Digital Commons Network^™

The Monstrosity Of “Deor”: Apophasis In Character And Form, Ada Smith

Electronic Theses and Dissertations

T. A. Shippey once referred to “Deor” as “that most perfect of Old English poems.” And indeed, the poem cannot help but inspire the reader to deep contemplation, even as it baffles scholars in so many ways. From its rare stanzaic structure to its anomalous refrain—“þæs ofer eode þisses swa mæg”—the elegy has inspired much debate within the scholarship. In fact, one of the few agreements among the scholars of “Deor” is the poem’s capacity to undermine all interpretations. The poem has the remarkable quality of mentioning many well-known legendary and historical figures while, at the same time, denying the …

Assessing The Impact Of Local–State Revenue Shares And Property Tax Structure On Effective Farmland Tax Rates: Panel Evidence From Seven Midwestern States, 2009–2022, Imtiaz Amin Chy

Electronic Theses and Dissertations

Property taxes are the primary revenue instrument of local governments in the United States, yet the burdens they impose are distributed unevenly. Farmland, because it cannot be relocated, often absorbs a disproportionate share. This paper examines two related questions: what fiscal factors determine how heavily agricultural land is taxed, and do those tax rates capitalize into farmland asset values? Using an annual panel of Iowa, Illinois, Indiana, Kansas, Minnesota, Nebraska, and Wisconsin from 2009 to 2022, we first document how each state allocates property tax revenue across four major spending categories (education, public welfare, health, and utilities) finding that all …

Production, Characterization, And Diagnostic Application Of Monoclonal Antibodies Against The N-Protein Of Avian Metapneumovirus Subgroup B, Ravi Gupta

Electronic Theses and Dissertations

Avian metapneumovirus (aMPV) is a respiratory pathogen that causes Turkey Rhinotracheitis (TRT) in turkeys and Swollen Head Syndrome (SHS) in chickens. The infection leads to facial swelling, nasal discharge, reduced egg production, and poor growth. This virus is classified into four subgroups: aMPV-A, B, C, and D, with two other novel subgroups, in which aMPV-A, B, and C are most prevalent in the commercial flocks. In early 2024, aMPV-A and B outbreaks have been reported in the US, resulting in severe economic losses. An economic assessment estimates around $112 million in losses in Minnesota and up to $434 million in …

Managing The Mood: How Managerial Communication Shapes The Experience Of Emotional Labor Among Restaurant Employees, Brynn Olverson

Electronic Theses and Dissertations

Restaurant work is emotionally demanding work for servers and bartenders. Organizational Support Theory (Eisenberger et al., 1986) suggests that employees’ perceptions of their organizations’ support can bolster the negative side effects of such work. However, past instruments used to measure these perceptions do not distinguish between types of emotional experience, nor separate perceptions of emotional support from other forms of support. Likewise, OST notes that supervisors play a key role in influencing perceptions of organizational support, but more work is needed to determine specific communicative behaviors that can increase perceptions of organizational support. The study at hand proposes that managers' …

Data-Driven Optimization Of Memory Effects And Critical Components In Cascading Failure Interaction Networks, Md Farhan Tanvir

Electronic Theses and Dissertations

Cascading failures are a major concern for modern power systems‚ where a small failure can cascade through the network to create a large blackout. Because such an event could have catastrophic economic and social costs it is important to understand cascading failures‚ how to model them‚ and the possibility of reducing them. In this thesis‚ we develop a data-driven framework based on actual utility outage data to model and reduce cascading failures. The proposed methodology is based on generation-dependent interaction models and in this study interaction matrices obtained from historical outage events are used to describe the interaction between generations. …

The Fertilization President: A Rhetorical Analysis Of The United States’ Rebirth Of Pronatalism, Kara Vetch

Electronic Theses and Dissertations

The United States experienced one of the lowest birth rates in decades in 2024 and has been blamed by policymakers for poor economic and societal outcomes. To combat this, President Donald Trump signed an executive order to encourage healthcare insurances to lower the cost of fertility treatments. Policies encouraging more births align with pronatalist ideologies, the belief that higher national birth rates are better for society. Furthermore, Vice President JD Vance and social media influencers, Malcolm and Simone Collins, have built a strong resurgence of pronatalist ideologies through public addresses and interviews long before Trump’s executive order. For an in-depth …

Computational Modeling Of Biophysical Transport: Respiratory Drug Delivery And Tissue-Level Physics, Md Tariqul Hossain

Electronic Theses and Dissertations

The nasopharynx, the upper part of the pharynx located at the back of the nose serves as a critical hotspot for initial respiratory infections via inhaled transmission, largely due to the presence of specific surface receptors that pathogens can exploit for cell invasion, combined with a relatively sparse local mucociliary substrate. To enhance the therapeutic efficacy against certain pathogens, such as the SARS and Influenza viruses, it is therefore essential to improve the targeted delivery of drugs to the nasopharynx. This study explores the use of intranasal sprays as a method for drug administration and models the transport of sprayed …

Numerical Investigation Of Injector Location And Equivalence Ratio In A Flame‐Holder Cavity Scramjet, Matthew Sorenson

Electronic Theses and Dissertations

This thesis presents a CFD-based parametric study of injector location and fuel rate in an ethylene-fueled flame-holder cavity scramjet using STAR-CCM+. Simulations are performed for three injector locations (x/D = 18, 36, and 54) and nine equivalence ratios spanning from ϕ = 0.2 to 1.0 in 0.1 increments. The study aims to determine how injector placement and fueling level alter scramjet performance across a broad operating sweep. The results show a clear regime change between ϕ = 0.2 and ϕ ≥ 0.3. At ϕ = 0.2, combustor behavior is weakly sensitive to injector location compared to the higher-fueling cases. For …

Sustainable State: A Location-Based Analysis Of Recycling Habits On A University Campus, Valentyna Labrie

Electronic Theses and Dissertations

Universities are mini communities for the younger generation. Their role in advancing sustainable waste management practices is very valuable. That is why it is crucial to promote pro-environmental behavior, monitor consistent sorting accuracy, and maintain positive recycling indicators such as contamination and diversion rates. The research aim was to explore the impact of spatial context and visual communication strategies on recycling accuracy, contamination, and diversion rates at South Dakota State University (SDSU). The research analysed the impact of proximity to food service areas on waste composition. Another research interest was the impact of educational signage and stickers on recycling behavior …

Cyber Security Related To Agricultural Data Encryption Using Edge Computing Devices, Mohammad Ashik Alahe

Electronic Theses and Dissertations

Smart Agriculture increasingly relies on image-based sensing, edge computing, and artificial intelligence to support data-driven decision-making in modern farming systems. While these technologies improve productivity and resource efficiency, they also introduce significant cybersecurity risks, particularly agricultural images transmitted and processed in real-time on resource-constrained edge devices. Unauthorized access, data manipulation, and interception of image data can lead to incorrect agronomic decisions and severe economic consequences. Despite this risk, efficient and practical cybersecurity solutions for real-time agricultural imaging remain limited. This study addresses these challenges by developing and evaluating encryption-based cybersecurity frameworks tailored for real-time agricultural image protection on edge computing …

Ai-Assisted Wheat Spike And Spikelet Detection And Density Mapping Using Multiscale Remote Sensing Data To Support Wheat Grain Yield Forecasting, Hillson Ghimire

Electronic Theses and Dissertations

Wheat grain yield is determined by the number of spikes per unit area, the number of grains per spike, and kernel weight. However, spike number and spikelets per spike are still measured predominantly through manual counting, a labor-intensive and subjective process that limits phenotyping throughput and selection intensity in modern wheat breeding programs. This thesis develops and evaluates a deep learning framework for automated, high-throughput phenotyping of wheat spike and spikelet traits across complementary imaging scales and implements the framework as a deployable platform. First, two large-scale benchmark datasets with oriented bounding box (OBB) annotations were established, comprising 48,521 spike …

Bridging Language And Game Worlds: Semantic Representations And Text-Driven Terrain Generation For Procedural Content, Zhongyu Xie

Electronic Theses and Dissertations

Procedural Content Generation (PCG) systems produce vast quantities of game levels, terrain, and environments, but lack semantic interfaces: no shared vocabulary exists between natural language, designer intent, and the structured representations generators operate on. This thesis addresses the language-content grounding gap in PCG through two complementary studies spanning semantic analysis and semantic synthesis. The first study introduces a group-supervised contrastive learning framework for semantic representation of symbolic PCG maps under many-to-one semantics, where visually distinct maps may share the same design intent. The framework combines parameter-guided semantic grouping, LLM-based caption augmentation, and a multi-positive contrastive objective that aligns language with …

Regenerative Farming Practices Effects On Invertebrates In Wheat Systems, Daniel J. Pecenka

Electronic Theses and Dissertations

The modern agricultural system is based upon the Green Revolutions principle of creating more food. However, this came at a cost of invertebrate declines through habitat loss, pollution, and the introduction of agrochemicals. Here I address knowledge gaps in biological inventory of invertebrates across north, northwestern, and central North America. These invertebrates were identified and given a size scale and a dietary guild. We also examined how regenerative and conventional agricultural practices can affect invertebrate populations within the same crop. We also examined whether regenerative management wheat fields fostered great invertebrate communities while limited pest presence. Invertebrate populations were negatively …

Development And Application Of Lc-Ms/Ms Methods For The Determination Of Environmental Contaminants, Mawuli Wilson-Cee Macdonald

Electronic Theses and Dissertations

Environmental contaminants such as neonicotinoids and bisphenols are increasingly detected at ultratrace concentrations in environmental and consumer matrices, necessitating sensitive and efficient analytical methodologies. This dissertation presents the development, validation, and application of liquid chromatography–tandem mass spectrometry (LC–MS/MS) methods coupled with simplified sample preparation techniques. In Chapter 2, a direct aqueous injection (DAI) LC–MS/MS method was developed for the analysis of five neonicotinoids in surface water, eliminating extensive sample preparation. The method demonstrated strong linearity (R² = 0.993–0.998), with limits of detection (LOD) ranging from 0.5 to 4 ng/L and lower limits of quantification (LLOQ) of 10–50 ng/L. Accuracy (80–120%) …

The Impact Of Synchronous And Asynchronous Preference On The Performance Of Distance Learning Students, Christopher A. Wilson

Electronic Theses and Dissertations

Distance learning is a growing part of education. The transition to distance learning was underway at higher education institutions, but the COVID-19 pandemic forced institutions of all types to rapidly transition to distance learning. The technology that was adapted during this emergency distance learning remained in the classroom once normal instruction resumed. This quantitative study examined two aspects of distance learning technology in education. The study examined student preference for either synchronous or asynchronous instruction through the framework of expectancy theory. Students who were more familiar with the course material were hypothesized to have a higher expectation of success and …

Evaluating Planting Methods For Native Seed Production And Exploring Granivory In The Northern Great Plains, Allison Dollen

Electronic Theses and Dissertations

Temperate grasslands have faced immense losses due to land use change in the last 150 years and less than half of the overall grasslands that once covered North America remain today. A portion of historic and remaining U.S. grasslands are located within the northern Great Plains (NGP) region which is home to over 1,600 species of native plants and provides many ecosystem services and economic benefits. Initiatives to restore grasslands and their ecosystem services are currently underway, but barriers such as limited native seed supply and granivory hinder restoration efforts. My first chapter addresses knowledge gaps in planting methods for …

Impact Of Water Level Fluctuations On Fish Populations In Eastern South Dakota Rivers, Benjamin Schall

Electronic Theses and Dissertations

Riverine systems are highly dynamic, and changes in flow conditions can impact the population dynamics of fishes. Increased flows from historical averages in eastern South Dakota rivers have likely impacted fish populations. The goals of this study were to 1) better understand the changes in resource use by Blue Suckers Cycleptus elongatus through retrospective eye lens stable isotope analysis, 2) determine the effects of record flooding in the James River on complex woody habitat and Flathead Catfish Pylodictis olivaris population structure, and 3) assess the influence of river discharge and temperature on Channel Catfish Ictalurus punctatus and Flathead Catfish condition …

Integration Of Ders Volt-Var Dynamic Constraint Into Time-Coupled Optimal Power Flow For System Stability, Shadrack T. Asiedu

Electronic Theses and Dissertations

The transition toward power systems with higher levels of inverter-based generation requires operating models that account for the dynamic support available from distribution-connected resources. Although inverter-based DERs can provide fast reactive-power support through functions such as Volt–VAR control, conventional optimal power flow models generally represent these resources as static power injections. In addition, transmission-level dispatch commonly represents the downstream distribution system as an aggregated load and does not explicitly consider the voltage at the point of common coupling. Consequently, an OPF solution may satisfy the transmission-bus voltage constraints while producing an operating point at which the downstream DERs do not …

Modeling Heterogeneous Trajectories Of Chronic Kidney Disease Progression With Finite Mixture Models Using The All Of Us Dataset, Yahaya Mumuni Musah

Electronic Theses and Dissertations

Background: Chronic kidney disease (CKD) does not progress uniformly across patients, and a single average trajectory often fails to capture this heterogeneity. Understanding variation in disease progression is important for improving risk stratification and clinical management. 
Objectives: This study aims to characterize the heterogeneity of chronic kidney disease (CKD) progression using longitudinal estimated glomerular filtration rate (eGFR) data and to identify factors associated with distinct progression trajectory patterns. 
Methods: A longitudinal cohort study was conducted using data from the All of Us} Research Program collected between April 23, 2002, and October 1, 2023. Adult participants with repeated eGFR measurements were …

Enzyme Susceptibility And Functionality Of High Protein Retentates And Reconstituted Ingredients, Khushi Dubey

Electronic Theses and Dissertations

This thesis explores the effects of processing history on the enzymatic susceptibility and functional properties of high-protein dairy ingredients, with a specific focus on ultrafiltered (UF) and microfiltered (MF) retentates and spray-dried powders. While retentates and powders are often used interchangeably in industrial applications, processing steps, such as drying, can induce structural and physicochemical changes that affect protein functionality and enzyme accessibility. Milk protein concentrates (MPC) and micellar casein concentrates (MCC) were standardized to 10% protein and subjected to enzymatic treatments, including proteolysis (Alcalase and rennet) and crosslinking (transglutaminase and laccase). Structural modifications were evaluated using capillary gel electrophoresis, non-protein …

The Lived Experience Of Special Education Director Retention: A Phenomenological Study Of Motivational And Organizational Influences, Matthew R. Taylor

Electronic Theses and Dissertations

The stability of leadership in special education is crucial for ensuring regulatory compliance, programmatic quality, and equitable services for students with disabilities. However, U.S. public schools face persistent challenges in retaining special education directors, resulting in a loss of institutional knowledge, service fragmentation, and increased risk of compliance failure. Drawing on self-determination theory and job embeddedness theory, this phenomenological study explored the intrinsic and extrinsic aspects that influence special education directors’ decisions to remain in their roles. Ten experienced special education directors from diverse public school settings in Texas participated in semistructured interviews and follow-up quantitative questionnaires. The analysis revealed …

Finding Value In Professional Learning: Developing Teacher Learning That Is Internalized And Implemented In Practice, Stephanie Dossett

Electronic Theses and Dissertations

Abstract

This study was designed after the researcher engaged in multiple mandated professional learning experiences with faculty members who expressed dissatisfaction with their learning experiences, did not desire to engage in learning on the mandated topics, and wanted to engage in different types of learning opportunities. The problem was centered around dissatisfaction with professional learning among teachers and the lack of implementation of their professional learning in the classroom. The goal was to gather feedback that could help leaders design mandated learning for teachers that they would find satisfaction in and implement in their classroom. The study used semistructured qualitative …

Faculty Perceptions Of Engaging Generation Z Students Through Positive Education In The Classroom, Ashley D. Ragsdale

Electronic Theses and Dissertations

This qualitative study examined the engagement gap between Generation Z students and faculty in higher education, emphasizing how positive education approaches can help faculty become more confident and effective instructors. Generation Z students prefer instant internet access and digital learning, have shorter attention spans, and tend to be disengaged when instructors rely on traditional teaching methods. After the COVID-19 pandemic, this engagement gap became more evident. This basic qualitative study used semistructured interviews, reflexive journaling, and nonparticipatory observations. Participants included full-time health science faculty at a private university in central Texas. Each had at least 2 years of teaching experience …

Accessing Campus Mental Health Services In A Nigerian Southwestern University: Barriers To Academic Success, Caroline Dada

Electronic Theses and Dissertations

Mental health disorders are a significant health concern among higher education institutions in sub-Saharan Africa, including Nigeria. A substantial treatment gap exists in the Nigerian healthcare system, and this gap is further worsened by cultural and religious barriers, which reinforce stigma that discourages students from seeking professional help. This qualitative narrative inquiry explored the barriers students encountered when accessing mental health services at a university in Southwestern Nigeria, to increase service access. Qualitative semistructured interviews were conducted with seven professional mental health providers at a university counseling center between March and April 2025. Inductive thematic analysis was used to identify …

Assistant Principals’ Perspectives And Experiences Concerning Their Influence As Instructional Leaders On Student Achievement In Title I Schools, Courtney J. Charles

Electronic Theses and Dissertations

Abstract

This qualitative descriptive study explored the perspectives and experiences of assistant principals in Title I schools in the context of their instructional leadership responsibilities. The study examined the relationship between assistant principals as instructional leaders in Title I schools and student achievement by addressing research questions related to curriculum implementation, data-driven decisions, school culture, instructional support, and professional development. Moreover, this study used purposeful sampling to select 13 assistant principals from Title I schools, and data were collected through semistructured interviews and analyzed using thematic analysis. Marzano’s focused school leader evaluation model served as the framework for interview questions. …

Building Relationships: Does Perceived Counselor Cultural Humility Improve Client Satisfaction Of Mental Health Services Within Therapeutic Dyads Of Dissimilar Identities?, Noah Schoch

Electronic Theses and Dissertations

A wealth of clinical research has uncovered the presence of mental health treatment disparities and a lack of treatment consistency when working with clients of dissimilar identities. The purpose of this dissertation study was to investigate potential causes for the observed disparities minoritized individuals have experienced and understand if cultural humility was a variable that affected mental health treatment satisfaction when counselor-client had dissimilar cultural identities. This was achieved through the following research questions: (1) What is the relationship between the extent of client perceived racial/ethnic similarity within the therapeutic dyad and client-rated mental health treatment satisfaction? (2) What is …

Effectiveness Of Picture Exchange Communication System On Functional Communication For Saudi Children With Autism Spectrum Disorder (Asd), Mohammed Albahrani

Electronic Theses and Dissertations

Autism Spectrum Disorder (ASD) is a complex neurodevelopmental disorder characterized by restricted interests, repetitive or inflexible behaviors, and challenges with communication and socialization (Flannery & Wisner-Carlson, 2020). Children with expressive communication disorders, including those with ASD, can benefit from using Augmentative and Alternative Communication (AAC) as a tool to improve their communication skills (Chazin et al., 2016). The AAC approach helps them learn and communicate more effectively by addressing various needs, such as making requests, commenting, or responding to questions (Mirenda, 2001). Many families, special education classrooms, and inclusive settings have adopted the Picture Exchange Communication System (PECS), an evidence-based …

Family Functioning And Adolescent Outcomes In Wilderness Therapy: A Quanitative Analysis Of Change And Predictive Relationships, Elizabeth Santone

Electronic Theses and Dissertations

This study explored the impact of wilderness therapy on adolescent and family functioning using archival data from a licensed outdoor behavioral healthcare program. The purpose of this research was to examine both individual and systemic changes over the course of treatment and to explore whether improvements in family functioning were associated with youth outcomes. The final sample included 1,293 adolescents who completed the Youth Outcome Questionnaire (Y-OQ 2.01) at intake and discharge. A subset of 454 adolescents and their caregivers also completed the Family Assessment Device (FAD) at both time points. Paired-sample t-tests revealed statistically significant improvements in both adolescent …

Examining The Effects Of Video Modeling To Enhance Culturally Specific Social Greeting Skills In Preschoolers With Asd In Saudi Arabia, Sarah Alzahrani

Electronic Theses and Dissertations

A lack of social communication skills, including initiation and responding, has been a prominent characteristic of children diagnosed with ASD (Kanner, 1943; Kroeger et al., 2007). Enhancing these skills in children with ASD during early childhood is crucial to their future relationships, friendships, participation in communal activities, and overall lowering the likelihood of adverse long-term effects, giving significance to this age as a pivotal period for enhancing various skills (Hart Barnett, 2018). Failure to provide interventions to address social communication in children with ASD, specifically in cultures that value this skill, can impede their integration into that society. Thus, this …

The Marathon: A Qualitative Exploration Of The Lived Experiences Of Black Male Educators, Lloyd M. Cheatom Sr

Electronic Theses and Dissertations

Utilizing a culturally relevant framework and methodology, this qualitative dissertation proposal aims to explore and investigate the unique life experiences and exposures that influence Black men to not only become educators but to sustain their careers in the educational field. The purpose of this study is to identify ways in which 1Nation Mentoring can organically implement strategic opportunities that replicate experiences capable of inspiring interest among young Black males to pursue meaningful roles within education and foster a pipeline of future Black male educators.

Additionally, this research will examine the intersection between education and trauma-based experiences, as well as the …