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  • Above and Below : Oregon Coastal Phytoplankton Bloom Dynamics from Sea and Space

    Creator:
    McKibben, S. Morgaine
    Abstract:
    Phytoplankton are a sentinel class of organisms in the marine environment. Through their photosynthetic activity in sunlit waters worldwide, phytoplankton shape the health and productivity of marine ecosystems and impact the global climate. In this work a range of ocean sensing technologies (via ships, surf zone sampling, moorings, gliders, and...
    Resource Type:
    Dissertation

  • Dynamic seascapes : a quantitative framework for scaling pelagic ecology and biogeochemistry

    Creator:
    Kavanaugh, Maria T.
    Abstract:
    Understanding and modeling microbial responses and feedbacks to climate change is hampered by a lack of a framework in the pelagic environment by which to link local mechanism to large scale patterns. Where terrestrial ecology draws from landscape theory and practice to address issues of scale, the pelagic seascape concept...
    Resource Type:
    Dissertation
    Full Text:
    , including Curt Davis, Burke Hales, Yvette Spitz, Evelyn Sherr, Lisa Madsen, and Kerry McPhail. You all

  • Model Predictive Control for Underwater Robots in Ocean Waves

    Creator:
    Fernández, Daniel C.
    Abstract:
    Underwater robots beneath ocean waves can benefit from feedforward control to reduce position error. This thesis proposes a method using Model Predictive Control (MPC) to predict and counteract future disturbances from an ocean wave field. The MPC state estimator employs a Linear Wave Theory (LWT) solver to approximate the component...
    Resource Type:
    Masters Thesis
    Full Text:
    vehicle was used along with a Didson sonar to reconstruct the S.S. Curtiss hull draft. . . . . . . . 17

  • Recombinant vaccines against infectious hematopoietic necrosis virus : bacterial systems for vaccine production and delivery

    Creator:
    Simon, Benjamin E.
    Abstract:
    Several systems were examined for the production and delivery of recombinant vaccines for fish. C. crescentus was employed to produce a fragment of the IHNV glycoprotein. When administered by injection to 0.5 gram rainbow trout (Oncorhynchus mykiss), one of the fusion proteins (184 amino acids of the IHNV glycoprotein fused...
    Resource Type:
    Dissertation
    Full Text:
    aquaculture has also been promising (Reviewed by Heppell and Davis, 2000). The first successful DNA vaccine

  • Role of Extreme Events on Sedimentation in Loon Lake, Oregon Coast Range, USA

    Creator:
    Richardson, Kristin Noel Duckworth
    Abstract:
    Sediment cores were retrieved from a landslide-dammed lake, recording events back to the 5th century AD in a forested, mountainous catchment. These cores provide an opportunity to compare the impacts of known recent perturbations, including floods and timber harvesting with those of the early period of the core, flood, fire,...
    Resource Type:
    Masters Thesis
    Full Text:
    bathymetry and core locations of key cores (map adapted from Rinella, 1979 and Curtiss et al., 1984). c

  • Characterization of microaggregate formation by Mycobacterium avium subspecies hominissuis

    Creator:
    Babrak, Lmar
    Abstract:
    Mycobacterium avium subsp hominissuis (MAH) is an opportunistic environmental pathogen that causes respiratory and gastrointestinal illness in immunocompromised persons such as those with chronic respiratory diseases or AIDs, respectively. In recent years, there has been a significant increase in the incidence of nontuberculous mycobacterial (NTM) lung infections, including in cystic...
    Resource Type:
    Dissertation
    Full Text:
    (Frick, Morgelin et al. 2000). In a recent paper Davis et al identified three bacterial

  • In vivo detoxification of acetic acid in Saccharomyces cerevisiae

    Creator:
    Ding, Jun
    Abstract:
    The studies described in this thesis were motivated by ongoing efforts to develop lignocellulosic biomass as an efficient and practical source of renewable energy. Enormous problems complicate these efforts to reduce reliance on greenhouse gas-generating fossil fuels. Simply obtaining the fermentable sugars available in the cellulose and hemicellulose components of...
    Resource Type:
    Dissertation

  • Mechanisms for the interaction of environmental mycobacteria with host cells

    Creator:
    Harriff, Melanie J.
    Abstract:
    Environmental mycobacteria are important opportunistic pathogens for many hosts, including humans, cattle, and fish. Two well-studied species are Mycobacterium avium subsp. avium, a significant cause of disseminated bacterial disease in patients with AIDS, and Mycobacterium avium subsp. paratuberculosis, the cause of Johne’s disease in cattle. Many other species that are...
    Resource Type:
    Dissertation
    Full Text:
    ; Brenot et al., 2004), and M. marinum (Davis et al., 2000; Prouty et al., 2003). Zebrafish have the

  • Development and use of molecular tools in Fragaria

    Creator:
    Njuguna, Wambui
    Abstract:
    This dissertation describes the application and development of molecular tools that have great potential for use in studying variation in strawberry germplasm. The first study evaluated 91 microsatellite (simple sequence repeat, SSR) markers for transferability in 22 Fragaria species and their utility in fingerprinting octoploid strawberries. Out of the transferable...
    Resource Type:
    Dissertation
    Full Text:
    all chapters. Drs. Kim Hummer and Thomas Davis collected plant material used for chapter three

  • 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