HPC management and engineering in the hybrid cloud

The evolution and maturation of Cloud Computing created an opportunity for the emergence of new Cloud applications. High-performance Computing, a complex problem solving class, arises as a new business consumer by taking advantage of the Cloud premises and leaving the expensive datacenter management and difficult grid development. Standing on an advanced maturing phase, today’s Cloud discarded many of its drawbacks, becoming more and more efficient and widespread. Performance enhancements, prices drops due to massification and customizable services on demand triggered an emphasized attention from other markets. HPC, regardless of being a very well established field, traditionally has a narrow frontier concerning its deployment and runs on dedicated datacenters or large grid computing. The problem with common placement is mainly the initial cost and the inability to fully use resources which not all research labs can afford. The main objective of this work was to investigate new technical solutions to allow the deployment of HPC applications on the Cloud, with particular emphasis on the private on-premise resources – the lower end of the chain which reduces costs. The work includes many experiments and analysis to identify obstacles and technology limitations. The feasibility of the objective was tested with new modeling, architecture and several applications migration. The final application integrates a simplified incorporation of both public and private Cloud resources, as well as HPC applications scheduling, deployment and management. It uses a well-defined user role strategy, based on federated authentication and a seamless procedure to daily usage with balanced low cost and performance.

Potential of incorporating ocean currents in fishing vessels

The fishing sector has been suffering a strong setback, with reduction in fishing stocks and more recently with the reduction of the fishing fleet. One of the most important factors for this decrease, is related to the continuous difficulty to find fish with quality and quantity, allowing the sector work constantly all year long. However other factors are affecting negatively the fishing sector, in particular the huge maintenance costs of the ships and the high diary costs that are necessary for daily work of each vessel. One of the main costs associated with daily work, is the fuel consumption. As an example, one boat with 30 meters working around 17 hours every day, consumes 2500 liters of fuel/day. This value is very high taking into account the productivity of the sector. Supporting this premise was developed a project with the aim of reducing fuel consumption in fishing vessels. The project calls “ShipTrack” and aims the use of forecasts of ocean currents in the routes of the ships. The objective involves the use of ocean currents in favor, and avoiding ocean currents against, taking into account the course of the ship, in order to reduce fuel consumption and increase the ship speed. The methodology used underwent the creation of specific Software, in order to optimize routes, taking into account the forecasts of the ocean currents. These forecasts are performed using numerical modelling, methodology that become more and more important in all communities, because through the modeling, it can be analyzed, verified and predicted important phenomena to all the terrestrial ecosystem. The objective was the creation of Software, however its development was not completed, so it was necessary a new approach in order to verify the influence of the ocean currents in the navigation of the fishing ship "Cruz de Malta". In this new approach, and during the various ship routes it was gathering a constant information about the instant speed, instantaneous fuel consumption, the state of the ocean currents along the course of the ship, among other factors. After 4 sea travels and many routes analyzed, it was possible to verify the influence of the ocean currents in the Ship speed and in fuel consumption. For example, in many stages of the sea travels it was possible to verify an increase in speed in zones where the ocean currents are in favor to the ships movements. This incorporation of new data inside the fishing industry, was seen positively by his players, which encourages new developments in this industry.

Relação supervisiva e desenvolvimento da identidade profissional: acompanhamento das práticas clínicas dos estudantes de enfermagem

Este estudo centrou-se num Curso de Licenciatura em Enfermagem e teve como objetivo compreender a influência da relação supervisiva no desenvolvimento da identidade profissional dos estudantes. Os eixos estruturantes que suportam esta investigação e que concorrem para a definição do seu objeto de estudo articulam-se em torno da relação supervisiva, do desenvolvimento de competências profissionais e do desenvolvimento da identidade pessoal e profissional em contexto clínico. A formação desenvolvida através da prática clínica destina-se a preparar indivíduos de acordo com a atual realidade socioprofissional, onde os sujeitos, independentemente da singularidade de cada um, desenvolvem saberes adquiridos em sala de aula. Quando comparada com o espaço escolar, a aprendizagem em contexto clínico é condicionada por fatores que se caraterizam por maior imprevisibilidade e obriga frequentemente o estudante a confrontar-se com situações únicas e impares. A identidade dos estudantes torna-se assim construída e vivida a partir de um conjunto de dimensões que ocorrem no decurso das vivências clínicas. Metodologicamente optou-se por um estudo etnográfico no âmbito do paradigma qualitativo, numa abordagem longitudinal segundo a lógica do estudo de caso. A natureza dos dados a recolher englobou ainda o recurso a procedimentos de natureza quantitativa. Como técnica de recolha de dados recorremos à observação participante, entrevistas semiestruturadas e questionários. O estudo desenvolveu-se numa Escola Superior de Enfermagem da Zona Norte do país e fizeram parte da população 69 estudantes de uma turma de segundo ano, quatro tutores e um professor. O plano de estudo da referida escola está organizado de forma a que a aprendizagem dos estudantes seja progressivamente integradora de saberes interligando a componente teórica com a componente prática. Assim, os ensinos clínicos estão distribuídos entre o 2º e o 4º ano. Da análise e discussão dos dados e subsequentes conclusões ressalta que, quer a relação supervisiva, quer os contextos clínicos, foram influenciadores do desenvolvimento de competências profissionais, bem como da identidade pessoal e profissional dos estudantes. Verificamos que os dois contextos clínicos estudados – medicina e cirurgia – favoreceram o desenvolvimento de competências distintas, no entanto complementares. Tornou-se visível que, os supervisores do contexto de medicina, possuidores de uma visão holística da profissão de enfermagem, promoveram nos estudantes uma visão integradora do doente, resultante de uma contínua atitude reflexiva sobre a Pessoa Humana. Por sua vez, no contexto de cirurgia, caraterizada por intervenções mais invasivas e mais centradas no tratar, as competências mais valorizadas pelos tutores, embora que de uma forma não verbalmente assumida, foram do domínio técnicocientífico, com especial relevo pelas competências instrumentais.