Digital Commons Network^™

Multisensory Phonics Instruction In Struggling Readers, Amanda M. Dixon

Theses and Dissertations

This paper describes a problem of practice that arose from a lack of consistent, systematic phonics instruction within a small rural school with a large percentage of students not mastering skills in a way that builds the needed foundation for reading. To address this problem, action research was conducted through a mixed methods approach to determine the impact of multisensory Orton-Gillingham based reading instruction on a small population of students’ phonetic development and how this specific type of instruction affected their attitudes about reading. In an attempt to collect quantitative data, this study was guided by two research questions: How …

Novel Structures And Thin Film Techniques For Reconfigurable Rf Technologies With Improved Signal Integrity, Jinqun Ge

Theses and Dissertations

Over the past several decades, wireless communications have been tremendously developed with multiple frequency bands, standards, and functions to provide more convenient communication services. Nowadays, commercial wireless devices, especially customer premises equipment, are required for smaller size, higher integration, and higher data rates to meet the ever-increasing demands of communications. The transceiver front ends inside these devices need to provide high-speed and high-quality communication services without a substantial increase in cost and size. Hence, the primary objective of this research is to develop a few miniaturized, multifunctional, and reconfigurable RF technologies and to provide several signal integrity and heat dissipation …

The Effects Of Inservice Science Teachers’ Self-Efficacy On Science Achievement Using The 5e Model Of Instruction., O'Tessa Nicole Pelham

Theses and Dissertations

Science achievement has been a major focus in our educational system. While several learning models effectively increase science achievement, the nation is still not progressing adequately. A gap in the literature shows the need to find the effects of teachers’ self-efficacy, specifically with in-service science teachers. A pretest-posttest, non-equivalent control group, quasi-experimental research design was used in Fall 2022 and Spring 2023 to find the effects of in-service science teachers’ self-efficacy on science achievement, using the 5E Instructional Model. The study included 38 in-service science teachers who rated items on the pretest/posttest STEBI-A. Teachers in the experimental group consisted of …

A Mixed Methods Study Of Faculty Perceptions And Self Assessments Of Constructivist Teaching Methods At A Regional University In The State Of Georgia, Santha Kumari Jetty

Theses and Dissertations

The study, "A Mixed Methods Study of Faculty Perceptions and Self-Assessments of Constructivist Teaching Methods at a Regional University in the State of Georgia” examined the self-assessments and perceptions of faculty at a regional university in the State of Georgia. The study followed a sequential mixed-methods study with three phases of the study, namely, a quantitative ‘descriptive’ phase, a qualitative ‘bounded case study’ phase, and a mixed-methods phase in a joint display table. The purpose of this sequential mixed methods study was to examine the understanding and implementation of constructivist teaching practices by faculty in their classrooms at a regional …

Preferences Of Adults With Turner Syndrome Regarding Disclosure Of Potential Neurodevelopmental And Psychiatric Features, Elizabeth Pancake

Theses and Dissertations

This study aimed to assess preferences of adults with Turner Syndrome (TS) regarding provider disclosure and discussion of potential neurodevelopmental or psychiatric features.

Fifty-six individuals with TS completed an online survey. Questions were asked about their TS diagnosis and provider involvement, neurodevelopmental and psychiatric diagnoses, and preferences concerning providers’ disclosure regarding these possible non-physical features.

Sixteen individuals reported a formal neurodevelopmental diagnosis. Furthermore, 46 respondents reported personal suspicion of ADHD, math difficulties, weaker non-verbal or visual-spatial skills, intellectual disability, or autism spectrum disorder. Thirty-five individuals had a formal diagnosis of at least one psychiatric condition. The preferred providers to initiate …

Effect Of Action Selection Demands On The Execution Of Goal-Directed Reaches, James Garrison Riedy

Theses and Dissertations

A well-studied model of cognitive motor function is the process of action selection. It is unclear how the planning demands of a reaching movement interact with the added complexity of s election. Therefore, this thesis investigated the effect of adding selection demands to the performance of skilled reaches in a virtual environment. Thirty young, healthy participants reached ipsilaterally or contralaterally with either their dominant (right hand) or non-dominant (left hand) under two conditions: execute only (EO) and action selection (AS). Selection accuracy was higher for the EO condition than the AS condition for both arms and both directions (left arm: …

Evaluating The Impact Of Personalized Professional Learning On Technology Integration In The Classroom, Angela Bishop Burgess

Theses and Dissertations

Classroom access to technology such as a computer or the Internet does not guarantee a high-level of integration of technology by the teacher or application by the student. Tools that could be used to increase student creation or personalized learning opportunities may instead be used by the teacher at lower levels of use that replace non-technological tools. The purpose of this action research was to implement and evaluate the impact of technology-focused personalized professional learning on participants’ use of and attitudes towards classroom technology. It attempted to show that modeling technology integration in professional learning opportunities for educators could have …

Quantized State Simulation Of Electrical Power Systems, Joseph Micah Hood

Theses and Dissertations

An alternative is proposed to the current state-of-the-art simulation methods for the transient simulation of electrical power systems. The proposed method combines the Latency Insertion Method (LIM), the Quantized Discrete Event Specification (QDEVS), and the Quantized State System (QSS) method of integration. Using LIM, the power system state equations are decoupled in a way that allows the formulation of the system into a QDEVS-compliant model, which can then be directly solved with various QSS integration techniques. This combination of methods is called the Quantized DEVS-LIM method, or simply, QDL. A key feature of QDL is the asynchronous updates of all …

Family Therapy, K-12 Public Education, And Discipline Risk: A Scoping Review And Relationship Analysis Multiple Manuscript Dissertation, Cara Melinda Thompson

Theses and Dissertations

This dissertation contains two studies that examine family therapy services within public schools related to behavioral or discipline concerns. Both studies stem from an ecological and family systems theoretical framework in examining relationships between the student, family, and school systems. The first study is a scoping review on family therapy within a school context related to a behavioral or discipline concern and provided by a clinical mental health counselor or family therapist. This scoping review summarized both empirical and conceptual literature by type and degree of school context, type of behavioral issue addressed, interventions, and outcomes measured or contributions. The …

Survival Models With Background Mortality, Shujie Chen

Theses and Dissertations

In this dissertation, we focus on studying three mixture cure models with background mortality. With the development of treatment, patients may be cured and suffer from other cause of death. The cure model with background mortality can measure the population cure which refers to the patients with comparable mortality with their counterpart in general population. Three types of survival models are investigated, including generalized odds rate (GOR) model, cure model with background mortality for right censoring and interval censoring, and extended illness death model via incorporating “cure” fraction. All methods are validated via comprehensive simulation studies and real data application. …

Coaching To Success: Moving From A Fixed Mindset To A Growth Mindset Through Positive Motivation, Shannon Dianna Ramirez

Theses and Dissertations

The purpose of this study was to explore my students’ belief perseverance and fixed mindset and help them shift toward self-determination and a growth mindset. Incorporating goal setting, positive intentions, and coachable techniques in my sixth-grade math class, I collected data through an observation journal, student artifacts, and pre and post assessments. I found that goal setting, positive intentions, and coaching techniques enabled students to shift from belief perseverance toward self-determination that will transfer into life outside of the classroom. My findings showed helping students move from a fixed mindset to one of growth is possible but takes time. Creating …

Evaluation Of A Radium-Thorium Disequilibrium Sediment Method Used To Model And Assess Porewater And Submarine Groundwater Exchange In The Coastal Marsh, Madeline R. Bodine

Theses and Dissertations

Ground, pore, and surface water exchange has been extensively studied in beach and near shore environments but has been long neglected in saltmarsh systems due to their complexity. Saltmarsh systems are of particular importance as they are the interface between fresh and saltwater. Saltmarshes impact carbon exchange, release and sequestration, and they process particulate matter. Understanding the characteristics of a marsh system such as the nutrient and particulate loads in conjunction with the flux of water exchange through the marsh provides a deeper understanding of these systems and can impact our understanding of the global water and carbon cycles, as …

Surface And Alloy Engineering Of Halide Perovskite (Cspbx3) Nanocrystals For Efficient And Stable Optoelectronics, Sakiru L. Abiodun

Theses and Dissertations

Organic and inorganic halide perovskite quantum dots (QDs) (in form of ABX₃, where A is organic cation e.g CH₃NH₃⁺ or inorganic cation e.g Cs⁺) have emerged as an intriguing alternative to the widely studied chalcogenide and pnictide QDs. Their excellent optoelectronic properties such as large absorption coefficient, high carrier mobility, wide color gamut, long electron-hole diffusion lengths, and tunable bandgap energy are largely responsible for their wide acceptability in various electronic devices. However, despite this enthusiasm, the problem of purification, long-term stability, lead toxicity and inadequate knowledge of their surface chemistry still …

The Impact Of Follower-Influencer Relationship Stages On Consumers’ Perceptions And Behavioral Intentions In The Context Of Influencer Marketing, Khalid Obaid Alharbi

Theses and Dissertations

This dissertation investigates the impacts of the relationship between social media influencers and followers on consumers trusting influencers, being inspired by them, and perceiving mutual benefits in this relationship, which could increase how consumers value and respond to influencers' endorsement. Using an online panel (N = 559), the survey results indicate a stronger relationship between an influencer and a follower increases the likelihood that the follower will view the influencer as trustworthy, draw inspiration from the influencer, and perceive that they share reciprocal benefits in this relationship. The trustworthiness and inspirational value of an influencer, as well as their …

Gluten Free Diet Ameliorates Si Enteropathy In Iga Deficient Mice, Ryan Albert William Ball

Theses and Dissertations

Secretory IgA is the most abundant antibody in the intestinal mucosal and functions as the first line of defense against pathogens and micro-organisms in the gut. Selective IgA deficiency is the most common form of antibody deficiency. Clinically, IgA deficient patients are largely asymptomatic, they are however at a higher risk of developing certain inflammatory conditions like Celiac disease; an SI-specific enteropathy triggered by exposure to dietary gluten. Interestingly, celiac patients are 10-15 times more likely to have an IgA deficiency. Recent studies have shown that IgA^-/- mice develop enteropathy specifically in the ileum. We confirmed this phenotype in …

Development And The Use Of A New Kinetically Limited Linear Driving Force Model For Diffusion-Based Adsorptive Separations, Sulaimon Adedayo Adegunju

Theses and Dissertations

A new kinetically limited linear driving force (KLLDF) model, in terms of a modified extended Langmuir (EL) isotherm, was developed. This KLLDF model augments the equilibrium driving force in the linear driving force (LDF) model in such a way that the equilibrium loading of each component in the LDF model depends on the actual, kinetically limited, loading of the other components in a gas mixture, not their partial pressures. In contrast, the LDF model assumes the presence of a slower diffusing adsorbate in a gas mixture affects the equilibrium of a faster diffusing adsorbate in a pore structure via its …

Examining Associations Between Social Needs And Mental Health Among Youth And Young Adults With Diabetes, Andrea Danielle Brown

Theses and Dissertations

Household food insecurity (HFI) disproportionally affects people with diabetes living in the United States and is more likely to occur in households with children and in minority race/ethnicity households. Food insecure people with youth-onset diabetes likely have increased risk for poor mental health due to dealing with stress and cost related to diabetes management, especially if facing additional health-related social needs that intersect with HFI. If left untreated, poor mental health among youth and young adults (YYA) with diabetes can lead to diabetes-related complications, increased health care costs, and mortality. Yet few studies have examined associations between HFI and mental …

Portrayals Of Roman Catholicism In North American Children’S And Adolescent Literature Following Vatican Ii, Kathleen Anna Carroll

Theses and Dissertations

While American children’s literature scholars have analyzed issues of Christianity broadly, and there are many considerations of Roman Catholicism within European children’s literature scholarship, there is a lack of scholarly discourse regarding Roman Catholicism within children’s literature published in the United States. This dissertation considers how North American children’s and adolescent literature approach the issues that preoccupied North American Roman Catholicism post-Vatican II as well as how such portrayals have impacted readers’ understanding of the faith during this vital period of transition within the Church. Chapter 1 focuses on the way young adult literature published in the early 1970s addressed …

Design Of A Tvsa Cycle For Co2 Removal From Spacecraft Cabins Using A Structured Adsorbent, Pravin Bosco Charles Antony Amalraj

Theses and Dissertations

Pressure Swing Adsorption (PSA) and Temperature Swing Adsorption (TSA) are some of the most used cyclic adsorption technologies that is used for separating gas components from its mixture. Carbon Dioxide Removal Assembly (CDRA) in the International Space Station (ISS) facilitates the continuous removal of CO2 by the cyclic adsorption process. The use of structured adsorbents has drawn attention due its several advantages over traditional beaded adsorbents. This work evaluates the role of different design variables on the effective thermal conductivity of a structured adsorbent bed for its possible application in a temperature swing adsorption (TVSA) process for space applications. The …

Cashing The Check Of Democracy The American Revolution And Citizenship In The Black Freedom Struggle 1960-1970, Zachary Earle Clary

Theses and Dissertations

Separated into three interconnected parts, this thesis first proposes a reconfiguration of the vocabulary that historians use when classifying the memory and legacy of the American Revolution in the twentieth century. From there, I offer a comparative analysis of the Black Freedom Struggle’s relationship to the Declaration of Independence and other components of the American Revolution to demonstrate that the Revolution, while useful as a rhetorical tool or a conceptual model, functioned primarily as a counterpoint to the twentieth-century quest for Black citizenship. In other words, the American Revolution was a formidable example of radical protest in the American past, …

When They See Us: The Lived Experiences Of Tenured Black Male Faculty At Research 1 Institutions, Quintavis Marquel Cureton

Theses and Dissertations

Numerous research studies have been conducted on the experiences of Black faculty, faculty of color, and Black female faculty in the academy. However, there is still a lack of knowledge about the lived experiences of Black male faculty, especially the lived experiences of tenured Black male faculty at Research 1 (R1) institutions. There remains a dearth of research that examines and amplifies voice to the experiences of tenured Black male faculty. It is essential to understand how Black male faculty have navigated their way through earning the rank of tenure at an R1 institution. This research provides a roadmap for …

Detecting Spatially Varying Coefficient Effects With Conditional Autoregressive Models: A Simulation Study Using Social Determinants Of Health Screening Data, Reid J. Demass

Theses and Dissertations

Generalized linear models which include spatially varying coefficient terms allow researchers to determine if the association between predictor and outcome variables vary across geographic space. Such models are particularly applicable to research with public health data where interventions and limited health care resources must be allocated carefully. The integrated nested Laplace approximation (INLA) methodology available in the R INLA package is a popular tool to estimate spatially varying coefficients. To assess the performance of the estimation procedure, patient emergency department (ED) visits were simulated from data sourced from a pilot study at Prisma Health. The INLA technique was used to …

After Erasure: Contingency And The Persistence Of Subjectivity, Nathan Deprospo

Theses and Dissertations

My dissertation examines the relationship between contemporary posthumanist discourse in rhetoric and composition and the Hegelian dialectic. My basic premise is that the ethical and philosophical aspirations of posthumanist discourse—embrace otherness, improve social relations, foster inclusivity—are undercut by a persistent conservatism and destructiveness that runs throughout the social body. This is a Hegelian point: one should not treat social ills, such as racism, sexism, or classism, as merely unfortunate, cosmetic side effects of social organizations, but rather as fundamental human tendencies. For Hegel, there is a tendency towards exclusion, towards negating otherness, that is inherent in human subjectivity, and which …

On The Algebraic And Geometric Multiplicity Of Zero As A Hypergraph Eigenvalue, Grant Ian Fickes

Theses and Dissertations

We consider the algebraic and geometric multiplicity of hypergraph eigenvalues, paying particular attention to nullities of hypertrees. Conjecture surrounds the relationship between these two multiplicites, but little work appears in the literature on this topic. Predominantly, we are interested in identifying the geometric structure of the nullvariety of certain hypergraph classes by listing the irreducible components and their accompanying dimensions. When applicable, we use this description to verify a conjecture relating the algebraic and geometric nullity. Furthermore, we refine these geometric structure tools to graph theoretic trees, defining a matroid on trees and relating skew zero forcing to the existence …

The Role Of Religious Coping Resources As Resilience Factors In The Relationship Between Stress And Health-Related Quality Of Life Among Black Americans, Sarah Grace Frary

Theses and Dissertations

Black Americans face health disparities due to a number of systemic barriers across individual, relational, environmental, structural and superstructural levels, and these barriers increase their likelihood of chronic illness and premature mortality. Addressing these disparities is urgently needed. Addressing health promotion through culturally relevant interventions has been shown to be more effective, and one target for health promotion is Health-Related Quality of Life (HRQoL), a multidimensional health indicator that aligns well with many Black Americans’ understandings of health. HRQoL is negatively related to chronic stress. This study aimed to identify factors for effective coping with chronic stress that are culturally …

“Oh My God, Everyone Was Staring At Us”: The Experiences Of Transracial Fostering From The Perspective Of White Foster Parents Raising Black Youth, Christian Holmes Gorchow

Theses and Dissertations

Racial-ethnic identity is an essential component of a Black child’s development. Little is known about how transracial foster parents support Black foster children’s racial-ethnic identity development. The purpose of this dissertation was to address this gap by: (1) exploring transracial foster parents’ racial socialization practices as it relates to the care of Black foster children, (2) understanding transracial foster parents’ experiences with addressing racism and racial bias directed towards Black foster children, and (3) exploring transracial foster parents’ knowledge as it relates to the cultural needs of Black foster children. Using a thematic analytic approach, a sample of 8 White …

Aortopathies: Mechanism Of Pathogenesis And Therapy, Mengistu G. Gebere

Theses and Dissertations

The aorta is the largest artery in the body which is directly connected to the left ventricle of the heart and functions as an elastic conduit that transports the ejected blood from the left ventricle to peripheral vessels. There are three layers to the aortic wall, tunica intima, tunica media, and tunica adventitia. The tunica media, the thickest middle layer, is composed of vascular smooth muscle cells (SMC) and the extracellular matrix (ECM) as its essential components. SMCs are circumferentially arranged and embedded in elastic lamellae. They are responsible for producing and maintaining/remodeling the extracellular matrix of the aortic media. …

Sex Differentials In Frailty In Medieval Ireland, Allison Claire Ham

Theses and Dissertations

Population sex differentials in morbidity and mortality are influenced by genetic, hormonal, behavioral, and environmental mechanisms, and in the majority of living human populations, females experience longer lifespans and lower mortality risks, but paradoxically, greater morbidities compared to males. This dissertation project explored sex differentials in frailty (i.e., relative risk of death compared to others in the population) in medieval Ireland to address the existing temporal and contextual limitations for interpreting how far back the modern female health-mortality paradox extends. The project had three main objectives: examine sex differentials in mortality risks between the early (500-1100 CE) and late medieval …

Communicative Kissing With Alien Poetry: New Muses In Neil Gaiman’S “How To Talk To Girls At Parties”, Leanna Ashley Herbert

Theses and Dissertations

The representation of women in the fiction of Neil Gaiman is a topic that seems to obsess scholars, critics, fans, and (likely) the author himself. It is imperative that closer scholarly attention be paid to the figure of the muse, a figure defined in contemporary culture by her representability, as she appears across Gaiman’s works. This thesis traces the evolution of m/Muses or muse-like figures in the fiction of Neil Gaiman, arguing that the short story “How to Talk to Girls at Parties” imagines an empowering evolution for those who are objectified or silenced by the assumption that they are …

Bayesian Dependence Structure Analysis For Ordinal Data, Yang He

Theses and Dissertations

This dissertation explores different methods to study the dependence structure among many ordinal variables under the Bayesian framework.

Chapter 1 introduces ordinal data analysis methods, and the related literature works are briefly reviewed. An outline of the dissertation is put forward.

In Chapter 2, Gaussian copula graphical models with different priors of graphical Lasso, adaptive graphical Lasso, and spike-and-slab Lasso on the precision matrix are assessed and compared. The proposed models are well illustrated via simulations and a real ordinal survey data analysis.

In Chapter 3, adaptive spike-and-slab Lasso prior is proposed as an extension of Chapter 2. The developed …