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81.
A central sociological problem is the extent to which genetics and the environment influence human behavior. Studies of twins are a core method in attempts to disentangle and to determine the comparative strength of genetic and environmental influences on psychosocial outcomes. A critical assumption of twin studies is that both monozygotic "identical" twins and dizygotic "fraternal" twins share common social environments. Therefore, any greater similarity of monozygotic than dizygotic twins is attributed to genetic influences. This paper tests the equal environment assumption by examining the extent to which greater concordance of adolescent monozygotic compared to dizygotic twins results from social, as well as genetic, influences. Bivariate comparisons indicate that monozygotic twins show greater similarity than dizygotic twins in socially-based characteristics including physical attractiveness, time spent in each other's company, the overlap in friendship networks, and friends' use of alcohol. Multivariate analyses indicate that measures of the social environment sometimes reduce or eliminate apparent genetic effects. In comparison with genetic indicators, social variables are usually stronger predictors of depression and alcohol use and abuse. These findings suggest that past twin studies could overstate the strength of genetic influences because some similarities in behavior among monozygotic compared to dizygotic twins stem from social influences. 相似文献
82.
The purpose of this study was to refine and elaborate models of personality and relationship-specific characteristics in the perpetration of stalking and psychological abuse. Three hundred and forty-two college students who had been in intimate relationships completed a series of questionnaires about their most recent breakup and their former relationship. Our hypotheses were supported, with harsh parental discipline, anxious attachment, and need for control of one's partner forming a common cluster in the prediction of stalking and psychological abuse. For psychological abuse, relationship dissatisfaction added to the predictive factors; whereas for stalking, the level of anger-jealousy over the breakup was the major added factor. Degree of anger-jealousy was influenced by being the recipient of a breakup and the level of passion. 相似文献
83.
Semi‐structured one‐on‐one interviews with 102 gay and bisexual men were conducted to examine the reasoning processes men use to exempt themselves from practicing safe sex. Qualitative analysis of the interviews revealed the following recurring themes: (a) Many men who were in couple relationships avoided condom use for reasons involving intimacy or trust, or because both partners were HIV‐negative; (b) unsafe sex sometimes occurred inadvertently or involuntarily; (c) negative moods and self‐images were associated with unsafe sex; (d) by “intuiting” that their partner was HIV‐negative, participants exempted themselves from the need for safe sex; and (e) when the boundary between safe and unsafe was unclear, participants used a combination of unofficial and official guidelines to determine what is safe. 相似文献
84.
Lennard J. Davis 《Disability & Society》2013,28(7):1032-1033
85.
86.
Glenn W. Suter II 《Risk analysis》2000,20(2):173-178
This article presents arguments for the development of generic assessment endpoints for ecological risk assessment. Generic assessment endpoints would be ecological entities and attributes that are assumed to be worthy of protection in most contexts. The existence of generic assessment endpoints would neither create a requirement that they be used in every assessment nor preclude the use of other assessment endpoints. They would simply be a starting point in the process of identifying the assessment endpoints for a particular assessment. They are needed to meet legal mandates, to provide a floor for environmental degradation, to provide some consistency in environmental regulation, as exemplars for site- or project-specific assessment endpoints, to allow development of methods and models, to give risk managers the courage to act, for screening and site-independent assessments, to support environmental monitoring, to facilitate communication, and to avoid paralysis by analysis. Generic assessment endpoints should include not only a list of entities and attributes, but also explanations of each endpoint, guidance on their use and interpretation, and measures and models that could be used to estimate them. 相似文献
87.
Murray S. Davis 《Qualitative sociology》1997,20(3):369-388
By originating and developing the sociological investigation of human experience, Georg Simmel and Erving Goffman have shifted social phenomena at the edge of awareness to the center of attention, and have legitimated their study for contemporary sociologists. Both Simmel and Goffman describe these subtle social phenomena by distinguishing their perceptual boundaries and crossover elements, pointing out their common features when their statuses differ, and reversing their traditional location in means-end and cause-effect chains. But Durkheim's influence on Goffman's basic conceptions of interaction, individual, and society differentiated his interpretation of these social phenomena from Simmel's. Moreover, Simmel's and Goffman's explanations of these social phenomena evolve in different directions, revealing the antithetical goals toward which spiritual transcendental Simmelians and cynical reductive Goffmanians would lead sociology. 相似文献
88.
James A Davis 《Social science research》1978,7(2):151-179
A review of recently developed simple techniques for analyzing data in the form of proportions from replicated, cross-sectional, sample surveys. (A) One variable over time—tests for homogeneity, pooling homogeneous proportions, tests for linear trends with as few as three time points, tests for departures from linearity; (B) Two variables with a constant percentage difference—four fold tables as rudimentary causal models, decomposing change with linear flow graphs; (C) Extension of the flow graph techniques to—three or more variables and changing coefficients; (D) Comments implying panel designs are somewhat over-rated and successive cross-sections somewhat under-rated. 相似文献
89.
In assessing the influence of regional Environmental Protection Agency EPA offices on the state management of hazardous waste programs, we focused on the extent to which federal administrative decisions affect levels of enforcement activity by state environmental agencies and whether these effects vary over time. Our results indicated that state enforcement actions were affected by state program capacity variables such as primacy and the strength of existing hazardous waste policies as well as one federal-level factor—the distribution of grant monies. The impact of federal oversight decisions was minimal. 相似文献
90.
A growing body of evidence reveals that people of color and low-income persons have borne greater environmental and health risks than the society at large in their neighborhoods, workplace, and playgrounds. Over the last decade or so, grassroots activists have attempted to change the way government implements environmental, health, and civil rights laws. Grassroots groups have organized, educated, and empowered themselves to improve the way government regulations and environmental policies are administered. A new movement emerged in opposition to environmental racism and environmenttal injustice. Over the last decades or so, grassroots activists have had some success in changing the way the federal government treats communities of color and their inhabitants. Grassroots groups have also organized, educated, and empowered themselves to improve the way health and environmental policies are administered. Environmentalism is now equated with social justice and civil rights. 相似文献