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Chère Campbell Gibson 《The American journal of distance education》2013,27(1):23-36
Abstract Academic self‐concept has been demonstrated to influence student success in distance education. The purpose of this study was to examine the nature of academic self‐concept in distance education and to determine its enhancers and detractors. It was determined that this construct is dynamic and multi‐faceted: the process of both learning as an adult and learning at a distance, as well as the content studied, influences academic self‐concept. Implications for both practice and further research are discussed. 相似文献
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Campbell CD 《American annals of the deaf》1999,144(5):365-372
The Central Asylum for the Instruction of the Deaf and Dumb, Canajoharie, NY, was a public school for the Deaf that existed from 1823 to 1835. Little has been written about it. This study draws upon as much information as appears to be available on the history of this school. The history of the Central Asylum adds to the understanding of the beginnings of public education for the Deaf in the United States. 相似文献
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The aims of this study were to examine and compare selected physiological and metabolic responses of wheelchair athletes in two paraplegic racing classes [T3: n = 8 (lesion levels T1-T7; paraplegics); T4: n = 9 (lesion levels below T7; paraplegics)] to prolonged exercise. In addition, we describe the responses of three tetraplegic athletes [T2: n = 3 (lesion levels C6/C7: tetraplegics)]. Twenty athletes completed 90 min of exercise at 75% VO2peak on a motorized treadmill adapted for wheelchairs. The mean (+/- s) heart rates of the T3 and T4 racing classes were 165 +/- 2 and 172 +/- 6 beats.min-1, respectively. For the T4 racing class, heart rate gradually increased during the test (P < 0.05), whereas for the T3 racing class, heart rate reached a plateau after an initial increase. The mean heart rate of the tetraplegics was 114 +/- 3 beats.min-1. The T3 and T4 classes exhibited similar respiratory exchange ratios, plasma lactate and glucose concentrations throughout the test. For both the T3 and T4 racing class, free fatty acid, glycerol, ammonia, urea and potassium concentrations had increased from resting values by the end of the test (P < 0.05). In conclusion, the results of this study suggest that endurance-trained wheelchair athletes are able to maintain velocities equivalent to the same relative exercise intensity (75% VO2peak) for prolonged periods irrespective of lesion level. 相似文献
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