Digital Commons Network^™

Impact Of Virtual Models On Students’ Multilevel Understanding Of An Organic Reaction, Eli Martin

Theses and Dissertations

As the number of STEM opportunities and the need for a scientifically literate society increases, educators in STEM fields require tools that help support these needs. Chemistry is one STEM content area that would benefit from exploring educational technology that supports conceptual understanding. An action research study was conducted to understand how students engage with the content and virtual representation to develop their understanding of a chemical reaction. This convergent mixed methods study looked at the effect of dynamic virtual molecular representation on students' ability to understand a reaction mechanism at the symbolic and subparticulate level by measuring content knowledge …

Fourth-Grade And Fifth-Grade Cover-Band Classes: An Action-Research Project Inspired By Popular Music Education And Music Learning Theory, Julia Turner

Theses and Dissertations

I facilitated “Fourth-Grade and Fifth-Grade Cover-Band Classes,” a popular music education-, informal music learning-, and music learning theory-inspired action-research project. The purpose of this action-research project was to examine the facilitation and learning processes used by my students and me when engaged with those music learning approaches and theory. The guiding questions for this study included: 1) How do I use and adapt principles from modern band (2023), Green (2008; 2014), and Gordon (2012; 2013) to prepare my facilitation of a popular music project for my fourth-grade and fifth-grade students? and 2) How do my fourth-grade and fifth-grade students engage …

The Impact Of The Flipped Classroom Model On Elementary Students’ Achievement And Motivation For Learning Geometry, Kimberly M. Smalls

Theses and Dissertations

National and state data show students in poverty perform lower on math standardized assessments than their peers who are not students in poverty. The purpose of this action research was to evaluate the implementation of the flipped classroom model on the achievement and motivation towards mathematics for fourth-grade students at an elementary school in the Southeast United States. Traditional teaching methods such as teacher-led modeling, the use of manipulatives, and small-group math instruction present barriers which have not led to overall academic improvement for these students. This study focused on three overarching questions: (1) Is there a difference in fourth-grade …

Genomic Analysis Of Exophiala Sp. Etnp2018, A Marine Fungal Strain Isolated From An Oxygen Minimum Zone, Margaret Kelly Bernish

Theses and Dissertations

Microbial metabolic activity is central to biogeochemical cycling in virtually all ecosystems. Fungi are important parts of microbial communities, serving as decomposers, parasites, and symbionts. Most of our understanding of fungal ecology is derived from the study of isolated, cultured terrestrial fungi. However, the marine environment includes thousands of divergent, uncultured fungi. A number of these species, which include saprobes, parasites, and endophytes, can survive and sporulate in a wide range of salinities. Other such species face the additional challenge of limited nutrient accessibility. The genus Exophiala includes agents of mycoses in both humans and in marine animals. This research …

Risk Propensity In Journalists: An Analysis Of Journalists’ Personality Traits And How They Direct Behavior In The Field, Ellen Katherine Dunn

Theses and Dissertations

Much like first responders, journalists run toward dangerous scenes instead of away from them, often putting themselves at risk. Unlike first responders, there is no research on a how a person’s risk propensity ties to their career. For this project, reporters of various ages and tenures were surveyed on their sensation-seeking levels and propensity to engage in risky behaviors while working as journalists. Journalism risk propensity correlated positively with sensation seeking. Risk motivations increase with age and tenure, meaning that older and more experienced journalists are more likely to engage in risky behavior. Males are more risk-prone than females. The …

Exploration Into The Relationship Between Colitis And Depression: A Potential Role For The Aryl Hydrocarbon Receptor, Kasie Lynn Roark

Theses and Dissertations

Inflammatory Bowel Disease (IBD) is a group of chronic gastrointestinal disorders with unclear etiology comprised of two defined disorders – Crohn’s Disease (CD) and Ulcerative Colitis (UC). IBD leads to chronic pain, socially isolating symptoms, and an overall reduction in patient quality of life. There is currently no cure for IBD. Due to decreased mucous production and weakening of the colonic epithelial lining, gut-microbiota and their metabolites can invade the intestinal lamina propria and circulate systemically, a term known as “leaky gut”. Recent studies show a relationship exists between peripheral inflammation, such as IBD, and depression. The gut-brain axis (GBA) …

Implementation Of Digital Flashcards To Increase Content-Specific Vocabulary Knowledge And Perceptions Of Motivation And Self-Efficacy In An Eleventh-Grade U.S. History Course: An Action Research Study, Jill Lee Steinmeyer

Theses and Dissertations

Text- and document-dependent courses like high school U.S. History require students to have strong content literacy and vocabulary skills. Traditionally, content-area courses neglect vocabulary skills and those that do address vocabulary often teach words in isolation without context. Students needing more content comprehension skills frequently need more motivation and higher self-efficacy.

Three research questions were used to evaluate the impact of digital flashcards on learning content-specific vocabulary and student perceptions in an eleventh-grade U.S. History course: (a) How and to what extent do digital flashcards affect eleventh-grade U.S. History students’ learning content-specific vocabulary knowledge?; (b) How and to what extent …

Symphony No. V: Elements (Julie Giroux, 2018); An Overview Of Programmatic Elements And Performance Devices, Zackery Augustus Deininger

Theses and Dissertations

Julie Giroux is a multi-faceted composer who has been writing for the wind band since the 1980s. Having composed and arranged over 125 works for wind band, Giroux has dedicated her compositional career to furthering the development of the wind band repertoire while simultaneously working to establish the wind band genre as an area of serious artistic merit. Giroux is in constant demand as a commissioned composer. Her projects are often commissioned by distinguished ensembles, both in the United States and around the world, and many of her pieces receive performances at significant events such as The Midwest Clinic Band …

Nature As Culture: Ecofeminist Narratives Of Environmental And Colonial History, Sydney Leimbach

Theses and Dissertations

“Nature as Culture: Ecofeminist Narratives of Environmental and Colonial History” is a cross-cultural, comparative, feminist investigation of two films, The Nightingale and Wolfwalkers, and two books, The Giving Tree and The Overstory. The narratives are analyzed through a combination of ecofeminism and decolonial feminism, revealing the four narratives’ investment in the effects of colonization on the environment. The two chapters explore the association of women with nature, traditionally used as a subordinating position, instead as a condition of empathetic understanding with both the colonized and the environment. Further, these narratives use the association of women with nature as …

Aortopathies: Mechanism Of Pathogenesis And Therapy, Mengistu G. Gebere

Theses and Dissertations

The aorta is the largest artery in the body which is directly connected to the left ventricle of the heart and functions as an elastic conduit that transports the ejected blood from the left ventricle to peripheral vessels. There are three layers to the aortic wall, tunica intima, tunica media, and tunica adventitia. The tunica media, the thickest middle layer, is composed of vascular smooth muscle cells (SMC) and the extracellular matrix (ECM) as its essential components. SMCs are circumferentially arranged and embedded in elastic lamellae. They are responsible for producing and maintaining/remodeling the extracellular matrix of the aortic media. …

Targeting Macrophages In Cancer Models Using Natural Compounds, Sierra Jordan Mcdonald

Theses and Dissertations

Cancer remains a leading cause of death worldwide. More specifically, breast cancer (BrCa) and colorectal cancer (CRC) continue to be the most diagnosed cancers and leading causes of cancer-related death worldwide. Given that surgery followed by adjuvant chemotherapy is only effective in 20% of CRC patients, and that there are no preventive agents for BrCa metastasis for hormone receptor negative patients, more effective agents and strategies are needed in both the prevention and treatment of these cancers. As one of the most abundant immune cells in the tumor microenvironment, macrophages help regulate primary tumor growth, angiogenesis, and metastasis in many …

Kurt Vonnegut, A Difficult Feminist: Investigating Female Characters In Bluebeard, Matthew Steven Medl

Theses and Dissertations

After a brief contextualization of Vonnegut’s work, this essay close-reads his 1987 novel, Bluebeard, and locates the feminism within. I argue that Vonnegut establishes women as agents of generative change, breakers of marital conventions, artistic sages, authors, expressionists, interlopers, and nonviolent activists. I primarily examine Circe Berman and Marilee Kemp, supplementing with evidence from Edith Taft and Dorothy, as well as wider scholarship.

Biochemical, Structural, And Immunological Characterization Of Selected Panallergens, Andrea Leigh O'Malley

Theses and Dissertations

Allergies throughout the world are increasing in prevalence and severity. Although the direct causes of the development of allergies are not confirmed, study of proteins that cause reactions will lead to a deeper understanding of allergy. This work focuses on three panallergen families, profilins, parvalbumins, and arginine kinases, to further elucidate the background of allergy from the point of view of the allergens themselves. In Chapter 1, we evaluate pollen, fruit, and mite profilins in the context of allergy, showing the relevance of conserved cysteine residues in stability and oligomerization as well as the first data on cross-reactivity between plant …

Substance Use Disorders And The Behavioral Effects Of Novel And Existing Compounds, Sarah Uribe

Theses and Dissertations

These investigations aimed to study the effects of experimental compounds for use in treating and preventing substance use disorders, particularly opioid use disorder (OUD) and alcohol use disorder (AUD). Identifying and testing potential medications for these two diseases is critical since current FDA-approved medications are only modestly effective, and addiction continues to spread. We previously demonstrated that co-administration of morphine and MP-III-024 produced synergistic effects in hot plate and von Frey assays. This study evaluated whether MP-III-024 also produced synergistic effects in behavioral tests sensitive to the side effects of morphine. Our findings suggest that co-administration of morphine and MP-III-024 …

Developing Tools For Introducing Modifications Into The Chicken Genome, Zachary Eldon Olsen

Theses and Dissertations

The chicken is a classic model organism that has provided key insights into embryonic development. Chicken embryos can be directly manipulated and observed during development while retaining the potential to reach adulthood. Despite this benefit, the utility of the chicken in studying development has been limited by the difficulty of introducing genetic changes to the genome. The recent development of cell culture conditions for chicken primordial germ cells (cPGC) has made it feasible to produce transgenic chickens, but there is still a lack of tools for introducing genetic modifications into cPGCs. Recombinase Mediated Cassette Exchange (RMCE) is a technique that …

Identification Of Gap Junction Genes Involved In The Tail-Flip Escape Circuit Of Marbled Crayfish, Rajit S. Roy

Theses and Dissertations

Escape responses are highly stereotyped behaviors that enable organisms to avoid threats in their environment. To ensure the rapid and robust execution of these behaviors, they are often mediated by dedicated neuronal circuits with fast feed-forward signal propagation. Rectifying electrical synapses, which allow electrical current to preferentially flow only in one direction, are a hallmark of such circuits, and facilitate rapid and stereotyped neuronal signaling for fast, reflexive behaviors. In vitro studies have suggested that it is the heterotypic distribution of the gap junction proteins (called innexins in invertebrates), i.e., possessing different innexins in pre- and postsynaptic neurons, that enables …

Gyno-Gerontological Discourse And The Dearth Of Old Women Narrators In British Fiction 1790-1860, Lavender Elisabeth Earnest

Theses and Dissertations

This thesis explores the remarkable dearth of old woman narrators in British fiction between 1790 and 1860, both documenting their under-representation and explaining it as, in part, a product of a wave of medical discourse disparaging the physical and mental vitality of post-menopausal women. Regarding methodology, I perform a random sample upon a corpus of first-person novels published in the period and categorize each according to the gender and age of the narrator. This analysis exhibits, unsurprisingly, that most narrators in the dataset are either in the first half of their life, male, or both. Old women represent only a …

Delivering Computer-Based Training Within State Prisons, Kunal Jha

Theses and Dissertations

Internet-connected devices are ubiquitous, and our built environment allows us to tap into formerly impossible solutions. As our world increasingly depends on technology to operate, one demographic cannot gain exposure to internet-connected devices or web-based educational programs: incarcerated individuals. The Department of Justice reports that 5 out of 6 State Prisoners are arrested and returned to prison within nine years of their initial release. Research shows that education is a pathway to reducing the U.S. prison population. Individuals who participated in any educational program are 43 percent less likely to return to prison.1 Prisons in the United States often partner …

Evolving Literacy Practices In The Vocational-Technical High School Classroom: How Critical Literacy Frameworks Enhance Learning And Increase Student Reading Success In Cte, Alice A. Infranco

Theses and Dissertations

This paper provides a qualitative account of how Critical Literacy instruction fosters reading growth in vocational-technical school settings. This study examines how critical literacy enriches learning outcomes within Career and Technical Education (CTE). The findings are that Critical Literacy skills are necessary for all readers because they positively affect student engagement and participation in learning, especially if presented in a way that allows students to have an active role in their learning. Examples of how to integrate Critical Literacy instruction into CTE classrooms are presented and discussed. These instructional practices go beyond traditional reading comprehension skills. The conclusion is that …

Lynch Law In The Land Of Lincoln: African American Intellectuals And Early Twentieth Century Race Riots, John Patrick Pleming

Theses and Dissertations

Abstract: In the early twentieth century, more and more African Americans began to leave the American South in search of better jobs and more equal treatment in the North. These black migrants found a less rigid racial hierarchy and employment in industrial and domestic settings. However, racism in the North was alive and well. As African American communities began to exert their economic and political power, they were often targeted by white mobs who would rampage through black neighborhoods, killing and burning as they went. In response to race riots in Springfield (1908), East St. Louis (1917), and Chicago (1919), …

Sustainably Providing Accurate Local River Discharge Data With Global Hydrologic Modeling And Bias Corrections, Riley Chad Hales

Theses and Dissertations

The Global Water Sustainability Initiative of the Group of Earth Observations (GEOGloWS) supported an initiative to develop a global hydrologic model. The purpose of the modeling initiative is to build a high-quality model using the best available datasets and modeling methods with the primary emphasis on accessibility of the model. The goal is to make the model a sustainable source of river discharge information to supplement the capacity of those countries without the local capacity to maintain sufficient gauge networks and local modeling capabilities and cyberinfrastructure. Past research developed a modeling approach and piloted implementations and data and visualization services …

Assessment Of Largemouth Bass (Micropterus Salmoides) Condition Using Liver Histopathology, Health Parameters And Water Quality Of The Central Chattahoochee River Watershed, Kari Carmack Goodwin

Theses and Dissertations

The health of Largemouth bass from west-central Georgia was assessed using liver histopathology and the degree of tissue change index (DTC), hepatosomatic indices (HSI), relative weight, condition factors, and intersex. These health parameters as well as water chemistry data were compared across four bodies of water, three within the Chattahoochee watershed, and one pseudo-control located in the Flint watershed. Fish from Lake Oliver, Lake Harding, and West Point Lake had severely impacted liver health compared to Warm Springs National Fish Hatchery, with DTC rankings over 100 for the three lakes within the Chattahoochee watershed, demonstrating severely damaged livers. There was …

Parenting Characteristics And The Development Of Self-Compassion: A Look At Self-Warmth And Self-Coldness, Meghan Rogers

Theses and Dissertations

Self-compassion, which reflects a kind stance towards oneself when suffering, is related to a whole host of positive outcomes from decreased anxiety (Neff & McGehee, 2010; Raes, 2010; Temel & Atalay, 2018) and depression (Neff & McGehee, 2010; Raes, 2010; Steindl et al., 2018; Temel & Atalay, 2018) to increased happiness (Neff et al., 2007b; Wei et al., 2011). It is important, therefore, to understand how an individual develops self-compassion. Parenting characteristics have been shown to be associated with later self-compassion and may therefore be related to its development. In addition, self-compassion has recently been conceptualized as having two different …

A Hedonic Analysis Of Thoroughbred Horses In Online Auctions, Madalynn Nicole Camp

Theses and Dissertations

A horse’s lifespan ranges from 20 to 30 years while a Thoroughbred racehorse’s career averages just 4.45 years. According to the American Horse Council Foundation, 33% of the horses in the United States are involved in the racing industry. Upon retiring from racing, Thoroughbreds have the option of being kept as breeding stock or sold to equestrians in the non-racing sector to begin second careers. Retired Thoroughbred racehorses may prove to be a great investment for equestrians wanting an athletic horse for an affordable price and provide a second career track for these retired racehorses. This study aims to analyze …

Atmospheric Polarization And Solar Position As Kalman Updates To A Navigation Solution, Thomas J. Wheeler

Theses and Dissertations

Simulation and physical testing of a sensor that measures relative position of the Sun and polarization of light in the atmosphere as a navigational aid in a Kalman filter.

Decontamination Of Perfluoroalkyl Substances From Stainless Steel Piping Used In Aqueous Film Forming Foam Fire Suppression Systems, Ryan M. Register

Theses and Dissertations

This study examines the removal of perfluoroalkyl substances (PFAS) from legacy hangar fire suppression systems which utilized PFAS containing aqueous film forming foam (AFFF). Hundreds of these systems are currently in place throughout the Department of Defense, with planned phase-out occurring by 2024. The estimated cost of replacing these systems is $2.1 billion dollars. To mitigate this cost, a triple-rinse method of decontamination has been proposed. This thesis explores the release of PFAS from AFFF systems during a triple-rinse decontamination, and the continued removal of PFAS after a triple-rinse is complete while simultaneously analyzing methylene blue dye as a potential …

Probability Of Agreement As A Simulation Validation Methodology, Matthew C. Ledwith

Theses and Dissertations

Determining whether a simulation model is operationally valid requires the rigorous assessment of agreement between observed functional responses of the simulation model and the corresponding real world system or process of interest. This research seeks to extend and formulate the probability of agreement approach to the operational validation of simulation models. The first paper provides a methodological approach and an initial demonstration which leverages bootstrapping to overcome situations where one’s ability to collect real-world data is limited. The second paper extends the probability of agreement approach to account for second-order heteroscedastic variability structures and establishes a weighted probability of agreement …

Investigating Heterologous Transgene Expression In N. Crassa, James Christopher Mierendorf

Theses and Dissertations

First adopted as a model organism by Shear and Dodge in 1927, the filamentous fungus Neurospora crassa is among the most well studied eukaryotic systems today, facilitating major discoveries in genetics, biochemistry, and molecular biology. The sequencing of the Neurospora genome was completed in 2003, which combined with the organism’s fast growth, simple culturing requirements, and haploid life cycle, make it a particularly attractive model system. Despite these advantages, Neurospora crassa’s research value is diminished by its recalcitrance to expressing ectopic sequences incorporated into its genome. As a result, molecular techniques requiring heterologous expression (such as CRISPR) are largely incompatible …

The Effects Of Introversion And Treatment Delivery Modality On Therapeutic Outcomes In A Community Mental Health Clinic, Maria Olga Consbruck

Theses and Dissertations

Objective: The present study examines the effectiveness of teletherapy services for individuals with varying levels of introversion. This study also investigates the comparability of teletherapy to in-person services provided by clinicians in training. Introduction: Virtual platforms, such as teletherapy, have exponentially increased in use by clinicians and community members due to the Covid 19 pandemic. The pandemic has illuminated surprising secondary benefits of teletherapy. Research has shown that teletherapy results in greater accessibility, feasibility, and acceptability of treatment. Teletherapy platforms can reach remote and rural communities, and better address financial and time barriers. Current research indicates that teletherapy services are …

Student Performance In Traditional In-Person Vs. Online Sections Of An Introductory Graduate Mathematics Course, Lauran E. Kittle

Theses and Dissertations

The growth of technology impacts nearly every aspect of everyday life, to include education and learning. The availability of distance learning (online) classes has increased drastically in the last few decades, expanding access to education for millions of people. However, it is imperative to consider exactly how the growth of technology impacts education – whether it is a positive, negative, or neutral impact. Previous research comparing distance learning and in-residence (traditional) classes have widely mixed, disparate conclusions. This type of research, two-stage analysis, and modeling has yet to be conducted on a graduate school level. For this reason, a detailed …