Digital Commons Network^™

Biological, Histological, And Immunohistochemical Responses To Heat Stress In Common Goldfish, Carassius Auratus, Ngozichukwu Francis Ngozichukwu

Theses and Dissertations

Global climate change has led to rising temperatures, posing significant challenges to aquatic ecosystems and the health of ectothermic species such as goldfish (Carassius auratus) This thesis investigated the effects of heat stress on growth performance, histological alterations, and molecular stress responses in the gill and kidney tissues of goldfish Fish were exposed to control (24°C), medium (28°C), and high (32°C) temperatures for two weeks Growth parameters, including instantaneous growth rate (IGR), absolute growth rate (AGR), body value gain (BVG), and condition factor, were evaluated alongside histological and immunohistochemical markers of stress Results revealed that high temperature significantly reduced AGR …

Opa1-Mediated Mitochondrial Dynamics In Myogenic Differentiation Of C2c12 Myoblasts, Daniel Eloy Bazan

Theses and Dissertations

Mitochondria play a pivotal role in metabolic energy production, cellular signaling, and apoptosis. To carry out these key cellular roles, mitochondria dynamically balance their organization through opposing including fusion and fission processes. The balance between mitochondrial fusion and fission is regulated by key proteins such as OPA1 (optic atrophy 1) and OMA1 (overlapping activity with metalloprotease). More recently, mitochondria have been increasingly revealed to play key roles in cellular differentiation, where metabolic demands are reprogrammed. This study aims to elucidate the specific roles of OPA1 and OMA1 in the differentiation of C2C12 myoblast cells into myotubes.

Our data demonstrates that …

Machine Learning Applications For Evaporation Predictions From Small Reservoirs: Potential Water Savings For Lower Rio Grande Valley, Texas, Syed Muhammad Fahad Abdullah

Theses and Dissertations

Local-scale reservoirs are important to regional water balance, but these are often overlooked. This study presents a robust machine learning (ML) approach leveraging reanalysis datasets to estimate daily evaporation for local-scale reservoirs in semi-arid South Texas. Selected models were trained with daily lake evaporation model (DLEM) estimates and used climatic and reservoir-specific properties as feature input variables. The multi-reservoirs training approach ensured applicable model generalization. Results show promising predictive performance with R² values ranging from 0.55–0.67 (testing) and 0.64–0.78 (validation), NSE values ranged from 0.54 0.67 (testing) and 0.64–0.78 (validation), and RMSE values ranged between 1.52–1.80 mm/day (testing) and 1.22–1.58 …

Low-Cost Monitoring And Fingerprinting Of High-Powered Electric Systems, Kwabena Buamono Aboagye-Otchere

Theses and Dissertations

Electric motors are vital to industry, transport, and energy, yet their maintenance challenges persist. While traditional reactive maintenance leads to costly downtime and safety risks, predictive maintenance, especially through IoT and machine learning offers early fault detection and operational efficiency. However, this shift introduces security concerns due to unintended magnetic emissions from motors. These emissions, though useful for non-intrusive monitoring, can be exploited to eavesdrop on sensitive industrial processes. This dissertation explores the dual nature of magnetic emissions: their value in motor diagnostics and their potential as a security vulnerability. It demonstrates how emissions can identify motors, monitor health, and …

Computational Calculations On Zno (0001) And Zno (1010) Surfaces With And Without Pd Adatoms, Amit Aich

Theses and Dissertations

In this research work, first-principles density functional theory (DFT) was used to study O-terminated, Zn-terminated ZnO (0001) surfaces and non-polar ZnO (1010) surfaces. Both clean surfaces and those with Pd or PdO adatoms were examined. Adsorption was considered at O, Zn and hollow sites. After structural relaxation, we analyzed the electronic, optical and adsorption properties. The O-terminated ZnO (0001) surface has a larger band gap of 0.76 eV and p-type conduction. The Zn-terminated surface has a smaller band gap of 0.15 eV and shows n-type behavior. Pd adsorption modifies ZnO’s electronic structure in a site-dependent manner. On O-terminated surfaces, it …

Investigating The Multiple Enzyme Complex In The Carotenoid Biosynthesis Pathway, Mercy Mormor

Electronic Theses and Dissertations

In nature, plant carotenoids are 40-carbon isoprenoids with polyene chains that may have double bonds. They are vital components of all photosynthetic organisms, playing several roles in the plant cell, including photosynthesis, pigmentation, phytohormone synthesis, signaling and photoprotection. In this study, we investigated protein-protein interactions among key enzymes involved in the carotenoid biosynthesis pathway using the Bimolecular Fluorescent Complementation (BiFC) assay. Our results revealed several interactions that suggest a coordinated regulation of enzymatic activity within this pathway, highlighting potential regulatory complexes that influence carotenoid production. The study also highlights the pivotal role of Zeta-Carotene Isomerase (Z-ISO) as a key regulatory …

Performance And Feasibility Of Pasture Rangeland And Forage Insurance In The Delta Region, Walker Bradley Davis

Graduate Theses and Dissertations

Despite being available nationwide since 2016, enrollment in Pasture, Rangeland, and Forage (PRF) insurance remains low in many regions of the country. The program's performance also presents regional discrepancies, with loss ratios varying significantly. Studies that have simplified the complexity of interval selection for producers have been shown to positively affect PRF enrollment. Such studies remain limited in several forage-producing areas. This study aims to address the lack of information in Arkansas specifically. Arkansas has among the nation's lowest participation rates and loss ratios. Low loss ratios signal that participants pay more in premiums than received in indemnities and may …

Climate Change Denial Messages As Post-Truth, David H. Kahl Jr., Ahmet Atay

Journal of Communication Pedagogy

Post-truth messages are hegemonic forms of communication intentionally designed to create false narratives that perpetuate power and marginalize others. These messages make differentiating fact from fiction difficult. Students are especially susceptible to believing and internalizing post-truth messages due to their high level of interaction with social media and the neoliberal period in which they have been raised. One type of post-truth message that has become especially prevalent is climate change denial messages that advance a neoliberal agenda. This article will apply tenets of critical communication pedagogy (CCP) as a means by which to recognize messages that deny climate change as …

Critical Communication Pedagogy At The End Of The World, Tyler S. Rife

Journal of Communication Pedagogy

This essay draws upon my experiences teaching the undergraduate course, “Communication at the End of the World,” to argue for an approach to critical communication pedagogy (CCP) contextualized by and reflexively responsive to planetary-scale ecological crises. I outline how five commitments have come to guide my classroom’s explorations through our topic of “end-times” communication: (1) Anthropocentrism and speciesism participate in the maintenance of social hierarchy; (2) environmental justice and social justice are intimately entangled projects; (3) ecological crisis is (re)made concrete, embodied, proximal, and implicative; (4) critique of language involves critique of humanism and humanist historicization; and, (5) ecologically just …

Transgressing Linguistic Supremacy: Reimagining Public Speaking Through Culturally Sustaining Pedagogy, Sergio Fernando Juárez

Journal of Communication Pedagogy

This essay reimagines public speaking education through a culturally sustaining and transgressive lens that challenges dominant norms of language, professionalism, and communication competence. It critiques the ways in which public speaking courses often reinforce linguistic supremacy by privileging standardized English and marginalizing multilingual and culturally grounded speech practices. Drawing on concepts such as translanguaging, Culturally Sustaining Pedagogy (CSP), and transgressive pedagogies, the author calls for a shift in pedagogy that centers students’ lived experiences, community-rooted knowledge, and linguistic norms. Rather than asking students to conform to hegemonic standards, this approach empowers them to speak on their own terms, resist assimilationist …

Using Equivalence-Based Instruction And Behavioral Skills Training To Teach Social Skills, Alexander Orzeck

Theses

Social skills are an integral part of human life, so it stands to reason that teaching methodologies should be developed to instruct people in this complex topic. One method to teach social skills has been behavioral skills training, in which the four-step sequence of vocal and written instruction, modeling, roleplay, and feedback exposes learners to the social concepts until a mastery criterion is reached. Skills relevant to socialization have also been taught with equivalence-based instruction, in which the concept of stimulus equivalence is employed to generate novel relations between stimuli for the purpose of teaching some skill. No instance was …

Delayed & Denied: How One Court's Interpretation Of Emtala Obstructs Emergency Abortion Care & Threatens Women's Health, Christina Dalton

University of Florida Journal of Law & Public Policy

This Note addresses whether EMTALA preempts state abortion bans in the context of a medical emergency. Part I provides background information on the Dobbs decision and how states responded, discusses the Department of Health and Human Services’ interpretation of EMTALA’s preemptive effect, and introduces the competing district court cases. Notably, the analysis of these district court cases focuses on the relevant state abortion bans as they existed at the time of each decision. Part II discusses EMTALA, specifically Congress’ intent in enacting the statute and the obligations it imposes on hospitals and physicians. Part III then provides an overview of …

"No One Leaves For Free": A Media Analysis Of The Lived Experiences And Cumulative Impacts Of The Flint Water Crisis., Jordan Leigh Gatewood

Electronic Theses and Dissertations

In April 2014, the city of Flint, Michigan changed their municipal water source from Lake Huron to the Flint River. The effects of this change have been felt far and wide as news broke across the nation that this water was contaminated with lead and residents of Flint were getting sick. This research analyzes 170 news articles from three local and three national news outlets over a 10-year span, 2014 to 2024, to determine how community voice is presented in news media to portray the lived experiences and cumulative impacts of the Flint Water Crisis. Applying a Critical Environmental Justice …

Succinctness Meets Transparency A Linking Framework Combining Hyrax And Kzg, And Its Applications, Argha Sardar

Master’s Dissertations

The thesis begins by introducing the concept of zero knowledge and exploring its various paradigms. It then focuses on a interesting problem: the construction of linking proofs. Chap- ter 2 addresses the challenge of binding two distinct polynomial commitment schemes so that they are consistent at a common evaluation point. The chapter further introduces a method for equating two different polynomials with different domains using an affine line construction. By applying certain optimizations to the bulletproofs protocol, the work achieves a reduction in both the prover’s time and the number of rounds required for proving a large committed inner product. …

Guide For Teaching Faculty 2025-2026, Coastal Carolina University

Guide for Teaching Faculty

The intention of the Guide for Teaching Faculty is to ensure that all faculty members have the requisite knowledge about University policies, procedures, and services to effectively carry out their instructional assignments.

Outsourcing, Labor Market Frictions, And Employment, Mayara Felix, Michael B. Wong

Cowles Foundation Discussion Papers

We estimate the labor market impacts of Brazil’s 1993 outsourcing legalization us-ing North-South variation in pre-legalization court permissiveness, and comparing security guards to less-affected occupations. We find that outsourcing legalization persistently reallocated jobs from older incumbent guards to younger entrants. Total employ-ment of guards and their entry from informality persistently increased, while average demographic-adjusted wages remained constant. Meanwhile, a wave of occupational layoffs displaced some incumbent guards from high-wage firms. The evidence suggests that the rise of non-core activity outsourcing reduced labor market frictions, facilitated by firm-level economies of scale in human resources and spillovers to non-adopting firms.

College Application Mistakes And The Design Of Information Policies At Scale, Tomás Larroucau, Ignacio A. Rios, Anaïs Fabre, Christopher Neilson

Cowles Foundation Discussion Papers

We examine whether large-scale information interventions can improve college application outcomes in a centralized admissions system. Using nationwide surveys from Chile, we document widespread information frictions and frequent application mistakes, such as omitting attainable preferred programs or failing to include safety options. To address these frictions, we partnered with the Ministry of Education to implement a large-scale field experiment that provided applicants with personalized information on admission probabilities and program characteristics through customized online platforms. The intervention increased the probability that previously unmatched students received an assignment by 44% and improved placement into higher-ranked programs by 20%. Building on these …

Sccosmix: A Mixed-Effects Framework For Differential Coexpression And Transcriptional Interactions Modeling In Single-Cell Rna-Seq, Anderson Bussing, Giampiero Marra, Daping Fan, Russell Shinohara, Danni Tu, Yen-Yi Ho

Faculty Publications

Advancements in single-cell RNA-sequencing (scRNA-seq) technologies generate a wealth of gene expression data that provide exciting opportunities for studying gene-gene interactions systematically at individual cell resolution. Genetic interactions within a cell are tightly regulated and often highly dynamic in response to internal cellular signals and external stimuli. Evidence of these dynamic interactions can often be observed in scRNA-seq data by examining conditional co-expression changes. Existing approaches for studying these dynamic interaction changes in scRNA-seq data do not address the multi-subject hierarchical design commonly considered in single-cell experiments. In this paper, we propose a Mixed-effects framework for differential Coexpression and transcriptional …

Msw Portfolio, Krystal F. Youngs

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

Using Geomorphic Change And Sediment Modeling To Calculate Debris Flow Volumes From The 2020 El Dorado Wildfire In The Southern San Bernardino Mountains, California, Sevag Injean

Electronic Theses, Projects, and Dissertations

Four years after the occurrence of the 2020 El Dorado Fire, Yucaipa Ridge and the surrounding communities of Oak Glen and Forest Falls still experience the devastation caused by debris flows. Wildfires can instigate a series of events leading to hydrophobic soils, loss of vegetation, and increased sediment availability which amplify post-fire debris flow risks. This study tested the hypothesis that post-wildfire geomorphic changes can be accurately quantified and predicted using high-resolution LiDAR-derived digital elevation models. To investigate this hypothesis, multi-temporal LiDAR datasets were analyzed to quantify geomorphic changes, including erosion and deposition, within two severely burned basins in the …

To Leave Or Not To Leave: Organizational Support Types, Utility And Employee Commitment, Zhe Dong

Electronic Theses, Projects, and Dissertations

Organizational support research has shown it to be a significant predictor of organizational commitment; however, specifying labeling support types and grouping them has rarely been done, let alone the utilization of the supports. In this study, undergraduate students were recruited to investigate how different types of organizational support and their utilization influence organizational commitment (OC), specifically the six types of support groups (monetary/financial, developmental, work-life balance, health and wellbeing, social, recognition, and reward). Using hierarchical regression and moderation analyses, this study examined 1. Whether specific support types predict organizational commitment, 2. Whether specific support types can explain more variance in …

Fact-Checker: A Web Application For Leveraging Large Language Models For Fact-Checking Youtube Videos, Andrew R. Craig

Electronic Theses, Projects, and Dissertations

Fact-Checker is a web application that allows users to fact-check YouTube videos. It feeds YouTube’s closed captioning transcript to a large language model (LLM) to extract claims. It then uses multiple LLMs, such as Gemini, Llama, and Claude, to verify these claims. The modular design makes it easy to change to a different LLM or model if needed. The application is built using Python for access to Application Programming Interfaces (APIs) and Streamlit as the front-end framework. The utilization of Docker and Dockerfiles enables easy distribution and deployment. It enables the application to be deployed on almost any hardware platform …

Medical Surveillance In Custodial Jsas: Preventing Bloodborne Pathogen Exposure, Kiara Gadea

Electronic Theses, Projects, and Dissertations

Custodians play an important role in maintaining our surroundings safe and sanitary. However, in doing so, they are their exposure to health hazards that put them at risk, yet these exposures are often overlooked. One major risk they face is contact with bloodborne pathogens, which put custodial staff at risk for infections such as hepatitis B. While Job Safety Analyses (JSA’s) outline various protective measures, many fail to incorporate medical surveillance as part of their risk management program. Overlooking this important detail leaves custodians vulnerable to health risks that can be prevented.

Adding a medical surveillance section to custodial JSA’s, …

Lgbt+ Poc Well-Being And Resilience, Terra Reynoso

Electronic Theses, Projects, and Dissertations

Historically, both LGBT+ individuals and People of Color have each been subjected to stressors linked to oppression, with those belonging to both groups experiencing a potentially higher degree of distress. This study examined factors that contribute to resilience and well-being in LGBT+ People of Color to highlight potential means to mitigate this distress, guided by queer theory and intersectionality theory in order to provide a relevant framework to inform preliminary research, interview questions, and content analysis. Interviews were conducted with twelve participants with subsequent content analysis revealing the use of social support networks, access to community, productive coping strategies, and …

The Use Of Sludge Content For Effective Recall Of Information, Rahaf G. Fares

Electronic Theses, Projects, and Dissertations

In an age where social media dominates daily consumption, the impact of engaging multi-modal media, specifically “sludge content,” on attention and memory has garnered significant interest. Sludge content, which generally combines unrelated visual gameplay with narrated audio and subtitles, has emerged as a popular form of online entertainment. This study explored whether this type of content enhances information recall by capturing users’ attention, a claim bolstered by theories of optimal arousal, non-pharmacological interventions such as fidget toys, and audiovisual redundancy. Using a within-subjects experimental design, the study investigated the effects of sludge content on effective recall through three conditions: sludge …

E-Leadership Practices And Cultural Intelligence Implementations: Comparative Analysis Between E-Leaders In Higher Education And E-Leaders In Business In The Us, Lubna Alqrawi

Electronic Theses, Projects, and Dissertations

This qualitative comparative case study explored how e-leaders implement subcomponents of Cultural Intelligence (CQ) when interacting with virtual team members from diverse cultural backgrounds or dispersed geographic locations, within both higher education and business contexts. Data were collected from six participants, two from higher education and four from business, based in various locations across the United States. The data were gathered through multiple recorded online interview sessions, and all transcripts were reviewed by the participants for accuracy. The participants were experienced e-leaders, each with three to five years of practice leading virtual teams in culturally diverse environments. The analysis revealed …

Breaking Barriers, Building Realities: Designing A Pedagogically Sound Onboarding Process For Immersive Media Classroom Integration, Esperanza B. Martinez

Electronic Theses, Projects, and Dissertations

As immersive media technologies such as virtual reality (VR), augmented reality (AR), and mixed reality (MR) continue to gain traction in education, the need for a roadmap for educators to adopt these new learning technologies in a manner that enhances student learning increases. This project explores essential elements of an effective onboarding process for extended reality (XR)-enabled learning environments, focusing the recommendations for an anonymous virtual reality lab located at a public, 4-year university in Southern California. The study analyzes interviews from twelve students experiencing VR for the first time under three different onboarding contexts: no onboarding, Meta’s First Steps …

Certified Computation Of Julia Sets Via Numerical Methods, Hannah Kaufman

All Theses

The chaotic and fractal nature of Julia sets makes them difficult to graph. This research aims to provide graphical approximations of Julia sets with known and guaranteed levels of accuracy. We implement three methods to approximate Julia sets with c values chosen from the main cardioid of the Mandelbrot set. Each method utilizes different properties of these Julia sets. The exclusion method makes use of the fact that a Julia set of this type is topologically a circle. Attracting and repelling fixed points are used to find a region on the interior of the Julia set and a region on …

Decision Field Theory For Human-Multi-Robot Collaboration: Human-Centric Decision-Making For Multi-Robot Systems, Ryan Mbagna Nanko

All Theses

At first glance, choosing between an apple and an orange appears to be a straightforward matter of personal taste; however, this seemingly simple preference opens a window into the multifaceted world of decision-making, revealing the complex interplay of cognitive processes, psychological, and behavioral-economic principles that guide our choices \cite{bandyopadhyayRoleAffectDecision2013}. By unpacking these nuanced perspectives, we uncover insights that can drive more effective human-robot interaction and collaboration.

Modeling human cognition requires understanding the evolution of choice utility and the influence of emotions. Decision Field Theory (DFT) stands out by capturing the fluctuating nature in human preferences over time, explaining why choices …

Wires, Roads, And Real-World Challenges: An Interdisciplinary Case Study Bridging Roadway And Electric Utility Design, Juliann A. Lloyd

All Theses

Electric utilities are a foundational component of modern society and depend heavily on civil engineers for planning, design, construction, and maintenance. However, educational content related to this industry is often underrepresented in civil engineering programs. To bridge this gap, a case study activity was implemented in two transportation engineering courses at Clemson University. The case study introduced students to the integration between electric utility infrastructure and roadway design by simulating a realistic and common conflict scenario faced by Departments of Transportation (DOTs) nationwide.

Students were placed in interdisciplinary teams, with each member assigned a specialized role such as Land Agent, …