Clara Lieber worked with the German chemist in the fields of what two disciplines?
Clara Lieber Clara Lieber (July 10, 1902 – December 14, 1982) was an American chemist known for her work with Otto Hahn on discovering fission, and her discovery of several isotopes of strontium and barium.
Hilde Mangold Hilde Mangold (20 October 1898 – 4 September 1924) (née Proescholdt) was a German embryologist who was best known for her 1923 dissertation which was the foundation for her mentor, Hans Spemann's, 1935 Nobel Prize in Physiology or Medicine for the discovery of the embryonic organizer, "one of the very few doctoral theses in biology that have directly resulted in the awarding of a Nobel Prize". The general effect she demonstrated is known as embryonic induction, that is, the capacity of some cells to direct the developmental trajectory of other cells. Induction remains a fundamental concept and area of ongoing research in the field.