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Filtering by: Creator Spittlehouse, David L. Remove constraint Creator: Spittlehouse, David L. Non-Academic Affiliation Oregon State University. Graduate School Remove constraint Non-Academic Affiliation: Oregon State University. Graduate School

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  • Radiotracer methodology in biological science

    Creator:
    Willis, David L.
    Abstract:
    The use of radioactive isotopes as tracers in biological systems has become widespread since the close of World War II. Proper use of radiotracers requires a fundamental understanding of the physical nature of radioactivity, the characteristics of ionizing radiation, and the various methods available for measuring radioactivity. More importantly, the...
    Resource Type:
    Dissertation
    Full Text:
    ABSTRACT OF THE THESIS OF David Lee Willis for the Doctor of Philosophy in General Science (Name

  • A review of the deep water Liparidae from the coast of Oregon and adjacent waters

    Creator:
    Stein, David L.
    Abstract:
    Descriptions and distributions are given of 28 species of Liparidae occurring or possibly occurring below 200 m between San Francisco and northern Vancouver Island, with keys for their identifications. Nine genera are included: Careproctus, Elassodiscus, Lipariscus, Nectoliparis, Rhinoliparis, Acantholiparis, Paraliparis, and two new genera are described, Odontoliparis and Osteodiscus. Eight...
    Resource Type:
    Masters Thesis
    Full Text:
    Oregon and adjacent waters AN ABSTRACT FOR THE THESIS OF David L. Stein for the degree of Master of

  • Environmental and genetic factors affecting seed set in Dactylis glomerata L.

    Creator:
    West, David L.
    Abstract:
    Field, growth chamber, and greenhouse studies were carried out to evaluate factors that cause low seed set in Dactylis Glomerata L. The variety, 'Latar', and the parental clones of the variety, 'Pennlate', were studied in detail. Floral anatomy investigations indicated that 98 percent of Dactylis flowers opened at Corvallis in...
    Resource Type:
    Dissertation
    Full Text:
    Dactylis glomerata L. AN ABSTRACT OF THE THESIS OF DAVID LEE WEST for the DOCTOR Or 'DHILOSOPHY (Name

  • Transient heat and mass transfer in soils in the vicinity of heated porous pipes

    Creator:
    Slegel, David L.
    Abstract:
    Differential equations governing the combined heat and mass transfer in soils are developed. Transient heat, liquid and vapor transfer with phase change is considered. The liquid transfer is treated as a function of the hydraulic conductivity and the gradient of suction potential. The suction potential is considered a function of...
    Resource Type:
    Dissertation
    Full Text:
    of heated porous pipes AN ABSTRACT OF THE THESIS OF DAVID LOUIS SLEGEL for the DOCTOR OF

  • The solid state photochemistry and photophysics of a triphenylmethyl dye cyanide

    Creator:
    Vernier, David L.
    Abstract:
    Triphenylmethyl dye cyanides have been known to be sensitive to ultraviolet radiation since early in this century. Under appropriate conditions, exposure to uv leads to heteropolar fission of the C-CN bond (photoionization) and intense coloration due to dye formation. Thin homogeneous films of hexahydroxyethyl pararosaniline cyanide in a nylon matrix...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF David Lloyd Vernier for the

  • Effect of elevation, aspect, canopy, and season on soil temperature measurements for soil classification

    Creator:
    Green, David L.
    Abstract:
    The effects of aspect, canopy, elevation, and season both singly and in combination on soil temperatures at 50 cm depths were evaluated. The objectives of the study were (i) to develop a standard procedure for obtaining soil temperature data adequate to classify soils at the family and great group levels,...
    Resource Type:
    Masters Thesis
    Full Text:
    temperature measurements for soil classification AN ABSTRACT OF THE THESIS OF David L. Green for the degree

  • Low frequency variations in the sea level and currents over the Oregon continental shelf

    Creator:
    Cutchin, David L.
    Abstract:
    Sea level and current observations made over the Oregon continental shelf exhibit wavelike characteristics in a frequency band from approximately 0.15 to 0.45 cpd. In a narrow band around 0.22 cpd the current-sea level relationship is consistent with the predicted values for the first mode of Robinson's continental shelf waves....
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE THESIS OF DAVID LOUIS CUTCHIN for the DOCTOR

  • Annual bluegrass (Poa annua L.) control with ethofumesate during turfgrass establishment

    Creator:
    Wieneche, David L.
    Abstract:
    Temperate climates are particularly conducive to growth of annual bluegrass which readily invades and dominates most cool-season turfgrasses. Ethofumesate (2-ethoxy-2,3-dihydro-3,3-dimethyl-5-benzofuranyl methanesulfonate) is one herbicide available which will selectively control annual bluegrass. The primary objectives of this research were to determine optimum application rates and timing of ethofumesate for control of...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF David L. Wienecke for the degree

  • Population and behavioral responses of small mammals to silviculture and downed wood treatments in the Oregon Coast Range

    Creator:
    Waldien, David L.
    Abstract:
    Forest managers are challenged to provide timber revenues and other resources for society while protecting and enhancing components of biodiversity that are often associated with older forests or older forest structure, such as dead wood. We examined small mammal response to timber harvest in stands 8-10 years following group-selection, two-story,...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: AN ABSTRACT OF THE DISSERTATION OF David L

  • Advanced studies on cyclic amino acids in neurological signaling and peptide antibiotics

    Creator:
    Blanchard, David, L.
    Abstract:
    L-pipecolic acid (L-PA) is the higher homolog of proline. It occurs naturally in many organisms, including primates, as an intermediate in lysine degradation. The pathway by which lysine is converted into L-pipecolic acid employs the enzyme Lpipecolate oxidase (L-PO), and appears to be tissue specific to the central nervous system...
    Resource Type:
    Dissertation
    Full Text:
    OF David L. Blanchard for the degree of Doctor of Philosophy in Pharmacy presented on March