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   12488篇
  免费   201篇
  国内免费   1篇
管理学   1751篇
民族学   55篇
人才学   1篇
人口学   1141篇
丛书文集   69篇
教育普及   1篇
理论方法论   1218篇
综合类   185篇
社会学   5828篇
统计学   2441篇
  2020年   175篇
  2019年   249篇
  2018年   242篇
  2017年   386篇
  2016年   269篇
  2015年   228篇
  2014年   261篇
  2013年   2257篇
  2012年   369篇
  2011年   355篇
  2010年   287篇
  2009年   288篇
  2008年   354篇
  2007年   349篇
  2006年   321篇
  2005年   290篇
  2004年   263篇
  2003年   247篇
  2002年   269篇
  2001年   269篇
  2000年   255篇
  1999年   227篇
  1998年   192篇
  1997年   198篇
  1996年   209篇
  1995年   173篇
  1994年   146篇
  1993年   182篇
  1992年   197篇
  1991年   176篇
  1990年   181篇
  1989年   170篇
  1988年   149篇
  1987年   149篇
  1986年   155篇
  1985年   140篇
  1984年   171篇
  1983年   139篇
  1982年   128篇
  1981年   105篇
  1980年   127篇
  1979年   149篇
  1978年   113篇
  1977年   112篇
  1976年   108篇
  1975年   120篇
  1974年   94篇
  1973年   70篇
  1972年   74篇
  1971年   72篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
961.
962.
Combining conceptual models from immigration and educational research, this study investigated whether a normative antecedent to the transition to formal schooling in the contemporary U.S. – early child care – links Mexican immigrant status to various aspects of school readiness. Regression models with nationally representative data revealed that children from Mexican immigrant families were overrepresented in parental care and underrepresented in center‐based care compared to their native peers from other race/ethnic populations, which helped to explain a significant but small portion of their generally lower rates of both math achievement and externalizing symptoms in kindergarten. This mediating role of early child care, however, paled in comparison to family socioeconomic circumstances.  相似文献   
963.
Subjects viewed videotapes of truthful and deceptive messages. Channels presented were either face or body with or without speech. Subjects were instructed to segment each message into either large, medium, or small units; following the segmentation of a message, subjects rated its truthfulness. Results showed that subjects who organized the behavior into small units perceived the messages as more truthful than those who organized the behavior into either medium or large units. In addition, when speech was available, accuracy of lie detection was highest when the behavior was segmented into medium units; when speech was not available, accuracy of lie detection was highest when the behavior was segmented into small units. The effects of observation set on the perception of deception were discussed.  相似文献   
964.
965.
966.
967.
This article addresses the issue of how deeply social arrangements may penetrate into private emotion, in this instance, grief. It argues that the data necessary to address the issue satisfactorily are not available and thus current assumptions in the literature about the universality of the grief experience are at least suspect. However, there are theoretical reasons, derived from interactionist thought, to suspect that if certain components of the grief experience vary, so will the experience. Four of these components are examined (level of significance of the other who dies; definition of the situation surrounding the death; character of the self experiencing a loss through death; and the interactional situation/setting in which the prior three components occur). Evidence is also presented which is suggestive of space-time variation in these components. It is concluded that an assumption of the deep social shaping and thus the variability of grief is fruitful for further empirical inquiries.  相似文献   
968.
The relationship between drug use, school performance, and academic aspirations among 446 Anglo and Hispanic youths, age nine to seventeen, is explored. Two groups of subjects--current substance users and non-users--were interviewed. Subjects in each comparison group were similar in age, ethnicity, and gender. Overall results, consistent with prior research, indicate a significant relationship between current school performance, future educational aspirations, and drug use. No difference was noted between substance use groups on indicators of general interest in school work or probability of dropping out of school. Important differences in response patterns occurring with age, ethnicity, and gender were found.  相似文献   
969.
This paper addresses the therapeutic challenge presented in the initial phase of therapy by patients who have trouble playing and dreaming, that is, patients who use action-discharge and concrete communication and who show a relative lack of derivative, symbolic communication. An approach is described which conceptualizes therapy as taking place in an intermediate area between inner and outer reality, and in which playing, dreaming and interpretable transference, the vehicles of therapeutic work, can be facilitated. There can be advantages, in some cases, of using such an approach in family sessions. Clinical material is presented from the treatment of an adolescent in her family.  相似文献   
970.
The semimartingale decomposition of a Markov chain, whose value at some future time is known, is obtained by considering an enlarged filtration.  相似文献   
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