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Optimization Of Pile Construction Sequence Using Cfa Machines, Omar Wael Ammar Jun 2025

Optimization Of Pile Construction Sequence Using Cfa Machines, Omar Wael Ammar

Theses and Dissertations

In most construction projects with deep foundations, piling activities are critical to the project schedule and often fall on the critical path. The piling construction process requires a diverse range of resources, including equipment, materials, and skilful labour. Without carefully planning the construction process according to installation standards, there is a significant risk of time and cost overruns. These overruns are caused by inefficiencies such as equipment idle or lost time due to required lags between closely spaced piles. Therefore, it is essential to develop an optimized construction sequence to minimize these risks and enhance overall project efficiency. The primary …

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The Dubr/Mir-210-5p/Retsat Axis In Cholesterol-Associated Steatohepatitis: Clinical Signatures And Molecular Mechanisms, Hana Mahmoud Abdelzaher Jun 2025

The Dubr/Mir-210-5p/Retsat Axis In Cholesterol-Associated Steatohepatitis: Clinical Signatures And Molecular Mechanisms, Hana Mahmoud Abdelzaher

Theses and Dissertations

Metabolic-associated fatty liver disease (MAFLD) represents an increasing global health challenge, with cholesterol-associated steatohepatitis (CASH) emerging as a distinct pathological entity warranting investigation. While CASH demonstrates unique features compared to traditional triglyceride-driven steatohepatitis, its underlying molecular mechanisms remain poorly understood. This study investigates a novel regulatory axis involving DPPA2 Upstream Binding RNA (DUBR), miR-210-5p, and retinol saturase (RETSAT). 170 patient samples revealed progressive axis dysregulation in disease states, with RETSAT emerging as a highly accurate diagnostic marker (AUC=1.000). Using novel in vitro models of MASH and CASH, we demonstrated that miR-210-5p modulation significantly affects lipid accumulation and cellular phenotype, with …

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Exploring The Relationship Between Country Socioeconomic Characteristics And Electronic Waste, Keliiakekaipuka Aria Mccomber Jun 2025

Exploring The Relationship Between Country Socioeconomic Characteristics And Electronic Waste, Keliiakekaipuka Aria Mccomber

Theses and Dissertations

Electrical and electronic waste (e-waste) is one of the fastest-growing and most hazardous waste streams globally. Despite efforts to improve global e-waste management, 77.7 percent of e-waste remains improperly disposed of, particularly in low- and middle-income countries where environmental and health risks are greatest (Baldé et al., 2024). This study evaluates whether national socioeconomic, cultural, and governmental characteristics can predict three key e-waste outcomes: generation per capita, formal collection rates, and resulting burden per capita. Using data from 2015-2022 for 127 countries, we applied mixed effects models incorporating variables such as GDP, Human Development Index, institutional integrity, financial openness, and …

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Multi-Field Quantum Conference Key Agreement Using An Integrated Photonic Green Machine, Benjamin J. Fisher Jun 2025

Multi-Field Quantum Conference Key Agreement Using An Integrated Photonic Green Machine, Benjamin J. Fisher

Theses and Dissertations

Quantum Conference Key Agreement (QCKA) enables a group of users to generate a shared secret key, which reduces the latency and equipment overhead of establishing multiple Quantum Key Distribution (QKD) links. Conventional QCKA protocols send a multi-photon entangled state from one user to others and a key is generated only when all photons are detected, which is inefficient at high loss and opens side-channels at the receiver side. Here, we overcome this barrier through a multi-field QCKA protocol enabled by designing, fabricating, and testing an integrated photonic Green Machine that implements an eight-mode Hadamard unitary transformation through a beam-splitter network. …

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Optimized Wireless Power Transmission For Low-Cost, Energy-Efficient Internet Of Things Devices In Residential Environments, Daniel Brook Hatch Jun 2025

Optimized Wireless Power Transmission For Low-Cost, Energy-Efficient Internet Of Things Devices In Residential Environments, Daniel Brook Hatch

Theses and Dissertations

Wireless power transmission (WPT) offers a promising solution for powering devices in locations where traditional electrical outlets are inaccessible, such as ceilings or outdoor environments. By utilizing electromagnetic waves, such as light, WPT enables power delivery without the need for physical connections. With line-of-sight (LoS) as its primary limitation, this technology offers significant flexibility and potential for a wide range of applications, making it a compelling focus for research and innovation. Despite the advancements in WPT technologies, their practical application for powering Internet of Things (IoT) devices in real-world scenarios remains underexplored. Many IoT devices are installed in locations where …

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Language Style Evaluation Validation For Implementation On Artificial Intelligence-Enhanced Augmentative And Alternative Communication Devices, Meghan A. Hunter Jun 2025

Language Style Evaluation Validation For Implementation On Artificial Intelligence-Enhanced Augmentative And Alternative Communication Devices, Meghan A. Hunter

Theses and Dissertations

This study explored various methods of evaluating language style for integration into prompts designed for a sophisticated augmentative and alternative communication (AAC) device. A total of 395 individuals without a language disorder were recruited via a crowdsourcing platform to complete five surveys. The initial four surveys were designed to assess individuals' language style using different approaches (questionnaire developed with ChatGPT, self-written, questionnaire developed by Hartman and McCambridge, and choosing tags). Following the completion of these four surveys, a fifth survey was dynamically created based on the responses in the previous four surveys. Each possible response in the fifth survey was …

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Acute Effects Of Blood Flow Restriction During Low-Load Exercise And Recovery On Blood Flow And Performance, Shay B. Richards Jun 2025

Acute Effects Of Blood Flow Restriction During Low-Load Exercise And Recovery On Blood Flow And Performance, Shay B. Richards

Theses and Dissertations

Purpose: Use of blood flow restriction (BFR) during strength training with light loads has been used to induce similar muscular benefits as traditional strength training with heavy loads. Safe and effective recommendations for the use of BFR relies on an understanding of how different methods of BFR alter blood flow during rest and exercise. The purpose of this study was to compare blood flow during exercise and recovery between continuous BFR (CONT), intermittent BFR (INT), and no BFR (NBFR) as a control. Methods: 16 participants (8 male, 8 female) participated in this study on three different days, separated by at …

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A Modular Simulation Environment And B-Spline Trajectory Generation Methods For Multi-Agent Uav Systems, Landon D. Shumway Jun 2025

A Modular Simulation Environment And B-Spline Trajectory Generation Methods For Multi-Agent Uav Systems, Landon D. Shumway

Theses and Dissertations

Multi-agent UAV systems present a complex challenge requiring solutions to numerous subproblems. This research addresses two key issues: simulation testing and path planning. A modular simulation environment is developed, enabling users to run diverse mission scenarios with heterogeneous UAV teams and to implement custom dynamic models and guidance laws. Additionally, two novel B-spline trajectory generation methods are proposed. The first generates time-synchronized B-spline paths for UAVs with arbitrary initial and final states in 2D space, accommodating scenarios where agents must follow predetermined speed profiles. The second guidance method converts spline paths between MINVO, Bézier, and non-uniform B-spline representations, leveraging the …

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Exploring Consequences Of The Double Empathy Problem Across The Autistic Trait Spectrum: First Person Accounts, Cammy C. Peck Jun 2025

Exploring Consequences Of The Double Empathy Problem Across The Autistic Trait Spectrum: First Person Accounts, Cammy C. Peck

Theses and Dissertations

Historically, individuals on the autism spectrum were believed to have deficits in empathy. However, recent research suggests that empathy-related issues occur on both sides of the communication dynamic. This concept known as the Double Empathy Problem (DEP), posits that the perceived lack of empathy is not exclusive to autistic individuals; rather, neurotypical (NT) individuals also experience difficulty empathizing with autistic individuals (Milton, 2012). Milton et al. (2022) describes this as a "breakdown in mutual understanding". Such mutual misunderstanding can have adverse consequences for both autistic and neurotypical individuals. To our knowledge, no studies have directly examined these consequences in relation …

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The Effect Of Personalized Profiles On Generating Customized Content In Artificial Intelligence Augmentative And Alternative Communication Devices, Rachel Johnson Jun 2025

The Effect Of Personalized Profiles On Generating Customized Content In Artificial Intelligence Augmentative And Alternative Communication Devices, Rachel Johnson

Theses and Dissertations

With advancements in artificial intelligence (AI), several augmentative and alternative communication (AAC) devices have begun incorporating AI with the purpose of accelerating and improving message transmission for users. The results have shown that AI can significantly reduce a user's keystrokes, but the generated responses may lack personalization. The objective of this study was to investigate whether integrating a personalized profile containing user information enhances the perceived accuracy and personalization of AI generated messages. Various methods of collecting profile information and differing levels of information within the profile were evaluated. One hundred eighty-one neurotypical English-speakers with no history of language disorder …

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Stepping Into Motherhood: Pregnancy-Induced Changes To Foot Structure And Biomechanics, Lauren R. Williams Jun 2025

Stepping Into Motherhood: Pregnancy-Induced Changes To Foot Structure And Biomechanics, Lauren R. Williams

Theses and Dissertations

INTRODUCTION: Pregnant women have an elevated risk of developing lower limb musculoskeletal disorders, likely due to the rapid increase in body mass and joint laxity. While a few studies have evaluated changes in static foot posture due to pregnancy, it is unclear if body mass or joint laxity is the primary driver. Additionally, how pregnancy affects the mechanics of the foot during dynamic movements is still not understood. PURPOSE: The purpose of this study is to investigate the foot's response to pregnancy. First, we examined foot tissue characteristics across pregnancy, specifically plantar fascia (PF) stiffness, length, and thickness. Additionally, we …

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Comparison Of Elementary Dual Language Immersion Programs And Non-Dual Language Immersion Classes Before And After Attrition, Nathaniel Blain Mitchell Jun 2025

Comparison Of Elementary Dual Language Immersion Programs And Non-Dual Language Immersion Classes Before And After Attrition, Nathaniel Blain Mitchell

Theses and Dissertations

Using a longitudinal, multi-cohort design, this study examines the academic and linguistic effects of student attrition from Spanish-English dual language immersion (DLI) programs, particularly among multilingual learners (MLs). Drawing on 10 years of assessment data from two schools, the study addresses four research questions through multinomial logistic regression and hierarchical linear modeling to evaluate predictors of attrition, reading growth trajectories, and English language proficiency across student subgroups. Results indicated that attrition was most common in the early grades and was modestly associated with disability rates. At the same time, assessment scores were not predictive of program exit. Growth modeling revealed …

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Enhance K-12 Student Online Learning Engagement Through Parental Support And Parent-School Collaboration, Qi Guo Jun 2025

Enhance K-12 Student Online Learning Engagement Through Parental Support And Parent-School Collaboration, Qi Guo

Theses and Dissertations

This dissertation investigates the role of parental support in K-12 online learning through a three-part research agenda grounded in the Academic Communities of Engagement (ACE) framework. The first article presents a systematic review of 31 empirical articles, identifying five key themes for effective parent-school collaboration, including improved communication, shared expertise, increased involvement, role clarification, and researcher-practitioner partnerships. The second study used a survey collecting data from 567 parents across eight online programs to explore challenges parents face in supporting their students' affective, behavioral, and cognitive (ABC) engagement. Eight primary challenges are identified, ranging from student struggles with focusing and motivation …

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The Efficacy Of Open Educational Resources On Achievement Outcomes In Different Higher Education Institutions, Angela Grace Findlay Jun 2025

The Efficacy Of Open Educational Resources On Achievement Outcomes In Different Higher Education Institutions, Angela Grace Findlay

Theses and Dissertations

Students suffer from achievement gaps in higher education. Achievement gaps refer to differences in graduation rates, retention rates, persistence rates, and student's grades. Achievement gaps may negatively affect students who are culturally or ethnically diverse and/or have a lower socioeconomic status. The use of open educational resources (OER) may mitigate achievement gaps as OER assists student success through higher academic performance and cost savings for students. Average quiz scores were obtained at different higher education institutions using an Introduction to Psychology OER. The scores from each course were analyzed using hierarchical linear modeling. Colleges were nested by demographics to evaluate …

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Compliant Mechanisms For Scalable Systems And Precision Deployment, Jared Rodney Hunter Jun 2025

Compliant Mechanisms For Scalable Systems And Precision Deployment, Jared Rodney Hunter

Theses and Dissertations

Compliant mechanisms offer advantages in precision applications where size, scaling, and environmental effects render traditional mechanisms inadequate or likely to fail. However, designing compliant mechanisms and integrating them into larger, more complex systems remains a challenging problem. This thesis presents work that addresses this issue with analytical models and experiments on flat springs, scalable compliant mechanisms, and origami arrays. Storing and releasing energy in tiny, flat compliant mechanisms opens the door for the design of innovative actuators and products in space-constrained situations. Scaling compliant mechanisms allows novel systems to be made that can operate across scales. By designing for scalability …

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Preserving The Past: Creating And Keeping An Archive Of The History Of Park Hill Baptist Church In North Little Rock, Arkansas, Jessica Ann Gates Jun 2025

Preserving The Past: Creating And Keeping An Archive Of The History Of Park Hill Baptist Church In North Little Rock, Arkansas, Jessica Ann Gates

Theses and Dissertations

An archive serves as a custodian of history, preserving materials such as records, documents, and objects that offer insight into people, organizations, and places. Park Hill Baptist Church, located in North Little Rock, Arkansas, was founded in 1947 and celebrated its 75th anniversary in 2022. This paper explores the process of creating a well-organized archive to transform the church's cluttered History Room into a valuable resource. Starting with minimal knowledge of archival practices, I conducted research on how to organize, preserve, and make accessible historical materials, including decisions on what to keep, why it matters, and how to ensure its …

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Structural Analysis Of The Aileu Metamorphic Complex And The Laclo Fault Of Timor Leste, Banda Arc-Continent Collision, Emma C. Morrison Jun 2025

Structural Analysis Of The Aileu Metamorphic Complex And The Laclo Fault Of Timor Leste, Banda Arc-Continent Collision, Emma C. Morrison

Theses and Dissertations

This study presents a structural analysis of the brittle and ductile features within the Aileu Metamorphic Complex of Timor Leste, located in the active Banda Arc–Australian continental collision zone. The deformation history of the complex is interpreted from the Permian–Jurassic deposition of sediments and basalts into intra-arc basins of Gondwana, through to the present- day collision of the Australian continental margin. This collision led to the development of the Wetar Suture and subsequent back-thrusting of the Aileu metamorphic rocks northward over the Banda forearc. Field evidence confirms that the Laclo Fault is currently active, with the most recent movement exhibiting …

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Modeling And Simulation Of Tensegrity Structures With Continuous Cables, Austin R. Brown Jun 2025

Modeling And Simulation Of Tensegrity Structures With Continuous Cables, Austin R. Brown

Theses and Dissertations

This thesis presents a novel approach for modeling and simulating tensegrity structures with continuous cables. A Python-based simulation framework package was developed to address limitations in existing tensegrity modeling software, particularly the inability to model cables passing through multiple nodes. The framework utilizes virtual work methods to solve for equilibrium configurations of 2D, 2.5D and 3D tensegrity systems. Key features include: • A YAML-based input system for easy definition of tensegrity topologies. • Algorithms for handling continuous cables spanning multiple nodes. • Optimization techniques to find stable equilibrium states. • Capability to simulate 2.5D structures wrapped around cylindrical surfaces. • …

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Semitic Root Encoding: Tokenization Based On The Templatic Morphology Of Semitic Languages In Nmt, Brendan T. Hatch Jun 2025

Semitic Root Encoding: Tokenization Based On The Templatic Morphology Of Semitic Languages In Nmt, Brendan T. Hatch

Theses and Dissertations

The morphological structure of Semitic languages like Arabic and Hebrew is based on non-concatenative roots and templates. This complex word structure used by humans is obscured to neural models that use traditional tokenization algorithms. In this work, I present and evaluate Semitic Root Encoding (SRE), a tokenization method that represents Semitic words with distinct root and template stem tokens, and apply it to neural machine translation (NMT). I evaluate whether tokenization with the SRE method leads to increases in translation quality, whether it allows NMT models to hypothesize unseen word forms needed at inference, and how impervious resulting NMT models …

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How Transitioning Autistic Adults Consciously Perform Neurotypical Communication, Makenna J. Allred Jun 2025

How Transitioning Autistic Adults Consciously Perform Neurotypical Communication, Makenna J. Allred

Theses and Dissertations

Using semi-structured interviews this research explored the experiences of transitioning autistic adults with online communication. Participants shared information about navigating online communication, highlighting specific challenges such as interpreting tone and sarcasm, managing unspoken social norms, like emoji use, and responding to ambiguous or unexpected interactions. Participants shared that misunderstandings do occur in their online communication and how they recognize those miscommunications and strategize around preventing and mitigating them. These findings reveal that while computer-mediated communication offers opportunities for connection, it also presents unique obstacles that can exacerbate feelings of frustration due to miscommunications or misunderstandings. To prevent these social frictions …

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Exploring The Feasibility Of Using Virtual Reality With Children With Autism, Gemma Leighton Jun 2025

Exploring The Feasibility Of Using Virtual Reality With Children With Autism, Gemma Leighton

Theses and Dissertations

This study explored the feasibility and social validity of teenagers with autism spectrum disorder (ASD) using a virtual reality (VR) head-mounted display (HMD). VR is emerging as a promising tool for teaching and therapeutic intervention among ASD. Therefore, this study serves to contribute to the field's development by comprehensively evaluating the accessibility for young people with ASD to independently using a VR HMD in a meaningful way. Five teenagers participated (four female, aged 13-15, with mild and mild to moderate support needs) and independently completed tutorials in a virtual environment when learning to operate the VR HMD controllers and hand-tracking …

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Building Brains And Relationships Beginning From Birth: Exploring Multilingual Parents' Experiences With A Babies Initiative Family-School Partnership, Diane D. Joyce Jun 2025

Building Brains And Relationships Beginning From Birth: Exploring Multilingual Parents' Experiences With A Babies Initiative Family-School Partnership, Diane D. Joyce

Theses and Dissertations

This study examined multilingual families’ experiences in a family-school early literacy program during the critical period of brain development, the Phlournoy Babies Initiative (PBI). Participants included five multilingual (ML) and immigrant families who have participated in this program for multiple years. In addition, this study probed how families were applying the strategies shared during PBI sessions within the context of their culture and home environment. Sociocultural, ecological systems, and culturally responsive teaching theories formed the framework of this study. A narrative inquiry approach was applied, which provided the researcher the opportunity to share the stories and experiences of the participants. …

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First Generation Graduate Student Experiences, Andrew Torres Jun 2025

First Generation Graduate Student Experiences, Andrew Torres

Theses and Dissertations

The purpose of this qualitative research study was to gain a better understanding of the experiences, inspiration, motivations, and varying aspects of what it is to be a first- generation master’s level student. Throughout the 2024-2025 academic year, I conducted interviews with three first-generation undergraduate students, three first-generation graduate students, and two first-generation postgraduate professionals at a single university to understand how their higher education experiences were similar and different. I pursued this research topic to understand further what resources graduate students used and which were lacking for their needs. The pursuit motivated me to discover why there was such …

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Developing Indicators For Comprehensive Evaluation Of Equity In Transportation Systems, Ruqaya Emad Alfaris Jun 2025

Developing Indicators For Comprehensive Evaluation Of Equity In Transportation Systems, Ruqaya Emad Alfaris

Theses and Dissertations

Achieving transportation equity is essential for social inclusion, access to opportunities, and reducing disparities. However, traditional evaluation methods are often fragmented and fail to capture equity’s multidimensional nature. This dissertation develops a comprehensive framework for creating indicators to evaluate transportation equity effectively. It begins with a literature review to comprehend the theoretical background, followed by expert interviews highlight gaps in current evaluation practices. Statistical modeling and machine learning analysis was conducted to first explore indicators’ impact on transportation equity, and then investigate transportation safety disparities in underserved communities. Findings from literature review, interview with professionals, and analysis results are used …

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Creativity And Crisis. Case Studies Of Bureaucracy Under Pressure – Determining Factors Affecting Creativity, Andrew Lee Carlson Jun 2025

Creativity And Crisis. Case Studies Of Bureaucracy Under Pressure – Determining Factors Affecting Creativity, Andrew Lee Carlson

Theses and Dissertations

I studied creativity and how it interacts with the crisis environment to devise a way of determining if future situations are amenable to creativity. Through studying creativity theories and crisis responses, I developed a framework and instrument that answers the following questions, semi-quantitatively and qualitatively: 1) Is the future situation or problem amenable to creativity? 2) How much “energy” needs to be expended in solving the problem or situation? 3) Where best can I use creative energy as it relates to the subject matter or process of the situation? I studied situations ranging from personal (pursuit of this PhD), critical …

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The Role Full-Time Faculty Play In Retaining Students With New Initiatives Implemented By The Administration: A Qualitative Case Study, Kenyatta Collins Jun 2025

The Role Full-Time Faculty Play In Retaining Students With New Initiatives Implemented By The Administration: A Qualitative Case Study, Kenyatta Collins

Theses and Dissertations

This qualitative study explored the role full-time faculty play in supporting student retention within the context of new administrative initiatives at a New Jersey community college. Grounded in the framework of faculty as institutional agents, the research investigated how faculty understood their role, engaged with retention efforts, and perceived their alignment with institutional goals. Data were collected through semi-structured interviews with full-time faculty involved in or impacted by retention initiatives. Thematic analysis revealed that while faculty were committed to student success, they experienced limited involvement in the development and communication of these initiatives. Participants expressed a need for consistent communication, …

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Building And Demonstrating A Framework And Guide For Human-Centered Threat Modeling, Warda Usman Jun 2025

Building And Demonstrating A Framework And Guide For Human-Centered Threat Modeling, Warda Usman

Theses and Dissertations

As researchers increasingly seek to understand threats faced by people rather than systems, there remains little consensus on how to study these threats in ways that are grounded in human experience. Traditional approaches to threat modeling are often designed for system vulnerabilities and offer limited guidance for eliciting or analyzing threats as understood by individuals in their social and cultural contexts. This dissertation addresses this gap by advancing human-centered threat modeling (HCTM) in security and privacy research as both a conceptual framework and through a set of empirical studies. The dissertation employs a mixed set of qualitative methods across four …

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Navigating The Transition: Experiences Of Former Collegiate Softball Athletes, Breanna Alleen Bryant Jun 2025

Navigating The Transition: Experiences Of Former Collegiate Softball Athletes, Breanna Alleen Bryant

Theses and Dissertations

The purpose of this research study was to explore the different ways former female collegiate athletes transitioned out of playing their sport. Through qualitative interviews, the research aimed to understand the challenges these athletes faced, such as loss of identity, emotional distress, the absence of structure and support after leaving their teams. It also examined how unprepared these athletes were while going through the transition. The participants in this research study are all former division three college softball players who have just graduated college or have been out for a maximum of ten years. The most significant findings were these …

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Mechanisms Underlying Estrous Cycle-Dependent Changes In Incubated Cocaine Craving, Erin Elizabeth Wannen Jun 2025

Mechanisms Underlying Estrous Cycle-Dependent Changes In Incubated Cocaine Craving, Erin Elizabeth Wannen

Theses and Dissertations

Cues associated with cocaine use are one of the most common relapse triggers and understanding what promotes cue-induced cocaine craving and relapse is a critical question in the field. Human studies have shown that these measures are impacted by fluctuations in ovarian hormone levels, as higher levels of estradiol promote cue-induced cocaine craving in women while higher levels of progesterone reduce craving in both sexes. Enhanced or incubated cue-induced cocaine seeking or craving also changes across the rodent reproductive (estrous) cycle as levels of estradiol and progesterone fluctuate, with enhanced seeking behavior observed during the estrus stage of the cycle. …

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Se Quema: Burnout In Undergraduate Latiné Students, Shirley Victoria Celi-Landeo Jun 2025

Se Quema: Burnout In Undergraduate Latiné Students, Shirley Victoria Celi-Landeo

Theses and Dissertations

Over the past five years, Latiné students have contributed most of the nation’s increase in college degrees earned. But even with more people enrolling in college, undergraduate retention remains a concern, raising critical questions about equity in higher education (The Pell Institute, 2023). This thesis examines burnout among Latiné undergraduates, who face financial strain, familial responsibilities, and lack of representation in resources, contributing to their underrepresentation in graduation rates. The study emphasizes the need to understand and address these stressors to support the success of Latiné students, who are under-represented in graduation rates compared to their counterparts (Excelencia in Education, …

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