Digital Commons Network^™

Changes To Water Quality And Discharge In An Urban Stream In Southwest Jefferson County., Karina Henson

Electronic Theses and Dissertations

Mill Creek is the largest watershed in Southwest Jefferson County, where thousands of people live and work. Streams in the watershed have historically been channelized and altered to promote drainage, and stream health is of major concern. Louisville MSD is currently developing a watershed plan for Mill Creek by seeking understanding of current stream conditions. This paper will focus on historical trends in stream discharge and water quality. Peak and daily discharge, dissolved oxygen, specific conductance, and temperature data from USGS gages at Mill Creek and the Mill Creek Cutoff was analyzed to understand how water quality and flow rates …

Cannabidiol Tweet Miner: A Framework For Identifying Misinformation In Cbd Tweets., Jason Turner

Electronic Theses and Dissertations

As regulations surrounding cannabis continue to develop, the demand for cannabis-based products is on the rise. Despite not producing the psychoactive effects commonly associated with THC, products containing cannabidiol (CBD) have gained immense popularity in recent years as a potential treatment option for a range of conditions, particularly those associated with pain or sleep disorders. However, due to current federal policies, these products have yet to undergo comprehensive safety and efficacy testing. Fortunately, utilizing advanced natural language processing (NLP) techniques, data harvested from social networks have been employed to investigate various social trends within healthcare, such as disease tracking and …

Secondary Educator And Administrator Perceptions Of Positive Behavior Interventions And Supports And Student Academic Achievement, Cynthia Everitt

Electronic Theses and Dissertations

This qualitative study addresses secondary educator perceptions of Positive Behavioral Interventions and Supports (PBIS) and student academic achievement. PBIS is a proactive approach with a multitiered framework. When used properly, PBIS can be a tool for school faculty to establish behavioral expectations and procedures, prevent disruptive behavior, and improve the school climate and culture. This phenomenological study was conducted using two secondary schools in West Virginia. Participants were identified and chosen through purposive sampling techniques according to their years of experience teaching and utilizing PBIS interventions.

The data for this study included unstructured, open-ended interviews based on three research questions. …

“Just As Scared As I Am”: Daughters’ Perspectives Of The Impact Of The Overturning Of Roe V. Wade On Mother-Daughter Reproductive Conversations, Casadie Smith

Electronic Theses and Dissertations

Existing literature has identified mothers as the primary reproductive educators of their daughters and has determined mother-daughter conversations about reproduction to be an indicator of daughters’ sexual and reproductive behaviors. The overturning of Roe v. Wade on June 24, 2022, had an immediate impact on the reproductive lives of many people, including daughters. Through one-on-one interviews with 10 daughters, this qualitative study identifies three changes in mother-daughter reproductive conversations that were influenced by the overturning of Roe v. Wade: (a) The initiation of conversations, (b) the topics of conversations, and (c) the tone of these conversations. The results of this …

Navigating Cultural Crossroads: Exploring Fictional And Interview Narratives Of Nigerian Immigrant Women Living In The Southern United States, Tolulope Adeusi

Electronic Theses and Dissertations

Nigerian immigrant women undergo constant navigation of their personal identities when conflicting cultural dynamics sometimes engender a balancing act between their personal beliefs and the ongoing process of acculturation. Their new Southern environment offers its own traditional mores, as well as greater opportunities for economic advancement. This places Nigerian Immigrant Women in a position where they must reconcile their desires for personal independence and empowerment with societal expectations that emphasize more traditional gender roles. This study explores the interview narratives of Nigerian immigrant women, reinforced by fictional accounts from prolific African women writers, which provides a more nuanced discussion of …

Lightweight Blockchains And Their Network Impact On Vehicular Ad-Hoc Network-Based Blockchain Applications, Edgar Bowlin

Electronic Theses and Dissertations

Vehicular Ad-hoc Networks (VANETs) provide networks for smart vehicles and will enable future systems to provide services that enhance the overall transportation experience. However, these applications require consideration to possible damage to both property and human life. Communication between vehicles requires data immutability and user privacies to provide safe operation of the system. Blockchains can provide these properties and more to create a more secure and decentralized system. However, a chain’s security comes from the chain length. VANETs’ ephemeral connections provide harm limits how much data can be exchanged during vehicle rendezvous. This thesis investigates lightweight blockchains that operate with …

Tennessee Promise And Two-Year Community College Retention And Graduation In Rural Appalachia, Tammy Dycus

Electronic Theses and Dissertations

The purpose of this quantitative, non-experimental study was to explore the relationship between the implementation of the Tennessee Promise scholarship program and the two-year Tennessee community college retention rates and graduation rates of first-time, full-time Tennessee students from rural Appalachian counties. Results from this study may help higher education stake-holders better understand the features of Tennessee Promise that are influencing an increase in community college retention and graduation rates for Tennessee students from rural Appalachian counties. The theoretical framework that guided this research was the social capital framework. Data including use of Tennessee Promise, county of origin, retention, and graduation …

Investigation Of The Protein Components In A Periplasmic Mechanism Regulating Bacterial Morphology, Alexandra Pulliam

Electronic Theses and Dissertations

Salmonella is a leading bacterial cause of foodborne illness worldwide. During a previous study investigating the enzymes responsible for regulating cyclic-di-GMP concentrations, a mutant in the cyclic-di-GMP-specific phosphodiesterase STM3615 was identified that displayed a phenotype characterized by decreased survival on agar plates and a shorter bacterium length. I was able to determine that the periplasmic domain of STM3615 was responsible for this phenotype, not the enzymatic phosphodiesterase domain. Based upon a bioinformatic analysis of the protein, I then hypothesized that the periplasmic domain of STM3615 was interacting with a periplasmic protein to give rise to this phenotype. To identify this …

A Low Cost, Compact Electrochemical Analyzer Based On An Open-Source Microcontroller, Michael Kofi Darko Addo

Electronic Theses and Dissertations

Compared to other instruments for chemical analyses, electrochemical analyzers are relatively simple, inexpensive, easy to miniaturize and require little-to-no maintenance. However, like all commercially available instruments, commercial electrochemical analyzers like potentiostats primarily operate as black boxes with manufacturers providing little or no information about internal circuitry and programming. This practice can limit a researcher’s ability to develop new techniques or adapt an instrument for applications outside its typical use. In contrast, creators of open-source instruments release all the necessary information for reproduction of the hardware and software – minimizing such barriers to innovation in chemical analyses. Here, we report a …

Femoral Osteohistology In American Alligators (Alligator Mississippiensis) Reveals High Variation In Growth And Facilitates Interpretation Of An Early Pliocene Alligator, Davis Gunnin

Electronic Theses and Dissertations

Histological analysis of long bone thin sections is commonly used to infer growth rates and ecology of extinct vertebrates, particularly within Archosauria. However, most comparative neontological studies have used small samples of captive individuals, limiting the scope of variation. To fill this gap, 44 femoral thin sections of wild Alligator mississippiensis were prepared and analyzed. Comparison of slides revealed that larger individuals from cooler climates tend to show more LAGs compared to southerly A. mississippiensis of similar size, however, there is considerable variation. This pronounced variation in wild specimens emphasizes the need to use caution when interpreting paleohistological data with …

Overdose Prevention Behaviors And The Rural Risk Environment Among People Who Inject Drugs In Rural Appalachia, Jody Teel

Electronic Theses and Dissertations

Introduction: The entire United States has felt the effects of the overdose epidemic, but rural Appalachia has experienced disproportionate overdose deaths. This variation in overdose mortality can be attributed to the risk environment for overdose in rural Appalachia. Overdose prevention behaviors are individual level behaviors that people who inject drugs can implement that may have the potential to reduce their risk of overdose, however limited research exists regarding the utilization of those behaviors. It is important to consider how the risk environment can influence the utilization of overdose prevention behaviors among people who inject drugs. Therefore, the purpose of this …

Sexual Trauma, Health, And The Moderating Effect Of Psychological Flexibility And Inflexibility, Gabrielle A. Caselman

Electronic Theses and Dissertations

Sexual trauma is linked to adverse health outcomes (e.g., D’Andre et al., 2011). Given the negative sequelae of sexual trauma, exploration of factors that influence the relation between sexual trauma and health outcomes is crucial. Current literature suggests that psychological flexibility and inflexibility may be factors in promotion of individuals’ health or pathology (e.g., Gloster et al., 2017). The current study sought to explore the variability in psychological flexibility and inflexibility among participants and the potential moderating effects of psychological flexibility and inflexibility on the relation between sexual trauma and both mental and physical health outcomes.

Moderation analyses failed to …

Effects Of Environmental Pollutants On Liver Disease: Role Of The Gut-Liver Axis., Ngozi Victoria Adiele

Electronic Theses and Dissertations

Polychlorinated biphenyls (PCBs) and polystyrene (PS) microplastics are environmental pollutants associated with various diseases including toxicant associated fatty liver disease (TAFLD). Previously, exposure to Aroclor 1260 (a PCB mixture) has been shown to exacerbate TAFLD, partly through Aroclor 1260 induced gut dysbiosis. Studies has also demonstrated that PS exposure alters gut microbiome composition and induced obesity. However, the effects of Aroclor 1260 on the gut and the effects of PS on the liver are still understudied. Therefore, we hypothesize that environmental pollutants will disrupt the gut-liver axis through changes in gut and its microbiome as well as changes in liver …

Co-Flowering Community Effects On The Relative Contribution Of Pollen Quantity And Quality Limitation To The Reproductive Success Of Four Clarkia Species, Emma Moore

Electronic Theses and Dissertations

More than 60% of plant populations experience low pollen availability which limits seed production (pollen limitation). Pollen limitation occurs due to low quantity or quality of pollen delivered to stigmas. Despite its ubiquity in nature, to date we still have limited understanding of the drivers of pollen limitation in plant communities. Plants typically occur in diverse communities where pollinator sharing is common and can influence quality and quantity aspects of pollen limitation. Co-flowering species can attract larger numbers of pollinators or they can compete for pollinators affecting pollen loads on stigmas. Pollinator competition may also lead to higher rates of …

School-Wide Academic Outcomes And Instructional Modality Used During The 2018-2022 School Years, Matthew Bowser

Electronic Theses and Dissertations

The purpose of this quantitative study was to determine if there was a significant relationship between school-wide academic outcomes and the instructional modalities utilized by public schools during the 2019-2022 school years. This study also determined if there was a significant difference in assessment scores earned by public school students in Tennessee before and after the shift from in-person schooling caused by the COVID-19 Pandemic. The researcher used a chi-squared test for independence to determine if there was a significant relationship between the modality of instruction used within a school during the 2020-2021 and 2021-2022 school years and the school-wide …

Linguistic Features Of Metaphor, Metonymy And Narrative Gap In “The Yellow Wallpaper:” A Literary Analysis, Sherry Kaye Ms.

Electronic Theses and Dissertations

In 1890, Charlotte Perkins Gilman wrote a piece of fiction that reflected her personal experience for treatment of nervous exhaustion. The story she developed created controversy and comment after it was published and, years later, agitation among feminists who found allegories of truth in its narrative. This thesis explores the use of linguistic features employed by Gilman to establish cognitive connections between physical structures and social institutions, such as marriage and domesticity, that confine women within contractual obligations. Gilman’s use of extended metaphor challenges conventional conceptions of the home, inanimate objects, and institutional authority and her use of metonymy extrapolates …

Effects Of Parental Deployment On Military-Connected High School Students And Strategies For Academic Success, Sean T. Lucas

Electronic Theses and Dissertations

Abstract The problem investigated in this study was unknown opportunities that exist for educators to meet the academic needs of students who are affected by combat parental deployment and how this challenge of combat deployment disrupts the family’s dynamic, thus challenging their children academically. The Air Force, Army, Navy, Marines, and Coast Guard made up about 1% of the total United States population in 2015. Most of these people were married, 42% had children, and 54% of their children were in kindergarten to 12th grade. The Department of Defense school system is comprised of 166 accredited schools across 11 foreign …

Acute Responses To Combined Accentuated Eccentric Loading And Rest Redistribution, Sungwon Chae

Electronic Theses and Dissertations

This dissertation was 2 parts of investigations of various acute responses to high-volume combined accentuated eccentric loading and rest redistribution (AEL + RR). Resistance-trained men (n = 12, 25.6 ± 4.4 years, 1.77 ± 0.06 m, 81.7 ± 11.4 kg) completed a back squat (BS) 1 repetition maximum (1RM) and weight releaser familiarization session. Three BS exercise conditions (sets × repetitions × eccentric/concentric loading) comprised AEL + RR 5: 3 × (5 × 2) × 110/60%, AEL + RR 2: 3 × (2 × 5) × 110/60%, and traditional sets (TS): 3 × (1 × 10) × 60/60% 1RM. The …

Impacts Of Urbanization On Pollination Success For Common Milkweed (Asclepias Syriaca), David Rockow

Electronic Theses and Dissertations

Urbanization is among the greatest threats to biodiversity on the planet, and is projected to increase in magnitude in coming years. This growing threat makes it important to better understand how urbanization may impact vital ecosystem services, such as pollination. Studies on the impact of urbanization on pollination vary wildly in their findings. This study analyzed multiple aspects of pollination success in common milkweed populations varying in urbanization level, including insect community composition, pollen removal/deposition, and fruit/seed production. By analyzing multiple pollination aspects we can determine the overall mechanism in which urbanization instills on the entire pollination process. Overall, urbanization …

Comparison Of The 2022 Monkeypox (Mpox) Outbreak Using Mathematical Modeling And Time Series Clustering, Mark-Daniels Tamakloe

Electronic Theses and Dissertations

Monkeypox virus (MPXV) is the causative agent of monkeypox (mpox), a rare viral disease that affects humans [1]. It is primarily found in Africa and is transmitted to humans through contact with sick animals, particularly rodents and monkeys, or through human-to-human transmission [2]. From the beginning of May 2022, cases of mpox have been recorded from non-endemic nations, and the illness has continued to be reported in other endemic nations. Majority of confirmed cases have been recorded in Europe and North America. In this thesis, we compare the spread of the outbreak across the top ten countries using a combination …

An Early Pliocene Fish Assemblage From The Southern Appalachians: Ichthyofauna Of The Gray Fossil Site, Shay Maden

Electronic Theses and Dissertations

The Gray Fossil Site (GFS) preserves an early Pliocene sinkhole pond that accumulated a rich flora and vertebrate fauna. Fossils of fish are incredibly common at GFS, representing thousands of specimens recovered to date. Comparison with extant species reveals a depauperate freshwater fish fauna consisting of only two species: Lepomis sp. and Micropterus sp. The absence of fishes that are ubiquitous in modern streams suggests no perennial surface hydrologic connection between the Gray Fossil Site and the nearby Holston River. Limited opportunities for dispersal into the pond and deleterious conditions such as eutrophy and high competition may have resulted in …

The West Point Talent Based Branching Program As A Predictor Of Performance At The Army’S Field Artillery Basic Officer Leadership Course: Implications For Officer Retention, Ryan Oldroyd Scott

Electronic Theses and Dissertations

Junior officer attrition has increased over the last two decades. The early departure of army officers leaves a dearth of middle- and senior-level leadership, creating risk for future military readiness. West Point leaders theorized that new officers’ poor person–job fit within their specific career fields contributed to attrition. West Point implemented a talent-based system to place new officers into branches that should offer a stronger person–job fit, hoping it would reduce officer attrition. To begin the investigation on how this talent-based system affects attrition, this study examined graduates who joined the field artillery career field to ascertain if the various …

Exploring The Experiences Of Underrepresented Students Pursuing Health-Related Graduate Or Professional Programs, Alison Williams

Electronic Theses and Dissertations

For many years graduate and professional education programs for the health professions have sought to increase the diversity of their student body to include students from a wider variety of backgrounds. Increasing the diversity of healthcare providers is an essential component of addressing inequities in healthcare. However, despite initiatives to increase racial and ethnic diversity in the health professions, these professions remain largely White and female. Previous researchers have sought to identify the reasons that racial and ethnic minorities are underrepresented in healthcare, and the barriers to persistence and success. Little research exists explaining why men are underrepresented in the …

When Data Matter: Evaluating Data Prioritization For Department-Level Decision-Making In Higher Education, Cindy Cragg

Electronic Theses and Dissertations

The purpose of this program evaluation was to better understand the department-level leadership’s decision-making process and, within that process, when data are used to inform decisions related to the school’s mission to deliver an exceptional student experience. The evaluation took place at a school of professional and continuing education at a private institution in the Mountain West region. This evaluation’s central focus was to learn what the assumptions were that informed how the leadership prioritized data related to the student experience in their decision-making process. Secondarily, the evaluation explored what organizational conditions would be necessary for unused student-generated qualitative data …

Liberation And Inclusion Through The Voices Of Trans Youth: A Phenomenological Approach, Klaudia Neufeld

Electronic Theses and Dissertations

The primary aim of this phenomenological study is to elevate trans youth voice to understand the essence of their individual and shared lived experiences within school systems designed for them to be silenced, excluded, and erased. In alignment with Eve Tuck’s desire-based research, this study is designed to counter deficit narratives of trans youth. Participants include six racially and ethnically diverse trans youth, ages 13−17 in the U.S. state of Colorado. Analyses revealed four themes: a gender-identity transition journey; navigating geography; safety and the impact of school culture; creating belonging through a coalition of community and friendship; and youth lessons …

A Qualitative Inquiry Of Research Administrator Perceptions Of Job Satisfaction In A Central Research Administration Unit At The University Of Denver, Noelle L. Strom

Electronic Theses and Dissertations

The Sponsored Programs Administration (SPA) team provides critical research administration services for the research community at the University of Denver. As research funding continues to rise at the University of Denver, retention of research administrators is critically important. Job satisfaction is key to employee engagement and retention. Higher job satisfaction contributes to several positive outcomes for institutions, including lower turnover, higher productivity, lower costs, and employee loyalty. The need to retain experienced research administration professionals is highlighted by the fact that few formal educational routes exist that prepare employees for a career in research administration; rather, developing expertise takes a …

A Phenomenological Study Of Women Principals Who Resigned During The Pandemic, Jessica A. Urbaniak

Electronic Theses and Dissertations

It is well established that principal turnover is of grave concern in the U.S. (Goldring & Taie, 2018; Levin et al., 2020) and may have been exacerbated due to the pandemic (Steiner et al., 2022). This transcendental phenomenological study explored the experience of women principals at P-12 schools in the U.S. who voluntarily left their roles during the pandemic. Data was collected from five participants through two semi-structured interviews and a visual representation of their experience. The essence of this phenomenon was: the pandemic allowed for reflection which intensified the need for women principals to feel in harmony with their …

“Difference In/At The Center" A Transnational Approach For Mobilizing International Multilingual Graduate Writers' Writing Assets During Writing Instruction., Olalekan Adepoju

Electronic Theses and Dissertations

This research project presents an empirical exploration of how the writing assets possessed by international multilingual graduate writers impact the theory and pedagogical practices in writing studies, especially regarding the approaches to teaching writing. Extant scholarship in writing studies, especially on second language research/teaching, translingual writing practices, and asset-based writing pedagogy has engaged issues of difference in language, race, culture, as well as funds of knowledge, highlighting the impacts of these differences on the academic success of non-native English speakers in US schools and colleges. My dissertation builds on these trends and highlights the narratives, perceptions, and experiences of international …

Where Are All The Women?: Using Role Congruity Theory To Explore The Experiences Of Female Interscholastic Athletic Directors., Nicholas Swim

Electronic Theses and Dissertations

Leadership in sport organizations continues to be male dominated, even as multiple scholars have argued and proven the importance of women holding sport leadership positions (Burton & Leberman, 2017; Darvin & Lubke, 2021; Schull, 2017). The lack of women attaining these positions leads to fewer opportunities for role modeling and mentoring experiences for female athletes. As Burden et al. (2010) argue, interscholastic athletic directors are important as they usually represent the first interactions for young athletes with people in sport leadership positions. Researchers have investigated this phenomenon at the intercollegiate level (Bower & Hums, 2013; Darvin & Lubke, 2021; Taylor …

Clinical And Environmental Factors Affecting The Survival Outcomes Among Stage 1a Tn0m0 First Primary Non-Small Cell Lung Carcinoma Patients In The United States., Naiya Patel

Electronic Theses and Dissertations

Background: Lung cancer is the second leading cause of death in the United States (U.S.). The most prevalent histological type of lung cancer is Non-Small Cell Lung Cancer (NSCLC), which has an overall five years survival of 5% if left untreated. Therefore, early treatment of NSCLC is vital to improve overall survival (OS) outcomes. Several factors affect survival outcomes, which can be categorized as modifiable or non-modifiable. The difference in timely receipt of guideline-concordant treatment affects the survival outcomes of patients with stage 1A NSCLC. This dissertation explored factors that affect treatment and survival outcomes among stage 1A NSCLC patients …