees. Gasnor is characterizing Norway as its main market, with their main activities on the west side of Norway, where they have their main office. Nowadays they are considering expansion to the German market, but they already have some international activities, delivering gas to parts of England and Sweden. Since Gasnor are planning on expansion to Germany they have asked us to make a market research for them, and t...

  17. Kaksikud lahendavad geneetilised mõistatused / Rasmus Thirup Beck

    Index Scriptorium Estoniae

    Beck, Rasmus Thirup

    2015-01-01

    Maailma ainsate astronautidest ühemunarakukaksikute Mark ja Scott Kellyga tehtud katsete ajal tehakse kindlaks, kuidas reageerib inimese organism pikaajalisele viibimisele kosmosekeskkonnas. Ka teistest kaksikute uuringutest

  18. Maakoolid ja koduõpe Norras / Christian W. Beck

    Index Scriptorium Estoniae

    Beck, Christian W.

    2007-01-01

    Tänapäevane koduõpe sai Norras alguse aastatel 1991-1994. Aastail 1997-2004 püüdis meedia tähelepanu väikeste koolide sulgemine maarajoonides. Rahvas tahtis aga, et nende kodukohas oleks kool, ning kasutas oma õigust taotleda vabakooli. Avalduse käsitlemise ajal õpetasid vanemad lapsi kodus. Kohalikud koolivõimud püüdsid vanemaid takistada. Aktsiooni tulemuseks oli uut tüüpi külakoolide rajamine. Koduõpe kui väikekoolide ellujäämisstrateegia

  19. Avalik kiri Euroopa tulevikust / Anthony Giddens, Ulrich Beck

    Index Scriptorium Estoniae

    Giddens, Anthony

    2005-01-01

    Autorid kutsuvad üles mõtlema Euroopa Liidust mitte kui "lõpetamata (rahvus)riigist" või "poolikust föderaalriigist", vaid pigem kui uuelaadsest kosmopoliitsest projektist. Kui Euroopa soovib, et teda maailmas kuulda võetaks, siis ei saa me deklareerida laienemise lõppemist ega loobuda EL-i juhtimismudeli muutmisest

  20. Globalisation, Environmental Degradation and Ulrich Beck's Risk Society

    OpenAIRE

    Brent K. Marshall

    1999-01-01

    This paper is organised in three interconnected parts. First, contemporary political economic approaches to understanding the structure of the global economic system are outlined and synthesised. Specifically, it is suggested that the current structural configuration of the globe is a transitional phase between the spatially-bounded configuration hypothesised by world-system theory and the configuration hypothesised by globalisation theorists. Second, the contemporary problem of environmental...

  1. QSO Absorption Lines from QSOs

    CERN Document Server

    Bowen, D V; Ménard, B; Chelouche, D; Inada, N; Oguri, M; Richards, G T; Strauss, M A; Vanden Berk, Daniel E; York, D G; Bowen, David V.; Hennawi, Joseph F.; Menard, Brice; Chelouche, Doron; Inada, Naohisa; Oguri, Masamune; Richards, Gordon T.; Strauss, Michael A.; Berk, Daniel E. Vanden; York, Donald G.

    2006-01-01

    We present the results of a search for metal absorption lines in the spectra of background QSOs whose sightlines pass close to foreground QSOs. We detect MgII(2796,2803) absorption in Sloan Digital Sky Survey (SDSS) spectra of four z>1.5 QSOs whose lines of sight pass within 26-98 kpc of lower redshift (z~0.5-1.5) QSOs. The 100% [4/4 pairs] detection of MgII in the background QSOs is clearly at odds with the incidence of associated (z_abs ~ z_em) systems -- absorbers which exist towards only a few percent of QSOs. Although the quality of our foreground QSO spectra is not as high as the SDSS data, absorption seen towards one of the background QSOs clearly does not show up at the same strength in the spectrum of the corresponding foreground QSO. This implies that the absorbing gas is distributed inhomogeneously around the QSO, presumably as a direct consequence of the anisotropic emission from the central AGN. We discuss possible origins for the MgII lines, including: absorption by gas from the foreground QSO h...

  2. Workshop on Radio Recombination Lines

    CERN Document Server

    1980-01-01

    Since their first detection 15 years ago, radio recombination lines from several elements have been observed in a wide variety of objects including HII regions, planetary nebulae, molecular clouds, the diffuse interstellar medium, and recently, other galaxies. The observations span almost the entire range from 0.1 to 100 GHz, and employ both single­ djsh and aperture synthesis techniques. The theory of radio recombination lines has also advanced strongly, to the point where it is perhaps one of the best-understood in astro­ physics. In a parallel development, it has become possible over the last decade to study these same highly-excited atoms in the laboratory; this work provides further confirmation of the theoretical framework. However there has been continuing controversy over the astrophysical interpre­ tation of radio recombination line observations, especially regarding the role of stimulated emission. A workshop was held in Ottawa on 24-25 August, 1979, bringing together many of the active scientist...

  3. 49 CFR 192.707 - Line markers for mains and transmission lines.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false Line markers for mains and transmission lines. 192... § 192.707 Line markers for mains and transmission lines. (a) Buried pipelines. Except as provided in... buried main and transmission line: (1) At each crossing of a public road and railroad; and (2)...

  4. Second-line treatment of recurrent HNSCC: tumor debulking in combination with high-dose-rate brachytherapy and a simultaneous cetuximab-paclitaxel protocol

    International Nuclear Information System (INIS)

    After the failure of first-line treatment, the clinical prognosis in head and neck cancer (HNSCC) deteriorates. Effective therapeutic strategies are limited due to the toxicity of previous treatments and the diminished tolerance of surrounding normal tissue. This study demonstrates a promising second-line regimen, with function preserving surgical tumor debulking, followed by a combination of postoperative interstitial brachytherapy and a simultaneous protocol of cetuximab and taxol. From January 2006 to May 2013, 197 patients with HNSCC were treated with brachytherapy at the University Hospital Schleswig-Holstein Campus Lübeck, including 94 patients due to recurrent cancer. Within these, 18 patients were referred to our clinic because of early progressive disease following first- or second-line treatment failure. They received the new palliative regimen. A matched-pair analysis including recurrent tumor stage, status of resection margins, tissue invasion and previous therapy was performed to evaluate this treatment retrospectively. Overall survival (OS), disease-free survival (DFS), functional outcome and treatment toxicity was analyzed on the basis of medical records and follow-up data. DFS and OS of the study group were 8.7 and 14.8 months. Whereas, DFS and OS of the control group, treated only by function preserving tumor debulking and brachytherapy, was 3.9 and 6.1 months respectively. This demonstrates a positive trend through the additional use of the cetuximab-taxane protocol. Furthermore, no increase of therapy induced toxicities was displayed. Pre-treated patients with a further relapse benefit from the ‘cetuximab-taxane recurrency scheme’. It seems to be a valuable complement to interdisciplinary and multimodal tumor therapy, which improves OS and results in acceptable toxicity. The online version of this article (doi:10.1186/s13014-016-0583-0) contains supplementary material, which is available to authorized users

  5. service line analytics in the new era.

    Science.gov (United States)

    Spence, Jay; Seargeant, Dan

    2015-08-01

    To succeed under the value-based business model, hospitals and health systems require effective service line analytics that combine inpatient and outpatient data and that incorporate quality metrics for evaluating clinical operations. When developing a framework for collection, analysis, and dissemination of service line data, healthcare organizations should focus on five key aspects of effective service line analytics: Updated service line definitions. Ability to analyze and trend service line net patient revenues by payment source. Access to accurate service line cost information across multiple dimensions with drill-through capabilities. Ability to redesign key reports based on changing requirements. Clear assignment of accountability. PMID:26548137

  6. A contrario line segment detection

    CERN Document Server

    von Gioi, Rafael Grompone

    2014-01-01

    The reliable detection of low-level image structures is an old and still challenging problem in computer vision. This?book leads a detailed tour through the LSD algorithm, a line segment detector designed to be fully automatic. Based on the a contrario framework, the algorithm works efficiently without the need of any parameter tuning. The design criteria are thoroughly explained and the algorithm's good and bad results are illustrated on real and synthetic images. The issues involved, as well as the strategies used, are common to many geometrical structure detection problems and some possible

  7. The appearance of beam lines

    Energy Technology Data Exchange (ETDEWEB)

    Carey, D.C.

    1993-05-01

    The combination of an existing graphics package with a large program like TRANSPORT has often resulted in considerable modification to the large program. Use of other graphics package has resulted in essentially having to repeat the work. This difficulty has been avoided in a modification of TRANSPORT which produce layouts of beam lines. Drawings of the reference trajectory and three-dimensional images of all magnets are made by the graphics package TOP DRAWER. Nothing specific to TOP DRAWER or any other graphics has been incorporated into TRANSPORT. If a user is with a different graphics package he or she can then begin usage of this alternate package essentially immediately.

  8. Voltage Upgrading of Overhead Lines

    OpenAIRE

    Olsen, Anders Tuhus

    2010-01-01

    Statnett wants to increase the transmission capacity in their 300 kV overhead lines by upgrading the operating voltage to 420 kV. To make this possible some modifications must be done. Insulator strings have to be elongated by two to four insulators and the air clearances must be checked. EN standards provide guidelines for how to calculate the air clearances adequately to provide required safety margins.It turns out that the formulas given by the standards provide greater safety margin than ...

  9. On line ultrasonic integrated backscatter

    International Nuclear Information System (INIS)

    A new equipment for on-line evaluation of index based on two-dimensional integrated backscatter from ultrasonic images is described. The new equipment is fully integrated into a B-mode ultrasonic apparatus which provides a simultaneous display of conventional information together with parameters of tissue characterization. The system has been tested with a backscattering model of microbubbles in polysaccharide solution, characterized by a physiological exponential time decay. An exponential fitting to the experimental data was performed which yielded r=0.95

  10. EM transmission-line metamaterials

    Directory of Open Access Journals (Sweden)

    George V. Eleftheriades

    2009-03-01

    Full Text Available Metamaterials are understood to be artificially engineered materials that exhibit unusual or difficult to obtain electromagnetic (EM properties. Such properties would include negative or low values of permittivity, permeability and index of refraction. In this article, we review the fundamentals of metamaterials with emphasis on negative-refractive-index ones, which are synthesized using loaded transmission lines. A number of applications of such metamaterials are discussed, including peculiar lenses that can overcome the diffraction limit and small antennas for emerging wireless communication applications.

  11. Understanding broadband over power line

    CERN Document Server

    Held, Gilbert

    2006-01-01

    Understanding Broadband over Power Line explores all aspects of the emerging technology that enables electric utilities to provide support for high-speed data communications via their power infrastructure. This book examines the two methods used to connect consumers and businesses to the Internet through the utility infrastructure: the existing electrical wiring of a home or office; and a wireless local area network (WLAN) access point.Written in a practical style that can be understood by network engineers and non-technologists alike, this volume offers tutorials on electric utility infrastru

  12. 四川省红原县大骨节病区水化学特征与致病因子初探%Analysis of the Pathogenic Factors and Hydrogeochemistry Characters of Drinking Water in Kaschin-Beck Disease Area of Hongyuan County,Sichuan Province, China

    Institute of Scientific and Technical Information of China (English)

    何锦; 范基姣; 贾小丰; 李戌; 李亮; 郭欣欣

    2012-01-01

    Kaschin-Beck disease(KBD)is a local endemic osteoarthritis disease. Hongyuan County is one of the serious KBD area in China. A total of 37 groundwater and surface water samples were collected in Sep tember 2009. The water quality data in this research include major cations, anions, and trace elements. The results indicate that hydrochemical types of disease areas are mainly low degree of mineralization and HCO3-Ca and the water source is melt water and rainfall. The enrichment presented by Se and Zn while Sr, Ba,F exis'ted in indigence is the the typical characteristic of the drinking-water. There were significant differences among prevalence rates of KBD by drinking different water sources with SPSS software. People drinking the surface water there are more likely to become KBD victims. According to factor analysis method and hydrogeological conditions of the study area, KBD prevalence in the study area has close rela tionship with Ca, SO4 ,Sr,F elements in drinking water. Lack of these four elements leads to prevalence of KBD increase.%通过采集我国大骨节病重病区四川省红原县病区作为饮用水源的地表水和地下水样37件,并测试其水化学成分.结果表明:病区饮用水水化学特征以低矿化度的重碳酸钙型水为主,其补给来源主要为冰雪融水和大气降水.病区饮用水化学组分中Se、Zn元素呈现富集特征,Sr、Ba、F元素处于贫乏状态.利用SPSS软件分析发现饮用不同水源间患病率有显著差异,饮用地表水较地下水更容易患病,并结合因子分析方法进一步解释了大骨节发病机理与饮用水中Ca、SO4、Sr、F4种元素的质量浓度密切相关,水中这4种元素组分的质量浓度越低,大骨节的患病率就越高.

  13. PHENIX on-line systems

    Energy Technology Data Exchange (ETDEWEB)

    Adler, S.S.; Allen, M.; Alley, G.; Amirikas, R.; Arai, Y.; Awes, T.C.; Barish, K.N.; Barta, F.; Batsouli, S.; Belikov, S.; Bennett, M.J.; Bobrek, M.; Boissevain, J.G.; Boose, S.; Britton, C.; Britton, L.; Bryan, W.L.; Cafferty, M.M.; Carey, T.A.; Chang, W.C.; Chi, C.Y.; Chiu, M.; Cianciolo, V.; Cole, B.A.; Constantin, P.; Cook, K.C.; Cunitz, H.; Desmond, E.J.; Ebisu, K.; Efremenko, Y.V.; El Chenawi, K.; Emery, M.S.; Engo, D.; Ericson, N.; Fields, D.E.; Frank, S.; Frantz, J.E.; Franz, A.; Frawley, A.D.; Fried, J.; Gannon, J.; Gee, T.F.; Gentry, R.; Giannotti, P.; Gustafsson, H.-A.; Haggerty, J.S.; Hahn, S.; Halliwell, J.; Hamagaki, H.; Hansen, A.G.; Hara, H.; Harder, J.; He, X.; Heistermann, F.; Hemmick, T.K.; Hibino, M.; Hill, J.C. E-mail: jhill@iastate.edu; Homma, K.; Jacak, B.V.; Jagadish, U.; Jia, J.; Kajihara, F.; Kametani, S.; Kamyshkov, Y.; Kandasamy, A.; Kang, J.H.; Kapustinsky, J.; Katou, K.; Kelley, M.A.; Kelly, S.; Kikuchi, J.; Kim, S.Y.; Kim, Y.G.; Kistenev, E.; Kotchetkov, D.; Kurita, K.; Lajoie, J.G.; Lenz, M.; Lenz, W.; Li, X.H.; Lin, S.; Liu, M.X.; Markacs, S.; Matathias, F.; Matsumoto, T.; Mead, J.; Mischke, R.E.; Mishra, G.C.; Moore, A.; Muniruzzamann, M.; Musrock, M.; Nagle, J.L.; Nandi, B.K.; Newby, J.; Nystrand, J.; O' Brien, E.; O' Connor, P.; Ohnishi, H.; Oskarsson, A.; Osterman, L.; Oyama, K.; Paffrath, L.; Pancake, C.E.; Pantuev, V.S.; Petridis, A.N.; Pisani, R.P.; Plagge, T.; Plasil, F.; Purschke, M.L.; Rankowitz, S.; Rao, R.; Rau, M.; Read, K.F.; Ryu, S.S.; Sakaguchi, T.; Sato, H.D.; Seto, R.; Shiina, T.; Silvermyr, D.; Simon-Gillo, J.; Simpson, M.; Sippach, W.; Skank, H.D.; Skutnik, S.; Sleege, G.A.; Smith, G.D.; Smith, M.; Stankus, P.W.; Steinberg, P.; Sugitate, T.; Sullivan, J.P.; Taketani, A.; Tamai, M.; Tanaka, Y.; Thomas, W.D.; Todd, R.; Toldo, F.; Turner, G.; Ushiroda, T.; Velkovska, J.; Hecke, H.W. van; Lith, M. van; Villatte, L.; Achen, W. von; Walker, J.W.; Wang, H.Q.; White, S.N.; Wintenberg, A.L.; Witzig, C.; Wood, L.[and others

    2003-03-01

    The PHENIX On-Line system takes signals from the Front End Modules (FEM) on each detector subsystem for the purpose of generating events for physics analysis. Processing of event data begins when the Data Collection Modules (DCM) receive data via fiber-optic links from the FEMs. The DCMs format and zero suppress the data and generate data packets. These packets go to the Event Builders (EvB) that assemble the events in final form. The Level-1 trigger (LVL1) generates a decision for each beam crossing and eliminates uninteresting events. The FEMs carry out all detector processing of the data so that it is delivered to the DCMs using a standard format. The FEMs also provide buffering for LVL1 trigger processing and DCM data collection. This is carried out using an architecture that is pipelined and deadtimeless. All of this is controlled by the Master Timing System (MTS) that distributes the RHIC clocks. A Level-2 trigger (LVL2) gives additional discrimination. A description of the components and operation of the PHENIX On-Line system is given and the solution to a number of electronic infrastructure problems are discussed.

  14. Cross delay line sensor characterization

    Energy Technology Data Exchange (ETDEWEB)

    Owens, Israel J [Los Alamos National Laboratory; Remelius, Dennis K [Los Alamos National Laboratory; Tiee, Joe J [Los Alamos National Laboratory; Buck, Steven E [Los Alamos National Laboratory; Whittemore, Stephen R [Los Alamos National Laboratory; Thompson, David C [Los Alamos National Laboratory; Shirey, Robert [Los Alamos National Laboratory

    2010-01-01

    There exists a wealth of information in the scientific literature on the physical properties and device characterization procedures for complementary metal oxide semiconductor (CMOS), charge coupled device (CCD) and avalanche photodiode (APD) format detectors. Numerous papers and books have also treated photocathode operation in the context of photomultiplier tube (PMT) operation for either non imaging applications or limited night vision capability. However, much less information has been reported in the literature about the characterization procedures and properties of photocathode detectors with novel cross delay line (XDL) anode structures. These allow one to detect single photons and create images by recording space and time coordinate (X, Y & T) information. In this paper, we report on the physical characteristics and performance of a cross delay line anode sensor with an enhanced near infrared wavelength response photocathode and high dynamic range micro channel plate (MCP) gain (> 10{sup 6}) multiplier stage. Measurement procedures and results including the device dark event rate (DER), pulse height distribution, quantum and electronic device efficiency (QE & DQE) and spatial resolution per effective pixel region in a 25 mm sensor array are presented. The overall knowledge and information obtained from XDL sensor characterization allow us to optimize device performance and assess capability. These device performance properties and capabilities make XDL detectors ideal for remote sensing field applications that require single photon detection, imaging, sub nano-second timing response, high spatial resolution (10's of microns) and large effective image format.

  15. Interlab Cell Line Collection: Bioresource of Established Human and Animal Cell Lines

    OpenAIRE

    Parodi, Barbara; Aresu, Ottavia; Visconti, Paola; Manniello, Maria Assunta; Strada, Paolo

    2015-01-01

    The Interlab Cell Line Collection (ICLC) was established in 1994 as a core facility of the National Institute of Cancer Research. It supplies: human and animal cell lines; Short Tandem Repeat (STR) profiling of human cell lines; quality control service; mycoplasma detection and eradication service; safe deposit service and patent deposit service of cell lines and hybridomas. The catalogue of services is on-line, and the cell lines are distributed all over the world. 

  16. Beam line design using G4BeamLine

    CERN Document Server

    Dogan, Arda

    2014-01-01

    In Turkey in Ankara TAEK SANAEM Proton Accelerator Facility (PAF), there is a cyclotron which produces a focused intense 30 MeV proton beam and sends this beam to four different arms, three of which uses this beam to produce pharmaceutical medicine. The remaining one is spared for R&D purposes and the idea was to use these protons coming out from the fourth arm to use space radiation tests, which cannot be done in Turkey at the moment. However, according to SCC 25100 standards which is for 30 MeV protons, the beam coming out of cyclotron is too intense and focused to use for space radiation tests. Therefore, the main aim of my project is to design a beam line which will defocus the beam and reduce the flux so that the space radiation tests can be done according to the standards of SCC 25100.

  17. State Wildlife Management Area Public Facilities - lines

    Data.gov (United States)

    Minnesota Department of Natural Resources — This line theme contains facilities and features for WMAs that are best represented as lines. WMAs are part of the Minnesota state recreation system created to...

  18. FB Line Basis for Interim Operation

    Energy Technology Data Exchange (ETDEWEB)

    Shedrow, B.

    1998-10-19

    The safety analysis of the FB-Line Facility indicates that the operation of FB-Line to support the current mission does not present undue risk to the facility and co-located workers, general public, or the environment.

  19. Line-drawing algorithms for parallel machines

    Science.gov (United States)

    Pang, Alex T.

    1990-01-01

    The fact that conventional line-drawing algorithms, when applied directly on parallel machines, can lead to very inefficient codes is addressed. It is suggested that instead of modifying an existing algorithm for a parallel machine, a more efficient implementation can be produced by going back to the invariants in the definition. Popular line-drawing algorithms are compared with two alternatives; distance to a line (a point is on the line if sufficiently close to it) and intersection with a line (a point on the line if an intersection point). For massively parallel single-instruction-multiple-data (SIMD) machines (with thousands of processors and up), the alternatives provide viable line-drawing algorithms. Because of the pixel-per-processor mapping, their performance is independent of the line length and orientation.

  20. Are plasma satellites present among chromospheric lines?

    Science.gov (United States)

    Ohman, Y.

    1983-05-01

    Published literature is examined for evidence of the presence of plasma satellites among the solar chromospheric lines. Indications are found that first-order plasma satellites sometimes appear as a pair of faint chromospheric emission lines in places where forbidden lines, mainly of metals, should be located. Evidence is seen that second-order plasma satellites are present among lines for which emission wings show asymmetry with respect to the distances from the line center and with respect to intensity. Indications are found that fourth-order plasma satellites are present as unidentified diffuse lines situated near parent lines of food strength either in emission or in absorption. All three types of satellites show electron densities on the order of a trillion/cu cm. Indications that plasma satellites may sometimes appear as faint absorption lines in the solar spectrum are discussed.

  1. Basic Stand Alone Carrier Line Items PUF

    Data.gov (United States)

    U.S. Department of Health & Human Services — This release contains the Basic Stand Alone (BSA) Carrier Line Items Public Use Files (PUF) with information from Medicare Carrier claims. The CMS BSA Carrier Line...

  2. Thermal Impedance of Rectangular Microwave Oven Linings

    Institute of Scientific and Technical Information of China (English)

    SHIShang-zhao; XUFu-qiu; 等

    1996-01-01

    Amodel was preseted for calcultaing the thermal impedance of the insulation and refractory linings of rectangular microwave ovens,of which the oven cavity's dimensions are relatively small,while the linings re relatively thick.

  3. A quadruple transmission line nitrogen laser

    OpenAIRE

    Persephonis, P.; Giannetas, B.; Rigopoulos, R.

    1983-01-01

    Theoretical considerations on the advantages of a quadruple parallel-plate transmission line nitrogen laser comparatively to a double transmission line one are given. Experimental verihcation shows that from a double line N 2 laser to a quadruple one, an increase of the peak power and energy per pulse about 50 % and 70 % respectively exists. A common spark-gap is used. Experimental curves show the peak power increase versus pressure and repetition rate. The quadruple transmission line can be ...

  4. 29 CFR 1926.956 - Underground lines.

    Science.gov (United States)

    2010-07-01

    ... 29 Labor 8 2010-07-01 2010-07-01 false Underground lines. 1926.956 Section 1926.956 Labor... Underground lines. (a) Guarding and ventilating street opening used for access to underground lines or... underground facilities, efforts shall be made to determine the location of such facilities and work...

  5. Moving droplets: The measurement of contact lines

    NARCIS (Netherlands)

    Poelma, C.; Franken, M.J.Z.; Kim, H.; Westerweel, J.

    2014-01-01

    Contact lines are the locations where a gas, liquid and a solid meet. From everyday experience we know that such contact lines can be mobile, for example in the case of a water droplet sliding over a glass surface. However, the continuum description of the flow towards or away from a contact line im

  6. High-speed Power Line Communications

    Directory of Open Access Journals (Sweden)

    Matthew N. O. Sadiku,

    2015-11-01

    Full Text Available This is the idea of using existing power lines for communication purposes. Power line communications (PLC enables network communication of voice, data, and video over direct power lines. High-speed PLC involves data rates in excess of 10 Mbps. PLC has attracted a lot of attention and has become an interesting subject of research lately.

  7. Electron differaction patterns with curved Kikuchi lines

    Science.gov (United States)

    Karakhanyan, R. K.; Karakhanyan, K. R.

    2007-09-01

    Curved Kikuchi lines have been observed in electron diffraction patterns obtained for silicon by transmission electron microscopy. It is found that the curvature of Kikuchi lines is related to the shift of point reflections from their normal positions. The formation of curved Kikuchi lines stems from the local structural defects in the crystals under study.

  8. Children's Use of Number Line Estimation Strategies

    Science.gov (United States)

    Peeters, Dominique; Degrande, Tine; Ebersbach, Mirjam; Verschaffel, Lieven; Luwel, Koen

    2016-01-01

    This study tested whether second graders use benchmark-based strategies when solving a number line estimation (NLE) task. Participants were assigned to one of three conditions based on the availability of benchmarks provided on the number line. In the bounded condition, number lines were only bounded at both sides by 0 and 200, while the midpoint…

  9. Brownian motion on a smash line

    CERN Document Server

    Ellinas, D; Ellinas, Demosthenes; Tsohantjis, Ioannis

    2000-01-01

    Brownian motion on a smash line algebra (a smash or braided version of the algebra resulting by tensoring the real line and the generalized paragrassmann line algebras), is constructed by means of its Hopf algebraic structure. Further, statistical moments, non stationary generalizations and its diffusion limit are also studied. The ensuing diffusion equation posseses triangular matrix realizations.

  10. Effect of changing grain and selenium supplementation on control of children's Kaschin-Beck disease in Qinghai province%青海省大骨节病病区换粮、补硒防治儿童大骨节病效果观察

    Institute of Scientific and Technical Information of China (English)

    李强; 白生录; 雒永宏; 曹有平; 赵志军; 周令望; 王丽华; 刘运起; 刘辉; 王虎; 何多龙; 安永清

    2010-01-01

    Objective To observe the effect of changing grain and selenium supplementation for 1-year on control of children's Kaschin-Beck disease in Qinghai province. Methods Epidemiology, clinical and right-hand X-ray examination were carried out on children aged 7 - 12 years in 2008. Patients were diagnosed and divided into 3 groups by village, control group from Xinjianping village in Guide county, changing grain group from Xiemalang village in Guide county and supplying salt with selenium and iodine group from Shanglujuan and Xialujuan villages in Xinghai county. One year before and after the treatment, right-hand X-ray photograph (including carpal bones)was taken and child hair samples were collected, selenium was detected by 2,3-diaminonaphthalene fluorescence spectrophotometry. Results After 1 year prevention and control, the detectable rate of X-ray in control group was raised from 4.88%(2/41) to 12.20%(5/41) , the detection rate in changing grain group was declined from 17.54%(10/57) to 5.26%(3/57), and from 13.51%(10/74) to 5.41%(4/74) in supplying salt with selenium and iodine group. In changing grain group, there were 10 patients, 7 cases were cured, 2 patients stable, 1 case progressed,no new case;in supplying salt with selenium and iodine group of 10 patients, 7 were cured, 3 patients stable, 1 new diagnosed case;in control group, 2 patients stable, 2 new diagnosed metaphysis cases, 1 new diagnosed metaphyseal case. Compared with control group, the difference was statistically significant between changing grain group and supplying salt with selenium and iodine group(x2 = 5.49,4.14, all P < 0.05). After 1 year control and prevention,hair selenium contents in control group and changing grain group were increased from (107.15 ± 42.30), (125.30 ±40.30)μg/kg to (108.32 ± 35.67), (135.38 ± 65.24)μg/kg, the difference was statistically insignificant(t = 0.01,0.68, all P > 0.05), and selenium contents in supplying salt with selenium and iodine group were

  11. Beck自杀意念量表中文版在大学学生中应用的信效度%Reliability and validity of the Chinese version of Beck Scate for Suicide Ideation (BSI-CV) among university students

    Institute of Scientific and Technical Information of China (English)

    李献云; 费立鹏; 张亚利; 徐东; 童永胜; 杨甫德; 况利

    2011-01-01

    Objective: To assess the reliability and validity of the Chinese version of the Beck Scale for Suicide Ideation (BSI-CV) among university students. Methods: A representative sample of 765 students from 4 of 42 universities in Chongqing was identified using a multi-stage random sampling method. Totally 629 (82%) of the identified students completed a self-completion questionnaire that included an independent item of past active suicidal ideation and the BSI-CV, which assessed suicidal ideation in the prior week and at the time in the past when the subject felt most depressed or most suicidal. Respondents were randomly assigned to fill out the questionnaire anonymously or to provide their names on the form. Three hundred and ten participants were re-administered the questionnaire 5-8 days later. Results: The Cronbach's alpha values, which assess internal consistency, were 0.78 and 0. 86, respectively for the items that assess ideation in the prior week and for items that assess ideation when most depressed. The corresponding values were 0.74 and 0. 88 for anonymous respondents, and 0. 81 and 0.84 for those who signed the form. The test-retest reliability (using the Intraclass Correlation Coefficient) were 0.56 and 0.75 for the total score in the prior week and when most depressed, respectively; 0.80 and 0. 81 for anonymous respondents, 0. 41 and 0. 69 for respondents who signed the form, respectively. The scale scores for the prior week and for when most depressed were significantly higher in respondents who independently reported prior active suicidal ideation than in those who reported no prior active ideation. Conclusion: The Chinese version of the Beck Scale for Suicide Ideation is valid and reliable when employed with university students in China The test-retest reliability measures for anonymous respondents are greater than those of respondents who provide their names.%目的:评估Beck自杀意念量表中文版(BSI-CV)在大学学生匿名与署名调查中

  12. 2009年青海省兴海县儿童大骨节病病情及影响因素调查%Investigation of state and influence factors of children's Kaschin-Beck disease in Xinghai county of Qinghai province in 2009

    Institute of Scientific and Technical Information of China (English)

    孟凡刚; 李强; 付莹; 赵志军; 周令望; 王虎; 刘辉; 李德安; 王丽华

    2012-01-01

    Objective To investigate the present prevalence state of children's Kaschin-Beck disease (KBD) in Xinghai county of Qinghai province,a relative active KBD area in 2009,and to investigate their nutritional selenium level of local children and the T-2 toxin contamination level in their staple food.Methods Right hand X-ray photographs of children aged 7 - 12 in Shang,Zhong and Xia villages of Tangnaihai countryside in Xinghai county were taken.X-ray diagnosis was carried out according to the "Diagnostic Criteria of Kashin Beck Disease" (GB 16003-1995 ).Selected samples (children's hair,drinking water and their staple food) were collected according to X-ray film taken.Selenium contents in hair,drinking water and staple food samples were measured by 2,3-diaminonaphthalene fluorescence,and T-2 toxin in staple food sample was detected with enzyme-linked immunosorbent assay(ELISA) kits.Results Total X-ray detection rate of children KBD was 12.20%(31/254) and KBD positive rate of children in Xia village was up to 14.97%(22/147),Shang village was up to 9.52%(6/63),and Zhong village was up to 6.82% (3/44).The selenium level in children's body and outer environment was very low,namely,the selenium content in hair,drinking water,wheat and flour was (0.250 ± 0.136)mg/kg,(0.156 ± 0.046)μg/L,(0.0045 ± 0.0030)mg/kg,and (0.0067 ± 0.0116)mg/kg,respectively.The T-2 toxin level was relatively high in children's staple food,which was (78.91 ± 46.17)μg/kg in wheat and (47.47 ± 46.47)μg/kg in flour.Conclusions In relative active KBD areas of Xinghai county of Qinghai province,the children's selenium nutritional level is low,and the T-2 toxin contamination level in their staple food is relatively high,which is consistent with the distribution of local children's KBD.%目的 调查青海省兴海县大骨节病相对活跃病区儿童大骨节病流行现状,以及当地儿童硒营养水平和家庭主食粮食T-2毒素污染水平.方法 2009年对兴海

  13. Changes of interleukin-2 and interferon-γ in serum and synovial fluid of patients with joint injure with Kashin-Beck disease%白细胞介素-2和干扰素-γ在大骨节病患者血清和关节滑液中的变化

    Institute of Scientific and Technical Information of China (English)

    朱参胜; 于曰祥; 王欢; 刘雯

    2010-01-01

    目的 观察白细胞介素-2(IL-2)和干扰素-γ(IFN-γ)在大骨节病(KBD)关节损伤中的变化,探讨IL-2和IFN-r在KBD关节损伤中的作用.方法 按照(GB 16003-1995),48例KBD患者和26例健康人(对照组)均来自陕西陇县KBD病区.KBD组男、女各24例,年龄在40~65岁,平均年龄51岁,采集静脉血48份和关节滑液28份(男、女各14份).对照组男、女各13人,年龄40~65岁,平均年龄49岁,采集其静脉血26份.血清、关节滑液中IL-2和IFN-γ采用酶联免疫吸附法(ELISA)测定.结果 对照组和KBD患者血清中IL-2中位数分别为46.8 ng/L和55.7 ng/L,IFN-γ分别为52.3 ng/L和48.8 ng/L,二者比较差异无统计学意义(t值分别为0.62、0.70,P均>0.05).KBD患者关节滑液中IL-2中位数为48.3 ng/L,IFN-γ为44.1g/L,关节滑液与血清比较差异无统计学意义(t值分别为0.69、1.72,P均>0.05).结论 KBD关节损伤患者血清和关节液中IL-2和IFN-γ均无显著性升高,表明在KBD的关节损伤过程中,IL-2和IFN-γ均未参与.%Objective To investigate the changes of interleukin(IL)-2 and interferon(IFN)-γin serum and synovial fluid of patients with joint injure with Kashin-Beck disease(KBD), and study the roles of IL-2 and IFN-γ in KBD joint injure. Methods In accordance with the "Diagnostic Criteria of Kashin-Beck disease"(GB16003-1995),48 cases of KBD patients and 26 healthy people(control group) from KBD endemic area in Long county Shaanxi province were enrolled in the study. KBD patient were 24 males and 24 females, respectively, aged 40 to 65 years (mean age 51 years). Forty-eight serum specimens and 28 synovial fluid specimens of patients(14 males and 14 females,respectively) were collected. Healthy control group were 13 males and 13 females, respectively. Twenty-six serum specimens of healthy controls were collected. Serum and synovial fluid IL-2 and IFN-γ levels were determined by enzyme-linked immunosorbent assay(ELISA). Results In healthy controls and KBD

  14. 大骨节病关节软骨真菌毒素环境反应基因表达谱研究%Gene expression profiling of mycotoxin-related environmental response genes in the articular cartilage of Kashin-Beck disease

    Institute of Scientific and Technical Information of China (English)

    张峰; 王伟卓; 郭雄; 武世勋; 王立新

    2012-01-01

    Objective To compare the expression profile of mycotoxin-related environmental response genes (MERGs) in the articular cartilage of patients with Kashin-Beck disease (KBD) and healthy controls,and explore the relationship between MERG and KBD.Methods Articular cartilage specimens were collected from 9 healthy human subjects and 9 adult KBD patients.Agilent microarray was used to evaluate the expression levels of MERG in cartilage specimens,and the expression ratios of MERG between KBD and healthy controls were calculated.GSEA software was used to calculate the NES scores and P values of gene ontology(GO).Results ①T-2 toxin,deoxynivalenol,zearalenone,aflatoxin B1,fumonisin B1 and ochratoxin A related 15 MERGs presented expression differences between KBD and healthy controls(ratios > 2.0 or < 0.5).Thirteen MERGs were up-regulated in KBD,including BAX,BCL2,COL5A2,FER1L3,GSTT2,IGFBP2,IGFBP4,PDE8B,SOCS3,THBS1,TMSL8,VGLL3 and TUBB2A (ratio > 2.0).Two MERGs,POSTN and FABP4,were down-regulated in KBD (ratio < 0.5).The 15 MERGs were involved in various biological processes; such as collage synthesis,apoptosis,metabolism,growth & development and so on.②Mycotoxin related 4 apoptosis GOs and 5 growth & development related GOs were up-regulated in KBD compared to healthy controls(NES > 0),including ANTI_APOPTOSIS,REGULATION_OF_PROGRAMMED_CELL_DEATH,APOPTOSIS_GO,REGULATION_OF_APOPTOSIS,ORGAN_MORPHOGENESIS,ANATOMICAL_STRUCTURE_DEVELOPMENT,ORGAN_DEVELOPMENT,SYSTEM_DEVELOPMENT and REGULATION OF DEVELOPMENTAL_PROCESS (NES > 0 and P < 0.05).Conclusions There are multiple mycotoxins related environmental response genes presenting significant expression difference between KBD cartilage and normal cartilage.Mycotoxin can affect the expression of MERGs in KBD articular cartilage,which might lead to dysfunction of chondrocytes,and articular cartilage lesions.%目的 比较分析真菌毒素环境反应基因在大骨节病(Kashin-Beck disease,KBD)和正常关节软骨

  15. Growing bubbles rising in line

    Directory of Open Access Journals (Sweden)

    John F. Harper

    2001-01-01

    Full Text Available Over many years the author and others have given theories for bubbles rising in line in a liquid. Theory has usually suggested that the bubbles will tend towards a stable distance apart, but experiments have often showed them pairing off and sometimes coalescing. However, existing theory seems not to deal adequately with the case of bubbles growing as they rise, which they do if the liquid is boiling, or is a supersaturated solution of a gas, or simply because the pressure decreases with height. That omission is now addressed, for spherical bubbles rising at high Reynolds numbers. As the flow is then nearly irrotational, Lagrange's equations can be used with Rayleigh's dissipation function. The theory also works for bubbles shrinking as they rise because they dissolve.

  16. Beam line to S155

    CERN Multimedia

    1977-01-01

    The experiment S155 was designed by the Orsay (CSNM-CNRS) Collaboration to observe the properties of exotic light nuclei. It was installed in the PS neutrino tunnel. The photo shows a mass spectrometer (in the background) on line with the PS proton beam which arrives (bottom, right) from the fast extraction FE74. Roger Fergeau stands on the left. The alkaline isotopes produced in the carbon-uranium target heated at 2000°C were swiftly extracted, mass separated, and brought to a detector behind the shielding. Sodium 34 (11 protons and 23 neutrons) was observed and its half-life of only 5 ms was measured. The excited levels 2+ of Magnesium 30 and Magnesium 32 (Sodium descendants) were localised, and the magic number 20 was found to vanish. Thus, the discovery made earlier for Sodium 30 and Sodium 32, with the same apparatus, was confirmed. (See also photo 7706511.)

  17. Magnetically insulated transmission line oscillator

    Energy Technology Data Exchange (ETDEWEB)

    Bacon, Larry D. (Albuquerque, NM); Ballard, William P. (Albuquerque, NM); Clark, M. Collins (Albuquerque, NM); Marder, Barry M. (Albuquerque, NM)

    1988-01-01

    A magnetically insulated transmission line oscillator employs self-generated magnetic fields to generate microwave energy. An anode of the oscillator includes slow-wave structures which are formed of a plurality of thin conductive vanes defining cavities therebetween, and a gap is formed between the anode and a cathode of the oscillator. In response to a pulsed voltage applied to the anode and cathode, self-generated magnetic fields arfe produced in a cross-field orientation with respect to the orientation of the electric field between the anode and the cathode. The cross-field magnetic fields insulate the flow of electrons in the gap and confine the flow of electrons within the gap.

  18. Tunable silicon CROW delay lines

    Science.gov (United States)

    Morichetti, Francesco; Canciamilla, Antonio; Torregiani, Matteo; Ferrari, Carlo; Melloni, Andrea; Martinelli, Mario

    2010-05-01

    Tunable coupled resonator optical waveguides (CROWs) are powerful and versatile devices that can be used to dynamically control the delay of optical data streams on chip. In this contribution we show that CROW delay lines fabricated on a silicon on insulator (SOI) platform are suitable for applications in the emerging scenario of optical systems at 100 Gbit/s. Issues concerning technology, design, limits and applications of SOI CROWs are discussed. The performances of silicon CROW delay lines activated by thermal tuning are compared to those of glass CROW in terms of power consumption, thermal crosstalk and reconfiguration speed. The continuous delay of 10-ps long optical pulses by 8 bit length is demonstrated by using a silicon CROW with a bandwidth of 87 GHz and made of 12 RRs. At 100 Gbit/s this structure provides comparable figures of merit (fractional delay of 0.75 bit/RR and fractional loss of 0.7 dB per bit-delay) of state-of-the art glass CROW operating at 10 Gbit/s, yet the area of the latter being three order of magnitude larger. The compatibility of silicon CROW with the emerging 100 Gbit/s systems is demonstrated by showing error-free phase-preserving propagation of a 100 Gbit/s return-to-zero (RZ) polarization-division-multiplexing (PolDM) differential quaternary phase shit keying (DQPSK) signal dynamically delayed by the CROW. It is also demonstrated that a silicon CROW can be used in a PolDM system to introduce a polarization selective delay in order to optimize the time interleaving of the two orthogonally polarized data streams.

  19. UV Emission line shifts of symbiotic binaries

    OpenAIRE

    Friedjung, M.; Mikolajewska, J.; Zajczyk, A.; Eriksson, M.

    2010-01-01

    Relative and absolute emission line shifts have been previously found for symbiotic binaries, but their cause was not clear. This work aims to better understand the emission line shifts. Positions of strong emission lines were measured on archival UV spectra of Z And, AG Dra, RW Hya, SY Mus and AX Per and relative shifts between the lines of different ions compared. Profiles of lines of RW Hya and Z And were also examined. The reality of the relative shift between resonance and intercombinati...

  20. Best Angle to Orient Two Intersecting Lines

    Energy Technology Data Exchange (ETDEWEB)

    Awwal, A S; Ferguson, S W; Shull, P B

    2006-07-25

    Fiducials in the form of intersecting straight lines are used to align the target in the final target chamber of the National Ignition Facility of Lawrence Livermore National Laboratory. One of the techniques used to locate these lines is the Hough transform. When two lines intersect at a 90 degree angle, it is tempting to orient the lines to horizontal and vertical directions. There are other possible angles at which the lines may be oriented. One question that arises while designing the fiducials is whether there is a preferred angle or range of angles that leads to higher accuracy. This work attempts to answer this question through detailed computer simulation.

  1. Transient Stability Analysis Using Transmission Line Measurement

    Institute of Scientific and Technical Information of China (English)

    蔡国伟; 程浩忠; 陈家荣; 王承民

    2004-01-01

    The novel quantitative assessment method using transmission line measurement was developed. A new style of stability criterion was suggested which is based on the line measurement. The stability indices for lines,cutsets and power system according to features of transient energy in the lines were given, which not only provide a reliable and accurate assessment of the transient stability of power system, but also can be used to assess the effect of lines and cutsets on the transient stability and identify the weak transmission segment. Examples were presented by simulation on the IEEE-39 buses test system.

  2. Analysis of on-line services

    OpenAIRE

    Chodak, Grzegorz

    2009-01-01

    The aim of this paper is to analyse on-line services as well as to classify them and show their main advantages and disadvantages. In the first part of the paper the author proposes a short taxonomy of on-line services. Then the typical course of on-line services realization is presented and the revenue models in on-line services selling are analysed. Next the main advantages and disadvantages of on-line services selling are shown. The last part of the paper describes the examples of Polish o...

  3. ALFA: an automated line fitting algorithm

    CERN Document Server

    Wesson, Roger

    2015-01-01

    I present the Automated Line Fitting Algorithm, ALFA, a new code which can fit emission line spectra of arbitrary wavelength coverage and resolution, fully automatically. In contrast to traditional emission line fitting methods which require the identification of spectral features suspected to be emission lines, ALFA instead uses a list of lines which are expected to be present to construct a synthetic spectrum. The parameters used to construct the synthetic spectrum are optimised by means of a genetic algorithm. Uncertainties are estimated using the noise structure of the residuals. An emission line spectrum containing several hundred lines can be fitted in a few seconds using a single processor of a typical contemporary desktop or laptop PC. I show that the results are in excellent agreement with those measured manually for a number of spectra. Where discrepancies exist, the manually measured fluxes are found to be less accurate than those returned by ALFA. Together with the code NEAT (Wesson et al. 2012), ...

  4. Robot Self-Location by Line Correspondences

    Institute of Scientific and Technical Information of China (English)

    胡占义; 雷成; 徐孔达

    2001-01-01

    This paper thoroughly investigates the problem of robot self-location by line correspondences. The original contributions are three-fold: (1) Obtain the necessary and sufficient condition to determine linearly the robot's pose by two line correspondences. (2) Show that if the space lines are vertical ones, it is impossible to determine linearly the robot's pose no matter how many line correspondences we have, and the minimum number of line correspondences is 3 to determine uniquely (but non-linearly) the robot's pose. (3) Show that if the space lines are horizontal ones, the minimum number of line correspondences is 3 for linear determination and 2 for non-linear determination of the robot's pose.

  5. Potential flow inside an evaporating cylindrical line.

    Science.gov (United States)

    Petsi, A J; Burganos, V N

    2005-10-01

    An analytical solution to the problem of potential flow inside an evaporating line is obtained. The line is shaped as a half-cylinder lying on a substrate, and evaporates with either pinned or depinned contact lines. The solution is provided through the technique of separation of variables in the velocity potential and stream function formulations. Based on the flow field calculations, it is estimated that the coffee-stain phenomenon should be expected even for uniform evaporation flux throughout the cylindrical surface, provided that the contact lines remain anchored. A simple expression for the velocity potential is also suggested, which reproduces the local velocity vector with excellent accuracy. The vertically averaged velocity is calculated also for other contact line values, revealing for any value an outward liquid flow for pinned lines as opposed to inward flow for depinned lines. PMID:16383581

  6. Deburring line automating system; Baritori line jidoka system

    Energy Technology Data Exchange (ETDEWEB)

    Hiraki, H.; Oda, T. [Meidensha Corp., Tokyo (Japan)

    1994-10-18

    Automation was carried out in deburring work using robots in casting and forging processes. With an aluminum cast deburring robot system, a worker sets workpieces on two conveyors alternately, and robot performs processing them sequentially, hence the waiting time for the robot is extremely short. Three kinds of tools are exchanged by an automatic tool changer depending on the condition of burr generation. The system functions also include automatic correction of grinding stones based on measurement of their wear amount, detection of cutting tool breakage, handling irregularly large burrs by means of a tool monitoring unit, and issuing an anomaly alarm upon a worker making a mistake in workpiece selection. The steel cast deburring robot system deals with burrs inside and outside a workpiece by using a process dividing system operated by two robots. The cylinder block deburring robot system works in a line processing system, identifying eight models by using a workpiece model determining machine, and the workpiece models can be changed by a positioning device eliminating the need of set-up works. 4 figs., 4 tabs.

  7. Relativistic redshifts in quasar broad lines

    CERN Document Server

    Tremaine, Scott; Liu, Xin; Loeb, Abraham

    2014-01-01

    The broad emission lines commonly seen in quasar spectra have velocity widths of a few per cent of the speed of light, so special- and general-relativistic effects have a significant influence on the line profile. We have determined the redshift of the broad H-beta line in the quasar rest frame (determined from the core component of the [OIII] line) for over 20,000 quasars from the Sloan Digital Sky Survey DR7 quasar catalog. The mean redshift as a function of line width is approximately consistent with the relativistic redshift that is expected if the line originates in a randomly oriented Keplerian disk that is obscured when the inclination of the disk to the line of sight exceeds ~30-45 degrees, consistent with simple AGN unification schemes. This result also implies that the net line-of-sight inflow/outflow velocities in the broad-line region are much less than the Keplerian velocity when averaged over a large sample of quasars with a given line width.

  8. Knowledge,attitude and diet-related behaviors of kaschin-beck disease(KBD) among the residents who live in Aba's KBD endemic areas%阿坝州大骨节病病区居民大骨节病知信行调查

    Institute of Scientific and Technical Information of China (English)

    胡晓琴; 向莹君; 李婷; 李娟; 侯丰苏; 刘之月; 曾子倩; 袁萍; 杨艳芳

    2011-01-01

    Objective To investigate the prevalence of knowledge, attitude, diet-related behavior of kashin-beck disease (KBD) among the residents who live in Aba' s KBD areas. Methods Totally 939 residents randomly selected from 13 villages of Aba' s KBD areas were interviewed with a self-designed questionnaire. Results Of the respondents, the total rate of KBD-related knowledge was 37. 8% and 600 people(63.9% ) got KBD knowledge from medical and health personnel. Totally 833 people(88. 7% ) concerned about KBD;874 people(93.1% ) were willing to eat rice;853 people(90. 8% ) were willing to intake Se-iodine salt;833 people(88.7% ) insisted on consuming rice and 561 people(59.7% ) insisted on intake of Se-iodized salt. Among the residents,the number of people consuming vegetables,meat,poultry,and fish were 892 (95.0% ) ,877 (93.4% ), 276 (29.4% ), and 65 (6.9% ), respectively, within the last week. Conclusion The status of KBD-related knowledge,intaking se-iodized salt and diet diversification among the residents in Aba' s KBD areas were not optimistic. Specific health education programs should be promoted among the residents.%目的 了解四川省阿坝州大骨节病病区居民对大骨节病的知信行情况.方法 采用自行设计的访谈式问卷,对阿坝州大骨节病病区13个村的939名常住居民进行入户调查.结果 调查对象的大骨节病相关知识总体正确率为37.8%,其中600人(63.9%)通过医疗卫生人员讲解获取相关知识;调查对象中833人(88.7%)关注大骨节病,874人(93.1%)愿意主食大米,853人(90.8%)愿意食用硒碘盐;833人(88.7%)坚持食用大米,561人(59.7%)坚持食用硒碘盐,最近l周食用蔬菜、猪牛羊肉、家禽及禽产品、鱼类的人数分别为892人(95.0%)、877人(93.4%)、276人(29.4%)、65人(6.9%).结论 阿坝州病区居民对大骨节病的认知、食用硒碘盐及饮食种类多样化的情况不容乐观,需有针对性地进行健康教育.

  9. Investigation on the selenium and T-2 toxin level in Kaschin-Beck disease relative active regions in Aba state of Sichuan province in 2008%2008年四川省阿坝州大骨节病相对活跃病区硒及T-2毒素水平调查

    Institute of Scientific and Technical Information of China (English)

    付莹; 孟凡刚; 邓佳云; 付晓艳; 黄慧; 李德安; 王丽华

    2010-01-01

    Objective To investigate the children's body environmental Se and T-2 toxin level in their staple food in Kaschin-Beck disease(KBD)relative active regions in Aba state of Sichuan province in 2008.Methods We took X-ray photograph of the right hand on children aged 7-13 years in 48 villages from 11 counties in Aba state.The relative active regions of KBD were chosen according to the X-ray result and historical status of KBD.The children's urine and hair,drinking water and their staple food werr sampled.Selenium contents in urine,hair,water and food samples were determined by naphthalene fluorescence,and T-2 toxin in staple food samples were detected by ELISA kits.Results In 2145 X-ray films,66 films were positive,and the children's KBD positive rate was 3.08%(66/2145).The KBD positive rate was respectively 10.98%(29/264)and 8.52%(19/223)in Maerkang county,Jinchuan county and it was 0.75%(3/400)in Rangtang county,historically serious endemic area.The selenium content in urine of children aged 7-13 years in Maerkang county,Jinchuan county and Rangtang county was (10.41±4.67), (10.11±3.65), (8.42±2.68)μg/g Cr, respectively, there was no statistical difference among three counties(F=0.901, P>0.05). The selenium content in hair of children aged 7-13 years in Maerkang county[(0.18±0.04)mg/kg] was lower than that in Jinchuan county[(0.21±0.04)mg/kg, P0.05).The T-2 toxin level in grain Maerkang county (10.72 ng/g) was higher than that in Jinchuan county and Rangtang county (3.74,3.30 ng/g, Z=-6.315,-4.407,all P0.05).马尔康县儿童发硒[(0.18±0.04)mg/kg]低于金川县[(0.21±0.04)mg/kg,P0.05):马尔康县粮食颗粒中T-2毒素水平(10.72 ng/g)高于金川县和壤塘县(3.74、3.30 ng/g,Z值分别为-6.315、-4.407,P均<0.017);粮食粉末中T-2毒素水平均高于粮食颗粒(Z值分别为-6.690、-5.493、-3.676.P均<0.05).结论 阿坝州3个大骨节病相对活跃病区7~13岁儿童内、外环境硒营养状态以及家庭主食粮T-2毒素水平与

  10. The Selenium Nutritional States of the Children in Kaschin-Beck Disease Area in Gangmuda Village,Rangtang County,Sichuan%四川省壤塘县大骨节病区儿童硒营养水平研究

    Institute of Scientific and Technical Information of China (English)

    徐小燕; 高琴; 陈艳秋; 杨修准; 王大成

    2012-01-01

    采样测定了四川省阿坝州壤塘县大骨节病病区小学生和家人头发及其主食青稞的硒含量.壤塘县岗木达小学学生发硒平均为0.238±0.085mg/kg(n=75),处于硒缺乏边缘.女生缺硒严重,发硒(0.198±0.063mg/kg,n=43)明显低于男生(0.293±0.081mg/kg,n=32,P〈0.01).岗木达乡妇女发硒(0.176±0.055mg/kg)明显低于其子女(0.277±0.068mg/kg,n=10,P〈0.01).岗木达小学生家里青稞硒含量很低(0.0139±0.0049mg/kg,n=30),为典型大骨节病区硒含量特征,是研究区儿童硒营养缺乏的主要原因,急需采取有效措施增加硒的摄入.%The selenium(Se) content in children and their family members' hair,and se in thein daily food highland barley from Kaschin-Beck Disease area in Gangmuda,Rangtang County in Sichuan Province of China were analyzed.The average Se content in children's hair showed a marginal Se deficiency(0.238±0.085 mg/kg,n=75).The Se content in girls' hair(0.198±0.063 mg/kg,n=43) was significantly lower than that in boys'(0.293±0.081 mg/kg,n=32,P0.01) and was absolutely in Se deficiency state.It was also found that the Se in women's hair(0.176±0.055 mg/kg) was lower than that of their children's(0.277±0.068 mg/kg,n=10,P0.01).The low Se content in the stable food highland barley(0.0139±0.0049 mg/kg,n=30) is the cause of the Se deficiency in the area.Effective measures to increase Se intake in the area are urgently needed.

  11. 大骨节病患者外周血真菌毒素环境反应基因表达谱的研究%Gene expression profile of mycotoxin-related environmental response genes in the peripheral blood in Kashin-Beck disease

    Institute of Scientific and Technical Information of China (English)

    张峰; 郭雄; 王爽; 武世勋; 王立新

    2012-01-01

    目的 比较分析真菌毒素环境反应基因在大骨节病(KBD)患者和正常对照者外周血中的表达谱差异,探讨其与KBD患病风险的相关性.方法 收集25例KBD成年患者和17例正常对照个体外周血样品,提取总RNA.采用Agilent全基因组表达芯片、单基因表达分析和基因集富集表达分析技术(GSEA),比较真菌毒素环境反应基因在KBD患者和正常对照个体外周血中的基因表达谱差异.基因表达芯片数据采用RT-PCR进行验证.结果 ①T-2毒素、雪腐镰刀菌烯醇、玉米赤霉烯酮、脱氧镰刀菌烯醇、黄曲霉毒素B1、赫曲霉毒素A和胶霉毒素相关的11个环境反应基因在KBD患者和正常对照个体外周血中的表达水平存在显著差异(表达率>2.O或<0.5),功能主要涉及细胞凋亡、免疫炎症和蛋白合成与修饰等.②真菌毒素相关的11个环境反应基因在KBD患者外周血中显著上调(P<0.05),功能涉及细胞凋亡、外环境刺激反应、生长发育和氧化还原反应等.结论 多种真菌毒素环境反应基因在KBD患者外周血中表达异常.真菌毒素可能通过影响相关环境反应基因的表达,诱发软骨细胞功能障碍,导致关节软骨损伤.%To compare the expression profile of mycotoxin-related environmental response genes (MERGs) in the peripheral blood of Kashin-Beck disease (KBD) patients and healthy controls so as to explore the relationship between MERGs and articular cartilage lesions in KBD. Methods Peripheral blood specimens were collected for total DNA from 17 normal human subjects and 25 adult KBD patients. Agilent whole genome microarray chip, single gene and gene set enrichment expression analyses were applied to compare the gene expression profile of MERGs between KBD and healthy controls. RT-PCR was performed to validate microarray data. Results ① Eleven MERGs related to T-2 toxin, nivalenol, deoxynivalenol, zearalenone, aflatoxin Bl, ochratoxin A and gliotoxin

  12. Dynamic-Model Assembly Line Scheduling

    Directory of Open Access Journals (Sweden)

    Aaima Najam

    2013-07-01

    Full Text Available The assembly line scheduling solution is restricted to two assembly lines that fulfill the requirement of small manufacturing industry by identifying the least cost path. Problem arises when large manufacturing industry comes under discussion where more than two assembly lines say three to fulfill the job, In this case two types of assembly line cost are involve: switching from one assembly line to another; switching from one station to the next. This study considers a solution for above mentioned scenario by least cost path identification, path cost calculation through back tracking, and a derived solution formula in order to reduce the computational complexity of scheduling at latter stages for n station. That provides the understanding for m number of assembly lines at the same time.

  13. Analysis of the solar magnesium lines

    Science.gov (United States)

    Heasley, J. N.; Allen, M. S.

    1980-01-01

    The observed quiet-sun profiles for a number of Mg I and II lines are compared with theoretical spectra computed for two upper-photosphere lower-chromosphere models published by Ayres and Linsky (1976). Both the Mg I and the Mg II resonance line wings, observed with the University of Hawaii Echelle Rocket Spectrographs, favor a model with a higher temperature in the upper photosphere than required to match the visible region lines 4571 and 5172. Neither model atmosphere reproduces the observed shapes in the cores of the strong lines or the limb darkening of the 4571 A intercombination line. The wings of the ultraviolet lines in plages can be reproduced either with a mean one-component atmosphere or by a two-component model with an ad hoc filling factor.

  14. Transmission of radioiodine through sampling lines

    International Nuclear Information System (INIS)

    An experimental program to measure radioiodine transmission through sampling lines is described. The transmission depends upon both deposition on and resuspension from the walls of the line. The deposition and resuspension processes are themselves controlled by the length, diameter, and material of the line and the conditions under which it is operated. The operating conditions under study are sampling flow rate, temperature and relative humidity. Measurement results have been interpreted in terms of a four-compartment model of radioiodine deposition and resuspension. The model is applied to each of twenty or more segments of the line. Experimental measurements of short-term transmission fractions and the deposition velocities derived from them are presented for six lines. Data on resuspension rates for the same lines were obtained and are also discussed

  15. Transmission of Electric Energy Along Long Lines

    Directory of Open Access Journals (Sweden)

    Berzan V.P.

    2009-08-01

    Full Text Available Transmission of electric energy along long lines is examined and characteristics of the change of capacities at the beginning and at the end of a line are submitted: factor of capacity, efficiency of a transmission line, currents depending on length, parameters of a line and parameters of loading. Influence of losses upon the dynamics of instant values of voltages and currents in the opened and short-circuited long lines is investigated and effects of nonlinearity in such chains are revealed at a power supply from a sinusoidal source of voltage. It is shown, that the method of complex amplitudes is not always applicable for the calculation of modes in long lines.

  16. Molecular Emission Line Formation in Prestellar Cores

    CERN Document Server

    Pavlyuchenkov, Ya; Shustov, B; Henning, T; Launhardt, R; Semenov, D

    2008-01-01

    We investigate general aspects of molecular line formation under conditions which are typical of prestellar cores. Focusing on simple linear molecules, we study formation of their rotational lines by radiative transfer simulations. We present a thermalization diagram to show the effects of collisions and radiation on the level excitation. We construct a detailed scheme (contribution chart) to illustrate the formation of emission line profiles. This chart can be used as an efficient tool to identify which parts of the cloud contribute to a specific line profile. We show how molecular line characteristics for uniform model clouds depend on hydrogen density, molecular column density, and kinetic temperature. The results are presented in a 2D plane to illustrate cooperative effects of the physical factors. We also use a core model with a non-uniform density distribution and chemical stratification to study the effects of cloud contraction and rotation on spectral line maps. We discuss the main issues that should ...

  17. Stellar model atmospheres with magnetic line blanketing

    CERN Document Server

    Kochukhov, O; Shulyak, D

    2004-01-01

    Model atmospheres of A and B stars are computed taking into account magnetic line blanketing. These calculations are based on the new stellar model atmosphere code LLModels which implements direct treatment of the opacities due to the bound-bound transitions and ensures an accurate and detailed description of the line absorption. The anomalous Zeeman effect was calculated for the field strengths between 1 and 40 kG and a field vector perpendicular to the line of sight. The model structure, high-resolution energy distribution, photometric colors, metallic line spectra and the hydrogen Balmer line profiles are computed for magnetic stars with different metallicities and are discussed with respect to those of non-magnetic reference models. The magnetically enhanced line blanketing changes the atmospheric structure and leads to a redistribution of energy in the stellar spectrum. The most noticeable feature in the optical region is the appearance of the 5200 A depression. However, this effect is prominent only in ...

  18. Product Line Pricing in a Supply Chain

    OpenAIRE

    Lingxiu Dong; Chakravarthi Narasimhan; Kaijie Zhu

    2009-01-01

    A vertically integrated channel would prefer to coordinate the pricing of its products. In this paper, we investigate drivers of product line pricing decisions in a bilateral monopoly where a manufacturer produces and sells two substitutable or complementary products to a retailer. In a two-stage game, each firm commits credibly in the first stage to a pricing scheme within its own organization: product line pricing (PLP) or nonproduct line pricing (NPLP). In the second stage, depending on th...

  19. Visual configuration in automotive software product lines

    OpenAIRE

    Botterweck, Goetz; Thiel, Steffen; Crawley, Ciar??n; Nestor, Daren; PreuBner, Andr??

    2008-01-01

    peer-reviewed Software Product Line engineering has emerged as a viable and important software development paradigm in the automotive industry. It allows companies to realise significant improvements in time-to-market, cost, productivity, and system quality. One major difficulty with software product line engineering is related to the fact that a product line of industrial size can easily incorporate thousands of variation points. This scale of variability can become extremely com...

  20. Human Cell Line and Tissue Sample Authentication

    OpenAIRE

    Ewing, Margaret M.; McLaren, Robert S.; Hebble, Kathryn D.; Ready, Kim; Storts, Douglas R.; Hooper, Kyle

    2013-01-01

    Background: Short Tandem Repeat (STR) genotyping analysis is a proven technology for uniquely identifying virtually all human samples. STR genotyping was adopted as the preferred technology for identification of human tissue culture cell lines by the ATCC Standards Development Organization (ASN-0002: Authentication of Human Cell Lines: Standardization of STR Profiling). We developed new automation-compatible protocols/systems for generating STR profiles from human cell lines or tissue samples...

  1. New Possibility of Lines Power Flow Control

    Directory of Open Access Journals (Sweden)

    Juraj Altus

    2005-01-01

    Full Text Available Present time is characteristic with increasing requests of consumers on the quality and quantity of delivered energy. In regard to financial and time difficulty of building up new power plants and distribution lines, producers and distributors must find out more a effective capacity utilization of the actual equipment. There is the place for installing thenew systems FACTS – unit for the control and regulation of power flows in energetic lines, and also to limit the reactive flow in lines.

  2. Universal statistics of vortex lines.

    Science.gov (United States)

    Nahum, Adam; Chalker, J T

    2012-03-01

    We study the vortex lines that are a feature of many random or disordered three-dimensional systems. These show universal statistical properties on long length scales, and geometrical phase transitions analogous to percolation transitions but in distinct universality classes. The field theories for these problems have not previously been identified, so that while many numerical studies have been performed, a framework for interpreting the results has been lacking. We provide such a framework with mappings to simple supersymmetric models. Our main focus is on vortices in short-range-correlated complex fields, which show a geometrical phase transition that we argue is described by the CP(k|k) model (essentially the CP(n-1) model in the replica limit n→1). This can be seen by mapping a lattice version of the problem to a lattice gauge theory. A related field theory with a noncompact gauge field, the 'NCCP(k|k) model', is a supersymmetric extension of the standard dual theory for the XY transition, and we show that XY duality gives another way to understand the appearance of field theories of this type. The supersymmetric descriptions yield results relevant, for example, to vortices in the XY model and in superfluids, to optical vortices, and to certain models of cosmic strings. A distinct but related field theory, the RP(2l|2l) model (or the RP(n-1) model in the limit n→1) describes the unoriented vortices that occur, for instance, in nematic liquid crystals. Finally, we show that in two dimensions, a lattice gauge theory analogous to that discussed in three dimensions gives a simple way to see the known relation between two-dimensional percolation and the CP(k|k) σ model with a θ term.

  3. Universal statistics of vortex lines.

    Science.gov (United States)

    Nahum, Adam; Chalker, J T

    2012-03-01

    We study the vortex lines that are a feature of many random or disordered three-dimensional systems. These show universal statistical properties on long length scales, and geometrical phase transitions analogous to percolation transitions but in distinct universality classes. The field theories for these problems have not previously been identified, so that while many numerical studies have been performed, a framework for interpreting the results has been lacking. We provide such a framework with mappings to simple supersymmetric models. Our main focus is on vortices in short-range-correlated complex fields, which show a geometrical phase transition that we argue is described by the CP(k|k) model (essentially the CP(n-1) model in the replica limit n→1). This can be seen by mapping a lattice version of the problem to a lattice gauge theory. A related field theory with a noncompact gauge field, the 'NCCP(k|k) model', is a supersymmetric extension of the standard dual theory for the XY transition, and we show that XY duality gives another way to understand the appearance of field theories of this type. The supersymmetric descriptions yield results relevant, for example, to vortices in the XY model and in superfluids, to optical vortices, and to certain models of cosmic strings. A distinct but related field theory, the RP(2l|2l) model (or the RP(n-1) model in the limit n→1) describes the unoriented vortices that occur, for instance, in nematic liquid crystals. Finally, we show that in two dimensions, a lattice gauge theory analogous to that discussed in three dimensions gives a simple way to see the known relation between two-dimensional percolation and the CP(k|k) σ model with a θ term. PMID:22587072

  4. Defining and Generating Axial Lines from Street Center Lines for better Understanding of Urban Morphologies

    CERN Document Server

    Liu, Xintao

    2010-01-01

    Axial lines are defined as the longest visibility lines for representing individual linear spaces in urban environments. The least number of axial lines that cover the free space of an urban environment constitute what is often called an axial map. This is a fundamental tool in space syntax, a theory developed by Bill Hillier and his colleagues for characterizing the underlying urban morphologies. For a long time, generating axial lines with help of some graphic software has been a tedious manual process that is criticized for being time consuming, subjective, or even arbitrary. In this paper, we redefine axial lines as the least number of individual straight line segments mutually intersected along natural streets that are generated from street center lines using the Gestalt principle of good continuity. Based on this new definition, we develop an automatic solution to generating the newly defined axial lines from street center lines. We apply this solution to six typical street networks (three from North Am...

  5. A Product Line Enhanced Unified Process

    DEFF Research Database (Denmark)

    Zhang, Weishan; Kunz, Thomas

    2006-01-01

    The Unified Process facilitates reuse for a single system, but falls short handling multiple similar products. In this paper we present an enhanced Unified Process, called UPEPL, integrating the product line technology in order to alleviate this problem. In UPEPL, the product line related...... activities are added and could be conducted side by side with other classical UP activities. In this way both the advantages of Unified Process and software product lines could co-exist in UPEPL. We show how to use UPEPL with an industrial mobile device product line in our case study....

  6. Molecular Characterization of Putative Chordoma Cell Lines

    Directory of Open Access Journals (Sweden)

    Silke Brüderlein

    2010-01-01

    Full Text Available Immortal tumor cell lines are an important model system for cancer research, however, misidentification and cross-contamination of cell lines are a common problem. Seven chordoma cell lines are reported in the literature, but none has been characterized in detail. We analyzed gene expression patterns and genomic copy number variations in five putative chordoma cell lines (U-CH1, CCL3, CCL4, GB60, and CM319. We also created a new chordoma cell line, U-CH2, and provided genotypes for cell lines for identity confirmation. Our analyses revealed that CCL3, CCL4, and GB60 are not chordoma cell lines, and that CM319 is a cancer cell line possibly derived from chordoma, but lacking expression of key chordoma biomarkers. U-CH1 and U-CH2 both have gene expression profiles, copy number aberrations, and morphology consistent with chordoma tumors. These cell lines also harbor genetic changes, such as loss of p16, MTAP, or PTEN, that make them potentially useful models for studying mechanisms of chordoma pathogenesis and for evaluating targeted therapies.

  7. Glovebox line for plutonium fuel analysis

    International Nuclear Information System (INIS)

    The design is described of a line for the analysis of plutonium and mixed (U, Pu) fuels. The design meets the requirement that the line should allow a continuous analysis of plutonium nuclear fuels using chemical methods oriented to oxidation-reduction titration techniques. This determined the nature of operations which should take place on the line. The specifications are given of the individual details as are parameters affecting the correct line operation in the analysis of plutonium fuels. (author) 7 figs., 2 refs

  8. Stability of the LHC transfer lines

    CERN Document Server

    Kain, V; Bartmann, W; Bracco, C; Goddard, B; Meddahi, M; Uythoven, J; Wenninger, J

    2011-01-01

    The LHC is filled from the SPS through two 3 km transfer lines. The injected beam parameters need to be well under control for luminosity performance, machine protection and operational efficiency. Small fractions of beam loss on the transfer line collimation system create showers which can trigger the sensitive LHC beam loss monitor system nearby and cause a beam abort during filling. The stability of the transfer line trajectory through the collimators is particularly critical in this respect. This paper will report on the transfer line trajectory stability during the proton run in 2011, correlations with injection losses, correction frequency and the most likely sources for the observed oscillations.

  9. Text line Segmentation of Curved Document Images

    Directory of Open Access Journals (Sweden)

    Anusree.M

    2014-05-01

    Full Text Available Document image analysis has been widely used in historical and heritage studies, education and digital library. Document image analytical techniques are mainly used for improving the human readability and the OCR quality of the document. During the digitization, camera captured images contain warped document due perspective and geometric distortions. The main difficulty is text line detection in the document. Many algorithms had been proposed to address the problem of printed document text line detection, but they failed to extract text lines in curved document. This paper describes a segmentation technique that detects the curled text line in camera captured document images.

  10. Overvoltage Suppression for UHV Transmission Lines

    Institute of Scientific and Technical Information of China (English)

    LI Yongli; LIU Taihua; LI Zhongqing; JING Lei; LONG Ying; FAN Jianzhong

    2008-01-01

    The overvoltage phenomena of ultra high voltage (UHV) transmission lines are analyzed and verified by EMTDC/PSCAD simulation. Referring to the theoretical analyses and operating experiences of extra high voltage (EHV) transmission lines in China and UHV transmission lines in Russia and Japan, the methods to suppress the internal overvoltage in UHV transmission lines by protection and control strategies are discussed. Through the cooperation among the recloser, shunt reactor, tripping and closing resistance, and metal oxide varistor (MOV), the overvoltage can be restrained within an acceptable level.

  11. Iron forbidden lines in tokamak discharges

    International Nuclear Information System (INIS)

    Several spectrum lines from forbidden transitions in the ground configurations of highly ionized atoms have been observed in the PLT tokamak discharges. Such lines allow localized observations, in the high-temperature regions of the plasma, of ion-temperatures, plasma motions, and spatial distributions of ions. Measured absolute intensities of the forbidden lines have been compared with simultaneous observations of the ion resonance lines and with model calculations in order to deduce the mechanism of level populaions by means of electron collisions and radiative transitions

  12. Red Sesbania Distribution - lines [ds81

    Data.gov (United States)

    California Department of Resources — This layer conatains line data for the red sesbania (Sesbania punicea) database. The database represents historic and current observations by various individuals of...

  13. A Line Extraction Algorithm for Hand Drawings

    Institute of Scientific and Technical Information of China (English)

    赵明

    1995-01-01

    This paper presents an algorithm for extracting lines from hand drawings.It starts from contour pixel tracing,fits them into contour segments,and then extracts skeleton lines from the contour segments.The algorithm finds all contours in one scan of the input matrix without detecting and marking multiple pixels.In line extraction,the method Elastic Contour Segment Tracing is proposed which extracts lines by referring to the contour segments at both sides,overcoming noise and passing through blotted areas by fitting and extrapolation. Experiments on free hand mechanical drawings,sketches,letter/numerals,as well as Chinese characters are carried out and satisfactory results are achieved.

  14. Transmission Line Security Monitor: Final Report

    Energy Technology Data Exchange (ETDEWEB)

    John Svoboda

    2011-04-01

    The Electric Power Transmission Line Security Monitor System Operational Test is a project funded by the Technical Support Working Group (TSWG). TSWG operates under the Combating Terrorism Technical Support Office that functions under the Department of Defense. The Transmission Line Security Monitor System is based on technology developed by Idaho National Laboratory. The technology provides a means for real-time monitoring of physical threats and/or damage to electrical transmission line towers and conductors as well as providing operational parameters to transmission line operators to optimize transmission line operation. The end use is for monitoring long stretches of transmission lines that deliver electrical power from remote generating stations to cities and industry. These transmission lines are generally located in remote transmission line corridors where security infrastructure may not exist. Security and operational sensors in the sensor platform on the conductors take power from the transmission line and relay security and operational information to operations personnel hundreds of miles away without relying on existing infrastructure. Initiated on May 25, 2007, this project resulted in pre-production units tested in realistic operational environments during 2010. A technology licensee, Lindsey Manufacturing of Azusa California, is assisting in design, testing, and ultimately production. The platform was originally designed for a security monitoring mission, but it has been enhanced to include important operational features desired by electrical utilities.

  15. The Narrow Line Region of Ark 564

    CERN Document Server

    Contini, M; Viegas, S M M; Contini, Marcella; Rodriguez-Ardila, Alberto; Viegas, Sueli

    2003-01-01

    The continuum and emission-line spectrum of the narrow-line Seyfert 1 galaxy Ark 564 is used to investigate, for the first time, the physical conditions and structure of its narrow line region (NLR). For this purpose, composite models, accounting for the coupled effect of photoionization and shocks, are employed. The emission-line spectrum of Ark 564, which ranges from the ultraviolet to the near-infrared, shows a rich forbidden line spectrum. Strong emphasis is given to the study of the coronal line region. The diversity of physical conditions deduced from the observations requires multi-cloud models to reproduce the observed lines and continuum. We find that a combination of high velocity (Vs = 1500 km/s) shock-dominated clouds as well as low velocity (Vs = 150 km/s) radiation-dominated clouds explains the coronal lines, while the optical low-ionization lines are mainly explained by shock-dominated clouds. The results for Ark 564 are compared with those obtained for other Seyfert galaxies previously analyze...

  16. Windows Command Line Administration Instant Reference

    CERN Document Server

    Mueller, John Paul

    2010-01-01

    The perfect companion to any book on Windows Server 2008 or Windows 7, and the quickest way to access critical information. Focusing just on the essentials of command-line interface (CLI), Windows Command-Line Administration Instant Reference easily shows how to quickly perform day-to-day tasks of Windows administration without ever touching the graphical user interface (GUI). Specifically designed for busy administrators, Windows Command-Line Administration Instant Reference replaces many tedious GUI steps with just one command at the command-line, while concise, easy to access answers provid

  17. Tubular lining material for pipelines having bends

    Energy Technology Data Exchange (ETDEWEB)

    Moringa, A.; Sakaguchi, Y.; Hyodo, M.; Yagi, I.

    1987-03-24

    A tubular lining material for pipelines having bends or curved portions comprises a tubular textile jacket made of warps and wefts woven in a tubular form overlaid with a coating of a flexible synthetic resin. It is applicable onto the inner surface of a pipeline having bends or curved portions in such manner that the tubular lining material with a binder onto the inner surface thereof is inserted into the pipeline and allowed to advance within the pipeline, with or without the aid of a leading rope-like elongated element, while turning the tubular lining material inside out under fluid pressure. In this manner the tubular lining material is applied onto the inner surface of the pipeline with the binder being interposed between the pipeline and the tubular lining material. The lining material is characterized in that a part of all of the warps are comprised of an elastic yarn around which, over the full length thereof, a synthetic fiber yarn or yarns have been left-and/or right-handedly coiled. This tubular lining material is particularly suitable for lining a pipeline having an inner diameter of 25-200 mm and a plurality of bends, such as gas service pipelines or house pipelines, without occurrence of wrinkles in the lining material in a bend.

  18. Vortex-based line beam optical tweezers

    Science.gov (United States)

    Cheng, Shubo; Tao, Shaohua

    2016-10-01

    A vortex-based line beam, which has a straight-line shape of intensity and possesses phase gradient along the line trajectory is developed and applied for optical manipulation in this paper. The intensity and phase distributions of the beam in the imaging plane of the Fourier transform are analytically studied. Simulation results show that the length of the line and phase gradient possessed by a vortex-based line beam are dependent on the topological charge and the azimuthal proportional constant. A superposition of multiple phase-only holograms with elliptical azimuthal phases can be used to generate an array of vortex-based line beams. Optical trapping with the vortex-based line beams has been implemented. Furthermore, the automatic transportation of microparticles along the line trajectory perpendicular to the optical axis is realized with an array of the beams. The generation method for the vortex-based line beam is simple. The beam would have potential applications in fields such as optical trapping, laser machining, and so on.

  19. The Spatial Characteristics of a Line and Their Application to Line Simplification

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    This paper discusses the spatial knowledge related to a line ,and the characteristic points of lines is detected.According to the requirements of line generalization,new algorithms for identifying characteristic line points are presented.These characteristic points are used to improve the algorithms of line generalization.An algorithm for identifying bends is shown.In this paper,improved algorithms based on those by Douglas-Peucker,Visvalingam and Whyatt are shown.In this test,the progressive process of line generalization is emphasized.

  20. HLA expression in hepatocellular carcinoma cell lines.

    Science.gov (United States)

    Wadee, A A; Paterson, A; Coplan, K A; Reddy, S G

    1994-08-01

    The present study undertook to investigate the biological significance of human leucocyte antigen expression in hepatocellular carcinoma and to elucidate the role of potential modulating agents on human leucocyte antigen expression. These studies used several hepatic tumour-derived cell lines as in vitro model systems. The cell lines included PLC/PRF/5 (Alexander cell line), Hep3B, HepG2, TONG PHC, HA22T/VGH, HA59T/VGH and Mahlavu. The cell lines K562 and Raji were used as negative and positive controls, respectively. K562, a B lymphoid-derived cell line, was shown to express negligible amounts of human leucocyte antigens, while Raji, an erythromyeloid-derived cell line, expressed both class I and class II human leucocyte antigens as well as their respective invariant chains, beta 2-microglobulin and Ii. Using an ELISA, experiments performed on these cell lines confirmed the natural expression of class I and class II antigens by the HA22T/VGH and HA59T/VGH cell lines, whereas PLC/PRF/5 displayed class II surface antigens only. The effects of modulating agents such as interferon-gamma sodium butyrate and clofazimine on human leucocyte antigen expression were investigated using the HA22T/VGH, HA59T/VGH and TONG PHC cell lines. These agents increased class II and class II human leucocyte antigen expression on HA22T/VGH and TONG PHC cells, but had no effect on the HA59T/VGH cell line. The results suggest a potential use for these agents as modulators of human leucocyte antigen expression by human heptocellular cell lines.

  1. Near-Infrared Coronal Lines in Narrow-Line Seyfert 1 Galaxies

    CERN Document Server

    Rodríguez-Ardila, A; Pastoriza, M G; Prato, L; Rodriguez-Ardila, Alberto; Viegas, Sueli M.; Pastoriza, Miriani G.; Prato, Lisa

    2002-01-01

    We report spectroscopic observations in the wavelength region 0.8-2.4 microns aimed at detecting near-infrared coronal lines in a sample of 5 narrow-line and 1 broad-line Seyfert 1 galaxies. Our measurements show that [SiVI] 1.963mu, [SIX] 1.252mu and [SVIII] 0.991mu are present in most of the objects and are useful tracers of nuclear activity. Line ratios between coronal and low ionization forbidden lines are larger in narrow-line Seyfert 1 galaxies. A positive correlation between FHWM and ionization potential of the forbidden lines is observed. Some coronal lines have widths similar to that of lines emitted in the broad line region (BLR), indicating that part of their flux originates in gas close to the outer portions of the BLR. Most coronal lines are blueshifted relative to the systemic velocity of the galaxy and this shift increases with the increase in line width. Assymetries towards the blue are observed in the profiles of high-ionization Fe lines, suggesting that the emitting gas is related to winds o...

  2. SS 433: Stationary lines and primary eclipses

    CERN Document Server

    Bowler, M G

    2015-01-01

    Some stationary lines in the emission spectra of SS 433 are eclipsed, but most are not. Lines attributed to a circumbinary disk are not eclipsed, but double in relative intensity during primary eclipse. A C II doublet is eclipsed and Doppler shifts over two periods yield an orbital speed of 176 +/- 13 km/s.

  3. Composite Based EHV AC Overhead Transmission Lines

    DEFF Research Database (Denmark)

    Sørensen, Thomas Kjærsgaard

    and analysed with regard to the possibilities, limitations and risks widespread application of composite materials on EHV AC overhead transmission lines may present. To form the basis for evaluation of the useability of composite materials, dierent overhead line projects aimed at reducing the environmental...

  4. Colored neon flanks and line gap enhancement.

    Science.gov (United States)

    Redies, C; Spillmann, L; Kunz, K

    1984-01-01

    When a colored line connects two black (or differently colored) lines across a gap, colored neon flanks are seen on either side of it. These flanks extend over gap sizes of 50 min arc foveally and are not explained by Bezold-type assimilation. They may be elicited by black lines as short as 6 min arc adjoining the colored line at each end. To maximize these flanks, the black and colored lines must appear linearly continuous. Nonaligned junctions weaken the effect and an angular tilt of more than 40 dog destroys it. In this and other respects, (local) neon flanks are similar to van Tuijl's (global) neon color spreading (1975). Both phenomena have analogs in brightness perception. We propose that neon spreading is a lateral extension of neon flanks across the empty space between them, and discuss similarities of these effects with other brightness illusions (Schumann, Prandtl, Ehrenstein). For this group of illusions the term "line gap enhancement" is introduced to imply perceptual enhancement of changes in brightness and/or color along lines. Correspondences between the psychophysical properties and structural prerequisites for line gap enhancement on one hand and neuronal response properties of end-zone inhibited (hypercomplex) cortical cells on the other are discussed.

  5. Identifying Fractions on a Number Line

    Science.gov (United States)

    Wong, Monica

    2013-01-01

    Fractions are generally introduced to students using the part--whole model. Yet the number line is another important representation which can be used to build fraction concepts (Australian Curriculum Assessment and Reporting Authority [ACARA], 2012). Number lines are recognised as key in students' number development not only of fractions, but…

  6. Barley mutant line with high protein yield

    International Nuclear Information System (INIS)

    Mutation breeding was initiated in 1969 at the Agricultural Research Institute, Nicosia, aiming at developing high yielding barley lines having also high protein or lysine content. The final results were reported at the FAO/IAEA Research Co-ordination Meeting at Nicosia in 1980. At that time some lines were superior to their mother line in grain yield, protein content or protein yield. However, high yield is essential for feed-barley as there is no premium price for protein content or quality. In the experiments reported earlier, the mean grain yield of mutant M-Att-73-337-1 was 3202 kg/ha, 9.9% higher than the mother variety 'Attiki'. The Kjeldahl protein content was 12.7% for the mutant line and 13.4% for the mother variety. The mutant line was further evaluated in field trials (11 m2 plots and 6 replications) during 1983-88, along with other promising material from the breeding programme. The mutant line outyielded its mother variety by 9.7% in grain yield and 16% in straw yield. These increases are apparently the result of increased 1000-grain weight and a higher number of culms per m2. Protein content of the mutant line was slightly lower, but its protein yield was 5.5% higher. The yield of the mutant line over 16 trials during 1983-88 was also 4% higher than the yield of the main commercially grown variety Athenais

  7. Hot Gas Lines in T Tauri Stars

    CERN Document Server

    Ardila, David R; Gregory, Scott G; Ingleby, Laura; France, Kevin; Brown, Alexander; Edwards, Suzan; Johns-Krull, Christopher; Linsky, Jeffrey L; Yang, Hao; Valenti, Jeff A; Abgrall, Hervé; Alexander, Richard D; Bergin, Edwin; Bethell, Thomas; Brown, Joanna M; Calvet, Nuria; Espaillat, Catherine; Hillenbrand, Lynne A; Hussain, Gaitee; Roueff, Evelyne; Schindhelm, Eric R; Walter, Frederick M

    2013-01-01

    For Classical T Tauri Stars (CTTSs), the resonance lines of N V, Si IV, and C IV, as well as the He II 1640 A line, act as diagnostics of the accretion process. Here we assemble a large high-resolution dataset of these lines in CTTSs and Weak T Tauri Stars (WTTSs). We present data for 35 stars: one Herbig Ae star, 28 CTTSs, and 6 WTTSs. We decompose the C IV and He II lines into broad and narrow Gaussian components (BC & NC). The most common (50 %) C IV line morphology in CTTSs is that of a low-velocity NC together with a redshifted BC. The velocity centroids of the BCs and NCs are such that V_BC > 4 * V_NC, consistent with the predictions of the accretion shock model, in at most 12 out of 22 CTTSs. We do not find evidence of the post-shock becoming buried in the stellar photosphere due to the pressure of the accretion flow. The He II CTTSs lines are generally symmetric and narrow, less redshifted than the CTTSs C IV lines, by ~10 km/sec. The flux in the BC of the He II line is small compared to that of t...

  8. Low-energy beam line at KVI

    NARCIS (Netherlands)

    Toprek, D.; Formanoy, I.; Brandenburg, S.

    2006-01-01

    This paper describes the redesign of the low-energy beam line at KVI. Redesigned and properties of the optical elements of the transport beam line is done by using the code COSY INFINITY in the third-order of approximation. The effects of fringe fields of the optical elements are also taken into acc

  9. Li-Ning Rebounding With Shaq?

    Institute of Scientific and Technical Information of China (English)

    MATT; YOUNG

    2006-01-01

    The Yao of the West markets shoes with a Chinese company China is under Shaq Attack, and that's all right with Li-Ning. Last week, basketball giant Shaquille O'Neal hovered over a club-style hotel press conference to announce a partnership with Li-Ning Co. Ltd.,

  10. UV Emission line shifts of symbiotic binaries

    CERN Document Server

    Friedjung, M; Zajczyk, A; Eriksson, M

    2010-01-01

    Relative and absolute emission line shifts have been previously found for symbiotic binaries, but their cause was not clear. This work aims to better understand the emission line shifts. Positions of strong emission lines were measured on archival UV spectra of Z And, AG Dra, RW Hya, SY Mus and AX Per and relative shifts between the lines of different ions compared. Profiles of lines of RW Hya and Z And were also examined. The reality of the relative shift between resonance and intercombination lines of several times ionised atoms was clearly shown except for AG Dra. This redshift shows a well defined variation with orbital phase for Z And and RW Hya. In addition the intercombination lines from more ionised atoms and especially OIV are redshifted with respect to those from less ionised atoms. Other effects are seen in the profiles. The resonance-intercombination line shift variation can be explained in quiescence by P Cygni shorter wavelength component absorption, due to the wind of the cool component, which ...

  11. Line geometry and electromagnetism I: basic structures

    OpenAIRE

    Delphenich, D. H.

    2013-01-01

    Some key notions of line geometry are recalled, along with their application to mechanics. It is then shown that most of the basic structures that one introduces in the pre-metric formulation of electromagnetism can be interpreted directly in terms of corresponding concepts in line geometry. The results are summarized in a table.

  12. Transmission Lines in CMOS: An Explorative Study

    NARCIS (Netherlands)

    Klumperink, E.A.M.; Kreienkamp, R.; Ellermeyer, T.; Langmann, U.

    2001-01-01

    On-chip transmission line modelling and design become increasingly important as frequencies are continuously going up. This paper explores possibilities to implement transmission lines on CMOS ICs via coupled coplanar strips. EM-field simulations with SONNET are used to estimate important transmissi

  13. Power flow studies of magnetically insulated lines

    International Nuclear Information System (INIS)

    The designs for relativistic electron beam accelerators with power levels of 20 to 100 TW are greatly restricted by the inductance of a single diode of reasonable size. This fact leads to modular designs of very large accelerators. One concept uses several small insulators at a large radius arranged around the accelerator center. The total effective inductance is then low, but the energy must then be transported by self-magnetic insulated vacuum lines to the target volume. A triplate vacuum line configuration eases many mechanical support problems and allows more A-K gaps or feeds to be packaged around a given radius. This type of vacuum transmission line was chosen for initial experiments at Sandia. The experiments were conducted on the MITE (Magnetically Insulated Transmission Experiment) accelerator. The water pulse forming lines are connected to a vacuum triplate line through a conventional stacked insulator. Diagnostics on the experiment consisted of: (1) input V; (2) input I; (3) I monitors at the input, middle, and output of both the center conductor and ground plane of the transmission line; (4) magnetic energy analyzer to view peak electron energy in the A-K gap; (5) calorimetry; and (6) Faraday cups to look at electron current flowing across the transmission line. The main goal of the experiment is to obtain input impedance of the transmission line as a function of voltage and to measure electron loss currents. These measurements are compared to theoretical models for the input impedance and energy losses

  14. Computer Simulation of Electric Field Lines.

    Science.gov (United States)

    Kirkup, L.

    1985-01-01

    Describes a computer program which plots electric field line plots. Includes program listing, sample diagrams produced on a BBC model B microcomputer (which could be produced on other microcomputers by modifying the program), and a discussion of the properties of field lines. (JN)

  15. Mechanism of formation of curved Kikuchi lines

    Science.gov (United States)

    Karakhanyan, R. K.; Karakhanyan, K. R.

    2008-07-01

    The mechanism of formation of curved Kikuchi lines, observed at displacement of point reflections from their normal positions, is proposed. Curving of Kikuchi lines is explained taking into account the participation of diffracted electron beams in the formation of Kikuchi electron diffraction patterns.

  16. Nonidentified Kikuchi lines with reverse contrast

    Science.gov (United States)

    Karakhanyan, K. R.

    2009-03-01

    Electron diffraction patterns of silicon in transmission with contrast reversal from bright to dark for an unidentified Kikuchi line along its length have been obtained. The contrast reversal of an unidentified line is explained within the elementary mechanism of Kikuchi pattern formation taking into account the Kikuchi electron double diffraction.

  17. Line-mode browser development days

    CERN Multimedia

    Anna Pantelia

    2013-01-01

    Twelve talented web developers have travelled to CERN from all over the world to recreate a piece of web history: the line-mode browser. See the line-mode browser simulator that they created here. Read more about the birth of the web here.

  18. Performance of the first ANTARES detector line

    NARCIS (Netherlands)

    Ageron, M.; Aguilar, J. A.; Albert, A.; Ameli, F.; Anghinolfi, M.; Anton, G.; Anvar, S.; Ardid, M.; Aubert, J. -J.; Aublin, J.; Auer, R.; Basa, S.; Bazzotti, M.; Becherini, Y.; Bertin, V.; Biagi, S.; Bigi, A.; Bigongiari, C.; Bou-Cabo, M.; Bruijn, R.; Brunner, J.; Burgio, G. F.; Busto, J.; Camarena, F.; Capone, A.; Carminati, G.; Carr, J.; Castel, D.; Castorina, E.; Cavasinni, V.; Cecchini, S.; Charvis, Ph.; Chiarusi, T.; Circella, M.; Colnard, C.; Coniglione, R.; Costantini, H.; Cottini, N.; Coyle, P.; De Bonis, G.; Decowski, P.; Dekeyser, I.; Deschamps, A.; Donzaud, C.; Dornic, D.; Drouhin, D.; Druillole, F.; Eberl, T.; Ernenwein, J. -P.; Escoffier, S.; Falchini, E.; Fehr, F.; Flaminio, V.; Fratini, K.; Fuda, J. -L.; Giacomelli, G.; Graf, K.; Guillard, G.; Hallewell, G.; Hello, Y.; Hernandez-Rey, J. J.; Hossl, J.; de Jong, M.; Kalantar-Nayestanaki, N.; Kalekin, O.; Kappes, A.; Katz, U.; Kooijman, P.; Kopper, C.; Kouchner, A.; Kretschmer, W.; Kuch, S.; Lahmann, R.; Lamare, P.; Lambard, G.; Laschinsky, H.; Lavalle, J.; Le Provost, H.; Lefevre, D.; Lelaizant, G.; Lim, G.; Lo Presti, D.; Loehner, H.; Loucatos, S.; Louis, F.; Lucarelli, F.; Lyons, K.; Mangano, S.; Marcelin, M.; Margiotta, A.; Martinez-Mora, J. A.; Maurin, G.; Mazure, A.; Melissas, M.; Migneco, E.; Montaruli, T.; Morganti, M.; Moscoso, L.; Motz, H.; Naumann, C.; Ostasch, R.; Pavalas, G. E.; Payre, P.; Petrovic, J.; Petta, C.; Piattelli, P.; Picq, C.; Pillet, R.; Popa, V.; Pradier, T.; Presani, E.; Racca, C.; Radu, A.; Reed, C.; Richardt, C.; Rujoiu, M.; Ruppi, M.; Russo, G. V.; Salesa, F.; Sapienza, P.; Schoeck, F.; Schuller, J. -P.; Shanidze, R.; Simeone, F.; Spurio, M.; van der Steenhoven, G.; Tamburini, C.; Tasca, L.; Toscano, S.; Vecchi, M.; Vernin, P.; Wijnker, G.; de Wolf, E.; Zaborov, D.; Zornoza, J. D.; Zuniga, J.

    2009-01-01

    In this paper we report on the data recorded with the first Antares detector line. The line was deployed on the 14th of February 2006 and was connected to the readout 2 weeks later. Environmental data for one and a half years of running are shown. Measurements of atmospheric muons from data taken fr

  19. "And first he drew a line"

    DEFF Research Database (Denmark)

    Graham, Brian Russell

    At the end of “Night the Seventh” of Blake’s The Four Zoas, Blake’s Los, against a background of “furious war”, takes a stance and then performs an act which might seem powerless and quaint against such a backdrop: he draws a line, beginning work consisting of lines which Enitharmon, his companio...

  20. LOFAR Cassiopeia A spectral line survey

    CERN Document Server

    Oonk, J B R; Salas, P; Salgado, F; Morabito, L K; Toribio, M C; Tielens, A G G M; Rottgering, H J A

    2016-01-01

    We use the Low Frequency Array to perform a systematic high spectral resolution investigation of the low-frequency 33-78 MHz spectrum along the line of sight to Cassiopeia A. We complement this with a 304-386 MHz Westerbork Synthesis Radio telescope observation. In this first paper we focus on the carbon radio recombination lines. We detect Cn$\\alpha$ lines at -47 and -38 km s$^{-1}$ in absorption for quantum numbers n=438-584 and in emission for n=257-278 with high signal to noise. These lines are associated with cold clouds in the Perseus spiral arm component. Hn$\\alpha$ lines are detected in emission for n=257-278. In addition, we also detect Cn$\\alpha$ lines at 0 km s$^{-1}$ associated with the Orion arm. We analyze the optical depth of these transitions and their line width. Our models show that the carbon line components in the Perseus arm are best fit with an electron temperature 85 K and an electron density 0.04 cm$^{-3}$ and can be constrained to within 15\\%. The electron pressure is constrained to w...

  1. Time Line Visualization of Research Fronts.

    Science.gov (United States)

    Morris, Steven A.; Yen, G.; Wu, Zheng; Asnake, Benyam

    2003-01-01

    Research fronts, defined as clusters of documents that tend to cite a fixed, time invariant set of base documents, are plotted as time lines for visualization and exploration. Illustrates the construction, exploration, and interpretation of time lines for identifying and visualizing temporal changes in research activity through journal articles.…

  2. On line routing per mobile phone

    DEFF Research Database (Denmark)

    Bieding, Thomas; Görtz, Simon; Klose, Andreas

    2009-01-01

    On-line routing is concerned with building vehicle routes in an ongoing fashion in such a way that customer requests arriving dynamically in time are efficiently and effectively served. An indispensable prerequisite for applying on-line routing methods is mobile communication technology. Addition...

  3. Liquid carbon: structure near the freezing line

    NARCIS (Netherlands)

    Ghiringhelli, L.M.; Los, J.H.; Meijer, E.J.; Fasolino, A.; Frenkel, D.

    2005-01-01

    We present a detailed analysis of the structure of liquid carbon near the freezing line. The results are obtained by molecular simulation using a recently developed state-of-the-art bond order potential. We find that along the melting line the liquid is predominantly threefold coordinated up to pres

  4. Sewerage Collection Lines, Sewer Lines, Published in unknown, North Georgia College and State University.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Sewerage Collection Lines dataset, was produced all or in part from Field Survey/GPS information as of unknown. It is described as 'Sewer Lines'. Data by this...

  5. Line-of-sight statistical methods for turbulent medium: VCS for emission and absorption lines

    CERN Document Server

    Pogosyan, D

    2009-01-01

    We present an overview of the Velocity Coordinate Spectrum (VCS), a new technique for studying astrophysical turbulence that utilizes the line-of-sight statistics of Doppler-broadened spectral lines. We consider the retrieval of turbulence spectra from emission intensity observations of both high and low spatial resolution and find that the VCS allows one to study turbulence even when the emitting turbulent volume is not spatially resolved. This opens interesting prospects for using the technique for extragalactic research. VCS developed for spectral emission lines is applicable to absorption lines as well if the optical depth is used instead of intensity. VCS for absorption lines in point-source spectra benefit from effectively narrow beam and does not require dense sky coverage by sampling directions. Even strongly saturated absorption lines still carry the information about the small scale turbulence, albeit limited to the wings of a line. Combining different absorption lines one can develop tomography of ...

  6. Antarctic Flight Line Maps = Map-Line Indexes of Antarctica Aerial Photos: Pre 1950

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The Antarctic Fight Line Maps collection is comprised of 1:250,000 scale topographic maps over Antarctica with original hand-drawn flight lines for aerial...

  7. Transmission Lines or Poles, Electric - VOLUSIA COUNTY MAJOR POWER LINES (Arcs)

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — Volusia County Power Line data was aggregated by using parcel data and visual inspection of 2005 aerial photography to determine centerline of Power Lines Right of...

  8. Transmission Lines or Poles, Electric, electric transmission line, Published in unknown, Kleinschmidt.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Transmission Lines or Poles, Electric dataset as of unknown. It is described as 'electric transmission line'. Data by this publisher are often provided in UTM...

  9. Transmission Lines or Poles, Electric, IPPCalifLine, Published in 2008, Millard County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Transmission Lines or Poles, Electric dataset, was produced all or in part from Other information as of 2008. It is described as 'IPPCalifLine'. Data by this...

  10. Transmission Lines or Poles, Electric, IPPMonaLine, Published in 2007, Millard County.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Transmission Lines or Poles, Electric dataset, was produced all or in part from Other information as of 2007. It is described as 'IPPMonaLine'. Data by this...

  11. Dust Sensitivity of Absorption-Line Indices

    CERN Document Server

    MacArthur, L A

    2004-01-01

    We investigate the effects of dust extinction on integrated absorption-line indices that are widely used to derive constraints on the ages and metallicities of composite stellar systems. Typically, absorption-line studies have been performed on globular clusters or elliptical galaxies, which are mostly dust-free systems. However, many recent studies of integrated stellar populations have focused on spiral galaxies which may contain significant amounts of dust. It is almost universally assumed that the effects of dust extinction on absorption-line measurements are entirely negligible given the narrow baseline of the spectral features, but no rigorous study has yet been performed to verify this conjecture. In this analysis, we explore the sensitivity of the standard set of Lick absorption-line indices, the higher-order Balmer line indices, the 4000 A break, the near-IR calcium triplet indices, and the Rose indices to dust absorption according to population synthesis models that incorporate a multi-component mod...

  12. Broad iron lines in Active Galactic Nuclei

    CERN Document Server

    Fabian, A C; Reynolds, C S; Young, A J

    2000-01-01

    An intrinsically narrow line emitted by an accretion disk around a black hole appears broadened and skewed as a result of the Doppler effect and gravitational redshift. The fluorescent iron line in the X-ray band at 6.4-6.9keV is the strongest such line and is seen in the X-ray spectrum of many active galactic nuclei and, in particular, Seyfert galaxies. It is an important diagnostic with which to study the geometry and other properties of the accretion flow very close to the central black hole. The broad iron line indicates the presence of a standard thin accretion disk in those objects, often seen at low inclination. The broad iron line has opened up strong gravitational effects around black holes to observational study with wide-reaching consequences for both astrophysics and physics.

  13. Plugging pig reduces line maintenance, repair costs

    Energy Technology Data Exchange (ETDEWEB)

    1976-05-01

    A relatively new technique involving the use of plugging pigs to seal-off thruput on liquids lines was used by Ashland Pipe Line Co. during consecutive maintenance and repair projects on a crude trunkline in Illinois. Following completion, cost of the two operations was estimated at about two-thirds of that for similar projects using conventional line-plugging equipment. The pigs are produced by International Pipeline Equipment Co. (IPE) and are inserted into the line from the standard cleaning and batching, pig-launching equipment installed on the system. Ashland used one of the special pigs during reconditioning of a gate valve at its Patoka terminal and then pumped it downstream to seal the line at the site of a damage repair project. The service is provided by Advance Valve Installations, Inc.

  14. Line radiative transfer and statistical equilibrium*

    Directory of Open Access Journals (Sweden)

    Kamp Inga

    2015-01-01

    Full Text Available Atomic and molecular line emission from protoplanetary disks contains key information of their detailed physical and chemical structures. To unravel those structures, we need to understand line radiative transfer in dusty media and the statistical equilibrium, especially of molecules. I describe here the basic principles of statistical equilibrium and illustrate them through the two-level atom. In a second part, the fundamentals of line radiative transfer are introduced along with the various broadening mechanisms. I explain general solution methods with their drawbacks and also specific difficulties encountered in solving the line radiative transfer equation in disks (e.g. velocity gradients. I am closing with a few special cases of line emission from disks: Radiative pumping, masers and resonance scattering.

  15. The line emissions and polarization in blazars

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    The correlations between broad-line emission,polarization,and core-dominance parameters are investigated for a sample of 148 blazars(BL Lacertae objects-BLs and flat spectrum radio quasars-FSRQs). An anti-correlation between the broad-line luminosity and the linear polarization is found. The broad-line and polarization relation can be explained by using a relativistic beaming model,which perhaps suggests that BL Lacs and FSRQs are a single class. We also investigated the relation between the ratio of the broad-line luminosity to the Eddington luminosity and linear polarization,and that between the ratio of the broad-line luminosity to the Eddington luminosity and the core-dominance parameter.

  16. Magnetic neutral lines in Jupiter's nightside magnetosphere

    International Nuclear Information System (INIS)

    A self-consistent axisymmetric model of Jupiter's nigtside magnetospher is presented. The plasma velocity is assumed to be purely poloidal. Data from the Voyages missions are used as input for the solution of the equation determining the magnesti structure. We show that magnetic neutral lines, i.e. X and O lines, occur with suficiently large current discs. The X line is located betwen 37 an 45 Jovian radii, while the position of the O line is less well-determined. Beyond the X line an ordered radial motion develops. This may be indentified either with the magnetospheric wind or with the formation of plasmoids in the Jovian magnetosphere. (author). 1 refs.; 3 figs.; 1 tab

  17. Decoding quasars: gravitationally redshifted spectral lines !

    CERN Document Server

    Kantharia, Nimisha G

    2016-01-01

    Further investigation of data on quasars, especially in the ultraviolet band, yields an amazingly coherent narrative which we present in this paper. Quasars are characterised by strong continuum emission and redshifted emission and absorption lines which includes the famous Lyman $\\alpha$ forest. We present irrefutable evidence in support of (1) the entire line spectrum arising in matter located inside the quasar system, (2) the range of redshifts shown by the lines being due to the variable contribution of the gravitational redshift in the observed line velocity, (3) existence of rotating black holes and of matter inside its ergosphere, (4) quasars located within cosmological redshifts $\\sim 3$, (5) $\\gamma$ ray bursts being explosive events in a quasar. These results are significant and a game-changer when we realise that the absorbing gas has been postulated to exist along the line-of-sight to the quasar and observations have accordingly been interpreted. In light of these definitive results which uniquely...

  18. Status of Design of PEFP Beam Lines

    Energy Technology Data Exchange (ETDEWEB)

    Park, Bum Sik; Cho, Yong Sub; Kwon, Hyeok Jung; Jang, Ji Ho; Hong, In Seok; Kim, Han Sung; Yun, Sang Pil; Lee, Hwa Ryun; Kim, Kye Ryung; Choi, Byung Ho [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2009-10-15

    PEFP(Proton Engineering Frontier Project) is developing a high current 100MeV proton linear accelerator. 20MeV and 100MeV proton beam lines are also under development for beam applications. 10 beam lines will be developed to support various purposes. Two kind of proton beam energy will be transported to 2 beamlines for industrial applications and 3 beamlines for various researches. The characteristic design scheme of PEFP beam lines is the application of a programmable AC magnet. Beam distribution to 3 research beam lines will be conducted sequentially to increase the operation efficiency by using it. To provide flexibility of the irradiation conditions, each beam line is designed to have specific beam parameters. The development of beamline components, including magnets, is conducted in parallel. The details will be reported.

  19. Status of Design of PEFP Beam Lines

    International Nuclear Information System (INIS)

    PEFP(Proton Engineering Frontier Project) is developing a high current 100MeV proton linear accelerator. 20MeV and 100MeV proton beam lines are also under development for beam applications. 10 beam lines will be developed to support various purposes. Two kind of proton beam energy will be transported to 2 beamlines for industrial applications and 3 beamlines for various researches. The characteristic design scheme of PEFP beam lines is the application of a programmable AC magnet. Beam distribution to 3 research beam lines will be conducted sequentially to increase the operation efficiency by using it. To provide flexibility of the irradiation conditions, each beam line is designed to have specific beam parameters. The development of beamline components, including magnets, is conducted in parallel. The details will be reported

  20. Cavity lining after excavating caries lesions

    DEFF Research Database (Denmark)

    Schwendicke, Falk; Göstemeyer, Gerd; Gluud, Christian

    2015-01-01

    OBJECTIVES: After removal of dentin caries lesions, cavity lining has been advocated. Non-clinical data support this approach, but clinical data are sparse and ambiguous. We aimed at evaluating the benefits and harms of cavity lining using meta-analysis and Trial Sequential Analysis. DATA: We...... included randomized clinical trials comparing restorations without versus with cavity lining for treating primary caries lesions. Only trials reporting failure (defined as need to re-retreat) after ≥1 year follow-up were included. Trial selection, data extraction, and risk of bias assessment were conducted....... STUDY SELECTION: From 128 studies, three randomized trials (89/130 patients or teeth), all treating primary teeth, were included. The trials had high risk of bias. All trials compared no lining versus calcium hydroxide lining after selective caries removal followed by adhesive restoration. Follow...

  1. Power Line Communication Based Home Security System

    Directory of Open Access Journals (Sweden)

    Sankalp N. Gujar

    2013-11-01

    Full Text Available The aim of this paper is to demonstrate the use of Power line (A.C mains based security system i.e. developing the hardware for a microcontroller module that is to be interfaced to sensors which will detect breaches in security and developing a power line communication modem for sending/receiving data from the microcontroller modules over the power line. As soon as any one of the sensors in an establishment is triggered, the microcontroller will send data to the power line communication modem over UART. The modem will then convert the incoming data into a packet, modulate it using ASK and transmit it over the power line through the coupling circuit. The modem at the security cabin will demodulate this packet and send it to the microcontroller over UART. The microcontroller then activates the alarm and displays the location and nature of the breach on the display

  2. On line contribution functions and examining spectral line formation in 3D model stellar atmospheres

    CERN Document Server

    Amarsi, Anish Mayur

    2015-01-01

    Line contribution functions are useful diagnostics for studying spectral line formation in stellar atmospheres. I derive an expression for the contribution function to the abso- lute flux depression that emerges from three-dimensional box-in-a-star model stellar atmospheres. I illustrate the result by comparing the local thermodynamic equilibrium (LTE) spectral line formation of the high-excitation permitted OI777nm lines with the non-LTE case.

  3. Defining and generating axial lines from street center lines for better understanding of urban morphologies

    OpenAIRE

    Xintao, Liu; Bin, Jiang

    2012-01-01

    Axial lines are defined as the longest visibility lines for representing individual linear spaces in urban environments. The least number of axial lines that cover the free space of an urban environment or the space between buildings constitute what is often called an axial map. This is a fundamental tool in space syntax, a theory developed by Bill Hillier and his colleagues for characterizing the underlying urban morphologies. For a long time, generating axial lines with help of some graphic...

  4. Power line communications theory and applications for narrowband and broadband communications over power lines

    CERN Document Server

    Ferreira, Hendrik C; Newbury, John; Swart, Theo G

    2010-01-01

    Power Line Communications (PLC) is a promising emerging technology, which has attracted much attention due to the wide availability of power distribution lines. This book provides a thorough introduction to the use of power lines for communication purposes, ranging from channel characterization, communications on the physical layer and electromagnetic interference, through to protocols, networks, standards and up to systems and implementations. With contributions from many of the most prominent international PLC experts from academia and industry, Power Line Communications brings togeth

  5. The intrinsic line width of the Fe Ka line of AGN

    CERN Document Server

    Liu, Jiren

    2016-01-01

    X-ray fluorescent lines are unique features of the reflection spectrum of the cold torus when irradiated by the central AGN. Their intrinsic line widths can be used to probe the line-emitting region. The line widths of the Fe \\Ka line measured from the first order Chandra High Energy Grating (HEG) spectra are $3-5$ times larger than those measured with the Si \\Ka line for Circinus, Mrk 3, and NGC 1068. Because the observed Si \\Ka and Fe \\Ka lines are not necessarily coming from the same physical region, it is uncertain whether the line widths of the Fe \\Ka line are over-estimated or not. We measured the intrinsic line widths of the Fe \\Ka line of several nearby bright AGN using the second and third order Chandra HEG spectra, whose spectral resolutions are better than the first order data. We found the measured widths are all smaller than those from the first order data. The results clearly show that the widths of the Fe \\Ka line measured from the first order HEG data are over-estimated. It indicates that the ...

  6. On systematic errors in spectral line parameters retrieved with the Voigt line profile

    Science.gov (United States)

    Kochanov, V. P.

    2012-08-01

    Systematic errors inherent in the Voigt line profile are analyzed. Molecular spectrum processing with the Voigt profile is shown to underestimate line intensities by 1-4%, with the errors in line positions being 0.0005 cm-1 and the decrease in pressure broadening coefficients varying from 5% to 55%.

  7. OPTIMIZATION OF TRANSIENT FEEDING TO PARALLEL-PLATE TRANSMISSION LINES FROM COAXIAL LINE

    Institute of Scientific and Technical Information of China (English)

    Tian Chunming; Wang Jianguo; Meng Fenxia; Zhang Maoyu; Ge Debiao

    2001-01-01

    The transient feeding to parallel-plate transmission lines from coaxial line is optimized by using the Finite-Difference Time-Domain (FDTD) method and a simple FDTD feed model. Observing the reflected voltages, this letter presents the optimal feeding position and ratio of width to height for a given input impedance of the coaxial line.

  8. LINE FUSION GENES: a database of LINE expression in human genes

    Directory of Open Access Journals (Sweden)

    Park Hong-Seog

    2006-06-01

    Full Text Available Abstract Background Long Interspersed Nuclear Elements (LINEs are the most abundant retrotransposons in humans. About 79% of human genes are estimated to contain at least one segment of LINE per transcription unit. Recent studies have shown that LINE elements can affect protein sequences, splicing patterns and expression of human genes. Description We have developed a database, LINE FUSION GENES, for elucidating LINE expression throughout the human gene database. We searched the 28,171 genes listed in the NCBI database for LINE elements and analyzed their structures and expression patterns. The results show that the mRNA sequences of 1,329 genes were affected by LINE expression. The LINE expression types were classified on the basis of LINEs in the 5' UTR, exon or 3' UTR sequences of the mRNAs. Our database provides further information, such as the tissue distribution and chromosomal location of the genes, and the domain structure that is changed by LINE integration. We have linked all the accession numbers to the NCBI data bank to provide mRNA sequences for subsequent users. Conclusion We believe that our work will interest genome scientists and might help them to gain insight into the implications of LINE expression for human evolution and disease. Availability http://www.primate.or.kr/line

  9. LINE BALANCING ANALYSIS OF TUNER PRODUCT MANUFACTURING

    Directory of Open Access Journals (Sweden)

    HAERYIP SIHOMBING,

    2011-06-01

    Full Text Available The processing time and the number of operators have strong relationship with the productivity of production lines. In the tuner production line, three significant factors related to productivity through using of line balancing method are the number of operator, production tools/equipment, and production process. This studyperformed the line balancing method through simulation model in order to reduce the line unbalancing causes and relocate the workforce associated to idle time, eliminating the bottleneck, and at the same time maintaining/ improving the productivity. To analyze the production line, we use a develop simulation tool, called Fact-Model, to modeling the production line (with the graph of critical path network and working time and the works estimated (related to the cycle time, takt time, non-value added activities, quantity, and cost. Fact-Model is facilitated with the features that enable the user to depict the real production flows by using their owned realpictures/photos taken into their simulation model.

  10. An introduction to product line management.

    Science.gov (United States)

    1991-01-01

    Management by product line has been used successfully in the manufacturing industry for decades. As the healthcare industry evolves, implementation of Product Line Management is emerging as one strategy to increase efficiency, effectiveness, and profitability. Product Line Management is an organizational scheme and alternative management system for focusing on the programmatic scope of operations in order to achieve particular objectives. Product Line Management in a hospital setting requires deviation from linear functional management paradigms to a reorganization in thinking that focuses on end-result objectives. This management structure recognizes the need to integrate operational and clinical management in response to market-driven forces from both the standpoint of packaging products for the marketplace and appropriate management of those products to improve organizational effectiveness and profitability. However, a "test of time" is necessary to evaluate whether Product Line Management has a positive impact on clinical intervention and outcome. Although Product Line Management seems to be a method to increase profitability, its effect on the quality of client care remains unclear. Speech-language pathologists and audiologists need to be well informed about Product Line Management in the healthcare industry, and should prepare for the possibility of participating within such a framework. Finally, speech-language pathologists and audiologists need to examine and consider their particular qualifications for assuming leadership within such a structure. PMID:2001266

  11. Towards on-line Ohba's conjecture

    CERN Document Server

    Kozik, Jakub; Zhu, Xuding

    2011-01-01

    Ohba conjectured that every graph $G$ with $|V(G)| \\le 2 \\chi(G)+1$ has its choice number equal its chromatic number. The on-line choice number of a graph is a variation of the choice number defined through a two person game, and is always at least as large as its choice number. Based on the result that for $k \\ge 3$, the complete multipartite graph $K_{2\\star (k-1), 3}$ is not on-line $k$-choosable, the on-line version of Ohba's conjecture is modified in [P. Huang, T. Wong and X. Zhu, Application of polynomial method to on-line colouring of graphs, European J. Combin., 2011] as follows: Every graph $G$ with $|V(G)| \\le 2 \\chi(G)$ has its on-line choice number equal its chromatic number. In this paper, we prove that for any graph $G$, there is an integer $n$ such that the join $G + K_n$ of $G$ and $K_n$ has its on-line choice number equal chromatic number. Then we show that the on-line version of Ohba conjecture is true if $G$ has independence number at most 3. We also present an alternative proof of the resu...

  12. Overhead power lines. Planning, design, construction

    Energy Technology Data Exchange (ETDEWEB)

    Kiessling, F.; Nefzger, P.; Nolasco, J.F.; Kaintzyk, U. [Siemens AG, Power Transmission and Distribution, Erlangen (Germany)

    2003-07-01

    The basic elements of overhead power line technology have been known for many years. However, this technology has continuously developed, for example, to adjust design of the lines to new transmission needs, to available rights-of-way, and to accommodate environmental concerns or resources. Since many existing overhead line installations are approaching the end of their economic and technical lifetime, strategies for maintenance to extending their operational life are needed. Also, because fo the introduction of new standards and deregulation, the basis of design and verification for all aspects and steps in overhead line planning and construction has changed. The industry, therefore, requires a publication reflecting these developments and changes. Overhead Power Lines presents not only the scientific and engineering basis for the electric and mechanical design, but also comprehensively describes all aspects of most recent technology, including the selection and design of components such as conductors, insulators, fittings, supports and foundations. The chapters on line survey, construction and maintenance address updated requirements and solutions. In addition, the book carefully considers the changing economic and technical environment of the overhead power line business. This publication is intended to introduce students and beginners to the full range of relevant topics of line design and implementation and to serve as a valuable reference to engineers and technicians employed by overhead line operators, contractors and consulting companies to carry out their daily tasks. The book also supplies everyone else in the electric-energy supply industry, including design, maintenance, and construction engineers, with a ready reference. This first English-language edition is based on the 5th German-language edition and incorporates the latest international standards edited by Cigre, the International Council of Large Electric Systems, IEC and CENELEC. The authors are

  13. Train turn restrictions and line plan performance

    DEFF Research Database (Denmark)

    Burggraeve, Sofie; Bull, Simon Henry; Lusby, Richard Martin;

    In this paper we study the impact of the `turn conditions' in end stations on the performance of a line plan. If trains have to turn on their platform in an end station, the yoccupy the platform for several minutes. A more preferred option, from a timetabling point of view, would be that a train...... in a exible and large enough shunt. Starting from a given line plan, we compare two timetables, one where trains have to turn on their platform and one where trains can turn in a shunt. We evaluate the impact on the performance of the line plan by its feasibility for timetabling,the minimum overall buffer...

  14. Microwave line of sight link engineering

    CERN Document Server

    Angueira, Pablo

    2012-01-01

    A comprehensive guide to the design, implementation, and operation of line of sight microwave link systems The microwave Line of Sight (LOS) transport network of any cellular operator requires at least as much planning effort as the cellular infrastructure itself. The knowledge behind this design has been kept private by most companies and has not been easy to find. Microwave Line of Sight Link Engineering solves this dilemma. It provides the latest revisions to ITU reports and recommendations, which are not only key to successful design but have changed dramatically in

  15. The various lines followed in the world

    International Nuclear Information System (INIS)

    If the imaginable lines can be counted in hundreds, at least ten of them have effectively contributed to the production of energy and among them the LWR line (reactors cooled and moderated with ordinary water) represent 3/4 of the installed power and an even greater proportion of orders for nuclear power stations. The problems of fissile material supply will undoubtly make it imperative to have massive recourse to fast reactors, superregenerating reactors that produce more fissile material than they consume. Thanks to their special characteristics, high temperature reactors should also play a part. These three lines have, moreover, the advantage of being to a great extent complementary

  16. Elk and plants thrive near power lines

    Energy Technology Data Exchange (ETDEWEB)

    Lustre, L.

    1997-11-01

    Butterflies and elk gather in clearings near power line right-of-ways and on the edges of such clearings, where the wild flowers and plants that have widely disappeared as a result of intensive farming and subsurface drainage of fields have found a good habitat. Ornamental coniferous trees, various herbs and assorted berries do well and can be harvested near power lines from woodland clearings once thought unfit for cultivation. IVS, the nationwide network company, takes part in many projects aiming both to increase productive utilization of land areas under power lines and to promote biodiversity

  17. Cascade model of power lines for PLC

    OpenAIRE

    Dziura, Michal

    2012-01-01

    This bachelor´s thesis deals with studies of power-line in terms of possibilities for using grid as a transmission medium for data transmission. Theoretical part is focused on PLC technology and the parameters of high-voltage lines. In very practical part the modeling of power-line by cascade parameters of two-port network is examined. Influence of va-rious changes in network topology are included in this thesis and also their influence on transfer function. The last part outlines the method ...

  18. Standards for Cell Line Authentication and Beyond

    Science.gov (United States)

    Cole, Kenneth D.; Plant, Anne L.

    2016-01-01

    Different genomic technologies have been applied to cell line authentication, but only one method (short tandem repeat [STR] profiling) has been the subject of a comprehensive and definitive standard (ASN-0002). Here we discuss the power of this document and why standards such as this are so critical for establishing the consensus technical criteria and practices that can enable progress in the fields of research that use cell lines. We also examine other methods that could be used for authentication and discuss how a combination of methods could be used in a holistic fashion to assess various critical aspects of the quality of cell lines. PMID:27300367

  19. Line Generalization and AutoCAD Map

    OpenAIRE

    Nada Vučetić; Miljenko Lapaine

    2001-01-01

    The paper offers the results of original research made on the application of AutoCAD Map in line generalisation. The differences and similarities have been found out between the Douglas-Peucker method and the method of line simplification that is incorporated in AutoCAD Map. There have been also the inaccuracies found out in AutoCAD Map manual relating to the issues of buffer width and tolerance, and the line width before and after simplification. The paper gives recommendations about pseudo ...

  20. RF and microwave coupled-line circuits

    CERN Document Server

    Mongia, R K; Bhartia, P; Hong, J; Gupta, K C

    2007-01-01

    This extensively revised edition of the 1999 Artech House classic, RF and Microwave Coupled-Line Circuits, offers you a thoroughly up-to-date understanding of coupled line fundamentals, explaining their applications in designing microwave and millimeter-wave components used in today's communications, microwave, and radar systems. The Second Edition includes a wealth of new material, particularly relating to applications. You find brand new discussions on a novel simple design technique for multilayer coupled circuits, high pass filters using coupled lines, software packages used for filter des

  1. Coupled Transmission Lines as Impedance Transformer

    DEFF Research Database (Denmark)

    Jensen, Thomas; Zhurbenko, Vitaliy; Krozer, Viktor;

    2007-01-01

    A theoretical investigation of the use of a coupled line section as an impedance transformer is presented. We show how to properly select the terminations of the coupled line structures for effective matching of real and complex loads in both narrow and wide frequency ranges. The corresponding....... Wideband matching performance with relative bandwidth beyond 100% and return loss > 20 dB is demonstrated both theoretically and experimentally. Good agreement is achieved between the measured and predicted performance of the coupled line transformer section....

  2. Significant contribution of the Cerenkov line-like radiation to the broad emission lines of quasars

    Energy Technology Data Exchange (ETDEWEB)

    Liu, D. B.; You, J. H. [Institute of Nuclear, Particle, Astronomy and Cosmology, Department of Physics and Astronomy, and Shanghai Key Lab for Particle Physics and Cosmology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240 (China); Chen, W. P. [Institute of Astronomy and Department of Physics, National Central University, Chung-Li 32054, Taiwan (China); Chen, L., E-mail: dbliu@sjtu.edu.cn, E-mail: dliu@cfa.Harvard.edu [Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121, Bonn (Germany)

    2014-01-01

    The Cerenkov line-like radiation in a dense gas (N {sub H} > 10{sup 13} cm{sup –3}) is potentially important in the exploration of the optical broad emission lines of quasars and Seyfert 1 galaxies. With this quasi-line emission mechanism, some long standing puzzles in the study of quasars could be resolved. In this paper, we calculate the power of the Cerenkov line-like radiation in dense gas and compare with the powers of other radiation mechanisms by a fast electron to confirm its importance. From the observed gamma-ray luminosity of 3C 279, we show that the total number of fast electrons is sufficiently high to allow effective operation of the quasi-line emission. We present a model calculation for the luminosity of the Cerenkov Lyα line of 3C 279, which is high enough to compare with observations. We therefore conclude that the broad line of quasars may be a blend of the Cerenkov emission line with the real line produced by the bound-bound transition. A new approach to the absorption of the Cerenkov line is presented with the method of escape probability, which markedly simplifies the computation in the optically thick case. The revised set of formulae for the Cerenkov line-like radiation is more convenient in applications.

  3. Model to Design Drip Hose Lateral Line

    Science.gov (United States)

    Ludwig, Rafael; Cury Saad, João Carlos

    2014-05-01

    Introduction The design criterion for non-pressure compensating drip hose is normally to have 10% of flow variation (Δq) in the lateral line, corresponding to 20% of head pressure variation (ΔH). Longer lateral lines in drip irrigation systems using conventional drippers provide cost reduction, but it is necessary to obtain to the uniformity of irrigation [1]. The use of Δq higher levels can provide longer lateral lines. [4] proposes the use of a 30% Δq and he found that this value resulted in distribution uniformity over 80%. [1] considered it is possible to extend the lateral line length using two emitters spacing in different section. He assumed that the spacing changing point would be at 40% of the total length, because this is approximately the location of the average flow according with [2]. [3] found that, for practical purposes, the average pressure is located at 40% of the length of the lateral line and that until this point it has already consumed 75% of total pressure head loss (hf ). In this case, the challenge for designers is getting longer lateral lines with high values of uniformity. Objective The objective of this study was to develop a model to design longer lateral lines using non-pressure compensating drip hose. Using the developed model, the hypotheses to be evaluated were: a) the use of two different spacing between emitters in the same lateral line allows longer length; b) it is possible to get longer lateral lines using high values of pressure variation in the lateral lines since the distribution uniformity stays below allowable limits. Methodology A computer program was developed in Delphi® based on the model developed and it is able to design lateral lines in level using non-pressure compensating drip hose. The input data are: desired distribution uniformity (DU); initial and final pressure in the lateral line; coefficients of relationship between emitter discharge and pressure head; hose internal diameter; pipe cross-sectional area

  4. Integration of On-Line and Off-Line Diagnostic Algorithms for Aircraft Engine Health Management

    Science.gov (United States)

    Kobayashi, Takahisa; Simon, Donald L.

    2007-01-01

    This paper investigates the integration of on-line and off-line diagnostic algorithms for aircraft gas turbine engines. The on-line diagnostic algorithm is designed for in-flight fault detection. It continuously monitors engine outputs for anomalous signatures induced by faults. The off-line diagnostic algorithm is designed to track engine health degradation over the lifetime of an engine. It estimates engine health degradation periodically over the course of the engine s life. The estimate generated by the off-line algorithm is used to update the on-line algorithm. Through this integration, the on-line algorithm becomes aware of engine health degradation, and its effectiveness to detect faults can be maintained while the engine continues to degrade. The benefit of this integration is investigated in a simulation environment using a nonlinear engine model.

  5. Dietary intake level of elements with Kashin-Beck disease areas in parts of Aba Autonomous Prefecture of Sichuan Province%四川省阿坝州大骨节病病区居民各种元素摄入水平调查

    Institute of Scientific and Technical Information of China (English)

    刘玲; 赵欣; 马文军; 卓滋泽

    2014-01-01

    Objective To investigate and determine the dietary intake level and food source of elements in Kashin-Beck disease(KBD) and non-endemic KBD areas in parts of Aba Autonomous Prefecture , Sichuan Province. Methods Three KBD villages were selected from each county including the counties of Songpan , Jiuzhaigou and Ruoergai in Aba Autonomous Prefecture with multi stage random sampling method in 2010 , and 122 KBD patients who were diagnosed at county-level or higher-level hospitals were selected from villages. One non-KBD village was selected randomly from each county and 43 controls without KBD or other bone and joint disease were selected in proportion to the number of investigated KBD patients. Dietary intake of each object was recorded 24 hours before the survey using a 24 hour dietary survey method and intake of each kind of food(cooked food) was recorded. Three day dietary intake of each surveyed object was recorded in continuous and the average value was calculated. The local resident representative food samples were collected and 20 kinds of elements in these samples were determined with inductively coupled plasma mass spectrometry ( ICP-MS ) and inductively coupled plasma atomic emission spectrometry(ICP-AES), and daily elements intake was calculated and compared with the relevant intake standards. Results Daily intakes of vegetables and meat were 126.72, 28.25 g, respectively, in patients with KBD. More than 3 times of brick tea was drank by KBD patients than non-KBD people (P<0.05). Per capita daily intakes of Ca, Fe, Mg, K, Na, Zn, I, Cu and Co were less than recommended nutrient intake or allowable daily intake in both groups. More than 80% patients with KBD overtook more Al and Pb than tolerable upper intake levels. Conclusion There is a single dietary structure and a serious shortage of a variety of essential elements intake in parts of Aba Autonomous Prefecture, and the dietary intake level of elements is different between two groups.%目的:了解

  6. 成人大骨节病膝关节生物力学及形态学数字X线摄影评价%Digital radiography evaluation of morphology and bone biomechanics for knees of adult patients with Kashin-Beck disease

    Institute of Scientific and Technical Information of China (English)

    陈国华; 贾润慧; 高长泰; 廖永建

    2016-01-01

    目的:探讨成人大骨节病( KBD)与原发性骨关节炎( OA)患者膝关节生物力学及X线形态学指标的差异,为成人KBD患者膝外科矫形提供参考。方法回顾性分析2012年3月—2014年9月,甘肃省疾病控制中心地方病科确诊的326例成人KBD患者的膝关节数字X线摄影( DR)正位片资料,并作为 KBD组。按随机数字表法抽取甘肃省中医院影像中心和武威市中医院放射科2012年10月—2014年10月接诊的271例原发性OA患者膝关节正位DR片( OA组),测量比较两组患者膝关节正位DR片中软骨下骨硬化厚度、游离体数、骨赘数,以及股骨角、胫骨角、股骨胫骨角、关节间隙角、股骨内外侧髁高度/宽度参数。结果 KBD组326例患者中182例(55.82%)软骨下骨硬化厚度为2.1~4.9 mm,171例(52.45%)关节腔游离体数为1~2个,173例(53.07%)骨赘数≥4个。OA组271例中107例(39.48%)软骨下骨硬化厚度为2.1~4.9 mm,123例(45.38%)关节腔游离体数为1~2个,145例(53.50%)骨赘数≥4个。两组患者DR片上软骨下骨硬化厚度、游离体数、骨赘数比较,差异均有统计学意义(Z=2.187、3.503、4.029,P值均<0.05)。 KBD组关节间隙角、股骨内侧髁高度/宽度比值均大于OA组,股骨胫骨角小于OA组,差异均有统计学意义( t=10.464、24.174、30.539,P值均<0.01);而两组股骨角、胫骨角、股骨外侧髁高度/宽度比值,差异均无统计学意义(t=0.943、1.763、0.551,P值均>0.05)。结论成人KBD患者膝关节软骨下骨硬化程度、游离体数、骨赘数均高于OA患者。成人KBD患者和OA患者下肢力线均向内侧髁倾斜,但前者倾斜程度比后者严重。%Objective To discuss the differences between lower limb alignment X-ray knee morphology index of adult patients with Kashin-Beck disease(KBD) and that of osteoarthritis(OA)so as to provide surgical references for orthopedic treatment of severe grade adult patients with KBD. Methods Three hundred

  7. 基于Beck口腔评分的综合口腔护理干预体系在气管插管病人中的应用%Application of Comprehensive Oral Care Intervention System Based on Beck Oral Assessment Score in Patients with Orotracheal Intubation

    Institute of Scientific and Technical Information of China (English)

    王婉洁; 李亚洁; 刘晓玲

    2014-01-01

    Objective To explore the effects of comprehensive oral care intervention system based on Beck Oral Assessment Score (BOAS) in oral care of orotracheal intubation patients. Methods Comprehensive oral care intervention system based on BOAS was implemented in 33 orotracheal intubation patients who met the inclusion criteria from October 2012 to February 2014. The system includes BOAS, the frequency of oral care (based on BOAS, twice to 4 times per day), systematic oral care and the scoring after intervention. After five-day implementation, incidence of oral odor, bacteria count of oropharyngeal bacteria culture and BOAS were compared at the first, the third and the fifth day. Results There was lower incidence of oral odor, bacteria count of oropharyngeal bacteria culture and BOAS in three days (P<0.05) and the incidence of ventilator associated pneumonia (VAP) was 6.1%. Conclusion Comprehensive oral care intervention system based on BOAS can standardize oral care procedure, reduce the incidence of oral odor, the bacterial colonization in the oropharynx and VAP.%目的:评价以Beck口腔评分为指导的综合性口腔护理干预体系在气管插管病人口腔护理中的运用效果,为建立规范化的口腔护理协议提供循证依据。方法2012年10月-2014年2月对进入我科行经口气管插管机械通气治疗的、符合纳入标准的33例病人,使用基于Beck口腔评分的综合性口腔护理干预体系进行口腔护理。综合性的口腔护理干预体系包含了:Beck口腔评分,由评分确定系统性口腔护理的频次,系统性口腔护理,以及干预后的再次评分。根据评分情况给予2次/d至1次/4h的口腔护理,采用综合气道吸引、负压吸引式牙刷刷牙、口腔冲洗、口腔擦拭、口腔湿润及氯己定漱口液共同作用的系统性口腔护理程序进行口腔护理。观察期为5 d。观察病人第1天、第3天、第5天口腔护理前口腔异味发生率、口咽部

  8. Controlled Compact High Voltage Power Lines

    Directory of Open Access Journals (Sweden)

    Postolati V.

    2016-04-01

    Full Text Available Nowadays modern overhead transmission lines (OHL constructions having several significant differences from conventional ones are being used in power grids more and more widely. Implementation of compact overhead lines equipped with FACTS devices, including phase angle regulator settings (compact controlled OHL, appears to be one of the most effective ways of power grid development. Compact controlled AC HV OHL represent a new generation of power transmission lines embodying recent advanced achievements in design solutions, including towers and insulation, together with interconnection schemes and control systems. Results of comprehensive research and development in relation to 110–500kV compact controlled power transmission lines together with theoretical basis, substantiation, and methodological approaches to their practical application are presented in the present paper.

  9. Virginia ESI: HYDRO (Hydrography Lines and Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains vector lines and polygons representing coastal hydrography used in the creation of the Environmental Sensitivity Index (ESI) for Virginia....

  10. Legendre rational approximation on the whole line

    Institute of Scientific and Technical Information of China (English)

    GUO; Benyu; WANG; Zhongqing

    2004-01-01

    The Legendre rational approximation is investigated. Some approximation results are established, which form the mathematical foundation of a new spectral method on the whole line. A model problem is considered. Numerical results show the efficiency of this new approach.

  11. The Of emission lines near 4650 A

    Science.gov (United States)

    Underhill, A. B.; Gilroy, K. K.; Hill, G. M.

    1989-09-01

    Rectified, normalized, high S/N intensity tracings of nine Of stars were obtained from Reticon spectra in the 4550-4800-A region. The well-known relatively sharp Of emission lines are seen to stand on pedestals of broad weak emission somewhat like the broad emission lines from WR stars. It is suggested that cascades following dielectronic recombination may be an important process driving some lines of N III, C III, and C IV into the emission of Of stars, and that the sharp Of lines come from plasma that is stationary with respect to the star. The broad emission features show an extensive low-density wind from each star. The results imply that the detection of two, more or less equal, broad jumps in the rest spectra of galaxies at about 4640 and 4686 A is more indicative of Of stars than of WR stars.

  12. Experience with the Alpine Breaker Line Support

    Energy Technology Data Exchange (ETDEWEB)

    Habnicht, H.; Halbmayer, C.

    1989-01-01

    The Alpine Breaker Line Support is new, mechanised support equipment for stabilising the caving edge during depillaring operations. A short discussion is presented of some panel geometry variations used, and of performance data achieved. 5 figs.

  13. Louisiana ESI: HYDRO (Hydrography Lines and Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains vector lines and polygons representing coastal hydrography used in the creation of the Environmental Sensitivity Index (ESI) for coastal...

  14. Handbook of spectral lines in diamond

    CERN Document Server

    Dischler, Bernhard

    2012-01-01

    This handbook is a breakthrough in the understanding of the large number of spectral lines in diamond. Data on more than 2000 lines and bands are presented in 200 tables, including many unpublished results. With a novel organization scheme, the search for a specific line is greatly simplified as a benefit for researchers and students. In order to meet the interest in the understanding of the spectra, structure assignments for 80 % of the lines are given, of which 15 % only were published before. The majority of the structures for the 300 centers is explained in most cases for the first time. A key instrument in the interpretation is the analysis by donor-acceptor pair transitions. In a special chapter 95 such centers are listed and discussed, of which only two have been published before, the first one by the present author in 1994.

  15. Anomalous fluorescence line intensity in megavoltage bremsstrahlung

    Science.gov (United States)

    Pereira, Nino; Litz, Marc; Merkel, George; Schumer, Joseph; Seely, John; Carroll, Jeff

    2009-11-01

    A Cauchois transmission crystal spectrometer intended for laser plasma diagnostics has measured an anomalous ratio between the fluorescence lines in megavoltage bremsstrahlung. When observed in reflection, Kα1 fluorescence is twice as strong as the Kβ line, as is usual. However, in forward-directed bremsstrahlung from a 2 MV end point linear accelerator with a tungsten converter, the Kα1 and Kβ fluorescence are approximately equal. The anomalous fluorescence line ratio, unity, reflects the large amount of fluorescence generated on the side of the converter where the electrons enter, and the differential attenuation of the fluorescence photons as they pass through the converter to opposite side. Understanding of fluorescence in megavoltage bremsstrahlung is relevant to the explanation of anomalous line ratios in spectra produced by high-energy electrons generated by intense femtosecond laser irradiation.

  16. Water Distribution Lines, Published in 2006, Farmer.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Water Distribution Lines dataset, was produced all or in part from Field Survey/GPS information as of 2006. Data by this publisher are often provided in Not...

  17. Alabama ESI: HYDRO (Hydrography Lines and Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains vector lines and polygons representing coastal hydrography used in the creation of the Environmental Sensitivity Index (ESI) for Alabama. The...

  18. Sevick's transmission line transformers theory and practice

    CERN Document Server

    Mack, Raymond

    2014-01-01

    An updated and reorganized revision of the classic book Transmission Line Transformers (2001) by Jerry Sevick, this book provides communication engineers with a clear technical presentation of both the theory and practical applications of the transmission of radio communication.

  19. Mooring Line for an Oceanographic Buoy System

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — A mooring line for an oceanographic buoy system includes four sections. The first section is a protected cable that is connectable to the buoy. The second section...

  20. Seismic Lines in Louisiana and Texas [gcseismicg

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The lines shown are those used by the USGS in developing the framework geology and models used in assessing the oil and gas resources of the Gulf Coast Region. The...

  1. Non-Voigt Lyalpha Absorption Line Profiles.

    Science.gov (United States)

    Outram; Carswell; Theuns

    2000-02-01

    Recent numerical simulations have lead to a paradigm shift in our understanding of the intergalactic medium and the loss of a physical justification for Voigt profile fitting of the Lyalpha forest. Many individual lines seen in simulated spectra have significant departures from the Voigt profile, yet could be well fitted by a blend of two or more such lines. We discuss the expected effect on the line profiles due to ongoing gravitational structure formation and Hubble expansion. We develop a method to detect departures from Voigt profiles of the absorption lines in a statistical way and apply this method to simulated Lyalpha forest spectra, confirming that the profiles seen do statistically differ from Voigt profiles. PMID:10622758

  2. Quantitative Trait Loci in Inbred Lines

    NARCIS (Netherlands)

    Jansen, R.C.

    2001-01-01

    Quantitative traits result from the influence of multiple genes (quantitative trait loci) and environmental factors. Detecting and mapping the individual genes underlying such 'complex' traits is a difficult task. Fortunately, populations obtained from crosses between inbred lines are relatively ide

  3. Columbia River ESI: FISHL (Fish Lines)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for anadromous fish species in Columbia River. Vector lines in this data set represent locations of...

  4. Western Alaska ESI: FISHL (Fish Lines)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains sensitive biological resource data for anadromous fish species in Western Alaska. Vector lines in this data set represent species occurrences...

  5. On line measurement systems for calorimetric measurements

    International Nuclear Information System (INIS)

    The development of on-line measurement systems for calorimetric measurements for the last twenty years is traced and an attempt of their classification according to the automation level and hardware unification degree is undertaken. Main attention is given to the structure of variuos types of the above systems and the role of computers as a control and calculating device in the system. The methodic problems are considered in brief. Semiautomatic measurement systems for calorimetric measurements on the base of simple controllers, the systems with one or several mini- and microcomputers on-line with an experimental installation as well as the systems with various types of interface buses (CAMAC, IEEE 488, Multibus) are described. Tendencies in the development of the measurement systems related with application of microprocessors into computer and measuring engineering and possible prospects of the on-line measurement systems for calorimetric measurements as a specific variety of on-line systems for physical experiments are considered

  6. Maryland ESI: HYDRO (Hydrography Lines and Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains vector lines and polygons representing coastal hydrography used in the creation of the Environmental Sensitivity Index (ESI) for Maryland....

  7. Molecular absorption in transition region spectral lines

    CERN Document Server

    Schmit, Donald; Ayres, Thomas; Peter, Hardi; Curdt, Werner; Jaeggli, Sarah

    2014-01-01

    Aims: We present observations from the Interface Region Imaging Spectrograph (IRIS) of absorption features from a multitude of cool atomic and molecular lines within the profiles of Si IV transition region lines. Many of these spectral lines have not previously been detected in solar spectra. Methods: We examined spectra taken from deep exposures of plage on 12 October 2013. We observed unique absorption spectra over a magnetic element which is bright in transition region line emission and the ultraviolet continuum. We compared the absorption spectra with emission spectra that is likely related to fluorescence. Results: The absorption features require a population of sub-5000 K plasma to exist above the transition region. This peculiar stratification is an extreme deviation from the canonical structure of the chromosphere-corona boundary . The cool material is not associated with a filament or discernible coronal rain. This suggests that molecules may form in the upper solar atmosphere on small spatial scales...

  8. Automatic line generalization using zero-crossings

    Science.gov (United States)

    Thapa, K.

    1988-01-01

    The problem of automating the process of line generalization has been very difficult. It has not been solved yet despite the concerted effort of many private firms as well as government agencies. There does not exist an algorithm which can automatically perform this process when there is a drastic change in scale between the original and generalized maps. In this paper, an algorithm which is successful in automatically generalizing lines from any large scale to any small scale is presented. The algorthm achieves different levels of smoothing the line while preserving the overall shape of the line. The results are compared with those obtained by manual methods. It was found that the results obtained by the algorithm are very close to those obtained by cartographers using manual methods.

  9. Digital Line Graphs (DLG) 100K

    Data.gov (United States)

    Kansas Data Access and Support Center — Digital line graph (DLG) data are digital representations of cartographic information. DLG's of map features are converted to digital form from maps and related...

  10. Digital Line Graphs (DLG) 24K

    Data.gov (United States)

    Kansas Data Access and Support Center — Digital line graph (DLG) data are digital representations of cartographic information. DLG's of map features are converted to digital form from maps and related...

  11. Formation of the helium EUV resonance lines

    CERN Document Server

    Golding, Thomas Peter; Carlsson, Mats

    2016-01-01

    Context: While classical models successfully reproduce intensities of many transition region lines, they predict helium EUV line intensities roughly an order of magnitude lower than the observed value. Aims: To determine the relevant formation mechanism(s) of the helium EUV resonance lines, capable of explaining the high intensities under quiet sun conditions. Methods: We synthesise and study the emergent spectra from a 3D radiation-magnetohydrodynamics simulation model. The effects of coronal illumination and non-equilibrium ionisation of hydrogen and helium are included self-consistently in the numerical simulation. Results: Radiative transfer calculations result in helium EUV line intensities that are an order of magnitude larger than the intensities calculated under the classical assumptions. The enhanced intensity of He I 584 is primarily caused by He II recombination cascades. The enhanced intensity of He II 304 and He II 256 is caused primarily by non-equilibrium helium ionisation. Conclusion: The anal...

  12. Section Level Public Land Survey - lines

    Data.gov (United States)

    Minnesota Department of Natural Resources — Public Land Survey line delineations to the section level. Developed from manually digitized section corners captured from paper USGS seven and one-half map sources.

  13. First line management in the public sector

    DEFF Research Database (Denmark)

    Voxted, Søren

    The paper will examines and discusses the results from a structured observational study, wherein 50 first-line managers from the public sector in Denmark in five areas of employment where observed. These observational studies are a key contribution in the ‘greenhouse for management’ project...... literature there has been established an ideal of having professional managers’ on all organizational levels, including first-line managers. This ideal is in contrast to a practice (especially in the municipal sector) where the first line managers often are included in the stipulated work norms and where......: Management in the first level - new light on the first layer of managers in the food chain. The purpose of this paper is to clarify and answer two partially overlapping questions: 1. Investigate municipal first-line managers work activities and usage of time. 2. Examine the proportion of the managers' time...

  14. Lineær Algebra via Eksempler

    DEFF Research Database (Denmark)

    Salomonsen, Hans Anton; Nielsen, Holger Andreas

    Notesæt til anvendelse i kurserne Calculus 1 og 2. Den elementære lineære algebra præsenteres gennem en række gennemregnede eksempler.......Notesæt til anvendelse i kurserne Calculus 1 og 2. Den elementære lineære algebra præsenteres gennem en række gennemregnede eksempler....

  15. Product Lines Can Jeopardize Their Trade Secrets

    OpenAIRE

    Acher, Mathieu; Bécan, Guillaume; Combemale, Benoit; Baudry, Benoit; Jézéquel, Jean-Marc

    2015-01-01

    International audience What do you give for free to your competitor when you exhibit a product line? This paper addresses this question through several cases in which the discovery of trade secrets of a product line is possible and can lead to severe consequences. That is, we show that an outsider can understand the variability realization and gain either confidential business information or even some economical direct advantage. For instance, an attacker can identify hidden constraints an...

  16. Generalized Lantern Relations and Planar Line Arrangements

    CERN Document Server

    Hironaka, Eriko

    2011-01-01

    In this paper we show that to each planar line arrangement defined over the real numbers, for which no two lines are parallel, one can write down a corresponding relation on Dehn twists that can be read off from the combinatorics and relative locations of intersections. This leads to an alternate proof of Wajnryb's generalized lantern relations, and of Endo, Mark and Horn-Morris' daisy relations.

  17. Analysis of banking activity by business line

    OpenAIRE

    E. Crété.

    2012-01-01

    Against a backdrop of financial tensions and banking regulation reforms, discussions about the various bank business lines have come into sharper focus and, in the light of the highly diversified profi le of French banking groups, in September 2011 the CNIS (Conseil national de l’information statistique – National Council for Statistical Information) set up a working group on bank business lines in which the Banque de France participated. Published in May 2012, the group’s report sets out var...

  18. ELF magnetospheric lines observed by DEMETER

    OpenAIRE

    Parrot, M.; Němec, F; Santolík, O; Berthelier, J. J.

    2005-01-01

    International audience The influence of man-made activity on the ionosphere may be very important. The effects induced by the Power Line Harmonic Radiation (PLHR) may change the natural wave activity and/or the ionospheric plasma components. One goal of the ionospheric satellite DEMETER launched in June 2004 is to study the ionospheric perturbations which could be related to this anthropogenic activity. As the first step, the paper presents Tram Lines (TL) which have been observed on board...

  19. Lines, dots and spirals on Peruvian land

    CERN Document Server

    Sparavigna, Amelia Carolina

    2011-01-01

    The most famous geoglyphs of Peru are the "Nazca Lines". Considered as one of the mysteries of the ancient world, they have been included among the UNESCO World Heritage Sites. Located in a large region between the towns of Nazca and Palpa, these lines create shapes of animals ranging in size up to 300 m. The archaeological site is under investigation with remote science technologies.

  20. Poverty Comparisons with Endogenous Absolute Poverty Lines

    OpenAIRE

    Simler, Kenneth R.; Arndt, Channing

    2006-01-01

    The objective of measuring poverty is usually to make comparisons over time or between two or more groups. Comm on statistical inference methods are used to determine whether an apparent difference in measured poverty is statistically significant. Studies of relative poverty have long recognized that when the poverty line is calculated from sample survey data, both the variance of the poverty line and the variance of the welfare metric contribute to the variance of the poverty estimate. In co...

  1. ACSEPP On-Line Electronic Payment Protocol

    Institute of Scientific and Technical Information of China (English)

    WANG Shao-bin; ZHU Xian; HONG Fan

    2004-01-01

    With analyzing the existing on-line electronic payment protocols, this paper presents a new on-line electronic payment protocol named ACSEPP: Anonymous, Convenient and Secure Electronic Payment Protocol.Its aim is to design a practical electronic payment protocol which is both secure and convenient.Without using PKI_CA frame, it realized the anonymity of consumer and merchant, the convenient of handling, the low cost of maintenance and the security.

  2. Narrow Line Photoassociation in an Optical Lattice

    OpenAIRE

    Zelevinsky, T.; Boyd, M. M.; Ludlow, A. D.; Ido, T.; Ye, J.(Physics Department, Southern Methodist University, Dallas, TX, United States of America); Ciurylo, R.; Naidon, P.; P.S. Julienne

    2006-01-01

    With ultracold $^{88}$Sr in a 1D magic wavelength optical lattice, we performed narrow line photoassociation spectroscopy near the $^1$S$_0 - ^3$P$_1$ intercombination transition. Nine least-bound vibrational molecular levels associated with the long-range $0_u$ and $1_u$ potential energy surfaces were measured and identified. A simple theoretical model accurately describes the level positions and treats the effects of the lattice confinement on the line shapes. The measured resonance strengt...

  3. Estimation of the Food Poverty Line

    OpenAIRE

    Albert, Jose Ramon G.; Molano, Wilma

    2009-01-01

    ABSTRACT To monitor changes in absolute poverty across time, it is crucial to ensure that the established poverty line is a fixed standard of living that represents the minimum standard required by an individual to fulfill his or her basic food and non-food needs. Typically, the food (component of the) poverty line is set with the cost of basic needs method, which entails determining the price of some nutritional benchmark through an artifice. In the Philippines, the official food poverty lin...

  4. Digital Model of Railway Electric Traction Lines

    Science.gov (United States)

    Garg, Rachana; Mahajan, Priya; Kumar, Parmod

    2016-08-01

    The characteristic impedance and propagation constant define the behavior of signal propagation over the transmission lines. The digital model for railway traction lines which includes railway tracks is developed, using curve fitting technique in MATLAB. The sensitivity of this model has been computed with respect to frequency. The digital sensitivity values are compared with the values of analog sensitivity. The developed model is useful for digital protection, integrated operation, control and planning of the system.

  5. Spinal Test Suites for Software Product Lines

    OpenAIRE

    Beohar, Harsh; Mousavi, MR Mohammad Reza

    2014-01-01

    A major challenge in testing software product lines is efficiency. In particular, testing a product line should take less effort than testing each and every product individually. We address this issue in the context of input-output conformance testing, which is a formal theory of model-based testing. We extend the notion of conformance testing on input-output featured transition systems with the novel concept of spinal test suites. We show how this concept dispenses with retesting the common ...

  6. Transmission Line Resonator Segmented with Series Capacitors

    DEFF Research Database (Denmark)

    Zhurbenko, Vitaliy; Boer, Vincent; Petersen, Esben Thade

    2016-01-01

    Transmission line resonators are often used as coils in high field MRI. Due to distributed nature of such resonators, coils based on them produce inhomogeneous field. This work investigates application of series capacitors to improve field homogeneity along the resonator. The equations for optimal...... values of evenly distributed capacitors are presented. The performances of the segmented resonator and a regular transmission line resonator are compared....

  7. Straight line feature based image distortion correction

    Institute of Scientific and Technical Information of China (English)

    Zhang Haofeng; Zhao Chunxia; Lu Jianfeng; Tang Zhenmin; Yang Jingyu

    2008-01-01

    An image distortion correction method is proposed, which uses the straight line features. Many parallel lines of different direction from different images were extracted, and then were used to optimize the distortion parameters by nonlinear least square. The thought of step by step was added when the optimization method working. 3D world coordi-nation is not need to know, and the method is easy to implement. The experiment result shows its high accuracy.

  8. Grant credit lines for energy efficiency

    International Nuclear Information System (INIS)

    The European Commission established a mechanism of credit lines to integrate more quickly the Bulgarian economy to the open international markets. Thereby it was enabled certain Bulgarian banks to provide grant loans to private companies in the industrial sector for projects of improvement of the energy efficiency of their production. The Bulgarian experience in using of two European credit lines and their role in the current economic crisis is presented in this paper. (authors)

  9. Power Line Communications for Smart Grid Applications

    OpenAIRE

    Lars Torsten Berger; Andreas Schwager; J. Joaquín Escudero-Garzás

    2013-01-01

    Power line communication, that is, using the electricity infrastructure for data transmission, is experiencing a renaissance in the context of Smart Grid. Smart Grid objectives include the integration of intermittent renewable energy sources into the electricity supply chain, securing reliable electricity delivery, and using the existing electrical infrastructure more efficiently. This paper surveys power line communications (PLCs) in the context of Smart Grid. The specifications G3-PLC, PRIM...

  10. Line Broadening and the Solar Opacity Problem

    Science.gov (United States)

    Krief, M.; Feigel, A.; Gazit, D.

    2016-06-01

    The calculation of line widths constitutes theoretical and computational challenges in the calculation of opacities of hot, dense plasmas. Opacity models use line broadening approximations that are untested at stellar interior conditions. Moreover, calculations of atomic spectra of the Sun indicate a large discrepancy in the K-shell line widths between several atomic codes and the Opacity-Project (OP). In this work, the atomic code STAR is used to study the sensitivity of solar opacities to line broadening. Variations in the solar opacity profile due to an increase of the Stark widths resulting from discrepancies with OP, are compared, in light of the solar opacity problem, with the required opacity variations of the present day Sun, as imposed by helioseismic and neutrino observations. The resulting variation profile is much larger than the discrepancy between different atomic codes, agrees qualitatively with the missing opacity profile, recovers about half of the missing opacity nearby the convection boundary, and has a little effect in the internal regions. Since it is hard to estimate quantitatively the uncertainty in the Stark widths, we show that an increase of all line widths by a factor of about ˜100 recovers quantitatively the missing opacity. These results emphasize the possibility that photoexcitation processes are not modeled properly, and more specifically, highlight the need for a better theoretical characterization of the line broadening phenomena at stellar interior conditions, and of the uncertainty due to the way it is implemented by atomic codes.

  11. Line and Continuum Variability in Active Galaxies

    CERN Document Server

    Rashed, Y E; Valencia-S., M; García-Marín, M; Busch, G; Zuther, J; Horrobin, M; Zhou, H

    2015-01-01

    We compared optical spectroscopic and photometric data for 18 AGN galaxies over 2 to 3 epochs, with time intervals of typically 5 to 10 years. We used the Multi-Object Double Spectrograph (MODS) at the Large Binocular Telescope (LBT) and compared the spectra to data taken from the SDSS database and the literature. We find variations in the forbidden oxygen lines as well as in the hydrogen recombination lines of these sources. For 4 of the sources we find that, within the calibration uncertainties, the variations in continuum and line spectra of the sources are very small. We argue that it is mainly the difference in black hole mass between the samples that is responsible for the different degree of continuum variability. In addition we find that for an otherwise constant accretion rate the total line variability (dominated by the narrow line contributions) reverberates the continuum variability with a dependency $\\Delta L_{line} \\propto (\\Delta L_{cont.})^{\\frac{3}{2}}$. Since this dependency is prominently e...

  12. Grid line artifact formation: A comprehensive theory

    International Nuclear Information System (INIS)

    Linear focused grids are commonly used in general radiography and mammography to control scatter. In these applications, if lines would be visible when the grid was stationary, then the grid is moved during the x-ray exposure to blur out grid lines. Presented is a theoretical framework for estimating grid line artifact magnitude and evaluating artifact suppression techniques. The framework takes as parameters the grid pitch, septum thickness, and exposure time, and allows for a variation in grid velocity and in x-ray tube output during the exposure. Grid line artifacts are evaluated for a variety of conditions. These include a stationary grid, a grid moving at a constant velocity with no kV ripple, a grid moving at a constant velocity with large kV ripple, and a grid moving with decreasing velocity and no kV ripple. Also evaluated are grid line artifacts for a novel suppression technique in which the grid moves at a constant velocity and the x-ray exposure waveform is 'feathered', i.e., when the x-ray exposure waveform has a soft start and stop. Of practical interest is that it is possible to effectively eliminate grid line artifacts when the grid moves only a short distance with an appropriately 'feathered' exposure waveform. This capability permits one to design efficient and compact coarse strip density grid systems

  13. Line broadening and the solar opacity problem

    CERN Document Server

    Krief, M; Gazit, D

    2016-01-01

    The calculation of line widths constitutes a theoretical as well as a computational challenge in the calculation of opacities of hot dense plasmas. Opacity models use line broadening approximations that are untested at stellar interior conditions. Moreover, calculations of atomic spectra nearby the convection zone boundary (CZB) of the sun, indicate a large discrepancy in the K-shell line widths between several atomic codes and the Opacity-Project. In this work, the atomic code STAR is used to study the sensitivity of solar opacities to line-broadening. Atomic spectra of several elements are analyzed and compared within the solar interior. Variations in the solar opacity profile due to changes in the Stark widths are shown to be significant and to result mainly due to K-shell lines. In light of the solar opacity problem, the results are compared with the required opacity variations of the present day sun, as imposed by helioseismic and neutrino observations. It is shown that an increase of the line widths res...

  14. Collisionless reconnection: magnetic field line interaction

    Directory of Open Access Journals (Sweden)

    R. A. Treumann

    2012-10-01

    Full Text Available Magnetic field lines are quantum objects carrying one quantum Φ0 = 2πh/e of magnetic flux and have finite radius λm. Here we argue that they possess a very specific dynamical interaction. Parallel field lines reject each other. When confined to a certain area they form two-dimensional lattices of hexagonal structure. We estimate the filling factor of such an area. Anti-parallel field lines, on the other hand, attract each other. We identify the physical mechanism as being due to the action of the gauge potential field, which we determine quantum mechanically for two parallel and two anti-parallel field lines. The distortion of the quantum electrodynamic vacuum causes a cloud of virtual pairs. We calculate the virtual pair production rate from quantum electrodynamics and estimate the virtual pair cloud density, pair current and Lorentz force density acting on the field lines via the pair cloud. These properties of field line dynamics become important in collisionless reconnection, consistently explaining why and how reconnection can spontaneously set on in the field-free centre of a current sheet below the electron-inertial scale.

  15. Flow lines and export lines of Sabalo Gas Field - the engineering of a complex job; Flow lines e export lines de Sabalo - a engenharia da complexidade

    Energy Technology Data Exchange (ETDEWEB)

    Serodio, Conrado Jose Morbach [GDK Engenharia, Salvador, BA (Brazil)

    2003-07-01

    The construction of the natural gas flow lines and export lines system of the Sabalo field, in the far South of Bolivia is an unique job in the pipeline construction area. Its execution is a turning point in terms of engineering and construction technology in this industry. Among the Aguarague Cordillera (mountains), it runs across rocky canyons for more than 5 km, a 2.100 mt long narrow tunnel to overcome the mountains and steep hills along all the ROW length, with a total extension of 70 km, in line pipes ranging from 10'' and 12'' for the flow lines, 28'' for the gas export line and 8' for the condensate line. An integrated construction work plan was settled in order to face and overcome the complex construction situations found in every feet of the pipeline. Four simultaneous work sites were mobilized, 8 independent work fronts, 700 professionals and more than 150 pieces of heavy construction equipment, brought from 3 different countries. Special techniques were adopted also to handle the challenging detail engineering . All in all, the correct conjunction of a sound engineering work, planning, human resources and equipment and the managing flexibility to create alternatives and solutions at the fast pace required by a dynamic work schedule were essential to succeed, in a job with no room for mistakes. The successfully job completion open new possibilities to other challenging projects alike.(author)

  16. Modelling pulsed-power transmission lines

    International Nuclear Information System (INIS)

    Transmission lines in modern pulsed-power machines such as PBFA-II operate at ten or more megavolts with multi-megampere currents. They often have series (voltage) or parallel (current) power addition. In these transmission lines the cathodes emit electrons freely. In addition, perturbations such as plasma opening switches cause additional electrons to be launched into the flow. The large magnetic field due to the transmission line current prevents these electrons from crossing the transmission line to the anode directly, but in most situations electron current flows to the anode after travelling a long distance down the transmission line. Usually these losses occur just before the load or at adder points. Reliable modelling of these lines is important both for design purposes and for use in analyzing data. This paper presents models that can be used for this purposes. The models are primarily based upon known symmetries plus measurable parameters. Comparisons to data, particularly data taken on PBFA-II, are made

  17. Supermassive black holes and spectral emission lines

    International Nuclear Information System (INIS)

    It is widely accepted that active galactic nuclei (AGN) are hosting a supermassive black hole in their center. The supermassive black hole is actively fueled by surrounding gas through an accretion disk, which produces a broad band continuum (from X-ray to radio emission). The hard photons from the accretion disk create the photoionized plasma around the central black hole, which emits a number of broad emission lines. Therefore, one of the signatures of the strong activity in galaxies is the emission of the broad spectral lines (line widths of several 1000 km/s), which are seen only in a fraction of AGN, so called Type 1 AGN. These broad emission lines often show very complex line profiles, usually strongly variable in time. Here we will describe the basic properties of the broad emission lines and how can we use them to derive the properties of the central supermassive black hole, i.e., the mass and spin, or see signatures of supermassive binary black holes

  18. The Four Intersection-and-Difference Model for Line-Line Topological Relations

    Institute of Scientific and Technical Information of China (English)

    DENG Min; LI Zhilin; LI Guangqiang; ZHANG Xuesong

    2007-01-01

    The description of line-line topological relations is still an unsolved issue although much effort has been done. The problem is involved in many practical applications such as spatial query, spatial analysis and cartographic generalization. To develop a sound and effective approach to describe line-line relations, it is first necessary to define the topology of an individual line, i.e., local topology. The concept of connective degree is used for the identification of topological differences in the geometric structure of a line. The general topological definition of a line is given, i.e., endpoints set and interior point set. This definition can be applied to the embedded spaces of different dimensions, whether co-dimension is equal to or larger than zero. On this basis, a generic model called the 4 intersection-and-difference is set up for the description of basic line-line topological relations, upon which a conceptual neighborhood graph is built with consideration of topological distance. It is concluded that the proposed model can represent the property of topological changes, and basic relations between line segments in IR1 and IR2.

  19. Absorption-line measurements of AGN outflows

    Science.gov (United States)

    Fields, Dale L.

    Investigations into the elemental abundances in two nearby active galaxies, the narrow-line Seyfert 1 Markarian 1044 and the Seyfert 1 Markarian 279, are reported. Spectra from three space-based observatories HST, FUSE, and CHANDRA, are used to measure absorption lines in material outflowing from the nucleus. I make multi-wavelength comparisons to better convert the ionic column densities into elemental column densities which can then be used to determine abundances (metallicities). Narrow-line Seyfert 1 galaxies are known to have extreme values of a number of properties compared to active galactic nuclei (AGNs) as a class. In particular, emission-line studies have suggested that NLS1s are unusually metal-rich compared to broad-line AGNs of comparable luminosity. To test these suggestions I perform absorption-line studies on the NLS1 Markarian 1044, a nearby and bright AGN. I use lines of H I, C IV, N V, and O VI to properly make the photoionization correction through the software Cloudy and determine abundances of Carbon, Nitrogen and Oxygen. I find two results. The first is that Markarian 1044 has a bulk metallicity greater than five times solar. The second is that the N/C ratio in Markarian 1044 is consistent with a solar mixture. This is in direct contradiction of extrapolations from local H II regions which state N/ C should scale with bulk metallicity. This implies a different enrichment history in Markarian 1044 than in the Galactic disk. I also report discovery of three new low-redshift Lya forest lines with log N HI >= 12:77 in the spectrum of Markarian 1044. This number is consistent with the 2.6 expected Lya forest lines in the path length to Markarian 1044. I also investigate the CHANDRA X-ray spectrum of Markarian 279, a broad-line Seyfert 1. I use a new code, PHASE, to self-consistently model the entire absorption spectrum simultaneously. Using solely the X-ray spectrum I am able to determine the physical parameters of this absorber to a degree only

  20. Genetic variability among advanced lines of brassica

    International Nuclear Information System (INIS)

    Genetic variability for morphological and biochemical traits among six advanced lines (F10:11) of brassica was studied at The University of Agriculture Peshawar during crop season of 2012-13. These lines were developed through interspecific hybridization. Significant differences at (p=0.01) for plant height, main, pods main raceme-1, pod length, seed yield plant-1 and protein content at (p=0.05) for 100-seed weight, oil content were recorded. The advanced line, AUP-05 produced the maximum seed yield plant-1 (19.73 g), protein content (24.56%), 100-seed weight (0.64 g). Advanced line AUP-04 had the highest erucic acid (50.31%), linolenic acid (10.60%) and was late maturing (179.33). Advanced line AUP-06 produced the high oil content (48.82%). Advanced line AUP-03 produced comparatively longer main raceme (69.32 cm). Environmental variance was smaller than genotypic variance for majority of the traits. Genotypic and phenotypic coefficients of variation ranged from 2.45 to 25.67% and 2.50 to 27.68%, respectively. Heritability was high for majority of the traits. The maximum heritability was recorded for plant height (0.61), main raceme length (0.81), pods main raceme-1 (0.74), seed yield plant-1 (0.86) and protein content (0.77). Moderate heritability was observed for oil (0.58) contents. Heritability for 100-seed weight (0.30) was the lowest. These lines may be released as new improved varieties for specific parameters. (author)

  1. Radio recombination lines from H II regions

    International Nuclear Information System (INIS)

    Radio recombination lines have been observed from forty-six H II regions. The Arecibo 1000-foot radio telescope was used to provide high sensitivity and high angular resolution at 1400 MHz (gain approx. 7.70K/Jy, HPBW = 3:2) and 2372 MHZ (gain approx. 6.30K/Jy, HPBW = 2'). Observations were made at 1400 MHz in the frequency switching mode, and at 2372 MHz in the total power mode. Gaussians were fit to be observed lines to derive velocities, line widths, and line temperatures. From the velocities kinematic distances were derived. For eleven sources H I absorption measurements were also made. The absorption spectra enabled the kinematic distance ambiguity to be resolved for some sources. The absorption spectra themselves were found to have extremely sharp, non-gaussian edges. One explanation for these is a model where the interstellar medium contains many H I cloudlets with T/sub s/less than or equal to 1000K and turbulent velocities less than or equal to 3 km/s. The H I absorption spectrum is then a superposition of many narrow gaussian profiles. It was also found from a comparison of H I absorption velocities with radio recombination line velocities that peculiar motions exist in the interstellar medium with velocities of up to 10 km/s. Using the measured line temperatures and continuum temperatures, estimates were desired of emission measures, electron temperatures, and electron densities, using a non-LTE analysis. Non-LTE effects were important only for the hottest and densest H II regions. The non-LTE calculations were checked through a comparison derivation of electron temperatures using hydrogen beta lines

  2. Newly Identified Rydberg Emission Lines in Novae

    Science.gov (United States)

    Lynch, David K.; Rudy, R. J.; Bernstein, L. S.

    2008-09-01

    Newly Identified Rydberg Emission Lines in Novae David K. Lynch, Richard. J. Rudy (The Aerospace Corporation) & Lawrence S. Bernstein (Spectral Sciences, Inc.) Novae spectra in the near infrared frequently show a set of six emission lines that have not been positively identified (Williams, Longmore, & Geballe 1996, MNRAS, 279, 804; Lynch et al. 2001, AJ, 122, 2013; Rudy et al. 2002 ApJ, 573, 794; Lynch et al. 2004 Astron. J. 127, 1089-1097). These lines are at 0.8926, 1.1114, 1.1901, 1.5545, 2.0996 and 2.425 µm ± 0.005 µm. Krautter et al. (1984 A&A 137, 304) suggested that three of the lines were due to rydberg (hydrogenic) transitions in an unspecified atomic species that was in the 4th or 5th ionization stage (core charge = 4 & 5). We believe that Krautter et al.'s explanation is correct based on 4 additional lines that we have identified in the visible and near infrared spectrum of V723 Cassiopeiae. The observed Rydberg lines appear to originate from high angular momentum states with negligible quantum defects. The species cannot be determined with any certainty because in rydberg states, the outer electron sees a nucleus shielded by the inner electrons and together the inner atom appears to have a charge of +1, like hydrogen. As a result, the atom looks hydrogenic and species such as CV, NV, OV, MgV, SiV, etc. have their rydberg transitions at very similar wavelengths. All the lines represent permitted transitions, most likely formed by recombination. Atoms with core charges 4, 5 & 6 are rarely seen in the astrophysical environment because an extremely hot radiation field is necessary to ionize them. Thermonuclear runaways on the surface of a white dwarf can reach millions of degrees K, and thus there are enough X-ray photons available to achieve the necessary high ionization levels.

  3. Local Group Galaxy Emission-line Survey

    Science.gov (United States)

    Blaha, Cindy; Baildon, Taylor; Mehta, Shail; Garcia, Edgar; Massey, Philip; Hodge, Paul W.

    2015-01-01

    We present the results of the Local Group Galaxy Emission-line Survey of Hα emission regions in M31, M33 and seven dwarf galaxies in (NGC6822, IC10, WLM, Sextans A and B, Phoenix and Pegasus). Using data from the Local Group Galaxy Survey (LGGS - see Massey et al, 2006), we used continuum-subtracted Ha emission line images to define emission regions with a faint flux limit of 10 -17 ergs-sec-1-cm-2above the background. We have obtained photometric measurements for roughly 7450 Hα emission regions in M31, M33 and five of the seven dwarf galaxies (no regions for Phoenix or Pegasus). Using these regions, with boundaries defined by Hα-emission flux limits, we also measured fluxes for the continuum-subtracted [OIII] and [SII] images and constructed a catalog of Hα fluxes, region sizes and [OIII]/ Hα and [SII]/ Hα line ratios. The HII region luminosity functions and size distributions for the spiral galaxies M31 and M33 are compared with those of the dwarf galaxies NGC 6822 and IC10. For M31 and M33, the average [SII]/ Hα and [OIII]/ Hα line ratios, plotted as a function of galactocentric radius, display a linear trend with shallow slopes consistent with other studies of metallicity gradients in these galaxies. The galaxy-wide averages of [SII]/ Hα line ratios correlate with the masses of the dwarf galaxies following the previously established dwarf galaxy mass-metallicity relationship. The slope of the luminosity functions for the dwarf galaxies varies with galaxy mass. The Carleton Catalog of this Local Group Emission-line Survey will be made available on-line.

  4. Linear Polarization Measurements of Chromospheric Emission Lines

    Science.gov (United States)

    Sheeley, N. R., Jr.; Keller, C. U.

    2003-01-01

    We have used the Zurich Imaging Stokes Polarimeter (ZIMPOL I) with the McMath-Pierce 1.5 m main telescope on Kitt Peak to obtain linear polarization measurements of the off-limb chromosphere with a sensitivity better than 1 x 10(exp -5). We found that the off-disk observations require a combination of good seeing (to show the emission lines) and a clean heliostat (to avoid contamination by scattered light from the Sun's disk). When these conditions were met, we obtained the following principal results: 1. Sometimes self-reversed emission lines of neutral and singly ionized metals showed linear polarization caused by the transverse Zeeman effect or by instrumental cross talk from the longitudinal Zeeman effect in chromospheric magnetic fields. Otherwise, these lines tended to depolarize the scattered continuum radiation by amounts that ranged up to 0.2%. 2. Lines previously known to show scattering polarization just inside the limb (such as the Na I lambda5889 D2 and the He I lambda5876 D3 lines) showed even more polarization above the Sun's limb, with values approaching 0.7%. 3. The O I triplet at lambda7772, lambda7774, and lambda7775 showed a range of polarizations. The lambda7775 line, whose maximum intrinsic polarizability, P(sub max), is less than 1%, revealed mainly Zeeman contributions from chromospheric magnetic fields. However, the more sensitive lambda7772 (P(sub max) = 19%) and lambda7774 (P(sub max) = 29%) lines had relatively strong scattering polarizations of approximately 0.3% in addition to their Zeeman polarizations. At times of good seeing, the polarization spectra resolve into fine structures that seem to be chromospheric spicules.

  5. Exact trajectory in semiclassical line broadening and line shifting calculation test for H2-He Q(1) line

    International Nuclear Information System (INIS)

    The semiclassical model RB (Robert, D. and Bonamy, J. (Journal de Physique (Paris), 1979, 40, 923 for calculation of line width and line shift has been used in many applications. It contains an approximate 'parabolic' trajectory. Bykov, A.D. et al, Atmospheric and Oceanic Optics (1992) 5, 587, have recently proposed an analytical expression for an exact treatment of the classical path. This paper analyses the consequence of introducing the exact trajectory within the RB model for the H2-He Q(1) line chosen as a simple test. Moreover, a comparison with results of exact close-coupling calculations is also given for this molecular system. (Copyright (c) 1999 Elsevier Science B.V., Amsterdam. All rights reserved.)

  6. Oryza Tag Line, a phenotypic mutant database for the Genoplante rice insertion line library

    OpenAIRE

    Larmande, Pierre; Gay, Celine; Lorieux, Mathias; Perin, Christophe; Bouniol, Matthieu; Droc, Gaëtan; Sallaud, Christophe; Perez, Pascual; Barnola, Isabelle; Biderre-Petit, Corinne; Martin, Jérôme; Morel, Jean-Benoit; Johnson, Alexander A. T.; Bourgis, Fabienne; Ghesquière, Alain

    2008-01-01

    International audience To organize data resulting from the phenotypic characterization of a library of 30,000 T-DNA enhancer trap (ET) insertion lines of rice (Oryza sativa L cv. Nipponbare), we developed the Oryza Tag Line (OTL) database (http://urgi.versailles.inra.fr/OryzaTagLine/). OTL structure facilitates forward genetic search for specific phenotypes, putatively resulting from gene disruption, and/or for GUSA or GFP reporter gene expression patterns, reflecting ET-mediated endogenou...

  7. First on-line results from the CRIS (Collinear Resonant Ionisation Spectroscopy) beam line at ISOLDE

    International Nuclear Information System (INIS)

    The CRIS (Collinear Resonant Ionisation Spectroscopy) experiment at the on-line isotope separator facility, ISOLDE, CERN, has been constructed for high-sensitivity laser spectroscopy measurements on radioactive isotopes. The technique determines the magnetic dipole and electric quadrupole moments, nuclear spin and changes in mean-square charge radii of exotic nuclei via measurement of their hyperfine structures and isotope shifts. In November 2011 the first on-line run was performed using the CRIS beam line, when the hyperfine structure of 207Fr was successfully measured. This paper will describe the technique and experimental setup of CRIS and present the results from the first on-line experiment.

  8. FFAG Beam Line for nuPIL - Neutrinos from PIon Beam Line

    Energy Technology Data Exchange (ETDEWEB)

    Lagrange, Jean-Baptiste [Fermilab; Pasternak, Jaroslaw [Rutherford; Bross, Alan [Fermilab; Liu, Ao [Fermilab; Appleby, Robert [Cockcroft Inst. Accel. Sci. Tech.; Tygier, Sam [Cockcroft Inst. Accel. Sci. Tech.

    2016-06-01

    The Long Baseline Neutrino Facilities (LBNF) program aims to deliver a neutrino beam for the Deep Underground Neutrino Experiment (DUNE). The current baseline for LBNF is a conventional magnetic horn and decay pipe system. Neutrinos from PIon beam Line (nuPIL) is a part of the optimization effort to optimize the LBNF. It consists of a pion beam line after the horn to clean the beam of high energy protons and wrong-sign pions before transporting them into a decay beam line, where instrumentation could be implemented. This paper focuses on the FFAG solution for this pion beam line. The resulting neutrino flux is also presented.

  9. Speed-dependent spectral line profile including line narrowing and mixing

    Science.gov (United States)

    Kochanov, Victor P.

    2016-07-01

    A line profile model was developed that accounts for all essential underlying physical mechanisms. The model is based on the quantum-mechanical collision integral kernel calculated for intermolecular interaction potentials ∝r-n with n=3…6 where r is the distance between colliding molecules. It was shown that collisions of molecules with scattering on classical small angles flatten the line profile. The relative flattening reaches 10% for n=3 and has a smaller value, ~2%, for n=6 in conditions of inhomogeneous line broadening. An algebraic expression for the line profile was obtained, which allows processing recorded spectra with preliminary estimation and constraint of some of the profile's parameters.

  10. Nonlinear Dynamic Analysis of Multi-component Mooring Lines Incorporating Line-seabed Interaction

    Directory of Open Access Journals (Sweden)

    V.J. Kurian

    2013-07-01

    Full Text Available In this study, a deterministic approach for the dynamic analysis of a multi-component mooring line was formulated. The floater motion responses were considered as the mooring line upper boundary conditions while the anchored point was considered as pinned. Lumped parameter approach was adopted for the mooring line modelling. The forces considered were the submerged weights of mooring/attachment, physical/added inertia, line tension, fluid/line relative drag forces and line/seabed reactive forces. The latter interactions were modelled assuming that the mooring line rested on an elastic dissipative foundation. An iterative procedure for the dynamic analysis was developed and results for various mooring lines partially lying on different soils were obtained and validated by conducting a comparative study against published results. Good agreement between numerical and published experimental results was achieved. The contribution of the soil characteristics of the seabed to the dynamic behaviour of mooring line was investigated for different types of soil and reported.

  11. Methotrexate diethyl ester-loaded lipid-core nanocapsules in aqueous solution increased antineoplastic effects in resistant breast cancer cell line

    Directory of Open Access Journals (Sweden)

    Yurgel VC

    2014-03-01

    Full Text Available Virginia C Yurgel,1,* Catiuscia P Oliveira,2,* Karine R Begnini,1 Eduarda Schultze,1 Helena S Thurow,1 Priscila MM Leon,1 Odir A Dellagostin,1 Vinicius F Campos,1 Ruy CR Beck,2 Silvia S Guterres,2 Tiago Collares,1 Adriana R Pohlmann,2–4 Fabiana K Seixas11Programa de Pós-Graduação em Biotecnologia (PPGB, Grupo de Pesquisa em Oncologia Celular e Molecular, Laboratório de Genômica Funcional, Biotecnologia/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil; 2Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; 3Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; 4Centro de Nanociência e Nanotecnologia, CNANO-UFRGS, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil*These authors contributed equally to this workAbstract: Breast cancer is the most frequent cancer affecting women. Methotrexate (MTX is an antimetabolic drug that remains important in the treatment of breast cancer. Its efficacy is compromised by resistance in cancer cells that occurs through a variety of mechanisms. This study evaluated apoptotic cell death and cell cycle arrest induced by an MTX derivative (MTX diethyl ester [MTX(OEt2] and MTX(OEt2-loaded lipid-core nanocapsules in two MTX-resistant breast adenocarcinoma cell lines, MCF-7 and MDA-MB-231. The formulations prepared presented adequate granulometric profile. The treatment responses were evaluated through flow cytometry. Relying on the mechanism of resistance, we observed different responses between cell lines. For MCF-7 cells, MTX(OEt2 solution and MTX(OEt2-loaded lipid-core nanocapsules presented significantly higher apoptotic rates than untreated cells and cells incubated with unloaded lipid-core nanocapsules. For MDA-MB-231

  12. Line-scanning, stage scanning confocal microscope

    Science.gov (United States)

    Carucci, John A.; Stevenson, Mary; Gareau, Daniel

    2016-03-01

    We created a line-scanning, stage scanning confocal microscope as part of a new procedure: video assisted micrographic surgery (VAMS). The need for rapid pathological assessment of the tissue on the surface of skin excisions very large since there are 3.5 million new skin cancers diagnosed annually in the United States. The new design presented here is a confocal microscope without any scanning optics. Instead, a line is focused in space and the sample, which is flattened, is physically translated such that the line scans across its face in a direction perpendicular to the line its self. The line is 6mm long and the stage is capable of scanning 50 mm, hence the field of view is quite large. The theoretical diffraction-limited resolution is 0.7um lateral and 3.7um axial. However, in this preliminary report, we present initial results that are a factor of 5-7 poorer in resolution. The results are encouraging because they demonstrate that the linear array detector measures sufficient signal from fluorescently labeled tissue and also demonstrate the large field of view achievable with VAMS.

  13. An Atlas of Starburst Galaxy Emission Lines

    Science.gov (United States)

    Meskhidze, Helen; Richardson, Chris T.; Ferland, Gary J.

    2015-01-01

    Recent observations of high ionization lines (e.g. [Ne V] and He II λ4686) from star-forming regions have prompted a need to study the production mechanisms of these high ionization lines. Our study addresses the following questions: 1. What are specific cloud parameters that influence the strength of emission lines in starburst galaxies? 2. How can these parameters be tuned in simulations to match observations? We adopt the locally optimally emitting cloud model, a model previously used to study AGN, for our study of star-forming regions. We present the results of hundreds of photoionization simulations spanning 15 orders of magnitude in hydrogen ionizing photon flux and 10 orders of magnitude in hydrogen density. We vary both properties of the starbursts (SEDs, evolutionary histories, ages), as well as cloud properties (such as the abundances and metallicity), tracking nearly 100 emission lines ranging from the UV to the near IR. Finally, we compare these results to the results of other studies on star-forming regions. The results of our photoionization calculations should prove useful for the analysis of starburst galaxy emission-line data.

  14. Investigating Starburst Galaxy Emission Line Equivalent Widths

    Science.gov (United States)

    Meskhidze, Helen; Richardson, Chris T.

    2016-01-01

    Modeling star forming galaxies with spectral synthesis codes allows us to study the gas conditions and excitation mechanisms that are necessary to reproduce high ionization emission lines in both local and high-z galaxies. Our study uses the locally optimally-emitting clouds model to develop an atlas of starburst galaxy emission line equivalent widths. Specifically, we address the following question: What physical conditions are necessary to produce strong high ionization emission lines assuming photoionization via starlight? Here we present the results of our photoionization simulations: an atlas spanning 15 orders of magnitude in ionizing flux and 10 orders of magnitude in hydrogen density that tracks over 150 emission lines ranging from the UV to the near IR. Each simulation grid contains ~1.5x104 photoionization models calculated by supplying a spectral energy distribution, grain content, and chemical abundances. Specifically, we will be discussing the effects on the emission line equivalent widths of varying the metallicity of the cloud, Z = 0.2 Z⊙ to Z = 5.0 Z⊙, and varying the star-formation history, using the instantaneous and continuous evolution tracks and the newly released Starburst99 Geneva rotation tracks.

  15. Robust atomistic calculation of dislocation line tension

    Science.gov (United States)

    Szajewski, B. A.; Pavia, F.; Curtin, W. A.

    2015-12-01

    The line tension Γ of a dislocation is an important and fundamental property ubiquitous to continuum scale models of metal plasticity. However, the precise value of Γ in a given material has proven difficult to assess, with literature values encompassing a wide range. Here results from a multiscale simulation and robust analysis of the dislocation line tension, for dislocation bow-out between pinning points, are presented for two widely-used interatomic potentials for Al. A central part of the analysis involves an effective Peierls stress applicable to curved dislocation structures that markedly differs from that of perfectly straight dislocations but is required to describe the bow-out both in loading and unloading. The line tensions for the two interatomic potentials are similar and provide robust numerical values for Al. Most importantly, the atomic results show notable differences with singular anisotropic elastic dislocation theory in that (i) the coefficient of the \\text{ln}(L) scaling with dislocation length L differs and (ii) the ratio of screw to edge line tension is smaller than predicted by anisotropic elasticity. These differences are attributed to local dislocation core interactions that remain beyond the scope of elasticity theory. The many differing literature values for Γ are attributed to various approximations and inaccuracies in previous approaches. The results here indicate that continuum line dislocation models, based on elasticity theory and various core-cut-off assumptions, may be fundamentally unable to reproduce full atomistic results, thus hampering the detailed predictive ability of such continuum models.

  16. Inspection and Monitoring Techniques for Power Lines

    Institute of Scientific and Technical Information of China (English)

    DAI Kaoshan; CHEN Shenen

    2011-01-01

    Structural assessment is prerequisite for proper maintenance of civil infrastructure.In the begining of this paper, modern inspection and monitoring methods are briefly reviewed.Experiences in applying imagebased methods for highway bridge inspection are described shortly afterward.Studies are then extended to explore technologies for power delivery infrastructure evaluation.Typical power line components are first introduced.Structural analyses show complicated coupling phenomena in the power line system; and its vulnerability is intensified by extreme environment or human induced events.As a main interest, the state-of-art of power line inspection is summarized.Both visual observations and inspections assisted with novel techniques are presented.Real time monitoring of the power line is also investigated in this paper.Technologies that have potentials for monitoring power cables, insulators, and support structures are identified.A conceptual integrated design is proposed by the authors through combining innovative inspection with promising monitoring methods to ensure a sustainable, smart power line.

  17. Transfer line tests take centre stage

    CERN Multimedia

    Katarina Anthony

    2014-01-01

    Last weekend, proton beams came knocking on the LHC's door. Shooting from the SPS and into the two LHC transfer lines, the proton beams were dumped just short of entering the accelerator.   The upper plot shows the trajectory of the first TI2 beam, which reached the end of the transfer line in a single attempt after 18 months of technical stop. Below, a smoother beam trajectory in TI2 after some corrections. For the first time since Run 1, the SPS to LHC transfer lines (TI8 and TI2) transported proton beams just short of the LHC. "We tested the beam instrumentation, the devices that measure the beam intensity, transverse beam profile, position and losses, as well as the beam collimators along the transfer lines," says Reyes Alemany Fernandez, the engineer in charge of the LHC. "We were also able to spot possible bottle necks in the beam trajectory and to perform the first optics measurements." Once the beams arrived at the transfer line beam dumps...

  18. Iron and zinc availability in maize lines

    Directory of Open Access Journals (Sweden)

    Valéria Aparecida Vieira Queiroz

    2011-09-01

    Full Text Available The aim of this study was to characterize the Zn and Fe availability by phytic acid/Zn and phytic acid/Fe molar ratios, in 22 tropical maize inbred lines with different genetic backgrounds. The Zn and Fe levels were determined by atomic absorption spectrophotometry and the P through colorimetry method. Three screening methods for phytic acid (Phy analysis were tested and one, based on the 2,2'-bipyridine reaction, was select. There was significant variability in the contents of zinc (17.5 to 42 mg.kg-1, iron (12.2 to 36.7 mg.kg-1, phosphorus (230 to 400 mg.100 g-1, phytic acid (484 to 1056 mg.100 g-1, phytic acid P (140 to 293 mg.100 g-1 and available-P (43.5 to 199.5 mg.100 g-1, and in the available-P/total-P ratio (0.14 to 0.50, Phy/Zn (18.0 to 43.5 and Phy/Fe (16.3 to 45.5 molar ratios. Lines 560977, 560978 and 560982 had greater availability of Zn and lines 560975, 560977, 561010 and 5610111 showed better Fe availability. Lines 560975, 560977 and 560978 also showed better available-P/total-P ratio. Thus, the lines 560975, 560977 and 560978 were considered to have the potential for the development of cultivars of maize with high availability of Fe and/or Zn.

  19. Speckle reduction methods for laser line gages

    Science.gov (United States)

    Harding, Kevin G.

    1997-12-01

    Speckle caused by the use of laser sources is a well known phenomena. For some applications, the presence of the speckle is used as part of the method, but in others it is purely a source of noise. In the case of line based laser gages, speckle is typically of considerable concern. Certainly, using white light sources or LEDs with short coherence is one way around this problem, but such methods also loose some of the valuable properties of laser line projection such as very narrow lines, the ability to create multiple lines by diffraction, and high signal to background through the use of bandpass filters to view only the laser wavelength. There have been a number of valuable tools introduced that help reduce the problem of speckle from laser sources, without giving up all the advantages of the laser itself. This paper reviews the pros and cons of a number of these methods, and suggests a specific set of tools that are specific to laser line projection.

  20. Evolution of [O III] λ5007 Emission-line Profiles in Narrow Emission-line Galaxies

    Science.gov (United States)

    Wang, J.; Mao, Y. F.; Wei, J. Y.

    2011-11-01

    The active galactic nucleus (AGN)-host co-evolution issue is investigated here by focusing on the evolution of the [O III] λ5007 emission-line profile. A large sample of narrow emission-line galaxies is selected from the Max-Planck Institute for Astrophysics/Johns Hopkins University Sloan Digital Sky Survey DR7 catalog to simultaneously measure both the [O III] line profile and circumnuclear stellar population in an individual spectrum. By requiring that (1) the [O III] line signal-to-noise ratio is larger than 30 and (2) the [O III] line width is larger than the instrumental resolution by a factor of two, our sample is narrowed down to 2333 Seyfert galaxies/LINERs (AGNs), 793 transition galaxies, and 190 star-forming galaxies. In addition to the commonly used profile parameters (i.e., line centroid, relative velocity shift, and velocity dispersion), two dimensionless shape parameters, skewness and kurtosis, are used to quantify the line shape deviation from a pure Gaussian function. We show that the transition galaxies are systematically associated with narrower line widths and weaker [O III] broad wings than the AGNs, which implies that the kinematics of emission-line gas are different in the two kinds of objects. By combining the measured host properties and line shape parameters, we find that the AGNs with stronger blue asymmetries tend to be associated with younger stellar populations. However, a similar trend is not identified in the transition galaxies. The failure likely results from a selection effect in which the transition galaxies are systematically associated with younger stellar populations than the AGNs. The evolutionary significance revealed here suggests that both narrow-line region kinematics and outflow feedback in AGNs co-evolve with their host galaxies.