Women Scientists
![Woman chemist holding a molecular model](/sites/default/files/styles/page_hero_desk/public/SIA-SIA2008-4572-000001.jpg?h=7c712462&itok=-wtmqB4Z)
American chemist Joyce Jacobson Kaufman (b. 1929), shown holding a molecular model. She is noted for carrying out the first all-valence-electron, three-dimensional quantum-chemical calculations, and for research on the clinical effects of tranquilizers and narcotic drugs. Smithsonian Institution Archives, Accession 90-105, Science Service Records, Image No. SIA2008-4572