Digital Commons Network^™

The Hero Within: Developing The Psychological Capital Of First-Generation Students, Mary Elizabeth Sewell

Theses and Dissertations

Psychological capital (PsyCap) is a higher-order construct comprised of four psychological resources: hope, efficacy, resilience, and optimism (HERO), and has been linked to academic achievement and engagement (Hazan Liran & Miller, 2019; Luthans, et al., 2012). Interventions designed to build PsyCap may be particularly helpful for firstgeneration (FG) students who face additional challenges in higher education. This study aimed to: (1) explore differences in PsyCap among FG and continuing generation (CG) students; (2) investigate relationships between PsyCap, GPA, and persistence; and (3) examine the impact of a 2-hour PsyCap micro-intervention (PCI) on FG students’ academic PsyCap, academic achievement (GPA), and …

The Evolution Of Contextualized, Discourse-Based Professional Development To Support Elementary Teachers In The Implementation Of Conceptual Mathematical Teaching Practices, Jennifer Aren Kueter

Theses and Dissertations

This holistic, mixed-methods action research case study aimed to determine the influence of professional development on participants' mathematical teaching practices and how the changes influenced students’ opportunities for discourse. In this two-year study, participants engaged in two professional development phases and implemented new conceptual teaching practices. Quantitative data were collected through surveys and observations. Qualitative data were collected through observations and interviews. Phase-one findings showed that while teachers changed their practices, they were not proficient in conceptual and discourse-based teaching practices. A second phase of professional development occurred using a Community of Practice model. Phase-two findings showed conceptual teaching practices …

Computational Studies Of Bond Dissociation Energies And Organic Reaction Mechanisms, Shehani Thishakkya Wetthasinghe

Theses and Dissertations

This dissertation presents the progress of two independent projects. Chapter 2 and Chapter 3 focus on the first project, which involves material exploration utilizing machine learning techniques. We explore the potential use of cobaltocenium (CoCp⁺₂) derivatives as metal cations in anion exchange membranes (AEMs) for alkaline fuel cells, highlighting their superior thermal and alkaline stability compared to ammonium derivatives. The stability of CoCp⁺₂ can be fine-tuned by varying the substituent groups attached to the cyclopentadienyl ring (Cp) in CoCp⁺₂ .These derivatives encompass a variety of electron-donating and electron-withdrawing groups as substituents on both …

Comprehensive Method For Clarinet Latin American Music Heritage Case Study – Venezuela, Carmen Teresa Borregales

Theses and Dissertations

Latin American music and music-making have much to offer in their performance traditions and richness of genres, which demand technical proficiency and musicianship. In particular, some contemporary new music for clarinet carries traditional elements, including rhythmic patterns, accentuation, articulation, harmonic progressions, and instrumentation, among others. This study proposes an innovative approach to technical practice and skill development for clarinet, based on twelve etudes for clarinet, commissioned from twelve outstanding Venezuelan composers who explore Venezuelan traditional music genres. The results represent a comprehensive method for clarinet, appropriate for advanced-level players, and its application to pedagogical and performance practices.

Examining Recommended Strategies For Accommodating Negatively Worded Items, Jungsun Go

Theses and Dissertations

The purpose of this study was to investigate the effectiveness of four different models (bifactor, CTC(M-1), CTCU and unidimensional) as to optimal model selection when the wording effect associated with negatively worded items was present. A Monte Carlo simulation study was conducted to compare model-data fit and accuracy in parameter estimates of the four models. Design factors include: two true models (CTC(M-1), CTCU models) × three sample sizes (small N=250, moderate N=500, large N=1,000) × two item ratios (positive items:negative items = 2:1 or 1:1) × three distributions (distribution of negative items; symmetric, moderately asymmetric, and extremely asymmetric). The generated …

Hf Radar: Shining A Light On Ocean Currents, Douglas Cahl

Theses and Dissertations

High Frequency (HF) radar systems are commonly used to estimate surface ocean currents over the coastal ocean. Their range depends on their operational frequency and low frequency systems (≤ 10 MHz) can reach distances up to 200 km from the coastline. These systems are used to estimate surface currents by measuring the phase speed of wind-driven waves and comparing the measured speed with that expected theoretically; deviations from the theoretical still-water phase speed are attributed to ocean surface currents. Although HF radar systems are considered a mature technology and the accuracy of the radar-derived surface current estimates is well studied, …

From Roland To Gawain, Or The Origin Of Personified Knights, Clyde Tilson

Theses and Dissertations

Though there is a lot of work on the development of the novel, there has not been sufficient analysis of how it was formed, especially the shift towards the modern protagonist. By analyzing two medieval works, one from the early medieval period and one from the middle of the medieval period, the seeds of this shift can be seen. The works chosen were La chanson de Roland and Sir Gawain and the Green Knight as both have knights with fairly similar expectations, and both have been enduring characters in their respective national identities and literatures. Both Roland and Gawain, being …

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. …

Measurement Of The Total Cross-Section Of Muon Neutrino Charged-Current Coherent Pion Production In Nova Near Detector, Kuruppumullage Don Chatura Dilshan Kuruppu

Theses and Dissertations

Charged Current (CC) coherent neutrino-nucleus pion production is characterized by small momentum transferred to the nucleus, which is left in its ground state. Despite the relatively large uncertainties on the production cross-section, coherent production of mesons by neutrinos represents an important process, as it can shed light on the structure of the weak current and can also constitute a potential source of background for modern neutrino oscillation experiments and searches for Beyond Standard Model (BSM) physics. This Ph.D. thesis presents a new measurement of CC coherent pion production in the NOvA near detector at the Fermi National Accelerator Laboratory (Fermilab). …

Conceptual Design And Preliminary Safety Analysis Of A Proposed Nuclear Microreactor For Mobile Application, A. S. M. Fakhrul Islam

Theses and Dissertations

Conceptual design and preliminary safety analysis of a proposed helium-cooled Micro Nuclear reactor In ONe megawatt (MINION) thermal output is done through three-dimensional computational analysis. Compared with the conventional high temperature gas-cooled reactors (HTGR) that use tri-structural or bi-structural isotropic (TRISO or BISO) fuel particles, MINION uses traditional clad fuel pellets. This greatly simplifies the core design and allows for a substantially more compact design thanks to the fuel’s signif-icantly higher U-235 atom density. Uranium carbide (UC) enriched up to 19.75% in U-235 is used as fuel. In the power-flattened design, U-235 enrichment varies radially between 19.75% and 10.5% in …

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 …

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 …

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 …

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 …

Luis Abraham Delgadillo: A Rediscovery Of His Piano Music, Fanarelia Auxiliadora Guerrero López

Theses and Dissertations

Luis Abraham Delgadillo (1884–1961) is one of the most representative Nicaraguan musicians from the late nineteenth and early twentieth century. Works such as his Sinfonía Indígena (Indigenous Symphony), Suite Teotihuacán (Teotihuacán Suite), and Sinfonía Incaica(Incaic Symphony) positioned him as one of the most important composers and pianists from Latin America. He had great success during his career as a composer and toured North America and South America extensively during the 1930s and 1940s. During these visits, he had many of his works performed, and met other influential composers and musicians such as Carlos Chavez, Amadeo Roldán, Aaron Copland, Arthur …

University, City, And Community: Athletics Urban Renewal Projects And The University Of South Carolina’S Carolina Coliseum And Blatt Physical Education Center, 1964–1971, Theresa M. Harrison

Theses and Dissertations

Higher education institutions (HEIs) often are characterized by how they compete with other institutions. Institutions try to secure the most resources for their benefit, and this often includes expansion and land accumulation.¹ Increasingly common is land acquisition for athletics expansion or enhancement, because successful athletics programs build perception and prominence.² Historically, for large public universities in urban centers, athletics expansion or enhancement has negatively affected surrounding areas. Often, city centers are populated by Black and Brown community members due to the migration patterns of Blacks after World War II and subsequent racial segregation efforts that further segregated Communities …

The Post-Tonal Evolution Of David Diamond: A Theoretic-Analytical Perspective, William John Ton

Theses and Dissertations

David Leo Diamond (1915–2005) was a prolific and highly esteemed American composer whose works were premiered by such notable conductors as Dimitri Mitropoulos, Eugene Ormandy, Serge Koussevitzky, Leonard Bernstein, and Gerard Schwarz. In addition to his significant output and a large circle of famous friends and professional acquaintances, his sphere of influence also included his tenure as professor of composition at the Juilliard School where he worked from 1973 until 1997. His impressive roster of students includes distinguished composers such as Lowell Liebermann, Eric Whitacre, and Vivian Fung. Despite his stature as a composer, however, there is a surprising lack …

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 …

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 …

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 …

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 …

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 …

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 …

A Systems Approach To Design And Plan Sustainable Antifragile Infrastructure Based On Aggregate Footprint And Satisfaction, Farboud Khatami

Theses and Dissertations

The concepts of robustness and sustainability in planning and design of water and energy infrastructures have been extensively explored in previous research, primarily focusing on system reliability, environmental considerations, and economic aspects. This study aims to broaden the understanding of these concepts by offering comprehensive frameworks that capture the essence of robustness and sustainability at two distinct levels.

The first level of investigation focuses on the performance of infrastructure networks during natural disasters. Traditionally, this has been addressed using reliability, resilience, and vulnerability metrics. However, these methods rely on static, deterministic, and non-stationary data, which is inadequate when dealing with …

Streamwise And Vertical Dispersal Of Tracer Stones From A Continuously Supplied Source, Amanda Grace Balkus

Theses and Dissertations

Individual movement of sediment grains is oftentimes studied with the use of tracer stones. Studies performed both in the field, in the laboratory and with numerical models involve installing a patch of stones (tracers) on the bed surface and rarely deep in the deposit. Once installed, particle displacement is monitored over time scales varying from one flood to several years. These studies are useful, for example, to study bedload transport dynamics, understand contaminant fate and transport as well as to identify and define stream restoration practices (e.g. quality of fish habitat). Here we use a vertically continuous model to study …

Automated Fiber Placement Through Thickness Defect Stacking Optimization, Noah Christopher Swingle

Theses and Dissertations

In its 2022 commercial market outlook, Boeing forecasted an 80% increase in the global fleet through 2041 compared to 2019 pre-pandemic levels. This sharp rise in demand will drive pressure onto airframe manufacturers to ramp up production and find more efficient ways to design and manufacture airplanes. Complicating this challenge is the industry’s recent transformation from traditional metal-based airframes towards hybrid composite-metal aircraft. While composites have been used in aviation for decades, aircraft manufacturers are still struggling to design and manufacture quality parts at a high rate. Automated Fiber Placement (AFP) is one of the main manufacturing techniques used to …

Faculty Perceptions Of Readiness And Confidence For Teaching Online: An Evaluation Of Online Professional Development, Kevin Brent Forman

Theses and Dissertations

Regardless of how prepared faculty were to teach online classes, the COVID-19 pandemic forced leaders of universities and colleges and faculty nationwide to pivot to emergency remote teaching and forced students to take online classes. To prepare faculty for the shift to online instruction, administrators in colleges and universities provided resources, such as online trainings, to orient less experienced instructors to principles of online education. The Online Pedagogy Program (OPP) at Midwest Community College was developed quickly in response to the need for urgent training in effective online instruction. After 300 faculty completed the training, an evaluation of the Online …

Effects Of Caffeine On Measures Of Clinical Outcome And Recovery Following Mild Traumatic Brain Injury In Adolescents, Jacob Michael Eade

Theses and Dissertations

OBJECTIVE: The overarching purpose of this study was to investigate the influence of habitual caffeine consumption on mTBI outcomes in adolescents. BACKGROUND: Adolescents who suffer an mTBI have an increased risk for neurological impairment and symptomology. Thus, it is important to elucidate modifiable lifestyle factors that have the potential to influence injury outcomes and recovery. Caffeine is a legal psychoactive compound prevalent among the adolescent population. Marketed as an ergogenic aid caffeine coincides with recreational activities where incidence of mTBI is high. However, no human study has explored the influence of caffeine consumption on mTBI pathology. It was hypothesized that …