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   240篇
  免费   4篇
教育   197篇
科学研究   5篇
体育   14篇
文化理论   3篇
信息传播   25篇
  2023年   1篇
  2022年   1篇
  2020年   8篇
  2019年   2篇
  2018年   10篇
  2017年   4篇
  2016年   5篇
  2015年   4篇
  2014年   3篇
  2013年   57篇
  2012年   6篇
  2011年   5篇
  2010年   6篇
  2009年   6篇
  2008年   6篇
  2007年   7篇
  2006年   8篇
  2005年   6篇
  2004年   5篇
  2003年   11篇
  2002年   6篇
  2001年   5篇
  2000年   5篇
  1999年   5篇
  1998年   2篇
  1997年   4篇
  1996年   4篇
  1995年   2篇
  1994年   4篇
  1993年   1篇
  1992年   3篇
  1991年   3篇
  1990年   4篇
  1989年   4篇
  1987年   1篇
  1986年   2篇
  1985年   1篇
  1984年   1篇
  1983年   3篇
  1981年   2篇
  1980年   4篇
  1979年   5篇
  1978年   3篇
  1977年   3篇
  1974年   1篇
  1973年   2篇
  1946年   1篇
  1942年   2篇
排序方式: 共有244条查询结果,搜索用时 31 毫秒
41.
42.
In this study, we compared methods to improve the decoding and reading fluency of struggling readers. Second‐grade poor readers were randomly assigned to one of the two practice conditions within a repeated reading intervention. Both interventions were in small groups, were 20–28 min long, took place 2–4 days per week, and consisted of phonemic awareness training, letter sound practice, and practice in word families. Students in the accuracy condition (n= 27) practiced each page until they reached 98 percent accuracy while students in the accuracy + automaticity condition (n= 29) practiced until they reached rate (30–90 cwpm) and accuracy criteria. Hierarchical linear modeling revealed no differences between practice conditions in decoding accuracy, reading comprehension, and grade‐level text reading fluency. Significant differences favoring the accuracy + automaticity group were found in measures of decoding automaticity.  相似文献   
43.
44.
45.
This study analyzed the activity of expert table tennis players during a match, in reference to course of action theory (Theureau, 1992). Matches were videotaped, and the players' verbalizations as they viewed the tapes were collected a posteriori. The data was analyzed by (a) transcribing the players' actions and verbalizations, (b) decomposing their activity into elementary units of meaning, and (c) grouping the elementary units into larger sets. The results showed that the matches began with an inquiry into the specific features of the opponent's play. This was followed by reproducing the actions identified as effective during the inquiry. The results are discussed in relation to the role of training in expert performance.  相似文献   
46.
47.
Previous studies on overarm throwing have described a proximal-to-distal segmental sequence. The proximal segments reached their maximal linear velocities before the distal ones. In handball, no study has demonstrated this sequence from the upper torso to the wrist, although a recent study did present a different organization. The aim of this study was to analyse the throwing arm segmental organization during handball throwing. We found that the maximal linear velocity of the shoulder occurred after the maximal linear velocity of the elbow. Moreover, the maximal angular velocity of the upper torso occurred later than that of the elbow. Hence, contrary to other disciplines, the rotation of the upper torso was not suddenly stopped just after the forward arm motion was initiated. These results may apply to handball in general or be specific to the population of handball players studied. It may be advisable in future studies to include international players.  相似文献   
48.
49.
This article describes the investigation of white efflorescence on eight wooden African objects from Malawi and Zambia and the treatment of the objects to remove the deposits. The source of the efflorescence on these objects was determined to be the heartwood from which they were carved. Using gas chromatography-mass spectrometry and Fourier transform infrared spectrometry, the crystalline efflorescence was found to consist of homopterocarpin and pterocarpin, two isoflavonoid compounds found in woods and shrubs belonging to the genus Pterocarpus, and African Baphida nitida. The crystal growth appeared to be heaviest on areas of the objects that were more deeply carved as well as on those objects without a surface finish. The storage conditions of the collection were studied and found to have likely accelerated the rate and extent of the natural movement of the pterocarpan compounds from the interior of the heartwood to the outer surfaces.  相似文献   
50.
Eating is broadly conceptualized as food choice. Food choice is a complex activity with many dimensions. Food choice is multifaceted as it involves whether, where, when, how long, how, why, with whom, for whom, and under what conditions eating occurs. Food choice is contextual as it is situated within specific conditions and settings involving both individuals and institutions. Food choice is dynamic as it unfolds and is embedded in eating episodes over lifetimes within historical eras. Food choice is multilevel as physical, biological, psychological, and sociocultural factors operate simultaneously and interact. Food choice is integrated as people coordinate many considerations to construct specific eating activities. Food choice is diverse in its broad scope of distinct and unique eating activities. Food choice can be examined using both multi‐perspective and multi‐purpose approaches, and it may not be possible to integrate different perspectives into a unified approach to understanding and changing food choice.  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