for his work on ribonucleaseandfor their contribution to the understanding of the connection between chemical structure and catalytic activity of the ribonuclease molecule
for their elucidation of the enzymatic mechanism underlying the synthesis of adenosine triphosphateandfor his discovery of an ion-transporting enzyme, Na+, K+ -ATPase
... in 1945, but following a military coup d'état in 1964 saw a succession of generals as president, until 1985. Brazil has since returned to a popularly elected government and ...