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   62986篇
  免费   2618篇
  国内免费   21篇
  2020年   626篇
  2019年   838篇
  2018年   1144篇
  2017年   1180篇
  2016年   1243篇
  2015年   901篇
  2014年   1045篇
  2013年   4738篇
  2012年   1963篇
  2011年   2128篇
  2010年   1296篇
  2009年   1292篇
  2008年   1888篇
  2007年   1889篇
  2006年   1704篇
  2005年   1510篇
  2004年   1406篇
  2003年   1325篇
  2002年   1424篇
  2001年   2006篇
  2000年   2002篇
  1999年   1524篇
  1998年   736篇
  1997年   649篇
  1996年   641篇
  1993年   574篇
  1992年   1257篇
  1991年   1154篇
  1990年   1138篇
  1989年   1045篇
  1988年   1023篇
  1987年   980篇
  1986年   1051篇
  1985年   1071篇
  1984年   890篇
  1983年   806篇
  1982年   570篇
  1981年   572篇
  1979年   948篇
  1978年   677篇
  1975年   770篇
  1974年   822篇
  1973年   919篇
  1972年   773篇
  1971年   731篇
  1970年   650篇
  1969年   678篇
  1968年   866篇
  1967年   782篇
  1966年   660篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
201.
202.
Interview skills deficits may limit employment prospects of mentally retarded adults. Although numerous papers highlight the importance of interview skills, few have validated effective strategies for use with mentally retarded persons. Further, there has been a lack of research contrasting rival interview skills training strategies. The present study was conducted with two mentally retarded young adults. It contrasted peer-directed instruction, in which both participants were equally deficient in the target skills, with teacher-directed instruction. Results of the investigation indicated that instruction, rehearsal, and feedback may be effective strategies regardless of who provides instruction. Comparisons of teacher-directed and peer-directed instruction indicated little or no difference in the effectiveness of the two procedures. However, the peer-directed procedure involved considerably less staff time than did the teacher-directed procedure.  相似文献   
203.
204.
205.
Research in both laboratory and field settings has suggested a link between thermal stress and violent behavior, and both linear and curvilinear models have been investigated. A dearth of field studies prompted the analysis reported here, which is based on data for some 10,000 aggravated assaults occurring the City of Dallas in 1980 (a summer of severe heat stress) and 1981. This analysis replicates and extends certain aspects of recent work by Anderson and Anderson (1984) relating to the so-called linear and curvilinear hypotheses. Thermal stress is measured in two ways: a Discomfort Index (DI), which takes into account the influence of humidity acting in concert with temperature, and ambient temperature. Regression analyses were performed in two stages. In the first, data for all neighborhoods and all days of the study period were combined into ambient temperature and DI models. At the second stage, models differentiated between the three levels of neighborhood socioeconomic status. With weekend controlled, DI and ambient temperature were significant independent variables in the ‘overall’ model and in medium and low status neighborhoods. However, when linear effects were controlled, the curvilinear measures were never significant. The analysis generally tended to confirm Anderson and Anderson's suggestion that a reduction of aggression with increasing temperature does not appear to occur within the normal range of temperatures. This analysis further suggested that the hypothesized curvilinear effect is weak, if not entirely absent, even during conditions of extreme heat.  相似文献   
206.
207.
208.
The startle probe response: a new measure of emotion?   总被引:17,自引:0,他引:17  
  相似文献   
209.
210.
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