Diagnóstico da rede de águas pluviais nas bacias urbanas do setor poente de Aveiro = (Santiago – Universidade)

Mestrado em Engenharia do AmbienteO crescimento das áreas urbanas provoca um aumento da impermeabilização do solo que por sua vez conduz ao aumento dos caudais de escoamento superficial das águas pluviais levando assim à ocorrência de inundações mais frequentes. No caso da cidade de Aveiro as fortes precipitações que por vezes ocorrem aliada à morfologia atual de algumas áreas da cidade originam todos os anos situações de alagamento. Neste projeto, é feita a identificação da rede de águas pluviais existente no sector poente da cidade de Aveiro na área compreendida entre o bairro de Santiago e a Universidade. Recorrendo ao modelo Storm Water Management Model (SWMM) é feita uma simulação dos cudais resultantes a um evento de precipitação intensa, de forma a identificar os pontos críticos existentes. Dos resultados da simulação é possível concluir que a maior parte dos pontos críticos estão situados entre a Avenida da Universidade e o campus Universitário. Por fim, são apresentadas duas soluções para tentar eliminar os pontos críticos identificados, sendo que essas soluções têm como ideia base a utilização do esteiro de S.Pedro como um novo ponto de descarga, eliminando assim a ligação que existe entre o bairro de Santiago e a Universidade. Com a simulação e avaliação das soluções conclui-se que as soluções propostas são viáveis e que minimizam e em certos casos eliminam os pontos críticos da área de estudoThe growth of urban areas causes an increase in the waterproofing of the soil, which leads to increase the flows of surface runoff from rainwater, leading to the occurrence of more frequent floods. In the case of the city of Aveiro the strong precipitations that sometimes occur, allied to the current morphology of some areas of the city, originate situations of flooding every year. In this project, identifies the existing rainwater network in the western sector of the city of Aveiro in the area between Santiago neighborhood and the University. Then, using the Storm Water Management Model (SWMM), a simulation is performed for an intense precipitation event to identify the existing critical points. From the results of the simulation it’s possible to conclude that most of the critical points are located between the University Avenue and the University campus. Finally, two solutions are presented to try to eliminate the identified critical points, and these solutions are based on the use of S.Pedro stele as a new point of discharge, thus eliminating the connection between the Santiago district and the University. With the simulation and evaluation of the solutions it’s concluded that the proposed solutions are feasible and that they minimize and, in some cases, eliminate the critical points of the study area

Portuguese recommendations for the use of ultrasound in rheumatology

© 2001-2021 Sociedade Portuguesa de Reumatologia.Introduction: Ultrasound (US) is a relatively cheap, easily available and reliable method to improve the care of rheumatic patients. However, its use in rheumatology practice is very heterogeneous and needs to be standardized. Objectives: To develop recommendations for the use of US in rheumatic diseases endorsed by the Portuguese Society of Rheumatology. Methods: A systematic literature review of the available recommendations on the use of ultrasound in rheumatic diseases was performed and presented in a Portuguese Society of Rheumatology meeting to a subgroup of rheumatologists and rheumatology trainees with special interest in the subject. The most important topics to be addressed were selected and assigned to subgroups for literature review and draft recommendations. Following an iterative process of consensus, the final recommendations were developed, and their level of agreement voted anonymously online. A recommendation was approved when the average level of agreement was ≥ 7.5 in a 10-point Likert scale. Results: Fourteen recommendations were produced regarding nine rheumatology topics: rheumatoid arthritis, spondyloarthritis, connective tissue diseases, polymyalgia rheumatica, vasculitis, crystal-deposition diseases, soft tissue rheumatism, osteoarthritis and ultrasound-guided procedures. Conclusion: We developed an up-to-date guidance in the form of recommendations for the use of US in nine different areas of rheumatology. As ultrasound is an important imaging modality with increasing use in the rheumatology setting, and there are frequent technological advances in the ultrasound machines and probes, in parallel with continuous associated research, these recommendations should be regularly updated.info:eu-repo/semantics/publishedVersio

A oportunidade e os limites de uma história global de Portugal: mesa-redonda

This debate article brings together three critical reflections on a recent book, dedicated to the global history of Portugal, and on a variety of issues related to the subject

Removal of heavy metals using different polymer matrixes as support for bacterial immobilisation

Great attention is focused on the microbial treatment of metal contaminated environments. Three bacterial strains, 1C2, 1ZP4 and EC30, belonging to genera Cupriavidus, Sphingobacterium and Alcaligenes, respectively, showing high tolerance to Zn and Cd, up to concentrations of 1000ppm, were isolated from a contaminated area in Northern Portugal. Their contribution to Zn and Cd removal from aqueous streams using immobilised alginate, pectate and a synthetic cross-linked polymer was assessed. In most cases, matrices with immobilised bacteria showed better metal removal than the non-inoculated material alone. For the immobilisation with all the polymers, 1C2 was the strain that increased the removal of Zn the most, whereas EC30 was the most promising for Cd removal, especially when combined with the synthetic polymer with up to a ca. 11-fold increase in metal removal when compared to the polymer alone. Removal of individual metals from binary mixtures showed that there was differential immobilisation. There was greater removal of Cd than Zn (removals up to 40% higher than those showed for Zn). The results show that metal contaminated environments constitute a reservoir of microorganisms resistant/tolerant to heavy metals that have the capacity to be exploited in bioremediation strategies.Capsule immobilisation of bacteria in the naturally occurring alginate and pectate and in a synthetic cross-linked polymer increased the Zn and Cd removal abilities from single and binary contaminated waters; the applications with the synthetic polymer were the most promising for Cd and Zn removal in single and binary mixtures

Modification of the biopolymer castor oil with free isocyanate groups to be applied as bioadhesive

Surgical adhesives have been used for several applications, including haemostasis, sealing air leakages and tissue adhesion. The aim of this work was to develop a biodegradable urethane-based bioadhesive containing free isocyanate groups. This material presents the advantage of being biodegradable, biocompatible and having the capacity of reacting with amino groups present in the biological molecules.http://www.sciencedirect.com/science/article/B6T7J-4KBD4TJ-1/1/1cde3dc84251fac9fbcbb7cef25c709

Portuguese guidelines for the use of biological agents in rheumatoid arthritis - March 2010 update.

The authors present the revised version of the Portuguese Society of Rheumatology (SPR) guidelines for the treatment of rheumatoid arthritis (RA) with biological therapies. In these guidelines the criteria for introduction and maintenance of biological agents are discussed as well as the contraindications and procedures in the case of non-responders. Biological treatment should be considered in RA patients with a disease activity score 28 (DAS 28) superior to 3.2 despite treatment with 20mg/week of methotrexate (MTX) for at least 3 months or, if such treatment is not possible, after 6 months of other conventional disease modifying drug or combination therapy. A DAS 28 score between 2.6 and 3.2 with a significant functional or radiological deterioration under treatment with conventional regimens could also constitute an indication for biological treatment. The treatment goal should be remission or, if that is not achievable, at least a low disease activity, characterized by a DAS28 lower than 3.2, without significative functional or radiological worsening. The response criteria, at the end of the first 3 months of treatment, are a decrease of 0.6 in the DAS28 score. After 6 months of treatment response criteria is defined as a decrease of more than 1.2 in the DAS28 score. Non-responders, in accordance to the Rheumatologist's clinical opinion, should try a switch to another biological agent (tumour necrosis factor antagonist, abatacept, rituximab or tocilizumab).publishersversionpublishe