Digital Commons Network^™

Association Of Hiv Status And Other Minoritized Identities With Psychiatric Diagnoses Among Transgender And Gender Diverse Individuals In The All Of Us Research Program, Fanghui Shi

Theses and Dissertations

Background: Transgender and gender diverse (TGD) people, whose gender identities or expressions differ from the sex assigned at birth, are disproportionately affected by adverse health outcomes, including various psychiatric diagnoses such as depression, anxiety, stress, and substance use disorders. The Gender Minority Stress Model emphasizes that TGD people face both proximal stressors at a personal/individual level (e.g., internalized stigma) and distal stressors at a societal level (e.g., discrimination) due to their minority status, which largely contributes to their increased risk of psychiatric diagnoses. Despite these health disparities, there is a paucity of gender identity data collected in large population-based health …

Communicating About A Nicotine Reduction Policy Among People Who Use Little Cigars And Cigarillos, Charity Afi Ntansah

Theses and Dissertations

The U.S. Food and Drug Administration (FDA) has proposed rulemaking to reduce the nicotine content in cigarettes and other combusted tobacco products to non-addictive levels. A very low nicotine content (VLNC) policy aimed primarily at cigarettes could drive people to other combusted products like little cigars and cigarillos (LCCs), potentially undermining its effectiveness. Expanding the policy to include LCCs requires effective messages for people who use LCCs. This dissertation explores how to communicate the reduced nicotine policy to people who use LCCs. The research recruited four populations with the highest prevalence of cigar use: African American and White males and …

Social Media Use And Interactivity: An Application Of Uses And Gratifications, Patrick Bush

Theses and Dissertations

Accessing news media and the coverage of current events has become streamlined and exponentially easier to access due to the explosive growth of internet usage and by extent the increase of social media usage. As this form of media continues to evolve and becomes not only more accessible, but accepted by a variety of audiences, some parties may seek to find or create their own public spheres of influence online to share information and develop conversations relevant to the participants therein. It is here where the concept of digital storytelling becomes a heavy influence on how the individual not only …

Lactobacillus Rhamnosus Interactions With Foodborne Pathogens And Impact On Plant Productivity In A Model Hydroponic System, Esther Titilope Oginni

Theses and Dissertations

Food production is a global problem, and this has been further compounded with changes in weather patterns necessitating the need for a sustainable approach to production. Chapter 1 introduces the broad concept of the Control environment agriculture (CEA) and then narrows it doe to the hydroponic system its food safety risks. The CEA has been employed alongside conventional practices methods to improve meet the demand for food without placing pressure on the land available. Foodborne outbreaks have been recorded in the production medium and are therefore susceptible to contamination. In Chapter 2, the study focused on using Lactobacillus rhamnosus and …

Campus Principals’ Actions And Perceptions That Contribute To The Direct Impact Of Teacher Retention, Efrain D. Reyna

Theses and Dissertations

This study focused on factors that suburban principals could perform to increase teacher retention. A suburban school district in the southwest area of Texas was selected to participate in this research. Principals were chosen and interviewed. Teachers from the selected school district were chosen to participate in a focus group. This qualitative single case study research was focused on the individual perspectives from six different principals, and eighteen teachers. Both participant groups, principals and teachers, were then interviewed to discover if the principal’s actions directly impacted their decision to remain teaching.

Analyzing Teachers' Perceptions Of A Principal's Instructional Leadership Practices On A Dual Language Campus Using The Blase And Blase Reflective Growth Model, Selene Canales-Garcia

Theses and Dissertations

As the research base in support of dual language instruction become stronger and more widely recognized, dual language instruction program popularity has risen and the number of programs implemented across the United States has grown (Christian, 2018). Demand for qualified teachers and school administrators is high, but teacher supply has not risen commensurately (Kennedy, 2018b). Therefore, the problem lies in principals having to prepare and provide the necessary supports and professional development for bilingual teachers. The purpose of this research is to explore teachers' perceptions of the principal's instructional leadership practices using the theoretical framework of the Blase Reflective Growth …

Habitat Restoration Along The U.S.-Mexican Border Examining Collaborative Governance For The Bahia Grande, Mya Jude Brown

Theses and Dissertations

The Bahia Grande, a 6,500-acre tidal basin in southeastern Cameron County, Texas, once provided habitat for numerous species. Construction projects, such as the Brownsville Ship Channel, altered ecosystem functions and separated it from its water source, reducing it to a dried wetland. In 2005, restoration initiatives reconnected the Bahia Grande to a water source through the Carl Joe Gayman channel, and additional restoration efforts continued. Despite this progress, this area had notable deficiencies in management efforts due to resource scarcity, limited research, and a lack of public awareness. This research investigates the presence and effects of management strategies on the …

Viewing Ir Through A Unicolonial Lens: A Case Study On The Effects Of Cultural Recognition On State Behavior, Andrew Viera

Theses and Dissertations

The following thesis utilizes the concept of unicoloniality, a process found within several ant species, to analyze the aggressive behavior and alliance-forming behavior of states. Through the unique lens of ant colony behavior, this study creates a new variable for quantifying culture that measures whether two states can recognize each other based on their cultural identity. Utilizing this noble variable, a logistic regression model was run to test the impact of cultural recognition on state behavior. The results indicated that cultural recognition had no effect on the decision of a state to join an alliance or engage in a militarized …

Interleukin 24 Induces Apoptosis Through Glycogen Synthase Kinase-3 Beta Inactivation In Prostate Cancer Cells, Sual J. Lopez, Moira Sauane

Theses and Dissertations

Interleukin 24 (IL-24) is a tumor-suppressing protein currently in clinical trials. IL-24 induces cancer-specific apoptosis by activating endoplasmic reticulum (ER) stress and mitochondria dysfunction. We have previously demonstrated that IL-24 leads to apoptosis in cancer cells by protein kinase A (PKA) activation in human breast cancer cells. To further understand the mechanism by which IL-24 induces apoptosis, I analyzed the role of glycogen synthase kinase-3 (GSK3), a highly conserved and normally active serine/threonine kinase in cancer cells and downstream target of PKA. The work reported here provides direct evidence that GSK3 was inhibited following IL-24 treatment in human prostate cancer …

Patient-Specific Hemodynamic Modeling For Optimizing Left Ventricular Assist Device And Right Heart Health, Holly Felice Grant

Theses and Dissertations

LVAD speed optimization is essential for efficient LVAD therapy and to minimize complications. However, the ideal LVAD speed is unknown and must be tailored for each patient. The interplay between the LVAD, systemic, and pulmonary circulations is critical and should be considered during optimization. A computational hemodynamic model that can be tailored for each patient may provide clinicians with useful guidance and reduce the need for repeated invasive studies. This study sought to customize and evaluate a patient-specific LVAD hemodynamic optimization model.

We conducted a retrospective analysis on 25 patients implanted with HM3 and who underwent right heart catheterization (RHC) …

Reality In Motion: An Audio Documentary Exploring The Fluid Essence Of Life, Alessandro Bonaiuto

Theses and Dissertations

Reality in Motion is a science communication project that aims to create an audio documentary based around the theme of movement in various aspects of life, both human and non. The project is a 30-minute podcast that explores the topic of life and movement through the lens of smaller stories. Guided by a main narrator, with the intervention of experts, Reality in Motion seeks to provoke thought and inspire curiosity about the intricate dynamics that shape our world.

Engine Performance Of An Electric Airplane With Partial Battery Capability, Hannah Yasmine Scrivens

Theses and Dissertations

As electric aircraft are developed and certified, knowledge of electric aircraft performance during complete or partial battery failures can be useful to determine an aircraft’s limitations and capabilities of completing an emergency landing, especially during takeoff and low-altitude climbs, as well as fully characterizing the potential aircraft performance. The results of this research will be useful in developing regulations and procedures pertaining to energy reserves and emergencies. This paper presents the results of a Pipistrel electric airplane climb power ground test that was conducted by the author and Florida Tech faculty. In the test, one of the airplane’s batteries was …

Beta Lactams Anticancer Effect On Human Breast Cancer, Mcf-7 Cell Line, Ailis A. Abalos

Theses and Dissertations

Cancer is a disease where abnormal cells replicate uncontrollably in that same region and/or other parts of the body. One in eight women are diagnosed with breast cancer, thus making it the second leading cause of cancer-related deaths in the U.S. Chemotherapy, is the utilization of medicinal compounds (drugs) to treat cancer. While most are nonspecific and target both cancer and healthy cells, more emphasis is on developing drugs with specificity (only target tumor cells) and low toxicity. Interestingly, Beta Lactams (β-lactams) have emerged as a class of compounds that are effective in the treatment of various cancers. The benefits …

Unquiet Quitting: The Lived Experiences Of Latinx Teacher Attrition In The Lower Rio Grande Valley, Dolores Araujo Jr.

Theses and Dissertations

Teacher attrition, a critical issue in education, has significant implications for the quality of instruction and student success. The Lower Rio Grande Valley in Texas, known for its substantial Latinx population, faces a concerning trend of high teacher turnover particularly among Latinx educators who leave teaching within their novice years. This inquiry provides a comprehensive examination of the factors contributing to teacher attrition in the region, with a specific focus on the experiences of Latinx teachers. Findings are organized into four thematic categories: "Traversing Organizational Terrain," elucidating the institutional dynamics shaping teachers' experiences; "Interweaving Bonds," highlighting the relational aspects within …

Fight, Eduardo Daniel Guerra

Theses and Dissertations

FIGHT, is a story of a boxers mental health and his struggles before and after every fight. The protagonist, Eddy, is an anxious fighter who experiences a panic attack before his fight and in his panicked state, his mind runs wild as he imagines every possible scenario that can happen. Thus, when the scenarios come true, Eddy, becomes unsure of what is and isn’t true. Which begs the question, is Eddy brain damaged from the fight and stuck living in the traumatic memory that is replaying in his head or is he still in the restroom before the fight, paralyzed …

They See Themselves In The Lesson: Leveraging Students’ Scientific And Cultural Insights Through The Cultural Biohealth Synergy Science Curriculum [Se Ven A Sí Mismos En La Lección: Aprovechando Los Conocimientos Científicos Y Culturales De Los Estudiantes A Través Del Currículo De Ciencias De Sinergia De Bio Salud Cultural], Miriam M. Ortiz

Theses and Dissertations

In response to the global crisis of type 2 diabetes prevalence, this dissertation investigated the impact of a culturally sustaining, health-centric science curriculum contextualized in type 2 diabetes. Using a case study methodology, it explored how the curriculum shaped math and science preservice teachers’ (PSTs) perceptions of science and how it can be taught and how prepared they felt to design and implement culturally sustaining, health-centric lessons. Four themes that emerged across both cases included: 1) connecting health, nutrition, everyday science, and culturally sustaining pedagogy through the CBSS curriculum, 2) connecting science to health and wellness concepts through the CBSS …

Actions Taken At Firm-Level To Mitigate The Adverse Impacts Of Climate Risk, Deepak G. More

Theses and Dissertations

This dissertation comprises of two essays on actions taken at firm-level to mitigate the adverse impacts of climate risk. Our first essay documents a positive relation between firm-level climate change exposure (CCE) and long-term tax avoidance. Our results suggest that firms use tax avoidance to mitigate the adverse impacts of CCE. The positive effect of CCE on tax avoidance is stronger post the release of Stern Review and weaker after the enactment of the Tax Cuts and Jobs Act, 2017. Our study is the first to show that firms with high CCE use tax avoidance to increase cash holdings as …

The Effect Of Advertising On Consumer Self-Improvement Motivation: When And How Advertising Motivates Consumers, Suwakitti Amornpan

Theses and Dissertations

In today's modern world, advertising permeates nearly every facet of consumers’ daily lives, from billboards over city streets to posts seamlessly integrated into social media feeds. The current research identifies a positive unintended consequence of advertising on consumer behavior: increased consumer self-improvement motivation. Across four studies, I find that exposure to mass (vs. luxury) advertising increases consumer motivation to engage in self-improvement. Specifically, I argue that because advertisements for mass (vs. luxury) products prime attainable (vs. unattainable) consumption goals, they increase consumer confidence in their ability to achieve their consumption goals (i.e., they enhance self-efficacy perceptions). This, in turn, puts …

From Motivation To Hinderance: Unveiling Resigned Employees’ Entrepreneurial Intentions And Actions, Shuaijun Zhang

Theses and Dissertations

The phenomenon known as the 'Great Resignation' witnessed a record number of employee resignations since the onset of the COVID-19 pandemic. Reports indicate that approximately 32% of those who resigned during this period transitioned to entrepreneurship. This thesis explores the relationship between resignation and entrepreneurial actions through the lens of creativity. It expands the typology of resignation beyond a simple dichotomy of voluntary and involuntary into four categories: Genius group (voluntarily resigns with high creativity), Traditional group (voluntarily resigns with low creativity), Forced group (involuntarily resigns with high creativity), and Trapped group (involuntarily resigns with low creativity). Previous research suggests …

Application And Analysis Of Machine Learning And Deep Learning Algorithms In Detection Of Ddos Cyberattacks, Dipok Deb

Theses and Dissertations

A Distributed Denial-of-Service (DDoS) attack involves overwhelming a target system's data bandwidth or computational resources, often using multiple attack systems, aiming to slow down or disable the targeted system. Detecting and mitigating DDoS attacks effectively remains challenging due to their varying characteristics. One of the promising approaches involves developing an AI based Intrusion Detection System (IDS) against cyberattacks. In this study, we aim to develop an AI based Intrusion Detection System (IDS) for DDoS threat detection using Machine Learning, Deep Learning, or hybrid techniques. Different Machine Learning (ML) and Deep Learning (DL) algorithms like Random Forest (RF), Naïve Bayes (NB), …

Development Of A Mechanical Boot For Prevention Of Deep Vein Thrombosis In Outpatients, Julian David Trevino

Theses and Dissertations

This work presents the development of a mechanical boot designed to prevent Deep Vein Thrombosis (DVT) in high-risk individuals such as those who have just had major procedures. DVT is a serious condition characterized by the formation of blood clots in the deep veins, particularly of the lower limbs, which can lead to life-threatening complications if not adequately addressed. The mechanical boot utilizes the principle of Continuous Passive Motion (CPM) to facilitate blood flow in the lower extremities, thereby mitigating the risk of clot formation. Through a combination of mechanical engineering, biomedical research, and user centered design, the project outlines …

Psychosocial Impact Of Assistive Technology On Veterans With Disabilities In Higher Education, Maricela Rosales

Theses and Dissertations

The purpose of this dissertation study was to examine the psychosocial impact of assistive technology (AT) on veterans with disabilities in higher education. A current problem is that there is a research and knowledge gap in the AT needs of student veterans with disabilities living in South Texas, as well as in the psychosocial impact that AT for everyday life activities has on the quality of life of student veterans with disabilities who live with functional limitations. Descriptive and inferential statistics were used to examine the psychosocial impact variables with participants from higher education institutions via online and in-person surveys. …

Licensed Professional Counselors In Texas: The Role Of Stigma In Seeking Counseling Services, Raquel C. Vasquez

Theses and Dissertations

The literature on stigma has revealed this attribute as a deterrent to seeking mental health services. This study encompassed an investigation of the impact of self-stigma and public stigma on the intentions to seek mental health services of Texas Licensed Professional Counselors. A survey was sent via email, social media platforms associated with Licensed Professional Counselors, and snowball sampling to recruit participants. The participants (N = 99) completed self-report measures about self-stigma, public stigma, social desirability characteristics, and attitudes towards seeking mental health help. The results indicated that neither self-stigma nor public stigma was a deterrent to seeking mental health …

An Examination Of Self-Identity In Relation To Smoking And Vaping In South Carolina, Jaron Hoani King

Theses and Dissertations

BACKGROUND

This dissertation examines self-identity in the context of smoking and vaping among adults in South Carolina (SC) using data from the 2023 SC Adult Tobacco Survey (n=1370). The conceptual model created to guide this dissertation is called the “Smoker and Vaper Behavior-Identity Model” and draws constructs from theoretical frameworks in health behavior and social identity theories. Behavior was defined as lifetime and past 30 day cigarette or e-cigarette use. Self-identity was defined by asking respondents with a history of cigarette or e-cigarette use “Do you consider yourself a smoker/vaper”, respectively.

METHODS

First, this study assesses the prevalence of mismatching …

Examining Risk Factors For Early-Onset Breast Cancer, Jennifer Grace Taylor

Theses and Dissertations

Introduction: There have been great advancements in screening and in the identifying of risk factors associated with breast cancer, however, there is a lack of information of these factors in women with breast cancer occurring under the age of 45, known as early-onset breast cancer (EOBC). EOBC is often found at later stages, negatively impacting young women’s careers, family planning, and mental health. Additionally, because of the health disparities that exist within the U.S. health care system, women belonging to racial and ethnic groups, specifically young Black women, tend to have poorer outcomes and higher mortality rates of EOBC …

Faith, Trust, And Pixie Dust: Understanding The Visions And Responsibilities Of The Varsity Esports Program Director, William Alan Fisackerly

Theses and Dissertations

The budding esports scene has drawn attention from higher education institutions in North America, who are growing community, competitive, and pedagogical esports initiatives. Varsity Esports Programs (VEPs) have proliferated since Robert Morris launched the first varsity program in 2014, with over 12,800 players from 650 institutions competing in the Spring 2023 National Association of Collegiate Esports (NACE) Starleague season alone (Butler University Set To Host NACE Starleague’s Spring 2023 Grand Finals, 2023). Despite this growth, little is known about the Varsity Esports Program (VEP), specifically from the perspective of the directors that oversee their operations. Previous work exploring the creation …

Collegiate Student-Athlete Responses To The Covid-19 Pandemic, Alexa Jenny Chandler

Theses and Dissertations

Introduction: Exercise imposes a physiological stressor on the body which is amplified as training intensifies. Collegiate fall-sport student-athletes return after summer break (off-season) and have approximately two weeks of training (preseason) with coaching staff before competition begins. The 2020 fall season was preceded by a five-month period away from campus due to the timing of the coronavirus 2019 (COVID-19) pandemic. This also meant all commercial gyms and training facilities were closed, and student-athletes were forced to train with the resources they had at home. Upon return to campus, significant changes were made to practice and competition structures in attempt to …

Lexical Access In Women With The Fmr1 Premutation, Nadia Sabeh Ayon

Theses and Dissertations

Background: Emergent research indicates that women carrying the FMR1 premutation (FXpm) may encounter difficulties in language skills, including increased dysfluencies, a reduction in the quantity and diversity of words produced, and increased word retrieval errors with age (Sterling et al., 2013; Bredin-Oja et al., 2021). Objectives: The present study aims to assess semantic and phonological lexical access skills in FXpm women as well as to examine the impact of cognitive load (time pressure) on lexical access.

Methods: Forty-two FXpm women and 25 control women, aged 26-65 years (M=46.22, age-matched: p=.115), participated. The Network Production Task (Oomen & Postma, 2001), featuring …

Validating An Automated Rodent Ultrasonic Vocalization Data Collator, Devin Mark Kellis

Theses and Dissertations

Rodent ultrasonic vocalizations (USVs) are a key dependent measure within behavioral science that have translational relevance with respect to medical, especially neuropsychiatric, illnesses. In recent years, several programs have been developed to enable the recording, labeling, and parameterization of rodent USVs via conventional, machine learning, or deep learning approaches. However, there remains a need to further automate the downstream process of data collation so that labeled and classified USV parameters can be rapidly formatted and analyzed via statistical approaches based on experimenter preferences. The aim of this thesis was therefore to validate an automated vocalization data collator (AVDC) to expedite …

Experiences Of Ambivalent Sexism And Applicant Behaviors: The Interplay Of Affective Reactions, Lauren Marie Soda

Theses and Dissertations

This study focused on ambivalent sexism, which can have detrimental effects for organizations, consisting of two factors: benevolent and hostile sexism. Benevolent sexism is the subtler of the two, oftentimes creating a sense of inferiority and increased anxiety for those experiencing it. Hostile sexism, on the other hand, is often more overt and instills a sense of anger from the target. There appears to be little research looking at experiences of ambivalent sexism in work settings and the affective reactions to those events (i.e., anger and anxiety). I believed that when people experience hostile sexism will feel angry and associate …