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

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 …

An Environmental Systems Engineering Framework For The United States Space Force: Multi-Objective Optimization Of Co2 Emissions And Biodiversity Trade-Offs, Julio Roberto Pinto Covelli

Theses and Dissertations

The increasing demand for sustainable defense operations has prompted the US Space Force to explore advanced strategies that reduce carbon emissions and preserve biodiversity across its installations. This dissertation proposes a scalable systems-engineering framework that quantitatively integrates CO₂ emissions modeling and ecological simulation at RAF Feltwell and RAF Lakenheath, two strategically signi?cant installations with notable ecological value. Using toolsincluding Python, MATLAB, ArcGIS, and InVEST, this research models emissions and habitat quality under various operational scenarios. The study incorporates engineering performance metrics, including emissions intensity, resilience indicators, and energy efficiency rates, to inform trade-off modeling for real-time mission and environmental decision-making. …

Enhancing Geothermal Productivity In The Red River Formation, Williston Basin: Utilization Of Unconventional Stimulation Technology And Sco2 Injection To Improve Geothermal Inlet Temperature, Fluid Flow Rate, And Project Economics, Etochukwu Jude Uzuegbu

Theses and Dissertations

Geothermal energy is a reliable renewable energy source capable of delivering consistent baseload electricity while emitting very low concentrations of greenhouse gases. In very low permeable geothermal reservoir, the geothermal system’s efficiency and economic feasibility are heavily dependent on reservoir productivity, which includes the fluid circulation and heat extraction efficiency. This research assesses the geothermal inlet temperature dynamics, fluid production and techno-economic viability of two reservoir productivity enhancement approaches: Hydraulic Fracturing (Base Case model) and Fishbones stimulation (Proposed Case model) under various operational conditions. The research aims to evaluate the influence of these two approaches on the geothermal inlet temperature, …

Student Engagement As A Predictor Of Stem Student Success, Mosab Shaher Abu Al Foul

Theses and Dissertations

This quantitative study investigates factors influencing engagement, persistence, and degree completion among underrepresented minority (URM) students in science, technology, engineering and math (STEM). Guided by Tinto’s Interactionist Model (1975) and Bandura’s Self-Efficacy Theory(1977), it examines how institutional practices and socioeconomic conditions contribute to inequities in student outcomes. Using a non-experimental, correlational design, the study analyzes National Survey of Student Engagement (NSSE) data and institutional records from a Midwestern Research 2 university (N = 620; URM subsample n = 52). Binary logistic regression, MANOVA, and t-tests were used to assess relationships among High-Impact Educational Practices (HIEPs), engagement indicators, faculty interaction, pre-college …

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 …

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 …

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 …

The Speech, Language, And Feeding Development Of One Child With Wiedemann–Steiner Syndrome, Alyssa Ann Erickson

Theses and Dissertations

This thesis examines the longitudinal speech, language, and feeding development of a child with Wiedemann–Steiner syndrome (WSS) from birth to age 10. The study aimed to characterize developmental patterns, identify strengths and challenges, and evaluate changes over time within the context of ongoing speech-language intervention. A qualitative longitudinal case study design was used, combining retrospective review of medical, therapeutic, and educational records with direct clinical assessment at age 10. Measures included the Oral and Written Language Scales–Second Edition (OWLS-II)), a spontaneous language sample, a phonemic inventory, a Childhood Apraxia of Speech screening, a caregiver feeding questionnaire, and a clinical feeding …

The Motivations Of Adult Piano Students In The Republic Of Korea, Eunsong Kim

Theses and Dissertations

Adult participation in piano study has increased in recent years; however, relatively little research has examined how adult learners initiate and sustain long-term engagement. This qualitative study explored the process through which adult piano students develop and maintain motivation over time and how sustained piano study becomes integrated into their everyday lives. Data was collected through semi-structured interviews with five adult piano students in the Republic of Korea and analyzed using thematic analysis to identify recurring patterns in their experiences. The findings revealed that initial motivation was shaped by childhood musical memories, the search for a personal sanctuary, and the …

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 …

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 …

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 …

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 …

Bridging Culture And Education To Enhance Cherokee Student Health And Wellness, Lindsey Hammer

Theses and Dissertations

Indigenous populations face ongoing health disparities, often worsened by a lack of culturally relevant and Indigenous-led programs and interventions. This dissertation in practice was inspired by the need for community-driven, culturally grounded approaches that address these disparities for Cherokee Nation in Northeastern Oklahoma. Each of the three products are inspired by and aligned with the principles of Community-Based Participatory Research (CBPR), the Cherokee value of gadugi, and the concept of relationality, offering a holistic approach to community health and well-being. Not every product represents a fully implemented CBPR process but rather a CBPR-informed approach. Future stages will emphasize more meaningful …

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 …

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 …

Additively Constructed Concrete Culverts (Acc), Eugene Kwabena Assuah-Damoah

Theses and Dissertations

Rural culvert systems in cold regions like North Dakota face rising replacement needs due to aging infrastructure, harsh deterioration, and limited precast supply. Additive construction with concrete (ACC) offers promise but is constrained by proprietary mix designs, limited validation for non-linear geometries such as ring-type pipes, and challenges in reinforcement integration. This study addresses these gaps through three efforts. First, a non-proprietary mix (MIX7, w/c = 0.37) using local materials achieved optimal printability (190–200 mm flow) and 28‑day strengths of 55–60 MPa; full-scale 18‑inch pipes met ASTM C76 Class II/III requirements. Second, literature shows ACC permanent formwork performance depends on …

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, …

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 …

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 …

Critical Minerals Recovery From Oil And Gas Fields Produced Water In The Bakken Formation, North Dakota, Md Jakaria

Theses and Dissertations

The growing demand for critical minerals essential to clean energy technologies presents an opportunity to transform oilfield produced water (PW) – traditionally treated as waste – into a valuable resource. This dissertation investigates the recovery potential of lithium, salts, and other critical elements from produced water in the Bakken Formation, North Dakota, and evaluates the economic feasibility of integrating such recovery processes into existing petroleum operations. Comprehensive geochemical analyses were conducted on samples collected throughout the Bakken, revealing total dissolved solids (TDS) ranging from 46,815 to 327,714 ppm and lithium concentrations exceeding 200 ppm in several wells, indicating economically recoverable …

Redox-Driven Wettability In Underground Hydrogen Storage: Linking Geochemical Speciation, Surface Charge, And Contact Angle, Ijaz Khan

Theses and Dissertations

Underground hydrogen storage (UHS) depends on complex interactions among reservoir rocks, brine, and gas under redox conditions induced by H2 injection. Although wettability is often treated as a static parameter, redox reactions can shift pH, aqueous speciation, and mineral surface charge, thereby altering contact angles and, consequently, injectivity, trapping, and recovery. This work tests the hypothesis that dominant redox pathways in saline aquifers and depleted reservoirs, specifically Fe(III) and sulfate reduction, systematically modify mineral surface stability and charge, producing predictable shifts in wettability. To address this, we developed a physics-guided machine learning workflow that integrates mechanistic geochemical understanding with empirical …

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. …

Spirituality And Well-Being Among Native College Students, Emma Reese Smith

Theses and Dissertations

In the current literature surrounding spirituality, definitions and conceptualizations of the construct differ. Researchers have proposed common themes of spirituality–self-awareness, interconnectedness to the world, and a relationship to a higher power or greater purpose (Hamilton & Jackson, 1998). While definitions of spirituality and how it is operationalized vary across studies, the current view in the field is that spirituality has positive outcomes on those who practice it, including their overall degree of well-being. While these positive effects have been showcased in the literature, due to the influence of western Christian perspectives on many measures of spirituality, there are methodological issues …