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Phenolic composition and antioxidant activity of Rocha pear and other pear cult...
Salta, J.; Martins, A.; Santos, R. G.; Neng, N. R.; Nogueira, J. M.; Justino, Jorge; Rauter, A. P.The phenolic profile and the antioxidant activity of Rocha pear, a Portuguese pear cultivar, were determined and compared with the commercially available pear varieties Cornice, Abate, General Leclerc and Passe Crassane. Phenolic composition of the methanolic extracts of these pears was determined by high performance liquid chromatography with diode array detection (HPLC-DAD), while antioxidant activities were ...
Substitution-Newton-Raphson method applied to the modeling of a vapour compress...
Figueiredo,J. R.; Santos,R. G.; Favaro,C.; Silva,A. F. S.; Sbravati,A.This paper gives a detailed presentation of the Substitution-Newton-Raphson method, suitable for large sparse non-linear systems. It combines the Successive Substitution method and the Newton-Raphson method in such way as to take the best advantages of both, keeping the convergence features of the Newton-Raphson with the low requirements of memory and time of the Successive Substitution schemes. The large syste...
Binding sites and actions of Tx1, a neurotoxin from the venom of the spider Pho...
Santos,R.G.; Diniz,C.R.; Cordeiro,M.N.; De Lima,M.E.Tx1, a neurotoxin isolated from the venom of the South American spider Phoneutria nigriventer, produces tail elevation, behavioral excitation and spastic paralysis of the hind limbs after intracerebroventricular injection in mice. Since Tx1 contracts isolated guinea pig ileum, we have investigated the effect of this toxin on acetylcholine release, as well as its binding to myenteric plexus-longitudinal muscle m...
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