5G innovation opportunities-- A discussion paper

On the shaping of 5G technologies and networks, scope for wider service and applications innovation and UK strengths and opportunities.

Gestão de energia em ambiente industrial

A Sociedade da Água de Luso, S.A., localizada no concelho de Mealhada, é uma empresa do setor do engarrafamento de águas minerais naturais, de nascente e de consumo humano. Esta realiza as suas atividades, tendo em consideração a eficiência energética, ao longo do seu processo produtivo. Desta forma, o trabalho desenvolvido teve como objetivo o acompanhamento da implementação do sistema de monitorização e recolha de dados, que posteriormente foi útil na redução dos consumos energéticos (consumo de ar comprimido). Para além disto, também foi proposta uma medida de eficiência energética que visa a redução de energia elétrica na área da iluminação. O sistema de monitorização e recolha de dados e a criação de uma equipa de redução do consumo de ar comprimido permitiram a identificação das áreas de atuação, a monitorização das metas estipuladas no âmbito da equipa e a detecção de anomalias. A medida de eficiência energética aplicada incide na substituição de lâmpadas fluorescentes tubulares T8 por lâmpadas fluorescentes tubulares T5. Assim, a implementação deste sistema e a aplicação das medidas de eficiência energética na rede de ar comprimido no âmbito da equipa permitiram uma redução de 0,03 kWh/hL o que significa uma poupança de 5.600 € em quinze semanas. Ao nível da iluminação as medidas sugeridas permitem uma redução de 8.945 kWh/ano o que corresponde a uma poupança de 1.055 €/ano.

Caractérisation des effets de l’hyperglycémie chronique dans la choroïde d’yeux diabétiques

But: Le diabète est un problème important de santé publique et la complication oculaire la plus commune est la rétinopathie diabétique (RD). Certaines études indiquent que la choroïde des patients diabétiques est affectée sans signe apparent de RD. Notre hypothèse est que l’élévation du stress oxydant liée à l’hyperglycémie chronique affecte la fonction choroïdienne à un stade précoce de la RD. Nous proposons d’étudier la glycolyse, le métabolisme mitochondrial, le stress nitrosatif et la méthylation de l’ADN ainsi que de caractériser les modifications histologiques dans la choroïde diabétique. Méthodes: L’expression des gènes/protéines associés à la glycolyse, au métabolisme mitochondrial et à la production de l’oxyde nitrique a été comparée par profilage génique et immunobuvardage Western entre les choroïdes saines et diabétiques. Les niveaux globaux de méthylation et d’hydroxyméthylation de l’ADN ont été quantifiés par immunoslot blot et HPLC-MS/MS dans ces tissus. Enfin, des coupes tissulaires d’yeux de donneurs sains ou diabétiques avec RD non proliférante (RDNP) ou proliférante (RDP) ont été colorées au trichrome de Masson et au Weigert. L’épaisseur de la choroïde et de la membrane de Bruch, ainsi que la densité et le diamètre des vaisseaux sanguins choroïdiens ont été analysés. Résultats: Nos résultats montrent une dérégulation de l’expression de certains transcrits de la choroïde diabétique, mais peu de différences au niveau de l’expression protéique des cibles validées. Le niveau global de méthylation de l’ADN est similaire entre les donneurs sains et diabétiques. Nos analyses histologiques démontrent une diminution de l’épaisseur de la choroïde et une dégénérescence des choriocapillaires et des veines/veinules chez les donneurs diabétiques atteints de RDP. Conclusions: L’étude de la choroïde est importante, car l’atteinte de ce tissu a de graves répercussions sur la fonction rétinienne. L’identification de cibles dans la choroïde ouvre de nouvelles perspectives pour un traitement préventif de la RD.

Gait Regulation for Bipedal Locomotion

This work explores regulation of forward speed, step length, and slope walking for the passive-dynamic class of bipedal robots. Previously, an energy-shaping control for regulating forward speed has appeared in the literature; here we show that control to be a special case of a more general time-scaling control that allows for speed transitions in arbitrary time. As prior work has focused on potential energy shaping for fully actuated bipeds, we study in detail the shaping of kinetic energy for bipedal robots, giving special treatment to issues of underactuation. Drawing inspiration from features of human walking, an underactuated kinetic-shaping control is presented that provides efficient regulation of walking speed while adjusting step length. Previous results on energetic symmetries of bipedal walking are also extended, resulting in a control that allows regulation of speed and step length while walking on any slope. Finally we formalize the optimal gait regulation problem and propose a dynamic programming solution seeded with passive-dynamic limit cycles. Observations of the optimal solutions generated by this method reveal further similarities between passive dynamic walking and human locomotion and give insight into the structure of minimum-effort controls for walking.

Original sin: divine and symbolic violence in the turn to the Apostle Paul

When we take a step back from the imposing figure of physical violence, it becomes possible to examine other structurally violent forces that constantly shape our cultural and political landscapes. One of the driving interests in the “turn to Paul” in recent continental philosophy stems from wrestling with questions about the real nature of contemporary violence. Paul is positioned as a thinker whose messianic experience began to cut through the violent masquerade of the existing order. The crucifixion and resurrection of the Messiah (a slave and a God co-existing in one body) exposed the empty grounding upon which power resided. The Christ-event signifies a moment of violent interruption in the existing order which Paul enjoins the Gentiles to participate in through a dedication of love for the neighbour. This divine violence aims to reveal and subvert the “powers,” epitomised in the Roman Empire, in order to fulfil the labour of the Messianic now-time which had arrived. The impetus behind this research comes from a typically enigmatic and provocative section of text by the Slovene philosopher, cultural critic, and Christian atheist Slavoj Žižek. He claims that 'the notion of love should be given here all its Paulinian weight: the domain of pure violence… is the domain of love' (2008a, 173). In this move he links Paul’s idea of love to that of Walter Benjamin’s divine violence; the sublime and the cataclysmic come together in this seemingly perverse notion. At stake here is the way in which uncovering violent forces in the “zero-level” of our narrative worldviews aids the diagnosis of contemporary political and ethical issues. It is not enough to imagine Paul’s encounter with the Christ-event as non-violent. This Jewish apocalyptic movement was engaged in a violent struggle within an existing order that God’s wrath will soon dismantle. Paul’s weak violence, inspired by his fidelity to the Christ-event, places all responsibility over creation in the role of the individual within the collective body. The centre piece of this re-imagined construction of the Pauline narrative comes in Romans 13: the violent dedication to love understood in the radical nature of the now-time. 3 This research examines the role that narratives play in the creation and diagnosis of these violent forces. In order to construct a new genealogy of violence in Christianity it is crucial to understand the role of the slave of Christ (the revolutionary messianic subject). This turn in the Symbolic is examined through creating a literary structure in which we can approach a radical Nietzschean shift in Pauline thought. The claim here, a claim which is also central to Paul’s letters, is that when the symbolic violence which manipulates our worldviews is undone by a divine violence, if even for a moment, new possibilities are created in the opening for a transvaluation of values. Through this we uncover the nature of original sin: the consequences of the interconnected reality of our actions. The role of literature is vital in the construction of this narrative; starting with Cormac McCarthy’s No Country for Old Men, and continuing through works such as Melville’s Bartleby the Scrivener, this thesis draws upon the power of literature in the shaping of our narrative worlds. Typical of the continental philosophy at the heart of this work, a diverse range of illustrations and inspirations from fiction is pulled into its narrative to reflect the symbolic universe that this work was forged through. What this work attempts to do is give this theory a greater grounding in Paul’s letters by demonstrating this radical kenotic power at the heart of the Christ-event. Romans 13 reveals, in a way that has not yet been picked up by Critchley, Žižek, and others, that Paul opposed the biopolitical power of the Roman Empire through the weak violence of love that is the labour of the slaves of Christ on the “now-time” that had arrived.

O percurso escolar e a orientação vocacional dos jovens com síndrome de asperger

Trabalho apresentado à Escola Superior de Educação de Paula Frassinetti realizado no âmbito da Tese de Mestrado

A representação social do papel de gestores em organizações não governamentais

The discussions concerning the absence of a management model appropriate to the peculiarities of third sector organizations have not been impeditive to their emphasized expansion in the last decades. In the attempt of understanding this phenomenon from the perspective of those who manage social organizations, this work based on the theory of social representations to understand the notion that organization managers of the third sector - based in Fortaleza CE - have of the part that they play and how this notion influences the direction of their activities. Social representations of managers of four different categories of non-governmental organizations have been investigated, each category composed of two unities. The categories researched were: social integration through art and education, prevention and treatment of alcohol and drug abuse, children s health assistance and community action. By using Doise s Societal Approach, the role of social managers translated in intraindividual, interindividual and situational processes of their actions, has been analysed within the social representations, focusing on beliefs, values, symbols and stories that give meaning to the existence of non-governmental organizations. Analysis and discussion of data displayed the existence of diversity in the understanding of managers within their practice, in other words, the management profile is also its own manager s. The branch where an organization acts is also preponderant in the shaping of a management style. It could be deduced, from to the organizations researched, that professional formation and the manager s social insertion mainly, are determinative factors in the outlining of a management model of its own. It was concluded that, due to heterogeneity of interests and action segments, there is no systematic process for social management among organizations. Management styles are supported by their director s own perception of achievement, who model organizations according to their contingencies

Previsão da Classificação da qualidade dos efluentes da indústria petrolífera com recurso a sistemas inteligentes

O presente trabalho realizou-se na Refinaria de Sines e teve como principal objectivo a utilização de ferramentas oriundas da Área Científica da Inteligência Artificial no desenvolvimento de modelos de previsão da classificação da Água Residual Industrial de acordo com a Legislação em vigor, com vista à minimização dos impactes ambientais e das tarifas aplicadas pela Concessionária (Águas de Santo André) à Refinaria. Actualmente a avaliação da qualidade do efluente é realizada através de métodos analíticos após colheita de uma amostra do efluente final. Esta abordagem é muito restritiva já que não permite actuar sobre o efluente em questão pois apenas pode evitar que, no futuro, uma mistura semelhante volte a ser refinada. Devido a estas limitações, o desenvolvimento de modelos de previsão baseados em Data Mining mostrou ser uma alternativa para uma questão pró-activa da qualidade dos efluentes que pode contribuir decisivamente para o cumprimento das metas definidas pela Empresa. No decurso do trabalho, foram desenvolvidos dois modelos de previsão da qualidade do efluente industrial com desempenhos muito semelhantes. Um deles utiliza a composição das misturas processadas e o outro, utiliza informações relativas ao crude predominante na mistura. ABSTRACT; This study has taken place at the Sines Refinery and its main objective is the use of Artificial Intelligence tools for the development of predictive models to classify industrial residual waters according with the Portuguese Law, based on the characteristics of the mixtures of crude oil that arrive into the Refinery to be processed, to minimize the Environmental impacts and the application of taxes. Currently, the evaluation of the quality of effluent is performed by analytical methods after harvesting a sample of the final effluent. This approach is very restrictive since it does not act on the intended effluent; it can only avoid that in the future a similar mixture is refined. Duet these limitations, the development of forecasting models based on Data Mining has proved to be an alternative on the important issue which is the quality of effluent, which may contribute to the achievement of targets set by the Company. During this study, two models were developed to predict the quality of industrial effluents with very similar performances. One uses the composition of processed mixtures and the other uses information regarding the predominant oil in the mixture.

Amor, paixão e atracção: Compreensão e delimitação de conceitos

Dissertação de Mestrado apresentada ao Instituto Superior de Psicologia Aplicada para obtenção de grau de Mestre na especialidade de Psicologia Social e das Organizações.

A pesca do bacalhau durante o período do Estado Novo (1933-1974) : contributo para as relações interculturais

A presente dissertação tem como objeto de estudo a pesca do bacalhau feita por portugueses sob a bandeira de Portugal durante o período do Estado Novo (1933-1974). Investigou-se as razões para um investimento e um protecionismo tão forte à indústria da pesca do bacalhau. É indissociável do estudo da demanda portuguesa por este peixe, à época muito abundante no noroeste atlântico, as políticas autárcicas e de subsistência pilares da economia do Estado Novo, assim como a implantação e robustecimento da Instituição Corporativa. Subjacente a estas linhas de matriz económica mas paradigmáticas do novo regime, estava também a reconstrução da identidade portuguesa, a sacralização do trabalho e a heroicidade do pescador português do bacalhau. A existência da tentativa de revivificação da glória dos descobrimentos na pesca do bacalhau. A criação de um ambiente social, político e religioso que levaram à persecução destas políticas e consequentemente do engrandecimento da estrutura do Estado Novo, resultando até na sedimentação de apoio popular. O desenvolvimento da frota de pesca longínqua foi quase uma única janela de oportunidades para o conhecimento de novos mundos. A montante e a jusante da atividade piscatória também se desenvolveram indústrias e comércio internacional. A participação em organizações internacionais de regulação das pescas proporcionou contatos Institucionais com outras nações, não raro utilizados para quebrar isolamentos e propagandear o Estado Novo e as suas manifestações culturais e identitárias que suscitaram relacionamentos interculturais. Para além destes contatos mais formais, também se desenvolveram contatos informais, que se repercutiram na criação e manifestação de conhecimento mútuo e claro de condições para a gestação da interculturidade. Estes desenvolvimentos de relações informais, de contatos profissionais também geraram relações culturais que se manifestaram em projetos individuais de vida associados às migrações.

"Policy externalisation" inherent failure : international financial institutions' conditionality in developing countries

Conditionalities – i.e. ‘exchanging finance for policy reform’ in an asymmetrical relationship between the ‘donor’ and the ‘recipient’ – are central mechanisms of the reform programmes of international financial institutions (IFIs). As they are imposed by outside entities, they can also be viewed as ‘policy externalisation’, which is paradoxically a massive intrusion in the shaping of a country’s domestic policies. The resilience of such devices is remarkable, however. Indeed, in the early 1980s, many developing countries were facing balance of payments difficulties and called upon these international financial institutions for financial relief. In exchange for this relief, they devised economic reforms (fiscal, financial, monetary), which were the conditions for their lending. These reforms were not associated with better economic performance, and this led the IFIs to devise in the 1990s different reforms, which this time targeted the functioning of the government and its ‘governance’, economic problems being explained by governments’ characteristics (e.g., rent-seekers). The paper demonstrates the limitations of the device of conditionality, which is a crucial theoretical and policy issue given its stability across time and countries. These limitations stem from: i) the concept of conditionality per se - the mechanism of exchanging finance for reform; ii) the contents of the prescribed reforms given developing countries economic structure (typically commodity-based export structures) and the weakness of the concept of ‘governance’ in view of these countries’ political economies; and iii) the intrinsic linkages between economic and political conditionalities, whose limitations thus retroact on each other, in particular regarding effectiveness and credibility.

Acesso à informação e intimidade : um dilema do Estado Democrático de Direito

Dissertação (mestrado)—Universidade de Brasília, Faculdade de Direito, Programa de Pós-Graduação em Direito, 2016.

Improving sentiment analysis via sentence type classification using BiLSTM-CRF and CNN

Different types of sentences express sentiment in very different ways. Traditional sentence-level sentiment classification research focuses on one-technique-fits-all solution or only centers on one special type of sentences. In this paper, we propose a divide-and-conquer approach which first classifies sentences into different types, then performs sentiment analysis separately on sentences from each type. Specifically, we find that sentences tend to be more complex if they contain more sentiment targets. Thus, we propose to first apply a neural network based sequence model to classify opinionated sentences into three types according to the number of targets appeared in a sentence. Each group of sentences is then fed into a one-dimensional convolutional neural network separately for sentiment classification. Our approach has been evaluated on four sentiment classification datasets and compared with a wide range of baselines. Experimental results show that: (1) sentence type classification can improve the performance of sentence-level sentiment analysis; (2) the proposed approach achieves state-of-the-art results on several benchmarking datasets.

La litterature francophone de l’Afrique subsaharienne en Suède : Les Femmes font place à la honte

The aim of the article is to present the place and the role of contemporary Francophone Sub-Saharan African literature in Sweden. This study attempts to compare three levels in the circulation of literary works: translation, reception, and content. These dimensions converge in the analysis in order to pin down the place and the role of this literature in the Swedish context. The study is delimited to writers born after the independencies. The results show that contemporary francophone novels translated and categorized as African are dominated by female writers. The critique reveals a semantic field stressing the theme of shame in the novels by these six female authors, which is examined through in-depth analysis of one novel from each author. Preliminary conclusions are that Francophone African literature is present on the Swedish market since the independencies and even before, though, contemporary works translated into Swedish are produced in the diaspora. A comparison between the three studied levels show that female writers contribute to the shaping of African literature in Sweden to a great extent, even though literary critics sometimes judge them severely. Their explorations of aesthetic forms marry a new discretely engaged literature, constructive rather than vindictive. In this literature, the core issue of facing the shame is presented as a way to reach individual and collective dignity.

Sistema de instrumentação mecanizada Hyflex EDM

A Endodontia é uma área em constante evolução. Consideráveis desenvolvimentos nos materiais e técnicas têm sido essenciais para o melhoramento dos resultados nos tratamentos realizados. É exemplo disso mesmo a constituição dos instrumentos Endodônticos primordiais, construídos em cordas de piano, com evolução para aço de carbono, material este que sofria corrosão provocado pelo cloro presente no hipoclorito de sódio. O aço de carbono evoluiu para aço inoxidável e deste as limas endodônticas passaram a ser feitas em níquel-titânio, conferindo-lhes melhor flexibilidade e efeito de memória de forma. Mesmo com todas estas melhorias significativas, fraturas de instrumentos e erros durante a instrumentação continuam a acontecer e com eles veio a necessidade da pesquisa de possíveis melhorias da constituição das limas em NiTi. Como resultado surgiram ligas como o M-wire, fase-R e CM-wire, criadas a partir de tratamentos térmicos, que trouxeram às limas Endodônticas maior flexibilidade e resistência à fratura que os instrumentos feitos em NiTi convencional. A mais recente evolução das limas Ni-Ti, desenvolvida pela Coltene Whaldent (Allstätten, Suiça), são as limas Hyflex EDM, limas para canais radiculares de 5ª geração. O seu processo de fabrico por eletroerosão cria uma superfície única fazendo com que estas limas sejam mais duras e resistam mais à quebra, aliado à sua alta flexibilidade. É possível assim reduzir o número de limas para a limpeza e modelagem dos canais durante os tratamentos endodônticos sem comprometer a preservação da anatomia dos canais. As limas Hyflex EDM possuem, tal como as limas Hyflex CM, o efeito de controle de memória (CM), o que confere propriedades muito similares entre os dois sistemas.