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Methodological Challenges (methodological + challenge)
Selected AbstractsAPPRAISING THE ETHOS OF EXPERIENTIAL NARRATIVES: KEY ASPECTS OF A METHODOLOGICAL CHALLENGEEDUCATIONAL THEORY, Issue 1 2009Carola Conle In this essay, Carola Conle and Michael deBeyer describe their efforts to find a conceptual approach and methodology for the appraisal of the ethos of experiential narratives presented in a particular curriculum context. The language of "implied authorship,""the patterning of desire," and "friendships offered and received," first introduced by Wayne Booth, is elaborated through data from narrative presentations given by local heroes to students. Appraisals seemed possible when a narrative could be placed on Booth's "scales of friendship" and when the rational qualities of experiential narratives were considered. In addition, data needed to be available in which students' experiential encounters with the narratives could be seen as occasions where, during such moments of encounter, feelings and desires were created, memories were activated, and events and actions in a narrative were vicariously experienced through those activated phenomena. The authors offer a potential framework for future appraisals. [source] Describing the Unobserved: Methodological Challenges in Empirical Studies on Human TraffickingINTERNATIONAL MIGRATION, Issue 1-2 2005Guri Tyldum First page of article [source] Methodological Challenges in Research with Trafficked Persons: Tales from the FieldINTERNATIONAL MIGRATION, Issue 1-2 2005Denise Brennan First page of article [source] Emotion Regulation as a Scientific Construct: Methodological Challenges and Directions for Child Development ResearchCHILD DEVELOPMENT, Issue 2 2004Pamela M. Cole Emotion regulation has emerged as a popular topic, but there is doubt about its viability as a scientific construct. This article identifies conceptual and methodological challenges in this area of study and describes exemplar studies that provide a substantive basis for inferring emotion regulation. On the basis of those studies, 4 methods are described that provide compelling evidence for emotion regulation: independent measurement of activated emotion and purported regulatory processes; analysis of temporal relations; measurement across contrasting conditions; and multiple, convergent measures. By offering this perspective, this article aims to engage thoughtful debate and critical analysis, with the goal of increasing methodological rigor and advancing an understanding of emotion regulation as a scientific construct. [source] Methodological challenges in assessing general population reactions in the immediate aftermath of a terrorist attackINTERNATIONAL JOURNAL OF METHODS IN PSYCHIATRIC RESEARCH, Issue S2 2008G. James Rubin Abstract Assessing mental health needs following a disaster is important, particularly within high-risk groups such as first responders or individuals who found themselves directly caught up in the incident. Particularly following events involving widespread destruction, ingenuity and hard work are required to successfully study these issues. When considering responses among the general population following less devastating events such as a conventional terrorist attack, or following an event involving a chemical, biological, radiological or nuclear agent, other variables may become more relevant for determining the population's overall psychosocial well-being. Trust, perceived risk, sense of safety, willingness to take prophylaxis and unnecessary attendance at medical facilities will all be important in determining the overall psychological, medical, economic and political impact of such attacks. Assessing these variables can help government agencies and non-governmental organizations to adjust their communication and outreach efforts. As there is often a need to provide these data quickly, telephone surveys using short time-windows for data collection or which use quota samples are often required. It is unclear whether slower, more conventional and more expensive survey methods with better response rates would produce results different enough to these quicker and cheaper methods to have a major impact on any resulting policy decisions. This empirical question would benefit from further study. Copyright © 2008 John Wiley & Sons, Ltd. [source] Methodological challenges when monitoring the diet of pregnant women in a large study: experiences from the Norwegian Mother and Child Cohort Study (MoBa)MATERNAL & CHILD NUTRITION, Issue 1 2008Helle Margrete Meltzer Abstract The aim of this article is to describe the main methodological challenges in the monitoring of dietary intake in the Norwegian Mother and Child Cohort Study (MoBa), a pregnancy cohort aiming to include 100 000 participants. The overall challenge was to record dietary patterns in sufficient detail to support future testing of a broad range of hypotheses, while at the same time limiting the burden on the participants. The main questions to be answered were: which dietary method to choose, when in pregnancy to ask, which time period should the questions cover, which diet questions to include, how to perform a validation study, and how to handle uncertainties in the reporting. Our decisions were as follows: using a semi-quantitative food frequency questionnaire (FFQ) (in use from 1 March 2002), letting the participants answer in mid-pregnancy, and asking the mother what she has eaten since she became pregnant. The questions make it possible to estimate intake of food supplements, antioxidants and environmental contaminants in the future. Misreporting is handled by consistency checks. Reports with a calculated daily energy intake of <4.5 and >20 MJ day,1 are excluded, about 1% in each end of the scale. A validation study confirmed that the included intakes are realistic. The outcome of our methodological choices indicates that our FFQ strikes a reasonable balance between conflicting methodological and scientific interests, and that our approach therefore may be of use to others planning to monitor diet in pregnancy cohorts. [source] Pre- and postnatal influences on preschool mental health: a large-scale cohort studyTHE JOURNAL OF CHILD PSYCHOLOGY AND PSYCHIATRY AND ALLIED DISCIPLINES, Issue 10 2008Monique Robinson Background:, Methodological challenges such as confounding have made the study of the early determinants of mental health morbidity problematic. This study aims to address these challenges in investigating antenatal, perinatal and postnatal risk factors for the development of mental health problems in pre-school children in a cohort of Western Australian children. Methods:, The Raine Study is a prospective cohort study of 2,868 live born children involving 2,979 pregnant women recruited at 18 weeks gestation. Children were followed up at age two and five years. The Child Behaviour Checklist (CBCL) was used to measure child mental health with clinical cut-points, including internalising (withdrawn/depressed) and externalising (aggressive/destructive) behaviours (n = 1707). Results:, Multinomial logistic regression analysis showed that the significant risk factors for behaviour problems at age two were the maternal experience of multiple stress events in pregnancy (OR = 1.20, 95% CI = 1.06, 1.37), smoking during pregnancy (OR = 1.30, 95% CI = 1.06, 1.59) and maternal ethnicity (OR = 3.34, 95% CI = 1.61, 6.96). At age five the experience of multiple stress events (OR = 1.17, 95% CI = 1.08, 1.27), cigarette smoking (OR = 1.19, 95% CI = 1.03, 1.37), male gender (OR = 1.43, 95% CI = 1.02, 2.00), breastfeeding for a shorter time (OR = .97, 95% CI = .94, .99) and multiple baby blues symptoms (OR = 1.08, 95% CI = 1.02, 1.14) were significant predictors of mental health problems. Conclusions:, Early childhood mental health is significantly affected by prenatal events in addition to the child's later environment. Interventions targeting adverse prenatal, perinatal and postnatal influences can be expected to improve mental health outcomes for children in the early years. [source] Differential effects of high-quality child careJOURNAL OF POLICY ANALYSIS AND MANAGEMENT, Issue 4 2002Jennifer Hill In policy research a frequent aim is to estimate treatment effects separately by subgroups. This endeavor becomes a methodological challenge when the subgroups are defined by post-treatment, rather than pre-treatment, variables because if analyses are performed in the same way as with pre-treatment variables, causal interpretations are no longer valid. The authors illustrate a new approach to this challenge within the context of the Infant Health and Development Program, a multisite randomized study that provided at-risk children with intensive, center-based child care. This strategy is used to examine the differential causal effects of access to high-quality child care for children who would otherwise have participated in one of three child care options: no non-maternal care, home-based non-maternal care, and center-based care. Results of this study indicate that children participating in the first two types of care would have gained the most from high-quality center-based care and, moreover, would have more consistently retained the bulk of these positive benefits over time. These results may have implications for policy, particularly with regard to the debate about the potential implications of providing universal child care. © 2002 by the Association for Public Policy Analysis and Management. [source] Dimensions and elements of people's mental models of an information-rich Web spaceJOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 11 2010Yan Zhang Although considered proxies for people to interact with a system, mental models have produced limited practical implications for system design. This might be due to the lack of exploration of the elements of mental models resulting from the methodological challenge of measuring mental models. This study employed a new method, concept listing, to elicit people's mental models of an information-rich space, MedlinePlus, after they interacted with the system for 5 minutes. Thirty-eight undergraduate students participated in the study. The results showed that, in this short period of time, participants perceived MedlinePlus from many different aspects in relation to four components: the system as a whole, its content, information organization, and interface. Meanwhile, participants expressed evaluations of or emotions about the four components. In terms of the procedural knowledge, an integral part of people's mental models, only one participant identified a strategy more aligned to the capabilities of MedlinePlus to solve a hypothetical task; the rest planned to use general search and browse strategies. The composition of participants' mental models of MedlinePlus was consistent with that of their models of information-rich Web spaces in general. [source] Research sensitivities to palliative care patientsEUROPEAN JOURNAL OF CANCER CARE, Issue 3 2002J. Addington-Hall phd Research sensitivities to palliative care patients This paper considers the methodological challenges of researching the health care experiences of palliative care patients and their families. Difficulties in defining a ,palliative care patient' are highlighted, and the question of whether there are specific ethical issues when researching palliative care explored. Methodological issues are discussed, including the negotiation of access via health professionals, the choice of appropriate data collection methods and tools, the consequences of high attrition rates and the use of retrospective surveys of bereaved relatives. Key areas for research are identified. These include patients' and families' experiences of research participation, the impact of being approached on those who decline, how the characteristics of those who participate differ from those who do not and the likely impact of this on findings. Research is also needed into patient and family motivations for participation, and whether and how these change as the disease progresses. To ensure that the voices of palliative care patients and their families are heard by both service providers and policy-makers, research in this area needs to address the methodological challenges raised in this paper, as well as continuing to explore users' views. [source] Twenty-five strategies for improving the design, implementation and analysis of health services research related to alcohol and other drug abuse treatmentADDICTION, Issue 11s3 2000Michael L. Dennis While some aspects of addiction can be studied in laboratory or controlled settings, the study of long-term recovery management and the health services that support it requires going out into the community and dealing with populations and systems that are much more diverse and less under our control. This in turn raises many methodological challenges for the health service researchers studying alcohol and other drug abuse treatment. This paper identifies some of these challenges related to the design, measurement, implementation and effectiveness of health services research. It then recommends 25 strategies (and key primers) for addressing them: (1) identifying in advance all stakeholders and issues; (2) developing conceptual models of intervention and context; (3) identifying the population to whom the conclusions will be generalized; (4) matching the research design to the question; (5) conducting randomized experiments only when appropriate and necessary; (6) balancing methodological and treatment concerns; (7) prioritizing analysis plans and increasing design sensitivity, (8) combining qualitative and quantitative methods; (9) identifying the four basic types of measures needed; (10) identifying and using standardized measures; (11) carefully balancing measurement selection and modification; (12) developing and evaluating modified and new measures when necessary; (13) identifying and tracking major clinical subgroups; (14) measuring and analyzing the actual pattern of services received; (15) incorporating implementation checks into the design; (16) inc rporating baseline measures into the intervention; (17) monitoring implementation and dosage as a form of quality assurance; (18) developing procedures early to facilitate tracking and follow-up of study participants; (19) using more appropriate representations of the actual experiment; (20) using appropriate and sensitive standard deviation terms; (21) partialing out variance due to design or known sources prior to estimating experimental effect sizes; (22) using dimensional, interval and ratio measures to increase sensitivity to change; (23) using path or structural equation models; (24) integrating qualitative and quantitative analysis into reporting; and (25) using quasi-experiments, economic or organizational studies to answer other likely policy questions. Most of these strategies have been tried and tested in this and other areas, but are not widely used. Improving the state of the art of health services research and bridging the gap between research and practice do not depend upon using the most advanced methods, but rather upon using the most appropriate methods. [source] Developing evidence-based recommendations in public health , incorporating the views of practitioners, service users and user representativesHEALTH EXPECTATIONS, Issue 1 2008Mary J Renfrew Abstract Background Guidance based on a systematic assessment of the evidence base has become a fundamental tool in the cycle of evidence-based practice and policy internationally. The process of moving from the formal evidence base derived from research studies to the formation and agreement of recommendations is however acknowledged to be problematic, especially in public health; and the involvement of practitioners, service commissioners and service users in that process is both important and methodologically challenging. Aim To test a structured process of developing evidence-based recommendations in public health while involving a broad constituency of practitioners, service commissioners and service user representatives. Methods As part of the development of national public health recommendations to promote and support breastfeeding in England, the methodological challenges of involving stakeholders were examined and addressed. There were three main stages: (i) an assessment of the formal evidence base (210 studies graded); (ii) electronic and fieldwork-based consultation with practitioners, service commissioners and service user representatives (563 participants), and an in-depth analytical consultation in three ,diagonal slice' workshops (89 participants); (iii) synthesis of the previous two stages. Results and conclusions The process resulted in widely agreed recommendations together with suggestions for implementation. It was very positively evaluated by participants and those likely to use the recommendations. Service users had a strong voice throughout and participated actively. This mix of methods allowed a transparent, accountable process for formulating recommendations based on scientific, theoretical, practical and expert evidence, with the added potential to enhance implementation. [source] Developing an assessment tool for evaluating community involvementHEALTH EXPECTATIONS, Issue 1 2005Jane South BA RGN MA Abstract Background, Current UK policy has resulted in greater requirements for public and patient participation in health service planning and decision making. Organizations and services need to be able to monitor and evaluate the effectiveness and quality of their community involvement processes, but there are few appropriate evaluation tools or sets of indicators available. This paper reports on work within Bradford Health Action Zone to develop a self-assessment tool for organizations on community involvement. Methods, A multi-agency working group developed the tool. A literature search was undertaken and evaluation resources were reviewed. A set of benchmarks for community involvement in regeneration was utilized in developing the assessment areas. A range of individuals with expertise on community involvement practice and performance management was consulted. The tool was then piloted in two primary care trusts prior to final modifications. Results, The process resulted in the production of Well Connected , a self-assessment tool on community involvement designed for organizations to assess their progress and identify areas for improvement. A scoring system assesses evidence of a strategic approach to community involvement, good practice throughout the organization, and a range of opportunities and support. Feedback from the pilots revealed that the tool had facilitated assessment of the strengths and weaknesses of organizational practices. Conclusion, The paper discusses some of the methodological challenges pertaining to the measurement of community involvement. Notwithstanding those challenges, it is argued that Well Connected provides a robust and practical framework that health organizations and their partners can use to assess practice. [source] Introduction: Researching Democracy and Social Change with Violence in the ForegroundIDS BULLETIN, Issue 3 2009Jenny Pearce There are many studies of violence within specific fields of the social sciences, but the next stage in our evolving understanding of violence may lie with interdisciplinary approaches. By traversing traditional academic categories, violence as a variable may become more visible in its multiple modes. It is through our ability to see the linkages between interpersonal, cultural, collective, political, state, interstate and structural violences that we can gain a better understanding of its persistence in human interactions. Researchers for this IDS Bulletin set out not only to understand contemporary dynamics of violence, but also to work with people trapped in violent places, spaces and histories who were willing to talk about and act upon their situation. Researching violence in an interactive way with those living in the thick of it posed many ethical, safety, epistemological and methodological challenges. These are documented in this IDS Bulletin alongside findings on the dimensions and impact of violence in different contexts. [source] Organizational failure: a critique of recent research and a proposed integrative frameworkINTERNATIONAL JOURNAL OF MANAGEMENT REVIEWS, Issue 1 2004Kamel Mellahi There is a long-running debate in the business literature on the causes of organizational failure. On the one hand, classical industrial organization (IO) and organization ecology (OE) scholars have typically assumed a deterministic role of the environment and argued that managers are constrained by exogenous industrial and environmental constraints leaving them with little real strategic choice, and hence managers' role should be ignored. On the other hand, the organization studies (OS) and organizational psychology (OP) literature takes a more voluntaristic perspective and argues that managers are the principal decision makers of the firm and, consequently, their actions and perceptions are the fundamental cause of organizational failure. This paper addresses the major deficiencies observed in the diverse body of literature covering this field, suggests an integrative framework and identifies the specific theoretical and methodological challenges ahead for researchers seeking to advance knowledge in the field of organizational failure. [source] Mapping the organizational culture research in nursing: a literature reviewJOURNAL OF ADVANCED NURSING, Issue 5 2006Shannon Scott-Findlay PhD RN Aim., This paper reports a critical review of nursing organizational culture research studies with the objectives of: (1) reviewing theoretical and methodological characteristics of the studies and (2) drawing inferences specific to the state of knowledge in this field. Background., Organizational culture is regarded as significant in influencing research use in clinical practice yet it is not understood how culture shapes practitioners' behaviours. Only one review of this empirical literature in nursing has been completed. Method., Using selected computerized databases, published nursing research studies in English that examine organizational culture were accessed. Organizational culture studies were categorized using Hatch's three perspectives on organizational culture: (1) modern, (2) symbolic-interpretive and (3) postmodern. The review was conducted in 2005. Results., Twenty-nine studies were in the final data set. Results pointed to variations in cultural definitions and incorporation of organizational sciences theory. In classifying the studies, modern perspectives dominated (n = 22), symbolic-interpretive approaches were an emerging group (n = 6) and one study was unclassifiable. Our results expand current cultural instrument reviews by pinpointing tools that have been previously overlooked and by identifying ongoing theoretical and methodological challenges for researchers. Conclusion., An exclusive reliance on modernistic approaches in organizational culture research cannot yield a complete understanding of the phenomenon. Rather, the field could benefit from a variety of cultural approaches. In a similar vein, researchers need to be mindful of the terminology and the unit of analysis they use in their research, as these are the two largest research challenges. [source] Using Nanotechnology for the Substitution of Hazardous Chemical SubstancesJOURNAL OF INDUSTRIAL ECOLOGY, Issue 3 2008Challenges of Definition, Measurement Summary It is often assumed that nanotechnology (NT) holds the potential to provide a substantial contribution to the solution of various ecological problems, including high consumption of energy and materials and the generation of waste. However, problems surrounding the use and release of hazardous substances remain largely unexplored. For this reason, the Scientific Technical Option Assessment (STOA) Panel of the European Parliament initiated a study on "The Role of Nanotechnology in Chemical Substitution." The subject and aim of the study was an investigation into preexisting and potential applications of NT that could lead to a reduction in hazardous substances by providing substitutes for them. In terms of method, it was based on electronic searches of the literature, expert interviews, and an expert workshop. This article discusses the results of the project. It focuses on the methodological challenges and the principal problems resulting from a combination of the broad and ill-defined concept of NT and the specific concept of hazardous substances. The hazardous substances addressed had to be reduced to a manageable number, and the term substitution was understood according to the characteristics of NT and the way in which the latter could reduce the use of hazardous substances. Although several applications of NT were identified that could lead to a considerable reduction in the use of hazardous substances, ambiguities in both the concept of NT and the concept of substitution in relation to NT prevent a comprehensive assessment of the potential of NT in respect to substitution. [source] Parents' Union Dissolution and Adolescents' School Performance: Comparing Methodological ApproachesJOURNAL OF MARRIAGE AND FAMILY, Issue 3 2007Michelle L. Frisco We use data from the National Longitudinal Study of Adolescent Health and the Adolescent Health and Academic Achievement Study to estimate how parents' union dissolution influences changes in adolescents' mathematics course work gains, overall grade point average, and course failure rates during a window of approximately 1 year (N =2,629). A primary purpose of this study is demonstrating the utility of propensity score matching techniques for studying topics such as ours that pose methodological challenges such as dealing with endogeneity and selection bias. We compare propensity score matching techniques to ordinary least squares (OLS) regression methods to show and discuss comparability of results obtained using these different procedures. Findings suggest that associations between parents' union dissolution and achievement may be causal, regardless of method used. [source] Explaining Family Change and Variation: Challenges for Family DemographersJOURNAL OF MARRIAGE AND FAMILY, Issue 4 2005Judith A. Seltzer Twenty years ago, the National Institute of Child Health and Human Development (NICHD) issued a request for proposals that resulted in the National Survey of Families and Households (NSFH), a unique survey valuable to a wide range of family scholars. This paper describes the efforts of an interdisciplinary group of family demographers to build on the progress enabled by the NSFH and many other theoretical and methodological innovations. Our work, also supported by NICHD, will develop plans for research and data collection to address the central question of what causes family change and variation. We outline the group's initial assessments of orienting frameworks, key aspects of family life to study, and theoretical and methodological challenges for research on family change. Finally, we invite family scholars to follow our progress and to help develop this shared public good. [source] School-Based Health Centers and Academic Performance: Research, Challenges, and RecommendationsJOURNAL OF SCHOOL HEALTH, Issue 9 2004Sara Peterson Geierstanger ABSTRACT: School-based health centers (SBHCs) provide physical and mental health services on school campuses to improve student health status, and thereby potentially facilitate student academic success. With a growing emphasis on school accountability and the simultaneous dwindling of resources at the federal, state, and local levels, SBHCs face increasing pressures from school administrators and funders to document their impact on student academic achievement. This article reviews the methods, findings, and limitations of studies that have examined the relationship between SBHCs and academic performance. It also describes methodological challenges of conducting and interpreting such research, and discusses factors and intermediate variables that influence student academic performance. Recommendations are offered for SBHC researchers, evaluators, and service providers in response to the pressure they are facing to document the effect of SBHC services on academic outcomes. (J Sch Health. 2004;74(9):347,352) [source] Methodological challenges when monitoring the diet of pregnant women in a large study: experiences from the Norwegian Mother and Child Cohort Study (MoBa)MATERNAL & CHILD NUTRITION, Issue 1 2008Helle Margrete Meltzer Abstract The aim of this article is to describe the main methodological challenges in the monitoring of dietary intake in the Norwegian Mother and Child Cohort Study (MoBa), a pregnancy cohort aiming to include 100 000 participants. The overall challenge was to record dietary patterns in sufficient detail to support future testing of a broad range of hypotheses, while at the same time limiting the burden on the participants. The main questions to be answered were: which dietary method to choose, when in pregnancy to ask, which time period should the questions cover, which diet questions to include, how to perform a validation study, and how to handle uncertainties in the reporting. Our decisions were as follows: using a semi-quantitative food frequency questionnaire (FFQ) (in use from 1 March 2002), letting the participants answer in mid-pregnancy, and asking the mother what she has eaten since she became pregnant. The questions make it possible to estimate intake of food supplements, antioxidants and environmental contaminants in the future. Misreporting is handled by consistency checks. Reports with a calculated daily energy intake of <4.5 and >20 MJ day,1 are excluded, about 1% in each end of the scale. A validation study confirmed that the included intakes are realistic. The outcome of our methodological choices indicates that our FFQ strikes a reasonable balance between conflicting methodological and scientific interests, and that our approach therefore may be of use to others planning to monitor diet in pregnancy cohorts. [source] Contractile properties of human motor units in health, aging, and diseaseMUSCLE AND NERVE, Issue 9 2001FRCPC, K. Ming Chan MD Abstract The primary function of skeletal muscle is to produce force for postural control and movement. Although the contractile properties of the whole muscle are useful functional indicators, they do not accurately reflect the heterogeneity of the constituent motor units (MUs) and their changes in health and disease. However, data on the contractile properties of human MUs, in comparison to other animal species, are relatively sparse. This, in part, is due to greater methodological challenges of in vivo studies of MUs in the human. The purpose of this review is to critically appraise the methods used in humans; to describe the normative data from different muscle groups; to discuss differences between data from healthy humans and other animal species; and, last, to characterize changes of the MU contractile properties in aging, disease, and in response to intervention. Because the spike-triggered averaging technique can only be used to study the twitch properties, other methods were subsequently developed to measure a wider range of contractile properties. Although there is general agreement between human data and those from other animal species, major differences do exist. Potential reasons for these discrepancies include true biological differences, but differences in the techniques used may also be responsible. Although limited, measurement of MU contractile properties in humans has provided insight into the changes associated with aging and motoneuronal diseases and provides a means of gauging their adaptive capacity for training and immobilization. © 2001 John Wiley & Sons, Inc. Muscle Nerve 24: 1113,1133 [source] Methodology for biomechanical testing of fresh anterior wall vaginal samples from postmenopausal women undergoing cystocele repair,NEUROUROLOGY AND URODYNAMICS, Issue 4 2009Philippe E. Zimmern Abstract Goal To explore the methodological challenges of biomechanical testing of freshly harvested human anterior vaginal wall (HAVW) samples. Method Longitudinal full-thickness samples of HAVW were excised during cystocele repair in postmenopausal women and age-matched controls. Two methods of tissue storage during transport were compared. All samples were prepared for uniaxial testing within 2 hr of harvest and loaded at a rate of 0.5 mm/sec, until irreversible deformation was observed. Young's modulus and other parameters were extracted from the tensile stress,strain curves. Results Samples were obtained over 2 years from 42 patients. Significant differences in biomechanical parameters were noted based on the degree of hydration of the tissue, suggesting that the wetter samples were mechanically weaker. Conclusions This study reports on a new method for testing the biomechanical properties of freshly harvested HAVW tissues and the impact of tissue hydration during transport between the operating room and the testing lab. Neurourol. Urodynam. 28:325,329, 2009. © 2009 Wiley-Liss, Inc. [source] Assessing the contribution of working conditions to socioeconomic disparities in health: A commentaryAMERICAN JOURNAL OF INDUSTRIAL MEDICINE, Issue 2 2010Paul A. Landsbergis PhD Abstract Introduction Occupational health researchers can play a pivotal role in increasing our understanding of the role of physical and psychosocial working conditions in producing socioeconomic health disparities and trends of increasing socioeconomic health disparities, contributing to interventions to reduce such disparities, and helping to improve public education materials on this subject. However, a number of methodological challenges in this field need to be considered. Methods Commentary, including a review of selected studies. Results/Conclusion Research needs to be guided by models of the associations between social (socioeconomic position (SEP), race/ethnicity, immigration status, and gender) and occupational variables and health, to avoid inappropriate control for confounding, and to specify causal pathways (mediation) and interaction effects. Different approaches to the theory and measurement of SEP also need to be tested. Am. J. Ind. Med. 53:95,103 2010. © 2009 Wiley-Liss, Inc. [source] Religion, spirituality and cancer: Current status and methodological challengesPSYCHO-ONCOLOGY, Issue 6 2005Michael Stefanek The role of religion and spirituality in health has received increasing attention in the scientific and lay literature. While the scientific attention to this issue has expanded, there continue to be methodological and measurement concerns that often prevent firm conclusions about health and adjustment benefits. Limited attention has been provided to the role of spirituality and religion in cancer. This is true when both disease outcome and adjustment are considered. A recent ,levels of evidence' review examining the link between physical health and religion or spirituality found little overall support for the hypotheses that religion or spirituality impact cancer progression or mortality. Studies examining their impact on quality of life and adjustment are decidedly mixed. In sum, research specifically focusing on the role of religion or spirituality on cancer outcomes has been surprisingly sparse. Such research presents a number of methodological and measurement challenges. Due to these unmet challenges in the literature to date, it is premature to determine what role religion and spirituality play in disease, adjustment, or quality of life outcomes in cancer. A number of suggestions are made for continued research in this area. Copyright © 2004 John Wiley & Sons, Ltd. [source] THE IMPACT OF PUBLIC MANAGEMENT REFORMS ON STUDENT PERFORMANCE IN DANISH SCHOOLSPUBLIC ADMINISTRATION, Issue 2 2008SIMON CALMAR ANDERSEN Many resources have been invested in reforming the public sectors of most countries in the world during the last 20 years. Greater focus on evaluation and performance is one of the most central aspects of these reforms, but despite much academic research virtually no systematic evaluations of the outcome of the reforms themselves are found. This paper presents a study of the effect of performance management reforms of Danish public schools on the achievements of more than 80,000 lower secondary students. The study finds no or very small effects on performance measured as average exam scores, but highly significant effects on inequity in the sense that students with low socioeconomic status perform worse at reforming schools than at similar non-reforming schools. These results, as well as the methodological challenges involved in estimating reform impact, emphasize the need for more empirical scrutiny of what effects the reforms have. [source] A 15N-aided artificial atmosphere gas flow technique for online determination of soil N2 release using the zeolite Köstrolith SX6®RAPID COMMUNICATIONS IN MASS SPECTROMETRY, Issue 22 2006Oliver Spott N2 is one of the major gaseous nitrogen compounds released by soils due to N-transformation processes. Since it is also the major constituent of the earth's atmosphere (78.08% vol.), the determination of soil N2 release is still one of the main methodological challenges with respect to a complete evaluation of the gaseous N-loss of soils. Commonly used approaches are based either on a C2H2 inhibition technique, an artificial atmosphere or a 15N-tracer technique, and are designed either as closed systems (non-steady state) or gas flow systems (steady state). The intention of this work has been to upgrade the current gas flow technique using an artificial atmosphere for a 15N-aided determination of the soil N2 release simultaneously with N2O. A 15N-aided artificial atmosphere gas flow approach has been developed, which allows a simultaneous online determination of N2 as well as N2O fluxes from an open soil system (steady state). Fluxes of both gases can be determined continuously over long incubation periods and with high sampling frequency. The N2 selective molecular sieve Köstrolith SX6® was tested successfully for the first time for dinitrogen collection. The presented paper mainly focuses on N2 flux determination. For validation purposes soil aggregates of a Haplic Phaeozem were incubated under aerobic (21 and 6 vol.% O2) and anaerobic conditions. Significant amounts of N2 were released only during anaerobic incubation (0.4 and 640.2,pmol N2 h,1,g,1 dry soil). However, some N2 formation also occurred during aerobic incubation. It was also found that, during ongoing denitrification, introduced [NO3], will be more strongly delivered to microorganisms than the original soil [NO3],. Copyright © 2006 John Wiley & Sons, Ltd. [source] Suzanne MacKenzie Memorial LectureConceptually unclad: feminist geography and Aboriginal peoples,THE CANADIAN GEOGRAPHER/LE GEOGRAPHE CANADIEN, Issue 3 2004Evelyn J. Peters This paper argues that feminist geography can provide some useful lessons in an attempt to increase Aboriginal peoples' representation in geography. It asks the question: How can we use the example of feminist geography to think about a geography that is more inclusive of Aboriginal people? The paper focuses on the issues of content in teaching, drawing on examples from urban and social geography, and on methodological challenges, especially the issue of reflexivity. Feminist geographer Suzanne Mackenzie argued that an emerging feminist geography left the discipline ,conceptually unclad', challenging scholars to consider new theoretical frameworks and new perspectives. I argue that emphasising the geographies of Aboriginal people also enriches geography, including feminist geography. Cet article témoigne en faveur de la géographie féministe qui peut nous donner quelques leçons utiles pour augmenter la représentation du peuple aborigène en géographie. L'article pose la question suivante: comment peut-on utiliser l'exemple de la géographie féministe pour penser à une géographie qui est plus inclusive du peuple aborigène? Cet article insiste sur les questions du contenu d'enseignement, tirant les exemples de la géographie urbaine et sociale, et des défis de méthodologie, particulièrement au sujet de la réflexivité. La géographe féministe, Suzanne Mackenzie, a disputé qu'une géographie féministe émergeante était partie du discipline d'un façon «conceptuellement nu», qui invitent aux érudits à considérer des nouveaux plans de théorie et des nouvelles perspectives. Je dispute que l'emphasis sur les géographies du peuple aborigène peut aussi enrichir la géographie, y compris la géographie féministe. [source] Opportunities and Challenges for Studying Disaster SurvivorsANALYSES OF SOCIAL ISSUES & PUBLIC POLICY, Issue 1 2006Jennifer M. Knack Studying survivors of natural disasters and traumatic events provides a unique opportunity to address some of the important and difficult questions in psychology and other social sciences. However, such an opportunity does not come without challenges. Several methodological challenges to studying survivors of natural disasters are discussed, including recruiting participants, choosing appropriate procedures, and the safety of data collectors. Several ethical issues are also presented, such as the ability of participants to make decisions, the impact of participating, and the importance of informed consent. In addition, approaches are suggested that help to deal with these methodological and ethical challenges. We conclude that while attention must be focused on methodological and ethical considerations, research stemming from natural disasters should be employed to answer important basic and applied conceptual questions and address issues of practice and policy, while assuring that steps have been taken to protect participants and that the potential risks are minimal. [source] Opening up the secret city of Stepnogorsk: biological weapons in the Former Soviet UnionAREA, Issue 1 2010Caitríona McLeish For almost 30 years, the Soviet government hid a large part of its biological weapons programme behind the façade of a network of civilian bio-technology facilities, called the All-Union Production Association Biopreparat, which were established to overcome deficiencies in molecular biology and genetics research. This paper, which is developed from a presentation given during an ESRC-sponsored seminar series, ,Locating Technoscience: The Geographies of Science, Technology and Politics', details the secret geography of one of those Biopreparat facilities located in Stepnogorsk, Kazakhstan. In doing this the paper illustrates how secret geographies can operate simultaneously, and at multiple scales. In the case of the Soviet bio-weapons programme, enacting secrecy at these multiple scales was made possible by the purposeful exploitation of ,dual use' technologies. By recounting a trip made to the Kazak facility, and using personal communications with UK and US experts involved with uncovering the Soviet bio-warfare programme, the author addresses some of the methodological challenges involved with researching secret geographies. This case study therefore looks in several directions , to work on the geographies of scale, research on the geographies of knowledge and work on secrecy in science and technology studies. [source] | ||||||||||||||||||||||