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   870篇
  免费   19篇
教育   718篇
科学研究   25篇
各国文化   8篇
体育   46篇
文化理论   3篇
信息传播   89篇
  2023年   3篇
  2022年   7篇
  2021年   12篇
  2020年   16篇
  2019年   22篇
  2018年   36篇
  2017年   50篇
  2016年   45篇
  2015年   25篇
  2014年   24篇
  2013年   207篇
  2012年   28篇
  2011年   25篇
  2010年   25篇
  2009年   26篇
  2008年   16篇
  2007年   26篇
  2006年   20篇
  2005年   11篇
  2004年   19篇
  2003年   10篇
  2002年   15篇
  2001年   9篇
  2000年   13篇
  1999年   13篇
  1998年   5篇
  1997年   14篇
  1996年   8篇
  1995年   12篇
  1994年   11篇
  1993年   12篇
  1992年   9篇
  1991年   7篇
  1990年   12篇
  1989年   12篇
  1988年   11篇
  1987年   5篇
  1986年   6篇
  1984年   3篇
  1983年   5篇
  1981年   4篇
  1980年   7篇
  1979年   4篇
  1978年   6篇
  1976年   4篇
  1974年   3篇
  1973年   2篇
  1972年   4篇
  1967年   2篇
  1956年   2篇
排序方式: 共有889条查询结果,搜索用时 15 毫秒
41.
Will our teacher certification testing program stand up to a court challenge? What are the critical issues the courts consider in examining teacher certification testing? What do we need to do to strengthen our program legally and psychometrically?  相似文献   
42.
Based on quantitative data from the Norwegian Statistisk Sentralbyrå (Statistics Norway) study of Mosjon, Friluftsliv og Kulturaktiviteter, this paper explores trends in Norwegians' participation in sports, with a focus on young people. Norway boasts particularly high levels of sports participation as well as sports club membership and young Norwegians are the quintessential sporting omnivores. Among other things, the Statistics Norway study reveals substantial increases in participation (among young people and females especially) during the period 1997–2007, a shift in the peak of participation to the late teenage years, a relatively high level of lifelong participants, a re-bound effect in the post-child rearing years and a growth in lifestyle sports. Young Norwegians grow up in a socio-economic context of relative equality between the sexes and high standards of living. An abundance of natural and artificial outdoor and indoor sporting facilities alongside a well-established voluntary sports club sector and an elementary school system that emphasizes physical exercise and recreation, as well as high levels of parental involvement, add to the favourable socio-economic conditions to create seemingly optimal circumstances for sports participation. All these reinforce the sporting and physical recreation cultures deeply embedded in Norwegian society and embodied by the very many middle-class parents in a country which, for the time being at least, remains relatively young in demographic terms. In terms of lessons to be learned for policy towards sports and physical education beyond Norway, there may be grounds for some optimism around parental involvement in children's sport as well as the potential appeal of lifestyle sports. That said, it is likely to be the greater socio-economic equalities in Scandinavian countries such as Norway that make them unrealistic benchmarks for sports participation elsewhere.  相似文献   
43.
Science & Education - The purpose of this study is to identify and analyze meanings that the term complexity assumes in Brazilian theses and dissertations in the field of environmental...  相似文献   
44.
We present a variant of the Game of Pig to introduce the concepts of probability, simulation and expected value.  相似文献   
45.
46.
47.
The Open Access movement of the past decade, and institutional repositories developed by universities and academic libraries as a part of that movement, have openly challenged the traditional scholarly communication system. This article examines the growth of repositories around the world, and summarizes a growing body of evidence of the response of academics to institutional repositories. It reports the findings of a national survey of academics which highlights the conflict between the principles and rewards of the traditional scholarly communication system, and the benefits of Open Access. The article concludes by suggesting ways in which academic libraries can alleviate the conflict between these two paradigms.  相似文献   
48.
We compared cardiorespiratory responses to exercise on an underwater treadmill (UTM) and land treadmill (LTM) and derived an equation to estimate oxygen consumption (VO2) during UTM exercise. Fifty-five men and women completed one LTM and five UTM exercise sessions on separate days. The UTM sessions consisted of chest-deep immersion, with 0, 25, 50, 75, and 100% water-jet resistance. All session treadmill velocities increased every 3 min from 53.6 to 187.8 m x min(-1). Cardiorespiratory responses were similar between LTM and UTM when jet resistance for UTM was 50%. Using multiple regression analysis, weight-relative VO2 could be estimated as: VO2 (mLO2 c kg(-1) x min(-1)) = 0.19248 x height (cm) + 0.17422 x jet resistance (% max) + 0.14092 x velocity (m x min(-1)) -0.12794 x weight (kg)-27.82849, R2 = .82. Our data indicate that similar LTM and UTM cardiorespiratory responses are achievable, and we provide a reasonable estimate of UTM VO2.  相似文献   
49.
All women should be allowed and encouraged to bring a loved one, friend, or doula to their birth without financial or cultural barriers. Continuous labor support offers benefits to mothers and their babies with no known harm. This article is an updated evidence-based review of the “Lamaze International Care Practices that Promote Normal Birth, Care Practice #3: Continuous Labor Support,” published in The Journal of Perinatal Education, 16(3), 2007.  相似文献   
50.
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