Digital Commons Network^™

An Examination Of Individual Teacher Engagement And School Climate Characteristics That Influence Highly Effective Veteran Teachers To Remain Teaching In Low-Performing Schools., Terrie Elizabeth Blackman

Electronic Theses and Dissertations

It has been established that attrition of both novice and veteran teachers, but particularly novice teachers, is an ongoing challenge in the United States. The literature confirms that teacher attrition is most prevalent in schools that are hard to staff. Researchers described these schools as urban schools serving high numbers of under-privileged, minority students typically taught by new, inexperienced, and often ineffective teachers. Having large numbers of beginning teachers and increasing numbers of veteran teachers exiting teaching is disruptive to the social, emotional, and academic well-being of the students and prevents schools and school districts from reaching state-mandated student academic …

Dixie Tornadoes : A Spatial Analysis Of Tornado Risk In The U.S. South., Joshua L. Sherretz

Electronic Theses and Dissertations

Throughout the years tornados were a feared and respected phenomenon. This phenomenon was traditionally associated with the high plains of the United States for very good reason. More tornados occur in the American high plains than anywhere else in the world, hence the term: Tornado Alley. However, the American Deep South was and remains prone to many tornados too. So much so that parts of the Deep South were and still are referred to as Dixie Alley. The major focus of this study was how the two areas compared as far as risk is concerned.

This study used both geographic …

The Spectral Atom : Cohesion Of Spectral Particles In The Music Of Alvin Lucier., Timothy Carl Bausch

Electronic Theses and Dissertations

Listeners often associate the music of Alvin Lucier with the practice of experimental music due to his unorthodox means of composition. By viewing his work in this way, whether consciously or subconsciously, his music is often treated as aleatoric. This classification ignores the compositional stimulus that fuels the creation of his music. Lucier’s compositions are driven by the exploitation of one facet (or phenomenon) of sound. These sound phenomena take the form of spectral particles: vibrating media, acoustics, and psychoacoustics. The spectral particles uncovered in his pieces combine to form a spectral atom. By analyzing four of Alvin Lucier’s works, …

Constructs Of Collaboration : A Multi-Case Embedded Study Of A Community-Wide Partnership For School-Age Youth., Charles Curtis Davis Jr.

Electronic Theses and Dissertations

Observing the efficacy of school-community partnerships has historically been a challenge for researchers. This study seeks to investigate a city-wide partnership between the community and local educational agency through the lens of the cross-sector collaboration theoretical framework. The three components of the theoretical framework which will guide this study are observing the antecedent conditions present in collaboration, the processual dimensions of collaborations and lastly making sense of the perceived public value created by collaboration. By utilizing a multi-case embedded case study design, this research seeks to analyze the bounded case of the CARDS partnership to determine the reasons for choosing …

Horse Racing Prediction Using Graph-Based Features., Mehmet Akif Gulum

Electronic Theses and Dissertations

This thesis presents an applied horse racing prediction using graph based features on a set of horse races data. We used artificial neural network and logistic regression models to train then test to prediction without graph based features and with graph based features. This thesis can be explained in 4 main parts. Collect data from a horse racing website held from 2015 to 2017. Train data to using predictive models and make a prediction. Create a global directed graph of horses and extract graph-based features (Core Part) . Add graph based features to basic features and train to using same …

Self-Executed Dramaturgy : A Journey With Miss Ida B. Wells., Sidney Michelle Edwards

Electronic Theses and Dissertations

This thesis presents my experience with the production of Miss Ida B. Wells by Endesha Ida Mae Holland. I used self-executed dramaturgy to enrich my process as an actor and create multiple vocally and physically dynamic historical characters. Throughout this document, I explore how my personal acting process and development as an artist are heavily influenced by the practices of the Alexander Technique. I discuss the unique challenges that I faced with scoliosis and vocal trauma and how I used the training I received during my graduate career to address those challenges. My personal account details the specific methods by …

A Model To Study The Effects Of Whole Life Chronic Exposure To Arsenic Or Cadmium On The Development Of Adult Metabolic Syndrome : Initial Characterization Of Hepatic Changes., Jamie L. Young

Electronic Theses and Dissertations

Metabolic syndrome (MetS) is a group of diseases affecting < 30% of adults. Although obesity is a major risk for the development of MetS, it does not account for all cases, suggesting contribution of other risk factors. We hypothesized that early life exposure to arsenic (As) or cadmium (Cd) may represent such a risk. The purpose of this study was to characterize a model to discern the effects of early life exposures to Cd and As on high fat diet (HFD)-induced MetS. Adult C57BL/6J mice were exposed to control or metals containing drinking water. Pregnant dams and offspring were continuously exposed to the same toxicants as their parents. At weaning, offspring were fed LFD or HFD and sacrificed 10 or 24 weeks later. Metal exposure caused time- and sex-dependent alterations in HFD-induced variables of liver damage. The initial results suggest that these toxicants enhanced obesity-induced liver injury.

Assessing The Relationship Between Talker Normalization And Spectral Contrast Effects In Speech Perception., Ashley Atri Assgari

Electronic Theses and Dissertations

Speech perception is influenced by context. This influence can help to alleviate issues that arise from the extreme acoustic variability of speech. Two examples of contextual influences are talker normalization and spectral contrast effects (SCEs). Talker normalization occurs when listeners hear different talkers causing speech perception to be slower and less accurate. SCEs occur when spectral characteristics change from context sentences to target vowels and speech perception is biased by that change. It has been demonstrated that SCEs are restrained when contexts are spoken by different talkers (Assgari & Stilp, 2015). However, what about hearing different talkers restrains these effects …

Investigation Of Cardiovascular Tissue Following 56fe-Radiation And Potential Countermeasure Effectiveness., Alexandra R Decarlo

Electronic Theses and Dissertations

Exposure to ionizing radiation is an important medical concern because it can lead to health problems including cancer and cardiovascular issues. In space, astronauts are exposed to ionizing radiation that is not experienced by those who remain on Earth. This radiation can cause health problems such as cardiovascular disease. One way this can happen is through the creation of reactive oxygen species, which can activate TGF-β1, contributing to fibrosis or other cardiovascular problems. Antioxidants can be a potential pharmacological mitigator of these excess reactive oxygen species because of their ability to neutralize reactive oxygen species. One such antioxidant with potential …

Plga-Modified Nanoparticles For The Treatment Of Hypo-Vascularized Hpv-Related Cervical Cancers., Lee B. Sims

Electronic Theses and Dissertations

A major challenge associated with delivery of active agents in the female reproductive tract (FRT) is the ability of agents to efficiently diffuse through the cervicovaginal mucosa (CVM) and reach the underlying sub-epithelial immune cell layer and vasculature. A variety of drug delivery vehicles have been employed to improve the delivery of agents across the CVM and offer the capability to increase the longevity and retention of active agents to treat infections of the female reproductive tract. Nanoparticles (NPs) have been shown to improve retention, diffusion, and cell-specific targeting via specific surface modifications, relative to other delivery platforms. In particular, …

Phase Unwrapping Of 4d-Flow Mri Data With Graph Cuts., Andrew Justice

Electronic Theses and Dissertations

A common issue when measuring velocity utilizing 4D flow magnetic resonance imaging (MRI) is aliasing that occurs because of a low velocity encoding parameter (VENC). Aliasing can be avoided if the velocity encoding parameter is set above the largest velocity quantity. However, when this is done the velocity to noise ratio is lowered less detail is acquired in the image. Thusly, it is sometimes desirable to have a below the maximum velocity to acquire higher quality data.

Consequently, an efficient and robust algorithm is needed to unwrap the aliased data. This paper proposes an iterative graph cuts algorithm to perform …

Addition Of Exothermic Reaction Scale-Up Lab To Unit Operations Curriculum., Lisa A Anderson

Electronic Theses and Dissertations

According to the Chemical Safety Board’s 2002 report entitled "Improving Reactive Hazard Management,” the CSB identified 167 serious accidents involving uncontrolled chemical reactions in the United States between 1980 and 2001 causing 108 deaths and hundreds of millions of dollars in property damage. Of the 167 accidents, 35% involved runaway reactions. One noteworthy incident from recent history is the fatal explosion that occurred at T2 Laboratories in Jacksonville, FL as a result of improper scale-up and an insufficient cooling design for the system.

One recommendation resulting from the CSB investigation of the incident was that the Accreditation Board for Engineering …

A Novel Design For A Silicon And Cadmium Telluride Tandem Solar Cell., Jacob A Vittitow

Electronic Theses and Dissertations

No abstract provided.

Reactive Lamination Of Perovskite Solar Cells., Lyndie Burns

Electronic Theses and Dissertations

Due to the growing demand for energy internationally and the environmental impact of other conventional energy technologies, solar power has been a growing area in the energy landscape. Perovskite research has increased substantially because of the high power conversion efficiencies, up to 22%, with many recent advances in the use of these organic-inorganic hybrid perovskites for photovoltaic cells. However, to bring perovskite solar cells into the industrial world, the overall cost of the manufacturing of the solar cell must be improved to compete with other well-developed photovoltaic technologies. Here is presented an alternative perovskite deposition method for methylammonium lead halide …

Investigating The Likelihood Of Pediatric Femur Fracture Due To Falls Through Finite Element Analysis., Keyonna Mckinsey

Electronic Theses and Dissertations

Bone fracture is the second most common injury of child abuse. Studies have generally reported that femur fractures are more likely due to abuse than accidental causes in cases where the child is non-ambulatory. They have also found that household falls are commonly offered as the cause of injury in cases of abuse. In this study, a finite element (FE) pediatric femur model will be developed and used to evaluate likelihood of fracture in common household fall scenarios (bed falls and feet first falls). This will provide greater biomechanical evidence as to the likelihood of femur fracture due to common …

Enhancing Performance Of Ionic Liquid Property Prediction With Molecular Dynamics., Trisha H. Patel

Electronic Theses and Dissertations

Molecular dynamics have been used to predict thermodynamic and transport properties of eight room-temperature ionic liquids. Simulation parameters including box size and van der Waals cutoffs were varied. The density, heat capacity, and self-diffusion coefficients of the ionic liquids were computed and compared to experimental data and to previously published simulations. Predicted properties were generally close to their experimentally observed values. It was determined that the prediction of ionic liquid properties via molecular dynamics simulations could be accelerated several-fold by using less stringent integration parameters and smaller simulation sizes. The properties of density and heat capacity did not change significantly …

Comparing Stenotic Blood Flow In Three- And Two-Dimensional Arterial Renderings Using Computational Fluid Dynamics And Multiphase Mean Age Theory., Jacob S. Garza

Electronic Theses and Dissertations

Over one million invasive coronary angiography procedures are performed annually in patients who experience chest pain or are known to have coronary artery disease. The procedure is carried out to ascertain the degree of arterial blockage (stenosis) that hinders blood flow to the heart. A cardiologist performing the procedure determines the physiological degree of a stenosis by either visual estimation, which is routine practice, or by invasively measuring fractional flow reserve (FFR), which is the current gold standard that has been demonstrated to improve patient outcomes and temper the cost of healthcare. Nevertheless, FFR is performed in only 10–20% of …

The School Counselor Experience: Understanding Variables That Create The Alignment Between The Current School Counselor Role And The Activities Outlined By American School Counselor Association, Candace Marie Williams

Electronic Theses and Dissertations

This study investigated the alignment between the school counselor's role as actualized in schools and as outlined by the American School Counselor Association. The study examined preservice school counselor training, and current school counselor practices to identify barriers that challenge the counselor's ability to meet the needs of the whole child. The study answered four questions: 1) If perceived discrepancies exist between actual school counselor roles and ASCA crafted activities, what are the discrepancies? 2) How do the discrepancies between actual school counselor roles and ASCA job activities happen? 3) How do school counselor duties and time spent align with …

Hope For Transformation: The Metaphorical Broken Window That Distinguishes High-Poverty, Low-Performing Schools From High-Poverty, High-Performing Schools., Tania P. Coleman

Electronic Theses and Dissertations

This study examined the phenomenon of the difference between high-poverty, low-performing schools and high-poverty, high-performing (H-P/L-P & H-P/H-P schools through the metaphorical lens of Kelling and Wilson's 1982 Criminal Justice Broken Windows Theory. The Broken Windows Theory describes the norm-setting and beckoning effect of urban disorder and vandalism on additional crime. Previous research found that H-P/H-P schools had a collaborative school culture. This research used elements of school culture as metaphorical broken windows. The study employed a cross-sectional phenomenology mixed methods design to examine school performance scores, school routines and school culture. Results indicate that when students experienced unstable enrollment, …

Interrupting The Patterns: A Phenomenological Study Of African American Women Re-Purposing Leadership Via The Intersectionality Of Plato And Critical Race Theory, Roslyn R. Hartman

Electronic Theses and Dissertations

This phenomenological qualitative research explored the effects of race and gender on the capacity of five African American women leaders. Although women are occupying more top posts in the American workforce, leadership opportunities for African American women remain elusive despite record post-secondary degree attainment. The purpose of the study was to examine how each woman navigated leadership and derived meaning from the journey through the metaphorical lens of Plato’s “The Allegory of the Cave,” and the intersectionality of Critical Race Theory. The researcher collected data via questionnaires and interviews. Results of the analysis revealed four themes: leadership etiquette, leadership preeminence, …

Reconstructing Ancient Lives Using 3d Technology: A Case Study Of Pork And Doughboy Point, Belize, Jane Fiegel

Electronic Theses and Dissertations

3D technology can preserve cultural heritage resources and enhance museum collections and exhibits. Through 3D scanning, an exact digital replica of an artifact is created, which can be printed out or used to create a digital display. For this project, 3D scanning was used to reconstruct ancient Maya lives at Pork and Doughboy Point, Belize. By studying and classifying an inventory of selected artifacts, we were able to determine what activities occurred at the site. goal of this project was to showcase the growing importance of 3D technology in cultural preservation and the variety of ways in which it can …

Comparative Analysis Of Survival And Decay Of Fecal Indicator Bacteria In Bovine Feces And Freshwater Microcosms, Reem Tariq

Electronic Theses and Dissertations

Agricultural runoff can carry FIB that can pollute surface waters through the soil matrix. This study was designed to inspect the impact of temperature and matrix on the survival of FIB. The FIB were routinely enumerated over an 18-day period from fecal samples and freshwater microcosms maintained at 4oC, 22oC, and 35oC. It was found that the FIB studied underwent a primary growth of up to 1-log10 to 3-log10, highlighting the weakness of conventional FIB as indicators of pathogen contamination. The concentrations of FIB in the water phase were found to be significantly greater than those observed in the fecal …

Identifying Critical Risk Factors In The Decision-Making Process Of Angel Investors And Venture Capitalists: A Delphi Research Study, Shawn A. Carson

Electronic Theses and Dissertations

Entrepreneurs perceive and manage risk differently than investors (Palich & Bagby, 1995). As a result, entrepreneurs may underestimate the extent to which their ventures are perceived to be risky by a potential investor. Consequently, the entrepreneur is left with making assumptions that could be detrimental in obtaining the necessary capital to launch and grow the business. The purpose of this study was to determine if there is a common set of perceived critical risk factors among a group of experienced investors that would cause them to reject a deal out of hand.

The research methodology chosen for this study was …

The Open Door, Dollar Diplomacy, And The Self-Strengthening Movement: The Birth Of American Idealist Imperialism In China, 1890 - 1912, Frederic Poag

Electronic Theses and Dissertations

American Foreign Policy at the outset of the Twentieth century evolved from a realist to an idealist position as the United States transitioned to an imperial power. This ideal framework was formed in the crucible of China during the Spheres of Influence and the Open Door. The US had to play delicate game of helping China to maintain their territorial, and administrative integrity while at the same time protecting their newly acquired overseas interests against more established imperial actors. While there were many missteps, and failures during this transition perhaps the most the important result was the change toward the …

Tennessee Promise: Impact On College Choice In Upper Northeast Tennessee, Jennifer R. Barber

Electronic Theses and Dissertations

The purpose of this correlational study was to explore the relationship between the new statewide two-year financial aid program, Tennessee Promise, and college choice among high school seniors in four counties in upper Northeast Tennessee. Independent variables included GPA, concern about ability to pay for college, and plans to attend a two-year or four-year institution. The dependent variables were scored on three dimensions: cost factors, social factors, and academic factors relating to college choice. Additionally, respondents reported perceptions of Tennessee Promise related to college choice. A 22-item survey was administered to high school seniors from four counties in upper Northeast …

Teachers’ Response To Infants’ Nonverbal Communication And Use Of Response To Facilitate A Dialogue, Stephanie Stephens

Electronic Theses and Dissertations

Beginning with birth, typically developing children use strategies to communicate, and the functions of their language change with maturation and interaction. Since communication cannot exist if both parties do not participate, it is important to not only study the ability of the child, but also the behavior of the adult. Numerous studies have examined the behavior of the parent or other domestic adult, but few have included the study of teacher behaviors.

This study investigated teachers’ response to four types of nonverbal communication attempts made by infants. The gestures included: deictic, affect signaling, object-related, and conventional. The type of response …

Patients’ Perceptions Of Patient-Centered Care And The Hospital Experience Pre- And Post-Discharge, Cheryl Smith

Electronic Theses and Dissertations

Florence Nightingale used the principles of patient-centered care as the foundation for nursing practice. Today, patient-centered care delivery is part of the healthcare reform process that extends interprofessionally throughout all settings of healthcare in the United States (U.S.). Patient satisfaction measurement is one primary determinant of effective patient-centered care. The standardized Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) survey and methods is a nation-wide tool used to measure patient satisfaction. However, this method of patient satisfaction assessment relies on recollections of patients’ hospital experiences and requires accurate memory and recall. This study sought to examine the effect of …

The Words Of War: A Content Analysis Of Republican Presidential Speeches From Dwight D. Eisenhower, Richard M. Nixon, George W. Bush, And Donald J. Trump, Patrick Lee

Electronic Theses and Dissertations

In this analysis of public speeches from four American presidents from the Republican party, the ways in which those presidents discuss and position American defense activities and stances are examined, to track the progression from the 1960s to the present. Presidents from one party were chosen, who presided over a period of active armed conflict or cold war. The addresses analyzed comprised public addresses to Congress or the American people. The analysis groups recurring frames--conceptually developed based on framing and agenda setting theories--into thematic categories for each president. Some frames were more salient for certain presidents than for others. Other …

Vocal Health: Awareness And Perceptions In Undergraduate Vocal Music And Theatre Majors, Heather Smith

Electronic Theses and Dissertations

Objective: The purpose of this study was to identify the perceptions of students majoring in vocal music and theatre regarding the instruction they receive in their undergraduate curricula on voice health education.

Methods: A survey was adapted from a previous study, Beeman (2016), with permission by the author. The survey was disseminated to undergraduate vocal music and theatre majors across the United States via SurveyMonkey®, an online survey tool.

Results: Students perceived receiving knowledge on vocal health from their voice teachers, however they reported low levels of vocal hygiene compliance. Additionally, students recognized the connection between the singing and speaking …

Evaluating Socially Determined Health In Rural Appalachia: Use Of The Social Quality Theory, Paula Masters

Electronic Theses and Dissertations

People living in rural America face unique social circumstances that can prevent them from reaching optimal health status. This fact holds especially true in the rural Appalachian region of the United States where income, education, living circumstances, and lack of resources create an environment that has some of the highest rates of morbidity and mortality in the country. While the rest of the country has seen improvement in many health behaviors and health outcomes, rural Appalachian communities remain unchanged and further behind other regions. In many cases, programming and policy have failed to create a culture of health in Appalachia. …