Y is for Roslyn Sussman Yalow – Medical Physicist
++ A to Z of Notable Women in STEM ++
Roslyn Sussman Yalow (1921- 2011) was a medical physicist. In 1977, she and tow others won the Nobel Prize in Physiology or Medicine for the development of the radioimmunoassay (RIA) technique.

The RIA technique makes it possible to screen blood donations for various diseases, such as hepatitis. It was originally devised to measure insulin levels in diabetics.
You can read more about Dr. Yalow here.
See more notable women of STEM in my contribution to the April A to Z blogging challenge for 2016.
Add your own “Y”-named women to the list in the comments below!