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   496篇
  免费   17篇
各国政治   28篇
工人农民   23篇
世界政治   66篇
外交国际关系   37篇
法律   211篇
中国政治   4篇
政治理论   131篇
综合类   13篇
  2023年   2篇
  2021年   3篇
  2020年   8篇
  2019年   17篇
  2018年   11篇
  2017年   14篇
  2016年   20篇
  2015年   9篇
  2014年   12篇
  2013年   96篇
  2012年   16篇
  2011年   13篇
  2010年   13篇
  2009年   10篇
  2008年   26篇
  2007年   14篇
  2006年   19篇
  2005年   9篇
  2004年   19篇
  2003年   15篇
  2002年   12篇
  2001年   7篇
  2000年   11篇
  1999年   3篇
  1998年   10篇
  1997年   9篇
  1996年   5篇
  1995年   5篇
  1994年   9篇
  1993年   9篇
  1992年   5篇
  1991年   5篇
  1990年   3篇
  1989年   5篇
  1988年   2篇
  1987年   7篇
  1986年   4篇
  1985年   7篇
  1984年   7篇
  1983年   5篇
  1982年   5篇
  1981年   5篇
  1980年   6篇
  1978年   2篇
  1977年   3篇
  1975年   2篇
  1974年   2篇
  1973年   2篇
  1970年   2篇
  1968年   2篇
排序方式: 共有513条查询结果,搜索用时 15 毫秒
501.
502.
503.
The Department of Administrative Services of the Commonwealth government (DAS) was created in its present form as part of the July 1987 restructuring of Commonwealth departments. Functions came from nine hitherto separate departments, with the bulk of them transferring from Local Government and Administrative Services, Housing and Construction, and Science. The number of affected staff totalled 18,600: they were previously organised into 19 quite distinct groups with very little in common except that they were providing a service of some kind, predominantly to Commonwealth organisations.  相似文献   
504.
505.
New directions for pastoral development in Africa   总被引:1,自引:0,他引:1  
The last few years have seen a major rethinking of some of the hallowed assumptions of range ecology and range-management practice. The usefulness of terms such as ‘vegetation succession?s, ‘carrying capacity?s, and ‘desertification?s is being reassessed, particularly for the dry rangelands which are dominated by highly variable rainfall and episodic, chance events such as drought. This article examines the management and policy implications of this thinking for pastoral development in dryland areas. It briefly examines the consequences of environmental variability for pastoral development planning, range and fodder management, drought responses, livestock marketing, resource tenure, institutional development, and pastoral administration. By offering new directions for development workers, researchers, and policy planners, the article illustrates, in practical terms, a future for pastoral development in dryland Africa that recognises both the importance of pastoral livelihoods and the significance of environmental variability.  相似文献   
506.
507.
508.
509.
This article approaches Responsibility to Protect (R2P) from the ground up. Selecting African cases of mass atrocity in the age of R2P, it identifies key general features of contemporary violence. The article goes on to consider the nature and extent of R2P practice in each case. The argument is that R2P engagements in these conflicts display a mixture of weakness and irrelevance. The result of this is that R2P has failed significantly to reduce human suffering in any of the cases dealt with. The article notes that this clear failure does not seem to perturb the mainstream of academic R2P discourses, which, although critical at times, remain confident that R2P is making some difference and represents the best way forward. The article explores how this kind of discourse is propounded in the scholarly work on R2P. This leads us towards an argument that R2P as a discourse and international project can run in parallel with continuing mass suffering in African civil wars without being profoundly troubled.  相似文献   
510.
Pulmonary artery aneurysm and pulmonary artery dissection are rare antemortem diagnoses, most often associated with sudden death. These pathologic entities are strongly associated with chronic pulmonary hypertension due to structural cardiac defects, either congenital or acquired. We report the case of a 49-year-old woman who died suddenly due to dissection and rupture of a large pulmonary trunk aneurysm, with subsequent cardiac tamponade. Key historical and physical findings are described. Additionally, we present a discussion of the incidence, clinical presentation, pathogenesis, and pathologic diagnostic features of pulmonary artery dissection.  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