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   

A Tribute to Steve Balch     

Peter Wood 《Academic Questions》2009,22(2):226-233

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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   

Can constrained relevance feedback and display strategies help users retrieve items on mobile devices?     

Vishwa Vinay  Ingemar J. Cox  Natasa Milic-Frayling  Ken Wood 《Information Retrieval》2006,9(4):435-453

Searching online information resources using mobile devices is affected by small screens which can display only a fraction of ranked search results. In this paper we investigate whether the search effort can be reduced by means of a simple user feedback: for a screenful of search results the user is encouraged to indicate a single most relevant document. In our approach we exploit the fact that, for small display sizes and limited user actions, we can construct a user decision tree representing all possible outcomes of the user interaction with the system. Examining the trees we can compute an upper limit on relevance feedback performance. In this study we consider three standard feedback algorithms: Rocchio, Robertson/Sparck-Jones (RSJ) and a Bayesian algorithm. We evaluate them in conjunction with two strategies for presenting search results: a document ranking that attempts to maximize information gain from the user’s choices and the top-D ranked documents. Experimental results indicate that for RSJ feedback which involves an explicit feature selection policy, the greedy top-D display is more appropriate. For the other two algorithms, the exploratory display that maximizes information gain produces better results. We conducted a user study to compare the performance of the relevance feedback methods with real users and compare the results with the findings from the tree analysis. This comparison between the simulations and real user behaviour indicates that the Bayesian algorithm, coupled with the sampled display, is the most effective. Extended version of “Evaluating Relevance Feedback Algorithms for Searching on Small Displays, ” Vishwa Vinay, Ingemar J. Cox, Natasa Milic-Frayling, Ken Wood published in the proceedings of ECIR 2005, David E. Losada, Juan M. Fernández-Luna (Eds.), Springer 2005, ISBN 3-540-25295-9  相似文献   

Along the Write Lines: a case study exploring activities to enable creative writing in a secondary English classroom.     

Audrey B. Wood 《English in Education》2016,50(2):130-147

This article arises from a four week study of a class of 14‐15 year old students. The study explored students’ perception of themselves as writers and the effects of a variety of teaching and learning strategies on their creative writing responses. The aim of the project was to enhance the students’ creative writing, whilst ascertaining whether there were particular activities or types of writing that would lead to students perceiving more satisfactory outcomes in their writing. It answers the research question: What do I observe, and what do my students say, about the experience of different classroom based creative writing tasks?  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   

A collaboratively constructed action leadership framework for sustainable learner support in contexts of adversity     

Rubina Setlhare  Lesley Wood 《Educational Action Research》2020,28(2):227-241

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Vikings in the South: Voyages to Iberia and the Mediterranean     

Jamie Wood 《Al-Masaq: Islam & the Medieval Mediterranean》2016,28(1):110-111

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Books,Articles, and Items of Academic Interest     

Peter Wood 《Academic Questions》2017,30(2):245-252

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The wellbeing toolkit for professionals working with children and young people     

Chris Wood 《Educational Psychology in Practice》2017,33(2):228-229

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