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   176658篇
  免费   8053篇
  国内免费   158篇
  2020年   2799篇
  2019年   3472篇
  2018年   3580篇
  2017年   4015篇
  2016年   4688篇
  2015年   3949篇
  2014年   4838篇
  2013年   23596篇
  2012年   4657篇
  2011年   3746篇
  2010年   3962篇
  2009年   4816篇
  2008年   4021篇
  2007年   3529篇
  2006年   4104篇
  2005年   4057篇
  2004年   3590篇
  2003年   3221篇
  2002年   3033篇
  2001年   3476篇
  2000年   3323篇
  1999年   3278篇
  1998年   2845篇
  1997年   2702篇
  1996年   2620篇
  1995年   2446篇
  1994年   2413篇
  1993年   2349篇
  1992年   2715篇
  1991年   2553篇
  1990年   2419篇
  1989年   2305篇
  1988年   2272篇
  1987年   2269篇
  1986年   2289篇
  1985年   2496篇
  1984年   2594篇
  1983年   2369篇
  1982年   2379篇
  1981年   2387篇
  1980年   2221篇
  1979年   2278篇
  1978年   2218篇
  1977年   2180篇
  1976年   1998篇
  1975年   2084篇
  1974年   2139篇
  1973年   2028篇
  1972年   1620篇
  1971年   1551篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
This study examined the influence of various group diversity dimensions on collaborative creativity related to the healthcare system. Research findings on the association between diversity and brainstorming performance has been mixed. Diversity that increases cognitive stimulation or promotes elaboration has been shown to increase group performance. Participants exchanged ideas, replied, and elaborated using an electronic discussion board in an asynchronous fashion in groups of five over a period of 4 weeks. The groups varied in diversity of ethnicity, gender, age, and political orientation, but participants were not made aware of this diversity. Age and gender diversity were related to lower levels of replying to ideas and lower idea novelty but political diversity was related to increased replies and novelty. If a topic engages people with different perspectives to actively respond to others’ ideas, this can increase the creative potential of idea sharing in groups. Political or value-based diversity has the potential for creative solutions if the other participants’ political or value-based identities are not made salient.  相似文献   
102.
103.
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   
104.
105.
106.
107.
108.
109.
James Cargile 《Topoi》2003,22(2):143-149
  相似文献   
110.
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   
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