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Death Like Dreaming, Junli Song
Death Like Dreaming, Junli Song
Graduate Theses and Dissertations
This written dissertation accompanies my thesis exhibition, Death Like Dreaming, which took place in Sculpture Gallery in the spring of 2023. This show was the culmination of my MFA at the University of Arkansas and centered around my most recent zhenmushou sculpture. I began making these mythical beings from my mythology in the summer of 2022. This essay will provide theoretical, historical, and personal context to the work, expanding upon my artistic journey and exploration during my degree. I will focus on my conceptual and formal decision making, areas of research, and discuss the world building and personal mythology that …
Biochar As A Lake Management Option For Harmful Algal Blooms: Lab Experiments And Bioassays, Brittany Mc Intyre
Biochar As A Lake Management Option For Harmful Algal Blooms: Lab Experiments And Bioassays, Brittany Mc Intyre
Graduate Theses and Dissertations
Harmful Algal Blooms (HABs) are an increasing global concern for water management due to their increased frequency, distribution, and toxin production. In freshwaters the growth of cyanobacteria (commonly known as blue-green algae), due to anthropogenic nutrient enrichment is the primary driver of HABS; these are often referred to as cyanoHABs. The management of cyanoHABs should be focused on in the watershed through best management and conservation practices or the physical, chemical and biomanipulation of the lake or reservoir that is experiencing these blooms. In this study, we examine the use of biochar as an option for the management or treatment …
Improving Tribological Properties Of Polydopamine/Polytetrafluoroethylene Coatings Through Incorporating Core-Shell Nanoparticles And Laser Surface Texturing, Firuze Soltani-Kordshuli
Improving Tribological Properties Of Polydopamine/Polytetrafluoroethylene Coatings Through Incorporating Core-Shell Nanoparticles And Laser Surface Texturing, Firuze Soltani-Kordshuli
Graduate Theses and Dissertations
Polytetrafluoroethylene (PTFE) is a widely used polymer that has unique properties such as chemical and temperature resistance, corrosion resistance, low maintenance cost, and a very low coefficient of friction (COF). These distinctive properties have made PTFE a promising candidate for industrial applications where surfaces are in relative motion. PTFE can be utilized as a thin film solid lubricant to significantly reduce the friction between moving surfaces. However, PTFE coatings have low cohesion and poor adhesion to the substrate resulting in its low wear resistance. This fact limits the application of PTFE coatings in load-bearing situations. To address these limitations, an …
Development Of Self-Stressing Ultra High-Performance Concrete Using Expansive Chemical Admixtures, Lane Edwards
Development Of Self-Stressing Ultra High-Performance Concrete Using Expansive Chemical Admixtures, Lane Edwards
Graduate Theses and Dissertations
This study investigated the effects of expansive chemical admixtures on ultra-high performance concrete (UHPC) and self-stressing mechanisms. A literature review was performed to determine different types of expansive admixtures for feasibility of the self-prestressing concept. Ultimately it was decided that type-k cement, made by combining Komponent admixture with conventional UHPC, was the most suitable option due to its effects on wet and hardened concrete properties. Mix designs with varying amounts of Komponent were developed to test the effects the admixture had on various properties. Tested properties included, workability, compressive strength, expansion, short-term shrinkage, long-term shrinkage, and developed prestress. The development …
Personal Equation, Nicholas Hobbs
Personal Equation, Nicholas Hobbs
Graduate Theses and Dissertations
The body of this paper is a formatted version of text which exists natively on the web and is accessible at www.personalequation.art. Its non-linear narrative is meant to accompany and mirror, not describe, the artwork in the exhibition. The following two paragraphs are copied from the exhibition statement accompanying Personal Equation, which is on view in the Reading Room at the Fayetteville Public Library from April 3 to June 30, 2023: A personal equation is one that attempts to account for the inevitable role of subjectivity in scientific observations. The term was coined by astronomers in the 18th century who, …
Evaluation Of Hydrogeochemical Characteristics Of San Joaquin, Tulare, And Mojave Aquifers, Southern California, Maedeh Hassanvand
Evaluation Of Hydrogeochemical Characteristics Of San Joaquin, Tulare, And Mojave Aquifers, Southern California, Maedeh Hassanvand
Graduate Theses and Dissertations
Before making attempts to enhance and manage the quality of water, a thorough understanding of these processes is necessary since the chemical quality of groundwater is impacted by a number of linked processes. This would be more important in arid and semiarid regions like the southern part of California where more rely on groundwater for agriculture and drinking water uses than the other states. As a result, fundamental knowledge of the governing processes of groundwater chemistry is required for effective water resource management. Thus, this study is primarily concerned with three aspects in Mojave, Tulare, and San Joaquin aquifers: The …
From An Unlikely Place, Brittany Borcher
From An Unlikely Place, Brittany Borcher
Graduate Theses and Dissertations
From an Unlikely Place, a collection of eight ambitious paintings created while in residence at the University of Arkansas, examines the intersections of landscape painting, gendered gaze, feminine experience and the language of abstraction. One of the challenges I faced while working on this project was finding points of connection between verbal and visual language. As an artist, I consider where vulnerability, sensitivity and generosity intersect my work and am curious about the strange potential an individual's visual language; in my case, a concoction of abstract and figurative forms has to communicate the quality of experience. When placed together on …
Portal, M'Shinda Abdullah Broaddus
Portal, M'Shinda Abdullah Broaddus
Graduate Theses and Dissertations
Portal is a series of large-scale multimedia collages that work to show the intersections between three very different and Tim-specific imagery. The imagery utilized, and the intersections highlighted aim to acknowledge a deep cultural history of how black men have been stripped of their personhood in visual media, and how that history has negatively impacted/impacts the way that black men are able to exist in reality.
Failure To Appear, Trent Harlan Bozeman
Failure To Appear, Trent Harlan Bozeman
Graduate Theses and Dissertations
Failure To Appear is a series of photographs and collaged works that explores my layered connections between memory, unknown legacies, and knowledge of self. This body of work is not tied to any location or specific event. It is attributed to my returning to the South, returning to the institution, returning to my childhood residence and the perceived agnosia that occurred while working on a long-term project based in the Arkansas Delta.
Evaluation Of Rice Stink Bug, Oebalus Pugnax (F.), Resistance To Lambda-Cyhalothrin And The Economic Impact On Rice Grain Quality For Multiple Foliar Insecticides, Trevor Bradley Newkirk
Evaluation Of Rice Stink Bug, Oebalus Pugnax (F.), Resistance To Lambda-Cyhalothrin And The Economic Impact On Rice Grain Quality For Multiple Foliar Insecticides, Trevor Bradley Newkirk
Graduate Theses and Dissertations
Rice stink bug, (RSB), Oebalus pugnax (F.), (Fabricius 1775) is the major pest of headed rice, Oryza sativa L. in the southern rice producing states. The evaluation of current insecticides is imperative to efficient and economical RSB management for rice growers. Multiple reports of field failures with lambda-cyhalothrin have been documented since 2019. Lambda-cyhalothrin has been the standard for RSB control for the past two decades. The objective for this research was to determine if RSB is becoming resistant to lambda-cyhalothrin in Arkansas, and the most economical insecticide choice for growers with respect to RSB control and grain quality. RSB …
Stream Processor Development Using Multi-Threshold Null Convention Logic Asynchronous Design Methodology, Wassim Khalil
Stream Processor Development Using Multi-Threshold Null Convention Logic Asynchronous Design Methodology, Wassim Khalil
Graduate Theses and Dissertations
Decreasing transistor feature size has led to an increase in the number of transistors in integrated circuits (IC), allowing for the implementation of more complex logic. However, such logic also requires more complex clock tree synthesis (CTS) to avoid timing violations as the clock must reach many more gates over larger areas. Thus, timing analysis requires significantly more computing power and designer involvement than in the past. For these reasons, IC designers have been pushed to nix conventional synchronous (SYNC) architecture and explore novel methodologies such as asynchronous, self-timed architecture. This dissertation evaluates the nominal active energy, voltage-scaled active energy, …
Effect Of Nanobubble-Oxygenated Water For Irrigation Of Sand-Based Golf Course Putting Greens, Eric Deboer
Effect Of Nanobubble-Oxygenated Water For Irrigation Of Sand-Based Golf Course Putting Greens, Eric Deboer
Graduate Theses and Dissertations
Nanobubbles (NBs) are sub-micron, stable cavities of gas. The properties of NBs theoretically allow long bubble residence times and high gas dissolution rates resulting in the supersaturation of oxygen in water. Adequate soil aeration is a constant concern for producers of agricultural and horticultural crops. Because of their unique properties, NBs have been investigated for oxygenating water used in the irrigation of various agricultural and horticultural crops to increase soil oxygen concentration. Creeping bentgrass (Agrostis stolonifera L.) is the most widely used turfgrass for golf course putting green surfaces. Golf course superintendents use various methods to increase soil oxygen in …
The Growth And Characterization Of Inn Quantum Dots Using Droplets Epitaxy In Mbe, Malak Refaei
The Growth And Characterization Of Inn Quantum Dots Using Droplets Epitaxy In Mbe, Malak Refaei
Graduate Theses and Dissertations
III-nitride semiconductor material systems offer great potential for next-generation optoelectronic devices due to their direct bandgaps, which vary from 0.7 eV (InN) to 3.5 eV (GaN) to 6.2 eV (AlN), as well as their other unique properties. InN has gained much less attention than GaN and AlN within this family of semiconductors due to its complicated low-temperature growth. However, the prediction that an InN quantum well on GaN can become a two-dimensional (2D) topological insulator has resulted in expanding the research interest in InN. At the same time, this renewed interest has begun to reveal that the formation of an …
Effects Of Land Use On Soil Microbial Communities In Tropical Montane Forests Of Malaysian Borneo, Yang Kai Tang
Effects Of Land Use On Soil Microbial Communities In Tropical Montane Forests Of Malaysian Borneo, Yang Kai Tang
Graduate Theses and Dissertations
Land use, such as logging and forest conversion to agriculture, can modify soil physicochemical and biological properties, and affect soil health. To understand how land use change can impact soil properties and canopy structure, we used a land use gradient in Malaysian Borneo consisting of six sites, including old growth forests, mixed forests, and agriculture fields. Specifically, we aimed to answer the following questions: (1) How do soil physicochemical properties vary across land use types? (2) Does bacterial diversity and composition vary across different land use types? (3) Does fungal diversity and composition vary across different land use types? We …
Insights Into Star Formation And Agn Activity In Protocluster Environments From Morphological Studies And Sed Fitting, Erik B. Monson
Insights Into Star Formation And Agn Activity In Protocluster Environments From Morphological Studies And Sed Fitting, Erik B. Monson
Graduate Theses and Dissertations
In this dissertation I present work done from 2018-2023 to investigate the growth of galaxies and supermassive black holes (SMBH) in high redshift overdensities (protoclusters) by studying the star-forming galaxy and active galactic nucleus (AGN) population in the SSA22 protocluster. I examined possible environmental sources of the enhanced star formation and AGN activity in the z = 3.09 SSA22 protocluster using Hubble WFC3 ∼ 1.6 μm observations of the SSA22 field, including new observations centered on eight X-ray selected protocluster AGN. To investigate the role of mergers in the observed AGN and star formation enhancement, quantitative and visual morphological classifications …
Dental Microwear Of Miocene Primates From The Turkana Basin Of Northern Kenya, Leah K. Myerholtz
Dental Microwear Of Miocene Primates From The Turkana Basin Of Northern Kenya, Leah K. Myerholtz
Graduate Theses and Dissertations
Comprehending the dietary patterns of Turkana Basin primates from the late Paleogene and early Neogene can contextualize the role of food choice in the evolution of higher primates in Africa. Dental Microwear Texture Analysis (DMTA) quantifies wear on the enamel of a tooth and can be used as a proxy to infer aspects of a taxon’s diet in the past. DMTA can provide insight into what specific animals in the past ate, rather than what they were capable of eating, and by extension, reflect food availability related to habitat preferences or environmental fluctuation. Here, primates from six Oligocene through Pliocene …
Facebook In County 4-H Extension Programs In Arkansas: Is It Effective For Communication?, Haley Padgett
Facebook In County 4-H Extension Programs In Arkansas: Is It Effective For Communication?, Haley Padgett
Graduate Theses and Dissertations
As social media rises in popularity, agents with 4-H responsibilities have the opportunity to implement social media platforms in their communication outreach. The purpose of this study was to identify how agents with 4-H responsibilities in Arkansas use Facebook for communication purposes and their perceptions of its effectiveness. This information helps provide understanding of the effects of Facebook on county 4-H programs in Arkansas and assists agents in determining how to implement or better utilize Facebook in their county programs. The study had three research objectives: 1) describe the usage of Facebook by agents in Arkansas with at least a …
Consumer Valuation And Preferences For Sustainably Produced Rice In Ghana, Vera Adabrah-Danquah
Consumer Valuation And Preferences For Sustainably Produced Rice In Ghana, Vera Adabrah-Danquah
Graduate Theses and Dissertations
Sustainable agricultural production is a systematic concept that integrates environmental health, economic profitability, and social/economic equity goals. Improving the sustainability of food production is of utmost importance to the human race, given the growing population and the increased depletion of natural resources. Improving sustainability is particularly important for rice, a global food staple with a significant environmental footprint. Rice accounts for 10% of global methane emissions. The Sustainable Rice Platform (SRP) standard is the first globally recognized certified sustainable production standard for rice. This study focuses on consumers' preferences for sustainable rice in Ghana, including consumers’ perceptions of different SRP's …
Living As Past In The Present, Grace Taylor
Living As Past In The Present, Grace Taylor
Graduate Theses and Dissertations
In this thesis, I will be discussing how I used my nine roles in A Christmas Carol at TheatreSquared to practice getting out of my head onstage and into the hearts of each character. I will also include the script of my original play, GORILLA, the composition and performance of which were some of the greatest challenges of my artistic career thus far. Additionally, I am including my artistic statement, show posters, program, photos, website link, headshot & resume, and proofs of permission for use of media.
Characterization Of Public Opinion On Severity Of Mental Illness And Hiv Based On Individual Traits Using Hierarchical Multi-Category Probit Models, Md Moinul Ahsan
Characterization Of Public Opinion On Severity Of Mental Illness And Hiv Based On Individual Traits Using Hierarchical Multi-Category Probit Models, Md Moinul Ahsan
Graduate Theses and Dissertations
In this thesis, we focus on modeling categorical response variables from public opinion datasets. A hierarchical probit model was used to analyze these different variables. Particularly for multinomial data, we tried different covariate settings to see the model’s performance. For that purpose, we tried two different estimation techniques. The first algorithm uses identified parameters by fixing the first diagonal element of the covariance matrix at 1. The second algorithm uses one unidentifiable parameter and subsequently identifies the parameters by fixing the trace of the covariance matrix. The results from the simulation study confirm that the trace-restricted algorithm performs better with …
On The Impact Of Inclination-Dependent Attenuation On The Derived Star Formation Histories Of Disk Galaxies, Keith Doore
On The Impact Of Inclination-Dependent Attenuation On The Derived Star Formation Histories Of Disk Galaxies, Keith Doore
Graduate Theses and Dissertations
The physical properties of a galaxy (e.g., its star-formation history and dust content) regulate the distribution of light that is emitted by stars and attenuated by the interstellar gas and dust. This attenuation by dust can have a significant impact on the observed spectral energy distribution (SED) of a disk galaxy, especially when taking into account its viewing angle (i.e., inclination). For example, as the inclination angle of a galactic disk changes from face-on to edge-on (i.e., i = 0 deg to i = 90 deg), the proportion of light that is attenuated along the line of sight increases, due …
An Investigation Of Seed Hardness And Seed Coat Color Values In Natto Soybean, Joshua Winter
An Investigation Of Seed Hardness And Seed Coat Color Values In Natto Soybean, Joshua Winter
Graduate Theses and Dissertations
Natto is a specialty fermented soyfood made from small-seeded (seeds-1) soybean varieties. Seed hardness and seed coat color are important seed traits that determine the texture and appearance of natto and are thus valuable to breeders. Prior research has identified quantitative trait loci (QTL, hereafter) for seed hardness, but its nature as a quantitative trait heavily influenced by the environment means that it is still poorly understood. Prior research has identified the primary genetic components of seed coat color using simple visual inspection, but few studies have investigated the usefulness of more quantitative measurements, such as the color space coordinates …
Advanced Cmos Process For Submicron Silicon Carbide (Sic) Device, Niloy Saha
Advanced Cmos Process For Submicron Silicon Carbide (Sic) Device, Niloy Saha
Graduate Theses and Dissertations
Silicon carbide (SiC) is a wide semiconductor material with superior material properties compared to other rival materials. Due to its fewer dislocation defects than gallium nitride and its ability to form native oxides, this material possesses an advantage among wide band gap materials. Despite having several superior properties its low voltage application is less explored. CMOS is extremely important in low voltage areas and silicon is the dominant player in it for the last 50 years where scaling has contributed a major role in this flourishment. The channel length of silicon devices has reached 3 nm whereas SiC is still …
An Age, Size, And Climate Response Study Of Old Growth Shortleaf Pine In The Mccurtain County Wilderness Area, Oklahoma, Nicholas Cancalosi-Dean
An Age, Size, And Climate Response Study Of Old Growth Shortleaf Pine In The Mccurtain County Wilderness Area, Oklahoma, Nicholas Cancalosi-Dean
Graduate Theses and Dissertations
Increment cores were extracted from 483 trees distributed over 21 semi-randomly sampled 0.1-hectare plots on three distinct landscape positions in the McCurtain County Wilderness Area (MCWA), a 57 square kilometer tract of uncut shortleaf pine in southeastern Oklahoma. Forty additional cores were taken off plot from older-appearing trees. All sampled trees were shortleaf pine (Pinus echinata) with a diameter at breast height (DBH) of at least 10 cm. Hardwoods were not included in the size and age analyses. The study site chosen for the sampling was made up of four parallel east-west trending ridges near North Linson Creek, making up …
Open Source Intelligence For Cybersecurity Events Via Twitter Data, Dakota Dale
Open Source Intelligence For Cybersecurity Events Via Twitter Data, Dakota Dale
Graduate Theses and Dissertations
Open-Source Intelligence (OSINT) is largely regarded as a necessary component for cybersecurity intelligence gathering to secure network systems. With the advancement of artificial intelligence (AI) and increasing usage of social media, like Twitter, we have a unique opportunity to obtain and aggregate information from social media. In this study, we propose an AI-based scheme capable of automatically pulling information from Twitter, filtering out security-irrelevant tweets, performing natural language analysis to correlate the tweets about each cybersecurity event (e.g., a malware campaign), and validating the information. This scheme has many applications, such as providing a means for security operators to gain …
The Relationship Between Upper Body Muscular Power And Objectively Measured Physical Function In Healthy Older Adults, Jordan Stroope
The Relationship Between Upper Body Muscular Power And Objectively Measured Physical Function In Healthy Older Adults, Jordan Stroope
Graduate Theses and Dissertations
The population of older adults is growing rapidly worldwide. There are significant challenges associated with an aging population, many of which are related to declining physical function. Muscular power has previously been postulated as an important physical characteristic for preserving physical function, however, much of the research has measured lower body muscular power against functional outcomes. The importance of upper body muscular power (UBMP) for physical function outcomes is less clear, thus, this study sought to examine that relationship. Forty-two older adults between the ages of 50 – 70 (avg = 60.5 years 5.7) were recruited for the current …
An Experimental Study Into Tholin's Solubility With Liquid Hydrocarbons On Titan, Katherine Dzurilla
An Experimental Study Into Tholin's Solubility With Liquid Hydrocarbons On Titan, Katherine Dzurilla
Graduate Theses and Dissertations
Titan’s production of organics in its atmosphere and the liquid hydrocarbon lakes present on its surface make it a prime target for astrobiologists. Many previous studies on laboratory analogs of these organics, called "tholins", have found amino acids, nitriles, and other building blocks necessary for life. The potential solubility of tholins in the lakes of Titan presents an opportunity to create physical and chemical changes within the organics. While the lakes of Titan are primarily comprised of nonpolar compounds (methane and ethane), many predict that very small amounts of polar hydrocarbons are also present. To better understand these processes, researchers …
Molecular And Physiological Aspects Of Glufosinate Resistance In Amaranthus Palmeri, Matheus Machado Noguera
Molecular And Physiological Aspects Of Glufosinate Resistance In Amaranthus Palmeri, Matheus Machado Noguera
Graduate Theses and Dissertations
Palmer amaranth is one of the most troublesome weeds in worldwide agriculture. Among the traits that confers extreme weediness to this species, the ability to adapt to herbicide selection pressure stands out. The latest herbicide to which Palmer amaranth developed resistance is glufosinate-ammonium (GFA), an inhibitor of the enzyme glutamine synthetase (GS). The main objectives of this work were: 1) evaluate the resistance level of a Palmer amaranth population from Missouri, USA, 2) determine the mechanisms conferring GFA resistance in Palmer amaranth, 3) elucidate the behavior of amplified GS copies in GFA-resistant Palmer amaranth in terms of inheritance, stability and …
The Dynamics Of Emotion-Related Impulsivity: An Analysis Of Emotional Control And Daily Emotion-Driven Urges And Actions Via Ecological Momentary Assessment, Jeremy B. Clift
Graduate Theses and Dissertations
Emotion-related impulsivity, or the engagement in impulsive reactions specifically in response to emotions, has been identified as a crucial transdiagnostic factor. Mixed evidence from ecological momentary assessments (EMA) underscores a potential discrepancy between the existing measurements of emotion-related impulsivity at trait and state levels. Unlike previous EMA studies examining emotion-related impulsivity through measures of urgency, the current study tested Carver and colleagues’ (2008) reflexive responding to emotion framework by investigating the relationship between emotional control and emotion-related impulsivity. Participants (N = 197) with varying levels of emotional control completed one week of EMA to investigate two central questions. First, we …
Development Of An Intervention For Improving Food Acceptance Of People With Hearing Loss, Sara Esther Jarma Arroyo
Development Of An Intervention For Improving Food Acceptance Of People With Hearing Loss, Sara Esther Jarma Arroyo
Graduate Theses and Dissertations
Hearing loss, defined as the partial or total inability to hear sound in one or both ears, is the most common sensory deficit in adults to date. Approximately 15% of American adults aged 18 and over report some trouble hearing. The impact of hearing loss may be profound, with consequences for the social, functional, and psychological well-being of the person. Surprisingly, very little attention has been paid on whether auditory loss can significantly impact consumers’ sensory perception and overall enjoyment of food. There were four objectives of this dissertation study. Chapter 1 aimed to determine the impacts of hearing loss …