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   2802篇
  免费   64篇
  国内免费   1篇
教育   1913篇
科学研究   181篇
各国文化   59篇
体育   292篇
综合类   1篇
文化理论   17篇
信息传播   404篇
  2023年   9篇
  2022年   21篇
  2021年   43篇
  2020年   67篇
  2019年   132篇
  2018年   146篇
  2017年   159篇
  2016年   114篇
  2015年   82篇
  2014年   107篇
  2013年   586篇
  2012年   84篇
  2011年   80篇
  2010年   78篇
  2009年   81篇
  2008年   87篇
  2007年   80篇
  2006年   66篇
  2005年   62篇
  2004年   51篇
  2003年   57篇
  2002年   48篇
  2001年   38篇
  2000年   29篇
  1999年   30篇
  1998年   40篇
  1997年   28篇
  1996年   16篇
  1995年   23篇
  1994年   28篇
  1993年   28篇
  1992年   21篇
  1991年   17篇
  1990年   25篇
  1989年   19篇
  1988年   8篇
  1987年   13篇
  1986年   13篇
  1985年   17篇
  1984年   15篇
  1983年   22篇
  1982年   13篇
  1981年   17篇
  1980年   27篇
  1979年   13篇
  1978年   9篇
  1977年   9篇
  1976年   13篇
  1974年   13篇
  1972年   8篇
排序方式: 共有2867条查询结果,搜索用时 15 毫秒
31.
This article describes the establishment in fall 2002 of a School of Education Research Center designed to support faculty in increasing productivity and quality in research. Details are provided about center goals, services, staffing, space, resources, and logistics during the first year of operation. In addition, data are shared about faculty usage of the Center, the level of faculty satisfaction with center services in the first year, and initial increases in faculty productivity. The article concludes with plans for continued data collection to monitor the impact of the Center, a discussion of lessons learned at this point in the Center's development, and possibilities for the evolution of the Center. All authors are at the University of Colorado, Denver. Laura Goodwin, Ph.D., University of Colorado at Boulder, is Interim Associate Vice Chancellor for Faculty Affairs and continues to serve as a Faculty Research Associate. Elizabeth Kozleski, Ed.D., University of Northern Colorado, is the Associate Dean for Research in the School of Education. Lynn Rhodes, Ed.D., Indiana University, is the Dean of the School of Education. Rodney Muth, Ph.D., Claremont Graduate School, is a professor of Administrative Leadership and Policy Studies in the school and chaired the Research Center Advisory Board. Kim Kennedy White, M.A., University of Oregon, was the original School of Education Research Center Coordinator and was responsible for collecting most of the data included in this study.  相似文献   
32.
33.
The current study examines the association between parental support and adolescent sleep under varying levels of family stress. Participants included 316 adolescents (Mage = 16.40 years, 43% male) and their parents (Mage = 45.67 years, 91% mothers) from diverse ethnic backgrounds. Both adolescents and parents completed questionnaires and adolescents wore wrist actigraphs and completed self‐reports on their sleep for 7 consecutive days. Results indicated that under contexts of family stress, more parental support was linked to longer sleep duration, less sleep variability, and less time spent awake during the night. Findings suggest that under contexts of family stress, cohesive family relationships may provide a sense of stability and security that is necessary for healthful sleep.  相似文献   
34.
35.
36.
37.
This study assessed the feasibility of doing hearing screening in Migrant, American Indian and Early Head Start programs using otoacoustic emissions (OAE) technology. Staff members were trained to screen 0–3-year-old children for hearing loss using hand-held OAE equipment and a multi-step screening and referral protocol. Of the 3486 children screened as a part of the study, 77% passed an OAE screening at the first step, 18% more passed an OAE screening at the second step, and 5% were ultimately referred for medical or audiological follow-up. Eighty children were identified as having a hearing loss or disorder of the outer, middle or inner ear requiring treatment. Of these 80, six had permanent bilateral or unilateral hearing loss. Although the protocol suggested that the multi-step screening procedure should be completed within a 4-week time period or less, analysis of the data showed that for children requiring more than an initial OAE screening, the length of time over which the screening was completed ranged from 7 to 12 weeks. The median time required to complete a single OAE screening session was 4 minutes per child. The results demonstrate that OAE screening of young children using this protocol is practical and effective. The implications for conducting periodic hearing screening throughout early childhood are discussed.  相似文献   
38.
39.
40.
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