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   100328篇
  免费   4022篇
  国内免费   30篇
  104380篇
  2020年   947篇
  2019年   1275篇
  2018年   1702篇
  2017年   1786篇
  2016年   1890篇
  2015年   1361篇
  2014年   1625篇
  2013年   7648篇
  2012年   2961篇
  2011年   3161篇
  2010年   1970篇
  2009年   1947篇
  2008年   2758篇
  2007年   2805篇
  2006年   2551篇
  2005年   2288篇
  2004年   2166篇
  2003年   2020篇
  2002年   2165篇
  2001年   3104篇
  2000年   2965篇
  1999年   2294篇
  1998年   1151篇
  1997年   1017篇
  1996年   1037篇
  1992年   1917篇
  1991年   1806篇
  1990年   1790篇
  1989年   1691篇
  1988年   1663篇
  1987年   1572篇
  1986年   1653篇
  1985年   1722篇
  1984年   1445篇
  1983年   1325篇
  1982年   997篇
  1981年   995篇
  1979年   1568篇
  1978年   1141篇
  1976年   961篇
  1975年   1292篇
  1974年   1459篇
  1973年   1551篇
  1972年   1273篇
  1971年   1227篇
  1970年   1136篇
  1969年   1159篇
  1968年   1465篇
  1967年   1318篇
  1966年   1174篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
111.
112.
113.
114.
The principles, design considerations, and components of a clinical information system intended to support and enhance the patient care, educational, and research missions of a comprehensive psychiatric institute are presented. Major characteristics of the system are its emphases on efficiency, simplicity, and intensive user involvement throughout the development of the system.  相似文献   
115.
116.
Introduction     
Knowledge, Technology &; Policy -  相似文献   
117.
Brain lateralization research has led to speculation about counseling and guidance implications of left-right brain differences. Serious limitations in these implications are highlighted.  相似文献   
118.
A scale assessing generalized false self‐perceptions (Perceptions of False Self, POFS) was developed and tested across three studies involving a total of 331 adolescents (11–16 years). In Study 1, interviews were conducted to develop items for the scale. In Study 2, psychometric techniques were used to derive a scale composed of 16 items. Study 2 also assessed the validity of the scale: depressive symptoms were found to increase POFS across 10 weeks, whereas false self‐perceptions had a reciprocal effect on anxiety. In Study 3, the convergent validity of the POFS scale was established. Overall, the evidence suggests that the POFS scale is a reliable and valid measure of generalized false self‐perceptions.  相似文献   
119.
120.
Developing readers often make anagrammatical errors (e.g. misreading pirates as parties), suggesting they use letter position flexibly during word recognition. However, while it is widely assumed that the occurrence of these errors decreases with increases in reading skill, empirical evidence to support this distinction is lacking. Accordingly, we compared the performance of developing child readers (aged 8–10 years) against the end‐state performance of skilled adult readers in a timed naming task, employing anagrams used previously in this area of research. Moreover, to explore the use of letter position by developing readers and skilled adult readers more fully, we used anagrams which, to form another word, required letter transpositions over only interior letter positions, or both interior and exterior letter positions. The patterns of effects across these two anagram types for the two groups of readers were very similar. In particular, both groups showed similarly slowed response times (and developing readers increased errors) for anagrams requiring only interior letter transpositions but not for anagrams that required exterior letter transpositions. This similarity in the naming performance of developing readers and skilled adult readers suggests that the end‐state skilled use of letter position is established earlier during reading development than is widely assumed.  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