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61.
62.
Jairo Vázquez-Guerrero Ben Jones Bruno Fernández-Valdés Gerard Moras Xavi Reche Jaime Sampaio 《Journal of sports sciences》2013,31(22):2530-2537
ABSTRACTThe aims of this study were (a) to compare players’ physical demands between different playing positions in elite U18 basketball games and (b) to identify different clusters of performance. Data were collected from 94 male subjects (age: 17.4 ± 0.7 years), competing in a Euroleague Basketball Tournament. Guards covered a greater relative distance than centres and forwards (small to moderate effect). Forwards and guards had more peak accelerations, high accelerations and high decelerations than centres (moderate to large effects). A cluster analysis allowed to classify all cases into three different groups (Lower, Medium and Higher activity demands), containing 37.4%, 52.8% and 9.8% of the cases, respectively. The high accelerations, high decelerations, peak accelerations and total distance covered were the variables that most contributed to classify the players into the new groups. The percentage of cases distributed in the clusters according to playing position, game type (worst vs worst, mixed opposition, best vs best) and team were different. Centres have lower physical demands specially related with the number of accelerations and decelerations at high intensity and the peak acceleration when compared with guards. Each team has a different activity profile, that does not seem to influence the tournament outcome. 相似文献
63.
Gerard Goggin 《The Information Society》2013,29(3):171-181
In this paper, I approach the question of mobiles in Asian countries by considering the case of Australia. I do so by way of a preliminary inquiry that seeks to explore the intersection between the emergence of mobiles in Australia with transformations in that country's sense of its relationship with Asia. First I discuss the history of the mobile phone in Australia, noting some important uses and representations that formed part of its social shaping. Second, I explore mobiles and the paradoxes of multiculturalism, and also how digital technologies became central to political culture and identity debates in Australia in the early to-mid 1990s. Third, I look at some important moments in the social shaping of text messaging, in which questions of cultural difference were decisive. Finally, I offer concluding remarks about future research on mobiles in Australia and how they are tied into Asian identities. 相似文献
64.
Danielle Lawson 《The Information Society》2013,29(4):309-310
This article seeks to address how religion fits into the larger domain of Internet studies and why studies of religion within computer-mediated communication (CMC) need to be given more attention. An argument is made for the need to take religion online more seriously, not just because it is an interesting phenomenon or a popular use of the Internet, but also because religion continues to be an important part of contemporary life for many people. A summary of the growth and development of religion online is presented along with an overview of how religion has been approached and studied on the Internet. This review shows what CMC studies of religion might offer in approaching research questions related to authority, identity construction, and community online. It calls for recognition of the contribution, and possibilities that underrepresented areas within interdisciplinary research, like religion, might offer Internet studies as a whole. 相似文献
65.
The colleges of education for primary school teachers in The Netherlands have gone through several mergers in the space of just a few years. Many colleges of education became part of a polytechnic. The authors studied how the specific characteristics of the education of primary school teachers can show to full advantage in a large institute of higher vocational education. In the Dutch situation as well as that of the other countries of the European Community (England and the Federal Republic of Germany in particular) the phenomena ‘integration’ and ‘differentiation’ have been studied. The authors concluded that mergers of primary school teacher training colleges can be a serious threat to the educational identity of teacher training as a whole. Holding to as well as giving up the educational identity does not guarantee that the specific characteristics will be kept. 相似文献
66.
Why are some students able to learn to use the trial and error method to balance chemical equations while others are not? To test the hypothesis that formal reasoning is required to balance even simple one-step equations, while formal reasoning and a sufficiently large mental capacity are required to balance more complex many-step equations, a sample of science students was tested to determine level of intellectual development, mental capacity, and degree of field dependence/field independence. Students were then given classroom instruction in using trial and error to balance equations. As predicted, a posttest revealed significant correlations between developmental level and equation balancing ability for both simple and complex equations. Also, as predicted, mental capacity correlated significantly with complex equations but not with simple equations. Field dependence/field independence played no significant role in performance. Educational implications are drawn. 相似文献
67.
The short form of Entwistle's (1981) Approaches to Studying Inventory (ASI‐S) was administered to 503 mature‐aged students, most of whom identified themselves as disadvantaged and were returning to study after many years absence. Analysis of the 503 responses showed that internal consistency estimates for the seven subscales of the ASI‐S were generally low, but that confirmatory factor analysis could recover two major dimensions corresponding to deep and surface orientations to learning. To examine the predictive validity of the ASI‐S with this population, results for a mathematics unit which they were studying were regressed on factor scores. Results of the structural analysis indicated that the deep orientation was unrelated to academic progression in mathematics but that high scores on the surface orientation were associated with poor academic performance ( = 0.092). These findings indicate that broad learning orientations are fundamental and can be identified in a group of students returning to study after a long absence. The study also emphasises the importance of examining the particular study context when evaluating the effect of learning orientations. The effect of deep and surface orientations may be positive or negative depending on the subject area and the learning context. 相似文献
68.
69.
Kelley Regan Anna Evmenova Pam Baker Marci Kinas Jerome Vicky Spencer Holly Lawson Terry Werner 《The Internet and Higher Education》2012,15(3):204-212
In an effort to expand existing research on the barriers of instructors experience in online learning environments (OLEs), a qualitative study was conducted at a large mid-Atlantic university. Six instructors teaching in different OLE formats (e.g., asynchronous, hybrid, and synchronous via videoconferencing) participated in two focus groups in order to explore their emotional experiences and ways to regulate the emotions when teaching in OLEs. The overarching themes included emotions of feeling (a) restricted, (b) stressed, (c) devalued, (d) validated, and (e) rejuvenated. The article also provides practical strategies on how participating instructors attempted to manage the challenging emotions. A consensus among all participants is that continuous dialog in a community of practice about strategies to enhance OLEs is imperative. 相似文献
70.
David Boud Romy Lawson Darrall G. Thompson 《Assessment & Evaluation in Higher Education》2013,38(8):941-956
One of the implicit aims of higher education is to enable students to become better judges of their own work. This paper examines whether students who voluntarily engage in self-assessment improve in their capacity to make those judgements. The study utilises data from a web-based marking system that provides students with the opportunity to assess themselves on each criterion for each assessment task throughout a programme of study. Student marks were compared with those from tutors to plot changes over time. The findings suggest that overall students’ judgements do converge with those of tutors, but that there is considerable variation across achievement levels, with weaker students showing little improvement. Whilst the study is limited by the exigencies of voluntary participation and thus consequential gaps in the data set, it shows how judgement over time can be demonstrated and points to the potential for more systematic interventions to improve students’ judgements. It also illustrates the use of the web-based marking and feedback software (ReView) that has considerable utility in aiding self-assessment research. 相似文献