Digital Commons Network^™

Distribution Of Particulate Organic Carbon – Fluxes And Inventories – In Growth-Faulted Coastal Wetlands, Samuel Joel Whitehead

Theses and Dissertations--Earth and Environmental Sciences

Coastal wetlands along the Northern Gulf of Mexico (NGOMx) are critically important but threatened environments which provide significant and diverse economic, social, and environmental value. These environments are essential components to the global carbon cycle, serving as one of the most efficient terrestrial carbon sinks. Since onset of the Industrial Revolution increasing rates of coastal wetland loss have been documented due to a variety of anthropogenic activities, neotectonic processes, subsidence, and rising sea-levels. This research utilized an array of methods and sedimentological analyses to test the hypothesis that growth-fault induced changes at Earth’s surface affects the delivery to, and storage …

The Revised Systematics And Paleoecology Of The Devonian Stemless Crinoid Genus Edriocrinus Hall, 1858, Catherine E. Herbert

Theses and Dissertations--Earth and Environmental Sciences

New morphological observations of Edriocrinus Hall, 1858, enable a modern, holistic view of this unusual crinoid genus, previously included in the Superorder Flexibilia (Zittel, 1895) Wright et al., 2017. Re-analysis of Edriocrinus suggests that the genus should now be assigned to the Order ‘Dendrocrinida’ within the Magnorder Eucladida Wright, 2017 based on the five infrabasals, single radianal in the cup, absent anal sac, and non-pinnulate arms with rectangular uniserial brachials. Moreover, examination of the slight variations separating the current 14 Edriocrinus species indicates that these “species” are likely ecophenotypes. The current Edriocrinus species are revised based on firmly bound calyx …

Naturally Occurring And Introduced Tracers For Examining Water Pathways In Urban Environments, Elizabeth Avery

Theses and Dissertations--Earth and Environmental Sciences

Naturally occurring stable isotopes of water and introduced water tracers allow researchers to examine water pathways and better understand spatial and temporal variability in water sources. Trends in naturally occurring stable isotope values can function not only as a tracer for precipitation patterns and moisture recycling but also as a confirmation of municipal data. Additionally, these data can provide an early signal for the effects of climate change on these sources, reducing uncertainty from physical measurements. To further assess water pathways, introduced tracers can be used to investigate surface and below ground surface flow for streams and rivers.

In chapter …

Deformation Of Wall Rocks And Overburden Sequences Proximal To Salt Diapirs In Salt Valley, Utah: Implications For Predicting Subseismic Damage In Salt Tectonic Systems, William Swanger

Theses and Dissertations--Earth and Environmental Sciences

Although deformation related to salt tectonics is generally considered to be an ancillary field of structural geology, owing to its relatively limited occurrence in the geologic record, the preponderance of salt-involved systems in multiple hydrocarbon-rich basins around the world (e.g., Gulf of Mexico, Atlantic passive margins, Iran, etc.) creates a necessity for understanding salt-related deformation. Traditionally, salt was considered to be relatively weak and thus was mostly unable to drive deformation of adjacent wall rocks and cover sequences. However, a number of recent numerical modeling studies have shown that mobilized and pressurized salt may have the ability to actively pierce …

Tryptophan-Like Fluorescence And Non-Point Source Pollution In Karst Basins, Inner Bluegrass Region, Kentucky, Ryan Dapkus

Theses and Dissertations--Earth and Environmental Sciences

Typically, the degree of fecal contamination of water is assessed by the concentration of thermotolerant coliforms, like E. coli. This method is time-consuming, taking > 18 hours between the start of incubation and subsequent enumeration. The current study examines the utility of monitoring tryptophan-like fluorescence (TLF) using in-situ fluorometers as a proxy for fecal contamination, particularly E. coli. Relative timing of discharge peaks and TLF peaks is considered, as well as differences in E. coli concentrations and major anion concentrations between two different basins that were monitored weekly. Results indicate that TLF is somewhat useful in the prediction of …

Syn- To Post-Orogenic Evolution Of Collisional Mountain Systems: Investigating The Potential For Crustal Flow Using Thermochronology And Numerical Models, Brandon Spencer

Theses and Dissertations--Earth and Environmental Sciences

This dissertation is composed of three distinct manuscripts which collectively investigate processes that contribute to the late evolution of collisional mountain systems —specifically, the ancient Appalachian-Caledonian system. In the first paper, ⁴⁰Ar/³⁹Ar thermochronological data are used to constrain the timing of exhumation of the Scandian orogenic wedge of northern Scotland. Muscovite and amphibole samples yield dates of ca. 420-411 Ma, consistent with cooling after peak orogenesis. During this cooling phase, dates from both systems in individual thrust sheets show an increase in cooling rate in the later stage of exhumation; in the orogenic core, the cooling rate …

The Role Of Sox4 In Ocular Morphogenesis And Retinal Differentiation, Rebecca Petersen

Theses and Dissertations--Biology

Visual impairment ranges from mild forms that can be corrected with glasses to more severe cases that result in permanent loss of vision. Microphthalmia, anophthalmia, and coloboma (collectively referred to as MAC) account for 11% of cases of pediatric blindness and are a result of improper ocular morphogenesis. Retinitis Pigmentosa (RP) is a retinal degenerative disease that affects 1 in 3000 people worldwide. It is a progressive disorder that initially begins with loss of vision in low light settings due to rod photoreceptor degeneration but progresses to complete blindness upon loss of cone photoreceptors. Currently, there is no cure for …

Gender And Remittances: Lived Experiences Of Women In Oaxaca, Mexico, Araby Smyth

Theses and Dissertations--Geography

This dissertation project analyzes the ways that migration and remittances, the money that migrants send to people in their place of origin, intersect with the political and social dynamics in an Indigenous community in the Isthmus of Tehuantepec region of Oaxaca, Mexico. Drawing on 16 months of ethnographic fieldwork, which included semi-structured interviews and participant observation alongside historical archival investigation, this dissertation examines the following questions: What international organizations, national government, and private sector policies govern remittances? How does Indigenous collective work and communal governance shape remittance management? How do the responsibilities of family members shift with migration and how …

"It's Not Rainbows And Unicorns": Regulated Commodity And Waste Production In The Alberta Oilsands, Hugh Deaner

Theses and Dissertations--Geography

This dissertation examines the regulated oilsands mining industry of Alberta, Canada, widely considered the world’s largest surface mining project. The industrial processes of oilsands mining produce well over one million barrels of petroleum commodities daily, plus even larger quantities of airborne and semisolid waste. The project argues for a critical account of production concretized in the co-constitutional relations of obdurate materiality and labor activity within a framework of regulated petro-capitalism. This pursuit requires multiple methods that combine archives, participant observation, and semi-structured interviews to understand workers’ shift-to-shift relations inside the “black box” of regulated oilsands mining production where materiality co-constitutes …

Undoing Colorblind Ecologies: Redlining And Just Green Enough In The Urban Forest Of Boston's Franklin Park, Chelsea M. Parise

Theses and Dissertations--Geography

Urban political ecology research increasingly engages multi-disciplinary methodologies to clarify the role that the botanic plays in creating, maintaining, or subverting ecological geographies of power. Fredrick Law Olmsted intended the forest within Franklin Park to heal the physical degeneration and social disunity he believed resulted from urban living conditions but instead the forest within Franklin Park has grown in contexts of increasingly complex environmental and racial difference. I examine how the urban forest in Boston’s Franklin Park has ecologically manifested racialized power relations through distinct periods of elite nature-making and segregated grassroots stewardship. I utilized archival research, forest surveys, and …

Affective Registers Of Displacement: Eviction And Gentrification In Post-Earthquake Mexico City, Jess Linz

Theses and Dissertations--Geography

This dissertation contributes to understandings of the affective and emotional register of urban politics by analyzing how affective dynamics influence struggles over displacement in Mexico City amid rapid gentrification and in the wake of the 2017 earthquake. Drawing primarily on feminist and queer/cuir theory and trauma studies, I aim to show the relevance of an often-overlooked dimension of urban political struggles. This dissertation is based on data collected through ethnographic methods over the course of 2018-2021. The primary source of data is long-form semi-structured interviews, supported by participant observation in meetings, protests, and WhatsApp groups. The dissertation studies the following …

Tracks/Traces: The New Deal Transformation Of Lexington, Kentucky’S Landscapes Of Horseracing And Housing, Piotr Wojcik

Theses and Dissertations--Geography

Lexington, Kentucky is a key node in the global thoroughbred horse industry. This archival research examines the transformation of its horseracing and housing geographies during the 1930s by comparing the redevelopment of an old urban racetrack into federal public housing with the simultaneous development of a new racing plant in the nearby countryside. It analyzes the social and economic relations underlying this shift in addition to how these relations were naturalized by the new landscapes they created. Results suggest that a local growth coalition was seeking to emerge from a financial crisis through a spatial fix that capitalized on cultural …

Elephants In The Room: Covid-19 Pandemic Political Ecologies Of Tourism In Tanzania, Helen C. Richardson

Theses and Dissertations--Geography

The COVID-19 pandemic brought forth unprecedented and ever-changing crisis and disruption to societies and economies around the globe.[1] As the COVID-19 pandemic continues to interrupt travel worldwide, the tourism industry, and the countries who rely on it as a major source of income, are in crisis. These processes have reconfigured economic capital flows and foreign investment in the global south. This is particularly the case in Tanzania, as tourism was Tanzania’s highest foreign exchange earner and accounted for 17% of Tanzania’s gross domestic product in 2019.[2] This project draws upon a political ecology framework to examine the Tanzanian …

Speaking Of Home Here And There: Everyday Experiences Of Belonging Among Highly Educated Immigrants, Katherine Feske-Kirby

Theses and Dissertations--Geography

This thesis explores how highly educated immigrants articulate a sense of belonging upon relocating to the United States, more specifically to the Lexington, KY area. Engaging with feminist political geography as well as migration and cultural studies, I argue that articulations of belonging are framed through transnational attachments, which respectively expand individuals’ ability to employ everyday forms of belonging. Expressions and understandings of transnational belonging are framed through in-depth interviews on participants’ workplace, relational dynamics, and engagement with the geopolitical discourse on migration. Through these interviews, a broader representation belonging is presented, while questions on highly educated immigrants’ privilege and …

Part-Time Normals: Embodied Trans Geographies Of Homonationalism, Ivy Faye Monroe

Theses and Dissertations--Geography

Self-understanding of one’s gender identity both emerges from, and rearticulates into, the ways one experiences and mediates their personal and social relationships with the geographic worlds they inhabit. Trans geographical literature has, to date, created compelling work on the social geographies of trans people in highly-gendered spaces. This thesis extends the existing literature to research how gender is both experienced and performed in the mundane structures of everyday life. Building from theories of cruel optimism and homonationalism, this research examines how the discursive and spatial epistemologies of gender identity inform attachments to structures of normativity. Through archival research of transvestite …

Short Story Collection, Kevin Bond

Theses and Dissertations--English

This thesis consists of four pieces of short fiction workshopped as part of the Master of Fine Arts in Creative Writing program at the University of Kentucky. Themes and topics explored include familial dynamics, depictions of childhood and coming of age, solitude, adverse psychological effects of toxic masculinity, natural sphere as sanctuary and source of spiritual renewal, and sense of place.

Reading Comprehension Constrains Word Reading: A Tongue Twister Study By Moderating Attentional Control, Xueying Wang

Theses and Dissertations--Linguistics

Numerous research studies show word reading performance influences reading comprehension. Few studies investigate how reading comprehension influences word reading. The current study explores whether alleviating the attention required for reading comprehension correlates with a better word reading performance. Three types of tongue twister reading tasks that involve recall (RR), semantic priming (PP), and instructional focus on the phonological information (PF) all have a high demand for attention on word reading. Differently, the attention demanded by PP tasks on reading comprehension is smaller than RR and RF tasks. Numbers of speech errors are used to manifest the variability of these three …

A Corpus Study Of The Development Of The Adjective Phrase In French Children, Avery Elizabeth Baggett

Theses and Dissertations--Linguistics

In this thesis I attempt to answer three questions:

H1) Do children use proportionally more prenominal or post-nominal placement of adjectives than adults?

H2) Are children more conservative or more creative in their behavior in alternating prenominal and post-nominal placement of adjectives?

H3) If colored terms are more frequent in child speech will they pattern more like prenominal adjectives or more like post nominal adjectives, as in adult speech?

To do this, I examine two general semantic viewpoints, opting to use Scontras & Goodman (2017) subjectivity hypothesis. Next, I provide a general overview of First Language Acquisition research and then …

Fighting 'Stance': The Role Of Conversational Positioning In League Of Legends (Multiplayer Online Battle Arena) Discourse, William Breslove

Theses and Dissertations--Linguistics

For researchers, the study of video game players - how they behave, interact, and cooperate in a virtual world – presents a challenge: what methodologies are best suited to approaching these interactions? From a sociolinguistic approach, how do gamers converse, and what do these conversations reveal about epistemic, affective, and political relationships? This study uses John DuBois’ Stance Theory (2007) and recent modifications of it (Kiesling 2022), to analyze data gathered from the popular multiplayer online battle-arena (MOBA) game League of Legends. It focuses on in-game interlocutors’ conversation samples to show their positioning, intersubjective alignment, and evaluation of a …

La Representación De La Masculinidad En El Personaje Del Policía: Cine, Televisión Y Novela Española Del Siglo Xxi, Daniel Fonfría-Perera

Theses and Dissertations--Hispanic Studies

This research focuses on the type of hegemonic masculinity—a term that has traditionally belonged to a purely sociology domain—exhorted in the works of fiction published and released in Spain in the last two decades, searching for patterns that indicate that a normative type is encouraged. After tracing the different types of hegemonic masculinities that have characterized policemen since the late 30’s, the findings show how the modern notion of masculinity depicted in the works analyzed, even though it can no longer be considered monolithic, still shares some patterns with the masculinity predominant in cultural products during Francoism.

First-Person Politics: Strategies Of Latin/X American Women To Change The Neoliberal Requirements For Empowerment And Inclusion One Share, Like, Subscribe At A Time, Marlee Northcutt

Theses and Dissertations--Hispanic Studies

This project investigates the strategies of Latin/x American women who have used their voices and influence in the media to break barriers, enter spaces that have excluded them, and advocate for changes so that young girls like them do not have to face these same limitations. Chapter One investigates politicians who, from their political power positions, interweave personal stories with their accomplishments to provide role models for these careers. Chapter Two identifies actors who combine their personal stories with activist causes to alter representation in TV and film. The YouTubers in Chapter Three bolster a rhetoric of empowerment to encourage …

Mapping Memory: Locational Memory In The First-Person Narrative Of Three Latinx Writers, Stephanie R. Beasley

Theses and Dissertations--Hispanic Studies

Locational memory, which relies upon our natural inclination to store and recall images, adds spatial orientation to a narrative, and provides an accessible framework for the recreation of the past in first-person narrative. The power of locational imagery as a device of memory is both historically and scientifically supported. It is essential to the system of artificial memory that the ancient Greeks called a memory palace, described by both Mary Carruthers and Paul Ricouer. Scientifically, studies show that the strongest autobiographical memories are based on visual imagery and that recall of specific locations provides a cognitive basis for the recreation …

Propuestas De Autoría Y Datación En El Teatro De Lope De Vega A La Luz De La Inteligencia Artificial, Álvaro Cuéllar

Theses and Dissertations--Hispanic Studies

The purpose of this thesis is to shed light on the numerous authorship and dating problems presented by the Spanish Golden Age theatre. Specifically, it focuses on Lope de Vega (1562-1635), a notable and highly successful playwright of this period. Through the compilation of a wide set of texts and the application of Artificial Intelligence techniques (machine learning), a control corpus is evaluated to find the best systems and parameters. Once this evaluation has been undertaken, a large group of plays is analyzed to try to obtain results that can illuminate some real problems of authorship and dating in relation …

"Not Just Whites In Appalachia": The Black Appalachian Commission, Regional Black Power Politics, And The War On Poverty, 1965-1975, Jillean Mccommons

Theses and Dissertations--History

During the Black Power era of the late 1960s and 1970s, Black activists in Appalachia used the opening of the War on Poverty to wage a regional war against institutional and environmental racism. Through the Black Appalachian Commission, a grassroots organization created in 1969, Black activists worked to expose racism in local and federal policy as the root cause of poverty for Black Appalachians, who they argued were the poorest in the region. Their outward self-definition as Black and Appalachian was a political strategy to garner power over resources earmarked for Appalachians. The term “Black Appalachian'' was more than a …

Colonial Contraception: American Birth Control Advocates And Their Work In Appalachia, Puerto Rico, And India; 1930-1970, Dana Johnson

Theses and Dissertations--History

By the beginning of the twentieth century, the development of better contraceptives and changing cultural attitudes led to an increased interest in contraceptive research. Although major political, legal, social, religious, and cultural obstacles remained, birth control advocates began to perform clinical trials to identify effective contraceptives and to disseminate contraceptive information. These trials began in the United States, but birth control advocates quickly introduced them into other areas. In this dissertation, I examine the research efforts of the American birth control movement through an analysis of the activities and discourse of its key advocates and promoters during the middle decades …

Geometric Properties Of Weighted Projective Space Simplices, Derek Hanely

Theses and Dissertations--Mathematics

A long-standing conjecture in geometric combinatorics entails the interplay between three properties of lattice polytopes: reflexivity, the integer decomposition property (IDP), and the unimodality of Ehrhart h*-vectors. Motivated by this conjecture, this dissertation explores geometric properties of weighted projective space simplices, a class of lattice simplices related to weighted projective spaces.

In the first part of this dissertation, we are interested in which IDP reflexive lattice polytopes admit regular unimodular triangulations. Let Delta_(1,q)denote the simplex corresponding to the associated weighted projective space whose weights are given by the vector (1,q). Focusing on the case where Delta …

Batch Normalization Preconditioning For Neural Network Training, Susanna Luisa Gertrude Lange

Theses and Dissertations--Mathematics

Batch normalization (BN) is a popular and ubiquitous method in deep learning that has been shown to decrease training time and improve generalization performance of neural networks. Despite its success, BN is not theoretically well understood. It is not suitable for use with very small mini-batch sizes or online learning. In this work, we propose a new method called Batch Normalization Preconditioning (BNP). Instead of applying normalization explicitly through a batch normalization layer as is done in BN, BNP applies normalization by conditioning the parameter gradients directly during training. This is designed to improve the Hessian matrix of the loss …

Tropical Geometry Of T-Varieties With Applications To Algebraic Statistics, Joseph Cummings

Theses and Dissertations--Mathematics

Varieties with group action have been of interest to algebraic geometers for centuries. In particular, toric varieties have proven useful both theoretically and in practical applications. A rich theory blending algebraic geometry and polyhedral geometry has been developed for T-varieties which are natural generalizations of toric varieties. The first results discussed in this dissertation study the relationship between torus actions and the well-poised property. In particular, I show that the well-poised property is preserved under a geometric invariant theory quotient by a (quasi-)torus. Conversely, I argue that T-varieties built on a well-poised base preserve the well-poised property when the base …

The V1-Periodic Region In Complex Motivic Ext And A Real Motivic V1-Selfmap, Ang Li

Theses and Dissertations--Mathematics

My thesis work consists of two main projects with some connections. In the first project we establish a v₁ periodicity theorem in Ext over the complex motivic Steenrod algebra. The element h₁ of Ext, which detects the homotopy class \eta in the motivic Adams spectral sequence, is non-nilpotent and therefore generates h₁-towers. Our result is that, apart from these h₁-towers, v₁ periodicity operators give isomorphisms in a range near the top of the Adams chart. This result generalizes well-known classical behavior.

In the second project we consider a nontrivial action of C_{2 …}

The Role Of Sexual Difference In Plato's Timaeus, Mary Cunningham

Theses and Dissertations--Philosophy

My dissertation is a reading of Plato’s Timaeus that centers sexual difference and in particular femininity. I analyze the role of sexual difference in the framing of the dialogue as well as its accounts of body in the first and second discourse and its account of health in the third discourse. I argue that sexual difference, and, in particular, sexual reproduction, serves as a guiding paradigm of Timaeus’ entire project. I argue in each part of my dissertation that various aspects of the Timaeus depend on a certain notion of sexual difference—even aspects which are seemingly causally prior to the …