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   20375篇
  免费   1341篇
各国政治   992篇
工人农民   920篇
世界政治   1339篇
外交国际关系   733篇
法律   13723篇
中国共产党   9篇
中国政治   124篇
政治理论   3754篇
综合类   122篇
  2023年   96篇
  2022年   85篇
  2021年   124篇
  2020年   509篇
  2019年   532篇
  2018年   703篇
  2017年   734篇
  2016年   812篇
  2015年   607篇
  2014年   623篇
  2013年   2135篇
  2012年   612篇
  2011年   620篇
  2010年   636篇
  2009年   683篇
  2008年   653篇
  2007年   666篇
  2006年   653篇
  2005年   539篇
  2004年   538篇
  2003年   436篇
  2002年   500篇
  2001年   742篇
  2000年   656篇
  1999年   520篇
  1998年   275篇
  1997年   195篇
  1996年   215篇
  1995年   215篇
  1994年   192篇
  1993年   190篇
  1992年   325篇
  1991年   339篇
  1990年   318篇
  1989年   298篇
  1988年   323篇
  1987年   277篇
  1986年   339篇
  1985年   342篇
  1984年   260篇
  1983年   239篇
  1982年   192篇
  1981年   172篇
  1980年   157篇
  1979年   232篇
  1978年   124篇
  1977年   98篇
  1975年   96篇
  1974年   128篇
  1972年   83篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
901.
902.
903.
904.
905.
906.
This article introduces to policy studies the concept of valence, which we define as the emotional quality of an idea that makes it more or less attractive. We argue that valence explains why some ideas are more successful than others, sometimes gaining paradigmatic status. A policy idea is attractive when its valence matches the mood of a target population. Skilled policy entrepreneurs use ideas with high valence to frame policy issues and generate support for their policy proposals. The usefulness of the concept of valence is illustrated with the case of sustainability, an idea that has expanded from the realm of environmental policy to dominate discussions in such diverse policy areas as pension reform, public finance, labor markets, and energy security. As the valence of sustainability has increased, policy entrepreneurs have used the idea to reframe problems in these various policy areas and promote reforms.  相似文献   
907.
This article examines the history of political science in relation to the history of the prison. It considers how theories of the state in political science have assumed that proper states should punish with prisons, and traces these ideas to the work of Francis Lieber, the first academic political scientist in the USA. Because his ideas about prison reform were central to his conceptualization of the discipline as a science of punishment, his theory of the state is an understudied part of the history of mass incarceration. Lieber argued that the state had a moral duty to punish its citizens with the prison, and an obligation to manage the risks of democracy through the prison's principles of scientific certainty, less eligibility, and disciplinary solitude. By examining the life and work of Francis Lieber, this article offers new ways of thinking about political science's past, and its status as part of the history of the American prison.  相似文献   
908.
Abstract

A simulation model that mirrors the actual practices of lenders in setting qualification requirements for mortgage loans is used to assess the impact of permanent buydowns and buyups on the maximum sale price that buyers can afford. Buydowns are reductions in the coupon rate traded off against higher discount points; buyups are the reverse. Although buydowns have little effect on afford ability, buyups can have significant effects. Their potential is largely unrealized, however, because of the call risk to lenders of loans carrying premiums. The authors propose a “discount recovery” provision, which would be similar to a prepayment penalty except that the payment upon prepayment would be tied to the amount of the discount foregone by the lender. This would protect lenders against call risk, giving them every reason to offer buyups as a way of expanding demand.  相似文献   
909.
910.
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