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Filtering by: Creator Butterworth, Earl McKenzie Remove constraint Creator: Butterworth, Earl McKenzie Degree Level Master's Remove constraint Degree Level: Master's

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  • Some hormonal factors associated with the regulation of ewe reproductive patterns

    Creator:
    Reeves, Jerry John
    Abstract:
    Twenty-eight Columbia ewes were made available for study during their breeding and anestrous seasons. After the regularity of the estrous cycles had been established, eight of the ewes were sacrificed in pairs at four different stages of the estrous cycle. Eight additional ewes were sacrificed during anestrus. Pituitary glands, ovaries,...
    Resource Type:
    Masters Thesis
    Full Text:
    : Redacted for Privacy Earl F. Ellington Twenty -eight Columbia ewes were made available for study

  • Regulation of ovine pituitary function with estrogen alone and in combination with progresterone

    Creator:
    Osland, Robert Birger
    Abstract:
    Five experiments were conducted to study the activity of the pituitary gland in sheep as influenced by estrogen administered alone or in combination with progesterone. Particular emphasis was given to the study of gonadotropic activity. Mature wethers (experiments I, III, IV and V) or ewes (experiment II) were utilized as...
    Resource Type:
    Masters Thesis
    Full Text:
    assistance of Dr. Earl F. Ellington, Assistant Professor of Animal Science, for providing advice, guidance

  • Hip loading during the squat exercise

    Creator:
    Haberly, Gabriel J.
    Abstract:
    Hip fractures have high mortality and morbidity rates after incidence, with osteoporosis being a major risk factor due to the loss of bone mineral density (BMD). Lower-body resistance exercises, such as squats, can provide sufficient loading on the hip to induce osteogenic effects. However, this loading may depend on how...
    Resource Type:
    Masters Thesis
    Full Text:
    Norcross, Kathy Gunter, and Erica McKenzie. A special thanks to my major professor, Mike Pavol, who

  • The Willamette River fishes as biological indicators of pollution

    Creator:
    Noble, Richard Earl
    Abstract:
    An investigation of the fishes of the Willamette River and three of its larger tributaries was made during July, August, September, and November of 1951, to ascertain the possibility of using them as bio-indices of pollution. Thirteen stations were established on the Willamette River and tributaries. These stations were selected...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF RICHARD EARL NOBLE for the

  • Heterosis and inbreeding in the progeney of genetically diverse parental clones of Festuca arundinacea Schreb

    Creator:
    Johnson, Blaine Earl
    Abstract:
    The response of maturity, vigor, plant spread, plant height, three forage harvest yields, and total forage yield to heterosis and inbreeding was studied in tall fescue. Parent clones selected for diverse anthesis date, origin, and morphology were separated into two groups based on anthesis date, those having early maturity and...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF BLAINE EARL JOHNSON for the

  • An investigation of particle interference in the concrete sands of Oregon

    Creator:
    Lucas, Frank Earl
    Resource Type:
    Masters Thesis
    Full Text:
    INVESTIGATION OP PARTICLI INTRRENCE IN T}LL CONCRETE SANDS OF OREGON by RA1'K EARL LUCAS A TItESIS

  • Architecture design of multiplexed incremental analog-to-digital converters

    Creator:
    Zhang, Zhiqing
    Abstract:
    Analog-to-Digital Data Converters (ADCs) used in instrumentation and measurements often require high absolute accuracy, including excellent linearity and negligible dc offset. Incremental data converters (IDCs) provide a solution for such measurement applications. Since IDCs are essentially delta-sigma converters with reset operation before each conversion, they retain most of the advantages...
    Resource Type:
    Masters Thesis
    Full Text:
    work. I also would like to thank my colleagues at Broadcom Corp, Jan McKenzie, Jay Ackerman, Eric

  • Genesis of some soils in the central western Cascades of Oregon

    Creator:
    Brown, R. B.
    Abstract:
    Soils representative of several landscape units in the H. J. Andrews Experimental Forest, Western Cascade Range, were sampled, analyzed, and tentatively classified. Genetic inferences were drawn relating soils to landscape position and other factors of soil formation. Descriptive information and nutrient capital data were provided to support ecosystem modelling efforts...
    Resource Type:
    Masters Thesis
    Full Text:
    Andrews Forest. Prior to 35, 500 radiocarbon yrs b. p. ice from a glacier occupying the main McKenzie

  • The effects of commercial rhizobium inoculants on the establishment of Trifolium subterraneum in southwest Oregon soils

    Creator:
    Jenkins, Michael B.
    Abstract:
    Commercial inoculant products for subclover that are marketed in the Pacific Northwest were evaluated in field trials (supplemented by appropriate laboratory analysis) at four sites in southwest Oregon. The materials tested were Nitragin (Milwaukee, WI) and Northrup-King (Minneapolis, MN) peat-based inocula, and Celpril (Manteca, CA) inoculated, lime-pelleted subclover seed. Duplicate...
    Resource Type:
    Masters Thesis
    Full Text:
    inoculants. p. 328-333. In: Hallsworth, E. G. (ed.). Nutriton of Legumes. Butterworth and Co. London. 21

  • Analysis of moving loads using force-based finite elements

    Creator:
    Kidarsa, Adrian
    Abstract:
    An analysis method for moving loads computes the internal demand history in a structural member at integration points of force-based finite elements as opposed to the end forces of a refined displacement-based finite element mesh. The force-based formulation satisfies strong equilibrium of internal section forces with the element end forces...
    Resource Type:
    Masters Thesis
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 38 2.9 Model of the McKenzie River Bridge with seven section locations identified along each span