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   2249篇
  免费   94篇
  国内免费   1篇
教育   1596篇
科学研究   118篇
各国文化   69篇
体育   301篇
综合类   1篇
文化理论   29篇
信息传播   230篇
  2023年   13篇
  2022年   23篇
  2021年   32篇
  2020年   78篇
  2019年   115篇
  2018年   129篇
  2017年   120篇
  2016年   150篇
  2015年   99篇
  2014年   103篇
  2013年   500篇
  2012年   74篇
  2011年   78篇
  2010年   56篇
  2009年   61篇
  2008年   72篇
  2007年   54篇
  2006年   48篇
  2005年   33篇
  2004年   32篇
  2003年   47篇
  2002年   22篇
  2001年   28篇
  2000年   18篇
  1999年   23篇
  1998年   20篇
  1997年   17篇
  1996年   15篇
  1995年   18篇
  1994年   20篇
  1993年   15篇
  1992年   17篇
  1991年   23篇
  1990年   15篇
  1989年   12篇
  1988年   16篇
  1987年   9篇
  1986年   8篇
  1985年   11篇
  1984年   14篇
  1983年   7篇
  1982年   8篇
  1981年   17篇
  1979年   7篇
  1978年   11篇
  1977年   5篇
  1974年   5篇
  1969年   4篇
  1966年   4篇
  1965年   3篇
排序方式: 共有2344条查询结果,搜索用时 218 毫秒
941.
942.
943.
Postural Sway of Human Infants while Standing in Light and Dark   总被引:3,自引:0,他引:3  
Postural sway was measured in 12-14-month-old human infants and in adults while they were standing in the light and dark. Spectral density analyses conducted on all frequencies, at specific frequencies, and for individual subjects showed that infants generally did not sway significantly more in the dark than in the light, whereas adults did. For example, infants' dark/light sway proportions were 1.12 and 1.21 for the anterior-posterior and lateral dimensions, respectively, compared to adult values of 2.23 and 3.43 for one-footed stance, and 1.43 and 2.13 for two-footed stance. A statistical power analysis indicated that if the dark/light proportions for infants had been comparable to those for adults, significant differences could have been detected. These findings indicate that the early regulation of standing posture does not depend on the continuous availability of visual information.  相似文献   
944.
945.
946.
The Place of Time in Cognition   总被引:1,自引:0,他引:1  
  相似文献   
947.
Over the past decade, there has been an increase in the application of the case study method to investigate the process used by students in secondary school and undergraduate academic settings to locate and use information through the library. The case study method has, in most recent years compared to investigations of 20 to 30 years ago, become established as the primary research technique used to document student thought processes in topic focus and in source selection. Direct observation and interviewing successful library users, two tools common to the case study method, may also lead to examination of student selection and critical use of evidence for research projects as students move beyond the traditional library collection. These tools have also proven to be useful as researchers in recent studies are more interested in an analysis of student use of information as evidence rather than conducting studies which only document student location and citation of resources. Selected studies which illustrate this evolution are drawn from the dissertations and field studies related to secondary school and undergraduate bibliographic instruction.  相似文献   
948.
Editorial     
  相似文献   
949.
Several physics classes followed an integrated multi-media, multi-modal teaching-learning system or schedule, and completed a number of evaluation instruments designed to collect data on both affective and cognitive variables, as well as on the resulting behaviors of teachers and students. The data lead to some tentative conclusions about reactions of students to different media in such a system, effects of media on learning, and the impact of the system on teacher self-concept. Conclusions relate to the future of such integrated systems and their effects on motivation and learning.  相似文献   
950.
Individual differences in children's propensity to demonstrate cognitive synthesis were evaluated using an artificial reading task. Six-year-olds were asked to demonstrate the meaning of various sentences constructed of logographs, or whole-word symbols, which were arranged in either a meaningful (i.e., grammatical) or scrambled (i.e., ungrammatical) order. Some children demonstrated the sentences in a synthesized mode (expressing a single idea unit), while others used a nonsynthesized mode (expressing the meanings of individual logographs). Overall, synthesizers had a larger attentional reserve, or M-capacity, than nonsynthesizers. The two groups did not differ significantly in age, intellectual level, or reading achievement. As predicted by their larger M-capacity, synthesizers demonstrated from memory significantly more items from meaningful sentences than nonsynthesizers. However, when synthesizers attempted to integrate the scrambled sentences, the excessive operative schemes needed to reorganize the items reduced their recall performance to the level of nonsynthesizers.  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