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   437篇
  免费   10篇
  国内免费   1篇
教育   366篇
科学研究   12篇
各国文化   6篇
体育   17篇
信息传播   47篇
  2022年   4篇
  2021年   4篇
  2020年   7篇
  2019年   6篇
  2018年   11篇
  2017年   18篇
  2016年   10篇
  2015年   12篇
  2014年   14篇
  2013年   118篇
  2012年   19篇
  2011年   18篇
  2010年   8篇
  2009年   14篇
  2008年   15篇
  2007年   14篇
  2006年   13篇
  2005年   9篇
  2004年   11篇
  2003年   9篇
  2002年   11篇
  2001年   5篇
  2000年   12篇
  1999年   7篇
  1998年   11篇
  1997年   3篇
  1996年   3篇
  1995年   2篇
  1994年   5篇
  1993年   3篇
  1992年   5篇
  1991年   3篇
  1990年   5篇
  1989年   4篇
  1988年   1篇
  1987年   2篇
  1986年   3篇
  1985年   2篇
  1984年   1篇
  1983年   3篇
  1982年   4篇
  1981年   2篇
  1980年   3篇
  1979年   3篇
  1978年   4篇
  1976年   3篇
  1975年   1篇
  1974年   1篇
  1973年   1篇
  1966年   1篇
排序方式: 共有448条查询结果,搜索用时 15 毫秒
131.
Objective:The decisions and processes that may compose a systematic search strategy have not been formally identified and categorized. This study aimed to (1) identify all decisions that could be made and processes that could be used in a systematic search strategy and (2) create a hierarchical framework of those decisions and processes.Methods:The literature was searched for documents or guides on conducting a literature search for a systematic review or other evidence synthesis. The decisions or processes for locating studies were extracted from eligible documents and categorized into a structured hierarchical framework. Feedback from experts was sought to revise the framework. The framework was revised iteratively and tested using recently published literature on systematic searching.Results:Guidance documents were identified from expert organizations and a search of the literature and Internet. Data were extracted from 74 eligible documents to form the initial framework. The framework was revised based on feedback from 9 search experts and further review and testing by the authors. The hierarchical framework consists of 119 decisions or processes sorted into 17 categories and arranged under 5 topics. These topics are “Skill of the searcher,” “Selecting information to identify,” “Searching the literature electronically,” “Other ways to identify studies,” and “Updating the systematic review.”Conclusions:The work identifies and classifies the decisions and processes used in systematic searching. Future work can now focus on assessing and prioritizing research on the best methods for successfully identifying all eligible studies for a systematic review.  相似文献   
132.
The meaning of civility is culturally dependent—as are the rules associated with the term. If museums and their staff want to welcome all peoples, then the rules of civil behavior have to change to reflect that intention. Yet museums have mostly lived with the traditional, class‐dependent notion of etiquette. The area that the concept of civility should be concerned with covers our interactions in spheres generally considered separable: public behavior; staff behavior; content behavior; community relations. Museums would do well to examine those behavioral elements that have been assumed to be self‐evident: like not talking in the library (whereas there are now talking‐based rooms). Normative behavior is always changing, but interestingly, as it changes, it generally remains mostly in the service of peaceful outcomes. I am suggesting that direct interrogation of our unexamined rules about interactions with each other in every context—and adjusting them to reflect a changed society—might be more significant than previously assumed.  相似文献   
133.
Walking is a safe, accessible and low cost activity, amenable to change and known to have great potential to increase physical activity levels in sedentary individuals. The objective of this study is to estimate the proportion of the 2009 adult population of England who would attain or exceed vigorous intensity activity (>70% maximum heart rate [HR(max)]) by walking at 3 mph. We conducted predictive impact modelling using participants' (n = 1741, aged 25-64 years) cardiovascular fitness data from treadmill walking tests. We combined this data with English population estimates adjusted for age and sex to estimate the numbers of individuals that would exceed 70% HR(max) (an intensity considered sufficient for fitness gains) when walking at 3 mph (4.8 km · h(-1)). We estimate 1.5 million men (95% confidence interval [CI] 0.9-2.2 million) (from 13.4 million corresponding to 11.6% (95% CI 7.0-16.2%)) and 3.9 million women (95% CI 3.0-4.8 million) (from 13.6 million corresponding to 28.6% (95% CI 22.0-35.1%)) in England aged 25-64 years would benefit from regularly walking at 3 mph. In total, a projected 5.4 million individuals (95% CI 3.9-6.9 million) aged 25-64 (from 26.97 million corresponding to 20.1% (95% CI 14.6-25.7%)) could benefit from walking at 3 mph. Our estimates suggest a considerable number of individuals in the English population could receive fitness and health benefits by walking regularly at 3 mph. Physical activity messages that promote walking at this speed may therefore have the potential to significantly impact national fitness levels and health in England.  相似文献   
134.
Knowledge Management Research & Practice - Information and knowledge have been cited over the last two decades as competitive advantage tools. Recently, the use of them has been discussed to...  相似文献   
135.
136.
137.
138.
139.
140.
Developing curricular materials for technical and vocational education is particularly challenging because of the comprehensive requirements for technical education and the rapidity with which technical positions are evolving. Well-educated employees are expected to have general communication, reasoning, problem-solving, and behavioral skills in addition to occupation-specific technical knowledge. Furthermore, technical and vocational education materials must meet the needs of various contexts each with its own unique array of factors which must be accommodated. To assist in the process of materials development, this paper presents a comprehensive and contextualized model as a guide for curricular developers. This model was formed through the synthesis of two theoretical and four applied models, with the outline of the applied models occurring as part of a national evaluation of the National Science Foundation’s Advanced Technological Education Program. Examples illuminating the elements of the template are provided.  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