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   224篇
  免费   16篇
各国政治   16篇
工人农民   9篇
世界政治   13篇
外交国际关系   17篇
法律   83篇
中国政治   1篇
政治理论   98篇
综合类   3篇
  2024年   1篇
  2023年   1篇
  2022年   1篇
  2020年   8篇
  2019年   1篇
  2018年   5篇
  2017年   13篇
  2016年   15篇
  2015年   7篇
  2014年   3篇
  2013年   35篇
  2012年   8篇
  2010年   8篇
  2009年   5篇
  2008年   11篇
  2007年   10篇
  2006年   5篇
  2005年   8篇
  2004年   9篇
  2003年   3篇
  2002年   9篇
  2001年   9篇
  2000年   5篇
  1999年   8篇
  1998年   6篇
  1997年   7篇
  1996年   2篇
  1995年   1篇
  1994年   3篇
  1993年   4篇
  1992年   4篇
  1991年   2篇
  1990年   1篇
  1987年   2篇
  1986年   5篇
  1985年   1篇
  1983年   5篇
  1982年   3篇
  1981年   2篇
  1980年   1篇
  1978年   1篇
  1977年   2篇
排序方式: 共有240条查询结果,搜索用时 0 毫秒
11.
Where There are Data ... Quantifying the Unquantifiable   总被引:1,自引:1,他引:0  
  相似文献   
12.
13.
Since the mid-twentieth century, elite political behavior in the United States has become much more nationalized. In Congress, for example, within-party geographic cleavages have declined, roll-call voting has become more one-dimensional, and Democrats and Republicans have diverged along this main dimension of national partisan conflict. The existing literature finds that citizens have only weakly and belatedly mimicked elite trends. We show, however, that a different picture emerges if we focus not on individual citizens, but on the aggregate characteristics of geographic constituencies. Using biennial estimates of the economic, racial, and social policy liberalism of the average Democrat and Republican in each state over the past six decades, we demonstrate a surprisingly close correspondence between mass and elite trends. Specifically, we find that: (1) ideological divergence between Democrats and Republicans has widened dramatically within each domain, just as it has in Congress; (2) ideological variation across senators’ partisan subconstituencies is now explained almost completely by party rather than state, closely tracking trends in the Senate; and (3) economic, racial, and social liberalism have become highly correlated across partisan subconstituencies, just as they have across members of Congress. Overall, our findings contradict the reigning consensus that polarization in Congress has proceeded much more rapidly and extensively than polarization in the mass public.  相似文献   
14.
15.
16.
17.
Intramyocardial small vessel abnormalities are not commonly recognized. The best known abnormality is fibromuscular dysplasia involving the sinoatrial or atrioventricular nodal arteries. Small vessel disease has been reported as an isolated cardiac anomaly in individuals with sudden death, and may also be associated with other cardiac conditions including hypertrophic cardiomyopathy and mitral valve prolapse. The nature of the association is unknown, and the mechanism causing sudden death is sometimes obscure. We describe pathological changes of the intramyocardial small vessels of three individuals with sudden death. Abnormalities involved small vessels at different levels. In all the cases, the abnormalities were thought to have caused or contributed to the individual's death. The possible mechanisms of this are discussed.  相似文献   
18.
19.
20.
But actually, he thought as he re–adjusted the Ministry of Plenty's figures, it was not even forgery. It was merely the substitution of one piece of nonsense for another. Most of the material that you were dealing with had no connexion with anything in the real world, not even the kind of connexion that is contained in a direct lie. Statistics were just as much a fantasy in their original version as in their rectified version.  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