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   18783篇
  免费   1263篇
各国政治   837篇
工人农民   912篇
世界政治   1238篇
外交国际关系   637篇
法律   12950篇
中国共产党   2篇
中国政治   108篇
政治理论   3269篇
综合类   93篇
  2023年   84篇
  2021年   108篇
  2020年   467篇
  2019年   489篇
  2018年   638篇
  2017年   653篇
  2016年   728篇
  2015年   568篇
  2014年   587篇
  2013年   2032篇
  2012年   592篇
  2011年   592篇
  2010年   589篇
  2009年   613篇
  2008年   566篇
  2007年   582篇
  2006年   558篇
  2005年   471篇
  2004年   463篇
  2003年   381篇
  2002年   436篇
  2001年   692篇
  2000年   626篇
  1999年   499篇
  1998年   245篇
  1997年   182篇
  1996年   203篇
  1995年   197篇
  1994年   172篇
  1993年   178篇
  1992年   310篇
  1991年   317篇
  1990年   301篇
  1989年   282篇
  1988年   305篇
  1987年   264篇
  1986年   323篇
  1985年   317篇
  1984年   251篇
  1983年   233篇
  1982年   186篇
  1981年   156篇
  1980年   145篇
  1979年   222篇
  1978年   118篇
  1977年   93篇
  1975年   95篇
  1974年   124篇
  1973年   79篇
  1972年   78篇
排序方式: 共有10000条查询结果,搜索用时 7 毫秒
831.
Die Verj?hrung wird durch die Erhebung der Klage nur unter der weiteren Voraussetzung unterbrochen, dass die Klage geh?rig fortgesetzt wird. Bei der Prüfung, ob ein l?ngeres Zuwarten mit der Fortsetzung der Verfolgung eines Anspruchs iSd § 1497 ABGB noch hingenommen werden kann oder eine ungew?hnliche Unt?tigkeit vorliegt, ist nicht nur auf die Dauer der Unt?tigkeit, sondern vor allem auf die Gründe Bedacht zu nehmen, die im Verh?ltnis zwischen den Parteien gelegen sein müssen. Ist dem Kl?ger nicht nur vorzuwerfen, eine ausstehende Prozesshandlung beim s?umigen Gericht nicht betrieben zu haben, sondern hat er durch Ersuchen und Stellungnahmen aktiv auf das Gericht eingewirkt, zuzuwarten und nicht von sich aus t?tig zu werden, so ist bei einem mehr als dreij?hrigen Verfahrensstillstand, der überdies nicht auf Betreiben des Kl?gers, sondern aufgrund amtswegiger T?tigkeit des Gerichts beendet wurde, jedenfalls von einer nicht geh?rigen Fortsetzung der Klage und daher von einer Verj?hrung des Anspruchs iSd § 1497 ABGB auszugehen.  相似文献   
832.
833.
834.
Open My Heart     
T. M. McNally 《耶鲁评论》2001,89(2):131-149
  相似文献   
835.
836.
Editorial     
Ohne Zusammenfassung  相似文献   
837.
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   
838.
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   
839.
The direct and mediated effects of socioenvironmental risk on internalizing and externalizing problems among Latino youth aged 10–14 were examined using prospective analyses. Participants in this study were 464 Latino mother and child dyads surveyed as part of the Welfare, Children & Families: A Three City Study. It was hypothesized that socioenvironmental risk (i.e., maternal psychological distress, maternal parenting stress, neighborhood disadvantage, and perceived financial strain) would influence later adolescent adjustment by interrupting important family processes and interfering with opportunities for adolescents to develop appropriate social competence. Using path analyses, the mediational model was compared across high and low acculturation groups. With two exceptions, the models for the high and low acculturation groups were equivalent. Results supported a mediated effect between early socioenvironmental risk and later adjustment problems for the low acculturation group through family routines and adolescent social competence. Among families high in acculturation, socioenvironmental risk effects were partially mediated through family routines and adolescent social competence. Finally, a path from gender to maternal monitoring was present in the low acculturation group model but not the high acculturation group model. Assistant professor 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 risk and resiliency processes in minority youth. Assistant professor at the University of Texas at Austin. She received her Ph.D. in Developmental Psychology from Michigan State University. Her major research interests are the effects of microenvironmental factors in the externalizing and internalizing behaviors of European American and Latino youth. Assistant professor at the University of Maryland, Baltimore County. She received her Ph.D. in Clinical Psychology from Michigan State University. Her major research interests are risk and protective factors in children and adolescents at-risk because of parental substance abuse.  相似文献   
840.
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