Search results for "lcsh:T"
showing 10 items of 2832 documents
Un portátil por estudiante como argumento de disputa política en la sociedad digital
2009
La decisión gubernamental de dotar de un ordenador a cada alumno, en el marco del proyecto Escuela 2.0, es el hecho que motiva este trabajo. Con el mismo damos continuidad a nuestra línea de estudio y reflexión sobre las políticas que tutelan la incorporación progresiva de la institución escolar a la sociedad de la información. En esta ocasión centramos el análisis sobre los discursos con los que se justifican tales iniciativas en el contexto de los planes gubernamentales para el estímulo de la economía. La citada dotación debe encajarse además con el resto de planes que sobre el particular promueven distintos ministerios, aparte de los que patrocinan los gobiernos autónomos en su ámbito co…
Profesorado : revista de curriculum y formación del profesorado
2014
El presente trabajo se inscribe en el marco de una investigación de ámbito nacional sobre el Programa Escuela 2.0. Centramos la atención en el análisis de la implementación, en la Comunidad Valenciana, del programa Centros Educativos Inteligentes (CEI). Es la alternativa al Escuela 2.0 y la idea central es facilitar el acceso, desde cualquier lugar del centro, a las TIC como recurso de apoyo en el proceso de enseñanza y aprendizaje. En coherencia con el proyecto CEI, tomamos metodológicamente al centro escolar como unidad de análisis en el trabajo de campo. El cuestionario se pasó a los 18 centros implicados y en 4 de ellos realizamos el estudio de casos: dos de educación Infantil/Primaria …
Educatio siglo XXI : revista de la Facultad de Educación
2018
El presente estudio describe la competencia digital en el tratamiento de contenidos de Ciencias Sociales de futuros maestros. Para ello se recurre al TPACK (Technological Pedagogical Content Knowledge) y se analizan los resultados de un cuestionario sobre las concepciones al respecto de 153 estudiantes del Grado de Magisterio en Educación Primaria. Las conclusiones confirman un mayor autoconocimiento de contenidos pedagógicos o tecnológicos, frente a los disciplinares, lo que imposibilita, siguiendo la aplicación del modelo, el desarrollo de una competencia digital docente efectiva para el desarrollo de una didáctica crítica en Ciencias Sociales. The present study describes the use of digit…
Edutec : revista electrónica de tecnología educativa
2013
Resumen tomado de la publicación La aparición de pizarras digitales interactivas en las aulas y la posibilidad de asociarlas a las TIC ha permitido investigar nuevos cauces de comunicación entre el profesorado y el alumnado. Las pizarras digitales a parte de utilizar elementos multimedia: imágenes, sonidos, vídeos, etc. también pueden asociarse a las TIC para compartir de manera automática con el alumnado todos los contenidos que se muestran en ellas. Tomando como base esta idea hemos creado la aplicación web “Pizarra digital en casa” URL: http://hortamajor.edu.gva.es/pizarraencasa. ESP
Thermo-Mechanical Behaviour of Flax-Fibre Reinforced Epoxy Laminates for Industrial Applications
2015
The present work describes the experimental mechanical characterisation of a natural flax fibre reinforced epoxy polymer composite. A commercial plain woven quasi-unidirectional flax fabric with spun-twisted yarns is employed in particular, as well as unidirectional composite panels manufactured with three techniques: hand-lay-up, vacuum bagging and resin infusion. The stiffness and strength behaviours are investigated under both monotonic and low-cycle fatigue loadings. The analysed material has, in particular, shown a typical bilinear behaviour under pure traction, with a knee yield point occurring at a rather low stress value, after which the material tensile stiffness is significantly r…
Production and Properties of Starch Citrates—Current Research
2020
Starch modification by chemical reaction is widely used to improve the properties of native starch. Modified by citric acid, starch is characterized by specific properties resulting from the presence of citrate residues and as a result of cross-linking starch. The chemicals used for preparing starch citrates are safe for human health and the natural environment compared to the harsh chemicals used for conventional modifications. Starch citrates are traditionally produced by heating starch–citric acid mixtures in semi-dry conditions or by a heat moisture treatment. The conditions of the modification process (roasting temperature, heating time, citric acid dose) and the botanic source or geno…
The Formalisation of Water Use and Conditional Ownership in Colca Valley, Peru
2019
This article discusses the production and negotiation of water ownership among peasant farmers in the Majes-Colca watershed in southern Peru, where the public water administration initiated a process of formalising user rights for potable water in 2011. While a large-scale irrigation project channels water from the headwaters to export-oriented agriculture in the desert, the supply of water is getting scarcer because of climate change. The Peruvian water resources law from 2009 acknowledges water as public property, yet emphasises its economic value and encourages private investment. The farmers in the highlands see water not only as a resource but also as a lifegiving force provided by the…
Pressure-Dependent Tuning of Photoluminescence and Size Distribution of Carbon Nanodots for Theranostic Anticancer Applications
2020
Carbon nanodots (CDs) have recently attracted attention in the field of nanomedicine because of the biocompatibility, cost-effective nature, high specific surface, good near infrared (NIR) photothermal conversion into heat and tunable fluorescence properties, which have paved the way toward incorporating use of CDs into innovative anticancer theranostic platforms. However, a reliable synthesis of CDs with established and controlled physiochemical proprieties is precluded owing to the lack of full manipulation of thermodynamic parameters during the synthesis, thus limiting their use in real world medical applications. Herein, we developed a robust solvothermal protocol which allow fine contr…
High Frequency Data Acquisition System for Modelling the Impact of Visitors on the Thermo-Hygrometric Conditions of Archaeological Sites: A Casa di D…
2018
[EN] The characterization of the microclimatic conditions is fundamental for the preventive conservation of archaeological sites. In this context, the identification of the factors that influence the thermo-hygrometric equilibrium is key to determine the causes of cultural heritage deterioration. In this work, a characterization of the thermo-hygrometric conditions of Casa di Diana (Ostia Antica, Italy) is carried out analyzing the data of temperature and relative humidity recorded by a system of sensors with high monitoring frequency. Sensors are installed in parallel, calibrated and synchronized with a microcontroller. A data set of 793,620 data, arranged in a matrix with 66,135 rows and …
Interactive Tools for the Preservation, Dissemination and Study of Silk Heritage—An Introduction to the SILKNOW Project
2018
Silk was a major factor for progress in Europe, mostly along the Western Silk Road’s network of production and market centers. The silk trade also allowed for the exchange of ideas and innovations, having impacts at economic, technical, functional, cultural and symbolic levels. However, silk has today become a seriously endangered heritage. Although many European specialized museums are devoted to its preservation, they usually lack the size and resources to take advantage of state-of-the-art digital technologies. The aim of this paper is twofold; firstly, we introduce SILKNOW, an interdisciplinary project that has been recently funded by the H2020 Programme of the European Union in order t…