Competition, economic rationalization, increased surveillance, and attacks on diversity: Neo-liberalism and the transformation of teacher education in the U.S.

This paper discusses recent developments in U.S. teacher education that are tied to the global neo-liberal project. The focus is on how changes experienced throughout the world have played out in the U.S. Three areas are addressed in particular: the commodification of teacher education, hyperrationality and increased accountability, and attacks on multicultural education. The paper closes with a look at the future for teacher education in the U.S.     

The Culture of Empowerment: Driving and Sustaining Change at Conner Prairie

Abstract In this paper, we offer a case study of how Conner Prairie Museum recognized its institutional need for change and employed principles of staff empowerment that allowed the museum to adapt to the needs and interests of guests. The result has been a dramatic improvement in visitor satisfaction and learning. To achieve this transformation, Conner Prairie intentionally altered the organizational culture in large and small ways: by reorganizing staff assignments, restructuring staff assessment, and realigning communication between management and front‐line staff in order to empower front‐line staff. This story is not unique to Conner Prairie, but the details illuminate the vital role of empowerment in the process of cultural change.     

Unintended consequences on gender diversity of high-tech growth and labor market polarization

There has been considerable media coverage highlighting the lack of gender diversity in Silicon Valley, stressing the relatively low participation of women in the high-tech economy. Austin offers a unique case for testing whether similar gender issues characterized other high-tech regions because the city has historically benefited from the expansion of Silicon Valley’s large high-tech firms since the 1980s. The gender-biased business practices identified in Silicon Valley firms may have been transferred to their branch plants in Austin. Our analysis shows women’s losses in middle-skill occupation employment shares were concentrated in the low-tech industry and were partially offset by job share gains in high-skill occupations in the same sector between 1980 and 2015. Men’s losses in middle-skill occupation job share were also mainly concentrated in the low-tech sector but were partially offset by employment share gains in high-skill occupations only in the high-tech industry during this period. Women made large gains in relative real median wages only in high-skill occupations in the high-tech industry while their relative real median wages in other skill occupations and in the low-tech industry stagnated around zero during this period. Men’s gains in relative median wages were also concentrated only in the high-tech industry but were less than half of women’s and were negative (between ?10 and ?21 percent) in other occupations in the high-tech industry and across all occupations in the low-tech industry. As noted in previous studies, the impact of job polarization is not well understood across sectors and gender. This study finds the high-tech industry in Austin has had unintended consequences in terms of job polarization across gender, providing relatively fewer job opportunities in high-skill occupations to women than men but offering much higher gains in relative real median wages to women than men. Males also found relatively more job opportunities in high-skill occupations in the high-tech industry than women but experienced only half of women’s gains in relative median wages in this industry between 1980 and 2015.     

Athens 2004: the pollution climate and athletic performance

Athens sits in a basin approximately 450 km² in area, surrounded by mountains and open sea. Anthropogenic emissions in conjunction with the topographical and meteorological conditions can result in high air pollution within the city. The pollutants of concern for athletes competing in Athens 2004 appear to be nitrogen dioxide (NO₂), ozone and particulate (PM₁₀) pollution. Exposure to elevated ozone concentrations has been reported to give rise to symptoms that include cough, chest pain, difficulty in breathing, headache, eye irritation and a decrease in forced expiratory volume in one second. All of these effects are likely to impact upon performance, and several studies of cyclists suggest this to be the case. In contrast, the impact of ambient concentrations of NO₂ appears to be negligible on normal activities, but at high exercise intensities the impact remains unclear. The use of currently available information and models to predict the effect of ozone and other pollutants on elite athletes is problematical, since such models are based upon significantly lower ventilation rates than those achieved by some elite athletes. In addition, it is already known that the response to ozone can vary somewhat between individuals. Since the individuals who will be competing in Athens are physiologically very different to the participants in most published studies, it is difficult to predict individual responses. There is some evidence to indicate that adaptation to the adverse health and performance effects of ozone can occur, so that performance is partially recovered on re-exposure. The adaptation is not seen in all studies and appears to be dependent on several factors, including the initial sensitivity of the individual to ozone. Antioxidant supplementation has also been shown in some studies to partially ameliorate the adverse effects of ozone by counteracting the oxidative stress mechanism associated with this pollutant. Whether this transfers to performance enhancement per se remains unclear at present. Additional research is required to gain a sound understanding of the effects of a complex mixed air pollution exposure on the pulmonary function and performance of athletes exercising at high work intensities.     

2011-2012CBA总决赛双方技术应用特征因子分析——基于小样本SAS软件iml(矩阵运算)因子分析

通过文献资料法、录像观察法、小样本SAS软件因子分析法,对2011-2012CBA总决赛双方五场比赛中技术应用的指标进行了特征因子分析,结果为:篮球比赛中技术因素发挥是对立统一、相互博弈的辩证关系;通过纵、横向比较两队总决赛中每场次综合因子得分,制胜因子与遏制因子博弈的贡献统计,对双方比赛的竞技实力进行了讨论,旨在为今后的篮球竞赛与技术训练提供有价值的参考。     

Acceleration patterns in the lower and upper trunk during running

Abstract

The purpose of the present study was to relate 3D acceleration patterns of the lower and upper trunk during running to running gait cycle, assess the validity of stride duration estimated from acceleration patterns, investigate speed-dependent changes in acceleration, and examine the test–retest reliability of these parameters. Thirteen healthy young men performed two running trials each on a treadmill and on land at three speeds (slow, preferred, and fast). The 3D accelerations were measured at the L3 spinous process (lower trunk) and the ensiform process (upper trunk) and synchronised with digital video data. The amplitude and root mean square of acceleration and stride duration were calculated and then analysed by three-way analysis of variance to test effects of running conditions, device location, and running speed. Bland-Altman analysis was used to evaluate the test–retest reliability. Marked changes in acceleration were observed in relation to foot strike during running. Stride durations calculated from the vertical accelerations were nearly equal to those estimated from video data. There were significant speed effects on all parameters, and the low test–retest reliability was confirmed in the anterior–posterior acceleration during treadmill running and the anterior–posterior acceleration at slow speed during treadmill and overground running.     

“长株潭”两型社会体育科技服务研究

通过完善"长株潭"两型社会体育管理部门的工作机制、设立体育科技信息服务机构、成立"体育产品生产技术指标"服务机构、完善全民健身服务机制等措施可有效提高"长株潭"两型社会体育科技服务的水平。     

Physical Education Teachers in their Figurations: A Sociological Analysis of Everyday 'Philosophies'

This paper seeks to explain the socio-genesis of PE teachers' 'Philosophical' (or, rather, ideological) orientations from a sociological (specifically, figurational) perspective. Starting from the premise that such 'philosophies' cannot be adequately explained by studying either the ideas themselves or the teacher (him or herself) in isolation, it argues that PE teachers' everyday 'philosophies', and the underlying ideologies therein, can only be fully understood when teachers are located in the figurations they form with each other--as inescapably interdependent people. Two salient dimensions of the figurations of PE teachers are identified as their deeply-rooted attachments and associated convictions (e.g. towards the value of sport) and their practice of PE or, more precisely, the constraints circumscribing their practice. It is claimed that whilst various social processes (such as medicalization and professionalization) may well prove to be motors that drive psychical change towards health and academic ideologies within PE teachers' views on the nature and purposes of their subject, the particular blend of continuity alongside change--to be found at the personal, local and national levels of their figurations--manifests itself in the continuing pre-eminence of a sporting ideology in the everyday 'philosophies' of PE teachers.     

Busy doing nothing? Physical education teachers' perceptions of young people's participation in leisure-sport

Within the substantial body of research examining the professional knowledge of physical education (PE) teachers one particular area remains relatively under-explored: namely, their understandings of young people's participation in leisure-sport and the implications of this, if any, for the practice of PE. There are grounds for thinking, however, that in this aspect of their professional knowledge PE teachers might not be as conversant with patterns of participation—among young people, generally, and their own pupils, in particular—as one might expect. In order to examine this tentative hypothesis, the present study involved focus groups with a total of 29 PE teachers at six secondary schools in England. A central finding of the study was that PE teachers' perceptions of their youngsters' leisure-sport lives tended to be characterized by a blend of myth and reality. Many teachers, for example, underestimated the levels of participation in leisure-sport both of their own pupils and the 15–16 years age group, generally. Nevertheless, the teachers' observations regarding what amounted to growing and diversifying sporting repertoires among their pupils were, to a greater or lesser degree, commensurate with the profiles reported by the pupils, and with wider trends associated with the changing lifestyles and preferences of young people. The paper concludes by briefly locating this study of professional knowledge within the sociology of knowledge, while observing that the content and form of PE for Year 11 pupils at the six schools in this study appeared to be informed by the common-sense, everyday knowledge of PE teachers rather than by evidence from national or local surveys of young people or studies of their own pupils.