Index Catalog // ScholarsArchive@OSU

Significance of pigments in radiation resistance of Micrococcus radiodurans

Creator:: Krabbenhoft, Kenneth Louis
Abstract:: An ecological study of a microorganism similar to that isolated in 1956 and designated as Micrococcus radiodurans indicated that the organism could be isolated from several different environments. By taking advantage of its radio-resistivity, high levels of gamma radiation were used in the isolation procedures to inactivate most of the...
Resource Type:: Dissertation
Full Text:: Media on Radiation Resistance 48 Relative Effect of Growth and Recovery Medium on Radiation

The response of nitrifying bacteria to treatments of N-Serve and Roundup in continuous-flow soil columns

Creator:: Rhodes, Albert N.
Abstract:: This study examined the effects of Roundup [N-(phosphonomethyl) glycine] and N-Serve [2-chloro-6- (trichloromethyl) pyridine] on nitrifying organisms in static batch, perfusion soil columns, and a new continuous-flow soil column system. The continuous-flow method is new to nitrification studies and was shown to produce greater nitrifier activity than either static batch...
Resource Type:: Masters Thesis
Full Text:: Prosser (1987), on the other 10 hand, examined the effect of surface specificity and attachment on

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

Salinity and temperature interactions and their relationship to the microbiology of the estuarine environment

Creator:: Morita, Richard Y., Jones, Larry P., Griffiths, Robert P., and Staley, Thomas E.
Abstract:: An estuary, unlike the open ocean, is a dynamic system that is continuously undergoing changes in its physical and chemical properties. Marked fluctuations in the levels and kinds of nutrients, temperature, and salinity are normally found in estuarine environments. These changes occur principally as a result of freshwater intrusions, tidal...
Resource Type:: Conference Proceeding and Technical Report
Full Text:: SALINITY (%o) Fig. I. Effect of salinity of the growth medium on the maximal growth temperature of certain

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

Growth and development of tetracycline resistant Chlamydia suis

Creator:: Lenart, Jennifer
Abstract:: Tetracycline is a front line antibiotic for the treatment of chlamydial infections in both humans and animals, and the emergence of tetracycline resistant (tet[superscript R]) Chlamydia is of significant clinical importance. Recently, several tet[superscript R] chlamydial strains have been isolated from swine (Sus scrofa) raised in production facilities in Nebraska....
Resource Type:: Masters Thesis
Full Text:: Microbiology presented on June 28. 2001. Title: Growth and Development of Tetracycline Resistant Chiamydia

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

Formation and optical bleaching of color centers in X-rayed potassium chloride crystals

Creator:: Okamoto, Fumio
Resource Type:: Dissertation
Full Text:: second stage of coloration. There are several experi- ments which show the effect of impurities on the

The irradiation resistance of food pathogens contaminating seafoods

Creator:: Dutiyabodhi, Pisawat
Abstract:: Studies have been made to determine the limits of tolerance to gamma radiation for 15 cultures of the following bacterial species both in culture media and in irradiation-sterilized seafoods (crab-meat, halibut and shrimp) inoculated with Salmonella (seven species), Shigella (three species), and one species each of Neisseria, Myco-bacterium, Esctrerichia, Proteus...
Resource Type:: Masters Thesis
Full Text:: Radiation on Amino Acids Effect of Ionizing Radiation on Lipids Effect of Ionizing Radiation on Enzyrnes

Effects of neutron irradiation on high-purity vanadium

Creator:: Stevens, Richard Francis, Jr.
Abstract:: Because of the potential elevated-temperature applications of high-purity vanadium in nuclear reactors an investigation was conducted to determine the effects of nuclear irradiation upon the properties of the pure metal. The results of this investigation indicated that the effects caused by irradiation, increased strength and hardness and decreased ductility, could...
Resource Type:: Masters Thesis
Full Text:: , for the professional degree of Metallurgical Engineer presented on February 10, 1967 Title

Modeling of the thermal behavior of irradiated sphere-pac mixed carbide fuel

Creator:: Ades, Maurice
Abstract:: Several fuels are being investigated for fast breeder reactor applications. One promising concept is sphere-pac mixed carbide fuel. As a part of the development of this fuel concept it is necessary to determine the behavior of the irradiated fuel for safe and reliable operation on a sound economic basis. It...
Resource Type:: Dissertation
Full Text:: ). Effect of Pressure of the Free Gas on the Effective Conductivity of Sphere-Pac Fuel 27(b). Effect of

Physiological responses of the marine phytoplankton Dunaliella tertiolecta to UV-B enhanced solar radiation

Creator:: Scott, James Douglas
Resource Type:: Masters Thesis
Full Text:: Damkaer DM, Dey DB, Heron GA, Prentice EF (1980) Effects of UV-B radiation on near-surface zooplankton of

Response to ultraviolet (UV-B) radiation by attached assemblages of estuarine diatoms

Creator:: Brooker, Deborah L.
Abstract:: Global atmospheric pollution from chlorofluorocarbons has the potential of causing significant reductions in the concentrations of stratospheric ozone. If the production of chlorofluorocarbons were to continue into the future at the rate prevalent in 1977, the steady state reduction in total global ozone could be between five percent to ten...
Resource Type:: Masters Thesis
Full Text:: effort to measure the effect of UV-B radiation on the colonization of new substrates by benthic diatoms

Radiation effects in compound semiconductor heterostructure devices

Creator:: Sarkar, Aveek, 1974-
Abstract:: Radiation studies were performed on compound semiconductor heterostructure devices. The objective was to understand the degradation processes caused by the exposure of these devices to radiation. Preliminary experiments were focussed on studying the degradation phenomenon in single heterojunctions and single quantum wells. It was found that ionizing radiation like gamma...
Resource Type:: Masters Thesis
Full Text:: exposure of these devices to radiation. Preliminary experiments were focussed on studying the degradation

Hormesis effects in pinto beans from ⁶⁰Co gamma radiation

Creator:: Boone, Darren M.
Abstract:: Exposure to moderately high levels of ionizing radiation (<20 Gy) has in some instances shown a hormetic effect in numerous vegetable-type crops. Past experiments performed in outdoor cultivars have shown a somewhat unpredictable increase in growth rate with a higher overall yield in a specified time when the seeds are...
Resource Type:: Masters Thesis
Full Text:: conducted on the subject of radiation hormesis, both in plants and animal type systems. Results while

ScholarsArchive@OSU

Significance of pigments in radiation resistance of Micrococcus radiodurans

The response of nitrifying bacteria to treatments of N-Serve and Roundup in continuous-flow soil columns

Dose to the female breast from nuclear medicine and diagnostic radiology

The effects of gamma radiation on Cascade hop

Salinity and temperature interactions and their relationship to the microbiology of the estuarine environment

Ultraviolet radiation as an environmental stressor of amphibians

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

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

Reduction of microbial population of seafood by radiation pasteurization

Design techniques for radiation hardened-phase locked loops

Growth and development of tetracycline resistant Chlamydia suis

Physiological studies on radiation resistant bacteria occurring in food

Formation and optical bleaching of color centers in X-rayed potassium chloride crystals

The irradiation resistance of food pathogens contaminating seafoods

Effects of neutron irradiation on high-purity vanadium

Modeling of the thermal behavior of irradiated sphere-pac mixed carbide fuel

Physiological responses of the marine phytoplankton Dunaliella tertiolecta to UV-B enhanced solar radiation

Response to ultraviolet (UV-B) radiation by attached assemblages of estuarine diatoms

Radiation effects in compound semiconductor heterostructure devices

Hormesis effects in pinto beans from ⁶⁰Co gamma radiation

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