全文获取类型
收费全文 | 5244篇 |
免费 | 84篇 |
国内免费 | 20篇 |
专业分类
教育 | 3525篇 |
科学研究 | 636篇 |
各国文化 | 33篇 |
体育 | 474篇 |
综合类 | 6篇 |
文化理论 | 39篇 |
信息传播 | 635篇 |
出版年
2023年 | 27篇 |
2022年 | 36篇 |
2021年 | 53篇 |
2020年 | 100篇 |
2019年 | 151篇 |
2018年 | 192篇 |
2017年 | 220篇 |
2016年 | 178篇 |
2015年 | 134篇 |
2014年 | 177篇 |
2013年 | 906篇 |
2012年 | 148篇 |
2011年 | 149篇 |
2010年 | 125篇 |
2009年 | 108篇 |
2008年 | 120篇 |
2007年 | 137篇 |
2006年 | 109篇 |
2005年 | 76篇 |
2004年 | 91篇 |
2003年 | 83篇 |
2002年 | 65篇 |
2001年 | 105篇 |
2000年 | 131篇 |
1999年 | 92篇 |
1998年 | 72篇 |
1997年 | 63篇 |
1996年 | 59篇 |
1995年 | 45篇 |
1994年 | 45篇 |
1993年 | 32篇 |
1992年 | 74篇 |
1991年 | 66篇 |
1990年 | 60篇 |
1989年 | 60篇 |
1988年 | 72篇 |
1987年 | 55篇 |
1986年 | 76篇 |
1985年 | 68篇 |
1984年 | 52篇 |
1983年 | 66篇 |
1982年 | 51篇 |
1981年 | 37篇 |
1979年 | 48篇 |
1978年 | 47篇 |
1977年 | 34篇 |
1976年 | 37篇 |
1975年 | 29篇 |
1974年 | 30篇 |
1973年 | 33篇 |
排序方式: 共有5348条查询结果,搜索用时 328 毫秒
1.
Jonathan S. Jones Anna-Lynne R. Adlam Abdelmalek Benattayallah Fraser N. Milton 《Child development》2022,93(3):815-830
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.
Daniel C. Kopala-Sibley Marilyn Cyr Megan C. Finsaas Jonathan Orawe Anna Huang Nim Tottenham Daniel N. Klein 《Child development》2020,91(1):110-128
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.
Diego Pastor María Campayo-Piernas Jesús Tadeo Pastor 《Journal of sports sciences》2019,37(12):1403-1410
Classification is a defining feature of Para-sport, and sports-specific classification systems determined through multidisciplinary scientific research are required, i.e., evidence-based and focused on the relationship between the impairment and the key performance determinants. Data envelopment analysis (DEA) was applied as a classification tool using a directional distance function (DDF) model. The aim of the study was to test the DEA as a possible classification tool in cerebral palsy football. We analyse the performance of 56 international para-footballers with hypertonia, ataxia or athetosis, who completed a 20-test battery with DEA models. Five of the tests are included in the model (change of direction: Illinois agility test; jumping: standing broad jump, four bounds for distance, and triple hop with the non-dominant leg; 10-m sprint/acceleration; and ball dribbling, both in a straight line and following a trajectory), showing that players with less impairment exhibit the highest efficiency. This outcome suggests that DEA models might be feasible for detecting and discriminating the performance and magnitude of impairment in cerebral palsy football, with an objective ranking of the athletes in relation to different physical performance tests. This study also provides reference scores for decision-making during classification and guidance for further research in team Paralympic sports. 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