Digital Commons Network^™

Prognostic Predictors Of Developmental And Functional Outcomes In Children With Global Developmental Delay: A Retrospecive Chart Review, Rachel Lynne Kuechle, Sadie Elizabeth Olson, Eliana Hazel Parks, Hailee Lynn Schauer, Mara Marie Vannyhuis, Audrey Elizabeth Whitman

Physical Therapy Scholarly Projects

Background and Purpose: Global developmental delay (GDD) is a broad, global disorder in which children do not reach the appropriate gross and fine motor milestones as expected for their age. GDD’s impact can extend beyond motor skills to include speech and language development, cognitive abilities, social and personal skills, and ADL’s. This study aims to investigate the prognostic predictors of developmental and functional improvement of children with GDD. Our study also examines how the prognosis of children diagnosed with GDD will be affected based on therapeutic intervention in order to offer evidence-based recommendations to support children with GDD and their …

Establishing The Inter-Rater Reliability Of The Titleist Performance Institute (Tpi) Movement Screen, Ian Henry Dahners, Matthew Fetner, Carlan Haugrud, Hunter Johnson, Braeden Lee Knutson, Erica Jo Peters, Dana Jayde Zarn

Physical Therapy Scholarly Projects

Background: The Titleist Performance Institute (TPI) Movement Screen is a golf-specific physical assessment widely used by professionals to identify physical limitations that may influence swing mechanics and injury risk. Despite its popularity, there is limited peer-reviewed evidence regarding the screen’s inter-rater reliability. Without established reliability, clinical and performance decisions based on TPI scores may be questionable. Prior research on similar tools, such as the Functional Movement Screen (FMS) and Selective Functional Movement Assessment (SFMA), shows that reliability varies based on evaluator experience, scoring objectivity, and standardization—all relevant concerns for the TPI Movement Screen.

Purpose: To determine the inter-rater reliability of …

Normative Data Analysis For The Modified Clinical Test Of Sensory Integration And Balance Protocol With The Biodex Balance System, Crystal Rose Koglin, Ellie Rose Tillma, Tyler Edward Schmit, Madison Faith Bowers, Hannah Janice Ust, Logan Aaron Petznick, Quincie Naomi Floden

Physical Therapy Scholarly Projects

This study was designed to assess postural stability in standing on a Biodex Balance System to gather consistent, accurate data on individuals between the ages of 18-30 years old. This tested the participants' sensory integration (vestibular, visual, somatosensory) and balance which can be examined and treated within physical therapy. This study excluded NCAA athletes as more research has been obtained that includes NCAA athletes. Most of the human population has not been NCAA athletes, so we gathered more data for this greater population of individuals. The data provided gained an understanding of what normative data will look like to other …

Pedagogical Strategies In Medical Laboratory Science Student Learning Outcomes: A Comparative Study Of Learner-Centered And Lecture-Based Instruction, Kasey Kuker

Medical Laboratory Science Independent Study Projects

Learner centered teaching (LCT) has gained prominence across the health sciences, yet its specific impact on Medical Laboratory Science (MLS) education remains underexamined. This comparative literature review synthesizes findings from various empirical studies to evaluate how active, learner centered pedagogies - such as flipped classrooms, blended learning, team based learning, simulation, gamification, and structured feedback - perform relative to traditional lecture based instruction. Across diverse MLS and allied health contexts, LCT consistently improved cognitive outcomes including examination performance, laboratory skill proficiency, and long term retention. Equally significant were gains in affective outcomes: heightened self efficacy, motivation, engagement, teamwork, and professional …

Building Dental Workforce Pathways In A Rural State Without A Dental School, Rashid Ahmad, Shawnda Schroeder

Indigenous Health Posters and Presentations

In North Dakota, workforce shortages are shaped by geography, training pathways, and weak return incentives.

• Statewide Dental Health Professional Shortage Area designation
• No in-state dental school
• Workforce shortages function as a structural driver of inequity • Oral health disparities among children, low-income populations, and Indigenous communities

Towards Continuous Carbon Fibers From Corn Oil, Ismail Akanmu Adebayo

Theses and Dissertations

The global demand for carbon fibers has experienced exponential growth over the last decade, driven by the desire for materials with high strength and low density for applications in aerospace, automotive, wind energy, and specialty industrial markets. Currently, carbon fibers are almost exclusively produced from petroleum-based precursors, most commonly polyacrylonitrile (PAN) and petroleum-derived pitch. The high production costs associated with these fossil-based precursors limit the broader adoption of carbon fibers and represent a significant barrier to market expansion. The development of a bio-based carbon fiber precursor derived from renewable feedstocks would help transition this market away from fossil carbon sources …

Stigma Is Committing: Public Perceptions Of Race, Substance Use, And Civil Commitment, Meliyah Anderson-Tryon

Theses and Dissertations

Civil commitment in the United States is a legal process through which individuals experiencing severe mental illness may be involuntarily admitted for psychological treatment. Despite its far-reaching consequences, public knowledge and perceptions of civil commitment remain largely underexamined. These gaps may contribute to increased stigma toward individuals with severe mental illness or those who engage in substance use. This study used a vignette-based experimental design manipulating a hypothetical individual’s race and presence or absence of past substance use. The hypothetical individual was portraying symptoms related to schizophrenia, subsequently leading to being civilly committed. Participants (N = 208) evaluated perceived dangerousness …

Integrating Emotional Intelligence Into Interpreter Training: A Syllabi Analysis And Curriculum Review Framework, Caroline Lynn Becker

Theses and Dissertations

This qualitative study examines how Interpreter Training Programs (ITPs) incorporate emotionalintelligence (EI) into their curricula. To examine how these competencies are addressed, this study analyzed course syllabi from accredited four-year interpreter education programs using a structured review protocol. Syllabi from Collegiate Commission on Interpreter Education- accredited programs at both public and private institutions were included. Findings indicate that EI is rarely named, explicitly taught, or formally assessed within course descriptions or assignments. While many programs include components aligned with EI domains, such as ethics instruction, supervision, cultural engagement, and reflective practice, these elements are embedded implicitly rather than framed as …

Wifi-Based Teleoperation System For A 3d-Printed Rc Car, Manvel Beaver

Theses and Dissertations

In the field of autonomous vehicle (AV) research, developers often face a significant gap between low-power hobbyist kits and cost-prohibitive industrial platforms. This thesis presents the design, integration, and validation of "Das Mueller," a high-performance, 1/10th-scale unmanned ground vehicle (UGV) designed to provide a transparent and cost-effective testbed for neural network development. By bridging the interoperability gap between the Donkey Car software framework and the 3D-printable Tarmo5 mechanical chassis, this project establishes a modular architecture centered on the NVIDIA Jetson Orin NX single-board computer.

The research utilizes a Model-Based Systems Engineering (MBSE) approach and rapid prototyping to address critical challenges …

Geochemical Modeling Of Co2 Sequestration In Saline Aquifer: Broom Creek Saline Aquifer, Lawrence Chima Asouzu

Theses and Dissertations

Geological carbon sequestration in deep saline aquifers is widely regarded as a critical technology for mitigating anthropogenic CO₂ emissions. This dissertation presents a formation-specific, kinetically constrained reactive transport modelling study of CO₂ storage performance in the Broom Creek Formation, a quartz- and feldspar-dominated saline aquifer in the Williston Basin, North Dakota.

A high-resolution geological model was constructed in Petrel using well logs, well tops, and Sorensen’s permeability correlation, then exported via RESCUE file into CMG GEM for dynamic reactive transport simulation. The base-case scenario involved injection of CO₂ at 15 MMScf/day for one year, followed by 199 years of post-injection …

Safety Assurance In A Collegiate Flight Program With Safety Management Systems (Sms): A Mixed-Methods Approach To Evaluating Safety Risk Control Effectiveness, Erin Dunker

Theses and Dissertations

This study examined safety assurance and the effectiveness of safety risk controls within a collegiate flight training program operating under a Safety Management System (SMS). Using a mixed-methods approach, the research integrated quantitative survey data with organizational safety performance data to evaluate how safety risk controls function across operational domains. A survey instrument, the Collegiate Aviation Safety Risk Control Effectiveness Scale (CASRICES), was developed and validated to measure perceptions of safety risk control effectiveness among respondents using Exploratory Factor Analysis (EFA), Reliability, and Construct Validity Analyses.

The EFA supported a three-factor structure consisting of Pilot Training Risk Controls, Safety Reporting …

Studying The Hidden Heat: A Theoretical Approach To Better Understanding The Thermal Conditions Of The Yellowstone Volcano In Wyoming, Usa, Daniel Burke Brunson

Theses and Dissertations

Using the spatiotemporal record of the 2.1–0 Ma ignimbrite flare-up of the Yellowstone Plateau Volcanic Field (YPVF) as a proxy for batholith formation at depth, this dissertation develops and applies the Finite Difference Heat Flow Simulation (FDHFS) program to model crustal thermal evolution beneath the supervolcano. FDHFS, a modular C++ numerical simulator, solves the transient heat equation incorporating variable thermal conductivity, radiogenic heat production, and directional advection in three-dimensional Cartesian grids. Validation against analytical benchmarks and seafloor-spreading analogs confirms its fidelity for combined conduction-advection processes in heterogeneous crustal settings.

High-resolution volume–time analysis of major ignimbrite pulses (Huckleberry Ridge, Mesa Falls, …

A Comparative Study Of Dsmc Codes For Rarefied Atmospheric Re-Entry Applications, Laina Behrenbrinker

Theses and Dissertations

Hypersonic atmospheric re-entry involves complex rarefied flow phenomena, including thermochemical non-equilibrium and plasma formation, which must be accurately predicted to assess vehicle performance and communication blackout. The Direct Simulation Monte Carlo (DSMC) method is applied to model these effects through code-to-code comparison and rarefied re-entry simulation. DSMC codes SPARTA and Comet are compared with a 2D cylinder test case to evaluate consistency in predicted flowfield quantities. This is followed by 2D and 3D axi-symmetric simulation of the Varda re-entry capsule at 78 km altitude to characterize plasma formation. 2D cylinder results show agreement in translational and rotational temperature and neutral …

Modeling Melt Season Snow And Ice Albedo Based On Calibration With Climatological And Physiographic Data In The Wind River Range, Wyoming, Logan Dietrich

Theses and Dissertations

Glaciers in high mountain regions are the source of critical water supply for a large portion of the global population, providing freshwater for several uses such as agriculture, irrigation, drinking water, energy production, and the economy. Climate change is causing the increased melting of mountain glaciers, and in turn putting constraints on several of the aforementioned uses of freshwater that is sourced from high mountain regions as well as increasing the risk of natural disasters such as mudslides and glacial lake outburst floods. Understanding the factors that influence glacial melt is important when assessing the mass balance of glaciers and …

Modeling Type 2 Diabetes Progression, Hereditary Risk, And Treatment Outcomes: Integrating Prevention, Lifestyle Modifications, And Pharmacological Interventions, Grace Ebunoluwa Fatoyinbo

Theses and Dissertations

Type 2 diabetes (T2D) remains one of the most significant chronic health conditionsworldwide and continues to place pressure on healthcare systems through its long-term complications, treatment costs, and growing prevalence. The progression of T2D is influenced by multiple interacting factors, including hereditary predisposition, lifestyle behavior, treatment access, remission, relapse, and the development of complications. Because of this complexity, mathematical models can provide useful insight into disease dynamics and the possible effects of intervention strategies over time. This study develops a compartmental model for T2D progression using a system of ordinary differential equations. The population is divided into epidemiologically meaningful classes …

Numerical Verification Of A Gpu-Accelerated Particle-In-Cell Code For Low-Temperature Plasma Simulations, Wei Guo

Theses and Dissertations

This thesis presents the numerical verification of Comet, a GPU-accelerated Particle-in-Cell with Monte Carlo Collisions (PIC/MCC) code designed for low-temperature plasma simulations. To ensure efficient deployment across heterogeneous computing architectures, the framework leverages the Kokkos performance-portability layer for high-performance execution. Verification was conducted through a series of hierarchical stages with increasing physical complexity, benchmarking each component of the fundamental PIC/MCC simulation cycle. This structured approach establishes the numerical fidelity of the code's algorithmic building blocks prior to its application in predictive plasma research.

The first stage verifies field interpolation and particle pusher modules against canonical single-particle cases, focusing on ion …

Machine Learning For Laminar Heat Transfer In Supercritical Fluids, Luke Holtshouser

Theses and Dissertations

In the last 10 years machine learning has become increasingly more used in the field of fluid dynamics and heat transfer. However, with this increase in activity, gaps still exist with respect to supercritical fluids and laminar flows, where laminar flow in general seems understudied. For supercritical fluids, there are many peculiar studies that are isolated to unique systems or they are obscure enough to include everything but the kitchen sink. This strategy provides no real insights into how the field can make further progress in the utilization of the technology available, or rather build-upon previous knowledge. For this reason, …

The Primary Care Experiences Of American Indian Patients Diagnosed With Opioid Use Disorder (Oud), Frank Johnson Jr.

Theses and Dissertations

This study utilized descriptive phenomenology to describe the lived experiences of AmericanIndian patients diagnosed with opioid use disorder (OUD), when they visit their primary care provider. The specific aims were to: 1) describe what was beneficial when visiting their provider; 2) describe what was detrimental when visiting their provider; and 3) provide recommendations for improving primary care services. Twelve participants were interviewed and the essence of the phenomenon emerged as “the interaction between the provider and patient”. A model was created. The constituents of the essence were beneficial interactions and detrimental interactions. The major themes that emerged from beneficial interactions …

Self-Talk In Esports: Extending Sport Psychology Frameworks To Digital Competition, Brett Anne Thompson Machamer

Theses and Dissertations

Self-talk is a key mechanism underlying performance, confidence, and emotional regulation, yet its use in esports remains underexplored. This study examined self-talk patterns among esports players, focusing on associations with hours played, self-talk type and valence, and contextual and motivational factors influencing its use. Esports players (N = 102; M = 18.53 hours/week, SD = 13.74) across a range of competitive levels completed an online questionnaire assessing self-talk type, valence, and contextual use. Greater hours played were associated with increased use of strategic self-talk, while self-talk valence was not significantly related to time spent playing. Participants most frequently reported using …

Evaluation Of Geothermal Viability In Partially Abandoned And Dry Oil Wells Within The Red River Formation In Williston Basin For Repurposing Into Enhanced Geothermal Systems, Ajan Meenakshisundaram

Theses and Dissertations

Transitioning toward global decarbonization of energy resources necessitates the development of dispatchable baseload resources that leverage existing infrastructure to minimize environmental footprints and capital expenditures. This research investigates the technical and economic feasibility of repurposing unplugged and dry oil and gas wells within the Red River Formation of the Williston Basin in North Dakota for conversion into Enhanced Geothermal Systems (EGS). While immense geothermal resources exist, they are often rendered uneconomical by high drilling costs and a lack of holistic subsurface understanding at target depths. To bridge these gaps, this interdisciplinary study employs a workflow ranging from experimental physics and …

Flipping The Odds: At-Risk Students’ Perceptions Of The Benefits Of The Flipped Classroom Model In High School Mathematics, Roberto Alonzo Moedano

Theses and Dissertations

High school educators tasked with teaching and learning are often challenged to find ways to keep students engaged and ensure they are learning content. However, the COVID-19 pandemic that the United States experienced from 2020 to 2023 (Northwestern Medicine Staff & Northwestern Medicine, 2025) made educators’ efforts more difficult. This unprecedented time of remote teaching and learning transformed the educational landscape overnight. It removed face-to-face learning and replaced it with virtual classes—neither teachers nor students were prepared for the challenges. This research study examines how a flipped classroom approach has the potential to yield positive results at the high school …

Filling The Gaps: Rural-Remote High School Teachers’ Perceptions Of Professional Training In Student Mental Health Preparedness, Angela N. Muhs

Theses and Dissertations

Rural-remote high school teachers are frequently the first to notice and respond to student mental health concerns, yet they operate within communities characterized by significant shortages in mental health providers. Access to professional mental health services in these settings remains persistently limited, placing considerable responsibility on teachers who may lack adequate preparation. This study employed an interpretive case study design to qualitatively examine how rural-remote high school teachers in North Dakota perceive their professional training and overall preparedness in addressing student mental health concerns. Twelve licensed teachers, whose experience ranged from six months to 33 years, participated in in-depth interviews. …

Comprehensive Analytical Approaches To Biophysical And Hard Matter Systems, Carlos Munoz

Theses and Dissertations

In this work we define the methods and experimental techniques that are used in the synthesis, characterization, and development of biophysical and hard matter systems. These efforts encompass six principal areas: Comprehensive characterization of pathogenic bacteria, development of novel chemical methods for probing binding affinities in cellular systems, understanding the electronic properties of silicon/silicon dioxide interfaces, characterization of catalytic perovskite oxide materials, and lastly, heteroepitaxial growth of vanadium nitride thin films on the silicon nitride surface.The Lyme disease spirochete Borrelia burgdorferi (B. burgdorferi) causes an infection with diverse clinical outcomes, which can include arthritis as well as cardiac and neurological …

A Privacy-Preserving, Ai-Driven Framework For Bathroom Activity Monitoring And Health Recommendation In Elderly Care, Collins Poku Obeng

Theses and Dissertations

The rapid aging of the global population necessitates scalable, non-invasive solutions, for monitoring Activities of Daily Living (ADLs) to detect early signs of health decline. This thesis presents a novel, end-to-end framework for monitoring bathroom activities—specifically bathing, toileting, and oral hygiene—using wearable sensors, machine learning and Agentic Artificial Intelligence (AI). The research addresses three critical gaps: the lack of granular activity recognition in privacy-sensitive spaces, the need for personalized health insights without manual logging, and the cybersecurity risks inherent in deploying AI in healthcare. First, algorithms utilizing wearable humidity and accelerometer sensor data were developed to classify hygiene behaviors with …

Exploring Obstacles To Food Security Across The University Of North Dakota Student Body, Emma Patzer

Theses and Dissertations

Food insecurity (FI) is a public health concern, and college students are especially vulnerable to FI. FI has been correlated with poor academic performance, poor health behaviors, and negative physical/mental health outcomes in college students. This thesis investigates which students are most affected by FI at a major mid-western university, identifies major barriers to food security (FS) among students at the university, and describes how these barriers differ by living location. A cross-sectional survey of students (n=905) enrolled in ≥1 credits in Spring of 2025 was conducted. Unadjusted ORs and multinomial binary logistic regression were used to determine the groups …

Identifying Diet Quality Of Ultra-Processed Foods Among Student Health Professionals, Claudia Julianne Promschmidt

Theses and Dissertations

Disagreement exists in literature and media on definitions and classification ofultra-processed food (UPF) making interpretation for policy makers, consumers, and health professionals confusing. As health professionals have a large role in nutrition education, this study looked at how students enrolled in a health professional program at the University of North Dakota determine nutrient density of UPFs and non-UPFs. Researchers calculated nutrient density to classify foods into a survey. Students completing the survey had access to both the ingredient list and Nutrition Facts Panel before selecting the food as choose often, sometimes, or rarely, and then indicated which tool was used …

Beyond The Manual: Training Troubleshooting Skills Through Augmented Reality, Lawrence Allen Smith Jr.

Theses and Dissertations

Many industrial maintenance departments implement and utilize Augmented Reality Technology (ART) and Augmented Reality Technical Training (ARTT) in their day-to-day operations. This study aims to examine technicians' troubleshooting skills by exploring two main questions: (1) how these skills are impacted by Cognitive Load Theory (CLT), and (2) how they are influenced by using either paper manuals or ARTT manuals. The research will compare the effects of traditional paper manuals and ARTT manuals on the learning outcomes of troubleshooters. The measurements of learning outcomes will include cognitive ability, professional specific knowledge, and skill retention. Keywords: augmented reality (AR), industrial maintenance, augmented …

Ground Penetrating Radar Spiral Antenna Transient Response Based On Target Radar Cross Section, David Rohde

Theses and Dissertations

This dissertation presents a significant advancement in Ground Penetrating Radar (GPR) detection technology through the development of a novel method for the detection and classification of buried conductive objects using custom-designed Archimedean spiral antennas. The research demonstrates that the transient electromagnetic response of an Archimedean spiral antenna is strongly correlated with the Radar Cross Section (RCS) characteristics of buried objects operating within the radar resonance scattering, or Mie, region. By leveraging this relationship, the proposed approach enables not only the detection of buried objects, but also generalized classification based on object geometry and size.A primary contribution of this work is …

Numerical Investigation Of Plume–Surface Interactions Using Automated Adaptive Mesh Refinement, Fahim Shahriyar

Theses and Dissertations

This work presents a numerical investigation of plume–surface interactionsusing the Direct Simulation Monte Carlo (DSMC) method, coupled with the devel opment of an automated adaptive mesh refinement (AMR) framework for rarefied flow simulations. A two-dimensional axisymmetric configuration is used to simulate the impingement of a rarefied exhaust plume on a flat surface under vacuum condi tions representative of experimental test facilities. Surface pressure, shear stress, and heat flux induced by plume impingement are computed and compared with published experimental and numerical results to validate the DSMC approach. To address the strong mesh sensitivity and computational inefficiency associ ated with uniform …

Predicting Diversity Gaps In Clinical Trials Using Digital Twin Modeling, Abigail Tubbs

Theses and Dissertations

Demographic underrepresentation in clinical trials continues to limit the external validity, equity, and generalizability of biomedical evidence. While regulatory reforms have increased the availability of aggregate demographic reporting, most existing approaches assess representation retrospectively, after recruitment has begun, offering limited support for design-stage decision-making. This dissertation presents a digital twin–based framework for prospective assessment of demographic diversity in clinical trials using trial-level metadata. The work integrates three core contributions. First, an open, reproducible, no-code extraction tool was developed to enable bulk retrieval and harmonization of baseline demographic data (race, ethnicity, sex/gender, and age) from ClinicalTrials.gov using National Clinical Trial identifiers. …