Digital Commons Network^™

The Practice Of The Communal Pot -Olla Común- By Low-Income Women As A Strategy To Face Hunger On The North Coast Of Peru, Ricardo M. Sabogal-Suji

Electronic Theses and Dissertations

During the COVID-19 pandemic in Peru, the ancient practice of the communal pot (olla común) has become even more popular. This consists of neighbors spontaneously organizing themselves to collect food to cook for needy people. Peru is characterized by informality and ontological precarity that persist over time regardless of the political context, leading to endemic food insecurity. The pandemic crisis further aggravated the situation of Peruvians, leading the Peruvian government to support the growing communal pots that had traditionally been autonomous. The food crisis has persisted in post-pandemic times, which is why communal pots have multiplied, many of them becoming, …

Assessing Trophic Pathways In The Southern Indian River Lagoon Using Fatty Acid Markers, Joedeelee Rigdon

Electronic Theses and Dissertations

The Indian River Lagoon (IRL) comprises over 200 Km of the Florida’s east coast and is a bar-built estuary making up one of the most biodiverse estuarine environments in North America. Toxins produced by increasingly frequent harmful algae blooms in the IRL are found throughout the food web, from zooplankton to fish, to apex predators. The impact of species characterized as harmful algae can be traced using fatty acid markers, as phytoplankton and algae that make up HABs produce characteristic poly-unsaturated fatty acids (PUFA), which have conservative ratios between trophic levels. This study measured the fatty acid composition of two …

Little Habits, Caitlin Rosolen

Electronic Theses and Dissertations

Little Habits is a body of work that explores the subject of coping mechanisms and defense mechanisms that manifest as psychological and physiological defenses resulting from long-term chronic stress and complex trauma. Emphasizing the physical tactility of flesh and bodily fluids, the use of soft, pliable natural fibers and glass beads and yarns, are purposefully found woven, entangled, and embedded within and through the reclaimed wood stretchers. Through mixed media installation, the series probes the intimate details of mechanisms in which symptoms of stress and trauma can manifest. Focusing on an overarching survey of maladaptive mechanisms, the work serves as …

Postpartum Depression And The Relation To Maternal Sensitivity In The Context Of Infant Fear, Ainsley Richards

Electronic Theses and Dissertations

The goal of this research was to examine if postpartum depression and maternal sensitivity are related, and how this relation manifests in mothers’ responses to their infants during unfamiliar mother-child interaction tasks compared to a routine interaction task. Participants included 55 mother-infant dyads. Dyads participated at one of three university sites across the United States. PPD data was collected from mothers when infants were 6 and 12 months old, while sensitivity data was taken when the infant was 12 months old. Results indicate that postpartum depression at 6 and 12 months is not predictive of maternal sensitivity within a non-clinical …

Investigating Treatment Planning Parameters For Proton Arc Technique In Pencil Beam Scanning (Pbs) Proton Therapy, Umesh Rana

Electronic Theses and Dissertations

Proton arc pencil beam scanning (PBS) proton therapy is a novel approach to treating complex cancer in the field of radiation therapy. It provides conformal dose coverage to the CTV while reducing dose to healthy tissues. Unlike traditional proton therapy modalities, such as intensity-modulated proton therapy (IMPT), which primarily relies on static beam delivery, proton arc utilizes a rotational approach to irradiate the tumor from a multitude of angles, utilizing an arc of proton beams. The successful clinical implementation of proton arc PBS technology necessitates the development and validation of advanced treatment planning optimization algorithms and treatment planning techniques to …

Wellness Among Bipoc Counselors-In-Training: Mediation Impact On Stress And Burnout, Javier E. Ponce

Electronic Theses and Dissertations

The purpose of this research study was to gather data on stress, wellness, and burnout levels from counselors-in-training (CITs) who identify as Black, Indigenous, and people of color (BIPOC) to compare them to norm groups and assess the mediating effect of wellness on the association between stress and burnout. The researcher conducted this study to aid counselor educators in incorporating wellness into interventions that can help BIPOC CITs not only reduce their stress and burnout levels but also augment their overall wellness. The final sample consisted of 118 BIPOC CITs who thoroughly completed a demographic questionnaire, Perceived Stress Scale-10, Five …

Here, There: Jewish Identities In The South Through The Lens Of Food, Charles George Pappas

Electronic Theses and Dissertations

This thesis examines the role that place performs in the creation of different Jewish identities in the South through the study of foodways practices. The first chapter provides a historical background of Jewish foodways and an analysis of two Jewish cookbooks and their recipes. These texts act as historical markers of the similarities and differences between varying diasporas across space and time and show how these elements impact Jewish culinary practices. Chapter two is centered around an oral history conducted with Jewish chef Laurence Faber and the places that have shaped his approach to the food served at his Knoxville …

Radiobiological And Dosimetric Comparison Of Imrt And Sbrt For Prostate Cancer Treatment Planning, Najmun Naher

Electronic Theses and Dissertations

Radiation therapy is one of the most effective and widely utilized methods for treating prostate cancer, employing high energy rays or particles to eradicate cancer cells. Among the available techniques, intensity-modulated radiation therapy (IMRT) and stereotactic body radiation therapy (SBRT) are commonly used approaches that enable the delivery of a conformal radiation dose to the target tumor while minimizing exposure to surrounding healthy tissues. This study presents a comparative analysis of these two treatment plans for prostate cancer based on radiobiological and dosimetric parameters. IMRT treatment plans for prostate cancer patients were collected, and corresponding SBRT plans were developed using …

Analyzing Asthma And Allergy Effects Of Immigrant Children In South Florida, Uma Roy

Electronic Theses and Dissertations

Through my research study, I have analyzed the waiting, suffering, and struggle of Hindu immigrants to access quality healthcare treatment in South Florida. I wanted to explore immigrant parents' perceptions and beliefs associated with specific Hindu cultural meanings as well as exercising specific rules and norms of behavior for treating asthma and allergies in their children. My ethnographic study reveals the immigrants' perspectives on their traditional healing system and the healthcare system in South Florida for their children's wellness, as they incorporate "plural medical systems". My research findings show how immigrants adapt to the healthcare system in a "highly stratified …

Exploring The Relationship Between Health Literacy And Health Behavior Intention Through Mediation Moderation Analyses, Christopher M. Boerum

Electronic Theses and Dissertations

Vaccine hesitancy is a complicated public health issue that could compromise the well-being of our communities, evident not only in the COVID-19 pandemic but also in the increasing occurrences of vaccine hesitancy toward long-established vaccines, leading to breakthrough cases of diseases such as measles. Several factors can impact this complex phenomenon, such as health education (HE), attitudes towards social media (SMA) and exercise (EA), chronic disease exposure/risk perception (CDR), and demographic variables.

This study examined the relationship between health literacy (HL), and health behavior intention. The eHeals assessment measured HL and an assessment of vaccine attitude (VA) measured health behavior …

Sleep Quality, Volumetric Brain Biomarkers For Ad, Executive Function, & Cognitive Decline In Older Adults, Layaly Shihadeh

Electronic Theses and Dissertations

Objective: Our aims were to examine differences in sleep quality sub scores and total scores across diagnostic groups cross-sectionally and longitudinally, correlate executive function scores and volumetric biomarkers of AD (prefrontal cortical and hippocampal volumes) with sleep quality scores, and explore how demographic variables may serve to moderate how sleep quality effects diagnosis. Method: 381 participants were classified into 3 diagnostic groups (Cognitively normal (CN), mild cognitive impairment (MCI), and dementia) based on the CDR global score. Prefrontal cortical volume, hippocampal volume, and PSQI total and sub scores were used as predictors of progression status. Daytime dysfunction, sleep duration, and …

Population Genetics Of Shallow And Mesophotic Corals And Sponges In The Gulf Of Mexico And Florida, Ryan J. Eckert

Electronic Theses and Dissertations

Population genetic analyses provide critical insights into biodiversity and resilience on coral reefs. This dissertation investigated the genetic connectivity and cryptic diversity of multiple foundational reef species, the corals Stephanocoenia intersepta, Orbicella faveolata, Montastraea cavernosa, and the sponge Xestospongia muta, across shallow and mesophotic reefs in the Flower Garden Banks National Marine Sanctuary (FGBNMS) and across marine protected areas on the Florida Reef Tract. Using a reduced representation genotyping approach, 2bRAD-seq, we generated genome-wide single nucleotide polymorphism (SNP) datasets for each species to assess patterns of population structure across regions and depth zones. Analyses uncovered cryptic lineages …

Institutional Learning And International Student Enrollment: A Case Study Of Perceptions Of Practice, Debra Szabo

Electronic Theses and Dissertations

This dissertation examines the application of Peter Senge’s Learning Organization Theory at Florida Atlantic University (FAU), focusing on administrators' perceptions of institutional learning amid increasing international student enrollment. Higher education institutions must balance market-driven behaviors with collaborative learning environments as they navigate a competitive global landscape.

The study stresses the need to investigate institutional learning outcomes and the impact of rising international student enrollment on university policies, procedures, and organizational learning. It explores the relationship between espoused theories, strategic goals designated by FAU, and theories-in-action, which reflect actual practices in recruiting and supporting international students. By integrating Argyris and Schön's …

Tiny-Physics: A Compact Large Language Model For Physics Word Problems On Mobile Devices, Akhil Vallala

Electronic Theses and Dissertations

This thesis offers Tiny-Physics, a compact large language model optimized for solving physics word problems on mobile devices. While Small Language Models (SLMs) offer potential for on-device learning, there is a lack of domain-specialized models for physics. This research fine-tunes smolLM2-360M, a state-of-the-art SLM, using a combination of publicly available datasets (e.g., camel-ai/physics) and a novel synthetic dataset generated through a multi-agent system based on GPT-4o and 1000 Solved Problems in Classical Physics.

The fine-tuning process incorporates both supervised and instruction-tuning methods, including LoRA for parameter-efficient training. The resulting model is converted to GGUF format for deployment on resource-constrained mobile …

Factors Associated With Contraceptive Discontinuation Among Women In The U.S., Moradi Aljadani

Electronic Theses and Dissertations

Background: Contraceptive discontinuation is a significant public health concern in the United States, contributing to unintended pregnancies and associated health, social, and economic consequences. Despite the availability of a wide range of contraceptive methods, many women discontinue use prematurely due to a variety of personal, social, cultural, and systemic factors. However, limited research has comprehensively examined these factors at the national level, particularly within a theoretical framework that captures the multidimensional influences on contraceptive decision-making. Objective: This study aimed to assess the factors associated with contraceptive method discontinuation among women in the U.S, guided by Ray’s Theory f …

Quackery Unmask’D: Defining Quackery In English And American Vernacular Medical Works, C. 1600-1800, Katherine Rose Horan

Electronic Theses and Dissertations

This thesis argues that, from 1600 to 1800, healers in both England and America conceptualized quackery through an evolving understanding of what made a medical practitioner “acceptable.” Through a close examination of vernacular medical print published in both England and America throughout the seventeenth and eighteenth centuries, this thesis complicates earlier understandings of quackery as being disconnected from politics and social biases. Instead, medical authors used social position—specifically gender, race, and religion—and medical philosophy as ways to identify quacks. In England, the Royal College of Physicians used quackery to delegitimize their opponents, while critics of the College did the same. …

Improving Teacher Effectiveness, Keith D. Powell

Electronic Theses and Dissertations

This applied action research with a program evaluation aimed to determine if the Improving Effectiveness Three (IE3) program which is composed of professional development on the Professional Growth System (PGS), engagement in Professional Learning Communities (PLCs), and participation in the New Teacher Academy (NTA) improves teacher effectiveness at North Panama High School (NPHS) as measured by the Mississippi Professional Growth System.

For the past five years, the United States has struggled to fully staff public schools with highly effective teachers. This struggle is increasingly difficult in several southern states. North Panama High School, surrounded by more affluent school districts, experiences …

Creating A Mentorship Program For Assistant Principals To Improve Instructional Leadership, Shadonica Sharee Scruggs

Electronic Theses and Dissertations

Effective instructional leadership is essential for strengthening teachers’ instructional capacity and improving student outcomes. However, many assistant principals often lack the mentorship and targeted professional development needed to thrive in this critical role. Providing them with the right support can bridge this gap, empowering them to become transformative leaders in their schools. In this study, I explored the development and implementation of a mentorship program designed to strengthen the instructional leadership skills of assistant principals with the ultimate goal of enhancing student learning outcomes. Using an applied research design, I collected data through surveys, focus groups, and interviews with assistant …

Exploring The Perceptions Of Non-Traditional Graduate Students About Their Experiences With Social Presence In Online Professional Degree Programs, Courtney Elizabeth Smith

Electronic Theses and Dissertations

The rise of virtual learning has been significant in recent years, with the percentage of degree programs offered exclusively online increasing from 15.4% in 2019 to 60% in 2022. While online courses provide flexibility and convenience, concerns have emerged regarding student engagement, learning outcomes, and satisfaction. Due to limited interactions with peers and instructors, virtual students often struggle with motivation and experience higher levels of anxiety, stress, and isolation compared to their in-person counterparts.

A key factor influencing student success in online courses is social presence, defined as the extent to which learners feel connected and engaged with their instructor …

Framing Ncaa V. Alston: Amicus Briefs’ Competing Visions Of Student-Athlete Compensation, Stuart A. Sutton

Electronic Theses and Dissertations

The purpose of this qualitative content analysis was to examine how amici curiae frame policy preferences in amicus briefs submitted before the United States Supreme Court in NCAA v. Alston (2021). The questions addressed in this study were what dominant policy frames did interest groups use to frame policy preference in NCAA v. Alston (2021), and which (if any) policy frames in the amicus briefs emerged in the written opinions of the United States Supreme Court? This analysis indicates the complexities and intricacies of competing vision of student-athlete compensation within the persuasive lens of amicus briefs through interest groups. In …

The Moderating Role Of Engagement On Mindfulness, Sarah Rose Wilson

Electronic Theses and Dissertations

The present study examined the moderating role of engagement in a technology-based mindfulness intervention among college students. Drawing on archival data from a prior randomized controlled trial, the analysis focused on whether self-reported engagement influenced changes in mindfulness as measured by the Five Facet Mindfulness Questionnaire (FFMQ). Seventy-five participants in the mindfulness intervention group received brief psychoeducational and practice-based text messages over a 21-day period. A moderation analysis using PROCESS macro tested whether engagement moderated the relationship between pre- and post-intervention mindfulness scores. Results indicated that engagement did not significantly moderate changes in total FFMQ scores, providing no support for …

Transcriptional Regulation Of Mouse Line-1 Subfamilies, Karabi Saha

Electronic Theses and Dissertations

No abstract provided.

Physiological And Genetic Studies Of Hydrotropism In The Maize Primary Root, Muyu Gu

Electronic Theses and Dissertations

No abstract provided.

Evaluating Dietary Consequences On Body Mass And Thermal Heat Flux Of North American Bison (Bison Bison) Yearling Heifers, Kendall Marie Wald

Electronic Theses and Dissertations

No abstract provided.

Deciphering Genetic Contributions To Antibiotic Persistence: Insights From Multi-Gene Knockout Studies, Elise K. Schweer

Electronic Theses and Dissertations

Antibiotic resistance is a critical global health challenge, complicating efforts to treat bacterial infections effectively. Antibiotic persistence plays a significant role in driving resistance. Persisters are a subpopulation of non-dividing bacterial cells that often evade lethal antibiotic treatment. Once antibiotics are removed, these cells "resurrect," resuming growth and may lead to relapsing infections. Notably, the progeny of persister cells exhibit a heightened tendency to acquire mutations or incorporate antibiotic resistance genes, further compounding the challenge of antibiotic resistance. In our recent study, we knocked out seven hypothetical genes and observed a significant reduction in persister levels. Compared to the wild …

Optimizing Heifer Development On Dormant Rangelands By Integrating Precision Livestock Technologies With The Range Supplementation Model And The Evaluation Of Short-Term Rotations Of Precision Technology On Plant Communities, Hadley Ann Dotts

Electronic Theses and Dissertations

Heifer development on dormant rangelands offers a cost-effective alternative to feedlot or drylot systems. However, traditional bunk supplementation methods often result in uneven intake, inefficient feed use, and ecological degradation around static feeding sites. This thesis evaluated the integration of precision livestock technologies and a dynamic Range Supplementation Model to improve individual animal performance, weight uniformity, and rangeland sustainability in extensive heifer development systems in the Northern Great Plains. The first study involved a seven-month trial (November 2023–May 2024) with 50 yearling Angus heifers grazing dormant native rangelands at the SDSU Cottonwood Field Station. Heifers were stratified into two treatments: …

Biotransformation Of Camelina Meal Via Pretreatment And Fermentation For Functional And Nutritional Upgrading, Ram Kumar Bhattarai

Electronic Theses and Dissertations

Camelina sativa, an oilseed crop of the Brassicaceae family, has seen increased cultivation in North America in response to the rising demand for biofuels over the past two decades. With this growth, camelina meal, a byproduct of oil extraction, has emerged as a promising yet underutilized resource, particularly for applications in animal nutrition. This study aimed to evaluate the potential of camelina meal as a substrate for submerged fungal fermentation and to examine how this bioconversion affects its physicochemical and nutritional properties. The influence of mild pretreatments (unwashed, washed only, and washed/dried and ground) on fermentation outcomes was also assessed. …

Target Cell-Associated Cd47 Suppresses Nadph Oxidase Activity In Macrophages During Antibody Dependent Cellular Phagocytosis, Seuly Akter

Electronic Theses and Dissertations

CD47-SIRPα signaling is a well-known immune checkpoint that suppresses macrophage-mediated antibody-dependent cellular phagocytosis (ADCP). In this study, we explored how CD47 influences reactive oxygen species (ROS) production driven by Fcγ receptor (FcγR) signaling. Our results show that macrophages produce significantly more ROS when encountering IgG coated target cells lacking CD47.Polarization with IFNγ further amplified this effect. ThusCD47-SIRPα interactions limit phagocytosis and suppress oxidative ROS production by macrophages. We found that CD47 blockade and IFNγ stimulation enhanced ADCP through distinct mechanisms. CD47 blockade removed the inhibitory "don't eat me" signal supporting ADCP and ADROS. Similarly, IFNγ enhances ADCP by upregulating FcγRI …

In Defense Of Intellectual Autonomy, Paisley Agyare Boaitey

Electronic Theses and Dissertations

Recent attention in virtue and social epistemology has been devoted to analyzing intellectual virtues. However, intellectual autonomy is underappreciated and has been underexplored. The lack of specificity about the formal character of autonomy makes evaluating it as an intellectual character trait and virtue difficult. Here, I will examine extant accounts of intellectual autonomy and show why puzzles about them remain. I then offer intellectual autonomy under a compositional framework. Ultimately, I aim to show that intellectual autonomy—when adequately conceived—is a viable intellectual virtue that epistemic agents in an intellectual community [ought] to cultivate and maintain.

Essays On Corporate Finance, Keshav Raj Bhattarai

Electronic Theses and Dissertations

In the first essay, we investigate how corporate culture relates to firm performance, focusing specifically on market share growth following an increase in competition in the product market. Using industry-level import tariff cuts in the United States as an exogenous shock, we find that firms with strong cultures tend to experience higher market share growth after a reduction in import tariffs. We also identify two distinct cultural values – the strong-people focus and the strong-technology focus – and find that only firms with a strong-people focus are likely to experience market share growth when faced with intensified competition. In addition, …