Atom Bomb Cataracts: David G. Cogan, S. Forrest Martin, and Samuel J. Kimura.654 Cyclotron-induced Radiation Cataracts: P. H. Abelson and P. G. Kruger.655 Sodium 2-Methyl4-Dimethylaminophenylphosphinite, a Probable Methyl Donor: G. Moruzzi, C. A. Rossi, and A. Rabbi. 657 Application of Perchloric Acid Technique to Protozoa: B. R. Seshachar and Eleanor Weiss Flick .659 The Use of Triphenyltetraz...

The biologist Paul Ehrlich came to public attention in 1968 with the publication of his book, The Population Bomb. Worries about the potential problems of a soaring global population had boiled and cooled over previous decades. And the issue had become so enmeshed with political decisions that many just wished to ignore it. The warnings of Thomas Malthus, the eighteenth century writer who had h...

Media reports of deaths and devastation produced by atomic bombs convinced people around the world that all ionizing radiation is harmful. This concentrated attention on fear of miniscule doses of radiation. Soon the linear no threshold (LNT) paradigm was converted into laws. Scientifically valid information about the health benefits from low dose irradiation was ignored. Here are studies which...

A chromosome analysis was performed on cultured bone marrow fibroblasts (CFU-F) from two atomic bomb survivors exposed within 1 km of the hypocenter, whose estimated radiation dose is 357 rad and 365 rad respectively. In CFU-F of both cases, stable types of chromosome aberrations were detected. The rate of these chromosome aberrations related well to the chromosome aberration rate of peripheral...

The authors report a unique case in which an angiosarcoma arose from skeletal haemangiomatosis in a 72 year old man. This patient had a history of atomic bomb irradiation more than 50 years ago. Radiographically, the patient had multiple sclerotic foci of benign haemangiomas in the pelvis, the sacrum, and the left femur. The patient developed a high grade angiosarcoma in the left pubic bone. It...

EUKEMOGENESIS induced by repeated exposures to x-ray and other forms of radiation energy has long been recognized in man and in experimental ammals.’3 The explosion of the atomic bombs in Japan exposed two large human populations to single brief but massive doses of ionizing irradiation and subsequently a marked increase in leukemia among survivors was reported.4 ‘ The present study consists of...

We study the problem of decoding secret messages encrypted by the German Army with the M3 Enigma machine after September 15, 1938. We focused our attention on the algorithmization and programming of this problem. A completion and optimization of Zygalski’s sheets method were presented previously. We describe below the missing algorithm solving the problem of the plugboard settings with an algeb...