Digital Commons Network^™

Exploring The Experiences Of First-Year Pre-Nursing Students’ Sense Of Belonging In A Living-Learning Community And First-Year Seminar, Robyn Bancroft

Theses and Dissertations

Many factors may influence how a student experiences their first year adjusting to college life. The University of North Dakota, a public research institution located in Grand Forks, ND, recently implemented a nursing living-learning community (LLC) comprised of first-year, pre-nursing students, which also required the students to take a one-credit first-year seminar (FYS) together, known as UNIV 101 – Introduction to University Life. A total of 10 participants who resided within this living-learning community for a minimum of one academic year and were enrolled in the same section of UNIV 101 during their first semester submitted reflection papers. Additionally, eight …

Precipitation Forecast And Verification For Suas Applications, Patrick Britt

Theses and Dissertations

Small Unmanned Aerial Systems (sUAS) have become a fast-growing part of air traffic in the United States. This significant growth is due to the numerous uses these systems can provide, both recreationally and professionally. Due to the small nature of the sUAS, any weather, regardless of intensity, plays a vital role in flight operations and planning. In a survey of sUAS pilots, it was found that precipitation was the most significant hazard of concern, and the most time-sensitive hazard, as precipitation conditions are most often checked by operators in the immediate moments before flight. This project aimed to create, analyze, …

Hillslope Degradation: Coarse Sands May Move Faster But Fines Dominate Flux, Robert Chance

Theses and Dissertations

Hillslopes are one of the most pervasive landforms on Earth yet the details of the processes that drive their evolution are not completely understood. Excluding boulders, the majority of mass and volume in soil-mantled hillslopes is composed of sand-sized and finer grains. Understanding the transport rates and governing transport mechanisms of these grains is therefore key to advancing our knowledge of hillslope evolution.This research investigates sand-sized sediment transport through field experiments at 20 sites tracking surface sediment motion and 11 sites measuring depth-dependent transport. These empirical results are compared against outputs from a novel grain-based hillslope diffusion simulation (GBHDS), which …

Design And Fabrication Of Tpms-Based Bone Scaffolds: A Cost-Effective Approach Using Plga-Nha And 3d-Printed Pva Molds, Yasser Ahmed

Theses and Dissertations

This thesis introduces a new cost-effective method for fabricating bone scaffolds from triply periodic minimal surface (TPMS) geometries—namely Gyroid and Diamond structure—using a poly(lactic-co-glycolic acid)-nanohydroxyapatite (PLGA-nHA) composite and 3D-printed polyvinyl alcohol (PVA) molds. Current TPMS scaffold fabrication techniques depend on costly laser-based techniques like selective laser sintering and thus remain inaccessible. Herein, we reveal a cost-effective and repeatable indirect approach via fused deposition modeling (FDM) for printing water-soluble PVA molds, which are then iteratively cast filled with a PLGA-nHA solution. The protocol was optimized through concentration modulation and controlled evaporation of the solvent for optimum infiltration and uniformity in the …

Laboratory Application Of An Aircraft Particle Imaging Probe To Characterize Levitated Ice Crystals And Their Aerodynamic Drag, Cheyenne Phoenix Harrison

Theses and Dissertations

Ice crystals in the upper atmosphere range in size from a few nanometers to a few millimeters, creating potential damage to vehicles traveling at hypersonic speeds; this problem has not yet been investigated with controlled laboratory techniques. This thesis investigates ice crystal impacts on high-speed flight vehicles and their aerodynamics by exploring a new method to combine ice crystal and shock wave experimental apparatuses to achieve experiments of observing ice crystals and shock waves interacting. The objectives of this research are: (1) to consistently produce levitated ice crystals in a setup that can feasibly release the ice crystals into a …

Assessment Of Medical Laboratory Science Student Motivation And Perceived Transfer Of Knowledge Towards Information Literacy, Shannon Jongeward

Theses and Dissertations

Information literacy skills are a cornerstone of higher education as they allow students to effectively locate, evaluate, and utilize information from various sources. Evidence-Based Practice, a process commonly used in healthcare for decision making, incorporates using the best available research, one’s clinical expertise, and the patient’s values. Information literacy is foundational to developing evidence-based practice skills. Medical Laboratory Scientists (MLS) utilize evidence-based practice to assist in making decisions about clinical laboratory tests and processes to ensure quality in testing and the appropriate use of resources; therefore, it is important for MLS programs to include elements of evidence-based practice into their …

Energy Systems Optimization Techniques In The Oil And Gas Industry With Special Attention On Oil Field Reciprocating Compressors, Sean Jainarine

Theses and Dissertations

The oil and natural gas exploration and production industry is undergoing rapid growth, resulting in an increased number of operational wells and heightened potential for air emissions from oil and natural gas sources. Within production sites, compressors play a pivotal role and are often regarded as the "heart of a manufacturing plant" in the oil and gas sector. These crucial devices are designed to compress air or other gases to pressures higher than atmospheric pressure. Gas compression is typically achieved using devices with rotating blades or cylinders featuring reciprocating compressors while are essential for operations demanding high-pressures in small packages. …

Doctoral Student Mentoring: A Quantitative Analysis Of Faculty And Student Perceptions And Expectations, Laura Margaret Look

Theses and Dissertations

Doctoral student success is heavily influenced by the quality of mentoring and advising relationships with graduate faculty, yet doctoral student completion rates remain at a low rate of around 50%. The purpose of this quantitative study was to examine the mentoring relationships of doctoral students by surveying doctoral students and graduate faculty who mentor graduate students to identify their expectations for the mentor and mentee in the mentoring relationship. Data were collected from 155 students and 68 faculty in the spring 2024 semester at the University of North Dakota, a Midwest R2 institution. Nonparametric statistical analysis revealed several misalignments between …

Impact Of Resin Grinding On Per- And Polyfluoroalkyl Substance Adsorption In Rapid Small-Scale Column Tests, Tihitna Gezahegn Mulugeta

Theses and Dissertations

Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants with significant health risks. Among the different technologies for PFAS removal, adsorption is preferable due to low-cost, operational simplicity, and use of regenerable adsorbents. While pilot-scale fixed-bed columns are ideal for evaluating adsorption media, they are time- and resource-intensive. Rapid Small-Scale Column Tests (RSSCTs) offer a practical alternative, yet most studies have focused on granular activated carbon, with limited insight into ion exchange (IX) resins. Due to limited literature on the effect resin preparation on the performance of RSSCTs and their prediction accuracies are unexplored. This study investigates the effect of …

Homeschooling And Online Learning Technologies From A Parent’S Perspective, Karla M. Forti

Theses and Dissertations

The purpose of this quantitative, predictive correlational research study was to examine the relationship between homeschooling parents’ use of educational technology tools and their instructional behaviors and perceptions, with additional consideration of virtual school participation. Survey-based data from 22 parents of over 40 homeschooled children were used to examine technology adoption and instructional preferences across non-traditional learning settings. The study addressed four research questions through descriptive statistics and correlational analysis, while quantitative themes from open-ended responses enriched the findings. Results provided insight into parental motivations and trends influencing homeschooling and virtual school choices, highlighting the expanding role of online learning …

Foster Care Placement And Law Enforcement Contact, Tranika Guerrero De Los Reyes

Theses and Dissertations

Interaction with law enforcement and delinquency are higher among youth in foster care, and they are likely to experience higher incarceration rates and be involved in criminality, which limits their access to education and employment. The problem addressed in this study was the elevated risk of law enforcement contact outcome (LEO) among adolescents and young adults with a history of foster care placement. The purpose of this quantitative research was to investigate differences in the number of LEO contacts and LEO arrests based on foster care placement type among youth in California’s foster care system.

Guided by the social control …

Student Participation In Informal Resolution: Examination Of Impact Factors On Recidivism And Student Perceptions Of Institutional Care And Fairness, Linnea Rose Nelson

Theses and Dissertations

This exploratory case study, conducted at the University of North Dakota (UND), examined factors influencing recidivism and student perceptions of institutional care and fairness among participants in the piloted Informal Resolution (IR) option. A restorative justice (RJ)-informed alternative to the traditional student conduct process, the IR is offered to students charged with first-time, low-level violations of UND’s code of conduct. This study aimed not only to evaluate the new process but also to respond to recent calls from scholars and practitioners for more extensive research on the intersection of RJ and student conduct outcomes. Sherman’s (1993) defiance theory provided the …

Chemical Looping As An Enabling Technology For Low-Carbon Energy Production, Junior Neguieh Domkam Nasah

Theses and Dissertations

Growth in global gross domestic product has historically been tied with high-carbon energy sources. Development of new low-carbon energy technologies is thus key to achieving a de-coupling of energy demand from economic growth. This dissertation evaluates the technical feasibility of a small-scale low-carbon solution referred to as Combined Hydrogen, Heat and Power (CH2P), a synthesis gas to hydrogen chemical looping process. The CH2P process is based on the steam-iron process and adopts multiple batch reactors to convert syngas in a two-step approach. First, the syngas is partially oxidized by reducing Magnetite (Fe3O4) to Wüstite (FeO) followed by complete oxidation in …

From Theory To Practice: Addressing The Operational Challenges Of School Principals, Darin Murry Scherr

Theses and Dissertations

School principals play a crucial role in the effectiveness of educational institutions, yet many enter leadership positions lacking adequate preparation for operational responsibilities. This Dissertation in Practice examines the challenges principals face in managing financial, staffing, and facility operations and the impact of these challenges on principal retention. Using a qualitative multiple-case study approach, the research investigates the experiences of new and veteran principals within Bismarck Public Schools to identify gaps in their operational preparedness.Findings highlight five key themes: (1) gaps in financial and budgetary training, (2) the role of mentorship and support systems, (3) balancing instructional leadership with operational …

Synthesis And Characterization Of Silicon-Containing Ternary Transition Metal Borides For High Performance Applications, Godswill Ngige

Theses and Dissertations

Binary borides are well known for their exceptional mechanical and thermal properties, including high strength, high melting points, outstanding hardness, and excellent chemical stability, making them suitable for high-temperature structural applications such as components in hypersonic vehicles, jet engines, nose cones, and the leading edges of aircraft. Despite these advantages, they are inherently brittle and suffer from low fracture toughness, limiting their ability to absorb impact or resist crack propagation.

To this end, attention shifted to ternary transition metal borides which are materials composed of a transition metal, boron, and a third element. These ternary compounds exhibit a broader range …

Which University Faculty Are Successful Researchers? Developing And Testing Measures Of Research Competence To Predict Faculty Research Motivation And Success, Muhammad Salahuddin

Theses and Dissertations

University faculty play a pivotal role in producing research that leads to positive social change through the creation of new knowledge, enhancement of higher education quality, and improved university rankings. Faculty produce more when they feel competent, autonomously motivated, and acknowledged. Past studies have measured faculty research competencies using self-report scales that may contain biases, potentially leading to significant discrepancies in research outcomes. My program of research – a three-article dissertation – aimed to develop and validate the test-based measures of faculty research competence that can more reliably predict faculty research success. The three studies provide an enhanced understanding of …

Ecological Dynamics In Beaver-Engineered Boreal Wetlands: Amphibian Phenology, Occupancy, And Aquatic Macroinvertebrate Communities, Talon Stammen

Theses and Dissertations

Boreal wetlands are ecologically rich yet vulnerable ecosystems shaped by hydrological dynamics, cold climate regimes, and landscape-scale disturbances. Among the most influential agents of change in these systems are beavers (Castor canadensis), whose engineering activities create a mosaic of lentic habitats at varying stages of ecological succession. This dissertation investigates the structure and dynamics of amphibian and aquatic macroinvertebrate communities across a beaver-influenced wetland landscape in Voyageurs National Park, Minnesota, USA.The first study (Chapter II) examines breeding phenology and detection patterns of boreal anurans using a combination of passive acoustic monitoring and visual encounter surveys at 25 wetlands over four …

Synthesis And Characterization Of Additive Manufactured Functional Composites For Biomedical Applications, Alexander Thorne

Theses and Dissertations

This dissertation investigates the synthesis and characterization of 3D printed polymer composites, with engineered porosity and both natural and synthetic additives, using fused deposition modeling (FDM) and selective laser sintering (SLS) for potential biomedical applications. The structural, mechanical, tribological, and surface behavior of these composites were evaluated with respect to their suitability for orthopedic load-bearing implants and scaffolds. In the first phase, PEEK-based composites reinforced with 10 or 20 wt% carbon fibers or 20 wt% E-glass fibers were fabricated using FDM with varying infill densities of 30-100% to introduce porosity. Results revealed that loading additives, infill densities, and porosity play …

Advancing Human-Computer Interaction Systems Through Explainable And Secure Ai Integration, Ifiok Udoidiok

Theses and Dissertations

As artificial intelligence (AI) systems increasingly shape how humans interact with digital environments, the need for transparency, security, and robustness in intelligent decision making has become critical. This thesis explores how explainable and secure AI techniques can be integrated into modern human-computer interaction (HCI) systems to enhance trust, resilience, and alignment with human operators.

We present three related studies, each addressing a distinct challenge in the design of human-centered AI. First, we apply XAI methods, specifically Local Interpretable Model-Agnostic Explanations (LIME), to deep learning (DL) based CAPTCHA solvers. By interpreting model attention patterns, we uncover exploitable weaknesses in text CAPTCHA …

Targeted Coaching In The Detroit Promise Path: A Thematic Network Analysis Of Current Challenges And Opportunities For Student Success, Maryse Danielle Wilson

Theses and Dissertations

The Detroit Promise Program is one of the many college promise programs operating within the United States that offers full college tuition coverage to students within the city who meet certain residential criteria. Detroit’s population has one of the highest proportions of Black and first-generation students and the lowest average socioeconomic class in the country. From the time of the Promise Program’s launch until now it has seen minor improvements in college degree competition rates, but this rate is still low compared to the national average. The Detroit Promise Path, which is an off branch of the Detroit Promise Program, …

Zaasijiwan: An Indigenized Health Communication Framework For American Indian And Alaska Native Communities, Jennifer Wolf

Theses and Dissertations

The Zaasijiwan Framework represents an Indigenized health communication model developed to enhance the cultural relevance, trust, and effectiveness of public health messaging for American Indian and Alaska Native (AI/AN) communities. This qualitative study integrated Indigenous and Western public health knowledge to inform the development of the framework. A comprehensive literature review and two rounds of key informant interviews with health communication professionals informed the design of the framework. Findings emphasized the importance of community co-creation and strengths-based narratives, along with other framework elements, in overcoming medical mistrust and improving health outcomes. The final framework offers public health professionals, Tribal, and …

Human Factors Matter: The Intersection Of Cybersecurity Governance, And Culture In Risk Management Of Critical Infrastructure, Prince Abubakari

Theses and Dissertations

In the 21st century, cybersecurity threats have evolved into pressing socio-technical issues, with significant implications for the safety and stability of global critical infrastructure. This dissertation explores the intersection of cybersecurity governance and culture in risk management of national critical infrastructures, defined as essential systems and assets, whether physical or virtual, that are vital to the security, public health, safety, economy, or any combination thereof, and the disruption of which would have a debilitating impact on a nation. The study delves into how human factors like organizational culture and governance mechanisms interplay to influence cybersecurity outcomes. The research adopts a …

Exploring The Perception And Experiences Of California Female Superintendents, Stacey Ridgeway

Theses and Dissertations

When examining the modern-day gender distribution of the American K-12 public school district superintendent role, women remain underrepresented at 26.7% (Tienken, 2021). Based on the model of superintendents ascending from the teacher and principal workforce, the educational pipeline is robust, with 77% female teachers and 56% female principals (Irwin et al., 2023; National Center for Education Statistics, 2023). Factors preventing a higher percentage of female teachers from attaining the superintendency are unknown, and there is a need for a better understanding of the barriers female educators face as aspiring superintendents. California is second in the U.S. for female superintendent representation, …

Charisma And Impulsivity In The Venture Pitch Persuasion Process, Shilena D. Battan

Theses and Dissertations

Entrepreneurs depend on persuasive pitching to secure venture capital (VC) funding, yet the roles of charisma and investor impulsiveness in shaping those decisions remain underexplored. This dissertation addresses the gap by examining how entrepreneurial charisma and investor impulsiveness influence persuasion outcomes during the pitch process. Two pilot studies and two main experiments tested these dynamics. In Study 1, a trained actor delivered a pre-scripted pitch in high and low charisma formats. In Study 2, extended the investigation by adapting the pitch text into AI-generated text, offering a comparison between human and AI-authored pitches. Results from both studies revealed a mix …

From Intent To Invent: An Exploration Of The Entrepreneurial Learning Strategies Of Entrepreneurially-Intentioned Individuals When Navigating Social Media As An Informal Learning Environment, Joshua Lyndon Gray

Theses and Dissertations

The journey from entrepreneurial intention to entrepreneurial invention involves various considerations for individuals with an intention to start a business in the next 3 years. While some individuals with entrepreneurial intentions pursue higher education prior to starting a business, some start businesses without graduating from a degree program—prompting an exploration of various entrepreneurial learning options. This study uncovered the learning strategies employed by individuals with entrepreneurial intentions when navigating informal learning environments, particularly social media, through a phenomenological qualitative approach. The study explored the phenomenon of entrepreneurial learning experiences through investigating the use of social media platforms as informal learning …

Strategic Military Readiness: Navigating Knowledge Management In The United States Army, Blaine Andra White

Theses and Dissertations

This was a qualitative phenomenological study of knowledge management (KM) in the U.S. Army. The study explored the KM phenomenon by interviewing retired highly experienced field-grade Army commissioned and non-commissioned officers (NCOs), with varying backgrounds in combat, combat support, and combat service support branches. The research sought to address the problem of a discernable gap in the understanding among Army leaders regarding the effective utilization of KM staff for their units to employ the KM process effectively. This study's two central research questions (RQ) were RQ1: What targeted strategies can be developed for Army leaders and their subordinate units to …

R&D Efficiency Of Drug Development At Universities, John Aylworth

Theses and Dissertations

Research and development (R&D) efficiency in the pharmaceutical industry is a measure of the relative value of new and novel products cast against the costs required to make them. For six decades, the R&D efficiency of large pharmaceutical companies has declined to critical levels. Most recently, nearly half of the companies studied were experiencing negative R&D efficiency, or products whose costs to bring to market outweigh the value they offer both commercially as well as to the health and well-being of society (Schuhmacher et al., 2023). One of the most prominent consequences of the inefficiencies plaguing the drug development industry …

Exploring Adaptive University President Narratives To Generate Growth And Sustainability, Ryan Charles Weber

Theses and Dissertations

This mixed-methods study explores how university presidents leverage adaptive leadership principles and learning organization frameworks to generate institutional growth and sustainability in higher education. Through analysis of presidential narratives, the research examines the intersection of Heifetz et al.’s (2009) adaptive leadership theory and Senge’s (2006) five disciplines of learning organizations, revealing patterns in leadership communication that drive change. The study analyzed narratives from eight university presidents who demonstrated success through their institutions’ minimum 30% endowment growth over five years. Using thematic analysis and frequency counts, the research identified 198 references to learning organization disciplines, 90 adaptive leadership phases, and 100 …

Analysis Of Dual Roles: Work-Life Balance Experiences Of Female Professors And Mothers In California, Lu Liang

Theses and Dissertations

The study aims to discover and understand the work-life balance experience of mothers who are also professors working in higher education institutions in California. The research reveals the unique challenges, needs, and motivations to manage work and family responsibilities. The literature review indicates that mother professors encounter conflicts of roles and responsibilities from academic work and domestic duties. Moreover, mother professors experience persistent gender disparity and systemic barriers as an underrepresented group in academia, hindering their personal and professional advancements. This qualitative study utilizes quantitative ethnography (QE), an incorporated research methodology to examine mother professors’ work-life balance experience. Additionally, the …

Navigating Leadership As A Black Woman In The United States Space Industry: An Exploration, Rogena Thurber

Theses and Dissertations

This phenomenological study explored the ontological perspectives and leadership experiences of Black women in the U.S. space industry, employing an intersectionality conceptual framework. The research aimed to understand how Black women navigated their paths to leadership at the intersection of gender and race within Predominantly White Institutions (PWIs) in the U.S. Space Industry (USSI).

Following a pilot phase to refine the research approach, eight one-hour, one-on-one interviews were conducted with Black women leaders from seven major USSI organizations in Southern California (LibGuides, n.d.). The study probed participants' leadership approaches, educational backgrounds, access to opportunities, and professional development experiences.

Emotional Intelligence …