Digital Commons Network^™

Game Changing Education: Empowering High School Stem Teachers To Teach Engineering Using Games, Leslie Brown

All Graduate Theses and Dissertations, Fall 2023 to Present

In response to the Next Generation Science Standards (NGSS) released in 2013, there was a nationwide push for K-12 schools to include engineering concepts in science classrooms. However, there is an overall lack of teacher preparedness and training towards engineering topics as shown by common engineering misconceptions. To improve this issue, I initiated a qualitative study to describe the strategies and attitudes of high school science, technology, engineering, and mathematics (STEM) teachers that have implemented game-based, engineering activities into their classroom. Game-based learning is an instructional framework that utilizes game-like elements in a classroom and was used in this study …

Caregiver Mand Training: Evaluating The Effects Of Using Bug-In-Ear Coaching Via Telehealth, Makenna P. Carnesecca

All Graduate Theses and Dissertations, Fall 2023 to Present

Applied Behavior Analysis has been seen to be an effective way to help teach skills to children with autism. Caregivers' involvement in teaching these skills is beneficial for their child's progress. Using Bug-in-Ear coaching, which provides in-the-moment instructions and feedback to caregivers via Bluetooth headphones, has been demonstrated to be a potential way to train caregivers to teach skills to their children. This current study aimed to evaluate if the use of Bug-in-Ear coaching via telehealth was an effective way to teach caregivers to train their children how to ask for wanted foods using picture cards. The results of this …

Aerobic Biodegradation Of Algae-Derived Bioplastics Under Controlled Composting Conditions, Clayton J. Lords

All Graduate Theses and Dissertations, Fall 2023 to Present

Plastics are versatile polymers that have become critically important materials in many industries. Although plastics are important and useful materials, they account for vast amounts of environmental pollution and climate change contribution. Sustainable bioproducts are becoming increasingly important in the effort to mitigate the impacts of pollution and climate change. The scale of environmental damage caused by plastic pollution highlights the need to implement sustainably sourced biodegradable plastics within the global economy. Bioplastics are materials that may be manufactured from biological materials or can biodegrade under certain conditions. Algae are microorganisms that can be grown using nutrient-rich municipal wastewater; the …

Potamogeton Crispus Invasion: Impacts On Native Aquatic Plants And Associated Faunal Habitat, Meghan-Grace Slocombe

All Graduate Theses and Dissertations, Fall 2023 to Present

Aquatic invasive plants are non-native plants that invade a water body and displace native aquatic plants. Invasion depletes the native plant community's ability to provide ecosystem services, including improved water quality, decreased problematic algae, and increased animal habitat. The loss of these ecosystem services reduces the value of fishing, boating, and swimming opportunities in aquatic ecosystems. The potential changes in plant communities and services are particularly important at sites targeted for restoration because project goals typically include increasing ecosystem services, including wildlife habitat. Curly-leaf pondweed (Potamogeton crispus L.) is a problematic invasive species in North America. To better manage …

Learning Outdoors: A Pilot Program For Early Childhood Educator Professional Development, Cari Lee Gongora

All Graduate Theses and Dissertations, Fall 2023 to Present

Research supports the use of outdoor spaces as a learning environment for child development; however, some early childhood educators may struggle to support learning when outdoors with young children. Reframing teacher mindset towards outdoor environments, gaining a knowledge of child development, and understanding how it applies within the context of naturalist studies have been identified as three key areas supportive for early childhood educators as they work outdoors with young children. Additionally, designing professional development sessions with targeted material, opportunities for observations, and providing time with a coach for support may further support learning and implementation of targeted material.

This …

Designing Accessible And Dependable Tools For Vocational Rehabilitation Data Analysis, Ruth E. Taylor

All Graduate Theses and Dissertations, Fall 2023 to Present

Since 1973, the U.S. Rehabilitation Services Administration (RSA) has partnered with state vocational rehabilitation (VR) agencies to help individuals with disabilities achieve meaningful employment and independence. RSA-911 datasets play a crucial role in this effort by capturing detailed participant data, but their complexity can hinder effective analysis.

To simplify this process, we present an R software package to streamline the cleaning and analysis of RSA-911 and Transition Readiness Toolkit (TRT) data, a new measure of program effectiveness. We also deliver a user-friendly dashboard, empowering both VR researchers and counselors with the opportunity to conduct analyses. Using our developed tools, we …

Identifying And Addressing Current Gaps In Knowledge And Treatment Dissemination For Individuals With Trichotillomania, Leila K. Capel

All Graduate Theses and Dissertations, Fall 2023 to Present

Trichotillomania is an impairing and debilitating mental health condition, and while the research in this area is growing, this population is underserved. The aim of this project was to identify gaps in the research that may be contributing to lack of treatment access and begin filling those gaps. The first gap is knowledge of how treatments work and for whom they work best. While there are a variety of treatment options and ways of delivering treatment, individual factors that predict who will benefit most are not well investigated. We explored the individual factors, and aspects of treatment that we believe …

Deterring Gray Zone Activity In A Strategic Flashpoint: U.S. Freedom Of Navigation Operations And China’S Maritime Militias, Joseph D. Potter

All Graduate Theses and Dissertations, Fall 2023 to Present

In today’s complex world, nations often use irregular forces, such as militias, to achieve political goals without escalating conflicts. This study examines how the United States of America uses its Navy’s Freedom of Navigation Operations in the South China Sea to influence the behavior of Chinese maritime militias. These militias are involved in activities such as harassment, assault, and other aggressive or deceptive actions. By analyzing data from 2012 to 2024, this research discovered 239 incidents and discovers that these militias reduce their confrontational activities during Freedom of Navigation Operations to avoid direct conflict while continuing their broader objectives in …

Analyzing Sedentism In The Built Environment: A Case Study In Archaeological Geophysics At Boundary Village, Uintah County, Utah, Alix Sofie Piven

All Graduate Theses and Dissertations, Fall 2023 to Present

This thesis presents a case study that evaluates the ability of near-surface remote sensing to generate archaeological data suitable to answer questions about human behavior. Specifically, this project assesses the ability of two remote sensing methods, ground-penetrating radar (GPR) and magnetic gradiometry to resolve subsurface archaeological features that are markers of sedentism. In this study, the markers of sedentism are features of village sites where their variability is linked to the anticipated and actual length of time spent occupying a domestic site. A comparative dataset was generated to assess how specific subsurface archaeological features would look in GPR and magnetic …

Measuring Support In Couple Relationships: The Psychometrics Properties Of The Couple Support Behavior Questionnaire, Jacqueline Johnson

All Graduate Theses and Dissertations, Fall 2023 to Present

Couple support, a unique form of social support, as defined in this thesis is the felt sense of being upheld, valued, lifted up, and empowered by your romantic partner, during both times of distress and success. In this master’s thesis, I used secondary data provided by Dr. Ryan Seedall and conducted statistical analyses to develop a new measure, the Couple Support Behavior Questionnaire (CSBQ). Using data from 443 individuals who had all been in a relationship for at least three years and were all above the age of 18, I used statistical methods to shorten and provide a 19-item measure, …

Uv-A Light And Heat-Activated Antimicrobial And Biodegradable Materials For Food Packaging And Preservation, Michael J. Bodily

All Graduate Theses and Dissertations, Fall 2023 to Present

Current food packaging materials are often non-biodegradable and harmful for ingestion, which poses a threat to the environment and public health. Thus far, the dangers of microbial contamination of food on human health have outweighed the risks associated with using these conventional packaging plastics. A possible solution to these issues is to use a combination of innovative materials and microbial inactivation methods that can potentially both reduce plastic waste and combat harmful microorganisms. In this study, two antimicrobial, biodegradable composites were developed and tested for their ability to inactivate two types of bacterium, Escherichia coli K12 and Listeria innocua, …

Development Of The Sexual Mindfulness Measure For Abstinent Persons, Kaitlyn Zito

All Graduate Theses and Dissertations, Fall 2023 to Present

Sexual wellbeing plays a crucial role in overall health, influencing physical, emotional, social, and even spiritual aspects of life. One key factor in sexual wellbeing is sexual mindfulness, or the ability to be aware and accepting of one's sexual thoughts, feelings, and sensations. While previous research has focused on sexual mindfulness in romantic relationships, little is known about how it applies to abstinent individuals. To address this gap, I developed a 16-item validated measure of sexual mindfulness specifically for abstinent individuals: the Sexual Mindfulness Measure for Abstinent Persons (SMM-AP). This tool adapts key elements from the Five Facets of Mindfulness …

A Survey Of Master's Qualifying Exam Practices And Content In Real Analysis, Zachary M. Coverstone

All Graduate Theses and Dissertations, Fall 2023 to Present

Graduate programs in mathematics are intended to develop experts in mathematics. As part of a graduate program, many students are expected to engage in a qualifying examination that can serve myriad purposes. This dissertation investigates real analysis qualifying examinations at the master's level through a nation-wide survey of institutions in the Association of Public and Land-Grant Universities (APLU). This study reveals the practices in administration of real analysis qualifying exams, institutions reported offering traditional, pencil-and-paper exams and generally asked students to prepare individually using previously administered exams. The survey results show that approximately two in three APLU institutions offering master's …

Determining The Structure And Function Of Type Iv-A Anti-Crisprs, Olivine Redman

All Graduate Theses and Dissertations, Fall 2023 to Present

Bacteria face a constant existential threat in the form of infection by viruses along with other forms of mobile genetic elements, such as bacteriophage and transposable elements. To survive, bacteria and other prokaryotes have evolved various immune systems to evade these would-be invaders. One such immune system is the CRISPR-Cas system, an adaptive immune system able to record the genetic signature of invading viruses in order to recognize and destroy them should they be encountered again in the future. In this thesis I present data that sheds light on the mechanism of one particular subtype of CRISPR-Cas systems: the type …

Quantifying Buoyancy-Driven Exchange Flows Over Obstacle At The Great Salt Lake Using Rans Cfd, Mohammad Ikram Hossain Talukdar

All Graduate Theses and Dissertations, Fall 2023 to Present

This study examines how barriers, such as berms, affect the movement of water in the Great Salt Lake in Utah. The lake experiences two types of water flow: one, called a unidirectional gravity current, where denser water flows in a single direction, and another, known as buoyancy-driven exchange flow, where water flows in two opposite directions due to differences in both water density and surface elevation. These flows are important for understanding how water mixes and moves between the northern and southern parts of the lake. Using computer models, we simulated how these two types of water flows behave when …

Increasing The Spatial Resolution Of Snow Hydrology Data And Augmenting Existing Hydrology Monitoring Networks Using Low-Cost Snow Sensing Stations, Braedon Dority

All Graduate Theses and Dissertations, Fall 2023 to Present

Snow is a crucial part of the water cycle, especially in mountainous regions where melting snow provides water for millions of people. However, accurately measuring how much water is stored in snow is challenging. Current monitoring networks, such as the snowpack telemetry (SNOTEL) network in the western United States, provide valuable data, but have gaps in coverage and are expensive to operate and expand. This research explores a more affordable way to improve snow measurements by designing and testing low-cost snow sensing stations. These stations use open-source datalogger and software technology along with research-grade sensors to measure important snow variables. …

Surface Vortex Mitigation At Submerged Intakes, Camren Todd

All Graduate Theses and Dissertations, Fall 2023 to Present

Surface vortices at submerged intakes entrain air, convey debris, and reduce efficiency. This research investigates the effect of lid geometry on mitigation of surface vortices at submerged intakes in the context of still reservoirs. Six lid geometries were evaluated: three solid lids of increasing diameter, two lids with perforations, and one lid fitted with a downward curtain. Vortex severity was measured by Alden’s vortex type rating scale, surface-dimple diameter, and qualitative video analysis.

The perforated lid extension and the curtain configurations were most effective at mitigating vortices. The curtain configuration negated all surface swirling by redirecting a portion of the …

Color Expressions In Euripides’ Ion, Erik Shelley

All Graduate Theses and Dissertations, Fall 2023 to Present

This analysis explores color expressions in the play Ion by the ancient Greek playwright Euripides. Because the ancient Greeks experienced color differently, I examined words used in the play, including light, dark, fire, green, water, blood, and gold. These expressions imply different themes and concepts that Euripides uses to portray the duality between his two main characters, Ion and Creusa. This thesis showed how the mother-son pair acts as a foil for the different aspects of color found throughout the play that reflect ancient Greek culture.

Scheduling Charging For Fleets Of Battery Electric Vehicles: Techniques For Modeling And Real-Time Operation, Justin J. Whitaker

All Graduate Theses and Dissertations, Fall 2023 to Present

While electric vehicles (EVs) are becoming increasingly popular and can provide cost, maintenance, and environmental benefits, they present unique challenges for regular operation, especially in fleets of vehicles. The limited range, long charging times, and high power requirements of EVs complicate the operations of fleets comprised of EVs. Additionally, the charging costs of EVs can be complex, depending on the time of charging, the energy charged, and the power level of the charging session. These complex charging costs can be significantly affected by the presence of uncontrolled loads. These challenges are further complicated by the inevitable variations in the real …

Effects Of Light Intensity On Algae Biofilms In Rotating Algae Biofilm Reactors (Rabr), Joshua D. Wintch

All Graduate Theses and Dissertations, Fall 2023 to Present

There is a growing need for economically and ecologically friendly wastewater treatment processes. Utilizing natural algae biofilms to remediate excess nitrogen and phosphorus from municipal wastewater is a treatment technique of academic interest. Utilizing natural algae in rotating algae biofilm reactors (RABR) is a potential engineering application of algae biofilms for municipal wastewater anaerobic digestor effluent treatment. The ideal reactor operation would use sunlight as the light source for algae growth, however, there is little academic research on algae biofilm growth productivity across natural sunlight light intensity ranges. This research seeks to understand the relationship between rotating algae biofilm reactor …

A Randomized Controlled Trial Of Self-Help Acceptance And Commitment Therapy And Cognitive Behavioral Therapy For Perfectionism, Emily M. Bowers

All Graduate Theses and Dissertations, Fall 2023 to Present

Many college students are struggling with perfectionism, a tendency to set extremely high standards for themselves, which can lead to stress and dissatisfaction. We looked at whether self-help books based on two different types of therapy, acceptance and commitment therapy (ACT) and cognitive behavioral therapy (CBT), can help reduce unhelpful perfectionism. We looked at how well ACT and CBT self-help books worked for reducing perfectionism, compared to students who did not receive either book. College students in the study completed surveys at the beginning, halfway through, after finishing the book, and again one month later. We found that students who …

Quantifying The Threshold For Fragmentation Of Newtonian And Non-Newtonian Drops, Aditya Parik

All Graduate Theses and Dissertations, Fall 2023 to Present

This dissertation investigates how the properties of liquid drops influence the minimum aerodynamic forces needed to cause the drop to fragment (breakup). For this work, we focus only on aerodynamic forces that are applied on a stationary drop by a sudden, uniform flow, a process called impulsive acceleration. Previous studies have largely focused on the fragmentation of spherical drops of Newtonian fluids (liquids with constant viscosity, like water), when impulsively accelerated in air-like ambient medium. Such systems only capture a limited range of drop and ambient properties (described by non-dimensional groups). Many real-world applications, such as aerial fire retardant delivery, …

Challenging Behavior In Inclusive Postsecondary Education Programs, Samantha J. Nercesian

All Graduate Theses and Dissertations, Fall 2023 to Present

Inclusive postsecondary education programs – higher education programs that are specifically designed for individuals with intellectual disabilities – have grown exponentially in the last 10 years. With this growth has come the emergence of several barriers to inclusive postsecondary education admission and completion. Given the relatively short time inclusive postsecondary education programs have existed, only a small amount of research has looked into barriers that prevent graduation from inclusive postsecondary education programs. One barrier in particular has received little to no attention from researchers – challenging behavior. Challenging behavior is a construct that includes socially inappropriate behaviors, which may harm …

Electromagnetic Sensor Sampling Volumes And Water Content Calibration In Coarse-Textured Porous Media Using Layered Mixing Theories, Chieh Yun Chang

All Graduate Theses and Dissertations, Fall 2023 to Present

Measuring soil water content is crucial for various applications, such as agriculture and environmental monitoring. Scientists use sensors that rely on electromagnetic waves to estimate soil water content by measuring the dielectric of media. However, factors, including the frequency of the sensor's measurements, soil particle size and distribution, and the soil's electrical conductivity, can affect the dielectric measurements and, consequently, the accuracy of the water content estimation. To improve the accuracy of electromagnetic-based sensors, it is important to calibrate them properly and understand their sensing volume to ensure the use of an appropriately sized calibration container. In this study, we …

Novel Horticultural Approaches For Reduced Gravity And Controlled Environment Agriculture, Sarah Elizabeth Schreck

All Graduate Theses and Dissertations, Fall 2023 to Present

On July 16, 1969, Apollo 11 achieved the first successful moon landing, marking a significant milestone in human space exploration. This historic moment effectively ended the space race between the United States and the Soviet Union, and since then, countries around the world have continued to advance their space programs. While the space race has evolved, the next major challenge lies in sending humans to Mars—a journey that could take 6 to 9 months each way, presenting numerous challenges, including the critical issue of nutritional sustainment for the crew.

This thesis addresses key aspects of a broader effort to support …

The Impact Of General And Religious/Spiritual Minority Stressors On Lgbtq Spiritual Health, Adlyn Perez-Figueroa

All Graduate Theses and Dissertations, Fall 2023 to Present

A great deal of research has focused on the impact of minority stress on the mental and physical health of lesbian, gay, bisexual, transgender, and queer (LGBTQ) individuals, but little is known about how minority stress impacts spiritual health. The purpose of this study was to develop a new theory of LGBTQ spiritual health. Another purpose was to explore how the impact of minority stress, such as discrimination, differs in everyday settings vs religious/spiritual (R/S) settings. A total of 227 LGBTQ participants were recruited online using a Prolific Survey Panel. Multiple regression analyses were used to determine: (a) if minority …

Effects Of Plant Biostimulants On Onion Growth And Production Under Greenhouse And Field Conditions, Prakriti Nepal

All Graduate Theses and Dissertations, Fall 2023 to Present

The escalating impact of climate change on agricultural production underscores the need to investigate sustainable crop enhancement methods. This research explores the use of plant biostimulants to grow onion (Allium cepa L.) under varying environmental conditions. In the initial germination and greenhouse screening, seven biostimulants were tested on ‘Vaquero’ onion seeds: three bacterial products (Continuum, Spectrum DS, and Tribus Original), two mycorrhizal products (Mighty Mycorrhizae and Myco Apply), one seaweed extract product (Seaweed), and one product containing humic acid (Huma Pro 16). Mighty Mycorrhizae, Continuum, and Myco Apply supported faster germination, while seeds treated with Spectrum and Seaweed took …

A Comparison Of Principal Motivational Orientation And The Orientation Of Principal Actions To Motivate Teachers, Charles K. Stewart

All Graduate Theses and Dissertations, Fall 2023 to Present

This study was planned and conducted to evaluate the correlation between a principal’s dominant motivation type (intrinsic or extrinsic) related to their dominant method to motivate others (intrinsic or extrinsic). The study included nine elementary school principals who led schools to high levels of academic performance. Three participating principals were selected from a school with high poverty rates. Three other principals were selected from schools with medium poverty rates, and three more were selected from schools with low poverty rates.

The researcher collected information from the nine participating principals regarding factors that motivate them to improve student learning at their …

Dynamics Of Rotating 2d Ellipse In Stratified Flow, Anton G. Kadomtsev

All Graduate Theses and Dissertations, Fall 2023 to Present

Submersible vehicles that move through seawater are subjected to a variety of effects. Seawater has a non-uniform density because of uneven heating and the tendency of dense saltwater to sink. This non-uniform density distribution induced by gravity is known as stratification and introduces vertical confinement and internal gravity waves to flows around bodies. Along with translational motion, these vehicles also perform rotational motion. To identify the effects of density gradient, body shape, and rotation on the flow, 2D direct numerical simulations (DNS) are run and analyzed. The simulations are conducted using the open-source CFD solver Nek5000, utilizing its overset-grid-based methodology. …

The Effect Of Dietary Protein Source On Gut Health, Spencer Lawson Schow

All Graduate Theses and Dissertations, Fall 2023 to Present

We investigated the impact of protein source in a western-style diet on colon cancer, colitis, and the gut microbiome. The Western dietary pattern is energy-dense, low in fiber, and has a sub-optimal micronutrient profile. Our group has formulated the Total Western Diet (TWD) that emulates the Western dietary pattern using survey data (NHANES), and we have demonstrated that this diet increases gut inflammation and colorectal cancer relative to a healthy control diet (AIN-93G), which is optimized for mouse health. However, the effect of protein source in the TWD and its effects on gut health have yet to be investigated.

Recent …