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   4535篇
  免费   158篇
各国政治   321篇
工人农民   179篇
世界政治   424篇
外交国际关系   293篇
法律   1860篇
中国政治   34篇
政治理论   1478篇
综合类   104篇
  2022年   15篇
  2021年   35篇
  2020年   71篇
  2019年   88篇
  2018年   150篇
  2017年   137篇
  2016年   152篇
  2015年   97篇
  2014年   136篇
  2013年   694篇
  2012年   146篇
  2011年   149篇
  2010年   112篇
  2009年   124篇
  2008年   141篇
  2007年   181篇
  2006年   124篇
  2005年   140篇
  2004年   142篇
  2003年   115篇
  2002年   124篇
  2001年   95篇
  2000年   117篇
  1999年   87篇
  1998年   70篇
  1997年   80篇
  1996年   68篇
  1995年   67篇
  1994年   60篇
  1993年   54篇
  1992年   60篇
  1991年   66篇
  1990年   66篇
  1989年   61篇
  1988年   52篇
  1987年   43篇
  1986年   40篇
  1985年   46篇
  1984年   45篇
  1983年   40篇
  1982年   50篇
  1981年   58篇
  1980年   48篇
  1979年   32篇
  1978年   26篇
  1977年   23篇
  1976年   18篇
  1975年   23篇
  1974年   20篇
  1973年   16篇
排序方式: 共有4693条查询结果,搜索用时 15 毫秒
41.
The United States today faces a loss of influence as a world power, a reduction in American independence as a policymaker, and a decline in the standard of living on which Americans have come to depend. History teaches that nations weaker and less productive than the United States can rise to become economic powerhouses and rapidly increase their standards of living. History also teaches that nations failing to recognize their fundamental problems will inevitably decline. American politicians must face what is abundantly clear: the United States is losing ground and must act quickly to reverse its course. This White Paper outlines what must be done. Information about the nation's current status must be analyzed and communicated. Incentives to improve the level of competence in government must be provided and maintained. The emphasis of government policy must be changed to reflect broad economic and technological interests as opposed to special interests. Savings must be encouraged and increased. Infrastructure must be improved Tax laws must be modified to help bring these changes about. Economic and technological issues must be elevated to the importance they require. American thinking must reflect the new realities: that the age of leadership through military power is over, that the requirements for success in the world of the 1990s and beyond require a sound and growing economy that is internationally competitive. The US can accomplish these goals only through foundation-shaking, comprehensive, fundamental changealong the lines we propose herein.This paper is the executive summary (with minor editing modifications) of a white paper that is available from Cornell University's Johnson Graduate School of Management.  相似文献   
42.
43.
44.
45.
46.
The Healthcare Educational and Research Foundation (HERF) in Minneapolis undertook a two-year research project to study the effects of health maintenance organizations (HMOs) and competition on the hospital industry in Minneapolis/St. Paul. This article summarizes HERF's major findings surrounding three key questions: (1) do the HMOs in Minneapolis/St. Paul use fewer hospital resources relative to conventional payers?; (2) do recent overall community trends in inpatient use suggest evidence of hospital utilization-reducing effects attributable to HMOs?; and (3) given the highly visible competitive process among Minneapolis/St. Paul providers, do hospital cost and revenue data suggest any evidence of cost-containment? The findings (based on data through 1982) indicate that for comparable patients, Twin Cities HMOs appear to use fewer medical care resources per hospitalized patient. There was, however, no clear evidence of community-wide, utilization-reducing effects directly attributable to the "competitive effect" of HMO introduction and development in the market. In addition, there was no empirical evidence that HMOs (which had enrolled 25 percent of the consumer market by 1982), or other large buyers of inpatient services, have selected hospitals on the basis of price as hypothesized by competition advocates.  相似文献   
47.
48.
49.
50.
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