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Maurice Peston 《Higher Education Quarterly》1976,30(2):177-186
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In this study, we found that the optimum take-off angle for a long jumper may be predicted by combining the equation for the range of a projectile in free flight with the measured relations between take-off speed, take-off height and take-off angle for the athlete. The prediction method was evaluated using video measurements of three experienced male long jumpers who performed maximum-effort jumps over a wide range of take-off angles. To produce low take-off angles the athletes used a long and fast run-up, whereas higher take-off angles were produced using a progressively shorter and slower run-up. For all three athletes, the take-off speed decreased and the take-off height increased as the athlete jumped with a higher take-off angle. The calculated optimum take-off angles were in good agreement with the athletes' competition take-off angles. 相似文献
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In this study a method for determining elbow extension and elbow abduction for a cricket bowling delivery was developed and assessed for Jenny Gunn who has hypermobility in both elbows and whose bowling action has been repeatedly queried by umpires. Bowling is a dynamic activity which is assessed visually in real time in a cricket match by an umpire. When the legality of a bowler's action is questioned by an umpire a quantitative analysis is undertaken using a marker based motion analysis system. This method of quantifying elbow extension should agree with a visual assessment of when the arm is "straight" and should minimise the effects of marker movement. A set of six markers on the bowling arm were used to calculate elbow angles. Differences of up to 1° for elbow extension and up to 2° for elbow abduction were found when angles calculated from the marker set for static straight arm trials were compared with measurements taken by a chartered sports physiotherapist. In addition comparison of elbow extension angles at ball release calculated from the markers during bowling trials with those measured from high speed video also showed good agreement with mean differences of 0°±2°. 相似文献
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Maurice L Phipps Aya Hayashi April Lewandowski Allison H Padgett 《Journal of Adventure Education & Outdoor Learning》2013,13(1):51-65
Abstract This article describes the use of two linked instruments, the Instructor Effectiveness Check Sheet (IEC) and Instructor Effectiveness Questionnaire (IEQ). The use of an evaluation instrument during a course can enable improvements to be made — even with experienced instructors. Detail can be taken from the IEC and IEQ to find obvious and not so obvious needed changes and attention to individuals in the group. The article gives an example where the instruments were used to teach instructors about different pedagogical constructs, describes further research using the instruments at the Nantahala Outdoor Center, USA, and describes a case study on a wilderness education group that illustrated improvement in effective teaching. 相似文献
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Maurice Wakeham 《Health information and libraries journal》2008,25(4):270-277
Background: In 2007 the University Health Sciences Librarians Group (UHSL) merged with the University Medical Schools Librarians Group (UMSLG) to form the University Health and Medical Librarians Group (UHMLG). This paper traces the course of health librarianship in the UK which led to this event, from the perspective of the UHSL. Methods: The narrative has been developed from the Executive Committee minutes, newsletters and reports of events organized by the UHSL. Summary: The UHSL evolved from the Council of Polytechnic Librarians (COPOL) Health Sciences Group and the Standing Conference of National and University Librarians (SCONUL) Health Sciences Group. It sought to represent the views of health librarians working in the university sector. It also provided, through newsletters and study days, information, networking opportunities and professional development. UHSL collaborated with other relevant organizations to further its aims. Conclusion: The structure of professional support groups within health librarianship reflects the evolving nature of the health service, higher education and the social changes driven by technological developments. 相似文献
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An experiential approach employing game design and play was tried in a graduate adult education class. This article describes a follow-up study which attempted to capture class members' perceptions on value of game design/play; group interactions in game development; effectiveness of game design/play as a learning stimulant; appropriateness of the grading criteria; likelihood to use a similar strategy in their own teaching; and, identification of helpful resources in gaming. Game design/play appears to offer an effective adult teaching strategy which produces a variety of learning outcomes.Jessica Somers earned her BBA and MBA degrees at West Georgia College. She is currently a doctoral student in instructional technology at the University of Georgia and is a self-employed computer contractor.Margaret E. Holt is associate professor of adult education at the University of Georgia and is an associate with the Charles F. Kettering Foundation. Her most recent publication is a book co-edited with Dr. George Lopos for Jossey-Bass Publishers entitled,Perspectives on Educational Certificate Programs (Winter 1991). She is also a former editor ofInnovative Higher Education. 相似文献