Vocation : Education : Researcher

Selmar_Aschheim

Selmar Aschheim (4 October 1878 – 15 February 1965) was a German gynecologist who was a native resident of Berlin.
Born into a Jewish family, in 1902 he received a doctorate of medicine in Freiburg, and later became director of the laboratory of the Universitäts-Frauenklinik at the Berlin Charité. In 1930 Aschheim attained the chair of biological research in gynecology at the University of Berlin. In 1933 he fled Nazi Germany and moved to Paris, where he worked in medical research at the Hôpital Beaujon.
Aschheim was a specialist concerning gynecological histology and hormone research. In 1928 with endocrinologist Bernhard Zondek (1891–1966), he isolated the gonadotropic hormone known as human chorionic gonadotropin (hCG), which was discovered in the urine of pregnant women. From their research the "Aschheim-Zondek test" for pregnancy was created, which involved injection of a patient's urine into an immature laboratory mouse. If the rodent displayed an estrous reaction, it represented a positive indication of pregnancy.
The two doctors published the findings of the hormone in a treatise titled Das Hormon des Hypophysenvorderlappens. At the time they believed that the gonadotrophin was produced by the anterior pituitary, however further research in the 1940s demonstrated that the placenta was responsible for the elaboration of the hormone.

Walton_Musser

Clarence Walton Musser (April 5, 1909, Mount Joy, Pennsylvania – June 8, 1998) inventor of strain wave gearing and also credited with over 250 major inventions and discoveries.Some of his inventions were the Army recoilless rifle, aircraft personnel catapults, instrumentation for underwater detonation testing. His varied career includes experience in many diverse fields. He was research advisor to the Department of Defense for 15 years. With other industrial and government organizations, he has served as chief engineer, director of research, and consultant. He held professional engineering licences in Pennsylvania and Massachusetts. As a research adviser to United Shoe Machinery Corp., he explored nonrigid-body mechanics, using controlled deflection as an operating medium. In 1957 Musser announced invention of strain wave gearing also known as harmonic gearing (U. S. patent 2,906,143). He is also the inventor of first fluidic stepper actuators

Ross_Allen_(herpetologist)

Ensil Ross Allen (January 2, 1908 – May 17, 1981) was an American herpetologist and writer who was based in Silver Springs, Florida for 46 years, where he established the Reptile Institute. He used it for research and education about alligators, crocodiles and snakes, also sponsoring and conducting collection expeditions.
Allen founded and was first president of the International Crocodile Society. In his research with snakes, he developed many anti-venoms, including a dried form, and professionally milked venoms for venomous snakes, which was particularly important for protecting United States forces during World War II. He mixed entertainment and science at his Institute.

Horace_Hodes

Horace Louis Hodes (December 21, 1907 – April 24, 1989) was an American pediatrician and infectious disease researcher. He was the first to isolate rotavirus, he demonstrated that the Japanese encephalitis virus is transmitted by mosquitoes, and he discovered that vitamin D increases intestinal absorption of calcium. He spent his early career at Johns Hopkins Hospital and later became the chief of pediatrics at Mount Sinai Hospital in Manhattan and a professor at the Icahn School of Medicine at Mount Sinai.

Michael_Francis_Gibson

Michael Francis Gibson (18 July 1929 – 7 June 2017) was an American art critic, art historian, writer and independent scholar, who published regularly in the International Herald Tribune, 1969–2004 and occasionally in other publications in English (the New York Times, Art in America, Art News), and French (L'ŒIL, Connaissance des Arts). From 1956 on, Gibson published a number of books, articles, essays and poems in both English and French.