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2019

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Analyzing Pre-Inhumation Breakage Ceramics At Lamanai, Belize: A Conjunctive Approach, Ryan Enger Jan 2019

Analyzing Pre-Inhumation Breakage Ceramics At Lamanai, Belize: A Conjunctive Approach, Ryan Enger

Electronic Theses and Dissertations

During the Terminal Classic period (9th-10th centuries A.D.), the ancient Maya at Lamanai, Belize, began to practice pre-inhumation breakage of ceramics in mortuary contexts. Previously, the custom had been to bury whole vessels with the deceased. This conspicuous shift in behavior suggests important changes in beliefs regarding the role of ceramics in death and interment at a pivotal moment in ancient Maya culture history. Despite this significant change, there has been no published research conducted specifically on these vessels. In fact, there has been no clearly delineated set of characteristics for what qualifies as a pre-inhumation breakage vessel (PBV). This …

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Fear And Loathing In The Super Organism: Foraging Strategy Doesn't Change Forager Response In A Landscape Of Fear., Philip Schadegg Jan 2019

Fear And Loathing In The Super Organism: Foraging Strategy Doesn't Change Forager Response In A Landscape Of Fear., Philip Schadegg

Electronic Theses and Dissertations

Understanding how predators impact keystone species, like ants, is very important for our understanding of ecology because of ants' importance in shaping community dynamics and ecosystem functions. In this thesis I present research investigating the role of the ant-specialized spider Anasaitis canosa in influencing the foraging behavior of four ant species (Formica pallidefulva, Odontomachus ruginodis, Pheidole obscurithorax & Solenopsis invicta). Collectively, these four species use foraging strategies exhibited by most ants. I conducted two experiments to quantify the impacts of spider predation on ant prey. The first used forty colonies of four ant species to investigate how A. canosa changed …

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Macrolinguistic Analysis Of Discourse Production In People With Aphasia, Individuals With Mild Cognitive Impairment, And Survivors Of Traumatic Brain Injury, Stephanie Eaton Jan 2019

Macrolinguistic Analysis Of Discourse Production In People With Aphasia, Individuals With Mild Cognitive Impairment, And Survivors Of Traumatic Brain Injury, Stephanie Eaton

Electronic Theses and Dissertations

This study examined the macrolinguistic features of three genres (single picture description, sequential picture description, and story retell) of discourse samples collected from participants with acquired communication disorders (including two speakers with aphasia, two with mild cognitive impairment, and two with traumatic brain injury) and unimpaired controls (n=6). Comparisons were made to investigate group and genre differences. Standardized assessment scores of cognitive and linguistic evaluations were collected and correlated to features of macrolinguistic discourse analysis. Participants with acquired communication disorders performed best on the story retell discourse task compared to single picture description and sequential picture description. Significant measures for …

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Evaluating Pedagogical Methods That Influence Homework Assignment Completion, Kirk Sawyer Jan 2019

Evaluating Pedagogical Methods That Influence Homework Assignment Completion, Kirk Sawyer

Electronic Theses and Dissertations

College students enrolled in an online introductory engineering course are not completing their homework assignments at an acceptable rate which impacts them, the instructor, and the college. This research study employed a quasi-experimental evaluation model to assess the effectiveness of two pedagogical methods designed to positively influence student homework completion rates and student attitudes toward homework. Despite evidence that grading penalties encourage students to submit their homework assignments, such strategies have historically been unsuccessful for the course used in this study. The researcher designed two pedagogical interventions, along with a survey instrument, to measure the impact of the interventions on …

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The Push Out: A Disproportionality Study On Discipline In The State Of Florida, Manouchka Pierre Jan 2019

The Push Out: A Disproportionality Study On Discipline In The State Of Florida, Manouchka Pierre

Electronic Theses and Dissertations

This mixed method sequential exploratory study was conducted to emphasize and investigate disproportionality in discipline, noting the prevalence of the issue of equity and the salience of FL as context. This study applied the extant model for investigating disproportionality in a setting where such an investigation is highly relevant due to Florida's statistical positioning in the area of student discipline. This study investigated for potential biases that guide differences in the rates that males and Blacks experience exclusionary discipline within the 67 regular school districts. The analysis from this study, which used relative rate ratio and policy analysis, presents results …

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Computational Imaging Systems For High-Speed, Adaptive Sensing Applications, Yangyang Sun Jan 2019

Computational Imaging Systems For High-Speed, Adaptive Sensing Applications, Yangyang Sun

Electronic Theses and Dissertations

Driven by the advances in signal processing and ubiquitous availability of high-speed low-cost computing resources over the past decade, computational imaging has seen the growing interest. Improvements on spatial, temporal, and spectral resolutions have been made with novel designs of imaging systems and optimization methods. However, there are two limitations in computational imaging. 1), Computational imaging requires full knowledge and representation of the imaging system called the forward model to reconstruct the object of interest. This limits the applications in the systems with a parameterized unknown forward model such as range imaging systems. 2), the regularization in the optimization process …

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Reexamining The Relationship Between Divided Government And Voter Turnout, Heidi Beck Jan 2019

Reexamining The Relationship Between Divided Government And Voter Turnout, Heidi Beck

Electronic Theses and Dissertations

This thesis reexamines the effect of divided government on voter turnout originally posited by Franklin and Hirczy de Miño (1998), which suggested that each year of exposure to divided government resulted in a cumulative negative effect on voters leading to alienation and lower turnout. It reconsiders this argument using more recent data, given that voter turnout in U.S. presidential elections (as measured by the Voting Eligible Population) has increased since 2000, even though divided government has occurred during this period. This thesis also uses new data and methods to address concerns about the original aggregate level research design. The research …

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Utilizing Geographic Information Systems To Record And Analyze Osteoarthritis Data In Joints Of The Arm: A Methodology For Dry Bones, Adam Biernaski Jan 2019

Utilizing Geographic Information Systems To Record And Analyze Osteoarthritis Data In Joints Of The Arm: A Methodology For Dry Bones, Adam Biernaski

Electronic Theses and Dissertations

Osteoarthritis (OA) is one of the most common pathologies encountered in dry bone contexts. However, even with the wealth of publications on documenting the presence of OA from skeletons, these studies prove to be largely incomparable due to different scoring methodologies and procedures in calculating prevalence. The standardization of a new OA data collection procedure would mitigate variability in evaluating, scoring, and calculating the prevalence of OA, thus allowing accurate comparison between studies. However, this level of data collection has often been described as unwieldy and lacking concordance. This research outlines a new methodology that utilizes Geographic Information Systems (GIS) …

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Partnering With Paraprofessionals: Expanding Preschool Children's Responses Through Dialogic Reading, Juliana Hirn Jan 2019

Partnering With Paraprofessionals: Expanding Preschool Children's Responses Through Dialogic Reading, Juliana Hirn

Electronic Theses and Dissertations

Shared interactive reading is an evidence-based practice where professionals can collaborate to promote literacy and language skills in young children. Providing children with developmental disabilities (DD) the opportunity to gain language and preliteracy skills in early intervention is critical for their development as they are at a higher risk for falling behind in academics compared to their age-matched peers. This study evaluated the effectiveness of dialogic reading (DR) for children with DD. DR has been shown to be an effective strategy to teach typically developing preschool-aged children vocabulary, language, and literacy skills, however research in children with DD is limited. …

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Mapping Addiction: A Digital Psychogeographic Approach To America's Addiction Epidemic, Clayton Benjamin Jan 2019

Mapping Addiction: A Digital Psychogeographic Approach To America's Addiction Epidemic, Clayton Benjamin

Electronic Theses and Dissertations

Focusing on policy consultation, my dissertation consults on the current US addiction epidemic and aims to answer, "What is our disposition to addiction?" Borrowing and clarifying Ulmer's MEmorial method, as established in his text Electronic Monuments, the dissertation combines the ancient Greek practice of theoria, Deleuzian theory, and psychogeographic counter-mapping methods to trace ways in which ideological apparatuses construct addiction. The aim of the dissertation is to reveal an abject value by constructing MEmorials which provide space for individuals to mourn loss and see their relation to that loss. Through mourning, individuals strengthen their ties to other community members and …

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Assessing The Effects Of Habitat And Manatee Exclusion Devices On Red Drum (Sciaenops Ocellatus) Movement Patterns In Estuarine Impoundments, Steven Baker Jan 2019

Assessing The Effects Of Habitat And Manatee Exclusion Devices On Red Drum (Sciaenops Ocellatus) Movement Patterns In Estuarine Impoundments, Steven Baker

Electronic Theses and Dissertations

The Integrate-Transfer-Launch (ITL) complex impoundments located within the Kennedy Space Center security zone are known spawning sites for red drum (Sciaenops ocellatus). However, recent construction of manatee exclusion bollards around culverts leading into these impoundments may impede movement to and from this critical habitat. The goals of this study were to: 1) utilize passive acoustic telemetry to document patterns of red drum movement and habitat use within and around the ITL impoundments to assess how manatee exclusion bollards and environmental conditions may impact movement of red drum; and 2) explore red drum movement in response to environmental disturbance, specifically a …

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Optical Sensing Of Structural Dynamics In Complex Media, Jose Rafael Guzman Sepulveda Jan 2019

Optical Sensing Of Structural Dynamics In Complex Media, Jose Rafael Guzman Sepulveda

Electronic Theses and Dissertations

Quantifying the structural dynamics of complex media is challenging because of the multiple temporal and spatial scales involved. Thanks to the ability to retrieve collective dynamics noninvasively, light scattering-based approaches are often the methods of choice. This dissertation discusses specific features of dynamic light scattering that utilizes spatio-temporal coherence gating. It is demonstrated that this optical fiber-based approach can operate over a large range of optical regimes and it has a number of unique capabilities such as an effective isolation of single scattering, a large sensitivity, and a high collection efficiency. Moreover, the approach also provides means for proper ensemble …

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Synthesis And Bioevaluation Of Methionine Depletion Agents, Houssine Ikhlef Jan 2019

Synthesis And Bioevaluation Of Methionine Depletion Agents, Houssine Ikhlef

Electronic Theses and Dissertations

The native polyamines (putrescine, spermidine, and spermine) are low molecular weight amines that exist as polycations at physiological pH. These polycations interact with DNA, RNA, and influence many cellular processes. Intracellular polyamine levels are maintained via a balance of polyamine biosynthesis, catabolism, and transport. Ornithine, an amino acid obtained from L-arginine, is decarboxylated by ornithine decarboxylase (ODC) to form putrescine. The biosynthesis of the higher polyamines, spermidine and spermine, requires the addition of an amino-propyl group donated by decarboxylated S-adenosylmethionine (dc-SAM), which itself is derived from the amino acid L-methionine (Met). Tumor cells are heavily reliant on methionine because it …

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Lifetime History Of Concussions And Behavioral Measures Of Anhedonia, John O'Donnell Jan 2019

Lifetime History Of Concussions And Behavioral Measures Of Anhedonia, John O'Donnell

Electronic Theses and Dissertations

Concussions are the most common neuropsychological problem in the United States and are associated with sequelae such as cognitive complaints and depression-related symptoms. Recent research suggests that head trauma is associated with anhedonia and that concussions have the potential to damage axons and postsynaptic connections in neural circuits that play a role in reward processing. Anhedonia may be better understood as an overarching construct with multiple subtypes including motivational, decisional, and consummatory. The current study examines the relationship between lifetime concussion history and subtypes of anhedonia using behavioral measures of reward processing: the Effort Expenditure for Rewards Task (EEfRT), Probabilistic …

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Do Global Cities Make Green Cities? How Global Governance Impacts Transportation In Bogotá And Medellín, Eleanor Jackson Jan 2019

Do Global Cities Make Green Cities? How Global Governance Impacts Transportation In Bogotá And Medellín, Eleanor Jackson

Honors Theses

This thesis examines how global and local governance has combined to deliver effective and sustainable public transportation in cities by comparing Bogotá’s bus rapid transit (BRT) system, TransMilenio, with Medellín’s mass transit system, STIMVA, often referred to as Metro de Medellín. After considering the rationales used to justify local and global authority over climate change, this analysis problematizes the supposed benefits of empowering global and local actors by highlighting the conflicts of interest that plague the elites who mediate the global and the local. In analyzing the global and local interactions, this work draws from extensive literature to highlight three …

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Human Action Recognition In Videos Using Transfer Learning, Kaiqiang Huang, Sarah Jane Delany, Susan Mckeever Jan 2019

Human Action Recognition In Videos Using Transfer Learning, Kaiqiang Huang, Sarah Jane Delany, Susan Mckeever

Session 1: Active Vision, Tracking, Motion Analysis

A variety of systems focus on detecting the actions and activities performed by humans, such as video surveillance and health monitoring systems. However, published labelled human action datasets for training supervised machine learning models are limited in number and expensive to produce. The use of transfer learning for the task of action recognition can help to address this issue by transferring or re-using the knowledge of existing trained models, in combination with minimal training data from the new target domain. Our focus in this paper is an investigation of video feature representations and machine learning algorithms for transfer learning for …

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Exogenous Shocks And Political Unrest, Didara Nurmanova Jan 2019

Exogenous Shocks And Political Unrest, Didara Nurmanova

Electronic Theses and Dissertations

This dissertation explores the role of exogenous shocks such as economic shocks and natural disasters in producing political unrest in the form of anti-government protests and ethnic riots. It is integrated by three articles, each covering a different topic. The first article argues that economic shocks play a crucial role in protest mobilization in rentier states conditional on weaker repressive capacity or higher taxation. Empirically, it conducts a cross-national study of high resource-dependent states in the period of 1995-2014. The second article contends that there is a variation in the degree to which a country's regions are exposed to economic …

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An Investigation Of Science Of Reading And Learning Representation In Undergraduate Elementary Education Reading Courses In The State University System Of Florida, Jessica Camara Jan 2019

An Investigation Of Science Of Reading And Learning Representation In Undergraduate Elementary Education Reading Courses In The State University System Of Florida, Jessica Camara

Electronic Theses and Dissertations

This study investigated the extent to which the science of reading instruction components and five science of learning principles were addressed in undergraduate elementary education required reading courses in the State University System (SUS) of Florida institutions. A document analysis of textbooks and syllabi was completed and evidence recorded in The Matrix for State University System (SUS) of Florida Scoring©. The results were reported in summary tables and an analysis of the data was conducted on the extent to which each science of reading component and science of learning principle were labeled explicitly, indirectly stated, or not present in syllabi …

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National Security And Political Polarization, Joseph Funderburke Jan 2019

National Security And Political Polarization, Joseph Funderburke

Electronic Theses and Dissertations

This dissertation explores how partisan polarization among the political elites (the President and key Members of Congress) impacts national security decision-making. The research examines the relationship over time beginning at the start of the Cold War through 2014. In doing so, the research tests several hypotheses to determine the nature of the relationship and what the implications might be for future U.S. national security policy-making. There are three different approaches used in the research centered on the same theory of partisan polarization. The first approach examines changes in the level of polarization and defense budgets each year. The second explores …

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The Effects Of Presence And Cognitive Load On Episodic Memory In Virtual Environments, Paul Barclay Jan 2019

The Effects Of Presence And Cognitive Load On Episodic Memory In Virtual Environments, Paul Barclay

Electronic Theses and Dissertations

Episodic memory refers to an individual's memory for events that they have experienced in the past along with the associated contextual details. In order to more closely reflect the way that episodic memory functions in the real world, researchers and clinicians test episodic memory using virtual environments. However, these virtual environments introduce new interfaces and task demands that are not present in traditional methodologies. This dissertation investigates these environments through the lenses of Presence and Cognitive Load theories in order to unravel the ways that basic technological and task differences may affect memory performance. Participants completed a virtual task under …

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Hurricane Maria: A Qualitative Study Of Recently Displaced Students To The State Of Florida, Esmeralda Cabrera Jan 2019

Hurricane Maria: A Qualitative Study Of Recently Displaced Students To The State Of Florida, Esmeralda Cabrera

Electronic Theses and Dissertations

Over the past ten years Puerto Rico has been experiencing a severe economic crisis that was worsened when Hurricane Maria made landfall on September 20, 2017. Maria hit Puerto Rico as a category 4 storm, devastating the whole island and its 3.4 million residents. Many students were left with minimal educational choices after Hurricane Maria hit Puerto Rico. Research on Latino/a students shows that they are met with unique experiences and challenges as they pursue higher education. The current study uses qualitative data to investigate what are the unique challenges and needs of displaced students from Puerto Rico? and what …

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Motivational Factors And Barriers Affecting Seniors' Decision To Relocate To A Senior Living Facility, Suja Chaulagain Jan 2019

Motivational Factors And Barriers Affecting Seniors' Decision To Relocate To A Senior Living Facility, Suja Chaulagain

Electronic Theses and Dissertations

This study aimed to explore factors affecting seniors' intention to relocate to a senior living facility. More specifically, the purpose of this study was to examine the influence of push and pull motivational factors and perceived barriers on seniors' intention to relocate to a senior living facility (SLF). In addition, the mediating role of perceived barriers on the relationships between push motivational factors and intention to relocate and pull motivational factors and intention to relocate were explored. The data of the study was collected from 363 seniors. Structural equation modeling (SEM) analysis was conducted to test the study hypotheses. The …

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Victimization And Health Experiences For Tgnc Individuals In Women's Prisons, Kristina Davis Jan 2019

Victimization And Health Experiences For Tgnc Individuals In Women's Prisons, Kristina Davis

Electronic Theses and Dissertations

This text examines the health-related experiences of transgender and gender nonconforming persons assigned female at birth within the criminal justice system. It moves through a transgender-centric approach to explore the ways gender nonconformity relates to experiences of violence and healthcare disparities for those interacting with law enforcement and incarcerated in women's prisons. The study utilized statistical analyses of nationally representative data in the 2015 U.S. Transgender Survey carried out by the National Center for Transgender Equality. Multivariate analyses suggested significant connections between race and education and experiences of harassment and assault within the criminal justice context. There were largely mixed …

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Preservice Teachers And Perceived Stress: A Comparative Study, Kelsey Evans Jan 2019

Preservice Teachers And Perceived Stress: A Comparative Study, Kelsey Evans

Electronic Theses and Dissertations

Teachers are being pushed to the brink of burnout and leaving the profession, placing teachers' health and wellness in jeopardy (Daniels & Strauss, 2009; Maslach & Leiter, 2008; Stephenson, 2012; Vladut & Kallay, 2010; Wilkerson, 2009). Yet, it has become increasingly clear teacher stress may start prior to entering the profession (Brown & Ryan, 2003, Darling-Hammond, 2006). The researcher used a non-experimental design to evaluate the perceived stress among pre-service teachers enrolled in internship, and if the coping style of mindfulness had any correlation on self-reported stress levels. The quantitative study surveyed 332 student interns using the Perceived Stress Survey …

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Factors Contributing To Victim Employment, Victim Income Status, And Intimate Partner Violence In Jamaica, Marsha Fraser Jan 2019

Factors Contributing To Victim Employment, Victim Income Status, And Intimate Partner Violence In Jamaica, Marsha Fraser

Electronic Theses and Dissertations

Using 166 IPV police reports in Jamaica, this mixed-methods study (a) explored the utility of routine activities theory and control balance theory for explaining the relationship between victim employment and IPV; (b) explored risk factors for IPV; and (c) examined the relationships between victim employment and victim income status with IPV murder and IPV severity in the Jamaica. Content analysis of the narratives of the police reports supported both theories suggesting an integration of the two theories may be most fitting. Estrangement and infidelity emerged as bold themes. Infidelity was identified as an additional risk factor in the Jamaican context. …

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Atp Induced Molecular Disassembly Of Cytolethal Distending Toxin's B/C Heterodimer, George Huhn Jan 2019

Atp Induced Molecular Disassembly Of Cytolethal Distending Toxin's B/C Heterodimer, George Huhn

Electronic Theses and Dissertations

Cytolethal distending toxin (CDT) is a virulence factor produced by many Gram-negative bacteria, including Haemophilus ducreyi. This fastidious pathogen is the causative agent of genital cancroid. CDT is a heterotrimeric toxin with an AB2 structure consisting of a cell-binding "B" domain (CdtA + CdtC) and a catalytic "A" domain (CdtB) that has DNase activity. This toxin assembles in the bacterial periplasm that lacks ATP and is secreted into the extracellular environment. After cell binding, CDT is internalized by endocytosis and travels through the endosomes and Golgi before arriving in the endoplasmic reticulum (ER). CdtA is lost from the holotoxin before …

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Frames And Phase Retrieval, Ted Juste Jan 2019

Frames And Phase Retrieval, Ted Juste

Electronic Theses and Dissertations

Phase retrieval tackles the problem of recovering a signal after loss of phase. The phase problem shows up in many different settings such as X-ray crystallography, speech recognition, quantum information theory, and coherent diffraction imaging. In this dissertation we present some results relating to three topics on phase retrieval. Chapters 1 and 2 contain the relevant background materials. In chapter 3, we introduce the notion of exact phase-retrievable frames as a way of measuring a frame's redundancy with respect to its phase retrieval property. We show that, in the d-dimensional real Hilbert space case, exact phase-retrievable frames can be of …

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It Takes Two To Tango: The Toxin-Chaperone Relationship, Alisha Kellner Jan 2019

It Takes Two To Tango: The Toxin-Chaperone Relationship, Alisha Kellner

Electronic Theses and Dissertations

Cholera toxin (CT) enters the cell via receptor-mediated endocytosis and travels in a retrograde fashion to the endoplasmic reticulum (ER). The catalytic A1 subunit (CTA1) is then displaced from the rest of the holotoxin, unfolds, and is exported to the cytosol where it regains an active conformation for the ADP-ribosylation of its G-protein target. We have shown that the cytosolic chaperones Hsp90 and Hsc70 are required for CTA1 translocation to the cytosol. We have also shown that both are able to independently bind and refold CTA1. Using libraries of CTA1-derived peptides, we have identified a single Hsc70 binding site, YYIYVI …

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Holographic Optical Elements For Visible Light Applications In Photo-Thermo-Refractive Glass, Fedor Kompan Jan 2019

Holographic Optical Elements For Visible Light Applications In Photo-Thermo-Refractive Glass, Fedor Kompan

Electronic Theses and Dissertations

This dissertation reports on design and fabrication of various optical elements in Photo-thermo-refractive (PTR) glass. An ability to produce complex holographic optical elements (HOEs) for the visible spectral region appears very beneficial for variety of applications, however, it is limited due to photosensitivity of the glass confined within the UV region. First two parts of this dissertation present two independent approaches to the problem of holographic recording using visible radiation. The first method involves modification of the original PTR glass rendering it photosensitive to radiation in the visible spectral region and, thus, making possible the recording of holograms in PTR …

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Defining Effective Teacher Practices Among Students With Emotional Behavioral Disabilities, Zerek Mayes Jan 2019

Defining Effective Teacher Practices Among Students With Emotional Behavioral Disabilities, Zerek Mayes

Electronic Theses and Dissertations

This phenomenological study examined the lived experiences of special education teachers who worked with students with emotional behavioral disabilities (EBD) across various urban settings and educative environments. Given that the overall percentage of students receiving special education services has increased, the overall percentage of students with EBD served among all school-aged children and youth has remained below 1% (U.S. Department of Education, National Center for Education Statistics, 2018). The current failings of reform efforts to improve the academic achievement of students with EBD brings the roles, responsibilities and practices of teachers and their preparation into view. This study examined the …

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