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Filtering by: Creator Risso, Derek A. Remove constraint Creator: Risso, Derek A. Language English [eng] Remove constraint Language: English [eng]

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  • Floodplain vegetation following over 80 years of intensive land use and de-watering : Lower Owens River, California

    Creator:
    Risso, Derek A.
    Abstract:
    Riparian areas in the arid western United States are critical ecosystems that have been severely degraded by a variety of land and water uses over the last 100 years. In this study, the composition and structure of floodplain vegetation along the Lower Owens River in eastern California was quantitatively described...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Derek A. Risso for the degree of Master of Science in Wildlife

  • Characterization of different forms of lysophospholipase in barley

    Creator:
    Lundgard, Robert
    Abstract:
    During barley germination, α-amylase and other hydrolases are synthesized in the aleurone layer and secreted into the starchy endosperm. As starch is degraded by amylases, lysophospholipids are released from inclusion complexes with the starch and undergo hydrolysis by a lysophospholipase (LPL) activity. Studies with embryo-free half seeds and isolated aleurone...
    Resource Type:
    Dissertation
    Full Text:
    J. Baisted During barley germination, a-amylase and other hydrolases are synthesized in the

  • Lysophospholipase of germinating barley seeds

    Creator:
    Fujikura, Yuzo
    Abstract:
    The amylose component of cereal starch contains lysophospholipid, predominantly lysophosphatidylcholine (LPC) as inclusion complexes. As starch undergoes degradation by amylases during barley germination, lysophospholipase (LPL) an enzyme which degrades lysophospholipids appears in the starchy endosperms and becomes associated with the starch fraction. The enzyme has been reported to have a...
    Resource Type:
    Dissertation
    Full Text:
    approved: Redacted for Privacy (/ Derek J. Baisted The amylose component of cereal starch contains

  • Studies on sterol : UDP glucose glucosyltransferase in germinating pea seedling

    Creator:
    Fang, Ta-Yun
    Abstract:
    Steryl glycoside is synthesized from mevalonate [2- ¹⁴C] in both maturing pea seeds and etiolated pea seedlings. The maturing seed appeared more active than the seedlings for this synthesis. The sugar moiety was identified predominantly as glucose by acid hydrolysis and paper chromatography of the aqueous extract of the hydrolysate....
    Resource Type:
    Dissertation
    Full Text:
    : Derek J. Halsted Steryl glycoside is synthesized from mevalonate [2- 14 C] in both maturing pea seeds

  • Changes in enzyme activities of the isoprenoid pathway in germinating Pisum sativum

    Creator:
    Green, Terrence Robert, 1944-
    Abstract:
    The nature of the isoprenoid pathway and diversity of biologically significant products suggests that the pathway may be highly regulated, particularly under stress conditions, where the availability of high energy intermediates is limited. It was postulated that germinating seeds suffer from a limited supply of available energy and must therefore...
    Resource Type:
    Dissertation
    Full Text:
    for Privacy DU Derek J. Baisted(I2A The nature of the isoprenoid pathway and diversity of

  • Choline-lipid release from normal and transformed cells

    Creator:
    Hong, Seong-Tshool
    Resource Type:
    Masters Thesis
    Full Text:
    to cellular [3H]choline lipid during a chase period is approximately 9 to 14 times greater in 3T3

  • Indirect effects of fishing on predators and their prey

    Creator:
    Stallings, Christopher Derek
    Abstract:
    Predators are fundamentally important for regulating and driving prey population dynamics as well as structuring ecological communities. Over-exploitation of marine resources has caused dramatic depletions of predatory fish species and shifts in marine community composition, with attendant declines in productivity and diversity of marine ecosystems. Despite the important ramifications of...
    Resource Type:
    Dissertation
    Full Text:
    their Prey Abstract approved: ___________________________ Mark A. Hixon Predators

  • A global scale analysis of the spatiotemporal distribution of foliar biomass for 1988

    Creator:
    Pross, Derek D.
    Abstract:
    Many ecological systems follow a seasonal cycle affecting primary production,carbon flux, and vegetative gas emissions. The seasonal variation of ecological systems are both affected by and have effects upon climatic factors. A quantitative estimate of the seasonal variation of vegetation is required to characterize ecological systems and their interaction with...
    Resource Type:
    Masters Thesis
    Full Text:
    Biomass for 1988 by Derek D. Pross A THESIS submitted to Oregon State University in partial

  • Agricultural development and urban unemployment : a simulation analysis of the Nigerian economy

    Creator:
    Byerlee, Derek Ronald
    Abstract:
    The study critically analyzes the implication of various agricultural development policies on urban unemployment and income distribution. More specifically it focuses on the evaluation of agricultural policies at the macro-economic Level in the Nigerian economy. A system science and simulation approach is used to build and test a ten sector...
    Resource Type:
    Dissertation
    Full Text:
    Development and Urban Unemployment: A Simulation Analysis of the Nigerian Economy by Derek Eonald Byerlee

  • Investigation of MoS2 with Ambient Pressure X-ray Photoelectron Spectroscopy

    Creator:
    Dardzinski, Derek P.
    Abstract:
    Molybdenum disulfide (MoS2) has potential applications as a low-cost catalyst for the hydrogen evolution reaction (HER). Defects on MoS2, such as edge sites and sulfur vacancies, are known to be the major active sites for HER. Controlling the formation of these defects allows for the enhancement in reactivity of MoS2...
    Resource Type:
    Honors College Thesis
    Full Text:
    by Derek Dardzinski A THESIS submitted to Oregon State University Honors College in partial