Digital Commons Network^™

Miguel Zenón's Solo On Olas Y Arenas And His Approach To Improvisation, David Alonso-Otero

Theses and Dissertations--Music

This paper is about Miguel Zenón’s approach to improvisation using one of his solos on his album Alma Adentro: The Puerto Rican Songbook. This includes the biography of Miguel Zenón along with the composer, Sylvia Rexach. Jazz Improvisation has a large spectrum of pedagogy, different ways to approach it along with various points of view. The purpose of this paper is to show one of the many ways to see jazz improvisation through the eyes of Miguel Zenón and his unique thinking process to jazz. The transcription will be in the appendices, as well as the interview done in …

Fatal Futures: Slow Violence, Utopia, And The Postnatural Human In Contemporary American Literature, Shelby Roberts

Theses and Dissertations--English

Fatal Futures: Slow Violence, Utopia, and the Postnatural Human in Contemporary American Literature investigates the ways in which ideas of futurity are articulated in narratives that conceptualize both the end of the world and post-calamity society through the lens of a pessimistic, queer approach to understanding the future. The purpose of this project is to not only build previous research in the configurations of the body in queer, gothic, and speculative American writing as a whole, but to enter into a developing conversation surrounding Appalachian literature through the idea of kinship (the broadening of relationships both chemical and postnatural) as …

Breaking Ground On Self-Efficacy: A Qualitative Exploration Of Intimate Partner Violence Survivors’ Experiences With Therapeutic Horticulture, Rachel Marie Reeves

Theses and Dissertations--Sociology

This dissertation explores how participation in a Therapeutic Horticulture program may support the self-efficacy of survivors of Intimate Partner Violence. Through a thematic analysis of interviews with 45 women living at a domestic violence shelter in Lexington, Kentucky, this study investigates whether and how gardening activities contributed to participants’ belief in their abilities to shape outcomes in their lives.

Findings are organized around Bandura’s four sources of self-efficacy: enactive mastery experiences, vicarious experience, verbal persuasion, and physiological/affective states. These insights contribute to feminist criminology and trauma-informed care literature by illuminating the transformative potential of nature-assisted healing programs.

The Role Of Metabolic Gate Keepers In Cell Fate Decision Making, Brian Kelly

Theses and Dissertations--Biology

Maintaining cellular energy balance and redox stability is crucial to cell survival, with glutamine metabolism playing a central role. While extensively studied in cancer, where it supports biosynthesis and reduces oxidative stress to promote tumor growth, its function in non-cancerous contexts like tissue development and muscle regeneration remains less understood. A key aspect of stem cell biology is quiescence, a metabolically dormant state that preserves the stem cell pool, yet the mechanisms regulating this state are not fully clear. Here, we identify glutamine metabolism as a critical factor governing myoblast proliferation and quiescence through a metabolic program distinct from that …

Heme Oxygenase, Biliverdin Reductase, And Bilirubin Pathways Regulate Oxidative Stress And Insulin Resistance: A Focus On Diabetes And Therapeutics, Wang-Hsin Lee, Zachary A. Kipp, Sally Pauss, Genesee J. Martinez, Evelyn A. Bates, Olufunto O. Badmus, David E. Stec, Terry D. Hinds Jr.

Markey Cancer Center Faculty Publications

Metabolic and insulin-resistant diseases, such as type 2 diabetes mellitus (T2DM), have become major health issues worldwide. The prevalence of insulin resistance in the general population ranges from 15.5% to 44.6%. Shockingly, the global T2DM population is anticipated to double by 2050 compared with 2021. Prior studies indicate that oxidative stress and inflammation are instrumental in causing insulin resistance and instigating metabolic diseases. Numerous methods and drugs have been designed to combat insulin resistance, including metformin, thiazolidinediones (TZDs), sodium-glucose cotransporter 2 inhibitors (SGLT2i), glucagon-like peptide 1 receptor agonists (GLP1RA), and dipeptidyl peptidase 4 inhibitors (DPP4i). Bilirubin is an antioxidant with …

Biparental Inheritance Of Germline-Specific Chromosomes In The Sea Lamprey And Their Roles In Oocytes, Vladimir A. Timoshevskiy, Nataliya Timoshevskaya, Kaan İ. Eşkut, Kasturi Rajandran, Jeramiah J. Smith

Markey Cancer Center Faculty Publications

Many eukaryotic species undergo programmed elimination of specific chromosomes during embryogenesis, typically retaining these chromosomes only in their germ cells. In some species, programmatic elimination of GRCs, or sex chromosomes, also occurs in a sex-specific manner, with specific chromosomes being transmitted or eliminated by only one sex. As such, these chromosomes provide a unique perspective on the evolution of gene functions that are advantageous to the germline and genetic tradeoffs between somatic vs germline or oocyte vs sperm biology. While GRCs have been extensively characterized in male sea lampreys (Petromyzon marinus), the status of GRCs in females has not yet …

Scalable Hypergraph Structure Learning With Diverse Smoothness Priors, Benjamin T. Brown

Theses and Dissertations--Electrical and Computer Engineering

In graph signal processing, learning weighted connections between nodes from signals is a fundamental task when the underlying relationships are unknown. With the extension of graphs to hypergraphs, where edges can connect more than two nodes, graph learning methods have similarly been generalized to hypergraphs. However, the absence of a unified framework for calculating total variation has led to divergent definitions of smoothness and, consequently, differing approaches to hyperedge recovery. This challenge is confronted in this work through generalization of several previously proposed hypergraph total variations, allowing ease of substitution into a vector-based optimization. To this end, a novel hypergraph …

Multi-Objective Design Optimization Of Power Converters For Electric Aircraft Propulsion, Ben Luckett

Theses and Dissertations--Electrical and Computer Engineering

As global focus shifts to the electrification of the aviation sector, the need for high efficiency, lightweight, and reliable electric aircraft propulsion power converter systems has become apparent. These goals can be somewhat conflicting with each other, and a single multi-domain-optimized solution is not guaranteed. The search for a design which presents satisfactory merits becomes a drudge through various trade-off studies which can expend vast quantities of manpower and time. As a remedy to this, design automation allows the process to be computer-assisted. This dissertation presents the core fundamentals for a general multi-objective design optimization framework intended for the design …

Influence Of Industrial Hemp On Soil Health Parameters In A Kentucky Cropping System, Jack T. Eaker

Theses and Dissertations--Plant and Soil Sciences

Industrial hemp (fiber, floral, and grain: Cannabis sativa L.) legalization has prompted research into its incorporation into agronomic rotations and impacts on agroecosystem services such as nutrient dynamics. This study quantified the effects of integrating grain and fiber hemp on soil health, hypothesizing hemp would positively impact soil health due to its taproot, reported C benefits, and nutrient requirements. Conducted in Kentucky at two locations, a completely randomized block design included six crop rotation treatments, with soil cores collected at initiation (2020) and post three growing seasons (2023). Soil parameters analyzed included particulate organic matter, short-term CO2 mineralization, water-extractable organic …

Revolutionizing Grapevine Breeding Programs: A Mobile Genome Editing System For Perennial Crops, Bridget Bolt

Theses and Dissertations--Plant and Soil Sciences

Grapevine (Vitis vinifera) faces unprecedented challenges from climate change, with up to 90% of current growing regions potentially becoming unsuitable for production within decades. Traditional breeding approaches require 25-30 years for variety development, creating a time constraint incompatible with the pace of environmental change. This research establishes the approach for a novel mobile RNA-based gene editing platform that addresses longstanding bottlenecks in grapevine improvement while preserving cultivar identity and reducing breeding timelines.

This research developed a three-component system for transgene-free gene editing in grapevine. First, a mobile CRISPR/Cas9 system was established using Agrobacterium rhizogenes transformation and the cut-and-dip …

Spanish-Speaking Interpreters’ Perspectives: How Latinx Immigrant Caregivers Navigate The Special Education Process, Lizeth B. Tomas Flores

Theses and Dissertations--Educational, School, and Counseling Psychology

The study examined the experiences of Spanish-speaking interpreters working with Latinx immigrant caregivers during the special education process, their perspectives on how caregivers and the IEP professional committee members participate in the process, aiming to gain a better understanding of how Latinx immigrant families navigate the special education process. Interpreters play a crucial role in the special education process for families from culturally and linguistically diverse backgrounds, as they facilitate the transmission of information between caregivers and special education teams. Interviews were conducted with six special education interpreters in a southwestern suburban school district in the United States. A qualitative …

The Impact Of Whiteness Among Black College Students' Racial Identity, La'quida Reneé Smith

Theses and Dissertations--Educational, School, and Counseling Psychology

Although the impact of racism is well-documented in both conceptual and empirical research on the experiences of Black college students, some scholars have pointed out that many of the negative, race-based experiences these students face on college campuses extend beyond overt acts of racism (e.g., individual racism, institutional racism; Gusa, 2010; Hargons et al., 2022; Ingram & Wallace, 2019; Le et al., 2020; Smith et al., 2011; Tyler et al., 2022). Whiteness has been identified as an overt factor shaping the lived experiences of Black individuals (Leonardo, 2009; Matias, 2016; Tyler et al., 2022) and is, therefore, believed to impact …

Characterization Of The Solid-State Bonding For Simulated Charge And Seam Welds In The Porthole Die Extrusion Process, Randall L. Bowers

Theses and Dissertations--Chemical and Materials Engineering

The isothermal (ISO-T) compression configuration is ideal for utilizing as a material input of flow stress at temperature and strain rate in models of the porthole die extrusion process due to the isothermal nature of the test. Micro-tensile testing was conducted to validate the solid-state welding integrity of the ISO-T samples at various temperatures and strain rates. Results of the mechanical testing were correlated with fractography and microstructural evaluations of the welds to confirm bonding behavior. Both clean interface conditions and oxidation and lubrication layers were evaluated to simulate the difference of seam and charge welds in the process. Results …

Combinatorial Thin Film Approach To Accelerate Materials Discovery: Development Of Nanoporous And Bulk Multi-Principal Element Alloys, Tibra Das Gupta

Theses and Dissertations--Chemical and Materials Engineering

Multi-principal element alloys (MPEAs) have garnered significant attention in materials science due to their potential for exhibiting a combination of desirable properties stemming from their unique configurational entropy. While early research focused on equiatomic compositions, recent studies have indicated that non-equiatomic MPEAs may offer superior mechanical performance. However, the identification of optimal non-equiatomic compositions remains challenging due to the vast compositional space and the reliance on time-consuming and computationally expensive methods. This dissertation presents a combinatorial thin film approach as a rapid and efficient strategy for discovering two types of materials: nanoporous and bulk MPEAs.

The first study explores the …

Chromatographic And Electrophoretic Analysis Of Lignin-Derived Monomers And Dimers: Extraction Method Development And Evaluation Of Cyclodextrins For Recovery, Anjam Sadik

Theses and Dissertations--Chemistry

Biorefineries play a vital role in reducing dependence on fossil fuels and addressing global warming concerns. Unfortunately, investment in biorefineries remains limited due to economic sustainability concerns. One approach to enhance the economic viability of biorefineries is by fully utilizing the potential of feedstocks, particularly lignocellulosic biomass, which is commonly used in these processes. Traditional processing methods often alter the lignin portion of biomass, making it unsuitable for further utilization. However, when retained in its native form, lignin can serve as a valuable source of chemicals that contribute to the economic sustainability of biorefineries.

The lignin-first approach, which removes lignin …

Catalytic Deoxygenation Of Oleaginous Biomass To Renewable Diesel And Sustainable Aviation Fuel Via Decarboxylation/Decarbonylation, Chukwudalu Great Umenweke

Theses and Dissertations--Chemistry

Several technologies have been developed to produce hydrocarbon biofuels – renewable diesel (RD) and sustainable aviation fuel (SAF) – from fats, oils, and greases (FOG), with the hydroprocessing of esters and fatty acids (HEFA) representing one of the most mature pathways. In its current form, HEFA is mainly reliant on the hydrodeoxygenation (HDO) reaction, which has several drawbacks since HDO requires large amounts and pressures of hydrogen, feedstocks of high purity and cost, as well as problematic sulfided catalysts that risk contaminating the biofuel product with sulfur. A process based on decarboxylation/decarbonylation (deCO_x) offers an attractive alternative to …

The Physiology Of Exercise, Rosie Lanphere

Open Educational Resources

The Physiology of Exercise (3rd Edition) is an essential resource for upper-level undergraduates studying exercise science. Written by Rosie Lanphere, PhD, CSCS, this text provides a clear and comprehensive exploration of how the human body responds and adapts to physical activity.

Covering metabolism, energy expenditure, and the integrated roles of the nervous, cardiovascular, endocrine, muscular, and respiratory systems, this edition reflects the latest research and practical applications in the field.

Designed with students in mind, each chapter includes learning objectives, key terms, and scholarly questions to reinforce understanding. Whether preparing for a career in exercise science or professional certification, this …

Incarceration Reimagined: A Diversionary Option For Serious Felony Offenders, Jane Mitchell

Kentucky Law Journal

No abstract provided.

Factors Of Willingness To Pay For Equine Veterinary Services, Olivia Gibson, Shuoli Zhao, C. Jill Stowe

Animal and Food Sciences Faculty Publications

This study estimates correlates of willingness-to-pay (WTP) for routine, elective, and urgent equine veterinary services in the United States. Through a nationwide online survey of US horse owners aged 18 and older, a payment card approach was utilized to elicit WTP for annual vaccinations, a lameness exam, and emergency colic surgery. Based on the results from an interval regression model, we found that financial capacity, income level, and the number of horses owned were significant predictors of WTP across all three service types. These findings have implications for equine veterinary practice management and client communication regarding treatment costs.

Resilience After Prenatal Substance Exposure: Exploring The Role Of Cumulative And Specific Protective Factors In Predicting Toddlerhood Temperament Profiles, Anjeli Elkins

Theses and Dissertations--Psychology

Objective

Prenatal exposure to common substances, including nicotine, marijuana, cocaine, methamphetamine, opiates, and alcohol, has been linked to a wide range of psychiatric disorders and neurodevelopmental impairments. Identifying protective factors that may improve temperament profiles in toddlers who have experienced prenatal substance exposure may protect against these adverse outcomes and is crucial for developing targeted early interventions.

Methods

Participants (n=92; Mage = 28.7 years; 47.0% White) were biological mothers of toddlers (Mage = 22.6 months) with prenatal substance exposure. Mothers responded to an online survey that gathered information on substance use during pregnancy, proposed perinatal protective factors, and child temperament. …

Associations Between Queer Parent Family Socialization And Adolescent Outcomes Among Diverse Lgbtq+ Parent Families In The U.S., Nita U. Kulkarni

Theses and Dissertations--Psychology

Queer parent family socialization refers to the way LGBTQ+ parents talk with their children about what it means to be queer in society, how to handle discrimination, and ways to have pride in their family’s identity. This construct has been linked with positive well-being outcomes in children, and this study used a strengths-based, mixed- methods framework informed by Minority Stress Theory and intersectionality to examine how queer parent family socialization related to several adolescent well-being outcomes, namely internalizing behaviors, social competence, and adaptive coping. Participants recruited across two projects were 191 queer parents with an adolescent and 114 adolescents with …

Weighted Family History Density Of Substance Use: Influence On Participant Substance Use Onset, Escalation, And Duration, Carleigh A. Litteral

Theses and Dissertations--Psychology

Substance use disorders impose a staggering toll on the United States (U.S.), straining healthcare systems, destabilizing communities, and profoundly impacting both individuals and families. Approximately one in six Americans aged 12 and older had a past-year substance use disorder in 2022 (Key Substance Use, 2022), and nearly one-third of adults experience a substance use disorder in their lifetime (Wu, 2010), contributing to an economic burden exceeding $400 billion annually (National Drug Threat Assessment, 2011). Family history of substance use disorders is a key predictor of vulnerability, with individuals who have affected relatives being 2–8 times more …

Relationship Between Anticipated Stress And Individuals’ Health-Related Behaviors, Julie Parsons

Theses and Dissertations--Psychology

Prior work in assessing the relationship between stress and health behaviors has identified the complex and multi-directional nature of these relationships. However, minimal work has assessed the possible relationships between stress anticipation and health behaviors such as diet, physical activity, and sleep outcomes in individuals. This work seeks to address this gap by conducting a daily diary study assessing within-person associations between stress anticipation and health behaviors over the course of a week. We hypothesized that daily stress anticipation would be negatively associated with dietary scores, physical activity engagement reports, sleep quality, and sleep duration while being positively correlated with …

Interplay Between Computational Techniques And Quantum Theory: Advancing Quantum Chaos And Quantum Error Correction, Refaat Ismail

Theses and Dissertations--Physics and Astronomy

This dissertation investigates computational techniques addressing critical problems arising within quantum chaos and quantum error correction (QEC). First, we investigate quantum dynamics via the Lanczos algorithm, establishing how its computational features — branching patterns, convergence, and complexity saturation — relate to physical properties like spectral statistics and operator matrix elements. We derive a formula connecting Lanczos coefficients to spectral densities for two-branched Lanczos sequences, revealing how branching patterns encode level repulsion—a hallmark of quantum chaos. Furthermore, we develop an analytic framework predicting Krylov complexity saturation from static system properties alone. Specifically, we decompose the saturation value into a spectral density-dependent …

Diet And Migration In The Prehistoric Populations In The Greater Nicoya Region Of Nicaragua, Ashley Nichols Whitten

Theses and Dissertations--Anthropology

The goal of this three-paper dissertation was to engage with the archaeological hypotheses of prehistoric migration from Mesoamerica into the Greater Nicoya Region of Nicaragua. To that aim, this dissertation contains a discussion on the current information supporting and refuting the migratory hypotheses. New data is also presented in the form of stable isotope analysis and bioarcheological analysis of dentition from prehistoric archaeological sites in Pacific Nicaragua.

The first paper titled “Prehistoric Foodways and Migration Hypotheses in the Greater Nicoya Region of Nicaragua” outlines the current available research concerning migration out of Mesoamerica into Pacific Nicaragua. The potential migration is …

Free Food And The Fabric Of Need: Moralized And Institutionalized Care Within Kentucky Charitable Food Programs, Alisha D. Mays

Theses and Dissertations--Anthropology

This dissertation offers a critical ethnographic examination of hunger and charitable food programs (CFPs) in rural Eastern Kentucky, situated within the broader political economy of welfare retrenchment and neoliberal governance in the United States. Through multi-sited fieldwork spanning food pantries, mutual aid networks, state and federal partner agencies, and the regional food bank system, I analyze how hunger is experienced, managed, and framed by clients, volunteers, and organizational staff.

This work uses qualitative methods to weave the lived experiences across intersecting charitable food systems; this dissertation contributes to economic anthropology by illuminating the relational and political dimensions of hunger in …

Precision Measurement Of The Muon’ S Anomalous Precession Frequency Using Energy Integrated Analysis In The Fermilab Muon G- 2 Experiment, Joseph Peck

Theses and Dissertations--Physics and Astronomy

This dissertation investigates the anomalous magnetic moment of the muon, aµ, through the Fermilab Muon g -2 Experiment, which aims to measure aµ to a precision of about 140 parts-per-billion.

Muons were injected into a magnetic storage ring where their decay positrons were detected by calorimeters. The changing spin and momentum orientation leads to an oscillation in decay positron counts, known as the anomalous precession frequency ! a. Using the magnetic field and !a measurements, we can determine the value of a µ. This study focuses on the Q-Method determination of !a, which utilizes an energyintegrated reconstruction rather than high-energy …

Alternative Visions Of Swedish State Feminism, Lukas Bullock

Theses and Dissertations--Gender and Women's Studies

Sweden has been lifted as a prominent example of a successful feminist policy enactor, and has built credibility as a humanitarian actor both domestically and transnationally. Simultaneously, intersectionally marginalized groups have attested to patterns of social exclusion and feelings of political disenfranchisement in Swedish society, calling into question Sweden’s reputation for feminist exceptionalism. This dissertation project centers on unpacking this dynamic by examining how Swedish gender equality policymaking institutions design and implement feminist policy, and how those efforts are interpreted and contested by intersectionally marginalized groups of Afro-Swedish feminist activists. Drawing from a mixed-methods framework that includes feminist ethnography (interviews, …

Supporting Linkage Facilitators Working With Persons With Opioid Use Disorder, Tess K. Drazdowski, Anthony P. Coetzer-Liversage, L. A. R. Stein, Martha Tillson, Dennis P. Watson, Lauren A. Hoffman, Aaron Hogue, Sierra Castedo De Martell, Angela Marie Hagaman, R. Neil Greene, Milan F. Satcher, Patrick F. Hibbard, Jodie M. Dewey, Ashli J. Sheidow, Noel Vest

Behavioral Science Faculty Publications

This narrative review explores the evolving role of linkage facilitation (LF) in supporting persons with opioid use disorder (OUD) including both the organizational strategies to initiate and sustain LF services and strategies to support the LF workforce. Drawing on expert consensus and iterative review by an interdisciplinary author team, we synthesized relevant literature from diverse fields using a narrative review approach. Organizational strategies include: ensure leadership support, engage community partners and tailor services, consult with those already delivering LF services, provide adequate pay and career advancement opportunities, establish role clarification, and create official documentation of LF services. Strategies to support …

Healthy Dietary Intake Diminishes The Effect Of Cerebral Small Vessel Disease On Cognitive Performance In Older Adults, Christopher E. Bauer, Valentinos Zachariou, Colleen A. Pappas, Pauline Maillard, Charles S. Decarli, Arvind Caprihan, Brian T. Gold

Behavioral Science Faculty Publications

Introduction: We evaluated whether regular dietary intake of nutrients commonly found in fish, unsaturated oils, and nuts would moderate the associations between neuroimaging biomarkers of cerebral small vessel disease (cSVD) and cognitive function in older adults. Methods: Dietary information, Montreal Cognitive Assessment (MoCA) scores, and magnetic resonance imaging (MRI) scans were collected from 71 older adults without dementia (60–86 years). MRI biomarkers of cSVD were calculated for each participant. Multivariate linear regression models were computed using dietary intake as the moderating variable. Covariates included age, sex, and estimated intracranial volume. Results: Dietary intake moderated the association between several cSVD biomarkers …