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81.
A. Myrick Freeman III 《Journal of Risk and Uncertainty》1991,4(2):153-165
Theoretical models for estimating individuals' values for sure improvements in environmental quality are well developed. These models can be classified as being based on averting behavior, hedonic prices, or weak complementarity. Some of these models have also been applied to the task of valuing changes in risk based on expected utility theory. This article provides a systematic development of these models for changes in either the probability or the magnitude of an uncertain event and shows that the derived expressions for individual marginal willingness to pay can be generalized to nonexpected utility preferences as long as the index of preferences is continuous, convex, and twice differentiable. 相似文献
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Objectives. Using data from the National Longitudinal Study of Adolescent Health (Add Health), we investigate whether Asian and Latino youth value racial boundaries more than ethnic boundaries. We evaluate the relative preferences of same‐ethnic, same‐race (but different‐ethnic), and different‐race friends. Methods. We use multilevel multinomial logistic regression models to examine the odds of choosing same‐ethnic, different‐ethnic (but same‐race), and different‐race friends net of the opportunity to interact. Results. We find strong effects of school racial and ethnic composition, immigrant status, and parental education on the likelihood of crossing boundaries in the selection of friends. In addition, we develop a new scale of panethnicity and find substantial ethnic group variation in panethnic sentiment. Conclusion. We find an overwhelming preference for same‐ethnic peers over same‐race (different‐ethnic) and different‐race peers. 相似文献
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AbstractThis article reports on an attempt to use photo-elicitation to explore contested intergenerational perceptions and experiences of ‘place’ in one English village. Participants actively disrupted the photo-elicitation project and ended up co-creating an enriched research design that allowed them to represent how they experienced ‘place’. The spontaneous, mixed media-elicitation that resulted overturns some of the more straightforward notions that are aligned with photo-elicitation techniques. This article builds on a growing body of critical literature on photo-elicitation and shows how participants’ disruption of a project’s research methods can be both challenging and fruitful in practice. The researcher’s flexibility and willingness to work with participants’ alternative approaches proved extremely effective in allowing participants to communicate their ‘imagined geographies’ and to identify experiences of social inequality. This article explores how the initially problematic in participant involvement can be turned into the productive through the use of ‘improvised methodologies’. 相似文献
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Mindfulness and empathy are protective factors for social workers and may also improve client outcomes. They may be especially important when dealing with clients experiencing grief and death-related challenges. This study replicated a previous study assessing empathy and mindfulness in social work students before and after an experiential death education course with a focus on traumatic grief. The Empathy Assessment Index and the Five Facet Mindfulness Questionnaire were used to measure changes in empathy and mindfulness in 111 primarily MSW-level social work students after the completion of the course. Results showed statistically significant improvements in overall empathy, on three of five empathy subscales, and on four of five mindfulness facets. A qualitative analysis of responses to an open-ended question asking about ways in which the course was meaningful to students found themes of increased awareness, a deepened sense of connection, and preparation for clinical practice. 相似文献
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Researchers have established that minority groups tend to suffer worse health outcomes compared to their white counterparts, though the specific mechanisms at play are still under investigation. The passing of Arizona's 2010 “Support Our Law Enforcement and Safe Neighborhoods Act,” commonly referred to as “S.B. 1070,” provides a unique opportunity to examine the effects of an increasingly racially charged milieu on Latino health. Using the Arizona sample of the 2009–2011 Behavioral Risk Factor Surveillance System, we find that the changing social setting around S.B. 1070 is related to poorer Latino self-reported health, but only for those whose primary language is Spanish. Furthermore, serving as control groups, we find no such relationship in other U.S.-Mexico border states that had no analogous legislation (Texas, New Mexico, and California). We expand on stress process theory and group position theory to explain this increase in Arizona's negative health reporting, despite traditional social and economic protective factors. 相似文献
86.
Edward Godfrey Ochieng Andrew David Freeman Price Tarila Zuofa Charles Egbu Ximing Ruan 《生产规划与管理》2016,27(4):237-248
This study sought to examine project delivery challenges currently being faced by energy clients and to determine how they could achieve value creation through better alignment of project delivery processes. There are important lessons to be learned from the energy sector on how to deal with the unique operational and project challenges. Four exploratory focus groups were held with twenty senior project management practitioners, to better understand the greatest needs and project management processes in the energy sector. A formal deductive approach was used to examine and evaluate existing and future energy project delivery processes. From the qualitative data, participants recognised the need to introduce science-based project techniques such as system dynamics and project predictive analytics in project management processes. Participants further noted that comprehensive innovative project delivery processes and analytical approaches are required to cope with the increasing scale and complexity of energy capital projects. 相似文献
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In May 2013, GlaxoSmithKline (980 Great West Road, Brentford, Middlesex, TW8 9GS, UK) established a new online system to enable scientific researchers to request access to anonymised patient level clinical trial data. Providing access to individual patient data collected in clinical trials enables conduct of further research that may help advance medical science or improve patient care. In turn, this helps ensure that the data provided by research participants are used to maximum effect in the creation of new knowledge and understanding. However, when providing access to individual patient data, maintaining the privacy and confidentiality of research participants is critical. This article describes the approach we have taken to prepare data for sharing with other researchers in a way that minimises risk with respect to the privacy and confidentiality of research participants, ensures compliance with current data privacy legal requirements and yet retains utility of the anonymised datasets for research purposes. We recognise that there are different possible approaches and that broad consensus is needed. Copyright © 2014 John Wiley & Sons, Ltd. 相似文献
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