1000 resultados para Science, Medieval


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Dissertação apresentada para cumprimento dos requisitos necessários à obtenção do grau de Mestre em História Medieval

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Biosensors have opened new horizons in biomedical analysis, by ensuring increased assay speed and flexibility, and allowing point-of-care applications, multi-target analyses, automation and reduced costs of testing. This has been a result of many studies merging nanotechnology with biochemistry over the years, thereby enabling the creation of more suitable environments to biological receptors and their substitution by synthetic analogue materials. Sol-gel chemistry, among other materials, is deeply involved in this process. Sol-gel processing allows the immobilization of organic molecules, biomacromolecules and cells maintaining their properties and activities, permitting their integration into different transduction devices, of electrochemical or optical nature, for single or multiple analyses. Sol-gel also allows to the production of synthetic materials mimicking the activity of natural receptors, while bringing advantages, mostly in terms of cost and stability. Moreover, the biocompatibility of sol-gel materials structures of biological nature allowed the use of these materials in emerging in vivo applications. In this chapter, biosensors for biomedical applications based on sol-gel derived composites are presented, compared and described, along with current emerging applications in vivo, concerning drug delivery or biomaterials. Sol-gel materials are shown as a promising tool for current, emerging and future medical applications. - See more at: http://www.eurekaselect.com/127191/article#sthash.iPqqyhox.dpuf

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Tese de doutoramento em História da Idade Média

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Ciudades y villas portuarias del Atlântico en La Edad Media, Nájera. Encuentros Internacionales del Medievo-Actas, org. Beatriz Arízaga Bolumburu e Jesús Angel Solorzáno Telechea

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Dissertação para obtenção do Grau de Mestre em Engenharia Física

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Massive Open Online Courses (MOOC) are gaining prominence in transversal teaching-learning strategies. However, there are many issues still debated, namely assessment, recognized largely as a cornerstone in Education. The large number of students involved requires a redefinition of strategies that often use approaches based on tasks or challenging projects. In these conditions and due to this approach, assessment is made through peer-reviewed assignments and quizzes online. The peer-reviewed assignments are often based upon sample answers or topics, which guide the student in the task of evaluating peers. This chapter analyzes the grading and evaluation in MOOCs, especially in science and engineering courses, within the context of education and grading methodologies and discusses possible perspectives to pursue grading quality in massive e-learning courses.

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The inter-disciplinarity of information systems, applied discipline and activity of design, and the study from different paradigms perspectives explains the diversity of problems addressed. The context is broad and includes important issues beyond technology, as the application, use, effectiveness, efficiency and their organizational and social impacts. In design science, the research interest is in contributing to the improvement of the processes of the design activity itself. The relevance of research in design science is associated with the result obtained for the improvement of living conditions in organizational, inter-organizational and Society contexts. In the research whose results are artifacts, the adoption of design research as a process of research is crucial to ensure discipline, rigor and transparency. Based on a literature review, this paper clarifies the terms of design science and design research. This is the main motivation for presenting this paper, determinant for the phase in research in technologies and information systems which are the three research projects presented. As a result the three projects are discussed in relation to the concepts of design science and design research.

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Dissertação para obtencão do grau de Mestrado em Arte e Ciência do Vidro

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O tema destes Encontros Literdisciplinares da FCSH-UNL - A Ciência na Universidade - sugere que seja feito o enquadramento, embora muito resumidamente, da investigação que vou apresentar na unidade de investigação em que vem sendo desenvolvida - o Centro de Lingüística da Universidade Nova de Lisboa - CLUNL. A entrada da Lingüística na Universidade Nova tem uma história quase tão longa como a própria instituição, e o actual Centro de Lingüística resulta da restruturação recente do Centro de Estudos Comparados de Línguas e Literaturas Modemas, criado por decisão do Senado da Universidade com o apoio da então Junta Nacional de Investigação Científica e Tecnológica - JNICT, pouco tempo apôs a criação, em 1977, da Faculdade de Ciências Sociais e Humanas da Universidade Nova de Lisboa. No seu início, pretendia-se que o Centro reunisse a investigação literária e lingüística dos docentes do Departamento de Línguas e Literaturas Modemas existente na altura, o qual reunia as línguas românicas e germânicas, as literaturas e a lingüística. Porém, do mesmo modo que o Departamento se dividiu em cinco, do Centro foram saindo vários grupos ao longo dos anos, até que, há apenas um ano, se concretizou a separação do gmpo de Lingüística do gmpo que restava das Literaturas, dando origem ao Centro de Lingüística e a dois outros Centros de Literatura, um de Estudos Anglo-Portugueses e o outro de Estudos Portugueses.

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This paper was first presented at the 2012 – EU SPRI Conference “Towards Transformative Governance? - Responses to mission-oriented innovation policy paradigms”, Fraunhofer ISI, June 2012, Karlsruhe

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Dissertação de mestrado em História, especialização em História Medieval