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61.
To meet the requirements of the National Environmental Policy Act of 1969, the U.S.D.A. Forest Service has changed the way forest plans are developed. The focus of this paper is to address the group-decision problem using social choice theory, specifically the voting models of Condorcet and Borda. The elements of a social choice problem are voters, alternatives, preferences, and aggregation. A case study from the Shoshone National Forest is used to demonstrate the use of the voting models from social choice theory. The solutions derived from the analysis are strategy and coalitional strategy proof implying that behaviors intended to influence the outcome, such as vote trading, would be unsuccessful.  相似文献   
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Changes in a typology of family structures incorporating household size and female labor force participation are decomposed using the 1969–78 years of the Panel Study of Income Dynamics. Among other things, racial, cohort, and educational differences result in: (1) a decline in large families regardless of mother's work status, due principally to racial effects; (2) a slight rise in the labor force entry of women from older cohorts; and (3) a substantial rise in the number of non-working mothers in small families, mainly from the younger cohorts. The discussion focuses on the advantages and implications of the use of the family rather than the individual as the unit of analysis in this type of research.  相似文献   
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Following signal detection theory, the gazing of a videotaped confederate was judged by 12 subjects under four combinations of distance from the monitor and picture brightness. Separate measures of discriminability and judgment criterion, or bias, were derived. Eye gaze discriminability declined with both distance and brightness. Overestimation of the amount of eye gaze increased with distance and declining brightness, supporting Stephenson and Rutter's hypothesis that increased difficulty in discrimination will produce such a guessing bias.Thanks to Maureen Mc Carry for serving as the gazer. This project was partially supported by the Boystown Center for the Study of Youth Development at Catholic University.  相似文献   
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ABSTRACT

Five academic libraries in Ontario (Canada) are collaborating in a shared last print copy repository project. The project, called Keep@Downsview, aims to consolidate and rationalize low-use print materials held by the partner libraries and ensure long-term preservation of these important scholarly materials in Ontario while still providing access via document delivery and ILL. In doing so, each of the partner institutions demonstrates its commitment to the stewardship of print collections for future generations while repurposing valuable space on campus. This article describes the background, rationale, challenges, and lessons learned for this unique Canadian project--which leveraged funding from the province of Ontario and the University of Toronto's high-density preservation facility at Downsview--and the commitment of all partners to preserve the scholarly record in Ontario.  相似文献   
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This paper reports on a study of over 200 young people going missing from residential and foster care in four local authorities. The proportion of young people missing from residential care was high, ranging from 25 to 71% of all 11 – 16‐year‐olds in mainstream children’s homes. Two types of absence were identified: the ‘runaways’ profile (those who ran away or stayed out) and the ‘friends’ profile (those missing to be with friends). There were variations in levels of risk for different sub‐groups within the sample. Risks included immediate risks of victimization, sexual exploitation (including prostitution), offending and substance misuse. A longer‐term risk of detachment was identified among those going missing often, involving high levels of non‐school attendance, detachment from carers and involvement in offending and in substance misuse. Difficulties in the assessment of risk are discussed and approaches to managing risk for young people who go missing from substitute care are explored. Copyright 1999 John Wiley & Sons, Ltd.  相似文献   
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There is a growing trend in social work to produce social work students who demonstrate empathy. Empathy levels in social work students are not well-researched, especially in comparison with students in other helping professions. This cross-sectional study explored the relationship between empathy, self-esteem, and work engagement in 472 undergraduate and graduate students in the helping professions. Comparisons between BSW, MSW, and nursing students found overall high levels of affective empathy. Graduate MSW and nursing students scored higher than BSW students on most empathy constructs, self-esteem, work engagement, and had more work and volunteer experiences. A hierarchical multiple regression model was used to assess predictors of comprehensive empathy. Significant predictors of comprehensive empathy, as measured by the Empathy Assessment Index, included volunteer experience, work engagement, and affective empathy. Demographic variables such as age, gender, ethnicity, and years of work were non-significant predictors. Different constructs of empathy emerged, and implications of how empathy is relevant to social work practice are discussed with recommendations for social work education.  相似文献   
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