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291.
The present study investigated sexual at-risk behaviors of sexually abused adolescent girls. Variables of interest were presence of consensual sexual activity, age at first consensual intercourse, number of sexual partners, condom use, and pregnancies. Participants were 125 sexually abused adolescent girls aged 12 to 17 years. Results showed that severity of sexual abuse (e.g., penetration, multiple perpetrators, physical coercion, multiple incidents of abuse) was related to a greater number of sexual at-risk behaviors. For instance, adolescents with a history of sexual abuse involving penetration were 13 times as likely to have been pregnant. Although family characteristics were significantly associated with being sexually active, their effect proved non-significant in the final hierarchical regression. Regression analyses clearly showed that the likelihood of engaging in sexual at-risk behaviors increased as a function of the number of severity factors. 相似文献
292.
In this paper, we consider a class of mean preserving increases in risk such that all risk-averse decision makers respond to an increase in risk by reducing the level of their risky activities. The type of increase in risk that we consider is based on the notion of tail dominance which generalizes other cases previously discussed in the literature.L. Eeckhoudt is Professor of Economics at the Catholic Faculties of Mons (Belgium) and Lille (France). P. Hansen is Professor of Operations Research at Ecole des Hautes Etudes Commerciales, Montréal. Both authors have benefited from comments by P. Caperaa, G. Dionne, J. Meyer and H. Varian. They also thank A. Coopman who carefully reviewed and improved the English style. 相似文献
293.
294.
Pierre Salam H l ne Otzenberger Jean Ehrhart G rard Dewasmes Alain Nicolas Patricia Tassi Jean-Pierre Libert Alain Muzet 《Work and stress》1995,9(4):528-539
This study investigated the effects of a 1-h nap on subsequent performance in spatial memory (SM) and logical reasoning (LR) tasks. The objective was to evaluate the duration of the effects of sleep inertia (SI). The performance was measured in two independent groups of subjects. The 1-h nap took place at 00:00 h in group 1 and at 03:00 h in group 2. In each task, the experimental design comprised one no-nap condition in which subjects had no sleep before the night tests, and a nap condition that comprised the 1-h nap followed by the test sessions. To measure the duration of SI effects, the subjects were tested in two 30-min sessions and the data in each session were analysed in sub-units of time of 3 min each. In each task the results showed no effects on accuracy, and no circadian effects of napping were found. In each task, analyses of pooled data of the two groups showed that the performance in the 1-h nap condition exhibited significant reductions of speed immediately following awakening, when compared with no-nap, reflecting SI effects. In SM, the slowing lasted 24 min, and 27 min in LR. Practical implications of the results are discussed. 相似文献
295.
William B. Bankston Roberta Loupe St. Pierre H. David Allen 《Sociological spectrum》2013,33(3):197-211
This paper examines the relative influence of Southern culture versus social structural features on primary (dispute motivated) and nonprimary (crime motivated) homicide rates in Louisiana. Multiple regression analysis is used to compare the determinants of homicide in parishes ("counties") with typical Southern cultural heritage with those of parishes with French‐Catholic heritage. It was found that Southern culture exerted a greater positive influence on primary homicide rates than most structural variables, but was negative with respect to nonprimary rates. Implications for clarifying the debate concerning the existence of a Southern subculture of violence are discussed. 相似文献
296.
Maternal support offered to sexually abused children following disclosure may be a crucial factor in children's recovery. A person-centered approach was used to examine how profiles of nonoffending mothers could better describe their ability to support their children after disclosure. Cluster analyses based on a total of 226 nonoffending mothers recruited from child protective services yielded four distinctive groups of mothers: resilient, avoidant-coping, traumatized, and anger-oriented reaction. These profiles differed on measures of support, parenting, and variables related to attitude following disclosure. The discussion underscores the relevance of adopting a tailored approach to intervention with mothers of sexually abused children. 相似文献
297.
Jemima Pierre 《Identities: Global Studies in Culture and Power》2013,20(2):141-170
This article argues that social science representations of post-1965 Black immigrants in the United States employ the concept of "ethnicity" in ways that reinforce the racialist myth of Black (American) cultural inferiority. Specifically, the discursive use of Black immigrant "ethnic" and "cultural distinctiveness," while admittedly reflecting an important recognition of the heterogeneity of the United States Black populations, is in fact predicated upon a repackaged "culture of poverty" discourse that serves to reaffirm the overarching racial order. In a discussion of the theoretical and historical development of the concept, I show how the current discourse of "ethnic distinctiveness" perpetuates a form of racism under a theory that denies the relevance of race while it continuously recodes the biological notions of race as "culture." Thus, Black immigrant distinctiveness, when presented through the prism of the cultural narratives of ethnicity, allows for the perpetuation of a "cultural racism" that adversely affects all Blacks in this country. I therefore call for a rejection of ethnicity theory as it is currently conceptualized and suggest the need to ground theories of Black distinctiveness within analyses of power relations and ongoing practices of racial subjugation. 相似文献
298.
Pierre Guillet de Monthoux 《Culture and Organization》2013,19(1):147-160
Recent Anglo-Saxon writings on management regard “vision” as being of strategic importance to leadership. Whilst such an approach has led to socio-psychological inquiries into “visionary leadership” the equally relevant phenomenological “philosophy of the eye” has remained unexplored by organizational scholars. This European philosophical tradition is closely connected to theories of art. In three cases, it will be shown how continental reflection on the strategic management of warfare has taken the eye seriously and thereby gained insights from aesthetics. It will be argued that the understanding of civilian strategic management also might benefit from such s connection between Strategy and Art. 相似文献
299.
In this paper, we examine the optimal pay-as-you-go social security scheme which reallocates resources across generations
in a changing environment, that is, with fluctuations in population growth rates and in productivity levels. We use an overlapping
generations model along with a social welfare function consisting of the sum of generational utilities either unweighted or
weighted by population size and a discount factor. We show how intergenerational resource sharing can be used to improve social
welfare even though the extent of intergenerational redistribution is hampered by payroll tax deadweight losses in the spirit
of the optimal taxation literature. Also it appears that resource sharing is much more restricted in a closed economy that
in an open economy, which is not subject to a national resource constraint at each period of time.
This paper was presented at the 1990 ISPE-Conference on the Fiscal Implications of an Ageing Population, Vaalsbroek Castle,
Netherlands. The authors wish to thank the participants and particularly B. van Praag and W. Peters for their comments. They
also thank the two referees and Philippe Michel for very helpful comments and discussions. The financial support of CIM during
his sabbatical year is greatly acknowledged by the second author. 相似文献
300.
John Akin Richard Bilsborrow David Guilkey Barry M. Popkin Daniel Benoit Pierre Cantrelle Michele Garenne Pierre Levi 《Demography》1981,18(3):287-307
Breast-feeding is the focus of rapidly growing interest. Research on the determinants of breast-feeding is only beginning. The research in this paper is based on World Fertility Survey data for Sri Lanka. We develop what we believe to be an appropriate probit model and find that there are significant socioeconomic factors that influence breast-feeding, in addition to the demographic factors focused upon in the literature. Moreover, some of them have clear policy implications, which are elaborated herein with respect to labor force, education, family planning and internal migration policies. In the course of the paper we also address a number of generally neglected statistical issues that should be considered in analyzing the determinants of breastfeeding, including problems resulting from digit preference or age heaping, the need to use dichotomous dependent variables, unavoidable truncation biases in the basic data, and structural shifts in the determinants of breastfeeding at different durations. 相似文献