Digital Commons Network^™

Meditations On Modern America: The Ambiguous Worldview Of Transcendental Meditation, 1967-1979, Grant William Wong

Theses and Dissertations

Transcendental Meditation [TM], a form of silent mantra meditation pioneered by the Indian holy man Maharishi Mahesh Yogi in 1957, took the United States by storm as over two million Americans learned its meditative technique between 1968 and 1978. At once a spiritual movement and a lifestyle, TM was a countercultural movement that went mainstream. I argue that TM was appealing because of its ambiguity and consequent malleability, as its teachings and practice came to reflect the aspirations and anxieties of its followers. By tracing their varying interpretations of the practice across periodicals, movement literature, memoirs, and contemporary scholarship, I …

Harnessing Surrogate Modeling And Machine Learning For Management Of Water Resources And Environmental Systems, Mahdi Erfani

Theses and Dissertations

In a world characterized by increasing and more frequent climate extreme events, population growth, and limited opportunities for infrastructural expansion, the imperative for more efficient and resilient planning, design, and operation of water resources and environmental systems has never been more apparent. Moreover, the emergence of high-dimensional data and the demand for quick and informed decision-making have created a critical challenge for the operation and management of these systems. To address these issues effectively, the ability to rapidly grasp and accelerate the analysis of this data is paramount, and this necessitates the innovative use of machine learning and surrogate modeling …

Evaluation Of The Dynamic Response Of Gravelly Soil Under Different Drainage Conditions, Pressley Margaret Perry

Theses and Dissertations

Throughout history in the field of geotechnical earthquake engineering, there have been numerous experimental investigations on the dynamic behavior of soils. Many of these efforts have been focused on sand and silty sand material due to their susceptibility to liquefaction phenomena. However, gravelly soil material (i.e., soil in which gradation contains primarily gravel and sand) has exhibited this phenomenon in response to earthquake loading in many case histories. Therefore, it is important to extend the experimental assessment of gravelly soil material to develop a better understanding of the cyclic response and to support the development of numerical models. This study …

Polybenzimidazole Membranes For Electrochemical Applications With Harsh Operating Conditions, Kris Likit-Anurak

Theses and Dissertations

Polybenzimidazole (PBI) membranes are high temperature proton exchange membranes (PEMs) which have advantages such as being able to operate in high temperatures, strong acid environments, and have no need for external humidity during operation. PBI membranes have been demonstrated to work effectively in multiple electrochemical devices, including fuel cells, hydrogen separation pumps, redox flow batteries, and a hybrid sulfur electrolyzer. In this work, para-PBI and densified para-PBI membrane have been used to improve electrochemical performance in harsh operating conditions that are both high temperature (≥120 ̊C) and high acid concentration (≥ 5M). First, we demonstrated the use of para-PBI membranes …

Beyond The Acronym Of Stem: Experiential Learning Professional Development For Integrative Stem Education, Christine Mitchell

Theses and Dissertations

STEM education and integrative STEM education are increasingly popular in the K-12 domain. However, there is not a consensus on their definitions, nor a sufficient amount of instructional support to help teachers that are unfamiliar with these learning approaches. This study examined how an intentionally designed experiential professional development model impacted the application of integrative STEM practices and teachers’ perceptions of this student-centered approach. A qualitative approach allowed for an integration of various perspectives over multiple cycles of professional development, reflection, and application. Data was collected from a focus group discussion, pre- and post- classroom observations, teacher reflection journals, and …

Probabilistic Cable Aging Diagnosis And Prognosis With Reflectometry And Capacitance Methods, Xuan Wang

Theses and Dissertations

Safe and reliable operation of power plants and power transmission are critical to economy and society. Cables in power generation and transmission are subject to various thermal, chemical, and mechanical stresses, which generally lead to aging and degradation of cable insulation. It is reported that some cables with a projected lifetime of 40 years need to be replaced in 10-15 years. Poorly maintained aged cables can adversely affect power delivery and lead to catastrophic events, such as blackout, fires, and loss of lives. The current research on cable is mainly focused on the detection and localization of hard faults, which …

Pursuing Culturally Responsive Math Teaching By Secondary Math Educators: A Professional Development Action Research Study, Emily Bell Redding

Theses and Dissertations

This action research study examines the use of professional development to build the self-efficacy of secondary math teachers in culturally responsive mathematics teaching (CRMT), with the hope to address achievement gaps of Black and Hispanic students. Seven math teachers from a school division in Southwest Virginia participated in a 9-week professional development that included virtual meetings to learn about CRMT, collaboration with colleagues, classroom applications, and self-reflection. Quantitative and qualitative data were collected throughout the 9 weeks in the forms of questionnaires, meeting transcripts, and reflection journals. The research study results found the professional development to build teacher self-efficacy, especially …

Exploring Cross-Border Business Model Adaptation, Kurt Norder

Theses and Dissertations

A business model is defined as the way a firm organizes its available resources to deliver and capture value. It can be simplified using the RCOV framework which splits the model into resources and competences, organization, and value propositions. However, the interactive nature of the components still creates internal complexity that must be managed without undermining the competitive advantage. This internal system is also subject to a multiplicity of contextual pressures, particularly as it crosses national borders. A cross-border business model has at least one of its components in multiple country environments, thus it faces variation in economic, competitive, technological, …

Replenishment Of Essential Natural Resources: An Assessment Of The Ability Of Freshwater Algae To Enhance Crop Quality And Soil Health, Lala Christina Ek

Theses and Dissertations

Disregard for soil, an essential natural resource, hinders global food production. Food insecurity is a major concern for both public health officials and environmental scientists due to soil quality decline, pollution, and climate change. Alternatives or targeted additions to chemical fertilizers can bolster soil quality, improve crop yields, lengthen crop shelf life, and mitigate environmental pollution. One potential alternative to chemical fertilizers is replacement of them with biological soil amendments, including algae, to enhance crop growth and improve soil health. Research was conducted at the University of South Carolina-Columbia campus garden to determine impacts of non-toxic freshwater algae on crop …

Structure V-1: A Mississippian Mica Workshop In Kershaw County, South Carolina, John Mclellan Dodge

Theses and Dissertations

This thesis reanalyzes the pottery assemblage of Structure V-1 at the Mulberry site (38KE12). Because Structure V-1 was originally hypothesized to be evidence of a late seventeenth century occupation at the Mulberry site, the framework I use for this research focuses on identifying evidence of community coalescence after Mulberry’s initial occupation ended. However, new evidence from both the pottery and radiocarbon analysis conclusively dates the structure to around the sixteenth century Mulberry I phase. With that new date in mind, I explore the role mica craft production within Structure V-1 might have had in linking the community at Mulberry to …

The Effect Of Model Size On The Root Mean Square Error Of Approximation (Rmsea): The Nonnormal Case, Yunhang Yin

Theses and Dissertations

This study aimed to understand the effect of model size on the Root Mean Square Error of Approximation (RMSEA) under nonnormal data. We considered three methods for computing the sample RMSEA and the associated confidence intervals (i.e., the normal theory method [Browne & Cudeck, 1993], the BSL method [Brosseau-Liard, Savalei & Li, 2012], and the Lai method [Lai, 2020]). The performance of the three methods was compared across various model sizes, sample sizes, levels of misspecification, and levels of nonnormality. Results indicated that the normal theory RMSEA should not be used under nonnormal data unless the model size is very …

Representaciones De La Violencia En El Cuerpo Femenino En María, Llena Eres De Gracia, El Despertar De Las Hormigas Y Cuando Las Flores Hablan, Catalina Lancheros Villa

Theses and Dissertations

ABSTRACTO Son muchas las mujeres que han aportado a la historia y a las luchas contra la violencia de género. Mujeres que han sido registradas en libros, documentales o películas y marcadas en hechos como heroínas del cambio y la transformación social (ej. Policarpa Salavarrieta Ríos / colombiana, Magdalena Carmen Frida Kahlo Calderón / mexicana, Manuela Sáenz/ ecuatoriana). Son estas mujeres fuertes y empoderadas las que han querido un mundo igualitario para todos desde la antigüedad hasta los tiempos modernos. Desde su capacidad intelectual descubrieron que podían mejorar las condiciones de vida, dejando un legado de transformación en un sistema …

Field And Laboratory Characterization Of Subgrade Resilient Modulus For The Aashtoware Pavement Me, Kazi Moninul Islam

Theses and Dissertations

The new Mechanistic-Empirical Pavement Design Guide (MEPDG) uses the subgrade resilient modulus (MR) as the key input parameter to represent the subgrade soil behavior for pavement design. This research focused on field and laboratory characterization of subgrade resilient modulus assessing the effects of predicted distresses and IRI on the flexible pavement. The results of this study are presented in the form of three chapters and peer-reviewed journal manuscripts. Firstly (Chapter 3), MR was obtained indirectly from Falling Weight Deflectometer (FWD) data using a back-calculation tool (i.e., SCDOT, BAKFAA, and AASHTOWare 2017) or from empirical correlations with soil index properties. MR …

Investigation, Synthesis And Rational Design Of Novel Transuranic Containing Extended Structures, Adrian Thomas Hines

Theses and Dissertations

The use of nuclear technology has proven useful for energy generation and for weapons manufacturing, but disposal and storage of nuclear waste is an ongoing problem. The accumulation of nuclear waste over the past decades has yielded a vast amount of waste that must be dealt with, and with space at interim storage facilities diminishing, it has become increasingly important to find solutions to nuclear waste storage. The vitrification process has been widely accepted as a viable route for immobilization of high-level waste; however, the process is inadequate for complex waste streams and has many drawbacks such as limited waste …

Dietary Inflammatory Index During Pregnancy And Changes Over Time: Associations With Post-Partum Sleep Duration And Quality And Depressive Symptoms., Nowrin Tamanna

Theses and Dissertations

STUDY OBJECTIVES: Sleep and mental health are two important factors for a new mother, as adequate sleep and a healthy mind help her prioritize self-care, seek support when needed, and create a nurturing environment for both her and her baby. Among various plausible theories exploring the etiology of sleep disturbances and depression, the concept of inflammation is gaining attention. This study examined the hypothesis that more pro-inflammatory diets during pregnancy are associated with a decrease in sleep quality and duration, abnormal sleep timing and higher Edinburg Postnatal depression score (EPDS) scores 6 months and 12 months post-partum.

METHODS: A secondary …

Educative Curricular Supports Used To Improve High Cognitive Demand Task Implementation In High-Dosage Mathematics Tutorial, Halley Bowman

Theses and Dissertations

This study used a holistic case study to explore obstacles tutors faced when implementing high cognitive demand (HCD) tasks and the possibility of using embedded educative curricular supports to overcome them. Much prior research has explored using educative supports in classrooms with teachers (Davis et al., 2017), but more research is needed on using educative supports in tutorial. Similarly, prior research has shown that HCD tasks lead to significant mathematical learning but are challenging to facilitate (Stein et al., 1996). Little research explores the use of HCD tasks in tutorials. This study used the theoretical framework that educators and curricular …

Heterogeneous Catalyst Design For Biomass Conversion, Dia Sahsah

Theses and Dissertations

Catalytic upgrading of bio-based feedstocks to commodity chemicals and fuels is pivotal to a more sustainable, renewable, and environmentally benign chemical economy. However, due to the high oxygen content, high water solubility, excessive reactivity, and thermal instability, typical and well-developed catalytic material and reactor processes reliably utilized in conventional petrochemical industry are, in general, not suitable for the processing of biomass feedstocks. Therefore, the development of novel heterogeneous catalysts is necessary in order to design new high-performance catalytic reactor systems. However, rational catalyst design is a multifaceted problem, and a myriad of factors influencing the catalytic performance at the reactor …

Piloting Brief, Just-In-Time Training Videos For Mentors: Expanding And Strengthening Motivational Interviewing For Youth, Mackenzie J. Hart

Theses and Dissertations

Having paraprofessional providers, such as youth mentors, deliver evidence-based services, has been posited to increase the reach of youth services given the affordability and ubiquity of mentors in school settings. Further, examinations of mentor-delivered Motivational Interviewing (MI) have shown promise in increasing youth mentees’ academic performance and wellbeing. Yet, traditional methods used for training mentors to use MI effectively and sustainably can be costly and time-consuming processes. Previous work has suggested the value of asynchronous, brief, just-in-time trainings (JITTs) to help offset these challenges; however, MI JITTs for mentors have not yet been formally evaluated. As such, the present study …

The Unsung Heroes For Intercollegiate Athletics: Examining The Dialogic Principles Of Communication In Community College Athletic Departments, Matthew Alan Stilwell

Theses and Dissertations

The purpose of this study was to explore community college athletic departments and how they connect and facilitate messages to their stakeholders. With limited resources, it’s important to understand how the athletic departments are applying best strategies and principles of relational management. Therefore, the goal and importance of this project was to explore how a mass communication tool in Twitter and how it is used in community college athletics, an area that is not a focal point in either collegiate athletics or sport communication scholarship. Using Kent and Taylor’s (1998) dialogic principles of communication as a guide for this project, …

Where The Constitution Is Silent: Indigenous Rights Jurisprudence In The United States, Anthony Wayne Hobert Jr.

Theses and Dissertations

My dissertation examines the citation of a pair of contradictory Supreme Court decisions penned by Chief Justice John Marshall—Johnson v. McIntosh (1823) and Worcester v. Georgia (1832)—to answer questions in three distinct realms. First, it answers whether and to what degree the Doctrine of Discovery, as presented by Marshall in Johnson, is fundamentally Lockean. Second, it answers the question of whether the Court acts as a majoritarian institution with regards to its indigenous jurisprudence. Third, it answers questions regarding strategic behavior in the American judicial hierarchy, focusing on the precedents’ citation in lower federal courts, state supreme courts, and tribal …

Understanding The Role Of The Jet Streams And Gulf Stream Eddies On The Northwest Atlantic Marine Heatwaves, Lydia Rose Duncan Sims

Theses and Dissertations

The Northwest (NW) Atlantic is one of the fastest warming regions in the global ocean and in the recent decade has experienced several extreme temperature events. These extreme anomalous temperature events are known as Marine Heatwaves (MHWs), which are forced by a variety of physical processes that affect the heat source and sink of the water column. These MHWs have been increasing globally in duration and frequency due to anthropogenic warming, and have increased ecological damage seen in mass mortality events of economically viable species. Within the NW Atlantic, several key processes encourage the formation of MHWs, such as the …

Creative Insights On The Commissioning, Analysis, And Performance Of Four New Works For Saxophone, Andrew Joseph Hutchens

Theses and Dissertations

This document explores, in detail, four works for saxophone, which the author commissioned. These pieces were performed on the author’s degree recitals prior to the writing of this document. The selected works are At the Seams by Baljinder Singh Sekhon II, Intrepid by Russell Wharton, Unity Synonym by Michael Laurello, and Third Rail / Revelation by Stephen Karukas. This document focuses on the commissioning process, musical performance, and theoretical aspects of these four pieces. Interviews were conducted virtually via Zoom and then transcribed for inclusion in this document. There have been no previous studies that have explored these four works. …

The Use Of Project-Based Learning To Scaffold Student Social And Emotional Learning Skill Development, Science Identity, And Science Self-Efficacy, Michelle Sutton Spigner

Theses and Dissertations

Project-based learning (PBL) offers an ideal approach for cultivating a robust STEM workforce, empowering students to actively construct their knowledge. This process has the potential to enhance science identity and self-efficacy. Furthermore, because PBL is inherently collaborative, it fosters the development of 21st-century skills, many of which align with social and emotional learning (SEL). While past studies have explored the relationship between PBL, SEL, science identity, and self-efficacy, there is a research gap in examining all three variables collectively within a high school context. Thus, this mixed-methods action research study aimed to determine if the implementation of a PBL unit, …

Progressive Neurochemical, Neuroinflammatory And Cognitive Deficits In An Experimental Model Of Gulf War Illness, Hannah Elizabeth Burzynski

Theses and Dissertations

Gulf War Illness (GWI) is a multi-symptom illness that presents with cognitive disturbances and immune dysregulation and continues to affect over 25% of Gulf War veterans. While soldiers were exposed to several hazards in the Gulf, the prophylactic use of the acetylcholinesterase inhibitor, pyridostigmine bromide (PB) and war-related stress have been identified as chief factors in GWI pathology. As both PB and stress alter acetylcholine (ACh), a critical mediator of cognition and inflammation, the focus of my dissertation work was investigating the lasting effects of PB and stress on peripheral and central cholinergic signaling. Specifically, I assessed hippocampal-dependent learning and …

Floodplain And In-Channel Sedimentation In The Bedrock Congaree River, Sc, Mahsa Ahmadpoor

Theses and Dissertations

The Congaree River planform is characterized by an abrupt increase in channel sinuosity in the downstream direction. Such a change is not typical of alluvial meandering rivers but has been observed in mixed bedrock-alluvial rivers. This motivated the first study of this dissertation, specifically designed to determine if the Congaree River is indeed a mixed bedrock-alluvial river in its low sinuosity (upstream) reach. To test this hypothesis, sonar-based measurements of channel bed and sublayer elevation were performed from Columbia to the Congaree River-Wateree River confluence. The sublayer is here defined as the first surface visible in the sonar measurements underneath …

Investigation Of Discrepancies In South Carolina Traffic Collision Forms, Jackson Wegmet

Theses and Dissertations

The aim of this thesis is to improve the accuracy of information recorded in the South Carolina traffic collision forms. To accomplish this, it examines 200 forms containing information about fatal crashes in work zones between 2014 and 2020 to determine how many discrepancies exist between the written narrative and other fields. In addition to obtaining these statistics, this thesis seeks to identify factors that influence discrepancies. To test the hypothesis that crash complexity and weather influence the investigating officer’s level of processing (a theory developed by Craik and Lockhart in 1972), and consequentially his/her ability to complete the traffic …

Broken Bottles: Understanding The Relationship Between Alcohol Outlet Availability And The Proximity To Alcohol Outlets With Binge Drinking Behaviors In College Fraternity Men At Southeastern Public Universities, Jarod Alan Holt

Theses and Dissertations

Alcohol use among fraternity affiliated men presents a concerning trend with harmful consequences (DeSimone, 2009; Hingson et al., 2017; McCreary et al., 2021; Nuwer, 2001; Patrick et al., 2022; Ranker & Lipson, 2022). The availability theory of alcohol-related problems suggests alcohol use could be influenced based on the availability and proximity of alcohol outlets in the environment (Dimova, 2023; Kypri et al., 2008; Scribner et al., 2008; Single, 1984; Weitzmann et al., 2003). However, no existing studies of fraternity-affiliated students have examined the relationship of binge drinking and access to alcohol through alcohol outlet availability or proximity. This study examined …

Critical Literacy And Student Engagement: Disrupting The Canon In The Secondary English Classroom, Katherine Burdick Ramp

Theses and Dissertations

Canonical literature is typically featured on the required texts list of secondary English classes while culturally relevant literature is frequently eschewed. Students struggle to understand and connect with the canonical literature as there are limited cultural connections that are relevant to their lives. As a result of this lack of culturally relevant literature in modern English curriculums, there has been a decrease in student engagement. The purpose of this study was to determine whether students’ engagement and their academic performance increased through the inclusion of these culturally relevant texts. Two research questions guided this study: (1) What effect does the …

The Impact Of Ability Grouping On Academic Achievement In Elementary Reading, Kristi Bissell

Theses and Dissertations

ABSTRACT This action research study describes the impact of ability grouping on fifth-grade students’ academic achievement in reading. The theoretical framework that supported this study is embedded in cooperative learning, social learning, and social interdependence. This study used a mixed methods design to consider the following research questions: “How does ability grouping impact students’ academic achievement in reading in a fifth-grade classroom?” The study also examined the impact that reading had on students’ confidence through a second research question: “What is the impact of ability grouping as it relates to students’ reading confidence?” A third research question was examined to …

Recovering Lost Exposure From The Majorana Demonstrator And Testing Data Selection Assumptions, Thomas Lannen

Theses and Dissertations

The Majorana Demonstrator recently concluded its search for neutrinoless double beta decay using an array of up to 40.4kg of germanium detectors, 27kg of which were enriched in ⁷⁶Ge and housed inside a copper and lead compact shield located at the 4850 foot level in a clean room in the Davis Campus of the Sanford Underground Research Facility (SURF) in Lead, South Dakota. This search proceeded from June 26, 2015 until March 3, 2021 and 64.5 kg yr of enriched active exposure was acquired while achieving a world leading energy resolution of 0.12% FWHM at 2039 keV, one of …