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   5390篇
  免费   251篇
各国政治   377篇
工人农民   189篇
世界政治   580篇
外交国际关系   418篇
法律   2365篇
中国政治   48篇
政治理论   1605篇
综合类   59篇
  2023年   39篇
  2022年   19篇
  2021年   41篇
  2020年   87篇
  2019年   114篇
  2018年   198篇
  2017年   196篇
  2016年   251篇
  2015年   141篇
  2014年   156篇
  2013年   874篇
  2012年   179篇
  2011年   176篇
  2010年   148篇
  2009年   154篇
  2008年   201篇
  2007年   239篇
  2006年   210篇
  2005年   189篇
  2004年   193篇
  2003年   161篇
  2002年   162篇
  2001年   103篇
  2000年   97篇
  1999年   106篇
  1998年   83篇
  1997年   87篇
  1996年   71篇
  1995年   63篇
  1994年   70篇
  1993年   77篇
  1992年   66篇
  1991年   62篇
  1990年   62篇
  1989年   52篇
  1988年   62篇
  1987年   40篇
  1986年   49篇
  1985年   38篇
  1984年   39篇
  1983年   30篇
  1982年   28篇
  1981年   31篇
  1980年   18篇
  1979年   19篇
  1978年   20篇
  1977年   16篇
  1976年   14篇
  1975年   14篇
  1974年   30篇
排序方式: 共有5641条查询结果,搜索用时 62 毫秒
261.
To what extent are Russian state agencies involved in predatory behavior, and what are the determinants of their activities? Analyzing a novel data-set comprising 312 cases of illegal corporate raiding (reyderstvo) between 1999 and 2010, this article identifies a shift both in the regional and sectoral distribution of raids over time, as well as an increasing participation of state agencies in criminal raiding attacks. Using panel regression analysis to look at the determinants of increasing state involvement, this article shows that election results for the ruling president and his party, as well as the degree to which elections are manipulated throughout Russia's regions, are significantly and positively correlated with the number of raids in a given region, while regions with governors that have stronger local ties are characterized by a smaller number of attacks. A potential interpretation of these findings is that the federal center may tolerate a certain degree of predatory activities by regional elites, as long as these elites are able to deliver a sufficiently high level of electoral support for the center, with the effect being weaker in regions where the governor is interested in the long-term development of the regional economy.  相似文献   
262.
263.
Sipping alcohol during childhood may be a marker of differentiation as regards children’s future risk of underage drinking; yet very little is known about alcohol use when it occurs among elementary school-aged children. The purpose of the present study is to examine alcohol sipping behavior in a sample of third-grade school children to learn whether sipping is associated with attributes that could increase children’s likelihood of further underage drinking. We collected telephone interview data from 1,050 mothers and their third grade children (mean age 9.2 years; 48.2 % male) residing in the Southeastern United States. The majority of mothers were White non-Hispanic (69.02 %) or Black non-Hispanic (21.3 %); most (85 %) lived in households shared with fathers or other adult caretakers. We hypothesized that children who sip alcohol would score lower than abstinent peers on indicators of competence and score higher on indicators of exposure to alcohol-specific socialization by parents and peers. A multivariate model controlling for frequency of parent alcohol use and demographic covariates showed that children who had sipped alcohol were significantly less likely than abstinent peers to affirm indicators of competence and significantly more likely to affirm indicators of exposure to alcohol specific socialization by parents and by same age peers. These preliminary findings suggest that developmental attributes associated with risk of underage drinking begin to differentiate at least as young as middle childhood. Research is needed to test prospectively for continuity between alcohol risk attributes present in middle childhood and future alcohol use.  相似文献   
264.
265.
266.
267.
268.
269.
270.
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