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   173234篇
  免费   7822篇
  国内免费   156篇
  2021年   1492篇
  2020年   2765篇
  2019年   3426篇
  2018年   3518篇
  2017年   3957篇
  2016年   4602篇
  2015年   3909篇
  2014年   4785篇
  2013年   23412篇
  2012年   4559篇
  2011年   3703篇
  2010年   3866篇
  2009年   4745篇
  2008年   3834篇
  2007年   3429篇
  2006年   4048篇
  2005年   4018篇
  2004年   3531篇
  2003年   3133篇
  2002年   2980篇
  2001年   3264篇
  2000年   3078篇
  1999年   3093篇
  1998年   2820篇
  1997年   2652篇
  1996年   2569篇
  1995年   2403篇
  1994年   2374篇
  1993年   2327篇
  1992年   2548篇
  1991年   2394篇
  1990年   2249篇
  1989年   2209篇
  1988年   2178篇
  1987年   2206篇
  1986年   2171篇
  1985年   2427篇
  1984年   2513篇
  1983年   2321篇
  1982年   2374篇
  1981年   2345篇
  1980年   2184篇
  1979年   2209篇
  1978年   2180篇
  1977年   2134篇
  1976年   1952篇
  1975年   1997篇
  1974年   2046篇
  1973年   1954篇
  1972年   1528篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
We investigated eye‐movements during preschool children's pictorial recall of seen objects. Thirteen 3‐ to 4‐year‐old children completed a perceptual encoding and a pictorial recall task. First, they were exposed to 16 pictorial objects, which were positioned in one of four distinct areas on the computer screen. Subsequently, they had to recall these pictorial objects from memory in order to respond to specific questions about visual details. We found that children spent more time fixating the areas in which the pictorial objects were previously displayed. We conclude that as early as age 3–4 years old, children show specific eye‐movements when they recall pictorial contents of previously seen objects.  相似文献   
102.
103.
104.
105.
106.
107.
This paper traces the emergence of engagement mentoring, which seeks to re-engage socially excluded youth with the formal labour market by altering their attitudes, values, and beliefs. Engagement mentoring has been promoted in European and British policy as an holistic response to social exclusion, for example, in the new Connexions service. However, the original meaning of 'holism' has become contested, and policies and practices which claim to be holistic require clearer analysis. Drawing on Bourdieuian theory, and evidence from recent research, this paper interrogates the holistic claims of engagement mentoring from the perspective of its intended effects on mentees. It argues that the model treats personal disposition--habitus--as a raw material to be wrought into 'employable' dispositions, with little or no acknowledgement of institutional or structural fields of power. However, habitus is highly complex, with deep-rooted and collective aspects not easily transformed. A greater understanding of habitus might result in more genuinely holistic approaches to mentoring, and counter a perceptible policy drift towards totalitarian rather than holistic practice.  相似文献   
108.
Previous research demonstrates that older adults are poor at dual tasking, but there is less agreement on whether their decrement is worse than that predicted from single-task performance. This study investigated whether task domain moderates dual-task costs in old age. In two experiments, young and older adults retrieved either previously learned associates (episodic retrieval) or overlearned category members (semantic retrieval) under single or working-memory load conditions, using cued recall (Experiment 1) and recognition (Experiment 2) procedures. In both experiments the proportional costs of dual tasking were age invariant for semantic retrieval but were particularly marked for episodic retrieval, although the size of the age effect was reduced in recognition compared to cued recall. The data suggest that age effects in dual tasking may be domain specific.  相似文献   
109.
110.
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