Digital Commons Network^™

Thermal Management Of Roadway-Embedded Power Electronics For Electric Vehicle Dynamic Wireless Charging Systems, Conner R. Sabin

All Graduate Theses and Dissertations, Fall 2023 to Present

Electric vehicles (EVs) are gaining popularity worldwide. However, concerns raised by the public about purchasing EVs include the limited availability of charging infrastructure, high costs, and the inconvenience of current charging methods. Dynamic wireless charging systems enable electric vehicles to charge while driving, thereby extending the range of EVs and reducing the necessity for large, expensive batteries. Moreover, these systems can initiate charging automatically without user interaction, enhancing charging convenience.

The ground assembly of existing dynamic wireless charging systems consists of an electromagnetic assembly, power electronics for the transmitter pad, and power electronics for grid connection. Installation of these systems …

An Examination Of Traumatic Brain Injury And Genes For Neurotrophins And Apolipoprotein E In Predicting Cognitive Function In Older Adults: The Cache County Study, Mikaela A. Drewel

All Graduate Theses and Dissertations, Fall 2023 to Present

Recovery from a traumatic brain injury (TBI) is influenced by a wide array of factors including age at incidence, number, and severity as well as genetic factors, some of which exhibit sex-dependent effects. This study examines how TBI history influences rate of cognitive decline in older adults, exploring the characteristics of TBI (e.g., number, severity, and timing) as predictors and interactions of TBI history with genetic variants suspected to play a role in brain health and late-life cognitive functioning. These genes include the Apolipoprotein E (APOE) as well as brain derived neurotrophic factor (BDNF) and its receptors. This study analyzed …

Rapid Prediction Of Buoyancy-Driven Exchange Flows At The Great Salt Lake: Ml Models And A 1d Shallow Water Approach, Eric M. Larsen

All Graduate Theses and Dissertations, Fall 2023 to Present

The Great Salt Lake in Utah, USA, is a hypersaline terminal lake divided in to northern and southern arms by the Union Pacific Railroad causeway since the 1950's. This separation has caused a difference in density and water surface elevation between lake arms. These differences result in a buoyancy-driven exchange flow occurring through an engineered breach in the causeway. Traditionally, modeling the flow through the breach has been done by numerically solving the 1D steady shallow water equations, and using computational fluid dynamics (CFD). The CFD models yield high accuracy results, but require substantial computing resources. This research proposes the …

Developing A Hyperspectral Remote Sensing-Based Algorithm To Diagnose Potato Moisture For Water-Saving Irrigation, Qiqige Suyala, Zhuoling Li, Zhenxin Zhang, Liguo Jia, Mingshou Fan, Youping Sun, Haifeng Xing

Plants, Soils, and Climate Faculty Publications

Appropriate water supply is crucial for high-yield and high-quality potato tuber production. However, potatoes are mainly planted in arid and semi-arid regions in China, where the precipitation usually cannot meet the water demand throughout the growth period. In view of the actual situation of water shortage in these areas, to monitor the water status of potato plants timely and accurately and thus precisely control the irrigation are of significance for water-saving management of potatoes. Hyperspectral remote sensing has unique advantages in diagnosing crop water stress. In this paper, the canopy spectral reflectance and plant water content were measured under five …

Cherry Powdery Mildew In Utah, Marion Murray, Christina Lilligren, Megan Kast

All Current Publications

This fact sheet provides information on powdery mildew, a common problem in commercial tart and sweet cherry orchards in Utah and throughout the western U.S. Hosts, disease biology, symptoms and signs, and management are covered.

Utah Consumer Preferences And Willingness To Pay For Specialty Labeled Fruit Products, Kynda R. Curtis, Makaylie Langford, Marcelo Pignatari

All Current Publications

In this fact sheet, we discuss the results of a 2023 study examining Utah consumer preferences and willingness to pay (WTP) for fruit products labeled local (Utah’s Own™), organic, and GMO-free. We discuss and compare survey respondents' past consumption, awareness, preferences, and attitudes toward these labeling programs. Additionally, we examine consumer WTP values for each of these labels for three fruit varieties and fresh and dried products, namely fresh apples, strawberries, and dried tart cherries.

Ocean Temperatures Do Not Account For A Record-Setting Winter In The U.S. West, Matthew D. Laplante, Liping Deng, Luthiene Dalanhese, Shih-Yu Wang

Journalism and Communication Faculty Publications

The record-setting winter of 2022–2023 came as an answer to both figurative and literal prayers for political leaders, policy makers, and water managers reliant on snowpacks in the Upper Colorado River Basin, a vital source of water for tens of millions of people across the Western United States. But this “drought-busting” winter was not well-predicted, in part because while interannual patterns of tropical ocean temperatures have a well-known relationship to precipitation patterns across much of the American West, the Upper Colorado is part of a liminal region where these connections tend to be comparatively weak. Using historical sea surface temperature …

The Memory-Keeping Daughter: Exploring Object Stories And Family Legacies From America's Modern Wars, Susan R. Grayzel

History Faculty Publications

This essay demonstrates how wartime objects can have a special resonance in families as keepers of memory, and it especially explores the role of daughters of military participants in preserving the artifacts of their veteran fathers. Using several case studies from a recent public history project collecting objects and object stories in the American southwest, it argues that a focus on daughters as caretakers of family military history offers a new way to engage with descendants' histories by showing how the work of such women can contribute to our understanding of modern war and its legacies.

Accuracy And Effectiveness Of An Orchestration Tool On Instructors' Interventions And Groups' Collaboration, Luettamae Lawrence, Emma Mercier, Taylor Tucker Parks, Nigel Bosch, Luc Paquette

Instructional Technology and Learning Sciences Faculty Publications

This paper presents the development of a novel orchestration tool that predicts collaborative problem-solving (CPS) behaviors of undergraduate engineering groups and investigates the use of that tool by instructors. We explore the impact of receiving real-time, machine-learning, model-based prompts on 1) instructors' orchestration strategies, which are strategies instructors use to manage and facilitate collaborative activities, and 2) groups' participation, including how groups are engaged in CPS activities. The orchestration tool is a dashboard that notifies instructors of–and advises them on–monitoring and intervening with groups who may need collaborative support and guidance. We describe the accuracy of the models in predicting …

Collaborative Knowledge Braiding For Restoration: Assessing Climate Change Risks And Adaptation Options At Wuda Ogwa In Southeastern Idaho, United States, Sofia Koutzoukis, Will Munger, Lindsay Capito, Darren Parry, Brad Parry, Sarah C. Klain, Mark W. Brunson, Nancy Huntly, Travis Taylor

Wildland Resources Faculty Publications

The restoration of culturally significant landscapes poses formidable challenges given more than 160 years of settler-colonial land use change and a rapidly changing climate. A novel approach to these challenges braids Indigenous and western scientific knowledge. This case study braids Indigenous plant knowledge, species distribution models (SDMs), and climate models to inform restoration of the Bear River Massacre site in Idaho, now stewarded by the Northwestern Band of the Shoshone Nation. MaxEnt SDMs were used to project the future spatial distribution of culturally significant plant species under medium (SSP2-4.5) and high (SSP5-8.5) emissions scenarios. These results support Tribal revegetation priorities …

Seed Mix Performance With Environmental Stressors And Invasion: Implications For Wetland Restoration, Maddie Houde, Karin Kettenring

Browse all Datasets

Seed-based revegetation is increasingly pursued in wetland restoration, but seed and seedling mortality is high and can be further limited by environmental stressors, like hydrology and salinity. The interactive effects of hydrology and salinity on native plants, especially in the presence of invasive plants, are less clear. In greenhouse and mesocosm experiments, we tested different hydrologic and salinity conditions on the growth of native seed mixes and Phragmites australis, a widespread wetland invader in North America. The greenhouse experiment tested two mixes (forb mix, graminoid mix), while mixes in the mesocosm experiment combined forbs and graminoids chosen for broad …

Quaking Aspen In A High-Use Recreation Area: Challenges Of People, Ungulates, And Sodium On Landscape Resilience, Georgie Corkery, Anna B. Miller, Paul C. Rogers

Environment and Society Student Research

Quaking aspen (Populus tremuloides Michx.) landscapes are valued for their biodiversity, water retention, fire mitigation, aesthetics, and recreation opportunities. Across North America, some aspen populations are experiencing population declined as they face uninhibited ungulate browsing, drought, fire suppression, insects, disease, and inappropriate management. Increased human development and recreational use within aspen landscapes can serve as additive stressors, though there is a dearth of literature examining these elements. At a popular recreational area in Utah, USA, identifying the cause of apparent decline within a larger aspen community is complicated by development upstream and recreation-related activities. We sought to (1) assess …

Phylogenomics Recovers Multiple Origins Of Portable Case Making In Caddisflies (Insecta: Trichoptera), Nature's Underwater Architects, Paul B. Frandsen, Ralph W. Holzenthal, Marianne Espeland, Jesse Breinholt, Jessica A. Thomas Thorpe, Sabrina Simon, Akito Y. Kawahara, David Plotkin, Scott Hotaling, Yiyuan Li, C. Riley Nelson, Oliver Niehuis, Christoph Mayer, Lars Podsiadlowski, Alexander Donath, Bernhard Misof, Emily Moriarty Lemmon, Alan Lemmon, John C. Morse, Shanlin Liu, Steffen U. Pauls, Xin Zhou

Watershed Sciences Faculty Publications

Caddisflies (Trichoptera) are among the most diverse groups of freshwater animals with more than 16 000 describes species. They play a fundamental role in freshwater ecology and environmental engineering in streams, rivers and lakes. Because of this, they are frequently used as indicator organisms in biomonitoring programmes. Despite their importance, key questions concerning the evolutionary history of caddisflies, such as the timing and origin of larval case making, remain unanswered owing to the lack of a well-resolved phylogeny. Here, we estimated a phylogenetic tree using a combination of transcriptomes and targeted enrichment data for 207 species, representing 48 of 52 …

The Shell Tutor: An Intelligent Tutoring System For The Unix Command Shell And Git, Jaxton Winder, Erik Falor, Seth Poulsen, John Edwards

Computer Science Faculty and Staff Publications

The command shell and Git are important tools for computer scientists to learn and is taught in many computer science curricula. Many tools used by computer scientists are primarily interfaced through the command shell, such as Git. However, there have been few studies and interventions designed to assist in understanding student behaviors in the command shell and better teaching of it. This paper aims to provide an overview and reflection of a novel intelligent tutoring system we developed, the Shell Tutor, which assists in teaching students the command shell and Git. This paper will also analyze features of this tool …

Expression And Secretion Of Sparc, Fgf-21 And Dcn In Bovine Muscle Cells: Effects Of Age And Differentiation, Katie A. Shira, Kara J. Thornton, Brenda M. Murdoch, Gabrielle M. Becker, Gwinyai E. Chibisa, Gordon K. Murdoch

Animal, Dairy, and Veterinary Science Faculty Publications

Skeletal muscle growth is an economically important trait in the cattle industry. Secreted muscle-derived proteins, referred to as myokines, have important roles in regulating the growth, metabolism, and health of skeletal muscle in human and biomedical research models. Accumulating evidence supports the importance of myokines in skeletal muscle and whole-body health, though little is known about the potential presence and functional significance of these proteins in cattle. This study evaluates and confirms that secreted proteins acidic and rich in cysteine (SPARC), fibroblast growth factor 21 (FGF-21), myostatin (MSTN), and decorin (DCN) are …

High Sugar Diet Alters Immune Function And The Gut Microbiome In Juvenile Green Iguanas (Iguana Iguana), Kwanho C. Ki, Erin L. Lewis, Elizabeth Wu, Francis J. Oliaro, Lise M. Aubry, Charles R. Knapp, Karen M. Kapheim, Dale Denardo, Susannah S. French

Biology Faculty Publications

The present work aimed to study whether a high sugar diet can alter immune responses and the gut microbiome in green iguanas. Thirty-six iguanas were split into four treatment groups using a 2x2 design. Iguanas received either a sugar-supplemented diet or a control diet, and either a lipopolysaccharide (LPS) injection or a phosphate-buffered saline (PBS) injection. Iguanas were given their respective diet treatment through the entire study (~3 months) and received a primary immune challenge 1 and 2 months into the experiment. Blood samples and cloacal swabs were taken at various points in the experiment and used to measure changes …

Impact Of The 2023 Central Utah Grazing Expo, Trenton Wilde, Eric Thacker, Ryan Larsen, Chad Page, Burdette Barker, Mark Nelson, Matt Palmer, Steven Price, Jacob Hadfield, Kalen Taylor, Ethan Gilliam

Outcomes and Impact Quarterly

A collaboration between Extension Agriculture and Natural Resource specialists and county faculty responded to a need to educate public land grazing permit holders, public land management agency personnel, and public members on regulations, management, economics, and social values associated with public land grazing permits.

Computational Models As Tools For Supporting Responsive Teaching, Hillary Swanson, Luettamae Lawrence, Jared Arnell, Bonni Jones, Bruce Sherin, Uri Wilensky

Instructional Technology and Learning Sciences Faculty Publications

It is widely agreed that science instruction should help students build new knowledge on the foundation of their prior knowledge. Responsive teaching refers to a family of teaching strategies that pursue and build on student ideas. We introduce a particular approach to responsive teaching and examine how it can be supported by the use of computational models. We analyze an 8^th grade science teacher's facilitation of a class discussion near the end of a lesson on sound. We present a moment-by-moment characterization of her responsive teaching moves, highlighting the ways she used a computational model to help students articulate …

Atmospheric Waves Experiment (Awe) Thermal Control System: From Design Through On-Orbit Thermal Performance, Matthew I. Ralphs, Mike Holt

Space Dynamics Laboratory Publications

The Atmospheric Waves Experiment (AWE) will provide the first global characterization of atmospheric waves that originate in Earth’s lower atmosphere and affect space weather. The instrument has been installed on the International Space Station (ISS) ExPRESS Logistics Carrier (ELC) 1 since November 2023. The main thermal control system consists of a passive, ambient temperature, bi-directional radiator to which pyrolytic graphite sheet (PGS) thermal straps connect four independent detectors, whose temperatures are actively controlled by thermoelectric coolers (TECs). This paper discusses the thermal design, thermal model correlation efforts (both with test temperature data and flight temperature data), and how the predictions …

Children's Mathematical Engagement Based On Their Awareness Of Coding Toy Design Features, Joseph Kozlowski, Jessica Shumway, Patricia Moyer-Packenham, Jody Clarke-Midura, Victor Lee

Teacher Education and Leadership Faculty Publications

Tangible coding toys are designed to make coding accessible to young children, and because of their tangible and spatial nature, they are also viewed as tools for engaging children in mathematics. Research is needed to understand children's awareness of toys' design features and how they afford mathematical engagement. We conducted a qualitative study of 106 5-to-6-year-old children completing coding tasks (42 hours of video). Our research questions focused on children's perceptions of design features, mathematical engagement, and how different design features afforded mathematics engagement. Results indicated (a) children perceived a variety of design features across coding toys; (b) children engaged …

An Introspective Understanding Of Livestock Movement, Ethan Gilliam

All Current Publications

This fact sheet creates a framework for understanding how human presence influences the movement of livestock animals. Although this work references sheep and cattle, the introspective approach to understanding livestock movement can be applied to a variety of livestock species. This fact sheet highlights self-confidence in livestock handling and training through calm working experiences.

One Size Does Not Fit All: A Multifaceted Approach To Educate Families About Newborn Screening, Marianna H. Raia, Molly M. Lynch, Alyson C. Ward, Jill A. Brown, Natasha F. Bonhomme, Vicki L. Hunting

Psychology Faculty Publications

All families deserve access to readily available, accurate, and relevant information to help them navigate the newborn screening system. Current practices, limited resources, and a siloed newborn screening system create numerous challenges for both providers and families to implement educational opportunities to engage families in ways that meet their needs with relevant and meaningful approaches. Engaging families in newborn screening, especially those from historically underserved communities, is necessary to increase knowledge and confidence which leads to overall improved outcomes for families. This article describes three strategies that the Navigate Newborn Screening Program developed, tested, and implemented in the United States, …

Conveniently Pessimistic: Manipulating Beliefs To Excuse Selfishness In Charitable Giving, Zeeshan Samad

Economics and Finance Faculty Publications

This paper demonstrates how people can manipulate their beliefs in order to obtain the self-image of an altruistic person. I present an online experiment in which subjects need to decide whether to behave altruistically or selfishly in an ambiguous environment. Due to the nature of ambiguity in this environment, those who are pessimistic have a legitimate reason to behave selfishly. Thus, subjects who are selfish but like to think of themselves as altruistic have an incentive to overstate their pessimism. In the experiment, I ask subjects how optimistic or pessimistic they feel about an ambiguous probability and then, through a …

Importance Of Extrinsic Cues Of Grass-Fed Beef By U.S. Consumers Across Regions, Elizabeth K. Crandall, Kelsey Hall

Applied Sciences, Technology and Education Faculty Publications

Extrinsic qualities have become a priority because they affect the type of beef consumers purchase from grocery stores, farmers' markets, restaurants, and private vendors (Cheung et al., 2017; Gwin & Lev, 2011). Some consumers are concerned with the beef they eat, wanting to know about health benefits (Cheung et al., 2017; Gwin & Lev, 2011), the origin of their food (Grunert, 2005), animal welfare (FMI & FMRPE, 2018; Gillespie et al., 2016), concerns about how their beef is produced (Birt, 2017; Gillespie et al., 2016; Yang & Woods, 2016), environmental practices (FMI & FMRPE, 2018), etc. Increased premiums on grass-fed …

Design Forms And Games, Hillary Swanson, Ha Nguyen, Caroline Lavoie, Trilby Nelson

Instructional Technology and Learning Sciences Faculty Publications

This paper introduces a theoretical framework for characterizing design processes as design games. Based on Collins and Ferguson's epistemic forms and games, the framework characterizes design processes as games played by designers to fill out design forms, which are general templates underlying specific design artifacts. We introduce our framework through games involved in human-centered design, describing for each the entry conditions, target form, constraints, and moves. We demonstrate how the framework can be used to characterize design games played by experts in museum exhibit design and urban design. Through similar analyses, the framework …

What Happened To The Geometry? Examining Spatial And Mathematical Concepts In Computational Toys And Kits For Young Children, Jody Clarke-Midura, Jessica F. Shumway, Anahita Ashineh, Alireza Zandi, Whitney Clawson

Instructional Technology and Learning Sciences Faculty Publications

This paper explores the design of computational toys and kits for young children (ages 4-7) as tools for learning integrated mathematical, spatial, and computational thinking concepts. Specifically, we examine how the design features of the toys and kits represent the concepts of rotation on a point and spatial orientation of the agent. We examine toys and kits sold commercially, developed through research, and used in early childhood classrooms. Our findings indicate that the mathematical and spatial concepts are overlooked in some designs. Prior research examined toys for their affordances related to computational thinking, the present study contributes to understanding of …

Cytokine-Supplemented Maturation Medium Enhances Cytoplasmic And Nuclear Maturation In Bovine Oocytes, Renata Blocher, Ying Liu, Tayler Patrick, Irina A. Polejaeva

Animal, Dairy, and Veterinary Science Faculty Publications

Bovine in vitro oocyte maturation (IVM) is an easy way to obtain oocytes for subsequent assisted reproductive techniques but is inefficient compared to in vivo maturation. Supplementation of three cytokines, fibroblast growth factor 2 (FGF2), leukemia inhibitory factor (LIF), and insulin-like growth factor 1 (IGF1), or FLI, has increased oocyte maturation and embryo development in multiple species, but studies have not explored the oocyte differences caused by FLI IVM supplementation. This study aimed to assess important nuclear and cytoplasmic maturation events in high-quality oocytes. FLI-supplemented oocytes had a decreased GV (3.0% vs. 13.7%, p < 0.01) and increased telophase I incidence (34.6% vs. 17.6%, p < 0.05) after IVM, increased normal meiotic spindles (68.8% vs. 50.0%, p < 0.001), and an increased nuclear maturation rate (75.1% vs. 66.8%, p < 0.001). Moreover, in metaphase II oocytes, the percentage of FLI-treated oocytes with a diffuse mitochondrial distribution was higher (87.7% vs. 77.5%, p < 0.05) and with a cortical mitochondrial distribution was lower (11.6% vs. 17.4%, p < 0.05). Additionally, FLI-supplemented oocytes had more pattern I cortical granules (21.3% vs. 14.4%, p < 0.05). These data suggest that FLI supplementation in bovine in vitro maturation medium coordinates nuclear and cytoplasmic maturation to produce higher-quality oocytes.

Supplementary Files For "Using Digitized Building And Weather Records To Improve The Accuracy Of Ground To Roof Snow Load Ratio Estimations", Gideon Parry, Brennan Bean

Browse all Datasets

Reliability targeted snow loads (RTLs) measure the weight in accumulated snow (i.e. snow load) that a roof is required to support to ensure the probability of failure is suf- ficiently low. This calculation has historically relied upon a probability distribution that characterizes the ratio between the annual maximum ground snow load to the annual max- imum roof snow load, a quantity referred to as Gr. The best available data for estimating Gr comes from Canadian case studies from the 1950s and 1960s. However, much of the data was never digitized, with only approximations of data being made available in scanned …

Effects Of Differing Radiation Methods On Charge Transport In Polymers, Zachary Gibson, Jr Dennison, Virginie Griseri

Presentations

The mitigation of deleterious arcing and sparking onboard spacecraft depends upon a thorough understanding of the electrical properties of the materials involved. This includes not only understanding steady-state parameters such as dark conductivity, but responses to the space environment as well. For example, radiation-induced conductivity drastically changes the conductivity of a material due to the presence of radiation. However, this change in conductivity diminishes away once the radiation is no longer present. There may also be permanent changes, or aging, in the material properties. The physical processes of aging can be complicated and are often difficult to model. Therefore, empirical …

Development And Validation Of A High School Agricultural Literacy Assessment, Rose Judd-Murray, Brian K. Warnick, Daniel C. Coster, Max L. Longhurst

Teacher Education and Leadership Faculty Publications

The National Agricultural Literacy Outcomes (NALOs) are knowledge benchmarks for school-aged youth and are used to improve agricultural literacy (National Agriculture in the Classroom, 2014; National Center for Agricultural Literacy, 2017). Despite educational efforts, prior research indicated that high school populations remained at low or deficient literacy levels. Additionally, no agricultural literacy assessment instruments using the NALOs as a standardization benchmark have been developed for the 9-12th grades. The purpose of the study was to validate a summative NALO-centered assessment that could provide baseline data on agricultural literacy following the completion of secondary education (12th grade). The study followed the …