首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   187篇
  免费   14篇
  2023年   2篇
  2021年   2篇
  2020年   2篇
  2019年   4篇
  2018年   4篇
  2017年   5篇
  2016年   9篇
  2015年   7篇
  2014年   4篇
  2013年   35篇
  2012年   14篇
  2011年   2篇
  2009年   3篇
  2008年   5篇
  2007年   4篇
  2006年   8篇
  2005年   7篇
  2004年   8篇
  2003年   6篇
  2002年   3篇
  2001年   3篇
  1999年   4篇
  1998年   2篇
  1994年   1篇
  1992年   3篇
  1991年   2篇
  1989年   2篇
  1988年   2篇
  1987年   5篇
  1986年   3篇
  1984年   1篇
  1983年   6篇
  1982年   1篇
  1981年   2篇
  1980年   1篇
  1979年   2篇
  1977年   1篇
  1976年   1篇
  1975年   2篇
  1974年   2篇
  1973年   1篇
  1971年   1篇
  1970年   5篇
  1969年   2篇
  1968年   1篇
  1967年   1篇
  1965年   2篇
  1963年   1篇
  1962年   1篇
  1946年   1篇
排序方式: 共有201条查询结果,搜索用时 15 毫秒
181.
Spiritual and religious capital are forms of the broader construct of social capital. The present study, using probability‐based sampling methods, surveyed a national sample of African American adults to examine the relative contributions of spiritual and religious capital to their physical and emotional functioning. Analyses were conducted to determine if these constructs made a unique contribution above and beyond general social capital. African American men and women (N = 803) were interviewed by telephone. Hierarchical linear regressions revealed that, across the full sample, although social capital was a positive predictor of physical and emotional functioning (p < .05 and p < .001), neither religious nor spiritual capital made an additional contribution to these outcomes. However, the relationships among these variables differed for men and women. Among men, social capital predicted positive emotional functioning (p < .001) but not physical functioning; spiritual and religious capital made no additional contribution to either outcome variable. Among women, social capital predicted positive emotional functioning (p < .01) but not physical functioning. However, religious capital did make a significant additional contribution to the prediction of emotional functioning (ΔR2, p < .01). Dividing the sample into different age groups did not produce any different findings from those found with the sample as a whole. Findings are discussed in terms of implications for church‐ and faith‐based health promotion interventions aimed at health disparities reduction. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   
182.
Violence among youth is a pervasive public health problem. In order to make progress in reducing the burden of injury and mortality that result from youth violence, it is imperative to identify evidence-based programs and strategies that have a significant impact on violence. There have been many rigorous evaluations of youth violence prevention programs. However, the literature is large, and it is difficult to draw conclusions about what works across evaluations from different disciplines, contexts, and types of programs. The current study reviews the meta-analyses and systematic reviews published prior to 2009 that synthesize evaluations of youth violence prevention programs. This meta-review reports the findings from 37 meta-analyses and 15 systematic reviews; the included reviews were coded on measures of the social ecology, prevention approach, program type, and study design. A majority of the meta-analyses and systematic reviews were found to demonstrate moderate program effects. Meta-analyses yielded marginally smaller effect sizes compared to systematic reviews, and those that included programs targeting family factors showed marginally larger effects than those that did not. In addition, there are a wide range of individual/family, program, and study moderators of program effect sizes. Implications of these findings and suggestions for future research are discussed.  相似文献   
183.
ABSTRACT

Research has demonstrated that hacker subculture – like many other tech-oriented communities – is disproportionately composed of men. While prior attempts have been made to explain this disparity, few, if any, explore the role of subculture in this gendered divide. Drawing from feminist theories, subcultural theory, and cultural criminology, this theoretical analysis examines the intersection of gender, social structure, hegemony, situated action, and subculture to argue that hacker subculture is (1) male-dominated and androcentric, (2) mired in language, like meritocratic rhetoric, which masks inequity, and (3) conducive to forms of sexual harassment and gendered exclusion. Implications for hacking research and subcultural theory are discussed throughout.  相似文献   
184.
185.
Previous experiments employing electrical or pharmacological induction, or instrumental reinforcement, of hippocampal theta rhythm in rats have reported subsequent performance changes in a number of learning situations. In all these studies theta induction took place either concurrent with or following the behaviour under investigation. In the present two experiments, a treatment phase of electrically-induced hippocampal theta (by septal stimulation at 7·7 Hz) preceded acquisition of a discrete trial, barpress response on a fixed ratio 5 reinforcement schedule. In one of three treatment conditions animals received electrical stimulation (1) on its own, or (2) in a classical conditioning relationship with food delivery as unconditioned stimulus, or (3) temporally uncorrelated with food delivery; controls were implanted with electrodes but not stimulated. After 15 days' acquisition of barpressing, all animals were extinguished over the subsequent 12 days. Results indicated that theta-driving stimulation, independent of any association with food, resulted in increased resistance to extinction of barpressing. In addition, conditions (1) and (3) enhanced the speed of response during early acquisition. These findings cast doubt on a “memory consolidation” hypothesis of hippocampal theta function and demonstrate a non-associative, long-lasting, proactive effect of theta induction on behaviour.  相似文献   
186.
187.
188.
189.
190.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号