Theses and Dissertations from UMD

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New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a give thesis/dissertation in DRUM

More information is available at Theses and Dissertations at University of Maryland Libraries.

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    DECENT, SAFE, AND SANITARY? PUBLIC HOUSING AND THE ENVIRONMENT OF EASTERN WASHINGTON, D.C., 1940-1965
    (2020) Shapiro, Justin; Zeller, Thomas; History; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    This dissertation examines the relationships between the physical environment and the history of public housing in Washington, D.C. from the 1940s to the 1960s. The environmental features of public housing complexes, as well as those of the landscape around them, significantly shaped the outcomes of the National Capital Housing Authority’s (NCHA) projects. The scale of public housing construction during that period entailed sweeping and dramatic transformations in the landscape. At the same time, the NCHA found itself constrained by material and financial pressures coming from a variety of bureaucratic and institutional sources. Those pressures limited the NCHA’s ability to respond to environmental stresses at various public housing sites. In the absence of adequate responses from the NCHA, the environment played a significant role in determining the outcomes of the District of Columbia’s public housing program. The physical nature of the NCHA’s choice of sites, as well as the materials that it used, turned public housing complexes into sites of environmental injustice rather than the decent, safe, and sanitary housing that the Authority envisioned.
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    Nutrient effects on phytoplankton community composition in the eutrophic Anacostia River and a focus on diatom physiology
    (2019) Gleich, Samantha Julia; Glibert, Patricia M; Marine-Estuarine-Environmental Sciences; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    The Anacostia River, Washington D.C., is a freshwater ecosystem that historically received high concentrations of nutrients from sewage and stormwater outfalls. Restoration efforts have been implemented recently that may improve water quality and alter the relative abundance of different phytoplankton taxa in the river. To determine the effects that environmental shifts may have on diatom abundance and phytoplankton community composition in the Anacostia River, a mesocosm experiment and laboratory studies were conducted. The results of the mesocosm study revealed that diatoms were consistently outcompeted by cyanobacteria. Additionally, phosphorus enrichment led to a 50% increase in cyanobacterial abundance and decreased the abundance of diatoms. In the culture study, shifts in water temperature and nutrient availability altered diatom growth rates, photosynthesis, silica deposition, and NO3- reduction. Together, these studies highlight the interactive effects that nutrient availability and temperature may have on the physiology and subsequent growth of diatoms in the Anacostia River.
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    Bridging Anacostia
    (2007-05-21) Powell, Corey J; Wortham, Brooke D; Architecture; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    Countless cities face issues of disconnection. Washington, DC's Anacostia neighborhood remains physically, socially, and economically separated from the city at-large, while failing to take advantage of its proximity to an under utilized waterfront. This thesis explores ideas about "bridging", not only physically but also metaphorically and socially. Interstate 295, as a physical and perceptual barrier, has had the most negative impact on this area. This thesis proposes to create connections between Anacostia, the waterfront, and greater Washington, DC by engaging land use into and beneath the highway thereby creating thresholds between Anacostia, the waterfront, and greater Washington, DC. Furthermore, this thesis sites the Frederick Douglass neighborhood and heritage center which not only bridges the highway, but also creates a physical link between historic Anacostia and the waterfront.