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   17500篇
  免费   523篇
各国政治   717篇
工人农民   694篇
世界政治   1459篇
外交国际关系   609篇
法律   10417篇
中国共产党   2篇
中国政治   79篇
政治理论   3869篇
综合类   177篇
  2020年   217篇
  2019年   257篇
  2018年   330篇
  2017年   398篇
  2016年   424篇
  2015年   300篇
  2014年   344篇
  2013年   1722篇
  2012年   407篇
  2011年   443篇
  2010年   346篇
  2009年   392篇
  2008年   452篇
  2007年   479篇
  2006年   458篇
  2005年   413篇
  2004年   414篇
  2003年   433篇
  2002年   386篇
  2001年   686篇
  2000年   617篇
  1999年   512篇
  1998年   297篇
  1997年   251篇
  1996年   215篇
  1995年   206篇
  1994年   247篇
  1993年   224篇
  1992年   346篇
  1991年   378篇
  1990年   331篇
  1989年   351篇
  1988年   324篇
  1987年   345篇
  1986年   346篇
  1985年   339篇
  1984年   291篇
  1983年   326篇
  1982年   259篇
  1981年   248篇
  1980年   181篇
  1979年   254篇
  1978年   168篇
  1977年   155篇
  1976年   135篇
  1975年   128篇
  1974年   138篇
  1973年   118篇
  1972年   115篇
  1971年   96篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
141.
Both theory and research have been refined to gain a better understanding of when race and ethnicity matter in justice proceedings. In the present research, this line of inquiry was continued by differentiating among minority youth to assess the extent being African American, Native American, and Asian American influenced juvenile justice decision making and how these effects compared to one another and Whites. Utilizing an interpretation of the symbolic threat thesis that emphasizes stereotyping, the authors anticipated Native Americans to be responded to more severely than African Americans, followed by Asian Americans who were anticipated to be responded to more like Whites. The results indicated partial support for these expectations.  相似文献   
142.
The present study drew on four competing theoretical perspectives to examine the relationship between family structure and juvenile delinquency. Using data from the Add Health Study, the authors examined nonserious and serious delinquent behavior across youth from different types of households and also considered how the association between family structure and delinquency might be conditioned by family processes and economic factors. Results from negative binomial regression analyses indicated that, in general, type of household was not a significant predictor of nonserious or serious delinquency. Rather, maternal attachment emerged as the most important determinant of delinquent behavior among youth from all family types. The results are discussed within the context of Hirschi's original interpretation of social control theory and future directions for research are suggested.  相似文献   
143.
Postmortem examination of a former professional basketball player revealed an abnormal heart, most notably a single coronary artery. The literature on single coronary arteries is briefly reviewed, and the possible mechanism which caused the patient's condition is considered. This case is particularly unusual because of the patient's profession, which is so physically demanding.  相似文献   
144.
The fingernail ridge patterns of a pair of identical twins were compared to each other, their parents, and an unrelated subject. The patterns of the twins' nails showed regions of strong similarity but were distinguishable from one another. Fewer similarities were found when comparing the nails to those of the parents and the unrelated control. The twins were shown to be monozygotic by means of DNA profiling. This therefore represents the first demonstration of unique fingernail ridge patterns in subjects shown conclusively to be identical twins. When the fingernail ridge patterns were examined with a scanning electron microscope, the backscattered electron (BEI) images were found to have superior contrast when compared to the secondary electron (SEI) images.  相似文献   
145.
146.
147.
148.
149.
This paper applies the poliheuristic theory of foreign policy decision making to non-democratic states. Poliheuristic theory asserts that state leaders assign primary importance to their political survival; however, the meaning of "the political" varies dramatically from country to country. Furthermore, the types of actors who hold leaders politically accountable also vary between countries. Consequently, leaders often pursue vastly different means of ensuring their political survival. The author uses the common distinction between single-party, military, and personalist autocracies to show that apparently arbitrary differences in autocratic leaders' political concerns actually vary in systematic and potentially predictable ways. Because this argument is generalized to non-democratic states as a whole, it has important implications for the ways in which democratic states craft their policies toward autocracies.  相似文献   
150.
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