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   2405篇
  免费   82篇
  2018年   26篇
  2017年   27篇
  2016年   42篇
  2015年   24篇
  2014年   32篇
  2013年   247篇
  2012年   59篇
  2011年   62篇
  2010年   45篇
  2009年   62篇
  2008年   64篇
  2007年   71篇
  2006年   57篇
  2005年   53篇
  2004年   69篇
  2003年   67篇
  2002年   75篇
  2001年   32篇
  2000年   37篇
  1999年   32篇
  1998年   39篇
  1997年   35篇
  1996年   29篇
  1995年   36篇
  1994年   38篇
  1993年   26篇
  1992年   37篇
  1991年   28篇
  1990年   36篇
  1989年   32篇
  1988年   32篇
  1987年   26篇
  1986年   35篇
  1985年   29篇
  1984年   45篇
  1983年   39篇
  1982年   38篇
  1981年   54篇
  1980年   42篇
  1979年   50篇
  1978年   42篇
  1977年   36篇
  1976年   47篇
  1975年   52篇
  1974年   53篇
  1973年   41篇
  1972年   24篇
  1971年   29篇
  1969年   33篇
  1968年   34篇
排序方式: 共有2487条查询结果,搜索用时 0 毫秒
911.
In this article the history of sociology is set in the context of the European legal tradition, especially that of Roman law and its modern interpretations and transmutations; and Montesquieu and Vico are briefly examined as social thinkers illustrating a kind of paradigm-shift from the old art of law to the new science of society.  相似文献   
912.
913.
914.
915.
The latency of reading 5-word sequences of 3 levels of acoustic similarity was measured. Highly similar sequences were found to have longer latencies than sequences of low similarity or control sequences. The implications of this finding for the acoustic similarity effect in STM are discussed.  相似文献   
916.
917.
918.
Self-evidence     
  相似文献   
919.
Described an examination of data collected 2 years following the onset of a media-based, worksite smoking cessation intervention. Thirty-eight companies in Chicago were randomly assigned to one of two experimental conditions. In the inital 3-week phase, all participants in both conditions received self-help manuals and were instructed to watch a 20-day televised series designed to accompany the manual. In addition, participants in the group (G) condition received six sessions emphasizing quitting techniques and social support. In the second phase, which continued for 12 months, employees in G participated in monthly peer-led support groups and received incentives, while participants in the nongroup (NG) condition received no further treatment. Twenty-four months after pretest, 30% of employees in G were abstinent compared to only 19.5% in NG. This study is one of the few experimentally controlled worksite smoking cessation interventions to demonstrate significant program differences 2 years following the initial intervention. Our thanks to Lori Klett and Libby Yeager-Turner for their help in data collection. Work on the project was supported in part by National Institute on Drug Abuse grant DA-04406-01 and a grant from the Chicago Lung Association to the second author.  相似文献   
920.
Children and adults were escorted on their first walk across our university campus and were periodically led off the original route during the return trip. During the return, we stopped prior to intersections on and off the original route to obtain estimates of place recognition accuracy and confidence. The subjects were then asked to point to the path that led back to the start and were corrected if wrong. Accuracy of place recognition was intermediate in a way-finding task requiring reversal of an incidentally learned novel route. However, accuracy increased as subjects were farther from the original route, indicating that the presence of novel landmarks boosted the discrimination of old and new places. Eight-year-old children were less accurate than 12-year-old children and 25-year-old adults, who did not differ in accuracy. There was a similar age difference in the ability to point to the direction to return when subjects correctly recognized that they were off route. The results are used to develop a model of way finding by place recognition.  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