potassium but slightly low in sodium. The nickel, cobalt, and copper contents seem high in the Rongelap rations, manganese content is low, and iron and zinc compare favorably with minimum daily requirements. High levels of Co/sup 60/ and Zn/sup 65/ are associated with each other and with rations containing local fish. The higher levels of Sr/sup 90/ and Cs/sup 137/ are found where local fruit was consumed. Coconut contributes little Sn/sup 90/, and pandanus the most. Rations with higher Zn/sup 65/ also contain higher levels of stable zinc, indicating that local sea foods may be the main source of zinc in the diet. Cs/sup 137/, Sr/sup 90, and Co/sup 60/ show no definite correlation with stable potassium, cobalt, calcium, arid respectively. There is probably a net addition of minerals to Rongelap soils from imported foods. (Public Health Eng. Abstr., vol. 43: Sept. 1963) Descriptors: CALCIUM; CARBOHYDRATES; CESIUM 137; COBALT; COBALT 60; COPPER; DIET; ESTERS; FISH; FRUIT; IRON; MAGNESIUM; MANGANESE; METABOLISM; MINERALS; NICKEL; PHOSPHORUS; POTASSIUM; PROTEINS; QUALITATIVE ANALYSIS; SEA; SODIUM; SOILS; STRONTIUM 90; ZINC; ZINC 65 Subject Codes (NSA): HEALTH AND SAFETY 10/5/132 (Item 132 from file: 247137 NSA-17-037113 109) RADIOEPIDEMIOLOGY--A SEARCH FOR HUMAN STUDY MATERIAL Shilling, C.W. Atomic Energy Commission, Washington, D.C. Rass. Intern. Elettron. Nucl., 7 5 Congr. Nucl., Publication Date: 1960 143-65 p. Journal Announcement: NSA17 Document Type: Journal Article Language: English Rome v3. Since the use of human beings in research likely to be deleterious is prohibited, biomedical experiments must be carried out on various types of animals. It is interesting to note that in a recent census taken in USAEC laboratories, 319,535 fish, foul, and mammals of 25 different kinds were used. Yet in spite of the very best type of animal experimentation, there still remains the problem of translating results obtained in animals to the human, and frequently this is a big step. However, of human exposure to radiation, in searching for cases it was found that a great many radiation experiments have already been accomplished either by nature, activity, medical practice, accidents or incidents of war. industrial The use of radiation in medical practice furnished the largest number of sublects for study----x-ray irradiation on the thymus in young chridren; x-ray pelvimetry in the first trimester of pregnancy; radium salts injected intravenously for mental disease; radium salts injected intravenously for arthritis; use of thorotrast. Industry added the radium chal painters; surveillance fluoroscopy of employees; and accidents involving exposure to radiation. Accidents in testing nuclear weapons resulted in exposure of Japanese fishermen and the natives of Rongelap Atoll. Dropping atomic bombs on Hiroshima and Nagasaki exposed many Japanese. From analysis of human exposure to radiation and from the experimental animal work, it was found that the effects of ionizing radiation may vary from no measurable signs or symptoms, through acute symptoms which may eventuate in death. There also may be chronic sequelae, and there is ample evidence that radiation is a mutagenic agent. More information on the effects of radiation on human populations is needed. There must be many other experiments in other parts of the world that are available for the scientist to study. The monazite sands in India, the Yugoslav reactor accident, the radiation treatment of ankylosing spondylitis in England are examples of studies either completed or contemplated. Instigation of a human radiation exposure year is suggested. (auth) Descriptors: DIAL PAINTERS FLUORESCENCE INDUSTRY PERSONNEL RADIOGRAPHY SAFETY; ACCIDENTS MAN PERSONNEL RADIATION INJURIES REACTORS YUGOSLAVIA; ACCIDENTS ENVIRONMENT FALLOUT HIROSHIMA ISLANDS MAN NAGASAKI NUCLEAR EXPLOSIONS PACIFIC OCEAN POPULATIONS; ENVIRONMENT INDIA MONAZITES RADIOACTIVITY SAND SOILS Subject Codes (NSA): BIOLOGY AND MEDICINE 5003618