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71.
72.
This paper argues that theorizations of the state which are sensitive to both its durability and its permeability, and theorizations which can account for the massive interconnections between local and global forces as well as different material and discursive sites are missing from contemporary work in the sociology of education. Drawing on Foucault's notion of 'governmentality' as a key resource for addressing this impasse, the authors highlight the constant fabrication of racial identity through the production of the pure space of racial origins or 'resentment'—the process of defining one's identity through the negation of the other. This dynamic, the article maintains, now informs key discourses both in popular culture and education. The authors conclude that these processes operate in tandem in the prosecution of the politics of racial exclusion in our times, informing key policy debates, including those around affirmative action and bilingual education. 相似文献
73.
Greg Atkinson Richard Davison Asker Jeukendrup Louis Passfield 《Journal of sports sciences》2013,31(9):767-787
Abstract In this holistic review of cycling science, the objectives are: (1) to identify the various human and environmental factors that influence cycling power output and velocity; (2) to discuss, with the aid of a schematic model, the often complex interrelationships between these factors; and (3) to suggest future directions for research to help clarify how cycling performance can be optimized, given different race disciplines, environments and riders. Most successful cyclists, irrespective of the race discipline, have a high maximal aerobic power output measured from an incremental test, and an ability to work at relatively high power outputs for long periods. The relationship between these characteristics and inherent physiological factors such as muscle capilliarization and muscle fibre type is complicated by inter-individual differences in selecting cadence for different race conditions. More research is needed on high-class professional riders, since they probably represent the pinnacle of natural selection for, and physiological adaptation to, endurance exercise. Recent advances in mathematical modelling and bicycle-mounted strain gauges, which can measure power directly in races, are starting to help unravel the interrelationships between the various resistive forces on the bicycle (e.g. air and rolling resistance, gravity). Interventions on rider position to optimize aerodynamics should also consider the impact on power output of the rider. All-terrain bicycle (ATB) racing is a neglected discipline in terms of the characterization of power outputs in race conditions and the modelling of the effects of the different design of bicycle frame and components on the magnitude of resistive forces. A direct application of mathematical models of cycling velocity has been in identifying optimal pacing strategies for different race conditions. Such data should, nevertheless, be considered alongside physiological optimization of power output in a race. An even distribution of power output is both physiologically and biophysically optimal for longer ( >4km) time-trials held in conditions of unvarying wind and gradient. For shorter races (e.g. a 1km time-trial), an‘all out’ effort from the start is advised to‘save’ time during the initial phase that contributes most to total race time and to optimize the contribution of kinetic energy to race velocity. From a biophysical standpoint, the optimum pacing strategy for road time-trials may involve increasing power in headwinds and uphill sections and decreasing power in tailwinds and when travelling downhill. More research, using models and direct power measurement, is needed to elucidate fully how much such a pacing strategy might save time in a real race and how much a variable power output can be tolerated by a rider. The cyclist's diet is a multifactorial issue in itself and many researchers have tried to examine aspects of cycling nutrition (e.g. timing, amount, composition) in isolation. Only recently have researchers attempted to analyse interrelationships between dietary factors (e.g. the link between pre-race and in-race dietary effects on performance). The thermal environment is a mediating factor in choice of diet, since there may be competing interests of replacing lost fluid and depleted glycogen during and after a race. Given the prevalence of stage racing in professional cycling, more research into the influence of nutrition on repeated bouts of exercise performance and training is required. 相似文献
74.
75.
Average and advanced readers from the fourth and sixth grades read visually presented words as rapidly as possible. Target words were preceded by a related prime word, an unrelated word, or a neutral warning stimulus. Related trials constituted 75% of the word prime trials for half of the subjects in each group, and only 25% for the other half. All groups were sensitive to this proportion manipulation, showing only faster naming times for related targets in the 25% condition. In the 75% condition, subjects showed inhibition for unrelated targets, as well as facilitation for related targets. The results indicate that the ability to use context deliberately to facilitate word recognition reaches asymptote for the average reader by the sixth grade at the latest, and perhaps by the fourth. This ability does not appear to be one that shows further improvements at higher levels of reading skill. Some possible reasons for the discrepancies between this research and that using incomplete sentence contexts are considered. 相似文献
76.
Amid growing criticism of public universities, there is little discussion of what appropriate institutional evaluation would
entail. Six-year graduation rates are commonly used, and public bachelors granting institutions have lower rates than private
institutions, but with the growth in non-traditional college attendance, these can be misleading. We develop a regression
analysis as a way to evaluate institutions serving vastly different populations. We do this with a dataset constructed from
publicly available sources and focus on the evaluation of public colleges. We show that public colleges are able to do more
with less: our models suggest that with equivalent resources and student populations, public schools would graduate a slightly
larger percentage of students than privates. Since financial resources come from very different sources, we evaluate this
finding closely. 相似文献
77.
78.
Christopher J. McCarthy Greg Brack Catherine J. Brack Hsin-tine Tina Liu Michele Hill Carlson 《Journal of College Counseling》1998,1(2):135-153
This study assessed the relationship of parental attachment and gender to appraisals of conflict with parents in an effort to clarify the psychological mechanisms that mediate the relationship between attachment and psychological well-being. Appraisals of conflict with parents were found to be related to level of attachment and gender. 相似文献
79.
The practicum appears in many different forms in professional education — as field placement, cooperative education, sandwich programs, internship and clinical placement. This review of current literature reveals many different conceptions of the kinds of learning outcomes that can be achieved through learning in the workplace and the contribution that the practicum can make to professional education. In consequence, assessment philosophies and methods are equally varied. Five distinct approaches to assessment of the practicum are identified and the strengths and weaknesses of each are evaluated. While assessment of the practicum in some programs has been very limited, in the best examples cited, integration of the practicum with the educational program has provided opportunities for students to bring together a range of knowledge and skills in a complex natural environment. Well‐designed assessment requirements can make a significant contribution to learning in the practicum by putting pressure on supervisors to structure the opportunities available and by requiring students to identify and reflect on what they have learned. 相似文献
80.