5,063 research outputs found

    A base de dados do Arquivo Fotográfico Municipal da Figueira da Foz: implementacáo com bibliobase imagem

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    Actas de las Terceras Jornadas Imagen, Cultura y Tecnología celebradas del 28 al 30 de julio de 2004 en la Universidad Carlos III de Madri

    Criação de um tesauro. Arquivo fotografico municipal de Figueira da Foz

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    Actas de las Segundas Jornadas Imagen, Cultura y Tecnología celebradas entre el 1 y el 3 de julio de 2003 en la Universidad Carlos III de MadridPublicad

    Será a face de um suspeito inesquecível. O reconhecimento facial na identificação de suspeitos

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    Dissertação de Mestrado apresentada no ISPA – Instituto Universitário para obtenção de grau de Mestre na especialidade de Psicologia ClínicaProblema: O reconhecimento de faces é uma competência cognitiva fundamental, única e essencial para desenvolvimento e comportamento socio-afetivo. No contexto da testemunha ocular, o reconhecimento de faces é importante e integra diversos processos, sendo que entre as abordagens que permitem extrair dados e detalhes da testemunha sobre a face do suspeito, os lineups constituem-se como os melhores processos de identificação. No entanto, a literatura em Portugal é escassa sobre a relação entre o reconhecimento de faces e o processo de identificação lineup. Objetivo: Estudar a associação da memória de reconhecimento facial com uma tarefa similar ao método lineup e analisar o contributo de outras variáveis nesta relação. Método: Foi aplicado a 50 participantes a tarefa de identificação de suspeitos, similar aos lineups, e a prova Cambridge Face Memory Test (CFMT), que avalia o reconhecimento de faces, através de 3 fases: fase de introdução de faces, a fase introdução de novas faces e a fase introdução de novas faces com ruído. Resultados: Nas diversas análises realizadas é constatado que existem apenas associações significativas entre o sexo e a tarefa de Introdução de novas faces do CFMT. Discussão: Estes resultados não corroboram com a hipótese em estudo, no entanto, existem várias ressalvas quanto às conclusões obtidas, tendo por base as limitações da amostra, como a sua dimensão ou faixa etária, mas também erros na formação da tarefa de identificação de suspeitos.Problem: Face recognition is a fundamental cognitive competence, unique and essential forsocio-affective development and behavior. In the context of the eyewitness, face recognition is important and integrates several processes, and among the approaches that allow extracting data and details of the witness about the face of the suspect, the lineups are one of the best identification processes. However, the literature in Portugal is scarce about the relationship between face recognition and the lineup identification process. Objective: To study the association of facial recognition memory with a task like the lineup method, such as analyzing the contribution of other variables in this relationship. Method: The task of identifying suspects, like lineups, and the CFMT test, which evaluates face recognition, through 3 phases: phase of introduction of faces, phase of introduction of new faces and phase of introduction of new faces with noise, were applied to 50 participants. Results: In the various analyses performed, it is found that there are only significant associations between sex and the task introduction of new faces of CFMT. Discussion: These results do not corroborate the hypothesis under study, however, there are several caveats regarding the conclusions obtained, based on the limitations of the sample, such as their size or age group, but also errors in the formation of the task of identifying suspects

    Being Deaf in Mainstream Schools: The Effect of a Hearing Loss in Children’s Playground Behaviors

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    Naturalistic playground observations are a rich source of information when studying the social interactions of preschool children. On the playground, children can interact with their peers, explore different places and activities, and engage in different types of play. For deaf and hard of hearing (DHH) children, interactions at a playground can be more difficult because of the large number of auditory stimuli surrounding them. Constraints in the access to the social world on the playground might hamper DHH children’s interactions with their typically hearing (TH) peers, activities, and play. This pilot study aimed to examine the playground behaviors of preschool DHH children across three aspects: social levels, type of activities, and play choices. For this purpose, 12 preschool DHH children were observed during recess time, and their behaviors were coded and compared to their 85 TH peers. The preliminary findings indicate that DHH children spend less time in social interactions compared to their TH peers and that they still face difficulties when socially engaging with their TH peers. These findings suggest that interventions should focus on three aspects: the physical environment awareness of TH peers about communicating with DHH children, and the use of exercise play to facilitate social interactions between DHH children and their TH peers

    A matemática das eleições

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    Tese de mestrado, Matemática para Professores, Universidade de Lisboa, Faculdade de Ciências, 2009Enquanto membros de sociedades democráticas, os actos eleitorais são para nós uma presença constante, não existindo o hábito de questionar a sua pertinência ou validade. Mas uma breve reflexão sobre as eleições a que vulgarmente assistimos mostra uma realidade perturbadora. O presente trabalho aborda a temática eleitoral e as decisões do ponto de vista matemático: serão os métodos de contagem de votos que utilizamos justos? Quais os defeitos a apontar-lhes? De que paradoxos sofrem? Que propriedades são indispensáveis? A vontade dos votantes é fielmente reflectida num acto eleitoral? Na realidade, vai ser possível encontrar situações em que a decisão tomada, ou o candidato eleito, estarão bastante errados. À medida que se lê este documento encontram-se situações paradoxais graves em métodos usados actualmente em muitas nações democráticas. Ao explorar estes casos, tentando perceber as dificuldades inerentes a um processo de decisão, é possível vislumbrar soluções…As soluções (ou possibilidade de soluções) aqui apresentadas, não sendo sempre óptimas, são bastante aceitáveis e satisfazem o sentido comum de justiça, de real expressão do que pretendem os votantes.As members of democratic societies, the elections are a constant presence, and their pertinence or value aren’t questioned. But when reflecting on the electoral procedures, we commonly see a disturbing reality. This work approaches the elections and decisions theme from a mathematical point of view: are the electoral methods we use fair? Are there any flaws? Which characteristics do we consider indispensable? Is the voters will really reflected in the elections? In fact, we find situations in which the decision or the candidate elected will be wrong. As we read this document, we will be facing serious paradoxes in methods used nowadays in many democratic societies. By exploring these situations and trying to understand the problems within an electoral procedure, it’s possible to find solutions…The solutions (or possible solutions) here presented, not always being optimal, are quite acceptable and satisfy the common sense of justice and the need of expressing what the voters really want

    Propriedades antioxidantes e compostos bioactivos em vinhos portugueses monocasta

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    Tem sido atribuída ao vinho a designação de alimento antioxidante, devido ao seu alto teor em compostos polifenólicos, pelo que o seu consumo moderado pode apresentar efeitos benéficos para a saúde do consumidor. Neste trabalho foram estudados 228 vinhos portugueses monocastas (190 tintos, 30 brancos e 8 rosés), produzidos em 8 regiões do país, (Alentejo, Algarve, Península de Setúbal, Lisboa, Tejo, Verdes, Dão e Trás-os-Montes e Alto Douro) a partir de 12 castas tintas (Alfrocheiro, Alicante Bouschet, Aragonez-Tinta Roriz, Cabernet Sauvignon, Castelão, Merlot, Petit Verdot, Syrah, Tinta Miúda, Touriga Nacional, Trincadeira e Vinhão) e 6 castas brancas (Antão Vaz, Arinto, Chardonnay, Fernão Pires, Malvasia Fina e Verdelho). Estes vinhos foram avaliados quanto à sua composição fenólica por HPLC-DAD, propriedades antioxidantes (reacção de Folin-Ciocalteu, poder de redução férrica, FRAP e capacidade de sequestração do radical DPPH) e foram caracterizados por UV-VIS. Observaram-se correlações fortes entre as actividades antioxidantes dos vinhos e as suas características cromáticas, nomeadamente as suas absorvâncias a 420, 520 e 620 nm, mas também com as absorvâncias a 280 nm, 320 nm ou 360 nm que correspondem a compostos fenólicos não corados. As castas Alicante Bouschet e Petit Verdot destacaram-se quanto às suas propriedades antioxidantes, enquanto as regiões da Península de Setúbal e do Dão revelaram ter características que favorecem a actividade antioxidante dos vinhos nelas produzidos, por comparação com vinhos das mesmas castas produzidos noutras regiões. A análise de HPLC permitiu detectar 52 compostos fenólicos (17 ácidos hidroxibenzóicos ou derivados, 8 flavanóis ou procianidinas, 12 ácidos hidroxicinâmicos e 7 flavonóis) presentes na maior parte dos vinhos tintos analisados. Os resultados obtidos neste trabalho evidenciam a complexidade de factores que determinam as propriedades biológicas e composição fenólica dos vinhos tintos, rosés ou brancos, e que incluem casta, parâmetros edafo-climáticos e características do processo de vinificação

    Life Cycle Assessment in Road Pavement Infrastructures: A Review

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    The need to meet society's demands for road infrastructure while minimizing the resulting environmental impacts is a source of great complications. In this context, Life Cycle Assessment (LCA) can be useful by applying a set of rules and processes for the environmental assessment of projects. The objectives of this study were to present the main environmental impact categories associated with emissions from the life cycle phases of a road pavement and how to estimate them. In addition, this paper provides examples of LCA applications on these infrastructures. In view of the evolution of research on LCA, a compilation was made on: the main categories of environmental impact associated with emissions; phases of life cycle impact assessment; and procedures and methods of impact estimation. The impact categories presented are associated with climate change, acidification, ozone depletion, tropospheric ozone formation, eutrophication, and Particulate Matter Formation. Not all methods are able to generate indicators for all types of impact and, depending on the type of materials and services that make up the inventory of the alternatives analyzed, one specific method may be more appropriate to use. The conclusions are that for each environmental impact, the results depend on the input parameters, such as energy flows and materials, along with their processing by methods of life cycle impact assessment. Besides this, despite the great diversity of the databases for the steps of life cycle assessment of roadway pavement, there is a general consensus about the nature of these steps. Doi: 10.28991/CEJ-2022-08-06-015 Full Text: PD

    The relationship between the quality of kindergartens’ outdoor physical environment and preschoolers’ social functioning.

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    The ability to initiate and engage in relationships is a critical landmark and predictor of children’s development and well-being. In kindergarten, children exhibit greater social participation outdoors rather than indoors. Indeed, the physical environment influences preschoolers’ social proximity. In this study, we examine the relationship between the quality of kindergartens’ outdoor physical environment and preschoolers’ social functioning. Two kindergartens in Gondomar, Portugal, were selected to participate according to different levels of their physical environment outdoors (poor and fair quality) and measured by a specific physical environment rating scale. Twenty-six children (aged 3–6, 10 boys) participated in this study. Children’s social proximity at the playground was measured through Radio Frequency Identification Devices (RFID). Mann–Whitney statistical tests were used to compare social proximity between groups. Our results showed that in the higher quality outdoor area, children spent less time alone and more time in social proximity with their peers in smaller groups (one or two children). More time was also spent in social proximity with different genders. Our study emphasizes the critical importance of reviewing kindergartens’ outdoor physical environments to support preschoolers’ social needs in a more challenging and diverse setting
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