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   1026篇
  免费   46篇
管理学   158篇
民族学   6篇
人口学   99篇
丛书文集   5篇
理论方法论   143篇
综合类   15篇
社会学   527篇
统计学   119篇
  2023年   4篇
  2022年   4篇
  2021年   5篇
  2020年   14篇
  2019年   30篇
  2018年   26篇
  2017年   41篇
  2016年   46篇
  2015年   23篇
  2014年   33篇
  2013年   164篇
  2012年   42篇
  2011年   40篇
  2010年   32篇
  2009年   23篇
  2008年   29篇
  2007年   37篇
  2006年   38篇
  2005年   24篇
  2004年   28篇
  2003年   24篇
  2002年   38篇
  2001年   21篇
  2000年   19篇
  1999年   30篇
  1998年   13篇
  1997年   10篇
  1996年   19篇
  1995年   14篇
  1994年   7篇
  1993年   13篇
  1992年   14篇
  1991年   16篇
  1990年   18篇
  1989年   7篇
  1988年   14篇
  1987年   9篇
  1985年   11篇
  1984年   8篇
  1983年   5篇
  1982年   12篇
  1981年   4篇
  1980年   8篇
  1979年   8篇
  1976年   3篇
  1975年   11篇
  1974年   4篇
  1971年   5篇
  1970年   3篇
  1969年   3篇
排序方式: 共有1072条查询结果,搜索用时 687 毫秒
121.
The effects of maternal cigarette smoking during pregnancy on behavioral and physiological measures of arousal were examined in a sample of 50 neonates. After the effects of alcohol, caffeine, and maternal demographic variables were statistically controlled, regression analyses showed that maternal smoking during pregnancy was predictive of higher heart rates overall and during quiet and active sleep. Maternal smoking during pregnancy was also predictive of lower heart rate variability and an increased number of tremors and changes in behavioral state. These findings suggest that maternal cigarette smoking during pregnancy affects the regulation of spontaneous autonomic activity in neonates.  相似文献   
122.
123.
The notion of embeddedness (Granovetter, 1985) neglects of the material dimension of economic relations. This paper contributes to the literature of market devices (Callon et al., 2007) with an exploration of the material dimensions of economic embeddedness in the case of the everyday market activities of a group of non‐professional investors in the UK. It examines the attributes of a materially embedded market through the categories of socio‐economic embeddedness specified by Uzzi (1997) and draws attention to the superficial and rhetorical nature of the face‐to‐face social relations encountered in this market. The paper seeks to invigorate the notion of embeddedness by expanding the mechanisms through which socio‐economic relations are understood to arise. The paper offers support to the literature of market devices’ assertion that a concept of materially embedded economic relations can accommodate politics, culture, and regulation, and that it offers a nuanced perspective on agency and identity in the marketplace.  相似文献   
124.
Concerns about the mental health and well‐being of children and young people have been articulated in health and education policy fields as a call for closer working between schools and providers of mental health support services. Drawing from a Scottish study, this article explores issues of access, when mental health initiatives are sited in formal educational settings. In particular, it focuses on the implications for the agency of children and young people seeking support from those services when and how they choose. The study argues that over‐reliance on teachers as the main referral route to service influences what is deemed to be a problem, who is thought to need support and how the interventions are viewed by the children and young people. Alternative approaches are discussed, which offer opportunities for children and young people to explore the available services and make their own choices about their level of engagement.  相似文献   
125.
The magnitude of racial differences in first birth timing vary greatly depending upon the data sources from which they are estimated. Vital registration data (Heuser 1976; with updates from the National Center for Health Statistics 1974–1990) show that in recent years nonwhites have higher risks of a first birth at virtually all ages compared to whites. As a result very large and historically novel differentials in childlessness are forecast using these data (see Rindfuss et al. 1988; Chen & Morgan 1991; Morgan & Chen 1992). However, retrospective fertility history data collected from the 1980, 1985 and 1990 Current Population Surveys (CPS) suggest much smaller racial differences in completed childlessness and isolate racial differences in probabilities of first births at young ages. Differences also exist between theses two series for whites prior to the mid-1960s but not afterwards. Reasons for these differing estimates are suggested and examined. We conclude that a substantial portion of the differences result from an accumulation of biases in the vital registration estimates that affect primarily estimates of first birth timing. Thus, the CPS data provide a more firm basis for racial comparisons of first birth timing.  相似文献   
126.
Objectives. Most studies of media effects in political communication focus on news media. A smaller body of work extends theories of news media effects to fictional entertainment media. Just as news media engage in priming and agenda setting, these studies suggest that fictional media do as well. In this study, we deal with fictional media's framing of issues. No research has sought to test the effects of framing in explicitly fictional media on political opinions. We develop the outlines of a theory we call “fictional framing” and test it in an experiment. Methods. Participants in our treatment group watched the film Cider House Rules. The movie frames the issue of abortion in the case of incest in a pro‐choice way, and frames morality in terms of following one's own conscience. Results. The film influenced opinions in ways consistent with the framing of these issues. Conclusions. Since abortion opinions and moral values tend to be entrenched, we consider this a strong first test of the effects of fictional framing.  相似文献   
127.
128.
129.
130.
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