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141.
Women have had a long history of participating in terrorist activity. This history extends from the earliest modern terrorist group, from the nineteenth century Russian People’s Will to the current wave of suicide bombings carried out by the Chechen Black Widows and the Tamil Tiger’s Birds of Paradise. This article traces the history of female involvement in modern terrorism and then goes on to make a number of generalizations about this experience. Among other things, the writers point out that women have played strong leadership roles in left-wing, revolutionary bands, while these roles have been far fewer with right-wing and racist aggregations. Women have tended to be late-comers to contemporary, religiously-inspired terrorism: Muslim religious authorities first had to endorse their participation.  相似文献   
142.
The effects of maternal cigarette smoking during pregnancy on behavioral and physiological measures of arousal were examined in a sample of 50 neonates. After the effects of alcohol, caffeine, and maternal demographic variables were statistically controlled, regression analyses showed that maternal smoking during pregnancy was predictive of higher heart rates overall and during quiet and active sleep. Maternal smoking during pregnancy was also predictive of lower heart rate variability and an increased number of tremors and changes in behavioral state. These findings suggest that maternal cigarette smoking during pregnancy affects the regulation of spontaneous autonomic activity in neonates.  相似文献   
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The notion of embeddedness (Granovetter, 1985) neglects of the material dimension of economic relations. This paper contributes to the literature of market devices (Callon et al., 2007) with an exploration of the material dimensions of economic embeddedness in the case of the everyday market activities of a group of non‐professional investors in the UK. It examines the attributes of a materially embedded market through the categories of socio‐economic embeddedness specified by Uzzi (1997) and draws attention to the superficial and rhetorical nature of the face‐to‐face social relations encountered in this market. The paper seeks to invigorate the notion of embeddedness by expanding the mechanisms through which socio‐economic relations are understood to arise. The paper offers support to the literature of market devices’ assertion that a concept of materially embedded economic relations can accommodate politics, culture, and regulation, and that it offers a nuanced perspective on agency and identity in the marketplace.  相似文献   
145.
Concerns about the mental health and well‐being of children and young people have been articulated in health and education policy fields as a call for closer working between schools and providers of mental health support services. Drawing from a Scottish study, this article explores issues of access, when mental health initiatives are sited in formal educational settings. In particular, it focuses on the implications for the agency of children and young people seeking support from those services when and how they choose. The study argues that over‐reliance on teachers as the main referral route to service influences what is deemed to be a problem, who is thought to need support and how the interventions are viewed by the children and young people. Alternative approaches are discussed, which offer opportunities for children and young people to explore the available services and make their own choices about their level of engagement.  相似文献   
146.
The magnitude of racial differences in first birth timing vary greatly depending upon the data sources from which they are estimated. Vital registration data (Heuser 1976; with updates from the National Center for Health Statistics 1974–1990) show that in recent years nonwhites have higher risks of a first birth at virtually all ages compared to whites. As a result very large and historically novel differentials in childlessness are forecast using these data (see Rindfuss et al. 1988; Chen & Morgan 1991; Morgan & Chen 1992). However, retrospective fertility history data collected from the 1980, 1985 and 1990 Current Population Surveys (CPS) suggest much smaller racial differences in completed childlessness and isolate racial differences in probabilities of first births at young ages. Differences also exist between theses two series for whites prior to the mid-1960s but not afterwards. Reasons for these differing estimates are suggested and examined. We conclude that a substantial portion of the differences result from an accumulation of biases in the vital registration estimates that affect primarily estimates of first birth timing. Thus, the CPS data provide a more firm basis for racial comparisons of first birth timing.  相似文献   
147.
Let W be a normal random variable with mean μand known variance σ2. Conditions on the function f(·) are given under which there exists an unbiased estimator, f(W), of f(μ) for all real μ. In particular it is shown that f(·) must be an entire function over the complex plane. Infinite series solutions for F(·) are obtained which are shown to be valid under growth conditions of the derivatives, fk( ·), of f(·). Approximate solutions are given for the cases in which no exact solution exists. The theory is applied to nonlinear measurement-error models as a means of finding unbiased score functions when measurement error is normally distributed. Relative efficiencies comparing the proposed method to the use of conditional scores (Stefanski and Carroll, 1987) are given for the Poisson regression model with canonical link.  相似文献   
148.
Objectives. Most studies of media effects in political communication focus on news media. A smaller body of work extends theories of news media effects to fictional entertainment media. Just as news media engage in priming and agenda setting, these studies suggest that fictional media do as well. In this study, we deal with fictional media's framing of issues. No research has sought to test the effects of framing in explicitly fictional media on political opinions. We develop the outlines of a theory we call “fictional framing” and test it in an experiment. Methods. Participants in our treatment group watched the film Cider House Rules. The movie frames the issue of abortion in the case of incest in a pro‐choice way, and frames morality in terms of following one's own conscience. Results. The film influenced opinions in ways consistent with the framing of these issues. Conclusions. Since abortion opinions and moral values tend to be entrenched, we consider this a strong first test of the effects of fictional framing.  相似文献   
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