Leitores e bibliotecas na Universidade do Minho

Os Serviços de Documentação da Universidade do Minho sofreram nos últimos anos os efeitos de uma extraordinária dinâmica de crescimento da própria Universidade onde se integram: novas instalações, novas tecnologias de informação e aumento substancial do fundo documental e do número de utilizadores. Cientes de que as bibliotecas universitárias devem adoptar uma gestão centrada no utilizador e não na organização, os autores apresentam os resultados de um inquérito aos utilizadores (alunos) das bibliotecas da Universidade do Minho, promovido para recolher dados objectivos que permitissem ajustar, ainda mais, o funcionamento das bibliotecas ao perfil de interesses dos seus leitores.The Documentation Services have experienced in the last years the effects of the significant growth of Minho University: new facilities, new technologies of information, substantial increase of stocks and users. Knowing that academic libraries must adopt a user centered management, the authors present the results of an inquiry to the users (students) of Minho University libraries, that they promoted to collect data in order to adjust library performance to user needs and interests

Agricultural Credit Interest Rate Equalization Policy: A Growth Subsidy?

The Brazilian Interest Rate Equalization System (IRES) subsidizes farmers by providing them with credit at lower than market interest rates. The objective of this research is to evaluate the IRES by comparing its monetary cost with its benefits as measured by Brazilian GDP growth. Estimates are carried out using input-output matrix. The results suggest that each Brazilian real spent by IRES to assist Brazilian family farms increases Brazilian GDP by R$1.75 and that each real spent to assist commercial farms increases GDP by R$ 3.57. The IRES is a subsidy that generates economic growth greater than its cost to society.IRES subsidy, growth, input-output matrix, Agricultural Finance, Q18, C67, O40, H81,

Energy efficiency of social housing existing buildings – a portuguese case study

The European energy performance building regulations, Directive 2002/91/EC - Energy Performance of Buildings Directive (EPBD) of the European Parliament and Council, require that new buildings present minimum standards of energy efficiency. Accordingly the Portuguese regulations require that new buildings comply with minimum requirements on the energy performance and must have an energy performance certification through witch an energy efficiency label is attributed to the housing. It also require that existing buildings must have an efficiency energy label when submitted to a commercial transaction or to a deep rehabilitation. To achieve this goal the study of energy performance of existing buildings must be done. As many essentials elements to determine the U-factor and other thermal parameters are unknown, Portugal developed a simplified methodology to achieve the thermal performance of existing buildings. The aim of this paper is to present the study of the energy performance of a set of social dwellings that were constructed during the decade of 80, constructed before the former building thermal comfort specifications came into force. During the study the referred methodology was applied and conclusions of the energy efficiency label obtained were put out as the encountered difficulties. The study also compares the results obtained by the simplified methodology and by the detailed methodology that is required by Portuguese building thermal comfort specifications

As fontes da nova lex mercatoria: O início de uma nova alquimia reflexiva - métodos e reflexos; fluxos e impulsos

We have witnessed, in recent years, the multiple manifestations of the New World Order, in the political, social, economic and financial plans. The new lex mercatoria represents the best expression these mutations in Transnational trade, by their transnational nature, dynamic, reveals itself intensely multifaceted, reason why constitutes a legal reality open-ended or in progress.In this study, we intend to develop, scientifically, what it designate be, in the plane of legal sources, the hard nucleus of new law merchant, their various embodiments and developments in the course of history. The fundamental aim of this research is through an systematization process allow jurists and interested in these subjects simplified access for a deep understanding of its nature and extent

Regeneração óssea vertical na reabilitação com implantes: resultados a longo prazo

Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina DentáriaOs procedimentos de Regeneração Óssea Guiada (ROG) visam fornecer ao paciente melhoras, a nível estético e funcional, aumentando o volume e disponibilidade óssea. Actualmente realizam-se procedimentos para aumento do rebordo ósseo com o intuito de possibilitar a colocação de implantes dentários e melhorar a sua estética. Será descrita nesta revisão bibliográfica a Regeneração Óssea Guiada (ROG) para aumento vertical do rebordo alveolar e posterior colocação de implantes, bem como a previsibilidade da técnica e as suas taxas de sucesso. Existem vários materiais disponíveis para a técnica de ROG vertical, porém as membranas de politetrafluoroetileno expandido não-reabsorvível (PTFE-e) com reforço de titânio em associação com enxerto (1:1) autógeno e mineral de osso bovino desproteinizado (DBBM) constituem, actualmente, a primeira escolha quando se pretende o aumento ósseo vertical. A ROG para aumento vertical, apresenta boas taxas de sucesso e previsibilidade, contudo necessita de um operador com experiencia pois é uma técnica de muita exigência. Esta técnica pode ser realizada prévia ou em simultâneo com a colocação dos implantes.Guided Bone Regeneration (GBR) procedures aim to provide the patient with aesthetical and functional improvements, increasing the bone volume and availability. Currently, procedures to increase the bone ridge are undertaken with the objective of allowing the placement of dental implants and improve their aesthetical appeal. Guided Bone Regeneration (GBR) for the vertical augmentation of the alveolar ridge and consequent implant placement will be described in this bibliographical review, as well as the predictability of the technique and its success rates. There are several materials available for the vertical GBR technique, however the membranes of expanded non-resorbable polytetrafluoroethylene (PTFE-e) with titanium reinforcement in association with autogenous graft (1:1) and deproteinized bovine bone mineral (DBBM) currently represent the first choice when a vertical bone augmentation is intended. The GBR for vertical augmentation features good success rates and predictability, however it requires an experienced operator, as it is a demanding technique. This can be performed previously or simultaneously with the placement of implants

Eco­Marathon 2019 Prototype

Over the last 35 years, Shell has organized a student programme focused on road vehicles energy optimisation called Shell Eco¬Marathon. The competition has seen over the years a lot of improvement in design choices which led to new records in energy efficiency. At UBI, a similar story has happened since its first participation in the competition in 2014. In 2019, in its third vehicle iteration, the AERO@UBI03 team won the Circular Economy Award and achieved 612 km/kW h at the main event, the 6th place in the battery electric prototype category. In this work, a full aerodynamic analysis using Computational Fluid Dynamics, with the software OpenFOAM, was performed to evaluate the flow, pressure contours, drag and lift using the k-?SST turbulence model and wall functions available in the OpenFOAM software. It was discovered that the vehicle produces a four vortices wake, two generated by the front wheels fairings and the other two by the geometry of the vehicle. It was also noticed that the stagnation point was in a not optimal position as it creates a pressure drop when the flow moves to the underside of the vehicle. The prototype has a SCD of 0.03227 m2 and a SCL of -0.03835 m2 . A few more studies were conducted by adjusting the height of the vehicle as well as the angle of attack. These showed that improvements were possible specially in the fairings design in order to reduce the existent downforce.Nos últimos 35 anos, a Shell tem organizado uma competição destinada a alunos com foco na otimização de veículos para a minimização do consumo de energia de veículos rodoviários, denominada Shell Eco¬Marathon. O concurso viu ao longo dos anos melhoria progressiva nas escolhas de design, o que levou a novos recordes em eficiência energética. Na UBI, uma história semelhante aconteceu desde a primeira participação da equipa Aero@UBI na competição, em 2014. Em 2019, na sua terceira iteração de veículos, a equipa AERO@UBI03 conquistou o Prémio de Economia Circular e alcançou 612 km/kW h no evento principal, o sexto lugar na categoria de protótipo elétrico a bateria. Neste trabalho, foi realizada uma análise aerodinâmica completa ao protótipo Aero@UBI03 recorrendo à Dinâmica de Fluidos Computacional, com o software OpenFOAM, para avaliar o desempenho aerodinâmico do veículo na forma de áreas de arrasto e sustentação e os detalhes sobre o escoamento que possam motivar alterações futuras com vista à redução do consumo energético. Foi utilizado o modelo de turbulência k-?SST e as funções de parede disponíveis no software OpenFOAM. Foi descoberto que o veículo produz uma esteira de quatro vórtices, dois gerados pelas carenagens das rodas dianteiras e os outros dois pelas mesmas carenagens mas no fundo do veículo. Também foi notado que o ponto de estagnação não parece estar numa posição ideal, pois cria uma queda de pressão excessiva na parte inferior do veículo. O protótipo resulta num SCD de 0, 03227 m2 e um SCL de -0, 03835 m2 . Mais estudos foram realizados ajustando a altura do veículo, bem como o ângulo de ataque. Estes mostraram que melhorias são possíveis, especialmente no desenho das carenagens, a fim de reduzir a sustentação negativa existente para um valor nulo

Touchless autopsy report

Dissertação para obtenção do Grau de Mestre em Engenharia BiomédicaThis dissertation is a response to the most uncomfortable tasks in the medical examiners work, the tasks required to prepare an autopsy report. This is one of their biggest and most frequent limitations. The new technological tools of person-machine interface in the market motivated the realization of this project. This project is developed in Java, and allows a medical examiner to perform an autopsy report without requiring physical contact with the computer. Thus, this work has the following advantages: it does not require that the medical examiner removes his gloves whenever he needs to make an annotation, also, there is no need to transcribe information from paper format to a digital format, furthermore, it makes the process of developing the autopsy report simple having less likelihood of contaminate the material. This application was designed and developed in order to facilitate their use through voice commands, using the Java Speech and gestures detected by Leap Motion. The application operation is very satisfactory and was a source of enthusiasm to the medical examiners that accompanied the project, since this work has created a useful tool for their daily work