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   702篇
  免费   11篇
教育   547篇
科学研究   18篇
各国文化   10篇
体育   80篇
综合类   1篇
文化理论   8篇
信息传播   49篇
  2022年   4篇
  2021年   8篇
  2020年   11篇
  2019年   16篇
  2018年   25篇
  2017年   30篇
  2016年   28篇
  2015年   16篇
  2014年   21篇
  2013年   164篇
  2012年   20篇
  2011年   19篇
  2010年   15篇
  2009年   19篇
  2008年   14篇
  2007年   22篇
  2006年   13篇
  2005年   15篇
  2004年   11篇
  2003年   13篇
  2002年   15篇
  2001年   9篇
  2000年   12篇
  1999年   6篇
  1998年   6篇
  1997年   11篇
  1996年   5篇
  1994年   12篇
  1993年   15篇
  1992年   4篇
  1991年   12篇
  1990年   4篇
  1989年   6篇
  1988年   5篇
  1987年   7篇
  1986年   5篇
  1985年   4篇
  1983年   7篇
  1982年   4篇
  1981年   6篇
  1980年   6篇
  1979年   5篇
  1978年   10篇
  1976年   6篇
  1974年   10篇
  1973年   3篇
  1972年   3篇
  1971年   3篇
  1969年   3篇
  1967年   3篇
排序方式: 共有713条查询结果,搜索用时 16 毫秒
141.
Despite the effectiveness of peer-led health programs, few studies have been focused on the experiences of the peer mentors involved in such programs. The purpose of the current study was to explore the experiences of peer mentors involved in a peer-led physical activity program for students with mental health concerns, namely anxiety and depression. Participants were eight former peer mentors from a mid-size university who completed interviews regarding their motivation for serving as a peer mentor and the ways in which the program influenced them both during and after the program ended. Findings from an integrative analysis demonstrated that the mentors grew personally, professionally, and interpersonally from their participation. Further, mentors’ experiences could be explained by the self-determination theory.  相似文献   
142.
Current general restrictions on performance-enhancing drugs (PEDs) pose a collective action problem that cannot be solved and bring a variety of adverse consequences for sport. General prohibitions of PEDs are grounded in claims that they violate the integrity of sport. But there are decisive arguments against integrity of sport-based prohibitions of PEDs for elite sport. We defend a harm prevention approach to PED prohibition as an alternative. This position cannot support a general ban on PEDs, since it provides no basis for prohibiting non-harmful PED use. We argue that a harm prevention approach to restricting PEDs is ethically justified, has better prospects of compliance, is consistent with respecting the integrity of sport, and holds at least a modest prospect of resolving the collective action problem around PED restriction.  相似文献   
143.
144.

Children's responses to a series of air pressure activities were tracked in detail during group discussion and interview, and again in interview six months later. Results for different age cohorts have yielded insights into age‐related knowledge components framing children's conceptions of air pressure phenomena. Case studies of individuals have been constructed to explore the way conceptions change over time, and the difficulties presented by the concept of atmospheric pressure. These are used to evaluate different structural theories of conceptual change. The findings point to the complexity of children's conceptions, the stability and extension over time of productive conceptions, and the critical role of contextual features of phenomena in the conceptual change process. Although structural aspects of changes in concepts related to air pressure are identified, the difficulty of accessing the atmospheric pressure conception is argued to have more to do with presupposition based in perceptual features of air, and with difficulties associated with the application to particular phenomena.  相似文献   
145.
146.
This paper explores the nature and type of evidence employed by participants in an issue of public concern. By examining documents and interviewing members of the public involved in the debate, the way in which evidence was used in the arguments for and against the issue was determined. Three dimensions of evidence emerged from the data: formal scientific evidence based on the data; informal evidence (e.g. common sense, personal experience) and wider issues which impinge on the evidence (e.g. environmental or legal concerns). In this particular controversy, it was the questioning of the formal evidence by local scientists which became the 'magic bullet' but pertinent questioning by local nonscientists also framed the debate. The authors suggest that school science curricula should include practice in questioning and manipulating different sorts of real data in a variety of ways so that pupils are equipped and empowered to tackle contemporary issues of this kind.  相似文献   
147.
148.
149.
150.

A group of students were interviewed about their experiences in pursuing independent research projects with a view to building up a picture of autonomous student behaviour in the pursuit of expressed interests. In each case the students were led to autonomous behaviour beyond that normally expected in school science. In quite a few cases the independence and commitment shown were remarkable, and matched by a coherent personal philosophy that valued such behaviour. The range of objects and their sources were varied, but school and teachers had surprisingly little impact on either the topics chosen or the progress of the project. Most encouragement and support was found within the home environment. The projects proved in many cases to be major vehicles for knowledge acquisition, and it is argued that the knowledge was gained in a more valid way than is generally the case in school science.  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