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Through an Access to Information Act request, we have obtained the consent forms used by the providers of every human embryonic stem cell (hESC) line approved for use by the Canadian Institutes of Health Research (CIHR), and examined them to verify whether or not they meet the consent requirements established by Canadian law and regulations. Our findings show that at least seven out of ten consent forms studied did not satisfy these minimum requirements. We then outline various options for responding to this situation in terms of: (i) remedial measures for dealing with executive problems with regulatory oversight procedures; and (ii) remedial measures for dealing with the impugned lines.  相似文献   
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Objectives. Many cities in the United States have undergone or are undergoing racial transition from a majority white to a majority black population. Accompanying this is a change in the racial makeup of elections and officeholders. This article seeks to explain racial patterns in voter roll‐off as a city undergoes racial transition. Methods. Using a fixed‐effects regression model, we analyze the level of voter roll‐off (from the top‐of‐the‐ballot mayoral contest) among black and white voters across Memphis City Council elections, from 1967 through 2003. Results. The level of voter roll‐off among racial groups is sensitive to the racial aspect of political change. Black voters are most likely to continue to vote in council contests when there is a racial choice among candidates, when blacks have previously been elected, and when blacks occupy the mayoralty and a majority of council seats. Whites are most likely to vote in racially competitive council contests, as well as when there are a large number of white candidates, and when whites hold a majority of the council seats. Conclusions. In settings such as Memphis, where race has played a pronounced historic role, the racial context of political empowerment has a strong influence on electoral participation. Elections below the top‐of‐the‐ballot become more salient, and political efficacy grows among racial group members when that cohort occupies institutional positions, particularly the majority of positions in a governing institution.  相似文献   
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Editors' introduction: Thomas F. Pettigrew was born and raised in tightlysegregated Richmond, Virginia in 1931. But his Scottish-immigrant family did not subscribe to the South's racist norms, and he identified with and had early positive contact with African Americans. As an undergraduate at the University of Virginia, he discovered that there was a discipline that studied and resisted racism. These formative experiences forged his career path in social psychology to study intergroup relations. As a student of Allport's, Pettigrew is widely recognized as having expanded personality-oriented perspectives on prejudice to include a more social, contextualized orientation ( Kimmel, 1986 ). In that same vein, he focuses his commentary on incorporating multiple levels of analysis as we integrate theory, research and practice on intergroup relations. He emphasizes the importance of macro-level—institutional and societal—contextualization of social psychological work. Pettigrew thoughtfully considers each article in the issue and contends that multiple level analyses, and incorporating the macro-level, are critical for theoretical and empirical progress as well as maximizing effectiveness of interventions .  相似文献   
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Objective. This study used the differential‐outcomes hypothesis as a theoretical guide to examine the association of Guam's same‐sex‐ and both‐sex‐oriented Asian‐Pacific Islander adolescents and their participation in defensive aggression. Methods. Using ordinary least squares multiple regression analysis we tested the hypothesis with a probability sample of Guam's Asian‐Pacific high school students. Results. The results of the study demonstrated that same‐sex‐oriented males were less likely to participate in physical aggression and that same‐sex‐oriented adolescent females were significantly more likely to report that they had participated in defensive aggression. Conclusions. Same‐sex‐oriented females are more likely than same‐sex‐oriented males to participate in defensive aggression, primarily because they may be more likely to experience threatening situations on Guam's high school campuses.  相似文献   
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The bulk of care in the community is carried out by lay carers. Recent policy initiatives to support them in the United Kingdom are outlined. There remains evidence of significant gaps in support from professional health and social‐care workers including community nurses. This paper reports three studies of lay carers: those caring for older people, carers of technology‐dependent children, and home‐care workers involved in the “direct payments” scheme. Findings are reported in the areas of decisions about appropriate caring roles, the lay–professional boundary, training and respite opportunities and the expertise of lay carers. Recommendations for policy and practices are made.  相似文献   
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In formulating empirically tractable, economywide models, researchers are often forced to employ “convenient” functional forms. These forms embody restrictive maintained hypotheses. Alternatively, flexible functional forms may be utilized in a partial equilibrium setting. Estimation and incorporation of flexible functions into computable general equilibrium models is considerably more demanding of research resources. Assuming that shortcuts will continue to be necessary for researchers attempting to respond to current policy problems, this paper compares these two alternatives. Specifically, a general equilibrium model for New York State is employed to evaluate the relative performances of flexible partial equilibrium models and their more restrictive, general equilibrium counterpart. In the particular application considered, the former approach is found to dominate the latter.  相似文献   
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