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  • Bacterioplankton in the Oregon upwelling system: distribution, cell-specific leucine incorporation, and diversity

    Creator:
    Longnecker, Krista
    Abstract:
    Marine bacterioplankton play an important role in global elemental cycles because they return carbon dioxide and nutrients to the biosphere as they reduce organic matter. Furthermore, marine bacterioplankton are not uniformly active, and subpopulations of the in situ community may be more or less active at any given time. Defining...
    Resource Type:
    Dissertation
    Full Text:
    approved: Barry F. Sherr Marine bacterioplankton play an important role in global elemental cycles

  • Evaluating Preventative Vision Care in Oregon Children

    Creator:
    Liau, Belinda
    Abstract:
    The Oregon Department of Education requires children to receive vision screening before entering elementary school, but does not require follow-up with an eye care professional after a failed screening. Whether such preventative vision care is effective at detecting children with vision problems was investigated through research from the American Optometric...
    Resource Type:
    Honors College Thesis
    Full Text:
    Abstract approved: ________________________________________________________ Barry Lawler The Oregon

  • Investigating the ecological role of cell signaling in free-living marine heterotrophic protists

    Creator:
    Hartz, Aaron J.
    Abstract:
    Phagotrophic protists are major consumers of microbial biomass in aquatic ecosystems. However, biochemical mechanisms underlying prey recognition and phagocytosis by protists are not well understood. We investigated the potential roles of cell signaling mechanisms in chemosensory response to prey, and in capture of prey cells, by a marine ciliate (Uronema...
    Resource Type:
    Masters Thesis
    Full Text:
    
 Heterotrophic
Protists.
 
 Abstract
approved:
 
 
 Barry
F.
Sherr
 
 
 Phagotrophic
protists
are
major

  • Sunbeam: A Fairy Tale

    Creator:
    Cummings, Laura L.
    Abstract:
    The heroine of this fantasy novel is Alina who lives in a medieval-like time and place. The day before her 20th birthday, in an impetuous moment, she breaks a local superstition by standing in a sunbeam. This allows a fairy to kidnap her and take her to the fairy castle...
    Resource Type:
    Honors College Thesis
    Full Text:
    : ____________________________________________ Barry Lawler The heroine of this fantasy novel is Alina who lives in a medieval

  • Meteorological aspects of geothermal energy development : a hypothetical case study

    Creator:
    Freeman, Daniel Lee
    Abstract:
    Meteorological aspects of geothermal energy development are first discussed in general terms. An instructive case study is then presented of a hypothetical 100 MW geothermal electrical generating plant at a site near Vale, Oregon. Long-term climate data from Ontario Airport near Ontario, Oregon, are used to describe meteorological characteristics of...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Daniel L. Freeman for the degree

  • Attachment to Place Among Teenage Students in School Districts With Four-Day School Weeks

    Creator:
    Smith, Madeleine C.
    Abstract:
    Rural communities face acute challenges in providing education. Attachment to place plays a significant role in rural communities but little research exists on how it influences policy. One policy response to financial, physical, and cultural factors in rural Oregon is the four-day school week (FDSW). Through health survey responses of...
    Resource Type:
    Honors College Thesis
    Full Text:
    Schroeder, Committee Member, representing Economics Julianne Freeman, Committee Member, representing

  • The effect of protistan bacterivory on bacterioplankton community structure

    Creator:
    Suzuki, Marcelino
    Resource Type:
    Dissertation
    Full Text:
    Protistan Bacterivory on Bacterioplankton Community Structure. Abstract approved: Barry F. Sherr A

  • The automated inference of tree system

    Creator:
    Levine, Barry Arthur
    Abstract:
    Tree systems are used in syntactic pattern recognition for describing two-dimensional patterns. We extend results on tree automata with the introduction of the subtree-invariant equivalence relation R. R relates two trees when the appearance of one implies the appearance of the other in similar trees. A new state minimizing algorithm...
    Resource Type:
    Dissertation
    Full Text:
    THE THESIS OF Barry Arthur Levine for the degree of Doctor of Philosophy in Computer Science

  • Elemental abundances in selected Oregon basalts

    Creator:
    Nicholson, Barry Howard
    Abstract:
    Ninety basalt samples from eight locations in central Oregon and one location in the Willamette Valley were analyzed for Si and Al. Fourteen basaltic rock specimens (> 1 kg each) from four buttes in the Willamette Valley were sampled and analyzed for Si, Al, Fe, Na, K, Mn, Cr, Co,...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF BARRY HOWARD NICHOLSON for the

  • Trichoderma spp. : distribution in stumps infested with Phellinus weirii and growth and antagonism in vitro

    Creator:
    Goldfarb, Barry
    Abstract:
    To determine which isolates will most rapidly replace Phellinus weirii in stumps and roots, Trichoderma spp. were isolated from P. weirii-infested stumps and roots, identified, and examined for growth rates and lethal effects on P. weirii in vitro. Phellinus weirii-infested Douglas-fir stumps and stump roots were sampled for microorganisms by...
    Resource Type:
    Masters Thesis
    Full Text:
    Phellinus weirii and Growth and Antagonism in Vitro AN ABSTRACT OF THE THESIS OF Barry Goldfarb for the