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731.
Alison Alcock Adam Hunter Nicholas Brown 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(2):129-140
The ability to determine a specific location on a football (soccer) pitch from television footage would provide a cost-effective method of obtaining competition-specific information on many professional and international teams. This study presents the accuracy and reliability of a new method of calculating ball location from simulated television coverage and known pitch markings. The coordinates of 99 markers of known location on a football pitch were digitized from video. An intersection point was determined from the equations of two lines that form pitch markings and the relationship from this point to other known pitch coordinates was calculated using a curve-fitting based method. Average error between known and reconstructed measures was 0.21 m for pitch width and 0.11 m for pitch length from a view simulating television coverage. Inter- and intra-rater reliability analyses showed researchers could consistently reconstruct pitch locations to within less than half a metre. The accuracy and reliability of this method will be sufficient for most practical uses in an applied sport environment, although the level of accuracy required will depend on the specific application. This method could be applied to other sports to determine specific locations on a pitch or court or to improve current competition analysis systems. 相似文献
732.
This paper analyses pedagogic practices in four fields in art and design higher education. Its purpose is to identify the characteristics that might be called signature pedagogies in these subjects and to identify their role in student centred learning. In a time of growing economic pressure on higher education and in the face of tendencies for normative practices brought about through mechanisms such as quality assurance procedures the authors seek to articulate and recognise the issues relating to spaces and pedagogies from this discipline that might be made to wider debates about learning in the sector. 相似文献
733.
Several research articles have been published demonstrating the effectiveness of behavioral interventions in improving suggestive selling behavior of sales staff (e.g., Johnson & Masotti, 1990; Martinko, White, & Hassell, 1989; Mirman, 1982; Ralis & O'Brien, 1986). Procedures employed in these studies made use of two classes of personnel to implement the intervention: (1) personnel internal to the organization or (2) external consultants. The current study examined the efficacy of a consumer‐driven approach to improve suggestive selling behavior of three employees of a fast food franchise. Customers delivered either a verbal prompt or praise to an employee after they had placed their order. Delivery of a prompt or praise depended on whether or not the employee made a suggestion for an additional food purchase. This consumer‐driven intervention increased suggestive selling behaviors of all three employees, and was associated with higher suggestive sales in each case. 相似文献