On universal central extensions of Hom-Leibniz algebras

In the category of Hom-Leibniz algebras we introduce the notion of Hom-corepresentation as adequate coefficients to construct the chain complex from which we compute the Leibniz homology of Hom-Leibniz algebras. We study universal central extensions of Hom-Leibniz algebras and generalize some classical results, nevertheless it is necessary to introduce new notions of α-central extension, universal α-central extension and α-perfect Hom-Leibniz algebra due to the fact that the composition of two central extensions of Hom-Leibniz algebras is not central. We also provide the recognition criteria for these kind of universal central extensions. We prove that an α-perfect Hom-Lie algebra admits a universal α-central extension in the categories of Hom-Lie and Hom-Leibniz algebras and we obtain the relationships between both of them. In case α = Id we recover the corresponding results on universal central extensions of Leibniz algebras.

Um olhar sobre...as principais alterações ao regime do processo de inventário

Com a Lei n.º 23/2013, de 5 de março foram introduzidas importantes alterações ao regime jurídico do processo de inventário, tal como o conhecíamos. Na verdade, e em termos rigorosos, tratou-se da implementação de um novo regime do processo de inventário, aprovado pela referida lei, e não de uma remodelação do já existente. Dessas alterações, a transferência de competência para efetuar o processamento dos atos e termos do processo de inventário, que se verificou dos Juízes para os Notários é, do nosso ponto de vista, a principal. Não obstante, outras alterações se sobressaem e caracterizam o novo regime. O legislador manteve intacto o regime do patrocínio judiciário até então vigente, continuando a ser obrigatória a constituição de advogado para se suscitar ou discutir questões de direito. A análise dessa obrigatoriedade permite-nos analisar o papel do solicitador nesta espécie de processos.

O Pinguim Pingalim e o Leão Tião - estudo e construção de narrativas visuais no álbum infantil ilustrado

A ilustração infantil está na base deste nosso projecto. Sendo esta uma área em crescimento na actualidade, e que muito nos motiva, foi fundamental estudar alguns aspectos sobre a história da ilustração infantil em Portugal e também abordar o processo de concepção, criação e publicação de um álbum infantil ilustrado. No âmbito deste projecto desenvolvemos assim uma parte teórica e também uma parte prática, que consistiu na criação de um livro infantil ilustrado: O Pinguim Pingalim e o Leão Tião, com texto de Lurdes Breda e música de João Conde. O álbum foi concebido tendo por base o estudo das possibilidades da narrativa visual e sua articulação com a narrativa escrita e sonora. O álbum ilustrado, destinado a uma faixa etária dos 6 aos 10 anos, foi apresentado e trabalhado junto das crianças, efectuando-se a análise da recepção da obra junto do público.

Ecodesign e usabilidade no redesign de produtos de usos quotidiano

A crescente saturação dos mercados com produtos similares aos já existentes ou cuja adaptação ao utilizador se revelou ineficiente, torna pertinente a elaboração de projectos que se traduzam em produtos que, efectivamente, tragam vantagem competitiva e, consequentemente, contribuam para o desenvolvimento e bem estar tanto da sociedade como do ecossistema. Como tal, a actividade do design deve assumir uma posição estratégica por forma a conseguir conceber soluções que preservem tanto quanto possível, os recursos naturais ao mesmo tempo que melhoram os contextos físicos e sociais dos seus utilizadores. Assim, com este trabalho pretende-se elaborar uma estratégia para conseguir um processo de desenvolvimento de produto optimizado que englobe, de igual forma, as preocupações ambientais e o utilizador. Portanto, numa primeira fase são revistos os princípios de ecodesign, segue-se o estudo das áreas vocacionadas para o utilizador, que dizem respeito a ergonomia e, consequentemente, a usabilidade. E por fim é formulada uma metodologia projectual adaptada dos estudos revistos, que pretende dar resposta a este sistema de projecto optimizado. A metodologia é depois validada, com a sua implementação num projecto real, de redesign de um aspirador de uso quotidiano. Esta metodologia foi dividida em duas fases principais de pesquisa: (i) o reconhecimento das necessidades reais dos utilizadores, bem como problemas associados ao produto, por meio de pesquisas e testes de usabilidade (N=120), e (ii) a quantificação do impacto ambiental do produto (através do método do eco-indicador 99). Os dados globais permitem definir os requisitos do produto e delinear os critérios a serem incorporados no redesign do produto e também as medidas para melhorar a usabilidade que foram consistentes com as soluções de concepção ecológica.

Residents’ perspectives on tourism impacts of portuguese world heritage historic centers: Angra do Heroísmo and Évora

The aim of this study is twofold. First, the study analyzes local community perspectives of the importance of the World Heritage Site (WHS) classification of the historic centers of Angra do Heroísmo and Évora. Second, the study analyzes local residents’ perceived tourism impacts on the municipalities of Angra do Heroísmo and Évora. The methodology comprises quantitative research based on a self-administered survey applied to convenience samples of local residents of the two Portuguese municipalities in 2014. The main results reveal that local residents have a strongly positive perception of the WHS designation in both municipalities. With regard to the perceived tourism impacts, residents from Angra do Heroísmo have a stronger agreement about the impacts of tourism on their city than the residents of Évora, except for the negative social and cultural impacts. The comparison of the mean scores of these impacts across residents that live near and far from the historic centers reveals that the most valued and least valued impacts in the three categories of impacts (economic, social and cultural, and environmental) are common to all groups of residents. Nevertheless, residents living in or near the historic center of Angra do Heroísmo have higher means in the majority of tourism impacts (in all categories), with only one negative impact to concern the majority of respondents. Among the residents from Évora, residents living in or near the historic center have higher means in the majority of economic impacts but lower means in almost social and cultural impacts. With regard to the environmental impacts, residents living in or near the historic center have higher means scores in the positive impacts and lower means scores in the negative environmental impacts.

Application of Gage R&R methodology for improving the training and evaluation of automatic optical inspection machine operators

The current level of demand by customers in the electronics industry requires the production of parts with an extremely high level of reliability and quality to ensure complete confidence on the end customer. Automatic Optical Inspection (AOI) machines have an important role in the monitoring and detection of errors during the manufacturing process for printed circuit boards. These machines present images of products with probable assembly mistakes to an operator and him decide whether the product has a real defect or if in turn this was an automated false detection. Operator training is an important aspect for obtaining a lower rate of evaluation failure by the operator and consequently a lower rate of actual defects that slip through to the following processes. The Gage R&R methodology for attributes is part of a Six Sigma strategy to examine the repeatability and reproducibility of an evaluation system, thus giving important feedback on the suitability of each operator in classifying defects. This methodology was already applied in several industry sectors and services at different processes, with excellent results in the evaluation of subjective parameters. An application for training operators of AOI machines was developed, in order to be able to check their fitness and improve future evaluation performance. This application will provide a better understanding of the specific training needs for each operator, and also to accompany the evolution of the training program for new components which in turn present additional new difficulties for the operator evaluation. The use of this application will contribute to reduce the number of defects misclassified by the operators that are passed on to the following steps in the productive process. This defect reduction will also contribute to the continuous improvement of the operator evaluation performance, which is seen as a quality management goal.

Economic analysis of occupational risk prevention: a case study in a textile company

Work accidents affect business and society as a whole. Fewer accidents mean fewer sick leaves, which results in lower costs and less disruption in the production process, with clear advantages for the employer. But workers and their households bear also a significant burden following a work accident, only partially compen-sated by insurance systems. Furthermore, the consequences of work accidents to the State and Society need also to be considered. When an organization performs an integrated risk analysis in evaluating its Occupational Health and Safety Management System, several steps are suggested to address the identified risk situations. Namely, to avoid risks, a series of preventive measures are identified. The organization should make a detailed analysis of the monetary impact (positive or negative) for the organization of each of the measures considered. Particularly, it is also important to consider the impact of each measure on society, involving an adequate eco-nomic cost-benefit analysis. In the present paper, a case study in a textile finishing company is presented. The study concentrates on the dyeing and printing sections. For each of the potential risks, several preventive measures have been identified and the corresponding costs and benefits have been estimated. Subsequently, the Benefit/Cost ratio (B/C) of these measures has been calculated, both in financial terms (from the organisa-tion’s perspective) and in economic terms (including the benefits for the worker and for the Society). Results show that, while the financial analysis in terms of the company does not justify the preventive measures, when the externalities are taken into account, the B/C ratio increases significantly and investments are fully justified.

Developments regarding the integration of the occupational safety and health with quality and environment management systems

Nanotechnology is the manipulation of matter on na almost atomic scale to produce new structures, materials, and devices. As potential occupational exposure to nanomaterials (NMs) becomes more prevalente, it is importante that the principles of medical surveillance and risk management be considered for workers in the nanotechnology industry.However, much information about health risk is beyond our current knowledge. Thus, NMs presente new challenges to understanding, predicting, andmanageing potential health risks. First, we briefly describe some general features of NMs and list the most importante types of NMs. This review discusses the toxicological potential of NMs by comparing possible injury mechanism and know, or potentially adverse, health effects. We review the limited research to date for occupational exposure to these particles and how a worker might be exposed to NMs. The principles of medical surveillance are reviewed to further the discussion of occupational health surveillance are reviewed to further the discussion of occupational health surveillance for workers exposed to NMs. We outlinehow occupational health professionals could contribute to a better knowledge of health effects by the utilization of a health surveillance program and by minimizing exposure. Finally, we discuss the early steps towards regulation and the difficulties facing regulators in controlling potentially harmful exposures in the absence of suficiente scientific evidence.

Integration of risk management in occupational health and safety systems

Risk management can be considered as part of the Occupational Health and Safety System (OHS) of an organization and can be used to develop and implement the OHS policy and manage the associated risks. The success of the integration of risk management in OHS depends on both technical and human aspects. Thus, this paper presents and discusses the case of a company working in the area of solid waste treatment. This company was certified in 2009 with an Integrated Management Systems for Quality, Environment, Occupational Health and Safety. The evolution of accidents before and after the implementation of the integrated system was analysed and a questionnaire was used to capture the perceptions of the technicians on the risk management system. The analysis of the findings showed that the frequency of accidents increased since 2009 but the severity has been reduced. Several interrelated causes and consequences were analysed and discussed. Furthermore, the analysis of the opinions of the company’s technicians permitted to highlight some important aspects on the integration of risk management in the OHS system of the company. In line with this discussion some hypothesis have been formulated.

Financial and economic analysis of prevention of needlesticks in the hospital sector

This paper discusses the financial and economic analysis of prevention of needlestick accidents related to Occupational Health and Safety projects and presents the application to a case study involving a Hospital.

O skate como estímulo para a criação artística

O presente trabalho de projecto pretende, em primeira instância, a análise da cultura do Skate enquanto estímulo de novas atitudes ou movimentos num contexto artístico que engloba diversas disciplinas. Esta escolha possibilitou um estudo singular a par da produção criativa bem como pela dinamização e exploração de novos conceitos. É relevante a apresentação deste percurso, reflectindo o que foi concebido pela ambição de evidenciar este projecto enquanto tributo a uma cultura que está em contínua expressão. Deste trabalho de projecto faz parte um segundo volume que documenta conteúdos desenvolvidos no âmbito do projecto Deka.

O contributo da rotoscopia na relação entre cinema de animação e artes plásticas

A par de uma curta-metragem de animação intitulada Tele-sofia, o prosente trabalho enfatizará a importância do desenho como base das artes plásticas. Partindo deste pressuposto, a identificação, compreensão e inclusão das componentes estruturais do desenho poderão ser fortes adjuvantes na reconversão de práticas tendencialmente mais tecnologizadas em poéticas dos materiais e do atelier, distintivas das artes plásticas. Assim, na direta medida em que a rotoscopia se fundamente no desenho responsivo - como uma extensão das possibilidades do desenho de modelo - ir-se-á integrando no campo artístico, tornando a obra resultante numa animação de experiências plásticas. Afinal, o desenho não se confina à perfeição reprodução mecânica da realidade - a mimesis - ele requer interpretações idiossincráticas e uma profunda empatia com o referente, dados apenas registados por um instrumento sensível: o artista.

A Travel Optimization System for Academic Environments

Carpooling initiated in America in the 1970s due to the oil crisis. However, over the past years, carpooling has increased significantly across the world. Some countries have created a High Occupancy Vehicle (HOV) lane to encourage commuters not to travel alone. In additional, carpool websites has been developed to facilitate the connection between the commuters, making it possible to create a compatible match in a faster and efficient manner. This project focuses on carpooling, especially in an academic environment since younger people are more likely to choose carpool. Initially, an intense research was made to examine carpool studies that occurred all over the world, following with a research of higher education institutes that use carpooling as a transportation mode. Most websites created carpools by targeting people from a specific country. These commuters have different origins and destinations making it more complicated to create compatible matches. The objective of this project is to develop a system helping teachers and students from an academic environment to create carpool matches. This objective makes it easier to create carpools because these students and teachers have the same destination. During the research, it was essential to explore, as many as possible, existing carpool websites that are available across the world. After this analysis, several sketches were made to develop the layout and structure of the web application that’s being implemented throughout the project. Once the layout was established, the development of the web application was initiated. This project had its ups and downs but it accomplished all the necessary requirements. This project can be accessed on the link: http://ipcacarpool.somee.com. Once the website was up and running, a web-based survey was developed to study the reasons that motivate people to consider carpooling as an alternative to driving alone. To develop this survey was used a tool called Survey Planet. This survey contained 408 respondents, which 391 are students and 17 are teachers. This study concludes that a majority of the respondents don’t carpool, however they will consider carpooling if there was a dedicated parking space. A majority of the respondents that carpool initiated less than a year ago, indicating that this mean of transportation is recent.

O desenho de videojogos na motivação de pacientes com necessidades de reabilitação fisioterapêutica

O presente documento descreve o desenvolvimento de um protótipo de jogo sério tridimensional para ajudar pacientes com necessidades de reabilitação fisioterapêutica a prosseguir a sua recuperação com motivação e entusiasmo através da inclusão de ludicidade. Para isso apostou-se em características do design de videojogos comerciais que potenciam a imersão e na interação com personagens e ambientes virtuais aplicados a um protótipo. Partindo do estudo do papel do desenho no desenvolvimento de videojogos, criou-se um conceito de jogo sério em ambiente 3D - argumento, personagens e cenários que, adaptado às motivações e procurando uma maior imersão de pacientes (jogadores) com necessidades de recuperação fisioterapêutica, ambiciona aumentar os níveis de eficácia dos programas de reabilitação física na persecução e melhoria dos tratamentos que são, em vários dos casos estudados, monótonos e repetitivos e, portanto, pouco apelativos para o doente (jogador). Aqui se descrevem as fases de game design e a criação de conteúdos visuais para um jogo sério focado na reabilitação fisioterapêutica de nome PhysioVinci. O primeiro nível do jogo está terminado e foi já testado em ambiente de laboratório com pessoas saudáveis para validar a atividade de jogo e verificar a existência de erros. Estas primeira fase de testes revelou que os jogadores não demostram nenhuma dificuldade, seja na compreensão do desempenho do jogo, seja na eficácia dos resultados atingidos. Simultaneamente, a equipa de desenvolvimento está já a trabalhar nos restantes níveis de jogo.

Performance of european socially responsible funds during market crises: evidence from France

This paper investigates the performance, investment styles andmanagerial abilities of French socially responsible investment (SRI) funds investing in Europe during crisis and non-crisis periods. Our results show that SRI funds significantly underperformcharacteristics-matched conventional funds during non-crisis periods, but match the performance of their peers duringmarket downturns. The underperformance of SRI funds during good economic states is driven by funds that use negative screens, since funds that use only positive screens performsimilarly to conventional funds across differentmarket conditions. SRI and conventional funds showsignificant differences in risk exposures during non-crisis periods but exhibit much more similar investment styles during crises. Furthermore,we find little evidence of significant differences inmanagerial abilities during bad economic states. Yet, during non-crisis periods, SRI and conventional fund managers exhibit significantly different style-timing abilities and these differences are also related to screening strategies.