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   10469篇
  免费   335篇
各国政治   628篇
工人农民   402篇
世界政治   764篇
外交国际关系   512篇
法律   5807篇
中国共产党   2篇
中国政治   71篇
政治理论   2527篇
综合类   91篇
  2020年   115篇
  2019年   156篇
  2018年   219篇
  2017年   251篇
  2016年   256篇
  2015年   178篇
  2014年   221篇
  2013年   1327篇
  2012年   215篇
  2011年   252篇
  2010年   239篇
  2009年   244篇
  2008年   271篇
  2007年   281篇
  2006年   288篇
  2005年   260篇
  2004年   242篇
  2003年   255篇
  2002年   242篇
  2001年   344篇
  2000年   304篇
  1999年   284篇
  1998年   148篇
  1997年   136篇
  1996年   107篇
  1995年   113篇
  1994年   129篇
  1993年   117篇
  1992年   160篇
  1991年   210篇
  1990年   189篇
  1989年   191篇
  1988年   175篇
  1987年   201篇
  1986年   195篇
  1985年   187篇
  1984年   159篇
  1983年   160篇
  1982年   121篇
  1981年   136篇
  1980年   99篇
  1979年   159篇
  1978年   120篇
  1977年   89篇
  1976年   85篇
  1975年   95篇
  1974年   105篇
  1973年   101篇
  1972年   67篇
  1971年   67篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
11.
Stab wounds were made in parenchymatous organs (e.g. liver, spleen, kidneys, lungs) using a variety of instruments. The shape of the resulting canal was investigated by X-ray analysis after introduction of an X-ray contrast medium. The best contrast was obtained using a contrast medium containing barium. The shape of the canal gave a direct representation of the outline of the instrument used. The width of the canal was however, always several millimeters smaller than the corresponding blade of the instrument. The position of the blade back in single-edged blades could be demonstrated with stronger contrast.  相似文献   
12.
The conventional wisdom in criminology is that adult onset of offending is a rare event. Closer examination of the extant literature that use official records, however, reveals that an average of 50 percent of adult offenders initiate offending at age eighteen or older. Although criminological research has investigated late onset offending in adolescence, there is little research on adult onset offending and the correlates of adult offending. Using police contact and interview data from the 1942 and 1949 birth cohort data from Racine, WI, this study investigated the correlates of crime for adult onset and persistent offenders. The results show that employment is the only correlate to affect the probability of adult offending differently for previously delinquent and nondelinquent offenders. This article concludes by highlighting the neglect of research on adult offenders, specifically the large percentage of adult onset offenders, and calling for more research on this topic.  相似文献   
13.
14.
15.
16.
Past research has largely ignored the developmental changes within the child that account for the association between parenting and risk for delinquency. We used structural equation modeling and data from a longitudinal study of several hundred African‐American families to test the contentions of various theories regarding the sociocognitive and emotional factors that mediate the impact of parental behavior on a youth's risk for delinquency. Our findings largely supported the theories. The impact of monitoring/discipline was indirect through low self‐control and acceptance of deviant norms, whereas the effect of hostility/ rejection was indirect through low self‐control, hostile view of relationships, and acceptance of deviant norms. These two dimensions of parenting were no longer related either to affiliation with deviant peers or to conduct problems once the effects of these psychological characteristics were taken into account; the impact of these parenting practices was completely mediated by these four cognitive/affective variables. Contrary to expectation, however, these psychological factors did not mediate any of the relationship between caretaker involvement in antisocial behavior and child conduct problems.  相似文献   
17.
18.
This paper addresses the relationship between accumulated knowledge and U.S. policy dealing with failed states and terrorism. The central thesis is threefold: (1) that more was known about the possible linkages between failing states and terrorism than appears in pre-9/11 U.S. policies; (2) that since 9/11 some important realignment of knowledge and practice has occurred, but it remains partial and incomplete; and (3) that new knowledge, especially about the policies to sustain and promote legitimate governance, needs to be generated in order to support an effective grand strategy for addressing the threats and challenges of the twenty-first century. The paper recommends such a grand strategy and, in addition to the required new knowledge, a significant reorganization of the U.S. national security policy-making apparatus. International studies curricula appear well suited for contributing to that new knowledge and the practitioners we require.  相似文献   
19.
20.
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