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  • The effects of an emerging pathogen on amphibian host behaviors and interactions

    Creator:
    Han, Barbara A.
    Abstract:
    Contemporary environmental change encompasses massive biodiversity loss and increasing numbers of emerging diseases worldwide. As part of a global biodiversity crisis, amphibians are disappearing at unprecedented rates. Batrachochytrium dendrobatidis is an emerging infectious pathogen prominently associated with many declines. Chapter 1 reviews the past decade of research on this system...
    Resource Type:
    Dissertation
    Full Text:
    DISSERTATION OF Barbara A. Han for the degree of Doctor of Philosophy in Zoology presented on September 26

  • Quest for a Cure: Persistent Residual Incontinence Post-obstetric Fistula Repair in Uganda

    Creator:
    Ruder, Bonnie J.
    Abstract:
    Obstetric fistula is estimated to affect 1–2 million women worldwide, predominantly in low-resource countries in sub-Saharan Africa and southeast Asia. The primary intervention for obstetric fistula is surgery, which is described as a relatively simple surgical procedure with an extremely high psychosocial and economic benefit relative to cost. Research addressing...
    Resource Type:
    Dissertation
    Full Text:
    . Title: Quest for a Cure: Persistent Residual Incontinence Post-obstetric Fistula Repair in Uganda

  • Identification and characterization of vasotocin and mesotocin peptides and receptors

    Creator:
    Searcy, Brian T.
    Abstract:
    The neurohypophysial peptide system is involved in modulating a variety of physiological, neurological, and behavioral responses in vertebrates. The principal forms of these peptides in non-mammalian tetrapods are vasotocin (VT) and mesotocin (MT). The studies described in this thesis used pharmacological, molecular, and biochemical techniques, along with phylogenetic analyses, to...
    Resource Type:
    Dissertation
    Full Text:
    peptide system is involved in modulating a variety of physiological, neurological, and behavioral

  • The Biogeochemistry of nitrogen and phosphorus cycling in native shrub ecosystems in Senegal

    Creator:
    Dossa, Ekw'e Lokossou, 1960-
    Abstract:
    Two native shrub species (Piliostigma reticulatum and Guiera senegalensis) are prominent vegetation components in farmers’ fields in Senegal. However, their role in nutrient cycling and ecosystem function has largely been overlooked. A study including both laboratory and field experiments was conducted to evaluate potential biophysical interactions of the two shrub...
    Resource Type:
    Dissertation
    Full Text:
    nutrient cycling and ecosystem function has largely been overlooked. A study including both laboratory

  • Hydrological consequences of two native shrubs in semi-arid Senegal : patterns, processes, concepts and methods

    Creator:
    Kizito, Fred
    Abstract:
    Water availability is a critical limiting element in semi-arid ecosystem productivity and presents particular challenges in Sahelian countries such as Senegal. The landscapes are characterized by the presence of two common semi-arid shrubs (Piliostigma reticulatum and Guiera senegalensis), both of which may be important hydraulic regulators in these water-limited ecosystems....
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Redacted for Privacy Maria Ines Dragila Water availability is a critical limiting

  • Gene Expression, Structure Elucidation, and Bioactivity of Aspergillus Natural Products

    Creator:
    Neuhaus, George F.
    Abstract:
    The study of natural products (NPs) and their application has shaped humanity. Starting with the idea of using plants as medicine, it has now grown into the science of purifying and identifying organic molecules from nature to study their inherent biological activities. Understanding the molecular structures of NPs is the...
    Resource Type:
    Dissertation
    Full Text:
    organisms, fungi have a record of producing a multitude of small organic molecules that have impacted