Search results for "capacities"
showing 10 items of 13 documents
Towards the realization of a basic professional profile model for Science, Technology and Mathematics (STEM) teachers
2017
[EN] In this work it is both discussed and provided a framework of speci c competences that may serve asa guide for setting up an ongoing process in the professional development of Science, Technology andMathematics (STEM) teachers. The fundamentals of the TPACK model serve to base the theoreticalbackground of this scheme, to which we have incorporated an additional feature which means to considerthe linguistic (L) dimension, thus transforming it into the TPACLK model. The di erent detailed profes-sional STEM capacities have been classi ed into six main sections. The two rst points discussed establishthe STEM disciplinary and didactic capacities; the third section corresponds to the role of…
Polystyrene nanoparticles in the presence of (ethylene oxide)13(propylene oxide)30(ethylene oxide)13, N,N-dimethyloctylamine-N-oxide and their mixtur…
2008
Polystyrene nanoparticles were synthesized by emulsion polymerization of styrene. They were functionalized using the conventional surfactant N,N-dimethyloctylamine-N-oxide (ODAO), the tri-block copolymer (ethylene oxide)13(propylene oxide)30(ethylene oxide)13 (L64) and their mixtures. To this purpose, dynamic light scattering and calorimetric experiments were carried out and provided information consistent to each other. The L64 adsorption is Langmuir-type in the copolymer dilute regime and generates complex structures at larger concentrations. In the region where ODAO is in the unimeric state, the adsorption process is cooperative leading to hemi-micelle formation at the polystyrene nanopa…
La formazione iniziale degli insegnanti attraverso la pratica del microteaching.
2014
Le metodologie che fanno uso della videoregistrazione sono sempre più utilizzate nella formazione professionale dei futuri insegnanti. La professionalità del docente richiede oltre alle conoscenze teoriche o disciplinari, la capacità di mobilitare i saperi per organizzare risposte efficaci a problemi complessi e rilevanti e la capacità di riflettere sul proprio agire. È necessario che durante il percorso universitario l’insegnante in formazione acquisisca specifiche competenze e capacità autoriflessive. Questo contributo descrive una metodologia per la creazione di esperienze formative centrate sull’utilizzo della videoregistrazione e per la raccolta di dati sull’effetto del video sull’appr…
The Complementary effect of internal learning capacity and absorptive capacity on performance: the mediating role of innovation capacity
2011
Organisations are finding it increasingly more difficult to keep abreast with the pace of change. The continuous rise in the number of business opportunities and the increase in global competition require firms to combine internal and external learning processes to renew and reconfigure existing capabilities and knowledge to enable them to meet environmental demands and to innovate. This study aims to unravel the complex linkage between internal learning capacity and absorptive capacity and at exploring the joint effect of both knowledge generation processes on innovation capacity. This study also proposes innovation capacity as an antecedent of business performance. Using data from 952 ind…
The De Giorgi measure and an obstacle problem related to minimal surfaces in metric spaces
2010
Abstract We study the existence of a set with minimal perimeter that separates two disjoint sets in a metric measure space equipped with a doubling measure and supporting a Poincare inequality. A measure constructed by De Giorgi is used to state a relaxed problem, whose solution coincides with the solution to the original problem for measure theoretically thick sets. Moreover, we study properties of the De Giorgi measure on metric measure spaces and show that it is comparable to the Hausdorff measure of codimension one. We also explore the relationship between the De Giorgi measure and the variational capacity of order one. The theory of functions of bounded variation on metric spaces is us…
Génèse et évolution des compétences des élèves à la fin de l'école maternelle : éléments d'analyse à partir de données de panel et d'une expérimentat…
2012
We propose to study in this thesis, a key issue and relatively little discussed in the French research in educational sciences, it concerns the genesis of pupil learning and their evolution during the tuition. We mobilize a longitudinal data (Panel 1997) and the results of a musical experimentation in kindergarten to answer to these questions: How are structured the first acquisitions of pupils and how is it linked to the school context and socio-economic variables? How the cognitive abilities of students affect their academic performance? Are specific activities can improve academic skills through an increase in cognitive abilities? Implicative analysis conducted on panel data has revealed…
Quantum correlations in generalized spin star system
2006
The problem of detecting quantum signatures in the correlations formed in dynamical evolution of quantum bipartite systems receives a lot of attention in current literature. Generally speaking, the occurrence of correlations between two observables of a system does not necessarily reflect nonclassical behaviour. In this paper, the exact dynamics of a pair of uncoupled spins 1/2 interacting with a common spin 1/2 bath is investigated. Starting from a separable initial condition, the ability of the system to develop purely quantum correlations is brought to light. Physical interpretation of the concurrence function as well as a suggestion on how to measure it are given.
Heat capacities and volumes of suspensions in the presence of surfactants
2004
Abstract Density and heat capacity measurements of water–surfactant–silica ternary systems were carried out as functions of the silica and the surfactant concentrations at 298 K. From these properties, the apparent molar volume and heat capacity of the surfactant in a given water+silica mixture were evaluated. As well, the apparent specific volume and heat capacity of silica, at a given concentration, in the water+surfactant mixtures as functions of the surfactant concentration were calculated. Some surfactants (decyltrimethylammonium bromide, sodium octanoate, sodium decanoate, sodium dodecanoate, sodium decylsulfate, sodium perfluorooctanoate and N , N -dimethyldodecylamine- N -oxide) wer…
Adsorption of triblock copolymers and their homopolymers at laponite clay/solution interface. Role played by the copolymer nature
2009
The adsorption thermodynamics of copolymers, based on ethylene oxide (EO) and propylene oxide ( PO) units, at the laponite (RD) clay/liquid interface was determined at 298 K. The copolymer nature was tuned at molecular level by changing the hydrophilicity, the architecture and the molecular weight (Mw) keeping constant the EO/PO ratio. Polyethylene (PEGs) and polypropylene (PPGs) glycols with varying Mw and their mixture were also investigated to discriminate the role of the EO and the PO segments in the adsorption process. Enthalpies of transfer of RD, at fixed concentration, from water to the aqueous macromolecule solutions as functions of the macromolecule molality were determined. They …
Cultural Heritage and Development: a look at the 2030 Agenda and the role of heritage.
2020
En la Agenda 2030 difícilmente vamos a ubicar referencias a la cultura, y aún menos al patrimonio cultural. En su redacción, los Objetivos de Desarrollo Sostenible (ODS) dejan poco margen a la cultura y al patrimonio como medio humano para alcanzar esos objetivos. Este artículo analiza la presencia y ausencia del patrimonio en los ODS aprobados en 2015 y nos presenta cómo muchas de sus metas se lograrían más eficazmente si se tiene en consideración esta dimensión intrínsecamente humana de participar, generar y abastecerse de cultura, además de ver cómo, si nos centramos en el patrimonio desde un enfoque en derechos, identificaremos caminos que puedan más fácilmente favorecer la consecución …