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Engineering Functionalized Nanomaterials For Targeting And Ablating Biofilms On Surfaces, Dhanush Lakmal Yapa Amarasekara Dec 2024

Engineering Functionalized Nanomaterials For Targeting And Ablating Biofilms On Surfaces, Dhanush Lakmal Yapa Amarasekara

Theses and Dissertations

Biofilms on both the surface and interior of medical devices pose major challenges, including hindering device performance and serving as infection sources. These biofilms form a protective layer around bacteria, shielding them from the body’s immune system and antibiotics. This makes infections difficult to treat, as the bacteria within the biofilm are resistant to both antibiotics and immune defenses. Additionally, biofilms can induce inflammation and irritation in nearby tissues, leading to further health complications. Antibiotic resistance raises concerns about the emergence of multi-drug resistant (MDR) pathogens. MDR infections are difficult to treat, leading to prolonged hospital stays and the need …

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Effects Of A Snap-Ed Social Marketing Campaign On Behavior Change, Andrew Beall Cole Dec 2024

Effects Of A Snap-Ed Social Marketing Campaign On Behavior Change, Andrew Beall Cole

Theses and Dissertations

Introduction: This research studied the use of a social marketing campaign to address chronic diseases in the U.S., such as obesity, diabetes, hypertension and other cardiovascular diseases by assessing audience self-reported actions and evaluating message framing effects on participant intentions to change nutrition behavior and daily physical activity. Approach: Evaluate a social marketing campaign for effects on SNAP-Ed eligible clients and research message framing effects on audience’s intention to change health behaviors. Discussion: The HappyHealthy social marketing campaign launched in 2018 by Mississippi State University Extension. Outcome evaluation data (collected 2023) reported multiple correlations between core messages recalled and increased …

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It’S About Time: Early Bronze Age Chronology Further Refined With 14c Testing At Tell El-Hesi, Erika Marie Niemann Dec 2024

It’S About Time: Early Bronze Age Chronology Further Refined With 14c Testing At Tell El-Hesi, Erika Marie Niemann

Theses and Dissertations

In 2019, the author re-presented two 14C dates for Tell el-Hesi in the northern Negev desert of modern-day Israel that were originally published in 2006 by Anderson. Here, 10 additional samples out of the total recovered corpus by The Joint Archaeological Expedition to Tell el-Hesi in 1979 from the EB III occupation in Field VI, were 14C tested to refine further the EB III absolute dates for the site. The samples come from two main contexts along the EB III city wall, representing both the interior occupational debris and an ash dump feature found along the exterior of the city …

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The Digital Divide Among Urban University Students In The Post-Pandemic Era, J. B. Oleet Dec 2024

The Digital Divide Among Urban University Students In The Post-Pandemic Era, J. B. Oleet

Theses and Dissertations

This survey study, N = 44 university students, from an urban campus, measured post-pandemic digital divide perceptions, focusing on motivational, physical, skills, and usage access to ICTs through the lens of van Dijk’s resources and appropriation theory. Statistical tests, including one-sample t-tests, correlation analyses, one-way and repeated measure ANOVAs, and independent sample t-tests, highlighted both the perceptions and relationships among different dimensions of digital divides. The findings showed that participants perceive their post-pandemic digital divide perceptions positively. Intrinsic Motivational Access (IMA) mean scores were particularly high, suggesting a strong internal drive among students to engage with ICTs, significantly surpassing extrinsic …

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Predicting Vegetation Override Force For Off-Road Autonomy, Marc Nicholas Moore Dec 2024

Predicting Vegetation Override Force For Off-Road Autonomy, Marc Nicholas Moore

Theses and Dissertations

Vegetation override is an important aspect of off-road ground vehicle mobility. An autonomous ground vehicle’s (AGV) perception system must distinguish between vegetation that can be easily driven through from vegetation that cannot. Predicting the resistance of vegetation could allow path- planning systems to make this distinction. However, despite its importance, direct measurement of vegetation resistance is rare, as most studies use indirect proprioceptive data, such as inertial measurements, as proxies for override force. Notably, there is a lack of empirical data on the override resistance of small stems (< 2.5 cm) and clusters of vegetation on medium-sized (approx. 1000kg) vehicles. To address this gap, a comprehensive dataset of override measurements was collected for clumps of small vegetation relevant to intermediate-sized AGVs navigating off-road terrain. This dataset includes over 70 recordings using the Robot Operating System (ROS) during controlled driving experiments through small trees, grasses, and bushes. The collected data includes light detection and ranging (LiDAR) scans, imagery, force measurements from integrated load cells, and simultaneous localization and mapping (SLAM) information. A key contribution of this research is the development and calibration of a custom push bar system equipped with load cells to directly measure override forces. These measurements are compared to empirical models previously developed by the U.S. Army Corps of Engineers for larger single-stem vegetation. A preprocessing pipeline was developed to automatically extract and label LiDAR and camera data according to these force measurements. This self-labeled dataset was then used to train machine learning models that predict override resistance of vegetation from LiDAR and camera scans alone. This research characterizes the relationship between override forces and the observable features of vegetation as measured by LiDAR and camera sensors. Deep learning models were developed and trained to predict override forces based on different input modalities and features derived from point clouds and images. The performance of these models was compared across various input features to investigate how deep learning can create a generalizable and accurate force prediction system.

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Biothermodynamics Of Metal And Dna Coordination To The Pneumococcal Transcription Factors Adcr, Scza, And Copr, Alexander James Cutright Dec 2024

Biothermodynamics Of Metal And Dna Coordination To The Pneumococcal Transcription Factors Adcr, Scza, And Copr, Alexander James Cutright

Theses and Dissertations

ransition metals are micronutrients that play critical roles in all forms of life, acting as stabilizing ions, catalytic centers, and as signaling ions. Due to their importance, classes of biomolecules have been designed with the sole purpose of regulating their intracellular concentrations. One group of which are transcription factors, which regulate intracellular metal concentration by activating or repressing transcription, dependent on metal availability. The activation of transcription factors by metal availability can be attested to conformational changes that are governed by both dynamics and thermodynamics. Due to the influential nature of transcription factors, their activity and activation mode have become …

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Analysis Of Positive Solutions For Classes Of Nonlinear Boundary Value Problems, Bandar Alreshidi Dec 2024

Analysis Of Positive Solutions For Classes Of Nonlinear Boundary Value Problems, Bandar Alreshidi

Theses and Dissertations

In this dissertation, we study the existence and uniqueness of positive solutions for classes of nonlinear boundary value problems. In the first study, we the ��-superlinear case, we prove the existence of a large positive solution when a parameter is small and if, in addition, the reaction term satisfies a concavity-like condition at the origin, the existence of two positive solutions for a certain range of the parameter. In the ��-sublinear case, we establish the existence of a large positive solution when a parameter is large. We also investigate the number of positive solutions for the general ��-Laplacian with nonlinear …

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A Correlation Study Between Soil Selenium Levels And Diabetes Prevalence Across U.S. Regions: An Archival Data Analysis (2012-2018), Baoshan Wu Dec 2024

A Correlation Study Between Soil Selenium Levels And Diabetes Prevalence Across U.S. Regions: An Archival Data Analysis (2012-2018), Baoshan Wu

Theses and Dissertations

This study investigates the correlation between soil selenium levels and Type 2 diabetes (T2D) prevalence across U.S. regions between 2012 to 2018. Selenium, an essential trace element, plays an important role in antioxidant defense and metabolism. While appropriate selenium intake may protect against diabetes by improving insulin sensitivity and reducing oxidative stress, excessive intake can have adverse effects. This research analyzed the most recent data, from the Centers for Disease Control and Prevention (CDC) and the U.S. Geological Survey (USGS), for over 3,000 counties in the U.S. A correlation analysis model was used to determine the relationship between soil selenium …

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Data Privacy Protection For Zero-Permission Sensors In Iot Systems, Xinyi Liu Dec 2024

Data Privacy Protection For Zero-Permission Sensors In Iot Systems, Xinyi Liu

Theses

The Internet of Things (IoT) has revolutionized various domains through real-time decision-making and automation, with sensors serving as foundational components. Zero-permission sensors, such as accelerometers and gyroscopes, are widely used in most IoT systems, enabling unrestricted data access without permission. Despite being traditionally perceived as low-sensitivity, recent studies have shown that these sensors can be exploited to infer sensitive personal information, raising serious privacy concerns. Local Differential Privacy (LDP) is a rigorous technique for numerical data privacy protection even when the data collector, such as an IoT service provider, is untrusted. LDP ensures privacy by adding noise to sensor readings …

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The San Francisco Cultural Districts Program: A Potential Answer To Fighting Gentrification And Uplifting Culture And Neighborhoods, Boston Rizal Palacios Dec 2024

The San Francisco Cultural Districts Program: A Potential Answer To Fighting Gentrification And Uplifting Culture And Neighborhoods, Boston Rizal Palacios

Undergraduate Honors Theses

As San Francisco neighborhoods are rapidly changing due to gentrification and displacing longtime residents and small businesses, the San Francisco Cultural Districts Program was established in 2018 with the goal to disrupt gentrification by prioritizing the voices of people within these disinvested neighborhoods. Through analyzing government documents, news articles, and conducting personal interviews, I am conducting a hypothesis-generating, qualitative case study on one of the cultural districts, SOMA Pilipinas. This is to determine if the San Francisco Cultural Districts Program is an effective model in giving impacted communities more of a role in decisions about how to best protect their …

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Effects Of Mastery Criterion On Response Maintenance, Sydney Mcfall Dec 2024

Effects Of Mastery Criterion On Response Maintenance, Sydney Mcfall

Electronic Theses & Dissertations

Autism Spectrum Disorder (ASD) is characterized as having at least two deficits in areas of functioning such as impaired language development, impaired social development, and the presence of excessive or stereotyped repetitive behaviors or interests (Granpeesheh et. al., 2009). Early and intensive behavioral intervention (EIBI) is an evidence-based practice for remediating deficits in individuals with ASD (Love et. al., 2008). One important component of intensive intervention is defining the mastery criterion, or the point at which a skill has been learned to a sufficient level that allows for maintenance. Mastery criterion is necessary to progress intervention targets on a rapid …

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Eco-Friendly Polyester Vitrimer: Enhanced Stretchability, Self-Healing, And Reprocessability Through Dynamic Covalent Crosslinks Via Melt-Polycondensation, Saiprasanna Neerukonda Dec 2024

Eco-Friendly Polyester Vitrimer: Enhanced Stretchability, Self-Healing, And Reprocessability Through Dynamic Covalent Crosslinks Via Melt-Polycondensation, Saiprasanna Neerukonda

Electronic Theses & Dissertations

Dynamic covalent polymer networks offer new possibilities for designing sustainable polyester vitrimers owing to their excellent reprocessability and malleability; however, maintaining the high performance of the adaptable network with amazing healing properties remains a challenge. Therefore, the proposed approach considers the one-pot synthetic strategy to fabricate highly stretchable polyester vitrimer networks via condensation polymerization of different aliphatic diacids which are glutaric acid, pimelic acid, azelaic acid with 1,4-butanediol in the presence of glycerol and dithiodicarboxylic acids as the curing agent and dynamic covalent crosslinkers. The synthesized polyester network with simultaneous disulfide metathesis and carboxylate transesterification exhibited vitrimeric behavior which can …

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Bio-Based Polyurethane Films: Effect Of Hydroxyl Numbers On The Properties Of The Polyurethane Films, Fenilkumar Patel Dec 2024

Bio-Based Polyurethane Films: Effect Of Hydroxyl Numbers On The Properties Of The Polyurethane Films, Fenilkumar Patel

Electronic Theses & Dissertations

In today's world, there's a growing shift towards adopting eco-friendly and sustainable materials in response to pressing environmental concerns. Among the key polymeric materials utilized in various industries, polyurethanes stand out, being widely employed in the manufacture of everyday essentials. However, the conventional method of producing polyurethanes relies heavily on hazardous and fossil fuel-derived substances, presenting significant environmental challenges. To address this issue, there's a critical need to substitute petroleum-based materials with more sustainable alternatives. In our research, we focused on utilizing limonene, a compound found in citrus fruit peels such as lemon and orange, and geraniol, extracted from rose …

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Flourine Free, Bio-Based Antismudge Polyurethane Coating With Enhanced Flame-Retardancy, Rutu Patel Dec 2024

Flourine Free, Bio-Based Antismudge Polyurethane Coating With Enhanced Flame-Retardancy, Rutu Patel

Electronic Theses & Dissertations

Antismudge coating materials are generally synthesized using petroleum-based polyols and fluorinated compounds, which are harmful to the environment and human health. Thus, researchers are more inclined to develop polyurethane (PU) coating from bio-based polyols and fluorine-free materials. Here, silicone-containing diol was used with soybean oil polyol (SOP) to produce PU coating. The chemical inertness to acid, base, and salt, along with the non-stick properties of silicone, would help achieve the desired properties of the anti-smudge PU coating. Metal (stainless steel) and wood coupons (oak wood) were coated with this synthesized coating material and tested to study chemical resistance along with …

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Interleaving Practice: A Better Approach To Band Rehearsal Structure, Matthew Reimer Dec 2024

Interleaving Practice: A Better Approach To Band Rehearsal Structure, Matthew Reimer

Electronic Theses & Dissertations

The purpose of this thesis is to identify the merits of a band rehearsal structure that incorporates elements of an interleaving schedule, whereby multiple items of a similar nature are rehearsed in a mixed fashion rather than in a blocked format where one task is completed before moving on to the next. The project looks at the current state of research related to interleaving in the study of the arts, potential obstacles, motivational strategies to increase student receptiveness, and specific examples of how to implement the research in an intermediate band rehearsal. Included are resources and strategies for pitch and …

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Effect Of Nitrogen And Phosphorus In Rigid Polyurethane Foams Synthesized From Bio Derived Polyol, Jonsi Patel Dec 2024

Effect Of Nitrogen And Phosphorus In Rigid Polyurethane Foams Synthesized From Bio Derived Polyol, Jonsi Patel

Electronic Theses & Dissertations

Rigid polyurethane foams (PUFs) are widely used as thermal insulators due to their excellent mechanical properties and low thermal conductivity. However, their dependence on petrochemical-derived polyols and inherent flammability poses environmental and safety challenges. This study investigates the synthesis of bio-based rigid PUFs using canola oil polyol (COP), a sustainable alternative to petrochemical polyols. The research explores the incorporation of nitrogen and phosphorus-based reactive flame retardants, including diethyl phosphate (DEP), melamine (MA), and a novel compound (TDHTPP) synthesized from cyanuric chloride, diethyl phosphate, and vanillin, to enhance both flame retardancy and mechanical properties. Preliminary results demonstrate that PUFs containing 15gm …

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Sustainability Of Food Prescription Programs In Rural Mississippi, Eve Davis Dec 2024

Sustainability Of Food Prescription Programs In Rural Mississippi, Eve Davis

Honors Theses

Food prescription programs are an innovative strategy to address food insecurity and to promote health as a preventative measure, particularly in rural and underserved areas. Mississippi has high rates of chronic diseases relating to nutrition, poverty, and limited access to fresh fruits and vegetables. Throughout this research, I have analyzed program funding and sustainability mechanisms such as community investment, nutrition education, and awareness. The preliminary research has identified the need for collaboration between healthcare providers, local farmers, nonprofit organizations, and government officials. I interviewed various individuals that could become potential stakeholders for food prescription programs, such as individuals from nonprofit …

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Fictional And Historical Narratives Of African American Soldiers Of Wwii, Abigail Rae Stewart Dec 2024

Fictional And Historical Narratives Of African American Soldiers Of Wwii, Abigail Rae Stewart

Honors Theses

This thesis examines the experiences of African American soldiers during World War II through the dual lenses of oral histories and fictionalized accounts, arguing that both are essential to fully understanding their multifaceted journeys at home and abroad. Oral histories provide direct, personal narratives from veterans themselves, capturing their voices, emotions, and reflections on the discrimination, camaraderie, and resilience that defined their wartime and postwar lives. These firsthand accounts offer invaluable insights into the structural realities of systemic racism within the military and society, as well as the personal sacrifices these soldiers made in the name of a country that …

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A Kid's Guide To Infectious Disease, Abby Carroll Dec 2024

A Kid's Guide To Infectious Disease, Abby Carroll

Honors Theses

A Kid’s Guide to Infectious Disease is an educational illustrated book intended for young pediatric patients, ages three to five. This project was inspired by my personal interests, involvement at the University of Mississippi, and experience as a medical assistant. Over the past couple of years, I have had the opportunity to work as a medical assistant, interacting with many pediatric patients and their families at HealthPointe Primary Care. As a pre-physician assistant student studying biology, I was inspired to create a resource for these kids by both my classes at the University of Mississippi and my passion for pediatric …

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First-Principles Studies On The Electronic And Optical Properties Of Corundum Samples From The Tanga Region, Esther J. Tarimo Tarimo, Pulapa V Kanaka Rao, F.M. Stanley Dec 2024

First-Principles Studies On The Electronic And Optical Properties Of Corundum Samples From The Tanga Region, Esther J. Tarimo Tarimo, Pulapa V Kanaka Rao, F.M. Stanley

Tanzania Journal of Science

The characteristics of corundum are significant as they provide accurate identification supporting its diverse applications, facilitating the development of advanced materials, and ensuring its optimal use across various fields. Corundum alumina (α-Al2O3) samples collected from the Tanga mining region were characterized for crystallographic information using XRD analysis. This crystallographic information was used to build the crystal system of the sample in Biovia Materials Studio modelling and simulation software. The electrical and optical properties of this sample were examined by applying first-principles density functional theory and Generalized Gradient Approximations. For the calculations, a sampling mesh of 6×6×2 k-points, with an energy …

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Re: Comment Letter For Butte Priority Soils Operable Unit (Bpsou) Residential Metals Abatement Program (Rmap) Plan (Dated October 29, 2024), Molly Roby Dec 2024

Re: Comment Letter For Butte Priority Soils Operable Unit (Bpsou) Residential Metals Abatement Program (Rmap) Plan (Dated October 29, 2024), Molly Roby

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

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Msw Portfolio, Nichole Nuehring Dec 2024

Msw Portfolio, Nichole Nuehring

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

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The Fundamentals Of Advocacy, Tiffany Borland Dec 2024

The Fundamentals Of Advocacy, Tiffany Borland

Graduate Student Portfolios, Professional Papers, and Capstone Projects

A portfolio on a compilation and a celebration of my work throughout my MSW program.

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Portfolio Project Social Work 599, Christopher S. Plummer Dec 2024

Portfolio Project Social Work 599, Christopher S. Plummer

Graduate Student Portfolios, Professional Papers, and Capstone Projects

Abstract This portfolio reflects the culmination of my journey to earn a Master of Social Work (MSW) and demonstrates my mastery of the 10 core competencies outlined by the University of Montana School of Social Work. Through the lens of the five elements of advanced integrated practice, this work illustrates the transformation I underwent as I developed the skills, knowledge, and values essential to ethical and effective social work practice. Each section of this portfolio provides evidence of my growth in applying critical self-reflection, integrating historical and cultural contexts, bridging direct practice with community intervention, engaging in evidence-based practices, and …

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Exploring Strategies To Reduce Physician Turnover And Costs During The Covid-19 Pandemic, Ne'kecha Pellam Brabham Dec 2024

Exploring Strategies To Reduce Physician Turnover And Costs During The Covid-19 Pandemic, Ne'kecha Pellam Brabham

Walden Dissertations and Doctoral Studies

Hospitals face the risk of adverse business outcomes due to physician turnover, which can lead to increased costs and poorer patient care. C-suite executives, in collaboration with human resources managers (HRMs), are struggling to develop strategies to reduce turnover and burnout, while also enhancing key factors like job satisfaction and employee engagement grounded in the job demands-resources theory. The purpose of this qualitative pragmatic inquiry was to explore the strategies employed by HRMs in the healthcare industry to effectively reduce physician turnover and associated costs during the COVID-19 pandemic. The participants were 13 HRMs in the health care industry in …

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Black Mothering: Experiences Of Black Mothers In Safety Conversations With Black Sons, Theresa Libios Dec 2024

Black Mothering: Experiences Of Black Mothers In Safety Conversations With Black Sons, Theresa Libios

Walden Dissertations and Doctoral Studies

Black mothers raising Black sons in the United States face the immense challenge of preparing their Black sons for a society where police violence pose significant threats to their safety. The critical safety conversations, commonly referred to as "The Talk," highlight the need for culturally informed interventions to address the psychological toll on Black mothers. This study explored the lived experiences of Black mothers navigating these safety conversations, with the goal of fostering empathy and developing culturally competent mental health services. This qualitative hermeneutic phenomenological study, grounded in intersectionality theory, examined the interconnected influences of race, gender, and systemic oppression …

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Msw Portfolio, Andrea E. Anderson Dec 2024

Msw Portfolio, Andrea E. Anderson

Graduate Student Portfolios, Professional Papers, and Capstone Projects

The portfolio narrative includes a brief introduction to my academic journey including field related work. The ten social work competencies are used as a guide while I reflect on the required appendices, theoretical frameworks and orientation to practice throughout the narrative.

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Msw Professional Portfolio, Jessica J. Christian Dec 2024

Msw Professional Portfolio, Jessica J. Christian

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

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Msw Portfolio, Elizabeth Helen Brenneman J.D. Dec 2024

Msw Portfolio, Elizabeth Helen Brenneman J.D.

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

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Where I’M Meant To Be: Reflections From My Msw Experience, Brittany Nicole Mathena Dec 2024

Where I’M Meant To Be: Reflections From My Msw Experience, Brittany Nicole Mathena

Graduate Student Portfolios, Professional Papers, and Capstone Projects

No abstract provided.

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