Aims: To assess the variability in UV-B (280–320 nm) sensitivity of selected bacterial isolates from the surface microlayer and underlying water of the Ria de Aveiro (Portugal) estuary and their ability to recover from previous UVinduced stress. Methods and Results: Bacterial suspensions were exposed to UV-B radiation (3Æ3 W m)2). Effects on culturability and activity were assessed from colony counts and 3H-leu...
Bioremediation efforts often rely on the application of surfactants to enhance hydrocarbon bioavailability. However, synthetic surfactants can sometimes be toxic to degrading microorganisms, thus reducing the clearance rate of the pollutant. Therefore, surfactant-resistant bacteria can be an important tool for bioremediation efforts of hydrophobic pollutants, circumventing the toxicity of synthetic surfactants ...
The increasing problem of antibiotic resistance in common pathogenic bacteria and the concern about the spreading of antibiotics in the environment bring the need to find new methods to control fish pathogens. Phage therapy represents a potential alternative to antibiotics, but its use in aquaculture requires a detailed understanding of bacterial communities, namely of fish pathogenic bacteria. Therefore, in th...
O presente artigo descreve um estudo realizado com o objectivo de identificar as dificuldades e necessidades de formação e informação por parte de cuidadores informais na prestação de cuidados, no domicílio, à pessoa idosa com dependência funcional na mobilidade. Pretendeu-se também conhecer a percepção destes cuidadores acerca da (in)formação proporcionada pelo enfermeiro durante o internamento da pessoa idosa...
Lipopolysaccharide (LPS) activates neutrophils and monocytes, inducing a wide array of biological activities. LPS rough (R) and smooth (S) forms signal through Toll-like receptor 4 (TLR4), but differ in their requirement for CD14. Since the R-form LPS can interact with TLR4 independent of CD14 and the differential expression of CD14 on neutrophils and monocytes, we used the S-form LPS from Salmonella abortus eq...
Avaliaram-se os efeitos da idade das matrizes leves e do período de armazenamento dos ovos sobre o rendimento de incubação. Foram utilizados 7.224 ovos da linhagem Dekalb, distribuídos de acordo com delineamento experimental inteiramente casualizado, sendo a altura de bandeja uma covariável. Os tratamentos foram definidos pelas idades das matrizes (32 e 57 semanas de idade) e o período de armazenamento dos ovos...
2007 ; 1 CD-ROM.
Proceedings of the First International Conference on Coastal Conservation and Management in the Atlantic and Mediterranean, p. 91-98 ; Over the last two decades, the Tróia peninsula (SW coast of Portugal) has been designated by the Portuguese authorities both as a protected area and as an area of tourism development. The private investor that took over the tourism developments in Tróia asked the Institute of M...
Identificação de demandas por informação na Embrapa Algodão; Introdução; Informações demandados, Perfil dos clientes; Considerações; Anexos; ; 2002
Financiadores do RCAAP | |||||||
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