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   2646篇
  免费   75篇
  国内免费   3篇
教育   2055篇
科学研究   75篇
各国文化   73篇
体育   150篇
文化理论   20篇
信息传播   351篇
  2023年   30篇
  2022年   31篇
  2021年   61篇
  2020年   88篇
  2019年   129篇
  2018年   185篇
  2017年   190篇
  2016年   163篇
  2015年   101篇
  2014年   125篇
  2013年   557篇
  2012年   92篇
  2011年   71篇
  2010年   50篇
  2009年   71篇
  2008年   78篇
  2007年   63篇
  2006年   51篇
  2005年   59篇
  2004年   64篇
  2003年   46篇
  2002年   32篇
  2001年   22篇
  2000年   28篇
  1999年   30篇
  1998年   15篇
  1997年   15篇
  1996年   19篇
  1995年   24篇
  1994年   7篇
  1993年   13篇
  1992年   7篇
  1991年   11篇
  1990年   11篇
  1989年   8篇
  1988年   11篇
  1987年   5篇
  1986年   11篇
  1985年   9篇
  1984年   5篇
  1983年   10篇
  1982年   5篇
  1981年   7篇
  1980年   9篇
  1979年   6篇
  1978年   14篇
  1977年   6篇
  1975年   9篇
  1973年   5篇
  1943年   5篇
排序方式: 共有2724条查询结果,搜索用时 31 毫秒
91.
BackgroundDespite the well-established health benefits of physical activity (PA) for young people (aged 4–19 years), most do not meet PA guidelines. Policies that support PA in schools may be promising, but their impact on PA behavior is poorly understood. The aim of this systematic review was to ascertain the level and type of evidence reported in the international scientific literature for policies within the school setting that contribute directly or indirectly to increasing PA.MethodsThis systematic review is compliant with Preferred Reporting Items for Systematic Review and Meta-Analysis guidelines. Six databases were searched using key concepts of policy, school, evaluation, and PA. Following title and abstract screening of 2323 studies, 25 progressed to data synthesis. Methodological quality was assessed using standardized tools, and the strength of the evidence of policy impact was described based on pre-determined codes: positive, negative, inconclusive, or untested statistically.ResultsEvidence emerged for 9 policy areas that had a direct or indirect effect on PA within the school setting. These were whole school PA policy, physical education, sport/extracurricular PA, classroom-based PA, active breaks/recess, physical environment, shared use agreements, active school transport, and surveillance. The bulk of the evidence was significantly positive (54%), 27% was inconclusive, 9% was significantly negative, and 11% was untested (due to rounding, some numbers add to 99% or 101%). Frequency of evidence was highest in the primary setting (41%), 34% in the secondary setting, and 24% in primary/secondary combined school settings. By policy area, frequency of evidence was highest for sport/extracurricular PA (35%), 17% for physical education, and 12% for whole school PA policy, with evidence for shared use agreements between schools and local communities rarely reported (2%). Comparing relative strength of evidence, the evidence for shared use agreements, though sparse, was 100% positive, while 60% of the evidence for whole school PA policy, 59% of the evidence for sport/extracurricular PA, 57% of the evidence for physical education, 50% of the evidence for PA in classroom, and 50% of the evidence for active breaks/recess were positive.ConclusionThe current evidence base supports the effectiveness of PA policy actions within the school setting but cautions against a “one-size-fits-all” approach and emphasizes the need to examine policy implementation to maximize translation into practice. Greater clarity regarding terminology, measurement, and methods for evaluation of policy interventions is needed.  相似文献   
92.
Technological advancements in the workplace frequently have produced contradictory effects by facilitating accessibility and efficiency while increasing interruptions and unpredictability. We combine insights from organizational paradoxes and the job demands–resources model to construct a framework identifying positive and negative mechanisms in the relationship between communication technology use (CTU) and employee well-being, operationalized as work engagement and burnout. In this study of Dutch workers, we demonstrate that CTU increases well-being through positive pathways (accessibility and efficiency) and decreases well-being through negative pathways (interruptions and unpredictability). We highlight the importance of (1) investigating CTU resources and demands simultaneously to grasp the relationship between CTU and employee well-being, and (2) considering CTU's downsides to successfully implement new communication technologies and flexible work designs.  相似文献   
93.
94.
Working with robots is an attractive possibility for educators at many levels. The price and availability of robotic hardware are favorable, there are often examples in the media of school groups doing robotic projects, and the projects support group design and co-operative activity. Still, these projects cannot be organized without considerable effort. In this article, we look at some of the opportunities and pitfalls that are encountered when working with robots in an educational setting, illustrating them with anecdotes from our experience with eight small robot-building projects, with participants ranging in age from nine to adult, and duration ranging from a single day to a full semester. We suggest some of the benefits of these projects and outline the problems organizers and participants will be likely to face.  相似文献   
95.
96.
97.
This analysis of activists' and bureaucrats' politicking for gender policy in Australia demonstrates the utility of discourse analysis. Feminist policy initiatives are special: they challenge hegemony and they circulate counter discourse. Policy elites try to manage and discredit them. Traditional policy frameworks are used to identify policy with policy mechanisms, policy communities, value shifts and the like. But the use of policy discourse analysis for this Australian story elicits key strategies for constructing and managing a counter narrative and maintaining a counter public of outsiders using insiders to institutionalize gender policies even as equity and social justice value priorities recede.  相似文献   
98.
2005年图书馆软件行业的重新洗牌,昭示了如今的风云变幻、吐故纳新乃至沧桑巨变。2006年图书馆集成管理系统(ILS)产业稳步发展,总收入从2005年的大约5.35亿美元提高到了2006年的5.7亿美元。一些公司ILS核心产品的收入在减少,而基于Web界面和电子内容管理的新产品收入在增加。无  相似文献   
99.
100.
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