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11.
Johnston R 《Journal of sports sciences》2008,26(6):563-568
In a recent paper in this journal, Boyko and colleagues (2007) identified differences in attendance and referee bias as factors influencing home advantage at soccer matches in the English Premiership. A replication of their study using more recent data found no evidence to sustain either of their claims. 相似文献
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Ron Maughan 《Journal of sports sciences》2008,26(10):1119-1120
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A high ambient temperature reduces the capacity to perform prolonged exercise. Total carbohydrate oxidation is less, and thus glycogen depletion is not limiting. Fluid ingestion in the heat should, therefore, focus on maintenance of hydration status rather than on substrate provision. Six healthy males cycled to exhaustion at 60% of maximum oxygen consumption (VO2max) with no drink, ingestion of a 15% carbohydrate-electrolyte drink (1.45+/-0.29 litres) or ingestion of a 2% carbohydrate-electrolyte drink (3.12+/-0.47 litres). The ambient temperature was 30.2+/-0.6 degrees C (mean +/- s), with a relative humidity of 71+/-1% and an air speed of approximately 0.7 m x s(-1) on all trials. Weighted mean skin temperature, rectal temperature and heart rate were recorded and venous samples drawn for determination of plasma volume changes, blood metabolites, serum electrolytes and osmolality. Expired gas was collected to estimate rates of fuel oxidation. Exercise capacity was significantly (P < 0.05) different in all trials. The median (range) time to exhaustion was 70.9 min (39.4-97.4 min) in the no-drink trial, 84.0 min (62.7-145 min) in the 15% carbohydrate trial and 118 min (82.6-168 min) in the 2% carbohydrate trial. The 15% carbohydrate drink resulted in significantly (P < 0.05) elevated blood glucose and total carbohydrate oxidation compared with the no-drink trial. The 2% carbohydrate drink restored plasma volume to pre-exercise values by the end of exercise. No differences were observed in other thermoregulatory or cardiorespiratory responses between trials. These results suggest that fluid replacement with a large volume of a dilute carbohydrate drink is beneficial during exercise in the heat, but the precise mechanisms for the improved exercise capacity are unclear. 相似文献
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This article addresses problems facing universities because of external pressures for changes in their teaching, research, and governance and management policies and practices to align them with public policies. The view is put that governments are introducing public policies in times of economic recession to achieve rationalisation of human, physical and financial resources in higher education and to foster initiatives that shape university teaching and research to serve the needs of society and assist in national economic recovery. Examples of these external pressures, which have resulted in intrusions into the autonomy of university governance and management, are provided in the context of general system theory. It is assumed that the pressure of public policies on universities will continue and that each university should have a development plan for its present and future teaching and research activities, which has the endorsement of the government higher education advisory agency so that university management can function on a secure basis. The effectiveness and efficiency of functioning at the various levels of the university system should be assessed by periodic evaluative reviews. The quality of management by academic leaders should be fostered by the establishment of national centres for the study of higher education management and policy. The relationship between government higher education advisory agencies and universities should be renegotiated so that, as interdependent and interrelated parts of the higher education system, they work in joint co-operation to ensure the most effective and appropriate development of each institution. Nevertheless, a state of equilibrium between the university system and the supra (social) system within which it exists will never fully be achieved. The fundamental role and functions of a university require that it be concerned with teaching and researching both ageless and current phenomena. Hence, a perfect equilibrium state cannot exist if external social pressures are for the main weight of university activities to be shifted to providing service for the current needs of society. 相似文献
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Changing a discipline in universities and a subject in schools: British geography in the 1950s–1970s
Ron Johnston 《History of education》2013,42(5):682-699
Geography emerged as an academic discipline in British universities in response to demands for trained teachers of the subject in the country’s burgeoning secondary schools and their curricula formed a seamless transition from one to the other. In the 1960s a major shift in the nature of the academic discipline – often termed the ‘quantitative and theoretical revolutions’ – created a breach between the two, but there were demands from within the university sector for changes to the school subject so that a new seamless transition could be instated. This essay charts the nature of those changes and how they were brought about by the key actors, both individual and institutional. Having created that apparent unity, subsequent changes saw the two educational sectors drift apart, although recent developments have sought to reinstate stronger links. 相似文献
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Ron Reuter 《The American journal of distance education》2013,27(3):151-162
Abstract This study compares learning success of online and on-campus students in a general education soil science course with lab and field components. Two terms of students completed standardized pre- and postassessments designed to test knowledge and skills from the lecture and lab content of the course. There was no difference in overall grade or lab assignment grades between course formats. Online students outperformed on-campus students on the preassessment in the first term and on the post-assessment in the second term; the two populations scored the similarly for the other assessments. Online students showed a 42% grade improvement from pre- to post-assessment; on-campus students had a 21% improvement. Online students also showed better learning success in lab-related knowledge and skills based on individual assessment questions. The students in both populations successfully met the learning objectives for this lab- and field-based science course. 相似文献
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Ron W. Wilhelm Madge T. Craig Rebecca J. Glover Diane D. Allen Jane B. Huffman 《Innovative Higher Education》2000,24(4):265-278
Five junior scholars, representing two departments and four program areas in the College of Education at the University of North Texas, committed themselves to a long-term, systematic, research-based learning program in order to further their knowledge and skills as qualitative researchers. In this essay, this community of learners describes their collaborative efforts to develop more effective skills in one method of qualitative research, in-depth, oral history interviewing. Through their cross-discipline, research-based, faculty development model, the authors offer helpful direction to other higher education faculty who seek to improve their ability to conduct and also to guide students in qualitative investigations. 相似文献
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