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Improvements on colony morphology identification towards bacterial profiling

Colony morphology may be an indicator of phenotypic variation, this being an important adaptive process adopted by bacteria to overcome environmental stressors. Furthermore, alterations in colony traits may reflect increased virulence and antimicrobial resistance. Despite the potential relevance of using colony morphological traits, the influence of experimental conditions on colony morphogenesis has been scarc...

Biological features of Pseudomonas aeruginosa biofilms : time to rethink antimi...

Bacterial infections in cystic fibrosis (CF) lungs are generally associated with mucoid P. aeruginosa and small colonies variants (SCV). Previous works showed that several other colony variants were isolated from CF lungs showing as well resistance to antibiotics. Those variants until now devaluated may play a relevant role in CF population persistence to antibiotic therapies and immune defences. Phenotypic swi...

Extraction of agar from Gelidium corneum using an alternative heating technology

Traditional polysaccharides extraction processes are often performed under heating which makes them time-, energy- and solvent-consuming. The aim of this work was to assess the possibility of using ohmic heating to replace conventional heating in the extraction of seaweed hydrocolloids. This technology is able to heat almost instantaneously the whole volume to be treated, using the ability that most materials h...

Encaminhamento em Redes Heterogéneas: um estudo de caso baseado na Rede da Univ...

This article addresses the routing problem in heterogeneous local area networks. In particular, the routing requirements derived from the integration of an ATM network in the University of Aveiro (UA) data network are addressed. ATM technology enables a more flexible network management at cost of an extended complexity in the required routing solutions. ATM technology enables the&n...

Contribuições da Universidade de Aveiro para a especificação da Rede de Área Lo...

This paper introduces the IEEE 802.11 wireless local area network and describes the main contributions given by the University of Aveiro to its specification. ; Este artigo introduz a rede de área local não-cablada IEEE 802.11 e descreve as principais contribuições da Universidade de Aveiro para a sua especificação.

Scheelite recovery by froth flotation from gravity concentration slimes of "Los...

Timely and effectively profile bacteria in cystic fibrosis lungs

Bacterial lung infections are typical of cystic fibrosis (CF) disease due to accumulation of airway mucus. Despite the use of aggressive antibiotic therapy, the mortality rate of CF patients is still high. Unsuccessful bacterial eradication is often due to several evolutional strategies adopted by bacteria to achieve anaerobic or microaerophilic adaptation and antibiotic resistance, such as biofilm formation an...

Processamento tecnológico dos minérios de lítio : alguns casos de estudo em Por...

Processamento tecnológico dos minérios de lítio : alguns casos de estudo em Por...

Kinetic study of the redox processes in carbon electrodes with Geobacter sulfur...

Geobacter sulfurreducens is a bacteria that can transfer electrons directly to the electrode from different external membrane cytochromes. Each cytochrome is associated with a range of electrical potentials, being energetically more favourable than some others. Different growth conditions of the bacteria, such as temperature, may influence the prevalence of certain cytochromes in the external membrane. The aim ...