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   38228篇
  免费   1602篇
  国内免费   29篇
  2020年   440篇
  2019年   507篇
  2018年   716篇
  2017年   707篇
  2016年   814篇
  2015年   549篇
  2014年   662篇
  2013年   3157篇
  2012年   1243篇
  2011年   1240篇
  2010年   763篇
  2009年   879篇
  2008年   1102篇
  2007年   1143篇
  2006年   1014篇
  2005年   890篇
  2004年   867篇
  2003年   858篇
  2002年   860篇
  2001年   1150篇
  2000年   1149篇
  1999年   891篇
  1998年   417篇
  1997年   407篇
  1996年   394篇
  1995年   425篇
  1993年   395篇
  1992年   721篇
  1991年   674篇
  1990年   642篇
  1989年   622篇
  1988年   619篇
  1987年   571篇
  1986年   559篇
  1985年   612篇
  1984年   537篇
  1983年   508篇
  1982年   406篇
  1979年   575篇
  1978年   434篇
  1977年   403篇
  1976年   419篇
  1975年   438篇
  1974年   517篇
  1973年   531篇
  1972年   450篇
  1971年   381篇
  1968年   455篇
  1967年   401篇
  1966年   375篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
Promises     
GRANT CK 《Mind》1949,58(231):359-366
  相似文献   
63.
64.
65.
In two experiments, right-handed men and women were tested for ear differences in report of dichotically presented digits, with their heads straight ahead, turned 90 degrees to the left, and turned 90 degrees to the right. In Experiment 1, head turn was controlled simply by asking the subjects to fixate an appropriately located point; a right-ear advantage occurred under all conditions of head turn among the men, but only in the head-straight condition among the women. In Experiment 2, head turn was controlled by having the subjects direct a flashlight attached to their heads toward the fixation point. This eliminated the right-ear advantage under all head conditions for the men, but for the women the right-ear advantage was, if anything, more pronounced when their heads were turned than when straight. These results suggest that auditory asymmetry depends in part on whether space is perceived as divided into left and right sides, and in part of the balance between spatial and verbal requirements. Both factors, and the asymmetry itself, may interact with sex.  相似文献   
66.
We carried out a randomized controlled trial to determine whether an intensive intervention after a suicide attempt could decrease by half the risk of a repeat attempt in the following two years. After initial assessment and randomization, experimental subjects attended 18 therapy appointments over one year, including one home visit, and measures to improve attendance. Control subjects received the usual care. Of 63 experimental subjects, 35% made a repeat attempt, and so did 30% of 63 control subjects. The study had a 99% power to detect the desired decrease of risk (30% to 15%). Clearly, the intervention did not achieve its objective.  相似文献   
67.
68.
Using data from interviews with professional women on their work-related stress and coping processes, the author identified those who were good and poor at coping.  相似文献   
69.
Differences in recall ability between immediate serial recall of auditorily and visually presented verbal material have traditionally been considered restricted to the end of to-be-recalled lists, the recency section of the serial position curve (e.g., Crowder & Morton, 1969). Later studies showed that--under certain circumstances--differences in recall between the two modalities can be observed across the whole of the list (Frankish, 1985). However in all these studies the advantage observed is for recall of material presented in the auditorily modality. Six separate conditions across four experiments demonstrate that a visual advantage can be obtained with serial recall if participants are required to recall the list in two distinct sections using serial recall. Judged on a list-wide basis, the visual advantage is of equivalent size to the auditory advantage of the classical modality effect. The results demonstrate that differences in representation of auditory and visual verbal material in short-term memory persist beyond lexical and phonological categorization and are problematic for current theories of the modality effect.  相似文献   
70.
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