Digital Commons Network^™

A Framework For Cardio-Pulmonary Resuscitation (Cpr) Scene Retrieval From Medical Simulation Videos Based On Object And Activity Detection., Anju Panicker Madhusoodhanan Sathik

Electronic Theses and Dissertations

In this thesis, we propose a framework to detect and retrieve CPR activity scenes from medical simulation videos. Medical simulation is a modern training method for medical students, where an emergency patient condition is simulated on human-like mannequins and the students act upon. These simulation sessions are recorded by the physician, for later debriefing. With the increasing number of simulation videos, automatic detection and retrieval of specific scenes became necessary. The proposed framework for CPR scene retrieval, would eliminate the conventional approach of using shot detection and frame segmentation techniques. Firstly, our work explores the application of Histogram of Oriented …

Swallow And Breathing Coordination Following Suprahyoid Muscle Injury., Bradley Kimbel

Electronic Theses and Dissertations

Swallowing motility disorders (dysphagia) are a major complication following radiation treatment for head and neck cancer, affecting ~50% of those treated. One reason for this is that radiation causes muscle damage, provoking sensorimotor pathologies. Previous work has suggested that injury may cause discoordination between breathing and swallowing behaviors. We sought to determine if muscle injury provokes changes in this behavior. We hypothesized that acute suprahyoid muscle damage would alter cross-behavior excitability, causing destabilization of the respiratory-swallow pattern. Swallowing was evoked in anesthetized spontaneously breathing cats via injection of a 3cc bolus of water into the oropharyngeal cavity. A suprahyoid injury …

Gestures Of Creative Recovery For The Egocentric Actor Through Performance In Wertenbaker's Our Country's Good., Ross Joel Shenker

Electronic Theses and Dissertations

This document serves as a travelogue for the creation of two roles for the U of L Fall 2017 Production of Timberlake Wertenbaker’s Our Country’s Good. At odds throughout the process were intellect and vulnerability. In an attempt to find openness with my primary scene partner, I tried a variety of techniques including, but not limited to: Konstantin Stanislavski’s “Bits and Tasks”; Michael Chekhov’s “Psychological Gesture”; Carl Jung’s theories on Archetype; F.M. Alexander’s notions of “Inhibition” and “Nondoing” as expounded upon by Betsy Polatin; and Julia Cameron’s “Morning Pages.” My original goal of achieving vulnerability on stage became consumed …

Soil Ecology Of The Exotic Dune Grass Leymus Arenarius., Matthew L. Reid

Electronic Theses and Dissertations

Exotic plants can alter the structure and function of native communities both above- and belowground, which is particularly important in primary successional sand dune ecosystems where plant-soil interactions are critical drivers of successional dynamics. In Great Lakes sand dunes, the native foundation grass Ammophila breviligulata dominates early in succession until an accumulation of detrimental soil organisms causes its die-back of the grasses. Die-back of this native foundation species can be slowed by mutualistic interactions between plants and mycorrhizal fungi. Changes to the plant community resulting from invasion, and subsequent effects on the soil community have the potential to disrupt the …

Multi Self-Adapting Particle Swarm Optimization Algorithm (Msapso)., Gerhard Koch

Electronic Theses and Dissertations

The performance and stability of the Particle Swarm Optimization algorithm depends on parameters that are typically tuned manually or adapted based on knowledge from empirical parameter studies. Such parameter selection is ineffectual when faced with a broad range of problem types, which often hinders the adoption of PSO to real world problems. This dissertation develops a dynamic self-optimization approach for the respective parameters (inertia weight, social and cognition). The effects of self-adaption for the optimal balance between superior performance (convergence) and the robustness (divergence) of the algorithm with regard to both simple and complex benchmark functions is investigated. This work …

Tissue Engineered Micro And Macrovasculature Utilizing Stromal Vascular Fraction., Joseph Samir Zakhari

Electronic Theses and Dissertations

This dissertation describes the use of stromal vascular fraction to tissue engineer 3D microvasculature and macrovasculature. Stromal vascular fraction is an easily isolatable cell source from adipose tissue depots. It has demonstrated remarkable potential both in vitro and in vivo for forming microcirculation capable of perfusion upon implantation. SVF is clinically utilized as a therapeutic cell source for anti-inflammation for osteoarthritis and is being studied for ischemic tissue application to stimulate revascularization. The work described herein is divided within four chapters. Chapter I provides an introductory overview and lists the aims and hypothesis for the dissertation. Chapter II describes experiments …

Optimizing High-Speed Exercise Performance : Effect Of Load., Ling Bai

Electronic Theses and Dissertations

The purpose of this study was to identify an optimal load for the knee extension exercise done with Impulse (Newnan, GA). Forty-one women and twenty-nine men made six laboratory visits, including two familiarization sessions of the knee extension exercise and four real workout sessions which entailed four 30-second exercise sets, separated by 120-second rests, against four different loads (0Kg, 3.41Kg, 5.68Kg, 7.95Kg). A Latin Squares design was used to counterbalance the sequence of the sets. Average force (AF), peak force (PF), total work (TW), Impulse value, and the number of knee extension repetitions were each analyzed with a 2 (gender) …

An Assessment Of The Disaster Preparedness Knowledge Of Emergency Medical Services Providers In Hajj Of 2016., Ahmed Meaiwedh Al-Otaibi

Electronic Theses and Dissertations

Objectives: 1) Assess knowledge regarding disaster preparedness for mass gathering among SRC-EMS providers during the Hajj 2016 2) Explore the relationship between the demographic variables and knowledge about disaster preparedness among SRC-EMS providers during the Hajj 2016 3) Explore the sources of knowledge for SRC-EMS providers about disaster preparedness. Method: The data collection for this study was a cross-sectional survey using an online Qualtrics survey. It was convenience sample of 1650 respondents. For the analyses descriptive statistics was used, one-way ANOVA and Bonferroni correction for multiple comparisons tests, multiple regression analyses, and Pearson’s product coefficients. Results: The main findings in …

Characterizing The Virulence Factor Yape In Yersinia Pestis., Tiva Templeton Vancleave

Electronic Theses and Dissertations

Yersinia pestis is the causative agent of bubonic plague and is primarily transmitted by fleas. Upon infection, the bacteria rapidly travel to the regional lymph nodes causing inflammation and cellulitis in these tissues (referred to as buboes). Two outer membrane proteins, YapE and Pla, have been implicated to have roles in dissemination to the lymph nodes. Their adhesive properties have shown that they are able to interact with host macrophages thereby increasing their ability to disseminate to regional lymph nodes. More recently, we have shown that YapE is cleaved by another virulence factor important for lymph node colonization, Pla, to …

Region Based Gene Expression Via Reanalysis Of Publicly Available Microarray Data Sets., Ernur Saka

Electronic Theses and Dissertations

A DNA microarray is a high-throughput technology used to identify relative gene expression. One of the most widely used platforms is the Affymetrix® GeneChip® technology which detects gene expression levels based on probe sets composed of a set of twenty-five nucleotide probes designed to hybridize with specific gene targets. Given a particular Affymetrix® GeneChip® platform, the design of the probes is fixed. However, the method of analysis is dynamic in nature due to the ability to annotate and group probes into uniquely defined groupings. This is particularly important since publicly available repositories of microarray datasets, such as ArrayExpress and NCBI’s …

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 …

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.

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, …

Think Outside The Music Video: A Fantasy Theme Analysis Of Music Videos That Break The Genre Convention, Kimberly Danielle Martinez

Electronic Theses and Dissertations

Typically, music videos fulfill an entertainment purpose, but this Master’s thesis is dedicated to a rhetorical analysis of two music videos that fulfill a greater purpose. I studied two music videos that break the music video genre mold because each one is centered on two societal issues that would be distressing to discuss in other contexts. The first artifact I studied is Eminem’s music video for “Stan,” which highlights the issue of idolization and fandom. The research question that guided this analysis is: How can a rhetor utilize music videos to illustrate the consequences of idolization and fandom? The second …

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 …

The Effect Of Ethanol On Skeletal Muscle Endocrine Function And The Novel Myokines Myonectin And Irisin, Kendra Hagood

Electronic Theses and Dissertations

Excessive alcohol consumption is a leading cause of death and disability globally and can lead to diseases such as alcoholic skeletal myopathy. Skeletal muscle is the largest organ in the human body and functions to regulate whole-body energy homeostasis. Additionally, skeletal muscle can function as an endocrine organ via secretion of myokines. Two myokines, myonectin and irisin, present a wide range of effects upon metabolism, inflammation, and tissue survival- signaling. We hypothesized that chronic alcohol consumption will result in reduced circulating myonectin and irisin levels. Mice were fed an ethanol-containing or control diet for 10 days or 6 weeks. Tissues …

Exercise Preconditioning And Tfam Overexpression Diminish Skeletal Muscle Atrophy., Nicholas Todd Theilen

Electronic Theses and Dissertations

This dissertation is an analysis of skeletal muscle atrophy and a molecular assessment of potential preventative treatments. Chapter I begins with a background of skeletal muscle atrophy along with an analysis of associated molecular pathways. Here, we discuss how skeletal muscle atrophy is the consequence of protein degradation exceeding protein synthesis and can occur when a muscle is abnormally disused. The development of therapies prior to skeletal muscle atrophy settings to diminish protein degradation is scarce and could be useful to prevent negative clinical outcomes of patients who must unload and disuse musculature over extended periods. Mitochondrial dysfunction is associated …

The Impact Of A Sixth Grade Laptop Initiative On Student Attitudes Concerning Their Learning And Technological Competencies, Jamie Jordan

Electronic Theses and Dissertations

This research explored the impact of a sixth grade one-to-one laptop initiative on student attitudes about learning and technological competencies. The study compared student preintervention and postintervention survey data prior to and after a sixth grade laptop intervention initiative. The survey responses were divided into 5 dimensions (School Subject Attitudes, Teaching and Learning Preferences, Computer Use Perceptions, Technology Skills, and Personal Attitudes and Behaviors) on both pre- and postsurveys. District means were compared with preintervention and postintervention data, as well as the means from the 5 dimensions, using a one-sample t-test with a midpoint test value of 3 on a …

Does Spaceflight Increase The Chance Of Female Astronauts Developing Uterine Cancer?, Areej Mosa

Electronic Theses and Dissertations

One of the main questions put forth by NASA and the European Space Agency (ESA) is whether or not an organism, especially mankind, can complete an entire life cycle in space. With this in mind, it is essential to study the effect of spaceflight on reproductive tissues. Using simulated microgravity techniques and whole-body radiation we sought to determine if females subjected to a simulated spaceflight environment have increased incidences of uterine cancer. Uterine tissue from mice subjected to simulated spaceflight was analyzed using immunohistochemical staining and western blot analysis. Two pathways commonly activated in cancer were investigated. Additionally, the uterine …

The Inclusive Classroom: Perceptions Of General And Special Educators’ Preparedness To Meet The Needs Of Students With Disabilities, Allecia Frizzell

Electronic Theses and Dissertations

This study was designed to determine whether kindergarten through eighth grade general education teachers and special education teachers were prepared to meet the needs of students with disabilities in inclusive classrooms. Conducted in Northeast Tennessee, an online survey was used to collect responses from participants in six school districts. The survey focused on four dimensions including perceptions of preparedness, attitudes towards inclusion, perceptions of administrator support and perceptions of self-efficacy. Data collected from 180 respondents were analyzed and informed the results of this study.

Findings indicated that special education teachers reported significantly higher levels of preparedness to meet the needs …

Eggplants And Peaches: Understanding Emoji Usage On Grindr, Emeka E. Moses

Electronic Theses and Dissertations

This study focuses on how gay men communicate on the Grindr dating app. Prior research has been conducted on how gay men construct their online identities, however, few studies explore how gay men experience interactions online, negotiate their relationships with other men online, and perceive other users. The researcher conducted in-depth interviews with 20 men who use the Grinder app, a location-based dating app used by men who have sex with men. Additional data were collected by observing user profiles on the app, which is free and public. This comprehensive, qualitative study of gay men who use Grindr provides insights …

Thriving In A Fortune 500 Company: A Case Study Of Grit, Resilience, And Employee Perceptions, April Pack

Electronic Theses and Dissertations

A qualitative case study was conducted to document 12 employees’ perceptions of thriving in a Fortune 500 Company. The case study enabled the researcher to explore the perceptions of thriving among employees with varying levels of grit and resilience using maximum variation sampling strategy. The grit and resilience of these employees had been previously measured through a 14-item Adversity Quotient (AQ) Profile and a 10-item Grit Gauge (GG) assessment. Through analysis of interviews, concept maps, and a ranking exercise the researcher was able to identify the most critical factors that lead to thriving in the Fortune 500 Company. The factors …

Preschool Teachers' Perceptions Of Children Prenatally Exposed To Drugs, Brandie D. Maness

Electronic Theses and Dissertations

With the incidence of prenatal drug exposure increasing, it is important that preschool teachers are prepared and confident in serving the needs of children affected by this exposure. Teachers need more training and education to prepare them for working with children with prenatal drug exposure.

The purpose of this sequential mixed-methods study was to explore the perceptions, training, and shared experiences of preschool teachers when working with 4- and 5-year-old preschool children who have experienced prenatal drug exposure. The researcher invited 77 preschool teachers in northeast Tennessee working in either Head Start or Tennessee Voluntary Pre-K Initiative programs to complete …

Myths, Risks, And Ignorance: Western Media And Health Experts’ Representations Of Cultures In Ebola-Affected West African Communities, Samson Wonnah

Electronic Theses and Dissertations

The 2014 Ebola outbreak, mostly affecting Liberia, Sierra Leone, and Guinea, is the largest ever recorded. The Ebola response encountered resistance in some affected communities, where some residents accused relief agencies from the Global North of denigrating local cultures. This thesis examines mainstream Western media and health experts’ representation of culture in the Ebola-affected region and employed Foucauldian analysis of discursive power to discuss the impact of such a representation on the concerned communities. Through a content analysis of selected journal and news articles by Western scholars and media and official reports by some relief agencies involved with the Ebola …

An Intersectional Feminist Perspective Of Emmett Till In Young Adult Literature, Claire Jones

Electronic Theses and Dissertations

Emmett Till’s murder inspired many novelists, poets, and artists. Recently, Till has inspired several feminist young adult novelists who are introducing his case in an intersectional way to a new generation of readers. The works that I have studied are A Wreath for Emmett Till (2003) by Marilyn Nelson, The Hunger Games Trilogy (2008-2010) by Suzanne Collins, and Midnight without a Moon (2017) by Linda Jackson. By examining how the authors employ a feminist perspective, readers can understand how they are striving for a more inclusive, intersectional feminist movement. This is significant because the publishing industry, specifically for Young Adult …

Environmental Deterioration In Contemporary Appalachian Literature: A Biblical Ecocritical Analysis Of Serena And Strange As This Weather Has Been, Alexandria C. Craft

Electronic Theses and Dissertations

Ron Rash’s Serena and Ann Pancake’s Strange as This Weather Has Been are two contemporary Appalachian novels that have yet to be analyzed from a biblical ecocritical perspective. While some literary scholars acknowledge the environmental aspects of the novels, little of their research goes beyond examining the land and its resources as commodities or metaphorical extensions for the characters. In this thesis, I elaborate on those interpretations by scrutinizing the natural descriptions in both novels and comparing those findings to some of the landscapes and environmental verses located within the Bible. Unlike the pastoral ideal found in a portion of …

Postcranial Morphology And The Locomotor Adaptations Of Extant And Extinct Crocodylomorphs And Lepidosaurs, Laura Rooney

Electronic Theses and Dissertations

I have collected a series of linear measurements of the postcranial skeletons of 43 extant crocodylian and lepidosaur taxa to determine if those engaging in similar locomotor behavior display similar morphology despite phylogenetic differences. Stepwise discriminant function analyses reveal reptile locomotor mode can be accurately predicted (over 80% correct) based on morphology. Semi-aquatic taxa are distinguished by a longer ischium relative to pubis length, a longer scapula relative to humerus length, and a broader acetabulum than terrestrial and arboreal taxa. Arboreal taxa display a more elongate, gracile humerus and a smaller acetabulum. This morphometric data can potentially be used to …

“All The Foundation Of The Earth Becomes Desolate” Tracing Icelandic And Anglo-Saxon Connections Through A Shared Literary Frontier, Adam E. Timbs

Electronic Theses and Dissertations

The mythology of migration is deeply integral to the medieval Germanic societies peopling Northern Europe and the island nations of the North Sea. Anglo-Saxon and Icelandic society construct their identities through a memory of migration that takes places within a frontier that is mythic and historical in scope. By surveying eco-critical components of Anglo-Saxon poems such as “The Wife’s Lament” and “The Husband’s Message” alongside the Icelandic sagas Egil’s saga and The Vinland sagas, a shared tradition of the frontier ideal is revealed.