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   500篇
  免费   48篇
  2023年   3篇
  2022年   1篇
  2021年   2篇
  2020年   15篇
  2019年   15篇
  2018年   25篇
  2017年   37篇
  2016年   35篇
  2015年   18篇
  2014年   23篇
  2013年   136篇
  2012年   13篇
  2011年   22篇
  2010年   23篇
  2009年   17篇
  2008年   16篇
  2007年   20篇
  2006年   11篇
  2005年   9篇
  2004年   7篇
  2003年   15篇
  2002年   10篇
  2001年   8篇
  2000年   9篇
  1999年   6篇
  1998年   7篇
  1997年   10篇
  1996年   2篇
  1995年   4篇
  1994年   2篇
  1993年   2篇
  1992年   2篇
  1991年   3篇
  1990年   2篇
  1989年   4篇
  1988年   3篇
  1986年   3篇
  1985年   2篇
  1983年   1篇
  1980年   1篇
  1978年   1篇
  1976年   2篇
  1967年   1篇
排序方式: 共有548条查询结果,搜索用时 187 毫秒
101.
102.
The United States has adopted a policy of geological disposal to resolve the problem of permanent disposition of highly radioactive spent nuclear fuel (SNF), but has been unable to implement this policy. This study draws upon literature on policymaking and interest group representation to examine that inability. It develops and explores a conceptualization of policy stalemate to analyze the case.
The study finds that the United States has arrived at a stalemate over SNF disposal policy in part because of its pluralist system of interest group representation, and in part because of the nature of the problem. The case demonstrates how, in a pluralist system, the interaction of interests over a complex and difficult policy problem can result in stalemate. Few of the involved interest groups have sufficient incentives to either implement current SNF disposal policy or to revisit the policy. Barring significant change in the nature of the problem, the balance of interests, or other factors in the policy environment, the stalemate will continue.
The central question of this symposium is how institutionalized systems of interest group representation manage competing demands for environmental protection with demands for energy. In the case of SNF disposal, the United States in effect is managing these competing demands by not addressing them. SNF disposal policy does not appear to pose directly the expected tradeoff between demands for environmental protection and accessible energy, as the conflict tends to be defined primarily in environmental terms. However, the trade-off is implicit; failure to resolve the problem will eventually impact continued access to nuclear energy.  相似文献   
103.
Reflecting on 5 years of experience in an ongoing partnership between the University of Massachusetts and the Pskov region in Russia, this paper analyses the process of introducing Western style planning in a provincial region in Russia at the post-Soviet era. After describing the region, the participants, and some changes undergoing in Russia, the key elements of the project, its accomplishments and some problems encountered are reported. The distinguishing characteristics of this project are its attempt at a unified approach that combines academic, consulting and public policy elements, and its success as a partnership in which Americans and Russians together attempt to find the best way to introduce Western style planning in a country moving from a centralized to a free market economy.  相似文献   
104.
105.
106.
This editorial takes to task a statement on humanitarianism by Valerie Amos, UN Under‐Secretary‐General for Humanitarian Affairs and Emergency Relief Coordinator, which seems to gloss over issues to do with staff selection and management policies, but especially the work of veteran anthropologists in the field of development and alternative perspectives on humanitarianism.  相似文献   
107.
108.
109.
110.
Geomorphic systems are characterized by numerous, complex interrelationships between system components, and by processes and controls which may operate over different spatial scales. Factors operating at any given spatial scale can be viewed as an abstracted subset of all relationships operating at all scales. The theory that relationships which operate over spatial scales an order of magnitude different are effectively independent of each other is formally stated in terms of abstracted systems. An example is given to illustrate the use of spatial statistics to determine what constitutes a significant spatial scale difference in controls over hydraulic geometry of a desert wash.  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