Digital Commons Network^™

Language Ideologies And Racialization Of Language: Multilingual Learners' Experiences In The First Year In A Community College., Yohimar Sivira Gonzalez

Electronic Theses and Dissertations

Community colleges have become key sites for preparing diverse and immigrant students for the transition to the workforce and four-year institutions. Yet, despite the recent growths of Multilingual Learners in community colleges, few studies focus on how students experience the first year in college after completing their ESL programs and their relations with instructors and how instructors perceive and interact with students institutionally classified as English as a Second Language (ESL) students. I use theories of language ideologies and racialization of language to understand multilingual learners’ experiences in the first year of college and how interaction with instructors shaped those …

Stigma Described By Attempt Survivors With Diverse Gender And Sexual Identities In Their Suicide Stories: A Hermeneutic Phenomenological Dissertation., Sara Williams

Electronic Theses and Dissertations

Suicide is a profoundly impactful issue across societies. Gender and sexually diverse (GSD) populations exhibit rates of suicidal ideation and behavior far greater than those of cisgender heterosexual populations. Stigma impacts health outcomes among GSD populations through stress exposure and response processes. Compound stigma is experienced when individuals occupy positions in multiple stigmatized identity groups and can have multiplicative effects on adverse outcomes. Further, opportunities for positive social support and resilience building may be limited due to the narrow convergence of stigmatized identity groups. Stigma among GSD suicide attempt survivors (GSDAS) is an important phenomenon to explore in order to …

Changing Public Perception Of Dementia: The Effect And Credibility Of Three Informational Models., Diana Hedrick

Electronic Theses and Dissertations

Background: Since the 1970s, Alzheimer’s disease and dementia have been portrayed in a medicalized, symptom-focused manner to help spread awareness, improve diagnosis, and push for treatment research. In recent decades, there has been movement towards a biopsychosocial, person-centered approach that considers social and psychological factors that interact with biological diseases processes. Common biopsychosocial approaches retain an emphasis on deficits and symptoms. New research has integrated positive psychology constructs and dementia. This integration of positive psychology principles and dementia care and research has the potential to more accurately capture the experience of having dementia. Objectives: This dissertation tested how the portrayal …

Re-Engineering Cardio-Oncology Testing Using Biomimetic Heart Slice Cultures., Jessica Miller

Electronic Theses and Dissertations

28% of drug withdrawal from the market are due to unforeseen disruptions in cardiomyocyte contractility and electrophysiology. The most commonly used platforms for drug testing are in vivo animal models and in vitro cell culture models. While both have been of paramount importance for the discovery and detection of many cardiotoxicities and mechanisms of action, they lack the ability to model an intact human myocardium. This work aims to establish cardiac tissue slices, which are 300-micron thin tissue sections taken from the left ventricular myocardium, as an alternative platform for cardio-oncology studies, specifically cardiotoxicity testing. Additionally, this work aims to …

Alpha, Beta-Unsaturated Aldehydes: The Underrepresented Markers Of Disease., Saurin Sutaria

Electronic Theses and Dissertations

The peroxidation of unsaturated fatty acids is a widely recognized metabolic process that creates a complex mixture of volatile organic compounds including aldehydes. Elevated levels of reactive oxygen species in cancer cells promote random lipid peroxidation, which leads to an increase in a variety of aldehydes. Many of these volatile aldehydes are exhaled and are of interest as potential markers of disease. Chapter 1 presents a review of reported aldehydes in the exhaled breath of lung cancer patients. alpha,beta-Unsaturated aldehydes, detected primarily when derivatized during exhaled breath preconcentration, are underreported in the reviewed articles. Chapter 1 concludes with our hypothesis …

Mejorar La Raza: Measuring The Implicit Anti-Black Racial Bias Of Multiracial Individuals., Katalina Traxler

Electronic Theses and Dissertations

This dissertation sought to examine if there are implicit anti-Black racial bias differences across multiracial people who identify as Black/White compared to multiracial people who do not identify as Black/White, accounting for age, citizenship, and education level. It was also determined if age, citizenship status, and education level moderate the relationship between multiracial identity and implicit anti-Black racial bias. The theories guiding this dissertation were: Heider’s Balance Theory, Multiracial Identity Development, and White Identity Development. The data were collected from Project Implicit, a non-profit organization and international collaborative of researchers who are interested in implicit social cognition. The data analysis …

Sex And The Superman: Gender And The Superhero Monomyth, Christopher Maverick

Electronic Theses and Dissertations

Since the 1938 introduction of Superman, superheroes have been ever-present in American popular culture. Indeed, with the modern preponderance of comic book movies dominating the American cinematic box-office, superhero fantasy is arguably the most important genre of fiction being produced in the contemporary moment. Peter Coogan, Kurt Busiek and many other scholars have discussed the prominence and relevance of the superhero fantasy as a genre. Still others, including Umberto Eco and Marco Arnaudo, have asserted that the superhero is not so much a genre and as it is the evolution of mythology. In Sex and the Superman, I argue …

My Journey Through Cinematic Camera Movement, Tim Johnson

Electronic Theses and Dissertations

This thesis explains my journey to becoming a cinematographer and finding my cinematic style through both trial and error and classroom instruction at Stephen F. Austin State University, learning advanced camera and lighting techniques, and working on the 2022 summer feature as a Director of Photography (DP). I will begin with a little bit of history and then move into my influences, experiences, and preferences as it pertains to cinematography and camera movement.

Sequencing And Functional Characterization Of A Latrodectus Geometricus Defensin, Lg-Defensin, Jacklyn Victoria Thompson

Electronic Theses and Dissertations

Defensins are small, cysteine-rich, immune related proteins described to be the most widespread family of invertebrate antimicrobial peptides. Presently, there is limited information regarding spider defensins. In this study, a new defensin peptide was described in Latrodectus geometricus, Lg-defensin. The full open reading frame was resolved using RACE and de novo assembly, followed by a bioinformatical analysis and phylogenetic alignment to determine conserved sequence patterns and structural similarities to other defensins. Next, the functionality of Lg-defensin was determined using in vitro RNA interference to assess what impact silencing had on the spider’s ability to control a gram-positive and gram-negative bacterial …

Religion And Spirituality As A Coping Mechanism For Racial Microaggressions: A Literature Review, Ashia Anderson

Electronic Theses and Dissertations

Racial discrimination is still very prevalent in the United States. People of color continue to face racism despite efforts to eradicate it. Sometimes it comes in a more subtle form known as a microaggression which can be an everyday occurrence for many people (Lewis & Neville, 2015). This is a unique stressor in that it targets an aspect of an individual that cannot be changed, and it requires the individual to decide to either confront their offender or handle it in a different manner. The goal of this paper is to perform a literature review to investigate if African Americans …

Turning Ligands On Their Side: Computational Investigation Into The Binding Of N2o And N2 In Transition Metal Complexes, Cole Donald

Electronic Theses and Dissertations

Common greenhouse gas nitrous oxide (N₂O) is a thermodynamically potent and environmentally benign oxidant, making it a desirable target for metal center activation. Unfortunately, N₂O is a poor ligand for transition metals due to its weak sigma-donating and pi-accepting properties; as a result, few transition metal complexes capable of interacting with N₂O have been found. As the primary source of all nitrogen in organisms, abundant gas dinitrogen (N₂) is a crucially important tiny molecule and an essential part of daily existence. However, due to its inertness, it has limited practical uses in …

Surviving The Seventies: How Ten East Texan Women Labored For Their Families, Emily B. Smith

Electronic Theses and Dissertations

The 1970s were a period of political and social turmoil. Many women left the domestic sphere and entered public life to work, seek higher education, and pursue a career. Yet many factors worked against them. They entered a workforce that treated them poorly or went to a university with limited degrees for women. The seventies were also a time of social, cultural, and political upheaval marked by a deep recession in which quality jobs were harder to find and layoffs were common. This oral history project seeks to document the experiences of East Texan women during this tumultuous period. And …

Escape Beneath: An Original Game Score Inspired By An Analysis Of Garry Schyman's Music, Daniel Cooper

Electronic Theses and Dissertations

Video-game music has grown into a vast array of different styles, sounds, and applications. As a newer field of music, game scoring has begun to receive high acclaim. Garry Schyman has become one of the most successful composers within the video-game industry. His music has received many awards and nominations throughout the years. Despite this, research and analysis into his compositions and techniques are almost non-existent. This thesis studies his techniques within the video-game scores for BioShock, BioShock 2, BioShock Infinite, Middle Earth Shadow of War, and Torn; and then applies them into an original …

The Effects Of Esports On Sport-Confidence And Imagery In Athletes, Kelton Mahon

Electronic Theses and Dissertations

With the growing popularity of esports, athletes may be able to experience potential cognitive and performance-related benefits as a result of watching others play esports. In the current study, student athletes were randomly assigned to watch a sport esport video or a control esport video and then completed measures of sport-confidence and imagery. It was predicted that participants in the sport esport video group would score higher than the control esport video group in the cognitive efficiency and resilience aspects of sport-confidence, as well as the cognitive general, motivational general-mastery, and motivational general-arousal domains of imagery. The overall results did …

Effects Of Prescribed Fire Regimes On White-Tailed Deer (Odocoileus Virginianus) Browse, Forage, And Nutrient Availability In The Pineywoods Ecoregion Of Texas, Wyatt L. Bagwell

Electronic Theses and Dissertations

Fire is a management tool for white-tailed deer (Odocoileus virginianus) habitat, influencing browse availability, herbaceous production, and nutrient content. In 2020 and 2021, this study utilized 46 plots across East Texas to assess these habitat components. A stem count index survey method was used to assess browse utilization prior to April in both years, and preferred browse species were clipped and analyzed for nutrient availability, and herbaceous production was also measured. Additionally, white-tailed deer population data, browse survey data, and recent fire history were obtained from five different wildlife management areas to examine their relationship. Deer had preferences …

Differentiate Metasploit Framework Attacks From Others, Gina Liu Ajero

Electronic Theses and Dissertations

Metasploit Framework is a very popular collection of penetration testing tools. From auxiliaries such as network scanners and mappers to exploits and payloads, Metasploit Framework offers a plethera of apparatuses to implement all the stages of a penetration test. There are two versions: both a free open-source community version and a commercial professional version called Metasploit Pro. The free version, Metasploit Framework, is heavily used by cyber crimininals to carry out illegal activities to gain unauthorized access to targets.

In this paper, I conduct experiments in a virtual environment to discover whether attacks originated from Metasploit Framework are marked with …

Does Teacher Bias Increase Referral Of Blacks To Special Education For A Reading Disability?, Blade Wise Perry

Electronic Theses and Dissertations

Research shows that Black students are over-represented in special education for a reading disability based on the inaccuracy of teacher referrals. Teachers' accuracy in referring Black students to special education for a reading disability is not an extensively researched area. This study aims to determine if teachers' biases and attitudes toward Black students impacted their ability to accurately make a special education referral for a reading disability for this population of students. For this study, teachers completed a questionnaire, cultural competence self-assessment checklist, four vignettes, and a post-vignette question to determine if their personal biases and attitudes impacted their willingness …

The Mechanisms Of Mitochondrial Dysfunction In T Cell Aging During Chronic Viral Infection, Madison B. Schank

Electronic Theses and Dissertations

Human immunodeficiency virus (HIV) and hepatitis C virus (HCV) infections induce a myriad of disturbances to CD4 T cell functions, including mitochondrial compromise, excessive inflammation, increased telomeric DNA damage and attrition, cellular exhaustion and senescence, and accelerated aging. In this dissertation, the mechanisms underlying metabolic failure, accelerated aging, and cellular dysfunctions were evaluated in CD4 T cells from healthy subjects (HS) treated with a telomere-targeting drug (KML001) or HCV-infected individuals or people living with HIV (PLHIV) compared to HS. We observed that KML001-induced telomere injury resulted in mitochondrial swelling and decreased mitochondrial membrane potential, cellular respiration, mitochondrial DNA (mtDNA) copy …

"Now, Then, Then:" An Original Composition And Examination Of The Influence Of Blues, Bluegrass, And Rock In Western Concert Music, David Klock

Electronic Theses and Dissertations

This thesis examines four pieces by three composers and one creative team, focusing on connections to bluegrass, blues, and rock music in each. The pieces are Raphael by Bryce Dessner, Cognitive Consonance II: Westering by Christopher Trapani, Bog Bodies and other Macabre Miniatures by Nicolas Lell Benavides, and “Three Dots and a Dash” by Punch Brothers. Each of these works uses distinct instrumentations, but every ensemble includes guitar in some fashion. This examination informs the original composition entitled Now, Then, Then, scored for violin, cello, electric guitar, and marimba. In this original composition, Klock uses devices found within these …

Understanding Racial Disparate Treatment Of Juvenile Interpersonal Violent Offenders In The Juvenile Justice System Using Focal Concerns Theory., Suzanne Overstreet

Electronic Theses and Dissertations

Disproportionate minority contact (DMC) is a salient issue that has been found at every stage of the decision-making process in the juvenile justice system (Hawkins & Kempf-Leonard, 2005; Kempf-Leonard, 2007; Bishop, 2005; Leiber, Bishop, & Chamlin, 2010; Leiber & Stairs, 1999). Existing research indicates that DMC influences adjudication for drug, property, and personal crimes (Fergusson, Horwood, & Swain-Campbell, 2003; Frazier, Bishop, & Henretta, 1992; Leiber & Jamieson, 1995; Leiber & Mack, 2003; Hawkins & Kempf-Leonard, 2005; Leiber, 2015). Because intimate partner violence (IPV) is a major public health problem and global concern (Djamba & Kimuna, 2008; Goo & Harlow, 2012; …

Examining The Effects Of Npra Antagonist Anantin On Sci-Induced Ployuria., Lindsey Zipperer

Electronic Theses and Dissertations

Polyuria, or the over production of urine, is a prevalent condition that significantly impacts the quality of life in individuals suffering from a spinal cord injury (SCI). Post-SCI induced polyuria is thought to have been associated with altered levels of vasopressin (AVP), atrial natriuretic peptide (ANP), and natriuretic peptide receptor A (NPRA). In the present study, the function of NPRA was analyzed in the rat contusion model using anantin, an NPRA antagonist. A daily dose of either 100 µg of anantin or vehicle was administered intraperitoneally immediately following the SCI surgery and continued until termination, 4 weeks post injury (wpi). …

Academic Achievement And Degree Attainment Among College Students With Children., Katrina Elliott

Electronic Theses and Dissertations

Using data from the Beginning Postsecondary Students Longitudinal Study (BPS) (National Center for Education Statistics, n.d.) from 2012 to 2017 acquired by the National Center for Education Statistics (NCES) survey program, this study addresses the research questions of whether there is a difference in degree attainment of earning a bachelor’s degree in the time period from 2012 through 2017 and whether there is a difference in academic achievement as defined by students’ grade point average between students who have dependent children and those who do not have dependent children between the ages 18 to 29 attending a four-year institution after …

La Casita Center: An Accompaniment Based Approach To Social Justice And Social Service., Ben Harlan

Electronic Theses and Dissertations

La Casita Center is a Louisville based nonprofit organization that accompanies Latinx immigrants in the Louisville Metro area. and that is led and staffed by Latina immigrants. In this thesis, I investigate how employees of this Latinx-immigrant led nonprofit organization, navigate challenges to both administer service and build community using the model of accompaniment. Organizations like La Casita are critically important for Latinx newcomer communities in the United States and as neoliberal and nativist-inspired policiescontinue to oppress and marginalize, La Casita provides a model for what it means to center inclusion, belonging, community, and solidarity. In a global landscape of …

Foreign Policy In Media: An Examination Of The Captain America Films., Kat Hernandez

Electronic Theses and Dissertations

Popular culture and media are consumed daily by billions around the world, media which can contain meaningful and politically relevant material. The three Captain America films from the 2010s represent this phenomenon in the presentation of Captain America as a nationalist superhero with geopolitically relevant storylines. The direction and production of these films illustrate significant parallels to foreign policy choices of the United States. Through an interpretive analysis of the Captain America films: Captain America: The First Avenger, Captain America: The Winter Soldier, and Captain America: Civil War, this project seeks to analyze Captain America’s image and …

The Effect Of Volatile Organic Compounds On Endothelial Function And Atherogenesis., Samantha Mcfall

Electronic Theses and Dissertations

Volatile organic compounds (VOCs) are a group of pervasive air pollutants that are released into the atmosphere from both anthropogenic and environmental sources. Recent epidemiological studies suggest that exposure to various VOCs is associated with an increased risk of cardiovascular disease. However, the relationship between VOCs and cardiovascular disease is not well-studied. Using animal models and three select VOCs, benzene, xylene, and trichloroethylene, we studied the effects of VOCs on endothelial injury and benzene-induced atherogenesis. We found that exposure to benzene and xylene increased circulating endothelial microparticles, depleted progenitor cells, and increased platelet activation. Following the exposure to the representative …

The Role Of Mmp-3 In Copper Oxide Nanoparticle-Induced Pulmonary Inflammation And Fibrosis., Yuanbao Zhang

Electronic Theses and Dissertations

Copper oxide nanoparticles (Nano-CuO) are wildly used in medical and industrial fields and our daily necessities. However, the biosafety assessment of Nano-CuO is far behind their rapid development. This study was to investigate the potential mechanisms underlying Nano-CuO-induced pulmonary inflammation and fibrosis, especially to determine whether Nano-CuO exposure could dysregulate MMP-3, an important mediator in pulmonary fibrosis, and its roles in Nano-CuO-induced pulmonary inflammation and fibrosis. Aim 1 was to investigate whether exposure to Nano-CuO caused MMP-3 dysregulation in lung epithelial cells and the role of MMP-3 in Nano-CuO-induced alteration of cell junction-associated proteins. The potential mechanisms that might be …

Hgf-Mediated C-Met Signaling In Human Corneal Epithelial Cells., Kate Tarvestad

Electronic Theses and Dissertations

Vision is often regarded as the primary sense of humans. The cornea is the main refractive tissue that permits light through to the retina, allowing a clear image. When the cornea sustains damage, it opens a pathway for infection and blindness through fibrotic processes. Healing the corneal tissue is critical for vision restoration and pain alleviation. Growth factors and their cognate receptors are currently under investigation as tools to restore proper corneal physiology. We hypothesize that manipulating the hepatocyte growth factor (HGF)/ c-Met signaling pathway is one route to promote quality corneal healing. This thesis investigates the signaling, trafficking, and …

The Role Of Generative Adversarial Networks In Bioimage Analysis And Computational Diagnostics., Ahmed Naglah

Electronic Theses and Dissertations

Computational technologies can contribute to the modeling and simulation of the biological environments and activities towards achieving better interpretations, analysis, and understanding. With the emergence of digital pathology, we can observe an increasing demand for more innovative, effective, and efficient computational models. Under the umbrella of artificial intelligence, deep learning mimics the brain’s way in learn complex relationships through data and experiences. In the field of bioimage analysis, models usually comprise discriminative approaches such as classification and segmentation tasks. In this thesis, we study how we can use generative AI models to improve bioimage analysis tasks using Generative Adversarial Networks …

Models And Algorithms For Trauma Network Design., Sagarkumar Dhirubhai Hirpara

Electronic Theses and Dissertations

Trauma continues to be the leading cause of death and disability in the US for people aged 44 and under, making it a major public health problem. The geographical maldistribution of Trauma Centers (TCs), and the resulting higher access time to the nearest TC, has been shown to impact trauma patient safety and increase disability or mortality. State governments often design a trauma network to provide prompt and definitive care to their citizens. However, this process is mainly manual and experience-based and often leads to a suboptimal network in terms of patient safety and resource utilization. This dissertation fills important …

A Psychometric Analysis Of The Comprehensive School Survey (Css) Middle School Student Version., Stephen Leach

Electronic Theses and Dissertations

School climate is increasingly recognized by scholars and policymakers as a crucial factor associated with students’ educational experiences. Hence, practitioners endeavor to equitably measure and improve school climate to promote favorable student academic and behavior outcomes. Unfortunately, school climate research is fragmented, and a research-practice gap exists in best scale development and validity testing practices. The result is a proliferation of practitioner-developed school climate measures lacking solid theory-grounding and evidence to support intended score interpretations and uses. In response, Whitehouse et al. (2021) proposed a validity testing framework for practitioner-developed instruments aimed at supporting culturally responsive school climate measurement. Their …