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   2212篇
  免费   51篇
教育   1591篇
科学研究   161篇
各国文化   37篇
体育   205篇
综合类   1篇
文化理论   14篇
信息传播   254篇
  2023年   10篇
  2022年   15篇
  2021年   22篇
  2020年   49篇
  2019年   99篇
  2018年   96篇
  2017年   100篇
  2016年   76篇
  2015年   52篇
  2014年   74篇
  2013年   476篇
  2012年   51篇
  2011年   62篇
  2010年   44篇
  2009年   52篇
  2008年   49篇
  2007年   45篇
  2006年   58篇
  2005年   36篇
  2004年   40篇
  2003年   45篇
  2002年   37篇
  2001年   33篇
  2000年   41篇
  1999年   35篇
  1998年   22篇
  1997年   24篇
  1996年   16篇
  1995年   19篇
  1994年   25篇
  1993年   22篇
  1992年   27篇
  1991年   16篇
  1990年   15篇
  1989年   24篇
  1988年   18篇
  1987年   18篇
  1986年   17篇
  1985年   15篇
  1984年   17篇
  1983年   14篇
  1981年   16篇
  1980年   11篇
  1979年   19篇
  1978年   10篇
  1977年   9篇
  1974年   8篇
  1972年   8篇
  1927年   8篇
  1926年   10篇
排序方式: 共有2263条查询结果,搜索用时 15 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.
In this article we examine the complex relationship between care experience, mental health and exclusion from school and how young people (YP) negotiate these different experiences and identities. The study is a secondary analysis, informed by symbolic interactionist theory, of interviews conducted with 19 care experienced YP in Scotland. Not all of the YP were excluded and not all had a formal mental health diagnosis, as such our study design allows interrogation of the contexts and relationships which not only facilitate but also disrupt pathways to exclusion. It also allows reconsideration of assumptions of vulnerability which are often applied to care experienced YP. Our findings suggest that these YP are moving beyond ‘role playing’ the identities ascribed to them and actively seek out relationships which enable them to construct alternative identities.  相似文献   
3.
Abstract

Carnosine was originally discovered in skeletal muscle, where it exists in larger amounts than in other tissues. The majority of research into the physiological roles of carnosine have been conducted on skeletal muscle. Given this and the potential for muscle carnosine content to be increased with supplementation, there is now a large body of research examining the ergogenic effects (or otherwise) of carnosine. More recent research, however, points towards a potential for carnosine to exert a wider range of physiological effects in other tissues, including the brain, heart, pancreas, kidney and cancer cells. Taken together, this is suggestive of a potential for carnosine to have therapeutic benefits in health and disease, although this is by no means without complication. Herein, we will provide a review of the current literature relating to the potential therapeutic effects of carnosine in health and disease.  相似文献   
4.
Abstract

In an economic climate when colleges can no longer presume that legislators see institutions of higher learning as tacit public goods, institutions around the country are facing budget cuts. This article presents a case study of the experience of a mid-sized public state university and its Library in a budget crisis undergoing a university-wide program prioritization process. The authors review the process of writing three reports on the Library’s value, along with the approach to engaging staff in the process including a retreat. This article raises questions about what every library should consider assessing and provide tools for libraries navigating similar terrain.  相似文献   
5.
6.
7.
8.
9.
10.
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