Beaches worldwide provide recreational opportunities to hundreds of millions of people and serve as important components of coastal economies. Beach water is often monitored for microbiological quality to detect the presence of indicators of human sewage contamination so as to prevent public health outbreaks associated with water contact. However, growing evidence suggests that beach sand can harbor microbes ha...
Da Introdução: «O texto da História Augusta que nos chegou coloca‑nos perante questões tão intrincadas que parecem não ter solução à vista. Quando lemos o texto e ainda mais quando tentamos analisar as hipóteses modernas sobre a data, os autores, a ordem das Vidas, os objectivos, não podemos evitar a perplexidade. É grande a especulação e difícil de controlar o que é verosímil. Mas esta colectânea é a fonte mai...
O Maciço de Évora (ME) representa uma área com cerca de 60 km2 (Fig. 1) que se estende entre Montemor-o-Novo e Évora (Carvalhosa, 1983), localizada nos domínios ocidentais da Zona de Ossa-Morena (ZOM, Quesada e Munhá, 1990; Pereira et al., 2007; 2008, 2009a) e incluído no sector de Montemor-Ficalho (Oliveira et al., 1991). Os seus limites foram definidos por Carvalhosa (1983) como coincidentes a sudoeste com o ...
Whilst the potential impact on beach users from microorganisms in water has received considerable attention, there has been relatively little investigation into microbial contaminants in sand. Thirty three beaches across Portugal were analyzed during a five year period (2006–2010) to determine the presence of yeasts, pathogenic fungi, dermatophytes, total coliforms, Escherichia coli and intestinal enterococci i...
This project was developed to fully assess the indoor air quality in archives and libraries from a fungal flora point of view. It uses classical methodologies such as traditional culture media – for the viable fungi – and modern molecular biology protocols, especially relevant to assess the non-viable fraction of the biological contaminants. Denaturing high-performance liquid chromatography (DHPLC) has emerged ...
The in vivo antifungal activity of the naphthoquinone beta-lapachone against disseminated infection by Cryptococcus neoformans was investigated. Swiss mice were immunosuppressed daily with dexamethasone (0.5 mg per mouse) intraperitoneally for 3 days, the procedure was repeated 4 days later, and the animals were then challenged intravenously with C. neoformans (10(6) CFU/mL) 1 week later. Seven days after infec...
Este trabalho que visa oferecer orientações sobre os procedimentos de estágio na Embrapa Arroz e Feijão. ; 2009
O conceito de sistema petrolífero agrupa os diversos elementos que controlam a existência de jazidas de petróleo numa bacia sedimentar. Tal conceito, visualizado numa escala global, parece justificar de maneira adequada as diversas províncias petrolíferas conhecidas. A evolução tectono-sedimentar meso-cenozóica da margem continental brasileira propiciou o desenvolvimento desses elementos-chave, cuja presença é ...
We report a new single-valued potential energy surface for the ground state of H02 from the double many-body expansion (DMBE) method. This new surface conforms with the three-body energy of recent ab initio CAS SCF/CCI calculations semiempirically corrected by the DMBE-SEC method and reproduces the most accurate estimates of the experimental dissociation energy, equilibrium geometry, and quadratic force constan...
A double many-body expansion potential energy surface reported previously for H02(R2A”) and referred to here as DMBE I is modified to produce thermal rate coefficients for the reaction 0 + OH - O2 + H in good agreement with experiment. This new potential energy surface will be referred to as DMBE 11. By the further imposition that the potential function should reproduce the experimental spectroscopic force fiel...
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