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   317篇
  免费   9篇
各国政治   22篇
工人农民   10篇
世界政治   29篇
外交国际关系   12篇
法律   95篇
中国政治   2篇
政治理论   148篇
综合类   8篇
  2020年   6篇
  2018年   8篇
  2017年   8篇
  2016年   10篇
  2015年   5篇
  2014年   4篇
  2013年   35篇
  2012年   5篇
  2011年   4篇
  2009年   5篇
  2008年   9篇
  2007年   8篇
  2006年   7篇
  2005年   4篇
  2004年   7篇
  2003年   9篇
  2002年   12篇
  2001年   5篇
  2000年   10篇
  1999年   3篇
  1998年   8篇
  1997年   4篇
  1996年   7篇
  1994年   7篇
  1993年   5篇
  1992年   10篇
  1991年   7篇
  1990年   10篇
  1989年   7篇
  1988年   5篇
  1986年   4篇
  1985年   5篇
  1984年   7篇
  1983年   2篇
  1982年   4篇
  1981年   7篇
  1980年   3篇
  1979年   6篇
  1978年   7篇
  1977年   4篇
  1976年   2篇
  1975年   2篇
  1974年   6篇
  1973年   6篇
  1972年   3篇
  1970年   2篇
  1969年   3篇
  1968年   3篇
  1967年   3篇
  1966年   3篇
排序方式: 共有326条查询结果,搜索用时 15 毫秒
21.
22.
In order to examine the relationships among social network structure, types of social support, and determinants of support satisfaction, an alternative method was used to score the Social Support Questionnaire (SSQ). Factor analysis procedures suggested that college students' (N=198) social networks consisted of four groups: nuclear family, other family, friends, and others. Satisfaction with support was positively related to the proportion of the network occupied by nuclear family and negatively related to the proportion of friends in the network. Evidence was found for the presence of both support specialists and support generalists in the networks of the college students. These results are discussed from a developmental perspective with attention to the implications for interventions.  相似文献   
23.
24.
An earlier version of this essay was delivered at the Public Choice Society Meeting, Tucson AZ, 27–29 March 1987. Our thanks to Laura Langbein, Steve Maser, Eugenia Froedge-Toma, and Gordon Tullock for helpful comments. Special thanks to George Racette.  相似文献   
25.
Guterl F 《Newsweek》2002,140(2):50-51
  相似文献   
26.
27.
The U.S. Bureau of Mines was established in 1910 to reduce the high accident rate in the nation's coal mines. For 85 years, it conducted a wide variety of tasks related to mining before it was abolished in 1995. The BOM had many technology transfer successes in its lifetime, including more than a dozen R&D100 awards. This essay identifies and discusses five transfer factors that can explain the success (or failure) of many Bureau of Mines projects. These five factors are termed pressure, pitfalls, path, price, and profit.  相似文献   
28.
29.
30.
An integrative, ecological model developed by Belsky (1980) implies that to understand child abuse researchers must examine factors at four levels: the individual, the family, the environment, and the culture. This study compared abusive and nonabusive parents at three of these four levels. At the individual level, abusers were found to have lower self-esteem than controls. Also, male abusers were likely to be relatively impulsive and hostile. At the level of the family, abusers described their children as more troublesome than control parents, but they did not perceive them as developmentally delayed. At the level of the environment, abusers identified more intense life stressors than nonabusers. Results of this investigation supported Belsky's argument that child abuse involved multiple factors and levels.  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