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   17501篇
  免费   481篇
各国政治   730篇
工人农民   687篇
世界政治   1473篇
外交国际关系   630篇
法律   10402篇
中国共产党   2篇
中国政治   86篇
政治理论   3795篇
综合类   177篇
  2021年   99篇
  2020年   231篇
  2019年   274篇
  2018年   358篇
  2017年   423篇
  2016年   440篇
  2015年   306篇
  2014年   355篇
  2013年   1731篇
  2012年   423篇
  2011年   442篇
  2010年   352篇
  2009年   384篇
  2008年   455篇
  2007年   480篇
  2006年   451篇
  2005年   399篇
  2004年   408篇
  2003年   417篇
  2002年   383篇
  2001年   680篇
  2000年   621篇
  1999年   507篇
  1998年   287篇
  1997年   244篇
  1996年   205篇
  1995年   208篇
  1994年   245篇
  1993年   219篇
  1992年   337篇
  1991年   368篇
  1990年   328篇
  1989年   345篇
  1988年   315篇
  1987年   333篇
  1986年   338篇
  1985年   332篇
  1984年   286篇
  1983年   322篇
  1982年   257篇
  1981年   239篇
  1980年   179篇
  1979年   249篇
  1978年   166篇
  1977年   146篇
  1976年   134篇
  1975年   123篇
  1974年   136篇
  1973年   119篇
  1972年   112篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
981.
982.
983.
A study of the recollections of childhood of a 12-year-old girl is placed in the context of developmental perceptions of time. Specifically, the transition from wishful to more realistic perceptions of the future is discussed, along with the growing capacity of the older child to incorporate experiences of the past into the present. The role of time perception in the formation of identity is presented from the perspective of psychological maturation and the growing comprehension of social roles and personal competence.In order to preserve confidentiality, I have used a fictitious name for a real family. In addition, the family has granted permission to publish this paper.Received B. A. from Harvard University and M.A. and Ph.D. from the University of Chicago in the Department of Sociology. Interests lie in the areas of social theory, poverty, psychotherapy, youth and adolescence, and perceptions of time.  相似文献   
984.
Pregnancy among adolescents, and especially among low-income adolescents, represents a high-risk situation from multiple points of view. When compared to data for the population at large, obstetrical outcome is worsened, subsequent educational attainment is poor, social prognosis is guarded, and repeat unwanted pregnancies are common. The surviving infants, similarly have relatively high incidences of medical and developmental problems. In recent years, comprehensive interdisciplinary programs have been organized to offer more meaningful help to these individuals. The present report describes the authors' 5-year experience with one early intensive program. Considerable medical, educational, and social successes have been noted. The results are especially striking when contrasted with the authors' current experience with an improving but still more fragmented and less successful program. Findings concerning infant development and the mother-infant interaction are also noted. Finally, issues related to the achievement of successes and the persistence of problems after provision of more adequate comprehensive services are discussed.This study was supported in part by Grant No. 03-H-000-079-03-0, Maternal and Child Health Service, H.S.M.H.A., H.E.W.While on the faculty of the State University of New York, College of Medicine at Syracuse, was a founder and the first medical director of the YMED program.Specialty is Developmental Psychology, and research interests concern infant and early child development and the effects of children on parents. While on the faculty of Cornell University, served as a consultant to the YMED program.Project director of the high-risk program.While on the faculty of the State University of New York, College of Medicine at Syracuse, was obstetrical director of the YMED program.  相似文献   
985.
The study consisted of two parts. First, a new scale of interpersonal trust for adolescents was constructed using a representative sample of 70 students from a community high school. Second, the hypothesis was tested that disaffected youth compared to the more conventional would show less interpersonal trust. Two matched groups of 57 students each were employed for the second part of the study. Results indicate that the new scale is a reliable and valid measure. Correlates of the scale disclose that trust is associated with interpersonal distance, certain developmental factors, and the quality of parent-adolescent relations. Results from the second part of the study tend to confirm the hypothesis in that greater trust scores were found among students with more conventional beliefs.This study was partly supported by NIMH Grant No. MH9210, Ford Foundation Grant No. 69-0264B, and the Jessie and C. Clement Stone Foundation.Received his Ph.D. from the University of Kansas. Currently working on personality and clinical problems of adolescents and adults.Recieved his Ph.D. from the University of Michigan. Plans to continue his work of program development in the area of affect education in secondary schools.Received his Ph.D. from Harvard University. Current work is in the area of community mental health.  相似文献   
986.
987.
988.
Modeling Duration Dependence   总被引:1,自引:1,他引:0  
As applications of duration analysis have burgeoned in politicalscience, scholars have become increasingly aware of the potentialsubstantive importance of duration dependence: the extent towhich the conditional hazards of the events of interest arerising or falling over time. Here I discuss the issue of durationdependence, focusing on the distinction between "spurious" dependencedue to unobserved heterogeneity and "true" duration dependencedue to state dependence in the process of interest. I presenta simple extension of a commonly used parametric duration model—theWeibull model—which allows researchers to assess the influenceof causal variables on the nature and extent of duration dependencein their data. I then illustrate the application of this "generalizedWeibull" model using data on the duration of international alliances.  相似文献   
989.
The persistence of self-identified conservative Democrats in the electorate is puzzling. Both the ongoing Southern realignment and the recent ideological polarization should have resulted in conservative Democrats changing their party identification to accord with their discrepant ideology. Instead, the number of conservative Democrats, as a percentage of the total electorate, has held steady over the last 20 years. I propose an explanation for this phenomenon that draws upon theories of mass belief systems, as well as an element of recent political reality: the popular stigmatization of the word liberal. I argue that Democrats who are susceptible to elite cues garner positive affect toward the conservative label and negative affect toward the liberal label. They then identify themselves accordingly, regardless of their issue positions.  相似文献   
990.
Feminist ideas and domestic violence policy change   总被引:1,自引:0,他引:1  
  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