Technical and economic resources management in smart grids using heuristic optimization methods

Intensive use of Distributed Generation (DG) represents a change in the paradigm of power systems operation making small-scale energy generation and storage decision making relevant for the whole system. This paradigm led to the concept of smart grid for which an efficient management, both in technical and economic terms, should be assured. This paper presents a new approach to solve the economic dispatch in smart grids. The proposed methodology for resource management involves two stages. The first one considers fuzzy set theory to define the natural resources range forecast as well as the load forecast. The second stage uses heuristic optimization to determine the economic dispatch considering the generation forecast, storage management and demand response

A responsabilidade social e ética nas organizações: estudo de caso na indústria farmacêutica

Mestrado em Contabilidade

Creating shared value – a nova abordagem estratégica de Responsabilidade social empresarial

Dissertação de Mestrado apresentada ao Instituto Supeior de Contabilidade e Administração do Porto para a obtenção do grau de Mestre em Marketing Digital, sob a orientação da Doutora Sandrina Francisca Teixeira

Economic burden of expected epidemiological changes in diseases related to tobacco, Mexico

OBJECTIVE: To determine health care costs and economic burden of epidemiological changes in diseases related to tobacco consumption. METHODS: A time-series analysis in Mexico (1994-2005) was carried out on seven health interventions: chronic obstructive pulmonary diseases, lung cancer with and without surgical intervention, asthma in smokers and non-smokers, full treatment course with nicotine gum, and full treatment course with nicotine patch. According with Box-Jenkins methodology, probabilistic models were developed to forecast the expected changes in the epidemiologic profile and the expected changes in health care services required for selected interventions. Health care costs were estimated following the instrumentation methods and validated with consensus technique. RESULTS: A comparison of the economic impact in 2006 vs. 2008 showed 20-90% increase in expected cases depending on the disease (p<0.05), and 25-93% increase in financial requirements (p<0.01). The study data suggest that changes in the demand for health services for patients with respiratory diseases related to tobacco consumption will continue showing an increasing trend. CONCLUSIONS: In economic terms, the growing number of cases expected during the study period indicates a process of internal competition and adds an element of intrinsic competition in the management of preventive and curative interventions. The study results support the assumption that if preventive programs remain unchanged, the increasing demands for curative health care may cause great financial and management challenges to the health care system of middle-income countries like Mexico.

A dimensão política da segurança para o ciberespaço na União Europeia : a agenda digital, a estratégia de cibersegurança e a cooperação UE-OTAN

Mestrado em Relações Internacionais.

A violência doméstica na Região Autónoma dos Açores : estudo sócio-criminal

A presente edição resulta integralmente do projecto realizado entre Janeiro de 2009 e Fevereiro de 2010 pelo Centro de Estudos Sociais da Universidade dos Açores e intitulado Estudo Sócio-criminal sobre a Violência Doméstica na Região autónoma dos Açores. Tratou-se de uma investigação financiada pelo Ministério da Administração Interna, através da Direcção-Geral de Administração Interna, que teve como objectivo geral actualizar e aprofundar o quadro de referência do conhecimento sobre a violência doméstica na Região Autónoma dos Açores. O excepcional trabalho desenvolvido pela equipa de investigadores coordenados pelas Professoras Gilberta Rocha e Piedade Lalanda veio a materializar-se num relatório final, cuja dimensão, como se antecipara, é insusceptível de publicação alargada. Assim, desde logo se admitiu que esse relatório de pesquisa deveria ficar disponível em formato digital, para consulta através da web (no sítio da DGAI e da própria Universidade), e que uma versão mais sintética, bilingue (em Português e Inglês), seria objecto de publicação em papel e posterior disseminação junto da comunidade científica e técnica, bem como junto das Forças de Segurança. Para efeitos desta publicação solicitou-se ao Doutor António Manuel Marques, da Escola Superior de Saúde do Instituto Politécnico de Setúbal, a tarefa de sistematizar o excepcional estudo elaborado pelo Centro de Estudos Sociais da Universidade dos Açores, e de colaborar, conjuntamente com a DGAI, na edição da respectiva versão bilingue. Cabe agradecer a todos os que deram o seu melhor para a realização, quer da pesquisa, quer da presente edição, numa lógica de trabalho cola­borativo que importa estimular.

A contabilidade até à harmonização contabilística: as grandes mudanças do SNC e seus impactos

Mestrado em Contabilidade

A importância da informação contabilística multidimensional face às necessidades dos múltiplos stakeholders: estudo de caso da entidade BETA, SROC, Lda.

Mestrado em Contabilidade

A responsabilidade social e as PME: as práticas de SER das microempresas

Mestrado em Contabilidade e Gestão das Instituições Financeiras

Avaliação da performance empresarial: o economic value added (EVA®) e a sua relação com o valor da empresa

Mestrado em Contabilidade e Gestão das Instituições Financeiras

Economic, environmental and mixed objective functions in non-linear process optimization using simulated annealing and tabu search

Screening of topologies developed by hierarchical heuristic procedures can be carried out by comparing their optimal performance. In this work we will be exploiting mono-objective process optimization using two algorithms, simulated annealing and tabu search, and four different objective functions: two of the net present value type, one of them including environmental costs and two of the global potential impact type. The hydrodealkylation of toluene to produce benzene was used as case study, considering five topologies with different complexities mainly obtained by including or not liquid recycling and heat integration. The performance of the algorithms together with the objective functions was observed, analyzed and discussed from various perspectives: average deviation of results for each algorithm, capacity for producing high purity product, screening of topologies, objective functions robustness in screening of topologies, trade-offs between economic and environmental type objective functions and variability of optimum solutions.

O crime de fraude fiscal: o impacto na receita pública do Estado

Orientador: Doutor, José Domingos Silva Fernandes

Newspaper coverage impact on cultural events: Porto 2001 and Guimarães 2012: European Cultural Capitals

Artigo baseado na comunicação proferida no 1st International Symposium on Media Studies, realizado na Akdeniz Universitesi Yayınları, Antalya, Turquia, 21-23 de novembro de 2013

Food consumption, physical activity and socio-economic status related to BMI, waist circumference and waist-to-height ratio in adolescents

Objective: To examine the association between obesity and food group intakes, physical activity and socio-economic status in adolescents. Design: A cross-sectional study was carried out in 2008. Cole’s cut-off points were used to categorize BMI. Abdominal obesity was defined by a waist circumference at or above the 90th percentile, as well as a waist-to-height ratio at or above 0?500. Diet was evaluated using an FFQ, and the food group consumption was categorized using sex-specific tertiles of each food group amount. Physical activity was assessed via a self-report questionnaire. Socio-economic status was assessed referring to parental education and employment status. Data were analysed separately for girls and boys and the associations among food consumption, physical activity, socio-economic status and BMI, waist circumference and waist-to-height ratio were evaluated using logistic regression analysis, adjusting the results for potential confounders. Setting: Public schools in the Azorean Archipelago, Portugal. Subjects: Adolescents (n 1209) aged 15–18 years. Results: After adjustment, in boys, higher intake of ready-to-eat cereals was a negative predictor while vegetables were a positive predictor of overweight/ obesity and abdominal obesity. Active boys had lower odds of abdominal obesity compared with inactive boys. Boys whose mother showed a low education level had higher odds of abdominal obesity compared with boys whose mother presented a high education level. Concerning girls, higher intake of sweets and pastries was a negative predictor of overweight/obesity and abdominal obesity. Girls in tertile 2 of milk intake had lower odds of abdominal obesity than those in tertile 1. Girls whose father had no relationship with employment displayed higher odds of abdominal obesity compared with girls whose father had high employment status. Conclusions: We have found that different measures of obesity have distinct associations with food group intakes, physical activity and socio-economic status.

Aplicação prática dos pilares da gestão numa fundação: melhoria de processos e procedimentos

Mestrado em Controlo de Gestão e dos Negócios