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   38714篇
  免费   1501篇
  国内免费   16篇
  40231篇
  2020年   451篇
  2019年   553篇
  2018年   743篇
  2017年   819篇
  2016年   820篇
  2015年   580篇
  2014年   712篇
  2013年   3048篇
  2012年   1299篇
  2011年   1296篇
  2010年   837篇
  2009年   797篇
  2008年   1161篇
  2007年   1193篇
  2006年   1052篇
  2005年   935篇
  2004年   885篇
  2003年   838篇
  2002年   847篇
  2001年   1179篇
  2000年   1129篇
  1999年   883篇
  1998年   390篇
  1997年   387篇
  1996年   364篇
  1995年   367篇
  1993年   363篇
  1992年   756篇
  1991年   663篇
  1990年   730篇
  1989年   621篇
  1988年   642篇
  1987年   605篇
  1986年   616篇
  1985年   555篇
  1984年   521篇
  1983年   498篇
  1982年   365篇
  1980年   362篇
  1979年   584篇
  1978年   427篇
  1977年   358篇
  1975年   473篇
  1974年   521篇
  1973年   552篇
  1972年   407篇
  1971年   395篇
  1969年   403篇
  1968年   476篇
  1967年   435篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
101.
In this study the authors compared women's and men's reactions to various professional travel situations. A multivariate analysis of covariance was used to determine the effects of sex, professional role, and years traveling on the perceptions of these travel situations.  相似文献   
102.
The present study demonstrates the safety and effectiveness of an outpatient program designed to respond to adolescent-precipitated crises by mobilizing and restructuring the family's kinship system. Families of 75 adolescents at risk for hospitalization were followed up to 24 months after treatment with Systemic Crisis Intervention. Measures of offspring and family functioning, suicidal behavior, institutional use, and treatment costs are presented. Results clearly demonstrate the safety, effectiveness, and economic viability of Systemic Crisis Intervention.  相似文献   
103.
Depressed affect and time perception   总被引:1,自引:0,他引:1  
  相似文献   
104.
105.
106.
The startle probe response: a new measure of emotion?   总被引:17,自引:0,他引:17  
  相似文献   
107.
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   
108.
109.
Context and structure in conceptual combination   总被引:8,自引:0,他引:8  
  相似文献   
110.
Processing resources and age differences in working memory   总被引:1,自引:0,他引:1  
This study investigated the performance of young and old subjects on a modified version of the working memory task developed by Baddeley and Hitch (1974). Subjects were required to verify a set of sentences of varying complexity while they repeated aloud zero, two, or four words. The older subjects took longer to verify the sentences, especially when the sentences were grammatically complex, but the effect of concurrent memory load on verification latency was the same in both groups. These results cast doubt on the notion that there is an age-related decline in one general pool of processing resources. They also suggest that older people have greater difficulty with the active processing aspects, rather than with the passive holding aspects, of working memory tasks.  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