Digital Commons Network^™

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 …

Escaping The Arrhenius Tyranny: Metabolic Compensation During Exposure To High Temperature In Daphnia, Bret L. Coggins

Electronic Theses and Dissertations

Poikilothermic organisms experience trade-offs by differential physiological demands generated by temperature extremes. Many such organisms exhibit acclimatory effects, adjusting their metabolism and physiology to recently experienced temperatures. One such acclimatory effect is metabolic compensation, the deceleration of biological rates below Arrhenius expectations. Daphnia magna is eurythermal, and if acclimated to mildly stressful temperatures first, survives longer in lethal temperatures. This study examined the effect of ambient temperature (5°C-37°C) and acclimation history (lifetime at 10°C or 25°C) on the oxygen consumption rates of 8 genotypes of Daphnia with high or low acute temperature tolerance. There were decelerations of respiratory rates across …

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. …

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 …

Identification Of “Fhua” Like Genes In Rhizobium Leguminosarum Atcc 14479 And Its Role In Vicibactin Transport And Investigation Of Heme Bound Iron Uptake System, Sushant Khanal

Electronic Theses and Dissertations

Siderophores are low molecular weight, iron chelating compounds produced by many bacteria for uptake of iron in case of iron scarcity. Vicibactin is a trihydroxamate type siderophore produced by Rhizobium leguminosarum bv. trifolii ATCC 14479. This work focuses on identifying an outer membrane receptor involved in the transport of vicibactin. We have confirmed the presence of the putative fhuA gene in R. leguminosarum bv. trifolii ATCC 14479. This bacteria shows mutualistic symbiosis with the red clover plant Trifoliium prantense. Leghemoglobin, with its cofactor heme is present in the plant root nodules that surrounds the infecting organism present in the nodules. …

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 …

A Phenomenological Study On Teacher Perception Of Change In School Culture As A Result Of The Implementation Of Mindfulness, Justin Penley

Electronic Theses and Dissertations

A qualitative investigation was conducted to explore the phenomenon of teacher perception of change in school culture as a result of the implementation of mindfulness. This study used a phenomenological methodology, enabling the researcher to gather information by focusing on and describing the impact of mindfulness on school culture in a deep comprehensive manner.

The investigator was able to extract meaning and code data, leading to the emergence of themes that supported and aligned with the study’s research questions and thus led into a holistic understanding of the phenomenon. This was accomplished through data analysis of rich, in-depth interviews, onsite …

Success Rates Of Second Semester Anatomy Students In Online And On-Ground Classes At A Community College In East Tennessee, William Sproat

Electronic Theses and Dissertations

Educators expect the number of institutions offering online courses and the number of students enrolling in these courses to increase as many students, particularly nontraditional students, discover the advantages of online content delivery. Online courses require new methods of communication between students and faculty as well as discovering new ways to build relationships, earn student trust, conduct appropriate assessment, and deliver useful course content. Many institutions—public, private, and for-profit—offer a wide variety of online coursework but faculty, employers, and the public have expressed concerns about the quality of online course content. In particular, online delivery of coursework in the natural …

Exploration Of Rape Myths Among Former Military Professionals, Gabrielle Caldara

Electronic Theses and Dissertations

Sexual violence is sometimes considered a taboo topic for discussion, but it gained widespread attention in the media in late 2017 due to the social movements addressing the sexual assault of women. However, sexual violence perpetrated against men lacks publicity in America, and highlights a similar situation in the Armed Forces. A discussion of sexually violent acts committed against men is sometimes impeded by cultural norms. This discrepancy associated with civilian and military communities inspired this exploratory study.

A convenience sample of 520 former American military professionals completed an anonymous online survey to describe their attitudes and beliefs regarding rape …

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 …

The Talk: Christian Right And Liberal Left Rhetoric About Sex Education, True Neal

Electronic Theses and Dissertations

This thesis examines the rhetoric surrounding sex education crafted by two major types of advocacy groups: the Christian Right and the Liberal Left. I conducted a qualitative analysis of content on sex education produced by six high-profile organizations: The Heritage Foundation, Family Research Council, Focus on the Family, American Civil Liberties Union, the Guttmacher Institute, and Planned Parenthood. I found that these polarized organizations do not debate each other; instead, they focus on parents whose political leanings match their own. Sex education is at the center of other issues that also divide the Christian Right and the Liberal Left: healthcare, …

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 …

Precalculus And Act: A Quantitative Study Of Five Tennessee High Schools, Michelle R. Phipps

Electronic Theses and Dissertations

The purpose of this study was to determine if students scored significantly higher on the ACT after taking precalculus than they had scored on the ACT prior to taking precalculus. The researcher investigated whether there is an increase, not only in ACT composite scores, but also in ACT math subtest scores after high school students completed a precalculus course. The researcher also investigated differences regarding gender, socio-economic status, and race.

Five Tennessee high schools from four counties and five different districts were used in this study. The study involved 208 participants and covered a span of three years. The findings …

The American And Swedish Criminal Justice System: A Comparative Study, Josefin Hedstrom

Electronic Theses and Dissertations

Hosting 22 percent of the world’s prison population, the United States is the number one country in the world regarding incarceration rates where 1 in 109 adults are locked up behinds bars and about two-thirds of offenders will recidivate within three years of their release (Durose, Coope, & Snyder, 2014; Kaeble, Glaze, Tsoutis, & Minton, 2016; U.S. Census Bureau, 2015; Walmsley, 2013). Sweden has one of the lowest recidivism and incarceration rates in the world where only 29 percent reoffend and 1 in 2,278 of their total population is behind bars (Kriminalvården, 2017; The World Bank, 2016). The purpose of …

Bertha Harris' Confessions Of Cherubino: From L'Ecriture Feminine To The Gothic South, Kara Russell

Electronic Theses and Dissertations

Inspired by her obsession with the South and informed by the liberating socio-political changes born from the 1970s lesbian feminist movement, North Carolinian author Bertha Harris (1937-2005) provides a poetic exploration of Southern Gothic Sapphism in her complex and tormented novel Confessions of Cherubino (1972). Despite fleeting second-wave era recognition as “one of the most stylistically innovative American fiction writers to emerge since Stonewall,” Harris’s innovation remains largely neglected by readers and cultural theorists alike. Nearly all academic engagements with her work, of which there are few, address her 1976 novel Lover. Instead, this thesis focuses on Confessions of Cherubino …

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 …

Context, Delivery, And Providers’ Perspectives Of Family Life Education In Tn, Usa, Ruby Yadav

Electronic Theses and Dissertations

In 2015, TN had the 9^th highest teen birth rate in the United States. School-based sex education programs have shown promise in curbing teen pregnancy rates. In TN public schools, sex education could be taught by teachers of subjects like biology, health education, or invited guests from ministries, or national or local nonprofit agencies. The content, rigor, and approach of sex education taught by these diverse groups of providers remains unknown. This pilot study tested a survey questionnaire and methodology, while providing information on the providers’ sex education practices and perspectives.

We adapted validated measures from past sex education …

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 …

A Role Of Vitamin B2 In Reducing Amyloid-Beta Toxicity In A Caenorhabditis Elegans Alzheimer’S Disease Model, Muhammad Tukur Ameen

Electronic Theses and Dissertations

Alzheimer’s disease (AD) is associated with amyloid-beta peptide deposition and loss of mitochondrial function. Using a transgenic C. elegans AD worm model expressing amyloid-beta in body wall muscle, we determined that supplementation with either of the forms of vitamin B₂, flavin mononucleotide (FMN) or flavin adenine dinucleotide (FAD) protected against amyloid-beta mediated paralysis. FMN and FAD were then assayed to determine effects on ATP, oxygen consumption, and reactive oxygen species (ROS) with these compounds not significantly improving any of these mitochondrial bioenergetic functions. Knockdown of the daf-16/FOXO transcriptional regulator or the FAD synthase enzyme completely abrogated the …

The Combined Neuropharmacology And Toxicology Of Major 'Bath Salts' Constituents Mdpv, Mephedrone, And Methylone, Serena Allen

Electronic Theses and Dissertations

The synthetic cathinones, 3,4- methylenedioxypyrovalerone (MDPV), 4-methylmethcathinone (mephedrone), and 3,4- methylenedioxymethcathinone (methylone), gained worldwide notoriety as the psychoactive components of ‘bath salts;’ a marketing term used to circumvent federal drug laws and permit their legal sale. Previous studies have shown that these drugs share pharmacological characteristics with cocaine and the amphetamines, however, descriptions of their neurotoxic properties are limited. Moreover, while forensic analysis has revealed that the most frequently abused bath salts ‘brands’ contain binary and ternary mixtures of MDPV, mephedrone, and methylone, the majority of preclinical research has focused on explicating the individual effects of these drugs. Therefore, the …

Diel Rhythmicity Found In Behavior But Not Biogenic Amine Levels In The Funnel-Web Spider Agelenopsis Pennsylvanica (Araneae, Agelenidae), Alexander E. Demarco

Electronic Theses and Dissertations

Quantifying individual differences in behavior and the extent that behavior is influenced by circadian control is of paramount importance in behavioral ecology. In addition, the proximate mechanisms underlying behavior are also critical in order to obtain a more complete picture of how behavior evolves. Biogenic amines (BAs) are simple nitrogenous compounds derived from amino acids and have been consistently and extensively linked to behavior. For this study, we analyzed temporal patterns of BAs in relation to the antipredator (boldness) and aggressive behavior in female Agelenopsis pennsylvanica, a funnel-web spider. Using HPLC-ED, we compared behavioral responses to temporal patterns of …

The Effect Of Alcohol Consumption On Adipokine Secretion, Ashley Degroat

Electronic Theses and Dissertations

Alcoholic Fatty Liver Disease (AFLD) is caused by excessive alcohol consumption and is a leading cause of liver related mortalities, with currently no treatments available. The goal of this project was to establish the effect of alcohol consumption on adipose tissue-derived secreted factors, adiponectin and C1q TNF Related Proteins 1-3 (CTRP1-3). We propose that excessive alcohol consumption will reduce circulating levels of adiponectin and CTRPs 1-3. Mice were fed a Lieber-Decarli control or alcohol diet for 10-days with a gavage (NIAAA model) or 6-weeks with no gavage (chronic model). Serum and adipose tissue were collected and CTRPs 1-3 and adiponectin …

Assessment Of Adoptive Families' Adjustment Post Adoption, Madison Allen

Electronic Theses and Dissertations

The purpose of this study was to determine the existing state of parent-child adjustment post-adoption of adults that have adopted children through New Horizons. A total of 46 parents who adopted a child from New Horizons between September 1, 2016, and August 31, 2017, were contacted and 14 parents participated. The participants were asked to answer demographic questions, a Strength and Difficulty Questionnaire, a Parental Stress Scale Questionnaire, and questions about services via a phone interview. The study found that there was a direct relationship between the age of the child at the time of adoption and internalizing problems. Approximately …

You Are What You Wear: Clothing And American Authors Of The Early 20th Century, Alyssa Quinn Johnson

Electronic Theses and Dissertations

Though clothes are often said to “make the man,” they are not frequently said to build a character. This thesis explores the ways in which clothing was a performative tool for those who wore it during the 1920s in America as well as for authors who wrote about this world in which they lived. This study’s theoretical framework is inspired by Judith Butler’s concept of the performative; it is also influenced by historical research into the clothing of the 1920s. Primary texts explored include F. Scott Fitzgerald’s The Great Gatsby and Tender Is the Night, Nella Larsen’s Quicksand, and …

An Exploration Of Barriers To Health Care Access Among Uninsured Patients: Using The Moderating Effect Of Patients’ Enablement, Enedelia L. Jessup

Electronic Theses and Dissertations

ABSTRACT On March 23, 2010, Congress passed the Patient Protection and Affordable Care Act (ACA) to increase value of care, improve clinical outcomes, decrease health care costs, and increase affordability in health care access. The purpose of the study attempts to examine the moderating effects of patient enablement impacting barriers, low socio economic status, and unmet basic needs, toward health care access in uninsured populations post ACA. Only certain aspects of patient enablement in self-management of an individual’s health care goals have been conducted with uninsured populations with barriers toward health care access. The research design was a quantitative, exploratory, …

Tidal Creek And Substrate Effects On Oyster Reef Associated Fish And Decapod Condition And Density, Thomas S. Funk

Electronic Theses and Dissertations

Oyster reefs are essential fish habitat and a worldwide loss of reefs has the potential to negatively affect reef-associated nekton populations. Along the 100 km Myrtle Beach, SC shoreline, oyster reefs ostensibly have disappeared within swash tidal creeks, which are anthropogenically altered estuarine systems that drain into the coastal ocean directly over shoreline beaches. To address oyster reef losses, a series of shell bag reefs were constructed within multiple swash tidal creeks. Reefs also were constructed in tidal creeks associated with estuaries directly connected to the ocean by an inlet. The purpose of this study was to compare nekton usage …

Survey Of Rickettsia Spp. In Ticks In Nacogdoches County, Texas, Nathaniel Blakley

Electronic Theses and Dissertations

Rickettsia parkeri is an obligate intracellular pathogenic bacterium that is commonly transmitted by the Gulf Coast tick, Amblyomma maculatum. Rickettsia parkeri is the causative agent of Rickettsia parkeri rickettsiosis, which is a disease characterized by nonspecific symptomology. Significant effort by numerous research groups focuses on determining the geographic distribution of potential vectors of this pathogen. The purpose of this study was to study A. maculatum populations in Nacogdoches County, Texas, for the presence of Rickettsia parkeri. Over a two-year period, 49 ticks were collected in Nacogdoches county and taxonomically identified. The DNA was extracted using DNeasy Blood and Tissue …

Schizotypy And Health Promotion: The Mediating Role Of Depressive Symptoms, Michael Rice

Electronic Theses and Dissertations

Introduction: In general populations, schizotypy and depressive symptoms may be present at sub-clinical levels. Previous research has shown that schizotypy may negatively associate with underlying factors of health promotion. Furthermore, depressive symptoms have also been shown to negatively correlate with underlying factors of health promotion. Method: Undergraduate students and Mturk users were asked to complete an online questionnaire consisting of surveys measuring schizotypy, depressive symptoms and health promotion. Results: A meditation model showed a significant negative indirect effect of schizotypy through depressive symptoms on health promotion. Additionally, schizotypy positively predicted health promotion when depressive symptoms were controlled. …