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861.
Abstract We examine race and residential variation in the prevalence of female‐headed households with children and how household composition is associated with several key economic well‐being outcomes using data from the 2000 5% Public Use Microdata Sample of the U.S. Census. Special attention is paid to cohabiting female‐headed households with children and those that are headed by a single grandmother caring for at least one grandchild, because these are becoming more common living arrangements among female‐headed households with children. We find that in 2000: (1) cohabiting and grandmother female‐headed households with children comprised over one‐fourth of all female‐headed households with children, (2) household poverty is highest for female‐headed households with children that do not have other adult household earners, (3) earned income from other household members lifts many cohabiting and grandparental female‐headed households out of poverty, as does retirement and Social Security income for grandmother headed households, and (4) poverty is highest among racial/ethnic minorities and for female‐headed households with children in nonmetro compared to central cities and suburban areas. 相似文献
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Taylor Marilyn Warburton Diane 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2003,14(3):321-338
This paper explores the legitimacy of third sector organizations in the policy process in the United Kingdom. It draws on empirical research to examine how legitimacy is defined, both by third sector organizations and by those they target within government. The paper argues that while many third sector organizations give high priority to political forms of legitimacy—in the sense of participatory structures and accountability to members and beneficiaries—government is generally more likely to give priority to technical forms of legitimacy, e.g., the quality of research and the ability to implement policy. Nonetheless, political legitimacy is still important, first because this is the form of legitimacy that third sector organizations claim for themselves and second because, as government gives way to governance with an increase in partnerships and collaboration, the dilemmas faced by third sector organizations in achieving political legitimacy are being faced on a broader canvas. 相似文献
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One persistent problem that many small rural towns face is housing adequacy, which encompasses interior and exterior structural conditions; assessments of heating, cooling, and sanitation systems; and residence size relative to space needs. The creation and reproduction of vibrant rural communities is grounded in the capacity of citizens to solve local housing problems. We posit that towns with strong norms of mutuality, high information flows, and inclusive behaviors have a civic structure that produces the capacity to frame and resolve housing concerns. We find that perceptions of civic structure are a significant factor in explaining the variation in rural housing adequacy, net of income, age, and tenure. This implies that the social and political environment is an important influence on the quality of housing stock found in rural places. 相似文献
868.
Jialin Xu Charles Audet Charles E. DiLiberti Walter W. Hauck Timothy H Montague Alan F. Parr Diane Potvin Donald J. Schuirmann 《Pharmaceutical statistics》2016,15(1):15-27
In prior works, this group demonstrated the feasibility of valid adaptive sequential designs for crossover bioequivalence studies. In this paper, we extend the prior work to optimize adaptive sequential designs over a range of geometric mean test/reference ratios (GMRs) of 70–143% within each of two ranges of intra‐subject coefficient of variation (10–30% and 30–55%). These designs also introduce a futility decision for stopping the study after the first stage if there is sufficiently low likelihood of meeting bioequivalence criteria if the second stage were completed, as well as an upper limit on total study size. The optimized designs exhibited substantially improved performance characteristics over our previous adaptive sequential designs. Even though the optimized designs avoided undue inflation of type I error and maintained power at 80%, their average sample sizes were similar to or less than those of conventional single stage designs. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
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West B Abatemarco D Ohman-Strickland PA Zec V Russo A Milic R 《Journal of drug education》2008,38(1):55-70
As part of an international public health partnership formed in 2001 we assessed the impact of Project Northland in Croatia--an adolescent alcohol school-based prevention intervention implemented in Split--on students. The curriculum was implemented in 13 randomly selected schools with another 13 schools serving as controls. The evaluation included quantitative and qualitative methods, using pre/post-tests to compare intervention and controls and follow-up focus groups with parents and teachers. Quantitative data showed the intervention was more successful in changing attitudes in the first two years, but had less impact on older students. Qualitative data suggest benefits from the program overall. Given the intervention was successful in the earlier grades it should be initiated earlier to have a greater impact. Challenges and lessons learned are offered. 相似文献