Remote ischaemic preconditioning shortens QT intervals during exercise in healthy subjects     

Maxime Caru  François Lalonde  Hugo Gravel  Chantal Daigle  François Tournoux  Vincent Jacquemet 《European Journal of Sport Science》2016,16(8):1005-1013

The protective action of remote ischaemic preconditioning (RIPC) has been demonstrated in the context of surgical interventions in cardiology. Application of RIPC to sports performance has been proposed, but its effect on the electrocardiogram (ECG) during exercise remains unknown. This exploratory study aims to measure the changes in ventricular repolarization observed during exercise following RIPC in healthy subjects. In an experimental randomized crossover study, 17 subjects underwent two bouts of constant load exercise tests at 75% and 115% of gas exchange threshold (GET). Prior to exercise, they were allocated to either control or RIPC intervention with four cycles of 5?min of ischaemia followed by 5?min of reperfusion. ECG was continuously recorded during the protocol. QT and RR intervals were measured every 30?s (on an average tracing of the preceding 10?s). Although the time course of RR intervals did not differ between the two interventions (p?=?.56 at 75% GET and p?=?.74 at 115% GET), a significant shortening of QT intervals (measured from Q onset to T end) was observed during exercise (mean?±?standard deviation of RIPC vs. control: ?32?±?19?ms at 75% GET (p?p?p?p?相似文献   

Understanding the consequences of victory amongst sport spectators: The mediating role of BIRGing     

Iouri Bernache-Assollant  Yves Chantal  Patrick Bouchet  Marie-Françoise Lacassagne 《European Journal of Sport Science》2016,16(6):719-725

Prior work on the relationships between team identification and spectators’ reactions to one's team victory has largely neglected the potential effects of mediating variables. In this research, we proposed that the process of Basking in Reflected Glory [BIRGing – the tendency to reduce the distance between oneself and one's team; Cialdini, R. B., Bordon, R. J., Thorne, A., Walker, M. R., Freeman, S., &; Sloan, L. R. (1976). Basking in reflected glory: Three (football) field studies. Journal of Personality and Social Psychology, 34, 366–375] would lead spectators to almost take ownership of victories and share its benefits, thereby impacting their sense of national belonging in a positive manner. To this end, participants (N?=?73) were asked to watch an edited video clip showing a victory of the French national rugby team playing against South Africa. As expected, results revealed that BIRGing mediated the relationship between team identification and one's sense of national belonging. In closing, a number of implications are discussed along with future research avenues pertaining to the sport spectatorship literature.  相似文献   

Compatibility and Complementarity of Classroom Ecology and Didactique Research Perspectives in Physical Education     

Jérôme Leriche  Jean-François Desbiens  Chantal Amade-Escot  Richard Tinning 《Quest (Human Kinetics)》2016,68(4):497-520

ABSTRACT

A large diversity of theoretical frameworks exists in the physical education literature. This article focuses on two of those frameworks to examine their compatibility and their complementarity. The classroom ecology paradigm concentrates on the balance between three task systems, two vectors, and programs of actions proposed by the physical education teacher and negotiated by students. The didactique research program studies the teaching and learning processes using the concepts of didactic contract and didactic milieu that focus on how the knowledge content emerges within teacher and students’ joint action. The article underlines the complementarity and the compatibility of the two frameworks when analyzing teaching and learning in physical education. It argues that the gray areas left by the classroom ecology paradigm could be filled with the insights of the didactique research program. A concise example of how the two frameworks have already been utilized is presented.  相似文献   

Governmentality, education and quality management     

Maarten Simons 《Zeitschrift für Erziehungswissenschaft》2002,5(4):617-633

Summary We will focus on the recent concern — and even ‘obsession’ — with quality in education from the perspective of changes in how we are governed and governing ourselves. Therefore, we will explore advanced liberalism as a form of ‘governmentality’ and point out that (political) government has to submit itself to a ‘permanent economic tribunal’, i.e. judge everything constantly by the principles of entrepreneurship and competition. Furthermore, not only political government, but foremost self-government should be understood in relation to the tribunal: free people objectify within them skills and competencies, which are valuable in a (market) environment. Moreover we argue that management rationality and technology try to establish a double bond within the organization by regarding the worker as an enterprising self. Having pointed out the relationship between entrepreneurship and (self-)management, it is possible to describe how quality becomes a permanent obsession to those managing their life or an organization as an enterprise. After describing management and quality (and their relation) as a ‘function’ of entrepreneurship it is possible to understand how learning is part of it, and how quality management and schooling become entwined at all levels.

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Zusammenfassung ‚Gouvernementalité’, Bildung und Qualit?tsmanagement — Versuch einer Kritik des Konzepts der st?ndigen Qualit?tskontrolle Im vorliegenden Text wird die neuerliche — fast obsessive — Besch?ftigung mit ‚Qualit?t’ im Bildungssystem in den Blick genommen, und zwar vor dem Hintergrund der sich ver?ndernden Formen, in denen wir bestimmt (regiert) werden und uns selbst bestimmen. Dazu wird der fortgeschrittene Liberalismus als Form von ‚Gouvermentalité’ (Foucault) untersucht und herausgestellt, dass (politische) Kontrolle sich einem „st?ndigen wirtschaftlichen Tribunal“ unterziehen muss, d.h. alles kontinuierlich an Prinzipen von Unternehmertum (Entrepreneurship) und Wettbewerb auszurichten hat. Dieses wirtschaftliche Tribunal wird darüber hinaus nicht nur in Bezug auf das politische Regieren verstanden, sondern vor allem auf die individuelle Selbst-Regierung; denn freie Menschen zeigen in sich selbst Begabungen und Kompetenzen, die in einer marktwirtschaftlichen Umwelt wertvoll sind. Ferner wird argumentiert, dass Managementrationalit?t und-technologie versuchen, eine doppelte Bindung innerhalb der Organisation zu etablieren, indem sie den Arbeiter als ein unternehmerisches Selbst betrachten. Nach einer Darstellung der Beziehung zwischen Unternehmertum und (Selbst-)Management l?sst sich im Weiteren beschreiben, wie Qualit?t zur Obsession für diejenigen wird, die ihr Leben oder eine Organisation als Unternehmen managen. Im Anschluss an die Er?rterung von Management und Qualit?t (und deren Beziehung) als Funktion des Unternehmertums l?sst sich verstehen, welchen Part das Lernen in diesem Zusammenhang spielt und wie Qualit?tsmanagement und Schulwesen auf allen Ebenen miteinander verflochten sind.

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Students' privacy concerns in learning analytics: Model development     

Chantal Mutimukwe  Olga Viberg  Lena-Maria Oberg  Teresa Cerratto-Pargman 《British journal of educational technology : journal of the Council for Educational Technology》2022,53(4):932-951

Understanding students' privacy concerns is an essential first step toward effective privacy-enhancing practices in learning analytics (LA). In this study, we develop and validate a model to explore the students' privacy concerns (SPICE) regarding LA practice in higher education. The SPICE model considers privacy concerns as a central construct between two antecedents—perceived privacy risk and perceived privacy control, and two outcomes—trusting beliefs and non-self-disclosure behaviours. To validate the model, data through an online survey were collected, and 132 students from three Swedish universities participated in the study. Partial least square results show that the model accounts for high variance in privacy concerns, trusting beliefs, and non-self-disclosure behaviours. They also illustrate that students' perceived privacy risk is a firm predictor of their privacy concerns. The students' privacy concerns and perceived privacy risk were found to affect their non-self-disclosure behaviours. Finally, the results show that the students' perceptions of privacy control and privacy risks determine their trusting beliefs. The study results contribute to understand the relationships between students' privacy concerns, trust and non-self-disclosure behaviours in the LA context. A set of relevant implications for LA systems' design and privacy-enhancing practices' development in higher education is offered.

Practitioner notes

What is already known about this topic

• Addressing students' privacy is critical for large-scale learning analytics (LA) implementation.
• Understanding students' privacy concerns is an essential first step to developing effective privacy-enhancing practices in LA.
• Several conceptual, not empirically validated frameworks focus on ethics and privacy in LA.

What this paper adds

• The paper offers a validated model to explore the nature of students' privacy concerns in LA in higher education.
• It provides an enhanced theoretical understanding of the relationship between privacy concerns, trust and self-disclosure behaviour in the LA context of higher education.
• It offers a set of relevant implications for LA researchers and practitioners.

Implications for practice and/or policy

• Students' perceptions of privacy risks and privacy control are antecedents of students' privacy concerns, trust in the higher education institution and the willingness to share personal information.
• Enhancing students' perceptions of privacy control and reducing perceptions of privacy risks are essential for LA adoption and success.
• Contextual factors that may influence students' privacy concerns should be considered.

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Ulla de Stricker, Jill Hurst-Wahl, Editors , The Information and Knowledge Professional's Career Handbook: Define and Create Your Success, Chandos Publishing, Oxford (2011)283 pp. $80.00.     

Alexandra Simons 《The Journal of Academic Librarianship》2011,37(5):450

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Teachers making sense of result-oriented teams: A cognitive anthropological approach to educational change     

Sijko J. Wierenga  Frans H. Kamsteeg  P. Robert Jan Simons  Marcel Veenswijk 《Journal of Educational Change》2015,16(1):53-78

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Light emitting diodes and the lighting revolution: The emergence of a solid-state lighting industry     

Susan Walsh Sanderson  Kenneth L. Simons 《Research Policy》2014

Emergence of new industries from evolving technologies is critical to the global economy, yet has been relatively understudied due to the paucity of available data. This study draws lessons on industry emergence, by analyzing how a solid-state lighting (SSL) industry grew out of light emitting diode (LED) technologies that evolved for half a century, with participation by tens of thousands of researchers in universities, national laboratories, and firms. Using data on publications, patents, and firms combined with business history we trace the evolution of SSL through a succession of market niches. At times a few researchers with unorthodox research approaches made breakthroughs that greatly advanced particular technology trajectories and pushed LED research in unexpected directions. A succession of LED market niches advanced the technology and provided profits to incentivize continuing research while reducing cost and improving efficacy of LEDs. Innovating firms developed a thicket of patents and captured substantial profit, but were embroiled in extensive litigation that was ultimately resolved through cross-licensing. A major new generation of lighting products is now disrupting the traditional lighting industry. Although the leading incumbent lighting firms all invested early and heavily in SSL, the industry's future leadership is uncertain.  相似文献   

Genres,rules, and collective rhetorics: Applying the requirements‐problems‐strategies approach     

Herbert W. Simons 《Communication quarterly》2013,61(3):181-188

Designed initially as a way of understanding the often anomalous rhetoric of those who lead social movements, Simons' “Requirements‐Problems‐Strategies” approach has been applied in recent years to other collective rhetorics and other leadership roles. Presented here is an extension and elaboration of RPS framework and a review of illustrative scholarship.  相似文献   

Leveling the playing field in ICT design: Transcending knowledge roles by balancing division and privileging of knowledges     

Rachel N. Simons  Kenneth R. Fleischmann  Loriene Roy 《The Information Society》2020,36(4):183-198

Abstract

This article develops a conceptual model of users’ and designers’ knowledge roles in the information and communication technology design process. The “ideal” center at the intersection of the axes for division of knowledge work and privileging of knowledges represents a balanced distribution of knowledge work between users and designers and an avoidance of privileging either group over the other. The article then applies this model to analyses of the design process for six video games wherein the knowledges of Indigenous peoples in North America were mobilized. It concludes by discussing implications for research and design practice, particularly for broadening the participation and self-articulation of marginalized groups.  相似文献