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   21549篇
  免费   702篇
  国内免费   5篇
各国政治   1089篇
工人农民   842篇
世界政治   1655篇
外交国际关系   879篇
法律   12650篇
中国共产党   6篇
中国政治   185篇
政治理论   4711篇
综合类   239篇
  2020年   281篇
  2019年   354篇
  2018年   440篇
  2017年   520篇
  2016年   535篇
  2015年   390篇
  2014年   434篇
  2013年   2360篇
  2012年   586篇
  2011年   624篇
  2010年   526篇
  2009年   529篇
  2008年   664篇
  2007年   766篇
  2006年   686篇
  2005年   618篇
  2004年   636篇
  2003年   651篇
  2002年   581篇
  2001年   763篇
  2000年   645篇
  1999年   560篇
  1998年   358篇
  1997年   258篇
  1996年   298篇
  1995年   241篇
  1994年   260篇
  1993年   270篇
  1992年   390篇
  1991年   437篇
  1990年   403篇
  1989年   345篇
  1988年   389篇
  1987年   350篇
  1986年   390篇
  1985年   324篇
  1984年   294篇
  1983年   284篇
  1982年   231篇
  1981年   233篇
  1980年   161篇
  1979年   212篇
  1978年   159篇
  1977年   145篇
  1976年   119篇
  1975年   149篇
  1974年   156篇
  1973年   133篇
  1972年   121篇
  1969年   110篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
891.
892.
893.
Abstract

Tract‐level data from the 1970, 1980, and 1990 censuses of population are used to identify poverty neighborhoods, extreme poverty neighborhoods, distressed neighborhoods, and severely distressed neighborhoods within the nation's 100 largest central cities. Changes in demographic and socioeconomic characteristics of these neighborhoods are documented, including racial/ethnic composition; poverty population concentration; school dropout rates; and rates of joblessness, single‐parent households, and welfare receipt.

Results show that despite some encouraging individual city turnarounds in the Northeast (especially in New York, Newark, and Philadelphia), urban poverty concentration and neighborhood distress worsened nationwide between 1980 and 1990. The greatest deterioration occurred in midwestern cities, particularly in Detroit. Southern cities, whose neighborhoods and cities typically improved during the 1970s, slipped during the 1980s; conditions in western cities also deteriorated. Blacks fared worse than whites and Hispanics during the 1980s in terms of increased concentration of poor in poverty tracts and distressed urban neighborhoods.  相似文献   
894.
895.
896.
897.
898.
A survey of public interest group leaders suggests some reasons why few third parties have chosen to advertise in recent elections. It indicates that public interest groups abstain from election advertising not because of the strictures of the Canada Elections Act but for other reasons, notably cost and fear of losing charitable status or of jeopardizing their access to and influence with officials. While the significance of these findings is limited by the scale of the survey, the results do raise tantalizing questions that warrant further research.  相似文献   
899.
By privileging the search for an overall order, both in its theorizing and in its aim, modern social theory has paid insufficient attention to the ‘zones’ of activity in between established institutions-called here the realm of civil society. This is an important neglect. For although the activity in such zones appears essentially disorderly, it permits many local and momentary orderings. Indeed, if one can speak of the ‘common sense’ of a social group at all, then it consists not only: 1) in the argumentative contesting of a whole range of not-as-yet wholly formulated visions of future ways of ‘going on’, but also in: 2) the provision of the historically developed socio-ontological resources required for their realization. Civil society thus contains the ‘seeds’ of future possibilities. Taking activity in this realm seriously means that our current task in social studies, is not the scientific one of discoveringan already existing order, but that of enabling the reinstitution of what, traditionally, was the task of rhetoric: to explicate, in a non-eliminative form of competition involving rival formulations, the implications of different accounts of the nature of our social lives together.  相似文献   
900.
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