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   26033篇
  免费   1522篇
  国内免费   5篇
各国政治   1033篇
工人农民   1028篇
世界政治   1839篇
外交国际关系   798篇
法律   17748篇
中国共产党   7篇
中国政治   224篇
政治理论   4647篇
综合类   236篇
  2020年   490篇
  2019年   543篇
  2018年   642篇
  2017年   759篇
  2016年   758篇
  2015年   636篇
  2014年   658篇
  2013年   2506篇
  2012年   667篇
  2011年   767篇
  2010年   841篇
  2009年   814篇
  2008年   728篇
  2007年   735篇
  2006年   786篇
  2005年   662篇
  2004年   641篇
  2003年   667篇
  2002年   583篇
  2001年   997篇
  2000年   806篇
  1999年   706篇
  1998年   368篇
  1997年   282篇
  1996年   286篇
  1995年   285篇
  1994年   322篇
  1993年   299篇
  1992年   507篇
  1991年   546篇
  1990年   510篇
  1989年   476篇
  1988年   488篇
  1987年   424篇
  1986年   490篇
  1985年   465篇
  1984年   413篇
  1983年   381篇
  1982年   308篇
  1981年   303篇
  1980年   241篇
  1979年   303篇
  1978年   210篇
  1977年   176篇
  1976年   156篇
  1975年   189篇
  1974年   191篇
  1973年   159篇
  1972年   145篇
  1971年   143篇
排序方式: 共有10000条查询结果,搜索用时 62 毫秒
901.
Social cognitive models examining academic and career outcomes emphasize constructs such as attitude, interest, and self-efficacy as key factors affecting students’ pursuit of STEM (science, technology, engineering and math) courses and careers. The current research examines another under-researched component of social cognitive models: social support, and the relationship between this component and attitude and self-efficacy in math and science. A large cross-sectional design was used gathering data from 1,552 participants in four adolescent school settings from 5th grade to early college (41 % female, 80 % white). Students completed measures of perceived social support from parents, teachers and friends as well as their perceived ability and attitudes toward math and science. Fifth grade and college students reported higher levels of support from teachers and friends when compared to students at other grade levels. In addition, students who perceived greater social support for math and science from parents, teachers, and friends reported better attitudes and had higher perceptions of their abilities in math and science. Lastly, structural equation modeling revealed that social support had both a direct effect on math and science perceived abilities and an indirect effect mediated through math and science attitudes. Findings suggest that students who perceive greater social support for math and science from parents, teachers, and friends have more positive attitudes toward math and science and a higher sense of their own competence in these subjects.  相似文献   
902.
The peer context is a central focus in research on adolescent risk behaviors but few studies have investigated the role of the peer context in the perpetration of adolescent dating violence. This longitudinal study examined between-subjects and within-person contemporaneous and lagged effects of peer attributes, measured with social network analyses, on trajectories of dating violence perpetration and determined if effects varied by grade and/or sex of the adolescent. Data are from adolescents who participated in a five-wave panel study beginning when they were in 7 through 9th grade and ending when they were in 10 through 12th grade (n = 3,412); half were male, 40.5 % were white, 49.9 % were black and 10.4 % were of another race/ethnicity. Significant between-subjects effects indicate that adolescents who typically have friends who use dating violence, and girls who are typically high in social status, are at increased risk for using dating violence throughout adolescence. Adolescents who typically have high quality friendships and girls who typically have friends with pro-social beliefs are at decreased risk for using dating violence throughout adolescence. Significant within-person contemporaneous effects indicate that both boys and girls reported lower levels of dating violence than usual at times when they had more friends with pro-social beliefs, and reported higher levels of dating violence than usual at times when they had higher social status. None of the lagged effects were significant and none of the effects varied across grade. These findings suggest that the peer context plays an important role in the development of the perpetration of adolescent dating violence.  相似文献   
903.
In this paper, we examine the way a local manifestation of the globalization process, the boom in the shea trade in western Burkina Faso, has fueled socio-economic differentiation in shea activity as part of a wider differentiation process. We refer to the gender politics and agrarian change literatures to inform both within- and across-household mechanisms of differentiation. We analyze both the mechanisms of change and the resulting inequalities. Our results reveal the interplay between multiple drivers of change, and nuance the analysis of the winners and losers of globalization of shea activity.  相似文献   
904.
905.
And the Mirror Cracked: Feminist Cinema and Film Theory, by Anneke Smelik. London: Macmillan Press, 1998.

Simone de Beauvoir: A Critical Reader, edited by Elizabeth Fallaize. London and New York: Routledge, 1998.

Voice of the Living Light: Hildegard of Bingen and Her World, edited by Barbara Newman. Berkeley: University of California Press, 1998.

Women Preachers and Prophets Through Two Millennia of Christianity, edited by Beverly Mayne Kienzle and Pamela J. Walker. Berkeley: University of California Press, 1998.

Margaret Cavendish and the Exiles of the Mind, by Anna Battigelli. Lexington: The University Press of Kentucky, 1998.

Cracks in the Pedestal: Ideology and Gender in Hollywood, by Philip Green. Amherst: University of Massachusetts Press, 1998.

The Women and War Reader, edited by Lois Ann Lorentzen and Jennifer Turpin. New York: New York University Press, 1998.

Surrealist Women: An International Anthology, edited by Penelope Rosemont. Austin: University of Texas Press, 1998.

The Knotted Subjed: Hysteria and its Discontents, by Elisabeth Bronfen. Princeton: Princeton University Press, 1998.

Ventures into Childland: Victorians, Fairy Tales, and Femininity, by U.C. Knoepfimacher. Chicago: The University of Chicago Press, 1998.  相似文献   
906.
907.
Although many scholars of Central and Eastern Europe politics write about the relative weaknesses of civil societies, some studies delivered evidence of cases where interest groups were able to influence particular decisions and policies. Therefore, we aimed at identifying and examining the most influential national interest groups of eight different policy areas in post-communist Hungary hoping to explore the reasons for their success. Older generations of organisations benefit from political embeddedness, while newer advocacy groups rely more on legal instruments and public mobilisation. The operation of successful groups has not been affected by the strong political polarisation of the Hungarian party system.  相似文献   
908.
909.
910.
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