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   1518篇
  免费   74篇
  国内免费   1篇
  2023年   8篇
  2022年   7篇
  2021年   17篇
  2020年   30篇
  2019年   35篇
  2018年   34篇
  2017年   36篇
  2016年   35篇
  2015年   31篇
  2014年   27篇
  2013年   191篇
  2012年   69篇
  2011年   66篇
  2010年   47篇
  2009年   50篇
  2008年   63篇
  2007年   60篇
  2006年   53篇
  2005年   55篇
  2004年   59篇
  2003年   51篇
  2002年   57篇
  2001年   36篇
  2000年   32篇
  1999年   29篇
  1998年   30篇
  1997年   26篇
  1996年   29篇
  1995年   14篇
  1994年   17篇
  1993年   15篇
  1992年   21篇
  1990年   15篇
  1989年   14篇
  1988年   11篇
  1987年   12篇
  1986年   11篇
  1985年   15篇
  1984年   22篇
  1983年   14篇
  1982年   15篇
  1981年   14篇
  1980年   12篇
  1979年   13篇
  1978年   10篇
  1977年   12篇
  1976年   11篇
  1974年   8篇
  1973年   9篇
  1971年   6篇
排序方式: 共有1593条查询结果,搜索用时 24 毫秒
21.
22.
Memory for visually presented verbal and pictorial material was compared using stimuli chosen to minimize non-essential differences between the two types of material. Experiment I required retention of a short list; verbal and pictorial stimuli were remembered equally well. Experiment II required recall of single items after 30 s of backwards counting; recall was much superior for pictorial stimuli. The type of task appeared to affect encoding, with verbal encoding reported to be predominant in Experiment I and visual encoding, or imagery, common in Experiment II.  相似文献   
23.
The efficacy of immediate tangible reinforcement in increasing appropriate visual attending for entire classes of deaf children was examined. The subjects were three classes (seven children each) in a residential school for the deaf. Boxes were installed on each child's desk, with lights that were flashed immediately contingent upon 10 sec of visual attending. Light flashes were backed up by M & M's, cereal bits, or tokens. In two of the classes, extinction sessions were also scheduled. For all classes, the reinforcement procedure increased visual attending by 50% or more, maintaining it at rates above 82%. Withdrawal of tangibles decreased attending back to baseline levels. The results support analysis of attending as operant behavior and demonstrate the applicability of reinforcement procedures in modifying these behaviors for young deaf children in a classroom setting.  相似文献   
24.
25.
26.
Over 18,000 students at Michigan State University reported their attendance at 46 campus events. Student characteristics were analyzed in terms of student attendance patterns. The 46 events were grouped into 4 independent categories that were attended by students with different characteristics. Students who attended cultural events were mostly single upperclassmen majoring in liberal arts; musical events were attended mostly by music majors; those attending athletic events tended to be single male undergraduates from the more applied disciplines; and social events were attended mostly by undergraduate girls.  相似文献   
27.
28.
29.
A therapeutic jurisprudence analysis attempts to discern the role of legal proceedings, lawyers and judges in producing therapeutic or anti-therapeutic consequences. This paper will attempt to use the therapeutic jurisprudence framework to analyze the legal and administrative aspects of court review as it was reported during a one year epidemiologic study of drug refusal. Characteristics of the review process, the effect on patient refusal, and the attitudes of treating psychiatrists are presented. To broaden the clinical context of the administrative findings, selected clinical characteristics of refusing patients, their attitudes toward mental illness, reasons for refusing medication and satisfaction with court review will be described. The discussion attempts to show how the initial administrative study findings may be interpreted in the broader context of their relationship to the achievement of therapeutic outcomes.  相似文献   
30.
Peer-group association and adolescent tobacco use   总被引:10,自引:0,他引:10  
Mosbach & Leventhal (1988) examined the relation of cigarette smoking to peer-group identification in rural Wisconsin adolescents. They found that among dirts (problem-prone youth), regulars (average youth), hot-shots (good social or academic performers), and jocks (athletes), youth most likely to smoke were dirts and hot-shots. We performed a replication with a Southern California cohort and also for use of smokeless tobacco. We hypothesized that jocks would be the main users of smokeless tobacco. We identified the same groups and an additional one, skaters (skateboarders or surfers). As Mosbach & Leventhal found, cigarettes were used most by dirts. Contrary to their results, but consistent with other research, we found that hot-shots were least likely to smoke. Contrary to our prediction, we found that skaters and dirts were more likely to use smokeless tobacco than were jocks. Our data show that both tobacco forms are used by problem-prone youth.  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