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101.
Gregory M. Herek 《The Journal of social issues》2007,63(4):905-925
This article explores theoretical and applied questions that are relevant to social scientists' efforts to understand and confront sexual stigma. A framework is presented for conceptualizing such stigma as a cultural phenomenon with structural and individual manifestations. The latter include enacted stigma and felt stigma, as well as internalized stigma, which encompasses self-stigma among sexual minorities and sexual prejudice among heterosexuals. Insights suggested by the model for reducing sexual prejudice are discussed. At the structural level, the framework highlights processes whereby heterosexism legitimates and perpetuates sexual stigma and the power differentials that it creates. Social and behavioral scientists, roles in working to eliminate heterosexism are discussed, and psychologists' contributions to court cases challenging state sodomy laws are described. It is argued that confronting sexual stigma will not only address an important social problem but will also enrich scientific understanding of human behavior. 相似文献
102.
103.
Donald E. Campbell 《Theory and Decision》1978,9(3):255-266
A computationally viable choice function possesses, in addition to other important properties, adaptability - as new alternatives become feasible the set of best alternatives corresponding to the new feasible set can be located without having to reconsider previously rejected alternatives. Adaptability is shown to be closely related to, in fact characteristic of, the standard notions of rationality (expressed in terms of transitivity properties). Adaptability provides a generalization of conventional rationality and in addition leads to the choice function proposed by Schwartz, albeit from an entirely different route, that of computational viability. 相似文献
104.
Susan J. Spieker Susan B. Campbell Nathan Vandergrift Kim M. Pierce Elizabeth Cauffman Elizabeth J. Susman Glenn I. Roisman the NICHD Early Child Care Research Network 《Social Development》2012,21(2):354-375
This study examined gender differences in the level and developmental course of relational aggression in middle childhood, as well as early predictors and outcomes of relational aggression, after controlling for concurrent physical aggression. Relational (RAgg) and Physical aggression (PAgg) scores for 558 boys and 545 girls at the ages of eight to 11 in the NICHD Study of Early Child Care and Youth Development (SECCYD) were created by combining the highest rating for each item across mother and teacher reports. Longitudinal analyses were conducted using latent curve models of RAgg with PAgg as a time‐varying covariate, with all parameters allowed to vary by gender. Boys and girls had different growth parameters of RAgg. Girls' RAgg intercept was higher, and the slope was not different from zero; boys' RAgg intercept was lower, and the slope declined. Mother–child conflict in early childhood predicted RAgg intercept for both boys and girls, but maternal harsh control and sensitivity were also uniquely predictive for girls whereas center care was uniquely predictive for boys. RAgg intercept predicted adolescent self‐reports of depression for girls and delinquency and risk‐taking for both boys and girls; the magnitude of the association with risk taking was significantly greater for boys. 相似文献
105.
106.
This article presents the findings of a case study examining the relationship between social capital and individual participation in collective action on a Caribbean island recovering from devastation inflicted by Hurricanes Ivan and Emily. Using data drawn from 114 residential surveys on the island of Carriacou, Grenada, over the summer of 2006, we empirically test social capital as a predictor of individual participation in both formal and informal civic events. In addition, we further the theoretical development of the concept of social capital by independently testing the relationships between its multiple dimensions, specifically social networks; interpersonal trust; and norms of reciprocity. We find that associational membership and age are the two strongest predictors, while interpersonal trust, gender, and marital status are also significant. Our path analysis reveals that there is not a significant direct effect between associational membership and interpersonal trust, suggesting that the two dimensions may have independent, yet complementary, influences. This study sheds light on factors influencing citizen participation in “civic” forms of collective action in a developing region of the world, while demonstrating the multidimensional nature of social capital. 相似文献
107.
Christopher R. Kirman Sean M. Hays Gregory L. Kedderis Michael L. Gargas & Dale E. Strother 《Risk analysis》2000,20(1):135-152
Historically, U.S. regulators have derived cancer slope factors by using applied dose and tumor response data from a single key bioassay or by averaging the cancer slope factors of several key bioassays. Recent changes in U.S. Environmental Protection Agency (EPA) guidelines for cancer risk assessment have acknowledged the value of better use of mechanistic data and better dose–response characterization. However, agency guidelines may benefit from additional considerations presented in this paper. An exploratory study was conducted by using rat brain tumor data for acrylonitrile (AN) to investigate the use of physiologically based pharmacokinetic (PBPK) modeling along with pooling of dose–response data across routes of exposure as a means for improving carcinogen risk assessment methods. In this study, two contrasting assessments were conducted for AN-induced brain tumors in the rat on the basis of (1) the EPA's approach, the dose–response relationship was characterized by using administered dose/concentration for each of the key studies assessed individually; and (2) an analysis of the pooled data, the dose–response relationship was characterized by using PBPK-derived internal dose measures for a combined database of ten bioassays. The cancer potencies predicted for AN by the contrasting assessments are remarkably different (i.e., risk-specific doses differ by as much as two to four orders of magnitude), with the pooled data assessments yielding lower values. This result suggests that current carcinogen risk assessment practices overestimate AN cancer potency. This methodology should be equally applicable to other data-rich chemicals in identifying (1) a useful dose measure, (2) an appropriate dose–response model, (3) an acceptable point of departure, and (4) an appropriate method of extrapolation from the range of observation to the range of prediction when a chemical's mode of action remains uncertain. 相似文献
108.
Allan W. Gregory 《商业与经济统计学杂志》2013,31(1):107-115
In this article we propose a nonparametric test for autoregressive conditional heteroscedasticity based on finite-state Markov chains. A simple Monte Carlo experiment suggests that in finite samples it performs comparably to the Lagrange multiplier test under conditional normality and is superior for the t, lognormal, and exponential distributions. As an illustration, we apply both tests to Canadian/U.S. forward foreign exchange data. 相似文献
109.
This paper contrasts and compares the institutional framework for fatherhood and father involvement and the survey evidence relating to fathers’ contribution to childcare and domestic work in the two countries. It shows that while men's contribution to such activities appears to be increasing in both France and the UK, change is slow and father involvement does not necessarily seem to correlate directly either with patterns of female labour force participation or with the support offered by the institutional framework. The authors explore the theoretical frameworks most appropriate for explaining their findings and situate them primarily in terms of Pfau-Effinger's theorization of the gender arrangement (1998, 2002, 2004). The authors conclude that while change in father involvement is slow, the introduction of statutory and organizational work–life balance measures which alter the gender order open up opportunities for negotiated change in the division of the labour in the home. 相似文献
110.
Gregory M. Kaladjian 《Journal of Children and Poverty》1996,2(1):93-104
Due to the continual reliance on an outdated paradigm, current welfare reform proposals fail to adequately address the fundamental problems behind the welfare system itself. Obstacles to welfare reform abound, yet are not insurmountable with a redefinition of the federal role and a new overall way of thinking. Through the reexamination of current and past policies and existing cultural mores, the welfare system could, be recreated to rely on a new paradigm: cyberfare. Cyberfare is an economic and social support system which addresses the issues associated with an information/technology age, global economy, and the changing role of families and social institutions. Although the incorporation of cyberfare and the reforming of the welfare system is not without its challenges, it is vital to solving the poverty problem in American society. 相似文献