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   17720篇
  免费   568篇
  国内免费   5篇
各国政治   739篇
工人农民   890篇
世界政治   1201篇
外交国际关系   609篇
法律   11114篇
中国共产党   6篇
中国政治   165篇
政治理论   3382篇
综合类   187篇
  2020年   232篇
  2019年   297篇
  2018年   367篇
  2017年   436篇
  2016年   431篇
  2015年   315篇
  2014年   333篇
  2013年   1689篇
  2012年   489篇
  2011年   527篇
  2010年   425篇
  2009年   448篇
  2008年   555篇
  2007年   578篇
  2006年   572篇
  2005年   507篇
  2004年   497篇
  2003年   527篇
  2002年   462篇
  2001年   695篇
  2000年   573篇
  1999年   494篇
  1998年   260篇
  1997年   185篇
  1996年   223篇
  1995年   194篇
  1994年   212篇
  1993年   208篇
  1992年   344篇
  1991年   377篇
  1990年   354篇
  1989年   297篇
  1988年   338篇
  1987年   291篇
  1986年   332篇
  1985年   301篇
  1984年   244篇
  1983年   227篇
  1982年   197篇
  1981年   203篇
  1980年   142篇
  1979年   191篇
  1978年   136篇
  1977年   118篇
  1976年   105篇
  1975年   130篇
  1974年   136篇
  1973年   110篇
  1972年   103篇
  1969年   100篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
91.
92.
We tested competing hypotheses derived from Gottfredson and Hirschis (1990) general theory and Moffitt's (1993a) developmental theory of antisocial behavior. The developmental theory argues that different factors give rise to antisocial behavior at different points in the life course. In contrast, the general theory maintains that the factor underlying antisocial behavior (i.e., criminal propensity) is the same at all ages. To test these competing predictions, we used longitudinal data spanning from age 5 to age 18 for the male subjects in the Dunedin Multidisciplinary Health and Development Study. Using reports from three sources (parents, teachers, and the boys themselves), we estimated second-order confirmatory factor models of antisocial behavior. These models provided consistent support for the developmental theory, showing that separate latent factors underlie childhood and adolescent antisocial behavior. Moreover, we found that these childhood and adolescent factors related in ways predicted by Moffitt's developmental theory to four correlates of antisocial behavior: Childhood antisocial behavior was related more strongly than adolescent antisocial behavior to low verbal ability, by per activity, and negative/impulsive personality, whereas adolescent antisocial behavior was related more strongly than childhood antisocial behavior to peer delinquency. The two underlying latent factors also showed the predicted differential relations to later criminal convictions: Childhood antisocial behavior was significantly more strongly associated with convictions for violence, while adolescent antisocial behavior was significantly more strongly associated with convictions for nonviolent offenses.  相似文献   
93.
94.
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   
95.
96.
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   
97.
98.
99.
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   
100.
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