Herramienta para la representación 3D, usando WebGL, de clusters de supercomputación

Este Trabajo de Fin de Grado constituye el primero en una línea de Trabajos con un objetivo común: la creación de una aplicación o conjunto de aplicaciones que apoye a la administración de un cluster de supercomputación mediante una representación en tres dimensiones del mismo accesible desde un navegador. Esta aplicación deberá ser de fácil manejo para el personal que haga uso de ella, que recibirá información procedente de distintas fuentes sobre el estado de cada uno de los dispositivos del cluster. Concretamente, este primer Trabajo se centra en la representación gráfica del cluster mediante WebGL, el estándar para renderizado 3D en navegadores basado en OpenGL, tomando como modelo de desarrollo el SCBI (Centro de Supercomputación y Bioinnovación) de la Universidad de Málaga. Para ello, se apoyará en la creación de una herramienta con la que describir texualmente de forma intuitiva los elementos de una sala de supercomputadores y los datos asociados a los mismos. Esta descripción será modificable para adaptarse a las necesidades del administrador de los datos.

Burnout em auxiliares de acção médica e sua relação com traços de personalidade e estratégias de coping

Dissertação de Mestrado apresentada ao Instituto Superior de Psicologia Aplicada para obtenção de grau de Mestre na especialidade de Psicologia Clínica

Novas tecnologias de gestão : a produção em acção : funcionamento e gestão de stocks

Académico - Licenciaturas

Benchmarking Density Functional Based Tight-Binding for Silver and Gold Materials: From Small Clusters to Bulk

International audience

Reactive clusters on a membrane

We investigate the reaction dynamics of diffusive molecules with immobile binding partners. The fixed reactants build clusters that comprise just a few tens of molecules, which leads to small cluster sizes. These molecules participate in the reaction only if they are activated. The dynamics of activation is mapped to a time-dependent size of an active region within the cluster. We focus on the deterministic description of the dynamics of a single cluster. The spatial setup accounts for one of the most important determinants of the dynamics of a cluster, i.e. diffusional transport of reaction partners toward or away from the active region of the cluster. We provide numerical and analytical evidence that diffusion influences decisively the dynamic regimes of the reactions. The application of our methods to intracellular Ca²⁺ dynamics shows that large local concentrations saturate the Ca²⁺ feedback to the channel state control. That eliminates oscillations depending on this feedback.

Impacto de uma acção de team building militar na coesão e cooperação de uma equipa de futebol júnior

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

Aprender no “Interior Português”: Vértices para um pensamento integrado e uma acção responsável

A Educação acontece sempre numa determinada circunstância: um espaço, um momento, uma época, um ambiente relacional, uma rede institucional, um território são, entre outros, vértices que sempre determinaram os limites da geometria circunstancial de cada episódio educativo. Este capítulo remete para uma equação em que, às variáveis mais essenciais (que assentam nos valores de igualdade de oportunidades e da justiça social) e mais técnicas (que decorrem dos conhecimentos, dos métodos ou dos recursos didáticos) se devem juntar as novas variáveis que resultam da necessidade de estancar o despovoamento, de promover um adequado ordenamento do território, de assegurar a sustentabilidade das pequenas comunidades, de promover a empregabilidade dos indivíduos e a competitividade das empresas, de reforçar os laços sociais e de aumentar a atratividade do território.

Projecto Arte e Educação no Espaço Museológico : estudo exploratório de uma investigação-acção no Museu Nacional de Arte Contemporânea

O projecto Arte e Educação no Espaço Museológico realizado no Museu Nacional de Arte Contemporânea, no âmbito do Mestrado em Arte e Educação da Universidade Aberta, pretende afirmar que todos os espaços do museu intervêm junto dos diversos públicos e são importantes para que os museus sejam lugares de maravilhamento, de encontro, de reflexão, de criatividade e de aprendizagem. Em parceria com o Serviço Educativo do Museu, a Cafetaria desenvolveu, de forma articulada, actividades envolvendo grupos distintos de públicos e a exposição Pintura Portuguesa 1850-1975, com o objectivo de contribuir para a atractividade do museu e valorizar a experiência dos visitantes. O projecto desenvolvido teve em conta a transmutação das paredes do museu em si mesmo para o espaço da Cafetaria como lugar de tertúlia, onde foi possível num ambiente não formal a consumação das diversas actividades realizadas no espaço do MNAC como a sua abertura e complementaridade de uma outra forma de ser/estar no museu. A abrangência de públicos que integraram este projeto proporcionam uma troca rica de saberes, de vivências, de experiências e de uma diversidade plural de ver /estar no mundo. Para além, do contacto com a arte pictórica na sua maior essência e da fruição estética, foi possível proporcionar a estes públicos o contacto com uma outra forma de arte, a gastronomia, tantas vezes retratada por diversos artistas. Este projecto pretende ser uma lufada de ar fresco no espaço museológico e uma outra forma de ver /estar no museu em que é possível a fruição da arte num espaço de lazer, de ócio, de introspeção e retrospeção.

Stable spike clusters for the one-dimensional Gierer-Meinhardt system

We consider the Gierer-Meinhardt system with precursor inhomogeneity in a one-dimensional interval. A spike cluster is the combination of several spikes which all approach the same point in the singular limit of small activator diffusivity. We rigorously prove the existence of a steady-state spike cluster consisting of N spikes near a non-degenerate local minimum point of the smooth inhomogeneity, where N is an arbitrary positive integer. Further, we show that this solution is linearly stable. We explicitly compute all eigenvalues, both large (of order O(1)) and small (of order o(1)). The main features of studying the Gierer-Meinhardt system in this setting are as follows: (i) it is biologically relevant since it models a hierarchical process (pattern formation of small-scale structures induced by a pre-existing large-scale inhomogeneity), (ii) it contains three different spatial scales two of which are small. (iii) all the expressions can be made explicit and often have a particularly simple form.

As dinâmicas dos clusters como potenciadoras da competitividade empresarial regional : o caso do cluster hortícola do Ribatejo & Oeste : análise comparativa com Almeria (Espanha)

Mestrado em Gestão e Estratégia Industrial

Global, regional, and national comparative risk assessment of 79 behavioural, environmental and occupational, and metabolic risks or clusters of risks in 188 countries, 1990-2013: a systematic analysis for the Global Burden of Disease Study 2013

Background: The Global Burden of Disease, Injuries, and Risk Factor study 2013 (GBD 2013) is the first of a series of annual updates of the GBD. Risk factor quantification, particularly of modifiable risk factors, can help to identify emerging threats to population health and opportunities for prevention. The GBD 2013 provides a timely opportunity to update the comparative risk assessment with new data for exposure, relative risks, and evidence on the appropriate counterfactual risk distribution. Methods: Attributable deaths, years of life lost, years lived with disability, and disability-adjusted life-years (DALYs) have been estimated for 79 risks or clusters of risks using the GBD 2010 methods. Risk-outcome pairs meeting explicit evidence criteria were assessed for 188 countries for the period 1990-2013 by age and sex using three inputs: risk exposure, relative risks, and the theoretical minimum risk exposure level (TMREL). Risks are organised into a hierarchy with blocks of behavioural, environmental and occupational, and metabolic risks at the first level of the hierarchy. The next level in the hierarchy includes nine clusters of related risks and two individual risks, with more detail provided at levels 3 and 4 of the hierarchy. Compared with GBD 2010, six new risk factors have been added: handwashing practices, occupational exposure to trichloroethylene, childhood wasting, childhood stunting, unsafe sex, and low glomerular filtration rate. For most risks, data for exposure were synthesised with a Bayesian metaregression method, DisMod-MR 2.0, or spatial-temporal Gaussian process regression. Relative risks were based on meta-regressions of published cohort and intervention studies. Attributable burden for clusters of risks and all risks combined took into account evidence on the mediation of some risks such as high body-mass index (BMI) through other risks such as high systolic blood pressure and high cholesterol. Findings: All risks combined account for 57·2% (95% uncertainty interval [UI] 55·8-58·5) of deaths and 41·6% (40·1-43·0) of DALYs. Risks quantified account for 87·9% (86·5-89·3) of cardiovascular disease DALYs, ranging to a low of 0% for neonatal disorders and neglected tropical diseases and malaria. In terms of global DALYs in 2013, six risks or clusters of risks each caused more than 5% of DALYs: dietary risks accounting for 11·3 million deaths and 241·4 million DALYs, high systolic blood pressure for 10·4 million deaths and 208·1 million DALYs, child and maternal malnutrition for 1·7 million deaths and 176·9 million DALYs, tobacco smoke for 6·1 million deaths and 143·5 million DALYs, air pollution for 5·5 million deaths and 141·5 million DALYs, and high BMI for 4·4 million deaths and 134·0 million DALYs. Risk factor patterns vary across regions and countries and with time. In sub-Saharan Africa, the leading risk factors are child and maternal malnutrition, unsafe sex, and unsafe water, sanitation, and handwashing. In women, in nearly all countries in the Americas, north Africa, and the Middle East, and in many other high-income countries, high BMI is the leading risk factor, with high systolic blood pressure as the leading risk in most of Central and Eastern Europe and south and east Asia. For men, high systolic blood pressure or tobacco use are the leading risks in nearly all high-income countries, in north Africa and the Middle East, Europe, and Asia. For men and women, unsafe sex is the leading risk in a corridor from Kenya to South Africa. Interpretation: Behavioural, environmental and occupational, and metabolic risks can explain half of global mortality and more than one-third of global DALYs providing many opportunities for prevention. Of the larger risks, the attributable burden of high BMI has increased in the past 23 years. In view of the prominence of behavioural risk factors, behavioural and social science research on interventions for these risks should be strengthened. Many prevention and primary care policy options are available now to act on key risks.

Time use clusters of New Zealand adolescents are associated with weight status, diet and ethnicity

OBJECTIVE: To describe New Zealand adolescent time use clusters and correlate cluster profiles. METHODS: Data were from the cross-sectional 2008/2009 National Survey of Children and Young People's Physical Activity and Dietary Behaviours, which surveyed a random sample of 10-16 year-old New Zealanders (study subset n=679). Time use data were collected using the Multimedia Activity Recall for Children and Adults, and collapsed into 17 age-adjusted variables for sex-specific cluster analysis. Cluster associations with socio-demographic, anthropometric, physical activity and dietary variables were analysed. RESULTS: Three time use clusters were discovered for both boys and girls. For boys, the Techno-active cluster was characterised by high levels of team sports and TV; the Quiet movers cluster by transport (active and passive) and quiet time; and the Social studious cluster by reading, study activities and social interaction. The boys' clusters were associated with ethnicity. The girls'Social sporty cluster was characterised by sports and social interaction; the Screenie tasker cluster by TV, computer, chores and work; and the Super studious cluster by reading, study and school-based activities. The girls' time use cluster membership was associated with weight status and serves of extra foods. CONCLUSIONS: Distinct sex-specific time use clusters and correlate profiles exist among NZ adolescents. IMPLICATIONS: These findings may assist the development of targeted time use interventions to improve adolescent health and well-being.

Clusters of suicides and suicide attempts: detection, proximity and correlates.

BACKGROUND: A suicide cluster is defined as a higher number of observed cases occurring in space and/or time than would typically be expected. Previous research has largely focused on identifying clusters of suicides, while there has been comparatively limited research on clusters of suicide attempts. We sought to identify clusters of both types of behaviour, and having done that, identify the factors that distinguish suicide attempts inside a cluster from those that were outside a cluster. METHODS: We used data from Western Australia from 2000 to 2011. We defined suicide attempts as admissions to hospital for deliberate self-harm and suicides as deaths due to deliberate self-harm. Using an analytic strategy that accounted for the repetition of attempted suicide within a cluster, we performed spatial-temporal analysis using Poisson discrete scan statistics to detect clusters of suicide attempts and clusters of suicides. Logistic regression was then used to compare clustered attempts with non-clustered attempts to identify risk factors for an attempt being in a cluster. RESULTS: We detected 350 (1%) suicide attempts occurring within seven spatial-temporal clusters and 12 (0.6%) suicides occurring within two spatial-temporal clusters. Both of the suicide clusters were located within a larger but later suicide attempt cluster. In multivariate analysis, suicide attempts by individuals who lived in areas of low socioeconomic status had higher odds of being in a cluster than those living in areas of high socioeconomic status [odds ratio (OR) = 29.1, 95% confidence interval (CI) = 6.3-135.5]. A one percentage-point increase in the proportion of people who had changed address in the last year was associated with a 60% increase in the odds of the attempt being within a cluster (OR = 1.60, 95% CI = 1.29-1.98) and a one percentage-point increase in the proportion of Indigenous people in the area was associated with a 7% increase in the suicide being within a cluster (OR = 1.07, 95% CI = 1.00-1.13). Age, sex, marital status, employment status, method of harm, remoteness, percentage of people in rented accommodation and percentage of unmarried people were not associated with the odds of being in a suicide attempt cluster. CONCLUSIONS: Early identification of and responding to suicide clusters may reduce the likelihood of subsequent clusters forming. The mechanisms, however, that underlie clusters forming is poorly understood.

Educar para a cidadania: Um projecto de investigação-acção em educação de infância

Pretendemos com este artigo dar a conhecer um trabalho final de Seminário realizado no âmbito do curso de Complementos de Formação de Educadores de Infância, em 2005-06, na Escola Superior de Educação de Viseu (Portugal) e que teve subjacente um projecto de investigação-acção desenvolvido num Jardim-de-Infância da rede pública. A questão central desta investigação foi a de determinar até que ponto a educadora, através da sua prática pedagógica, poderia contribuir para a aproximação no mesmo espaço educativo de crianças oriundas de culturas e etnias diferentes. A reflexão, baseada na autoscopia (autoavaliação feita pela própria das suas práticas pedagógicas) e na heteroscopia (avaliação feita pelos pares), através da observação de gravações vídeo e da utilização de uma grelha de registo de dados, permitiu à educadora questionar as suas atitudes no desempenho profissional, com vista à renovação da sua prática pedagógica.