DRUM - Digital Repository at the University of Maryland

DRUM collects, preserves, and provides public access to the scholarly output of the university. Faculty and researchers can upload research products for rapid dissemination, global visibility and impact, and long-term preservation.

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Submit to DRUM

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Equitable Access Policy

Equitable Access Policy

The University of Maryland Equitable Access Policy provides equitable, open access to the University's research and scholarship. Faculty can learn more about what is covered by the policy and how to deposit on the policy website.
Theses and Dissertations

Theses and Dissertations

DRUM includes all UMD theses and dissertations from 2003 forward.

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Recent Submissions

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    America at 250: Library Programming on Black Americans in the Founding Era, A Survey
    (2026-10-09) Baker, Lindsey; Harper, Arthur; McPherson, Shabrina; Sweeting, Lana; Wilson, Aaron; Robinson, Deborah
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    Electronic Supporting Data: Sulfated Prism[6]arene Binds One Guest Internally and One Guest Externally
    (Beilstein-Institut, 2026) Bazan-Bergamino, Emmanuel A.; Ayoub, Steven; Mobley, David L.; Isaacs, Lyle; Isaacs, Lyle
    We report the synthesis of sulfated prism[6]arene (Pr[6]AS) by reaction of (HO)12Pr[6] with SO3•pyridine in 35% yield. Pr[6]AS has very good solubility in water (>30 mM) and does not undergo self-association according to 1H NMR dilution experiments. Qualitative 1H NMR investigations show that guest resonances shift dramatically upfield and become significantly broadened upon complexation with Pr[6]AS. Isothermal titration calorimetry (ITC) experiments show that Pr[6]AS forms ternary complexes (Pr[6]AS•guest2) with hydrophobic ammonium ions in phosphate buffered saline with -values (Ka1 x Ka2) values up to 6.84 x 1013 M-2. Molecular dynamics simulations show that Pr[6]AS firmly binds one guest (6q, Me4Bipip) within its cavity and a second guest (6q, Me4Bipip) on the convex region of Pr[6]AS in close proximity to the externally directed sulfate substituents. Uncomplexed Pr[6]AS holds 7.6 ± 1.9 H2O and one Na+ ion within its cavity. Formation of the 1:1 and 1:2 Pr[6]AS-6q complexes results in expulsion of the Na+ ion and approximately five of the solvating H2O molecules. Intriguingly, the combination of larger naphthalene walls and sulfate ionic groups that are conformationally restricted creates a secondary guest binding site on the exterior of Pr[6]AS which suggests a route toward design of high molecularity complexes.
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    Coastal Adaptation in a Changing Climate
    (UMCES, 2026-09) Ávila-Flores, Giovanni; Badri, Lili; Botero, Camilo; Forbes, Donald; Kehoe, Karly; Kelsey, Heath; Kewachuk, Teresa; Labrador, Melissa; Manson, Gavin; Manuel, Patricia; Maracle, Mitch; Mombourquette, Garrett; Ollerhead, Jeff; Parewick, Kathleen; Winkler, Nicolas; van Proosdij, Danika
    Atlantic Canada, like other areas, is facing accelerating sea-level rise, stronger storms, decreasing sea ice, and accelerating, more extensive coastal erosion and flooding. Coastal adaptation reduces the risk from these processes—made more intense by climate change—but often requires difficult decisions, changes in human behavior, and agreement over shared principles to guide action. In keeping with the Thinkers Lodge tradition of addressing complex societal challenges, a small group of international adaptation experts gathered in Pugwash, Nova Scotia, to consider guiding principles for successful coastal community adaptation both in the Maritimes and beyond. This document summarises ideas discussed across six coastal adaptation topics.
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    Radiolysis-Induced Electric Fields during Liquid-Phase Transmission Electron Microscopy
    (2026) Faccini de Lima, Camila; Woehl, Taylor J.
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    Montgomery County Small Scale By-Right Housing for the R-60 Zone
    (Partnership for Action Learning Sustainability (PALS), 2026-05) Cramer, Ryan; Fagoaga, Gabriella; Gargano, Olivia; Gonzalez, Elias; Kashmiri, Rabia; Lambert, Ella; Motevalli-Aliabadi, Peymaan; Romero Andrade, Elizabeth; Rubin, Bennet; Sunshine, Madison; Vawdrey, Pete; Vo, Xuan; Williams, Mya; Noonan, Peter
    Montgomery County Housing Study This study evaluated opportunities to introduce small-scale, by-right housing in Montgomery County’s R-60 zone through a streamlined approval process for duplex and triplex development on individual residential lots. The work focused on expanding housing choice while maintaining compatibility with existing neighborhood character. The study developed market-responsive duplex and triplex prototypes for three representative R-60 lots. Seven representative lots were selected that represented a variety of common lot typologies within the study area: corner lots, mid-block lots standard (rectangular shaped) , and mid-block non standard (non- rectangular shaped lots). A further sub typology characteristic for each primary type included lots that were either narrow street frontage/ deep lots, and wide street frontage/ narrow lots. Pairs of students were matched with each lot type. Each parcel was analyzed through the lens of duplex and triplex typologies, generating 14 specific architectural inquiries. Design concepts included site plans, floor plans, building elevations, architectural style options, and street-level renderings illustrating how these housing types could fit within established neighborhoods. The initial studio design explorations provided Montgomery County with a set of solutions for enabling small-scale residential infill and increasing housing options through predictable, by-right development. Project Goals: • Explore Duplex and Triplex housing typologies across a range of Montgomery County R-60 lot types. • Integrate new housing within existing urban neighborhoods. • Enhance resident well-being through high-quality, livable design. Attainable Mass Timber Housing Competition During the final phase of the term, fourteen students worked in pairs to develop seven architectural submissions for the ACSA 2026 Timber in the City: Urban Habitats Competition. These designs investigated advanced timber residential systems to address the requirement for accessible, transit-oriented urban living through ecological and low-carbon construction methodologies. Building upon the R-60 duplex and triplex research, this study increased density by prototyping larger multifamily structures consistent with missing-middle housing principles. The resulting proposals explored various missing-middle scales and typologies, employing mass timber and other wood-based systems to create replicable, context-sensitive, and environmentally responsible housing. Through rigorous site analysis and design development, students produced visionary concepts demonstrating how sustainable materials can support resilient, inclusive communities and the future of urban living. Project Goals: • Increase attainable urban housing opportunities. • Explore higher-density Missing Middle housing typologies. • Integrate new housing within existing urban neighborhoods. • Advance sustainable, wood-based construction strategies. • Enhance resident well-being through high-quality, livable design.