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   62276篇
  免费   2295篇
  国内免费   28篇
  64599篇
  2020年   693篇
  2019年   796篇
  2018年   1066篇
  2017年   1182篇
  2016年   1227篇
  2015年   899篇
  2014年   1054篇
  2013年   4796篇
  2012年   1954篇
  2011年   1938篇
  2010年   1247篇
  2009年   1216篇
  2008年   1757篇
  2007年   1706篇
  2006年   1486篇
  2005年   1375篇
  2004年   1289篇
  2003年   1233篇
  2002年   1259篇
  2001年   1776篇
  2000年   1713篇
  1999年   1293篇
  1998年   618篇
  1997年   603篇
  1992年   1137篇
  1991年   1035篇
  1990年   1113篇
  1989年   1007篇
  1988年   994篇
  1987年   970篇
  1986年   1010篇
  1985年   977篇
  1984年   880篇
  1983年   817篇
  1982年   590篇
  1981年   621篇
  1979年   964篇
  1978年   685篇
  1977年   608篇
  1976年   581篇
  1975年   826篇
  1974年   916篇
  1973年   950篇
  1972年   766篇
  1971年   760篇
  1970年   705篇
  1969年   758篇
  1968年   908篇
  1967年   844篇
  1966年   766篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
972.
School-focused problems present an interesting challenge to family therapists in that they take place in a system outside of the family. Treating the family without including the school often leads to a poor outcome. This article presents a macrosystemic model of treatment which views the family and school as an interacting system that maintains the ongoing problem. The therapist intervenes in this larger system by separately treating the family and school, then rejoining them to create a more functional working relationship.  相似文献   
973.
Book reviews     
With Faith and Fury. Delos McKown. New York: Promethius Books, 1985. pp 440. $16.95

The Sacred in a Secular Age. Phillip E. Hammond, Editor. University of California Press, 379 pages (p/b) $8.95 (£8.50)  相似文献   

974.
Computing stress     
This article is based on a review of recent literature on “computing stress”; that is, on the psychological stress effects of working with computer systems. Current research into the sources of computer-related stress has tended to concentrate on those employees who operate Visual Display Units (VDUs), either on a full-time professional basis as word-processor (WP) operators, data-entry clerks, secretaries, or those dealing with enquiries from the public; or employees who use the VDU irregularly as part of their other duties. A few studies have looked at specific occupation groups, such as printers (Kalimo & Leppänen, 1985), information technology professionals (programers and analysts), process workers, and college students (Sproull, Kiesler, & Zubrow, 1984). Generally, however, research has been carried out on office workers, more often women, carrying out administrative tasks. An attempt is made to identify those potential work-related stressors that have been isolated by these studies, and also included are criticisms of the general methodologies used in many of them.  相似文献   
975.
The purpose of the present experiment was to investigate the efficacy of a goal orientation procedure in their treatment of apathy, isolation, and insufficient goal setting skills in chronic psychiatric residents. The experiment was conducted in a behaviorally-oriented deinstitutionalization program in a state psychiatric hospital. Three male and four female chronic psychiatric residents served as research participants. A group repeated measures design with four within-participant phases (ABA‘B’) was utilized. The goal orientation procedure included a written schedule that was completed by each research participant daily. This Daily Living Schedule required that a behavior be specified by the participant for every half-hour period during the day (8:30 a.m. to 9:00 p.m.). During all four phases of the experiment, research participants were observed on the ward from 8:30 a.m. to 12:00 noon and 1:00 p.m. to 5:00 p.m. for engagement in scheduled target behaviors. The daily scheduling procedure produced substantial increases in appropriate behavior such as social activities, ward jobs, and participation in treatment programs, whereas decrease were produced in inappropriate behavior such as isolation and day time sleeping.  相似文献   
976.
There has been interest in recent years in the relationship between marital distress and psychopathology. It has been rare, however, for investigators to follow patients after their release from the hospital and observe the course of their marital relationships. The present study included patients meeting criteria for three DSM III DISORDERS (MAjor depressive, bipolar, and schizophrenic) and a normal control sample, all of whom are participants in an ongoing longitudinal study of children at risk for psychopathology (Stony Brook High-Risk Project; Weintraub & Neale, 1984). Marital Adjustment Test (MAT; Locke & Wallace, 1959) scores were collected on patients at entry into the project (Phase I) and at a three year follow-up (Phase II). Course of marriage was defined as negative if the couple's marital adjustment was rated as poor at Phase II or resulted in divorce or separation at Phase II. It was found that only the depressed group differed from the normal group in having significantly worse course of marital relationship; 84% of the depressive couples showed a “negative” course of marital change over time. However, all three patient groups had significantly higher rates of divorce by Phase II. MAT scores at Phase I successfully predicted course of marital relationship for all diagnostic groups. Implications for aftercare of psychiatric inpatients are discussed.  相似文献   
977.
The problem of ethics in medical care as seen from the bioengineering results from the almost incredible technological achievements based on scientific research: On the one hand there is inadequate handling of technology and fear on the part of the patient; on the other hand there is admiration on the part of the physicians and the nursing staff. This article will survey the points of criticism concerning ethical behavior and will present and evaluate general problems of mechanization in medical care. General phenomena of human interaction, and especially problems related to medical care, will be discussed. It will be necessary to develop clinical medical technology, aiming primarily at ‘realizing the patient's concern’. After analyzing these concerns, it is necessary for the clinical medical engineer to develop an ‘invisible’ technology. Criteria for such an ‘invisible’ technology (function, design, automatic control, methods of implantation, whether chronic application is necessary) are being demonstrated by particular devices (artifical heart, functional electro-stimulation, diaphragmatic pace-maker).  相似文献   
978.
Gardner, Dalsing, Reyes, and Brake (1984) supplied a table of criterion values (β) related to hit and false-alarm rates in signal detection theory. Other methods of calculatingβ are suggested as more accurate alternatives to using that table. A short computer program is provided to calculate β and the sensitivity indexd’.  相似文献   
979.
This study evaluated the relative efficacy of long (1 minute) and short (15 seconds) durations of negative practice for reducing self-stimulatory leg pounding of a traumatically brain-injured adult. In individual social skill training classes, long negative practice and short negative practice were administered concurrently in an alternating treatments design. Generalization of treatment effects outside of training sessions was assessed during the client's lunch period. The results revealed that both durations of negative practice were equally effective in reducing leg pounding during training sessions. However, the effects of training did not generalize to settings in which the practice contingency was not enforced. Pounding was more frequent and negative practice somewhat less effective during periods of high social stimulation.  相似文献   
980.
Two experiments showed the influence of perceptual set on the perception of subjective contours. In the first, the perceived shape of a subjective-contour figure (a minimal version of the Ehrenstein configuration) was varied by altering the observer’s viewing set. The second experiment showed that apparent depth emerged in subjective-contour figures when observers were set to perceive the illusory contours.  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