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   852篇
  免费   42篇
各国政治   74篇
工人农民   127篇
世界政治   67篇
外交国际关系   36篇
法律   344篇
中国政治   8篇
政治理论   235篇
综合类   3篇
  2023年   2篇
  2022年   3篇
  2020年   14篇
  2019年   26篇
  2018年   34篇
  2017年   40篇
  2016年   25篇
  2015年   23篇
  2014年   39篇
  2013年   137篇
  2012年   26篇
  2011年   39篇
  2010年   15篇
  2009年   23篇
  2008年   37篇
  2007年   35篇
  2006年   44篇
  2005年   36篇
  2004年   41篇
  2003年   34篇
  2002年   38篇
  2001年   9篇
  2000年   10篇
  1999年   12篇
  1998年   10篇
  1997年   10篇
  1996年   8篇
  1995年   7篇
  1994年   14篇
  1993年   10篇
  1992年   9篇
  1991年   8篇
  1990年   5篇
  1989年   6篇
  1988年   4篇
  1987年   9篇
  1986年   4篇
  1985年   10篇
  1984年   5篇
  1983年   5篇
  1982年   3篇
  1981年   3篇
  1980年   5篇
  1979年   3篇
  1977年   3篇
  1975年   2篇
  1974年   2篇
  1970年   1篇
  1968年   1篇
  1956年   1篇
排序方式: 共有894条查询结果,搜索用时 15 毫秒
41.
We conducted a short-term longitudinal study examining the structure of coping behavior and the relationship between coping style and depression during adolescence. The sample consisted of 603 adolescents in Grades 6–11 who were surveyed in the fall of 1989 and again in the fall of 1990. A two-dimensional model of coping was found using confirmatory factor analysis with the factors being approach and avoidant coping. Four cross-sectional and seven longitudinal coping groups were formed to explore group differences in depression. Approach copers reported the fewest symptoms of depression, while avoidant copers reported the most. Subjects who changed over time from approach to avoidant coping evidenced a significant increase in depressive symptoms, whereas subjects who switched from avoidant to approach coping displayed a significant decrease in depression over a one-year period. These findings imply that adolescents who are able to elicit social support, engage in problem solving, and cognitively restructure events within a positive light are more likely to successfully negotiate the challenges of adolescence.This research was supported by a grant from the William T. Grant Foundation (8912789), Anne C. Petersen, Principal Investigator. The writing of this article was supported by the National Institute of Mental Health Research Training Grant 5 T32MH18387-06 in Child Mental Health/Primary Prevention.Received Ph.D. in Human Development and Family Studies from Pennsylvania State University. Research interests include adolescent mental health and community research.Received his Ph.D. in Human Development and Family Studies from Pennsylvania State University. Research interests include adolescent mental health and research methodology.Received degree from the University of Chicago. Research interests are in biopsychosocial development in adolescence, with a focus on sex differences in mental health.  相似文献   
42.
43.
Given that government budgets are increasingly stretched in the face of competing demands, there is a pressing need for evidence on the costs and benefits of public sector investments. Nowhere is this need greater than in the health field, where the benefits of programmes are typically difficult to measure. Within the health sector a key area of interest is primary health care, which is generally regarded as a central function and the most important means by which the health of the population can be improved. This paper reports the results of a recent survey of Commonwealth countries which sought to establish the extent of economic evaluation of PHC programmes, the impact on decision-making and the level of health economics expertise available in Third World countries. Based on the results of the survey, suggestions are made for improving the commissioning and conduct of economic evaluations, for interpreting and implementing evaluation results, and for developing government expertise in economic evaluation.  相似文献   
44.
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   
45.
46.
This study examines the correlation between family variables and delinquency (both self-reported and official) in a small sample of British teenage girls. Factor analysis of the 72-item Home Life Questionnaire (from T. H. Hirschi [1969] Causes of Delinquency, University of California Press, Berkeley) revealed a clear four-factor structure of caring and communication, discipline, pressure and mother-daughter closeness, which cumulatively accounted for 31% of the variance. Multiple regression of these factors onto self-reported delinquency indicated the maternal factor to be most powerful, explaining 25% of the variance in self-reported delinquency. Institutionalized and noninstitutionalized girls showed only chance differences in terms of the quality of their home life.Anne Campbell's research interests are in sex differences in antisocial behavior, especially aggression.  相似文献   
47.
48.
Editor's Note     
Anne Joyce 《中东政策》2006,13(4):iii-iv
  相似文献   
49.
50.
Terrorism     
Rathbone  Anne  Rowley  Charles K. 《Public Choice》2002,111(1-2):1-10
  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