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Sara Delamont Amanda Coffey Paul Atkinson 《International journal of qualitative studies in education》2013,26(3):223-238
The growth and variety of qualitative research in education is used as a test case to challenge the narrative of ethnography proposed by Denzin and Lincoln. Their characterization of qualitative methods in terms of five (subsequently six) ''moments'' is not reflected in research on education. Ironically, their model is shown to be a modernist narrative that does not do justice do the diversity of qualitative research in the past. It is suggested that qualitative research has always been marked by greater diversity than is captured in unilinear developmental histories. 相似文献
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The aim of the present study was to determine the effect of post-exercise ingestion of a unique, high molecular weight glucose polymer solution, known to augment gastric emptying and post-exercise muscle glycogen re-synthesis, on performance during a subsequent bout of intense exercise. On three randomized visits, eight healthy men cycled to exhaustion at 73.0% (s = 1.3) maximal oxygen uptake (90 min, s = 15). Immediately after this, participants consumed a one-litre solution containing sugar-free flavoured water (control), 100 g of a low molecular weight glucose polymer or 100 g of a very high molecular weight glucose polymer, and rested on a bed for 2 h. After recovery, a 15-min time-trial was performed on a cycle ergometer, during which work output was determined. Post-exercise ingestion of the very high molecular weight glucose polymer solution resulted in faster and greater increases in blood glucose (P < 0.001) and serum insulin (P < 0.01) concentrations than the low molecular weight glucose polymer solution, and greater work output during the 15-min time-trial (164.1 kJ, s = 21.1) than both the sugar-free flavoured water (137.5 kJ, s = 24.2; P < 0.05) and the low molecular weight glucose polymer (149.4 kJ, s = 21.8; P < 0.05) solutions. These findings could be of practical importance for athletes wishing to optimize performance by facilitating rapid re-synthesis of the muscle glycogen store during recovery following prolonged sub-maximal exercise. 相似文献
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Tertiary Education and Management - This article reviews the literature on the experiences of working-class students at different stages of the student life cycle. It examines the factors... 相似文献