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   1943篇
  免费   118篇
各国政治   146篇
工人农民   192篇
世界政治   228篇
外交国际关系   120篇
法律   1030篇
中国政治   8篇
政治理论   333篇
综合类   4篇
  2023年   22篇
  2022年   20篇
  2021年   43篇
  2020年   78篇
  2019年   89篇
  2018年   125篇
  2017年   118篇
  2016年   113篇
  2015年   68篇
  2014年   91篇
  2013年   327篇
  2012年   90篇
  2011年   76篇
  2010年   41篇
  2009年   54篇
  2008年   68篇
  2007年   69篇
  2006年   53篇
  2005年   54篇
  2004年   52篇
  2003年   54篇
  2002年   53篇
  2001年   37篇
  2000年   41篇
  1999年   19篇
  1998年   12篇
  1997年   9篇
  1996年   13篇
  1995年   15篇
  1994年   11篇
  1993年   17篇
  1992年   13篇
  1991年   8篇
  1990年   9篇
  1989年   5篇
  1988年   10篇
  1987年   8篇
  1986年   7篇
  1985年   7篇
  1984年   3篇
  1982年   7篇
  1980年   4篇
  1979年   8篇
  1978年   6篇
  1977年   3篇
  1973年   8篇
  1972年   2篇
  1971年   7篇
  1965年   4篇
  1963年   2篇
排序方式: 共有2061条查询结果,搜索用时 31 毫秒
11.
12.
This study investigated the impact of the abolition of the tender years doctrine on custody decisions in divorce cases. This doctrine supported the presumption that the mother is the more suitable parent for young children. In March of 1981, the Supreme Court of the State of Alabama found this doctrine to be unconstitutional. To assess the hypothesis that this ruling had a significant effect on custodyrelated decisions, a sample of court records for divorce cases in an Alabama county was examined as representative of the state on a number of key variables. Overall, no significant differences were found on indicator variables for the comparisons before and after the ruling. There was neither an increase in custody grants to fathers nor an increase in custody requests by fathers.  相似文献   
13.
14.
The authors compared the effects of alcoholic drinks rich in fusel oil with the effects of diluted pure alcohol of the same quantity on 19 clinically healthy university students. The investigations utilized EEG and physiopsychic testing methods. The clinical symptoms were observed both under the effect of drinks and in a crapulous state ("hang-over"). It was found that alcoholic drinks rich in fusel oil can produce a more deviating EEG curve, an increased worsening of physiopsychic performance and of clinical and subjective symptoms. The necessity of regular quality control of alcoholic beverages is pointed out.  相似文献   
15.
16.
In comparative analysis of welfare states, there is a consensus that mature welfare state systems have been confronted, for some considerable time, with substantial pressure towards re-structuring and that, as a result, they actually have undertaken several and varied modifications. This articles aims at exploring and analysing these developments in Austria and Germany from a comparative point of view. The analysis concentrates on two vital fields of social policy: old-age insurance and unemployment insurance. Especially in respect of the development of social policy and regarding important characteristics of the two welfare state systems, both countries traditionally show a large degree of resemblance to each other. Many similarities remained to exist during the phase of growing pressures on the welfare state, whereas at the same time it is evident that differences between the two countries increased. The respective actual developments will be interpreted in the light of corresponding theories of comparative welfare state research and classified as gradual and structural changes.  相似文献   
17.
Factors related to risky drinking and driving/riding decisions were explored by presenting vignettes to 135 older adolescents, 17–24 years of age, with vignettes related to drinking and other social behaviors engaged in at a party. Analyses revealed that alcohol-related behaviors, attitudes toward the acceptability of drinking and driving, and previous drinking and driving/riding experiences were all significant predictors of decisions about driving or riding while intoxicated. Indeed, the overall model accounted for 46% of risky drinking and driving/riding decisions. As predicted, older respondents had more previous experiences with driving while intoxicated and riding with intoxicated drivers than did younger respondents, and they reported that drinking and driving was more acceptable among their peers. However, contrary to expectations, there were no differences in the number of risky decisions made by the two age groups or between males and females. The importance of previous experiences is discussed.  相似文献   
18.
Hayes  Kathy J.  Razzolini  Laura  Ross  Leola B. 《Public Choice》1998,94(1-2):1-20
Local governments' allocation decisions are modeled in the context of a slack maximizing bureaucrat who produces public goods according to a production function that includes both provision and the constituents' socio-economic characteristics. To gain a better understanding of the determinants of slack, comparative statics and an empirical study of Illinois municipalities are conducted. The indirect output distance function provides efficiency scores upon which we regress several variables, representing socio-economic characteristics, costs and competition measures. We find that slack or inefficient behavior is associated with richer communities, lower education levels and a lack of competition for residents among municipalities.  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