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91.
Daniel F. B. Haeufle Jay Worobets Ian Wright Jenny Haeufle Darren Stefanyshyn 《Sports Engineering》2012,15(4):215-220
A common belief in the golf community is that a lighter shaft allows the golfer to swing the club faster. From a mechanical point of view, reducing the mass of the shaft would result in a faster swing. However, a golfer is not a purely mechanical system, and so it is simplistic to assume that identical loads will be applied when swinging different clubs. Therefore, the purpose of this study was to test the hypothesis that golfers behave similar to a mechanical model when swinging clubs of varying mass. A torque driven model estimated the effects caused by the addition of 22?g to the shaft. Twelve golfers hit balls with a standard driver as well as a driver fitted with the same 22?g increase in mass. Club kinematics were collected with a high-speed motion capture system. The model predicted a 1.7?% lower club head speed for the club with additional mass. One subject showed a similar reduction (1.4?%), but one subject showed an increase in club head speed by 3.0?%. Ten subjects did not show any significant differences. These results suggest that golfers do not respond to changes in club mass in a mechanically predictable way. 相似文献
92.
Governing education through data: Scotland,England and the European education policy space 总被引:1,自引:0,他引:1
This paper draws on interview data from national policy makers in England, Scotland and the European Commission to illustrate differences in the referencing of ‘Europe’ in education policy‐making in England and Scotland in order to highlight the emergent complexity of post‐devolution policy‐making in education through a focus on relations and interactions with Europe, as expressed in the negotiation and development of performance data systems. We suggest that policy‐makers in England reference global influences, rather than Europe, while policy‐makers in Scotland reference Europe in order to project a new positioning of Scotland in closer alignment with Europe. Europeanisation in education thus produces differing policy responses from closely aligned, indeed, in the case of England and Scotland, contiguous policy spaces. Thus the paper seeks to contribute to the literature on ‘travelling’ education policy and its ‘local’ mediation and to connect the development of devolution and the changing policy space of education in Europe. 相似文献
93.
As definitions of literacy become reconceptualised, so too do constructions of the primary teacher's identity. This study analyses the discourses that emerged from interviews with a group of Australian primary teachers who talked about their reactions to teaching media. Teachers who embraced this area of learning had a more futures-oriented view of their identity. However, there were still teachers who retained a more traditionalist perception of their role, including some who viewed teaching media as an unnecessary burden. These contrasting perspectives suggest that a crisis in identity will remain unless the boundaries that separate conventional literacies from new literacies can be challenged. 相似文献
94.
Jenny Coleman 《Media History》2016,22(2):143-158
As a contribution to the historiography of female criminality, this article charts the discursive contours of media representations of female habitual criminals. The discussion is based on analysis of the ways in which the late Victorian and Edwardian newspaper press in New Zealand reported cases of female criminals through the gendered and classed trope of ‘the adventuress’. The specific focus is on how concepts of class were implicated in the ways in which competing representations of female fraudsters, swindlers and thieves were portrayed in syndicated international articles and local news media. It is argued that representations of adventuresses sensationalised as headline-making anomalies in the news media need to be understood within the context of changing constructions of the thief. Newspaper reporting of their ‘exploits’ operated as implicit cautionary moral tales that reinforced normative constructions of feminine respectability. 相似文献
95.
Sharon Connell John Fien Jenny Lee Helen Sykes David Yencken 《Environmental Education Research》1999,5(1):95-113
This article presents a range of findbigs from a qualitative study of the environmental attitudes of young people across their final 2 years of secondary school in the two Australian cities of Melbourne and Brisbane. Focus groups comprising the same 16‐ to 17‐year‐old students in 12 schools were interviewed twice, 12 months apart. Several minor differences were found in the attitudes of students between the two cities, but these pale alongside the common, indeed, overwhelming feelings of environmental concern mixed with frustration, cynicism and action paralysis that were reported. The ambivalence towards the environment that results, together with the individualistic frameworks for explaining environmental issues that were displayed, point to areas for renewed curriculum attention in secondary schools and directions for future research. 相似文献
96.
Dart Barry Burnett Paul Boulton-Lewis Gillian Campbell Jenny Smith David McCrindle Andrea 《Learning Environments Research》1999,2(2):137-156
Four hundred and eighty-four students from two metropolitan secondary schools completed the Learning Process Questionnaire,
the Individualised Classroom Environment Questionnaire and the Learner Self Concept scale. Relationships between perceptions
of the classroom learning environment, approaches to learning and self concept as a learner were investigated. Gender and
level of schooling (junior high versus senior high) differences were examined. Results showed Deep Approaches to learning
were significantly related to classroom learning environments which were perceived to be highly personalised and to be encouraging
active participation in the learning process and the use of investigative skills in learning activities. High learner self
concept was positively associated with Deep Approaches to learning and with classrooms perceived as high in Personalisation.
It was negatively associated with Surface Approaches to learning. Differences in perceptions of learning environments and
approaches to learning in relation to gender and level of schooling were small. The implications of these findings are discussed
and strategies for facilitating Deep Approaches to learning are referred to.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
97.
The purpose of this study was to extend understanding of how athletes and coaches in a women’s cycling talent development and selection programme negotiate and normalise athlete abuse in the media. A thematic analysis of six online cycling magazine articles and their representations of the Australian women’s elite cycling development camp was analysed to explore athletic abuse and the (re)production of coaching practices using Bourdieusian theory. The findings revealed a link between the expression of coaching practice and the maltreatment of athletes. Analysis of these articles also revealed that athletes were complicit in the normalisation of coaching practices through the misrecognition of social power embedded in the coaching intervention. The representations by athletes within the articles contributed narratives related to the reproduction and proliferation of abusive coaching practices. This study extends understanding of how taken for granted and power laden aspects of coaching practices can be presented in the media and highlights the implications for coaches, athletes and the general public that consume online cycling media content. 相似文献
98.
The aim of this study was to examine the effect of movement and stretching imagery on increases in flexibility. Thirty volunteers took part in a 4 week flexibility training programme. They were randomly assigned to one of three groups: (1) movement imagery, where participants imagined moving the limb they were stretching; (2) stretching imagery, where participants imagined the physiological processes involved in stretching the muscle; and (3) control, where participants did not engage in mental imagery. Active and passive range of motion around the hip was assessed before and after the programme. Participants provided specific ratings of vividness and comfort throughout the programme. Results showed significant increases in flexibility over time, but no differences between the three groups. A significant relationship was found, however, between improved flexibility and vividness ratings in the movement imagery group. Furthermore, both imagery groups scored significantly higher than the control group on levels of comfort, with the movement imagery group also scoring significantly higher than the stretching imagery group. We conclude that the imagery had stronger psychological than physiological effects, but that there is potential for enhancing physiological effects by maximizing imagery vividness, particularly for movement imagery. 相似文献
99.
This study aimed to determine cross-sectional associations of dog ownership, dog walking, and physical activity (PA) among children and their parents. Objective measures of PA were obtained for children ages 5-6 and 10-12 years from 19 primary schools across Melbourne, Australia. Parents self-reported their PA, dog ownership, and frequency of dog walking: 53% of families owned a dog, 41% of children who owned a dog did not walk their dog at all, and 32% reported never or rarely walking their dog as a family. Dog ownership was associated with an additional 29 min/day in PA among younger girls, and 70 and 59 min/week more in PA among mothers of younger boys and older girls, respectively. Among mothers of older girls, dog owners were 1.6 times as likely to meet PA guidelines. Mothers with older boys and girls, and fathers with younger boys, who reported walking the dog regularly as a family, spent more time in PA (105, 90, and 158 more min/week, respectively). Promoting dog ownership and dog walking among children and as a family are potential strategies for increasing PA participation in some families. 相似文献
100.
This paper examines the gendered representations of scientists in the UK media. Our analysis reveals the asymmetrical ways in which men and women working in science, engineering and technology are portrayed, in particular through the emphasis on women's appearance and a focus on their exceptional status. It also highlights the way female scientists may be used to "sex up" the discipline in the context of increasing concern about the (un)popularity of science. This media analysis is contextualized by drawing on data from 86 scientists examining how women themselves experience press and television coverage and address the cultural contradictions surrounding their role. The research highlights the challenges facing women working in these fields and the dilemmas for those seeking to develop a "human" face for science and promote a positive image for women. 相似文献