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121.
This article reports findings from a study of principals in five multiethnic schools in England. Findings are presented in terms of the major priorities or values held by the principals, the strategies they instituted to bring their priorities to life, and some of the challenges they continue to face in this endeavor. The principals involved believed that they could make a difference in their schools and were proactive, but at the same time, realistic about what could be achieved. They distinguished themselves by aggressively tackling disadvantages related to ethnicity, racism, culture, and poverty. 相似文献
122.
The action research process as a means of helping student teachers understand and fulfil the complex role of the teacher 总被引:1,自引:1,他引:0
The Mid-Town elementary preservice cohort programme at OISE/UT has, for several years, had action research by student teachers as a major component. In this article, the authors outline the view of action research held by the faculty team and explain why they turned to action research as a strategy in teacher education. They detail how the action research requirement is implemented in the programme, and describe the effects of the action research process on the understandings, skills and behaviour of the preservice teachers. The findings suggest this is potentially a very valuable approach to teacher education, provided certain other conditions are fulfilled. 相似文献
123.
Critical reflections of action research used for professional development in a Middle Eastern Gulf State 总被引:1,自引:1,他引:0
Alyson McGee 《Educational Action Research》2013,21(2):235-250
This article describes and critically reflects on an action research project used for professional development purposes in a Middle Eastern Gulf State. The aim of the project was to improve professional development experiences for a group of in‐service teacher educators, who were English as Second Language advisers. The initial discussion highlights different ideological and methodological approaches to action research and identifies core characteristics that were framed to evaluate the project. Second, the background to the local context is described followed by the action research project, the methodology and outcomes. Using an evaluative framework, the subsequent discussion describes the successes of this project. These include encouraging reflection in a collaborative environment, promoting a culture of learning and supporting the participant’s reconstruction of professional knowledge situated in practice. Finally, there is a critical reflection around a number of challenges, tensions and questions that emerged from the project, centred on the loss of core democratic values underpinning action research. These concerns highlight power relationships and the ownership and control of research, which become more apparent in mandatory situations and hierarchical contexts. 相似文献
124.
The wage and job satisfaction impacts for over-educated workers have been well-documented; yet little attention has been paid to the consequences for firms. In this paper we examine over-education from the perspective of the workplace. Using linked employer–employee data for the United Kingdom, we derive the standard worker-level penalties on wages and job satisfaction. We then show how over-education rates across workplaces adversely influence workplace pay and workplace labor relations. For individual workers who may be at-risk of over-education, we also distinguish between workforce composition effects and workplace labor practices, such as hiring. The effect of over-education on job satisfaction is particularly strong and its effects are evident at the workplace level. Our results suggest that investigations of over-education at the level of the firm are a promising area of inquiry. 相似文献
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126.
Tao Wen Quanbo Ge Xinan Lyu Lei Chen Costas Constantinou Clive Roberts Baigen Cai 《Journal of The Franklin Institute》2021,358(1):131-150
As a typical railway Cyber-physical System (CPS), radio-based train control systems have been playing an increasingly important role in rail transit. The engaged network, Global System for Mobile Communications for Railway (GSM-R), which is an out-dated wireless communication technology, will be decommissioned due to diminishing support from industry, and a new generation successor, e.g. Long-Term Evolution (LTE), is urgently required to replace the current network. The radio-based train control systems must be safety critical, which relies on a high-security Data Communication System (DCS). In this paper, a novel wireless network migration methodology in DCS is proposed. By using this methodology, the high-security required DCS performance in radio-based train control systems is maintained and the network migration cost, e.g. the used number of base station (BS), is reduced when updating the GSM-R to LTE. 相似文献
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128.
Though not without its critics, the concept of political cultureis potentially of much value in aiding the explanation of politicalprocesses and behavior. Unfortunately, however, basic data onpolitical culture remains scarce for many countries, Australiaamong them. Although there is a good deal of impressionisticliterature outlining the contours of the Australian politicalculture, broadly defined, very little systematic evidence hasbeen adduced to test the many assertions made in these writings.This paper injects some empirical substance into the argument.Using the Australian National Social Science Survey 198487panel, based on a nationwide sample of 1311 respondents, itpresents evidence on five dimensions of mass political culturein Australia, namely, attitudes towards reliance on government,the responsiveness of government, citizen duty, authoritarianismand federalism. In addition to outlining the basic distributionsof public opinion on these dimensions, the paper uses multivariateanalysis to investigate both the causes and consequences ofthese attitudes. 相似文献
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130.
In two experiments, we investigated the impact of odor preexposure treatments on the acquisition of an olfactory discrimination in dogs. In the first experiment, four groups of dogs were each given five days’ odor-exposure treatment prior to discrimination training. Dogs in the exposure group were exposed to anise extract (S+) for 30 min daily. Dogs in the Pavlovian-relevant pairing group received six daily delayed-conditioning trials to the same S+. The Pavlovian-irrelevant pairing group received conditioning trials to almond extract (S'). Dogs in the control group received no pretreatment. All of the dogs were then trained to detect S+ from a background pine odor (an AX-vs.-X discrimination). The Pavlovian-relevant pairing group acquired the odor discrimination significantly faster than all of the other exposure and control groups, and the remaining groups acquired the discrimination at the same rate as the no-exposure control group. In a second experiment, we extended these results to a within-subjects design using an AX-versus-BX discrimination. Six dogs were simultaneously trained on two different odor discriminations, one discrimination in which the S+ was previously Pavlovian conditioned, and one discrimination in which the S+ was novel. All of the dogs learned the odor discrimination with the previously conditioned S+ faster than they learned the novel odor discrimination, replicating the results of Experiment 1, and demonstrating that familiarity in the form of Pavlovian conditioning enhances odor-discrimination training. The potential mechanisms of the facilitated transfer of a Pavlovian conditioned stimulus to discrimination training are discussed. 相似文献