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Chromosomal Aberrations in a Natural Population of Chironomus Tentans Exposed to Chronic Low-Level Environmental Radiation

Description: The salivary gland chromosomes of Chironomus tentans larvae collected from White Oak Creek, an area contaminated by radioactive waste from the Oak Ridge National Laboratory, and from six uncontaminated areas were examined for chromosomal aberrations. White Oak Creek populations were exposed to absorbed doses as high as 230 rads per year or about 1000 times background. Chromosomal maps were constructed to make a general comparison of the banding pattern of the salivary chromosomes of the C. tent… more
Date: January 29, 1964
Creator: Blaylock, B. G.; Auerbach, S. I. & Nelson, D. J.
open access

THE EFFECT OF THE $sub 4$TENDENCY TO REPORT INJURIES$sub 4$ ON MINOR ACCIDENT STATISTICS: A FOLLOW-UP STUDY

Description: Thesis submitted to Univ. of Tennessee, Knoxville. Statistical methods were used in an attempt to determine the effect of the tendency to report accidents on the systemic variance in minor injury data over a 6-yr period. The population surveyed included 245 journeymen of 9 skilled craft groups continuously employed during the period. Results indicate that injury and non- injury visits to the dispensary were relatively stable during the 6-yr period and that there was a significant positive relat… more
Date: February 1, 1964
Creator: Sergent, J.E.
open access

ELECTRON-SLOWING-DOWN SPECTRUM IN Cu OF BETA RAYS FROM Cu$sup 6$$sup 4$

Description: The electron flux spectrum resulting from the slowing down of electrons from /sup 64/Cu uniformly distributed in Cu was measured from 0.1 ev to 37 kev for both a plane disk source and a black body cavity source. The cavity source consisted of a hollow Cu frustrum with walls infinitely thick for /sup 64/Cu beta rays. A matching thick cover allowed only electrons from inside the cavity to enter the Keplertron, a spherical electrostatic beta spectrometer. The cavity data agreed well from 1 kev to … more
Date: May 1, 1964
Creator: McConnell, W. J.; Hubbell, H. H., Jr. & Birkhoff, R. D.
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