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   956篇
  免费   41篇
各国政治   61篇
工人农民   30篇
世界政治   81篇
外交国际关系   83篇
法律   420篇
中国政治   5篇
政治理论   307篇
综合类   10篇
  2023年   4篇
  2020年   11篇
  2019年   16篇
  2018年   21篇
  2017年   31篇
  2016年   26篇
  2015年   15篇
  2014年   16篇
  2013年   158篇
  2012年   20篇
  2011年   25篇
  2010年   29篇
  2009年   32篇
  2008年   24篇
  2007年   29篇
  2006年   33篇
  2005年   33篇
  2004年   29篇
  2003年   27篇
  2002年   30篇
  2001年   26篇
  2000年   15篇
  1999年   22篇
  1998年   25篇
  1997年   12篇
  1996年   15篇
  1995年   11篇
  1994年   14篇
  1993年   11篇
  1992年   26篇
  1991年   17篇
  1990年   11篇
  1989年   9篇
  1988年   18篇
  1987年   16篇
  1986年   23篇
  1985年   15篇
  1984年   8篇
  1983年   10篇
  1982年   13篇
  1981年   7篇
  1980年   6篇
  1979年   12篇
  1978年   5篇
  1977年   10篇
  1976年   6篇
  1975年   3篇
  1974年   7篇
  1973年   4篇
  1966年   2篇
排序方式: 共有997条查询结果,搜索用时 15 毫秒
241.
In a previous paper published in 1996, the author gave two views of development management. One was management in the context of development as historical change. The other was the management of deliberate efforts at progress, of development tasks. This paper adds a third: a style of management with a development orientation, that is, an orientation towards progressive change. It is argued that this third view allows for a normative definition of development management. Thus a distinctive notion of what is good development management is that it should consistently promote the values of development at all levels, even if this is not the most straightforward way of getting particular development tasks done successfully.  相似文献   
242.
High levels of non-authentic sequence data can be generated by traditional PCR-based methodologies when DNA is damaged, template numbers are small and/or the target amplification size too large. We therefore present an alternate methodology based on single primer extension (SPEX) amplification; that places no pre-defined size constraints on amplification and interacts with only one of the DNA strands at the target locus.  相似文献   
243.
244.
245.
246.
247.
Abstract

Postwar changes in the metropolitan settlement structure have profoundly altered the geography of opportunity in the older cities of the Northeast and Midwest. Poverty is concentrated in once‐central cities, while employment continues to deconcentrate to the suburbs. In the face of these changes, antipoverty policy has become a geographic exercise of moving people and resources from certain places to other places.

The three main strategies for confronting inner‐city poverty are dispersal, development, and mobility. These strategies are discussed and compared, with particular emphasis on the mobility approach. The article argues that the mobility approach—which connects poor inner‐city residents to suburban employment opportunities without changing the location of households or firms—is the most promising near‐term strategy for combating urban poverty.  相似文献   
248.
We examined the geographic concentration and persistence of terrorism using the Global Terrorism Database (GTD). The GTD logs all terrorist incidents worldwide using open-source media, and, for 1970–2013, includes over 125,000 incidents from over 200 countries and territories. We examined regional and country-level data; different terrorism forms, severity levels, and timeframes (entire period, five-year periods, and annual); and multiple definitions of “elevated” terrorism. The findings reveal that terrorism is concentrated geographically and temporally. Most countries experience peace or very low levels of terrorism; only a few experience substantial outbreaks; very few experience prolonged terrorism; and even fewer, prolonged severe terrorism.  相似文献   
249.
Policy analysis is an amorphous, multi-disciplinary, adademic pursuit in search of a professional focus. This discussion surveys the parameters of this pursuit and outlines the basic ingredients of a professional perspective. Argument is made for a multi-faceted, yet integrative approach which appreciates both the rational and trans-rational elements of public policy and which is anchored in a mixture of technical expertise and public regardedness.  相似文献   
250.
France has had a long history of struggle with various forms of terrorism and over the past decade has achieved particular success against Algerian Islamic terrorist groups – the GIA and GSPC – with close links to Al-Qaeda. This article reviews France's experience of terrorism since the end of the Second World War and details the evolving state responses to these challenges and the sophisticated anti-terrorist apparatus that now serves the French state. It then considers the role of France in the post-11 September ‘war on terrorism’ and argues that France remains in the front-line of the struggle against Al-Qaeda and that the French experience has much to contribute to the international war against Islamic terrorism.  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