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   1766篇
  免费   31篇
  国内免费   1篇
教育   1467篇
科学研究   39篇
各国文化   30篇
体育   74篇
综合类   2篇
文化理论   4篇
信息传播   182篇
  2023年   8篇
  2022年   14篇
  2021年   27篇
  2020年   24篇
  2019年   59篇
  2018年   59篇
  2017年   76篇
  2016年   65篇
  2015年   40篇
  2014年   61篇
  2013年   389篇
  2012年   49篇
  2011年   51篇
  2010年   48篇
  2009年   63篇
  2008年   49篇
  2007年   49篇
  2006年   45篇
  2005年   38篇
  2004年   57篇
  2003年   48篇
  2002年   40篇
  2001年   19篇
  2000年   32篇
  1999年   30篇
  1998年   24篇
  1997年   30篇
  1996年   20篇
  1995年   24篇
  1994年   19篇
  1993年   19篇
  1992年   17篇
  1991年   15篇
  1990年   16篇
  1989年   14篇
  1988年   13篇
  1987年   10篇
  1986年   13篇
  1985年   16篇
  1984年   12篇
  1983年   15篇
  1982年   8篇
  1981年   7篇
  1979年   4篇
  1978年   7篇
  1976年   7篇
  1975年   4篇
  1973年   5篇
  1955年   4篇
  1954年   4篇
排序方式: 共有1798条查询结果,搜索用时 328 毫秒
1.
Berichtigung     
  相似文献   
2.
1. 儿童青少年运动员应该食用多样化的食物,其中,蛋白质应占膳食总能量的12%-15%,碳水化合物至少占55%,而脂肪至多占30%。日常生活中如何吃才能满足这些要求呢?膳食指南宝塔提供了一条可行之道。2.有些营养素对热爱运动的儿童青少年运动员非常重要,要保证摄入充足,这些营养素是碳水化合物(包括纤维素)、维生素B6、维生素D、铁、钙、镁、锌、铬。科学合理、包罗各类食物的平衡膳食,对青少年运动员最大程度地全面摄取各种营养素,满足生长发育和运动训练的需要,是非常必要的。3.鼓励儿童青少年运动员在运动训练前、中、后进行补液,以避免脱水的发生。4.如果膳食合理平衡,就没必要额外补充营养品。  相似文献   
3.
This commentary highlights several important contributions of the Carr & Claxton article as well as issues that need further clarification. It examines the concept of dispositions as a focus of learning and assessment, the procedures proposed for assessing dispositions and the implications of different functions of assessment for the construction and use of portfolios.  相似文献   
4.
5.
This investigation identifies demographic, media, and social correlates of verbally aggressive communication in adolescence. Mail surveys were completed and returned by 2,300 adolescents between the ages of 13 and 15. These adolescents were asked about the prevalence of verbal and physical aggression, the context in which it occurred, demographics, and the interpersonal and media influences in their lives. The results indicate that verbal aggression is widespread, that committing and experiencing verbal aggression is largely reciprocal, that there is a strong relationship between committing verbal and physical aggression, and that peer social influence and listening to violently oriented music are mildly related to verbal aggression in adolescents. These findings suggest more resources should be allocated to teaching adolescents to understand and control verbal aggression. Further, they provide important answers to many prevention and intervention programmatic questions, including context, content, and targeting concerns. Since the negative consequences of verbal aggression are severe and long lasting, decreasing this destructive communication behavior should significantly improve the lives of many adolescents. These and other practical implications are expanded upon and discussed.  相似文献   
6.
7.
Jenny Morris, freelance researcher, David Abbott, research associate at the Norah Fry Research Centre at the University of Bristol, and Linda Ward, Director of the Norah Fry Research Centre at the University of Bristol, carried out research to look at whether the current system of legislation and regulation is adequately protecting and promoting the interests of disabled children placed at residential schools. This article summarises some findings from the research which investigated the decision-making processes leading to residential special school placements and explored the involvement of education and social services authorities after placements have been made. The research found that the needs of individual children are not central to these decision-making processes; and that the local authorities who make such placements do not pay sufficient attention to protecting and promoting children's educational or care needs once they have gone away to school. Jenny Morris, David Abbott and Linda Ward indicate some of the ways in which current practice could be improved; make recommendations for future developments; and call for further research into the role of special residential schools in the context of policy on educational and social inclusion.  相似文献   
8.
9.
由于宕机而导致业务中断的情况不断出现,灾难恢复已经成为许多IT经理考虑的头等大事。这种情况在2005年也不例外。自然灾害.人类冲突和经常爆发的安全漏洞攻击都促使各种类型和规模的机构意识到需要实施或提高其综合业务连续性计划.其中包括IT灾难恢复计划。  相似文献   
10.
This article summarizes the effects of the increasing global trend towards measuring research quality and effectiveness through, in particular, publication‐based metrics, and its effects on scholarly communication. Such metrics are increasingly influencing the behaviour patterns of administrators, publishers, librarians, and researchers. Impact and citation measures, which often rely solely on Thomson Scientific data, are examined in the context of university league tables and research assessment exercises. The need to establish alternate metrics, particularly for the social sciences and humanities, is emphasized, as is an holistic approach to scholarly communication agenda.  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