Encontrados 22 documentos, a visualizar página 1 de 3
Human mesenchymal stem cells response to multi-doped silicon-strontium calcium ...
Rodríguez-Valencia, Cosme; Pereiro, Iago; Pirraco, Rogério; Lopéz-Álvarez, M.; Serra, J.; González, P.; Marques, A. P.; Reis, R. L.The search for apatitic calcium phosphate coatings to improve implants osteointegration is, nowadays, preferentially focused in the obtaining of compositions closer to that of the inorganic phase of bone. Silicon and strontium are both present in trace concentrations in natural bone and have been demonstrated, by separate, to significantly improve osteoblastic response on calcium phosphate bioceramics. This wor...
Establishing research strategies, methodologies and technologies to link genomi...
Mazzuca, S.; Bjork, M.; Beer, S.; Felisberto, P.; Gobert, S.; Procaccini, G.; Runcle, J.; Silva, J.; Borges, A.V.; Brunet, C.; Buapet, P.A complete understanding of the mechanistic basis of marine ecosystem functioning is only possible through integrative and interdisciplinary research.This enables the predictionof change and possibly the mitigation of the consequences ofanthropogenic impacts. One major aim of the European Cooperation in Science and Technology (COST) Action ES0609 “Seagrasses productivity. From genes to ecosystem management,” is...
Fine-scale genetic breaks driven by historical rangedynamics and ongoing densit...
Neiva, J.; Pearson, G. A.; Valero, M.; Serrão, EsterFactors promoting the emergence of sharp phylogeographic breaks include restricted dispersal, habitat discontinuity, physical barriers, disruptive selection, mating incompatibility, genetic surfing and secondary contact. Disentangling the role of each in any particular system can be difficult, especially when species are evenly distributed across transition zones and dispersal barriers are not evident. The estu...
Silica grafted polyethylenimine as heterogeneous catalyst for condensation reac...
Ribeiro, Sonia M.; Serra, Arménio. C.; Gonsalves, A. M. d’A. RochaPrimary amine groups were attached to a silica surface by using α,ω-diamines derivatives and (3-glycidyloxypropyl)-trimethoxysilane activation. The same activation was used to graft polyethylenimine, which also contains secondary and tertiary amine groups. These silica aminated structures were tested as heterogeneous catalysts in nitroaldol condensation with nitromethane, the derivative with the polyethylenimin...
A utilização de 99mtc-Hl-91 na avaliação da hipóxia tumoral em adenocarcinoma c...
Abrantes, A. M.; Serra, E.; Gonçalves, C.; Laranjo, M.; Sarmento-Ribeiro, A.; Rocha-Gonçalves, A.; Botelho, M. F.Resumo da comunicação apresentado ao XII Congresso Nacional de Medicina Nuclear, 12-14 Novembro 2009, Mealhada
New method for the measurement of fibres orientation on the paper faces applied...
Pereira, M.J.T.; Costa, A.P.; Trindade, A.C.; Fiadeiro, P. T.; Silvy, J.; Tosio, J.M.SerraFor a given change in the humidity of a paper the hygro-instability of the sheet depends of two main factors: the sheet structural parameters which reflects its structure: the sheet porosity, the fibres orientation distribution mainly in the sheet plane and the variations of these parameters across the paper sheet thickness. the water reactivity of the components of the paper sheet which depends mainly of t...
Immobilised porphyrins in monoterpene photooxidations
Ribeiro, Sónia M.; Serra, Arménio C.; Gonsalves, A. M. D'A. RochaPorphyrins were covalently linked to modified Merrifield polymers by chlorosulphonation activation of the porphyrin nucleus. These supported porphyrins were used as photosensitizers to promote singlet oxygen oxidation of monoterpenes with an efficiency that depends on porphyrin structure and the spacer used to link it to the polymer structure. The performance of these photosensitizers was studied. Citronellol a...
Genetic identification in endodontic treated tooth root
Corte-Real, A. T.; Anjos, M. J.; Andrade, L.; Carvalho, M.; Serra, A.; Bento, A. M.; Oliveira, C.; Batista, L.; Corte-Real, F.; Vieira, D. N.The tooth is an important sample in adverse forensic conditions. Its morphology and histology contributes for the preservation of the cellular components. ; http://www.sciencedirect.com/science/article/B8JHP-4SBRTWX-V/1/4edd71a84d252ef01f799c324b50a993
Covalently immobilized porphyrins as photooxidation catalysts
Ribeiro, Sónia M.; Serra, Arménio C.; Rocha Gonsalves, A. M. D'A.Porphyrins covalently linked to aminomethylated Merrifield polymers, by chlorosulfonation activation of the porphyrin nucleus, are able to generate singlet oxygen with an efficiency which is related to the spacer between porphyrin and the polymer backbone. Juglone and ascaridole are efficiently produced in the presence of these supported catalysts. ; http://www.sciencedirect.com/science/article/B6THR-4NTRT0M...
Estudo e Diagnóstico de Necessidades de Formação Profissional Florestal na Regi...
Amaral, N.; Bica, A.; Ferreira, A.; Mendes, A.; Viana, H.; Pato, L.; Fachada, M.; Serra, N.Este estudo tem assim por objectivo tornar mais competitivo o sector florestal da RDL, através da melhoria da formação profissional dos seguintes intervenientes nesta área de actividade: produtores florestais, viveiristas, empreiteiros florestais, madeireiros e técnicos florestais. Simultaneamente, este trabalho poderá servir de guião a futuras acções de formação para o sector florestal, originando assim uma ...
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