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Featured researches published by L. Van Middlesworth.


Health Physics | 1963

FACTORS INFLUENCING THE THYROID UPTAKE OF IODINE ISOTOPES FROM NUCLEAR FISSION--A REVIEW.

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

Radium accumulation in animal thyroid glands a possible method for uranium and thorium prospecting

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

Radioiodine(131I) in animal thyroids during nuclear tests in both hemispheres.

L. Van Middlesworth

In mid-1974 a small increase of


Science | 1966

Radium Isotope Accumulation in Animal Thyroids

L. Van Middlesworth; Pelayo Correa; Richard W. Perkins; A. T. Keane

sup 131


Nature | 1964

LONG-LIFE RADIOACTIVITY IN OCCASIONAL THYROIDS

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

Iodine-131 in Sheep before and after a Nuclear Reactor Accident

L. Van Middlesworth

sup 131


Experimental Biology and Medicine | 1956

Gastric Iodide and chloride Clearances in Dogs.

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

Effects of acute intermittent anoxia upon urinary volume, specific gravity and chloride.

L. Van Middlesworth; R. L. Banner; F. Lawson; E. M. Cox

sup 131


International Journal of Nuclear Medicine and Biology | 1975

Natural 226Ra and 228Th in thyroids of cattle from Nigeria, W. Africa☆

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

Triiodothyronine in feces of rats fed low iodine diet.

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.

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Carole A. Spencer

University of Southern California

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Eduardo Gaitan

University of Mississippi

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John C. Morris

Washington University in St. Louis

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Kn Sinha

University of Tennessee Health Science Center

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A. T. Keane

Massachusetts Institute of Technology

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A. Tenore

University of Tennessee

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B. Jasani

University of Tennessee Health Science Center

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E. M. Cox

University of Tennessee Health Science Center

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