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Graduate Theses and Dissertations

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The Ai Effect: Rethinking Design Workflows For Enhanced Productivity And Creativity, Israel Adeleye May 2024

The Ai Effect: Rethinking Design Workflows For Enhanced Productivity And Creativity, Israel Adeleye

Graduate Theses and Dissertations

Advancements in artificial intelligence and machine learning are transforming how designers work with computers. This thesis explores the developing relationship between artificial intelligence (AI) and design processes, focusing on how it impacts the creation of digital experiences. This study examines the impact of AI on design, highlighting how AI can improve efficiency and creativity alongside ethical challenges and the need to preserve human uniqueness in digital creations. It investigates AI's effects on design workflows, creativity, and the designer's evolving role through interviews, content analysis, case studies, and surveys. The aim is to understand AI's influence on designer productivity, innovation, and …


Cyclic Testing Of A Skewed Special Moment Frame Rbs Connection Having A Composite Concrete Slab, Adam Neil Kirchner May 2024

Cyclic Testing Of A Skewed Special Moment Frame Rbs Connection Having A Composite Concrete Slab, Adam Neil Kirchner

Graduate Theses and Dissertations

Special moment frames (SMFs) having reduced beam section (RBS) connections are commonly used in high seismic areas as they resist lateral forces while preserving critical welded connection regions. RBS SMFs provide brace-free, unobstructed frame options which can be favorable for architectural purposes. However, when building designs require non-rectangular framing, laterally skewed connections may be needed. Current design provisions for SMF connections provide only limited commentary on such non-orthogonal connections as limited research exists documenting skewed frame behavior. This study experimentally evaluates the cyclic behavior of a full-scale double-sided skewed SMF RBS specimen having a composite concrete slab. During the imposed …


Dna/Carbon Nanotube Hybrid Structure And Their Translocation Through A Nanochannel, Daniel Christoffel Viljoen May 2024

Dna/Carbon Nanotube Hybrid Structure And Their Translocation Through A Nanochannel, Daniel Christoffel Viljoen

Graduate Theses and Dissertations

DNA sequencing is of major importance as it is used in fields such as species differentiation, personalized medicine and food safety. Currently sequencing by synthesis is the most popular commercial method of sequencing DNA while Oxford nanopore’s protein based nanopores are the only portable commercial method. Current nanopore based devices have three main issues: Spacial resolution, translocation rate versus sensor strength and dealing with the persistence length of ssDNA. This thesis contributes to ongoing research that aims to create a nanochannel with integrated sensor based sequencing device. The project has two main objectives. The first objective is to improve the …


Empower Voices, Enhance Dignity A Study On Menstrual Hygiene Management Among Internally Displaced Menstruators In Wassa Idp Camp, Abuja, Fct., Shalom Joro Yabilsu May 2024

Empower Voices, Enhance Dignity A Study On Menstrual Hygiene Management Among Internally Displaced Menstruators In Wassa Idp Camp, Abuja, Fct., Shalom Joro Yabilsu

Graduate Theses and Dissertations

Nigeria’s humanitarian crisis has led to prolonged internal displacement, with many people forced to flee their homes due to armed conflict and communal violence. Internally Displaced Persons (IDPs) number in the millions and face numerous challenges that leave them vulnerable. Among those affected are menstruators, who face unique challenges related to managing menstruation in these dire circumstances. Despite significant research on various aspects of life within Internally Displaced Persons (IDP) camps, there remains a notable gap in addressing menstrual hygiene management (MHM) in this space. This study focuses on understanding and enhancing health literacy of MHM through a life-centered embodied …


Use Of Bcsa Cement In Soil-Cement Mixtures As A Rapid Flood Repair Technique, Mariel Mayori Rivero May 2024

Use Of Bcsa Cement In Soil-Cement Mixtures As A Rapid Flood Repair Technique, Mariel Mayori Rivero

Graduate Theses and Dissertations

The research discusses the vulnerable condition of hydraulic structures, specially dams and levees located in the United States, structures that are often times made of earthfill material and that have been greatly impacted by recent flood events. The need for a rapid setting material for active flood fighting efforts is inarguable, in order to mitigate collateral expenses caused by the often long closure times when repair is taking place, especially when dewatering is necessary. Therefore, this research tested different proportions of cement in soil-cement mixtures at varying moisture contents with the interest of evaluating the performance of the soil-cement when …


Turfgrass Soil Surfactants: Examining Active Ingredients, Application Strategies, And The Structure–Function Relationship In Sand-Based Putting Greens, Daniel O'Brien May 2024

Turfgrass Soil Surfactants: Examining Active Ingredients, Application Strategies, And The Structure–Function Relationship In Sand-Based Putting Greens, Daniel O'Brien

Graduate Theses and Dissertations

Soil surfactants, commonly referred to as wetting agents, are a leading water management strategy for golf courses. Non-ionic block copolymers are the most common type of turfgrass soil surfactant. However, differences in the registration process and labeling requirements allow soil surfactants to enter the marketplace accompanied by far-less data compared to other products used on golf courses. This has led to considerable confusion among golf course superintendents. Three primary sources of confusion are: (i) the widely-used marketing terminology of “penetrants” and “retainers” to classify wetting agents; (ii) active ingredients which in some cases are not disclosed at all; and (iii) …


Exploring The Effects Of N,N-Dimethylbiguanide And Ω-3 Pufas On Muscle Stem Cell Differentiation, Enayah Alhshim May 2024

Exploring The Effects Of N,N-Dimethylbiguanide And Ω-3 Pufas On Muscle Stem Cell Differentiation, Enayah Alhshim

Graduate Theses and Dissertations

The impacts of omega-3 (ω-3) fatty acid and metformin hydrochloride (Met-HCl) on muscle stem cells differentiation, mimicking the fetal muscle development under gestational diabetes mellitus (GDM), were investigated. ω-3 fatty acids have been known for their ability to regulate adipogenic transcription factors such as Sterol Regulatory Element-Binding Protien (SREBPs) and Peroxisome Proliferator-Activated Receptors (PPARs). This regulation resulted in gene expression modification for lipid metabolism and adipocyte differentiation, thus preventing excessive fat accumulation. Additionally, emerging evidence suggested that ω-3 fatty acids may also exert direct effects on myogenic processes that influence muscle stem cells proliferation, differentiation, and maturation. Meanwhile, Met-HCl, an …


Organization Of Change: The Journey From Probation To A Successful Accreditation Review, Erin Dail May 2024

Organization Of Change: The Journey From Probation To A Successful Accreditation Review, Erin Dail

Graduate Theses and Dissertations

Regional accreditation, seen as a necessary hurdle by many in higher education, is required to participate in Title IV funding. However, several studies indicate that the current accreditation process is broken. Institutions with more resources, both in staffing and funding, and more academically ready students are at an advantage for favorable accreditation outcomes. Those institutions serving the most at-risk students rely on Title IV funding the most and may be participating in a process in which they are less likely to succeed. This study seeks to explore the experiences of Accreditation Liaison Officers (ALOs) at Higher Learning Commission (HLC)-accredited community …


The Water That Will Be: A Qualitative Look Into The Effects Of Visual Imagery On Participation In Water Conservation Initiatives, Shane Martin White May 2024

The Water That Will Be: A Qualitative Look Into The Effects Of Visual Imagery On Participation In Water Conservation Initiatives, Shane Martin White

Graduate Theses and Dissertations

This dissertation explored the role of visual imagery in water conservation initiatives, focusing on its impact on public understanding, emotional connection, and willingness to participate. Drawing from the Theory of Planned Behavior and Affective Disposition Theory, the study investigated how art interventions can enhance comprehension and engagement with water conservation easements. Utilizing qualitative methods, including interviews, focus groups and PhotoVoice, data was collected from stakeholders in the Illinois River Watershed region. The research examined current levels of understanding regarding conservation easements, evaluated the effectiveness of visual imagery interventions in enhancing public awareness, and identified the potential for collaborative approaches between …


Identifying Grassland Cores In The Southeast: Relating Spatial Covariance To Avian Communities And Vegetation Structure, Lauren L. Berry May 2024

Identifying Grassland Cores In The Southeast: Relating Spatial Covariance To Avian Communities And Vegetation Structure, Lauren L. Berry

Graduate Theses and Dissertations

Globally, grasslands are declining in range, which is leading to a decline in grassland-dependent taxa. These declines can be attributed to a variety of issues, a major one being the encroachment of woody species into historic grasslands. There is a new framework for strategizing grassland management, referred to as “Defend the Core,” which calls for proactive management of intact grasslands, meaning conserving remaining grasslands by preventing woody encroachment in the first place. To successfully defend the core, it is imperative that we develop rapid methods to identify intact grassland cores for management priority. One method that can be used for …


High Bandwidth Hybrid Current Sensor Readout Interface For Power Applications, Asma Mahar May 2024

High Bandwidth Hybrid Current Sensor Readout Interface For Power Applications, Asma Mahar

Graduate Theses and Dissertations

High-density and power-efficient circuits have become realizable with the advent of wide bandgap semiconductor devices due to their high switching speed and lower conduction/switching losses. The operation of these circuits requires current information for protection, monitoring, and control. For the realization and a further boost in the efficiency of such power circuits, small size, non-invasive, high bandwidth current sensors with noise immunity, accuracy, and linearity are required. Various hybrid sensors have been reported to meet the requirements of emerging power circuits. A combination of a magneto resistor or Hall sensor and a coil is used to cover a wide frequency …


The Effect Of Microbial Bile Acid Metabolism On Clostridium Perfringens Virulence, Tahrir Jatli Alenezi May 2024

The Effect Of Microbial Bile Acid Metabolism On Clostridium Perfringens Virulence, Tahrir Jatli Alenezi

Graduate Theses and Dissertations

Clostridium perfringens is a predominant intestinal pathogen affecting both humans and animals, including chickens resulting in significant economic losses. In chapter I, I have overviewed the dynamics of the intestinal immune system, the composition of the intestinal microbiome, and how the microbiome influences inflammation in the development of Clostridium infection. The intricate interplay between immunity, microbiota, and their metabolites is likely critical in the pathogenesis of C. perfringens and uncovering these interactions may unveil new avenues for prevention and treatment. The objective of this chapter is to provide updated insights into the role of host-microbe interactions and their potential therapeutic …


Barriers To Participation In Research Sae Projects And Ffa Agriscience Fair Competitions, Jessica Hall May 2024

Barriers To Participation In Research Sae Projects And Ffa Agriscience Fair Competitions, Jessica Hall

Graduate Theses and Dissertations

Agricultural education plays a pivotal role in preparing students for careers in the ever-evolving field of agriculture. This study investigates the professional development and training needs of school-based agricultural education (SBAE) teachers in the context of research SAE projects and participation in FFA agriscience fair competitions. Through a comprehensive literature review and empirical inquiry, this study aims to identify teachers' confidence levels, perceived importance of tasks, professional development needs and barriers hindering student and teacher involvement in these activities. The research objectives were structured to address key aspects of SBAE teacher preparedness and student engagement. Findings reveal areas where teachers …


High-Power Dc-Dc Transformer For Medium-Voltage Grids With High-Voltage Sic Technology, Roderick Gomez May 2024

High-Power Dc-Dc Transformer For Medium-Voltage Grids With High-Voltage Sic Technology, Roderick Gomez

Graduate Theses and Dissertations

The objective of this dissertation is to present the theoretical analysis, design process, application and manufacturing of a proposed solid-state transformer intended for medium-voltage applications with minimal high-frequency oscillations. Galvanic isolation on medium-voltage DC-DC converters tend to employ large number of turns in the high voltage side of the transformers leading to non-negligible parasitic stray capacitances which form resonance tanks with the transformer inductances. Therefore, it is critical to estimate these parasitic capacitances to avoid severe high frequency oscillations which can significantly impact the converter performance. The main contribution of this thesis is the extension of a proposed custom-core design …


Career Skills Congruence: Transferring Military Talent To The Civilian Job Market: A Preregistered Study, Anna M. Amos May 2024

Career Skills Congruence: Transferring Military Talent To The Civilian Job Market: A Preregistered Study, Anna M. Amos

Graduate Theses and Dissertations

The training and experience gained through U.S. military service instill a strong sense of discipline, loyalty, and duty to one's country while preparing service members for the challenges they face during their military careers. Military culture is a defining aspect of servicemembers' identities, especially for those who have spent significant time in the military. The problem is that service members often enculturate into a life where they adopt an identity incongruent with the ability to engage in a smooth transition to civilian culture. The purpose of this cross-sectional regression study is to test social identity theory and transition theory that …


Developing Anisotropic Soft Matter As Functional Materials To Interface With Biological Systems, Homa Ghaiedi May 2024

Developing Anisotropic Soft Matter As Functional Materials To Interface With Biological Systems, Homa Ghaiedi

Graduate Theses and Dissertations

Liquid crystals (LCs) constitute a subset of soft matter possessing hybrid characteristics from both liquid and crystalline phases. In this state, the center of masses remains uncorrelated similar to an isotropic phase, while the long axis of molecules aligns in parallel, resulting in molecules exhibiting orientational and positional order, either individually or concurrently. The directional alignment inherent in LCs arises from the asymmetrical shape and structure of the constituent molecules, causing a spontaneous self-assembly into ordered phases. This cooperative molecular behavior manifests distinctive optical features when subjected to cross polarizers. The remarkable sensitivity of LCs to external stimuli, including temperature, …


Migration And Breeding Ecology Of King Rails (Rallus Elegans) In Southeast Arkansas, Jessica Schmit May 2024

Migration And Breeding Ecology Of King Rails (Rallus Elegans) In Southeast Arkansas, Jessica Schmit

Graduate Theses and Dissertations

King Rails (Rallus elegans) are a secretive marsh bird species of conservation concern in Arkansas. Freddie Black Choctaw West WMA in southeast Arkansas has multiple confirmed pairs of breeding King Rails and offered an opportunity to investigate King Rail migration ecology, as well as nesting ecology and nest site selection. In Chapter 1, we determined migratory status (resident vs. migratory) and described seasonal movement. To do this, we captured and outfitted 23 birds with Argos GPS tags to track migration patterns throughout the season. We found that most of the population did not make long distance migrations but instead were …


More Than A Monolith: Three Essays On The Diverse Journey Of Immigrant Students And Their Postsecondary Outcomes, Rian Rinaldi Djita May 2024

More Than A Monolith: Three Essays On The Diverse Journey Of Immigrant Students And Their Postsecondary Outcomes, Rian Rinaldi Djita

Graduate Theses and Dissertations

For many years, the United States (U.S.) has been the country with the largest number of immigrants. As a result, policy about immigrant students’ success becomes crucial since it carries not only ethical implications but also economic and societal implications. While there have been other alternatives for students’ success, such as Career and Technical Education (CTE), undeniably, college is still seen as a common pathway to success (e.g., Choi, 2015; Heckman et al., 2018; Turner, 2004). Unfortunately, there are several gaps in the literature on immigrant students’ success and postsecondary outcomes. First, while there is an increasing number of immigrants …


The Expression Of Recombinant Cas9 Proteins In E. Coli Bl21(De3) Strains, Morgan Reese May 2024

The Expression Of Recombinant Cas9 Proteins In E. Coli Bl21(De3) Strains, Morgan Reese

Graduate Theses and Dissertations

Abstract Extensively used for genome editing, CRISPR-Cas9 is a relatively new tool that has made a major impact in the genomic engineering landscape. Due to this, the production of CRISPR proteins that are not commercially available can limit research applications. Here, we present methods for optimizing laboratory scale production of CRISPR proteins including Cas9. The method uses IPTG to induce gene expression of the specified Cas9 and nickel column purification to isolate proteins. CRISPR proteins are validated for purity by SDS-PAGE gel, western blot, and for activity by in vitro digestion. We thoroughly validate and compare the effectiveness of BL21(DE3) …


Two-Photon Quantum Gates With Single Atoms, Arkan Mahmood Hassan May 2024

Two-Photon Quantum Gates With Single Atoms, Arkan Mahmood Hassan

Graduate Theses and Dissertations

In the first part of this dissertation we study in detail the interaction of single-photon and two-photon wavepackets with a three-level V-type atom in a cavity without any control over the interaction time. We solve analytically for the spectrum of the outgoing wavepackets as a function of the incident wavepacket that is valid in all the cavity limits. We consider the potential performance of this system as a CPHASE gate by considering several special input pulses. We optimize for the gate fidelity and find values of the cavity, atomic and pulse parameters that yield a conditional phase shift of π, …


Determination Of Factors Influencing Microbial Food Safety Risks Of Additive Manufacturing And 3d Printing Of Food, Allyson Nichole Hamilton May 2024

Determination Of Factors Influencing Microbial Food Safety Risks Of Additive Manufacturing And 3d Printing Of Food, Allyson Nichole Hamilton

Graduate Theses and Dissertations

The burgeoning field of 3D food printing introduces opportunities for customizing the physicochemical properties of food, offering tailored solutions in color, shape, and texture. Despite its potential, the implications of this technology on food safety, particularly the efficacy of manufacturer-recommended cleaning protocols for stainless steel food ink capsules, the transferability of pathogens from a contaminated food ink capsule into the food ink based on macronutrient composition of the food, and the impact of storage conditions on pathogen viability, have not been thoroughly investigated. This dissertation provides a comprehensive analysis of these aspects, focusing on the control of foodborne pathogens and …


Hardware Trojan Detection Utilizing Graph Neural Networks And Structural Checking, Hunter Nauman May 2024

Hardware Trojan Detection Utilizing Graph Neural Networks And Structural Checking, Hunter Nauman

Graduate Theses and Dissertations

The integrated circuit (IC) industry has experienced exponential growth, particularly in the complexity and scale of hardware designs. To sustain this growth, faster development cycles and cost-effective solutions have been the focus for many companies. One strategy to maintain this growth is through the incorporation of third-party intellectual property (IP) into the IC design process. Outsourcing the production of sub-components reduces development time and enables faster time-to-market, however, this approach also introduces the threat of Hardware Trojans. Hardware Trojans, defined as any malicious modification or addition to an IC, pose significant security risks due to their small size, low activation …


Gaseous Ozone To Improve The Microbial Safety Of Spices, Seeds, And Nuts, Arshpreet Kaur Khattra May 2024

Gaseous Ozone To Improve The Microbial Safety Of Spices, Seeds, And Nuts, Arshpreet Kaur Khattra

Graduate Theses and Dissertations

Due to the increasing number of reported outbreaks of pathogens in low-moisture foods (LMFs), there is a need to investigate novel non-thermal gaseous technologies to increase the microbiological safety of spices, nuts, and seeds without compromising the product quality. The objective of this study was to inactivate Salmonella spp. in different spices, seeds, and nuts using gaseous ozone treatment and evaluate the suitability of Enterococcus faecium as a potential surrogate for Salmonella. Each food product (dried basil leaves, black peppercorn, chia seeds, and walnuts) was separately inoculated with a 5-strain Salmonella and E. faecium cocktail and equilibrated to water activity …


Guided Pathways: How Early Major Declaration Impacts Student Graduation Rates, Chris Mcbeath May 2024

Guided Pathways: How Early Major Declaration Impacts Student Graduation Rates, Chris Mcbeath

Graduate Theses and Dissertations

Increasing graduation rates continues to be a high priority for administrators at community colleges nationwide. While several factors affect graduation rates, many researchers focus on how a student’s status as declared or undecided may impact their likelihood of graduating. This study aims to examine the potential relationship between matriculating with or without a major declared and degree completion. There exists a perception that an early decision about a major is a critical step in ensuring students graduate. Many institutions require or strongly encourage students to declare a major before enrolling in their first semester. Previous research about undeclared students and …


Examining Eight-Year Bachelor’S Degree Completion Rates For U.S. Institutions Offering Competency-Based Education And Comparable Traditional Institutions, Gray Carpenter Church May 2024

Examining Eight-Year Bachelor’S Degree Completion Rates For U.S. Institutions Offering Competency-Based Education And Comparable Traditional Institutions, Gray Carpenter Church

Graduate Theses and Dissertations

Competency-based education (CBE) is a learner-centric framework that emphasizes what students “know and can show” more than how much time they spend in the classroom. CBE advocates claim that by allowing students to take as little or as much time as they need to demonstrate their mastery of course competencies, students develop higher levels of proficiency and are better prepared to enter the workforce. Despite having been in existence for decades, CBE has not been widely adopted in postsecondary education, and studies of CBE as a viable alternative to traditional methods of education remain scarce. The purpose of this cross-sectional …


Does Diversity Ideology Moderate Participants’ Perceptions Of Therapists Who Do And Do Not Broach?, Emily Allen May 2024

Does Diversity Ideology Moderate Participants’ Perceptions Of Therapists Who Do And Do Not Broach?, Emily Allen

Graduate Theses and Dissertations

Introduction. The literature has grown considerably regarding the act of broaching racial, ethnic, and cultural factors in therapy. Many have highlighted its positive impact on the therapeutic alliance, but little empirical work explores how individual differences influence a client’s response to broaching. This study assessed the effects of participant diversity ideology and therapist broaching behavior on perceptions of a therapist’s effectiveness. I hypothesized that participants in the therapists broaching condition would perceive the therapist to be more effective than participants in the no broaching condition. I also hypothesized that participants’ colorblind diversity ideology and therapist broaching condition would interact, such …


Genomic Characterization Of Enterococcus Spp Infecting Chicken Embryo, Aishat Olaoluwa Lawal May 2024

Genomic Characterization Of Enterococcus Spp Infecting Chicken Embryo, Aishat Olaoluwa Lawal

Graduate Theses and Dissertations

Chicken embryo mortality has been attributed to bacterial infections and can lead to a decline in hatchability, posing potential losses in the broiler industry. This study aims to investigate the vertical transmission of specific bacterial pathogens from breeder hens to subsequent broiler flocks through MGEs and their association with host specificity. In our sampling of 360 eggs from a broiler flock, we isolated various Enterococcus species, including E. gallinarum and E. faecalis, from incubated egg yolks or aborted embryos. E. avium was found in unincubated bad yolks. Other species like Streptococcus, Lactobacillus, and Bacillus were observed but presumed to be …


Exploring The Potential Of Electromagnetic-Driven Energy Technologies In Preventing Microbial And Aflatoxin Contamination Of Grains, Abass A. Oduola May 2024

Exploring The Potential Of Electromagnetic-Driven Energy Technologies In Preventing Microbial And Aflatoxin Contamination Of Grains, Abass A. Oduola

Graduate Theses and Dissertations

Electromagnetic-driven energy such as infrared (IR) technology holds great potential in deactivating Aspergillus flavus spores and prevents aflatoxin B1 (AFB1) contamination. Aflatoxins, highly toxic secondary metabolites primarily produced by Aspergillus species within the Flavi section (A. flavus, A. parasiticus, and A. nomius), pose substantial health risks to both humans and animals due to their significant toxicity and carcinogenic properties. Detecting and quantifying the presence and proliferation of these harmful fungi on food materials can be achieved by measuring the concentration of ergosterol. Ergosterol is a sterol compound produced in the cell membranes of fungi during their growth, providing …


High Performance Silicon Carbide Based Converters For Powertrain Electrification, Nan Lin May 2024

High Performance Silicon Carbide Based Converters For Powertrain Electrification, Nan Lin

Graduate Theses and Dissertations

With the increasing concern towards environment protection, electric vehicles (EVs) and hybrid electric vehicles (HEVs) have become popular in recent years. They not only help reduce carbon emissions, but also come with other benefits such higher efficiency and better user experience. Many countries and vehicle manufactures have made their plans to keep up with this trend in vehicle electrification. Powertrain is an assembly of components in a vehicle that pushes it forward. As for EVs and HEVs, their powertrains are composed of one or more power electronics converters, which are significant to the system. Silicon carbide MOSFETs have shown superior …


Key Practices In P-6 Integrated Stem Education: A Delphi Panel Investigation, Leah R. Cheek May 2024

Key Practices In P-6 Integrated Stem Education: A Delphi Panel Investigation, Leah R. Cheek

Graduate Theses and Dissertations

Throughout the past two decades policymakers, practitioners and researchers have been summoned to pursue best practices to address and implement improvements in STEM education for P-12 students (Archer, Moote, MacLeod, Francis, & DeWitt, 2020; Emrey-Arras, 2018; Hodson, 2003; National Research Council, 2012). Irrespective of the longstanding investment of time and resources towards STEM education, students’ patterns of STEM involvement in schools continue to be persistently unchanged (Archer, et al., 2020; Ro & Knight, 2016) and even fewer Americans are entering STEM disciplines in the workforce (National Science Foundation, 2018). The purpose of this three-article dissertation study is to support effective …