Digital Commons Network^™

Flashbulb Memories Among College Students During Covid-19, Sabah Qureshi

Honors Undergraduate Theses

Flashbulb memories are formed through widely shared events that have affected the culture and community. The “flash” in flashbulb memories refers to the specific details that individuals have developed in their memories. The presented research focuses on the specific event of college students at the University of Central Florida (UCF) hearing about university closure due to the COVID-19 pandemic. This research study sought to identify the variables that have affected the accuracy of flashbulb memories formation regarding the event of college students hearing about university closure because of the pandemic. The variables of the students’ relevance to the university, location, …

A Reflection On Modern Western Adolescent Transitional Care Of Patients With Chronic Conditions, Samuel Schepps

Honors Undergraduate Theses

Transitional care represents a critical juncture in the continuing care of patients with chronic conditions, particularly for adolescent patients. It also represents a significant point of failure in that process for adolescents, with many patients experiencing difficulties during the transition between adolescent and adult medicine that lead to negative long-term impact on health and wellbeing. This thesis aims at addressing adolescent transitional care processes and its obstacles through a broad medical humanities inquiry in a multidisciplinary dialogue between philosophy, social sciences, and medicine. The social, anthropological, and medical concepts of adolescence and autonomy were derived from a literature review and …

The Deaf Community And Their Preferences In A Clinical Psychological Setting, Alexandra Alonso

Honors Undergraduate Theses

The focus of this study was to examine the Deaf community and their preferences for both a psychologist and the language utilized in a clinical psychological setting. The study gave each participant a mock profile for a psychologist and then asked participants to answer questions on their perceptions of the psychologist provided. A total of 22 participants who identified as Deaf, deaf, hard-of-hearing, or as an individual with hearing loss were surveyed. Results indicated that participants randomly assigned to the Deaf psychologist had higher rates of satisfaction and trust over participants who were assigned to other psychologists. The study also …

Unmoored: Exploring Identity And Change, Michelle Bondzie

Honors Undergraduate Theses

Many of the shifts in our identity are as surprising as they are inevitable. As with our bodies and our minds, it’s easy to forget that our identities are in a constant state of change — that is, until a situation forces us to face ourselves and examine who we’ve become. For adolescents, college students included, reckonings with their sense of self come frequently; they feel seismic each time they occur.

My thesis will be a short screenplay in which the central character is recovering from severe executive dysfunction, the impairment of basic skills that include working memory, mental flexibility, …

Positive Psychology - A Cross-Cultural Comparison Of Correctional Systems, Denitsa Kaneva

Honors Undergraduate Theses

This paper analyzes and compares the effectiveness of the correctional systems in the United States of America and Europe, with some emphasis on Scandinavia. To make the comparison, I looked at previous research on the correctional systems in the United States and Europe. I reviewed articles from PsycInfo EBSCO Host and Google Scholar. The main points of comparison used are recidivism rates and rehabilitation services offered by the prisons in different countries. The results of this comparison show that countries that offer better rehabilitation services in the prison system, like Scandinavian countries, have lower recidivism rates than the United States, …

Emotional Neglect In Childhood And Attachment Anxiety In Adult Relationships As Predictors Of Social Networking Addiction, Latasha N. Mcdowell

Honors Undergraduate Theses

This study investigated the relationship between childhood maltreatment and social networking addiction to determine if it was mediated by anxious-avoidant attachment. It was hypothesized that the presence of an anxious-avoidant attachment pattern developed as a result of childhood maltreatment would mediate the correlation between anxious-avoidant attachment and social networking addiction. This would mean that participants who developed an anxious-avoidant attachment style due to childhood maltreatment would use social media in unhealthy ways. To measure childhood maltreatment, the Adverse Childhood Experiences scale (ACE) was used. The Experiences in Close Relationships-Revised scale (ECR-R) was used to measure anxious-avoidant attachment. Finally, social networking …

Evaluating Morphometric Analysis Of The Talus For Biological Sex Assessment In Ancient Maya And Egyptian Archaeological Populations, Melissa N. Marks

Honors Undergraduate Theses

When analyzing skeletal remains in bioarchaeology, the pelvis and skull provide the most accurate results for sex estimation; however, these are not always present or sufficiently preserved to provide quality data for this purpose. In addition, the amount of time spent analyzing human remains in field or museum collection contexts may be constrained. Therefore, alternate methods of sex estimation that also increase efficiency should be explored. This study aims to establish the minimum number of key measurements of the talus necessary to estimate biological sex with a level of accuracy comparable to published studies that are more time intensive in …

Comparative Studies Of Gender-Based Violence In Mexico And Central America, Daniela M. Buduen

Honors Undergraduate Theses

This thesis intends to explore the conditions of gender-based violence in Latin America and how it interacts with government type, crime rates, and religion. Currently, feminicide is perceived at higher rates in countries such as Mexico and Guatemala. A significantly higher indigenous community, Catholicism, and increased crime organizations are also present in these countries. Therefore, to uphold fundamental human rights, there needs to be a change in how gender-based violence, especially feminicide, is reported. The discussion will include a connection between the variables listed.

The Impact Of Head And Neck Surgical Scars On Appearance And Acceptance Of Dermatography As A Cosmetic Intervention, Simcha Chaitoff

Honors Undergraduate Theses

Many surgical procedures in the head and neck regions produce visible scarring. The most common of these surgeries are tracheotomies and thyroidectomies. The recent COVID-19 pandemic has caused an increase in tracheotomy scars, particularly in those who survived severe infection with the disease and required long-term ventilation. Individuals with neck scars are at an increased risk of health consequences such as reduced quality of life, depression, and negative body image. Research on attitudes toward and reactions to individuals with such scarring is limited. The purpose of this study is to examine how people rate images of scarred individuals on personality …

Technology Screens And Effects On Attention: A Meta-Analysis, Carly A. Haxel

Honors Undergraduate Theses

This study looks at how technology screens have an effect on academic performance considering how technology is becoming relied upon more every day. A meta-analytic review that quantitively combines data was conducted to estimate effect sizes between technology screens and academic performance. The study held no restrictions on location or ethnicity. 12 studies were chosen, consisting of 31,844 total participants. Ethnicity, research design, and screen type were found to moderate the effect of screen time on academic performance. Theoretical implications and future research is also discussed in this study.

Social Media Usage For Social Comparison And Its Relationship To Identity Development, Lillie C. Del Real

Honors Undergraduate Theses

Yang and colleagues (2018) found that social media comparison was related to identity distress. The purpose of the current study was to expand on their design, by examining multiple comparison factors (i.e., Ability, Opinion, Popularity, Likeness, Physical Appearance, Academic Status/Achievements, Work Status/Achievements, Relationship Status, Family Status, and Socioeconomic Status) and multiple identity development factors (i.e., Ruminative Exploration, Exploration in Breadth, Exploration in Depth, Commitment Making, and Identification with Commitment) on their ability to predict Identity Distress. College students (N= 407) in psychology courses participated in an anonymous online survey for course credit. The results were consistent with the …

The Effects Of Anxiety On Vision Related Performance Among Collegiate Athletes, Aviana R. Fedele

Honors Undergraduate Theses

Anxiety is an intense feeling of worry or fear and can often be overwhelming, taking over someone’s everyday activities. Oftentimes, individuals who have feelings of anxiety or are in stressful situations that are anxiety inducing, they can get physical symptoms such as increased heart rate, sweating, fatigue and rapid breathing. Anxiety can also affect an individual’s quality of vision. In circumstances that are highly stressful, individual’s vision can start to diminish temporarily, affecting the peripheral vision as well as making central vision blurry. This study examines the effects of anxiety and vision quality on athletic performance among collegiate athletes. It …

Intractable Pediatric Epilepsy And Dietary Therapies: A Meta-Analysis Of Trials For Seizure Reduction, Victor Figueira M Dantas

Honors Undergraduate Theses

Objective: to compare dietary treatments and their effectiveness in reducing seizures through a systematic review and meta-analysis of clinical trials Methods: Using the PRISMA Method, the Primo database was searched to find peer-reviewed articles where researchers compared one treatment against another. The treatments of choice present in all studies are the Ketogenic Diet and the Modified Atkins Diet. Due to the nature of the experiments, the Ketogenic Diet was considered the control, as it was coined first. Results: Of the 450 articles identified, 378 met the primary peer review threshold and 190 were classified as Open Access. Eight met eligibility …

Mechanical Understanding And Optimization Of Template Guided Core Needle Biopsy, Isaac Girgis

Honors Undergraduate Theses

Prostate cancer is the second highest cause of cancer related deaths among men. According to the diagnostic pathway for prostate cancer, a prostate biopsy is performed if an individual showed signs of lesions through high prostate-specific antigen (PSA) concentration or suggestive digital rectal exam (DRE) results. The core biopsy mechanism involves inserting a beveled needle into the organ and removing a cylindrical fragment of tissue. Many factors affect the histological quality of the sample, including fragmentation, needle deflection, and needle insertion velocity. If a biopsy core is not clinically viable, an alternative core will need to be taken, resulting in …

Flame-Generated Turbulence For Flame Acceleration And Detonation Transition, Rachel Hytovick

Electronic Theses and Dissertations, 2020-2023

Detonations are a supersonic mode of combustion witnessed in a variety of applications, from next-generation propulsion devices to catastrophic explosions and the formation of supernovas. Detonations are typically initiated through the deflagration to detonation transition (DDT), a detailed process where a subsonic flame undergoes rapid acceleration increasing compressibility until a hotspot forms on the flame front inciting a detonation wave to form. Due to the complex nature of the phenomena, DDT is commonly investigated in three stages – (i) preconditioning, (ii) detonation onset, and (iii) wave propagation and stability. The research presented explores each of these stages individually, with a …

Design And Analysis Of A Foldable Propeller Blade, Annan Mashin

Electronic Theses and Dissertations, 2020-2023

Deployable structures have made an immense impact in the engineering world. The concept of the deployable structure has been able to reduce costs and sizing limits across a variety of use cases. However, sizing and cost reduction are not the only reasons that deployable structures are prominent. There are unique propeller blades that have entered into the world of deployable structures, where the ability to be stowed away and deployed to a much larger diameter can increase launch flexibility, and the engine efficiencies of aircraft. Although, most of the deployable propeller blades that have been designed in studies have the …

Experimental And Computational Heat Transfer Study Of Sco2 Single Jet Impingement, John Richardson

Electronic Theses and Dissertations, 2020-2023

The present study experimentally investigates the heat transfer capability of supercritical carbon dioxide (sCO2) single-jet impingement. The evaluated jet Reynolds number range is between 80,000 and 1,000,000, with a non-dimensional jet-to-target surface spacing of 2.8. CO2-impinging jet stagnation conditions were maintained at approximately 20 MPa and a temperature of 673 K for most experiments. The goal is to understand how changes in the aforementioned parameters influence heat transfer between the working fluid and the heated surface. Additionally, due to the elevated Reynolds numbers and difference in thermodynamic properties between air and CO2, air-derived impingement correlations may not be appropriate for …

Detecting And Tracking Vulnerable Road Users' Trajectories Using Different Types Of Sensors Fusion, Zhongchuan Wang

Electronic Theses and Dissertations, 2020-2023

Vulnerable road user (VRU) detection and tracking has been a key challenge in transportation research. Different types of sensors such as the camera, LiDAR, and inertial measurement units (IMUs) have been used for this purpose. For detection and tracking with the camera, it is necessary to perform calibration to obtain correct GPS trajectories. This method is often tedious and necessitates accurate ground truth data. Moreover, if the camera performs any pan-tilt-zoom function, it is usually necessary to recalibrate the camera. In this thesis, we propose camera calibration using an auxiliary sensor: ultra-wideband (UWB). USBs are capable of tracking a road …

Big Data Processing Attribute Based Access Control Security, Anne Tall

Electronic Theses and Dissertations, 2020-2023

The purpose of this research is to analyze the security of next-generation big data processing (BDP) and examine the feasibility of applying advanced security features to meet the needs of modern multi-tenant, multi-level data analysis. The research methodology was to survey of the status of security mechanisms in BDP systems and identify areas that require further improvement. Access control (AC) security services were identified as priority area, specifically Attribute Based Access Control (ABAC). The exemplar BDP system analyzed is the Apache Hadoop ecosystem. We created data generation software, analysis programs, and posted the detailed the experiment configuration on GitHub. Overall, …

Machine Learning In Fiber Optics, Xiaowen Hu

Electronic Theses and Dissertations, 2020-2023

Recent burgeoning machine learning has revolutionized our ways of looking at the world. Being extraordinarily good at pattern recognition, machine learning has been widely applied to many fields to solve challenging problems. This dissertation demonstrates the applications of machine learning on scanning-free fiber-optic imaging systems (FOISs), and on the design of anti-resonant fibers. In the first part, we propose a semi-supervised learning framework called the adaptive inverse mapping (AIP) to stabilize the imaging performance through multimode fibers (MMFs). We show that if the state of the MMF is traced closely, the output images can be used as probes to correct …

A Causal Comparative Study Of Principal Perceptions Of Instructional Leadership Practices In One Central Florida School District, Tracy Shenuski

Electronic Theses and Dissertations, 2020-2023

The purpose of this causal comparative quantitative study was to examine relationships between types of crises, perceptions of instructional leadership practices, and length of service as principal. Data from a purposive sampling using the Instructional Leadership, Job Satisfaction, and Retention Survey (ILJSRS) were collected from principals in one district and analyzed to assess the impact crises played on their perceptions of instructional leadership practices and their retention. Independent variables included demographics, type of crisis (weather, violence, health), and principal retention. The dependent variable was perception scores on the ILJSRS. Statistical analyses included the General Linear Model with Robust Standard Errors …

Towards More Efficient Collaborative Distributed Data Analysis And Learning, Zixia Liu

Electronic Theses and Dissertations, 2020-2023

Modern information era gives rise to the persistent generation of large amounts of data with rapid speed and broad geographical distribution. Obtaining knowledge and understanding via analysis and learning from such data have invaluable worth. Features of such data analytical tasks commonly include: data can be large scale and geographically distributed; computing capability demand can be enormous; tasks can be time-critical; some data can be private; participants can have heterogeneous capabilities and non-IID data; and multiple simultaneously submitted data analytical tasks can be possible. These bring challenges to contemporary computing infrastructure and learning models. In view of this, we develop …

Observation Of Anisotropic Properties In Topological Quantum Materials, Gyanendra Dhakal

Electronic Theses and Dissertations, 2020-2023

The discovery of the three-dimensional topological insulator (TI) has enormously impacted our understanding of quantum materials. These novel materials are characterized by the topology rather than some order parameters. The TIs are the materials that exhibit insulating properties in the bulk while possessing the metallic state on the surface. These surface states are protected by time-reversal symmetry; as a result, the electrons featuring surface states are spin-polarized. After the discovery of TIs, other topological semimetallic (TSM) states were discovered, which enhanced the understanding and widened the reach of topological materials. Discoveries of various topological phases such as Dirac, Weyl, nodal …

Complex Dna Mixture Deconvolution By Single Cell Genomics: Direct Physical Cell Subsampling And High Sensitivity Dna Typing, Kaitlin Huffman

Electronic Theses and Dissertations, 2020-2023

Biological evidence is often found at crime scenes and can comprise of DNA from the victim(s) and perpetrator(s) to a crime as well as from individuals with no direct relationship to the incident. This can complicate analysis as DNA mixtures are one of the more difficult sources of biological evidence to interpret. Probabilistic genotyping (PG) has greatly aided in mixture analysis. However, even with PG, standard bulk mixture approaches do not always result in probative results as allele overlap, artifacts, or low-level minor contributors inevitably cause genotype information loss. Therefore, deconvolution of forensic DNA mixtures into their individual component DNA …

Volume Bragg Gratings With Complex Phase Structures: A Three-Dimensional Foundation For Laser-Beam Engineering, Lam Mach

Electronic Theses and Dissertations, 2020-2023

Bragg diffraction is a natural phenomenon that arises from the coherent interference of scattered waves in multilayer structures with a well-defined periodicity. In practice, the physical size of these multilayer structures varies depending on the intended application, from micrometer-thick dielectric mirrors with tens of layers to centimeter-long Bragg gratings with ten-thousands of layers. The scope of this work centers around a unique class of multilayer elements developed in bulk photo-thermo-refractive (PTR) glass – the volume Bragg grating (VBG). The content of this thesis places an emphasis on the volume nature of these Bragg devices, implying a three-dimensional structure whereupon arbitrary …

Ground Penetrating Radar And Public Archaeology At Eastonville Memorial Gardens Cemetery, Richard Ott

Electronic Theses and Dissertations, 2020-2023

This thesis explores the intersection of geophysical prospection methods such as ground penetrating radar (GPR) and public archaeology through a case study with the descendant community of Eatonville Memorial Gardens, an African American cemetery located in Central Florida. This moves beyond traditional uses of GPR, such as focusing on locating unmarked burials by engaging the descendant community in each stage of the research project. This expanded focus is advocated for because cemeteries serve as ancestral landscapes providing such communities with a sense of place and history. The maintenance and care of such places often reflect the same social conditions affecting …

Automatic Posture Correction Utilizing Electrical Muscle Stimulation, Ravi Kiran Kattoju

Electronic Theses and Dissertations, 2020-2023

Habitually poor posture can lead to repetitive strain injuries that lower an individual's quality of life and productivity. Slouching over computer screens and smart phones, asymmetric weight distribution due to uneven leg loading, and improper loading posture are some of the common examples that lead to postural problems and health ramifications. To help cultivate good postural habits, researchers have proposed slouching, balance, and improper loading posture detection systems that alert users through traditional visual, auditory or vibro-tactile feedbacks when posture requires attention. However, such notifications are disruptive and can be easily ignored. We address these issues with a new physiological …

Assessing The Relative Influence Of Interpersonal Relationship Factors On Probationer Rule Compliance, Lucas Alward

Electronic Theses and Dissertations, 2020-2023

The quality of probation officer-client therapeutic alliance (TA) can result in improvements in supervision success including reduced rearrest and non-compliance. However, less is known about how clients' perceptions of procedural justice during interactions with their probation officer (PO) influence the quality of the PO-client TA and impact supervision outcomes. While extant research supports the importance of procedural justice for shaping citizen's legitimacy beliefs and compliance to the law within policing, we know little about how and whether these concepts influence the PO-client TA in community supervision and whether they impact compliance. Using self-reported survey data collected from a sample of …

G-Quadruplex Reporters: Structural Studies And Application For Visual And Fluorescent Detection Of Point Mutations In Nucleic Acid Sequences, Ryan Connelly

Electronic Theses and Dissertations, 2020-2023

DNA-based diagnostics traditionally utilize hybridization probes: strands of DNA complimentary to a target sequence that, upon binding, generate a signal to indicate the presence of the target. The classic hybridization probes are the molecular beacon (MB) and TaqMan probes, both single DNA strands with a fluorophore and quencher at opposing ends. Despite their widespread use in applications such as qPCR due to their ability to multiplex with a variety of bound fluorophores, these probes have several shortcomings: temperature limitations for selective target recognition and differentiating single-nucleotide polymorphisms, intrinsic design limitations to interrogate some target sequences, and a high relative cost …

Terahertz Spintronics With Antiferromagnetic Insulators, Gyan Khatri

Electronic Theses and Dissertations, 2020-2023

The existence of the THz gap in the electromagnetic spectrum is not only preventing the advancement of several technologies but also hindering research and developmental activities due to a lack of research facilities operating in the gap region. There is a plethora of materials with dynamics lying in the THz gap region whose study could potentially lead to the development of new technologies for the generation, detection, and processing of THz signals. Antiferromagnets are gaining recent interest due to their high frequency dynamics lying in the THz region, and their potential uses as active elements in THz spintronics devices have …