全文获取类型
收费全文 | 348篇 |
免费 | 3篇 |
专业分类
教育 | 262篇 |
科学研究 | 6篇 |
各国文化 | 4篇 |
体育 | 42篇 |
文化理论 | 2篇 |
信息传播 | 35篇 |
出版年
2021年 | 2篇 |
2020年 | 4篇 |
2019年 | 7篇 |
2018年 | 12篇 |
2017年 | 17篇 |
2016年 | 13篇 |
2015年 | 7篇 |
2014年 | 10篇 |
2013年 | 81篇 |
2012年 | 2篇 |
2011年 | 8篇 |
2010年 | 7篇 |
2009年 | 3篇 |
2008年 | 13篇 |
2007年 | 11篇 |
2006年 | 9篇 |
2005年 | 5篇 |
2004年 | 7篇 |
2003年 | 4篇 |
2002年 | 8篇 |
2001年 | 6篇 |
2000年 | 8篇 |
1999年 | 8篇 |
1998年 | 3篇 |
1997年 | 6篇 |
1996年 | 5篇 |
1995年 | 7篇 |
1994年 | 3篇 |
1993年 | 3篇 |
1992年 | 3篇 |
1991年 | 5篇 |
1990年 | 2篇 |
1989年 | 5篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1986年 | 7篇 |
1985年 | 8篇 |
1984年 | 3篇 |
1982年 | 6篇 |
1981年 | 4篇 |
1979年 | 2篇 |
1978年 | 2篇 |
1977年 | 2篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1974年 | 3篇 |
1972年 | 2篇 |
1970年 | 2篇 |
1967年 | 2篇 |
1927年 | 1篇 |
排序方式: 共有351条查询结果,搜索用时 15 毫秒
71.
72.
73.
74.
Duggar DC Christopher KA Tucker BE Jones DA Watson M Puckett M Wood B 《Medical reference services quarterly》1995,14(1):17-32
The current mission statement of the Medical Library Association states that it is "dedicated to improving health through professional excellence and leadership of its members in the ... provision of information services and educational programs ..." With this goal in mind, retractions offer medical librarians a professional challenge to become involved in the scientific process. Through results of a survey conducted among the consortium of South Central Academic Medical Libraries (SCAMeL), this paper reveals opinions on the importance of retraction awareness and who is responsible for disseminating this knowledge. The paper also reports what the Louisiana State University Medical Center at Shreveport Library and other SCAMeL member libraries are doing to promote awareness. 相似文献
75.
Dharini M Bhammar Brandon J Sawyer Wesley J Tucker Jung-Min Lee 《Journal of sports sciences》2016,34(19):1830-1838
We compared SenseWear Armband versions (v) 2.2 and 5.2 for estimating energy expenditure in healthy adults. Thirty-four adults (26 women), 30.1 ± 8.7 years old, performed two trials that included light-, moderate- and vigorous-intensity activities: (1) structured routine: seven activities performed for 8-min each, with 4-min of rest between activities; (2) semi-structured routine: 12 activities performed for 5-min each, with no rest between activities. Energy expenditure was measured by indirect calorimetry and predicted using SenseWear v2.2 and v5.2. Compared to indirect calorimetry (297.8 ± 54.2 kcal), the total energy expenditure was overestimated (P < 0.05) by both SenseWear v2.2 (355.6 ± 64.3 kcal) and v5.2 (342.6 ± 63.8 kcal) during the structured routine. During the semi-structured routine, the total energy expenditure for SenseWear v5.2 (275.2 ± 63.0 kcal) was not different than indirect calorimetry (262.8 ± 52.9 kcal), and both were lower (P < 0.05) than v2.2 (312.2 ± 74.5 kcal). The average mean absolute per cent error was lower for the SenseWear v5.2 than for v2.2 (P < 0.001). SenseWear v5.2 improved energy expenditure estimation for some activities (sweeping, loading/unloading boxes, walking), but produced larger errors for others (cycling, rowing). Although both algorithms overestimated energy expenditure as well as time spent in moderate-intensity physical activity (P < 0.05), v5.2 offered better estimates than v2.2. 相似文献
76.
77.
78.
This article explores the issue of whether lists of characteristics constituting the effective school are universally valid. It argues that the effectiveness or otherwise of schools must be understood contextually as there are significant differences between both the material and ideological contexts of schooling. The article uses the example of South Africa to demonstrate the difficulties in judging schools in one context using criteria developed in another. Three examples of schools that can be considered effective in the context of the new South Africa are described and discussed and the article concludes by arguing that education for peace and democracy is an essential feature of school effectiveness in South Africa. 相似文献
79.
This paper takes a specific issue, the regulation of children's television, and shows how that issue might best be examined. The method of analysis used is the Krasnow‐Longley‐Terry systems approach to broadcast regulation. 相似文献