7,609 research outputs found

    An investigation into the influence of land-use, social networks and information and communication technologies on destination choice for social activities

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    Information and Communication Technologies (ICT) enable individuals to travel more flexibly. The choice of location for social activities has become very flexible. In addition to this, land-use characteristics also play a vital role in the location of social activities. This work aims to analyse the influence of land-use characteristics, ICT use, and social networks in the destination choices for face-to-face social activities of university students during both weekdays and weekends. Students from the two different campuses of the Instituto Superior Técnico were presented with an online questionnaire, which was intended to collect information about their use of ICT and social networks, in addition to their travel characteristics and socio-demographics. Emphasis was made upon capturing the characteristics of social networks and ICT usage. Information on land-use characteristics was obtained from secondary sources. Factor analysis was initially carried out to extract factors related to the use of ICT and social networks; these were later used to model the destination choice for social activities. The alternatives considered for destination choice included: home or the vicinity thereof, university or the vicinity thereof, other locations (further away from home and university), and evenly spread locations – having no specific priority for any of the other three locations considered. The analysis was performed separately for travel during weekdays and weekends so that an understanding of the differences and similarities in behaviour during these different time periods could be garnered. A multinomial logit model was estimated to model this choice. The results point to the relevance of land-use characteristics, the location of close friends, and modes of interaction. Individuals residing in more accessible central, and denser areas, were more likely to have activities distributed evenly across the city. These results stress the relevance of accessibility in allowing larger and more diverse spaces to be used for social activities

    The Portuguese High Speed Rail Network; Relating Financing to Strategic and Operating Issues

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    This paper describes the implementation of the Portuguese High Speed Rail (HSR) Network. The business model developed by RAVE for the PPP’s related with the HSR infrastructure is described and discussed. Following a recently awarded research project (EXPRESS) aimed at studying the strategic aspects related with the implementation of HSR is presented and its aspects more directly related with HSR operation which could be relevant in a PPP context are discussed

    Excessive daytime sleepiness after traumatic brain injury : association with periodic limb movements and REM behavior disorder : case report

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    Um homem de 52 anos, procurou o Hospital. Universitário de Brasília com queixa de sono agitado. Sua esposa relatava, desde há cerca de 10 anos, intensa movimentação de membros e agressividade em meio a sonhos violentos. Desde então apresentava sonolência diurna excessiva. Havia relato de traumatismo de crânio há 34 anos e coma de 2 meses de duração. A vídeo-polissonografia revelou comportamento agressivo e agitado durante o sono REM, e movimentos periódicos de pernas. Havia importante sonolência diurna no teste de latências de sono. Foi instituído tratamento com levodopa-benzerazida 100/25 mg à noite. Após 10 semanas de evolução, houve melhora da movimentação noturna global, e desaparecimento dos episódios ligados a sonhos de conteúdo violento. Este caso nos permite analisar a associação entre trauma craniano e alterações nas vias dopaminérgicas (movimentos periódicos das pernas e distúrbio de comportamento do sono REM) e revisar a importância dos distúrbios na produção de hipocretina hipotalâmica na fisiopatologia desse quadro clínico. ______________________________________________________________________________________________________________ ABSTRACTA 52 year-old male patient, had complaint of "restless sleep". His wife informed that for the past ten years the patient had presented intense and aggressive body movements, and sometimes, violent dreams. The patient also complained of excessive daytime sleepiness. His relevant previous medical history included a traumatic brain injury at the age of 28 which left him in coma for two months. A video-polysomnography showed periodic leg movements and, during REM sleep, aggressive and agitated behaviour. The multiple sleep latency test revealed extremely short latencies. Initially, he was treated with levodopa-benzerazide, 100/25 mg, 2 hours before bedtime. After 10 weeks his overnight behaviour pattern improved and leg movements diminished. This case supports the hypothesis of an association between cranial trauma and alterations in the dopaminergic pathways represented by periodic leg movements during sleep and a sleep behaviour disorder and proposes the possibility of hypothalamic hypocretin involvement in its pathophysiology

    The relationship between young people's transit use and their perceptions of equity concepts in transit service provision

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    This study investigates the effect of price and travel mode fairness and spatial equity in transit provision on the perceived transit service quality, willingness to pay, and habitual frequency of use. Based on the theory of planned behavior, we developed a web-based questionnaire for revealed preferences data collection. The survey was administered among young people in Copenhagen and Lisbon to explore the transit perceptions and use under different economic and transit provision conditions. The survey yielded 499 questionnaires, analyzed by means of structural equation models. Results show that higher perceived fairness relates positively to higher perceived quality of transit service and higher perceived ease of paying for transit use. Higher perceived spatial equity in service provision is associated with higher perceived service quality. Higher perceived service quality relates to higher perceived ease of payment, which links to higher frequency of transit use

    Transit Use by Young People in Times of Financial Austerity: A Cause of Equity Concern?

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    This study investigates the effect of price and travel time fairness and spatial equity in transit provision on the perceived transit service quality, willingness to pay, and habitual frequency of use. Based on the theory of planned behavior, we developed a web-based questionnaire for revealed preferences data collection. The survey was administered among young people in Copenhagen and Lisbon to explore the transit perceptions and use under different economic and transit provision conditions. The survey yielded 499 questionnaires, analyzed by means of structural equation models. Results show that higher perceived fairness relates positively to higher perceived quality of transit service and higher perceived ease of paying for transit use. Higher perceived spatial equity in service provision is associated with higher perceived service quality. Higher perceived service quality relates to higher perceived ease of payment, which links to higher frequency of transit use

    Responsabilidade civil constitucional

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    Exposição apresentada na EMERJ, em 25.05.01, no Seminário “Aspectos Multidisciplinares da Lei de Responsabilidade Fiscal”

    A experiência da lei da ficha limpa nas eleições de 2012 : uma análise do perfil dos impugnados e dos reflexos da aplicação da lei

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    Orientador: Prof. Dr. Emerson Urizzi CerviAutor não autorizou a divulgação do arquivo digitalDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Humanas, Programa de Pós-Graduação em Ciência Política. Defesa: Curitiba, 27/02/2015Inclui referênciasResumo: A lei da ficha limpa tornou mais rigorosa a legislação aplicável aos registros de candidaturas, vigorando, pela primeira vez, nas eleições municipais de 2012. Assim, a presente pesquisa possui a finalidade de verificar, empiricamente, a primeira experiência efetiva da aplicação da lei e de responder os questionamentos sobre quem são os candidatos impugnados com base em fundamentos da lei e quais são os motivos relacionados a esta situação. Remete, para tanto, aos conceitos sobre a seleção de candidatos à luz da teoria democrática, as críticas acerca das inelegibilidades e das restrições aos direitos fundamentais, bem como desenvolve a análise sobre os impedimentos legais como barreiras às candidaturas. Discorre, ainda, sobre os fatos históricos relacionados à criação da lei e o percurso inerente à sua formulação, além de apontar quais foram as alterações promovidas no sistema até então vigente. A hipótese levantada é a de que os candidatos impugnados com fundamentos da lei da ficha limpa são aqueles com vasta experiência na gestão pública e com histórico recorrente de disputa eleitoral. Utiliza-se da metodologia quantitativa e da coleta de dados relacionados ao perfil do candidato impugnado com base na ficha limpa e do seu registro de candidatura. Dentre os achados, conclui pela comprovação da hipótese aventada, uma vez que os dados demonstram que grande parcela dos candidatos impugnados o foi por razões relacionadas ao exercício de funções públicas sujeitas ao controle externo exercido por tribunais de contas, bem como possuem histórico considerável de participação em pleitos eleitorais anteriores. Palavras chave: ficha limpa, inelegibilidades, vida pregressa, impugnação de candidaturas; eleições municipais de 2012.Abstract: The ficha limpa law made more rigorous the legislation applicable to candidatures of registrations and was first applied in 2012 municipal elections. This research has the purpose to verify empirically the first effective application of the law and to identify who are the candidates contested or barred based on its fundamentals and the reasons related. First, the study brings concepts about the selection of candidates in the light of democratic theory, reviews the thesis about the ineligibility as restriction on fundamental rights and develops the analysis of the legal impediments as barriers to be candidate. Second, it presents the historical facts related to the law and points out the changes brought to the previously ruling system. The research hypothesis claims that candidates contested on grounds of the ficha limpa law are those with extensive experience in public administration and with recurrent history of election. To test it this work adopted the quantitative methodology and collected data related to the contested candidates' profile and their application record itself. Among other findings, the study confirms the hypothesis in accordance with the data that shows that a large proportion of contesting derives from reasons related to public office subject to external control exercised by courts of auditors and from a history of participations in previous elections. Keywords: ficha limpa law, ineligibility, personal history, contesting candidatures; 2012 municipal election

    Preservação digital : um estudo sobre padrões de metadados

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    Trabalho de Conclusão de Curso (graduação)—Universidade de Brasília, Faculdade de Ciência da Informação, 2018.Discute a preservação em meio digital, identificando e apresentando padrões de metadados pelo viés da Ciência da Informação. Fundamenta a presente investigação segundo uma literatura que traz conceitos de memória e de preservação digital, especialmente elencando métodos de preservação como a adoção de padrões e os metadados de preservação, que por sua vez discorre sobre metadados, exemplificados pelo esquema dublin core. Resulta, conforme uma metodologia constituída pelo método dedutivo e pelas técnicas de pesquisa exploratória e bibliográfica, na identificação de padrões de metadados para preservação dos dados de objetos digitais e na aplicação e uso desses padrões em ambientes digitais, como bibliotecas digitais, repositórios digitais e catálogos eletrônicos, a partir da iniciativa de preservação OAIS e dos esquemas de metadados PREMIS, MODS e METS. Conclui-se que a utilização de padrões de metadados para descrever e armazenar documentos, bem como realizar a guarda dos dados de forma padronizada e comunicável entre máquinas, é uma importante etapa no processo de preservação digital, facilitando a comunicação entre os centros de informação/Instituições em redes de informação via o conceito de interoperabilidade.Discusses the preservation in a digital environment, identifying and presenting methods of implementation and use by the bias of Information Science. Bases the present investigation according to a literature that brings concepts of memory and digital preservation, especially by naming preservation methods such as the adoption of standards and preservation metadata, which in turn talks about metadata, exemplified by the dublin core scheme. The result according to a methodology consisting of the deductive method and the techniques of exploratory and bibliographic research is the identification of digital preservation strategies, emphasized by applications and use of the following preservation metadata schemes: OAIS, PREMIS, MODS and METS. Concluded that there is a longing for the use of standards to describe and store documents, as well as to carry out guarding and preservation in a standardized and communicable way between machines, an aspiration that would facilitate communication between information centers/Institutions in information networks via the concept of interoperability

    Por uma semântica museal : afetação, experiência e ressonância na teoria museológica brasileira contemporânea

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    Trabalho de Conclusão de Curso (graduação)—Universidade de Brasília, Faculdade de Ciência da Informação, 2019.Esta pesquisa tem como objetivo geral analisar o quadro conceitual do campo da Museologia brasileira e de suas estruturas terminológicas e semânticas à luz da identificação e da pesquisa sobre como os termos afetação, experiência e ressonância se estabelecem no discurso dos estudiosos Mário de Souza Chagas (e o termo afetação), Bruno César Brulon Soares (e o termo experiência) e José Reginaldo Santos Gonçalves (e o termo ressonância), . Inclusive são identificadas e analisadas características biográficas e acadêmicas desses autores, os quais participam da Teoria Museológica brasileira contemporânea, a fim de espelhar posicionamentos acadêmicos que se empreendem sob terminologias de cunho relacional e interacional e de se projetar potencialidades e conjecturas semânticas e epistemológicas do campo museal e para o campo museal. Nesta pesquisa, problematiza-se também sobre como a composição terminológica do campo da Museologia se insere na Teoria Museológica brasileira contemporânea. Ademais, observa-se de que maneira é traduzida para a linguagem da Museologia questões nocionais e conceituais do campo.This research aims to analyze the conceptual framework of Brazilian Museology and its terminological and semantic structures in light of the identification and research on how the terms affectation, experience and resonance are established in the discourse of Mário de Souza Chagas (and the term affectation), Bruno César Brulon Soares (and the term experience) and José Reginaldo Santos Gonçalves (and the term resonance). Biographical and academic characteristics of these authors are also identified and analyzed, they are part of contemporary Brazilian Museum Theory. Academic positions related to relational and interactional terminologies are presented in order to project semantic and epistemological constructions, and potentialities, of the museological field and for it. This research also discusses how the terminological composition of the Museology fits into contemporary Brazilian Museological Theory. Therefore, it is observed how notional and conceptual issues are translated into the language of Museology
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