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Spatial Ecology And Population Dynamics Of Chukar Partridge, Jacob Taft Barnes
Spatial Ecology And Population Dynamics Of Chukar Partridge, Jacob Taft Barnes
Theses and Dissertations
Chukar (Alectoris chukar) are a non-native bird that has naturalized in North America following its introduction over a century ago. Today, the species supports hunting opportunities in 11 U.S. states and one Canadian province. Despite its wide distribution and recreational value, key aspects of chukar ecology remain poorly understood. Limited information is available on the species' spatial ecology, including patterns of space use. Likewise, information regarding the influence of weather on population dynamics of chukar has not been formally conducted. As part of our investigation, we evaluated the space use of chukar in western Utah, USA utilizing GPS transmitters (Chapter …
Modeling Network Growth Via Generalized Isospectral Reductions, David Thomas Litster
Modeling Network Growth Via Generalized Isospectral Reductions, David Thomas Litster
Theses and Dissertations
Many real-world networks also exhibit a variety of symmetries. In this thesis we study equitable partitions and isospectral reductions, both of which are generalizations of symmetries. We formalize the relationship between these two types of generalized symmetry through the study of invariant subspaces. We then use recent results about the presence of equitable partitions in real-world networks to develop a network growth model that introduces similar structures, thereby introducing symmetries similar to those in real world networks.
Intrinsic Stability Of Controlled Systems Via Gershgorin-Type Estimates, David Friedbaum
Intrinsic Stability Of Controlled Systems Via Gershgorin-Type Estimates, David Friedbaum
Theses and Dissertations
Time delays are an inherent feature of real-world dynamical systems, arising whenever information, matter, or energy requires non-negligible time to propagate. Even small delays can destabilize systems that are otherwise well behaved, yet most standard control designs--such as PID or LQR--do not explicitly account for them and may fail when delays are present. This thesis investigates the stability of controlled dynamical systems subject to arbitrary time delays and develops new tools to determine when such systems remain stable. Our approach builds on the notion of intrinsic stability, a strong form of global stability introduced by Webb and Bunimovich, which guaranties …
Characterizing Temperature-Dependent Properties Of Fat For Improving High Intensity Focused Ultrasound Simulations, Brian Easthope
Characterizing Temperature-Dependent Properties Of Fat For Improving High Intensity Focused Ultrasound Simulations, Brian Easthope
Theses and Dissertations
High-intensity focused ultrasound (HIFU) is a non-invasive therapeutic technique that relies on the precise delivery of acoustic energy to ablate diseased tissue. The presence of subcutaneous fat can significantly alter focal accuracy and treatment efficiency due to its distinct thermal and acoustic behavior. This study characterized the temperature-dependent thermal conductivity, thermal diffusivity, specific heat capacity, acoustic attenuation, and acoustic velocity of human subcutaneous fat to improve pretreatment modeling for HIFU therapies. Measurements were performed using a dual needle probe for thermal conductivity and diffusivity, differential scanning calorimetry for specific heat capacity, radiation force balance for attenuation, and through-transmission methods for …
Game-Theoretically Optimal Strategies In Baseball, William Michael Melville
Game-Theoretically Optimal Strategies In Baseball, William Michael Melville
Theses and Dissertations
Baseball players and their managers make numerous decisions that can have a significant effect on the result of the game. The effectiveness of their decision-making strategies depend on the strategies played by their opponents. For example, throwing a first-pitch fastball down the middle is a good strategy against a hitter who always takes the first pitch, but it is a risky strategy against a hitter who likes to swing at the first pitch and who is good at hitting fastballs. Additionally, any payoff a player receives from playing a strategy comes at the expense of their opponent. A batter cannot …
Play-Based Assessment Of The Cardinal Principle, Allyssa Sonnefeld Leavitt
Play-Based Assessment Of The Cardinal Principle, Allyssa Sonnefeld Leavitt
Theses and Dissertations
Gelman and Gallistel (1986) determined five counting principles that are essential for successful counting, including the cardinal principle where children understand that the last number counted represents the quantity of a set of objects. The traditional How many? task and the Give-n task are the most common tasks that have been used to assess whether children understand the cardinal principle. However, many researchers claim that these tasks either overestimate or underestimate children's understanding of the cardinal principle. Some researchers (Baroody & Pellegrino, 2023) suggest that embedding the traditional How many? task in a game may improve its validity. In this …
Rab32c Mediates Osmoregulation And Calcium Homeoastasis In Dictyostelium Discoideum, Ashley Esparza
Rab32c Mediates Osmoregulation And Calcium Homeoastasis In Dictyostelium Discoideum, Ashley Esparza
Theses and Dissertations
Vesicular trafficking is a fundamental process essential to cell viability and dictates roles in both cellular and tissue function in multicellular organisms. To further understand various vesicular trafficking processes, our lab focuses on the moderators of these processes, Rab GTPases, using the model organism Dictyostelium discoideum. This dissertation focuses explicitly on the uncharacterized protein Rab32C, a homolog of human Rab32. While several Rab family members have been well defined, the functionality of Rab32C remains poorly understood. This project investigated both the subcellular localization and functional role of Rab32C with biochemical, imaging, and molecular assays. Results from this study provide evidence …
Plant Preservation: The Contribution Of Bacteriophage And Transposons To Pathogenic Xanthomonas Evolution, And The Demographic And Reproductive Analysis Of Castilleja Parvula, Ciara A. Green
Theses and Dissertations
Plant preservation, whether through disease research or endemic extinction analyses, plays an important role in the relationship between humans and our surrounding environment. In these analyses, both the role of mobile elements in the evolution of pathogenic Xanthomonas sp. bacteria, and the demographic and reproductive analysis of Castilleja parvula, an imperiled alpine plant, are evaluated. Xanthomonas species are one of the top agricultural threats, and are known to evolve rapidly. Until now, the contributions of mobile elements and particularly bacteriophage have not been thoroughly evaluated. The contribution of these agricultural diseases to food insecurity and the devastation of crops that …
Inelastic Behavior Of Three-Story Buildings With Concrete-Filled Composite Plate Shear Walls Subjected To Wind Loads, Joshua John Blom
Inelastic Behavior Of Three-Story Buildings With Concrete-Filled Composite Plate Shear Walls Subjected To Wind Loads, Joshua John Blom
Theses and Dissertations
Although elastic design of the main wind force resisting system in a building is the conventional approach it is not always desirable. In this study, nonlinear static and dynamic analyses are used to predict the inelastic behavior of a three-story building with concrete-filled composite plate shear walls subjected to wind loads. To explore the potential for inelastic design, two types of planar composite shear wall buildings are examined: individual shear walls designed using an elastic approach, and coupled shear wall pairs designed using an inelastic approach adopted from seismic design provisions. Nonlinear static "pushover" analyses are run using an assumed …
Experimental Testing Of Axially Loaded Fuse Plates Without Continuous Buckling Restraint, Rebekah Elizabeth Higgins
Experimental Testing Of Axially Loaded Fuse Plates Without Continuous Buckling Restraint, Rebekah Elizabeth Higgins
Theses and Dissertations
Current seismic design practice is to design structures to avoid collapse and protect life. Buildings are designed to resist seismic loading through strength and ductility. In moment frames, this ductility traditionally comes from inelastic deformation of beams. Moment frame connections move inelastic deformation away from the column and allow a plastic hinge to form in the beam. This plastic hinge prevents collapse but leaves the building difficult to repair. Some proprietary moment frame connections address this issue with replaceable fuse plate connections. These fuse plate connections move the plastic hinge out of the beam and into the replaceable fuse, allowing …
The Negotiation Of Identities Through Humorous Discourse In Political Resistance: An Analysis Of Bassem Youssef's 'The B+ Show', Howaida Aref
Theses and Dissertations
This study examines the strategic use of humorous discourse in negotiating identities and expressing political resistance during the 2011 Egyptian Revolution, focusing on Bassem Youssef's satirical YouTube show, "The B+ Show." Employing a mixed-method approach that combines Grice's maxims of cooperative communication and Fairclough's critical discourse analysis framework, the research investigates how humor functioned as a tool for challenging hegemonic narratives and power dynamics through constructing and deconstructing identities in a volatile sociopolitical context. The analysis reveals that Youssef skillfully exploited various discursive resources, particularly intertextuality and the flouting of conversational maxims, to generate implicatures that effectively debunked negative representations …
An Analysis Of Student Performance In Elementary Linear Algebra At Brigham Young University, Adrienne Irene Christensen
An Analysis Of Student Performance In Elementary Linear Algebra At Brigham Young University, Adrienne Irene Christensen
Theses and Dissertations
This study investigates different factors that influence performance in the Elementary Linear Algebra (ELA) course taught at Brigham Young University. These factors include student characteristics such as true freshman status and college enrollment, and content-specific factors such as how performance on essential topics affects overall performance in the course. To analyze the various research questions posed in the study, I used robust linear mixed effects models with random effects controlling for the hierarchical structure of the data. The statistically significant results from these models indicate that (i) true freshmen perform better than other students on exams and in the ELA …
Measuring And Modeling Nonlinear Vibrations In Structures With Mechanical Joints, Suzanna Gilbert
Measuring And Modeling Nonlinear Vibrations In Structures With Mechanical Joints, Suzanna Gilbert
Theses and Dissertations
Many assembled structures have bolted or riveted joints. Aside from providing a convenient method of assembly, mechanical joints have an important effect on the structure's dynamic response to its environment. Friction and microslip within the joints help to damp out unwanted vibration. However, the joints also introduce nonlinearity into the response. Most notably, the natural vibrational modes of the structure no longer have constant natural frequencies and damping ratios. Rather, they shift as a function of vibration amplitude. Several methods exist to characterize the dynamics of nonlinear systems, yet they are generally validated on simple benchmark structures, and many still …
The Relationship Between Light Physical Activity And 10-Year Weight Change In 2,868 U.S. Adults: A National Health And Nutrition Examination Survey Investigation, Chloe Diane Cory
The Relationship Between Light Physical Activity And 10-Year Weight Change In 2,868 U.S. Adults: A National Health And Nutrition Examination Survey Investigation, Chloe Diane Cory
Theses and Dissertations
The prevalence of obesity has steadily increased over the past several decades. About 13.4% of Americans aged 20-74 had obesity in 1960-1962 and the prevalence has steadily increased to 40.3% in 2021-2023--more than a 3-fold increase. PURPOSE: The aim of this study was to evaluate the relationship between time spent in light physical activity (LPA) and 10-year weight change in a random sample of 2868 women and men representative of the U.S. adult population. METHODS: Data were used from the National Health and Nutrition Examination Survey (NHANES) from the 2003-2006 data cycles. Participants were limited to non-pregnant U.S. …
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 …
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 …
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, …