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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:
    includes the helical inversion formulas of Katsevich and Pan et al. Our work provides numerical analysis

  • Zooarchaeologjcal and Taphonomic Investigations of Site 35JA42, Upper Applegate River, Southwestern Oregon

    Creator:
    Schmitt, Dave N.
    Abstract:
    Site 35JA42 represents the first protohistoric village complex excavated in Southwest Oregon. Analyses of animal bones recovered from the site offer the first significant insights into human subsistence behaviors in this region. Although the faunal assemblage is extremely fragmented, detailed zooarchaeological analysis indicates that deer were the primary meat resource...
    Resource Type:
    Masters Thesis
    Full Text:
    the degree of Master of Arts in Interdisciplinary Studies in Anthropology. Geography and

  • Zinc-65 uptake by a bacterium isolated from Alder Slough, Columbia River Estuary

    Creator:
    Tonjes, Stephen Dodd
    Abstract:
    Bacteria were isolated from water at Alder Slough, Oregon. Of 15 isolates grown successfully in the medium employed, 100% showed measurable uptake of Zn-65. A growth curve was established for one isolate, a gram-negative rod designated AS-1. Increasing Zn-65 uptake was found generally to correspond with increasing growth of AS-1....
    Resource Type:
    Masters Thesis
    Full Text:
    biological systems and the properties of water. Journal of Bacteriology 80:21-29. / .. .12. Sereny, B. 1967

  • 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:
    ' attitudes towards and knowledge of HIV/AIDS. Additionally, the study explored the emotions the counselors

  • 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:
    multiphoton ionization (REMPI) and zero kinetic energy (ZEKE) photoelectron spectroscopy. The work of

  • 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:
    the launching of the Herschel Space Observatory and the Stratospheric Observatory for Infrared

  • Young Adults’ Personal Goal Appraisals over the Great Recession Years : A Case Study of Germany

    Creator:
    Recksiedler, Claudia
    Abstract:
    In 2008, the “Great Recession” gained its momentum and quickly grew into a global crisis that led to massive gross domestic product declines and job losses in countries around the world. Relative to prior economic downturns, young adults were greatly affected by the Great Recession. This likely placed a premium...
    Resource Type:
    Dissertation
    Full Text:
    Recksiedler for the degree of Doctor of Philosophy in Human Development and Family Studies presented on

  • You better work : negotiating race, sexuality, gender, and neoliberalism in plus-size fashion blogs

    Creator:
    Conway, Clare
    Abstract:
    Over the past decade, the explosion of social media has secured the Internet as a venue for political discussions of all sorts; as well as a realm of consumption and commodification. One population of women that has utilized social media in this way is the plus-sized fashion ("fatshion") community on...
    Resource Type:
    Masters Thesis
    Full Text:
    ” to pop culture research on portrayals of fat characters. In 2012, the first academic journal

  • Yosemite region nitrogen deposition and patterns in the composition of lichen communities

    Creator:
    Hutten, Martin
    Abstract:
    This dissertation describes patterns in epiphytic macrolichen community composition along a nitrogen deposition gradient in the Yosemite region of the Sierra Nevada in California. This region is part of the largest federal air quality Class 1 designated air-shed in the western United States, covering the entire crest of the Sierra...
    Resource Type:
    Dissertation
    Full Text:
    . Hutten for the degree of Doctor of Philosophy in Botany and Plant Pathology presented on October 20

  • Yield loss assessment in nonprotected winter wheat varieties (Triticum aestivum, L. em Thell)

    Creator:
    Camacho Casas, Miguel Alfonso
    Abstract:
    The effects of some soil- and foliar-borne biotic factors on grain yield and the components of yield were evaluated using five winter wheat varieties sown at two dates. Within each planting date, varieties were grown under four different combinations of two soil treatments (fumigation and nonfumigation) and two foliar treatments...
    Resource Type:
    Masters Thesis
    Full Text:
    , the Journal of Phytopathology has included a section on disease detection and losses. Evaluation of