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Polarographic and Spectrophotometric Study of Lead Complexes with Diethanoldith...
Marques,A.L.B.; Chierice,G.O.Experimental and theoretical aspects concerning the behaviour of lead-dietanoldithiocarbamate complexes in aqueous solutions were studied. The reaction occurs through complexation and formation of a yellow precipitate, which is soluble in ligand excess and in some polar solvents. The results from elementary and gravimetric analyses show a stoichiometric relationship of 1:2 (Pb(II): DEDC). Some ambiguous interpr...
The effect of left ventricular dysfunction on nocturnal desaturation in patient...
dos Santos, J M; Serviço de Pneumologia, Centro Hospitalar de Coimbra.; Marques, A L; Moita, J; Pato, RThe possibility of nocturnal oxygen desaturation (NOD) in patients with chronic bronchitis and emphysema (CBE) even with basal hypoxemia greater that 55 mmHg is well recognised. Nocturnal hypoventilation is admitted as the main cause for this NOD. In this study we evaluate how the presence of left ventricular dysfunction (LVD) could aggravate NOD. Thirty-six patients with CBE and basal stabilised PaO2 55-70 mmH...
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