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Effect of filler content on morphology and physical-chemical characteristics of...
Lopes, A. C.; Ribeiro, C.; Sencadas, V.; Botelho, G.; Lanceros-Mendez, S.Poly(vinylidene fluoride) electrospun membranes have been prepared with different NaY zeolite contents up to 32%wt. Inclusion of zeolites induces an increase of average fiber size from ~200 nm in the pure polymer up to ~500 nm in the composite with 16%wt zeolite content. For higher filler contents, a wider distribution of fibers occurs leading to a broader size distributions between the previous fiber size valu...
Nucleation of the electroactive β-phase and enhancement of the optical transpar...
Lopes, A. C.; Costa, Carlos M.; Tavares, C. J.; Neves, I. C.; Lanceros-Méndez, S.Poly(vinylidene fluoride), PVDF, based nanocomposites with different clays structures have been processed by solvent casting and melt crystallisation. Depending on the melting temperature of the polymer, the nanocomposite recrystalises in the electroactive or non electroactive β-phase of the polymer. This fact is related to the thermal behaviour of the clay. For montmorillonite clay, the full crystallisation...
Análise de sementes de hortaliças.
LOPES, A. C. A.; NASCIMENTO, W. M.2009
Amostragem de sementes para análise em laboratório.
LOPES, A. C. A.; NASCIMENTO, W. M.2009
Hyperthermia induced after recirculation triggers chronic neurodegeneration in ...
Favero-Filho,L.A.; Borges,A.A.; Grassl,C.; Lopes,A.C.; Sinigaglia-Coimbra,R.; Coimbra,C.G.Chronic neurodegenerative processes have been identified in the rat forebrain after prolonged survival following hyperthermia (HT) initiated a few hours after transient global ischemia. Since transient global ischemia and ischemic penumbra share pathophysiological similarities, this study addressed the effects of HT induced after recirculation of focal brain ischemia on infarct size during long survival times. ...
Effect of air pollution on diabetes and cardiovascular diseases in São Paulo, B...
Pereira Filho,M.A.; Pereira,L.A.A.; Arbex,F.F.; Arbex,M.; Conceição,G.M.; Santos,U.P.; Lopes,A.C.; Saldiva,P.H.N.; Braga,A.L.F.; Cendon,S.Type 2 diabetes increases the risk of cardiovascular mortality and these patients, even without previous myocardial infarction, run the risk of fatal coronary heart disease similar to non-diabetic patients surviving myocardial infarction. There is evidence showing that particulate matter air pollution is associated with increases in cardiopulmonary morbidity and mortality. The present study was carried out to e...
Fracture behaviour of a new submicron grained cemented carbide
Oliveira, F. A. Costa; Lopes, A. C.; Fernandes, Jorge Cruz; Sacramento, J.; Valente, M. A.In this work, the effect of increase argon pressure applied on a post-sintering treatment from MPa to MPa on the mechanical properties of a newly developed hardmetal grade, namely hardness, flexural strength and fracture toughness, is reported. The as-received material has been prviously sintered at 1460ºC under 2 MPa argon pressure from powder mixtures of WC and 3,5 wt% Co together with minor additions of VC, ...
Comportamento produtivo de genótipos de soja no Município de Piracicaba, São Pa...
ROCHA, M. de M.; VELLO, N. A.; LOPES, Â. C. de A.; MAIA, M. C. C.2003
Estudo histomorfométrico dos cardiomiócitos do ventrículo esquerdo das ratas al...
Liberatori Filho,A.W.; Lopes,R.D.; Mora,O.A.; Simões,M.J.; Lopes,A.C.OBJETIVO. No presente estudo propusemo-nos a avaliar, por meio da microscopia de luz, os aspectos morfológicos e morfométricos dos cardiomiócitos do ventrículo esquerdo de ratas albinas durante a prenhez. MÉTODOS. Acasalamos doze ratas virgens que foram dividas ao acaso em quatro grupos, de acordo com a idade gestacional. Os animais correspondentes a cada grupo foram sacrificados ao 1o(G-A), 7o(G-B), 14o(G-C) e...
Aspectos ultra-estruturais da fibra muscular cardíaca de ratas albinas durante ...
Liberatori Filho,A.W.; Lopes,C.D.; Simões,M. J.; Mora,O.A.; Carvalho,A.C.C.; Lopes,A.C.OBJETIVO. No presente estudo avaliamos, por intermédio da microscopia eletrônica de transmissão, a morfologia dos cardiomiócitos do ventrículo esquerdo de ratas albinas no decorrer do ciclo gravídico-puerperal. MÉTODOS. Obtida a prenhez, 77 ratas foram divididas ao acaso em dois grupos denominados, respectivamente, de: gestação (G) e puerpério (P). Os animais pertencentes ao grupo gestação foram ainda subdividi...
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