Price Dispersion In Online Markets Increases During Periods Of Higher Demand As Firms Use Dynamic Pricing Strategies To Maximize Revenue Under Demand Uncertainty., Brooke Stewart

Honors Theses

This study investigates the phenomenon of price dispersion in online retail markets during high-demand periods, focusing on the role of dynamic pricing under conditions of demand uncertainty. Although online markets operate in a transparent way, and consumers find it cheap to search them, the price dispersion phenomenon, when the same product is sold at varying prices by various vendors, persists. The study discusses the case of higher dispersion of prices in high-demand times like holidays, sales events, or shortages of goods when there is uncertainty about the future demand, causing dynamic pricing models. In analyzing the price of 25 the …

Strategic Substrate Modification As A Mechanistic Probe In Photoredox Catalysis: An Nmr And Quantum Yield Study, Michael J. Payne

Undergraduate Honors Theses

The mechanism of the photoredox-catalyzed allylic arylation of cyclohexene with 1,4- dicyanobenzene (DCB) using tris(2-phenylpyridine)iridium(III) and a thiol hydrogen atom transfer (HAT) co-catalyst has been the subject of ongoing mechanistic debate. Three competing pathways have been proposed: radical-radical coupling, radical addition, and fragment-radical-radical coupling. In this work, methyl-substituted cyclohexene derivatives are employed as mechanistic probes to interrogate product distributions and reaction efficiency using ¹H and 2D NMR spectroscopy and external quantum yield measurements. Quantum yields across all substrates remained below one, confirming significant loss to unproductive pathways and ruling out a chain mechanism. Among the derivatives, 1-methylcyclohexene was found to …

Assessing Visual Analysis Skills With Board Certified Behavior Analysts: A Replication And Extension, Daniella Fronte

Thesis Projects

Visual analysis of single-subject data is a necessary decision-making method in the field of behavior analysis. This analysis helps practitioners evaluate the efficacy of their interventions and informs subsequent decisions to complete, continue, modify, or discontinue an intervention. The purpose of this study was to assess behavior analysts’ visual analysis skills and to evaluate whether using a decision-making flowchart increases correct clinical decisions. Talk-aloud data were used to analyze errors in behavior analysts’ decision-making. Additionally, the extent to which participants rated the flowchart’s significance and effectiveness was assessed. Four of 16 participants reached mastery in the baseline phase without access …

Preserving The Untold Stories: Leveraging Emerging Technologies (Ai And Machine Learning) For Archiving Hidden Histories Of Children And Families Impacted By The Little Rock School Integration Crisis, Oluseyi Noah Adebanjo

Theses and Dissertations

This thesis challenges the dominant narrative of the Little Rock School Integration Crisis by recovering the hidden histories of families and siblings who made integration possible but have been systematically overlooked by historians. While existing scholarship focuses on the Little Rock Nine as individual heroes, this research demonstrates that integration was fundamentally a family crisis requiring collective decision-making, economic sacrifice, and multigenerational support networks. Through close reading of published memoirs, newspaper clippings, school board minutes, and original oral history interviews with Phyllis Brown and Dr. Sybil Jordan Hampton, this study reveals how approximately 200 eligible families were systematically reduced to …

Disparities In Policing Through The Lens Of Indigenous Communities In Michigan: A Research Proposal, Abigail Ruddle

Honors Theses

This study examines the historical and contemporary factors shaping relationships between Indigenous communities and law enforcement in the United States, with a specific focus on tribal nations in Michigan. Using a historical framework that includes treaty-making, forced removal, and evolving legal decisions, this research examines the use of treaties and diplomacy to initiate new socio-political structures in Native American communities. Similarly, the emergence of policing in the United States impacted the relationship between law enforcement and Indigenous communities by creating hostility and distrust. The existing literature highlights themes of police violence and the paradoxical nature of over-policing and under-policing in …

Anterior Cruciate Ligament (Acl) Injuries In Female Athletes: Implications For Prevention And Rehabilitation, Natalie Amm

Honors Theses

Anterior cruciate ligament (ACL) injuries are among the most common lower limb injuries and pose significant physical, psychological, and long-term functional challenges for athletes. Additionally, research has suggested that females are up to eight times more likely to experience an ACL injury than their male counterparts. This increased risk is multifactorial with risks including anatomical structure, neuromuscular control, strength deficits, and hormonal fluctuations. However, the elevated risk of ACL injuries in female athletes may not solely be caused by biological differences, but also due to training programs and sports being designed around male athletes. This pushes us to change the …

Policy, Information, And Decision Making In An Actively Managed Portfolio, Anthony Lawrence Patterson

Honors Capstone Projects and Theses

No abstract provided.

Expression And Purification Of Mayaro Virus Nsp2 Protease, Emma Grace Tourville

Honors Capstone Projects and Theses

No abstract provided.

Nurse Education On Nonpharmacological Management Of Knee Osteoarthritis, Toyin Mary Ajayi

Walden Dissertations and Doctoral Studies

The Doctor of Nursing Practice (DNP) project aims to fill the gaps in the management of knee osteoarthritis (OA) in adults aged 40 to 75 years in a primary care practice. Knee OA is a common chronic disease that significantly impacts pain, mobility, and quality of life. Although there is empirical evidence that nonpharmacological interventions, including exercise, weight control, and self-management education, are effective, these methods are not consistently used in clinical practice, and pharmacologic treatment continues to be used. The project was designed to inform healthcare personnel about evidence-based nonpharmacological strategies to improve patient outcomes and reduce reliance on …

Staff Education On Early Sepsis Recognition For Medical-Surgical Nurses In The Acute Care Setting, Nadine Nzenga Udom

Walden Dissertations and Doctoral Studies

In this staff education project, I targeted early sepsis recognition and response among medical-surgical nurses. The practice gap at the site was nurses’ limited knowledge of sepsis indicators and screening tools, which contributed to delayed escalation of care. The practice-focused question guiding the project was “Does educating medical-surgical nurses on early sepsis recognition and response improve knowledge of early sepsis recognition and response?” I applied the analysis, design, development, implementation, and evaluation (ADDIE) and Johns Hopkins Evidence-Based Practice (JHEBP) models to design a structured sepsis education program for nursing staff. I searched for peer-reviewed literature via databases accessed through the …

Exploring The Experiences Of Faculty Members Educating Students Virtually Post-Covid-19, Raven Ashley Richardson

Walden Dissertations and Doctoral Studies

The COVID-19 pandemic significantly disrupted higher education, requiring institutions to rapidly transition to virtual learning environments and leaving faculty to manage increased workloads, stress, and challenges related to instructional quality and student engagement. The problem in this study is traditional faculty continue to experience these challenges in the post pandemic academic landscape, with implications for faculty wellbeing and student success. The purpose of this qualitative generic study was to explore experiences of traditional college faculty members educating students while transitioning from in-person to virtual learning environments post-COVID-19. Guided by the ecological systems theory, multilevel influences on faculty experiences were examined. …

The Lived Experiences Of The Strong Black Woman Cultural Convention On Black Women Counselors’ Emotional Intelligence, Pranati Walker

Walden Dissertations and Doctoral Studies

Emotional intelligence (EI) is a critical competency for counselors due to the relational and emotionally demanding nature of counseling. Although existing literature explored EI among Black women broadly, limited research examined the experiences of Black women counselors (BWCs). This descriptive phenomenological study was guided by the philosophy of phenomenology and explored the lived experiences and impact of the SBW cultural convention on the EI of BWCs. The researcher explored the lived experiences of BWCs regarding the SBW cultural convention and its impact on emotional intelligence. Participant data from eight semi-structured interviews were collected. The participants identified as female gender identity, …

Exploring Lived Experiences And Perceived Quality Of Life In Individuals With Parkinson’S Disease Engaging In Rock Steady Boxing: A Qualitative Study, Emma Norman

Capstone Projects

It is well established that exercise provides numerous benefits to the general population, including improved physical functioning, fall prevention, and better sleep (National Institute on Aging, 2025). For individuals living with Parkinson’s Disease, the benefits of exercise are especially meaningful as exercise plays a key role in managing symptoms. Regular exercise plays a critical role in managing both motor and non-motor symptoms of Parkinson’s Disease, contributing to improved quality of life and independence (Ellis & Rochester, 2018). A group fitness program for individuals with Parkinson’s Disease, called Rock Steady Boxing, has demonstrated positive quantitative outcomes, including improved balance, strength, and …

Development Of Purposeful Movement Breaks And Sensory Pathways To Enhance Student Engagement And Participation, Ashlyn Houck

Capstone Projects

Children in school settings frequently spend extended periods seated in classrooms, which can make it difficult to meet their sensory and movement needs throughout the school day. When these needs are unmet, students may demonstrate behaviors that disrupt learning and limit participation in classroom activities. This capstone project addressed the need for sensory and movement opportunities within the school environment. Objectives included establishing a baseline of teacher knowledge related to the sensory systems, implementing movement breaks within daily classroom routines, and introducing sensory opportunities in hallways to support smoother transitions. The project was implemented with second- and third-grade classrooms. Outcomes …

Promoting Maternal Well-Being: Occupational Therapy In Pregnancy And Postpartum, Nora Udrys

Capstone Projects

Navigating pregnancy and the postpartum period can be a complex experience for women. There is a lack of diverse information, accessible resources, and support during this phase of life. Hormonal levels fluctuate not only during pregnancy but after giving birth as well, contributing to significant physical, emotional, and cognitive changes. Some of these changes may create barriers to meaningful participation in daily occupations, contributing to feelings of isolation, mood disruptions, and decreased overall well-being. Occupational therapy has a unique role in supporting women through pregnancy and postpartum by helping them navigate these transitions through a holistic, client-centered lens. The purpose …

Sexuality And Intimacy: Education On Ot Approach, Abby Stritzinger

Capstone Projects

Providing proper education on sexuality and intimacy is important for increasing comfort when addressing sex and intimacy with individuals in the professional field.  “Sexual health requires a positive and respectful approach to sexuality and sexual relationships, as well as the possibility of having pleasurable and safe sexual experiences, free of coercion, discrimination and violence. For sexual health to be attained and maintained, the sexual rights of all persons must be respected, protected and fulfilled” (WHO, 2006a). Creating occupational therapists (OTs) that are comfortable addressing this topic is extremely important for the OT profession to continue to maintain its holistic, client-centered …

Expanding Nbcot® Exam Readiness Resources In An Entry-Level Otd Program, Thahiyatul Sarah

Capstone Projects

The National Board for Certification in Occupational Therapy (NBCOT®) exam is a critical requirement for entry-level occupational therapy (OT) practice in the United States; however, many students face challenges in effectively preparing for its clinical reasoning demands. This literature review examines existing research on NBCOT® exam preparation strategies to inform the development of a comprehensive exam content guide and resources tailored for OT graduate students. Existing barriers, including gaps in curriculum alignment, limited access to effective study tools, and high levels of student stress, highlight the need for more structured and accessible preparation methods. By examining key themes such as …

Expanding Access To Equine-Assisted Occupational Therapy: Integrating Clinical Application And Program Development, Deanna Rietveld

Capstone Projects

This capstone project explored the role of hippotherapy in occupational therapy through enhanced clinical practice skills as well as supporting program development through community education and funding accumulation for the capstone site organization. Guided by a needs assessment drawn from literature, site mentor input, and other local organizations providing similar services, it was determined that occupational therapy using equine movement provides more impactful results while simultaneously addressing deficits in a variety of areas, but lack of financial resources, community participation, and therapy scholarships threaten the opportunity to expand programs and provide access to individuals who would benefit from services. In …

Practical Exploration Of The Role Of Occupational Therapy In A Nature-Based School Setting, Emma Campbell

Capstone Projects

School-based occupational therapy (OT) plays a critical role in supporting children’s participation, development, and engagement in educational environments. However, non-traditional school settings often lack therapeutic supports, such as OT services. The purpose of this doctoral capstone experience (DCE) is to explore and expand the role of occupational therapy within a non-traditional academic setting, specifically a nature-based preschool program. Sunflower Farm’s preschool program provides a unique learning environment that supports children’s development through farm-based learning. While this setting offers rich opportunities for exploration and growth, additional supports are needed to facilitate students’ sensory processing, self-regulation, and participation.

The objectives of this …

An Analysis Of Surface-Level Macro And Microplastics Along Western Central Leyte, Philippines, Graham B. Morrison-Plumley

Electronic Theses and Dissertations 2020 - Present

With the pervasive use of plastics worldwide, their environmental effects can reach even the most remote ecosystems. This study examines both macro and microplastic pollution in the Greater Baybay region in western Leyte, Philippines. Samples from 10 separate sites within Baybay and its adjacent communities represent the unique environmental and geologic diversity of the central Visayan region of the Philippines. At each of the 10 sampling sites, 3 excavations were conducted, yielding 30 samples. Macroplastics were collected in the field, immediately around microplastic digs. Microplastic samples were analyzed in Florida Atlantic University’s Environmental Change Lab. It was determined that spatial …

Reproductive Season And Fecundity Reassessment Of Gopher Tortoises (Gopherus Polyphemus) In Southeastern Florida, Riley Waters

Electronic Theses and Dissertations 2020 - Present

The gopher tortoise (Gopherus polyphemus) breeding season occurs throughout spring and early summer across its distributional range, but recent research shows that in southeastern Florida, mating also occurs in the fall and winter months. This project evaluates the gopher tortoise’s extended reproductive season in southeastern Florida and female fecundity. The study, conducted at two locations in South Florida: Jupiter, FL and Boca Raton, FL, used field ultrasound equipment and radiographs to identify gravid females and determine clutch size. The data suggest a much earlier start to egg development and nesting, and the possibility of an extended egg development …

Brass Routes: Merging Performance, Pedagogy, And Entrepreneurship In The Creation Of Community-Based Brass Band Programs, Dylan Mashburn

Electronic Theses and Dissertations Archive

This dissertation examines the development, implementation, and evaluation of Brass Routes, a curriculum-based model and set of instructional tools designed to help existing secondary school band programs implement New Orleans-style brass band ensembles within their current schedules, personnel, and resources. As many schools face declining arts funding and increasingly standardized ensemble models, traditional band structures often fail to engage all students or reflect diverse musical identities. Brass Routes proposes an alternative ensemble model that integrates performance, pedagogy, and entrepreneurship to foster student engagement, leadership, and sustainability in school music programs. Grounded in culturally responsive pedagogy, informal learning practices, and community …

The Role Of Cannabinoid Receptors In Punishment-Driven Risky Decision Making, Sharoderick C. Lowe

Electronic Theses and Dissertations Archive

Risky decision-making is a feature of mental health disorders such as substance use disorder and schizophrenia and is often linked to alterations in the brain’s cannabinoid system. However, how cannabinoid signaling regulates punishment-based risky decision-making remains unclear. To address this question, we assessed the effects of multiple cannabinoid drugs on risky decision-making in male and female Long-Evans rats using the Risky Decision-Making Task (RDT). Following training, rats received varying doses of Δ⁹-tetrahydrocannabinol (THC; CB1/CB2 receptor partial agonist), ACEA (CB1 receptor agonist), Rimonabant (CB1 receptor inverse agonist), and AA-5-HT (FAAH inhibitor that increases endocannabinoid tone). THC did not alter risky choice …

An Exploration Of Attention And Breathing In Functional Voice Disorders, Kiley Hazelton Herr

Electronic Theses and Dissertations Archive

In functional voice disorders (FVD), voice dysfunction exists in excess or the absence of organic voice pathology. Modern etiologic frameworks emphasize cognitive, emotional, and autonomic processes in the onset and maintenance of symptoms, encapsulating FVD as a subtype of functional neurologic movement disorders (mFND). Despite extensive investigation into emotional aspects of FVD, cognitive aspects, notably attention, remain underexplored. Consequently, the mechanisms which catalyze predisposing factors into physical symptoms are incompletely understood. This multimodal study investigated whether individuals with FVD demonstrated differences in attentional processing and related physiological processes (i.e., breathing and autonomic regulation) compared to individuals with social anxiety (SA) …

Investigating The Synergistic Effects Of Mental And Physical Exhaustion On Learning And Attention In Emergency First Responders: An Eye-Tracking Study, Kayla Page

Electronic Theses and Dissertations

ABSTRACT

Exhaustion is known to impair cognitive functioning and performance, yet its effects on learning during video-based instruction among first responders and military service members remain underexplored. This study examined how mental, physical, and combined exhaustion independently influence learning outcomes and visual attention in a physically active sample drawn from military, public safety, and emergency service roles. Visual attention was measured utilizing eye tracking, focusing on fixation duration (FD) and fixation rate (FR). Participants completed instructional tasks under each exhaustion condition, allowing comparison of learning and gaze behavior across fatigue states. Results indicated that mental and physical exhaustion were associated …

Quantitative Microstructural Analysis With Applications To Planetary Lithosphere Deformation, Katherine Josephine Billings

Arts & Sciences Graduate Student Theses and Dissertations

On Earth, plate motion is accommodated by localized zones of weakness, comprised of brittle faults near the surface and ductile shear zones at depth. Interactions between microstructure and deformation mechanisms control bulk rock strength. The intermixing of mineral phases and a transition to grain size sensitive creep is thought to be an essential mechanism for creating long lasting weakness in the lithosphere. Chapter Two explores how microstructures evolve in experimentally deformed Maryland diabase. Microstructure evolves significantly with strain from an igneous texture characterized by large grains and large domains to a fine grained, narrowly banded microstructure. This reduction in grain …

Age, Income, And The Discounting Of Delayed And Probabilistic Rewards: The Roles Of Financial Resources And Attribute Salience, Haoran Wan

Arts & Sciences Graduate Student Theses and Dissertations

Many everyday decisions involve outcomes that are both delayed and probabilistic. Although previous research has reported inconsistent age-related effects on discounting, few studies have taken into account the multi-attribute nature of real-world choices or the moderating role of financial resources. Accordingly, the present research examined the interactive effects of age, income, and multi-attribute contexts to test how resource constraints and task dimensionality moderate attribute salience. Across two studies (total N = 600), stratified samples of younger (35-45) and older (62-72) adults with lower (<$60,000) and higher (>$100,000) annual household incomes completed standard and multi-attribute adjusting-amount discounting tasks. In Study 1 (Delay Discounting), …

Development Of A Quantitative Top-Down Proteomics Platform For Arginylated Proteoform Analysis, Richard Myer Searfoss

Arts & Sciences Graduate Student Theses and Dissertations

ABSTRACT OF THE DISSERTATION Development of a Quantitative Top-Down Proteomics Platform for Arginylated Proteoform Analysis by Richard Myer Searfoss Doctor of Philosophy in Biology and Biomedical Sciences Biochemistry, Biophysics, & Structural Biology Washington University in St. Louis, 2026 Professor Benjamin A. Garcia, Chair Top-down proteomics is a technique that utilizes mass spectrometry to identify and quantify biologically relevant proteoforms, or proteins with unique amino acid sequence and post-translational modification (PTM) signature. Challenges that exist in top-down proteomics include localization of PTMs, protein separation, and signal dilution. Here, we developed a top-down proteomics platform on a time-of-flight mass spectrometer that takes …

From Bench To Bedside: Unraveling The Role Of Sarm1 In Chronic Human Neurodegenerative Disease, Caitlin Dingwall

Arts & Sciences Graduate Student Theses and Dissertations

Axon degeneration (AxD) is an early and often causative event in many neurodegenerative diseases, yet no treatments exist to halt the breakdown of axons. In healthy axons, the axon survival factor NMNAT2 inhibits SARM1, the central executioner of programmed axon degeneration. NMNAT2 is a highly labile protein produced in the soma and trafficked into the axon. Nerve injury blocks axonal transport and leads to rapid depletion of axonal NMNAT2, causing NMN buildup and NAD+ loss. Recent breakthroughs led to the discovery that SARM1 is activated by an increase in the NMN to NAD+ ratio. While the SARM1 axon degeneration pathway …

Elected Sheriffs’ Election Process And How It Affects Their Behavior, Brian James Ardoin

Walden Dissertations and Doctoral Studies

Scholars have widely examined how electoral pressures influence the behavior of judges and prosecutors; however, less attention has been given to how elections affect law enforcement leaders. This quantitative study examined whether sheriff election cycles in Louisiana were associated with changes in law enforcement behavior. Louisiana parish sheriffs occupy a unique role as both elected officials and chief law enforcement executives, which may create incentives that influence enforcement priorities. Using secondary arrest data from the Federal Bureau of Investigation Uniform Crime Reporting program, this study analyzed parish-level arrest patterns from 2009 through 2019 to determine whether deputies’ arrest behavior differed …