全文获取类型
收费全文 | 112篇 |
免费 | 1篇 |
专业分类
教育 | 68篇 |
科学研究 | 16篇 |
各国文化 | 1篇 |
体育 | 16篇 |
文化理论 | 4篇 |
信息传播 | 8篇 |
出版年
2023年 | 1篇 |
2022年 | 1篇 |
2021年 | 1篇 |
2020年 | 3篇 |
2019年 | 6篇 |
2018年 | 15篇 |
2017年 | 5篇 |
2016年 | 3篇 |
2015年 | 5篇 |
2014年 | 4篇 |
2013年 | 24篇 |
2012年 | 6篇 |
2011年 | 5篇 |
2010年 | 2篇 |
2009年 | 3篇 |
2008年 | 4篇 |
2006年 | 1篇 |
2005年 | 2篇 |
2004年 | 4篇 |
2003年 | 4篇 |
2002年 | 1篇 |
2001年 | 1篇 |
1999年 | 2篇 |
1994年 | 1篇 |
1991年 | 1篇 |
1985年 | 1篇 |
1983年 | 3篇 |
1975年 | 1篇 |
1973年 | 2篇 |
1972年 | 1篇 |
排序方式: 共有113条查询结果,搜索用时 15 毫秒
21.
22.
Baldwin King‡ K. E. Magnus James W. Smith 《International Journal of Science Education》2013,35(4):407-413
Summaries English An outline is given of a programme in applied chemistry within a classical chemistry department of a university located in a Third World country with certain specific needs. The curriculum has been specifically designed to provide students with the knowledge and skills used by chemists in Jamaican industry. Industry personnel were invited to participate fully in the development of the curriculum as well as in actual instruction. In this way, an attempt was made to bridge the gap between the ‘academic’ and the ‘real’ world. The Third World has experienced a perennial shortage of skilled professional scientists, including chemical engineers. The role of the applied chemist, as envisaged by the authors, has assumed greater importance in the light of this shortage. The programme outlined can probably serve as a basis for discussion in other developing countries contemplating similar programmes. 相似文献
23.
Katja Uhlig Bj?rn Boysen Andreas Lankenau Magnus Jaeger Erik Wischerhoff Jean-Fran?ois Lutz André Laschewsky Claus Duschl 《Biomicrofluidics》2012,6(2)
Thermoresponsive polymer surface coatings are a promising tool for cell culture applications. They allow for a mild way of cell detachment that preserves the activity of membrane proteins—a prerequisite for reliable cell analysis. To enlarge the application range of these coatings to cells with different adhesion properties, we synthesized various novel poly(ethylene glycol)-based thermoresponsive polymers and describe how (i) their chemical structure and (ii) their surface density affect their efficiency. In order to quantify the influence of both factors, the time for cell spreading and rounding efficiency were observed. As a result, efficiency of cell rounding, which is closely correlated to cell detachment, is less affected by both factors than the time needed for cell spreading. This time can effectively be adjusted by the molecular architecture which includes the length of the polymer backbone and the side chains. Based on this work, recommendations are given for future optimization of functionality of thermoresponsive polymer coatings for cell culture applications. 相似文献
24.
25.
Kirstin Hallmann Cristina Muñiz Artime Christoph Breuer Sören Dallmeyer Magnus Metz 《Journal of Cultural Economics》2017,41(4):467-487
Participation in sport and participation in cultural activities are usually studied separately. However, since both activities dominate the leisure time of most individuals, it is reasonable to analyse simultaneously the determinants of participation in both activities. Informed by the economic household theory, this study examined the core factors of time, income, human capital as well as several socio-demographic factors. The results showed that there was as small but significant correlation between sports and cultural participation. Thus, both can be described as complementary and competing activities. Leisure time, gender, education, nationality and subjective well-being were significant predictors of both sports and cultural participation. Differences were found for the variables age and income. This paper also describes the characteristics of those individuals who are not likely to participate in either activity and emphasises the importance of social inclusion programmes. 相似文献
26.
Dencker M Thorsson O Karlsson MK Lindén C Wollmer P Andersen LB 《Journal of sports sciences》2008,26(13):1397-1402
Maximal oxygen uptake VO(2max)) is considered the optimal method to assess aerobic fitness. The measurement of VO(2max), however, requires special equipment and training. Maximal exercise testing with determination of maximal power output offers a more simple approach. This study explores the relationship between [Vdot]O(2max) and maximal power output in 247 children (139 boys and 108 girls) aged 7.9-11.1 years. Maximal oxygen uptake was measured by indirect calorimetry during a maximal ergometer exercise test with an initial workload of 30 W and 15 W x min(-1) increments. Maximal power output was also measured. A sample (n = 124) was used to calculate reference equations, which were then validated using another sample (n = 123). The linear reference equation for both sexes combined was: VO(2max) (ml x min(-1)) = 96 + 10.6 x maximal power + 3.5 . body mass. Using this reference equation, estimated VO(2max) per unit of body mass (ml x min(-1) x kg(-1)) calculated from maximal power correlated closely with the direct measurement of VO(2max) (r = 0.91, P <0.001). Bland-Altman analysis gave a mean limits of agreement of 0.2+/-2.9 (ml x min(-1) x kg(-1)) (1 s). Our results suggest that maximal power output serves as a good surrogate measurement for VO(2max) in population studies of children aged 8-11 years. 相似文献
27.
This article investigates the prevailing social inertia of vocational training. Previous research indicates that gendered social norms contribute to sustaining gender segregation. Few studies, however, have paid attention to how the interplay of emotional and material factors impact on gender norms in vocational training. The article builds on an ethnographic study in a Swedish upper-secondary educational programme traditionally dominated by masculinity norms, namely the Building and Construction programme. Employing Sara Ahmed's notion of happy objects, the article centres on vocational students' expressed joy in the practical work and shows how joy contributes to sustaining and challenging dominant masculinity patterns. Though students enjoyed practical work, the study indicates that a particular version of happiness was normalised which ruled out non-heterosexual and female students. The article suggests that further studies of social inertia in vocational training need to account for the interconnectedness of the emotional, material, and corporeal dimensions of gender. 相似文献
28.
Rögnvaldur J. Saemundsson Magnus Holmén 《The Journal of High Technology Management Research》2011,22(2):102-113
The paper investigates how technological change in an industry influence which individuals will identify and exploit entrepreneurial opportunities. We propose that the introduction of new development tools will change knowledge-barriers to entry because they enable the abstraction of specialized knowledge that was previously needed for development. Empirically we test the argument using data from the web design industry in a Nordic country during the period 1992–2003. We compare the education and experience of founders before and after the introduction of web administration tools in 1998 and find a significant difference, which supports the main thesis of our argument. 相似文献
29.
30.