Digital Commons Network^™

Pathways To Aggression: Understanding Peer Victimization In Adolescence, Makenzie H. Clarken

Theses/Capstones/Creative Projects

Insight into aggression among early adolescents is important to understanding its predictors and consequences. In adolescence, aggression is typically related to underlying issues. Addressing this is important, as unmanageable aggression progressing past early adolescence can result in involvement in the criminal justice system. Studies show that peer victimization is associated with increased levels of aggression. Aggressive adolescents may attract victimization from their peers, or those who are victimized may respond with aggression. The current study followed a sample of 182 fifth and sixth graders over the course of the school year. Constructs such as aggression, peer victimization, and social withdrawal …

Comparative Analysis Of The Effects Of Peppermint Oil On Colorectal Cancer Cells And Human Fibroblasts, Allen W. Mccumbers

Theses/Capstones/Creative Projects

This study contrasted the effects of Peppermint Oil on two cell lines, HT29s (colorectal adenocarcinoma cells) and HFFs (Human Foreskin Fibroblasts). Cytotoxic as well as genomic effects were compared between the cell lines. Trypan Blue, Alamar Blue, and qPCR assays were used to study these effects. Both cell lines were treated with a range of Peppermint Oil concentrations, and it was determined that there is a dose-dependent factor associated with cytotoxicity. To confirm results, Alamar and Trypan Blue assays were repeated at 300 and 500 cells/mL respectively. Effects were confirmed, and results were averaged and plotted. Alamar Blue revealed that …

Phylogenomics Of African Labeo (Cypriniformes: Cyprinidae) Emphasizing Central African Species, Tobit L.D. Liyandja, Brian T. Smith, S. Elizabeth Alter, Brian L. Sidlauskas, Melanie L.J. Stiassny

Biology, Agriculture and Chemistry Faculty Publications and Presentations

Labeo constitutes the largest genus within the cyprinid tribe Labeonini with over 110 recognized species in Africa and Asia. The clade comprises a major component of the herbivore/detritivore guild with considerable socio-economic importance to artisanal and commercial fisheries. A pan-African distribution and wide variety of habitat occupancy make the group a model to investigate diversification patterns, eco-phenotypic variation, and biogeographical events underpinning their radiation at a continental scale. However, previous attempts to elucidate Labeo systematics using either molecular or morphological data have failed to produce congruent and robust results, and much taxonomic and nomenclatural confusion remains. Here we present the …

Cal Poly Semester Conversion Time Capsule, Maximus La Via, Matthieu Gol, Viki Sarmasi, Tuyetthuc Nguyen

Mechanical Engineering

As Cal Poly transitions from the quarter system to the semester system, aligning itself with the other California universities, the idea has been proposed to commemorate this moment in the history of the university with a time capsule. The time capsule will be on display on the first floor of the library for a few years and later moved into the library’s archive room for permanent storage. 50 years after the completion of the semester conversion project, the time capsule will be opened. This project aims to create a secure and aesthetic device capable of storing and protecting memorabilia from …

The Absence Of Something: Addressing Underrepresented Lgbtqia+ Communities In Video Games Through Holistic Character Design Techniques, Lydia Myers

Master of Fine Arts in Digital Media Culminating Experience

This research identifies pain points and gaps in current LGBTQIA+ representation in the video games industry, and showcases the characters that I have created in response to those pain points. Despite the games industry representing LGBTQIA+ individuals often, certain communities under the umbrella are included less often, less accurately, and less respectfully than others. The goal of this research is to identify important considerations for respectfully portraying underrepresented queer communities in video games: specifically transgender, nonbinary, asexual, aromantic, and polyamorous communities, which are especially under-explored. My included characters were created via a holistic approach to character design. Despite my professional …

Flexible Spatial Priors In Bayesian Neuroimaging: Gmrf, Nngp, And Deep Gmrf, Boyoung Hur

All Dissertations

Structural neuroimaging is essential for understanding neurological disorders such as Alzheimer’s disease, enabling accurate delineation of brain regions through image segmentation. Among various segmentation methods, multi-atlas-based approaches like label fusion have become leading techniques. In statistics, Bayesian hierarchical models for label fusion are increasingly favored for their ability to incorporate uncertainty and prior knowledge. Also, a key challenge in modeling neuroimaging data is spatial dependence among image voxels, making the choice of spatial prior critical—particularly in high-resolution settings where segmentation accuracy and computational efficiency are both essential.

This dissertation proposes fully Bayesian spatial hierarchical models that explore two flex- ible …

The Depositional Environment Of The Triassic Cow Branch Formation, Dan River Basin Of Virginia And North Carolina Through Petrographic Study And Geochemical Analysis, And In Relation To Taphonomic Processes And Vertebrate Morphology, Gina M. Workman

All Graduate Reports and Creative Projects, Fall 2023 to Present

The Upper Triassic Cow Branch Formation of the Dan River Basin, located in southern Virginia and northern North Carolina, has long captivated generations of geoscientists. Since the 1970s, researchers have sought to unravel the mystery surrounding the depositional environment of this ancient lake system. This world-class lagerstätte hosts a diverse assemblage of fossil fauna and flora, with a notable preservation bias toward fossil vertebrates, most prominently the archosauromorph, Tanytrachelos ahynis. The geology of the Cow Branch strata continues to evoke a persistent question: Are these sediments representative of a shallow or deep lake?

I undertook a petrographic and geochemical study …

Identifying Barriers For Community Pharmacies As Vaccines For Children (Vfc) Providers In Rural Alabama: Opportunities For Solutions, Myra Bajwa

Honors Theses

Significant Human papillomavirus (HPV) vaccination disparities exist between rural and urban areas in the US. A primary contributor is low access to preventive care in rural areas. Among the most promising strategies to overcome this is increasing access through offering HPV vaccination in non-traditional, convenient health settings such as pharmacies. In rural areas, community pharmacies are trusted, convenient pillars of the community. In Alabama, community pharmacies are eligible for enrollment in the Vaccines for Children (VFC) Program, a federally-funded program that provides free vaccines to children and adolescents under 18 years old who are uninsured, underinsured, American Indian, or Alaska …

A Study On Deepsea Fish Detection Using Convolutional Neural Networks, Poojitha Priyadarshini Madari

Master's Theses

This study investigates automated deep-learning methodologies for two primary tasks, firstly fish and its habitat classification and deep-sea fish detection using the DeepFish dataset. A pretrained ResNet-50 model attained a validation accuracy of 82.8% for multi-class habitat classification, demonstrating robust performance in most habitats based on 6,517 images, although exhibiting lower recall for visually similar or underrepresented classes. A binary ResNet-50 classifier achieved 99.8% accuracy in distinguishing fish from. no-fish images using approximately 40,000 images. The YOLOv5s model, trained on 4,505 images containing 15,463 bounding-box annotations, achieved a mean average precision ([email protected]) of 98.2% All models were trained on the …

Seagrass Carbon Standing Stock In The Northern Gulf Of Mexico: The Role Of Seagrass Beds In Mississippi As Potential Blue Carbon Sinks, Devan Hildebrand

Master's Theses

Organic carbon stored in marine ecosystems is known as blue carbon. Seagrass beds have the ability to contribute to global blue carbon standing stocks through the uptake and sequestration of carbon from the water column. Through coastal management and conservation best practices, blue carbon habitats have the potential to help mitigate the effects of climate change. Although widely studied, knowledge gaps exist on the sediment carbon standing stock of seagrasses. I aim to better understand how persistent seagrass meadows surrounding barrier islands in the northcentral Gulf of Mexico contribute to long-term blue carbon standing stocks. Subaqueous sediment cores were collected …

Life History And Distribution Of Two Species Of Cownose Ray, Rhinoptera Bonasus And Rhinoptera Brasiliensis, In Mississippi Coastal Waters, Anna Millender

Master's Theses

Historically, the American Cownose Ray (Rhinoptera bonasus) was considered the only rhinopterid residing in the northern Gulf of Mexico (GOM); however, recent studies have confirmed the presence of the Brazilian Cownose Ray (Rhinoptera brasiliensis) throughout this region. The current study investigated the life history and distribution of both species within Mississippi waters, an area that previously represented a data gap for both species. From April 2016 – July 2025, 193 R. bonasus and 94 R. brasiliensis were analyzed to describe the reproductive biology. Reproductive timing, mating, gestation length, and parturition were similar among species. Although more …

Micro-Greens, Not Micro-Yellows: Evaluating Dehydration-Based Preservation Techniques For Reducing Foodborne Pathogens And Quality Preservation On Microgreens, Travis S. Sananikone

Graduate Theses and Dissertations

Microgreens are increasingly popular among consumers due to their high nutritional value. However, their limited shelf-life remains a significant challenge. To extend their usability, small-scale growers increasingly apply home preservation methods like warm air drying or freeze-drying. However, the effects of these methods on common foodborne pathogens are not well understood. Radish and alfalfa microgreens were inoculated with cocktails of Salmonella enterica, Escherichia coli O157:H7, and Listeria monocytogenes 4b (ca. 8.0 log CFU/g). Treatments included dehydration in a commercial dehydrator, freeze-drying (-20°C, 24 h), and convective drying in an oven (60°C for 4 h), and convective drying in an oven …

Factors Shaping Data-Based Decision-Making: The Role Of Self-Efficacy, Anxiety, And School Culture In Mississippi’S State Tested Subjects, Cymone E. Bradford

Dissertations

This quantitative study examined the factors influencing Mississippi state-tested teachers’ engagement in data-based decision-making (DBDM). The purpose of the study was to explore how self-efficacy, anxiety, and school culture shape teachers’ experiences using data to guide instruction. A researcher-developed instrument measuring four constructs self-efficacy in data interpretation, anxiety related to DBDM, self-efficacy and engagement in DBDM, and school culture and DBDM was administered to Mississippi teachers of state-tested subjects. Descriptive statistics, a one-way ANOVA, correlation analysis, and multiple regression were used to analyze the data.

Results revealed significant differences in demographic characteristics of age and frequency of data use when …

Fungal Biodiversity, Microbial Communities, And Ecosystem Function In Non-Perennial Streams, Charles T. Bond

Dissertations

A global majority of steams are non-perennial, drying at some point in time and space. Despite the vital roles that fungi and other microbes play in stream ecosystems, most research on stream microbiomes comes from perennial (continuously flowing) streams. The present series of studies addresses this research gap by examining microbial community composition and function in non-perennial streams, with an emphasis on fungi. Chapter I reviews existing scientific literature on the ecological processes that shape microbiome structure and function in non-perennial streams and outlines the varieties of fungi that may live there. Chapter II uses rDNA metabarcoding to survey fungal …

High Test-Retest Reliability Of Nucleus Accumbens Activity During Reward Anticipation, Nathaniel Bouton

Graduate Theses and Dissertations

Recent research has questioned the reliability of Functional Magnetic Resonance Imaging (FMRI). The findings suggest poor test-retest reliability of FMRI measures across brain areas and tasks, and specifically in subcortical brain areas during reward-related tasks. Further, data from the Adolescent Brain Cognitive Development (ABCD) study showed low reliability and low stability of the fitted coefficients from whole-brain regression analyses of the Monetary Incentive Delay (MID) task. However, optimizing methods might improve reliability, for example: (1) acquiring single-band rather than multi-band FMRI sequences, (2) extracting raw activity rather than fitted coefficients, and (3) honing analyses to target brain areas during specific …

Hyperspectral Indicators And Characterization Of Glyphosate-Induced Stress In Common Lambsquarters (Chenopodium Album L.), Mario Andrés Soto Valencia

Graduate Theses and Dissertations

Hyperspectral sensing enables detection of herbicide stress in weeds, but practical use requires strategies for redundancy control, rating variability management, and evaluator bias mitigation. This thesis evaluates common lambsquarters (Chenopodium album) under glyphosate exposure, aiming to identify key wavelengths, construct vegetation indices, and improve injury modeling. Greenhouse experiments used dimensionality reduction methods (principal component analysis, Relief F, Bayesian discriminant analysis) to isolate 34 unique wavelengths from about 3,200 bands. Calibration data were collected 14 days after treatment (DAT) to support wavelength selection and model development, while data from 27 DAT were used for independent validation. Class comparisons across six statistically …

The Genetic And Environmental Determinants Of Stress Resilience Across Model Systems, Carson Len Stacy

Graduate Theses and Dissertations

Survival in fluctuating environments demands that organisms effectively anticipate and respond to future challenges. This capacity is shaped by both genetic background and environmental context. In this dissertation, I apply a population aware lens to explore how genetic diversity and environmental conditions intersect to shape stress survival. Integrating functional genomics and transcriptomics in Saccharomyces cerevisiae (brewer’s yeast) and a vertebrate (common canary) system, I dissect gene-by-environment (GE) interactions that underpin resilience. First, I move beyond a single reference genome by using a pan-genomic CRISPR knockout screen to assess osmotic stress survival across diverse S. cerevisiae isolates. This analysis reveals a …

Multiple Aspects Of Environmental Temperature Have Complex Interactions With Avian Parental Behavior To Influence Offspring Outcomes, William H. Kirkpatrick

Graduate Theses and Dissertations

Anthropogenic climate change is projected to shift not only average temperatures across the globe, but also the amount of thermal variation experienced in the natural environment. Exposure to shifts in averages and a wider range of thermal experiences will cause shifts in wildlife behavior. In avian species, behaviors exhibited during reproduction have implications for the well-being of their offspring. Here, I explore specific incubation behaviors in four species: Scaled Quail (Callipepla squamata), Northern Bobwhite Quail (Colinus virginianus), Tree Swallows (Tachycineta bicolor), and Eastern Bluebirds (Sialia sialis). I examined constancy, or the percentage of time on the nest, and off-bout duration, …

Broiler Responsiveness To Dietary Amino Acid Density In A Commercial Setting, Virginia Slick

Graduate Theses and Dissertations

The majority of research assessing the amino acid responsiveness in broilers has been conducted in experimental designs utilizing pens that contain 12 to 25 birds with high replication. While this trial design is beneficial as a way to perform high replications with multiple treatments in a way that is both economically and spatially feasible, it may not accurately translate to a rearing environment more similar to that of commercial open floor housing. This research was conducted to determine if the effects of lysine driven amino acid density diets that have been found in the traditional floor pen setting correlate to …

Using Color And Fluorescent Spectrometry As A New Rapid Cleaning Verification Method In Poultry Processing Plants, Clark Griscom

Graduate Theses and Dissertations

The poultry industry is expected to be growing at 3% in the total global market with the U.S. being the largest producer of poultry meat. Poultry processing plants are expected to produce 140 birds per minute with the potential of up to 175 birds per minute to meet the market demand. With the growing market and need for faster production, maintaining food safety needs to be a priority to ensure the safety of consumers. Over 9.9 million foodborne illness cases are reported each year in the United States. A change in food safety is needed, and one area lacking is …

Why The Long Face? The Distribution And Niche Of The Imperiled Narrow-Faced Kangaroo Rat (Dipodomys Venustus), Garrett L. Gimbel

Master's Theses

Distribution models provide a practical use case of connecting ecological niche theory with species’ occurrence and assemblages. By explicitly linking Hutchinson’s “niche space” with geographic space researchers can gain valuable information on a species’ niche characteristics and interactions, thereby informing conservation and management practices. The narrow-faced kangaroo rat (Dipodomys venustus) is a highly understudied kangaroo rat species endemic to the central coast of California and is an ideal species to explore niche theory in distribution modeling. Three subspecies are currently recognized: The Santa Cruz kangaroo rat (D. v. venustus), the elephant-eared kangaroo rat (D. v. …

From Awareness To Action: Improving Advanced Directives With The Five Wishes In College Aged Young Adults, Dina M. Giovanetti

Electronic Theses and Dissertations

This quality improvement project aimed to increase early education, initiation, documentation, and completion rates of advance directives (ADs), specifically the Five Wishes, among college-aged young adults (18–24 years old) in a concierge primary care setting. The project addressed the low engagement and completion rates of ADs in this population, which can result in inadequate end-of-life care planning. The initiative involved training all staff members through collaborative instruction, informational sessions, and personalized provider-patient discussions. A convenience sample of eligible patients was identified via chart review. Inclusion criteria included English-speaking young adults aged 18–24, regardless of comorbid conditions who were members of …

Rafy Metodologiczne W Naukach O Zarządzaniu Ludźmi, Grażyna Wieczorkowska-Wierzbińska

Monografie/Monographs

Podręczniki nie różnicują metodologii ze względu na to czy obiektem badań są zasoby rzeczowe, czy ludzie. Prowadząca badania ludzi i ucząca analiz danych od ponad 40 lat Autorka opisała w monografii RAFY (zagrożenia), których brak świadomości powoduje, że rozwój nauk społecznych nie jest tak dynamiczny, jak skok technologiczny, którego doświadczamy na każdym kroku. Po przeczytaniu monografii zapamiętamy, że: (1) ludzi można wylosować, ale nie można ich zmusić, aby dali się „zmierzyć”; (2) ludzie nie reagują na bodźce, np. instrukcję, lecz na ich własną interpretację; (3) zróżnicowanie poznawczych, emocjonalnych i behawioralnych reakcji badanych ludzi na ten sam bodziec jest dużo większe …

Enhancing Crna's Knowledge Of Radiation Safety Through Online Education, Angela Iledan, Madeline Pousson

Doctoral Projects

Although ionizing radiation is frequently used in anesthesia-related procedures, many CRNAs receive minimal training in radiation safety principles and protective measures. This knowledge gap increases the risk of cumulative radiation exposure for providers and patients. To address the issue, this doctoral project developed and implemented an online educational intervention designed to enhance CRNAs’ understanding of radiation safety, ultimately promoting safer practices in radiation-prone environments.

The doctoral project follows a QI and EBP approach that incorporated diverse adult learning styles to enhance engagement and knowledge retention of CRNAs. The online educational module was designed and delivered to CRNAs that currently practice …

Isolation Of The 2019 Bonnet Carré Spillway Effects On The Habitat Suitability Of Brown Shrimp (Farfantepenaeus Aztecus) And Blue Crab (Callinectes Sapidus) Using A Modeling Approach, Mallory Dyson

Master's Theses

In 2019, an unprecedented flood year, the Bonnet Carré Spillway (BCS) was opened on two separate occasions (February 27^th to April 11^th, and May 10^th through July 27^th) diverting a volume 6 times the volume of Lake Pontchartrain into the surrounding coastal waters of Louisiana, Mississippi, and Alabama. The goal of this research was to determine the spatio-temporal influence of these freshwater releases on two economically and ecologically important species (Farfantepenaeus aztecus and Callinectes sapidus) with variable responses to salinity and temperature depending on the age class. The Habitat Suitability Index (HSI) …

Self-Determination Through Children's Rights: Resisting The Paradoxical Pretext Of Parents' Rights Legislation, Jeremiah Chin

Washington Law Review

Washington state law balances the interests of parents and the state in education, healthcare, and the general wellbeing of children. Despite the fact that children are at the center of emerging controversies, children’s rights are rarely discussed in state legislation debating the obligations and relationships between the state of Washington and parents. In education, for example, RCW 28A.605.005 finds “[p]arents are the primary stakeholders in their children’s upbringing.” While this may be true relative to the state, it overlooks the fact that children are the primary actors, agents, and rights bearers in their own personhood. This Article therefore considers ongoing …

Skeleton Weed Program 2024-25: Annual Report To Grain Growers, Department Of Primary Industries And Regional Development, Western Australia

Biosecurity published reports

Skeleton weed is a major pest of grain crops and can significantly reduce grain crop yields by competing for moisture and nutrients (mainly nitrogen), due to its deep perennial root system.

Skeleton weed is a declared plant in WA under section 22 of the Biosecurity and Agriculture Management Act (2007) and is assigned to control category 2 (Eradication) for the whole of the State, except in the Narembeen and Yilgarn Shires, where it is category 3 (Management).

Modelling indicates that under a nil management scenario, the cost to WA broadacre agriculture will be approximately $19.2 million per year after twenty …

Creating A Growth Mindset: A Mixed-Methods Program Review Research Study On The Effects Of Social–Emotional Learning On Retained Third-Grade Students, Casshaunda Davis

Electronic Theses and Dissertations

In Mississippi’s public elementary schools, third-grade students are faced with promotion–retention decisions from the third-grade state assessment and, when retention is the outcome, students often experience negative emotional outcomes. In our school setting, the challenge is how better to help our retained, third-grade students to cope with retention and to grow a strong mindset of self-efficacy towards academic achievement after experiencing retention. This mixed-methods program review research study was conducted to institute a social–emotional learning intervention program in our existing MTSS behavioral program offered to Tier III (at-risk) students. I followed an intervention program to foster a growth mindset for …

Analyzing The Impact Of Diet On Dusky Gopher Frog (Lithobates Sevosus) Development In Head Start Programs, Mckalyn Nelson

Honors Theses

Species are constantly impacted by human activity, directly or indirectly. One critically endangered species under investigation is the dusky gopher frog (Lithobates sevosus), which is an endemic species of frog found in the southeastern United States. Historically found from Louisiana to Alabama, a drought in 2002 narrowed the dusky gopher frog range even further. Head start programs have been shown to be effective in increasing population numbers; however, there is not much published data on the effectiveness of captive rearing diets for these programs. The dusky gopher frog head start program at the University of Southern Mississippi’s Lake …

Near-Infrared-Spectroscopy-Derived Oxygen Desaturation Rates During Post-Exercise Circulatory Occlusion As Predictors Of Cardiorespiratory Fitness Markers, Carstell Lee

Honors Theses

Cardiorespiratory fitness, measured as maximal oxygen consumption (VO₂max) is a critical predictor of all-cause mortality and overall cardiovascular health. Metabolic carts are the current gold standard for evaluation of VO₂max, but are inaccessible to most facilities and individuals, and are expensive ($20,000+). Near-Infrared spectroscopy (NIRS) has emerged as an accessible and affordable ($5,000-$10,000) alternative for evaluating skeletal muscle oxygenation kinetics and mitochondrial oxidative capacity. However, there is limited research in examining whether NIRS-derived oxygen desaturation rates can be a predictor of cardiorespiratory fitness markers (such as VO₂max and peak power output [PPO]), and whether these measurements show a superior predictive …