Digital Commons Network^™

The Association Between Testicular Cancer And Female Reproductive Cancers: A Systematic Review, Alyssa Church

Honors Undergraduate Theses

The most common neoplasm found in young to middle-aged men is testicular cancer (TCa). This disease not only poses a risk of early death, but can also affect a male's fertility and testosterone levels and can diminish one's mental health and/or quality of life. One particular line of research that is emerging in the field is a possible genetic association of TCa with female reproductive cancers. We employed a systematic review to assess the methodological quality of articles that met the inclusionary criteria. To be selected for this review, articles had to go through a primary, secondary, and tertiary screening …

An Investigation Into Provider Communication At Ucf And The Impact Of Health Literacy On Teach Back Outcomes, Shreya L. Atmakuri

Honors Undergraduate Theses

The most important aspect of an encounter between a patient and his or her provider is the patient's ability to understand and implement the treatment plan and self-care instructions conferred by the provider. However, the literature in the field of patient-provider communication reveals that there is a noticeable gap in health literacy in certain patient populations that impairs their ability to understand pre-, during, and post-encounter paperwork, terminology, treatment plan, and critical self-care instructions. This has been shown to have detrimental consequences on patient health outcomes. The teach-back method, in which providers request patients to repeat key information discussed during …

Promotion Of Neuronal Regeneration: Upregulation Of Intrinsic Neuronal Growth Capacity Versus Microtubule Stabilization, Cathy Le

Honors Undergraduate Theses

Central Nervous System (CNS) injury may lead to irreversible damage to cognitive and motor abilities when injured. This is due to the inability of axons to regenerate. This thesis focuses on two methods of promoting axonal regeneration: microtubule stabilization and upregulation of the intrinsic growth capacity of the neuron via the mechanistic target of rapamycin (mTOR) pathway. Both have shown promising results in potentially being a therapeutic treatment for CNS trauma. This research seeks to (1) test a combinatorial method of axonal regeneration utilizing both methods simultaneously and (2) compare microtubule stabilization and upregulation of the mTOR pathway as neuronal …

Understanding Aggressive Driving Behavior: The Role Of Personality And Individual Differences, Enilda M. Velazquez

Honors Undergraduate Theses

According to recent reports, 56 percent of total vehicular accident deaths were related to aggressive driving. Previous research on aggressive driving was related to cognitive failures, sex differences, individual driving habits, and to a lesser extent, personality. Personality focused aggressive driving research has not produced a consensus on the predictive nature of personality traits on the propensity to engage in aggressive driving. However, a lack of consensus on personality's role in aggressive driving warrants further empirical examination into the relationship between personality and aggressive driving. Similarly, the impact of individual differences on aggressive driving behavior cannot be ignored; the role …

Effects Of Death Anxiety On Learning Performance, Umaima Haseeb

Honors Undergraduate Theses

The present study examines whether or not a person's anxiety level might be linked to their learning performance. Many studies in the past have examined math and test anxiety, but the present study will examine the effects of death anxiety on learning performance. Individual's anxiety will attempt to be induced through fear of death. Participants were presented a set of four symptoms, similar to Gluck and Bower's 1988 category learning study. The participants were asked whether or not they think the symptoms of the patient are positive for COVID-19 or positive for the flu. The hypothesis was that there would …

Detection Of Point Mutations Conferring Gentamicin Resistance In Escherichia Coli Using A Split-G4 Probe, Michael J. Greenberg

Honors Undergraduate Theses

The objective of this project was to develop a DNA hybridization sensor that can detect the presence of E. coli and reveal its resistance to the drug gentamicin. This probe will enable rapid and user-friendly diagnostics of E. coli infections and analysis of bacterial gentamicin-susceptibility profile by interrogation of a fragment of E. coli 16S rRNA bearing a substitution in the gentamicin-resistant cells. The sensor is promising for the point-of-care use to provide a timely UTI diagnostic solution. A quick diagnosis of E. coli infection and antibiotic resistance is crucial for treatment. To design a hybridization probe, we proposed a …

The Relationship Between Parent And Child Health Behaviors In Youth With Autism Spectrum Disorder, Elise M. Arnold

Honors Undergraduate Theses

Previous studies found that children with ASD tend to participate in lower amounts of physical activity (PA), accumulate greater hours of screen time (ST), and have poorer sleep quality (SQ), compared to typically developing (TD) youth. Unfortunately, these poor health behaviors put youth with ASD at a high risk for developing obesity, as well as other obesity-related conditions (e.g. Type 2 diabetes). In order to reduce this risk, it is critical to understand the factors that affect activity levels and sleep in youth with ASD. Several studies have demonstrated that parents may have a large influence on social behaviors in …

Perceptions Of Oral Health Access Among Foreign-Born College Students, Rahema Khan

Honors Undergraduate Theses

Oral health plays an integral role in our general health, wellbeing, and quality of life. Practicing evidence-based oral hygiene behaviors prevent oral diseases and improve systemic health. The burden of preventable oral diseases persists worldwide and weighs particularly heavy on specific population groups. While many studies have explored oral health among those of advanced age, children, and minority groups, there are a very few exploring the oral health care needs of postsecondary students, specifically those born outside of the United States (U.S.). Recognizing this gap in the literature, this study sought to gain a better understanding of oral health access …

Nanopore-Based Metagenomic Comparison Of Airway Colonizers Between Cystic Fibrosis Patients And Healthy Individuals, Anita Samadabadi

Honors Undergraduate Theses

Cystic fibrosis (CF) is an autosomal recessive genetic disorder involving a mutation in the CF transmembrane conductance regulator protein (CFTR), which causes dysfunctional transport of chloride ions across cell membranes. CF affects multiple body systems and a few of its symptoms include chronic cough, difficulty breathing, obstructive airway disease, bacterial pulmonary infections, maldigestion, malabsorption, pancreatitis, and male infertility. Until recently, treatment options have been limited to alleviating symptoms, but a new classification of drugs, CFTR modulators, provide an opportunity to slow the progression of the disease and improve clinical outcomes. The effect of CFTR modulators may be attributed to the …

Left Ventricular Strains During Late Filling In A Preclinical Model, Saar Peles

Honors Undergraduate Theses

Understanding the mechanisms governing left ventricular function and dysfunction is critical to analyze cardiovascular disorders and gaining insights into possible therapies. Left ventricular function can be evaluated using Magnetic Resonance Imaging (MRI). Cardiac displacements and corresponding strains are then computed from the imaging data. In measuring and assessing the left ventricle’s motion, images are taken either in the short axis (top-down) or long axis (side) views. In this project, we will use DENSE MRI data, which measures the displacements of individual tissue voxels during the cardiac cycle.

After extracting the myocardial tissue by segmenting the MR images, strains are computed …

Systematic Literature Review Of Cognitive Behavioral Treatments For Patients With Classical, Secondary, And Idiopathic Trigeminal Neuralgia, Linnea B. Herzog

Honors Undergraduate Theses

Trigeminal neuralgia is a painful neuralgia with a complicated pathology that is not clearly understood. Due to the ambiguity of the condition, patients often have to search for medical providers that specialize in trigeminal neuralgia, and even with the guidance of a specialist, some patients do not respond well to treatment.¹ Despite the uncertainty surrounding the specifics of the disease, there are treatments available that can provide some level of pain relief for patients suffering from this disorder. When a patient does not respond well to medical therapy, surgery can be the next appropriate step in patient care management. …

Reviewing Constitutionality Of Time Spent On Death Row Under Eighth Amendment Jurisprudence, Angie Richardson

Honors Undergraduate Theses

Under the Eighth Amendment, the death penalty is in and of itself not considered cruel and unusual punishment. Although the death penalty is frequently attacked for the numerous death row exonerations (more than 150 in the United States alone), lack of evidence supporting the idea that the death penalty deters crime, and marginalized groups being more likely to receive this sentencing, the death penalty still remains on solid constitutional ground. In fact, the arguments that pose the biggest threat to the constitutionality of the death penalty tend to revolve around the potential risk of substantial pain while executing an offender, …

Ultra-Low Power Circuits And Architectures For Neuromorphic Computing Accelerators With Emerging Tfets And Rerams, Jie Lin

Electronic Theses and Dissertations, 2020-2023

Neuromorphic computing using post-CMOS technologies is gaining increasing popularity due to its promising potential to resolve the power constraints in Von-Neumann machine and its similarity to the operation of the real human brain. To design the ultra-low voltage and ultra-low power analog-to-digital converters (ADCs) for the neuromorphic computing systems, we explore advantages of tunnel field effect transistor (TFET) analog-to-digital converters (ADCs) on energy efficiency and temperature stability. A fully-differential SAR ADC is designed using 20 nm TFET technology with doubled input swing and controlled comparator input common-mode voltage. To further increase the resolution of the ADC, we design an energy …

Experimental And Computational Investigation Of Plume Surface Interactions In Vacuum Microgravity, Wesley Chambers

Electronic Theses and Dissertations, 2020-2023

Plume surface interactions (PSI) are caused by rocket exhaust impinging on planetary surfaces. PSI-induced environmental changes pose hazards to spacecraft and astronauts; thus, it is crucial to understand the gas-particle dynamics of these systems. We have conducted novel experimental and computational work to study PSI effects in relevant vacuum microgravity environments. To study flow effects and regolith instability we developed a computational model that describes the gas flow through a porous medium based on Darcy's Law. This flow depends on regolith properties, and the resulting subsurface pressure distribution is used to estimate ejecta mass. We find flow behaviors and the …

Educators' Storybook Reading Practices, Attitudes Toward Adopting Dialogic Reading, And Child Language Status In An Inclusive Early Learning Environment, Ruth Gorlin

Electronic Theses and Dissertations, 2020-2023

The purpose of this descriptive study is to characterize the natural context of routine storybook reading in an inclusive early learning environment by looking at educator variables and child language status. Early childhood researchers and scholars have well documented the importance of oral language development in young children for future reading and academic success. Evidence-based research literature advocates engaging young children in high quality interactive reading experiences, such as Dialogic Reading (Whitehurst, 2005), as effective means to facilitate young children's oral language development and emergent literacy acquisition. By understanding the features of natural story-time routines, researchers, speech-language pathologists, and early …

A Longitudinal Examination Of Risk Factors, Antisocial Outcomes, And Transition Patterns Across Bully Profiles, Sara Bryson

Electronic Theses and Dissertations, 2020-2023

The current research focuses on the risk factors for bully profiles, antisocial behavior across profiles, and patterns of bullying behavior over the span of four school years. The sample was comprised of 1,817 middle school students from seven school districts. Latent profile analysis, multivariate regression techniques, and latent transition analysis were used to meet the five objectives of this study: 1) identify unique subgroups of youth based on responses to different bully experiences, 2) determine similarities and differences in risk factors that are associated with bully experiences, 3) examine antisocial behavior across identified bully profiles, 4) determine if membership in …

Chemometric Analysis Of Multidimensional Fluorescence Data Recorded From Benzo[A]Pyrene Metabolites In Shpol'skii Like Matrixes, Mohammadreza Chehelamirani

Electronic Theses and Dissertations, 2020-2023

This dissertation extends the application of Shpol'skii spectroscopy to polar metabolites in polar organic solvents. For the first-time, we reported experimental evidence on the line-narrowing effect caused by primary alcohols on the spectral features of PAH metabolites at 77 K and 4.2 K. The effect of primary alcohols (RCH2OH) on the 77 K and 4.2 K fluorescence characteristics of PAH metabolites showed the best spectral narrowing when matching the length of the alkyl group (R) of the primary alcohol to the length of the n-alkane that best fitted the dimensions of the parent PAH. The spectral narrowing and the fluorescence …

Classical Engineering Systems Provide Behavioral Analog For Ephemeral Insect And Plant Biomechanics, Nicholas Smith

Electronic Theses and Dissertations, 2020-2023

In this dissertation we consider ephemeral behaviors of two small-scale living systems, mosquitoes and citrus fruit reservoirs. While these two systems share few obvious commonalities, they both express life events that are complex and conclude within approximately 50 milliseconds. We utilize high-speed videography, between 1,000-16,000 fps, to detail how complex behavior can be modeled as classical engineering systems. Beginning with the larger organism we assessed the landing and takeoff behavior of Aedes aegypti mosquitoes to ascertain the secrets of their covert interaction with humans. At takeoff, mosquitoes decrease pushing contact time with substrates of low friction through a modified takeoff …

Inertial Orbit Estimation Using Multiple Space Based Observers: A New Measurement Model, James Hippelheuser

Electronic Theses and Dissertations, 2020-2023

Presented within this work is a new method for inertial orbit estimation of an object, either known or unknown, adaptable to a network of low-cost observation satellites. The observation satellites would only require a monocular camera for line of sight measurements. Using the line of sight measurements of each observer, a pair of orthogonal geometric planes that intersect both the observation satellite and the target are created. The intersection of the two planes in the inertial frame defines the new measurement model that is implemented with multiple observation nodes. Total system observability is analyzed and the instantaneous (per node) observability …

Examining The Design And Usability Of Telemedicine Communications: A Mixed-Methods Study, Jessica Campbell

Electronic Theses and Dissertations, 2020-2023

This dissertation describes a mixed-methods study that examines the usability of telemedicine provider interfaces. This study consisted of content analysis, survey, and think aloud methodologies, which afford a multifaceted corpus of data for which to draw inferences and identify design features and functions that negatively impact usability. Usability is a critical component of the user experience with a telemedicine provider interface and can suede or impede the acceptance and adoption of telemedicine. Telemedicine has the potential to increase quality healthcare access and positive health outcomes for individuals who use it, and usability is a key component of technology acceptance and …

A Critical Microethnographic Examination Of Power Exchange, Role Identity And Agency With Black Bdsm Practitioners, Amber Norman

Electronic Theses and Dissertations, 2020-2023

The practice of BDSM (Bondage/Discipline, Dominance/Submission, and Sadomasochism) is a roleplay activity that facilitates the examination of power dynamics through erotic play. Historically, the mental health community relegated BDSM as a deviant sexual practice. Modern therapeutic perspectives, however, affirm the normality of practitioners and report psychological benefits of BDSM. Nevertheless, the practice remains stigmatized and misunderstood. The goal of this research was to examine how BDSM works, and how power is exchanged within relationships. More specifically, the experiences of Black BDSM practitioners were investigated to add nuance to how racial dynamics further impact power relationships. Ethnographic procedures were applied to …

Puerto Rico After Hurricane Maria: Responses To Trauma And Constructing A New Life In Central Florida, Angela Vergara

Electronic Theses and Dissertations, 2020-2023

On September 20th, 2017, Hurricane Maria made landfall on the island of Puerto Rico causing devastating results. An Island with a history of decades of economic recession, inadequate infrastructure, and a negative effect of a century of colonial rule by the United States, Hurricane Maria unquestionably intensified the catastrophic circumstances in Puerto Rico. (Cons 2017; Torres 2018; Gay et al 2019). The aftermath of Hurricane Maria left thousands homeless and without basic resources in the Island. The study examines the effects of disparate social factors on individual responses to trauma before, during, and after the disaster and illuminates the circumstances …

Evaluating The Performance And Impacts Of Seawater Regeneration In An Anion Exchange Process, Daniel Whalen

Electronic Theses and Dissertations, 2020-2023

This research investigated the use of seawater regeneration for anion exchange (AIX) processes. Seawater and salt-supplemented seawater regeneration of chloride-form anion resin were evaluated in regard to (1) operational performance efficiency of sulfate and natural organic matter removal, (2) competing exchange of bromide during regeneration, and (3) brominated disinfection by-product (DBP) formation due to bromide leakage. The first component involved bench-scale research that revealed that seawater-based regeneration led to bromide leakage that could be mitigated to an average of 1.82 mg/L using 1% salt-supplemented seawater, and 1.25 mg/L using 3% salt-supplemented seawater. Conceptual cost comparisons revealed that the use of …

Atomic Scale Processes And Electronic Band Structure Engineering In Thin Layered Materials, Brandon Blue

Electronic Theses and Dissertations, 2020-2023

In this work, a variety of layered materials are considered for their potential technologic applications and the role of structure on the physical properties of the material system as a whole. Transition metal dichalcogenides form the core of the work discussed here, with additional results from an iron pnictide-based superconductor and for a biologically-sourced proton conductor. Here, a commercial scanning tunneling microscope (STM) with liquid cryogenic cooling provides information about both the atomic-scale structure of the surface and the local electronic density of states (LDOS) as a function of position. The interplay of superconducting and charge-density wave states is discussed …

Seeds Of Doubt, Amber Hilson

Electronic Theses and Dissertations, 2020-2023

Seeds of Doubt is a two-dimensional (2D) animated film that explores how anxiety can stifle personal growth. The film demonstrates how accepting and coping with this anxiety can help you return to a place of calm and allow you to blossom. Roma, a young witch, struggles to use her magic to successfully make her crops grow. Her lack of confidence leaves her stuck inside the greenhouse until she is ready to move on to the tomato fields outside. She must first re-center herself and overcome her self-doubt before it consumes her completely. This idea is sourced largely from my own …

Piezospectroscopic Sensing Systems - Multi-Scale And In-Situ Sensing Technology For Structural Integrity, Remelisa Esteves

Electronic Theses and Dissertations, 2020-2023

The aerospace industry relies on nondestructive evaluation (NDE) to ensure aircraft safety and will benefit from methods that allow for early damage detection. Photoluminescence piezospectroscopy (PS) has demonstrated stress and damage sensing of substrates when coupled with alpha-alumina nanoparticles in a polymer matrix applied as a sensor coating. Alpha phase alumina exhibits photoluminescent spectral emission lines (R-lines) that shift due to changes in the stress state of the alumina. The coatings' capability for sensing early subsurface damage suggests the potential for implementing stress sensing paint for integrity monitoring of aircraft structures. To achieve a viable stress sensing coating that can …

Exploring Academic Stressors Related To Second Language Acquisition And Barriers Of Turkish-International Graduate Students Studying Education In The Southeast United States, Nermin Ciloglu Cakmakci

Electronic Theses and Dissertations, 2020-2023

Many students around the world have a strong desire to study in the United States, and in recent years international students in the United States have enrolled at an all-time high. There is a significant need to learn more about these students' needs and strategies to identify the most effective practices to improve their academic life and life quality. The demand for overcoming life challenges in a new country and achieve high academic performance with their second language creates high stress for these international students. One of the groups among these international students that has been understudied is the Turkish …

In Sickness Or In Health: The Impact Of Disease Burdens On The Likelihood Of Violent Conflict, Devyn Escalanti

Electronic Theses and Dissertations, 2020-2023

This paper expands on the relationship between disease burdens and the onset of violent conflict in Sub-Saharan Africa from 1990-2012. Most studies have focused on conflict as a cause of HIV transmission, while some suggest that HIV infection rates, by substantially reducing life-expectancy, increase the onset of violence by lowering the opportunity cost of rebelling for HIV-positive individuals. This paper argues that to the degree that life expectancy is important to opportunity costs, it is more likely driven by other factors. First, I argue preventable diseases that are less connected to individual decision-making, and the presence of poor health infrastructure …

Application Of Reliability Centered Maintenance In Railway Tracks, Sarita Rattanakunuprakarn

Electronic Theses and Dissertations, 2020-2023

Rail transport has played a significant role for a long time in the U.S. history. As other alternative transport modes have been developed, rail transport has increasingly faced more challenges to stay competitive. While heavy use of the rail, shortened service life and the need to meet consumer expectations have placed challenges, maintenance has become an integral part of the railway industry to assure efficacy and reliability of rail transportation. For this reason, there is a constant need to improve maintenance for a number of purposes, such as safety, quality, capacity, reliability, availability, punctuality, etc. In addition, optimizing maintenance strategy …

Chemically Stabilized Oil-In-Water Emulsion Separation Using A Custom Aquaporin-Based Polyethersulfone (Pes) Forward Osmosis Membrane System, Annmarie Ricchino

Electronic Theses and Dissertations, 2020-2023

The stability of oil-in-water emulsions is enhanced by the presence of surfactants in the water, thereby increasing difficulty of remediation. In this study, mineral oil and a standard bilge mix (SBM) were used as model oils for forward osmosis (FO) performance evaluation and two different high-concentration feed solutions (FS) were tested: 10,000 and 100,000 ppm oil/surfactant (9:1 Oil/Surfactant, wt %). It was hypothesized that the charge-charge interactions between the surfactant portion of the micelles and the membrane would play an important role in membrane fouling. Therefore, the effects of both an anionic surfactant (sodium dodecyl sulfate [SDS]) and a nonionic …