Digital Commons Network^™

Investigation Of Surfactant-Enhanced Oil Recovery In High Salinity And High Temperature (Hsht) Reservoir Conditions: A Case Study In The Bakken Formation, Tomiwa Isaac Oguntade

Theses and Dissertations

This study investigates improved strategies for enhancing oil recovery (EOR) in challenging reservoir conditions by combining chemical surfactant flooding and data-driven optimization techniques. Given rising global energy demand and the depletion of conventional oil reserves, chemical EOR methods, particularly surfactant flooding, are gaining popularity for their ability to mobilize residual oil via mechanisms such as reducing interfacial tension, altering wettability, and inhibiting asphaltene formation. The research begins by examining the effectiveness of surfactant applications across various reservoir conditions, emphasizing the need for surfactants capable of withstanding challenging environments characterized by high temperatures, high salinity, and low permeability. Laboratory experiments demonstrated …

Nutrition Implications In Hypermobile Ehlers-Danlos Syndrome (Heds)/Hypermobility Spectrum Disorder (Hsd), Lauren Steiner

Theses and Dissertations

Hypermobile Ehlers-Danlos syndrome (hEDS) and hypermobility spectrum disorders (HSD) are a poorly recognized and under researched group of genetic connective tissue disorders that have widespread impacts on the human body, including gastrointestinal (GI) symptoms. The role of dietary and supplemental interventions in GI symptom control in this patient population has not been researched. This study used an exploratory survey to collect data on diets and supplements that the patient population has used to combat GI symptoms. The low histamine, gluten free, dairy free, anti-inflammatory, and intermittent fasting diets, as well as magnesium, probiotic, coenzyme Q10, vitamin C, vitamin B12, and …

Public Perceptions Of Fracking And Anti-Fracking Activism: A Theory Of Planned Behavior Approach And Its Implications For Environmental Policy, Okhumode Hector Yakubu

Theses and Dissertations

Hydraulic fracturing, or fracking, has become one of the most contentious energy technologies of the 21st century, drawing support for its economic and energy security benefits and opposition due to its perceived environmental and health risks. This study applies the Theory of Planned Behavior (TPB) to examine the psychological, social, and informational factors that shape public perceptions of fracking and motivate anti-fracking activism. Using a nationally representative sample of U.S. adults (N = 522), this research investigates how attitudes, subjective norms, perceived behavioral control, and domain-specific knowledge predict support or opposition to fracking, as well as intentions to engage in …

Congolese Refugee Narratives Of Belonging, Grief, And Cultural Continuity In Appalachia, Kayla Davis

Theses and Dissertations

This research examines the communicative challenges that Congolese refugees face after resettlement, particularly as they strive to reconstruct a sense of belonging in the United States that reflects their experiences in either their home country or secondary countries where they endured protracted displacement in refugee camps. Narrative qualitative research methods were used to conduct interviews with five Congolese refugees in Appalachia. Through qualitative thematic and lexical analysis derived from the interviews, the study reveals patterns of linguistic isolation, community continuity, and emotional displacement. A key finding is that participants often conceptualize community not as a geographic entity, but as an …

Characterization Of Methylated Histone Modifications During Simian Virus 40 Early Transcription, Jacob Otto Haugen

Theses and Dissertations

Modifications of histone proteins play an important role in transcription. These modifications regulate how chromatin is compacted by the histone proteins and either made available for transcription or prevents transcription machinery from proceeding. The modifications can be added or removed by histone acetyltransferases and histone methyltransferases for the former, and histone deacetylates and demethylases for the latter. To explore the dynamicity of these modifications we used the simple but effective Simian Virus 40 (SV40) model. SV40 continues to be an important tool in understanding eukaryotic transcription. It experiences similar processes as cellular chromatin, utilizing host proteins to propagate its own …

Journey To Understanding — An Introduction To North Dakota Tribes (2025), Cheryl Ann Kary Née Red Eagle, Sunshine Archambault-Carlow, Emma Jean Blue Earth, Carol Davis, Linda Gourneau, Oliver Gourd, Eugene Hale, David Henderson, Marilyn Hudson, Angeline Fourth Iron Road, Demus Mcdonald, Jt Shining One Side, Scott Simpson, Sharla Steever, Nicholas Asbury, Sashay Schettler, Lucy Fredericks, Native American Training Institute, United Tribes Technical College

North Dakota Tribal History and Culture Series

Journey to Understanding: An Introduction to North Dakota Tribes is an introductory booklet intended to give a quick overview of Indigenous culture in North Dakota. It is a starting point for the rest of the North Dakota Tribal History & Culture series. The booklet explains the names and backgrounds of the nations that share geography with North Dakota. It also teaches basic cultural competency to facilitate interaction for people from a different background. The content is presented in the form of self-quizzes with provided answers. Journey to Understanding was originally used within the North Dakota Department of Human Services (NDDHS) …

Facilitating Engagement In Meaningful Occupations Through Nature-Based Experiences, Sydney Johnson

Occupational Therapy Capstones

Background: Many children, especially those living in urban areas, are spending less time in nature than ever before which is decreasing their engagement in meaningful occupations such as sleep, play, education, social participation, and activities of daily living. Interacting with nature can improve children’s emotional regulation, development, attention span, mental health, and overall well-being. It is important that children have access to nature and its benefits to ensure they are reaching their full potential in life. One method to improve children’s access to nature is providing them with nature-based activities that can be modified or adapted for those living in …

Eco-Friendly Synthesis Of Anemonin From 5-Hydroxymethylfurfural, A Biomass-Derived Starting Material, Diane Zefack Tangmi

Theses and Dissertations

Anemonin, a valuable cyclobutane containing dilactone is a bioactive natural product from Ranunculaceae plants. It holds great potential for applications in pharmaceuticals and materials science. However, traditional synthesis methods are hampered by low yields, toxic reagents, and environmental concerns, limiting its practical use. This study highlights the development of green and scalable synthetic strategies designed to achieve high yields while minimizing environmental impact. Our approach focuses on sustainable methodologies, including optimized steam and fractional distillation performed under mild conditions to reduce waste and energy demands. Protoanemonin’s natural ability to dimerize under mild heating offers a green approach to anemonin synthesis, …

Genetic Epidemiology Of Chronic Wasting Disease And Epizootic Hemorrhagic Disease In North Dakota Deer, Ethan S. Baker

Theses and Dissertations

Wildlife diseases have become a critical factor in the management of animal populations across the globe. Such diseases can compromise individual health, reduce population sizes, and disrupt ecosystem biodiversity. As a result, there can be a loss in recreational opportunities which, in turn, can cause economic losses for communities relying on these populations. Effective wildlife disease management not only requires the ability to respond to outbreaks but also the capacity to predict how diseases interact with populations and ecosystems. Due to the complexity of disease dynamics, a multidisciplinary approach is essential for gaining a comprehensive understanding of these systems. In …

Strengthening Traffic Safety Laws On The Crow Indian Reservation, Darcy Merchant

Theses and Dissertations

The Crow Indian reservation is located in south-central Montana. The reservation is one of the largest land-based tribes in Montana, encompassing an area of over three thousand square miles. The reservation borders the state of Wyoming to the south and the Northern Cheyenne Indian reservation to the east. The reservation features a comprehensive transportation system that encompasses tribal, county, state, and federal roadways. Drivers and passengers who travel on these roadways are at higher risk for fatal and severe injury-related motor vehicle crashes than those in other reservations. This situation largely stems from the critical absence of targeted traffic safety …

Why Can't We Just Be: Native American College Student Sense Of Belonging At The University Of North Dakota, Gavin Michael Nadeau

Theses and Dissertations

Sense of belonging is a primary indicator of retention and persistence to graduation forNative American college students. Though more than doubling in the past 30 years, Native American college student enrollment has decreased since 2010 (197,000 in 2010 to 107,000 in 2021) (PNPI, 2021; NCES, n.d.). In 2020, Native American students’ 2nd year retention rate was more than 20% lower than their white peers at the University of North Dakota (UND, 2020). When college students of color feel like they belong, they are more likely to retain, persist, and graduate (Mowreader, 2024; Hurtado & Carter, 1997; Hurtado et al., 1999). …

Investigating The Role Of Keratin 6 And Sox2 In Regulating Growth, Stemness, Basal/Squamous Expression, And Chemotherapy Response In Muscle-Invasive Urothelial Carcinoma, Nelofar Nargis

Theses and Dissertations

Urothelial carcinoma (UC) is a prevalent and aggressive malignancy arising in urothelial cells, with arsenic exposure recognized as a significant environmental risk factor. It is categorized into two primary subtypes based on the extent of cancer progression beyond the bladder’s muscle wall: non-muscle-invasive urothelial carcinoma (NMIUC) and muscle-invasive urothelial carcinoma (MIUC). While NMIUC is associated with a relatively favorable prognosis, progression to MIUC is more aggressive and leads to significantly worse outcomes, including poor treatment response and increased metastasis. Squamous differentiation (SD) in UC is an emerging hallmark of aggressive UC, with patients often having poor prognoses and developing chemoresistance, …

The Wicked Problem Of Moral Distress: Exploring The Experiences Of Rural Clinic Nurses, Sydney Rae Johnson

Theses and Dissertations

Background: Moral distress is an occupational hazard for nurses that can negatively impact nurses, patients, and the healthcare system. Moral distress has been well documented in high-risk care environments. Each nursing care environment has its own unique triggers for moral distress, but these triggers are unknown in rural clinic nurses. Design and Purpose: This convergent mixed methods study sought to gain a broader understanding of moral distress in nurses working in rural clinic settings.

Methods: Convergent mixed methodology was used to gain a broader understanding of moral distress in nurses working in rural clinic settings. Following ethical approvals, informed by …

Evaluating The Engineering Properties Of Waste-Modified Asphalt Binders And Mixtures As Inputs For The Mechanistic-Empirical Pavement Design, Duncan Rioba Oteki

Theses and Dissertations

Pavements are essential for economic development and mobility, with asphalt dominating the US road network due to its cost-effectiveness, ease of maintenance, and recyclability. However, the environmental impacts of asphalt production and the depletion of virgin materials have driven the integration of waste products into asphalt mixtures to improve sustainability. This study evaluated the engineering properties of waste-modified asphalt binders and mixtures as performance-based inputs for the Mechanistic-Empirical Pavement Design Guide (MEPDG). The rutting performance of ten asphalt mixtures commonly used in North Dakota was assessed using mechanistic and empirical tests. Mechanistic tests included the dynamic modulus (|E*|), Flow Number …

The Weapon Focus Effect On Memory For Male And Female Perpetrators, Faith Christel Aasen

Theses and Dissertations

Previous research on the weapon focus effect suggests that weapon presence causes reduced memory accuracy for perpetrator details due to weapons being surprising and unexpected. The unusualness hypothesis suggests that a stronger weapon focus effect should occur when the perpetrator defies typical gender stereotypes, such as a woman holding a gun. The current study sought to examine how the weapon focus effect impacts eyewitness memory for male and female perpetrators, specifically exploring the magnitude of the effect on female perpetrators. The current study further investigated whether the own gender bias attenuates the weapon focus effect on memory for female perpetrators. …

An Explainable Ai Framework For Detecting Harmful Algal Blooms (Habs) In Freshwater Lakes, Meera Gopinath Sujatha

Theses and Dissertations

The increase in economic impacts due to the rapid growth of harmful algal blooms (HABs) in freshwater lakes has prompted the development of monitoring and prediction systems. However, limited target data hinders reliable predictions on HAB formations. To address this limitation, this dissertation focuses on providing solutions through data-driven,interpretable, and explainable machine learning models. In Chapter 3, an interpretable multivariate regression model such as Vector Autoregressive (VAR) was used to analyze the important factors that contribute to the formation of cyanobacteria in lakes. The causality tests performed on multiple water quality data helped to determine Alkalinity, Chlorophyll-a (Chl-a), andWater Temperature …

Hazard Impact Assessment Of Brine Spills On Groundwater Pollution In Western North Dakota, Grace Dzifa Agbozo

Theses and Dissertations

The rapid expansion of oil and gas production in North Dakota’s Bakken Formation has heightened environmental concerns, particularly groundwater contamination from brine spills. Brine, a highly saline byproduct of oil extraction, poses a serious threat to water quality due to its chemical composition. This study examines brine spill impacts from 2013 to 2024 across Williams, Mountrail, McKenzie, and Dunn counties using GIS and the DRASTIC model, enhanced with Analytical Hierarchy Process (AHP) and Fuzzy Overlay techniques. Essential hydrogeological factors were analyzed to produce vulnerability index maps. Furthermore, spatial autocorrelation (Moran’s I), Optimized Hot Spot Analysis, and Emerging Hot Spot Analysis …

A Qualitative Study Exploring Best Practices And Applications Of Green, Eco, And Environmental Social Work In Canadian Social Work Practice, Ryley Kristanne Kowalski

Theses and Dissertations

Humanity and society are deeply connected to nature and the environment at their core. Through processes of colonization, the Industrial Revolution, urbanization, consumerism, and capitalism, people and societies have become increasingly disconnected from the natural environment. Introduced as a helping profession through the Industrial Revolution, social work began rooted in environment but quickly changed to understand human and societal wellbeing through the narrow scope of the social environment through the person-in-environment approach. Modern day issues of climate change, environmental degradation, environmental racism, and environmental justice movements have necessitated social work’s increased understanding of the natural environment. The purpose of this …

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 …

An Exploratory Investigation Of The Impact Of Psychological Intimate Partner Violence On College Women: A Qualitative Study, Dana Juel Conzemius-Schindler

Theses and Dissertations

Researchers have found psychological intimate partner violence (P-IPV; defined as emotional and verbal abuse utilized to degrade, demean, create fear, control, or isolate; Tolman, 1989; Sullivan et al., 2012) is detrimental to mental health functioning, including increased sexual risk behaviors, depressive and anxious symptomology, and relationship dissatisfaction (Hellemans et al., 2015; Overstreet et al., 2015). Despite this, little is known regarding the academic and psychological lived experiences of survivors of P-IPV. Therefore, the current study sought to qualitatively explore the lived experiences of female-identified students exposed to psychological intimate partner violence while in college. Through a Consensual Qualitative Research (CQR; …

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 …

Inorganic Arsenite [I-As (Iii)] Represses Human Renal Progenitor Cell Characteristics And Induces Neoplastic-Like Transformation, Md Ehsanul Haque

Theses and Dissertations

Studies on populations exposed to inorganic arsenic (iAs) have shown an association between this particular exposure and the development of chronic kidney disease (CKD) and renal cell carcinoma (RCC). However, there are few studies addressing how acute exposure of the human kidney to iAs might lead to long-term alterations that might lead to CKD or RCC. This study’s hypothesis is that renal exposure to iAs might alter the renal cells responsible for the repair and regeneration of nephrons damaged by iAs exposure or other renal toxicants. The kidney possesses a minority epithelial cell population that co-express PROM1 and CD24 that …

Cisplatin-Induced Nephrotoxicity And Adaptive Responses In Renal Progenitor Cells: Molecular Insights From Transcriptomic And Proteomic Analyses, Eloho Ighofose

Theses and Dissertations

Cisplatin is a widely used chemotherapeutic agent known for its efficacy against various solid tumors, but its clinical utility is limited by dose-dependent nephrotoxicity. The renal proximal tubule, particularly its epithelial cell population, is highly susceptible to cisplatin-induced injury due to its role in solute transport and high metabolic activity. Recent advances suggest that renal progenitor cells play a key role in epithelial repair following nephrotoxic injury; however, the molecular mechanisms underlying their response to cisplatin remain poorly understood.This study investigates the impact of both acute and chronic cisplatin exposure on immortalized human renal progenitor cells (HRTPT, CD24⁺/CD133⁺) using a …

Integrating A Canine Comfort Program With Occupational Therapy Services For Emerging Adults With Mental Health Diagnoses, Emily Vieth

Occupational Therapy Capstones

Background: Mental health plays a critical role in the lives of emerging adults (ages 18-29) including how they identify, their coping strategies, and social skills (Matud et al., 2020). Occupational therapists (OTs) can play a vital role in the management of depressive and anxiety symptoms for the promotion of an individual’s well-being (American Occupational Therapy Association [AOTA], 2020). OT can address depressive and anxiety symptoms through the incorporation of animal-assisted therapy (AAT). AAT is a therapeutic approach that uses animals to improve overall health and well-being (Pandey et al., 2024). Though still limited in evidencebased research, emerging interventions like canine …

Nature-Based Practices In Early Childhood Through An Occupational Therapy Lens, Angela Mossman

Occupational Therapy Capstones

Background: Early childhood experiences are the building blocks for all future behavior and health (Warmbold,2015). These experiences, whether positive or negative, build the foundation of the brain's architecture (Center on the Developing Child at Harvard University, 2016). The developing brain comprises neural connections that develop through an ongoing process that begins before birth and continues into adulthood (Center on the Developing Child at Harvard University, 2016). This capstone project aims to demonstrate the therapeutic benefits of naturebased practices through the lens of occupational therapy. Ginsburg et al. (2007) stated that play is essential for optimal child development. The benefits of …

Incorporating A Facility Dog Into Practice: A Guide For Occupational Therapists In Mental Health Settings, Anneka Harris

Occupational Therapy Capstones

Introduction: The field of animal assisted therapy (AAT) is growing as the evidence on the effectiveness of incorporating animals into the rehabilitation process evolves; however, there is currently a lack of guidance for occupational therapy (OT) practitioners working with facility dogs in an adult mental health population. In a setting where clients have traumatic brain injuries (TBI), substance use disorders (SUD), and serious mental illness (SMI), it is important to combine best practice for both OT and AAT approaches. The objective of this project was to understand current resources available, conceptualize appropriate interventions, and provide a guide for practitioners using …

Addressing Occupational Challenges Through Multimodal Educational And Training Intervention Approaches To Improve Health Outcomes For Caregivers And Care Recipients, Skye Gross

Occupational Therapy Capstones

Background: Family caregivers represent approximately 20% of the U.S. population (American Association for Retired Persons [AARP], 2020), with a prevalence linked to the rise of conditions and critical care needs among the baby boomer population. Family members are often relied upon to ensure the basic health needs of their loved ones as the complexity of care increases. On average, family caregivers dedicated 24 or more hours a week to caregiving tasks while fulfilling work and other essential functions. Nearly 50% provided high-intensity care to recipients with complex medical conditions with limited formal training (Reinhardt et al., 2019). These extreme levels …

A Holistic Program Manual For Permanent Supportive Housing: Integrating Housing First And Occupational Therapy Approaches, Melody Mackenzie

Occupational Therapy Capstones

Background: Individuals experiencing chronic homelessness often face complex challenges including trauma, mental health conditions, and barriers to daily living. While permanent supportive housing provides long-term housing with supportive services, gaps exist in resources tailored for both residents and residential support staff. Many existing permanent supportive housing programs emphasize behavioral or mental health approaches, with fewer addressing the full range of occupational participation needs. Occupational therapy, with its holistic and client-centered perspective, offers a valuable lens to enhance service delivery in permanent supportive housing.

Purpose: The purpose of this scholarly project was to develop two compatible tools–a Permanent Supportive Housing Residential …

The Effects Of Animals On Our Mental Health, Gracie Bowles

Psychology Student Publications

I analyzed different published journals on how animals affect our mental health. I put it into less scientific terms and made it more fun with adding in personal experiences.

Science Communication: Teen Vaping, Chloe Kwasiborski

Psychology Student Publications

What are the dangers of teenage vaping? Why do teens vape? This paper aims to explain scientific information in a clear and engaging manner for anyone to read and understand.