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   5755篇
  免费   90篇
  国内免费   20篇
教育   3990篇
科学研究   642篇
各国文化   32篇
体育   475篇
综合类   6篇
文化理论   45篇
信息传播   675篇
  2023年   36篇
  2022年   42篇
  2021年   61篇
  2020年   118篇
  2019年   169篇
  2018年   237篇
  2017年   261篇
  2016年   216篇
  2015年   150篇
  2014年   215篇
  2013年   977篇
  2012年   148篇
  2011年   150篇
  2010年   157篇
  2009年   123篇
  2008年   137篇
  2007年   153篇
  2006年   123篇
  2005年   81篇
  2004年   103篇
  2003年   88篇
  2002年   65篇
  2001年   117篇
  2000年   149篇
  1999年   101篇
  1998年   76篇
  1997年   65篇
  1996年   63篇
  1995年   46篇
  1994年   47篇
  1993年   32篇
  1992年   75篇
  1991年   69篇
  1990年   59篇
  1989年   60篇
  1988年   73篇
  1987年   58篇
  1986年   77篇
  1985年   70篇
  1984年   52篇
  1983年   67篇
  1982年   51篇
  1981年   38篇
  1979年   50篇
  1978年   47篇
  1977年   36篇
  1976年   37篇
  1975年   29篇
  1974年   32篇
  1973年   34篇
排序方式: 共有5865条查询结果,搜索用时 468 毫秒
1.
Working memory training improves children's cognitive performance on untrained tasks; however, little is known about the underlying neural mechanisms. This was investigated in 32 typically developing children aged 10–14 years (19 girls and 13 boys) using a randomized controlled design and multi-modal magnetic resonance imaging (Devon, UK; 2015–2016). Training improved working memory performance and increased intrinsic functional connectivity between the bilateral intraparietal sulci. Furthermore, improvements in working memory were associated with greater recruitment of the left middle frontal gyrus on a complex span task. Repeated engagement of fronto-parietal regions during training may increase their activity and functional connectivity over time, affording greater working memory performance. The plausibility of generalizable cognitive benefits from a neurobiological perspective and implications for neurodevelopmental theory are discussed.  相似文献   
2.
Seventy-nine 3-year olds and their mothers participated in a laboratory-based task to assess maternal hostility. Mothers also reported their behavioral regulation of their child. Seven years later, functional magnetic resonance imaging data were acquired while viewing emotional faces and completing a reward processing task. Maternal hostility predicted more negative amygdala connectivity during exposure to sad relative to neutral faces with frontal and parietal regions as well as more negative left ventral striatal connectivity during monetary gain relative to loss feedback with the right posterior orbital frontal cortex and right inferior frontal gyrus. In contrast, maternal regulation predicted enhanced cingulo-frontal connectivity during monetary gain relative to loss feedback. Results suggest parenting is associated with alterations in emotion and reward processing circuitry 7–8 years later.  相似文献   
3.
Learners who enrol in massive open online courses (MOOCs) have different backgrounds and tend to have different motivations than learners in traditional courses. Based on value-expectancy theory, an instrument was developed to measure motivation for enrolling in a programming MOOC. A study with 1229 adult participants in Estonian-language programming course “About Programming” was conducted to validate the instrument. Results of confirmatory factor analysis validated the 7-factor scale named factors influencing enrolment in MOOC (FIEM). FIEM comprises three factors of expectancies, three factors of values and one factor of social influence. The highest and lowest rated motivational factors influencing enrolment in programming MOOC are discussed in the paper. Interest in and expectations for the course, personal suitability of distance learning and suitability for family and work are the highest-rated motivational factors for those who enrol in MOOC. Usefulness related to own children, social influence and usefulness to related to certification were the lowest rated. The results of this study can be useful for designers of programming MOOCs and the developed scale might be used in future studies.  相似文献   
4.
5.
6.
7.
8.
9.
10.
Educational Assessment, Evaluation and Accountability - Promoting success for all students is the driving force to develop and implement sound teacher evaluation systems. As Stronge suggests,...  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