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   1238篇
  免费   66篇
各国政治   72篇
工人农民   59篇
世界政治   90篇
外交国际关系   102篇
法律   684篇
中国政治   10篇
政治理论   277篇
综合类   10篇
  2023年   18篇
  2022年   23篇
  2021年   14篇
  2020年   38篇
  2019年   47篇
  2018年   46篇
  2017年   58篇
  2016年   65篇
  2015年   39篇
  2014年   56篇
  2013年   169篇
  2012年   58篇
  2011年   41篇
  2010年   39篇
  2009年   41篇
  2008年   45篇
  2007年   61篇
  2006年   45篇
  2005年   54篇
  2004年   36篇
  2003年   37篇
  2002年   43篇
  2001年   19篇
  2000年   18篇
  1999年   25篇
  1998年   13篇
  1997年   9篇
  1996年   7篇
  1995年   15篇
  1994年   10篇
  1993年   3篇
  1992年   20篇
  1991年   7篇
  1990年   6篇
  1989年   10篇
  1988年   8篇
  1987年   6篇
  1986年   7篇
  1985年   6篇
  1984年   3篇
  1983年   7篇
  1982年   4篇
  1981年   2篇
  1980年   4篇
  1975年   3篇
  1973年   2篇
  1969年   3篇
  1966年   3篇
  1962年   1篇
  1955年   1篇
排序方式: 共有1304条查询结果,搜索用时 15 毫秒
771.
International development cooperation is undergoing fundamental changes. New – or often re-emerging – actors have gained importance during the past two decades, and are increasingly challenging the traditional approach to development cooperation associated with the members of the Development Assistance Committee of the oecd. Their supposedly alternative paradigm, ‘South–South cooperation’ (ssc), has been recognised as an important cooperation modality, but faces contradictions that are not too different from those of its North–South counterpart. ssc providers are highly heterogeneous in terms of policies, institutional arrangements, and engagement with international forums and initiatives. This article contributes to current debates on ssc by mapping the diversity of its actors – based on illustrative case studies from the first and second ‘wave’ of providers – and by presenting and discussing some possible scenarios for the future of ssc within the international aid system.  相似文献   
772.
773.
School districts are faced with the challenge of how best to serve the needs of a growing homeless student population. As the numbers of homeless children and youth continue to rise, it is imperative for educators and others to understand the experiences of unaccompanied homeless youth. A qualitative research project was undertaken to obtain the perspectives of six high school students experiencing homelessness. These perspectives illuminate the various and multiple factors intersecting with student's educational lives. Their narratives uncovered the following themes: (a) Homelessness as a misnomer, (b) Homelessness is not a choice, (c) Caring adults, and (d) Student agency. Their counternarratives challenge adults working with unaccompanied homeless youth to rethink and reimagine the manner in which homelessness is understood and framed; this is especially critical in educational spaces. Schools often are the primary contexts in which youth spend their time and can be instrumental to providing youth experiencing homelessness with the support and resources they identify as being critical to their educational engagement and success.  相似文献   
774.
Previous correlational research indicates that adolescent girls who use social network sites more frequently are more dissatisfied with their bodies. However, we know little about the causal direction of this relationship, the mechanisms underlying this relationship, and whether this relationship also occurs among boys to the same extent. The present two-wave panel study (18 month time lag) among 604 Dutch adolescents (aged 11–18; 50.7 % female; 97.7 % native Dutch) aimed to fill these gaps in knowledge. Structural equation modeling showed that social network site use predicted increased body dissatisfaction and increased peer influence on body image in the form of receiving peer appearance-related feedback. Peer appearance-related feedback did not predict body dissatisfaction and thus did not mediate the effect of social network site use on body dissatisfaction. Gender did not moderate the findings. Hence, social network sites can play an adverse role in the body image of both adolescent boys and girls.  相似文献   
775.
776.
777.
778.
779.
780.
The literature on congressional committees has largely overlooked the impact of jurisdictional fights on policy proposals and outcomes. This paper develops a theory of how legislators balance the benefits of expanded committee jurisdiction against preferred policy outcomes. It shows why (a) senior members, and junior members in safe seats, are most likely to challenge a committee’s jurisdiction; (b) policy proposals may be initiated off the proposer’s ideal point for jurisdictional gains; (c) policy outcomes will generally be more moderate with jurisdictional fights than without these turf wars. We empirically investigate these results examining proposed Internet intellectual property protection legislation in the 106th Congress.  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