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   49249篇
  免费   1865篇
  国内免费   19篇
  51133篇
  2020年   572篇
  2019年   633篇
  2018年   939篇
  2017年   876篇
  2016年   1005篇
  2015年   698篇
  2014年   879篇
  2013年   4835篇
  2012年   1512篇
  2011年   1496篇
  2010年   1027篇
  2009年   1020篇
  2008年   1480篇
  2007年   1377篇
  2006年   1233篇
  2005年   1057篇
  2004年   1058篇
  2003年   1045篇
  2002年   998篇
  2001年   1383篇
  2000年   1360篇
  1999年   1060篇
  1998年   563篇
  1997年   496篇
  1996年   598篇
  1995年   603篇
  1994年   583篇
  1993年   553篇
  1992年   1010篇
  1991年   906篇
  1990年   922篇
  1989年   814篇
  1988年   817篇
  1987年   801篇
  1986年   780篇
  1985年   777篇
  1984年   723篇
  1983年   596篇
  1982年   486篇
  1981年   518篇
  1980年   474篇
  1979年   683篇
  1978年   528篇
  1976年   482篇
  1975年   595篇
  1974年   609篇
  1973年   649篇
  1972年   602篇
  1971年   542篇
  1968年   557篇
排序方式: 共有10000条查询结果,搜索用时 7 毫秒
151.
The Family System Functioning (FSF) scale is a new instrument for measuring dimensions of the intrafamilial environment thought to be important in recovery from major psychiatric illness. Modest statistical correlations were obtained when FSF ratings of laboratory-based family interactions were compared with researcher-guided therapist ratings of FSF based upon the family's behavior in family therapy sessions during the subsequent month. The data from these two settings provide support for the validity of some of the scales. Because of the modest size of the correlations, however, behavior in the laboratory setting may not always be an accurate indicator of how the family will behave in the early weeks of family therapy.  相似文献   
152.
T D Crespi 《Adolescence》1988,23(92):805-811
The effectiveness of a time-out intervention for adolescent psychiatric patients, adjudicated (delinquent) youth, and behaviorally disordered youngsters was explored in this study. The research was conducted in three psychiatric hospitals for children and adolescents, a facility for adjudicated youth, and in a day-treatment program. Utilizing a comparative outcome model, 813 occurrences of time-out with 274 youth were investigated in order to assess levels of effectiveness. The results indicated that time-out had a significant impact, and the use of a child-care specialist as time-out monitor improves overall effectiveness. Important implications for practicing professionals and clinical researchers are noted.  相似文献   
153.
154.
155.
156.
Context and structure in conceptual combination   总被引:8,自引:0,他引:8  
  相似文献   
157.
Two modes of learning for interactive tasks   总被引:5,自引:0,他引:5  
N A Hayes  D E Broadbent 《Cognition》1988,28(3):249-276
  相似文献   
158.
The care of the patient with cancer requires the development not only of a medical plan, but an ethical plan as well. This plan should integrate the physician's and the patient's perceptions of medical and ethical propriety. Jewish biomedical ethical principles are based on the teaching of the Old Testament and its various interpretations. In this paper, I discuss how these principles can be used to help guide the physician caring for the patient with cancer. Other ethical systems could be applied in a similar fashion.  相似文献   
159.
Hindsight bias: An interaction of automatic and motivational factors?   总被引:1,自引:0,他引:1  
If subjects are asked to recollect a former response after having been informed about the correct response, their recollection tends to approach the correct response. This effect has been termedhindsight bias. We studied hindsight bias in an experiment requiring numerical responses to almanac-type questions for physical quantities. We varied (1) the time at which the correct information was provided, (2) the encoding of the original responses by asking/not asking subjects to give a reason for the respective response, and (3) the motivation to recall correctly. We found that hindsight is less biased if reasons are given and if the correct information is provided at an earlier time. Motivation had only interactive effects: (1) With high motivation to recall correctly, the time the correct information was provided had no influence. (2) With reasons given, the variation of motivation showed no effect. These results rule out purely motivational and purely automatic explanations.  相似文献   
160.
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