Index Catalog // ScholarsArchive@OSU

Certain physiological and pharmacological effects of radiation on rabbits

Creator:: Wagelie, Edwin Gan
Abstract:: Data were taken, following irradiation exposure to 100r and 300r cumulative dose, on 89 rabbits of three breeds that vary greatly in body size. Hematological, intestinal motility, and ear vascularity examinations were performed. Least square estimates have been obtained and an analysis of variance has been conducted in order estimate...
Resource Type:: Dissertation
Full Text:: Certain Physiological and Pharmacological Effects of

Use of radiation resistant organism as a protectant from lethal effects of irradiation in mice

Creator:: Kilbourn, Joan Priscilla Payne
Resource Type:: Dissertation
Full Text:: irradiation protected some of them from a lethal dose of irradiation. The effect of extracts from the

Effects of radiation on selection progress in mice

Creator:: Womack, James Ernest
Abstract:: The effects of x-irradiation on quantitative genetic traits was investigated by comparing the response of irradiated mice to selection for litter size and 28-day weight with the response to selection for the same two traits in non-irradiated lines. Irradiated lines were maintained at three levels of x-irradiation, 25 r, 50...
Resource Type:: Dissertation
Full Text:: interaction of genetic and physiological factors was assumed to be responsible for the reduced fertility

Effects of radiation on selection progress in mice

Creator:: Womack, James Ernest
Abstract:: The effects of x-irradiation on quantitative genetic traits was investigated by comparing the response of irradiated mice to selection for litter size and 28-day weight with the response to selection for the same two traits in non-irradiated lines. Irradiated lines were maintained at three levels of x-irradiation, 25 r, 50...
Resource Type:: Dissertation
Full Text:: interaction of genetic and physiological factors was assumed to be responsible for the reduced fertility

Radiation inhibition of salt-water adaptation in fish

Creator:: Monie, Herbert Joseph
Abstract:: Four species of euryhaline teleosts (chinook salmon, Oncorhynchus tshawytscha, Walbaum; staghorn sculpin, Leptocottus armatus, Girard; starry flounder, Platichthys stellatus, Pallas; shiner perch Cymatogaster aggregata, Gibbons) were exposed to x-rays. The irradiated animals were maintained in either of two different environments. The effects of x-radiation were determined by observing the percent...
Resource Type:: Masters Thesis
Full Text:: . Analytical Techniques 13 III. RESULTS 15 A. Mortalities 15 B. Physiological Changes 15 C

Effects of x-irradiation on DNA synthesis in salivary gland cells of Drosophila hydei

Creator:: Wong, Patrick Tin-Choi, 1942-
Abstract:: The effect of X-irradiation on DNA synthesis in larval salivary glands of Drosophila hydei was studied using the technique of liquid scintillation spectrometry and autoradiography. DNA synthesis in salivary glands of synchronized larvae was measured at successive stages of third instar development by in vitro uptake of ³H-thymidine for a...
Resource Type:: Dissertation
Full Text:: Paul A. Roberts The effect of X-irradiation on DNA synthesis in larval salivary glands of Drosophila

The visual response of the purple shore crab, Hemigrapsus nudus, to ionizing and non-ionizing radiation

Creator:: Jordan, Neil Michael
Abstract:: Bioelectric responses from the isolated eye of the purple shore crab were measured by the electroretinogram with stimulation by light from wavelengths of 250 to 800 nm, strontium-yttrium-90 beta radiation, 17.5 keV x-radiation, and 3-cm microwaves. Peak sensitivities to light stimulation were found at 350 and 500 nm. These peaks...
Resource Type:: Masters Thesis
Full Text:: even when the eye was excised. A temperature effect was also noted by this author, in which an

Behavioral and electrophysiological evidence for the mechanisms involved in the detection of ionizing radiations by the crayfish Pacifastacus trowbridgii

Creator:: Rodriguez, Adrian
Abstract:: The light-adapted crayfish, Pacifastacus trowbridgii (Stimpson, 1957), displayed a behavioral response to exposure to 300 kV x-rays at exposure rates of 10 to 30 R/s. Within this range, the proportion of subjects that responded increased with an increase in exposure rate. The response latency was inversely proportional to the exposure...
Resource Type:: Dissertation
Full Text:: - physiological tests. The presence of chemoreceptors was indicated by responses elicited after administration of

The uptake and retention of cesium-134 in Microtus canicaudus Miller

Creator:: Lei, Wayne
Abstract:: A study was performed to assess the uptake and retention patterns of cesium-134 in the gray-tailed vole, Microtus canicaudus Miller. To furnish a realistic source of contaminated food for the voles, wheat seedlings were raised in hydroponic solutions to provide radiocesium labeled wheat clippings. The hydroponic system was designed to...
Resource Type:: Masters Thesis
Full Text:: relatively high energies of emitted radiation (Davis, 1963). In addition, cesium is a physiological analog

Effects of fractionated radiation doses on survival times of the newt (Taricha granulosa)

Creator:: Campbell, Carol Lee
Abstract:: This was a study designed to determine the occurrence of recovery from radiation damage in Taricha granulosa. Irradiation with either gamma or x-ray sources in the range of 96-10,000 rads was given. (The mean or median survival times were determined.) Doses were fractionated and the survival times for the same...
Resource Type:: Masters Thesis
Full Text:: greatest importance. If the fractionation interval was too short, a merely additive effect of the

The lethal response of the roughskin newt, Taricha granulosa (Skilton), to ultraviolet-B radiation at three fluence rates

Creator:: Michaelis, Barbara
Abstract:: Roughskin newts, Taricha granulosa (Skilton), were exposed to UV-B (280-320nm), UV-A (321-380 nm), and visible radiation from fluorescent sunlamps (Westinghouse FS40) that were filtered with cellulose acetate film. UV-B controls were exposed to irradiation from sunlamps that were filtered with Mylar-D, a polyester film that effectively absorbed UV-B radiation while...
Resource Type:: Masters Thesis
Full Text:: the fluence rate threshold for Taricha. A dose rate effect appears to exist, with respect to LD50

Effects of ⁶⁰Co gamma irradiation on the reproductive performance of the brine shrimp, Artemia

Creator:: Holton, Robert L.
Abstract:: The brine shrimp, Artemia, was used as an experimental organism to study the effects of ⁶⁰Co gamma irradiation on the reproductive performance of an animal population. The total reproductive ability of the brine shrimp was fractionated into various components and the effects of irradiation on each of these components was...
Resource Type:: Dissertation
Full Text:: to the control animals. In all cases, doses of 600 rads or less showed little effect on the

Influence of certain chemicals on the sensitivity of rat embryos to X-irradiation

Creator:: Loawhakasetr, Pathom
Abstract:: The effect of 2-aminoethyl-2-thiopseudourea[superscript .]Br[superscript .]HBr (AET), 2-mercaptoethylamine[superscript .]HC1 (MEA) and trisodium calcium chelate of diethylenetriaminepentaacetic acid (CaNa₃DTPA) on the radiosensitivity of rat fetus was investigated. A total of 1256 fetuses were critically examined. Exposure of rats to 200 r whole-body X-irradiation at 9.5 days of gestation resulted in a...
Resource Type:: Dissertation
Full Text:: CERTAIN CHEMICALS ON THE SENSITIVITY OF RAT EMBRYOS TO X-IRRADIATION Abstract approved The effect of

Effect of x-irradiation upon glucose catabolism in the intact rat

Creator:: Marks, Darrell Lee
Abstract:: Beginning with the discovery of x-rays by Wilhelm Konrad Roentgen in 1895, man has had the capacity to greatly increase radiation levels of his environment, especially with the advent of nuclear weapons in recent years. Radioisotopes are finding progressively wider use in medicine, research, power production, etc., with increased hazards...
Resource Type:: Dissertation
Full Text:: . in Radiation Biology (Name) (Degree) (Major) Date thesis is presented fi'jAy 17 ,/9(?6 Title EFFECT

Dosimetry considerations in the irradiation of biological populations

Creator:: Denovan, James Thomas
Abstract:: The effects of changes in dosimetry conditions on the radiation sensitivity of a constant biological population were determined. The organism used for this study was the strain B of Escherichia coli. The percentage survivals of these cells in an aqueous solution were determined at the same total exposure with different...
Resource Type:: Masters Thesis
Full Text:: FIGURES Figure 1. Typical bacterial growth curve Page 5 2. The effect of the inverse square law

A study of selected behavioral and electro-physiological responses of carpenter ants (Campanotus) to ionizing radiations

Creator:: Martinsen, David Linnebach, 1940-
Resource Type:: Dissertation
Full Text:: A study of selected behavioral and electro-physiological

Gonadotropins in pituitaries of inbred and linecross beef bulls and effects of irradiation of mammalian pituitary glands on their ability to induce in vitro ovulation of frog ovaries

Creator:: North, Warren Arthur
Abstract:: There were two studies involved in the thesis research. In the first study, variation in the amount of adenohypophysis gonadotropins among 22 individual beef bulls were investigated. These bulls represented four inbred lines, and six linecrosses. The bulls were raised in the Oregon State University purebred herd. The bulls were...
Resource Type:: Dissertation
Full Text:: with the 2000 r. level had a depressing effect on ovulation rate. When comparing all rates of ir

The site of action of radio-lethal compounds on Micrococcus radiodurans

Creator:: Manes, Jasper Damon, Jr.
Abstract:: Iodoacetic acid and diphenylamine were used in this study to elucidate the mechanisms of resistance of Micrococcus radiodurans to radiation. This organism, a gram positive, non-spore forming, salmon-pink, tetracoccus has a LD₅₀ of 213,000 R when grown in the absence of radio-modifying agents. M. radiodurans, when grown in media containing...
Resource Type:: Masters Thesis
Full Text:: LD50 for X -rays to 134,000 R. The effect of diphenylamine and iodoacetic acid upon the colored

A comparison of radiation induced lipid changes in Micrococcus radiodurans, Sarcina lutea, and Pseudomonas aeruginosa

Creator:: Ley, Ronald Douglas
Abstract:: Quantity variations in pigments and lipid classes were determined following γ-irradiation of Micrococcus radiodurans, Sarcina lutea, and Pseudomonas aeruginosa. Pigmentation was determined by extraction with organic solvents and measured as optical density at 475 mμ for M. radiodurans and S. lutea, and 410 mμ for Ps. E aetuginosa. Pigments of...
Resource Type:: Masters Thesis
Full Text:: REVIEW 1 3 Previous Investigation on the Lipids of M. radiodurans 3 The Effect of Ionizing

An allometric examination of the relationship between radiosensitivity and mass

Creator:: Bytwerk, David Paul
Abstract:: The results of a review of six decades of existing literature for 50% lethal dose data across a range of phyla are presented. The collected 50% lethal dose data is limited to adult organisms subjected to acute doses of gamma radiation. The data collected is examined to determine whether useful...
Resource Type:: Masters Thesis
Full Text:: . Rules and regulations dealt exclusively with the effect of radiation on h. sapiens, reasoning that

Ecological studies in radioactivity in the Columbia River Estuary and adjacent Pacific Ocean : progress report 1 July 1972 through 31 March 1974

Creator:: Cutshall, N. H., Carey, Andrew G., Holton, Robert L., Pearcy, William G., Renfro, William C., and McMechan, Karla J.
Abstract:: This report presents progress accomplished during the 20-month period from 1 July 1972 through 31 March 1974 as part of the program "Ecological Studies of Radioactivity in the Columbia River Estuary and Adjacent Pacific Ocean". This program is a continuing study supported by the Division of Biomedical and Environmental Research...
Resource Type:: Technical Report
Full Text:: --Jennings and Osterberg . . . . . . . . . . . . . . 60 Effect of Gamma Irradiation on the Reproductive

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