Digital Commons Network^™

The Relationship Between Sport Club Participation And Academic Success In Undergraduate Students At The University Of Mississippi, Gabrielle Sokol

Electronic Theses and Dissertations

Degree attainment is a shared goal of college students, higher education institutions, and the larger society, as graduates have lower rates of unemployment, higher rates of civic engagement, pay higher taxes, and are able to better prepare future generations for academic success as compared to their counterparts (Museus et al., 2008). Additionally, institutions with higher retention rates have the chance to increase their reputation and may be presented as more prestigious to potential students and their families (Hagedorn, 2005).

Despite the clear incentives for all parties, every year many students, including those at the University of Mississippi, choose to leave …

Tanzanian Cyberscape: Exploring Language Preference Patterns Among Instagram Users, Carolyne Saria Ulomy

Electronic Theses and Dissertations

Virtual platforms such as Instagram are not only characterized by massive collaboration, sharing, and access to information but also by multilingual exchanges. For example, Tanzanian social media users choose to disseminate or publish information online using different languages present in their linguistic repertoires. This study explores multilingualism in social media (Instagram) within the Tanzanian context, as well as address the statuses of Swahili, English, Swanglish/Kiswanglish, Community Languages (CLs) and Foreign Languages (FLs) on social media. Specifically, the research investigated two overarching questions: What are the factors influencing language choices among Tanzanian Instagram users? and is there an association between content …

Application Of Direct Powder Extrusion 3d Printing Technology In Printing Multi-Layer Structure Tablets, Honghe Wang

Electronic Theses and Dissertations

Three-dimensional printing (3DP) is a widely used technique to manufacture drug delivery systems due to its precision, efficiency, and tailored prescription capability. Although fused deposition modeling (FDM) is the most commonly used technique in the pharmaceutical sciences, there are several limitations. Direct powder extrusion (DPE) 3D printing is a novel technique that was improved from traditional FDM. Material powder blends are fed into the cartridges of the 3D printer directly, without filament manufacturing, avoiding investigation and modification of filament property improvement. Chapter 1 introduces the fabrication of core-shell geometries for controlled-release tablets using direct powder extrusion 3D printing, demonstrating the …

Atomistic Simulation Of Pfas And Graphene: Interactions For Water Applications, Bashar Moufeed Awawdeh

Electronic Theses and Dissertations

The contamination of drinking water by per- and polyfluorinated alkyl substances (PFAS) is a global issue. PFAS have been widely utilized in a variety of applications, including water and stain-resistant coatings, fire suppression foams, cosmetics, paints, and adhesives. They have been detected in soils and rivers globally due to their widespread use and resistance to degradation. The strong C–F bonds of PFAS make them exceedingly stable and hard to remove. In order to remediate PFAS contamination in the environment, it is essential to develop selective adsorbent materials that can effectively capture a wide range of PFAS structures. On April 10, …

Mindfulness And Mathematics: The Relationship Between A Mindful Teacher And Mathematics Intervention, Ave Mayeux

Electronic Theses and Dissertations

Adolescents in American classrooms are currently required to fulfill multiple roles, making them particularly vulnerable to stress due to intense academic demands and social pressures. This stress can be particularly challenging for adolescents who struggle with stress, anxiety, depression, and/or self-regulation. Previous research indicates a positive correlation between mindfulness practices and reduced anxiety, improved social skills and interactions, enhanced academic performance, and better self-perception. This self-study explored the implementation of mindfulness exercises in a mathematics intervention classroom by adapting and creating appropriate resources, and facilitating mindfulness exercises suitable for adolescent students. Data in this self-inquiry study was generated through meticulous …

Acoustic Localization In Reverberant Environment, Xing Yang

Electronic Theses and Dissertations

The main goal of this dissertation is to develop algorithms to accurately locate and detect underwater oil leakages through sounds emitted by oil-induced bubbles recorded by passive hydrophones. These algorithms aim to create an early warning system to prevent or identify catastrophic oil spills from pipelines, wellheads, and seafloor seepage.

Graphene-Based Multilayer Polymer Nanocomposite Systems For Force Protection Applications, Mohammad Mansourian Tabaei

Electronic Theses and Dissertations

This work focuses on designing and optimizing a multilayer polymer system (MLPS) for force protection applications, consisting of a front layer, sublayer, and back layer. The front layer was developed using high-concentration graphene nanoplatelet (GNP)-enabled polymers, specifically (poly vinyl alcohol) PVA and (polyurea) PU, as alternatives to brittle ceramic layers. The sublayer was tailored using ABS-GNP composites as a replacement for the traditional Kevlar middle layer. In the development of the front layer, PVA-based nanocomposites were optimized with a specific dispersing agent to enhance mechanical and thermal properties. These nanocomposites demonstrated significant improvements in stiffness, storage modulus, and energy dissipation, …

"'This May Not Be War, But Rather Statesmanship': Sherman's March Through Griswoldville, Milledgeville, And Greater Savannah", Matthew Ryan Lempke

Electronic Theses and Dissertations

This dissertation argues that four communities in Confederate Georgia visited by Union soldiers during Sherman’s March to the Sea reorients our understanding about the state’s continued ability to resist the United States military, the level and variations of destruction, the rationales and motivations behind targeted actions, the multiplicity of experiences among diverse participants, willing and unwilling alike, and of the campaign’s broader effectiveness. The first two communities, Griswoldville and Milledgeville, were indispensable locations that set in motion a coalescence of military and political setbacks from which Confederate Georgia did not recover. As the march progressed and entered coastal communities, the …

Effects Of Off-Season Fall-Winter Farm Field Flooding On Nitrogen Gas Production, Andrew Rosson

Electronic Theses and Dissertations

Increased nitrogen (N) fertilizer use and cultivation of N-fixing crops have dramatically increased agricultural N inputs to the global N cycle. Excess N on agricultural lands is highly susceptible to loss through runoff or atmospheric emissions, potentially as a greenhouse gas (GHG). Nitrous oxide (N2O), a GHG with a warming potential ~300 times that of carbon dioxide (CO2), primarily enters the atmosphere through denitrification, which converts bioavailable nitrate (NO3-) to inert nitrogen gas (N2), with N2O as an intermediate. Wetlands are crucial for de-nitrification and N regulation due to their wet, anoxic soils, but have declined worldwide, including substantial losses …

Measurements Of Charge Parity Asymmetry In Λc+ → P+H+H−, Dinura Udayana Hetiiarachchi

Electronic Theses and Dissertations

This thesis presents direct Charge-Parity asymmetry measurements in singly Cabibbo suppressed...

An Evaluation Of Comprehensive Professional Development Program To Improve Teacher Quality And Student Engagement, Elois R. Nicholson-Booker

Electronic Theses and Dissertations

The purpose of this applied research study, using program evaluation, was to improve professional development for teachers to build their capacity in student engagement. This applied research study used three elements: professional development, professional learning communities, and observation-feedback, to improve teacher quality and to increase student engagement. The goal of the professional development element was to increase teacher capacity in student engagement by equipping teachers with research-based strategies to implement in individual classrooms. The goals of the professional learning communities (PLCs) was to support teachers in implementing research-based strategies to increase student engagement and to increase the level of collaboration …

Ftir Microspectroscopy For The Investigation Of Microplastic Pollution, Automotive Paint Layers, And Prehistoric Rock Paint With An Emphasis On Analytical Method Development, Kendall Wontor

Electronic Theses and Dissertations

The research detailed in this dissertation centers on the development of new analytical methods using chemical imaging microspectroscopy, primarily μ[micro]-FTIR, for applications in environmental, forensic, and archeological chemistry. The state-of-the-art instrument (LUMOS II) used in this research combines optical microscopy with IR spectroscopy, allowing sample visualization during FTIR imaging and micro-analysis.

Chapter 1 serves as an introduction and provides background detail on the instrumentation and technique. Chapter 2 describes the use of fluorescent microscopy to quantify microplastics (MPs) in oysters from the Mississippi Sound. High concentrations of putative MPs were found, with sites inside bays near population centers displaying higher …

The Higher Ed Forgotten: Experiences And Perceptions Of Face-To-Face Bipoc Administrators During The Covid-19 Pandemic, Dana Evans

Electronic Theses and Dissertations

This qualitative study explores the experiences of academic administrators during the COVID-19 pandemic, focusing on the impact of institutional racism on their professional lives. The study specifically investigates the challenges faced by administrators from diverse racial backgrounds in navigating institutional responses to the crisis. The research aims to develop a comprehensive plan that can be implemented at the local level in educational institutions and subsequently modeled and implemented nationally, a plan that can uphold sustainable structures, processes, and best practices for administrators during crises.

Breaking Old: Trends And Adverse Events Of Prescription Stimulant Use In Older Adults, Saumil Jadhav

Electronic Theses and Dissertations

This dissertation examined prescription stimulant medication (PSM) use among older adults in the United States from 2012-2020 by (1) assessing annual prevalence and describing clinical characteristics and treatment patterns among new PSM users, (2) evaluating the association between PSM initiation and risk of adverse events such as stroke, myocardial infarction, and all-cause mortality, and (3) analyzing trends in the concomitant use of PSMs and antidepressants. The study utilized 5% national sample of Medicare administrative claims from 2012-2020.

First, the study identified an increase in the annual prevalence of PSM use from 0.44% in 2012 to 0.63% in 2020 among older …

Addressing Teacher Stress Levels To Implement A Social Emotional Learning Program For Teachers, Kourtney Mcdowell-Bush

Electronic Theses and Dissertations

Teachers have endured work-related stressors daily to provide the best educational experience to students. This applied research study addressed teacher stress levels to implement a teacher centered social emotional learning (SEL) program. This study was collaborative and involved teachers, administrators, and district staff who worked together to develop, implement, and evaluate the action plan. There was a teacher team which included teachers from different grade levels who also completed the teacher stress survey. This teacher team met to provide an in-depth insight into teacher stressors. The teacher team with the assistance of the administrators worked to develop an SEL professional …

Formulation Development Of Cannabidiol Using Various Technologies As An Approach To Enhance Its Solubility And Oral Bioavailability, Iman Taha

Electronic Theses and Dissertations

Cannabidiol (CBD) is a crystalline compound extracted from a high-CBD variety of the Cannabis sativa plant. It has various pharmacological effects, including antipsychotic, anti-inflammatory, anti-seizure, and anxiolytic properties. However, developing CBD formulations presents several challenges due to its high lipophilicity (log P of 6.3), poor water solubility (0.1 μg/mL), and significant first-pass metabolism, which results in low oral bioavailability, estimated at just 6%. Furthermore, research has demonstrated that CBD is susceptible to degradation from exposure to light, temperature, and oxidation during formulation. Currently, Epidiolex is the only commercially available preparation containing CBD that has been approved by the US-FDA for …

Formulation And Characterization Of Quetiapine Fumarate Floating Bioadhesive Tablets, Ajay Reddy Kolipaka

Electronic Theses and Dissertations

Quetiapine fumarate (QF) is an antipsychotic drug, and it has a plasma half-life of 6 hours. The chemical structure of QF has nitrogen groups making it highly soluble in acidic pH and slightly soluble in alkaline pH. This study aimed to develop the QF gastroretentive tablets by TSMG technology comprising floating and mucoadhesive approach by using different viscosity grades of HPMC to improve absorption by prolonging its gastric residence time. The floating tablets were prepared using the Twin screw melt granulation (TSMG) technology, and the impact of polymer concentration and viscosity grades of HPMC on the floating ability and drug …

Language Variation: Arabic Dialects In Madinah, Saudi Arabia, Arwa Alsindy

Electronic Theses and Dissertations

Arabic sociolinguistics, namely Arabic dialectology, is a demanding area of study. Therefore, the current research was conducted to fulfill some of those needs. Qualitative methods were applied in order to answer the research questions: What are the salient linguistic features of the Hijazi Hadari dialect, Urban Bedouins Hijazi dialect, and the emerging Saudi Arabic White dialect in Madinah? When are these dialects used? What changes or accommodations are made to these dialects when communicating with the other social groups? To provide answers to those questions, observations and interviews were applied. By applying the SPEAKING model (Hymes, 1974), six participants (three …

Examining The Relationship Between Toddlers’ Sleep Patterns, Negative Parenting, And Executive Function, Morgan Elizabeth Harris

Electronic Theses and Dissertations

Negative parenting can often be described as having three domains (i.e., laxness, verbosity, and over-reactivity, Arnold et al., 1993; Rhoades & O’Leary, 2007), which may have relations to toddlers’ behaviors, like executive function (EF) and sleep. However, this field is understudied, especially in early childhood development. One possible explanation for the lack of research in this field is that it can be difficult to study executive function in toddlers due to variability in the stability of regulatory behaviors and emerging regulatory abilities at this age range. Although positive sleep patterns (e.g., quality and quantity) have been linked to executive function, …

Exploring African American Female Students' Choice Of Stem Major At Rust College, Shatara Hall

Electronic Theses and Dissertations

In comparison to the rest of the United States population, African American women are undeniably inadequately represented in the fields of science, technology, engineering, and mathematics (STEM). As one of the oldest historically black colleges in Mississippi, Rust College has the social responsibility to increase the presence and contributions of minorities in STEM. Since the enrollment of African American females is greater than that of African American males at Rust College, the college has the fortuity to assist in increasing the diversity in STEM for both race and gender. This DIP utilizes Intersectionality Theory as the conceptual foundation to explore …

Combined In Silico And Experimental Approaches Of Pharmacognosy To Resolve Complex Natural Product Issues, William Michael Neal

Electronic Theses and Dissertations

Since the identification of useful bioactive natural products can often involve tedious dereplication measures to decipher complex mixtures, much emphasis is placed on methods that can effectively characterize natural products. Several in silico methods, such as quantitative structure-activity relationships (QSARs), molecular docking, and quantum calculations, provide researchers with valuable tools to overcome the challenge of complex natural product mixtures. To exemplify the abilities of computational methodologies to further the field of pharmacognosy, this dissertation elaborates on several research projects involving computational approaches in pharmacognosy, including: (1) global assessment of pregnane X receptor (PXR) agonism via multiple QSAR models, (2) differentiation …

The Effects Of Multimodal Communication With Discourse In People With Chronic Aphasia, Elizabeth Grace Peeler

Electronic Theses and Dissertations

Purpose

Individuals with aphasia often experience communication breakdowns. One strategy that has been shown to be useful is switching communication modalities when a breakdown occurs. While many researchers have incorporated and shown positive effects of multimodality in aphasia treatment, few studies have utilized a discourse task to generalize the methods trained during the structured tasks to everyday life. The purpose of Multimodal Communication Treatment + Discourse and Group (MCT+DG) is to train various communication modalities in both structured and unstructured settings, which include a discourse and group therapy to help generalizing the skills in daily communication.

Method

Two participants with …

02.19.2024 Orsp Connect, Liz Williamson

ORED Newsletter

UM Library Training for Researchers, Kendra Sampey spotlight, School of Pharmacy's Research Day, MS Aerospace and Defense Symposium on March 29

Formulation And Characterization Of Clotrimazole Buccal Films Using Hot Melt Extrusion, Harish Kandhuri

Electronic Theses and Dissertations

Clotrimazole is a broad-spectrum antifungal /antimycotic, it is used topically in the treatment of oropharyngeal candidiasis. The oral route is the most preferred route of administration 60% of the conventional dosage forms are available as tablets and capsules. The main objective of the study was to develop and Formulate Clotrimazole oral film to get local effect for treating oropharyngeal candidiasis. Oral films are thin flexible strips which can be placed on the tongue, where it adheres to the surface of the tongue and dissolves releasing the drug into the oral cavity. Here, the films are formulated using hot melt extrusion …

Radiation And Scattering Of Electromagnetic Waves With The Use Of Metasurface Cloaks In Printed Antenna Technology, Shefali Pawar

Electronic Theses and Dissertations

It is a well-known fact that antennas form the very core of the modern wireless communication systems. As such, an escalating demand for increase in the wireless system capacity compels and necessitates accommodation of densely packed antennas in a very compact space. However, a practical design of such dense antenna systems may not only be cumbersome but could also lead to the deterioration of the overall system performance, considering the fact that such a system may suffer from destructive interference, owing to the cross-coupling between the antenna elements jammed together. In this regard, we endeavor to curb the detrimental effects …

Apartments, Michael Pontacoloni

Electronic Theses and Dissertations

The following poems engage with themes of placemaking in the twenty-first century. A critical introduction centers the accompanying poems within a developing tradition of poetry in the twenty-first century that challenge common conceptions of home, romantic relationships, and transience. Other topics approached in the poems include adolescence, the environment, sport, and friendship.

The Impact Of Perception Of L1 Stress Features On L2 Perceived Fluency, Tian Zhang

Electronic Theses and Dissertations

This study investigated the influence of stress on perceived fluency, a critical dimension of fluency study, alongside utterance and cognitive fluency. Perceived fluency is defined as the inferences listeners make about speakers’ cognitive fluency based on their perceptions of utterance fluency (Segalowitz, 2010). Previous research demonstrated that factors such as pause phenomena and speech rate significantly affected subjective fluency ratings (Bosker et al., 2012; Kahng, 2018). Stress was also identified as a contributing factor through qualitative analysis (Préfontaine and Kormos, 2016), yet had not been thoroughly examined using quantitative methods.

The cue-weighting theory of speech perception suggests that listeners from …

Juvenile Coping And General Strain Theory, Peyton Conner Stephenson

Electronic Theses and Dissertations

The purpose of this study is to quantitatively assess the impact of victimization on behavioral and emotional outcomes among a sample of adolescents detained within the juvenile justice system. Specifically, the study focuses on understanding the relationship between reports of victimization (e.g., being beaten up or threatened) and maladaptive coping mechanisms, such as involvement in fighting. To do so, Agnew’s (1992) General Strain Theory (GST) and the Pains of Imprisonment are adopted as frameworks for understanding the role of strain or stressors in prompting deviant behavior as a coping mechanism. This study uses secondary data from the Northwestern Juvenile Project …

Motivation And Attitudes Toward Learning English As A Foreign Language: A Case Study Of Urban And Rural University Freshmen In Saudi Arabia, Munif Almasarir

Electronic Theses and Dissertations

The Saudi educational system faces several challenges that contribute to low proficiency in English among Saudi students. Previous studies have focused on the EFL curriculum and pedagogical challenges, but there is a lack of research specifically examining other main psychosocial factors that contribute to the attainment of English proficiency. Motivational and attitudinal factors have been proven to have an impact on the proficiency level among EFL students. My study investigates the perceived influence of geographical location on students' attitudes and motivation toward English as a global language in Saudi Arabia. By utilizing an ethnographic approach focusing on both rural and …

Grace Satellite Spatial Resolution Downscaling Using Machine Learning: Methods And Applications, Abdel Rahman M. Awawdeh

Electronic Theses and Dissertations

The Gravity Recovery and Climate Experiment (GRACE) satellite mission has been instrumental in advancing our understanding of global water dynamics, providing unprecedented insights into terrestrial water storage (TWS). Despite its revolutionary contributions, the coarse spatial resolution of GRACE data (~300 km² grids) limits its utility for local-scale water resource management, particularly in regions requiring detailed hydrological analysis such as the Mississippi Delta. This dissertation addresses this limitation by developing and validating machine learning models to enhance the spatial resolution of GRACE data, thereby facilitating more precise and effective local water management strategies.

This research first establishes a comprehensive background in …