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2023

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Evaluating Contextual Factors Surrounding Romantic Infidelity And Reentry Support For Prisoners Using Behavior Analytic Research Methods, Maggie K. Adler Jan 2023

Evaluating Contextual Factors Surrounding Romantic Infidelity And Reentry Support For Prisoners Using Behavior Analytic Research Methods, Maggie K. Adler

Graduate Theses/Dissertations

Translational research combines application of fundamental principles with the concern for everyday issues and outcomes, which makes it possible to use translational research to address these societal issues (Mace and Critchfield, 2010). This thesis combines and discusses two multi-authored manuscripts centered around translational research. In the first manuscript, participants completed a probability discounting task developed by the experimenters under the hypothetical situation of being in a relationship with moderate or low satisfaction. In the task, participants chose to cheat or not cheat on their partner as a function of the subjective attractiveness of the non-partner and the probability of getting …

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Morphological And Genetic Analysis Of The Root System In Two American Grapevines (Vitis Species), Parinaz Mohtasebi Jan 2023

Morphological And Genetic Analysis Of The Root System In Two American Grapevines (Vitis Species), Parinaz Mohtasebi

Graduate Theses/Dissertations

The North American grapes species Vitis rupestris Scheele and Vitis riparia Michx have been the pillars of rootstock breeding for many decades. Though a large body of viticultural knowledge has been accumulated on their impact on grafted scions, the genetic basis of their root system architecture (RSA) has received limited scientific attention. In this study, I generated and analyzed adventitious root systems from dormant cuttings of 22 V. riparia and 19 V. rupestris accessions, as well as 162 interspecific F1 hybrid progeny from a cross between V. rupestris (♀) and V. riparia (♂). I photographed the roots and then extracted …

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Magmatic Evolution Of The Chasca Orkho Lava Series And Its Magmatic Enclaves, Volcán Ollagüe, Central Andes, Nathaniel W. Lenhard Jan 2023

Magmatic Evolution Of The Chasca Orkho Lava Series And Its Magmatic Enclaves, Volcán Ollagüe, Central Andes, Nathaniel W. Lenhard

Graduate Theses/Dissertations

Magma mixing is a common factor in the creation of intermediate composition magmas and a potential instigator of a volcanic eruption. Magmatic enclaves, physical evidence of magma mixing within a volcanic system, are a phenomenon whose mechanisms remain unclear and debated. Common hypotheses explaining the occurrence of magmatic enclaves within a host lava range from the repeated injection of a new magma into a shallow reservoir to the disruption of equilibrium within a stratified magma chamber. Within the Andean Central Volcanic Zone (CVZ), the occurrence of magmatic enclaves yields similar geochemical compositions to their respective host rocks, bringing more difficulty …

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Thawing Interests: The Arctic In U.S. Grand Strategy, Benjamin S. Murray Jan 2023

Thawing Interests: The Arctic In U.S. Grand Strategy, Benjamin S. Murray

Graduate Theses/Dissertations

The thawing Arctic is subject to increasing activity, attention, and a renewal of interests in the region from around the globe. National interests have compelled strategic planning in the Arctic region and are connected to global geopolitics. A concept of grand strategy is distilled from theories of past authors, understood within the modern context. That concept includes a terminological framework consisting of interests and threats to inform an ends, ways, and means design of strategy, composed of all instruments of state power, blending policy with strategy, and across the peace-war continuum. Then fundamental precepts of existing U.S. grand strategy are …

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Renewable Fuels: Molecular Dynamics Investigations Into Pyrolysis Of Methyl Linoleate, Elson Osakpolor Eguaosa Jan 2023

Renewable Fuels: Molecular Dynamics Investigations Into Pyrolysis Of Methyl Linoleate, Elson Osakpolor Eguaosa

Graduate Theses/Dissertations

With the rapid depletion of the world’s supply of fossil fuels, especially petroleum products, petroleum prices have risen by approximately 800% between the 1970s and now and are projected to continue rising. It is also expected that the world’s consumption of energy will increase commensurate with its growing population. Although biodiesel is a good renewable alternative, it has its limitations including high production costs and poor low-temperature performance. We seek to improve conventional biodiesel with pyrolysis to produce low molecular-weight compounds with high energy densities. Understanding the pyrolysis path on the atomic scale is key as it will allow us …

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Geometric Dissections, Daniel Robert Martin Jan 2023

Geometric Dissections, Daniel Robert Martin

Graduate Theses/Dissertations

In the study of geometry, the notion of dissection and its mechanics are occasionally over-looked. We consider and trace the history and theorems surrounding geometric dissections in both recreational and academic mathematics. We explore the important advancements in this particular topic from antiquity through the nineteenth and early twentieth centuries. We conclude with an exploration of the Banach-Tarski paradox

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Evaluation Of Different Machine Learning, Deep Learning And Text Processing Techniques For Hate Speech Detection, Nabil Shawkat Jan 2023

Evaluation Of Different Machine Learning, Deep Learning And Text Processing Techniques For Hate Speech Detection, Nabil Shawkat

Graduate Theses/Dissertations

Social media has become a domain that involves a lot of hate speech. Some users feel entitled to engage in abusive conversations by sending abusive messages, tweets, or photos to other users. It is critical to detect hate speech and prevent innocent users from becoming victims. In this study, I explore the effectiveness and performance of various machine learning methods employing text processing techniques to create a robust system for hate speech identification. I assess the performance of Naïve Bayes, Support Vector Machines, Decision Trees, Random Forests, Logistic Regression, and K Nearest Neighbors using three distinct datasets sourced from social …

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Recent Climate Change Influence On Flood Magnitude And Frequency, Channel Widening, And Bar Deposition In Big River, Missouri Ozarks, Patrick Saulys Jan 2023

Recent Climate Change Influence On Flood Magnitude And Frequency, Channel Widening, And Bar Deposition In Big River, Missouri Ozarks, Patrick Saulys

Graduate Theses/Dissertations

Climate and land use can control the flood regime of a river and regulate channel form and size over periods of decades to centuries. Recent climate change has increased rainfall intensity and flood magnitude/frequency in many watersheds in the midwestern United States. Thus, river channels affected by more frequent and larger floods are expected to respond by increasing width (or depth) by fluvial erosion to accommodate larger peak discharges. This hypothesis was evaluated along 186 km of the Big River in southeast Missouri by analysis of historical aerial photography, precipitation studies, and United States Geological Survey (USGS) flow gage records. …

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The Rhetorical Use Of The Other: An Analysis Of Symbolic Disability In Contemporary Horror Films, Seth Hadley Jan 2023

The Rhetorical Use Of The Other: An Analysis Of Symbolic Disability In Contemporary Horror Films, Seth Hadley

Graduate Theses/Dissertations

In this research, I examine the concept of the Other in horror films. I use Kenneth Burke’s identification, Jean-Francois Lyotard’s metanarrative concept, and Lennard Davis’s bell curve of normalcy to describe the Other and how otherness relates to disability. First, I discuss how horror films have portrayed the Other historically in a negative context and slowly transition to the virtuous Other, the final girl. Next, I discuss the trend of portraying disability or otherness as an asset or tool in contemporary films like A Quiet Place, Birdbox, and Don’t Breathe. Then, I examine how current horror films explore the implications …

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Bimee: Blockchain Based Incentive Mechanism Considering Endowment Effect, Jayanth Madupalli Jan 2023

Bimee: Blockchain Based Incentive Mechanism Considering Endowment Effect, Jayanth Madupalli

Graduate Theses/Dissertations

Crowdsensing, a paradigm in modern data collection, harnesses the collective power of mobile users equipped with sensory devices to contribute valuable data based on task-specific criteria. The efficacy of crowdsensing relies on sustained engagement from proficient users over extended periods. Incentivizing long-term participation is crucial, and blockchain technology emerges as a promising framework, providing a decentralized and immutable ledger. However, existing blockchain-based incentive mechanisms for crowdsensing encounter challenges. Firstly, they often overlook users' inherent bias towards loss aversion, a psychological phenomenon where individuals prioritize avoiding losses over acquiring equivalent rewards. Secondly, fairness issues arise, especially concerning newly participating users in …

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Centrifugation Cushion Vs. Spermfilter™: Effects On % Recovery, Holly S. Hopkins Jan 2023

Centrifugation Cushion Vs. Spermfilter™: Effects On % Recovery, Holly S. Hopkins

Graduate Theses/Dissertations

It has been demonstrated that removing seminal plasma and resuspension of the sperm pellet in various diluents will improve the post-storage motility of spermatozoa from some stallions. This typically involves centrifugation. However, a sperm filtering device marketed by Botupharma (Phoenix, AZ) allows seminal plasma removal without a centrifuge. This study compared spermatozoa recovery rates using this device vs. centrifugation with and without a cushion. Thirteen ejaculates were collected from three quarter horse stallions. Prior to treatment, aliquots were diluted with Dulbecco's modified PBS at a dilution rate of 1:1. For the two centrifugation treatments, 12 ml of the diluted semen …

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Continuity And Contrast In The Strategic Theories Of Four Classic Strategic Thinkers: Sun Tzu, Thucydides, Machiavelli, And Clausewitz, Morteza Safari Jan 2023

Continuity And Contrast In The Strategic Theories Of Four Classic Strategic Thinkers: Sun Tzu, Thucydides, Machiavelli, And Clausewitz, Morteza Safari

Graduate Theses/Dissertations

The purpose of this research paper is to examine the thinking of four classic strategic theorists, namely Sun Tzu, Thucydides, Niccolò Machiavelli, and Carl von Clausewitz, and explore continuity and contrast in their strategic theories. In doing so, this author has structured the paper based on the fundamental architecture of strategy, that is, ends, ways and means. Since the paper specifically addresses military strategy, it first investigates what the ideas of the four theorists are on war as the military means. Then, the paper will explore the theorists’ thoughts on different strategic approaches as ways. Then, the essay will delve …

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Investigating The Structural Properties Of Licoo2 Through Annealing In A Reducing Atmosphere And Characterization Using Raman Spectroscopy And X-Ray Diffraction, Mathew A. Boeser Jan 2023

Investigating The Structural Properties Of Licoo2 Through Annealing In A Reducing Atmosphere And Characterization Using Raman Spectroscopy And X-Ray Diffraction, Mathew A. Boeser

Graduate Theses/Dissertations

The electrochemical performance of lithium cobalt oxide (LiCoO2) cathode materials in lithium-ion batteries is strongly influenced by their structural and chemical characteristics. Annealing in a reducing atmosphere is able to modify the crystal structure of LiCoO2 by inducing oxygen vacancies, ideally enhancing its electrochemical performance. This master's thesis presents an investigation into the effects of low to mid-range annealing temperatures in a reducing atmosphere on bulk LiCoO2 powder, utilizing Raman spectroscopy and X-ray Diffraction (XRD).

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Exploration And Synthesis Of Half-Heusler And Disordered Ternary Intermetallic Single Crystals, Md Fahel Bin Noor Jan 2023

Exploration And Synthesis Of Half-Heusler And Disordered Ternary Intermetallic Single Crystals, Md Fahel Bin Noor

Graduate Theses/Dissertations

Due to their distinct physical and chemical characteristics, half-Heusler compounds are intermetallic materials that have undergone substantial research. The general formula for these compounds is XYZ, where X and Y are transition metals and Z is a p-block element. Thermoelectricity is among the half-Heusler compounds' most exciting potential uses, but additional possible applications include spintronics, magnetic refrigeration, and superconductivity, among others. Recently, half-Heuslers (and Heuslers) have emerged as candidates for catalysts for hydrogenation. The CoNbSn half-Heusler compound, as well as another unique intermetallic ternary compound, the disordered Mn4-xCrxAl11, were successfully grown as single crystals …

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Proton Beam Therapy And Photon-Based Magnetic Resonance Image-Guided Radiation Therapy: The Next Frontiers Of Radiation Therapy For Hepatocellular Carcinoma, Michael Chuong Jan 2023

Proton Beam Therapy And Photon-Based Magnetic Resonance Image-Guided Radiation Therapy: The Next Frontiers Of Radiation Therapy For Hepatocellular Carcinoma, Michael Chuong

All Publications

External beam radiation therapy (EBRT) has increasingly been utilized in the treatment of hepatocellular carcinoma (HCC) due to technological advances with positive clinical outcomes. Innovations in EBRT include improved image guidance, motion management, treatment planning, and highly conformal techniques such as intensity-modulated radiation therapy (IMRT) and stereotactic body radiation therapy (SBRT). Moreover, proton beam therapy (PBT) and magnetic resonance image-guided radiation therapy (MRgRT) have expanded the capabilities of EBRT. PBToffers the advantage of minimizing low- and moderate-dose radiation to the surrounding normal tissue, thereby preserving uninvolved liver and allowing for dose escalation. MRgRT provides the advantage of improved soft tissue …

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Gender Representation In Children's Media And Preschool-Aged Girls’ Internalized Beliefs About Gender, Jessica Lindsey Kanne Atkins Jan 2023

Gender Representation In Children's Media And Preschool-Aged Girls’ Internalized Beliefs About Gender, Jessica Lindsey Kanne Atkins

Graduate Theses/Dissertations

The current study examines patterns of gender representation through three categories (distribution, presentation, and stereotyped behaviors) in children’s media and how these patterns relate to preschool-aged girls’ internalized beliefs about gender. Both historical and presently available children’s media tends to display high levels of stereotypical gender representation. By preschool age, children have already developed distinctions between boys and girls, and hold internalized beliefs regarding gender. The objective of the current study is to examine the relationship between these two factors. To accomplish this, preschool-aged girls were interviewed to assess their internalized beliefs about gender. Their caregivers completed questionnaires related to …

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Auto-Exploited: Narrative Explorations Of The Commodification Of Time, Grace C. Willis Ms. Jan 2023

Auto-Exploited: Narrative Explorations Of The Commodification Of Time, Grace C. Willis Ms.

Graduate Theses/Dissertations

This thesis is an exploration of the phenomenon of the auto-exploitation of the modern individual through and in conjunction with the commodification of time. It explores the eruption of gig-work in recent decades in the United States, and the ways in which the modern individual is both consumer and product, buying and selling her own constructions of identity in order to gain time, fiscal currency and a sense of socioeconomic worth from herself and others. Using theoretical frameworks of Karl Marx, Michel Foucault, Judith Butler, Catherine Rottenberg and Byung-Chul Han, I explore the ways in which the modern individual is …

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