854 resultados para computing and communication technologies
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Background: Healthy diet and regular physical activity are powerful tools in reducing diabetes and cardiometabolic risk. Various international scientific and health organizations have advocated the use of new technologies to solve these problems. The PREDIRCAM project explores the contribution that a technological system could offer for the continuous monitoring of lifestyle habits and individualized treatment of obesity as well as cardiometabolic risk prevention. Methods: PREDIRCAM is a technological platform for patients and professionals designed to improve the effectiveness of lifestyle behavior modifications through the intensive use of the latest information and communication technologies. The platform consists of a web-based application providing communication interface with monitoring devices of physiological variables, application for monitoring dietary intake, ad hoc electronic medical records, different communication channels, and an intelligent notification system. A 2-week feasibility study was conducted in 15 volunteers to assess the viability of the platform. Results: The website received 244 visits (average time/session: 17 min 45 s). A total of 435 dietary intakes were recorded (average time for each intake registration, 4 min 42 s ± 2 min 30 s), 59 exercises were recorded in 20 heart rate monitor downloads, 43 topics were discussed through a forum, and 11 of the 15 volunteers expressed a favorable opinion toward the platform. Food intake recording was reported as the most laborious task. Ten of the volunteers considered long-term use of the platform to be feasible. Conclusions: The PREDIRCAM platform is technically ready for clinical evaluation. Training is required to use the platform and, in particular, for registration of dietary food intake.
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There is an increasing tendency of turning the current power grid, essentially unaware of variations in electricity demand and scattered energy sources, into something capable of bringing a degree of intelligence by using tools strongly related to information and communication technologies, thus turning into the so-called Smart Grid. In fact, it could be considered that the Smart Grid is an extensive smart system that spreads throughout any area where power is required, providing a significant optimization in energy generation, storage and consumption. However, the information that must be treated to accomplish these tasks is challenging both in terms of complexity (semantic features, distributed systems, suitable hardware) and quantity (consumption data, generation data, forecasting functionalities, service reporting), since the different energy beneficiaries are prone to be heterogeneous, as the nature of their own activities is. This paper presents a proposal on how to deal with these issues by using a semantic middleware architecture that integrates different components focused on specific tasks, and how it is used to handle information at every level and satisfy end user requests.
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This paper aims to outline a theory-based Content and Language Integrated Learning course and to establish the rationale for adopting a holistic approach to the teaching of languages in tertiary education. Our work focuses on the interdependence between Content and Language Integrated Learning (CLIL), and the use of Information and Communication Technologies (ICT), in particular regarding the learning of English within the framework of Telecommunications Engineering. The study first analyses the diverse components of the instructional approach and the extent to which this approach interrelates with technologies within the context of what we have defined as a holistic experience, since it also aims to develop a set of generic competences or transferable skills. Second, an example of a course project framed in this holistic approach is described in order to exemplify the specific actions suggested for learner autonomy and CLIL. The approach provides both an adequate framework as well as the conditions needed to carry out a lifelong learning experience within our context, a Spanish School of Engineering. In addition to specialized language and content, the approach integrates the learning of skills and capacities required by the new plans that have been established following the Bologna Declaration in 1999.
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Grid connected solar plants are a good opportunity for their use for research as a secondary objective. In countries were feed-in tariffs are still active, it is possible to include in the design of the solar plant elements for its use for research. In the case of the solar plant presented here both objectives are covered. The solar plant of this work is formed by PV modules of three different technologies: Multicrystalline, amorphous and CdTe. In one part of the solar plant, the three technologies are working at the same conditions, not only ambient conditions but also similar voltage and current input to the inverters. Both the commercial and the experimental parts of the solar plant have their own independent inverters with their meters but are finally connected to the same meter to inject. In this work we analyse the results for the first year of operation of the experimental solar plant. Productions of three different technologies in exactly the same conditions are compared and presented. According to the results, all the three technologies have conversion efficiencies dropping when the temperature increases. Amorphous module experiences the lesser reduction, whereas the multicrystalline module suffers the most.
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In the smart building control industry, creating a platform to integrate different communication protocols and ease the interaction between users and devices is becoming increasingly important. BATMP is a platform designed to achieve this goal. In this paper, the authors describe a novel mechanism for information exchange, which introduces a new concept, Parameter, and uses it as the common object among all the BATMP components: Gateway Manager, Technology Manager, Application Manager, Model Manager and Data Warehouse. Parameter is an object which represents a physical magnitude and contains the information about its presentation, available actions, access type, etc. Each component of BATMP has a copy of the parameters. In the Technology Manager, three drivers for different communication protocols, KNX, CoAP and Modbus, are implemented to convert devices into parameters. In the Gateway Manager, users can control the parameters directly or by defining a scenario. In the Application Manager, the applications can subscribe to parameters and decide the values of parameters by negotiating. Finally, a Negotiator is implemented in the Model Manager to notify other components about the changes taking place in any component. By applying this mechanism, BATMP ensures the simultaneous and concurrent communication among users, applications and devices.
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In this contribution a novel iterative bit- and power allocation (IBPA) approach has been developed when transmitting a given bit/s/Hz data rate over a correlated frequency non-selective (4× 4) Multiple-Input MultipleOutput (MIMO) channel. The iterative resources allocation algorithm developed in this investigation is aimed at the achievement of the minimum bit-error rate (BER) in a correlated MIMO communication system. In order to achieve this goal, the available bits are iteratively allocated in the MIMO active layers which present the minimum transmit power requirement per time slot.
Capacity Building through education, research and collaboration: AFRICA BUILD, an eHealth Case Study
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AFRICA BUILD (AB) is a Coordination Action project under the 7th European Framework Programme having the aim of improving the capacities for health research and education in Africa through Information and Communication Technologies (ICT). This project, started in 2012, has promoted health research, education and evidence-based practice in Africa through the creation of centers of excellence, by using ICT,?know-how?, eLearning and knowledge sharing, through Web-enabled virtual communities.
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La Biología bajo Demanda es un concepto novedoso, que está siendo abordado en la actualidad desde distintos enfoques, que serán expuestos en este documento. Dado este carácter innovador, se trata de un ámbito donde la investigación está muy presente en estos momentos. Las Tecnologías de la Información y Comunicación (TICs) llevan un tiempo aportando soluciones muy efectivas para algunos de los problemas a los que se enfrente actualmente la biología sintética. Una de estas soluciones son las plataformas de Cloud Computing, que aportan un entorno de trabajo escalable, flexible y seguro. Por ello, se ha empleado este tipo de tecnología en este trabajo fin de grado en el área de la biología sintética mediante el concepto de biología bajo demanda. Para desarrollar la plataforma de biología bajo demanda ha sido necesario analizar el estado de esta temática actualmente y sus avances. Además, ha sido estimable el estudio de las opiniones de los miembros del grupo de investigación. Todo ello ha permitido llevar a cabo una captura de requisitos adecuada para el ámbito de este proyecto. Se ha decidido que los servidores de aplicaciones web son la respuesta más adecuada a la hora de implementar las soluciones obtenidas para el desarrollo de la plataforma de biología bajo demanda. En concreto, por sus características, se ha decidido emplear JavaEE de Oracle. El modelo implementado emplea soluciones conocidas y fiables basadas en patrones de diseño software. Así, conseguimos cumplir con uno de los principales objetivos de este proyecto, que es lograr un sistema flexible y escalable. Por otro lado, debido a la incertidumbre que conlleva un área tan innovadora, se ha decidido optar por una metodología ágil. Esto supone un plan de trabajo centrado en reuniones semanales conjuntas con el director y los compañeros del grupo de trabajo, empleando prototipado rápido y programación extrema. Finalmente, se ha conseguido desarrollar una plataforma de biología bajo demanda que puede ser la base para el trabajo de los biólogos del ámbito de la biología sintética en un futuro próximo.---ABSTRACT---Biology on demand is a new concept, which is currently being addressed from different approaches, which will be presented in this document. Given this innovative character, it is an area where research is a main factor right now. Technologies of Information and Communication Technologies (ICTs) have provided very effective solutions to some of the problems that synthetic biology is currently facing. One of these solutions is cloud computing platforms, which provide an environment for scalable, flexible and secure work. Therefore, we have used this technology in this final project in the area of synthetic biology through the concept of biology on demand. To develop a biology-on-demand platform it has been necessary to analyze the state of art. The opinions of members of the research group have also been very influential. All this has allowed us to conduct a proper capture requirements for the scope of this project here developed. It was decided that web application servers are the best answer when it comes to implementing the solutions obtained for the development of biology-on-demand platform. In particular, by its main features, it was decided to use Oracle’s JavaEE. The implemented model uses known and reliable solutions based on software design patterns. So, we get to meet one of the main objectives of this project, which is to achieve a flexible and scalable system. On the other hand, due to the uncertainty involved in such an innovative area, it was appropriate to opt for an agile methodology. The work plan was focused on weekly meetings with the director and coworkers, using additive technology and extreme programming. Finally, this project has been successful in developing a biology-on-demand platform that can be the basis for the work of biologists in the field of synthetic biology in the near future.
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During the last three decades, FPGA technology has quickly evolved to become a major subject of research in computer and electrical engineering as it has been identified as a powerful alternative for creating highly efficient computing systems. FPGA devices offer substantial performance improvements when compared against traditional processing architectures via custom design and reconfiguration capabilities.
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A pesquisa considera a difusão de celulares e smartphones e as consequências deste fato em possibilidades para o ensino-aprendizagem. Aparatos de comunicação sempre estiveram ligados ao processo de ensino-aprendizagem. Entretanto, com o desenvolvimento mais intenso, nas últimas décadas, das Tecnologias de Informação e Comunicação (TIC), essa relação vem ganhando novos contornos. Surge a Internet, a evolução das máquinas computacionais e, recentemente, a explosão dos dispositivos móveis, fornecendo novos produtos e serviços convergentes. Nesse contexto, celulares e smartphones tem sido utilizados e recomendados para apoio e complemento do processo de ensino-aprendizagem: a chamada Aprendizagem Móvel. Esse ramo cresce devido à rápida expansão e barateamento dessas tecnologias na sociedade. Para verificar cientificamente essa relação foi realizada uma pesquisa de natureza qualitativa, do tipo exploratória, com dois projetos de Aprendizagem Móvel em andamento no Brasil, o Palma – Programa de Alfabetização na Língua Materna e o Escola Com Celular – ECC. Assim, a partir dos dados provenientes da pesquisa, identificamos alguns aspectos relacionados ao uso de celulares e smartphones para o processo de ensino-aprendizagem que contribuem na compreensão desse campo ainda em construção no Brasil. O uso desses dispositivos como suporte para processos de ensino-aprendizagem nos projetos estudados é delineado pelos aspectos tecnologia, dispositivo, público e contexto e novas tecnologias e Aprendizagem Móvel. O aspecto dispositivo desdobra-se em dimensões como disseminação, multifuncionalidade e acessibilidade que embasam os projetos, ainda favorece características apontadas como importantes para o processo de ensino-aprendizagem na atualidade, como mobilidade e portabilidade. Os projetos pesquisados demonstram potencial e metodologia adequada aos contextos para os quais foram criados e aplicados. Entretanto, a pesquisa indicou que ao mesmo tempo em que celulares e smartphones representam o ápice da convergência tecnológica e são considerados extremamente populares e acessíveis na sociedade contemporânea, com possibilidades concretas como nos projetos estudados, não conseguiram conquistar uma posição sólida como suporte para o ensino-aprendizagem. Tal indicação se deve, de acordo com o corpus, à carência de alguns fatores, como: fomento, as práticas se mostram extremamente dependentes da iniciativa pública ou privada para sua extensão e continuidade; sensibilização para o uso de tecnologias disponíveis, não consideram o aparelho dos próprios alunos e um planejamento que inclua, capacite e incentive o uso desses dispositivos. Além disso, a pesquisa também destaca a necessidade de uma visão crítica do uso e papel da tecnologia nesses processos.
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Neste trabalho fazemos uma revisão das novas tecnologias da informação e comunicação (TIC), definindo o que são Objetos de Aprendizagem (OA) e como eles têm sido utilizados no ensino de Física. Revisamos ainda o trabalho de Vigotski buscando indicações de sua teoria educacional para investigar a aplicabilidade de atividades didáticas em ensino de Física que lancem mão de OA no ensino médio. Elaboramos um instrumento de pesquisa voltado para professores do ensino médio para avaliar seu efetivo uso nas escolas públicas e privadas brasileiras e as limitações funcionais por eles identificadas ao utilizarem esses recursos computacionais. Com base na literatura, e sob uma ótica vigotskiana, aplicamos algumas atividades com OA pré-selecionados e avaliamos com outro instrumento de pesquisa a opinião dos alunos quanto ao seu uso para o ensino de Física. Nosso trabalho pôde corroborar a boa aceitação por parte dos alunos com relação ao seu uso, já divulgada na literatura e também por parte dos professores, mas mostrou que para além das limitações de uso dos OA, especialmente das simulações computacionais, destacadas na literatura e relacionadas às limitações cognitivas que elas podem trazer quando utilizadas de maneira indiscriminada, existem problemas mais profundos de natureza funcional que têm limitado a disseminação de seu uso efetivo pelo corpo docente.
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This article describes the adaptation and validation of the Distance Education Learning Environments Survey (DELES) for use in investigating the qualities found in distance and hybrid education psycho-social learning environments in Spain. As Europe moves toward post-secondary student mobility, equanimity in access to higher education, and more standardised degree programs across the European Higher Education Area (EHEA) the need for a high quality method for continually assessing the excellence of distance and hybrid learning environments has arisen. This study outlines how the English language DELES was adapted into the new Spanish-Distance Education Learning Environments Survey (S-DELES) for use with a Bachelor of Psychology and Criminology degree program offering both distance and hybrid education classes. We present the relationships between psycho-social learning environment perceptions and those of student affect. We also present the asynchronous aspects of the environment, scale means, and a comparison between the perceptions of distance education students and their hybrid education counterparts that inform the university about the baseline health of the information and communication technologies (ICT) environment within which the study was conducted.
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A general trend in the study of international retirement migration has been the increased attention paid to the social contacts and network connections of the migrants in both the destination and the origin areas. These studies have examined the extent to which migrants build social relationships with their neighbours and the host society while also maintaining social links with their countries of origin, addressing the central role that leisure travel plays in sustaining increasingly dispersed social networks and maintaining the social capital of these networks and of the individuals involved in them. Using a case study approach to examine British retirement migration to Spain, we explore the relevance of transnational social networks in the context of international retirement migration, particularly the intensity of bidirectional visiting friends and relatives (VFR) tourism flows and the migrants’ social contacts with friends and/or family back in their home country. Building on the concept of social capital and Putnam's distinction between bonding and bridging social capital, we propose a framework for the analysis of the migrants’ international social networks. The results of a study conducted based on a sample of 365 British retirees living in the coast of Alicante (Spain) show both the strength of the retirees’ international bonding social capital and the role of ‘VFR's travel and communication technologies in sustaining the migrants’ transnational social practices and, ultimately, their international bonding social capital. It also provides evidence for the reinforcing links between tourism-related mobility and amenity-seeking migration in later life.
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The word technology refers to the knowledge of techniques, skills, methods or processes used to produce goods, services or to reach specific objectives (research, business, etc.). The concept technology can also be used to make reference to devices, computers and factories.