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  • π-line reconstruction formulas in computed tomography

    Creator:
    Hass, Ryan Andrew
    Abstract:
    X-ray computed tomography is a noninvasive imaging modality capable of reconstructing exact density values of 3D objects. Computed tomography machines are deployed across the world to provide doctors with an image that reveals more detail than a standard x-ray image. We investigate algorithms based on exact computed tomography reconstruction formulas...
    Resource Type:
    Dissertation
    Full Text:
    Formulas in Computed Tomography by Ryan Andrew Hass A THESIS submitted to Oregon State University in

  • Zooplankton of the Galapagos Islands

    Creator:
    Figueroa, Diego
    Abstract:
    The marine climate of the Galapagos is spatially and seasonally heterogeneous. A taxonomically comprehensive study of Galapagos zooplankton has never been done. This study is an initial effort to establish the distribution and community structure of zooplankton in the Archipelago. I collected zooplankton samples by vertical tows over the Galapagos...
    Resource Type:
    Dissertation
    Full Text:
    A THESIS submitted to Oregon State University in partial fulfillment of the

  • Zooplankton and hydrography of Alsea Bay, Oregon, September 1966 to September 1968

    Creator:
    Matson, Adrian Luther
    Resource Type:
    Dissertation
    Full Text:
    1968 by Adrian Luther Matson A THESIS submitted to Oregon State University in partial fulfillment

  • Zoogeography of pelagic shrimps (Natantia: Penaeidea and Caridea) in the North Pacific Ocean

    Creator:
    Wasmer, Robert Allen
    Abstract:
    A study was done on the zoogeography of species of oceanic shrimp in the North Pacific from 22°N to 56°N and from 124°W to 145°E, using samples of shrimp collected from 1954 to 1969. These collections were made during the following cruises: John R. Manning Cruise 22, and the Hugh...
    Resource Type:
    Dissertation
    Full Text:
    to Oregon State University in partial fulfillment of the requirements for the degree of Doctor of

  • Zimbabwean counselors' knowledge of and attitudes toward HIV/AIDS

    Creator:
    Richards, Kimberly A.
    Abstract:
    Acquired Immune Deficiency Syndrome (AIDS) has become the world's foremost health threat and is the number one killer in Zimbabwe. Acquired Immune Deficiency Syndrome impacts not only the individual who has AIDS, but on nuclear and extended families, and all aspects of society in Zimbabwe. Since studies have indicated that...
    Resource Type:
    Dissertation
    Full Text:
    Submitted to Oregon State University in partial fulfilment of the requirements for the degree of Doctor

  • Zeros of Replicable Functions

    Creator:
    Toomey, Benjamin J.
    Abstract:
    Following the work of Asai, Kaneko, and Ninomiya for Faber polynomials associated to the modular group, and Bannai, Kojima, and Miezaki's partial proof for the case of the Fricke group of level 2, we show that the zeros of certain modular functions for some low-level genus zero groups associated to...
    Resource Type:
    Dissertation
    Full Text:
    Oregon State University in partial fulfillment of the requirements for the degree of Doctor of

  • Zeros of Certain Combinations of Products of Eisenstein Series

    Creator:
    Klangwang, Jetjaroen
    Abstract:
    In this dissertation, we begin by presenting the result of F. K. C. Rankin and Swinnerton-Dyer on the location of the zeros of the Eisenstein series for the full modular group in the standard fundamental domain. Their simple but beautiful argument shows that all zeros are located on the lower...
    Resource Type:
    Dissertation
    Full Text:
    Eisenstein Series by Jetjaroen Klangwang A DISSERTATION submitted to Oregon State University in partial

  • Zero kinetic energy photoelectron spectroscopy of polycyclic aromatic hydrocarbons

    Creator:
    Zhang, Jie
    Abstract:
    In this dissertation, I present electronic spectra of a few polycyclic aromatic hydrocarbons (PAHs): tetracene, pentacene, pyrene, benzo[g,h,i]perylene and benzo[a]pyrene using resonantly enhanced multiphoton ionization (REMPI) and zero kinetic energy (ZEKE) photoelectron spectroscopy. The work of tetracene and pentacene also combine a laser desorption source with a ZEKE spectrometer, demonstrating...
    Resource Type:
    Dissertation
    Full Text:
    submitted to Oregon State University in partial fulfillment of the requirements for the

  • Zero Kinetic Energy Photoelectron Spectroscopy of Polycyclic Aromatic Hydrocarbons

    Creator:
    Harthcock, Colin
    Abstract:
    In this dissertation, I describe spectroscopic studies of jet-cooled polycyclic aromatic hydrocarbons (PAH) and one nitrogen substituted PAH (PANH) using pulsed field zero kinetic energy (ZEKE) photoelectron spectroscopy and resonantly enhanced multiphoton ionization (REMPI) spectroscopy. Recently, there has been a demand for far-infrared (FIR) spectral information of astrophysically relevant molecules...
    Resource Type:
    Dissertation
    Full Text:
    Wei for the chance to be here at Oregon State University so that I can pursue my dream under her

  • Zeatin O-xylosyltransferase in Phaseolus vulgaris : immunological and molecular analyses

    Creator:
    Martin, Ruth C.
    Abstract:
    Cytokinins are a group of plant hormones mediating cell division and differentiation. Zeatin is a naturally occurring and highly active cytokinin that is rapidly metabolized in Phaseolus seeds. The metabolites and enzymes mediating the conversion have been studied extensively. Zeatin metabolic enzymes may be utilized in studying the regulation of...
    Resource Type:
    Dissertation
    Full Text:
    submitted to Oregon State University in partial fulfillment of the requirements for the degree of