RESUMO
A spectrophotometric study of palladium complexation in concentrated nitrate and acid solutions is presented. The water activity of the solutions was fixed to control activity coefficients. The existence of the species PdNO(+)(3), Pd(NO(3))(2) and PdOHNO(3) has been evidenced and their stability was evaluated. An activity diagram for the predominance of soluble palladium species is presented and the precipitation limit is drawn.
RESUMO
A case is reported of left ventricular hypoplasia associated with anisosplenia. Even though congenital heart malformations are frequently found in cases of splenic anomalies, the association of polysplenia with hypoplastic left heart syndrome is extremely rare. The existence in addition of partial anomalous pulmonary venous connection of the right pulmonary veins to the right atrium, gave us the possibility of study the different changes in pulmonary arteries wall thickness in both lungs.