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   941篇
  免费   36篇
教育   697篇
科学研究   24篇
各国文化   13篇
体育   61篇
文化理论   13篇
信息传播   169篇
  2022年   5篇
  2021年   4篇
  2020年   10篇
  2019年   14篇
  2018年   27篇
  2017年   42篇
  2016年   32篇
  2015年   19篇
  2014年   39篇
  2013年   451篇
  2012年   11篇
  2011年   13篇
  2010年   5篇
  2009年   15篇
  2008年   24篇
  2007年   11篇
  2006年   4篇
  2005年   5篇
  2004年   10篇
  2003年   3篇
  2002年   4篇
  2001年   4篇
  2000年   3篇
  1999年   10篇
  1998年   10篇
  1997年   10篇
  1996年   9篇
  1995年   8篇
  1994年   5篇
  1993年   10篇
  1991年   9篇
  1990年   9篇
  1989年   5篇
  1988年   11篇
  1987年   11篇
  1986年   6篇
  1985年   7篇
  1984年   9篇
  1983年   3篇
  1982年   14篇
  1981年   8篇
  1980年   4篇
  1979年   4篇
  1978年   6篇
  1977年   6篇
  1976年   5篇
  1975年   10篇
  1974年   7篇
  1973年   4篇
  1969年   3篇
排序方式: 共有977条查询结果,搜索用时 31 毫秒
91.
This meta-analysis synthesizes the empirical data on problem behaviors among foreign- (G1) and U.S-born (G2+) youth and explores the effects of immigrant status on youth internalizing and externalizing problems. A random effects meta-regression with robust variance estimates summarized effect sizes for internalizing and externalizing problems across 91 studies (N = 179,315, Mage = 13.98). Results indicated that G1 youth reported significantly more internalizing problems (g = .06), and fewer externalizing problems than G2+ youth (g = −.06). Gender and sample type moderated the effects. The findings provide a first-step toward reconciling mixed support for the immigrant paradox by identifying for whom and under what conditions the immigrant experience serves as a risk or protective factor for youth.  相似文献   
92.
93.
This study examined differential enrollment, survival, progress, and academic success of both black and white first-time-in-college students according to three admission categories (unrestrictive, restrictive, and special) in predominantly white universities in the Florida State University System. Data were extracted from the Board of Regents' student data course files and analyzed. White students were enrolled almost exclusively in the traditional (unrestrictive) category, while black students were almost equally enrolled in all three categories. Although the overall survival rate of white students was higher than that of black students, within each admission category, the survival rate of black students was higher than that of white students.This paper was presented at the Annual Meeting of the American Educational Research Association, Boston, April 1980.  相似文献   
94.
95.
96.
97.
98.
A recent classroom revelation caused us to reconsider the adequacy of the instructions offered in our textbooks for one of our most elementary quantitative methods. Specifically, we found that many students were mystified concerning how to pick an initial objective function value when plotting an isoprofit line in order to graphically solve a linear programming problem. We observed that this seemingly insignificant issue was causing a surprising amount of wasted time, confusion, and even anxiety. Our experience indicated that students do not necessarily possess any consistent intuition for choosing an appropriate initial value. We confirmed this perception through informal experimentation. We reviewed several textbooks and found that most simply do not bother to address this issue. Therefore, we devised a simple, comprehensible method which we have taught our students to resolve or avoid this problem. Although we quickly found the method to be helpful for many students, we conducted an experiment to formally measure its effect.  相似文献   
99.
ABSTRACT

Along with the dramatic expansion of private tutoring around the world, a significant body of literature has been produced to understand this phenomenon. While many studies consider the issue of geographic location, the spatial dimension tends not to be a central focus of private tutoring studies. In contrast, the present essay applies mobility theory to research from Cambodia, where private tutoring is essential to student success. It does so in order to place private tutoring provision into a broader perspective that includes but moves beyond the economic dimensions of supply and demand and the sociological dimensions of economic, cultural, and social capital to include consideration of how private tutoring provision is constrained by a multidimensional spatial field of possibilities and how private tutoring participation is enabled by one’s position and abilities in relation to that field. The paper argues for increased attention to ‘spatial capital’ in studies of private tutoring and education generally.  相似文献   
100.
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