Force transducer system for measurement of ice hockey skating force     

Tyler J. Stidwill  Rene Albert Turcotte  Phil Dixon  David J. Pearsall 《Sports Engineering》2009,12(2):63-68

The purpose of this study was to develop a portable force measurement system for ice hockey skating. The system consisted of three strain gauge pairs affixed to an ice hockey skate’s blade holder with wire leads connected to a microprocessor controlled data acquisition device carried in a backpack worn by the skater. The configuration of the strain gauges simultaneously determined the vertical and medial–lateral force components experienced by the blade holder with a resolution accuracy of 1.9 N and a coefficient of variation of 9.2%. On-ice testing of this system with subjects performing forward start, acceleration, and constant velocity skating permitted unencumbered, natural movement and demonstrated clear, unambiguous signal responses, high trial-to-trial repeatability, and easy data retrieval. The practicality and accuracy of this testing approach have many applications, such as a quantitative tool for skating force assessment to aid athletes and coaches, as well as providing the means to examine other skill-specific dynamics.  相似文献   

Invisible children? The need for support groups for siblings of disabled children     

Angie Naylor  Phil Prescott 《British Journal of Special Education》2004,31(4):199-206

Previous research and first-hand experience suggest that a child with a disability can have a profound effect on family life. Although the need for sibling support has been acknowledged in legislation, the implications for non-disabled siblings remain unclear. In this article, Angie Naylor, lecturer in psychology, and Phil Prescott, senior lecturer in childhood and youth studies, both based at Edge Hill, review a number of key themes emerging from the literature on sibling support. They go on to report the findings from an in-depth study of one sibling support group. The work was carried out in partnership with Barnardo's in the north-west of England and involved setting up a sibling support group, in response to an analysis of local need, and evaluating its impact. This research indicates a clear need for further service provision to meet the needs of the siblings of disabled children who attended the scheme. Angie Naylor and Phil Prescott argue for a reinvigorated debate about the needs of such children and champion the importance of listening to children and valuing what they have to say. The results of this small-scale evaluation project have clear implications for future research and, potentially, for policy and practice.  相似文献   

Reading pedagogy, “Evidence” and education policy: learning from history?     

Phil Cormack 《The Australian Educational Researcher》2011,38(2):133-148

This paper examines the report of the Inquiry into the Teaching of Literacy (Department of Education, Science & Training (DEST) 2005) and explores the claims it makes about reading pedagogy and the centrality of particular “methods” or “approaches” to teaching backed by “scientific” evidence. Discourse analysis of the report shows that its logics allow only certain kinds of evidence to count in policy, and that it reduces difficult social and political issues to questions of technique. This allows the report to recommend an approach whereby qualitative insights and practitioners’ experience can be bypassed through valorising methods developed and verified by scientific researchers. The report’s claims are considered genealogically in the light of historical cases from the early nineteenth century, where educational reformers struggled with the issue of how to educate the children of the poor. In one, the monitorial system promoted by Lancaster in England, there was a focus on reading which made teachers or monitors artefacts of a standardised method. By way of contrast, in Scotland, a classroom approach developed by Stow (1854) made the teacher central to the process, as someone who sensitively interpreted and extended students’ experiences with texts. Stow’s approach would form the model for the modern classroom in compulsory state schooling, while the monitorial system would eventually be abandoned as ineffective. The historical cases demonstrate the dangers of approaches to policy that fail to account for the complex interplay between teacher, student and text in the reading lesson.  相似文献   

Student teachers in school practice: an analysis of learning opportunities     

Phil Wood 《Education 3-13》2016,44(4):496-497

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The Structure of Ill-Structured (and Well-Structured) Problems Revisited     

Reed  Stephen K. 《Educational Psychology Review》2016,28(4):691-716

Educational Psychology Review - In his 1973 article The Structure of ill structured problems, Herbert Simon proposed that solving ill-structured problems could be modeled within the same...  相似文献   

Determining optimal cadence for an individual road cyclist from field data     

Robert Reed  Simon Adrian Jobson  Louis Passfield 《European Journal of Sport Science》2016,16(8):903-911

The cadence that maximises power output developed at the crank by an individual cyclist is conventionally determined using a laboratory test. The purpose of this study was two-fold: (i) to show that such a cadence, which we call the optimal cadence, can be determined using power output, heart-rate, and cadence measured in the field and (ii) to describe methodology to do so. For an individual cyclist's sessions, power output is related to cadence and the elicited heart-rate using a non-linear regression model. Optimal cadences are found for two riders (83 and 70 revolutions per minute, respectively); these cadences are similar to the riders’ preferred cadences (82–92?rpm and 65–75?rpm). Power output reduces by approximately 6% for cadences 20?rpm above or below optimum. Our methodology can be used by a rider to determine an optimal cadence without laboratory testing intervention: the rider will need to collect power output, heart-rate, and cadence measurements from training and racing sessions over an extended period (>6 months); ride at a range of cadences within those sessions; and calculate his/her optimal cadence using the methodology described or a software tool that implements it.  相似文献   

Somewhere Between What Is and What If: Fictionalisation and Ethnographic Inquiry   总被引：1，自引：0，他引：1  

Malcolm Reed 《Changing English: An International Journal of English Teaching》2011,18(1):31-43

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An Examination of Text Complexity as Characterized by Readability and Cohesion     

Deborah K. Reed  Sarah Kershaw-Herrera 《Journal of Experimental Education》2016,84(1):75-97

To better understand dimensions of text complexity and their effect on the comprehension of adolescents, 103 high school seniors were randomly assigned to 4 groups. Each group read versions of the same 2 informational passages and answered comprehension test items targeting factual recall and inferences of causal content. Group A passages had a challenging readability level and high cohesion; Group B passages had an easier readability and low cohesion; Group C passages had a challenging readability level and low cohesion; and Group D passages had an easier readability and high cohesion. Students in Group D significantly outperformed students in Group C (g = 0.78). Although the effect sizes of comparisons among all groups ranged from g = 0.13 to 0.73, no other comparisons were statistically significant. Results indicate that adolescents’ reading comprehension is dually influenced by a text's readability and cohesion. Implications for matching readers to instructional text are discussed.  相似文献   

Interview: Speaking personally — with colonel William A. Wojciechowski     

Phil Savarise 《The American journal of distance education》2013,27(3):67-71

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10 School decentralization and empowerment     

Rodney J. Reed 《教育政策杂志》2013,28(5):149-165

School results for children of poverty ‐ those forced by that poverty to live in inner‐city neighbourhoods ‐generally indicate educational failure at a much higher rate than is seen for students nurtured by wealthier school districts. This failure in school severely limits chances of social and economic upward mobility, which translates into a waste of human capital for the nation's business‐industrial‐political complex, and dashed hopes, dreams and self‐esteem for the individual. Parents and concerned citizens from across socio‐economic strata, long aware of the general inadequacy of schools in poor communities, have demanded improvement, often seeking it through legal and political means. Important strategies among the various federal, state and local school reform efforts to make schooling a meaningful process for all students, and particularly the minority poor, are decentralization and citizen/parent empowerment, the focus of this chapter. The movement to decentralize school governance ‐ an effort to place control into the hands of the people being served ‐ has gained momentum and exists in some form in most large‐city school districts today. An extension of administrative decentralization, citizen/parent empowerment is seen as one of several factors, including teacher and administrator preparation, curriculum renewal, school financing, and school restructuring, vital in the improvement of schools. A look at the meaning and scope of decentralization, operationalized through citizen/parent empowerment, and its probable effectiveness in improving school outcomes indicates that, alone, it is insufficient to ensure positive academic and social performance in school.  相似文献