Digital Commons Network^™

A Care Ethical Defense Of Intergenerational Obligations, Owen Spalding

Electronic Theses and Dissertations

This paper argues that an ethic of care can justify an obligation or set of obligations to future generations. To do this, I analyze a comparable project by Thomas Randall and while ultimately agreeing with his basic conclusion, I show that he needlessly rejects arguments that would help to establish this obligation. Specifically, I defend against his critiques of Nel Noddings and Anca Gheaus. From here, I move on to show that an ethic of care centered on needs is more effective for making policy decisions than the sufficientarian model established by Randall.

Quitting: A Phenomenological Study On The Factors Contributing To Mississippi Teacher Exits During And After The Covid-19 Pandemic, Krystal R. Cormack

Electronic Theses and Dissertations

This transcendental phenomenological study focused on determining the factors contributing to teacher exits from Mississippi schools during and since the global COVID-19 pandemic. Developing a more robust understanding of the teacher labor market and teacher exits is vital to ensuring that students can access a high-quality education. Participants identified the COVID-19–related factors that influenced their decision to exit the classroom and factors unrelated to the COVID-19 pandemic. The participants felt the COVID-19 pandemic worsened their teaching experience and created additional work. One educator exited due to complications from long COVID disease. Three major findings unrelated to the COVID-19 pandemic emerged …

Black Hole Entropy In The Causal Set Approach, Ayush Dhital

Electronic Theses and Dissertations

Einstein’s field equations delineate the intricate dance between the geometry of spacetime and the energy-momentum. It is astonishing to realize how spacetime geometry is influenced by the presence of matter and energy and how this in turn affects the dynamics of matter in the spacetime background. Matter and energy are quantum mechanical in nature but the geometry of spacetime is a mathematical theory of a 4-dimensional pseudo-Riemannian manifold. Causal set theory is one of the approaches to reconcile quantum mechanics and gravity (an emergent property of spacetime geometry), and therefore it is an approach to quantum gravity. In this approach, …

Characterization Of Inter- And Intramolecular Non-Covalent Interactions Through Computational Quantum Chemistry, Carly Alyssa Rock

Electronic Theses and Dissertations

Computational quantum chemistry proves to be a highly effective means of exploring the nature and properties of a wide range of chemical systems that may be challenging to characterize experimentally. One area of particular interest is the investigation of non-covalent interactions, which play a crucial role in a wide variety of biological, chemical and physical processes. Obtaining accurate descriptions of systems dominated by weak inter- and intramolecular non-covalent interactions often requires sophisticated ab initio methods used in conjunction with robust basis sets. This approach, however, can become extremely computationally demanding as the size of the system of interest increases. Within …

A Multi-Scale Analysis Of The Hartselle Sandstone To Characterize Reservoir Properties And Inform Carbon Sequestration Feasibility, Xiaotian Wang

Electronic Theses and Dissertations

This dissertation takes multiple approaches to investigate lithology, depositional environments, diagenesis, and reservoir quality for petroleum and carbon sequestration in the Mississippian Hartselle Sandstone. The Hartselle Sandstone has been considered economically important for its viscous bitumen and natural gas reserves, with only minor attention given to potential oil reserves due to its low permeability. I proposed to reinvestigate the possibility of oil production from the Hartselle Sandstone, including a focus on the required elements of a conventional petroleum system. A detailed petrographic analysis recognized three lithofacies associations: beach lithofacies association, protected transgressive wave-dominated coast association, and unprotected transgressive tidal flat …

Predicting Microstructure Evolution In Alloys Using Deep Learning, Benjamin Mullins Rhoads

Electronic Theses and Dissertations

Modeling the microstructure evolution and linking them to materials properties is critical in establishing processing-microstructure-property linkage in materials. In this project, the evolution of microstructure of Fe-C alloys is modeled using phase field simulations to understand the behavior of these alloys under various cooling temperatures and initial carbon concentrations. However, these simulations require significant computational resources. Therefore, in this thesis, a convolutional neural network (CNN) and gated recurrent unit (GRU) are coupled with phase field simulations to predict the solidification of Fe-C alloys. In addition to the data-driven approach, the solid-liquid interfacial energy is incorporated during the training process, giving …

Earthscibert: Pre-Trained Language Model For Information Retrieval In Earth Science, Rishabh Shrestha

Electronic Theses and Dissertations

Large Language Models (LLMs), such as Generative Pre-trained Transformers (GPT) and Bidirectional Encoder Representations from Transformers (BERT), have significantly advanced Natural Language Processing (NLP), achieving state-of-the-art results in various tasks. Notably used in systems like Google Search, these models can be domain-tuned through domain-specific pre-training. In Earth Science, where massive data is generated and made publicly available by institutions such as the National Aeronautics and Space Administration (NASA), understanding the usage of such datasets in scientific literature is critical to assessing their scientific impact.

This thesis develops and introduces EarthSciBERT, a domain-specific BERT developed for Earth Science by pre-training BERT …

It’S Just A Way Of Life: A Symbolic-Interactionist Approach To Inequalities In The Contemporary American South, Angela Rankin

Electronic Theses and Dissertations

The contemporary American South is characterized by significant inequalities that are deeply- embedded into the social fabric of the region. These inequalities are dictated by cultural and social dynamics that have shaped the Southern region over time; however, they are reinforced daily through the individual agency of Southern social actors. This thesis aims to analyze Southern inequalities through a symbolic-interactionist focused lens and data collected from semi-structured, qualitative interviews conducted with over 70 White Southerners in two places within the American South- Oxford, MS, and Memphis, TN. In this thesis, I argue that White Southern actors actively use their individual …

Exploring Clinical Judgment In An Accelerated Undergraduate Nursing Curriculum, Marlie Lawrence Farrar

Electronic Theses and Dissertations

Nurses play a pivotal role in the healthcare world. They play a role in many settings, caring for patients with chronic issues to patients in life threatening situations. These settings call for nurses to be able to analyze patient situations and correctly intervene. This skill is clinical judgment. However, Kavanagh and Swzeda (2018) have shown that new graduate nurses do not demonstrate this skill, potentially causing patient harm. Findings such as this one have led to a reformation of the National Council Licensure Examination for Registered Nurses (NCLEX-RN). The revamped exam called the Next Generation NCLEX (NGN) will focus on …

A Comparative Study Of Conventionally Manufactured And 3d Printed Tablets, Rujuta Vaibhav Manjrekar

Electronic Theses and Dissertations

This study aimed to develop tablets of carbamazepine (CBZ) using 3D printing and direct compression and compare their release patterns. KlucelTM ELF grade was used as the polymeric carrier. The hot melt extrusion (HME) was used to prepare the feedstock for the 3D printing and the direct compression process. The processing parameters and formulation were selected and the physical mixture consisted of CBZ:Kulcel (30%: 70% w/w) was extruded using a twin screw hot melt extruder (HME) (11mm Process 11, Thermo Fisher Scientific). The temperature used for extrusion was 110oC at a screw speed of 50 RPM. The obtained HME filaments …

Negotiating Intersectional Identities In The Music Culture Of The Deeper Christian Life Ministries In Nigeria, If-Not-God Moses

Electronic Theses and Dissertations

Christianity is the largest religion in the world with a population of over two billion. More than ever before, the rapid growth of this religion is getting more diverse due to a great variety of doctrines and practices that it accommodates. From the inception of Christianity, music has been prominent and a powerful bedrock of its religious worship. This thesis, underpinned by the paradigm of sound as a social structure as espoused by Steven Feld, examines the intersectional identities in the music culture of the Deeper Christian Life Ministries (DCLM) in Nigeria. This research aims to fathom the musical functions …

Tidally-Induced Nonlinear Resonances In Extreme Mass Ratio Inspirals With An Analogue Model, David Bronicki

Electronic Theses and Dissertations

The future space-based gravitational wave observatory LISA is expected to capture signals from extreme mass ratio inspirals (EMRIs), a new class of inspiral systems which current detectors are not sensitive to. Detection and characterization of EMRI systems requires long and accurate waveform models, which may require accounting for effects like those seen in the presence of an external tidal field. In particular, such a perturbation may break integrability of the system and cause significant dephasing. In this thesis, we use a Newtonian analogue of a Kerr black hole to study the effect of an external tidal field when the system …

Different Phonographic L1 Effects In Processing L2 Chinese Characters: The Role Of Phonology And Orthography In Lexical Entry, Shuang Cheng

Electronic Theses and Dissertations

Orthography-phonology mapping in world languages exhibits variations. Extensive research has investigated whether orthographic-phonological consistency impacts the cognitive processing of written words. A major body of work has focused on the recognition of phonographic first language (L1) written words. Results show that the more transparent the orthography, the more reliance on phonological processing, and vice versa (Katz & Frost, 1992). Another body of work has paid attention to the cognitive process of identifying Chinese characters because of their logographic nature. These studies have mostly focused on recognizing L1 Chinese words (including both simplified and traditional written words) (Perfetti & Zhang, 1995; …

Unsung Heroes: The Jones County Drug Court, Elise Joelle Denoulet

Electronic Theses and Dissertations

In Ellisville, Mississippi, some heroes do not wear capes. The Jones County Drug Court, located in rural Mississippi, fights drug and alcohol addiction daily. This drug court program, led by the tough but compassionate Consuelo Walley, supervises about 70 to 90 participants in their recovery journey. In recent years, this program has grown to be known as one of the most efficient in its region, and I made it my mission to uncover why that is. It turns out staff members are themselves recovering addicts, who utilize their own experience as a way to connect and relate to their participants. …

Strengthening Tier One Instruction In The Mathematics Classroom By Increasing Teacher Mathematics Content Knowledge And Pedagogy, Cynthia Becton French

Electronic Theses and Dissertations

The purpose of this applied research study was to strengthen Tier I instruction within seventh and eighth-grade mathematics classrooms. This applied research study uses three elements; professional learning communities, consistent content-specific professional development, and increased student achievement to strengthen Tier I instruction in middle school mathematics and measure student academic growth. Interviews, surveys, statewide assessments, and benchmark scores were used in this study as measures for program success. Using these elements to support Tier I instruction can lead to increased student achievement in mathematics at the middle school level.

Milk And Water Kefir: Microbial Diversity And Sensory Properties, Xia Li

Electronic Theses and Dissertations

Kefir is a fermented beverage that has become increasingly popular because of its proposed probiotic functions. It can be classified into two types: milk kefir and water kefir depending on the medium and inoculated starter culture. This dissertation summarizes work exploring the similarities and differences between milk and water kefir with respect to sensory properties and microbial composition. For the kefir sensory test, six milk and six water kefirs were evaluated on the sensory attributes (color, aroma, taste, and mouthfeel). Milk kefirs were assessed as sour and cheesy, followed by a creamy and thick mouthfeel. In contrast, water kefirs were …

An Assessment Plan To Analyze Nudges And Their Effectiveness In A Learning Management System At Educational Institutions, Nishanth J. Rodrigues

Electronic Theses and Dissertations

Procrastination is a significant problem in academia with some estimates suggesting that this occurs in as high as 70-90% of college students (Abdi Zarrin & Gracia, 2020) that manifests in numerous harmful ways including postponement of weekly reading assignments, delay in writing term papers, and inadequate preparation and beginning too late when studying for exams. The effects of procrastination vary from the immediate, such as a failed grade on an assignment, to the long-term, including delayed graduation or even failure to graduate, all of which have the “knock-on” effect of harming the students’ self-esteem and future success following their studies. …

Design And Application Of Single And Multi-Gate Transistor-Based Analog Chaotic Maps, Maisha Sadia

Electronic Theses and Dissertations

Rapid advancement in technology has led to an increase in security threats, such as side-channel attacks and reverse engineering, which can potentially leak sensitive data or code to malicious parties. To address these challenges, researchers harness the inherent complexity of chaos-based computing. Leveraging chaos offers several advantages, including logic obfuscation, mitigation of power analysis attacks, and encryption of images and data.

The motivation has been to design hardware-efficient circuits that meet modern systems’ power, area, and performance requirements and provide enhanced security. We have introduced our novel one-dimensional discrete chaotic map circuits, designed using a 45nm CMOS process, although the …

I Say See You Later, Lillian Slaughter

Electronic Theses and Dissertations

This MFA thesis continues the work that was completed in the master’s thesis “This Is Home: Stories of H2-A Placemaking in the U.S. and Mexico,” by creating a short film about the farm in Kentucky. Through research on ethics and positionality, I explore the ideas that shaped this filmmaking process. The film highlights the experience of working on a mid-sized organic farm that utilizes the federal H2-A visa program for seasonal farmworkers through the lens of a co-worker. This supplemental written thesis includes research, personal accounts of the process of filmmaking, and a reflection of influential films.

On Security And Privacy In Machine Learning, Thomas Cilloni

Electronic Theses and Dissertations

In recent years the use of social media platforms, surveillance cameras, and vision-enabled devices and services has increased exponentially. While the mere use of a device or service is not a privacy issue, Machine Learning use has also drastically increased, and it exposes a number of privacy and security threats, especially towards online users. Privacy legislation around the world prohibits to use of data unfairly, but the conversion of laws to technical applications is often subject to interpretation. Such ambiguity opens a gap for data owners to potentially misuse data, violating end users’ privacy.

The overall objective of this doctoral …

The Double Descent Behavior In A Two Layer Neural Network For Binary Classification, Chathurika Srimali Abeykoon

Electronic Theses and Dissertations

Machine learning and artificial intelligence have changed the world significantly in recent years. Its breakthrough innovations take machine learning to a whole new level where machines can learn to recognize tasks, inspired by the human brain's neural networks. The generally accepted belief about training these machines or models is that \larger models and more data are always better". In classical statistics, the test error is a \U-shaped" curve where the bigger and more complex models have higher test errors which is not favorable. But recent studies observed a surprising concept about test error called the double descent phenomenon where the …

Supernatural Law? A Refutation Of Three Recent Natural-Law Arguments Against Catholic Integralism, Jackson Dellinger

Electronic Theses and Dissertations

In the United States, there is a longstanding debate over the proper relationship between religious and civil institutions, or “church and state.” One radical voice in the debate is that of Catholic integralism, a school within Catholic social teaching which argues that Catholic governments should submit to the religious authority of the Church, and that Catholics should aspire towards a Catholic society with this relationship between Church and State for all nations. Recently, interlocutors have attempted to show that integralism is inconsistent with a core element of the Catholic teaching to which they appeal—that is, natural law. In this paper, …

Investigating The Use Of Politeness Strategies In Expressing Disagreements Among Saudi Efl Teachers On Twitter, Rowida Ali Al Ghamdi

Electronic Theses and Dissertations

This study investigates the politeness strategies employed by Saudi EFL teachers when expressing their disagreements on Twitter. It examines the factors affecting Saudi EFL teachers' choice of politeness and disagreement strategies. It compares Saudi EFL teachers' disagreement expressions with those of American ESL teachers on Twitter. Four instruments were utilized to collect the data: retrieving the corpus of tweets, observing the thread of tweets (for Saudi EFL and American ESL teachers), using an open-ended questionnaire, and follow-up interviews (for Saudi EFL teachers). This study finds that the on-record strategy was the most frequently used among Saudi EFL teachers, as found …

Neverender, David James Gambino

Electronic Theses and Dissertations

This is a work of fiction exploring the Global War on Terror from the perspective of US aircrew servicemembers.

Development And Validation Of Different Analytical Techniques For The Quantification Of Cannabinoids And Cannflavins In Cannabis And Cannabis-Based Products, Mostafa Elhendawy

Electronic Theses and Dissertations

The main objective of this study is to modify, develop, and validate techniques for detecting and quantifying the levels of major and minor cannabinoids, along with their corresponding acids, in Cannabis sativa plants and certain marketed products. To achieve this goal, the research employs Gas Chromatography (GC), High-Performance Liquid Chromatography (HPLC), and a novel spectroscopic method known as Absorbance-Transmittance Excitation Emission Matrix Spectroscopy (A-TEEM). Another study validated and applied the HPLC technique to analyze the unique class of flavonoids (Cannflavins) found in various parts of the cannabis plant, including leaves, buds, and pollen.

The A-TEEM method was developed and validated …

Three Essays On The Democratic Party, Jonah King

Electronic Theses and Dissertations

In the United States today the two parties struggle to find common ground on anything, and strong partisan attachments lead many members of the public to follow the lead of their preferred party on nearly every political decision. However, the sorting of the public does not mean that the parties are monoliths. The Democratic Party in particular is composed of a wide range of groups which often do not easily come to consensus when there are decisions to be made. The occasional lack of consensus within the Democratic Party leads to questions about how the party as a whole is …

The Sailor Or The Fish // The Seafoam Or The Salt, Marina Rachelle Leigh

Electronic Theses and Dissertations

A collection of poems.

Evaluating The Relationship Between Vegetation Types And Downscaled Surface Soil Moisture Data, Anupiya Vidarshana Ellepola

Electronic Theses and Dissertations

Remote sensing systems such as multispectral and radar imaging can provide detailed information about soil moisture levels, vegetation cover, and topography. These data can be used to identify areas of high soil moisture, monitor changes in soil moisture over time, and assess the impact of human activities on watersheds. A commonly used system in orbit for monitoring soil moisture is the Soil Moisture Active Passive Mission (SMAP). For SMAP and all spaceborne systems, one of the major limitations for users to implement satellite-based data is the coarse resolution of the pixels (~9 km). Downscaling approaches are introduced by many researchers …

Teachers' Experiences Implementing The 2018 Mississippi College And Career Readiness Standards For Science, Lydia Lytal

Electronic Theses and Dissertations

Teachers have had to use standards to teach with since the 1980’s. The CCRS has made a significant shift in how standards are written and the expectations of students in learning them. With the three-dimensional design, teachers are required to change their pedagogy in order to implement the standards with fidelity. That requires training, support, and resources for the teachers. The purpose of this study was to provide insight in the experiences of high school teachers in Mississippi as they implemented the standards. Additionally, the researcher revealed emotions related to implementation and differences related to teachers in a tested subject …

Subject Ellipsis In Japanese And Clues For Non-Native Learners, Akiko Murakami

Electronic Theses and Dissertations

This study investigated whether learners of Japanese are less accurate in selecting appropriate reference of omitted subjects than native speakers and in which environment the learners have the most difficulties. Also, it looked into whether there is a correlation between the accuracy of the selecting and knowledge of the clue grammar. The survey had a subject selecting test and a knowledge test. The subject selecting test included two different environments: Giving/Receiving verbs and Honorific verbs. The knowledge test also covered these two environments. Giving/Receiving verbs have three types: ageru (give), kureru (give), and morau (receive); and Honorific verbs has two …