A Photometric Study Of The Eclipsing Binary V574 Lyrae, Abigail L.J. Rickards

Electronic Theses and Dissertations

Variable stars provide unparalleled insight into stellar evolution and eclipsing binary variables are particularly excellent laboratories for determining stellar physical parameters and behavior. These parameters, when taken with those of other stars, can be used to evaluate current theories on stellar evolution and stellar structure. With the view of contributing useful data to this cause, a photometric study of the eclipsing binary system V574 Lyrae (Lyr) was undertaken to determine the system's physical parameters and to create a model of the system. Data were collected with a 0.36 m Ritchey-Chr'etien telescope and the Sloan g', r', and i' filters and …

Pedagogy Of Video-Game Scoring For Collegiate Application And An Original Score For The Nintendo Switch Title, Renaine, Mason Lieberman

Electronic Theses and Dissertations

Video-game scoring as an academic subject is quite new. There are limited opportunities for college-level students to study this field, and even fewer that are offered remotely via online sources. My goal for this thesis was to craft educational modules, courses, or other academically-based resources, that would develop a student’s musical skills, professional instincts, and educational groundings in the game audio world. These courses could then serve as an academic model for the development of other classes. After conducting research informed by my professional background as a composer in the video game industry (with a particular focus on my experiences …

Culturally Responsive Training For Secondary English Language Teachers, Tina Mccorkle

Electronic Theses and Dissertations

In this quantitative study, I investigated the effectiveness of a training intervention program to positively impact secondary teacher attitudes and perceptions of culturally responsive teaching (CRT). The study is relevant in Alvin Independent School District given the demographic shift resulting in an increase in Hispanic students and students learning English as a second language. The purpose of the study was to investigate teacher attitudes and perceptions of CRT to determine if there was a statistically significant difference according to pre- and post-survey data in order to evaluate the effectiveness of the CRT program intervention. The CRT research from Ladson-Billings (1992) …

A Deep Learning Approach To Detect Diabetic Retinopathy In Fundus Images., Winston R. Furtado

Electronic Theses and Dissertations

Background: Diabetic retinopathy is a disease caused due by complications of diabetes mellitus which can lead to blindness. About 33% of the US population with diabetes also show symptoms for diabetes retinopathy. If not treated, diabetic retinopathy worsens over time by progressing through two main pathological stages of non-proliferative and proliferative and four clinical stages. While the diagnostic accuracy of detecting diabetic retinopathy through machine learning have shown to be successful for OCT images, the accuracy of ultra-widefield fundus images have yet to be fully reported. This paper describes a method to non-invasively detect and diagnose diabetic retinopathy from ultra-widefield …

Suture-Less Trocar Site Closure Clip, Hares A. Patel

Electronic Theses and Dissertations

Introduction: Following laparoscopic surgery, there is a need, in many cases, to close trocar sites to prevent hernias. Currently, devices that exist on the market are suture based, but the lack of standardization in the suturing techniques together with the time-consuming nature of the procedure leads to the need for improvement in trocar site closure products. Trocar closure sites do not need to be fully closed on the fascial layer; rather, sufficiently blocking the hole at the abdominal wall can significantly reduce post-operative herniation. A retrospective study on trocar site herniation (TSH) after laparoscopic surgery indicates a TSH incidence …

Experimental Investigation Of The Manufacture Of Tunable Graphene Oxide Filter Membranes Using Intense Pulse Light, Joshua H Kotter

Electronic Theses and Dissertations

Reduced graphene oxide is a thin, strong, and inexpensive material with a channel and pore structure that make it a promising candidate for a filtration material. Reduced graphene oxide has been produced and tested in the laboratory, but a lack of scalable manufacturing techniques have limited its commercial use.

This thesis has shown that graphene oxide can be rapidly manufactured with an industrially scalable flash reduction process. The flash reduction process uses 0.58 millisecond pulses from a xenon lamp to reduce the graphene oxide film in less than a minute. Results for partially reduced graphene oxide membranes tuned by the …

Effect Of Block Scheduling On End-Of-Course Test Achievement For High School Students Diagnosed With Attention Deficit Hyperactivity Disorder, Jose Anthony Sanchez

Electronic Theses and Dissertations

In the United States over the past 25 years there has been a trend education using block scheduling in high schools (Zelkowski, 2010); however, there has been limited research into the impact that school-day schedules have on students diagnosed with Attention Deficit Hyperactivity Disorder (ADHD). The purpose of this study is to compare the effects of traditional scheduling versus block scheduling on Algebra I, Geometry, English II, and English III End-of-Course standardized assessment achievement for high school students diagnosed with ADHD. Data were analyzed from different Southeastern Louisiana high school sites. Student Algebra I, Geometry, English II, and English III …

The Effect Of Image Repair On Perceived Relationship Satisfaction After Infidelity, Sydney M. Shields

Electronic Theses and Dissertations

In the wake of infidelity, romantic partners must decide how to move beyond the act of betrayal. Although infidelity can be concealed, sometimes others learn of the infidelity, which may impel a cheater to take steps to repair his or her image. This study examined the use of image repair on social media (Facebook), specifically the tactic of admitting responsibility, in the wake of infidelity. After reading a vignette describing infidelity by the male partner in a heterosexual relationship and viewing a social media post from the cheater, participants answered a series of questions about the couple’s perceived relationship satisfaction. …

The Convergence Of Engagement Leadership And Leader-Driven Retrenchment Business Strategies: A Phenomenological Approach, Larry Mitchel Hill

Electronic Theses and Dissertations

Scholars and practitioners have studied employee engagement extensively since the late 1990s. Because engaged employees can create a competitive advantage for business enterprises, academics and practitioners have emphasized the need for further research into the relationship between leadership, context, and engagement. There is a gap between knowledge of employee engagement and leaders’ ability to directly engage employees through decisions, actions, and behaviors. Researchers have suggested that employees’ situational assessment also influences their engagement. The purpose of this study was to explore how leader-driven retrenchment strategies during a severe and protracted economic downturn interacted with business leaders’ ability to engage their …

The Impact Of 1:1 Technology Initiatives On New Literacy In The Secondary Elar Classroom: A Metasynthesis, Abbey Matatall

Electronic Theses and Dissertations

Guided by socio-cultural learning theories of Vygotsky’s (1979) social-constructivism and cultural-historical activity theory (Engeström, 2014), the researcher of this study formed three research questions regarding the emergent research trends on 1:1 technology initiatives in the secondary ELAR classroom and new literacy. In response, a meta-synthesis of relevant studies was conducted. To provide an initial framework for the synthesis, the researcher provided conceptual definitions and backgrounds of 1:1 technology initiatives, socio-cultural learning theories, and new literacy, supported by the history of literacy movements that led to this new model of literacy. Utilizing narrowed inclusion and exclusion criteria, the research yielded …

Faculty Socialization Of Graduate Students’ Attitudes And Perceptions Toward The Irb, Elisa Jolls

Electronic Theses and Dissertations

Graduate student mistrust and fear of the institutional review board (IRB) is an issue that is commonly encountered at academic institutions. Research has shown that students emulate and are vulnerable to assuming the norms of faculty, which is supported by research that shows that students who have difficult relationships with the IRB often have faculty mentors who also have difficult relationships with the IRB. The purpose of this qualitative case study was to explore how novice researchers’ perceptions of the IRB changed through their research submission and IRB interactions required during the IRB approval process, as well as to identify …

Nano-Biophysical Approaches For Assessing Nanoparticle Interactions With Biological Systems, Zachary Untracht

Electronic Theses and Dissertations

Understanding interactions between nanoparticles and biological systems is fundamental for the development of emerging nano-biotechnology applications. In this thesis, I present an investigation of zinc oxide (ZnO) nanoparticles interactions with biomolecules in two separate studies. The first section of my thesis covers tracking and detection of ZnO nanoparticles using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). ZinkicideTM is a bactericidal ZnO nanoparticle which has been developed for agriculture. The characterization of Zinkicide in biological media and in solution has been difficult due to its high dispersibility and ultra-small size. SDS-PAGE is considered a golden standard for protein qualitative interpretations. In …

I Have Questions, Lorena Matejowsky

Electronic Theses and Dissertations

The poems in this thesis explore mid-life feminism, family, mental illness via anxiety and panic, identities of southern girlhood/womanhood, and the challenges of a social media saturated life. Mothering plays a large part in many of these poems, both embracing it and confronting gendered expectations about it. Telling the truth is explored through poems about white women's complicity in racist systems in the southern United States and how being quiet about it benefits us. Fear and the myriad ways it has manifested in my life is a common thread in this work, especially the fears that accompanied white girls growing …

Let's Take A Selfie! Living In A Snapchat Beauty Filtered World:The Impact It Has On Women's Beauty Perceptions, Angelina Cruz

Electronic Theses and Dissertations

Snapchat's beauty filters have become a prominent force in the social media realm. It's vital in understanding the impact in how Snapchat's beauty filters shape beauty standards among young women. This became the primary motivation of conducting this qualitative study. Six focus groups were conducted to explore the depths of why female college students between the ages of 18-25 decide to post either selfies with Snapchat's beauty filters applied or natural images. Dialectical tensions theory was used as the foundation for this study to explore both the internal and external discursive struggles young women face when deciding to post natural …

The Natural Exile: A Study Of Twenty-First Century Cuban-American Narratives Focusing On The Elderly's Plight, Jasmine Parson

Electronic Theses and Dissertations

Developed from the similarity between exile theory and age studies, the term "exile" is expanded to a natural form of exile because of the shocking temporal shift that reconstructs social interaction, familial dynamics, and the aging body. Using Heidegger's theoretical work Being in Time, Simon de Beauvoir's The Coming of Age, and Jean Améry's On Aging as insight, this literary analysis captures how the elderly protagonists Goyo from Cristina García's King of Cuba, Máximo from Ana Menéndez's "In Cuba I was a German Shepherd," and Soledad from Cecilia Rodríguez Milanés's "Abuela Marielita" experience a natural exile among society, their family …

The Influence Of Preovulatory Estradiol On Uterine Transcriptomics And Proteomics Around Maternal Recognition Of Pregnancy In Beef Cattle, Emmalee J. Northrop

Electronic Theses and Dissertations

Preovulatory estradiol has been reported to play a crucial role in pregnancy establishment and maintenance, but the mechanism by which estradiol exerts its effects has not been well characterized. Specifically, the interactions between the maternal uterine environment and the developing conceptus can greatly impact pregnancy success or loss. The objective of this dissertation is to determine the effects of preovulatory estradiol exposure on uterine and trophectoderm transcriptomes, and uterine luminal fluid (ULF) protein composition. Beef cows/heifers were synchronized, artificially inseminated (d 0), and grouped into either high (highE2) or low (lowE2) preovulatory estradiol. Uteri were flushed to collect d16 conceptuses …

Nike's Corporate Social Advocacy (Csa) Practices As Related To Strategic Issues Management (Sim) And Threats To Organizational Legitimacy, Eve Heffron

Electronic Theses and Dissertations

This research examined how corporate social advocacy (CSA) and corporate social responsibility (CSR) efforts impacted perceptions of authenticity. Using an experimental survey, participants were randomly exposed to Nike's actions related to the Black Lives Matter (BLM) movement via mock-online news articles. Participants completed a survey that contained Likert-type scale items regarding attitudes (perceived corporate intent, perceived authenticity, brand trust, and brand credibility) and behavioral intentions (word of mouth intentions (WOM), and purchase intention (PI)). Results indicated that positive attitudes significantly increased when Nike implemented an action step after taking a public stance on a controversial social-political issue. Further, results revealed …

The Relativistic Harmonic Oscillator And The Generalization Of Lewis' Invariant, Daniel Reinhart

Electronic Theses and Dissertations

In this thesis, we determine an asymptotic solution for the one dimensional relativistic harmonic oscillator using multiple scale analysis and relate the resulting invariant to Lewis' invariant. We then generalize the equations leading to Lewis' invariant so they are relativistically correct. Next we attempt to find an asymptotic solution for the general equations by making simplifying assumptions on the parameter characterizing the adiabatic nature of the system. The first term in the series for Lewis' invariant corresponds to the adiabatic invariant for systems whose frequency varies slowly. For the relativistic case we find a new conserved quantity and seek to …

The Unacceptable Rise: An Investigation Of School Shootings In The United States, Tracy Gulliford

Electronic Theses and Dissertations

This research study examined teachers' understanding of risk factors and characteristics of potential perpetrators of school shootings, as well as the steps to take when they are identified in students. Participants completed a survey that contained Likert-type scale items regarding self efficacy and open-ended questions regarding school violence experiences. A mixed methods analysis revealed three primary conclusions. First, teachers have high levels of self-efficacy regarding the importance of and ability to deal effectively with troubled students. This conclusion suggests that teachers do internalize the relevance of this issue to them. Second, this study revealed a gap in terms of the …

Assisted Living: Stories, Donovan Swift

Electronic Theses and Dissertations

Assisted Living is a collection of stories that explores themes of parenthood, brotherhood, old and new love, adultery, financial strife, and the many faces of loss. The collection offers different points of view, which allow the reader to experience these themes within varying lives and situations. For example, the eponymous "Assisted Living" is from the perspective of a pet-sitter at the brink of losing both her job and husband, while "Holy Mother" explores the point of view of a wife coming to terms with her affair and the physical injury that has changed her husband. "The World of Reptiles" follows …

Trauma, Thomas Sokolowski

Electronic Theses and Dissertations

This collection of stories explores the intersection of emotional and physical trauma. In the title story, a rookie EMT relives his brother's death while caring for a young patient who may be permanently paralyzed. "The Rounds at Blanding" follows a military policewoman at a National Guard training base who confronts a strangely determined trespasser as well as painful memories of her son's absentee father. Other stories, such as "Men My Mother Loved," "Watching Mr. Pete," and "Fighting for Faran," consider trauma-as-heritage by asking young protagonists to navigate the loss, wounds, and abuse of their parents. In the collection, pain is …

The Poems You Don't Own, Emma Reinhardt

Electronic Theses and Dissertations

The Poems You Don't Own is a collection of poems whose speakers explore the journey from the simplistic perspective of childhood to the confusion of adolescence to the first experiences of sexuality, heartbreak, and grief, examining the religious, societal, and gender expectations that influence those experiences. The collection's reverse-chronological order allows readers to travel back through the many experiences that shape a present moment. In poems such as "The Game of Life," the speaker considers the gender roles that begin to influence our perception of relationships from a young age, while poems such as "What to Know Before Writing about …

The Knitting Witch, Katherine Ervin

Electronic Theses and Dissertations

Dangerous, magical women live in a world which explores queerness and antagonistic female relationships against the backdrop of Midwestern crafting culture. Craft magic is beauty and cruelty entwined, a perfect tool for witches to use against each other. After her mother is murdered, the eponymous knitting witch inherits a kidnapping and extortion ring, the victims sewn into enchanted quilts and hidden. With her mother dead, political squabbles consume the knitting witch's coven and rival magical families put pressure on her to give up the quilts, including the dangerous Ma family, whose daughter the knitting witch loves. The knitting witch must …

The Storm, Kara Delemeester

Electronic Theses and Dissertations

Set in a world where natural disasters start increasing in both intensity and frequency, this work examines what it means to be self-reliant when the world is falling apart. As the largest recorded hurricane heads for the eastern coast of the United States, Sierra Egan evacuates her Florida home with her boyfriend and makes her way toward safety - a shelter in Atlanta, Georgia. When Sierra and her boyfriend breakup and part ways along the evacuation route, Sierra assumes her history of self-reliance will work to her benefit. But an anti-government couple, a beach cult, a lonely storm chaser, an …

Brief Behavioral Health Intervention Program For Patients With Stable Coronary Artery Disease, Chelsea Wiener

Electronic Theses and Dissertations

Healthy eating, physical activity, stress management, and smoking cessation are widely recognized as essential for preventing and treating coronary artery disease (CAD). Research on lifestyle programs for patients with CAD has largely focused on long-term interventions (e.g., several months to one-year in duration). Further, many studies have recruited patients immediately post-cardiac event. By contrast, evaluation of brief lifestyle interventions for stable patients treated in outpatient cardiology is lacking. The present study evaluated the feasibility, acceptability, and efficacy of a 3-session behavioral health lifestyle program for patients with stable CAD being treated in an outpatient cardiology clinic. Thirty-three patients were randomized …

Cognitive And Vascular Risk Factors For Depression: Testing An Integrated Theoretical Framework, Rosanna Scott

Electronic Theses and Dissertations

Objective: Theoretical models that have guided the study of later-life depression include the vascular depression hypothesis, depression-executive dysfunction syndrome, and the CaR-FA-X model. Evidence suggests these can be integrated into a single developmental model of disordered mood (and its associated overgeneral memory feature) in later-life to delineate a mechanism of the vascular depression effect and identify modifiable intervention targets. Methods: In older adults, four serial mediation models evaluated the relationships between (1) vascular burden and depressive symptoms via executive control and rumination, and (2) vascular burden and autobiographical memory specificity (AMS) via executive control and rumination. In younger adults, four …

Fabrication Of Polyelectrolyte Nanoparticles Through Hydrophobic Interaction, Ruginn Porce Catarata

Electronic Theses and Dissertations

Anticancer drugs like gemcitabine (GEM) are used to treat cancers such as, pancreatic ductal adenocarcinoma (PDAC). However, the use of free gemcitabine yields challenges including cytotoxicity to healthy cells and poor circulation time. By encapsulating GEM in nanoparticles these challenges can be overcome. In this study poly(acrylic acid) (PAA)-GEM nanoparticles are fabricated by coupling GEM onto PAA. The particle formation is driven by the hydrophobic interaction of GEM, which collects in the core of the nanoparticle, forming a PAA shell. The nanoparticles were optimized by studying the PAA/GEM ratio and pH during fabrication. Characteristics of the nanoparticles including size, morphology …

Development Of 3d Printed And 3d Metal-Based Micro/Nanofabricated, And Nano-Functionalized, Microelectrode Array (Mea) Biosensors For Flexible, Conformable, And In Vitro Applications, Charles Didier

Electronic Theses and Dissertations

Emerging fields such as "Organs on a Chip", disease modeling in vitro, stem cell manufacturing and wearable bioelectronics are demanding rapid development of 3D Microelectrode Arrays (MEAs) for electrical interfacing with biological constructs. The work reported in this thesis focuses on two developmental tracks: "Dynamic 3D MEAs" and metal microfabrication for 3D MEAs. In the first part of the thesis, we explore the capabilities and limitations of 3D printed microserpentines (µserpentines) and utilize these structures to develop dynamic 3D microelectrodes. Analytical modeling of µserpentines flexibility followed by integration into a flexible Kapton® package and PDMS insulation are demonstrated. These 3D …

Applications Of Geometric And Spectral Methods In Graph Theory, Lauren Morey Nelsen

Electronic Theses and Dissertations

Networks, or graphs, are useful for studying many things in today’s world. Graphs can be used to represent connections on social media, transportation networks, or even the internet. Because of this, it’s helpful to study graphs and learn what we can say about the structure of a given graph or what properties it might have. This dissertation focuses on the use of the probabilistic method and spectral graph theory to understand the geometric structure of graphs and find structures in graphs. We will also discuss graph curvature and how curvature lower bounds can be used to give us information about …

Supervised Machine Learning Techniques For Short-Term Load Forecasting, Harish Amarasundar

Electronic Theses and Dissertations

Electric Load Forecasting is essential for the utility companies for energy management based on the demand. Machine Learning Algorithms has been in the forefront for prediction algorithms. This Thesis is mainly aimed to provide utility companies with a better insight about the wide range of Techniques available to forecast the load demands based on different scenarios. Supervised Machine Learning Algorithms were used to come up with the best possible solution for Short-Term Electric Load forecasting. The input Data set has the hourly load values, Weather data set and other details of a Day. The models were evaluated using MAPE and …