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Filtering by: Subject Sulphites -- Physiological effect Remove constraint Subject: Sulphites -- Physiological effect Advisor Willis, David L. Remove constraint Advisor: Willis, David L. Degree Level Master's Remove constraint Degree Level: Master's

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  • 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

  • Some possible roles for selenium in the reproductive physiology of the male graytailed vole (Microtus canicaudus)

    Creator:
    Whitfield, Stephen Curtiss
    Abstract:
    The testes of the gray-tailed vole (Microtus canicaudus Miller) exhibited a high affinity for selenium relative to other selected tissues. Uptake of selenium-75 in the testis-epididymis complex was delayed relative to uptake by the whole body, kidney, and liver. This pattern of uptake suggested that selenium was metabolically incorporated into...
    Resource Type:
    Masters Thesis
    Full Text:
    E in the diet, the addition of selenium produced no significant changes in measured physiological

  • 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

  • Uranium biokinetics in gavaged young adult female rats

    Creator:
    Keizer, Philip John
    Abstract:
    Blood, liver, kidney, femur, and ovaries were assayed from female Wistar rats following oral administration of uranyl nitrate. Three uranium concentrations were studied for six time periods ranging from 4 hours to 240 hours following gavage. Uranium burdens of tissues were determined by neutron activation and delayed fission neutron counting...
    Resource Type:
    Masters Thesis

  • 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