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   6153篇
  免费   236篇
各国政治   249篇
工人农民   268篇
世界政治   465篇
外交国际关系   317篇
法律   3764篇
中国共产党   1篇
中国政治   39篇
政治理论   1241篇
综合类   45篇
  2023年   54篇
  2022年   28篇
  2021年   41篇
  2020年   102篇
  2019年   137篇
  2018年   168篇
  2017年   169篇
  2016年   179篇
  2015年   120篇
  2014年   164篇
  2013年   637篇
  2012年   178篇
  2011年   195篇
  2010年   142篇
  2009年   183篇
  2008年   175篇
  2007年   168篇
  2006年   169篇
  2005年   131篇
  2004年   150篇
  2003年   146篇
  2002年   126篇
  2001年   239篇
  2000年   235篇
  1999年   165篇
  1998年   78篇
  1997年   77篇
  1996年   64篇
  1995年   75篇
  1994年   64篇
  1993年   66篇
  1992年   129篇
  1991年   115篇
  1990年   142篇
  1989年   131篇
  1988年   143篇
  1987年   134篇
  1986年   112篇
  1985年   111篇
  1984年   84篇
  1983年   73篇
  1982年   57篇
  1981年   51篇
  1980年   43篇
  1979年   53篇
  1978年   38篇
  1976年   32篇
  1975年   28篇
  1974年   40篇
  1973年   32篇
排序方式: 共有6389条查询结果,搜索用时 46 毫秒
61.
A study of the various stressors faced by interns serving as security assistants at the Tenth Pan American Games and the coping mechanisms they utilized was undertaken during the months of July and August 1987. This study revealed that group development can be altered and maladaptive behavior can result among students experiencing high degrees of stress, frustration, and feelings of helplessness, who are subject to a leadership void. The data strongly support the need for planners of similar large-scale internship programs to consider group processes, organizational factors, and interpersonal relations if organizational goals are to be achieved, maladaptive coping mechanisms are to be avoided, and student stress is to be lessened.  相似文献   
62.
63.
64.
Telecommunications regulation has experienced a fundamentalshift from rate regulation to increased reliance on compelledaccess, perhaps best exemplified by the Telecommunications Actof 1996's imposition of no fewer than four new access requirements.Unfortunately, each access requirement is governed by a separateset of rules for determining both the scope and the price ofaccess. The resulting ad hoc regime has created difficult definitionalproblems and opportunities for regulatory arbitrage. In thisarticle we propose a system inspired by the discipline of mathematicsknown as graph theory that integrates all of the different formsof access into a single analytical framework. This system separatesdifferent access regimes into five categories: (1) retail access,(2) wholesale access, (3) interconnection access, (4) platformaccess, and (5) unbundled access. It also provides insightsinto how each type of access complicates the already difficultproblems of network configuration and management and introducesinefficient biases into decisions about network capacity anddesign. The approach we propose also provides insights intothe transaction cost implications of the different types ofaccess. Drawing on the Coasean theory of the firm, our approachexamines the tradeoffs between internal governance costs andthe external transaction costs of providing access to offera theory of network boundaries. This framework shows how accessregulation distorts networks' natural boundaries and providesa basis for evaluating whether private ordering through marketswould lead to more efficient network design.  相似文献   
65.
This report assesses the effects on peripheral oxygen saturation and heart rate that positional restraint induces when a person is prone, handcuffed, and "hog-tied." Peripheral oxygen saturation and heart rate were monitored at rest, during exercise, and during recovery from exercise for 10 adult subjects. The effects of positional restraint produced a mean recovery time that was significantly prolonged. Consequently, the physiological effects produced by positional restraint should be recognized in deaths where such measures are used.  相似文献   
66.
This Article analyzes the development and complexities of the antitrust state action doctrine and the Local Government Antitrust Act as these doctrines apply to both "municipalities" and private entities. The restructuring of a public hospital is used as a model to facilitate the antitrust analysis. The restructuring model, which typically involves the leasing of a hospital facility by a public entity to a private nonprofit corporation, offers the unique opportunity to compare the different standards employed under the state action doctrine and the Local Government Antitrust Act. As a practical matter, the Article provides a framework for a public hospital to evaluate the impact of corporate restructuring on its antitrust liability exposure and to develop strategies to minimize antitrust risks.  相似文献   
67.
68.
69.
Book reviews     
Turkey in the Middle East By Philip Robins. Pinter for the Royal Institute of international Affairs. 1991.130 pp. £22.50. ISBNO 86187 198 7. PBk £8.95. ISBN 0 86187 1995.

Hitler Slept Late and other blunders that cost him the war By James P. Duffy. London: Praeger. 1991.176pp. £17.50.

Alliance within the alliance: Franco‐German Military Cooperation and the European Pillar of Defense By David G. Haglund. Boulder: Westview Press, 1991. 213 pp.

Homeward Bound? Allied Forces in the New Germany Edited by David G. Haglund and Olaf Mager. Boulder: Westview Press, 1992. 299 pp. £24.95

Avoiding War: Problems of crisis management By Alexander L. George (ed.), Westview Press, 1991. 590 pp. £16.95.

The Future of NATO: Facing an Unreliable Enemy in an Uncertain Environment By S.N. Drew et al. Praeger Publishers, New York, 1991. pp. 206.

Parliament and international relations Edited by Charles Carstairs and Richard Ware. Milton Keynes: Open University Press, 1991. 195 pp. £12.99 (paperback)  相似文献   

70.
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