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   57055篇
  免费   2347篇
  国内免费   21篇
  2020年   526篇
  2019年   642篇
  2018年   906篇
  2017年   940篇
  2016年   1014篇
  2015年   768篇
  2014年   869篇
  2013年   4151篇
  2012年   1628篇
  2011年   1605篇
  2010年   999篇
  2009年   958篇
  2008年   1395篇
  2007年   1440篇
  2006年   1226篇
  2005年   1174篇
  2004年   1097篇
  2003年   1037篇
  2002年   1077篇
  2001年   1849篇
  2000年   1771篇
  1999年   1322篇
  1998年   583篇
  1996年   534篇
  1992年   1212篇
  1991年   1145篇
  1990年   1176篇
  1989年   1024篇
  1988年   1035篇
  1987年   976篇
  1986年   1028篇
  1985年   1103篇
  1984年   843篇
  1983年   772篇
  1982年   542篇
  1981年   533篇
  1979年   968篇
  1978年   658篇
  1977年   604篇
  1976年   584篇
  1975年   821篇
  1974年   961篇
  1973年   1014篇
  1972年   847篇
  1971年   802篇
  1970年   796篇
  1969年   757篇
  1968年   1011篇
  1967年   884篇
  1966年   787篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
851.
852.
853.
854.
855.
856.
857.
The purposes of this investigation were to determine the role of career mobility and perceived career success by Black managers and to describe common career and personal traits among successful Black managers.  相似文献   
858.
In two experiments, a speeded sorting task was administered to children. In each sorting, the child was instructed to sort a deck of cards according to values on one dimension while the values of a second irrelevant dimension were held constant, were correlated, or were varied orthogonally. Experiment 1 evaluated developmental changes in perceived structure as compared with such changes in the control of attention. Different groups of kindergarten, 2d-, and 5th-grade children performed the task with spatially integrated vs spatially separated dimensions. The results indicate that with spatially integrated dimensions there is a trend from holistic to featural perception and an increase in attentional control with increasing age. Spatially separate dimensions are perceived dimensionally at all ages, but show a trend in attentional development. In Experiment 2, the spatially integrated dimensions of Experiment 1 were made separable by portraying different targets within a configuration in different colors. The theoretical implications of the results are discussed.  相似文献   
859.
This study examined the relationships between metamemory and strategic behavior in impulsive and reflective children. One hundred thirty children from the fourth, fifth, and sixth grades participated. Seventy-seven of these children had been tested 3 years earlier on metamemory and cognitive tempo tasks. At pretraining, children were assessed on metamemory, cognitive tempo, summarization skills, and teacher ratings of impulsive behavior in the classroom. Next, children in three experimental groups received prose summarization instructions, summarization instructions in conjunction with metacognitive training about the importance of a reflective approach to learning, or no instructions. Following training, children were again measured on tempo, summarization skills, and teacher ratings of impulsivity. Analyses of strategy maintenance data indicated superior performance for children who had received both summarization and metacognitive training. Causal modeling analyses showed that early metamemory was an antecedent of later strategy acquisition. The dual role of metacognition as a precursor of later strategy acquisition and controller of lower level strategies was highlighted.  相似文献   
860.
There are wide individual differences in the characteristic intensity of affective response to the same emotion-evoking event. The processes whereby individuals come to experience strong or mild emotional responses when exposed to the same affect-provoking stimuli are still unclear. In these studies, we propose that individual differences in affect intensity are associated with certain cognitive operations used during exposure to emotion-relevant stimuli. Specifically, cognitive operations that involve personalizing, generalizing, and selective abstraction were hypothesized to discriminate subjects high and low in affect intensity. Two studies replicated support for the hypothesis that subjects high on the affect-intensity dimension engage in more personalizing/empathic and more generalizing/elaborative cognitive operations than do subjects low on the affect-intensity dimension. The same cognitive operations discriminated groups high and low in affect intensity in response to both positive and negative emotional stimuli. Also, the cognitions that discriminated subjects high and low in affect intensity occurred only in response to affective stimuli; neutral stimuli did not evoke divergent cognitive operations for these two groups. Finally, a high degree of consistency was found in the use of emotion-relevant cognitive operations across positive and negative affective stimuli.  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