Atomgewichte f�r 1918

Couverture FR

The HST view of the FR I / FR II dichotomy ⋆

In order to explore how the FR I / FR II dichotomy is related to the nuclear properties of radio galaxies, we studied a complete sample of 26 nearby FR II radio galaxies using Hubble Space Telescope (HST) images and compared them with a sample of FR I previously analyzed. FR I nuclei lie in the radio-optical luminosity plane along a tight linear correlation, which argues for a common synchrotro...

Michael Stoker 1918–2013

Michael Stoker Sir Michael Stoker, a pioneer of virology and the cell biology of cancer cells, died on 13 August at the age of 95. Viruses have always been useful tools for probing the workings of cells, and Michael exploited tumor-causing viruses to gain a better understanding of oncogenic mechanisms at the dawn of the molecular biology of animal cells. During a long career, Michael not only m...

Howard Schachman (1918–2016)

Howard Schachman, renowned physical chemist and protein chemist, professor at the University of California, Berkeley, extraordinary teacher, and a lifetime fighter for civil liberties, died on August 5 in Oakland California at age 97 from complications of pneumonia. Schachman’s active career spanned fundamental work on virus structure, the development of the analytical ultracentrifuge and its u...

Julian Schwinger ( 1918 - 1994 )

Julian Schwinger’s influence on Twentieth Century science is profound and pervasive. Of course, he is most famous for his renormalization theory of quantum electrodynamics, for which he shared the Nobel Prize with Richard Feynman and Sin-itiro Tomonaga. But although this triumph was undoubtedly his most heroic accomplishment, his legacy lives on chiefly through subtle and elegant work in classi...