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Neurospora experiment P-1037. Quarterly progress report to the National Aeronautics and Space Administration, October 1--December 15, 1966

Description: The main values of the 302 gantry exercise were to check the preparation of the Neurospora experiment and the spacecraft loading procedure under timed conditions and to provide final assurance that necessary operations can be completed with appropriate inspection in the allotted time. Because of the brief time interval between the 302 Gantry Exercise and the scheduled Biosatellite A flight, no attempt was made to assay for forward-mutation frequecies; however, biocompatibility tests were perfor… more
Date: December 1, 1967
Partner: UNT Libraries Government Documents Department
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Status Report No. 1 on Clinch River Study

Description: A study of the Clinch River below Oak Ridge National Laboratory was initiated in Feb. 1960 to obtain fundamental information on the physical, chemical, and biological dy namics of this fresh-water stream which receives large volumes of low-level radioactive wastes. The fate of radioactive materials discharged to the river, the mechanisms of dispersion of radionuclides released to the river, the direct and indirect hazards of current disposal practice in the river, and the over-all usefulness of… more
Date: August 1, 1961
Creator: Morton, R.J. ed.
Partner: UNT Libraries Government Documents Department
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Biometric Analysis of a Growth Response of Two Plant Species in a Radioactive Waste Area

Description: Lengths of pistillate inflorescences of sedges (Carex spp.) growing in the contaminated soils of White Oak Lake bed were measured in relation to radiation fields. Carex Frankii Kunth and Carex vulpinoidea Michx. populations were sampled from areas with air dose rates of 0, 10, 20, and 40 mr/hr. Analyses of variance showed that mean lengths of inflorescences of C. vulpinoidea were simllar to each other in these areas but that those of C. Frankii were significantly different. However, the sites d… more
Date: April 25, 1960
Creator: Plummer, G. L.
Partner: UNT Libraries Government Documents Department
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Insect Species on Vegetation of the White Oak Lake Bed, Oak Ridge, Tennessee

Description: White Oak Lake, Oak Ridge, Tennessee, received lowlevel radioactive wastes from Oak Ridge National Laboratory for 12 years prior to draining in 1955. Studies on the insects inhabiting the vegetation on White Oak Lake bed revealed 401 species present during 1956 and 1957. Most numerous were members of the insect Orders Hymenoptera, Diptera, and Coleoptera. In the summer of 1956, the first summer following draining of the lake, there were relatively fewer species of insects represented by large n… more
Date: April 20, 1961
Creator: Howden, H. F. & Crossley, D. A., Jr.
Partner: UNT Libraries Government Documents Department
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Ecological Sampling and Meteorological Calculation of Fallout on Forests Near Oak Ridge

Description: Spatial patterns of radioactive contuamination on forest foliage were measured by gamma spectrometry and are discussed with respect to local vs. world- wide origin of the fallout and implications for ecology, health physics, and management of nuclear facilities. In September 1959, I/sup 131/ on dogwood leaf samples varied from over 500 mu mu c/g dry wt near Oak Ridge National Laboratory stacks to 1 to 7 mu mu c/g near the margins of the Oak Ridge Reservation. Stack fallout tended to occur close… more
Date: September 20, 1961
Creator: Olson, J.S.
Partner: UNT Libraries Government Documents Department
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Four Short Articles on Genetics of Maize

Description: Studies carried on since 1956 indicate that the prosaic breeding procedure of sibbing among the most perennial segregates in the hybrid of 4n maize x 4n perennial teosinte quickly restores perennialism to 50% maize tetraploids through increasing the expression of the rhizomatous habit under selection pressure. Similarly, only two generations of selection at the 75% maize level have resulted in a progressive recovery of the perennial expressive. A high degree of maize-likeness therefore appears … more
Date: March 12, 1963
Creator: Brookhaven National Laboratory
Partner: UNT Libraries Government Documents Department
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INFLUENCE OF RADIATION FROM AN UNSHIELDED REACTOR ON A NATURAL MICROFLORA

Description: The soil microflora and its respiratory activity were measured in soil cores collected at different distances from an unshielded reactor. No direct correlation was found between dose received and microbial counts or respiration. Indication of a correlation between dose and microbial respiration was obtained after eliminating the overriding influence of moisture. Radiation probably affected the soil microflora through damage to the phanerogam vegetation rather than directly. This preliminary stu… more
Date: October 19, 1961
Creator: Witkamp, M.
Partner: UNT Libraries Government Documents Department
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Genetic Control of Nicotiana Plant Tumors

Description: Technical report summarizing the evidence that "the capacity for spontaneous tumor formation is certain Nicotiana hybrids is genetically controlled and that genetic change during plant development, i.d. somatic mutation, is not causal to tumor formation." from the introduction.
Date: June 19, 1962
Creator: Smith, Harold H.
Partner: UNT Libraries Government Documents Department
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Health Physics Division Annual Progress Report, July 31, 1962

Description: Report documenting research and developments made by the Health Physics Division of the Oak Ridge National Laboratory.
Date: 1962
Creator: Oak Ridge National Laboratory. Health Physics Division.
Partner: UNT Libraries Government Documents Department
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Use of Neutron Irradiations in the Brookhaven Mutations Program

Description: In brief, these facilities consist of a 250 KvP X-ray generator; two areas of a research reactor, one a well thermalized unit of moderate capacity and a larger area with a mixed thermal and fast neutron distribution, all of which are used for brief, acute exposure. A 10 acre field, currently with almost 4000 curies of cobalt 60, serves to irradiate entire plants for either short or long periods of time. Recently, the flux density of the thermal column was increased by a factor of 5 over the ori… more
Date: November 13, 1963
Creator: Miksche, J. P. & Shapiro, S.
Partner: UNT Libraries Government Documents Department
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USE OF NEUTRON IRRADIATIONS IN THE BROOKHAVEN MUTATIONS PROGRAM

Description: Many plant species were irradiated with x rays, thermal and fast neutrons, andd gamma radiation during the past 10 yr of the cooperative mutations program and adjunct mutation breeding program. Four major concepts and/ or approaches related to the use of mutagenic agents in plant breeding that have evolved are discussed. It was concluded that outcrossing between treated and nontreated populations must be reckoned with, and consequently the two populations should be separated before a true measu… more
Date: January 1, 1963
Creator: Miksche, J.P. & Shapiro, S.
Partner: UNT Libraries Government Documents Department
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