Spencer (1923-1994)

Kerry Spencer

The fall of tsarism in Russia in 1917 was the culmination of many factors. It is perhaps widely noted that Nicholas II was not suited to his role as Tsar, mainly due to his character and personality. Resentment of his wife and her involvement with the mystical Rasputin was also widespread and helped contribute to the collapse of the monarchy. Also the state of the country during World War One l...

Spencer-Attix Cavity Theory

Bernard Dwork 1923--1998

Bernard Morris Dwork, “Bernie” to those who had the privilege of knowing him, died on May 9, 1998, just weeks short of his seventyfifth birthday. He is survived by his wife of fifty years, Shirley; his three children, Andrew, Deborah, and Cynthia; his four granddaughters; his brothers Julius and Leo; and his sister, Elaine Chanley. We mention family early in this article, both because it was su...

Carl Djerassi (1923–2015)

Few lives at the top of chemistry and industrial accomplishments in the 20th century have been as remarkable as that of Carl Djerassi, who died in San Francisco on January 30 at the age of 91. To a considerable extent, his life became known as ‘fascinating’, catalyzed by his own portrayal of it. This feature of his persona cannot, and will not, dilute the one major scientifi c contribution he m...

2 Spencer Bloch And

Let X be a smooth, projective algebraic variety over an algebraically closed field k, and let H(X) denote a Weil cohomology theory. The existence of algebraic cycles on X×X inducing as correspondences the various Künneth projectors π : H(X) → H (X) is one of the standard conjectures of Grothendieck, [8], [9]. It is known in general only for the cases i = 0, 1, 2d − 1, 2d where d = dimX. The pur...