Digital Commons Network^™

The Effectiveness Of Bilateral Cochlear Implants In Adults And Children: A Critical Review, Jennifer Meyer

AuD Capstone Projects - Communication Sciences and Disorders

Unilateral cochlear implants are routinely provided to individuals who present with bilateral severe to profound sensorineural hearing loss. Unilateral implantation is widely accepted as the standard of care by most insurance companies, though bilateral implantation has the potential to restore some of the advantages of binaural listening in these patients. The aim of this literature review is to discuss recent research concerning benefits of bilateral cochlear implantation relative to performance with a single implant in both the pediatric and adult populations. Electronic databases and reference lists were searched using a pre-determined search strategy and were reviewed for relevant information. This …

Socially Constructing Marijuana Policy And Target Populations In The News Media, Jonathan Taylor Langner

Graduate Theses and Dissertations

This research focuses on different aspects of the co-construction African Americans and marijuana in the news. First, the historical background of modern drug laws, including marijuana prohibition, and how this was dependent on racialized fears in the wake of the abolition of slavery. Next, the prevalence and variety of marijuana constructions in a national newspaper, with careful attention paid to associations with racial identifiers. Finally, how African American athletes and marijuana are co-constructed in an exemplary article.

Chapter 2 describes how racial fears relate to the social construction of disadvantaged population in the media. We first describe the current situation …

Russian University Efl Students’ Perceptions Of A Two-Week Online Academic Writing Course, Nataliia Borozdina

Graduate Theses and Dissertations

This case study analyzes Russian university EFL students’ perceptions of a two-week online academic writing course. The researcher investigated 13 students’ attitudes towards an online academic English writing class offered at Kursk State University, Kursk’s oldest higher education institution, founded in 1934. In 1994 it was transformed into Kursk State Pedagogical University, and in 2003 it became Kursk State University. Along with the two-week online course assignments, the students completed pre- and post-questionnaires, reflections about the course, and participated in individual and group interviews. The findings of the study indicate that all of the participants had positive perceptions about the …

A Silicon Germanium Cmos Linear Voltage Regulator For Wireless Agricultural Applications, Aminta Naidili Castillo Robles

Graduate Theses and Dissertations

This thesis presents the design, simulation and test results of a silicon germanium (SiGe) complementary metal-oxide-semiconductor (CMOS) linear regulator. The objective of the circuit is to power other analog devices regardless of the load current and input voltage changes. The application of this regulator is to be part of a project developing a miniaturized semiconductor platform that can be inserted into stems of crops in order to measure data inside the plant and then send it wirelessly to the user. The linear regulator was designed on a BiCMOS SiGe 0.13µm which is a GlobalFoundries process. It has been tested at …

Familiarization Through Ambient Images Alone, Nia Imani Gipson

Graduate Theses and Dissertations

The term “ambient images” has begun to show up in much of the current literature on facial recognition. Ambient images refer to naturally occurring views of a face that captures the idiosyncratic ways in which a target face may vary (Ritchie & Burton, 2017). Much of the literature on ambient images have concluded that exposing people to ambient images of a target face can lead to improved facial recognition for that target face. Some studies have even suggested that familiarity is the result of increased exposure to ambient images of a target face (Burton, Kramer, Ritchie, & Jenkins, 2016). The …

Model Development And Assessment Of The Gate Network In A High-Performance Sic Power Module, William Austin Curbow

Graduate Theses and Dissertations

The main objective of this effort is to determine points of weakness in the gate network of a high-performance SiC power module and to offer remedies to these issues to increase the overall performance, robustness, and reliability of the technology. In order to accomplish this goal, a highly accurate model of the gate network is developed through three methods of parameter extraction: calculation, simulation, and measurement. A SPICE model of the gate network is developed to analyze four electrical issues in a high-speed, SiC-based power module including the necessary internal gate resistance for damping under-voltage and over-voltage transients, the disparity …

Advanced Statistics In Arkansas Sports Reporting, Andrew Lee Epperson

Graduate Theses and Dissertations

This study seeks to analyze how Arkansas’ sports journalists are adapting to the recent surge in available advanced statistics that are being used by certain national news organizations. Using in-depth qualitative research that includes in-depth interviews with a number of individuals in the print, broadcast, and athletics side of sports coverage, we discover how journalists and coaches use these next-generation analytics, what they fundamentally mean for the evolution of each respective path, and why so few Arkansas reporters and writers use them at the time of this paper’s defense. We see how budgets and deadlines restrict the use of these …

Losing Faith: Emily Brontë'S Revolutionized Religion, Emily Renee Holmes

Graduate Theses and Dissertations

“Losing Faith: Emily Brontë’s Revolutionized Religion” discusses the role of religion in her novel Wuthering Heights and her poems set in the mythical world of Gondal. Through close readings of both her prose and poetry, this paper seeks to understand the relationship between the dark, vindictive nature of Brontë’s characters and their hopeful ending. The first chapter, Here’s The Situation, discusses the situation as set up by the novel, focusing specifically on Catherine and Heathcliff. I discuss the violence and codependence of their relationship, their Gondal predecessors, their fascination with each other as well as their torment when apart, and …

Evaluating The Effectiveness Of Motor Planning With Core Vocabulary: A Behavior Analytic Account, Alison Judith Karnes

Graduate Theses and Dissertations

As the prevalence of autism spectrum disorders (ASD) increases, it is important for practitioners to continue to improve evidence-based practices (EBP) for the treatment of ASD symptoms (i.e., impairments in social communication and repetitive behaviors and restricted interests; American Psychiatric Association [APA], 2013). It is estimated that 30-50% of individuals with autism do not acquire functional speech (Wodka, Mathy, & Kalb, 2013). These individuals would make appropriate candidates for Augmentative and Alternative Communication (AAC; Mirenda, 2003). One form of AAC is the speech-generating device (SGD). Over the last ten years, tablet-based technologies including iPad minisⓇ have been emphasized in the …

Examining The Phenomenon Of Elementary School Principal Succession Through The Perspectives And Experiences Of Novice Principals, Dayna Kay Lewis

Graduate Theses and Dissertations

School districts across the United States are confronted with a shortage of highly qualified principal applicants, a situation compounded by a haphazard approach to leadership succession planning. While the vast majority of principals and superintendents endorse the promotion of assistant principals as the most effective way to develop successful school leaders, few structures exist to support that endeavor. Despite their essential role in the school’s operations and escalating demands for accountability for high standards and performance at the school level, assistant principals have been rendered virtually invisible in the scholarly literature. This study sought to fill the glaring gap in …

Comparing Elo, Glicko, Irt, And Bayesian Irt Statistical Models For Educational And Gaming Data, Breanna Morrison

Graduate Theses and Dissertations

Statistical models used for estimating skill or ability levels often vary by field, however their underlying mathematical models can be very similar. Differences in the underlying models can be due to the need to accommodate data with different underlying formats and structure. As the models from varying fields increase in complexity, their ability to be applied to different types of data may have the ability to increase. Models that are applied to educational or psychological data have advanced to accommodate a wide range of data formats, including increased estimation accuracy with sparsely populated data matrices. Conversely, the field of online …

Large-Scale Atomistic Simulations Of Complex And Functional Properties Of Ferroic Materials, Raymond Thomas Walter

Graduate Theses and Dissertations

Ferroelectric (FE) nanostructures have attracted considerable attention as our abilities improve to synthesize them and to predict their properties by theoretical means. Depolarizing field effects at interfaces of FE heterostructures are particularly notable for causing topological defects such as FE vortices and negative dielectric responses in superlattices. In this thesis, I employ two large-scale atomistic techniques, the first-principles-based effective Hamiltonian (HEff) method and the linear-scaling three-dimensional fragment (LS3DF) method. I use these methods to explore optical rotation in FE vortices, electro-optic effects in FE vortices and skyrmions, and voltage amplification via negative capacitance in ferroelectric-paraelectric superlattices. We employ HEff in …

Comparison Of Physical Intensity Between Interactive Video Game Cycling And Conventional Stationary Cycling In Adolescents With High Functioning Autism Spectrum Disorder, Tariq Mohammed Alsoqairan

Graduate Theses and Dissertations

Background: Obesity has become a serious health concern in adolescents with autism spectrum disorder (ASD). Researchers have indicated that sedentary behaviors, especially technological activities, such as video games and other forms of screen-based activities is the main barrier to participate in physical activities. Active video games have demonstrated the efficacy in increasing physical activity and reducing body weight in children and adolescents with disabilities.

Purpose: The purpose of the study was to examine the exercise intensity and enjoyment level of interactive video game cycling (IVGC) in comparison with conventional stationary cycling (CSC) during matched number of sessions utilizing the same …

Validity And Reliability Of A 5-Minute Web-Camera Based Eye Tracking Test To Assess Visual Memory And Cognition, Emily Bates

Graduate Theses and Dissertations

There are approximately 5.7 million Americans currently living with Alzheimer’s Disease (AD). Early detection of cognitive impairment allows for earlier treatment, potentially slowing or halting cognitive decline. A 30-min web-camera eye tracking assessment (30-min VPC) has been validated as a tool to predict AD risk. However, a shorter version would allow for greater scalability and improve user experience. The purpose of this study was to: 1) determine the validity of the 5-minute web-camera based VPC test with the 30-min test, 2) determine the test-retest reliability of the 5-min test, 3) compare the 5-minute test scores of cognitively intact adults (18-39 …

Self-Assembled Nanoantenna Enhance Optical Activity And Transport In Scalable Thin Films And Interfaces, Keith Richard Berry Jr.

Graduate Theses and Dissertations

Continued population growth and the decrease of existing energy platforms demands long-term solutions for development and implementation of scalable plasmonic metamaterials for energy and agricultural applications. Self-assembled nanoantenna into random and ordered arrangements are advanced herein for optical and thermal enhancements in scalable thin film. An analytical approach to estimating the thermal dynamics of random arrangements of nanoantenna resulted in estimates within 30% across a range of geometric parameters, nanoantenna-containing media, and thermal parameters. Multimodal thermal dynamics of polymer thin films containing gold nanoparticles (AuNPs) were observed through the natural log of the dimensionless temperature driving force plotted versus time …

Investigation Of Critical Technologies Of Chemical Vapor Deposition For Advanced (Si)Gesn Materials, Joshua Matthew Grant

Graduate Theses and Dissertations

The development of new materials for efficient optoelectronic devices from Group IV elements is the heart of Group IV photonics. This has direct ties to modern technology as the foundation for the electronics industry is silicon. This has driven the development of silicon-based optoelectronics using these other Group IV materials as silicon is a poor optical material due to its indirect band gap when compared to the III-V semiconductors that are used by most of the optoelectronics industry. While efforts have been made to integrate III-V materials onto silicon substrates, the incompatibility with the complementary metal oxide semiconductor process has …

Career Transitions Caused By Chronic Illness: A Career Construction Perspective, Julie Christine Hill

Graduate Theses and Dissertations

People living with chronic illness face significant challenges when it comes to finding and maintaining employment. There is ample research available that discussed the challenges and barriers to employment for this population. However, there is a lack of research devoted to interventions dedicated to assisting people with chronic illness in career exploration and development. This study attempted to address one possible intervention to assist people with chronic illness identify and pursue possible careers. The purpose of this research study was to explore the impact of participating in the Career Construction Interview on the career exploration of individuals facing a forced …

Amphibian And Reptile Community Responses To Forest And Riparian Disturbance, Jacquelyn Christine Guzy

Graduate Theses and Dissertations

Riparian zones are transitional, semi-terrestrial areas regularly influenced by freshwater. These areas serve as dispersal corridors for many animal and plant species and ultimately function as important reservoirs of biodiversity in altered landscapes. While much of the riparian habitat in the United States has been affected by anthropogenic activities, management actions may mitigate potentially negative influences of these activities. For example, Streamside Management Zones (i.e., riparian buffers; SMZs) are commonly implemented within managed forests to protect water quality, but may also provide habitat for riparian-associated wildlife. Yet, little research has rigorously addressed the value of SMZs for wildlife, particularly cryptic …

They Soon Forgot Their Words - Documentary, Karen Paulk

Graduate Theses and Dissertations

This documentary film, They Soon Forgot Their Words, is about the language issues that threaten the Kaqchikel Mayan language spoken in Guatemala. It is one of 21 Mayan languages spoken in the country and is one of the most widely used with more than 500,000 speakers. Unfortunately, however, scholars have noticed that Kaqchikel is in a state of “shift” a process where one language combines with another in speech. As is the case with many Mayan languages in Guatemala, Kaqchikel is often combined with Spanish in speech. The colloquial name used for the combining of these two languages is “kaqchinol.” …

Effects Of Genre Tag Complexity On Popular Music Perception And Enjoyment, Lauren Shepherd

Graduate Theses and Dissertations

The popular online streaming platform Spotify added over 1400 genre tags in the last two years. Despite that numerous artists and composition competitions claim to seek projects that “transcend the traditional notion of genre,” the industry has only added more complex and mystifying genre labels. This dichotomy between artists and industry ignores the effects these labels have on consumers. Do more complex genre tags enhance the listening experience for the average consumer by providing additional information about what they are about to hear? The current research seeks to examine the effects of the granularity of genre tags on popular music …

The Evaluation Of Low-Use-Rate Zinc Fertilization Strategies On Seedling Canopy Coverage, Zn Concentration, Biomass, And Grain Yield, Maxwell David Coffin

Graduate Theses and Dissertations

Zinc (Zn) is the most common micronutrient deficiency in flooded rice (Oryza sativa L.). Some new Zn fertilization methods have been advertised, but have limited research supporting their efficacy. This study mainly compared the effect of Zn-seed treatment rate in combination with other low-use-rate Zn-fertilization methods to the standard of 11 kg Zn ha-1 as ZnSO4 on rice early-season canopy cover, tissue-Zn concentration, and grain yield. A secondary objective evaluated an alternative method (to seed treatment with ZnO) of enhancing seed-Zn concentration using post-heading foliar-Zn application on seedling tissue-Zn concentration and grain yield. For the main objective, rice seed was …

Cool And Warm Season Climate Signals In Tree Rings From North America, Max Carl Arne Torbenson

Graduate Theses and Dissertations

Earlywood (EW) and latewood (LW) ring-width chronologies have become an increasingly important proxy in paleoclimate reconstructions. These subannual variables can provide estimates of past hydroclimate variability for seasonal windows that total ring-widths cannot resolve. The strength of the relationship between EW and LW series may influence what type of paleoclimate information is embedded within the tree-ring series. High correlations (> 0.70) between EW and LW are recorded for much of the continent but the magnitude of correlation varies greatly across space and species boundaries. Using four LW chronologies from shortleaf pine, the North American conifer species displaying the lowest EW-LW …

Dominant Leadership Dynamics Of School Administrators Leading Non-Instructional Personnel, Michael Ewton

Graduate Theses and Dissertations

With the literature and many schools and school districts advocating for enhanced communication and engagement with parents, families, and the community at large, it is advisable that school-level administrators consider the manner in which they engage the non-instructional employees who serve their schools. This dissertation explores the dominant leadership dynamics experienced by high school principals responsible for supervising non-instructional support services and leading non-instructional operations personnel in their schools. Trained and expected to be instructional leaders, principals must still ensure their students receive the basic services necessary to maintain a safe and effective learning environment. Ensuring students receive the benefit …

A Framework To Guide Undergraduate Education In Interdisciplinary Science, Brie Tripp, Erin E. Shortlidge

Biology Faculty Publications and Presentations

An expanded investment in interdisciplinary research has prompted greater demands to integrate knowledge across disciplinary boundaries. Vision and Change similarly made interdisciplinary expectations a key competency for undergraduate biology majors; however, we are not yet synchronized on the meaning of interdisciplinarity, making this benchmark difficult to meet and assess. Here, we discuss aspects of interdisciplinarity through a historical lens and address various institutional barriers to interdisciplinary work. In an effort to forge a unified path forward, we provide a working definition of interdisciplinary science derived from both the perspectives of science faculty members and scientific organizations. We leveraged the existing …

Differences Between Male And Female Elite Free-Style Wrestlers In The Effects Of “Set Up” On Leg Attack, Sho Ito, Larry Crawshaw, Kazuyuki Kanosue

Biology Faculty Publications and Presentations

Leg attack is the most basic skill in free-style wrestling. Before executing a leg attack, balance and anticipation of the opponent must be disrupted. We defined this action as the “set up”. The aim of this study is knowledge about the effects of “set up” on the success rate of leg attacks, and answer to question: whether or not a gender difference exists in the use and effectiveness of “set ups” in the elite level of the wrestling matches. Material and Methods: We analyzed video recordings of 57 matches of male free-style wrestling seniors, 58 matches of female seniors, 60 …

The Interior Structure Of Immigration Enforcement, Eisha Jain

Faculty Publications

Deportation dominates immigration policy debates, yet it amounts to a fraction of the work the immigration enforcement system does. This Article maps the interior structure of immigration enforcement, and it seeks to show how attention to its structure offers both practical and conceptual payoffs for contemporary enforcement debates. First, deportation should not be conceptualized as synonymous with immigration enforcement; rather, it is merely the tip of a much larger enforcement pyramid. At the pyramid’s base, immigration enforcement operates through a host of initiatives that build immigration screening into common interactions, such as with police and employers. Second, this enforcement structure …

Technology For The 21st Century Workforce: A Case Study Of A Rural East Tennessee Workforce Community, Kim Bolton

Electronic Theses and Dissertations

The purpose of this study was to assess technology use, on-the-job technology training, education levels, and salary ranges of employees in low-, middle-, and high- skill jobs in a rural county in East Tennessee to create an example of a small town workforce. For this study, technology included computers, robotics, and mobile technology. A survey determined the technology used, training provided, salaries, and job skill levels based on education obtained and required by major employers. The study identified the level of jobs requiring more technology skills and salaries or training related to these job skill levels. Participants included 336 persons …

Development Of Granulated Adsorbent For Clean-Up Of Water Contaminated By Cesium, Esther Alorkpa

Electronic Theses and Dissertations

A study was conducted on sol-gel synthesis of an adsorbent (phosphotungstic acid embedded in silica gel, H-PTA/SiO­₂) of radioactive cesium. A novelty of this work is covalent bonding of PTA to the surface of solid support that prevents leaching from the surface of the material. The sample was granulated with a binder, aluminium oxide (γ-Al₂O₃). Solid-state NMR and FT-IR spectroscopy were used to confirm the presence of Keggin units of PTA in the bound materials. Thermal analysis of H-PTA/SiO­₂ - γ-Al₂O₃ (50 %) showed that the water content in the …

Biogeography Of Endemic Dragonflies Of The Ozark-Ouachita Interior Highlands, Wade Alexander Boys

Graduate Theses and Dissertations

A common pattern across many taxonomic groups is that relatively few species are widespread while the majority are restricted in their geographic ranges. Such species distributions are used to inform conservation status, which poses unique challenges for rare or cryptic species. Further, priority status is often designated within geopolitical boundaries, which may include only a portion of a species range. This, coupled with lack of distributional data, has resulted in species being designated as apparently rare throughout some portions of their range, which may not accurately reflect their overall conservation need. The Interior Highlands region of the central United States …

Using Peripheral Venous Pressure Waveforms To Predict Key Hemodynamic Parameters, Ali Zohair A Alalawi

Graduate Theses and Dissertations

Analysis of peripheral venous pressure (PVP) waveforms is a novel method of monitoring intravascular volume. Two cohorts were used to study the hemodynamics change of the body state and its influence on the PVP using (1) dehydration setting with infants suffering from pyloric stenosis and (2) hemorrhage setting during a craniosynostosis elective surgery. The goal of this research is to develop a minimally invasive method of analyzing the PVP waveforms and find correlations with volume loss.

Twenty-three pyloric stenosis patients PVP were acquired at five stages and were divided into euvolemic, normal fluid volume, and hypovolemic, significant fluid loss. Seven …