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  • Ova tranfers in sheep and rabbits : studies on material influences and irradiation damage

    Creator:
    Hunt, William Lynn
    Abstract:
    The first study utilized ova transfer in sheep and involved hormonal treatments for synchronization of estrus and superovulation in an investigation of crossbred maternal influences on inbred and linecross lambs. Synchronization of estrus in ewes was achieved effectively with either oral progestogen, 6 α-methyl-17α-hydroxy-progesterone acetate (60 mg./ewe/day), or intramuscular injections...
    Resource Type:
    Dissertation
    Full Text:
    to uteri of recipients (X463), Figure 6. 33 No clear effect on the ewers ability to be

  • Dose to the female breast from nuclear medicine and diagnostic radiology

    Creator:
    Patel, Aarti
    Abstract:
    There has been increased concern about radiation dose to the female breasts, with approximately 200,000 new breast cancers being diagnosed each year in the United States. The unprecedented increase in the use of radiologic exams on younger women has also raised some additional concerns about how procedures are performed. The...
    Resource Type:
    Masters Thesis
    Full Text:
    Patel for the degree of Master of Science in Radiation Health Physics presented on July 18,2008

  • The effects of gamma radiation on Cascade hop

    Creator:
    Getty, Brooke
    Abstract:
    This gamma irradiation study was conducted to establish an LD50 of the hop (Humulus lupulus L.) cultivar Cascade . The overall, long term goal is to generate replacement hop cultivars by inducing minor but significant DNA alterations with gamma radiation to improve agronomic quality without changing the brewing profile. The...
    Resource Type:
    Presentation
    Full Text:
    The Effects of Gamma Radiation on Cascade Hop By Brooke Getty Research

  • In Utero Exposure to Arsenic and Mercury : Epigenome-Wide Associations and Newborn Health Outcomes

    Creator:
    Cardenas, Andres
    Abstract:
    Mercury and arsenic are known developmental toxicants and environmental exposures are ubiquitous worldwide from natural and anthropogenic sources. Prenatal exposure to both contaminants are independently associated with adverse perinatal health outcomes and latent disease risk that could be in part mediated by epigenetic reprogramming events. Fetal programming events involving DNA...
    Resource Type:
    Dissertation
    Full Text:
    methylation in different biological human tissues. Particularly, the effect of arsenic exposure on

  • Ultraviolet radiation as an environmental stressor of amphibians

    Creator:
    Bancroft, Betsy A.
    Abstract:
    My thesis explored the effects of and potential mediating mechanisms for an important environmental stressor, ultraviolet-B (UVB) radiation. UVB radiation has negative effects on organisms in both terrestrial and aquatic systems. I used meta-analysis to quantify the effects of UVB radiation on a diversity of aquatic organisms (Chapter 2). UVB...
    Resource Type:
    Dissertation
    Full Text:
    radiation on survival ……………………………….. 57 2.3 The effect of UVB radiation on growth ………………………………… 58 2.4

  • 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:
    2 Effect of Ultraviolet Light and X -rays on Micro- organisms 3 Modification of Radiation

  • 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:
    effect of y- radiation on lipid classes of M. radiodurans, S. lutea, and Ps. aeruginosa. Quantitative

  • Reduction of microbial population of seafood by radiation pasteurization

    Creator:
    East, Dorothy May
    Resource Type:
    Masters Thesis
    Full Text:
    provide information on the usefulness of pasteurization radiation for fishery products. In this regard

  • Design techniques for radiation hardened-phase locked loops

    Creator:
    Nemmani, Anantha Nag
    Abstract:
    Spacecrafts experience radiation in the course of their operation and all electronic equipment on board these spacecrafts has to be designed to withstand the effects of this radiation. This thesis describes the effects of total ionization dose (TID) and single event transients (SET) in phase-locked loops - an important circuit...
    Resource Type:
    Masters Thesis
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 EFFECTS OF RADIATION ON PHASE-LOCKED LOOPS . . . . . . . . . . . . 3 2.1 Effect of total

  • Physiological studies on radiation resistant bacteria occurring in food

    Creator:
    Duggan, Dennis Edward
    Resource Type:
    Dissertation
    Full Text:
    Effecta on Matter • 5 Radiation Chemist17 • • • • • • • • • • • • • 7 Effects of Ionizing Radiati on