Digital Commons Network^™

Making Space For Student Agency: A Multilayered Exploration Of Agency And Writing In A First‐Grade Classroom, Kara Decoursey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Early literacy learning is crucial for later success in reading and writing. We have a limited understanding of generative writing (i.e., expressing ideas in writing) in first grade and further research is warranted. The socially situated nature of writing justifies a study of student agency during writing.

In this study, data were collected before, during, and after 10 writing sessions in a first-grade classroom. Students took a pre- and post-survey that revealed their self-perceptions of their agency and confidence as literacy learners. The participating teacher was interviewed three times and the teacher’s talk was recorded during all 45- to 60- …

Telehealth Acceptance And Commitment Therapy For Adolescents With Transdiagnostic Health-Related Anxiety: A Randomized Controlled Trial, Julie M. Petersen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Health-related anxiety is a growing issue to understand how to treat, particularly following the COVID-19 pandemic. Some studies show that a specific type of therapy, acceptance and commitment therapy (ACT), may be beneficial for health anxiety in adults, but this has not yet been tested with adolescents. The present study is a randomized, waitlist-controlled trial of ACT delivered via Zoom for adolescents struggling with health-related anxiety. A total of 30 adolescents (ages 12-17), plus one caretaker each (N = 60), living in Utah and currently struggling with health-related anxiety were enrolled. The majority of caretakers and adolescents were White, non- …

Fremont Legacy In Capitol Reef And The Waterpocket Fold: A Radiocarbon Analysis Of The Pectol Collection Coiled Basketry Using Bayesian Modeling, Chelsea Cheney

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Perishable artifacts provide ample opportunity to better understand past human lives. Artifacts constructed from shorter-lived plant materials can make a significant contribution to archaeological research through radiocarbon dating. Analyzing and radiocarbon dating the basketry construction types from the Pectol Collection aids in the development of a more precise prehistoric timeline for the Capitol Reef and Waterpocket Fold (CRWF) area of southeastern Utah. Basketry technology construction is treated as a signal for growing Fremont occupancy throughout the Colorado Plateau and eastern Great Basin, and can the provide prior information used to better organize Bayesianbased age models. From AD 750–1050, a narrow …

Physiological Consequences Of Adrenal Enlargement And Implications For Toxin Resistance In North American Snakes, Megen E. Kepas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The long observed relationship between enlarged adrenal glands and toad-eating in snakes has remained a mystery in physiological ecology and herpetology. It has been predicted that large adrenal glands may be capable of producing higher amounts of key hormones, and that higher plasma hormone levels may lend some behavioral or physiological benefits after a toxic toad has been eaten. I address questions surrounding adrenal enlargement and its potential benefits to toad eaters in four research chapters. In my second chapter, I quantify adrenal hormone output at different embryonic stages in the toad-generalist snake Thamnophis elegans and examine the ability of …

Exploring Versatile Glycosyltransferases From Microorganisms For Natural Product Biosynthesis, Jie Ren

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This dissertation is mainly focused on exploring versatile glycosyltransferases from different microorganisms with the purpose of biosynthesizing bioactive natural product glycosides through microbial fermentation. This engineered biosynthesis approach is environmentally friendly, safe, and efficient compared with plant extraction, chemical synthesis, and enzymatic synthesis. Additionally, we applied these characterized glycosyltransferases as efficient biocatalytic tools to produce novel glycosides to expand the chemical repertoire of nature. These novel compounds showed improved water solubility and some of them exhibited enhanced stability and biological activity, which laid the foundation for the development of new therapeutic agents.

In my dissertation research, I have discovered two …

By Other Means: The Political And Economic Motivations For The Formation Of The Anglo-Japanese Alliance Of 1902 In The United Kingdom, David Cornell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis is an attempt to answer the question of why British political leaders made the Anglo-Japanese Alliance of 1902. To answer this question, I have used primary sources such as government communications, newspaper articles, and articles from scholarly journals. Also, I have consulted the works of past historians to better understand the complex topic of the Anglo-Japanese alliance. This thesis is divided into three chapters. Chapter One explains the events that led up to the creation of the treaty between Britain and Japan and clarifies why this treaty was so unusual for the British Empire in the early 1900s. …

Constrained Route Optimization With Fleet Considerations For Electrified Heavy-Duty Freight Vehicles, Zarin Subah Shamma

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Almost 75% of traffic-related emissions are caused by heavy-duty freight trucks and significantly impact neighborhoods, schools, and communities around shipping and distribution lines. With poor air quality and respiratory health, many children in at-risk and disadvantaged communities experience high rates of asthma, lower attendance in school, and lower concentration. This research creates to improve the impacts of heavy-duty electric freight by improving the route efficiency (in terms of energy, time, or route distance) of EV trucks. Our software and algorithms are tested in a simulation environment using data from several thousand fleet trucks operating in the Salt Lake City area. …

The Derivation Of Sodium Density In The Mesosphere And Lower Thermosphere From The Na Lidar Photon Counting Profiles, Xiaoqi Xi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Derivation of Sodium (Na) number density from the Na lidar observations requires the in situ temperature and wind information because the absorption cross-section of the Na atom is a function of these dynamic parameters. The Na number density above ~ 110 km altitude was difficult to derive with the conventional algorithm, however. The standard output of the Na number density that utilizes the lidar-measured wind and temperature information falls short at ~ 110 km altitude and above due to the relatively large measurement uncertainties in the two critical parameters (low signal-to-noise ratio). Therefore, an innovative algorithm that may drive the …

Decolonizing Memory: Erasure And Resurgence Of Indigenous History In The Intermountain West, Chase Wilson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Decolonizing language, memory, and history is an important step in confronting dominant historical narratives in higher education and the general public. This paper focuses on the settlement of the US Intermountain West – where the violent roots of white settlement have been downplayed in the public historical consciousness through the dominant narrative of "pioneer heritage." Beginning with a study of Ogden, Utah, early histories of the area are reexamined, analyzing the contexts in which Native peoples are mentioned (or not) in order to understand their presence by the turn of the twentieth century. Next, my focus moves on to analysis …

All Good Women Are Mothers: Exploring Gender Binaries In How I Met Your Mother, Jessica Marinho

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Television is thought to be a form of entertainment through its many genres from comedy to drama, however, it is more than a relaxing pastime. Television series construct messages that influence audiences to accept specific behaviors. In this thesis, I analyzed the portrayal of the two main female characters in the popular television series How I Met Your Mother (2005-2009) and I argued how their depiction served to represent childless women as unwomanly and mothers as the ideal woman.

A Cohesive Simulation And Testing Platform For Civil Autonomous Aerial Sensing And Operations, Stockton G. Slack

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Drones (also known as sUAS or small Uncrewed Aerial Systems) are often flown with cameras to take images of an area of land. These images can then be used to create a map by stitching these images together. This map can then be analyzed using scientific principles to learn things about the land and make decisions or take action based on the information.

The scientific application of drones is very advantageous, but flying a drone is inherently dangerous, impacting the safety of the airspace (particularly in the event of a crash), and drones are more dangerous the bigger they are. …

Executive Functioning In Children With Autism And Co-Occurring Neurodevelopmental Disorders: A Systematic Review And Quantitative Analysis, Kandice Benallie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Children with autism and other NDDs experience some level of executive dysfunction including challenges with problem-solving, judgement, working memory, and flexibility. Considering autism and other NDDs including ADHD and ID have overlapping symptoms, it can be difficult to differentially diagnose the disorders. This dissertation sought to explore how co-occurring ADHD and ID impact the EF of autistic children. The first study systematically reviewed the current research examining EF of autistic children with co-occurring ADHD and ID. Findings suggest that co-occurring ADHD and ID result in increased executive dysfunction as compared to children with autism only. The systematic review also revealed …

"There's No Good, It's Just Satisfactory": Perfectionistic Reactivity In Ncaa Student-Athletes, Daniel J. M. Fleming

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Perfectionistic reactivity is a style of responding to adversity that results in physical, psychological, and social components. Individuals who are high in perfectionistic tendencies are likely to experience anxiety, depression, frustration, and anger when perfection is not attained. The present dissertation utilized two complementary studies to examine perfectionistic reactivity in NCAA golf student-athletes. Results suggested that there is no relationship between perfectionism and performance at a hole-to-hole level. However, athletes highlighted that they experienced reactivity in their thoughts, feelings, and behaviors after both positive and negative performances. Student-athletes frequently cited self-compassion in their interviews, suggesting that the promotion of self-compassion …

Cislunar Navigation Techniques And Navigation Performance Optimization, Quinn P. Moon

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nova-C is a lunar lander developed by the private company Intuitive Machines to deliver commercial payloads to the Moon. The IM-1 mission set for 2023 will launch and land the Nova-C near the Moon's south pole. In this research, various navigation techniques are explored to determine the lander's position and velocity during key segments. This process is studied for key mission events including trajectory correction maneuvers (TCMs), lunar orbit insertion (LOI), and descent orbit insertion (DOI). Each mission segment, referred to as an Orbit Determination Segment (OD), is analyzed with three different navigation techniques: Monte Carlo Analysis, Linear Covariance Analysis, …

Precipitation And Soil Properties Determine Long-Term Consequences Of Disturbance And Invasion In Drylands, Tyson Terry

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Disturbance and invasive species have dramatic effects on desert plant communities, often resulting in degradation or shifts to alternative plant communities. Climate and soil properties determine water availability to plants, and have been thought to drive patterns of recovery following disturbance and potential for invasion.

In chapter II we used a combination of natural gas pipelines and satellite imagery to understand how recovery from a uniform disturbance differs across precipitation and soil gradients. We used a recovery ratio (disturbed/undisturbed) of pipeline pixels and their undisturbed nearest neighbor pixel to quantify recovery in a comparable way across precipitation gradients. We found …

An Interval-Valued Random Forests, Paul Gaona Partida

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There is a growing demand for the development of new statistical models and the refinement of established methods to accommodate different data structures. This need arises from the recognition that traditional statistics often assume the value of each observation to be precise, which may not hold true in many real-world scenarios. Factors such as the collection process and technological advancements can introduce imprecision and uncertainty into the data.

For example, consider data collected over a long period of time, where newer measurement tools may offer greater accuracy and provide more information than previous methods. In such cases, it becomes crucial …

Student Veteran Innovation Workshop: Exploring Purpose-Driven Camaraderie, David Brian Kartchner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There 1 million veterans enrolled in higher education in the U.S., and we know relatively little about them. In this work, the term student veteran refers to both former and current military service members. Most of the small body of literature on student veterans is focused on perceived issues found within this population, rather than the strengths they bring to their academic experience. In recent years, academic work has emerged that advocates a shift to looking at the positive traits of the student veteran community. Building on the emerging strength-based perspectives, the concept of purpose-driven camaraderie among student veterans introduces …

Using Head Start Children's Language Development To Predict Social Information Processing Ability, Kendra Newman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As young children grow and develop, gaining social skills and different language abilities is extremely important. As children develop, they also acquire the ability to process social information, which then helps them respond in various social situations. Children should eventually be able to respond to social situations in socially acceptable ways, instead of answering in aggressive or passive ways. This study examined the relations between children’s language development, and social information processing ability. This study included 51 children, from 19 Head Start classrooms. Results showed that at the beginning of the Head Start year children with more language, responded in …

Black–White Disparities In Body Mass Index Trajectories From Adolescence To Adulthood: Assessing The Roles Of Adverse Childhood Experiences And Exposures To Short Sleep Durations, Olusola Akintoye Omisakin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In comparison to Whites and other racial groups, the Black population in the U.S. has experienced one of the highest prevalences of obesity. Research into the role of adverse childhood experiences (ACEs) has increased recently because the effects of ACEs often persist for a significant portion of a person’s lifetime. Furthermore, the reduction in sleep duration in recent decades has sparked worries about public health. This dissertation assesses Black-White disparities in the associations between (1) ACEs and BMI, and (2) short sleep durations and BMI from adolescence to adulthood. Public-use datasets from the National Longitudinal Study of Adolescent to Adult …

Super-Resolution Textured Digital Surface Map (Dsm) Formation By Selecting The Texture From Multiple Perspective Texel Images Taken By A Low-Cost Small Unmanned Aerial Vehicle (Uav), Bikalpa Khatiwada

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Textured Digital Surface Model (TDSM) is a three-dimensional terrain map with texture overlaid on it. Utah State University has developed a texel camera which can capture a 3D image called a texel image. A TDSM can be constructed by combining these multiple texel images, which is much cheaper than the traditional method. The overall goal is to create a TDSM for a larger area that is cheaper and equally accurate as the TDSM created using a high-cost system.

The images obtained from such an inexpensive camera have a lot of errors. To create scientifically accurate TDSM, the error presented in …

Opening The Black Box: Soil Microbial Communities In Field-Based Plant-Soil Feedback Experiments, Julia Kate Aaronson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Plant-soil feedback is a process through which plants modify the properties of their associated soils, affecting their growth. PSF can play a key role in regulating plant growth and communities including altering plant invasion, rarity, and abundance. However, our understanding of the soil organisms that drive these plant growth responses is limited. Most studies treat soils as a ‘black box’ and do little to reveal which specific microbes or microbial communities may be responsible. This chapter examines two recent large PSF field experiments conducted in Minnesota, USA, and Jena, Germany. These experiments revealed that plants altered their soils, changing subsequent …

The Impact Of Formative Assessment Cycles On Students' Attitudes And Achievement In A Large-Enrollment Undergraduate Introductory Statistics Course, Kimberleigh Felix Hadfield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study aimed to investigate the impact of student attitudes toward statistics and student achievement after engaging in large-enrollment introductory statistics course curriculum using continuous formative assessments with feedback and reassessment opportunities. This framework, called Formative Assessment Cycles (FACs) was implanted, providing students formative assessments both in and out of the classroom, with feedback and reassessment. A quasi-experimental, quantitative research design allowed for the investigation of course achievement from pre-FACs to FACs semesters using regression discontinuity methodology. Changes in attitudes from pre- to post-survey in semesters using a curriculum with FACs were analyzed by multilevel regression techniques. Course achievement improved …

A Statewide Evaluation Of Fuel Treatment Effectiveness In Altering Wildfire Outcomes On Public Lands In Utah, Jamela Charmaine Thompson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fuel treatments are land management activities that reduce living and dead flammable materials on the landscape to mitigate undesirable wildfire behavior and effects. Common treatments in the western United States include mechanical methods such as thinning and mastication, prescribed burns, and chemical methods, such as herbicide application. Treatments usually have multiple objectives, including reducing fire intensity, protecting natural and cultural resources, slowing or disrupting a potential future fire’s path, supporting ecosystem health, and reestablishing low to mid severity fire cycles in ecosystems. Although treatments can potentially modify fire behavior and ecological health, they generally cannot prevent fires from igniting, eliminate …

The Mental Health Correlates Of Microaggressions Towards Transgender And Gender Diverse People Of Color: Moderating Effects Of Identity Affirmation And Lgbtq+ Community Connectedness, Kevin Chi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

LGBTQ+ (lesbian, gay, bisexual, transgender, queer, or other meaningful self-labeled sexual and gender identities) individuals experience daily stressors (e.g., discrimination, violence, hypervigilance, negative expectations) that contribute to poorer mental health outcomes (e.g., depression, anxiety, posttraumatic symptoms, substance). For LGBTQ+ people of color (POC), identifying with multiple intersecting marginalized identities creates unique experiences of inequality that expose them to additional stressors, contributing to poorer mental health outcomes. Perceiving microaggressions, daily brief, everyday assaults on marginalized individuals, about one’s identity has been found to have negative mental health effects. TGD (transgender and gender diverse) POC face exposure to multiple types of microaggressions …

Act And Veterans: A Multiple Baseline Study Using Act To Treat Anxiety Disorders In U.S. Military Veterans, Jeremiah E. Fruge

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There are 18 million Americans, roughly 7% of the population, who are Veterans. In contrast with the general population, Veterans have a high likelihood of exposure to psychological harm during their military service. For example, studies indicate Veterans are diagnosed with anxiety disorders in some cases four times higher than in the general population, though few studies examine treatment. Military culture is an additional factor which is important to account for when treating Veterans. For example, within the military an emphasis is placed on values and committed action which may mean this population will benefit more from certain therapies than …

A Scalable, Cost-Oriented Approach For Computing Charge Plans For Electric Bus Fleets, Daniel T. Mortensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Recent attention for reduced carbon emissions has pushed transit authorities to adopt battery electric buses (BEBs). One challenge experienced by BEB users is extended charge times, which create logistical challenges and may force BEBs to charge when energy is more expensive. Furthermore, BEB charging leads to high power demands, which can significantly increase monthly power costs and may push electrical infrastructure beyond its present capacity, requiring expensive upgrades. This work presents a novel method for minimizing the monthly cost of BEB charging while meeting bus route constraints. This method extends previous work by incorporating a more novel cost model, effects …

Fishing Out Nutrients: The Spatiotemporal And Ecological Dynamics Of Fishery-Based Nutrient Extraction, Adrián A. González Ortiz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Marine fisheries are one of the most impactful human activities on the planet. Since the 1950s, marine fisheries have removed billions of metric tons of marine biomass leading to substantial declines in many fish populations. Among their impacts, we have begun to investigate the role of fisheries in disrupting marine nutrient cycles. Specifically, removing biomass can change nutrient cycles by reducing the amount of nutrients stored within animal biomass.

No studies have investigated the large-scale geographical and ecological contexts of nutrient removal by fisheries over a large timescale. For my thesis, we compiled data on fishery-targeted organisms' carbon, nitrogen, and …

A Mechanistic Examination Of Interspecific Competition Between Wild And Domestic Herbivores, Courtney Check

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Large herbivores, such as mule deer and cattle have similar life histories and likely compete for resources. However, quantifying the extent to which these species compete and the specific resources they compete for has proved challenging. My research examines if cattle influence deer abundance and behavior due to competition for forage, competition for shade, and/or by affecting the predation risk of deer. Using a grid of autonomous trail cameras, I was able to determine if cattle abundance influences local deer abundance in relation to specific resources and habitat features. Using GPS data from collared deer, I was also able to …

The Influence Of Secondary Principals' Perceived Trust Of Assistant Principals And Central Office Supervisors On Principal Self-Efficacy For Instructional Leadership, Cody J. Reutzel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Although self-efficacy has been studied widely in education, variables associated with the self-efficacy of principals have received relatively limited attention. The current study investigated the relationship between secondary principals’ perceptions of trust in their assistant principal and central office supervisor and their own self-efficacy for instructional leadership. Surveys were collected from 80 secondary principals. Open-ended questions were utilized to gain greater understanding of the behaviors contributing to principals’ perceptions of trust and feelings of self-efficacy. Data were analyzed using correlation and multiple regression. Quantitative results revealed that no statistically significant relationship is present between trust perceptions in the relationships investigated …

The Time-Dependent Ionospheric Model Using A Tec-Driven Servo: An Investigation Of The Capabilities And Limitations, Jenny Rebecca Whiteley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The ionosphere is a region of the atmosphere with a high density of electrons. These electrons affect the behavior of any electromagnetic wave that passes through the ionosphere. Communication and geolocation systems, such as traditional radio and Global Positioning Systems, depend on emitted electromagnetic signals being picked up by a receiver. The presence of the ionosphere affects the behavior of the signal and the quality of the service. Hence, the interactions between electromagnetic waves and the ionosphere provide a major motivation to understand, research, and successfully model and predict the ionosphere and its physical phenomena. This study focused on determining …