Encontrados 4 documentos, a visualizar página 1 de 1
Bisphenol A migration from plastic materials: direct insight of ecotoxicity in ...
Mansilha, Catarina; Silva, Poliana; Rocha, Sónia; Gameiro, P.; Domingues, Valentina F.; Pinho, Carina; Ferreira, Isabel M. P. L. V. O.Bisphenol A (BPA) is an endocrine disrupting chemical (EDC) whose migration from food packaging is recognized worldwide. However, the real overall food contamination and related consequences are yet largely unknown. Among humans, children’s exposure to BPA has been emphasized because of the immaturity of their biological systems. The main aim of this study was to assess the reproductive impact of BPA leached fr...
Design and Characterization of a 20 Gbit/s Clock Recovery Circuit
P. Monteiro; J. N. Matos; A. Gameiro; P. A. Matos; J. F. da RochaIn this communication we report the design of a clock recovery circuit produced for the 20 Gbit/s demonstrator of the RACE 2011 project "TRAVEL" of the European Community. The clock recovery circuit is based on an open loop structure using a dielectric resonator narrow bandpass filter with high Q.A detailed electrical characterization of the circuit and alsoits sensitivity to temperatur...
Transformation of a Cutaneous Follicle Center Lymphoma to a Diffuse Large B-Cel...
Dias Coelho, J; Diamantino, F; Costa, I; Farinha, P; Gameiro, P; Sebastião, M; Baptista, JPrimary cutaneous follicle center lymphoma (PCFCL) is characterized by a proliferation of follicle center cells in the skin. A definitive diagnosis is frequently delayed because of difficulties in interpretation of the histopathologic findings. It has an excellent prognosis with a 5-year survival over 95% and its risk of transformation has not been established. We describe a case report of man with a gastric di...
Structural study of the interaction of vanadate with the ligand 1,2-dimethyl-3-...
Castro, M. M. C. A.; Geraldes, C. F. G. C.; Gameiro, P.; Pereira, E.; Castro, B.; Rangel, M.The interaction of vanadate with the ligand 1,2-dimethyl-3-hydroxy-4-pyridinone (Hdmpp) was studied in aqueous solution using a combination of multinuclear NMR and EPR spectroscopies, as well as potentiometry and cyclic voltammetry. The different species in solution were identified and characterized, and their pKa values and stability constants determined. The vanadium complexes formed in solution are strongly ...
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