Digital Commons Network^™

Beyond All Possible Doubt? The Shifting Of A Juror’S Conviction Threshold In Criminal Cases Based On Charge, Sentence, And Evidence, Sophie Johnson

Theses and Dissertations

In criminal trials, jurors must make a decision that will forever change the defendant’s life (Couloute & Kopf, 2018), during which jurors may consider the impact that not convicting a guilty person may have (i.e., Type II error) or if the charge is worth the crime regardless of the defendant’s guilt (i.e., Type I error). Jurors may raise their conviction thresholds if they feel a type II error is favorable to a type I error. Researchers have discovered that in cases where charge severity (e.g., Kerr, 1978) or the perceived sentence (e.g., Kaplan & Krupa, 1986) is higher, jurors shift …

The Influence Of Active Galactic Nuclei (Agn) Feedback On Star Formation In Spiral Galaxies, Moreom Akter

Theses and Dissertations

We investigate the influence of Active Galactic Nuclei (AGN) feedback on star formation in spiral galaxies by analyzing a sample of 324 red and 273 blue spiral galaxies from 115 low-redshift galaxy clusters. The multi-wavelength dataset combines optical emission line data from the Sloan Digital Sky Survey (SDSS), X-ray luminosity from the Chandra X-ray & XMM-Newton observatories, and ultraviolet (UV) and infrared (IR) measurements from GALEX and WISE. Using diagnostic emission line ratios, we constructed Baldwin, Phillips, and Terlevich (BPT) diagrams to classify galaxies based on nuclear activity. Our analysis reveals that most of the red spirals have AGNs and …

The Role Of Student Loan Debt On Delayed Homeownership Among Black American College Graduates, Dedan Makongoro Kusaga

Theses and Dissertations

The growing burden of student loan debt in the United States has raised significant concerns about its broader social and economic impacts, particularly on young adults’ ability to achieve financial milestones such as homeownership. Black American college graduates are especially affected, often carrying higher loan balances and facing greater financial barriers due to historical and structural inequalities. This quantitative study examined the role of student loan debt and other factors influencing delayed homeownership among Black American college graduates, using the public-use Baccalaureate and Beyond (B&B: 2008/2018) dataset from the National Center for Education Statistics (NCES). Findings indicated student loan debt, …

Thresholds In Modular Lattices, Daniel Atta Kwakye

Theses and Dissertations

This study investigates threshold phenomena in infinite modular lattices, extending classical threshold theory beyond Boolean and distributive lattice settings. Specifically, let\(P\) be a finite graded modular lattice with a finite graded modular lattice with rank function \(r: P \rightarrow \mathbb {N}\). By adapting probabilistic combinational methods, notably the methods used by Janson, Łuczak, and Ruciński (2011), we establish rigorously that every monotone property \(F\subseteq P\) possesses a threshold under the chain-uniform random model.Formally, this threshold is characterized by a critical rank \(M^*\), at which the probability \(\mathbb{P}(\Gamma_M\in F)\) transitions sharply from nearly 0 to nearly 1 as the parameter \(M\) …

Studentification And Off-Campus Housing: A Case Study Of Grand Forks Near-Campus Neighborhoods, Alva Lindstroem

Theses and Dissertations

With national trends in higher education experiencing dwindling enrollments and personal economies increasingly strained, the University of North Dakota (UND) has grown to become the biggest public higher education institution in North Dakota, having effectively bounced back from the COVID-19 pandemic drop in enrollment. Grand Forks, North Dakota, is the host of UND and home to a student body of over 14,000 as of 2023 fall semester. This study focuses on; to what extent is studentification taking place in Grand Forks, ND; and how the observed housing- and demographic patterns in Grand Forks align with, or diverge from, the broader …

The Effect Of Metallothionein-3 On Global Gene Expression And Transcriptome Of Kidney Progenitor And Urothelial Cells, Julia Kochanowski

Theses and Dissertations

Metallothioneins (MT) are low molecular weight, cysteine-rich, metal-binding proteins that protect against metal toxicity. MTs have several functions, such as transport of metals, detoxification of metals, and protection from metal toxicity. MT-3, first called growth inhibitory factor, was originally discovered as the Alzheimer’s disease gene. MT-3 has a unique structure with 7 additional amino acids. The role of MT-3 is unknown. Some studies suggest MT-3 plays a role in the immune system and with cisplatin resistance. RPTEC/TERT1 cell line is an immortalized cell line from the human proximal tubule of an adult kidney. It was determined that RPTEC/TERT1 cultures consisted …

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, …

From Emily To Loralei To Rory: A Qualitative Textual Analysis Of Scripts From Gilmore Girls For Real-World Application, Erin Mccann

Theses and Dissertations

In the realm of interpersonal communication and intrafamilial research, one dynamic, the mother and daughter pairing, is especially poignant in exploring the ties of closeness, the openness of communication and the potential for long-term impact on a daughter’s development. When studying the mother and daughter dynamic through a work of fiction, patterns can be observed without bias, allowing for evaluation of the strength of relationship and identification of broader implication to the discipline of family communication. In this study, a textual analysis was conducted evaluating 21 exemplary episodes of the 2000s television show Gilmore Girls focused entirely on the interactions …

Adaptblur: Adaptive Linear Filter For Enhanced Deep Learning Classification Performance, Ganesha Thondilege

Theses and Dissertations

Image preprocessing is crucial in deep learning models for high performance and accuracy. This study implements AdaptBlur, a dynamic linear filter developed from a second-order partial differential equation using finite difference approximations, which enhances image quality while preserving the image structure with dynamic parameters that are optimized through the Nelder-Mead optimization, minimizing mean square error to improve the effectiveness of the filter. Moreover, the study evaluates the impact of the results on model performance on deep learning classification using publicly available datasets. Experimentally, image classifiers trained on preprocessed data with the AdaptBlur filter perform much better than those trained without …

Addressing The Impact Of Unlicensed And Under-Licensed Teachers In Pk-12 Schools: How School Administrators Offer Support, Taylor Topinka

Theses and Dissertations

As the impact of the teacher shortage grows, more teachers are entering classrooms with incomplete teacher licensure. Related literature affirms that new-to-profession teachers experience what Danielson (1999) described as a “sink or swim in the deep end of the pool” culture as they attempt to navigate the beginning of their teaching career with an incomplete license or no license entirely (p. 251). The influx of partially-licensed teachers engaging students is a dilemma created by the growth of the teacher shortage. The purpose of this study was to address the impact of unlicensed and under-licensed teachers on student growth and achievement …

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. …

Spatial And Temporal Assessment Of Meteorological Drought Using The Standardized Precipitation Index (Spi) And Its Effect On Crop Yield Over The Corn Belt Region Of The United States From 2000 To 2023, Victor Araya

Theses and Dissertations

Climate change and global warming have contributed to extreme weather events and patterns, including severe flooding, earthquakes, wildfires, and drought. Drought happens to be the deadliest catastrophic event around the world. Drought's impact on ecosystems and local communities has been increasing in many parts of the world, including the United States and, most importantly, the corn Belt, which also happens to be the country's food basket. Understanding drought prediction and mitigation can be investigated through drought indices. The Standardized Precipitation Index (SPI) is considered the most reliable in this study. It is used in this study to present the critical …

Applying The 4d Model Of The Country Image To Explore The Relationship Between Saudi Arabia’S Sport Diplomacy And Its Perceived Image Among American Adults, Ibrahim Bin Jaman

Theses and Dissertations

This study investigated the relationship between Saudi Arabia’s sports diplomacy and strategy of hosting major international sports events and its image among American adults. Notably, the Saudi government’s strategic use of hosting sports events aligns with the goals of Saudi Vision 2030, fostering economic diversification and promoting tourism. The conducted study examined American adults’ exposure to international sports events held in Saudi Arabian, this exposure’s correlation with the image of the country, and potential differences in the perception of Saudi Arabian between American adults who have been exposed to sports events in Saudi Arabia and those who have not. A …

Gender-Based Perceptions Of Confronting Prejudice In The Classroom, Mary Hamilton

Theses and Dissertations

Disparities exist between men and women in academia at the faculty and student level. Academically, women are judged as being weaker and inferior, and many describe experiences of sexism, often within the classroom setting. Few studies have investigated the impact of an instructor confronting sexism in the classroom. The current study examined the effects of an instructor’s gender, student’s gender, and instructor’s confrontation decision on students’ perceptions of the instructor, classroom environment, and the moderating effect of self-reported sexism. Participants read one of four vignettes describing an act of sexism in the classroom where a male (or female) instructor confronts …

Advanced Motor Control Using Td3 Model-Free Reinforcement Learning, Muhammad Azam

Theses and Dissertations

Motor control plays a critical role in industrial automation, ensuring the precise regulation of speed, torque, and position across various applications. Traditional motor control techniques, such as open-loop, closed-loop, and feedback control, have been widely used but face limitations in handling complex and dynamic systems. Recent advancements in machine learning (ML) offer potential improvements in motor control by enabling systems to learn optimal control policies autonomously. This research investigates the integration of Reinforcement Learning (RL) with Field-Oriented Control (FOC) for the control of Permanent Magnet Synchronous Motors (PMSMs). The study aims to address a significant gap in reward function design, …

Nanoscale Frictional Properties Of Two-Dimensional Snse And Snse2 With Lateral Force Microscopy, Thomas Iken

Theses and Dissertations

In this study, we employed an atomic force microscopy-based lateral force microscopy technique to examine the nanoscale frictional characteristics of 2D SnSe and SnSe2 layers, and we compared these results with those of graphene, a commonly used solid lubricant. Our results revealed that both SnSe and SnSe2 layers exhibited superior lubricative performance compared to graphene with similar thicknesses. Experimental results were further substantiated by extensive Density Functional Theory calculations to understand the observed frictional properties of these materials.

Gender And Family Differences In Faculty Motivation, Allyssa Jean Baumbach

Theses and Dissertations

This three-article dissertation examines gender and family differences in faculty motivation. Faculty motivation has primarily been studied in the context of development but has only recently begun to focus on productivity and success. Further, studies of faculty motivation do not provide in depth analysis of gender and family differences. Therefore, the current program of research uses the Self-Determination Theory to examine gender and family differences in faculty motivation and considers how traditional gender norms may contribute to these differences. The first study explored if gender difference existed. Data from a small sample of faculty (N=118) from two universities in the …

Photometric Analysis Of Four Near-Earth Asteroids With A Convex Shape Model Of (25330) 1999 Kv4, Lucas James Hutton

Theses and Dissertations

Astrometric and photometric observations of asteroids provide information regarding their positions, rotation rates, axis of rotation, and shapes. Lightcurve inversion utilizes an asteroid’s change in brightness with respect to phase angle change, which maximizes ground-based observational data. This study investigated the rotational properties of four near-Earth asteroids (NEAs) with a single pole solution and convex shape model of (25330) 1999 KV4 using the lightcurve inversion method. Photometric observations were remotely obtained using the Skynet Robotic Telescope Network, andNOIRLAB’s Cerro-Tololo Inter-American Observatory’s (CTIO) 24” Ritchey-Chretien Prompt 3 Telescope. The data were calibrated using AstroImageJ software, and lightcurve analyses were performed using …

Attributions Of Blame In Cases Of Stealthing, Shane William Knutson

Theses and Dissertations

Nonconsensual condom removal (NCCR), also known as “stealthing”, is a form of sexual abuse where an individual removes the condom without their sexual partner’s knowledge. While research regarding prevalence of NCCR has been conducted over the past decade, there are still aspects of previous research on other forms of sexual abuse that did not account for cases of NCCR. One such gap in the current literature are studies that investigate how individuals attribute blame to the victims of NCCR. Previous research has shown that there are differences in how individuals attribute blame towards victims of sexual abuse based on different …

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 …

Ai-Bms: Ai Battery Management System For Safe Uas Operations In High Electric And Magnetic Fields And Uncertain Conditions: Wind, Battery Drain, Temperature, And Payload, Tanzim Jim Hassan

Theses and Dissertations

Unmanned aerial systems/vehicles (UAS/UAVs) are increasingly utilized for inspecting high-voltage (HV) transmission (Tx) lines. However, operating in the vicinity of electric (E) and magnetic (H) fields can affect UAV control and battery performance. Pilots unfamiliar with high E/H field environments often struggle to accurately estimate remaining flight time, resulting in either premature mission terminations or crashes due to depleted batteries. To address these challenges, this thesis focuses on developing an intelligent Battery Management System (BMS) for UAVs to ensure safe and reliable surveillance operations under various uncertain conditions, such as wind gusts, temperature variations, E/H fields, battery drain, and payload …

Thermally Induced Evolution Of The Cement Microannulus In Co2 Injection Wells, Jawad Ali Khan

Theses and Dissertations

Ensuring wellbore integrity during CO₂ injection is a critical challenge in Carbon Capture and Storage (CCS), as failures at the casing-cement and cement-formation interfaces can create potential leakage pathways. This dissertation presents a multi-scale, physics-based investigation into well integrity risks, integrating finite element analysis (FEA), thermal-mechanical-poroelastic modeling, and transient stress analysis to evaluate cement sheath stability, fracture-driven stress localization, and microannulus formation under various CCS conditions.

A key novelty of this research is the development of a fully coupled thermal-mechanical-poroelastic FEA framework using COMSOL Multiphysics, a renowned industry-standard software for multiphysics simulations. This model enables a dynamic, time-dependent assessment …

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 …

Domain Adapted Signal Classification For Simulated And Real-World Signals, Mohammad Ali

Theses and Dissertations

Signal classification models based on deep neural networks are trained on a set of data either simulated or over-the-air that are restricted to specific channel environments, varying distortion conditions such as SNR offsets. The consequence are models that unexpectedly do not do well in scenarios when the feature distribution between domains are too large such as when simulated models are deployed in real world environments. In this regard, we propose signal classification framework leveraging Domain-Adversarial Neural Networks to address SNR variability for simulated data Unsupervised Domain Adaptation frameworks for simulated to real world signals. Our first approach employs domain adversarial …

Great Expectations: How Gender Assigned At Birth Shapes Viewpoint Based Perceptual Disparities In Gender-Diverse People, Adelyn Emter

Theses and Dissertations

The purpose of this study was to examine disparities between personal beliefs and perceived societal ideologies about earning gendered traits and maintaining masculinity and femininity, with a focus on gender-diverse perspectives and the influence of gender identity on responses to social research. The current study recruited 334 gender-diverse participants to compare Viewpoint and Gendered Trait based on participant Gender Assigned at Birth, using twelve statements about earning and maintaining masculinity and femininity. The Traditional Egalitarian Sex Role (TESR) Inventory and Social Dominance Orientation (SDO) Scale were used as covariates which significantly contributed to the model. As expected, societal belief scores …

Beyond The Game: Designing An Nil First-Year Seminar Through Thematic Analysis Of Division 1 Student-Athletes Perspectives, Laura Dimattia

Theses and Dissertations

The 2021 relaxation of Name, Image, and Likeness (NIL) regulations by the NCAA has transformed collegiate athletics, granting student-athletes the opportunity to profit from their personal brands. These changes deliver financial and personal advancement opportunities but introduce new challenges. Student-athletes encounter challenges in managing responsibilities related to athletics, academics, and commercial activities amid evolving NIL compliance requirements. Universities struggle to manage multiple pressures including compliance requirements and recruitment strategies along with challenges from the Transfer Portal.

This study explores the motivational factors behind student-athletes' engagement with NIL and their learning preferences through a qualitative approach. The researcher conducted in-depth interviews …

Belongingness And Science Identity Of Underrepresented Students In Aerospace Sciences, Bella Hettich

Theses and Dissertations

Despite efforts to support underrepresented individuals—specifically those from racial, ethnic, and gender minority groups—they continue to face unique challenges that affect their belongingness in aerospace sciences, leading to issues with retention in educational programs and subsequent professional pathways. Such hindrances to personal achievement can also impede broader organizational goals. Addressing these challenges is critical, as supporting the success of underrepresented individuals fosters diverse perspectives, which are essential for driving innovation and maximizing organizational productivity. Just as importantly, ensuring that every individual, regardless of background, has access to opportunities and the support needed to succeed fulfills an ethical obligation. Upholding the …