Digital Commons Network^™

The Validation Of The Patient’S Endorsement Of The Biopsychosocial Model Of Chronic Pain (Peb) Scale In Young Adults, Mathias M. Sanyer

All Graduate Theses and Dissertations, Fall 2023 to Present

This research examined a new tool designed to measure how patients view their chronic pain. While healthcare providers increasingly recognize that chronic pain involves biological, psychological, and social factors (a "biopsychosocial approach"), no previous tool existed to assess whether patients share this perspective. This study tested the reliability and effectiveness of the Patient's Endorsement of a Biopsychosocial Model of Chronic Pain (PEB) Scale in young adults with chronic pain. Results confirmed the scale accurately measures a single, consistent concept and correlates with patients' willingness to consider new pain management approaches. Unlike in older adults, the scale didn't predict active maintenance …

Linearized Rigid-Body Dynamics Of Asymmetric Aircraft, Troy A. Abraham

All Graduate Theses and Dissertations, Fall 2023 to Present

Most aircraft are symmetric about their mid-plane, which permits simplifying assumptions when modeling their aerodynamic and mass properties, as well as estimating their dynamic modes. This work considers methods for modeling asymmetric aircraft, including capturing the dynamic mode characteristics that result from their asymmetric properties. While the primary focus of this work is on the dynamic mode properties of these aircraft, a significant portion of the dissertation is dedicated to modeling their aerodynamic, mass, and trimmed flight characteristics. The linearized rigid-body aircraft equations of motion used for dynamic mode estimates are developed to include the effects of asymmetries in both …

Evaluating The Effects Of 3d User Interactions And Virtual Displays On Human Cognition And Perception For Immersive Analytics, Dongyun Han

All Graduate Theses and Dissertations, Fall 2023 to Present

This research investigates how virtual reality (VR) can be utilized effectively for users to explore data. Traditional data analysis typically takes place on flat, two-dimensional computer screens. In contrast, immersive technologies like VR offer a three-dimensional environment where users can engage with data more naturally and intuitively. Such immersive experiences have the potential to improve comprehension, memory, and insight during data analysis tasks. Despite this potential, several challenges remain in making immersive analytics practical and effective. Key questions include which types of 3D interaction techniques are most helpful and how accurately people perceive visual information in immersive environments. To address …

Efficacy And Social Validity Of A Modified Good Behavior Game, Milad Najafichaghabouri

All Graduate Theses and Dissertations, Fall 2023 to Present

Teachers regularly face challenging behavior from students in their classrooms. Research shows that the good behavior game (GBG) is a strategy teachers can use in their classrooms to improve student behavior. However, in practice, very few teachers choose to use this strategy in their classrooms. One reason why teachers may not use this intervention regularly is that they find some parts of the intervention to be difficult to implement in the long-term. The purpose of this study was to modify the procedures of the GBG to reduce implementation effort for teachers and assess if the intervention continues to be effective. …

Empirical Evaluation Of Bayes Error Rate Bounds In Binary Classification, Riley May

All Graduate Theses and Dissertations, Fall 2023 to Present

Classification tasks are fundamental in statistical machine learning. In classification tasks, a general goal is to build or select a model that can correctly classify data with as few errors as possible. However, for a particular dataset, the minimal number of errors achievable is seldom zero since overlap in the data makes errors unavoidable. As a result, it is often difficult for machine learning practitioners and data scientists to know whether classification errors can be reduced through further refinement. A potential solution to this lies in the Bayes error rate (BER). The BER is the lowest error rate achievable for …

Improving Seasonal Precipitation Forecasts In The Western United States Through Statistical Downscaling, Bradley Vernon

All Graduate Theses and Dissertations, Fall 2023 to Present

Seasonal precipitation forecasts are essential tools for water management, especially in drought-prone areas like the Western United States. While global forecasting systems can predict precipitation months to years in advance, these forecasts are typically produced at a coarse spatial resolution due to high computational costs – especially when multiple forecast iterations, or ensemble members, are included. This coarse resolution limits their ability to capture localized weather features, such as those shaped by the complex terrain of the Intermountain West. Here, analog statistical downscaling is demonstrated as an effective approach to enhance the spatial resolution of operational seasonal forecasts provided by …

Optimization Of The Root Zone In Controlled Environment Agriculture, Brendan Fatzinger

All Graduate Theses and Dissertations, Fall 2023 to Present

Controlled environment agriculture (CEA) helps grow plants in spaces where resources like water and nutrients are limited, such as deserts or spacecraft. Effective management of water in the root zone, the area where plant roots grow, is vital to keeping plants healthy, especially in closed-loop systems where water cannot be wasted, as will be necessary for long-duration space missions.

An improved automated watering system designed for use in space-like environments was developed over several trials. Early designs using suction to draw water through tubes faced problems with uneven watering and roots blocking the tubes. Switching to a system that pushed …

"I Was In The Story": The Relationship Of Oral Storytelling With Student Hope, Narrative Transportation, And Religious Beliefs, Jacob B. Earnest

All Graduate Theses and Dissertations, Fall 2023 to Present

This study investigated the potential relationships with oral storytelling and student narrative transportation levels, student hope levels, and student religious beliefs. The Children’s Hope Scale and the Transportation Scale-Short Form were to assess hope levels and narrative transportation levels in participants. Results suggest that oral storytelling may have a strong relationship with narrative transportation. A relationship with oral storytelling and student religious beliefs is also suggested. Oral storytelling and student hope levels, and the possible connection between student narrative transportation levels and student hope levels, needs further research.

An Embodied Social Demography For Trans And Nonbinary Workers, Jesse Ezra Shircliff

All Graduate Theses and Dissertations, Fall 2023 to Present

Recently, the separation of “sex” and “gender” has seen intense debate in public discourse, stemming from skepticism about the social sciences and the measurement and study of gender specifically. Meanwhile, the United States population is becoming more gender diverse, with roughly 1 in 200 people now identifying as trans gender or gender nonbinary (that is, as a gender that is different from that person’s sex assigned-at-birth or outside of the sex-gender binary). This growing population experiences numerous disadvantages across social life, including obstacles in one particularly important aspect of the American Dream: the right to have and hold a job. …

From Rifles To Running Shoes: How Outdoor Recreation Trends Are Reshaping Conservation Efforts, Lane James Arthur

All Graduate Theses and Dissertations, Fall 2023 to Present

Parks and protected areas (PPAs) serve a dual purpose: they conserve wildlife and natural habitats while providing spaces for people to enjoy outdoor recreation. However, balancing conservation with recreation can be challenging, especially as outdoor activities continue to grow and evolve. In Utah, Wildlife Management Areas (WMAs) are set aside to protect important wildlife habitats and provide opportunities for hunting and fishing. Recently, these areas have seen an increase in activities such as mountain biking, trail running, and dog walking, some of which take place in areas which prohibit recreational activity in effort to protect wildlife. These shifts in recreation …

Intra-Stand Movement Of Balsam Woolly Adelgid (Adelges Piceae) In The Intermountain West, Michael S. Wayman

All Graduate Theses and Dissertations, Fall 2023 to Present

Balsam woolly adelgid (BWA, Adelges piceae (Ratz.)) is an invasive insect of true firs (Abies spp.). BWA has spread from initial introductions on the west coast of North America in the 1920s through the Intermountain West and has recently invaded Utah. White fir (A. concolor) and subalpine fir (A. lasiocarpa) are the two main species of concern in this region; however, subalpine fir has been found to be more susceptible to attack and subsequent damage. While long-range dispersal mechanisms and patterns are of interest for spread across regions and for predicting new infestations, very little …

Evaluating Maternal Polar Bear Denning Habitat Along The Arctic Coastal Plain And Assessing The Potential For Noise Disturbance In Polar Bear Dens, Ethan Ducharme

All Graduate Theses and Dissertations, Fall 2023 to Present

Polar bears (Ursus Maritimus) in northern Alaska are increasingly choosing land instead of sea ice to build their maternity dens. As sea ice continues to decline due to climate change, this shift makes it more important than ever to identify and protect the areas where polar bears dig dens to give birth and raise their cubs. In the first part of my research, I used new satellite-based elevation data to map potential polar bear denning habitat across a large section of Alaska’s Arctic Coastal Plain. This technology allowed me to identify the types of sloped terrain where drifting …

Veils Of Oppression: An Exploration Of Paul Fitzsimmons Eve And His Impact On Enslaved Black Women's Lives, Zoe'swanna K. Mcgee

All Graduate Theses and Dissertations, Fall 2023 to Present

This thesis contributes to the ongoing study of gender, race, and medicine in the United States, focusing on Dr. Paul Fitzsimmons Eve and his practices. By examining the experiences of enslaved black women subjected to his surgical procedures and experiments, medical racism, harm, and exploitation become visible.

Evaluation Of Novel Biomarkers As Predictive Measures Of Mastitis – Establishing A Relationship With Health Status, Lamb Performance, And Determination Of Prevalence Of Mastitis In Ewes Under Intensive Management, Courtney Berghoff

All Graduate Theses and Dissertations, Fall 2023 to Present

Inflammation of the mammary gland, also known as mastitis, is a prevalent and financially impactful disease in sheep production. The objectives of this survey were to 1) evaluate current testing methods: somatic cell count (SCC), California Mastitis Test (CMT), and bacterial culture, as well as novel biomarkers: lamb performance, milk composition, and udder conformation, for their impact on ewes categorized as clinically healthy or unhealthy under intensive management systems at 15 days in milk (DIM) and 30 DIM, and 2) identify biological markers that are correlated with clinical and subclinical mastitis. Milk, blood, and fecal samples, a visual and physical …

The Effect Of Voter Education On Behaviors In Ranked Choice Voting, Ethan G. Olsen

All Graduate Theses and Dissertations, Fall 2023 to Present

The appeal of ranked choice voting has led to its recent meteoric rise throughout America, leading to adoption in a number of cities and a handful of states, but some critics and political scientists worry about its higher difficulty potentially leading to more errors and undesirable behavior. Utilizing an experiment, I find that a short voter education video is all that is required to reduce rates of errors and ideologically inconsistent behavior, while finding null results for undervoting, possibly due to its low occurrence in the sample.

As ranked choice voting’s adoption is considered in each election cycle for jurisdictions …

Out Of Core And Adaptive Image Blending Approach For Large Scale Image Mosaics, Marcus Quincy

All Graduate Theses and Dissertations, Fall 2023 to Present

When creating large stitched images, like those used in maps made from aerial photos, it’s important to make sure the seams between individual pictures aren’t visible. This process, known as color blending, helps smooth out differences in lighting or weather across the images. But blending very large images, such as those made from many high-resolution aerial photos, can require huge amounts of memory, making it hard to do on a typical computer.

In this work, we developed a method that breaks the problem into smaller pieces, so only a small part of the image needs to be worked on at …

Womanhood, Survival, And The American Revolution: The Correspondence Between John And Abigail Adams And Henry And Lucy Knox, Kristin Jaques

All Graduate Theses and Dissertations, Fall 2023 to Present

The letters of Lucy and Henry Knox and Abigail and John Adams sent between 1775 and 1782 show how women stepped out of their expected gendered roles with thoughts of survival, not because they wanted to challenge the patriarchal society prevalent in the American colonies during the American Revolution.

Factors Influencing Cognitive Load: Exploring Affective Elements, Motivational Constructs, And Regulatory Strategies In Learning, Rebecca B. Brockbank

All Graduate Theses and Dissertations, Fall 2023 to Present

There are three separate research papers within this dissertation, each looking at specific elements of learning. The process of learning is a complex phenomenon that includes not just cognitive aspects, but also emotional and motivational aspects. During learning there is an input of information into our cognitive system (i.e., minds). When too much information is given or the information is not presented effectively, this can overload our cognitive system and negatively impact our learning. Understanding how to learn within the parameters of our cognitive system is important. However, learning is more complex than just the simple input and output of …

Watermelon Production In Utah: Exploring Biostimulants To Reduce Water And Fertilizer Use, Evan A. Christensen

All Graduate Theses and Dissertations, Fall 2023 to Present

The impacts of climate change and drought threaten water supplies that are important for watermelon production. Additionally, rising fertilizer costs and off-site effects from improper fertilizer applications cause concerns for the sustainability of watermelon production. Biostimulant products have shown promise in helping plants maintain production under reduced irrigation conditions and may offset fertilizer addition. Biostimulants are any microorganism or substance that is applied to a plant with the goal to increase nutrition efficiency, crop quality traits, or tolerance to environmental stresses. Most of the production in the U.S. uses seedless watermelon which are typically grown in greenhouses and transplanted due …

Twisted Equivariant Matrix Factorizations, Jan-Luca Spellmann

All Graduate Theses and Dissertations, Fall 2023 to Present

We introduce and study categories of twisted equivariant matrix factorizations MF^α_G(R, w), which are categories of matrix factorizations of a potential w over the local ring R = C[x₁, . . . , x_n] together with an action by a finite group G that is twisted via a 2-cocycle α. These categories provide rich examples of Z/2Z-differentially graded categories in the context of non-commutative geometry and come up naturally in the study of boundary conditions of 3d Rozansky–Witten theories. We prove that under certain assumptions on (R, w …

Role Of Quartz Grain Size And Saturation On Fault Strength And Frictional Healing, Sapana Regmi

All Graduate Theses and Dissertations, Fall 2023 to Present

Rocks near the Earth's surface (less than 5 kilometers deep) often break and grind against one another to create crushed rock materials known as fault gouge. These fault gouges are filled with fragmented particles and broken rocks, which vary in grain size over time and space due to repeated earthquakes. This variation in grain size distribution along fault gouge can affect the strength of the fault, how it slips during an earthquake and how it 'heals' or recovers strength between earthquakes. Further, fault gouges often contain water from underground sources, which can influence how they slip. Previous studies have examined …

Breaking Up In The Digital Age: Examining The Relational Dissolution Model On Instagram, Alana Haupert

All Graduate Theses and Dissertations, Fall 2023 to Present

Breakups can be an emotional time as individuals experience breakup distress and begin to explore the options and potential actions that are associated with relational dissolution on social media. This study seeks to explore how certain online behaviors, as they relate to stages of relational dissolution, affect breakup distress, relational uncertainty, social media engagement, and overall attitudes towards singlehood. Findings suggest that social media engagement plays a key role in exploring the phases of relational dissolution. Higher social media intensity linked breakup distress and behaviors of the social phase, or when individuals share information about a potential breakup. Grave-dressing behaviors …

Supplementing Tannins To Increase Performance And Reduce Methane Emissions In Cows Grazing On Western Grasslands, Horacio Pedro Blanchard

All Graduate Theses and Dissertations, Fall 2023 to Present

Cattle grazing on U.S. rangelands often rely on a limited diet made up mostly of grasses. As the seasons change from spring to fall, the nutritional quality of these grasses declines, leading to less efficient digestion and higher production of methane—a potent greenhouse gas. In addition, most grass-based pastures lack beneficial plant compounds, such as tannins.

This study explored whether adding natural tannins—specifically, condensed and hydrolyzable tannins from quebracho and chestnut trees—to the diet of grazing cattle could improve how the use efficiency of nutrients and reducing methane emissions from cattle. Over two years, 24 cow-calf pairs grazed in small …

Balancing Native Wetland Types And Ecosystem Function Conservation In The Face Of An Aggressive Plant Invader, Aubin A. Douglas

All Graduate Theses and Dissertations, Fall 2023 to Present

Wetlands provide a multitude of ecosystem services that are important to people including water filtration, flood attenuation, carbon sequestration, and recreational opportunities such as birding and hunting. Wetland plants support these services by performing important underlying ecological processes called ecosystem functions which include removing heavy metals from water and providing habitat for migratory birds. The provisioning of these functions varies through space and time, by vegetation type, and via impacts from other factors like climate and management actions. Wetland managers are responsible for maintaining these functions and services within their management complexes to align with their agency’s mandates. Unfortunately, managers …

Modeling For Functional Traits In Bluebunch Wheatgrass Using Unmanned Aerial Vehicle (Uav) High-Throughput Phenotyping, Brittany L. Johnson

All Graduate Theses and Dissertations, Fall 2023 to Present

Changing climates and shifts in community composition in the Intermountain West threaten sagebrush-steppe ecosystems, impacting both plants and animals. Restoring native grasses like bluebunch wheatgrass (Pseudoroegneria spicata; BBWG) can help ecosystems resist invasive species and recover from stress and disturbances. As a native cool-season grass, BBWG is widely used in rangeland restoration for the western U.S. Breeding programs for restoration plant materials, such as seeds for ecological projects, often require years or decades of field testing while facing staffing constraints. High- throughput phenotyping (HTP), which rapidly measures observable plant traits, offers a faster solution using drones to capture time-series …

The Effects Of National Elite Signaling On Ranked Choice Voting In Utah, Mathew Woodman

All Graduate Reports and Creative Projects, Fall 2023 to Present

Ranked-Choice Voting (RCV) is a voting method used in few cities in the United States. There has recently been an increase in interest in adoption of the voting method in other cities using pilot programs, much like the one introduced in Utah. Ranked-Choice Voting has become a topic of contention with strong disapproval coming from opponents of the voting system. The questions are why there is disdain for Ranked-Choice Voting, and why such disdain seems to exist more heavily in Republican camps. Public opinion polling from “likely and confirmed Utah voters” in Salt Lake, Utah, and Grand Counties, conducted by …

Alevi-Bektashi Ballads: Malady, Melody And Remedy, Mustafa Cingoz

All Graduate Theses and Dissertations, Fall 2023 to Present

This research focuses on how ballads play a central role in the cultural and spiritual life of the Alevi-Bektashi community in Türkiye. These ballads, performed by folk poets known as aşık (minstrel) with the stringed instrument bağlama are the inseparable elements of their daily life and sacred rituals. As rooted in the path of Ali, the fourth Caliph of Islam, and the teachings of 13th-century Sufi saint Haji Bektash Veli, Alevi-Bektashi ballads express shared emotions, struggles, and hopes. Therefore, my point of view argues that these ballads do more than preserve the Anatolian ballad tradition. They create a sense of …

The Recreation Opportunity Spectrum In Practice: A Classification Of Visitors And Sites In The Roaring Fork Valley, Colorado, Usa, Jessica Bruck

All Graduate Theses and Dissertations, Fall 2023 to Present

Researchers and public land managers continue to investigate what motivates visitors to recreate and how to best sustain environmental conditions to provide for these recreation demands and support conservation goals. Much recreation research has successfully identified visitor motivations at a single recreation area (spatial scale), but few studies broadly assess the manifestation of visitor motivations at an array of recreation areas that present unique recreation experience opportunities. Additionally, it is known that there are a diversity of visitor motivations and preferences, which presents a complex challenge to public land managers who must ensure that a diversity of recreation opportunities are …

Optimizing Delphinium And Larkspur Through Timing And Protective Cultivation Methods For Cut Flower Production, Nicholas Kirwan Volesky

All Graduate Theses and Dissertations, Fall 2023 to Present

Cut flowers have become an increasingly important specialty crop for small farms nationwide, and particularly in Utah, where decreasing agricultural land has heightened the need for profitable cropping options. However, production is challenged by Utah’s high-elevation climate, which presents unique constraints not addressed by current recommendations. Cool-season crops, like delphinium (Delphinium spp.) and larkspur (Consolida ajacis L.), are underproduced yet highly marketable, generating strong interest among growers throughout the state. Developing region-specific production guidelines is essential to help optimize yields, extend harvest windows, and meet local demand. This research evaluated spring planting dates in high tunnel and field …

[M]Otherhood: Navigating Work-Family Constraints And Strategies In Pink-Collar Jobs, Madison Brunell

All Graduate Theses and Dissertations, Fall 2023 to Present

Working mothers continue to confront cultural norms and workplace practices that frame paid labor as incompatible with caregiving. In the workplace, these norms often result in motherhood bias and discrimination due to the incompatibility between norms of the ‘ideal worker’ and the ‘ideal mother’ (Acker 2006; Williams, Blair-Loy and Berdahl 2013). This tension is especially acute in pink-collar jobs, women-dominated occupations in service and care sectors, which are often mischaracterized as mother- friendly despite offering limited flexibility, low pay, and minimal structural support (Sartor, Lange, and Tröster 2023; Deming 2022; Ervin et al. 2022). While prior research has explored the …