全文获取类型
收费全文 | 212篇 |
免费 | 0篇 |
专业分类
教育 | 111篇 |
科学研究 | 62篇 |
各国文化 | 2篇 |
体育 | 21篇 |
文化理论 | 1篇 |
信息传播 | 15篇 |
出版年
2022年 | 3篇 |
2021年 | 3篇 |
2020年 | 3篇 |
2019年 | 4篇 |
2018年 | 2篇 |
2017年 | 6篇 |
2016年 | 2篇 |
2015年 | 5篇 |
2014年 | 2篇 |
2013年 | 41篇 |
2012年 | 2篇 |
2011年 | 3篇 |
2010年 | 2篇 |
2009年 | 2篇 |
2008年 | 3篇 |
2005年 | 3篇 |
2003年 | 3篇 |
2002年 | 3篇 |
2001年 | 2篇 |
2000年 | 5篇 |
1999年 | 4篇 |
1998年 | 3篇 |
1996年 | 2篇 |
1995年 | 3篇 |
1993年 | 4篇 |
1992年 | 2篇 |
1988年 | 2篇 |
1985年 | 2篇 |
1983年 | 3篇 |
1981年 | 2篇 |
1979年 | 2篇 |
1978年 | 4篇 |
1977年 | 3篇 |
1976年 | 2篇 |
1975年 | 3篇 |
1938年 | 2篇 |
1922年 | 2篇 |
1918年 | 2篇 |
1890年 | 1篇 |
1882年 | 2篇 |
1880年 | 1篇 |
1872年 | 1篇 |
1871年 | 1篇 |
1870年 | 3篇 |
1868年 | 6篇 |
1867年 | 3篇 |
1866年 | 3篇 |
1859年 | 3篇 |
1844年 | 2篇 |
1841年 | 1篇 |
排序方式: 共有212条查询结果,搜索用时 0 毫秒
211.
Bjorge Herman Hansen Ingvild Børtnes Maria Hildebrand Ingar Holme Elin Kolle Sigmund Alfred Anderssen 《Journal of sports sciences》2013,31(6):510-516
AbstractThe ActiGraph activity monitors have developed and newer versions of the ActiGraph accelerometers (GT1M, GT3X and GT3X +) are now available, including changes in hardware and software compared to the old version (AM7164). This is problematic as most of the validation and calibration work includes the AM7164. The aims of the study were to validate the ActiGraph GT1M during level and graded walking and to assess the potential underestimation of physical activity during cycling. Data were obtained from 20 participants during treadmill walking and ergometer cycling. Energy expenditure was measured via indirect calorimetry and used as the criterion method. Activity counts were highly correlated with energy expenditure during level walking (R2 = 0.82) and graded walking at 5% and 8% (R2 = 0.82 and R2 = 0.67, respectively). There was no linear relationship between activity counts and energy expenditure during cycling. The average activity counts for all data points during cycling was 1,157 counts per minute (CPM) (SD = 974), and mean energy expenditure was 5.0 metabolic equivalents. The GT1M is a valid tool for assessing walking across a wide range of speeds and gradients. However, there is no relationship between activity counts and energy expenditure during cycling and physical activity is underestimated by ≈73% during cycling compared to walking. 相似文献
212.
The authors take issue with Reger's (1978) response to their position on alternatives for the education of the severely and profoundly retarded. Their position continues to be that only through seeking alternatives other than the dispersal of this population in the public schools can an appropriate education be provided. 相似文献