Encontrados 132 documentos, a visualizar página 1 de 14
Modelo tipo de dermatite atópica em rato
Barcelos, Raquel CS; Sampayo, Cristina de Mello; Antoniazzi, C. T. D.; Segat, H.J.; Silva, H.; Bürger, M.E.; Lima, Beatriz SilvaA dermatite atópica (DA) é um tema importante na dermatologia clínica. Na verdade, a patogénese dessa doença inflamatória crónica da pele, caracterizada principalmente por pele seca e prurido, ainda está longe de ser totalmente compreendida. A fim de saber mais acerca desta complexa doença, ratos Wistar machos e adultos (n = 10) foram utilizados como modelo animal, nos quais o tratamento com acetona (AA) foi c...
The European VLF/LF Radio Network: Advances and Recent Results. Geophysical
Biagi, P.F.; Maggipinto, T.; Schiavulli, L.; Ligonzo, T.; Ermini, A.; Martinelli, G.; Moldovan, I.; Silva, H.; Bezzeghoud, M.; Contadakis, M.Since 2009 a network of VLF (20-60 kHz) and LF (150-300 kHz) radio receivers has been put into operation in Europe in order to study earthquakes precursors. At the moment the network consists of ten receivers three of which are located in Italy, two in Greece and one in Portugal, Romania, Malta, Cyprus and Turkey. The data (sampling rate of 1min) are downloaded automatically at the end of each day and are colle...
Abiotic modulation of Spartina maritima photobiology in different latitudinal p...
Duarte, B.; Couto, Thiago; Freitas, J.; Valentim, J.; Silva, H.; Marques, J. C.; Dias, J. M.; Caçador, I.Spartina maritima has a very wide distribution in the northern hemisphere salt marshes crossing a wide variety of climatic environments. Therefore, it is not strange that some differences arise when observing the photosynthetic mechanisms of different populations inhabiting different latitudes. During this study it could be observed that climate is the most important factor controlling the photosynthetic traits...
Tacrolimus, a forgotten agent in kidney transplant leukopenia
Azevedo, P.; Freitas, C.; Silva, H.; Aguiar, P.; Santos, T.; Cabral, J.; Rocha, G.; Almeida, M.; Pedroso, S.; Martins, L.; Dias, L.Leukopenia in kidney transplant patients is frequent, it causes potentially life-threatening complications, but it is often poorly characterized. Opportunistic infections, immunologic disturbances and drug-related toxicity are principal causes of single or multilineage cytopenias. Tacrolimus-induced leukopenia is a less recognized but frequent complication. We describe one patient with leukopenia developing wit...
Imagem por Ressonância Magnética : uma ferramenta poderosa para a Engenharia de...
Ferreira, Hugo A.; Silva, H.; Rodrigues, Luís MonteiroA Engenharia de Tecidos (ET) é uma área de investigação crescente que se direciona à criação de substitutos biológicos funcionais para vários tecidos do corpo humano. Requer condições específicas favoráveis para a regeneração de tecidos, e o resultado do tecido engenheirado deve ser avaliado objetivamente. A Imagem por Ressonância Magnética (IRM) é uma das técnicas mais promissoras para este efeito. Esta revisã...
Thermal analysis of wood-steel hybrid construction
Fonseca, E.M.M.; Ramos, H.M.E.; Silva, H.J.G.; Ferreira, D.R.S.M.The main objective of this work is to provide the thermal analysis in wood-steel hybrid elements for building constructions under fire conditions. A transient thermal analysis with nonlinear material behaviour will be solved with ANSYS program. The use of wood-steel hybrid models has major advantages as increased fire resistance, and improved high strength. Wood is a lightweight material, easy to assemble, grea...
Thermal analysis of wood-steel hybrid construction
Fonseca, E.M.M.; Ramos, H.M.E.; Silva, H.J.G.; Ferreira, D.R.S.M.Main goal of this work is to present a numerical model to study the thermal necrosis due a dental drilling process, with and without water irrigation. Also an experimental methodology is used to measure the thermal occurrence in a pig mandible. Motivation, the assessment of bone damage, using the temperature criterion (above 55ºC.
Thermal analysis of wood-steel hybrid construction
Fonseca, E.M.M.; Ramos, H.M.E.; Silva, H.J.G.; Ferreira, D.R.S.M.The main objective of this work is to provide the thermal analysis in wood-steel hybrid elements for building constructions under fire conditions. A transient thermal analysis with nonlinear material behaviour will be solved with ANSYS program. The use of wood-steel hybrid models has major advantages as increased fire resistance, and improved high strength. Wood is a lightweight material, easy to assemble, grea...
Influence of seismic activity on the atmospheric electric field in Lisbon (Port...
Silva, H.G.; Oliveira, M.M.; Serrano, C.; Bezzeghoud, M.; Reis, A.H.; Rosa, R.N.; Biagi, F.In the present study, we considered the influence of seismic activity on the atmospheric electric field recorded at Portela meteorological station (Lisbon, Portugal) for the period from 1955 to 1991. To this end, an exploratory method was developed, which involved the selection of events for which the distance from the atmospheric electrical field sensor to the earthquake epicenter is smaller than the preparati...
Wavelet analysis of the LF radio signals collected by the European VLF/LF netwo...
Righetti, F.; Biagi, F.; Maggipinto, T.; Schiavulli, L.; Ligonzo, T.; Ermini, A.; Moldovan, I.A.; Moldovan, A.S.; Buyuksarac, A.; Silva, H.G.In 2008, a radio receiver that works in very low frequency (VLF; 20-60 kHz) and LF (150-300 kHz) bands was developed by an Italian factory. The receiver can monitor 10 frequencies distributed in these bands, with the measurement for each of them of the electric field intensity. Since 2009, to date, six of these radio receivers have been installed throughout Europe to establish a ‘European VLF/LF Network’. At pr...
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