WorldWideScience

Sample records for legislation analytical study

  1. Analytical Models of Legislative Texts for Muslim Scholars

    Science.gov (United States)

    Alwan, Ammar Abdullah Naseh; Yusoff, Mohd Yakubzulkifli Bin Mohd; Al-Hami, Mohammad Said M.

    2011-01-01

    The significance of the analytical models in traditional Islamic studies is that they contribute in sharpening the intellectual capacity of the students of Islamic studies. Research literature in Islamic studies has descriptive side predominantly; the information is gathered and compiled and rarely analyzed properly. This weakness is because of…

  2. Legislation.

    Science.gov (United States)

    Henderson, Carol C.; Heanue, Anne A.; Adler, Allan R.

    1998-01-01

    Two reports discuss legislation and regulations affecting libraries in 1997, (funding, government information, intellectual freedom and property, Next Generation Internet, postal rates, telecommunications) and publishing in 1997 (intellectual property, freedom of expression, new technology, postal rates). (PEN)

  3. Legislative drafting on health as a new field of study

    Directory of Open Access Journals (Sweden)

    ROMERO, Luiz Carlos

    2015-07-01

    Full Text Available This study includes the results of a survey and analysis on the increase in the number and quality of studies on healthcare legislation in recent years. This increase is likely the conse-quence of both the development of the Health Law in Brazil and the growth and diversifi-cation in legal council activities in Brazil’s legislative houses. It is concluded that there has been recent development in this field of study and in the scientific production in this area, which is characterized as an increase in the number of studies and publications with two main focuses: the content of laws and the influence, on the results of the legislative process, of the constitutional and procedural laws that regulate the legislative process and reinforce the legislative power of the Executive Branch.

  4. Analytical review on the major Issues of the new bankruptcy (law)legislation

    Institute of Scientific and Technical Information of China (English)

    WANG Xinxin

    2006-01-01

    The bankruptcy law is an integral part of the legal system of societies with market economy.After many years of preparation,the draft of the new bankruptcy law in China was submitted to the Standing Committee of the National People's Congress twice and is waiting for the third approval to be enacted.Drawing on the experiences of other countries,the new bankruptcy law tries to carry out the concepts of market economy,eliminate the residual influences of planned economy that existed in the old law,protect lawful rights and interests of creditors and debtors,and maintain the order of socialist market economy.This thesis analyzes and researches on the major and controversial issues that emerged during the legislation of the new bankruptcy law from the aspects such as the principle of the legislation,criteria of bankruptcy,preservation or abolishment of policy-related bankruptcy,protection of the employees' fights and interests of bankrupt enterprises,the creditors' committee system,the trustee system,reorganization system to prevent bankruptcy,and the legal obligations of bankrupt,and so on.It also gives a comprehensive introduction to the innovation and modification of the new bankruptcy law.

  5. The new pharmacovigilance legislation and impact on observational studies

    Directory of Open Access Journals (Sweden)

    Sinem Ezgi Gülmez

    2013-05-01

    Full Text Available BACKGROUND: After the publication of the Regulation (EU No 1235/2010 and Directive2010/84/EU on 31st of December 2010, the new legislation on pharmacovigilance came intooperation for the better protection of public health through a further strengthened EU systemfor medicines safety.REMARKS: The main changes include the new definition of adverse reactions, Eudravigilancebecoming the single receipt point for all pharmacovigilance information through theEU, the Pharmacovigilance Risk Assessment Committee, and strengthened PASS/PAES, andrequirement of a risk management planning for all new medicines. The possible increase inPA(ESS may be a concern in terms of access to appropriate data and so obtaining necessaryauthorisations without delays.CONCLUSION: The new legislation will provide good vigilance practice standards with increasedtransparency of pharmacovigilance data. The communication will improve with theinvolvement of patient and public. With better access to real-life data, better protection ofpublic health will be ensured.

  6. The studies and legislation on radiation disinfestation, Taiwan

    Science.gov (United States)

    Fu, Ying-Kai; Chang, Ming-Shia; Hu, Tsan

    The studies of radiation disinfestation at the Institute of Nuclear Energy Research cover four harmful cereal insects, tobacco beetles, and dry beam insects etc. The four most harmful insects of stored rice in Taiwan are Sitophilus zeamais Mostschulsky. Rhyzopertha dominica F. Tribolitum custaneum Herbst, and Sitotroga cerealella Oliver. Adults, eggs or larvae of these insect pests were irradiated by 60Co gamma rays. The results show that 400 Gy of gamma irradiation could completely control these four species of pests in stored rice. Tobacco beetle ( Lasioderma serricorne F.) is the most serious pest of stored tobaccos in Taiwan. The aim of this study is to use 60Co gamma ray irradiation to control tabacco beetles of stored tobaccos. The results are (1) the sterility dose of adults irradiated by 60Co gamma rays is 96 Gy, with an immediate lethal dose of 5 kGy and a total death 18 days post-irradiation at 2 kGy; (2) the immediate lethal dose of larvae is 4 kGy, with a nonemerging dose of 2 kGy; (3) adults could not emerge from the pupae irradiated by 60Co gamma rays at 2 kGy; (4) larvae could not be hatched from the oval stage irradiated by 250 Gy. In conclusion, 60Co gamma ray irradiation of 2 kGy could be applied to stored tobaccos to control tobacco beetles with total disinfestation of larvae and adults and complete nonappearence of F 1 generation 18 days post-irradiation. The cowpea weevil ( Callosobruchus chinensis L.) was one of the most serious pests of stored dry beans in Taiwan. It caused damage during larval stage. Treatment of gamma irradiation with 10 Gy to eggs of the cowpea weevil prevented their hatching; a dose of 20 Gy applied to larvae prevented their development. The sterility dosage aginst the pupae and adult were 20 and 50 Gy, respectively. It is concluded that a 50 Gy gamma irradiation could be applied to stored dry beans to control the cowpea weevils. The food irradiation legislation has been approved by the Department of Health, Taiwan, R

  7. POLITICAL REPRESENTATION OF WOMAN: A Study Of Women???s Role In The Legislative

    OpenAIRE

    GUSTIANA A KAMBO; PUSPARIDA SYAHDAN

    2014-01-01

    -- This study aimed to understand the complexity of the dynamics political representation in the legislative board which is intended to determine how the political representation of women in legislative board, whether the political representation in the form of role running as much as possible or the representation of cultural obstacles patriakri.

  8. Equality, Legal Certainty and Tax Legislation in the Netherlands
    Fundamental Legal Principles as Checks on Legislative Power: A Case Study

    Directory of Open Access Journals (Sweden)

    Hans Gribnau

    2013-03-01

    Full Text Available Fundamental legal principles may function as a check on legislative power protecting citizens against arbitrary interferences with their liberty. This contribution deals with the principle of equality and the principle of certainty. First, the testing of legislation against the principle of equality is presented as a case study of constitutional review. In the Netherlands, the constitutional dialogue between the legislator and the Dutch Supreme Court revolving around the principle of equality demonstrates a fair amount of subtle details. As a result, constitutional review can hardly be called an all or nothing affair.Secondly, retroactive tax legislation is dealt with. The legislator does seem to take the principle of legal certainty, another fundamental legal principle, quite seriously, although no testing of statutory legislation is possible by the courts. With regard to retroactive tax legislation the Government has committed itself in a memorandum, requested by Parliament, to adhere to rules of conduct with regard to different situations where it deems retroactive tax legislation to be justified. Thus, a soft law instrument facilitates a dialogue between different partners in the business of law-making.

  9. Equality, Legal Certainty and Tax Legislation in the NetherlandsFundamental Legal Principles as Checks on Legislative Power: A Case Study

    Directory of Open Access Journals (Sweden)

    Hans Gribnau

    2013-03-01

    Full Text Available Fundamental legal principles may function as a check on legislative power protecting citizens against arbitrary interferences with their liberty. This contribution deals with the principle of equality and the principle of certainty. First, the testing of legislation against the principle of equality is presented as a case study of constitutional review. In the Netherlands, the constitutional dialogue between the legislator and the Dutch Supreme Court revolving around the principle of equality demonstrates a fair amount of subtle details. As a result, constitutional review can hardly be called an all or nothing affair.Secondly, retroactive tax legislation is dealt with. The legislator does seem to take the principle of legal certainty, another fundamental legal principle, quite seriously, although no testing of statutory legislation is possible by the courts. With regard to retroactive tax legislation the Government has committed itself in a memorandum, requested by Parliament, to adhere to rules of conduct with regard to different situations where it deems retroactive tax legislation to be justified. Thus, a soft law instrument facilitates a dialogue between different partners in the business of law-making.

  10. A Study on the Korea Database Industry Promotion Act Legislation

    Directory of Open Access Journals (Sweden)

    Bae, Seoung-Hun

    2013-09-01

    Full Text Available The Database Industry Promotion Act was proposed at the National Assembly plenary session on July 26, 2012 and since then it has been in the process of enactment in consultation with all the governmental departments concerned. The recent trend of economic globalization and smart device innovation suggests a new opportunity and challenges for all industries. The database industry is also facing a new phase in an era of smart innovation. Korea is in a moment of opportunity to take an innovative approach to promoting the database industry. Korea should set up a national policy to promote the database industry for citizens, government, and research institutions, as well as enterprises. Above all, the Database Industry Promotion Act could play a great role in promoting the social infrastructure to enhance the capacity of small and medium-sized enterprises. This article discusses the background of the development of the Database Industry Promotion Act and its legislative processes in order to clarify its legal characteristics, including the meaning of the act. In addition, this article explains individual items related to the overall structure of the Database Industry Promotion Act. Finally, this article reviews the economic effects of the database industry for now and the future.

  11. Analytical Study of Oxalates Coprecipitation

    Directory of Open Access Journals (Sweden)

    Liana MARTA

    2003-03-01

    Full Text Available The paper deals with the establishing of the oxalates coprecipitation conditions in view of the synthesis of superconducting systems. A systematic analytical study of the oxalates precipitation conditions has been performed, for obtaining superconducting materials, in the Bi Sr-Ca-Cu-O system. For this purpose, the formulae of the precipitates solubility as a function of pH and oxalate excess were established. The possible formation of hydroxo-complexes and soluble oxalato-complexes was taken into account. A BASIC program was used for tracing the precipitation curves. The curves of the solubility versus pH for different oxalate excess have plotted for the four oxalates, using a logaritmic scale. The optimal conditions for the quantitative oxalate coprecipitation have been deduced from the diagrams. The theoretical curves were confirmed by experimental results. From the precursors obtained by this method, the BSCCO superconducting phases were obtained by an appropriate thermal treatment. The formation of the superconducting phases was identified by X-ray diffraction analysis.

  12. Impact of Scotland's smoke-free legislation on pregnancy complications: retrospective cohort study.

    Directory of Open Access Journals (Sweden)

    Daniel F Mackay

    Full Text Available BACKGROUND: Both active smoking and environmental tobacco smoke exposure are associated with pregnancy complications. In March 2006, Scotland implemented legislation prohibiting smoking in all wholly or partially enclosed public spaces. The aim of this study was to determine the impact of this legislation on preterm delivery and small for gestational age. METHODS AND FINDINGS: We conducted logistic regression analyses using national administrative pregnancy data covering the whole of Scotland. Of the two breakpoints tested, 1 January 2006 produced a better fit than the date when the legislation came into force (26 March 2006, suggesting an anticipatory effect. Among the 716,941 eligible women who conceived between August 1995 and February 2009 and subsequently delivered a live-born, singleton infant between 24 and 44 wk gestation, the prevalence of current smoking fell from 25.4% before legislation to 18.8% after legislation (p<0.001. Three months prior to the legislation, there were significant decreases in small for gestational age (-4.52%, 95% CI -8.28, -0.60, p = 0.024, overall preterm delivery (-11.72%, 95% CI -15.87, -7.35, p<0.001, and spontaneous preterm labour (-11.35%, 95% CI -17.20, -5.09, p = 0.001. In sub-group analyses, significant reductions were observed among both current and never smokers. CONCLUSIONS: Reductions were observed in the risk of preterm delivery and small for gestational age 3 mo prior to the introduction of legislation, although the former reversed partially following the legislation. There is growing evidence of the potential for tobacco control legislation to have a positive impact on health.

  13. 1982 Aleutian Islands salmon stock assessment study: Legislative report

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report summarizes a comprehensive research study of the Aleutian Islands salmon resources in 1982. The study encompassed the area west of Unimak Pass to Attu...

  14. Breast Density Legislation in New England: A Survey Study of Practicing Radiologists.

    Science.gov (United States)

    Lourenco, Ana P; DiFlorio-Alexander, Roberta M; Slanetz, Priscilla J

    2017-10-01

    This study aimed to assess radiologists' knowledge about breast density legislation as well as perceived practice changes resulting from the enactment of breast density legislation. This is an institutional review board-exempt anonymous email survey of 523 members of the New England Roentgen Ray Society. In addition to radiologist demographics, survey questions addressed radiologist knowledge of breast density legislation, knowledge of breast density as a risk factor for breast cancer, recommendations for supplemental screening, and perceived practice changes resulting from density notification legislation. Of the 523 members, 96 responded, yielding an 18% response rate. Seventy-three percent of respondents practiced in a state with breast density legislation. Sixty-nine percent felt that breast density notification increased patient anxiety about breast cancer, but also increased patient (74%) and provider (66%) understanding of the effect of breast density on mammographic sensitivity. Radiologist knowledge of the relative risk of breast cancer when comparing breasts of different density was variable. Considerable confusion and controversy regarding breast density persists, even among practicing radiologists. Copyright © 2017 The Association of University Radiologists. Published by Elsevier Inc. All rights reserved.

  15. Development in theoretical study and practice of library legislation in China

    Institute of Scientific and Technical Information of China (English)

    LI; Guoxin; XU; Shan; LIU; Xuan; WANG; Xuan

    2008-01-01

    One of the most outstanding characteristics of library legislation in China is that theoretical research and legislative practice are mutually reinforcing,making important issues and basic rules and regulations closely associated with legislation and the research focus.A national library law is currently being enacted while several local library legislations have already seen fruitful results.In the enactment of"Regulations for the Protection of Information Network Dissemination Rights",the library professional participated for the first time in enacting a national copyright law,which led to unprecedented flourishing of library activities and copyright studies.The promulgation of another legal framework,"Government Information Disclosure Regulations"further advanced the research on related issues and pushed forward government information services in public libraries in the same way.A new landmark for library legislation in recent years is the promulgation of"Guidelines for Land Utilization for Public Library Construction"and"Public Library Construction Standards",while the framing of"Rules of Professional Ethics for Librarians in China(On trial)"and the"Library Service Manifesto"give indication that a framework of self-disciplinary measures of library professionals is established.

  16. Legislator Uses of Public Performance Reports: Findings from a Five-Year Study

    Science.gov (United States)

    McDavid, James C.; Huse, Irene

    2012-01-01

    A key assumption in efforts to implement and improve cross-government public reporting systems is that legislators will make use of the performance information to enhance accountability and improve program and policy effectiveness. This five-year study is an assessment of expectations and actual uses of annual performance reports by elected…

  17. A New Method to Study Analytic Inequalities

    Directory of Open Access Journals (Sweden)

    Xiao-Ming Zhang

    2010-01-01

    Full Text Available We present a new method to study analytic inequalities involving n variables. Regarding its applications, we proved some well-known inequalities and improved Carleman's inequality.

  18. Long-Term Effects of Education and Legislation Enforcement on All-Age Bicycle Helmet Use: A Longitudinal Study.

    Science.gov (United States)

    Huybers, Sherry; Fenerty, Lynne; Kureshi, Nelofar; Thibault-Halman, Ginette; LeBlanc, John C; Clarke, David B; Walling, Simon

    2017-02-01

    Bicycle-related injuries are a leading cause of child and youth hospitalizations in Canada. The use of helmets while bicycling reduces the risk of brain injuries. This study investigated the long-term effect of legislation coupled with enforcement to improve helmet use rates. We conducted a longitudinal observational study of helmet use at 9, 11, and 14 years after bicycle helmet legislation was enacted. Data were compared to baseline observations collected after legislation was passed in 1997. A comprehensive enforcement and educational diversion program, Operation Headway-Noggin Knowledge (OP-NK), was developed and implemented in partnership with regional police during the study period. Helmet use was sustained throughout the post-legislation period, from 75.3 % in the year legislation was enacted to 94.2 % 14 years post-legislation. The increase in helmet use was seen among all age groups and genders. Helmet legislation was not associated with changes in bicycle ridership over the study years. OP-NK was associated with improved enforcement efforts as evidenced by the number of tickets issued to noncompliant bicycle riders. This observational study spans a 16-year study period extending from pre-legislation to 14 years post all-age bicycle helmet legislation. Our study results demonstrate that a comprehensive approach that couples education and awareness with ongoing enforcement of helmet legislation is associated with long-term sustained helmet use rates. The diversion program described herein is listed among best practices by the Public Health Agency of Canada.

  19. Recent Studies in Functional Analytic Psychotherapy

    Science.gov (United States)

    Garcia, Rafael Ferro

    2008-01-01

    Functional Analytic Psychotherapy (FAP), based on the principles of radical behaviorism, emphasizes the impact of eventualities that occur during therapeutic sessions, the therapist-client interaction context, functional equivalence between environments, natural reinforcement and shaping by the therapist. This paper reviews recent studies of FAP…

  20. Analytical Study of Thermonuclear Reaction Probability Integrals

    CERN Document Server

    Chaudhry, M A; Mathai, A M

    2000-01-01

    An analytic study of the reaction probability integrals corresponding to the various forms of the slowly varying cross-section factor $S(E)$ is attempted. Exact expressions for reaction probability integrals are expressed in terms of the extended gamma functions.

  1. e-ready legislation

    DEFF Research Database (Denmark)

    Hvingel, Line; Baaner, Lasse

    of the trustworthiness of administration systems. On the other hand, a successful adaption of legislation to a digital setup could help promote good service towards citizens and businesses, and according to land administration theories maybe even promote societal sustainability in large. Based on studies on Denmark......In general, digital society challenges traditional modes of legislation and rulings. Dissimilar compositions of the legislation and non-comparable spatial representations of the legal content makes traditional legislation unfit for e-Government. Lacking attention may lead to the undermining...

  2. An analytical study of mismatched complementary media

    CERN Document Server

    Zhu, Lin; Ma, Hongru

    2016-01-01

    Complementary media (CM) interacting with arbitrarily situated obstacles are usually less discussed. In this paper, an analytical framework based on multiple scattering theory is established for analyzing such a mismatched case. As examples, CM-based devices, i.e., a superlens and superscatterer, are discussed. From an analysis, the cancellation mechanism of the mismatched CM is studied. In addition, numerical results are provided for illustration. Moreover, further study shows that such cancellation effects might rely on specific conditions. Actually, the conclusions are not restricted to any specific frequencies; they could be extended to many other areas including applications to active cloaking, antennas, and wireless power transfer.

  3. Formulating specialised Legislation to address the Growing Spectre of Cybercrime: A Comparative Study

    Directory of Open Access Journals (Sweden)

    F Cassim

    2009-12-01

    Full Text Available The article looks at cyber legislation formulated to address cybercrime in the United States of America, the United Kingdom, Australia, India, the Gulf States and South Africa. The study reveals that the inability of national laws to address the challenges posed by cybercrime has led to the introduction of specialised cyber legislation. It is advocated that countries should amend their procedural laws to include intangible evidence of cybercrime, as opposed to tangible evidence of traditional crimes. It is possible that new forms of cybercrime will often emerge with evolving technology; therefore new cyber laws should be introduced to respond to these rapid changes. There should also be continuous research and training of IT security personnel, financial services sector personnel, police officers, prosecutors and the judiciary to keep them abreast of the evolving technology. International co-operation between countries is also required to address the global nature of cybercrime. To this end countries such as South Africa should ratify the Council of Europe’s Convention on Cybercrime (COECC to serve as a deterrent against international cybercrime. A balanced approach that considers the protection of fundamental human rights and the need for the effective prosecution of cybercrime has been mooted as the way forward.

  4. Knowledge of the abortion legislation among South African women: a cross-sectional study

    Directory of Open Access Journals (Sweden)

    Myer Landon

    2006-08-01

    Full Text Available Abstract Background In order to ensure that legalized abortion in South Africa improves reproductive health, women must know that abortion is a legal option in the case of unwanted pregnancy. This study investigated knowledge of abortion legislation eight years after the introduction of legal abortion services in one province of South Africa. Methods In 2004/2005, we conducted a cross-sectional study among 831 sexually-active women attending 26 public health clinics in one urban and one rural health region of the Western Cape Province. Results Thirty-two percent of women did not know that abortion is currently legal. Among those who knew of legal abortion, few had knowledge of the time restrictions involved. Conclusion In South Africa there is an unmet need among women for information on abortion. Strategies should be developed to address this gap so that women are fully informed of their rights to a safe and legal termination of pregnancy.

  5. [Critical reading of analytical observational studies].

    Science.gov (United States)

    García Villar, C; Marín León, I

    2015-11-01

    Analytical observational studies provide very important information about real-life clinical practice and the natural history of diseases and can suggest causality. Furthermore, they are very common in scientific journals. The aim of this article is to review the main concepts necessary for the critical reading of articles about radiological studies with observational designs. It reviews the characteristics that case-control and cohort studies must have to ensure high quality. It explains a method of critical reading that involves checking the attributes that should be evaluated in each type of article using a structured list of specific questions. It underlines the main characteristics that confer credibility and confidence on the article evaluated. Readers are provided with tools for the critical analysis of the observational studies published in scientific journals. Copyright © 2014 SERAM. Published by Elsevier España, S.L.U. All rights reserved.

  6. New Legislation in Brazilian Music Education: Studying the Law and Its Implementation

    Science.gov (United States)

    Manning, Dwight; Kamil, Marilia

    2017-01-01

    In 2008, Brazilian legislators approved a law that added music on a mandatory basis to the basic national school curriculum. Despite the possibilities afforded by this legislation, music educators affirm that many questions remain due to its ambiguity. Given the 2012 deadline for the implementation of this law, there is a need to understand how it…

  7. New Legislation in Brazilian Music Education: Studying the Law and Its Implementation

    Science.gov (United States)

    Manning, Dwight; Kamil, Marilia

    2017-01-01

    In 2008, Brazilian legislators approved a law that added music on a mandatory basis to the basic national school curriculum. Despite the possibilities afforded by this legislation, music educators affirm that many questions remain due to its ambiguity. Given the 2012 deadline for the implementation of this law, there is a need to understand how it…

  8. Analytical bunch compression studies for FLUTE

    CERN Document Server

    Schreck, M

    2014-01-01

    The current article deals with analytical bunch compression studies for FLUTE whose results are compared to simulations. FLUTE is a linac-based electron accelerator with a design energy of approximately 40 MeV currently being constructed at the Karlsruhe Institute of Technology. One of the goals of FLUTE is to generate electron bunches with their length lying in the femtosecond regime. In the first phase this will be accomplished using a magnetic bunch compressor. This compressor forms the subject of the studies presented. The paper is divided into three parts. The first part deals with pure geometric investigations of the bunch compressor where space charge effects and the back reaction of bunches with coherent synchrotron radiation (CSR) are neglected. The second part is dedicated to the treatment of space charge effects and the third part gives some analytical results on the emission of CSR. The upshot is that the results of the first and the third part agree quite well with what is obtained from simulatio...

  9. ANALYTICAL STUDY ON SHODHANA OF JAYAPALA

    Directory of Open Access Journals (Sweden)

    Sujatha K

    2013-12-01

    Full Text Available Ayurveda the life science uses plant, animal and mineral origin drugs in various therapeutics. The science is expertise in the usage of visha drvayas (poisonous drugs in therapeutics by subjecting them to a samskara known as shodhana. The role played by shodhana procedure in reducing the toxicity of the visha dravya has to be understood in a scientific way. Therefore understanding the role of shodhana of visha dravyas is the need for the hour. In the present study, the Jayapala, one of the upavisha dravyas was subjected to shodhana process and analytical study was carried out to notice the changes before and after shodhana. The study revealed that there is significant role played by the media used for shodhana.

  10. Nuclear analytical techniques in environmental studies.

    Science.gov (United States)

    Jervis, R E

    1994-01-01

    Nuclear analytical techniques are particularly suitable for measuring trace components in a wide variety of environmental samples, and for that reason, the techniques have made a significant contribution to environmental research. Presently, at a time when biosphere contamination and threats of global change in the atmosphere are of widespread concern, there exist an impressive array of specialized instrumental methods available to life scientists engaged in environmental studies; however, the nuclear techniques will probably continue to play a useful role in the future, notwithstanding the decreasing availability of necessary facilities, such as research reactors and accelerators. Reasons for the particular suitability of radionanalytical techniques are reviewed and illustrated by examples of recent applications to solid wastes, biomonitoring, and urban aerosol source identification in this laboratory.

  11. Convection of Moist Saturated Air: Analytical Study

    Directory of Open Access Journals (Sweden)

    Robert Zakinyan

    2016-01-01

    Full Text Available In the present work, the steady-state stationary thermal convection of moist saturated air in a lower atmosphere has been studied theoretically. Thermal convection was considered without accounting for the Coriolis force, and with only the vertical temperature gradient. The analytical solution of geophysical fluid dynamics equations, which generalizes the formulation of the moist convection problem, is obtained in the two-dimensional case. The stream function is derived in the Boussinesq approximation with velocity divergence taken as zero. It has been shown that the stream function is asymmetrical in vertical direction contrary to the dry and moist unsaturated air convection. It has been demonstrated that the convection in moist atmosphere strongly depends on the vapor mass fraction gradient.

  12. Analytic studies of the hard dumbell fluid

    Science.gov (United States)

    Morriss, G. P.; Cummings, P. T.

    A closed form analytic theory for the structure of the hard dumbell fluid is introduced and evaluated. It is found to be comparable in accuracy to the reference interaction site approximation (RISA) of Chandler and Andersen.

  13. Nuclear analytical techniques for nanotoxicology studies

    Energy Technology Data Exchange (ETDEWEB)

    Zhang, Z.Y.; Zhao, Y.L.; Chai, Z.F. [Chinese Academy of Sciences, Beijing (China). Key Lab for Biomedical Effects of Nanomaterials and Nanosafety

    2011-07-01

    With the rapid development of nanotechnology and its applications, a wide variety of nanomaterials are now used in commodities, pharmaceutics, cosmetics, biomedical products, and industries. The potential interactions of nanomaterials with living systems and the environment have attracted increasing attention from the public, as well as from manufacturers of nanomaterial-based products, academic researchers and policymakers. It is important to consider the environmental, health and safety aspects at an early stage of nanomaterial development and application in order to more effectively identify and manage potential human and environmental health impacts from nanomaterial exposure. This will require research in a range of areas, including detection and characterization, environmental fate and transport, ecotoxicology and toxicology. Nuclear analytical techniques (NATs) can play an important role in such studies due to their intrinsic merits such as high sensitivity, good accuracy, high space resolution, ability to distinguish the endogenous or exogenous sources of materials, and ability of in situ and in vivo analysis. In this paper, the applications of NATs in nanotoxicological and nano-ecotoxicological studies are outlined, and some recent results obtained in our laboratory are reported. (orig.)

  14. Analytical Study of Electromagnetic Wave in Superlattice

    Institute of Scientific and Technical Information of China (English)

    LINChang; ZHANGXiu-Lian

    2004-01-01

    The theoretical description of soliton solutions and exact analytical solutions in the sine-Gordon equation is extended to superlattice physics. A family of interesting exact solutions and a new exact analytical solution have been obtained for the electromagnetic wave propagating through a superlattice. In more general cases, the vector potential along the propagating direction obeys the sine-Gordon equation. Some mathematical results of theoretical investigation are given for different cases in supedattices.

  15. Analytical Study of Electromagnetic Wave in Superlattice

    Institute of Scientific and Technical Information of China (English)

    LIN Chang; ZHANG Xiu-Lian

    2004-01-01

    The theoretical description of soliton solutions and exact analytical solutions in the sine-Gordon equation is extended to superlattice physics. A family of interesting exact solutions and a new exact analytical solution have been obtained for the electromagnetic wave propagating through a superlattice. In more general cases, the vector potential along the propagating direction obeys the sine-Gordon equation. Some mathematical results of theoretical investigation are given for different cases in superlattices.

  16. Catalyst Kinetics Analytical Method Study of Ruthenium

    Institute of Scientific and Technical Information of China (English)

    Kou ming-ze; Zhan hui-ying; Kou zong-yan

    2004-01-01

    Color reactions are used to determine ruthenium utilizing spectrophotometer, but the process need high temperature, long time pyrogenation and miscellaneous extraction and it contaminates the enviroment. As the sensitive degree and simple apparatus of catalyst kinetics analytical method, it was extensively attentcd. The fundmental principle means to determinn a certain chemistry reaction rate accelerated by homogeneous catalyst and determine substantial content using the function of the numerical value of of its and the catalyst concentration. Color acid double azo-reagents (chloro-phosphor group, arsenic group and carboxylic acid group) are sensitive color reagent determining uranium and thorium of lanthanon, but the report is few that it is used to determine ruthenium. Since 1990s, the author studied that the ruthenium was possessed evident catalysis to the fade reaction of oxidant (KIO4, KBrO3) oxidating color acid double azo-reagent in acitidy medium and provided the catalyst kinetics analytical method to determine trace ruthenium.sensitive degree was increased 1 ~2 amount than color reaction. The reaction as:The original concentration of color acid double azo-reagents is A. The instantaneous absorbency after t reaction time is At. In homogeneous catalyst reaction: log(A0/At) = KCRu3+t. Reaction time t is invarible, so log(A0/At) = K' CRu3+t.Color acid double azo-reagents, such as: chlor-azochlorphosphor(CPA-TC),bromic-azochlorphosphor (CPA-TB), DBS-azochlorphosphor(DBS-CPA), DBC-azochlorphosphor (DBC-CPA), DBOK-azochlorpho sphor (DBOK-CPA), p-iodineazochlorphosphor(CPA-PI),p-acetylazochlorphosphor (CPA-PA), azochlorpho sphorⅢ(CPAⅢ), chlor-azoarsenic (TC-AsA),bromic-azoarsenic (TB-AsA), DBS-azoarsenic(DCS-AsA), DCS-azoarsenic(DCS-AsA),azoarsenicⅢ(AsAⅢ), bromicnityrlazoarsenic (DBN-AsA), P-acetylcarboxy lazo-p,P-acetylcarboxylazo, were utilized in catalyst kinetics system. The author obtains the satisfactory results that color acid double azo-rea gents

  17. Road traffic accidents before and after seatbelt legislation--study in a district general hospital.

    Science.gov (United States)

    Thomas, J

    1990-01-01

    Injuries among samples of car accident cases attending the Accident & Emergency (A & E) department of a District General Hospital (DGH) in the year before and after the introduction of seat belt legislation were classified applying the Abbreviated Injury Scale using information recorded in the patient case notes. Those who died or did not attend an A & E department were not included in the sampling frame. The number of those who escaped injury increased by 40% and those with mild and moderate injuries decreased by 35% after seatbelt legislation. There was a significant reduction in soft tissue injuries to the head. Only whiplash injuries to the neck showed a significant increase. PMID:2319551

  18. When evidence is not enough: a case study on alcohol marketing legislation in Brazil.

    Science.gov (United States)

    Vendrame, Alan

    2017-01-01

    This case study identifies the influence and mechanisms that the alcohol industry in Brazil has been able to bring to bear to maintain self-regulation in the marketing of beer and many wines set against a trend of increasing alcohol consumption in Brazil, particularly among young people and women. It identifies the forms of power and strategies used by the alcohol industry in Brazil that may be useful for other countries to consider in seeking to move from self-regulation to state regulation of alcohol marketing. A review was conducted of recent legal documents and court cases, as well as the activities of alcoholic beverage industries. Because of an exemption, Brazilian law had established that both beer and many wines are not alcoholic beverages for marketing purposes. These beverages are subjected to industry self-regulation codes. Research shows that beer and wine marketing often violates industry codes, with little or no enforcement of penalties for non-compliance. Attempts to include beer and wine in the legal definition of alcohol have been opposed by the alcohol industry, and the courts have delegated responsibility to the legislature. The recent legal activities surrounding alcohol sales during the 2014 World Cup games in Brazil provide evidence of the alcohol industry's influence on the legislative process. The alcohol industry in Brazil plays a significant role in the formulation of public policies on alcohol, especially regarding the regulation of marketing. This power is exercised by strong lobbying of government officials responsible for public policies. © 2016 Society for the Study of Addiction.

  19. Partisan Differences on Higher Education Accountability Policy: A Multi-State Study of Elected State Legislators

    Science.gov (United States)

    Morse, Andrew Q.

    2014-01-01

    Public institutions in the United States face a policy challenge to adapt to accountability expectations among a variety of stakeholders (Bogue & Hall, 2012; Thelin, 2004; Richardson & Martinez, 2009). Among the major stakeholders are state legislators who hold fiscal and policy influence over public institutions, but these leaders have…

  20. From LAMP to Koha: Case Study of the Pakistan Legislative Assembly Libraries

    Science.gov (United States)

    Shafi-Ullah, Farasat; Qutab, Saima

    2012-01-01

    Purpose: This paper aims to elaborate the library data migration process from LAMP (Library Automation Management Program) to the open source software Koha's (2.2.8 Windows based) Pakistani flavour PakLAG-Koha in six legislative assembly libraries of Pakistan. Design/methodology/approach: The paper explains different steps of the data migration…

  1. Legislating thresholds for drug trafficking: a policy development case study from New South Wales, Australia.

    Science.gov (United States)

    Hughes, Caitlin Elizabeth; Ritter, Alison; Cowdery, Nicholas

    2014-09-01

    Legal thresholds are used in many parts of the world to define the quantity of illicit drugs over which possession is deemed "trafficking" as opposed to "possession for personal use". There is limited knowledge about why or how such laws were developed. In this study we analyse the policy processes underpinning the introduction and expansion of the drug trafficking legal threshold system in New South Wales (NSW), Australia. A critical legal and historical analysis was undertaken sourcing data from legislation, Parliamentary Hansard debates, government inquiries, police reports and research. A timeline of policy developments was constructed from 1970 until 2013 outlining key steps including threshold introduction (1970), expansion (1985), and wholesale revision (1988). We then critically analysed the drivers of each step and the roles played by formal policy actors, public opinion, research/data and the drug trafficking problem. We find evidence that while justified as a necessary tool for effective law enforcement of drug trafficking, their introduction largely preceded overt police calls for reform or actual increases in drug trafficking. Moreover, while the expansion from one to four thresholds had the intent of differentiating small from large scale traffickers, the quantities employed were based on government assumptions which led to "manifest problems" and the revision in 1988 of over 100 different quantities. Despite the revisions, there has remained no further formal review and new quantities for "legal highs" continue to be added based on assumption and an uncertain evidence-base. The development of legal thresholds for drug trafficking in NSW has been arbitrary and messy. That the arbitrariness persists from 1970 until the present day makes it hard to conclude the thresholds have been well designed. Our narrative provides a platform for future policy reform. Copyright © 2014 Elsevier B.V. All rights reserved.

  2. Historical Approach to the Role of Women in the Legislation of Iran: A Case Study on the Twenty-First Parliament

    Directory of Open Access Journals (Sweden)

    Sarah Sheibani

    2017-01-01

    Full Text Available One hundred and ten years ago, men and women took constitutionalism to achieve justice in Iran. National Council was the result of the Iranian people's struggle for justice, both women and men. Men policies from the beginning of legislation put women as minors and lunatics and bankrupted and banned them from vote. However, the Constitutional Revolution as a turning point and a national revolution played a key role in changing attitudes to women and structural context of their participation provided. In this paper, with the use of descriptive-analytical as well as quantitative methods, we sought to answer the question that what was the position of women in the twenty-first Parliament. The results of this study suggest that when Iranian women were allowed to participate politics, they have achieved to show their ability in politics as we saw examples in the twenty-first Parliament in which women had twenty-two percent participation.

  3. Comparative study on membership legislation in Canadian and Chinese agricultural co-operative laws

    Institute of Scientific and Technical Information of China (English)

    CHU Zhihong; GUO Xiangyu

    2007-01-01

    For centuries, groups of people desiring to supply themselves with goods, to market their products, or to obtain services of various kinds on a co-operative basis, have made increasing use of co-operative associations to achieve these purposes. During the period, legislation designed especially for the incorporation and conduct of such associations has been enacted by different counties.Since a co-operative is established and carried on by and for the use of its members, this essay makes a comparison between Canadian and Chinese co-operative laws in terms of membership in the aspects of qualifications, rights and obligations and withdrawal of membership, so as to probe the function of co-operative legislation and find some enlightment from it.

  4. Analytical study of magnetohydrodynamic propulsion stability

    Science.gov (United States)

    Abdollahzadeh Jamalabadi, M. Y.

    2014-09-01

    In this paper an analytical solution for the stability of the fully developed flow drive in a magneto-hydro-dynamic pump with pulsating transverse Eletro-magnetic fields is presented. To do this, a theoretical model of the flow is developed and the analytical results are obtained for both the cylindrical and Cartesian configurations that are proper to use in the propulsion of marine vessels. The governing parabolic momentum PDEs are transformed into an ordinary differential equation using approximate velocity distribution. The numerical results are obtained and asymptotic analyses are built to discover the mathematical behavior of the solutions. The maximum velocity in a magneto-hydro-dynamic pump versus time for various values of the Stuart number, electro-magnetic interaction number, Reynolds number, aspect ratio, as well as the magnetic and electrical angular frequency and the shift of the phase angle is presented. Results show that for a high Stuart number there is a frequency limit for stability of the fluid flow in a certain direction of the flow. This stability frequency is dependent on the geometric parameters of a channel.

  5. Analytical Study of Magnetohydrodynamic Propulsion Stability

    Institute of Scientific and Technical Information of China (English)

    M.Y.Abdollahzadeh Jamalabadi

    2014-01-01

    In this paper an analytical solution for the stability of the fully developed flow drive in a magneto-hydro-dynamic pump with pulsating transverse Eletro-magnetic fields is presented. To do this, a theoretical model of the flow is developed and the analytical results are obtained for both the cylindrical and Cartesian configurations that are proper to use in the propulsion of marine vessels. The governing parabolic momentum PDEs are transformed into an ordinary differential equation using approximate velocity distribution. The numerical results are obtained and asymptotic analyses are built to discover the mathematical behavior of the solutions. The maximum velocity in a magneto-hydro-dynamic pump versus time for various values of the Stuart number, electro-magnetic interaction number, Reynolds number, aspect ratio, as well as the magnetic and electrical angular frequency and the shift of the phase angle is presented. Results show that for a high Stuart number there is a frequency limit for stability of the fluid flow in a certain direction of the flow. This stability frequency is dependent on the geometric parameters of a channel.

  6. State Legislative Support for Parks

    Directory of Open Access Journals (Sweden)

    Judy Kruger

    2010-06-01

    Full Text Available Background: Parks are important venues that can encourage population-level physical activity, and policy legislation can facilitate or discourage physical activity and other park uses, depending on the type and level of support. This study aims to summarize the status and content of state-level park-related legislation. Methods: We searched for eligible legislation from 2001–2007 in two data sources, CDC’s Nutrition, Physical Activity and Obesity Legislative Database and Lexis-Nexis, using the key words conservation, growth management/land use, parks, recreation, preservation, path, green space, or open space. State legislation was categorized into seven broad topic areas and analyzed by number introduced and passed (enacted as law, by state and category. Results: States varied in the number and type of park-related legislation introduced and passed. Common categories of introduced park-related state legislation were preservation or conservation (n = 26, 9 passed, funding (n = 43, 10 passed, creation or acquisition of park land (n = 53, 9 passed, safety and liability (n = 34, 5 passed, accessibility (n = 20, 2 passed, outreach (n = 15, 2 passed, and outdoor activities (n = 13, 2 passed. Conclusion: During 2001 to 2007, 19% of park-related state legislation was enacted. Research on legislative policy is an emerging field, and more information on the content of park-related legislation could assist states in their efforts to promote physical activity in park venues.

  7. Performance of a solarium: an analytical study

    Energy Technology Data Exchange (ETDEWEB)

    Tiwari, G.N.; Lawrence, S.A.; Yadav, Y.P.

    1988-01-01

    In this communication, a combination of phase change component material (PCCM) and water wall as a link wall in a solarium have been proposed and analysed for load levelling in the living space of the solarium. The choice of the aforesaid combination as a link wall has been made because of relatively high heat transfer coefficient of water and greater thermal energy storage potential of the combination. The relatively greater thermal storage potential of the proposed combination reduces the temperature swings in the living space and provides thereby a comfortable living environment. Analytical expression for living space temperature as a function of climatic and system parameters as well as various heat transfer coefficients have been derived. Numerical calculations have been carried out for a typical day of North America (Boulder) for zero ventilation rate. It is concluded that the proposed combination as a link wall gives best thermal load levelling.

  8. Popular Legislative Initiative for Spain Surrogacy: A Study of the Role of Notary in Contract Surrogacy

    Directory of Open Access Journals (Sweden)

    Lorena Sales Pallarés

    2016-12-01

    Full Text Available This article analyzes the Popular Legislative Initiative to regulate surrogacy in Spain. It is proposed to regulate this contractual figure guaranteeing the rights of all parties involved in the process by bringing this feature in the figure of the notary. Therefore, this article analyzes this notarial tutelage of the surrogacy contract. It will consider whether the functions of the Notary make possible this proposal or if it would be necessary to make changes either in the draft law on notary functions well.

  9. Improved analytical method to study the cup anemometer performance

    Science.gov (United States)

    Pindado, Santiago; Ramos-Cenzano, Alvaro; Cubas, Javier

    2015-10-01

    The cup anemometer rotor aerodynamics is analytically studied based on the aerodynamics of a single cup. The effect of the rotation on the aerodynamic force is included in the analytical model, together with the displacement of the aerodynamic center during one turn of the cup. The model can be fitted to the testing results, indicating the presence of both the aforementioned effects.

  10. "These Things Don't Happen in Greece": A Qualitative Study of Greek Young People's Attitudes to Smoking, Secondhand Smoke and the Smokefree Legislation

    Science.gov (United States)

    Tamvakas, Ioannis; Amos, Amanda

    2010-01-01

    Greece has the highest smoking prevalence in the European Union, with adolescents having high levels of exposure to secondhand smoke (SHS). In July 2009, national smokefree legislation was implemented in Greece. This study explored Greek young people's attitudes to smoking, SHS and the impending legislation. Semi-structured qualitative interviews…

  11. Analytic PSF Correction for Gravitational Flexion Studies

    CERN Document Server

    Levinson, Rebecca Sobel

    2013-01-01

    Given a galaxy image, one cannot simply measure its flexion. An image's spin one and three shape properties, typically associated with F- and G-flexion, are actually complicated functions of the galaxy's intrinsic shape and the telescope's PSF, in addition to the lensing properties. The same is true for shear. In this work we create a completely analytic mapping from apparent measured galaxy flexions to gravitational flexions by (1) creating simple models for a lensed galaxy and for a PSF whose distortions are dominated by atmospheric smearing and optical aberrations, (2) convolving the two models, and (3) comparing the pre- and post-convolved flexion-like shape variations of the final image. For completeness, we do the same for shear. As expected, telescope astigmatism, coma, and trefoil can corrupt measurements of shear, F- flexion, and G-flexion, especially for small galaxies. We additionally find that PSF size dilutes the flexion signal more rapidly than the shear signal. Moreover, mixing between shears, ...

  12. STRengthening analytical thinking for observational studies

    DEFF Research Database (Denmark)

    Altman, Douglas G.; le Cessie, Saskia; Abrahamowicz, Michal

    2014-01-01

    The validity and practical utility of observational medical research depends critically on good study design, excellent data quality, appropriate statistical methods and accurate interpretation of results. Statistical methodology has seen substantial development in recent times. Unfortunately, ma...

  13. The Study on Progression for Consolidating the Nuclear Security Legislative System

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jae San; Jung, Myung Tak [Korea Institute of Nuclear Nonproliferation and Control, Daejeon (Korea, Republic of)

    2015-05-15

    One is the International Convention for Suppressing Acts of Nuclear Terrorism (ICSANT) and the other is amendment to the Convention on Physical Protection of Nuclear Material (CPPNM). ICSANT and CPPNM were proposed by the UN and IAEA, respectively to strengthen the international framework of nuclear security. The ICSANT was entered into force in 2007, but CPPNM amendment is pending in force because the shortage of countries who ratify it. For going into effect this convention, it needs the two-thirds of the States Parties to the CPPNM. It is not completed, yet. So, various initiatives such as nuclear security summit, GICNT, UN ministerial conference, etc. treated that those two conventions were the primary basis to strengthen the global nuclear security architecture. The Republic of Korea (ROK) continuously has made an effort to consolidate the nuclear security legislative framework since the 2010. The purpose of this paper is to provide what we did to strengthen the nuclear security legal framework and what should we do next.

  14. LEGISLATIVE STUDY ON THE GOVERNMENT REGULATION ON SOME ECONOMIC RECOVERY MEASURES

    Directory of Open Access Journals (Sweden)

    BOSTAN Ionel

    2014-06-01

    Full Text Available This paper addresses the most significant elements related to the direct enactment by the executive authority – following the most difficult moments of the financial crisis (2009-2010 – of some key measures in determining the economic recovery/growth. Special attention is given to the problem of growth strengthening and sustainable competitiveness of small and medium enterprises, as well as to the issue of stimulating the set up and development of micro enterprises by junior entrepreneurs. Considering things from the legal perspective, we also stop upon the legislative measures taken by the Government to support SME access to financial guarantees and credits. Obviously, in the context following the peak of the financial crisis, we took into consideration the regulation on stimulating the development of new jobs and the regime of state aids, as well. This latter issue includes, we believe, the most important references to State aid schemes on stimulating the investments with a major impact in the economy, the ‘de minimis’ aid for the investments made by small and medium-sized enterprises, and also to the issues arising from the implementation of a State aid scheme to support the investments which promote the regional development by creating jobs.

  15. Analytical Study of Physics Education Websites' Content

    Science.gov (United States)

    Elayyan, Shaher R.

    2016-01-01

    The current study is compatible with the scientific mobility in dealing with the Internet as a source of knowledge. It aims to introduce the Physics Education Websites (PEWs) and guide their followers toward the most credibility of them by analyzing their content. The sample consisted of (36) websites which were selected according to specific…

  16. Studying Human Dynamics Through Web Analytics

    Science.gov (United States)

    Ramasco, Jose; Goncalves, Bruno

    2008-03-01

    When Tim Berners Lee, a physicist at the European Center for Nuclear Research (CERN) first conceived the World Wide Web (WWW) in 1990 as a way to facilitate the sharing of scientific information and results among the centers different researchers and groups, even the most ingenious of science fiction writers could not have imagined the role it would come to play in the following decades. The increasing ubiquitousness of Internet access and the frequency with which people interact with it raise the possibility of using it to better observe, understand, and even monitor several aspects of human social behavior. Websites with large numbers of frequently returning users, such as search engines, company or university websites, are ideal for this task. The properly anonymized logs detailing the access history to Emory University's website is studied. We find that a small number of users is responsible for a finite fraction of the total activity. A saturation phenomenon is observed where, certain connections age, becoming less attractive to new activity over time. Finally, by measuring the average activity as a function of the day of the week, we find that productivity seems to be higher on Tuesdays and Wednesdays, with Sundays being the least active day.

  17. Microwave magnetoelectric fields: An analytical study of topological characteristics

    CERN Document Server

    Joffe, R; Kamenetskii, E O

    2015-01-01

    The near fields originated from a small quasi-two-dimensional ferrite disk with magnetic-dipolar-mode (MDM) oscillations are the fields with broken dual (electric-magnetic) symmetry. Numerical studies show that such fields, called the magnetoelectric (ME) fields, are distinguished by the power-flow vortices and helicity parameters [E. O. Kamenetskii, R. Joffe, and R. Shavit, Phys. Rev. E 87, 023201 (2013)]. These numerical studies can well explain recent experimental results with MDM ferrite disks. In the present paper, we obtain analytically topological characteristics of the ME-field modes. For this purpose, we use a method of successive approximations. In the second approximation we take into account the influence of the edge regions of an open ferrite disk, which are excluded in the first-approximation solving of the magnetostatic (MS) spectral problem. Based on the analytical method, we obtain a 'pure' structure of the electric and magnetic fields outside the MDM ferrite disk. The analytical studies can ...

  18. Analytical studies of torque motor tape active element

    Directory of Open Access Journals (Sweden)

    Dolgih Antonina

    2016-01-01

    Full Text Available The paper presents analytical studies of the torque motor tape active element. The tape active element is a novel type of a motor’s stator organization, where the conventional winding is replaced by a tape winding. Given the operation principle of proposed active element; its torque characteristics are then computationally found with using the finite element method (FEM. The results show the possibility of the optimal value of the relative electrode width, when the torque will be maximal. The analytical studies of the motor’s torque over the number of tape winding coils allowed to receive the recommendations on choosing the number of coils.

  19. Analytical and Numerical Studies of Sloshing in Tanks

    Energy Technology Data Exchange (ETDEWEB)

    Solaas, F.

    1995-12-31

    For oil cargo ship tanks and liquid natural gas carriers, the dimensions of the tanks are often such that the highest resonant sloshing periods and the ship motions are in the same period range, which may cause violent resonant sloshing of the liquid. In this doctoral thesis, linear and non-linear analytical potential theory solutions of the sloshing problem are studied for a two-dimensional rectangular tank and a vertical circular cylindrical tank, using perturbation technique for the non-linear case. The tank is forced to oscillate harmonically with small amplitudes of sway with frequency in the vicinity of the lowest natural frequency of the fluid inside the tank. The method is extended to other tank shapes using a combined analytical and numerical method. A boundary element numerical method is used to determine the eigenfunctions and eigenvalues of the problem. These are used in the non-linear analytical free surface conditions, and the velocity potential and free surface elevation for each boundary value problem in the perturbation scheme are determined by the boundary element method. Both the analytical method and the combined analytical and numerical method are restricted to tanks with vertical walls in the free surface. The suitability of a commercial programme, FLOW-3D, to estimate sloshing is studied. It solves the Navier-Stokes equations by the finite difference method. The free surface as function of time is traced using the fractional volume of fluid method. 59 refs., 54 figs., 37 tabs.

  20. Study on the Legislation for Electronic Commerce in China%我国电子商务的立法研究

    Institute of Scientific and Technical Information of China (English)

    武振业; 陈旭

    2001-01-01

    电子商务立法是推动电子商务发展的前提和条件。在评析国内外电子商务立法的基础上,讨论了我国电子商务立法的指导思想和原则,分析了我国电子商务的内容,并论述了我国电子商务立法应该注意的问题。%The legislation for electronic commerce is the precondition topull the development of electronic commerce. Based on evaluating the legislation for electronic commerce in home and abroad, the direction thinking and principle of the legislation for electronic commerce is discussed, and the content of electronic commerce in China is analyzed, and the problem that should be paid attention to in the legislation for electronic commerce is studied.

  1. A Contrastive Survey of Speech Acts in Hong Kong Bilingual Legislative Texts: A Case Study of CO and SPR

    Science.gov (United States)

    Fu, Kefeng

    2014-01-01

    As one kind of the legislative language, the language of bilingual legislation possesses its specific characteristics: the two versions share the same authenticity and effect. Therefore, the contrastive analysis of this kind of language from the perspective of pragmatics is more persuasive and authoritative. In this paper, the author chooses Crime…

  2. Perspectives on animal welfare legislation and study considerations for field-oriented studies of raptors in the United States

    Science.gov (United States)

    Boal, C.W.; Wallace, M.C.; Strobel, B.

    2010-01-01

    Concern for the welfare of animals used in research and teaching has increased over the last 50 yr. Animal welfare legislation has resulted in guidelines for the use of animals in research, but the guidelines can be problematic because they focus on animals used in laboratory and agriculture research. Raptor biologists can be constrained by guidelines, restrictions, and oversight that were not intended for field research methods or wild animals in the wild or captivity. Field researchers can be further hampered by not understanding animal welfare legislation, who is subject to oversight, or that oversight is often provided by a committee consisting primarily of scientists who work with laboratory animals. Raptor researchers in particular may experience difficulty obtaining approval due to use of various species-specific trapping and handling methods. We provide a brief review of animal welfare legislation and describe the basic components and responsibilities of an Institutional Animal Care and Use Committee (IACUC) in the United States. We identify topics in raptor research that are especially problematic to obtaining IACUC approval, and we provide insight on how to address these issues. Finally, we suggest that all raptor researchers, regardless of legal requirements, abide by the spirit of the animal welfare principles. Failure to do so may bring about further regulatory and permitting restrictions. ?? 2010 The Raptor Research Foundation, Inc.

  3. Analytical Studies on Holographic Insulator/Superconductor Phase Transitions

    CERN Document Server

    Cai, Rong-Gen; Zhang, Hai-Qing

    2011-01-01

    We investigate the analytical properties of the s-wave and p-wave holographic insulator/superconductor phase transitions at zero temperature. In the probe limit, we analytically calculate the critical chemical potentials at which the insulator/superconductor phase transition occurs. Those resulting analytical values perfectly match the previous numerical values. We also study the relations between the condensation values and the chemical potentials near the critical point. We find that the critical exponent for condensation operator is 1/2 for both models. The linear relations between the charge density and the chemical potential near the critical point are also deduced in this paper, which are qualitatively consistent with the previous numerical results.

  4. ANALYTICAL METHODS IN ARCHAEOMETRY: STUDY OF SUPPORT MATERIAL

    Directory of Open Access Journals (Sweden)

    Rodica Mariana Ion

    2011-02-01

    Full Text Available The application of some analytical techniques developed initially in materials science (techniques based on physical-chemical phenomena in the study of art and archaeological objects offers the historian and archaeologist quantitative information that can prove useful in order to better understanding of ancient society. The preservation of material culture for future generations with the best possible fidelity requires in-depth knowledge, to aid the most suitable restoration, conservation, storage, and eventual museum display. The use of analytical techniques often proves useful for the specialists in conservation and/or restoration due to the valuable information given (composition, state of degradation, and so on. This paper describes the use of some analytical techniques (X-ray fluorescence - XRF, inductively coupled plasma - atomic emission spectrometry - ICP-AES, Fourier transformed - infrared spectroscopy - FTIR for analyzing compositions of artifacts.

  5. Case Study : Visual Analytics in Software Product Assessments

    NARCIS (Netherlands)

    Telea, Alexandru; Voinea, Lucian; Lanza, M; Storey, M; Muller, H

    2009-01-01

    We present how a combination of static source code analysis, repository analysis, and visualization techniques has been used to effectively get and communicate insight in the development and project management problems of a large industrial code base. This study is an example of how visual analytics

  6. Institutional Constraints, Legislative Activism and Policy Change

    DEFF Research Database (Denmark)

    Citi, Manuele; Justesen, Mogens Kamp

    2016-01-01

    This article presents a study of how institutional constraints affect legislative activism and how legislative activism in turn affects policy change through an analysis of the European Union's legislative process. The argument revolves around the key role of the European Commission in advancing ...

  7. Microwave magnetoelectric fields: An analytical study of topological characteristics

    Energy Technology Data Exchange (ETDEWEB)

    Joffe, R., E-mail: ioffr1@gmail.com [Microwave Magnetic Laboratory, Department of Electrical and Computer Engineering, Ben Gurion University of the Negev, Beer Sheva (Israel); Department of Electrical and Electronics Engineering, Shamoon College of Engineering, Beer Sheva (Israel); Shavit, R.; Kamenetskii, E.O. [Microwave Magnetic Laboratory, Department of Electrical and Computer Engineering, Ben Gurion University of the Negev, Beer Sheva (Israel)

    2015-10-15

    The near fields originated from a small quasi-two-dimensional ferrite disk with magnetic-dipolar-mode (MDM) oscillations are the fields with broken dual (electric-magnetic) symmetry. Numerical studies show that such fields – called the magnetoelectric (ME) fields – are distinguished by the power-flow vortices and helicity parameters (E.O. Kamenetskii, R. Joffe, R. Shavit, Phys. Rev. E 87 (2013) 023201). These numerical studies can well explain recent experimental results with MDM ferrite disks. In the present paper, we obtain analytically topological characteristics of the ME-field modes. For this purpose, we used a method of successive approximations. In the second approximation we take into account the influence of the edge regions of an open ferrite disk, which are excluded in the first-approximation solving of the magnetostatic (MS) spectral problem. Based on the analytical method, we obtain a “pure” structure of the electric and magnetic fields outside the MDM ferrite disk. The analytical studies can display some fundamental features that are non-observable in the numerical results. While in numerical investigations, one cannot separate the ME fields from the external electromagnetic (EM) radiation, the present theoretical analysis allows clearly distinguish the eigen topological structure of the ME fields. Importantly, this ME-field structure gives evidence for certain phenomena that can be related to the Tellegen and bianisotropic coupling effects. We discuss the question whether the MDM ferrite disk can exhibit properties of the cross magnetoelectric polarizabilities. - Highlights: • We obtain analytically topological characteristics of the ME-field modes. • We take into account the influence of the edge regions of an open ferrite disk. • We obtain a “pure” structure of the electromagnetic fields outside the ferrite disk. • Analytical studies show features that are non-observable in the numerical results. • ME-field gives evidence for

  8. Seamless Digital Environment – Data Analytics Use Case Study

    Energy Technology Data Exchange (ETDEWEB)

    Oxstrand, Johanna

    2017-08-01

    Multiple research efforts in the U.S Department of Energy Light Water Reactor Sustainability (LWRS) Program studies the need and design of an underlying architecture to support the increased amount and use of data in the nuclear power plant. More specifically the three LWRS research efforts; Digital Architecture for an Automated Plant, Automated Work Packages, Computer-Based Procedures for Field Workers, and the Online Monitoring efforts all have identified the need for a digital architecture and more importantly the need for a Seamless Digital Environment (SDE). A SDE provides a mean to access multiple applications, gather the data points needed, conduct the analysis requested, and present the result to the user with minimal or no effort by the user. During the 2016 annual Nuclear Information Technology Strategic Leadership (NITSL) group meeting the nuclear utilities identified the need for research focused on data analytics. The effort was to develop and evaluate use cases for data mining and analytics for employing information from plant sensors and database for use in developing improved business analytics. The goal of the study is to research potential approaches to building an analytics solution for equipment reliability, on a small scale, focusing on either a single piece of equipment or a single system. The analytics solution will likely consist of a data integration layer, predictive and machine learning layer and the user interface layer that will display the output of the analysis in a straight forward, easy to consume manner. This report describes the use case study initiated by NITSL and conducted in a collaboration between Idaho National Laboratory, Arizona Public Service – Palo Verde Nuclear Generating Station, and NextAxiom Inc.

  9. Time resolved breast transillumination: analytical, numerical and experimental study

    OpenAIRE

    Haller, Emmanuel B. de

    1993-01-01

    This work is mainly dedicated to the study of light transport through biological tissues and particularly the propagation of a light pulse. This study does not take into account the nonlinear properties of biological tissues. Different approaches were planned and then compared in order to understand and describe the physical phenomenon as well as possible. The analytical approach based on the Boltzmann transport equation gives satisfactory results for the qualitative description of the transm...

  10. Time resolved breast transillumination: analytical, numerical and experimental study

    OpenAIRE

    Haller, Emmanuel B. de; Depeursinge, Christian

    2007-01-01

    This work is mainly dedicated to the study of light transport through biological tissues and particularly the propagation of a light pulse. This study does not take into account the nonlinear properties of biological tissues. Different approaches were planned and then compared in order to understand and describe the physical phenomenon as well as possible. The analytical approach based on the Boltzmann transport equation gives satisfactory results for the qualitative description of the transm...

  11. Assessing analytical comparability of biosimilars: GCSF as a case study.

    Science.gov (United States)

    Nupur, Neh; Singh, Sumit Kumar; Narula, Gunjan; Rathore, Anurag S

    2016-10-01

    The biosimilar industry is witnessing an unprecedented growth with the newer therapeutics increasing in complexity over time. A key step towards development of a biosimilar is to establish analytical comparability with the innovator product, which would otherwise affect the safety/efficacy profile of the product. Choosing appropriate analytical tools that can fulfil this objective by qualitatively and/or quantitatively assessing the critical quality attributes (CQAs) of the product is highly critical for establishing equivalence. These CQAs cover the primary and higher order structures of the product, product related variants and impurities, as well as process related impurities, and host cell related impurities. In the present work, we use such an analytical platform for assessing comparability of five approved Granulocyte Colony Stimulating Factor (GCSF) biosimilars (Emgrast, Lupifil, Colstim, Neukine and Grafeel) to the innovator product, Neupogen(®). The comparability studies involve assessing structural homogeneity, identity, secondary structure, and product related modifications. Physicochemical analytical tools include peptide mapping with mass determination, circular dichroism (CD) spectroscopy, reverse phase chromatography (RPC) and size exclusion chromatography (SEC) have been used in this exercise. Bioactivity assessment include comparison of relative potency through in vitro cell proliferation assays. The results from extensive analytical examination offer robust evidence of structural and biological similarity of the products under consideration with the pertinent innovator product. For the most part, the biosimilar drugs were found to be comparable to the innovator drug anomaly that was identified was that three of the biosimilars had a typical variant which was reported as an oxidized species in the literature. But, upon further investigation using RPC-FLD and ESI-MS we found that this is likely a conformational variant of the biotherapeutic been

  12. Controlling sickness absence: a study of changes in the Danish sickness absence legislation since 1973

    DEFF Research Database (Denmark)

    Johansen, Kristina; Andersen, John Sahl; Mikkelsen, Sigurd

    2007-01-01

    OBJECTIVES: To outline the principles underlying changes overtime in entitlement to sickness absence benefit in Denmark. METHODS: The Danish sickness benefit scheme during the past 30 years has been studied based on a comprehensive review of the Sickness Benefit Act from 1973, and all later...... amendments to the act. RESULTS: Entitlement to sickness benefit in Denmark has undergone considerable changes during the past 30 years. The guiding principles of the reforms have been financial savings in combination with an assumption that human behaviour can be controlled through bureaucratic...... administration with focus on monitoring and evaluation. CONCLUSIONS: The Sickness Benefit Act was initially based on a broad concept of disease but the implementation underwent major changes. In the 1970s and 1980s entitlement to benefit depended very much on medical diagnosis. This practice changed and today...

  13. An analytical study of double bend achromat lattice

    Energy Technology Data Exchange (ETDEWEB)

    Fakhri, Ali Akbar, E-mail: fakhri@rrcat.gov.in; Kant, Pradeep; Singh, Gurnam; Ghodke, A. D. [Raja Ramanna Centre for Advanced Technology, Indore 452 013 (India)

    2015-03-15

    In a double bend achromat, Chasman-Green (CG) lattice represents the basic structure for low emittance synchrotron radiation sources. In the basic structure of CG lattice single focussing quadrupole (QF) magnet is used to form an achromat. In this paper, this CG lattice is discussed and an analytical relation is presented, showing the limitation of basic CG lattice to provide the theoretical minimum beam emittance in achromatic condition. To satisfy theoretical minimum beam emittance parameters, achromat having two, three, and four quadrupole structures is presented. In this structure, different arrangements of QF and defocusing quadruple (QD) are used. An analytical approach assuming quadrupoles as thin lenses has been followed for studying these structures. A study of Indus-2 lattice in which QF-QD-QF configuration in the achromat part has been adopted is also presented.

  14. Dispersion of helically corrugated waveguides: Analytical, numerical, and experimental study

    Science.gov (United States)

    Burt, G.; Samsonov, S. V.; Ronald, K.; Denisov, G. G.; Young, A. R.; Bratman, V. L.; Phelps, A. D.; Cross, A. W.; Konoplev, I. V.; He, W.; Thomson, J.; Whyte, C. G.

    2004-10-01

    Helically corrugated waveguides have recently been studied for use in various applications such as interaction regions in gyrotron traveling-wave tubes and gyrotron backward-wave oscillators and as a dispersive medium for passive microwave pulse compression. The paper presents a summary of various methods that can be used for analysis of the wave dispersion of such waveguides. The results obtained from an analytical approach, simulations with the three-dimensional numerical code MAGIC, and cold microwave measurements are analyzed and compared.

  15. INTRAGROUP COOPERATION VS. INTRAGROUP COMPETITION: A Meta-Analytical Study

    OpenAIRE

    Na'im, Ainun

    2004-01-01

    This study examines whether intragroup cooperation outperforms intragroup competition. Intragroup cooperation is a work setting when individuals in a group perceive that their goal attainments are positively related; while intragroup competition is a work setting when individuals in a group perceive that their goal attainments are negatively related. Performance is defined as group productivity level, speed of solving problems, and quality of the group outcomes.Meta-analytical method is used ...

  16. Chladni figures for completely free parallelogram plates: an analytical study

    Science.gov (United States)

    Bardell, N. S.

    1994-07-01

    This paper communicates the first comprehensive analytical study of the title problem. The Ritz method with admissible functions in the form of Legendre polynomials is used, and is shown to provide rapid convergence and highly economic eigensolutions for a given problem. The robustness of the method is demonstrated, and proof is given of its validity at extreme skew angles. Chladni figures are presented for the first six modes of plates with three different aspect ratios and six different skew angles, making a total of 108 cases. (Additional results can be inferred for two more plate aspect ratios, thus raising the total number of Chladni figures to 180.) Outstanding agreement is obtained between all the analytically derived nodal patterns from this work and the experimental work of other investigators. The dependence of frequency on the skew angle, the aspect ratio and the Poisson ratio is also investigated, and extensive results are presented in diagrammatic and graphical format.

  17. Perturbative study on the analytic continuation for generalized gravitational entropy

    Science.gov (United States)

    Prudenziati, Andrea

    2015-05-01

    We study the analytic continuation used by Lewkowycz and Maldacena to prove the Ryu-Takayanagi formula for entanglement entropy, which is the holographic dual of the trace of the β -power of the Euclidean time evolution operator when β ∈R . This will be done perturbatively using a weakly time dependent Hamiltonian, corresponding to a small shift of the dual static background. The perturbation will be set to either satisfy the Lewkowycz-Maldacena proposal or a different analytic continuation, depending on its periodicity conditions. The two choices will be tested by computing the associated entropies and compared to the Ryu-Takayanagi formula. To our surprise we discover that, at first order, they both correctly reproduce the associated entanglement entropy. Furthermore in both cases we find unexpected divergent contributions that we have to discard in order to fit the minimal area computation, and an additional requirement on the β dependence on the metric.

  18. Experimental and Analytical Study on the Lift Check Valve

    Energy Technology Data Exchange (ETDEWEB)

    Kim, J. H.; Song, C. S.; Kim, H. S.; Hong, S. C. [Korea Institute of Machinery and Materials, Daejeon (Korea, Republic of); Lee, W. H. [Samshin Limited Co., Chonan (Korea, Republic of)

    2009-10-15

    In general, the check valve mounted on the flow line is used for the purpose of protecting the pump and the related facility, making the flow path, and maintaining the pressure boundary during the operation mode change in steam power plant and nuclear power plant. Fig. 1 shows the example of check valve in nuclear power plant. Especially, the check valve mounted on safety feed system and nuclear safety system is operated to open state and has a role of acquiring enough fluid such as safety feed and auxiliary feed water in the Design Basis Accident. And the check valve is operated with enough sealing and with protecting steam hammer in normal operational mode. For this purpose, the check valve can be open easily and be maintained in the open state in case of small flow velocity. In this research, the experimental and analytical study on the check vale was performed. The flow coefficient and closure time were compared between the experimental and the analytical result by numerical simulation. The validation of the analytical method was performed.

  19. Analytical Study of Stress State in HTS Solenoids

    Energy Technology Data Exchange (ETDEWEB)

    Barzi, E.; Terzini, E.; /Fermilab

    2009-01-01

    A main challenge for high field solenoids made of in High Temperature Superconductor (HTS) is the large stress developed in the conductor. This is especially constraining for BSCCO, a brittle and strain sensitive ceramic material. To find parametric correlations useful in magnet design, analytical models can be used. A simple model is herein proposed to obtain the radial, azimuthal and axial stresses in a solenoid as a function of size, i.e. self-field, and of the engineering current density for a number of different constraint hypotheses. The analytical model was verified against finite element modeling (FEM) using the same hypotheses of infinite rigidity of the constraints and room temperature properties. FEM was used to separately evaluate the effect of thermal contractions at 4.2 K for BSCCO and YBCO coils. Even though the analytical model allows for a finite stiffness of the constraints, it was run using infinite stiffness. For this reason, FEM was again used to determine how much stresses change when considering an outer stainless steel skin with finite rigidity for both BSCCO and YBCO coils. For a better understanding of the actual loads that high field solenoids made of HTS will be subject to, we have started some analytical studies of stress state in solenoids for a number of constraint hypotheses. This will hopefully show what can be achieved with the present conductor in terms of self-field. The magnetic field (B) exerts a force F = B x J per unit volume. In superconducting magnets, where the field and current density (J) are both high, this force can be very large, and it is therefore important to calculate the stresses in the coil.

  20. PHARMACEUTICAL AND ANALYTICAL STUDY OF RASASINDURA CHANDRODAYA RASA

    Directory of Open Access Journals (Sweden)

    Ingole Rajesh.Kundlikrao

    2013-04-01

    Full Text Available Rasashatra is a science of minerals and its main aim to gain Drama, Artha, Kam, Moksha. In Rasashatra there are many methods to control or convert the mercury in the form which is beneficial to our body for curing the disease in certain dose which is called Murchchana. Kajjali, Parpati, Kupipawa rasayana, pottali rasayana all of these are the different methods for the murchchana of Parada. Among these Kupipakwa method is unique and somehow difficult. So here is an attempt in this study to prepare the Rasasindura and chandrodaya rasa by traditional method and do analytical study of obtained sample.

  1. Analytical and Experimental Study of Residual Stresses in CFRP

    Directory of Open Access Journals (Sweden)

    Chia-Chin Chiang

    2013-01-01

    Full Text Available Fiber Bragg Grating sensors (FBGs have been utilized in various engineering and photoelectric fields because of their good environment tolerance. In this research, residual stresses of carbon fiber reinforced polymer composites (CFRP were studied using both experimental and analytical approach. The FBGs were embedded inside middle layers of CFRP to study the formation of residual stress during curing process. Finite element analysis was performed using ABAQUS software to simulate the CFRP curing process. Both experimental and simulation results showed that the residual stress appeared during cooling process and the residual stresses could be released when the CFRP was machined to a different shape.

  2. Legislation and regulation

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2001-09-01

    This document presents the fulfilling of the Brazilian obligations under the Convention on Nuclear Safety. The Chapter 3 of the document contains some details about the Brazilian legislation and regulation, the legislative and regulatory framework, regulatory body and responsibility of the license holder.

  3. Dog bites in The Netherlands: A study of victims, injuries, circumstances and aggressors to support evaluation of breed specific legislation

    NARCIS (Netherlands)

    Cornelissen, J.M.R.; Hopster, H.

    2010-01-01

    As part of an evaluation of Dutch breed specific legislation, data were collected from dog bite victims (1078) and dog owners (6139) using Internet surveys. The incidence rate of dog bites and details of incidents (victims, injuries, circumstances and aggressors) are reported and the justification f

  4. Impact of smoke-free legislation on perinatal and infant mortality: A national quasi-experimental study

    NARCIS (Netherlands)

    J.V. Been (Jasper V.); D.F. Mackay (Daniel F.); C. Millett (Christopher); J.P. Pell (Jill P.); O.C.P. Schayck (Onno); A. Sheikh

    2015-01-01

    textabstractSmoke-free legislation is associated with improved early-life outcomes; however its impact on perinatal survival is unclear. We linked individual-level data with death certificates for all registered singletons births in England (1995-2011). We used interrupted time series logistic regre

  5. Motives and Outcomes of New Zealand Sign Language Legislation: A Comparative Study between New Zealand and Finland

    Science.gov (United States)

    Reffell, Hayley; McKee, Rachel Locker

    2009-01-01

    The medicalized interpretation of deafness has until recently seen the rights and protections of sign language users embedded in disability law. Yet the rights and protections crucial to sign language users centre predominantly on matters of language access, maintenance and identity. Legislators, motivated by pressure from sign language…

  6. PHARMACOGNOSTIC AND ANALYTICAL STUDY OF DASHANGA KWATHA: AN AYURVEDIC FORMULATION

    Directory of Open Access Journals (Sweden)

    Baragi Umapati C.

    2012-02-01

    Full Text Available This present study deals with pharmacognostic and analytical study of Dashanga Kwatha (A known Ayurvedic formulation used in Non Ulcer Dyspepsia. Here attempt was made to find out the authenticity of the drugs used in the formulation. This forms the first step in the standardization of a formulation. Herbal drugs, singularly or in combinations, contain numerous compounds in complex matrices in which no single active constituent is responsible for the overall efficacy. The pharmacognostic investigations were carried out in terms of organoleptic, microscopic, macroscopic examinations and the analytical study was carried in terms of physicochemical, phytochemical analysis and HPTLC examination by optimizing the solvent systems. Microbial load of dried powder material was determined to avoid the contamination and for safety of crude drug. The present work will provide referential information for the correct identification and standardization of the crude drug and will ensure the use of only genuine and uniform material in preparation of Dashanga Kwatha in future. These findings will be useful in establishing quality control standards and standardization of Dashanga Kwatha in future.

  7. Analytical and experimental studies of wakes behind circularly capped bubbles

    Science.gov (United States)

    Bessler, W. F.

    The wakes behind circularly capped bubbles are examined by means of an experimental and analytical study. A single two-inch diameter bubble is injected into a six by three foot fluid column, one half inch thick, producing an essentially two-dimensional flow. Aspirin powder placed in the fluid column just prior to bubble release highlights the structure of the flow field before dissolving. High speed film and sequenced photographs are taken to document the observed results. Pressure-time measurements are made with sensitive capacitive transducers mounted in the rear column wall and are synchronized with photographs using a high speed clock. Experimental fluids, prepared by mixing water and glycerine in varying proportions, are used to study the effects of viscosity on bubble shape and wake structure. Testing is performed over a range of Reynolds numbers from 14 to 29,655 which includes the transition from circularly capped to ellipsoidal bubble shape. Experimental data is reduced and summarized in convenient dimensionless form to permit comparison with analytical predictions.

  8. Analytical study of the critical behavior of the nonlinear pendulum

    Science.gov (United States)

    Lima, F. M. S.

    2010-11-01

    The dynamics of a simple pendulum consisting of a small bob and a massless rigid rod has three possible regimes depending on its total energy E: Oscillatory (when E is not enough for the pendulum to reach the top position), "perpetual ascent" when E is exactly the energy needed to reach the top, and nonoscillatory for greater energies. In the latter regime, the pendulum rotates periodically without velocity inversions. In contrast to the oscillatory regime, for which an exact analytic solution is known, the other two regimes are usually studied by solving the equation of motion numerically. By applying conservation of energy, I derive exact analytical solutions to both the perpetual ascent and nonoscillatory regimes and an exact expression for the pendulum period in the nonoscillatory regime. Based on Cromer's approximation for the large-angle pendulum period, I find a simple approximate expression for the decrease of the period with the initial velocity in the nonoscillatory regime, valid near the critical velocity. This expression is used to study the critical slowing down, which is observed near the transition between the oscillatory and nonoscillatory regimes.

  9. Methodological issues of confounding in analytical epidemiologic studies.

    Science.gov (United States)

    Hajian Tilaki, Karimollah

    2012-01-01

    Confounding can be thought of as mixing the effect of exposure on the risk of disease with a third factor which distorts the measure of association such as risk ratio or odds ratio. This bias arises because of complex functional relationship of confounder with both exposure and disease (outcome). In this article, we provided a conceptual framework review of confounding issues in epidemiologic studies, in particular in observational studies and nonrandomized experimental studies. We have shown in 2 by 2 tables with analytical examples how the index of association will be distorted when confounding is present. The criteria, source of confounding and several points in confounding issues have been addressed. The advantages and disadvantages of several strategies for control of confounding have been discussed.

  10. Factor analytic study of the personality of female methadone outpatients.

    Science.gov (United States)

    Duthie, R B

    1980-10-01

    Several researchers have examined the personality of chemical abusers by employing a multivariate clustering strategy. All of these studies focused on hospitalized inpatient addicts. Only one included females in the study. The purpose of this study is to examine the transposed data factor analytically derived profiles of female methadone maintained outpatients. All clients were given the Mini-Mult short form version of the Minnesota Multiphasic Personality Inventory. Seventy profiles were randomly selected from 130 female profiles. Program Factor of the Analyses of Behavioral Sciences Data program series was employed in statistically processing this data. Descriptions of the five factors are provided. Most of the profile types seem to fall into the normal or personality disordered categories. Forth-two percent of the profiles were normal, 24% were Personality Disorders, 6% were Neurotic, and 28% were unclassified using five factors.

  11. Legislative Districts - 1990

    Data.gov (United States)

    Kansas Data Access and Support Center — Each coverage contains a COVER-ID field that defines the House or Senate district number. Kansas House and Senate districts were created by the Legislative Research...

  12. Fundamental Soviet Labor Legislation

    Science.gov (United States)

    Brown, Emily Clark

    1973-01-01

    The crucial assumption underlying new Soviet legislation is the existence of common interest of workers and management in production; stressing cooperation, consultation, and creative participation and an increase in the role of trade unions in decision making. (Editor)

  13. A fundamental study on analyte adsorption onto metallophthalocyanines

    Science.gov (United States)

    Tran, Ngoc L.

    A Web of Science search shows that the number of articles found in the literature pertaining to Phthalocyanines has doubled in the last eight years alone in comparison to all previous years. Based on the types of articles found, it is clear that the potential applications for Metal Phthalocyanines (MPcs) are multifaceted. Initially, MPcs were used as blue and green dye products. Subsequent interest in MPcs increased due to its similarities to the biologically relevant porphyrin. More recently, MPcs have been integrated into information storage systems, liquid crystal color displays and as the active material in semiconductor devices. Their diverse electronic properties, chemical and thermal robustness and ease of deposition (spin coating and organic molecular beam epitaxy) make them an attractive and economical candidate for use in chemical sensors. Although the literature contains many studies pertaining to MPcs, most are focused on the applications aspect of the material or on the fundamental understanding of the electronic properties of the Pcs in the absence of an analyte. This dissertation attempts to obtain an atomic level understanding of the fundamental mechanisms in which analytes interact with MPcs.

  14. Analytic study of a coupled Kerr-SBS system

    Science.gov (United States)

    Conte, Robert; Gandarias, Maria Luz

    2017-01-01

    In order to describe the coupling between the Kerr nonlinearity and the stimulated Brillouin scattering, Mauger et al. recently proposed a system of partial differential equations in three complex amplitudes. We perform here its analytic study by two methods. The first method is to investigate the structure of singularities, in order to possibly find closed form single-valued solutions obeying this structure. The second method is to look at the infinitesimal symmetries of the system in order to build reductions to a lesser number of independent variables. Our overall conclusion is that the structure of singularities is too intricate to obtain closed form solutions by the usual methods. One of our results is the proof of the nonexistence of traveling waves.

  15. Analytic study of a coupled Kerr-SBS system

    CERN Document Server

    Conte, Robert

    2016-01-01

    In order to describe the coupling between the Kerr nonlinearity and the stimulated Brillouin scattering, Mauger et alii recently proposed a system of partial differential equations in three complex amplitudes. We perform here its analytic study by two methods. The first method is to investigate the structure of singularities, in order to possibly find closed form singlevalued solutions obeying this structure. The second method is to look at the infinitesimal symmetries of the system in order to build reductions to a lesser number of independent variables. Our overall conclusion is that the structure of singularities is too intricate to obtain closed form solutions by the usual methods. One of our results is the proof of the nonexistence of traveling waves.

  16. Analytical studies of spectrum broadcast structures in quantum Brownian motion

    Science.gov (United States)

    Tuziemski, J.; Korbicz, J. K.

    2016-11-01

    Spectrum broadcast structures are a new and fresh concept in the quantum-to-classical transition, introduced recently in the context of decoherence and the appearance of objective features in quantum mechanics. These are specific quantum state structures, responsible for the objectivization of the decohered state of a system. Recently, they have been demonstrated by means of the well-known quantum Brownian motion model of the recoilless limit (infinitely massive central system), as the principal interest lies in information transfer from the system to the environment. However, a final analysis relied on numerics. Here, after a presentation of the main concepts, we perform analytical studies of the model, showing the timescales and the efficiency of the spectrum broadcast structure formation. We consider a somewhat simplified environment, being random with a uniform distribution of frequencies.

  17. Numerical and Analytical Study of Bladder-Collapse Flow

    Directory of Open Access Journals (Sweden)

    M. Tziannaros

    2012-01-01

    Full Text Available Understanding and quantifying more of the workings of the human bladder motivates the present industry-supported study. The bladder performance in terms of the urinary velocities produced tends to be dominated by the internal fluid dynamics involved, in the sense that the bladder wall moves in a body-prescribed way. The enclosed urine flow responds to this wall movement, and there is relatively little feedback on the wall movement. Combined computational work and special-configuration analysis are applied over a range of configurations including computational and analytical results for the circle and sphere as basic cases; models of more realistic bladder shapes; the end stage of the micturition process where the bladder is relatively squashed down near the urethral sphincter and localised peak speeds arise. The combination of approaches above can be extended to allow for interaction between wall shape and flow properties such as internal pressure if necessary.

  18. Analytical study of surface states caused by the edge decoration

    Institute of Scientific and Technical Information of China (English)

    Zhao Yuan-Yuan; Li Wei; Tao Rui-Bao

    2012-01-01

    Analytical studies of the effect of edge decoration on the energy spectrum of semi-infinite one-dimensional (1D) model and zigzag edged graphene (ZEG) are presented by means of transfer matrix method,in the frame of which the conditions for the existence of edge states are determined.For 1D model,the zero-energy surface state occurs regardless of whether the decorations exist or not,while the non-zero-energy surface states can be induced and manipulated through adjusting the edge decoration.On the other hand,the case for the semi-infinite ZEG model with nearestneighbour interaction is discussed in the analogous way.The non-zero-energy surface states can be induced by the edge decoration and moreover,the ratio between the edge hopping and the bulk hopping amplitudes should be within a certain threshold.

  19. An analytical study of electric vehicle handling dynamics

    Science.gov (United States)

    Greene, J. E.; Segal, D. J.

    1979-01-01

    Hypothetical electric vehicle configurations were studied by applying available analytical methods. Elementary linearized models were used in addition to a highly sophisticated vehicle dynamics computer simulation technique. Physical properties of specific EV's were defined for various battery and powertrain packaging approaches applied to a range of weight distribution and inertial properties which characterize a generic class of EV's. Computer simulations of structured maneuvers were performed for predicting handling qualities in the normal driving range and during various extreme conditions related to accident avoidance. Results indicate that an EV with forward weight bias will possess handling qualities superior to a comparable EV that is rear-heavy or equally balanced. The importance of properly matching tires, suspension systems, and brake system front/rear torque proportioning to a given EV configuration during the design stage is demonstrated.

  20. Thermal analytical study of polyamide copolymer/Surlyn Ionomers Blends

    Energy Technology Data Exchange (ETDEWEB)

    Qin, C.; Ding, Y.P. [Baxter Healthcare Corp., Round Lake, IL (United States)

    1993-12-31

    Thermal analytical technique was used as a screening method to study polyamide(Nylon)/ethylene-co-methacrylic acid copolymer-based ionomer(Surlyn)blends. The retardation of crystallization process from molten state of Nylon-12 by the existence of the ionomer was observed, but the crystallization of Nylon-12 can not be thwarted even at high concentration of ionomers. Zinc ionomers shows stronger effect than sodium ionomers. A Nylon copolymer, polyamide-6,6-co-polyamide-6,10, was used to blend with different ionomers and the crystallization process from molten state of Nylon copolymer could be thwarted at high concentration of zinc ionomer even at very cooling rate. Interesting cold crystallization behavior of polyamide copolymer was observed during second DSC heating cycle in the temperature range of the melting process of ionomer.

  1. Analytical study of seashell using laser-induced breakdown spectroscopy

    Science.gov (United States)

    Ying, LI; Yanhong, GU; Ying, Zhang; Yuandong, LI; Yuan, LU

    2017-02-01

    Seashell has been applied as an indicator for ocean research and element analysis of the seashell is used to track biological or environmental evolution. In this work, laser-induced breakdown spectroscopy (LIBS) was applied for elementary analysis of an ezo scallop-shell, and a graphite enrichment method was used as the assistance. It was found that LIBS signal intensity of Ca fluctuated less than 5%, in spite of the sampling positions, and Sr/Ca was related to the shell growth. A similar variation was also found when using a direct LIBS analysis on the shell surface, and it might be more practicable to track shell growth by investigating Sr/Ca ratio with Sr ionic line at 421.6 nm. The obtained results prove that calcium (Ca) is qualified as an internal reference for shell analysis, and LIBS is a potential analytical method for seashell study.

  2. Water or realistic compositions in proton radiotherapy? An analytical study.

    Science.gov (United States)

    Rasouli, Fatemeh S; Masoudi, S Farhad

    2017-03-01

    Pre-clinical tests and simulation studies for radiotherapy are generally carried out using water or simplified materials. Investigating the effects of defining compositionally realistic media in proton transport studies was the objective of this work. Accurate modeling of the Bragg curve is a fundamental requirement for such a study. An equation previously validated by experiments provides an appropriate analytical method for proton dose calculation in depth of the target. Owing to the dependency on protons ranges and the probability of undergoing non-elastic nuclear interactions (NNI), this formula comprises three parameters with values specified for initial proton energy and for the target material. As a result, knowledge of the depth-dose distribution using this analytical model is limited to the materials for which the data has been provided in nuclear data tables. In this study, we used our general formulas for calculating the protons ranges and the probability of undergoing NNI in desired compounds and mixtures with an arbitrary number of constituent elements. Furthermore, the protons dose distribution in the depth of these targets was leading off with determining the parameters appeared in the employed model using our mathematically easy to handle relations. For a number of tissues which may be of interest in proton radiotherapy studies but are missing in reference data tables, the mentioned parameters were calculated. Moreover, the resultant values for the protons ranges and the probability of undergoing NNIs were compared with those in water. The results showed that the differences between the position of Bragg peaks in water and realistic media considered in this study were energy dependent, and ranged between a few millimeters. For proton beams of arbitrary chosen initial energies, the maximum dose delivered to the realistic media varied between about -0.02-4.42% in comparison with that to water. The effects observed (both in penetration and in the

  3. The Legislation Study for Patient Safety in China%中国病人安全立法研究

    Institute of Scientific and Technical Information of China (English)

    黄清华

    2012-01-01

    Patient safety accounts for the first place among the new medical reform policy's long-term goals.Solving the problem of patient's safety issues need to have a patient safety culture environment. To this end, patient safety legislation for creating a good institutional framework and institution-cultural environment is required. The article briefly describes the patient safety legislations in Denmark, the United States and other countries, and then, envisaging the institutional arrangements of the patient safety legislation in China from following aspects: the definition of patient safety events, as well as the establishment of legal systems on patient safety events network report, patient safety event voluntary report, anonymous report and privacy protection, patient safety database, patient safety organizations and government support .%在新医改政策所要达成的长远目标中,病人安全占其首位.解决中国病人安全问题,需要有一个病人安全文化环境.为此,必须重视病人安全立法,创造一个好的制度框架和制度文化环境.本文介绍了丹麦、美国等国家病人安全立法的情况,进而从病人安全事件的定义,以及建立病人安全事件网络报告制度、病人安全事件自愿报告制度、报告者匿名报告与隐私保护制度、病人安全数据库法律制度、病人安全组织法律制度和政府支持法律制度等方面,提出中国病人安全立法的制度安排.

  4. Seatbelt research and legislation in The Netherlands.

    NARCIS (Netherlands)

    Kampen, L.T.B. van

    1985-01-01

    Research projects such as detailed accident studies and seatbelt surveys have been carried out by SWOV and the results reported to the government and used to develop seatbelt legislation in the Netherlands. The layout of current seatbelt legislation and the compliance details are discussed. Legislat

  5. Analytical study for deformability of laminated sheet metal

    Directory of Open Access Journals (Sweden)

    Mohammed H. Serror

    2013-01-01

    Full Text Available While a freestanding high-strength sheet metal subject to tension will rupture at a small strain, it is anticipated that lamination with a ductile sheet metal will retard this instability to an extent that depends on the relative thickness, the relative stiffness, and the hardening exponent of the ductile sheet. This paper presents an analytical study for the deformability of such laminate within the context of necking instability. Laminates of high-strength sheet metal and ductile low-strength sheet metal are studied assuming: (1 sheets are fully bonded; and (2 metals obey the power law material model. The effect of hardening exponent, volume fraction and relative stiffness of the ductile component has been studied. In addition, stability of both uniform and nonuniform deformations has been investigated under plane strain condition. The results have shown the retardation of the high-strength layer instability by lamination with the ductile layer. This has been achieved through controlling the aforementioned key parameters of the ductile component, while the laminate exhibits marked enhancement in strength–ductility combination that is essential for metal forming applications.

  6. Accidental politicians: How randomly selected legislators can improve parliament efficiency

    Science.gov (United States)

    Pluchino, Alessandro; Garofalo, Cesare; Rapisarda, Andrea; Spagano, Salvatore; Caserta, Maurizio

    2011-10-01

    We study a prototypical model of a Parliament with two Parties or two Political Coalitions and we show how the introduction of a variable percentage of randomly selected independent legislators can increase the global efficiency of a Legislature, in terms of both the number of laws passed and the average social welfare obtained. We also analytically find an “efficiency golden rule” which allows to fix the optimal number of legislators to be selected at random after that regular elections have established the relative proportion of the two Parties or Coalitions. These results are in line with both the ancient Greek democratic system and the recent discovery that the adoption of random strategies can improve the efficiency of hierarchical organizations.

  7. Accidental Politicians: How Randomly Selected Legislators Can Improve Parliament Efficiency

    CERN Document Server

    Pluchino, A; Rapisarda, A; Spagano, S; Caserta, M

    2011-01-01

    We study a prototypical model of a Parliament with two Parties or two Political Coalitions and we show how the introduction of a variable percentage of randomly selected independent legislators can increase the global efficiency of a Legislature, in terms of both number of laws passed and average social welfare obtained. We also analytically find an "efficiency golden rule" which allows to fix the optimal number of legislators to be selected at random after that regular elections have established the relative proportion of the two Parties or Coalitions. These results are in line with both the ancient Greek democratic system and the recent discovery that the adoption of random strategies can improve the efficiency of hierarchical organizations.

  8. Differential impact of local and federal smoke-free legislation in Mexico: a longitudinal study among adult smokers.

    Science.gov (United States)

    Thrasher, James F; Swayampakala, Kamala; Arillo-Santillán, Edna; Sebrié, Ernesto; Walsemann, Katrina M; Bottai, Matteo

    2010-01-01

    To assess the impact of Mexico City and federal smoke-free legislation on secondhand tobacco smoke (SHS) exposure and support for smoke-free laws. Pre- and post-law data were analyzed from a cohort of adult smokers who participated in the International Tobacco Control (ITC) Policy Evaluation Suvey in four Mexican cities. For each indicator, we estimated prevalence, changes in prevalence, and between-city differences in rates of change. Self-reported exposure to smoke-free media campaigns generally increased more dramatically in Mexico City. Support for prohibiting smoking in regulated venues increased overall, but at a greater rate in Mexico City than in other cities. In bars and restaurants/cafés, self-reported SHS exposure had significantly greater decreases in Mexico City than in other cities; however, workplace exposure decreased in Tijuana and Guadalajara, but not in Mexico City or Ciudad Juárez. Although federal smoke-free legislation was associated with important changes smoke-free policy impact, the comprehensive smoke-free law in Mexico City was generally accompanied by a greater rate of change.

  9. Inertial drives for micro- and nanorobots: analytical study

    Science.gov (United States)

    Buechi, Roland; Zesch, Wolfgang; Codourey, Alain; Siegwart, Roland Y.

    1995-12-01

    The need for high precision robots dedicated to the assembly of microsystems has led to the design of new kinds of actuators able to reach very high positional accuracy over large distances. Among these, inertial sliders have received considerably interest in the last years. They have the advantage of being based on a simple principle that leads to a simple mechanical design. However, because they are based on the nonlinearity of friction, it is not easy to predict their stepsize repeatability. In order to understand the most important parameters affecting the precision of inertial drives, a theoretical study of a 1 degree of freedom inertial slider has been established. Analytical formulas describing the influence of different parameters, such as static and dynamic friction and mass distribution, have been developed. The effect of applied functions (sawtooth and parabolic), have also been studied. The theoretical cut off frequency has been found for each of the different waveforms, allowing us to predict the maximal and minimal working frequencies for the system. Thus, for each curve form, the repeatability of inertial sliders can be evaluated taking into account the uncertainties in the friction coefficients. The best suited waveforms for given constraints can therefore be selected. Simulations carried out from this have been successfully compared to experimental results.

  10. a Multidisciplinary Analytical Framework for Studying Active Mobility Patterns

    Science.gov (United States)

    Orellana, D.; Hermida, C.; Osorio, P.

    2016-06-01

    Intermediate cities are urged to change and adapt their mobility systems from a high energy-demanding motorized model to a sustainable low-motorized model. In order to accomplish such a model, city administrations need to better understand active mobility patterns and their links to socio-demographic and cultural aspects of the population. During the last decade, researchers have demonstrated the potential of geo-location technologies and mobile devices to gather massive amounts of data for mobility studies. However, the analysis and interpretation of this data has been carried out by specialized research groups with relatively narrow approaches from different disciplines. Consequently, broader questions remain less explored, mainly those relating to spatial behaviour of individuals and populations with their geographic environment and the motivations and perceptions shaping such behaviour. Understanding sustainable mobility and exploring new research paths require an interdisciplinary approach given the complex nature of mobility systems and their social, economic and environmental impacts. Here, we introduce the elements for a multidisciplinary analytical framework for studying active mobility patterns comprised of three components: a) Methodological, b) Behavioural, and c) Perceptual. We demonstrate the applicability of the framework by analysing mobility patterns of cyclists and pedestrians in an intermediate city integrating a range of techniques, including: GPS tracking, spatial analysis, auto-ethnography, and perceptual mapping. The results demonstrated the existence of non-evident spatial behaviours and how perceptual features affect mobility. This knowledge is useful for developing policies and practices for sustainable mobility planning.

  11. Analytical study of Saint Gregory Nazianzen Icon, Old Cairo, Egypt

    Science.gov (United States)

    Issa, Yousry M.; Abdel-Maksoud, Gomaa; Magdy, Mina

    2015-11-01

    The study aims to evaluate the state of icon through characterization of the icon layers (ground, paint and varnish layers) and to provide tools for assessment the impact of aging and environmental conditions in order to produce some solutions for conservation of the icon. Analytical techniques used in this study were attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR), field emission scanning electron microscope-energy dispersive X ray spectroscopy (FESEM-EDX) and amino acid analyzer (AAA). The results obtained revealed that gypsum and lead white were used for ground layer. The identified pigments were lamp carbon black, brown ochre, Prussian blue, yellow ochre and gold leaf. Egg yolk was the binder used with most of pigments and animal glue was used with gold color. The varnish used was shellac resin. It was concluded that stable pigments gave permanent colors and environmental conditions had an influence on promotion of oxidation process. Auto-oxidation of binder and varnish materials occurred by the action of pigment components and light result in cracking of the paint film and fading of the varnish glaze.

  12. An analytical study of various telecomminication networks using markov models

    Science.gov (United States)

    Ramakrishnan, M.; Jayamani, E.; Ezhumalai, P.

    2015-04-01

    The main aim of this paper is to examine issues relating to the performance of various Telecommunication networks, and applied queuing theory for better design and improved efficiency. Firstly, giving an analytical study of queues deals with quantifying the phenomenon of waiting lines using representative measures of performances, such as average queue length (on average number of customers in the queue), average waiting time in queue (on average time to wait) and average facility utilization (proportion of time the service facility is in use). In the second, using Matlab simulator, summarizes the finding of the investigations, from which and where we obtain results and describing methodology for a) compare the waiting time and average number of messages in the queue in M/M/1 and M/M/2 queues b) Compare the performance of M/M/1 and M/D/1 queues and study the effect of increasing the number of servers on the blocking probability M/M/k/k queue model.

  13. Studies on Legislation of Preventing and Controlling of Invasive Alien Species%防治外来物种入侵立法研究

    Institute of Scientific and Technical Information of China (English)

    刘欣庆; 李景明; 孙玉芳

    2012-01-01

    With the rapid economic development as well as continuously strengthening of international exchanges, the invasion of alien species is becoming increasingly serious and caused significant harm to the country's economic, cultural, ecological and human health. By analysis of legislation of international community for preventing and controlling invasive alien species, China's legislative problems of preventing and controlling invasive alien species were studied. Suggestions to modify current laws and regulations were proposed for comprehensive construction of China's legislation of prevention and control of alien invasive species.%随着经济的快速发展以及国际交流的不断加强,外来物种入侵的现象日益严重,给我国的经济、文化、生态以及人类健康造成了重大的危害。文章通过分析国际社会外来物种入侵立法情况,研究了我国在防治外来物种入侵立法方面存在的问题,并对现有法律法规中的有关内容提出了修改和完善的建议,以期为全面加强我国防治外来物种入侵立法提供借鉴。

  14. A Comprehensive Feasibility Study of Marine CSEM Using Analytical Calculation

    Science.gov (United States)

    Furukawa, T.; Lee, K. H.; Yamane, K.

    2010-12-01

    The main purpose of marine controlled source electromagnetic (CSEM) sounding is to find subsurface resistive reservoir and thus reduce risk before drilling. The CSEM response, usually in the form of electric field, recorded by seafloor receivers along one or several survey lines have been used to detect subsurface resistors and rank prospects initially defined from seismic data. The CSEM forward modeling plays an important role in sensitivity studies, survey design and data interpretation. A number of 3-D modeling techniques has recently been reported, but only 1-D forward modeling provides analytical solutions using numerical integration. Based on EM1D originally developed at Lawrence Berkeley National Laboratory, we made some improvements in the following subjects. First, the accuracy of the solution has been improved especially when the source-receiver separation (offset) is large. The need for better accuracy stems from the fact that the sensitivity requirement in detecting a thin resistive layer in marine CSEM survey, potential indicator of hydrocarbon zone, is on the order of 10-15Volt/m. This is a very small number to deal with requiring highly accurate solutions. Second, transverse isotropy in electrical resistivity has been implemented so that one or more layers can have anisotropy to simulate vertically compressed sedimentary sections. Using such modified code, we investigate the sensitivity of a thin resistive, and/or transversely isotropic, hydrocarbon reservoir to marine CSEM methods. Both the time-domain and the frequency-domain responses are investigated.

  15. Numerical and analytic study of problems of photonic crystals theory

    Science.gov (United States)

    Kunyansky, Leonid Arkadievich

    1998-11-01

    Theory of classical waves in periodic high contrast photonic and acoustic media leads to the following spectral problem:-/Delta u = /lambda/varepsilon u,where ɛ(x) is a periodic function (dielectric constant) which assumes a large value ɛ near a periodic graph Σ in IR2 and is equal to 1 otherwise. In this thesis we conduct numerical and analytical study of this problem. The high contrast asymptotics for the second problem naturally leads to pseudo-differential operators of the Dirichlet-to-Neumann type on graphs and on more general structures. We have discovered several new spectral effects for these operators. Among them 'almost discreteness' of the spectrum in the case of a disconnected graph and existence of 'almost localized' waves in some connected purely periodic structures. Numerical results of the above problems is carried out in this work using an algorithm closely related to the family of the indirect boundary element methods. The results of this research were presented at AMS Meetings in Columbia, MO (November, 1996), Corvallis, OR (April, 1997), Albuquerque, NM (November, 1997), Louisville, KY (March, 1998), and Conference on Applied Mathematics, Edmond, OK (February, 1998). They are also partially described in the forthcoming publication (34).

  16. Systematic analytical characterization of new psychoactive substances: A case study.

    Science.gov (United States)

    Lobo Vicente, Joana; Chassaigne, Hubert; Holland, Margaret V; Reniero, Fabiano; Kolář, Kamil; Tirendi, Salvatore; Vandecasteele, Ine; Vinckier, Inge; Guillou, Claude

    2016-08-01

    New psychoactive substances (NPS) are synthesized compounds that are not usually covered by European and/or international laws. With a slight alteration in the chemical structure of existing illegal substances registered in the European Union (EU), these NPS circumvent existing controls and are thus referred to as "legal highs". They are becoming increasingly available and can easily be purchased through both the internet and other means (smart shops). Thus, it is essential that the identification of NPS keeps up with this rapidly evolving market. In this case study, the Belgian Customs authorities apprehended a parcel, originating from China, containing two samples, declared as being "white pigments". For routine identification, the Belgian Customs Laboratory first analysed both samples by gas-chromatography mass-spectrometry and Fourier-Transform Infrared spectroscopy. The information obtained by these techniques is essential and can give an indication of the chemical structure of an unknown substance but not the complete identification of its structure. To bridge this gap, scientific and technical support is ensured by the Joint Research Centre (JRC) to the European Commission Directorate General for Taxation and Customs Unions (DG TAXUD) and the Customs Laboratory European Network (CLEN) through an Administrative Arrangement for fast recognition of NPS and identification of unknown chemicals. The samples were sent to the JRC for a complete characterization using advanced techniques and chemoinformatic tools. The aim of this study was also to encourage the development of a science-based policy driven approach on NPS. These samples were fully characterized and identified as 5F-AMB and PX-3 using (1)H and (13)C nuclear magnetic resonance (NMR), high-resolution tandem mass-spectrometry (HR-MS/MS) and Raman spectroscopy. A chemoinformatic platform was used to manage, unify analytical data from multiple techniques and instruments, and combine it with chemical and

  17. Analytical study of ultra-short pulse reflectometry

    Energy Technology Data Exchange (ETDEWEB)

    Bruskin, L.G. [Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Mukoyama, Nakamachi, Naka-gun, Ibaraki-ken (Japan)]. E-mail: bruskinl@fusion.naka.jaeri.go.jp; Mase, A.; Yamamoto, A.; Kogi, Y. [Kyushu University, Advanced Science and Technology Center for Cooperative Research, Fukuoka-ken, Kasuga (Japan)

    2001-10-01

    The results of an analytical treatment of the time-dependent 2D full-wave equation are presented here for the case of ultra-short pulse (USP) reflectometry. We consider several models of the plasma geometry, namely linear and nonlinear slab models, as well as a 2D plasma density profile with cylindrical symmetry. The latter model is more realistic when compared to the 1D stratified plasma models previously employed in all the analytical, and most numerical, treatments, since the plasma in fusion toroidal devices, mirror machines and plasma processing chambers can often be considered axially symmetric on the scale relevant to microwave reflectometry. Based on the results of analytical modelling, a signal record analysis method of profile reconstruction is proposed. The method has the advantage of using raw signal records instead of poorly localized frequency modes, which makes it robust for the profile measurements using USP reflectometry. (author)

  18. Analytical and experimental study of vibrations in a gear transmission

    Science.gov (United States)

    Choy, F. K.; Ruan, Y. F.; Zakrajsek, J. J.; Oswald, F. B.; Coy, J. J.

    1991-01-01

    An analytical simulation of the dynamics of a gear transmission system is presented and compared to experimental results from a gear noise test rig at NASA Lewis. The analytical procedure developed couples the dynamic behaviors of the rotor-bearing-gear system with the response of the gearbox structure. Transient and steady-state vibrations of the gearbox system are presented in the time and frequency domains. The vibration characteristics of a simple single-mesh-gear noise test rig are modeled. The numerical simulations are compared to experimental data measured under typical operating conditions. The system natural frequencies, peak vibration amplitudes, and gear mesh frequencies are generally in good agreement.

  19. [Pregnancy-Associated Breast Cancer: An analytical observational study].

    Science.gov (United States)

    Baulies, Sonia; Cusidó, Maite; Tresserra, Francisco; Rodríguez, Ignacio; Ubeda, Belén; Ara, Carmen; Fábregas, Rafael

    2014-03-04

    Pregnancy-associated breast cancer is defined as breast cancer diagnosed during pregnancy and up to one year postpartum. A retrospective, analytical, observational study comparing 56 cases of breast cancer and pregnancy (PABC) diagnosed 1976-2008 with 73 patients with breast cancer not associated with pregnancy (non-PABC) was performed. Demographic data, prognostic factors, treatment and survival were reviewed and compared. The prevalence of PABC in our center is 8.3/10,000. The highest frequency (62%) appeared during the postpartum period. The stages are higher in PABC, being 31.3% advanced (EIII and EIV) in PABC versus 13.3% in non-PABC (P < .05). Regarding prognostic factors, 27.3% in PABC had a tumoral grade 3 versus 15.8% of non-PABC. Among women with PABC, 33.3% had negative estrogen receptors, 48.7% negative progesterone receptors and 34.5% positive Her2Neu compared with 22.2, 24.1 and 31%, respectively of non-PABC patients. Finally, positive lymph nodes were found in 52.8% of PABC, versus 33.8% non-PABC (P < .05). Overall and disease-free survival rate at 5 years for PABC was 63.7 and 74.2%, respectively. The poorer survival observed is possibly due to the presence of adverse prognostic features such as lymph node metastases, negative hormone receptors, tumoral grade iii, as well as a delay in diagnosis with a higher rate of advanced stages. Copyright © 2012 Elsevier España, S.L. All rights reserved.

  20. Quality of legislation following a transition from really existing socialism to capitalism: a case study of general clauses in Polish private law

    NARCIS (Netherlands)

    Mańko, R.; Rozenfelds, J.

    2012-01-01

    Quality of legislation is understood as its fitness for a given purpose. In general, legislative acts as texts of legal culture can be said to fulfill two main functions: regulatory (instrumental) and ideological (symbolic). Quality of legislation becomes a particular challenge during a period of ra

  1. Knowledge on legislation of abortion and experience of abortion among female youth in Nepal: A cross sectional study.

    Science.gov (United States)

    Adhikari, Ramesh

    2016-04-27

    Abortion has been legal in Nepal since 2002 and the country has made striking progress in rolling out induced abortion services. It led to well-known changes in reproductive behavior, however knowledge about legislation and abortion experience by female youth has been least investigated. This paper is an attempt to examine knowledge about legislation of abortion and abortion experiences among female youth in Nepal. This paper uses data from the Nepal Demographic and Health Survey (NDHS 2011). The analysis is confined to female youth aged 15-24 (n = 5050). Both bivariate and multivariate analyses have been performed to describe the knowledge about law and experience of abortion. The bivariate analysis (chi-square test) was applied to examine the association between dependent variables and female youth's demographic, socioeconomic, and cultural characteristics. Besides bivariate analysis, the net effect of each independent variable on the dependent variable after controlling for the effect of other predictors has also been measured through multivariate analysis (logistic regression). Only two-fifth (41%) female youth was aware of abortion legislation in the country. Knowledge on at least one condition of abortion law is even lower (21%). Less than two percent (1.5%) female youth reported that they ever had an abortion. The multivariate analysis found that the knowledge and experience of abortion varied with different settings. Youth aged 20-24 [adjusted odds ratio (aOR) = 1.3; 95% CI 1.7-5.0)], who have higher education (primary aOR = 1.89, ; 95% CI 1.5-2.5 secondary aOR = 4.6; 95% CI 3.7-5.9), who were from rich households (aOR = 1.5; 95% CI 1.2-1.7), who had high autonomy (aOR = 1.29; 95% CI 1.02-1.64) were more likely to be aware compared to their counterparts about legislation of abortion. In the other hand, female from Dalit (aOR = 0.55; 95% CI 0.5-0.7 and Janajati aOR = 0.72; 95% CI 0.6-0.8) caste, who were married (aOR = 0

  2. Draft Legislative Proposals

    DEFF Research Database (Denmark)

    Turcan, Romeo V.; Bugaian, Larisa; Niculita, Angela;

    2015-01-01

    This chapter proposes legislative proposals for restructuring and modernization of Higher Education (HE) in Moldova. It is based on (1) the analysis of the institutional university autonomy in Moldova; (2) the benchmark analysis of institutional university autonomy in Denmark, Lithuania, Romania......, Scotland and Sweden; (3) the on-going analysis of the current situation of institutional university autonomy in Moldova, including the on-going analysis and review of the Code of Education; and (4) the European Commission agenda for the modernization of higher education. The chapter identifies...... the objectives of the legislative proposals; discusses risks and challenges that HE in Moldova faces today and in the next 10-15 years; identifies expected outcomes; identifies basic principles on which the process will be founded; proposes a new structure for the HE sector; offers an example...

  3. 2013 environmental health legislation.

    Science.gov (United States)

    Farquhar, Doug; Ellis, Amy C

    2013-10-01

    The NEHA Government Affairs program has a long and productive association with the National Conference of State Legislatures (NCSL). The organizations have worked together on any number of legislative and policy areas that directly impact the environmental health profession. One of the keys to the successes of the NEHA/NCSL collaboration has been the recognition of the fact that often some of the most significant legislation and policy initiatives related to environmental public health occur in state legislatures. The states have, in a very real sense, been the innovators in developing new programs and practices. In recognition of this fact, we have asked NCSL to provide occasional overviews of state environmental public health legislative activity, covering topics that are of the most pressing public concern. Doug Farquhar, program director for NCSI's Environmental Health Program, has worked with NCSL since 1990. Mr. Farquhar directs development, management, and research for the Environmental Health Program. These projects encompass consultation and policy analysis of state and federal policies and statutes, regulations, and programs regarding environmental and related topics for state legislatures and administrative programs. Amy Ellis is a law clerk for NCSL within the Environment, Energy, and Transportation Group. As a law clerk she has researched a wide variety of environmental health policies. She is expected to obtain her JD from the University of Colorado Law School in 2015.

  4. Influence of legislative conditioned changes in waste management on economic viability of MSW-fuelled district heating system: Case study

    Directory of Open Access Journals (Sweden)

    Tomić Tihomir

    2016-01-01

    Full Text Available District heating systems represents one of the ways by which the European Union is trying to reach set goals in energy efficiency and security field. These systems allow the use of different energy sources including local energy sources such as waste and biomass. This paper provides economic viability assessment of using these fuels in the district heating system. Economic evaluation is based on regression analysis from data of existing plants and on the locally dependent data. Some of parameters that are dependent of local parameters are price and available fuel quantity, therefore these values are separately modelled; biomass as a function of location of the plant while municipal waste as a function of location and the time changes in waste quantity and composition which depend of socio-economic trends and legislation. This methodology is applied on the case of district heating plants in the City of Zagreb where internal rates of return are calculated for four considered scenarios. Results indicate that waste powered plant can improve its profitability by co-combusting other local wastes while economic viability is achieved by introduction of region wide waste management system. Reducing plant capacity, based on prognosis of waste generation, showed that these plants can be competitive with biomass plants.

  5. The independence principle for the subject of administration of stock trading companies. Comparative study of European legislation

    Directory of Open Access Journals (Sweden)

    Dragoş-Mihail Daghie

    2009-06-01

    Full Text Available One of the main contemporary reforms of the trading companies in Romania has been realized through Lawno. 441/2006, through which, besides the introduction of corporatist government principles, other legislations and otherconceptions of absolute novelty have been transplanted. Among these new principles there is also the independentadministrator, which founds its regulation in art. 1382 from Law no. 31/1990 according to which „through the constitutivepaper or through the decision of the general assembly of the stock holders, can foresee that one or more members of theadministration committee to be independent”. The appointment of some independent administrators represents putting inapplication of the principles of the Organization for Cooperation and Economical Development concerning newcorporatist governing concepts by implementing of some fundamental rights of the stock holders, rights that the stockholders detain apart from their participation to the social capital. In Romania, in comparison with countries like England,France, Spain, Germany, where the corporative governing has reached another implementation level, the new principlesbrought in the life of the stock trading company, concerning its management, is at the beginning of the road; the next stepis to confirm or, on the contrary, contest their necessity.

  6. Before and after study of bar workers' perceptions of the impact of smoke-free workplace legislation in the Republic of Ireland

    Directory of Open Access Journals (Sweden)

    Mullally Bernie J

    2007-06-01

    Full Text Available Abstract Background Objectives: To compare support for, and perceptions of, the impacts of smoke-free workplace legislation among bar workers in the Republic of Ireland (ROI pre- and post-implementation, and to identify predictors of support for the legislation. Methods Setting: Public houses (pubs in three areas of the ROI. Design: Comparisons pre- and post-implementation of smoke-free workplace legislation. Participants: From a largely non-random selection, 288 bar workers volunteered for the baseline survey; 220 were followed up one year later (76.4%. Outcome measures: Level of support for the legislation, attitude statements concerning potential impacts of the law and modelled predictors of support for the legislation. Results Pre-implementation 59.5% of participants supported the legislation, increasing to 76.8% post-implementation. Support increased among smokers by 27.3 percentage points from 39.4% to 66.7% (p Pre-legislation three-quarters of participants agreed that the legislation would make bars more comfortable and was needed to protect workers' health. Post-legislation these proportions increased to over 90% (p Conclusion Smoke-free legislation had the support of three-quarters of a large sample of bar workers in the ROI. However, this group holds complex sets of both positive and negative perspectives on the legislation. Of particular importance is that negative economic perceptions did not diminish the widely held perception that the ban is needed to protect workers' health.

  7. Semi Active Control of Civil Structures, Analytical and Numerical Studies

    Science.gov (United States)

    Kerboua, M.; Benguediab, M.; Megnounif, A.; Benrahou, K. H.; Kaoulala, F.

    numerical example of the parallel R-L piezoelectric vibration shunt control simulated with MATLAB® is presented. An analytical study of the resistor-inductor (R-L) passive piezoelectric vibration shunt control of a cantilever beam was undertaken. The modal and strain analyses were performed by varying the material properties and geometric configurations of the piezoelectric transducer in relation to the structure in order to maximize the mechanical strain produced in the piezoelectric transducer.

  8. Are Retail Outlets Complying with National Legislation to Protect Children from Exposure to Tobacco Displays at Point of Sale? Results from the First Compliance Study in the UK.

    Directory of Open Access Journals (Sweden)

    Douglas Eadie

    Full Text Available From April 6th 2015, all small shops in the UK were required to cover up tobacco products at point of sale (POS to protect children from exposure. As part of a larger 5-year study to measure the impact of the legislation in Scotland, an audit was conducted to assess level and nature of compliance with the ban immediately following its introduction.A discreet observational audit was conducted 7-14 days post implementation which took measures of physical changes made to cover products, server/assistant practices, tobacco signage and advertising, and communication of price information. The audit was conducted in all small retail outlets (n = 83 selling tobacco in four communities in Scotland selected to represent different levels of urbanisation and social deprivation. Data were analysed descriptively.Compliance with the legislation was high, with 98% of shops removing tobacco from permanent display and non-compliance was restricted almost entirely to minor contraventions. The refurbishment of shops with new or adapted tobacco storage units resulted in the removal of nearly all commercial brand messages and images from POS, dropping from 51% to 4%. The majority of shops stored their tobacco in public-facing storage units (81%. Most shops also displayed at least one generic tobacco message (88%.Compliance with Scottish prohibitions on display of tobacco products in small retail outlets was high immediately after the legislation implementation date. However, although tobacco branding is no longer visible in retail outlets, tobacco storage units with generic tobacco messages are still prominent. This points towards a need to monitor how the space vacated by tobacco products is utilised and to better understand how the continuing presence of tobacco storage units influences people's awareness and understanding of tobacco and smoking. Countries with existing POS bans and who are considering such bans should pay particular attention to regulations

  9. Gender Inequality Prevents Abused Women from Seeking Care Despite Protection Given in Gender-Based Violence Legislation: A Qualitative Study from Rwanda.

    Directory of Open Access Journals (Sweden)

    Aline Umubyeyi

    Full Text Available Despite its burden on a person's life, Intimate Partner Violence (IPV is known to be poorly recognised and managed in most countries and communities. This study aimed to explore health care professionals' experiences of the health care seeking processes of women exposed to intimate partner violence in Rwanda.Six focus group discussions were conducted in three district hospitals and three mental health units in Rwanda. A sample of 43 health care professionals with various professions and length of work experience, who regularly took care of patients subjected to IPV, was selected for focus group discussions. The analysis was performed using qualitative content analysis.The theme "Gendered norms and values defeat the violence legislation in women's health care seeking when women are abused" expressed the health care professionals' experiences of the double-faced situation which women exposed to IPV met in their help seeking process. Positive initiatives to protect women were identified, but the potential for abused women to seek help and support was reduced because of poverty, gender inequality with prevailing strong norms of male superiority, and the tendency to keep abuse as a private family matter.Legislative measures have been instituted to protect women from abuse. Still many Rwandan women do not benefit from these efforts. The role of the health care services needs to be reinforced as an important and available resource for help and support for abused women but further legislative changes are also needed. Initiatives to further improve gender equality, and institutionalised collaboration between different sectors in society would contribute to protecting women from IPV.

  10. Impact of a partial smoke-free legislation on myocardial infarction incidence, mortality and case-fatality in a population-based registry: the REGICOR Study.

    Directory of Open Access Journals (Sweden)

    Fernando Agüero

    Full Text Available BACKGROUND AND OBJECTIVE: Coronary heart disease (CHD is the leading cause of death, and smoking its strongest modifiable risk factor. Our aim was to determine the impact of the Spanish 2006 partial smoke-free legislation on acute myocardial infarction (AMI incidence, hospitalization and mortality rates, and 28-day case-fatality in Girona, Spain. METHODS: Using a population-based registry (the REGICOR Study, we compared population incidence, hospitalization, and mortality rates, and 28-day case-fatality in the pre- and post-ban periods (2002-2005 and 2006-2008, respectively by binomial regression analysis adjusted for confounding factors. We also analyzed the ban's impact on the outcomes of interest using the AMI definitions of the American Heart Association (AHA/European Society of Cardiology (ESC and the World Health Organization (WHO-Monitoring trends and determinants in cardiovascular diseases (MONICA. RESULTS: In the post-ban period, AMI incidence and mortality rates significantly decreased (relative risk [RR] = 0.89; 95% confidence interval [CI] = 0.81-0.97 and RR = 0.82; 95% CI = 0.71-0.94, respectively. Incidence and mortality rates decreased in both sexes, especially in women, and in people aged 65-74 years. Former and non-smokers (passive smokers showed diminished incidence rates. Implementation of the ban was not associated with AMI case-fatality. Models tended to be more significant with the WHO-MONICA than with the AHA/ESC definition. CONCLUSIONS: The 2006 Spanish partial smoke-free legislation was associated with a decrease in population AMI incidence and mortality, particularly in women, in people aged 65-74 years, and in passive smokers. These results clarify the association between AMI mortality and the enactment of a partial smoke-free legislation and reinforce the effectiveness of smoking regulations in preventing CHD.

  11. Legal Principles and Legislative Instrumentalism

    NARCIS (Netherlands)

    Gribnau, J.L.M.; Soeteman, A.

    2003-01-01

    Instrumentalist legislation usually underestimates the importance of legal principles in modern law. Legal principles are the normative core of a value oriented conception of law. They function as essential criteria of evaluation for lawmaking by the legislator and the executive. In fact, legislator

  12. ANALYTICAL APPROACHES TO THE STUDY OF EXPORT TRANSACTIONS

    Directory of Open Access Journals (Sweden)

    Ekaterina Viktorovna Medvedeva

    2015-12-01

    Full Text Available Analytical approaches to research of export operations depend on the conditions containing in separate external economic contracts with foreign buyers and also on a form of an exit of the Russian supplier of export goods to a foreign market. By means of analytical procedures it is possible to foresee and predict admissible situations which can have an adverse effect on a financial position of the economic subject. The economic entity, the engaged foreign economic activity, has to carry out surely not only the analysis of the current activity, but also the analysis of export operations. In article analytical approaches of carrying out the analysis of export operations are considered, on an example the analysis of export operations in dynamics is submitted, it is recommended to use the formulas allowing to estimate export in dynamics. For the comparative analysis export volume in the comparable prices is estimated. On the commodity groups including and quantitatively and qualitatively commensurable goods, the index of quantitative structure is calculated, the coefficient of delay of delivery of goods in comparison with other periods pays off. Carrying out the analysis allows to determine a tendency of change of export deliveries by export operations for the analyzed period for adoption of administrative decisions.Purpose Definition of the ways and receptions of the analysis applying when carrying out the analysis of export operations.Methodology in article economic-mathematical methods, and also statistical methods of the analysis were used.Results: the most informative parameters showing some aspects of carrying out the analysis of export operations are received.Practical implications it is expedient to apply the received results the economic subjects which are carrying out foreign economic activity, one of which elements are export operations.

  13. Analytical study of spatiotemporal chaos control by applying local injections

    Science.gov (United States)

    Gang; Jinghua; Jihua; Xiangming; Yugui; Hu

    2000-09-01

    Spatiotemporal chaos control by applying local feedback injections is investigated analytically. The influence of gradient force on the controllability is investigated. It is shown that as the gradient force of the system is larger than a critical value, local control can reach very high efficiency to drive the turbulent system of infinite size to a regular target state by using a single control signal. The complex Ginzburg-Landau equation is used as a model to confirm the above analysis, and a four-wave-mixing mode is revealed to determine the dynamical behavior of the controlled system at the onset of instability.

  14. ALCOHOL RELATED TRAFFIC SAFETY LEGISLATION

    Directory of Open Access Journals (Sweden)

    E.B.R. DESAPRIYA

    2002-01-01

    Full Text Available There is a substantial amount of evidence from experimental studies to indicate that a variety of individual skills are impaired at blood alcohol concentrations (BACs well below 0.05%. Epidemiological studies indicate that the risk of a crash increases sharply for drivers with BACs below 0.05%. The correlation between drunk driving and the risk of traffic accidents has been established on the individual as well as the aggregate level. The BAC level legally permitted is a public policy decision by legislators, while scientists can present experimental and epidemiological evidence indicating the BAC level at which psychomotor skills deteriorate and accident probabilities increase. There is considerable epidemiological evidence to support the fact that the risk of alcohol impaired drivers being involved in traffic crashes rises with increasing BAC's. By contrast, the evidence on the BAC at which a driver should be regarded as committing an offence has been the subject of much debate and various legislative decisions. Historically, per se laws specify BAC levels which are a compromise figure intended to reflect both the point at which a driver becomes significantly more likely to be involved in an accident than a comparative driver with a zero BAC and that which is politically acceptable, but falls within the BAC region of increased accident liability. Therefore, the per se legislation in most countries has not kept pace with scientific progress. This study suggests that if saving lives on the road is an important issue, then, passing laws that incorporate scientific and epidemiological studies, is necessary.

  15. Challenging issues in assessing analytical similarity in biosimilar studies

    Directory of Open Access Journals (Sweden)

    Chow SC

    2015-05-01

    Full Text Available Shein-Chung Chow Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA Abstract: For assessing biosimilarity of biosimilar products, the US Food and Drug Administration (FDA proposed a stepwise approach for providing totality-of-the-evidence of similarity between a proposed biosimilar product and a US-licensed (reference product. The stepwise approach starts with an assessment of critical quality attributes (CQAs that are relevant to clinical outcomes in structural and functional characterization in manufacturing process of the proposed biosimilar product. The FDA suggests that these critical quality–relevant attributes be identified and classified into three tiers depending their criticality or risk ranking. To assist the sponsors, the FDA also suggests some statistical approaches for the assessment of analytical similarity for CQAs from different tiers, namely equivalence test for Tier 1, quality range approach for Tier 2, and descriptive raw data and graphical comparison for Tier 3. In this paper, challenging issues to the FDA's recommended approaches are discussed followed by alternative methods for the assessment of analytical similarity (mainly for CQAs from Tier 1. Keywords: stepwise approach, critical quality attribute, CQA, equivalence test, quality range approach 

  16. The Use of Analytic Rubric in the Assessment of Writing Performance--Inter-Rater Concordance Study

    Science.gov (United States)

    Beyreli, Latif; Ari, Gokhan

    2009-01-01

    In this study, the purpose was to determine whether there was concordance among raters in the assessment of the writing performance using analytic rubric; furthermore, factors affecting the assessment process were examined. The analytic rubric used in the study consists of three sections and ten properties: External structure (format, spelling and…

  17. Analytical study of coherence in seeded modulation instability

    Science.gov (United States)

    Bonetti, J.; Hernandez, S. M.; Fierens, P. I.; Grosz, D. F.

    2016-09-01

    We derive analytical expressions for the coherence in the onset of modulation instability, in excellent agreement with thorough numerical simulations. As usual, we start by a linear perturbation analysis, where broadband noise is added to a cw pump; then, we investigate the effect of adding a deterministic seed to the cw pump, a case of singular interest as it is commonly encountered in parametric amplification schemes. Results for the dependence of coherence on parameters such as fiber type, pump power, propagated distance, and seed signal-to-noise ratio are presented. Finally, we show the importance of including higher-order linear and nonlinear dispersion when looking at longer-wavelength regions (mid IR).

  18. Analytical study of coherence in seeded modulation instability

    CERN Document Server

    Bonetti, J; Fierens, P I; Grosz, D F

    2016-01-01

    We derive analytical expressions for the coherence in the onset of modulation instability, in excellent agreement with thorough numerical simulations. As usual, we start by a linear perturbation analysis, where broadband noise is added to a continuous wave (CW) pump; then, we investigate the effect of adding a deterministic seed to the CW pump, a case of singular interest as it is commonly encountered in parametric amplification schemes. Results for the dependence of coherence on parameters such as fiber type, pump power, propagated distance, seed signal-to-noise ratio are presented. Finally, we show the importance of including higher-order linear and nonlinear dispersion when dealing with generation in longer wavelength regions (mid IR). We believe these results to be of relevance when applied to the analysis of the coherence properties of supercontinua generated from CW pumps.

  19. (U) An Analytic Study of Piezoelectric Ejecta Mass Measurements

    Energy Technology Data Exchange (ETDEWEB)

    Tregillis, Ian Lee [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-02-16

    We consider the piezoelectric measurement of the areal mass of an ejecta cloud, for the specific case where ejecta are created by a single shock at the free surface and fly ballistically through vacuum to the sensor. To do so, we define time- and velocity-dependent ejecta “areal mass functions” at the source and sensor in terms of typically unknown distribution functions for the ejecta particles. Next, we derive an equation governing the relationship between the areal mass function at the source (which resides in the rest frame of the free surface) and at the sensor (which resides in the laboratory frame). We also derive expressions for the analytic (“true”) accumulated ejecta mass at the sensor and the measured (“inferred”) value obtained via the standard method for analyzing piezoelectric voltage traces. This approach enables us to derive an exact expression for the error imposed upon a piezoelectric ejecta mass measurement (in a perfect system) by the assumption of instantaneous creation. We verify that when the ejecta are created instantaneously (i.e., when the time dependence is a delta function), the piezoelectric inference method exactly reproduces the correct result. When creation is not instantaneous, the standard piezo analysis will always overestimate the true mass. However, the error is generally quite small (less than several percent) for most reasonable velocity and time dependences. In some cases, errors exceeding 10-15% may require velocity distributions or ejecta production timescales inconsistent with experimental observations. These results are demonstrated rigorously with numerous analytic test problems.

  20. Behavioural and psychological responses of lower educated smokers to the smoke-free legislation in Dutch hospitality venues : A qualitative study

    NARCIS (Netherlands)

    Van der Heiden, Sander; Gebhardt, Winifred A.; Willemsen, Marc C.; Nagelhout, Gera E.; Dijkstra, Arie

    2013-01-01

    Objective: In 2008, smoke-free legislation was implemented in hospitality venues (HV) in the Netherlands. We investigated how continuing smokers with a lower educational background respond behaviourally and psychologically to the legislation and the norm it communicates. Design: In 2010, 18 lower-ed

  1. Behavioural and psychological responses of lower educated smokers to the smoke-free legislation in Dutch hospitality venues : A qualitative study

    NARCIS (Netherlands)

    Van der Heiden, Sander; Gebhardt, Winifred A.; Willemsen, Marc C.; Nagelhout, Gera E.; Dijkstra, Arie

    2013-01-01

    Objective: In 2008, smoke-free legislation was implemented in hospitality venues (HV) in the Netherlands. We investigated how continuing smokers with a lower educational background respond behaviourally and psychologically to the legislation and the norm it communicates. Design: In 2010, 18 lower-ed

  2. Patchy sticky hard spheres: analytical study and Monte Carlo simulations.

    Science.gov (United States)

    Fantoni, Riccardo; Gazzillo, Domenico; Giacometti, Achille; Miller, Mark A; Pastore, Giorgio

    2007-12-21

    We consider a fluid of hard spheres bearing one or two uniform circular adhesive patches, distributed so as not to overlap. Two spheres interact via a "sticky" Baxter potential if the line joining the centers of the two spheres intersects a patch on each sphere, and via a hard sphere potential otherwise. We analyze the location of the fluid-fluid transition and of the percolation line as a function of the size of the patch (the fractional coverage of the sphere's surface) and of the number of patches within a virial expansion up to third order and within the first two terms (C0 and C1) of a class of closures Cn hinging on a density expansion of the direct correlation function. We find that the locations of the two lines depend sensitively on both the total adhesive coverage and its distribution. The treatment is almost fully analytical within the chosen approximate theory. We test our findings by means of specialized Monte Carlo simulations and find the main qualitative features of the critical behavior to be well captured in spite of the low density perturbative nature of the closure. The introduction of anisotropic attractions into a model suspension of spherical particles is a first step toward a more realistic description of globular proteins in solution.

  3. Analytical Study of Pre-Congestion Notification (PCN Techniques

    Directory of Open Access Journals (Sweden)

    Marwah Almasri

    2012-08-01

    Full Text Available Maintaining the quality of service (QOS and controlling the network congestion are quite complicated tasks. They cause degrading the performance of the network, and disturbing the continuous communication process. To overcome these issues, one step towards this dilemma has been taken in form of Pre-congestion notification (PCN technique. PCN uses a packet marking technique within a PCN domain over IP networks. It is notified by egress node that works as guard at entry point of network. Egress node gives feedback to communicating servers whether rate on the link is exceeded than configured admissible threshold or within the limit. Based on this feedback, admission decisions are taken to determine whether to allow/block new coming flows or terminate already accepted. The actual question is about selection of right algorithm for PCN domain. In this paper, we investigate the analytical behavior of some known PCN algorithms. We make slide modifications in originality of PCN algorithms without disquieting working process in order to employ those within similar types of scenarios. Our goal is to simulate them either in highly congested or less congested realistic scenarios. On the basis of simulation done in ns2, we are able to recommend each PCN algorithm for specific conditions. Finally, we develop a benchmark that helps researchers and scientific communities to pick the right algorithm. Furthermore, the benchmark is designed to achieve specific objectives according to the users’ requirements without congesting the network.

  4. Has analytical flexibility increased in imaging studies of bipolar disorder and major depression?

    Science.gov (United States)

    Munafò, M R; Kempton, M J

    2015-02-01

    There has been extensive discussion of problems of reproducibility of research. Analytical flexibility may contribute to this, by increasing the likelihood that a reported finding represents a chance result. We explored whether analytical flexibility has increased over time, using human imaging studies of bipolar disorder and major depression. Our results indicate that the number of measures collected per study has increased over time for studies of bipolar disorder, but not for studies of major depression.

  5. MANIFESTATIONS OF THE ABUSE OF POWER IN THE ROMANIAN LEGISLATION REGARDING THE PREFECT’ S OFFICE – CONSTITUTIONAL CENSORING OF THIS ABUSE OF POWER (Case study

    Directory of Open Access Journals (Sweden)

    Marta Claudia Cliza

    2008-01-01

    Full Text Available The current study case intends to render a phenomenon not at all to be neglected in the Romanian society: the encroachment of some authorities in the exercise of operation of some other authorities. The phenomenon is not the only one, it has been censored by the media, courts of lawfor many times, but it was elected especially because it appeared as a result of some legislative transformations, at their turn questionable by the critics. The prefect’s institution plays at present a very important part in the life of the local community, although the power center of this authority parts from the central level. In this context, it is not to be neglected the prefect’ s part in the life of the local community and how far its attributions can extend, besides, how far it can interfere in the appointment of the heads of some decentralized public services without breaking the Constitution and the laws that govern its activity.

  6. A review on analytical techniques for natural convection investigation in a heated closed enclosure: Case study

    Directory of Open Access Journals (Sweden)

    Minea Alina Adriana

    2015-01-01

    Full Text Available The aim of this paper is to present a theoretical analysis of a few convection problems. The investigations were started from the geometry of a classic muffle manufactured furnace. During this analytical study, different methodologies have been carefully chosen in order to compare and evaluate the effects of applying different analytical methods of the convection heat transfer processes. In conclusion, even if there are available a lot of analytical methods, natural convection in enclosed enclosures can be studied correctly only with numerical analysis. Also, in this article is presented a case study on natural convection application in a closed heated enclosure.

  7. Impact of Analytics in Financial Decision Making: Evidence from a Case Study Approach

    Directory of Open Access Journals (Sweden)

    Durrel Ramrathan

    2014-10-01

    Full Text Available This study seeks to investigate the impact of analytics in financial decision making in organizations in a rapidly growing knowledge economy. Analytics has emerged as a critical business enabler in today‟s competitive market place. Its application has provided businesses with the opportunity to gain a competitive advantage by leveraging the vast amount of data they have available. Analytics is not limited to a particular tool or method however; it encompasses a range of combinations and it is this element that has made analytics such a success factor. This study uses a case study approach to identify critical areas of business where analytics have played a vital role in financial decision making. Application of analytics in financial decision making is shown to streamline information resulting in making decisions more efficiently and effectively. This study provides insights in financial decision making using statistical backing which has a vast number of applications in finance functions. As such, areas such as such detecting fraud, budgeting and forecasting, risk management and customer insights need to actively apply analytical tools to better manage and enhance the information gained from these areas. This study integrates the use of information technology tools and packages with financial management with the view of enhancing financial decision flow in organizations.

  8. Before and after study of bar workers' perceptions of the impact of smoke-free workplace legislation in the Republic of Ireland.

    LENUS (Irish Health Repository)

    Pursell, Lisa

    2007-01-01

    BACKGROUND: Objectives: To compare support for, and perceptions of, the impacts of smoke-free workplace legislation among bar workers in the Republic of Ireland (ROI) pre- and post-implementation, and to identify predictors of support for the legislation. METHODS: Setting: Public houses (pubs) in three areas of the ROI. Design: Comparisons pre- and post-implementation of smoke-free workplace legislation. Participants: From a largely non-random selection, 288 bar workers volunteered for the baseline survey; 220 were followed up one year later (76.4%). Outcome measures: Level of support for the legislation, attitude statements concerning potential impacts of the law and modelled predictors of support for the legislation. RESULTS: Pre-implementation 59.5% of participants supported the legislation, increasing to 76.8% post-implementation. Support increased among smokers by 27.3 percentage points from 39.4% to 66.7% (p < 0.001) and among non-smokers by 12.4% percentage points from 68.8% to 81.2% (p = 0.003).Pre-legislation three-quarters of participants agreed that the legislation would make bars more comfortable and was needed to protect workers\\' health. Post-legislation these proportions increased to over 90% (p < 0.001). However, negative perceptions also increased, particularly for perceptions that the legislation has a negative impact on business (from 50.9% to 62.7%, p = 0.008) and that fewer people would visit pubs (41.8% to 62.7%, p < 0.001). After adjusting for relevant covariates, including responses to the attitude statements, support for the ban increased two to three-fold post-implementation. Regardless of their views on the economic impact, most participants agreed, both pre- and post-implementation, that the legislation was needed to protect bar workers\\' health. CONCLUSION: Smoke-free legislation had the support of three-quarters of a large sample of bar workers in the ROI. However, this group holds complex sets of both positive and negative

  9. Health manpower legislation.

    Science.gov (United States)

    Hoopes, J E

    1981-08-01

    In response to the desires of Congress, medical schools dramatically enhanced their ability to perform biomedical research and to educate health professions personnel. Initially, Congress viewed health professionals as a national resource in terms of being willing to subsidize their education. Congress continues to view the health professions as a national resource, but the philosophy of Congress has become substantially modified: Congress is unwilling to subsidize the education of physicians, but perceives that it must regulate their specialty and geographic distribution. Medical students and medical schools have, in a major sense, been left "holding the bag." A cogent argument can be offered that the natural history of health-care evolution has been confused by excessive meddling with the system. Additional legislatively induced confusion should not be imposed, at least until the results of the previous meddling have been observed. Unfortunately, the foregoing presentation raises considerably more questions than it answers: Medical schools: What will be the source(s) of financial support? Medical students: What will be the impact of tuition indebtedness? Practicing physicians: What will be the result(s) of severe competition? Health professions educational institutions must address fundamental issues concerning their financial survival. That is, will they accept the carrot-and-stick philosophy and pursue federal funding? or will they seek financial independence toward the goal of assuming responsibility for their own destiny? The philosophy of federal funding "without strings attached" does not exist.

  10. Assessing the potential clinical impact of reciprocal drug approval legislation on access to novel therapeutics in the USA: a cohort study

    Science.gov (United States)

    Larochelle, Matthieu; Downing, Nicholas S; Ross, Joseph S; David, Frank S

    2017-01-01

    Objective To quantify the potential effect of reciprocal approval legislation on access to clinically impactful therapeutics in the USA. Design A cohort study. Setting New therapeutics approved by the Food and Drug Administration (FDA), European Medicines Agency (EMA) and/or Health Canada between 2000 and 2010. Main outcome measures Characteristics of new therapeutics approved by the EMA and/or Health Canada before the FDA, including mechanistic novelty, likely clinical impact, size of the affected population and FDA review outcome. Results From 2001 to 2010, 282 drugs were approved in the USA, Europe or Canada, including 172 (61%) first approved in the USA, 24 (9%) never approved in the USA, and 86 (30%) approved in the USA after Europe and/or Canada. Of the 110 new drugs approved in Europe and/or Canada before the USA, 37 (34%) had a novel mechanisms of action compared with drugs already approved by the FDA, but only 10 (9%) were for conditions lacking alternate available therapies in the USA at the time of ex-US approval—of which the majority (9/10; 90%) were indicated for rare diseases. 12 of the 37 agents with novel mechanisms of action approved first in Europe and/or Canada (32%) had their initial FDA submissions rejected for safety reasons—including 2 drugs that were ultimately withdrawn from the market in Europe due to safety concerns. Conclusions If enacted, reciprocal approval legislation would most likely benefit only a small number of US patients receiving treatment for rare diseases, and the benefit may be somewhat mitigated by an increased exposure to harms. PMID:28179418

  11. Quality and safety aspects of reusable plastic food packaging materials : a European study to underpin future legislation

    NARCIS (Netherlands)

    Jetten, J.; Kruijf, N. de; Castle, L.

    1999-01-01

    The objective of this study was to develop a comprehensive package of quality assurance criteria for use by industry and regulatory authorities for ensuring the quality and safety-in-use (sensory, microbiological and chemical) of reused plastics for food packaging. The study included thermal

  12. Quality and safety aspects of reusable plastic food packaging materials : a European study to underpin future legislation

    NARCIS (Netherlands)

    Jetten, J.; Kruijf, N. de; Castle, L.

    1999-01-01

    The objective of this study was to develop a comprehensive package of quality assurance criteria for use by industry and regulatory authorities for ensuring the quality and safety-in-use (sensory, microbiological and chemical) of reused plastics for food packaging. The study included thermal degrada

  13. The Association between Physical Fitness and Academic Achievement in Texas State House Legislative Districts: An Ecologic Study

    Science.gov (United States)

    Janak, Jud C.; Gabriel, Kelley P.; Oluyomi, Abiodun O.; Peréz, Adriana; Kohl, Harold W.; Kelder, Steven H.

    2014-01-01

    Background: The association of physical fitness with cognitive function in children and adolescents is unclear. The purpose of this ecological study was to describe the association between academic achievement, body mass index (BMI), and cardiovascular fitness (CVF) in a large sample of elementary, middle, and high school students in Texas.…

  14. The Association between Physical Fitness and Academic Achievement in Texas State House Legislative Districts: An Ecologic Study

    Science.gov (United States)

    Janak, Jud C.; Gabriel, Kelley P.; Oluyomi, Abiodun O.; Peréz, Adriana; Kohl, Harold W.; Kelder, Steven H.

    2014-01-01

    Background: The association of physical fitness with cognitive function in children and adolescents is unclear. The purpose of this ecological study was to describe the association between academic achievement, body mass index (BMI), and cardiovascular fitness (CVF) in a large sample of elementary, middle, and high school students in Texas.…

  15. Analytical Study on Thermal and Mechanical Design of Printed Circuit Heat Exchanger

    Energy Technology Data Exchange (ETDEWEB)

    Yoon, Su-Jong [Idaho National Lab. (INL), Idaho Falls, ID (United States); Sabharwall, Piyush [Idaho National Lab. (INL), Idaho Falls, ID (United States); Kim, Eung-Soo [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2013-09-01

    The analytical methodologies for the thermal design, mechanical design and cost estimation of printed circuit heat exchanger are presented in this study. In this study, three flow arrangements of parallel flow, countercurrent flow and crossflow are taken into account. For each flow arrangement, the analytical solution of temperature profile of heat exchanger is introduced. The size and cost of printed circuit heat exchangers for advanced small modular reactors, which employ various coolants such as sodium, molten salts, helium, and water, are also presented.

  16. [Impact of the legislation for smoke-free workplaces on respiratory health in hospitality workers--review of epidemiological studies].

    Science.gov (United States)

    Polańska, Kinga; Hanke, Wojciech; Konieczko, Katarzyna

    2011-01-01

    Environmental tobacco smoke exposure (ETS) is a significant risk factor for the development of many diseases, including lung cancer, lower respiratory tract infections, asthma and eye, throat and nasal irritations. Hospitality workers form an occupational group with high exposure to ETS in their workplace. Taking into account the health consequences of ETS exposure and high prevalence of exposure in public places, including workplaces, many countries have implemented the smoking ban that prohibits or restricts smoking in workplaces, including restaurants and bars. The epidemiological studies have indicated a significant reduction in the exposure level after implementation of the smoking ban. Most studies have also indicated a significant reduction in respiratory and sensory symptoms. The impact of the smoking ban on the lung function measurements is still not clear.

  17. The un/state of lesbian studies: an introduction to lesbian communities and contemporary legislation in Japan.

    Science.gov (United States)

    Maree, Claire

    2007-01-01

    Although it would be safe to say that Lesbian Studies has never seriously been placed on the Japanese academic agenda, women-loving-women in Japan continue to individually and collectively desist from and resist heteronormative gender discourses. This paper first gives a brief overview of 'rezubian' communities since the 1970s and then outlines the Basic Law for a Gender Equal Society and the Law Concerning Special Rules Regarding Sex Status of a Person with Gender Identity Disorder; two recent laws that demonstrate contemporary regulatory gender discourses. In closing, I stress that the paradox of contemporary Japanese 'lesbian studies,' being almost nonexistent in the academe and continuously in development in the community, is clear only if we look at academic discourses alongside writings in both commercial and community publications.

  18. Analytical study of sandwich structures using Euler-Bernoulli beam equation

    Science.gov (United States)

    Xue, Hui; Khawaja, H.

    2017-01-01

    This paper presents an analytical study of sandwich structures. In this study, the Euler-Bernoulli beam equation is solved analytically for a four-point bending problem. Appropriate initial and boundary conditions are specified to enclose the problem. In addition, the balance coefficient is calculated and the Rule of Mixtures is applied. The focus of this study is to determine the effective material properties and geometric features such as the moment of inertia of a sandwich beam. The effective parameters help in the development of a generic analytical correlation for complex sandwich structures from the perspective of four-point bending calculations. The main outcomes of these analytical calculations are the lateral displacements and longitudinal stresses for each particular material in the sandwich structure.

  19. A Factor Analytic Study of the Teaching Events Stress Inventory.

    Science.gov (United States)

    Alexander, Livingston; And Others

    The purpose of this study was to determine if definitive factors emerge from the responses of teachers to the Teaching Events Stress Inventory (TESI). In a series of three studies during the years 1980 to 1982, data were collected to assess the levels and sources of stress experienced by 660 teachers in central and western Kentucky. The subjects…

  20. A Factor Analytic Study of the Internet Usage Scale

    Science.gov (United States)

    Monetti, David M.; Whatley, Mark A.; Hinkle, Kerry T.; Cunningham, Kerry T.; Breneiser, Jennifer E.; Kisling, Rhea

    2011-01-01

    This study developed an Internet Usage Scale (IUS) for use with adolescent populations. The IUS is a 26-item scale that measures participants' beliefs about how their Internet usage impacts their behavior. The sample for this study consisted of 947 middle school students. An exploratory factor analysis with varimax rotation was conducted on the…

  1. How are the interests of incapacitated research participants protected through legislation? An Italian study on legal agency for dementia patients.

    Directory of Open Access Journals (Sweden)

    Sabina Gainotti

    Full Text Available BACKGROUND: Patients with dementia may have limited capacity to give informed consent to participate in clinical research. One possible way to safeguard the patients' interests in research is the involvement of a proxy in the recruitment process. In Italy, the system of proxy is determined by the courts. In this study we evaluate the timing for appointment of a legal proxy in Italy and identify predictive variables of appointment. METHODOLOGY/PRINCIPAL FINDINGS: Subjects were recruited among the outpatients seeking medical advice for cognitive complaints at the Centre for Research and Treatment of Cognitive Dysfunctions, University of Milan, "Luigi Sacco" Hospital. The Centre was participating to the AdCare Study, a no-profit randomised clinical trial coordinated by the Italian National Institute of Health. The requirement that informed consent be given by a legal representative dramatically slowed down the recruitment process in AdCare, which was prematurely interrupted. The Centre for Research and Treatment of Cognitive Dysfunctions collected data on the timing required to appoint the legal representatives. Patients diagnosed with dementia and their caregivers were provided information on the Italian law on legal agency (law 6/2004. At each scheduled check-up the caregiver was asked whether she/he had applied to appoint a legal proxy for the patient and the time interval between the presentation of the law, the registration of the application at the law court chancellery and the sentence of appointment was registered. The study involved 169 demented patients. Seventy-eight patients (46.2% applied to appoint a legal proxy. These subjects were usually younger, had been suffering from dementia for a longer time, had less than two children and made more use of memantine. The mean interval time between the presentation of the law and the patients' application to the law court chancellery was two months. The mean interval time between the patient

  2. How are the interests of incapacitated research participants protected through legislation? An Italian study on legal agency for dementia patients.

    Science.gov (United States)

    Gainotti, Sabina; Fusari Imperatori, Susanna; Spila-Alegiani, Stefania; Maggiore, Laura; Galeotti, Francesca; Vanacore, Nicola; Petrini, Carlo; Raschetti, Roberto; Mariani, Claudio; Clerici, Francesca

    2010-06-16

    Patients with dementia may have limited capacity to give informed consent to participate in clinical research. One possible way to safeguard the patients' interests in research is the involvement of a proxy in the recruitment process. In Italy, the system of proxy is determined by the courts. In this study we evaluate the timing for appointment of a legal proxy in Italy and identify predictive variables of appointment. Subjects were recruited among the outpatients seeking medical advice for cognitive complaints at the Centre for Research and Treatment of Cognitive Dysfunctions, University of Milan, "Luigi Sacco" Hospital. The Centre was participating to the AdCare Study, a no-profit randomised clinical trial coordinated by the Italian National Institute of Health. The requirement that informed consent be given by a legal representative dramatically slowed down the recruitment process in AdCare, which was prematurely interrupted. The Centre for Research and Treatment of Cognitive Dysfunctions collected data on the timing required to appoint the legal representatives. Patients diagnosed with dementia and their caregivers were provided information on the Italian law on legal agency (law 6/2004). At each scheduled check-up the caregiver was asked whether she/he had applied to appoint a legal proxy for the patient and the time interval between the presentation of the law, the registration of the application at the law court chancellery and the sentence of appointment was registered. The study involved 169 demented patients. Seventy-eight patients (46.2%) applied to appoint a legal proxy. These subjects were usually younger, had been suffering from dementia for a longer time, had less than two children and made more use of memantine. The mean interval time between the presentation of the law and the patients' application to the law court chancellery was two months. The mean interval time between the patient's application to the law court chancellery and the sentence of

  3. Analytical study of recoil systems and their design

    Directory of Open Access Journals (Sweden)

    J. P. Sirpal

    1960-07-01

    Full Text Available A critical study of the various design parameters usually employed in the typical existing designs and it has been found that the order of magnitudes of some of these parameters are fairly different from those theoretically suggested. An explanation of this difference is also offered. A few additional parameters that are necessary for a preliminary design have also been studied. Based on this some considerations regarding a new design have been suggested.

  4. Experimental and Analytical Studies of Solar System Chemistry

    Science.gov (United States)

    Burnett, Donald S.

    2003-01-01

    The cosmochemistry research funded by this grant resulted in the publications given in the attached Publication List. The research focused in three areas: (1) Experimental studies of trace element partitioning. (2) Studies of the minor element chemistry and O isotopic compositions of MgAlO4 spinels from Ca-Al-Rich Inclusions in carbonaceous chondrite meteorites, and (3) The abundances and chemical fractionations of Th and U in chondritic meteorites.

  5. Asynchronous telehealth: a scoping review of analytic studies.

    Science.gov (United States)

    Deshpande, Amol; Khoja, Shariq; Lorca, Julio; McKibbon, Ann; Rizo, Carlos; Husereau, Donald; Jadad, Alejandro R

    2009-06-02

    Asynchronous telehealth captures clinically important digital samples (e.g., still images, video, audio, text files) and relevant data in one location and subsequently transmits these files for interpretation at a remote site by health professionals without requiring the simultaneous presence of the patient involved and his or her health care provider. Its utility in the health care system, however, still remains poorly defined. We conducted this scoping review to determine the impact of asynchronous telehealth on health outcomes, process of care, access to health services, and health resources. A search was performed up to December 2006 of MEDLINE, CINAHL, HealthSTAR, the Database of Abstracts of Reviews of Effectiveness, and The Cochrane Library. Studies were included if they contained original data on the use of asynchronous telehealth and were published in English in a peer-reviewed journal. Two independent reviewers screened all articles and extracted data, reaching consensus on the articles and data identified. Data were extracted on general study characteristics, clinical domain, technology, setting, category of outcome, and results. Study quality (internal validity) was assessed using the Jadad scale for randomized controlled trials and the Downs and Black index for non-randomized studies. Summary data were categorized by medical specialty and presented qualitatively. The scoping review included 52 original studies from 238 citations identified; of these 52, almost half focused on the use of telehealth in dermatology. Included studies were characterized by diverse designs, interventions, and outcomes. Only 16 studies were judged to be of high quality. Most studies showed beneficial effects in terms of diagnostic accuracy, wait times, referral management, and satisfaction with services. Evidence on the impact of asynchronous telehealth on resource use in dermatology suggests a reduction in the number of, or avoidance of, in-person visits. Reports from other

  6. Does State Legislation Improve Nursing Workforce Diversity?

    Science.gov (United States)

    Travers, Jasmine; Smaldone, Arlene; Cohn, Elizabeth Gross

    2015-08-01

    A health-care workforce representative of our nation's diversity is a health and research priority. Although racial and ethnic minorities represent 37% of Americans, they comprise only 16% of the nursing workforce. The purpose of this study was to examine the effect of state legislation on minority recruitment to nursing. Using data from the National Conference of State Legislatures, American Association of Colleges of Nursing, and U.S. census, we compared minority enrollment in baccalaureate nursing programs of states (Texas, Virginia, Michigan, California, Florida, Connecticut, and Arkansas) before and 3 years after enacting legislation with geographically adjacent states without legislation. Data were analyzed using descriptive and chi-square statistics. Following legislation, Arkansas (13.8%-24.5%), California (3.3%-5.4%), and Michigan (8.0%-10.0%) significantly increased enrollment of Blacks, and Florida (11.8%-15.4%) and Texas (11.2%-13.9%) significantly increased enrollment of Hispanic baccalaureate nursing students. States that tied legislation to funding, encouragement, and reimbursement had larger enrollment gains and greater minority representation. © The Author(s) 2015.

  7. THE INFLUENCES OF CHANGES IN TAX LEGISLATION

    Directory of Open Access Journals (Sweden)

    MORAR IOAN DAN

    2013-07-01

    Full Text Available Taxation is a fairly important field in the relationship between taxpayers and tax authorities, especially given the frequent changes in specific legislation. Legislative changes affect the patrimonial position of the taxpayers, but also their behavior, therefore this phenomenon is important to advise those interested and also to analyze the changes resulting from changes in tax legislation. This paper aims to meaningfully present the latest legislative changes and to analyze their influences on taxpayers and on budget revenues from taxes subject to change. The research methodology is based on comparison and inference, based on previous analyzes for such studies on the tax system. In the literature there are known ways and methods of increasing the tax burden and, based on these variables, in the present paper we will highlight the particular influences on the taxpayer’s , loaded by weight imposed by the official distribution of the tax burden. The implications of legislative changes in tax matters should be sought in the innermost chord of taxpayers and also in the increasingly large and patched pockets of the modern state. In the first place, we will point out the implications on changing tax procedures, in terms of the workload for the taxpayer and the tax collectors. By accurately and relevantly analyzing the influences generated by such changes, the author aims to demonstrate the harmful influences of some changes in terms of discouraging investments and honest labor.

  8. Analytical study of nozzle performance for nuclear thermal rockets

    Science.gov (United States)

    Davidian, Kenneth O.; Kacynski, Kenneth J.

    1991-01-01

    A parametric study has been conducted by the NASA-Lewis Rocket Engine Design Expert System for the convergent-divergent nozzle of the Nuclear Thermal Rocket system, which uses a nuclear reactor to heat hydrogen to high temperature and then expands it through the nozzle. It is established by the study that finite-rate chemical reactions lower performance levels from theoretical levels. Major parametric roles are played by chamber temperature and chamber pressure. A maximum performance of 930 sec is projected at 2700 K, and of 1030 at 3100 K.

  9. Study of pressure in water wells using analytical methods

    Energy Technology Data Exchange (ETDEWEB)

    Lakatos, S.

    1979-01-01

    According to the data of studying wells, an examination is made of the possibility of determining the deep pressure. As applied to wells with gas influx, a method of correction is proposed which is based on laws regarding gas or laws of its solubility.

  10. Student Satisfaction in Higher Education: A Meta-Analytic Study

    Science.gov (United States)

    Santini, Fernando de Oliveira; Ladeira, Wagner Junior; Sampaio, Claudio Hoffmann; da Silva Costa, Gustavo

    2017-01-01

    This paper discusses the results of a meta-analysis performed to identify key antecedent and consequent constructs of satisfaction in higher education. We offer an integrated model to achieve a better understanding of satisfaction in the context of higher education. To accomplish this objective, we identified 83 studies that were valid and…

  11. Meta-Analytical Studies in Transport Economics : Methodology and Applications

    NARCIS (Netherlands)

    Brons, M.R.E.

    2006-01-01

    Vast increases in the external costs of transport in the late twentieth century have caused national and international governmental bodies to worry about the sustainability of their transport systems. In this thesis we use meta-analysis as a research method to study various topics in transport econ

  12. A Study of Online Exams Procrastination Using Data Analytics Techniques

    Science.gov (United States)

    Levy, Yair; Ramim, Michelle M.

    2012-01-01

    Procrastination appears to be an inevitable part of daily life, especially for activities that are bounded by deadlines. It has implications for performance and is known to be linked to poor personal time management. Although research related to procrastination as a general behavior has been well established, studies assessing procrastination in…

  13. Analytical techniques for the study of polyphenol-protein interactions.

    Science.gov (United States)

    Poklar Ulrih, Nataša

    2017-07-03

    This mini review focuses on advances in biophysical techniques to study polyphenol interactions with proteins. Polyphenols have many beneficial pharmacological properties, as a result of which they have been the subject of intensive studies. The most conventional techniques described here can be divided into three groups: (i) methods used for screening (in-situ methods); (ii) methods used to gain insight into the mechanisms of polyphenol-protein interactions; and (iii) methods used to study protein aggregation and precipitation. All of these methods used to study polyphenol-protein interactions are based on modifications to the physicochemical properties of the polyphenols or proteins after binding/complex formation in solution. To date, numerous review articles have been published in the field of polyphenols. This review will give a brief insight in computational methods and biosensors and cell-based methods, spectroscopic methods including fluorescence emission, UV-vis adsorption, circular dichroism, Fourier transform infrared and mass spectrometry, nuclear magnetic resonance, X-ray diffraction, and light scattering techniques including small-angle X-ray scattering and small-angle neutron scattering, and calorimetric techniques (isothermal titration calorimetry and differential scanning calorimetry), microscopy, the techniques which have been successfully used for polyphenol-protein interactions. At the end the new methods based on single molecule detection with high potential to study polyphenol-protein interactions will be presented. The advantages and disadvantages of each technique will be discussed as well as the thermodynamic, kinetic or structural parameters, which can be obtained. The other relevant biophysical experimental techniques that have proven to be valuable, such electrochemical methods, hydrodynamic techniques and chromatographic techniques will not be described here.

  14. A Study on Predictive Analytics Application to Ship Machinery Maintenance

    Science.gov (United States)

    2013-09-01

    VBA , and the codes can be found in Appendix. The baseline model is tested with data from Main Engine Cylinder 3. In this study, 70% of the data are... modeling of failures. There is a threshold limit of 520 degree Celsius for the EGT prior to the need for human intervention. With this knowledge, the use...of time series forecasting technique, to predict the crossing over of threshold, is appropriate to model the EGT as a function of its operating

  15. ANALYTICAL REVIEW OF ELECTRONIC RESOURCES FOR THE STUDY OF LATIN

    Directory of Open Access Journals (Sweden)

    Olena Yu. Balalaieva

    2014-04-01

    Full Text Available The article investigates the current state of development of e-learning content in the Latin language. It is noted that the introduction of ICT in the educational space has expanded the possibility of studying Latin, opened access to digital libraries resources, made it possible to use scientific and educational potential and teaching Latin best practices of world's leading universities. A review of foreign and Ukrainian information resources and electronic editions for the study of Latin is given. Much attention was paid to the didactic potential of local and online multimedia courses of Latin, electronic textbooks, workbooks of interactive tests and exercises, various dictionaries and software translators, databases and digital libraries. Based on analysis of the world market of educational services and products the main trends in the development of information resources and electronic books are examined. It was found that multimedia courses with interactive exercises or workbooks with interactive tests, online dictionaries and translators are the most widely represented and demanded. The noticeable lagging of Ukrainian education and computer linguistics in quantitative and qualitative measures in this industry is established. The obvious drawback of existing Ukrainian resources and electronic editions for the study of Latin is their noninteractive nature. The prospects of e-learning content in Latin in Ukraine are outlined.

  16. PREVALENCE OF SEIZURE IN PKU:AN ANALYTIC HISTORICAL STUDY

    Directory of Open Access Journals (Sweden)

    Parvaneh KARIMZADEH

    2010-10-01

    Full Text Available ObjectivePhenylketonuria (PKU is an autosomal recessive metabolic genetic disorder characterized by a deficiency in the hepatic enzyme phenylalanine hydroxylase (PAH which can cause problems with brain development, leading to progressive mental retardation, brain damage, and seizures. In this study we evaluated the frequency of seizure, EEG abnormality and behavioral disorders.Materials & Methods In this case study, 94 PKU children aged between 1 month and 23 years who were referred to Mofid children Hospital between 2009 and 2010 were enrolled.Patients were age and sex matched. Statistical tests were used for comparing patients' data.Results The mean age of patients was 8.4 years. Parents were relatives in 80.9% of the cases (76 patients. Of all, 43% (45 patients had seizure but EEG was abnormal only in 81% of them (35 patients out of 43 patients. Totally, EEG was abnormal in 67% of the cases (63 patients of whom 44.4% (28 patients of 63 patients did not have seizure. Therefore, there was a significant relationship between seizure and EEG abnormality. The phenylalanine level ranged from 8mg/dL to 50mg/dL (mean: 18.88 mg/dL at the time of diagnosis and from 0.4mg/dL to 18mg/dL (mean: 7.37mg/dL at the time of evaluation. On the other hand,we observed abnormal behaviors in all EEG abnormalities and there was a significant relationship between EEG abnormality and behavioral disorders.ConclusionIn our study, the prevalence of seizure was less than EEG abnormality and there was a significant relationship between EEG abnormalities and behavioral disorders in patients with Phenylketonuria regardless of seizure.The authors believe that treatment of EEG abnormalities may lead to the correction of behavioral disorders in these patients.Keywords:Phenylketonuria, Seizure, EEG abnormality, behavioral disorder

  17. PREVALENCE OF SEIZURE IN PKU:AN ANALYTIC HISTORICAL STUDY

    Directory of Open Access Journals (Sweden)

    RAHIMPOUR Feisal

    2010-09-01

    Full Text Available ObjectivePhenylketonuria (PKU is an autosomal recessive metabolic genetic disorder characterized by a deficiency in the hepatic enzyme phenylalanine hydroxylase (PAH which can cause problems with brain development, leading to progressive mental retardation, brain damage, and seizures. In this study we evaluated the frequency of seizure, EEG abnormality and behavioral disorders.Materials & Methods In this case study, 94 PKU children aged between 1 month and 23 years who were referred to Mofid children Hospital between 2009 and 2010 were enrolled.Patients were age and sex matched. Statistical tests were used for comparing patients' data.Results The mean age of patients was 8.4 years. Parents were relatives in 80.9% of the cases (76 patients. Of all, 43% (45 patients had seizure but EEG was abnormal only in 81% of them (35 patients out of 43 patients. Totally, EEG was abnormal in 67% of the cases (63 patients of whom 44.4% (28 patients of 63 patients did not have seizure. Therefore, there was a significant relationship between seizure and EEG abnormality. The phenylalanine level ranged from 8mg/dL to 50mg/dL (mean: 18.88 mg/dL at the time of diagnosis and from 0.4mg/dL to 18mg/dL (mean: 7.37mg/dL at the time of evaluation. On the other hand,we observed abnormal behaviors in all EEG abnormalities and there was a significant relationship between EEG abnormality and behavioral disorders.Conclusion In our study, the prevalence of seizure was less than EEG abnormality and there was a significant relationship between EEG abnormalities and behavioral disorders in patients with Phenylketonuria regardless of seizure.The authors believe that treatment of EEG abnormalities may lead to the correction of behavioral disorders in these patients.

  18. Indian Kisan Credit Card Scheme: An Analytical Study

    Directory of Open Access Journals (Sweden)

    Dharmendra Mehta

    2016-03-01

    Full Text Available Kisan Credit Card (KCC has now been regarded as the only medium of short-term credit for agriculture. The Kisan Credit Card (KCC scheme was introduced by the Finance Minister in his budget speech in the year 1998-99. From the year 1998-99, the scheme was implemented by public sector commercial banks, RRBs (Regional Rural Banks and cooperative banks in the country. It has emerged as an innovative credit distribution system to meet the production credit requirements of the farmers in a timely and easy manner. The present paper is aimed to study role of Kisan Credit Card in the rural credit facilitation in India.

  19. Experimental and Analytical Studies for a Computational Materials Program

    Science.gov (United States)

    Knauss, W. G.

    1999-01-01

    The studies supported by Grant NAG1-1780 were directed at providing physical data on polymer behavior that would form the basis for computationally modeling these types of materials. Because of ongoing work in polymer characterization this grant supported part of a larger picture in this regard. Efforts went into two combined areas of their time dependent mechanical response characteristics: Creep properties on the one hand, subject to different volumetric changes (nonlinearly viscoelastic behavior) and time or frequency dependence of dilatational material behavior. The details of these endeavors are outlined sufficiently in the two appended publications, so that no further description of the effort is necessary.

  20. Analytical Study of Feature Extraction Techniques in Opinion Mining

    Directory of Open Access Journals (Sweden)

    Pravesh Kumar Singh

    2013-07-01

    Full Text Available Although opinion mining is in a nascent stage of de velopment but still the ground is set for dense growth of researches in the field. One of the important activities of opinion mining is to extract opinions of people based on characteristics of the object under study. Feature extraction in opinion mining can be done by various ways like that of clustering, support vector machines etc. This paper is an attempt to appraise the vario us techniques of feature extraction. The first part discusses various techniques and second part m akes a detailed appraisal of the major techniques used for feature extraction.

  1. Experimental and Analytic Studies of an RF Load Resistor

    Energy Technology Data Exchange (ETDEWEB)

    Borovina, D.L.; Humphries, S.; Gahl, J.M.; Rees, D.

    1999-03-29

    The pulsed output of an 850-MHz klystron was directed into a load assembly containing a water-cooled, 50-ohm resistor. The load was systematically subjected to high peak-power pulses from the klystron. Several thin-film resistors were tested and exhibited various damage patterns for different combinations of peak microwave power (33 kW - 500 kW) and heat input. In order to better understand the phenomena observed, the electromagnetic field distribution inside the resistor housing was studied with WaveSim, a two-dimensional, finite-element scattering code. The conformal mesh of the program allowed accurate representations of the complex assembly geometry.

  2. Analytical study of ultrasound influence on the molten metals atomization

    Science.gov (United States)

    Antonnikova, A.; Arkhipov, V.; Boiko, V.; Basalaev, S.; Konovalenko, A.; Zolotorev, N.

    2016-04-01

    This paper focuses on the study of influence of ultrasound on liquid atomization using ejection nozzles. Two principles of influence of ultrasound on the atomization process such as a change of conditions on gas-liquid boundary during the generation of ultrasound oscillation in the gas and liquid jet (film) disintegration under the action of capillary forces in cases of generation of ultrasound oscillation in the liquid are considered. The optimal values of the ultrasound oscillation frequencies are calculated. Two constructions of the nozzles patented are proposed.

  3. Analytical studies of the Alexandrovo Thracian tomb wall paintings

    Science.gov (United States)

    Glavcheva, Z.; Yancheva, D.; Velcheva, E.; Stamboliyska, B.; Petrova, N.; Petkova, V.; Lalev, G.; Todorov, V.

    2016-01-01

    A profound study of samples obtained from Thracian tomb wall paintings at Alexandrovo, Bulgaria (dating back to the fourth century BC) were carried out by differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR) and Attenuated Total Reflectance Fourier transform infrared spectroscopy (ATR FTIR), high-resolution transmission electron microscopy (HRTEM) and energy dispersive X-ray spectroscopy (EDS). The current work provides a glimpse of the ingenious construction and painting techniques used in Thracian tomb at Alexandrovo. The results suggest that beeswax was used as a paint binder and also revealed presence of various nano-materials.

  4. Indian Kisan Credit Card Scheme: An Analytical Study

    Directory of Open Access Journals (Sweden)

    Dharmendra Mehta

    2016-03-01

    Full Text Available Kisan Credit Card (KCC has now been regarded as the only medium of short-term credit for agriculture. The Kisan Credit Card (KCC scheme was introduced by the Finance Minister in his budget speech in the year 1998-99. From the year 1998-99, the scheme was implemented by public sector commercial banks, RRBs (Regional Rural Banks and cooperative banks in the country. It has emerged as an innovative credit distribution system to meet the production credit requirements of the farmers in a timely and easy manner. The present paper is aimed to study role of Kisan Credit Card in the rural credit facilitation in India.

  5. Antinomy in Legislation in Indonesia

    Directory of Open Access Journals (Sweden)

    Zainal Arifin Mochtar

    2015-12-01

    Full Text Available A number of reality for laws as a production of Parliament and President was canceled by the Constitutional Court, occur as a result of the legislation matter that plural reflects the injustice and legal uncertainty. The high number of judicial review becomes signal less accommodation of citizen interests and rights in a legislation product. The absence of arrangement harmony made by Parliament gives impact on plural legislation sued. This paper attempts to describe some debate antinomy that characterizes the existence of legislation in Indonesia. The analysis showed, antinomy-conflict-norm in the legislation is one thing that is difficult to avoid, especially given the poor-legislative process in the parliament today. In each establishment of legislation, synchronization and norms harmonization is not a major pressing point, but defeated by transnational politics inter-faction in the parliament that actually looked more dominant. But when these norms conflict constituted a rule of law which are simultaneous, dynamic, and meet legal ideals, would not be a problem. As long as not to cause harm to the fulfillment of constitutional rights of citizens.

  6. Discourse analytic study of counseling sessions in stroke physiotherapy.

    Science.gov (United States)

    Talvitie, Ulla; Pyöriä, Outi

    2006-01-01

    Studies on the interaction between physiotherapists and patients during treatment sessions have found low levels of communicative participation by patients and lack of direct influence by patients on the content of their treatment. This article reports the results of 7 counseling sessions in which physiotherapists and patients with stroke and their caregivers discussed the patients' postural control and balance, which had been tested and videotaped at different stages of the rehabilitation process. The physiotherapists' discourses relating to the videotaped test performances were either brief comments on the patient's performance or critical appraisals with references to difficulties encountered during performance. Performances of the easier tasks were treated by the physiotherapists with rhetorical questions. The second type of discourse consisted of the physiotherapists directing the patients' attention to their problems, and of the patients' and caregivers' initiatives leading to conversation about the patients' problems. The patients understood the significance of the test performance for their life at home in varying ways. The results of this study showed that successful counseling calls for physiotherapists to develop dialogic communication skills to help patients in coconstructing their home exercise together with their social network.

  7. Photocatalytic degradation of rosuvastatin: Analytical studies and toxicity evaluations

    Energy Technology Data Exchange (ETDEWEB)

    Machado, Tiele Caprioli, E-mail: tiele@enq.ufrgs.br [Chemical Engineering Department, Federal University of Rio Grande do Sul, Rua Engenheiro Luiz Englert s/n, CEP: 90040-040 Porto Alegre, RS (Brazil); Pizzolato, Tânia Mara [Chemical Institute, Federal University of Rio Grande do Sul, Avenida Bento Gonçalves, 9500, CEP: 91501-970 Porto Alegre, RS (Brazil); Arenzon, Alexandre [Ecology Center, Federal University of Rio Grande do Sul, Avenida Bento Gonçalves, 9500, CEP: 91501-970 Porto Alegre, RS (Brazil); Segalin, Jeferson [Biotechnology Center, Federal University of Rio Grande do Sul, Avenida Bento Gonçalves, 9500, CEP: 91501-970 Porto Alegre, RS (Brazil); Lansarin, Marla Azário [Chemical Engineering Department, Federal University of Rio Grande do Sul, Rua Engenheiro Luiz Englert s/n, CEP: 90040-040 Porto Alegre, RS (Brazil)

    2015-01-01

    Photocatalytic degradation of rosuvastatin, which is a drug that has been used to reduce blood cholesterol levels, was studied in this work employing ZnO as catalyst. The experiments were carried out in a temperature-controlled batch reactor that was irradiated with UV light. Preliminary the effects of the photocatalyst loading, the initial pH and the initial rosuvastatin concentration were evaluated. The experimental results showed that rosuvastatin degradation is primarily a photocatalytic process, with pseudo-first order kinetics. The byproducts that were generated during the oxidative process were identified using nano-ultra performance liquid chromatography tandem mass spectrometry (nano-UPLC–MS/MS) and acute toxicity tests using Daphnia magna were done to evaluate the toxicity of the untreated rosuvastatin solution and the reactor effluent. - Highlights: • The photocatalytic degradation of rosuvastatin was studied under UV irradiation. • Commercial catalyst ZnO was used. • Initial rosuvastatin concentration, photocatalyst loading and pH were evaluated. • The byproducts generated during the oxidative process were detected and identified. • Acute toxicity tests using Daphnia magna were carried out.

  8. 2MASS analytical study of four open cluster candidates

    Science.gov (United States)

    Bisht, D.; Yadav, R. K. S.; Durgapal, A. K.

    2017-04-01

    The astrophysical parameters of four poorly studied open star clusters namely Teutsch 126, Teutsch 54, Teutsch 61 and Czernik 3, have been estimated using the Two Micron All Sky Survey (2MASS) database. The stellar density distributions and color-magnitude diagrams are used to determine their structural parameters (cluster center, cluster radius, core radius, tidal radius, Galactocenteric coordinates and the distance from the Galactic plane). We have also derived age, color excesses, total mass, relaxation time, luminosity and mass function for each clusters. The mass function slopes for these clusters are derived as 1.59 ± 0.62, 1.31 ± 0.60, 1.22 ± 0.75 and 1.62 ± 0.56 for Teutsch 126, Teutsch 54, Teutsch 61 and Czernik 3 respectively. These values are very close with the Salpeter value (x = 1.35) within the errors. The effect of mass-segregation are observed in the clusters Teutsch 126 and Teutsch 61. Estimated values of dynamical relaxation time are less than age of the clusters under study. This concludes that these objects are dynamically relaxed. The possible reason for relaxation may be due to the dynamical evolution or imprint of star formation or both.

  9. ANALYTICAL STUDY OF POPULATION STRUCTURE BY SAMPLING IN RURAL AREAS

    Directory of Open Access Journals (Sweden)

    F. Azordegan

    1973-03-01

    Full Text Available Despite the care taken to ensure the quality of date collected by enumeration and sampling, the final tabulation will sometimes give obvious indication of errors in basic information. Evaluation of these errors furnishes those who use such a study and sampling. More general, the finding in these studies should be helpful to others that conduct surveys. In order to compare the age composition of the rural areas between two provinces of IRAN, i.e. AZARBAIJAN, and ISFAHAN, a sample of each has selected (8 and 23 counties respectively.The main idea was to evaluate the errors in age recording and the effect of digit preference on the age composition of the population. It became evident that, AZARBAIJAN has a smaller family size, lower median age, higher sex ratio and lower dependency ratio than ISFAHAN. More over, the age pyramid of ISFAHAN has a better shape and more regular than AZARBAIJAN and therefore the Myer’s Index which determines the degree of dispersion in age reporting is lower in ISFAHAN which may be the result of higher literacy in ISFAHAN. Generally men in both samples report their age more precisely than women.

  10. AN ANALYTICAL STUDY AND SYNTHESIS ON WEB SERVER SECURITY

    Directory of Open Access Journals (Sweden)

    Jyoti Pandey

    2015-10-01

    Full Text Available Web servers are being as a viable means to access Internet-based applications. Latest Approaches to secure Web servers are not much efficient or robust enough to protect and their applications from hackers. There are several approaches and analogies to examine the minimum-security requirements of a system. But The Highly efficient Techniques approaches as Protection profile, a systematic approach Therefore, we derive the Web security components that make a secure Web server from the Web Server Protection Profile. Study of A component-based framework as well as an open source solution has been done subsequently in this paper We believe that after the studying of such a system (implemented and deployed later, it will function reliably and effectively. This work aims at establishing the provable reliability of construction and the feasibility of component-based solutions for the secure Web server. This paper gives a theoretical approach and analogy of Profiling a web server including All three basic security models together( System security, Transmission security & Access Control Systemetc.

  11. Microstructural studies of dental amalgams using analytical transmission electron microscopy

    Science.gov (United States)

    Hooghan, Tejpal Kaur

    Dental amalgams have been used for centuries as major restorative materials for decaying teeth. Amalgams are prepared by mixing alloy particles which contain Ag, Sn, and Cu as the major constituent elements with liquid Hg. The study of microstructure is essential in understanding the setting reactions and improving the properties of amalgams. Until the work reported in this dissertation, optical microscopy (OM), scanning electron microscopy (SEM), and x-ray diffractometry (XRD) were used commonly to analyze amalgam microstructures. No previous systematic transmission electron microscopy (TEM) study has been performed due to sample preparation difficulties and composite structure of dental amalgams. The goal of this research was to carry out detailed microstructural and compositional studies of dental amalgams. This was accomplished using the enhanced spatial resolution of the TEM and its associated microanalytical techniques, namely, scanning transmission electron microscopy (STEM), x-ray energy dispersive spectroscopy (XEDS) and micro-microdiffraction (mumuD). A new method was developed for thinning amalgam samples to electron transparency using the "wedge technique." Velvalloy, a low-Cu amalgam, and Tytin, a high-Cu amalgam, were the two amalgams characterized. Velvalloy is composed of a Agsb2Hgsb3\\ (gammasb1)/HgSnsb{7-9}\\ (gammasb2) matrix surrounding unreacted Agsb3Sn (gamma) particles. In addition, hitherto uncharacterized reaction layers between Agsb3Sn(gamma)/Agsb2Hgsb3\\ (gammasb2)\\ and\\ Agsb2Hgsb3\\ (gammasb1)/HgSnsb{7-9}\\ (gammasb2) were observed and analyzed. An Ag-Hg-Sn (betasb1) phase was clearly identified for the first time. In Tytin, the matrix consists of Agsb2Hgsb3\\ (gammasb1) grains. Fine precipitates of Cusb6Snsb5\\ (etasp') are embedded inside the gammasb1 and at the grain boundaries. These precipitates are responsible for the improved creep resistance of Tytin compared to Velvalloy. The additional Cu has completely eliminated the gammasb

  12. Micro-analytical studies on sugar cane bagasse ash

    Indian Academy of Sciences (India)

    P Jagadesh; A Ramachandramurthy; R Murugesan; K Sarayu

    2015-08-01

    The worldwide production of sugar generates large volumes of bagasse wastes, which are burnt in uncontrolled manner for heating boiler, which are deposited in landfills, which create negative effects in the environment. The ash obtained by burning bagasse is generally used as Supplementary Cementing Material (SCM) in concrete production without proper knowledge of pozzolanic material characterization. This paper summarizes the results obtained from the various techniques to determine pozzolanic mineral profiles in sugarcane bagasse ash (SCBA). Techniques employed in the present study include X-Ray Diffraction (XRD), Energy-Dispersive X-ray Analysis (EDAX) spectrometer, Fourier Transform Infra-Red Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Thermal Analysis [Thermo-Gravimetric Analysis (TGA) and Derivative Thermo-Gravimetric (DTG)] in order to understand the type, form, nature, morphology, concentration, etc. of pozzolanic minerals.

  13. THE FARTHEST MOSQUE OR THE ALLEGED TEMPLE AN ANALYTIC STUDY

    Directory of Open Access Journals (Sweden)

    Yehia Hassan Wazeri

    2013-12-01

    Full Text Available Abstract The Farthest Mosque (Al-Masjid Al-Aqsa in Jerusalem has been associated in the consciousness of the Muslims, with The Sacred Mosque (Al-Masjid Al-Haram in Makkah through a spiritual bond since the event of Isra’ (Night Journey and Mi`raj (Ascension to Heaven. The objective of this study is to determine the orientation of the Farthest Mosque and illustrate the similarity in geometric shape (plan and proportions, between the Farthest Mosque in Jerusalem and the sacred mosque (Al-Ka`bah in Makkah, in the first part of the research. The second part of the research involves a study of some texts from the Old Testament that address the architectural and structural descriptions of the alleged temple, with the purpose of exposing whether glaring contradictions exist between the texts of the Old Testament themselves or between them and the real architectural and structural facts acknowledged by specialists in this field. Keywords: The Farthest mosque, the Alleged Temple, Al-Ka`bah, geometric similarity     Abstrak Masjid tertua (Masjid al-Aqsa di Jarusalem telah dihubungkan dalam kesadaran umat muslim, dengan masjid suci (Masjidil Haram di Mekah melalui ikatan spiritual sejak kejadian Isra’ (perjalanan malam dan Mi’raj (kenaikan  ke  surga.  Tujuan  dari  kajian  ini  adalah  untuk  menentukan  orientasi  masjid  tertua  and menggambarkan kesamaan bentuk geometri (denah dan proporsi, antara masjid tertua di Jarusalem dan masjid suci (Ka’bah di Mekah, di bagian pertama penelitian. Bagian kedua penelitian melibatkan kajian beberapa tulisan dari surat wasiat kuno yang mengarah kepada deskripsi arsitektural dan struktural kuil, dengan tujuan mengekspos baik kontradiksi yang mencolok antara tulisan surat wasiat kuno itu sendiri maupun di antara mereka, dan fakta arsitektural dan struktural yang nyata diakui oleh spesialis di lapangan   Kata kunci: masjid tertua, kuil, ka’bah, kesamaan geometri

  14. An Analytical Study of Tools and Techniques for Movie Marketing

    Directory of Open Access Journals (Sweden)

    Garima Maik

    2014-08-01

    Full Text Available Abstract. Bollywood or Hindi movie industry is one of the fastest growing sector in the media and entertainment space creating numerous business and employment opportunities. Movies in India are a major source of entertainment for all sects of society. They not only face competition from other movie industries and movies but from other source of entertainment such as adventure sports, amusement parks, theatre and drama, pubs and discothèques. A lot of man power, man hours, creative brains, and money are put in to build a quality feature film. Bollywood is the industry which continuously works towards providing the 7 billion population with something new always. So it is important for the movie and production team to stand out, to grab the due attention of the maximum audience. Movie makers employ various tools and techniques today to market their movies. They leave no stone unturned. They roll out teasers, First look, Theatrical trailer release, Music launch, City tours, Producer’s and director’s interview, Movie premier, Movie release, post release follow up and etc. to pull the viewers to the Cineplex. The audience today which comprises mainly of youth requires photos, videos, meet ups, gossip, debate, collaboration and content creation. These requirements of today’s generation are most fulfilled through digital platforms. However, the traditional media like newspapers, radio, and television are not old school. They reach out to mass audience and play an upper role in effective marketing. This study aims at analysing these tools for their effectiveness. The objectives are fulfilled through a consumer survey. This study will bring out the effectiveness and relational importance of various tools which are employed by movie marketers to generate maximum returns on the investments by using various data reduction techniques like factor analysis and statistical techniques like chi-square test with data visualization using pie charts

  15. An Analytical Study of Tools and Techniques for Movie Marketing

    Directory of Open Access Journals (Sweden)

    Garima Maik

    2014-08-01

    Full Text Available Abstract. Bollywood or Hindi movie industry is one of the fastest growing sector in the media and entertainment space creating numerous business and employment opportunities. Movies in India are a major source of entertainment for all sects of society. They not only face competition from other movie industries and movies but from other source of entertainment such as adventure sports, amusement parks, theatre and drama, pubs and discothèques. A lot of man power, man hours, creative brains, and money are put in to build a quality feature film. Bollywood is the industry which continuously works towards providing the 7 billion population with something new always. So it is important for the movie and production team to stand out, to grab the due attention of the maximum audience. Movie makers employ various tools and techniques today to market their movies. They leave no stone unturned. They roll out teasers, First look, Theatrical trailer release, Music launch, City tours, Producer’s and director’s interview, Movie premier, Movie release, post release follow up and etc. to pull the viewers to the Cineplex. The audience today which comprises mainly of youth requires photos, videos, meet ups, gossip, debate, collaboration and content creation. These requirements of today’s generation are most fulfilled through digital platforms. However, the traditional media like newspapers, radio, and television are not old school. They reach out to mass audience and play an upper role in effective marketing. This study aims at analysing these tools for their effectiveness. The objectives are fulfilled through a consumer survey. This study will bring out the effectiveness and relational importance of various tools which are employed by movie marketers to generate maximum returns on the investments by using various data reduction techniques like factor analysis and statistical techniques like chi-square test with data visualization using pie charts

  16. On analytical study of holographic superconductors with Born–Infeld electrodynamics

    Directory of Open Access Journals (Sweden)

    Chuyu Lai

    2015-10-01

    Full Text Available Based on the Sturm–Liouville eigenvalue problem, Banerjee et al. proposed a perturbative approach to analytically investigate the properties of the (2+1-dimensional superconductor with Born–Infeld electrodynamics (Banerjee et al., 2013 [29]. By introducing an iterative procedure, we will further improve the analytical results and the consistency with the numerical findings, and can easily extend the analytical study to the higher-dimensional superconductor with Born–Infeld electrodynamics. We observe that the higher Born–Infeld corrections make it harder for the condensation to form but do not affect the critical phenomena of the system. Our analytical results can be used to back up the numerical computations for the holographic superconductors with various condensates in Born–Infeld electrodynamics.

  17. On analytical study of holographic superconductors with Born-Infeld electrodynamics

    CERN Document Server

    Lai, Chuyu; Jing, Jiliang; Wang, Yongjiu

    2015-01-01

    Based on the Sturm-Liouville eigenvalue problem, Banerjee \\emph{et al.} proposed a perturbative approach to analytically investigate the properties of the ($2+1$)-dimensional superconductor with Born-Infeld electrodynamics [Phys. Rev. D {\\bf 87}, 104001 (2013)]. By introducing an iterative procedure, we will further improve the analytical results and the consistency with the numerical findings, and can easily extend the analytical study to the higher-dimensional superconductor with Born-Infeld electrodynamics. We observe that the higher Born-Infeld corrections make it harder for the condensation to form but do not affect the critical phenomena of the system. Our analytical results can be used to back up the numerical computations for the holographic superconductors with various condensates in Born-Infeld electrodynamics.

  18. Analytical techniques applied to study cultural heritage objects

    Energy Technology Data Exchange (ETDEWEB)

    Rizzutto, M.A.; Curado, J.F.; Bernardes, S.; Campos, P.H.O.V.; Kajiya, E.A.M.; Silva, T.F.; Rodrigues, C.L.; Moro, M.; Tabacniks, M.; Added, N., E-mail: rizzutto@if.usp.br [Universidade de Sao Paulo (USP), SP (Brazil). Instituto de Fisica

    2015-07-01

    The scientific study of artistic and cultural heritage objects have been routinely performed in Europe and the United States for decades. In Brazil this research area is growing, mainly through the use of physical and chemical characterization methods. Since 2003 the Group of Applied Physics with Particle Accelerators of the Physics Institute of the University of Sao Paulo (GFAA-IF) has been working with various methodologies for material characterization and analysis of cultural objects. Initially using ion beam analysis performed with Particle Induced X-Ray Emission (PIXE), Rutherford Backscattering (RBS) and recently Ion Beam Induced Luminescence (IBIL), for the determination of the elements and chemical compounds in the surface layers. These techniques are widely used in the Laboratory of Materials Analysis with Ion Beams (LAMFI-USP). Recently, the GFAA expanded the studies to other possibilities of analysis enabled by imaging techniques that coupled with elemental and compositional characterization provide a better understanding on the materials and techniques used in the creative process in the manufacture of objects. The imaging analysis, mainly used to examine and document artistic and cultural heritage objects, are performed through images with visible light, infrared reflectography (IR), fluorescence with ultraviolet radiation (UV), tangential light and digital radiography. Expanding more the possibilities of analysis, new capabilities were added using portable equipment such as Energy Dispersive X-Ray Fluorescence (ED-XRF) and Raman Spectroscopy that can be used for analysis 'in situ' at the museums. The results of these analyzes are providing valuable information on the manufacturing process and have provided new information on objects of different University of Sao Paulo museums. Improving the arsenal of cultural heritage analysis it was recently constructed an 3D robotic stage for the precise positioning of samples in the external beam setup

  19. Analytical study of nozzle performance for nuclear thermal rockets

    Science.gov (United States)

    Davidian, Kenneth O.; Kacynski, Kenneth J.

    1991-01-01

    Nuclear propulsion has been identified as one of the key technologies needed for human exploration of the Moon and Mars. The Nuclear Thermal Rocket (NTR) uses a nuclear reactor to heat hydrogen to a high temperature followed by expansion through a conventional convergent-divergent nozzle. A parametric study of NTR nozzles was performed using the Rocket Engine Design Expert System (REDES) at the NASA Lewis Research Center. The REDES used the JANNAF standard rigorous methodology to determine nozzle performance over a range of chamber temperatures, chamber pressures, thrust levels, and different nozzle configurations. A design condition was set by fixing the propulsion system exit radius at five meters and throat radius was varied to achieve a target thrust level. An adiabatic wall was assumed for the nozzle, and its length was assumed to be 80 percent of a 15 degree cone. The results conclude that although the performance of the NTR, based on infinite reaction rates, looks promising at low chamber pressures, finite rate chemical reactions will cause the actual performance to be considerably lower. Parameters which have a major influence on the delivered specific impulse value include the chamber temperature and the chamber pressures in the high thrust domain. Other parameters, such as 2-D and boundary layer effects, kinetic rates, and number of nozzles, affect the deliverable performance of an NTR nozzle to a lesser degree. For a single nozzle, maximum performance of 930 seconds and 1030 seconds occur at chamber temperatures of 2700 and 3100 K, respectively.

  20. Child Abuse in the Family: An Analytical Study

    Directory of Open Access Journals (Sweden)

    D Shojaeizadeh

    2001-07-01

    Full Text Available The prevalence of child abuse in the world is 47 per 1000. According to the Child Protective Service agency (CPS more than 3 million children were abused in the USA in 1998. There was 1.7% increase in comparison with 1996. The prevalence of child abuse in the USA is 15 per 1000. A crosssectional study was conducted in order to determine the frequency, and influential factors on child abuse among families in Tehran. A sample of 420 students was selected from secondary school girls in Tehran in 1999. A questionnaire was used for data collection, and the collected data were analysed through statistical tests such as X2 and other forms of descriptive tests. The findings of research showed that in terms of abnormal (unexpectedly bad behaviour, 28% of the sample were faced quarrelsome and bitted by their fathers. The mothers' reactions for similar behaviour were more or less the same: 34.9% quarrelsome and 7% bitting. Child abuse, physically and emotionally, has had significant relation with socioeconomic status of families as well as having interaction with mentally ill or addicted person(s among families. Mothers' employment, religious beliefs, and parents' educational attainments also demonstrated significant relations with child abuse. A statistically significant relationship has also been found between mothers' employment, addicted or mentally ill person among family members, and doubtful child sexual abuse.To prevent child abuse the following actions should be taken: Education of parents about children rights and how to treat their children. Establishment of centers to protect the children at risk. Education of young couples to take more reponsibility of having children.

  1. An Analytical Study of Mammalian Bite Wounds Requiring Inpatient Management

    Directory of Open Access Journals (Sweden)

    Young-Geun Lee

    2013-11-01

    Full Text Available BackgroundMammalian bite injuries create a public health problem because of their frequency, potential severity, and increasing number. Some researchers have performed fragmentary analyses of bite wounds caused by certain mammalian species. However, little practical information is available concerning serious mammalian bite wounds that require hospitalization and intensive wound management. Therefore, the purpose of this study was to perform a general review of serious mammalian bite wounds.MethodsWe performed a retrospective review of the medical charts of 68 patients who were referred to our plastic surgery department for the treatment of bite wounds between January 2003 and October 2012. The cases were analyzed according to the species, patient demographics, environmental factors, injury characteristics, and clinical course.ResultsAmong the 68 cases of mammalian bite injury, 58 (85% were caused by dogs, 8 by humans, and 2 by cats. Most of those bitten by a human and both of those bitten by cats were male. Only one-third of all the patients were children or adolescents. The most frequent site of injury was the face, with 40 cases, followed by the hand, with 16 cases. Of the 68 patients, 7 were treated with secondary intention healing. Sixty-one patients underwent delayed procedures, including delayed direct closure, skin graft, composite graft, and local flap.ConclusionsBased on overall findings from our review of the 68 cases of mammalian bites, we suggest practical guidelines for the management of mammalian bite injuries, which could be useful in the treatment of serious mammalian bite wounds.

  2. Smoke-free legislation and child health

    Science.gov (United States)

    Faber, Timor; Been, Jasper V; Reiss, Irwin K; Mackenbach, Johan P; Sheikh, Aziz

    2016-01-01

    In this paper, we aim to present an overview of the scientific literature on the link between smoke-free legislation and early-life health outcomes. Exposure to second-hand smoke is responsible for an estimated 166 ,000 child deaths each year worldwide. To protect people from tobacco smoke, the World Health Organization recommends the implementation of comprehensive smoke-free legislation that prohibits smoking in all public indoor spaces, including workplaces, bars and restaurants. The implementation of such legislation has been found to reduce tobacco smoke exposure, encourage people to quit smoking and improve adult health outcomes. There is an increasing body of evidence that shows that children also experience health benefits after implementation of smoke-free legislation. In addition to protecting children from tobacco smoke in public, the link between smoke-free legislation and improved child health is likely to be mediated via a decline in smoking during pregnancy and reduced exposure in the home environment. Recent studies have found that the implementation of smoke-free legislation is associated with a substantial decrease in the number of perinatal deaths, preterm births and hospital attendance for respiratory tract infections and asthma in children, although such benefits are not found in each study. With over 80% of the world’s population currently unprotected by comprehensive smoke-free laws, protecting (unborn) children from the adverse impact of tobacco smoking and SHS exposure holds great potential to benefit public health and should therefore be a key priority for policymakers and health workers alike. PMID:27853176

  3. Nationwide Multicenter Reference Interval Study for 28 Common Biochemical Analytes in China.

    Science.gov (United States)

    Xia, Liangyu; Chen, Ming; Liu, Min; Tao, Zhihua; Li, Shijun; Wang, Liang; Cheng, Xinqi; Qin, Xuzhen; Han, Jianhua; Li, Pengchang; Hou, Li'an; Yu, Songlin; Ichihara, Kiyoshi; Qiu, Ling

    2016-03-01

    A nationwide multicenter study was conducted in the China to explore sources of variation of reference values and establish reference intervals for 28 common biochemical analytes, as a part of the International Federation of Clinical Chemistry and Laboratory Medicine, Committee on Reference Intervals and Decision Limits (IFCC/C-RIDL) global study on reference values. A total of 3148 apparently healthy volunteers were recruited in 6 cities covering a wide area in China. Blood samples were tested in 2 central laboratories using Beckman Coulter AU5800 chemistry analyzers. Certified reference materials and value-assigned serum panel were used for standardization of test results. Multiple regression analysis was performed to explore sources of variation. Need for partition of reference intervals was evaluated based on 3-level nested ANOVA. After secondary exclusion using the latent abnormal values exclusion method, reference intervals were derived by a parametric method using the modified Box-Cox formula. Test results of 20 analytes were made traceable to reference measurement procedures. By the ANOVA, significant sex-related and age-related differences were observed in 12 and 12 analytes, respectively. A small regional difference was observed in the results for albumin, glucose, and sodium. Multiple regression analysis revealed BMI-related changes in results of 9 analytes for man and 6 for woman. Reference intervals of 28 analytes were computed with 17 analytes partitioned by sex and/or age. In conclusion, reference intervals of 28 common chemistry analytes applicable to Chinese Han population were established by use of the latest methodology. Reference intervals of 20 analytes traceable to reference measurement procedures can be used as common reference intervals, whereas others can be used as the assay system-specific reference intervals in China.

  4. ANALYTICAL STUDY OF ESSENTIAL INFANTILE ESOTROPIA AND ITS MANAGEMENT

    Directory of Open Access Journals (Sweden)

    Kandasamy Sivakumar

    2017-06-01

    Full Text Available BACKGROUND Essential Infantile Esotropia (EIE is the most common type of strabismus. About 0.1% of the newborn are found to have esotropia. 1 Though present since birth, it becomes manifest and remains constant around six months of age. The features are large angle constant strabismus, defective Binocular Single Vision (BSV, cross fixation, DVD and latent nystagmus. Most of the patients have mild-to-moderate hyperopia; the amount of deviation is unrelated to the amount and type of refractive error. MATERIALS AND METHODS Fifty cases with EIE were included in this prospective study. A thorough ophthalmic and orthoptic evaluation was done in all the patients. For patients more than three years of age, the angle of deviation was measured with prism bar cover test, and for patients less than three years of age, angle of deviation was measured with Hirschberg’s test. Associated features like cross fixation, abduction limitation, Dissociated Vertical Deviation (DVD, nystagmus, amblyopia and Inferior Oblique Overaction (IOOA were documented. Occlusion therapy was given to amblyopic patients prior to surgery. All these patients underwent surgery and were followed up for a period of six months. RESULTS The prevalence of EIE in our centre was 0.33%. Of the fifty patients, 28 were males and 22 were female patients. 39 patients (78% had deviation of 30-50 Prism Dioptres (PD. Incidence of DVD, inferior oblique overaction and nystagmus was found to be lower when compared to western population. Amblyopia should be diagnosed early and treated adequately before surgery. Standard surgical option is bimedial recession. Monocular recession-resection surgery in one eye can be opted for in cases of irreversible amblyopia. Three or four muscle surgery can be done if deviation is very large. If marked inferior oblique overaction is present, the same should be weakened in addition to the horizontal muscle surgery. CONCLUSION EIE is the most common type of strabismus

  5. How Can We Study Learning with Geovisual Analytics Applied to Statistics?

    Directory of Open Access Journals (Sweden)

    Mikael Jern

    2011-12-01

    Full Text Available It is vital to understand what kind of processes for learning that Geovisual Analytics creates, as certain activities and conditions are produced when employing Geovisual Anlytic tools in education. To understand learning processes created by Geovisual Analytics, first requires an understanding of the interactions between the technology, the workplace where the learning takes place, and learners’ specific knowledge formation. When studying these types of interaction it demands a most critical consideration from theoretical perspectives on research design and methods. This paper first discusses common, and then a more uncommon, theoretical approach used within the fields of learning with multimedia environments and Geovisual Analytics, the socio-cultural theoretical perspective. The paper next advocates this constructivist theoretical and empirical perspective when studying learning with multiple representational Geovisual Analytic tools. To illustrate, an outline of a study made within this theoretical tradition is offered. The study is conducted in an educational setting where the Open Statistics eXplorer platform is used. Discussion of our study results shows that the socio-cultural perspective has much to offer in terms of what kind of understanding can be reached in conducting this kind of studies. Therefore, we argue that empirical research to analyze how specific communities use various Geovisual Analytics to evaluate information is best positioned in a socio-cultural theoretical perspective.

  6. Library Legislation: Some General Considerations

    Science.gov (United States)

    Ladenson, Alex

    1970-01-01

    Library service has become a concern of government at all levels with each having its specific role to play. This introductory statement to this issue of Library Trends" indicates the major substantive areas of library legislation. (Author/NH)

  7. Swiss legislation on dog ownership

    CERN Multimedia

    DSU Department

    2008-01-01

    The Swiss Permanent Mission in Geneva has requested CERN to inform the members of its personnel that a notice relating to Swiss legislation on dog ownership has been published on-line at the following address: http://www.eda.admin.ch/eda/en/home/topics/intorg/un/unge/gepri/pet.html This legislation is applicable to all international civil servants who own a dog. Relations with the Host States Service mailto:relations.secretariat@cern.ch http://www.cern.ch/relations/

  8. Chasing the Effects of Pre-Analytical Confounders - A Multicenter Study on CSF-AD Biomarkers

    DEFF Research Database (Denmark)

    Leitão, Maria João; Baldeiras, Inês; Herukka, Sanna-Kaisa

    2015-01-01

    play an important role in the reliable measurement of these biomarkers across laboratories. AIM: In this study, we aim to surpass the efforts from previous studies, by employing a multicenter approach to assess the impact of less studied CSF pre-analytical confounders in AD-biomarkers quantification...

  9. The legislative process in Latin America

    Directory of Open Access Journals (Sweden)

    Mercedes GARCÍA MONTERO

    2013-10-01

    Full Text Available This article addresses through comparative analysis the stages of the ordinary legislative process in eighteen Latin American countries. Through a study of the national Constitutions and internal regulations, it aims to track for the different cases, the variety of forms of presentation, debate and approval of laws in the region.

  10. JURIDICAL ANALYSIS OF LEGISLATION RELATED TO THE CRIME OF TRADE IN HUMAN ORGANS FOR THE BENEFIT OF THE KIDNEY ORGAN TRANSPLANT (Comparative Studies Between Indonesia with Philippines

    Directory of Open Access Journals (Sweden)

    Benny Situmorang

    2016-06-01

    Full Text Available In accordance with organ transplant’s evolve especially the kidneys it is necessary to rule out specific health legislation  in dealing with transplantation  of human body’s  organs  to prevent  human  trafficking  of human  organs.  The approaches used is the approach of legislation and comparisons to provide an overview of the regulation of transplantation of human body’s organs in Indonesia, and to know the comparison with other countries that have specific rules on transplants. The result is that the regulations in Indonesia does not have rules on organ transplants from living non-related organ donation and found no legal protection againts the donor. Keywords: Organ   transplant,   kidney   transplant,   human   trafficking,   health legislation.

  11. Analytical Laboratories

    Data.gov (United States)

    Federal Laboratory Consortium — NETL’s analytical laboratories in Pittsburgh, PA, and Albany, OR, give researchers access to the equipment they need to thoroughly study the properties of materials...

  12. Analytical study of two-phase-flow heat exchangers for OTEC Systems

    Energy Technology Data Exchange (ETDEWEB)

    Olsen, H.L.; Pandolfini, P.P.

    1975-07-01

    The work began in July 1975. Prior in-house research at the Laboratory had spanned two years and had yielded a preliminary design for a low-cost OTEC plant--ship intended for operation in tropical oceans for producing ammonia or other energy-intensive products. Because the heat exchanger concept represented an extrapolation from existing experience, a comprehensive analytical study followed by an essentially full-scale experiment with the basic heat exchanger elements is needed. The analytical study reported herein is believed to meet the first requirement, and a plan for the experiment is included. (WDM)

  13. Analytical Study of High Concentration PCB Paint at the Heavy Water Components Test Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Lowry, N.J.

    1998-10-21

    This report provides results of an analytical study of high concentration PCB paint in a shutdown nuclear test reactor located at the US Department of Energy's Savannah River Site (SRS). The study was designed to obtain data relevant for an evaluation of potential hazards associated with the use of and exposure to such paints.

  14. A STUDY OF CONVERSIONS OF LAPAROSOCOPIC SURGERIES INTO OPEN SURGERIES: A ANALYTICAL STUDY

    Directory of Open Access Journals (Sweden)

    Venkata Reddy

    2015-12-01

    Full Text Available INTRODUCTION: The aim of present study is to know the Conversions in Laparoscopic surgery to Open surgery in The patients of all the surgical units in the Department of General Surgery, Government General Hospital, Rangaraya Medical College, Kakinada over a period of 2 years from July 2013 to July 2015. The Objectives of present study is to compare the Conversion Rates of Laparoscopic Surgery to Open Surgery and the factors causing Conversion to Open Surgery in our institution. PATIENTS AND METHODS The protocol is approved by institution ethics committee and written informed consent was taken from each patient. Present clinical Study is an Analytical study conducted over period of 2 years from July 2013 to July 2015 in the Department of General Surgery, Government General Hospital, Rangaraya Medical College, Kakinada, Andhra Pradesh. RESULTS Total number of 536 laparoscopic surgeries were attempted in elective operation theatres with 21 cases out of 536 cases were converted from laparoscopy to open surgery. Total conversion rate in present study is 4%. Most of conversions occurred in laparoscopic chelecystectomy 5.73% cases in comparison to laparoscopic appendectomy 2.26% and laparoscopic hernia repair with 0%. CONCLUSIONS Over all conversion rates of laparoscopic procedure into open surgery is low when compared to other international studies. Most common causes of conversion in present study is altered anatomy, adhesions and intra operative bleed. Conversion of laparoscopic surgery into open surgery resulted in decreased morbidity, complications and increase in duration of hospital stay

  15. Comparison of legislation, regulations and national health strategies for palliative care in seven European countries (Results from the Europall Research Group): a descriptive study

    NARCIS (Netherlands)

    Beek, K.; Woitha, K.; Ahmed, N.; Menten, J.; Jaspers, B.; Engels, Y.; Ahmedzai, S.H.; Vissers, K.; Hasselaar, J.

    2013-01-01

    BACKGROUND: According to EU policy, anyone in need of palliative care should be able to have access to it. It is therefore important to investigate which palliative care topics are subject to legislation and regulations in Europe and how these are implemented in (national) health care plans. This pa

  16. Analytical strategies for large imaging genetic datasets: experiences from the IMAGEN study.

    Science.gov (United States)

    Nymberg, Charlotte; Jia, Tianye; Ruggeri, Barbara; Schumann, Gunter

    2013-04-01

    Large imaging genetic studies are becoming increasingly common in psychiatric research. In order to fully explore the collected information, analytical strategies that allow comprehensive investigations of the genetic and neural underpinnings of psychiatric disorders are needed. On the basis of our experience with the IMAGEN study, this review evaluates univariate and multivariate analytical strategies for exploring large imaging genetic datasets, with particular focus on reinforcement mechanisms in adolescents. Heritability estimates of functional and structural MRI endophenotypes are presented along with analytical strategies, ranging from those used in univariate candidate gene studies to genome-wide association studies. Finally, data reduction strategies are discussed at both the genotype level, in the form of expression SNPs and pathway analyses, and the phenotype level, as network analyses of neuroimaging data. Overall, imaging genetic studies have the potential to significantly contribute to our understanding of neurophysiological processes underlying human behavior. The analytical strategies presented here may aid in the comprehensive investigation of reinforcement and other neurobehavioral phenotypes. © 2013 New York Academy of Sciences.

  17. Analytical study of properties of holographic superconductors with exponential nonlinear electrodynamics

    CERN Document Server

    Sheykhi, A

    2016-01-01

    Based on the Sturm-Liouville (SL) eigenvalue problem, we analytically study several properties of holographic $s$-wave superconductors with exponential nonlinear electrodynamics in the background of Schwarzschild anti-de Sitter (AdS) black holes. We assume the probe limit in which the scalar and gauge fields do not back react on the background metric. We show that for this system, one can still obtain an analytical relation between the critical temperature and the charge density. Interestingly enough, we find that logarithmic nonlinear electrodynamics decreases the critical temperature, $T_c$, of the holographic superconductors compared to the linear Maxwell field. This implies that the nonlinear electrodynamics make the condensation harder. The analytical results obtained in this paper are in good agreement with the existing numerical results. We also compute the critical exponent near the critical temperature and find out that it is still $1/2$ which seems to be an universal value in mean field theory.

  18. Analytical and numerical studies on the nonlinear dynamic response of orthotropic membranes under impact load

    Science.gov (United States)

    Liu, Changjiang; Zheng, Zhoulian; Yang, Xiaoyan

    2016-12-01

    Orthotropic membrane components and structures are widely used in building structures, instruments and meters, electronic engineering, space and aeronautics, etc., because of their light weights. However, the same lightweight combined with low stiffness make membranes prone to vibration under dynamic loads, and in some cases the vibration may lead to structural failure. Herein, the undamped nonlinear vibration response of pretension rectangular orthotropic membrane structures subjected to impact loading is studied by analytical and numerical methods. The analytical solution is obtained by solving the governing equations by the Bubnov-Galerkin method and the Lindstedt-Poincaré perturbation method. Numerical analysis has also been carried out based on the same theoretical model. The analytical and numerical results have been compared and analyzed, and the influence of various model parameters on membrane vibration discussed. The results obtained herein provide some theoretical basis for the vibration control and dynamic design of orthotropic membrane components and structures.

  19. Study of Injection Molding Warpage Using Analytic Hierarchy Process and Taguchi Method

    Directory of Open Access Journals (Sweden)

    Dyi-Cheng Chen

    2016-10-01

    Full Text Available This study integrated Analytic Hierarchy Process and Taguchi method to investigate into injection molding warpage. The warpage important factor will be elected by Analytic Hierarchy Process (AHP, the AHP hierarchy analysis factor from documents collected and aggregate out data, then through the expert questionnaire delete low weight factor. Finally, we used Taguchi quality engineering method to decide injection molding optimized combination factors. Furthermore, the paper used injection pressure, holding pressure, holding time, mold temperature to analyze four factors, three levels Taguchi design data. Moreover, the paper discussed the reaction of each factor on the S / N ratio and analysis of variance to obtain the best combination of minimal warpage.

  20. Setting analytical performance specifications based on outcome studies - is it possible?

    Science.gov (United States)

    Horvath, Andrea Rita; Bossuyt, Patrick M M; Sandberg, Sverre; John, Andrew St; Monaghan, Phillip J; Verhagen-Kamerbeek, Wilma D J; Lennartz, Lieselotte; Cobbaert, Christa M; Ebert, Christoph; Lord, Sarah J

    2015-05-01

    The 1st Strategic Conference of the European Federation of Clinical Chemistry and Laboratory Medicine proposed a simplified hierarchy for setting analytical performance specifications (APS). The top two levels of the 1999 Stockholm hierarchy, i.e., evaluation of the effect of analytical performance on clinical outcomes and clinical decisions have been proposed to be replaced by one outcome-based model. This model can be supported by: (1a) direct outcome studies; and (1b) indirect outcome studies investigating the impact of analytical performance of the test on clinical classifications or decisions and thereby on the probability of patient relevant clinical outcomes. This paper reviews the need for outcome-based specifications, the most relevant types of outcomes to be considered, and the challenges and limitations faced when setting outcome-based APS. The methods of Model 1a and b are discussed and examples are provided for how outcome data can be translated to APS using the linked evidence and simulation or decision analytic techniques. Outcome-based APS should primarily reflect the clinical needs of patients; should be tailored to the purpose, role and significance of the test in a well defined clinical pathway; and should be defined at a level that achieves net health benefit for patients at reasonable costs. Whilst it is acknowledged that direct evaluations are difficult and may not be possible for all measurands, all other forms of setting APS should be weighed against that standard, and regarded as approximations. Better definition of the relationship between the analytical performance of tests and health outcomes can be used to set analytical performance criteria that aim to improve the clinical and cost-effectiveness of laboratory tests.

  1. Analytical Study on Impingement Heat Transfer with Single—Phase Free—Surface Circular Liquid Jets

    Institute of Scientific and Technical Information of China (English)

    C.F.Ma; T.Masuoka; 等

    1996-01-01

    An analytical research was conducted to study heat transfer from horizontal surfaces to normally impinging circular jets under arbitrary-heat-flux conditions.The laminar thermal and hydraulic bound ary layers were divided into five regions of flow.General expressions of heat transfer coefficients were obtained in all the four regions of stagnation and wall jet zones before the hydraulic jump.

  2. Measuring Students' Writing Ability on a Computer-Analytic Developmental Scale: An Exploratory Validity Study

    Science.gov (United States)

    Burdick, Hal; Swartz, Carl W.; Stenner, A. Jackson; Fitzgerald, Jill; Burdick, Don; Hanlon, Sean T.

    2013-01-01

    The purpose of the study was to explore the validity of a novel computer-analytic developmental scale, the Writing Ability Developmental Scale. On the whole, collective results supported the validity of the scale. It was sensitive to writing ability differences across grades and sensitive to within-grade variability as compared to human-rated…

  3. Analytical and Numerical Study on the Uniformity of Temperature Difference Field in Heat Exchangers

    Institute of Scientific and Technical Information of China (English)

    Zhi-XinLi; Da-XiXiong; 等

    1995-01-01

    The relations of the uniformity factor of temperature difference field with the effctiveness of heat exchangers were studied analytically and numerically.The results for eleven kinds of heat exchangers show that the more uniform the temperature difference field,the higher the effctiveness of heat exchanger for a given Ntu and Cr.

  4. Adequacy of surface analytical tools for studying the tribology of ceramics

    Science.gov (United States)

    Sliney, H. E.

    1986-01-01

    Surface analytical tools are very beneficial in tribological studies of ceramics. Traditional methods of optical microscopy, XRD, XRF, and SEM should be combined with newer surface sensitive techniques especially AES and XPS. ISS and SIMS can also be useful in providing additional compositon details. Tunneling microscopy and electron energy loss spectroscopy are less known techniques that may also prove useful.

  5. Designing Robust Process Analytical Technology (PAT) Systems for Crystallization Processes: A Potassium Dichromate Crystallization Case Study

    DEFF Research Database (Denmark)

    Abdul Samad, Noor Asma Fazli Bin; Sin, Gürkan

    2013-01-01

    The objective of this study is to test and validate a Process Analytical Technology (PAT) system design on a potassium dichromate crystallization process in the presence of input uncertainties using uncertainty and sensitivity analysis. To this end a systematic framework for managing uncertaintie...

  6. Diagnostic and analytical study of Punic terracotta pieces excavated from the archaelogical site of Mozia (Sicily

    Directory of Open Access Journals (Sweden)

    Enrico Acquaro

    2007-07-01

    Full Text Available The study on Punic terracotta elements excavated from the archaeological site of Mozia refers to some diagnostic and analytical examinations of ceramics, with a particular interest in the clay typology. It also draws our attention on the technique involved in the production of such products, from the making to the cooking.

  7. Determining the impact of smoking point of sale legislation among youth (Display) study: a protocol for an evaluation of public health policy.

    Science.gov (United States)

    Haw, Sally; Amos, Amanda; Eadie, Douglas; Frank, John; MacDonald, Laura; MacKintosh, Anne Marie; MacGregor, Andy; Miller, Martine; Pearce, Jamie; Sharp, Clare; Stead, Martine; Tisch, Catherine; van der Sluijs, Winfried

    2014-03-14

    Tobacco advertising and product promotions have been largely banned in the UK but point of sale (POS) tobacco advertising is one of the few places where tobacco products may be legitimately advertised. POS displays have been shown to increase susceptibility to smoking, experimentation and initiation into smoking. These displays may also influence perceived prevalence of smoking and the perception that tobacco products are easily obtained and are a 'normal' product. A ban of POS tobacco advertising was introduced in Scotland in large tobacco retail outlets of over 280 m2 internal sales floor areas (mainly supermarkets) in April 2013 and will be extended to include smaller tobacco retail outlets in April 2015. However, the impact of POS bans on smoking attitudes, behaviours and prevalence has yet to be determined. This study has a multi-modal before and after design and uses mixed methods to collect data, at baseline and then with longitudinal follow-up for 4 years, in four purposively selected communities. For the purposes of the study, community is defined as the catchment areas of the secondary schools selected for study. There are four main components to the on-going study. In each of the four communities, at baseline and in follow-up years, there will be: mapping and spatial analyses of tobacco retail outlets; tobacco advertising and marketing audits of tobacco retail outlets most used by young people; cross-sectional school surveys of secondary school pupils; and focus group interviews with purposive samples of secondary school pupils. The tobacco audit is supplemented by interviews and observations conducted with a panel of tobacco retailers recruited from four matched communities. This study examines the impact of the implementation of both a partial and comprehensive ban on point of sale (POS) tobacco advertising on attitudes to smoking, brand awareness, perceived ease of access to tobacco products and youth smoking prevalence. The results will be of

  8. Determining the impact of smoking point of sale legislation among youth (Display) study: a protocol for an evaluation of public health policy

    Science.gov (United States)

    2014-01-01

    Background Tobacco advertising and product promotions have been largely banned in the UK but point of sale (POS) tobacco advertising is one of the few places where tobacco products may be legitimately advertised. POS displays have been shown to increase susceptibility to smoking, experimentation and initiation into smoking. These displays may also influence perceived prevalence of smoking and the perception that tobacco products are easily obtained and are a ‘normal’ product. A ban of POS tobacco advertising was introduced in Scotland in large tobacco retail outlets of over 280m2 internal sales floor areas (mainly supermarkets) in April 2013 and will be extended to include smaller tobacco retail outlets in April 2015. However, the impact of POS bans on smoking attitudes, behaviours and prevalence has yet to be determined. Methods/design This study has a multi-modal before and after design and uses mixed methods to collect data, at baseline and then with longitudinal follow-up for 4 years, in four purposively selected communities. For the purposes of the study, community is defined as the catchment areas of the secondary schools selected for study. There are four main components to the on-going study. In each of the four communities, at baseline and in follow-up years, there will be: mapping and spatial analyses of tobacco retail outlets; tobacco advertising and marketing audits of tobacco retail outlets most used by young people; cross-sectional school surveys of secondary school pupils; and focus group interviews with purposive samples of secondary school pupils. The tobacco audit is supplemented by interviews and observations conducted with a panel of tobacco retailers recruited from four matched communities. Discussion This study examines the impact of the implementation of both a partial and comprehensive ban on point of sale (POS) tobacco advertising on attitudes to smoking, brand awareness, perceived ease of access to tobacco products and youth smoking

  9. Impact of Wellness Legislation on Comprehensive School Health Programs

    Science.gov (United States)

    Graber, Kim C.; Woods, Amelia Mays; O'Connor, Jamie A.

    2012-01-01

    In 2004, Congress passed the Child Nutrition and WIC Reauthorization Act that requires schools to implement a wellness plan. Grounded in Ecological Systems Theory (EST) (Bronfenbrenner, 1977, 1979), the purpose of this study was to explore the impact of the legislation, discover what measures have been taken to enact the legislation, gauge how the…

  10. An analytical and hypothesis-driven approach to elasmobranch movement studies.

    Science.gov (United States)

    Papastamatiou, Y P; Lowe, C G

    2012-04-01

    The study of elasmobranch movements has increased steadily since the early 1970s. A great deal is now known about the horizontal and vertical movements of many elasmobranch species over multiple spatial and temporal scales. These studies illustrate that many species share certain behaviours such as diel shifts in habitat (both horizontal and vertical), continuous yo-yo bounce diving and in many cases, seasonal migrations. Hypothesis-driven studies explaining these behaviours or utilizing an eco-physiological predictive framework are, however, relatively rare. In this review, the descriptive and hypothesis-driven studies of elasmobranch movements are discussed, in addition to some of the analytical tools that can be used to generate or test predictions. There are many tools and analytical techniques available which are not currently being utilized for most studies of elasmobranch movements. With the constant improvement in technology and statistical techniques, the development of hypothesis-driven studies of elasmobranch movements should continue to increase.

  11. 我国开征环境税之立法研究%The legislative study on establishment of environmental taxex in China

    Institute of Scientific and Technical Information of China (English)

    李涛

    2011-01-01

    The establishment of environmental taxex, to control the deterioration of the global environment by the coercive measures of tax, will be good to protect the environment.This paper analyses the legislation of environmental tax of our country, learns the advanced experience of developed countries, and puts forward the legislative proposals of the establishment of environmental taxex of our country.%开征环境税,以税收强制手段控制全球环境的恶化,有利于保护环境.我国并没有建立专门的环境税.本文通过对我国开征环境税的立法现状分析,借鉴发达国家的先进经验,提出我国开征环境税之立法建议.

  12. 逆向物流的立法现状及问题研究%Study on Current Status and Issues of Reverse Logistics Legislation

    Institute of Scientific and Technical Information of China (English)

    刘旭

    2014-01-01

    In this paper, we introduced the foundation and current status of the reverse logistics legislation in China, analyzed the problems existing therein, and at the end, from the aspects of legal subject, legal entity and legal content, proposed the countermeasures to improve the legislative structure of the reverse logistics legal system of China.%阐述了我国逆向物流立法的现实基础和立法现状,分析了我国逆向物流立法存在的问题,并从法律主体、法律客体、法律内容三方面提出了完善我国逆向物流立法的对策建议。

  13. Comparative Study of Commonweal Fundraising Legislation of the Mainland and Taiwan%海峡两岸公益募捐立法比较研究

    Institute of Scientific and Technical Information of China (English)

    李永军

    2012-01-01

    海峡两岸公益募捐立法在历史发展背景上有诸多相同或相似之处,使大陆借鉴台湾公益募捐立法成为可能。在台湾公益募捐立法体系中最重要的当数"公益劝募条例",全面而又不失重点,兼具劝募主体明确,资金使用公开、透明等优点。大陆公益募捐立法成就与问题同在。借鉴台湾经验,大陆今后应统一公益募捐立法,完善公益募捐法律体系,加强公益募捐主体自律。%There are a lot of common characteristics between the mainland and Taiwan in the historical background.So is it possible to learn Taiwan commonweal fundraising legislation for the mainland.'Public procurement regulation' is the most important one in the commonweal fundraising legislation system.This act is in an all-round way while emphasizing key points,and it is clear to recognize the subject,and it's open and transparent to everyone for funds.There are some problems with great achievement the mainland commonweal fundraising legislation.To learn Taiwan,the mainland should build the uniform legislation,improve commonweal fundraising legal system,enhance self-discipline of the commonweal fundraising subject.

  14. 40 CFR 1508.17 - Legislation.

    Science.gov (United States)

    2010-07-01

    ... 40 Protection of Environment 32 2010-07-01 2010-07-01 false Legislation. 1508.17 Section 1508.17 Protection of Environment COUNCIL ON ENVIRONMENTAL QUALITY TERMINOLOGY AND INDEX § 1508.17 Legislation. Legislation includes a bill or legislative proposal to Congress developed by or with the...

  15. Behavioural and psychological responses of lower educated smokers to the smoke-free legislation in Dutch hospitality venues: a qualitative study.

    Science.gov (United States)

    Van der Heiden, Sander; Gebhardt, Winifred A; Willemsen, Marc C; Nagelhout, Gera E; Dijkstra, Arie

    2013-01-01

    In 2008, smoke-free legislation was implemented in hospitality venues (HV) in the Netherlands. We investigated how continuing smokers with a lower educational background respond behaviourally and psychologically to the legislation and the norm it communicates. In 2010, 18 lower-educated daily smokers were interviewed. Transcripts were analysed with MAXQDA software. Theories of self-awareness and social in- and exclusion were applied to interpret findings. Smokers had become more self-aware and the experience of a more negative norm surrounding smoking had made them reevaluate their smoking. Smokers had also become more self-aware of their own smoking, both in HV and in general. Feelings of increased social exclusion were reported. Participants dealt with the increased awareness and feelings of social exclusion in different ways depending on their evaluation of the smoking ban, changes in attitude towards own smoking, changes in HV patronage and changes in smoking behaviour. Theories of self-awareness and social in- and exclusion were useful in understanding consequences of a HV smoking ban on continuing smokers. Four different types of responses were identified, i.e. (1) actively trying to quit, (2) socially conscious smoking, (3) feeling victimised and (4) rejecting the norm. Implications for future smoke-free legislation are discussed.

  16. A Century of Environmental Legislation

    DEFF Research Database (Denmark)

    Kaiser, Brooks; Cain, Louis P.

    2016-01-01

    At the beginning of the 20th century, three intertwined ambitions drove federal legislation over wildlife and biodiversity: establishment of multiple-use federal lands, the economic development of natural resources, and the maintenance of option values. We examine this federal intervention...

  17. Coping with EU environmental legislation

    DEFF Research Database (Denmark)

    Anker, Helle Tegner; de Graaf, Kars; Purdy, Ray;

    2015-01-01

    A ‘burden reducing’ agenda has spurred an increased interest in how EU environmental legislation is transposed into national legislation—most prominently reflected in the principle of ‘no gold-plating’. Yet, an important question is to what extent transposition principles and practices may ensure...

  18. Employment protection legislation in Croatia

    National Research Council Canada - National Science Library

    Kunovac, Marina

    2014-01-01

    ... the observed period, primarily as concerns individual dismissal in the cases of regular employment contracts, while in the case of temporary employment the protection strengthened slightly. On the other hand, despite the adoption of amendments to the Labour Act (LA), Croatian labour legislation governing employment protection for regular employme...

  19. A Century of Environmental Legislation

    DEFF Research Database (Denmark)

    Cain, Louis P.; Kaiser, Brooks

    2016-01-01

    At the beginning of the 20th century, three intertwined ambitions drove federal legislation over wildlife and biodiversity: establishment of multiple-use federal lands, the economic development of natural resources, and the maintenance of option values. We examine this federal intervention in nat...

  20. The Arabic Web Sites On Library and Information Science : An Analytic Study

    Directory of Open Access Journals (Sweden)

    Mahmoud A.Sattar Khalifa

    2005-03-01

    Full Text Available Analytic study about the Arabic Web Sites On Library and Information Science, it collected 151 Arabic web site and analysis them according to: categories of the web sites, domain names, geographical distribution, languages, libraries web sites and their catalogs, geographical distribution, and types , and metadata and usage of Dublin Core standards, finally the study give the international ranking of Arabic web sites according to Alexa's ranking services.

  1. SPf66 vaccine trial in Brazil: conceptual framework study design and analytical approach

    Directory of Open Access Journals (Sweden)

    M. Urdaneta

    1996-06-01

    Full Text Available This paper describes the study population and the study design of the phase III field trial of the SPf66 vaccine in Brazil. Assessment of validity and precision principles necessary for the appropriate evaluation of the protective effect of the vaccine are discussed, as well as the results of the preliminary analyses of the gathered data. The analytical approach for the estimation of the protective effect of the vaccine is presented. This paper provides the conceptual framework for future publications.

  2. APPLICATION OF THE ANALYTICAL ELECTRON MICROSCOPE TO THE STUDY OF GRAIN BOUNDARY CHEMISTRY

    OpenAIRE

    Hall, E

    1982-01-01

    High spatial resolution X-ray spectroscopy in the analytical electron microscope (AEM) is a powerful tool for the study of changes in chemistry which occur at grain boundaries in metals and ceramics. Two major advantages are realized through the use of the AEM in these studies : the ability to obtain accurate quantitative microchemical analysis of grain boundary regions, and the capability for determining the structural and crystallographic characteristics of the boundaries on which the chemi...

  3. Studies of Micellar Electrokinetic Chromatography as an Analytical Technique in Pharmaceutical Analysis - an Industrial Perspective

    OpenAIRE

    Stubberud, Karin

    2002-01-01

    Studies have been performed to evaluate the use of micellar electrokinetic chromatography (MEKC), one mode of capillary electrophoresis (CE), as an analytical technique in industrial pharmaceutical analysis. The potential for using chemometrics for the optimisation of MEKC methods has also been studied as well as the possibilities of coupling MEKC with mass spectrometry (MS). Two methods were developed, one for the determination of ibuprofen and codeine and another for pilocarpine, together ...

  4. Noble gas encapsulation into carbon nanotubes: Predictions from analytical model and DFT studies

    Science.gov (United States)

    Balasubramani, Sree Ganesh; Singh, Devendra; Swathi, R. S.

    2014-11-01

    The energetics for the interaction of the noble gas atoms with the carbon nanotubes (CNTs) are investigated using an analytical model and density functional theory calculations. Encapsulation of the noble gas atoms, He, Ne, Ar, Kr, and Xe into CNTs of various chiralities is studied in detail using an analytical model, developed earlier by Hill and co-workers. The constrained motion of the noble gas atoms along the axes of the CNTs as well as the off-axis motion are discussed. Analyses of the forces, interaction energies, acceptance and suction energies for the encapsulation enable us to predict the optimal CNTs that can encapsulate each of the noble gas atoms. We find that CNTs of radii 2.98 - 4.20 Å (chiral indices, (5,4), (6,4), (9,1), (6,6), and (9,3)) can efficiently encapsulate the He, Ne, Ar, Kr, and Xe atoms, respectively. Endohedral adsorption of all the noble gas atoms is preferred over exohedral adsorption on various CNTs. The results obtained using the analytical model are subsequently compared with the calculations performed with the dispersion-including density functional theory at the M06 - 2X level using a triple-zeta basis set and good qualitative agreement is found. The analytical model is however found to be computationally cheap as the equations can be numerically programmed and the results obtained in comparatively very less time.

  5. Strengthening reinforced concrete beams using prestressed glass fiber-reinforced polymer-Part Ⅱ: Analytical study

    Institute of Scientific and Technical Information of China (English)

    HUANG Yue-lin; HUNG Chien-hsing; YEN Tsong; WU Jong-hwei; LIN Yiching

    2005-01-01

    Strengthening reinforced concrete (R. C.) beams using prestressed glass fiber-reinforced polymer (PGFRP) was studied experimentally as described in Part Ⅰ of this paper (Huang et al., 2005). In that paper, R. C. beams, R. C. beams with GFRP(glass fiber-reinforced polymer) sheets, and R. C. beams with PGFRP sheets were tested in both under-strengthened and over-strengthened cases. The test results showed that the load-carrying capacities (ultimate loads) of the beams with GFRP sheets were greater than those of the beams without polymer sheets. The load-carrying capacities of beams with PGFRP sheets were greater than those of beams with GFRP sheets. The objective of this work is to develop an analytical method to compute all of these load-carrying capacities. This analytical method is independent of the experiments and based only on the traditional R. C.and P. C. (prestressed concrete) theory. The analytical results accorded with the test results. It is suggested that this analytical method be used for analyzing and designing R. C. beams strengthened using GFRP or PGFRP sheets.

  6. Radon legislation and national guidelines

    Energy Technology Data Exchange (ETDEWEB)

    Aakerblom, G

    1999-07-01

    The International Commission on Radiological Protection (ICRP) and The Council of the European Union have recommended the Member States to take action against radon in homes and at workplaces. Within the EU project European Research into Radon in Construction Concerted Action, ERRICCA, the Topic Group on Legal and Building Code Impact was designated to study the current radon legislation and give advice regarding future enactment of laws and recommendations. On behalf of the Group, a questionnaire on radon legislation was sent out to nearly all European states and a selection of non-European states. Questions were asked regarding reference levels for dwellings, workplaces and drinking water, and about regulations or recommendations for building materials and city planning. All 15 EU Member States, 17 non-EU European countries and 10 non-European countries responded to the questionnaire. Their answers are considered current as of the end of 1998. Most European States and many non-European countries have recommended reference levels for dwellings and workplaces, and some have guidelines for measures against radon incorporated in their building codes and guidelines for construction techniques. However, only a few countries have enforced reference levels or regulations for planning and construction. The reference levels for indoor radon concentration in existing and new dwellings or workplaces are within the range 150-1000 Bq/m{sup 3}. Sweden is the only country (Out of 15 EU member states) which has enforced limits for existing dwellings. Sweden and the UK have both enforced levels for new dwellings. 7 non-European countries (Out of 17 responding countries) have enforced levels for existing dwellings and 9 have them for new dwellings. At the end of 1998, only Finland, Sweden, the Czech Republic, Romania, Russia and the Slovak Republic had limits for radon in water, although 8 countries were planning to introduce such limits. The present limits are within the range for

  7. Analytical Study of High Pitch Delay Resolution Technique for Tonal Speech Coding

    Directory of Open Access Journals (Sweden)

    Suphattharachai Chomphan

    2012-01-01

    Full Text Available Problem statement: In tonal-language speech, since tone plays important role not only on the naturalness and also the intelligibility of the speech, it must be treated appropriately in a speech coder algorithm. Approach: This study proposes an analytical study of the technique of High Pitch Delay Resolutions (HPDR applied to the adaptive codebook of core coder of Multi-Pulse based Code Excited Linear Predictive (MP-CELP coder. Results: The experimental results show that the speech quality of the MP-CELP speech coder with HPDR technique is improved above the speech quality of the conventional coder. An optimum resolution of pitch delay is also presented. Conclusion: From the analytical study, it has been found that the proposed technique can improve the speech coding quality.

  8. Legislation. Legislation and Regulations Affecting Libraries in 2001; Legislation and Regulations Affecting Publishing in 2001.

    Science.gov (United States)

    Sheketoff, Emily; Costabile, Mary R.; Adler, Allan

    2002-01-01

    These two reports discuss federal legislation and regulations that affect libraries and the publishing industry. Topics include funding for federal library and related programs; ESEA (Elementary and Secondary Education Act) reauthorization; E-rate; the USA Patriot Act and other actions after the September terrorist attacks; intellectual property;…

  9. Legislation: Legislation and Regulations Affecting Libraries in 2002; Legislation and Regulations Affecting Publishing in 2002.

    Science.gov (United States)

    Sheketoff, Emily; Costabile, Mary R.; Adler, Allan

    2003-01-01

    Reviews legislation and regulations affecting libraries and the publishing industry, including the Museum and Library Services Act; Office of Educational Research and Improvement (OERI); copyright; access to electronic government information; telecommunications and technology; electronic surveillance and privacy, including the USA Patriot Act;…

  10. Analytical and Numerical Study of Gauss-Bonnet Holographic Superconductors with Power-Maxwell Field

    CERN Document Server

    Sheykhi, A; Montakhab, Afshin

    2016-01-01

    We provide an analytical as well as a numerical study of the holographic $s$-wave superconductors in Gauss-Bonnet gravity with Power-Maxwell electrodynamics. We limit our study to the case where scalar and gauge fields do not have n effect on the background metric. We use a variational method, based on Sturm-Liouville eigenvalue problem for our analytical study, as well as a numerical shoting method in order to compare with our analytical results. Interestingly enough, we observe that unlike Born-Infeld-like nonlinear electrodynamics which decrease the critical temperature compared to the linear Maxwell field, the Power-Maxwell electrodynamics is able to increase the critical temperature of the holographic superconductors in the sublinear regime. We find that requiring the finite value for the gauge field on the asymptotic boundary $r\\rightarrow \\infty$, restricts the power parameter, $q$, of the Power-Maxwell field to be in the range $1/2study indicates that it is quite possible to...

  11. Experimental and analytical study of high velocity impact on Kevlar/Epoxy composite plates

    Science.gov (United States)

    Sikarwar, Rahul; Velmurugan, Raman; Madhu, Velmuri

    2012-12-01

    In the present study, impact behavior of Kevlar/Epoxy composite plates has been carried out experimentally by considering different thicknesses and lay-up sequences and compared with analytical results. The effect of thickness, lay-up sequence on energy absorbing capacity has been studied for high velocity impact. Four lay-up sequences and four thickness values have been considered. Initial velocities and residual velocities are measured experimentally to calculate the energy absorbing capacity of laminates. Residual velocity of projectile and energy absorbed by laminates are calculated analytically. The results obtained from analytical study are found to be in good agreement with experimental results. It is observed from the study that 0/90 lay-up sequence is most effective for impact resistance. Delamination area is maximum on the back side of the plate for all thickness values and lay-up sequences. The delamination area on the back is maximum for 0/90/45/-45 laminates compared to other lay-up sequences.

  12. Analytic study for physical protection system (PPS) in nuclear power plants (NPPs)

    Energy Technology Data Exchange (ETDEWEB)

    Woo, Tae Ho, E-mail: thw@snu.ac.kr

    2013-12-15

    Highlights: • The physical protection system (PPS) is investigated. • General NPPs are modeled in the study. • Possible terror cases, likelihood, and consequence are studied. • PPS is constructed by analytical methods. - Abstract: The nuclear safeguard is analyzed in the aspect of the physical protection system (PPS) in nuclear power plants (NPPs). The PPS is reviewed and its related terror scenarios are investigated. The PPS is developed using analytical methods. In the terror scenarios, there are 8 possible cases for the terror attacks to the NPPs. Then, the likelihood of terror is classified by the general terror incidents. The consequence of terror is classified by Design Basis Threat (DBT) of the International Atomic Energy Agency (IAEA) scale. The physical protection method is suggested by defense-in-depth constraints and severe accident countermeasures. Finally, the advanced PPS is constructed, which could be used for the preparation for the possible terror attacks in the NPPs.

  13. A Study on American National Park Legislative System%美国国家公园立法体系研究

    Institute of Scientific and Technical Information of China (English)

    杨建美

    2011-01-01

    美国是世界上第一个建立国家公园的国家,也是国家公园立法体系最为完善的国家之一。对美国国家公园立法体系形成的三个重要时期作了总结,并对国家公园立法理念和思想变化作了深入讨论,研究认为美国国家公园立法体现了保护思想从简单的自然景观单体保护到生态系统和文化系统整体保护演进的过程,其立法体系的垂直和多层次设计促使国家公园的管理相对独立于地方利益纽带,使其能够忠实地服务于自身的管理目标。%Being the first country in the world that has established national park system,the United States has experienced three characteristic phases in the development of its legislative system of national park that were starting,developing and mature,during which the scope of legislation is enlarged from nature to cultural heritage conservation,and the vision is moved forward from independent unit to ecological system conservation.The most typical character of American national park legislation is that a large number of laws were issued by congress level,which prevents the benefit-oriented intervention of local government.

  14. A Comparative Study of Chinese and Foreign Criminal Legislation of Environmental Crime%中外环境犯罪刑事立法的比较研究

    Institute of Scientific and Technical Information of China (English)

    王也

    2014-01-01

    Provisions of environmental crime in Chinese criminal law, which established from "Crime against Environmental Resources"in 1997 to Criminal Law Amendment (Eight) in 2011 which changed"The Crime of Major Environmental Pollution Accident"to"The Environmental Pollution Crime". Chinese environmental criminal legislation continues to be amended and supplemented. But the envi-ronmental criminal legislation in China does not play the deterrent effect and still lack of ideas and legislation. Therefore, to improve our environmental criminal law timely has become a urgent problem to build environment friendly and harmonious society .%我国刑法关于环境犯罪的规定,从1997年刑法设立的“破坏环境资源保护罪”专节到2011年《刑法修正案(八)》将“重大环境污染事故罪”改为“污染环境罪”,我国的环境刑事立法在不断的进行修正和补充,但是我国的环境刑事立法却没有发挥应有的威慑作用,仍然存在着理念和立法上的不足。因此,及时完善我国的环境刑法已经成为构建环境友好型和谐社会所必须面对和解决的问题。

  15. MULTI-ANALYTICAL APPROACH FOR THE STUDY OF GLAZED POTTERY FROM AL-FUSTAT, EGYPT

    OpenAIRE

    Sadek, H

    2016-01-01

    This work presents the archaeometric characterizations of glazed pottery from Al-Fustat by using multi- analytical techniques. Pot sherds investigated by colorimetry, Polarized Light Microscope OLM, XRD and SEM. In the studied samples, quartz added to the pottery body paste. In addition, additive materials commonly added to the raw materials such feldspars, mica, amphibole, pyroxene and calcite. Mineralogical and morphological analysis of the matrix indicate that the firing temperature carrie...

  16. An analytical study of the effects of vaporization of twodimensional laminar droplets on a triple flame

    OpenAIRE

    Bidabadi Mehdi; Barari Ghazal; Azimi Milad

    2011-01-01

    The structure of triple flame propagation in combustion systems, containing uniformly distributed volatile fuel droplet was analyzed. The analysis was established for a one-step irreversible reaction with an asymptotic limit, where the value of the Zeldovich Number is large. Here, using unit Lewis number, the analytical results for the triple flame temperature were obtained considering two sections. In the first section, a non-vaporizing fuel stream was studied and in the second section...

  17. An analytical and numerical study of chaotic dynamics in a simple bouncing ball model

    Institute of Scientific and Technical Information of China (English)

    Andrzej Okninski; Boguslaw Radziszewski

    2011-01-01

    Dynamics of a ball moving in gravitational field and colliding with a moving table is studied in this paper.The motion of the limiter is assumed as periodic with piecewise constant velocity-it is assumed that the table moves up with a constant velocity and then moves down with another constant velocity. The Poincaré map, describing evolution from an impact to the next impact, is derived and scenarios of transition to chaotic dynamics are investigated analytically and numerically.

  18. Biological and Analytical Variation of the Human Sweating Response: Implications for Study Design and Analysis

    Science.gov (United States)

    2012-01-01

    information http://www.the-aps.org/publications/ajpregu This infomation is current as of January 24, 2012. ISSN: 0363-6119, ESSN: 1522-1490. Visit our...sweating rate; reproducibility; exercise-heat stress; sweating onset A FUNDAMENTAL CHALLENGE IN the study of human integrative physiology is in the...analysis software. Analytical variation. To determine the ventilated sweat capsule measurement system CVa, measurements of SR were made in an

  19. Analytical Electron Microscopic Study of Mineral Deposits in a Case of Calcionsis Universalis

    OpenAIRE

    KAWAKAMI, TOSHIYUKI; NAKAMURA, CHIHITO; Hasegawa, Hiromasa; EDA, SHIGEO

    1988-01-01

    Calcinosis universalis with dermatomyositis occurred in a 58-year-old woman. Tissues removed from the patient's sublingual region were studied mainly by analytical electron microscopic methods. According to an elemental analysis using a wavelength dispersive X-ray spectroscope, most of the mineral deposits contained the elements sodium, phosphorus, calcium, rhenium, and some deposits also contained sulphur and magnesium. The elements sodium, sulphur, chlorine, and calcium were found in the st...

  20. An Observational and Analytical Study of Marginal Ice Zone Atmospheric Jets

    Science.gov (United States)

    2016-12-01

    creates more waves in the arctic. These waves prevent flat ice sheets such as nilas from forming and instead cause the formation of pancake ice . Pancake...warmer water to the surface and further contribute to sea ice melt . These conclusions are important to an organization like the US Navy who looks to...AND ANALYTICAL STUDY OF MARGINAL ICE ZONE ATMOSPHERIC JETS by David M. Price December 2016 Thesis Advisor: Peter Guest Second Reader

  1. Dissolution Threats and Legislative Bargaining

    DEFF Research Database (Denmark)

    Becher, Michael; Christiansen, Flemming Juul

    2015-01-01

    Chief executives in many parliamentary democracies have the power to dissolve the legislature. Despite a well-developed literature on the endogenous timing of parliamentary elections, political scientists know remarkably little about the strategic use of dissolution power to influence policymaking....... To address this gap, we propose and empirically evaluate a theoretical model of legislative bargaining in the shadow of executive dissolution power. The model implies that the chief executive's public support and legislative strength, as well as the time until the next constitutionally mandated election......, are important determinants of the use and effectiveness of dissolution threats in policymaking. Analyzing an original time-series data set from a multiparty parliamentary democracy, we find evidence in line with key empirical implications of the model....

  2. Analytical bunch compression studies for a linac-based electron accelerator

    Directory of Open Access Journals (Sweden)

    M. Schreck

    2015-10-01

    Full Text Available The current paper deals with analytical bunch compression studies for FLUTE whose results are compared to simulations. FLUTE is a linac-based electron accelerator with a design energy of approximately 40 MeV currently being constructed at the Karlsruhe Institute of Technology. One of the goals of FLUTE is to generate electron bunches with their length lying in the femtosecond regime. In the first phase this will be accomplished using a magnetic bunch compressor. This compressor forms the subject of the studies presented. The paper is divided into two parts. The first part deals with pure geometric investigations of the bunch compressor where space charge effects and the backreaction of bunches with coherent synchrotron radiation are neglected. The second part is dedicated to the treatment of space charge effects. The upshot is that the analytical results in the two parts agree quite well with what is obtained from simulations. This paper shall form the basis for future analytical studies of the FLUTE bunch compressor and of bunch compression, in general.

  3. Damage states in laminated composite three-point bend specimens: An experimental-analytical correlation study

    Science.gov (United States)

    Starbuck, J. Michael; Guerdal, Zafer; Pindera, Marek-Jerzy; Poe, Clarence C.

    1990-01-01

    Damage states in laminated composites were studied by considering the model problem of a laminated beam subjected to three-point bending. A combination of experimental and theoretical research techniques was used to correlate the experimental results with the analytical stress distributions. The analytical solution procedure was based on the stress formulation approach of the mathematical theory of elasticity. The solution procedure is capable of calculating the ply-level stresses and beam displacements for any laminated beam of finite length using the generalized plane deformation or plane stress state assumption. Prior to conducting the experimental phase, the results from preliminary analyses were examined. Significant effects in the ply-level stress distributions were seen depending on the fiber orientation, aspect ratio, and whether or not a grouped or interspersed stacking sequence was used. The experimental investigation was conducted to determine the different damage modes in laminated three-point bend specimens. The test matrix consisted of three-point bend specimens of 0 deg unidirectional, cross-ply, and quasi-isotropic stacking sequences. The dependence of the damage initiation loads and ultimate failure loads were studied, and their relation to damage susceptibility and damage tolerance of the mean configuration was discussed. Damage modes were identified by visual inspection of the damaged specimens using an optical microscope. The four fundamental damage mechanisms identified were delaminations, matrix cracking, fiber breakage, and crushing. The correlation study between the experimental results and the analytical results were performed for the midspan deflection, indentation, damage modes, and damage susceptibility.

  4. Legislators Urge Carbon Emissions Cuts

    Science.gov (United States)

    Kumar, Mohi

    2007-02-01

    Legislators from the world's largest carbon dioxide (CO2) emitting countries met on 14-15 February in Washington, D.C., to discuss the future of the global climate and strategies to mitigate temperature increases resulting from global warming. The world faces a ``double challenge-how to reduce damaging carbon emissions while still meeting the energy demand that the world's poor need to escape poverty,'' said World Bank President Paul Wolfowitz during a keynote talk.

  5. Prevalence of helmet use by users of bicycles, push scooters, inline skates and skateboards in Toronto and the surrounding area in the absence of comprehensive legislation: an observational study.

    Science.gov (United States)

    Page, Jessica L; Macpherson, Alison K; Middaugh-Bonney, Tara; Tator, Charles H

    2012-04-01

    Legislation in the province of Ontario, Canada, mandates users under the age of 18 to wear a helmet when they ride a bicycle, and legislation has been shown to significantly increase rates of bicycle helmet use. Legislation does not exist in Ontario for older bicyclists or for users of other non-motorised modes of transportation, and there are no current data available regarding rates of helmet use in these categories. This study was designed to determine the prevalence of helmet use among users of bicycles, skateboards, push scooters and inline skates in Toronto, Ontario, and the surrounding area. Further analysis was performed to examine factors associated with helmet use. We performed a cross-sectional, observational study. Three trained, stationary observers captured 6038 users of bicycles (5783), skateboards (77), inline skates (165) and push scooters (13) in the summer of 2009. Observations were separated into three time periods capturing commuters, midday users and recreational users. A general linear model was used to assess the factors associated with helmet use among bicyclists. Helmets were worn by 48.9% of all users observed and 50.0% of all bicyclists. Among bicyclists, females were more likely to wear helmets than males (prevalence ratio 1.27, 95% CI 1.17 to 1.36), while children were significantly more likely to wear helmets than adults (prevalence ratio 1.17, 95% CI 1.37 to 2.15). Significant behavioural variation was observed among users during the three observation periods (pstrategies to increase helmet use, such as the introduction of legislation encompassing all ages and all equipment, is required.

  6. 医疗救助立法的必要性和可行性研究%Study on the Necessity and Feasibility of Medical Relief Legislation

    Institute of Scientific and Technical Information of China (English)

    王海容; 程文玉

    2015-01-01

    Medical relief legislation is the need of medical treatment specification operation, the need of reg-ulating the social relations of medical treatment, the need of realizing the rule of law and building a harmonious society. Theoretically, medical treatment, as a social security system, is safeguarded and promoted by law, which is the international practice; practically, medical treatment has entered the stage of full implementation, which pro-vides the opportunity and condition for its legislation, which is feasible.%医疗救助立法是医疗救助规范运行的需要,是调节医疗救助各社会关系的需要,是实现依法治国、构建和谐社会的需要。从理论上看,医疗救助作为一项社会保障制度,靠立法强制予以保障和推行是国际惯例;从实践上看,医疗救助已进入全面实施阶段,为立法提供了时机和条件,其立法具有可行性。

  7. 美丽中国理念下我国湿地立法研究%Study on Wetland legislation under the Concept of Beautiful China

    Institute of Scientific and Technical Information of China (English)

    秦玉峰; 郭洋波

    2016-01-01

    湿地在构建美丽中国中具有重要的经济、生态、美学、科研和教育价值,而我国湿地现状不容乐观,迫切需要立法保护。本文在对我国湿地立法状况和国外部分国家湿地保护状况进行研究的基础上,提出了对我国湿地立法的相关建议。%Wetland is important in building a beautiful China economy, ecology, aesthetics, scientific research and education value, and the present situation of wetland in China is not optimistic, urgent need legal protection�Based on wetland legislation in our country and foreign national wetland conservation conditions the paper puts forward the relevant policy recommendations to the wetland legislation in our country.

  8. Analytical study of holographic superconductor in Born–Infeld electrodynamics with backreaction

    Directory of Open Access Journals (Sweden)

    A. Sheykhi

    2016-03-01

    Full Text Available We extend the analytical studies on the properties of s-wave holographic superconductors in the presence of Born–Infeld nonlinear electrodynamics by taking the backreaction into account. We find that even in the case of nonlinear electrodynamics, one can still employ the analytical method when the backreaction is turned on. In our calculations, we use the variational method which is based on the Sturm–Liouville eigenvalue problem. For this system, we obtain the relation between the critical temperature and the charge density. We find that both backreaction and Born–Infeld parameters decrease the critical temperature of the superconductor and make the condensation harder. Finally, we compute the critical exponent associated with the condensation near the critical temperature and find that it equals 1/2 which is the universal value in the mean field theory.

  9. Synthesis and ultraviolet visible spectroscopy studies of chitosan capped gold nanoparticles and their reactions with analytes.

    Science.gov (United States)

    Mohd Sultan, Norfazila; Johan, Mohd Rafie

    2014-01-01

    Gold nanoparticles (AuNPs) had been synthesized with various molarities and weights of reducing agent, monosodium glutamate (MSG), and stabilizer chitosan, respectively. The significance of chitosan as stabilizer was distinguished through transmission electron microscopy (TEM) images and UV-Vis absorption spectra in which the interparticles distance increases whilst retaining the surface plasmon resonance (SPR) characteristics peak. The most stable AuNPs occurred for composition with the lowest (1 g) weight of chitosan. AuNPs capped with chitosan size stayed small after 1 month aging compared to bare AuNPs. The ability of chitosan capped AuNPs to uptake analyte was studied by employing amorphous carbon nanotubes (α-CNT), copper oxide (Cu2O), and zinc sulphate (ZnSO4) as the target material. The absorption spectra showed dramatic intensity increased and red shifted once the analyte was added to the chitosan capped AuNPs.

  10. Analytical study of holographic superconductor in Born-Infeld electrodynamics with backreaction

    CERN Document Server

    Sheykhi, A

    2016-01-01

    We extend the analytical studies on the properties of $s$-wave holographic superconductors in the presence of Born-Infeld nonlinear electrodynamics by taking the backreaction into account. We find that even in the case of nonlinear electrodynamics, one can still employ the analytical method when the backreaction is turned on. In our calculations, we use the variational method which is based on the Sturm-Liouville eigenvalue problem. For this system, we obtain the relation between the critical temperature and the charge density. We find that both backreaction and Born-Infeld parameters decrease the critical temperature of the superconductor and make the condensation harder. Finally, we compute the critical exponent associated with the condensation near the critical temperature and find that it equals $1/2$ which is the universal value in the mean field theory.

  11. Synthesis and Ultraviolet Visible Spectroscopy Studies of Chitosan Capped Gold Nanoparticles and Their Reactions with Analytes

    Directory of Open Access Journals (Sweden)

    Norfazila Mohd Sultan

    2014-01-01

    Full Text Available Gold nanoparticles (AuNPs had been synthesized with various molarities and weights of reducing agent, monosodium glutamate (MSG, and stabilizer chitosan, respectively. The significance of chitosan as stabilizer was distinguished through transmission electron microscopy (TEM images and UV-Vis absorption spectra in which the interparticles distance increases whilst retaining the surface plasmon resonance (SPR characteristics peak. The most stable AuNPs occurred for composition with the lowest (1 g weight of chitosan. AuNPs capped with chitosan size stayed small after 1 month aging compared to bare AuNPs. The ability of chitosan capped AuNPs to uptake analyte was studied by employing amorphous carbon nanotubes (α-CNT, copper oxide (Cu2O, and zinc sulphate (ZnSO4 as the target material. The absorption spectra showed dramatic intensity increased and red shifted once the analyte was added to the chitosan capped AuNPs.

  12. Molecular motion in cell membranes: analytic study of fence-hindered random walks

    CERN Document Server

    Kenkre, V M; Kalay, Z

    2008-01-01

    A theoretical calculation is presented to describe the confined motion of transmembrane molecules in cell membranes. The study is analytic, based on Master equations for the probability of the molecules moving as random walkers, and leads to explicit usable solutions including expressions for the molecular mean square displacement and effective diffusion constants. One outcome is a detailed understanding of the dependence of the time variation of the mean square displacement on the initial placement of the molecule within the confined region. How to use the calculations is illustrated by extracting (confinement) compartment sizes from experimentally reported published observations from single particle tracking experiments on the diffusion of gold-tagged G-protein coupled mu-opioid receptors in the normal rat kidney cell membrane, and by further comparing the analytical results to observations on the diffusion of phospholipids, also in normal rat kidney cells.

  13. Integrative Spatial Data Analytics for Public Health Studies of New York State.

    Science.gov (United States)

    Chen, Xin; Wang, Fusheng

    2016-01-01

    Increased accessibility of health data made available by the government provides unique opportunity for spatial analytics with much higher resolution to discover patterns of diseases, and their correlation with spatial impact indicators. This paper demonstrated our vision of integrative spatial analytics for public health by linking the New York Cancer Mapping Dataset with datasets containing potential spatial impact indicators. We performed spatial based discovery of disease patterns and variations across New York State, and identify potential correlations between diseases and demographic, socio-economic and environmental indicators. Our methods were validated by three correlation studies: the correlation between stomach cancer and Asian race, the correlation between breast cancer and high education population, and the correlation between lung cancer and air toxics. Our work will allow public health researchers, government officials or other practitioners to adequately identify, analyze, and monitor health problems at the community or neighborhood level for New York State.

  14. A semi-analytical study of positive corona discharge in wire-plane electrode configuration

    Science.gov (United States)

    Yanallah, K.; Pontiga, F.; Chen, J. H.

    2013-08-01

    Wire-to-plane positive corona discharge in air has been studied using an analytical model of two species (electrons and positive ions). The spatial distributions of electric field and charged species are obtained by integrating Gauss's law and the continuity equations of species along the Laplacian field lines. The experimental values of corona current intensity and applied voltage, together with Warburg's law, have been used to formulate the boundary condition for the electron density on the corona wire. To test the accuracy of the model, the approximate electric field distribution has been compared with the exact numerical solution obtained from a finite element analysis. A parametrical study of wire-to-plane corona discharge has then been undertaken using the approximate semi-analytical solutions. Thus, the spatial distributions of electric field and charged particles have been computed for different values of the gas pressure, wire radius and electrode separation. Also, the two dimensional distribution of ozone density has been obtained using a simplified plasma chemistry model. The approximate semi-analytical solutions can be evaluated in a negligible computational time, yet provide precise estimates of corona discharge variables.

  15. Study on the behaviour of rubber aggregates concrete beams using analytical approach

    Directory of Open Access Journals (Sweden)

    Priyanka Asutkar

    2017-02-01

    Full Text Available Concrete is one the most extensively used construction material all over the world. Many scientists and researchers are in quest for developing alternate construction material that are environment friendly and contribute towards sustainable development. Huge amount of rubber tyres waste is being generated day by day which creates the disposal problem and has many environmental issues. As this scrap rubber waste is an elastic material having less specific gravity, energy absorbent material can be used as a replacement material for obtaining lightweight concrete. In present study an attempt is made to partially replace the rubber aggregates by coarse aggregates in concrete and to study its impact on properties of concrete. A modified concrete is prepared by replacing coarse aggregates in concrete with rubber aggregates by varying the replacement proportion from 0% to 20% with increment of 5%. 3 cubes for each percentage of replacement are casted and tested after 28th days of curing. The physiomechanical properties like density, compressive strength and elastic properties of modified concrete are determined from concrete cubes experimentally and further stresses and displacement at every 50 mm depth of beams are determined analytically by method of initial functions (MIF. MIF is an analytical method in which elastic properties and theoretical loads are used to analyse the beams without conducting any experimental programme. The analytical results by MIF are compared with bending theory.

  16. The road to smoke-free legislation in Ireland.

    Science.gov (United States)

    Currie, Laura M; Clancy, Luke

    2011-01-01

    To describe the process through which Ireland changed its policies towards smoking in work-places and distil lessons for others implementing or extending smoke-free laws. This analysis is informed by a review of secondary sources including a commissioned media analysis, documentary analysis and key informant interviews with policy actors who provide insight into the process of smoke-free policy development. The policy analysis techniques used include the development of a time-line for policy reform, stakeholder analysis, policy mapping techniques, impact analysis through use of secondary data and a review process. The policy analysis triangle, which highlights the importance of examining policy content, context, actors and processes, will be used as an analytical framework. The importance of the political, economic, social and cultural context emerged clearly. The interaction of the context with the policy process both in identification of need for policy and its formulation demonstrated the opportunity for advocates to exert influence at all points of the process. The campaign to support the legislation had the following characteristics: a sustained consistent simple health message, sustained political leadership/commitment, a strong coalition between the Health Alliance, the Office of Tobacco Control and the Department of Health and Children, with cross-party political support and trade union support. The public and the media support clearly defined the benefit of deliberate and consistent planning and organization of a communication strategy. The Irish smoke-free legislation was a success as a policy initiative because of timing, dedication, planning, implementation and the existence of strong leadership and a powerful convinced credible political champion. © 2010 The Authors, Addiction © 2010 Society for the Study of Addiction.

  17. Creating 'healthy built environment' legislation in Australia; a policy analysis.

    Science.gov (United States)

    Harris, Patrick; Kent, Jennifer; Sainsbury, Peter; Marie-Thow, Anne; Baum, Fran; Friel, Sharon; McCue, Peter

    2017-09-05

    Influencing healthy public policy through health advocacy remains challenging. This policy analysis research uses theories of agenda setting to understand how health came to be considered for specific mention in legislation arising from land-use planning system reform in New South Wales, Australia. This qualitative study follows critical realist methodology to conduct a policy analysis of the case. We collected data from purposively sampled in-depth interviews (n = 9), a focus group and documentary analysis. We used three classic policy process (agenda setting) theories to develop an analytic framework for explaining the empirical data: Multiple Streams; Punctuated Equilibrium Theory and Advocacy Coalition Framework. The reform process presented a window of opportunity that opened incrementally over a 2 year period. The opportunity was grasped by individual policy entrepreneurs who subsequently formed a coalition of healthy planning advocates focused on strategically positioning 'health' as legislative objective for the new system. The actual point of influence seemed to appear suddenly when challenges to a perceived economic development agenda within the reforms peaked, and the health objective, see as non-threatening by all stakeholders, was taken up. Our analysis demonstrates how this particular point of influence followed sustained long-term activity by health advocates prior to and during the reform process. We demonstrate a theory-driven policy analysis of health advocacy efforts to influence an instance of major land-use planning reform. The application of multiple policy process theories enables deep understanding of what is required to effectively advocate for healthy public policy. © The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  18. Analytical Microscopy

    Energy Technology Data Exchange (ETDEWEB)

    2006-06-01

    In the Analytical Microscopy group, within the National Center for Photovoltaic's Measurements and Characterization Division, we combine two complementary areas of analytical microscopy--electron microscopy and proximal-probe techniques--and use a variety of state-of-the-art imaging and analytical tools. We also design and build custom instrumentation and develop novel techniques that provide unique capabilities for studying materials and devices. In our work, we collaborate with you to solve materials- and device-related R&D problems. This sheet summarizes the uses and features of four major tools: transmission electron microscopy, scanning electron microscopy, the dual-beam focused-ion-beam workstation, and scanning probe microscopy.

  19. A legislator`s guide to municipal solid waste management

    Energy Technology Data Exchange (ETDEWEB)

    Starkey, D; Hill, K

    1996-08-01

    The purpose of this guide is to allow individual state legislators to gain a better understanding of municipal solid waste (MSW) management issues in general, and examine the applicability of these concerns to their state. This guide incorporates a discussion of MSW management issues and a comprehensive overview of the components of an integrated solid waste management system. Major MSW topics discussed include current management issues affecting states, federal activities, and state laws and local activities. Solid waste characteristics and management approaches are also detailed.

  20. Analytical model of vertical vibrations in piles for different tip boundary conditions: parametric study and applications

    Institute of Scientific and Technical Information of China (English)

    Ning WANG; Kui-hua WANG; Wen-bing WU

    2013-01-01

    In this paper,a model named fictitious soil pile was introduced to solve the boundary coupled problem at the pile tip.In the model,the soil column between pile tip and bedrock was treated as a fictitious pile,which has the same properties as the local soil.The tip of the fictitious soil pile was assumed to rest on a rigid rock and no tip movement was allowed.In combination with the plane strain theory,the analytical solutions of vertical vibration response of piles in a frequency domain and the corresponding semi-analytical solutions in a time domain were obtained using the Laplace transforms and inverse Fourier transforms.A parametric study of pile response at the pile tip and head showed that the thickness and layering of the stratum between pile tip and bedrock have a significant influence on the complex impedances.Finally,two applications of the analytical model were presented.One is to identify the defects of the pile shaft,in which the proposed model was proved to be accurate to identify the location as well as the length of pile defects.Another application of the model is to identify the sediment thickness under the pile tip.The results showed that the sediment can lead to the decrease of the pile stiffness and increase of the damping,especially when the pile is under a low frequency load.

  1. Phonon dispersion on Ag (100) surface: A modified analytic embedded atom method study

    Science.gov (United States)

    Xiao-Jun, Zhang; Chang-Le, Chen

    2016-01-01

    Within the harmonic approximation, the analytic expression of the dynamical matrix is derived based on the modified analytic embedded atom method (MAEAM) and the dynamics theory of surface lattice. The surface phonon dispersions along three major symmetry directions , and X¯M¯ are calculated for the clean Ag (100) surface by using our derived formulas. We then discuss the polarization and localization of surface modes at points X¯ and M¯ by plotting the squared polarization vectors as a function of the layer index. The phonon frequencies of the surface modes calculated by MAEAM are compared with the available experimental and other theoretical data. It is found that the present results are generally in agreement with the referenced experimental or theoretical results, with a maximum deviation of 10.4%. The agreement shows that the modified analytic embedded atom method is a reasonable many-body potential model to quickly describe the surface lattice vibration. It also lays a significant foundation for studying the surface lattice vibration in other metals. Project supported by the National Natural Science Foundation of China (Grant Nos. 61471301 and 61078057), the Scientific Research Program Funded by Shaanxi Provincial Education Department, China (Grant No. 14JK1301), and the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20126102110045).

  2. Analytical study on accelerating falling of non-spherical particle in viscous fluid

    Institute of Scientific and Technical Information of China (English)

    Amir MALVANDI; Davood Domairry GANJI; Ali MALVANDI

    2014-01-01

    Unsteady motion of a vertically falling non-spherical particle has attracted considerable attention due to its frequent applications in nature and industry. A series of semi-analytical methods have been used to raise the results’ accuracy as well as widening the region of convergence. The current study pursued a new analytical solution for the unsteady motion of a rigid non-spherical particle in a quiescent Newtonian fluid, based on the Optimal Homotopy Analysis Method. With a view towards obtaining the highest level of accuracy and ensuring the convergence of the analytical results, the averaged residual errors were obtained and minimized. In addition to flexibility, it was also proven that the proposed method can lead to completely reliable and precisely accurate results. Based on the series solution, the effects of physical parameters on the terminal settling velocity (i.e. the greatest velocity that a falling body may reach) and the acceleration time (i.e. the time that a particle reaches the settling velocity) are investigated.

  3. Seamless Digital Environment – Plan for Data Analytics Use Case Study

    Energy Technology Data Exchange (ETDEWEB)

    Oxstrand, Johanna [Idaho National Lab. (INL), Idaho Falls, ID (United States); Bly, Aaron [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2016-09-01

    The U.S Department of Energy Light Water Reactor Sustainability (LWRS) Program initiated research in to what is needed in order to provide a roadmap or model for Nuclear Power Plants to reference when building an architecture that can support the growing data supply and demand flowing through their networks. The Digital Architecture project published report Digital Architecture Planning Model (Oxstrand et. al, 2016) discusses things to consider when building an architecture to support the increasing needs and demands of data throughout the plant. Once the plant is able to support the data demands it still needs to be able to provide the data in an easy, quick and reliable method. A common method is to create a “one stop shop” application that a user can go to get all the data they need. The creation of this leads to the need of creating a Seamless Digital Environment (SDE) to integrate all the “siloed” data. An SDE is the desired perception that should be presented to users by gathering the data from any data source (e.g., legacy applications and work management systems) without effort by the user. The goal for FY16 was to complete a feasibility study for data mining and analytics for employing information from computer-based procedures enabled technologies for use in developing improved business analytics. The research team collaborated with multiple organizations to identify use cases or scenarios, which could be beneficial to investigate in a feasibility study. Many interesting potential use cases were identified throughout the FY16 activity. Unfortunately, due to factors out of the research team’s control, none of the studies were initiated this year. However, the insights gained and the relationships built with both PVNGS and NextAxiom will be valuable when moving forward with future research. During the 2016 annual Nuclear Information Technology Strategic Leadership (NITSL) group meeting it was identified would be very beneficial to the industry to

  4. Legislative Process in the U.S. Congress.

    Science.gov (United States)

    Ray, Bruce A.

    1981-01-01

    Describes a college course which studies the U.S. House of Representatives. The course examines the origins of the House, life on the hill, rules, committee assignments, leadership, legislators, and the bureaucracy. (RM)

  5. A study of nonlinear radiation damping by matching analytic and numerical solutions

    Science.gov (United States)

    Anderson, J. L.; Hobill, D. W.

    1988-04-01

    In the present use of a mixed analytic-numerical matching scheme to study a linear oscillator that is coupled to a nonlinear field, the approximate causal solution constructed in the radiation zone was matched to a finite-differencing scheme-derived numerical solution in the inner zone. The required agreement of the two solutions in the overlap region permitted the extension of the numerical scheme arbitrarily into the future. The late time behavior of the system in all studied cases was independent of initial conditions. The linearized 'monopole energy loss' formula breaks down in cases of either fast motions or strong nonlinearities.

  6. A Meta-Analytic Study of Downsizing: Behaviors and Attitudes Prevalent Among Supervisors

    Science.gov (United States)

    1994-09-01

    purposes of this study, downsizing represents an involuntary action from the perspective of the employee and is synonymous with " layoff " and...sincerely, why the layoff is necessary. SUMM= Downsizing has become a way of life in the 1990’s. Tomorrow’s supervisors will be challenged in an...on ELECTE SEP 2 9 1994 FO A META-ANALYTIC STUDY OF DOWNSIZING : BEHAVIORS ’ " AND ATTITUDES PREVALENT AMONG SURVIVORS THESIS Donald A. O’Hare, B.S

  7. 我国未成年人烟害防制立法研究%Study on Legislation of Tobacco Hazard Prevention for Minors in China

    Institute of Scientific and Technical Information of China (English)

    闫海; 沈阳

    2012-01-01

    As one of the basic human rights, the right of health applies to everyone. Because the right of health for minors overweighs the freedom of smoking, governments have the obligation to strengthen the minor' s tobacco hazard prevention by legislation. The restrictions on the sale of tobacco to minors in China are relatively low, so ref- erence might be taken from other nations or regions as far as the reform on legislations is concerned. In addition to schools and other public laces, homes of minor' s family should also be included into non - smoking areas. Parents should take the responsibility to refrain their children from obtaining the habit of smoking, and if failed, should be admonished or punished.%健康权是人人应当享有的一项基本人权。未成年人健康权优先于吸烟自由,因此国家有义务以立法形式加强未成年人的烟害防制。我国关于向未成年人销售烟草的禁限规范位阶较低、缺失较多,应借鉴《烟草控制框架公约》及其他国家、地区的立法经验予以改革。除学校等公共场所外,我国立法应当将未成年人的家庭纳入禁烟场所,明确禁止未成年人吸烟,并对其未尽教育、制止义务的父母予以劝诫或行政处罚。

  8. 我国转基因食品安全立法模式探讨%Study on the Chinese Legislation Model of Genetically Modified Foods Safety

    Institute of Scientific and Technical Information of China (English)

    杨新莹

    2011-01-01

    Although genetically modified foods have shown the advantages compared with normal foods, there are some possible unclear risks due to the limits of scientific research. The feature of genetically modified foods and the legislations in America, EU and Japan to establish the legislation model with Chinese feature are analyzed in this paper. In the view of the current status and problems of genetically modified foods safety law, China should design our institution mode by formulating genetically modified foods safety law, strengthening safety supervision of genetically modified foods and perfecting the identification of genetically modified foods based on the risk precautionary principle to promote safety of genetically modified foods finally.%转基因食品发展至今,已显现出许多普通食品不具有的优势.同时,由于科学研究的局限性,转基因食品可能存在尚不明确的风险.为找出适合中国的转基因食品安全立法模式,分析了转基因食品的特点及美国、欧盟、日本在转基因食品问题立法上的做法,针对我国转基因食品安全立法现状与问题,提出建议,中国应采取风险预防原则,通过制定较高层次的《转基因食品安全法》、加强转基因食品安全监管和完善转基因标识制度等手段,设计出适合我国的制度模式,最终促进转基因食品安全.

  9. Predictors of Canadian legislators' support for tobacco control policies.

    Science.gov (United States)

    Cohen, Joanna E; de Guia, Nicole A; Ashley, Mary Jane; Ferrence, Roberta; Northrup, David A; Studlar, Donley T

    2002-09-01

    It is clear that regulatory strategies can be effective in reducing tobacco use. Because legislators ultimately determine whether many of these policies are enacted, they are a key focus for tobacco policy research. This study identifies political and personal predictors of Canadian legislators' support for tobacco control policies. Data are from a 1996-97 survey of federal, provincial and territorial legislators. Multivariate regression analysis was used to assess relationships between five groups of variables (political factors including political ideology, personal characteristics, tobacco experiences, tobacco knowledge, interest group saliency) and support for tobacco control based on an 11-item scale. Support for tobacco control varied by political party. Support was higher among legislators who thought government had a duty to promote healthy lifestyles, knew second-hand smoke could cause lung cancer, knew tobacco caused more deaths than alcohol, and said they wanted more contact with medical associations about tobacco issues. Support was lower among current smokers and those with tobacco industry jobs in their ridings. The findings indicate that political party membership cannot be ignored in enlisting legislator support for tobacco control. It also appears that legislators who oppose tobacco control measures may not be opposed to tobacco control per se, but are more generally opposed to a government role in health promotion. Thus, public health professionals and tobacco control advocates need to be more attentive to the way tobacco control issues are framed for particular legislators. Further, meetings with health groups about tobacco issues would be welcomed by many legislators; non-governmental organizations and other health advocates could work to increase tobacco knowledge among legislators.

  10. 33 CFR 276.5 - Legislative history.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 3 2010-07-01 2010-07-01 false Legislative history. 276.5 Section 276.5 Navigation and Navigable Waters CORPS OF ENGINEERS, DEPARTMENT OF THE ARMY, DEPARTMENT OF... Legislative history. Discussion of this legislation is contained in the reports by the Senate Committee...

  11. Legislative Basis of Pedagogical Education in Japan

    Science.gov (United States)

    Kuchai, Tetiana

    2014-01-01

    Legal framework policy of Japan in the field of education has been analyzed. The problem of influence of legislative materials on the development of education in Japan, its legislative support has been considered. It has been defined that directive materials affect the development of education system in Japan. Legislation policy of the country is…

  12. An intercomparison study of analytical methods used for quantification of levoglucosan in ambient aerosol filter samples

    Directory of Open Access Journals (Sweden)

    K. E. Yttri

    2014-07-01

    Full Text Available The monosaccharide anhydrides (MAs levoglucosan, galactosan and mannosan are products of incomplete combustion and pyrolysis of cellulose and hemicelluloses, and are found to be major constituents of biomass burning aerosol particles. Hence, ambient aerosol particle concentrations of levoglucosan are commonly used to study the influence of residential wood burning, agricultural waste burning and wild fire emissions on ambient air quality. A European-wide intercomparison on the analysis of the three monosaccharide anhydrides was conducted based on ambient aerosol quartz fiber filter samples collected at a Norwegian urban background site during winter. Thus, the samples' content of MAs is representative for biomass burning particles originating from residential wood burning. The purpose of the intercomparison was to examine the comparability of the great diversity of analytical methods used for analysis of levoglucosan, mannosan and galactosan in ambient aerosol filter samples. Thirteen laboratories participated, of which three applied High-Performance Anion-Exchange Chromatography (HPAEC, four used High-Performance Liquid Chromatography (HPLC or Ultra-Performance Liquid Chromatography (UPLC, and six resorted to Gas Chromatography (GC. The analytical methods used were of such diversity that they should be considered as thirteen different analytical methods. All of the thirteen laboratories reported levels of levoglucosan, whereas nine reported data for mannosan and/or galactosan. Eight of the thirteen laboratories reported levels for all three isomers. The accuracy for levoglucosan, presented as the mean percentage error (PE for each participating laboratory, varied from −63 to 23%; however, for 62% of the laboratories the mean PE was within ±10%, and for 85% the mean PE was within ±20%. For mannosan, the corresponding range was −60 to 69%, but as for levoglucosan, the range was substantially smaller for a subselection of the laboratories; i

  13. Legislative Review. A Look at Higher Education in Week 11: March 21-25, 2011

    Science.gov (United States)

    North Dakota University System, 2011

    2011-01-01

    This issue of "Legislative Review" takes a look at the news in higher education from March 21 to 25, 2011. This Legislative Review reports that: (1) HCR 3046 was heard March 23 in a joint meeting of the House Constitutional Revision and House Education Committees; (2) SCR 4017, a bill directing that Legislative Management study the…

  14. Application of X-ray fluorescence analytical techniques in phytoremediation and plant biology studies

    Science.gov (United States)

    Nečemer, Marijan; Kump, Peter; Ščančar, Janez; Jaćimović, Radojko; Simčič, Jurij; Pelicon, Primož; Budnar, Miloš; Jeran, Zvonka; Pongrac, Paula; Regvar, Marjana; Vogel-Mikuš, Katarina

    2008-11-01

    Phytoremediation is an emerging technology that employs the use of higher plants for the clean-up of contaminated environments. Progress in the field is however handicapped by limited knowledge of the biological processes involved in plant metal uptake, translocation, tolerance and plant-microbe-soil interactions; therefore a better understanding of the basic biological mechanisms involved in plant/microbe/soil/contaminant interactions would allow further optimization of phytoremediation technologies. In view of the needs of global environmental protection, it is important that in phytoremediation and plant biology studies the analytical procedures for elemental determination in plant tissues and soil should be fast and cheap, with simple sample preparation, and of adequate accuracy and reproducibility. The aim of this study was therefore to present the main characteristics, sample preparation protocols and applications of X-ray fluorescence-based analytical techniques (energy dispersive X-ray fluorescence spectrometry—EDXRF, total reflection X-ray fluorescence spectrometry—TXRF and micro-proton induced X-ray emission—micro-PIXE). Element concentrations in plant leaves from metal polluted and non-polluted sites, as well as standard reference materials, were analyzed by the mentioned techniques, and additionally by instrumental neutron activation analysis (INAA) and atomic absorption spectrometry (AAS). The results were compared and critically evaluated in order to assess the performance and capability of X-ray fluorescence-based techniques in phytoremediation and plant biology studies. It is the EDXRF, which is recommended as suitable to be used in the analyses of a large number of samples, because it is multi-elemental, requires only simple preparation of sample material, and it is analytically comparable to the most frequently used instrumental chemical techniques. The TXRF is compatible to FAAS in sample preparation, but relative to AAS it is fast

  15. Analytical study of the conjecture rule for the combination of multipole effects in LHC

    CERN Document Server

    Guignard, Gilbert

    1997-01-01

    This paper summarizes the analytical investigation done on the conjecture law found by tracking for the effect on the dynamic aperture of the combination of two multipoles of various order. A one-dimensional model leading to an integrable system has been used to find closed formulae for the dynamic aperture associated with a fully distributed multipole. The combination has then been studied and the resulting expression compared with the assumed conjecture law. For integrated multipoles small with respect to the focusing strength, the conjecture appears to hold, though with an exponent different from the one expected by crude reasoning.

  16. Designing Robust Process Analytical Technology (PAT) Systems for Crystallization Processes: A Potassium Dichromate Crystallization Case Study

    DEFF Research Database (Denmark)

    Abdul Samad, Noor Asma Fazli Bin; Sin, Gürkan

    2013-01-01

    The objective of this study is to test and validate a Process Analytical Technology (PAT) system design on a potassium dichromate crystallization process in the presence of input uncertainties using uncertainty and sensitivity analysis. To this end a systematic framework for managing uncertainties...... in the nucleation and crystal growth parameters affect the product-process performances (e.g. crystal size distribution (CSD)). Analysis of the proposed PAT system design (closedloop), on the other hand, shows that the effect of the input uncertainties on the outputs (product quality) is minimized, and the target...

  17. Analytical and computational study of magnetization switching in kinetic Ising systems with demagnetizing fields

    DEFF Research Database (Denmark)

    Richards, H.L.; Rikvold, P.A.

    1996-01-01

    particularly promising as materials for high-density magnetic recording media. In this paper we use analytic arguments and Monte Carlo simulations to quantitatively study the effects of the demagnetizing field on the dynamics of magnetization switching in two-dimensional, single-domain, kinetic Ising systems....... For systems in the weak-field ''stochastic region,'' where magnetization switching is on average effected by the nucleation and growth of a single droplet, the simulation results can be explained by a simple model in which the free energy is a function only of magnetization. In the intermediate...

  18. A finite-buffer queue with a single vacation policy: An analytical study with evolutionary positioning

    Directory of Open Access Journals (Sweden)

    Woźniak Marcin

    2014-12-01

    Full Text Available In this paper, application of an evolutionary strategy to positioning a GI/M/1/N-type finite-buffer queueing system with exhaustive service and a single vacation policy is presented. The examined object is modeled by a conditional joint transform of the first busy period, the first idle time and the number of packets completely served during the first busy period. A mathematical model is defined recursively by means of input distributions. In the paper, an analytical study and numerical experiments are presented. A cost optimization problem is solved using an evolutionary strategy for a class of queueing systems described by exponential and Erlang distributions.

  19. Analytical Study on Wave Diffraction from a Vertical Circular Cylinder in Front of Orthogonal Vertical Walls

    Institute of Scientific and Technical Information of China (English)

    NING Dezhi; TENG Bin; SONG Xiangqun

    2005-01-01

    In this paper, the principle of mirror image is used to transform the problem of wave diffraction from a circular cylinder in front of orthogonal vertical walls into the problem of diffraction of four symmetric incident waves from four symmetrically arranged circular cylinders, and then the eigenfunction expansion of velocity potential and Grafs addition theorem are used to give the analytical solution to the wave diffraction problem. The relation of the total wave force on cylinder to the distance between the cylinder and orthogonal vertical walls and the incidence angle of wave is also studied by numerical computation.

  20. Analytical study on coordinative optimization of convection in tubes with variable heat flux

    Institute of Scientific and Technical Information of China (English)

    YUAN Zhongxian; ZHANG Jianguo; JIANG Mingjian

    2004-01-01

    The laminar heat transfer in the thermal entrance region in round tubes, which has a variable surface heat flux boundary condition, is analytically studied. The results show that the heat transfer coefficient is closely related to the wall temperature gradient along the tube axis. The greater the gradient, the higher the heat transfer rate. Furthermore, the coordination of the velocity and the temperature gradient fields is also analysed under different surface heat fluxes. The validity of the field coordination principle is verified by checking the correlation of heat transfer coefficient and the coordination degree. The results also demonstrate that optimizing the thermal boundary condition is a way to enhance heat transfer.

  1. Seismic vulnerability of the Himalayan half-dressed rubble stone masonry structures, experimental and analytical studies

    Directory of Open Access Journals (Sweden)

    N. Ahmad

    2012-11-01

    Full Text Available Half-Dressed rubble stone (DS masonry structures as found in the Himalayan region are investigated using experimental and analytical studies. The experimental study included a shake table test on a one-third scaled structural model, a representative of DS masonry structure employed for public critical facilities, e.g. school buildings, offices, health care units, etc. The aim of the experimental study was to understand the damage mechanism of the model, develop damage scale towards deformation-based assessment and retrieve the lateral force-deformation response of the model besides its elastic dynamic properties, i.e. fundamental vibration period and elastic damping. The analytical study included fragility analysis of building prototypes using a fully probabilistic nonlinear dynamic method. The prototypes are designed as SDOF systems assigned with lateral, force-deformation constitutive law (obtained experimentally. Uncertainties in the constitutive law, i.e. lateral stiffness, strength and deformation limits, are considered through random Monte Carlo simulation. Fifty prototype buildings are analyzed using a suite of ten natural accelerograms and an incremental dynamic analysis technique. Fragility and vulnerability functions are derived for the damageability assessment of structures, economic loss and casualty estimation during an earthquake given the ground shaking intensity, essential within the context of risk assessment of existing stock aiming towards risk mitigation and disaster risk reduction.

  2. Employment protection legislation in Croatia

    Directory of Open Access Journals (Sweden)

    Marina Kunovac

    2014-06-01

    Full Text Available According to business climate and competitiveness indicators published by international organisations, Croatia is a country with a rigid labour market and a high level of the legal protection of employees. Given that an Act on Amendments to the Labour Act (OG 73/13 entered into force in Croatia in June 2013, this paper examines changes in employment protection legislation in Croatia and Central and Eastern European (CEE countries, as well as in Croatia's main trading partners during the period between 2008 and 2013. A cross-country comparison shows a strong downward trend in legal employment protection in most CEE countries during the observed period, primarily as concerns individual dismissal in the cases of regular employment contracts, while in the case of temporary employment the protection strengthened slightly. On the other hand, despite the adoption of amendments to the Labour Act (LA, Croatian labour legislation governing employment protection for regular employment contracts remains relatively inflexible compared to that in other countries.

  3. A comparative study on three analytical methods for the determination of the neurotoxin BMAA in cyanobacteria.

    Directory of Open Access Journals (Sweden)

    Elisabeth J Faassen

    Full Text Available The cyanobacterial neurotoxin β-N-methylamino-L-alanine (BMAA has been considered a serious health threat because of its putative role in multiple neurodegenerative diseases. First reports on BMAA concentrations in cyanobacteria were alarming: nearly all cyanobacteria were assumed to contain high BMAA concentrations, implying ubiquitous exposure. Recent studies however question this presence of high BMAA concentrations in cyanobacteria. To assess the real risk of BMAA to human health, this discrepancy must be resolved. We therefore tested whether the differences found could be caused by the analytical methods used in different studies. Eight cyanobacterial samples and two control samples were analyzed by three commonly used methods: HPLC-FLD analysis and LC-MS/MS analysis of both derivatized and underivatized samples. In line with published results, HPLC-FLD detected relatively high BMAA concentrations in some cyanobacterial samples, while both LC-MS/MS methods only detected BMAA in the positive control (cycad seed sarcotesta. Because we could eliminate the use of different samples and treatments as causal factors, we demonstrate that the observed differences were caused by the analytical methods. We conclude that HPLC-FLD overestimated BMAA concentrations in some cyanobacterial samples due to its low selectivity and propose that BMAA might be present in (some cyanobacteria, but in the low µg/g or ng/g range instead of the high µg/g range as sometimes reported before. We therefore recommend to use only selective and sensitive analytical methods like LC-MS/MS for BMAA analysis. Although possibly present in low concentrations in cyanobacteria, BMAA can still form a health risk. Recent evidence on BMAA accumulation in aquatic food chains suggests human exposure through consumption of fish and shellfish which expectedly exceeds exposure through cyanobacteria.

  4. The European Legislation and Protection of Trademarks in Romania

    Directory of Open Access Journals (Sweden)

    Codruta Stefania Jucan

    2011-05-01

    Full Text Available Objective: The present paper aims at producing a brief account and analysis of the changes thathave been made to the Romanian Trademark Law during the last few years in order to achieve harmonizationwith the European Trademark Law. Prior Work: The subject is being researched especially by the authorsfrom abroad and only the last years brought new investigations from the Romanians. Approach: The presentpaper was put together using a synthesis and analytical approach, taking in account different sources fromlegislation, court cases to papers that have been written about the subject. Results: The result of this studyindicates a way of harmonizing the internal legislation of Romania with that of the E.U on the subject andfuture directions of Trademark Law. Implications: The present study does its part in the intellectual propertystudies research area, offering a better view on the problems regarding the trademark law and itsnaturalization in the legal systems of the member states. Value: The study at hand is of great value inunderstanding the problems and challenges in the harmonization of legal concepts using the example ofIntellectual Property Rights in the U.E.

  5. Road traffic accidents; An observational and analytical study exploring the hidden truths in Pakistan and South East-Asian Countries

    Directory of Open Access Journals (Sweden)

    Tabish Hussain1, Li Yu Shu

    2011-01-01

    Full Text Available Despite national traffic legislation and known safety benefits of traffic laws, awareness remains low in Pakistan. Study aim was to determine level of knowledge about traffic legislation and attitudes towards their observation in capital city Islamabad to provide baseline data for formulation of an intervention aimed at strengthening road safety law enforcement. Survey-Analysis with Random Observational study was conducted by using standard survey questionnaire focusing Roadsafety awareness levels and use of helmets/seatbelts on MainRoads and StreetRoads.Drivers/passengers/pedestrian were randomly selected to participate in face-to-face interview to ascertain attitudes. Overall, Deficient Road-Safety Awareness was at top(27%followed by wrong use/no use of seatbelts/helmets(21% and legislative aspects were at last(17%including under-age driving,vehicles without fitness and licensure problems exploring the bitter hidden truths. Actions areas for preventing Road Traffic Accidents(RTAs include interventions to improve road-safety education, identification /implementation of safety measures for traffic black-spots, enforcement of seatbelt/helmet laws and the development of highway ordinances. PRECAUTION IS BETTER THAN CURE as Road Traffic Accidents are 100% preventable.

  6. New psychoactive substances legislation in Ireland - Perspectives from academia.

    Science.gov (United States)

    Kavanagh, Pierce V; Power, John D

    2014-01-01

    The emergence of 'legal highs' or 'new psychoactive substances' (NPS) on the Irish market is reflective of their appearance in many countries, with some notable exceptions. The official response to the situation is examined here by looking at Irish controlled drugs legislation and drug enforcement policies as enacted in recent years and their effects on academic research on NPS. The philosophy and practice of outright bans of scheduled substances has not been effective in delivering the stated aims of illicit drug control, namely harm reduction. With these legislative changes, we have witnessed the removal of the 'legitimate' sale and open marketing of a number of NPS to the general public in commercial retail premises. However, as legislation was enacted, suppliers and vendors rapidly changed the contents of their legal high products from now controlled to non-controlled substances. We have found that it is administratively challenging to perform scientific research on controlled substances at academic institutions. It is desirable to gather analytical, pharmacological, and toxicological data on these substances as they emerge on the market but due to the restrictive nature of licensing requirements, once a substance or generic class of substances is controlled, this becomes more difficult. The facts that any quantity of substance, no matter how small, is controlled, the nomenclature used to describe compounds is not consistent within the enacted legislation and the use of catch-all classes of compounds with the intention of controlling many similar molecular structures, all create problematic issues for academic researchers.

  7. The path dependency theory: analytical framework to study institutional integration. The case of France

    Science.gov (United States)

    Trouvé, Hélène; Couturier, Yves; Etheridge, Francis; Saint-Jean, Olivier; Somme, Dominique

    2010-01-01

    Background The literature on integration indicates the need for an enhanced theorization of institutional integration. This article proposes path dependence as an analytical framework to study the systems in which integration takes place. Purpose PRISMA proposes a model for integrating health and social care services for older adults. This model was initially tested in Quebec. The PRISMA France study gave us an opportunity to analyze institutional integration in France. Methods A qualitative approach was used. Analyses were based on semi-structured interviews with actors of all levels of decision-making, observations of advisory board meetings, and administrative documents. Results Our analyses revealed the complexity and fragmentation of institutional integration. The path dependency theory, which analyzes the change capacity of institutions by taking into account their historic structures, allows analysis of this situation. The path dependency to the Bismarckian system and the incomplete reforms of gerontological policies generate the coexistence and juxtaposition of institutional systems. In such a context, no institution has sufficient ability to determine gerontology policy and build institutional integration by itself. Conclusion Using path dependence as an analytical framework helps to understand the reasons why institutional integration is critical to organizational and clinical integration, and the complex construction of institutional integration in France. PMID:20689740

  8. An analytical model and parametric study of electrical contact resistance in proton exchange membrane fuel cells

    Science.gov (United States)

    Wu, Zhiliang; Wang, Shuxin; Zhang, Lianhong; Hu, S. Jack

    This paper presents an analytical model of the electrical contact resistance between the carbon paper gas diffusion layers (GDLs) and the graphite bipolar plates (BPPs) in a proton exchange membrane (PEM) fuel cell. The model is developed based on the classical statistical contact theory for a PEM fuel cell, using the same probability distributions of the GDL structure and BPP surface profile as previously described in Wu et al. [Z. Wu, Y. Zhou, G. Lin, S. Wang, S.J. Hu, J. Power Sources 182 (2008) 265-269] and Zhou et al. [Y. Zhou, G. Lin, A.J. Shih, S.J. Hu, J. Power Sources 163 (2007) 777-783]. Results show that estimates of the contact resistance compare favorably with experimental data by Zhou et al. [Y. Zhou, G. Lin, A.J. Shih, S.J. Hu, J. Power Sources 163 (2007) 777-783]. Factors affecting the contact behavior are systematically studied using the analytical model, including the material properties of the two contact bodies and factors arising from the manufacturing processes. The transverse Young's modulus of chopped carbon fibers in the GDL and the surface profile of the BPP are found to be significant to the contact resistance. The factor study also sheds light on the manufacturing requirements of carbon fiber GDLs for a better contact performance in PEM fuel cells.

  9. An analytical model and parametric study of electrical contact resistance in proton exchange membrane fuel cells

    Energy Technology Data Exchange (ETDEWEB)

    Wu, Zhiliang; Wang, Shuxin; Zhang, Lianhong [School of Mechanical Engineering, Tianjin University, Tianjin 300072 (China); Hu, S. Jack [Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109-2125 (United States)

    2009-04-15

    This paper presents an analytical model of the electrical contact resistance between the carbon paper gas diffusion layers (GDLs) and the graphite bipolar plates (BPPs) in a proton exchange membrane (PEM) fuel cell. The model is developed based on the classical statistical contact theory for a PEM fuel cell, using the same probability distributions of the GDL structure and BPP surface profile as previously described in Wu et al. [Z. Wu, Y. Zhou, G. Lin, S. Wang, S.J. Hu, J. Power Sources 182 (2008) 265-269] and Zhou et al. [Y. Zhou, G. Lin, A.J. Shih, S.J. Hu, J. Power Sources 163 (2007) 777-783]. Results show that estimates of the contact resistance compare favorably with experimental data by Zhou et al. [Y. Zhou, G. Lin, A.J. Shih, S.J. Hu, J. Power Sources 163 (2007) 777-783]. Factors affecting the contact behavior are systematically studied using the analytical model, including the material properties of the two contact bodies and factors arising from the manufacturing processes. The transverse Young's modulus of chopped carbon fibers in the GDL and the surface profile of the BPP are found to be significant to the contact resistance. The factor study also sheds light on the manufacturing requirements of carbon fiber GDLs for a better contact performance in PEM fuel cells. (author)

  10. Estimation of fault parameters using GRACE observations and analytical model. Case study: The 2010 Chile earthquake

    Science.gov (United States)

    Fatolazadeh, Farzam; Naeeni, Mehdi Raoofian; Voosoghi, Behzad; Rahimi, Armin

    2017-07-01

    In this study, an inversion method is used to constrain the fault parameters of the 2010 Chile Earthquake using gravimetric observations. The formulation consists of using monthly Geopotential coefficients of GRACE observations in a conjunction with the analytical model of Okubo 1992 which accounts for the gravity changes resulting from Earthquake. At first, it is necessary to eliminate the hydrological and oceanic effects from GRACE monthly coefficients and then a spatio-spectral localization analysis, based on wavelet local analysis, should be used to filter the GRACE observations and to better refine the tectonic signal. Finally, the corrected GRACE observations are compared with the analytical model using a nonlinear inversion algorithm. Our results show discernible differences between the computed average slip using gravity observations and those predicted from other co-seismic models. In this study, fault parameters such as length, width, depth, dip, strike and slip are computed using the changes in gravity and gravity gradient components. By using the variations of gravity gradient components the above mentioned parameters are determined as 428 ± 6 Km, 203 ± 5 Km, 5 Km, 10°, 13° and 8 ± 1.2 m respectively. Moreover, the values of the seismic moment and moment magnitude are 2. 09 × 1022 N m and 8.88 Mw respectively which show the small differences with the values reported from USGS (1. 8 × 1022N m and 8.83 Mw).

  11. Service Quality of Online Shopping Platforms: A Case-Based Empirical and Analytical Study

    Directory of Open Access Journals (Sweden)

    Tsan-Ming Choi

    2013-01-01

    Full Text Available Customer service is crucially important for online shopping platforms (OSPs such as eBay and Taobao. Based on the well-established service quality instruments and the scenario of the specific case on Taobao, this paper focuses on exploring the service quality of an OSP with an aim of revealing customer perceptions of the service quality associated with the provided functions and investigating their impacts on customer loyalty. By an empirical study, this paper finds that the “fulfillment and responsiveness” function is significantly related to the customer loyalty. Further analytical study is conducted to reveal that the optimal service level on the “fulfillment and responsiveness” function for the risk averse OSP uniquely exists. Moreover, the analytical results prove that (i if the customer loyalty is more positively correlated to the service level, it will lead to a larger optimal service level, and (ii the optimal service level is independent of the profit target, the source of uncertainty, and the risk preference of the OSP.

  12. On New Families of Integrals in Analytical Studies of Superconductors within the Conformal Transformation Method

    Directory of Open Access Journals (Sweden)

    Ryszard Gonczarek

    2015-01-01

    Full Text Available We show that, by applying the conformal transformation method, strongly correlated superconducting systems can be discussed in terms of the Fermi liquid with a variable density of states function. Within this approach, it is possible to formulate and carry out purely analytical study based on a set of fundamental equations. After presenting the mathematical structure of the s-wave superconducting gap and other quantitative characteristics of superconductors, we evaluate and discuss integrals inherent in fundamental equations describing superconducting systems. The results presented here extend the approach formulated by Abrikosov and Maki, which was restricted to the first-order expansion. A few infinite families of integrals are derived and allow us to express the fundamental equations by means of analytical formulas. They can be then exploited in order to find quantitative characteristics of superconducting systems by the method of successive approximations. We show that the results can be applied in studies of high-Tc superconductors and other superconducting materials of the new generation.

  13. Analytical studies on tobacco-specific N-nitrosamines in tobacco and tobacco smoke.

    Science.gov (United States)

    Brunnemann, K D; Hoffmann, D

    1991-01-01

    Chemical-analytical studies have led to the identification of approximately 3000 compounds in tobacco and 4000 in tobacco smoke. These include carcinogens in processed tobacco as well as tumor initiators, tumor promoters, cocarcinogens, and organ-specific carcinogens in tobacco smoke. The latter group includes N-nitrosamines, in particular those that derive from nicotine and other tobacco alkaloids, the TSNA. In vitro nitrosation of nicotine yields NNN, NNA, and NNK. Nitrosation of other tobacco alkaloids leads to the formation of NAT, and NAB. Our analytical studies using GC-TEA have led to the identification of seven TSNA in tobacco and tobacco smoke. In addition to NNN, NAT, NAB, and NNK, we also identified NNAL, iso-NNAL, and, most recently, iso-NNAC. Their levels range from 0.01 to 92 ppm in tobacco and from 6 to 530 ng/cigarette in tobacco smoke. The high levels observed in snuff are primarily due to fermentation and aging. Technological methods exist today to reduce the levels of TSNA in both tobacco and cigarette smoke.

  14. The path dependency theory: analytical framework to study institutional integration. The case of France

    Directory of Open Access Journals (Sweden)

    Hélène Trouvé

    2010-06-01

    Full Text Available Background: The literature on integration indicates the need for an enhanced theorization of institutional integration. This article proposes path dependence as an analytical framework to study the systems in which integration takes place.Purpose: PRISMA proposes a model for integrating health and social care services for older adults. This model was initially tested in Quebec. The PRISMA France study gave us an opportunity to analyze institutional integration in France.Methods: A qualitative approach was used. Analyses were based on semi-structured interviews with actors of all levels of decision-making, observations of advisory board meetings, and administrative documents.Results: Our analyses revealed the complexity and fragmentation of institutional integration. The path dependency theory, which analyzes the change capacity of institutions by taking into account their historic structures, allows analysis of this situation. The path dependency to the Bismarckian system and the incomplete reforms of gerontological policies generate the coexistence and juxtaposition of institutional systems. In such a context, no institution has sufficient ability to determine gerontology policy and build institutional integration by itself.Conclusion: Using path dependence as an analytical framework helps to understand the reasons why institutional integration is critical to organizational and clinical integration, and the complex construction of institutional integration in France.

  15. The path dependency theory: analytical framework to study institutional integration. The case of France

    Directory of Open Access Journals (Sweden)

    Hélène Trouvé

    2010-06-01

    Full Text Available Background: The literature on integration indicates the need for an enhanced theorization of institutional integration. This article proposes path dependence as an analytical framework to study the systems in which integration takes place. Purpose: PRISMA proposes a model for integrating health and social care services for older adults. This model was initially tested in Quebec. The PRISMA France study gave us an opportunity to analyze institutional integration in France. Methods: A qualitative approach was used. Analyses were based on semi-structured interviews with actors of all levels of decision-making, observations of advisory board meetings, and administrative documents. Results: Our analyses revealed the complexity and fragmentation of institutional integration. The path dependency theory, which analyzes the change capacity of institutions by taking into account their historic structures, allows analysis of this situation. The path dependency to the Bismarckian system and the incomplete reforms of gerontological policies generate the coexistence and juxtaposition of institutional systems. In such a context, no institution has sufficient ability to determine gerontology policy and build institutional integration by itself. Conclusion: Using path dependence as an analytical framework helps to understand the reasons why institutional integration is critical to organizational and clinical integration, and the complex construction of institutional integration in France.

  16. A 14-year longitudinal study of the impact of clean indoor air legislation on state smoking prevalence, USA, 1997-2010.

    Science.gov (United States)

    Becker, Craig M; Lee, Joseph G L; Hudson, Suzanne; Hoover, Jeanne; Civils, Donald

    2017-06-01

    While clean indoor air legislation at the state level is an evidence-based recommendation, only limited evidence exists regarding the impact of clean indoor air policies on state smoking prevalence. Using state smoking prevalence data from 1997 to 2010, a repeated measures observational analysis assessed the association between clean indoor air policies (i.e., workplace, restaurant, and bar) and state smoking prevalence while controlling for state cigarette taxes and year. The impacts from the number of previous years with any clean indoor air policy, the number of policies in effect during the current year, and the number of policies in effect the previous year were analyzed. Findings indicate a smoking prevalence predicted decrease of 0.13 percentage points (p=0.03) for each additional year one or more clean indoor air policies were in effect, a predicted decrease of 0.12 percentage points (p=0.09) for each policy in effect in the current year, and a predicted decrease of 0.22 percentage points (p=0.01) for each policy in effect in the previous year on the subsequent year. Clean indoor air policies show measurable associations with reductions in smoking prevalence within a year of implementation above and beyond taxes and time trends. Further efforts are needed to diffuse clean indoor air policies across states and provinces that have not yet adopted such policies. Copyright © 2017 The Authors. Published by Elsevier Inc. All rights reserved.

  17. Maternal and infant activity: Analytic approaches for the study of circadian rhythm.

    Science.gov (United States)

    Thomas, Karen A; Burr, Robert L; Spieker, Susan

    2015-11-01

    The study of infant and mother circadian rhythm entails choice of instruments appropriate for use in the home environment as well as selection of analytic approach that characterizes circadian rhythm. While actigraphy monitoring suits the needs of home study, limited studies have examined mother and infant rhythm derived from actigraphy. Among this existing research a variety of analyses have been employed to characterize 24-h rhythm, reducing ability to evaluate and synthesize findings. Few studies have examined the correspondence of mother and infant circadian parameters for the most frequently cited approaches: cosinor, non-parametric circadian rhythm analysis (NPCRA), and autocorrelation function (ACF). The purpose of this research was to examine analytic approaches in the study of mother and infant circadian activity rhythm. Forty-three healthy mother and infant pairs were studied in the home environment over a 72h period at infant age 4, 8, and 12 weeks. Activity was recorded continuously using actigraphy monitors and mothers completed a diary. Parameters of circadian rhythm were generated from cosinor analysis, NPCRA, and ACF. The correlation among measures of rhythm center (cosinor mesor, NPCRA mid level), strength or fit of 24-h period (cosinor magnitude and R(2), NPCRA amplitude and relative amplitude (RA)), phase (cosinor acrophase, NPCRA M10 and L5 midpoint), and rhythm stability and variability (NPCRA interdaily stability (IS) and intradaily variability (IV), ACF) was assessed, and additionally the effect size (eta(2)) for change over time evaluated. Results suggest that cosinor analysis, NPCRA, and autocorrelation provide several comparable parameters of infant and maternal circadian rhythm center, fit, and phase. IS and IV were strongly correlated with the 24-h cycle fit. The circadian parameters analyzed offer separate insight into rhythm and differing effect size for the detection of change over time. Findings inform selection of analysis and

  18. Architectural integration of solar thermal systems and photovoltaic: study of Spanish legislation by thermal collectors in buildings; Integracion arquitectonica de sistemas solares termicos y fotovoltaicos: estudio de la legislacion espanola sobre captadores termicos en edificios

    Energy Technology Data Exchange (ETDEWEB)

    Bosqued, G. R.; Heras, C. M. R.

    2004-07-01

    In this article the legal dispositions are studied relating to architectural integration and urban landscape, considered in the different mandatories and Spanish local legislation on the use of thermal solar systems in construction, new and rehabilitated. As consequence some of the multiple possibilities that exist, are analyzed to place the external part of the system, the solar collectors, in the envelop of the building, without any aesthetic reduction on the building and urban set, and in this way fulfill with specified in the normative to contribute to a bigger respect to the environment. (Author)

  19. Analytical study of the energy rate balance equation for the magnetospheric storm-ring current

    Directory of Open Access Journals (Sweden)

    A. L. Clúa de Gonzalez

    Full Text Available We present some results of the analytical integration of the energy rate balance equation, assuming that the input energy rate is proportional to the azimuthal interplanetary electric field, Ey, and can be described by simple rectangular or triangular functions, as approximations to the frequently observed shapes of Ey, especially during the passage of magnetic clouds. The input function is also parametrized by a reconnection-transfer efficiency factor α (which is assumed to vary between 0.1 and 1. Our aim is to solve the balance equation and derive values for the decay parameter τ compatible with the observed Dst peak values. To facilitate the analytical integration we assume a constant value for τ through the main phase of the storm. The model is tested for two isolated and well-monitored intense storms. For these storms the analytical results are compared to those obtained by the numerical integration of the balance equation, based on the interplanetary data collected by the ISEE-3 satellite, with the τ values parametrized close to those obtained by the analytical study. From the best fit between this numerical integration and the observed Dst the most appropriate values of τ are then determined. Although we specifically focus on the main phase of the storms, this numerical integration has been also extended to the recovery phase by an independent adjust. The results of the best fit for the recovery phase show that the values of τ may differ drastically from those corresponding to the main phase. The values of the decay parameter for the main phase of each event, τm, are found to be very sensitive to the adopted efficiency factor, α, decreasing as this factor increases. For the recovery phase, which is characterized by very low values of the power input, the response function becomes almost independent of the value of α and the resulting values for the decay time

  20. Analytical study of the energy rate balance equation for the magnetospheric storm-ring current

    Science.gov (United States)

    Clúa de Gonzalez, A. L.; Gonzalez, W. D.

    1998-11-01

    We present some results of the analytical integration of the energy rate balance equation, assuming that the input energy rate is proportional to the azimuthal interplanetary electric field, Ey, and can be described by simple rectangular or triangular functions, as approximations to the frequently observed shapes of Ey, especially during the passage of magnetic clouds. The input function is also parametrized by a reconnection-transfer efficiency factor (which is assumed to vary between 0.1 and 1). Our aim is to solve the balance equation and derive values for the decay parameter compatible with the observed Dst peak values. To facilitate the analytical integration we assume a constant value for through the main phase of the storm. The model is tested for two isolated and well-monitored intense storms. For these storms the analytical results are compared to those obtained by the numerical integration of the balance equation, based on the interplanetary data collected by the ISEE-3 satellite, with the values parametrized close to those obtained by the analytical study. From the best fit between this numerical integration and the observed Dst the most appropriate values of are then determined. Although we specifically focus on the main phase of the storms, this numerical integration has been also extended to the recovery phase by an independent adjust. The results of the best fit for the recovery phase show that the values of may differ drastically from those corresponding to the main phase. The values of the decay parameter for the main phase of each event, m, are found to be very sensitive to the adopted efficiency factor, , decreasing as this factor increases. For the recovery phase, which is characterized by very low values of the power input, the response function becomes almost independent of the value of and the resulting values for the decay time parameter, r, do not vary greatly as varies. As a consequence, the relative values of between the main and the

  1. Learning Analytics focused on student behavior. Case study: dropout in distance learning institutions

    Directory of Open Access Journals (Sweden)

    Jose Aguilar

    2017-04-01

    Full Text Available Normally, Learning Analytics (LA can be focused on the analysis of the learning process or the student behavior. In this paper is analyzed the use of LA in the context of distance learning universities, particularly focuses on the students’ behavior. We propose to use a new concept, called "Autonomic Cycle of Learning Analysis Tasks", which defines a set of tasks of LA, whose common objective is to achieve an improvement in the process under study. In this paper, we develop the "Autonomic Cycle of LA Tasks" to analyze the dropout in distance learning institutions. We use a business intelligence methodology in order to develop the "Autonomic Cycle of LA Tasks" for the analysis of the dropout in distance learning. The Autonomic Cycle identifies factors that influence the decision of a student to abandon their studies, predicts the potentially susceptible students to abandon their university studies, and define a motivational pattern for these students.

  2. Green supply chain management strategy selection using analytic network process: case study at PT XYZ

    Science.gov (United States)

    Adelina, W.; Kusumastuti, R. D.

    2017-01-01

    This study is about business strategy selection for green supply chain management (GSCM) for PT XYZ by using Analytic Network Process (ANP). GSCM is initiated as a response to reduce environmental impacts from industrial activities. The purposes of this study are identifying criteria and sub criteria in selecting GSCM Strategy, and analysing a suitable GSCM strategy for PT XYZ. This study proposes ANP network with 6 criteria and 29 sub criteria, which are obtained from the literature and experts’ judgements. One of the six criteria contains GSCM strategy options, namely risk-based strategy, efficiency-based strategy, innovation-based strategy, and closed loop strategy. ANP solves complex GSCM strategy-selection by using a more structured process and considering green perspectives from experts. The result indicates that innovation-based strategy is the most suitable green supply chain management strategy for PT XYZ.

  3. An Eye-tracking Study of Notational, Informational, and Emotional Aspects of Learning Analytics Representations

    DEFF Research Database (Denmark)

    Vatrapu, Ravi; Reimann, Peter; Bull, Susan;

    2013-01-01

    This paper presents an eye-tracking study of notational, informational, and emotional aspects of nine different notational systems (Skill Meters, Smilies, Traffic Lights, Topic Boxes, Collective Histograms, Word Clouds, Textual Descriptors, Table, and Matrix) and three different information state...... of learning analytics representations and discourse environments are discussed....... (Weak, Average, & Strong) used to represent student's learning. Findings from the eye-tracking study show that higher emotional activation was observed for the metaphorical notations of traffic lights and smilies and collective representations. Mean view time was higher for representations...... of the "average" informational learning state. Qualitative data analysis of the think-aloud comments and post-study interview show that student participants reflected on the meaning-making opportunities and action-taking possibilities afforded by the representations. Implications for the design and evaluation...

  4. An Analytical Study of Occupational Stress on Executive Officers of Nepal

    Directory of Open Access Journals (Sweden)

    R. Kayastha

    2012-04-01

    Full Text Available In the scenario of ever growing number of new technology entering formal workforce; increasing amount of work stress both at home and workplace and its impact on family and home environment, the present study entitled, ‘an analytical study executive officers of working, different cities of Nepal was undertaken with the objectives to know socio personal characteristics of selected categories of executive officers and their families; to examine the age and the level occupational stress of executive officers and to analyze the level of occupational stress by selected respondents. The study was conducted in different cities of Nepal and a total sample of 440 respondents was collected from different categories of working executive officers namely; university and college, Information system, Industries and bank employees. The results show there is a significant relationship existing between from different categories of working executive officers namely; university and college, Information system, Industries and bank employees.

  5. Chasing the effects of Pre-analytical Confounders - a Multicentre Study on CSF-AD biomarkers

    Directory of Open Access Journals (Sweden)

    Maria Joao Leitao

    2015-07-01

    Full Text Available Core cerebrospinal fluid (CSF biomarkers-Aβ42, Tau and pTau–have been recently incorporated in the revised criteria for Alzheimer’s disease (AD. However, their widespread clinical application lacks standardization. Pre-analytical sample handling and storage play an important role in the reliable measurement of these biomarkers across laboratories. In this study, we aim to surpass the efforts from previous studies, by employing a multicentre approach to assess the impact of less studied CSF pre-analytical confounders in AD-biomarkers quantification. Four different centres participated in this study and followed the same established protocol. CSF samples were analysed for three biomarkers (Aβ42, Tau and pTau and tested for different spinning conditions (temperature: Room temperature (RT vs. 4oC; speed: 500g vs. 2000g vs. 3000g, storage volume variations (25%, 50% and 75% of tube total volume as well as freezing-thaw cycles (up to 5 cyles. The influence of sample routine parameters, inter-centre variability and relative value of each biomarker (reported as normal/abnormal, was analysed. Centrifugation conditions did not influence biomarkers levels, except for samples with a high CSF total protein content, where either non centrifugation or centrifugation at RT, compared to 4ºC, led to higher Aβ42 levels. Reducing CSF storage volume from 75% to 50% of total tube capacity, decreased Aβ42 concentration (within analytical CV of the assay, whereas no change in Tau or pTau was observed. Moreover, the concentration of Tau and pTau appears to be stable up to 5 freeze-thaw cycles, whereas Aβ42 levels decrease if CSF is freeze-thawed more than 3 times. This systematic study reinforces the need for CSF centrifugation at 4ºC prior to storage and highlights the influence of storage conditions in Aβ42 levels. This study contributes to the establishment of harmonized standard operating procedures that will help reducing inter-lab variability of CSF

  6. Analytical methodologies for metallomics studies of antitumor Pt-containing drugs.

    Science.gov (United States)

    Esteban-Fernández, Diego; Moreno-Gordaliza, Estefanía; Cañas, Benito; Palacios, María Antonia; Gómez-Gómez, María Milagros

    2010-01-01

    Pt-containing drugs are nowadays essential components in cancer chemotherapy. However, drug resistance and side effects limit the efficiency of the treatments. In order to improve the response to Pt-based drugs, different administration strategies or new Pt-compounds have been developed with little success. The reason for this failure could be that the mechanism of action of these drugs is not completely understood. In this way, metallomics studies may contribute to clarify the interactions of Pt-containing drugs within the organism. This review is mainly focused on the role of Analytical Chemistry on the study of the interactions between Pt-based drugs and biomolecules. A summary of the analytical techniques and the most common sample treatment procedures currently used in metallomics studies of these drugs is presented. Both are of paramount importance to study these complex samples preserving the drug-biomolecule interaction. Separation and detection techniques must be carefully selected in order to achieve the intended goals. The use of multidimensional hyphenated techniques is usually necessary for a better understanding of the Pt-based drugs interactions in the organism. An overview of Pt-drugs biological interactions is presented, considering the different sample matrices and the drugs course through the organism. Samples analysed in the included studies are blood, urine, cell cytosol, DNA as well as the drugs themselves and their derivatives. However, most of these works are based on in vitro experiments or incubations of standards, leading in some cases to contradictory results depending on the experimental conditions used. Though in vivo experiments represent a great challenge due to the high complexity and the low concentrations of the Pt-adducts in real samples, these studies must be undertaken to get a deeper understanding of the real interactions concerning Pt-containing drugs.

  7. Malaysia water services reform: legislative issues

    Directory of Open Access Journals (Sweden)

    Nabsiah Abdul Wahid

    2014-08-01

    or process. The fact that upon independence in 1957 the Malaysian constitution accorded separate jurisdiction for the state and federal authorities on land and water issues has given rise to various points of contention when dealing with water policy reform, particularly the role, power and ownership of water resources between the state and the federal governments. In conclusion, the problems observed in Malaysia’s water services industry reform are mainly with regard to legislation. In-depth analysis of how the SPAN Act and WSIA impact available legislation and how these legislations can create an integrated water resource management system that works on both Federal and State levels are crucial. It is thus fundamental for legal regimes for water resources to support the legal regimes for water services. Only then, will the Federal government be able to take appropriate steps in restructuring the country’s water governance in its entirety. Acknowledgement The authors acknowledge the research grant provided by the Ministry of Education Malaysia under the Long Term Research Grant Scheme (LRGS 203/PKT/6726002 and those who have took part and provided us with information for this study. The authors also thank the panel of reviewers who provided us with constructive comments in the preparation of this commentary.

  8. An analytical study on the static vertical stiffness of wire rope isolators

    Energy Technology Data Exchange (ETDEWEB)

    Balaji, P. S.; Rahman, M. E.; Ho, Lau Hieng [Curtin University Sarawak, Miri (Malaysia); Moussa, Leblouba [University of Sharjah, Sharjah (United Arab Emirates)

    2016-01-15

    The vibrations caused by earthquake ground motions or the operations of heavy machineries can affect the functionality of equipment and cause damages to the hosting structures and surrounding equipment. A Wire rope isolator (WRI), which is a type of passive isolator known to be effective in isolating shocks and vibrations, can be used for vibration isolation of lightweight structures and equipment. The primary advantage of the WRI is that it can provide isolation in all three planes and in any orientation. The load-supporting capability of the WRI is identified from the static stiffness in the loading direction. Static stiffness mainly depends on the geometrical and material properties of the WRI. This study develops an analytical model for the static stiffness in the vertical direction by using Castigliano's second theorem. The model is validated by using the experimental results obtained from a series of monotonic loading tests. The flexural rigidity of the wire ropes required in the model is obtained from the transverse bending test. Then, the analytical model is used to conduct a parametric analysis on the effects of wire rope diameter, width, height, and number of turns (loops) on vertical stiffness. The wire rope diameter influences stiffness more than the other geometric parameters. The developed model can be accurately used for the evaluation and design of WRIs.

  9. Environmental concentrations of engineered nanomaterials: review of modeling and analytical studies.

    Science.gov (United States)

    Gottschalk, Fadri; Sun, Tianyin; Nowack, Bernd

    2013-10-01

    Scientific consensus predicts that the worldwide use of engineered nanomaterials (ENM) leads to their release into the environment. We reviewed the available literature concerning environmental concentrations of six ENMs (TiO2, ZnO, Ag, fullerenes, CNT and CeO2) in surface waters, wastewater treatment plant effluents, biosolids, sediments, soils and air. Presently, a dozen modeling studies provide environmental concentrations for ENM and a handful of analytical works can be used as basis for a preliminary validation. There are still major knowledge gaps (e.g. on ENM production, application and release) that affect the modeled values, but over all an agreement on the order of magnitude of the environmental concentrations can be reached. True validation of the modeled values is difficult because trace analytical methods that are specific for ENM detection and quantification are not available. The modeled and measured results are not always comparable due to the different forms and sizes of particles that these two approaches target.

  10. Analytical Study on Inherent Properties of a Unidirectional Vibrating Steel Strip Partially Immersed in Fluid

    Directory of Open Access Journals (Sweden)

    J. Li

    2013-01-01

    Full Text Available The theory of singuarity functions is introduced to present an analytical approach for the natural properties of a unidirectional vibrating steel strip with two opposite edges simply supported and other two free, partially submerged in fluid and under tension. The velocity potential and Bernoulli's equation are used to describe the fluid pressure acting on the steel strip. The effect of fluid on vibrations of the strip may be equivalent to added mass of the strip. The math formula of added mass can be obtained from kinematic boundary conditions of the strip-fluid interfaces. Singularity functions are adopted to solve problems of the strip with discontinuous characteristics. By applying Laplace transforms, analytical solutions for inherent properties of the vibrating steel strip in contact with fluid are finally acquired. An example is given to illustrate that the proposed method matches the numerical solution using the finite element method (FEM very closely. The results show that fluid has strong effect on natural frequencies and mode shapes of vibrating steel strips partially dipped into a liquid. The influences such as tension, the submergence depth, the position of strip in the container and the dimension of the container on the dynamic behavior of the strip are also investigated. Moreover, the presented method can also be used to study vertical or angled plates with discontinuous characteristics as well as different types of pressure fields around.

  11. Study of Gaussian and Bessel beam propagation using a new analytic approach

    Science.gov (United States)

    Dartora, C. A.; Nobrega, K. Z.

    2012-03-01

    The main feature of Bessel beams realized in practice is their ability to resist diffractive effects over distances exceeding the usual diffraction length. The theory and experimental demonstration of such waves can be traced back to the seminal work of Durnin and co-workers already in 1987. Despite that fact, to the best of our knowledge, the study of propagation of apertured Bessel beams found no solution in closed analytic form and it often leads to the numerical evaluation of diffraction integrals, which can be very awkward. In the context of paraxial optics, wave propagation in lossless media is described by an equation similar to the non-relativistic Schrödinger equation of quantum mechanics, but replacing the time t in quantum mechanics by the longitudinal coordinate z. Thus, the same mathematical methods can be employed in both cases. Using Bessel functions of the first kind as basis functions in a Hilbert space, here we present a new approach where it is possible to expand the optical wave field in a series, allowing to obtain analytic expressions for the propagation of any given initial field distribution. To demonstrate the robustness of the method two cases were taken into account: Gaussian and zeroth-order Bessel beam propagation.

  12. Assessment the Relationship between Parents' Literacy Level with Children Growth in Mashhad: An Analytic Descriptive Study

    Directory of Open Access Journals (Sweden)

    Bibi Leila Hoseini

    2014-04-01

    Full Text Available Introduction: Present children are the investments of community in the future. Preparing children health which leads to the stability of community health, provided to accurate implementation of educational and health programs in the community and especially in mothers. So it is necessary to determine the relationship between parents' literacy with growth rate in children.   Materials and Methods: This cross-sectional descriptive-analytic study was conducted on 300 mothers referring to 10 selected Mashhad health-care centers for monitoring their 6-24-month year old infants. They completed questionnaire. Participants were selected by cluster and simple random sampling. Data were analyzed by descriptive- analytic statistics and using SPSS 16.   Results: Presentfindings showed a significant relationship between literacy  level of parents with child growth status, breast feeding rate, junk food consumption, referring to health care center for growth monitoring, the age of initiating supplementary nutrition, the use of oil and butter in baby food and rate of attending in educational classes. So that higher literacy  level of parents was associated with using more formula, less junk food, oil and butter in baby's food and more referring times to health care center for monitoring child growth, desirable growth, and  also initiating supplementary food more at the assigned time (P

  13. Assessment the Relationship Between Parents' Literacy Level with Children Growth in Mashhad: An Analytic Descriptive Study

    Directory of Open Access Journals (Sweden)

    Masumeh Saeidi

    2013-12-01

    Full Text Available Introduction: Present children are the investments of community in the future. Preparing children health which leads to the stability of community health, provided to accurate implementation of educational and health programs in the community and especially in mothers. So it is necessary to determine the relationship between parents' literacy  with growth rate in children. Materials and Methods: This cross-sectional descriptive-analytic study was conducted on 300 mothers referring to 10 selected Mashhad health-care centers for monitoring their 6-24-month year old infants. They completed questionnaire. Participants were selected by cluster and simple random sampling. Data were analyzed by descriptive- analytic statistics and using SPSS 16. Results: Presentfindings showed a significant relationship between literacy  level of parents with child growth status, breast feeding rate, junk food consumption, referring to health care center for growth monitoring, the age of initiating supplementary nutrition, the use of oil and butter in baby food and rate of attending in educational classes. So that higher literacy  level of parents was associated with using more formula, less junk food, oil and butter in baby's food and more referring times to health care center for monitoring child growth, desirable growth, and  also initiating supplementary food more at the assigned time (p

  14. Study on the Analytical Behaviour of Concrete Structure Against Local Impact of Hard Missile

    Directory of Open Access Journals (Sweden)

    Ahmad Mujahid Ahmad Zaidi

    2011-07-01

    Full Text Available Concrete is basic construction material used for almost all kind of structure. However, in the majority essential structures such as nuclear plants, Power plants, Weapon Industries, weapons storage places, water retaining structures like dams, highways barriers, bridges, & etc., concrete structures have to be designed as self-protective structure which can afford any disaster or consciously engendered unpleasant incidents such as incident occurs in nuclear plants, incident in any essential industry, terrorist attack, Natural disasters like tsunami and etc missile attack, and local impact damage generated by kinetic missiles dynamic loading (steel rods, steel pipes, turbine blades, etc.. This paper inquisitively is paying attention on verdict of the recent development in formulating analytical behavior of concrete and reinforced concrete structures against local impact effect generated by hard missile with and without the influence of dimensional analysis based on dominant non-dimensional parameters, various nose shape factors at normal and certain inclined oblique angles. The paper comprises the analytical models and methods for predicting penetration, and perforation of concrete and reinforced concrete. The fallout conquer from this study can be used for making design counsel and design procedures for seminal the dynamic retort of the concrete targets to foil local impact damage.

  15. An analytical study of PPP-RTK corrections: precision, correlation and user-impact

    Science.gov (United States)

    Khodabandeh, A.; Teunissen, P. J. G.

    2015-11-01

    PPP-RTK extends the PPP concept by providing single-receiver users, next to orbits and clocks, also information about the satellite phase and code biases, thus enabling single-receiver ambiguity resolution. It is the goal of the present contribution to provide an analytical study of the quality of the PPP-RTK corrections as well as of their impact on the user ambiguity resolution performance. We consider the geometry-free and the geometry-based network derived corrections, as well as the impact of network ambiguity resolution on these corrections. Next to the insight that is provided by the analytical solutions, the closed form expressions of the variance matrices also demonstrate how the corrections depend on network parameters such as number of epochs, number of stations, number of satellites, and number of frequencies. As a result we are able to describe in a qualitative sense how the user ambiguity resolution performance is driven by the data from the different network scenarios.

  16. Analytical study of Yang-Mills theory in the infrared from first principles

    CERN Document Server

    Siringo, Fabio

    2015-01-01

    Pure Yang-Mills SU(N) theory is studied in the Landau gauge and four dimensional space. While leaving the original Lagrangian unmodified, a double perturbative expansion is devised, based on a massive free-particle propagator. In dimensional regularization, all diverging mass terms cancel exactly in the double expansion, without the need to include mass counterterms that would spoil the symmetry of the Lagrangian. No free parameters are included that were not in the original theory, yielding a fully analytical approach from first principles. The expansion is safe in the infrared and is equivalent to the standard perturbation theory in the UV. At one-loop, explicit analytical expressions are given for the propagators and the running coupling and are found in excellent agreement with the data of lattice simulations. A universal scaling property is predicted for the inverse propagators and shown to be satisfied by the lattice data. Higher loops are found to be negligible in the infrared below 300 MeV where the c...

  17. Preparation, Analytical, IR Spectral, and Thermal Studies of Some New Hydrazinium Carboxylates

    Directory of Open Access Journals (Sweden)

    R. Manimekalai

    2012-01-01

    Full Text Available Hydrazinium salts of 2,4-dichlorophenylacetic acid, phenoxyacetic acid, 2,4-dichlorophenoxyacetic acid, diphenylacetic acid, cinnamic acid, and picolinic and nicotinic acids have been prepared by accomplishing neutralization of aqueous hydrazine hydrate with the respective acids. Formation of these hydrazinium salts has been confirmed by analytical, IR spectral, and thermal studies. IR spectra of the salts register N–N stretching frequencies of ion in the region 963–951 cm−1 and the frequencies of ion in the region 1047–1026 cm−1. Thermal decomposition studies show that the hydrazinium salts undergo melting followed by endothermic decomposition into carbon residue as the endproduct.

  18. Semi-analytical fluid study of the laser wake field excitation in the strong intensity regime

    Energy Technology Data Exchange (ETDEWEB)

    Jovanović, D., E-mail: djovanov@ipb.ac.rs [Institute of Physics, University of Belgrade, Belgrade (Serbia); Fedele, R., E-mail: renato.fedele@na.infn.it [Dipartimento di Fisica, Universitá di Napoli Federico II, Napoli (Italy); INFN Sezione di Napoli, Napoli (Italy); Belić, M., E-mail: milivoj.belic@qatar.tamu.edu [Texas A & M University at Qatar, Doha (Qatar); De Nicola, S., E-mail: sergio.denicola@spin.cnr.it [Dipartimento di Fisica, Universitá di Napoli Federico II, Napoli (Italy); INFN Sezione di Napoli, Napoli (Italy); CNR-SPIN, Complesso Universitario di Monte S' Angelo, Napoli (Italy)

    2016-09-01

    We present an analytical and numerical study of the interaction of a multi-petawatt, pancake-shaped laser pulse with an unmagnetized plasma. The study has been performed in the ultrarelativistic regime of electron jitter velocities, in which the plasma electrons are almost completely expelled from the pulse region. The calculations are applied to a laser wake field acceleration scheme with specifications that may be available in the next generation of Ti:Sa lasers and with the use of recently developed pulse compression techniques. A set of novel nonlinear equations is derived using a three-timescale description, with an intermediate timescale associated with the nonlinear phase of the electromagnetic wave and with the spatial bending of its wave front. They describe, on an equal footing, both the strong and the moderate laser intensity regimes, pertinent to the core and to the edges of the pulse.

  19. Feature-resolved computational and analytical study of laminar drag reduction by superhydrophobic surfaces

    Science.gov (United States)

    Li, Yixuan; Alame, Karim; Mahesh, Krishnan

    2017-05-01

    Direct numerical simulations are used to study the drag reduction by superhydrophobic surfaces in laminar channel flow. Resolved multiphase simulations using the volume of fluid methodology are performed to study the effects of groove geometry, interface shear rate, and meniscus penetration independently. An analytical solution for the flow in a laminar channel with a grooved surface with a gas pocket within is obtained. The solution accounts for both the groove geometry and the trapped fluid properties, and shows good agreement with simulation results. The solution is used to propose a scaling law that collapses data across fully wetted to fully gas-filled regimes. The trapped gas is simulated as both flat and meniscal interfaces. The drag reduction initially increases with interface deflection into the groove and then decreases for large deflections as the interface velocity approaches zero due to the proximity to the bottom of the groove.

  20. Analytical study of the liquid phase transient behavior of a high temperature heat pipe

    Science.gov (United States)

    Roche, Gregory Lawrence

    1988-09-01

    The transient operation of the liquid phase of a high temperature heat pipe is studied. The study was conducted in support of advanced heat pipe applications that require reliable transport of high temperature drops and significant distances under a broad spectrum of operating conditions. The heat pipe configuration studied consists of a sealed cylindrical enclosure containing a capillary wick structure and sodium working fluid. The wick is an annular flow channel configuration formed between the enclosure interior wall and a concentric cylindrical tube of fine pore screen. The study approach is analytical through the solution of the governing equations. The energy equation is solved over the pipe wall and liquid region using the finite difference Peaceman-Rachford alternating direction implicit numerical method. The continuity and momentum equations are solved over the liquid region by the integral method. The energy equation and liquid dynamics equation are tightly coupled due to the phase change process at the liquid-vapor interface. A kinetic theory model is used to define the phase change process in terms of the temperature jump between the liquid-vapor surface and the bulk vapor. Extensive auxiliary relations, including sodium properties as functions of temperature, are used to close the analytical system. The solution procedure is implemented in a FORTRAN algorithm with some optimization features to take advantage of the IBM System/370 Model 3090 vectorization facility. The code was intended for coupling to a vapor phase algorithm so that the entire heat pipe problem could be solved. As a test of code capabilities, the vapor phase was approximated in a simple manner.

  1. The comparative study on analytical solutions and numerical solutions of displacement in transversely isotropic rock mass

    Science.gov (United States)

    Zhang, Zhizeng; Zhao, Zhao; Li, Yongtao

    2016-06-01

    This paper attempts to verify the correctness of the analytical displacement solution in transversely isotropic rock mass, and to determine the scope of its application. The analytical displacement solution of a circular tunnel in transversely isotropic rock mass was derived firstly. The analytical solution was compared with the numerical solution, which was carried out by FLAC3D software. The results show that the expression of the analytical displacement solution is correct, and the allowable engineering range is that the dip angle is less than 15 degrees.

  2. Feasibility of digital footprint data for health analytics and services: an explorative pilot study.

    Science.gov (United States)

    Harjumaa, Marja; Saraniemi, Saila; Pekkarinen, Saara; Lappi, Minna; Similä, Heidi; Isomursu, Minna

    2016-11-09

    As a result of digitalization, data is available about almost every aspect of our lives. Personal data collected by individuals themselves or stored by organizations interacting with people is known as a digital footprint. The purpose of this study was to identify prerequisites for collecting and using digital data that could be valuable for health data analytics and new health services. Researchers and their contacts involved in a nationwide research project focusing on digital health in Finland were asked to participate in a pilot study on collecting their own personal data from various organizations of their own choice, such as retail chains, banks, insurance companies, and healthcare providers. After the pilot, a qualitative inquiry was adopted to collect semi-structured interview data from twelve active participants in the pilot. Interviews comprised themes such as the experiences of collecting personal data, as well as the usefulness of the data in general and for the participants themselves. Interview data was then analyzed thematically. Even if the participants had an academic background and were highly motivated to collect and use their data, they faced many challenges, such as quite long delays in the provision of the data, and the unresponsiveness of some organizations. Regarding the usefulness of the acquired personal data, our results show that participants had high expectations, but they were disappointed with the small amount of data and its irrelevant content. For the most part, the data was not in a format that would be useful for health data analytics and new health services. Participants also found that there were actual mistakes in their health data reports. The study revealed that collecting and using digital footprint data, even by knowledgeable individuals, is not an easy task. As the usefulness of the acquired personal health data mainly depended on its form and usability for services or solutions relevant to an individual, rather than on

  3. Analytical and numerical studies of photo-injected charge transport in molecularly-doped polymers

    Science.gov (United States)

    Roy Chowdhury, Amrita

    The mobility of photo-injected charge carriers in molecularly-doped polymers (MDPs) exhibits a commonly observed, and nearly universal Poole-Frenkel field dependence, mu exp√(beta0E), that has been shown to arise from the correlated Gaussian energy distribution of transport sites encountered by charges undergoing hopping transport through the material. Analytical and numerical studies of photo-injected charge transport in these materials are presented here with an attempt to understand how specific features of the various models developed to describe these systems depend on the microscopic parameters that define them. Specifically, previously published time-of-flight mobility data for the molecularly doped polymer 30% DEH:PC (polycarbonate doped with 30 wt.% aromatic hydrazone DEH) is compared with direct analytical and numerical predictions of five disorder-based models, the Gaussian disorder model (GDM) of Bassler, and four correlated disorder models introduced by Novikov, et al., and by Parris, et al. In these numerical studies, disorder parameters describing each model were varied from reasonable starting conditions, in order to give the best overall fit. The uncorrelated GDM describes the Poole-Frenkel field dependence of the mobility only at very high fields, but fails for fields lower than about 64 V/mum. The correlated disorder models with small amounts of geometrical disorder do a good over-all job of reproducing a robust Poole-Frenkel field dependence, with correlated disorder theories that employ polaron transition rates showing qualitatively better agreement with experiment than those that employ Miller-Abrahams rates. In a separate study, the heuristic treatment of spatial or geometric disorder incorporated in existing theories is critiqued, and a randomly-diluted lattice gas model is developed to describe the spatial disorder of the transport sites in a more realistic way.

  4. The Comparison of Experimental and Analytical Study of the Gaussian IntensityDistribution for Light Emitting Diodes Beam

    Directory of Open Access Journals (Sweden)

    Harry Ramza

    2012-01-01

    Full Text Available Problem statement: Wireless communication using white Light Emitting Diodes (LEDs is the latest research field for next-generation communication. This study studies the comparison of Gaussian intensity distribution of the white LED using experimental and analytical method. The white LEDs are conducted to transmit an audio signal to the receiver. The receiver circuit consist of solar cell connected to the speaker to recover the audio signal. From the comparison of experimental and analytical data, the Gaussian plot of experimental data is steeper than the analytical data, meaning that the LED has small-divergence beam. Conclusion/Recommendations: The output voltage of experimental works decrease exponentially with the distance whiles the Full Width Half Maximum (FWHM value increase exponentially with the distance. The gradual increment and decrement of the analytical signal can be applicable to visible light communication implementation as such light source can cover wide area for signal transmission.

  5. Isolation, analytical measurements, and cell line studies of the iron-bryostatin-1 complex.

    Science.gov (United States)

    Plummer, Sydney; Manning, Thomas; Baker, Tess; McGreggor, Tysheon; Patel, Mehulkumar; Wylie, Greg; Phillips, Dennis

    2016-05-15

    Bryostatin-1 is a marine natural product that has demonstrated medicinal activity in pre-clinical and clinical trials for the treatment of cancer, Alzheimer's disease, effects of stroke, and HIV. In this study, iron-bryostatin-1 was obtained using a pharmaceutical aquaculture technique developed by our lab that cultivates marine bacteria for marine natural product extraction. Analytical measurements (1)H and (13)C NMR, mass spectrometry, and flame atomic absorption were utilized to confirm the presence of an iron-bryostatin-1 complex. The iron-bryostatin-1 complex produced was then tested against the National Cancer Institute's 60 cell line panel. Adding iron to bryostatin-1 lowered the anti-cancer efficacy of the compound. Copyright © 2016 Elsevier Ltd. All rights reserved.

  6. An analytical study of seismoelectric signals produced by 1D mesoscopic heterogeneities

    CERN Document Server

    Monachesi, Leonardo B; Rosas-Carbajal, Marina; Jougnot, Damien; Linde, Niklas; Quintal, Beatriz; Holliger, Klaus

    2015-01-01

    The presence of mesoscopic heterogeneities in fluid-saturated porous rocks can produce measurable seismoelectric signals due to wave-induced fluid flow between regions of differing compressibility. The dependence of these signals on the petrophysical and structural characteristics of the probed rock mass remains largely unexplored. In this work, we derive an analytical solution to describe the seismoelectric response of a rock sample, containing a horizontal layer at its center, that is subjected to an oscillatory compressibility test. We then adapt this general solution to compute the seismoelectric signature of a particular case related to a sample that is permeated by a horizontal fracture located at its center. Analyses of the general and particular solutions are performed to study the impact of different petrophysical and structural parameters on the seismoelectric response. We find that the amplitude of the seismoelectric signal is directly proportional to the applied stress, to the Skempton coefficient...

  7. Group-analytic training groups for psychology students: A qualitative study

    DEFF Research Database (Denmark)

    Nathan, Vibeke Torpe; Poulsen, Stig

    2004-01-01

    This article presents results from an interview study of psychology students' experiences from group-analytic groups conducted at the University of Copenhagen. The primary foci are the significance of differences in themotivation participants'  personal aims of individual participantsfor...... participation in the group, the impact of the composition of participants on the group process, and the professional learning through the group experience. In general the interviews show a marked satisfaction with the group participation. In particular, learning about the importance of group boundaries...... and about being in the dual position of both helper and client is seen as important. However the fact that all group members are fellow students is challenging to the participants....

  8. Analytical Ultracentrifugation as a Tool to Study Nonspecific Protein–DNA Interactions

    Science.gov (United States)

    Yang, Teng-Chieh; Catalano, Carlos Enrique; Maluf, Nasib Karl

    2016-01-01

    Analytical ultracentrifugation (AUC) is a powerful tool that can provide thermodynamic information on associating systems. Here, we discuss how to use the two fundamental AUC applications, sedimentation velocity (SV), and sedimentation equilibrium (SE), to study nonspecific protein–nucleic acid interactions, with a special emphasis on how to analyze the experimental data to extract thermodynamic information. We discuss three specific applications of this approach: (i) determination of nonspecific binding stoichiometry of E. coli integration host factor protein to dsDNA, (ii) characterization of nonspecific binding properties of Adenoviral IVa2 protein to dsDNA using SE-AUC, and (iii) analysis of the competition between specific and nonspecific DNA-binding interactions observed for E. coli integration host factor protein assembly on dsDNA. These approaches provide powerful tools that allow thermodynamic interrogation and thus a mechanistic understanding of how proteins bind nucleic acids by both specific and nonspecific interactions. PMID:26412658

  9. Analytic and laser vibrometry study of squeeze film damping of MEMS cantilevers

    Science.gov (United States)

    Vignola, Joseph F.; Judge, John A.; Lawrence, Eric; Jarzynski, Jacek; Houston, Brian

    2006-06-01

    This study compares theoretical predictions to experimental measurements of squeeze film damping of MEMS cantilevers in a fluid environment. A series of MEMS cantilevers were fabricated on a silicon wafer. Each of the silicon beams was 2 μm thick and 18 μm wide. The lengths range from 100 to 800 μm and the air-filled gap between the cantilever and the substrate was 6 μm. An analytic model for squeeze film damping was used to predict the corresponding quality factor Q squeeze film (the ratio of the mechanical energy stored in the oscillator to the energy dissipated per cycle) for these cantilevers. The results from the modeling are compared to experimental results obtained using a Polytec MSA-400 Micro System Analyzer.

  10. Velocity centroids and the structure of interstellar turbulence: I. Analytical study

    CERN Document Server

    Levrier, F

    2004-01-01

    We present an analytical study of the statistical properties of integrated emission and velocity centroids for a slightly compressible turbulent slab model, to retrieve the underlying statistics of three-dimensional density and velocity fluctuations. Under the assumptions that the density and velocity fields are homogeneous and isotropic, we derive the expressions of the antenna temperature for an optically thin spectral line observation, and of its successive moments with respect to the line of sight velocity component, focusing on the zeroth (intensity or integrated emission I) and first (non-normalized velocity centroid C) moments. The ratio of the latter to the former is the normalized centroid C_0, whose expression can be linearized for small density fluctuations. To describe the statistics of I, C and C_0, we derive expansions of their autocorrelation functions in powers of density fluctuations and perform a lowest-order real-space calculation of their scaling behaviour, assuming that the density and ve...

  11. PROJECTION TRANSFORMATION METHODS APPLIED TO THE REPRESENTATION OF MECHANICAL PARTS. COMPARATIVE GRAPHICAL AND ANALYTICAL STUDY

    Directory of Open Access Journals (Sweden)

    ORBAN Magdalena

    2015-06-01

    Full Text Available The paper presents a comparative graphical and analytical study concerning the possibility of applying methods of transforming the projection – rotation and change of projection planes - for determination of spatial image of some machine parts whose edges or plane faces form imposed angles with the projection planes. An analysis of the existing relation between the two methods respectively with the axonometric representation realized by the coordinate’s method is also performed, highlighting the advantages presented by each of the considered methods. In both cases, the double rotation, respectively the double change of projection planes will be applied, equivalent to an intuitive axonometric representation which will meet, at the same time, some concrete requirements of a project.

  12. Analytical Study on the Beyond Design Seismic Capacity of Reinforced Concrete Shear Walls

    Energy Technology Data Exchange (ETDEWEB)

    Nugroho, Tino Sawaldi Adi [Korea Advanced Institute of Science and Technology, Daejeon (Korea, Republic of); Chi, Ho-Seok [Korea Institute of Nuclear Safety, Daejeon (Korea, Republic of)

    2015-10-15

    The OECD-NEA has organized an international benchmarking program to better understand this critical issue. The benchmark program provides test specimen geometry, test setup, material properties, loading conditions, recorded measures, and observations of the test specimens. The main objective of this research is to assess the beyond design seismic capacity of the reinforced concrete shear walls tested at the European Laboratory for Structural Assessment between 1997 and 1998 through participation in the OECD-NEA benchmark program. In this study, assessing the beyond design seismic capacity of reinforced concrete shear walls is performed analytically by comparing numerical results with experimental results. The seismic shear capacity of the reinforced concrete shear wall was predicted reasonably well using ABAQUS program. However, the proper calibration of the concrete material model was necessary for better prediction of the behavior of the reinforced concrete shear walls since the response was influenced significantly by the material constitutive model.

  13. Heuristic and analytic processes in reasoning: an event-related potential study of belief bias.

    Science.gov (United States)

    Banks, Adrian P; Hope, Christopher

    2014-03-01

    Human reasoning involves both heuristic and analytic processes. This study of belief bias in relational reasoning investigated whether the two processes occur serially or in parallel. Participants evaluated the validity of problems in which the conclusions were either logically valid or invalid and either believable or unbelievable. Problems in which the conclusions presented a conflict between the logically valid response and the believable response elicited a more positive P3 than problems in which there was no conflict. This shows that P3 is influenced by the interaction of belief and logic rather than either of these factors on its own. These findings indicate that belief and logic influence reasoning at the same time, supporting models in which belief-based and logical evaluations occur in parallel but not theories in which belief-based heuristic evaluations precede logical analysis.

  14. A perturbative study on the analytic continuation for generalized gravitational entropy

    CERN Document Server

    Prudenziati, Andrea

    2014-01-01

    We study the analytic continuation used by Lewkowycz and Maldacena to prove the Ryu-Takayanagi formula for entanglement entropy, which is the holographic dual of the trace of the $\\beta$-power of the time evolution operator when $\\beta\\in \\mathbb{R}$. This will be done perturbatively by using a weakly time dependent Hamiltonian, corresponding to a small shift of the dual static background. Depending on the periodicity we impose on the gravitational solution, we consider two different possibilities and compare the associated entropies with the results obtained through a minimal area computation. To our surprise we discover that, at first order, both choices correctly reproduce the associated entanglement entropy. Furthermore we find unexpected divergent contributions that we have to discard in order to fit the minimal area computation, and an additional requirement that needs to be imposed on the $\\beta$ dependence on the metric.

  15. The impact of the treaty basis on health policy legislation in the European Union: a case study on the tobacco advertising directive.

    Science.gov (United States)

    Boessen, Sandra; Maarse, Hans

    2008-04-08

    The Europe Against Cancer programme was initiated in the late 1980s, recognising, among other risk factors, the problematic relationship between tobacco use and cancer. In an attempt to reduce the number of smokers in the European Community, the European Commission proposed a ban on tobacco advertising. The question of why it took over ten years of negotiating before the EU adopted a policy measure that could in fact improve the health situation in the Community, can only be answered by focusing on politics. We used an actor-centred institutionalist approach, focusing on the strategic behaviour of the major actors involved. We concentrated our analysis on the legal basis as an important institution and evaluated how the absence of a proper legal basis for public health measures in the Treaties influenced policy-making, framing the discussion in market-making versus market-correcting policy interventions. For our analysis, we used primary and secondary sources, including policy documents, communications and press releases. We also conducted 9 semi-structured interviews. The ban on tobacco advertising was, in essence, a public health measure. The Commission used its agenda-setting power and framed the market-correcting proposal in market-making terms. The European Parliament and the Council of Ministers then used the discussion on the legal basis as a vehicle for real political controversies. After adoption of the ban on tobacco advertising, Germany appealed to the European Court of Justice, which annulled the ban but also offered suggestions for a possible solution with article 100a as the legal basis. The whole market-making versus market-correcting discussion is related to a broader question, namely how far European health regulation can go in respect to the member states. In fact, the policy-making process of a tobacco advertising ban, as described in this paper, is related to the 'constitutional' foundation of health policy legislation in the Community. The

  16. The impact of the treaty basis on health policy legislation in the European Union: A case study on the tobacco advertising directive

    Directory of Open Access Journals (Sweden)

    Maarse Hans

    2008-04-01

    ' foundation of health policy legislation in the Community. The absence of a clear-cut legal basis for health policies does not imply that the EU's impact on health is negligible. In the case of tobacco-control measures, the creative use of other Treaty bases has resulted in significant European action in the field of public health.

  17. Analytical electron microscope study of the omega phase transformation in a zirconium--niobium alloy

    Energy Technology Data Exchange (ETDEWEB)

    Zaluzec, N.J.

    1979-06-01

    An in-situ study of the as-quenched omega phase transformation in Zr--15% Nb was conducted between the temperatures of 77 and 300/sup 0/K using analytical electron microscopy. The domain size of the omega regions observed in this investigation was on the order of 30 A, consistent with previous observations in this system. No alignment of omega domains along <222> directions of the bcc lattice was observed and in-situ thermal cycling experiments failed to produce a long period structure of alternating ..beta.. and ..omega.. phase regions as predicted by one theory of this transformation. Several techniques of microstructural analysis were developed, refined, and standardized. Grouped under the general classification of Analytical Electron Microscopy (AEM) they provide the experimentalist with a unique tool for the microcharacterization of solids, allowing semiquantitative to quantitative analysis of the morphology, crystallography, elemental composition, and electronic structure of regions as small as 20 A in diameter. These techniques have complications, and it was necessary to study the AEM system used in this work so that instrumental artifacts which invalidate the information produced in the microscope environment might be eliminated. Once these factors had been corrected, it was possible to obtain a wealth of information about the microvolume of material under investigation. The microanalytical techniques employed during this research include: energy dispersive x-ray spectroscopy (EDS) using both conventional and scanning transmission electron microscopy (CTEM, STEM), transmission scanning electron diffraction (TSED), the stationary diffraction pattern technique, and electron energy loss spectroscopy (ELS) using a dedicated scanning transmission electron microscope (DSTEM).

  18. Analytical techniques for sesquiterpene emission rate studies in vegetation enclosure experiments

    Science.gov (United States)

    Helmig, Detlev; Bocquet, Florence; Pollmann, Jan; Revermann, Tobias

    Sesquiterpene (SQT) compounds (C 15H 24) and their oxygenated alcohol and ketone derivatives are biogenic volatile organic compounds that have been identified in emissions from vegetation. SQT emission rates and landscape flux estimates are highly uncertain. Reliable ambient flux measurements have not been possible because of low-ambient concentrations, rapid atmospheric reactions (prohibiting ambient tower flux measurements), and analytical challenges and uncertainties that stem from the low volatility of SQT. Standards from an in situ capillary diffusion system with 18 SQT compounds and four other organic compounds (geranylacetone, 1,3,5-tri-isopropylbenzene, diphenylmethane, nonylbenzene) were used to thoroughly investigate experimental procedures for SQT emission rate studies by vegetation enclosure techniques. Recovery rates in tubing materials, sampling bags, leaf cuvettes, on six solid adsorbent materials (Tenax TA, Tenax GR, Carbotrap, Carbotrap C, Unibeads, Glass Beads) for gas chromatography analysis, and gas chromatography retention indices and mass spectral fragmentation patterns were determined. SQT compounds were found to exhibit a high degree of stickiness to all materials tested. However, the non-oxygenated SQT can be recovered in enclosure experiments for quantitative emission rate determination after careful consideration of the analytical conditions. It is utmost important to allow sufficient purging and equilibration times for all materials in contact with the sample air. In contrast oxygenated SQT were irreversibly lost in enclosure experiments which made their quantitative measurement prohibitive. Results for the other organic compounds were similar and indicate that these data mostly stem from the volatility of these compounds. Consequently, the findings of this study provide guidelines for the analysis of a wide range of volatile organic compounds in the ˜C13-C17 volatility range.

  19. Constituent contacts can influence how legislators vote

    OpenAIRE

    2015-01-01

    Does calling your legislator actually lead to results for those who are passionately for or against\\ud certain legislation? In new research, using a randomized field experiment, Daniel Bergan finds\\ud that it does. Those legislators who received at least one phone call from a constituent asking\\ud them to support a certain bill were 11-12 percent more likely to support the legislation, an effect\\ud independent of the legislators’ party, gender or the competitiveness of their district.

  20. Juvenile prison in parallel legislation

    Directory of Open Access Journals (Sweden)

    Lutovac Mitar

    2016-01-01

    Full Text Available The need for punishment of juveniles occurred from the time when there was no clear line separating them from the adult criminal population. At the same time, the evolution of the juvenile punishment is not in itself involve substantial changes to their criminal status. On the contrary, the status of minors in society did not show serious differences regarding the status of young adults, as well as the adult elderly. On the other hand, on the ground of their punishment is recorded deviations that go in the direction of application of mild corporal punishment. Closing the minor was performed in a physically separate parts of the general penal institutions with the use of a lower degree of restrictions while serving juvenile prison. Due to the different treatment of minors during the evolution of their criminal status leads to their different treatment in comparative law. That is why we are witnessing the existence of numerous differences in the juvenile punishment in some countries in the world. On the European continent there is a wide range of different legal solutions when it comes to punishing juveniles. There are considerable differences in the procedure pronouncing juvenile prison and in particular penal treatment of juveniles in penitentiary institutions. For these reasons, the author has decided to show the basic statutory provisions in the part that relates to the issue of punishment of minors in the legislation of individual countries.

  1. [Legislation on professional respiratory diseases].

    Science.gov (United States)

    Lezaun, M

    2005-01-01

    The legally protected occupational pathology consists of work accidents and occupational diseases. Diseases are considered to be occupational when there is a relationship of demonstrable causality between exposure to a determinate occupational risk and a specific disease. To facilitate recognition, different organisations (International Labour Organisation, European Community) draw up, update and recommend the use of lists that are voluntarily adopted by member states. In the case of the Spanish state, the system of the closed list has been adopted. The current list was published in 1978 and the system of notification and registration currently in use is in need of urgent reform, which has been started. It is frequently difficult to identify the work-related origin of occupational diseases and they are often treated in the public health care system without their relation to work being recognised. Knowledge of some basic aspects of the labour legislation by the health workers and the inclusion of a few questions during the anamnesis of patients would make their identification and adequate treatment possible.

  2. Factors Affecting Higher Order Thinking Skills of Students: A Meta-Analytic Structural Equation Modeling Study

    Science.gov (United States)

    Budsankom, Prayoonsri; Sawangboon, Tatsirin; Damrongpanit, Suntorapot; Chuensirimongkol, Jariya

    2015-01-01

    The purpose of the research is to develop and identify the validity of factors affecting higher order thinking skills (HOTS) of students. The thinking skills can be divided into three types: analytical, critical, and creative thinking. This analysis is done by applying the meta-analytic structural equation modeling (MASEM) based on a database of…

  3. Development and Validation of a Learning Analytics Framework: Two Case Studies Using Support Vector Machines

    Science.gov (United States)

    Ifenthaler, Dirk; Widanapathirana, Chathuranga

    2014-01-01

    Interest in collecting and mining large sets of educational data on student background and performance to conduct research on learning and instruction has developed as an area generally referred to as learning analytics. Higher education leaders are recognizing the value of learning analytics for improving not only learning and teaching but also…

  4. Factors Influencing Beliefs for Adoption of a Learning Analytics Tool: An Empirical Study

    Science.gov (United States)

    Ali, Liaqat; Asadi, Mohsen; Gasevic, Dragan; Jovanovic, Jelena; Hatala, Marek

    2013-01-01

    Present research and development offer various learning analytics tools providing insights into different aspects of learning processes. Adoption of a specific tool for practice is based on how its learning analytics are perceived by educators to support their pedagogical and organizational goals. In this paper, we propose and empirically validate…

  5. Differences in working memory involvement in analytical and creative tasks: an ERP study.

    Science.gov (United States)

    Lavric, A; Forstmeier, S; Rippon, G

    2000-06-01

    If, as suggested, creative (insight) problem solving is less systematic and employs less planning than analytical problem solving, the former requires substantially less working memory (WM) than the latter. Subjects simultaneously solved problems and counted auditory stimuli (concurrent WM task), in response to which ERPs were recorded. Counting disrupted analytical, but not creative performance. Peak and time-window average P300 were more frontal during analytical problem solving as compared to insight or counting tones only (control). A PCA extracted two factors in the P3 range, one frontal and one broad left-lateralized, which distinguished analytical from creative problem solving. The findings indicate distinct processing pathways for the two types of tasks with more WM involvement in analytical tasks.

  6. Study of experimental parameters for IRT applications in building elements using multi-layered analytical solutions

    Science.gov (United States)

    Serra, Catarina; Simões, Nuno; Tadeu, António

    2015-05-01

    This paper compares experimental and heat transfer modeling results for thermography applications in building elements. Over the years most building envelope inspections using infrared thermography (IRT) have been focused on qualitative analysis using mostly passive thermography techniques. However, increased need for the monitorization and assessment of the energy performance and thermal behavior of buildings, along with ongoing structural safety concerns, has raised interest in quantitative studies and active IRT applications in buildings. Numerous other fields have benefited from developments in defect detection studies and from countless non-destructive testing applications. Pulse phase thermography, in which phase images are studied (instead of temperature images) using a long heating pulse have been proposed to be the most effective for Civil Engineering applications. However, the particular characteristics of building elements and materials, along with the complex nature of heat transfer phenomena, demand specific experimental procedures and processing techniques. In this paper, analytical solutions to simulate heat transfer in the frequency domain in multi-layered media are used to compute thermal wave phase results. These are compared to experimental IRT phase analysis results of experiments performed on test specimens simulating building elements with embedded defects. Crucial test parameters such as test duration and defect characteristics are changed and their influence is studied. In this way, this paper contributes to the understanding of building envelope thermal patterns using active IRT in defect detection studies and to the definition of test parameters.

  7. Prevalence of risk factors for stuttering among boys: analytical cross-sectional study

    Directory of Open Access Journals (Sweden)

    Cristiane Moço Canhetti Oliveira

    Full Text Available CONTEXT AND OBJECTIVE:There have been few studies on the risk factors for subgroups of stuttering. The aim of this study was to characterize the risk factors for developmental familial stuttering among boys who stutter and who do not stutter, such as disfluency types, associated quality and communication factors, emotional and physical stress, familial attitudes and personal reactions.DESIGN AND SETTING:Analytical cross-sectional study with a control group, performed at the Fluency Studies Laboratory of the Department of Speech and Hearing Disorders of a public university.METHODS: The parents of 40 age-matched stuttering and non-stuttering boys took part in this study. The participants were divided into two groups: stuttering children (SC and non-stuttering children (NSC, with ages between 6 years 0 months and 11 years 11 months. Initially, all of the participants underwent a fluency assessment and then data were gathered using the Protocol for the Risk of Developmental Stuttering.RESULTS:There were no differences in the physical stress distribution factors and personal reactions between the groups. Inappropriate familial attitudes were presented by 95% of the SC and 30% of the NSC. Four risk factors analyzed were not shown by the NSC, namely stuttering-like disfluency, quality factors, physical stress and emotional stresses.CONCLUSIONS:The findings suggest that the presence of stuttering-like disfluency, associated quality and communication factors, emotional stress and inappropriate family attitudes are important risk factors for familial developmental stuttering among boys.

  8. Action Video Game Training for Healthy Adults: A Meta-Analytic Study.

    Science.gov (United States)

    Wang, Ping; Liu, Han-Hui; Zhu, Xing-Ting; Meng, Tian; Li, Hui-Jie; Zuo, Xi-Nian

    2016-01-01

    Action video game (AVG) has attracted increasing attention from both the public and from researchers. More and more studies found video game training improved a variety of cognitive functions. However, it remains controversial whether healthy adults can benefit from AVG training, and whether young and older adults benefit similarly from AVG training. In the present study, we aimed to quantitatively assess the AVG training effect on the cognitive ability of adults and to compare the training effects on young and older adults by conducting a meta-analysis on previous findings. We systematically searched video game training studies published between January 1986 and July 2015. Twenty studies were included in the present meta-analysis, for a total of 313 participants included in the training group and 323 participants in the control group. The results demonstrate that healthy adults achieve moderate benefit from AVG training in overall cognitive ability and moderate to small benefit in specific cognitive domains. In contrast, young adults gain more benefits from AVG training than older adults in both overall cognition and specific cognitive domains. Age, education, and some methodological factors, such as the session duration, session number, total training duration, and control group type, modulated the training effects. These meta-analytic findings provide evidence that AVG training may serve as an efficient way to improve the cognitive performance of healthy adults. We also discussed several directions for future AVG training studies.

  9. Prevalence of risk factors for stuttering among boys: analytical cross-sectional study.

    Science.gov (United States)

    Oliveira, Cristiane Moço Canhetti; Nogueira, Paula Roberta

    2014-01-01

    There have been few studies on the risk factors for subgroups of stuttering. The aim of this study was to characterize the risk factors for developmental familial stuttering among boys who stutter and who do not stutter, such as disfluency types, associated quality and communication factors, emotional and physical stress, familial attitudes and personal reactions. Analytical cross-sectional study with a control group, performed at the Fluency Studies Laboratory of the Department of Speech and Hearing Disorders of a public university. The parents of 40 age-matched stuttering and non-stuttering boys took part in this study. The participants were divided into two groups: stuttering children (SC) and non-stuttering children (NSC), with ages between 6 years 0 months and 11 years 11 months. Initially, all of the participants underwent a fluency assessment and then data were gathered using the Protocol for the Risk of Developmental Stuttering. There were no differences in the physical stress distribution factors and personal reactions between the groups. Inappropriate familial attitudes were presented by 95% of the SC and 30% of the NSC. Four risk factors analyzed were not shown by the NSC, namely stuttering-like disfluency, quality factors, physical stress and emotional stresses. The findings suggest that the presence of stuttering-like disfluency, associated quality and communication factors, emotional stress and inappropriate family attitudes are important risk factors for familial developmental stuttering among boys.

  10. Early Adoption of Innovative Analytical Approach and Its Impact on Organizational Analytics Maturity and Sustainability: A Longitudinal Study from a U.S. Pharmaceutical Company

    Directory of Open Access Journals (Sweden)

    John C. Yi

    2016-08-01

    Full Text Available We investigate the impact of early adoption of an innovative analytics approach on organizational analytics maturity and sustainability. With the sales operation planning involving the accurate determination of physician detailing frequency, multiple product sequencing, nonlinear promotional response functions and achievement of the right level of share of voice (SOV, an analytical approach was developed by integrating domain knowledge, neural network (NN’s pattern-recognition capability and nonlinear mathematical programming to address these challenges. A pharmaceutical company headquartered in the U.S. championed this initial research in 2005 and became the first major firm to implement the recommendations. The company improved its profitability by 12% when piloted to a sales district with 481 physicians; then it launched this approach nationally. In 2014, the firm again gave us its data, performance of the analytical approach and access to key stakeholders to better understand the changes in the pharmaceutical sales operations landscape, the firm’s analytics maturity and sustainability of analytics. Results suggest that being the early adopter of innovation doubled the firm’s technology utilization from 2005 to 2014, as well as doubling the firm’s ability to continuously improve the sales operations process; it outperformed the standard industry practice by 23%. Moreover, the infusion of analytics from the corporate office to sales, improvement in management commitment to analytics, increased communications for continuous process improvement and the successes from this approach has created the environment for sustainable organizational growth in analytics.

  11. Conceptual framework for outcomes research studies of hepatitis C: an analytical review

    Directory of Open Access Journals (Sweden)

    Sbarigia U

    2016-05-01

    Full Text Available Urbano Sbarigia,1 Tom R Denee,1 Norris G Turner,2 George J Wan,3 Alan Morrison,4 Anna S Kaufman,4 Gary Rice,5 Geoffrey M Dusheiko6,7 1Janssen Pharmaceutica, Beerse, Belgium; 2Johnson & Johnson Health Care Systems, Inc., Titusville, NJ, 3Mallinckrodt Pharmaceuticals, St. Louis, MO, USA; 4ScribCo, Effort, PA, USA, 5Diplomat Specialty Pharmacy, Flint, MI, USA, 6The University College London Medical Institute for Liver and Digestive Health, London, UK; 7Kings College Hospital, London, UK Abstract: Hepatitis C virus infection is one of the main causes of chronic liver disease worldwide. Until recently, the standard antiviral regimen for hepatitis C was a combination of an interferon derivative and ribavirin, but a plethora of new antiviral drugs is becoming available. While these new drugs have shown great efficacy in clinical trials, observational studies are needed to determine their effectiveness in clinical practice. Previous observational studies have shown that multiple factors, besides the drug regimen, affect patient outcomes in clinical practice. Here, we provide an analytical review of published outcomes studies of the management of hepatitis C virus infection. A conceptual framework defines the relationships between four categories of variables: health care system structure, patient characteristics, process-of-care, and patient outcomes. This framework can provide a starting point for outcomes studies addressing the use and effectiveness of new antiviral drug treatments. Keywords: chronic hepatitis C, humans, treatment outcome, combination drug therapy, antiviral agents

  12. Effects of sample size and intraspecific variation in phylogenetic comparative studies: a meta-analytic review.

    Science.gov (United States)

    Garamszegi, László Z; Møller, Anders P

    2010-11-01

    Comparative analyses aim to explain interspecific variation in phenotype among taxa. In this context, phylogenetic approaches are generally applied to control for similarity due to common descent, because such phylogenetic relationships can produce spurious similarity in phenotypes (known as phylogenetic inertia or bias). On the other hand, these analyses largely ignore potential biases due to within-species variation. Phylogenetic comparative studies inherently assume that species-specific means from intraspecific samples of modest sample size are biologically meaningful. However, within-species variation is often significant, because measurement errors, within- and between-individual variation, seasonal fluctuations, and differences among populations can all reduce the repeatability of a trait. Although simulations revealed that low repeatability can increase the type I error in a phylogenetic study, researchers only exercise great care in accounting for similarity in phenotype due to common phylogenetic descent, while problems posed by intraspecific variation are usually neglected. A meta-analysis of 194 comparative analyses all adjusting for similarity due to common phylogenetic descent revealed that only a few studies reported intraspecific repeatabilities, and hardly any considered or partially dealt with errors arising from intraspecific variation. This is intriguing, because the meta-analytic data suggest that the effect of heterogeneous sampling can be as important as phylogenetic bias, and thus they should be equally controlled in comparative studies. We provide recommendations about how to handle such effects of heterogeneous sampling.

  13. Victim's Rights - Comparative Approach within EU Legislation

    Directory of Open Access Journals (Sweden)

    Monica Pocora

    2015-12-01

    Full Text Available Usually is talking about offender rights and rarely about victim's rights. This study aims to analyse victim's rights especially in Romanian legislation from all points of view. Having involuntary fallen victim to crime, the person is often unaware of what information is available. It is therefore important that the onus is not put on the victim to request a certain piece of information. Victims of crimes need to have their important role in the criminal proceedings and he or she has to know about the extension of them rights. Not least, the study is focus on the right of the victim to receive information, not to be made responsible for the practicalities surrounding its delivery.

  14. Impact of Scotland's comprehensive, smoke-free legislation on stroke.

    Directory of Open Access Journals (Sweden)

    Daniel F Mackay

    Full Text Available BACKGROUND: Previous studies have reported a reduction in acute coronary events following smoke-free legislation. Evidence is lacking on whether stroke is also reduced. The aim was to determine whether the incidence of stroke, overall and by sub-type, fell following introduction of smoke-free legislation across Scotland on 26 March 2006. METHODS AND FINDINGS: A negative binomial regression model was used to determine whether the introduction of smoke-free legislation resulted in a step and/or slope change in stroke incidence. The model was adjusted for age-group, sex, socioeconomic deprivation quintile, urban/rural residence and month. Interaction tests were also performed. Routine hospital administrative data and death certificates were used to identify all hospital admissions and pre-hospital deaths due to stroke (ICD10 codes I61, I63 and I64 in Scotland between 2000 and 2010 inclusive. Prior to the legislation, rates of all stroke, intracerebral haemorrhage and unspecified stroke were decreasing, whilst cerebral infarction was increasing at 0.97% per annum. Following the legislation, there was a dramatic fall in cerebral infarctions that persisted for around 20 months. No visible effect was observed for other types of stroke. The model confirmed an 8.90% (95% CI 4.85, 12.77, p<0.001 stepwise reduction in cerebral infarction at the time the legislation was implemented, after adjustment for potential confounders. CONCLUSIONS: Following introduction of national, comprehensive smoke-free legislation there was a selective reduction in cerebral infarction that was not apparent in other types of stroke.

  15. Familiarity Vs Trust: A Comparative Study of Domain Scientists' Trust in Visual Analytics and Conventional Analysis Methods.

    Science.gov (United States)

    Dasgupta, Aritra; Lee, Joon-Yong; Wilson, Ryan; Lafrance, Robert A; Cramer, Nick; Cook, Kristin; Payne, Samuel

    2017-01-01

    Combining interactive visualization with automated analytical methods like statistics and data mining facilitates data-driven discovery. These visual analytic methods are beginning to be instantiated within mixed-initiative systems, where humans and machines collaboratively influence evidence-gathering and decision-making. But an open research question is that, when domain experts analyze their data, can they completely trust the outputs and operations on the machine-side? Visualization potentially leads to a transparent analysis process, but do domain experts always trust what they see? To address these questions, we present results from the design and evaluation of a mixed-initiative, visual analytics system for biologists, focusing on analyzing the relationships between familiarity of an analysis medium and domain experts' trust. We propose a trust-augmented design of the visual analytics system, that explicitly takes into account domain-specific tasks, conventions, and preferences. For evaluating the system, we present the results of a controlled user study with 34 biologists where we compare the variation of the level of trust across conventional and visual analytic mediums and explore the influence of familiarity and task complexity on trust. We find that despite being unfamiliar with a visual analytic medium, scientists seem to have an average level of trust that is comparable with the same in conventional analysis medium. In fact, for complex sense-making tasks, we find that the visual analytic system is able to inspire greater trust than other mediums. We summarize the implications of our findings with directions for future research on trustworthiness of visual analytic systems.

  16. Development of Food Legislation Around the World

    NARCIS (Netherlands)

    Meulen, van der B.M.J.

    2010-01-01

    A variety of systems are presented in the perspective of the development of food legislation to give an impression of the features found in food law and the reasons they have taken certain forms. Legislation on food is not only widely distributed in time but also in space. The assurance of safe food

  17. Analytical Study of Sub-Wavelength Imaging by Uniaxial Epsilon-Near-Zero Metamaterial Slabs

    CERN Document Server

    Castaldi, Giuseppe; Galdi, Vincenzo; Alu', Andrea; Engheta, Nader

    2012-01-01

    We show that the two-dimensional Green's function of a uniaxial (with possibly tilted optical axis) epsilon-near-zero metamaterial slab, of interest for sub-wavelength imaging, can be calculated analytically in terms of special cylindrical functions. For the near-field parameter ranges of interest, we also derive a small-argument approximation in terms of simple analytical functions. Our results, validated and calibrated against a full-wave reference solution, expand the analytical tools available for computationally-efficient, physically-incisive modeling and design of metamaterial-based sub-wavelength imaging systems.

  18. WEB ANALYTICS COMBINED WITH EYE TRACKING FOR SUCCESSFUL USER EXPERIENCE DESIGN: A CASE STUDY

    Directory of Open Access Journals (Sweden)

    Magdalena BORYS

    2016-12-01

    Full Text Available The authors propose a new approach for the mobile user experience design process by means of web analytics and eye-tracking. The proposed method was applied to design the LUT mobile website. In the method, to create the mobile website design, data of various users and their behaviour were gathered and analysed using the web analytics tool. Next, based on the findings from web analytics, the mobile prototype for the website was created and validated in eye-tracking usability testing. The analysis of participants’ behaviour during eye-tracking sessions allowed improvements of the prototype.

  19. Reducing the Analytical Bottleneck for Domain Scientists: Lessons from a Climate Data Visualization Case Study

    Energy Technology Data Exchange (ETDEWEB)

    Dasgupta, Aritra; Poco, Jorge; Bertini, Enrico; Silva, Claudio T.

    2016-01-31

    The gap between large-scale data production rate and the rate of generation of data-driven scientific insights has led to an analytical bottleneck in scientific domains like climate, biology, etc. This is primarily due to the lack of innovative analytical tools that can help scientists efficiently analyze and explore alternative hypotheses about the data, and communicate their findings effectively to a broad audience. In this paper, by reflecting on a set of successful collaborative research efforts between with a group of climate scientists and visualization researchers, we introspect how interactive visualization can help reduce the analytical bottleneck for domain scientists.

  20. A Systematic Evaluation of Blood Serum and Plasma Pre-Analytics for Metabolomics Cohort Studies

    Directory of Open Access Journals (Sweden)

    Elodie Jobard

    2016-12-01

    Full Text Available The recent thriving development of biobanks and associated high-throughput phenotyping studies requires the elaboration of large-scale approaches for monitoring biological sample quality and compliance with standard protocols. We present a metabolomic investigation of human blood samples that delineates pitfalls and guidelines for the collection, storage and handling procedures for serum and plasma. A series of eight pre-processing technical parameters is systematically investigated along variable ranges commonly encountered across clinical studies. While metabolic fingerprints, as assessed by nuclear magnetic resonance, are not significantly affected by altered centrifugation parameters or delays between sample pre-processing (blood centrifugation and storage, our metabolomic investigation highlights that both the delay and storage temperature between blood draw and centrifugation are the primary parameters impacting serum and plasma metabolic profiles. Storing the blood drawn at 4 °C is shown to be a reliable routine to confine variability associated with idle time prior to sample pre-processing. Based on their fine sensitivity to pre-analytical parameters and protocol variations, metabolic fingerprints could be exploited as valuable ways to determine compliance with standard procedures and quality assessment of blood samples within large multi-omic clinical and translational cohort studies.

  1. Sustainable in-well vapor stripping: A design, analytical model, and pilot study for groundwater remediation.

    Science.gov (United States)

    Sutton, Patrick T; Ginn, Timothy R

    2014-12-15

    A sustainable in-well vapor stripping system is designed as a cost-effective alternative for remediation of shallow chlorinated solvent groundwater plumes. A solar-powered air compressor is used to inject air bubbles into a monitoring well to strip volatile organic compounds from a liquid to vapor phase while simultaneously inducing groundwater circulation around the well screen. An analytical model of the remediation process is developed to estimate contaminant mass flow and removal rates. The model was calibrated based on a one-day pilot study conducted in an existing monitoring well at a former dry cleaning site. According to the model, induced groundwater circulation at the study site increased the contaminant mass flow rate into the well by approximately two orders of magnitude relative to ambient conditions. Modeled estimates for 5h of pulsed air injection per day at the pilot study site indicated that the average effluent concentrations of dissolved tetrachloroethylene and trichloroethylene can be reduced by over 90% relative to the ambient concentrations. The results indicate that the system could be used cost-effectively as either a single- or multi-well point technology to substantially reduce the mass of dissolved chlorinated solvents in groundwater. Copyright © 2014 Elsevier B.V. All rights reserved.

  2. Analytical and experimental study on wave propagation problems in orthotropic media

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Wave propagation problems in orthotropic media are studiedjointly by analytical and experimental methods in this paper. Dynamic orthotropic photoelasticity, which studies experimentally the dynamic behavior of orthotropic materials on a macroscopic scale by employing orthotropic birefringent materials, is established. A dynamic stress-optic law for orthotropic birefringent materials is postulated and practical methods of calibrating dynamic mechanical constants and dynamic stress-fringe values are proposed. Meanwhile, time domain boundary element method (BEM) for wave propagation in orthotropic media, is also presented based on the theory of elastodynamics. A scheme of stress calculations that is necessary for strength analysis is established. The paper stresses on the applications in wave propagation problems in orthotropic media by demonstrating three examples. The semi-infinite orthotropic plates with and without a circular hole modeled by a unidirectional fiber-reinforced composite under impact loading are analyzed. Time histories of birefringent fringe orders or stresses for specific points of the plates are obtained respectively from the two methods and compared with each other. Based on the above comparative study, the dynamic response of an underground workshop under seismic waves is studied by time domain BEM. The responses of displacements and stresses are solved. The effects of angle and frequency of incident waves and the degree of media anisotropy on dynamic response of the underground workshop are investigated.

  3. Multi-analytical characterization of archaeological ceramics. A case study from the Sforza Castle (Milano, Italy).

    Science.gov (United States)

    Barberini, V.; Maspero, F.; Galimberti, L.; Fusi, N.

    2009-04-01

    The aim of this work was the characterization, using several analytical techniques, of a sample of ancient pottery found during archaeological excavations in the 14th century's Sforza Castle in Milano. The use of a multi-analytical approach is well established in the study of archaeological materials (e.g. Tite et al. 1984, Ribechini et al. 2008). The chemical composition of the sample was determined with X-ray fluorescence spectroscopy. The chemical composition is: SiO2 61.3(±3)%, Al2O3 22.5(±2)%, Fe2O3 7.19(±6)%, K2O 3.85(±1)%, MgO 1.6(±1)%, Na2O 1.6(±4)% (probably overestimated), TiO2 1.02(±2)%, CaO 0.93(±1)%, MnO 0.15(±1)% and P2O5 0.06(±2)%. The K2O content, important when dealing with TL dating, was determined also with atomic absorption spectrophotometry. The K2O content determined with atomic absorption is 3.86(±3)%, in agreement with X-ray fluorescence analysis. The mineralogical composition of the sample was determined with X-ray powder diffraction: quartz 59.6(±1) wt%, mica 37.8(±3) wt% and feldspar (plagioclase) 2.6(±2) wt%. The sample homogeneity was assessed with X-ray computerised tomography (CT), which is a very powerful non-destructive analysis tool for 3D characterization (Sèguin, 1991). CT images show differences in materials with different X-ray absorption (mainly depending on different densities) and 3D reconstruction has many interesting archaeological applications (e.g. study of sealed jars). CT images of the studied sample showed the presence of angular fragments (probably quartz) few millimetres wide immersed in a fine grained matrix. Moreover, before and after the CT analysis, some ceramic powder was sampled to perform thermoluminescence analysis (TL, the powder used for this analysis can not be recovered). It was thus possible to evaluate the dose absorbed by the material due the X-ray irradiation. The dose absorbed after 3 hours of irradiation, the time needed for a complete scan of a 7 x 5 x 1 cm, is about 100 Gy, which

  4. Electrochemical study of nisoldipine: analytical application in pharmaceutical forms and photodegradation.

    Science.gov (United States)

    Alvarez-Lueje, A; Naranjo, L; Núñez-Vergara, L J; Squella, J A

    1998-01-01

    The anodic and cathodic behavior of nisoldipine, 3-isobutyl-5-methyl-1,4-dihydro-2,6-dimethyl-4-(2-nitrophenyl)pyridine-3 ,5-dicarboxylate, are reported. This drug belongs to the nitroaryl-1,4-dihydropyridine family, known as calcium channel antagonist and employed in therapeuticalls as peripheral and cerebral vasodilators, in the treatment of the arterial hypertension. The cathodic response corresponds to the reduction of the nitroaromatic group to generate the hydroxylamine derivative. The study by dc and d.p.p. reveals the appearance of four signals depending on pH: Signal I (pH 1-11.5) R - NO2 + 4H+ + 4e- --> R - NHOH + H2O; Signal II (pH 1-5) R - N+H2OH + 2H+ + 2e- --> RN+H3 + H2O; Signal III (pH > 11.5) R - NO2 + e- R - NO2.-; Signal IV (pH > 11.5) R - NO2.- + 3e- + 4H+ --> R - NHOH. In contrast, the anodic response corresponds to the oxidation of the 1,4-dihydropyridine ring to generate the corresponding pyridine derivative. Both, cathodic (d.p.p.) and anodic signals (d.p.v.) were employed to develop analytical methodology for the determination of the drug. The repeatability of the measurements for both methods was adequate with R.S.D. of 1.4% (n = 10) and 2.1% (n = 10) for d.p.p. and d.p.v., respectively. Also recovery studies, 103.8% (R.S.D. 2.65%) by d.p.p. and 98.7% (R.S.D. 2.1%) by d.p.v. show that the accuracy and precision of the developed methods were adequate. The analytical methods were successfully applied to the determination of nisoldipine in both tablets and capsules. In addition, a preliminary study of the photostability of nisoldipine (using both UV and artificial day light) was completed. The identity of the main electroactive photodegradation products by GC with spectrometry detection is provided.

  5. Analytic Matrix Method for the Study of Propagation Characteristics of a Bent Planar Waveguide

    Institute of Scientific and Technical Information of China (English)

    LIU Qing; CAO Zhuang-Qi; SHEN Qi-Shun; DOU Xiao-Ming; CHEN Ying-Li

    2000-01-01

    An analytic matrix method is used to analyze and accurately calculate the propagation constant and bendinglosses of a bent planar waveguide. This method gives not only a dispersion equation with explicit physical insight,but also accurate complex propagation constants.

  6. Research on the Legislation of Chinese Space Laws

    Science.gov (United States)

    Yang, Dongwen

    2002-01-01

    1 Need and necessity for the legislation of Chinese space activities --Complying with UN treaties and principles on outer space --Adapting to the requirements of market economy --Promoting the further development of Chinese space activities --Developing international space cooperation 2 Research method for legislation of Chinese space activities The research method is ROCCIPI. This method was introduced into China with the project "Legislation Supports Economy Reform" supported by the UN Office of Development Planning - By analyzing the correlations among the seven factors: Rule, Opportunity, Capacity, Communication, Interest, Process and Ideology, the optimal legal measures can be found . Such analysis and research works on the master law of Chinese space activities have been made in the paper. 3 Research of international treaties &principles on outer space, and of national space laws of other countries. Studies have been made in this paper on many aspects of international outer space laws, such as framework, development stage, current characteristics, new problems will be faced with in new century, and development tendency in the future, etc. Based on the investigation and study of national space laws of other countries, analyses and researches on national space law have been made in the paper from some aspects, such as legislative purpose, legislative aim, legislative form, legislative content and etc, and some enlightenments, which can be used for reference in the legislation of Chinese Space Laws, are found. 4 Framework of Chinese Space Laws The jurisdiction of Chinese Space Laws lies in three areas: space technology - space applications and space science. Chinese Space Laws are divided into 3 levels: Master law, Administration Regulations of the State Council of the P.R.C, Rules of governmental sectors. 5 Conclusions and Suggestions --The legislation of Chinese Space Activities should be strengthened --More attentions should be paid to the research work in

  7. Analytical study of the Optimum Operation Strategy for an Hybrid-SIT in SBO

    Energy Technology Data Exchange (ETDEWEB)

    Jeon, In Seop; Kang, Hyun Gook [KAIST, Daejeon (Korea, Republic of)

    2015-10-15

    Passive auxiliary feedwater system (PAFS) is the primary system which will be used in residual heat removal. Since the PAFS relies on the natural circulation in primary coolant system and steam condensation in water tank, it is designed to be operated even in a SBO accident. If both PAFSs fail, depressurization of the RCS is necessary for low-pressure injection by normal SITs. This strategy however causes loss of RCS inventory which may cause limited natural circulation in the primary coolant system when the PAFSs are restored. In that sense, if RCS inventory can be maintained during core cool down by high-pressure injection, it increases the diversity of mitigation means. In order to develop this operation strategy, five main factors were identified: the number of PAFSs in simultaneous operation before PCCT refill failure, the number of H-SITs in simultaneous operation, and the overlap percentage, initiation timing, and operation order of the H-SITs. Based on these main factors, the optimum values were identified by analytical and theoretical studies. Results demonstrated that the H-SITs should initiate when the upper plenum level is 0%, and should operate in a 4-3-2-1 order. In case of overlap percentage, it varies according to the number of PAFSs in operation for 8 hours. With both PAFSs in operation before H-SIT initiation, the optimum overlap percent was found to be 31%, with a value of 34% for one PAFS in operation before H-SIT initiation. The results of these two cases are not much different as the decay heat generation rate in both cases is similar. When both PAFSs fail to operate, the result of analytical study demonstrated the H-SITs should overlap by 74%, as the decay heat generation rate during H-SIT operation was very high compared to the other cases. In this case, with dual overlap of the H-SITs in simultaneous operation, a 4.6% overlap is sufficient to mitigate the accident.

  8. Analytical study of building height effects over Steel Plate Shear Wall Behavior

    Directory of Open Access Journals (Sweden)

    Benyamin Kioumarsi

    2016-09-01

    Full Text Available In the latest three decades, the steel plate shear walls (SPSW system has emerged as a promising lateral load resisting system for both construction new buildings and retrofit of existing buildings. This system has acceptable stiffness for control of structure displacement, ductile failure mechanism and high energy absorption. This paper will quantify the effect of increasing the height over analytical behavior of SPSW (height effect. Considering abundant emergence of high-rise buildings all over the world in recent years and their need for strengthening, the importance of the studies presented in this paper cannot be overemphasized for optimum height usage of SPSW lateral resisting system. The study was performed through design of four models of dual system with special moment frames capable of resisting at least 25% of prescribed seismic forces. In this article, structure buildings consisting of 5, 10, 15 and 20 stories have been modelled. Results consisting of story shear absorption, support reaction forces, lateral story displacement and drift index have investigated for different cases. Results show that SPSW absorbs more shears at the lower stories than top stories. Furthermore, axial reaction of edge supports experience decreasing rate corresponding to increase in the story numbers. Drift magnitude of steel plate shear wall with the 5 stories has the maximum value at the top story while the systems with the 10 and the 15 stories have maximum drift at lower stories.

  9. Analytic and Experimental Studies of the Errors in Numerical Methods for the Valuation of Options

    Institute of Scientific and Technical Information of China (English)

    P.Lin; J. J. H. Miller; G. I. Shishkin

    2008-01-01

    The value of a European option satisfies the Black-Scholes equation with appropriately specified final and boundary conditions. We transform the problem to an initial boundary value problem in dimensionless form. There are two parameters in the coefficients of the resulting linear parabolic partial differential equation. For a range of values of these parameters, the solution of the problem has a boundary or an initial layer. The initial function has a discontinuity in the first-order derivative, which leads to the appearance of an interior layer. We construct analytically the asymptotic solution of the equation in a finite domain. Based on the asymptotic solution we can determine the size of the artificial boundary such that the required solution in a finite domain in x and at the final time is not affected by the boundary. Also, we study computationally the behaviour in the maximum norm of the errors in numerical solutions in cases such that one of the parameters varies from finite (or pretty large) to small values, while the other parameter is fixed and takes either finite (or pretty large) or small values. Crank-Nicolson explicit and implicit schemes using centered or upwind approximations to the derivative are studied. We present numerical computations, which determine experimentally the parameter-uniform rates of convergence. We note that this rate is rather weak, due probably to mixed sources of error such as initial and boundary layers and the discontinuity in the derivative of the solution.

  10. An analytical study of the effects of vaporization of twodimensional laminar droplets on a triple flame

    Directory of Open Access Journals (Sweden)

    Bidabadi Mehdi

    2011-01-01

    Full Text Available The structure of triple flame propagation in combustion systems, containing uniformly distributed volatile fuel droplet was analyzed. The analysis was established for a one-step irreversible reaction with an asymptotic limit, where the value of the Zeldovich Number is large. Here, using unit Lewis number, the analytical results for the triple flame temperature were obtained considering two sections. In the first section, a non-vaporizing fuel stream was studied and in the second section, a volatile droplet fuel stream was taken into account. It is presumed that the fuel droplets vaporize to yield a gaseous fuel of known chemical structure, which is subsequently oxidized in the gaseous phase. Here two different cases are studied. In the first case, only the velocity parallel to the reactant flow was considered; while for the latter one, the vertical velocity was considered in addition. The energy equations were solved and the temperature field equations are presented. The results are first presented for a non-vaporizing fuel and compared to the experiment results. In addition, some other results of the temperature field for a vaporizing fuel stream are demonstrated within the comparison between the abovementioned cases which revealed the effect of the considering the vertical velocity component on the flame temperature field.

  11. Cloud-Enabled Climate Analytics-as-a-Service using Reanalysis data: A case study.

    Science.gov (United States)

    Nadeau, D.; Duffy, D.; Schnase, J. L.; McInerney, M.; Tamkin, G.; Potter, G. L.; Thompson, J. H.

    2014-12-01

    The NASA Center for Climate Simulation (NCCS) maintains advanced data capabilities and facilities that allow researchers to access the enormous volume of data generated by weather and climate models. The NASA Climate Model Data Service (CDS) and the NCCS are merging their efforts to provide Climate Analytics-as-a-Service for the comparative study of the major reanalysis projects: ECMWF ERA-Interim, NASA/GMAO MERRA, NOAA/NCEP CFSR, NOAA/ESRL 20CR, JMA JRA25, and JRA55. These reanalyses have been repackaged to netCDF4 file format following the CMIP5 Climate and Forecast (CF) metadata convention prior to be sequenced into the Hadoop Distributed File System ( HDFS ). A small set of operations that represent a common starting point in many analysis workflows was then created: min, max, sum, count, variance and average. In this example, Reanalysis data exploration was performed with the use of Hadoop MapReduce and accessibility was achieved using the Climate Data Service(CDS) application programming interface (API) created at NCCS. This API provides a uniform treatment of large amount of data. In this case study, we have limited our exploration to 2 variables, temperature and precipitation, using 3 operations, min, max and avg and using 30-year of Reanalysis data for 3 regions of the world: global, polar, subtropical.

  12. Comparison of Cardiovascular Risk Factors Between Subjects With and Without Diabetes Mellitus: An Analytical Study

    Directory of Open Access Journals (Sweden)

    Mousavi

    2016-02-01

    Full Text Available Background Cardiovascular Disease (CVD is developing treacherously along industrialization and development of urbanization Objectives The aim of this study was to compare cardiovascular risk factors between subjects with and without diabetes mellitus in the Minoodar district of Qazvin. Patients and Methods This analytical study was conducted on 100 subjects with diabetes and 140 subjects without diabetes in Qazvin from September 2010 to April 2011. Standardized measurements were available for waist circumference (WC, blood pressure (BP, fasting serum cholesterol, high-density lipoprotein cholesterol (HDL, and triglycerides (TGs. Cardiovascular risk factors were defined according to the diagnostic criteria proposed by the national cholesterol education program. Data were analyzed using the t-test, Mann-Whitney U test, and Chi-square test. Results Overall, 12% of subjects with diabetes and 17.9% of subjects without diabetes were smokers (P = 0.277. The WC, TGs, systolic and diastolic BP were significantly higher in subjects with diabetes compared to subjects without diabetes. The prevalence of high WC, high BP, low HDL, and high TGs were significantly higher in subjects with diabetes compared to subjects without diabetes. Conclusions Cardiovascular risk factors were higher in subjects with diabetes compared to subjects without diabetes. Lifestyle intervention programs should be focused on community education about reduction of CVD risk factors in patients with diabetes.

  13. Analytical methodology for the study of trace organic pollutants in Trinidad waterways

    Energy Technology Data Exchange (ETDEWEB)

    Moore, R.A.

    1984-01-01

    The objectives of this research were the development of analytical methodology for the identification and quantification of trace organic compounds in water and the application of this methodology to a study of trace organic pollution in the Caroni River an other Trinidad waterways. The study was limited to a region upstream from the Caroni/Arena Water Treatment Plant. The research program was divided into three phases: phase I involved the profiling of the types of pollutants which occur in the waterways; in phase II methods were developed and optimized for the broad-spectrum analysis of trace organic compounds, the emphasis being placed primarily on compounds representative of those classes of compounds identified in phase I; in phase III, methods developed in phase II of the program were applied to a quantitative survey of organic pollutants in the waterways in order to assess the source and fate of the pollutants species. Of critical concern was the impact of the Water Treatment plant on pollutant species which arise upstream from the location of its intake water. Pesticides, polyaromatic hydrocarbons, aliphatic hydrocarbons, phenolic compounds, aliphatic and phthalate esters were the main groups of compounds found in the Caroni River and other rivers which flow directly into the Caroni River.

  14. Effect of Atomic Coherence on Absorption in Four-level Systems: an Analytical study

    CERN Document Server

    Sandhya, S N

    2006-01-01

    Absorption profile of a four-level ladder atomic system interacting with three driving fields is studied perturbatively and analytical results are presented. Numerical results where the driving field strengths are treated upto all orders are presented. The absorption features is studied in two regimes, i) the weak middle transition coupling, i.e. $\\Omega_2 \\Omega_{1,3}$ and ii) the strong middle transition coupling $\\Omega_2 \\Omega_{1,3}$. In case i), it is shown that the ground state absorption and the saturation characteristics of the population of level 2 reveal deviation due to the presence of upper level couplings. In particular, the saturation curve for the population of level 2 shows a dip for $\\Omega_1 = \\Omega_3$. While the populations of levels 3 and 4 show a maxima when this resonance condition is satisfied. Thus the resonance condition provides a criterion for maximally populating the upper levels. A second order perturbation calculation reveals the nature of this minima (maxima). In the second ca...

  15. Studying the interpretation of dreams in the company of analytic candidates.

    Science.gov (United States)

    Levy, Joshua

    2009-08-01

    Seminars serve as an important, though undervalued, component of psychoanalytic education. The focus of this paper is on the teaching of Freud's The Interpretation of Dreams through a series of seminars presented to analytic candidates at the Toronto Psychoanalytic Institutes. This has been an essential book for introducing generations of candidates to the psychoanalytic concept of the mind and for shaping candidates' understanding and attitudes toward working with their patients' dreams. Four of Freud's basic dream concepts-(1) the method and its application to the exploration of the relationship between manifest and latent dream content, (2) the sources of dreams (day residues), (3) the dream-work, and (4) wish fulfillment-are critically studied in the seminars. Detailed discussion of these basic dream concepts among the candidates and with the teacher, as well as the candidates' feedback at the conclusion of the seminars, are summarized and discussed. Through the teaching and study within the seminar framework of the fundamentals of Freud's dream theory, a shared growth experience results for both teacher and candidates.

  16. Atmospheric pollution in the Tula Industrial Corridor studied using a bio monitor and nuclear analytical techniques

    Energy Technology Data Exchange (ETDEWEB)

    Martinez C, M. A.; Solis, C.; Andrade, E. [UNAM, Instituto de Fisica, Apdo. Postal 20-364, 01000 Mexico D. F. (Mexico); Beltran H, R. I. [Universidad Autonoma del Estado de Hidalgo, Centro de Investigaciones Quimicas, Carretera Pachuca-Tulancingo Km. 4.5, 42184 Pachuca, Hidalgo (Mexico); Issac O, K. [Universidad Autonoma del Estado de Mexico, Facultad de Medicina, Paseo Tollocan s/n, esq. Jesus Carranza, 50120 Toluca, Estado de Mexico (Mexico); Lucho C, C. A. [Universidad Politecnica de Pachuca, Carretera Pachuca-Cd. Sahagun Km. 20, Hidalgo (Mexico); Lopez R, M. C.; Longoria, L. C. [ININ, Carretera Mexico-Toluca s/n, 52750 Ocoyoacac, Estado de Mexico (Mexico)

    2011-02-15

    This study deals with the application of nuclear analytical techniques to analyze trace elements in the biological monitor Tillandsia usneoides. Biological monitors provides an alternative advantageous way of particulate matter sampling in air pollution studies, since there is no need of special sampling devices, accumulation time can be as long as desired. T. usneoides, which occurs naturally throughout Mexico, was used to monitor air quality of Tula-Vito-Apasco (TVA) industrial corridor at central Mexico. This area is considered one of the critical zones of the country because of atmospheric contaminants high concentration. Particulate matter is regulated by Mexican norms, but its chemical composition is not. Plants were transplanted from a clean environment to four sites at the TVA corridor, and exposed for 12 weeks from February to April 2008. Trace element accumulation of plants was determined by particle induced X-ray emission and neutron activation analysis. Results reveal differences in trace elements distribution among sites in the TVA corridor. Furthermore, anthropogenic elements (S, V) and crustal elements (Ca) in T. usneoides exhibit high levels. Highly toxic elements such as Hg, As and Cr although present at trace levels, showed un enrichment relative to the initial values, when transplanted to the TVA corridor. Results show that monitoring with T. usneoides allows a first approximation of air sources to provide insights of the atmospheric pollution in the TVA corridor. (Author)

  17. Colposcopic evaluation of cervix with persistent inflammatory Pap smear: A prospective analytical study

    Directory of Open Access Journals (Sweden)

    Dasari Papa

    2010-01-01

    Full Text Available Background: Inflammatory Pap smear is the most common report received by a gynecologist. The cervical screening algorithm for benign cellular changes on the Pap smear recommends treatment of infection if indicated and a repeat Pap smear in 4 to 6 months time. If the inflammatory changes still persist, subject the patient to colposcopy. However, in practice, this is not followed, especially in developing countries like ours where proper screening protocols are not available. Hence, a good number of patients in the premalignant stage are being missed. This study was undertaken to evaluate patients with persistent inflammatory Pap smears without atypia using colposcopy. Methods: A prospective analytical study of 150 gynecologial patients with persistent inflammatory Pap smear between 2006 and 2008 in an out-patient setting. All of them were subjected to colposcopy and biopsy from the abnormal areas. The incidence of cervical intraepithelial neoplasia (CIN/invasive carcinoma was calculated by proportions/percentages. Results: The incidence of invasive carcinoma was <1%. But, the incidence of pre-malignant lesions (CIN was high (20.9%. CIN 2/3 and carcinoma in situ were present in 6.9% of the cases. Conclusions: Patients with persistent inflammatory Pap smears can harbour a high proportion of CIN and hence these patients will need further evaluation.

  18. STUDY ON EXACT ANALYTICAL SOLUTIONS FOR TWO SYSTEMS OF NONLINEAR EVOLUTION EQUATIONS

    Institute of Scientific and Technical Information of China (English)

    闫振亚; 张鸿庆

    2001-01-01

    The homogeneous balance method was improved and applied to two systems of nonlinear evolution equations. As a result, several families of exact analytic solutions are derived by some new ansatzs. These solutions contain Wang's and Zhang's results and other new types of analytical solutions, such as rational fraction solutions and periodic solutions. The way can also be applied to solve more nonlinear partial differential equations.

  19. An analytical study on bistability of Fabry-Perot semiconductor optical amplifiers

    Science.gov (United States)

    Wang, Gang; Chen, Shuqiang; Yang, Huajun

    2016-09-01

    Optical bistabilities have been considered to be useful for sensor applications. As a typical nonlinear device, Fabry-Perot semiconductor optical amplifiers (FPSOAs) exhibit bistability under certain conditions. In this paper, the bistable characteristics in FPSOAs are investigated theoretically. Based on Adams's relationship between the incident optical intensity I in and the z-independent average intracavity intensity I av, an analytical expression of the bistable loop width in SOAs is derived. Numerical simulations confirm the accuracy of the analytical result.

  20. Analytic study of solutions for the Born-Infeld equation in nonlinear electrodynamics

    Science.gov (United States)

    Gao, Hui; Xu, Tianzhou; Fan, Tianyou; Wang, Gangwei

    2017-03-01

    The Born-Infeld equation is an important nonlinear partial differential equation in theoretical and mathematical physics. The Lie group method is used for simplifying the nonlinear partial differential equation, which is partly solved, in which there are some difficulties; to overcome the difficulties, we develop a power series method, and find the solutions in analytic form. In the mean time, a wave propagation (traveling wave) method is developed for solving the equation, and analytic solutions are also constructed.

  1. Development of novel analytical methods to study the metabolism of coumarin

    OpenAIRE

    1996-01-01

    The research in this thesis revolves around developing analytical methods for the determination of coumann and 7-hydroxycoumann for various applications. The techniques used in this work were, capillary electrophoresis, immunosensing and electrochemistry. Chapter 1 serves as general review of the analysis of coumann and 7-hydroxycoumann, including the many different types of analytical technique which have been used to analyse this drug. Capillary electrophoresis was used as the basis of a me...

  2. Mandatory helmet legislation and the print media in Viet Nam.

    Science.gov (United States)

    Hill, Peter S; Ngo, Anh D; Khuong, Tuan A; Dao, Huong L; Hoang, Hanh T M; Trinh, Hang T; Nguyen, Lien T N; Nguyen, Phong H

    2009-07-01

    With motorcycle ownership high and rising in Viet Nam, and motorcycle riders vulnerable to both fatal and non-fatal injury, the re-introduction of mandatory helmet legislation in 2007 has been a priority for the Vietnamese government. The paper uses a qualitative analysis of web-based versions of the eight most popular newspapers in Viet Nam to track reporting over four phases of the implementation of the legislation, identifying codes and constructing the dominant themes of the media coverage. The study documents the justification and promotion of the legislation, and the mechanisms for preparing for its implementation at a national and local level, developing solutions and encouraging the replication of successful strategies. It records opposition and obstacles to helmet use, and concerns raised around the quality of helmets purchased. In return, the press notes the response of the market in innovative solutions to these problems. With the successful implementation of the legislation, the functions of the print media in promulgating and promoting the legislation, together with the reporting of ongoing resistance to the process, serve to enable a dialogue between the State and population around expressed concerns. In highlighting quality control of helmets as a key issue, the media have identified a potential ongoing role in monitoring the state's initiative in reducing the road toll from traumatic brain injury in motorcyclists.

  3. Developing optimal search strategies for detecting clinically sound prognostic studies in MEDLINE: an analytic survey

    Directory of Open Access Journals (Sweden)

    Haynes R Brian

    2004-06-01

    Full Text Available Abstract Background Clinical end users of MEDLINE have a difficult time retrieving articles that are both scientifically sound and directly relevant to clinical practice. Search filters have been developed to assist end users in increasing the success of their searches. Many filters have been developed for the literature on therapy and reviews but little has been done in the area of prognosis. The objective of this study is to determine how well various methodologic textwords, Medical Subject Headings, and their Boolean combinations retrieve methodologically sound literature on the prognosis of health disorders in MEDLINE. Methods An analytic survey was conducted, comparing hand searches of journals with retrievals from MEDLINE for candidate search terms and combinations. Six research assistants read all issues of 161 journals for the publishing year 2000. All articles were rated using purpose and quality indicators and categorized into clinically relevant original studies, review articles, general papers, or case reports. The original and review articles were then categorized as 'pass' or 'fail' for methodologic rigor in the areas of prognosis and other clinical topics. Candidate search strategies were developed for prognosis and run in MEDLINE – the retrievals being compared with the hand search data. The sensitivity, specificity, precision, and accuracy of the search strategies were calculated. Results 12% of studies classified as prognosis met basic criteria for scientific merit for testing clinical applications. Combinations of terms reached peak sensitivities of 90%. Compared with the best single term, multiple terms increased sensitivity for sound studies by 25.2% (absolute increase, and increased specificity, but by a much smaller amount (1.1% when sensitivity was maximized. Combining terms to optimize both sensitivity and specificity achieved sensitivities and specificities of approximately 83% for each. Conclusion Empirically derived

  4. Analytical strategies for discovery and replication of genetic effects in pharmacogenomic studies

    Directory of Open Access Journals (Sweden)

    Kohler JR

    2014-08-01

    Full Text Available Jared R Kohler, Tobias Guennel, Scott L MarshallBioStat Solutions, Inc., Frederick, MD, USAAbstract: In the past decade, the pharmaceutical industry and biomedical research sector have devoted considerable resources to pharmacogenomics (PGx with the hope that understanding genetic variation in patients would deliver on the promise of personalized medicine. With the advent of new technologies and the improved collection of DNA samples, the roadblock to advancements in PGx discovery is no longer the lack of high-density genetic information captured on patient populations, but rather the development, adaptation, and tailoring of analytical strategies to effectively harness this wealth of information. The current analytical paradigm in PGx considers the single-nucleotide polymorphism (SNP as the genomic feature of interest and performs single SNP association tests to discover PGx effects – ie, genetic effects impacting drug response. While it can be straightforward to process single SNP results and to consider how this information may be extended for use in downstream patient stratification, the rate of replication for single SNP associations has been low and the desired success of producing clinically and commercially viable biomarkers has not been realized. This may be due to the fact that single SNP association testing is suboptimal given the complexities of PGx discovery in the clinical trial setting, including: 1 relatively small sample sizes; 2 diverse clinical cohorts within and across trials due to genetic ancestry (potentially impacting the ability to replicate findings; and 3 the potential polygenic nature of a drug response. Subsequently, a shift in the current paradigm is proposed: to consider the gene as the genomic feature of interest in PGx discovery. The proof-of-concept study presented in this manuscript demonstrates that genomic region-based association testing has the potential to improve the power of detecting single SNP or

  5. A study on evaluation and analytical methods for groundwater flow with considering sea/fresh-water boundary. 1

    Energy Technology Data Exchange (ETDEWEB)

    Anezaki, S. [Taisei Corp., Tokyo (Japan)

    1998-03-01

    Sea/fresh-water boundary caused by density and concentration balance of sea-water and fresh-water is an important item for groundwater flow evaluation in deep underground near the coast. Also, in order to evaluate groundwater quality, it is important to understand the characteristics of sea/fresh-water boundary, for example boundary shape, salt distribution. In order to establish the evaluation and analytical methods for groundwater flow with considering sea/fresh-water boundary, we investigated the following items in this study. (1) Literature survey and data collection. (2) Investigation of analytical methods. (3) Planning of further study. (author). 78 refs.

  6. Connecting Performance to Social Structure and Pedagogy as a Pathway to Scaling Learning Analytics in MOOCs: An Exploratory Study

    Science.gov (United States)

    Goggins, S. P.; Galyen, K. D.; Petakovic, E.; Laffey, J. M.

    2016-01-01

    This exploratory study focuses on the design and evaluation of teaching analytics that relate social learning structure with performance measures in a massive open online course (MOOC) prototype environment. Using reflexive analysis of online learning trace data and qualitative performance measures we present an exploratory empirical study that:…

  7. A Meta-Analytic Study Concerning the Effect of Computer-Based Teaching on Academic Success in Turkey

    Science.gov (United States)

    Batdi, Veli

    2015-01-01

    This research aims to investigate the effect of computer-based teaching (CBT) on students' academic success. The research used a meta-analytic method to reach a general conclusion by statistically calculating the results of a number of independent studies. In total, 78 studies (62 master's theses, 4 PhD theses, and 12 articles) concerning this…

  8. A Thematic-Based Meta Analytic Study Regarding the Effect of Creativity on Academic Success and Learning Retention

    Science.gov (United States)

    Özdas, Faysal; Batdi, Veli

    2017-01-01

    This thematic-based meta-analytic study aims to examine the effect of creativity on the academic success and learning retention scores of students. In the context of this aim, 18 out of 225 studies regarding creativity that were carried out between 2001 and 2011 have been obtained from certain national and international databases. The studies…

  9. Impact of social factors on health practices of the elderly: an analytical study in rural Surendranagar

    Directory of Open Access Journals (Sweden)

    Shashwat Nagar

    2013-04-01

    Full Text Available Introduction: Increased attention to health promotion and disease prevention are important for the appropriate care of the elderly. With the increasing life expectancy, a focus on preventive measures to decrease morbidity and improve quality of life in old age has also developed. To that end, health behavior and lifestyle have become important areas of concern over the last 20 years. Social factors lay a significant impact on the health practices. This study was therefore taken up to study the above factor and draw conclusions. Aims and objectives: 1. To study the various health practices of the elderly. 2. To find out association between the socio demographic features and the prevailing health practices. Methods: A Cross sectional analytical study was carried out. All the subjects were interviewed personally to know the details and were treated with due respect after a consent. Out of all the talukas in rural Surendranagar, Sayla was selected randomly after which Sayla village was selected in a similar manner from all the villages in the talukas. Results: The mean age of the subjects was 68±7.5. Majority of the subjects were unemployed and illiterate (58%. Social factors like Social class, staying with children and staying in joint family were significantly associated with good health practices. Conclusions: The Health practices of the elderly can be improved upon by large scale health education programmes which can be targeted on the age group. Patient compliance improvement can be achieved by explaining them about the disease and treatment protocol in detail at the time of their health visit. [Int J Res Med Sci 2013; 1(2.000: 116-122

  10. MLH1 promoter hypermethylation in the analytical algorithm of Lynch syndrome: a cost-effectiveness study

    Science.gov (United States)

    Gausachs, Mireia; Mur, Pilar; Corral, Julieta; Pineda, Marta; González, Sara; Benito, Llúcia; Menéndez, Mireia; Espinàs, Josep Alfons; Brunet, Joan; Iniesta, María Dolores; Gruber, Stephen B; Lázaro, Conxi; Blanco, Ignacio; Capellá, Gabriel

    2012-01-01

    The analytical algorithm of Lynch syndrome (LS) is increasingly complex. BRAF V600E mutation and MLH1 promoter hypermethylation have been proposed as a screening tool for the identification of LS. The aim of this study was to assess the clinical usefulness and cost-effectiveness of both somatic alterations to improve the yield of the diagnostic algorithm of LS. A total of 122 colorectal tumors from individuals with family history of colorectal cancer that showed microsatellite instability and/or loss of mismatch repair (MMR) protein expression were studied. MMR germline mutations were detected in 57 cases (40 MLH1, 15 MSH2 and 2 MSH6). BRAF V600E mutation was assessed by single-nucleotide primer extension. MLH1 promoter hypermethylation was assessed by methylation-specific multiplex ligation-dependent probe amplification in a subset of 71 cases with loss of MLH1 protein. A decision model was developed to estimate the incremental costs of alternative case-finding methods for detecting MLH1 mutation carriers. One-way sensitivity analysis was performed to assess robustness of estimations. Sensitivity of the absence of BRAF mutations for depiction of LS patients was 96% (23/24) and specificity was 28% (13/47). Specificity of MLH1 promoter hypermethylation for depiction of sporadic tumors was 66% (31/47) and sensitivity of 96% (23/24). The cost per additional mutation detected when using hypermethylation analysis was lower when compared with BRAF study and germinal MLH1 mutation study. Somatic hypermethylation of MLH1 is an accurate and cost-effective pre-screening method in the selection of patients that are candidates for MLH1 germline analysis when LS is suspected and MLH1 protein expression is absent. PMID:22274583

  11. Incorporating the nuclear vibrational energies into the -atom in molecules- analysis: An analytical study

    CERN Document Server

    Gharabaghi, Masumeh

    2016-01-01

    The orthodox quantum theory of atoms in molecules (QTAIM) is based on the clamped nucleus paradigm and working solely with the electronic wavefunctions, so unable to include nuclear vibrations in the AIM analysis. On the other hand, the recently extended version of the QTAIM, called the multi-component QTAIM (MC-QTAIM), incorporates both electrons and quantum nuclei, i.e. those nuclei treated as quantum waves instead of clamped point charges, into the AIM analysis using non-adiabatic wavefunctions. Thus, the MC-QTAIM is the natural framework to incorporate the role of nuclear vibrations into the AIM analysis. In this study, within the context of the MC-QTAIM, the formalism of including nuclear vibrational energy in the atomic basin energy is developed in detail and its contribution is derived analytically using the recently proposed non-adiabatic Hartree product nuclear wavefunction. It is demonstrated that within the context of this wavefunction the quantum nuclei may be conceived pseudo-adiabatically as qua...

  12. Studying the complexity of change: toward an analytical framework for understanding deliberate social-ecological transformations

    Directory of Open Access Journals (Sweden)

    Michele-Lee Moore

    2014-12-01

    Full Text Available Faced with numerous seemingly intractable social and environmental challenges, many scholars and practitioners are increasingly interested in understanding how to actively engage and transform the existing systems holding such problems in place. Although a variety of analytical models have emerged in recent years, most emphasize either the social or ecological elements of such transformations rather than their coupled nature. To address this, first we have presented a definition of the core elements of a social-ecological system (SES that could potentially be altered in a transformation. Second, we drew on insights about transformation from three branches of literature focused on radical change, i.e., social movements, socio-technical transitions, and social innovation, and gave consideration to the similarities and differences with the current studies by resilience scholars. Drawing on these findings, we have proposed a framework that outlines the process and phases of transformative change in an SES. Future research will be able to utilize the framework as a tool for analyzing the alteration of social-ecological feedbacks, identifying critical barriers and leverage points and assessing the outcome of social-ecological transformations.

  13. Study on Quality Indicator System of Rhythmic Gymnasts in Analytic Hierarchy Process

    Science.gov (United States)

    Luo, Lin

    2017-08-01

    The rhythmic gymnastics (RG) is a sport item with the direct aim of winning as well as a good ornamental value. The scientific selection by the rhythmic gymnasts is necessary for the success, and also the beginning for the scientific training of the gymnasts in their special training stage. According to RG characteristics and the physical characteristics of the gymnasts, also in combination with the investigations & interviews to the coaches who have years of training experience in RG, the experts & scholars on RG study & teaching in universities, and by referring to relevant documents, this paper established the quality indicator system in analytic hierarchy process (AHP). We summarized and selected several indicators obviously influencing the RG training and divided them into the three types of factors: physical factors, flexibility & strength factors, and speed & dexterity factors, according to which 12 specific indicators, their weights and comprehensive evaluation coefficients. Based on these indicators, we established the quality indicator system of the gymnasts, and developed corresponding software system, providing scientific theoretical basis & practical application basis for the selection & evaluation of the gymnasts.

  14. Comparison of four analytic strategies for complex survey data: a case-study of Spanish data.

    Directory of Open Access Journals (Sweden)

    Mohd Masood

    2016-03-01

    Full Text Available Purpose: The aim of this secondary data analysis was to investigate the effect of four different analytical strategies: Model Based Analysis (MBA, Design Based Analysis (DBA, Multilevel Model Based Analysis (MMBA, and Multilevel Design Based Analysis (MDBA, on the model estimates for complex survey data.Methods: Using data from the World Health Survey-Spain explanatory models for the outcome Metabolic Equivalent of Task (METs were calculated using MBA, DBA, MMBA, and MDBA. Regression coefficients, standard errors (SE and the Akaike Information Criterion (AIC from all the models were compared.Results: DBA showed highest estimates for most of the variables, including consistently higher SE than all other model - 20% to 48% higher than estimates for MBA, 10% to 37% for MMBA and 23% to 35% for MDBA. The SE for MDBA were 2.5% to 13% higher than estimates derived from MMBA in level 1 predictors, but SE in MMBA was higher by 18% for level 2 predictors. Values of AIC suggested the model derived by MDBA was the best fit and DBA the poorest fit of the four models.Conclusion: With minimum AIC, MDBA appeared to be the most appropriate approach to analyze complex survey data. To confirm the finding of present study a future work on a simulation data would be required.

  15. Analytical study of Joule heating effects on electrokinetic transportation in capillary electrophoresis.

    Science.gov (United States)

    Xuan, Xiangchun; Li, Dongqing

    2005-02-04

    Electric fields are often used to transport fluids (by electroosmosis) and separate charged samples (by electrophoresis) in microfluidic devices. However, there exists inevitable Joule heating when electric currents are passing through electrolyte solutions. Joule heating not only increases the fluid temperature, but also produces temperature gradients in cross-stream and axial directions. These temperature effects make fluid properties non-uniform, and hence alter the applied electric potential field and the flow field. The mass species transport is also influenced. In this paper we develop an analytical model to study Joule heating effects on the transport of heat, electricity, momentum and mass species in capillary-based electrophoresis. Close-form formulae are derived for the temperature, applied electrical potential, velocity, and pressure fields at steady state, and the transient concentration field as well. Also available are the compact formulae for the electric current and the volume flow rate through the capillary. It is shown that, due to the thermal end effect, sharp temperature drops appear close to capillary ends, where sharp rises of electric field are required to meet the current continuity. In order to satisfy the mass continuity, pressure gradients have to be induced along the capillary. The resultant curved fluid velocity profile and the increase of molecular diffusion both contribute to the dispersion of samples. However, Joule heating effects enhance the sample transport velocity, reducing the analysis time in capillary electrophoretic separations.

  16. Penentuan Peringkat Bahaya Tsunami dengan Metode Analytical Hierarchy Process (Studi kasus: Wilayah Pesisir Kabupaten Sukabumi

    Directory of Open Access Journals (Sweden)

    Oki Oktariadi

    2014-06-01

    Full Text Available http://dx.doi.org/10.17014/ijog.vol4no2.20093Hierarchy structure of a tsunami risk encompasses the study of hazard, vulnerability, and capac- ity factors. The focus of this research is hazard factors, with indicators comprise beach slope, beach coarseness (surface material, run up, and earthquake intensity. Computation method used in the deci- sion system is the Analytical Hierarchy Process (AHP. The AHP method is to determine the weight of indicators and matrices of hazard factor hierarchy. The final total score of the hazard factors will be useful for tsunami hazard mapping through a geographic information system (GIS. It consists of four hierarchies of  tsunami hazard that are high, middle, low, and safe levels. The coastal regions in Sukabumi having high tsunami disaster risk are the Gulf of Pelabuhanratu, Ciemas plain (Gulf of Ciletuh, Ujung Genteng Cape, and some parts of coastal plain areas in Sim- penan. Those having middle tsunami disaster risk are coastal area of Surade, Cibitung, Tegalbuleud, whereas those having low tsunami disaster risk are Cisolok cliff, Simpenan, and Ciemas cliff area. The other coastal zones are included into a safe area.  

  17. Experimental and analytical study about the compressive behavior of eps sandwich panels

    Directory of Open Access Journals (Sweden)

    Carbonari, G.

    2013-09-01

    Full Text Available This study presents a detailed characterization of the behavior of EPS sandwich panels subject to normal load taking into account several variables. For that, two experimental programs were performed, leading to the proposal of an analytical formulation to estimate the maximum load resisted. The results obtained show how the height of the panel, the material properties, the position and configuration of the reinforcement may affect the resistance of panels. Special attention should be given to the eccentric position of the reinforcement, which may reduce considerably the maximum load resisted. Some recommendations about the optimum placement of the reinforcement are proposed.El presente estudio se centra en la caracterización del comportamiento de paneles tipo Sandwich con hormigón y EPS sometidos a cargas normales de compresión y teniendo en cuenta diferentes variables. Para ello, se han realizado campañas experimentales, cuyos resultados muestran que los aspectos geométricos, las propiedades de los materiales, la posición y la configuración del refuerzo influyen de manera significativa en la resistencia de los paneles. Asimismo se propone una formulación analítica para estimar la máxima carga resistida por los mismos. El estudio muestra que es especialmente importante definir la posición de las armaduras en la sección transversal ya que la excentricidad de las mismas reduce la resistencia a compresión de los paneles.

  18. Global Simulation of Bioenergy Crop Productivity: Analytical Framework and Case Study for Switchgrass

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Shujiang [ORNL; Kline, Keith L [ORNL; Nair, S. Surendran [University of Tennessee, Knoxville (UTK); Nichols, Dr Jeff A [ORNL; Post, Wilfred M [ORNL; Brandt, Craig C [ORNL; Wullschleger, Stan D [ORNL; Wei, Yaxing [ORNL; Singh, Nagendra [ORNL

    2013-01-01

    A global energy crop productivity model that provides geospatially explicit quantitative details on biomass potential and factors affecting sustainability would be useful, but does not exist now. This study describes a modeling platform capable of meeting many challenges associated with global-scale agro-ecosystem modeling. We designed an analytical framework for bioenergy crops consisting of six major components: (i) standardized natural resources datasets, (ii) global field-trial data and crop management practices, (iii) simulation units and management scenarios, (iv) model calibration and validation, (v) high-performance computing (HPC) simulation, and (vi) simulation output processing and analysis. The HPC-Environmental Policy Integrated Climate (HPC-EPIC) model simulated a perennial bioenergy crop, switchgrass (Panicum virgatum L.), estimating feedstock production potentials and effects across the globe. This modeling platform can assess soil C sequestration, net greenhouse gas (GHG) emissions, nonpoint source pollution (e.g., nutrient and pesticide loss), and energy exchange with the atmosphere. It can be expanded to include additional bioenergy crops (e.g., miscanthus, energy cane, and agave) and food crops under different management scenarios. The platform and switchgrass field-trial dataset are available to support global analysis of biomass feedstock production potential and corresponding metrics of sustainability.

  19. Global Simulation of Bioenergy Crop Productivity: Analytical framework and Case Study for Switchgrass

    Energy Technology Data Exchange (ETDEWEB)

    Nair, S. Surendran [University of Tennessee, Knoxville (UTK); Nichols, Jeff A. {Cyber Sciences} [ORNL; Post, Wilfred M [ORNL; Wang, Dali [ORNL; Wullschleger, Stan D [ORNL; Kline, Keith L [ORNL; Wei, Yaxing [ORNL; Singh, Nagendra [ORNL; Kang, Shujiang [ORNL

    2014-01-01

    Contemporary global assessments of the deployment potential and sustainability aspects of biofuel crops lack quantitative details. This paper describes an analytical framework capable of meeting the challenges associated with global scale agro-ecosystem modeling. We designed a modeling platform for bioenergy crops, consisting of five major components: (i) standardized global natural resources and management data sets, (ii) global simulation unit and management scenarios, (iii) model calibration and validation, (iv) high-performance computing (HPC) modeling, and (v) simulation output processing and analysis. A case study with the HPC- Environmental Policy Integrated Climate model (HPC-EPIC) to simulate a perennial bioenergy crop, switchgrass (Panicum virgatum L.) and global biomass feedstock analysis on grassland demonstrates the application of this platform. The results illustrate biomass feedstock variability of switchgrass and provide insights on how the modeling platform can be expanded to better assess sustainable production criteria and other biomass crops. Feedstock potentials on global grasslands and within different countries are also shown. Future efforts involve developing databases of productivity, implementing global simulations for other bioenergy crops (e.g. miscanthus, energycane and agave), and assessing environmental impacts under various management regimes. We anticipated this platform will provide an exemplary tool and assessment data for international communities to conduct global analysis of biofuel biomass feedstocks and sustainability.

  20. Fundamental and analytical studies of optical emission from the Mach disk extracted from an ICP

    Energy Technology Data Exchange (ETDEWEB)

    Luan, S.; Pang, H.; Houk, R.S. [Iowa State Univ., Ames, IA (United States)

    1994-12-31

    An inductively coupled plasma is extracted into a small quartz vacuum chamber (approximately 1 torr) through a sampling orifice in a copper disk. Optical emission from the Mach disk region is measured with a new type of echelle spectrometer with two segmented-array charge-coupled device detectors (SCD), the Optima 3000 from Perkin-Elmer. This detector provides excellent quantum efficiency throughout the UV-visible region, as well as low dark current and readout noises. The spectral background emitted by the Mach disk is very low. If analyte line intensities from the Mach disk can be enhanced, the combined ICP-Mach disk-Optima instrument should provide excellent detection limits for simultaneous multielement analysis. Axial profiles of the optical emission of various atom and ion lines are measured. Intensities of various lines are maximized at the Mach disk location. The relationship between the location of the Mach disk and the vacuum operating pressure is studied, using a cathetometer to measure small changes in the location of the Mach disk. The effects of aerosol gas flow rate on the intensities of various lines are also investigated. Finally, several schemes for boosting the intensity from the Mach disk will be presented.

  1. Hyperactive Children are at Risk of Dental Caries -An Analytical Study

    Directory of Open Access Journals (Sweden)

    C Jeevika

    2013-01-01

    Full Text Available Background: Attention-deficit/hyperactivity disorder (ADHD is well recognized in western countries, but there were no much reports of ADHD from India. Aim: To determine the relationship of ADHD with dental caries. Materials & Method : A cross-sectional analytical study was carried out among 120 children aged around 8-15 years who were randomly selected from normal and special schools located in Chennai city. The children were categorized as ADHD according to the criteria of Diagnostic and Statistical Manual of Mental Disorders (DSM-IV.The questionnaire was given to parents and teachers. It included details of DSM- IV criteria, age, sex, demographic details, past dental history, hours diet chart and any medication taken previously. The oral hygiene status was assessed using Oral Hygiene index simplified (OHI-S and the caries experience was recorded using DMFT index. Categorical data were compared by the Chi-square test. The odds ratio (OR was calculated with logistic regression. A multivariate analysis was carried out to adjust for gender, dental caries status of primary and permanent teeth. Results : Males are more in ADHD group when compared to females. Oral Hygiene Status of ADHD group was significantly better than control group. ADHD children were 3.1 times more odds of getting dental caries than children in the control group.

  2. Interaction of airborne and structureborne noise radiated by plates. Volume 1: Analytical study

    Science.gov (United States)

    Mcgary, M. C.

    1986-01-01

    The interaction of airborne and structureborne noise radiated by aircraft materials was examined. The theory and results of several computer simulations of the noise radiated by thin, isotropic, rectangular aluminum plates due to fully coherent combined acoustic and vibrational inputs is presented. The most significant finding was the extremely large influence that the relative phase between inputs has on the combined noise radiation of the plates. Phase dependent effects manifest themselves as cross terms in both the dynamic and acoustic portions of the analysis. Computer simulations show that these cross terms can radically alter the combined sound power radiated by plates constructed of aircraft-type materials. The results suggest that airborne-structureborne interactive effects could be responsible for a significant portion of the overall noise radiated by aircraft-type structures in the low frequency regime. This implies that previous analytical and experimental studies may have neglected an important physical phenomenon in the analayses of the interior noise of propeller dirven aircraft.

  3. Fighting falsified medicines with paperwork – a historic review of Danish legislation governing distribution of medicines

    OpenAIRE

    Borup, Rasmus; Kaae, Susanne; Minssen, Timo; Traulsen, Janine

    2016-01-01

    Background Many areas of pharmaceutical legislation in the European Union (EU) are harmonised in order to promote the internal market and protect public health. Ideally, harmonisation leads to less fragmented regulation and cross-border complexities. This study, however, focuses on an increasingly harmonised legislative area that is subject to increases in requirements and complexities: the distribution of medicines. This study compared Danish legislation governing the distribution of medicin...

  4. Toward a quality guide to facilitate the transference of analytical methods from research to testing laboratories: a case study.

    Science.gov (United States)

    Bisetty, Krisnha; Gumede, Njabulo Joyfull; Escuder-Gilabert, Laura; Sagrado, Salvador

    2009-01-01

    At present, there is no single viewpoint that defines QA strategies in analytical chemistry. On the other hand, there are no unique protocols defining a set of analytical tasks and decision criteria to be performed during the method development phase (e.g., by a single research laboratory) in order to facilitate the transference to the testing laboratories intending to adapt, validate, and routinely use this method. This study proposes general criteria, a priori valid for any developed method, recommended as a provisional quality guide containing the minimum internal tasks necessary to publish new analytical method results. As an application, the selection of some basic internal quality tasks and the corresponding accepted criteria are adapted to a concrete case study: indirect differential pulse polarographic determination of nitrate in water samples according to European Commission requisites. Extra tasks to be performed by testing laboratories are also outlined.

  5. Recommendations for European health data protection legislation.

    Science.gov (United States)

    Callens, S; Nys, H

    1996-01-01

    In year 1 of the SEISMED project, the Katholieke Universiteit Leuven coordinated the inventory and analysis of medical personal data protection legislation in Europe. A report on legal issues of medical data protection legislation in Europe was written by the Vrije Universiteit Amsterdam, the Centre National pour la Recherche Scientifique (Paris) and the University College Dublin. This report served as a basis for a second important legal deliverable, i.e. the Health Informatics Deontology Code. In this third and final report, we take into account the results of the other two legal reports and we formulate recommendations for the national and European legislator. This report analyses critically the upcoming privacy directive. We propose several recommendations which should be taken into account by the European and national legislator. We focused quite extensively on the use of medical data for research purposes. We had several reasons to do this. One of them is the fact that the use of medical data for research purposes is very popular, in particular now the health care sector is becoming more and more 'standardized' by using computers, networksystems and telematics. Legislation is therefore needed. Moreover, the use of medical data for research purposes involves the transfer of data from one Member State to another. Therefore, a harmonized legislation is really needed. We hope that the recommendations we propose, will be taken into consideration by the European legislator.

  6. Hawaii state legislator views on e-cigarettes and likelihood of legislative action.

    Science.gov (United States)

    Juarez, Deborah Taira; Seto, Jason; Guimaraes, Alexander; Masterson, James; Davis, James; Seto, Todd B

    2015-01-01

    To examine perspectives on e-cigarette use and regulations in Hawaii through key informant interviews with state legislators. E-cigarette use is rapidly increasing, with sales in 2013 topping $1 billion in the United States, but e-cigarettes are still a largely unregulated industry. Although e-cigarettes are thought by most to be a healthier alternative to traditional cigarettes, long-term health effects are not yet known. Semistructured key informant interviews were conducted with Hawaii state legislators (n = 15). We found a lack of consensus among legislators, which suggests that substantial legislative action is unlikely in the upcoming session. However, most legislators believe that some type of incremental legislation will pass, such as enactment of a small tax, limitations on advertising to protect adolescents, or regulations concerning where people can use e-cigarettes. Legislators eagerly await further research to clarify the overall benefits and harms of e-cigarettes at both the individual and population levels.

  7. Medical legislation - educational needs assessment for dental students.

    Science.gov (United States)

    Piţuru, S M; Nanu, A; Bucur, A

    2017-01-01

    Rationale (hypothesis): Many studies have highlighted the vulnerabilities in medical practice due to the legislation ignorance. Therefore, developing special programs for students training is needed and has become imperative. Objective: This research aimed to identify the educational needs for the 5th year students in "Carol Davila" School of Dentistry in Bucharest, related to the legislation in dentistry and its area of application. Methods and results: 199 students were invited to respond to a specially designed questionnaire. The questionnaire had 11 closed-response questions and the answers were statistically analyzed. The results indicated many educational needs in all the areas of investigation. Discussion: "Carol Davila" University of Medicine and Pharmacy is the first university in Romania that created a new discipline in the School of Dentistry, called Work Organization and Legislation in Medicine and Dentistry.

  8. Medical legislation – educational needs assessment for dental students

    Science.gov (United States)

    Piţuru, SM; Nanu, A; Bucur, A

    2017-01-01

    Rationale (hypothesis): Many studies have highlighted the vulnerabilities in medical practice due to the legislation ignorance. Therefore, developing special programs for students training is needed and has become imperative. Objective: This research aimed to identify the educational needs for the 5th year students in “Carol Davila” School of Dentistry in Bucharest, related to the legislation in dentistry and its area of application. Methods and results: 199 students were invited to respond to a specially designed questionnaire. The questionnaire had 11 closed-response questions and the answers were statistically analyzed. The results indicated many educational needs in all the areas of investigation. Discussion: “Carol Davila” University of Medicine and Pharmacy is the first university in Romania that created a new discipline in the School of Dentistry, called Work Organization and Legislation in Medicine and Dentistry. PMID:28255379

  9. New insights into the ageing of linseed oil paint binder: a qualitative and quantitative analytical study.

    Directory of Open Access Journals (Sweden)

    Ilaria Bonaduce

    Full Text Available This paper presents an analytical investigation of paint reconstructions prepared with linseed oil that have undergone typical 19th century treatments in preparation for painting. The oil was mechanically extracted from the same seed lot, which was then processed by various methods: water washing, heat treatments, and the addition of driers, with and without heat. A modern process lead white (Dutch source, Schoonhoven and a commercially available vine black were used as pigments. The reconstructions were prepared in 1999, and naturally aged from then onwards. We compared thermogravimetric analysis (TG, which yields macromolecular information, with gas chromatography-mass spectrometry (GC-MS and direct exposure mass spectrometry (DEMS, which both provide molecular information. The study enabled us to quantitatively demonstrate, for the first time, that the parameters used to identify drying oils are deeply influenced by the history of the paint. In particular, here we show that the ratio between the relative amounts of palmitic and stearic acid (P/S, which is used as an index for differentiating between drying oils, is extremely dependent on the pigments present and the age of the paint. Moreover the study revealed that neither the P/S parameter nor the ratios between the relative amounts of the various dicarboxylic acids (azelaic over suberic and azelaic over sebacic can be used to trace the sorts of pre-treatment undergone by the oil investigated in this study. The final results represent an important milestone for the scientific community working in the field, highlighting that further research is still necessary to solve the identification of drying oils in works of art.

  10. Influence of genotyping error in linkage mapping for complex traits – an analytic study

    Directory of Open Access Journals (Sweden)

    van Houwelingen Hans C

    2008-08-01

    Full Text Available Abstract Background Despite the current trend towards large epidemiological studies of unrelated individuals, linkage studies in families are still thoroughly being utilized as tools for disease gene mapping. The use of the single-nucleotide-polymorphisms (SNP array technology in genotyping of family data has the potential to provide more informative linkage data. Nevertheless, SNP array data are not immune to genotyping error which, as has been suggested in the past, could dramatically affect the evidence for linkage especially in selective designs such as affected sib pair (ASP designs. The influence of genotyping error on selective designs for continuous traits has not been assessed yet. Results We use the identity-by-descent (IBD regression-based paradigm for linkage testing to analytically quantify the effect of simple genotyping error models under specific selection schemes for sibling pairs. We show, for example, that in extremely concordant (EC designs, genotyping error leads to decreased power whereas it leads to increased type I error in extremely discordant (ED designs. Perhaps surprisingly, the effect of genotyping error on inference is most severe in designs where selection is least extreme. We suggest a genomic control for genotyping errors via a simple modification of the intercept in the regression for linkage. Conclusion This study extends earlier findings: genotyping error can substantially affect type I error and power in selective designs for continuous traits. Designs involving both EC and ED sib pairs are fairly immune to genotyping error. When those designs are not feasible the simple genomic control strategy that we suggest offers the potential to deliver more robust inference, especially if genotyping is carried out by SNP array technology.

  11. Report of the Environmental Legislation Review Panel

    Energy Technology Data Exchange (ETDEWEB)

    1991-01-01

    A review panel was established in October 1990 to hold public meetings throughout Alberta for providing the public with opportunities to express their views on draft environmental legislation. Overviews of public comments and review panel recommendations regarding the draft legislation are summarized in such categories as sustainable development, discretionary powers, environmental impact assessments, approvals, contaminant releases, conservation and reclamation, waste minimization and recycling, the polluter-pays concept, the role of local government, dispute resolution mechanisms, protected areas, environmental protection orders, and enforcement of the legislation.

  12. An AMS method to determine analyte recovery from pharmacokinetic studies with concomitant extravascular and intravenous administration.

    Science.gov (United States)

    Lappin, Graham; Seymour, Mark; Young, Graeme; Higton, David; Hill, Howard M

    2011-02-01

    The absolute bioavailability, clearance and volume of distribution of a drug can be investigated by administering a very low dose of the (14)C-drug intravenously along with a therapeutic nonlabeled dose by the extravascular route (typically orally). The total drug concentration is measured by an assay such as LC-MS and the (14)C-drug is measured by accelerator MS (AMS). In another article in this issue, a method validation is proposed where AMS was used as the analytical assay. Part of the validation is to assess the recovery of the analyte being measured as this has a direct impact on its quantification. In this article, a method of internal standardisation is described where the UV response of the nonlabeled analyte, spiked in excess into the matrix being analysed, is used for internal standardization. The method allows for the recovery of analyte to be measured in each individual sample being analysed. It is important to know the recovery of a (14)C-labeled analyte when determining its mass concentration from (14)C:(12)C isotopic ratio data using AMS. A method is reported in this article that utilizes the UV response of the nonlabeled drug for internal standardization, so that the recovery for each individual sample analyzed can be ascertained.

  13. Big Data Analytics for Smart Manufacturing: Case Studies in Semiconductor Manufacturing

    Directory of Open Access Journals (Sweden)

    James Moyne

    2017-07-01

    Full Text Available Smart manufacturing (SM is a term generally applied to the improvement in manufacturing operations through integration of systems, linking of physical and cyber capabilities, and taking advantage of information including leveraging the big data evolution. SM adoption has been occurring unevenly across industries, thus there is an opportunity to look to other industries to determine solution and roadmap paths for industries such as biochemistry or biology. The big data evolution affords an opportunity for managing significantly larger amounts of information and acting on it with analytics for improved diagnostics and prognostics. The analytics approaches can be defined in terms of dimensions to understand their requirements and capabilities, and to determine technology gaps. The semiconductor manufacturing industry has been taking advantage of the big data and analytics evolution by improving existing capabilities such as fault detection, and supporting new capabilities such as predictive maintenance. For most of these capabilities: (1 data quality is the most important big data factor in delivering high quality solutions; and (2 incorporating subject matter expertise in analytics is often required for realizing effective on-line manufacturing solutions. In the future, an improved big data environment incorporating smart manufacturing concepts such as digital twin will further enable analytics; however, it is anticipated that the need for incorporating subject matter expertise in solution design will remain.

  14. Analytic materials.

    Science.gov (United States)

    Milton, Graeme W

    2016-11-01

    The theory of inhomogeneous analytic materials is developed. These are materials where the coefficients entering the equations involve analytic functions. Three types of analytic materials are identified. The first two types involve an integer p. If p takes its maximum value, then we have a complete analytic material. Otherwise, it is incomplete analytic material of rank p. For two-dimensional materials, further progress can be made in the identification of analytic materials by using the well-known fact that a 90(°) rotation applied to a divergence-free field in a simply connected domain yields a curl-free field, and this can then be expressed as the gradient of a potential. Other exact results for the fields in inhomogeneous media are reviewed. Also reviewed is the subject of metamaterials, as these materials provide a way of realizing desirable coefficients in the equations.

  15. Analytic Materials

    CERN Document Server

    Milton, Graeme W

    2016-01-01

    The theory of inhomogeneous analytic materials is developed. These are materials where the coefficients entering the equations involve analytic functions. Three types of analytic materials are identified. The first two types involve an integer $p$. If $p$ takes its maximum value then we have a complete analytic material. Otherwise it is incomplete analytic material of rank $p$. For two-dimensional materials further progress can be made in the identification of analytic materials by using the well-known fact that a $90^\\circ$ rotation applied to a divergence free field in a simply connected domain yields a curl-free field, and this can then be expressed as the gradient of a potential. Other exact results for the fields in inhomogeneous media are reviewed. Also reviewed is the subject of metamaterials, as these materials provide a way of realizing desirable coefficients in the equations.

  16. Contextual Determinants of Childhood Injury: A Systematic Review of Studies With Multilevel Analytic Methods.

    Science.gov (United States)

    McClure, Rod; Kegler, Scott; Davey, Tamzyn; Clay, Fiona

    2015-12-01

    The definition of injury that underpins the contemporary approach to injury prevention is an etiological definition relating to bodily damage arising from transfer of energy to tissues of the body beyond the limits compatible with physiological function. Causal factors proximal to the energy transfer are nested within a more complex set of contextual determinants. For effective injury control, understanding of these determinants is critical. The primary aims of this study were to describe the area-level determinants that have been included in multilevel analyses of childhood injury and to quantify the relationships between these area-level exposures and injury outcomes. We conducted a systematic review of peer-reviewed, English-language literature published in scientific journals between January 1997 and July 2014, reporting studies that employed multilevel analyses to quantify the eco-epidemiological causation of physical unintentional injuries to children aged 16 years and younger. We conducted and reported the review in accordance with the PRISMA guidelines. We included etiological studies of causal risk factors for unintentional traumatic injuries to children aged 0 to 16 years. Methodological inclusion criteria were as follows: Epidemiological studies quantifying the relationship between risk factors (at various levels) and injury occurrence in the individual; Studies that recognized individual exposure and at least 1 higher level of exposure with units at lower levels or microunits (e.g., individuals) nested within units at higher levels or macrounits (e.g., areas or neighborhoods); Injury outcomes (dependent variable) examined at the individual level; and Central analytic techniques belonging to the following categories: multilevel models, hierarchical models, random effects models, random coefficient models, covariance components models, variance components models, and mixed models. We combined criteria from the checklist described by the Cochrane Effective

  17. Analytic trigonometry

    CERN Document Server

    Bruce, William J; Maxwell, E A; Sneddon, I N

    1963-01-01

    Analytic Trigonometry details the fundamental concepts and underlying principle of analytic geometry. The title aims to address the shortcomings in the instruction of trigonometry by considering basic theories of learning and pedagogy. The text first covers the essential elements from elementary algebra, plane geometry, and analytic geometry. Next, the selection tackles the trigonometric functions of angles in general, basic identities, and solutions of equations. The text also deals with the trigonometric functions of real numbers. The fifth chapter details the inverse trigonometric functions

  18. Experiments and analytical studies related to blowdown and containment thermal hydraulics on CSF

    Energy Technology Data Exchange (ETDEWEB)

    Dutta, Anu, E-mail: adutta@barc.gov.in; Thangamani, I.; Shanware, V.M.; Rao, K.S.; Gera, B.; Ravi Kiran, A.; Goyal, P.; Verma, Vishnu; Sharma, P.K.; Agrawal, M.K.; Ganju, S.; Singh, R.K.

    2015-12-01

    Highlights: • Blowdown and containment thermal hydraulics experiments conducted in CSF. • RELAP5, ASTEC and CONTRAN codes used for analysis. • Containment peak pressure and temp predicted close to experimental values. • CONTRAN and ASTEC codes predict early containment depressurization. • Numerical procedure, benchmarked for loss of coolant accident in nuclear reactors. - Abstract: Containment Studies Facility (CSF) is volumetrically scaled down model of Indian Pressurized Heavy Water Reactor (IPHWR) containment for simulating LOCA/MSLB conditions which consists of concrete containment model (CM) and Primary Heat Transport Model (PHTM) vessel. Blowdown experiments at different initial vessel pressure conditions were recently conducted at CSF and the vessel and containment parameters such as pressure, temperature and level transients have been recorded during the experiments. The experimental results have been used for benchmarking of numerical procedure adopted for evaluating LOCA/MSLB conditions in nuclear containment. The numerical procedure involves simulation of blowdown phenomena using RELAP5 code for evaluating mass and energy discharge rates, which are then used for calculating containment pressure–temperature transients using ASTEC and in-house CONTRAN codes. Predictions of major parameters of vessel and containment model were found to be in good agreement with that of experimental data. In containment thermal hydraulic calculations, condensation heat transfer coefficient affects the containment pressure–temperature transients. Various empirical condensation models like Tagami, Uchida and Diffusion models have been incorporated in CONTRAN code and suitable condensation model has been identified for which predicted pressure values are close to the experimental one. The details of the experimental and analytical studies conducted are presented in this paper.

  19. Caregiver's education level and child's dental caries in African Americans: A path analytic study

    Science.gov (United States)

    Heima, Masahiro; Lee, Wonik; Milgrom, Peter; Nelson, Suchitra

    2015-01-01

    The objective of this study was to investigate the influence of caregiver education level on children's dental caries mediated by both caregiver and child oral health behaviors. Participants were 423 low-income African American kindergarteners and their caregivers who were part of a school-based randomized clinical trial. Path analysis tested the hypothesis that caregiver education level affected untreated dental caries and cumulative overall caries experience (decayed or filled teeth) through the mediating influence of frequency of dental visits, use of routine care, and frequency of toothbrushing for both caregiver and child. The results supported the hypothesis: Caregivers who completed high school were 1.76 times more likely to visit dentists themselves compared with those who did not complete high school (e0.56=1.76, 95%CI: 1.03-2.99), which in turn was associated with 5.78 times greater odds of dental visits among their children (e1.76=5.78, 95%CI: 3.53-9.48). Children's dental visits, subsequently, were associated with 26% fewer untreated decayed teeth compared with children without dental visits (e-0.31=0.74, 95%CI: 0.60-0.91). However, this path was not present in the model with overall caries experience. Additionally, caregiver education level was directly associated with 34% less untreated decayed teeth (e-0.42=0.66, 95% CI: 0.54-0.79) and 28% less decayed or filled teeth (e-0.32=0.72, 95%CI: 0.60-0.88) among the children. This study overcomes important conceptual and analytic limitations in the existing literature. The findings confirm the role of caregiver education in child dental caries and indicate that caregiver's behavioral factors are important mediators of child oral health. PMID:25661111

  20. Narrative competence among hearing-impaired and normal-hearing children: analytical cross-sectional study

    Directory of Open Access Journals (Sweden)

    Alexandra Dezani Soares

    Full Text Available CONTEXT AND OBJECTIVE: Oral narrative is a means of language development assessment. However, standardized data for deaf patients are scarce. The aim here was to compare the use of narrative competence between hearing-impaired and normal-hearing children. DESIGN AND SETTING: Analytical cross-sectional study at the Department of Speech-Language and Hearing Sciences, Universidade Federal de São Paulo. METHODS: Twenty-one moderately to profoundly bilaterally hearing-impaired children (cases and 21 normal-hearing children without language abnormalities (controls, matched according to sex, age, schooling level and school type, were studied. A board showing pictures in a temporally logical sequence was presented to each child, to elicit a narrative, and the child's performance relating to narrative structure and cohesion was measured. The frequencies of variables, their associations (Mann-Whitney test and their 95% confidence intervals was analyzed. RESULTS: The deaf subjects showed poorer performance regarding narrative structure, use of connectives, cohesion measurements and general punctuation (P < 0.05. There were no differences in the number of propositions elaborated or in referent specification between the two groups. The deaf children produced a higher proportion of orientation-related propositions (P = 0.001 and lower proportions of propositions relating to complicating actions (P = 0.015 and character reactions (P = 0.005. CONCLUSION: Hearing-impaired children have abnormalities in different aspects of language, involving form, content and use, in relation to their normal-hearing peers. Narrative competence was also associated with the children's ages and the school type.

  1. Analytical Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — The Analytical Labspecializes in Oil and Hydraulic Fluid Analysis, Identification of Unknown Materials, Engineering Investigations, Qualification Testing (to support...

  2. Environmental policy, legislation and management of persistent organic pollutants (POPs) in China.

    Science.gov (United States)

    Lau, Melody Hoi Yin; Leung, Kenneth Mei Yee; Wong, Stella Wing Yu; Wang, Hong; Yan, Zhen-Guang

    2012-06-01

    Since early 1980s, chemical pollution has become a serious environmental problem in rapidly developing China. This study reviewed the policy and legal framework for monitoring and management of chemical pollutants in China, with reference to the relevant experience in other jurisdictions. Although efforts in environmental monitoring of chemical contamination have been substantially increased over the last decade, China is lagging behind in terms of nationwide monitoring of chemical contamination in human population, and standardization of sampling and analytical protocols. While actively participating in various international treaties and conventions related to pollution control, China also has a very comprehensive set of environmental laws and policies. These include the newly enacted legislation on the control of new chemicals (i.e., China REACH) and the development of a set of National Environmental Standards. In addition to environmental education, these new measures will further enhance the control of chemical pollutants and facilitate effective law enforcement.

  3. An overview of analytical techniques and methods for the study and preservation of artistic and archaeological bronzes.

    Science.gov (United States)

    Mazzeo, Rocco; Prati, Silvia; Quaranta, Marta; Sciutto, Giorgia

    The present review intends to give an overview on the type of information that is possible to gather from the application of different non-invasive and micro-destructive analytical techniques. Typically, methods that require the withdrawal of a sample, such as metallography, SEM-EDS, AAS, FTIR and Py-GC-MS are employed. Through their use, it is possible to identify the material constitution, to evaluate the degradation behavior and the state of conservation of excavated bronze artefacts. It is also underlined how a non-invasive approach might be used whenever no sampling is allowed, though some limitation should be considered. Furthermore, analytical techniques play an important role in the characterisation and evaluation of the effectiveness of protective coatings and corrosion inhibitors before and after restoration procedures. An interesting aspect is the implication of science for the recognition of forgeries, when analytical studies provide evidences able to prove or deny objects' authenticity.

  4. Study on the Explicit Formula of the Triangular Flat Shell Element Based on the Analytical Trial Functions for Anisotropy Material

    Directory of Open Access Journals (Sweden)

    Xiang-Rong Fu

    2013-01-01

    Full Text Available This paper presents a novel way to formulate the triangular flat shell element. The basic analytical solutions of membrane and bending plate problem for anisotropy material are studied separately. Combining with the conforming displacement along the sides and hybrid element strategy, the triangular flat shell elements based on the analytical trial functions (ATF for anisotropy material are formulated. By using the explicit integral formulae of the triangular element, the matrices used in proposed shell element are calculated efficiently. The benchmark examples showed the high accuracy and high efficiency.

  5. Cognitive-analytical therapy for a patient with functional neurological symptom disorder-conversion disorder (psychogenic myopia: A case study

    Directory of Open Access Journals (Sweden)

    Hamid Nasiri

    2015-01-01

    Full Text Available Functional neurological symptom disorder commonly presents with symptoms and defects of sensory and motor functions. Therefore, it is often mistaken for a medical condition. It is well known that functional neurological symptom disorder more often caused by psychological factors. There are three main approaches namely analytical, cognitive and biological to manage conversion disorder. Any of such approaches can be applied through short-term treatment programs. In this case, study a 12-year-old boy with the diagnosed functional neurological symptom disorder (psychogenic myopia was put under a cognitive-analytical treatment. The outcome of this treatment modality was proved successful.

  6. Cognitive-analytical therapy for a patient with functional neurological symptom disorder-conversion disorder (psychogenic myopia): A case study.

    Science.gov (United States)

    Nasiri, Hamid; Ebrahimi, Amrollah; Zahed, Arash; Arab, Mostafa; Samouei, Rahele

    2015-05-01

    Functional neurological symptom disorder commonly presents with symptoms and defects of sensory and motor functions. Therefore, it is often mistaken for a medical condition. It is well known that functional neurological symptom disorder more often caused by psychological factors. There are three main approaches namely analytical, cognitive and biological to manage conversion disorder. Any of such approaches can be applied through short-term treatment programs. In this case, study a 12-year-old boy with the diagnosed functional neurological symptom disorder (psychogenic myopia) was put under a cognitive-analytical treatment. The outcome of this treatment modality was proved successful.

  7. Passive scalar mixing: Analytic study of time scale ratio, variance, and mix rate

    Science.gov (United States)

    Ristorcelli, J. R.

    2006-07-01

    Some very reasonable approximations, consistent with numerical and experimental evidence, were applied to the skewness and palinstrophy coefficients in the dissipation equations to produce a simple closed moment model for mixing. Such a model, first suggested on the grounds of a Taylor microscale self-similarity of the scalar field, was studied numerically by Gonzalez and Fall ["The approach to self-preservation of scalar fluctuation decay in isotropic turbulence," Phys. Fluids 10, 654 (1998)]. Here, in a somewhat old fashioned and physically meaningful style, analytic solutions to the four coupled nonlinear moment equations for mixing by decaying and forced stationary turbulence, are given. Analytic expressions for the variance ⟨c2⟩, the mixing rate ɛc, and the time scale ratio r(t ) are derived and compared in different mixing situations. The solutions show the sensitive dependence on the initial relative length ratio as studied experimentally by Warhaft and Lumley ["An experimental study of the decay of temperature fluctuations in grid-generated turbulence," J. Fluid Mech. 88, 659 (1978)], and simulated by Eswaran and Pope ["Direct numerical simulation of the turbulent mixing of a passive scalar," Phys. Fluids 31, 506 (1988)]. The length scale ratio saturation effect predicted by Durbin ["Analysis of the decay of temperature fluctuations in isotropic turbulence," Phys. Fluids 25, 1328 (1982)], resolving the apparent contradiction with the results of Sreenivasan, Tavoularis, and Corrsin ["Temperature fluctuations and scales in grid generated turbulence," J. Fluid Mech. 100, 597 (1980)] is predicted. For stationary turbulence the solutions indicate, in contradistinction to the power law "stirring" result predicted by a stochastic Lagrangian analysis, that the mixing is asymptotically exponential as shown in the phenomenological analysis of Corrsin ["The isotropic turbulent mixer," AIChE J. 10, 870 (1964)]. That the time scale ratio solution also depends on

  8. Blended Learning Analytics Model for Evaluation (BLAME). Et case-studie af universitetsunderviseres brug af Blackboard

    DEFF Research Database (Denmark)

    Musaeus, Peter; Bennedsen, Andreas Brændstrup; Hansen, Janne Saltoft

    2015-01-01

    I denne artikel vil vi præsentere en strategi til inddragelse af læringsanalytik (learning analytics) ved evaluering af universitetsunderviseres brug af et nyt LMS på Aarhus Universitet: Blackboard. Vi diskuterer en model (BLAME: Blended Learning Analytics Model of Evaluation) for, hvordan...... kategorisering af kurser og data om læringsanalytik indsamlet på Blackboard kan integreres. Endvidere belyser vi, hvilke implikationer en sådan læringsanalytik kan have for blended learning ved at analysere to forskellige uddannelses-cases/illustrationer. Dernæst diskuterer vi pædagogisk udvikling i forbindelse...

  9. Blended Learning Analytics Model for Evaluation (BLAME). Et case-studie af universitetsunderviseres brug af Blackboard

    DEFF Research Database (Denmark)

    Musaeus, Peter; Bennedsen, Andreas Brændstrup; Hansen, Janne Saltoft

    2015-01-01

    I denne artikel vil vi præsentere en strategi til inddragelse af læringsanalytik (learning analytics) ved evaluering af universitetsunderviseres brug af et nyt LMS på Aarhus Universitet: Blackboard. Vi diskuterer en model (BLAME: Blended Learning Analytics Model of Evaluation) for, hvordan...... kategorisering af kurser og data om læringsanalytik indsamlet på Blackboard kan integreres. Endvidere belyser vi, hvilke implikationer en sådan læringsanalytik kan have for blended learning ved at analysere to forskellige uddannelses-cases/illustrationer. Dernæst diskuterer vi pædagogisk udvikling i forbindelse...

  10. Analytical mechanics

    CERN Document Server

    Helrich, Carl S

    2017-01-01

    This advanced undergraduate textbook begins with the Lagrangian formulation of Analytical Mechanics and then passes directly to the Hamiltonian formulation and the canonical equations, with constraints incorporated through Lagrange multipliers. Hamilton's Principle and the canonical equations remain the basis of the remainder of the text. Topics considered for applications include small oscillations, motion in electric and magnetic fields, and rigid body dynamics. The Hamilton-Jacobi approach is developed with special attention to the canonical transformation in order to provide a smooth and logical transition into the study of complex and chaotic systems. Finally the text has a careful treatment of relativistic mechanics and the requirement of Lorentz invariance. The text is enriched with an outline of the history of mechanics, which particularly outlines the importance of the work of Euler, Lagrange, Hamilton and Jacobi. Numerous exercises with solutions support the exceptionally clear and concise treatment...

  11. The Role of Teamwork in the Analysis of Big Data: A Study of Visual Analytics and Box Office Prediction.

    Science.gov (United States)

    Buchanan, Verica; Lu, Yafeng; McNeese, Nathan; Steptoe, Michael; Maciejewski, Ross; Cooke, Nancy

    2017-03-01

    Historically, domains such as business intelligence would require a single analyst to engage with data, develop a model, answer operational questions, and predict future behaviors. However, as the problems and domains become more complex, organizations are employing teams of analysts to explore and model data to generate knowledge. Furthermore, given the rapid increase in data collection, organizations are struggling to develop practices for intelligence analysis in the era of big data. Currently, a variety of machine learning and data mining techniques are available to model data and to generate insights and predictions, and developments in the field of visual analytics have focused on how to effectively link data mining algorithms with interactive visuals to enable analysts to explore, understand, and interact with data and data models. Although studies have explored the role of single analysts in the visual analytics pipeline, little work has explored the role of teamwork and visual analytics in the analysis of big data. In this article, we present an experiment integrating statistical models, visual analytics techniques, and user experiments to study the role of teamwork in predictive analytics. We frame our experiment around the analysis of social media data for box office prediction problems and compare the prediction performance of teams, groups, and individuals. Our results indicate that a team's performance is mediated by the team's characteristics such as openness of individual members to others' positions and the type of planning that goes into the team's analysis. These findings have important implications for how organizations should create teams in order to make effective use of information from their analytic models.

  12. 10 CFR 51.88 - Proposals for legislation.

    Science.gov (United States)

    2010-01-01

    ...) Legislative Environmental Impact Statements-Proposals for Legislation § 51.88 Proposals for legislation. The... proposals for legislation. final environmental impact statements—general requirements ... 10 Energy 2 2010-01-01 2010-01-01 false Proposals for legislation. 51.88 Section 51.88...

  13. Legislative Action: The Possibility of Instant Retrenchment.

    Science.gov (United States)

    Jedamus, Paul

    1980-01-01

    Planning models developed at the University of Colorado, Boulder and resulting strategies for coping with legislated retrenchment are presented. Several areas for course of action are examined: contingency planning, planning for flexibility and enhancing real productivity. (LC)

  14. CDC STATE System Tobacco Legislation - Preemption

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2016. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation—Preemption. The STATE...

  15. CDC STATE System Tobacco Legislation - Smokefree Campus

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2016. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation – Smokefree Campuses....

  16. CDC STATE System Tobacco Legislation - Licensure

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2016. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation—Licensure. The STATE...

  17. New protein sources and food legislation

    DEFF Research Database (Denmark)

    Belluco, Simone; Halloran, Afton Marina Szasz; Ricci, Antonia

    2017-01-01

    Growing global food demand has generated a greater interest in the consumption of new and diversified protein sources. Novel foodstuffs represent a challenge for food law as they need proper safety assessments before obtaining market permission. The case of edible insects and European law is a good...... representation of this issue because a selection of food grade insect species may be available on the European market in the coming years. However, European legislation does not explicitly address edible insects. Consequently, this has left a grey area, allowing different interpretations of the legislation among...... Member States. The aim of this paper is to analyse the challenge of the safe management of edible insects in the context of the current legal framework. The current Novel Food legislation, as well as the forthcoming version of the legislation, will be analysed and discussed in relation to edible insects...

  18. CDC STATE System Tobacco Legislation - Preemption Summary

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2016. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation—Preemption. The STATE...

  19. CDC STATE System Tobacco Legislation - Advertising

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2015. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation – Advertising. The STATE...

  20. CDC STATE System Tobacco Legislation - Smokefree Campus

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2017. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation – Smokefree Campuses. The...

  1. CDC STATE System Tobacco Legislation - Smokefree Campus

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2016. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation – Smokefree Campuses. The...

  2. CDC STATE System Tobacco Legislation - Preemption Summary

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2017. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation—Preemption. The STATE...

  3. CDC STATE System Tobacco Legislation - Fire Safety

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2016. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation – Fire-Safety. The STATE...

  4. CDC STATE System Tobacco Legislation - Youth Access

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2016. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation—Youth Access. The STATE...

  5. CDC STATE System Tobacco Legislation - Tax

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2017. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation-Tax. The STATE System...

  6. CDC STATE System Tobacco Legislation - Tax

    Data.gov (United States)

    U.S. Department of Health & Human Services — 1995-2016. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation-Tax. The STATE System...

  7. A Move-Analytic Contrastive Study on the Introductions of American and Philippine Master's Theses in Architecture

    Science.gov (United States)

    Lintao, Rachelle B.; Erfe, Jonathan P.

    2012-01-01

    This study purports to foster the understanding of profession-based academic writing in two different cultural conventions by examining the rhetorical moves employed by American and Philippine thesis introductions in Architecture using Swales' 2004 Revised CARS move-analytic model as framework. Twenty (20) Master's thesis introductions in…

  8. Analytical, Creative, and Practical Intelligence as Predictors of Self-reported Adaptive Functioning: A Case Study in Russia.

    Science.gov (United States)

    Grigorenko, Elena L.; Sternberg, Robert J.

    2001-01-01

    Studied the efficacy of the triarchic theory of intelligence as a basis for predicting adaptive functioning in a rapidly changing society, that of Russia. Results of intelligence measures administered to 452 women and 293 men show that analytical, practical, and creative intelligence all relate in some degree to self-reported everyday adaptive…

  9. Effects of Innovative Science and Mathematics Teaching on Student Attitudes and Achievement: A Meta-Analytic Study

    NARCIS (Netherlands)

    Savelsbergh, E.R.; Prins, G.T.; Rietbergen, C.; Fechner, S.; Vaessen, B.E.; Draijer, J.M.; Bakker, A.

    2016-01-01

    Many teaching approaches have been tried to improve student attitudes and achievement in science and mathematics education. Achievement effects have been synthesized, but a systematic overview of attitude effects is missing. This study provides a meta analytic review based on 56 publications (1988-2

  10. Perforation of aluminium foam core sandwich panels under impact loading: A numerical and analytical study

    Directory of Open Access Journals (Sweden)

    Elnasri Ibrahim

    2015-01-01

    Full Text Available This paper reports the numerical results of the inversed perforation test instrumented with Split Hopkinson Pressure Bar SHPB with an instrumented pressure bar on the AlSi7Mg0.5 aluminium foam core sandwich panels with 0.8 mm thick 2024 T3 aluminium top and bottom skin. The numerical models are developed in order to understand the origin of the enhancement of the top skin loads found under impact loading (paper published by [1]. Numerical predicted piercing force vs displacement curves are compared with experimental measurements (tests at impact velocities at 27 and 44 m/s. The simulation catches all process of the perforation of the sandwich panels (top skin, foam core, and bottom skin. Within experimental scatter, there is a good agreement between numerical predictions and experimental measurements. Virtual tests with different impact velocities up 200 m/s are presented and showed a significant enhancement of the piercing force under impact loading (top skin peak and foam core plateau loads. In order to understand the origin of these force enhancements, any difference of detailed local information between static and dynamic loading is studied and showed that a shock front effect is responsible for the enhancement piercing force. An analytical model using an improved RPPL shock model based a power law densification assumption is proposed to calculate the top skin piercing force. The improved RPPL shock model agrees with the FE results for small velocities and gives better prediction of the piercing force than the RPPL shock model for large velocities (>100 m/s.

  11. Seismoelectric signals produced by mesoscopic heterogeneities: an analytical and numerical study

    Science.gov (United States)

    Linde, N.; Rosas Carbajal, M.; Rubino, J. G.; Monachesi, L. B.; Jougnot, D.; Holliger, K.

    2014-12-01

    The presence of mesoscopic heterogeneities, such as fractures, in fluid-saturated porous rocks can produce measurable seismoelectric signals due to wave-induced fluid flow between regions of differing compressibility. Wave-induced fluid flow is a well-known seismic attenuation mechanism, which evidences a strong frequency-dependence that is related to petrophysical and structural properties of the host rock. Therefore, seismoelectric signals arising from this mechanism are expected to depend on the same kind of parameters. However, these remain largely unexplored. In this work, we first propose a numerical approach for computing seismoelectric signals related to the presence of mesoscopic heterogeneities and explore its spectroscopic behavior. To obtain the explicit dependence of the seismoelectric signal on petrophysical and structural parameters, we derive an analytical solution to describe the seismoelectric response of a rock sample containing a horizontal layer at its center that is subjected to an oscillatory compressibility test. We then adapt this general solution to compute the seismoelectric signature of a particular case related to a sample that is permeated by a horizontal fracture. We find that the amplitude of the seismoelectric signal is directly proportional to the applied stress, to the Skempton coefficient contrast between the host rock and the layer, and to a weighted average of the effective excess charge of the two materials. Our results also demonstrate that the frequency at which the maximum electrical potential amplitude prevails is controlled by the permeability and thickness of the less permeable material. The results of this study thus indicate that seismoelectric measurements can potentially be used to estimate key mechanical and hydraulic rock properties, such as compressibility, permeability, and fracture normal compliance.

  12. Normal and Anomalous Diffusion: An Analytical Study Based on Quantum Collision Dynamics and Boltzmann Transport Theory.

    Science.gov (United States)

    Mahakrishnan, Sathiya; Chakraborty, Subrata; Vijay, Amrendra

    2016-09-15

    Diffusion, an emergent nonequilibrium transport phenomenon, is a nontrivial manifestation of the correlation between the microscopic dynamics of individual molecules and their statistical behavior observed in experiments. We present a thorough investigation of this viewpoint using the mathematical tools of quantum scattering, within the framework of Boltzmann transport theory. In particular, we ask: (a) How and when does a normal diffusive transport become anomalous? (b) What physical attribute of the system is conceptually useful to faithfully rationalize large variations in the coefficient of normal diffusion, observed particularly within the dynamical environment of biological cells? To characterize the diffusive transport, we introduce, analogous to continuous phase transitions, the curvature of the mean square displacement as an order parameter and use the notion of quantum scattering length, which measures the effective interactions between the diffusing molecules and the surrounding, to define a tuning variable, η. We show that the curvature signature conveniently differentiates the normal diffusion regime from the superdiffusion and subdiffusion regimes and the critical point, η = ηc, unambiguously determines the coefficient of normal diffusion. To solve the Boltzmann equation analytically, we use a quantum mechanical expression for the scattering amplitude in the Boltzmann collision term and obtain a general expression for the effective linear collision operator, useful for a variety of transport studies. We also demonstrate that the scattering length is a useful dynamical characteristic to rationalize experimental observations on diffusive transport in complex systems. We assess the numerical accuracy of the present work with representative experimental results on diffusion processes in biological systems. Furthermore, we advance the idea of temperature-dependent effective voltage (of the order of 1 μV or less in a biological environment, for example

  13. Perforation of aluminium foam core sandwich panels under impact loading: A numerical and analytical study

    Science.gov (United States)

    Elnasri, Ibrahim; Zhao, Han

    2015-09-01

    This paper reports the numerical results of the inversed perforation test instrumented with Split Hopkinson Pressure Bar SHPB with an instrumented pressure bar on the AlSi7Mg0.5 aluminium foam core sandwich panels with 0.8 mm thick 2024 T3 aluminium top and bottom skin. The numerical models are developed in order to understand the origin of the enhancement of the top skin loads found under impact loading (paper published by [1]). Numerical predicted piercing force vs displacement curves are compared with experimental measurements (tests at impact velocities at 27 and 44 m/s). The simulation catches all process of the perforation of the sandwich panels (top skin, foam core, and bottom skin). Within experimental scatter, there is a good agreement between numerical predictions and experimental measurements. Virtual tests with different impact velocities up 200 m/s are presented and showed a significant enhancement of the piercing force under impact loading (top skin peak and foam core plateau loads). In order to understand the origin of these force enhancements, any difference of detailed local information between static and dynamic loading is studied and showed that a shock front effect is responsible for the enhancement piercing force. An analytical model using an improved RPPL shock model based a power law densification assumption is proposed to calculate the top skin piercing force. The improved RPPL shock model agrees with the FE results for small velocities and gives better prediction of the piercing force than the RPPL shock model for large velocities (>100 m/s).

  14. Analytics study on the problem of two holes having arbitrary shapes and arrangements in plane elastostatics

    Institute of Scientific and Technical Information of China (English)

    ZHANG; Luqing

    2001-01-01

    [1]Pan Jiazheng, Stress analysis for two neighbor hydraulic tunnels, Underground Engineering (in Chinese), 1979, (2): 2.[2]Liu Xinyu, Hou Xueyuan, Stress analysis for parallel circular tunnels, Journal of Tongji University (in Chinese), 1985, (3): 15[3]Salerno, V. L., Mahoney, J. B., Stress solution for an infinite plate containing two arbitrary circular holes under equal bi-axial stresses, Journal of Engineering for Industry, Transactions of ASME, 1968, 35: 656.[4]Ukadgaonker, V. G., Stress analysis of a plate containing two circular holes having tangential stresses, AIAA Journal, 1980, 18: 125[5]Kim, T. J., Ukadgaonker, V. G., Plane stress analysis of two rigid circular inclusions, AIAA Journal, 1971, 9: 2294.[6]Ukadgaonker, V. G., Interaction effect of two arbitrarily oriented cracks, part I, International Journal of Fracture, 1991, 51: 219[7]Zhang Luqing, Lü Aizhong, Study of alternating method for stress analysis on surrounding rock of two circular holes, Chinese Journal of Rock Mechanics and Engineering (in Chinese), 1998, 17(5): 534.[8]Yu, I. W., Sendeckyj G. P., Multiple circular inclusion problems in plane elastostatics, Journal of Applied Mechanics, Transactions of ASME, 1974, 41: 215[9]Mikhlin, S. G., Method of successive approximation in solutions to biharmonic equations, Trudy, Seisomological, USSR, 1934, 39.[10]Soboleff, S., Schwarz algorithm in the theory of elasticity, Reports from Academy of Science, USSR, 1936, IV.[11]Chen Ziyin, Analytic Method of Mechanical Analysis for the Surrounding Rock (in Chinese), Beijing: Coal Industry Pub-lishing House, 1994, 70-76.[12]Lü Aizhong, Jiang Binsong, Reverse Problems in Rock Mechanics (in Chinese), Beijing: Coal Industry Publishing House, 1998, 164—171.

  15. Analytical and Experimental Studies of the Degradation in Hydrogenated Amorphous Silicon Solar Cells and Materials.

    Science.gov (United States)

    Yeung, Ping Fai

    1995-01-01

    An improved understanding of a-Si:H pin solar cells stability was obtained by studying light induced degradation in a-Si:H films and in devices. The current -voltage characteristics and the quantum efficiencies of a-Si:H pin solar cells were measured as a function of intrinsic layer thickness, bias light intensity and degradation condition. Photoconductivity measurements on device quality intrinsic a-Si:H thin film materials showed that the majority carrier (electron) mutau product degraded from 3times 10^{-7}rm cm ^2/V to 2times 10^{ -7}rm cm^2/V after 6 minutes of 50-Suns light illumination. Using a dual beam technique with steady white light and modulated monochromatic light, a degradation profile was detected in the degraded materials. These results suggest that inhomogeneous degradation may be important to understanding the stability of a-Si:H pin solar cells. An analytical model was developed for degradation in a-Si:H pin solar cells based on inhomogeneous degradation, which was used to explain the 'blue-dip' effect observed in the quantum efficiencies of degraded cells. A new method was developed to investigate the minority carrier (hole) diffusion length in device quality a-Si:H films as a function of degradation. This method uses the Schottky barrier structure to establish a depletion region, which can be controlled by the applied voltage and the bias light intensity. Modulated blue light is used to generate electron hole pairs near the ohmic contacts, and the holes diffuse across the neutral region to be collected. The modulated current is related to the diffusion length of the holes due to this current limiting hole transport. Comparing the results of this new technique to that of the Photocarrier Grating method, the electron drift mobility was found to degrade from rm 2.5cm^2/Vs to rm 0.15cm^2/Vs after 6 minutes of 50-Suns degradation.

  16. Incorporating nuclear vibrational energies into the "atom in molecules" analysis: An analytical study.

    Science.gov (United States)

    Gharabaghi, Masumeh; Shahbazian, Shant

    2017-04-21

    The quantum theory of atoms in molecules (QTAIM) is based on the clamped nucleus paradigm and solely working with the electronic wavefunctions, so does not include nuclear vibrations in the AIM analysis. On the other hand, the recently extended version of the QTAIM, called the multi-component QTAIM (MC-QTAIM), incorporates both electrons and quantum nuclei, i.e., those nuclei treated as quantum waves instead of clamped point charges, into the AIM analysis using non-adiabatic wavefunctions. Thus, the MC-QTAIM is the natural framework to incorporate the role of nuclear vibrations into the AIM analysis. In this study, within the context of the MC-QTAIM, the formalism of including nuclear vibrational energy in the atomic basin energy is developed in detail and its contribution is derived analytically using the recently proposed non-adiabatic Hartree product nuclear wavefunction. It is demonstrated that within the context of this wavefunction, the quantum nuclei may be conceived pseudo-adiabatically as quantum oscillators and both isotropic harmonic and anisotropic anharmonic oscillator models are used to compute the zero-point nuclear vibrational energy contribution to the basin energies explicitly. Inspired by the results gained within the context of the MC-QTAIM analysis, a heuristic approach is proposed within the context of the QTAIM to include nuclear vibrational energy in the basin energy from the vibrational wavefunction derived adiabatically. The explicit calculation of the basin contribution of the zero-point vibrational energy using the uncoupled harmonic oscillator model leads to results consistent with those derived from the MC-QTAIM.

  17. A confirmatory factor analytic study of a self-leadership measure in South Africa

    Directory of Open Access Journals (Sweden)

    Bright Mahembe

    2013-01-01

    Full Text Available Orientation: Self-leadership is considered to be essential for effective individual functioning in occupational and academic contexts. The revised self-leadership questionnaire (RSLQ is widely utilised for measuring self-leadership, but its psychometric properties have not been established on a South African sample. By implication, important questions also exist about the theoretical structure of self-leadership in the South African context. Research purpose: The research aim of this study was to investigate the reliability and factorial validity of the revised self-leadership questionnaire on a South African sample. In doing so, the results of the research would also provide valuable insights into the latent factor structure of the self-leadership construct. Motivation for the study: On a practical level, the research sought internal validity evidence for the use of the RSLQ in the South African context. On a theoretical level, questions remain about the best conceptual representation of self-leadership as a construct. Research design, approach and method: The revised self-leadership questionnaire was administered to a non-probability sample of 375 South African young adults. The first and second-order factor structure underlying contemporary models of self-leadership using confirmatory factor analytic techniques was tested. Main findings: Results showed that the RSLQ measured self-leadership with suitable reliability and internal validity. All eight subscales had high internal consistency coefficients. Confirmatory factor analysis (CFA of the first and second-order models conclusively demonstrated good factorial validity. Practical/managerial implications: The study found that the RSLQ has good measurement properties for a South African context. Academics, practitioners and managers are urged to use the measure in its present form for applications such as leadership development and promoting self-management. Contribution/value-addition: The

  18. School Choice Legislation: Impact Assessment and Fiscal Notes

    Science.gov (United States)

    Ford, Michael; Merrifield, John

    2013-01-01

    Legislators considering large scale school choice proposals want information on more than likely schooling outcomes. They look to their fiscal bureaus and economic studies to provide that information. The fiscal notes that must accompany all proposals with revenue or expenditure implications are especially important. Often, fiscal notes must be…

  19. Law and population in Senegal : a survey of legislation

    NARCIS (Netherlands)

    Snyder, F.G.; Savané, M.-A.

    1977-01-01

    Leiden : African Studies Centre (ASC Research report, no. 5), p. 242, 1977.This preliminary survey provides, in a reference format, a compendium of legislation potentially affecting the growth, distribution and composition of thepopulation in Senegal. It starts with an introduction to the characteri

  20. School Choice Legislation: Impact Assessment and Fiscal Notes

    Science.gov (United States)

    Ford, Michael; Merrifield, John

    2013-01-01

    Legislators considering large scale school choice proposals want information on more than likely schooling outcomes. They look to their fiscal bureaus and economic studies to provide that information. The fiscal notes that must accompany all proposals with revenue or expenditure implications are especially important. Often, fiscal notes must be…

  1. Factors Influencing Compliance with Legislative Mandates within Information Technology Departments

    Science.gov (United States)

    Gioia, Paul J.

    2014-01-01

    Since 2001, information technology (IT) leadership has had to contend with a host of new federal and local regulatory mandates. The purpose of this quantitative study was to identify and assess the possible inefficiencies associated with efforts to comply with recent legislative IT mandates and to model the impact of these mandates on the…

  2. Learning Analytics: A Case Study of the Process of Design of Visualizations

    Science.gov (United States)

    Olmos, Martin; Corrin, Linda

    2012-01-01

    The ability to visualize student engagement and experience data provides valuable opportunities for learning support and curriculum design. With the rise of the use of learning analytics to provide "actionable intelligence" on students' learning, the challenge is to create visualizations of the data, which are clear and useful to the…

  3. Analytical study of the heat loss attenuation by clothing on thermal manikins under radiative heat loads

    NARCIS (Netherlands)

    Hartog, E.A. den; Havenith, G.

    2010-01-01

    For wearers of protective clothing in radiation environments there are no quantitative guidelines available for the effect of a radiative heat load on heat exchange. Under the European Union funded project ThermProtect an analytical effort was defined to address the issue of radiative heat load whil

  4. Analytical and numerical study on grating depth effects in grating coupled waveguide sensors

    DEFF Research Database (Denmark)

    Horvath, R.; Wilcox, L.C.; Pedersen, H.C.;

    2005-01-01

    The in-coupling process for grating-coupled planar optical waveguide sensors is investigated in the case of TE waves. A simple analytical model based on the Rayleigh-Fourier-Kiselev method is applied to take into account the depth of the grating coupler, which is usually neglected in the modeling...

  5. Knowledge, Skills, and Abilities for Entry-Level Business Analytics Positions: A Multi-Method Study

    Science.gov (United States)

    Cegielski, Casey G.; Jones-Farmer, L. Allison

    2016-01-01

    It is impossible to deny the significant impact from the emergence of big data and business analytics on the fields of Information Technology, Quantitative Methods, and the Decision Sciences. Both industry and academia seek to hire talent in these areas with the hope of developing organizational competencies. This article describes a multi-method…

  6. Theoretical study of Structural and analytical potential energy functions of GaN

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    Using Density Function Theory,the present work has optimized the equilibrium geometry of GaN. Murrell-Sorbie analytical potential energy functions of GaN have been derived by using ab initio data and the least-square fitting method,and harmonic frequency,force constant and spectroscopic data also have been calculated.

  7. New neutron-based isotopic analytical methods; An explorative study of resonance capture and incoherent scattering

    NARCIS (Netherlands)

    Perego, R.C.

    2004-01-01

    Two novel neutron-based analytical techniques have been treated in this thesis, Neutron Resonance Capture Analysis (NRCA), employing a pulsed neutron source, and Neutron Incoherent Scattering (NIS), making use of a cold neutron source. With the NRCA method isotopes are identified by the isotopic-spe

  8. Juicing the Juice: A Laboratory-Based Case Study for an Instrumental Analytical Chemistry Course

    Science.gov (United States)

    Schaber, Peter M.; Dinan, Frank J.; St. Phillips, Michael; Larson, Renee; Pines, Harvey A.; Larkin, Judith E.

    2011-01-01

    A young, inexperienced Food and Drug Administration (FDA) chemist is asked to distinguish between authentic fresh orange juice and suspected reconstituted orange juice falsely labeled as fresh. In an advanced instrumental analytical chemistry application of this case, inductively coupled plasma (ICP) spectroscopy is used to distinguish between the…

  9. New neutron-based isotopic analytical methods; An explorative study of resonance capture and incoherent scattering

    NARCIS (Netherlands)

    Perego, R.C.

    2004-01-01

    Two novel neutron-based analytical techniques have been treated in this thesis, Neutron Resonance Capture Analysis (NRCA), employing a pulsed neutron source, and Neutron Incoherent Scattering (NIS), making use of a cold neutron source. With the NRCA method isotopes are identified by the

  10. Knowledge, Skills, and Abilities for Entry-Level Business Analytics Positions: A Multi-Method Study

    Science.gov (United States)

    Cegielski, Casey G.; Jones-Farmer, L. Allison

    2016-01-01

    It is impossible to deny the significant impact from the emergence of big data and business analytics on the fields of Information Technology, Quantitative Methods, and the Decision Sciences. Both industry and academia seek to hire talent in these areas with the hope of developing organizational competencies. This article describes a multi-method…

  11. Juicing the Juice: A Laboratory-Based Case Study for an Instrumental Analytical Chemistry Course

    Science.gov (United States)

    Schaber, Peter M.; Dinan, Frank J.; St. Phillips, Michael; Larson, Renee; Pines, Harvey A.; Larkin, Judith E.

    2011-01-01

    A young, inexperienced Food and Drug Administration (FDA) chemist is asked to distinguish between authentic fresh orange juice and suspected reconstituted orange juice falsely labeled as fresh. In an advanced instrumental analytical chemistry application of this case, inductively coupled plasma (ICP) spectroscopy is used to distinguish between the…

  12. Legislating Interprofessional Regulatory Collaboration in Nova Scotia

    Directory of Open Access Journals (Sweden)

    William Lahey

    2013-10-01

    Full Text Available To shift health professions regulation from traditional to ‘collaborative’ self-regulation, Nova Scotia has adopted legislation which will: make all self-regulating health professions members of the Regulated Health Professions Network; mandate the Network to facilitate voluntary collaboration among its members; and enable regulators to work together on investigations of patient complaints, to adjust scopes of practice on an ongoing basis and to adjudicate appeals of unsuccessful applicants for registration. The goals are to give health professions regulation the capacity to enable and support the functioning of interprofessional teams. The legislation was adopted primarily for two reasons: collaborative development and unanimous support by all of the province’s self-regulating professions; and alignment with the government’s health care reform agenda and its emphasis on collaborative team-based care. Contrary to the approach of several other provinces, the legislation will enable but not require regulators to collaborate on the premise that consensual collaboration is more likely to happen, to be meaningful and to yield tangible benefits. Support for this approach can be taken from the impressive collaborative work on which the legislation is based. Evaluation will be critical, and the five-year review required by the legislation will give Nova Scotia the opportunity to test not only the legislation but the ideas on which it is based. The extent of the legislation’s reliance on voluntary process will prove to be either its greatest strength or its greatest weakness.

  13. An Exploratory Study to Assess Analytical and Logical Thinking Skills of the Software Practitioners using a Gamification Perspective

    Directory of Open Access Journals (Sweden)

    Şahin KAYALI

    2016-12-01

    Full Text Available The link between analytical and logical thinking skills and success of software practitioners attracted an increasing attention in the last decade. Several studies report that the ability to think logically is a requirement for improving software development skills, which exhibits a strong reasoning. Additionally, analytical thinking is a vital part of software development for example while dividing a task into elemental parts with respect to basic rules and principles.  Using the basic essence of gamification, this study proposes a mobile testing platform for assessing analytical and logical thinking skills of software practitioners as well as computer engineering students. The assessment questions were taken from the literature and transformed into a gamified tool based on the software requirements. A focus group study was conducted to capture the requirements. Using the Delphi method, these requirements were discussed by a group of experts to reach a multidisciplinary understanding where a level of moderate agreement has been achieved. In light of these, an assessment tool was developed, which was tested on both software practitioners from the industry and senior computer engineering students. Our results suggest that individuals who exhibit skills in analytical and logical thinking are also more inclined to be successful in software development.

  14. Impact of National Smoke-Free Legislation on Educational Disparities in Smoke-Free Homes: Findings from the SIDRIAT Longitudinal Study

    Directory of Open Access Journals (Sweden)

    Giuseppe Gorini

    2015-07-01

    Full Text Available Families with lower socioeconomic status are less likely to adopt household smoking bans (HSB. The aim of this study was to determine whether socioeconomic disparities in HSB prevalence in Italy decreased 7–9 years after the introduction of the Italian ban on smoking in public places. A longitudinal, 12-year, two-wave study was conducted on a sample of 3091 youths aged 6–14 years in 2002; 1763 (57% were re-interviewed in 2012–2014. A Poisson regression with a robust error variance was used to assess the association between socioeconomic disparities and HSB prevalence. The adoption of HSBs significantly increased from 60% in 2002 to 75% in 2012–2014, with the increase recorded in youths with ≥1 smoking parent only (from 22% at baseline to 46% at follow-up. The presence of HSBs at baseline was more likely in families with ≥1 graduate parent compared to those with no graduate parents (prevalence ratio (PR = 1.34, 95% confidence interval (CI = 1.15–1.57, either in families with ≥1 smoking parent (PR = 1.36, 95% CI = 1.17–1.58 or in families with non-smoking parents (PR = 1.61, 95% CI = 1.01–2.56. Conversely, at follow-up socioeconomic disparities dropped since families with no graduate parents were 1.5-fold more likely to introduce a HSB between the two waves. The Italian ban on smoking in public places may have increased the adoption of smoke-free homes in families with smoking and non-graduate parents, causing the drop of the socioeconomic gap in smoke-free homes.

  15. Impact of National Smoke-Free Legislation on Educational Disparities in Smoke-Free Homes: Findings from the SIDRIAT Longitudinal Study.

    Science.gov (United States)

    Gorini, Giuseppe; Carreras, Giulia; Cortini, Barbara; Verdi, Simona; Petronio, Maria Grazia; Sestini, Piersante; Chellini, Elisabetta

    2015-07-24

    Families with lower socioeconomic status are less likely to adopt household smoking bans (HSB). The aim of this study was to determine whether socioeconomic disparities in HSB prevalence in Italy decreased 7-9 years after the introduction of the Italian ban on smoking in public places. A longitudinal, 12-year, two-wave study was conducted on a sample of 3091 youths aged 6-14 years in 2002; 1763 (57%) were re-interviewed in 2012-2014. A Poisson regression with a robust error variance was used to assess the association between socioeconomic disparities and HSB prevalence. The adoption of HSBs significantly increased from 60% in 2002 to 75% in 2012-2014, with the increase recorded in youths with ≥1 smoking parent only (from 22% at baseline to 46% at follow-up). The presence of HSBs at baseline was more likely in families with ≥1 graduate parent compared to those with no graduate parents (prevalence ratio (PR) = 1.34, 95% confidence interval (CI) = 1.15-1.57), either in families with ≥1 smoking parent (PR = 1.36, 95% CI = 1.17-1.58) or in families with non-smoking parents (PR = 1.61, 95% CI = 1.01-2.56). Conversely, at follow-up socioeconomic disparities dropped since families with no graduate parents were 1.5-fold more likely to introduce a HSB between the two waves. The Italian ban on smoking in public places may have increased the adoption of smoke-free homes in families with smoking and non-graduate parents, causing the drop of the socioeconomic gap in smoke-free homes.

  16. Transfer of risk: "right to sue" legislation and managed care organization stock performance.

    Science.gov (United States)

    Weeks, W B; Nells, T; Wallace, A E

    2001-01-01

    We examined whether Congress's consideration of legislation that gave consumers the right to sue managed care organizations impacted the performance of these companies' stocks relative to that of the market. For each company examined, the total return related to such legislation was negative and substantially lower than that expected from the market model; losses in market value were from 17 percent to 48 percent for individual companies and 22 percent for a capitalization-weighted portfolio. The study suggests that equity markets responded to the proposed legislation quickly and that the impact of proposed legislation is felt through loss of market value and increased corporate risk.

  17. The Deployment of Product-Related Environmental Legislation into Product Requirements

    DEFF Research Database (Denmark)

    Pigosso, Daniela Cristina Antelmi; Ferraz, Mariana; Teixeira, Cláudia

    2016-01-01

    (PDP). Nevertheless, the deployment of product-related environmental legislation into product requirements is still a challenge. This study followed an inductive approach to propose a guideline to support the identification, analysis and deployment of product requirements based on product......-related environmental legislation. The guideline is composed of nine steps, clustered into three groups according to their main objective: (A) identification of environmental product-related legislation; (B) identification of legislative topics to be considered for the deployment of requirements; and (C) creation...

  18. Analytical Approaches Based on Gas Chromatography Mass Spectrometry (GC/MS) to Study Organic Materials in Artworks and Archaeological Objects.

    Science.gov (United States)

    Bonaduce, Ilaria; Ribechini, Erika; Modugno, Francesca; Colombini, Maria Perla

    2016-02-01

    Gas chromatography/mass spectrometry (GC/MS), after appropriate wet chemical sample pre-treatments or pyrolysis, is one of the most commonly adopted analytical techniques in the study of organic materials from cultural heritage objects. Organic materials in archaeological contexts, in classical art objects, or in modern and contemporary works of art may be the same or belong to the same classes, but can also vary considerably, often presenting different ageing pathways and chemical environments. This paper provides an overview of the literature published in the last 10 years on the research based on the use of GC/MS for the analysis of organic materials in artworks and archaeological objects. The latest progresses in advancing analytical approaches, characterising materials and understanding their degradation, and developing methods for monitoring their stability are discussed. Case studies from the literature are presented to examine how the choice of the working conditions and the analytical approaches is driven by the analytical and technical question to be answered, as well as the nature of the object from which the samples are collected.

  19. Information Privacy: Culture, Legislation and User Attitudes

    Directory of Open Access Journals (Sweden)

    Sophie Cockcroft

    2006-11-01

    Full Text Available Information privacy has received much public and research interest in recent years. Globally this has arisen from public anxiety following the September 11 attacks and within Australia a progressive tightening of privacy legislation in particular the privacy amendment (private sector Act of 2000 which became operative in 2001. This paper presents the results of a study into attitudes towards information privacy. Based on an instrument developed and validated by Smith et al (1996a this study sets out to measure individual concerns regarding organisational use of information along four dimensions: collection, errors, unauthorised secondary use, and improper access. The survey was completed by 67 undergraduate and postgraduate students enrolled in an e-commerce security subject at the University of Queensland. Comparisons are drawn between the results of this study and an identical one carried out at the University of North Alabama. Whilst it is too early to draw conclusions about the impact of these attitudes on the success of e-commerce in general, the results should be of interest to those within universities seeking to expand the use of networking technologies for handling sensitive information such as enrolment and fee processing (Vanscoy & Oakleaf 2003

  20. Analytical and numerical study of the thermal feedback in Groundwater Heat Pumps (GWHP)

    Science.gov (United States)

    Casasso, Alessandro; Sethi, Rajandrea

    2014-05-01

    Ground Water Heat Pumps (GWHP) are a promising renewable heating and cooling technology, which can noticeably reduce primary energy consumption of air conditioning in buildings. To ensure their efficiency and sustainability over time, hydrogeological modelling is of pivotal importance, since thermal feedback between injection and extraction well can heavily impair their performances. On the other hand, an accurate numerical flow and heat transport simulation is not usually performed and is not affordable on small installations. The aim of this study is to solve the hydraulic and thermal transport problem of an injection and an extraction well, in presence of a subsurface flow, by means of a finite-difference approximation of the potential flow theory. The results of this approach have been firstly validated against FEM numerical simulation showing a good agreement in a wide a range of operating conditions, then used in order to develop an approximated analytical relationship which describes the evolution of the thermal feedback over time. The relationship is dependent on the most relevant parameters of the aquifer system and of the GWHP and it can be effectively used for a fast dimensioning of full scale installations. References Ampofo F., Maidment G.G., Missenden J.F., 2006, Review of groundwater cooling systems in London, Applied Thermal Engineering 26, pp. 2055-2062 Brashears M.L., 1941, Ground-water temperature on Long Island, New York, as affected by recharge of warm water, Economic Geology 36, pp. 811-828 Clyde C.G., Madabhushi G.V., 1983, Spacing of wells for heat pumps, Journal of Water Resources Planning & Management - ASCE 109, pp. 203-212 Ferguson G., 2006, Potential use of particle tracking in the analysis of low-temperature geothermal developments, Geothermics 35, pp. 44-58 Gringarten A.C., Sauty J.P., 1975, A theoretical study of heat extraction from aquifers with uniform regional flow, Journal of Geophysical Research 80, pp. 4956-4962 Lippmann M