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   17001篇
  免费   583篇
  国内免费   5篇
各国政治   701篇
工人农民   843篇
世界政治   1123篇
外交国际关系   571篇
法律   10880篇
中国共产党   6篇
中国政治   160篇
政治理论   3135篇
综合类   170篇
  2021年   99篇
  2020年   247篇
  2019年   302篇
  2018年   373篇
  2017年   440篇
  2016年   443篇
  2015年   314篇
  2014年   327篇
  2013年   1610篇
  2012年   479篇
  2011年   501篇
  2010年   407篇
  2009年   434篇
  2008年   521篇
  2007年   566篇
  2006年   525篇
  2005年   484篇
  2004年   471篇
  2003年   506篇
  2002年   450篇
  2001年   674篇
  2000年   544篇
  1999年   483篇
  1998年   250篇
  1997年   169篇
  1996年   210篇
  1995年   178篇
  1994年   198篇
  1993年   200篇
  1992年   326篇
  1991年   354篇
  1990年   342篇
  1989年   282篇
  1988年   323篇
  1987年   273篇
  1986年   322篇
  1985年   282篇
  1984年   230篇
  1983年   218篇
  1982年   177篇
  1981年   192篇
  1980年   127篇
  1979年   172篇
  1978年   124篇
  1977年   107篇
  1975年   123篇
  1974年   132篇
  1973年   104篇
  1972年   100篇
  1969年   98篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
Incarceration rates in the United States dramatically increased over the past several decades. This trend has drawn significant academic attention to prison overcrowding and its potential effect on inmate misconduct. The empirical relationship between inmate misconduct and overcrowding, however, is less than clear. To be sure, studies indicating positive, negative, and null relationships can all be found in the literature. The current research subjects this body of literature to a meta-analysis in an effort to: (1) clarify the direction and strength of the relationship between overcrowding and rates of prison misconduct across all studies, and (2) to uncover the degree to which variation in research outcomes can be attributed to methodological differences across studies. Results indicate that prison crowding has little substantive impact on inmate misconduct. Implications of the findings are discussed in detail.  相似文献   
102.
103.
Those in need of employment and training programs face a variety of difficulties. Accordingly, the federal response to labor market problems has encompassed a wide range of initiatives. These include preparing people for work (through skills training, the Job Corps, work experience programs); improving the functioning of the labor market (through matching workers with jobs, establishing a minimum wage, and the Targeted Jobs Tax Credit program); and preventing discrimination. Unresolved issues in these areas are examined. They include who should be targeted for federal assistance, which levels of government can best operate programs, how public versus private efforts should be balanced, how limited resources should be distributed, and how the welfare versus work question should be resolved.  相似文献   
104.
105.
106.
The present study examines the extent to which neighborhood and social psychological influences predict childhood violence among 867 African‐American youth. The results showed that neighborhood affluence was the only neighborhood‐level variable to exert a significant influence on childhood violence. Furthermore, childhood violence was significantly related to social psychological influences, such as adopting a street code, associating with violent peers, parental use of violence, and quality parenting. Overall, the findings suggested that simply living in a violent neighborhood does not produce violent children, but that family, peer, and individual characteristics play a large role in predicting violence in childhood.  相似文献   
107.
108.
109.
Rethinking the Meaning of Public Health   总被引:1,自引:0,他引:1  
  相似文献   
110.
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