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51.
John Beck 《British Journal of Sociology of Education》1999,20(2):223-238
This paper is concerned with the erosion of educational autonomy in Britain in recent years. Employing an analytical framework derived mainly from the recent work of Basil Bernstein, it examines ways in which weakened boundaries between the educational and the economic/political spheres may be linked to attempts by government in Britain to take over, to an unprecedented degree, domains where educators and producers of knowledge have in the past enjoyed significant, although by no means unqualified, autonomy. Implications for changing educational identities are highlighted, as is Bernstein's central contention that we may be witnessing not merely presentational changes, but rather a fundamental redefinition of the relationship between knowledge and the knower. Certain aspects of the political and educational agenda of the present New Labour government are seen as continuing many of the directions of policy set by previous New Right administrations. It is suggested that such continuities at the level of politics and policy indicate the potency of neo-liberal forms of governmentality and the extent to which they have become entrenched. Postmodernist and modernist interpretations of these developments are briefly considered. Obstacles to effective contestation of the new modalities of control are discussed. 相似文献
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Mangus BC Wallmann HW Ledford M 《Sports biomechanics / International Society of Biomechanics in Sports》2004,3(2):209-220
The aim of our study was to determine if any immediate changes in balance were discernable in college soccer players after a specially designed heading session. Eight male and two female skilled collegiate soccer players had a baseline balance pre-test using the Balance Master, followed by heading 20 balls kicked consecutively by a teammate from the touchline to a point near the goal, which was followed by a post-test using the same testing technique. Paired t-tests were used to compare balance ability between pre- and post-test conditions. There was no difference in balance pre- to post-test (85.3% and 86.2% respectively). No significant difference was noted from pre- to post-test in the mean equilibrium scores for conditions three through six on the Sensory Organization Test, with the exception of condition four, which revealed a significant increase from pre- to post-test. We concluded that an acute session of heading soccer balls may not result in balance changes in collegiate soccer players. 相似文献
54.
Roger Bartlett Jon Wheat Matthew Robins 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(2):224-243
This paper overviews the importance for sports biomechanics of movement variability, which has been studied for some time by cognitive and ecological motor skills specialists but, until quite recently, had somewhat been overlooked by sports biomechanists. The paper considers biomechanics research reporting inter- and intra-individual movement variability in javelin and discus throwing, basketball shooting, and locomotion. The overview does not claim to be comprehensive and we exclude such issues as the theoretical background to movement and coordination variability and their measurement. We overview evidence, both theoretical and empirical, of inter-individual movement variability in seeking to achieve the same task goal, in contrast to the concept of “optimal” movement patterns. Furthermore, even elite athletes cannot reproduce identical movement patterns after many years of training, contradicting the ideas of motor invariance and “representative” trials. We contend that movement variability, far from being solely due to neuromuscular system or measurement “noise” – as sports biomechanists may have previously supposed – is, or could be, functional. Such functionality could allow environmental adaptations, reduce injury risk, and facilitate changes in coordination patterns. We conclude by recommending that sports biomechanists should focus more of their research on movement variability and on important related topics, such as control and coordination of movement, and implications for practice and skill learning. 相似文献
55.
Matthew B. Rhudy Scott B. Dreisbach Matthew D. Moran Marissa J. Ruggiero Praveen Veerabhadrappa 《Journal of sports sciences》2020,38(5):503-510
ABSTRACTAccelerometer cut points are an important consideration for distinguishing the intensity of activity into categories such as moderate and vigorous. It is well-established in the literature that these cut points depend on a variety of factors, including age group, device, and wear location. The Actigraph GT9X is a newer model accelerometer that is used for physical activity research, but existing cut points for this device are limited since it is a newer device. Furthermore, there is not existing data on cut points for the GT9X at the ankle or foot locations, which offers some potential benefit for activities that do not involve arm and/or core motion. A total of N = 44 adults completed a four-stage treadmill protocol while wearing Actigraph GT9X sensors at four different locations: foot, ankle, wrist, and hip. Metabolic Equivalent of Task (MET) levels assessed by indirect calorimetry along with Receiver Operating Characteristic (ROC) curves were used to establish cut points for moderate and vigorous intensity for each wear location of the GT9X. Area under the ROC curves indicated high discrimination accuracy for each case. 相似文献
56.
Giles LV Warburton DE Esch BT Fedoruk MN Rupert JL Taunton JE 《Journal of sports sciences》2012,30(3):261-267
The purpose of this study was to determine the effects of short-term normoxic and hypoxic exercise on plasma endothelin-1 and nitric oxide levels, and the relationship of arterial compliance and pulmonary artery pressure to endothelin-1. Seven endurance-trained males completed two incremental and two steady-state exercise tests performed at ventilatory threshold in normoxia and hypoxia (fraction of inspired oxygen = 0.14). Plasma endothelin-1was measured throughout steady-state tests. Arterial compliance using applanation tonometry, plasma nitric oxide and pulmonary artery pressure using Doppler echocardiography were measured before and after exercise. Small arterial compliance and pulmonary artery pressure significantly increased following exercise. There were no main effects of condition or time for plasma endothelin-1and nitric oxide levels. There were no significant relationships between plasma endothelin-1 and arterial compliance or pulmonary artery pressure. In conclusion, mechanisms other than the endothelial system may play a role in the exercise-induced changes in small artery compliance in this study population. Moderate hypoxia and a 30-minute steady-state exercise have limited effects on plasma endothelin-1 in endurance-trained males. 相似文献
57.
Matthew Closter 《Public Library Quarterly》2013,32(2):107-123
This article aims to provide a historical and contemporary perspective on how public libraries establish indicators for measuring success, using the Free Library of Philadelphia as a focus of analysis. From the 1970s though the late 1980s, libraries focused on measuring internal statistics, such as bibliographic resources, to communicate the strength of their collection. Within the past twenty years, libraries have shifted their measurement structures toward outward performance in the communities they serve. The challenge today for libraries such as the Free Library is to establish structured formats for guiding community plans for their particular library and establishing agreed-on measures. Simultaneously, these structures need to incorporate ongoing evaluation methods. 相似文献
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In order to identify factors associated with on-field moral functioning among student athletes within the unique context of football, we examined masculine gender role conflict, moral atmosphere, and athletic identity. Using structural equation modeling to assess survey data from 204 high school football players, results demonstrated that moral atmosphere (i.e., the influence of coaches and teammates) was significantly associated with participants' process of on-field moral functioning across the levels of judgment, intention, and behavior. Neither masculine gender role conflict nor athletic identity significantly predicted moral functioning, but the results indicated that participants' identification with the athlete role significantly predicted conflict with socialized gender roles. Results suggest that in the aggressive and violent sport of football, coaches can have a direct influence on players' moral functioning process. Coaches can also have an indirect effect by influencing all the players so that a culture of ethical play can be cultivated among teammates and spread from the top down. 相似文献
60.
Bernard Beck 《Multicultural Perspectives》2013,15(1):24-26
Popular culture includes stories that define and justify the existence of groups and nations. Among those stories are creation accounts, especially stories of the forming of nations through struggles for liberation from oppression. The useful liberation myths are exemplified by two recent films: V for Vendetta and Children of Men. Another recent film, The Wind That Shakes the Barley, gives a sober and nuanced account of the Irish Rebellion. It includes the ambiguities of liberation events and the problems that arise and continue after the glorious moment of liberation. 相似文献