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   11647篇
  免费   416篇
各国政治   392篇
工人农民   537篇
世界政治   750篇
外交国际关系   448篇
法律   7195篇
中国共产党   35篇
中国政治   144篇
政治理论   2399篇
综合类   163篇
  2023年   61篇
  2021年   75篇
  2020年   192篇
  2019年   189篇
  2018年   272篇
  2017年   320篇
  2016年   349篇
  2015年   275篇
  2014年   299篇
  2013年   1063篇
  2012年   299篇
  2011年   341篇
  2010年   265篇
  2009年   342篇
  2008年   396篇
  2007年   402篇
  2006年   381篇
  2005年   348篇
  2004年   342篇
  2003年   278篇
  2002年   279篇
  2001年   384篇
  2000年   353篇
  1999年   275篇
  1998年   172篇
  1997年   130篇
  1996年   151篇
  1995年   139篇
  1994年   135篇
  1993年   139篇
  1992年   212篇
  1991年   258篇
  1990年   222篇
  1989年   206篇
  1988年   228篇
  1987年   206篇
  1986年   231篇
  1985年   198篇
  1984年   169篇
  1983年   159篇
  1982年   108篇
  1981年   127篇
  1980年   104篇
  1979年   105篇
  1978年   91篇
  1977年   79篇
  1976年   66篇
  1975年   64篇
  1974年   66篇
  1973年   81篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
951.
A new 40-item behavioral checklist, the Adolescent Life Assessment Checklist (ALAC), was devised to be used with patient and nonpatient samples. A comparable form obtains information from a parent or guardian. Responses of 356 adolescents from three sources were analyzed for differences attributable to race, sex, age, sample source, and their interactions. A factor analysis was carried out on the average within-race-sex-source subgroup correlation matrix, resulting in seven meaningful and six usable oblique factors. Subscales were developed and corrections were computed to remove estimated differences due to race, sex, and age. Corrected scales significantly differentiate the three samples.This study was supported in part by MCHS Grant No. MC-R-390201, the Adolescent Clinic Foundation, and USPHSMH Fellowship Grant No. 0597921.Received her Ph.D. in psychology from Washington University, St. Louis; received a Foundations Fund for Research in Psychiatry interdisciplinary research-teaching grant, 1959–1965. Current research interests include test development, evaluation, and personality research.Received her M.D. from Medical College of Georgia at Augusta; her medical internship was at Michael Reese Hospital, Chicago, Illinois. Current research interests include stress, coping, and adaptation in children and adolescents.She is a licensed psychologist with the State of Ohio, with an M.A. from the University of Cincinnati. Current research interests include verbal behavior, psychotherapeutic efficacy, and dream research.Received his M.D. from College of Medicine, University of Cincinnati; his medical internship was with Boston City Hospital, and he is the founder of the Adolescent Clinic, Cincinnati General Hospital. Current research interests include growth and development and medical/social problems at adolescence.  相似文献   
952.
This study was an attempt to isolate and identify some important variables related to conservation knowledge and interest in high school age youth. The major goal of this study was to establish some basic variable groups that could provide additional meaning and direction for reintroducing an integrated conservation program into the secondary school curriculum through a more appealing instructional approach. Findings indicated that the assumption of a direct relationship between knowledge and interest does not necessarily hold. Findings also contradict popular assumptions regarding rural-urban, male-female, and age differences in levels of conservation knowledge and interest. Open-ended program approaches based on the variables identified could lead to improved methods for increasing conservation knowledge and interest.Received his M.S. in forestry from Virginia Polytechnic Institute and State University. Major interest is natural resource education.Received his Ph.D. in education from The Pennsylvania State University. Major interests are recreation education and natural resource education.  相似文献   
953.
954.
955.
Attitudes toward racialized and redistributive policies like welfare are often thought of as a function of both principled ideological positions and the underlying racial attitudes a person holds. Kinder and Sanders (1996) look at racial resentment as one explanation, while Sniderman and his colleagues look to principled conservatism and authoritarianism as viable alternatives, claiming that racial resentment is merely proxying a legitimate race‐neutral commitment to equality of opportunity. This article engages this debate through an experimental design which tests whether “hard work” is rewarded in a color‐blind manner. The experimental design also affords scholars the opportunity to separate the effects of the two components of racial resentment: principled values and racial animus. The results show that American norms and implicit racism serve to uniquely privilege whites in a variety of ways.  相似文献   
956.
957.
958.
959.
The relationship between subjective invulnerability and optimism bias in risk appraisal, and their comparative association with indices of risk activity, substance use and college adjustment problems was assessed in a sample of 350 (M age = 20.17; 73% female; 93% White/European American) emerging adults. Subjective invulnerability was measured with the newly devised adolescent invulnerability scale (AIS). Optimism bias in decision-making was assessed with a standard comparative-conditional risk appraisal task. Results showed that the danger- and psychological invulnerability subscales of the AIS demonstrated strong internal consistency and evidence of predictive validity. Subjective invulnerability and optimism bias were also shown to be empirically distinct constructs with differential ability to predict risk and adjustment. Danger invulnerability and psychological invulnerability were more pervasively associated with risk behavior than was optimism bias; and psychological invulnerability counter-indicated depression, self-esteem and interpersonal problems. Results support recent claims regarding the “two faces” of adolescent invulnerability. Implications for future research are drawn.  相似文献   
960.
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