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   694篇
  免费   2篇
教育   551篇
科学研究   27篇
各国文化   12篇
体育   26篇
文化理论   5篇
信息传播   75篇
  2019年   13篇
  2018年   15篇
  2017年   24篇
  2016年   17篇
  2015年   8篇
  2014年   12篇
  2013年   157篇
  2012年   10篇
  2011年   10篇
  2010年   10篇
  2009年   10篇
  2008年   12篇
  2007年   19篇
  2006年   21篇
  2005年   21篇
  2004年   18篇
  2003年   25篇
  2002年   19篇
  2001年   18篇
  2000年   22篇
  1999年   11篇
  1998年   9篇
  1997年   12篇
  1996年   10篇
  1995年   16篇
  1994年   9篇
  1993年   15篇
  1992年   10篇
  1991年   12篇
  1989年   5篇
  1988年   8篇
  1987年   3篇
  1986年   6篇
  1985年   13篇
  1983年   4篇
  1982年   5篇
  1981年   8篇
  1980年   6篇
  1978年   8篇
  1977年   4篇
  1976年   6篇
  1975年   5篇
  1974年   2篇
  1973年   4篇
  1972年   6篇
  1971年   6篇
  1970年   4篇
  1969年   8篇
  1968年   3篇
  1967年   2篇
排序方式: 共有696条查询结果,搜索用时 31 毫秒
661.
662.
663.
664.
665.
666.
In this paper, we examine how individuals vary in their ability to control informal information during the purchasing process for an expensive complex technological product in the information technology area. As part of this research process, we use sociometric data from 41 firms to test a structural model of the effects that network heterogeneity and three organizational structure variables have on this type of information control. As hypothesized, increased network heterogeneity reduces an individual's ability to control informal information. Moreover, the structural variables of decentralization, formalization, and spatial differentiation are shown to affect informal information control in the predicted manner. Importantly, we also show that formalization and spatial differentiation affect network heterogeneity. Decentralization, however, was not found to be related to network heterogeneity.  相似文献   
667.
The purpose of the research was to examine the correlation between locus of control and metacognitive knowledge in math and math achievement among students with learning disabilities. We examined 30 eighth grade pupils with learning disabilities and 30 other pupils all of whom studied in a heterogeneous class in a public school in order to better understand the extent to which the variables: metacognitive knowledge, locus of control and achievement in math differed in the two populations. The pupils answered three questionnaires: the first was designed to study the locus of control, the second, to investigate metacognitive knowledge and the third, to measure math achievement. The findings of this study indicate that the higher the level of the internal locus of control, the higher the use of metacognitive knowledge. Furthermore, higher levels of internal locus of control and higher use of metacognitive knowledge resulted in increased math achievement.  相似文献   
668.
Although previous research has established that high school sports participation may be associated with positive academic outcomes, the parameters of the relationship remain unclear. Using a longitudinal sample of nearly 600 Western New York adolescents, this study examined gender- and race-specific differences in the impact of two dimensions of adolescent athletic involvement ("jock" identity and athlete status) on changes in school grades and school misconduct over a two-year interval. Female and black adolescents who identified themselves as "jocks" reported lower grades than those who did not, whereas female athletes reported higher grades than female nonathletes. Jocks also reported significantly more misconduct (including skipping school, cutting classes, having someone from home called to the school for disciplinary purposes, and being sent to the principal's office) than nonjocks. Gender moderated the relationship between athlete status and school misconduct; athletic participation had a less salutary effect on misconduct for girls than for boys.  相似文献   
669.
670.
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