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   22873篇
  免费   895篇
各国政治   998篇
工人农民   843篇
世界政治   1834篇
外交国际关系   783篇
法律   14218篇
中国共产党   2篇
中国政治   106篇
政治理论   4779篇
综合类   205篇
  2020年   343篇
  2019年   389篇
  2018年   477篇
  2017年   560篇
  2016年   589篇
  2015年   456篇
  2014年   493篇
  2013年   2309篇
  2012年   531篇
  2011年   570篇
  2010年   510篇
  2009年   566篇
  2008年   572篇
  2007年   592篇
  2006年   572篇
  2005年   522篇
  2004年   540篇
  2003年   530篇
  2002年   489篇
  2001年   900篇
  2000年   808篇
  1999年   682篇
  1998年   363篇
  1997年   300篇
  1996年   267篇
  1995年   274篇
  1994年   314篇
  1993年   294篇
  1992年   455篇
  1991年   484篇
  1990年   435篇
  1989年   469篇
  1988年   415篇
  1987年   452篇
  1986年   434篇
  1985年   443篇
  1984年   368篇
  1983年   403篇
  1982年   320篇
  1981年   303篇
  1980年   223篇
  1979年   335篇
  1978年   231篇
  1977年   191篇
  1976年   175篇
  1975年   161篇
  1974年   182篇
  1973年   162篇
  1972年   147篇
  1971年   121篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
211.
212.
This paper compares the Medicare prospective payment system (PPS) to four all-payer rate-setting systems that operated under HCFA waiver authority. The study examines the experience of Medicare, Medicaid, and commercial insurers under the two approaches. Data from several American Hospital Association surveys and from Medicaid 2082 report forms are analyzed. The paper concludes that the all-payer waiver programs have been as successful as PPS in controlling the rate of growth in Medicare costs. In addition, Medicaid programs are more successful in controlling their outlays in all-payer rate-setting environments than when they "go alone." Finally, there is no evidence to suggest that hospitals can increase charges in response to greater financial need under either PPS or the state waivers. Nevertheless, it appears that commercial insurers are better able to compete with Blue Cross plans in all-payer rate-setting states than elsewhere.  相似文献   
213.
214.
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   
215.
216.
"The authors attempt to present some empirical findings regarding a phenomenon which they chose to call the 'transition in migratory patterns'.... The general hypothesis states that: changes in migratory patterns are due to an interaction between those economic, political and social processes which affect the distribution of the population; and that this interaction is also highly influenced by macroeconomic politics--an arena where technology plays a dominant role." Data are for Guadalajara and the state of Jalisco in Mexico. (SUMMARY IN ENG)  相似文献   
217.
Drug trade is widely seen as a phenomenon rather new to the Netherlands. However, at the beginning of the 20th century the Dutch pharmaceutical industries were already extensively involved in the production of both opiates and cocaine, and they went on exporting large quantities of these drugs after the Opium Act (1919) took force. Until the 1960s, arrests were not at all common, and these largely affected minority groups like Chinese opium smokers and black marijuana users. Since then, drug control efforts have increased by leaps and bounds. At first, cannabis was the main target; then the focus turned to heroin, and that was later joined by cocaine. This paper traces the history of the drug trade and drug control in the Netherlands, with emphasis on their development in Amsterdam. The conclusion is reached that, in spite of drastic changes in both drug trade and drug control, certain ideologies, constructs and strategies have remained remarkably stable.  相似文献   
218.
219.
220.
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