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Sexualidade na Adolescência: contributos da investigação efetuada em contexto a...
Amaral-Bastos, M.; Sousa, C.; Fonseca, L.; Oliveira, A.; Costa, N.Introdução: Estudar e promover um equilíbrio saudável do desenvolvimento da sexualidade humana constitui um desafio para os profissionais que contactam com adolescentes. Objetivos: Este estudo pretende: identificar a investigação produzida em contexto académico em Portugal sobre sexualidade na adolescência; conhecer as conclusões principais da investigação identificada; caraterizar os estudos relativamente às v...
Silk Fibroin/Nano-CaP Bilayered scaffolds for osteochondral tissue engineering
Yan, Leping; Oliveira, Joaquim M.; Oliveira, A. L.; Reis, R. L.In this study, bilayered silk and silk/nano-CaP scaffolds were developed for osteochondral (OC) tissue engineering. Aqueous silk solution (16 wt.%) was used for preparation of the cartilage-like layer and, for generation of the silk/nano-CaP suspension and the bottom layer (CaP/Silk: 16 wt.%). The scaffolds were formed by using salt-leaching/lyophilization approach. The scanning electron microscopy revealed tha...
Colestase Neonatal. Uma Realidade em Cuidados Intensivos Neonatais
Oliveira, A.; Guimarães, H.; Souto, A.; Martins, A.; Mateus, M.; D'Orey, M. C.; Santos, N. TeixeiraA hepatite neonatal e a atrésia biliar, foram durante muitos anos responsáveis pela maioria dos casos de colestase em recém-nascidos.Estudos mais recentes demonstram que a sépsis e a nutrição parenteral são actualmente as principais causas.O objectivo deste estudo foi identificar a etiologia, a morbilidade e a mortalidade nos recém-nascidos com colestase internados na nossa unidade.Estudámos 12 recém-nascidos, ...
Collagen type IV-related nephropathies in Portugal: pathogenic COL4A5 mutations...
Sá, MJ; Storey, H; Flinter, F; Nagel, M; Sampaio, S; Castro, R; Araújo, JA; Gaspar, MA; Soares, C; Oliveira, A; Henriques, AC; Costa, AG; Abreu, CPPathogenic mutations in genes COL4A3/COL4A4 are responsible for autosomal Alport syndrome (AS) and thin basement membrane nephropathy (TBMN). We used Sanger sequencing to analyze all exons and splice site regions of COL4A3/COL4A4, in 40 unrelated Portuguese probands with clinical suspicion of AS/TBMN. To assess genotype-phenotype correlations, we compared clinically relevant phenotypes/outcomes between homozygo...
Sistema Interactivo para a Inovação e Transferência Tecnológica
Carlos Guerra Martins; Jorge Manuel Pais V. Oliveira; A. Manuel de Oliveira Duarte; Ana Rita SantosThis article was made to present the Interactive System for the Innovation and Technological Transfer.It's main objective is to contribute for the developing of aninformation system whose characteristics are suitable for theacademic-scientific community requests and that encouragesthe transfer of the knowledge and cooperation between thescientific system (Universities, Institutes and TechnologicalCenters) and t...
Wavelength Conversion with MZI-SOAs
T. Silveira; N. Yan; L. Oliveira; A. Teixeira; A. Ferreira; E. Tangdiongga; P. Monteiro; A.M.J. KoonenWavelength multicasting at 40Gb/s is demonstrated by all-optical multi-wavelength conversion based on a single MZI-SOA. Simultaneous ITU grid 200GHz spaced one-to-four conversion is achieved with negligible sensitivity difference among all the multicast channels. Furthermore, we propose some new all-optical applications enabled by this technology. ; Wavelength multicasting at 40Gb/s is demonstrated by all-opti...
Carotenoid and lipid production by the autotrophic microalga Chlorella protothe...
Campenni, Luca; Nobre, Beatriz P.; Santos, Carla A.; Oliveira, A. C.; Aires-Barros, M. R.; Palavra, António F.; Gouveia, L.Today microalgae represent a viable alternative source for high-value products. The specie Chlorella protothecoides (Cp), heterotrophically grown, has been widely studied and provides a high amount of lutein and fatty acids (FA) and has a good profile for biodiesel production. This work studies carotenoid and FA production by autotrophic grown Cp. Cp was grown until the medium’s nitrogen was depleted, then dilu...
A biorefinery from Nannochloropsis sp. microalga – Extraction of oils and pigme...
Nobre, Beatriz P.; Villalobos, Fidel; Barragan, Blanca E; Oliveira, A. C.; Batista, Ana Paula; Marques, Paula Alexandra; Mendes, Rui L.; Sovová, H.The microalga Nannochloropsis sp. was used in this study, in a biorefinery context, as biomass feedstock for the production of fatty acids for biodiesel, biohydrogen and high added-value compounds. The microalgal biomass, which has a high lipid and pigment content (mainly carotenoids), was submitted to supercritical CO2 extraction. The temperature, pressure and solvent flow-rate were evaluated to check their ef...
Agro-food industry residues for biodiesel production: BIOFFA project
Costa, Paula; Bogel-Lukasik, R.; Passarinho, Paula C.; Oliveira, A. C.The aim of the project BIOFFA is to develop processes for the production of biofuels from residual raw-materials with high free fatty acid (FFA). In technological terms, two distinct approaches, leading to different final products, are being assessed: production of fatty acid methyl esters (FAME) – biodiesel, and hydrogenated oil – H-oil. Different residues available in Portugal, including poultry fat, cattle f...
Biocombustíveis: uma oportunidade ou um problema para Portugal
Gírio, Francisco M.; Bogel-Lukasik, R.; Matos, Cristina T.; Oliveira, A. C.; Silva, Luís ManuelApresenta-se nesta curta comunicação a problemática referente à introdução dos biocombustíveis nos transportes em Portugal na sequência da transposição para a legislação nacional das diferentes diretivas europeias (2003 e 2009). A produção de biocombustíveis em território nacional tem vindo a aumentar na sequência da política nacional de promoção dos mesmos embora as matérias-primas utilizadas (oleaginosas) sej...
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