全文获取类型
收费全文 | 132篇 |
免费 | 0篇 |
专业分类
教育 | 101篇 |
科学研究 | 11篇 |
各国文化 | 2篇 |
体育 | 7篇 |
文化理论 | 2篇 |
信息传播 | 9篇 |
出版年
2023年 | 1篇 |
2022年 | 2篇 |
2020年 | 5篇 |
2019年 | 6篇 |
2018年 | 5篇 |
2017年 | 9篇 |
2016年 | 7篇 |
2015年 | 2篇 |
2014年 | 2篇 |
2013年 | 38篇 |
2012年 | 1篇 |
2011年 | 3篇 |
2010年 | 3篇 |
2007年 | 2篇 |
2005年 | 2篇 |
2004年 | 1篇 |
2003年 | 1篇 |
2002年 | 1篇 |
2001年 | 1篇 |
2000年 | 2篇 |
1998年 | 1篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1988年 | 2篇 |
1987年 | 3篇 |
1985年 | 3篇 |
1984年 | 2篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1980年 | 1篇 |
1978年 | 2篇 |
1970年 | 1篇 |
1969年 | 1篇 |
1966年 | 3篇 |
1963年 | 1篇 |
1962年 | 2篇 |
1961年 | 1篇 |
1960年 | 1篇 |
1957年 | 1篇 |
1955年 | 1篇 |
1927年 | 2篇 |
排序方式: 共有132条查询结果,搜索用时 15 毫秒
32.
Multi-organizational collaborations are increasingly important incontemporary science, but their formative processes have beenneglected by scholars in the social studies of science. Based onan examination of 53 collaborations in physics and relateddisciplines, we have found five types of formations.Collaborations that encountered greater difficulties in formingbecame more formal in their organization and management. 相似文献
33.
George Wesley Perkins 《Journal of The Franklin Institute》1927,203(5):732-733
34.
ABSTRACTIn this essay, we stage a conversation about our experiences researching everyday histories of encounter between Asian and Asian diasporic subjects during the Pacific and Vietnam Wars. Through readings of materials from the archives of two empires, Britain and the United States, with bloody records of military intervention in east and south-east Asia, we show how wartime inter-Asian, Afro-Asian, and Asian diasporic geographies of relation overlapped with and animated one another, helping to (re)produce trans-local communities of affinity over space and time even as they also functioned as infrastructures for empire. Throughout, we reflect on the infrastructures – material, institutional, epistemological, affective – that make inter-referencing possible, both for our subjects and, importantly, for ourselves. If our archives resonate, what does this tell us about the trans-imperial durability of the intimate infrastructures we show taking shape in 1940s China and 1960s Vietnam respectively? 相似文献
35.
36.
37.
The aim of this study was to determine if a potential relationship among physical activity (PA), fundamental movement skills and weight status exists amongst early adolescent youth. Participants were a sample of 85 students; 54 boys (mean age = 12.94 ± 0.33 years) and 31 girls (mean age = 12.75 ± 0.43 years). Data gathered during physical education class included PA (accelerometry), fundamental movement skills and anthropometric measurements. Standard multiple regression revealed that PA and total fundamental movement skill proficiency scores explained 16.5% (P < 0.001) of the variance in the prediction of body mass index. Chi-square tests for independence further indicated that compared with overweight or obese adolescents, a significantly higher proportion of adolescents classified as normal weight achieved mastery/near-mastery in fundamental movement skills. Results from the current investigation indicate that weight status is an important correlate of fundamental movement skill proficiency during adolescence. Aligned with most recent research, school- and community-based programmes that include developmentally structured learning experiences delivered by specialists can significantly improve fundamental movement skill proficiency in youth. 相似文献
38.
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
39.
40.
A framework consisting of a conceptual model and a closed-loop knowledge work outsourcing decision model is developed. A process flow model of a medical device company's product development function is analysed, where this framework is applied to understand various outsourcing options for the company. The conceptual framework describes major attributes related to outsourcing decisions, parameters associated with various attributes and the relationship intensity of parameters with three knowledge work outsourcing options – in-house, near-shoring, and off-shoring. The proposed model is closed loop, emphasizing the importance of regular re-evaluation needed for an off-shored function. The modeling framework contributes to a company's decision whether or not a particular knowledge-based function should either be kept in-house, near-sourced or off-shored. The general perception of off-shoring is to reduce costs but, the proposed model takes into account additional factors such as, market accessibility, strategic partnership, reduced time to regional market, access to overseas talent pool, and governmental incentives, etc. These factors play a vital role in determining an outsourced function. The paper discusses various options and makes recommendations for tapping into technological advancements around the world, their effects on supply chain management and other competitive advantages presented by off-shoring. 相似文献