Digital Commons Network^™

Greenspace Across The United States: Exploring Equity And Associations With Physical Activity, Obesity, And Health-Related Quality Of Life, Ellen W. Stowe

Theses and Dissertations

Neighborhood greenspace is important for health and well-being but may not be equitably present in neighborhoods across the United States. Also, many adults are physically inactive, have obesity, and report poor health-related quality of life. Greenspace has been tied to these health conditions, but with mixed findings. The purpose of this study was to 1) use an environmental justice perspective to examine variations in 11 measures of greenspace by neighborhood race/ethnicity, income, and rurality in block groups across the contiguous United States and 2) examine 11 greenspace measures in connection to physical activity, obesity, and health-related quality of life in …

Orthographic Knowledge And Phonological Awareness In Children With Speech Sound Disorder, Anna Marie Ehrhorn

Theses and Dissertations

Speech sound disorder (SSD) puts children at risk for word reading difficulties but does not guarantee them. Research on early literacy skills in children with SSD has primarily focused on phonological awareness due to speech sound deficits associated with SSD. Researchers have begun to examine multiple factors beyond phonological awareness that may impact word reading and spelling development. Orthographic knowledge is another essential factor understudied in children with SSD. Previous research has shown that orthographic properties of words influence phonological awareness performance in skilled readers and children with reading difficulties. No known previous studies have examined whether orthography influences phonological …

Investigating Lack Of Black Students Enrolled In Advanced High School Classes: Choices And Vision, Diane Marie Vrobel

Theses and Dissertations

This action research study utilized a phenomenological qualitative design to examine reasons that eligible Black students use to not register with advance classes. This project investigated how a community of inquiry with adult participants identified and mitigated or removed barriers in a secondary education setting. This eleven-week study during the spring semester incorporated change theory while employing a community of inquiry. Qualitative data from student participants obtained from audio recordings of focus group interviews was transcribed and then shared with the community of inquiry. Adult participants then analyzed student participant data to pinpoint reasons students chose not to register. Next, …

Belonging In Context: An Exploration Of Sense Of Belonging Among College Students, Ladonna L. Gleason

Theses and Dissertations

Feeling a sense of belonging is essential to human health and functioning and has been well documented in the literature. However, questions of context remain. Research in belonging has focused on social aspects of belonging, leaving broader contextual frames unexplored. There has been little work in identifying and differentiating the contexts in which belonging is experienced or in developing an understanding of how the experience of belonging differs across contexts. Current belonging theory lacks this important contextual perspective that could inform the ways in which belonging is constructed and reconstructed through disruption. With the advent of the COVID-19 pandemic, new …

Gis Analysis Of Housing Delinquency After Repeated Flooding In Horry County, South Carolina, Andrew White

Theses and Dissertations

How communities react and change after disaster has been well-studied in recent decades. Knowledge around time scales, spatial scales, and specific facets of the built environment, such as housing recovery, have all developed largely around the opportunities that disasters have provided in understanding societal functions. This research has given policy makers and institutions insights into shortcomings of disaster specific recoveries, but these shortcomings are generalized beyond the scope of the originally studied areas. This thesis adapts this body of knowledge to a GIS methodology to help localize understanding to the coastal South Carolina context of Horry County. This low-lying area …

Embodied Participation In Digital Publics: Somnambulance, Surveillance, And The Construction Of Identity, Adam S. Padgett

Theses and Dissertations

In our current information landscape, routine surveillance has changed the nature of rhetorical engagement in public spheres. Scholarship in publics theory have done productive work to map out the complex field of discursive participation. Michael Warner has demonstrated how, through the circulation of common texts, people no longer have to be in public in order to participate in publics. However, in the wake of ubiquitous surveillance, this focus on publicness has offered little attention to privacy in publics theory. I argue that legal and postmodern theories of bodies-as-texts is problematic for reading and writing bodies online. Intersecting with embodiment and …

Impacts Of Preferential Vaporization Of Multi-Component Liquid Fuels On Near-Limit Combustion Behaviors, Seungjae Lim

Theses and Dissertations

Combustion technologies used in energy conversion devices involve multi-phase and multi-component combustion behaviors associated with chemical kinetic characteristics coupled with spray dynamics. For reliable engine operation, the engine operation envelope is necessarily required to be determined by near-limit combustion behaviors such as flame flashback, lean blowout, ignition, and extinction, which are influenced by both fuel chemical and physical properties. Liquid fuels are composed of a wide range of molecular structures and weights, therefore exhibiting relatively large distillation temperature range. When fuel chemical properties change during fuel vaporization, preferential vaporization effects could play a considerable role in near-limit combustion behaviors. In …

Gratitude Buffers The Effects Of Stressful Life Events On Early Adolescents’ Life Satisfaction And Externalizing Behaviors But Not Internalizing Behaviors, Mimi Scott Webb

Theses and Dissertations

Identifying psychological strengths that foster healthy development in youth has become a topic of exploration in the field of positive psychology (e.g., Suldo & Huebner, 2004; Valle et al., 2006). Gratitude is a promising trait-like characteristic with qualities indicative of a potential psychological strength that may serve as a protective factor for early adolescents in the face of stressful life events. This study utilized data from a sample of 1,880 middle school students from the Southeastern United States. Hierarchical regression analyses investigated gratitude’s role as a moderator in the relationship between stressful life events and adolescent well-being. Specifically, gratitude’s ability …

Applications Of Laser Liftoff Technique For Wide Bandgap Power And Flexible Electronics, Md Didarul Alam

Theses and Dissertations

Wide bandgap (WBG) AlGaN/GaN and ultrawide bandgap (UWBG) AlGaN/AlGaN III-nitride high electron mobility transistors (HEMTs) have come a long way since their initial demonstration and are desired for a multitude of applications in deep-scaled high-frequency, high-voltage, high-current, and high-temperature power electronics. Although AlGaN/GaN HEMTs have recently become state-of-the-art in consumer electronics chargers and amplifiers, the performance of the devices is limited by severe self-heating which significantly reduce their efficacy in demanding applications that require high-current density. One strategy to reduce this self-heating effect in GaN HEMTs is to use high thermal conductivity SiC or bulk AlN substrates. While this approach …

Search For Triple-Proton Decay Using Machine Learning With Cuore, Douglas Adams

Theses and Dissertations

A framework to search for a triple-proton decay of ¹³⁰Te in the CUORE detector against a background of muons is presented. We use machine learning to classify different kinds of energy depositing events. We use the classification information to improve our detection or non-detection limits of a triple-proton decay process. We derive and use a methodology of combining Poisson counting statistics with supervised classification machine learning tools. Additionally, a sensitivity calculation is provided which uses the classification counting likelihood. Using our analysis technique, we achieve an lower 2σ half-life bound of 7.43×10²⁴yrs for triple-proton decay of …

Tropical Cyclone And Ocean-Atmosphere Interactions In The Gulf Of Mexico, Emily Nichole Eley

Theses and Dissertations

The Gulf of Mexico (GoM) is historically a favorable region for the formation, maintenance and intensification of tropical cyclones that frequently evolve into powerful hurricanes. These natural disasters threaten the basin’s innate habitat and wildlife diversity, and the expansive coastal economies and communities. The dominant ocean circulation feature in the GoM is the Loop Current System (LCS) which includes the Loop Current (LC) and its associated mesoscale eddy field. The LC originates at the Yucatán Channel, loops anticyclonically into the basin, and ends at the Florida Straits; further it produces both anticyclonic and cyclonic eddies. The existence of the LCS …

A Hybrid Experimental-Computational Study: Prediction Of Flow Fields And Full-Field Pressure Distributions On Three-Tab Asphalt Roofing Shingles Subjected To Hurricane Velocity Winds, Troy A. Myers

Theses and Dissertations

A novel hybrid experimental-computational study is performed to predict the flow fields and pressure distributions on the measured shapes of flexible, three-tab asphalt roofing shingles undergoing increasing uplift when exposed to hurricane velocity winds. StereoDIC analysis is performed to measure the transient full-field deformed shapes of full-size three-tab asphalt shingles when subjected to hurricane velocity winds for two hours. Steady state computational fluid dynamics (CFD) simulations of the shingled roof facsimile-plenum region representative of the experiments are successfully performed. The simulations are performed to predict wind loading of the uplifted shingle shapes by utilizing the measured full-field three-dimensional uplifted shapes …

A Multiple-Case Study: Motivating Students With Disabilities In Personalized Literacy Instruction, Courtney Kozelski

Theses and Dissertations

Adolescents often experience a decline in motivation, yet support for basic psychological needs can prevent such a decline. Individuals with disabilities face particularly high motivational obstacles, placing them at the center of this action research study. This study took place within a special education classroom during one school year. The intervention unfolded over the course of the year, using personalized learning to support students’ basic psychological needs and provide sources of self-efficacy. The findings lend support to previous studies, indicating literacy motivation can be promoted through implementation of a needs-supportive personalized learning intervention that builds upon both self-efficacy and self-determination …

Cyclic Response And Liquidfaction Behavior Of Gravelly Soils, Pitak Ruttithivaphanich

Theses and Dissertations

Cyclic response and liquefaction behavior are soil mechanisms under earthquake conditions. The study of dynamic soil response is important to evaluate soil behaviors under dynamic loading for a wide range of strains. Soil liquefaction phenomena involving a significant reduction in the strength and stiffness of saturated cohesionless soils has caused catastrophic ground failure in numerous earthquakes. Liquefaction mostly occurs in sand, but liquefaction of gravelly soil has been observed. To date, only a few studies have focused on the liquefaction of gravelly soils; hence, research data is limited. This research aims to improve the understanding of cyclic response and liquefaction …

Cnn-Based Dendrite Core Detection From Microscopic Images Of Directionally Solidified Ni-Base Alloys, Xiaoguang Li

Theses and Dissertations

Dendrite core is the center point of the dendrite. The information of dendrite core is very helpful for material scientists to analyze the properties of materials. Therefore, detecting the dendrite core is a very important task in the material science field. Meanwhile, because of some special properties of the dendrites, this task is also very challenging. Different from the typical detection problems in the computer vision field, detecting the dendrite core aims to detect a single point location instead of the bounding-box. As a result, the existing regressing bounding-box based detection methods can not work well on this task because …

The Divine Consumptive: The Depiction Of Tuberculosis In Jane Eyre, Haley Highfield

Theses and Dissertations

Disease was a constant and unavoidable facet of life in British society during the Victorian Era. Despite the overwhelming prevalence of disease, the true cause of these illnesses remained mysterious until the turn of the century. With the origins of many of these diseases being either unknown or ascribed to mistaken sources, effective treatment was an impossibility. Tuberculosis is a prime example of this conundrum. Even with an estimated twenty-five percent of the British population dying from this particular disease during the nineteenth century, the actual provenance for infection was not discovered until 1882 with Robert Koch’s identification of the …

Perceived Sexual Intent: Power, Relationship Status, And Gender, Joseph Eric Padgett

Theses and Dissertations

Does lacking power cause people to think potential partners are less interested in engaging with them sexually? Do men and women perceive the interests of potential sex partners differently? Does the amount of sexual intent perceived by people who are in a romantic relationship differ from that of singles? Power has been shown to impact perceptions in other contexts, and the way people rate the attractiveness of potential mates is shown to differ depending upon their own relationship status. Similarly, gender differences are a central theme in discussions of sex related perceptions, preferences, and behaviors. In this study, I utilize …

The Effects Of Trauma And Statelessness On Refugee Employment Outcomes, Seth Hershberger

Theses and Dissertations

An empirical study, this paper examines the relationship of pre-resettlement refugee characteristics on their respective economic outcomes post-resettlement. In particular, it places special focus on the correlation that a refugee’s level of trauma and duration of statelessness, or time spent in a temporary country of asylum, have with that refugee’s real wages, probability of being employed at 180 days post-resettlement, and duration of initial unemployment in the country of final resettlement. Through the development of three sets of models, this paper finds a quadratic relationship between the length of a refugee’s statelessness and real wages post-resettlement, where increases in duration …

Exploring African American Girlhood Perceptions And Experiences Of Self Esteem, Monica Wade

Theses and Dissertations

Furthering the cultural competence of counselors around emotional wellness for minority groups, this research explored the intersectionality of race and gender through counter storytelling of experiences of Black girlhood that are often not told. To fill the existing gap in literature describing perceptions of emotional wellness, I explored African American adolescent girls perceptions and experiences of self esteem for girls who participated in an empowerment organization called Dream Girls. This qualitative study used a phenomenological analysis to gain understanding of the influences that impact the way these adolescents understand themselves.

“The Time Has Not Been Wasted”: The Accounting Diaries Of Marian Evans And Louisa May Alcott, Ashley A. Alvarado

Theses and Dissertations

In the nineteenth century, the Victorian desire for utility, respectability, and self-improvement became deeply ingrained in daily life, and consequently, the diary grew to be a popular tool to measure and evaluate time management and personal development. Accounting diaries, in particular, set out to provide a record of activity and achievement (or conversely, inactivity and failure). This thesis performs a case study of the accounting diaries of Marian Evans (George Eliot) and Louisa May Alcott, exploring how they document progress towards their personal goals of utility, morality, and productivity. Specific diary-writing techniques—such as an efficient style, income tracking, illness recording, …

Literature As A Monument: Uncle Tom’S Cabin Reflecting The Morality Of A Nation, Shalane Parcenue Conrads

Theses and Dissertations

This essay studies the critical response to Harriet Beecher Stowe’s novel Uncle Tom’s Cabin by studying the novel’s critical reception from publication and into contemporary America to understand how the novel remains an institution of Civil War remembrance. In accepting the polemical status of Uncle Tom’s Cabin, as both a literary and historical document, I argue that the novel is a monument in American culture. In studying the wide spectrum of critical response to the novel since its publication, Uncle Tom’s Cabin becomes a social barometer that reflects the controversial race relations in the United States from the Civil …

Investigating Bifactor Models And Fit Indices For Unidimensionality: An Illustration With Method Effects Due To Item Wording, Elizabeth A. Leighton

Theses and Dissertations

The use of unidimensional scales that contain both positively and negatively worded items is common in both the educational and psychological fields. However, dimensionality investigations of these instruments often lead to a rejection of the theorized unidimensional model in favor of multidimensional structures, leaving researchers at odds for how best to treat their data. One modeling technique that has gained attention in recent years related to item wording effects is the bifactor model, which specifies a general construct that explains the covariation among all items, and two method factors that explain additional covariation among items with similar wording.

Recent applications …

Towards Modeling Of Induction Welding Of Thermoplastic Laminates With A Mixed Finite Element Boundary Element Approach, Florentius Johannes Van Zanten

Theses and Dissertations

There is an increased interest in induction welding of carbon fiber reinforced thermoplastic composite laminates within the aerospace industry. Currently, optimal manufacturing process parameters (e.g., current, power, and frequency settings, coil movement speed, etc.) are determined through an experimental trial-and-error approach. To reduce the need for an experimental approach that can determine the manufacturing process parameters, which would be expensive in both time and money, accurate and computationally efficient numerical tools are desired. This research is focused on improving the existing numerical tool, WelDone, in regard to its speed and accuracy.

WelDone utilizes a hybrid element formulation that combines traditional …

The Binge Viewing Index: Creating And Testing A New Measure, Larry J. Webster Jr.

Theses and Dissertations

Television Binge Viewing is a media consumption behavior that is in its research infancy. To date, researches have used a dichotomous variable to measure binge viewing. That measure is based on operationalizing binge viewing as having watched two to six episodes of the same television program in one sitting. This research project created and applied a continuous measure by creating the Binge Viewing Index (BVI), which is based on the duration (number of episodes) and the frequency (weekly average) of binge viewing sessions. These dimensions are structured similarly to measures for binge drinking. A national survey demonstrated the intensity of …

Empirical Studies On Automated Software Testing Practices, Alireza Salahirad

Theses and Dissertations

Software testing is notoriously difficult and expensive, and improper testing carries economic, legal, and even environmental or medical risks. Research in software testing is critical to enabling the development of the robust software that our society relies upon. This dissertation aims to lower the cost of software testing without decreasing the quality by focusing on the use of automation. The dissertation consists of three empirical studies on aspects of software testing. Specifically, these three projects focus on (1) mapping the connections between research topics and the evolution of research topics in the field of software testing, (2) an assessment of …

Magnetic Field Directed Self-Assembly Of Colloidal Nanoparticles Via Extreme Field Gradients Of Magnetic Recording Media, Abdul Rahman Mohtasebzadeh

Theses and Dissertations

Magnetic nanoparticles have been extensively studied over the last half century and continue to sustain interest due to their potential use in different fields. This research explores Magnetic Field Directed Self-Assembly of magnetic nanoparticles using a magnetic disk drive. The magnetic fields generated by the bits in a magnetic disk drive have rapidly changing field gradients that can self-assemble magnetic nanoparticles into various shapes. We demonstrate the ability to record and read field gradients on a commercial disk drive medium and to use monodisperse iron oxide nanoparticles to achieve self-assembly. We use image analysis techniques to quantify parameters related to …

Cocreating A Strength-Based Behavioral Intervention Plan With Twice-Exceptional Students: A Youth Participatory Action Research Approach, Kristy L. Garrett

Theses and Dissertations

Twice-exceptional students are dually identified as academically gifted and talented and learning or medically disabled. These students face greater challenges to success in school and often have social and emotional issues that require accommodations and supports beyond those available in the general classroom. These students may not be receiving social and emotional supports through IEP or 504 Plans, or these supports may use a deficit rather than a strength-based approach. This study used a youth participatory action research method to empower twice-exceptional students to cocreate a strength-based, behavioral intervention plan to help them self-modulate strong emotional responses that hindered their …

Presentation Of Sjogren Syndrome As Nodular Pulmonary Amyloidosis, Harjinder Singh, Parth Patel, Sruthi Ramanan, Hazem Zebda, Devin Malik

Internal Medicine Articles

Sjogren syndrome is an autoimmune disorder that leads to dryness in the eyes and mouth. Nodular pulmonary amyloidosis is a localized amyloid deposition pathology commonly seen with monoclonal lymphoproliferative disorders. We present a patient who came in with dyspnea and was found to have nodular pulmonary amyloidosis on biopsy. Commonly associated lymphoproliferative pathologies were ruled out and on further workup, the patient was found to have Sjogren syndrome. This case demonstrates pulmonary nodular amyloidosis as a rare presentation of Sjogren syndrome in the setting of relatively well-controlled symptoms. Detection of pulmonary nodular amyloidosis should prompt evaluation of associated conditions such …

Finding Our Focus: Encouraging Deep Work Within An Academic Library, Roriebeth Fredrich, Amanda Hahn

Faculty Publications and Presentations

This presentation will discuss the application of principles from Cal Newport’s Deep Work within an academic library. An internal book club was the catalyst for individuals to experiment with different time management strategies and led to the implementation of a “Meeting-free Morning” for library faculty to cultivate deeper work.

The Kids Are Alright: A New Generation Of Educators

Faculty, Staff and Students Publications

Generational theory states that as a result of experiencing the same life-altering, world-wide events at key developmental ages, individuals of a given generation share unique perspectives, values, and traits compared to other generations as reported by Johnson and Romanello (