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   20173篇
  免费   1328篇
各国政治   919篇
工人农民   928篇
世界政治   1426篇
外交国际关系   727篇
法律   13276篇
中国共产党   2篇
中国政治   121篇
政治理论   3942篇
综合类   160篇
  2023年   86篇
  2021年   108篇
  2020年   470篇
  2019年   502篇
  2018年   662篇
  2017年   659篇
  2016年   762篇
  2015年   561篇
  2014年   598篇
  2013年   2236篇
  2012年   571篇
  2011年   595篇
  2010年   603篇
  2009年   635篇
  2008年   596篇
  2007年   617篇
  2006年   595篇
  2005年   531篇
  2004年   518篇
  2003年   429篇
  2002年   486篇
  2001年   750篇
  2000年   682篇
  1999年   539篇
  1998年   286篇
  1997年   223篇
  1996年   240篇
  1995年   233篇
  1994年   212篇
  1993年   210篇
  1992年   349篇
  1991年   358篇
  1990年   335篇
  1989年   313篇
  1988年   338篇
  1987年   282篇
  1986年   342篇
  1985年   342篇
  1984年   272篇
  1983年   249篇
  1982年   204篇
  1981年   201篇
  1980年   179篇
  1979年   232篇
  1978年   124篇
  1977年   101篇
  1975年   107篇
  1974年   133篇
  1973年   87篇
  1972年   82篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
Why Bell Matters     
  相似文献   
942.
Engagement in school is crucial for academic success and school completion. Surprisingly little research has focused on the relationship between student engagement and delinquency. This study examines whether engagement predicts subsequent school and general misconduct among 4,890 inner-city Chicago elementary school students (mean age: 11 years and 4 months; 43.3% boys; 66.5% black; 28.8% Latino). To improve upon prior research in this area, we distinguish three types of engagement (emotional, behavioral, and cognitive), examine whether the relationship between engagement and misconduct is bidirectional (misconduct also impairs engagement), and control for possible common causes of low engagement and misconduct, including peer and family relationships and relatively stable indicators of risk-proneness. Emotional and behavioral engagement predict decreases in school and general delinquency. However, cognitive engagement is associated with increases in these outcomes. School and general delinquency predict decreased engagement only in the cognitive domain. Suggestions for future research and implications for policy are discussed.  相似文献   
943.
944.
945.
Open My Heart     
T. M. McNally 《耶鲁评论》2001,89(2):131-149
  相似文献   
946.
947.
948.
Editorial     
Ohne Zusammenfassung  相似文献   
949.
Three thousand, three hundred and ninety-five families, whose child attended one of 80 different day or resident summer camps for at least one week, completed customized questionnaires that measured growth from precamp to postcamp in four domains: Positive Identity, Social Skills, Physical & Thinking Skills, and Positive Values & Spirituality. Parents, children, and camp staff reported significant positive change in these four domains; more than would be expected by maturation alone. Most gains were maintained or showed additional growth six months later. Few of the camp's structural elements correlated with growth, nor did striking gender, age, or ethnicity differences emerge. The study highlights the particular strengths of camp as an educational institution and social movement and suggests that different variations of summer camp can provide potent developmental experiences. Christopher A. Thurber is full-time faculty at Phillips Exeter Academy in Exeter, New Hampshire. He received his PhD in clinical psychology from the University of California, Los Angeles, in 1997. His major research interests include homesickness, youth camping, and developmental psychopathology. Margery M. Scanlin is the Executive Officer for Research at the American Camp Association in Martinsville, Indiana. She received her EdD from Temple University in Philadelphia, PA, in 1982. Her major research interests include youth development outcomes, program improvement in youth organizations, and organizational aspects of effective camps. Leslie Scheuler Whitaker is a Senior Associate with Philliber Research Associates in St. Louis, Missouri. She received her PhD in social science research from Washington University in St. Louis in 2000. Her primary research areas include youth development, arts education, and program evaluation. Karla A. Henderson is a professor in the Department of Parks, Recreation, and Tourism at North Carolina State University. She received her PhD in education from the University of Minnesota in 1979 and is currently a member of the American Camp Association Board of Directors. Her research interests include leisure behavior theory, camping and outdoor education, and gender and diversity issues.  相似文献   
950.
The aim of the present study was to examine a model positing that association with deviant peers mediates the relation between adolescent perceived parenting behaviors (maternal monitoring and involvement), the interaction of these parenting behaviors, and delinquency in a sample of 135 urban African American adolescents (13–19 years of age). Regression analyses revealed a monitoring by involvement interaction among African American females, suggesting that maternal monitoring may effectively reduce delinquency among African American female adolescents, and that this reduction may be enhanced by increased maternal involvement. Among African American males, only the relation between association with deviant peers and delinquency was supported, suggesting that maternal parenting behaviors may, in isolation, be insufficient in the prevention of delinquent behaviors in African American male adolescents. The results suggest that the pathways from parenting to association with deviant peers and delinquency may differ in males and females, and the salience of certain parenting behaviors may differ across gender. This article is based on research that was submitted by the first author in partial fulfillment of the requirements of the master’s degree in psychology at the University at Albany, State University of New York. Support for this research was provided by a Faculty Research Award to the second author. Doctoral student in the Clinical Psychology Program at the University at Albany, State University of New York. Her major research interests include risk and resiliency processes in minority youth and measurement equivalence of risk and resiliency constructs. Assistant professor in the Department of Psychology at the University at Albany, State University of New York. She received her Ph.D. in Clinical Psychology from the University of North Texas. Her major research interests are ecocultural models of risk and resiliency in minority youth and measurement equivalence of risk and resiliency constructs. Post-doctoral fellow with the Prevention Research Center at Arizona State University. He received his Ph.D. in Clinical Psychology from the University at Albany, State University of New York. His major research interests are ecocultural models of risk and resiliency in children, preventive intervention development for diverse children, and quantitative methodology and applications in developmental and cross-cultural psychology.  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