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Filtering by: Creator Spackman, David A. Remove constraint Creator: Spackman, David A. Decade 2010-2019 Remove constraint Decade: 2010-2019

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  • Design and analysis of radiation shielding eyewear

    Creator:
    Spackman, David A.
    Abstract:
    The recent reductions to the international dose limit recommendations for the lens of the eye have renewed interest in radiation protection strategies in interventional fluoroscopy, where eye-lens radiation exposure occurs frequently. Radiationshielding eyewear can significantly reduce lens dose in these scenarios, but accurate protection factors are elusive because they depend...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF David A. Spackman for the degree of Master of Science in Radiation

  • Natural Products Discovery from Unique Microbial Habitats

    Creator:
    Gallegos, David A.
    Abstract:
    Marine natural products possess an abundance of diverse chemical scaffolds with unique biological activities. By targeting unusual or unique microbial environments within varying marine ecologies we can continue to discover novel chemistry with potentially new molecular targets. The research presented here is focused on exploring unusual chemical ecologies and the...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF David A. Gallegos II for the degree of Doctor of Philosophy in

  • Examination of Immobilized TiO₂ Nanoparticle Photocatalytic Treatment of Stormwater by LilyPads

    Creator:
    Lopez, David A.
    Abstract:
    Stormwater runoff is a significant cause for impairment of many water bodies, a problem that will inevitably escalate due to increasing land-cover change associated with urbanization. The effect of stormwater runoff has spurred legislation and the subsequent development and adoption of Best Management Practices (BMPs) to treat stormwater. This work...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF David A. Lopez for

  • The development of aminal radicals for the synthesis of nitrogen-rich natural products

    Creator:
    Schiedler, David A.
    Abstract:
    Organic compounds which contain one or more nitrogen atoms are especially important as they are disproportionately represented among biologically active molecules. As a result, significant effort has been focused on the development of methods for the synthesis of nitrogenous molecules. We identified the aminal as an under-explored functional group. Despite...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF David A

  • Blood-based gene expression as a biodosimetry model for neuroblastoma patients treated with ¹³¹I-mIBG

    Creator:
    Edmondson, David A.
    Abstract:
    Internal dosimetry is challenging and relies on estimates using MIRD or ICRP biokinetic models. To address this, we looked at gene expression analysis in whole blood from radiotherapy patients. Patients with relapsed or refractory neuroblastoma who received ¹³¹I-mIBG at UCSF were used to correlate internal ionizing radiation (IR) dose with...
    Resource Type:
    Masters Thesis
    Full Text:
    David A. Edmondson for the degree of Master of Science in Radiation Health Physics presented on June 26

  • Identification of optimal broodstock for Pacific Northwest oysters

    Creator:
    Stick, David A.
    Abstract:
    The United States Pacific Northwest is well known for its shellfish farming. Historically, commercial harvests were dominated by the native Olympia oyster, Ostrea lurida, but over-exploitation, habitat degradation, and competition and predation by non-native species has drastically depleted their densities and extirpated many local populations. As a result, shellfish aquaculture...
    Resource Type:
    Dissertation
    Full Text:
    ABSTRACT OF THE DISSERTATION OF David A. Stick for the degree of Doctor of Philosophy in Fisheries

  • Drought escape behavior in the giant water bug Abedus herberti

    Creator:
    Boersma, Kate and Lytle, David A.
    Abstract:
    Video of overland dispersal and drought escape behavior in a flightless aquatic insect, the giant water bug Abedus herberti (Hemiptera: Belostomaidae). April 9, 2009 High Creek, Galiuro Mountains, Arizona (AZ) USA.
    Resource Type:
    Dataset

  • Fire and Grazing Influence Site Resistance to Bromus tectorum Through Their Effects on Shrub, Bunchgrass and Biocrust Communities in the Great Basin (USA)

    Creator:
    Condon, Lea A. and Pyke, David A.
    Abstract:
    Shrubs, bunchgrasses and biological soil crusts (biocrusts) are believed to contribute to site resistance to plant invasions in the presence of cattle grazing. Although fire is a concomitant disturbance with grazing, little is known regarding their combined impacts on invasion resistance. We are the first to date to test the...
    Resource Type:
    Article
    Full Text:
    on Shrub, Bunchgrass and Biocrust Communities in the Great Basin (USA) Lea A. Condon1,2* and David

  • Convergent diversity and trait composition in temporary streams and ponds

    Creator:
    Schriever, Tiffany A. and Lytle, David A.
    Abstract:
    Hydrology is the main environmental filter in aquatic ecosystems and may result in shared tolerances and functional traits among species in disparate ecosystems. We analyzed the associations between taxonomic and functional facets of diversity within aquatic ecosystems (ponds vs. streams) across a hydroperiod gradient (1–365 d) to untangle the hydrologic...
    Resource Type:
    Article

  • Associations Between Relocation and Seasonal Depression

    Creator:
    Morozov, Andrey A. and Kerr, David C. R.
    Abstract:
    Seasonal Affective Disorder (SAD) is a mood disorder that is characterized by depressive symptoms that onset and remit at the same times each year. Whereas few people (about 1%) experience problems severe enough to be labeled SAD, many people (estimates range from 30%-90%) may experience mild to moderate changes in...
    Resource Type:
    Poster
    Full Text:
    Andrey A. Morozov; David C. R. Kerr, Ph.D. Introduction Seasonal Affective Disorder (SAD) is a