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Ruby Ethel Cundiff 《Peabody Journal of Education》2013,88(6):259-263
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The aim of this study was to determine the variations in substrate utilization between men and women matched for ventilatory threshold (Tvent) during incremental arm cranking and leg cycling exercise at 70, 85, 100 and 115% of the mode-specific Tvent. Recreationally active men (n=12) and women (n=10) with similar values for percentage of peak oxygen consumption at Tvent participated in the study. Ventilatory equivalence, excess CO2 and modified V-slope methods were used concurrently to determine Tvent. The participants performed 5 min of exercise at each of 70, 85, 100 and 115% Tvent during both arm cranking and leg cycling exercise. The females were tested during the early follicular phase for all trials. A two-way mixed-design analysis of variance was performed to test for differences between the sexes. When carbohydrate and fat oxidation were expressed relative to total fat-free mass, carbohydrate oxidation during arm cranking and leg cycling was significantly higher in men than women at each percentage of Tvent. In contrast, women showed significantly higher fat oxidation across intensities during both arm cranking and leg cycling. Our results suggest that when substrate utilization is expressed relative to total fat-free mass, women appear to maintain a higher rate of fat and lower rate of carbohydrate oxidation than men during both incremental arm cranking and leg cycling exercise relative to Tvent. 相似文献
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Joann E. Linville James Soto Antony Ruby A. Hayden 《Community College Journal of Research & Practice》2013,37(4):330-351
The research reported in this paper examined what role working in a union or nonunion college has in influencing faculty perceptions of control over their work. Using data from the 1993, 1999, and 2004 National Study of Postsecondary Faculty, this study explored the relative importance of variables in influencing perceived control among full-time teaching faculty in unionized and nonunionized community colleges. Union status was not found to be predictive of perceived control. 相似文献
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Stories and poetry have long been considered a resource for the language and literacy development of bilingual children, particularly if they can work with texts in both mother tongue and English. This paper demonstrates that bilingual learning is also beneficial for second and third‐generation children whose English is often stronger than their mother tongue. Presenting data from an action research project in East London primary schools, we show how children investigated metaphor and cultural content in a Bengali lullaby, clarifying concepts through dialogue with their parents. Comparison with a lullaby in English from North America generated additional ideas concerning different cultural values. The learning process enabled children to use their bilingual skills and draw on different aspects of their bicultural identities. Finally, we explain how bilingual poetry can be used to stimulate learning in a multilingual classroom context, through the example of a whole‐class lesson based around Bengali and English lullabies. 相似文献
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