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61.
Annemarie M.H. de Witte Marco J.M. Hoozemans Monique A.M. Berger Lucas H.V. van der Woude Dirkjan Veeger 《Journal of sports sciences》2016,34(9):811-820
Improved understanding of mobility performance in wheelchair basketball is required to increase game performance. The aim of this study was to quantify the wheelchair-athlete activities of players in different field positions and of different playing standard during wheelchair basketball matches. From video analysis, absolute and relative duration and frequency of wheelchair movements and athlete control options were examined in 27 national standard and 29 international standard players during entire wheelchair basketball matches. Between-group factorial analysis of variances identified that national players drove more forward (42.6 ± 6.8 vs. 35.4 ± 3.7%; effect size Cohen’s d (ES) = 1.48) and started more often driving forward (33.9 ± 2.6 vs. 31.8 ± 2.8; ES = 0.77) during a match while the mean activity duration for a single driving forward activity was longer (4.3 ± 0.9 vs. 3.7 ± 0.6 s; ES = 0.75) than for international players. Furthermore, national players performed fewer rotational movements (21.8 ± 4.0 vs. 28.9 ± 7.8%; ES = –1.30) and started less often with the rotational movements (35.0 ± 3.6 vs. 40.5 ± 5.5; ES = –1.21) while the mean activity duration for a single rotation activity was shorter (2.1 ± 0.3 vs. 2.3 ± 0.3 s; ES = –0.67) than for international players. Differences in mobility performance among guard, forward and centre players were minimal. The results should help wheelchair basketball coaches specify wheelchair-handling training techniques and means to optimise wheelchair-athlete configurations. 相似文献
62.
To examine the development of feedforward control during manual tracking, 117 participants in 5 age groups (6 to 7, 8 to 9, 10 to 11, 12 to 14, and 15 to 17 years) tracked an accelerating dot presented on a monitor by moving an electronic pen on a digitizer. To remain successful at higher target velocities, they had to create a predictive model of the target's motion. The ability to track the target at higher velocities increased, and the application of a feedback-based step-and-hold strategy decreased with age, as shown by increases in maximum target velocity and decreases in number of stops between ages 6–7 and 8–9 and between ages 8–9 and 10–11. The ability to exploit feedforward control in a dynamic tracking task improves significantly with age. 相似文献
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The purpose of this article is to provide a model for helping campus leaders create and sustain efforts to fully incorporate Universal Instructional Design (UID) throughout their institutions. The article uses a multiple dimension model of organizational behavior as the basis for making recommendations to support this type of institutional transformation. 相似文献
65.
Stefan Berger 《Archival Science》2013,13(1):1-22
This article analyses the role of national archives for the construction of national master narratives. It starts off by discussing the different origins of national archives, the merits of talking about proto-national archives and the importance of the French revolution for establishing the modern national archive system. It goes on to highlight the difficulties of historians with obtaining access to the archives in the nineteenth century. The importance of archives in authenticating and legitimating the authority of historical work meant that archives became increasingly important for the professionalization of history writing. As history writing saw one of its prime tasks in legitimating the nation-state, archives soon occupied an important position for nation-building projects. They got involved in editing sources regarded as being of national importance, and they played a role in projects of national pedagogy. The article also charts efforts to centralize archives at the national level which resulted in failure almost everywhere. Nevertheless, whilst archives were clearly important for imperial and also subnational projects, it was the national archives that captured the imagination of nation-states in the nineteenth and twentieth centuries. Despite the importance of national archives, the articles goes on to argue that it is striking that most national master narratives in the modern period were not based on archival work. 相似文献
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Dominique Cavet 《Educational Media International》2013,50(4):211-218
Abstract As described in the different announcements made by Kodak, their PHOTO CD originally appeared as a product targeted at the general public. However, the purpose of this article is to describe the system which Kodak is going to produce and which is specifically directed towards professionals. This will be of interest to the educational system for its potential use of photographs and images. As well as its attraction for the general public and the professional, PHOTO CD is characterized by the following two important aspects: ‐ The system does not in any way affect the way pictures are actually taken; conventional films are used which are only transferred onto optical disks after being developed. — The pictures can be viewed equally well on an ordinary television, or on a compatible PC micro or Macintosh. PHOTO CD, then, seems to be a means of constructing picture banks which are available for editing. Recalling existing pictures poses no greater problem than integrating new pictures into the bank,” on the other hand, from the number of possible ways of viewing pictures, one can foresee quite complex use (multimedia or micro) as well as simple use (diaporama on a television). 相似文献
69.
Schools of social work are increasingly offering study abroad courses as a strategy for enhancing future practitioners’ knowledge and skills in serving individuals and families of diverse sociocultural backgrounds. Literature relative to such educational initiatives has focused on the characteristics, motivations, and outcomes for students and faculty; challenges and strategies to address them; different formats of course delivery; and, to a limited degree, faculty who develop and implement the courses. Using a study abroad course about understanding trauma in cultural context, the current article discusses and illustrates pedagogic and logistic benefits of the citizen of two worlds model in faculty leadership of study abroad courses. 相似文献
70.
In this article we focus on ‘cooperative engineering’, in which teachers and researchers co-design didactic sequences. In the first part of the article, we present cooperative engineering by describing some of the main principles on which it is grounded. The second part is dedicated to a case study, which enables us to illustrate some elements of the collective work in a specific cooperative design in kindergarten. The designed learning game, the ‘Treasure Game’, aimed to assist kindergarten students to build a system of graphical representations, which was implemented in a series of phases in which students were asked to memorise a series of items with increasing levels of difficulty. The game demonstrated the students’ growing competence in recalling items using strategies such as making lists and working collaboratively to collectively recall items through a ‘treasure box’. In the third part of the article, we show how this case study embodies some of the main principles put forward in the first part. 相似文献