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Full-Text Articles in Entire DC Network
Media Disparity? Analyzing The Media Coverage Of Violent Vs. Non-Violent Crimes In Central Arkansas, Alicia Dorn
Media Disparity? Analyzing The Media Coverage Of Violent Vs. Non-Violent Crimes In Central Arkansas, Alicia Dorn
Theses and Dissertations
The media's disproportionate coverage of violent crimes compared to non-violent crimes may create a skewed public perception of crime rates and safety in Central Arkansas, potentially influencing policy decisions and community relations. This research examines whether news outlets in Central Arkansas cover violent crimes more frequently than non-violent crimes and compares this coverage to actual crime statistics from law enforcement agencies. The study aims to understand the potential impact of media representation on public perception of crime. The study employed a mixed-methods content analysis of three major Central Arkansas newspapers (Arkansas Democrat-Gazette, Pine Bluff Commercial, and Hot Springs Sentinel Record) …
Space Utilization Optimization, Troy D. Rockwood
Space Utilization Optimization, Troy D. Rockwood
Theses and Dissertations
Outer space is a crucial and increasingly leveraged resource for advancing human quality of life; however, its utility is constrained by inherent physical and spectral limitations. This thesis examines two distinct resource optimization problems critical to the sustainable development of space. The first part of this work addresses the optimization of physical orbital space. Unlike a terrestrial resource, mismanagement of this orbital space can lead to a runaway cascade of collisions, destroying the utility of entire orbital regimes. This thesis proposes a conjunction metric to quantify orbital capacity based on Keplerian parameters. We develop a computational tool to measure and …
A New Model For Predicting Two-Zone Parameters Based On Geometric Modifications In Computational Fluid Dynamics Simulations, Jason B. Metten
A New Model For Predicting Two-Zone Parameters Based On Geometric Modifications In Computational Fluid Dynamics Simulations, Jason B. Metten
Theses and Dissertations
This study uses Computational Fluid Dynamics (CFD) to create a new and improved model for key Two-Zone modeling parameters, 𝜒 and 𝛿2𝑝. It explores how geometric changes to centrifugal compressors impact these modeling parameters. While centrifugal impellers are an important part of many systems, the flow through such impellers is inherently complex, making performance often difficult to predict. There are many approaches for modeling this complex flow environment, one method being the Two-Zone model developed by Dave Japikse. Values for 𝜒 and 𝛿2𝑝 are often determined from data obtained from test rigs or correlations. In this study high-fidelity CFD simulations …
The Effects Of Bullying Victimization And Bullying Perpetration On Academic, Social, And Emotional Self-Efficacy Among Adolescents, Amber Crenshaw
The Effects Of Bullying Victimization And Bullying Perpetration On Academic, Social, And Emotional Self-Efficacy Among Adolescents, Amber Crenshaw
Theses and Dissertations
Bullying remains a persistent challenge in schools and has been linked to diminished perceptions of capability across multiple domains. This quantitative, cross-sectional study examined how bullying victimization and bullying perpetration relate to domain-specific self-efficacy, academic, social, and emotional, among students in grades 4-12 in the southern United States. Students (N = 81) completed the Adolescent Peer Relations Instrument (APRI-BT) measuring victimization and perpetration across verbal, social, and physical behaviors. Students also completed the Self-Efficacy Questionnaire for Children (SEQ-C) measuring domain-specific self-efficacy. Analyses included descriptive statistics, internal consistency estimates, bivariate correlations, and hierarchical multiple regressions. Moderation by parental education and socioeconomic …
Barriers To Higher Education In Mississippi Prisons: A Systematic Literature Review And Policy Analysis, Ashley Elizabeth Weathers
Barriers To Higher Education In Mississippi Prisons: A Systematic Literature Review And Policy Analysis, Ashley Elizabeth Weathers
Theses and Dissertations
Higher education in prison reduces recidivism and improves reentry outcomes, yet Mississippi’s prison education programs remain underdeveloped due to financial constraints, policy challenges, and systemic barriers. While national research on prison education is expanding, Mississippi-specific policy evaluations remain limited. This capstone employs a desk-based research methodology, integrating a systematic literature review and policy analysis to examine these challenges. The study synthesizes recent research on the impact of prison education, funding limitations, and policy frameworks, addressing a critical gap in state-specific policy evaluation. The policy analysis evaluates Mississippi’s correctional education policies and funding mechanisms, using Southwest Mississippi Community College’s (SMCC) Prison …
Anxiety, Stress, And Depression As A Predictor Of Established Vaping Among High School Students, Autumn Schneider
Anxiety, Stress, And Depression As A Predictor Of Established Vaping Among High School Students, Autumn Schneider
Theses and Dissertations
Previous research has linked initiation of e-cigarette use with mental health but has not identified how mental health factors impact patterns of use of these products in adolescents. I tested the hypothesis that adolescents who report vaping to cope with stress, depression, and anxiety have more established patterns of use with data from the National Youth Tobacco Survey. Crosstabulations and logistic regression outcome measures included current use, intensity of use, and cumulative lifetime use. Reasons for initial and current use related to mental health were associated with current e-cigarette use, more intense use, and higher cumulative use. Mental health plays …
Understanding Acceptance Capacity And Intentions Of Mississippians To Participate In The Conservation And Management Of Black Bears In Mississippi, Basant Pant
Theses and Dissertations
This dissertation explores the acceptance capacity of Mississippians towards black bears (Ursus Americanus), and their intentions to participate in their conservation and management. It intends to bridge the theory and application of wildlife acceptance capacity among three main objectives. First, a systematic literature review of journal articles employing the Search, Appraisal, Synthesis and Analysis (SALSA) method revealed the development phase of Wildlife Acceptance Capacity (WAC)-conceptual phase (1988 -2000) and applied phase (post 2000), highlighting the strong scholarly collaboration among high human development index (HDI) countries with limited collaboration with the low HDI countries. Second, a mail survey of 4,080 Mississippi …
Nuclear Transparency Of Photoproduced Rho-0 Mesons., Bhesha Raj Devkota
Nuclear Transparency Of Photoproduced Rho-0 Mesons., Bhesha Raj Devkota
Theses and Dissertations
Photonuclear reactions using a real photon beam offer a unique opportunity to explore fundamental aspects of QCD within the nuclear medium. The experiment E12-19-003, conducted at Jefferson Lab’s Hall D in 2021, aimed to look for the transition from hadronic to partonic degrees of freedom and to explore the predicted QCD phenomenon known as color transparency in photons, mesons, and baryons. A key objective was to examine the transition of the photons from a resolved (hadronic fluctuation) configuration to a point-like electromagnetic probe. The experiment utilized liquid deuterium, helium, and carbon foils as target nuclei, which were probed by photon …
Netflix And Kill: The Role Of True Crime Consumption In The Development Of Acquired Capability For Suicide, Chandler Jayne Mcdaniel
Netflix And Kill: The Role Of True Crime Consumption In The Development Of Acquired Capability For Suicide, Chandler Jayne Mcdaniel
Theses and Dissertations
The Interpersonal-Psychological Theory of Suicide (IPTS) identifies acquired capability as a key factor contributing to suicidal behavior. Previous research has shown that violent media exposure can increase suicidal risk through desensitization, imitation, and trauma activation. However, little is known about the role of true crime consumption (TCC), a popular form of violent media engagement, in relation to IPTS constructs. This study examined whether TCC predicts acquired capability for suicide, perceived burdensomeness, and thwarted belongingness. A total of 215 participants were retained after data cleaning. Hypotheses predicted that higher TCC would be associated with higher acquired capability (H1), that TCC would …
‘Cog In The Machine’ Or Social Being? How Digital Communications Affect Social Capital Development In Higher Education Institution Workplaces., Daphne Abigail Knox
‘Cog In The Machine’ Or Social Being? How Digital Communications Affect Social Capital Development In Higher Education Institution Workplaces., Daphne Abigail Knox
Theses and Dissertations
The purpose of this research is to investigate the impact of digital communications on social capital development within the workplace in public institutions of higher education. While previous literature recognizes the potential implications of the internet on areas like social capital (Putnam, 2000; 2020) and formal and informal communications in organizations (Simon, 1997), an in-depth understanding of how modern digital communications impact social capital development is still necessary to address the gap in literature and to analyze the impact of digital communications on the development of organizational social capital. The potential implications of this work on scholarly research include expanding …
Spectral Methods And Wavelets In Quantitative Finance Problems, Davood Damircheli
Spectral Methods And Wavelets In Quantitative Finance Problems, Davood Damircheli
Theses and Dissertations
This dissertation leverages advanced spectral methods and wavelet techniques to address complex quantitative finance models, enhancing the computation of financial derivatives and risk assessments. Building on foundational studies, this research extends these methods to broader, intricate financial contexts. The first section explores fractional-order generalized Chebyshev wavelets (FOCW) applied to fractional advection equations, relevant in both mathematics and physics. Using a regularized beta function to compute the Riemann-Liouville fractional integral operator, this study introduces a novel numerical scheme with robust accuracy, confirmed through error analysis and empirical tests. The second part examines the fractional Black-Scholes equations for option pricing under subdiffusive …
Study Of Insect Frass-Associated Microbiome On Plant Growth And Their Potential Use As Biofertilizer, Jasmine Sahota
Study Of Insect Frass-Associated Microbiome On Plant Growth And Their Potential Use As Biofertilizer, Jasmine Sahota
Theses and Dissertations
An increasing global food demand and the urgent need for sustainable agricultural practices have driven interest in insects as alternative feed and food sources. Insect frass, a by-product of insect rearing, represents a rich organic carbon source with diverse microbes that can enhance soil health and promote beneficial plant-microbe interactions. This study characterized the bacterial (16S-V4) and fungal (ITS2) microbiomes of frass from Black Soldier Fly (BSF) and Cricket species and evaluated their effects on maize (Zea mays) growth. Four frass variants were applied at rates of 56-280 kg ha⁻¹ in a pot experiment with untreated soil and mineral fertilizer …
Toward Approachable Reinforcement Learning: Using Dataflow Application And Large Language Models For Human-Understandable Policies, Joel Thomas Huber
Toward Approachable Reinforcement Learning: Using Dataflow Application And Large Language Models For Human-Understandable Policies, Joel Thomas Huber
Theses and Dissertations
Optimal decision-making under uncertainty is a challenge in everything from board games to business scenario planning. With visual programming systems, end-users can utilize reinforcement learning (RL) agents to identify an optimal policy in their own stochastic environments. However, while the RL agent can demonstrate that an optimal policy exists, RL polices tend to be opaque and difficult to interpret. This thesis investigates how Large Reasoning Models (LRMs) can generate human-understandable rules from RL policies. I compare multiple approaches and models, varying the format of the RL policy provided to the LRM as well as the prompting strategy. My results show …
Responding To The Urban Canvas: Murals, Preservation, And Placemaking In Meridian, Ms, Katy Kemalyan
Responding To The Urban Canvas: Murals, Preservation, And Placemaking In Meridian, Ms, Katy Kemalyan
Theses and Dissertations
Public murals that depict elements of local culture and history are a creative placemaking tool increasingly used by preservationists invested in the revitalization of their historic districts. As this trend rises, it becomes necessary for preservationists to ask what should be painted, restored, or left alone? Research on public murals neglects Southern mid-sized towns, considerations of existing murals, and historic architecture used as substrates. Rectifying this omission and employing geographic surveys and stakeholder interviews, this study seeks to expand which genres of murals are considered for their creative placemaking value. Normally distinguished primarily by source in literature, community murals, ghost …
The Need For Policy Pathways To Phone-Free Schools: A Desk-Based Analysis For A Rural K-12 District, Kelsey Upton
The Need For Policy Pathways To Phone-Free Schools: A Desk-Based Analysis For A Rural K-12 District, Kelsey Upton
Theses and Dissertations
This capstone project addresses the growing concern over mobile device use in secondary schools by analyzing the implications of implementing a comprehensive mobile device restriction policy. While many schools maintain cell phone policies, inconsistent enforcement reduces their effectiveness, leading to ongoing challenges such as decreased student attention, diminished face-to-face interactions, and increased mental health concerns. Guided by the Adapted Policy Analysis Triangle Framework, this study uses a qualitative, desk-based policy analysis approach to examine existing literature, district policy documents, and publicly available case studies of schools that enact mobile device restriction measures. The analysis evaluates how such policies are designed, …
Equity By Design: A North Glenn High School Equitable Practices Policy Guide, Kelli Andrews Jarrett
Equity By Design: A North Glenn High School Equitable Practices Policy Guide, Kelli Andrews Jarrett
Theses and Dissertations
This capstone project addresses equity gaps in dual enrollment programs in Mississippi, with a focus on North Glenn High School, a pseudonym for a high-poverty rural school. While dual credit opportunities have expanded statewide, disparities remain for first-generation, low-income, and minority students. A significant barrier is Mississippi’s reliance on ACT benchmarks for eligibility, which disproportionately excludes marginalized groups. The study examines the potential of the Pre-ACT in grades 9 and 10 as an early diagnostic tool to identify readiness gaps and inform targeted interventions before students take the ACT. Grounded in Bronfenbrenner’s Ecological Systems Theory and the Dual Enrollment Equity …
Rapid Kinetic Fluorogenic Quantification Of Malondialdehyde In Ground Beef, Keshav Raj Bhandari
Rapid Kinetic Fluorogenic Quantification Of Malondialdehyde In Ground Beef, Keshav Raj Bhandari
Theses and Dissertations
Presented herein is rapid kinetic fluorogenic method to quantify malondialdehyde (MDA) in ground beef, utilizing 2-thiobarbituric acid (TBA) as the fluorogenic probe. This assay significantly shortens the total analysis time, from sample preparation to data acquisition, to just six minutes presenting a major advancement over traditional methods that typically require two hours and multiple instruments. The assay’s robustness against matrix interferences was validated using sample volume variation and standard addition calibration methods. Additionally, the effects of ambient exposure to air, washing, and cooking on MDA content in raw ground beef were quantified. While both ambient exposure to air and cooking …
Spatiotemporal Ecology Of Mycobacterium Ulcerans And Mycolactone Functions In French Guiana And Southeastern United States Aquatic Environments, Magdalene Dogbe
Spatiotemporal Ecology Of Mycobacterium Ulcerans And Mycolactone Functions In French Guiana And Southeastern United States Aquatic Environments, Magdalene Dogbe
Theses and Dissertations
Mycobacterium ulcerans, the causative agent of Buruli ulcer, produces mycolactone, a polyketide toxin traditionally studied for its role in human pathogenesis. This dissertation presents a comprehensive spatiotemporal analysis of M. ulcerans and mycolactone producing mycobacteria (MPM) ecology in the Americas and also reveals mycolactone's role in the environment as a microbial community regulator. Through comparative studies in French Guiana (endemic) and the southeastern United States (non-endemic), combined with experimental microcosm investigations, this research contributes to environmental pathogen ecology understanding. Environmental surveillance across 2,226 samples from French Guiana revealed complete MPM restriction to freshwater environments, with zero detections from 1,226 coastal …
Physics-Informed Neural Network For Maximum Detectable Distance Estimation In Mobile Gamma Spectrometry, Nancy A. Ibrahim
Physics-Informed Neural Network For Maximum Detectable Distance Estimation In Mobile Gamma Spectrometry, Nancy A. Ibrahim
Theses and Dissertations
Accurate estimation of the Maximum Detectable Distance (MDD) is critical for environmental remediation, nuclear incident response, and public safety. Conventional approaches assume stationary detectors and rely on computationally intensive simulations, limiting their applicability for mobile, real-time surveys. Mobile gamma spectrometry introduces additional complexities due to detector motion, variable acquisition times, and heterogeneous backgrounds. This study addresses the central question of how effectively a Physics-Informed Neural Network (PINN) can estimate MDD for mobile gamma spectrometry, while maintaining both accuracy and computational efficiency under dynamically changing environmental conditions. A multi-phase approach was employed, combining field data collection, computational modeling, and operational tool …
The Social In The Spiritual: Non-Theistic Spirituality In 12-Step Addiction Recovery, Steph Jacobs
The Social In The Spiritual: Non-Theistic Spirituality In 12-Step Addiction Recovery, Steph Jacobs
Theses and Dissertations
To investigate whether Western-raised Narcotics Anonymous (NA) members engage in non-theistic spirituality and non-humanist modes of sociality with non-human beings, I conducted six qualitative interviews and a small-scale survey within a Vancouver NA community. The majority of participants practice non-theist spirituality, and three interviewees relate to non-humans in ways not accounted for by Western humanism. Findings suggest that connection and sociality are intrinsically woven into recovery and well-being. This research opens conversations about non-theistic spirituality in NA recovery, non-human sociality and healing, processes of ontological negotiation, and the entanglement of spirituality, sociality, and well-being. Through daily practices of exploration and …
A Tale Of Four Cities: The Effect Of Job Specialization On Employee Turnover Within Mississippi’S Local Police Departments, Wesley Bunch
A Tale Of Four Cities: The Effect Of Job Specialization On Employee Turnover Within Mississippi’S Local Police Departments, Wesley Bunch
Theses and Dissertations
Unusually high employee turnover among local law enforcement officers in the United States has been well documented. This exploratory case study examines employee turnover from a bilateral perspective of both generalists and specialists within local police departments. The purpose of this study is to determine if working in a specialized unit has any effect on employee turnover amongst local police officers in Mississippi. This study used qualitative methods to conduct interviews with thirty-four officers from four different police departments encompassing Mississippi’s northern, southern, eastern, and western regions. The interviews were conducted with individuals at the rank of officer and having …
Dem Simulations For Tractive Performance Of Rigid Wheel In Granular Media, Aidan Noah Dickerson
Dem Simulations For Tractive Performance Of Rigid Wheel In Granular Media, Aidan Noah Dickerson
Theses and Dissertations
Accurately predicting vehicle mobility in granular media is essential for evaluating off-road mobility in agriculture, defense, and planetary exploration. Traditional empirical models often fail in capturing complex micromechanics of soil deformation, especially under dynamic conditions such as high slips and maneuvering. This study demonstrates the value of the discrete element method (DEM) in modeling wheel-soil interactions with higher fidelity. Using Altair EDEM and pre-calibrated GEMM materials, simulations were conducted for a range of forward (-5.9% to 54.8%) and side slip angles (3°, 6°, 12°) in dry sand. DEM enabled detailed analysis of sinkage, traction forces, and lateral loads, revealing trends …
Electrospun Nanofiber Creation With Varying Polymer-Solvent Combinations For Air Filtration, Lancaster Jace Hill
Electrospun Nanofiber Creation With Varying Polymer-Solvent Combinations For Air Filtration, Lancaster Jace Hill
Theses and Dissertations
This study aims to analyze various polymer-solvent combinations for electrospun creation of nanofiber media and to determine the best-suited solution for lab-grade electrospinning. Suitable solutions allow for controlled morphology of fiber diameters and for efficiency of media creation. The principal variables are solvent, concentration, and voltage. Humidity and temperature play a secondary variable role. The solution must withstand an electric field of ≤30 kV and be insoluble in water to maintain desired morphology and structure. Manipulation of the solutions and variables allow for fiber diameter optimization and beading minimization. High temperature filter applications require efficiency in intense heat and preservation …
Toward A Unified Network Flow Framework: From Conservation Principles To Fluid Dynamics Models, Zonghan Zhang
Toward A Unified Network Flow Framework: From Conservation Principles To Fluid Dynamics Models, Zonghan Zhang
Theses and Dissertations
Network flows govern a wide range of critical systems, from tangible infrastructures like transportation and power grids to replicable processes such as information spread and epidemics. While tangible flows obey conservation laws and physical constraints, replicable flows, like rumors or viruses, can grow, decay, or vanish unpredictably. Despite their increasing interaction in real-world settings, these flow types are typically modeled in isolation, using disconnected mathematical frameworks. This dissertation presents a unified modeling approach that bridges the gap between conserved and replicable flows by embedding principles from fluid dynamics into graph-based propagation models. I introduce physically informed extensions to classical models, …
Multiple Baseline Single-Case Study: Narrative Resiliency Intervention For Couples With Adverse Childhood Experiences, Emma Elizabeth Allen
Multiple Baseline Single-Case Study: Narrative Resiliency Intervention For Couples With Adverse Childhood Experiences, Emma Elizabeth Allen
Theses and Dissertations
A multiple baseline single case study design was used to examine the effects of a narrative and resiliency-based intervention for couples with adverse childhood experiences (ACEs). Using piecewise multilevel modeling (MLM), the study evaluated changes in depressive symptoms, dyadic coping (DCI), and growth and empowerment measure (Emotional Empowerment Scale [EES-14] and 12 Scenarios [12S]) across waitlist and treatment phases. Five couples (10 individuals) participated in up to 17 waves, with staggered baseline and treatment lengths across dyads. Results indicated significant fixed effects of the 12S subscale for growth and empowerment during the treatment phase. There were no statistically significant fixed …
Power Resilience In Utah's Water Sector: A Survey Of Stakeholder Practices, Preferences And Potential, Tyler Christopher Peterson
Power Resilience In Utah's Water Sector: A Survey Of Stakeholder Practices, Preferences And Potential, Tyler Christopher Peterson
Theses and Dissertations
Drinking water and wastewater services are vulnerable to disruptions because they rely heavily on the electric grid. As a result, power outages can lead to water outages, creating cascading failures that compromise sanitation, firefighting, healthcare, and daily routines. Although an important topic, there are little to no studies of water and wastewater power resilience at a geographic or state level. In this study we investigate the extent of existing backup power and renewable energy integration as well as the motivations and barriers around their power resilience. We collect our data through semi-structured interviews with staff at 19 urban and rural …
The Impact Of Social Factors On Vagally Mediated Parasympathetic Activity, Andrew Scot Proctor
The Impact Of Social Factors On Vagally Mediated Parasympathetic Activity, Andrew Scot Proctor
Theses and Dissertations
Loneliness and social disconnection are recognized risk factors for morbidity and mortality, yet the psychophysiological pathways remain contested. This dissertation examines how social factors relate to vagally mediated parasympathetic activity indexed by heart rate variability (HRV) and tests whether conversational interventions with a human or a large-language-model (LLM)-based companion can acutely reduce loneliness and enhance connection. Across two university sites (BYU, UCSD), N=297 participants (18-27 years) were randomized to (a) a reciprocal self-disclosure conversation with a trained human confederate, (b) a parallel, vocalized LLM chatbot conversation, or (c) a non-social, vocal reading control. Resting HRV (RMSSD, SDNN, HF-HRV) was recorded …
Experimental And Theoretical Characterization Of Molten Salt Thermal Conductivity, Jacob C. Numbers
Experimental And Theoretical Characterization Of Molten Salt Thermal Conductivity, Jacob C. Numbers
Theses and Dissertations
Molten salts form an ideal heat transfer fluid for advanced energy generation systems, including molten salt reactors (MSR). Accurate characterization of molten salt thermal conductivity is needed to confidently predict transient thermal behavior and optimize salt properties. Measurements are hindered by salts' challenging material properties, which---in the case of the needle probe device---induced unaccounted physical changes that limited its accuracy and repeatability. Sparse thermal conductivity data in general is exacerbated by a limited fundamental understanding of molecular energy transfer in liquids. This work extends the experimental capacity for compositional studies using the needle probe and proposes a theoretical model for …
Exploring The Potential Of Artificial Intelligence To Improve The Journal Peer Review Process, Eliza Fanny Bondah
Exploring The Potential Of Artificial Intelligence To Improve The Journal Peer Review Process, Eliza Fanny Bondah
Theses and Dissertations
Academic publishing depends on the peer review process to guarantee quality, scholarly rigor, and credibility, but the traditional peer review system receives mounting criticism because of its inefficient operations, biased judgments, and irregular standards. This study explores how artificial intelligence (AI) can improve journal peer review systems to solve a variety of issues, including reducing reviewer exhaustion, minimizing bias, improving consistency, and accelerating the review process. Current literature shows AI as a promising yet controversial solution, which may provide structured feedback with improved consistency and efficiency. Our study examined 52 human reviews together with 26 AI-generated reviews from EdTechnica--An Open …
Bayesian Alignment Prior To Connectionist Temporal Classification Loss, Lawry Sorenson
Bayesian Alignment Prior To Connectionist Temporal Classification Loss, Lawry Sorenson
Theses and Dissertations
We propose revisions of Connectionist Temporal Classification (CTC) loss and forced alignment to support longer input sequences. CTC loss is normally used for training in speech and handwriting recognition tasks when the labels are not fully aligned with the data, while forced alignment is a downstream task that finds the optimal path for segmentation purposes. The current implementations consider all possible alignments between the input and label, which grows exponentially with the size of the input. We show that in cases when silence is removed and speaking rate is consistent, the true alignment is a mostly straight line across time …