163,719 research outputs found
Cultural Aspects of Immediacy in an Asian Classroom Context
No full textAmong the various factors affecting students’ learning, immediacy is
probably the one that has been most studied over the last four decades. Immediacy,
a term coined by Mehrabian (1967), refers to verbal and nonverbal behaviours
used by interlocutors to decrease physical and physiological distance between
them, thus creating affinity, liking and affect. However, a number of questions arise
as to the suitability of the various immediacy scales and their cultural significance
in a non U.S. context, such as Hong Kong. Furthermore we were interested in
possible differences in teachers’ perception based on students’ motivation. This
paper presents the first part of an immediacy study, based on students of the
Department of English of the Hong Kong Polytechnic University (looking into
mapping patterns of behaviours that increase immediacy). The results indicate
that Hong Kong students prefer the holistic approach of the Chinese traditional
teacher, a teacher who goes beyond just teaching in class, and that nonverbal
actions are not high in their list of preferred behaviours in teachers, such as
gestures, walking around the classroom or standing close to students (unlike what
has been observed among U.S. students)
Conoscere per integrare. Il modello di ricerca-azione nel contesto del master in Organizzazione e gestione delle istituzioni scolastiche in contesti multiculturali.
No full textDinanzi ai nuovi compiti di cui la pedagogia è investita, l’approccio interculturale
non si limita ad elaborare metodologie e formulare progetti mirati
alla sola istituzione scolastica. Integrazione e pluralismo sono espressione di
una società culturalmente dialogica ed empatica, dato che la capacità di vedere
‘il simile nel dissimile’ (Adorno, 1991), in primis come paziente morale, è sempre
legata alla capacità di ‘conoscere’ in modo non pregiudizievole l’alterità.
Ne consegue che la pedagogia, nella sua forma teoretica, deve impegnarsi nella
costruzione di progetti formativi che abbiano come orizzonte di senso anche
la costruzione di valori etico-civili (Elia, 2014) fondati sul pluralismo
Building responses to sustainable development challenges: A multistakeholder collaboration framework and application to climate change
No full textThe affirmation of open innovation and collaborative systems is enabling unprecedented opportunities to create business value while facilitating multistakeholder conversation on sustainability issues. In particular, platform-based models are emerging as organization archetypes able to facilitate cooperative dynamics among industrial actors, policy makers, academicians, scientists, and citizens. In this article, we use interdisciplinary business management and collaborative innovation literature to build the conceptual framework of a multisided platform as a collaboration environment gathering actors willing to define responses to sustainable development challenges. We present five dimensions or “genes,” that is, the focus and strategic intent or orientation of the platform (what), the participating sides, actors and groups (who), the actions, flows and coordination mechanisms (how), and the value drivers, benefits and externalities (why), and the rules regulating the affiliation and interaction processes (governance). We also present and discuss 30 subtopics or management items that are associated with the five dimensions defined. We then apply the conceptual model to analyze a case in the climate change endeavor and to show how competitive and cooperative dynamics can be virtuously integrated to provide individual- and company-driven responses to a timely socioenvironmental issue. The article provides a new perspective on collaboration to enhance social development, and it offers theoretical and practitioner insights for a broad interdisciplinary audience including scholars, practitioners, business, and platform managers
Extreme nonlinear electrodynamics in metamaterials with very small linear dielectric permittivity
No full textWe consider a subwavelength periodic layered medium whose slabs are filled by arbitrary linear metamaterials and standard nonlinear Kerr media and show that the homogenized medium behaves as a Kerr medium whose parameters can assume values not available in standard materials. Exploiting such a parameter availability, we focus on the situation where the linear relative dielectric permittivity is very small, thus allowing the observation of the extreme nonlinear regime where the nonlinear polarization is comparable with or even greater than the linear part of the overall dielectric response. The behavior of the electromagnetic field in the extreme nonlinear regime is very peculiar and characterized by interesting features such as the transverse power flow reversing. In order to probe this regime, we consider a class of fields (transverse magnetic nonlinear guided waves) admitting full analytical description and show that these waves are allowed to propagate even in media with epsilon 0 since the nonlinear polarization produces a positive overall effective permittivity. The considered nonlinear waves exhibit, in addition to the mentioned features, a number of interesting properties like hyperfocusing induced by the phase difference between the field components
Muri, emarginazione, scuola
No full textUn bambino su due, a Milano, viene iscritto in una scuola che non è quella del proprio quartiere. Con intensità differente, il fenomeno si ripete in altre città italiane. A una prima lettura, questo processo è semplicemente legato al fatto che in Italia, da molti anni, vi è libertà di scelta della scuola per le famiglie. Tuttavia, la libertà di scelta, intrecciata con altre dimensioni, sta contribuendo a creare una situazione difficile da sostenere. Anche in un’epoca di ritiro dei sistemi di welfare, a livello sia nazionale che locale, la scuola, e in particolare la scuola pubblica, dovrebbe rimanere una delle principali agenzie di integrazione sociale, in grado di garantire percorsi di mobilità sociale e, più in generale, di crescita democratica per le future generazioni. Questo ruolo, indicato anche nella Costituzione, rischia di venire messo in discussione negli ultimi anni a causa dell’intensificarsi, anche in Italia, di un fenomeno ben noto nelle principali città del mondo (in contesi diversi tra di loro come Parigi, Londra, Amsterdam o Barcellona): la progressiva concentrazione di popolazioni sempre più simili e omogenee tra di loro all’interno degli stessi istituti scolastici, e quindi la relativa segregazione dei gruppi sociali gli uni rispetto agli altri
SAFEFOODNET : a specific support action of the EU : building a network for chemical food safety for the enlarging Europe
No full textTwo-peaked and flat-top perfect bright solitons in nonlinear metamaterials with epsilon near zero
No full text[Letter from Elia J. Hobbs to T. N. Carswell - February 24, 1954]
No full textA letter written to Mr. Carswell from Elia J. Hobbs, Garland, N. C., February 24, 1954. Hobbs explains who C. W. Presswood is, what he has asked and advises that she has included a "copy" of part of the letter from C. W. Presswood. Presswood requests to lease her place for five years describing the work needed to "get it fixed up where you could use it for some good" then states that he would like to buy the place. Hobbs resumes her correspondence to Carswell explaining what she thinks about the proposition
All-optical active plasmonic devices with memory and power switching functionalities based on epsilon near-zero nonlinear metamaterials
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