Digital Commons Network^™

The Importance Of Community: An Investigation Of Stress, Coping, And The Value Of Social Support For First Responders, Brian Reid

Theses and Dissertations

People are designed to be in community with others, to work together and share the load and weight of life. First responders are a community that has not emphasized the importance of social support to mitigate and buffer against the stress inherent in their jobs. This study investigates the sources of stress, coping methods, and social support of first responders. Results from the first study show the impact of workplace and family stress on the first responder is impactful from the beginning. The secondary study finds that adaptive coping methods are the preferred method to cope with stress and that …

The Relationship Between Internal Coherence And Student Learning In High Achieving Middle Schools: A Mississippi Study, Christina Coleman Reynolds

Theses and Dissertations

In order to determine ways in which Mississippi is improving in education, a quantitative research study was designed and conducted to examine ten high achieving middle schools in the state. The 10 schools had to obtain an A ranking or B ranking for the 2021-2022 school year and/or 2022 – 2023 school year from the MDE. The purpose of the study was to determine if relationships existed between the student achievement scores (Reading Proficiency, Reading Growth, Math Proficiency, and Math Growth) assigned by the state to each school and levels of Internal Coherence of the administrators and staff employed in …

Raad-Llm: Adaptive Anomaly Detection Using Llms And Rag Integration, Alicia Russell-Gilbert

Theses and Dissertations

Anomaly detection in complex industrial environments poses unique challenges, particularly in contexts characterized by data sparsity and evolving operational conditions. Predictive maintenance (PdM) in such settings demands methodologies that are adaptive, transferable, and capable of integrating domain-specific knowledge. This work presents RAAD-LLM, a novel framework for adaptive anomaly detection, leveraging large language models (LLMs) integrated with Retrieval-Augmented Generation (RAG). This approach addresses the aforementioned PdM challenges. By effectively utilizing domain-specific knowledge, RAAD-LLM enhances the detection of anomalies in time-series data without requiring fine-tuning on specific datasets. The framework's adaptability mechanism enables it to adjust its understanding of normal operating conditions …

Integrating Case Studies With Meteorologists’ Insight: Assessing Meteorologists’ Perception And Utilization Of Composite Indices, Brianna Marie Salazar

Theses and Dissertations

Meteorologists from sectors, including broadcast, academia, and operations, use derived composite indices such as 0-1km and 0-3km energy helicity index (EHI), effective-layer supercell composite parameter (SCP), fixed-layer and effective layer significant tornado parameter (STP), in addition to other resources, when developing severe local storm forecasts. This study utilizes the Weather Research and Forecasting (WRF) model to create simulations of composite indices for two tornado-producing events: 31 March 2023 and 3 May 1999. With modifications to geographical location, these simulated scenarios are then utilized in the survey to gauge how meteorologists assess where tornado potential is highest. Additionally, a combination of …

Application Of Pu Learning In Detection Of Ddos Attacks, Gagana Sathya Narayana Prasad

Theses and Dissertations

The gcore radar 2024 says, the number of DDoS attacks has been increased by 46% in 12 months. Supervised and unsupervised techniques struggle detecting DDoS attacks due to the scarcity of labeled attack samples and an overwhelming presence of benign traffic. In contrast PU- Learning offers a promising solutions by dividing the data into positive and unlabeled data. This study explores the effectiveness of PU-learning in detecting DDoS attacks by comparing it with unsupervised methods. This method employs PU Bagging, Two Step method and auto-encoder based models to extract meaningful patters from network traffic data, utilizing CICDDoS2017 dataset for evaluation. …

Measuring What Matters: A Policy Analysis Of Statewide Accountability Systems Through The Lens Of College And Career Readiness, Steven Deandre Shadwick

Theses and Dissertations

A disconnect exists between statewide accountability systems and college and career readiness (CCR) outcomes measured by the ACT and SAT. The goal of a statewide accountability system is to enable, implement, and support success for all students in areas that demonstrate high academic achievement through federal- and state-mandated metrics. Under the Every Student Succeeds Act (2015), states have been granted flexibility in how to measure CCR via a number of School Quality and Student Success (SQSS) indicators. Through a quantitative correlational design, data were collected from 44 states with ACT and SAT participation rates ≥ 90%, ≤ 10% or closest …

Design And Evaluation Of A 5g Testbed: Analyzing Security Solutions, Iq Sample Management, And Performance Visualization, Mohammed Saleh Shaik

Theses and Dissertations

The evolution of 5G networks has introduced new opportunities for high-speed, low-latency wireless communication, supporting a wide range of applications from industrial automation to secure data transmission. However, as 5G networks become more complex, ensuring security and maintaining optimal performance present significant challenges. This thesis explores the development of a 5G testbed using Software-Defined Radios (SDRs) and open-source platforms to analyze signal behavior, security implementations, and performance. The testbed, built with the open source srsRAN software library and widely available SDR hardware, serves as a controlled environment for studying 5G communications security features and innovations. To evaluate transmission characteristics, in-phase/quadrature …

Costs And Challenges In The Mississippi Log Trucking Industry, James Tucker Shannon

Theses and Dissertations

Challenges impacting Mississippi log trucking businesses include escalating production costs, labor shortages, aging ownership, and rising liability insurance premiums. These concerns are transmitted back to loggers, landowners, and the entire forest products industry, reducing their contributions to the state’s economy. Lack of current knowledge concerning the adaptation of Mississippi log trucking companies under adverse business conditions necessitated a statewide mixed-mode survey to determine the industry’s structure, the nature of liability insurance premiums, and business owner perceptions about driver hiring and profitability. Mississippi log trucking business owners and drivers were predominantly middle-aged, with fewer individuals under the age of 40. Log …

Impact Of Fertilizer Timing And Cover Crop Establishment Methods On Bedded Soybean Cropping Systems In Mississippi, Grant Madison Shavers

Theses and Dissertations

Mississippi’s agriculture faces challenges from high rainfall, bedded cropping systems, and varying soil testing methods. Many producers apply phosphorus (P), potassium (K), and sulfur (S) in the fall to reduce spring workload and rain-related delays. While fall fertilization raises concerns about yield losses, research indicates minimal differences in soybean (Glycine max L.) yield between fall and spring applications. Raised beds also limit cover crop (CC) establishment despite their potential benefits. We explored strategies to integrate CCs into bedded systems while assessing bed stability and residue management during soybean production. Additionally, Mississippi’s use of two soil nutrient extraction methods highlights the …

Projected Future Reservoir Impairment In The Conterminous United States Following Three Climate Change Scenarios, Darren James Shoemaker

Theses and Dissertations

Anthropogenic climate change has been associated with reservoir aging and reduced ecosystem function. Communities throughout the world depend on reservoirs for services such as hydropower, drinking water, flood mitigation, and recreational opportunities. Though reservoirs were typically constructed to meet human needs, they are now also acknowledged as supporting biodiverse aquatic communities. Reservoir managers are expected to maintain services and biodiversity demanded by diverse users despite high uncertainty surrounding how climate will influence reservoirs through time. Additionally, data describing reservoir function at broad spatial extents are often either unavailable, incompatible between agencies, or prohibitively resource-intensive to obtain. Expert opinion surveys are …

An Exploratory Mixed-Methods Investigation Of Previous Sexual Health Communication Between Lesbian, Gay, Bisexual, Or Queer Young Adults And Their Parents, Haley Elizabeth Solace

Theses and Dissertations

Research suggests parent-child communication about sexual health can promote positive sexual health outcomes (e.g., Estrada-Martinez et al., 2020; Jayne et al., 2021); however, parent-child sexual health conversations are often infrequent and heteronormative (Estes, 2017). Few studies explore sexual health communication between LGBQ youth and their parents. This study explores previous experiences with parent-child sexual health communication between seven LGBQ young adults, aged 18 to 26, and four of their heterosexual mothers, to better understand parent-child sexual health communication and differences between parental-child reflections. Findings suggest LGBQ young adults and parents recall similar experiences, however, perceived discomfort and parental competency differently. …

Does An Adapted Swimming Program Improve Self-Efficacy In Individuals With Intellectual Disability?, Georgia Grace Starr

Theses and Dissertations

BACKGROUND: Short-term adapted swimming programs may improve self-efficacy in individuals with intellectual disability (ID). PURPOSE: We investigated if self-efficacy was improved from the perspectives of swimmers, their parents, and volunteering staff. METHODS: A 5-day program (60 min∙day-1) focused on swim skill development and independence, with each participant supported by a volunteer without disability. Semi-structured interviews were conducted with 5 swimmers (14–35 years, 4 females), 5 parents (40–70 years, all mothers), and 5 volunteers (17–64 years, 4 females). Analysis, using open, structured, and focused coding, highlighted themes aligning with Bandura’s Self-Efficacy Theory (SET)—previous experience, vicarious experience, social persuasion, and feedback—and Self-determination …

Zeroizing Trust In A Naïve Federated Zero Trust Environment, Keith E. Strandell

Theses and Dissertations

The position of the United States on the global stage is predicated on information dominance and the ability to project power through cooperative engagements with mission partners in both wartime and peacetime. Recent cyber-attacks highlighted the need for a more robust cybersecurity posture. As the United States progresses toward the adoption of Zero Trust, it is incumbent on the Department of Defense to assess the impact to the ability to share data across strategic partnerships while securing the data of both the United States and its partners. This paper proposes research into ensuring an environment rooted in Zero Trust and …

Synthetic Data Augmentation For Retinoblastoma Using Diffusion, Andrew Thompson

Theses and Dissertations

Many AI models rely on large and high quality datasets for optimal training. In certain cases, data can be difficult or expensive to obtain, making training difficult. Rare medical conditions are one of these cases. Datasets for retinoblastoma are severely lacking in quantity. Diffusion has been used to create synthetic data in the industrial, medical, and financial domains. By applying the latest Diffusion methods to retinoblastoma, this work seeks to improve predictive model performance on identifying retinoblastoma.

The Role Of K-12 Educators In Shaping Stem Pathways: Examining Social Capital And Self-Efficacy In Stem Education, Holly Trisch

Theses and Dissertations

This dissertation examines the impact of K-12 educators on students’ pathways in STEM (Science, Technology, Engineering, and Mathematics) by focusing on two main factors: the social capital of K-12 and elementary school teachers and the self-efficacy of preservice teachers in STEM education instruction. The first study investigates the social capital of first year engineering students, emphasizing the relationships and resources they gained during their K-12 education that influenced their decision to major in engineering. A quantitative study using survey data collected from first-year undergraduate engineering students indicates that K-12 educators play a crucial role by providing mentorship and resources that …

Estimation Of Soybean Root Traits Using Computer Vision And Deep Learning, Muhammad Usman

Theses and Dissertations

Root phenotyping provides insights into root structure, function, and response to environmental stimuli, aiding researchers in improving crop yields, developing new plant varieties, and enhancing plant health. Traditionally, measuring root traits, such as length and area, is manual, time-consuming, and resource intensive. This study introduces a deep learning-based computer vision method for soybean root segmentation and traits estimation using RGB (red, green, blue) images captured under controlled illumination. A separate web-based application was also developed that can extract the root length and area using RGB images. A diverse set of 3,363 soybean root images was collected using an in-house root …

Work-Life Balance And The Impact Of Covid-19 On Faculty At Historically Black Community Colleges (Hbccs), Taneshia Turner Winston

Theses and Dissertations

This research study was conducted to determine how the COVID-19 pandemic affected the work-life balance of faculty at HBCCs based on their race, gender, age, marital status, and tenure status. The study employed a quantitative research design utilizing Exploratory Factor Analysis (EFA) to conduct time-based activities separately and group perception-based response variables into meaningful categories to uncover patterns. To analyze the differences in race, gender, age, marital status, and tenure status, Regression and Chi-square test analyses were used to evaluate the collected data. Regression analysis explored relationships between time spent on activities and perceptions of stress, productivity, and satisfaction. Chi-square …

Myxozoan Diversity And Life Cycles In Catfish Production Ponds In Mississippi, Usa, Ethan Woodyard

Theses and Dissertations

Catfish aquaculture is a critical industry in the United States and Mississippi in particular. The industry is beset by depredation, rising feed costs, competition with imports, and loss to disease. Chief among these is the myxozoan parasite and causative agent of proliferative gill disease, Henneguya ictaluri. In chapter 2, novel molecular markers for greater resolution in species identification of these parasites are provided, allowing more robust life cycle inference, species-level identifications, and inference of evolutionary relationships through molecular phylogenetic analyses. Chapters 3–5 apply the approaches developed in Chapter 2 to a broad array of taxa beyond catfish-infecting Henneguya spp. These …

Prosodic Pitch And Intensity Patterns In People With Moderate Broca's Aphasia, Juliana Pickard

Theses and Dissertations

People with aphasia (PWA) experience deficits in utilizing prosody, which drastically impacts their communicative effectiveness. The lack of prosody in people with aphasia may alter their ability to nurture meaningful relationships, advance educational and work opportunities, and participate in community activities. This study acoustically evaluates the prosodic characteristics of speech produced by individuals with non-fluent aphasia to better understand how to accurately assess and more effectively treat communication difficulties in PWA. Recorded speech samples derived from a Cinderella story retell from 16 individuals with moderate Broca's aphasia and 16 age-matched controls were acoustically analyzed in this study. The recordings were …

Applications Of The Mathieu Groups And Information Theory In Dna Encoding Functions, Juan C. Nava Jr

Theses and Dissertations

A foundational idea in mathematics lies in breaking down existing components into their bare fundamentals. As evidenced by prime numbers and composites, we learn this idea at an early age. Categorizing these broken-down components into their simplest form allows mathematicians to construct proofs from emergent patterns. John Conway’s Atlas of Finite Groups in the 1990s was particularly concerned with the categorization of structures known as groups. There are certain axioms a group must adhere to, which amount to the retention of symmetry; ultimately a group helps us to better understand symmetric actions performed on a set with a binary operation. …

Mixed Method Approach To Language Allocation Policies For High School English Language Learners, Rhonda Hope Huegel

Theses and Dissertations

This mixed-method sequential exploratory research study aims to describe how New York City High School principals use their language implementation policies to describe their approach to closing the achievement gap for English Learners through three theoretical lenses: transformative leadership, social constructivism, and ethics of care. The study used public data and documents along with principal interviews

The Evolution And Impact Of Blog Analysis Tools: A Study Of Blogtracker's Comprehensive Approach To Digital Discourse Analysis, Oyindamola Koleoso

Theses and Dissertations

This study presents BlogTracker, a comprehensive web-based platform designed to address the growing complexities of analyzing the modern blogosphere. We detail BlogTracker's evolution from earlier blog analysis tools, highlighting its innovative integration of features including real-time data collection, advanced content analysis, sentiment analysis, influence tracking, and narrative analysis. At the core of our contribution is a robust content extraction system that achieves 91.33% accuracy across diverse blog formats, providing a reliable foundation for all analytical functions. This extraction system effectively distinguishes between primary content and peripheral elements, ensuring high-quality inputs for downstream analysis regardless of source blog structure. The platform's …

Modeling Cross-Platform Narrative Templates: A Temporal Knowledge Graph Approach, Ridwan Amure

Theses and Dissertations

Over the past decade, social media platforms have rapidly evolved in scale, functionality, and user engagement, encouraging individuals to maintain active presences across multiple networks. This complex, interconnected ecosystem has also enabled information actors to exploit cross-platform dynamics to amplify the reach of their content and strategically target diverse audiences. Recognizing the persistence and adaptability of such actors, this research emphasizes the need for robust models that can effectively capture and analyze cross-platform narrative diffusion. To this end, we propose a framework that utilizes temporal knowledge graphs to model the evolution and relationships among narratives across platforms. We extract temporal …

Decoding Symbolic Influence On Youtube Engagement, Emotion Resonance And Trust In Information Campaigns, Diwash Poudel

Theses and Dissertations

This study examined how symbolic images in YouTube videos influences viewers’ emotions, trust, and engagement with political content online. Approximately 2,000 videos were collected and analyzed, with a focus on both thumbnails and standout frames. The findings revealed that cultural symbols were particularly effective at capturing attention and evoking strong emotional reactions—especially anger and disgust. Notably, these same symbols also enhanced viewer trust, making audiences less susceptible to misinformation. Statistical tests confirmed that these effects were consistent and significant. To ensure the validity of these results, additional analyses were conducted to assess potential biases in YouTube’s recommendation algorithm, as well …

Voices In The Borderlands: Reimagining Identity, Cultural Belonging, And Dystopian Spaces In Anzaldúa’S Borderlands And Viramontes’S “The Cariboo Café”, Oralia G. Ramos

Theses and Dissertations

This thesis explores how Gloria Anzaldúa’s Borderlands/La Frontera (1987) and Helena María Viramontes’ short story “The Cariboo Café” (1985) portray marginalized individuals navigating liminal spaces of identity, oppression, and survival. Borderlands/La Frontera and “The Cariboo Café” show how systematic violence and displacement shatter the self, pushing characters to navigate trauma in a dystopian space. Sonya, Macky, the café owner, and the grieving mother represent Anzaldúa’s concepts of borderland subjectivity, betrayal, and spectral haunting.

Sonya and Macky, two undocumented children, represent Anzaldúa’s borderlands subjects and reside in a state of nepantla, an in-between space of cultural dislocation. The café owner …

Sustainable Process Valorization For Bioactives From Invasive Plants Environmental Burden And Their Efficacy As Antimicrobial Agents, Shamprasad Br

Theses and Dissertations

Agri-food industries produce large quantities of fruit waste which are usually discarded and one such major beverage juice waste is Citrus waste. Likewise, invasive plants like Prosopis juliflora, which is richly distributed across Tamil Nadu, are underutilized for secondary metabolites/bioactives isolation. Halophytes are another rich source of bioactives present around mangrove forests and distributed in the salt rich marshy land.

1. Separation of phenylpropanoids from the Citrus waste through solvent extraction and pH-assisted precipitation was developed. The PPCM precipitated (phenylpropanoids form Citrus medica) were analysed by HPTLC and were found to contain Rutin, Naringin, Quercetin-3-beta-glycoside, Chlorogenic acid, Ferulic acid and optimization …

Redefining Roles In Displacement: The Asylum Journey Of Sudanese Women In Faisal, Cairo, Majeda Abdin Mahasneh

Theses and Dissertations

This study examines how Sudanese refugee women, who arrived in Faisal, Cairo, after April 2023 experience gender-based violence (GBV). The research investigates the types of GBV these women encountered during their journey from Sudan to Cairo, how their gender roles changed in the asylum context, and their vision for the future regarding safety and support. A qualitative approach was employed, using in-depth interviews with four Sudanese refugee women, complemented by field notes and observations made during visits to the Faisal neighborhood. The analysis focused on the personal stories shared by the women, highlighting the various forms of violence they experienced, …

‘Good Old John Decker’: Confronting Entrepreneurial Challenges In The Mid-Nineteenth Century Rio Grande Borderlands, Grace C. Maciel

Theses and Dissertations

ABSTRACT

'Good Old John Decker': Confronting Entrepreneurial Challenges In The Mid-Nineteenth Century Rio Grande Borderlands (May 2025)

Grace C. Maciel, M.A., Texas A&M International University

Chair of Committee: Dr. Jerry Thompson

This thesis presents the first scholarly study of John Decker, a French-born immigrant whose rise as a merchant and civic figure in the 19th-century U.S.–Mexico borderlands offers a compelling case of adaptability, resilience, and immigrant success. Settling in Rio Grande City and Camargo, Tamaulipas, Decker built a lasting presence during a period marked by regional volatility, navigating war, revolution, and economic transformation. His story is explored across five chapters, …

Biogenic Synthesis Of Metallic And Bimetallic Oxide Nanoparticles For Water Treatment Applications, Gunarani G.I

Theses and Dissertations

Access to clean water is a quality-of-life indicator. The availability of clean water apart from water scarcity is marred due to contamination by heavy metals and synthetic dyes, posing a grave environmental and public health challenge. This necessitates the implementation of advanced and sustainable treatment solutions towards water remediation. This research work focusses on the fabrication and application of biogenic and chemically synthesized metallic and bimetallic nanoparticles for the efficient removal of uranium, chromium, and toxic dyes from aqueous environments. The study particularly focuses on zero-valent (C-Fe and B-Fe) and bimetallic (C-NiFe and B-NiFe) nanoparticles, evaluating their adsorption capabilities and …

Pausing Patterns Across Speech Tasks In Individuals Diagnosed With Broca's Aphasia, Kate Low

Theses and Dissertations

The purpose of this study was to investigate whether individuals with moderate Broca's aphasia exhibit different pause duration and frequency patterns compared to individuals without neurological disorders, as well as to explore how speech task type influences pause patterns. A total of 16 participants (eight male and eight female) previously diagnosed with moderate Broca's aphasia and apraxia were included in this study, along with 16 age- and gender-matched control participants. Speech recordings from the 16 participants were sourced from the AphasiaBank database. Speech samples from four different task types (i.e., interview, personal narrative, picture description, and story retell) were analyzed …