We investigated dendrite shaped superstructures made of two different QDs, namely CdSe/ZnS and CdTe. Due to the dense packing of QDs, Förster resonance energy transfer (FRET) may compete with deexcitation, and the specific dendrite shaped structure suggests the possibility of funneling of excitation from the edges of the structure to the center.
Este estudo tem como objetivo dar conta de estratégias discursivas relevantes utilizadas em O Evangelho segundo Jesus Cristo de José Saramago. É apresentada uma análise da obra, sob diferentes aspetos, e em contraste com as narrativas bíblicas do Novo Testamento, orientada pelos contributos teóricos da análise do discurso na perspetiva pragmática e da estatística lexical, efetuada com recurso a diversas ferrame...
O Plano Nacional de Acção Ambiente e Saúde (PNAAS), aprovado pela Resolução do Conselho de Ministros n.º 91/2008, de 4 de Junho, visa melhorar a eficácia das políticas de prevenção, controlo e redução de riscos para a saúde com origem em factores ambientais, promovendo a integração do conhecimento e a inovação, e contribuir para o desenvolvimento económico e social do país. A implementação deste Plano reveste-s...
Tese de mestrado integrado. Engenharia Civil (Especialização em Construções Civis). Faculdade de Engenharia. Universidade do Porto. 2009
J Biol Inorg Chem (2011) 16:1255–1268 DOI 10.1007/s00775-011-0813-8 ; Metal-dependent formate dehydrogenases (Fdh) from prokaryotic organisms are members of the dimethyl sulfoxide reductase family of mononuclear molybdenum-containing and tungsten-containing enzymes. Fdhs catalyze the oxidation of the formate anion to carbon dioxide in a redox reaction that involves the transfer of two electrons from the substr...
Biochem. J. (2011) 438,485–494 doi:10.1042/BJ20110836
J Biol Inorg Chem (2011) 16:881–888 DOI 10.1007/s00775-011-0785-8
Biochemistry, 2011, 50 (20), pp 4251–4262 DOI: 10.1021/bi101605p ; Respiratory nitric oxide reductase (NOR) was purified from membrane extract of Pseudomonas (Ps.) nautica cells to homogeneity as judged by polyacrylamide gel electrophoresis. The purified protein is a heterodimer with subunits of molecular masses of 54 and 18 kDa. The gene encoding both subunits was cloned and sequenced. The amino acid sequence...
J Biol Inorg Chem (2011) 16:183–194 DOI 10.1007/s00775-011-0753-3 ; This review focuses on the novel CuZ center of nitrous oxide reductase, an important enzyme owing to the environmental significance of the reaction it catalyzes, reduction of nitrous oxide, and the unusual nature of its catalytic center, named CuZ. The structure of the CuZ center, the unique tetranuclear copper center found in this enzyme, ope...
J Biol Inorg Chem (2011) 16:209–215 DOI 10.1007/s00775-010-0717-z ; In this work it is demonstrated that the characterization of c-type haem containing proteins by electrochemical techniques needs to be cautiously performed when using pyrolytic graphite electrodes. An altered form of the cytochromes, which has a redox potential 300 mV lower than that of the native state and displays peroxidatic activity, can b...
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