WorldWideScience

Sample records for survey methodological issues

  1. Sampling survey methodology issues of SBS- survey

    OpenAIRE

    Liljana Boci; Elona Berberi

    2015-01-01

    This paper aims at providing an insight on what is required to build an efficient and high quality business statistics from sample survey procedures, and on the effective and appropriate use of survey data in analysis. It aims at describing a general overview of what is required to have a good survey estimate. It shows in practice how to estimate characteristics of the population in SBS considering: weighting, non-response adjustments, post stratification, estimating a population totals, the ...

  2. Sampling survey methodology issues of SBS- survey

    Directory of Open Access Journals (Sweden)

    Liljana Boci

    2015-07-01

    Full Text Available This paper aims at providing an insight on what is required to build an efficient and high quality business statistics from sample survey procedures, and on the effective and appropriate use of survey data in analysis. It aims at describing a general overview of what is required to have a good survey estimate. It shows in practice how to estimate characteristics of the population in SBS considering: weighting, non-response adjustments, post stratification, estimating a population totals, the identification and treatment of outliers, and analyses of coefficient of variation. It provides sources of errors and gives recommendations of how to improve them throw sample survey techniques.

  3. Telephone surveying for drug abuse: methodological issues and an application.

    Science.gov (United States)

    Frank, B

    1985-01-01

    In light of New York State's experience, it is probable that future household drug use surveys will use telephone administration. Drug use questions are not as sensitive as had been thought, and are easily administered by telephone. In addition, the lower costs, the computer-assisted capabilities, and the saving in time are some of the advantages in comparison to face-to-face surveying. In order to address the nontelephone segments of the household population--despite their declining proportion--and to improve response rates, mixed-mode interviewing may have to be considered. Given a better understanding of telephone-associated behavior and the increasing popularity of technological advances, such as the portability and mobility of phones, telephone surveying may become even more attractive in the future.

  4. [Customer satisfaction in home care: methodological issues based on a survey carried out in Lazio].

    Science.gov (United States)

    Pasquarella, A; Marceca, M; Casagrande, S; Gentile, D; Zeppilli, D; Buonaiuto, N; Cozzolino, M; Guasticchi, G

    2007-01-01

    Home care customer satisfaction has been, until now, rarely evaluated. After illustrating the main italian regional surveys on this issue, the article presents a customer satisfaction survey carried out in the district of Civitavecchia (Local Health Unit 'Rome F'), Lazio, regarding 30 home care beneficiaries. Methodological aspects emerging from the survey are basically focused on: advantages and disadvantages of quantitative and qualitative approaches (possibly associated each other); main criteria of eligibility of people selected for interviewing, both patients or caregivers; conditions that maximize answers reliability, including training on interviewers. Authors highlight opportunity of using such kind of survey, integrated with other different tools, into a systemic vision, for promoting management changes coming from suggested problems, aimed at total quality management.

  5. [Relevant methodological issues from the SBBrasil 2010 Project for national health surveys].

    Science.gov (United States)

    Roncalli, Angelo Giuseppe; Silva, Nilza Nunes da; Nascimento, Antonio Carlos; Freitas, Cláudia Helena Soares de Morais; Casotti, Elisete; Peres, Karen Glazer; Moura, Lenildo de; Peres, Marco A; Freire, Maria do Carmo Matias; Cortes, Maria Ilma de Souza; Vettore, Mario Vianna; Paludetto Júnior, Moacir; Figueiredo, Nilcema; Goes, Paulo Sávio Angeiras de; Pinto, Rafaela da Silveira; Marques, Regina Auxiliadora de Amorim; Moysés, Samuel Jorge; Reis, Sandra Cristina Guimarães Bahia; Narvai, Paulo Capel

    2012-01-01

    The SBBrasil 2010 Project (SBB10) was designed as a nationwide oral health epidemiological survey within a health surveillance strategy. This article discusses methodological aspects of the SBB10 Project that can potentially help expand and develop knowledge in the health field. This was a nationwide survey with stratified multi-stage cluster sampling. The sample domains were 27 State capitals and 150 rural municipalities (counties) from the country's five major geographic regions. The sampling units were census tracts and households for the State capitals and municipalities, census tracts, and households for the rural areas. Thirty census tracts were selected in the State capitals and 30 municipalities in the countryside. The precision considered the demographic domains grouped by density of the overall population and the internal variability of oral health indices. The study evaluated dental caries, periodontal disease, malocclusion, fluorosis, tooth loss, and dental trauma in five age groups (5, 12, 15-19, 35-44, and 65-74 years).

  6. Some methodological issues in biosurveillance.

    Science.gov (United States)

    Fricker, Ronald D

    2011-02-28

    This paper briefly summarizes a short course I gave at the 12th Biennial Centers for Disease Control and Prevention (CDC) and Agency for Toxic Substances and Disease Registry (ATSDR) Symposium held in Decatur, Georgia on April 6, 2009. The goal of this short course was to discuss various methodological issues of biosurveillance detection algorithms, with a focus on the issues related to developing, evaluating, and implementing such algorithms.

  7. Methodological issues in grounded theory.

    Science.gov (United States)

    Cutcliffe, J R

    2000-06-01

    Examination of the qualitative methodological literature shows that there appear to be conflicting opinions and unresolved issues regarding the nature and process of grounded theory. Researchers proposing to utilize this method would therefore be wise to consider these conflicting opinions. This paper therefore identifies and attempts to address four key issues, namely, sampling, creativity and reflexivity, the use of literature, and precision within grounded theory. The following recommendations are made. When utilizing a grounded method researchers need to consider their research question, clarify what level of theory is likely to be induced from their study, and then decide when they intend to access and introduce the second body of literature. They should acknowledge that in the early stages of data collection, some purposeful sampling appears to occur. In their search for conceptually dense theory, grounded theory researchers may wish to free themselves from the constraints that limit their use of creativity and tacit knowledge. Furthermore, the interests of researchers might be served by attention to issues of precision including, avoiding method slurring, ensuring theoretical coding occurs, and using predominantly one method of grounded theory while explaining and describing any deviation away from this chosen method. Such mindfulness and the resulting methodological rigour is likely to increase the overall quality of the inquiry and enhance the credibility of the findings.

  8. Risk analysis methodology survey

    Science.gov (United States)

    Batson, Robert G.

    1987-01-01

    NASA regulations require that formal risk analysis be performed on a program at each of several milestones as it moves toward full-scale development. Program risk analysis is discussed as a systems analysis approach, an iterative process (identification, assessment, management), and a collection of techniques. These techniques, which range from simple to complex network-based simulation were surveyed. A Program Risk Analysis Handbook was prepared in order to provide both analyst and manager with a guide for selection of the most appropriate technique.

  9. Methodological issues of postoperative cognitive dysfunction research

    DEFF Research Database (Denmark)

    Funder, Kamilia S; Steinmetz, Jacob; Rasmussen, Lars S

    2010-01-01

    to reveal postoperative cognitive decline, and questionnaires are not useful for this purpose. There is a profound lack of consensus regarding the research methodology for detection of cognitive deterioration, especially the diagnostic criteria. Issues, such as baseline performance, learning effects...

  10. Survey of Dynamic PSA Methodologies

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Hansul; Kim, Hyeonmin; Heo, Gyunyoung [Kyung Hee University, Yongin (Korea, Republic of); Kim, Taewan [KEPCO International Nuclear Graduate School, Ulsan (Korea, Republic of)

    2015-05-15

    Event Tree(ET)/Fault Tree(FT) are significant methodology in Probabilistic Safety Assessment(PSA) for Nuclear Power Plants(NPPs). ET/FT methodology has the advantage for users to be able to easily learn and model. It enables better communication between engineers engaged in the same field. However, conventional methodologies are difficult to cope with the dynamic behavior (e.g. operation mode changes or sequence-dependent failure) and integrated situation of mechanical failure and human errors. Meanwhile, new possibilities are coming for the improved PSA by virtue of the dramatic development on digital hardware, software, information technology, and data analysis.. More specifically, the computing environment has been greatly improved with being compared to the past, so we are able to conduct risk analysis with the large amount of data actually available. One method which can take the technological advantages aforementioned should be the dynamic PSA such that conventional ET/FT can have time- and condition-dependent behaviors in accident scenarios. In this paper, we investigated the various enabling techniques for the dynamic PSA. Even though its history and academic achievement was great, it seems less interesting from industrial and regulatory viewpoint. Authors expect this can contribute to better understanding of dynamic PSA in terms of algorithm, practice, and applicability. In paper, the overview for the dynamic PSA was conducted. Most of methodologies share similar concepts. Among them, DDET seems a backbone for most of methodologies since it can be applied to large problems. The common characteristics sharing the concept of DDET are as follows: • Both deterministic and stochastic approaches • Improves the identification of PSA success criteria • Helps to limit detrimental effects of sequence binning (normally adopted in PSA) • Helps to avoid defining non-optimal success criteria that may distort the risk • Framework for comprehensively considering

  11. Methodological issues of postoperative cognitive dysfunction research

    DEFF Research Database (Denmark)

    Funder, Kamilia S; Steinmetz, Jacob; Rasmussen, Lars S

    2010-01-01

    Postoperative cognitive dysfunction (POCD) is a subtle impairment of memory, concentration, and speed of information processing. It is a frequent complication following surgery and can have a debilitating effect on patients' recovery and future prognosis. Neuropsychological testing is needed...... to reveal postoperative cognitive decline, and questionnaires are not useful for this purpose. There is a profound lack of consensus regarding the research methodology for detection of cognitive deterioration, especially the diagnostic criteria. Issues, such as baseline performance, learning effects...

  12. Least-cost Paths - Some Methodological Issues

    Directory of Open Access Journals (Sweden)

    Irmela Herzog

    2014-06-01

    Full Text Available This article deals with methodological issues connected with least-cost path (LCP calculations in archaeology. The number of LCP studies in archaeology has increased rapidly during the last couple of years, but not all of the approaches applied are based on an appropriate model and implementation. Many archaeologists rely on standard GIS software with default settings for calculating LCPs and are not aware of possible alternatives and the pitfalls that are described in this article. After briefly introducing the aims and applications of LCP methods in archaeology, LCP algorithms are discussed. The outcome of the LCP calculations depends not only on the algorithm but also on the cost model, which often includes several cost components. The discussion of the cost components has a focus on slope, because nearly all archaeological LCP studies take this cost component into account and because several methodological issues are connected with slope-based cost models. Other possible cost components are: the load of the walker, vegetation cover, wetlands or other soil properties, travelling and transport on water, water as barrier and as attractor, aspect, altitude, and social or cultural cost components. Eventually, advantages and disadvantages of different ways of combining cost components are presented. Based on the methodological issues I conclude that both validation checks and variations of the model are necessary to analyse the reliability of archaeological LCP results.

  13. Methodological issues in cytokine measurement in schizophrenia

    Directory of Open Access Journals (Sweden)

    Maju Mathew Koola

    2016-01-01

    Full Text Available There is mounting evidence that inflammation is a major factor in the pathophysiology of schizophrenia. Inflammatory status is commonly ascertained by measuring peripheral cytokine concentrations. An issue concerning research on inflammation and schizophrenia relates to assay methodology. Enzyme-linked immunosorbent assay (ELISA is the most widely used and the gold standard method used to measure cytokine concentrations. ELISA has a number of limitations. Both ELISA and multiplex are limited by not being able to distinguish between bioactive and inactive molecules and the matrix and heterophilic (auto- antibody interference. Multiplex assays when combined with gene expression analysis and flow cytometry techniques such as fluorescence-activated cell sorting may be useful to detect abnormalities in specific immune pathways. Peripheral blood mononuclear cells cultures, to evaluate in vitro lipopolysaccharide-induced cytokine production, may be a better technology than measuring cytokines in the serum. The purpose of this paper is to shed light on major methodological issues that need to be addressed in order to advance the study of cytokines in schizophrenia. We make a few recommendations on how to address these issues.

  14. Photography and History: methodological and theoretical issues

    Directory of Open Access Journals (Sweden)

    Ivo Santos Canabarro

    2015-06-01

    Full Text Available This article discusses issues related to the relation of photography with the construction of historical knowledge, realizing the theoretical dimensions that encompass a whole field of study about photography. The use of photography with its theoretical and methodological support in history is very recent, as many historians only used it for writing text illustration. Our hypothesis is that photography can be an object and source of investigation and, at the same time, an object that offers notions of its use as a specific problem in the field of visual culture.

  15. Autism genetics: Methodological issues and experimental design.

    Science.gov (United States)

    Sacco, Roberto; Lintas, Carla; Persico, Antonio M

    2015-10-01

    Autism is a complex neuropsychiatric disorder of developmental origin, where multiple genetic and environmental factors likely interact resulting in a clinical continuum between "affected" and "unaffected" individuals in the general population. During the last two decades, relevant progress has been made in identifying chromosomal regions and genes in linkage or association with autism, but no single gene has emerged as a major cause of disease in a large number of patients. The purpose of this paper is to discuss specific methodological issues and experimental strategies in autism genetic research, based on fourteen years of experience in patient recruitment and association studies of autism spectrum disorder in Italy.

  16. Methodological issues in negative symptom trials.

    Science.gov (United States)

    Marder, Stephen R; Daniel, David G; Alphs, Larry; Awad, A George; Keefe, Richard S E

    2011-03-01

    Individuals from academia, the pharmaceutical industry, and the US Food and Drug Administration used a workshop format to discuss important methodological issues in the design of trials of pharmacological agents for improving negative symptoms in schizophrenia. The issues addressed included the need for a coprimary functional measure for registration trials; the characteristics of individuals who should enter negative symptom trials; the optimal duration for a proof-of-concept or registration trial; the optimal design of a study of a broad-spectrum agent that treats both positive and negative symptoms or a co-medication that is added to an antipsychotic; the relative strengths and weaknesses of available instruments for measuring negative symptoms; the definition of clinically meaningful improvement for these trials; and whether drugs can be approved for a subdomain of negative symptoms.

  17. Evidence on public policy: methodological issues, political issues and examples.

    Science.gov (United States)

    Attanasio, Orazio P

    2014-03-01

    In this paper I discuss how evidence on public policy is generated and in particular the issue of evaluation of public policies. In economics, the issue of attribution and the identification of causal links has recently received considerable attention. Important methodological issues have been tackled and new techniques have been proposed and used. Randomized Control Trials have become some sort of gold standard. However, they are not exempt from problems and have important limitations: in some case they cannot be constructed and, more generally, problems of external validity and transferability of results can be important. The paper then moves on to discuss the political economy of policy evaluations for policy evaluations to have an impact for the conduct of actual policy, it is important that the demand for evaluation comes directly from the policy making process and is generated endogenously within it. In this sense it is important that the institutional design of policy making is such that policy making institutions are incentivized to use rigorous evaluation in the process of designing policies and allocating resources to alternative options. Economists are currently involved in the design and evaluation of many policies, including policies about health, nutrition and education. The role they can play in these fields is not completely obvious. The paper argues that their main contribution is in the modelling of how individual reacts to incentives (including those provided by public policies).

  18. The German SAVE survey: documentation and methodology

    OpenAIRE

    Schunk, Daniel

    2007-01-01

    The purpose of this document is to describe methodological details of the German SAVE survey and to provide users of SAVE with all necessary information for working with the publicly available SAVE dataset.

  19. Language Teaching Methodology. ERIC Issue Paper.

    Science.gov (United States)

    Rodgers, Theodore S.

    This paper gives an overview of 10 directions language teachers might take in the future. After providing background on the history of language teaching, language teaching methodology is defined and a distinction is made between methodologies and approaches. Next, the 10 scenarios are briefly described. They include the following: teacher/learner…

  20. Conceptual and methodological issues in epidemiology: An overview.

    Science.gov (United States)

    Broadbent, Alex

    2011-10-01

    In 2010 a series of workshops on philosophical and methodological issues in epidemiology was held at the University of Cambridge. The papers in this volume arise from those workshops. This paper represents an effort to identify, in broad brush, some of the major conceptual and methodological issues in epidemiology, which form the basis of an emerging focus on the philosophy of epidemiology.

  1. Issues in using methodological triangulation in research.

    Science.gov (United States)

    Casey, Dympna; Murphy, Kathy

    2009-01-01

    This paper describes how methodological triangulation was used in two nursing research studies. The literature identified a number of principles in reporting studies that used triangulation, including giving the rationale for using triangulation, detailing the process used to assist with triangulation and explaining how rigour was maintained. A brief review of triangulated studies revealed that few adhered fully to these principles. A 'within method' and an 'across method' study are used to illustrate how methodological triangulation was used, and the ways in which rigour was addressed are also described. In addition, the different contributions of triangulation to nursing research are highlighted.

  2. Methodological Issues on Climate Change Mitigation Studies

    DEFF Research Database (Denmark)

    Sørensen, Lene; Borges, Pedro Castro; Vidal, Rene Victor Valqui

    1999-01-01

    This paper uses national greenhouse gas emission abatement costing studies as a case to discuss influential factors that determine their outcome and achievement. Costing studies are seen as part of an interconnected whole social process where actors (decision makers, clients, facilitators, expert...... such methodologies to case studies is seen as one way of improving the chances of understanding and handling environmental problems...

  3. Students' Involvement in Faculty Research: Ethical and Methodological Issues

    OpenAIRE

    Ferguson, Linda M; Olive Yonge; Florence Myrick

    2004-01-01

    Faculty who engage students as participants in their qualitative research often encounter methodological and ethical problems. Ethical issues arise from the fiduciary relationship between faculty and their students, and violations of that relationship occur when the educator has a dual role as researcher with those students. Methodological issues arise from research designs to address these ethical issues. This conflict is particularly evident in faculty research on pedagogy in their own disc...

  4. Methodological Issues on Climate Change Mitigation Studies

    DEFF Research Database (Denmark)

    Sørensen, Lene; Borges, Pedro Castro; Vidal, Rene Victor Valqui

    1999-01-01

    This paper uses national greenhouse gas emission abatement costing studies as a case to discuss influential factors that determine their outcome and achievement. Costing studies are seen as part of an interconnected whole social process where actors (decision makers, clients, facilitators, experts....... Some methodological principles are suggested to address such contradictions, structure, and change th einteractions between the different dimensions of hte social process framework. Two studies are mentioned in which ideas are presented on how to deal with the central contradictions. Applying......, etc.) interact to analyse and solve important decision problems by applying methodologies. A simple framework is used to identify several sources of contradictions that may have a significant impact on studies carried out in the single countries as well on the implementation of abatement measures...

  5. Students' Involvement in Faculty Research: Ethical and Methodological Issues

    Directory of Open Access Journals (Sweden)

    Linda M. Ferguson

    2004-12-01

    Full Text Available Faculty who engage students as participants in their qualitative research often encounter methodological and ethical problems. Ethical issues arise from the fiduciary relationship between faculty and their students, and violations of that relationship occur when the educator has a dual role as researcher with those students. Methodological issues arise from research designs to address these ethical issues. This conflict is particularly evident in faculty research on pedagogy in their own disciplines, for which students are necessary as participants but are captive in the relationship. In this article, the authors explore the issues of double agency when faculty involve students as participants in their research.

  6. A Survey on Speech Enhancement Methodologies

    Directory of Open Access Journals (Sweden)

    Ravi Kumar. K

    2016-12-01

    Full Text Available Speech enhancement is a technique which processes the noisy speech signal. The aim of speech enhancement is to improve the perceived quality of speech and/or to improve its intelligibility. Due to its vast applications in mobile telephony, VOIP, hearing aids, Skype and speaker recognition, the challenges in speech enhancement have grown over the years. It is more challenging to suppress back ground noise that effects human communication in noisy environments like airports, road works, traffic, and cars. The objective of this survey paper is to outline the single channel speech enhancement methodologies used for enhancing the speech signal which is corrupted with additive background noise and also discuss the challenges and opportunities of single channel speech enhancement. This paper mainly focuses on transform domain techniques and supervised (NMF, HMM speech enhancement techniques. This paper gives frame work for developments in speech enhancement methodologies

  7. Comparing medicine and management: methodological issues.

    Science.gov (United States)

    Burau, V

    2016-05-24

    transpose analytical insights from institutional explanations at macro level to studies that are multi-level and also include the meso level of organisations. Methodologically, we need to address the challenges arising from more non-linear approaches to comparison, especially how to organise close international research collaboration over an extended period of time.

  8. Learning Potential Assessment: Theoretical, Methodological and Practical Issues.

    Science.gov (United States)

    Hamers, J. H. M., Ed.; Sijtsma, K., Ed.; Ruijssenaars, A. J. J. M., Ed.

    The first part of this volume is concerned with theoretical and conceptual issues concerning learning potential assessment. The second part deals with methodological and measurement issues in learning potential assessment, and the third part is devoted to research projects and practical applications of learning potential tests. The following…

  9. Data and models in Action. Methodological Issues in Production Ecology

    NARCIS (Netherlands)

    Stein, A.; Penning, de F.W.T.

    1999-01-01

    This book addresses methodological issues of production ecology. A central issue is the combination of the agricultural model with reliable data in relation to scale. A model is developed with data from a single point, whereas decisions are to be made for areas of land. Such an approach requires the

  10. A survey of decision tree classifier methodology

    Science.gov (United States)

    Safavian, S. R.; Landgrebe, David

    1991-01-01

    Decision tree classifiers (DTCs) are used successfully in many diverse areas such as radar signal classification, character recognition, remote sensing, medical diagnosis, expert systems, and speech recognition. Perhaps the most important feature of DTCs is their capability to break down a complex decision-making process into a collection of simpler decisions, thus providing a solution which is often easier to interpret. A survey of current methods is presented for DTC designs and the various existing issues. After considering potential advantages of DTCs over single-state classifiers, subjects of tree structure design, feature selection at each internal node, and decision and search strategies are discussed.

  11. Studying Marriage and Family Therapists in the 21st Century: Methodological and Technological Issues

    Science.gov (United States)

    Northey, William F., Jr.

    2005-01-01

    In this article, I present data from two waves of research on demographic characteristics and practice patterns of marriage and family therapists (MFTs) conducted in 2000 and 2002. The research focuses on the methodological and technological issues in studying this population. Specifically, an online survey with MFTs obtained lower response rates…

  12. Challenges in dental statistics: survey methodology topics

    Directory of Open Access Journals (Sweden)

    Giuseppe Pizzo

    2013-12-01

    Full Text Available This paper gathers some contributions concerning survey methodology in dental research, as discussed during the first Workshop of the SISMEC STATDENT working group on statistical methods and applications in dentistry, held in Ancona on the 28th September 2011.The first contribution deals with the European Global Oral Health Indicators Development (EGOHID Project which proposed a comprehensive and standardized system of epidemiological tools (questionnaires and clinical forms for national data collection on oral health in Europe. The second contribution regards the design and conduct of trials to evaluate the clinical efficacy and safety of toothbrushes and mouthrinses. Finally, a flexible and effective tool used to trace dental age reference charts tailored to Italian children is presented.

  13. Methodologic issues in research on religion and health.

    Science.gov (United States)

    Flannelly, Kevin J; Ellison, Christopher G; Strock, Adrienne L

    2004-12-01

    This study examines several methodologic issues in research on religion and health, including the measurement of the concept of religion, research designs, sampling, and statistical controls for assessing the "net" effects of religion on health outcomes. It briefly discusses differences in analytical perspectives that have contributed to the debate about the effects of religion on health. The authors review some of the methodologic problems of past research in this area of study and address what needs to be done to enhance the quality of the research. The authors conclude that the research methodology used in studies of religion and health has improved over time and that it continues to do so.

  14. TESTS AND METHODOLOGIES FOR THE SURVEY OF NARROW SPACES

    Directory of Open Access Journals (Sweden)

    L. Perfetti

    2017-02-01

    Full Text Available The research illustrated in this article aimed at identifying a good standard methodology to survey very narrow spaces during 3D investigation of Cultural Heritage. It is an important topic in today’s era of BIM modelling applied to Cultural Heritage. Spaces like staircases, corridors and passages are very common in the architectural or archaeological fields, and obtaining a 3D-oriented survey of those areas can be a very complex task when completeness of the model and high precision are requested. Photogrammetry appears to be the most promising solution in terms of versatility and manoeuvrability also considering the quality of the required data. Fisheye lenses were studied and tested in depth because of their significant advantage in the field of view if compared with rectilinear lenses. This advantage alone can be crucial to reduce the total amount of photos and, as a consequence, to obtain manageable data, to simplify the survey phase and to significantly reduce the elaboration time. In order to overcome the main issue that arise when using fisheye lenses, which is the lack of rules that can be employed to design the survey, a general mathematical formulation to precisely estimate the GSD (Ground Sampling Distance for every optical projection is presented here. A complete survey of a real complex case study was performed in order to test and stress the proposed methodology, and to handle a fisheye-based survey from beginning to end: the photogrammetric survey of the Minguzzi Staircase. It is a complex service spiral-staircase located in the Duomo di Milano with a total height of 25 meters and characterized by a narrow walkable space about 70 centimetres wide.

  15. Personality Assessment of Global Talent: Conceptual and Methodological Issues

    Science.gov (United States)

    van de Vijver, Fons J. R.

    2008-01-01

    The recruitment of managers who will operate in a culturally heterogeneous context (as expatriate managers, managers in a global company, or managers of a multicultural workforce) is increasingly important in an age of globalization. This article describes conceptual and methodological issues in the assessment of such managers, notably in the…

  16. Trends and Issues in ELT Methods and Methodology

    Science.gov (United States)

    Waters, Alan

    2012-01-01

    Trends and issues in ELT methods and methodology can be identified at two main levels. One is in terms of the theoretical pronouncements of the "professional discourse", as manifested by major publications, conference presentations, and so on. This article therefore begins by briefly summarizing some of the main developments of this kind from 1995…

  17. Research with Children: Methodological Issues and Innovative Techniques

    Science.gov (United States)

    Fargas-Malet, Montserrat; McSherry, Dominic; Larkin, Emma; Robinson, Clive

    2010-01-01

    In the past few decades, a growing body of literature examining children's perspectives on their own lives has developed within a variety of disciplines, such as sociology, psychology, anthropology and geography. This article provides a brief up-to-date examination of methodological and ethical issues that researchers may need to consider when…

  18. Economic evaluation in stratified medicine: methodological issues and challenges

    Directory of Open Access Journals (Sweden)

    Hans-Joerg eFugel

    2016-05-01

    Full Text Available Background: Stratified Medicine (SM is becoming a practical reality with the targeting of medicines by using a biomarker or genetic-based diagnostic to identify the eligible patient sub-population. Like any healthcare intervention, SM interventions have costs and consequences that must be considered by reimbursement authorities with limited resources. Methodological standards and guidelines exist for economic evaluations in clinical pharmacology and are an important component for health technology assessments (HTAs in many countries. However, these guidelines have initially been developed for traditional pharmaceuticals and not for complex interventions with multiple components. This raises the issue as to whether these guidelines are adequate to SM interventions or whether new specific guidance and methodology is needed to avoid inconsistencies and contradictory findings when assessing economic value in SM.Objective: This article describes specific methodological challenges when conducting health economic (HE evaluations for SM interventions and outlines potential modifications necessary to existing evaluation guidelines /principles that would promote consistent economic evaluations for SM.Results/Conclusions: Specific methodological aspects for SM comprise considerations on the choice of comparator, measuring effectiveness and outcomes, appropriate modelling structure and the scope of sensitivity analyses. Although current HE methodology can be applied for SM, greater complexity requires further methodology development and modifications in the guidelines.

  19. Social survey findings on en route noise annoyance issues

    Science.gov (United States)

    Fields, James M.

    1990-01-01

    Most surveys of residents' reactions to aircraft noise were conducted in the vicinity of airports. The findings in those surveys have supported planning and regulatory actions for the airport noise environment. Now, however, aircraft noise planning and regulations are being considered for a new environment, the en route environment. As policy makers search for bases for public policy in these new noise environments, it is appropriate to ask whether the same scientific evidence which supports airport noise policy can also support en route noise policy. Several aspects of that question are considered. An introduction establishes the scope of the present study and examines alternative study methodologies. Next, the selected study methodology is described and important assumptions are listed. The body of the paper then consists of the findings on en route issues. The final section presents findings on relevant research methods and considers priorities for further research.

  20. Cost-utility analysis: Current methodological issues and future perspectives

    Directory of Open Access Journals (Sweden)

    Mark J C Nuijten

    2011-06-01

    Full Text Available The use of cost-effectiveness as final criterion in the reimbursement process for listing of new pharmaceuticals can be questioned from a scientific and policy point of view. There is a lack of consensus on main methodological issues and consequently we may question the appropriateness of the use of cost-effectiveness data in health care decision-making. Another concern is the appropriateness of the selection and use of an incremental cost-effectiveness threshold (Cost/QALY. In this review, we focus mainly on only some key methodological concerns relating to discounting, the utility concept, cost assessment and modelling methodologies. Finally we will consider the relevance of some other important decision criteria, like social values and equity.

  1. SNE's methodological basis - web-based software in entrepreneurial surveys

    DEFF Research Database (Denmark)

    Madsen, Henning

    This overhead based paper gives an introduction to the research methodology applied in the surveys carried out in the SNE-project.......This overhead based paper gives an introduction to the research methodology applied in the surveys carried out in the SNE-project....

  2. Methodological issues in HIV-related social research in Nigeria.

    Science.gov (United States)

    Erinosho, Olayiwola; Joseph, Richard; Isiugo-Abanihe, Uche; Dike, Nkem; Aderinto, Adeyinka A

    2013-12-01

    This paper is about methodological issues in a community-wide study in Nigeria on an infectious disease, namely HIV/AIDS. The study was designed to ascertain the risk factors that contribute to the spread of HIV/AIDS and how that can be tackled in order to bring about behavioural change. The research team believed at the onset that a study on the interplay between HIV/AIDS and sensitive issues like sexual mores and sexuality requires much more than a straightjacket social science method, such as simply doing a cross-section study and/or using interview schedule. This paper reviews the essence of cross-disciplinary approach; team building; as well as the use of a non-participatory observational approach in data collection. It also shows why ample consideration was given to ethical issues which are often glossed over in social research in developing countries. The lessons from the study underscore the methodological imperatives in social research that focus on sensitive issues in largely non-literate context like Nigeria. Although there are formidable challenges in community-based studies in largely non-literate societies, nevertheless they could easily be surmounted if there are ample time and resources to navigate the various sticking points.

  3. Methodological choice and the study of sensitive issues

    Directory of Open Access Journals (Sweden)

    Nora Ahlberg

    1999-01-01

    Full Text Available There has been relatively little concern with methodological issues within the study of religion. In this article the author considers the need for a continuing clarification of how diverse methodological approaches relate to the study of religion in general, and what is more, of certain aspects of the role of the researcher in particular. A main difference between the methodological approaches as referred to in this article — and illustrated by reference to minority studies -is in the closeness of the researcher to his field. One could perhaps state that while the researcher draws nearer to his field in soft approaches the theories remain further away from the empirical data (i.e. in that one creates greater vistas while the opposite is true for those that work with hard data designs, that meta-theories are almost excluded (as pure speculation due to the strict demands for operationalization, as the (effect of the researcher is to a greater extend likewise excluded from the picture. Though in both cases the choices made must naturally be made explicit as must the researcher relate to a qualified discussion between experts who have some kind of relationship to the kind of empirical material or theoretical thinking that is at issue in the particular project.

  4. Regional issue identification and assessment: study methodology. First annual report

    Energy Technology Data Exchange (ETDEWEB)

    1980-01-01

    The overall assessment methodologies and models utilized for the first project under the Regional Issue Identification and Assessment (RIIA) program are described. Detailed descriptions are given of the methodologies used by lead laboratories for the quantification of the impacts of an energy scenario on one or more media (e.g., air, water, land, human and ecology), and by all laboratories to assess the regional impacts on all media. The research and assessments reflected in this document were performed by the following national laboratories: Argonne National Laboratory; Brookhaven National Laboratory; Lawrence Berkeley Laboratory; Los Alamos Scientific Laboratory; Oak Ridge National Laboratory; and Pacific Northwest Laboratory. This report contains five chapters. Chapter 1 briefly describes the overall study methodology and introduces the technical participants. Chapter 2 is a summary of the energy policy scenario selected for the RIIA I study and Chapter 3 describes how this scenario was translated into a county-level siting pattern of energy development. The fourth chapter is a detailed description of the individual methodologies used to quantify the environmental and socioeconomic impacts of the scenario while Chapter 5 describes how these impacts were translated into comprehensive regional assessments for each Federal Region.

  5. Humor, laughter, and physical health: methodological issues and research findings.

    Science.gov (United States)

    Martin, R A

    2001-07-01

    All published research examining effects of humor and laughter on physical health is reviewed. Potential causal mechanisms and methodological issues are discussed. Laboratory experiments have shown some effects of exposure to comedy on several components of immunity, although the findings are inconsistent and most of the studies have methodological problems. There is also some evidence of analgesic effects of exposure to comedy, although similar findings are obtained with negative emotions. Few significant correlations have been found between trait measures of humor and immunity, pain tolerance, or self-reported illness symptoms. There is also little evidence of stress-moderating effects of humor on physical health variables and no evidence of increased longevity with greater humor. More rigorous and theoretically informed research is needed before firm conclusions can be drawn about possible health benefits of humor and laughter.

  6. Methodological issues in clinical drug development for essential tremor.

    Science.gov (United States)

    Carranza, Michael A; Snyder, Madeline R; Elble, Rodger J; Boutzoukas, Angelique E; Zesiewicz, Theresa A

    2012-01-01

    Essential tremor (ET) is one of the most common tremor disorders in the world. Despite this, only two medications have received Level A recommendations from the American Academy of Neurology to treat it (primidone and propranolol). Even though these medications provide relief to a large group of ET patients, up to 50% of patients are non-responders. Additional medications to treat ET are needed. This review discusses some of the methodological issues that should be addressed for quality clinical drug development in ET.

  7. Basic Project Management Methodologies for Survey Researchers.

    Science.gov (United States)

    Beach, Robert H.

    To be effective, project management requires a heavy dependence on the document, list, and computational capability of a computerized environment. Now that microcomputers are readily available, only the rediscovery of classic project management methodology is required for improved resource allocation in small research projects. This paper provides…

  8. Physician and patient survey of allergic rhinitis: methodology.

    Science.gov (United States)

    Higgins, V; Kay, S; Small, M

    2007-01-01

    Methodology for Disease Specific Programme (DSP) surveys designed by Adelphi Group Products is used each year to survey patients and physicians on their perceptions of treatment effectiveness, symptoms and impact of diseases. These point-in-time surveys, conducted in the USA and Europe (France, Germany, Italy, Spain and UK), provide useful information on the real-world management and treatment of diseases. This paper describes the methodology for the DSP survey in allergic rhinitis, detailing the preparation of materials, recruitment of physicians, data collection and data management.

  9. Teaching Labor Market Survey Methodology in Rehabilitation Counseling

    Science.gov (United States)

    Barros-Bailey, Mary

    2012-01-01

    Labor Market Survey (LMS) and labor market analysis knowledge and methodologies are minimum competencies expected of rehabilitation counselors through credentialing and accreditation boards. However, LMS knowledge and methodology is an example of a contemporary oral tradition that is universally recognized in rehabilitation and disability services…

  10. Contemporary research on parenting: conceptual, methodological, and translational issues.

    Science.gov (United States)

    Power, Thomas G; Sleddens, Ester F C; Berge, Jerica; Connell, Lauren; Govig, Bert; Hennessy, Erin; Liggett, Leanne; Mallan, Kimberley; Santa Maria, Diane; Odoms-Young, Angela; St George, Sara M

    2013-08-01

    Researchers over the last decade have documented the association between general parenting style and numerous factors related to childhood obesity (e.g., children's eating behaviors, physical activity, and weight status). Many recent childhood obesity prevention programs are family focused and designed to modify parenting behaviors thought to contribute to childhood obesity risk. This article presents a brief consideration of conceptual, methodological, and translational issues that can inform future research on the role of parenting in childhood obesity. They include: (1) General versus domain specific parenting styles and practices; (2) the role of ethnicity and culture; (3) assessing bidirectional influences; (4) broadening assessments beyond the immediate family; (5) novel approaches to parenting measurement; and (6) designing effective interventions. Numerous directions for future research are offered.

  11. Aspectos metodológicos do Projeto SBBrasil 2010 de interesse para inquéritos nacionais de saúde Relevant methodological issues from the SBBrasil 2010 Project for national health surveys

    Directory of Open Access Journals (Sweden)

    Angelo Giuseppe Roncalli

    2012-01-01

    Full Text Available O Projeto SBBrasil 2010 (SBB10 foi concebido como um levantamento epidemiológico em saúde bucal, de base nacional, dentro da estratégia de vigilância em saúde. O objetivo deste artigo é apresentar aspectos da metodologia do SBB10 que possam contribuir para ampliar e desenvolver conhecimentos na área de saúde. Com relação ao plano amostral, trata-se de uma pesquisa por conglomerados e com múltiplos estágios. Capitais e municípios do interior das cinco regiões brasileiras compõem os domínios da amostra, cujas unidades amostrais foram, respectivamente, setor censitário e domicílio para as capitais, e município, setor censitário e domicílio para o interior. Nas capitais foram sorteados 30 setores e, no interior de cada região, 30 municípios. A precisão considerou os domínios agrupados segundo o grau de densidade no total da população e a variabilidade interna dos índices. Foram avaliadas as condições de cárie dentária, doença periodontal, oclusopatias, fluorose, traumatismo dentário e edentulismo em cinco grupos etários (5, 12, 15 a 19, 35 a 44 e 65 a 74 anos.The SBBrasil 2010 Project (SBB10 was designed as a nationwide oral health epidemiological survey within a health surveillance strategy. This article discusses methodological aspects of the SBB10 Project that can potentially help expand and develop knowledge in the health field. This was a nationwide survey with stratified multi-stage cluster sampling. The sample domains were 27 State capitals and 150 rural municipalities (counties from the country's five major geographic regions. The sampling units were census tracts and households for the State capitals and municipalities, census tracts, and households for the rural areas. Thirty census tracts were selected in the State capitals and 30 municipalities in the countryside. The precision considered the demographic domains grouped by density of the overall population and the internal variability of oral health

  12. Researching student absence: methodological challenges and ethical issues.

    Science.gov (United States)

    Young, Pat; Yates, Sue; Rickaby, Caroline; Snelling, Paul; Lipscomb, Martin; Lockyer, Lesley

    2010-05-01

    This article describes the challenges encountered in a research project aiming to explore non-attendance from the perspective of absent students. These students are nursing students in a Faculty of Health and Social Care, but the issues raised here are of wider interest. Although attendance at the sessions monitored for this project is stated to be compulsory, there is typically a non-attendance rate of around 20%. Previous studies within the Faculty have reported positively on students' views of the sessions, but have relied on data collected from students present in the university and attending the sessions. We felt it was important to correct this imbalance with the views of those students who do not attend. We hoped to access the views of students not present in the university by means of telephone interviews, carried out by a researcher independent from the course management. This article explores a number of ethical and methodological issues which arose from the research, focusing on the difficulties in gaining informed consent from students who do not attend, and the challenges in moving beyond surface responses to questions on reasons for non-attendance. Copyright 2009 Elsevier Ltd. All rights reserved.

  13. School resources and student achievment: worldwide findings and methodological issues

    Directory of Open Access Journals (Sweden)

    Paulo A. Meyer. M. Nascimento

    2008-03-01

    Full Text Available The issues raised in the Education Production Function literature since the US 1966 Coleman Report have fuelled high controversy on the role of school resources in relation to student performance. In several literature reviews and some self estimates, Erik Hanushek (1986, 1997, 2006 systematically affirms that these two factors are not associated one to another – neither in the US nor abroad. In recent cross-country analyses, Ludger Woessmann (2003; 2005a; 2005b links international differences in attainment to institutional differences across educational systems – not to resourcing levels. In the opposite direction, Stephen Heyneman and William Loxley (1982, 1983 tried to demonstrate in the 1980’s that, at least for low income countries, school factors seemed to outweigh family characteristics on the determination of students’ outcomes – although other authors show evidence that such a phenomenon may have existed only during a limited period of the 20th Century. In the 1990s, meta-analyses raised the argument that school resources were sufficiently significant to be regarded as pedagogically important. The turn of the Century witnessed a new movement: the recognition that endogenous determination of resource allocation is a substantial methodological issue. Therefore, efforts have been made to incorporate the decision-making processes that involve families, schools and policy-makers in economic models. This implies changes in research designs that may affect the direction of future policy advices patronised by international development and educational organisations.

  14. Current methodological issues in the economic assessment of personalized medicine.

    Science.gov (United States)

    Annemans, Lieven; Redekop, Ken; Payne, Katherine

    2013-01-01

    There is a need for methodological scrutiny in the economic assessment of personalized medicine. In this article, we present a list of 10 specific issues that we argue pose specific methodological challenges that require careful consideration when designing and conducting robust model-based economic evaluations in the context of personalized medicine. Key issues are related to the correct framing of the research question, interpretation of test results, data collection of medical management options after obtaining test results, and expressing the value of tests. The need to formulate the research question clearly and be explicit and specific about the technology being evaluated is essential because various test kits can have the same purpose and yet differ in predictive value, costs, and relevance to practice and patient populations. The correct reporting of sensitivity/specificity, and especially the false negatives and false positives (which are population dependent), of the investigated tests is also considered as a key element. This requires additional structural complexity to establish the relationship between the test result and the consecutive treatment changes and outcomes. This process involves translating the test characteristics into clinical utility, and therefore outlining the clinical and economic consequences of true and false positives and true and false negatives. Information on treatment patterns and on their costs and outcomes, however, is often lacking, especially for false-positive and false-negative test results. The analysis can even become very complex if different tests are combined or sequentially used. This potential complexity can be handled by explicitly showing how these tests are going to be used in practice and then working with the combined sensitivities and specificities of the tests. Each of these issues leads to a higher degree of uncertainty in economic models designed to assess the added value of personalized medicine compared

  15. Assessing Campus Climates for Lesbian, Gay, Bisexual and Transgender (LGBT) Students: Methodological and Political Issues

    Science.gov (United States)

    Brown, Robert D.; Gortmaker, Valerie J.

    2009-01-01

    Methodological and political issues arise during the designing, conducting, and reporting of campus-climate studies for LGBT students. These issues interact; making a decision about a methodological issue (e.g., sample size) has an impact on a political issue (e.g., how well the findings will be received). Ten key questions that must be addressed…

  16. Assessing Campus Climates for Lesbian, Gay, Bisexual and Transgender (LGBT) Students: Methodological and Political Issues

    Science.gov (United States)

    Brown, Robert D.; Gortmaker, Valerie J.

    2009-01-01

    Methodological and political issues arise during the designing, conducting, and reporting of campus-climate studies for LGBT students. These issues interact; making a decision about a methodological issue (e.g., sample size) has an impact on a political issue (e.g., how well the findings will be received). Ten key questions that must be addressed…

  17. Measuring persistence: A literature review focusing on methodological issues

    Energy Technology Data Exchange (ETDEWEB)

    Wolfe, A.K.; Brown, M.A.; Trumble, D.

    1995-03-01

    This literature review was conducted as part of a larger project to produce a handbook on the measurement of persistence. The past decade has marked the development of the concept of persistence and a growing recognition that the long-term impacts of demand-side management (DSM) programs warrant careful assessment. Although Increasing attention has been paid to the topic of persistence, no clear consensus has emerged either about its definition or about the methods most appropriate for its measurement and analysis. This project strives to fill that gap by reviewing the goals, terminology, and methods of past persistence studies. It was conducted from the perspective of a utility that seeks to acquire demand-side resources and is interested in their long-term durability; it was not conducted from the perspective of the individual consumer. Over 30 persistence studies, articles, and protocols were examined for this report. The review begins by discussing the underpinnings of persistence studies: namely, the definitions of persistence and the purposes of persistence studies. Then. it describes issues relevant to both the collection and analysis of data on the persistence of energy and demand savings. Findings from persistence studies also are summarized. Throughout the review, four studies are used repeatedly to illustrate different methodological and analytical approaches to persistence so that readers can track the data collection. data analysis, and findings of a set of comprehensive studies that represent alternative approaches.

  18. Methodological Issues in Online Qualitative Consumer Behavior Research

    Directory of Open Access Journals (Sweden)

    Žaneta Paunksnienė

    2014-03-01

    Full Text Available The aim of this paper is to reveal and discuss the methodological issues related to online qualitative consumer behavior research. A number of methodological issues are examined, related with the online qualitative research on consumer in-store emotional experience implemented by the authors. It is concluded that the Internet is becoming an increasingly attractive environment for consumer behavior research. A large part of scholars use the Internet as a medium for data collection and analysis. At the same time, researchers study the Internet as a source of information about consumer preferences, their virtual communities, prevailing relationships, traditions and attitudes. The Internet is analyzed as a phenomenon in itself, too. In this article, the Internet is analyzed as a tool for communicating with research participants, and collecting, storing and analyzing data. In general, qualitative inquiry is characterized by contextual and naturalistic approach to the study of objects and processes. Therefore, decision to carry out qualitative study in virtual environment must take additional strategic and tactical solutions. Most often, researchers need to decide about the mode of communication that solves time management, spontaneity and security problems. It is also relevant to sampling and its contents. Different solutions from quantitative studies are required in ensuring the ethics and quality of the study. During the analysis of the qualitative data collected through the Internet, mostly in a form of computer communication language (text, specific characteristics, such as backspacing and correction during the communication that impact spontaneity rate, the absence of non-verbal language, etc., are necessary to be taken into accountIt is concluded that all the above-mentioned issues must be addressed individually to the research topic, object, aim, research problem and the specifics of the respondents. When deciding about the method of

  19. Can Weighting Compensate for Sampling Issues in Internet Surveys?

    NARCIS (Netherlands)

    Vaske, J.J.; Jacobs, M.H.; Sijtsma, M.T.J.; Beaman, J.

    2011-01-01

    While Internet surveys have increased in popularity, results may not be representative of target populations. Weighting is commonly used to compensate for sampling issues. This article compared two surveys conducted in the Netherlands—a random mail survey (n = 353) and a convenience Internet survey

  20. Methodological issues and pitfalls of short safety culture questionnaires

    NARCIS (Netherlands)

    Jagtman, H.M.; Koornneef, F.; Akselsson, R.; Stewart, S.

    2013-01-01

    Safety culture surveys have been fielded in many different sectors of industrial activities. Many of these surveys consist of a long list of questions which is time consuming for the respondents. As part of the FP6 HILAS project a shorter survey has been developed, which aimed at getting a high resp

  1. Methodological issues in the psychology of religion: toward another paradigm?

    Science.gov (United States)

    Belzen, Jacob A; Hood, Ralph W

    2006-01-01

    Recent evaluations have identified the psychology of religion as a field in crisis and have called for a new multilevel interdisciplinary paradigm. However, a critical meta-perspective on methods reveals a broad range of methodologies, each appropriate for particular levels of complexity in the psychology of religion. No single methodology is appropriate for every level, nor can higher levels of complexity be explained by data from lower levels. The authors identify the different types of research practiced in the psychology of religion and critically discuss philosophical presuppositions involved in two major methodological traditions, the empiricist-analytical and the hermeneutical, often identified as quantitative and qualitative traditions, respectively.

  2. Microgenetic Analysis of Moral Development: Theoretical and Methodological Issues

    OpenAIRE

    Barrios, Alia; Barbato,Silviane; Branco,Angela

    2012-01-01

    New ideas and methodologies need to be developed to advance our knowledge in the understanding of moral development. The intertwined nature of human activities, communication processes, and the numerous aspects of morality pose a challenge to researchers to construct a methodology that takes into account cognition, affect, sociocultural processes and characteristics, as well as the active role of individuals in their own development. In this paper we aim at suggesting fresh theoretical ideas ...

  3. 3-D Survey Applied to Industrial Archaeology by Tls Methodology

    Science.gov (United States)

    Monego, M.; Fabris, M.; Menin, A.; Achilli, V.

    2017-05-01

    This work describes the three-dimensional survey of "Ex Stazione Frigorifera Specializzata": initially used for agricultural storage, during the years it was allocated to different uses until the complete neglect. The historical relevance and the architectural heritage that this building represents has brought the start of a recent renovation project and functional restoration. In this regard it was necessary a global 3-D survey that was based on the application and integration of different geomatic methodologies (mainly terrestrial laser scanner, classical topography, and GNSS). The acquisitions of point clouds was performed using different laser scanners: with time of flight (TOF) and phase shift technologies for the distance measurements. The topographic reference network, needed for scans alignment in the same system, was measured with a total station. For the complete survey of the building, 122 scans were acquired and 346 targets were measured from 79 vertices of the reference network. Moreover, 3 vertices were measured with GNSS methodology in order to georeference the network. For the detail survey of machine room were executed 14 scans with 23 targets. The 3-D global model of the building have less than one centimeter of error in the alignment (for the machine room the error in alignment is not greater than 6 mm) and was used to extract products such as longitudinal and transversal sections, plans, architectural perspectives, virtual scans. A complete spatial knowledge of the building is obtained from the processed data, providing basic information for restoration project, structural analysis, industrial and architectural heritage valorization.

  4. Paramedics: A Survey of the Issues.

    Science.gov (United States)

    Lave, Judith R.; And Others

    This report examines some of the issues surrounding the use of paramedic personnel. Following background information, emphasis is placed on programs and demonstration projects, training programs, the potential role of paramedics, the potential functions of paramedics, quality of care, acceptance of paramedics by patients and other personnel, the…

  5. Designing for situated knowledge: methodological issues and more

    NARCIS (Netherlands)

    Martens, Rob; De Laat, Maarten; Verjans, Steven

    2017-01-01

    When it comes to the type of complex questions such as how to design for situated knowledge, there is a strong need for suitable research methodology to address such complex and interwoven problems. This problem not only occurs in this context (design for situated knowledge), but is an underlying

  6. Contemporary Qualitative Research Methodologies and Issues in Literacy Education

    Science.gov (United States)

    Tobin, Joseph; Steinkuehler, Constance A.; Black, Rebecca W.; Clinton, Katherine A.; Hinchman, Kathleen A.; Dillon, Deborah R.

    2005-01-01

    Scholars who are drawn to qualitative research methodologies represent a diverse group of disciplines and fields. They also represent themselves as researchers and the theoretical frameworks in which they work quite differently. Indeed, it was this diversity in representation that initially motivated us to propose a New Directions feature on…

  7. The meaning of dwelling features: conceptual and methodological issues

    NARCIS (Netherlands)

    Coolen, H.C.C.H.

    2008-01-01

    This study is about the meaning of dwelling features. It relates the research areas of housing preferences and the meaning of a dwelling with each other and with aspects of the means-end approach as applied in marketing research. It results in a conceptual and methodological framework for studying t

  8. Diaspora Effects in International Migration : Key Questions and Methodological Issues

    OpenAIRE

    Beine, Michel; Docquier, Frederic; Ozden, Caglar

    2010-01-01

    This paper reviews the existing literature on the impact of migrants networks on the patterns of international migration. It covers the theoretical channels at stake in the global effect of the networks. It identifies the key issues, namely the impact on size, selection and concentration of the migration flows. The paper also reviews the empirical hurdles that the researchers face in assessing the importance of networks. The key issues concern the choice of micro vs a macro approach, the defi...

  9. 2014 Service Academy Gender Relations Survey: Statistical Methodology Report

    Science.gov (United States)

    2014-12-12

    Survey (2014 SAGR) is designed to track sexual assault and sexual harassment issues at the Service Academies. U.S. Code 10, as amended by Section 532...requested that they be included, beginning in 2008, in order to evaluate and improve their programs addressing sexual assault and sexual harassment ...questions on stalking, sexual harassment and its component behaviors, sexist behavior, and prior experiences of unwanted sexual contact. In 2014

  10. Counseling Psychology Research on Sexual (Orientation) Minority Issues: Conceptual and Methodological Challenges and Opportunities

    Science.gov (United States)

    Moradi, Bonnie; Mohr, Jonathan J.; Worthington, Roger L.; Fassinger, Ruth E.

    2009-01-01

    This lead article of the special issue discusses conceptual and methodological considerations in studying sexual minority issues, particularly in research conducted by counseling psychologists (including the work represented in this special issue). First, the overarching challenge of conceptualizing and defining sexual minority populations is…

  11. Diaspora Effects in International Migration : Key Questions and Methodological Issues

    OpenAIRE

    Beine, Michel; Docquier, Frederic; Ozden, Caglar

    2011-01-01

    This paper reviews the existing literature on the impact of migrants networks on the patterns of international migration. It covers the theoretical channels at stake in the global effect of the networks. It identifies the key issues, namely the impact on size, selection and concentration of the migration flows. The paper also reviews the empirical hurdles that the researchers face in asses...

  12. 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.

  13. Design and Implementation Issues in Surveying the Views of Young Children in Ethnolinguistically Diverse Developing Country Contexts

    Science.gov (United States)

    Smith, Hilary A.; Haslett, Stephen J.

    2016-01-01

    This paper discusses issues in the development of a methodology appropriate for eliciting sound quantitative data from primary school children in the complex contexts of ethnolinguistically diverse developing countries. Although these issues often occur in field-based surveys, the large extent and compound effects of their occurrence in…

  14. 3-D SURVEY APPLIED TO INDUSTRIAL ARCHAEOLOGY BY TLS METHODOLOGY

    Directory of Open Access Journals (Sweden)

    M. Monego

    2017-05-01

    Full Text Available This work describes the three-dimensional survey of “Ex Stazione Frigorifera Specializzata”: initially used for agricultural storage, during the years it was allocated to different uses until the complete neglect. The historical relevance and the architectural heritage that this building represents has brought the start of a recent renovation project and functional restoration. In this regard it was necessary a global 3-D survey that was based on the application and integration of different geomatic methodologies (mainly terrestrial laser scanner, classical topography, and GNSS. The acquisitions of point clouds was performed using different laser scanners: with time of flight (TOF and phase shift technologies for the distance measurements. The topographic reference network, needed for scans alignment in the same system, was measured with a total station. For the complete survey of the building, 122 scans were acquired and 346 targets were measured from 79 vertices of the reference network. Moreover, 3 vertices were measured with GNSS methodology in order to georeference the network. For the detail survey of machine room were executed 14 scans with 23 targets. The 3-D global model of the building have less than one centimeter of error in the alignment (for the machine room the error in alignment is not greater than 6 mm and was used to extract products such as longitudinal and transversal sections, plans, architectural perspectives, virtual scans. A complete spatial knowledge of the building is obtained from the processed data, providing basic information for restoration project, structural analysis, industrial and architectural heritage valorization.

  15. Understanding the personhood of Deaf people with dementia: methodological issues.

    Science.gov (United States)

    Young, Alys; Ferguson-Coleman, Emma; Keady, John

    2014-12-01

    This article concerns Deaf people in the United Kingdom, who use sign language, who have a formal diagnosis of dementia and who have participated in interviews in British Sign Language (BSL) about their experience of living with dementia. We address the methodological challenges involved in enabling culturally meaningful participation in circumstances where the non-verbal is not equivalent to the non-linguistic. We demonstrate the use of interpretative narrative representation of data for purposes of cultural brokering. We explore the contribution of Deaf people's experiences and the analysis of their visual, spatial narratives to debates about personhood and the embodied self in dementia studies. Finally, we consider the significance of the situational as cultural in relation to holistic interpretation of narrative.

  16. Developing a science of land change: Challenges and methodological issues

    Science.gov (United States)

    Rindfuss, Ronald R.; Walsh, Stephen J.; Turner, B. L.; Fox, Jefferson; Mishra, Vinod

    2004-01-01

    Land-change science has emerged as a foundational element of global environment change and sustainability science. It seeks to understand the human and environment dynamics that give rise to changed land uses and covers, not only in terms of their type and magnitude but their location as well. This focus requires the integration of social, natural, and geographical information sciences. Each of these broad research communities has developed different ways to enter the land-change problem, each with different means of treating the locational specificity of the critical variables, such as linking the land manager to the parcel being managed. The resulting integration encounters various data, methodological, and analytical problems, especially those concerning aggregation and inference, land-use pixel links, data and measurement, and remote sensing analysis. Here, these integration problems, which hinder comprehensive understanding and theory development, are addressed. Their recognition and resolution are required for the sustained development of land-change science. PMID:15383671

  17. Practical Issues of Conducting a Q Methodology Study: Lessons Learned From a Cross-cultural Study.

    Science.gov (United States)

    Stone, Teresa Elizabeth; Maguire, Jane; Kang, Sook Jung; Cha, Chiyoung

    2016-12-06

    This article advances nursing research by presenting the methodological challenges experienced in conducting a multination Q-methodology study. This article critically analyzes the relevance of the methodology for cross-cultural and nursing research and the challenges that led to specific responses by the investigators. The use of focus groups with key stakeholders supplemented the Q-analysis results. The authors discuss practical issues and shared innovative approaches and provide best-practice suggestions on the use of this flexible methodology. Q methodology has the versatility to explore complexities of contemporary nursing practice and cross-cultural health research.

  18. Working memory and L2 reading: theoretical and methodological issues

    OpenAIRE

    Erçetin, Gülcan

    2015-01-01

    This article reviews research on working memory (WM) and its role in second language (L2) reading. After a brief theoretical account of WM, the article focuses on methods of measuring WM and issues surrounding its measurement. Next, the paper provides a review of studies on the relationship between L1 and L2 WM, their relationships with L2 reading, and the interaction between WM capacity and domain knowledge in terms of their effects on L2 reading comprehension. Conclusions regarding the role...

  19. E-cigarettes: methodological and ideological issues and research priorities.

    Science.gov (United States)

    Etter, Jean-François

    2015-02-16

    Cigarette combustion, rather than either tobacco or nicotine, is the cause of a public health disaster. Fortunately, several new technologies that vaporize nicotine or tobacco, and may make cigarettes obsolete, have recently appeared. Research priorities include the effects of vaporizers on smoking cessation and initiation, their safety and toxicity, use by non-smokers, dual use of vaporizers and cigarettes, passive vaping, renormalization of smoking, and the development of messages that effectively communicate the continuum of risk for tobacco and nicotine products. A major difficulty is that we are chasing a moving target. New products constantly appear, and research results are often obsolete by the time they are published. Vaporizers do not need to be safe, only safer than cigarettes. However, harm reduction principles are often misunderstood or rejected. In the context of a fierce ideological debate, and major investments by the tobacco industry, it is crucial that independent researchers provide regulators and the public with evidence-based guidance. The methodological and ideological hurdles on this path are discussed in this commentary.

  20. Measuring user experience in digital gaming: theoretical and methodological issues

    Science.gov (United States)

    Takatalo, Jari; Häkkinen, Jukka; Kaistinen, Jyrki; Nyman, Göte

    2007-01-01

    There are innumerable concepts, terms and definitions for user experience. Few of them have a solid empirical foundation. In trying to understand user experience in interactive technologies such as computer games and virtual environments, reliable and valid concepts are needed for measuring relevant user reactions and experiences. Here we present our approach to create both theoretically and methodologically sound methods for quantification of the rich user experience in different digital environments. Our approach is based on the idea that the experience received from a content presented with a specific technology is always a result of a complex psychological interpretation process, which components should be understood. The main aim of our approach is to grasp the complex and multivariate nature of the experience and make it measurable. We will present our two basic measurement frameworks, which have been developed and tested in large data set (n=2182). The 15 measurement scales extracted from these models are applied to digital gaming with a head-mounted display and a table-top display. The results show how it is possible to map between experience, technology variables and the background of the user (e.g., gender). This approach can help to optimize, for example, the contents for specific viewing devices or viewing situations.

  1. Medical databases in studies of drug teratogenicity: methodological issues.

    Science.gov (United States)

    Ehrenstein, Vera; Sørensen, Henrik T; Bakketeig, Leiv S; Pedersen, Lars

    2010-01-01

    More than half of all pregnant women take prescription medications, raising concerns about fetal safety. Medical databases routinely collecting data from large populations are potentially valuable resources for cohort studies addressing teratogenicity of drugs. These include electronic medical records, administrative databases, population health registries, and teratogenicity information services. Medical databases allow estimation of prevalences of birth defects with enhanced precision, but systematic error remains a potentially serious problem. In this review, we first provide a brief description of types of North American and European medical databases suitable for studying teratogenicity of drugs and then discuss manifestation of systematic errors in teratogenicity studies based on such databases. Selection bias stems primarily from the inability to ascertain all reproductive outcomes. Information bias (misclassification) may be caused by paucity of recorded clinical details or incomplete documentation of medication use. Confounding, particularly confounding by indication, can rarely be ruled out. Bias that either masks teratogenicity or creates false appearance thereof, may have adverse consequences for the health of the child and the mother. Biases should be quantified and their potential impact on the study results should be assessed. Both theory and software are available for such estimation. Provided that methodological problems are understood and effectively handled, computerized medical databases are a valuable source of data for studies of teratogenicity of drugs.

  2. METHODOLOGICAL PROBLEMS AND SOLUTION PROPOSALS IN THE CYPRUS ISSUES

    Directory of Open Access Journals (Sweden)

    Soyalp TAMÇELİK

    2010-08-01

    Full Text Available In this research, the methodological problems and irregularities in the studies that were made or are still made regarding the Cyprus problem were considered. However this information can not be understood unless put into a theoretical framework.Empirical histories read about the Cyprus problem, in truth, are not factual at all. Conversely, they are composed of a series of accepted judgments, which necessitates setting eyes on, interpreting and evaluating factual stacks of knowledge. However, as dealing with these stacks, researchers studying on the Cyprus problem are supposed to identify events and conditions correctly with time, location and person coordination. Because it requires to dealing with, scrutinize, process and evaluate empirical content of history, and also to reestablish or make sense of social, political, economical, intellectual, aesthetical, religious, moral values and institutions of different cultures and civilizations both created by human experience and formed within this experience. Therefore, as making analysis on the Cyprus problem, it is of great importance to decide on the most suitable method in defining facts, know analytical problems and produce analytical category information.Pursuant to this fact, the analysis consists of three main chapters. While, in the first chapter, some ideas were stated on the method to be conducted in studies to be made on the Cyprus matter; methods and proposals to be accomplished in studies to be made on this matter were spoken in the second chapter. In the final chapter, concepts and facts in studies to be made on the Cyprus matter were mentioned.

  3. Emerging issues and methodological advances in fisheries reproductive biology

    DEFF Research Database (Denmark)

    Lowerre-Barbieri, Susan K.; Brown-Peterson, Nancy J.; Murua, Hilario;

    2011-01-01

    Although incorporating detailed reproductive data into all stock assessments is not a practical goal, the need to understand how reproductive biology affects population productivity is being increasingly recognized.More research focused on reproductive biology—coupled with a shift towards...... development, which is most accurately evaluated with histology. This special section of Marine and Coastal Fisheries contains contributions from a workshop on the gonadal histology of fishes that was held in Cadiz, Spain, during June 2009. These papers cover a wide range of species and reproductive topics...... a resilience perspective in fisheries science—is resulting in challenges to many long-held assumptions; the emergence of important new issues; and identification of the need to improve data and methods used in reproductive studies. Typically, data for reproductive studies are based on an assessment of gonadal...

  4. Methodological and Conceptual Issues Confronting a Cross-Country Delphi Study of Educational Program Evaluation

    Science.gov (United States)

    Hung, Hsin-Ling; Altschuld, James W.; Lee, Yi-Fang

    2008-01-01

    Although the Delphi is widely used, research on certain methodological issues is somewhat limited. After a brief introduction to the strengths, limitations, and methodological challenges of the technique, we share our experiences (as well as problems encountered) with an electronic Delphi of educational program evaluation (EPE) in the Asia-Pacific…

  5. Medical databases in studies of drug teratogenicity: methodological issues

    Directory of Open Access Journals (Sweden)

    Vera Ehrenstein

    2010-03-01

    Full Text Available Vera Ehrenstein1, Henrik T Sørensen1, Leiv S Bakketeig1,2, Lars Pedersen11Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark; 2Norwegian Institute of Public Health, Oslo, NorwayAbstract: More than half of all pregnant women take prescription medications, raising concerns about fetal safety. Medical databases routinely collecting data from large populations are potentially valuable resources for cohort studies addressing teratogenicity of drugs. These include electronic medical records, administrative databases, population health registries, and teratogenicity information services. Medical databases allow estimation of prevalences of birth defects with enhanced precision, but systematic error remains a potentially serious problem. In this review, we first provide a brief description of types of North American and European medical databases suitable for studying teratogenicity of drugs and then discuss manifestation of systematic errors in teratogenicity studies based on such databases. Selection bias stems primarily from the inability to ascertain all reproductive outcomes. Information bias (misclassification may be caused by paucity of recorded clinical details or incomplete documentation of medication use. Confounding, particularly confounding by indication, can rarely be ruled out. Bias that either masks teratogenicity or creates false appearance thereof, may have adverse consequences for the health of the child and the mother. Biases should be quantified and their potential impact on the study results should be assessed. Both theory and software are available for such estimation. Provided that methodological problems are understood and effectively handled, computerized medical databases are a valuable source of data for studies of teratogenicity of drugs.Keywords: databases, birth defects, epidemiologic methods, pharmacoepidemiology

  6. Cannabis cultivation: Methodological issues for obtaining medical-grade product.

    Science.gov (United States)

    Chandra, Suman; Lata, Hemant; ElSohly, Mahmoud A; Walker, Larry A; Potter, David

    2017-02-12

    As studies continue to reveal favorable findings for the use of cannabidiol in the management of childhood epilepsy syndromes and other disorders, best practices for the large-scale production of Cannabis are needed for timely product development and research purposes. The processes of two institutions with extensive experience in producing large-scale cannabidiol chemotype Cannabis crops-GW Pharmaceuticals and the University of Mississippi-are described, including breeding, indoor and outdoor growing, harvesting, and extraction methods. Such practices have yielded desirable outcomes in Cannabis breeding and production: GW Pharmaceuticals has a collection of chemotypes dominant in any one of eight cannabinoids, two of which-cannabidiol and cannabidivarin-are supporting epilepsy clinical trial research, whereas in addition to a germplasm bank of high-THC, high-CBD, and intermediate type cannabis varieties, the team at University of Mississippi has established an in vitro propagation protocol for cannabis with no detectable variations in morphologic, physiologic, biochemical, and genetic profiles as compared to the mother plants. Improvements in phytocannabinoid yields and growing efficiency are expected as research continues at these institutions. This article is part of a Special Issue entitled "Cannabinoids and Epilepsy".

  7. Methodological issues in using data from social networking sites.

    Science.gov (United States)

    Leng, Ho Keat

    2013-09-01

    Social networking sites (SNS) have become increasingly popular in recent years. With the amount of data available on SNS, the potential exists for researchers to use these data for their research. However, like any research method, there are limitations in using data from SNS. First, as members of SNS are not representative of the population, there is the limitation in generalizing the findings to the population. Second, in SNS with a low level of activity, there is also the issue of whether the data are sufficient for analysis. Third, the validity of the postings by members of SNS should be considered, as members of SNS may not be truthful in their responses. In addition, as the environment for SNS favors a quick emotive response as opposed to a cognitive response, the review suggests that the researcher will need to be aware of possibly different behavior when members of a SNS are faced with a high involvement decision. This article concludes that while there is potential in analyzing data from SNS, researchers should be aware of the limitations in using these data.

  8. Methodology of Global Adult Tobacco Survey (GATS), Malaysia, 2011.

    Science.gov (United States)

    Omar, Azahadi; Yusoff, Muhammad Fadhli Mohd; Hiong, Tee Guat; Aris, Tahir; Morton, Jeremy; Pujari, Sameer

    Malaysia participated in the second phase of the Global Adult Tobacco Survey (GATS) in 2011. GATS, a new component of the Global Tobacco Surveillance System, is a nationally representative household survey of adults 15 years old or above. The objectives of GATS Malaysia were to (i) systematically monitor tobacco use among adults and track key indicators of tobacco control and (ii) track the implementation of some of the Framework Convention of Tobacco Control (FCTC)-recommended demand related policies. GATS Malaysia 2011 was a nationwide cross-sectional survey using multistage stratified sampling to select 5112 nationally representative households. One individual aged 15 years or older was randomly chosen from each selected household and interviewed using handheld device. GATS Core Questionnaire with optional questions was pre-tested and uploaded into handheld devices after repeated quality control processes. Data collectors were trained through a centralized training. Manuals and picture book were prepared to aid in the training of data collectors and during data collection. Field-level data were aggregated on a daily basis and analysed twice a week. Quality controls were instituted to ensure collection of high quality data. Sample weighting and analysis were conducted with the assistance of researchers from the Centers for Disease Control and Prevention, Atlanta, USA. GATS Malaysia received a total response rate of 85.3% from 5112 adults surveyed. Majority of the respondents were 25-44 years old and Malays. The robust methodology used in the GATS Malaysia provides national estimates for tobacco used classified by socio-demographic characteristics and reliable data on various dimensions of tobacco control.

  9. Towards an Airframe Noise Prediction Methodology: Survey of Current Approaches

    Science.gov (United States)

    Farassat, Fereidoun; Casper, Jay H.

    2006-01-01

    In this paper, we present a critical survey of the current airframe noise (AFN) prediction methodologies. Four methodologies are recognized. These are the fully analytic method, CFD combined with the acoustic analogy, the semi-empirical method and fully numerical method. It is argued that for the immediate need of the aircraft industry, the semi-empirical method based on recent high quality acoustic database is the best available method. The method based on CFD and the Ffowcs William- Hawkings (FW-H) equation with penetrable data surface (FW-Hpds ) has advanced considerably and much experience has been gained in its use. However, more research is needed in the near future particularly in the area of turbulence simulation. The fully numerical method will take longer to reach maturity. Based on the current trends, it is predicted that this method will eventually develop into the method of choice. Both the turbulence simulation and propagation methods need to develop more for this method to become useful. Nonetheless, the authors propose that the method based on a combination of numerical and analytical techniques, e.g., CFD combined with FW-H equation, should also be worked on. In this effort, the current symbolic algebra software will allow more analytical approaches to be incorporated into AFN prediction methods.

  10. Methodological design of the National Health and Nutrition Survey 2016

    Directory of Open Access Journals (Sweden)

    Martín Romero-Martínez

    2017-05-01

    Full Text Available Objective. Describe the design methodology of the halfway health and nutrition national survey (Ensanut-MC 2016. Materials and methods. The Ensanut-MC is a national probabilistic survey whose objective population are the in­habitants of private households in Mexico. The sample size was determined to make inferences on the urban and rural areas in four regions. Describes main design elements: target population, topics of study, sampling procedure, measurement procedure and logistics organization. Results. A final sample of 9 479 completed household interviews, and a sample of 16 591 individual interviews. The response rate for households was 77.9%, and the response rate for individuals was 91.9%. Conclusions. The Ensanut-MC probabilistic design allows valid statistical inferences about interest parameters for Mexico´s public health and nutrition, specifically on over­weight, obesity and diabetes mellitus. Updated information also supports the monitoring, updating and formulation of new policies and priority programs.

  11. Fisheye Photogrammetry: Tests and Methodologies for the Survey of Narrow Spaces

    Science.gov (United States)

    Perfetti, L.; Polari, C.; Fassi, F.

    2017-02-01

    The research illustrated in this article aimed at identifying a good standard methodology to survey very narrow spaces during 3D investigation of Cultural Heritage. It is an important topic in today's era of BIM modelling applied to Cultural Heritage. Spaces like staircases, corridors and passages are very common in the architectural or archaeological fields, and obtaining a 3D-oriented survey of those areas can be a very complex task when completeness of the model and high precision are requested. Photogrammetry appears to be the most promising solution in terms of versatility and manoeuvrability also considering the quality of the required data. Fisheye lenses were studied and tested in depth because of their significant advantage in the field of view if compared with rectilinear lenses. This advantage alone can be crucial to reduce the total amount of photos and, as a consequence, to obtain manageable data, to simplify the survey phase and to significantly reduce the elaboration time. In order to overcome the main issue that arise when using fisheye lenses, which is the lack of rules that can be employed to design the survey, a general mathematical formulation to precisely estimate the GSD (Ground Sampling Distance) for every optical projection is presented here. A complete survey of a real complex case study was performed in order to test and stress the proposed methodology, and to handle a fisheye-based survey from beginning to end: the photogrammetric survey of the Minguzzi Staircase. It is a complex service spiral-staircase located in the Duomo di Milano with a total height of 25 meters and characterized by a narrow walkable space about 70 centimetres wide.

  12. Electronic Surveys: Methodological Implications for Using the World Wide Web to Collect Survey Data.

    Science.gov (United States)

    Bertot, John Carlo; McClure, Charles R.

    1996-01-01

    Focuses on a Web-based version of a national survey for the National Commission on Libraries and Information Science (NCLIS) of public library involvement with the Internet. Describes the procedures used to develop the Web-based questionnaire, identifies issues concerning Web-based research, and presents recommendations for the future…

  13. Impact of methodological "shortcuts" in conducting public health surveys: Results from a vaccination coverage survey

    Directory of Open Access Journals (Sweden)

    Luman Elizabeth T

    2008-03-01

    Full Text Available Abstract Background Lack of methodological rigor can cause survey error, leading to biased results and suboptimal public health response. This study focused on the potential impact of 3 methodological "shortcuts" pertaining to field surveys: relying on a single source for critical data, failing to repeatedly visit households to improve response rates, and excluding remote areas. Methods In a vaccination coverage survey of young children conducted in the Commonwealth of the Northern Mariana Islands in July 2005, 3 sources of vaccination information were used, multiple follow-up visits were made, and all inhabited areas were included in the sampling frame. Results are calculated with and without these strategies. Results Most children had at least 2 sources of data; vaccination coverage estimated from any single source was substantially lower than from all sources combined. Eligibility was ascertained for 79% of households after the initial visit and for 94% of households after follow-up visits; vaccination coverage rates were similar with and without follow-up. Coverage among children on remote islands differed substantially from that of their counterparts on the main island indicating a programmatic need for locality-specific information; excluding remote islands from the survey would have had little effect on overall estimates due to small populations and divergent results. Conclusion Strategies to reduce sources of survey error should be maximized in public health surveys. The impact of the 3 strategies illustrated here will vary depending on the primary outcomes of interest and local situations. Survey limitations such as potential for error should be well-documented, and the likely direction and magnitude of bias should be considered.

  14. Methodological issues in analyzing human communication – the complexities of multimodality

    DEFF Research Database (Denmark)

    Høegh, Tina

    2017-01-01

    This chapter develops a multimodal method for transcribing speech, communication, and performance. The chapter discusses the methodological solutions to the complex translation of speech, language rhythm and gesture in time and space into the two-dimensional format of a piece of paper. The focus...... is on orally performed literature and its pedagogical implications. The chapter thoroughly examines relevant theories and discusses methodological issues of research in language, literature, and cultural performance. Current themes within social semiotics, metrical studies, ethnography of speaking, narratology...

  15. Conceptual and methodological issues in studying alcohol’s harm to others

    Directory of Open Access Journals (Sweden)

    Room Robin

    2016-12-01

    Full Text Available While there is a longer history of concern about alcohol’s harm to others, researchers’ interest has intensified in the last few years. The background of variation in concern over time in different societies is outlined. Three main traditions of research have emerged: population survey studies of such harm from the perspective of the ‘other’; analysis of register or case-record data which includes information on the involvement of another’s drinking in the case; and qualitative studies of interactions and experiences involved in particular harms from others’ drinking. In the course of the new spate of studies, many conceptual and methodological issues have arisen, some of which are considered in the paper. The diverse types of harms which have been studied are discussed. The social and personal nature of many of the harms means they do not fit easily into a disability or costing model, raising questions about how they might best be counted and aggregated. Harm from others’ drinking is inherently interactional, and subject to varying definitions of what counts as harm. The attribution to drinking, in the usual situation of conditional causation, is also subject to variation, with moral politics potentially coming into play. For measurement and comparison, account needs to be taken of cultural and individual variations in perceptions and thresholds of what counts as a harm, and attribution to alcohol. The view from the windows of a population survey and of a response agency case register are often starkly different, and research is needed, as an input and spur to policy initiatives, on what influences this difference and whether and how the views might be reconciled.

  16. The XMM Cluster Survey: X-ray analysis methodology

    CERN Document Server

    Lloyd-Davies, E J; Hosmer, Mark; Mehrtens, Nicola; Davidson, Michael; Sabirli, Kivanc; Mann, Robert G; Hilton, Matt; Liddle, Andrew R; Viana, Pedro T P; Campbell, Heather C; Collins, Chris A; Dubois, E Naomi; Freeman, Peter; Hoyle, Ben; Kay, Scott T; Kuwertz, Emma; Miller, Christopher J; Nichol, Robert C; Sahlen, Martin; Stanford, S Adam; Stott, John P

    2010-01-01

    The XMM Cluster Survey (XCS) is a serendipitous search for galaxy clusters using all publicly available data in the XMM- Newton Science Archive. Its main aims are to measure cosmological parameters and trace the evolution of X-ray scaling relations. In this paper we describe the data processing methodology applied to the 5776 XMM observations used to construct the current XCS source catalogue. A total of 3669 > 4-{\\sigma} cluster candidates with >50 background-subtracted X-ray counts are extracted from a total non-overlapping area suitable for cluster searching of 410 deg^2 . Of these, 1022 candidates are detected with >300 X-ray counts, and we demonstrate that robust temperature measurements can be obtained down to this count limit. We describe in detail the automated pipelines used to perform the spectral and surface brightness fitting for these sources, as well as to estimate redshifts from the X-ray data alone. A total of 517 (126) X-ray temperatures to a typical accuracy of <40 (<10) per cent have ...

  17. Behavioral issues in operations management new trends in design, management, and methodologies

    CERN Document Server

    2013-01-01

    Behavioral Operations Management  has been identified in the last years as one of the most promising emerging fields in Operations Management. Behavioral Issues in Operations Management  explains and examines up-to-date research in this field, which works to analyze the impact of human behavior on the management of complex operating systems.   A collection of studies from leading scholars presents different methodologies and approaches, supported by real data and case studies. Issues such as building trust and strong cooperative relationships with suppliers, enhancing motivation and designing proper incentives for stimulating more effective decision maker behaviours are considered. The main decision-making processes affected by behavioral issues are also analyzed with a focus on new product development, logistics, and supply chain integration.   The broad coverage of methodologies and practical implications makes Behavioral Issues in Operations Management an ideal reference for both researchers developing...

  18. A Content and Methodological Review of Articles Concerning Multiracial Issues in Six Major Counseling Journals

    Science.gov (United States)

    Edwards, Lisa M.; Pedrotti, Jennifer Teramoto

    2008-01-01

    This study describes a comprehensive content and methodological review of articles about multiracial issues in 6 journals related to counseling up to the year 2006. The authors summarize findings about the 18 articles that emerged from this review of the "Journal of Counseling Psychology," "Journal of Counseling & Development," "The Counseling…

  19. Methodological Issues in Evaluating Rorschach Validity: A Comment on Burns and Viglione (1996), Weiner (1996), and Ganellen (1996).

    Science.gov (United States)

    Wood, James M.; Nezworski, M. Teresa; Stejskal, William J.; Garven, Sena; West, Stephen G.

    1999-01-01

    Discusses three recent studies of the validity of Rorschach test (H. Rorschach, 1921) that have not evaluated methodological issues carefully. Identifies methodological errors in each study and offers specific information for the interpretation of Rorschach results. (SLD)

  20. Reflections on International Comparative Education Survey Methodology: A Case Study of the European Survey on Language Competences

    Science.gov (United States)

    Ashton, Karen

    2016-01-01

    This paper reflects on the methodology used in international comparative education surveys by conducting a systematic review of the European Survey on Language Competences (ESLC). The ESLC was administered from February to March 2011, with final results released in June 2012. The survey tested approximately 55,000 students across 14 European…

  1. Reflections on International Comparative Education Survey Methodology: A Case Study of the European Survey on Language Competences

    Science.gov (United States)

    Ashton, Karen

    2016-01-01

    This paper reflects on the methodology used in international comparative education surveys by conducting a systematic review of the European Survey on Language Competences (ESLC). The ESLC was administered from February to March 2011, with final results released in June 2012. The survey tested approximately 55,000 students across 14 European…

  2. Cortisol as a Biomarker of Stress in Term Human Labor: Physiological and Methodological Issues

    Science.gov (United States)

    Newton, Edward R.; Tanner, Charles J.; Heitkemper, Margaret M.

    2013-01-01

    Literature on the use of plasma cortisol to quantify psychophysiological stress in humans is extensive. However, in parturition at term gestation the use of cortisol as a biomarker of stress is particularly complex. Plasma cortisol levels increase as labor progresses. This increase seems to be important for maintenance of maternal/fetal wellbeing and facilitation of normal labor progress. Unique physiological and methodological issues involved in the use of cortisol as a biomarker of stress in labor present challenges for researchers. This review examines these issues, suggests mixed methods and within-subject repeated measures designs, and offers recommendations for assay procedures for parturient sampling. Documentation of clinical interventions and delivery outcomes may elucidate relationships among psychophysiological stressors, cortisol and normal labor progress. With attention to these methodological issues, analysis of plasma cortisol may lead to clinical interventions that support normal labor physiology. PMID:23338011

  3. Survey of Transmission Cost Allocation Methodologies for Regional Transmission Organizations

    Energy Technology Data Exchange (ETDEWEB)

    Fink, S.; Porter, K.; Mudd, C.; Rogers, J.

    2011-02-01

    The report presents transmission cost allocation methodologies for reliability transmission projects, generation interconnection, and economic transmission projects for all Regional Transmission Organizations.

  4. Refinement of Research Surveying in Software Methodologies by Analogy: finding your patch

    Directory of Open Access Journals (Sweden)

    Eugene Doroshenko

    1999-05-01

    Full Text Available To enhance research surveying in software methodologies, a model is introduced that can indicate field maturity based on vocabulary and relevant literature. This model is developed by drawing analogies with software methodologies. Two analogies are used: software models and software life cycles or processes. How this model can reduce research surveying problems for researchers is described using extracts from application results as examples. Although the model does support research surveying activities, it cannot choose the subject for the researcher.

  5. Difficult to measure constructs: conceptual and methodological issues concerning participation and environmental factors.

    Science.gov (United States)

    Whiteneck, Gale; Dijkers, Marcel P

    2009-11-01

    For rehabilitation and disability research, participation and environment are 2 crucial constructs that have been placed center stage by the International Classification of Functioning, Disability and Health (ICF). However, neither construct is adequately conceptualized by the ICF, and both are difficult to measure. This article addresses conceptual and methodologic issues related to these ICF constructs, and recommends an improved distinction between activities and participation, as well as elaboration of environment. A division of the combined ICF categories for activity and participation into 2 separate taxonomies is proposed to guide future research. The issue of measuring participation from objective and subjective perspectives is examined, and maintaining these distinct conceptual domains in the measurement of participation is recommended. The methodological issues contributing to the difficulty of measuring participation are discussed, including potential dimensionality, alternative metrics, and the appropriateness of various measurement models. For environment, the need for theory to focus research on those aspects of the environment that interact with individuals' impairments and functional limitations in affecting activities and participation is discussed, along with potential measurement models for those aspects. The limitations resulting from reliance on research participants as reporters on their own environment are set forth. Addressing these conceptual and methodological issues is required before the measurement of participation and environmental factors can advance and these important constructs can be used more effectively in rehabilitation and disability observational research and trials.

  6. Perceptions of older people among Chinese adolescents: conceptual and methodological issues.

    Science.gov (United States)

    So, Ka Man; Shek, Daniel T L

    2011-01-01

    Ageism against older people exists worldwide almost among all age groups and adolescents are of no exception. Numerous studies with specific reference to adolescents of different age, gender, educational level, socioeconomic background, knowledge about aging and experiences with older people showed that they had different perceptions of and attitudes toward older people, but such findings are not entirely conclusive. The situation of Hong Kong is even more confused as there are few studies examining this topic. It is argued that the conflicting findings are largely due to conceptual and methodological problems in the studies. This paper examines the conceptual and methodological issues in this area and outlines suggestions for future research.

  7. Green Cellular Networks: A Survey, Some Research Issues and Challenges

    CERN Document Server

    Hasan, Ziaul; Bhargava, Vijay K

    2011-01-01

    Energy efficiency in cellular networks is a growing concern for cellular operators to not only maintain profitability, but also to reduce the overall environment effects. This emerging trend of achieving energy efficiency in cellular networks is motivating the standardization authorities and network operators to continuously explore future technologies in order to bring improvements in the entire network infrastructure. In this article, we present a brief survey of methods to improve the power efficiency of cellular networks, explore some research issues and challenges and suggest some techniques to enable an energy efficient or "green" cellular network. Since base stations consume a maximum portion of the total energy used in a cellular system, we will first provide a comprehensive survey on techniques to obtain energy savings in base stations. Next, we discuss how heterogenous network deployment based on micro, pico and femto-cells can be used to achieve this goal. Since cognitive radio and cooperative rela...

  8. The Measure of a Nation: The USDA and the Rise of Survey Methodology

    Science.gov (United States)

    Mahoney, Kevin T.; Baker, David B.

    2007-01-01

    Survey research has played a major role in American social science. An outgrowth of efforts by the United States Department of Agriculture in the 1930s, the Division of Program Surveys (DPS) played an important role in the development of survey methodology. The DPS was headed by the ambitious and entrepreneurial Rensis Likert, populated by young…

  9. An Evaluation Methodology Development and Application Process for Severe Accident Safety Issue Resolution

    Directory of Open Access Journals (Sweden)

    Robert P. Martin

    2012-01-01

    Full Text Available A general evaluation methodology development and application process (EMDAP paradigm is described for the resolution of severe accident safety issues. For the broader objective of complete and comprehensive design validation, severe accident safety issues are resolved by demonstrating comprehensive severe-accident-related engineering through applicable testing programs, process studies demonstrating certain deterministic elements, probabilistic risk assessment, and severe accident management guidelines. The basic framework described in this paper extends the top-down, bottom-up strategy described in the U.S Nuclear Regulatory Commission Regulatory Guide 1.203 to severe accident evaluations addressing U.S. NRC expectation for plant design certification applications.

  10. Methodological issues in the design of a rheumatoid arthritis activity score and its cut-offs

    Directory of Open Access Journals (Sweden)

    Collignon O

    2014-07-01

    Full Text Available Olivier Collignon Centre de Recherche Public de la Santé (CRP-Santé, Competences Centre for Methodology and Statistics (CCMS, Strassen, Luxembourg Abstract: Activity of rheumatoid arthritis (RA can be evaluated using several scoring scales based on clinical features. The most widely used one is the Disease Activity Score involving 28 joint counts (DAS28 for which cut-offs were proposed to help physicians classify patients. However, inaccurate scoring can lead to inappropriate medical decisions. In this article some methodological issues in the design of such a score and its cut-offs are highlighted in order to further propose a strategy to overcome them. As long as the issues reviewed in this article are not addressed, results of studies based on standard disease activity scores such as DAS28 should be considered with caution. Keywords: DAS28, disease activity score, penalized logistic regression, clinical prediction, modeling

  11. Integrating rock mechanics issues with repository design through design process principles and methodology

    Energy Technology Data Exchange (ETDEWEB)

    Bieniawski, Z.T. [Pennsylvania State Univ., University Park, PA (United States)

    1996-04-01

    A good designer needs not only knowledge for designing (technical know-how that is used to generate alternative design solutions) but also must have knowledge about designing (appropriate principles and systematic methodology to follow). Concepts such as {open_quotes}design for manufacture{close_quotes} or {open_quotes}concurrent engineering{close_quotes} are widely used in the industry. In the field of rock engineering, only limited attention has been paid to the design process because design of structures in rock masses presents unique challenges to the designers as a result of the uncertainties inherent in characterization of geologic media. However, a stage has now been reached where we are be able to sufficiently characterize rock masses for engineering purposes and identify the rock mechanics issues involved but are still lacking engineering design principles and methodology to maximize our design performance. This paper discusses the principles and methodology of the engineering design process directed to integrating site characterization activities with design, construction and performance of an underground repository. Using the latest information from the Yucca Mountain Project on geology, rock mechanics and starter tunnel design, the current lack of integration is pointed out and it is shown how rock mechanics issues can be effectively interwoven with repository design through a systematic design process methodology leading to improved repository performance. In essence, the design process is seen as the use of design principles within an integrating design methodology, leading to innovative problem solving. In particular, a new concept of {open_quotes}Design for Constructibility and Performance{close_quotes} is introduced. This is discussed with respect to ten rock mechanics issues identified for repository design and performance.

  12. Brain Dynamics: Methodological Issues and Applications in Psychiatric and Neurologic Diseases

    Science.gov (United States)

    Pezard, Laurent

    The human brain is a complex dynamical system generating the EEG signal. Numerical methods developed to study complex physical dynamics have been used to characterize EEG since the mid-eighties. This endeavor raised several issues related to the specificity of EEG. Firstly, theoretical and methodological studies should address the major differences between the dynamics of the human brain and physical systems. Secondly, this approach of EEG signal should prove to be relevant for dealing with physiological or clinical problems. A set of studies performed in our group is presented here within the context of these two problematic aspects. After the discussion of methodological drawbacks, we review numerical simulations related to the high dimension and spatial extension of brain dynamics. Experimental studies in neurologic and psychiatric disease are then presented. We conclude that if it is now clear that brain dynamics changes in relation with clinical situations, methodological problems remain largely unsolved.

  13. A survey of load methodologies for shuttle orbiter payloads

    Science.gov (United States)

    Chen, J. C.; Garba, J. A.; Salama, M.; Trubert, M.

    1981-01-01

    Loads methods currently being used to design planetary spacecraft to be launched on the shuttle orbiter are summarized. Experiences gained from expendable launch vehicle payloads are used to develop methodologies for the space shuttle orbiter payloads. The objectives for the development of a new methodology for the shuttle payloads are to reduce the cost and schedule for the payload load analysis by decoupling the payload analysis from the launch vehicle to the maximum extent possible. Methods are described for payload member load estimation or obtaining upper bounds for dynamic loads, as well as load prediction or calculating actual transient member load time histories.

  14. 2016 Workplace and Gender Relations Survey of Active Duty Members: Statistical Methodology Report

    Science.gov (United States)

    2017-03-01

    MEMBERS: STATISTICAL METHODOLOGY REPORT Office of People Analytics (OPA) Defense Research , Surveys , and Statistics Center 4800 Mark Center Drive...Introduction The Defense Research , Surveys , and Statistics Center, Office of People Analytics (OPA), conducts both web-based and paper-and-pen surveys to... Research Surveys , and Statistics Center (RSSC) resided within the Defense Manpower Data Center (DMDC). In 2016, the Defense Human Resource Activity

  15. Methodology of the Global Adult Tobacco Survey - 2008-2010.

    Science.gov (United States)

    Palipudi, Krishna Mohan; Morton, Jeremy; Hsia, Jason; Andes, Linda; Asma, Samira; Talley, Brandon; Caixeta, Roberta D; Fouad, Heba; Khoury, Rula N; Ramanandraibe, Nivo; Rarick, James; Sinha, Dhirendra N; Pujari, Sameer; Tursan d'Espaignet, Edouard

    2016-06-01

    In 2008, the Centers for Disease Control and Prevention (CDC) and the World Health Organization developed the Global Adult Tobacco Survey (GATS), an instrument to monitor global tobacco use and measure indicators of tobacco control. GATS, a nationally representative household survey of persons aged 15 years or older, was conducted for the first time during 2008-2010 in 14 low- and middle-income countries. In each country, GATS used a standard core questionnaire, sample design, and procedures for data collection and management and, as needed, added country-specific questions that were reviewed and approved by international experts. The core questionnaire included questions about various characteristics of the respondents, their tobacco use (smoking and smokeless), and a wide range of tobacco-related topics (cessation; secondhand smoke; economics; media; and knowledge, attitudes, and perceptions). In each country, a multistage cluster sample design was used, with households selected proportionate to the size of the population. Households were chosen randomly within a primary or secondary sampling unit, and one respondent was selected at random from each household to participate in the survey. Interviewers administered the survey in the country's local language(s) using handheld electronic data collection devices. Interviews were conducted privately, and same-sex interviewers were used in countries where mixed-sex interviews would be culturally inappropriate. All 14 countries completed the survey during 2008-2010. In each country, the ministry of health was the lead coordinating agency for GATS, and the survey was implemented by national statistical organizations or surveillance institutes. This article describes the background and rationale for GATS and includes a comprehensive description of the survey methods and protocol.

  16. Long-range oil and gas forecasting methodologies: literature survey

    Energy Technology Data Exchange (ETDEWEB)

    Cherniavsky, E.A.

    1980-08-01

    Performance of long-range energy system analyses requires the capability to project conventional domestic oil and gas supplies in the long term. The objective of the Long-range Forecasting Methodology project is to formulate an approach to this problem which will be compatible with the principal tool employed by the Energy Information Administration of the Department of Energy for long-range energy system analyses, the Long-term Energy Analysis Package (LEAP). This paper reports on projection methodologies that have appeared in the literature, evaluates them in terms of their applicability to the LEAP framework, and discusses the principal determinants of conventional domestic oil and gas supply in the long run.

  17. Problems and Issues in Using Computer- Based Support Tools to Enhance 'Soft' Systems Methodologies

    Directory of Open Access Journals (Sweden)

    Mark Stansfield

    2001-11-01

    Full Text Available This paper explores the issue of whether computer-based support tools can enhance the use of 'soft' systems methodologies as applied to real-world problem situations. Although work has been carried out by a number of researchers in applying computer-based technology to concepts and methodologies relating to 'soft' systems thinking such as Soft Systems Methodology (SSM, such attempts appear to be still in their infancy and have not been applied widely to real-world problem situations. This paper will highlight some of the problems that may be encountered in attempting to develop computer-based support tools for 'soft' systems methodologies. Particular attention will be paid to an attempt by the author to develop a computer-based support tool for a particular 'soft' systems method of inquiry known as the Appreciative Inquiry Method that is based upon Vickers' notion of 'appreciation' (Vickers, 196S and Checkland's SSM (Checkland, 1981. The final part of the paper will explore some of the lessons learnt from developing and applying the computer-based support tool to a real world problem situation, as well as considering the feasibility of developing computer-based support tools for 'soft' systems methodologies. This paper will put forward the point that a mixture of manual and computer-based tools should be employed to allow a methodology to be used in an unconstrained manner, but the benefits provided by computer-based technology should be utilised in supporting and enhancing the more mundane and structured tasks.

  18. Methodology of the National School-based Health Survey in Malaysia, 2012.

    Science.gov (United States)

    Yusoff, Fadhli; Saari, Riyanti; Naidu, Balkish M; Ahmad, Noor Ani; Omar, Azahadi; Aris, Tahir

    2014-09-01

    The National School-Based Health Survey 2012 was a nationwide school health survey of students in Standard 4 to Form 5 (10-17 years of age), who were schooling in government schools in Malaysia during the period of data collection. The survey comprised 3 subsurveys: the Global School Health Survey (GSHS), the Mental Health Survey, and the National School-Based Nutrition Survey. The aim of the survey was to provide data on the health status of adolescents in Malaysia toward strengthening the adolescent health program in the country. The design of the survey was created to fulfill the requirements of the 3 subsurveys. A 2-stage stratified sampling method was adopted in the sampling. The methods for data collection were via questionnaire and physical examination. The National School-Based Health Survey 2012 adopted an appropriate methodology for a school-based survey to ensure valid and reliable findings.

  19. Methodology of the Global Adult Tobacco Survey in China, 2010

    Institute of Scientific and Technical Information of China (English)

    Jason HSIA; Gong-Huan YANG; Qiang LI; Lin XIAO; Yan YANG; Yan-Wei WU; Samira ASMA

    2010-01-01

    @@ INTRODUCTION The Global Adult Tobacco Survey (GATS) is a component of Global Tobacco Surveillance System (GTSS) under auspices of the Bloomberg philanthropy and the Bill and Melinda Gates Foundation. GATS is a household survey with a standard protocol and its goals are to measure tobacco use, to assess changes due to policy and to facilitate cross country comparison. China is the largest consumer and producer of tobacco in the world. China was selected as one of 14 countries of high burden of tobacco use, large population, and mostly low income, to conduct the GATS.

  20. Methodological proposal for the jotted issue of the first epoch of the Hero magazine.

    Directory of Open Access Journals (Sweden)

    Maité García Díaz

    2013-07-01

    Full Text Available During the neocolonial republic emerges in Sancti Spiritus a very significative magazine of artistic, literary and scientific sketch: Hero, founded by Jacinto Gomer Fernández-Morera and Anastacio Fernández-Morera del Castillo, it first appeared on December 20th 1907. This issue constitutes a vivid reflect of the commercial, literary, cultural, scientific and historic panorama and above all, of the life of the middle and high class in Sancti Spiritus at the beginning of the XX century. The need to divulge the advantage the texts of Hero constitute for the high school and university students, also to humanistic profile graduates and others, such as investigators, evidenced the need to carry out an investigation that pursued such purposes. That’s why the methodological proposal for the jotted issue of the first epoch of the Hero magazine (1907-1908 takes place, composed by 38 publications, departing from the fundamental theorizations about the jotted issue of the presentation of the methodological proposal on behalf of updating these publication texts for its potential readers.

  1. 2010 National Beneficiary Survey: Methodology and Descriptive Statistics.

    OpenAIRE

    Debra Wright; Gina Livermore; Denise Hoffman; Eric Grau; Maura Bardos

    2012-01-01

    This report presents the sampling design and data collection activities for round 4 (2010) of the Social Security Administration’s National Beneficiary Survey (NBS). It also provides descriptive statistics on working-age individuals receiving Supplemental Security Income and Social Security Disability Insurance benefits, based on the nationally representative sample from the 2010 NBS.

  2. Adaptation of the methodology of sample surveys for marketing researches

    Directory of Open Access Journals (Sweden)

    Kataev Andrey

    2015-08-01

    Full Text Available The article presents the results of the theory of adaptation of sample survey for the purposes of marketing, that allows to answer the fundamental question of any marketing research – how many objects should be studied for drawing adequate conclusions.

  3. Methodological issues in the validation of complex human-machine systems

    Energy Technology Data Exchange (ETDEWEB)

    O`Hara, J.; Stubler, W. [Brookhaven National Lab., Upton, NY (United States); Wachtel, J. [Nuclear Regulatory Commission, Washington, DC (United States). Office of Nuclear Regulatory Research

    1995-05-01

    Integrated system validation is one aspect of the US Nuclear Regulatory Commission`s design review process for human-system interfaces. This paper will consider three methodological issues that must be addressed in validation and their implications for drawing conclusions about the acceptability of the integrated system. They are: representing the integrated system, representing the operational events it must handle, and representing system performance. A logical basis for generalizability from validation tests to predicted performance of the integrated system emerges from the comparability of the psychological and physical processes of the test and actual situations. Generalizability of results is supported when the integrated system, operating conditions and performance are representative of their real-world counterparts. The methodological considerations for establishing representativeness are discussed.

  4. Qualitative response models: A survey of methodology and illustrative applications

    Directory of Open Access Journals (Sweden)

    Nojković Aleksandra

    2007-01-01

    Full Text Available This paper introduces econometric modeling with discrete (categorical dependent variables. Such models, commonly referred to as qualitative response (QR models, have become a standard tool of microeconometric analysis. Microeconometric research represents empirical analysis of microdata, i.e. economic information about individuals, households and firms. Microeconometrics has been most widely adopted in various fields, such as labour economics, consumer behavior, or economy of transport. The latest research shows that this methodology can also be successfully transferred to macroeconomic context and applied to time series and panel data analysis in a wider scope. .

  5. Endocrine function as a target of perinatal drug effects: methodologic issues.

    Science.gov (United States)

    Kuhn, C; Ignar, D; Windh, R

    1991-01-01

    The goal of this chapter is to indicate potential endocrine targets of perinatal drug exposure, to describe the methodologic issues involved in detecting changes in hormone secretion, and to provide examples of several endocrine systems in which exposure to drugs during development significantly impaired normal endocrine development. Finally, we attempted to show that endocrine function is both a target and useful marker for detecting effects of drug of abuse on development that provides the advantages of accurate quantitation and relative response stability across ontogeny.

  6. Methodological issues of assessing the effects of social inequality in Russia’s regions

    Directory of Open Access Journals (Sweden)

    Ol’ga Anatol’evna Kozlova

    2014-11-01

    Full Text Available The article deals with the issue concerning the assessment of the impact of social inequality on the socio-demographic characteristics of society. The authors evaluate the impact of the social inequality growth in the Russian Federation subjects on the basis of the analysis of the decile ratio dynamics. They propose a methodological approach to determine the degree of dependence of crime rate on the growth of social inequality. The authors compare the influence of the decile ratio and purchasing power on mortality rate in the regions of Russia

  7. Doing Sensitive Research Sensitively: Ethical and Methodological Issues in Researching Workplace Bullying

    Directory of Open Access Journals (Sweden)

    Declan Fahie PhD

    2014-02-01

    Full Text Available Complex ethical and methodological issues can sometimes arise when conducting research into sensitive topics. By employing an autobiographic approach to explore the personal dilemmas that arose for the author while undertaking doctoral research on workplace bullying in Irish education, this article highlights potential difficulties and tensions which may arise for researchers (particularly those at the beginning of their careers when conducting sensitive research. Specific attention is paid to the importance of protecting the researcher from harm, the exiting of the research relationship in an appropriate manner, and the necessity of anticipating potential problems before they become manifest.

  8. The use of social surveys in translation studies: methodological characteristics

    OpenAIRE

    Kuznik, Anna; Hurtado Albir, Amparo; Espinal Berenguer, Anna; Andrews, Mark

    2010-01-01

    Translation is an activity carried out by professionals – in some cases after a period of formal training – who are employed or self-employed, and whose work is destined for translation users. Translators, translator trainees, employers of translators, and translation users are four clearly defined social groups within the translation industry that may be the subject of study using one of the methods most frequently used within the field of social sciences: the social survey. This paper prese...

  9. A review of methodology and analysis of nutrition and mortality surveys conducted in humanitarian emergencies from October 1993 to April 2004

    Directory of Open Access Journals (Sweden)

    Spiegel Paul B

    2007-06-01

    Full Text Available Abstract Background Malnutrition prevalence and mortality rates are increasingly used as essential indicators to assess the severity of a crisis, to follow trends, and to guide decision-making, including allocation of funds. Although consensus has slowly developed on the methodology to accurately measure these indicators, errors in the application of the survey methodology and analysis have persisted. The aim of this study was to identify common methodological weaknesses in nutrition and mortality surveys and to provide practical recommendations for improvement. Methods Nutrition (N = 368 and crude mortality rate (CMR; N = 158 surveys conducted by 33 non-governmental organisations and United Nations agencies in 17 countries from October 1993 to April 2004 were analysed for sampling validity, precision, quality of measurement and calculation according to several criteria. Results One hundred and thirty (35.3% nutrition surveys and 5 (3.2% CMR surveys met the criteria for quality. Quality of surveys varied significantly depending on the agency. The proportion of nutrition surveys that met criteria for quality rose significantly from 1993 to 2004; there was no improvement for mortality surveys during this period. Conclusion Significant errors and imprecision in the methodology and reporting of nutrition and mortality surveys were identified. While there was an improvement in the quality of nutrition surveys over the years, the quality of mortality surveys remained poor. Recent initiatives aimed at standardising nutrition and mortality survey quality should be strengthened. There are still a number of methodological issues in nutrition and mortality surveys in humanitarian emergencies that need further study.

  10. Reducing Emissions from Deforestation in Developing Countries. A workshop to discuss methodological and policy issues

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-05-15

    COP-11 initiated a 2-year process to consider approaches to stimulate action for reducing emissions from deforestation in developing countries. As a first step, the COP invited Parties and accredited observers to submit, by 31 March 2006, their views 'on issues relating to reducing emissions from deforestation in developing countries, focusing on relevant scientific, technical and methodological issues, and the exchange of relevant information and experiences, including policy approaches and positive incentives'. SBSTA (Subsidiary Body for Scientific and Technological Advice) is expected to consider these submissions at SBSTA 24 in May 15-26, 2006 in Bonn, Germany, and subsequently hold a workshop on this issue later in 2006. The objective of this workshop is to provide a timely forum for an informal discussion and assessment of methodological and policy approaches for reducing emissions from deforestation. The workshop will base its discussions on the published literature, the 31 March submissions by governments and observer organizations, and inputs by workshop participants. The timing of the workshop has been selected to precede and provide input into the dialogue at SBSTA 24 and SBSTA workshop in late 2006. The workshop will encourage the learning and awareness of the issue and analyse the possible paths that negotiations may take in the future. The workshop organizers encourage participants to think 'outside the box' and will adopt the Chatham House Rule for the discussions on the first day and the Break Out Groups. Next to the Final Programme and Workshop Summaries several pdf-files of the presentations are available.

  11. Reviewing outcomes of psychological interventions with torture survivors: Conceptual, methodological and ethical Issues.

    Science.gov (United States)

    Patel, Nimisha; C de C Williams, Amanda; Kellezi, Blerina

    2016-01-01

    Torture survivors face multiple problems, including psychological difficulties, whether they are refugees or remain in the country where they were tortured. Provision of rehabilitation varies not only with the needs of survivors and resources available, but also with service models, service provider preferences and the local and country context. Despite increasing efforts in research on effectiveness of psychological interventions with torture survivors, results are inconclusive. We undertook a Cochrane systematic review of psychological, social and welfare provision, with meta-analysis to best estimate efficacy. The process raised conceptual, methodological and ethical issues of relevance to the wider field. We searched very widely, but rejected hundreds of papers which recommended treatment without providing evidence. We found nine randomised controlled trials, from developed and under-resourced settings. All conceptualised survivors' problems in psychiatric terms, using outcomes of post-traumatic stress symptoms, distress, and quality of life, by self-report, with or without translation or unstandardised interpretation, and with little mention of cultural or language issues. None used social or welfare interventions. Four related studies used narrative exposure therapy (NET) in a brief form, and without ensuring a safe setting as recommended. Five used mixed methods, including exposure, cognitive behavioural therapy, and eye movement desensitisation. Combined, the studies showed no immediate improvement in PTSD, distress, or quality of life; at six months follow-up, a minority showed some improvement in PTSD and distress, although participants remained severely affected. While applauding researchers' commitment in running these trials, we raise ethical issues about exposure in particular, and about the effects of shortcomings in methodology, particularly around assessment using unfamiliar cultural frameworks and language, and the lack of concern about dropout

  12. A methodological approach based on indirect sampling to survey the homeless people

    OpenAIRE

    Claudia De Vitiis; Stefano Falorsi; Francesca Inglese; Alessandra Masi; Nicoletta Pannuzi; Monica Russo

    2014-01-01

    The Italian National Institute of Statistics carried out the first survey on homeless population. The survey aims at estimating the unknown size and some demographic and social characteristics of this population. The methodological strategy used to investigate homeless population could not follow the standard approaches of official statistics usually based on the use of population lists. The sample strategy for the homeless survey refers to the theory of indirect sampling, based on the use of...

  13. Haemophilia Experiences, Results and Opportunities (HERO) Study: survey methodology and population demographics.

    Science.gov (United States)

    Forsyth, A L; Gregory, M; Nugent, D; Garrido, C; Pilgaard, T; Cooper, D L; Iorio, A

    2014-01-01

    Psychosocial factors have a significant impact on the quality of life of persons with haemophilia (PWH). The Haemophilia Experiences, Results and Opportunities (HERO) initiative was developed to provide a greater understanding of the psychological components which influence the lives of PWH. This article describes the HERO methodology and the characteristics of respondents. Two online surveys (one for adult PWH ≥18 years and one for parents of children surveys included demographic and treatment characteristics, relationships, sexual intimacy, quality of life, barriers to treatment and sources of information. A total of 675 PWH [age, median (range) 36 (18-86 years)] and 561 parents [39 (23-68 years)] completed the survey. PWH/parents reported haemophilia A (74%/76%), B (13%/16%) or with inhibitors (13%/8%). Spontaneous joint bleeding was reported in 76%/52% of PWH/children with haemophilia A, 67%/47% with haemophilia B and 93%/76% with inhibitors. Median number of bleeds (interquartile range) was 7 (2-20) for PWH and 4 (2-10) for children in the past year. Most PWH and children were treated with factor concentrate. PWH reported arthritis (49%) and HIV/HCV infections (18%/43%) related to haemophilia. Most PWH and parent respondents had received formal education (85%/89%) and were employed full- or part-time (60%/72%). HERO is one of the largest multinational studies focused on psychosocial issues in haemophilia, including historical and treatment information that will allow for multivariate analyses of determinants of health in haemophilia.

  14. INTERSECTIONS BETWEEN APPLIED LINGUISTICS AND LITERACY RESEARCH: EPISTEMOLOGICAL, THEORETICAL, AND METHODOLOGICAL ISSUES

    Directory of Open Access Journals (Sweden)

    Angela Kleiman

    2015-10-01

    Full Text Available The paper discusses three aspects in New Literacies Studies research in Brazil, as developed by researchers from an Applied Linguistics perspective. This perspective contributes to determine epistemological, theoretical, and methodological issues in literacy research, as well as ethical issues in regard to the relationships established with the groups who participate in the research. Taking examples from our research group, known as Teacher Literacy Research Group (created in 1991, we discuss transdisciplinary relationships built between Literacy and Dialogism as developed by Bakhtin and his Circle. Another intersecting point between Applied Linguistics and Literacy Research discussed in the paper is the relation between ethics and research in the two fields; a third one has to do with the methods adopted: as in several other studies in Applied Linguistics, in literacy studies, ethnography has been the preferred methodology. We conclude pointing out that an approach that conceives its object in a transdisciplinary manner and adopts ethical criteria as a research validation element favors the development of critical studies about writing in which the choice of problems and research contexts support the social goals of the investigated groups.

  15. Methodology for adding glycemic index to the National Health and Nutrition Examination Survey nutrient database.

    Science.gov (United States)

    Lin, Chii-Shy; Kimokoti, Ruth W; Brown, Lisa S; Kaye, Elizabeth A; Nunn, Martha E; Millen, Barbara E

    2012-11-01

    Generating valid estimates of dietary glycemic index (GI) and glycemic load (GL) has been a challenge in nutritional epidemiology. The methodologic issues may have contributed to the wide variation of GI/GL associations with health outcomes observed in existing literature. We describe a standardized methodology for assigning GI values to items in the National Health and Nutrition Examination Survey (NHANES) nutrient database using the new International Tables to develop research-driven, systematic procedures and strategies to estimate dietary GI/GL exposures of a nationally representative population sample. Nutrient databases for NHANES 2003-2006 contain information on 3,155 unique foods derived from the US Department of Agriculture National Nutrient Database for Standard Reference versions 18 and 20. Assignment of GI values were made to a subset of 2,078 carbohydrate-containing foods using systematic food item matching procedures applied to 2008 international GI tables and online data sources. Matching protocols indicated that 45.4% of foods had identical matches with existing data sources, 31.9% had similar matches, 2.5% derived GI values calculated with the formula for combination foods, 13.6% were assigned a default GI value based on low carbohydrate content, and 6.7% of GI values were based on data extrapolation. Most GI values were derived from international sources; 36.1% were from North American product information. To confirm data assignments, dietary GI and GL intakes of the NHANES 2003-2006 adult participants were estimated from two 24-hour recalls and compared with published studies. Among the 3,689 men and 4,112 women studied, mean dietary GI was 56.2 (men 56.9, women 55.5), mean dietary GL was 138.1 (men 162.1, women 116.4); the distribution of dietary GI was approximately normal. Estimates of population GI and GL compare favorably with other published literature. This methodology of adding GI values to an existing population nutrient database

  16. Issues in Learning About and Teaching Qualitative Research Methods and Methodology in the Social Sciences

    Directory of Open Access Journals (Sweden)

    Franz Breuer

    2007-01-01

    Full Text Available For many qualitative researchers in the social sciences, learning about and teaching qualitative research methods and methodology raises a number of questions. This topic was the focus of a symposium held during the Second Berlin Summer School for Qualitative Research Methods in July 2006. In this contribution, some of the issues discussed during the symposium are taken up and extended, and some basic dimensions underlying these issues are summarized. How qualitative research methods and methodology are taught is closely linked to the ways in which qualitative researchers in the social sciences conceptualize themselves and their discipline. In the following, we distinguish between a paradigmatic and a pragmatic view. From a pragmatic point of view, qualitative research methods are considered research strategies or techniques and can be taught in the sense of recipes with specific steps to be carried out. According to a paradigmatic point of view (strongly inspired by constructivism, qualitative research methods and methodology are conceptualized as a craft to be practiced together by a "master" and an "apprentice." Moreover, the teaching of qualitative research methods also depends heavily on the institutional standing of qualitative compared to quantitative research method. Based on these considerations, five basic dimensions of learning about and teaching qualitative research methods are suggested: ways of teaching (ranging from the presentation of textbook knowledge to cognitive apprenticeship and instructors' experience with these; institutional contexts, including their development and the teaching of qualitative research methods in other than university contexts; the "fit" between personality and method, including relevant personal skills and talents; and, as a special type of instructional context that increasingly has gained importance, distance learning and its implications for learning about and teaching qualitative research methods

  17. A Survey on Security Issues in Cloud Computing

    CERN Document Server

    Bhadauria, Rohit; Chaki, Nabendu; Sanyal, Sugata

    2011-01-01

    Cloud Computing holds the potential to eliminate the requirements for setting up of high-cost computing infrastructure for the IT-based solutions and services that the industry uses. It promises to provide a flexible IT architecture, accessible through internet for lightweight portable devices. This would allow many-fold increase in the capacity or capabilities of the existing and new software. In a cloud computing environment, the entire data reside over a set of networked resources, enabling the data to be accessed through virtual machines. Since these data centers may lie in any corner of the world beyond the reach and control of users, there are multifarious security and privacy challenges that need to be understood and taken care of. Also, one can never deny the possibility of a server breakdown that has been witnessed, rather quite often in the recent times. There are various issues that need to be dealt with respect to security and privacy in a cloud computing scenario. This extensive survey paper aims...

  18. Chinese college students’ understanding of Internet ethical issues: A survey of awareness

    Institute of Scientific and Technical Information of China (English)

    Yuelin; LI; Ying; LI; Ang; LI

    2014-01-01

    Purpose: This study examines Chinese college students’ awareness of ethical issues surrounding the use of information resources and the Internet and their attitude to these issues. Design/methodology/approach: A survey was conducted. Two hundred questionnaires were distributed to students of 9 universities at different levels in Tianjin, China; 171 were returned. Descriptive statistics were performed to analyze the data. Findings: The results indicate that Chinese college students usually ignored the negative influence of fake or pornographic or other indecent information, invasion of privacy and theft of confidential information, and violation of intellectual property rights. Although they could distinguish to some extent between ethical and unethical behavior, they were not concerned about others’ unethical behavior on the Web. The study also indicates that gender, age, academic major and expertise in using computers were related to the students’ awareness of ethical issues relating to the use of the Internet and their attitude to these issues.Research limitations: The sample is limited to the universities in Tianjin. A larger sample, which includes colleges and universities in the western or other developing areas in China, is needed to further validate our findings.Practical implications: The study helps educators and academic librarians better understand Chinese college students’ awareness of and attitude to ethical issues surrounding the use of the Internet. It thus could assist them in the improvement of information ethics education for college students.Originality/value: This study was one of the first empirical studies to investigate the factors influencing Chinese college students’ awareness of and attitude to Internet ethical issues.

  19. Soft System Methodology as a Tool to Understand Issues of Governmental Affordable Housing Programme of India: A Case Study Approach

    Science.gov (United States)

    Ghosh, Sukanya; Roy, Souvanic; Sanyal, Manas Kumar

    2016-09-01

    With the help of a case study, the article has explored current practices of implementation of governmental affordable housing programme for urban poor in a slum of India. This work shows that the issues associated with the problems of governmental affordable housing programme has to be addressed to with a suitable methodology as complexities are not only dealing with quantitative data but qualitative data also. The Hard System Methodologies (HSM), which is conventionally applied to address the issues, deals with real and known problems which can be directly solved. Since most of the issues of affordable housing programme as found in the case study are subjective and complex in nature, Soft System Methodology (SSM) has been tried for better representation from subjective points of views. The article explored drawing of Rich Picture as an SSM approach for better understanding and analysing complex issues and constraints of affordable housing programme so that further exploration of the issues is possible.

  20. Literature Survey of previous research work in Models and Methodologies in Project Management

    OpenAIRE

    Ravinder Singh; Dr. Kevin Lano

    2014-01-01

    This paper provides a survey of the existing literature and research carried out in the area of project management using different models, methodologies, and frameworks. Project Management (PM) broadly means programme management, portfolio management, practice management, project management office, etc. A project management system has a set of processes, procedures, framework, methods, tools, methodologies, techniques, resources, etc. which are used to manage the full life cycle of projects. ...

  1. Calculation of the electrostatic potential of lipid bilayers from molecular dynamics simulations: methodological issues

    DEFF Research Database (Denmark)

    Gurtovenko, Andrey A; Vattulainen, Ilpo

    2009-01-01

    that it is employed in conjunction with tin-foil boundary conditions, which exactly balance a nonzero surface charge of a periodically replicated multibilayer system. Furthermore, we show that vacuum boundary conditions give qualitatively similar potential profiles for asymmetric lipid bilayers as compared......The electrostatic properties of lipid membranes are of profound importance as they are directly associated with membrane potential and, consequently, with numerous membrane-mediated biological phenomena. Here we address a number of methodological issues related to the computation...... of the electrostatic potential from atomic-scale molecular dynamics simulations of lipid bilayers. We discuss two slightly different forms of Poisson equation that are normally used to calculate the membrane potential: (i) a classical form when the potential and the electric field are chosen to be zero on one...

  2. [Methodological issues in the measurement of alcohol consumption: the importance of drinking patterns].

    Science.gov (United States)

    Valencia Martín, José L; González, M José; Galán, Iñaki

    2014-08-01

    Measurement of alcohol consumption is essential for proper investigation of its effects on health. However, its estimation is extremely complex, because of the diversity of forms of alcohol consumption and their highly heterogeneous classification. Moreover, each form may have different effects on health; therefore, not considering the most important drinking patterns when estimating alcohol intake could mask the important role of consumption patterns in these effects. All these issues make it very difficult to compare the results of different studies and to establish consistent associations for understanding the true effects of alcohol consumption, both overall and specific to each drinking pattern. This article reviews the main methods and sources of information available in Spain for estimating the most important aspects of alcohol consumption, as well as the most frequent methodological problems encountered in the measurement and classification of drinking patterns.

  3. Is Empirical Research on Periodization Trustworthy? A Comprehensive Review of Conceptual and Methodological Issues

    Science.gov (United States)

    Afonso, José; Nikolaidis, Pantelis T.; Sousa, Patrícia; Mesquita, Isabel

    2017-01-01

    Periodization is a core concept in training. Recently, systematic reviews and meta-analyses have attempted to provide a comprehensive overview of the topic, but theoretical criticisms have arisen with regard to how such research has been conducted. The purpose of the study was to review comprehensively the conceptual and methodological issues surrounding empirical research on periodization in training with human subjects. A search was conducted late in February 2016 on Academic Search Complete, CINAHL Plus, MedicLatina, MEDLINE, PsycINFO, PubMed, Scielo, Scopus, SPORTDiscus and Web of Science. Forty-two randomized or randomized controlled trials were retrieved. Problems emerged in three domains: (a) Conceptually, periodization and variation were applied differently in research, while no empirical research tested predictions concerning direction, timing or magnitude of the adaptations; (b) Study design: More than 95% of papers investigated the ‘physical’ factor (mainly strength). Research on long-term effects was absent (no study lasted more than nine months). Controlling for confounding factors such as nutrition, supplementation and medication was largely ignored; (c) Data analysis was biased as dispersion in responsiveness was ignored when discussing the findings. Overall, research on periodization fails to analyze the conceptual premises proposed by these approaches. Key points Periodization is considered a core concept of training. However, conceptual and methodological critiques have arisen. We therefore comprehensively reviewed randomized and randomized trials applying periodized protocols to human subjects. Overall, the concepts of periodization and variation are being used interchangeably, which represents an intellectual mistake with implications for how we interpret the results of the studies. Additional methodological shortcomings make current research on periodization largely unreliable. PMID:28344448

  4. Animal Models of Virus-Induced Neurobehavioral Sequelae: Recent Advances, Methodological Issues, and Future Prospects

    Directory of Open Access Journals (Sweden)

    Marco Bortolato

    2010-01-01

    Full Text Available Converging lines of clinical and epidemiological evidence suggest that viral infections in early developmental stages may be a causal factor in neuropsychiatric disorders such as schizophrenia, bipolar disorder, and autism-spectrum disorders. This etiological link, however, remains controversial in view of the lack of consistent and reproducible associations between viruses and mental illness. Animal models of virus-induced neurobehavioral disturbances afford powerful tools to test etiological hypotheses and explore pathophysiological mechanisms. Prenatal or neonatal inoculations of neurotropic agents (such as herpes-, influenza-, and retroviruses in rodents result in a broad spectrum of long-term alterations reminiscent of psychiatric abnormalities. Nevertheless, the complexity of these sequelae often poses methodological and interpretational challenges and thwarts their characterization. The recent conceptual advancements in psychiatric nosology and behavioral science may help determine new heuristic criteria to enhance the translational value of these models. A particularly critical issue is the identification of intermediate phenotypes, defined as quantifiable factors representing single neurochemical, neuropsychological, or neuroanatomical aspects of a diagnostic category. In this paper, we examine how the employment of these novel concepts may lead to new methodological refinements in the study of virus-induced neurobehavioral sequelae through animal models.

  5. High-level methodologies for grammar engineering, introduction to the special issue

    Directory of Open Access Journals (Sweden)

    Denys Duchier

    2015-06-01

    Full Text Available Grammar Engineering is the task of designing and implementing linguistically motivated electronic descriptions of natural language (so-called grammars. These grammars are expressed within well-defined theoretical frameworks, and offer a fine-grained description of natural language. While grammars were first used to describe syntax, that is to say, the relations between constituents in a sentence, they often go beyond syntax and include semantic information. Grammar engineering provides precise descriptions which can be used for natural language understanding and generation, making these valuable resources for various natural language applications, including textual entailment, dialogue systems, or machine translation. The first attempts at designing large-scale resource grammars were costly because of the complexity of the task (Erbach et al. 1990 and of the number of persons that were needed (see e.g. Doran et al. 1997. Advances in the field have led to the development of environments for semi-automatic grammar engineering, borrowing ideas from compilation (grammar engineering is compared with software development and machine learning. This special issue reports on new trends in the field, where grammar engineering benefits from elaborate high-level methodologies and techniques, dealing with various issues (both theoretical and practical.

  6. Methodological and ethical issues in research using social media: a metamethod of Human Papillomavirus vaccine studies.

    Science.gov (United States)

    Gustafson, Diana L; Woodworth, Claire F

    2014-12-02

    Online content is a primary source of healthcare information for internet-using adults and a rich resource for health researchers. This paper explores the methodological and ethical issues of engaging in health research using social media. A metamethod was performed on systematically selected studies that used social media as a data source for exploring public awareness and beliefs about Human Papillomaviruses (HPV) and HPV vaccination. Seven electronic databases were searched using a variety of search terms identified for each of three concepts: social media, HPV vaccine, and research method. Abstracts were assessed for eligibility of inclusion; six studies met the eligibility criteria and were subjected to content analysis. A 10-item coding scheme was developed to assess the clarity, congruence and transparency of research design, epistemological and methodological underpinnings and ethical considerations. The designs of the six selected studies were sound, although most studies could have been more transparent about how they built in rigor to ensure the trustworthiness and credibility of findings. Statistical analysis that intended to measure trends and patterns did so without the benefit of randomized sampling and other design elements for ensuring generalizability or reproducibility of findings beyond the specified virtual community. Most researchers did not sufficiently engage virtual users in the research process or consider the risk of privacy incursion. Most studies did not seek ethical approval from an institutional research board or permission from host websites or web service providers. The metamethod exposed missed opportunities for using the dialogical character of social media as well as a lack of attention to the unique ethical issues inherent in operating in a virtual community where social boundaries and issues of public and private are ambiguous. This suggests the need for more self-conscious and ethical research practices when using social media

  7. 2015 Workplace and Gender Relations Survey of Reserve Component Members: Statistical Methodology Report

    Science.gov (United States)

    2016-03-17

    Component Members (2015 WGRR). Mr. Tim Markham, mathematical statistician within the Statistical Methods Branch, used the DMDC Sampling Tool to...and the relationship (covariance) between response propensities and the estimated statistics (i.e., sexual assault rate), and takes the following...2015 Workplace and Gender Relations Survey of Reserve Component Members Statistical Methodology Report Additional copies of this report

  8. Exploring Ethical Issues Associated with Using Online Surveys in Educational Research

    Science.gov (United States)

    Roberts, Lynne D.; Allen, Peter J.

    2015-01-01

    Online surveys are increasingly used in educational research, yet little attention has focused on ethical issues associated with their use in educational settings. Here, we draw on the broader literature to discuss 5 key ethical issues in the context of educational survey research: dual teacher/researcher roles; informed consent; use of…

  9. Exploring Ethical Issues Associated with Using Online Surveys in Educational Research

    Science.gov (United States)

    Roberts, Lynne D.; Allen, Peter J.

    2015-01-01

    Online surveys are increasingly used in educational research, yet little attention has focused on ethical issues associated with their use in educational settings. Here, we draw on the broader literature to discuss 5 key ethical issues in the context of educational survey research: dual teacher/researcher roles; informed consent; use of…

  10. The National Aviation Operational Monitoring Service (NAOMS): A Documentation of the Development of a Survey Methodology

    Science.gov (United States)

    Connors, Mary M.; Mauro, Robert; Statler, Irving C.

    2012-01-01

    The National Aviation Operational Monitoring Service (NAOMS) was a research project under NASA s Aviation Safety Program during the years from 2000 to 2005. The purpose of this project was to develop a methodology for gaining reliable information on changes over time in the rates-of-occurrence of safety-related events as a means of assessing the safety of the national airspace. The approach was a scientifically designed survey of the operators of the aviation system concerning their safety-related experiences. This report presents the results of the methodology developed and a demonstration of the NAOMS concept through a survey of nearly 20,000 randomly selected air-carrier pilots. Results give evidence that the NAOMS methodology can provide a statistically sound basis for evaluating trends of incidents that could compromise safety. The approach and results are summarized in the report and supporting documentation and complete analyses of results are presented in 14 appendices.

  11. Improving quality in population surveys of headache prevalence, burden and cost: key methodological considerations.

    Science.gov (United States)

    Steiner, Timothy J; Stovner, Lars Jacob; Al Jumah, Mohammed; Birbeck, Gretchen L; Gururaj, Gopalakrishna; Jensen, Rigmor; Katsarava, Zaza; Queiroz, Luiz Paulo; Scher, Ann I; Tekle-Haimanot, Redda; Wang, Shuu-Jiun; Martelletti, Paolo; Dua, Tarun; Chatterji, Somnath

    2013-01-01

    Population-based studies of headache disorders are important. They inform needs assessment and underpin service policy for a set of disorders that are a public-health priority. On the one hand, our knowledge of the global burden of headache is incomplete, with major geographical gaps; on the other, methodological differences and variable quality are notable among published studies of headache prevalence, burden and cost. The purpose here was to start the process of developing standardized and better methodology in these studies. An expert consensus group was assembled to identify the key methodological issues, and areas where studies might fail. Members had competence and practical experience in headache epidemiology or epidemiology in general, and were drawn from all WHO world regions. We reviewed the relevant literature, and supplemented the knowledge gathered from this exercise with experience gained from recent Global Campaign population-based studies, not all yet published. We extracted methodological themes and identified issues within them that were of key importance. We found wide variations in methodology. The themes within which methodological shortcomings had adverse impact on quality were the following: study design; selection and/or definition of population of interest; sampling and bias avoidance; sample size estimation; access to selected subjects (managing and reporting non-participation); case definition (including diagnosis and timeframe); case ascertainment (including diagnostic validation of questionnaires); burden estimation; reporting (methods and results). These are discussed.

  12. Surveying clinicians by web: current issues in design and administration.

    Science.gov (United States)

    Dykema, Jennifer; Jones, Nathan R; Piché, Tara; Stevenson, John

    2013-09-01

    The versatility, speed, and reduced costs with which web surveys can be conducted with clinicians are often offset by low response rates. Drawing on best practices and general recommendations in the literature, we provide an evidence-based overview of methods for conducting online surveys with providers. We highlight important advantages and disadvantages of conducting provider surveys online and include a review of differences in response rates between web and mail surveys of clinicians. When administered online, design-based features affect rates of survey participation and data quality. We examine features likely to have an impact including sample frames, incentives, contacts (type, timing, and content), mixed-mode approaches, and questionnaire length. We make several recommendations regarding optimal web-based designs, but more empirical research is needed, particularly with regard to identifying which combinations of incentive and contact approaches yield the highest response rates and are the most cost-effective.

  13. Musculoskeletal impairment survey in Rwanda: Design of survey tool, survey methodology, and results of the pilot study (a cross sectional survey

    Directory of Open Access Journals (Sweden)

    Simms Victoria

    2007-03-01

    Full Text Available Abstract Background Musculoskeletal impairment (MSI is an important cause of morbidity and mortality worldwide, especially in developing countries. Prevalence studies for MSI in the developing world have used varying methodologies and are seldom directly comparable. This study aimed to develop a new tool to screen for and diagnose MSI and to pilot test the methodology for a national survey in Rwanda. Methods A 7 question screening tool to identify cases of MSI was developed through literature review and discussions with healthcare professionals. To validate the tool, trained rehabilitation technicians screened 93 previously identified gold standard 'cases' and 86 'non cases'. Sensitivity, specificity and positive predictive value were calculated. A standardised examination protocol was developed to determine the aetiology and diagnosis of MSI for those who fail the screening test. For the national survey in Rwanda, multistage cluster random sampling, with probability proportional to size procedures will be used for selection of a cross-sectional, nationally representative sample of the population. Households to be surveyed will be chosen through compact segment sampling and all individuals within chosen households will be screened. A pilot survey of 680 individuals was conducted using the protocol. Results: The screening tool demonstrated 99% sensitivity and 97% specificity for MSI, and a positive predictive value of 98%. During the pilot study 468 out of 680 eligible subjects (69% were screened. 45 diagnoses were identified in 38 persons who were cases of MSI. The subjects were grouped into categories based on diagnostic subgroups of congenital (1, traumatic (17, infective (2 neurological (6 and other acquired(19. They were also separated into mild (42.1%, moderate (42.1% and severe (15.8% cases, using an operational definition derived from the World Health Organisation's International Classification of Functioning, Disability and Health

  14. Was Feyerabend a Popperian? Methodological issues in the History of the Philosophy of Science.

    Science.gov (United States)

    Collodel, Matteo

    2016-06-01

    For more than three decades, there has been significant debate about the relation between Feyerabend and Popper. The discussion has been nurtured and complicated by the rift that opened up between the two and by the later Feyerabend's controversial portrayal of his earlier self. The first part of the paper provides an overview of the accounts of the relation that have been proposed over the years, disentangles the problems they deal with, and analyses the evidence supporting their conclusions as well as the methodological approaches used to process that evidence. Rather than advancing a further speculative account of the relation based on Feyerabend's philosophical work or autobiographical recollections, the second part of the paper strives to clarify the problems at issue by making use of a wider range of evidence. It outlines a historical reconstruction of the social context within which Feyerabend's intellectual trajectory developed, putting a special emphasis on the interplay between the perceived intellectual identity of Feyerabend, Feyerabend's own intellectual self-concept, and the peculiar features of the evolving Popperian research group. Copyright © 2015 Elsevier Ltd. All rights reserved.

  15. Cobenefits of replacing car trips with alternative transportation: a review of evidence and methodological issues.

    Science.gov (United States)

    Xia, Ting; Zhang, Ying; Crabb, Shona; Shah, Pushan

    2013-01-01

    It has been reported that motor vehicle emissions contribute nearly a quarter of world energy-related greenhouse gases and cause nonnegligible air pollution primarily in urban areas. Reducing car use and increasing ecofriendly alternative transport, such as public and active transport, are efficient approaches to mitigate harmful environmental impacts caused by a large amount of vehicle use. Besides the environmental benefits of promoting alternative transport, it can also induce other health and economic benefits. At present, a number of studies have been conducted to evaluate cobenefits from greenhouse gas mitigation policies. However, relatively few have focused specifically on the transport sector. A comprehensive understanding of the multiple benefits of alternative transport could assist with policy making in the areas of transport, health, and environment. However, there is no straightforward method which could estimate cobenefits effect at one time. In this paper, the links between vehicle emissions and air quality, as well as the health and economic benefits from alternative transport use, are considered, and methodological issues relating to the modelling of these cobenefits are discussed.

  16. Cobenefits of Replacing Car Trips with Alternative Transportation: A Review of Evidence and Methodological Issues

    Directory of Open Access Journals (Sweden)

    Ting Xia

    2013-01-01

    Full Text Available It has been reported that motor vehicle emissions contribute nearly a quarter of world energy-related greenhouse gases and cause nonnegligible air pollution primarily in urban areas. Reducing car use and increasing ecofriendly alternative transport, such as public and active transport, are efficient approaches to mitigate harmful environmental impacts caused by a large amount of vehicle use. Besides the environmental benefits of promoting alternative transport, it can also induce other health and economic benefits. At present, a number of studies have been conducted to evaluate cobenefits from greenhouse gas mitigation policies. However, relatively few have focused specifically on the transport sector. A comprehensive understanding of the multiple benefits of alternative transport could assist with policy making in the areas of transport, health, and environment. However, there is no straightforward method which could estimate cobenefits effect at one time. In this paper, the links between vehicle emissions and air quality, as well as the health and economic benefits from alternative transport use, are considered, and methodological issues relating to the modelling of these cobenefits are discussed.

  17. Cobenefits of Replacing Car Trips with Alternative Transportation: A Review of Evidence and Methodological Issues

    Science.gov (United States)

    Zhang, Ying; Crabb, Shona

    2013-01-01

    It has been reported that motor vehicle emissions contribute nearly a quarter of world energy-related greenhouse gases and cause nonnegligible air pollution primarily in urban areas. Reducing car use and increasing ecofriendly alternative transport, such as public and active transport, are efficient approaches to mitigate harmful environmental impacts caused by a large amount of vehicle use. Besides the environmental benefits of promoting alternative transport, it can also induce other health and economic benefits. At present, a number of studies have been conducted to evaluate cobenefits from greenhouse gas mitigation policies. However, relatively few have focused specifically on the transport sector. A comprehensive understanding of the multiple benefits of alternative transport could assist with policy making in the areas of transport, health, and environment. However, there is no straightforward method which could estimate cobenefits effect at one time. In this paper, the links between vehicle emissions and air quality, as well as the health and economic benefits from alternative transport use, are considered, and methodological issues relating to the modelling of these cobenefits are discussed. PMID:23956758

  18. Is Empirical Research on Periodization Trustworthy? A Comprehensive Review of Conceptual and Methodological Issues

    Directory of Open Access Journals (Sweden)

    José Afonso, Pantelis T. Nikolaidis, Patrícia Sousa, Isabel Mesquita

    2017-03-01

    Full Text Available Periodization is a core concept in training. Recently, systematic reviews and meta-analyses have attempted to provide a comprehensive overview of the topic, but theoretical criticisms have arisen with regard to how such research has been conducted. The purpose of the study was to review comprehensively the conceptual and methodological issues surrounding empirical research on periodization in training with human subjects. A search was conducted late in February 2016 on Academic Search Complete, CINAHL Plus, MedicLatina, MEDLINE, PsycINFO, PubMed, Scielo, Scopus, SPORTDiscus and Web of Science. Forty-two randomized or randomized controlled trials were retrieved. Problems emerged in three domains: (a Conceptually, periodization and variation were applied differently in research, while no empirical research tested predictions concerning direction, timing or magnitude of the adaptations; (b Study design: More than 95% of papers investigated the ‘physical’ factor (mainly strength. Research on long-term effects was absent (no study lasted more than nine months. Controlling for confounding factors such as nutrition, supplementation and medication was largely ignored; (c Data analysis was biased as dispersion in responsiveness was ignored when discussing the findings. Overall, research on periodization fails to analyze the conceptual premises proposed by these approaches.

  19. Methodological and conceptual issues regarding occupational psychosocial coronary heart disease epidemiology.

    Science.gov (United States)

    Burr, Hermann; Formazin, Maren; Pohrt, Anne

    2016-05-01

    Overview Psychosocial occupational epidemiology has mainly focused on the demand-control and, to a much lesser extent, the effort-reward-imbalance (ERI) models. These models and the strong focus on them raise some conceptual and methodological issues we will address in the following letter. The conceptual issues include the empirical confirmation of the assumptions of these models, the extent to which the focus on the demand-control and ERI models is warranted, and whether the sub-dimensions of the scales in these models have common health effects. We argue that there is a lack of empirical approval of (i) the assumptions behind both models and (ii) the focus on these models. The methodological issues include how exposure to job strain is categorized, how ERI previously has been measured, and the validity of self-reports of job strain. We argue that (i) a population independent definition of job strain is lacking, (ii) the older measurements of ERI mix exposure and effect, and (iii) we know little regarding the validity of the measurement of the psychosocial working environment. Finally, we suggest that analyses of monitoring data with a broader focus on the psychosocial working environment can be used to shed light to some of the issues raised above. Introduction In the last three decades (1, 2), psychosocial occupational epidemiology related to coronary heart disease (CHD) has mainly focused on the job-strain model, also referred to as the demand-control model (3, 4). In this model, two aspects of work are deemed relevant: demands and control. Negative consequences to health are to be expected when high demands are simultaneously present with low control. This combination has been termed job strain (3, 4). Recently, there has also been increased interest in the ERI model (5, 6) which considers the level of effort relative to rewards at work: an imbalance is present when the efforts outweigh the rewards (5, 6). In longitudinal studies of CHD, there has been only a

  20. Strategic environmental noise mapping: methodological issues concerning the implementation of the EU Environmental Noise Directive and their policy implications.

    LENUS (Irish Health Repository)

    Murphy, E

    2010-04-01

    This paper explores methodological issues and policy implications concerning the implementation of the EU Environmental Noise Directive (END) across Member States. Methodologically, the paper focuses on two key thematic issues relevant to the Directive: (1) calculation methods and (2) mapping methods. For (1), the paper focuses, in particular, on how differing calculation methods influence noise prediction results as well as the value of the EU noise indicator L(den) and its associated implications for comparability of noise data across EU states. With regard to (2), emphasis is placed on identifying the issues affecting strategic noise mapping, estimating population exposure, noise action planning and dissemination of noise mapping results to the general public. The implication of these issues for future environmental noise policy is also examined.

  1. Strategic environmental noise mapping: methodological issues concerning the implementation of the EU Environmental Noise Directive and their policy implications.

    Science.gov (United States)

    Murphy, E; King, E A

    2010-04-01

    This paper explores methodological issues and policy implications concerning the implementation of the EU Environmental Noise Directive (END) across Member States. Methodologically, the paper focuses on two key thematic issues relevant to the Directive: (1) calculation methods and (2) mapping methods. For (1), the paper focuses, in particular, on how differing calculation methods influence noise prediction results as well as the value of the EU noise indicator L(den) and its associated implications for comparability of noise data across EU states. With regard to (2), emphasis is placed on identifying the issues affecting strategic noise mapping, estimating population exposure, noise action planning and dissemination of noise mapping results to the general public. The implication of these issues for future environmental noise policy is also examined. Copyright (c) 2009 Elsevier Ltd. All rights reserved.

  2. Literature Survey of previous research work in Models and Methodologies in Project Management

    Directory of Open Access Journals (Sweden)

    Ravinder Singh

    2014-09-01

    Full Text Available This paper provides a survey of the existing literature and research carried out in the area of project management using different models, methodologies, and frameworks. Project Management (PM broadly means programme management, portfolio management, practice management, project management office, etc. A project management system has a set of processes, procedures, framework, methods, tools, methodologies, techniques, resources, etc. which are used to manage the full life cycle of projects. This also means to create risk, quality, performance, and other management plans to monitor and manage the projects efficiently and effectively.

  3. Development of a methodology for selecting office building upgrading solutions based on a test survey in European buildings

    Energy Technology Data Exchange (ETDEWEB)

    Wittchen, K.B.; Brandt, E. [Danish Building and Urban Research, Horsholm (Denmark)

    2001-07-01

    The potential for using the TOBUS methodology to select office building upgrading solutions have been investigated during field tests in 15 European office buildings in 5 European countries. The 15 office buildings represent a variety of building traditions, architectural designs, construction periods and energy and indoor performance. The buildings were audited following the TOBUS methodology developed within the project. The results of the test surveys were primarily used to improve the TOBUS methodology and secondly to suggest general upgrading solutions and energy retrofit measures for the surveyed buildings. This paper describes the development of the TOBUS methodology based on the 15 test surveys. (author)

  4. Strategic Issues in Quality Management: 2. Survey Analysis.

    Science.gov (United States)

    Johanssen, Carl Gustav

    1996-01-01

    Examines how and to what extent business-oriented libraries and information centers in the Nordic countries have implemented strategic quality management (SQM), drawing from theoretical considerations in an earlier article. An operational assessment model is proposed and empirical findings from a survey of business information services are…

  5. Online Cultural Heritage Exhibitions: A Survey of Strategic Issues

    Science.gov (United States)

    Liew, Chern Li

    2006-01-01

    Purpose: This paper seeks to report findings from a study that looked at a range of strategic issues faced in the development, management and maintenance of online cultural heritage exhibitions. The study examined exhibitions from different types of cultural agencies and asked questions about whether, for instance, the exhibitions are part of the…

  6. Methodological issues associated with collecting sensitive information over the telephone - experience from an Australian non-suicidal self-injury (NSSI) prevalence study

    Science.gov (United States)

    2011-01-01

    Background Collecting population data on sensitive issues such as non-suicidal self-injury (NSSI) is problematic. Case note audits or hospital/clinic based presentations only record severe cases and do not distinguish between suicidal and non-suicidal intent. Community surveys have largely been limited to school and university students, resulting in little much needed population-based data on NSSI. Collecting these data via a large scale population survey presents challenges to survey methodologists. This paper addresses the methodological issues associated with collecting this type of data via CATI. Methods An Australia-wide population survey was funded by the Australian Government to determine prevalence estimates of NSSI and associations, predictors, relationships to suicide attempts and suicide ideation, and outcomes. Computer assisted telephone interviewing (CATI) on a random sample of the Australian population aged 10+ years of age from randomly selected households, was undertaken. Results Overall, from 31,216 eligible households, 12,006 interviews were undertaken (response rate 38.5%). The 4-week prevalence of NSSI was 1.1% (95% ci 0.9-1.3%) and lifetime prevalence was 8.1% (95% ci 7.6-8.6). Methodological concerns and challenges in regard to collection of these data included extensive interviewer training and post interview counselling. Ethical considerations, especially with children as young as 10 years of age being asked sensitive questions, were addressed prior to data collection. The solution required a large amount of information to be sent to each selected household prior to the telephone interview which contributed to a lower than expected response rate. Non-coverage error caused by the population of interest being highly mobile, homeless or institutionalised was also a suspected issue in this low prevalence condition. In many circumstances the numbers missing from the sampling frame are small enough to not cause worry, especially when compared with

  7. Methodological issues associated with collecting sensitive information over the telephone - experience from an Australian non-suicidal self-injury (NSSI prevalence study

    Directory of Open Access Journals (Sweden)

    Fullerton Simon

    2011-02-01

    Full Text Available Abstract Background Collecting population data on sensitive issues such as non-suicidal self-injury (NSSI is problematic. Case note audits or hospital/clinic based presentations only record severe cases and do not distinguish between suicidal and non-suicidal intent. Community surveys have largely been limited to school and university students, resulting in little much needed population-based data on NSSI. Collecting these data via a large scale population survey presents challenges to survey methodologists. This paper addresses the methodological issues associated with collecting this type of data via CATI. Methods An Australia-wide population survey was funded by the Australian Government to determine prevalence estimates of NSSI and associations, predictors, relationships to suicide attempts and suicide ideation, and outcomes. Computer assisted telephone interviewing (CATI on a random sample of the Australian population aged 10+ years of age from randomly selected households, was undertaken. Results Overall, from 31,216 eligible households, 12,006 interviews were undertaken (response rate 38.5%. The 4-week prevalence of NSSI was 1.1% (95% ci 0.9-1.3% and lifetime prevalence was 8.1% (95% ci 7.6-8.6. Methodological concerns and challenges in regard to collection of these data included extensive interviewer training and post interview counselling. Ethical considerations, especially with children as young as 10 years of age being asked sensitive questions, were addressed prior to data collection. The solution required a large amount of information to be sent to each selected household prior to the telephone interview which contributed to a lower than expected response rate. Non-coverage error caused by the population of interest being highly mobile, homeless or institutionalised was also a suspected issue in this low prevalence condition. In many circumstances the numbers missing from the sampling frame are small enough to not cause worry

  8. SURVEY OF ABANDONED INDUSTRIAL SITES IN THE PROVINCE OF CARINTHIA/AUSTRIA - METHODOLOGY AND RESULTS

    Directory of Open Access Journals (Sweden)

    WOLFGANG FISCHER

    2008-12-01

    Full Text Available The paper in hand mainly addresses the issue of abandoned industrial and commercial sites. The results of a survey form the central content and regards the method of investigation of this survey of abandoned sites in the province of Carinthia, including experiences and recommendations. The survey started with a number of more than 10,000 businesses. After the different steps of the survey (research phase, exploration phase, clarification phase and evaluation phase 444 sites had to be attributed an increased potential for danger. After these steps followed an evaluation which concerned the priority in regard to the securing and/ or remediation of the abandoned sites. On the basis of certain gathered values, future surveys of abandoned industrial and commercial sites can be calculated fairly exactly.

  9. The Issues and Methodologies in Sustainability Assessment Tools for Higher Education Institutions: A Review of Recent Trends and Future Challenges

    Science.gov (United States)

    Yarime, Masaru; Tanaka, Yuko

    2012-01-01

    Assessment tools influence incentives to higher education institutions by encouraging them to move towards sustainability. A review of 16 sustainability assessment tools was conducted to examine the recent trends in the issues and methodologies addressed in assessment tools quantitatively and qualitatively. The characteristics of the current…

  10. The Issues and Methodologies in Sustainability Assessment Tools for Higher Education Institutions: A Review of Recent Trends and Future Challenges

    Science.gov (United States)

    Yarime, Masaru; Tanaka, Yuko

    2012-01-01

    Assessment tools influence incentives to higher education institutions by encouraging them to move towards sustainability. A review of 16 sustainability assessment tools was conducted to examine the recent trends in the issues and methodologies addressed in assessment tools quantitatively and qualitatively. The characteristics of the current…

  11. Checklists of Methodological Issues for Review Authors to Consider When Including Non-Randomized Studies in Systematic Reviews

    Science.gov (United States)

    Wells, George A.; Shea, Beverley; Higgins, Julian P. T.; Sterne, Jonathan; Tugwell, Peter; Reeves, Barnaby C.

    2013-01-01

    Background: There is increasing interest from review authors about including non-randomized studies (NRS) in their systematic reviews of health care interventions. This series from the Ottawa Non-Randomized Studies Workshop consists of six papers identifying methodological issues when doing this. Aim: To format the guidance from the preceding…

  12. Methodology for conduct of epidemiologic surveys and randomized controlled trials of diabetic polyneuropathy.

    Science.gov (United States)

    Dyck, Peter James

    2014-01-01

    This chapter outlines: (1) the reasons why epidemiologic surveys and randomized controlled clinical trials (RCTs) of diabetic polyneuropathy (DPN) are difficult and expensive, and often poorly done, (2) primary and secondary neuropathy end points, (3) single versus composite neuropathic end points, (4) adequate reference values from study of population representative cohorts, and (5) the issue of clinical proficiency.

  13. Binational Arsenic Exposure Survey: Methodology and Estimated Arsenic Intake from Drinking Water and Urinary Arsenic Concentrations

    OpenAIRE

    Harris, Robin B.; Burgess, Jefferey L; Maria Mercedes Meza-Montenegro; Luis Enrique Gutiérrez-Millán; Mary Kay O’Rourke; Jason Roberge

    2012-01-01

    The Binational Arsenic Exposure Survey (BAsES) was designed to evaluate probable arsenic exposures in selected areas of southern Arizona and northern Mexico, two regions with known elevated levels of arsenic in groundwater reserves. This paper describes the methodology of BAsES and the relationship between estimated arsenic intake from beverages and arsenic output in urine. Households from eight communities were selected for their varying groundwater arsenic concentrations in Arizona, USA and...

  14. The IMAGE project: methodological issues for the molecular genetic analysis of ADHD

    Directory of Open Access Journals (Sweden)

    Faraone Stephen V

    2006-08-01

    Full Text Available Abstract The genetic mechanisms involved in attention deficit hyperactivity disorder (ADHD are being studied with considerable success by several centres worldwide. These studies confirm prior hypotheses about the role of genetic variation within genes involved in the regulation of dopamine, norepinephrine and serotonin neurotransmission in susceptibility to ADHD. Despite the importance of these findings, uncertainties remain due to the very small effects sizes that are observed. We discuss possible reasons for why the true strength of the associations may have been underestimated in research to date, considering the effects of linkage disequilibrium, allelic heterogeneity, population differences and gene by environment interactions. With the identification of genes associated with ADHD, the goal of ADHD genetics is now shifting from gene discovery towards gene functionality – the study of intermediate phenotypes ('endophenotypes'. We discuss methodological issues relating to quantitative genetic data from twin and family studies on candidate endophenotypes and how such data can inform attempts to link molecular genetic data to cognitive, affective and motivational processes in ADHD. The International Multi-centre ADHD Gene (IMAGE project exemplifies current collaborative research efforts on the genetics of ADHD. This European multi-site project is well placed to take advantage of the resources that are emerging following the sequencing of the human genome and the development of international resources for whole genome association analysis. As a result of IMAGE and other molecular genetic investigations of ADHD, we envisage a rapid increase in the number of identified genetic variants and the promise of identifying novel gene systems that we are not currently investigating, opening further doors in the study of gene functionality.

  15. An Improved Methodology to Overcome Key Issues in Human Fecal Metagenomic DNA Extraction

    Directory of Open Access Journals (Sweden)

    Jitendra Kumar

    2016-12-01

    Full Text Available Microbes are ubiquitously distributed in nature, and recent culture-independent studies have highlighted the significance of gut microbiota in human health and disease. Fecal DNA is the primary source for the majority of human gut microbiome studies. However, further improvement is needed to obtain fecal metagenomic DNA with sufficient amount and good quality but low host genomic DNA contamination. In the current study, we demonstrate a quick, robust, unbiased, and cost-effective method for the isolation of high molecular weight (>23 kb metagenomic DNA (260/280 ratio >1.8 with a good yield (55.8 ± 3.8 ng/mg of feces. We also confirm that there is very low human genomic DNA contamination (eubacterial: human genomic DNA marker genes = 227.9:1 in the human feces. The newly-developed method robustly performs for fresh as well as stored fecal samples as demonstrated by 16S rRNA gene sequencing using 454 FLX+. Moreover, 16S rRNA gene analysis indicated that compared to other DNA extraction methods tested, the fecal metagenomic DNA isolated with current methodology retains species richness and does not show microbial diversity biases, which is further confirmed by qPCR with a known quantity of spike-in genomes. Overall, our data highlight a protocol with a balance between quality, amount, user-friendliness, and cost effectiveness for its suitability toward usage for culture-independent analysis of the human gut microbiome, which provides a robust solution to overcome key issues associated with fecal metagenomic DNA isolation in human gut microbiome studies.

  16. An Improved Methodology to Overcome Key Issues in Human Fecal Metagenomic DNA Extraction.

    Science.gov (United States)

    Kumar, Jitendra; Kumar, Manoj; Gupta, Shashank; Ahmed, Vasim; Bhambi, Manu; Pandey, Rajesh; Chauhan, Nar Singh

    2016-12-01

    Microbes are ubiquitously distributed in nature, and recent culture-independent studies have highlighted the significance of gut microbiota in human health and disease. Fecal DNA is the primary source for the majority of human gut microbiome studies. However, further improvement is needed to obtain fecal metagenomic DNA with sufficient amount and good quality but low host genomic DNA contamination. In the current study, we demonstrate a quick, robust, unbiased, and cost-effective method for the isolation of high molecular weight (>23kb) metagenomic DNA (260/280 ratio >1.8) with a good yield (55.8±3.8ng/mg of feces). We also confirm that there is very low human genomic DNA contamination (eubacterial: human genomic DNA marker genes=2(27.9):1) in the human feces. The newly-developed method robustly performs for fresh as well as stored fecal samples as demonstrated by 16S rRNA gene sequencing using 454 FLX+. Moreover, 16S rRNA gene analysis indicated that compared to other DNA extraction methods tested, the fecal metagenomic DNA isolated with current methodology retains species richness and does not show microbial diversity biases, which is further confirmed by qPCR with a known quantity of spike-in genomes. Overall, our data highlight a protocol with a balance between quality, amount, user-friendliness, and cost effectiveness for its suitability toward usage for culture-independent analysis of the human gut microbiome, which provides a robust solution to overcome key issues associated with fecal metagenomic DNA isolation in human gut microbiome studies. Copyright © 2016 The Authors. Production and hosting by Elsevier Ltd.. All rights reserved.

  17. Does influenza vaccination improve pregnancy outcome? Methodological issues and research needs.

    Science.gov (United States)

    Savitz, David A; Fell, Deshayne B; Ortiz, Justin R; Bhat, Niranjan

    2015-11-25

    Evidence that influenza vaccination during pregnancy is safe and effective at preventing influenza disease in women and their children through the first months of life is increasing. Several reports of reduced risk of adverse outcomes associated with influenza vaccination have generated interest in its potential for improving pregnancy outcome. Gavi, the Vaccine Alliance, estimates maternal influenza immunization programs in low-income countries would have a relatively modest impact on mortality compared to other new or under-utilized vaccines, however the impact would be substantially greater if reported vaccine effects on improved pregnancy outcomes were accurate. Here, we examine the available evidence and methodological issues bearing on the relationship between influenza vaccination and pregnancy outcome, particularly preterm birth and fetal growth restriction, and summarize research needs. Evidence for absence of harm associated with vaccination at a point in time is not symmetric with evidence of benefit, given the scenario in which vaccination reduces risk of influenza disease and, in turn, risk of adverse pregnancy outcome. The empirical evidence for vaccination preventing influenza in pregnant women is strong, but the evidence that influenza itself causes adverse pregnancy outcomes is inconsistent and limited in quality. Studies of vaccination and pregnancy outcome have produced mixed evidence of potential benefit but are limited in terms of influenza disease assessment and control of confounding, and their analytic methods often fail to fully address the longitudinal nature of pregnancy and influenza prevalence. We recommend making full use of results of randomized trials, re-analysis of existing observational studies to account for confounding and time-related factors, and quantitative assessment of the potential benefits of vaccination in improving pregnancy outcome, all of which should be informed by the collective engagement of experts in influenza

  18. A Survey on Privacy Issues in Digital Forensics

    Directory of Open Access Journals (Sweden)

    Asou Aminnezhad

    2015-05-01

    Full Text Available Privacy issues have always been a major concern in computer forensics and security and in case of any investigation whether it is pertaining to computer or not always privacy issues appear. To enable privacy’s protection in the physical world we need the law that should be legislated, but in a digital world by rapidly growing of technology and using the digital devices more and more that generate a huge amount of private data it is impossible to provide fully protected space in cyber world during the transfer, store and collect data. Since its introduction to the field, forensics investigators, and developers have faced challenges in finding the balance between retrieving key evidences and infringing user privacy. This paper looks into developmental trends in computer forensics and security in various aspects in achieving such a balance. In addition, the paper analyses each scenario to determine the trend of solutions in these aspects and evaluate their effectiveness in resolving the aforementioned issues.

  19. Literature Survey on Technical Issues and Insights of Multi-Unit PSA

    Energy Technology Data Exchange (ETDEWEB)

    Baek, Sejin; Park, Soyoung; Heo, Gyunyoung [Kyung Hee Univ., Yongin (Korea, Republic of)

    2016-10-15

    The need consider the risk impact in case of multi-unit in a single site increased after the accident at Fukushima Daiichi in March 2011. This means that we have to consider the single-unit initiators impacting the other units and the simultaneous accidents of the multi-unit on the same site. Particularly, this kind of technical concern is serious in case of the Republic of Korea where multi-units had to be located in high-density population area due to geographical features. The Nuclear Safety and Security Commission (NSSC) in the Republic of Korea has been trying to identify the state of the art of international and domestic regulations and techniques on multi-unit risk assessment and planning the road map for the safety researches. However, we have to say that finding a common accepted methodology along with safety criteria for multi-unit PSA was not an easy task up to now. This paper summarizes and analyzes related international and domestic journals' papers, conferences' papers and reports about the multi-unit PSA classifying categories with themes to understand the technical tendency of multi-unit PSA. In addition, some insights that were obtained from this classification have been arranged too. This paper investigated the technical trend of the multi-unit PSA as collecting of the international and domestic journals' papers, conferences papers and reports, and analyzing them. Upon the literature survey, a few statistics, technical issues, and insights were summarized. Both of the fundamental and practical researches need to find a globally accepted methodology to calculate and determine quantitative objectives for a multi-unit PSA. We want to expect that this paper can be shared to understand the current status of multi-unit PSA.

  20. Large population survey: strengths and limits. Methodology of the EDIFICE survey.

    Science.gov (United States)

    Roussel, Claire; Touboul, Chantal

    2011-01-01

    In France, mass screening for breast and colon cancer issupported by the French National Cancer Institute (INCa). In these nationwide screening campaigns, individuals aged between 50 and 74 years receive a personalized letter inviting them for a screening examination every 2 years. Prostate cancer screening is, however, still controversial and has not been included in the INCa recommendations so far. Research organizations are particularly interested in screening and indeed, several studies have been conducted in France and other countries to examine the different aspects of the subject. To provide actual benefits, screening should be undertaken on a regular scheduled basis. Therefore, several studies have assessed the factors influencing the participation rate of women in breast cancer screening in France (). The Institut National de Prévention et d'Education pour la Santé conducted one of these in 2005: the Baromètre Cancer (including 4046 individuals aged 15 years or older, interviewed by telephone) analysed beliefs and perceptions about cancer screening and studied attendance rates for breast, colon and prostate cancer (including scheduled screening). No previous survey has ever been conducted simultaneously among the general population and physicians with regard to individual and scheduled screening for breast cancer and colorectal cancer (CRC) or individual screening for prostate cancer. EDIFICE is thus the first large-scale survey to assess screening practices in France by analysing the targeted population on the one hand and the clinical practice of French general practitioners (GPs) on the other hand, using the 'mirror study' method to compare results. Two national surveys were conducted in 2005 and 2008. In 2005, only 22 geographical regions were included in the screening programme for CRC.

  1. Breaking bad news issues: A survey among radiation oncologists

    Directory of Open Access Journals (Sweden)

    Milind Kumar

    2009-01-01

    Full Text Available Introduction: Discussion of bad news and resuscitation in terminal cancer is an important but difficult and often neglected issue in day-to-day oncology practice. Materials and Methods: We interviewed 35 radiation oncologists using an indigenous 15-item questionnaire on their beliefs about breaking bad news and resuscitation to terminal cancer patients. Results: Most responders had an oncology experience of three to seven years (20/35.Thirty-two were comfortable discussing cancer diagnosis, prognosis and life expectancy-related issues. A similar number believed all cancer-related information should be disclosed, while only four believed in imparting all information in one visit. All agreed that disclosing sensitive information did not affect survival. When requested by relatives to withhold truth from patients, 11 said they would not comply, 22 agreed to tell the truth only if asked and two agreed to avoid difficult questions. Twenty responders denied having been adequately trained in breaking bad news and were keen on dedicated classes or sessions in this area of practice. Most (33/35 believed that Indian patients were keen on knowing their diagnosis and prognosis. Although all agreed to the importance of discussing resuscitation, only 17 believed patients should be involved. Majority (20/35 agreed that the issue needs to be discussed while the patient was conscious. Patients with unsalvageable disease were deemed unsuitable for aggressive resuscitation by 30 responders while the rest believed it should be offered to all. Most (21/35 admitted to feeling depressed after breaking bad news though only seven felt disclosure was more stressful than untruthful statements. Only four knew of a law regarding resuscitation in cancer. Conclusion: Observing the widely varied beliefs and practices for disclosing bad news, it is recommended that such training be a regular part of medicine curriculum, especially in the Oncology setting.

  2. Survey on Security Issues in Vehicular Ad Hoc Networks

    Directory of Open Access Journals (Sweden)

    Bassem Mokhtar

    2015-12-01

    Full Text Available Vehicular Ad hoc NETworks are special case of ad hoc networks that, besides lacking infrastructure, communicating entities move with various accelerations. Accordingly, this impedes establishing reliable end-to-end communication paths and having efficient data transfer. Thus, VANETs have different network concerns and security challenges to get the availability of ubiquitous connectivity, secure communications, and reputation management systems which affect the trust in cooperation and negotiation between mobile networking entities. In this survey, we discuss the security features, challenges, and attacks of VANETs, and we classify the security attacks of VANETs due to the different network layers.

  3. Data-Flow Modeling: A Survey of Issues and Approaches

    OpenAIRE

    Cristina-Claudia DOLEAN; Razvan PETRUSEL

    2012-01-01

    This paper presents a survey of previous research on modeling the data flow perspective of business processes. When it comes to modeling and analyzing business process models the current research focuses on control flow modeling (i.e. the activities of the process) and very little attention is paid to the data-flow perspective. But data is essential in a process. In order to execute a workflow, the tasks need data. Without data or without data available on time, the control flow cannot be exe...

  4. An Overview of Ophthalmologic Survey Methodology in the 2008-2015 Korean National Health and Nutrition Examination Surveys.

    Science.gov (United States)

    Yoon, Kyung Chul; Choi, Won; Lee, Hyo Seok; Kim, Sang-Duck; Kim, Seung-Hyun; Kim, Chan Yun; Park, Ki Ho; Park, Young Jeung; Baek, Seung-Hee; Song, Su Jeong; Shin, Jae Pil; Yang, Suk-Woo; Yu, Seung-Young; Lee, Jong Soo; Lim, Key Hwan; Oh, Kyung Won; Kang, Se Woong

    2015-12-01

    The Korea National Health and Nutrition Examination Survey (KNHANES) is a national program designed to assess the health and nutritional status of the noninstitutionalized population of South Korea. The KNHANES was initiated in 1998 and has been conducted annually since 2007. Starting in the latter half of 2008, ophthalmologic examinations were included in the survey in order to investigate the prevalence and risk factors of common eye diseases such as visual impairment, refractive errors, strabismus, blepharoptosis, cataract, pterygium, diabetic retinopathy, age-related macular degeneration, glaucoma, dry eye disease, and color vision deficiency. The measurements included in the ophthalmic questionnaire and examination methods were modified in the KNHANES IV, V, and VI. In this article, we provide detailed information about the methodology of the ophthalmic examinations in KNHANES in order to aid in further investigations related to major eye diseases in South Korea.

  5. SURVEY OF WORKFLOW ANALYSIS IN PAST AND PRESENT ISSUES

    Directory of Open Access Journals (Sweden)

    SARAVANAN .M.S,

    2011-06-01

    Full Text Available This paper surveys the workflow analysis in the view of business process for all organizations. The business can be defined as an organization that provides goods and services to others, who want or need them. The concept of managing business processes is referred to as Business Process Management (BPM. A workflow is the automation of a business process, in whole or part, during which documents, information or tasks are passed from one participant to another for action, according to a set of procedural rules. The process mining aims at extracting useful and meaningful information from event logs, which is a set of real executions of business process at any organizations. This paper briefly reviews the state-or-the-art of business processes developed so far and the techniques adopted. Also presents, the survey of workflow analysis in the view of business process can be broadly classified into four major categories, they are Business Process Modeling, Ontology based Business Process Management, Workflow based Business Process Controlling and Business Process Mining.

  6. Current psychometric and methodological issues in the measurement of overgeneral autobiographical memory.

    Science.gov (United States)

    Griffith, James W; Sumner, Jennifer A; Raes, Filip; Barnhofer, Thorsten; Debeer, Elise; Hermans, Dirk

    2012-12-01

    Autobiographical memory is a multifaceted construct that is related to psychopathology and other difficulties in functioning. Across many studies, a variety of methods have been used to study autobiographical memory. The relationship between overgeneral autobiographical memory (OGM) and psychopathology has been of particular interest, and many studies of this cognitive phenomenon rely on the Autobiographical Memory Test (AMT) to assess it. In this paper, we examine several methodological approaches to studying autobiographical memory, and focus primarily on methodological and psychometric considerations in OGM research. We pay particular attention to what is known about the reliability, validity, and methodological variations of the AMT. The AMT has adequate psychometric properties, but there is great variability in methodology across studies that use it. Methodological recommendations and suggestions for future studies are presented.

  7. Dietary survey methodology of FINDIET 2007 with a risk assessment perspective.

    Science.gov (United States)

    Reinivuo, Heli; Hirvonen, Tero; Ovaskainen, Marja-Leena; Korhonen, Tommi; Valsta, Liisa M

    2010-06-01

    A cross-sectional survey, FINDIET 2007, was carried out in Finland. Food intake data was collected by a 48 h recall interview. Additional food intake data was collected by a repeated 3 d food diary, a barcode-based product diary, a food frequency questionnaire and by a supplementary questionnaire on rarely eaten foods. The purpose of the present paper is to describe the methodology of the national dietary survey and to discuss the particular implications for the applications of food consumption data in risk assessment. The food consumption data of the FINDIET 2007 survey can be used in food risk assessment, due thanks to flexible data processing of individual food consumption, and a risk assessment point of view was taken into account. However, international standardisation projects are needed in order to estimate comparable food intakes.

  8. Methodological issues concerning the application of reliable laser particle sizing in soils

    Science.gov (United States)

    de Mascellis, R.; Impagliazzo, A.; Basile, A.; Minieri, L.; Orefice, N.; Terribile, F.

    2009-04-01

    During the past decade, the evolution of technologies has enabled laser diffraction (LD) to become a much widespread means of particle size distribution (PSD), replacing sedimentation and sieve analysis in many scientific fields mainly due to its advantages of versatility, fast measurement and high reproducibility. Despite such developments of the last decade, the soil scientist community has been quite reluctant to replace the good old sedimentation techniques (ST); possibly because of (i) the large complexity of the soil matrix inducing different types of artefacts (aggregates, deflocculating dynamics, etc.), (ii) the difficulties in relating LD results with results obtained through sedimentation techniques and (iii) the limited size range of most LD equipments. More recently LD granulometry is slowly gaining appreciation in soil science also because of some innovations including an enlarged size dynamic range (0,01-2000 m) and the ability to implement more powerful algorithms (e.g. Mie theory). Furthermore, LD PSD can be successfully used in the application of physically based pedo-transfer functions (i.e., Arya and Paris model) for investigations of soil hydraulic properties, due to the direct determination of PSD in terms of volume percentage rather than in terms of mass percentage, thus eliminating the need to adopt the rough approximation of a single value for soil particle density in the prediction process. Most of the recent LD work performed in soil science deals with the comparison with sedimentation techniques and show the general overestimation of the silt fraction following a general underestimation of the clay fraction; these well known results must be related with the different physical principles behind the two techniques. Despite these efforts, it is indeed surprising that little if any work is devoted to more basic methodological issues related to the high sensitivity of LD to the quantity and the quality of the soil samples. Our work aims to

  9. Alcohol mixed with energy drinks: methodology and design of the Utrecht Student Survey

    Science.gov (United States)

    de Haan, Lydia; de Haan, Hein A; Olivier, Berend; Verster, Joris C

    2012-01-01

    This paper describes the methodology of the Utrecht Student Survey. This online survey was conducted in June 2011 by 6002 students living in Utrecht, The Netherlands. The aim of the survey was to determine the potential impact of mixing alcoholic beverages with energy drinks on overall alcohol consumption and alcohol-related consequences. In contrast to most previous surveys conducted on this topic, the current survey used a more appropriate within-subject design, comparing the alcohol consumption of individuals who consume alcohol mixed with energy drinks on occasions. Specifically, a comparison was conducted to examine the occasions during which these individuals consume this mixture versus occasions during which they consume alcohol alone. In addition to energy drinks, the consumption of other non-alcoholic mixers was also assessed when combined with alcoholic beverages. Furthermore, the reasons for consuming energy drinks alone or in combination with alcohol were investigated, and were compared to reasons for mixing alcohol with other non-alcoholic beverages. Finally, personality characteristics and the level of risk-taking behavior among the individuals were also assessed to explore their relationship with alcohol consumption. The Utrecht Student Survey will be replicated in the USA, Australia, and the UK. Results will be pooled, but also examined for possible cross-cultural differences. PMID:23118547

  10. A Study to Examine Differences Between In Person and Online Survey Data Collection Methodologies.

    Directory of Open Access Journals (Sweden)

    ROBERT CASE,

    2009-01-01

    Full Text Available The purpose of this study was to examine differences between the results of an in person or face-to-face direct spending survey and a post-event online direct spending survey. Participants in a large annual marathon held in the Mid-Atlantic Region of the United States were used as subjects for the study. The research methodology selected for this study included an in person survey instrument administered to out-of-town marathon participants prior to the start of the event during the race number and race timing chip pick-up period. The same survey instrument was administered online four days after the conclusion of the marathon to the same group of out-of-town marathon participants who did not previously respond to the in person survey. Analysis of data and results revealed that average direct spending for the online respondents was consistently and significantly higher than spending for the in person respondents on direct spending questions. Spending on lodging for both groups showed no significant differences. It was recommended that the use of online survey methods be considered when conducting direct spending studies for participant oriented sporting events when adequate e-mail addresses are available and the potential respondents have a certain level of computer literacy.

  11. Philosophical Issues in Doctoral Education in Social Work: A Survey of Doctoral Program Directors.

    Science.gov (United States)

    Anastas, Jeane W.; Congress, Elaine P.

    1999-01-01

    Surveyed 48 social-work doctoral-program directors about the inclusion of philosophical issues in the curriculum. The survey asked about traditional and emergent epistemologies, including heuristics, social constructivism, and other forms of postmodernism. Results suggest that while such content is included in research courses, directors face…

  12. A Survey on Security Issues in Big Data and NoSQL

    Directory of Open Access Journals (Sweden)

    Ebrahim Sahafizadeh

    Full Text Available This paper presents a survey on security and privacy issues in big data and NoSQL. Due to the high volume, velocity and variety of big data, security and privacy issues are different in such streaming data infrastructures with diverse data format. Therefo ...

  13. Working with Clients Who Have Religious/Spiritual Issues: A Survey of University Counseling Center Therapists

    Science.gov (United States)

    Kellems, Ian S.; Hill, Clara E.; Crook-Lyon, Rachel E.; Freitas, Gary

    2010-01-01

    University counseling center therapists (N = 220) completed an Internet survey about religion/spirituality in therapy, with 200 of these therapists describing therapy with a recent client whose issues involved religion/spirituality. Common client religion/spirituality issues were questioning one's childhood religion, exploring…

  14. Survey on Issues related to National Nuclear Promotion Policy

    Energy Technology Data Exchange (ETDEWEB)

    Woo, Byungchool; Lee, Youngjoon; Lee, Youngcheol; Jeong, I. K.; Kim, Hyunjun; Kim, Youngsoo; Yun, Sungwon; Moon, Keehwan; Chung, Whansam

    2013-06-15

    Ο Major issues surrounding nuclear are including suspicions about nuclear safety, spent-fuel management, acquiring the advanced R and D capabilities and making the nuclear a creative industry Ο Solid measures for securing safety should be formulated and implemented for reducing public anxiety of nuclear use Ο The long-term R and D performance system from a scientific perspective should be established for expanding Research and Development for safer use of nuclear Ο The spent-fuel management policy should be determined through publicizing process Ο Establishing small and medium enterprises-oriented supply system of reactors and SMRs and Encouraging the radiation fusion technology industrialization for promoting creative industry utilizing nuclear.

  15. Pain issues from the palliative perspective: a survey among doctors in Hospital Melaka.

    Science.gov (United States)

    Taye, G A W C

    2006-10-01

    This survey was intended to gauge the management of pain in palliative cancer patients by the doctors in Melaka Hospital. It also sought to identify possible barriers to adequate pain management among doctors and gauge their response to the adequacy of medical school teaching on cancer pain issues. A 39 item survey was used to cover the issues involved. Overall, the doctors displayed a lack of systematic approach to cancer pain management with inadequate knowledge of analgesia handling. Medical school exposure to cancer pain issues was lacking. Formulation of accepted clinical practice guidelines and new education strategies can improve cancer pain management.

  16. A Survey of Solver-Related Geometry and Meshing Issues

    Science.gov (United States)

    Masters, James; Daniel, Derick; Gudenkauf, Jared; Hine, David; Sideroff, Chris

    2016-01-01

    There is a concern in the computational fluid dynamics community that mesh generation is a significant bottleneck in the CFD workflow. This is one of several papers that will help set the stage for a moderated panel discussion addressing this issue. Although certain general "rules of thumb" and a priori mesh metrics can be used to ensure that some base level of mesh quality is achieved, inadequate consideration is often given to the type of solver or particular flow regime on which the mesh will be utilized. This paper explores how an analyst may want to think differently about a mesh based on considerations such as if a flow is compressible vs. incompressible or hypersonic vs. subsonic or if the solver is node-centered vs. cell-centered. This paper is a high-level investigation intended to provide general insight into how considering the nature of the solver or flow when performing mesh generation has the potential to increase the accuracy and/or robustness of the solution and drive the mesh generation process to a state where it is no longer a hindrance to the analysis process.

  17. Anti-Semitism and criticism of Israel: Methodology and results of the ASCI survey

    Directory of Open Access Journals (Sweden)

    Wilhelm Kempf

    2015-04-01

    Full Text Available Building upon psychological conflict theory, on the one hand, and item-response models, on the other, the present paper develops an integrated methodology that aims at differentiating the various ways of criticizing Israel. An application of this methodology to the Anti-Semitism and Criticism of Israel (ASCI survey found two ways of criticizing Israel resulting from two different and antipodal processes. (1 Anti-Semitic criticism of Israel is generally laden with prejudice and shares not only anti-Semitic, anti-Zionist and anti-Israeli, but also anti-Palestinian resentments as well. (2 Non-anti-Semitic criticism of Israel is motivated by pacifism and human rights commitment and rejects any form of anti-Semitic, anti-Zionist, anti-Israeli or anti-Palestinian resentment. However, even critics of Israel who were not originally motivated by anti-Semitism are also in danger of developing anti-Semitic prejudices.

  18. U.S. Geological Survey Methodology Development for Ecological Carbon Assessment and Monitoring

    Science.gov (United States)

    Zhu, Zhi-Liang; Stackpoole, S.M.

    2009-01-01

    Ecological carbon sequestration refers to transfer and storage of atmospheric carbon in vegetation, soils, and aquatic environments to help offset the net increase from carbon emissions. Understanding capacities, associated opportunities, and risks of vegetated ecosystems to sequester carbon provides science information to support formulation of policies governing climate change mitigation, adaptation, and land-management strategies. Section 712 of the Energy Independence and Security Act (EISA) of 2007 mandates the Department of the Interior to develop a methodology and assess the capacity of our nation's ecosystems for ecological carbon sequestration and greenhouse gas (GHG) flux mitigation. The U.S. Geological Survey (USGS) LandCarbon Project is responding to the Department of Interior's request to develop a methodology that meets specific EISA requirements.

  19. Product vs corporate carbon footprint: Some methodological issues. A case study and review on the wine sector.

    Science.gov (United States)

    Navarro, Alejandra; Puig, Rita; Fullana-I-Palmer, Pere

    2017-03-01

    Carbon footprint (CF) is nowadays one of the most widely used environmental indicators. The scope of the CF assessment could be corporate (when all production processes of a company are evaluated, together with upstream and downstream processes following a life cycle approach) or product (when one of the products is evaluated throughout its life cycle). Our hypothesis was that usually product CF studies (PCF) collect corporate data, because it is easier for companies to obtain them than product data. Six main methodological issues to take into account when collecting corporate data to be used for PCF studies were postulated and discussed in the present paper: fugitive emissions, credits from waste recycling, use of "equivalent factors", reference flow definition, accumulation and allocation of corporate values to minor products. A big project with 18 wineries, being wine one of the most important agri-food products assessed through CF methodologies, was used to study and to exemplify these 6 methodological issues. One of the main conclusions was that indeed, it is possible to collect corporate inventory data in a per year basis to perform a PCF, but having in mind the 6 methodological issues described here. In the literature, most of the papers are presenting their results as a PCF, while they collected company data and obtained, in fact, a "key performance indicator" (ie., CO2eq emissions per unit of product produced), which is then used as a product environmental impact figure. The methodology discussed in this paper for the wine case study is widely applicable to any other product or industrial activity. Copyright © 2017 Elsevier B.V. All rights reserved.

  20. Empirical Psycho-Aesthetics and Her Sisters: Substantive and Methodological Issues--Part II

    Science.gov (United States)

    Konecni, Vladimir J.

    2013-01-01

    Empirical psycho-aesthetics is approached in this two-part article from two directions. Part I, which appeared in the Winter 2012 issue of "JAE," addressed definitional and organizational issues, including the field's origins, its relation to "sister" disciplines (experimental philosophy, cognitive neuroscience of art, and neuroaesthetics), and…

  1. Project-Based Learning and Agile Methodologies in Electronic Courses: Effect of Student Population and Open Issues

    Directory of Open Access Journals (Sweden)

    Marina Zapater

    2013-12-01

    Full Text Available Project-Based Learning (PBL and Agile methodologies have proven to be very interesting instructional strategies in Electronics and Engineering education, because they provide practical learning skills that help students understand the basis of electronics. In this paper we analyze two courses, one belonging to a Master in Electronic Engineering and one to a Bachelor in Telecommunication Engineering that apply Agile-PBL methodologies, and compare the results obtained in both courses with a traditional laboratory course. Our results support previous work stating that Agile-PBL methodologies increase student satisfaction. However, we also highlight some open issues that negatively affect the implementation of these methodologies,such as planning overhead or accidental complexity. Moreover,we show how differences in the student population, mostly related to the time spent on-campus, their commitment to the course or part-time dedication, have an impact on the benefits of Agile-PBL methods. In these cases, Agile-PBL methodologies by themselves are not enough and need to be combined with other techniques to increase student motivation.

  2. Tourism planning in small tropical islands: methodological considerations and development issues in Samoa

    Directory of Open Access Journals (Sweden)

    Douglas G. Pearce

    2010-11-01

    Full Text Available En présentant la méthodologie utilisée dans la présentation du Plan d’Aménagement Touristique de Samoa 2002-2006, ce chapitre cherche à éclaircir certains aspects de l’aménagement touristique dans les petites îles tropicales, ainsi que ceux de la planification touristique en ces lieux.  Plus spécifiquement, cette étude présente une approche basée sur la formulation de questions destinées aux diverses parties intéressées afin d’identifier et puis d’adresser les points-clés de l’aménagement touristique dans le pays.  Quatre questions principales résultent de ce processus, à savoir : Combien de tourisme veut le pays et à quel rythme doit-il se développer pendant les cinq années à venir ? De quels facteurs dépend la croissance du tourisme pendant la période 2002-2006 ? Quelles formes de tourisme faut-il développer et à quels endroits ? Quels sont les processus d’aménagement touristique les plus appropriés pour Samoa? On présente ensuite les stratégies formulées dans le plan.  Pour conclure, il semble que la participation locale, bien qu’inappréciable, soit insuffisante par elle-même pour préparer un plan d’aménagement touristique efficace.This chapter seeks to contribute to a greater understanding of tourism on small tropical islands and to tourism planning in this context by outlining aspects of the methodology used in the preparation of the Samoa Tourism Development Plan 2002-2006 and by discussing some of the issues that arose from this process.  In particular, the chapter presents a ‘question-asking’ approach that involves wide-ranging stakeholder consultation to identify and then address key issues, namely: - How much tourism does Samoa want and at what rate should it be developed over the next five years? - What will the growth of tourism in Samoa over the period 2002-2006 depend on? - What forms of tourism should be developed and where? - What are the most appropriate processes

  3. Conceptual and Methodological Issues in the Behavioral Assessment and Treatment of Children's Fears and Phobias.

    Science.gov (United States)

    Kratochwill, Thomas R.; Morris, Richard J.

    1985-01-01

    A review of the conceptual and methodological considerations in assessment and treatment of children's fears and phobias is presented. Areas discussed include the definitional problems in the field, analogue and clinical research, experimental research methods, and criteria for the evaluation of outcome in fear and phobia research. (Author/DWH)

  4. Conceptual issues of research methodology for the behavioural, life and social sciences

    NARCIS (Netherlands)

    Mellenbergh, G.J.; Adèr, H.J.; Baird, D.; Berger, M.P.F.; Cornell, J.E.; Hagenaars, J.A.P.; Molenaar, P.C.M.

    2003-01-01

    Research methodology (RM) must be clearly separated from substantive fields, such as medicine, psychology, education, sociology and economics, and, on the other side, from the philosophy of science and statistics. RM starts from substantive research problems and uses statistical knowledge, but it go

  5. Methodological Issues and Practical Strategies in Research on Child Maltreatment Victims' Abilities and Experiences as Witnesses

    Science.gov (United States)

    Chae, Yoojin; Goodman, Gail S.; Bederian-Gardner, Daniel; Lindsay, Adam

    2011-01-01

    Scientific studies of child maltreatment victims' memory abilities and court experiences have important legal, psychological, and clinical implications. However, state-of-the-art research on child witnesses is often hindered by methodological challenges. In this paper, we address specific problems investigators may encounter when attempting such…

  6. New Directions in Research: Contemporary Qualitative Research Methodologies and Issues in Literacy Education

    Science.gov (United States)

    Tobin, Joseph; Steinkuehler, Constance A.; Black, Rebecca W.; Clinton, Katherine A.; Hinchman, Kathleen A.; Dillon, Deborah R.

    2005-01-01

    Scholars who are drawn to qualitative research methodologies represent a diverse group of disciplines and fields. They also represent themselves as researchers and the theoretical frameworks in which they work quite differently. Indeed, it was this diversity in representation that initially motivated us to propose a New Directions feature on…

  7. Methodological Issues and Practical Strategies in Research on Child Maltreatment Victims' Abilities and Experiences as Witnesses

    Science.gov (United States)

    Chae, Yoojin; Goodman, Gail S.; Bederian-Gardner, Daniel; Lindsay, Adam

    2011-01-01

    Scientific studies of child maltreatment victims' memory abilities and court experiences have important legal, psychological, and clinical implications. However, state-of-the-art research on child witnesses is often hindered by methodological challenges. In this paper, we address specific problems investigators may encounter when attempting such…

  8. A Survey on Security Issues in Ad Hoc Routing Protocols and their Mitigation Techniques

    CERN Document Server

    Kayarkar, Harshavardhan

    2012-01-01

    Mobile Ad hoc Networks (MANETS) are transient networks of mobile nodes, connected through wireless links, without any fixed infrastructure or central management. Due to the self-configuring nature of these networks, the topology is highly dynamic. This makes the Ad Hoc Routing Protocols in MANETS highly vulnerable to serious security issues. In this paper, we survey the common security threats and attacks and summarize the solutions suggested in the survey to mitigate these security vulnerabilities.

  9. Personality variables as mediators and moderators of family history risk for alcoholism: conceptual and methodological issues.

    Science.gov (United States)

    Rogosch, F; Chassin, L; Sher, K J

    1990-07-01

    Recently there has been great interest in possible mediators and moderators of family history risk for alcoholism. However, previous studies have failed to employ appropriate designs and data analytic strategies to identify moderators and mediators. This article uses a large data set to illustrate such analyses. In the current data, both presumed personality risk and dispositional self-awareness were found to play moderator (rather than mediator) roles. The conceptual, methodological and data analytic implications of the mediator-moderator distinction are discussed.

  10. Methodological issues in the study of intestinal microbiota in irritable bowel syndrome

    OpenAIRE

    2014-01-01

    Irritable bowel syndrome (IBS) is an intestinal functional disorder with the highest prevalence in the industrialized world. The intestinal microbiota (IM) plays a role in the pathogenesis of IBS and is not merely a consequence of this disorder. Previous research efforts have not revealed unequivocal microbiological signatures of IBS, and the experimental results are contradictory. The experimental methodologies adopted to investigate the complex intestinal ecosystem drastically impact the qu...

  11. Methodological note: allocation of disability items in the American Community Survey.

    Science.gov (United States)

    Siordia, Carlos; Young, Rebekah

    2013-04-01

    Determining the prevalence and correlates of disability requires the use of sample surveys in data analysis. In an effort to generate complete datasets, allocation procedures (i.e., the assignment of values to missing or illogical responses) are frequently used for missing or inconsistent responses. The goal of this investigation was to explore how six disability-related questions vary in their degree of allocation and how research results may be sensitive to this procedure. This is important because many researchers using large disability information banks are not survey methodologists and may be unaware of how the Census Bureau's editing procedures can influence research findings. We use 2010 1-year Public Use Microdata Sample files from the American Community Survey (ACS). We investigated the allocation rates of the following disability items: self-care; hearing; vision; independent living; ambulatory; and cognitive ability. We also asked how allocation rates varied by demographic characteristics and whether the allocated values could influence multivariate results. Disability item allocation in ACS data have detectable patterns, where the rate of disability allocation is higher for mail surveys, males, older people, groups who speak English not well or not at all, US citizens, Latinos(as), and for people living in or near poverty. Multivariate models may be sensitive to how these allocated values are treated. The rate of allocations varies as a function of demographic variables because of methodological procedures and survey participation behaviors. Because allocation rates may affect research and policy about the disabled population, more research is required. Copyright © 2013 Elsevier Inc. All rights reserved.

  12. [Methodological Aspects of the Sampling Design for the 2015 National Mental Health Survey].

    Science.gov (United States)

    Rodríguez, Nelcy; Rodríguez, Viviana Alejandra; Ramírez, Eugenia; Cediel, Sandra; Gil, Fabián; Rondón, Martín Alonso

    2016-12-01

    The WHO has encouraged the development, implementation and evaluation of policies related to mental health all over the world. In Colombia, within this framework and promoted by the Ministry of Health and Social Protection, as well as being supported by Colciencias, the fourth National Mental Health Survey (NMHST) was conducted using a observational cross sectional study. According to the context and following the guidelines and sampling design, a summary of the methodology used for this sampling process is presented. The fourth NMHST used the Homes Master Sample for Studies in Health from the National System of Studies and Population Surveys for Health to calculate its sample. This Master Sample was developed and implemented in the year 2013 by the Ministry of Social Protection. This study included non-institutionalised civilian population divided into four age groups: children 7-11 years, adolescent 12-17 years, 18-44 years and 44 years old or older. The sample size calculation was based on the reported prevalences in other studies for the outcomes of mental disorders, depression, suicide, associated morbidity, and alcohol use. A probabilistic, cluster, stratified and multistage selection process was used. Expansions factors to the total population were calculated. A total of 15,351 completed surveys were collected and were distributed according to the age groups: 2727, 7-11 years, 1754, 12-17 years, 5889, 18-44 years, and 4981, ≥45 years. All the surveys were distributed in five regions: Atlantic, Oriental, Bogotá, Central and Pacific. A sufficient number of surveys were collected in this study to obtain a more precise approximation of the mental problems and disorders at the regional and national level. Copyright © 2016 Asociación Colombiana de Psiquiatría. Publicado por Elsevier España. All rights reserved.

  13. Context variations and pluri-methodological issues concerning the expression of a social representation: the example of the Gypsy community.

    Science.gov (United States)

    Piermattéo, Anthony; Lo Monaco, Grégory; Moreau, Laure; Girandola, Fabien; Tavani, Jean-Louis

    2014-11-20

    Within the social representations' field of research, the "mute zone" hypothesis considers that some objects are characterized by counternormative content that people usually do not express in standard conditions of production. Within the framework of this approach, this study aims to explore the variations in the expression about the Gypsy community following the manipulation of different contexts and the issues associated with a pluri-methodological approach of data analysis. Indeed, two methodologies have been combined. The participants were asked to express themselves in public or in private. In addition, the identity of the experimenter was also manipulated as she presented herself as a Gypsy or not. Then, through a set of analyses based on a methodological triangulation approach, we were able to observe a recurrent modulation of the participants' answers. These analyses highlighted a greater incidence of the expression of counternormative elements when the context of expression was private and especially when the experimenter did not present herself as a Gypsy (p < .01, η p ² = .06). These results will be discussed in terms of the contribution of the methodologies employed and their comparison within the framework of the study of counternormative content.

  14. Empirical Psycho-Aesthetics and Her Sisters: Substantive and Methodological Issues--Part I

    Science.gov (United States)

    Konecni, Vladimir J.

    2012-01-01

    Empirical psycho-aesthetics--an interdisciplinary field with a long tradition--is approached in this two-part article from two directions, in each case with several objectives. Part I, in this issue of "JAE", is devoted to the first direction, which is mainly definitional and organizational: the objectives are to present an outline of the field's…

  15. Methodological issues in life cycle assessment of mixed-culture polyhydroxyalkanoate production utilising waste as feedstock.

    Science.gov (United States)

    Heimersson, Sara; Morgan-Sagastume, Fernando; Peters, Gregory M; Werker, Alan; Svanström, Magdalena

    2014-06-25

    Assessing the environmental performance of emerging technologies using life cycle assessment (LCA) can be challenging due to a lack of data in relation to technologies, application areas or other life cycle considerations, or a lack of LCA methodology that address the specific concerns. Nevertheless, LCA can be a valuable tool in the environmental optimisation in the technology development phase. One emerging technology is the mixed-culture production of polyhydroxyalkanoates (PHAs). PHA production by pure microbial cultures has been developed and assessed in several LCAs during the previous decade. Recent developments within mixed-culture PHA production call for environmental assessment to guide in technology development. Mixed-culture PHA production can use the organic content in wastewater as a feedstock; the production may then be integrated with wastewater treatment (WWT) processes. This means that mixed-culture PHA is produced as a by-product from services in the WWT. This article explores different methodological challenges for LCA of mixed-culture PHA production using organic material in wastewater as feedstock. LCAs of both pure- and mixed-culture PHA production were reviewed. Challenges, similarities and differences when assessing PHA production by mixed- or pure-cultures were identified and the resulting implications for methodological choices in LCA were evaluated and illustrated, using a case study with mixed- and pure-culture PHA model production systems, based on literature data. Environmental impacts of processes producing multiple products or services need to be allocated between the different products or services. Such situations occur both in feedstock production and when the studied system is providing multiple functions. The selection of allocation method is shown to determine the LCA results. The type of data used, for electricity in the energy system, is shown to be important for the results, which indicates, a strong regional dependency of

  16. Methodological issues and research recommendations for prognosis after mild traumatic brain injury

    DEFF Research Database (Denmark)

    Kristman, Vicki L; Borg, Jörgen; Godbolt, Alison K

    2014-01-01

    The International Collaboration on Mild Traumatic Brain Injury (MTBI) Prognosis performed a comprehensive search and critical review of the literature from 2001 to 2012 to update the 2002 best-evidence synthesis conducted by the World Health Organization Collaborating Centre for Neurotrauma......, Prevention, Management and Rehabilitation Task Force on the prognosis of MTBI. Of 299 relevant studies, 101 were accepted as scientifically admissible. The methodological quality of the research literature on MTBI prognosis has not improved since the 2002 Task Force report. There are still many...

  17. Implementing a 1GHz Four-Issue Out-of-Order Execution Microprocessor in a Standard Cell ASIC Methodology

    Institute of Scientific and Technical Information of China (English)

    Wei-Wu Hu; Ji-Ye Zhao; Shi-Qiang Zhong; Xu Yang; Elio Guidetti; Chris Wu

    2007-01-01

    This paper introduces the microarchitecture and physical implementation of the Godson-2E processor, which is a four-issue superscalar RISC processor that supports the 64-bit MIPS instruction set.The adoption of the aggressive out-of-order execution and memory hierarchy techniques help Godson-2E to achieve high performance.The Godson-2E processor has been physically designed in a 7-metal 90nm CMOS process using the cell-based methodology with some bit-sliced manual placement and a number of crafted cells and macros.The processor can be run at 1GHz and achieves a SPEC CPU2000 rate higher than 500.

  18. Methodological issues in the study of intestinal microbiota in irritable bowel syndrome.

    Science.gov (United States)

    Taverniti, Valentina; Guglielmetti, Simone

    2014-07-21

    Irritable bowel syndrome (IBS) is an intestinal functional disorder with the highest prevalence in the industrialized world. The intestinal microbiota (IM) plays a role in the pathogenesis of IBS and is not merely a consequence of this disorder. Previous research efforts have not revealed unequivocal microbiological signatures of IBS, and the experimental results are contradictory. The experimental methodologies adopted to investigate the complex intestinal ecosystem drastically impact the quality and significance of the results. Therefore, to consider the methodological aspects of the research on IM in IBS, we reviewed 29 relevant original research articles identified through a PubMed search using three combinations of keywords: "irritable bowel syndrome + microflora", "irritable bowel syndrome + microbiota" and "irritable bowel syndrome + microbiome". For each study, we reviewed the quality and significance of the scientific evidence obtained with respect to the experimental method adopted. The data obtained from each study were compared with all considered publications to identify potential inconsistencies and explain contradictory results. The analytical revision of the studies referenced in the present review has contributed to the identification of microbial groups whose relative abundance significantly alters IBS, suggesting that these microbial groups could be IM signatures for this syndrome. The identification of microbial biomarkers in the IM can be advantageous for the development of new diagnostic tools and novel therapeutic strategies for the treatment of different subtypes of IBS.

  19. What Do People Know about Key Environmental Issues? A Review of Environmental Knowledge Surveys

    Science.gov (United States)

    Robelia, Beth; Murphy, Tony

    2012-01-01

    This paper presents results from 15 little publicized state and national environmental surveys in the US that used similar questions. Our analysis reveals trends in adult understanding of environmental issues. These trends indicate that many may have difficulty making informed decisions about environmental policy as citizens, voters, and…

  20. What Do People Know about Key Environmental Issues? A Review of Environmental Knowledge Surveys

    Science.gov (United States)

    Robelia, Beth; Murphy, Tony

    2012-01-01

    This paper presents results from 15 little publicized state and national environmental surveys in the US that used similar questions. Our analysis reveals trends in adult understanding of environmental issues. These trends indicate that many may have difficulty making informed decisions about environmental policy as citizens, voters, and…

  1. The Asilomar Survey: Stakeholders’ Opinions on Ethical Issues Related to Brain-Computer Interfacing

    NARCIS (Netherlands)

    Nijboer, F.; Clausen, J.; Allison, B.Z.; Haselager, W.F.G.

    2011-01-01

    Brain-Computer Interface (BCI) research and (future) applications raise important ethical issues that need to be addressed to promote societal acceptance and adequate policies. Here we report on a survey we conducted among 145 BCI researchers at the 4th International BCI conference, which took place

  2. The Asilomar Survey: Stakeholders' Opinions on Ethical Issues Related to Brain-Computer Interfacing

    NARCIS (Netherlands)

    Nijboer, Femke; Clausen, Jens; Allison, Brendan Z.; Haselager, Pim

    2011-01-01

    Brain-Computer Interface (BCI) research and (future) applications raise important ethical issues that need to be addressed to promote societal acceptance and adequate policies. Here we report on a survey we conducted among 145 BCI researchers at the 4th International BCI conference, which took place

  3. DETERMINANTS OF GROWTH RATE: SOME METHODOLOGICAL ISSUES WITH DATA FROM FIJI

    OpenAIRE

    Bhaskara Rao; Maheshwar Rao

    2005-01-01

    Compared to many cross-country studies on the determinants of growth rate, time series approaches are relatively few and limited in scope. However, time series studies are useful for country-specific policies. But in many recent works ad hoc specifications have been used to analyze the contribution of various factors to growth. This paper examines the specification and estimation issues in the time series approach and provides some guidelines. Our approach is used to illustrate the effects of...

  4. Methodological and Practical Issues of Scientific Research on the Retail Market

    Directory of Open Access Journals (Sweden)

    Balasescu, M.

    2014-06-01

    Full Text Available This paper highlights the role and importance of marketing research in a dynamic and complex sector such as retail. The paper approaches the theoretical issues related to the methods and instruments of marketing research appropriate for the retail market. The theory about qualitative and quantitative research methods is supported by relevant examples which lead to a better understanding of the marketing research process and of its effectiveness on retail activities.

  5. Typographic Landscapes of Pelotas: initial survey of the collection and some methodological definitions

    Directory of Open Access Journals (Sweden)

    Daniela Velleda Brisolara

    2016-03-01

    Full Text Available This paper presents part of the research “Pelotas Typographic Landscapes: An exploratory study of the typography in the urban space”. The study aims to investigate the different occurrences of typographic landscapes in certain urban areas of the city of Pelotas / RS to better understanding of typography as a historical and cultural information. The research is based on studies of ‘typographic landscapes’ that have been developed in recent years in several Brazilian cities, which presents methods for collecting, processing and analysis of typography data in the urban space. Therefore, the methodology adopted is based on the indications of investigative process already started in this field, such as the establishment of routes and field research records, making adaptations necessary to context. This paper presents samples of survey from two typographical categories performed in a specific region, in addition to the proposed adjustment to the structure of cataloguing and analysis record.

  6. Development of residential-conservation-survey methodology for the US Air Force. Interim report. Task two

    Energy Technology Data Exchange (ETDEWEB)

    Abrams, D. W.; Hartman, T. L.; Lau, A. S.

    1981-11-13

    A US Air Force (USAF) Residential Energy Conservation Methodology was developed to compare USAF needs and available data to the procedures of the Residential Conservation Service (RCS) program as developed for general use by utility companies serving civilian customers. Attention was given to the data implications related to group housing, climatic data requirements, life-cycle cost analysis, energy saving modifications beyond those covered by RCS, and methods for utilizing existing energy consumption data in approaching the USAF survey program. Detailed information and summaries are given on the five subtasks of the program. Energy conservation alternatives are listed and the basic analysis techniques to be used in evaluating their thermal performane are described. (MCW)

  7. [The Philosophical Relevance of the Study of Schizophrenia. Methodological and Conceptual Issues].

    Science.gov (United States)

    López-Silva, Pablo

    2014-01-01

    The study of mental illness involves profound methodological and philosophical debates. This article explores the disciplinary complementarity, particularly, between philosophy of mind, phenomenology, and empirical studies in psychiatry and psychopathology in the context of the understanding of schizophrenia. After clarifying the possible role of these disciplines, it is explored the way in which a certain symptom of schizophrenia (thought insertion) challenges the current phenomenological approach to the relationship between consciousness and self-awareness. Finally, it is concluded that philosophy of mind, phenomenology, and empirical studies in psychiatry and psychopathology should, necessarily, regulate their progress jointly in order to reach plausible conclusions about what we call 'schizophrenia'. Crown Copyright © 2014. Publicado por Elsevier España. All rights reserved.

  8. Delivering spacecraft control centers with embedded knowledge-based systems: The methodology issue

    Science.gov (United States)

    Ayache, S.; Haziza, M.; Cayrac, D.

    1994-01-01

    Matra Marconi Space (MMS) occupies a leading place in Europe in the domain of satellite and space data processing systems. The maturity of the knowledge-based systems (KBS) technology, the theoretical and practical experience acquired in the development of prototype, pre-operational and operational applications, make it possible today to consider the wide operational deployment of KBS's in space applications. In this perspective, MMS has to prepare the introduction of the new methods and support tools that will form the basis of the development of such systems. This paper introduces elements of the MMS methodology initiatives in the domain and the main rationale that motivated the approach. These initiatives develop along two main axes: knowledge engineering methods and tools, and a hybrid method approach for coexisting knowledge-based and conventional developments.

  9. Understanding pathways of exposure using site-specific habits surveys, particularly new pathways and methodologies

    Energy Technology Data Exchange (ETDEWEB)

    Grzechnik, M.; McTaggart, K.; Clyne, F. [Centre for Environment, Fisheries and Aquaculture Science, Lowestoft (United Kingdom)

    2006-07-01

    Full text of publication follows: UK policy on the control of radiation exposure via routine discharges from nuclear licensed sites has long been based on ICRP recommendations that embody the principles of justification of practices, optimisation of protection, and dose limitation. Radiological protection of the public is based on the concept of a critical group of individuals. This group is defined as those people who, as a result of the area they reside and their habits, receive the highest radiation dose due to the operations of a site. Therefore, if the dose to this critical group is acceptable in relation to relevant dose limits and constraints, then other members of the public will receive lower doses. Thus, the principle of critical groups provides overall protection for the public. Surveys to determine local habits involve an integrated methodology, whereby the potential radioactive exposure pathways from liquid and gaseous discharges and direct radiation from the site are investigated. Surveys to identify these habits must be undertaken rigorously for consistency, and have been known to reveal unexpected pathways of radiation exposure. Pathways typically include consumption of local foodstuffs and external exposure. Furthermore, a number of critical groups ma y be identified within a single survey area if the habits of one group do not adequately describe those of the other inhabitants of the area. Survey preparation involves the initial identification of high producers and consumers of local foods in a geographically defined area surrounding the nuclear facility. Pathways can be broken down into three general groups, which include exposure arising from; 1) Terrestrial (gaseous) discharges surveyed within 5 km of the site 2) Direct radiation surveyed within 1 km of the site 3) Aquatic (liquid) discharges surveyed within local areas affected by the discharges, including seas, rivers and sewage works. The survey fieldwork involves interviewing members of the

  10. Methodological Issues and Values Arising from the Construction of a Heritage Corridor Along Chinese Eastern Railway

    Institute of Scientific and Technical Information of China (English)

    Gao; Fei; Shao; Long

    2016-01-01

    The Chinese Eastern Railway(CER),which was designed by Russia in 1898 and constructed later by China,is a typical industrial cultural landscape of the 20 th century that enjoys a high uniqueness and representativeness due to its integrality and systematicness.It sits on a historic site with various kinds of resources,including architecture,railways,and other facilities.As there has been few changes with CER’s route,its resources are,in fact,still serviceable to the current railway system and people living along the route.However,considering the problems,such as lack of maintenance,ignorance of the society,inappropriate renovations,etc.,attention should be paid to CER’s value assessment before any reconstruction decisions are made.Although value assessment plays a very important role in the decision-making and investment-planning process,there is almost no related research on the construction of a heritage corridor along CER.Seeing that value assessment is part of the CER Heritage Corridor construction project and the values act as a reference in understanding CER as a heritage site,this paper aims to put forward a methodological guidance to identify CER’s values,so that its resources will be assessed by using what we call "value typology." In addition,it also tries to promote the tools that can help to evaluate CER’s values.On the basis of a methodological analysis,it finally puts forward some advices to integrating the value assessment into the decision-making process.

  11. Socially responsible ethnobotanical surveys in the Cape Floristic Region: ethical principles, methodology and quantification of data

    Directory of Open Access Journals (Sweden)

    Ben-Erik Van Wyk

    2012-03-01

    Full Text Available A broad overview of published and unpublished ethnobotanical surveys in the Cape Floristic Region (the traditional home of the San and Khoi communities shows that the data is incomplete. There is an urgent need to record the rich indigenous knowledge about plants in a systematic and social responsible manner in order to preserve this cultural and scientific heritage for future generations. Improved methods for quantifying data are introduced, with special reference to the simplicity and benefits of the new Matrix Method. This methodology prevents or reduces the number of false negatives, and also ensures the participation of elderly people who might be immobile. It also makes it possible to compare plant uses in different local communities. This method enables the researcher to quantify the knowledge on plant use that was preserved in a community, and to determine the relative importance of a specific plant in a more objective way. Ethical considerations for such ethnobotanical surveys are discussed, through the lens of current ethical codes and international conventions. This is an accessible approach, which can also be used in the life sciences classroom.

  12. The National Eye Survey of Trinidad and Tobago (NESTT): Rationale, Objectives and Methodology.

    Science.gov (United States)

    Braithwaite, Tasanee; Verlander, Neville Q; Bartholomew, Debra; Bridgemohan, Petra; McNally, Kevin; Roach, Allana; Sharma, Subash; Singh, Deo; Pesudovs, Konrad; Teelucksingh, Surujpal; Carrington, Christine; Ramsewak, Samuel; Bourne, Rupert

    2017-04-01

    This paper describes the rationale, study design and procedures of the National Eye Survey of Trinidad and Tobago (NESTT). The main objective of this survey is to obtain prevalence estimates of vision impairment and blindness for planning and policy development. A population-based, cross-sectional survey was undertaken using random multistage cluster sampling, with probability-proportionate-to-size methods. Eligible participants aged 5 years and older were sampled from the non-institutional population in each of 120 cluster segments. Presenting distance and near visual acuity were screened in their communities. People aged 40 years and older, and selected younger people, were invited for comprehensive clinic assessment. The interview included information on potential risk factors for vision loss, associated costs and quality of life. The examination included measurement of anthropometrics, blood glucose, refraction, ocular biometry, corneal hysteresis, and detailed assessment of the anterior and posterior segments, with photography and optical coherence tomography imaging. Adult participants were invited to donate saliva samples for DNA extraction and storage. The fieldwork was conducted over 13 months in 2013-2014. A representative sample of 10,651 individuals in 3410 households within 120 cluster segments identified 9913 people who were eligible for recruitment. The study methodology was robust and adequate to provide the first population-based estimates of the prevalence and causes of visual impairment and blindness in Trinidad and Tobago. Information was also gathered on risk factors, costs and quality of life associated with vision loss, and on normal ocular parameters for the population aged 40 years and older.

  13. Evolutionary perspectives on learning: conceptual and methodological issues in the study of adaptive specializations.

    Science.gov (United States)

    Krause, Mark A

    2015-07-01

    Inquiry into evolutionary adaptations has flourished since the modern synthesis of evolutionary biology. Comparative methods, genetic techniques, and various experimental and modeling approaches are used to test adaptive hypotheses. In psychology, the concept of adaptation is broadly applied and is central to comparative psychology and cognition. The concept of an adaptive specialization of learning is a proposed account for exceptions to general learning processes, as seen in studies of Pavlovian conditioning of taste aversions, sexual responses, and fear. The evidence generally consists of selective associations forming between biologically relevant conditioned and unconditioned stimuli, with conditioned responses differing in magnitude, persistence, or other measures relative to non-biologically relevant stimuli. Selective associations for biologically relevant stimuli may suggest adaptive specializations of learning, but do not necessarily confirm adaptive hypotheses as conceived of in evolutionary biology. Exceptions to general learning processes do not necessarily default to an adaptive specialization explanation, even if experimental results "make biological sense". This paper examines the degree to which hypotheses of adaptive specializations of learning in sexual and fear response systems have been tested using methodologies developed in evolutionary biology (e.g., comparative methods, quantitative and molecular genetics, survival experiments). A broader aim is to offer perspectives from evolutionary biology for testing adaptive hypotheses in psychological science.

  14. Methodology and issues of integral experiments selection for nuclear data validation

    Science.gov (United States)

    Tatiana, Ivanova; Ivanov, Evgeny; Hill, Ian

    2017-09-01

    Nuclear data validation involves a large suite of Integral Experiments (IEs) for criticality, reactor physics and dosimetry applications. [1] Often benchmarks are taken from international Handbooks. [2, 3] Depending on the application, IEs have different degrees of usefulness in validation, and usually the use of a single benchmark is not advised; indeed, it may lead to erroneous interpretation and results. [1] This work aims at quantifying the importance of benchmarks used in application dependent cross section validation. The approach is based on well-known General Linear Least Squared Method (GLLSM) extended to establish biases and uncertainties for given cross sections (within a given energy interval). The statistical treatment results in a vector of weighting factors for the integral benchmarks. These factors characterize the value added by a benchmark for nuclear data validation for the given application. The methodology is illustrated by one example, selecting benchmarks for 239Pu cross section validation. The studies were performed in the framework of Subgroup 39 (Methods and approaches to provide feedback from nuclear and covariance data adjustment for improvement of nuclear data files) established at the Working Party on International Nuclear Data Evaluation Cooperation (WPEC) of the Nuclear Science Committee under the Nuclear Energy Agency (NEA/OECD).

  15. Programming methodology and performance issues for advanced computer architectures. [Linear algebra

    Energy Technology Data Exchange (ETDEWEB)

    Dongarra, J.J.; Sorensen, D.C.; Connolly, K.; Patterson, J.

    1987-01-01

    This paper will describe some recent attempts to construct transportable numerical software for high performance computers. Restructuring algorithms in terms of simple linear algebra modules is reviewed. This technique has proved very successful in obtaining a high level of transportability without severe loss of performance on a wide variety of both vector and parallel computers. The use of modules to encapsulate parallelism and reduce the ratio of data movement to floating point operations has been demonstrably effective for regular problems such as those found in dense linear algebra. In other situations it may be necessary to express explicitly parallel algorithms. We also present a programming methodology that is useful for constructing new parallel algorithms which require sophisticated synchronization at a large grain level. We describe the SCHEDULE package which provides an environment for developing and analyzing explicitly parallel programs in Fortran which aare portable. This package now includes a preprocessor to achieve complete portability of user level code and also a graphics post processor for performance analysis and debugging. We discuss details of porting both the SCHEDULE package and user code. Examples from linear algebra, and partial differential equations are used to illustrate the utility of this approach.

  16. Body image in Brazil: recent advances in the state of knowledge and methodological issues

    Science.gov (United States)

    Laus, Maria Fernanda; Kakeshita, Idalina Shiraishi; Costa, Telma Maria Braga; Ferreira, Maria Elisa Caputo; Fortes, Leonardo de Sousa; Almeida, Sebastião Sousa

    2014-01-01

    OBJECTIVE To analyze Brazilian literature on body image and the theoretical and methodological advances that have been made. METHODS A detailed review was undertaken of the Brazilian literature on body image, selecting published articles, dissertations and theses from the SciELO, SCOPUS, LILACS and PubMed databases and the CAPES thesis database. Google Scholar was also used. There was no start date for the search, which used the following search terms: “body image” AND “Brazil” AND “scale(s)”; “body image” AND “Brazil” AND “questionnaire(s)”; “body image” AND “Brazil” AND “instrument(s)”; “body image” limited to Brazil and “body image”. RESULTS The majority of measures available were intended to be used in college students, with half of them evaluating satisfaction/dissatisfaction with the body. Females and adolescents of both sexes were the most studied population. There has been a significant increase in the number of available instruments. Nevertheless, numerous published studies have used non-validated instruments, with much confusion in the use of the appropriate terms (e.g., perception, dissatisfaction, distortion). CONCLUSIONS Much more is needed to understand body image within the Brazilian population, especially in terms of evaluating different age groups and diversifying the components/dimensions assessed. However, interest in this theme is increasing, and important steps have been taken in a short space of time. PMID:24897056

  17. Patterns of mammalian diversification in recent evolutionary times: global tendencies and methodological issues.

    Science.gov (United States)

    Soria-Carrasco, V; Castresana, J

    2011-12-01

    Changes in diversification patterns estimated from phylogenetic trees are an important source of information about the dynamics of evolution. To study the diversification of mammals, we reconstructed phylogenetic trees of 29 families and fitted both constant-rate and variable-rate models of diversification. In addition, we investigated the effect of clock models and phylogenetic reconstruction problems on diversification analyses. We observed, first, that none of the families increased its diversification rate during the last few million years, including the Pleistocene. Furthermore, we detected a decrease in diversification that, after application of different tests, was significant only for a minority of families. However, when diversification variation was analysed in a combined tree of all families, a global decline in diversification became significant. Therefore, although distorted by some methodological artefacts, we found an underlying signal of gradually decreasing diversification that suggests that ecological factors may have shaped the recent diversification of mammals. © 2011 The Authors. Journal of Evolutionary Biology © 2011 European Society For Evolutionary Biology.

  18. The Role of Craving in Substance Use Disorders: Theoretical and Methodological Issues.

    Science.gov (United States)

    Sayette, Michael A

    2016-01-01

    Craving is a central feature of addiction. Its recent inclusion as a diagnostic criterion for substance use disorders in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders appears at a time when craving research is at an all-time high. Craving is thought to predict relapse and may deter individuals from even trying to quit. Researchers have developed experimental craving-induction paradigms to identify factors contributing to craving and to test interventions to alleviate craving. This review offers a critique of laboratory craving studies, with particular emphasis on cigarette craving. It raises questions concerning several conceptual and methodological assumptions underlying this research, identifies processes that may explain why cravings are linked to drug use and relapse, addresses contextual factors that may influence various experiences of craving, and considers recent interventions targeting craving. The relation between craving and both emotion and coping is discussed, as well as the level of insight that individuals have about their own future cravings.

  19. Epilepsy Therapy Development: Technical and Methodological Issues in Studies with Animal Models

    Science.gov (United States)

    Galanopoulou, Aristea S.; Kokaia, Merab; Loeb, Jeffrey A.; Nehlig, Astrid; Pitkänen, Asla; Rogawski, Michael A.; Staley, Kevin J.; Whittemore, Vicky H.; Dudek, F. Edward

    2013-01-01

    SUMMARY The search for new treatments for seizures, epilepsies and their comorbidities faces considerable challenges. Partly, this is due to gaps in our understanding of the etiology and pathophysiology of most forms of epilepsy. An additional challenge is the difficulty to predict the efficacy, tolerability and impact of potential new treatments on epilepsies and comorbidities in humans, using the available resources. Here we provide a summary of the discussions and proposals of the Working Group 2 as presented in the Joint American Epilepsy Society and International League Against Epilepsy Translational Workshop in London (September 2012). We propose methodological and reporting practices that will enhance the uniformity, reliability and reporting of early stage preclinical studies with animal seizure and epilepsy models that aim to develop and evaluate new therapies for seizures or epilepsies, using multi-disciplinary approaches. The topics considered include: (a) implementation of better study design and reporting practices, (b) incorporation in the study design and analysis of covariants that may impact outcomes (including species, age, sex), (c) utilization of approaches to document target relevance, exposure and engagement by the tested treatment, (d) utilization of clinically relevant treatment protocols, (e) optimization of the use of video-EEG recordings to best meet the study goals, and (f) inclusion of outcome measures that address the tolerability of the treatment or study endpoints apart from seizures. We further discuss the different expectations for studies aiming to meet regulatory requirements to obtain approval for clinical testing in humans. Implementation of the rigorous practices discussed in this report will require considerable investment in time, funds and other research resources, which may create challenges for academic researchers seeking to contribute to epilepsy therapy discovery and development. We propose several infrastructure

  20. Epilepsy therapy development: technical and methodologic issues in studies with animal models.

    Science.gov (United States)

    Galanopoulou, Aristea S; Kokaia, Merab; Loeb, Jeffrey A; Nehlig, Astrid; Pitkänen, Asla; Rogawski, Michael A; Staley, Kevin J; Whittemore, Vicky H; Dudek, F Edward

    2013-08-01

    The search for new treatments for seizures, epilepsies, and their comorbidities faces considerable challenges. This is due in part to gaps in our understanding of the etiology and pathophysiology of most forms of epilepsy. An additional challenge is the difficulty in predicting the efficacy, tolerability, and impact of potential new treatments on epilepsies and comorbidities in humans, using the available resources. Herein we provide a summary of the discussions and proposals of the Working Group 2 as presented in the Joint American Epilepsy Society and International League Against Epilepsy Translational Workshop in London (September 2012). We propose methodologic and reporting practices that will enhance the uniformity, reliability, and reporting of early stage preclinical studies with animal seizure and epilepsy models that aim to develop and evaluate new therapies for seizures or epilepsies, using multidisciplinary approaches. The topics considered include the following: (1) implementation of better study design and reporting practices; (2) incorporation in the study design and analysis of covariants that may influence outcomes (including species, age, sex); (3) utilization of approaches to document target relevance, exposure, and engagement by the tested treatment; (4) utilization of clinically relevant treatment protocols; (5) optimization of the use of video-electroencephalography (EEG) recordings to best meet the study goals; and (6) inclusion of outcome measures that address the tolerability of the treatment or study end points apart from seizures. We further discuss the different expectations for studies aiming to meet regulatory requirements to obtain approval for clinical testing in humans. Implementation of the rigorous practices discussed in this report will require considerable investment in time, funds, and other research resources, which may create challenges for academic researchers seeking to contribute to epilepsy therapy discovery and

  1. Costs without benefits? Methodological issues in assessing costs, benefits and effectiveness of water protection policies. Paper

    Energy Technology Data Exchange (ETDEWEB)

    Walz, R.; Schleich, J.

    2000-07-01

    In the last few years, the conditions for extending environmental policy in general and policy dealing with the prevention of water pollution in particular have undergone extensive changes. On the one hand, there has been indisputable considerable success in preventing water pollution which has led to less direct pressure for policy action. On the other hand, the rising sewage levies and the lower political priority assigned in general to environmental policy documented in, e. g. public opinion surveys, has led to water pollution control policy facing very different pressures of justification: more efficient use of funds, improved planning processes, proof of the achievable benefit, but also stopping the increase in levies or not hindering economic development, these or similar slogans are the objections brought against water pollution control. Regardless of how unambiguous these terms appear when used as slogans in this way, they become diffuse and unclear if regarded more closely. This paper therefore attempts to reveal the reasons for possible misunderstandings and misinterpretations on the one hand and, on the other, to reveal the basic problems and uncertainties which are necessarily linked with an assessment of costs and benefits. In order to do this, three areas are examined: level of actors and analysis, evaluation methods and assessment of costs and benefits. (orig.)

  2. Energy balance, a new paradigm and methodological issues: the ANIBES study in Spain.

    Science.gov (United States)

    Varela Moreiras, Gregorio; Ávila, José Manuel; Ruiz, Emma

    2015-02-26

    Energy Balance (EB) is an important topic to understand how an imbalance in its main determinants (energy intake and consumption) may lead to inappropriate weight gain, considered to be "dynamic"and not "static". There are no studies to evaluate EB in Spain and new technologies reveal as key tools to solve the common problems to precisely quantify energy consumption and expenditure at population level. Within this context, the increasing complexity of the diet, but also the common problems of under and over reporting in nutrition surveys have to be taken into account. The overall purpose of the ANIBES ("Anthropometry, Intake and Energy Balance in Spain") Study was to carry out an accurate updating of foods and beverages intake, dietary habits/ behaviour and anthropometric data of the Spanish population as well as the energy expenditure and physical activity patterns, by the use of new tested instruments (i.e. tablet device to assess energy intake and accelerometer to evaluate physical activity). This new ANIBES Study will contribute to a better knowledge of the different key factors contributing to EB in Spain. Copyright AULA MEDICA EDICIONES 2015. Published by AULA MEDICA. All rights reserved.

  3. Costs without benefits? Methodological issues in assessing costs, benefits and effectiveness of water protection policies. Paper

    Energy Technology Data Exchange (ETDEWEB)

    Walz, R.; Schleich, J.

    2000-07-01

    In the last few years, the conditions for extending environmental policy in general and policy dealing with the prevention of water pollution in particular have undergone extensive changes. On the one hand, there has been indisputable considerable success in preventing water pollution which has led to less direct pressure for policy action. On the other hand, the rising sewage levies and the lower political priority assigned in general to environmental policy documented in, e. g. public opinion surveys, has led to water pollution control policy facing very different pressures of justification: more efficient use of funds, improved planning processes, proof of the achievable benefit, but also stopping the increase in levies or not hindering economic development, these or similar slogans are the objections brought against water pollution control. Regardless of how unambiguous these terms appear when used as slogans in this way, they become diffuse and unclear if regarded more closely. This paper therefore attempts to reveal the reasons for possible misunderstandings and misinterpretations on the one hand and, on the other, to reveal the basic problems and uncertainties which are necessarily linked with an assessment of costs and benefits. In order to do this, three areas are examined: level of actors and analysis, evaluation methods and assessment of costs and benefits. (orig.)

  4. Methodological Issues In Forestry Mitigation Projects: A CaseStudy Of Kolar District

    Energy Technology Data Exchange (ETDEWEB)

    Ravindranath, N.H.; Murthy, I.K.; Sudha, P.; Ramprasad, V.; Nagendra, M.D.V.; Sahana, C.A.; Srivathsa, K.G.; Khan, H.

    2007-06-01

    There is a need to assess climate change mitigationopportunities in forest sector in India in the context of methodologicalissues such as additionality, permanence, leakage, measurement andbaseline development in formulating forestry mitigation projects. A casestudy of forestry mitigation project in semi-arid community grazing landsand farmlands in Kolar district of Karnataka, was undertaken with regardto baseline and project scenariodevelopment, estimation of carbon stockchange in the project, leakage estimation and assessment ofcost-effectiveness of mitigation projects. Further, the transaction coststo develop project, and environmental and socio-economic impact ofmitigation project was assessed.The study shows the feasibility ofestablishing baselines and project C-stock changes. Since the area haslow or insignificant biomass, leakage is not an issue. The overallmitigation potential in Kolar for a total area of 14,000 ha under variousmitigation options is 278,380 tC at a rate of 20 tC/ha for the period2005-2035, which is approximately 0.67 tC/ha/yr inclusive of harvestregimes under short rotation and long rotation mitigation options. Thetransaction cost for baseline establishment is less than a rupee/tC andfor project scenario development is about Rs. 1.5-3.75/tC. The projectenhances biodiversity and the socio-economic impact is alsosignificant.

  5. Measurements of Intracellular Ca2+ Content and Phosphatidylserine Exposure in Human Red Blood Cells: Methodological Issues

    Directory of Open Access Journals (Sweden)

    Mauro C. Wesseling

    2016-06-01

    Full Text Available Background/Aims: The increase of the intracellular Ca2+ content as well as the exposure of phosphatidylserine (PS on the outer cell membrane surface after activation of red blood cells (RBCs by lysophosphatidic acid (LPA has been investigated by a variety of research groups. Carrying out experiments, which we described in several previous publications, we observed some discrepancies when comparing data obtained by different investigators within our research group and also between batches of LPA. In addition, we found differences comparing the results of double and single labelling experiments (for Ca2+ and PS. Furthermore, the results of PS exposure depended on the fluorescent dye used (annexin V-FITC versus annexin V alexa fluor® 647. Therefore, it seems necessary to investigate these methodological approaches in more detail to be able to quantify results and to compare data obtained by different research groups. Methods: The intracellular Ca2+ content and the PS exposure of RBCs separated from whole blood have been investigated after treatment with LPA (2.5 µM obtained from three different companies (Sigma-Aldrich, Cayman Chemical Company, and Santa Cruz Biotechnology Inc.. Fluo-4 and x-rhod-1 have been used to detect intracellular Ca2+ content, annexin V alexa fluor® 647 and annexin V-FITC have been used for PS exposure measurements. Both parameters (Ca2+ content, PS exposure were studied using flow cytometry and fluorescence microscopy. Results: The percentage of RBCs showing increased intracellular Ca2+ content as well as PS exposure changes significantly between different LPA manufacturers as well as on the condition of mixing of LPA with the RBC suspension. Furthermore, the percentage of RBCs showing PS exposure is reduced in double labelling compared to single labelling experiments and depends also on the fluorescent dye used. Finally, data on Ca2+ content are slightly affected whereas PS exposure data are not affected significantly

  6. Siting Study Framework and Survey Methodology for Marine and Hydrokinetic Energy Project in Offshore Southeast Florida

    Energy Technology Data Exchange (ETDEWEB)

    Vinick, Charles; Riccobono, Antonino, MS; Messing, Charles G., Ph.D.; Walker, Brian K., Ph.D.; Reed, John K., Ph.D.

    2012-02-28

    Dehlsen Associates, LLC was awarded a grant by the United States Department of Energy (DOE) Golden Field Office for a project titled 'Siting Study Framework and Survey Methodology for Marine and Hydrokinetic Energy Project in Offshore Southeast Florida,' corresponding to DOE Grant Award Number DE-EE0002655 resulting from DOE funding Opportunity Announcement Number DE-FOA-0000069 for Topic Area 2, and it is referred to herein as 'the project.' The purpose of the project was to enhance the certainty of the survey requirements and regulatory review processes for the purpose of reducing the time, efforts, and costs associated with initial siting efforts of marine and hydrokinetic energy conversion facilities that may be proposed in the Atlantic Ocean offshore Southeast Florida. To secure early input from agencies, protocols were developed for collecting baseline geophysical information and benthic habitat data that can be used by project developers and regulators to make decisions early in the process of determining project location (i.e., the siting process) that avoid or minimize adverse impacts to sensitive marine benthic habitat. It is presumed that such an approach will help facilitate the licensing process for hydrokinetic and other ocean renewable energy projects within the study area and will assist in clarifying the baseline environmental data requirements described in the U.S. Department of the Interior Bureau of Ocean Energy Management, Regulation and Enforcement (formerly Minerals Management Service) final regulations on offshore renewable energy (30 Code of Federal Regulations 285, published April 29, 2009). Because projects generally seek to avoid or minimize impacts to sensitive marine habitats, it was not the intent of this project to investigate areas that did not appear suitable for the siting of ocean renewable energy projects. Rather, a two-tiered approach was designed with the first step consisting of gaining overall insight

  7. The work of the ICRP dose calculational task group: Issues in implementation of the ICRP dosimetric methodology

    Energy Technology Data Exchange (ETDEWEB)

    Eckerman, K.F. [Oak Ridge National Lab., TN (United States)

    1999-01-01

    Committee 2 of the International Commission on Radiological Protection (ICRP) has had efforts underway to provide the radiation protection community with age-dependent dose coefficients, i.e.g, the dose per unit intake. The Task Group on Dose Calculations, chaired by the author, is responsible for the computation of these coefficients. The Task Group, formed in 1974 to produce ICRP Publication 30, is now international in its membership and its work load has been distributed among the institutions represented on the task group. This paper discusses: (1) recent advances in biokinetic modeling; (2) the recent changes in the dosimetric methodology; (3) the novel computational problems with some of the ICRP quantities; and (4) quality assurance issues which the Task Group has encountered. Potential future developments of the dosimetric framework which might strengthen the relationships with the emerging understanding of radiation risk will also be discussed.

  8. Methodological challenges in quality of life research among Turkish and Moroccan ethnic minority cancer patients: translation, recruitment and ethical issues.

    Science.gov (United States)

    Hoopman, Rianne; Terwee, Caroline B; Muller, Martin J; Ory, Ferko G; Aaronson, Neil K

    2009-06-01

    The large population of first generation Turkish and Moroccan immigrants who moved to Western Europe in the 1960s and 1970s is now reaching an age at which the incidence of chronic diseases, including cancer, rises sharply. To date, little attention has been paid to the health-related quality of life (HRQOL) of these ethnic minority groups, primarily due to the paucity of well translated and validated measures, but also because of a range of methodological and logistical barriers. The primary objective of this paper is to describe the methodological challenges in conducting HRQOL research among these patient populations, based on experience gained in a project in which four widely used HRQOL questionnaires were translated into Turkish, Moroccan-Arabic and Tarifit, and administered to a sample of 90 Turkish and 79 Moroccan cancer patients in the Netherlands. Problems encountered in translating and administering the questionnaires included achieving semantic equivalence (use of loanwords), use of numerical rating scales, lengthy questions and response scales, and culturally sensitive and/or inappropriate questions. Privacy laws that prohibit hospitals from registering the ethnicity of patients hampered efficient identification of eligible patients. Recruiting patients to studies is often difficult due to low literacy levels, lack of familiarity with and distrust of research, concerns about immigration status, and inaccurate or missing contact information. This can lead to lower response rates than is the case with the population of Dutch cancer patients. Additional ethical issues that arise in such studies concern patients' problems with communicating with their health care providers, their lack of understanding of their diagnosis, treatment and prognosis, and the potential role conflict experienced by bilingual research assistants who may wish or be asked to intervene on the patients' behalf. Practical approaches to resolving these issues are presented.

  9. Vulnerability or Sensitivity to the Environment? Methodological Issues, Trends, and Recommendations in Gene-Environment Interactions Research in Human Behavior.

    Science.gov (United States)

    Leighton, Caroline; Botto, Alberto; Silva, Jaime R; Jiménez, Juan Pablo; Luyten, Patrick

    2017-01-01

    Research on the potential role of gene-environment interactions (GxE) in explaining vulnerability to psychopathology in humans has witnessed a shift from a diathesis-stress perspective to differential susceptibility approaches. This paper critically reviews methodological issues and trends in this body of research. Databases were screened for studies of GxE in the prediction of personality traits, behavior, and mental health disorders in humans published between January 2002 and January 2015. In total, 315 papers were included. Results showed that 34 candidate genes have been included in GxE studies. Independent of the type of environment studied (early or recent life events, positive or negative environments), about 67-83% of studies have reported significant GxE interactions, which is consistent with a social susceptibility model. The percentage of positive results does not seem to differ depending on the gene studied, although publication bias might be involved. However, the number of positive findings differs depending on the population studied (i.e., young adults vs. older adults). Methodological considerations limit the ability to draw strong conclusions, particularly as almost 90% (n = 283/315) of published papers are based on samples from North America and Europe, and about 70% of published studies (219/315) are based on samples that were also used in other reports. At the same time, there are clear indications of methodological improvements over time, as is shown by a significant increase in longitudinal and experimental studies as well as in improved minimum genotyping. Recommendations for future research, such as minimum quality assessment of genes and environmental factors, specifying theoretical models guiding the study, and taking into account of cultural, ethnic, and lifetime perspectives, are formulated.

  10. Vulnerability or Sensitivity to the Environment? Methodological Issues, Trends, and Recommendations in Gene–Environment Interactions Research in Human Behavior

    Directory of Open Access Journals (Sweden)

    Caroline Leighton

    2017-06-01

    Full Text Available Research on the potential role of gene–environment interactions (GxE in explaining vulnerability to psychopathology in humans has witnessed a shift from a diathesis-stress perspective to differential susceptibility approaches. This paper critically reviews methodological issues and trends in this body of research. Databases were screened for studies of GxE in the prediction of personality traits, behavior, and mental health disorders in humans published between January 2002 and January 2015. In total, 315 papers were included. Results showed that 34 candidate genes have been included in GxE studies. Independent of the type of environment studied (early or recent life events, positive or negative environments, about 67–83% of studies have reported significant GxE interactions, which is consistent with a social susceptibility model. The percentage of positive results does not seem to differ depending on the gene studied, although publication bias might be involved. However, the number of positive findings differs depending on the population studied (i.e., young adults vs. older adults. Methodological considerations limit the ability to draw strong conclusions, particularly as almost 90% (n = 283/315 of published papers are based on samples from North America and Europe, and about 70% of published studies (219/315 are based on samples that were also used in other reports. At the same time, there are clear indications of methodological improvements over time, as is shown by a significant increase in longitudinal and experimental studies as well as in improved minimum genotyping. Recommendations for future research, such as minimum quality assessment of genes and environmental factors, specifying theoretical models guiding the study, and taking into account of cultural, ethnic, and lifetime perspectives, are formulated.

  11. A flexible methodology to integrate energy issue in strategic asset management in social housing: the ECOSIM French experience

    Energy Technology Data Exchange (ETDEWEB)

    Lacarriere, Bruno; Bourges, Bernard (Ecole des Mines de Nantes, Nantes (France)); Jallet, Paul (Le Toit Angevin, Angers (France))

    2009-07-01

    In order to improve the efforts to reduce energy use in the Social Housing sector, the IEE-ESAM project (completed in December 2008) aimed to develop adequate tools to integrate the issue of energy in strategic asset management (SAM) processes. The present work details a methodology built with the aim of a sufficient flexibility to be adaptable of the different Social Housing Operators (SHO) situations. The paper illustrates this methodology by a successful experience of development. The objective was to develop a tool satisfying the practical expectations of the Social Housing Operators. Examples of the difficulties that had to be overcome include difficulties in knowing in detail some technical properties of the housing stock (thermal properties, glazing properties, history of refurbishment) and lack of internal skills in thermal modelling to evaluate the different possible actions. The final tool developed can be used for one particular building, a set of buildings or at the whole stock scale. The tool does not use an integrated thermal calculation core but external databases and/or feedback based on experience. It offers a description of the energy performance level of the stock, points out the worst-performing elements, evaluates solutions to improve the energy performance (for building envelopes and equipments) and quantifies the gains (energy and carbon saved, financial) and the costs (investment) of these solutions. The tool assists the SHO in taking decisions (regarding priorities for investment) which include energy efficiency parameters in addition to classical SAM parameters. The success of the approach has been demonstrated by the SHO that manages the stock used as a field test for this project. They are currently using the tool developed from the methodology to plan stock investment actions.

  12. Toward Successful Implementation of Speech Recognition Technology: A Survey of SRT Utilization Issues in Healthcare Settings.

    Science.gov (United States)

    Clarke, Martina A; King, Joshua L; Kim, Min Soon

    2015-07-01

    To evaluate physician utilization of speech recognition technology (SRT) for medical documentation in two hospitals. A quantitative survey was used to collect data in the areas of practice, electronic equipment used for documentation, documentation created after providing care, and overall thoughts about and satisfaction with the SRT. The survey sample was from one rural and one urban facility in central Missouri. In addition, qualitative interviews were conducted with a chief medical officer and a physician champion regarding implementation issues, training, choice of SRT, and outcomes from their perspective. Seventy-one (60%) of the anticipated 125 surveys were returned. A total of 16 (23%) participants were practicing in internal medicine and 9 (13%) were practicing in family medicine. Fifty-six (79%) participants used a desktop and 14 (20%) used a laptop (2%) computer. SRT products from Nuance were the dominant SRT used by 59 participants (83%). Windows operating systems (Microsoft, Redmond, WA) was used by more than 58 (82%) of the survey respondents. With regard to user experience, 42 (59%) participants experienced spelling and grammatical errors, 15 (21%) encountered clinical inaccuracy, 9 (13%) experienced word substitution, and 4 (6%) experienced misleading medical information. This study shows critical issues of inconsistency, unreliability, and dissatisfaction in the functionality and usability of SRT. This merits further attention to improve the functionality and usability of SRT for better adoption within varying healthcare settings.

  13. Adolescent substance-use assessment: methodological issues in the use of the Adolescent Drug Abuse Diagnosis (ADAD).

    Science.gov (United States)

    Chinet, Léonie; Plancherel, Bernard; Bolognini, Monique; Holzer, Laurent; Halfon, Olivier

    2007-01-01

    During the past twenty years, various instruments have been developed for the assessment of substance use in adolescents, mainly in the United States. However, few of them have been adapted to, and validated in, French-speaking populations. Consequently, although increasing alcohol and drug use among teenagers has become a major concern, the various health and social programs developed in response to this specific problem have received little attention with regard to follow-up and outcome assessment. A standardized multidimensional assessment instrument adapted for adolescents is needed to assess the individual needs of adolescents and assign them to the most appropriate treatment setting, to provide a single measurement within and across health and social systems, and to conduct treatment outcome evaluations. Moreover, having an available instrument makes it possible to develop longitudinal and transcultural research studies. For this reason, a French version of the Adolescent Drug Abuse Diagnosis (ADAD) was developed and validated at the University Child and Adolescent Psychiatric Clinic in Lausanne, Switzerland. This article aims to discuss the methodological issues that we faced when using the ADAD instrument in a 4-year longitudinal study including adolescent substance users. Methodological aspects relating to the content and format of the instrument, the assessment administration and the statistical analyses are discussed.

  14. Occupational ergonomic issues in highway construction surveyed in Wisconsin, United States.

    Science.gov (United States)

    Choi, Sang D; Hudson, Lisa; Kangas, Peter; Jungen, Brett; Maple, Jennifer; Bowen, Chevon

    2007-06-01

    This study discusses the workplace ergonomic issues in highway construction, and the safe work practices associated with the prevention of ergonomic-related injuries and illnesses in the construction field. In order to achieve the study objectives, a survey was designed and sent to Wisconsin based construction contractors. To design an adequate questionnaire, the research team first conducted a pilot study. The findings from the pilot survey provided a clear direction in creating the final survey. The survey results indicated that hand and finger injuries due to cutting operations and back injuries due to the manual handling of heavy materials to be the most frequent construction task/injury combination. All of the construction firms surveyed had a safety program; however, most of the contractors did not have a site-specific ergonomics program. The construction workers were usually walking/working on the ground, ladder and scaffold, and spent significant amount of time for the manual lifting or carrying heavy materials. The findings from this study may assist safety and health professionals in the construction industry in making effective changes for improving health and productivity.

  15. Survey of ethical issues reported by Indian medical students: basis for design of a new curriculum.

    Science.gov (United States)

    Rose, Anuradha; George, Kuryan; T, Arul Dhas; Pulimood, Anna Benjamin

    2014-01-01

    Education in ethics is now a formal part of the undergraduate medical curriculum. However, most courses are structured around principles and case studies more appropriate to western countries. The cultures and practices of countries like India differ from those of western countries. It is, therefore, essential that our teaching should address the issues which are the most relevant to our setting. An anonymised, questionnaire-based, cross-sectional survey of medical students was carried out to get a picture of the ethical problems faced by students in India. The data were categorised into issues related to professional behaviour and ethical dilemmas. Unprofessional behaviour was among the issues reported as a matter of concern by a majority of the medical students. The survey highlights the need to design the curriculum in a way that reflects the structure of medical education in India, where patients are not always considered socio-culturally equal by students or the medical staff. This perspective must underpin any further efforts to address education in ethics in India.

  16. Mobile Technology Use by People Experiencing Multiple Sclerosis Fatigue: Survey Methodology

    Science.gov (United States)

    Reay, Nicholas

    2017-01-01

    Background Fatigue is one of the most commonly reported symptoms of multiple sclerosis (MS). It has a profound impact on all spheres of life, for people with MS and their relatives. It is one of the key precipitants of early retirement. Individual, group, and Internet cognitive behavioral therapy–based approaches to supporting people with MS to manage their fatigue have been shown to be effective. Objective The aim of this project was to (1) survey the types of mobile devices and level of Internet access people with MS use or would consider using for a health intervention and (2) characterize the levels of fatigue severity and their impact experienced by the people in our sample to provide an estimate of fatigue severity of people with MS in New Zealand. The ultimate goal of this work was to support the future development of a mobile intervention for the management of fatigue for people with MS. Methods Survey methodology using an online questionnaire was used to assess people with MS. A total of 51 people with MS participated. The average age was 48.5 years, and the large majority of the sample (77%) was female. Results Participants reported significant levels of fatigue as measured with the summary score of the Neurological Fatigue Index (mean 31.4 [SD 5.3]). Most (84%) respondents scored on average more than 3 on the fatigue severity questions, reflecting significant fatigue. Mobile phone usage was high with 86% of respondents reporting having a mobile phone; apps were used by 75% of respondents. Most participants (92%) accessed the Internet from home. Conclusions New Zealand respondents with MS experienced high levels of both fatigue severity and fatigue impact. The majority of participants have a mobile device and access to the Internet. These findings, along with limited access to face-to-face cognitive behavioral therapy–based interventions, create an opportunity to develop a mobile technology platform for delivering a cognitive behavioral therapy

  17. Binational Arsenic Exposure Survey: Methodology and Estimated Arsenic Intake from Drinking Water and Urinary Arsenic Concentrations

    Directory of Open Access Journals (Sweden)

    Robin B. Harris

    2012-03-01

    Full Text Available The Binational Arsenic Exposure Survey (BAsES was designed to evaluate probable arsenic exposures in selected areas of southern Arizona and northern Mexico, two regions with known elevated levels of arsenic in groundwater reserves. This paper describes the methodology of BAsES and the relationship between estimated arsenic intake from beverages and arsenic output in urine. Households from eight communities were selected for their varying groundwater arsenic concentrations in Arizona, USA and Sonora, Mexico. Adults responded to questionnaires and provided dietary information. A first morning urine void and water from all household drinking sources were collected. Associations between urinary arsenic concentration (total, organic, inorganic and estimated level of arsenic consumed from water and other beverages were evaluated through crude associations and by random effects models. Median estimated total arsenic intake from beverages among participants from Arizona communities ranged from 1.7 to 14.1 µg/day compared to 0.6 to 3.4 µg/day among those from Mexico communities. In contrast, median urinary inorganic arsenic concentrations were greatest among participants from Hermosillo, Mexico (6.2 µg/L whereas a high of 2.0 µg/L was found among participants from Ajo, Arizona. Estimated arsenic intake from drinking water was associated with urinary total arsenic concentration (p < 0.001, urinary inorganic arsenic concentration (p < 0.001, and urinary sum of species (p < 0.001. Urinary arsenic concentrations increased between 7% and 12% for each one percent increase in arsenic consumed from drinking water. Variability in arsenic intake from beverages and urinary arsenic output yielded counter intuitive results. Estimated intake of arsenic from all beverages was greatest among Arizonans yet participants in Mexico had higher urinary total and inorganic arsenic concentrations. Other contributors to urinary arsenic concentrations should be evaluated.

  18. Binational arsenic exposure survey: methodology and estimated arsenic intake from drinking water and urinary arsenic concentrations.

    Science.gov (United States)

    Roberge, Jason; O'Rourke, Mary Kay; Meza-Montenegro, Maria Mercedes; Gutiérrez-Millán, Luis Enrique; Burgess, Jefferey L; Harris, Robin B

    2012-04-01

    The Binational Arsenic Exposure Survey (BAsES) was designed to evaluate probable arsenic exposures in selected areas of southern Arizona and northern Mexico, two regions with known elevated levels of arsenic in groundwater reserves. This paper describes the methodology of BAsES and the relationship between estimated arsenic intake from beverages and arsenic output in urine. Households from eight communities were selected for their varying groundwater arsenic concentrations in Arizona, USA and Sonora, Mexico. Adults responded to questionnaires and provided dietary information. A first morning urine void and water from all household drinking sources were collected. Associations between urinary arsenic concentration (total, organic, inorganic) and estimated level of arsenic consumed from water and other beverages were evaluated through crude associations and by random effects models. Median estimated total arsenic intake from beverages among participants from Arizona communities ranged from 1.7 to 14.1 µg/day compared to 0.6 to 3.4 µg/day among those from Mexico communities. In contrast, median urinary inorganic arsenic concentrations were greatest among participants from Hermosillo, Mexico (6.2 µg/L) whereas a high of 2.0 µg/L was found among participants from Ajo, Arizona. Estimated arsenic intake from drinking water was associated with urinary total arsenic concentration (p < 0.001), urinary inorganic arsenic concentration (p < 0.001), and urinary sum of species (p < 0.001). Urinary arsenic concentrations increased between 7% and 12% for each one percent increase in arsenic consumed from drinking water. Variability in arsenic intake from beverages and urinary arsenic output yielded counter intuitive results. Estimated intake of arsenic from all beverages was greatest among Arizonans yet participants in Mexico had higher urinary total and inorganic arsenic concentrations. Other contributors to urinary arsenic concentrations should be evaluated.

  19. EEG/fMRI study of ictal and interictal epileptic activity: methodological issues and future perspectives in clinical practice.

    Science.gov (United States)

    Di Bonaventura, Carlo; Vaudano, Anna E; Carnì, Marco; Pantano, Patrizia; Nucciarelli, Valter; Garreffa, Girolamo; Maraviglia, Bruno; Prencipe, Massimiliano; Bozzao, Luigi; Manfredi, Mario; Giallonardo, Anna T

    2006-01-01

    Electroencephalography/functional magnetic resonance imaging (EEG/fMRI) has been proposed recently as a tool to study electrophysiological activity and, consequently, detect brain regions activated during epileptiform EEG abnormalities. The purpose of the study was to review our two-year experience with studying ictal and interictal activities in patients with epilepsy. Using EEG/fMRI, we studied hemodynamic changes associated with ictal and interictal EEG abnormalities in 43 patients with partial (31 cases) or generalized (12 cases) epilepsy. Using two different paradigms (block design and event-related design), we studied several forms of EEG activity consisting of (i) interictal abnormalities constantly elicitable by specific stimulation (8 cases); (ii) focal and generalized interictal activity, such as focal spikes or typical and atypical generalized spike-and-wave discharges (18 cases); and (iii) focal and generalized ictal electro-clinical activity, such as tonic seizures or pseudo-absences in frontal lobe epilepsy, typical absences in idiopathic generalized epilepsy, complex partial seizures in temporal lobe epilepsy, and perisylvian seizures in special syndromes (17 patients). EEG/fMRI revealed clear hemodynamic changes related to EEG abnormalities in 21 patients. In 18 of these patients, the changes were highly concordant with electro-clinical findings. In the remaining 22 patients, fMRI analysis data failed to show activation or deactivation clusters, probably owing either to lack or inadequate amount of temporal distribution of abnormal EEG activity, or to intrinsic methodological problems. By defining the electro-clinical and hemodynamic correlates of EEG activity, fMRI may shed light on the neurophysiological mechanisms underlying epileptic phenomena. However, as several methodological issues have yet to be addressed, further studies are warranted to assess the reliability and usefulness of EEG/fMRI in clinical practice.

  20. Cluster randomized trials utilizing primary care electronic health records: methodological issues in design, conduct, and analysis (eCRT Study).

    Science.gov (United States)

    Gulliford, Martin C; van Staa, Tjeerd P; McDermott, Lisa; McCann, Gerard; Charlton, Judith; Dregan, Alex

    2014-06-11

    There is growing interest in conducting clinical and cluster randomized trials through electronic health records. This paper reports on the methodological issues identified during the implementation of two cluster randomized trials using the electronic health records of the Clinical Practice Research Datalink (CPRD). Two trials were completed in primary care: one aimed to reduce inappropriate antibiotic prescribing for acute respiratory infection; the other aimed to increase physician adherence with secondary prevention interventions after first stroke. The paper draws on documentary records and trial datasets to report on the methodological experience with respect to research ethics and research governance approval, general practice recruitment and allocation, sample size calculation and power, intervention implementation, and trial analysis. We obtained research governance approvals from more than 150 primary care organizations in England, Wales, and Scotland. There were 104 CPRD general practices recruited to the antibiotic trial and 106 to the stroke trial, with the target number of practices being recruited within six months. Interventions were installed into practice information systems remotely over the internet. The mean number of participants per practice was 5,588 in the antibiotic trial and 110 in the stroke trial, with the coefficient of variation of practice sizes being 0.53 and 0.56 respectively. Outcome measures showed substantial correlations between the 12 months before, and after intervention, with coefficients ranging from 0.42 for diastolic blood pressure to 0.91 for proportion of consultations with antibiotics prescribed, defining practice and participant eligibility for analysis requires careful consideration. Cluster randomized trials may be performed efficiently in large samples from UK general practices using the electronic health records of a primary care database. The geographical dispersal of trial sites presents a difficulty for

  1. Estimating prevalence and burden of major disorders of the brain in Nepal: cultural, geographic, logistic and philosophical issues of methodology.

    Science.gov (United States)

    Risal, Ajay; Manandhar, Kedar; Steiner, Timothy J; Holen, Are; Koju, Rajendra; Linde, Mattias

    2014-08-15

    Headache, anxiety and depression are major disorders of the brain in terms of their prevalence and the burdens and costs they impose on society. Nationwide population-based studies of these disorders are necessary to inform health policy but, in research-naïve and resource-poor countries such as Nepal, a host of methodological problems are encountered: cultural, geographic, logistic and philosophical. Expert consensus was sought among researchers from different professional and cultural backgrounds in planning and conceptualizing an epidemiological study and adapting established methods to the special situation and circumstances of Nepal. The methodological problems were sorted into different themes: study design; climate; geography, access and transport; sociocultural issues; safety of interviewers. Each of these was dealt with separately, and their inter-relationships explored, in finding solutions that were sometimes pragmatic. A cross-sectional questionnaire-based study, with teams of interviewers visiting households across the three physiographic divisions (with extremes in altitude) in each of the five development regions of the country, would enable national sampling with sociocultural representativeness. However, the study instruments and interviews would be in Nepali only. Transport and access challenges were considerable, and their solutions combined travel by air, bus, river and foot, with allowances for rain-damaged roads, collapsed bridges and cancelled scheduled flights. The monsoon would render many routes impassable, and therefore set an absolute time limitation. Engaging participants willingly in the enquiry would be the key to success, and several tactics would be employed to enhance the success of this, most importantly enlisting the support of local community volunteers in each study site. Anticipating problems in advance of investing substantial resources in a large nationwide epidemiological study in Nepal was a sensible precaution. The

  2. Issues and considerations in the use of serologic biomarkers for classifying vaccination history in household surveys.

    Science.gov (United States)

    MacNeil, Adam; Lee, Chung-Won; Dietz, Vance

    2014-09-03

    Accurate estimates of vaccination coverage are crucial for assessing routine immunization program performance. Community based household surveys are frequently used to assess coverage within a country. In household surveys to assess routine immunization coverage, a child's vaccination history is classified on the basis of observation of the immunization card, parental recall of receipt of vaccination, or both; each of these methods has been shown to commonly be inaccurate. The use of serologic data as a biomarker of vaccination history is a potential additional approach to improve accuracy in classifying vaccination history. However, potential challenges, including the accuracy of serologic methods in classifying vaccination history, varying vaccine types and dosing schedules, and logistical and financial implications must be considered. We provide historic and scientific context for the potential use of serologic data to assess vaccination history and discuss in detail key areas of importance for consideration in the context of using serologic data for classifying vaccination history in household surveys. Further studies are needed to directly evaluate the performance of serologic data compared with use of immunization cards or parental recall for classification of vaccination history in household surveys, as well assess the impact of age at the time of sample collection on serologic titers, the predictive value of serology to identify a fully vaccinated child for multi-dose vaccines, and the cost impact and logistical issues on outcomes associated with different types of biological samples for serologic testing.

  3. Food safety issues and information needs: an online survey of public health inspectors.

    Science.gov (United States)

    Pham, Mai T; Jones, Andria Q; Dewey, Catherine E; Sargeant, Jan M; Marshall, Barbara J

    2012-06-01

    In the study described in this article, the authors investigated the perceptions and needs of public health inspectors (PHIs) in the province of Ontario, Canada, with regard to food safety issues and information resources. A cross-sectional online survey of 239 Ontario PHIs was conducted between April and June 2009. Questions pertained to their perceptions of key food safety issues and foodborne pathogens, knowledge confidence, available resources, and resource needs. All respondents rated time-temperature abuse, inadequate hand washing, and cross contamination as important food safety issues. Salmonella, Campylobacter, and E. coli O157:H7 were pathogens reported to be of concern to 95% of respondents (221/233). Most respondents indicated that they were confident in their knowledge of food safety issues and foodborne pathogens, but wanted a central, online resource for food safety information and ongoing food safety education training for PHIs. The data from the authors' study can be used in the development of information resources targeted to the needs of PHIs involved in food safety.

  4. The Crossmatch/Issue Ratio:  Use of a Novel Quality Indicator and Results of an International Survey on RBC Crossmatching and Issuing Practices

    DEFF Research Database (Denmark)

    Yazer, Mark H; Alcantara, Ramir; Beizai, Pouneh

    2016-01-01

    OBJECTIVES: To understand the worldwide scope of RBC crossmatching and issuing practices and measure efficiency using a novel quality indicator, the crossmatch/issue (C/I) ratio. METHODS: An electronic survey was disseminated to hospital transfusion services collecting details about RBC....... 1.35 ± 0.36, respectively; P = .19). CONCLUSIONS: Electronic crossmatching is common, and the C/I ratio can be an indicator of efficiency....

  5. Influenza knowledge, attitude, and behavior survey for grade school students: design and novel assessment methodology.

    Science.gov (United States)

    Koep, Tyler H; Huskins, W Charles; Clemens, Christal; Jenkins, Sarah; Pierret, Chris; Ekker, Stephen C; Enders, Felicity T

    2014-12-01

    Despite the fact infectious diseases can spread readily in grade schools, few studies have explored prevention in this setting. Additionally, we lack valid tools for students to self-report knowledge, attitudes, and behaviors. As part of an ongoing study of a curriculum intervention to promote healthy behaviors, we developed and evaluated age-appropriate surveys to determine students' understanding of influenza prevention. Surveys were adapted from adolescent and adult influenza surveys and administered to students in grades 2-5 (ages 7-11) at two Rochester public schools. We assessed student understanding by analyzing percent repeatability of 20 survey questions and compared percent "don't know" (DK) responses across grades, gender, and race. Questions thought to be ambiguous after early survey administration were investigated in student focus groups, modified as appropriate, and reassessed. The response rate across all surveys was >87%. Survey questions were well understood; 16 of 20 questions demonstrated strong pre/post repeatability (>70%). Only 1 question showed an increase in DK response for higher grades (p survey questions and improved measures of understanding in the final survey administration. Grade-school students' knowledge, attitudes and behavior toward influenza prevention can be assessed using surveys. Quantitative and qualitative analysis may be used to assess participant understanding and refine survey development for pediatric survey instruments. These methods may be used to assess the repeatability and validity of surveys to assess the impact of health education interventions in young children.

  6. Can citizen science produce good science? Testing the OPAL Air Survey methodology, using lichens as indicators of nitrogenous pollution.

    Science.gov (United States)

    Tregidgo, Daniel J; West, Sarah E; Ashmore, Mike R

    2013-11-01

    Citizen science is having increasing influence on environmental monitoring as its advantages are becoming recognised. However methodologies are often simplified to make them accessible to citizen scientists. We tested whether a recent citizen science survey (the OPAL Air Survey) could detect trends in lichen community composition over transects away from roads. We hypothesised that the abundance of nitrophilic lichens would decrease with distance from the road, while that of nitrophobic lichens would increase. The hypothesised changes were detected along strong pollution gradients, but not where the road source was relatively weak, or background pollution relatively high. We conclude that the simplified OPAL methodology can detect large contrasts in nitrogenous pollution, but it may not be able to detect more subtle changes in pollution exposure. Similar studies are needed in conjunction with the ever-growing body of citizen science work to ensure that the limitations of these methods are fully understood.

  7. Neurobehavioral Deficits and Parkinsonism in Occupations with Manganese Exposure: A Review of Methodological Issues in the Epidemiological Literature

    Directory of Open Access Journals (Sweden)

    Robert M. Park

    2013-09-01

    Full Text Available Exposure to manganese (Mn is associated with neurobehavioral effects. There is disagreement on whether commonly occurring exposures in welding, ferroalloy, and other industrial processes produce neurologically significant neurobehavioral changes representing parkinsonism. A review of methodological issues in the human epidemiological literature on Mn identified: (1 studies focused on idiopathic Parkinson disease without considering manganism, a parkinsonian syndrome; (2 studies with healthy worker effect bias; (3 studies with problematic statistical modeling; and (4 studies arising from case series derived from litigation. Investigations with adequate study design and exposure assessment revealed consistent neurobehavioral effects and attributable subclinical and clinical signs and symptoms of impairment. Twenty-eight studies show an exposure-response relationship between Mn and neurobehavioral effects, including 11 with continuous exposure metrics and six with three or four levels of contrasted exposure. The effects of sustained low-concentration exposures to Mn are consistent with the manifestations of early manganism, i.e., consistent with parkinsonism. This is compelling evidence that Mn is a neurotoxic chemical and there is good evidence that Mn exposures far below the current US standard of 5.0 mg/m3 are causing impairment.

  8. Assessing antiretroviral adherence via electronic drug monitoring and self-report: an examination of key methodological issues.

    Science.gov (United States)

    Pearson, Cynthia R; Simoni, Jane M; Hoff, Peter; Kurth, Ann E; Martin, Diane P

    2007-03-01

    We explored methodological issues related to antiretroviral adherence assessment, using 6 months of data collected in a completed intervention trial involving 136 low-income HIV-positive outpatients in the Bronx, NY. Findings suggest that operationalizing adherence as a continuous (versus dichotomous) variable and averaging adherence estimates over multiple assessment points (versus using only one) explains greater variance in HIV-1 RNA viral load (VL). Self-reported estimates provided during a phone interview accounted for similar variance in VL as EDM estimates (R (2) = .17 phone versus .18 EDM). Self-reported adherence was not associated with a standard social desirability measure, and no difference in the accuracy of self-report adherence was observed for assessment periods of 1-3 days. Self-reported poor adherence was more closely associated with EDM adherence estimates than self-reported moderate and high adherence. On average across assessment points, fewer than 4% of participants who reported taking a dose of an incorrect amount of medication.

  9. Responses to GM food content in context with food integrity issues: results from Australian population surveys.

    Science.gov (United States)

    Mohr, Philip; Golley, Sinéad

    2016-01-25

    This study examined community responses to use of genetically modified (GM) content in food in the context of responses to familiar food additives by testing an empirically and theoretically derived model of the predictors of responses to both GM content and food integrity issues generally. A nationwide sample of 849 adults, selected at random from the Australian Electoral Roll, responded to a postal Food and Health Survey. Structural equation modelling analyses confirmed that ratings of general concern about food integrity (related to the presence of preservatives and other additives) strongly predicted negativity towards GM content. Concern about food integrity was, in turn, predicted by environmental concern and health engagement. In addition, both concern about food integrity generally and responses to GM content specifically were weakly predicted by attitudes to benefits of science and an intuitive (i.e., emotionally-based) reasoning style. Data from a follow-up survey conducted under the same conditions (N=1184) revealed that ratings of concern were significantly lower for use of genetic engineering in food than for four other common food integrity issues examined. Whereas the question of community responses to GM is often treated as a special issue, these findings support the conclusion that responses to the concept of GM content in food in Australia are substantially a specific instance of a general sensitivity towards the integrity of the food supply. They indicate that the origins of responses to GM content may be largely indistinguishable from those of general responses to preservatives and other common food additives. Copyright © 2015 Elsevier B.V. All rights reserved.

  10. QUESTIONNAIRE SURVEY ON CRANIOMANDIBULAR DISORDER ISSUES IN STUDENTS' AND POST-GRADUATE TRAINING IN BULGARIA.

    Directory of Open Access Journals (Sweden)

    Mariana Dimova

    2015-03-01

    Full Text Available The prevalence of craniomandibular disorders (CMD among the Bulgarian population as well as the risk factors for unlocking bruxism and bruxomania mechanisms pose a demand for education on these issues reflecting modern science. The authors' aim is to examine the subjective assessment of participants in “DAYS OF PROSTHETICS, Sofia, 15 -16 March 2014”, regarding: 1.Prevelance of CMD in the country; 2. Education and training of students and post-graduates in the issues related to diagnostics and treatment of craniomandibular disorders; 3. Theoretical background for successful treatment of patients with bruxism and bruxomania. Materials and methods: For the purpose of the present research 192 participants have been surveyed - among them 163 are dentists and 29 are students in the 4th and 5th year of study. The survey feedback has been obtained via an anonymous questionnaire consisting of 8 questions targeted at dentists' assessment of CMD prevalence and distribution, training in CMD issues in Bulgaria and the treatment of patients with bruxism and bruxomania. The results obtained indicate that 84.0% - 93.1% (95% CI of respondents, working as dentists in the country, expressed the view that students' curriculum lacks an overall concept for training them in the diagnostics and treatment of CMD. 79.6% - 90.2% (95% CI of participants, dentists in the country, define post-graduate training in CMD as insufficient or lacking. Conclusion: The development and promotion of a working platform for early screening, diagnostics and treatment of CMD for timely referral to a specialized treatment is necessary and expected by the professional community in our country.

  11. A Study of Current Trends and Issues for Graphics Education: Results from a Five-Year Follow-Up Survey

    Science.gov (United States)

    Clark, Aaron C.; Scales, Alice Y.

    2006-01-01

    During the 1998-1999 academic year, a survey was conducted to look at current trends and issues in the profession of graphics education (Clark & Scales, 1999). The survey solicited information from the membership of the Engineering Design Graphics Division of the American Society for Engineering Education related to their view of future areas of…

  12. Internet snapshot survey: A novel methodology to monitor novel psychotropic substances and its need in Asia.

    Science.gov (United States)

    Mahapatra, Ananya; Sharma, Pawan

    2016-06-01

    Recently there has been upsurge in the use of novel psychoactive substances, commonly known as legal highs. There is limited data available on the use and availability of these substances. Internet snapshot methodology has been successfully used in Europe and America to understand rapidly adapting internet based drug market but no data is available from Asian region. Hence there is need of application of similar methodology in Asia to explore and gauge the problem statement about these substances.

  13. Theoretical and Methodological Issues with Testing the SCCT and RIASEC Models: Comment on Lent, Sheu, and Brown (2010) and Lubinski (2010)

    Science.gov (United States)

    Armstrong, Patrick Ian; Vogel, David L.

    2010-01-01

    The current article replies to comments made by Lent, Sheu, and Brown (2010) and Lubinski (2010) regarding the study "Interpreting the Interest-Efficacy Association From a RIASEC Perspective" (Armstrong & Vogel, 2009). The comments made by Lent et al. and Lubinski highlight a number of important theoretical and methodological issues, including the…

  14. Methodology of Correcting Nonresponse Bias: Introducing Another Bias? The Case of the Swiss Innovation Survey 2002

    OpenAIRE

    Sydow, Nora

    2006-01-01

    The non-response in a survey can lead to severe bias. In order to manage this problem, it is usual to make a second survey by a sample of non-respondent. This allows us to test if there is a significant difference in the key variables of the survey between respondents and nonrespondents and, if yes, to take it into account. But, the risk is great to introduce another bias depending on the mode (mail vs phone) of survey. The KOF industrial economics group is exploring for many years the innova...

  15. Identifying Key Issues and Potential Solutions for Integrated Arrival, Departure, Surface Operations by Surveying Stakeholder Preferences

    Science.gov (United States)

    Aponso, Bimal; Coppenbarger, Richard A.; Jung, Yoon; Quon, Leighton; Lohr, Gary; O’Connor, Neil; Engelland, Shawn

    2015-01-01

    NASA's Aeronautics Research Mission Directorate (ARMD) collaborates with the FAA and industry to provide concepts and technologies that enhance the transition to the next-generation air-traffic management system (NextGen). To facilitate this collaboration, ARMD has a series of Airspace Technology Demonstration (ATD) sub-projects that develop, demonstrate, and transitions NASA technologies and concepts for implementation in the National Airspace System (NAS). The second of these sub-projects, ATD-2, is focused on the potential benefits to NAS stakeholders of integrated arrival, departure, surface (IADS) operations. To determine the project objectives and assess the benefits of a potential solution, NASA surveyed NAS stakeholders to understand the existing issues in arrival, departure, and surface operations, and the perceived benefits of better integrating these operations. NASA surveyed a broad cross-section of stakeholders representing the airlines, airports, air-navigation service providers, and industry providers of NAS tools. The survey indicated that improving the predictability of flight times (schedules) could improve efficiency in arrival, departure, and surface operations. Stakeholders also mentioned the need for better strategic and tactical information on traffic constraints as well as better information sharing and a coupled collaborative planning process that allows stakeholders to coordinate IADS operations. To assess the impact of a potential solution, NASA sketched an initial departure scheduling concept and assessed its viability by surveying a select group of stakeholders for a second time. The objective of the departure scheduler was to enable flights to move continuously from gate to cruise with minimal interruption in a busy metroplex airspace environment using strategic and tactical scheduling enhanced by collaborative planning between airlines and service providers. The stakeholders agreed that this departure concept could improve schedule

  16. The Modernization Concept as an Integrative Framework for the Methodology of Studying Topical Issues in Russian History

    Directory of Open Access Journals (Sweden)

    Yuri N. Smirnov

    2016-10-01

    Full Text Available The article is devoted to a number of methodological and concrete historical questions raised in the monograph by Boris Mironov, “The Russian Empire: From Tradition to Modernity.” The monograph is based on the modernization concept. The variety of methods and techniques borrowed by the author from different scientific disciplines and schools, but which demonstrate their usefulness, provide a reason to call his approach “integrative.” Smirnov shares Mironov’s perspective on the possibility of determining the laws of Russia’s historical path, and on the positive prospects for Russia’s movement upon it. Particular attention is paid to how Mironov examines and interprets the course of Russian colonization, its influence on the internal processes in society in general, and on the fate of specific regions and the ethnic groups. In Mironov’s opinion, the inclusion of new lands in Russia has had generally beneficial effects for the country as a whole and for the people who inhabit it. Smirnov engages in a thought experiment in order to assess in how far Mironov’s conclusions are applicable to the southeast of Russia. The results prove the validity of the conclusions and their applicability to research of other colonized territories. The reviewer recognizes as valid the opinion that the economic reserves of serfdom had not been exhausted by the middle of the 19th century. The liberation of the peasants was caused by many factors, among which moral and cultural reasons were not in the last place. The imperial “Enlightened” bureaucracy became the leader of peasant and other reforms. The article expressed disagreement that the strengthening of the position of the nobility and their power over the peasants in the 18th century was determined by the decisive role of the guard in palace coups. Mironov’s book will stimulate new research and discussions on topical issues of Russian history.

  17. Comparing econometric and survey-based methodologies in measuring offshoring: The Danish experience

    DEFF Research Database (Denmark)

    Refslund, Bjarke

    2016-01-01

    such as the national or regional level. Most macro analyses are based on proxies and trade statistics with limitations. Drawing on unique Danish survey data, this article demonstrates how survey data can provide important insights into the national scale and impacts of offshoring, including changes of employment...

  18. INTEGRATED SURVEY FOR ARCHITECTURAL RESTORATION: A METHODOLOGICAL COMPARISON OF TWO CASE STUDIES

    Directory of Open Access Journals (Sweden)

    G. Bianchi

    2016-06-01

    Full Text Available A preliminary survey campaign is essential in projects of restoration, urban renewal, rebuilding or promotion of architectural heritage. Today several survey techniques allow full 3D object restitution and modelling that provides a richer description than simple 2D representations. However, the amount of data to collect increases dramatically and a trade-off between efficiency and productivity from one side and assuring accuracy and completeness of the results on the other must be found. Depending on the extent and the complexity of the task, a single technique or a combination of several ones might be employed. Especially when documentation at different scales and with different levels of detail are foreseen, the latter will likely be necessary. The paper describes two architectural surveys in Italy: the old village of Navelli (AQ, affected by the earthquake in 2009, and the two most relevant remains in Codiponte (MS, damaged by the earthquake in 2013, both in the context of a project of restoration and conservation. In both sites, a 3D survey was necessary to represent effectively the objects. An integrated survey campaign was performed in both cases, which consists of a GPS network as support for georeferencing, an aerial survey and a field survey made by laser scanner and close range photogrammetry. The two case studies, thanks to their peculiarities, can be taken as exemplar to wonder if the integration of different surveying techniques is today still mandatory or, considering the technical advances of each technology, it is in fact just optional.

  19. Integrated Survey for Architectural Restoration: a Methodological Comparison of Two Case Studies

    Science.gov (United States)

    Bianchi, G.; Bruno, N.; Dall'Asta, E.; Forlani, G.; Re, C.; Roncella, R.; Santise, M.; Vernizzi, C.; Zerbi, A.

    2016-06-01

    A preliminary survey campaign is essential in projects of restoration, urban renewal, rebuilding or promotion of architectural heritage. Today several survey techniques allow full 3D object restitution and modelling that provides a richer description than simple 2D representations. However, the amount of data to collect increases dramatically and a trade-off between efficiency and productivity from one side and assuring accuracy and completeness of the results on the other must be found. Depending on the extent and the complexity of the task, a single technique or a combination of several ones might be employed. Especially when documentation at different scales and with different levels of detail are foreseen, the latter will likely be necessary. The paper describes two architectural surveys in Italy: the old village of Navelli (AQ), affected by the earthquake in 2009, and the two most relevant remains in Codiponte (MS), damaged by the earthquake in 2013, both in the context of a project of restoration and conservation. In both sites, a 3D survey was necessary to represent effectively the objects. An integrated survey campaign was performed in both cases, which consists of a GPS network as support for georeferencing, an aerial survey and a field survey made by laser scanner and close range photogrammetry. The two case studies, thanks to their peculiarities, can be taken as exemplar to wonder if the integration of different surveying techniques is today still mandatory or, considering the technical advances of each technology, it is in fact just optional.

  20. Female Under-Representation in Computing Education and Industry - A Survey of Issues and Interventions

    Directory of Open Access Journals (Sweden)

    Joseph Osunde

    2014-10-01

    Full Text Available This survey paper examines the issue of female under-representation in computing education and industry, which has been shown from empirical studies to be a problem for over two decades. While various measures and intervention strategies have been implemented to increase the interest of girls in computing education and industry, the level of success has been discouraging. The primary contribution of this paper is to provide an analysis of the extensive research work in this area. It outlines the progressive decline in female representation in computing education. It also presents the key arguments that attempt to explain the decline and intervention strategies. We conclude that there is a need to further explore strategies that will encourage young female learners to interact more with computer educational games.

  1. Methodological issues in cohort studies that relate sodium intake to cardiovascular disease outcomes: a science advisory from the American Heart Association.

    Science.gov (United States)

    Cobb, Laura K; Anderson, Cheryl A M; Elliott, Paul; Hu, Frank B; Liu, Kiang; Neaton, James D; Whelton, Paul K; Woodward, Mark; Appel, Lawrence J

    2014-03-11

    The results of cohort studies relating sodium (Na) intake to blood pressure-related cardiovascular disease (CVD) are inconsistent. To understand whether methodological issues account for the inconsistency, we reviewed the quality of these studies. We reviewed cohort studies that examined the association between Na and CVD. We then identified methodological issues with greatest potential to alter the direction of association (reverse causality, systematic error in Na assessment), some potential to alter the direction of association (residual confounding, inadequate follow-up), and the potential to yield false null results (random error in Na assessment, insufficient power). We included 26 studies with 31 independent analyses. Of these, 13 found direct associations between Na and CVD, 8 found inverse associations, 2 found J-shaped associations, and 8 found null associations only. On average there were 3 to 4 methodological issues per study. Issues with greater potential to alter the direction of association were present in all but 1 of the 26 studies (systematic error, 22; reverse causality, 16). Issues with lesser potential to alter the direction of association were present in 18 studies, whereas those with potential to yield false null results were present in 23. Methodological issues may account for the inconsistent findings in currently available observational studies relating Na to CVD. Until well-designed cohort studies in the general population are available, it remains appropriate to base Na guidelines on the robust body of evidence linking Na with elevated blood pressure and the few existing general population trials of the effects of Na reduction on CVD.

  2. Environmental and production survey methodology to estimate severity and extent of aquaculture impact in three areas of the Philippines

    Directory of Open Access Journals (Sweden)

    Rune Palerud

    2008-12-01

    Full Text Available The project “Environmental Monitoring and Modelling of Aquaculture in the Philippines” known as EMMA, was undertaken by the National Integrated Fisheries Technology Development Centre (NIFTDC of the Bureau of Fisheries and Aquatic Resources (BFAR and Akvaplan-niva AS of Tromsø, Norway. The project was funded by the Norwegian Agency for Development Cooperation (NORAD. This project tested survey equipment for the monitoring of aquaculture impact to the water column and sediment. Baseline surveys were undertaken as the goal of the study was to develop suitable aquaculture monitoring techniques and adapt predictive models to assist in identifying risk areas for aquaculture and allow planned development of sustainable aquaculture. Three different locations were chosen as case studies - Bolinao, Pangasinan (marine site, Dagupan (brackish water site, and Taal Lake (freshwater site. Production surveys were also undertaken to estimate production and nutrient outputs to the water bodies in order to be able to link aquaculture production with severity and extent of impacts. Different methodologies for the estimation of production were tested to find a cost effective and accurate methodology.

  3. Wildlife survey protocols for wind energy projects : dealing with regional and national issues

    Energy Technology Data Exchange (ETDEWEB)

    D' Entremont, M.; Ebner, D. [Jacques Whitford AXYS Ltd., Burnaby, BC (Canada)

    2008-07-01

    Wildlife surveys in Canada vary according to jurisdictional influences, regional species, and the location of potential wind power projects. This presentation discussed environmental assessment (EA) approaches to wind energy used by Jacques Whitford, a Canadian environmental engineering consultancy firm. EA legislation in Canada has both federal and provincial components. Environmental impacts that must be considered by wind power proponents include mortality risk; habitat availability; effects on breeding and migration; and risks to other wildlife. Measuring the effects of wind energy projects on wildlife is often difficult. Baseline surveys are used to support environmental assessments. Constraints analysis is used to assist with project siting and planning as well as to provide information needed for decision-making. Issues identified in the scoping phases of environmental assessments are then used to assess the amount of information needed. It was concluded that national and regional reviews can be used to build a knowledge base of regional ecosystems, as federal wildlife protocol requirements are applied differently across the country. Best practice and environmental assessment strategies for each province in Canada were included, and wildlife protocols were reviewed. tabs., figs.

  4. PKI Scalability Issues

    OpenAIRE

    Slagell, Adam J; Bonilla, Rafael

    2004-01-01

    This report surveys different PKI technologies such as PKIX and SPKI and the issues of PKI that affect scalability. Much focus is spent on certificate revocation methodologies and status verification systems such as CRLs, Delta-CRLs, CRS, Certificate Revocation Trees, Windowed Certificate Revocation, OCSP, SCVP and DVCS.

  5. The Common Topoi of STEM Discourse: An Apologia and Methodological Proposal, with Pilot Survey

    Science.gov (United States)

    Walsh, Lynda

    2010-01-01

    In this article, the author proposes a methodology for the rhetorical analysis of scientific, technical, mathematical, and engineering (STEM) discourse based on the common topics (topoi) of this discourse. Beginning with work by Miller, Prelli, and other rhetoricians of STEM discourse--but factoring in related studies in cognitive linguistics--she…

  6. Mapas cognitivos e a pesquisa organizacional: explorando aspectos metodológicos Cognitive maps and organizational research: exploring methodological issues

    Directory of Open Access Journals (Sweden)

    Antonio Virgílio Bittencourt Bastos

    2002-01-01

    Full Text Available A intersecção entre as ciências da cognição e os estudos organizacionais criou um campo emergente de pesquisa denominado cognição organizacional. Tal campo se apóia em uma visão de organização como processos socialmente construídos que, de forma recorrente, articulam atores em interação. Assim, grande ênfase é dada ao papel das cognições dos atores como mediadoras de importantes processos e produtos organizacionais, em seus diferentes níveis. Os mapas cognitivos, nesse domínio, têm sido crescentemente utilizados como ferramentas para representar estruturas e processos cognitivos que ajudam a compreender decisões e ações que configuram uma organização. O presente texto, apoiado em uma revisão da literatura, após localizar as tendências no campo que justificam o uso dos mapas cognitivos, procura caracterizá-los, especialmente no tocante às decisões metodológicas que configuram seus diferentes tipos. Como conclusão, discutem-se os limites e potencialidades dos mapas cognitivos como ferramentas de pesquisa de processos organizacionais.The intersection between cognitive sciences and organizational studies has created a new field of research called organizational cognition. Research in this field is based on a view of organizational processes as the result of social constructions - the exchange and articulation of ideas among those involved in the organization. Thus, a great emphasis is given to the role of the actor's cognitions, which mediate important organizational processes and products. Cognitive maps have been increasingly used in this domain as tools to represent the cognitive structures and processes that help to understand the decisions and actions that define an organization. The present text first identifies the research objectives that justify the use of cognitive maps, then characterizes these tools based on the methodological issues that differentiate among various approaches. The third and final topic

  7. A methodological approach to comparing pros and cons of delocalizing villages: socio-economic and technical issues

    Science.gov (United States)

    Guadagno, Eleonora; Iovine, Giulio G. R.; Petrucci, Olga; Forciniti, Pinuccia R.

    2014-05-01

    Cavallerizzo have been analysed within the frame of a PhD thesis by one of the authors. The present study focuses on the Cavallerizzo case study to discuss a methodological approach useful to comparing pros and cons of delocalizing villages, aiming at properly considering socio-economic effects in addition to technical issues.

  8. Determining issues of importance for the evaluation of quality of life and patient-reported outcomes in breast cancer: results of a survey of 1072 patients.

    Science.gov (United States)

    Hollen, Patricia J; Msaouel, Pavlos; Gralla, Richard J

    2015-06-01

    Identifying key issues for patients is central to assessing treatment for cancer, especially when evaluating health-related quality of life (QL) and patient-reported outcomes (PROs). This study was conducted to provide enhanced content validity support by incorporating the views of a large number of patients with breast cancer. This methodological study used an anonymous, cross-sectional, electronic web-based survey of 1072 patients with a diagnosis of breast cancer. Patients ranked the importance of 21 issues on a 5-point scale. Issues included general, physical, functional, psychosocial, and summative items. Analysis was also performed by four key factors (age group, time since diagnosis, adjuvant treatment or not, and tumor extent). All of the top five issues rated as either "very important" or "important" were global issues-rather than symptoms-such as maintaining quality of life (ranked in these two highest categories by 99 % of patients), maintaining independence (97 %), and ability to perform normal activities (97 %). The abilities to concentrate and to be able to sleep (97 and 96 %, respectively) were ranked above specific breast cancer symptoms. Specific symptoms included within the top ten highest ranked items were fatigue, depression, anxiety, shortness of breath, and pain. This is the largest analysis of evidence-based data determining support for content validity for QL and PROs provided by patients with breast cancer. While symptoms are important to patients, the survey also demonstrates that PRO measures that only evaluate symptoms are not fully responding to patient-expressed needs. These results provide confidence in the content of quality of life measures for large groups of patients with breast cancer, including the new Breast Cancer Symptom Scale (BCSS) questionnaire.

  9. Doctoral Training in Statistics, Measurement, and Methodology in Psychology: Replication and Extension of Aiken, West, Sechrest, and Reno's (1990) Survey of PhD Programs in North America

    Science.gov (United States)

    Aiken, Leona S.; West, Stephen G.; Millsap, Roger E.

    2008-01-01

    In a survey of all PhD programs in psychology in the United States and Canada, the authors documented the quantitative methodology curriculum (statistics, measurement, and research design) to examine the extent to which innovations in quantitative methodology have diffused into the training of PhDs in psychology. In all, 201 psychology PhD…

  10. Doctoral Training in Statistics, Measurement, and Methodology in Psychology: Replication and Extension of Aiken, West, Sechrest, and Reno's (1990) Survey of PhD Programs in North America

    Science.gov (United States)

    Aiken, Leona S.; West, Stephen G.; Millsap, Roger E.

    2008-01-01

    In a survey of all PhD programs in psychology in the United States and Canada, the authors documented the quantitative methodology curriculum (statistics, measurement, and research design) to examine the extent to which innovations in quantitative methodology have diffused into the training of PhDs in psychology. In all, 201 psychology PhD…

  11. Survey on methodologies in the risk assessment of chemical exposures in emergency response situations in Europe

    DEFF Research Database (Denmark)

    Heinälä, Milla; Gundert-Remy, Ursula; Wood, Maureen Heraty

    2013-01-01

    A scientifically sound assessment of the risk to human health resulting from acute chemical releases is the cornerstone for chemical incident prevention, preparedness and response. Although the general methodology to identify acute toxicity of chemicals has not substantially changed in the last....../corrosive chemicals will remain serious risks also in future the development of plausible scenarios for potential emerging risks is also needed. This includes risks from new mixtures and chemicals (e.g. nanoparticles)....

  12. The burden of headache disorders in India: methodology and questionnaire validation for a community-based survey in Karnataka State.

    Science.gov (United States)

    Rao, Girish N; Kulkarni, Girish B; Gururaj, Gopalkrishna; Rajesh, Kavita; Subbakrishna, D Kumaraswamy; Steiner, Timothy J; Stovner, Lars J

    2012-10-01

    Primary headache disorders are a major public-health problem globally and, possibly more so, in low- and middle-income countries. No methodologically sound studies of prevalence and burden of headache in the adult Indian population have been published previously. The present study was a door-to-door cold-calling survey in urban and rural areas in and around Bangalore, Karnataka State. From 2,714 households contacted, 2,514 biologically unrelated individuals were eligible for the survey and 2,329 (92.9 %) participated (1,103 [48 %] rural; 1,226 [52 %] urban; 1,141 [49 %] male; 1,188 [51 %] female; mean age 38.0 years). The focus was on primary headache (migraine and tension-type headache [TTH]) and medication-overuse headache. A structured questionnaire administered by trained lay interviewers was the instrument both for diagnosis (algorithmically determined from responses) and burden estimation. The screening question enquired into headache in the last year. The validation study compared questionnaire-based diagnoses with those obtained soon after through personal interview by a neurologist in a random sub-sample of participants (n = 381; 16 %). It showed high values (> 80 %) for sensitivity, specificity and predictive values for any headache, and for specificity and negative predictive value for migraine and TTH. Kappa values for diagnostic agreement were good for any headache (0.69 [95 % CI 0.61-0.76]), moderate (0.46 [0.35-0.56]) for migraine and fair (0.39 [0.29-0.49]) for TTH. The survey methodology, including identification of and access to participants, proved feasible. The questionnaire proved effective in the survey population. The study will give reliable estimates of the prevalence and burden of headache, and of migraine and TTH specifically, in urban and rural Karnataka.

  13. Quality Issues in Higher Education: The Role of Methodological Triangulation in Enhancing the Quality of a Doctoral Thesis

    National Research Council Canada - National Science Library

    Muhammad Farouq Khan Lodhi

    2016-01-01

      This paper examines the relative merits of writing or examining a doctoral thesis by placing it in its appropriate philosophical perspective and opting for plurality in choice of methodology paradigms...

  14. The Carnegie-Spitzer-IMACS Redshift Survey of Galaxy Evolution since z=1.5: I. Description and Methodology

    CERN Document Server

    Kelson, Daniel D; Dressler, Alan; McCarthy, Patrick J; Shectman, Stephen A; Mulchaey, John S; Villanueva, Edward V; Crane, Jeffrey D; Quadri, Ryan F

    2012-01-01

    We describe the Carnegie-Spitzer-IMACS (CSI) Survey, a wide-field, near-IR selected spectrophotometric redshift survey with the Inamori Magellan Areal Camera and Spectrograph (IMACS) on Magellan-Baade. By defining a flux-limited sample of galaxies in Spitzer 3.6micron imaging of SWIRE fields, the CSI Survey efficiently traces the stellar mass of average galaxies to z~1.5. This first paper provides an overview of the survey selection, observations, processing of the photometry and spectrophotometry. We also describe the processing of the data: new methods of fitting synthetic templates of spectral energy distributions are used to derive redshifts, stellar masses, emission line luminosities, and coarse information on recent star-formation. Our unique methodology for analyzing low-dispersion spectra taken with multilayer prisms in IMACS, combined with panchromatic photometry from the ultraviolet to the IR, has yielded 37,000 high quality redshifts in our first 5.3 sq.degs of the SWIRE XMM-LSS field. We use three...

  15. Application of hazard analysis and critical control point methodology and risk-based grading to consumer food safety surveys.

    Science.gov (United States)

    Røssvoll, Elin Halbach; Ueland, Øydis; Hagtvedt, Therese; Jacobsen, Eivind; Lavik, Randi; Langsrud, Solveig

    2012-09-01

    Traditionally, consumer food safety survey responses have been classified as either "right" or "wrong" and food handling practices that are associated with high risk of infection have been treated in the same way as practices with lower risks. In this study, a risk-based method for consumer food safety surveys has been developed, and HACCP (hazard analysis and critical control point) methodology was used for selecting relevant questions. We conducted a nationally representative Web-based survey (n = 2,008), and to fit the self-reported answers we adjusted a risk-based grading system originally developed for observational studies. The results of the survey were analyzed both with the traditional "right" and "wrong" classification and with the risk-based grading system. The results using the two methods were very different. Only 5 of the 10 most frequent food handling violations were among the 10 practices associated with the highest risk. These 10 practices dealt with different aspects of heat treatment (lacking or insufficient), whereas the majority of the most frequent violations involved storing food at room temperature for too long. Use of the risk-based grading system for survey responses gave a more realistic picture of risks associated with domestic food handling practices. The method highlighted important violations and minor errors, which are performed by most people and are not associated with significant risk. Surveys built on a HACCP-based approach with risk-based grading will contribute to a better understanding of domestic food handling practices and will be of great value for targeted information and educational activities.

  16. On some theoretical and methodological issues in researching the Roma population in sociology and ethnology/socio-cultural anthropology. The example of an ongoing research project in Serbia

    Directory of Open Access Journals (Sweden)

    Miloš Milenković

    2016-02-01

    Full Text Available The paper considers theoretical and methodological problems noted during the research project “Social and cultural potentials of the Roma ethnic community in Serbia” undertaken during 2013 and 2014. These problems point to an extant yet latent tension between the anthropological and the sociological approaches to the researched reality, with special emphasis on the antirealist tradition of the former and the empiricist “realist” tradition of the latter in the Serbian academic tradition of these disciplines. The paper considers how standard issues connected to methodological aspects of this primarily sociological research project (choice of topic, creation of sample, the making of field instruments, selection of informants, communication in the field, use of field assistants, data analysis and the making of the manuscript diffract through the prism of theoretically disputable concepts of identity, ethnicity, assimilation and essentialization, which are subject to continuing questioning in anthropological theoretical and empirical research. The experience of conducting research together displays a set of methodological defaults on the anthropological and a set of theoretical defaults on the sociological side, followed by research renunciations and interpretative tensions and frustrations that arise from them, so it can be used as a guide to understanding disciplinary differences and similarities, especially when planning cooperation on a global level as well as in the local research context. Aside from this, the indivisibility of theoretical and methodological structures and the huge influence of theory on method, as demonstrated by the research itself, is considered, with implications for understanding theoretical and methodological issues which are bigger than the two disciplines in question. It is concluded that, for pragmatic reasons, multidisciplinary research of this type must be designed to suppress the theoretical ambitions of

  17. Split-Half Administration of the 2015 School Crime Supplement to the National Crime Victimization Survey. Methodology Report. NCES 2017-004

    Science.gov (United States)

    Lessne, Deborah; Cidade, Melissa

    2016-01-01

    This report outlines the development, methodology, and results of the split-half administration of the 2015 School Crime Supplement (SCS) to the National Crime Victimization Survey (NCVS). The National Crime Victimization Survey (NCVS) is sponsored by the U.S. Department of Justice, Bureau of Justice Statistics (BJS). The National Center for…

  18. Split-Half Administration of the 2015 School Crime Supplement to the National Crime Victimization Survey: Methodology Report. NCES 2017-004

    Science.gov (United States)

    Lessne, Deborah; Cidade, Melissa

    2016-01-01

    This report outlines the development, methodology, and results of the split-half administration of the 2015 School Crime Supplement (SCS) to the National Crime Victimization Survey (NCVS). The National Crime Victimization Survey (NCVS) is sponsored by the U.S. Department of Justice, Bureau of Justice Statistics (BJS). The U.S. Census Bureau…

  19. Energy efficiency and energy savings in Japanese residential buildings - research methodology and surveyed results

    Energy Technology Data Exchange (ETDEWEB)

    Lopes, L.; Hokoi, S.; Miura, H. [Kyoto University (Japan). Faculty of Engineering, Department of Architecture and Environmental Design; Shuhei, K. [Kansai Electric Power Company Inc., Amagasaki (Japan). Energy Use R and D Center

    2005-07-01

    Worldwide energy consumption has risen 30% in the last 25 years. Fossil fuels exploitation is causing depletion of resources and serious environmental problems. Energy efficiency improvement and energy savings are important targets to be achieved on every society as a whole and in residential buildings in particular. In this article, results of a survey and questionnaire on energy consumption and thermal environment held in Kansai area, Japan are reported. Energy savings potential was analyzed for the surveyed 13 houses focusing on certain electrical appliances e.g. TV, rice cooker and refrigerator. Residents' environmental awareness towards energy consumption was clarified through questionnaire. An energy information session towards residents was held, and the resulting changes in lifestyle and their implications on energy consumption were evaluated. (author)

  20. Data Processing Procedures and Methodology for Estimating Trip Distances for the 1995 American Travel Survey (ATS)

    Energy Technology Data Exchange (ETDEWEB)

    Hwang, H.-L.; Rollow, J.

    2000-05-01

    The 1995 American Travel Survey (ATS) collected information from approximately 80,000 U.S. households about their long distance travel (one-way trips of 100 miles or more) during the year of 1995. It is the most comprehensive survey of where, why, and how U.S. residents travel since 1977. ATS is a joint effort by the U.S. Department of Transportation (DOT) Bureau of Transportation Statistics (BTS) and the U.S. Department of Commerce Bureau of Census (Census); BTS provided the funding and supervision of the project, and Census selected the samples, conducted interviews, and processed the data. This report documents the technical support for the ATS provided by the Center for Transportation Analysis (CTA) in Oak Ridge National Laboratory (ORNL), which included the estimation of trip distances as well as data quality editing and checking of variables required for the distance calculations.

  1. From Natural Language Text to Visual Models: A survey of Issues and Approaches

    Directory of Open Access Journals (Sweden)

    Cristina-Claudia OSMAN

    2016-01-01

    Full Text Available Over the last 20 years, research groups focused on automating the process of extracting valuable information from Natural Language text in order to discover data and process models. In this context, several tools and approaches have been proposed. The overall objective of this survey is to examine existing literature works that transform textual specifications into visual models. This paper aims to give a comprehensive account of the existing tools meant to discover data and process models from natural language text. Our analysis focuses on approaches of these tools in the model extraction process and highlight issues of each proposed approach. In the case of object oriented software modelling of data models extraction we analyze the degree of automation, efficiency and completeness of the transformation process. Regarding process models extraction, the study is not limited only to business process discovery, but it also provides case studies from several fields such as medical or archaeological. Even if not all the tools developed are clearly depicting a Natural Language Processing technique, a review of each approach is presented.

  2. A Survey of Routing Issues and Associated Protocols in Underwater Wireless Sensor Networks

    Directory of Open Access Journals (Sweden)

    Muhammad Khalid

    2017-01-01

    Full Text Available Underwater wireless sensor networks are a newly emerging wireless technology in which small size sensors with limited energy and limited memory and bandwidth are deployed in deep sea water and various monitoring operations like tactical surveillance, environmental monitoring, and data collection are performed through these tiny sensors. Underwater wireless sensor networks are used for the exploration of underwater resources, oceanographic data collection, flood or disaster prevention, tactical surveillance systems, and unmanned underwater vehicles. Sensor nodes consist of a small memory, a central processing unit, and an antenna. Underwater networks are much different from terrestrial sensor networks as radio waves cannot be used in underwater wireless sensor networks. Acoustic channels are used for communication in deep sea water. Acoustic signals have many limitations, such as limited bandwidth, higher end-to-end delay, network path loss, higher propagation delay, and dynamic topology. Usually, these limitations result in higher energy consumption with a smaller number of packets delivered. The main aim nowadays is to operate sensor nodes having a smaller battery for a longer time in the network. This survey has discussed the state-of-the-art localization based and localization-free routing protocols. Routing associated issues in the area of underwater wireless sensor networks have also been discussed.

  3. Survey on Security Issues in Cloud Computing and Associated Mitigation Techniques

    CERN Document Server

    Bhadauria, Rohit

    2012-01-01

    Cloud Computing holds the potential to eliminate the requirements for setting up of high-cost computing infrastructure for IT-based solutions and services that the industry uses. It promises to provide a flexible IT architecture, accessible through internet for lightweight portable devices. This would allow multi-fold increase in the capacity or capabilities of the existing and new software. In a cloud computing environment, the entire data reside over a set of networked resources, enabling the data to be accessed through virtual machines. Since these data-centers may lie in any corner of the world beyond the reach and control of users, there are multifarious security and privacy challenges that need to be understood and taken care of. Also, one can never deny the possibility of a server breakdown that has been witnessed, rather quite often in the recent times. There are various issues that need to be dealt with respect to security and privacy in a cloud computing scenario. This extensive survey paper aims to...

  4. The XMM Cluster Survey: Optical analysis methodology and the first data release

    CERN Document Server

    Mehrtens, Nicola; Lloyd-Davies, E J; Hilton, Matt; Miller, Christopher J; Stanford, S A; Hosmer, Mark; Hoyle, Ben; Collins, Chris A; Liddle, Andrew R; Viana, Pedro T P; Nichol, Robert C; Stott, John P; Dubois, E Naomi; Kay, Scott T; Sahlen, Martin; Young, Owain; Short, C J; Christodoulou, L; Watson, William A; Davidson, Michael; Harrison, Craig D; Baruah, Leon; Smith, Mathew; Burke, Claire; Deadman, Paul-James; Rooney, Philip J; Edmondson, Edward M; West, Michael; Campbell, Heather C; Edge, Alastair C; Mann, Robert G; Wake, David; Benoist, Christophe; da Costa, Luiz; Maia, Marcio A G; Ogando, Ricardo

    2011-01-01

    The XMM Cluster Survey (XCS) is a serendipitous search for galaxy clusters using all publicly available data in the XMM-Newton Science Archive. Its main aims are to measure cosmological parameters and trace the evolution of X-ray scaling relations. In this paper we present the first data release from the XMM Cluster Survey (XCS-DR1). This consists of 503 optically confirmed, serendipitously detected, X-ray clusters. Of these clusters, 255 are new to the literature and 356 are new X-ray discoveries. We present 464 clusters a with a redshift estimate (0.06 1.0, including a new spectroscopically-confirmed cluster at z = 1.01); (ii) 67 clusters with high Tx (> 5 keV); (iii) 131 clusters/groups with low Tx (< 2 keV); (iv) 27 clusters with measured Tx values in the SDSS `Stripe 82' co-add region; (v) 78 clusters with measured Tx values in the Dark Energy Survey region; (vi) 40 clusters detected with sufficient counts to permit mass measurements (under the assumption of hydrostatic equilibrium); (vii) 105 cluste...

  5. The 2014 Survey on Living with Chronic Diseases in Canada on Mood and Anxiety Disorders: a methodological overview

    Directory of Open Access Journals (Sweden)

    S. O’Donnell

    2016-12-01

    Full Text Available Introduction: There is a paucity of information about the impact of mood and anxiety disorders on Canadians and the approaches used to manage them. To address this gap, the 2014 Survey on Living with Chronic Diseases in Canada–Mood and Anxiety Disorders Component (SLCDC-MA was developed. The purpose of this paper is to describe the methodology of the 2014 SLCDC-MA and examine the sociodemographic characteristics of the final sample. Methods: The 2014 SLCDC-MA is a cross-sectional follow-up survey that includes Canadians from the 10 provinces aged 18 years and older with mood and/or anxiety disorders diagnosed by a health professional that are expected to last, or have already lasted, six months or more. The survey was developed by the Public Health Agency of Canada (PHAC through an iterative, consultative process with Statistics Canada and external experts. Statistics Canada performed content testing, designed the sampling frame and strategies and collected and processed the data. PHAC used descriptive analyses to describe the respondents’ sociodemographic characteristics, produced nationally representative estimates using survey weights provided by Statistics Canada, and generated variance estimates using bootstrap methodology. Results: The final 2014 SLCDC-MA sample consists of a total of 3361 respondents (68.9% response rate. Among Canadian adults with mood and/or anxiety disorders, close to two-thirds (64% were female, over half (56% were married/in a common-law relationship and 60% obtained a post-secondary education. Most were young or middle-aged (85%, Canadian born (88%, of non-Aboriginal status (95%, and resided in an urban setting (82%. Household income was fairly evenly distributed between the adequacy quintiles; however, individuals were more likely to report a household income adequacy within the lowest (23% versus highest (17% quintile. Forty-five percent reported having a mood disorder only, 24% an anxiety disorder only and 31

  6. Mental Health Issues Facing a Diverse Sample of College Students: Results from the College Student Mental Health Survey

    Science.gov (United States)

    Soet, Johanna; Sevig, Todd

    2006-01-01

    Over the past 5 years there has been increased attention given to mental health issues on college and university campuses across the country. However, few research efforts have been conducted to systematically investigate the mental health of college students. The College Student Mental Health Survey was undertaken as a first step towards gaining…

  7. A Comprehensive Survey on the Status of Social and Professional Issues in United States Undergraduate Computer Science Programs and Recommendations

    Science.gov (United States)

    Spradling, Carol; Soh, Leen-Kiat; Ansorge, Charles J.

    2009-01-01

    A national web-based survey was administered to 700 undergraduate computer science (CS) programs in the United States as part of a stratified random sample of 797 undergraduate CS programs. The 251 program responses (36% response rate) regarding social and professional issues are presented. This article describes the demographics of the…

  8. The Olympia Proceedings. Section III: Pre-Olympia Survey Results. Current Issues in School Psychology: Opinion x Impact Matrices.

    Science.gov (United States)

    Benson, A. Jerry; Coulter, W. Alan

    1982-01-01

    Crucial issues in the future of school psychology, regardless of the opinion rating in a questionnaire were found to be the role definition of school psychologist, influences of PL 94-142, assessment practices, intervention techniques, political and economic forces and legal-ethical conflicts. The survey of psychologists was an information base…

  9. A technical survey on issues of the quantitative evaluation of software reliability

    Energy Technology Data Exchange (ETDEWEB)

    Park, J. K; Sung, T. Y.; Eom, H. S.; Jeong, H. S.; Park, J. H.; Kang, H. G.; Lee, K. Y.

    2000-04-01

    To develop the methodology for evaluating the software reliability included in digital instrumentation and control system (I and C), many kinds of methodologies/techniques that have been proposed from the software reliability engineering fuel are analyzed to identify the strong and week points of them. According to analysis results, methodologies/techniques that can be directly applied for the evaluation of the software reliability are not exist. Thus additional researches to combine the most appropriate methodologies/techniques from existing ones would be needed to evaluate the software reliability. (author)

  10. Methodological Issues in Documentary Ethnography: A Renewed Call for Putting Cameras in the Hands of the People.

    Science.gov (United States)

    Huesca, Robert

    The participatory method of image production holds enormous potential for communication and journalism scholars operating out of a critical/cultural framework. The methodological potentials of mechanical reproduction were evident in the 1930s, when Walter Benjamin contributed three enduring concepts: questioning the art/document dichotomy; placing…

  11. Exploring the Society-Body-School Nexus: Theoretical and Methodology Issues in the Study of Body Pedagogics

    Science.gov (United States)

    Shilling, Chris

    2010-01-01

    In this article I identify how developments in consumer culture, waged-work and health policy have informed our current interest in the body, before suggesting that Durkheim's and Mauss's methodological approach towards the external and internal dimensions of "social facts" provides us with a valuable basis on which we can analyse the…

  12. An Examination of the State of Imitation Research in Children with Autism: Issues of Definition and Methodology

    Science.gov (United States)

    Sevlever, Melina; Gillis, Jennifer M.

    2010-01-01

    Several authors have suggested that children with autism are impaired in their ability to imitate others. However, diverse methodologies, contradictory findings, and varying theoretical explanations continue to exist in the literature despite decades of research. A comprehensive account of imitation in children with autism is hampered by the lack…

  13. Methodological Issues in Self-Disclosure Research: "Would you Like Being a Prostitute: Why or Why Not?"

    Science.gov (United States)

    Bridge, R. Gary

    The author attempts to categorize the methodological approaches which have been used in self-disclosure research, identify some of the important problems that attend these research procedures, and propose some alternative strategies for future research on self-disclosure. He discusses correlational and experimental research strategies. The…

  14. Exploring the Society-Body-School Nexus: Theoretical and Methodology Issues in the Study of Body Pedagogics

    Science.gov (United States)

    Shilling, Chris

    2010-01-01

    In this article I identify how developments in consumer culture, waged-work and health policy have informed our current interest in the body, before suggesting that Durkheim's and Mauss's methodological approach towards the external and internal dimensions of "social facts" provides us with a valuable basis on which we can analyse the…

  15. [The Health, Well-Being, and Aging ("SABE") survey: methodology applied and profile of the study population].

    Science.gov (United States)

    Albala, Cecilia; Lebrão, Maria Lúcia; León Díaz, Esther María; Ham-Chande, Roberto; Hennis, Anselm J; Palloni, Alberto; Peláez, Martha; Pratts, Omar

    2005-01-01

    This document outlines the methodology of the Salud, Bienestar y Envejecimiento (Health, Well-Being, and Aging) survey (known as the "SABE survey"), and it also summarizes the challenges that the rapid aging of the population in Latin America and the Caribbean imposes on society in general and especially on health services. The populations of the countries of Latin America and the Caribbean are aging at a rate that has not been seen in the developed world. The evaluation of health problems and disability among older adults in those countries indicates that those persons are aging with more functional limitations and worse health than is true for their counterparts in developed nations. In addition, family networks in Latin America and the Caribbean are changing rapidly and have less capacity to make up for the lack of protections provided by social institutions. The multicenter SABE study was developed with the objective of evaluating the state of health of older adults in seven cities of Latin America and the Caribbean: Bridgetown, Barbados; Buenos Aires, Argentina; Havana, Cuba; Mexico City, Mexico; Montevideo, Uruguay; Santiago, Chile; and São Paulo, Brazil. The SABE survey has established the starting point for systematic research on aging in urban areas of Latin America and the Caribbean. Comparative studies of these characteristics and with this comparative nature should be extended to other countries, areas, and regions of the world in order to expand the knowledge available on older adults.

  16. [Methodological discussion about prevalence of the dental fluorosis on dental health surveys].

    Science.gov (United States)

    Freitas, Cláudia Helena Soares de Morais; Sampaio, Fábio Correia; Roncalli, Angelo Giuseppe; Moysés, Samuel Jorge

    2013-12-01

    To analyze the limitations of studying dental fluorosis in cross-sectional studies. Data from the Oral Health of the Brazilian Population (SBBrasil 2003) and the Brazilian Oral Health Survey (SBBrasil 2010) were used. Epidemiological trends for fluorosis in 12-year-old Brazilians, aspects of the reliability of the data as well as the accuracy of the estimates are assessed for these two studies. The distribution of prevalence of fluorosis was carried out according to the domains of the study (state capitals and regions) and the year in which the study took place. The confidence intervals (95%CI) were also shown for simple prevalence (without taking into account level of severity). The prevalence of dental fluorosis showed considerable variation, between 0% and 61% in 2003 and 0% and 59% in 2010. Inconsistencies were observed in the data in individual terms (for year and for domain) and in the behavior of the trend. Considering the expected prevalence and the data available in the two studies, the minimum sample size should be 1,500 individuals in order to obtain 3.4% and 6.6% confidence intervals, considering the minimum coefficient of variation to be 15%. Given the subjectivity in its classification, examinations for dental fluorosis may show more variation than those for other oral health conditions. The power to establish differences between the domains of the study with the sample of the SBBrasil 2010 is quite limited. Based on the 2003 and 2010 studies, it was not possible to analyze patterns of dental fluorosis in Brazil; these data are merely exploratory indicators of the prevalence of dental fluorosis. It was impossible to make comparisons due to different analysis models being used in the two surveys. Investigating dental fluorosis in population-based surveys is not even an economically viable technique, using localized epidemiological studies with a sampling plan would be more suitable [corrected].

  17. A SURVEY AND ANALYSIS ON CHINESE TEACHERSAND LEARNERS' NEEDS CONFLICT OF METHODOLOGY

    Institute of Scientific and Technical Information of China (English)

    YuXia

    2004-01-01

    Needs analysis, as a commonly used technique of“identifying learners” needs for language teaching, has beenadopted hy many College English teachers. However, the pointthat needs to be made is that the learners needs may conflictwith the teacher's, which is confirmed by the survey studyconducted by the author. Based on Nunan's negotiation model,this paper explores means of balancing the conflict under learner-centered system, It is proposed that needs conflict can be easedup by negotiating learning activities, developing learners learning strategy, establishing rapport with students and improving the ability of organizing class.

  18. Recent advancements in information extraction methodology and hardware for earth resources survey systems

    Science.gov (United States)

    Erickson, J. D.; Thomson, F. J.

    1974-01-01

    The present work discusses some recent developments in preprocessing and extractive processing techniques and hardware and in user applications model development for earth resources survey systems. The Multivariate Interactive Digital Analysis System (MIDAS) is currently being developed, and is an attempt to solve the problem of real time multispectral data processing in an operational system. The main features and design philosophy of this system are described. Examples of wetlands mapping and land resource inventory are presented. A user model developed for predicting the yearly production of mallard ducks from remote sensing and ancillary data is described.

  19. The Canadian survey of health, lifestyle and ageing with multiple sclerosis: methodology and initial results

    Science.gov (United States)

    Ploughman, Michelle; Beaulieu, Serge; Harris, Chelsea; Hogan, Stephen; Manning, Olivia J; Alderdice, Penelope W; Fisk, John D; Sadovnick, A Dessa; O'Connor, Paul; Morrow, Sarah A; Metz, Luanne M; Smyth, Penelope; Mayo, Nancy; Marrie, Ruth Ann; Knox, Katherine B; Stefanelli, Mark; Godwin, Marshall

    2014-01-01

    Objective People with multiple sclerosis (MS) are living longer so strategies to enhance long-term health are garnering more interest. We aimed to create a profile of ageing with MS in Canada by recruiting 1250 (5% of the Canadian population above 55 years with MS) participants and focusing data collection on health and lifestyle factors, disability, participation and quality of life to determine factors associated with healthy ageing. Design National multicentre postal survey. Setting Recruitment from Canadian MS clinics, MS Society of Canada chapters and newspaper advertisements. Participants People aged 55 years or older with MS symptoms more than 20 years. Outcome measures Validated outcome measures and custom-designed questions examining MS disease characteristics, living situation, disability, comorbid conditions, fatigue, health behaviours, mental health, social support, impact of MS and others. Results Of the 921 surveys, 743 were returned (80.7% response rate). Participants (mean age 64.6±6.2 years) reported living with MS symptoms for an average of 32.9±9.5 years and 28.6% were either wheelchair users or bedridden. There was only 5.4% missing data and 709 respondents provided optional qualitative information. According to data derived from the 2012 Canadian Community Health Survey of Canadians above 55 years of age, older people with MS from this survey sample are about eight times less likely to be employed full-time. Older people with MS were less likely to engage in regular physical activity (26.7%) compared with typical older Canadians (45.2%). However, they were more likely to abstain from alcohol and smoking. Conclusions Despite barriers to participation, we were able to recruit and gather detailed responses (with good data quality) from a large proportion of older Canadians with MS. The data suggest that this sample of older people with MS is less likely to be employed, are less active and more disabled than other older Canadians

  20. Uranium resource assessment by the Geological Survey; methodology and plan to update the national resource base

    Science.gov (United States)

    Finch, Warren Irvin; McCammon, Richard B.

    1987-01-01

    Based on the Memorandum of Understanding {MOU) of September 20, 1984, between the U.S. Geological Survey of the U.S. Department of Interior and the Energy Information Administration {EIA) of the U.S. Department of Energy {DOE), the U.S. Geological Survey began to make estimates of the undiscovered uranium endowment of selected areas of the United States in 1985. A modified NURE {National Uranium Resource Evaluation) method will be used in place of the standard NURE method of the DOE that was used for the national assessment reported in October 1980. The modified method, here named the 'deposit-size-frequency' {DSF) method, is presented for the first time, and calculations by the two methods are compared using an illustrative example based on preliminary estimates for the first area to be evaluated under the MOU. The results demonstrate that the estimate of the endowment using the DSF method is significantly larger and more uncertain than the estimate obtained by the NURE method. We believe that the DSF method produces a more realistic estimate because the principal factor estimated in the endowment equation is disaggregated into more parts and is more closely tied to specific geologic knowledge than by the NURE method. The DSF method consists of modifying the standard NURE estimation equation, U=AxFxTxG, by replacing the factors FxT by a single factor that represents the tonnage for the total number of deposits in all size classes. Use of the DSF method requires that the size frequency of deposits in a known or control area has been established and that the relation of the size-frequency distribution of deposits to probable controlling geologic factors has been determined. Using these relations, the principal scientist {PS) first estimates the number and range of size classes and then, for each size class, estimates the lower limit, most likely value, and upper limit of the numbers of deposits in the favorable area. Once these probable estimates have been refined

  1. Methodological considerations concerning the development of oral dental erosion indexes: literature survey, validity and reliability

    DEFF Research Database (Denmark)

    Berg-Beckhoff, Gabriele; Kutschmann, Marcus; Bardehle, Doris

    2008-01-01

    Within the context of preventing non-communicable diseases, the World Health Report (2002) and the WHO Global Oral Health Program (2003) put forward a new strategy of disease prevention and health promotion. Greater emphasis is placed on developing global policies in oral health promotion and oral...... disease prevention. The Decayed, Missing, Filled Teeth (DMFT) index does not meet new challenges in the field of oral health. Dental erosion seems to be a growing problem, and in some countries, an increase in erosion of teeth is associated with an increase in the consumption of beverages containing acids....... Therefore, within a revision of the WHO Oral Health Surveys Basic Methods, new oral disease patterns, e.g. dental erosion, have to be taken into account. Within the last 20 years, many studies on dental erosion have been carried out and published. There has been a rapid growth in the number of indexes...

  2. Scoping survey of perceived concerns, issues, and problems for near-surface disposal of FUSRAP waste

    Energy Technology Data Exchange (ETDEWEB)

    Robinson, J.E.; Gilbert, T.L.

    1982-12-01

    This report is a scoping summary of concerns, issues, and perceived problems for near-surface disposal of radioactive waste, based on a survey of the current literature. Near-surface disposal means land burial in or within 15 to 20 m of the earth's surface. It includes shallow land burial (burial in trenches, typically about 6 m deep with a 2-m cap and cover) and some intermediate-depth land burial (e.g., trenches and cap similar to shallow land burial, but placed below 10 to 15 m of clean soil). Proposed solutions to anticipated problems also are discussed. The purpose of the report is to provide a better basis for identifying and evaluating the environmental impacts and related factors that must be analyzed and compared in assessing candidate near-surface disposal sites for FUSRAP waste. FUSRAP wastes are of diverse types, and their classification for regulatory purposes is not yet fixed. Most of it may be characterized as low-activity bulk solid waste, and is similar to mill tailings, but with somewhat lower average specific activity. It may also qualify as Class A segregated waste under the proposed 10 CFR 61 rules, but the parent radionuclides of concern in FUSRAP (primarily U-238 and Th-232) have longer half-lives than do the radionuclides of concern in most low-level waste. Most of the references reviewed deal with low-level waste or mill tailings, since there is as yet very little literature in the public domain on FUSRAP per se.

  3. Classroom Climate and Contextual Effects: Conceptual and Methodological Issues in the Evaluation of Group-Level Effects

    Science.gov (United States)

    Marsh, Herbert W.; Ludtke, Oliver; Nagengast, Benjamin; Trautwein, Ulrich; Morin, Alexandre J. S.; Abduljabbar, Adel S.; Koller, Olaf

    2012-01-01

    Classroom context and climate are inherently classroom-level (L2) constructs, but applied researchers sometimes--inappropriately--represent them by student-level (L1) responses in single-level models rather than more appropriate multilevel models. Here we focus on important conceptual issues (distinctions between climate and contextual variables;…

  4. Improving the diagnostic criteria for alcohol use disorders through survey methodology and cognitive interviewing.

    Science.gov (United States)

    Mewton, Louise; Slade, Tim; Teesson, Maree; Memedovic, Sonja; Krueger, Robert F

    2014-09-01

    This study aims to identify problems in the structure and wording of questions designed to operationalize four DSM-IV diagnostic criteria for alcohol use disorders (AUDs): (1) use of alcohol in hazardous situations (hazard); (2) tolerance; (3) use of alcohol in larger amounts/longer periods than intended (larger/longer); (4) unsuccessful attempts to cut down or control alcohol use (quit/cut down). Ten experts appraised the questions related to these criteria in the WMH-CIDI according to a standardized checklist. These experts identified three main problems: (1) the double-barrelled nature of some of the questions; (2) definitional issues; and (3) unclear thresholds for criterion endorsement. Cognitive interviews of 100 young adult drinkers aged 18-24 were then conducted. The double-barrelled nature of the DSM-IV criteria led to their subsequent over- or under-endorsement. Key terms in the questions under investigation were defined inconsistently. There was also a large amount of variability in the thresholds at which larger/longer and quit/cut down were endorsed. Many of these problems could be linked back to the DSM-IV text. The findings raise questions as to the validity of AUD diagnoses when established via structured diagnostic interview. Further research should focus on testing alternative structure and wording of key AUD criteria to ensure accurate operationalizations of these criteria in structured diagnostic interviews.

  5. Large Area Scene Selection Interface (LASSI). Methodology of Selecting Landsat Imagery for the Global Land Survey 2005

    Science.gov (United States)

    Franks, Shannon; Masek, Jeffrey G.; Headley, Rachel M.; Gasch, John; Arvidson, Terry

    2009-01-01

    The Global Land Survey (GLS) 2005 is a cloud-free, orthorectified collection of Landsat imagery acquired during the 2004-2007 epoch intended to support global land-cover and ecological monitoring. Due to the numerous complexities in selecting imagery for the GLS2005, NASA and the U.S. Geological Survey (USGS) sponsored the development of an automated scene selection tool, the Large Area Scene Selection Interface (LASSI), to aid in the selection of imagery for this data set. This innovative approach to scene selection applied a user-defined weighting system to various scene parameters: image cloud cover, image vegetation greenness, choice of sensor, and the ability of the Landsat 7 Scan Line Corrector (SLC)-off pair to completely fill image gaps, among others. The parameters considered in scene selection were weighted according to their relative importance to the data set, along with the algorithm's sensitivity to that weight. This paper describes the methodology and analysis that established the parameter weighting strategy, as well as the post-screening processes used in selecting the optimal data set for GLS2005.

  6. Consistent assignment of nursing staff to residents in nursing homes: a critical review of conceptual and methodological issues.

    Science.gov (United States)

    Roberts, Tonya; Nolet, Kimberly; Bowers, Barbara

    2015-06-01

    Consistent assignment of nursing staff to residents is promoted by a number of national organizations as a strategy for improving nursing home quality and is included in pay for performance schedules in several states. However, research has shown inconsistent effects of consistent assignment on quality outcomes. In order to advance the state of the science of research on consistent assignment and inform current practice and policy, a literature review was conducted to critique conceptual and methodological understandings of consistent assignment. Twenty original research reports of consistent assignment in nursing homes were found through a variety of search strategies. Consistent assignment was conceptualized and operationalized in multiple ways with little overlap from study to study. There was a lack of established methods to measure consistent assignment. Methodological limitations included a lack of control and statistical analyses of group differences in experimental-level studies, small sample sizes, lack of attention to confounds in multicomponent interventions, and outcomes that were not theoretically linked. Future research should focus on developing a conceptual understanding of consistent assignment focused on definition, measurement, and links to outcomes. To inform current policies, testing consistent assignment should include attention to contexts within and levels at which it is most effective. Published by Oxford University Press on behalf of the Gerontological Society of America 2013.

  7. Meta-analyses and other methodological issues in meditation research: Reply to Orme-Johnson and Dillbeck (2014).

    Science.gov (United States)

    Sedlmeier, Peter; Eberth, Juliane; Schwarz, Marcus

    2014-03-01

    We are grateful to Orme-Johnson and Dillbeck (2014) for raising several potential methodological concerns they have with our meta-analysis of the psychological effects of meditation and for thereby providing us with the opportunity to clarify these points. Orme-Johnson and Dillbeck raised 4 points that they believed might have led to unfair treatment of studies that reported the effects of transcendental meditation (TM). First, they were concerned with the way we aggregated effects over different categories of variables. Second, they disagreed with our contention that there might have been some upward bias in the effects reported for TM studies. Third, they argued that the results from TM studies do not differ depending on whether studies were done by researchers affiliated with TM institutions, and 4th, they questioned the completeness of our selection of TM studies. We still believe that our methodology for reporting study results was justified on theoretical grounds and argue that the results for all variable categories are readily available in our analysis. We also still find some indication of upward bias for TM studies, even using the method they propose. We cannot say much regarding author affiliation because we did not raise that point, and, last, we have to concede that we indeed missed some TM studies. Yet this omission did not have any substantial practical consequences concerning our conclusions. We end with a short discussion about how meditation research should be conducted in the future.

  8. Using a phenomenological research technique to examine student nurses' understandings of experiential teaching and learning: a critical review of methodological issues.

    Science.gov (United States)

    Green, A J; Holloway, D G

    1997-11-01

    This paper provides a report of the usage of a phenomenological research methodology to investigate the influence on clinical practice of pre- and post-registration nurse education which makes explicit use of experiential teaching and learning approaches. The primary aim of the research was to explore the use of a phenomenological research methodology to examine the students' understanding of experiential teaching and learning. The claims made for the use of experiential teaching and learning approaches in both pre- and post-registration nurse courses and how clinical practice is influenced by the experiential learning elements of pre- and post-registration nurse education were also examined. The first stage of the enquiry involved focused non-directive interviews with members of BSc Nursing Studies and MSc Mental Health Branch programmes. Both programmes claim to make use of experiential teaching and learning. The data were analysed using a technique developed by Giorgi. Previous experiences of experiential teaching and learning were probed, student interpretations differentiated, and the relationship between course-based learning using experiential approaches and the implications for it's influence on practice were examined. The second stage of the enquiry has followed up the initial findings, exploring the students' experience of experiential approaches on their courses both in the classroom and in work-based learning situations. The findings are presented and discussed in the context of other studies from both nurse and higher education. Throughout the paper methodological concerns arising are discussed. The paper concludes with the identification of methodological problems arising from the research strategy: the implications of the power nexus created when teachers research students, and issues relating to the use of a phenomenological methodology in a longitudinal study.

  9. Surveys on the Prevalence of Pediatric Bronchial Asthma in Japan: A Comparison between the 1982, 1992, and 2002 Surveys Conducted in the Same Region Using the Same Methodology

    Directory of Open Access Journals (Sweden)

    Sankei Nishima

    2009-01-01

    Conclusions: BA prevalence in the third survey increased 2.1 and 1.4 times respectively compared to the first survey and second survey, indicating an upward trend in all regions and age groups surveyed.

  10. Methodological issues about techniques for the spiking of standard OECD soil with nanoparticles: evidence of different behaviours

    Science.gov (United States)

    Miglietta, Maria Lucia; Rametta, Gabriella; Manzo, Sonia; Salluzzo, Antonio; Rimauro, Juri; Di Francia, Girolamo

    2015-07-01

    The aim of this study is to investigate at what extent the results of standard nanoparticle (NP) toxicity testing methodologies are affected by the different exposure procedures on soil organisms. In this view, differences in physicochemical properties of ZnO NPs (<100 nm), ZnO bulk (<200 nm) and ionic Zinc (ZnCl2) and their ecotoxicological potential toward Lepidium sativum were investigated with respect to three different spiking methods. Results show that the spiking procedures give homogeneous distribution of the testing nanomaterial in soil but the physicochemical and ecotoxicological properties of the testing species differ according to the spiking procedure. Dry spiking produced the highest ZnO solubility whereas spiking through dispersions of ZnO in water and in aqueous soil extracts produced the lowest. At the same time, the ecotoxic effects showed different trends with regard to the spiking route. The need for a definition of agreed methods concerning the NP spiking procedures is, therefore, urgent.

  11. History, applications, methodological issues and perspectives for the use of environmental DNA (eDNA) in marine and freshwater environments.

    Science.gov (United States)

    Díaz-Ferguson, Edgardo E; Moyer, Gregory R

    2014-12-01

    Genetic material (short DNA fragments) left behind by species in nonliving components of the environment (e.g. soil, sediment, or water) is defined as environmental DNA (eDNA). This DNA has been previously described as particulate DNA and has been used to detect and describe microbial communities in marine sediments since the mid-1980's and phytoplankton communities in the water column since the early-1990's. More recently, eDNA has been used to monitor invasive or endangered vertebrate and invertebrate species. While there is a steady increase in the applicability of eDNA as a monitoring tool, a variety of eDNA applications are emerging in fields such as forensics, population and community ecology, and taxonomy. This review provides scientist with an understanding of the methods underlying eDNA detection as well as applications, key methodological considerations, and emerging areas of interest for its use in ecology and conservation of freshwater and marine environments.

  12. Reexamining traditional issues in survey research: Just how evil is the anathema of low response rate?

    Energy Technology Data Exchange (ETDEWEB)

    Clark, S.B. [Oak Ridge Institute for Science and Education, TN (United States). Science/Engineering Education Division; Boser, J.A. [Univ. of Tennessee, Knoxville, TN (United States)

    1995-08-01

    Survey researchers have long been exhorted to strive for high response rates in order to maximize the likelihood that the respondents are representative of the population being surveyed. It is not surprising then, that much survey research has been directed towards examining the effects of various manipulatable factors on response rate. It is clear that attempts to reach the goal of minimizing the likelihood of nonresponse bias through testing various methods of increasing survey response rates have consumed much research and debate. The results obtained in this research have been inconsistent. Some studies have found significant differences, others have found none. The present study was designed to determine the extent to which the results of an employment survey of former graduates of a teacher preparation program would have been affected by changes in response rate.

  13. Assessing the quantified impact of a hybrid POGIL methodology on student averages in a forensic science survey course

    Science.gov (United States)

    Meeks, Tyna L.

    A causal-comparative/quasi experimental study examined the effect of incorporating a hybrid teaching methodology that blended lecture with Process Oriented Guided Inquiry Lessons (POGILs) on the overall academic achievement of a diverse student body in a large lecture setting. Additional considerations included student gender, ethnicity, declared major (STEM or non-STEM), and SAT scores. An evaluation of the effect that these characteristics had on student achievement due to differentiating import placed on the use of POGILs as a learning tool was included. This study used data obtained from a longitudinal examination of eight years of student data from an introductory forensic science survey course offered in a R1 northeastern university. This study addressed the effectiveness of applying a proscribed active learning methodology, one proposed effective in collegiate education, to a new environment, forensic science. The methodology employed combined fourteen POGILs, created specifically for the chosen course, with didactic lecture during the entire semester of a forensic science survey course. This quasi-experimental design used the manipulation of the independent variable, the use of a hybrid lecture instead of exclusive use of traditional didactic lectures, on the students' academic achievement on exams given during the course. Participants in this study (N=1436) were undergraduate students enrolled in the single semester introductory science course. A longitudinal study that incorporated eight years of data was completed, 4 years pre-intervention (2007-2010) and 4 years post-intervention (2011-2014). The forensic science survey course, taught by only one professor during the eight-year period, was a science discipline that had yet to integrate an active learning educational model. Findings indicate four variables significantly contributed to explaining nearly 28% of the variation seen in the student class averages earned during the eight-year period: the

  14. The Carnegie-Spitzer-IMACS redshift survey of galaxy evolution since z = 1.5. I. Description and methodology

    Energy Technology Data Exchange (ETDEWEB)

    Kelson, Daniel D.; Williams, Rik J.; Dressler, Alan; McCarthy, Patrick J.; Shectman, Stephen A.; Mulchaey, John S.; Villanueva, Edward V.; Crane, Jeffrey D.; Quadri, Ryan F. [The Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101 (United States)

    2014-03-10

    We describe the Carnegie-Spitzer-IMACS (CSI) Survey, a wide-field, near-IR selected spectrophotometric redshift survey with the Inamori Magellan Areal Camera and Spectrograph (IMACS) on Magellan-Baade. By defining a flux-limited sample of galaxies in Spitzer Infrared Array Camera 3.6 μm imaging of SWIRE fields, the CSI Survey efficiently traces the stellar mass of average galaxies to z ∼ 1.5. This first paper provides an overview of the survey selection, observations, processing of the photometry and spectrophotometry. We also describe the processing of the data: new methods of fitting synthetic templates of spectral energy distributions are used to derive redshifts, stellar masses, emission line luminosities, and coarse information on recent star formation. Our unique methodology for analyzing low-dispersion spectra taken with multilayer prisms in IMACS, combined with panchromatic photometry from the ultraviolet to the IR, has yielded high-quality redshifts for 43,347 galaxies in our first 5.3 deg{sup 2} of the SWIRE XMM-LSS field. We use three different approaches to estimate our redshift errors and find robust agreement. Over the full range of 3.6 μm fluxes of our selection, we find typical redshift uncertainties of σ {sub z}/(1 + z) ≲ 0.015. In comparisons with previously published spectroscopic redshifts we find scatters of σ {sub z}/(1 + z) = 0.011 for galaxies at 0.7 ≤ z ≤ 0.9, and σ {sub z}/(1 + z) = 0.014 for galaxies at 0.9 ≤ z ≤ 1.2. For galaxies brighter and fainter than i = 23 mag, we find σ {sub z}/(1 + z) = 0.008 and σ {sub z}/(1 + z) = 0.022, respectively. Notably, our low-dispersion spectroscopy and analysis yields comparable redshift uncertainties and success rates for both red and blue galaxies, largely eliminating color-based systematics that can seriously bias observed dependencies of galaxy evolution on environment.

  15. The methodology of population surveys of headache prevalence, burden and cost: principles and recommendations from the Global Campaign against Headache.

    Science.gov (United States)

    Stovner, Lars Jacob; Al Jumah, Mohammed; Birbeck, Gretchen L; Gururaj, Gopalakrishna; Jensen, Rigmor; Katsarava, Zaza; Queiroz, Luiz Paulo; Scher, Ann I; Tekle-Haimanot, Redda; Wang, Shuu-Jiun; Steiner, Timothy J

    2014-01-27

    The global burden of headache is very large, but knowledge of it is far from complete and needs still to be gathered. Published population-based studies have used variable methodology, which has influenced findings and made comparisons difficult. Among the initiatives of the Global Campaign against Headache to improve and standardize methods in use for cross-sectional studies, the most important is the production of consensus-based methodological guidelines. This report describes the development of detailed principles and recommendations. For this purpose we brought together an expert consensus group to include experience and competence in headache epidemiology and/or epidemiology in general and drawn from all six WHO world regions. The recommendations presented are for anyone, of whatever background, with interests in designing, performing, understanding or assessing studies that measure or describe the burden of headache in populations. While aimed principally at researchers whose main interests are in the field of headache, they should also be useful, at least in parts, to those who are expert in public health or epidemiology and wish to extend their interest into the field of headache disorders. Most of all, these recommendations seek to encourage collaborations between specialists in headache disorders and epidemiologists. The focus is on migraine, tension-type headache and medication-overuse headache, but they are not intended to be exclusive to these. The burdens arising from secondary headaches are, in the majority of cases, more correctly attributed to the underlying disorders. Nevertheless, the principles outlined here are relevant for epidemiological studies on secondary headaches, provided that adequate definitions can be not only given but also applied in questionnaires or other survey instruments.

  16. Redevelopment of the Arctic Area of Russia as an Objective of Systems Research and Special-Purpose Program Management Methodological Issues

    Directory of Open Access Journals (Sweden)

    Vladimir Nikolayevich Leksin

    2015-12-01

    Full Text Available The paper substantiates the methodological foundations of implementation of the rules and regulations of the development of the Arctic region of Russia, which relies on the hypothesis interpreting such development as the biggest integrated megaproject in the history of Russia. The substantiation involves both the project-oriented approach to identify the subject-matter of the research and the systems approach to assess the key opportunities of providing the integrative structure of the megaproject in the conditions of drastic differences between the areal components of the Arctic region, and to study the internal and external factors’ impact on the character, drivers and pace of the region redevelopment. The set of consistent methodological positions concerning their policy implementation by responsible governmental agencies in the foreseeable future of the Arctic is developed. The most important position involves the identification of the objective of the public administration of the Arctic region development as a systemically organized entity of multiple coordinated actions of the federal, regional and municipal authorities, corporations and civil society institutions integrated by the unique policy target and economic, social and infrastructure links. Implementation of the public administration requires the principles of systems approach, the reasonable trade-off between centralization, decentralization and continuity of governance focused exclusively on the Arctic issues. At the same time, the integration of the projects of the region’s areal components development to insure the common targets of the Arctic’s megaproject accompanied by the reconsideration of the earlier developed programs turns into a genuinely new methodological issue. In the article, recommendations to provide such integration are introduced.

  17. Methodology and Psychological Knowledge Issues in the Procedural Differentiation Sphere and the Evidence Doctrine: Problems of Theory and Legislation

    Directory of Open Access Journals (Sweden)

    Sergey S. Tsyganenko

    2016-09-01

    Full Text Available The paper is devoted to actual problems of the theory and legislation of the modern criminal trial based on provisions of differentiation of a procedural form. Its basic provisions belong also to questions of evidentiary activity. Characteristics of knowledge on criminal case will claim the psychological knowledge and categories included in the mechanism of legal regulation of criminal procedure activity. Key role is allocated for the principle of freedom of an assessment of proofs. In this case the assessment of proofs is carried out on internal belief. Historically it is connected with institute of jury trial and competitiveness. Both the principle of freedom of assessment of proofs, and many other provisions of the procedural theory and the legislation need interpretation and an explanation with use of modern psychological knowledge. At the same time in modern Russian criminal procedure as well as in foreign types of criminal trial the reduced summary or special procedural jurisdictions are actively applied. It means formation of the differentiated model of criminal legal proceedings at which there is a summary process. Simplification of an order of proof on a criminal case through a wide range of exceptions is characteristic of them that constitutes a theoretical and practical problem. At their decision it is necessary to use a modern arsenal of methodology and the theory, including new achievements in the field of psychological knowledge.

  18. Methodological issues about techniques for the spiking of standard OECD soil with nanoparticles: evidence of different behaviours

    Energy Technology Data Exchange (ETDEWEB)

    Miglietta, Maria Lucia, E-mail: mara.miglietta@enea.it; Rametta, Gabriella; Manzo, Sonia; Salluzzo, Antonio; Rimauro, Juri; Francia, Girolamo Di [ENEA, Portici Technical Unit, C.R. Portici (Italy)

    2015-07-15

    The aim of this study is to investigate at what extent the results of standard nanoparticle (NP) toxicity testing methodologies are affected by the different exposure procedures on soil organisms. In this view, differences in physicochemical properties of ZnO NPs (<100 nm), ZnO bulk (<200 nm) and ionic Zinc (ZnCl{sub 2}) and their ecotoxicological potential toward Lepidium sativum were investigated with respect to three different spiking methods. Results show that the spiking procedures give homogeneous distribution of the testing nanomaterial in soil but the physicochemical and ecotoxicological properties of the testing species differ according to the spiking procedure. Dry spiking produced the highest ZnO solubility whereas spiking through dispersions of ZnO in water and in aqueous soil extracts produced the lowest. At the same time, the ecotoxic effects showed different trends with regard to the spiking route. The need for a definition of agreed methods concerning the NP spiking procedures is, therefore, urgent.

  19. Investigation of indoor air volatile organic compounds concentration levels in dental settings and some related methodological issues.

    Science.gov (United States)

    Santarsiero, Anna; Fuselli, Sergio; Piermattei, Alessandro; Morlino, Roberta; De Blasio, Giorgia; De Felice, Marco; Ortolani, Emanuela

    2009-01-01

    The assessment of indoor air volatile organic compounds (VOCs) concentration levels in dental settings has a big health relevance for the potentially massive occupational exposure to a lot of diverse contaminants. The comparison of the VOCs profile relative to indoor conditions and to the corresponding outdoor concentrations, as well as the discovery of possible correlations between specific dental activities and VOCs concentration variations are of utmost importance for offering a reliable characterization of risk for dentists and dental staff health. In this study we review the most relevant environmental studies addressing the VOCs contamination level in dental settings. We analyze the methodological problems this kind of study must face and we report preliminary results of an indoor air investigation, carried out at dental hospital in Italy, the "Ospedale odontoiatrico George Eastman" of Rome, in which general lines for the analysis of dental settings in environmental terms are sketched. The aim of this work is to identify the kind of problems a typical enclosed (non-industrial) environment indoor air investigation has to cope with by means of the analysis of a case study.

  20. The Attachment and Clinical Issues Questionnaire: a new methodology for science and practice in criminology and forensics.

    Science.gov (United States)

    Lindberg, Marc A; Fugett, April; Lounder, Lindsay

    2014-10-01

    Most modern theories suggest that interpersonal relationships are of central importance in the development of criminal behavior. We tested the parent attachment scales of a new research and clinical measure, the Attachment and Clinical Issues Questionnaire (ACIQ). It is a 29-scale battery assessing attachments to mother, father, partner, and peers, which also includes several related clinical scales. Sixty-one (18-20 years of age) male offenders from a maximum security detention center and 131 contrasts completed the ACIQ. ANOVA demonstrated that mother and father attachments displayed different patterns. The attachment scales also predicted the numbers of crimes within the population of juvenile offenders. Thus, the parent attachment scales of the ACIQ showed promise as an instrument to test dynamic systems approaches to developmental models of criminal behavior.

  1. Keeping the customer satisfied: issues in the interpretation and use of patient satisfaction surveys.

    Science.gov (United States)

    Scott, A; Smith, R D

    1994-12-01

    Patient satisfaction and customer focus are increasingly important objectives set for health services. The patient satisfaction survey is becoming the main method of assessing this aspect of health care. In competitive environments, those institutions that show that they respond to consumers' needs are in a better position to attract funding. The use of patient satisfaction surveys in quality assurance-type activities is also increasing. In these contexts, however, the way in which patient satisfaction surveys should be interpreted and used to maximise the satisfaction of patients has received little critical attention. Problems in interpreting the results of satisfaction surveys arise from the weak conceptual foundation of patient satisfaction, which has been well documented in the literature. The objective of this paper is to show that using current formulations of patient satisfaction surveys in quality assurance-type activities and competitive environments may not lead to the maximisation of patients' satisfaction with health services. If the satisfaction of patients is to be maximised then it is necessary to extend the current conceptual basis of patient satisfaction to recognise explicitly the decision-making contexts in which the results will be used. This paper identifies the manner by which this extension should occur by considering some of the problems and pitfalls of interpreting and using the results of surveys to maximise patients' satisfaction.

  2. Aspectos metodológicos e constitutivos do pensamento do adulto Methodological and concerning issues from an adult's thought

    Directory of Open Access Journals (Sweden)

    João Alberto da Silva

    2011-04-01

    Full Text Available O estudo do pensamento do adulto apresenta algumas particularidades metodológicas que dificultam a investigação. Para a análise das estruturas e dos processos mentais, os pesquisadores da Epistemologia Genética têm por referência o Método Clínico-Crítico ou, simplesmente, Método Clínico. Todavia, os estudos de Piaget e da Escola de Genebra se ocupam, principalmente, do desenvolvimento em termos psicogenéticos, isto é, da evolução intelectual a partir da criança. No caso dos adultos, o Método Clínico precisa sofrer algumas adaptações, pois estes apresentam estruturas e processos de pensamento singulares. Em geral, o raciocínio mais apurado e rápido dos adultos pode levar à abertura de múltiplos possíveis e de incontáveis patamares de hipóteses que se reúnem em quadros dedutíveis simultâneos. É particularmente difícil averiguar um pensamento que pode seguir ao mesmo tempo mais do que um percurso, bem como descartar ligeiramente algumas hipóteses em favor de outras. O objetivo deste artigo é apresentar possibilidades metodológicas de pesquisa que atendam as especificidades do adulto. Em particular, abordaremos a prática do Método Clínico e suas nuances na aplicação com sujeitos maiores de 20 anos. Dada a variedade de operações lógico-matemáticas possíveis, destacaremos a investigação na perspectiva do sujeito psicológico e da construção da significação.The study of the adults' thought has some methodological features that hinder the investigation. For the analysis of structures and mental processes of the researchers are reference Epistemology Genetics Clinical-Critical Method, or simply Clinical Method. However, the studies of Piaget and the Geneva School of dealing, mainly in terms of psychogenetic development i.e. the intellectual development from the child. For adults, the clinical method needs some adjustments because they have structures and processes of thinking individuals. In general

  3. Methodological proposal for a systematic archaeological survey: the case of the Guadiana Menor Valley (Jaén, Spain

    Directory of Open Access Journals (Sweden)

    Chapa Brunet, Teresa

    2003-06-01

    Full Text Available The aim of this paper is to present a methodological approach to the development ola systematic archaeological survey. Inspired by the principles of Landscape Archeology, the archaeological record includes the material remains as well as geographical data. We discuss the data selection and its integration on a database and a GIS. The mechanisms generated in order to develop the sampling and its statistical bases are explained.

    El objeto de este artículo es realizar una propuesta metodológica para el desarrollo de una prospección arqueológica sistemática. Inspirada en los principios de la Arqueología del Paisaje, la documentación integra tanto los restos materiales arqueológicos como las variables del contexto geográfico. Se argumenta la selección de variables y su integración en una base de datos y en un SIG, especificándose los mecanismos generados para la elaboración del muestreo y su justificación estadística.

  4. Issues for eHealth in Psychiatry: Results of an Expert Survey

    Science.gov (United States)

    Huckvale, Kit; Larsen, Mark Erik; Basu, Ashna; Batterham, Philip J; Shaw, Frances; Sendi, Shahbaz

    2017-01-01

    Background Technology has changed the landscape in which psychiatry operates. Effective, evidence-based treatments for mental health care are now available at the fingertips of anyone with Internet access. However, technological solutions for mental health are not necessarily sought by consumers nor recommended by clinicians. Objective The objectives of this study are to identify and discuss the barriers to introducing eHealth technology-supported interventions within mental health. Methods An interactive polling tool was used to ask “In this brave new world, what are the key issues that need to be addressed to improve mental health (using technology)?” Respondents were the multidisciplinary attendees of the “Humans and Machines: A Quest for Better Mental Health” conference, held in Sydney, Australia, in 2016. Responses were categorized into 10 key issues using team-based qualitative analysis. Results A total of 155 responses to the question were received from 66 audience members. Responses were categorized into 10 issues and ordered by importance: access to care, integration and collaboration, education and awareness, mental health stigma, data privacy, trust, understanding and assessment of mental health, government and policy, optimal design, and engagement. In this paper, each of the 10 issues are outlined, and potential solutions are discussed. Many of the issues were interrelated, having implications for other key areas identified. Conclusions As many of the issues identified directly related to barriers to care, priority should be given to addressing these issues that are common across mental health delivery. Despite new challenges raised by technology, technology-supported mental health interventions represent a tremendous opportunity to address in a timely way these major concerns and improve the receipt of effective, evidence-based therapy by those in need. PMID:28246068

  5. Tourism Methodologies

    DEFF Research Database (Denmark)

    This volume offers methodological discussions within the multidisciplinary field of tourism and shows how tourism researchers develop and apply new tourism methodologies. The book is presented as an anthology, giving voice to many diverse researchers who reflect on tourism methodology in different...... in interview and field work situations, and how do we engage with the performative aspects of tourism as a field of study? The book acknowledges that research is also performance and that it constitutes an aspect of intervention in the situations and contexts it is trying to explore. This is an issue dealt...

  6. The strange case of online surveys: response issues and respondent characteristics

    DEFF Research Database (Denmark)

    Adamsen, Jannie Mia; Rundle-Thiele, Sharyn; Mehnert, Christina

    2011-01-01

    This research contributes to existing knowledge about collecting data online by analysing multiple data sets on key criteria including overall representativeness of the samples, response and break-off rates, timeliness of response and reminder effects. Across eight online surveys that initially...... in responses on the preference measures for Leaders, Early or Late Majority or Laggards and secondly, we have only considered the demographic characteristics of responders. The information can be utilised by researchers in the planning and management process of online surveys, especially since the results...... a reminder 48-72 hours after the initial invitation and closing the survey one to two days later; based on our results this time-wise approach still captures 90% of respondents. This study must be viewed in light of some key limitations. Firstly, we have not considered whether there are differences...

  7. Methodological issues of optimization the sanitary-educational assistance for children with asthma during the health care reform of Ukraine

    Directory of Open Access Journals (Sweden)

    S. N. Nedelskaya

    2013-08-01

    Full Text Available Entry. Asthma remains the medical, social, economic issue of the day of modern society and industry of health protection. Research works on questions asthma are sanctified to mainly the improvement of diagnostics and treatment of asthma and a sanitary-educational help is underestimated. In the modern terms of structural alteration of network of establishments of health care in Ukraine a sanitary-educational help must be an effective complex in strategy of therapy of patients with asthma. Research aim. To ground importance, modern forms and methods of sanitary -educational help in providing of control above asthma on the stage of structural reorganization of establishments of health care in Ukraine. Materials and research methods. Scientifically-methodical literature was analyzed on general questions of organization and realization of sanitary-educational work in asthma. Long-term of own experience of realization of this work is generalized in the conditions of stationary treatment of patients with asthma. Research results. Sanitary-educational work in a form of education in the program "Asthma school". General practitioner, as a key figure of establishments of primary medical and sanitary help, must own the psychological methods including medical-psychology programs of before- and after graduation medical education. Conclusions. In providing of effective control above bronchial asthma in children a sanitary-educational help must be logical continuation and addition of curative help. Application of the educational programs and volume of work of doctors at their implementation must be legislatively lighted up in "Protocols of diagnostics and treatment of bronchial asthma for children".

  8. Identification and management of mental health issues by dermatologic surgeons: a survey of American Society for Dermatologic Surgery members.

    Science.gov (United States)

    Sarwer, David B; Spitzer, Jacqueline C; Sobanko, Joseph F; Beer, Kenneth R

    2015-03-01

    Dermatologists have long been interested in mental health issues of their patients. Some psychosocial distress likely motivates the pursuit of cosmetic dermatologic treatments. However, a percentage of patients seeking treatment suffer from significant psychopathology, such as body dysmorphic disorder (BDD), which may contraindicate treatment. To assess dermatologic surgeons' strategies for identification and management of mental health issues among patients seeking cosmetic procedures. A survey was sent to 2,855 practicing members of the American Society for Dermatologic Surgery by e-mail. Two hundred sixty members completed the survey (9.1%). Approximately, 60% of respondents indicated that they ask new patients about psychiatric treatment history, and 92% reported that they have declined to provide a cosmetic treatment because of concerns about mental health status. Most (94%) indicated that they were aware of BDD, and 62% indicated that they refused to treat a patient believed to have BDD. Respondents estimated that 13% of new patients had BDD and 63% considered BDD to be a contraindication to treatment. Approximately 60% of dermatologic surgeons inquire about the mental health issues of their cosmetic patients. Most are aware of BDD, but less than two-thirds consider it a contraindication to treatment.

  9. Mail Survey Return Rates Published in Health Education Journals: An Issue of External Validity

    Science.gov (United States)

    Price, James H.; Murnan, Judy; Dake, Joseph A.; Dimmig, Jaime; Hayes, Mary

    2004-01-01

    This study assessed mail survey return rates published in seven general health education journals for the 13-year period, 1990-2002: "American Journal of Health Behavior," "American Journal of Health Education," "American Journal of Health Promotion," "Health Education & Behavior," "Health Education Research," "Journal of American College Health,"…

  10. Shedding Light on District Issues. 1991-92 Surveys of Students, Staff, and Graduates.

    Science.gov (United States)

    Spano, Sedra G.

    In 1991-92, over 50,000 surveys were administered to high school students, elementary school and secondary school teachers and administrators, elementary school students' parents, and graduates from the Austin (Texas) Independent School District (AISD). Parent responses are not published in this report, which discusses the following parameters:…

  11. The 1996 National Survey of Public Libraries and the Internet: Progress and Issues. Final Report.

    Science.gov (United States)

    Bertot, John Carlo; And Others

    This 1996 National Commission on Libraries and Information Science (NCLIS) survey gathered data from a national sample of public libraries concerning the current level of public library involvement with the Internet. The purpose of this study was to: (1) provide policymakers, researchers, and library professionals with longitudinal data that…

  12. Security Issues in Healthcare Applications Using Wireless Medical Sensor Networks: A Survey

    Science.gov (United States)

    Kumar, Pardeep; Lee, Hoon-Jae

    2012-01-01

    Healthcare applications are considered as promising fields for wireless sensor networks, where patients can be monitored using wireless medical sensor networks (WMSNs). Current WMSN healthcare research trends focus on patient reliable communication, patient mobility, and energy-efficient routing, as a few examples. However, deploying new technologies in healthcare applications without considering security makes patient privacy vulnerable. Moreover, the physiological data of an individual are highly sensitive. Therefore, security is a paramount requirement of healthcare applications, especially in the case of patient privacy, if the patient has an embarrassing disease. This paper discusses the security and privacy issues in healthcare application using WMSNs. We highlight some popular healthcare projects using wireless medical sensor networks, and discuss their security. Our aim is to instigate discussion on these critical issues since the success of healthcare application depends directly on patient security and privacy, for ethic as well as legal reasons. In addition, we discuss the issues with existing security mechanisms, and sketch out the important security requirements for such applications. In addition, the paper reviews existing schemes that have been recently proposed to provide security solutions in wireless healthcare scenarios. Finally, the paper ends up with a summary of open security research issues that need to be explored for future healthcare applications using WMSNs. PMID:22368458

  13. Security issues in healthcare applications using wireless medical sensor networks: a survey.

    Science.gov (United States)

    Kumar, Pardeep; Lee, Hoon-Jae

    2012-01-01

    Healthcare applications are considered as promising fields for wireless sensor networks, where patients can be monitored using wireless medical sensor networks (WMSNs). Current WMSN healthcare research trends focus on patient reliable communication, patient mobility, and energy-efficient routing, as a few examples. However, deploying new technologies in healthcare applications without considering security makes patient privacy vulnerable. Moreover, the physiological data of an individual are highly sensitive. Therefore, security is a paramount requirement of healthcare applications, especially in the case of patient privacy, if the patient has an embarrassing disease. This paper discusses the security and privacy issues in healthcare application using WMSNs. We highlight some popular healthcare projects using wireless medical sensor networks, and discuss their security. Our aim is to instigate discussion on these critical issues since the success of healthcare application depends directly on patient security and privacy, for ethic as well as legal reasons. In addition, we discuss the issues with existing security mechanisms, and sketch out the important security requirements for such applications. In addition, the paper reviews existing schemes that have been recently proposed to provide security solutions in wireless healthcare scenarios. Finally, the paper ends up with a summary of open security research issues that need to be explored for future healthcare applications using WMSNs.

  14. The effect of methodological differences in two survey's estimates of the percentage of employers sponsoring health insurance.

    Science.gov (United States)

    Hing, E; Poe, G; Euller, R

    1999-01-01

    Two large surveys on employer-sponsored health insurance produced different estimates of the percentage of employers offering insurance to their employees in 1993. These differences occurred despite major similarities in the surveys' purpose and design. In this paper, five survey design factors are assessed. Estimates from the second survey were recomputed to eliminate cases not included in the first survey. Survey estimates were no longer significantly different when cases were removed because establishments had moved, were single-employee establishments on the sample frame, were classified as completed only in the second survey, or when poststratification adjustments in the weighting used only in the second survey were eliminated. Based on a comparison of 449 cases that responded in both surveys, changes in the wording of questions also probably contributed to the difference in survey estimates. These results indicate that estimates from these types of surveys are very sensitive to differing designs.

  15. Theoretical and methodological issues with testing the SCCT and RIASEC models: Comment on Lent, Sheu, and Brown (2010) and Lubinski (2010).

    Science.gov (United States)

    Armstrong, Patrick Ian; Vogel, David L

    2010-04-01

    The current article replies to comments made by Lent, Sheu, and Brown (2010) and Lubinski (2010) regarding the study "Interpreting the Interest-Efficacy Association From a RIASEC Perspective" (Armstrong & Vogel, 2009). The comments made by Lent et al. and Lubinski highlight a number of important theoretical and methodological issues, including the process of defining and differentiating between constructs, the assumptions underlying Holland's (1959, 1997) RIASEC (Realistic, Investigative, Artistic, Social, Enterprising, and Conventional types) model and interrelations among constructs specified in social cognitive career theory (SCCT), the importance of incremental validity for evaluating constructs, and methodological considerations when quantifying interest-efficacy correlations and for comparing models using multivariate statistical methods. On the basis of these comments and previous research on the SCCT and Holland models, we highlight the importance of considering multiple theoretical perspectives in vocational research and practice. Alternative structural models are outlined for examining the role of interests, self-efficacy, learning experiences, outcome expectations, personality, and cognitive abilities in the career choice and development process.

  16. Doctoral training in statistics, measurement, and methodology in psychology: replication and extension of Aiken, West, Sechrest, and Reno's (1990) survey of PhD programs in North America.

    Science.gov (United States)

    Aiken, Leona S; West, Stephen G; Millsap, Roger E

    2008-01-01

    In a survey of all PhD programs in psychology in the United States and Canada, the authors documented the quantitative methodology curriculum (statistics, measurement, and research design) to examine the extent to which innovations in quantitative methodology have diffused into the training of PhDs in psychology. In all, 201 psychology PhD programs (86%) participated. This survey replicated and extended a previous survey (L. S. Aiken, S. G. West, L. B. Sechrest, & R. R. Reno, 1990), permitting examination of curriculum development. Most training supported laboratory and not field research. The median of 1.6 years of training in statistics and measurement was mainly devoted to the modally 1-year introductory statistics course, leaving little room for advanced study. Curricular enhancements were noted in statistics and to a minor degree in measurement. Additional coverage of both fundamental and innovative quantitative methodology is needed. The research design curriculum has largely stagnated, a cause for great concern. Elite programs showed no overall advantage in quantitative training. Forces that support curricular innovation are characterized. Human capital challenges to quantitative training, including recruiting and supporting young quantitative faculty, are discussed. Steps must be taken to bring innovations in quantitative methodology into the curriculum of PhD programs in psychology.

  17. (Per)Forming Archival Research Methodologies

    Science.gov (United States)

    Gaillet, Lynee Lewis

    2012-01-01

    This article raises multiple issues associated with archival research methodologies and methods. Based on a survey of recent scholarship and interviews with experienced archival researchers, this overview of the current status of archival research both complicates traditional conceptions of archival investigation and encourages scholars to adopt…

  18. (Per)Forming Archival Research Methodologies

    Science.gov (United States)

    Gaillet, Lynee Lewis

    2012-01-01

    This article raises multiple issues associated with archival research methodologies and methods. Based on a survey of recent scholarship and interviews with experienced archival researchers, this overview of the current status of archival research both complicates traditional conceptions of archival investigation and encourages scholars to adopt…

  19. Occupational safety issues in residential construction surveyed in Wisconsin, United States.

    Science.gov (United States)

    Choi, Sang D; Carlson, Kathryn

    2014-01-01

    Residential construction is a high-risk industry in the U.S. due to the exposure to work-related safety hazards and fall injuries. This study aimed to examine the safety training and safe work practices of construction workers within the small residential construction industry. In order to achieve the study objectives, a survey was designed and sent to approximately 200 Wisconsin based residential construction contractors. About one third of the respondents stated that they did not have any form of safety programs. The study indicated that the most common types of work-related injuries in residential construction were slips/trips/falls and cuts/lacerations. The survey findings also suggested that the residential construction contractors needed to increase the utilization of fall protection safety equipment. Further education and subject matter expert training could provide benefits to improve occupational safety and health of the small business workforce in the residential construction industry.

  20. A Survey on Big Data Analytics: Challenges, Open Research Issues and Tools

    Directory of Open Access Journals (Sweden)

    D. P. Acharjya

    2016-02-01

    Full Text Available A huge repository of terabytes of data is generated each day from modern information systems and digital technolo-gies such as Internet of Things and cloud computing. Analysis of these massive data requires a lot of efforts at multiple levels to extract knowledge for decision making. Therefore, big data analysis is a current area of research and development. The basic objective of this paper is to explore the potential impact of big data challenges, open research issues, and various tools associated with it. As a result, this article provides a platform to explore big data at numerous stages. Additionally, it opens a new horizon for researchers to develop the solution, based on the challenges and open research issues.

  1. A Survey of Control Issues in PMSG-Based Small Wind-Turbine Systems

    DEFF Research Database (Denmark)

    Orlando, Natalia Angela; Liserre, Marco; Mastromauro, Rosa Anna

    2013-01-01

    In the field of wind energy generation particular interest has been focused in recent years on distributed generation through small wind-turbines (power unit 200 kW) because of their limited size and lower environmental impact. The field of small generation was dominated by the use of asynchronous...... generators directly connected to the grid, while recently permanent magnet synchronous generators (PMSG) with power converter, either partially or fully controlled, became popular. This paper reviews the control issues related to these small wind-turbine systems: generator torque control, speed....../position estimation, pitch control, braking chopper control, dc/dc converter control, and grid converter control. Specific issues for small wind-turbines arise in the wind energy extraction optimization and limitation and in the innovative concept of “universal” wind-turbine operation, that leads these system...

  2. Reporting of financial and non-financial conflicts of interest by authors of systematic reviews: a methodological survey

    Science.gov (United States)

    Anouti, Sirine; Al-Gibbawi, Mounir; Abou-Jaoude, Elias A; Hasbani, Divina Justina; Guyatt, Gordon; Akl, Elie A

    2016-01-01

    Background Conflicts of interest may bias the findings of systematic reviews. The objective of this methodological survey was to assess the frequency and different types of conflicts of interest that authors of Cochrane and non-Cochrane systematic reviews report. Methods We searched for systematic reviews using the Cochrane Database of Systematic Reviews and Ovid MEDLINE (limited to the 119 Core Clinical Journals and the year 2015). We defined a conflict of interest disclosure as the reporting of whether a conflict of interest exists or not, and used a framework to classify conflicts of interest into individual (financial, professional and intellectual) and institutional (financial and advocatory) conflicts of interest. We conducted descriptive and regression analyses. Results Of the 200 systematic reviews, 194 (97%) reported authors' conflicts of interest disclosures, typically in the main document, and in a few cases either online (2%) or on request (5%). Of the 194 Cochrane and non-Cochrane reviews, 49% and 33%, respectively, had at least one author reporting any type of conflict of interest (p=0.023). Institutional conflicts of interest were less frequently reported than individual conflicts of interest, and Cochrane reviews were more likely to report individual intellectual conflicts of interest compared with non-Cochrane reviews (19% and 5%, respectively, p=0.004). Regression analyses showed a positive association between reporting of conflicts of interest (at least one type of conflict of interest, individual financial conflict of interest, institutional financial conflict of interest) and journal impact factor and between reporting individual financial conflicts of interest and pharmacological versus non-pharmacological intervention. Conclusions Although close to half of the published systematic reviews report that authors (typically many) have conflicts of interest, more than half report that they do not. Authors reported individual conflicts of interest

  3. Methodological issues in the use of individual brain measures to index trait liabilities: The example of noise-probe P3.

    Science.gov (United States)

    Perkins, Emily R; Yancey, James R; Drislane, Laura E; Venables, Noah C; Balsis, Steve; Patrick, Christopher J

    2017-01-01

    Recent research initiatives have called for an increased use of biological concepts and measures in defining and studying mental health problems, but important measurement-related challenges confront efforts in this direction. This article highlights some of these challenges with reference to an intriguing measure of neural reactivity: the probe P3 response, a mid-latency brain potential evoked by an intense, unexpected acoustic-probe stimulus. Using data for a large adult sample (N=418), we report evidence that amplitude of probe P3 response to unwarned noise bursts occurring in a picture-viewing task exhibits robust, independent associations with two distinct trait constructs: weak inhibitory control (or disinhibition; DIS) and threat sensitivity (THT). Additionally, we report a selective association for THT with attentional suppression of probe P3 response during viewing of aversive pictures compared to neutral. These results point to separable elements of variance underlying the probe P3 response, including one element reflecting DIS-related variations in cognitive-elaborative processing, and others reflecting THT-related variations in aversive foreground engagement and abrupt defensive reorientation. Key measurement issues are considered in relation to these specific findings, and methodological and statistical approaches for addressing these issues are discussed in relation to advancement of a quantitatively sound, biologically informed science of psychopathology.

  4. Legal issues for German-speaking cannabis growers. Results from an online survey.

    Science.gov (United States)

    Werse, Bernd

    2016-02-01

    Cannabis prohibition can generally be regarded as the main driver for home growing of marijuana. In this paper, I discuss the impact of drug prohibition on cannabis cultivators from the three German-speaking countries: Germany, Austria and Switzerland. In particular, this refers to the questions; how illicitness influences motivations for growing; which precautionary measures are taken against the risk of discovery; how penal consequences differ in the three countries and how these aspects are linked to each other. The results come from a sample of 1578 respondents from the German-language online survey conducted following the International Cannabis Cultivation Questionnaire (ICCQ). The survey was carried out in late 2012 and early 2013. While most of the reasons for growing cannabis relate to avoiding negative consequences of prohibition, the illicitness of cannabis also plays a major role for concern about the cultivation activities as well as measures to avoid negative consequences. Swiss growers are less worried about their activity compared to respondents from Germany or Austria. The results confirm the notion that the illicitness of cannabis is the main drive for the private cultivation of the plant. At the same time, prohibition is the principal reason for concern regarding the growing activity. The severity of possible sentences seems to be linked to the degree of concern and precautionary measures. Copyright © 2015 Elsevier B.V. All rights reserved.

  5. Research Survey on Various MPPT Performance Issues to Improve the Solar PV System Efficiency

    Directory of Open Access Journals (Sweden)

    B. Pakkiraiah

    2016-01-01

    Full Text Available Nowadays in order to meet the increase in power demands and to reduce the global warming, renewable energy sources based system is used. Out of the various renewable energy sources, solar energy is the main alternative. But, compared to other sources, the solar panel system converts only 30–40% of solar irradiation into electrical energy. In order to get maximum output from a PV panel system, an extensive research has been underway for long time so as to access the performance of PV system and to investigate the various issues related to the use of solar PV system effectively. This paper therefore presents different types of PV panel systems, maximum power point tracking control algorithms, power electronic converters usage with control aspects, various controllers, filters to reduce harmonic content, and usage of battery system for PV system. Attempts have been made to highlight the current and future issues involved in the development of PV system with improved performance. A list of 185 research publications on this is appended for reference.

  6. Methodology for estimating dietary data from the semi-quantitative food frequency questionnaire of the Mexican National Health and Nutrition Survey 2012

    Directory of Open Access Journals (Sweden)

    Ivonne Ramírez-Silva

    2016-12-01

    Full Text Available Objective. To describe the methodology used to clean up and estimate dietary intake (DI data from the Semi-Quantitative Food Frequency Questionnaire (SFFQ of the Mexican National Health and Nutrition Survey 2012. Materials and methods. DI was collected through a shortterm SFFQ regarding 140 foods (from October 2011 to May 2012. Energy and nutrient intake was calculated accordingto a nutrient database constructed specifically for the SFFQ. Results. A total of 133 nutrients including energy and fiber were generated from SFFQ data. Between 4.8 and 9.6% of the survey sample was excluded as a result of the cleaning process. Valid DI data were obtained regarding energy and nutrients consumed by 1 212 pre-school children, 1 323 school children, 1 961 adolescents, 2 027 adults and 526 older adults. Conclusions. We documented the methodology used to clean up and estimate DI from the SFFQ used in national dietary assessments in Mexico.

  7. Issues Of Managerial Accounting Methodology

    Directory of Open Access Journals (Sweden)

    Barulina E.V

    2012-03-01

    Full Text Available This article deals with management accounting, its role and objectives during financial planning process. Research of on American, German and Russian scientists are also considered. Author formulates his own definitions of aims of management accounting, highlighters that object of financial accounting have to include economic costs, economic revenue and economic added value, economic interest. More  over Author defines methods of managment accounting.

  8. Survey on Security Issues in File Management in Cloud Computing Environment

    Science.gov (United States)

    Gupta, Udit

    2015-06-01

    Cloud computing has pervaded through every aspect of Information technology in past decade. It has become easier to process plethora of data, generated by various devices in real time, with the advent of cloud networks. The privacy of users data is maintained by data centers around the world and hence it has become feasible to operate on that data from lightweight portable devices. But with ease of processing comes the security aspect of the data. One such security aspect is secure file transfer either internally within cloud or externally from one cloud network to another. File management is central to cloud computing and it is paramount to address the security concerns which arise out of it. This survey paper aims to elucidate the various protocols which can be used for secure file transfer and analyze the ramifications of using each protocol.

  9. Cultural differences in survey responding: Issues and insights in the study of response biases.

    Science.gov (United States)

    Kemmelmeier, Markus

    2016-12-01

    This paper introduces the special section "Cultural differences in questionnaire responding" and discusses central topics in the research on response biases in cross-cultural survey research. Based on current conceptions of acquiescent, extreme, and socially desirable responding, the author considers current data on the correlated nature of response biases and the conditions under which different response styles they emerge. Based on evidence relating different response styles to the cultural dimension of individualism-collectivism, the paper explores how research presented as part of this special section might help resolves some tensions in this literature. The paper concludes by arguing that response styles should not be treated merely as measurement error, but as cultural behaviors in themselves.

  10. Professional issues related to obstacles to midwifery practice in the Americas: a pilot survey.

    Science.gov (United States)

    McCool, William; Guidera, Mamie; Reale, Barbara; Smith, Andrea; Koucoi, Jaclyn

    2013-08-01

    the WHO (2011) estimates that 350,000 newly trained midwives are needed internationally to meet Goal 5-- Improve Maternal Health--of the 8 Millennium Development Goals established by the United Nations in 2000. Recognizing the challenges in accomplishing this goal, it is also imperative to retain trained midwives in the profession. Little to date has been investigated regarding the factors that lead to experienced midwives leaving the profession prematurely, particularly in low resource countries. in an effort to initiate identification of barriers that limit midwives' ability to continue in practice, a pilot study was conducted with a convenience sample of 58 midwife attendees, representing 12 countries, at the International Confederation of Midwives - Americas Triennial Regional Meeting in 2010. A survey was distributed to midwife respondents to explore potential influences on work retention, including: encounters of adverse outcomes in practice; empowerment to make change in the work setting; and migration. sixty per cent of respondents reported encountering a maternal or newborn death or injury, and 10% had considered leaving the profession. Over 50% of the midwives listed three potential results that could occur after experiencing an adverse outcome in practice. These included: (a) an investigation by a governmental agency; (b) complaints about the midwife via available media; and (c) involvement in a lawsuit. The consequence most frequently cited for not enacting evidence-based changes in the workplace was resistance from obstetrical colleagues. while there are limitations to gathering data from attendees at a professional meeting, this is the first known international survey of midwives regarding factors that may contribute to their leaving the profession at a time when there is an increasing global awareness of the need for a skilled birth attendant at every birth. Copyright © 2012 Elsevier Ltd. All rights reserved.

  11. Weighting issues in recreation research and in identifying support for resource conservation management alternatives

    Science.gov (United States)

    Amy L. Sheaffer; Jay Beaman; Joseph T. O' Leary; Rebecca L. Williams; Doran M. Mason

    2001-01-01

    Sampling for research in recreation settings in an ongoing challenge. Often certain groups of users are more likely to be sampled. It is important in measuring public support for resource conservation and in understanding use of natural resources for recreation to evaluate issues of bias in survey methodologies. Important methodological issues emerged from a statewide...

  12. Survey-Based Cross-Country Comparisons Where Countries Vary in Sample Design: Issues and Solutions

    Directory of Open Access Journals (Sweden)

    Kaminska Olena

    2017-03-01

    Full Text Available In multi-national surveys, different countries usually implement different sample designs. The sample designs affect the variance of estimates of differences between countries. When making such estimates, analysts often fail to take sufficient account of sample design. This failure occurs sometimes because variables indicating stratification, clustering, or weighting are unavailable, partially available, or in a form that is unsuitable for cross-national analysis. In this article, we demonstrate how complex sample design should be taken into account when estimating differences between countries, and we provide practical guidance to analysts and to data producers on how to deal with partial or inappropriately-coded sample design indicator variables. Using EU-SILC as a case study, we evaluate the inverse misspecification effect (imeff that results from ignoring clustering or stratification, or both in a between-country comparison where countries’ sample designs differ. We present imeff for estimates of between-country differences in a number of demographic and economic variables for 19 European Union Member States. We assess the magnitude of imeff and the associated impact on standard error estimates. Our empirical findings illustrate that it is important for data producers to supply appropriate sample design indicators and for analysts to use them.

  13. A Survey on HTTPS Implementation by Android Apps: Issues and Countermeasures

    Directory of Open Access Journals (Sweden)

    Xuetao Wei

    2017-07-01

    Full Text Available As more and more sensitive data is transferred from mobile applications across unsecured channels, it seems imperative that transport layer encryption should be used in any non-trivial instance. Yet, research indicates that many Android developers do not use HTTPS or violate rules which protect user data from man-in-the-middle attacks. This paper seeks to find a root cause of the disparities between theoretical HTTPS usage and in-the-wild implementation of the protocol by looking into Android applications, online resources, and papers published by HTTPS and Android security researchers. From these resources, we extract a set of barrier categories that exist in the path of proper TLS use. These barriers not only include improper developer practices, but also server misconfiguration, lacking documentation, flaws in libraries, the fundamentally complex TLS PKI system, and a lack of consumer understanding of the importance of HTTPS. Following this discussion, we compile a set of potential solutions and patches to better secure Android HTTPS and the TLS/SSL protocol in general. We conclude our survey with gaps in current understanding of the environment and suggestions for further research.

  14. Random Sampling of Quantum States: a Survey of Methods. And Some Issues Regarding the Overparametrized Method

    Science.gov (United States)

    Maziero, Jonas

    2015-12-01

    The numerical generation of random quantum states (RQS) is an important procedure for investigations in quantum information science. Here, we review some methods that may be used for performing that task. We start by presenting a simple procedure for generating random state vectors, for which the main tool is the random sampling of unbiased discrete probability distributions (DPD). Afterwards, the creation of random density matrices is addressed. In this context, we first present the standard method, which consists in using the spectral decomposition of a quantum state for getting RQS from random DPDs and random unitary matrices. In the sequence, the Bloch vector parametrization method is described. This approach, despite being useful in several instances, is not in general convenient for RQS generation. In the last part of the article, we regard the overparametrized method (OPM) and the related Ginibre and Bures techniques. The OPM can be used to create random positive semidefinite matrices with unit trace from randomly produced general complex matrices in a simple way that is friendly for numerical implementations. We consider a physically relevant issue related to the possible domains that may be used for the real and imaginary parts of the elements of such general complex matrices. Subsequently, a too fast concentration of measure in the quantum state space that appears in this parametrization is noticed.

  15. Issues related to diagnosing oral lichen planus among oral pathologists in South India: A pilot survey.

    Science.gov (United States)

    Sanketh, D Sharathkumar; Srinivasan, Samuel Raj; Patil, Shankargouda; Ranganathan, Kannan

    2016-10-26

    In the present study, we simulated clinical scenarios by explicitly describing the history and clinical and histological features of hypothetical patients presenting with oral lichen planus (OLP), oral lichenoid lesion, and epithelial dysplasia in a self-designed questionnaire. By doing so, we aimed to elicit a diagnosis from oral pathologists and trainees, analyze their responses, appraise issues, and propose solutions regarding the diagnosis of OLP. The questionnaire was distributed to 100 oral pathologists and trainees in South India. Six questions were designed to assess awareness of the diagnostic aspects of OLP. Ten questions were hypothetical clinical scenarios (HCS) devised to evaluate respondents' knowledge of diagnostic guidelines and the criteria used by the respondents to render a diagnosis. There were 60 of 100 responses to the questionnaire. More than half the respondents were aware of the World Health Organization and modified guidelines of OLP. We observed considerable variations in diagnoses for the HCS. Our study illustrates the ambiguity in rendering an accurate diagnosis, despite adequate guidelines. Based on the responses for the HCS, we hypothesized that changes in the distribution (unilateral or bilateral) and clinical characteristic of OLP, and habits of patients, have a significant bearing on the clinical and final diagnoses of the lesion. © 2016 John Wiley & Sons Australia, Ltd.

  16. Random sampling of quantum states: a survey of methods and some issues regarding the Overparametrized Method

    Energy Technology Data Exchange (ETDEWEB)

    Maziero, Jonas, E-mail: jonas.maziero@ufsm.br [Universidade Federal de Santa Maria (UFSM), Santa Maria, RS (Brazil). Dept. de Fisica

    2015-12-15

    The numerical generation of random quantum states (RQS) is an important procedure for investigations in quantum information science. Here, we review some methods that may be used for performing that task. We start by presenting a simple procedure for generating random state vectors, for which the main tool is the random sampling of unbiased discrete probability distributions (DPD). Afterwards, the creation of random density matrices is addressed. In this context, we first present the standard method, which consists in using the spectral decomposition of a quantum state for getting RQS from random DPDs and random unitary matrices. In the sequence, the Bloch vector parametrization method is described. This approach, despite being useful in several instances, is not in general convenient for RQS generation. In the last part of the article, we regard the overparametrized method (OPM) and the related Ginibre and Bures techniques. The OPM can be used to create random positive semidefinite matrices with unit trace from randomly produced general complex matrices in a simple way that is friendly for numerical implementations. We consider a physically relevant issue related to the possible domains that may be used for the real and imaginary parts of the elements of such general complex matrices. Subsequently, a too fast concentration of measure in the quantum state space that appears in this parametrization is noticed. (author)

  17. Next-generation biofuels: Survey of emerging technologies and sustainability issues.

    Science.gov (United States)

    Zinoviev, Sergey; Müller-Langer, Franziska; Das, Piyali; Bertero, Nicolás; Fornasiero, Paolo; Kaltschmitt, Martin; Centi, Gabriele; Miertus, Stanislav

    2010-10-25

    Next-generation biofuels, such as cellulosic bioethanol, biomethane from waste, synthetic biofuels obtained via gasification of biomass, biohydrogen, and others, are currently at the center of the attention of technologists and policy makers in search of the more sustainable biofuel of tomorrow. To set realistic targets for future biofuel options, it is important to assess their sustainability according to technical, economical, and environmental measures. With this aim, the review presents a comprehensive overview of the chemistry basis and of the technology related aspects of next generation biofuel production, as well as it addresses related economic issues and environmental implications. Opportunities and limits are discussed in terms of technical applicability of existing and emerging technology options to bio-waste feedstock, and further development forecasts are made based on the existing social-economic and market situation, feedstock potentials, and other global aspects. As the latter ones are concerned, the emphasis is placed on the opportunities and challenges of developing countries in adoption of this new industry.

  18. A survey of safety issues in tree-climbing applications for forestry management

    Directory of Open Access Journals (Sweden)

    D. Longo

    2013-09-01

    Full Text Available Topping, trimming, consolidation, securing and felling are very common operations in arboriculture, in city park as well as in forests. In case of very large trees, these operations are often not possible from ground level using ladders or Mobile Elevating Work Platforms (MEWPs because of excessive height or uneven/inaccessible terrain. In past years, different people start applying techniques, materials and procedures normally used in mountaineering and caving, to climb trees and these techniques start to be applied to forestry management operations; these techniques are now worldwide used. Work activities at height, as tree-climbing for forestry management purpose, are regulated in Italy by Legislative Decree 81/08 about safety in the workplace, as this activity expose operators to fall from height and many other risks. Moreover, as this activity involves the use of specific tools, operators must be trained (with periodic refreshment and tools must been periodically checked by authorised operators. The objective of this work is to present and synthesise regulations and some technical aspects in order to allow operators to better understand different issues and general principles related to this activity.

  19. Sampling and coverage issues of telephone surveys used for collecting health information in Australia: results from a face-to-face survey from 1999 to 2008

    Science.gov (United States)

    2010-01-01

    Pages directory) may have a low impact on health estimates obtained using telephone surveys. However, researchers need to be aware that mobile only households are distinctly different to households with a landline connection, and the increase in the number of mobile-only households is not uniform across all groups in the community. Listing in the White Pages directory continues to decrease and only a small proportion of mobile only households are listed. Researchers need to be aware of these telephone sampling issues when considering telephone surveys. PMID:20738884

  20. Estimates of U.S. Commercial Building Electricity Intensity Trends: Issues Related to End-Use and Supply Surveys

    Energy Technology Data Exchange (ETDEWEB)

    Belzer, David B.

    2004-09-04

    This report examines measurement issues related to the amount of electricity used by the commercial sector in the U.S. and the implications for historical trends of commercial building electricity intensity (kWh/sq. ft. of floor space). The report compares two (Energy Information Administration) sources of data related to commercial buildings: the Commercial Building Energy Consumption Survey (CBECS) and the reporting by utilities of sales to commercial customers (survey Form-861). Over past two decades these sources suggest significantly different trend rates of growth of electricity intensity, with the supply (utility)-based estimate growing much faster than that based only upon the CBECS. The report undertakes various data adjustments in an attempt to rationalize the differences between these two sources. These adjustments deal with: 1) periodic reclassifications of industrial vs. commercial electricity usage at the state level and 2) the amount of electricity used by non-enclosed equipment (non-building use) that is classified as commercial electricity sales. In part, after applying these adjustments, there is a good correspondence between the two sources over the the past four CBECS (beginning with 1992). However, as yet, there is no satisfactory explanation of the differences between the two sources for longer periods that include the 1980s.

  1. Estimation of Nationwide Vaccination Coverage and Comparison of Interview and Telephone Survey Methodology for Estimating Vaccination Status

    Science.gov (United States)

    Park, Boyoung; Lee, Yeon-Kyeng; Cho, Lisa Y.; Go, Un Yeong; Yang, Jae Jeong; Ma, Seung Hyun; Choi, Bo-Youl; Lee, Moo-Sik; Lee, Jin-Seok; Choi, Eun Hwa; Lee, Hoan Jong

    2011-01-01

    This study compared interview and telephone surveys to select the better method for regularly estimating nationwide vaccination coverage rates in Korea. Interview surveys using multi-stage cluster sampling and telephone surveys using stratified random sampling were conducted. Nationwide coverage rates were estimated in subjects with vaccination cards in the interview survey. The interview survey relative to the telephone survey showed a higher response rate, lower missing rate, higher validity and a less difference in vaccination coverage rates between card owners and non-owners. Primary vaccination coverage rate was greater than 90% except for the fourth dose of DTaP (diphtheria/tetanus/pertussis), the third dose of polio, and the third dose of Japanese B encephalitis (JBE). The DTaP4: Polio3: MMR1 fully vaccination rate was 62.0% and BCG1:HepB3:DTaP4:Polio3:MMR1 was 59.5%. For age-appropriate vaccination, the coverage rate was 50%-80%. We concluded that the interview survey was better than the telephone survey. These results can be applied to countries with incomplete registry and decreasing rates of landline telephone coverage due to increased cell phone usage and countries. Among mandatory vaccines, efforts to increase vaccination rate for the fourth dose of DTaP, the third dose of polio, JBE and regular vaccinations at recommended periods should be conducted in Korea. PMID:21655054

  2. A methodology to address mixed AGN and starlight contributions in emission line galaxies found in the RESOLVE survey and ECO catalog

    Science.gov (United States)

    Richardson, Chris T.; Kannappan, Sheila; Bittner, Ashley; Isaac, Rohan; RESOLVE

    2017-01-01

    We present a novel methodology for modeling emission line galaxy samples that span the entire BPT diagram. Our methodology has several advantages over current modeling schemes: the free variables in the model are identical for both AGN and SF galaxies; these free variables are more closely linked to observable galaxy properties; and the ionizing spectra including an AGN and starlight are handled self-consistently rather than empirically. We show that our methodology is capable of fitting the vast majority of SDSS galaxies that fall within the traditional regions of galaxy classification on the BPT diagram. We also present current results for relaxing classification boundaries and extending our galaxies into the dwarf regime, using the REsolved Spectroscopy of a Local VolumE (RESOLVE) survey and the Environmental COntext (ECO) catalog, with special attention to compact blue E/S0s. We compare this methodology to PCA decomposition of the spectra. This work is supported by National Science Foundation awards AST-0955368 and CISE/ACI-1156614.

  3. On the extension of modern best-estimate plus uncertainy methodologies to future fast reactor and advanced fuel licensing - initial evaluation of issues

    Energy Technology Data Exchange (ETDEWEB)

    Unal, Cetin [Los Alamos National Laboratory; Mcclure, Patrick R [Los Alamos National Laboratory

    2009-01-01

    and has precedence in the NRC. The method is generically referred to as a 'Best Estimate plus Uncertainty' approach (BE+U), since the goal of the methodology is to compare the model value (best estimate) plus any uncertainty to a figure of merit like cladding temperature. The challenges for extending the BE+U (1) method for fuel qualification for an Advanced Reactor Fuel are driven by: schedule, the need for data, the data sufficiency, the identification of important phenomenon, the process of validation (with focus on the multi-scale model), and the need to produce and extended best estimate plus uncertainty methodology. This paper examines these issues an offers up a proposed set of methods that extend the current BE+U methodology address most if not all of these challenges.

  4. An EAACI “European Survey on Adverse Systemic Reactions in Allergen Immunotherapy (EASSI)”: the methodology

    DEFF Research Database (Denmark)

    Calderón, Moises A; Rodríguez Del Río, Pablo; Vidal, Carmen;

    2014-01-01

    UNLABELLED: At present, there is no European report on clinically relevant systemic reactions due to the regular use of allergen immunotherapy (AIT), administered either subcutaneously or sublingually (SCIT and SLIT, respectively) outside clinical trials. Using an electronic survey and a "harmoni......UNLABELLED: At present, there is no European report on clinically relevant systemic reactions due to the regular use of allergen immunotherapy (AIT), administered either subcutaneously or sublingually (SCIT and SLIT, respectively) outside clinical trials. Using an electronic survey...

  5. The monitoring, evaluation, reporting, and verification of climate change mitigation projects: Discussion of issues and methodologies and review of existing protocols and guidelines

    Energy Technology Data Exchange (ETDEWEB)

    Vine, E.; Sathaye, J.

    1997-12-01

    Because of concerns with the growing threat of global climate change from increasing emissions of greenhouse gases, the US and other countries are implementing, by themselves or in cooperation with one or more other nations (i.e., joint implementation), climate change mitigation projects. These projects will reduce greenhouse gas (GHG) emissions or sequester carbon, and will also result in non-GHG impacts (i.e., environmental, economic, and social impacts). Monitoring, evaluating, reporting, and verifying (MERV) guidelines are needed for these projects in order to accurately determine their net GHG, and other, benefits. Implementation of MERV guidelines is also intended to: (1) increase the reliability of data for estimating GHG benefits; (2) provide real-time data so that mid-course corrections can be made; (3) introduce consistency and transparency across project types and reporters; and (4) enhance the credibility of the projects with stakeholders. In this paper, the authors review the issues and methodologies involved in MERV activities. In addition, they review protocols and guidelines that have been developed for MERV of GHG emissions in the energy and non-energy sectors by governments, nongovernmental organizations, and international agencies. They comment on their relevance and completeness, and identify several topics that future protocols and guidelines need to address, such as (1) establishing a credible baseline; (2) accounting for impacts outside project boundaries through leakage; (3) net GHG reductions and other impacts; (4) precision of measurement; (5) MERV frequency; (6) persistence (sustainability) of savings, emissions reduction, and carbon sequestration; (7) reporting by multiple project participants; (8) verification of GHG reduction credits; (9) uncertainty and risk; (10) institutional capacity in conducting MERV; and (11) the cost of MERV.

  6. Bibliographic survey on methodologies for development of health database of the population in case of cancer occurrences; Levantamento bibliografico sobre metodologias para elaboracao de um banco de dados da saude da populacao em casos de ocorrencias de cancer

    Energy Technology Data Exchange (ETDEWEB)

    Cavinato, Christianne C.; Andrade, Delvonei A. de; Sabundjian, Gaiane, E-mail: christiannecobellocavinato@gmail.com, E-mail: delvonei@ipen.br, E-mail: gdjian@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Diz, Maria Del Pilar E., E-mail: maria.pilar@icesp.org.br [Instituto do Cancer do Estado de Sao Paulo (ICESP), Sao Paulo, SP (Brazil)

    2014-07-01

    The objective is to make a survey of existing methodologies and for the development of public health database, focusing on health (fatal and nonfatal cancer) of the population surrounding a nuclear facility, for purposes of calculating the environmental cost of the same. From methodologies found to develop this type of database, a methodology will be developed to be applied to the internal public of IPEN/CNEN-SP, Brazil, as a pre-test for the acquisition of health information desired.

  7. Design and methodology of a mixed methods follow-up study to the 2014 Ghana Demographic and Health Survey

    Science.gov (United States)

    Staveteig, Sarah; Aryeetey, Richmond; Anie-Ansah, Michael; Ahiadeke, Clement; Ortiz, Ladys

    2017-01-01

    ABSTRACT Background: The intended meaning behind responses to standard questions posed in large-scale health surveys are not always well understood. Systematic follow-up studies, particularly those which pose a few repeated questions followed by open-ended discussions, are well positioned to gauge stability and consistency of data and to shed light on the intended meaning behind survey responses. Such follow-up studies require extensive coordination and face challenges in protecting respondent confidentiality during the process of recontacting and reinterviewing participants. Objectives: We describe practical field strategies for undertaking a mixed methods follow-up study during a large-scale health survey. Methods: The study was designed as a mixed methods follow-up study embedded within the 2014 Ghana Demographic and Health Survey (GDHS). The study was implemented in 13 clusters. Android tablets were used to import reference data from the parent survey and to administer the questionnaire, which asked a mixture of closed- and open-ended questions on reproductive intentions, decision-making, and family planning. Results: Despite a number of obstacles related to recontacting respondents and concern about respondent fatigue, over 92 percent of the selected sub-sample were successfully recontacted and reinterviewed; all consented to audio recording. A confidential linkage between GDHS data, follow-up tablet data, and audio transcripts was successfully created for the purpose of analysis. Conclusions: We summarize the challenges in follow-up study design, including ethical considerations, sample size, auditing, filtering, successful use of tablets, and share lessons learned for future such follow-up surveys. PMID:28145817

  8. Development and application of the Safe Performance Index as a risk-based methodology for identifying major hazard-related safety issues in underground coal mines

    Science.gov (United States)

    Kinilakodi, Harisha

    The underground coal mining industry has been under constant watch due to the high risk involved in its activities, and scrutiny increased because of the disasters that occurred in 2006-07. In the aftermath of the incidents, the U.S. Congress passed the Mine Improvement and New Emergency Response Act of 2006 (MINER Act), which strengthened the existing regulations and mandated new laws to address the various issues related to a safe working environment in the mines. Risk analysis in any form should be done on a regular basis to tackle the possibility of unwanted major hazard-related events such as explosions, outbursts, airbursts, inundations, spontaneous combustion, and roof fall instabilities. One of the responses by the Mine Safety and Health Administration (MSHA) in 2007 involved a new pattern of violations (POV) process to target mines with a poor safety performance, specifically to improve their safety. However, the 2010 disaster (worst in 40 years) gave an impression that the collective effort of the industry, federal/state agencies, and researchers to achieve the goal of zero fatalities and serious injuries has gone awry. The Safe Performance Index (SPI) methodology developed in this research is a straight-forward, effective, transparent, and reproducible approach that can help in identifying and addressing some of the existing issues while targeting (poor safety performance) mines which need help. It combines three injury and three citation measures that are scaled to have an equal mean (5.0) in a balanced way with proportionate weighting factors (0.05, 0.15, 0.30) and overall normalizing factor (15) into a mine safety performance evaluation tool. It can be used to assess the relative safety-related risk of mines, including by mine-size category. Using 2008 and 2009 data, comparisons were made of SPI-associated, normalized safety performance measures across mine-size categories, with emphasis on small-mine safety performance as compared to large- and

  9. Health-related quality of life in non-small-cell lung cancer: An update of a systematic review on methodologic issues in randomized controlled trials

    NARCIS (Netherlands)

    L. Claassens (Lily); J. van Meerbeeck (Jan); C. Coens (Corneel); C. Quinten (Chantal); I. Ghislain (Irina); E.K. Sloan (Elizabeth); X.S. Wang (Xin Shelly); G. Velikova (Galina); A. Bottomley (Andrew)

    2011-01-01

    textabstractPurpose This study is an update of a systematic review of health-related quality-of-life (HRQOL) methodology reporting in non-small-cell lung cancer (NSCLC) randomized controlled trials (RCTs). The objective was to evaluate HRQOL methodology reporting over the last decade and its benefit

  10. Critical review of methodology and application of risk ranking for prioritisation of food and feed related issues, on the basis of the size of anticipated health impact

    NARCIS (Netherlands)

    Fels-Klerx, van der H.J.; Asselt, van E.D.; Raley, M.; Poulsen, M.; Korsgaard, H.; Bredsdorff, L.; Nauta, M.; Flari, V.; Agostino, D' M.; Coles, D.G.; Frewer, L.J.

    2015-01-01

    This study aimed to critically review methodologies for ranking of risks related to feed/food safety and nutritional hazards, on the basis of their anticipated human health impact. An extensive systematic literature review was performed to identify and characterize the available methodologies for ri

  11. UAV-Based Photogrammetry and Integrated Technologies for Architectural Applications—Methodological Strategies for the After-Quake Survey of Vertical Structures in Mantua (Italy

    Directory of Open Access Journals (Sweden)

    Cristiana Achille

    2015-06-01

    Full Text Available This paper examines the survey of tall buildings in an emergency context like in the case of post-seismic events. The after-earthquake survey has to guarantee time-savings, high precision and security during the operational stages. The main goal is to optimize the application of methodologies based on acquisition and automatic elaborations of photogrammetric data even with the use of Unmanned Aerial Vehicle (UAV systems in order to provide fast and low cost operations. The suggested methods integrate new technologies with commonly used technologies like TLS and topographic acquisition. The value of the photogrammetric application is demonstrated by a test case, based on the comparison of acquisition, calibration and 3D modeling results in case of use of a laser scanner, metric camera and amateur reflex camera. The test would help us to demonstrate the efficiency of image based methods in the acquisition of complex architecture. The case study is Santa Barbara Bell tower in Mantua. The applied survey solution allows a complete 3D database of the complex architectural structure to be obtained for the extraction of all the information needed for significant intervention. This demonstrates the applicability of the photogrammetry using UAV for the survey of vertical structures, complex buildings and difficult accessible architectural parts, providing high precision results.

  12. UAV-Based Photogrammetry and Integrated Technologies for Architectural Applications--Methodological Strategies for the After-Quake Survey of Vertical Structures in Mantua (Italy).

    Science.gov (United States)

    Achille, Cristiana; Adami, Andrea; Chiarini, Silvia; Cremonesi, Stefano; Fassi, Francesco; Fregonese, Luigi; Taffurelli, Laura

    2015-06-30

    This paper examines the survey of tall buildings in an emergency context like in the case of post-seismic events. The after-earthquake survey has to guarantee time-savings, high precision and security during the operational stages. The main goal is to optimize the application of methodologies based on acquisition and automatic elaborations of photogrammetric data even with the use of Unmanned Aerial Vehicle (UAV) systems in order to provide fast and low cost operations. The suggested methods integrate new technologies with commonly used technologies like TLS and topographic acquisition. The value of the photogrammetric application is demonstrated by a test case, based on the comparison of acquisition, calibration and 3D modeling results in case of use of a laser scanner, metric camera and amateur reflex camera. The test would help us to demonstrate the efficiency of image based methods in the acquisition of complex architecture. The case study is Santa Barbara Bell tower in Mantua. The applied survey solution allows a complete 3D database of the complex architectural structure to be obtained for the extraction of all the information needed for significant intervention. This demonstrates the applicability of the photogrammetry using UAV for the survey of vertical structures, complex buildings and difficult accessible architectural parts, providing high precision results.

  13. UAV-Based Photogrammetry and Integrated Technologies for Architectural Applications—Methodological Strategies for the After-Quake Survey of Vertical Structures in Mantua (Italy)

    Science.gov (United States)

    Achille, Cristiana; Adami, Andrea; Chiarini, Silvia; Cremonesi, Stefano; Fassi, Francesco; Fregonese, Luigi; Taffurelli, Laura

    2015-01-01

    This paper examines the survey of tall buildings in an emergency context like in the case of post-seismic events. The after-earthquake survey has to guarantee time-savings, high precision and security during the operational stages. The main goal is to optimize the application of methodologies based on acquisition and automatic elaborations of photogrammetric data even with the use of Unmanned Aerial Vehicle (UAV) systems in order to provide fast and low cost operations. The suggested methods integrate new technologies with commonly used technologies like TLS and topographic acquisition. The value of the photogrammetric application is demonstrated by a test case, based on the comparison of acquisition, calibration and 3D modeling results in case of use of a laser scanner, metric camera and amateur reflex camera. The test would help us to demonstrate the efficiency of image based methods in the acquisition of complex architecture. The case study is Santa Barbara Bell tower in Mantua. The applied survey solution allows a complete 3D database of the complex architectural structure to be obtained for the extraction of all the information needed for significant intervention. This demonstrates the applicability of the photogrammetry using UAV for the survey of vertical structures, complex buildings and difficult accessible architectural parts, providing high precision results. PMID:26134108

  14. Objectives and methodology of Romanian SEPHAR II Survey. Project for comparing the prevalence and control of cardiovascular risk factors in two East-European countries: Romania and Poland

    Science.gov (United States)

    Dorobantu, Maria; Tautu, Oana-Florentina; Ghiorghe, Silviu; Badila, Elisabeta; Dana, Minca; Dobreanu, Minodora; Baila, Ilarie; Rutkowski, Marcin; Zdrojewski, Tomasz

    2015-01-01

    Introduction Comparing results of representative surveys conducted in different East-European countries could contribute to a better understanding and management of cardiovascular risk factors, offering grounds for the development of health policies addressing the special needs of this high cardiovascular risk region of Europe. The aim of this paper was to describe the methodology on which the comparison between the Romanian survey SEPHAR II and the Polish survey NATPOL 2011 results is based. Material and methods SEPHAR II, like NATPOL 2011, is a cross-sectional survey conducted on a representative sample of the adult Romanian population (18 to 80 years) and encompasses two visits with the following components: completing the study questionnaire, blood pressure and anthropometric measurements, and collection of blood and urine samples. Results From a total of 2223 subjects found at 2860 visited addresses, 2044 subjects gave written consent but only 1975 subjects had eligible data for the analysis, accounting for a response rate of 69.06%. Additionally we excluded 11 subjects who were 80 years of age (NATPOL 2011 included adult subjects up to 79 years). Therefore, the sample size included in the statistical analysis is 1964. It has similar age groups and gender structure as the Romanian population aged 18–79 years from the last census available at the moment of conducting the survey (weight adjustments for epidemiological analyses range from 0.48 to 8.7). Conclusions Sharing many similarities, the results of SEPHAR II and NATPOL 2011 surveys can be compared by a proper statistical method offering crucial information regarding cardiovascular risk factors in a high-cardiovascular risk European region. PMID:26322082

  15. Pilot survey of HIV risk and contextual problems and issues in Mexican/Latino migrant day laborers.

    Science.gov (United States)

    Organista, Kurt C; Kubo, Ai

    2005-10-01

    A preliminary survey was conducted with 102 migrant day laborers (MDLs) to assess HIV risk and related contextual problems and issues. These men were primarily Mexican, of low SES background, low in acculturation to the United States, and their income ranged from $100 and $400 a week, 40% of which is sent back home. The psychosocial context of HIV risk included concerns expressed about lack of money and employment, followed by racism, social isolation, sadness and loneliness. High rates of alcohol use and binge drinking that co-occur with sexual activities were reported. While only 7% of MDLs reported illegal injection drug use, needles were frequently shared without bleach cleaning. Men generally did not carry condoms and knowledge of proper condom use was poor. For the most common form of sex reported, vaginal sex, condom use was infrequent. However, men did report confidence in being able to insist on condom use in challenging sexual situations, and they also reported fairly frequent pro-condom attitudes and behaviors within their social circles. Slightly over half of the men reported sexual activity with female partners, during the past 2 months. These female partners were almost evenly divided into regular sex partners, including spouses, and riskier partners such as one time only sex partners, prostitutes, and multiple sex partners. Results also indicated encouraging efforts by MDLs to reduce risk with risky partners (e.g., more condom use).

  16. Predictors of Smoking and Smokeless Tobacco Use in College Students: A Preliminary Study Using Web-Based Survey Methodology

    Science.gov (United States)

    Morrell, Holly E. R.; Cohen, Lee M.; Bacchi, Donna; West, Joel

    2005-01-01

    Cigarette smoking and smokeless tobacco (SLT) use are associated with numerous health hazards and economic costs, and rates of tobacco use have recently increased among young adults. In this study, the authors compared predictors of smoking and SLT use among college students (N = 21,410) from 13 Texas universities using a Web-based survey. Results…

  17. Human resources issues and Australian Disaster Medical Assistance Teams: results of a national survey of team members

    Directory of Open Access Journals (Sweden)

    Peter Aitken

    2012-05-01

    Full Text Available Background: Calls for disaster medical assistance teams (DMATs are likely to continue in response to international disasters. As part of a national survey, this study was designed to evaluate Australian DMAT experience in relation to the human resources issues associated with deployment. Methods: Data was collected via an anonymous mailed survey distributed via State and Territory representatives on the Australian Health Protection Committee, who identified team members associated with Australian DMAT deployments from the 2004 South East Asian Tsunami disaster. Results: The response rate for this survey was 50% (59/118. Most personnel had deployed to the Asian Tsunami affected areas with DMAT members having significant clinical and international experience. While all except one respondent stated they received a full orientation prior to deployment, only 34% of respondents (20/59 felt their role was clearly defined pre deployment. Approximately 56% (33/59 felt their actual role matched their intended role and that their clinical background was well suited to their tasks. Most respondents were prepared to be available for deployment for 1 month (34%, 20/59. The most common period of notice needed to deploy was 6–12 hours for 29% (17/59 followed by 12–24 hours for 24% (14/59. The preferred period of overseas deployment was 14–21 days (46%, 27/59 followed by 1 month (25%, 15/59 and the optimum shift period was felt to be 12 hours by 66% (39/59. The majority felt that there was both adequate pay (71%, 42/59 and adequate indemnity (66%, 39/59. Almost half (49%, 29/59 stated it was better to work with people from the same hospital and, while most felt their deployment could be easily covered by staff from their workplace (56%, 33/59 and caused an inconvenience to their colleagues (51%, 30/59, it was less likely to interrupt service delivery in their workplace (10%, 6/59 or cause an inconvenience to patients (9%, 5/59. Deployment was felt to

  18. Expectations for the methodology and translation of animal research: a survey of the general public, medical students and animal researchers in North America.

    Science.gov (United States)

    Joffe, Ari R; Bara, Meredith; Anton, Natalie; Nobis, Nathan

    2016-09-01

    To determine what are considered acceptable standards for animal research (AR) methodology and translation rate to humans, a validated survey was sent to: a) a sample of the general public, via Sampling Survey International (SSI; Canada), Amazon Mechanical Turk (AMT; USA), a Canadian city festival (CF) and a Canadian children's hospital (CH); b) a sample of medical students (two first-year classes); and c) a sample of scientists (corresponding authors and academic paediatricians). There were 1379 responses from the general public sample (SSI, n = 557; AMT, n = 590; CF, n = 195; CH, n = 102), 205/330 (62%) medical student responses, and 23/323 (7%, too few to report) scientist responses. Asked about methodological quality, most of the general public and medical student respondents expect that: AR is of high quality (e.g. anaesthesia and analgesia are monitored, even overnight, and 'humane' euthanasia, optimal statistical design, comprehensive literature review, randomisation and blinding, are performed), and costs and difficulty are not acceptable justifications for lower quality (e.g. costs of expert consultation, or more laboratory staff). Asked about their expectations of translation to humans (of toxicity, carcinogenicity, teratogenicity and treatment findings), most expect translation more than 60% of the time. If translation occurred less than 20% of the time, a minority disagreed that this would "significantly reduce your support for AR". Medical students were more supportive of AR, even if translation occurred less than 20% of the time. Expectations for AR are much higher than empirical data show to have been achieved.

  19. Methodological issues related to studies of lead mobilization during menopause Consideraciones metodológicas relacionadas con estudios sobre movilización de plomo durante la menopausia

    Directory of Open Access Journals (Sweden)

    Gertrud S. Berkowitz

    1999-11-01

    Full Text Available While there has been a substantial decline in lead exposure in the United States during the past two decades, mobilization of existing lead stored in bone potentially represents an important endogenous source of exposure for menopausal women. It has been hypothesized that lead may be mobilized from skeletal stores during conditions of high bone turnover, such as during menopause. However, such mobilization has not been documented in prospective studies. This discussion is focussed on some of the methodological difficulties to be anticipated in longitudinal studies of lead mobilization specific to menopause and the issues that need to be taken into account when evaluating the results of such studies. To evaluate whether lead mobilization occurs during menopause, a prospective repeated measures design is needed using X-ray fluorescence analysis of lead in bone and serial measurements of blood lead. Potential confounders and effect modifiers also need to be taken into account in the statistical analysis.Mientras que la exposición a plomo ha declinado sustancialmente en Estados Unidos durante las dos décadas pasadas, la mobilización del plomo almacenado en los huesos representa potencialmente una importante fuente de exposición endógena en mujeres menopáusicas. No obstante, tal movilización no ha sido documentada por estudios prospectivos. La presente discusión se enfoca en algunas de las dificultades metodológicas a se anticipadas en estudios longitudinales de mobilización de plomo específicamente en la menopausia, y los aspectos que necesitan ser considerados cuando se evalúan los resultados de tales estudios. Para evaluar si durante la menopausia el plomo es mobilizado, se requiere de un diseño prospectivo con mediciones repetidas utilizando análisis de fluorescencia de rayos-X para determinar el plomo en hueso y una serie de mediciones de plomo en sangre. Los potenciales confusores y modificadores del efecto también deben tomarse

  20. Some Findings Concerning Requirements in Agile Methodologies

    Science.gov (United States)

    Rodríguez, Pilar; Yagüe, Agustín; Alarcón, Pedro P.; Garbajosa, Juan

    Agile methods have appeared as an attractive alternative to conventional methodologies. These methods try to reduce the time to market and, indirectly, the cost of the product through flexible development and deep customer involvement. The processes related to requirements have been extensively studied in literature, in most cases in the frame of conventional methods. However, conclusions of conventional methodologies could not be necessarily valid for Agile; in some issues, conventional and Agile processes are radically different. As recent surveys report, inadequate project requirements is one of the most conflictive issues in agile approaches and better understanding about this is needed. This paper describes some findings concerning requirements activities in a project developed under an agile methodology. The project intended to evolve an existing product and, therefore, some background information was available. The major difficulties encountered were related to non-functional needs and management of requirements dependencies.

  1. Southern Nevada residents` views about the Yucca Mountain high-level nuclear waste repository and related issues: A comparative analysis of urban and rural survey data

    Energy Technology Data Exchange (ETDEWEB)

    Krannich, R.S.; Little, R.L. [Utah State Univ., Logan, UT (United States); Mushkatel, A.; Pijawka, K.D.; Jones, P. [Arizona State Univ., Tempe, AZ (United States)

    1991-10-01

    two separate surveys were undertaken in 1988 to ascertain southern Nevadans` views about the Yucca Mountain repository and related issues. The first of these studies focused on the attitudes and perceptions of residents in the Las Vegas metropolitan area. The second study addressed similar issues, but focused on the views of residents in six rural communities in three counties adjacent to the Yucca Mountain site. However, parallel findings from the two data sets have not been jointly analyzed in order to identify ways in which the views and orientations of residents in the rural and urban study areas may be similar or different. The purpose of this report is to develop and present a comparative assessment of selected issues addressed in the rural and urban surveys. Because both urban and rural populations would potentially be impacted by the Yucca Mountain repository, such an analysis will provide important insights into possible repository impacts on the well-being of residents throughout southern Nevada.

  2. The Delphi Method : methodological issues arising from a study examining factors influencing the publication or non-Publication of mental health nursing research

    OpenAIRE

    Ashmore, Russell; Flanagan, Tracy; McInnes, Doug; Banks, David

    2016-01-01

    Purpose – The paper describes how the classic Delphi method can be adapted and structured to ensure that specific research questions are clearly addressed. \\ud \\ud Design/methodology/approach – As part of a larger mixed method project, a modified Delphi study was undertaken to explore factors influencing publication and non-publication of mental health nursing research. \\ud \\ud Findings - This paper reports brief findings from the Delphi study. However, its main focus is the methodological is...

  3. The Carnegie-Spitzer-IMACS Redshift Survey of Galaxy Evolution since z=1.5: I. Description and Methodology and More!

    CERN Document Server

    Kelson, Daniel D; Dressler, Alan; McCarthy, Patrick J; Shectman, Stephen A; Mulchaey, John S; Villanueva, Edward V; Crane, Jeffrey D; Quadri, Ryan F

    2014-01-01

    We describe the Carnegie-Spitzer-IMACS (CSI) Survey, a wide-field, near-IR selected spectrophotometric redshift survey with IMACS on Magellan-Baade. CSI uses a flux-limited sample of galaxies in Spitzer IRAC 3.6micron imaging of SWIRE fields to efficiently trace the stellar mass of average galaxies to z~1.5. This paper provides an overview of the survey selection, observations, and processing of the photometry and spectrophotometry. We also describe the analysis of the data: new methods of fitting synthetic SEDs are used to derive redshifts, stellar masses, emission line luminosities, and coarse information on recent star-formation. Our unique methodology for analyzing low-dispersion spectra taken with multilayer prisms in IMACS, combined with panchromatic photometry from the ultraviolet to the IR, has yielded high quality redshifts for 43,347 galaxies in our first 5.3 sq. degs of the SWIRE XMM-LSS field. A new approach to assessing data quality is also described, and three different approaches are used to es...

  4. 《中国小说史略》的方法论特色%Methodological characteristics of"Chinese novels history survey"

    Institute of Scientific and Technical Information of China (English)

    张应怀

    2014-01-01

    Mr. Lu Xun's"Chinese novel history survey"is a brilliant exposition, a unique approach in the novel history books. In this paper, through the investigation of two kinds of Chinese and western research methods in the"Chinese novel history survey", to illustrate the traditional literature theory and modern methodology of"Chinese novel history survey"academic value has an important influence.%鲁迅先生的《中国小说史略》是一部论述精辟、方法独到的小说史专著。本文通过考察中西两种研究方法在《中国小说史略》的具体运用情况,来说明传统文献学理论和现代方法论对《中国小说史略》学术价值的生成产生了重要影响。

  5. General practitioner views about discussing sexual issues with patients with coronary heart disease: a national survey in Ireland

    LENUS (Irish Health Repository)

    Byrne, Molly

    2010-05-25

    Abstract Background Sexual problems are common among people with coronary heart disease and can adversely affect patients\\' quality of life. GPs are ideally placed to deal with these problems. Research suggests that GPs are reluctant to address sexual problems but little is known about what currently takes place in practice. The aim of this study was to examine GPs\\' self-reported behaviour and attitudes to discussing sexual problems with people with coronary heart disease. Method Design: A cross-sectional survey which administered 230 postal questionnaires to a nationally representative, stratified random sample of GPs in the Republic of Ireland. GPs were asked about current practice, knowledge, awareness and confidence in dealing with sexual problems, barriers to addressing sexual problems, and about improving services in this area. Results Responses were available for 61 GPs (27% response rate). Seventy percent of GPs reported that they rarely or never discussed sexual problems with coronary patients. While all GPs believed addressing sexual problems was important, many GPs reported lacking awareness, knowledge and confidence in addressing sexual problems. The main barriers were lack of time, feeling the patient wasn\\'t ready and lack of training in the area. GPs wanted more training and guidelines for practice. Conclusions There is currently no standardised protocol for GPs for dealing with sexual problems among coronary patients. Awareness of these issues appears to be low among GPs. Services could be improved by developing practice guidelines for brief, effective actions or assessments, providing training in the area and improving information resources and support services for referral.

  6. General practitioner views about discussing sexual issues with patients with coronary heart disease: a national survey in Ireland

    Directory of Open Access Journals (Sweden)

    McGee Hannah M

    2010-05-01

    Full Text Available Abstract Background Sexual problems are common among people with coronary heart disease and can adversely affect patients' quality of life. GPs are ideally placed to deal with these problems. Research suggests that GPs are reluctant to address sexual problems but little is known about what currently takes place in practice. The aim of this study was to examine GPs' self-reported behaviour and attitudes to discussing sexual problems with people with coronary heart disease. Method Design: A cross-sectional survey which administered 230 postal questionnaires to a nationally representative, stratified random sample of GPs in the Republic of Ireland. GPs were asked about current practice, knowledge, awareness and confidence in dealing with sexual problems, barriers to addressing sexual problems, and about improving services in this area. Results Responses were available for 61 GPs (27% response rate. Seventy percent of GPs reported that they rarely or never discussed sexual problems with coronary patients. While all GPs believed addressing sexual problems was important, many GPs reported lacking awareness, knowledge and confidence in addressing sexual problems. The main barriers were lack of time, feeling the patient wasn't ready and lack of training in the area. GPs wanted more training and guidelines for practice. Conclusions There is currently no standardised protocol for GPs for dealing with sexual problems among coronary patients. Awareness of these issues appears to be low among GPs. Services could be improved by developing practice guidelines for brief, effective actions or assessments, providing training in the area and improving information resources and support services for referral.

  7. The network adjustment aimed for the campaigned gravity survey using a Bayesian approach: methodology and model test

    Science.gov (United States)

    Chen, Shi; Liao, Xu; Ma, Hongsheng; Zhou, Longquan; Wang, Xingzhou; Zhuang, Jiancang

    2017-04-01

    The relative gravimeter, which generally uses zero-length springs as the gravity senor, is still as the first choice in the field of terrestrial gravity measurement because of its efficiency and low-cost. Because the drift rate of instrument can be changed with the time and meter, it is necessary for estimating the drift rate to back to the base or known gravity value stations for repeated measurement at regular hour's interval during the practical survey. However, the campaigned gravity survey for the large-scale region, which the distance of stations is far away from serval or tens kilometers, the frequent back to close measurement will highly reduce the gravity survey efficiency and extremely time-consuming. In this paper, we proposed a new gravity data adjustment method for estimating the meter drift by means of Bayesian statistical interference. In our approach, we assumed the change of drift rate is a smooth function depend on the time-lapse. The trade-off parameters were be used to control the fitting residuals. We employed the Akaike's Bayesian Information Criterion (ABIC) for the estimated these trade-off parameters. The comparison and analysis of simulated data between the classical and Bayesian adjustment show that our method is robust and has self-adaptive ability for facing to the unregularly non-linear meter drift. At last, we used this novel approach to process the realistic campaigned gravity data at the North China. Our adjustment method is suitable to recover the time-varied drift rate function of each meter, and also to detect the meter abnormal drift during the gravity survey. We also defined an alternative error estimation for the inversed gravity value at the each station on the basis of the marginal distribution theory. Acknowledgment: This research is supported by Science Foundation Institute of Geophysics, CEA from the Ministry of Science and Technology of China (Nos. DQJB16A05; DQJB16B07), China National Special Fund for Earthquake

  8. Research Methodologies in Supply Chain Management

    DEFF Research Database (Denmark)

    Kotzab, Herbert

    . Within the 36 chapters 70 authors bring together a rich selection of theoretical and practical examples of how research methodologies are applied in supply chain management. The book contains papers on theoretical implications as well as papers on a range of key methods, such as modelling, surveys, case......While supply chain management has risen to great prominence in recent year, there are hardly related developments in research methodologies. Yet, as supply chains cover more than one company, one central issue is how to collect and analyse data along the whole or relevant part of the supply chain...

  9. Joint analysis of galaxy-galaxy lensing and galaxy clustering: Methodology and forecasts for Dark Energy Survey

    Energy Technology Data Exchange (ETDEWEB)

    Park, Y.; Krause, E.; Dodelson, S.; Jain, B.; Amara, A.; Becker, M. R.; Bridle, S. L.; Clampitt, J.; Crocce, M.; Fosalba, P.; Gaztanaga, E.; Honscheid, K.; Rozo, E.; Sobreira, F.; Sánchez, C.; Wechsler, R. H.; Abbott, T.; Abdalla, F. B.; Allam, S.; Benoit-Lévy, A.; Bertin, E.; Brooks, D.; Buckley-Geer, E.; Burke, D. L.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Castander, F. J.; da Costa, L. N.; DePoy, D. L.; Desai, S.; Dietrich, J. P.; Doel, P.; Eifler, T. F.; Fausti Neto, A.; Fernandez, E.; Finley, D. A.; Flaugher, B.; Gerdes, D. W.; Gruen, D.; Gruendl, R. A.; Gutierrez, G.; James, D. J.; Kent, S.; Kuehn, K.; Kuropatkin, N.; Lima, M.; Maia, M. A. G.; Marshall, J. L.; Melchior, P.; Miller, C. J.; Miquel, R.; Nichol, R. C.; Ogando, R.; Plazas, A. A.; Roe, N.; Romer, A. K.; Rykoff, E. S.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Sevilla-Noarbe, I.; Soares-Santos, M.; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; Thaler, J.; Vikram, V.; Walker, A. R.; Weller, J.; Zuntz, J.

    2016-09-30

    The joint analysis of galaxy-galaxy lensing and galaxy clustering is a promising method for inferring the growth function of large scale structure. Our analysis will be carried out on data from the Dark Energy Survey (DES), with its measurements of both the distribution of galaxies and the tangential shears of background galaxies induced by these foreground lenses. We develop a practical approach to modeling the assumptions and systematic effects affecting small scale lensing, which provides halo masses, and large scale galaxy clustering. Introducing parameters that characterize the halo occupation distribution (HOD), photometric redshift uncertainties, and shear measurement errors, we study how external priors on different subsets of these parameters affect our growth constraints. Degeneracies within the HOD model, as well as between the HOD and the growth function, are identified as the dominant source of complication, with other systematic effects sub-dominant. The impact of HOD parameters and their degeneracies necessitate the detailed joint modeling of the galaxy sample that we employ. Finally, we conclude that DES data will provide powerful constraints on the evolution of structure growth in the universe, conservatively/optimistically constraining the growth function to 7.9%/4.8% with its first-year data that covered over 1000 square degrees, and to 3.9%/2.3% with its full five-year data that will survey 5000 square degrees, including both statistical and systematic uncertainties.

  10. Joint analysis of galaxy-galaxy lensing and galaxy clustering: Methodology and forecasts for Dark Energy Survey

    Science.gov (United States)

    Park, Y.; Krause, E.; Dodelson, S.; Jain, B.; Amara, A.; Becker, M. R.; Bridle, S. L.; Clampitt, J.; Crocce, M.; Fosalba, P.; Gaztanaga, E.; Honscheid, K.; Rozo, E.; Sobreira, F.; Sánchez, C.; Wechsler, R. H.; Abbott, T.; Abdalla, F. B.; Allam, S.; Benoit-Lévy, A.; Bertin, E.; Brooks, D.; Buckley-Geer, E.; Burke, D. L.; Carnero Rosell, A.; Carrasco Kind, M.; Carretero, J.; Castander, F. J.; da Costa, L. N.; DePoy, D. L.; Desai, S.; Dietrich, J. P.; Doel, P.; Eifler, T. F.; Fausti Neto, A.; Fernandez, E.; Finley, D. A.; Flaugher, B.; Gerdes, D. W.; Gruen, D.; Gruendl, R. A.; Gutierrez, G.; James, D. J.; Kent, S.; Kuehn, K.; Kuropatkin, N.; Lima, M.; Maia, M. A. G.; Marshall, J. L.; Melchior, P.; Miller, C. J.; Miquel, R.; Nichol, R. C.; Ogando, R.; Plazas, A. A.; Roe, N.; Romer, A. K.; Rykoff, E. S.; Sanchez, E.; Scarpine, V.; Schubnell, M.; Sevilla-Noarbe, I.; Soares-Santos, M.; Suchyta, E.; Swanson, M. E. C.; Tarle, G.; Thaler, J.; Vikram, V.; Walker, A. R.; Weller, J.; Zuntz, J.; DES Collaboration

    2016-09-01

    The joint analysis of galaxy-galaxy lensing and galaxy clustering is a promising method for inferring the growth function of large-scale structure. Anticipating a near future application of this analysis to Dark Energy Survey (DES) measurements of galaxy positions and shapes, we develop a practical approach to modeling the assumptions and systematic effects affecting the joint analysis of small-scale galaxy-galaxy lensing and large-scale galaxy clustering. Introducing parameters that characterize the halo occupation distribution (HOD), photometric redshift uncertainties, and shear measurement errors, we study how external priors on different subsets of these parameters affect our growth constraints. Degeneracies within the HOD model, as well as between the HOD and the growth function, are identified as the dominant source of complication, with other systematic effects being subdominant. The impact of HOD parameters and their degeneracies necessitate the detailed joint modeling of the galaxy sample that we employ. We conclude that DES data will provide powerful constraints on the evolution of structure growth in the Universe, conservatively/optimistically constraining the growth function to 7.9%/4.8% with its first-year data that cover over 1000 square degrees, and to 3.9%/2.3% with its full five-year data that will survey 5000 square degrees, including both statistical and systematic uncertainties.

  11. Design methodology of Dutch banknotes

    Science.gov (United States)

    de Heij, Hans A. M.

    2000-04-01

    Since the introduction of a design methodology for Dutch banknotes, the quality of Dutch paper currency has improved in more than one way. The methodology is question provides for (i) a design policy, which helps fix clear objectives; (ii) design management, to ensure a smooth cooperation between the graphic designer, printer, papermaker an central bank, (iii) a program of requirements, a banknote development guideline for all parties involved. This systematic approach enables an objective selection of design proposals, including security features. Furthermore, the project manager obtains regular feedback from the public by conducting market surveys. Each new design of a Netherlands Guilder banknote issued by the Nederlandsche Bank of the past 50 years has been an improvement on its predecessor in terms of value recognition, security and durability.

  12. SRAM-Based FPGA Systems for Safety-Critical Applications:A Survey on Design Standards and Proposed Methodologies

    Institute of Scientific and Technical Information of China (English)

    Cinzia Bernardeschi; Luca Cassano; Andrea Domenici

    2015-01-01

    As the ASIC design cost becomes affordable only for very large-scale productions, the FPGA technology is currently becoming the leading technology for those applications that require a small-scale production. FPGAs can be considered as a technology crossing between hardware and software. Only a small-number of standards for the design of safety-critical systems give guidelines and recommendations that take the peculiarities of the FPGA technology into consideration. The main contribution of this paper is an overview of the existing design standards that regulate the design and verification of FPGA-based systems in safety-critical application fields. Moreover, the paper proposes a survey of significant published research proposals and existing industrial guidelines about the topic, and collects and reports about some lessons learned from industrial and research pro jects involving the use of FPGA devices.

  13. Reporting, handling and assessing the risk of bias associated with missing participant data in systematic reviews: a methodological survey.

    Science.gov (United States)

    Akl, Elie A; Carrasco-Labra, Alonso; Brignardello-Petersen, Romina; Neumann, Ignacio; Johnston, Bradley C; Sun, Xin; Briel, Matthias; Busse, Jason W; Ebrahim, Shanil; Granados, Carlos E; Iorio, Alfonso; Irfan, Affan; Martínez García, Laura; Mustafa, Reem A; Ramírez-Morera, Anggie; Selva, Anna; Solà, Ivan; Sanabria, Andrea Juliana; Tikkinen, Kari A O; Vandvik, Per O; Vernooij, Robin W M; Zazueta, Oscar E; Zhou, Qi; Guyatt, Gordon H; Alonso-Coello, Pablo

    2015-09-30

    To describe how systematic reviewers are reporting missing data for dichotomous outcomes, handling them in the analysis and assessing the risk of associated bias. We searched MEDLINE and the Cochrane Database of Systematic Reviews for systematic reviews of randomised trials published in 2010, and reporting a meta-analysis of a dichotomous outcome. We randomly selected 98 Cochrane and 104 non-Cochrane systematic reviews. Teams of 2 reviewers selected eligible studies and abstracted data independently and in duplicate using standardised, piloted forms with accompanying instructions. We conducted regression analyses to explore factors associated with using complete case analysis and with judging the risk of bias associated with missing participant data. Of Cochrane and non-Cochrane reviews, 47% and 7% (previews) and assuming no participants with missing data had the event (4%). The use of complete case analysis was associated only with Cochrane reviews (relative to non-Cochrane: OR=7.25; 95% CI 1.58 to 33.3, p=0.01). 65% of reviews assessed risk of bias associated with missing data; this was associated with Cochrane reviews (relative to non-Cochrane: OR=6.63; 95% CI 2.50 to 17.57, p=0.0001), and the use of the Grading of Recommendations Assessment, Development and Evaluation (GRADE) methodology (OR=5.02; 95% CI 1.02 to 24.75, p=0.047). Though Cochrane reviews are somewhat less problematic, most Cochrane and non-Cochrane systematic reviews fail to adequately report and handle missing data, potentially resulting in misleading judgements regarding risk of bias. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  14. Issues concerning Migrant Workers’ Participation in the New Rural Cooperative Medical System and Countermeasures——Based on the Survey in Wenjiang District and Jintang County, Chengdu City

    Institute of Scientific and Technical Information of China (English)

    2012-01-01

    We conduct questionnaire survey of migrant workers in Wenjiang District and Jintang County of Chengdu City,respectively,using the method of key-point investigation and the sampling survey. We describe the status quo of the sample migrant workers’ participation in the New Rural Cooperative Medical System,analyze the issues concerning migrant workers’ participation in the New Rural Cooperative Medical System,and put forward the countermeasures and recommendations as follows: using many types of medical insurance; establishing universal reimbursement points in strange land and premium-paying system for migrant workers; making the proportion of reimbursement open and transparent; establishing and improving medicare security system for migrant workers.

  15. Social Enterprise and the Measurement of Social Value: Methodological Issues with the Calculation and Application of the Social Return on Investment

    Science.gov (United States)

    Ryan, Patrick W.; Lyne, Isaac

    2008-01-01

    This article considers the methodological challenge of quantifying the social value generated through social enterprise activity. It argues that in the context of increasing enthusiasm for social enterprise as a mechanism for delivering social services and for tackling social exclusion, it is increasingly necessary to be able to value social…

  16. Survey of Fire Detection Technologies and System Evaluation/Certification Methodologies and Their Suitability for Aircraft Cargo Compartments

    Science.gov (United States)

    Cleary, T.; Grosshandler, W.

    1999-01-01

    As part of the National Aeronautics and Space Administration (NASA) initiated program on global civil aviation, NIST is assisting Federal Aviation Administration in its research to improve fire detection in aircraft cargo compartments. Aircraft cargo compartment detection certification methods have been reviewed. The Fire Emulator-Detector Evaluator (FE/DE) has been designed to evaluate fire detection technologies such as new sensors, multi-element detectors, and detectors that employ complex algorithms. The FE/DE is a flow tunnel that can reproduce velocity, temperature, smoke, and Combustion gas levels to which a detector might be exposed during a fire. A scientific literature survey and patent search have been conducted relating to existing and emerging fire detection technologies, and the potential use of new fire detection strategies in cargo compartment areas has been assessed. In the near term, improved detector signal processing and multi-sensor detectors based on combinations of smoke measurements, combustion gases and temperature are envisioned as significantly impacting detector system performance.

  17. Field issues for the plan and operation of the laboratory component of the Third National Health and Nutrition Examination Survey.

    Science.gov (United States)

    McQuillan, G M; Gunter, E W; Lannom, L

    1990-11-01

    The design of the laboratory component of a mobile examination survey such as the National Health and Nutrition Examination Survey requires that the physical limitation of the mobile examination center be balanced against the requirements of the laboratory analyses needed to fulfill the goals of the survey. In order to include an analysis in the survey, the scientific merit of the laboratory test must be established and a consensus must be reached on the appropriateness of the technology for the six years of the survey. The public health importance of the analysis and the subsequent results are also evaluated before inclusion into the laboratory protocol. Finally, the feasibility of incorporating the analysis into the protocol is reviewed. The laboratory component of NHANES III is discussed, addressing these points with descriptions of the reasons for inclusion and exclusion of key analytes.

  18. [Adolescents ask physicians on the Internet: a one-year survey of adolescents' questions on health issues in an Internet forum].

    Science.gov (United States)

    Hardoff, Daniel; Friedman, Rina; Pilo, Nurit; Friedman, Fernando; Greilsammer, Daniel; Rigler, Shmuel

    2012-06-01

    During the past decade, the internet has become a major information resource in various domains of life and a communication venue among young people and adolescents who seek health information via the internet. Until now, the contents of Israeli adolescents' questions regarding health issues on internet sites have not been published. (1) A survey of the characteristics of adolescents who seek health information and their questions presented to the Ynet forum "The body during adolescence". In this forum physicians experienced in adolescent medicine respond to these questions and to comments of other forum participants. (2) Presentation of problematic issues in professionals' responses to health questions in the internet. Survey of a representative sample of contacts to the Ynet forum "The body during adolescence" during 2009 gathering information on gender and age of contacting person, parents' contacts, contacts' contents and physicians responses. A total of 412 contacts were surveyed, 210 (51%) females, aged 14-17 years--60%, 10-13 years--17% and 18-21 years 15%. Parents' questions appeared in 39 (9%) of contacts. Of all contacts, 44% related to sexuality issues and 17% related to self image and body composition. The physicians provided complete responses to 60% of the contacts, while in 40% the physician's responses included referral to clinical medical consultation. An internet health forum enables adolescents and parents to ask questions and raise doubts and anxieties regarding various health issues without the fear of being exposed and enables them to express their concerns face-to-face with a healthcare provider Sensitive issues regarding sexuality and self-image, which are not raised frequently during clinical encounters, are expressed and receive professional responses in the forum. Notwithstanding the significance of a rapid professional contribution, physicians responding to contacts in internet forums need to recognize the barrier related to professional

  19. The Platino project: methodology of a multicenter prevalence survey of chronic obstructive pulmonary disease in major Latin American cities

    Directory of Open Access Journals (Sweden)

    Perez-Padilla Rogelio

    2004-06-01

    Full Text Available Abstract Background The prevalence of Chronic Obstructive Pulmonary Disease (COPD in many developed countries appears to be increasing. There is some evidence from Latin America that COPD is a growing cause of death, but information on prevalence is scant. It is possible that, due to the high frequency of smoking in these countries, this disease may represent a major public health problem that has not yet been recognized as such. The PLATINO study is aimed at measuring COPD prevalence in major cities in Latin America. Methods/Design A multi-country survey is being carried out in major cities in Latin America. In each metropolitan area, a population-based sample of approximately 1,000 individuals aged 40 years or older is being interviewed using standardized questionnaires. Eligible subjects are submitted to pre- and post-bronchodilator spirometry, and classified according to several criteria for COPD. Anthropometric examinations are also performed. Several risk factors are being studied, including smoking, socioeconomic factors, exposure to domestic biomass pollution, occupational exposure to dust and hospital admissions due to respiratory conditions during childhood. Whether or not subjects affected by COPD are aware of their disease, and if so how it is being managed by health services, is also being investigated, as are the consequences of this condition on quality of life and work performance. Results At the present time, the study is completed in São Paulo, Mexico City and Montevideo; Chile has started the study in March 2004 and it will be followed by Venezuela; two other metropolitan areas could still join the PLATINO project. Similar sampling procedures, with stratification for socio-economic status, are being used in all sites. Strict coordination, training and standardization procedures have been used to ensure comparability of results across sites. Overall 92% of the pre-bronchodilator spirometry tests fulfilled ATS criteria of

  20. Review: Heide von Felden (Ed. (2007. Methodendiskussion in der Biographieforschung [Methodological Issues in Biographical Research: Classical and Innovative Perspectives on Qualitative Analysis

    Directory of Open Access Journals (Sweden)

    Klaus Heuer

    2008-10-01

    Full Text Available This article assesses the extent to which the book under review lives up to the expectations raised by its title. The focus is thus on whether the results of interpreting the five featured case studies justify the methodological effort. The interaction between the text and the reader is left out and this is problematic when it comes to interpreting the memories of the Jewish emigrant who is at the centre of three out of the five essays. Furthermore, it is clear that on a formal level (relating to the shared analytical subject as well as in terms of content (relating to interconnectedness that the methodological discussion falls short of the requirements of the approach taken. URN: urn:nbn:de:0114-fqs0901193

  1. Issues of health evaluation during simulated space mission to Mars. Part 1. Research methodology and methods used in experiment Mars-500

    Directory of Open Access Journals (Sweden)

    Roman М. Baevsky

    2013-05-01

    Full Text Available Research methodology and methods used in experiment Mars-500 held at the Institute of Biomedical Problems of the Russian Academy of Sciences in 2009-2011 are considered. 6 volunteers were isolated during 520 days in a sealed ground-based facility simulating space ship. Along with studies of the Martian crew, a number of satellite research were also carried out, which were devoted to the long-term program of medical and ecological investigations. This program was aimed at the study of the dynamics of adaptation abilities of the organism during its long stay in the natural social, living and industrial environments. For physiological investigations in experiment Mars-500, including the main experiment in a sealed ground-based facility and parallel long-term medical and ecological investigations in different regions of the world, the specialized hardwaresoftware complex "Ecosan-2007" was used. The methodology was based on the principles of prenosological diagnostics that have been further developed in the concept of adaptation risks and in the probabilistic approach to their evaluation. For evaluation of various components of the autonomous regulation state the method of heart rate variability (HRV was used. It was concluded that the most important field in experiment Mars-500 was the investigation of the methodology of prenosological diagnostic in the preparation of a space mission to Mars.

  2. Epistemological and Methodological Issues for the Conceptualization, Development, and Assessment of ICT-TPCK: Advances in Technological Pedagogical Content Knowledge (TPCK)

    Science.gov (United States)

    Angeli, Charoula; Valanides, Nicos

    2009-01-01

    In this paper, several issues regarding the epistemology of technological pedagogical content knowledge (TPCK) are first raised for the purpose of clarifying the construct. Specifically, the transformative and integrative views are juxtaposed for exploring the epistemology of TPCK, and, at the end, the transformative view is adopted concluding…

  3. An International Survey of Transport Airplane Pilots’ Experiences and Perspectives of Lateral/Directional Control Events and Rudder Issues in Transport Airplanes (Rudder Survey)

    Science.gov (United States)

    2010-10-01

    Lufthansa German Airlines Midwest Express Airlines, Inc. National Transportation Safety Board Northwest Airlines, Inc. Qantas Airways , Ltd. SAS Flight Academy...with analysis of characteristics of respondents and nonrespondents, is necessary to assure that statistics among a sample generalize more broadly. We...were recognized during analysis of the survey data. Nonetheless, we can assess the representativeness of respondents relative to characteristics of

  4. Methodological Advances in Dea

    NARCIS (Netherlands)

    L. Cherchye (Laurens); G.T. Post (Thierry)

    2001-01-01

    textabstractWe survey the methodological advances in DEA over the last 25 years and discuss the necessary conditions for a sound empirical application. We hope this survey will contribute to the further dissemination of DEA, the knowledge of its relative strengths and weaknesses, and the tools

  5. Issues of health evaluation during simulated space mission to Mars. Part 1. Research methodology and methods used in experiment Mars-500

    OpenAIRE

    Roman М. Baevsky; Evgenie Y. Bersenev; Anna G. Chernikova

    2013-01-01

    Research methodology and methods used in experiment Mars-500 held at the Institute of Biomedical Problems of the Russian Academy of Sciences in 2009-2011 are considered. 6 volunteers were isolated during 520 days in a sealed ground-based facility simulating space ship. Along with studies of the Martian crew, a number of satellite research were also carried out, which were devoted to the long-term program of medical and ecological investigations. This program was aimed at the study of the dyna...

  6. Review: Heide von Felden (Ed.) (2007). Methodendiskussion in der Biographieforschung [Methodological Issues in Biographical Research: Classical and Innovative Perspectives on Qualitative Analysis

    OpenAIRE

    Klaus Heuer

    2008-01-01

    This article assesses the extent to which the book under review lives up to the expectations raised by its title. The focus is thus on whether the results of interpreting the five featured case studies justify the methodological effort. The interaction between the text and the reader is left out and this is problematic when it comes to interpreting the memories of the Jewish emigrant who is at the centre of three out of the five essays. Furthermore, it is clear that on a formal level (relatin...

  7. SURVEY

    DEFF Research Database (Denmark)

    SURVEY er en udbredt metode og benyttes inden for bl.a. samfundsvidenskab, humaniora, psykologi og sundhedsforskning. Også uden for forskningsverdenen er der mange organisationer som f.eks. konsulentfirmaer og offentlige institutioner samt marketingsafdelinger i private virksomheder, der arbejder...... med surveys. Denne bog gennemgår alle surveyarbejdets faser og giver en praktisk indføring i: • design af undersøgelsen og udvælgelse af stikprøver, • formulering af spørgeskemaer samt indsamling og kodning af data, • metoder til at analysere resultaterne...

  8. An End-to-End DNA Taxonomy Methodology for Benthic Biodiversity Survey in the Clarion-Clipperton Zone, Central Pacific Abyss

    Directory of Open Access Journals (Sweden)

    Adrian G. Glover

    2015-12-01

    Full Text Available Recent years have seen increased survey and sampling expeditions to the Clarion-Clipperton Zone (CCZ, central Pacific Ocean abyss, driven by commercial interests from contractors in the potential extraction of polymetallic nodules in the region. Part of the International Seabed Authority (ISA regulatory requirements are that these contractors undertake environmental research expeditions to their CCZ exploration claims following guidelines approved by the ISA Legal and Technical Commission (ISA, 2010. Section 9 (e of these guidelines instructs contractors to “…collect data on the sea floor communities specifically relating to megafauna, macrofauna, meiofauna, microfauna, nodule fauna and demersal scavengers”. There are a number of methodological challenges to this, including the water depth (4000–5000 m, extremely warm surface waters (~28 °C compared to bottom water (~1.5 °C and great distances to ports requiring a large and long seagoing expedition with only a limited number of scientists. Both scientists and regulators have recently realized that a major gap in our knowledge of the region is the fundamental taxonomy of the animals that live there; this is essential to inform our knowledge of the biogeography, natural history and ultimately our stewardship of the region. Recognising this, the ISA is currently sponsoring a series of taxonomic workshops on the CCZ fauna and to assist in this process we present here a series of methodological pipelines for DNA taxonomy (incorporating both molecular and morphological data of the macrofauna and megafauna from the CCZ benthic habitat in the recent ABYSSLINE cruise program to the UK-1 exploration claim. A major problem on recent CCZ cruises has been the collection of high-quality samples suitable for both morphology and DNA taxonomy, coupled with a workflow that ensures these data are made available. The DNA sequencing techniques themselves are relatively standard, once good samples have been

  9. Public Preferences Related to Radioactive Waste Management in the United States: Methodology and Response Reference Report for the 2016 Energy and Environment Survey.

    Energy Technology Data Exchange (ETDEWEB)

    Jenkins-Smith, Hank C. [Univ. of Oklahoma, Norman, OK (United States); Silva, Carol L. [Univ. of Oklahoma, Norman, OK (United States); Gupta, Kuhika [Univ. of Oklahoma, Norman, OK (United States); Rechard, Robert P. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2017-07-01

    This report presents the questions and responses to a nationwide survey taken June 2016 to track preferences of US residents concerning the environment, energy, and radioactive waste management. A focus of the 2016 survey is public perceptions on different options for managing spent nuclear fuel, including on-site storage, interim storage, deep boreholes, general purpose geologic repositories, and geologic repositories for only defense-related waste. Highlights of the survey results include the following: (1) public attention to the 2011 accident and subsequent cleanup at the Fukushima nuclear facility continues to influence the perceived balance of risk and benefit for nuclear energy; (2) the incident at the Waste Isolation Pilot Plant in 2014 could influence future public support for nuclear waste management; (3) public knowledge about US nuclear waste management policies has remined higher than seen prior to the Fukushima nuclear accident and submittal of the Yucca Mountain application; (6) support for a mined disposal facility is higher than for deep borehole disposal, building one more interim storage facilities, or continued on-site storage of spent nuclear fuel; (7) support for a repository that comingles commercial and defense related waste is higher than for a repository for only defense related waste; (8) the public’s level of trust accorded to the National Academies, university scientists, and local emergency responders is the highest and the level trust accorded to advocacy organizations, public utilities, and local/national press is the lowest; and (9) the public is willing to serve on citizens panels but, in general, will only modestly engage in issues related to radioactive waste management.

  10. Transcranial direct current stimulation (tDCS in behavioral and food addiction: A systematic review of efficacy, technical and methodological issues

    Directory of Open Access Journals (Sweden)

    Anne eSauvaget

    2015-10-01

    Full Text Available Objectives.Behavioral addictions (BA are complex disorders for which pharmacological and psychotherapeutic treatments have shown their limits. Non-invasive brain stimulation, among which transcranial direct current stimulation (tDCS, has opened up new perspectives in addiction treatment. The purpose of this work is to conduct a critical and systematic review of tDCS efficacy, and of technical and methodological considerations in the field of BA.Methods.A bibliographic search has been conducted on the Medline and ScienceDirect databases until December 2014, based on the following selection criteria: clinical studies on tDCS and BA (namely eating disorders, compulsive buying, Internet addiction, pathological gambling, sexual addiction, sports addiction, video games addiction. Study selection, data analysis and reporting were conducted according to the PRISMA guidelines.Results.Out of 402 potential articles, seven studies were selected. So far focusing essentially on abnormal eating, these studies suggest that tDCS (right prefrontal anode / left prefrontal cathode reduces food craving induced by visual stimuli.ConclusionsDespite methodological and technical differences between studies, the results are promising. So far, only few studies of tDCS in BA have been conducted. New research is recommended on the use of tDCS in BA, other than eating disorders.

  11. Temas ambientais como "temas geradores": contribuições para uma metodologia educativa ambiental crítica, transformadora e emancipatória Environmental issues as generating issues: contributions to a critical, transforming and emancipating environmental educating methodology

    Directory of Open Access Journals (Sweden)

    Marília Freitas de Campos Tozoni-Reis

    2006-06-01

    Full Text Available A educação ambiental crítica e emancipatória exige que os conhecimentos sejam apropriados, construídos, de forma dinâmica, coletiva, cooperativa, contínua, interdisciplinar, democrática e participativa, voltados para a construção de sociedades sustentáveis. Este artigo trata dos temas ambientais como temas geradores para a educação ambiental, inspirados na pedagogia Paulo Freire, para quem educar é um ato de conhecimento da realidade concreta, das situações vividas, um processo de aproximação crítica da própria realidade: compreender, refletir, criticar e agir são as ações pedagógicas pretendidas. Os temas geradores são, portanto, estratégias metodológicas de um processo de conscientização da realidade opressora vivida nas sociedades desiguais; são o ponto de partida para o processo de construção da descoberta, e, por emergir do saber popular, os temas geradores são extraídos da prática de vida dos educandos, substituindo os conteúdos tradicionais e buscados através da pesquisa do universo dos educandos. O caráter político da pedagogia freireana faz-se presente, de forma radical, nos temas geradores, isto é, temas geradores só são geradores de ação-reflexão-ação se forem carregados de conteúdos sociais e políticos com significado concreto para a vida dos educandos. Assim, as propostas educativas ambientais conscientizadoras podem tomar os temas ambientais locais como temas geradores desta ação conscientizadora, desde que estes temas contenham conteúdos socioambientais significativos para os educandos e sejam definidos coletiva e participativamente.The emancipating and critical environmental education demands that knowledge must be adequate, build up in a dynamic, collective, cooperating, continuous, interdisciplinary, democratic and participating way directed to the construction of self-maintaining societies. This paper deals with environmental issues as generating issues for an environmental

  12. Learning the Hard Way? Issues in the Adoption of New Technology in Small Technology Oriented Firms

    Science.gov (United States)

    Chibelushi, Caroline

    2008-01-01

    Purpose: The purpose of this paper is to explore, through a survey and two short case studies, the issues smaller firms face with the adoption of new technologies. Design/methodology/approach: A survey of the pressures to adopt new technologies and the existence of specialist technology skills was conducted of small ICT oriented firms in the West…

  13. Critical Issues and Key Points from the Survey to the Creation of the Historical Building Information Model: the Case of Santo Stefano Basilica

    Science.gov (United States)

    Castagnetti, C.; Dubbini, M.; Ricci, P. C.; Rivola, R.; Giannini, M.; Capra, A.

    2017-05-01

    The new era of designing in architecture and civil engineering applications lies in the Building Information Modeling (BIM) approach, based on a 3D geometric model including a 3D database. This is easier for new constructions whereas, when dealing with existing buildings, the creation of the BIM is based on the accurate knowledge of the as-built construction. Such a condition is allowed by a 3D survey, often carried out with laser scanning technology or modern photogrammetry, which are able to guarantee an adequate points cloud in terms of resolution and completeness by balancing both time consuming and costs with respect to the request of final accuracy. The BIM approach for existing buildings and even more for historical buildings is not yet a well known and deeply discussed process. There are still several choices to be addressed in the process from the survey to the model and critical issues to be discussed in the modeling step, particularly when dealing with unconventional elements such as deformed geometries or historical elements. The paper describes a comprehensive workflow that goes through the survey and the modeling, allowing to focus on critical issues and key points to obtain a reliable BIM of an existing monument. The case study employed to illustrate the workflow is the Basilica of St. Stefano in Bologna (Italy), a large monumental complex with great religious, historical and architectural assets.

  14. Methodological Issues to Consider When Collecting Data to Estimate Poverty Impact in Economic Evaluations in Low-income and Middle-income Countries.

    Science.gov (United States)

    Sweeney, Sedona; Vassall, Anna; Foster, Nicola; Simms, Victoria; Ilboudo, Patrick; Kimaro, Godfather; Mudzengi, Don; Guinness, Lorna

    2016-02-01

    Out-of-pocket spending is increasingly recognized as an important barrier to accessing health care, particularly in low-income and middle-income countries (LMICs) where a large portion of health expenditure comes from out-of-pocket payments. Emerging universal healthcare policies prioritize reduction of poverty impact such as catastrophic and impoverishing healthcare expenditure. Poverty impact is therefore increasingly evaluated alongside and within economic evaluations to estimate the impact of specific health interventions on poverty. However, data collection for these metrics can be challenging in intervention-based contexts in LMICs because of study design and practical limitations. Using a set of case studies, this letter identifies methodological challenges in collecting patient cost data in LMIC contexts. These components are presented in a framework to encourage researchers to consider the implications of differing approaches in data collection and to report their approach in a standardized and transparent way.

  15. 行政伦理学研究方法论建构的若干问题%Some Issues on Constructing Research Methodology of Administrative Ethics

    Institute of Scientific and Technical Information of China (English)

    卢志雄

    2014-01-01

    当前行政伦理学研究主要有三种方法:思辨推论、历史研究和调研统计。本文认为依靠思辨推论进行研究与行政学探索客观规律的目的南辕北辙,事实上不可能得出确切结论;而后两种方法各有利弊,可以相互弥合补充。但还需要根据经验资料这一研究来源来具体分析研究中的难点,再立足行政伦理学理论架构,汲取管理学、历史学、统计学等相关学科的方法论研究成果,构建新的方法论框架。%Currently the administrative ethics mainly has three approaches:speculative reasoning , historical study , investi-gation and statistical research .The article emphasizes that speculative reasoning is just the reverse of the purpose of science of ad -ministration exploration , which in fact cannot draw any accurate conclusion .But historical study , investigation and statistical re-search have their advantages and disadvantages;moreover, they can complement each other .However, when doing the specific a-nalysis of the difficulties , we need the source of experience material , theoretical framework of administrative ethics and achievements of the methodology of the management , history, statistics and other related subjects in order to build a new framework for the meth-odology.

  16. A National Survey of Services for Women with Substance Use Issues and Their Children in Canada: Challenges for Knowledge Translation

    Science.gov (United States)

    Niccols, Alison; Dobbins, Maureen; Sword, Wendy; Smith, Ainsley; Henderson, Joanna; Milligan, Karen

    2010-01-01

    Across cultures, approximately one third of people with drug dependence are women of child-bearing age. There is emerging evidence regarding the effectiveness of integrating pregnancy, parenting, and child development services with addiction services. In 2007, we conducted a national survey of addiction agencies serving women to provide…

  17. Investigating Socioscientific Issues via Scientific Habits of Mind: Development and Validation of the Scientific Habits of Mind Survey

    Science.gov (United States)

    Calik, Muammer; Coll, Richard Kevin

    2012-01-01

    In this paper, we describe the Scientific Habits of Mind Survey (SHOMS) developed to explore public, science teachers' and scientists' understanding of habits of mind (HoM). The instrument contained 59 items, and captures the seven SHOM identified by Gauld. The SHOM was validated by administration to two cohorts of pre-service science teachers:…

  18. Effect of eprosartan-based antihypertensive therapy on coronary heart disease risk assessed by Framingham methodology in Canadian patients with diabetes: results of the POWER survey

    Directory of Open Access Journals (Sweden)

    Petrella RJ

    2015-03-01

    Full Text Available Robert J Petrella,1–3 Dawn P Gill,2,3 Jean-Pascal Berrou4On behalf of the POWER survey Study Group 1Departments of Family Medicine, Medicine (Cardiology and Kinesiology, University of Western Ontario, London, ON, Canada; 2Aging, Rehabilitation and Geriatric Care Research Centre, Lawson Health Research Institute, London, ON, Canada; 3Department of Family Medicine and School of Health Studies, University of Western Ontario, London, ON, Canada; 4Abbott Products Operations AG, Allschwil, Switzerland Objective: As part of the Physicians’ Observational Work on Patient Education According to their Vascular Risk (POWER survey, we used Framingham methodology to examine the effect of an eprosartan-based regimen on total coronary heart disease (CHD risk in diabetic patients recruited in Canada. Methods: Patients with new or uncontrolled hypertension (sitting systolic blood pressure [SBP] >140 mmHg with diastolic blood pressure <110 mmHg were identified at 335 Canadian primary care practices. Initial treatment consisted of eprosartan 600 mg/day, which was later supplemented with other antihypertensives as required. Outcomes included change in SBP at 6 months (primary objective and absolute change in the Framingham 10-year CHD risk score (secondary objective. Results: We identified an intention-to-treat diabetes population of 195 patients. Most diabetic patients were prescribed two or more antihypertensive drugs throughout the survey. Mean reductions in SBP and diastolic blood pressure were 20.8±14.8 mmHg and 9.5±10.7 mmHg, respectively. The overall absolute mean 10-year CHD risk, calculated using Framingham formulae, declined by 2.9±3.5 points (n=49. Average baseline risk was higher in men than women (14.8±8.6 versus 5.6±1.8 points; men also had a larger average risk reduction (4.2±4.3 versus 1.5±1.3 points. The extent of absolute risk reduction also increased with increasing age (trend not statistically significant. Conclusion: Eprosartan

  19. Methodology and early findings of the fifth survey of childhood and adolescence surveillance and prevention of adult noncommunicable disease: The caspian-v study

    Directory of Open Access Journals (Sweden)

    Mohammad Esmaeil Motlagh

    2017-01-01

    Full Text Available Background: This paper presents the methodology and early findings of the fifth survey of a school-based surveillance program in Iran. Methods: This nationwide study was conducted in 2015 as the fifth survey of a surveillance program entitled "Childhood and Adolescence Surveillance and PreventIon of Adult Non- communicable disease" (CASPIAN-V study. The protocol was mainly based on the World Health Organization-Global School student Health Survey. We studied 14400 students, aged 7-18 years, and their parents living in 30 provinces in Iran. Fasting blood was obtained from a sub-sample of 4200 randomly selected students. Results: The participation rate for the whole study and for blood sampling were 99% and 91.5%, respectively. The mean (SD age of participants was 12.3 (3.2 years, consisting of 49.4% girls and 71.4% urban residents. Overall, 16.1% were underweight (17.4% of boys and 14.8% of girls, and 20.8% had excess weight consisting of 9.4% (8.7% of boys and 10.2% of girls of overweight and 11.4% (12.5% of boys and 10.3% of girls of obesity. Abdominal obesity was documented in 21.1% of students (21.6% of boys and 20.5% of girls. Low HDL-C was the most prevalent abnormality of the lipid profile (29.5% followed by high serum triglycerides (27.7%. Of students, 59.9% consumed whole wheat bread; and 57% reported that they never or rarely added salt to table. The reported daily consumption of fresh fruits, vegetables, and milk was about 60%, 32% and 40%, respectively. 13.7% of participants had at least 30-min daily leisure-time physical activity. Conclusions: The current findings provide an overview of the current health status and lifestyle habits of children and adolescents. This surveillance program would help planning preventive programs at individual and community levels.

  20. Methodology and Early Findings of the Fifth Survey of Childhood and Adolescence Surveillance and Prevention of Adult Noncommunicable Disease: The CASPIAN-V Study

    Science.gov (United States)

    Motlagh, Mohammad Esmaeil; Ziaodini, Hasan; Qorbani, Mostafa; Taheri, Majzoubeh; Aminaei, Tahereh; Goodarzi, Azam; Ataie-Jafari, Asal; Rezaei, Fatemeh; Ahadi, Zeinab; Shafiee, Gita; Shahsavari, Ali; Heshmat, Ramin; Kelishadi, Roya

    2017-01-01

    Background: This paper presents the methodology and early findings of the fifth survey of a school-based surveillance program in Iran. Methods: This nationwide study was conducted in 2015 as the fifth survey of a surveillance program entitled “Childhood and Adolescence Surveillance and PreventIon of Adult Non- communicable disease” (CASPIAN-V) study. The protocol was mainly based on the World Health Organization-Global School student Health Survey. We studied 14400 students, aged 7-18 years, and their parents living in 30 provinces in Iran. Fasting blood was obtained from a sub-sample of 4200 randomly selected students. Results: The participation rate for the whole study and for blood sampling were 99% and 91.5%, respectively. The mean (SD) age of participants was 12.3 (3.2) years, consisting of 49.4% girls and 71.4% urban residents. Overall, 16.1% were underweight (17.4% of boys and 14.8% of girls), and 20.8% had excess weight consisting of 9.4% (8.7% of boys and 10.2% of girls) of overweight and 11.4% (12.5% of boys and 10.3% of girls) of obesity. Abdominal obesity was documented in 21.1% of students (21.6% of boys and 20.5% of girls). Low HDL-C was the most prevalent abnormality of the lipid profile (29.5%) followed by high serum triglycerides (27.7%). Of students, 59.9% consumed whole wheat bread; and 57% reported that they never or rarely added salt to table. The reported daily consumption of fresh fruits, vegetables, and milk was about 60%, 32% and 40%, respectively. 13.7% of participants had at least 30-min daily leisure-time physical activity. Conclusions: The current findings provide an overview of the current health status and lifestyle habits of children and adolescents. This surveillance program would help planning preventive programs at individual and community levels. PMID:28217266

  1. Revised Definitions for Statistical Units – Methodology, Application and User Needs. The Main Conceptual Issues of the “Units Discussion” of the Years 2009–2014

    Directory of Open Access Journals (Sweden)

    Roland Sturm

    2015-09-01

    Full Text Available In the years 2009 to 2014 in the European Statistical System (ESS modified definitions for basic statistical units have been proposed and discussed. The author took part in this discussion as regular participant in the ESS “Working Group Business Registers and Statistical Units”, as participant in the ESSnet “Profiling of large and complex multinational enterprise groups” (2009–2013 and as member of the Eurostat task force “Statistical Units” which worked from 2013 to 2015 on the main issues...

  2. Survey of Vulnerability Methodological Needs

    Science.gov (United States)

    1991-11-01

    20505 2 Central Intelligence Agency ATTN: OIA ( Barbara A. Kroggel) (Monica McGuinn) Washington, DC 20505 1 Central Intelligence Agency ATTN: ORD...James Ellis Barbara J. Harris Constance P. Rollins Tom Wasmund Code G13 Dahlgren, VA 22448-5000 1 Commander Naval Surface Warfare Center ATTN: Glen...15069 1 Analysis and Technology ATTN: RADM Thomas M. Hopkins USN (Ret) 1113 Carper Street McLean, VA 22101 1 ANSER ATTN: James W. McNulty 1215 Jefferson

  3. Algunos aspectos metodológicos de la investigación en resolución de problemas en física: una revisión Some methodological issues involved in Physics problems solving: a review

    Directory of Open Access Journals (Sweden)

    Laura Buteler

    2008-01-01

    Full Text Available El trabajo presenta una revisión de los aspectos metodológicos involucrados en el estudio de las representaciones mentales puestas en juego por las personas para realizar ciertas tareas cognitivas. La revisión se acota al ámbito de la investigación en enseñanza de las ciencias y en particular, a un conjunto de investigaciones que abordan tareas estrechamente relacionadas con la resolución de problemas en Física. La revisión permite analizar y discutir los alcances y limitaciones de las decisiones metodológicas usuales para el estudio de la resolución de problemas en Física. Se ponen en consideración algunas directrices metodológicas plausibles de ser tenidas en cuenta para esta tarea.This work presents a review of the methodological issues involved in the studies of the representations used by people carrying out cognitive tasks. The review is based on literature dealing with cognitive tasks related to Physics problem solving. This review allows the analysis and discussion of the advantages and disadvantages of the usual methodological decisions in Physics problem solving. Methodological directions for physics problem solving are considered.

  4. Survey on the technological development issues for large-scale methanol engine power generation plant; Ogata methanol engine hatsuden plant ni kansuru gijutsu kaihatsu kadai chosa

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-03-01

    Based on the result of `Survey on the feasibility of large-scale methanol engine power generation plant` in fiscal 1992, concrete technological development issues were studied for its practical use, and the technological R & D scheme was prepared for large-scale methanol engine power plant featured by low NOx and high efficiency. Technological development issues of this plant were as follows: improvement of thermal efficiency, reduction of NOx emission, improvement of the reliability and durability of ignition and fuel injection systems, and reduction of vibration. As the economical effect of the technological development, the profitability of NOx control measures was compared between this methanol engine and conventional heavy oil diesel engines or gas engines. As a result, this engine was more economical than conventional engines. It was suggested that development of the equipment will be completed in nearly 4 years through every component study, single-cylinder model experiment and real engine test. 21 refs., 43 figs., 19 tabs.

  5. Current trends in research and clinical issues in the study of personality and its disorders: a survey of the presentations at the ISSPD anniversary congress.

    Science.gov (United States)

    Simonsen, Erik; Sørensen, Per; Pedersen, Liselotte

    2014-10-01

    The International Society for the Study of Personality Disorders (ISSPD) celebrated its 25th anniversary in September 2013 in Copenhagen and commemorated the First International Congress at the same site. The overall theme of the congress was "Bridging Personality and Psychopathology: The Person Behind the Illness." More than 400 abstracts were submitted, and the program included 8 keynote presentations, 18 invited symposia, a debate on current controversial issues in the classification of personality disorders (Fossati, Tyrer, Livesley, and Krueger), an ISSPD award lecture (Silk), a jubilee lecture (Simonsen), a young researchers' symposium (Hopwood, Sharp, and Kaess), and special lectures on the Danish philosopher Soeren Kierkegaard and the poet Hans Christian Andersen. In this article we will survey the presentations and highlight the important issues in order to underline the current trends in research and clinical interests in personality disorders. The keynote video presentations, invited symposia, and slide presentations are freely available at www.isspd2013.com.

  6. Survey of the Child Neurology Program Coordinator Association: Workforce Issues and Readiness for the Next Accreditation System.

    Science.gov (United States)

    Feist, Terri B; Campbell, Julia L; LaBare, Julie A; Gilbert, Donald L

    2016-03-01

    In preparation for the implementation of the Next Accreditation System in Child Neurology, the authors organized the first meeting of child neurology program coordinators in October 2014. A workforce and program-readiness survey was conducted initially. Coordinator job titles varied widely. Most respondents (65%) managed 1 or more fellowships plus child neurology residency. Most had worked in graduate medical education less than 5 years (53%), with no career path (88%), supervised by someone without graduate medical education experience (85%), in divisions where faculty knowledge was judged inadequate (72%). A small proportion of programs had established clinical competency committee policies (28%) and was ready to implement milestone-based evaluations (56%). A post-conference survey demonstrated substantial improvements in relevant skills. The complexity of residency program management in the Next Accreditation System era supports substantive modifications to the program coordinator role. Such changes should include defined career pathway, managerial classification, administrative support, and continuing education. © The Author(s) 2015.

  7. General practitioners and carers: a questionnaire survey of attitudes, awareness of issues, barriers and enablers to provision of services

    Directory of Open Access Journals (Sweden)

    Atkins Christine

    2010-12-01

    Full Text Available Abstract Background Approximately one in ten of the UK population are unpaid carers supporting a family member or friend who could not manage without their help, saving the UK economy an estimated £87 billion. This role is known to sometimes have a negative impact on carers and to require support both informally and from statutory services. General practice is a first point of contact for carers but research investigating general practitioners' (GPs' attitudes towards carers and awareness of issues facing carers is rare. This study therefore aimed to identify GPs' attitudes, awareness of issues, and perceptions of the barriers and enablers to provision of services. Methods Using a self-completion questionnaire distributed at a series of workshops, this study investigates GPs' attitudes to carers; awareness and knowledge of carers' issues; services offered in general practice and barriers to supporting carers. Results Seventy eight out of a total of 95 GPs (82% response rate from a variety of areas in England completed the questionnaires. The GPs identified time, resources and lack of knowledge as barriers, but only 9% agreed with the statement that there is little support they can offer carers. However, nine in ten GPs (89% feel they have insufficient training here and approximately half of them (47% lack confidence that they are meeting carers' needs. Confidence in identifying carers is also low (45%. Issues that GPs would look out for amongst carers include emotional and physical health problems and financial and isolation difficulties. GPs specifically highlighted educational and isolation issues for young carers. Few services were described that targeted carers. Conclusions GPs recognise that they have an important role to play in supporting carers but would like training and support. Further investigation is needed both to determine how best to train and facilitate GPs and general practice teams in their role in supporting carers and to

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

    Directory of Open Access Journals (Sweden)

    Delan Devakumar

    2015-03-01

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

  9. Effect of eprosartan-based antihypertensive therapy on coronary heart disease risk assessed by Framingham methodology in Canadian patients: results of the POWER survey

    Directory of Open Access Journals (Sweden)

    Petrella RJ

    2014-01-01

    Full Text Available Robert J Petrella,1 Guy Tremblay,2 Guy De Backer,3 Dawn P Gill,4,5,6 On behalf of the POWER survey Study Group 1Department of Family Medicine and Cardiology, Lawson Health Research Institute, University of Western Ontario, ON, Canada; 2Centre hospitalier universitaire de Québec, Hôpital du Saint-Sacrement, Sainte-Foy, Québec, QC, Canada; 3Department of Public Health, Ghent University, Ghent, Belgium; 4Aging, Rehabilitation and Geriatric Care Research Centre, Lawson Health Research Institute, London, ON, Canada; 5School of Health Studies, Western University, London, ON, Canada; 6Department of Epidemiology, University of Washington, Seattle, WA, USA Purpose/introduction: The Canadian Hypertension Education Program (CHEP has identified blood pressure (BP control as a key target for an overall reduction in cardiovascular disease risk. The POWER survey (Physicians’ Observational Work on Patient Education According to their Vascular Risk used Framingham methodology to investigate the impact of an angiotensin-receptor-blocker-based regimen on arterial BP and total coronary heart disease (CHD risk in a subset of patients recruited in Canada. Methods: 309 Canadian practices screened for patients with either newly diagnosed or uncontrolled mild/moderate hypertension (sitting systolic blood pressure [SBP] >140 mmHg with diastolic blood pressure [DBP] <110 mmHg. Treatment comprised eprosartan 600 mg/day with add-on antihypertensive therapy after 1 month if required. The primary efficacy variable was change in SBP at 6 months; the secondary variable was the absolute change in the Framingham 10-year CHD risk score. Results: 1,385 patients were identified, of whom 1,114 were included in the intention-to-treat (ITT cohort. Thirty-eight point four percent of ITT patients were managed with monotherapy at 6 months, versus 35.2% and 13.7% with two-drug or multiple-drug therapy, respectively. SBP in the ITT cohort declined 22.4 (standard deviation [SD] 14.8 mm

  10. Investigating load management technology options: a survey of technologies and issues. Final report. [Competitive interrelationships of LM, conservation, and renewables

    Energy Technology Data Exchange (ETDEWEB)

    None

    1979-12-01

    Load-management-technology options are commercially available and may be desirable in many utility-service areas. Energy-conservation and renewable-energy-supply technologies are also cost-effective in many applications and, where installed, may reduce the effectiveness and attractiveness of load-management options. Recent energy legislation has not addressed these competitive interrelationships; future legislation is unlikely to do so unless a coordinated task-force effort among relevant DOE offices is pursued to derive strategic technology and policy recommendations on this issue. R and D strategies should help formulate these recommendations.

  11. 滇黔桂民族旅游的社会性别研究与方法论思考%A Literature Review of Research and Methodology Reflection on Ethnic Tourism and Gender Issues in Yunnan, Guizhou and Guangxi

    Institute of Scientific and Technical Information of China (English)

    项萌; 李亚妮; 邓敏

    2012-01-01

    Recently, ethnic tourism and minority women's issues have been a hot issue in the international social science research. Based on the statistics and analysis of the relevant literature, this paper examines the ethnic tourism and minority gender issues in Yunnan, Guizhou and Guangxi, and identifies the progress of research and took farther forward to academic trends in near future. It also tries to put forward some suggestions correlating with the discipline construction and research methodology.%民族旅游与少数民族妇女问题研究是近年来人文社会科学研究领域的一个热点。基于国内外相关研究文献的整理分析,对滇黔桂三省民族旅游的社会性别研究进展进行分析整理和系统评述,展望未来的研究热点,并针对当前研究的不足进行方法论提出思考。

  12. A Rigorous Test of the Fit of the Circumplex Model to Big Five Personality Data: Theoretical and Methodological Issues and Two Large Sample Empirical Tests.

    Science.gov (United States)

    DeGeest, David Scott; Schmidt, Frank

    2015-01-01

    Our objective was to apply the rigorous test developed by Browne (1992) to determine whether the circumplex model fits Big Five personality data. This test has yet to be applied to personality data. Another objective was to determine whether blended items explained correlations among the Big Five traits. We used two working adult samples, the Eugene-Springfield Community Sample and the Professional Worker Career Experience Survey. Fit to the circumplex was tested via Browne's (1992) procedure. Circumplexes were graphed to identify items with loadings on multiple traits (blended items), and to determine whether removing these items changed five-factor model (FFM) trait intercorrelations. In both samples, the circumplex structure fit the FFM traits well. Each sample had items with dual-factor loadings (8 items in the first sample, 21 in the second). Removing blended items had little effect on construct-level intercorrelations among FFM traits. We conclude that rigorous tests show that the fit of personality data to the circumplex model is good. This finding means the circumplex model is competitive with the factor model in understanding the organization of personality traits. The circumplex structure also provides a theoretically and empirically sound rationale for evaluating intercorrelations among FFM traits. Even after eliminating blended items, FFM personality traits remained correlated.

  13. Current Issues Affecting the Practice of Pediatric Orthopaedic Surgeons: Results of the 2014 Workforce Survey of American Academy of Pediatrics Section on Orthopaedics.

    Science.gov (United States)

    Hosseinzadeh, Pooya; Copley, Lawson; Ruch-Ross, Holly; Schwend, Richard M; Sawyer, Jeffrey R

    2016-09-22

    The opinions of the pediatric orthopaedic workforce are shaped by market forces, regulatory processes, and local experience. The purpose of this report is to summarize the findings of the recent Workforce Survey of the American Academy of Pediatrics (AAP) Section on Orthopaedics (SOOr). This submission has been reviewed and approved by the Board of Directors of the Pediatric Orthopaedic Society of North America (POSNA). In 2014, the AAP generated a survey to assess perceptions of pediatric orthopaedic surgeons about current issues that affect practice. The survey was sent to 856 POSNA and 141 AAP-SOOr members. Responses were topically organized to report current workforce composition, practice patterns, and perceptions about electronic medical records (EMRs). Responses were collected from August to December, 2014, from 496 (50%) survey recipients including 83 of 141 (59%) AAP-SOOr members and 413 of 856 (48%) POSNA members. Analyses were restricted to the 397 respondents who reported that they are currently practicing pediatric orthopaedics. Nearly all of these (390/391, 100%) indicated that they provide direct patient care and work an average of 60 hours per week. Many (105/378, 28%) indicated that they would soon limit their practice or retire. A majority (299/394, 76%) indicated that they face competition in their geographic area, predominantly due to pediatric orthopaedic subspecialists (269/299, 90%). Major business changes had recently occurred or were anticipated by 21% of participants. Respondents reported that use of EMR makes them less efficient (252/397, 63%) and interferes with the patient-physician relationship (172/397, 43%). This workforce survey suggests that pediatric orthopaedic surgeons are concerned with challenges of competition despite concurrent increasing volume and complexity of referrals. External processes such as EMR changes are perceived to negatively impact practice efficiency and satisfaction.

  14. Estimation and Short-Term Prediction of the Course of the HIV Epidemic Using Demographic and Health Survey Methodology-Like Data.

    Directory of Open Access Journals (Sweden)

    Stéphanie Blaizot

    Full Text Available Mathematical models have played important roles in the understanding of epidemics and in the study of the impacts of various behavioral or medical measures. However, modeling accurately the future spread of an epidemic requires context-specific parameters that are difficult to estimate because of lack of data. Our objective is to propose a methodology to estimate context-specific parameters using Demographic and Health Survey (DHS-like data that can be used in mathematical modeling of short-term HIV spreading.The model splits the population according to sex, age, HIV status, and antiretroviral treatment status. To estimate context-specific parameters, we used individuals' histories included in DHS-like data and a statistical analysis that used decomposition of the Poisson likelihood. To predict the course of the HIV epidemic, sex- and age-specific differential equations were used. This approach was applied to recent data from Kenya. The approach allowed the estimation of several key epidemiological parameters. Women had a higher infection rate than men and the highest infection rate in the youngest age groups (15-24 and 25-34 years whereas men had the highest infection rate in age group 25-34 years. The immunosuppression rates were similar between age groups. The treatment rate was the highest in age group 35-59 years in both sexes. The results showed that, within the 15-24 year age group, increasing male circumcision coverage and antiretroviral therapy coverage at CD4 ≤ 350/mm3 over the current 70% could have short-term impacts.The study succeeded in estimating the model parameters using DHS-like data rather than literature data. The analysis provides a framework for using the same data for estimation and prediction, which can improve the validity of context-specific predictions and help designing HIV prevention campaigns.

  15. A cross-sectional survey of 5-year-old children with non-syndromic unilateral cleft lip and palate: the Cleft Care UK study. Part 1: background and methodology

    Science.gov (United States)

    Persson, M; Sandy, J R; Waylen, A; Wills, A K; Al-Ghatam, R; Ireland, A J; Hall, A J; Hollingworth, W; Jones, T; Peters, T J; Preston, R; Sell, D; Smallridge, J; Worthington, H; Ness, A R

    2015-01-01

    Structured Abstract Objectives We describe the methodology for a major study investigating the impact of reconfigured cleft care in the United Kingdom (UK) 15 years after an initial survey, detailed in the Clinical Standards Advisory Group (CSAG) report in 1998, had informed government recommendations on centralization. Setting and Sample Population This is a UK multicentre cross-sectional study of 5-year-olds born with non-syndromic unilateral cleft lip and palate. Children born between 1 April 2005 and 31 March 2007 were seen in cleft centre audit clinics. Materials and Methods Consent was obtained for the collection of routine clinical measures (speech recordings, hearing, photographs, models, oral health, psychosocial factors) and anthropometric measures (height, weight, head circumference). The methodology for each clinical measure followed those of the earlier survey as closely as possible. Results We identified 359 eligible children and recruited 268 (74.7%) to the study. Eleven separate records for each child were collected at the audit clinics. In total, 2666 (90.4%) were collected from a potential 2948 records. The response rates for the self-reported questionnaires, completed at home, were 52.6% for the Health and Lifestyle Questionnaire and 52.2% for the Satisfaction with Service Questionnaire. Conclusions Response rates and measures were similar to those achieved in the previous survey. There are practical, administrative and methodological challenges in repeating cross-sectional surveys 15 years apart and producing comparable data. PMID:26567851

  16. Farmers' willingness to pay for power in India. Conceptual issues, survey results and implications for pricing

    Energy Technology Data Exchange (ETDEWEB)

    Dossani, Rafiq [Senior Research Scholar, Asia-Pacific Research Center, Stanford University, 616 Serra Street, Stanford, CA 94305-6055 (United States); Ranganathan, V. [Professor of Economics and Energy, Indian Institute of Management, Bangalore 560076 (India)

    2004-05-01

    The objective of this paper is to develop strategies useful for raising prices of rural power in India. Such power is currently subsidized and policymakers are eager to make the transition to more efficient prices. The traditionally used measure, willingness to pay (WTP), is shown to have no useful policy implications due to the rationing of power. Using survey data from rural Andhra Pradesh, we show that the utility's cost of power exceeds the income generated by the power. This suggests a political problem - the possibility that low power prices have led to large-scale farming of unproductive land - that will be hard to resolve. Our survey also shows that subsidies are regressive with income. We use measured WTP for higher income groups to propose a discriminatory pricing regime that will raise total revenue by 20%. When combined with removing the causes of motor burnout, such as voltage fluctuations, and eliminating rostering, subsidies can be reduced substantially but probably remain too high to be resolved without political action.

  17. Farmers' willingness to pay for power in India: conceptual issues, survey results and implications for pricing

    Energy Technology Data Exchange (ETDEWEB)

    Dossani, Rafiq [Stanford Univ., Asia-Pacific Research Center, Stanford, CA (United States); Ranganathan, V. [Indian Inst. of Management, Bangalore (India)

    2004-05-01

    The objective of this paper is to develop strategies useful for raising prices of rural power in India. Such power is currently subsidized and policymakers are eager to make the transition to more efficient prices. The traditionally used measure, willingness to pay (WTP), is shown to have no useful policy implications due to the rationing of power. Using survey data from rural Andhra Pradesh, we show that the utility's cost of power exceeds the income generated by the power. This suggests a political problem - the possibility that low power prices have led to large-scale farming of unproductive land - that will be hard to resolve. Our survey also shows that subsidies are regressive with income. We use measured WTP for higher income groups to propose a discriminatory pricing regime that will raise total revenue by 20%. When combined with removing the causes of motor burnout, such as voltage fluctuations, and eliminating rostering, subsidies can be reduced substantially but probably remain too high to be resolved without political action. (Author)

  18. Development of a comprehensive survey of sexuality issues including a self-report version of the International Spinal Cord Injury sexual function basic data sets.

    Science.gov (United States)

    New, P W; Currie, K E

    2016-08-01

    Questionnaire development, validation and completion. Develop comprehensive survey of sexuality issues including validated self-report versions of the International Spinal Cord Injury male sexual function and female sexual and reproductive function basic data sets (SR-iSCI-sexual function). People with spinal cord damage (SCD) living in the community, Australia from August 2013 to June 2014. An iterative process involving rehabilitation medicine clinicians, a nurse specialising in sexuality issues in SCD and people with SCD who developed a comprehensive survey that included the SR-iSCI-sexual function. Participants recruitment through spinal rehabilitation review clinic and community organisations that support people with SCD. Surveys completed by 154 people. Most were male (n=101, 65.6%). Respondents' median age was 50 years (interquartile range (IQR) 38-58), and they were a median of 10 years (IQR 4-20) after the onset of SCD. Sexual problems unrelated to SCD were reported by 12 (8%) respondents, and 114 (n=75.5%) reported sexual problems because of SCD. Orgasms were much less likely (χ(2)=13.1, P=0.006) to be normal in males (n=5, 5%) compared with females (n=11, 22%). Males had significantly worse (χ(2)=26.0, P=0.001) psychogenic genital functioning (normal n=9, 9%) than females (normal n=13, 26%) and worse (χ(2)=10.8, P=0.013) reflex genital functioning. Normal ejaculation was reported in only three (3%) men. Most (n=26, 52%) women reported reduced or absent menstruation pattern since SCD. The SR-iSCI-sexual function provides a useful tool for researchers and clinicians to collect information regarding patient-reported sexual functioning after SCD and to facilitate comparative studies.

  19. Methodological advances

    Directory of Open Access Journals (Sweden)

    Lebreton, J.-D.

    2004-06-01

    Full Text Available The study of population dynamics has long depended on methodological progress. Among many striking examples, continuous time models for populations structured in age (Sharpe & Lotka, 1911 were made possible by progress in the mathematics of integral equations. Therefore the relationship between population ecology and mathematical and statistical modelling in the broad sense raises a challenge in interdisciplinary research. After the impetus given in particular by Seber (1982, the regular biennial EURING conferences became a major vehicle to achieve this goal. It is thus not surprising that EURING 2003 included a session entitled “Methodological advances”. Even if at risk of heterogeneity in the topics covered and of overlap with other sessions, such a session was a logical way of ensuring that recent and exciting new developments were made available for discussion, further development by biometricians and use by population biologists. The topics covered included several to which full sessions were devoted at EURING 2000 (Anderson, 2001 such as: individual covariates, Bayesian methods, and multi–state models. Some other topics (heterogeneity models, exploited populations and integrated modelling had been addressed by contributed talks or posters. Their presence among “methodological advances”, as well as in other sessions of EURING 2003, was intended as a response to their rapid development and potential relevance to biological questions. We briefly review all talks here, including those not published in the proceedings. In the plenary talk, Pradel et al. (in prep. developed GOF tests for multi–state models. Until recently, the only goodness–of–fit procedures for multistate models were ad hoc, and non optimal, involving use of standard tests for single state models (Lebreton & Pradel, 2002. Pradel et al. (2003 proposed a general approach based in particular on mixtures of multinomial distributions. Pradel et al. (in prep. showed

  20. Pronunciation Issues and Varieties of English from an EIL Perspective: A Survey of Outer and Expanding Circle Learners’ Beliefs

    Directory of Open Access Journals (Sweden)

    Abbas Monfared

    2014-11-01

    Full Text Available In a globalized era where English keeps the position of an international language, learnt and spoken by lots of people from diverse linguistic, cultural and national backgrounds, there is a need for a new perspective towards English as an international language which can bridge notions and cultures. The appearance of varieties of English is the consequence of the global dissemination of English. Based on a combination of quantitative and qualitative data using a semi-structured questionnaire (see Appendix A administered to 60 Iranian learners from expanding circle and 60 Indian learners from outer circle, this study surveyed the developing picture of EIL pronunciation and evaluation of different varieties of English from the perspective of learners from two circles which include the most users of English in the globalized world. The results of the questionnaires supplemented by interviews with leaners from expanding and outer circles revealed that expanding-circle learners like more to have a native-like identity with their preference towards nativism. The implications on the findings on the spread of native speaker norms and the status of ELF and its reflections in learning and teaching in expanding and outer circle countries are discussed.  Keywords: Pronunciation, Intelligibility, English as an International language, Language Awareness, Identity

  1. Research Article Special Issue

    African Journals Online (AJOL)

    2016-07-16

    Jul 16, 2016 ... online brand equity by using Six Sigma methodology. In addition the paper can ... strategy of market segmentation and product differentiation”. Even though customers ..... Demographics of Survey Respondents. Age. Gender.

  2. Relationships Among the Knowledge, Efficacy, and Practices Instrument, Color-Blind Racial Attitudes Scale, Deamonte Driver Survey, and Defining Issues Test 2.

    Science.gov (United States)

    Behar-Horenstein, Linda S; Garvan, Cynthia W

    2016-03-01

    Concordance studies indicate the degree to which instruments measure the same or similar constructs or something different. The aims of this study were to identify the factor structure of the Deamonte Driver Survey and determine the relationship between the Deamonte Driver (a measure of social class stereotyping), the Defining Issues Test 2 (DIT2; a measure of ethical sensitivity), the Color-Blind Racial Attitudes Scale (CoBRAS; a measure of racial stereotyping), and the Knowledge, Efficacy, and Practices Instrument (KEPI; a measure of cultural competence). The results showed a three-factor solution for the Deamonte Driver Survey and significant relationships between CoBRAS and DIT2 subscales and between CoBRAS and Deamonte Driver subscales. Significant relationships between the measures and exploratory variables, underrepresented minority status, age, citizenship, marital status, political stance, English as a first language, and gender were found. The lack of a significant relationship between the KEPI and Deamonte Driver, DIT2, or CoBRAS subscales suggests that the KEPI is measuring a unique construct. These findings showed how these scales contributed to the assessment of cultural competence among dental students and faculty.

  3. Alzheimer disease ethics--informed consent and related issues in clinical trials: results of a survey among the members of the Research Ethics Committees in Sweden.

    Science.gov (United States)

    Peterson, Gunbrith; Wallin, Anders

    2003-06-01

    The rapid advances in biomedical sciences have induced special moral and ethical attitudes, which ought to be taken into account. One of the most essential issues is the principles for participation in research of subjects with reduced decision-making capacity. We conducted a questionnaire survey among members of the research ethics committees in Sweden to find out their attitudes to a range of ethical issues related to research on subjects with Alzheimer's disease. One hundred thirty-six of those approached responded (66%), and 117 of the responses (56%) were considered substantially complete. There were 16 questions with fixed reply alternatives. Some central questions concerned the informed consent process. With a few exceptions, there were no significant differences in attitudes between the experts and laypersons, between persons of different ages, and between men and women. However, women and laypersons were in general keener to preserve the patient's integrity and the experts were more willing than the laypersons to allow participation of subjects with dementia in placebo-controlled trials.

  4. Water-the Nation's Fundamental Climate Issue A White Paper on the U.S. Geological Survey Role and Capabilities

    Science.gov (United States)

    Lins, Harry F.; Hirsch, Robert M.; Kiang, Julie

    2010-01-01

    Of all the potential threats posed by climatic variability and change, those associated with water resources are arguably the most consequential for both society and the environment (Waggoner, 1990). Climatic effects on agriculture, aquatic ecosystems, energy, and industry are strongly influenced by climatic effects on water. Thus, understanding changes in the distribution, quantity and quality of, and demand for water in response to climate variability and change is essential to planning for and adapting to future climatic conditions. A central role of the U.S. Geological Survey (USGS) with respect to climate is to document environmental changes currently underway and to develop improved capabilities to predict future changes. Indeed, a centerpiece of the USGS role is a new Climate Effects Network of monitoring sites. Measuring the climatic effects on water is an essential component of such a network (along with corresponding effects on terrestrial ecosystems). The USGS needs to be unambiguous in communicating with its customers and stakeholders, and with officials at the Department of the Interior, that although modeling future impacts of climate change is important, there is no more critical role for the USGS in climate change science than that of measuring and describing the changes that are currently underway. One of the best statements of that mission comes from a short paper by Ralph Keeling (2008) that describes the inspiration and the challenges faced by David Keeling in operating the all-important Mauna Loa Observatory over a period of more than four decades. Ralph Keeling stated: 'The only way to figure out what is happening to our planet is to measure it, and this means tracking changes decade after decade and poring over the records.' There are three key ideas that are important to the USGS in the above-mentioned sentence. First, to understand what is happening requires measurement. While models are a tool for learning and testing our understanding

  5. Cross-Cultural Issues of Intra- and Inter-Organisational Cooperation in Space Operations: A Survey Study with Ground Personnel of the European Space Agency

    Science.gov (United States)

    Mjeldheim Sandal, Gro; Mjeldheim Sandal, Gro; Manzey, Dietrich

    Today's space operations often involve close co-working of people with different ethnical, professional and organizational backgrounds. The aim of the study was to examine the implications of cultural diversity for efficient collaboration within the European Space Agency (ESA), and between ESA employees and representatives from other agencies. Methods: A web-based survey was answered by 905 employees at the European Astronaut Centre and at the European Space Technology Centre. An adapted version of the Flight Management Attitude Questionnaire by Helmreich and Merrit was used. Personnel were also asked about interpersonal and operational issues that interfered with efficient co-working within ESA and in relation to other space agencies. Results: Collaboration within ESA: A descriptive analysis was conducted of the rank orders of challenges perceived by members of different nationalities (the Netherlands (N=68), German (N=138), Italian (N=135), French (N=124), British (N=84) and Scandinavian (27).Rank orders show a surprisingly uniformity across nationalities. Most respondents perceived differences in the preferred leadership style as the main challenge for co-working in multi-national groups followed by differences in dealing with conflicts and misunderstandings. In contrast communication problems due different languages and differences in non-verbal behaviour, as well as differences in gender stereotypes were among the lowest rated issues. However, Scandinavian respondents showed a different pattern from other nationalities. Collaboration between agencies: The most significant issues reported to interfere with the efficiency of inter-agency collaboration varied. Most difficulties were reported in relation to clarity of communication, insufficient sharing of task related information, understanding the process of decision making in partner organization, and authoritarian leadership style in the partner organization Conclusion: Cultural differences in leadership and

  6. Meditation: Rationales, Experimental Effects, and Methodological Issues

    Science.gov (United States)

    1986-04-01

    electrodermal activity . Although subjects did not receive immediate BP feedback. at the end of each session they were told the values of their BP prior to and...transition from waking states to sleep . The large amplitude, slow delta activity is a hallmark of deep sleep , and is periodically punctuated by rapid...drowsiness or Stage 1I sleep . Pagano et Al (1976) reported that during ten sessions of meditation by each of five experienced transcendental meditators. 39X

  7. Educational neuroscience: definitional, methodological, and interpretive issues.

    Science.gov (United States)

    Byrnes, James P; Vu, Lien T

    2015-01-01

    In this study, we hope to accomplish three aims as follows: (1) provide greater clarity regarding the nature and scope of the field of educational neuroscience, (2) propose a framework for understanding when and how neuroscientific research could be informative for educational practice, and (3) describe some examples of neuroscientific findings from the domains of reading and mathematics that are informative according to this framework. We propose that psychological models of learning-related processes should be the basis of instructional decisions, and that neuroscientific evidence in combination with traditional evidence from psychological experiments should be used to decide among competing psychological models. Our review of the neuroscientific evidence for both reading and mathematics suggests that while much has been learned over the past 20 years, there is still a 'disconnect' between contemporary psychological models that emphasize higher level skills and neuroscientific studies that focus on lower level skills. Moreover, few researchers have used neuroscientific evidence to decide among psychological models, but have focused instead on identifying the brain regions that subtend component skills of reading and math. Nevertheless, neuroscientific studies have confirmed the intrinsic relationship between reading and spoken language, revealed interesting predictive relationships between anatomical structures and reading and math disabilities, and there is the potential for fruitful collaborations between neuroscientists and psychologists in the future.

  8. A program to support the full utilization of data from existing social surveys of environmental noise

    Science.gov (United States)

    Fields, J. M.

    1980-01-01

    A brief review is presented of a three-part project (partially supported by NASA), which promotes greater utilization of social survey data for gaining new information about human response to environmental noise. The goal is accomplished by (1) publishing a catalog of existing social surveys on environmental noise, (2) establishing a data archive for noise survey data sets, and (3) reanalyzing selected surveys to address substantial and methodological issues. A finding about annoyance scales illustrates the use of a comparative analysis.

  9. Some notes on taxonomic methodology

    NARCIS (Netherlands)

    Hammen, van der L.

    1986-01-01

    The present paper constitutes an introduction to taxonomic methodology. After an analysis of taxonomic practice, and a brief survey of kinds of attributes, the paper deals with observation, description, comparison, arrangement and classification, hypothesis construction, deduction, model, experiment

  10. Methodological Reflections: Inter- ethnic Research

    DEFF Research Database (Denmark)

    Singla, Rashmi

    2010-01-01

    This article reflects on the methodological and epistemological aspects of the ethical issues involved in encounters between researcher and research participants with ethnic minority background in contexts with diversity. Specific challenges involved in longitudinal research (10 - 15 years) are a...

  11. Methodological issues and preliminary results from a combined sediment fingerprinting and radioisotope dating approach to explore changes in sediment sources with land-use change in the Brantian Catchment, Borneo.

    Science.gov (United States)

    Walsh, Rory; Higton, Sam; Marshall, Jake; Bidin, Kawi; Blake, William; Nainar, Anand

    2015-04-01

    This paper reports some methodological issues and early results of a project investigating the erosional impacts of land use changes (multiple selective logging and progressive, partial conversion to oil palm) over the last 25-40 years in the 600km2 Brantian river catchment in Sabah, Borneo. A combined sediment fingerprinting and radioisotope dating approach is being applied to sediment cores taken in stream hierarchical fashion across the intermediate catchment scale. Changes in sediment sources and sedimentation rates over time can be captured by changes in the relative importance of geochemical elements with depth in downstream sediment cores, which in turn can be linked to parallel changes in upstream cores by the application of unmixing models and statistical techniques. Radioisotope analysis of the sediment cores allows these changes to be dated and sedimentation rates to be estimated. Work in the neighbouring Segama catchment had successfully demonstrated the potential of such an approach in a rainforest environment (Walsh et al. 2011). The paper first describes steps taken to address methodological issues. The approach relies on taking continuous sediment cores which have aggraded progressively over time and remain relatively undisturbed and uncontaminated. This issue has been tackled (1) through careful core sampling site selection with a focus on lateral bench sites and (2) deployment of techniques such as repeat-measurement erosion bridge transects to assess the contemporary nature of sedimentation to validate (or reject) candidate sites. The issue of sediment storage and uncertainties over lag times has been minimised by focussing on sets of above- and below-confluence sites in the intermediate zone of the catchment, thus minimising sediment transit times between upstream contributing and downstream destination core sites. This focus on the intermediate zone was also driven by difficulties in finding suitable core sites in the mountainous headwaters

  12. Qualitative Methodology in Unfamiliar Cultures

    DEFF Research Database (Denmark)

    Svensson, Christian Franklin

    2014-01-01

    on a qualitative methodology, conscious reflection on research design and objectivity is important when doing fieldwork. This case study discusses such reflections. Emphasis throughout is given to applied qualitative methodology and its contributions to the social sciences, in particular having to do...... with relational, emotional, and ethical issues associated with interviewing and personal observation. Although the empirical setting of this case is Southeast Asia, the various discussions and interrelatedness of methodology, theory, and empirical reflections will prove applicable to field studies throughout...

  13. Application of sample inventorying methodology in surveying occupant density at public spaces%抽样清点法在公共场所人员密度调查中的应用

    Institute of Scientific and Technical Information of China (English)

    甘廷霞; 谢晓刚; 胡忠日

    2012-01-01

    Introduce the sample inventorying/counting methodology , and apply the method to survey the occupant density at the Xidan Department Store of Chengdu. By comparing the results with other methodologies, the practicability of sample inventorying approach and its applicable venues were analyzed. The method offered a guidance and reference for survey approaches for survey of basic data such as occupant density at public spaces.%介绍抽样清点方法,应用抽样清点法对成都西单商场的人员密度进行调查,将调查结果与采用其他调查方法进行人员密度调查的结果对比,分析抽样清点法在人员密度调查中的实用性和使用场所,为开展公共场所人员密度等基础数据的调查研究提供调查方法的指导和参考.

  14. NON-DATABASE CUSTOMER AS SPATIAL ISSUES OF ESTIMATING HYPERMARKET’S LIFETIME VALUE: AN APPROACH OF SURVEY-GIS METHOD

    Directory of Open Access Journals (Sweden)

    Malliga Marimuthu

    2011-09-01

    Full Text Available Prospecting hypermarket lifetime value is vital important to predict how long the business will be survive in the marketplace as important as measured the profitability of the business. Mostly, the hypermarket has been used database customer as main resources of predicting their customer without consider any data from non-database customer, which also called “free customer”. In fact, non-customer is spatial-based information where never tied with hypermarket database of customer. This is actually the gaps that exist in prospecting customer lifetime value where most of study was aimed on database customer and also lacks in tied spatial-based information to the hypermarket’s customer database. The objective of this paper is to discuss non-database customer as spatial issues during estimating the profitability of hypermarket business. Secondly, this study is aimed to demonstrate the location of non-database customer as base platform for further works on prospecting customer lifetime value. The method use in this study is combination survey-GIS as solution for handle non-database customer in spatial environment. Specifically, Arcview software (GIS is used as main method for modelling the physical location of marketplace. Meanwhile, a postal address of non-database customer which is collected from survey is used for testing under the physical model of marketplace location. The Seberang Perai Tengah of Penang in Malaysia is setting as location of the study. One of the result shows that non-database customer can visualized individually by specific location that based on street and road. This study will suggest on how to used spatial data as a part of predicting lifetime value of customer where it can produced results in more precise and concurrently.

  15. Paired Comparison Survey Analyses Utilizing Rasch Methodology of the Relative Difficulty and Estimated Work Relative Value Units of CPT® Code 27279

    Science.gov (United States)

    Lorio, Morgan; Ferrara, Lisa

    2016-01-01

    Background Minimally invasive sacroiliac joint arthrodesis (“MI SIJ fusion”) received a Category I CPT® code (27279) effective January 1, 2015 and was assigned a work relative value unit (“RVU”) of 9.03. The International Society for the Advancement of Spine Surgery (“ISASS”) conducted a study consisting of a Rasch analysis of two separate surveys of surgeons to assess the accuracy of the assigned work RVU. Methods A survey was developed and sent to ninety-three ISASS surgeon committee members. Respondents were asked to compare CPT® 27279 to ten other comparator CPT® codes reflective of common spine surgeries. The survey presented each comparator CPT® code with its code descriptor as well as the description of CPT® 27279 and asked respondents to indicate whether CPT® 27279 was greater, equal, or less in terms of work effort than the comparator code. A second survey was sent to 557 U.S.-based spine surgeon members of ISASS and 241 spine surgeon members of the Society for Minimally Invasive Spine Surgery (“SMISS”). The design of the second survey mirrored that of the first survey except for the use of a broader set of comparator CPT® codes (27 vs. 10). Using the work RVUs of the comparator codes, a Rasch analysis was performed to estimate the relative difficulty of CPT® 27279, after which the work RVU of CPT® 27279 was estimated by regression analysis. Results Twenty surgeons responded to the first survey and thirty-four surgeons responded to the second survey. The results of the regression analysis of the first survey indicate a work RVU for CPT® 27279 of 14.36 and the results of the regression analysis of the second survey indicate a work RVU for CPT® 27279 of 14.1. Conclusion The Rasch analysis indicates that the current work RVU assigned to CPT® 27279 is undervalued at 9.03. Averaging the results of the regression analyses of the two surveys indicates a work RVU for CPT® 27279 of 14.23.

  16. Attitudes toward and experiences of gender issues among physician teachers: A survey study conducted at a university teaching hospital in Sweden

    Directory of Open Access Journals (Sweden)

    Westman Göran

    2008-02-01

    Full Text Available Abstract Background Gender issues are important to address during medical education, however research about the implementation of gender in medical curricula reports that there are obstacles. The aim of this study was to explore physician teachers' attitudes to gender issues. Methods As part of a questionnaire, physician teachers at Umeå University in Sweden were given open-ended questions about explanations for and asked to write examples why they found gender important or not. The 1 469 comments from the 243 respondents (78 women, 165 men were analyzed by way of content analysis. The proportion of comments made by men and women in each category was compared. Results We found three themes in our analysis: Understandings of gender, problems connected with gender and approaches to gender. Gender was associated with differences between women and men regarding behaviour and disease, as well as with inequality of life conditions. Problems connected with gender included: delicate situations involving investigations of intimate body parts or sexual attraction, different expectations on male and female physicians and students, and difficulty fully understanding the experience of people of the opposite sex. The three approaches to gender that appeared in the comments were: 1 avoidance, implying that the importance of gender in professional relationships was recognized but minimized by comparing gender with aspects, such as personality and neutrality; 2 simplification, implying that gender related problems were easy to address, or already solved; and 3 awareness, implying that the respondent was interested in gender issues or had some insights in research about gender. Only a few individuals described gender as an area of competence and knowledge. There were comments from men and women in all categories, but there were differences in the relative weight for some categories. For example, recognizing gender inequities was more pronounced in the comments

  17. Methodology in our madness

    Directory of Open Access Journals (Sweden)

    Peter Lynn

    2007-01-01

    Full Text Available It is a great pleasure to present the first issue of a new journal. However, the more sceptical reader might wonder whether yet another new journal is really needed. In this editorial we attempt to justify our self-indulgence and to set out our vision for Survey Research Methods.

  18. On methodology

    DEFF Research Database (Denmark)

    Cheesman, Robin; Faraone, Roque

    2002-01-01

    This is an English version of the methodology chapter in the authors' book "El caso Berríos: Estudio sobre información errónea, desinformación y manipulación de la opinión pública".......This is an English version of the methodology chapter in the authors' book "El caso Berríos: Estudio sobre información errónea, desinformación y manipulación de la opinión pública"....

  19. Mapping geological at risk areas in the city of São Paulo: issues and results from the largest risk survey in Brazil

    Science.gov (United States)

    Pascarelli, Luciana; Macedo, Eduardo

    2013-04-01

    In the City of São Paulo, the first reports of accidents resulting from landslides are directly related to urban expansion that has been recorded since the 30s. Areas of major environmental fragility, such as slopes and stream-banks, have also ended up being occupied without proper planning. The increased number of deaths due to landslides in the 80s already indicated the need for intervention at these sites by the public authorities. It was important to act to prevent these disasters, not only emergency assistance to victimized families. Therefore, in 1989 the first systematic and official survey on the City's at-risk areas was made. At the time, the at-risk sites had been still unknown, except for the occurrence records and press reports. While some areas were evaluated by experts, others appeared or expanded without any control. The surveys pace could not definitely follow the growth and the density of favelas, and some communities started to trigger the first records of accidents in areas hitherto stable. Considering the universe to be studied and the detail level of the work, it was necessary to use specific methodology to enable evaluation of the entire City in a relatively short period of time. For that purpose,mapping activities were carried out in five phases and involved about 80 professionals in the fields of geology, engineering, architecture, geography, civil defense, and housing, who participated directly or indirectly in all stages of work. Thus, the mapping that has recently been completed by the Municipality of São Paulo and by the Institute for Technological Research of São Paulo State is today the largest geological-risk database in the country. Besides technical information, the survey also shows the types of intervention to be implemented according to the degree of risk and the type of verified occupation, vital data to prioritizing the public-authorities actions. Currently, among the 1,602 favelas and informal settlements in the city, 407

  20. Fishing over the sides or over the stern: does it matter : comparison of two fishing methodologies in the Wadden Sea Demersal Fish Survey

    NARCIS (Netherlands)

    Chen, C.; Bolle, L.J.; Boois I.J. de, Ingeborg

    2016-01-01

    Since 1972, the Demersal Fish Survey (DFS) in the Wadden Sea has been carried out with the RV Stern. Within a few years this vessel will be replaced by another vessel as a result of the current ship replacement policy of Rijkswaterstaat Rijksrederij. It is not yet clear which vessel will replace RV

  1. Supply chain simulation tools and techniques: a survey

    NARCIS (Netherlands)

    Kleijnen, J.P.C.

    2005-01-01

    The main contribution of this paper is twofold: it surveys different types of simulation for supply chain management; it discusses several methodological issues. These different types of simulation are spreadsheet simulation, system dynamics, discrete-event simulation and business games. Which simul

  2. 粤语本字考订之观念与方法问题刍议%Conceptual and Methodological Issues in Textual Researches on Etymological Characters of Cantonese

    Institute of Scientific and Technical Information of China (English)

    周仕敏

    2015-01-01

    Textual research on etymological characters is a traditional part of research on Chinese dialects. Limited by the form of traditional textual research, existing researches on etymological characters have not reached any agreement on the definition of etymological characters, the connection between characters and pronunciation, the specific purpose of the researches and the methods used; meanwhile, a series of conceptions supposed to be implemented have not been put into practice. By analyzing typical researches in recent years, the present study aims to summarize some conceptual and methodological issues, which may be especially essential to the future progress in textual researches on etymological characters.%依本字考订乃方言研究中一个传统项目. 受传统考据体式局限,现有之方言本字考研究有时难以将本字之定义、"字"与语音之明确关系、考本字之明确目的与实际运用之研究方法内部统一起来;一系列早被公认应当揭櫫之研究观念,往往又未能付诸方法. 通过对近年来经典研究成果进行具体分析,尽可能系统总结若干观念与方法问题,对日后本字考订研究取得质的进步,显得尤为必要.

  3. 矿业权实地核查技术方法指南研究%Methodological studies of national survey and verification of mineral rights

    Institute of Scientific and Technical Information of China (English)

    杨建锋; 林燕; 孙炳旭; 王永志

    2011-01-01

    全国矿业权实地核查是一项复杂的系统工程,科学、实用、先进的技术方法是按期保质完成矿业权实地核查工作的前提条件.按照科学实用、便于操作、快捷高效、成果应用潜力等原则,本文提出了矿业权实地核查工作的技术流程,确定了矿业权实地核查关键技术参数,提出了全国矿业权实地核查的组织实施方式,用来指导和规范各个地区的矿业权实地核查工作.实践表明,本文所提出的矿业权实地核查技术方法指南达到了预期效果,保障了全国矿业权实地核查工作的顺利推进.%National survey and verification of mineral rights is a complicated systematic engineering. According to the scientific and practical, easy to operate, and high efficient principles for the project, the paper put forward the directive procedure of mineral rights survey and verification, determined some key technical parameters such as surveying coordinate systems, number and precision of surveying control points, format of attribute data and spatial data, etc. Through the experimental work in 4 typical counties, the paper proposed a work pattern of mineral rights survey and verification.

  4. HandiVIH—A population-based survey to understand the vulnerability of people with disabilities to HIV and other sexual and reproductive health problems in Cameroon: protocol and methodological considerations

    Science.gov (United States)

    De Beaudrap, Pierre; Pasquier, Estelle; Tchoumkeu, Alice; Touko, Adonis; Essomba, Frida; Brus, Aude; Desgrées du Loû, Annabel; Aderemi, Toyin Janet; Hanass-Hancock, Jill; Eide, Arne Henning; Mont, Daniel; Mac-Seing, Muriel; Beninguisse, Gervais

    2016-01-01

    Introduction In resource-limited countries, people with disabilities seem to be particularly vulnerable to HIV infection due to barriers to accessing information and services, frequent exposure to sexual violence and social exclusion. However, they have often been left behind in the HIV response, probably because of the lack of reliable epidemiological data measuring this vulnerability. Multiple challenges in conducting good quality epidemiological surveys on people with disabilities require innovative methods to better understand the link between disability and HIV. This paper describes how the design and methods of the HandiVIH study were adapted to document the vulnerability of people with disabilities to HIV, and to compare their situation with that of people without disabilities. Methods and analysis The HandiVIH project aims to combine quantitative and qualitative data. The quantitative component is a cross-sectional survey with a control group conducted in Yaoundé (Cameroon). A two-phase random sampling is used (1) to screen people with disabilities from the general population using the Washington Group questionnaire and, (2) to create a matched control group. An HIV test is proposed to each study participant. Additionally, a questionnaire including a life-event interview is used to collect data on respondents’ life-course history of social isolation, employment, sexual partnership, HIV risk factors and fertility. Before the cross-sectional survey, a qualitative exploratory study was implemented to identify challenges in conducting the survey and possible solutions. Information on people with disabilities begging in the streets and members of disabled people's organisations is collected separately. Ethics and dissemination This study has been approved by the two ethical committees. Special attention has been paid on how to adapt the consenting process to persons with intellectual disabilities. The methodological considerations discussed in this paper may

  5. Methodological guidelines

    Energy Technology Data Exchange (ETDEWEB)

    Halsnaes, K.; Callaway, J.M.; Meyer, H.J.

    1999-04-01

    The guideline document establishes a general overview of the main components of climate change mitigation assessment. This includes an outline of key economic concepts, scenario structure, common assumptions, modelling tools and country study assumptions. The guidelines are supported by Handbook Reports that contain more detailed specifications of calculation standards, input assumptions and available tools. The major objectives of the project have been provided a methodology, an implementing framework and a reporting system which countries can follow in meeting their future reporting obligations under the FCCC and for GEF enabling activities. The project builds upon the methodology development and application in the UNEP National Abatement Coasting Studies (UNEP, 1994a). The various elements provide countries with a road map for conducting climate change mitigation studies and submitting national reports as required by the FCCC. (au) 121 refs.

  6. Conceptualization and measurement of homosexuality in sex surveys: a critical review

    OpenAIRE

    Michaels Stuart; Lhomond Brigitte

    2006-01-01

    This article reviews major national population sex surveys that have asked questions about homosexuality focusing on conceptual and methodological issues, including the definitions of sex, the measured aspects of homosexuality, sampling and interviewing technique, and questionnaire design. Reported rates of major measures of same-sex attraction, behavior, partners, and sexual identity from surveys are also presented and compared. The study of homosexuality in surveys has been shaped by the re...

  7. 农村土地调查基本农田上图方法%Basic Farmland Mapping Methodology in Rural Land Survey

    Institute of Scientific and Technical Information of China (English)

    钱小龙

    2014-01-01

    土地是人类赖以生存和社会发展的物质基础,耕地是农业生产最基本、不可替代的生产资料。基本农田调查是农村土地调查最为重要的一个部分,基本农田上图工作对于政府部门制定土地政策、优化土地结构、保护耕地、提高耕地质量具有十分重要的意义。本文从基本农田概念的引入、基本农田上图技术流程、基本农田保护块上图以及图件编制、数据汇总几个方面阐述了农村土地调查基本农田的上图方法。%The Material Basis of human existence and social development is Land ;Cultivated Land is the fundamental and irreplacea-ble production is in Agricultural Production .Basic Farmland survey is the most important part of the rural land survey , Basic Farmland Mapping has great significance on developing land policy , optimizing land structure , protecting farmland and improving quality of ara-ble land.This paper elaborates method of Basic Farmland Mapping in rural land survey from several aspects , such as the concept of basic farmland , the technical processes of basic farmland mapping , basic farmland protection block diagram , and map edit and data aggregation .

  8. A survey of attitudes and factors associated with successful cardiopulmonary resuscitation (CPR knowledge transfer in an older population most likely to witness cardiac arrest: design and methodology

    Directory of Open Access Journals (Sweden)

    Brehaut Jamie C

    2008-11-01

    Full Text Available Abstract Background Overall survival rates for out-of-hospital cardiac arrest rarely exceed 5%. While bystander cardiopulmonary resuscitation (CPR can increase survival for cardiac arrest victims by up to four times, bystander CPR rates remain low in Canada (15%. Most cardiac arrest victims are men in their sixties, they usually collapse in their own home (85% and the event is witnessed 50% of the time. These statistics would appear to support a strategy of targeted CPR training for an older population that is most likely to witness a cardiac arrest event. However, interest in CPR training appears to decrease with advancing age. Behaviour surrounding CPR training and performance has never been studied using well validated behavioural theories. Methods/Design The overall goal of this study is to conduct a survey to better understand the behavioural factors influencing CPR training and performance in men and women 55 years of age and older. The study will proceed in three phases. In phase one, semi-structured qualitative interviews will be conducted and recorded to identify common categories and themes regarding seeking CPR training and providing CPR to a cardiac arrest victim. The themes identified in the first phase will be used in phase two to develop, pilot-test, and refine a survey instrument based upon the Theory of Planned Behaviour. In the third phase of the project, the final survey will be administered to a sample of the study population over the telephone. Analyses will include measures of sampling bias, reliability of the measures, construct validity, as well as multiple regression analyses to identify constructs and beliefs most salient to seniors' decisions about whether to attend CPR classes or perform CPR on a cardiac arrest victim. Discussion The results of this survey will provide valuable insight into factors influencing the interest in CPR training and performance among a targeted group of individuals most susceptible to

  9. Questões metodológicas da pesquisa no campo da saúde Aspectos metodológicos de la investigación en el campo de la salud Methodological issues concerning research in the health field

    Directory of Open Access Journals (Sweden)

    Neusa Collet

    2001-05-01

    Full Text Available Este trabalho tem por objetivo apresentar reflexão sobre o método de pesquisa no campo da saúde. Algumas questões que envolvem o emprego do método das ciências naturais e o método das ciências sociais são apresentadas, buscando compreender alguns problemas metodológicos de um e de outro. Problemas relacionados às questões metodológicas na elaboração de um projeto de investigação são pontuados: diferenciação da natureza do objeto de investigação; contexto em que determinado problema é identificado; tipo de pergunta ao problematizá-lo; procedimentos técnicos, teoria e esquema interpretativo; dicotomia sujeito/objeto do conhecimento; neutralidade do pesquisador; conceito de causalidade.Este trabajo tiene como objetivo presentar una reflexión sobre el método de investigación en el campo de la salud. Presentamos algunas cuestiones que encierran el empleo de las ciencias naturales y el método de las ciencias sociales, tratando de esclarecer algunos problemas metodológicos tanto de uno como del otro. Abordamos problemas relacionados con los aspectos metodológicos para la elaboración de un proyecto de investigación que necesitan ser continuamente discutidos, incluyendo: la diferenciación de la naturaleza del objetivo de la investigación, el contexto en que determinado problema es identificado, el tipo de pregunta que se hace al problematizarlo, los procedimientos técnicos, la teoría y el esquema interpretativo que lo fundamentan; la dicotomía sujeto/objeto del conocimiento, la neutralidad del investigador, el concepto de causalidad.This work aims at presenting a reflection on the method of research in the health field. Some questions are presented which involve the use of the method of natural sciences and that of social sciences in an attempt at understanding some methodological problems concerning the former and the latter. Problems related to the methodological issues in the elaboration of investigation projects

  10. Guidelines for the verification and validation of expert system software and conventional software: Survey and documentation of expert system verification and validation methodologies. Volume 3

    Energy Technology Data Exchange (ETDEWEB)

    Groundwater, E.H.; Miller, L.A.; Mirsky, S.M. [Science Applications International Corp., McLean, VA (United States)

    1995-03-01

    This report is the third volume in the final report for the Expert System Verification and Validation (V&V) project which was jointly sponsored by the Nuclear Regulatory Commission and the Electric Power Research Institute. The ultimate objective is the formulation of guidelines for the V&V of expert systems for use in nuclear power applications. The purpose of this activity was to survey and document techniques presently in use for expert system V&V. The survey effort included an extensive telephone interviewing program, site visits, and a thorough bibliographic search and compilation. The major finding was that V&V of expert systems is not nearly as established or prevalent as V&V of conventional software systems. When V&V was used for expert systems, it was almost always at the system validation stage after full implementation and integration usually employing the non-systematic dynamic method of {open_quotes}ad hoc testing.{close_quotes} There were few examples of employing V&V in the early phases of development and only weak sporadic mention of the possibilities in the literature. There is, however, a very active research area concerning the development of methods and tools to detect problems with, particularly, rule-based expert systems. Four such static-testing methods were identified which were not discovered in a comprehensive review of conventional V&V methods in an earlier task.

  11. Research methodology

    DEFF Research Database (Denmark)

    Kuada, John

    This book deals with how students should use of research methods in their university projects. It aims at helping students in developing comprehensive research strategies for their projects. It also provides introduction to issues of philosophy of science as applied in the social sciences. That i...

  12. Mass Media and Political Issue Perceptions.

    Science.gov (United States)

    Hofstetter, C. Richard; Strand, Paul J.

    1983-01-01

    Based on one intensive survey of media behavior and a series of other national surveys, the study shows that holding issue positions and perceptions of major party candidates' issue positions are functions of media exposure to public affairs media. (Author)

  13. Multifractal methodology

    CERN Document Server

    Salat, Hadrien; Arcaute, Elsa

    2016-01-01

    Various methods have been developed independently to study the multifractality of measures in many different contexts. Although they all convey the same intuitive idea of giving a "dimension" to sets where a quantity scales similarly within a space, they are not necessarily equivalent on a more rigorous level. This review article aims at unifying the multifractal methodology by presenting the multifractal theoretical framework and principal practical methods, namely the moment method, the histogram method, multifractal detrended fluctuation analysis (MDFA) and modulus maxima wavelet transform (MMWT), with a comparative and interpretative eye.

  14. Survey on Security Issues in Software Defined Networks%软件定义网络架构下的安全问题综述

    Institute of Scientific and Technical Information of China (English)

    郁峰

    2014-01-01

    随着网络业务的多元化与网络基础服务能力的不断提升,企业网、云计算、数据中心等大量新兴应用场景迅速丰富,传统网络已不能满足其不断涌现的可扩展性、可管理性及安全保障等新需求,这一现状有力地推动以SDN为代表的当代网络架构的发展。然而随着学术界与产业界对SDN技术的研究及其设备的普及,安全问题逐渐成为制约其进一步发展的关键因素之一。针对SDN架构的技术发展背景进行分析,然后简析SDN技术的核心架构原理及目前的发展现状;结合SDN架构特点,针对其安全特性及其所面临的安全威胁进行详细分析,并深入讨论SDN网络安全研究的范畴与新兴发展方向。%SDN is a new network architecture that achieves the separation between the network logical control function and the data forwarding function. With SDN technology and related equipment gradually mature and practical, the security issues have received increasing atten-tion. Presents a comprehensive survey of the research relating to security in software-defined networking. Discusses both the security en-hancements for SDN and the security challenges introduced by the SDN framework in details. Also sums up and presents a set of research fields and future research directions.

  15. MOTOR VEHICLE SAFETY RESEARCH METHODOLOGY

    Directory of Open Access Journals (Sweden)

    A. Stepanov

    2015-07-01

    Full Text Available The issues of vehicle safety are considered. The methodology of approach to analyzing and solving the problem of safety management of vehicles and overall traffic is offered. The distinctive features of organization and management of vehicle safety are shown. There has been drawn a conclusion that the methodological approach to solving traffic safety problems is reduced to selection and classification of safety needs.

  16. [National survey of transfusion practices in the neonatal period for the development of recommendations based on the "Haute Autorité de Santé methodology"].

    Science.gov (United States)

    Wibaut, B; Saliba, E; Rakza, T; Lassale, B; Hubert, H; Wiel, E

    2012-11-01

    Although transfusion practices have changed these last years, the neonatal period remains one period when the transfusion of blood components (in particular in red blood cells concentrates) is frequent, particularly for low birth weight premature babies. It is thus important to know well the pathophysiological characteristics specific to this age of life in order to reduce the risks of transfusion and to allow an optimal effectiveness of this treatment. Various studies on neonatal transfusion show that transfusion practices during the neonatal period are very heterogeneous from a team to another, and even within the same team. Therefore, we wanted to know the practices in France, by addressing a questionnaire to neonatology centres, in collaboration with the French Society Vigilance and Transfusion Therapy and the French Society of Neonatology (SFN). The results obtained confirm the heterogeneity of practices. To follow up on this study, we constituted a working group, in partnership with the SFN, the SFVTT and the EFS, with an aim of proposing good practice recommendations according to the methodology of the French "High Authority for Health", in order to homogenize at the national level transfusion practices of the new-born baby.

  17. The Hubble Space Telescope Medium Deep Survey with the Wide Field and Planetary Camera. 1: Methodology and results on the field near 3C 273

    Science.gov (United States)

    Griffiths, R. E.; Ratnatunga, K. U.; Neuschaefer, L. W.; Casertano, S.; Im, M.; Wyckoff, E. W.; Ellis, R. S.; Gilmore, G. F.; Elson, R. A. W.; Glazebrook, K.

    1994-01-01

    We present results from the Medium Deep Survey (MDS), a Key Project using the Hubble Space Telescope (HST). Wide Field Camera (WFC) images of random fields have been taken in 'parallel mode' with an effective resolution of 0.2 sec full width at half maximum (FWHM) in the V(F555W) and I(F785LP) filters. The exposures presented here were targeted on a field away from 3C 273, and resulted in approximately 5 hr integration time in each filter. Detailed morphological structure is seen in galaxy images with total integrated magnitudes down to V approximately = 22.5 and I approximately = 21.5. Parameters are estimated that best fit the observed galaxy images, and 143 objects are identified (including 23 stars) in the field to a fainter limiting magnitude of I approximately = 23.5. We outline the extragalactic goals of the HST Medium Deep Survey, summarize our basic data reduction procedures, and present number (magnitude) counts, a color-magnitude diagram for the field, surface brightness profiles for the brighter galaxies, and best-fit half-light radii for the fainter galaxies as a function of apparent magnitude. A median galaxy half-light radius of 0.4 sec is measured, and the distribution of galaxy sizes versus magnitude is presented. We observe an apparent deficit of galaxies with half-light radii between approximately 0.6 sec and 1.5 sec, with respect to standard no-evolution or mild evolution cosmological models. An apparent excess of compact objects (half-light radii approximately 0.1 sec) is also observed with respect to those models. Finally, we find a small excess in the number of faint galaxy pairs and groups with respect to a random low-redshift field sample.

  18. Issue Management Risk Ranking Systems

    Energy Technology Data Exchange (ETDEWEB)

    Novack, Steven David; Marshall, Frances Mc Clellan; Stromberg, Howard Merion; Grant, Gary Michael

    1999-06-01

    Thousands of safety issues have been collected on-line at the Idaho National Engineering and Environmental Laboratory (INEEL) as part of the Issue Management Plan. However, there has been no established approach to prioritize collected and future issues. The authors developed a methodology, based on hazards assessment, to identify and risk rank over 5000 safety issues collected at INEEL. This approach required that it was easily applied and understandable for site adaptation and commensurate with the Integrated Safety Plan. High-risk issues were investigated and mitigative/preventive measures were suggested and ranked based on a cost-benefit scheme to provide risk-informed safety measures. This methodology was consistent with other integrated safety management goals and tasks providing a site-wide risk informed decision tool to reduce hazardous conditions and focus resources on high-risk safety issues. As part of the issue management plan, this methodology was incorporated at the issue collection level and training was provided to management to better familiarize decision-makers with concepts of safety and risk. This prioritization methodology and issue dissemination procedure will be discussed. Results of issue prioritization and training efforts will be summarized. Difficulties and advantages of the process will be reported. Development and incorporation of this process into INEELs lessons learned reporting and the site-wide integrated safety management program will be shown with an emphasis on establishing self reliance and ownership of safety issues.

  19. Issue Management Risk Ranking Systems

    Energy Technology Data Exchange (ETDEWEB)

    F. M. Marshall; G. M. Grant; H. M. Stromberg; S. D. Novack

    1999-06-01

    Thousands of safety issues have been collected on-line at the Idaho National Engineering and Environmental Laboratory (INEEL) as part of the Issue Management Plan. However, there has been no established approach to prioritize collected and future issues. The authors developed a methodology, based on hazards assessment, to identify and risk rank over 5000 safety issues collected at INEEL. This approach required that it was easily applied and understandable for site adaptation and commensurate with the Integrated Safety Plan. High-risk issues were investigated and mitigative/preventive measures were suggested and ranked based on a cost-benefit scheme to provide risk-informed safety measures. This methodology was consistent with other integrated safety management goals and tasks providing a site-wide risk-informed decision tool to reduce hazardous conditions and focus resources on high-risk safety issues. As part of the issue management plan, this methodology was incorporated at the issue collection level and training was provided to management to better familiarize decision-makers with concepts of safety and risk. This prioritization methodology and issue dissemination procedure will be discussed. Results of issue prioritization and training efforts will be summarized. Difficulties and advantages of the process will be reported. Development and incorporation of this process into INEEL's lessons learned reporting and the site-wide integrated safety management program will be shown with an emphasis on establishing self reliance and ownership of safety issues.

  20. Research methodology

    DEFF Research Database (Denmark)

    Kuada, John

    This book deals with how students should use of research methods in their university projects. It aims at helping students in developing comprehensive research strategies for their projects. It also provides introduction to issues of philosophy of science as applied in the social sciences....... That is it provides them with a fair understanding of the root assumptions that guide researchers in their investigations and how these assumptions inform their theoretical thinking and choice of methods....