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   274篇
  免费   10篇
各国政治   8篇
工人农民   15篇
世界政治   18篇
外交国际关系   15篇
法律   173篇
中国政治   4篇
政治理论   51篇
  2023年   1篇
  2022年   2篇
  2021年   2篇
  2020年   8篇
  2019年   6篇
  2018年   9篇
  2017年   13篇
  2016年   7篇
  2015年   4篇
  2014年   6篇
  2013年   25篇
  2012年   8篇
  2011年   5篇
  2010年   7篇
  2009年   1篇
  2008年   12篇
  2007年   16篇
  2006年   9篇
  2005年   6篇
  2004年   12篇
  2003年   12篇
  2002年   15篇
  2001年   18篇
  2000年   15篇
  1999年   8篇
  1998年   3篇
  1997年   2篇
  1996年   2篇
  1995年   1篇
  1994年   1篇
  1993年   1篇
  1992年   2篇
  1991年   4篇
  1990年   4篇
  1989年   7篇
  1988年   2篇
  1987年   3篇
  1986年   2篇
  1985年   5篇
  1983年   1篇
  1982年   3篇
  1980年   1篇
  1979年   6篇
  1975年   1篇
  1974年   1篇
  1973年   1篇
  1972年   1篇
  1970年   2篇
  1969年   1篇
排序方式: 共有284条查询结果,搜索用时 0 毫秒
281.
282.
The National Household Education Survey, a nationally representative data set (N=4,306 high school students and one parent of each), was analyzed to describe characteristics of adolescents, the nature of their service activities, and academic, behavioral and civic outcomes associated with service (voluntary compared to school-required and by type of service). Participation in any service is associated with positive outcomes whether service is voluntary or required. Adolescents who worked directly with individuals in need had better academic adjustment; those who worked for organizations had better civic outcomes than adolescents who performed other types of service. Findings are discussed in terms of their significance for adolescent development, educational policy, and the use of large national data sets to examine service participation. Assistant Professor of Educational Psychology at Northern Illinois University. She received her Ph.D. in Psychology: Human Development from the University of Chicago. Her research interests include motivation, resilience, and positive youth development. Professor at Northern Illinois University. She received her Ph.D. in Educational Psychology from the University of Wisconsin-Madison. Her research interests include family, community, and out-of-school influences on child and adolescent educational adjustment. Received her M.S. Ed. in Educational Psychology from Northern Illinois University, where she is currently pursuing her doctoral degree. Her current research interests involve the role of adolescents' family, community and school contexts in fostering their social, moral, and educational development.  相似文献   
283.
In the Western world, self-incineration is a rare event compared with the Asian countries. The circumstances of death are often unusual, and differentiation from homicide is sometimes possible only after evaluating all the investigation results and findings. In many cases of self-cremation, a fire accelerant is used. In our study material at least 30% of the body surface were burned. Unaffected skin was predominantly found on the back of the body. The cases presented by us are inhomogenous as to the motive and differ from those reported in the literature with regard to gender distribution, scene, motivational situation and psychological constitution.  相似文献   
284.
Subcutaneous bruises caused by blunt injury are common findings in medicolegal case work. If the hematoma involves the anterior thoracic wall, bruises are mostly absent in the region of the nipples and the surrounding areola. A similar phenomenon has already been described for hypostatic skin hemorrhages. A possible explanation for both phenomena is the special tissue texture in the nipple–areola complex. Based on four cases from the forensic autopsy material and two cases from clinical forensic examinations, the macromorphological findings and the histological correlates are presented.  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