Digital Commons Network^™

Teaching Distributed Application Design Using Drones, Cameron Frandsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis provides a new platform that instructors can use to create a learning environment for students to learn how to design and implement distributed applications. One possible way to use the platform uses milestones to test the student’s understanding of different concepts. Milestones contain pretests that students can use to test their code. Each milestone focuses on a different concept, including interprocess communication, reliability, and security. A monitor process can be created by the students to provide away for the instructor to see how well the students are learning the concepts by using a monitor process. The platform gives …

Arsenic Release From Surface Soils Induced By Stormwater Bioretention, Kaisa H. Patterson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Arsenic is a naturally occurring element known for its chronic and acute toxicity. The solubility of arsenic is highly dependent on environmental conditions. The soils of Cache Valley, UT, contain naturally occurring arsenic.

Bioretention systems rely on a combined plant-soil system to remove pollutants carried by stormwater, typically nitrogen, phosphorus, dissolved organic carbon, and select metals. Phosphate from stormwater potentially increases arsenic mobility, which makes stormwater pollutant loading an important factor for evaluating risks associated with stormwater bioretention. Pollutant removal in these systems occurs through sorption of contaminants onto the soils, physical filtration by the soil media, and uptake by …

Applications Of Machine Learning In High-Frequency Trade Direction Classification, Jared E. Hansen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The correct assignment of trades as buyer-initiated or seller-initiated is paramount in many quantitative finance studies. Simple decision rule methods have been used for signing trades since many data sets available to researchers do not include the sign of each trade executed. By utilizing these decision rule methods, as well as engineering new variables from available data, we have demonstrated that machine learning models outperform prior methods for accurately signing trades as buys and sells, achieving state-of-the-art results. The best model developed was 4.5 percentage points more accurate than older methods when predicting onto unseen data. Since finance and economics …

“What Makes ‘Em Tick?” The Impact Of Parenting Style And Parent-Initiated Motivational Climate On Student Athletes’ Motivation Orientation In The Context Of Intercollegiate Athletics, Logan Kateryna Lyons

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Motivation has become a widely studied construct in intercollegiate athletics, as coaches and administrators have sought to maximize the socioemotional and performance aspects of athletic competition. While researchers acknowledge parents as having an important role in the socialization of motivation, research in this area has largely focused on sport-specific parenting practices, failing to account for the broader components of global parenting style that may influence parent-initiated motivational climates, and subsequently the motivational profiles exhibited by developing student athletes. The present study was designed to investigate the relationship among global parenting style, parent-created motivational climate, and student-athlete motivation within the context …

How Student Perceptions Of The Online Learning Environment And Student Motivation Predict Persistence, Completion, And Retention In Developmental Mathematics Courses, Samuel K. Gedeborg

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Online developmental mathematics courses have high dropout rates. The focus of this study is to improve understanding of how students’ perceptions of the online learning environment and student motivation from course design predict student drop out. This understanding will benefit faculty and institutions on student support for online developmental mathematics students.

The study included 330 undergraduate students enrolled in online developmental mathematics courses during the Fall 2018 semester at eight public universities and colleges in the Utah State Higher Education (USHE) system. Participants completed a survey with questions measuring their perceptions of the learning environment. They also completed a survey …

Dramatic Play Affordances Of Outdoor Settings For First And Second Grade Children With And Without Disabilities, Nicholas R. Leschofs

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Unstructured play is crucial for children’s development. Dramatic play is play involving a transformation of objects, actions, or self-identity. During dramatic play, children may operate at more advanced cognitive levels than they do in non-dramatic play, thereby furthering their cognitive, social, and emotional skills. Interactions among children with and without disabilities are valuable opportunities to further a children’s development.

This study compared dramatic play behaviors among first and second grade children with and without disabilities to determine which play settings encouraged children to engage in quality dramatic play. Eighty-nine six-to-eight-year-olds were observed during lunch recess daily on an inclusive playground. …

'Lmshapemaker': Utilizing The 'Rmapshaper' R Package To Modify Shapefiles For Use In Linked Micromap Plots, Braden D. Probst

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In order to effectively create map-based visualizations, some map modifications need to be conducted to ensure the map is readable and interpretable. There are several issues that need to be addressed to achieve this. The boundaries of a country may be overly complex which is particularly true with coastal areas of countries. Regions may be small and not seen in the final plot, as is the case with many capital cities in the world’s countries such as Washington D.C. and the Federal District of Mexico City. In other countries, regions may geographically lie far away from the rest of the …

Improvement Of Ultraviolet Digital Image Correlation (Uv-Dic) At Extreme Temperatures, Thinh Quang Thai

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Extreme temperature has increasingly played an essential role in design and operation of various engineering applications including spacecraft re-entry, hypersonic flight, next-generation nuclear reactors, and hot-fire rocket testing. To protect instruments against the harsh environments, it is preferable to use non-contacting measurements when monitoring the integrity of those mechanical structures. Digital Image Correlation (DIC) is a popular method which uses digital cameras in order to track motion thanks to images acquired before and after deformation. Displacements and strains are plotted over a full-field region which is conducive to identify highly risky zones. At high temperature, objects emit light which interferes …

Nonpoint Source Pollution Control Using A Multi-Objective Optimization Tool For Best Management Practices Selection And Spatial Placement In The Lower Bear River Watershed, Utah, Ali A. Salha

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This dissertation presents a set of approaches to help address water quality problems related to total phosphorus loads in water bodies. Water quality degradation is caused by many nonpoint sources such as agricultural runoff, fertilizers applications, and bank erosion. Three studies present methodologies for water quality protection from degradation in watersheds. The first study demonstrates the application of a watershed simulation tool that can quantify flows in the watershed, the amount of released pollutants and identify the areas contributing to the pollutants’ release in the watershed. The second study presents a simple combination tool that can pair potential management practices …

System-Level Analysis Of Autonomous Uav Landing Sensitivities In Gps-Denied Environments, Terran R. Gerratt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This paper presents an analysis of the navigation accuracy of an fixed-wing Unmanned Aerial Vehicle (UAV) landing on a aircraft carrier. The UAV is equipped with typical sensors used in landing scenarios. Data from the Office of Naval Research is used to accurately capture the behavior of the aircraft carrier. Through simulation, the position and orientation of both the UAV and carrier are estimated. The quality of the UAV’s sensors are varied to determine the sensitivity of these estimates to sensor accuracy. The system’s sensitivity to GPS signals and visual markers on the carrier is also analyzed. These results allow …

An Analysis Of Degree Completion Among Female Students At Utah Valley University: A Demonstration Case For An Individualized Analysis Model In Higher Education, Tara S. Ivie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Higher education institutions are facing low degree completion rates on an epidemic scale. The role of a bachelor degree completion in the well-being and future life of college students is of paramount importance, impacting physical and mental health, financial stability, relationship satisfaction and duration, safety, and community engagement.

Institutions must be critical of and act to address barriers to degree completion. In addition to an intrinsic investment in the success of their students, institutions may be
motivated by institutional improvement, performance-based funding, and the ethical ambition to create an educated society. Understanding when and why students drop and stop out …

The Marshmallow Lab: A Project-Based Approach To Understanding Functional Responses, Melissa Pulley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This paper presents a three-part lesson plan to improve student’s understanding of Holling’s type II functional response model. This model describes the interaction between a predator and how much it is able to consume given a constant number of prey. According to the model, while increased availability of prey allows predators to consume portionately more prey for low values, after some number of prey, predators will only be able to capture a limited number of prey even as the prey continues to increase. This phenomenon is known as saturation. Holling first develop this important ecological theory through his “disc experiment” …

Materials Design For High-Performance Organic Redox Flow Batteries And Electrocatalytic Carbon Dioxide And Nitrogen Reduction, Bo Hu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nowadays, the utilization of renewable energy resources such as solar and wind energy has been realized to be a sustainable and environmentally benign strategy to alleviate the world’s severe dependency on traditional fossil fuels, and thus enables the environmental recovery and sustainable development of the economy. The massive commercialization of solar and wind energy raises the demands for advanced energy storage technologies, among which the redox flow battery has been recognized as a promising solution due to it is low cost, safe, environmentally benign, and easy to be scaled up. All vanadium redox flow battery stands for the most important …

Human-Wildlife Interactions In Bryce Canyon National Park, Chad H. Wildermuth

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Public lands such as National Parks protect some of America’s most spectacular and iconic natural, cultural, and historic landscapes. These lands are managed with a goal of preserving their unique features for the recreational use of the public. Therefore, it is important to understand the effects, if any, that public visitation has on these natural systems. This study investigated human-wildlife interactions in Bryce Canyon National Park (BRCA), Utah in order to better understand factors that lead to human-wildlife conflicts and how the attitudes and perceptions of visitors affect their actions towards wildlife.

Observations of human-wildlife interactions were observed and measured …

The Environmental Impact Of Immigration In The United States, Guizhen Ma

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Population growth increases pressure on the environment. Immigration may be harmful to the environment because it is the major force of population growth in the United States. However, this argument has not been supported by research findings. A few studies on this topic show that locations with higher numbers of immigrants experience better air quality than locations with greater proportions of U.S.-born residents. This research investigated the environmental impact of immigration through three independent studies. First, I tested the relationship between U.S.-born population, foreign-born population, and air quality across all the U.S. continental counties. This study analyzed the air quality …

Model-Based Properties Of Earth's Protective Shield: Relating Ut-Based Dependencies Of The Open/Closed Boundary, Cutoff Latitude, And L-Shell Parameter With Polar Cap Absorption Events, David A. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

High frequency radio continues to be an important communications medium. For example, commercial airlines use high frequency radios as their primary communications mode during transpolar crossings. It has been estimated that over 7000 transpolar flights occur each year. Unfortunately, during geomagnetic storms high frequency communications can become unreliable, especially near Earth's Polar Regions.

Space weather forecasters are burdened with the responsibility of predicting how radio signals might be affected during geomagnetic storms and passing that important information on to commercial airlines, allowing them to adjust flight plans accordingly. Such adjustments can be costly, but are necessary to ensure safety of …

The Effects Of Electrical Biostimulation And Silver Ions On Porcine Fibroblast Cells, Yuanfeng Zhao

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Electrical biostimulation is surrounding us in the environment, and some forms have been applied to medical therapy and clinical treatment. How electrical biostimulation affects cell function and behavior is for the most part largely unknown. There is some evidence that somatic cells might have the ability to transform to stem cells after exposure to electrical biostimulation in the presence of silver ions, which may have applications to wound healing and tissue regeneration. The use of silver has a long history in jewelry and silverware making, food storage, industrial and household production, and photographic industries. The medical application of silver has …

Practical Optical Survey Strategies For Near Geostationary Orbital Debris, Akhter Mahmud Nafi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Uncontrolled space objects, more commonly known as space debris, consist of dead satellites, satellite deployment packages, and lost elements of these systems such as insulation blankets. These uncontrolled objects represent hazards to our nation’s most valuable space assets which include communication satellites, weather satellites, Earth monitoring systems, and military assets. To help mitigate this problem, this research proposes using the known astrodynamics of the near geosynchronous orbit (GEO) along with the known concentration of the uncontrolled GEO objects and observation constraints to design ground-based optical surveys that will detect uncatalogued debris. Furthermore, a scoring metric is developed to evaluate the …

Exploring Park Quality In Urban Setting With Environmental Justice, Alternative Measurements, And Social Interaction, Shuolei Chen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

With rapid urbanization, urban green resources, such as parks have become important assets for quality of life in urban settings. Parks provide urban residents with both physical and psychological health benefits through various mechanisms such as physical activity and social interaction. Quality is an important non-spatial dimension of urban parks and has started to gain attention among researchers. To better understand park quality in an urban setting, additional knowledge should be explored. This dissertation studies the quality of urban parks from three different perspectives: 1) the equal distribution of park quality resources and its relationship to environmental justice issues, 2) …

Family Development And The Marital Relationship As A Developmental Process, J. Scott Crapo

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Despite the commonly held idea that families develop, there is not a theory in common use within the family science field that is developed specifically for the study of the development of the family. Family development theory, developed in the post-World War II era, was used previously, but an inability to be adapted to contemporary families and a lack of scientific utility have kept it from use. Additionally, research on how families develop has not considered how relationships may develop over time.

In this dissertation, I seek to address these holes in the family studies field. I do this over …

Effect Of Thermosonication On Viscosity Of Milk Concentrates And Milk Quality And Shelf Life, Vidita Deshpande

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Thermosonication is the application of soundwaves at temperatures ≥50°C. It can be used to improve functional properties, overall quality, and shelf life of dairy products. Milk is concentrated before being spray dried and currently milk concentration is limited by increased viscosity. Decreasing the viscosity of concentrates prior to spray drying could be economically beneficial to dairy processors. Results from this study showed that that thermosonication significantly reduced the viscosity of concentrates such as reconstituted milk protein concentrate (rMPC) and reconstituted skim milk powder (rSMP). This would allow for spray drying of these concentrates at a higher total solids with a …

Retention Of Women In Computer Science: Why Women Persist In Their Computer Science Majors, Katarina Pantic

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Retention of women through graduation in Computer Science (CS) majors is one of the biggest challenges for CS education. Most research in this area focuses on factors influencing attrition rather than why and how women remain committed. The goal of this research study is to understand retention from the perspective of women who persisted in their CS major. Using the theoretical lens of legitimate peripheral participation in communities of practice, I designed and conducted a study that involved focus groups, interviews, journey maps, and experience sampling methods. I found that retention of women in this study was influenced by four …

Rural Sustainability In The Intermountain West, Mary L. Oliver

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Assessing the sustainability of communities is important for planners and citizens alike. Sustainability plays a central role in forming healthy, successful communities and in planning for responsible growth and development. Most current sustainability evaluations favor urban environments due to their high densities and resulting efficiencies, leaving rural areas labeled “unsustainable” because of their decentralized growth patterns. Characterized as “not urban,” they fall short of urban sustainability benchmarks (Isserman, 2005). The importance of rural sustainability to both small communities and regions leads to the question: how can rural sustainability be characterized and assessed?

This study applies a comparative assessment model to …

Built-In Return-Oriented Programs In Embedded Systems And Deep Learning For Hardware Trojan Detection, Nathanael R. Weidler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Microcontrollers and integrated circuits in general have become ubiquitous in the world today. All aspects of our lives depend on them from driving to work, to calling our friends, to checking our bank account balance. People who would do harm to individuals, corporations and nation states are aware of this and for that reason they seek to find or create and exploit vulnerabilities in integrated circuits. This dissertation contains three papers dealing with these types of vulnerabilities. The first paper talks about a vulnerability that was found on a microcontroller, which is a type of integrated circuit. The final two …

Implementation And Effects Of University College Algebra Growth Mindset Structured Assessments In Large Lectures, Hannah Mae Lewis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Recent scientific evidence shows the incredible potential of the brain to grow and change. Students with a growth mindset view errors and obstacles as opportunities for growth. These students welcome challenges and the opportunity to learn from their mistakes. Although some university instructors are incorporating growth mindset into their lectures, attitudes, and exams in small classes, the traditional exam method used in large lecture undergraduate mathematics classrooms follows a fixed mindset model. The growth mindset structured assessments developed for this study incorporate a testing center portion (matching, short answer, fill in the blank and free response) with structured rework opportunities, …

Konaway Nika Tillicum Native American Youth Academy: Cultural Identity, Self-Esteem, And Academic Optimism, Tamara Barrett

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Through using a Positive Youth Development framework and culturally based education program, Konaway Nikka Tillicum Native American Youth Academy aspires to mentor and prepare Native youth through high school and on to higher education. This collaborative research partnership investigated cultural identity, self-esteem, and academic optimism of Native American youth attending the academy. The results of this program evaluation found that cultural identity, self-esteem, and academic optimism were all closely related to each other as well as that they increased significantly when measured before and after the academy. GPA was found to not be predictive of cultural identity, self-esteem, or academic …

More Than Hatchetmen: Chinese Exclusion And Tong Wars In Portland, Oregon, Brenda M. Horrocks

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the middle of the nineteenth century, vast numbers of Chinese immigrants arrived on the west coast of the United States. Here, they sought a better life for themselves and their families back home. The new arrivals often became targets of violence and discrimination as anti-Chinese sentiment grew in the country. Chinese immigrants protected and provided for themselves by creating a variety of organizations in their communities. One such organization became known as the tong. Many groups organized themselves around family names, regional background, or employment, but tongs accepted anyone who wanted to join. The promise of physical protection, economic …

A Model Explaining Medusahead Invasion And Novel Targeted Grazing Approaches Of Control, Casey N. Spackman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Medusahead (Taeniatherum caput-medusae (L.) Nevski) is currently one of the biggest threats to rangelands and livestock operations in the Western US. High silica concentrations in medusahead contribute to its invasiveness. I developed a model to explain how silica is involved in the invasion process, and attempted to manipulate silica to increase use of the grass by livestock. Experiments were conducted to determine: 1) whether rotational grazing on established forages of improved nutritional quality would provide supplemental nutrients to increase cattle use of medusahead; 2) evaluate intake of and preference for medusahead treated with a glyphosate herbicide at different rates …

Kindergarteners' Conceptions And Representations Of Temperature: An Exploratory Study On How Young Children Perceive Air Temperature, Ryan Francis Cain

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As states, districts, and teachers work to make science classes more about doing the work of science and less about remembering science facts, research is needed to show what doing science looks like. This is especially needed for the youngest students, since much of the current research studies examine the upper part of the K-12 grade range.

Having been an early elementary science teacher, my work in this dissertation and beyond is focused on making the doing of science accessible to young children. One way to do science is to collect and interpret data – to measure something and make …

Evaluation Of A Proprietary Slow-Release Oxytocin Therapy And Return Of The Luteolytic Mechanism In Mares, Brendan Andrew Sarnecky

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Prolonging function of the corpus luteum (CL) is a method of suppressing estrus that maintains secretion of endogenous progesterone to keep mares out of heat naturally. The use of oxytocin to prolong CL function is becoming more popular. In these therapies, upregulation of cyclooxygenase-2 is inhibited, which impairs prostaglandin F2α ( PGF2α) production. Intramuscular (IM) administration of 60 IU of oxytocin once daily from 7 to 14 days after ovulation is currently the most common treatment protocol. Although that protocol is efficacious in ≥70% of treated mares, the need for daily administration is a drawback to its use. A proprietary …