910 resultados para Information And Communications Technology


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La répartition des taux de prévalence des infections transmissibles sexuellement et par le sang (ITSS) et du VIH/SIDA au Canada présente de grandes inégalités entre les différents groupes socioculturels. Les Autochtones font partie des populations qui en payent le plus lourd tribut. Par rapport à cette situation, le plan directeur 2007-2017 de la commission de la santé et des services sociaux des Premières Nations du Québec et du Labrador (CSSSPNQL) identifie clairement le VIH/SIDA comme une problématique prioritaire de santé. La stratégie autochtone sur le VIH/SIDA estime que pour être efficaces, les interventions visant la prévention du VIH/SIDA doivent cibler divers groupes, au nombre desquels la jeunesse autochtone est une cible particulière. En ce sens, la familiarité des jeunes générations avec la technologie positionne l’utilisation des technologies de l’information et de la communication (TIC) comme une avenue fortement prometteuse dans le domaine de la prévention du VIH/SIDA chez les adolescents et jeunes adultes. Nous avons réalisé une synthèse des connaissances dans ce domaine novateur suivant une méthodologie suggérée par la Collaboration Cochrane dans le but de documenter l’efficacité et les facteurs d’adoption des interventions utilisant les TIC pour la prévention des ITSS/VIH/SIDA et la promotion de la santé sexuelle et reproductive auprès des adolescents et jeunes adultes. Les résultats de cette revue systématique ont permis d’élaborer et de mener, en partenariat avec la CSSSPNQL, un projet de recherche visant à évaluer la faisabilité de telles interventions au sein des adolescents et jeunes adultes de communautés des Premières Nations (PN) du Québec. En complément à cette étude de faisabilité et dans le but de formuler des recommandations en vue de la conception d’interventions utilisant les TIC et fondées autant sur les données probantes que sur les réalités des jeunes des PN, nous avons entrepris une dernière étude visant à identifier les facteurs sous-jacents du port du condom chez les 13-18 ans de communautés des Premières Nations du Québec. Nous avons discuté, dans la présente thèse, les résultats de ces études ainsi que divers enjeux du partenariat de recherche avec les parties prenantes des PN ayant participé à notre projet. Les implications pratiques de nos résultats, en matière de recherche et d’intervention, sont à discuter avec notre principale partenaire, la CSSSPNQL, afin d’en optimiser les retombées pour les populations des PN.

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This is a long-term study of the use of information and communication technologies by 30 older adults (ages 70–97) living in a large retirement community. The study spanned the years of 1996 to 2008, during which time the research participants grappled with the challenges of computer use while aging 12 years. The researcher, herself a ‘mature learner,’ used a qualitative research design which included observations and open-ended interviews. Using a strategy of “intermittent immersion,” she spent an average of two weeks per visit on site and participated in the lives of the research population in numerous ways, including service as their computer tutor. With e-mail and telephone contact, she was able to continue her interactions with participants throughout the 12-year period. A long-term perspective afforded the view of the evolution, devolution or cessation of the technology use by these older adults, and this process is chronicled in detail through five individual “profiles.” Three research questions dominated the inquiry: What function do computers serve in the lives of older adults? Does computer use foster or interfere with social ties? Is social support necessary for success in the face of challenging learning tasks? In answer to the first question, it became clear that computers were valued as a symbol of competence and intelligence. Some individuals brought their computers with them when transferred to the single-room residences of assisted living or nursing care facilities. Even when use had ceased, their computers were displayed to signal that their owners were or had once been keeping up to date. In answer to the second question, computer owners socialized around computing use (with in-person family members or friends) more than, or as much as, they socialized through their computers in the digital realm of the Internet. And in answer to the third question, while the existence of social support did facilitate computer exploration, more important was the social support network generated and developed among fellow computer users.

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Multimorbidity patients pose severe challenges to which information and communication technology (ICT) can help patients and doctors to answer with effective and efficient care.

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This paper examines the use of on-line discussion as a medium for learning in a pre-service teacher education program. As part of an Education Studies course student teachers engaged in a discussion of issues related to technology and equity in schools. The design of the task and the subsequent analysis of the on-line text were part of a research project investigating whether and how communications technology can be used to integrate and extend the learning of teacher education students. The main argument developed in the paper is that through the on-line activity distinctive sets of writing practices were created. These practices enabled students to make connections between the often disparate parts of teacher education programs-theory and practice, campus and school, research and experience. (C) 2002 Elsevier Science Ltd. All rights reserved.

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A divulgação quase instantânea da informação proporcionada pelas tecnologias de informação e comunicação banalizou praticamente o conceito de distância. Seguiu-se inevitavelmente a adaptação dos meios de comunicação, pelo que a informação pode chegar a todos nós de formas variadas como a imprensa escrita, falada e on line. Os livros, os jornais, a internet e os outros meios de comunicação encontram-se repletos de dados, de tabelas e gráficos, os quais, independentemente do meio utilizado, trazem a informação até nós, numa linguagem estatística que propicia objetividade e simplificação da mesma, para quem a sabe interpretar. Essa informação pode ter origem em todas as áreas da ciência e é passível de ser utilizada em vários contextos: demografia, pesquisas eleitorais, estudos financeiros, índices de desemprego, controlo de qualidade, custo de vida, tendências de mercado em relação a produtos e marcas, evolução de audiências, indústria, recursos humanos, saúde, pesquisas de mercado e de opinião, etc. Isso justifica a necessidade de formação estatística para todos, no sentido de promover uma participação ativa, crítica e esclarecida por parte de qualquer cidadão em relação a resultados que lhe são apresentados (Fernandes, Sousa e Ribeiro, 2004). O reforço da estatística nos ensinos básico e secundário foi por isso inevitável, e para confirmá-lo basta compararem-se os programas das décadas de 80 e de 90 da disciplina de matemática em todos os anos de escolaridade. O Curriculum and Evaluation Standards for School Mathematics, publicadas em 1989 pelo NCTM veio introduzir normas relativas à estatística e às probabilidades para todos os níveis de ensino incentivando bastante a utilização de meios e métodos inovadores. A estatística é área da matemática que mais se tem desenvolvido nos últimos 30 anos. [introdução]

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O presente relatório foi desenvolvido no âmbito de Prática Pedagógica Supervisionada no 1ºCiclo do Ensino Básico, Unidade Curricular do Mestrado em Educação Pré-Escolar e Ensino do 1ºCiclo do Ensino Básico, na Escola Superior de Educação do Instituto Politécnico do Porto. Assim sendo, diz respeito à intervenção da mestranda numa turma de 4ºano do 1ºCiclo do Ensino Básico, numa instituição de ensino público, na zona metropolitana do Porto. A Unidade Curricular em questão, de cariz teórico-prático, permitiu mobilizar pressupostos teóricos fundamentais para o desenvolvimento da prática pedagógica, dando a conhecer as competências desejáveis do profissional de ensino. A metodologia utilizada ao longo do percurso da mestranda assentou na vertente da investigação e ação, pelo que envolve um conjunto de etapas que permitem a melhoria das práticas e, consequentemente, do desenvolvimento profissional e da aprendizagem dos alunos. O relatório espelha todo o processo formativo, destacando conceções teóricas e legais e o contexto da prática, evidenciando, de forma crítica e reflexiva, momentos do estágio que marcaram o desenvolvimento profissional e pessoal da futura professora. Destaca-se a valorização do aluno como indivíduo único, repleto de características que o caracterizam, bem como do processo de ensino-aprendizagem, pelo que se utilizaram metodologias socioconstrutivistas e recursos diversificados com vista à aprendizagem de sucesso. Deste modo, realça-se que este mestrado contribuiu para o desenvolvimento de competências essenciais no que concerne à profissão docente, sendo que a vivência de situações concretas permitiram a construção fundamentada do pensamento crítico e de um conjunto de saberes científicos, pedagógicos e didáticos da mestranda.

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The interest in using information to improve the quality of living in large urban areas and its governance efficiency has been around for decades. Nevertheless, the improvements in Information and Communications Technology has sparked a new dynamic in academic research, usually under the umbrella term of Smart Cities. This concept of Smart City can probably be translated, in a simplified version, into cities that are lived, managed and developed in an information-saturated environment. While it makes perfect sense and we can easily foresee the benefits of such a concept, presently there are still several significant challenges that need to be tackled before we can materialize this vision. In this work we aim at providing a small contribution in this direction, which maximizes the relevancy of the available information resources. One of the most detailed and geographically relevant information resource available, for the study of cities, is the census, more specifically the data available at block level (Subsecção Estatística). In this work, we use Self-Organizing Maps (SOM) and the variant Geo-SOM to explore the block level data from the Portuguese census of Lisbon city, for the years of 2001 and 2011. We focus on gauging change, proposing ways that allow the comparison of the two time periods, which have two different underlying geographical bases. We proceed with the analysis of the data using different SOM variants, aiming at producing a two-fold portrait: one, of the evolution of Lisbon during the first decade of the XXI century, another, of how the census dataset and SOM’s can be used to produce an informational framework for the study of cities.

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Aplicació professional i d'àmbit empresarial que té com a finalitat la gestió d'incidències i sol·licituds informàtiques referents a l'àmbit tecnològic, per part d'un departament de Tecnologies de la Informació i de la Comunicació.

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We examine a multiple-access communication system in which multiuser detection is performed without knowledge of the number of active interferers. Using a statistical-physics approach, we compute the single-user channel capacity and spectral efficiency in the large-system limit.

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Avui en dia les Tecnologies de la Informació i la Comunicació (TIC) s’han convertit en eines d’ús quotidià i alhora invisibles en diversos àmbits de la societat i les escoles no n’estan al marge. No cal ensenyar a fer servir eines tecnològiques, sinó que cal entendre-les com un suport. Recerques recents han demostrat que un bon ús d’aquestes potencien un bon ensenyament i aprenentatge. Al mateix temps, es potencien mètodes globalitzats a les aules que permeten construir coneixements significatius a partir de situacions i problemes. Per això, l’objectiu principal d’aquest estudi consisteix en investigar quins canvis s’observen en la motivació de l’alumnat i quins canvis succeeixen a l’aula en general quan s’usen les TIC com a suport en un mètode globalitzat anomenat la recerca del medi. Per tal de resoldre aquest problema d’investigació es recullen diverses dades d’una intervenció didàctica basada en aquest mètode que es porta a terme en dos cursos de cinquè de Primària. Tal com s’observarà, l’ús de les noves tecnologies en un mètode que permet apropar els infants a la realitat n’augmenta la motivació i promou canvis a l’aula que ajuden i faciliten la tasca del docent i alhora afavoreix un aprenentatge significatiu.

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Tieto- ja viestintätekniikan kehittyminen on muuttanut työn luonnetta monella tavalla ja työelämän jatkuva muutos ja joustavuuteen pyrkiminen edellyttävät uusien tietojen ja taitojen hankkimista. Verkko-opetus, verkko-opiskelu ja verkko-oppiminen näyttävät tarjoavat uusia ulottuvuuksia henkilöstökoulutukseen. Tämän diplomityön tarkoituksena on tutkia voidaanko digitaalisella osaamisen kehittämisellä tukea yrityksen henkilöstökoulutusta ja henkilöstöä opiskelussa ja oppimisessa? Osaaminen on strateginen kysymys ja sen kehittämisessä pyritään yrityksissä aiempaa pitkäjänteisempään ja kokonaisvaltaisempaan toimintatapaan. Digitaalinen osaamisen kehittäminen oikein toteutettuna näyttää vahvistavan henkilöstön osaamistasoa. Tekniset apuvälineet eivät ehkä koskaan tule korvaamaan kokemusta ja työssä oppimista, silti ne näyttävät helpottavat tiedonkulkua ja ovat apuna osaamisen kehittämisessä. Kuvitelma verkko-opintojen helppoudesta, täysin ajasta ja paikasta riippumattomana, sekä itsenäisestä opiskelusta on harhaa. Verkkokoulutuksen suurena haasteena on sen soveltaminen järkevällä tavalla organisaation toimintakulttuuriin ja toimintatapoihin. Ajanoloon verkko-opiskelu saattaa muuttua osaksi työtä, mutta asenteiden muokkaamisessa on vielä paljon tekemistä. Yritysten johdon tulee näyttää tietä ja toimia esimerkkinä uusien toimintatapojen käyttöönotossa.

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In Tanzania computer knowledge is vital to supplement the pace fast growing economic and development activities, which demands high and reliable level of expertise in com- puting field. In 2006, a research carried out at Tumaini University with purpose to design and implement a contextualized curriculum that can supplement for such needs hence facilitate development in Tanzanian context. A contextualized curriculum took advantage of six principles namely curriculum contex- tualization, projects, practical, interdisciplinary orientation, international recognition and continuous research for the program’s formative and development. Implementation of the curriculum followed the CATI (Contextualize, Apply, Transfer, and Import) model with emphasis on students to identify societal expectations at the early stage in learning process, in which case the graduates will potentially cater for societal expertise needs on ICT. This study adopts an emergent exploratory cross-section research design, while employ- ing a qualitative approach. This study was conducted at Tumaini University in Iringa where by purposeful sampling was used to obtain participants such as students, teach- ers, administrators and employers who participated in several focus group discussions, in-depth interviews and participant observation. The study reveals that six principles are satisfactorily met,despite of bottlenecks such as incompatibility in pedagogical thinking and technology availability for e-learning, learning attitudes, insufficient experts with actual skills and experience,in academic field among the others. The study recommends that iterative longitudinal study should be car- ried out to design for proper intervention in response to these problems which will help in improving and stabilize the curriculum.

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Tämä kandidaatintyö käsittelee puolijohdeteollisuusyritysten Intelin, Toshiban ja Samsungin patenttipolitiikkaa 1990-luvun alusta lähtien. Työn tarkoituksena on antaa vastauksia siihen, miksi patentointiaktiivisuudet (patenttiaineiston määrät) vaihtelevat niin suuresti yrityksestä toiseen saman alan sisällä. Yrityksiä tarkastellaan erityisesti kotimaidensa suhteen. Patentointiaktiivisuuden analyysissä käytetään IPC-luokittain jaoteltua patenttiaineistoa sekä patentointiin liittyviä artikkeleita ja kirjallisuutta. Yritysten sijainti ja paikallinen yrityskulttuuri vaikuttavat merkittävästi yritysten patenttipolitiikkaan. Vertailuyrityksillä on omat arvot ja toimintatavat, joilla patentointiin liittyviä asioita hoidetaan. Puolijohdeteollisuudessa ja yleisesti informaatioteknologiateollisuudessa, joissa käytetään paljon patentointia, on tärkeää, että maan johto suhtautuu positiivisesti immateriaalioikeuksiin. Kyseisen alan merkitys maiden hyvinvoinnille kasvaa koko ajan. Empiria-aineiston mukaan Intelin patentit ovat eteen- ja taaksepäin viittausten perusteella laadukkaimpia. 1990-luvulla Etelä-Korea panosti suuresti immateriaalioikeuksien kehittämiseen, mikä näkyy Samsungin patenttimäärän nousuna. Samsungilla on vertailuyrityksistä eniten patentteja, mutta ne ovat heikkolaatuisimpia. Toshiban patentit eivät saavuta määrällisesti Intelin taakse- ja eteenpäinviittauksia. Laadullisesti Toshiban patentit ovat kuitenkin parempia kuin Samsungin patentit. Kaikkiaan patentointi on lisääntynyt 1990-luvulla lähtien muun muassa parantuneen patenttisuojan ja helpottuneiden hakuprosessien ansiosta. Aasiassa on yleisempää käyttää strategista patentointia, muun muassa portfolion maksimointia. Yhdysvalloissa suhtaudutaan patentointiin enemmän taloudelliselta kannalta, kun taas puolestaan Aasiassa t&k-toiminta on pitkäjänteisempää.

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The growing population in cities increases the energy demand and affects the environment by increasing carbon emissions. Information and communications technology solutions which enable energy optimization are needed to address this growing energy demand in cities and to reduce carbon emissions. District heating systems optimize the energy production by reusing waste energy with combined heat and power plants. Forecasting the heat load demand in residential buildings assists in optimizing energy production and consumption in a district heating system. However, the presence of a large number of factors such as weather forecast, district heating operational parameters and user behavioural parameters, make heat load forecasting a challenging task. This thesis proposes a probabilistic machine learning model using a Naive Bayes classifier, to forecast the hourly heat load demand for three residential buildings in the city of Skellefteå, Sweden over a period of winter and spring seasons. The district heating data collected from the sensors equipped at the residential buildings in Skellefteå, is utilized to build the Bayesian network to forecast the heat load demand for horizons of 1, 2, 3, 6 and 24 hours. The proposed model is validated by using four cases to study the influence of various parameters on the heat load forecast by carrying out trace driven analysis in Weka and GeNIe. Results show that current heat load consumption and outdoor temperature forecast are the two parameters with most influence on the heat load forecast. The proposed model achieves average accuracies of 81.23 % and 76.74 % for a forecast horizon of 1 hour in the three buildings for winter and spring seasons respectively. The model also achieves an average accuracy of 77.97 % for three buildings across both seasons for the forecast horizon of 1 hour by utilizing only 10 % of the training data. The results indicate that even a simple model like Naive Bayes classifier can forecast the heat load demand by utilizing less training data.