Digital Commons Network^™

Urban Arterial Lane Flow Distribution: A Before And After Traffic Microsimulation Analysis On The Effect Of Implementing New Route Markings And Signage., Larry Michael Summers

Electronic Theses and Dissertations

Urban arterials may not effectively utilize available lanes to move vehicles efficiently as drivers try to establish position along the corridor. This study evaluates lane flow distribution before and after implementing new route markings and overhead signs to utilize existing lanes better. A cellphone-based traffic data service called StreetLight gathered the traffic data used to establish the VISSIM model parameters for simulating current and projected conditions. This study shows that the lane assignment signage and route markers affected the lane flow distribution in the simulation. The simulation indicated the existing condition had average queue lengths of 320.6 meters, average travel …

Incidental Exposure, Political Activity And Perceived Trust., Brianna Berry

Electronic Theses and Dissertations

The current study examines the concept of incidental versus traditional exposure to information through the context of a police brutality incident. Incidental exposure on social media is when a person is exposed to information or imagery without prior warning. It is hypothesized that 1) individuals who are incidentally exposed to a graphic police brutality event will be more likely to participate in politics and 2) will have lower perceived trust in the government. This randomized study utilizes two treatments (incidental exposure and traditional exposure) and a control group. Analysis of the data shows that support for H₁ is only …

The Effects Of Great Leaps Reading On The Reading Fluency Of Elementary Students With Reading And Behavioral Deficits., Gwendolyn Shultz Ashley

Electronic Theses and Dissertations

This dissertation is an examination of one reading fluency intervention presented in digital form. It begins as an overview of the academic challenges faced by students classified as emotional behavioral disorder in our P-12 schools, due to challenges accessing the curriculum. Children that also have reading fluency deficits have an even more difficult time accessing grade level curriculum. Several theories of education are presented, with a focus on instructivist theory. Instructivist theory focuses on such methodology as Applied Behavior Analysis, which includes Discreet Trial Training and direct instruction.Repeated reading is included. All of these are components of Great Leaps for …

How Nutrition Knowledge Of Coaches, Athletic Trainers, And Strength And Conditioning Specialists Translates To Their Athletes, Alexa Carbone

Electronic Theses and Dissertations

The basis of dietary habits is linked to an individuals’ nutrition knowledge; for collegiate athletes this is the difference between optimal performance and falling short. To understand how nutrition information is disseminated to student-athletes, this research surveyed the athletes themselves and their sports staff (coaches, athletic trainers, and strength and conditioning specialists) on their current knowledge. Sport staff and student-athletes at East Tennessee State University were given the opportunity to participate in a 52-question online survey that tested both their general and sports-related nutrition knowledge. While the study sample size did not allow for statistical analyses required to address all …

Influence Of Student Characteristics, Class Size, And Instructor Characteristics In Online Student Success, Melody K. Edmonds

Electronic Theses and Dissertations

The purpose of this non-experimental quantitative case study was to compare the academic success of community college students over three academic years (2016-17 through 2018-19) before the onset of COVID-19 based on final grades and the influence of student factors, class size, and faculty characteristics using archival data from selected online and on-ground classes at a Middle Tennessee community college. Student factors reviewed include gender, full-time or part-time status, and age (traditional or non-traditional status). Instructor characteristics reviewed included full-time or part-time (adjunct) teaching status and tenure or non-tenure status of faculty. Institutional data for this study consisted of 44,568 …

Vitamin B12 Deficiency Does Not Stimulate Amyloid-Beta Toxicity In A Ceanorhabditis Elegans Model Of Alzheimer’S Disease, Opeyemi F. Showemimo

Electronic Theses and Dissertations

Alzheimer’s disease (AD) is symptomized by amyloid-beta plaques in the brain and accounts for more than 65 percent of dementia cases. Vitamin B12 (cobalamin) deficiency can result in similar cognitive impairment and roughly 15% of the elderly are vitamin B12 deficient. Vitamin B12 deficiency results in the accumulation of toxic methylmalonic acid and homocysteine. Hyperhomocysteinemia is a strong risk factor for AD. To test if vitamin B12 deficiency stimulates amyloid-beta toxicity, Caenorhabditis elegans expressing amyloid-beta in muscle were fed either vitamin B12-deficient OP50-1 or vitamin B12-rich HT115(DE3) E. coli bacteria. Increased amyloid-beta toxicity was found in worms fed the …

Profiling Beyond Race: Characteristics Associated With Traffic Stop Outcomes, Megan Anderson

Electronic Theses and Dissertations

Research related to profiling and the outcome of traffic stops has generally focused on the race of the individuals involved. Little research has examined other characteristics, such as age and socioeconomic status, that may also play a role in traffic stop outcomes. The current study sought to address this limitation in two ways: (1) determine whether the characteristics of age, sex, race, social class, and demeanor are profiled during traffic stops and (2) whether these characteristics influenced the outcome of the traffic stops with regard to tickets and vehicle searches. Secondary data were utilized from the 2015 Police-Public Contact Survey. …

Fanfiction: A Look Into The Disruptions Of Gender Identity Through Tropes, Stephanie Preslar

Electronic Theses and Dissertations

Fanfiction provides the unique opportunity to explore disruptions of heteronormativity through tropes. By exploring different fanfictions in the Soulmate AU, ABO Dynamics, and Mpreg tropes, the disruptions indicate a desire to explore gender, identity, and sexuality through queered characters. Male slash fanfiction provides the chance to examine the disruption of the heteronormative through the queering of male characters and placing them into situations that may embrace the feminine or a female-gendered experience. The situating of heterosexual male characters into queered roles allows an examination of how this disrupts canonical ideas of gender, identity, and sexuality. By reviewing the male slash …

It’S Not All Aces: The Role Of Negative Parental Influences And Criminal Thinking In Juvenile Offending Behaviors, Branna Humphrey

Electronic Theses and Dissertations

The role of adverse childhood experiences (ACEs) and criminal thinking in causing criminal behavior has been explored extensively in criminal justice research. Based on the concepts of ACEs and the Psychological Inventory of Criminal Thinking Scale, the negative parental influences and criminal thinking styles of 1,354 juvenile offenders were examined to establish that negative parental influences and criminal thinking are separately associated with juvenile problem and offending behavior, and that criminal thinking mediates the relationship between negative parental influences and juvenile problem and offending behavior. Analyses showed support for criminal thinking as a pathway from negative parental influences to juvenile …

Hemin Utilization In Rhizobium Leguminosarum Atcc 14479, John Lusby

Electronic Theses and Dissertations

Rhizobium leguminosarum is a Gram negative, motile, nitrogen-fixing soil bacterium. Due to the scarcity of iron in the soil bacteria have developed a wide range of iron scavenging systems. The two types of iron scavenging systems used are indirect and direct. In-silico analysis of the genome identified a unique direct iron scavenging system the Hmu operon. This system has been identified in other closely related rhizobium species and is believed to be involved in utilizing heme compounds as a sole source of iron. We have attempted to characterize the role of the Hmu operon in iron utilization by monitoring the …

An Exploration Of Factors Related To Recidivism Rates Among Mentally Ill Parolees, Sierra Kitzmiller

Electronic Theses and Dissertations

Although criminality among mentally ill individuals is a well-documented phenomenon, limited research has focused on specific factors that need to be addressed to combat this issue. Utilizing the theoretical framework of Shaw and McKay’s (1942) Social Disorganization Theory, in conjunction with collective efficacy (Sampson et al., 1997) and social capital (Coleman, 1988), different factors were explored in an attempt to discover their relationship with recidivism. Using secondary data from Criminal Justice Drug Abuse Treatment Studies, variables such as homelessness, unemployment, and religious importance were analyzed in relation to rearrest rates from 889 parolees nine months post-release. Marriage, sex, and age …

A Phenomenological Inquiry Exploring Parental Involvement At Alternative Schools In Eastern North Carolina, Irv Glenn Ii

Electronic Theses and Dissertations

The purpose of this phenomenological study was to discover the perceptions of caregivers and teachers regarding parental involvement at alternative schools in Eastern North Carolina. The lack of parental involvement at some schools is a systemic issue that involves continued efforts by school staff to include caregivers in promoting student success. The difficulties of engaging parents of alternative students result in little interaction between caregivers and educators. It is essential to understand how caregivers and educators perceive parental involvement and assess the quality of parental participation in an alternative educational setting. A qualitative research method was chosen to comprehensively examine …

Defining Higher Education Writing Centers From The Perspectives Of Writing Center Directors, Paul D. Ludwig Mr.

Electronic Theses and Dissertations

The purpose of this study was to discover what defines a writing center by interviewing directors of writing centers in the Southern Appalachian area. This qualitative study was based on a single round of recorded telephone interviews with 13 writing center directors who meet the criteria for inclusion in the study. Many researchers have written about writing centers, their efficacy, and what defines them; yet, no clear consensus exists. Without a clear definition there is no means of determining the efficacy of writing centers.

As a result of the interviews with the writing center directors three critical components of writing …

Simulation Of The Interaction Between Striated Muscle Unc-45 And Transcription Factor Gata-4, Drake Alexander Duncan

Electronic Theses and Dissertations

Striated Muscle UNC-45, also known as UNC-45b, is an important protein that acts as a chaperone for myosin in cardiac and skeletal muscles, binding to myosin at its C-terminal UCS domain and regulating its assembly into thick filaments and sarcomeric structures. The UCS domain contains a large loop that is believed to be the first point of interaction between myosin and UNC-45b. GATA-4 is an essential transcription factor that facilitates transcription of several genes in cardiac development, particularly alpha-heavy chain myosin in heart tissue. Recently, studies have shown that there is interaction of GATA-4 with UNC-45b and that GATA-4 binds …

A Multifunctional Solution Composed Of Tmpyp, 1,5-Dhn, And Fe(Iii) Ions That Produces Reactive Oxygen Species (Ros) In Aerobic, Anaerobic, And H2o2 Environments, Aqeeb Ali

Electronic Theses and Dissertations

Photodynamic therapy (PDT) has become a widely popular therapeutic approach for treating various types of cancer over the past several decades. PDT utilizes a photosensitizer, visible light, and oxygen, to produce reactive oxygen species (ROS) which can be used to treat cancer and inhibit growth of bacteria. In this study, a multifunctional solution that is comprised of Fe(III) ions, cationic meso-tetra(N-methyl-4-pyridyl)porphine tetrachloride (TMPyP), and 1,5-dihydroxynapthalene (1,5-DHN), was shown to produce reactive oxygen species (ROS) such as singlet oxygen (¹O₂) or hydroxyl radicals (ȮH) in aerobic or anaerobic environments, respectively, and in both environments, 1,5-DHN was oxidized …

Characterization And Delineation Of Potential Evaporite Geohazards Using Electrical Resistivity Methods Along Fm 2185, Culberson County, Texas, Lenora Diane Perkins

Electronic Theses and Dissertations

Extensive karst development within the Delaware Basin of West Texas and southeastern New Mexico poses a significant geohazard threat to infrastructure. Dissolution of regional evaporite strata have led to manifestations of karst geohazard phenomena including sinkholes, subsidence features, and caves. The study area is located within the Gypsum Plain in Culberson County, Texas, and includes outcrops of Castile and Rustler strata that host gypsum karst geohazards. Land reconnaissance surveys conducted during the summer of 2019 documented numerous surficial manifestations of karst features proximal to Farm to Market Road 2185 (FM 2185). In combination with traditional survey techniques, electrical resistivity methods …

Coherence, Travis Walthall

Electronic Theses and Dissertations

COHERENCE is a series of oil paintings and pen drawings that explores open narratives, or different ways to read artwork. The paintings and drawings showcase harmony, or tension, between ambiguous and representational forms. The visual experience requires the viewer to create their own narrative and decipher forms to do so. COHERENCE is a psychological and aesthetic exhibition fueled from human experience— one of fragility, uncertainty, imperfection, beauty, faith and memories.

Warrior Dialogue In Samuel: Honor, Shame, And Divine Proxy, Robert A. Kranz

Electronic Theses and Dissertations

Discourse between warriors plays a role in several battle scenes within the books of Samuel. The repartee is a way for the narrator to add color and depth to the narrative and develop essential themes. Social-scientific criticism has often examined these interactions through the cultural lenses of honor and shame. Peristiany, Bourdieu, and Pitt-Rivers are just some scholars who developed cultural frameworks based upon the importance of honor and shame in the Mediterranean region. Malina, extrapolating from North African cultural studies by Bourdieu, developed a challenge and response model for the acquisition of honor as depicted in the Bible. However, …

Remembering Jacob: The Literary Representation Of Memory In The Jacob Narrative, Isaac Borbon

Electronic Theses and Dissertations

This thesis seeks to describe the Jacob narrative through the lens of memory. Taking Gen 28:10-22 as a case study, the objective is to place Jacob’s visit to Bethel alongside other ancient referential claims, analyzing it for authentic memories. However, the complex nature of memory is susceptible to preservation and revision. That is to say, having no desire to comport to modern historical-critical sensibilities, memory’s epistemological underpinnings are concerned primarily with reconstructing a remembered past for subsequent generations of Israelite tradents. In order to understand the historical background to the Jacob narrative in its entirety, a formal analysis of Iron …

Predicting Henry's Law Constants Of Volatile Organic Compounds Present In Bourbon Using Molecular Simulations., Christopher A Abney

Electronic Theses and Dissertations

Henry’s Law describes the partitioning of molecules into liquid and gas phases at low concentrations. Henry’s Law, which is based upon a species-dependent constant and the gas phase partial pressure, is useful for predicting phase behavior of dilute solutes. However, Henry’s Law constants are difficult to measure experimentally or to predict using structure-property or thermodynamic models. Herein, molecular simulations were used to calculate Henry’s Law constants for 18 volatile organic compounds (VOCs) present in bourbon. The novel simulations analyzed solvation thermodynamics of small organic molecules in 120 proof ethanol. A fast-growth non-equilibrium free energy method was used in which the …

Cfd Analysis Of Acoustofluidic Channels And The Effects On Biologic Delivery., Zachary T. Long

Electronic Theses and Dissertations

T-cell transformation is an ever-expanding treatment for several types of cancer, with a potential to be adapted to other disorders in which the immune system plays a key role in the pathophysiology. Currently, all FDA approved chimeric antigen receptor (CAR) T-cell cancer therapies rely on transformation via viral transduction. However, viral transduction is plagued by poor consistency and the potential to create adverse immune reactions when T-cells are reintroduced into a patient. Other transformation methods are being explored, with an alternative called acoustofluidic sonoporation showing promise. In these procedures, cells are passed through a channel, of the millimeter scale, while …

Assessing The Role Of Chronic Arsenite Exposure In Disrupting The Egfr Signaling Axis., Christine Kim

Electronic Theses and Dissertations

Chronic arsenic exposure is a risk factor for the development of pulmonary diseases, including lung cancer, but the exact mechanism is not yet fully understood. Many previous studies have relied on acute arsenic exposure (i.e. 1-10 uM arsenic for 24 hours) to study arsenic toxicological effects. However, acute exposure does not reflect the levels or duration of arsenic associated with environmental exposure, or drinking of contaminated well water. This dissertation differentiates the effects of acute versus chronic arsenic exposures on the EGFR signaling axis and suggests possible mechanisms for chronic arsenic-induced pulmonary diseases. The EGFR is a receptor tyrosine kinase …

Sex-Based Differences In Microbiota Composition And Metabolomic Profiles Associated With Altered Macrophage Function And Protection From Lupus In Bwf1 Mice., James William Harder

Electronic Theses and Dissertations

Systemic lupus erythematosus (SLE) is a complex and an insidious disease that is still not completely understood, and has very few treatment options. Those that are available are ineffective and/or have serious side effects. Both genetic and environmental factors contribute to the susceptibility and resistance to SLE, and understanding the environmental factors underlying this disease could lead to more effective prevention and/or treatment strategies. Like most autoimmune diseases, SLE is much more prevalent in females than males. While there are numerous factors that contribute to this lupus susceptibility, there is increasing evidence that the microbiota can strongly influence lupus progression, …

In Pursuit Of Innocence: A Study Of Race And Ethnicity Differences In Time To Exoneration., Virginia E. Braden

Electronic Theses and Dissertations

Wrongful convictions take years from an individual’s life, rob them of the comfort and presence of their family, rip them from their place in the community, and subject them to the harsh pains of imprisonment. Exonerees can spend years and even decades in the pursuit of proving innocence and obtaining an exoneration. The purpose of this study is to examine the impact of race and ethnicity upon time-to-exoneration through the lens of focal concerns theory. Focal concerns theory has been used to demonstrate that criminal justice actors are influenced by legal and extralegal factors in decision making and rely on …

But Also Full Of Seeds For A Future That Could Have Turned Out Differently., Megan Marie Bickel

Electronic Theses and Dissertations

This thesis examines the relationship between "illusion," "allusion," and their relationship to contemporary images which announce, shield, or reference information. Beginning by discussing Casualist and Post-Digital Painting discourse, two styles I work within, we see connecting tissue in announcing and shielding of meaning. We look at the meaning of marks, and in the parallel exhibition, marks that utilize camouflage strategies appear as a metaphor for illuding to information which appears as conveying depth when there is none, and using paintings' symbols in objects that are not paintings. The work 'alludes' to what the viewer has seen before and relies on …

Estimating Cumulative Incidence Rate On Interval Censored Data In An Illness-Death Model., Chen Qian

Electronic Theses and Dissertations

Phase IV clinical trials are designed to monitor long-term side effects caused overtime by the medical treatment. For instance, in advanced primary cancer treatment, childhood cancer survivors are often at risk of developing undesired events, such as cardiotoxicity, during their adulthood. Such problems could be due to their cancer or the treatment they received for their cancer such as radiation or intensive chemotherapy. Cardiotoxicity can be diagnosed with electrophysiology with measurements of fraction shortening, afterload, etc. Often the primary focus of a study could be on estimating the cumulative incidence of a particular outcome of interest such as cardiotoxicity. However, …

Major League Baseball Fans’ Climate Change Attitudes And Willingness To Adapt: Climate Vulnerability Vs. America’S Pastime., Jessica R. Murfree

Electronic Theses and Dissertations

Climate change threatens the ability to enjoy sport around the world, including in the United States. While the scientific community reached consensus regarding the presence and severity of climate change near the turn of the twenty-first century, that same agreement has not been met across the American general public. Major League Baseball (MLB) is particularly vulnerable to climate change in the U.S. due to its season duration, geographic footprint, and largely outdoor nature. Therefore, the purpose of this study was to investigate relationships between U.S.-based MLB fans’ sport identification and their climate change attitudes, perceptions of climate change risk, and …

Harmful Algal Blooms In The Ohio River: Spatial And Temporal Differences., Bevin Hardy

Electronic Theses and Dissertations

The frequency of harmful algal blooms (HABs) has been increasing across the globe, especially in river ecosystems. Although more common in lakes, more HABs have been reported in rivers in the past decade, particularly in the Ohio River. In 2019, a HAB stretched 200 to 300 miles throughout the Ohio River from September to October. Samples were collected for the duration of the 2019 bloom (August-October) in the McAlpine Pool in Louisville, KY to compare microcystis toxin (microcystin) concentrations on a temporal and spatial scale. Different habitats (bay, creek, river) were sampled throughout the bloom, and two additional sampling days, …

A Qualitative Look At Secondary Trauma Through The Lived Experiences Of Elementary Teachers., Terri L Davenport

Electronic Theses and Dissertations

This research study examined the lived experiences of elementary educators working with traumatized students. Secondary trauma among other professions such as social workers and first responders is well-documented (Bride et al., 2007). Research on the impact it has on educators is still limited (Hill, 2011). This dissertation provides evidence that educators are directly impacted by the work that they do to support and educate their students. A phenomenological approach is used to explore the troubling personal challenges educators face while working with traumatized students. The study examines elementary teachers’ experiences using the Secondary Traumatic Stress (STS) lens as a theoretical …

Multi-Style Explainable Matrix Factorization Techniques For Recommender Systems., Olurotimi Nugbepo Seton

Electronic Theses and Dissertations

Black-box recommender system models are machine learning models that generate personalized recommendations without explaining how the recommendations were generated to the user or giving them a way to correct wrong assumptions made about them by the model. However, compared to white-box models, which are transparent and scrutable, black-box models are generally more accurate. Recent research has shown that accuracy alone is not sufficient for user satisfaction. One such black-box model is Matrix Factorization, a State of the Art recommendation technique that is widely used due to its ability to deal with sparse data sets and to produce accurate recommendations. Recent …