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
... (1774-1809), leader of the first American expedition to cross the continent
David Livingstone, (1813-1873), explored south and east Africa, determined the course of the ...