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   9807篇
  免费   301篇
各国政治   403篇
工人农民   339篇
世界政治   704篇
外交国际关系   397篇
法律   6028篇
中国政治   80篇
政治理论   2070篇
综合类   87篇
  2021年   60篇
  2020年   125篇
  2019年   180篇
  2018年   210篇
  2017年   244篇
  2016年   246篇
  2015年   181篇
  2014年   260篇
  2013年   1022篇
  2012年   267篇
  2011年   259篇
  2010年   230篇
  2009年   240篇
  2008年   267篇
  2007年   314篇
  2006年   308篇
  2005年   255篇
  2004年   270篇
  2003年   285篇
  2002年   241篇
  2001年   367篇
  2000年   339篇
  1999年   267篇
  1998年   122篇
  1997年   106篇
  1996年   109篇
  1995年   104篇
  1994年   117篇
  1993年   104篇
  1992年   178篇
  1991年   183篇
  1990年   155篇
  1989年   190篇
  1988年   153篇
  1987年   175篇
  1986年   160篇
  1985年   183篇
  1984年   154篇
  1983年   169篇
  1982年   123篇
  1981年   121篇
  1980年   93篇
  1979年   113篇
  1978年   89篇
  1977年   79篇
  1976年   67篇
  1975年   62篇
  1974年   69篇
  1973年   76篇
  1970年   53篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
A minisatellite probe, MZ 1.3, detecting hypervariable fragment patterns was isolated from a human genomic library. A repetitive sequence of 27 bp length was identified which is contained in the probe approx. 40 times. The MZ 1.3 repeat shows variable homology of 53-73% to the repetitive sequence of the protein III gene of the bacteriophage M13 genome. Polymorphic restriction fragment patterns were found with MZ 1.3 using the enzymes Hinf I, BstN I, Hae III, Mbo I, PstI/Pvu II, and Rsa I. An average of 18 polymorphic fragments was observed using Hinf I as enzyme. The band sharing frequency after Hinf I digestion among unrelated individuals was determined to be 23.8 +/- 7.2%. An example for the application of MZ 1.3 to paternity testing in an incest case is given. The probe can be used with radioactive or non-radioactive detection systems. An approach is presented to compare polymorphic fragment patterns from individuals obtained by independent gel runs on the basis of relative band positions (RBP) and calculated in a computerized analysis.  相似文献   
32.
33.
34.
35.
Lancaster  Thomas D. 《Publius》1997,27(4):115-134
Acknowledging Spain's diversity, this article assesses the impactof nationalism, regionalism, and other factors on public opinionabout the country's young democratic institutions. Utilizingsurvey data, the analysis focuses on national and regional variationsin public preferences for central state institutions and federalistor other designs for state-regional relations. It concludesthat a strong base of support exists for the current democraticsystem and the institutions through which it is implemented.Nevertheless, some doubts remain about the basic state structureof central-regional relations.  相似文献   
36.
37.
38.
This study probes the interconnections among distrust of government, the historical context, and public support for the death penalty in the United States with survey data for area-identified samples of white and black respondents. Multilevel statistical analyses indicate contrary effects of government distrust on support for the death penalty for blacks and whites, fostering death penalty support among whites and diminishing it among blacks. In addition, we find that the presence of a "vigilante tradition," as indicated by a history of lynching, promotes death penalty support among whites but not blacks. Finally, contrary to Zimring's argument in The Contradictions of Capital Punishment , we find no evidence that vigilantism moderates the influence of government distrust on support for the death penalty, for either whites or blacks. Our analyses highlight the continuing influence of historical context as well as contemporary conditions in the formation of public attitudes toward criminal punishment, and they underscore the importance of attending to racial differences in the analysis of punitive attitudes.  相似文献   
39.
40.
Employing a critical-mass theory of collective action, this article models the emergence of cooperation among state attorneys general in litigation against the tobacco industry. These suits were not independent events, nor was cooperation based on prior agreement among the attorneys general. Rather, cooperation emerged over time as a result of interdependent decision-making, with early lawsuits increasing the likelihood of later suits. The model emphasizes the "production function" of the collective good and the heterogeneity of the attorneys general and their political environments as keys to the development of cooperation. The model is tested against data using event history analysis.  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