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91.
Chris Pocock Neil E. Bezodis Keith Davids Jamie S. North 《European Journal of Sport Science》2018,18(10):1309-1316
Place kicks in Rugby Union present valuable opportunities to score points outside the spatiotemporal dynamics of open play but are executed under varying performance constraints. We analysed effects of specific task constraints and relevant contextual factors on place kick performance in the 2015 Rugby Union World Cup. Data were collected from television broadcasts for each place kick. In addition to kick outcomes, contextual factors, including time of the kick in the match, score margin at the time of the kick, and outcome of the kicker’s previous kick, were recorded. Effects of spatial task constraints were analysed for each kick, using distance (m) and angle (°) of the kick to the goalposts. A binomial logistic regression model revealed that distance from, and angle to, the goalposts were significant predictors of place kick outcome. Furthermore, the success percentage of kickers who missed their previous kick was 7% lower than those who scored their previous kick. Place kick success percentage in the 10 minutes before half-time was 8% lower than the mean tournament success percentage, which was 75% (95% CI 71–78%). The highest kick success percentage was recorded when scores were level (83%; 95% CI 72–91%). Our data highlighted how subtle changes in task constraints and contextual factors can influence performance outcomes in elite performers in international competition. Fluctuations in place kick success suggested that individual constraints, such as thoughts, emotions and fatigue, induced during competition, could interact with perceptions to influence emergent performance behaviours. 相似文献
92.
Annika Bergviken Rensfeldt Thomas Hillman Neil Selwyn 《British Educational Research Journal》2018,44(2):230-250
Social media are now an important aspect of the professional lives of school teachers. This paper explores the growing use of mass ‘teacher groups’ and ‘teacher communities’ on social media platforms such as Facebook. While these online communities are often welcomed as a means of professional learning and support, the paper considers the extent to which Facebook groups also expose teachers to some of the less beneficial aspects of social media, such as various forms of ‘digital labour’, commercialisation of exchanges and predominance of individualised reputation‐driven behaviours. Drawing on a detailed examination of a Swedish teacher Facebook group of over 13,000 members, the paper first addresses aspects of the online community that could be seen as professionally beneficial and/or valuable—particularly in terms of information exchange and social support. Yet while perceived by participants as a relatively beneficial and uncontroversial aspect of their working lives, the research also points to characteristics of the Facebook group that constituted disadvantaging, exploitative and/or disempowering forms of technological engagement. In these terms, the paper highlights tensions between what appears to ‘work’ for individual teachers in the short term and likely longer‐term implications that these practices might have for diminished professionalism and expertise of teachers. 相似文献
93.
Challenging discourses of aspiration: The role of expectations and attainment in access to higher education
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Raising the proportion of young people from disadvantaged backgrounds progressing to higher education has been a key policy objective for successive governments in the UK since the late 1990s. Often this has been conceptualised as a problem with their ‘aspirations’, with the solution being seen as the provision of ‘aspiration‐raising’ activities to promote higher education to those thought to have the potential to progress. Recent large‐scale studies cast strong doubt on this hypothesis by demonstrating that aspirations are not generally low, that different social groups have similar levels of aspiration and that school attainment accounts for nearly all the differences in participation rates between social groups. This article draws on data from a national project exploring efforts to widen participation across two generations of practitioner‐managers in England, focusing on their conceptualisations of the field and their constructions of ‘successful’ activities. It uses the lens of ‘possible selves’ (Markus & Nurius, 1986 ) to argue that too much policy emphasis has been placed on the aspirations of young people, rather than either their academic attainment or their expectations, which are shaped by the normative expectations of the adults surrounding them. In addition, the more expansive concepts of widening participation that were present a decade ago have become less common, with a shift towards activities with a clear role in institutional recruitment rather than social transformation. The article concludes with alternative suggestions for policy and practice. 相似文献
94.
As university involvement in technology transfer and entrepreneurship has increased, concerns over the patenting and licensing of scientific discoveries have grown. This paper examines the effect that the licensing of academic patents has on journal citations to academic publications covering the same scientific research. We analyze data on invention disclosures, patents, and licenses from the University of California, a leading U.S. academic patenter and licensor, between 1997 and 2007. We also develop a novel “inventor-based” maximum-likelihood matching technique to automate and generalize Murray's (2002) “patent-paper pairs” methodology. We use this methodology to identify the scientific publications associated with University of California patents and licenses.Based on a “difference-in-differences” analysis, we find that within our sample of patented academic discoveries, citations to licensed patent-linked publications are higher in the three years after the license, although this difference is not statistically significant. We then disaggregate our sample into (a) patented discoveries that are likely to be used as “research tools” by other researchers (based on the presence of material transfer agreements (MTAs) that cover them) and (b) patented discoveries not covered by MTAs. Citations to publications linked to licensed patents in the latter subset (not covered by MTAs) are higher for publications linked to licensed patents, and this difference is statistically significant. In contrast, licensing of patented discoveries that are also research tools is associated with a reduction in citations to papers linked to these research advances, raising the possibility that licensing may restrict the flow of inputs to “follow-on” scientific research. 相似文献
95.
Katie Quy Jennifer Gibb Louise Neil Charlie Owen Marjorie Smith 《Emotional and Behavioural Difficulties》2018,23(3):230-244
Coping style plays an important role in children’s wellbeing. This paper describes the patterns of associations between children’s self-reported coping styles and symptoms of anxiety in order to determine whether particular dimensions are associated with better adjustment. Participants were 2566 children (1268 girls, 1298 boys) aged 7–11 years attending 15 schools in the South East of England. Results showed that aspects of coping were differentially associated with children’s self-reported anxiety. Patterns of association also varied by age and gender. Dimensions of coping were shown to form distinct adaptive and maladaptive coping styles which were also differentially associated with anxiety. Analysis of these styles indicated that it is the absence of maladaptive coping strategies, rather than the presence of adaptive strategies, that is significant in emotional wellbeing. These findings suggest that interventions designed to reduce or extinguish maladaptive coping styles may be of particular benefit in facilitating emotional wellbeing. 相似文献
96.
随着21世纪的发展,对公民教育的需求也在增长。2002年,公民资格作为法定课程引入中学教育,这引起了教育研究者扩展年轻人公民教育途径的兴趣。本文就公民教育的相关文献进行了综述,以便考察技术在公民资格课程中的地位,以及技术在正规、非正规情境下,在公民资格学与教中所扮演的角色。 相似文献
97.
Tierney Kinnison Neil David Forrest Stephen Philip Frean Sarah Baillie 《Anatomical sciences education》2009,2(6):280-285
Traditional methods of teaching anatomy to undergraduate medical and veterinary students are being challenged and need to adapt to modern concerns and requirements. There is a move away from the use of cadavers to new technologies as a way of complementing the traditional approaches and addressing resource and ethical problems. Haptic (touch) technology, which allows the student to feel a 3D computer‐generated virtual environment, provides a novel way to address some of these challenges. To evaluate the practicalities and usefulness of a haptic simulator, first year veterinary students at the Royal Veterinary College, University of London, were taught basic bovine abdominal anatomy using a rectal palpation simulator: “The Haptic Cow.” Over two days, 186 students were taught in small groups and 184 provided feedback via a questionnaire. The results were positive; the majority of students considered that the simulator had been useful for appreciating both the feel and location of key internal anatomical structures, had helped with their understanding of bovine abdominal anatomy and 3D visualization, and the tutorial had been enjoyable. The students were mostly in favor of the small group tutorial format, but some requested more time on the simulator. The findings indicate that the haptic simulator is an engaging way of teaching bovine abdominal anatomy to a large number of students in an efficient manner without using cadavers, thereby addressing some of the current challenges in anatomy teaching. Anat Sci Educ 2: 280–285, 2009. © 2009 American Association of Anatomists 相似文献
98.
Thirty-four youth competitive skiers (mean age = 13.74 years) completed measures of social evaluative concern and competitive anxiety. Consistent with past research, regression analyses showed that cognitive anxiety was related to performance-specific evaluative concerns. However, contrary to current conceptualizations of sport competition anxiety, somatic anxiety was correlated with concerns about evaluation of other non-performance aspects of ski racing. Competitive skiers were most concerned about parents' and friends' evaluations of their performance, and other competitors' and friends' evaluations of their skiing in general. These findings are discussed in relation to the theory and management of sport competition state anxiety. 相似文献
99.
It is the argument of this paper that the literature on mid-century racial discrimination in sport is incomplete in that it ignores the experiences of a small, but relatively significant, group of African-American football players who actually chose to leave their own country – and correspondingly leave the racially-charged environment of mid-twentieth-century USA – to head north to play professional football in the Canadian Football League (CFL). Beginning in 1946, a steady flow of African-Americans began to migrate to the CFL which, at the time, was a legitimate competitor league to the NFL. This paper attempts to test a perception seemingly held by some that, by moving to Canada, African-American football players were able to escape the racial injustices they often suffered in the US. This view appears to have its roots in the notion that Canada is a ‘gentler’, more tolerant society, without the divisive socio-political history that characterizes much of the race relations in the US. This paper tests these notions using a variety of empirical approaches. The results indicate that, while African-Americans were better represented in the CFL relative to the NFL, African-Americans still faced some level of entry discrimination in the CFL. In particular, African-American players in the CFL outperformed their white counterparts on numerous performance dimensions, indicating the overall talent level in the CFL could have been further improved by employing an even greater number of African-Americans. Additionally, the paper finds that those CFL teams that employed the highest percentage of African-Americans were those teams that had the most on-field success. Finally, the paper analyses prices of player trading cards from that era, and finds that cards of African-Americans were undervalued, relative to white CFL players of equal talent. 相似文献
100.
Neil Edward Bezodis Aki Ilkka Tapio Salo Grant Trewartha 《Journal of sports sciences》2013,31(8):738-746
AbstractThis study analysed the first stance phase joint kinetics of three elite sprinters to improve the understanding of technique and investigate how individual differences in technique could influence the resulting levels of performance. Force (1000 Hz) and video (200 Hz) data were collected and resultant moments, power and work at the stance leg metatarsal-phalangeal (MTP), ankle, knee and hip joints were calculated. The MTP and ankle joints both exhibited resultant plantarflexor moments throughout stance. Whilst the ankle joint generated up to four times more energy than it absorbed, the MTP joint was primarily an energy absorber. Knee extensor resultant moments and power were produced throughout the majority of stance, and the best-performing sprinter generated double and four times the amount of knee joint energy compared to the other two sprinters. The hip joint extended throughout stance. Positive hip extensor energy was generated during early stance before energy was absorbed at the hip as the resultant moment became flexor-dominant towards toe-off. The generation of energy at the ankle appears to be of greater importance than in later phases of a sprint, whilst knee joint energy generation may be vital for early acceleration and is potentially facilitated by favourable kinematics at touchdown. 相似文献