Avaliação da aplicação de argamassas de cal em suportes tradicionais

Mestrado em Engenharia CivilA presente dissertação, enquadrada no projeto METACAL, permitiu o estudo do comportamento de diferentes composições de argamassas de cal em suportes de adobe. Para tal, estas foram sujeitas a vários tipos de ensaio, mecânicos e químicos, procurando adaptá-las a situações reais, com o intuito de perceber qual a melhor composição de argamassa que se adequa a este tipo de suporte. Como não é possível encontrar um tipo de argamassa ideal, que se adapte a todas as situações, tem este trabalho como base, estudar os parâmetros que influenciam a sua escolha.This dissertation, framed in METACAL project, allowed the study of the behaviour of different compositions of lime mortars in adobe. For this, they were subject to various kinds of chemical and mechanical tests seeking to adapt them to actual situations, in order to realize which mortar composition is more suitable for this type of support. As it is not possible to find a type of mortar ideal that suits all situations, this work has as a basis to study the parameters that influence your choice

Educomunicação, Transformação Social e Desenvolvimento Sustentável

Esta publicação apresenta os principais trabalhos dos GTs do II Congresso Internacional de Comunicação e Educação nos temas Transformação social, com os artigos que abordam principalmente Educomunicação e/ou Mídia-Educação, no contexto de políticas de diversidade, inclusão e equidade; e, em Desenvolvimento Sustentável os artigos que abordam os avanços da relação comunicação/educação no contexto da educação ambiental e desenvolvimento sustentável

Ambiente e Saúde em Creches e Infantários

This project addresses a set of common clinical problems in the context of children attending day care centres. It is common sense that children get sick more often as soon as they start attending a day care centre on a daily basis and this is particularly true for some groups at risk, as wheezing infants and wheezing pre-school children. Concerning this, some questions remain unclear: 1. The role of indoor air quality - what is the health impact of indoor air environment (including indoor pollutants, house dust mite, temperature and humidity) in wheezing children? 2. The role of virus infections - We don’t know the real role of virus infections in respiratory conditions at day care centre level. There is a lack of information concerning how indoor air environment influence virus infections. 3. The role of building ventilation - what is the impact of building ventilation in the health of wheezing and non-wheezing children? How is ventilation affecting indoor air quality? How is ventilation of day care centres affected by the structure of the buildings? 4. Social impact of this study - what should be the recommendations to improve IAQ? What is new in this project is the collaboration of a health team (medical doctors and other health professionals) with environment specialists, mechanical, civil engineers, epidemiologists and statisticians.Fundação para a Ciência e Tecnologi

Characterisation of microbial attack on archaeological bone

As part of an EU funded project to investigate the factors influencing bone preservation in the archaeological record, more than 250 bones from 41 archaeological sites in five countries spanning four climatic regions were studied for diagenetic alteration. Sites were selected to cover a range of environmental conditions and archaeological contexts. Microscopic and physical (mercury intrusion porosimetry) analyses of these bones revealed that the majority (68%) had suffered microbial attack. Furthermore, significant differences were found between animal and human bone in both the state of preservation and the type of microbial attack present. These differences in preservation might result from differences in early taphonomy of the bones. © 2003 Elsevier Science Ltd. All rights reserved