Digital Commons Network^™

The Role Of Geographic Context In Tornado Risk, Risk Perception, And Protective Action Behavior, Sarah L. Jackson

Theses and Dissertations

Our current understanding of tornado risk, risk perception, and protective action behavior lacks proper spatial consideration of local physical and social geographic contexts. This investigation asks how the conceptual drivers of tornado risk (geographic context, risk perception, and response) interact to create the spatiality of tornado risk. The study proposes that the inclusion of geographic context and its influence on perception and behavior produces differential tornado risk and seeks to determine which factors contribute to such variability. A novel, researcher-designed Tornado Risk of Place (TROP) conceptual model guides the methodological framework, incorporating statistical and geospatial analytics in an Illinois State …

Words Evaporate, The Images Remain: Testing Visual Warnings In The Context Of Intentions To Vape Among U.S. Adults As An Expansion Of The Theory Of Planned Behavior (Tpb), Carl Arland Ciccarelli

Theses and Dissertations

This dissertation applied the Theory of Planned Behavior (TPB) model variables of attitudes, subjective norms, and perceived behavioral control, along with the variable of fear to explain individuals’ behavioral intentions to vape. Previous studies have explored the social appeal, intrigue, and potential consequences of vaping among adolescent and college student populations. However, these past studies have largely relied upon focus groups and self-reported data conducted among samples of teen, adolescent, and college student populations. Thus, the aims and designs of these previous vaping studies may have been lacking in construct validity and a theoretical approach from which to explain behavioral …

Laboratory Management Models In Core Facilities, Karmen Michael Owen

Theses and Dissertations

Core biotechnology facilities are often defined as laboratories that house shared resources for research. These laboratories are of great importance to research communities because a large portion of scientific research data is generated at these facilities. Different investigators can use core facilities to help further their research. In a university setting, there are several management strategies from small cores that house a specific type of instrument, to large cores that house many different technologies. Funding strategies also differ significantly, from those that are funded by a small group of well-funded investigators, to cores managed by a specific department or school, …

Developing A Vision-Based Framework For Measuring And Monitoring Water Resource Systems Using Computer Vision And Deep Learning Techniques, Seyed Mohammad Hassan Erfani

Theses and Dissertations

Increased vulnerability of water systems to extreme events and climate change is among the profound challenges facing the management of water resource systems around the world. Extreme events, including droughts, floods, and natural hazards have become more frequent and intensive, particularly in coastal regions. Floods, for instance, caused tens of billions of US dollars losses and put the lives of thousands in danger, globally. To cope with the adverse consequences of floods, a wide range of structural, non-structural, and emergency measures are studied and deployed by flood management sectors. Various flood simulation, mapping, and forecast systems have been developed to …

Modulation Of Eif2Α Signaling And The Integrated Stress Response By Targeted Therapeutic Attenuation Of Pkr Activity Contributes To Protection Of Dyt-Prkra Cells From Apoptosis, Kenneth L. Frederick

Theses and Dissertations

Luteolin is a natural flavonoid present in vegetables, fruits, and medicinal herbs that possesses anti-oxidative, anti-cancer, and anti-inflammatory properties. In this study, we investigated the effect of luteolin on the integrated stress response (ISR), which is an evolutionarily conserved intracellular signaling network essential for adapting to environmental stresses to maintain healthy cells. Dysregulated ISR is involved in the etiology of many human diseases including the movement disorder DYT-PRKRA which is caused by mutations in the PRKRA gene. PRKRA encodes for PACT, the protein activator of interferon-induced, double-stranded RNA (dsRNA)-activated protein kinase PKR.PACT-mediated PKR activation regulates the …

Extending The Convolution In Graph Neural Networks To Solve Materials Science And Node Classification Problems, Steph-Yves Mike Louis

Theses and Dissertations

The usage of graph to represent one's data in machine learning has grown in popularity in both academia and the industry due to its inherent benefits. With its flexible nature and immediate translation to real life observed objects, graph representation had a considerable contribution in advancing the state-of-the-art performance of machine learning in materials.

In this dissertation proposal, we discuss how machines can learn from graph encoded data and provide excellent results through graph neural networks (GNN). Notably, we focus our adaptation of graph neural networks on three tasks: predicting crystal materials properties, nullifying the negative impact of inferior graph …

Exploring The Agenda-Setting Dynamics Between Traditional Newspapers And Twitter During Mass Shooting Event, Yujin Heo

Theses and Dissertations

The purpose of this dissertation is to explore the intermedia agenda-setting interplay between traditional news media and Twitter in the wake of mass shooting incidents. Applying Latent Dirichlet Allocation (LDA) topic modeling to data sourced from Twitter, national, and local news, the study investigated the distinct coverage patterns and the extent of their reciprocal influence over time. The findings of this study demonstrated that, in the immediate aftermath of a shooting incident, national news outlets exerted a significant agenda-setting influence on both local media and Twitter discourse. However, as time unfolds, a mutually influential dynamic emerged across all media platforms. …

Supporting Black Students In Sixth-Grade Science Through A Social Constructivist Approach: A Mixed-Methods Action Research Study, Kirk Anthony Heath

Theses and Dissertations

The purpose of this mixed-method action research study was to improve Black students’ performance in my sixth-grade science class by improving their ability to use the claim, evidence, and reasoning (CER) framework. Using criterion-based convenient sampling, I enlisted 17 Black participants, all of whom were underperforming in my science class at a suburban, middle-class, predominantly White public middle school serving Grades 6–8. As a teacher researcher, I implemented and assessed an intervention designed to improve their ability to use the CER framework. Using a mixed-method action research design, I simultaneously collected and triangulated quantitative and qualitative data.

This study may …

Measuring The Impact Of Peer Coaching On Teacher Effectiveness At Friendship County High School, Whittney Michele Mcpherson

Theses and Dissertations

Student success and achievement can be measured in myriad ways; however, the impact of teacher effectiveness in each classroom is an essential part of the formula for student success. Although most teachers work in isolation in their classrooms, it is important for school leaders to support student success by finding effective methods of supporting teachers. This study investigates the instructional coaching of novice teachers as a professional development tool to support student success and achievement. The specific aim of this study was to investigate if an intervention of instructional coaching was effective in supporting the development of equitable and effective …

Framing Police Brutality: An Analysis Of Newspaper Coverage Of Walter Scott’S Murder, Shamira S. Mccray

Theses and Dissertations

This research analyzes news articles about the killing of Walter Scott in 2015 to determine how frames changed over time and across platforms. Previous studies have found that news coverage of police violence against Black men has not always been fair. Instead, the narrative of official sources, like law enforcement, prove dominant. These same research articles typically focus on the way national news outlets frame incidents like Scott’s.

But this thesis takes a deeper look at how state newspapers framed Scott’s murder. I analyzed the frames and sources found in nearly 200 articles published by The Post and Courier and …

The Correlation Between Bilingual Children’S Self-Reported Language Proficiency And Their Scores On Dual-Language Standardized Assessments, Andrea Elise Vargas

Theses and Dissertations

This study aimed to evaluate the relation between bilingual Spanish-English speaking children’s self-reported language proficiencies and bilingual experiences and their scores on norm-referenced standardized dual-language assessments. Additionally, the relation between bilingual children’s self-reported language proficiencies and bilingual experiences and parent reports of children’s Spanish and English input and output was examined. The Houston Questionnaire, a novel tool designed to provide insight into bilingual children’s self-perceptions of language proficiencies and experiences, was administered to gather such information for this study. A sample of bilingual children local to Columbia, South Carolina completed a battery of dual-language standardized assessments in kindergarten, and then …

Shakespeare In Virtual Reality: Social Presence Of Students In A Virtual Reality Book Club, John Funchess Ott Jr.

Theses and Dissertations

The purpose of this mixed methods study was to implement and evaluate the impact of a virtual reality book club on the social presence of students. This research examined participants using virtual reality headsets to study the works of William Shakespeare. This study examined two research questions: 1) How does the implementation of a virtual reality technological innovation affect students’ knowledge of Shakespearean works? 2) How does the implementation of a virtual reality technological innovation affect social presence in students? Participants interacted within virtual worlds with one another and the researcher. Data was collected using a pre-post assessment test, writing …

Academic Impacts Of Intergenerational Trauma: Assessing The Relationship Between Ace Scores Of Parents And The Language And Literacy Development Of Their Elementary-Aged Children, Paige Lee Banaszak

Theses and Dissertations

This paper contributes to the current literature by investigating factors that may contribute to language and literacy difficulty among children, to support the future development of effective intervention techniques. The data analyzed in this paper was collected from children and families participating in Reach Every Reader, a research study currently being conducted to improve literacy outcomes in the U.S. by developing a computer-adaptive screening assessment tool to identify children at risk for language and literacy difficulties early in their educational development. Children enrolled in kindergarten through third grade completed tasks that target language and literacy skills, and their parent(s) completed …

An Exploration Of Racial Trauma And Protective Factors In Black Youth, Daria Chantal Thompson

Theses and Dissertations

Black students’ experiences in school can vary due to racism and discrimination within and outside of the classroom, which can impact their academic progress and overall well-being. In this three-part study, the impact of discrimination is observed to determine if there is a long-term effect of these situations and, if so, determine if there is utility to implement school-based resources to decrease these negative effects. The first study examined whether ethnic-racial socialization in childhood could moderate against symptoms of trauma in young adulthood that were potentially caused by discrimination from peers and teachers in childhood through hierarchical regressions. The second …

Digital Health Design For Improving Treatment Decisions, Akanksha Singh

Theses and Dissertations

In the age of artificial intelligence and large datasets, information retrieval by querying large databases is an impossible task for the common user due to the information overload. Recommender Systems (RS) for commercial applications like YouTube, Amazon and Netflix were designed to support users by finding items of interest based on their user profiles and various filtering techniques. Health Recommender Systems (HRS) is a category of RSs that provides immense opportunities for application across several healthcare domains and contexts including treatment decision support. Unlike RS applications that focus on analyzing consumer choices, a key differentiator for HRS applications is the …

Platform Of Growth: An Analysis Of Earnings And Social Media Engagement Among Esports Athletes, Colleen Marie Dibble

Theses and Dissertations

Esports consists of online gaming, cyber sport, and virtual sport in a highly competitive environment. The industry has grown tremendously over the last 30 years (Leroux-Parra, 2020). Professional esports competitions are often now contested with a large scale, global audience, and millions of dollars potentially at stake in some competitions. Hundreds of esports athletes earn a living from the multi-billion-dollar esports industry. In addition to players earning salaries and prize pool money in a professional setting, many colleges have offered scholarships to enrolled students and have begun to offer esports-related curriculums (Dominguez, 2022). Networks such as ABC, ESPN, and TBS …

Sentiment Analysis Of Swedish And Finnish Twitter Users’ Views Toward Nato Pre- And Post- 2022 2nd Russian Invasion Of Ukraine, Alexander Scott Fulham

Theses and Dissertations

This study seeks to analyze the changes in Swedes’ and Finns’ opinions toward the North Atlantic Treaty Organization (NATO) in light of the 2022 2nd Russian Invasion of Ukraine. To do so, a large dataset of geotagged tweets containing keywords related to NATO is analyzed using lexicon-based sentiment analysis to study spatiotemporal trends. The study shows that overall discussion remains very neutral, with less than a quarter of all tweets having a non-zero sentiment score, and differs markedly from public opinion polling in both countries while spatiotemporally, the discussions is concentrated in the major population centers and exhibits little month …

Feasibility Of A Parent-Focused, Stress Management Intervention To Decrease Adolescent Bmi, Reduce Stress, And Increase Well-Being Among African American Families, Colby J. Kipp

Theses and Dissertations

African American adolescents in the United States experience a higher prevalence of obesity as compared to their White counterparts. This health inequity presents a public health concern as consequences of weight-related chronic diseases often persist into adulthood and are increasingly problematic. As chronic stress has been found to be higher among African American youth compared to White adolescents, it presents as a potential barrier to participation for African American families in health promotion interventions. Additionally, it may be beneficial to target stress in health promotion programs as a modifiable factor in conjunction with health behaviors that may improve outcomes related …

Gpu-Enabled Genetic Algorithm Optimization And Path Planning Of Robotic Arm For Minimizing Energy Consumption, Yichuan Cao

Theses and Dissertations

The robotic arm represents a complicated mechanical system and advanced engineering principles in robotics, enabling precise and efficient manipulation and interaction with objects in a variety of applications, such as manufacturing, healthcare, space exploration, and other industries. In most cases, energy consumption of robotic tools has been given little consideration due to their perceived insignificance compared to the benefits they offer. However, the increasing capacity demands of factories and the expanding use of robotic arms necessitate careful evaluation and reduction of energy consumption. In this regard, given a task configuration, adjusting the arm's movement path emerges as one of the …

Expanding On The Solid State Chemistry Of F-Element Chalcogenides, Logan Skyler Breton

Theses and Dissertations

An overarching goal in solid state chemistry is to achieve predictability regarding the synthesis of compounds with desired properties. While this goal is far from being reached, solid state chemists are hard at work synthesizing and characterizing new materials to further our understanding of structure-property relationships, and to expand our fundamental knowledge to rationalize the outcomes of solid-state syntheses. With the advent of new solid state synthetic methods, novel compounds exhibiting exciting properties are still being discovered today. The infancy of these synthetic methods promises a myriad of undiscovered compounds with potentially interesting properties which has resulted in a recent …

Parent Facilitation Of Child Emotion Regulation In Autism Spectrum Disorder, Aimee K. Rovane

Theses and Dissertations

Parents play a substantial role in their children's emotional regulation (ER) abilities, promoting both adaptive and maladaptive development. Children with autism spectrum disorder (ASD) often have difficulties regulating their emotions, manifesting in externalizing behavioral issues (Mazefsky & White 2014). Though there are many similarities to parents of typically developing (TD) children, parents of children with ASD facilitate their children's ER development (i.e., emotion socialization) in response to unique challenges, often developing resiliency but other times contributing to their children’s dysregulation and behavioral challenges. Using Morris et al.'s (2007) Tripartite Model of Family Impact of Children's Emotion Regulation and Adjustment as …

A Bayesian Spatial Scan Statistic For Normal Data, Laasya Velamakanni

Theses and Dissertations

Scan statistics are useful methods for detecting spatial clustering. While they were initially developed to detect regions with an excess of binomial or Poisson events, spatial scan statistics have been extended to detect hotspots in other types of data including continuous data. They have many applications in different fields such as epidemiology (e.g. detecting disease outbreaks), sociology (e.g. detecting crime hotspots), and environmental health (e.g. detecting high-pollution areas). Spatial scan statistics identify a ‘most likely cluster’ and then use a likelihood ratio test to determine if this cluster is statistically significant. Spatial scan statistics have been extended to the Bayesian …

Neural Mechanisms Of Lexical Semantics: Investigating The Roles Of Hubs And Distributed Action-Perception Systems, Nicholas Andrew Riccardi

Theses and Dissertations

Understanding the meaning of words and concepts is vital for communication, forming relationships, and navigating everyday life. Loss of this knowledge through brain damage can have drastic consequences for one’s health and well-being. It is therefore important to learn how this information is organized anatomically in the brain. In this dissertation, I report a series of structural and functional neuroimaging studies in healthy adults and survivors of stroke seeking to understand how lexical semantics are represented. Specifically, I used a variety of tasks to examine the contributions of putative ‘hubs’ and distributed action-perception systems. Results indicated that damage or disruption …

Predicting Material Structures And Properties Using Deep Learning And Machine Learning Algorithms, Yuqi Song

Theses and Dissertations

Discovering new materials and understanding their crystal structures and chemical properties are critical tasks in the material sciences. Although computational methodologies such as Density Functional Theory (DFT), provide a convenient means for calculating certain properties of materials or predicting crystal structures when combined with search algorithms, DFT is computationally too demanding for structure prediction and property calculation for most material families, especially for those materials with a large number of atoms. This dissertation aims to address this limitation by developing novel deep learning and machine learning algorithms for effective prediction of material crystal structures and properties. Our data-driven machine learning …

The Effects Of Technology Integration On Academic Performance And Engagement Of Third Grade Social Studies Students: A Mixed Methods Study, Ashley Megregian

Theses and Dissertations

The purpose of this study was to evaluate the impact of technology integration on third grade social studies students' academic performance and their engagement with the content of map skills at Peony Elementary. The study took place during the Fall of 2022 with 14 third grade social studies students. There is low academic performance and a lack of engagement from elementary students both nationally and locally. This research explored three questions related to the effects of integrating technology on student academic performance and engagement. The first question looks at the impact of integrating technology on third grade students’ academic performance …

Capturing Visuals In Hospitality: A Multi-Dimensional Exploration Of Photographs In Interdisciplinary Research, Ningqiao Li

Theses and Dissertations

The widespread practice of photo-taking and sharing behavior fosters research on photographs to probe into consumer behavior and business strategies. Consequently, the critical role of photographic research has been acknowledged in the fields of marketing as well as tourism and hospitality. To delve deeper into understanding photographs, this dissertation carried out three independent but interconnected studies to examine photographs from both macro and micro perspectives.

The first study systematically reviews photographic research across sociology, marketing, computer science, and tourism and hospitality. It explores key topics, methodologies, and theories, and compares the merits and drawbacks of various research methods employed in …

Multimodal Digital Literacy Practices: Perspectives Of L2 Academic Writing Instructors, Priscila Jovazino Bastos Medrado Costa

Theses and Dissertations

The purpose of my dissertation study was to explore the experiences and perceptions of English language instructors about the use of multimodal digital technologies in the teaching of academic writing. Writing academically in English as a second language (L2) is complex and multilayered for international students, and multimodal digital literacy practices are essential in the writing process in the age of information technology. The literature on multimodal digital literacies applied to L2 English instruction and to academic writing and the literature on teachers’ impressions about instructional technologies are vast. However, there is a need for further studies that address the …

Reading Strategies: Impact On Fifth Grade African American Males’ Reading Comprehension And Motivation To Read, Patrice Antoinette Barrett

Theses and Dissertations

The purpose of this action research was to implement four close reading strategies (Aha moment, Hmm moment, B.U.R.N. strategy, and R.A.P.) and evaluate its impact on fifth grade African American male students’ reading comprehension skills and their experiences with reading at Wisteria Lane Elementary. This intervention study focused on two research questions: how does the implementation of close reading strategies impact the reading comprehension skills of fifth grade male students, and in what ways does the implementation of close reading strategies influence fifth grade male students’ motivation to read in other classes? Nationally, African American boys suffer with weak reading …

Individual Differences In Perspective-Taking During Language Comprehension, Kanan Benjamin Luce

Theses and Dissertations

Previous research has found mixed results for a link between executive function and perspective-taking. One proposed reason for this is that perspective-taking during comprehension tasks may not be internally reliable. This dissertation presents two large individual differences experiments with multiple perspective-taking during comprehension and executive function measures. We aimed to see (1) whether people were consistent in their ability to take perspectives during comprehension, (2) if the typical tasks used in this area were reliable, and (3) whether executive function measures predicted perspective-taking ability. We found a lack of reliability of some of the most commonly used perspective-taking during comprehension …

Instructional Coaching: A Support For Increasing Engagement In Middle School Mathematics, Christi Ritchie Edwards

Theses and Dissertations

This observational case study employed a qualitative design to investigate the impact of student-centered instructional coaching and self-determined professional development on student engagement in middle school mathematics. Research demonstrates that engaging students in the learning process increases their attention and motivates them to engage in higher-level critical thinking. Teachers who adopt a student-centered approach to instruction increase opportunities for student engagement. Instructional coaches are used as a professional development tool to support teachers with student-centered instructional practices to engage students in their learning. This four-week study involved two sixth-grade mathematics teachers conducting Number Talks in one of their classes of …