Digital Commons Network^™

Geospatial Business Location Implications For Mississippi-Based Nissan Group Changing To Electrical Vehicle (Ev) Production, Sudheer Galla

Master's Theses

This research examines the shift from conventional Internal Combustion Engine (ICE) to Electric Vehicle (EV) production in the automotive industry. Utilizing the JobsEQ Input-Output model, it reveals complex economic interdependencies and highlights the concentration of Nissan Tier 1 suppliers around its Canton manufacturing operations in the Midwest and Southern U.S., indicating an efficient supply chain and regional economic impact.

In Mississippi, the transition to EV production is projected to create 4,415 jobs and increase compensation by $295.5 million, presenting a competitive edge in automotive employment opportunities. However, it emphasizes the need to retain and upskill the existing workforce, especially for …

Whose Woods These Are: Human-Environment Relationships Among Stakeholders Of South Mississippi's Longleaf Pine Ecosystem, Helen Greene

Master's Theses

Between 1870 and 1920, the longleaf pine belt of the southeastern United States experienced an extensive and unsustainable period of logging. In the years after the logging boom the landscape of the Southeast was reforested, but fire suppression and a preference among landowners for loblolly pine resulted in a dense and less resilient forest with reduced biodiversity. This research looks at the human geography of remnants of the longleaf pine ecosystem in South Mississippi and the nature of contemporary relationships between South Mississippi residents and this ecosystem.

In an effort to make sense of the complex relationships between people and …

Estimation Of Angular Response Curves Using A Phase Differencing Bathymetric Sonar, Kandice Gunning

Master's Theses

Although Multibeam Echosounders (MBES) backscatter products like Angular Response Curves (ARC) and mosaics have been used and applied to different sediment types as classification tools, little is known about the extraction and interpretation of ARCs using Phase Differencing Bathymetric Sonar Systems (PDBS). This thesis aims to use an across-track approach to develop a method for extracting ARCs from georeferenced bathymetric data using PDBS.

Three different data collection surveys were conducted using a PDBS operating at 540kHz. Using only the bathymetric data, initial ARCs from 3 different intensity classes (high, medium, and low) were successfully extracted, the results of which attempted …

College Athletes As Endorsers: A Study Of Nil Advertising, Zach Johnson

Master's Theses

The objective of this study is to determine how effective the newly enforced NIL deals among college athletes are in terms of social media advertising. With the rise of social media and the amount of people using social media daily, it is imperative for advertisers to understand various ways of promoting brands on social media. A 2x2x2 mixed experimental design was used to investigate the effects of college athletes-sponsored Instagram posts among college students, specifically source relevance, product relevance, and message authenticity. Findings suggested positive effects of using college athletes as sponsors. Source relevance, product relevance, and message authenticity played …

The Examination Of A Teacher Mentorship Intervention On Junior Teachers' Stress And Self-Efficacy, Cagla Cobek

Master's Theses

This study examined a daily Check-In/Check-Out mentorship intervention for junior teachers. Changes in junior teachers’ stress level and their sense of self-efficacy were measured. Researchers collected data from three junior teachers and mentor dyads in a Southeastern school district. A Multiple Baseline Design across three teachers was used in this study to examine the impact of the daily mentorship intervention. The results suggested that daily Check-Ins and Check-Outs with mentor teachers decreased all three junior teachers’ daily stress. The intervention did not impact significantly on junior teachers’ perceived stress and their sense of self-efficacy. Overall, this study supports a promising …

Foundations Of Memory Capacity In Models Of Neural Cognition, Chandradeep Chowdhury

Master's Theses

A central problem in neuroscience is to understand how memories are formed as a result of the activities of neurons. Valiant’s neuroidal model attempted to address this question by modeling the brain as a random graph and memories as subgraphs within that graph. However the question of memory capacity within that model has not been explored: how many memories can the brain hold? Valiant introduced the concept of interference between memories as the defining factor for capacity; excessive interference signals the model has reached capacity. Since then, exploration of capacity has been limited, but recent investigations have delved into the …

Development Of An Angiogenic Tissue-On-A-Chip Microenvironment, Eric Stuehr

Master's Theses

Preclinical testing is necessary to investigate the safety and efficacy of novel therapeutics before moving to clinical trials, yet approximately 90% of these therapies fail once tested in humans. This has led to increased interest in developing robust preclinical models that accurately mimic the complex human in vivo physiology. Microfluidic devices that can introduce dynamic conditions to 3D cell/organoid cultures, also known as tissue-on-a-chip, have emerged as physiologically relevant in vitro preclinical models that can achieve high throughput screening of therapeutics. The research presented here aimed to develop an angiogenic environment within a novel microfluidic device to stimulate formation of …

The Evaluation Of Calsporin And Imw50 On Production Performance, Microbial Population, And Immune Function Of The Laying Hen, Kayla N. Kleist

Master's Theses

The use of antibiotics as growth promotors in the food animal industry has led to the generation of antibiotic resistant microorganisms, which are a major health risk to humans. Therefore, bans and limitations, including the FDA’s veterinary feed directive, have been placed on the use of antibiotics as growth promotors, and there has been a push to find an adequate alternative. In the laying hen, probiotics and/or prebiotics have shown promise as they help promote the colonization of beneficial bacteria in the GI tract of the host, increase feed efficiency, increase egg production, and provide protection against pathogenic bacteria.

In …

Smartphone Based Object Detection For Shark Spotting, Darrick W. Oliver

Master's Theses

Given concern over shark attacks in coastal regions, the recent use of unmanned aerial vehicles (UAVs), or drones, has increased to ensure the safety of beachgoers. However, much of city officials' process remains manual, with drone operation and review of footage still playing a significant role. In pursuit of a more automated solution, researchers have turned to the usage of neural networks to perform detection of sharks and other marine life. For on-device solutions, this has historically required assembling individual hardware components to form an embedded system to utilize the machine learning model. This means that the camera, neural processing …

Guilty As Charged: The Role Of Judge Instructions On Metaphor Produced Biases In Jury Decision Making, Gina N. Rita

Master's Theses

In this study, we hope to determine if the placement of judge instructions mitigates our previous study’s effect of metaphors on memory and verdict decisions. Our previous study showed in the metaphor condition, participants were more likely to vote guilty and remember more metaphor-related evidence compared to those in the control group. In addition to replicating the previous study’s results, we hypothesize judge instructions stated at the beginning of the trial will have little influence on the metaphor effects, and judge instructions at the end of the trial will weaken these effects. Participants will be randomly assigned to one of …

"It's Good To Doubt Saints, Vladim.": Medieval Constructions Of Sainthood, Their Histories, And Their Cults In Leigh Bardugo's Shadow And Bone, Kacie Barrett

Master's Theses

The Grishaverse is the fictional world created by author Leigh Bardugo that encompasses three separate series and ten different books. First published in 2012, the Shadow and Bone trilogy introduces readers to the world of Ravka, its Grisha, and its saints. The story follows Alina as she moves from orphan and soldier to saint and martyr. Sankta Alina becomes a character of its own – a version of Alina communicated to the people of Ravka as a banner to rally behind. She is made into living saint. The questions raised by Leigh Bardugo are echoed in church history. Sainthood is …

Feigning Goodness: Considering The Presence And Absence Of Aristotelian Ideas In Character Education Through Thematic Analysis, Mylo Apollo Parker-Emerson

Master's Theses

In the past 15+ years in the fields of psychology, philosophy, education, and at a federal level within the U.S. Department of Education, there has been a push to incorporate social emotional learning in schools, namely through character education (Berkowitz, 2021; Federal Commission on School Safety, 2018; Hatchimonji et al., 2020; Jubilee Centre for Character and Virtues, 2022). Character education as an educational reform works to accomplish the functions of education through a focus on building good character, sometimes categorized as soft skills. Many schools have incorporated curriculums of character education to provide a more holistic education. Through the many …

The Unhappy Specter: The Buried Remains Of Self And Other, Kirt Henry Broesche

Master's Theses

In this paper, we argue that Derrida’s account of the uncanny experience of being haunted by a specter reveals consciousness to be constitutively haunted. From Derrida’s account in Specters of Marx, we locate the cause to the possibility of haunting from the inability to complete a so-called work of mourning. We note primarily the development of Derrida’s account of specters with respect to the psychoanalytic distinction between mourning and melancholia. We go on to compare Derrida’s characterization of a haunted subject to Hegel’s conception of Unhappy Consciousness to discuss the possibility for a haunted consciousness to be assimilated into a …

A Study On Api Security Pentesting, Hadi Asemi

Master's Theses

Application Programming Interfaces (APIs) are essential in the digital realm as the bridge enabling seamless communication and collaboration between diverse software applications. Their significance lies in simplifying the integration of different systems, allowing them to work together effortlessly and share data. APIs are used in various applications, for example, healthcare, banks, authentication, etc. Ensuring the security of APIs is critical to ensure data security, privacy, and more. Therefore, the security of APIs is not only urgent but mandatory for pentesting APIs at every stage of development and to catch vulnerabilities early. The primary purpose of this research is to provide …

Non-Planar 3d Printing Of Thermosetting Prepolymers, Junaid Abid Ali

Master's Theses

Additive manufacturing or three-dimensional (3D) printing is an advanced process of manufacturing that challenges traditional manufacturing methodologies. However, the current 3D printing process does exhibit specific limitations. It generates printing paths that are in a horizontal plane, proving inadequate for printing curved or non-flat structures. This study established a printing procedure capable of simultaneously executing printing in X, Y, and Z directions. The limitations posed by conventional 3D printing lead to the poor surface quality of curved printed objects. In contrast, non-planar 3D printing provides smoother surfaces. This work developed a program capable of producing non-planar print paths for the …

Nira Ya Mtumwa Aliye Huru: Granville Kachipumo's Life Of Slavery And Redemption In Nineteenth-Century East Africa, Zachary Tyler Levy

Master's Theses

Granville Kachipumo was the Universities Mission to Central Africa’s African-born teacher at Mkului in East Africa near today’s Muheza district of Tanga, Tanzania. He was taken from his home along River Lintipe at 10 to 12 years old. Granville Kachipumo’s life began with his family west of Lake Nyasa. Ripped from the arms of his parents, Granville Kachipumo faced two inland journeys, each with its complex forms of slave trade. From the inland environment, Granville Kachipumo navigated to the mission halls of Masasi and beyond. Kachipumo’s story is, as Arthur Cornwallis Madan stated, “a story of an intelligent boy who …

Synchrotron Photoionization Study Of Two Reactions, Alpha Angelica Lactone And Propargyl Alcohol Oxidation Initiated By O(3p) Atoms, Golbon Rezaei

Master's Theses

This work describes the oxidation behavior of biofuels, Alpha Angelica Lactone, and Propargyl Alcohol through combustion experiments conducted at the chemical Dynamics Beamline 9.0.2 of the Advanced Light Source (ALS) situated at the Lawrence Berkeley National Laboratories (LBNL) in Berkeley, CA. The combustion process of these two biofuels was initiated by O(3P), and they were analyzed using a multiplexed chemical kinetics photoionization mass spectrometer with tunable synchrotron radiation. The primary products of these two reactions were identified by kinetic time traces and characterized using the photoionization spectra.

The initial chapter of this work describes the importance of using biofuels instead …

An Examination Of School Resource Officers' Self-Perception Of Role, Student Encounters And Duties, Alexandra Swanty

Master's Theses

As the rates of school shootings and school violence rise, the effectiveness of school resource officers (SROs) has come into question. As of now, there is no nationwide standard for the role and duties of school resource officers. Therefore, these differ from state to state and even school district to school district. One variable that had yet to be examined was the impact that location has on the roles of school resource officers. From this, three different school resource officer roles were identified: teaching-based role, community-based role, and law enforcement-based role. To determine the relationship between these variables, an online …

Experiences And Perspectives Of A Speech-Language Pathologist On Strategies And Challenges For Students With Autism Spectrum Disorder In The General Education, Inclusion-Focused Classroom Post Distance Learning, Hayley Mahnke

Master's Theses

Autism spectrum disorder (ASD) is a neurodevelopmental disorder that affects an individual’s communication and social skills (Ibrahimagic et al., 2021). The impacts vary across individuals but often includes struggles with transitions, flexibility, and organization (Ibrahimagic et al., 2021). Students with ASD frequently struggle with pragmatic skills that are the foundation for academic experiences and peer relationships (Ibrahimagic et al., 2021; Sutton et al., 2018). These skills are often important speech-language therapy targets that are challenged by faculty buy-in, school resources, and peer acceptance (Garrote et al., 2017; Kasari et al., 2011; Koster et al., 2009; Lloyd et al., 2016; Sutton …

Gendered Experiences In Learning, Interpreting, And Using Sexual Consent, Emma Ryan

Master's Theses

Previous research has sought to understand how individuals use or prefer to use sexual consent, what children learn about consent, and if parents teach sexual consent to their children (Cavazos-Rehg et al., 2009; Jozkowski et al., 2013; Padilla-Walker et al., 2020). While research aims to comprehend how people involved in sexual intimacy use sexual consent, literature excludes non-heterosexual couples and non-binary folks’ consent experiences (Beres et al., 2004; Sternin et al., 2021). This exclusion hinders society’s knowledge about sexual consent education, consent use, and interpretation. Therefore, although the understanding of sexual consent has grown, we do not have ample knowledge …

Exploring And Evaluating The Effectiveness Of Greeley’S Mental Health Co-Responder Program And “Squad 1”, Mikelle Angiuli

Master's Theses

Law enforcement officers are often the de facto emergency response for mental health crises despite having little to no mental health training. With nearly 20% of U.S. adults reporting experiencing a mental illness and recent police reform movements bringing attention to alternative policing practices and policies, there is arguably a need for comprehensive mental health treatment and emergency response in the U.S. (Mental Health America, n.d.). The cities of Greeley and Evans, Colorado have implemented a mental health co-responder program that involves individual mental health clinicians and a mental health ambulance, Squad 1, responding alongside police on mental health calls …

An Overview Of Speech-Language Pathologists’ Current Practices For Bilingual Children With Childhood Apraxia Of Speech, Yessica Villanueva Guerra

Master's Theses

Purpose: This study aimed to explore and describe current practices of speech-language pathologists (SLPs) who presently work or have worked with bilingual children with Childhood Apraxia of Speech (CAS) in diverse settings. Exploration of this topic may contribute to the need for more knowledge in the Speech-Language Pathology field regarding evidence-based practices for the target population. The primary aims addressed in this study were: 1) To describe the assessment procedures currently used by speech-language pathologists to diagnose bilingual children with Childhood Apraxia of Speech, 2) To describe the intervention approaches currently used by speech-language pathologists to treat bilingual children with …

Genetic Parameters For Heat And Salinity Stress Tolerance In Northern Gulf Of Mexico Eastern Oyster, Crassostrea Virginica, Paul Mcdonald

Master's Theses

Summer mortalities in Gulf of Mexico eastern oysters have been linked to excessively high temperatures, and chronic exposure to low salinity. In this study, the feasibility of improving tolerance to these two stresses by selection was evaluated in common garden experiments employing a pool of 160 families. Heat stress tolerance was evaluated in seed (3.5 months) and adults (14 months) by applying a sustained temperature of 38-39 °C until all oysters expired. Low salinity challenges on juveniles (9 months) and adults (15 months) applied a salinity of 2.5 psu. Survival duration of individual oysters during challenges was recorded and tissue …

Theoretical And Experimental Study Of Active Magnetic Bearing Control Integrated On Bently's Rotor Kit, Arturo Mario Flores

Master's Theses

This thesis focuses on the comprehensive study of controlling a customized Active Magnetic Bearing (AMB) installed on Bently Nevada’s RK4 rotor kit in Cal Poly’s Vibrations and Rotordynamics Lab. The AMB was uniquely designed and manufactured by a Cal Poly senior project team to fit Bently’s rotor kit and the results of this research are distinctive to the custom system. To achieve practical functionality of the AMB system, we designed a controller a Virtual Instrument (VI) using the National Instrument software, LabVIEW. From the experimental study, we calibrated the programming to find unknown parameters of the AMB system and validated …

Characterization And Estimation Of Musculoskeletal Pain Using Machine Learning, Boluwatife Faremi

Master's Theses

Traditional scales utilized for recording pain are known to be highly subjective and biased due to inaccuracies in recollecting actual pain intensities. As a result, machine learning (ML) models that are trained using these scores as ground truth are reported to have low performance for objective pain classification because of the huge disparity between what was felt in moments of pain and the scores recorded afterward.

In the present study, two devices were designed for gathering real-time, continuous in-session subjective pain scores and the recording of the autonomic nervous system (ANS) altered endodermal (EDA) activity. 24 participants were recruited to …

Climate & Conflict: View Into A Warming World, Faelynn Carroll

Master's Theses

Unlike weather patterns, the El Niño Southern Oscillation (ENSO) is a large-scale, cyclical climate system that is now predictable for up to a year and a half in advance. ENSO cycles occur every two to seven years for approximately two years at a time, affecting large swaths of the globe with plausibly random variation in the exact location and strength of local effects. However, its systemic nature allows for aggregate effects to be accounted for by its outcomes. This research uses novel 0.5 x 0.5 degree ENSO teleconnection analysis for precipitation and temperature to uncover environmental mechanisms that underly the …

Design And Validation Of A Wearable Smartsole For Continuous Detection Of Abnormal Gait, Karoline M. Wucherer

Master's Theses

Residual gait abnormalities are common following lower limb injury and/or stroke and can have several negative impacts on an individual’s life. Without continuous treatment and follow up, individuals can be prone to chronic pain as abnormal gait may lead to non-physiological loading of the musculoskeletal system. The current industry gold standard for diagnosing abnormal gait requires specialty equipment that is generally only available at designated gait facilities. Due to the inaccessibility and high cost associated with these facilities, a wearable SmartSole device to continuously detect abnormal gait was proposed. A previous iteration of the SmartSole was unable to properly detect …

Evaluation Of Potential Surrogates For Listeria Monocytogenes In Fresh Citrus-Specific Validation Studies, Kimiko Grace Casuga

Master's Theses

The FSMA Produce Safety Rule (PSR) requires citrus packers to more closely assess, manage, and monitor food safety risks. Although there have been no foodborne illness outbreaks and only one recall in fresh citrus, the risk of pathogens coming in on the fruit and cross contamination during washing still exists. Packhouses have dynamic washing systems and in-plant validations may be the only way to demonstrate compliance with the PSR. In-plant validations use surrogates in place of pathogens, and none have been identified or validated for citrus. The aim of this research was to identify a surrogate for use in fresh …

Mobile Firewall System For Distributed Denial Of Service Defense In Internet Of Things Networks, Lorenzo B. Gardea

Master's Theses

Internet of Things (IoT) has seen unprecedented growth in the consumer space over the past ten years. The majority of IoT device manufacturers do not, however, build their products with cybersecurity in mind. The goal of the mobile firewall system is to move mitigation of network-diffused attacks closer to their source. Attack detection and mitigation is enforced using a machine that physically traverses the area. This machine uses a suite of security tools to protect the network. Our system provides advantages over current network attack mitigation techniques. Mobile firewalls can be deployed when there is no access to the network …

Autonomous Attitude Consensus For Nanosatellite Formations In Leo, Laird J. Mendelson

Master's Theses

Consensus strategies are examined as a possible approach to achieving attitude alignment for a large, close-proximity formation of nanosatellites in low earth orbit (LEO). An attitude-only distributed consensus approach is selected for further consideration due to its comparatively low data transmission requirements. The convergence of a connected network of satellites to the attitude agreement subspace under this control law is shown using a Lyapunov stability approach with a set of idealizing assumptions. A moderate-fidelity simulation demonstrates the performance of the control law under realistic conditions that violate those assumptions. Particular emphasis is placed on the conditions that arise from the …