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   18888篇
  免费   601篇
各国政治   868篇
工人农民   715篇
世界政治   1611篇
外交国际关系   731篇
法律   11005篇
中国共产党   2篇
中国政治   98篇
政治理论   4259篇
综合类   200篇
  2021年   99篇
  2020年   243篇
  2019年   307篇
  2018年   382篇
  2017年   460篇
  2016年   499篇
  2015年   338篇
  2014年   404篇
  2013年   1999篇
  2012年   458篇
  2011年   477篇
  2010年   400篇
  2009年   438篇
  2008年   510篇
  2007年   535篇
  2006年   514篇
  2005年   463篇
  2004年   445篇
  2003年   490篇
  2002年   444篇
  2001年   709篇
  2000年   661篇
  1999年   539篇
  1998年   332篇
  1997年   271篇
  1996年   235篇
  1995年   234篇
  1994年   268篇
  1993年   232篇
  1992年   357篇
  1991年   378篇
  1990年   345篇
  1989年   354篇
  1988年   337篇
  1987年   348篇
  1986年   343篇
  1985年   335篇
  1984年   295篇
  1983年   324篇
  1982年   262篇
  1981年   244篇
  1980年   183篇
  1979年   256篇
  1978年   170篇
  1977年   153篇
  1976年   132篇
  1975年   123篇
  1974年   137篇
  1973年   118篇
  1972年   112篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
181.
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   
182.
183.
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   
184.
185.
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   
186.
187.
188.
This paper finds that the relatively favorable standing of Ronald Reagan in the preelection polls helped to generate a bandwagon effect in the 1980 presidential election. The models tested here suggest that this effect was most pronounced among voters who had the weakest prior political opinions and hence were most susceptible to suggestion through the media. While the bandwagon effect that is generated is modest, after controlling for an array of other political biases, it is substantial enough to warrant further attention as the dissemination of poll results becomes an increasingly attractive news event.  相似文献   
189.
"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   
190.
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   
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