Search Constraints

Start Over
Filtering by: Creator Lowry, Malcolm B. Remove constraint Creator: Lowry, Malcolm B. Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

Search Results

  • Developing a system of mutagenesis in Francisella tularensis LVS

    Creator:
    Flax, Lindsay A.
    Abstract:
    Francisella tularensis is a gram-negative facultative intracellular coccobacillus that primarily infects macrophages. The causative agent of tularemia, this bacterium is considered among the most infectious organisms known, requiring fewer than ten organisms to cause disease. Although ubiquitous in nature, transmission to humans is rare but can occur via insect bites,...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: Malcolm Lowry Francisella tularensis is a gram-negative facultative intracellular

  • Chromatophores as cell-based biosensors for the detection of chemically and biologically toxic substances

    Creator:
    Dukovcic, Stephanie R.
    Abstract:
    Cell-based biosensors are function-based detectors that use the physiological response of a living cell to sense biologically stimulating agents. This emerging technology extends the application of current detection methods by reporting on the toxicity of a sample and the potential to cause disease. Previously, Betta splendens erythrophores have been described...
    Resource Type:
    Dissertation
    Full Text:
    committee members; Dr. Malcolm Lowry for his unmatched enthusiasm, thoughtful insight and helpful advice

  • The Effects of a Dietary Immunomodulatory Supplement on the Immune-Metabolic Axis in Growing Beef Cattle

    Creator:
    Armstrong, Shelby A.
    Abstract:
    To evaluate the immunologic and metabolic effects of OmniGen-AF® (Phibro Animal Health corporation, Quincy, IL; OG) supplementation in growing beef cattle, we designed three studies using replacement beef heifers (8.5 and 10.5 months of age) and steers supplemented across backgrounding, transition, and finishing periods. In Study 1, the effect of...
    Resource Type:
    Dissertation
    Full Text:
    liver cell damage induced by high concentrate feeding as indicated by AST (A) and GGT (B

  • Identification of an aerotaxis transducer in Vibrio cholerae

    Creator:
    Boin, Markus A.
    Abstract:
    The ability to move towards favorable environmental conditions, called chemotaxis, is common among motile bacteria. In particular aerotaxis has been extensively studied in Escherichia coli. Three putative aer gene homologs were identified in the V. cholerae genome designated VCAer-1 (VC0512) VCAer-2 (VCA0658), and VCAer-3 (VCA0988). Deletion analyses indicated that only...
    Resource Type:
    Masters Thesis
    Full Text:
    responsible for the large volume of diarrhea produced by patients (23). The B-subunit binds to the GM1

  • Wildlife Health in Managed Forests : Immunity and Infectious Diseases in Wild Rodents of Oregon

    Creator:
    Hanselmann, Rhea
    Abstract:
    With continual and worldwide human population growth, our impact on the natural environment expands and intensifies every day. We consume natural resources, burn fossil fuels, and release toxic compounds into the air, water, and earth. We build roads that fragment the landscape, construct new settlements, and develop agricultural lands in...
    Resource Type:
    Dissertation
    Full Text:
    , including current members Julia Burco, Malcolm Lowry, Rebecca Terry, and my Graduate Council

  • Rift Valley fever in African buffalo (Syncerus caffer) : basic epidemiology and the role of bovine tuberculosis coinfection

    Creator:
    Beechler, Brianna
    Abstract:
    Rift Valley fever (RVF) is a mosquito-borne zoonotic viral disease native to the African continent. Outbreaks tend to occur in the wet seasons, and can affect numerous mammalian species including African buffalo. It is debated how the virus survives the inter-epidemic period when it is not detected in mammalian populations,...
    Resource Type:
    Dissertation
    Full Text:
    1996-2012 by geographic location (A) and year (B). Filled in squares denote sample sites where at

  • Structure-function analysis of the vaccinia virus I7L proteinase

    Creator:
    Moerdyk, Megan J.
    Abstract:
    Vaccinia virus is the prototypic member of the Orthopoxvirus genus. It undergoes a complex replication process where a key step in the transition from immature virion to intracellular mature virion is the cleavage of the major core protein precursors. The product of the I7L open reading frame (ORF) is a...
    Resource Type:
    Masters Thesis
    Full Text:
    thank my committee members Dr. Malcolm Lowry and Dr. Patricia Wheeler for graciously agreeing to serve

  • Some effects of meteorological processes on the air quality in Medford, Oregon

    Creator:
    Pavelka, Boris R.
    Abstract:
    In Medford, Oregon, the major source of pollution is the lumber mill waste burner. Its low combustion efficiency results in the emission of large quantities of particulate into the atmosphere. Due to the influence of the atmospheric radiation inversion and possibly the poor performance of the burners at the time...
    Resource Type:
    Masters Thesis
    Full Text:
    ACKNOWLEDGMENTS I wish to express my gratefulness for the unselfish cooperation of Dr. William Lowry

  • Relationships between air quality and thermal structure of the lower atmosphere at Salem, Oregon

    Creator:
    McElroy, James L.
    Abstract:
    The examination in some detail of the relationships between air quality and the thermal structure of the lowest layers of the atmosphere constituted the primary objective of this thesis. Data for the study were assembled during April-June 1965 at the U.S. Weather Bureau Station, McNary Field, Salem, Oregon. The measures...
    Resource Type:
    Masters Thesis
    Full Text:
    for the degree of MASTER OF SCIENCE June 1966 APPROVED: Assistan `P_ e of B. meteorology

  • Purification and properties of the polygalacturonases produced by Fusarium oxysporum f. sp. lycopersici

    Creator:
    Harman, Gary Elvan, 1944-
    Abstract:
    This study was undertaken to determine the sorts of polygalacturonases present in the culture filtrate of Fusarium oxysporum f. sp. lycopersici, to purify and characterize these enzymes, and to study any complexes that may form between polygalacturonase and carbohydrate not degraded by the enzyme. The polygalacturonase in culture filtrate consists...
    Resource Type:
    Dissertation
    Full Text:
    Redacted for PrivacyAbstract approved: Dr. Malcolm E. Corden This study was undertaken to determine the