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   158篇
  免费   2篇
各国政治   7篇
工人农民   17篇
世界政治   15篇
外交国际关系   6篇
法律   64篇
中国政治   1篇
政治理论   48篇
综合类   2篇
  2023年   1篇
  2022年   2篇
  2021年   1篇
  2020年   3篇
  2019年   5篇
  2018年   2篇
  2017年   4篇
  2016年   3篇
  2015年   6篇
  2014年   4篇
  2013年   24篇
  2011年   5篇
  2010年   3篇
  2009年   3篇
  2008年   4篇
  2007年   9篇
  2006年   8篇
  2005年   2篇
  2004年   3篇
  2003年   3篇
  2002年   2篇
  2001年   6篇
  2000年   5篇
  1999年   4篇
  1998年   5篇
  1996年   1篇
  1995年   2篇
  1994年   1篇
  1993年   2篇
  1992年   1篇
  1991年   3篇
  1990年   1篇
  1989年   2篇
  1987年   2篇
  1986年   2篇
  1985年   1篇
  1984年   2篇
  1983年   5篇
  1981年   2篇
  1980年   4篇
  1979年   3篇
  1978年   1篇
  1976年   1篇
  1973年   1篇
  1972年   1篇
  1969年   1篇
  1968年   2篇
  1967年   1篇
  1966年   1篇
排序方式: 共有160条查询结果,搜索用时 468 毫秒
101.
102.
103.
Modern governments must increase their capacity for analysing and evaluating public programmes. Evaluations, however, take place in a political context and many policies have unstated political goals. Sweden appears to have a highly developed evaluation and effectiveness auditing system and the Swedish case is instructive, not only because of its experience in the evaluation field, but also because it illustrates the changing policy style. Two main agencies are involved in the evaluation process and they both experience some difficulties in their evaluation studies. These difficulties stem in part from the political environment in which they both operate but also relate to their own organisational styles. The resource squeeze could bring broad environmental charges which could be conducive to a greater influence for the two agencies.  相似文献   
104.
Sudden, unexpected death due to "pineal apoplexy"   总被引:2,自引:0,他引:2  
A 20-year-old woman had a minute vascular malformation in the wall of a glial cyst of the pineal body. Bleeding into the cyst lumen caused rapid expansion of the pineal body, resulting in compression of the midbrain and her sudden, unexpected death.  相似文献   
105.
106.
This article describes an exercise that simulates one of the most famous of all human management problems: the “tragedy of the commons.” Coined by Garret Hardin in 1968, the term refers to any situation in which people acting rationally to meet their individual interests wind up depleting a shared resource to the detriment of all participants. Because these patterns arise in many real‐world situations — from global warming and natural resource management to free‐rider problems in markets and organizations — this exercise may interest a broad range of negotiation scholars, teachers, and practitioners. The Chocolate Conundrum is a simple exercise that uses candy to demonstrate the tension between individual and collective interests that arises in all social dilemmas. Because these dynamics also arise in many real situations, the exercise can be a powerful teaching tool for instructors in management, public policy, sociology, economics, and many other social science disciplines. Unlike some other simulations of collective action problems, this exercise is simple to administer, requires no computation or tallying of results, and works with a broad range of audiences and group sizes.  相似文献   
107.
Previous research has reported substantial levels of nostalgia for the Soviet era among citizens of some of the independent republics that emerged from its collapse. We report new analyses from eight former Soviet republics, and from two surveys, in 2001 and 2010, comparing attitudes to government in the Soviet period and at the time of the surveys, as well as expectations for the future. Everywhere, views of the past have become less positive and those of the present more positive. However, both the views in each survey and the change between each of them vary among countries and socio-demographic groups.  相似文献   
108.
109.
A PCR-based heteroduplex assay was used to determine the presence and composition of Bacillus species in 11,059 Environmental Protection Agency PM2.5 aerosol samples from 11 U.S. cities. The assay differentiated three groups: Type A containing Bacillus anthracis and very closely related, often pathogenic, Bacillus cereus and Bacillus thuringiensis strains; Type B containing other B. cereus and B. thuringiensis strains; and a third group of more-distantly related Bacillus species. Eight of the 11 cities were positive for Bacillus species in 50% or more of the samples, and the percent of aerosol samples that contained the HD Type A group ranged from 3% to 32%. Cities from the eastern half of the United States generally contained a higher frequency and broader diversity of Bacillus species than the western half of the United States. Positive samples were detected throughout the year. These results have implications for pathogen detection in environmental samples, understanding the natural evolution of new pathogenic strains, and incidence of infection caused by strains of the B. cereus subgroup.  相似文献   
110.
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