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Theses and Dissertations

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Pursuing Culturally Responsive Math Teaching By Secondary Math Educators: A Professional Development Action Research Study, Emily Bell Redding Oct 2023

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 …

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Meditations On Modern America: The Ambiguous Worldview Of Transcendental Meditation, 1967-1979, Grant William Wong Oct 2023

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 …

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Harnessing Surrogate Modeling And Machine Learning For Management Of Water Resources And Environmental Systems, Mahdi Erfani Oct 2023

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 …

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Field And Laboratory Characterization Of Subgrade Resilient Modulus For The Aashtoware Pavement Me, Kazi Moninul Islam Oct 2023

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 …

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Educative Curricular Supports Used To Improve High Cognitive Demand Task Implementation In High-Dosage Mathematics Tutorial, Halley Bowman Oct 2023

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 …

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Evaluation Of The Dynamic Response Of Gravelly Soil Under Different Drainage Conditions, Pressley Margaret Perry Oct 2023

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 …

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Piloting Brief, Just-In-Time Training Videos For Mentors: Expanding And Strengthening Motivational Interviewing For Youth, Mackenzie J. Hart Oct 2023

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 …

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The Unsung Heroes For Intercollegiate Athletics: Examining The Dialogic Principles Of Communication In Community College Athletic Departments, Matthew Alan Stilwell Oct 2023

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, …

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Insights Into Supported Metal Catalyst Sintering And Their Application For Bio-Oil And Crude Oil Upgradation, Md Fakhruddin Patwary Oct 2023

Insights Into Supported Metal Catalyst Sintering And Their Application For Bio-Oil And Crude Oil Upgradation, Md Fakhruddin Patwary

Theses and Dissertations

Typical heterogeneous catalysts consist of transition metal nanoparticles anchored against sintering on an inert, porous, high temperature stable support. The synthesis of supported catalyst involves pretreatment (drying, reduction) of deposited, ionic metal precursor complexes to form metal nanoparticles. In the first part of this work, we aim to understand the influence of pretreatment (reduction temperature, heating rate, moisture content) on final particle size. Supported nanoparticles of Pt and Pd were synthesized by strong electrostatic adsorption (SEA) and dry impregnation (DI). Reduced samples were characterized by in-situ and ex-situ XRD and STEM. The DI-derived samples generally showed an expected increase of …

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Instructional Hub: Bridging The Gap In Teacher Preparation For Online Instruction, Charity Beth Simmons Oct 2023

Instructional Hub: Bridging The Gap In Teacher Preparation For Online Instruction, Charity Beth Simmons

Theses and Dissertations

In the spring of 2020, the coronavirus disease (COVID-19) reached pandemic status in the United States, leading to extended educational disruption and posing significant obstacles for teachers who were unprepared to teach in a virtual environment. Educators adjusted curricular materials, delivery, and assessment methods to accommodate and engage students while maintaining academic objectives and minimizing stress. Few teachers in District 8705, South Carolina, had experience with distance instruction; thus, they had little to no adaptive knowledge on which to depend. The purpose of this dissertation was to find a solution that could significantly enhance teacher preparation for virtual teaching through …

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Understanding The Role Of The Jet Streams And Gulf Stream Eddies On The Northwest Atlantic Marine Heatwaves, Lydia Rose Duncan Sims Oct 2023

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 …

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Creative Insights On The Commissioning, Analysis, And Performance Of Four New Works For Saxophone, Andrew Joseph Hutchens Oct 2023

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. …

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Leveraging Inflammatory Responses Toward Advancing Alzheimer’S Disease Treatments And Biomaterial Implantation, Mihyun Lim Waugh Oct 2023

Leveraging Inflammatory Responses Toward Advancing Alzheimer’S Disease Treatments And Biomaterial Implantation, Mihyun Lim Waugh

Theses and Dissertations

Inflammation is a body’s physiological response to pathogens, foreign materials, or tissue injury. When immune system is triggered, activated leukocytes produce cytokines and chemokines that promote migration of neutrophils and macrophages to the inflammatory regions. At early stages of injury, acute inflammation occurs immediately to fight off the pathogens and restore tissues to homeostasis. However, if the inflammation-inducing stimulus is not removed and thus cells and tissues do not return to its homeostatic state, the prolonged inflammatory responses become a chronic condition. Recent studies have indicated that the receptor for advanced glycation end-products (RAGE), a key receptor of innate immune …

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Particle-Free High Spatial Resolution Velocimetry For Slip Flow Detection, Malhar Prasad Joshi Oct 2023

Particle-Free High Spatial Resolution Velocimetry For Slip Flow Detection, Malhar Prasad Joshi

Theses and Dissertations

Microfluidic systems have a wide range of applications, including biomedical devices, lab-on-a-chip technologies, and aerospace propulsion. Understanding and quantifying the slip flow phenomenon in these microscale and nanoscale channels is of paramount importance for precise control and optimization of fluidic processes. Our study presents a novel approach to directly measure the velocities in a microchannel using Laser Induced Fluorescence Photobleaching Anemometer (LIFPA) and Travel Time After Photobleaching Velocimetry (TTAPV). In this experimental study, microchannels with micrometer dimensions were used, and slip flow conditions controlled. The LIFPA-TTAPV approach was applied to measure slip velocities in the near wall regime, providing accurate …

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Polybenzimidazole Membranes For Electrochemical Applications With Harsh Operating Conditions, Kris Likit-Anurak Oct 2023

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 …

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Water Quality Monitoring And Mapping Using Rapidly Deployable Sensor Nodes, Mohamed Abdelwahab Oct 2023

Water Quality Monitoring And Mapping Using Rapidly Deployable Sensor Nodes, Mohamed Abdelwahab

Theses and Dissertations

Efficient and continuous monitoring of water quality parameters plays a pivotal role in responding to pollution incidents and ensuring the safety of both human consumption and ecological resources. This research introduces an affordable and dependable in-situ water quality sensor package designed for seamless continuous monitoring, providing essential data to facilitate informed decision-making in water resource management. The sensor package enables comprehensive on-site assessment of key water characteristics, including pH, temperature, turbidity (measured in NTU), and total dissolved solids (TDS, measured in ppm). Spatial interpolation techniques, specifically Kriging, are employed to extrapolate variable values at unobserved locations based on nearby measurements. …

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Beyond The Acronym Of Stem: Experiential Learning Professional Development For Integrative Stem Education, Christine Mitchell Oct 2023

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 …

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Neural Correlates Of Audiovisual Integration, Jonathan Conrady Oct 2023

Neural Correlates Of Audiovisual Integration, Jonathan Conrady

Theses and Dissertations

Successfully integrating multiple streams of information is paired with a variety of behavioral enhancements. Multisensory research over the past few decades has demonstrated the criticality of spatial proximity and stimulus effectiveness. Here, we focused on the temporal aspects and underlying neural activity of frequency-varying, audiovisual stimuli using scalp recorded electroencephalography (EEG). Our set of stimuli was particularly chosen because humans are most sensitive to the auditory sound and visual spatial frequencies that make up speech. Recent work has shown that audiovisual integration effects of low-level, simple stimuli are largest when both modalities fall within, compared to outside of, their respective …

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Race Dynamics And Mentoring Experiences Of Aspiring Black Principals, Tiwana Richardson Meggett Oct 2023

Race Dynamics And Mentoring Experiences Of Aspiring Black Principals, Tiwana Richardson Meggett

Theses and Dissertations

This study aimed to investigate the dynamics of race and mentorship while capturing the lived experiences of Black principals as they were in the pipeline to the principalship. Although America’s public schools are becoming increasingly more diverse with students of color, the number of principals of color is relatively low; Blacks account for 10.7 % of the principalship, while whites account for 68.1% (School Principal Demographics and Statistics in the US, 2022). This qualitative study used Critical Race Theory (CRT) as a framework to inform the reader of racial trends, dynamics and/or thematic parallels of the participants in the study. …

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Understanding The Impact Of Adverse Childhood Experiences On Borderline Features And Deliberate Self-Harm Behaviors Among College Students: The Mediating Roles Of Emotion Regulation And Interpersonal Functioning, Sydney Mari Levine Oct 2023

Understanding The Impact Of Adverse Childhood Experiences On Borderline Features And Deliberate Self-Harm Behaviors Among College Students: The Mediating Roles Of Emotion Regulation And Interpersonal Functioning, Sydney Mari Levine

Theses and Dissertations

Research has established ACEs as significant predictors of deliberate self-harm (DSH) in both clinical and community populations. Further, adults meeting criteria for borderline personality disorder (BPD) are nearly 14 times more likely to report childhood adversity. No previous studies have examined the critical roles of emotion regulation and interpersonal functioning as mediating mechanisms in these relations. Thus, the current study explored the mechanism by which ACEs affect borderline personality features (BPF) or deliberate self-harm through emotion regulation and interpersonal functioning in a sample of emerging adult college students. Participants (N = 2,255, M age = 19.25) included college students from …

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Load Determination, Strengthening, And Behavior Study Of Prestressed Concrete Channel Bridge Girders In South Carolina, Elhussien Khaled Elbatanouny Oct 2023

Load Determination, Strengthening, And Behavior Study Of Prestressed Concrete Channel Bridge Girders In South Carolina, Elhussien Khaled Elbatanouny

Theses and Dissertations

The South Carolina Department of Transportation (SCDOT) is currently engaged in a multi-year effort to assess the structural integrity of its inventory of over 9,000 bridges. This assessment process is expected to result in an increase in the number of bridges that require load postings, repairs, or replacements across South Carolina. This could potentially lead to adverse economic repercussions due to restricted truck routes, bridge closures, repair work, and the need for bridge replacements. To alleviate the escalating costs associated with these challenges, it is imperative to explore methods aimed at reducing the need for load postings and bridge closures …

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Acoustic-Emission Monitoring Of Lap Joint Fatigue Cracks, Siddharth Kannan Oct 2023

Acoustic-Emission Monitoring Of Lap Joint Fatigue Cracks, Siddharth Kannan

Theses and Dissertations

Structural integrity is a pivotal consideration in the field of engineering applications, and understanding the behavior of materials and joints under various loading conditions is critical. This thesis presents a novel approach to detect and analyze fatigue induced cracks in various test specimens using Piezoelectric Wafer Active Sensors. This approach is widely used in Structural Health Monitoring applications involving acoustic emissions that can be captured using PWAS which in turn gives the surface response to applied stresses. The ultimate goal of the research is to identify the length of a fatigue crack originating from lap joints and to develop a …

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Computerized Psychological Testing: Designing And Developing An Efficient Test Suite Using Hci And Reinforcement Learning Techniques, William Henry Hoskins Oct 2023

Computerized Psychological Testing: Designing And Developing An Efficient Test Suite Using Hci And Reinforcement Learning Techniques, William Henry Hoskins

Theses and Dissertations

In this work we discuss the design and development of the Carolina Automated Reading Evaluation (CARE), created to facilitate the finding of deficits in the reading ability of children from four to nine years of age. Designed to automate the process of screening for reading deficits, the CARE is an interactive computer-based tool that helps eliminate the need for one-on-one evaluations of pupils to detect dyslexia and other reading deficits and facilitates the creation of new reading tests within the platform. While other tests collect specific data points in order to determine whether a pupil has dyslexia, they typically focus …

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Examination And Application Of Body Condition Methods In Cetaceans, Kira Anne Telford Oct 2023

Examination And Application Of Body Condition Methods In Cetaceans, Kira Anne Telford

Theses and Dissertations

Body condition assessments are a valuable tool for evaluating the relative health of a population through various metrics, indexes, or proxies. Long-term data collection can be used to examine the relationship between fluctuations in body condition and natural or anthropogenic drivers. Application of this information is vital for monitoring the success of the conservation management decisions for a species or population. Cetaceans have a variety of methods available to assess body condition, including invasive methods like biopsies and necropsies or observational methods such as photogrammetry. Exploration of the application of these methods in the literature revealed an emphasis on necropsies …

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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 Oct 2023

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 …

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Probabilistic Cable Aging Diagnosis And Prognosis With Reflectometry And Capacitance Methods, Xuan Wang Oct 2023

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 …

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Progressive Neurochemical, Neuroinflammatory And Cognitive Deficits In An Experimental Model Of Gulf War Illness, Hannah Elizabeth Burzynski Oct 2023

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 …

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Counter-Stories From Former Foster Youth: College Graduates Disrupting The Dominant Narrative, Amanda May Moon Oct 2023

Counter-Stories From Former Foster Youth: College Graduates Disrupting The Dominant Narrative, Amanda May Moon

Theses and Dissertations

In the past decade, research on children in foster care or adults with foster care backgrounds has begun to explore factors that contributed to successful trajectories. Little work has been done, however, on factors that can be controlled, such as resources and support offered by K-12 schools, or for K-12 schooling. In this qualitative study, I explored the beliefs and perceptions of former foster youth college graduates about the impact of K-12 experiences on their academic and life trajectories. After surveying and interviewing five former foster youth college graduates, I used narrative analysis to understand the impact of their K-12 …

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Electric Freight Transportation System Planning And Truck Operation Optimizations, Xuanke Wu Oct 2023

Electric Freight Transportation System Planning And Truck Operation Optimizations, Xuanke Wu

Theses and Dissertations

The substantial demand for fossil fuel consumption is a significant contributor to greenhouse gas emissions, drawing considerable public attention to health and environmental problems. As a result, vehicle electrification is currently recognized as the most effective approach to reduce CO2 emissions from transportation. However, compared to traditional fossil fuel-powered vehicles, electric vehicles have notable disadvantages, including higher upfront purchasing price, longer recharging time, and most significantly, lower driving ranges. All these challenges can potentially result in increased overall operational costs for logistics companies. This thesis proposes a comprehensive optimization modeling framework for electric freight transportation system planning and operations with …

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Robust Underwater State Estimation And Mapping, Bharat Joshi Oct 2023

Robust Underwater State Estimation And Mapping, Bharat Joshi

Theses and Dissertations

The ocean covers two-thirds of Earth, which is relatively unexplored compared to the landmass. Mapping underwater structures is essential for both archaeological and conservation purposes. This dissertation focuses on employing a robot team to map underwater structures using vision-based simultaneous localization and mapping (SLAM). The overarching goal of this research is to create a team of autonomous robots to map large underwater structures in a coordinated fashion. This requires maintaining an accurate robust pose estimate of oneself and knowing the relative pose of the other robots in the team. However, the GPS-denied and communication-constrained underwater environment, along with low visibility, …

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