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   50749篇
  免费   2054篇
  国内免费   33篇
  52836篇
  2020年   520篇
  2019年   599篇
  2018年   880篇
  2017年   899篇
  2016年   962篇
  2015年   634篇
  2014年   806篇
  2013年   3876篇
  2012年   1525篇
  2011年   1567篇
  2010年   947篇
  2009年   991篇
  2008年   1314篇
  2007年   1344篇
  2006年   1189篇
  2005年   1068篇
  2004年   1032篇
  2003年   950篇
  2002年   1018篇
  2001年   1651篇
  2000年   1658篇
  1999年   1243篇
  1998年   561篇
  1997年   487篇
  1993年   469篇
  1992年   1008篇
  1991年   925篇
  1990年   947篇
  1989年   896篇
  1988年   865篇
  1987年   837篇
  1986年   844篇
  1985年   905篇
  1984年   735篇
  1983年   669篇
  1982年   525篇
  1979年   806篇
  1978年   579篇
  1977年   533篇
  1976年   521篇
  1975年   670篇
  1974年   760篇
  1973年   766篇
  1972年   679篇
  1971年   596篇
  1970年   536篇
  1969年   627篇
  1968年   738篇
  1967年   657篇
  1966年   643篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
131.
Using a multi-trial, free-recall paradigm (Rey Auditory-Verbal Learning Test; Lezak, 1983), the acquisition and retention by learning disabled (LD) young adults with a Halstead Impairment Index less than or equal to 0.3 (low LD) or greater than or equal to 0.4 (high LD) was compared with that of nondisabled and head-injured (HI) young adults. Significant group differences, particularly during the last three acquisition trials, confirmed the effectiveness of this method in revealing subtle learning and retention deficits. Analyses of Trial 1 recall showed group differences in the prerecency but not the recency portion of the serial position curve, thus implicating long-term but not short-term memory differences between the groups. Analyses of pair frequency (Sternberg & Tulving, 1977) data showed that the three clinical groups had difficulty organizing the to-be-learned material for effective retrieval. Following an interpolated task, retention was poorer for the clinical groups than for the nondisabled and varied inversely with the degree of neuropsychological impairment. Finally, during retention, the nondisabled and low LD groups retained and used the list organization established during acquisition whereas the high LD and HI groups did not.  相似文献   
132.
Inexperienced beer-drinkers who could not pass a beer-flavor discrimination test were divided into a taste group, which received additional perceptual experience with beer flavors; a verbal group, which received instruction in beer flavor terminology; a taste/verbal group, which received both additional experience and instruction; and a control group. Before and after training, all subjects participated in a similarity rating task involving beer flavors and flavor-related adjectives. Additional taste experience--but not increased experience with beer-flavor terminology--improved novices' ability to detect identical beer flavors. Results are discussed in terms of the trainability of flavor discrimination and the role of cognitive factors (both flavor-related and flavor-independent) in marketing beverages.  相似文献   
133.
134.
This paper emphasizes the impact of the setting, space, and general physical properties of the clinic upon the difficult patient's profound neediness and absence of inner regulatory structure. Moreover, the clinic's administrative style and requirements often related to fiscal restraints, demands for accountability for both how funds are spent and treatment outcome, all impinge upon the patient. Humanizing clinics so they have the capacity for psychotherapeutic holding and provision of safety for difficult patients are discussed in detail in this contribution.  相似文献   
135.
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   
136.
137.
Depressed affect and time perception   总被引:1,自引:0,他引:1  
  相似文献   
138.
139.
An Expanded Attributional Style Questionnaire   总被引:5,自引:0,他引:5  
  相似文献   
140.
Return of fear: underlearning and overlearning   总被引:1,自引:0,他引:1  
  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