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   485篇
  免费   28篇
各国政治   38篇
工人农民   31篇
世界政治   49篇
外交国际关系   37篇
法律   210篇
中国政治   1篇
政治理论   140篇
综合类   7篇
  2023年   2篇
  2022年   3篇
  2021年   5篇
  2020年   7篇
  2019年   12篇
  2018年   15篇
  2017年   23篇
  2016年   22篇
  2015年   27篇
  2014年   17篇
  2013年   82篇
  2012年   14篇
  2011年   26篇
  2010年   12篇
  2009年   30篇
  2008年   28篇
  2007年   26篇
  2006年   23篇
  2005年   20篇
  2004年   12篇
  2003年   13篇
  2002年   14篇
  2001年   7篇
  2000年   8篇
  1999年   4篇
  1998年   4篇
  1997年   8篇
  1996年   2篇
  1995年   2篇
  1992年   7篇
  1991年   2篇
  1990年   3篇
  1989年   3篇
  1988年   2篇
  1987年   1篇
  1986年   2篇
  1985年   3篇
  1984年   1篇
  1983年   2篇
  1982年   2篇
  1981年   2篇
  1980年   1篇
  1979年   2篇
  1978年   1篇
  1977年   4篇
  1975年   1篇
  1973年   1篇
  1971年   1篇
  1968年   1篇
  1966年   1篇
排序方式: 共有513条查询结果,搜索用时 140 毫秒
161.
Critics regarded the selection of urban empowerment zones and enterprise communities by Secretary Cisneros in 1994 as sympathetic to President Clinton's considerations. However, the secretary countered that cities were chosen based on their ability to revitalize their communities successfully, as outlined in their applications. To determine whether the secretary responded to top-down presidential preferences, data from the complete list of applications is used to test four hypotheses derived from principal—agent theory. The results of the logistic regression models do not validate the significance of the presidential variables (for instance, presidential support score for each city's congressional delegation, marginal districts, and 1992 state vote for President Clinton). Rather, many of the nonpresidential variables (community participation, size of the empowerment zone or enterprise community, and poverty) were significant in supporting the secretary's contention.  相似文献   
162.
163.
164.
165.
Marc A. Fried 《Society》1966,3(6):42-47
  相似文献   
166.
167.
ABSTRACT

This article draws from the concept of assemblages in order to examine the component parts of contemporary international interventions. It argues that in contrast mainstream analyses of statebuilding and peacebuilding, as well as more critical treatments that tie interventions to the concept of 'international order', the concept of assemblages offers a more compelling vantage point from which to examine the disparate lines of forces that make up modern-day interventions. The article proposes an exploration of some of the component parts that sustain the current assemblage of governance, security, and international intervention and draws our attention to their self-sustaining rationalities.  相似文献   
168.
As scientists are motivated by readership rather than by royalties, one might doubt that academic copyright is required for stimulating research. Consequently, establishing an open access regime is currently intensively being discussed. We contribute to the literature by using a contest-model in which differently talented researchers compete for limited journals space. The contest perspective adds a rent-seeking motive into the publishing game which questions that private incentives for research are always too low due to the positive externalities of scientific progress. In our model, open access always leads to higher social welfare when incentives are too high. When incentives are too low, then open access is only superior if the benefits from larger readership is sufficiently high.  相似文献   
169.
The Periodic Mobile Forensics (PMF) system investigates user behavior on mobile devices. It applies forensic techniques to an enterprise mobile infrastructure, utilizing an on‐device agent named TractorBeam. The agent collects changed storage locations for later acquisition, reconstruction, and analysis. TractorBeam provides its data to an enterprise infrastructure that consists of a cloud‐based queuing service, relational database, and analytical framework for running forensic processes. During a 3‐month experiment with Purdue University, TractorBeam was utilized in a simulated operational setting across 34 users to evaluate techniques to identify masquerading users (i.e., users other than the intended device user). The research team surmises that all masqueraders are undesirable to an enterprise, even when a masquerader lacks malicious intent. The PMF system reconstructed 821 forensic images, extracted one million audit events, and accurately detected masqueraders. Evaluation revealed that developed methods reduced storage requirements 50‐fold. This paper describes the PMF architecture, performance of TractorBeam throughout the protocol, and results of the masquerading user analysis.  相似文献   
170.
Drawing on the group threat perspective, this paper examines the perception of criminal threat from undocumented immigrants and its relation to both contextual measures of threat and public support for enhanced controls against undocumented immigrants. With data from a national telephone survey of non-Latino adults (N?=?1,364), we estimate the predictors of perceived criminal threat as well as the effects of perceived threat and other factors on immigration policy preferences. Results indicate that political ideology and education are the strongest predictors of perceived criminal threat. Perceived criminal threat has the greatest influence on support for more punitive controls and partially mediates the effects of race, education, political ideology, and contextual threat on these control preferences. Future social threat research should consider the inclusion of perceptual threat measures instead of relying solely on contextual indicators of threat. In addition, contextual threat should be explored more often in dynamic, rather than static, terms.  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