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   1074篇
  免费   38篇
各国政治   73篇
工人农民   76篇
世界政治   181篇
外交国际关系   62篇
法律   469篇
中国政治   54篇
政治理论   191篇
综合类   6篇
  2023年   6篇
  2022年   8篇
  2021年   10篇
  2020年   29篇
  2019年   29篇
  2018年   45篇
  2017年   41篇
  2016年   41篇
  2015年   25篇
  2014年   30篇
  2013年   166篇
  2012年   32篇
  2011年   29篇
  2010年   32篇
  2009年   30篇
  2008年   41篇
  2007年   43篇
  2006年   26篇
  2005年   33篇
  2004年   27篇
  2003年   29篇
  2002年   29篇
  2001年   13篇
  2000年   19篇
  1999年   16篇
  1998年   11篇
  1997年   9篇
  1996年   11篇
  1995年   17篇
  1994年   14篇
  1993年   11篇
  1992年   13篇
  1991年   13篇
  1990年   14篇
  1989年   11篇
  1988年   8篇
  1987年   13篇
  1986年   13篇
  1985年   15篇
  1984年   12篇
  1983年   12篇
  1982年   17篇
  1981年   7篇
  1980年   5篇
  1978年   5篇
  1977年   7篇
  1976年   10篇
  1975年   5篇
  1972年   4篇
  1968年   4篇
排序方式: 共有1112条查询结果,搜索用时 15 毫秒
11.
12.
13.
Health care financing has undergone numerous structural changes over the years. Change continues while extreme growth seriously affects the health care focus. The author examines the multiclass system and health financing trends. Restructuring techniques are also discussed.  相似文献   
14.
This paper examines the process by which R&D results funded by the Office of Conservation and Renewable Energy (CE) of the US Department of Energy (DOE) have generated commercial applications. It looks at examples of technology-transfer procedures and activitees across three of CE's component offices that correspond to the major energy end-use sectors: transportation, buildings, and industry. On the surface, the conservation programs would appear to have little strategic consistency and, therefore, lack the clear leadership many seek in a technology-transfer program. However, as an alternative to strategic consistency, one may tailor the technology-transfer approach of each program to its unique circumstances. This paper presents case studies of such tailoring, in which the diversity of approaches mirrors the complexity of the energy end-use markets and the private-public interests that must be negotiated to successfully commercialize energy-saving innovations. The paper discusses the lessons learned about the conditions requiring adaptive design and the structures and practices that have been proven effective.  相似文献   
15.
This paper describes some of the spinoff benefits that can result from R&D projects, and categorizes them in terms of the dimensions of market and technical newness. These dimensions are discussed with reference to two types of spinoffs: 1) alternative market applications, when the results of an R&D project are subsequently applied to a market or use that differs from the originally intended application, and 2) second-generation technologies, when the technology that was the subject of an R&D project is significantly altered or enhanced in unanticipated ways through subsequent R&D. Examples from the Department of Energy's Energy-Related Inventions Program are integrated into the results of literature review to illustrate key concepts, including core technologies, degrees of market and technology newness, technology robustness, and the nature of connections linking spinoffs to prior R&D investments. The paper concludes by discussing spinoffs as a managerial strategy.  相似文献   
16.
17.
18.
Until new statutes and court decisions clarify the law applicable to outcomes research, providers will continue to face new questions. In the meantime, paying careful attention to satisfying the requirements of existing laws protecting peer review information will put providers in the best position to minimize their exposure. Providers should review their current outcomes measurement and management systems to ensure that (1) they are structured to take full advantage of the confidentiality protections available under state law, and (2) appropriate access to outcomes data for those who need it is clearly provided for in the relevant documentation.  相似文献   
19.
20.
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