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   990篇
  免费   54篇
各国政治   88篇
工人农民   32篇
世界政治   77篇
外交国际关系   101篇
法律   400篇
中国政治   7篇
政治理论   332篇
综合类   7篇
  2023年   3篇
  2022年   6篇
  2021年   19篇
  2020年   35篇
  2019年   35篇
  2018年   37篇
  2017年   50篇
  2016年   44篇
  2015年   43篇
  2014年   36篇
  2013年   177篇
  2012年   31篇
  2011年   47篇
  2010年   20篇
  2009年   33篇
  2008年   31篇
  2007年   42篇
  2006年   35篇
  2005年   28篇
  2004年   24篇
  2003年   30篇
  2002年   41篇
  2001年   15篇
  2000年   20篇
  1999年   15篇
  1998年   17篇
  1997年   17篇
  1996年   12篇
  1995年   4篇
  1994年   15篇
  1993年   9篇
  1992年   8篇
  1991年   6篇
  1990年   9篇
  1989年   6篇
  1988年   3篇
  1987年   3篇
  1986年   5篇
  1985年   4篇
  1984年   4篇
  1983年   4篇
  1982年   2篇
  1981年   3篇
  1980年   3篇
  1978年   2篇
  1977年   2篇
  1976年   4篇
  1974年   1篇
  1973年   1篇
  1965年   1篇
排序方式: 共有1044条查询结果,搜索用时 0 毫秒
931.
932.
933.
934.
Trust funds are a particular way of governing resource flows. Governments use trust funds to bind policy decisions of future actors and remove resource flows from budget competition. The state of Alaska removed a portion of its oil revenues from political competition through the creation of the Alaska Permanent Fund. A unique feature of the Fund is that it pays annual dividends to Alaskan citizens, thus creating a citizen stake in the management of the Fund. Through this framework Alaskans have successfully protected a significant stream of revenue ($21 billion) from political demands.  相似文献   
935.

This study measures patterns following a terrorist attack, from the perspective of market efficiency, to determine the communicative impact of terrorist attacks on the financial marketplace. The Efficient Market Hypothesis postulates that asset prices fully reflect all available information. An important implication is that, because market price changes are determined by new information (or variations in discount rates), it would be highly difficult to “beat the market” with expert stock selection or market timing. Overall, we found that, based on mixed results, terrorist attacks do not lead to a distinguishable pattern in the financial marketplace. Nevertheless, drawing on the Yale Model of Persuasion, these results suggest that terrorists are effective in their communicative goals, and they do lead to a compelling pattern in the proportion of negative returns on the day of the attack. More precisely, terrorists are able to communicate their message on a global scale, thereby resulting in investors adjusting their estimates of value downward. While a possible price correction pattern was found, the lack of statistical analysis performed on the variables, to a certain degree of significance, is a limitation of this study that ultimately renders the results of the study inconclusive.

  相似文献   
936.
As indigenous movements around the world seek to strengthen their collective voice in their respective political systems, efforts continue to design political institutions that offer both sufficient local autonomy and incentives to participate in the broader political system. The state of Oaxaca, Mexico, offers a test case of one such effort at indigenous‐based institutional design. This article argues that such reforms often fail to confront the tension between local autonomy and citizen engagement in politics outside the borders of the community. Testing this theory through a comparative analysis of voter turnout rates in municipalities across the state of Oaxaca and the neighboring state of Guerrero, this study finds that the adoption of indigenous institutions at the local level is associated with significantly lower voter turnout rates for national elections.  相似文献   
937.
This study examined protective and risky companionship and locations for exposure to community violence among African American young adolescents living in high crime, urban areas. The Experience Sampling Method (ESM), an in vivo data collection method, was employed to gather information from 233 students (62% female) over 3 years, beginning in the 6th grade. Questionnaire variables of exposure to community violence were regressed onto ESM companionship and location variables, cross-sectionally and longitudinally, separately for boys and girls. At different points, time spent with parents, in school, and outside in private space was associated with less exposure to violence for boys and girls, while time spent with girls was protective for boys. In addition, time spent outside in public and with older peers was associated with increased risk for boys and girls. These findings are discussed in relation to previous and potential future research, and to strategies to prevent exposure to community violence.  相似文献   
938.
939.
Duct tape is sometimes recovered as physical evidence in crimes. The purpose of this study was to determine the quality of latent prints on the adhesive and non-adhesive surfaces of duct tape samples that were separated using three methods. Three hundred donor fingerprint impressions were deposited on duct tape. Sections of duct tape were affixed to sections of cardboard and a fingerprint placed on the non-adhesive surface of the tape. A second layer of duct tape was prepared and a fingerprint placed on the adhesive side of the tape and then the tape was affixed to the piece of tape on the cardboard. After a 24-h period, the samples were separated using gradual force, liquid nitrogen applied with a cryogun and an adhesive neutralizer to separate the layers of tape. The recovered fingerprints were processed with a fingerprint powder suspension method. The recovered fingerprint images were evaluated and rated as +1, +2, or +3. The liquid nitrogen spray separation method yielded the highest number of +3 prints.  相似文献   
940.
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