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Filtering by: Alternative title ssim No. 15 Remove constraint Alternative title ssim: No. 15 Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.) Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • Approaches to the synthesis of trichothecenes

    Creator:
    Kim, No-soo
    Resource Type:
    Dissertation
    Full Text:
    Abstract of the Thesis of No-Soo Kim for the degree of Doctor of Philosophy in Chemistry presented on

  • Seedling recruitment of hairy nightshade and other summer annual weeds in irrigated row crops

    Creator:
    Peachey, Ronald Edward
    Abstract:
    This study evaluated the effects of tillage system, rotational tillage sequences, and winter seed burial depth on weed seedling recruitment in irrigated cropping systems. Notill (NT) planting of vegetable crops reduced emergence of hairy nightshade by 77 to 99% and Powell amaranth emergence from 50 to 87% compared to conventional...
    Resource Type:
    Dissertation
    Full Text:
    30.7 C was more than 15 times greater for seeds buried at 6, 13 and 25 cm than when buried at 1 cm in

  • At what level has standards-based education reform initiatives influenced Oregon high school history instruction and classroom practices?

    Creator:
    Lowe, Eric V.
    Abstract:
    The purpose of this dissertation is to investigate Oregon public high school history teacher perspectives concerning standards-based reform initiatives springing from the No Child Left Behind legislation. The central question addressed in this study is: At what level has Standards-Based Education reform initiatives impacted Oregon high school history instruction and...
    Resource Type:
    Dissertation
    Full Text:
    perspectives concerning standards-based reform initiatives springing from the No Child Left Behind

  • Just a tool after all? No evidence for tool-use effects on the body representation across virtual and real environments

    Creator:
    Bell, Joshua D.
    Abstract:
    While human tool-use proficiency helped define our history, the cognitive and perceptual mechanics of how humans use tools are not fully understood. This question is of great value to the design of hand-held tools and prosthetics. A prominent theory, tool embodiment, suggests that tool use is facilitated by a flexible...
    Resource Type:
    Dissertation
    Full Text:
    . Bell for the degree of Doctor of Philosophy in Psychology presented on March 15 2023. Title

  • Identification of intracellular trafficking signals contained within the vaccinia virus F13L protein

    Creator:
    Honeychurch, Kady M.
    Abstract:
    The F13L protein is the major envelope antigen of vaccinia virus, the prototypic member of the Orthopoxvirus genus. F13L is 372 residues in length and is essential for the formation of wrapped forms of virus. F13L contains a number of potential functional domains including a palmitylation site, a phospholipase domain...
    Resource Type:
    Dissertation
    Full Text:
    personally and professionally. I could not have asked for a better friend and I hope that no matter where

  • Enhanced production of Pacific dulse (Palmaria mollis) for co-culture with abalone in a land-based system

    Creator:
    Demetropoulos, Carl Lee
    Abstract:
    Palmaria mollis (Pacific dulse) is increasingly being used in land-based marine aquaculture. This work elucidates nutrient, inorganic carbon, light, salinity, and temperature requirements of P. mollis as food for abalone species. Nutrient additions every 5 to 7 days resulted in no significant difference in P. mollis growth compared with daily...
    Resource Type:
    Dissertation
    Full Text:
    significantly increased growth compared with a constant daily temperature of 15° C. There was no significant

  • Optimal harvesting of continuous age structured populations

    Creator:
    Smith, Steven J.
    Abstract:
    We investigate the optimal harvesting strategies for McKendrick type population models. Models of this type endow the population with a continuous age structure. They consist of a partial differential equation with a boundary condition which involves an integral of the solution. We study two problems, the first concerns the yield...
    Resource Type:
    Dissertation
    Full Text:
    harvesting at no more than three specific ages. The optimal harvesting ages are dependent on the birth and

  • Husbandry stress of Zebrafish, Danio rerio

    Creator:
    Ramsay, Jennifer Mara
    Abstract:
    Zebrafish, Danio rerio, are widely used as vertebrate research organisms yet little is know about their responses to husbandry stressors. This dissertation examined the whole-body cortisol responses of zebrafish to husbandry stress. Additionally, the effects of stress on the susceptibility to mycobacteriosis and microsporidiosis (Pseudoloma neurophilia) were determined including effects...
    Resource Type:
    Dissertation
    Full Text:
    peaked at 15 min post-net-stress. Cortisol recovered to control levels by 60 min. The variability in

  • Properties of anti- Aeromonas salmonicida antibodies from juvenile coho salmon (Oncorhynchus kisutch)

    Creator:
    Cisar, John Ormond
    Abstract:
    After parenteral immunization with Aeromonas salmonicida cells, the agglutination activity in juvenile coho salmon (Oncorhynchus kisutch) serum was associated with the macroglobulin serum fraction. Antibody activity was diminished by 30 minutes exposure to 50 C but not 45 C. Reduction with 2-mercaptoethanol and alkylation markedly lowered but did not completely...
    Resource Type:
    Dissertation
    Full Text:
    bacterial cell wall immune complexes with 15 percent NaCI. The procedure resulted in the recovery of about

  • Finite elements analysis of circular cell bulkheads

    Creator:
    Kittisatra, Likhit
    Abstract:
    A mathematical model is developed for the analysis of circular cell bulkheads subjected to gravity loads of cell fill, backfill, lateral pressure, and surcharge load using the finite element method. The finite element circular cell model consists of axisymmetric triangular and/or quadrilateral ring elements for soil and cylindrical shell elements...
    Resource Type:
    Dissertation
    Full Text:
    elastic, isotropic and non-homogeneous materials. It is assumed that there is no slippage in the soil