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311.
Irwin Feller 《Minerva》2009,47(3):323-344
Neoliberal precepts of the governance of academic science-deregulation; reification of markets; emphasis on competitive allocation
processes have been conflated with those of performance management—if you cannot measure it, you cannot manage it—into a single
analytical and consequent single programmatic worldview. As applied to the United States’ system of research universities,
this conflation leads to two major divergences from relationships hypothesized in the governance of science literature. (1)
The governance and financial structures supporting academic science in the United States’ system of higher education are sufficiently
different from those found in many other OECD countries where these policies have been adopted to produce political pressures
for an increase rather than a decrease in governmental control over university affairs. (2) The major impact upon academic
science of performance measurement systems has come not externally from new government requirements but internally from the
independent adoption of these techniques by universities, initially in the name of rational management and increasingly as
devices to foster reputational enhancement. The overall thrust of the two trends in the U.S. has been less a shift as experienced
elsewhere from bureaucratic to market modes of governance than the displacement of professional-collegial control by internal
bureaucratic control. 相似文献
312.
Biochemical markers of inflammation are emerging as new predictors of risk of cardiovascular disease (CVD) and may alter acutely with exercise. Few studies have been conducted on the effects of walking on these markers or whether different walking intensities elicit varied effects. As there is growing interest in modifiable lifestyle factors such as walking to reduce CVD risk, these inflammatory responses warrant investigation. The aim of this study was to compare the effects of walking at 50% versus 70% of predicted maximal heart rate on C-reactive protein (CRP), plasma fibrinogen, and triglycerides in sedentary post-menopausal women. Twelve post-menopausal women (mean age 58 years, s +/-6; stature 1.62 m, s+/-0.06; body mass 66.8 kg, s +/-6.2) completed two 30-min treadmill walks in a randomized cross-over design. Fasted blood samples were taken (for the determination of plasma fibrinogen, CRP, and lipids) before, immediately after, and 1 and 24 h after exercise. Triglyceride concentrations decreased from pre-exercise to 24 h post exercise at both walking intensities (time x group interaction, P < 0.05). No significant effects were observed for plasma fibrinogen, CRP, total cholesterol, low-density or high-density lipoprotein cholesterol (time x group interaction, P > 0.05). The results of this study suggest that fasting plasma triglycerides are decreased on the morning after 30 min of brisk walking at either 50% or 70% of maximal heart rate (moderate and vigorous intensity). 相似文献
313.
Irwin G Kerwin DG 《Sports biomechanics / International Society of Biomechanics in Sports》2007,6(3):361-374
Kinetic analyses of the chalked bar longswing on high bar and its associated progressions were used to explain musculoskeletal contributions during the performance of these skills. Data on four international male gymnasts performing three series of chalked bar longswings and eight progressions were recorded. Customized body segment inertia parameters, two-dimensional kinematics (50 Hz), and bar forces (1000 Hz) were used as input to inverse dynamic modelling. The analysis focused on the relative contributions of the knees, hips, and shoulders with root mean squared differences between the chalked bar longswing and the progressions being used to rank the progressions. Seventy per cent of the total work occurred between 200 degrees and 240 degrees of angular rotation in the longswing, 67% of which was contributed by the shoulders. The shoulders were also dominant in all progressions, with the largest such contribution occurring in the looped bar longswing with "no action". The least similar progression was the looped bar pendulum swing, while the most similar was the chalked bar bent knee longswing. This study provides a useful means for ranking progressions based on their kinetic similarity to the chalked bar longswing and builds on earlier research in identifying that progressions can be classified into those similar in physical demand (kinetics) and those similar in geometry (kinematics). 相似文献
314.