Showing papers by "John E. Christian published in 1965"
TL;DR: The results are of value to researchers in general and researchers in physical education in particular for estimating gross body composition using certain physical performance items.
Abstract: The purpose of the study is: (a) to determine the relationships between body composition and physical peformance and related items; and (b) to determine whether or not certain physical performance and related items might be useful in estimating body composition in terms of total lean body mass and percent lean body mass as measured by potassium-40 determinations in adult men. Data on 19 physical performance items were obtained from 40 subjects between 21 and 57 years of age. The results are of value to researchers in general and researchers in physical education in particular for estimating gross body composition using certain physical performance items.
37 citations
TL;DR: Whole body liquid scintillation counting, in conjunction with the radioactive isotopes 24 Na and 42 K, was utilized to determine directly the retention of the isotopes in swine during control and diuretic treatment.
6 citations
TL;DR: A new nuclear in vitro continuous dissolution-rate measuring method has been developed and evaluated for use in determining the dissolution release rates of labeled materials from solid dosage forms and was found to be more precise than either the U.S.P. or rotating-bottle method.
5 citations
4 citations
TL;DR: Previous administration of carrier iodine, in the form of potassium iodide, to calves decreased the whole body retention of subsequently administered Iodine-131 by approximately one-half after 23 days.
1 citations
TL;DR: In this article, the design and operating characteristics of a liquid scintillation test tank for evaluating large photomultiplier tubes are described, and the detector tank was a 16 in. diameter by 6 1 2 -in. deep cylinder filled with PPO and POPOP in toluene and mounted with a 16-in. photomULTiplier tube.
1 citations