Digital Commons Network^™

Conservation And Management Of Greater Sage-Grouse In Strawberry Valley: Quantifying Influences On A Traditional Capture Method And Long-Term Trends In Clutch Size, Janae Radke

Theses and Dissertations

The greater sage-grouse (Centrocercus urophasianus) is a species of conservation concern that has undergone serious declines in the last century. The Strawberry Valley sage grouse population in Utah underwent such a decline from an estimated 3,500 sage grouse in the 1930s to 150 sage grouse in the early 2000s. This decline initiated a long-term conservation and monitoring project in Strawberry Valley with the goal of preserving the sage grouse population. As part of this ongoing conservation project, we investigated factors that impact the success of capturing sage grouse using the night-lighting method (Chapter 1). We found that capture success is …

Trip - Transformer Interatomic Potential Predicts Realistic Energy Surface Using Physical Bias, Bryce Eric Hedelius

Theses and Dissertations

Accurate interatomic energies and forces enable high-quality molecular dynamics simulations, torsion scans, potential energy surface mapping, and geometry optimization. Machine learning algorithms have enabled rapid estimates of energies and forces with high accuracy. Further development of machine learning algorithms holds promise for producing general potentials that support dozens of atomic species. I present my own Transformer Interatomic Potential (TrIP): a chemically sound potential based on the SE(3)-Transformer. TrIP's species-agnostic architecture--using continuous atomic representation and homogenous graph convolutions--encourages parameter sharing between atomic species for more general representations of chemical environments, keeps a reasonable number of parameters, serves as a form of …

Improving Hpv Vaccination Rates In A Pediatric Group: A Pilot Project, Jason Warhurst, Karlen Beth Luthy, Michael S. Robinson

Student Works

Background: Human Papillomavirus (HPV) is the most common sexually transmitted infection in the United States. HPV vaccines are both safe and effective, providing long-lasting protection. Some organizations recommend the HPV vaccine should be initiated at age 9 years.

Specific Aims: The purpose of this pilot project was to improve HPV vaccination rates by 10% in patients ages 9-10 years at a large pediatric group. This purpose was accomplished through pediatric healthcare provider (HCP) education.

Methods: A quantitative and open-response questionnaire was used to determine HCPs’ confidence levels regarding the HPV vaccine at baseline. HCPs attended one evidence-based …

Memories In Stone: Family History Research In The Western Pyrenees, Paul Woodbury

The Thetean: A Student Journal for Scholarly Historical Writing

I stood in a small grove of trees, which afforded a respite from the misty rain. Streams of fog crept along the valley walls and covered the village of Aydius in foamy white waves. I admired the engravings decorating the lchante household- the heartfelt expression of a peasant farmer and shepherd. I would never have imagined that my internship and study abroad would culminate here, reading my ancestor's memoirs chiseled in stone. Yet here I was, thousands of miles from home, alone in a foreign country, away from the pristine comfort of the regional archives, reading Joseph lchante's legacy carved …

Sagefire: An Agent-Based Model Of Heat Dynamics In Sagebrush Steppe Ecosystems During A Fire Event, Samuel Joseph Knuth

Theses and Dissertations

Context: The Great Basin in the western US features arid to semi-arid climates and sagebrush steppe ecosystems. Increased fire frequency can negatively impact these ecosystems by promoting invasive species. Agent-based modeling is a valuable tool to study fire dynamics in sagebrush steppe ecosystems, offering insights in management strategies and ecosystem resilience. Objectives: We developed SageFire, an agent-based model, to simulate heat dynamics influenced by shrub cover during fires in the Great Basin. Our objectives were to accurately classify ground cover types, incorporate classified imagery into a simulation model, and accurately visualize fire intensity based on the spatial arrangement of the …

Spatial Distribution Of Soil Nutrients And Properties As A Function Of Vegetation Distribution, Fire, And Rodent Activity, Nathan O. Jones

Theses and Dissertations

Fires are becoming larger and more frequent in the deserts of North America, driven largely by the expansion of invasive annual grasses. Rodent consumers can curb invasive grass expansion through plant herbivory, but the top-down effects of this pressure on soil resources are understudied. In shrub dominated deserts, islands of fertility under shrub canopies are surrounded by nutrient poor interspace soils that dictate patterns of vegetative growth. Little is known of how top-down controls from rodents and fire may interact with fertile island topography. These studies explore the effects of fire, rodent activity, and fertile island topography on plant available …

Andromedus: A Novel, Ariel Renae Hochstrasser

Theses and Dissertations

Andromedus "Midas" Hellebore is a half-fae necromancer living in Portland, Oregon. When he was a child, he grew up in a brothel on a fae territory near the Pacific coast on an island called Duckwell. The matron of said brothel tried to sell him to be a blood pet for a man named Mr. White, both to be a sex slave and to consistently produce fae blood, which consumed by humans could give them the magic fae folk are born with. However, a few of the escorts at the brothel - including Orla, the one who chose to raise him …

E Afua Mai Mauga Manuia O Nu'u: Conservation From Mountains To Reefs In Tropical Pacific Islands, Tavailau T. Segi

Theses and Dissertations

Soil erosion is the main exacerbating threat to climate change impacts in tropical Pacific islands, particularly to steep and mountainous volcanic islands. The morphological features (steep and mountainous), short distance from ridge to reef, frequent storm events, extended raining season, and accelerating developments from growing populations pose serious threats to terrestrial and marine resources. Perhaps the most threatening part is the high dependency of their human populations on the land and ocean for food supplies, supporting national economies, and sustaining culture and human well-being. Locals, governments, and non-governmental organization projects are underway to improve protection and management of natural resources …

Development Of A Molten Salt Reactor Design And Design Framework For Overall Reactor Performance Prediction And Optimization, Andrew William Larsen

Theses and Dissertations

This dissertation introduces a novel approach to nuclear reactor design, emphasizing molten salt reactors (MSRs) to address the global need for safer, more efficient, and sustainable energy sources. It confronts the inherent challenges of nuclear fission reactors--proliferation risks, cost efficiency, waste management, and passive accident prevention--by developing an innovative MSR model and a machine learning (ML)-based optimization framework. The molten salt microreactor (MSMR), devised by researchers at Brigham Young University, utilizes thermally conductive plates for efficient heat dissipation during operational anomalies, ensuring safety within operational limits. This design was rigorously tested using STARCCM+ for fluid dynamics modeling and RELAP5-3D for …

The Role Of Caloric Intake On Achilles Tendon Health In Pre-Professional Ballet Dancers, Annie G. Smedley

Theses and Dissertations

Background: Achilles tendinopathy is a common and debilitating condition among female ballet dancers due to the large repetitive loading forces placed on their Achilles tendons during rehearsals and performances. Tendon health problems in females are exacerbated by a lack of understanding about how energy availability influences tendons. Ballet dancers, as aesthetic athletes, are vulnerable to low energy availability and can enter a spectrum disorder, relative energy deficiency in sport, that consists of low energy availability (with or without disordered eating), menstrual cycle dysfunction, and low bone mineral density (BMD). Aims: 1) To investigate the relationship between insufficient caloric intake and …

"The First Fruits Of A Woman's Wit": Reclaiming The Childbirth Metaphor In Aemilia Lanyer's Salve Deus Rex Judaeorum, Carolyn Mae Shakespear

Theses and Dissertations

The childbirth metaphor adopts imagery from female bodies carrying and delivering children to describe the effort and relationship of a poet to his/her poem. This was a commonly used trope in the renaissance, particularly by male authors. This thesis examines the way early modern woman poet, Aemilia Lanyer uses the childbirth metaphor in her poem, Salve Deus Rex Judaeorum. Lanyer ultimately considers not only the physical realities of childbirth in her use of the metaphor, but also the emotional, social, and theological consequences. By doing so, I argue that Lanyer reclaims the metaphor from her male contemporaries in order to …

Acceptable Things, Janaya Lucile Tanner

Theses and Dissertations

My thesis is a collection of short stories which explore motherhood through the lens of science fiction. The stories take place in various settings and landscapes in imagined future for humanity and are set within the frame of a sentient space station speaking to her daughter. The stories explore ideas of pregnancy, access to maternal care, and relationships between mothers and daughters. Environmental concerns and the link between maternal bodies and natural landscapes are prominent throughout the collection. Ultimately, these stories ask and seek to explore the question of what motherhood can mean, how our relationships to our parents and …

Transferable User-Friendly Machine Learning For Normal Boiling Point Prediction, Frank Tafadzwa Mtetwa

Theses and Dissertations

The estimation of thermophysical properties of chemical compounds holds considerable importance across a multitude of fields, ranging from material science to process design. Among these properties, the normal boiling point (NBP) stands out as a pivotal parameter in scientific and engineering contexts, as it elucidates the state of a substance under standard conditions commonly encountered in nature. Additionally, NBP is extensively documented in various reference materials and databases. Given its paramount importance and widespread availability, prediction methodologies for other properties such as critical temperature, liquid density, vapor pressure, surface tension, liquid viscosity, liquid thermal conductivity, and flash point often rely …

Catchment Water Storage Mediates River Flow Sensitivity To Climate Change, Brian Charles Brown

Theses and Dissertations

As patterns of precipitation and evapotranspiration change, human water security and aquatic ecosystem health depend on understanding how catchment characteristics interact with climate to control river flow. We tested factors that mediate sensitivity of river flow to fluctuations in climate using a set of 1,148 data-rich, climate diverse catchments in various parts of the world from 2001-2020. We extrapolated these results to an additional 2,012 catchments with sparser data. Using features such as vegetation, land use, hydrology, and local climate, we found that catchments with high aridity to runoff ratios (Fuh's parameter) had 380% higher runoff sensitivity to fluctuations in …

A Study Of Art Education Strategies For Remote Learning During The Pandemic, Stephanie Cook

Theses and Dissertations

In the wake of COVID-19, educators had to adjust their curriculum and pedagogies to create an environment of learning while their students couldn't come into the classroom. As teachers and students alike adapted to this new distance learning, they encountered many obstacles which made it difficult to teach and to learn compared to what they were used to in a traditional in-person classroom setting. This thesis document compiles my research about the advantages and disadvantages of remote learning before, during, and post-pandemic. The research component of this project consists of the commentary of four art educators who share what they …

Perceptions Of Violent Content And Their Relationships On Aggressive Behavior: The Effects Of Implicit Beliefs On Aggression In Relation To Video Content, Logan Mccombs

Theses and Dissertations

Previous research shows that consuming violent media can lead to increased aggression in thoughts, feelings, and behaviors. Several other factors also contribute to such behaviors but have not been thoroughly studied including implicit beliefs about aggression in relation to media content. This two-part study consists of (1) an exploratory iterated principal-factor method to create an implicit belief measure about consuming violent media in conjunction with correlational analyses and (2) between subjects hierarchical linear regression models to determine what effects implicit beliefs have on subsequent aggression after participants view either a violent of nonviolent video, while controlling for violent media consumption …

The Influence Of Religious And Political Discrepancies On Parent-Adolescent Social Cohesion, Emily De Schweinitz Taylor

Theses and Dissertations

American youth are leaving organized religion at historical levels. Given that religious and political similarity (consensual solidarity) tends to strengthen affectual solidarity (emotional connection) in parent-adolescent dyads, decreasing adolescent religiousness and increasing political disagreements may threaten family social cohesion. However, during adolescence, youth empathy skills tend to increase and adolescents’ conflict with their parents tends to eventually subside. Based on principles outlined in intergenerational family solidarity theory, I hypothesized that adolescent empathy skills and authoritative parenting style would buffer the negative relational effects of religious and political discrepancies within the parent-adolescent relationship. I used Waves 2-4 (referred to as Times …

Spatiotemporal Variation In Regeneration And Herbivory In Stable And Seral Aspen Stands, Sterling Burgess Kerr

Theses and Dissertations

Aspen forests are strongly influenced by disturbances like fire and ungulate herbivory, which can impact plant community composition and succession. Human activities alter these disturbances, affecting their timing, extent, and severity. Chapter 1 explores the effects of large-scale prescribed fire and mechanical thinning treatments on aspen regeneration and vulnerability to ungulate herbivory. Results show that while aspen regeneration was hindered by chronic ungulate herbivory in untreated areas, mechanical thinning and prescribed fire stimulated aspen regeneration. However, mechanically thinned plots were vulnerable to ungulate herbivory, with only prescribed fire having reduced browsing. Chapter 2 investigates herbivory patterns and recruitment across stable …

Associations Between Young Children's Problematic Media Use And Physiological Regulation -- Does Temperament Act As A Mediator?, Noah Alexander Chojnacki

Theses and Dissertations

Given the ubiquity of media use, especially among young children, the current study examines the impact of problematic media use (PMU) on children's (N = 418, M age = 53.62 months, SD = 3.38 months, M and SD are taken from the full sample of 418 children) physiological functioning. With previous studies reporting relations between media use, temperament, and physiological regulation, it was hypothesized that children with greater levels of PMU would have lower levels of baseline respiratory sinus arrhythmia (RSA; a measure of physiological regulatory capacity). It is further hypothesized that, higher levels of negative affect, and lower levels …

Association Between Handgrip Strength And Muscle Mass In Children 6 To 10 Years Old, Samantha Velázquez Villalobos

Theses and Dissertations

Measuring body composition in children is important due to the rise of childhood obesity and changes that occur during pre-pubertal years. Sarcopenia, defined as a muscle mass loss and function, is increasingly recognized in pediatric populations, particularly in childhood obesity. Therefore, it is necessary to have measurements which not only provide an overall picture of body composition, but that can distinguish between muscle and fat mass. Methods of body composition such as Dual Energy X-ray Absorptiometry (DEXA) provide accurate assessments of body composition, but they are resource-intensive and impractical for routine monitoring in clinical or community settings. To address this, …

Acoustothermal Transfection For Cell Therapy, Xiufang Liu, Ning Rong, Zhenhua Tian, Joseph Rich, Lili Niu, Pengqi Li, Laixin Huang, Yandai Dong, Wei Zhou, Pengfei Zhang, Yizhao Chen, Congzhi Wang, Long Meng, Tony Jun Huang, Hairong Zheng

Faculty Publications

Transfected stem cells and T cells are promising in personalized cell therapy and immunotherapy against various diseases. However, existing transfection techniques face a fundamental trade-off between transfection efficiency and cell viability; achieving both simultaneously remains a substantial challenge. This study presents an acoustothermal transfection method that leverages acoustic and thermal effects on cells to enhance the permeability of both the cell membrane and nuclear envelope to achieve safe, efficient, and high-throughput transfection of primary T cells and stem cells. With this method, two types of plasmids were simultaneously delivered into the nuclei of mesenchymal stem cells (MSCs) with efficiencies of …

Characterization Of Cellular Metabolism Regulation By The Transcription Factor Centromere Binding Factor 1 (Cbf1), Spencer Ellsworth

Theses and Dissertations

Centromere binding factor 1 (Cbf1) is a transcription factor that controls the transcription of many genes involved in cellular respiration and lipid biogenesis and, as such, has been associated with hypolipidemia in humans. It is a known substrate for PAS kinase, which phosphorylates Cbf1 and alters its activity. Our hypothesis is that this phosphorylation affects the genes it regulates and the DNA motifs it binds to, perhaps due to different transcription complexes being formed. In this study, we conduct a chromatin immunoprecipitation in Saccharomyces cerevisiae to determine what genes and DNA motifs Cbf1 binds to in its wild type versus …

The Generation Of Terahertz Light And Its Applications In The Study Of Vibrational Motion, Aldair Alejandro

Theses and Dissertations

Terahertz (THz) spectroscopy is a powerful tool that uses ultrashort pulses of light to study the properties of materials on picosecond time scales. THz light can be generated through a variety of methods. In our lab, we generate THz through the process of optical rectification in nonlinear optical (NLO) organic crystals. THz light can be used to study several phenomena in materials, such as spin precession, electron acceleration, vibrational and rotational motion. The work presented in this dissertation is divided into two parts: (1) the generation of THz light and (2) applications of THz light. The first portion of this …

Trauma-Informed Mindfulness-Based Stress Reduction To Increase Family Quality Of Life For Mothers Of Children With Autism: A Pilot Study, Carol May Vaughn

Theses and Dissertations

Mothers of children with autism have a higher rate of stress than mothers of neurotypical children and mothers of children with other disabilities. This impacts their family quality of life. This study aimed to show that by teaching mothers trauma-informed mindfulness-based stress reduction techniques they were able to switch their perspectives and feel that they had increased the relationships with their child with autism and increased the rating they give their family quality of life. The participants were recruited using word of mouth and through distribution of posters to autism communities following approval of the experiment through the institutional review …

Distinguishing Between Symptom Presence And Severity Using A Two-Part Sequential Model, Luiza Ferreira Pradera

Theses and Dissertations

Most symptom measures either implicitly or explicitly distinguish between symptom presence and symptom severity. For example, item 2 on the PHQ-9, a commonly used measure of depressive symptoms, asks respondents to rate how much they have been 'feeling down, depressed, or hopeless.' The response options are 0 (Not at all), 1 (Several Days), 2 (More than half the days), and 3 (Nearly every day). Answering 0 indicates that the symptom is not present, and any response greater than 0 suggests the symptom is present. Higher values indicate higher severity of the symptom. Although the response options distinguish between symptom presence …

Development Of Zr(Iv) Mof-Enabled Nerve Agent Electrochemical Hydrolysis Sensors, Tyler James Marlar

Theses and Dissertations

Nerve agents are acetylcholinesterase inhibitors and among the most toxic chemical warfare agents ever synthesized. Detection of these chemicals is critical for the protection of populations and strategic resources. G-series nerve agents are volatile compounds. V-series nerve agents are persistent phosphonothioate compounds. Persistent nerve agents do not readily volatilize and can contaminate environmental resources for extended periods. While nerve agents are inherently non-electroactive, they can be hydrolyzed to electroactive products compatible with electrochemical sensing. Zr(IV) MOFs are next-generation nanoporous materials, which have been shown to rapidly catalyze nerve agent hydrolysis. In this work, the catalytic processes of MOF-808, a specific …

Developing An Artistic Self In Preservice Elementary Teachers: A Studio Art Curriculum To Promote Art Integration, Karilee D. Park

Theses and Dissertations

With the continual use of standardized testing, teaching art in schools, particularly elementary schools, often falls to generalist teachers with little to no experience in art. While art can be integrated into daily curriculum for deeper and lasting learning, without the proper training or support, generalist teachers are left to implement art as they encountered it in the past, if at all. Artistic anxiety and culturally misappropriated artistic experiences result in the arts being used inefficiently or avoided completely. Creating a curriculum for preservice elementary generalist teachers, I explored art integration through developing artistic confidence, skill, and identity for 16 …

Comics About Organs: Social Support And Graphic Medicine In The Awkward Yeti, Jacob Gibb

Theses and Dissertations

Comic strips have always been a medium for more than humor. Many comic strips published on social media sites address mental health issues. Despite their popularity, the field of graphic medicine, which examines the intersection of health care and comics, has seen little to no examination of how these comics function on social media. Utilizing the popular comic The Awkward Yeti, this research examines how the rhetorical devices of comics make them an ideal medium for communicating about mental health issues and providing social support to social media users. This study conducts a content analysis of 15 Instagram posts from …

Validating Boyness: How Art Education Allows Male Adolescent Students A Space For Authenticity, Vulnerability, Empathy, And Connection, Stephanie Behlke-Mcfarland

Theses and Dissertations

This thesis examines societal norms and unwritten rules for boys as they mature. It is hypothesized that most boys deal with emotional suppression or dissociation in varying degrees of severity due to traumas during their developmental years. This dissociation creates an inability to express their own emotions adequately and therefore affects their ability to empathize with others. A lack of vulnerability may also be a common challenge among boys society still considers vulnerability weakness. This pattern continues into adulthood and is then perpetuated through posterity and future generations. This thesis explores through a qualitative case study how using art integration …

Evaluating The Effectiveness Of Dormant Season Grazing To Reduce Cheatgrass And Its Effect On Biodiversity, Curtis L. Drake

Theses and Dissertations

Invasion of cheatgrass (Bromus tectorum L.) into sagebrush steppe communities threatens the survival of these at-risk ecosystems. One tool available to combat cheatgrass invasion is dormant season grazing. This study investigates the effectiveness of dormant season cattle grazing to reduce cheatgrass abundance in two high-elevation sagebrush steppe communities in southeastern Idaho, as well as the impact of dormant season grazing on plant species biodiversity. Our experiment utilized a randomized complete block design with four grazing treatments – ungrazed, fall-grazed, spring-grazed, and a combination of spring- and fall-grazed. We used an ANOVA standard least squares procedure to determine differences in biodiversity …