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   8185篇
  免费   0篇
各国政治   199篇
工人农民   1068篇
世界政治   167篇
外交国际关系   278篇
法律   4635篇
政治理论   1838篇
  2018年   1270篇
  2017年   1196篇
  2016年   1009篇
  2015年   56篇
  2014年   12篇
  2013年   10篇
  2012年   181篇
  2011年   911篇
  2010年   1011篇
  2009年   577篇
  2008年   728篇
  2007年   686篇
  2006年   1篇
  2005年   58篇
  2004年   166篇
  2003年   137篇
  2002年   26篇
  2001年   1篇
  2000年   6篇
  1999年   2篇
  1998年   12篇
  1997年   12篇
  1996年   19篇
  1995年   28篇
  1994年   22篇
  1993年   2篇
  1991年   1篇
  1987年   1篇
  1985年   1篇
  1984年   9篇
  1983年   8篇
  1982年   5篇
  1979年   5篇
  1978年   7篇
  1977年   9篇
排序方式: 共有8185条查询结果,搜索用时 15 毫秒
961.
962.
963.
964.
965.
966.
967.
968.
969.
US State governments invest in early-stage innovative activity as an economic development strategy. Nevertheless, attention directed at the public sector’s role in this capacity has been placed on federal policy actions overlooking the growing role of states. The primary aims of this paper are two-fold: (1) to articulate the motivations for multilevel public support for small business innovative activity, placing emphasis on state level incentives directed towards entrepreneurial activity; and (2) to empirically evaluate the State Match Phase I (SMP-I) program. The SMP-I program is a diffuse state level policy designed to complement the federal Small Business Innovation Research (SBIR) program by offering noncompetitive matching funds to the state’s successful SBIR Phase I recipients. This offers an opportunity to examine the marginal impact of public R&D given the state intervention. This paper employs a state and year fixed effects model and considers two outcome variables—SBIR Phase II success rates and SBIR Phase I application activity. To account for industrial heterogeneity, the data are stratified by the federal mission agencies. Results from the empirical analysis indicate that the state match increases the Phase II success rates for firms participating in the National Science Foundation SBIR program.  相似文献   
970.
A major challenge to the Doctrine of Double Effect (DDE) is the concern that an agent’s intention can be identified in such a fine-grained way as to eliminate an intention to harm from a putative example of an intended harm, and yet, the resulting case appears to be a case of impermissibility. This is the so-called “closeness problem.” Many people believe that one can address the closeness problem by adopting Warren Quinn’s version of the DDE, call it DDE*, which distinguishes between harmful direct agency and harmful indirect agency. In this paper, I first argue that Quinn’s DDE* is just as vulnerable to the closeness problem as the DDE is. Second, some might think that what we should therefore do is give up on intentions altogether and move towards some kind of non-state-of-mind, victim-based deontology. I shall argue against this move and explain why intentions are indispensable to an adequate nonconsequentialist theory. Finally, I shall propose a new way of answering the closeness problem.  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