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71.
Alberto Renieri 《Endeavour》1984,8(1):35-43
The generation of coherent synchrotron radiation using beams of relativistic electrons passed through magnetic undulators opens up tremendous scope for photochemistry in general and isotopic separation by laser in particular. Applications for plasma heating in Tokamak-type installations to trigger off the controlled nuclear fusion process are also conceivable. 相似文献
72.
In this preliminary review, the authors analyse the effects of privatisation on diversity in higher education (HE) systems by exploring the consequences of the establishment of HE Institutions by non-public organisations. The rising importance of privatisation in Europe (Western and transitional economies), Latin America, and Southeast Asia is analysed. Then follows detailed examinations of private-sector HE in countries representative of all these geographical areas to determine how far privatisation has stimulated diversity. The preliminary results indicate that in each case the private sub-sector has promoted limited and partial diversification. In general, though, the more recent private establishments, created to satisfy increasing demand for HE, have nonetheless focused predominately on teaching, have undertaken little, or no, research and appear to be of lower quality than the older institutions. The private sub-sector is characterised mostly by its low-risk behaviour, and a concentration on low-cost and/or safer initiatives. Public authorities must share at least a partial responsibility for some of the negative side effects of the development of private higher education. 相似文献
73.
74.
Carlos Alberto Torres 《European Journal of Education》2015,50(3):262-279
This article focuses on the role of global universities and globalisations in an age of global interdependence and cosmopolitanism. Competing agendas that result from actions and reactions to multiple globalisations are considered in relation to global citizenship education. These agendas are crucial in understanding dilemmas of the local and the global in relation to education. Key emerging agendas are highlighted, including those of the hyperglobalisers, skeptics and transformationists. Three themes are central for this conversation, namely a) how multiple globalisations are impacting global life and academics, b) how networks have become privileged sites for global education, and c) the implications of globalisation and networks for global citizenship and global universities. 相似文献
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76.
Paolo Caravaggi Alberto Leardini Claudio Belvedere 《Sports biomechanics / International Society of Biomechanics in Sports》2020,19(3):382-394
AbstractHead and neck injuries are common in contact sports such as American football. Different mechanisms can produce such injuries, including compressive impact forces on the crown of the helmet with the neck in a flexed chin-down position. The aim of this paper was developing and testing a novel Cervical Spine Protection Device (CSPD) designed to keep the neck within its safe physiological range. The cervical spine range of motion (ROM) of ten participants was measured under four conditions: free; wearing a football gear; wearing the CSPD; and wearing the CSPD underneath the gear. The CSPD was tested in terms of passive and active restraint of head motion, and for its capability to improve endurance time of the neck extensor muscles. Wearing the CSPD resulted in a significant 40–60% reduction in ROM across the three anatomical planes, and in increased endurance of the neck extensor muscles (FREE: 114 ± 57 s; CSPD: 214 ± 95 s; p = 0.004). In quasi-static loading conditions the CSPD was capable of keeping the neck within its physiological range, thus it may be used to decrease the risk of severe injuries due to dangerous chin-down positions. 相似文献
77.
William W. Brickman Willy Strzelewicz William Taylor Joachim H. Knoll Mark Blaug Oskar Anweiler Andreas Fuchs Gilda L. de Romero Brest Alberto Aráoz Wolfgang Brezinka Enrique Oteiza W. F. Connell Robert J. Havighurst Daniel F. Wozniak Wolfgang Roth Karl Frey Alfons Otto Schorb 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1970,16(2):221-249
78.
Cultural Studies of Science Education - This study addresses the need for innovative research approaches in science education for understanding better the inter-relationships between emotion and... 相似文献
79.
Alberto Villani Jesuina Lopes de Almeida Pacca Denise de Freitas 《Science & Education》2009,18(1):125-148
This paper analyzes the most significant events occurring in Brazil’s educational, social and political areas over the last half century, viewed against a background of relevant worldwide events. The hypothesis presented here is that the relations between the country’s educational policies, the demands of the various segments of academia, and the public school system have always been strained. This strain has contributed positively to the evolution of academic knowledge and production, to the design of more modern curricular projects by institutional authorities, and to the initial recognition of the specific construction of school knowledge by the school system itself. However, the interaction of these major institutions lacks a crucial element—one that would lead to an effective change in the education of science teachers and produce a positive impact on Brazil’s schools—namely, the wholehearted participation of science teachers themselves. With this analysis, we intend to contribute by offering some perspectives and proposals for science teacher education in Brazil. 相似文献
80.
Bal Chandra Luitel Elisabeth Settelmaier Les Pereira Paula Joyce Emilia Nhalevilo Alberto Cupane Peter Charles Taylor 《Cultural Studies of Science Education》2009,4(3):529-552
In focusing on the Kincheloe and Tobin paper, ‘The Much Exaggerated Death of Positivism,’ this forum explores the hegemony of positivism in the professional practices of a group of educators whose research expertise lies in the fields of science education, mathematics education and leadership education. Responding to the first question, ‘What is your personal/professional experience of the hegemony of positivism?’, four key issues arise: is positivism part of the external world or is it within us (and thus what is our agency)?, the role of positivism as a driver of Western cultural imperialism, dualism as the chief logic of positivism, and the difficulty of responding to positivism from a pluralist perspective. The second question, ‘Is rapprochement between positivism and other paradigms possible and/or desirable without being re-colonised?’, raises a number of key issues that, although relatively new to science education, are of increasing interest to cultural studies researchers keen to embrace alternative research paradigms with which to create culturally inclusive science curricula. The discussants reveal their personal experiences of being marginalised by the hegemony of positivism and give voice to a range of opinions about how best to respond. The integral perspective of spiral dynamics is proposed as a model of paradigm evolution, our fundamental assumptions about modern progress are questioned, and the non-dualist logic of dialectics is explored as a more inclusive rationality for researchers. In the spirit of counter-hegemonic cultural studies, the discussants draw on their personal Buddhist and Hindu perspectives to open new doorways into complex ontological systems lying beyond the simplistic materialism of crypto-positivism. We are given a glimpse of powerful means of generating new insights into the emergent universe (within and without) that an evolving science endeavours to explain. 相似文献