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51.
ABSTRACT

One remarkable feature of the contemporary school landscape in England is the number of schools that have chosen the co-operative framework to shape their work and relationships. When a group of schools decides to become a co-operative trust, leadership challenges arise both in the process of establishing an inclusive collaborative cluster and in living out co-operative values. To add to the limited literature on co-operative school leadership, a study in a school cluster trust explored headteachers’, governors’ and teachers’ perspectives and beliefs through interviews, group discussions and questionnaires. These data sources revealed some of the motivations for, benefits of, and strategies to support inter-school collaboration guided by the co-operative values of democracy, solidarity, equality, equity, self-help and self-responsibility. Importantly, a range of perspectives on the extent to which leadership was viewed as, and appeared to be, an inclusive practice undertaken by all members of the cluster was identified. A particular contribution of this work is that it exemplifies resonances between the values and principles of the co-operative movement and those of the Leadership for Learning framework. Since these two models are being increasingly adopted and integrated into a variety of educational settings, the research findings may inform leadership practice more widely.  相似文献   
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This article examines Austria’s efforts to reform teacher education during the period of the Dual Monarchy, 1867–1914. It offers insight into the role of teachers in Austrian society and how this role changed over time. It demonstrates that, during this period, teaching became an institutionalised and professionalised occupation. This process of professionalisation brought teachers firmly under state control, leading to conflict between teachers and the Austrian educational bureaucracy. This process also led to the development of a robust network of teachers’ associations to represent the interest of Austrian teachers and to contribute to their professional development. This article utilises documents from the Austrian educational bureaucracy, printed curriculum and pedagogical journals to illustrate that Austrian teacher training reforms offer crucial insight into the development of public education in the late nineteenth century.  相似文献   
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A new approach for partitioning test items into dimensionally distinct item clusters is introduced. The core of the approach is a new item-pair conditional-covariance-based proximity measure that can be used with hierarchical cluster analysis. An extensive simulation study designed to test the limits of the approach indicates that when approximate simple structure holds, the procedure can correctly partition the test into dimensionally homogeneous item clusters even for very high correlations between the latent dimensions. In particular, the procedure can correctly classify (on average) over 90% of the items for correlations as high as .9. The cooperative role that the procedure can play when used in conjunction with other dimensionality assessment procedures is discussed.  相似文献   
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Kako (1999) reviews the evidence for syntactic competencies in several animal species exposed to artificial language systems, emphasizing the importance of core syntactic properties such as argument structure and closed-class items. We present evidence from our dolphin studies for the acquisition of the closed-class functionality of demonstratives, prepositions, conjunctions, and locatives. Sensitivity to argument structure is also evidenced by wholly untrained and consistent interpretations of the dolphin to probes of anomalous syntactic structures. These results are generated within our comprehension-based paradigm, which enables us to provide convincing objective evidence for the development and generalization of concepts by the dolphin subject. Demonstrations of animal language competencies may illuminate certain aspects of human linguistic competence by suggesting that the particular modeled subsets can derive from general cognitive mechanisms, rather than language-specific ones.  相似文献   
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How individuals perceive themselves and how they are perceived by others are an important part of the relationships between childbirth educators, nurses, other health-care providers, and the families they serve. In this paper, four studies are reviewed. One study focused on labor nurses' perception of their roles. Three other studies, each using a different research strategy, examined mothers' perceptions of their experiences during the peripartum period.  相似文献   
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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 ( > 4 km) time-trials held in conditions of unvarying wind and gradient. For shorter races (e.g. a 1 km 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   
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