Digital Commons Network^™

Using A Multi-Direction Reaching Approach To Investigate Fitts’ Law And The Effect Of Attentional Focus On Motor Learning, Charles R. Smith

Theses and Dissertations

The Index of Difficulty value (ID) derived from Fitts’ Law’s speed-accuracy trade-off is commonly used to determine the difficulty of a targeted reaching movement and balance difficulty in sequence learning tasks. However, this value does not account for the mechanical difficulty of multi-directional movements which could affect both performance and learning. Where we direct our focus when completing a task/skill can also have an effect on how we perform and learn that task, however, the manner in which differing focus instructions affect learning a whole-arm reaching task is relatively unknown. The purpose of this dissertation was to examine 1) how …

Action Research Assessing The Perceptions Of Arabic Military Flight Students Using A Gamified Learning Intervention During Flight School Training, Matthew R. Middleton

Theses and Dissertations

The purpose of this action research was to evaluate flight students’ perceptions of a reward-based gamification intervention for their motivation to study outside the classroom while attending the Initial Entry Rotary Wing (IERW) flight school in the Kingdom of Saudi Arabia. Saudi Arabia has an ever-increasing population with a diverse number of teachers from all over the world teaching curricula not suited to Saudi Arabians; thus, the Kingdom is striving to improve its education system to motivate its students. The most popular way of enhancing the education system is by empowering and inspiring students to perform better. The Saudi Arabian …

Investigating The Impact Of Nonlinguistic Cognitive Reserve On Naming Pre- And Post-Treatment, Lillian Jarold

Theses and Dissertations

Background: The relationship between linguistic and nonlinguistic cognition in persons with aphasia is complex and often debated in the literature. Furthermore, the impact of nonlinguistic cognition on aphasia treatment outcomes is unclear. The present study sought 1) to examine the relationship between WAIS scores and performance on a test of naming and 2) to examine the relationship between WAIS scores and change scores on a test of naming between baseline and post-treatment in persons with chronic aphasia.

Method: This retrospective study utilized data from participants (N=102) who were recruited for a multi-center cross-over trial (POLAR: Predicting Outcomes of Language Rehabilitation). …

Hybrid Theory-Machine Learning Methods For The Prediction Of Afp Layup Quality, Christopher M. Sacco

Theses and Dissertations

The advanced manufacturing capabilities provided through the automated fiber placement (AFP) system has allowed for faster layup time and more consistent production across a number of different geometries. This contributes to the modern production of large composite structures and the widespread adaptation of composites in industry in general and aerospace in particular. However, the automation introduced in this process increases the difficulty of quality assurance efforts. Industry available tools for predicting layup quality are either limited in scope, or have extremely high computational overhead. With the advent of automated inspection systems, direct capture of semantic inspection data, and therefore complete …

Modified Em Algorithm In Smcure Package Based On Proportional Hazards Mixture Cure Model With Offset Terms, Jiaying Yi

Theses and Dissertations

Mixture cure model is a useful method of survival analysis for population including cured proportion and uncured proportion. The R package SMCURE applies EM algorithm to estimate the coefficients of covariates in the mixture cure model. Although an offset term is specified in the SMCURE statement, the offset term is not appropriately handled in the algorithm. This thesis aims to adjust the EM algorithm for the proportional hazards mixture cure model in the SMCURE package. In addition, the offset term can be specified separately in the incidence part or the latency part. The numerical experiments include simulation study and real …

Assessing The Impact Of Online Homework On 8th Grade Students’ Mathematical Proficiency And Perceptions: An Action Research Study, Chad Williams

Theses and Dissertations

This action research aimed to assess the impact of online homework, delivered via IXL, on thirteen 8th Grade Mathematics students' mathematical proficiency and explored their perceptions of its usefulness. The Cedar Hill Middle School students typically scored below state and national averages in mathematics, necessitating increased rigor and support. Two main questions guided the research in this study. The first question assessed the impact of online homework on students' mathematical proficiency according to the National Council of Teachers of Mathematics (NCTM) definition, looking specifically at strategic competence, conceptual understanding, procedural fluency, and adaptive reasoning. The second question investigated students' perceptions …

Boys, Reading, And Video Games: A Mixed-Methods Case Study Examining The Effects Of Using A Recreational Video Game To Improve Reading Comprehension Performance At An Elementary School In Texas, Donald Wayne Meyer Jr.

Theses and Dissertations

The fifth-grade boys at an elementary school in Texas consistently perform lower than girls on the State of Texas Assessments of Academic Readiness (STAAR) reading portion. The gender gap in reading is not exclusive to this school. Boys score lower than girls on state-administered reading assessments each year in the United States (U.S.) and have done so for decades (Bozack & Salvaggio, 2013; Clinton et al., 2014; Schwabe et al., 2015; Schwanenflugel & Knapp, 2018). This study explored the effects of using a recreational video game on fifth-grade boys struggling with reading comprehension in a six-week-long reading intervention program.

This …

A Performance Guide To Hyo-Geun Kim’S Art Pop For Korean Art Songs, Taeyoung Seon

Theses and Dissertations

This document contains information about instructions regarding singing with Korean diction for Korean Art songs by a gifted Korean composer, Kyo-geun Kim. He is now a Professor of Business at Ewha Women’s University in the Republic of Korea. The writer offers a brief biography of Kim as a composer and a scholar of music and business. This document will help anyone who would like to learn Korean diction for singing Korean Art Song, particularly, Hyo-geun’s Art Pop Art Songs such as Snow, A Thousand Winds, and What Though Life Conspires to Cheat You. The works are termed ART POP, it …

Small Molecule Activation By Dirhenium Carbonyl Complexes, Meenal Kaushal

Theses and Dissertations

The background of small molecule activation is discussed in Chapter 1. Carbon-hydrogen (C-H) bond activation and carbon-carbon (C-C) bond formation using transition metal complexes are explained using examples from the literature. It also includes the previous work done by Dr. Adams’ lab on C-H bond activation and zwitterions in metal carbonyl complexes.

The reaction of Re₂(CO)₈(µ-C₆H₅)(µ-H) with vinyl acetate yielding three new products has been discussed in Chapter 2. One of the products Re₃(CO)₁₃(µ-η² -C₂H₃), 2.3 further reacts with I₂ resulting in …

Where Are The Girls? Exploring Influences On Female Eighth Grade Public School Students’ Choices Of Technology Classes In Texas: A Mixed Method Action Research Study, Shasta Colon

Theses and Dissertations

There is a continuing trend of unrepresented female students in STEM classrooms, particularly in technology courses. There is a focus on the K-12 learning environment to increase the number of female STEM students, which will encourage a growth in participation for females in the STEM field (Sassler, Glass, Levitte, & Michelmore, 2017). The purpose of this study was to increase the number of females students who enroll in technology courses in a public school in Kether Independent School District (KISD). The participants were 66 eighth–grade female students who were enrolled in the College and Career Readiness (CCR) and Technology Applications …

Physical Activity And Stress Between American Students And Asian International Students At The University Of South Carolina, Hao Lei

Theses and Dissertations

Many college students are physically inactive and have high levels of stress, and this may be worse among increasing number of international students studying in the US. This study investigated the relationship between physical activity and stress among American students (n=92) and Asian international students (n=64). The Mann-Whitney test was used to compare MET minutes/week from the International Physical Activity Questionnaire short form between those two groups. The independent-samples t test compared the mean of stress from the Perceived Stress Scale between those two groups. Chi-square test was used to compare the percentage of Asian international students and American students …

Cnn-Based Semantic Segmentation With Shape Prior Knowledge, Yuhang Lu

Theses and Dissertations

Semantic segmentation that aims at grouping discrete pixels into connected regions is a fundamental step in many high-level computer vision tasks. In recent years, Convolutional Neural Networks (CNNs) have made breakthrough progresses in public semantic segmentation benchmarks. The ability of learning from large-scale labeled datasets empowers them to generalize to unseen images better than traditional nonlearning-based methods. Nevertheless, the heavy dependency on labeled data also limits their applications in tasks where high-quality ground truth segmentation masks are scarce or difficult to acquire. In this dissertation, we study the problem of alleviating the data dependency for CNN-based segmentation with a focus …

Networked Digital Predictive Control For Modular Dc-Dc Converters, Castulo Aaron De La O Pérez

Theses and Dissertations

The concept of power electronics building blocks (PEBB) has driven advancements in highly modularized converter systems with many identical subsystems. PEBBs are distributed subsets of converter systems and thus require communication with a control system for their coordination. For this type of system, the communication latency with hard deterministic deadlines is the driving attribute of communication system requirements. However, inherent communication requirements for PEBB-based converter systems also provide opportunities for coordination of energy flow.

Leveraging developments in Gigabit serial communication channels, a control and communication platform architecture for distributed control schemes based on the 2D-Torus communication network topology was developed …

Adapting North American Fiddle Bow Technique To The Double Bass, Spencer Jensen

Theses and Dissertations

Because of the pioneering work of Edgar Meyer in expanding the role of the double bass in American folk music, many bassists are inspired to engage with fiddle music in the way fiddlers do. Thus, bassists who perform in fiddle and string band traditions may seek greater artistic freedom and expression by shifting between a variety of accompanying textures to playing melody and improvised bowed solos.

In seeking to discover how bassists successfully adapt fiddle bowing techniques to the double bass, I have interviewed two bassists who are deeply involved in Americana music traditions, Paul Kowert and Ethan Jodziewicz. From …

Meaningful And Interactive Learning Experiences Provided Through A Learning Management System: An Action Research Study In Ninth Grade Advanced Placement Human Geography, Daniel Robert Plonski

Theses and Dissertations

The purpose of this mixed methods action research was to determine if increased interactive Schoology-based modules could alter learner perceptions concerning the lack of meaningful learning (learner-instructor, learner-learner, learner-content) in the culture unit of instruction in an Advanced Placement Human Geography (APHG) classroom. A series of instructional modules were facilitated through the learning management system (LMS) Schoology to students (n = 16) in APHG at a southeastern U.S. high school. The interactions were designed to enhance interaction based upon the criteria provided by Piaget’s (1981) social constructivist theory, specifically Moore and Kearsley’s (2011) systems approach and Miyazoe and Anderson’s (2010) …

Understanding The Unseen: Invisible Disabilities In The Workplace, Ann Abney, Veronica Denison, Chris Tanguay, Michelle Ganz

Faculty and Staff Publications

Approximately 61 million (or 1 in 4) adults in the United States have a disability. Despite this prevalence, many people cannot name a coworker who is disabled, possibly due to the number of people who have invisible disabilities. This lack of understanding of both causes and prevalence can cause both the disabled and their supervisors or managers to be unaware of how to address a disabled person’s needs. In this article, the authors shed light on how to improve the professional environment for disabled archivists, staff, and patrons. People without disabilities or those with unrealized disabilities can all benefit when …

Climate Change Compliance, Susan S. Kuo, Benjamin Means

Faculty Publications

Unless corporations prioritize climate change mitigation, efforts to control global warming will fail. Yet, the strategies that have been proposed for enlisting corporations are insufficient to the task. In our era of political polarization, a comprehensive “Green New Deal” to transition the U.S. economy away from fossil fuels is a nonstarter. Nor can we expect corporate risk management or social responsibility to fill the gap; there are practical limits to how far corporate managers can depart from strategies designed to maximize profits for investors.

This Article contends that climate change is a compliance issue. Scholars have overlooked compliance as a …

Molecular Theoretical Model For Lipid Bilayers: Adsorption Of Lipidated Proteins On Lipid Bilayers As A Function Of Bilayer Composition And Curvature, Shauna Celeste Kennard

Theses and Dissertations

Protein localization on biological membranes is motivated by either highly selective recognition of specific target membrane components or nonspecific attraction to general physical properties of the membrane, such as charge, lipid heterogeneity, and curvature. Here we discuss the interaction between lipidated proteins and lipid bilayer membranes from a comprehensive examination of how features of the membrane and its lipid constituents, including lipid composition, headgroup size, degree of tail saturation, tail length (bilayer thickness), and membrane geometry, affect the adsorption ability of the proteins. Of key importance is the strong interconnection among these compositional and morphological elements of the membrane in …

Differences In Aggression And Alcohol Use Among Youth With Varying Levels Of Victimization And Popularity Status, Sarah T. Malamut, Molly Dawes, Tessa A.M. Lansu, Yvonne Van Den Berg, Antonius H.N. Cillessen

Faculty Publications

Awareness that high-status adolescents can be targets of aggression has grown in recent years. However, questions remain about the associations of the confluence of victimization and popularity with adjustment. The current study fills this gap by examining the joint and unique effects of victimization and popularity on aggression and alcohol use. Participants were 804 Dutch adolescents (50.2% boys, M_age = 13.65) who were followed for one year. High-status victims were more aggressive and drank more alcohol than lower-status victims. High-status victims were also more proactively and indirectly aggressive and self-reported more bullying than high-status non-victims. Thus, the findings demonstrated …

Sports Nutrition- And Strength And Conditioning-Based Interventions To Bolster Health And Human Performance In Male And Female Tactical Personnel, Harry Paul Cintineo

Theses and Dissertations

Military and law enforcement personnel are required to possess sufficient physical and cognitive fitness to perform their official duties. Tactical athletes must have fast reaction times (RT), high levels of various aspects of muscular performance, including power, strength, and endurance, as well as high anaerobic and aerobic capacities. The purpose of this dissertation was to investigate acute sports nutrition and chronic strength and conditioning strategies to improve health and human performance in tactical athletes, including law enforcement officers, active-duty military service members, and Reserve Officers’ Training Corps (ROTC) cadets and midshipmen.

The first study tested the effects of a combination …

Pyridyl Bis-Urea Macrocycles As Supramolecular Synthons And The Design And Synthesis Of Small Molecule Pharmaceuticals Targeting Ly6k, Devan D. Buchanan

Theses and Dissertations

Assembled pyridyl bis-urea macrocycles have been utilized as 1D supramolecular synthons to construct hierarchical assemblies. These macrocycles have both urea and pyridyl functional groups and can form non-covalent interactions with hydrogen or halogen bond donors through symmetric, ditopic acceptor motifs. Bis-urea macrocycles offer interesting capabilities as synthons to organize donors into well-defined crystal structures. In part, this is due to the urea motifs’ propensity to assemble through hydrogen bonding. New, asymmetric pyridyl macrocycles were synthesized, crystallized, and experimentally probed to determine how symmetry affects their assembly and utility as supramolecular synthons.

The Uphadhyay group identified small molecules, including NSC11150, …

Measuring Orthographic Influences On Phonological Processing In Beginning Readers: An Eyetracking Study, Emily Grace Fisher

Theses and Dissertations

Purpose – Both orthographic and phonemic awareness are essential to reading. However, the role of orthographic knowledge in phonemic awareness has not been thoroughly investigated in beginning readers until recently. The purpose of this study was to examine if orthographic knowledge influenced phonological processing in beginning readers and to establish a proof of concept for the use of eyetracking measures to examine these skills in young children.

Method – 22 participants, aged 6-7 years, completed norm-referenced assessments of language and reading ability as well as experimental measures of orthographic and phonological awareness while their eye movements were monitored.

Results – …

Distributed Interdigital Capacitor (Idc) Sensing For Cable Insulation Aging And Degradation Detection, Md Nazmul Al Imran

Theses and Dissertations

Nuclear power plants (NPPs) contain myriad power, control, instrumentation, and other types of cables. The polymer insulation and jacket materials of such cables degrade over time due to operation and environmental conditions e.g., heat, humidity, and radiation. Since the life span of NPPs may extend beyond 40-50 years regular monitoring of cable insulation and jacket polymers is critical to ensure safe and reliable operation. The agingrelated degradation of cables causes changes in the relative permittivity or dielectric constant of the insulation and jacket materials. Capacitor sensors, if properly designed and developed can measure this change and thus can provide an …

Incremental, Spaced Repetition And Studymate Flashcards: The Impact On College Student Memorization Of Measurement Conversion Standards, Patricia A. Bromer

Theses and Dissertations

The purpose of this action research was to evaluate the impact of and student perception of incremental, spaced repetition of StudyMate electronic flashcard use on memorization of measurement conversion standards for an online Mathematics in Health Sciences course. Online college classes require more self-direction and usually do not allow for partner or group work. These characteristics of online classes may hinder students’ ability to memorize crucial information, increasing their cognitive load and leading to feelings of inadequacy. This mixed methods study assessed the impact of incremental, spaced repetition of StudyMate flashcard use on college math students’ memorization of measurement conversion …

Study Of Radiative Corrections In The Muon Scattering Experiment, Lin Li

Theses and Dissertations

The root-mean-square (rms) radius of the proton charge is a fundamental quantity. In 2010, the studies of muonic hydrogen with high precision found a notably smaller value than the one from earlier non-muonic measurements. This discrepancy has led to theoretical and experimental investigations. A missing measurement in determining the proton radius is muon scattering, a measurement that the MUon Scattering Experiment (MUSE) collaboration proposed at Paul Scherrer Institute (PSI). MUSE will measure elastic electron-proton and muon-proton scattering data with positively and negatively charged beams in a four-momentum-transfer square range from Q2 = 0.002 to 0.08 GeV² . Each of …

Null Hypothesis Statistical Testing: A Survey Of The History, Critiques, And Alternative Methodologies, Bradley David Rogers

Theses and Dissertations

Considered normative from the second half of the 20th century (Danziger, 1990), null hypothesis statistical testing (NHST) has received consistent, largely unheeded criticism. Critiques have received more attention in recent years with the recognition of the replication crisis in the social sciences and the American Statistical Society’s statement and special issue on p values (Wasserstein & Lazar, 2016; Wasserstein et al., 2019). This paper seeks to provide a framework for understanding the issue by looking at the history of NHST and investigating some alternatives to the methodology. A brief review of the history, spread, and critiques of NHST is provided …

Image-Based Crack Detection By Extracting Depth Of The Crack Using Machine Learning, Nishat Tabassum

Theses and Dissertations

Concrete structures have been a major aspect of social infrastructure since the ancient Roman times, so they have been used for many centuries. Concrete is used for the durability and support it provides to buildings and bridges. Assessing the state of these structures is important in preserving the longevity of structures and the safety of the public. Detecting cracks in their early stage allows repairs to be made without the need to replace the whole structure, so it reduces the cost. Traditional methods are slowly falling behind as technology advances and an increase in demand for a practical method of …

On Incorporating The Stochasticity Of Quantum Machine Learning Into Classical Models, Joseph Lindsay

Theses and Dissertations

While many of the most exciting quantum computing algorithms are currently impossible to be implemented until fault-tolerant quantum error correction is achieved, noisy intermediate-scale quantum (NISQ) devices allow for smaller scale applications that leverage the paradigm for speed-ups to be researched and realized. A currently popular application for these devices is quantum machine learning (QML). Recent works over the past few years indicate that QML algorithms can function just as well as their classical counterparts, and even outperform them in some cases. Many current QML models take advantage of variational quantum algorithm (VQA) circuits, given that their scale is typically …

Neighborhood Change On The Mississippi Coast After Hurricane Katrina (2006 – 2019), Margot Habets

Theses and Dissertations

Hurricane Katrina was a historic event, forever changing many lives as well as altering impacted communities in the short and long term. In the fifteen years since the storm, patterns of damage, recovery programs and dollars, and existing neighborhood change have altered demographics in coastal Mississippi. This thesis investigates how population, median age, race, and education demographics have changed at the census tract level in the fourteen years since Hurricane Katrina (2006-2019) compared to pre-Katrina trends (1990-2000). A moving average using American Community Survey data as well as interval changes measure how different neighborhoods have been altered since the storm. …

Healthy Aging Beyond Sex And Gender Binaries, Nicole M. Lampe

Theses and Dissertations

An estimated 2.7 million sexual and gender minority (SGM) adults 50+ reside in the United States (US) with this number projected to increase to more than 5 million by 2060 (Flatt et al. 2022; Fredriksen-Goldsen and Kim 2017). Medical research, education, and practice in the United States (US) often erase sex and gender variation, thus ignoring the experiences of older adults living beyond Western sex and gender binary systems (e.g., female/male and women/men), particularly transgender, non-binary, and/or intersex (TNBI) populations. Such erasure stems from TNBI older adult structural incompetency or the failure to understand how macro-level systems, institutions, and structures …