Encontrados 10 documentos, a visualizar página 1 de 1
Efectividade da Rede de Referenciação Perinatal da Região Centro
Costa, E.; Moleiro, P.; Carvalho, L.; Neves, F.; Oliveira, J.; Ventura, A.; Teixeira, A. L.; Martins, J.; Figueiredo, N.; Costa, R.; Peixoto, J.Resumo Em 1990 foi desenvolvida em Portugal uma Rede de Referenciação Perinalal, com definição dos limites e as responsabilidades assistenciais dos Hospitais de Apoio Perinatal Diferenciado (HAPD) e dos Hospitais de Apoio Perinatal (HAP). Graças ao espírito de cooperação c complementaridade desenvolvidos, os critérios de transferência iu útero e pós natal estão bem estabelecidos* Com os resultados do Registo Na...
Nanocrystalline Au:Ag:SnO2 films prepared by pulsed magnetron sputtering
Reddy, A. Sivasankar; Figueiredo, N. M.; Cavaleiro, A.Influence of annealing temperature on structural, compositional, surface morphology, electrical, and optical properties of pulsed magnetron sputtered nanocrystalline Au:Ag:SnO2 films was investigated by several analytical techniques. From the XRD results, the films were polycrystalline with the absence of impurity phases and the films were grown preferentially in the (110) orientation of SnO2 with tetragonal st...
O cultivo do arroz e a resposta do agrossistema às alterações ambientais de tem...
Figueiredo, N.; Merino, R.; Prazeres, A.; Fareleira, P.; Vargues, A.; Carranca, C.; Marques, P.; Pereira, J.; Goufo, P.; Trindade, H.; Carneiro, J.P.A cultivar de arroz Ariete apresentou uma eficiência máxima de uso do N de 64% e uma produção de 8,5 t ha-1, após aplicação de 120 kg N ha-1, metade em fundo e metade ao afilhamento. Os fatores de emissão de GEEs medidos no campo foram de 136 kg CH4 ha-1 e 1,5% para o N2O. As emissões de COVs (especialmente na forma de terpenos) e NH3 foram reduzidas, mas atingiram 8 kg N-NH3 ha-1 dia-1 após a adubação de cober...
Acute kidney injury in pregnancy: a clinical challenge
Machado, S; Figueiredo, N; Borges, A; Pais, MS; Freitas, L; Moura, P; Campos, MThe incidence of acute kidney injury in pregnancy declined significantly over the second half of the 20th century; however, it is still associated with major maternal and perinatal morbidity and mortality. A set of systemic and renal physiological adaptive mechanisms occur during a normal gestation that will constrain several changes in laboratory parameters of renal function, electrolytes, fluid and acid-base ...
Pulsed direct current magnetron sputtered nanocrystalline tin oxide films
Reddy, A. Sivasankar; Figueiredo, N. M.; Cavaleiro, A.The nanocrystalline tin oxide (SnO2) films were deposited on glass substrates by pulsed magnetron sputtering technique and subsequently annealed from 200 to 500 °C. The structural, microstructural, electrical, and optical properties of as deposited and annealed SnO2 films were studied. The crystallinity degree of the films increased with annealing temperature. Photoluminescence (PL) measurements showed that the...
An XPS study of Au alloyed Al–O sputtered coatings
Figueiredo, N. M.; Carvalho, N. J. M.; Cavaleiro, A.The focus of this research is the X-ray photoelectron spectroscopy (XPS) analysis of thin films consisting of Au metal clusters embedded in a dielectric matrix of Al-O coatings. The coatings were deposited by co-sputtering an Al+Au target in a reactive atmosphere with Au contents up to 8 at.%. The Al-O matrix was kept amorphous even after annealing at 1000°C. In the as-deposited films the presence of Au cluster...
Revestimentos decorativos pelo efeito SPR obtido pela adição de Au a matrizes d...
Figueiredo, N. M.; Vaz, F.; Cunha, L.; Cavaleiro, A.A SPR (ressonância dos plasmões de superfície) originada pela introdução de nanopartículas metálicas em matrizes dieléctricas possui um elevado leque de aplicações, sendo alvo de uma actividade intensa de investigação. De modo a tirar partido da forte extinção da luz em certas gamas do visível que estes sistemas proporcionam, foi objectivo deste trabalho desenvolver revestimentos nanocompósitos com efeito SPR p...
Ag-Ti(C,N)-based coatings for biomedical applications : influence of silver con...
Manninen, N. K.; Galindo, R. Escobar; Benito, N.; Figueiredo, N. M.; Cavaleiro, A.; Palacio, C.; Carvalho, S.Ag–TiCN coatings were deposited by dc reactive magnetron sputtering and their structural and morphological properties were evaluated. Compositional analysis showed the existence of Ag–TiCN coatings with different Ag/Ti atomic ratios (ranging from 0 to 1.49). The structural and morphological properties are well correlated with the evolution of Ag/Ti atomic ratio. For the samples with low Ag/Ti atomic ratio (belo...
Development of new decorative coatings based on gold nanoparticles dispersed in...
Torrell, M.; Machado, P.; Cunha, L.; Figueiredo, N. M.; Oliveira, J. C.; Louro, C.; Vaz, F.The present work is devoted to the optical properties of Au:TiO2 thin films in order to clarify the role of the Au clusters inclusions in the TiO2 dielectric matrix. Three series of films containing about 30 at.% (29.2), 20 at. % (19.8) and 10 at.% (9.3) Au were deposited by dc reactive magnetron sputtering. On thermal annealing in the range from 300 to 800 °C in protective atmosphere, significant changes on th...
Profile of thyroid hormones in breast cancer patients
Saraiva,P.P.; Figueiredo,N.B.; Padovani,C.R.; Brentani,M.M.; Nogueira,C.R.Estrogen involvement in breast cancer has been established; however, the association between breast cancer and thyroid diseases is controversial. Estrogen-like effects of thyroid hormone on breast cancer cell growth in culture have been reported. The objective of the present study was to determine the profile of thyroid hormones in breast cancer patients. Serum aliquots from 26 patients with breast cancer rangi...
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