L. Van Middlesworth
University of Tennessee
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Featured researches published by L. Van Middlesworth.
Health Physics | 1963
L. Van Middlesworth
A review is presented on the physiologica1 factors involved in the uptake of iodine isotopes (primarily I/sup 131/) from fallout by the thyroid gland in man. Respiratory intake, stable iodine intake, iodide ion metabolism, iodide loss by secretion and excretion, maternal, feta1, and newborn thyroid physiology, and differences in thyroid physiology are discussed. 109 references are included. (P.C.H.)
Journal of Radioanalytical and Nuclear Chemistry | 1977
Ned A. Wogman; R. L. Brodzinski; L. Van Middlesworth
A method of prospecting for uranium and thorium is proposed based on uptake of their radioactive daughters226Ra and228Ra by plants, the collection of plant material by herbivores, the concentration of the radioactive species by specific animal tissues, and the subsequent gamma-ray analysis of the tissues.
Health Physics | 1975
L. Van Middlesworth
In mid-1974 a small increase of
Science | 1966
L. Van Middlesworth; Pelayo Correa; Richard W. Perkins; A. T. Keane
sup 131
Nature | 1964
L. Van Middlesworth
I was observed in animal thyroids following a nuclear test in China. In late 1974 there was no public announcement of an atmospheric nuclear test in the Northern Hemisphere, but
Nature | 1958
L. Van Middlesworth
sup 131
Experimental Biology and Medicine | 1956
G. L. Howell; L. Van Middlesworth
I was readily measured in animal thyroids. This latter increase occurred while animals in the Southern Hemisphere accumulated
Experimental Biology and Medicine | 1948
L. Van Middlesworth; R. L. Banner; F. Lawson; E. M. Cox
sup 131
International Journal of Nuclear Medicine and Biology | 1975
O.L.V. Ekpechi; L. Van Middlesworth; Gloria Cole
I from nuclear tests in the Southern Hemisphere. It is suggested that in late 1974 the Northern Hemisphere was contaminated by either late fallout from tests in June or by interhemispheric mixing or by a combination of these sources. (auth)
Experimental Biology and Medicine | 1971
L. Van Middlesworth; B. Jasani; Kn Sinha
Uranium and thorium daughters are ten times more concentrated in thyroids from some bovine animals than in the teeth of the same animals. These radioactive isotopes are believed to be from natural sources, but their resulting annual dosage of thyroid radiation has exceeded that from iodine-131 fallout.