Digital Commons Network^™

Discrete Cell Signaling Differences Cause Female-Dominant Il-33 Responses In Mast Cells, Tania D. Maldonado

Theses and Dissertations

Many allergic diseases are more common and severe in women than in men. A key component of allergic inflammation is IL-33, a cytokine released by epithelial cells after allergen exposure. Because mast cells are a central early responder in allergic disease and are activated by IL-33, we investigated sex differences in mast cell responses to IL-33. We first found that male mast cells expanded poorly in standard RPMI-based culture media containing phenol red, which has estrogenic properties. Male cells also responded poorly to IL-33 when cultured with in media containing phenol red. In contrast, female mast cells expanded 3-fold less …

Ontological Runtime Monitoring For Mission Engineering, Alexander R. Will

Theses and Dissertations

The advent of the Urban Air Mobility (UAM) concept will bring low-altitude aviation to civilians through passenger and cargo transport. However, the prospective vehicles in UAM studies are predominantly autonomous, raising questions about their efficacy and stability in densely populated urban areas. At the same time, extensive work has been performed to define a new branch of systems engineering that focuses on runtime behavior, synchronization, communication, and task allocation.This field is known as "mission engineering". Mission engineering has been deployed in military scenarios to model human-autonomy cooperation. By applying the concepts from this field to UAM, full systems-of-systems can be …

The Development And Initial Validation Of A Measure Of Professional Mentoring Engagement Among School Counselors, Emily Kitching

Theses and Dissertations

This study describes the development and initial validation of the Mentoring Engagement Scale (MES), a self-report instrument designed to measure a person’s level of engagement in professional mentoring. Despite emerging evidence that professional mentoring may serve as a protective factor against the burnout and stress associated with school counselors’ roles and responsibilities, existing measures of mentoring are limited by weak documentation of development procedures, mixed psychometric support, and limited practical applicability. In two phases, the present study aimed to (1) evaluate content validity and systematically refine items grounded in Kahn’s (1990) theory of engagement and (2) investigate the preliminary psychometric …

Foreign-National Families, Education, And Parenting: Unpacking The Influence Of Cultural Transitions On Child-Rearing And Expectations, Yuqi Zhang

Theses and Dissertations

This qualitative study examines how highly skilled foreign-national parents navigate parenting and educational decision-making within the context of cultural transition in the United States. While existing research on foreign-national parenting has largely focused on socioeconomically disadvantaged populations, less is known about families who possess substantial educational and professional capital. Despite these advantages, these parents encounter unique challenges related to institutional navigation, identity negotiation, and social constraints. Guided by Bronfenbrenner’s bioecological theory, Coleman’s social capital theory, Berry’s acculturation framework, and Yosso’s community cultural wealth model, this study explores how cultural background and migration experiences shape highly skilled foreign-national families’ parenting beliefs …

Pingbongbilladingdong: Abjection And Comedy In Art, Leroy A. Winter

Theses and Dissertations

As of late, my work has dealt with themes of collapse and comedy, pertaining specifically to faded ideals of individualism in art. My thesis installation, titled Pingbongbilladingdong, is a testament to this tension, portraying a reconstruction of the disheveled chaos of the artist’s studio. In this paper, I use this installation as a means to further explore the ways that abjection and comedy intersect in art, and how myself and others repurpose the faded glamor of Ab-Ex as a means to probe this overlap. Serving as an allegory for my experience with the studio, Pingbongbilladingdong presents an image of the …

Dietary Acculturation, Dietary Inflammatory Potential, And Metabolic Syndrome Among Immigrants In The United States: A Mixed-Methods Approach Using Nhanes And Qualitative Data, Esse G. Foka Nzaha

Theses and Dissertations

Background and Objectives: Immigrants in the United States undergo acculturation — a process of sociocultural and behavioral adaptation to the host country. Increasingly, behavioral adaptations have been associated with cardiometabolic health and chronic disease risk. Metabolic syndrome (MetS), a cluster of conditions including abdominal obesity, elevated blood pressure, impaired fasting glucose, elevated triglycerides, and reduced HDL cholesterol, is a major risk factor for type 2 diabetes mellitus, cardiovascular diseases and other chronic diseases, including cancer. Despite the growing immigrant population in the U.S., the role of diet and dietary acculturation in MetS development remains poorly understood in this population. This …

Mediator: Ornament As A Visual Language Of The Transcendent, Selma Fejzullaj

Theses and Dissertations

Adolf Loos’s declaration that “ornament is a crime” defined modernist design, establishing a legacy that dismisses ornamentation as wasteful and regressive. This research questions that legacy by repositioning aesthetics as a divinely grounded value, inspired by the Qur’anic vision of Paradise. In this celestial realm, beauty is not wasteful but a manifestation of divine perfection. Conceptually, the project reclaims ornament as a vital tool for contemplating metaphysical themes. Materially, it reimagines glass, shifting it from modernist "radical honesty" to a medium of layered depth. Recombining traditional Islamic ornamentation practices such as Girih and Chaharbagh, the project evokes the Qur’anic vision …

Synthesis Of Iso-Dityrosine, A Potential Biomarker Of Neurodegenerative Diseases, Brandon R. Knouse

Theses and Dissertations

As the population of the United States continues to age, the prevalence of neurodegenerative disorders is rising, increasing the societal and clinical burden of diseases such as Parkinson’s disease and dementia-related conditions. Lewy Body Dementia (LBD), the second most common cause of dementia, shares underlying neuropathological features with Parkinson’s disease, including the aggregation of misfolded α-synuclein into Lewy bodies and Lewy neurites. Current diagnostic approaches rely heavily on cerebrospinal fluid biomarker analysis; however, significant overlap exists among biomarkers associated with Alzheimer’s disease and other neurodegenerative conditions, limiting diagnostic specificity. Emerging evidence suggests that oxidative modifications of α-synuclein, particularly the formation …

Proof Of Recovery: A Model To Enhance Data Integrity In Data Management Systems, Gustaf Barkstrom

Theses and Dissertations

Businesses lose millions of dollars every year when they can’t restore data from backups. Research shows that Disaster Recovery Plan (DRP) testing is not conducted frequently enough, nor are records maintained that demonstrate full data recovery from backups. This work introduces a design science artifact called PRTOK that aims to increase DRP testing. The design science artifact is a software solution that integrates with Data Management Systems (DMS)

such as iRODS and DSpace, and can work with formats such as HDF5 and BagIt. Proof-of- recovery records, or tokens, are recorded in a replicated, resilient, and indelible proof-of- authority blockchain data …

Local Lung Delivery Of Ginkgetin For Therapeutic Intervention In Lung Fibrosis, Cimone L. Richardson

Theses and Dissertations

Lung fibrosis (LF) is a progressive, irreversible pathological condition in the lungs that is ultimately fatal. Current drug treatments (nintedanib, pirfenidone, and nerandomilast) slow disease progression but cause significant systemic adverse effects due to oral administration. Transient receptor potential vanilloid 4 (TRPV4), a mechanosensitive ion channel, may play a role in LF progression and represent a novel anti-LF target. Ginkgetin (GKT), a natural biflavonoid, is a potent TRPV4 inhibitor with anti-inflammatory and antioxidative properties. Local lung delivery could achieve high local lung concentrations while minimizing systemic exposure. Accordingly, this project evaluates GKT's therapeutic intervention efficacy in LF via local lung …

Managing Identity, Claiming Expertise, And Emotional Labor: A Constructivist Grounded Theory Of The Experience Of People With Serious Mental Illnesses In Primary Care, Jeffrey Ciak

Theses and Dissertations

People with serious mental illnesses (SMI) die 15 to 20 years before their peers without mental illness primarily due to chronic physical health conditions. Preventative care and treatment for chronic physical health conditions primarily occurs through primary care, but the experience of people with SMI in primary care is understudied. This constructivist grounded theory dissertation explored the experiences of people with SMI in primary care. Theoretical sampling resulted in 19 participants who were adults with SMI and long-term anti-psychotic use. Data was collected through one-to-two-hour long intensive interviews. The analytical process occurred concurrently with data collection. The abductive analytical process …

Instructional Systems Design In Lesson Planning For Substance Use Treatment Groups: A Mixed Methods Exploratory Study, Michelle Robin Gould

Theses and Dissertations

This study explored lesson planning for substance use disorder (SUD) treatment groups, investigating the presence of components from the ADDIE (Analysis, Design, Development, Implementation, Evaluation) instructional systems design (ISD) process in routine facilitator lesson planning practices. Using an exploratory mixed-methods convergent parallel design, data were collected via an online survey featuring closed- and open-ended questions regarding self-reported planning activities and perceived effectiveness. Quantitative analysis confirmed that SUD facilitators perform tasks associated with all five ADDIE phases. Qualitative findings showed that facilitators perceive themselves as effective planners despite logistical and organizational constraints. However, facilitators do not appear to conceptually link instructional …

Sensory Constellations, Madaline K. Gardner

Theses and Dissertations

This thesis situates neurodiversity within the field of fine arts by integrating disability studies, institutional critique, and material practices in painting and printmaking. Through visual analysis and studio-based research, the project examines how tactile engagement, color relationships, and repetitive mark-making can articulate embodied experiences of neurodivergence. It challenges dominant institutional frameworks that pathologize neurodivergent behaviors by reframing stimming as a generative and communicative practice. The resulting body of work includes both image-making and the creation of tactile objects designed to facilitate sensory interaction. The thesis proposes alternative ways of understanding artistic practice and accessibility within art institutions.

Comorbid Psychosis In The General Population, Mariam Sankoh

Theses and Dissertations

Psychosis is a complex psychiatric phenotype characterized by substantial heterogeneity in symptom presentation, psychosis diagnosis, comorbidity patterns, and genetic architecture across diverse populations in the general population. Despite advances in psychiatric epidemiology and genomics, important gaps remain in understanding how psychosis symptoms and psychosis-related diagnoses manifest across racial and ethnic groups and how evolutionary genomic factors may contribute to disease risk and cross-ancestry genetic prediction. This dissertation, Characterizing Comorbidity in Psychosis in the General Population, integrates epidemiological, psychometric, and evolutionary genetic approaches to examine psychosis across diverse populations.

Aim 1 examined racial and ethnic differences in psychosis comorbidity patterns …

A Case Study Of Employees’ Perception Of Leadership Styles In Law Firms, Naylet M. Sanchez

Theses and Dissertations

This applied dissertation explored employees' perceptions of their supervisors’ leadership styles and how those perceptions shape their job performance and satisfaction within a mid-sized personal injury law firm operating across multiple offices in the Southeastern United States. The effectiveness of leadership styles in law firms significantly influences employee performance, productivity, and organizational success, yet the unique contextual factors of legal practice environments have remained substantially underexplored in the leadership literature. Much of the existing research has focused on general organizational settings rather than the knowledge-intensive, hierarchical, and high-pressure dynamics that characterize law firms. This applied dissertation was designed to address …

The Effectiveness Of Behavioral Skills Training In Enhancing Teachers’ Ability To Write Specific, Measurable, And Individualized Iep Goals Targeting Quality-Of-Life Skills, Emilia Endean

Theses and Dissertations

This applied dissertation sought to assess the effectiveness of a behavior skills training (BST) protocol in improving teacher behaviors for writing high-quality individualized education plan (IEP) goals that target quality-of-life (QoL) domains. High-quality IEP goals that target both academic and functional repertoires are required by the Individuals with Disabilities Education Act (2004) and are essential for students with disabilities to achieve meaningful outcomes. BST is an effective intervention for teaching a variety of skills. No prior research has explicitly examined the application of BST for teacher professional development in writing IEP goals.

This single-subject study used a time-lagged multiple probe …

Fairness: Examining Support And Resources Available To Respondents In Title Ix Cases, Emanuel Jerome Oliver

Theses and Dissertations

This phenomenological study explored how higher education institutions develop Title IX procedures to ensure respondents receive fair treatment from the outset of the adjudication process. It also examined how colleges and universities provide resources and support to respondents throughout the Title IX process. The study used semi structured interviews with Title IX Coordinators at various higher education institutions to understand how they have developed practices to support respondents.

Findings revealed that higher education institutions have developed various methods to support respondents in the Title IX process. The goal of the Title IX process is to ensure that respondents receive the …

Human Resources Professionals’ Perceptions About Employment And Retention Of Women With A Substance Abuse History: A Qualitative Study, Mary Harris

Theses and Dissertations

This study was an exploration of human resources professionals’ (HRP) perceptions about employment and retention of women with a substance abuse disorder history. Job embeddedness was used as a critical lens to understand HRPs’ motivations for their actions and to gain insight into their choices.

A generic qualitative methodology was used to understand the complexity of HRPs’ experiences in employing and retaining women with substance use disorder history. The data-collection method consisted of semi structured interviews of 10 HRPs from midsize organizations in the Southeast Florida region.

The results of the thematic analysis revealed 10 themes that addressed the research …

The Influence Of Haitian Immigrants’ Culture On Academic Outcomes At Elementary Level, Tonnette Samuels

Theses and Dissertations

This qualitative study explored how teachers, parents, and administrators perceived the influence of Haitian cultural values and practices on the organizational culture and academic outcomes of elementary students in a southern United States county. Guided by the resource-based view theory, which frames culture as an intangible organizational asset, the study used interpretative phenomenological analysis to examine the lived experiences of five participants, including three teachers, one parent, and one school administrator. Data were collected through semi structured interviews and analyzed to develop personal experiential themes for each participant and group experiential themes across cases.

The study’s findings generated four group …

Graduate Student Retention: Examining Why Master’S Students Leave And What Motivates Their Return In A Large Public University System, Sonja Prophete

Theses and Dissertations

Graduate student persistence is a relatively unexplored area in the literature of higher education studies; specifically, at a multi-institutional scale at the master's level. This research study examines the factors which cause students to discontinue their master's degrees, and what conditions could possibly support them returning to their program at a large urban public university system. The current study was guided by Hoyt and Winn's (2004) distinction between non-returning students, and Bean & Metzner's (1985) theoretical model of student attrition. A sequential mixed-methods study was conducted to examine the institutional and environmental influences on students' decision-making processes.

The quantitative data …

Timing And Stability Of Uav Operations In Smart City Environments: Experimental Analysis And Design Implications, Rabia Ipek Yasar

Theses and Dissertations

This thesis investigates the deployment and performance of unmanned aerial vehicles (UAVs) within the Virginia Commonwealth University Open Cyber City (OCC) testbed. The study focuses on evaluating real-time indoor positioning performance using the Crazyflie drone platform. High-precision position measurements are obtained using the Vicon motion capture system, enabling analysis of the latency between the drone’s actual position and the system-reported position. In a closed-loop control system, the time difference between the position measurement and the application of the control command is called the system delay. Both stationary (hovering) and trajectory-following experiments are conducted to evaluate system performance. Communication delays in …

Cultural Heritage Curriculum And Student Identity Development: A Mixed-Methods Study, Alexus Corley

Theses and Dissertations

This applied dissertation was designed to examine the influence of a cultural heritage curriculum on first-grade students’ cultural knowledge, awareness, and understandings of culture. Specifically, the study investigated the extent to which participation in a 4-week cultural heritage curriculum influenced students’ knowledge of cultural history and contemporary contributors, their understandings and perspectives about culture, and the convergence of quantitative and qualitative findings.

Using a qualitative-dominant mixed-methods research design, the study was conducted with 19 first-grade students enrolled in a Title I elementary school in Central Florida. Quantitative data were collected using the researcher-developed cultural knowledge preintervention and postintervention assessment and …

In Search Of The Soul Of Creativity: Authorship, Agency, And Meaning In Refractive Collaboration With Generative Ai, Fatima Nazir

Theses and Dissertations

When images can be generated in seconds, what remains uniquely human in the act of creation? In Search of the Soul of Creativity: Authorship, Agency, and Meaning in Refractive Collaboration with Generative AI investigates where authorship, agency, and meaning reside within design practices mediated by generative AI. Rather than using AI to produce predictable results, this research deliberately relinquishes control to observe how generative systems interpret language through their own learned associations. Through a practice-led investigation across four generative models within the Higgsfield platform, user prompts were progressively shortened from full sentences to single words, revealing recurring patterns and cultural …

Improving Middle School Students’ Scores On Math Word Problems Through Reading Comprehension, Diane M. Burgess

Theses and Dissertations

This applied dissertation was designed to address the poor performance of middle school students on math word problems attributed to the lack of reading comprehension skills. A review of standardized math assessments for middle school students confirmed that the greater proportion of questions is made up of word problems. Despite having strong mathematical skills, middle school students are likely to fail to find the correct solutions for math word problems. In the middle school classroom, the development of reading comprehension skills and mathematical abilities are tasks required of different teachers. Math teachers at a middle school in Florida did not …

Preferred Practices For A Student Support Services Program To Improve Retention Of African-Caribbean Students Enrolled In U.S. Universities, Jean F. Edouard

Theses and Dissertations

The problem addressed in this research was the high attrition rate of African-Caribbean students enrolled in U.S. universities. This study aimed to ascertain preferred practices in student support services programs to improve the retention of African-Caribbean students enrolled in U.S. higher education institutions. African-Caribbean students come to the United States with premigration experiences (e.g., language, cultural differences, and financial constraints). This generic qualitative study used semistructured Zoom interviews lasting 45–60 minutes with 12 African-Caribbean students who left their country of origin after age 12; interviews offered insight into their lived experiences and perceptions of U.S. higher education institutions. This study …

The Investigating Factors Affecting Teacher Retention In Rural Areas, Lajada Robinson

Theses and Dissertations

This dissertation investigated the factors influencing teacher retention in Mississippi's rural communities. The purpose of this study was to identify the specific variables that contribute to teacher retention in rural areas within Mississippi and to investigate strategies for improving teacher recruitment, retention, and job satisfaction. A mixed-methods research design was utilized, which included quantitative surveys and qualitative interviews with teachers, administrators, and education stakeholders in rural Mississippi.

By conducting a mixed-methods research design incorporating quantitative and qualitative interviews, the study sought to collect comprehensive data from teachers, administrators, and education stakeholders in rural Mississippi. The study explored key factors such …

The Perceptions Of Parents, Teachers, And Administrators On The Transition Of Latino Migrant Students Into Colleges, Sylma Samuel Ferreira

Theses and Dissertations

This qualitative case study examined the perceptions of Latino migrant parents, teachers, and school administrators regarding barriers affecting Latino migrant students’ transition to higher education in rural Mississippi Delta schools. Guided by achievement goal theory and culturally responsive pedagogy, the study explored how structural, cultural, and institutional factors shape students’ educational pathways. Data were collected through semi-structured interviews with 15 participants, including parents, teachers, and administrators.

Findings revealed that Latino migrant students face interconnected barriers to higher education, including financial constraints, language barriers, family responsibilities, and limited access to college preparation resources and transportation. Participants emphasized the influence of family …

A Qualitative Study Of Teacher Perceptions Of Reading Proficiency, Latia Tyler

Theses and Dissertations

This applied qualitative dissertation was constructed to provide insight into the experiences of teachers who provide reading instruction for third grade students at the target school. Seven teachers engaged in semi structured interviews that sought to examine their perceptions on their abilities in teaching reading instruction, their perception on school supports, their perceptions on reading proficiency and factors that contribute to it. Additionally, comprehensive reading plans, published by the state of Florida, were examined to further understand the perceptions of teachers alongside district intended approach for reading instruction.

Thematic analysis of data revealed eight key themes including gaps in foundational …

The Continuity And Fluidity Between Emergent Literacy Skills And Literacy Acquisition, Shiesha D. Otokina

Theses and Dissertations

This research study was undertaken because emergent literacy skills are crucial in helping children develop their reading abilities. Research suggests that early intervention is a key strategy for closing the achievement gap, and that early literacy skills develop as early as when children begin to communicate verbally and nonverbally. Studies show that the larger a child's vocabulary is, the quicker they learn to read.This study examined the significance of reading development and a child’s ability to acquire reading skills across the stages of reading acquisition.

This study compared student scores in the experimental and control groups to determine whether the …

The Impact Of Sports Betting Legalization On Marital Status, Hosea Gitonga Njogu

Theses and Dissertations

This study examines the causal Impact of sports gambling legalization on marital stability in the United States using data from the Current Population Survey Annual Social and Economic Supplement (CPS-ASEC) and the American Community Survey (ACS) from 2013 to 2024. The analysis leverages variation in the staggered adoption of state-level sports gambling laws and applies two-way fixed effects, event-study, and the Callaway and Sant’Anna (2021) difference-in-differences estimators, controlling for geographic and individual characteristics. Legalization increases divorce rates by 0.42 percentage points in the CPS and 0.51 percentage points in the ACS, corresponding to increases of 2.4% and 2.6%, or approximately …