Search results for "Tale"
showing 10 items of 6428 documents
Exploración de las características del razonamiento visual en alumnos con talento matemático
2013
La investigación que se presenta en esta memoria tiene por finalidad el estudio de los procesos de visualización de alumnos con talento matemático, en particular en el contexto del aprendizaje de algunos conceptos de Geometría. La elección del tema viene motivada por la necesidad de atender de manera diferenciada a los alumnos con talento matemático. Los estudiantes con talento matemático requieren un tipo de atención individualizada. En la actualidad, su consideración por el sistema educativo como alumnos con necesidades educativas especiales lleva a diseñar metodologías y usar unos recursos particulares que den respuesta a sus características propias. Es importante resaltar que una falta …
Habilitats de visualització manifestades per alumnes de primària quan resolen activitats de geometria 3D i la seua relació amb el talent matemàtic
2016
Aquesta investigació ha estat motivada per la importància de la visualització per comprendre millor el món que ens envolta, fet que contrasta amb la realitat a l’escola, on no se li dóna la consideració necessària. D’altra banda, també ens han preocupat els alumnes amb talent matemàtic, ja que reben una atenció molt deficient en les aules ordinàries. En aquest sentit, aquesta investigació té per objectius generals oferir un material educatiu caracteritzat per l’ús de diferents materials manipulatius que ajuden a l’alumnat amb diferents graus de talent matemàtic a manifestar les seues habilitats de visualització (Del Grande, 1990) i característiques de talent matemàtic. Els objectius concret…
Understanding of Mendelian Inheritance Model after conventional teaching methods in Secondary Education students
2015
Mostrar que una nueva propuesta de enseñanza produce mejores actitudes y aprendizajes en los alumnos requiere disponer de un análisis de lo que se hace y se consigue con la enseñanza habitual. Para realizar dicho análisis se ha efectuado un estudio histórico y epistemológico de la evolución de las ideas en genética clásica, identificando los problemas que están en su origen, las ideas que permitieron avanzar y los obstáculos que hubo que superar. Como resultado de dicho estudio se han seleccionado un conjunto de indicadores de aprendizaje que deberían manifestarse en aquellas personas que hubieran comprendido los aspectos esenciales del modelo de herencia mendeliana, que se imparte en 4º de…
Measurement of the inelastic proton-proton cross-section at √s = 7 TeV with the ATLAS detector
2011
The dependence of the rate of proton–proton interactions on the centre-of-mass collision energy, √s, is of fundamental importance for both hadron collider physics and particle astrophysics. The dependence cannot yet be calculated from first principles; therefore, experimental measurements are needed. Here we present the first measurement of the inelastic proton–proton interaction cross-section at a centre-of-mass energy, √s, of 7 TeV using the ATLAS detector at the Large Hadron Collider. Events are selected by requiring hits on scintillation counters mounted in the forward region of the detector. An inelastic cross-section of 60.3±2.1 mb is measured for ξ>5×10[superscript −6], where ξ is ca…
An experimental investigation on the poor hydrogen sorption properties of nano-structured LaNi5 prepared by ball-milling
2011
Abstract Nano-structured LaNi5 hydrogen storage materials prepared by ball-milling is analysed using differential scanning calorimetry (DSC) and x-ray photoelectron spectroscopy (XPS). DSC results indicate a partial elimination of defects at 500 °C in a more efficient way for the short-time ball-milled powders compared to the long-time ball-milled ones. XPS results show almost no change in the core-level electronic structure for La and Ni of LaNi5 in the bulk and the nano-structured forms, but gives an indication that the self-restoring mechanism of the active surface observed in the bulk sample (Siegmann et al. Phys. Rev. Lett. 40, 972) may not be occurring in the nano-powders. Results fro…
Diffusion process of molecular oxygen in silica nanoparticles
2012
The environmental product declaration EPD with a particular application to a solar thermal collector
2003
The principles of sustainable development and of Integrated Product Policy are applied in new voluntary regulations, which have been internationally agree. The aim is to grant transparency of environmental information and to promote the diffusion of environmentally friendly products. A new tool under study is the Environmental Product Declaration (EPD), a technical paper annexed to products that synthesises their energy and environmental performances. This paper points out the reasons for developing EPD for the energy sector, and puts special focus upon renewable energy systems, products whose environmental performances are often not clearly defined. We describe how results of a LCA upon a …
Il dialogo tra Capability Approach e la form-azione delle competenze digitali
2020
Il presente contributo si focalizza su una sfida educativa impellente della contemporaneità: la form-azione della cittadinanza digitale. A partire dal Quadro di riferimento Europeo per le competenze digitali dei cittadini, viene svolta una riflessione basata sull’interconnessione tra il Capability approach e le competenze digitali. Il Capability Approach, sviluppando un orizzonte di senso eticoeconomico-politico basato su: “functioning”, capability” e “agency”, completa e orienta il framework teorico-metodologico dettato dai riferimenti normativi europei sullo sviluppo delle digital skills. L’indagine sulle digital skills può essere un’opportunità per orientare l’azione formativa, in riferi…
Performance of a new real time digital pulse processing system for X-ray and gamma ray semiconductor detectors
2014
New generation spectroscopy systems have advanced towards digital pulse processing (DPP) approaches. DPP systems, based on direct digitizing and processing of detector signals, have recently been favoured over analog pulse processing electronics, ensuring better performance. In this work, we present the performance of a new real time DPP system for X-ray and gamma ray semiconductor detectors. The system is based on a commercial digitizer equipped with a custom DPP firmware, developed by our group, for on-line pulse shape and height analysis. X-ray and gamma ray spectra measurements with cadmium telluride (CdTe) and germanium (Ge) detectors, coupled to resistive feedback preamplifiers, will …
Towards a pragmatics of weblogs
2007
The weblog has emerged as one of the most dynamic means of Internet communication, in which users upload whatever piece of information they consider might arouse other users’ attention. Many articles and books have already addressed this new communicative phenomenon, but so far the weblog has not been addressed in purely cognitive-pragmatic terms. This article provides a first relevance-theoretic pragmatic analysis of the discourse of weblogs and their communicative qualities and limitations. El weblog ha surgido como una de las formas más dinámicas de comunicación, en la cual los usuarios de Internet “cuelgan” cualquier información que consideran que puede atraer la atención de otros usuar…