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   186899篇
  免费   8212篇
  国内免费   158篇
  195269篇
  2020年   2886篇
  2019年   3545篇
  2018年   3790篇
  2017年   4237篇
  2016年   4820篇
  2015年   3991篇
  2014年   4902篇
  2013年   23808篇
  2012年   5110篇
  2011年   4367篇
  2010年   4186篇
  2009年   4892篇
  2008年   4398篇
  2007年   3962篇
  2006年   4450篇
  2005年   4352篇
  2004年   3822篇
  2003年   3403篇
  2002年   3288篇
  2001年   3747篇
  2000年   3594篇
  1999年   3397篇
  1998年   2887篇
  1997年   2693篇
  1996年   2604篇
  1995年   2440篇
  1994年   2432篇
  1993年   2354篇
  1992年   2828篇
  1991年   2645篇
  1990年   2546篇
  1989年   2460篇
  1988年   2413篇
  1987年   2438篇
  1986年   2411篇
  1985年   2654篇
  1984年   2673篇
  1983年   2433篇
  1982年   2448篇
  1981年   2397篇
  1980年   2230篇
  1979年   2431篇
  1978年   2289篇
  1977年   2227篇
  1976年   2030篇
  1975年   2185篇
  1974年   2278篇
  1973年   2174篇
  1972年   1749篇
  1971年   1651篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
72.
Internal attribution for bad events, along with stable and global attributions, has been regarded as a component of pessimism, a precursor of negative work outcomes. Most evidence in support of this conceptualisation has come from research conducted in individualist cultures. We questioned if internal attribution has the same pessimistic implication in a collectivist culture. Findings from two studies conducted on Chinese employees supported our expectations that the stability and globality dimensions (but not the internality dimension) would predict disengagement responses (such as quitting and being neglectful at work) and lack of engagement responses (such as voicing suggestions and being loyal to the organisation). A reconceptualisation of pessimism in the workplace is therefore necessary. A dimensional, rather than a composite, scoring method is proposed for maintaining the predictive and construct validities of attributional style as an indicator of pessimism.  相似文献   
73.
Cognitive neuropsychology provides a theoretical framework and methods that can be of value in the study of developmental disorders, but the "dissociation" logic at the centre of this approach is not well suited to the developmental context. This is illustrated with examples from specific language impairment. Within the developing language system there is ample evidence for interaction between levels of representation, with modularity emerging in the course of development. This means that one typically is seeking to explain a complex pattern of associated impairments, rather than highly selective deficits. For instance, a selective impairment in auditory processing can have repercussions through the language system and may lead to distinctive syntactic deficits that are seen in written as well as spoken language. Changes in the nature of representations and in the relationships between components of a developing system mean that cross-sectional data at a single point in development may be misleading indicators of the primary deficit. Furthermore, traditional cognitive neuropsychology places a disproportionate emphasis on representational (competence) deficits, with processing (performance) deficits being relatively neglected. Methods for distinguishing these two kinds of impairment are discussed, as well as other approaches for elucidating the underlying nature of developmental disorders.  相似文献   
74.
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   
75.
76.
77.
78.
79.
80.
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