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   75842篇
  免费   3045篇
  国内免费   30篇
  2020年   822篇
  2019年   962篇
  2018年   1397篇
  2017年   1407篇
  2016年   1484篇
  2015年   1059篇
  2014年   1313篇
  2013年   6256篇
  2012年   2390篇
  2011年   2437篇
  2010年   1500篇
  2009年   1507篇
  2008年   2171篇
  2007年   2083篇
  2006年   1934篇
  2005年   1626篇
  2004年   1656篇
  2003年   1597篇
  2002年   1570篇
  2001年   2384篇
  2000年   2245篇
  1999年   1715篇
  1998年   837篇
  1997年   762篇
  1996年   808篇
  1995年   743篇
  1992年   1466篇
  1991年   1360篇
  1990年   1331篇
  1989年   1273篇
  1988年   1257篇
  1987年   1181篇
  1986年   1209篇
  1985年   1238篇
  1984年   1034篇
  1983年   897篇
  1979年   1092篇
  1978年   843篇
  1977年   701篇
  1976年   709篇
  1975年   878篇
  1974年   1036篇
  1973年   1091篇
  1972年   899篇
  1971年   857篇
  1970年   776篇
  1969年   791篇
  1968年   975篇
  1967年   880篇
  1966年   867篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
Groups of 12 normal and insomniac male subjects aged 55 to 71 yr. were sleep deprived for 64 hr. In both groups, the sleep loss was preceded by four baseline sleep nights and followed by four recovery nights. Reaction time, immediate recall, sleepiness, and body temperature were measured at approximately 2300, 0115, 0330, 0530, and 0800 during baseline, deprivation and recovery nights. Significant performance or mood differences were not found between the normal and insomniac males on any measure or at any testing period throughout the study. Performance of both groups declined characteristically during sleep loss while subjective sleepiness increased. As in young adults, degraded performance was restored by 8 hr. of recovery sleep. However, subjective sleepiness did not return to baseline levels until early in the second recovery night. It was concluded that chronic insomnia does not result in group performance deficits similar to those seen after chronic sleep loss; and the restorative function of sleep operates as efficiently in older insomniac subjects (who apparently have reduced need to sleep) as in older normal subjects.  相似文献   
982.
The association of left lateral eye-movement with emotionality or arousal of affect and of right lateral eye-movement with cognitive/interpretive operations and functions was investigated. Participants were junior and senior students enrolled in an undergraduate course in developmental psychology. There were 37 women and 13 men, ranging from 19 to 45 yr. of age. Using videotaped lateral eye-movements of 50 participants' responses to 15 visually presented stimuli (precategorized as neutral, emotional, or intellectual), content and statistical analyses supported the association between left lateral eye-movement and emotional arousal and between right lateral eye-movement and cognitive functions. Precategorized visual stimuli included items such as a ball (neutral), gun (emotional), and calculator (intellectual). The findings are congruent with existing lateral eye-movement literature and also are additive by using visual stimuli that do not require the explicit response or implicit processing of verbal questioning.  相似文献   
983.
28 older women participating in an exercise program were compared to 30 older women not participating in an exercise program on two behavioral measures. There were no significant main effects for participation-nonparticipation in an exercise program. Significant main effects were found, however, for each of three social variables.  相似文献   
984.
A property of attitudes, namely, the fact that attitudes select facts, is used to comment upon a paper on handedness and career choice.  相似文献   
985.
This paper offers a critique of the prevailing epistemological assumptions which undergird modern Pastoral Care and Counseling education. By drawing upon emerging insights in Transpersonal Psychology and Consciousness disciplines, along with the ontological perspectives of Martin Heidegger and John Macquarrie, the attempt is made to reclaim the modes of knowing of William James and Anton Boison. This paper includes practical and concrete examples of how one supervisor is attempting to put a new paradigm into practice.  相似文献   
986.
987.
The development of beliefs about falling objects   总被引:1,自引:0,他引:1  
  相似文献   
988.
989.
990.
Firstly two female patients with hypoparathyroidism and basal ganglia calcifications are described who developed after long course of illness delusions of parasitosis. The pathological cerebral changes responsible for delusions of parasitosis are mostly localized in the brain-stem. Regarding the two case histories and the former literature the relationship between peripheral paresthesias and a supposed disturbance of central processing is discussed.  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