Digital Commons Network^™

Efficient String Algorithms With Applications In Bioinformatics, Sahar Hooshmand

Electronic Theses and Dissertations, 2020-2023

The work presented in this dissertation deals with establishing efficient methods for solving some algorithmic problems, which have applications to Bioinformatics. After a short introduction in Chapter 1, an algorithm for genome mappability problem is presented in Chapter 2. Genome mappability is a measure for the approximate repeat structure of the genome with respect to substrings of specific length and a tolerance to define the number of mismatches. The similarity between reads is measured by using the Hamming distance function. Genome mappability is computed for each position in the string and has several applications in designing high-throughput short-read sequencing experiments. …

Learning Context-Sensitive Human Emotions In Categorical And Dimensional Domains, Pooyan Balouchian

Electronic Theses and Dissertations, 2020-2023

Still image emotion recognition (ER) has been receiving increasing attention in recent years due to the tremendous amount of social media content on the Web. Many works offer both categorical and dimensional methods to detect image sentiments, while others focus on extracting the true social signals, such as happiness and anger. Deep learning architectures have delivered great suc- cess, however, their dependency on large-scale datasets labeled with (1) emotion, and (2) valence, arousal and dominance, in categorical and dimensional domains respectively, introduce challenges the community tries to tackle. Emotions offer dissimilar semantics when aroused in different con- texts, however "context-sensitive" …

Ultraviolet Irradiation Combined With Chlorine Dioxide Pre-Oxidation For Disinfection By-Product Control, Paula Campesino

Electronic Theses and Dissertations, 2020-2023

The use of ultraviolet (UV) light and chlorine dioxide (ClO2) as an advanced oxidation process (AOP) has been investigated at the bench-scale to understand the effects of their use on disinfection by-product (DBP) formation potential (FP) in chlorinated groundwater (GW) and surface water (SW) supplies. Two GWs and two SWs of varying qualities were subject to a series of AOP treatment sequences at the bench scale: sodium hypochlorite, to serve as a baseline; ClO2-Cl2, UV-Cl2, and UV-ClO2-Cl2. In these treatment sequences, Cl2 is used as a primary and secondary disinfectant. Several water quality parameters were measured throughout the experiments, including …

Interfacial Properties Modulate Water Entry Dynamics For Spherical Projectiles, Daren Watson

Electronic Theses and Dissertations, 2020-2023

Rigid bodies impacting liquid pools incite splashing and air-entraining cavities that depend on impactor shape, entry speed, surface texture, and free surface conditions. In this body of work, we investigate the influence of interfacial properties on water entry dynamics for free-falling spherical projectiles. Our investigations translate to everyday fluid-structure interactions that are complex and generally conclude beyond the temporal acuity of the naked eye. High-speed videography between 1000 -- 3200 fps is used to digitize the water entry process and measure salient splash features under different initial conditions. We assess splashes arising from the impacts of free-falling hydrophilic spheres with …

The Dollar General: Continuous Custom Gesture Recognition Techniques At Everyday Low Prices, Eugene Taranta

Electronic Theses and Dissertations, 2020-2023

Humans use gestures to emphasize ideas and disseminate information. Their importance is apparent in how we continuously augment social interactions with motion—gesticulating in harmony with nearly every utterance to ensure observers understand that which we wish to communicate, and their relevance has not escaped the HCI community's attention. For almost as long as computers have been able to sample human motion at the user interface boundary, software systems have been made to understand gestures as command metaphors. Customization, in particular, has great potential to improve user experience, whereby users map specific gestures to specific software functions. However, custom gesture recognition …

Pathological Tremor As A Mechanical System: Modeling And Control Of Artificial Muscle-Based Tremor Suppression, Christopher Kelley

Electronic Theses and Dissertations, 2020-2023

Central nervous system disorders produce the undesired, approximately rhythmic movement of body parts known as pathological tremor. This undesired motion inhibits the patient's ability to perform tasks of daily living and participate in society. Typical treatments are medications and deep brain stimulation surgery, both of which include risks, side effects, and varying efficacy. Since the pathophysiology of tremor is not well understood, empirical investigation drives tremor treatment development. This dissertation explores tremor from a mechanical systems perspective to work towards theory-driven treatment design. The primary negative outcome of pathological tremor is the undesired movement of body parts: mechanically suppressing this …

Creation And Analysis Of An Enhanced Rascal-Lvc Framework Capable Of Simulating Ionizing Radiation Damage To Emergency Responders During A Nuclear Power Plant Disaster: A Case Study In Unmanned Aerial Vehicle Electronic System Survivability, Buder Shageer

Electronic Theses and Dissertations, 2020-2023

This study developed and analyzed the use of a live virtual constructive (LVC) framework capable of simulating ionizing radiation damage to Unmanned Aerial Vehicles (UAV) during a nuclear power plant disaster. UAV response promises greater safety to humans over helicopters as well as provides longer survivability in the presence of irradiated environments. However, electronics in unmanned systems are subject to radiation damage and over time eventual failure. A LVC simulation framework may offer an independent and low-cost assessment of equipment life expectancy. Knowing life expectancy of equipment for operational scenarios is critical for emergency management planners. This research creates an …

The Gamification Framework Of Military Flight Simulator For Effective Learning And Training Environment, Daeho Noh

Electronic Theses and Dissertations, 2020-2023

The purpose of this thesis is to develop a framework for the gamification of flight simulators to provide an active learning and training environment for military jet pilots. Currently, with the development of visual displays and computer processing capabilities, the modern simulator has made great progress in visual and auditory terms that is incomparable to the past. In addition, functions that were previously implemented through supercomputers and complex hardware devices are now available through desktop computers at an affordable cost. Despite these advances, the simulators so far are thought to have been negligent in building an active learning and training …

Assessing The Potential Of Implementing Blockchain In Supply Chains Using Agent-Based Simulation And Deep Learning, Mohammad Obeidat

Electronic Theses and Dissertations, 2020-2023

In this decade, with the rise of data science accompanying the growth of e-commerce, many technologies have been developed. An example of these technologies is Blockchain, which has appeared to overcome security problems potentially. This research assesses Blockchain's implementation in supply chains through a methodology that uses deep learning and agent-based simulation. A case study was utilized to observe and validate research developments. The unique method predicts intrusions by using deep learning, and agent-based modeling reproduces artificial but convincing agents (e.g., customers, companies, hackers, and cyber pirates) in a computer-generated market. Trust and other relationships are systematically captured to represent …

Pestilence And Poverty: The Great Influenza Pandemic And Underdevelopment In The New South, 1918-1919, Andrew Kishuni

Honors Undergraduate Theses

This study examines the "Spanish" influenza pandemic of 1918-1919 in the U.S. South, using case-studies of Jacksonville, Savannah, New Orleans, and Nashville to sculpt a "Southern flu" more identical to the Global South and the developing world than the rest of the U.S. I examine poverty and political and economic paralysis in the years between the end of Reconstruction and 1918, and the poor results of political indifference on public health and disease control. I also analyze the social and institutional racism against persons of color that defined high infectious disease mortality in Southern cities.

I argue that Southerners faced …

This Woman's Work: Corrosive Power Structures, Gendered Labor And Weariness In Margaret Atwood's The Handmaid's Tale And Oryx And Crake, Taylor J. Pryor

Honors Undergraduate Theses

In her 2007 essay “Slow Death (Sovereignty, Obesity, Lateral Agency),” Lauren Berlant asserts that “in the scene of slow death, a condition of being worn out by the activity of reproducing life, agency can be an activity of maintenance” (759). This concept emphasizes the difficulty of maintaining one’s agency while experiencing chronic exhaustion, or what can be referred to as the “wearied state.” Utilizing Berlant’s theoretical framework, this thesis investigates the concept of weariness in two dystopic texts: Margaret Atwood’s The Handmaid’s Tale (1985) and Oryx and Crake (2003). The respective protagonists of The Handmaid’s Tale and Oryx and Crake …

Visual Rhetorics And Rally Signs: A Study Of Feminist Theory And Progression, Rachel Casey

Honors Undergraduate Theses

This research explores the current directions of the U.S. Women's Movement and the beliefs encompassed by 21^st century feminism through a study of participant rally signs displayed at the 2020 Women's March on Washington. Currently, there is much ambiguity surrounding the values for which feminism stands and further contestation about whether a U.S. Women's Movement exists at all. This study examines public feminist activism in an established social rally to extrapolate goals of the present women's agenda and underlying manifestations of feminist philosophy. Through analysis of personal messages and examination of feminist directions, further implications concerning rational dialogue and …

Macho Remixes: A Collection Of Writings, Daniel A. Hernandez

Honors Undergraduate Theses

Macho Remixes: A Collection of Writings is a thesis containing short stories, poetry, and a personal essay that discuss the matter of toxic masculinity through the representations of male and macho sexuality in the Latinx culture. It covers depictions of how Latinx men have been stereotyped in today’s society. The works included here are my own perspectives of what masculinity means to me as a young multicultural male navigating life. Throughout these texts, I—my speakers and narrators—grapple with understanding the conflicting and oppressive expectations drawn from my roots, particularly those based in Latinx culture. The purpose is considering the negative …

Growing Up Puerto Rican: College Students' Reality Of Staying In Puerto Rico Post-Maria, Bianca M. Pizarro Vázquez

Honors Undergraduate Theses

Puerto Rico has been under influence and colonial rule by the United States since the Spanish-American War of 1898. This has led the island to have partial and limited control over the affairs inside it. The passing of Hurricane Maria on September 20^th of 2017 exposed problems even further. Puerto Rico remains under the control of a Financial Oversight and Management Board since the passing of the PROMESA act (The Puerto Rico Oversight, Management, and Economic Stability Act) signed by President Barack Obama in 2016. This had forced Puerto Rico to make drastic cuts to its public services. One …

Models Of Perception: Lay Theories And Stigma Towards Alcohol Use Disorder, Tori L. Jansen

Honors Undergraduate Theses

Alcohol Use Disorder (AUD) has multiple health and social consequences which negatively affect individuals’ lives. However, the decision to utilize treatment is influenced by a variety of social factors. The stigma associated with AUD may impact individuals’ willingness to seek treatment after drinking is viewed as an issue. A highly stigmatized disorder, perceptions of AUD may be influenced by medical/moral lay theories, responsibility attributions and implicit theories. Once treatment is sought, support from others during the recovery process has been associated with treatment retention rates and success. Lay recovery beliefs, such as change perceptions, influence the amount of support offered …

History Of Involvement With Combat Sports And Severity Of Subtypes Of Psychopathy, Allen Hagen

Honors Undergraduate Theses

Combat sports can be defined as sports that involve the physical domination of opponents in order to win. Previous research on combat sports as they relate to psychopathy and anti-social behavior has produced limited information regarding subtypes of trait psychopathy. While there is evidence suggesting participation in certain combat sports can lead to an increase in anti-social behavior (Endresen & Olweus, 2005), there has never been a direct investigation into primary psychopathy, which has other distinct features such as fearless dominance and lack of remorse. These traits may be useful in the further examination of psychopathologies within a sports context. …

Developmental Effects Of Terpenes On Vanessa Cardui At Varying Temperatures, Mari Irving

Honors Undergraduate Theses

Secondary metabolites are organic compounds produced by plants that are not essential in growth, development, or reproduction. While they are not strictly necessary to complete the plant life cycle, secondary metabolites play key roles in functions like defense against herbivory and the moderation of symbiotic relationships. Terpenes are a major class of secondary metabolites present in all plants, and this class is hypothesized to have diversified in response to specific plant-herbivore interactions. These complex interactions are further complicated by changes in abiotic conditions experienced seasonally. Herbivory is a major biotic interaction that plays out across broad temporal and spatial scales …

Party For One: A Monologue Of The Importance Of Oneself Through Book Arts, Jacob Zhefu Wan

Electronic Theses and Dissertations, 2020-2023

This thesis explores the importance of oneself through sexuality, context, and introspection in the art of book arts. I work with memories, imagination, and consciousness in the form of book arts to express the importance of the self from my personal experience. Through the use of colors, materials, spatial compositions, and other visual components to manifest the content of my art, I want to illuminate the awareness of otherness including gender issues and an individual's vulnerability. Playing with the texts of Chinese and English, I intend to create narratives with languages, images, and other mixed media. In addition to crafting …

Additive Manufacturing Of Copper-Based Alloy By Laser Powder Bed Fusion, Binghao Lu

Electronic Theses and Dissertations, 2020-2023

Copper (Cu) and Cu-alloy are good candidates for the engineered components that require good thermal and electrical conductivity. Since industry often needs sophisticated components that cannot be made easily by traditional methods, such as casting, forging and machining, research for additive manufacturing of copper-based alloy is on demand. Therefore, this thesis focuses on the optimization of laser powder bed fusion (LPBF) of Cu-10 wt.% Sn alloy and pure Cu based on their characteristics such as relative density/porosity, surface roughness, phase constitutes, melt pool dimension, and dendrite arm spacings dimension, determined by optical microscopy, X-ray diffraction and Scanning electron microscope. LPBF, …

Stage Dives And Shared Mics: Ethnographic Perspectives On Community And Networking In The Central Florida Punk Rock Scene, Lauren Friedman

Electronic Theses and Dissertations, 2020-2023

Music remains an important aspect of culture and society, proven by copious academic studies exploring how humans create, experience, and utilize it. The emergence of punk rock as a music genre and scene of interconnected individuals in the mid-to-late 1970s provides significant insight into social and political attitudes of the time. Punk rock's continued existence in the present day reflects similar themes to its first incarnation besides forging new directions for the genre and the scene. In this study I examine social factors within the current Central Florida punk rock scene that contribute to its evolution and longevity. I used …

Theoretical Analysis Of The Conduction Properties Of Self Assembled Molecular Tunnel Junctions, Cameron Nickle

Electronic Theses and Dissertations, 2020-2023

As the size scale of electrical devices approach the atomic scale. Moore's law is predicted to be over for semiconductor devices. Studies into the replacement of semiconductor technology with organic devices was first predicted by Avriam and Ratner[1] in 1974. Since then significant research into molecular based organic devices has been conducted. The work presented in this dissertation explores the theoretical frameworks used to model transport through molecular junctions. We present studies which seek to garner a better understanding of the charge transport through molecular junctions and how the conduction properties can be optimized. We show that a single atom …

The Impact Of Faculty Socialization On Teaching Practices Of Postsecondary Physics Instructors, Claudine Mclaren Turner

Electronic Theses and Dissertations, 2020-2023

This research investigates faculty socialization of college physics instructors and its effect on teaching practice. Results of two studies—a statistical analysis about professional characteristics and teaching practice and an ethnography about culture, professional roles, and teaching practice—are integrated to inform our understanding of the impact of socialization on teaching practice. These findings have the potential to improve institutional and organizational faculty development, as well as improve individual teaching practice and, by extension, student persistence and success. Exploratory factor analysis, latent class analysis, and multiple analysis of variance were used to examine cross-sectional survey data collected from 1,176 postsecondary physics instructors …

An Exploration Of Interactions Between Institutional Agents And College Students Who Are Undocumented In The U.S., Doris Alcivar

Electronic Theses and Dissertations, 2020-2023

The purpose of this qualitative study was to explore the awareness, knowledge, and skills of institutional agents who interact with college students who are undocumented, to inform professional development and practice. Through a survey and interviews, participants revealed familiarity with students who are undocumented and discussed the support provided to them. All interview participants understood the experience of assisting students who are undocumented, as evidenced by six major themes: (a) an understanding of student financial needs, (b) recognizing students' anxiety, (c) providing consistent guidance, (d) establishing supportive collaborations, (e) gaining foundational knowledge, and (f) sharing professional development with others. Participants …

Access And Utilization Of Prenatal Care In Florida And Its Effects On Preterm Birth, Corinne Audette

Electronic Theses and Dissertations, 2020-2023

Preterm birth in the United States is the leading cause of infant morbidity and mortality. The United States spends more per capita on healthcare than any other nation in the world, and still perinatal outcomes are disappointing when compared to other industrialized nations. Research and current clinical practice guidelines support the use of early and consistent prenatal care to lower risks for preterm birth, by acting as a key mechanism to monitor pregnancy and provide timely and appropriate interventions. Significant research has been completed to identify causative factors that lead to preterm birth. Overall, this literature has not had a …

Development Of Facile Microfabrication Technologies For The Fabrication And Characterization Of Multimodal Impedimetric, Plasmonic, And Electrophysiological Biosensors, Cacie Hart

Electronic Theses and Dissertations, 2020-2023

The objective of this dissertation was to develop novel methods of patterning inorganic and organic materials, develop biocompatibility evaluations, and subsequently apply these methods toward developing biosensors and lab-on-a-chip devices, such as Interdigitated Electrodes (IDEs) and Microelectrode Arrays (MEAs) on non-traditional (such as nanostructured and plasmonic) polymer substrates or deploy these methods to enhance precision cellular placement on traditional (glass) MEA substrates. It was hypothesized that a combination of such facile microfabrication techniques and patterning technologies on traditional and non-traditional substrates would increase the sensitivity and selectivity of such sensor platforms by several orders of magnitude, and potentially introduce new …

Removal Of Chemicals Of Emerging Concern And Mass Transfer Modeling In A Nanofiltration Membrane Process, Carlyn Higgins

Electronic Theses and Dissertations, 2020-2023

An investigation of 1,4-dioxane and enantiomeric ibuprofen mass transfer in a nanofiltration (NF) membrane process has been completed. Pilot-scale experiments using a 267 gallon per minute (gpm) split-feed, center-port NF process treating pH 6.5 groundwater revealed a consistent 12 percent removal of 1,4-dioxane despite the variable feed concentration (180 nanograms per liter (ng/L) to 38,400 ng/L) when the water flux and temperature were held constant. Bench-scale, flat-sheet NF membrane experiments treating pH 4.0 synthetic water displayed a 34.5 to 49.5 percent removal of racemic ibuprofen. Removal values were dependent on feedwater concentration (1 to 1,500 microgram per liter (µg/L)), pH, …

Monitoring Pathological Gene Expression And Studying Endogenous Epigenetic Architecture By Crispr/Cas9-Based Tool Development Using Alpha-Synuclein As A Model, Levi Adams

Electronic Theses and Dissertations, 2020-2023

Until recently, complete understanding of the endogenous activity of pathologically relevant genes was out of reach and research was confined to in situ work, plasmid-based constructs and artificial model systems. The development and expansion of the CRISPR/Cas9 genome editing technique has enabled us to explore the molecular underpinnings of gene activation using the cell's own endogenous regulatory environment. In this work, we report on the development of a novel tool to monitor the endogenous activity of a causative gene in Parkinson's disease, a-synuclein. We use CRISPR/Cas9 to insert a highly sensitive engineered luciferase at the C-terminal of a-synuclein and assessed …

Examining A Fish Community And Its Response To Coastal Restoration In A Dynamic Coastal Estuary, Richard Mahoney

Electronic Theses and Dissertations, 2020-2023

Globally, coastal habitats are experiencing degradation due to the increase of human population growth, development along coastlines, and a constantly changing climate. This threatens the future production of critical ecosystem services such as shoreline stabilization, water filtration, nursery grounds for marine fauna, and many more. To combat these losses, resource managers are actively restoring coastal habitat. Past research suggests restoring habitats has mixed results; numerous factors influence restoration success. This study is among the first to assess the nekton community in the Matanzas River estuary and uses a BACI experimental design to quantify the effect of habitat restoration on the …

Fluoresence Spectra Study Of Sterically Strained Isomers Of C24h14 Polycyclic Aromatic (Pahs) & Characterization Of A Bio-Sourced, Fluoresent, Ratiometric Ph Indicator With Alkaline Pka, Samar Abd Alelah

Electronic Theses and Dissertations, 2020-2023

This thesis is composed to two studies, each of which relies on recent advances in time-dependent density functional theory (TD-DFT) to accurately model fluorescence spectra. The first study focuses on evaluating the fluorescence spectrum of polycyclic aromatic hydrocarbons (PAHs) having a molecular weight of 302. Three isomers are analyzed including dibenzo[a,j]fluoranthene, dibenzo[a,k]fluoranthene and dibenzo[a,l]fluoranthene. These isomers differ in the placement of one of six aromatic rings and in the amount that each molecule deviates from planarity. The TD-DFT methods are used to compute spectra in an environment that simulates solvent (n-hexane). These computed spectra are compared to vibronically resolved experimental …

Novel Roles Of Rip2 In Inflammation And Resolution, Michael Shehat

Electronic Theses and Dissertations, 2020-2023

Receptor-interacting protein 2 (RIP2) is a kinase which mediates signaling downstream of the bacterial peptidoglycan sensors Nucleotide-binding Oligomerization Domain (NOD) 1 and 2. Genetic loss or pharmaceutical inhibition of RIP2 has been shown to be beneficial in multiple inflammatory disease models with the effects largely attributed to reducing pro-inflammatory signaling downstream of peptidoglycan recognition. However, given the widespread expression of this kinase and its reported interactions with numerous other proteins, it is possible that RIP2 has many other unappreciated roles. In this work, we report the involvement of RIP2 in two novel pathways. First, we demonstrate a NOD2 dependent role …