Digital Commons Network^™

Documenting Death: A Question Of Sovereignty In The Cairo Geniza, Thomas Adkins

Theses and Dissertations

How can death offer a case study for the question of sovereignty in eleventh to thirteenth century Egypt as it was performed by sovereigns, officials, and subjects alike, and, in this context, how can the documentary practices preserved in the Geniza be understood as an instrument to perform sovereignty? This thesis uses death as a case study in the same way that scholars of the medieval Islamic world have studied taxation, administration, and ceremonials to understand sovereignty as it was performed by the state, officials, and subjects. This performance of sovereignty by each implicated actor left a rich documentary trail, …

Proven Strategies Of Fast-Food Store Managers For Delivering Excellence In Service, Donovan D. Thompson

Walden Dissertations and Doctoral Studies

No abstract provided.

Advancing Safe Iv Amiodarone Practices In Acute Care Settings, Ariel Lee

Walden Dissertations and Doctoral Studies

No abstract provided.

The Politics Of Recognition: Charismatic Authority And The Restoration Of Male Purpose, Gabriel A. Brigham

Sociology Undergraduate Senior Theses

This thesis examines how three prominent charismatic figures, Donald Trump, Andrew Tate, and Jordan Peterson, convert experiences of epistemic dislocation into ideological belonging among a specific subset of men experiencing status anxiety, social isolation, and institutional distrust. Drawing on social identity theory, epistemic injustice theory, affect control theory, and Weberian charismatic authority, the study develops a theoretical model called the Epistemic Pathway to Digital Belonging, which describes radicalization-adjacent persuasion as a sequential process of epistemic and emotional repair. Through this framework, perceived identity threat produces interpretive instability and negative self-sentiments, instability produces recoil from mainstream discursive spaces, recoil produces an …

Collaborative Practices Of School-Based Professionals In Conducting Multilingual Assessments, Megan Buckley

Theses and Dissertations

The current study evaluates the perceived best practices and current actual practices of school-based professionals in interprofessional collaboration and in conducting multilingual assessments. The participants consisted of 341 professionals from across the United States in the following groups: speech language pathologists (SLPs), assistants, special education teachers, general education teachers, specialists, school psychologists, and administration. Participants responded to an online Qualtrics survey with a total of 74 possible items regarding demographics, caseload, multilingual assessment practices and beliefs, and interprofessional collaboration practices and beliefs. Results were analyzed with descriptive and inferential statistics. Results indicate that participants recognize the need for interprofessional collaboration …

Developing Custom High Resolution 3d Printers For Microfluidic Device Fabrication, Dallin Scott Miner

Theses and Dissertations

The advancement of microfluidics in biomedical diagnostics and lab-on-a-chip systems is increasingly dependent on the ability to fabricate complex, three-dimensional architectures with high-resolution negative features. While Digital Light Processing Stereolithography (DLP-SLA) has emerged as a leading fabrication method, it remains constrained by a fundamental trade-off between feature resolution and build volume, as well as challenges regarding fabrication consistency and design accessibility. This dissertation presents an integrated ecosystem of hardware, materials, and software designed to overcome these barriers and enable scalable, high-resolution microfluidic fabrication. We first introduce a novel multi-resolution 3D printing technique utilizing a dual-optical engine architecture, comprising a Very …

Speech Motor Variability In Typical Speakers With Blocked, Predictable, And Unpredictable Stimulus Order, Jocelyn L. Turley

Theses and Dissertations

This study examined the effect on spatiotemporal variability of speech in reading threesyllable, five-syllable, and eight-syllable phrases in blocked, predictable, or unpredictable order. This was done to address the need in the field for a greater understanding of the interactions of stimulus length and stimulus presentation order. The experiment was completed with 35 typically speaking young adult participants. Participants read variable stimuli in the different presentation orders to measure the spatiotemporal variability in different conditions with electromagnetic articulography and audio recording software tracking their speech. The statistical analysis main condition effect revealed a significant impact on all phrase lengths between …

Effects Of A Complexity-Based Approach For Treatment Of Be Verbs In Children With Developmental Language Disorder: A Single-Case Design, Megan Shawnee Rowe

Theses and Dissertations

The purpose of this study is to examine whether a complexity-based treatment approach improves the production of BE verb structures in a child with developmental language disorder (DLD). One school-age child with morphosyntactic deficits participated in a single-case AB experimental design. Treatment targeted a complex structure (auxiliary BE questions), and performance was measured using experimental probes, a narrative language sample, and the Test of Early Grammatical Impairment (TEGI). Results indicate a functional relationship between treatment and increased accuracy of the treated structure, with a medium effect size (τ = .695, p = .019). In addition, the participant demonstrated generalization to …

Prosodic Characteristics Of People With Moderate Broca's Aphasia: Measures Of Pitch And Intensity, Morgan Smith Lambert

Theses and Dissertations

Aphasia is an acquired neurogenic language disorder commonly treated by speech language pathologists (SLPs). People with aphasia (PWA) experience various language deficits which impact their ability to effectively communicate with their environment. One of these deficits which impacts individuals with non-fluent aphasia is dysprosody. The purpose of this study is to acoustically evaluate the pitch and intensity of individuals with moderate Broca's aphasia along with age and gender matched control participants across a variety of task types in order to help SLPs better understand how to effectively assess and treat prosody in PWA. This study is an extension of Pickard …

Evaluating C-Band Scatterometer Images For Estimating Deforestation In The Amazon Rainforest, Alex Mcbride

Theses and Dissertations

Satellite-based active microwave sensors have been successfully employed for a wide range of vegetation and soil studies. Spaceborne microwave instruments have proven particularly useful for wide-scale monitoring of the vegetation, especially under conditions that limit the effectiveness of high-resolution optical sensors. Satellite scatterometry can be used to detect and model deforestation in the Amazon rainforest by correlating changes in the C-band backscatter data to observed changes in vegetation coverage. The exploratory methodology developed in this paper applies the longest continuous microwave satellite record to the problem of deforestation. The backscatter measurements taken by the ERS and ASCAT missions provide more …

Hot Jupiter Atmospheres Through Time, Annabelle E. Niblett

Physics and Astronomy Undergraduate Senior Theses

Transmission spectroscopy of hot Jupiters enables mass and atmospheric composition measurements, providing insight into population dynamics and evolution when other methods are hindered by stellar activity. To effectively plan observations and interpret transmission spectra, we must have a robust understanding of how atmospheres evolve over time. To that end, we present a suite of hot Jupiter transmission spectra models with ages ranging from 3 Myr to 11 Gyr. We incorporate the cooling and contraction of the planet, which impacts the atmospheric profile, and the evolution of the stellar UV spectrum, which moderates photodissociation and photoionization. Using PICASO,  VULCAN, and FastChem …

Lubricating Abilities Of Choline Amino Acid Protic Ionic Liquids Under High Temperature And Electrified Conditions, Esmond Lau

Theses

This work explores the tribological properties of choline amino acid protic ionic liquids (PILs) as environmentally friendly lubricants under high temperatures and electrified conditions. These conditions are found in the automotive sector, notably in internal combustion engine vehicles (ICEVs) and electric vehicles (EVs). Lubrication technologies are vital to improving the efficiency and operating lifetime of moving components in automotive drivetrains. The use of ionic liquids (ILs) is actively being researched, with ongoing exploration of their lubricating potential and unique physicochemical characteristics. Compared to traditional petroleum-based lubricants, ILs’ ability to thrive in these conditions will offer substantial benefits, immediately extend operational …

Lack Of Effects Of Autistic Traits On Adjunct Control Processing, Alyssa Crezee

Theses and Dissertations

Autism has effects on social, communication, and information processing factors (American Psychological Association, 2022; Happé & Frith, 2006). Sentence processing is a type of information processing that synthesizes both discourse and local information (e.g., syntactic and morphological). This thesis explores potential effects of autistic traits on sentence processing in the context of adjunct control structures. In a two-part study, adult English L1 participants (n=118) were administered a self-paced-reading (SPR) task with comprehension and acceptability questions for task 1. Task 2 consisted of an online survey containing three standardized autism questionnaires: the Autism Quotient (AQ; Baron-Cohen et al, 2001), the Broad …

Examining The Effects Of A Complexity-Based Treatment For One Child With Down Syndrome Using Single-Case Design, Markelle Luddington

Theses and Dissertations

Common language difficulties observed in English-speaking children with Down syndrome (DS) and developmental language disorder (DLD) include challenges with marking tense and agreement on verbs, particularly with BE verbs. In addition, difficulties with syntactic movement may further exacerbate these challenges, often resulting in increased omission errors. A complexity-based approach to treatment target selection has been suggested as one method to address these needs. Therefore, this single-case design study examined the effects of a complexity-based treatment approach for one participant with Down syndrome. Specifically, this study investigated the effects of targeting a more complex treated structure, auxiliary BE questions, and the …

Ai In Precision Medicine: Redefining Blindness Treatment Via Retinal Stem Cell Differentiation, Calissa Leong, Tiffany Nguyen

Interdisciplinary Design Senior Theses

Age Macular Degeneration (AMD) is currently the leading cause of blindness, driven by the degradation of Retinal Pigment Epithelial (RPE) cells. Stem-cell based therapies, particularly those involving induced pluripotent stem cells (iPSCs), typically consists of differentiating stem cells into RPE cells in vitro and transplanting them into the subretinal space. Our goal is to improve the accuracy of differentiation into RPE cells to better promote retinal regeneration. Traditional methods to alleviate symptoms of AMD is through therapeutic medications to slow disease progression, though stem cell therapy has emerged as a promising alternative. However, despite its potential, stem cell therapy presents …

Sequencing Of Chenopodium A-Genome Diploids To Identify Potential Mechanisms Of Speciation: A Preliminary Study, Riley Roser

Theses and Dissertations

The genus Chenopodium is of increasing significance, mainly due to allotetraploid quinoa (C. quinoa Willd.,2x = 4x =36, AABB genome) becoming globally recognized for its high nutritional value and tolerance for stress. Diploid A-genome relatives of quinoa in the Western Hemisphere have shown speciation patterns congruent to adaptive radiation, particularly in the North American continent, where a number inhabit ecological niches while others form mixed populations where they are sympatric. Characterization of the genetic mechanism(s) underlying this rapid speciation, could clarify their potential usefulness for improving quinoa . Previous whole-genome assemblies of AA diploids C. watsonii A. Watson and C. …

School Safety Officials’ Perceptions Of Social Media And School Violence In Rural School Districts, Dwayne Wheeler

Walden Dissertations and Doctoral Studies

No abstract provided.

Experiences Of U.S. Airmen In Navigating Cross-Cultural Communication Within The Workplace, Monica Carloss

Walden Dissertations and Doctoral Studies

No abstract provided.

Effective Leadership Strategies For Quality Management Systems’ Implementation, Brittany Neighbors

Walden Dissertations and Doctoral Studies

No abstract provided.

Bridging The Disability Inclusion Gap In Certified Professions, Daina Devereaux

Walden Dissertations and Doctoral Studies

No abstract provided.

Staff Education To Registered Nurses On Internal Medicine Unit, Sidonie Alethe Brown

Walden Dissertations and Doctoral Studies

No abstract provided.

Emotion Work In Emergency Communication Workers: A Mixed-Methods Analysis On Well-Being, Katherine Luann Sweeney

ETDs from 2020-2029

Emergency communication workers play a vital role in public safety and healthcare, but they are frequently an overlooked population when studying well-being. With a survey sample size of N=336, and an interview sample size of N=24, this dissertation utilizes a mixed-methods approach to explore what kind of factors influence dispatcher well-being. The mixed-methods findings lead to three important outcomes. First, there are detrimental consequences of shift work on dispatchers’ overall health. Second, dispatchers report high levels of emotional exhaustion, stress, and trauma exposure. The qualitative findings suggest that the rewards associated with helping people outweigh the mental health consequences. Lastly, …

Smart-Biosense: Surface-Wave Molecular Aptamer-Based Recognition For Selective Whole-Cell Bacterial Detection, Eashan Selvarajah, Vikram Jangid

Interdisciplinary Design Senior Theses

One of the largest causes of food waste in the United States is recall or disposal of produce due to bacterial infection, with a prevalent cause being the pathogen Salmonella enterica Serovar Typhimurium. Current detection methods are inadequate for many use cases due to cost and speed of detection. In this paper, we propose and demonstrate a novel method of detecting the presence of S. Typhimurium quickly using a combination of aptamers and love-surface acoustic wave sensors. Our experiments demonstrate repeatable changes in sensor response during exposure to S. Typhimurium under test conditions. Our data shows a measurable difference in …

Schedagent: Dynamic Cpu Scheduler Selection Via Reward-Driven Behavioral Cloning, Rawan Bekheet

Computer Science and Engineering Master's Theses

Modern Linux systems ship with a single default CPU scheduler that remains active regardless of how workloads change over time. Although the sched ext framework permits loading alternative scheduling policies at runtime, existing approaches to selecting among them rely on manual configuration rather than automatic adaptation to workload characteristics. We present an automated scheduler selection system that monitors workload behavior and dynamically switches between scheduling policies. Using discrete-event simulations of four Linux scheduling policies, we formulate scheduler selection as a sequential decision problem with a composite reward signal covering latency, fairness, throughput, and CPU utilization, and apply a two-phase behavioral …

The Commons Of The Mind: Modeling Repeat-Player Behavior In Intellectual Property Infringement Disputes, Eliot Bridges Warner

University Honors Theses

This thesis investigates the applicability of Marc Galanter's 1974 model of repeat-player (RP) and one-shotter (OS) civil litigation to the domain of intellectual property (IP) infringement disputes. While Galanter's framework predicts that repeat players will enjoy structural advantages over one-shotters, this paper argues that IP deviates from that model in consequential ways. Unique features of IP infringement litigation, including the duty to enforce, the risk of invalidation at trial, the inverse relationship between firm size and infringement stakes, and compounding advantages accruing to large firms, produce a hierarchy of strategic advantage that is more steeply resource-dependent than Galanter anticipates.

Drawing …

Unraveling The Nanoscopic Characteristics Of The Heterogeneous Deep Eutectic Solvent Formed By Lauric Acid And N-Methylacetamide: An Experimental And Computational Approach, Laura X. Sepulveda

LSU Doctoral Dissertations

Deep eutectic solvents (DESs) are attractive systems for extraction and separation of compounds. One example of this is the DES formed by the combination of lauric acid (LA) and N-methylacetamide (NMA), system that has been shown to efficiently separate oil/water mixtures through gel formation between LA and oil molecules. Structural characterization of this system using small-angle X-ray scattering (SAXS) and vibrational spectroscopy revealed the existence of nanometer-scale LA domains embedded in a continuous polar NMA phase, where LA and NMA interact through hydrogen bonding. These LA domains are responsible for the separation efficiency of linear organic molecules. However, this DES …

Determinants Of Public-To-Private Transitions: Evidence From Firm-Level Selection Patterns, Joshua S. Wolfson

Economics Undergraduate Senior Theses

This paper considers which publicly traded firms are most likely to exit public markets through acquisition, and how those patterns differ between financial sponsors and strategic acquirers. Using a panel of 3,320 U.S. public firms from 2000 to 2024, I estimate discrete-time hazard models and find that lower valuation multiples, higher leverage, and stronger free cash flow predict going private. These characteristics vary for financial sponsors and strategic acquirers who select on different criteria. Strategic selection is driven mainly by leverage and valuation while private equity is also driven by free cash flow. These criteria are not stable over time, …

Distance And Trade Elasticity: The Red Sea Crisis As A Natural Experiment, Felix C. Feldman

Economics Undergraduate Senior Theses

This paper exploits the 2023 Houthi attacks on shipping through the Bab el-Mandeb Strait at the entrance to the Red Sea and the subsequent mass rerouting around the Cape of Good Hope to estimate modern-day elasticities with respect to effective trade cost. This event is unique among chokepoint disruptions as it did not lead to a complete blockage. Instead, many ships voluntarily rerouted away the area, but not all. This paper uses a structural approach to infer unobservable costs incurred by inframarginal Red Sea shippers. This paper combines a reduced-form gravity specification with a discrete route-choice model where ships select …

Exploring The Impact Of Leadership Development On The Sense Of Belonging Among Collegiate Black Men, Todd Lamont Jenkins

Theses and Dissertations

This qualitative case study used Strayhorn’s Sense of Belonging Model (2018) to examine how collegiate Black men experienced affirmation, connection, and mattering through participation in Leaders of the Free World (LFW), a culturally grounded program integrating mentoring, leadership development, and short term study abroad. Through semi structured interviews, a focus group, and document analysis, five themes emerged: (1) Global Exposure and Cultural Heritage, (2) Identity Development, (3) Academic Realignment, (4) Mentoring and Relationship Growth, and (5) Leadership Capacity Building. Findings show that LFW fostered the core belonging conditions Strayhorn (2018) identifies: psychological safety, meaningful relationships, validation, and institutional navigation support. …

U.S. Black Men’S Perceptions Of The Similarities And Interplay Among Mind-Body Practices, Spirituality, And Religion: A Qualitative Study, Khanh Pham

Theses and Dissertations

This qualitative study explored U.S. Black men’s perceptions of relations among mind-body practices (MBPs), spirituality, and religion to understand how these factors might influence Black men’s health. Reflexive thematic analysis was used to analyze data from individual semi-structured interviews with 18 Black male MBP instructors. Five themes were generated. The themes were (1) spirit(uality) is the foundation for Black men’s experience of life seen and unseen, (2) MBPs and religion are rooted in spirituality, (3) MBPs, religion, and Black culture share common characteristics, (4) MBPs and religion facilitate holistic wellbeing, and (5) confusion and negative perceptions about MBPs, spirituality, and …