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   4279篇
  免费   1456篇
  5735篇
  2023年   10篇
  2021年   82篇
  2020年   91篇
  2019年   402篇
  2018年   299篇
  2017年   412篇
  2016年   391篇
  2015年   375篇
  2014年   330篇
  2013年   623篇
  2012年   327篇
  2011年   227篇
  2010年   268篇
  2009年   238篇
  2008年   227篇
  2007年   152篇
  2006年   136篇
  2005年   139篇
  2004年   106篇
  2003年   133篇
  2002年   134篇
  2001年   103篇
  2000年   85篇
  1999年   52篇
  1998年   19篇
  1997年   16篇
  1996年   9篇
  1995年   12篇
  1994年   12篇
  1992年   15篇
  1991年   16篇
  1990年   13篇
  1989年   9篇
  1988年   13篇
  1987年   13篇
  1984年   20篇
  1982年   9篇
  1981年   10篇
  1980年   9篇
  1979年   20篇
  1978年   8篇
  1977年   15篇
  1976年   11篇
  1975年   11篇
  1974年   14篇
  1972年   10篇
  1970年   13篇
  1969年   12篇
  1968年   12篇
  1967年   10篇
排序方式: 共有5735条查询结果,搜索用时 0 毫秒
31.
An information processing system for a psychiatric emergency room is described. Several studies are presented that show the utility of the system. In the first study, variables involved in diagnosis are explicated. The second study attempts to determine the characteristics that distinguish recidivists from nonrecidivists at an emergency room. The third study attempts to find patient variables related to success in short-term treatment programs. The final study is aimed at discovering whether there are psychopathological effects related to the use of inhalants. Together, these studies show the potential of a mental health information system for learning more about the nature of mental disorders and their treatment.  相似文献   
32.
In an investigation of the effects of stem structure and direction set on sentence completion responses, 160 undergraduate males were randomly assigned to one of four conditions: Rotter ISB with "feelings" instructions, Rotter ISB with "speed" instructions, Sacks SCT with "feelings" instructions, Sacks SCT with "speed" instructions. Eight clinical judges derived hypotheses from the completed protocols; two judges evaluated each protocol. Interjudge reliability was measured by Pearson product-moment correlations and percents of agreement. There was a significant effect for amount of stem structure; the structured Sacks SCT stems yielded more clinical hypotheses. Structured stems also elicited significantly more feeling words. No significant effect was found for instructional set, nor was there a significant relationship between stem structure or instruction set and the numbers of words in completions.  相似文献   
33.
Although the Bender-Gestalt Visual Motor Test has been a popular and influential clinical assessment instrument for the last half century, authoritative opinion and a substantial research literature are often inconsistent or contradictory. This paper documents variations in designs, administration procedures, forms, and applications to particular populations. A careful review of scoring systems indicates the current status of objective approaches as contrasted with interpretation that is global, intuitive, and subjective. Some implications of these variations and interpretive procedures for training and assessment practice are discussed. The major conclusions of the review are summarized in seven points.  相似文献   
34.
A FAITH FOR ALL SEASONS:ISLAM AND WESTERN MODERNITY. By Shabbir Akhtar. London: Bellew Publishing, 1990. 251pp. Hb. £25.00. ISBN 0–947792–41–4.  相似文献   
35.
36.
Gender displays in portrait photographs   总被引:1,自引:0,他引:1  
Following the research of Goffman (1976) and Henley (1977) on sex differences in nonverbal behavior, 1,296 portrait photographs from high school and university yearbooks and from the media files of a university were analyzed for sex differences. Females smiled with a significantly greater frequency and expansiveness than males and head canted significantly more than males. Results supporting the hypothesis that males would face the camera more directly than females failed to reach the acceptable significance level. The prediction that persons working in opposite-sex roles would deintensify their gender displays failed to gain support.The author expresses appreciation to Bill Drell and Andrea Wilson for their assistance in data collection.  相似文献   
37.
This paper describes an automated eye movement laboratory that uses electrooculography (EOG) to study people’s eye movements while they read. An on-line minicomputer processes bioelectric potentials that correspond to saccadic eye movements. Horizontal saccades larger than 1.5 deg of visual angle are detected and analyzed in real-time as they occur. The laboratory is designed for prolonged yet unobtrusive observation of human eye movements during sustained reading periods of minutes or hours. All important functions regarding data collection and data reduction are performed automatically, according to simple procedures that can be applied uniformly and without bias to nearly all subjects that we study. Results from three experiments are cited in order to quantify the performance of the laboratory with respect to four criteria: saccade detection accuracy, measurement accuracy, sensitivity, and the uniformity of these measures over different subjects.  相似文献   
38.
39.
In a paradigm in which rats would both initiate and terminate hypothalamic stimulation, "purely" rewarding lateral hypothalamic and "purely" aversive medial hypothalamic electrodes were identified. Subjects were then given a series of tests designed to assess the effects of brain stimulation on approach and withdrawal behaviors. Lateral hypothalamic stimulation facilitated approach behavior and suppressed withdrawal behaviors, whereas medial hypothalamic stimulation produced largely the opposite effects. No serious motor deficits due to stimulation were detected with either type of electrode. In a second experiment, the approach-withdrawal effects of bilateral lateral hypothalamic lesions were tested and found to suppress approach behaviors and facilitate withdrawal behaviors. Other neurological examinations revealed motor deficits, but these deficits do not account for the specific pattern of results observed on the approach-withdrawal tests. These approach-withdrawal phenomena are interpreted in terms of altering a natural balance between approach and withdrawl behavior facilitating systems in the lateral and medial hypothalamus, respectively.  相似文献   
40.
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