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271.
Marc Luy 《Population and development review》2003,29(4):647-676
The degree to which biological factors contribute to the existence and the widening of mortality differences by sex remains unclear. To address this question, a mortality analysis for the years 1890 to 1995 was performed comparing mortality data on more than 11,000 Catholic nuns and monks in Bavarian communities living in very nearly identical behavioral and environmental conditions with life table data for the general German population. While the mortality differences between women and men in the general German population increased considerably after World War II, they remained almost constant among the members of Bavarian religious orders during the entire observation period, with slight advantages for nuns. Thus, the higher differences observable in the general population cannot be attributed to biological factors. The different trends in sex‐specific mortality between the general and the cloistered populations are caused exclusively by men in the general population who were unable to follow the trend in mortality reduction of women, nuns, and especially monks. Under the special environmental conditions of nuns and monks, biological factors appear to confer a maximum survival advantage for women of no more than one year in remaining life expectancy at young adult ages. 相似文献
272.
This study examined the relationship between drug preference, drug use, drug availability, and personality among individuals (n = 100) in treatment for substance abuse in an effort to replicate the results of an earlier study (Feldman, Kumar, Angelini, Pekala, & Porter, 2007) designed to test prediction derived from Eysenck's (1957, 1967) theories. Drug preference was measured by the method of paired-comparison and personality was measured with the Zuckerman-Kuhlman Personality Questionnaire-50 CC. Contrary to expectations, high compared with low scorers on Sociability and Impulsive-Sensation Seeking preferred depressants. Surprisingly, low compared with high scorers on neuroticism did not differ in preference for alcohol. As in the previous study, drug preference, use, and availability were highly correlated, although ease of availability was slightly more predictive of drug use than drug preference. Clinical and theoretical implications are discussed. 相似文献
273.
Scholars have been slow to test welfare state theories on the extensive subnational variation in the United States during the recent period of retrenchment. We assess institutional politics theories, literature on race and social policy, and public opinion arguments relative to levels of support in states' Aid to Families Dependent Children programs from 1982 until its elimination in 1996. Pooled time-series results demonstrate that the determinants of spending during retrenchment are mostly similar to those driving development and expansion. Pro-spending actors and professionalized state institutions limit benefit curtailment, while jurisdictions with larger African- American populations have lower benefits. Additionally, liberal citizens positively impact support and strengthen the effects of state institutions, but this effect is attenuated in states with larger African-American populations. 相似文献
274.
Sheretta T. Butler-Barnes Tabbye M. Chavous Marc A. Zimmerman 《Race and social problems》2011,3(2):75-91
This study conceptualized individual-level cultural-ecological factors (racial identity and religious coping) as adolescent
assets that would promote achievement motivation and reduce negative associations between community violence exposure and
motivation. Our examination of African American adolescents (N = 380) from urban contexts indicated a negative association between community violence exposure and motivation beliefs (academic
self-efficacy and academic importance). Accounting for socioeconomic factors and parental support, higher racial pride (private
regard), and higher use of religion to cope with difficult times predicted higher motivation beliefs. Religious coping reduced
the negative association of violence exposure with motivation beliefs. Among boys, however, there was a stronger, negative
relationship between community violence and academic self-efficacy for those higher in private regard. Boys reporting higher
private regard had more positive motivation beliefs when experiencing lower community violence. Results suggest cultural-ecological
factors can support academic motivation but also may not fully protect youth exposed to high ecological risk. 相似文献
275.
The use of costless inspection in enforcement 总被引:1,自引:0,他引:1
D. Marc Kilgour 《Theory and Decision》1994,36(3):207-232
The process whereby a reluctant decisionmaker may be induced to behave in accordance with a rule, regulation, or law, is examined in a general context. It is assumed that an enforcement agency can make use of a costless inspection process, which would provide a free, but possibly inaccurate, assessment of the subject's behavior. The agency also has some power of punishment. When should evidence be collected by the agency, and how should it be used? How can an enforcement system be structured so as to maximize the level of compliance? How does compliance depend on the subject's private gain for violation, the level of punishment, the risk of errors (of both kinds) in the inspection report, and other parameters? These questions and others are addressed using non-cooperative game models. Answers give new insights into real-world enforcement problems in areas as diverse as environmental regulation and arms control. 相似文献
276.
How might revolutions and other processes of institutional disintegration inform political processes preceding them? By mapping paths of agency through processes of institutional disintegration, the trajectory improvisation model of institutional breakdown overcomes "action-structure" binaries by framing political revolutions as possible outcomes of such disintegrative processes. The trajectory improvisation approach expands the trajectory adjustment model of social change developed by Gil Eyal, Iván Szelényi, and Eleanor Townsley. An overview of political revolution in Soviet Russia between 1989 and 1991 illustrates trajectory improvisation. The recent American invasion and occupation of Iraq shows alternative routes to institutional disintegration, indicating the independence of models of institutional breakdown from those of social movements. These cases illustrate both the diversity of situations the trajectory improvisation model speaks to, and the limitation of models of trajectory adjustment, improvisation, social movements, and invasions, illustrating why such models at best enable what are called "explanatory narratives" of actual historical processes. 相似文献
277.
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279.
With this installment of “They Might Be Giants,” Michael Brown talks with Ben Brown (no relation) about publishing books (ten so far!) and magazines (issue 3 of Words! Words! Words! is about to be released), while at the same time working nine-to-five at a really boring tech job. It's a do-it-yourselfer's dream come true. Serials Review 2002; 28:344–348. 相似文献
280.
The article proposes a simulation-based inferential method for simultaneous processes defined on a regular lattice. The focus is on spatio-temporal processes with a simultaneous component, that is such that contemporaneous spatial neighbors are potential explanatory variables in the model. The new method has the advantage of being simpler to implement than maximum likelihood and allows us to propose a robust estimator. We give asymptotic properties, present a Monte Carlo study and an illustrative example. 相似文献