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141.
Differences in health between racial groups in the United States are significant and persistent. Many studies have documented these differences as a result of a variety of different social factors. An emerging emphasis is the impact of racism in its various forms on physical and mental health. Social stress theory conceptualizes racism as a social stresssor which can produce negative health consequences for racial minorities. This study uses binary logit and negative binomial regression models of four items from the 2004 Behavioral Risk Factor Surveillance System (BRFSS) to test social stress theory and examine the relationship between stress symptoms from perceived racism and overall health (N = 32,585). The effect of race on the experience of emotional and physical stress symptoms from racism is substantial. Furthermore, experiencing both emotional and physical stress from perceived racist treatment is an important factor in predicting the number of poor mental and physical health days, indicating that the experience of stress from perceived racism is related to overall poorer health.  相似文献   
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This article explains the political origins of an 1839 law regulating the factory employment of children in Prussia. The article has two aims. First, it seeks to explain why Prussia adopted the particular law that it did. Existing historical explanations of this particular policy change are not correct, largely because they fail to take into account the actual motivations and intentions of key reformers. Second, the article contributes to theories of the role of ideas in public policymaking. Ideas interact with institutional and political factors to serve as motivators and as resources for policy change. As motivators, they drive political action and shape the content of policy programs; as resources, they enable political actors to recruit supporters and forge alliances. I offer a theory of the relationship between ideas, motivation, and political action, and I develop a methodological framework for assessing the reliability of political actors’ expressed motivations. Further, I explain how political actors use ideas as resources by deploying three specific ideational strategies: framing, borrowing, and citing. By tracing how different understandings of the child labor problem motivated and were embodied in two competing child labor policy proposals, I show how the ideas underlying reform had significant consequences for policy outcomes.  相似文献   
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In addition to outlining criteria for the approval of human subjects research, federal regulations provide guidance regarding local institutional review board (IRB) membership. IRBs are mandated to include “at least one member whose primary concerns are in nonscientific areas” and “at least one member who is not otherwise affiliated with the institution.” Often a single individual serves both of these roles simultaneously. Although there have been calls for increased representation of lay community members on IRBs, little is known regarding their experiences or their perceptions of human subject protections and the IRB process. Using an ethnographic interview approach, this study seeks to gain a perspective from non-affiliated, non-scientist (NA/NS) IRB members about the process in which they participate. Findings suggest a need for clarification regarding whom NA/NS IRB members represent. They also suggest that NA/NS IRB members’ experiences could be improved by an increased show of respect from the IRB chair, other members, and staff; efforts to make participation more convenient for these volunteer members; and training tailored specifically to NA/NS members. Further research on this important and understudied topic is needed to determine best practice and policy recommendations.  相似文献   
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Unintended population consequences of policies stem from three sources: (1) A policy overshoots its original goal; (2) different policies conflict, so that the implementation of one policy inhibits implementation of another policy; (3) negative consequences of a policy are unforeseen, or are anticipated but judged unlikely to be severe or considered less important than the positive aims of the policy. Examples from Singapore, South Africa, Italy, the U.S., and the former Soviet Union are discussed.  相似文献   
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Mass spectrometry-based proteomics has become the tool of choice for identifying and quantifying the proteome of an organism. Though recent years have seen a tremendous improvement in instrument performance and the computational tools used, significant challenges remain, and there are many opportunities for statisticians to make important contributions. In the most widely used "bottom-up" approach to proteomics, complex mixtures of proteins are first subjected to enzymatic cleavage, the resulting peptide products are separated based on chemical or physical properties and analyzed using a mass spectrometer. The two fundamental challenges in the analysis of bottom-up MS-based proteomics are: (1) Identifying the proteins that are present in a sample, and (2) Quantifying the abundance levels of the identified proteins. Both of these challenges require knowledge of the biological and technological context that gives rise to observed data, as well as the application of sound statistical principles for estimation and inference. We present an overview of bottom-up proteomics and outline the key statistical issues that arise in protein identification and quantification.  相似文献   
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