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Filtering by: DOI 10.1002/wnan.152 Remove constraint DOI: 10.1002/wnan.152 Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Drivers and Impacts of a Recent Annual Grass Invasion: Ventenata dubia and Fire in the Inland Northwest

    Creator:
    Tortorelli, Claire M.
    Abstract:
    Biological invasions threaten native biodiversity, alter ecosystem function, and are a major cause of economic losses across the planet. The most impactful invaders alter disturbance regimes and initiate state shifts to outside the historical range of variability of the ecosystem. Concern for ecological and economic losses has prompted a rapid...
    Resource Type:
    Dissertation

  • Synthetic studies of nonadrides

    Creator:
    Drapela, Nicholas Ernest
    Abstract:
    An asymmetric approach to the synthesis of byssochlamic acid (1) is described. Regioisomeric enzymatic differentiation is described in the selective hydrolysis of dimethyl ester 30 by porcine liver esterase. Chiral dimethyl ester 42 was prepared by desymmetrization of cyclopentene 34 using porcine liver esterase. A key intramolecular [2+2]cycloaddition-cycloreversion photometathesis of...
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    Dissertation
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    derivative 152 and elaboration of the side chain to provide an efficient route to 164. Initial attempts at

  • The linear and non-linear baroclinic instability in the eastern North Pacific

    Creator:
    Lee, Dong-kyu
    Abstract:
    Using a linear quasi-geostrophic model of large scale spiraling flow and vertical density gradient in the eastern North Pacific, we evaluate the complex dispersion relationships for quasi-geostrophic waves. Our calculations indicate that the geostrophic circulation of the eastern North Pacific can locally convert potential energy to mesoscale kinetic energy on...
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    Dissertation
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    remarkably similar to the Redacted for privacy measurements of open ocean eddies at 28°N and 152°W. It is

  • Factors contributing to preservice teachers' choice of strategies to manage problem behaviors

    Creator:
    Cunningham, Bruce
    Abstract:
    Managing children with problem behaviors is a challenging task for new teachers. Preservice training offers one means of better preparing new teachers to meet this challenge. Before suggesting alterations in preservice training programs, it is necessary to understand how preservice teachers perceive and respond to problem behaviors. Of particular interest...
    Resource Type:
    Dissertation
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    a "withdrawn" or socially immature child. The sample consisted of 152 preservice teachers at

  • Ecohydrologic Connections of Rangeland Ecosystems in Central and Eastern Oregon, USA

    Creator:
    Durfee, Nicole M.
    Abstract:
    In light of water scarcity and the impacts of climate change, there is an increased need to understand the interaction between land use characteristics and ecohydrologic processes in semiarid regions. Additionally, many semiarid and arid regions face various land management challenges, including woody plant encroachment, decreased snowpack, and increased stream...
    Resource Type:
    Dissertation

  • Synthesis of two subunits of avermectin B1a

    Creator:
    Dantanarayana, Anura Pathmasiri
    Abstract:
    Avermectins are a group of potent anthelmintic agents produced by Streptomyces avermitilis. They are active at extremely low dosages and are now in commercial use. In this study, the synthesis of two segments of avermectin B[subscript 1a] are described. The synthesis of the hexahydrobenzofuran subunit (segment A) began with the...
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    Dissertation
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    phosphonium salt. An attempted Wittig reaction of the ylid derived from 152 with 120 failed to give the

  • The Primary Disease Gradient of Wheat Stripe Rust (Puccinia striiformis f. sp. tritici) Across Spatial Scales

    Creator:
    Farber, Daniel
    Abstract:
    Wheat stripe rust (WSR), also called yellow rust of wheat (Tricitum spp.), causal agent Puccinia striiformis f.sp. tritici (Pst), is a foliar disease of major economic importance on wheat, especially grown in temperate locations. WSR causes major losses of wheat yield, estimated at nearly $ 1 billion per year, and...
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    Dissertation
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    compartment sizes of 1.52 m and 0.025 m, and comparing epidemics stemming from initial foci of 152 m with

  • Inhalable Lipid Nanoparticles for Messenger RNA Therapeutics

    Creator:
    Kim, Jeonghwan
    Abstract:
    Messenger RNA (mRNA) therapy has massive potential to treat various genetic disorders by providing effective proteins to the diseased cells and tissues. Its therapeutic applications include protein replacement, genome editing, and immunotherapy. For successful mRNA treatment, mRNA must be delivered to the cytosol of target cells. One of the leading...
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    Dissertation
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    . ............................................................................................. 152 Supplementary Figure A.11. mRNA derived hsACE2 protein expression and characterization of LNPs

  • The effect of parent and adolescent self concept upon adolescent's perceived communication with parents

    Creator:
    Flora, Rosalind Reed
    Abstract:
    Purpose The major purpose of this study was to investigate the effects of self concept upon parent-adolescent communication patterns. Parental self concepts and the self concepts of their adolescent along with the adolescent's perceived quality of communication with their parents were examined to determine if (1) the parents' self concepts...
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    Dissertation
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    health classes at Oregon State University, Corvallis, Oregon. A total of 152 adolescents and their

  • Fluidic and thermal modeling for the high production rate synthesis of high quality nanoparticles

    Creator:
    Peterson, Daniel Alan
    Abstract:
    Advances of colloidal nanomaterials for societal benefit have been hampered by the high cost and low quality of nanoparticles (NPs). The production of high quality nanoparticles within colloidal suspension has two related concerns; (1) current high production rates methods of synthesizing nanoparticles result in a larger range of particle size,...
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    Dissertation
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    relatively large size (460 µm by 152 mm channel) produces high production rates of nanoparticles while