1859-1924 1914-2009 1995k-534 2006d-933 20thcentury 500 astrophysicists biography biologists biology borlaug cellularsignaltransduction engineers ericr foodsupply history interviews jacques kandel loeb medicalscientists memory neurobiology neurologists neurosciences nobelprizes normane physicists psychologists q141b849g1995 science scientists triticum unitedstates wz100b735b1974 wz100k1632006