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   3421篇
  免费   128篇
  国内免费   1篇
  2021年   21篇
  2020年   30篇
  2019年   51篇
  2018年   59篇
  2017年   74篇
  2016年   84篇
  2015年   55篇
  2014年   71篇
  2013年   328篇
  2012年   110篇
  2011年   140篇
  2010年   90篇
  2009年   76篇
  2008年   127篇
  2007年   124篇
  2006年   126篇
  2005年   127篇
  2004年   134篇
  2003年   127篇
  2002年   122篇
  2001年   56篇
  2000年   59篇
  1999年   64篇
  1998年   72篇
  1997年   54篇
  1996年   38篇
  1995年   51篇
  1994年   58篇
  1993年   53篇
  1992年   45篇
  1991年   39篇
  1990年   45篇
  1989年   37篇
  1988年   30篇
  1987年   37篇
  1986年   44篇
  1985年   37篇
  1984年   53篇
  1983年   50篇
  1982年   46篇
  1981年   53篇
  1980年   41篇
  1979年   46篇
  1978年   39篇
  1977年   37篇
  1976年   35篇
  1975年   37篇
  1974年   35篇
  1973年   22篇
  1966年   18篇
排序方式: 共有3550条查询结果,搜索用时 15 毫秒
51.
52.
The experiences of the placement department of the Mental Health and Manpower Project have demonstrated that an effective team can be created to develop job opportunities for the mentally restored psychiatric patient. Composed of a vocational counselor and a placement counselor, the team is effective in securing meaningful employment and developing re-education programs in the community. While the vocational counselor provides the clinical information concerning the restored patient-client, the placement counselor serves as a more personnel oriented individual in finding the appropriate kind of employment position. The team points to the potential that the mental health center possesses in involving the general community in its programs.  相似文献   
53.
Simultaneous recording from scalp and cortical electrodes in unanesthetized and unrestrained cats revealed essentially no differences between the superficial and deep recordings of the auditory evoked responses. Human recordings taken under two conditions of muscular contraction contained no major differences from 30 to 300 msec after stimulus onset.  相似文献   
54.
The behavior of four monkeys trained on a multiple schedule was differentially sensitive to selected pharmacological agents. The three components of the multiple schedule were: (1) a variable-interval schedule in which responses were reinforced on the average of once per minute; (2) a concurrent schedule in which every tenth response was reinforced and every fifteenth response, on the average, was shocked; and, (3) a neutral stimulus in the presence of which responses were neither reinforced nor shocked. Pentobarbital, chlordiazepoxide, and meprobamate increased responding during each of the components. Scopolamine and d-amphetamine decreased variable-interval performance, had minimal effects on performance during the concurrent-schedule component, and increased responding in the presence of the neutral stimulus. Chlorpromazine decreased variable-interval responding and had slight effects on the responding during the other two components.  相似文献   
55.
56.
This annual review of job satisfaction researches is the 23rd in a series and covers reports published in 1964–65 plus earlier studies not previously dealt with in this journal. The format—findings and conclusions, topics investigated, per cent dissatisfied, current emphases, and summaries of studies—has become standard in this series of articles.  相似文献   
57.
Left and right halves of a visual display were covered with inducing fields (IFs) of different lightnesses. S’s monocular gaze moved over an irreversible route from a neutral Munsell target to a CO series through either the left- or right-side IFs. For the 16 Ss there were 8 different IFs, varying from light to dark. For each of three different gray targets Munsell CO choices varied directly with the lightness of the IFs through which the gaze was routed rather than with the lightness of the total presented display. A replication with modifications is also reported.  相似文献   
58.
59.

Erratum

Overt integrity tests versus personality-based measures of delinquency: An empirical comparis  相似文献   
60.
The development of expert and decision support systems requires the collection, organization, codification, and storage of a body of specialized knowledge. The development, using reconstructive methods, of two such knowledge bases, the first containing the current scientific literature and the second containing an expert’s knowledge, is described for an automated decision support system, the Mental Retardation-Expert. This system provides practitioners with assistance in the treatment of aggressive, self-injurious, and destructive behaviors displayed by individuals with mental retardation or developmental disabilities. The average interobserver reliability of the expert knowledge base ranged from 92.5% to 95.0% when calculated across four clinicians’ assessments of 31 abstracted cases.  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