Alexander A. Gurshtein (February 21, 1937- April 3, 2020), Ph.D., passed away in his home in Grand Junction, CO last week. He is survived by his wife, Olga Vorobieva; three children, Kirill, Ksenya, and Michael; four granddaughters, and three great-grandchildren. Alex was born in Moscow, Russia during the height of the Stalinist purges, and his early years were shaped by the privations of World War II and the loss of his father in that war, as well as the anti-Semitism that he, like...