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   42367篇
  免费   1663篇
  国内免费   19篇
  44049篇
  2020年   492篇
  2019年   604篇
  2018年   809篇
  2017年   877篇
  2016年   892篇
  2015年   627篇
  2014年   796篇
  2013年   3450篇
  2012年   1386篇
  2011年   1417篇
  2010年   913篇
  2009年   888篇
  2008年   1249篇
  2007年   1284篇
  2006年   1137篇
  2005年   1013篇
  2004年   977篇
  2003年   920篇
  2002年   964篇
  2001年   1230篇
  2000年   1158篇
  1999年   932篇
  1998年   457篇
  1997年   471篇
  1996年   417篇
  1995年   419篇
  1993年   437篇
  1992年   814篇
  1991年   704篇
  1990年   756篇
  1989年   666篇
  1988年   698篇
  1987年   661篇
  1986年   656篇
  1985年   599篇
  1984年   565篇
  1983年   546篇
  1982年   423篇
  1980年   413篇
  1979年   635篇
  1978年   490篇
  1977年   433篇
  1975年   548篇
  1974年   569篇
  1973年   580篇
  1972年   444篇
  1971年   443篇
  1969年   429篇
  1968年   500篇
  1967年   461篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
102.
103.
The startle probe response: a new measure of emotion?   总被引:17,自引:0,他引:17  
  相似文献   
104.
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   
105.
106.
Context and structure in conceptual combination   总被引:8,自引:0,他引:8  
  相似文献   
107.
A frequently advocated strategy for increasing the efficiency of child abuse prevention programs is to deliver prevention services to "high-risk" populations. This article critically reviews procedures for the reliable and valid assessment of child abuse potential within an ecological perspective. Factors that limit the usefulness of child abuse risk assessment are discussed. These factors include the uncertain criteria of child abuse and neglect, the low base rate of the phenomenon, and the financial and social costs of such procedures. Finally, the prevention implications of the current and future state of the art in child abuse risk assessment are considered and preventive interventions that do not depend on individual case risk screening are advocated.  相似文献   
108.
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   
109.
Contextual stimuli from one category increase the rated similarity of stimuli from a second category. In Experiment 1, associates of one of the members of pairs of target words increased the rated similarity of the members slightly more than did much less similar contextual stimuli. In Experiment 2, contextual category names and good exemplars increased the rated similarity of pairs of poor to medium target exemplars and were also rated as more similar to these targets than the targets were to each other. In both cases, the category names resulted in the stronger effect. This ability of contextually similar stimuli to increase rated similarity opposes the distance-density and averaging-judgmental theories of the effect of context on similarity. However, the theory that a positive association exists between the perceived similarity of stimuli and the strength of the category to which they belong explains how both contextually dissimilar and contextually similar stimuli can increase rated similarity.  相似文献   
110.
The concept of heightened resilience or invulnerability in young profoundly stressed children is developed in terms of its implications for a psychology of wellness and for primary prevention in mental health. Relevant literature is reviewed, a skeletal model for studying resilience is outlined, and needed research directions are considered. The latter include expansion of the construct's nomological definitional net, inquiry into the antecedents and determinants of resilience, and the application of such generative information to frame preventive interventions for young, profoundly stressed children.  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