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   742篇
  免费   23篇
各国政治   52篇
工人农民   38篇
世界政治   61篇
外交国际关系   36篇
法律   371篇
中国政治   6篇
政治理论   192篇
综合类   9篇
  2020年   4篇
  2019年   8篇
  2018年   14篇
  2017年   25篇
  2016年   14篇
  2015年   19篇
  2014年   8篇
  2013年   110篇
  2012年   21篇
  2011年   25篇
  2010年   15篇
  2009年   22篇
  2008年   18篇
  2007年   17篇
  2006年   23篇
  2005年   19篇
  2004年   18篇
  2003年   20篇
  2002年   19篇
  2001年   13篇
  2000年   8篇
  1999年   10篇
  1998年   9篇
  1997年   17篇
  1996年   10篇
  1995年   17篇
  1994年   14篇
  1993年   15篇
  1992年   12篇
  1991年   18篇
  1990年   4篇
  1989年   12篇
  1988年   12篇
  1987年   10篇
  1986年   18篇
  1985年   13篇
  1984年   18篇
  1983年   7篇
  1982年   13篇
  1981年   15篇
  1980年   15篇
  1979年   8篇
  1978年   7篇
  1977年   5篇
  1976年   10篇
  1975年   9篇
  1974年   6篇
  1973年   9篇
  1971年   2篇
  1967年   2篇
排序方式: 共有765条查询结果,搜索用时 8 毫秒
751.
752.
Senior government executives make many difficult decisions, but research suggests that individual cognitive limitations and the pathologies of “groupthink” impede their ability to make value‐maximizing choices. From this literature has emerged a normative model that Irving Janis calls “vigilant problem solving,” a process intended for the most complex decisions. To explore its use by senior public officials, the authors interviewed 20 heads of subcabinet‐level organizations in the U.S. federal government, asking how they made their most difficult decisions. The initial focus was on whether they employed a vigilant approach to making decisions that were informationally, technically, or politically complex. Most executives identified their single most‐difficult decision as one that required courage; they often made such courageous decisions after personal reflection and/or consultation with a small number of trusted advisors rather in ways that could be described as vigilant. The different approaches for making complex decisions, compared with those involving courage, are discussed and a contingency model of effective executive decision making is proposed that requires leaders (and their advisors) to be “ambidextrous” in their approach.  相似文献   
753.
This article focusses on the future of food in the UK in the context of Brexit. It examines the claims and promises made by Brexiteers before the referendum and juxtaposes these with the approach pursued by the Conservative‐led government since. The article argues that there is a clear dissonance between the two. This dissonance is the result of two important factors. First, the government is stuck in a non‐decision‐making mode, making it unable to pursue clear policies. Second, the food claims and promises made by Brexiteers are in opposition to what the vast majority of the public, food experts, farmers and food businesses want. Through exploring these two factors, and the Brexiteers’ claims and promises, the article explains what leaving the EU might mean for the future of food in the UK.  相似文献   
754.
Information controls are actions intended to deny, disrupt, monitor, or secure information for political ends. They can be implemented using a wide variety of technical and nontechnical means. Political contests over the control of information are heightened around important events, such as major anniversaries, armed conflicts, protests, and elections. In this paper, we offer a comparative case study of online censorship of the circumvention tool Psiphon during the Iranian elections in 2016 and 2013, drawing on unique access to analytics data from Psiphon. We find that the Iranian regime developed its censorship approach in two ways, deploying blocking that was more targeted and strategically timed in the more recent case. Evidence suggests that the regime relaxed censorship of Psiphon during the official campaign period for the 2016 election. The apparent objective of this new approach was to control access to information while minimizing the political consequences of doing so.  相似文献   
755.
756.
757.
758.
759.
China’s Future     
Ronald Torrance 《欧亚研究》2017,69(10):1666-1667
  相似文献   
760.
A 26‐year‐old Caucasian sailor, with no past medical history aside from headache for the last 1 week, was found dead in his cabin. The body was stored in a refrigerator on board and disembarked for autopsy 3 days later. Autopsy showed a large, nodular, necrotic and hemorrhagic retroperitoneal mass, and smaller hemorrhagic nodules in the brain, lungs, liver, and left kidney, with the brain being markedly edematous. Both testes were descended and normal. Histologically, the retroperitoneal mass showed a malignant mixed germ cell tumor comprising choriocarcinoma, embryonal carcinoma, and teratoma components. Retroperitoneal extragonadal germ cell tumors are uncommon, and this case of a young male who presented with headache and sudden death due to metastases is extremely rare.  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