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81.
When "where" is more important than "when": birthplace and birthdate effects on the achievement of sporting expertise 总被引:3,自引:2,他引:1
In this study, we assessed whether contextual factors related to where or when an athlete is born influence their likelihood of playing professional sport. The birthplace and birth month of all American players in the National Hockey League, National Basketball Association, Major League Baseball, and Professional Golfer's Association, and all Canadian players in the National Hockey League were collected from official websites. Monte Carlo simulations were used to verify if the birthplace of these professional athletes deviated in any systematic way from the official census population distribution, and chi-square analyses were conducted to determine whether the players' birth months were evenly distributed throughout the year. Results showed a birthplace bias towards smaller cities, with professional athletes being over-represented in cities of less than 500,000 and under-represented in cities of 500,000 and over. A birth month/relative age effect (in the form of a distinct bias towards elite athletes being relatively older than their peers) was found for hockey and baseball but not for basketball and golf. Comparative analyses suggested that contextual factors associated with place of birth contribute more influentially to the achievement of an elite level of sport performance than does relative age and that these factors are essentially independent in their influences on expertise development. 相似文献
82.
We maintain that an understanding of the working contexts of staff is a critical consideration when designing for effective professional development. The process of embedding theory into good practice does not simply depend on the design of a good seminar, because it may also be affected by who else attends, or perhaps by who the participants talk to subsequently. This article presents a case study of the development of an online module at the Open University in the UK that was designed to help staff in understanding how to use online tools for supporting students. The article describes the institutional context in order to demonstrate how we have brought innovations in learning and teaching practice to the attention of our practitioners, using social learning techniques, within their normal working environment. We go on to describe module design and participant perceptions of its effectiveness. 相似文献
83.
Re-ranking the search results in order to promote novel ones has traditionally been regarded as an intuitive diversification strategy. In this paper, we challenge this common intuition and thoroughly investigate the actual role of novelty for search result diversification, based upon the framework provided by the diversity task of the TREC 2009 and 2010 Web tracks. Our results show that existing diversification approaches based solely on novelty cannot consistently improve over a standard, non-diversified baseline ranking. Moreover, when deployed as an additional component by the current state-of-the-art diversification approaches, our results show that novelty does not bring significant improvements, while adding considerable efficiency overheads. Finally, through a comprehensive analysis with simulated rankings of various quality, we demonstrate that, although inherently limited by the performance of the initial ranking, novelty plays a role at breaking the tie between similarly diverse results. 相似文献
84.
ABSTRACT This paper contributes to knowledge of teacher socialization, and in particular, current understandings of sources of teacher dissatisfaction. It focuses on the experiences of beginning physical education teachers working in non‐metropolitan schools. While lining and working in small conservative communities, these teachers were subject to a variety of pressures relating to their isolation, beginning professional status, and personal lifestyle choices. These pressures to conform are explored using Foucault's [FOUCAULT, M. (1977) Discipline and Punish (New York, Pantheon] account of the processes of regulation and surveillance, and by drawing on data which illustrates how teachers’ work practices, appearance and lifestyles were being watched by the school and outside community. 相似文献
85.
Sasho James Mackenzie Erik Matthew Henrikson Heidi Lynette Macdonald Troy William Hillier 《Journal of sports sciences》2013,31(24):2849-2855
ABSTRACTThe purpose of this study was to investigate the influence of shaft torque (torsional rigidity) on clubhead kinematics and the resulting flight of the ball. Two driver shafts with disparate levels of torque, but otherwise very similar properties, were tested by 40 right-handed golfers representing a range of abilities. Shaft deflection data as well as grip and clubhead kinematics were collected from 14 swings, with each shaft, for each golfer using an optical motion capture system. Ball flight and additional clubhead kinematics were collected using a Doppler radar launch monitor. At impact, the high torque shaft (HT) was associated with increased delivered loft (P = .028) and a more open face (P < .001) relative to the low torque shaft (LT). This resulted in the HT shaft being associated with a ball finishing position that was further right (P = .002). At the individual level, the change in face angle due solely to shaft deformation was significantly higher for the HT shaft for 25/40 participants. Although shaft twist was not directly measured, it was logically deduced using the collected data that these outcomes were the result of the HT being twisted more open relative to the LT shaft at impact. 相似文献
86.
Primrose Letcher Christopher J. Greenwood Helena McAnally Jay Belsky Jacqui A. Macdonald Elizabeth A. Spry Kimberly C. Thomson Meredith O'Connor Judith Sligo George Youssef Jennifer E. McIntosh Ella Iosua Delyse Hutchinson Joyce Cleary Ann V. Sanson George C. Patton Robert J. Hancox Craig A. Olsson 《Child development》2023,94(1):60-73
This study examined whether positive development (PD) in adolescence and young adulthood predicts offspring behavior in two Australasian intergenerational cohorts. The Australian Temperament Project Generation 3 Study assessed PD at age 19–28 (years 2002–2010) and behavior in 1165 infants (12–18 months; 608 girls) of 694 Australian-born parents (age 29–35; 2012–2019; 399 mothers). The Dunedin Multidisciplinary Health and Development Parenting Study assessed PD at age 15–18 (years 1987–1991) and behavior in 695 preschoolers (3–5 years; 349 girls) and their New Zealand born parents (age 21–46; 1994–2018; 363 mothers; 89% European ethnicity). In both cohorts, PD before parenthood predicted more positive offspring behavior (βrange = .11–.16) and fewer behavior problems (βrange = −.09 to −.11). Promoting strengths may secure a healthy start to life. 相似文献
87.
Doune Macdonald 《Physical Education & Sport Pedagogy》2014,19(5):494-499
With claims that neo-liberalism is the ‘specific defining political/economic paradigm of the age in which we live?…?’ [Apple, Michael. 2006. Educating the ‘Right’ Way: Markets, Standards, God, and Inequality. New York: Taylor & Francis, 14.], an invited symposium at the 2012 International Convention on Science, Education and Medicine in Sport (ICSEMIS), under the auspices of the Association Internationale des Ecoles Superieures d'Education Physique (AIESEP), sought to consider if, globally, physical education has been touched by neo-liberalism. Entitled School Physical Education Curricula for Future Generations: Global Patterns? Global Lessons? the symposium featured six speakers from Africa, Australia, Korea, New Zealand, UK, and the USA. Each of the speakers articulated the impact of instantiations of neo-liberalism on their countries’ physical education curricula, resources, practices, status, and teacher education. The speakers’ accounts suggest ‘the indigenization of neoliberalism in different places, the spatial unevenness of its spread, and?…?its articulations and intersections with other political-cultural formations and governing projects?…?.’. [Kingfisher, Catherine, and Jeff Maskovsky. 2008. “Introduction the Limits of Neoliberalism.” Critique of Anthropology 28 (2): 115–126.] 相似文献
88.
89.
This paper examines Chinese migrant young people's lifestyles and physical activity experiences in relation to the values and cultural investments of their families in Australia. The data in this paper were taken from a larger-scale study underpinned by a critical and interpretive ethnographic method conducted in two school sites. The young people's lives were significantly shaped by dominant Chinese cultural norms and traditional notions of gender. Bourdieuian concepts are drawn upon to explain the (re)production of the Chinese young people's habitus cultivated at home. Based on the young people's pursuit of cultural capital as a consequence of familial values, discussion also focuses on the agency of these young people in relation to their lifestyle choices. Dominant discourses in the ‘talk’ of these young people included their notions of excelling, hyper-investment in academic success and, especially for the girls, skin colour and safety. Traditional Chinese family power relations limited the choices these young people had regarding physical activity which was complicated by the cultural and social fluidity of their lived experiences. The inter-generational flow of habitus and capital of these Chinese migrant young people's families tended to privilege a particular set of discourses based on gender, race, social class and hierarchical practices that resonated with traditional Confucian philosophy. 相似文献
90.
注意差距!体育教育工作者在体育文化传播中所面临的挑战 总被引:1,自引:0,他引:1
Doune Macdonald 《体育科学》2008,28(9)
Across the world every second we are being asked to“Mind the gap !”as we move between rail carriages and plat-forms .This presentation will consider the question,“Do wesufficiently,mind the gap ?”More specifically,“Does physicaleducation and its teac 相似文献