UMD Theses and Dissertations
Permanent URI for this collectionhttp://hdl.handle.net/1903/3
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 given thesis/dissertation in DRUM.
More information is available at Theses and Dissertations at University of Maryland Libraries.
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Item Marley's Resurrection: Reimagining an Anne Arundel County Community Hub(2024) Sanabia, Rafael Christopher; Cross, Marcus; Architecture; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Shopping malls over the course of American history have served as key hubs for visitors (either local or distant) to shop, dine, and be entertained. Though many malls have evolved with time and society through the incorporation of modern architectural elements and consumer needs/amenities, several shopping malls have faced significant declines. The rise of online shopping, fast fashion, high maintenance costs, lack of modern consumer/community amenities/needs, and outdated environments are some of prevalent reasons that have caused these retail centers to fall victim to abandonment, neglect, continual ownership change, and financial issues– ultimately becoming “dead”. Exhibited distinctly by Marley Station Mall in Glen Burnie, Maryland, this historic community hub in Anne Arundel County is now an outdated, low tenant and visitor occupancy building that no longer serves its community efficiently. This thesis will explore the redevelopment of this historic dead mall site into a new, sustainable community hub that meets its community’s needs and supports the county’s general development plan, Plan2040 that will positively impact the future.Item MODELING GROUNDWATER FLUCTUATIONS IN THE COASTAL PLAIN OF MARYLAND: AN ANN POWERED STRATEGY(2024) Steeple, Jennifer Lynne; Negahban-Azar, Masoud; Shirmohammadi, Adel; Environmental Science and Technology; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Groundwater management in the face of climate change presents a critical challenge with far-reaching implications for water resource sustainability. This study evaluates the effectiveness of Artificial Neural Networks (ANNs) as predictive tools for estimating current groundwater levels and forecasting future groundwater levels in the Aquia aquifer in the Coastal Plain ofMaryland. The groundwater levels of the Aquia aquifer have declined under the pressures of land use change, increases in agricultural irrigation, and population growth. We tested, trained, and employed eight county-level artificial neural network (ANNs) models to predict and project Aquia aquifer groundwater levels for the near (2030-2050) and far (2050-2100) future under two socio-economic pathways (SSP245 and SSP585). The models exhibited significant predictive performance during testing (R²= 0.82-0.99). Minimum temperature and population were the most influential variables across all county-based models. When used to forecast groundwater level under two climate scenarios, the models predicted declining groundwater levels over time in Calvert, Caroline, Queen Anne’s, and Kent counties, aligning with regional trends in the Aquia aquifer. Conversely, Anne Arundel, Charles, St. Mary’s, and Talbot counties exhibited projected increases in groundwater levels, likely influenced by correlations with the variable irrigated farm acreage, underscoring the importance of considering nonlinear relationships and interactions among variables in groundwater modeling. The study highlights the ability of ANNs to accurately predict county-scale groundwater levels, even with limited data, indicating their potential utility for informing decision-making processes regarding water resource management and climate change adaptation strategies. This study also assessed the usability of multiple methods to fill in the missing data and concluded that using the repeated groundwater level data still resulted in powerful ANN models capable of both predicting and forecasting ground water levels in the Coastal Plain of Maryland.Item CHAOS AND CONSPIRACY: THE HAGERSTOWN DRAFT RIOTS AND THE WHISKEY REBELLION(2024) Lowery, Kourtney Renea; Brewer, Holly; History; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)ABSTRACT Title of Thesis: CHAOS AND CONSPIRACY: THE HAGERSTOWN DRAFT RIOTS AND THE WHISKEY REBELLION Kourtney Renea Lowery, Master of Arts, 2024 Thesis Directed By: Professor Holly Brewer, Department of History This thesis explores the events of Washington County, MD in September 1794 to re-establish the significance of the Hagerstown Riots and their connection to the Whiskey Rebellion in Pittsburgh as well as to broader revolutionary ideals. The riots were a localized event in which the militia openly disobeyed orders. Citizens soldiers used militarized force to display their opposition to the excise tax and militia draft. Residents and many local leaders also opposed these measures and favored a progressive political and economic system. The Hagerstown Riots are an important microhistory and look at early American rebellion, protestors, and redress of grievances. The protestors at the Hagerstown Riots were angry with the excise tax and economic and political policies that the federal government created policies that were antiquated and unfairly administered. Hamilton’s taxation scheme was modeled on a British taxation system which colonials had fought against. They viewed these policies as created by elites in the federal government. State governments and officials, meanwhile were becoming more egalitarian in places like Maryland, Pennsylvania, and North Carolina. Washington County, Maryland showcases these frustrations and changes by retracing the dynamics of the rioters, officials, and militia. It also seeks to resolve why this event has been forgotten. The riots decenter the Whiskey Rebellion from an isolated large uprising in Pennsylvania to a broad movement that includes local events such as the Hagerstown riots, and that started before the American Revolution.Item MDPCP Primary Care Practice Capabilities and Care Management Delivery among Maryland Medicare Beneficiaries(2024) Ector, Kaitlynn Robinson; Sehgal, Neil J.; Health Services Administration; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Care management is one of the core components of comprehensive primary care, which represents the future direction of primary care in the United States. Nearly twenty percent of Medicare beneficiaries experience 30-day readmissions. While primary care is uniquely positioned to provide care management services associated with reducing readmissions, only 50 percent of older adults who have experienced 30-day hospital readmissions receive outpatient care. The goal of this dissertation was to identify structural and process components associated with the delivery of care management services to Maryland fee-for-service (FFS) Medicare beneficiaries, to examine geographic variation in the delivery of care management services, and to examine the association between the provision of care management services and patient health outcomes. This dissertation explores the relationship between structural and process components of care delivery and the delivery of care management services with three aims: (1) examine the association between primary care practice structural and process capabilities and the delivery of care management to Medicare beneficiaries and whether this association is altered by primary care practice medically underserved area (MUA) designation, (2) examine the association between Health Equity Advancement Resource and Transformation (HEART) payments and care management comprehensiveness and whether this association is altered by primary care practice care management delivery option, and (3) identify unique trajectories of comprehensive care management performance and examine the association between care management trajectories and readmission rates. Several key findings and implications are identified through the exploration of these aims. Increased primary care practice-level capabilities were associated with increased care management comprehensiveness. There was geographic variation in the provision of care management services among Maryland FFS Medicare beneficiaries. Next, prospective HEART payments were associated with increased care management comprehensiveness, and this association varied according to MUA designation and care management delivery options. Additionally, intensive partnerships between care transformation organizations (CTOs) and primary care practices improved access to comprehensive care management services. Finally, four unique classes of comprehensive care management performance were identified, and these care management performance classes had distinct patient characteristics and geographic locations. Among the low care management performance class, increased comprehensiveness among care management services was associated with decreased unplanned readmissions over time. This dissertation provides evidence that geographic variation in the provision of care management exists and includes guidance on how to assess geographic variation in care management services across the United States. These results also provide valuable evidence about how prospective equity-based payments can transform care delivery in primary care settings. Lastly, this dissertation presents a novel method of program performance evaluation that can be applied to all evaluations of Medicare demonstrations.Item FROM HARM TO HOPE: REIMAGINING AN ABANDONED ASYLUM AS A SPACE OF REFLECTION, REJUVENATION, AND REJOICE(2023) Reise, Matthew; Sullivan, Jack; Plant Science and Landscape Architecture (PSLA); Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)The Crownsville State Hospital opened in 1913 as the first and only mental institution in the state of Maryland to serve the Black community. After 91 years of operation rife with neglect, abuse, exploitation, and other acts of inhumanity, the hospital closed and has laid virtually abandoned since. In this thesis, I will propose ways of reactivating Crownsville’s historic campus through acknowledging the property’s horrific past, by providing support and amenities to the region’s most vulnerable individuals, and by creating space to celebrate the identity of communities who were historically persecuted on the grounds. I will explore the Crownsville campus through the lens of a cultural landscape, and attempt to balance the preservation of existing assets with the development of new community features.Item ANALYSIS OF THE CONTRIBUTORY FACTORS TO THE SEVERITY OF BICYCLE, PEDAL-CYCLE, AND PEDESTRIAN RELATED CRASHES IN MARYLAND(2023) Imonitie, Livingstone; Cirillo, Cinzia; Civil Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Walking and cycling have numerous health benefits, but these popular modes of transportation are prone to numerous collisions with motor vehicles. The goal of this study is to examine some of the factors that contribute to the severity of crashes in Maryland, which include property crashes, injury crashes, and fatal crashes. The light condition, junction condition, road surface condition, lane type, road condition, road division type, weather condition, time of day, population density, and the presence of schools were all considered. To demonstrate the relationship between each variable and the severity of the crash, the ordered logistic regression model was used. According to the findings, there was a positive significant relationship between the severity of crashes and crashes that occurred in areas with no lighting, at non-intersections, and on roadways with a positive median barrier. The frequency of crashes in various regions was also influenced by population density, time of day, and the presence of schools.Item Occurrence of Pharmaceuticals and Personal Care Products (PPCP) & Artificial Sweeteners (AS) in Surface Waters of Maryland's Chesapeake Bay Western Shore(2022) Gibbs, Alexandra Marie; Filoso, Solange; Gonsior, Michael; Marine-Estuarine-Environmental Sciences; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)In the United States, nutrient, personal care products (PPCP) and artificial sweeteners (AS) pollution in lakes, rivers, and estuaries is a problem that has been recognized for decades and is of special concern for many in coastal Maryland. PPCP are used on a daily basis, and include prescription analgesics, antibiotics, over-the-counter medications, fragrances, and cleansers. AS are synthetic sugar substitutes, ubiquitous in everyday food and drink, including soft drinks, baked food and dairy products. The widespread use of PPCP and AS by human populations results in their sustained contribution to surface waters via wastewater treatment. This study used 13 PPCP and 2 AS to describe their sources and temporospatial patterns in Maryland’s Western Shore. Sampling was conducted over three seasons in 2021 at 79 sites, including headwater streams, groundwater, and rivers feeding into the Chesapeake Bay. Sites were influenced by a mix of wastewater treatment plants (WWTP) and onsite wastewater treatment systems (OWTS). The detection frequency of the study compounds ranged from 2% to 100% in large catchments and 31% to 100% in headwater catchments. Six PPCP and AS were measurable at 80% or more of the sites, illustrating their ubiquitous presence throughout the study area. During the study, individual PPCP and AS concentrations were highly variable temporally, ranging from non-detectable to 6.58 μg/L. Major factors controlling concentrations were proximity to wastewater treatment, discharge and season. Four compounds—Ace-K, carbamazepine, sucralose and caffeine—were used as tracers to identify wastewater sources as they have distinct removal efficiencies during wastewater treatment and have anthropogenic origins. Caffeine to sucralose/Ace-K/carbamazepine ratios were used to identify discharges of untreated wastewater. Finally, PPCP and AS concentrations were explored in one headwater stream during storm events. Stormflow discharge was shown to impact the water quality of the receiving waters. The combination of discharge data, OWTS distribution data, an extensive suite of PPCP and AS and varied catchment types used in this thesis contributes to the understanding of human sourced wastewater pollution in coastal communities.Item Odd Characters: Queer Lives in Nineteenth-Century Baltimore(2020) SCHMITT, KATHRYN; Lyons, Clare; History; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)Queer history in Baltimore began long before the twentieth century. People who diverged from societal norms of gender and sexuality were always present in Baltimore’s history, and they can be seen through media representations and popular press of the time period. Even when representation of queerness in media was less common, stories of people who diverged from gender and sexual norms were still distributed to the public. Media representations provided inspiration and information to people who did not have access to a group of like-minded people through a distinct subculture. Queer Baltimoreans drew from media representations, early stages of a developing subculture, or their own personal thoughts and feelings to inform their gender and sexual identities. Despite the legal and social measures restricting these people from living their lives as freely as they might wish, they still found individualized ways to live life outside of gender and sexual norms.Item MEADWORKS – HYDROLOGY, ECOLOGY, MEAD AND ARCHITECTURE(2019) Huck, Kyle Patrick; Noonan, Peter; Architecture; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)This thesis seeks to redefine the relationship between communities and water infrastructure through a scalable and adaptable hybrid architectural solution. By focusing on the ambiguous intersection of nature and the built environment, this thesis will make an attempt at place-making in a setting typically disregarded by cities and communities. Challenging the boundaries of public infrastructure, architecture, and landscape architecture, this thesis will provide a dynamic solution to the water pollution epidemic of the Chesapeake Bay that involves subliminal community awareness and engagement. Through the program of a meadery, beekeeping, agriculture, and brewing will integrate with water treatment infrastructure to mutually benefit all processes.Item The Sole Measure of Service: A Social History of Baltimore's Public Libraries During World War II(2019) Coddington, Gwenlyn; Woods, Colleen; History; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)This thesis examines the history of public libraries in Baltimore and Maryland during World War II. Drawing from contemporary newspapers and institutional records, it argues that World War II expanded institutional opportunities for public libraries while exposing their limitations as agents of social change. Concentrating on how Baltimore’s libraries successfully contributed to and enabled the war’s information economy undercuts the narrative of libraries’ impotency as information centers during this period by locating their validation among the communities they served, rather than their relationship with the state or their postwar status. However, even as the war enabled this transformation, it simultaneously exposed the limits of libraries’ social ideology, destabilizing their position as institutions of social progressivism. Analyzing gender discrimination within librarianship and the experiences of African American Marylanders as users and library professionals demonstrates the limited vision Baltimore’s librarians held for enacting meaningful change within their institutions and communities.