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Filtering by: Creator Gut, Larry J. Remove constraint Creator: Gut, Larry J. Degree Level Doctoral Remove constraint Degree Level: Doctoral Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • Arthropod community organization and development in pear

    Creator:
    Gut, Larry J.
    Abstract:
    Arthropod communities in pear are conceptualized as hierarchically organized systems in which several levels of organization or subsystems can be recognized between the species population level and the community as a whole. An individual tree is taken to be the community habitat with arthropod subcommunities developing on leaf, fruit and...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF Larry J. Gut for the degree of Doctor of Philosophy in Entomology

  • Harnessing Heterogeneity in Human Gut Microbiome Data

    Creator:
    Tataru, Christine
    Abstract:
    The focus of this thesis is to design, characterize, and apply novel computational methods and molecular systems to interrogate heterogeneous human gut microbiome-related phenomena. In Chapter 2, I design, implement, and characterize a method for embedding co-occurrence patterns derived from massive 16s amplicon datasets. I use this method to 1....
    Resource Type:
    Dissertation
    Full Text:
    : Harnessing Heterogeneity in Human Gut Microbiome Data Abstract approved: Maude M. David The focus of this

  • Comparative Metagenomic Investigations Link the Functional Capacity of the Gut Microbiome to Vertebrate Physiology

    Creator:
    Armour, Courtney R.
    Abstract:
    Microscopic organisms inhabit virtually every niche on this planet, where they perform functions vital to all life on earth. Accordingly, humans host a complex community of microorganisms (i.e. the gut microbiome) that inhabit the gastrointestinal tract and modulate host physiology. Insight into the specific mechanisms through which gut microbes influence...
    Resource Type:
    Dissertation
    Full Text:
    Gut Microbiome to Vertebrate Physiology Abstract approved

  • Toward making the invisible visible : studying science teaching self-efficacy beliefs

    Creator:
    Perkins, Catherine J.
    Abstract:
    This dissertation consists of two articles to be submitted for publication. The first, a literature review, makes visible common influences on science teaching self-efficacy beliefs and also points to potentially invisible validation concerns regarding the instrument used. The second investigates the participants' invisible science teaching self-efficacy beliefs and, through the...
    Resource Type:
    Dissertation
    Full Text:
    Catherine J. Perkins Larry G. Enochs Emily van Zee Journal of Science Teacher Education

  • Simulation and field validation of heat and water flow during soil freezing and thawing

    Creator:
    Pikul, Joseph Lawrence
    Abstract:
    Freeze/thaw cycles are numerous in agricultural soils of the Pacific Northwest. Potential loss of soil by erosion is high whenever a soil thaws from the surface creating a saturated soil overlying an impermeable frozen layer. Field studies were conducted to investigate the effect of surface residue on soil freezing. Residue...
    Resource Type:
    Dissertation
    Full Text:
    Larry Boersma Freeze/thaw cycles are numerous in agricultural soils of the Pacific Northwest

  • Ecophylogenetic Characterization of the Gut Microbiome of At-risk Companion and Food Animals

    Creator:
    Kirchoff, Nicole S.
    Abstract:
    Agricultural and companion animals are integral to our way of life as they provide us with nourishment, financial resources, transportation, and companionship. However, pets, managed animals in the agricultural industry, as well as wild populations of food animals are all subject to health and mortality risks. The gut microbiome is...
    Resource Type:
    Dissertation
    Full Text:
    : Ecophylogenetic Characterization of the Gut Microbiome of At-risk Companion and Food Animals Abstract

  • Optimization of staged rankine energy conversion cycles for high efficiency

    Creator:
    Simmons, Larry Dean
    Abstract:
    Because of the fuel crisis and problems associated with thermal pollution there is new impetus and urgency for developing more efficient energy conversion systems for power generation. A preliminary analysis was undertaken to determine the potential of staged Rankine cycle systems for substantially higher efficiency. It was necessary to optimize...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF LARRY DEAN SIMMONS for the

  • Molecular intensity parameters in the solid state

    Creator:
    Fredrickson, Larry R.
    Resource Type:
    Dissertation
    Full Text:
    Redfern for Larry R. Fredrickson ACKNOWLEDGMENTS I wish to express my sincerest thanks to Dr. J. C

  • Vibrational and reorientational lifetimes in liquids determined by Raman spectroscopy

    Creator:
    Morgan, Larry G.
    Abstract:
    Studies of anisotropic and isotropic Raman line shape yield information about the rotational motion (rotational correlation function) and non-reorientational (vibrational) lifetimes. The rotational motion of carbon disulfide has been studied previously by the techniques of Raman spectroscopy (6, 43), Rayleigh scattering (43, 46) and direct measurement (47). This work was...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT FOR THE THESIS OF LARRY G. MORGAN for the degree

  • A critical analysis of wildlife conservation in Oregon

    Creator:
    Rymon, Larry Maring
    Abstract:
    This analysis is the study of Oregon's wildlife resources from the period prior to white settlement up to the present time, including critical projections, based on present trends and expected conditions for both human and wildlife populations in the state up to the year 2010. Prior to white settlement Oregon...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF LARRY MARING RYMON for the DOCTOR OF PHILOSOPHY (Name) in GENERAL