Download or read book Biological Effects of Nuclear Radiation on the Monkey Macaca Mulatta written by John E. Pickering and published by . This book was released on 1959 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Effects Of Nuclear Radiation On The Monkey Macaca Mulatta written by and published by . This book was released on 1958 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: Macaca mulatta monkeys were exposed to neutron and gamma radiation as one phase of an extensive animal program designed to yield a better under standing of the biological effects of ionizing radiation. Exposure distances were chosen on the basis of dose vs. distance data obtained during Operation Teapot and on the desired biological responses. In both shots in which Project 39.6 participated, the radiation dose required to produce death in 30 days in 50 per cent of the animals was determined. All animals were followed for acute radiation effects, and, where no mortality occurred, they are being followed for long-term effects such as cataract production, bone-marrow change, shortening of life span, and carcinogenesis. Ultimately the long-term findings will be compared with known human data.
Download or read book Biological Effects on Nuclear Radiation on the Monkey Macaca Mulatta written by United States. Defense Atomic Support Agency and published by . This book was released on with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book BIOLOGICAL EFFECTS OF NUCLEAR RADIATION ON THE MONKEY MACACA MULATTA TWO YEAR EVALUATION written by and published by . This book was released on 1959 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Macaca mulatta monkeys were exposed to prompt neutron and gamma radiation from two nuclear detonations. At a period roughly two years postirradiation, the survivors were examined with respect to long-term effects on clinical appearance, peripheral hematology, behavior, and cataractogenesis. Recovery of erythroid indices in shot Wilson survivors was (1) functionally complete by about 9 weeks postexposure, (2) effected by production of larger hyperchromic erythrocytes with a normal hemoglobin concentration, and (3) followed by a possible macrocytic hyperchromic anemia for the majority of the 63- to 540day postexposure period. Lymphocytes of the myeloid series were the last to evidence recovery; the single animal that died exhibited a unique lymphocytic hypoplasia, which suggests a differential effect on the precursor tissue. The results with respect to behavior parameters include (1) differences on preliminary Wisconsin General Test Apparatus training which support the hypothesis of a radiation-induced elevation of response threshold values, (2) learning-performance differences in the male radiation dosage groups which are in accord with previous researches on other groups of monkeys, (3) observed differences between male and female monkeys on both learning performance and free-cage behavior parameters, and (4) a radiation-induced facilitation on difficult size discrimination problems.
Download or read book Biologic Effects of Nuclear Radiation in Primates written by Robert W. Zellmer and published by . This book was released on 1960 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Macaca mulatta primates were exposed to the neutron and gamma radiation of nuclear detonations as one phase of an extensive animal program designed to yield a better understanding of the biological effects of ionizing radiation. A field test utilizing ionizing radiation from nuclear devices was chosen to simulate as closely as possible the conditions of dose rate, and radiation distribution that have occurred in human exposures. In both detonations the radiation dose required to produce death in 30 days for 50 percent of the animals were determined. All animals were followed for acute radiation effects, and where no mortality occurred, they are being followed for long-term effects such as cataract production, bone marrow change, shortening of life span, and carcinogenesis.
Download or read book Latent Effects of Chronic Irradiation on Longevity and the Peripheral Blood Elements of the Monkey Macaca Mulatta written by Donald R. Anderson and published by . This book was released on 1963 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the problem areas of radiation biology is concerned with the latent or long-term effect of the biologic damage that might result from chronic low dose levels of ionizing radiation. This report presents data from a study in the primate, Macaca mulatta, over a period of several years following a chronic irradiation schedule resulting in accumulated doses of 77 to 614 rep of mixed gamma and neutron radiations. Although the circulating blood elements are considered to be sensitive to radiation damage, they recovered, following the irradiation schedule, to essentially normal condition and showed no long-term decrement due to the radiation exposure. Longevity in the limited number of animals utilized also indicated no change due to radiation. (Author).
Download or read book Near term and Late Biological Effects of Acute and Low dose rate Continuous Gamma ray Exposure in Dogs and Monkeys written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Monkeys (Macaca mulatta) and dogs (beagle) were given thirteen 100-rad gamma-ray doses at 28-day intervals. The comparative response (inury and recovery) of the hematopoietic system of the two species was observed at 7-day intervals during the exposure regime. At 84 days after the thirteenth gamma-ray dose, the 1300-rad conditioned and control dogs and monkeys were challenged continuously with gamma rays at 35 r/day until death to determine the amount of radiation-induced injry remaining in conditioned animals as a reduction in mean survival time. Dogs (50%) and monkeys (8%) died from injury incurred during conditioning exposures. Thus, the comparative response (in terms of lethality) of dogs and monkeys to dose protraction by acute dose fractionation was similar to what we would expect from a single acute dose. The mean survival times for nonconditioned dogs and monkeys during continuous exposure at 35 R/day were the same (approx. 1400 h). Thus, the hematopoietic response of the two species by this method of dose protraction was not significantly different. Mean survival times of conditioned dogs and monkeys during the continuous 35-R/day gamma-ray challenge exposure were greater (significant in dogs but not in monkeys) than for their control counterparts. Thus, long-term radiation-induced injury was not measurable by this method. Conditioning doses of more than 4 times the acute LD503° in dogs and approximately 2 times that in monkeys served only to increase both mean survival time and variance in a gamma-ray stress environment with a dose rate of 35 Rat/day.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1984 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements written by and published by . This book was released on 1972 with total page 1404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Medical Consequences of Radiological and Nuclear Weapons written by Defense Department and published by U.S. Government Printing Office. This book was released on 2013-03-14 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOTE: NO FURTHER DISCOUNT FOR THIS PRINT PRODUCT-- OVERSTOCK SALE -- Significantly reduced list price An updated version of the 1989 TMM, this volume addresses nuclear events and their consequences for the medical community. Topics covered include acute radiation syndrome, triage and treatment of radiation and combined-injury mass casualties, treatment of internal radionuclide contamination, behavioral and neurophysiological consequences of radiation exposure, cytogenetic biodosimetry, and more. Textbooks of Military Medicine (TMM). Senior Editor, Anthony B. Mickelson.
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1969-10 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1970 with total page 1424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Radiation and Radioisotopes on the Life Processes Index written by and published by . This book was released on 1963 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Radiation and Radioisotopes on the Life Processes written by Charles M. Pierce and published by . This book was released on 1963 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1965-03 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
