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341.
Rob Wilson 《Inter-Asia Cultural Studies》2013,14(4):583-597
Abstract San Francisco, since its global takeoff in the Gold Rush Days and long‐standing trafficking in Bohemian, socialist, queer, and left‐leaning energies in and beyond the Beat era of the 1960s, has a complicated global/local history of trying to disentangle its city‐space and urban imaginary from the Greco‐Roman will‐to‐supremacy that would turn California into a frontier settlement of Asian/Pacific domination and US‐framed empire. Forces of social becoming like the Beats and post‐Beat hippies as well as more experimental authors like Jack Spicer, Maxine Hong Kingston, Frank Chin, and Bob Kaufman helped to forge a different literary‐social vision of San Francisco and the Pacific Rim city as a porous community of transnational innovation and outer‐national becoming. This paper will invoke some literary and film texts from Howl and Tripmaster Monkey to Vertigo to Margaret Cho stand‐up performances as well as some geopolitical studies, such as Gray Brechin’s Imperial San Francisco and City Light Press’s Reclaiming San Francisco to substantiate this double vision of San Francisco as global/local US site of (a) imperial ratification and (b) counter‐orientalist deformation. 相似文献
342.
Recovery from a bout of exercise is associated with an elevation in metabolism referred to as the excess post-exercise oxygen consumption (EPOC). A number of investigators in the first half of the last century reported prolonged EPOC durations and that the EPOC was a major component of the thermic effect of activity. It was therefore thought that the EPOC was a major contributor to total daily energy expenditure and hence the maintenance of body mass. Investigations conducted over the last two or three decades have improved the experimental protocols used in the pioneering studies and therefore have more accurately characterized the EPOC. Evidence has accumulated to suggest an exponential relationship between exercise intensity and the magnitude of the EPOC for specific exercise durations. Furthermore, work at exercise intensities >or=50-60% VO2max stimulate a linear increase in EPOC as exercise duration increases. The existence of these relationships with resistance exercise at this stage remains unclear because of the limited number of studies and problems with quantification of work intensity for this type of exercise. Although the more recent studies do not support the extended EPOC durations reported by some of the pioneering investigators, it is now apparent that a prolonged EPOC (3-24 h) may result from an appropriate exercise stimulus (submaximal: >or=50 min at >or=70% VO2max; supramaximal: >or=6 min at >or=105% VO2max). However, even those studies incorporating exercise stimuli resulting in prolonged EPOC durations have identified that the EPOC comprises only 6-15% of the net total oxygen cost of the exercise. But this figure may need to be increased when studies utilizing intermittent work bouts are designed to allow the determination of rest interval EPOCs, which should logically contribute to the EPOC determined following the cessation of the last work bout. Notwithstanding the aforementioned, the earlier research optimism regarding an important role for the EPOC in weight loss is generally unfounded. This is further reinforced by acknowledging that the exercise stimuli required to promote a prolonged EPOC are unlikely to be tolerated by non-athletic individuals. The role of exercise in the maintenance of body mass is therefore predominantly mediated via the cumulative effect of the energy expenditure during the actual exercise. 相似文献
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Rob Foster 《Educational studies》2000,26(1):5-17
The paper begins by outlining recent reforms of initial teacher training in France, changes aimed at moving French teacher training away from its traditional focus on subject knowledge and pedagogic theory towards a stronger emphasis on classroom practice issues such as teaching and learning strategies and motivating reluctant learners. It goes on to examine the perceptions of some French trainee teachers; for example, how well prepared they felt for the challenges ahead and their training and support whilst on placement. Their responses reveal concern about the appropriateness and variability of some of their training, particularly school-based elements and mentor support. The responses also raise some interesting comparisons with experience in the UK and other European countries, all of whom are debating matters such as teacher accountability, societal expectations of the education system and how teachers should be trained. These comparative issues will be the focus for further research. 相似文献
346.
The primary aim of this study was to determine whether variations in rebound speed and accuracy of a tennis ball could be detected during game-simulated conditions when using three rackets strung with three string tensions. Tennis balls were projected from a ball machine towards participants who attempted to stroke the ball cross-court into the opposing singles court. The rebound speed of each impact was measured using a radar gun located behind the baseline of the court. An observer also recorded the number of balls landing in, long, wide and in the net. It was found that rebound speeds for males (110.1?±?10.2?km?·?h?1; mean?±?s) were slightly higher than those of females (103.6?±?8.6?km?·?h?1; P?<?0.05) and that low string tensions (180?N) produced greater rebound speeds (108.1?±?9.9?km?·?h?1) than high string tensions (280?N, 105.3?±?9.6?km?·?h?1; P?<?0.05). This finding is in line with laboratory results and theoretical predictions of other researchers. With respect to accuracy, the type of error made was significantly influenced by the string tension (P?<?0.05). This was particularly evident when considering whether the ball travelled long or landed in the net. High string tension was more likely to result in a net error, whereas low string tension was more likely to result in the ball travelling long. It was concluded that both gender and the string tension influence the speed and accuracy of the tennis ball. 相似文献
347.
Brendan Humphries Grant A. Abt Rob Stanton Narelle Sly 《Journal of sports sciences》2013,31(6):395-399
We describe the physiological characteristics of amateur outrigger canoe paddlers. Twenty-one paddlers (13 males, 8 females) were evaluated for body stature, aerobic power, muscular strength and endurance, peak paddle force, flexibility and 250 m sprint paddle performance at the end of the outrigging season. The mean variables ( - s) for the males were: age 27 - 9 years, height 175 - 5 cm, body mass 80 - 5 kg, arm span 178 - 7 cm, sitting height 100 - 2 cm, aerobic power 3.0 - 0.4 l·min-1, maximum bench press strength 85 - 19 kg, right peak paddle force 382 - 66 N and left peak paddle force 369 - 69 N. For the females, these were: age 26 - 6 years, height 168 - 5 cm, body mass 70 - 8 kg, arm span 170 - 5 cm, sitting height 97 - 3 cm, aerobic power 2.3 - 0.5 l· min-1, maximum bench press strength 47 - 10 kg, right peak paddle force 252 - 63 N and left peak paddle force 257 - 60 N. Analysis of variance revealed diff erences (P ? 0.05) between the dominant and non-dominant sides of the body for peak paddle force, isokinetic internal and external rotation, and flexion and extension torque of the shoulder joint. The outrigger canoe paddlers were generally within the range of scores found to describe participants of other water craft sports. Outrigger canoeists should be concerned with the muscular strength imbalances associated with paddling technique. 相似文献
348.
Abstract This investigation examined physiological and performance effects of cooling on recovery of medium-fast bowlers in the heat. Eight, medium-fast bowlers completed two randomised trials, involving two sessions completed on consecutive days (Session 1: 10-overs and Session 2: 4-overs) in 31?±?3°C and 55?±?17% relative humidity. Recovery interventions were administered for 20?min (mixed-method cooling vs. control) after Session 1. Measures included bowling performance (ball speed, accuracy, run-up speeds), physical demands (global positioning system, counter-movement jump), physiological (heart rate, core temperature, skin temperature, sweat loss), biochemical (creatine kinase, C-reactive protein) and perceptual variables (perceived exertion, thermal sensation, muscle soreness). Mean ball speed was higher after cooling in Session 2 (118.9?±?8.1 vs. 115.5?±?8.6?km?·?h(-1); P?=?0.001; d?=?0.67), reducing declines in ball speed between sessions (0.24 vs. -3.18?km · h(-1); P?=?0.03; d?=?1.80). Large effects indicated higher accuracy in Session 2 after cooling (46.0?±?11.2 vs. 39.4?±?8.6 arbitrary units [AU]; P?=?0.13; d?=?0.93) without affecting total run-up speed (19.0?±?3.1 vs. 19.0?±?2.5?km?· h(-1); P?=?0.97; d?=?0.01). Cooling reduced core temperature, skin temperature and thermal sensation throughout the intervention (P?=?0.001-0.05; d?=?1.31-5.78) and attenuated creatine kinase (P?=?0.04; d?=?0.56) and muscle soreness at 24-h (P?=?0.03; d?=?2.05). Accordingly, mixed-method cooling can reduce thermal strain after a 10-over spell and improve markers of muscular damage and discomfort alongside maintained medium-fast bowling performance on consecutive days in hot conditions. 相似文献
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Rob Gilbert 《British Journal of Sociology of Education》1992,13(1):51-68
This paper explores the significance for citizenship education of claims that Western society is undergoing a major cultural reorientation, known by its protagonists as postmodernism, which is said to have wide‐ranging implications for knowledge, morality, politics and individual identities. In particular, the posited changes raise doubts about the future of citizenship, and the discussion reviews two responses to these questions: Heater's optimistic proposal for a return to the classical ideal, and Wexler's pessimistic assessment of the prospects for citizenship in a society dominated by television and the consumption of images. A third perspective is suggested, based on the expansion of the idea of citizenship from civil, political and welfare entitlements to greater participation in the cultural and economic dimensions of everyday life. It is argued that such a concept can inform a comprehensive and coherent approach to citizenship, and a successful curriculum in citizenship education. 相似文献