Digital Commons Network^™

School-Based Speech-Language Pathologist's Perceptions Of Sensory Food Aversions In Children, Ellen Monroe

Electronic Theses and Dissertations

Sensory Food Aversions occur frequently in children who are likely to appear on Speech-Language Pathologist’s (SLP’s) caseloads. The lack of research regarding intervention for Sensory Food Aversions in schools and the assertion of a gap in school-based services for children with feeding disorders was a significant indicator for the need of the study. A quantitative, descriptive, exploratory research design was selected using a self-developed questionnaire in order to exploreschool-based SLP’s perceptions of their knowledge and skills related to Sensory Food Aversions, as well as determine resources available for working with this population. Findings from the study suggest a need for …

Volatile Organic Compound Exposure And Cardiometabolic Syndrome Risk In A Nationally Representative Cohort., Stacey Lane Konkle

Electronic Theses and Dissertations

BACKGROUND: The relative importance of environmental exposures such as volatile organic compounds (VOCs) is one of the paramount public health priorities of our time, yet is presently unstudied. VOCs are ubiquitous in the environment and have been associated with numerous adverse health effects, including a number of cardiovascular and metabolic effects that are components of Cardiometabolic Syndrome (CMS). OBJECTIVES: To examine the relationship between CMS and individual-level exposures to VOCs, measured as urinary metabolites of VOCs (UM-VOCs), in a nationally representative sample. METHODS: Associations between urinary biomarkers of exposure to 19 parent VOCs and CMS were assessed using the National …

Oral Health-Related Quality Of Life In Us Adults With Type 2 Diabetes., Giang Truong Vu

Electronic Theses and Dissertations

This dissertation focused on the relationship between type 2 diabetes (T2DM) and oral health-related quality of life (OHRQoL) and the factors associated with this relationship in the US. The objectives of the dissertation research were a three-part process: (1) to understand the relationships of T2DM with poor OHRQoL, clarify risk and preventive factors that affect this association, and identify research gaps in the literature, (2) to analyze risk factors associated with poor OHRQoL in US adults with T2DM using a nationally representative random probability cluster sample, and (3) to apply structural equation modeling (SEM) to a simplified Andersen’s Behavioral Model …

Sulforaphane Protects Against Ethanol-Induced Apoptosis And Teratogenesis Through Epigenetic Modulation Of Anti-Apoptotic Genes., Yihong Li

Electronic Theses and Dissertations

Background. Ethanol-induced excessive apoptosis in neural crest cells (NCCs), a multipotent progenitor cell population, is one of the major mechanisms underlying the pathogenesis of Fetal Alcohol Spectrum Disorders (FASD). However, the molecular mechanisms underlying FASD that results from maternal alcohol exposure during pregnancy are poorly understood. The overall goals of this study are to examine the mechanisms by which ethanol induces apoptosis and malformations in vitro and in vivo, and to develop a nutritional-based approach by using SFN and SFN-rich BSE to prevent FASD through epigenetic modulation. Results. This study demonstrates that ethanol exposure resulted in a significant increase …

Development Of In Vitro Models To Study The Rapid Extraintestinal Dissemination Of Salmonella., Adarsh Gopinath

Electronic Theses and Dissertations

Salmonella appears in the bloodstream of mice in as little as 15 minutes after oral inoculation and establishes persistent colonies in the spleen and liver. While its pathway to blood is undetermined, this phenomenon is dependent on the activity of Salmonella pathogenicity island 2 (SPI-2) coded type III secretion system (T3SS) and CD18+ phagocytes. We hypothesize that dendritic cells associated with the basal face of the gut epithelium, that are naturally migratory and known to sample for luminal antigens directly transport Salmonella to the bloodstream. This process comprises of at least two phases, dissociation and reverse transmigration. We define dissociation …

Coparenting And School Success: Perspectives Of Fathers., Shannon M. Mount

Electronic Theses and Dissertations

Historically, measures of coparenting have been reported by mothers. As a result, fathers’ perspectives and experiences have largely been excluded from this body of research. In response, this study relies on fathers own report of coparenting support. This study used a sample of 1255 biological fathers from the Fragile Families and Child Wellbeing Study (FFCWS) to explore fathers’ reports of their coparenting support and how this is associated with relationship status with mother, time spent with child, and several school success variables including: internalizing and externalizing school behaviors and math and reading assessment scores at child age 9. Hypotheses included …

Food Insecuity In Historically Disenfranchised Parts Of Jefferson County, Ky., Kaitlyn Smith

Electronic Theses and Dissertations

The objective of this study is to investigate the availability of fresh and nutritious foods in Louisville’s West End communities. This study operates under the assumption that residents in Jefferson County have unequal access to food. This study also addresses the question of how residents and local non-profits feel about strategies that build community through food. This study is significant because across Louisville, more than 120,000 people are living with food insecurity, meaning they don't have reliable access to healthy, affordable food (Dare to Care 2019). Multiple reports that have been commissioned by local non-profits and metro departments in the …

Neonatal Abstinence Syndrome And The Relationship Between Respiration And Feeding, Paul Rice

Electronic Theses and Dissertations

Objective: The primary purpose of this study was to determine the relationship between respiratory status and feeding difficulties in infants with NAS in comparison to full-term infants with no exposure to opioids.

Methods: A group of infants with NAS (262) were compared to a group of full-term infants with no exposure to opioids (279). These groups were further divided into feeding and respiratory groups based on severity. These groups were analyzed for differences in behavior and outcomes.

Results: Infants with NAS are 34.23 times more likely to develop respiratory distress and 111.03 times more likely to develop severe feeding difficulty. …

Efficient Conditional Inactivation Of Rdh10 Reveals Important Role Of Retinoic Acid During Lung Branching Morphogenesis., Nhut Quang Huy Tran

Electronic Theses and Dissertations

Birth defects are complicated pathological processes. Many birth defects can be traced back to disrupted regulation of molecular signaling pathways during embryogenesis. One of the most important gene regulatory factors during embryo development is retinoic acid (RA). However, studying the specific roles of RA in each organ during embryogenesis in vivo is challenging. The Sandell laboratory has a conditional mutant mouse model that can potentially be used for studying the role of RA during embryogenesis by inducing stage-specific RA deficiency. This model allows retinol dehydrogenase 10 (Rdh10), a gene required for RA production, to be inactivated at a …

Investigation Of Multiple Imputation Methods For Categorical Variables, Samantha Miranda

Electronic Theses and Dissertations

We compare different multiple imputation methods for categorical variables using the MICE package in R. We take a complete data set and remove different levels of missingness and evaluate the imputation methods for each level of missingness. Logistic regression imputation and linear discriminant analysis (LDA) are used for binary variables. Multinomial logit imputation and LDA are used for nominal variables while ordered logit imputation and LDA are used for ordinal variables. After imputation, the regression coefficients, percent deviation index (PDI) values, and relative frequency tables were found for each imputed data set for each level of missingness and compared to …

Association Of Perfluorinated Chemicals With Endocrino-Carcinogenetic, Obesogenic And Metabolic Health And With Markers Of Chronic Inflammation And Oxidative Stress, Ogbebor Enaholo Omoike

Electronic Theses and Dissertations

First, this study examined the association of perfluorinated chemicals with 1) cardio-metabolic health outcomes and 2) the association of phthalates with cardiometabolic health outcomes, and 3) cardio-metabolic health outcomes while assessing the possibility of additive interactions between perfluorinated chemicals (PFCs) and phthalates. Second, association with markers of chronic inflammation and oxidative stress were explored. Finally, this study examined the association of these chemicals with estrogenic cancers- Breast cancer, prostate cancer, uterine cancer and ovarian cancer.

Using data from the National Health and Nutrition Examination Survey (NHANES), logistic regression models were used to investigate the relationship between PFCs and the cardio-metabolic …

Archaeological, Geophysical, And Geospatial Analysis At David Crockett Birthplace State Park, In Upper East Tennessee, Reagan Cornett

Electronic Theses and Dissertations

A geophysical survey was conducted at David Crockett Birthplace State Park (40GN205, 40GN12) using ground-penetrating radar (GPR) and magnetometry. The data indicated multiple levels of occupation that were investigated by Phase II and Phase III archaeological excavations. New cultural components were discovered, including the remnants of a Protohistoric Native American structure containing European glass trade beads and Middle Woodland artifacts that suggest trade with Hopewell groups from Ohio. A circular Archaic hearth was uncovered at one meter below surface and similar deep anomalies were seen in the GPR data at this level. A semi-automated object-based image analysis (OBIA) was implemented …

Bilateral Muscle Oxygenation Kinetics In Response To Repeat Sprint Cycling In Strong And Weak Individuals, John Abbott

Electronic Theses and Dissertations

Repeat sprint ability has been investigated thoroughly, however optimal training methodology to improve RSA remains elusive. Both kinetic and physiological viewpoints have been used to scrutinize aspects of RSA including, initial sprint performance (anaerobic power), maximal cardiorespiratory fitness (VO2max), lactate threshold, anaerobic capacity (mean power), muscle activation (EMG), and local muscle oxygenation kinetics. To our knowledge no study has utilized maximal strength levels as a separate factor among a homogenous group of cardiorespiratory fitness individuals (as determined by peak VO2 during RSA). The purpose of this study was to better understand the relationship between maximal strength, muscular characteristics, and cycling …

Health And Academic Achievement In College And University Students, Amber Beane

Electronic Theses and Dissertations

The purpose of this non-experimental quantitative correlational study was to investigate the relationship between academic achievement and health in a national sample of college students using quantitative data analysis. Specifically, the researcher analyzed the relationship between three health-promoting behaviors (physical activity, strength training, and fruit and vegetable consumption), three negative health behaviors (cigarette, e-cigarette, and opioid use) and obesity with GPA.

Cross-sectional data on student health collected from the American College Health Association’s National College Health Assessment II (ACHA-NCHA-II) and completed by 426,650 college students from 650 U.S. colleges during the semesters between 2015 and 2019 formed the foundation for …

Encephalization In Commensal Raccoons: A Unique Test Of The Cognitive Buffer Hypothesis, Peter M. Anderson

Electronic Theses and Dissertations

This study investigated selective pressures associated with encephalization in mammals and discussed broader implications. Relative brain size as measured by EQ (Encephalization Quotient) was compared between ecological categories. Omnivores had higher average EQ than ecological specialists. Since specialists are disproportionately affected by extinction events, selection for ecological generalism is proposed as encephalization mechanism. This mechanism may reinforce the more widely known Cognitive Buffer Hypothesis (CBH)—the idea that possessing relatively large brains has buffered lineages against environmental change. CBH is tested here by comparing EQs in Procyon lotor (raccoon) in urban and rural environments. CBH predicts that raccoons in the most …

Examination Of Perceptions Of Weight Loss And Weight Loss Methods, Andrew Seiber

Electronic Theses and Dissertations

The purpose of this study was to examine individuals’ perceptions of weight loss and weight loss methods. Respondents were employees and customers attending health/wellness events at local supermarkets in June, July, and August 2019. Participants completed a survey to assess their understanding and perceptions of weight loss and methods used to achieve weight loss. The majority of participants were white females, 60 years or older with a college degree and a Body Mass Index (BMI) classified as overweight or obese. Data revealed most participants had a variety of misconceptions relating to weight loss and weight loss methods that were obscure …

Rural-Urban Variations In Meals On Wheels Programs, Lea C. Florence

Electronic Theses and Dissertations

Older adults are living longer than ever before. By 2060, the U.S. population aged 65 or older is projected to reach 98 million. As adults age, the prevalence of chronic diseases and disabilities increases. The need for Meals on Wheels (MOW) services is growing alongside the aging population. Yet, little is known about the geographic variation of services. Little is documented about the organizational capacity of MOW organizations in terms of geography. The current policies supporting home-and community-based services, including MOW, may be insufficient to support all older adults in all types of communities. An analysis of the More Than …

A Tale Of Two Species: Black-Tailed And White-Tailed Prairie Dog Biogeography From The Last Interglacial To 2070, April Dawn Bledsoe

Electronic Theses and Dissertations

Ecological niche models (ENMs) were created for White-tailed and Black-tailed prairie dogs and projected into the Last Interglacial (LI), the Last Glacial Maximum (LGM), and mid-Holocene (mid-H) to discern possible past suitable habitat for both species. Additionally, ENMs were projected into the future year 2070 representative concentration pathways (RCPs) 2.6 and 8.5 to discern how climate change may affect future habitat suitability. Kernel density estimations, minimum convex polygons, and median distribution centers of White-tailed and Black-tailed occurrence records were examined between time-periods to discern the effects of anthropogenic westward expansion on both species’ distributions. Current ENMs were constructed from commonly …

Attrition In A Holistic Job Skills Training Program: A Qualitative Study, Jeaniece Silas

Electronic Theses and Dissertations

Today thousands of individuals and families are unemployed or underemployed and are seeking ways to combat poverty and become employed. One way that individuals seek to gain employment is by attending job skills training and adult education programs. However, there are barriers that hinder those individuals from successfully completing the programs. The purpose of this study is to explore the experience of applicants of a nonprofit job skills training program called FaithWorks and explore the reasons why applicants were not able to continue and, or complete the program. This study was conducted, through qualitative interviewing of four participants (N=4) utilizing …

An Instrumental Case Study: Growth Mindset Instructional Best Practices For Learning Disabled Students, Brenda L. Cornell

Electronic Theses and Dissertations

The problem that drove this study was that students who struggle in school, especially those with a non-intelligence-based learning disability, suffer from a fixed mindset after years of feelings of failure in school. This mindset causes them to develop maladaptive approaches to learning that inhibit success. The purpose of this study was to describe the best practices of reading teachers who have a reputation for high student achievement and who adhere to a growth mindset in an effort to build a growth mindset culture with their students. This qualitative instrumental case study was conducted through interviews of eleven reading teachers/specialists …

Effects Of Increased Atmospheric Carbon Dioxide Levels On Tobacco Mosaic Virus And Root-Knot Nematodes In Genetically Resistant And Susceptible Tomato Plants, Angie Nicholas

Electronic Theses and Dissertations

Rising atmospheric carbon dioxide (CO₂) may affect plant/pathogen interactions. This study focused on the effects of elevated CO₂ on Root-Knot Nematode (Meloidogyne arenaria) and Tobacco Mosaic Virus (TMV) infection in genetically resistant versus susceptible tomatoes (Solanum lycopersicum). Both resistant and susceptible tomatoes were grown in chambers with either ambient CO₂ or CO₂ elevated to 750 ppm and infected with M. arenaria or TMV. Measurements were taken at regular intervals to determine the effects of the pathogens on the plants. Resistant plants infected with M. arenaria maintained resistance while susceptible plants remained …

The Effects Of Resistance Deception On Muscular Strength, Muscular Endurance, And Perceived Exertion, Broderick L. Dickerson

Electronic Theses and Dissertations

Resistance deception during training is a lightly researched topic and is seen as a modification that can potentially act on central control during exercise. Studies that have observed effects of deception while training have yielded mixed results. The effects of deception on strength, muscular endurance, and perceived exertion and the mechanisms of action that may elicit changes are still unclear. Therefore, the purpose of this study is to determine the effects of resistance deception on muscular strength, muscular endurance, and perceived exertion in a trained population. Eight participants finished the study and underwent four trials, one of which was a …

Increasing Healthy Lifestyle Behaviors In Cargo Drivers, Ronda L. Bell

Electronic Theses and Dissertations

The purpose of this project was to examine the extent to which lifestyle behaviors of transportation drivers in North Texas can be improved with health education. This research study was conducted to examine the health behaviors of transportation drivers as a result of an educational partnership between nursing and the transportation industry. The goal was to improve healthy lifestyles through education to decrease chronic illness and comorbid conditions of a significantly at-risk occupational population. The impact of this education was immediate and verified with quantitative measurement and statistical analysis. Results demonstrated that after nurse-led health education, transportation drivers reported significant …

The Effect Of Care Coordination On Hemoglobin A1c For Type 2 Diabetes Patients, Lee Ann Hinsky

Electronic Theses and Dissertations

The purpose of the study was to test the impact of care coordinator visits by primary care registered nurses on serum hemoglobin A1c (HbA1c) levels in patients with type 2 diabetes. In the study, the researcher compared 2 groups of type 2 diabetes patients—those who had care coordinator visits from registered nurses and those who did not—through retrospective data collection and analysis from the patients’ electronic medical record from July 2018 through December 2018. An independent samples t test was used to compare the means of the intervention and control groups’ change in HbA1c levels. The intervention and control groups …

Iron In Urban Air Pollution, Joseph R. Salazar

Electronic Theses and Dissertations

The processes by which iron is solubilized are largely unknown. There are three hypotheses on how iron is soluble: 1) iron is thought to undergo an acid based solubilization process, 2) iron undergoes an oxidation/reduction process and reduces iron(III) to the more soluble iron(II), and 3) iron is bound to organic molecules, which solubilizes it. The 3 hypotheses on iron water-solubilized are explored by presenting two individual studies.

The first study investigates iron directly from car exhaust. Exhaust particles were collected from 32 vehicles. Iron solubility in these samples ranged from 0%-82% with the average iron solubility being 30%. X-ray …

The Eu Ets: A Critical Analysis, Marceline Grey Swan

Electronic Theses and Dissertations

Carbon markets, established via cap & trade programs, are the dominant means by which climate stabilization is currently being pursued worldwide, with many centered around the European Union’s Emissions Trading Scheme. As such, a critical analysis of the EU ETS & its effectiveness is crucial to assess whether the EU carbon market is an effective mechanism to achieve climate stabilization. The effectiveness of the overall program was evaluated via a determination of whether the EU ETS, & to a greater extent the EU carbon market, has allowed for emissions reductions in line with the goal for climate stabilization set by …

Photographs In My Mind, Through Darkness And In Light: An Auto-Criticism Of A University Teacher, Melanie Renee Witt

Electronic Theses and Dissertations

This dissertation is an auto-criticism, a new qualitative inquiry founded in educational criticism and arts-based research, which describes and analyzes my lived experience as a female university teacher. The purpose of this study is to describe, interpret, evaluate and thematize my experiences with professional stress, pregnancy loss, and self-care. Secondly, it illuminates auto-criticism as a methodology with potential contributions to qualitative research and higher education.

Personal documents, internal artifacts, and external artifacts generated during a challenging period of my life as a university teacher are used as data. Language and photography combine to story my lived experiences and findings.

This …

The Experiences Of Ncaa Student-Athletes With An Eating Disorder Or Disordered Eating, Rachel E. Taylor

Electronic Theses and Dissertations

The purpose of this study was to explore the experiences of student-athletes who had an eating disorder or disordered eating (ED/DE) while competing for the National Collegiate Athletic Association (NCAA). Integrating criticism and connoisseurship and critical evocative portraiture, four post-collegiate women who participated in cross country and track, who were either clinically diagnosed with an ED/DE or who self-diagnosed, participated in two interviews to describe their experiences with and the impact of ED/DE on their athletic pursuits, academic pursuits, as well as their relationships with coaches, teammates, and family. The analysis of these interviews showed the complexity of this topic. …

Poverty In The United States: An Analysis Of Its Measurement And The Long-Term Social And Economic Costs, Abby Magnus

Electronic Theses and Dissertations

This thesis examines the role of poverty in the United States and how it has impacted social and economic systems. It explores how U.S. poverty measurements developed in the 1960s may not be accurately measuring poverty now, and the ways in which these measures could be improved upon. This work also reviews literature on health and educational inequities stemming from socioeconomic class, and the role these play in long-term economic mobility. Finally, it analyzes how larger social institutions like mass incarceration and capitalism have developed around poverty, and the role they play in maintaining its prevalence today. This thesis finds …

“The Gates Are Closed Here”: A Mixed Methods Study Examining The Lived Experiences Of Black South African Township Youth, Jason St. Mary

Electronic Theses and Dissertations

South African Black township youth encounter immense risks within their environment, with little opportunity for perceived success. The Langa Township, the oldest established segregated community in Cape Town, South Africa, is enveloped in massive unemployment rates, substantial poverty, and violent gangsterism. Extensive literature exists in North America on the relationship between positive youth development (PYD) and successful outcomes for young individuals, although there is limited research examining the framework in an international context. Due to historical oppression forced on South African youth, postcolonial theory provides a critical foundational component to PYD in the study. This mixed methods study examined the …