Digital Commons Network^™

A Data-Driven Nutrient Density Scoring Framework For Beef Using Principal Component Analysis, Teja Vuppala

All Graduate Theses and Dissertations, Fall 2023 to Present

Beef is one of the most nutrient-rich foods in the human diet, providing high-quality protein, iron, omega-3 fatty acids, B vitamins, and a wide range of other compounds important to health. However, current nutrition scoring systems used on food labels were designed to compare different foods to one another — for example, beef versus broccoli — and do not work well for judging the nutritional quality of different beef samples relative to each other. A grass-fed steak and a conventionally-finished steak can carry nearly identical Nutrition Facts panels while differing substantially in their content of omega-3 fatty acids, vitamins, and …

Microbes In Pollination Systems: Effects On Pollinator Health, Floral Traits, Nectar Robbing, And Plant Fitness, Valerie Nicole Martin

All Graduate Theses and Dissertations, Fall 2023 to Present

Flowers produce nectar to attract pollinators, but nectar is also a habitat for yeasts and bacteria that arrive via pollinators, robbers, and other visitors. These microbes consume nectar sugars and release byproducts that change the smell and taste of nectar. Whether these changes affect how pollinators find and choose flowers, and whether they ultimately affect how many seeds a plant produces, is not well understood. In this dissertation, I studied how a common nectar yeast and a plant-associated bacterium affect the scent of wildflowers, the behavior of bumble bees and hummingbirds, and plant reproduction in montane meadows in central Colorado. …

Language Learning Under Pressure: Rethinking Anxiety, Assessment, And Support In Second Language Classrooms, Bryn C. Cole

All Graduate Reports and Creative Projects, Fall 2023 to Present

This portfolio examines the role of anxiety in second language acquisition (SLA) and its impact on student performance, assessment, and overall participation. Drawing on both the author’s classroom experience and SLA research, it argues that language anxiety should be understood as a structural feature of classroom environments rather than an individual learner deficit. The paper explores how traditional assessment practices may obscure students’ underlying competence by prioritizing performance under pressure. It proposes two key shifts in response: reformatting assessments as a more flexible and context-sensitive process, and integrating peer mentorship as a form of interpersonal instructional support. Together, these approaches …

The Economics And Viability Of Organic Forage And Grain Production In Utah, Mackenzie Lee

All Graduate Reports and Creative Projects, Fall 2023 to Present

Utah farmers face significant financial and agronomic challenges when transitioning into organic forage and grain production. The state’s high-desert climate, alkaline soils, and limited irrigation water make organic production more expensive and riskier than in many other regions.

This study evaluates a ten-year rotation built around alfalfa, which acts as a natural nitrogen engine for the system. Because alfalfa fixes large amounts of nitrogen, it reduces fertilizer costs for later crops such as organic corn. However, farmers must first survive the three-year transition period, during which they must follow organic rules but cannot sell their crops at organic prices.

Using …

Developing A Resilient Park For Palisade State Park: A Model For Intermountain West State Parks, Hirone T. Warner

All Graduate Reports and Creative Projects, Fall 2023 to Present

Palisade State Park in central Utah is a cherished natural resource, offering diverse recreational opportunities and serving as an important ecological habitat. However, the park faces increasing challenges due to increasing visitation and the impacts of climate change. This thesis presents a strategic master plan for Palisade State Park, designed to guide its development over the next 20 years.

Recognizing the need for a sustainable approach, this project adopts a participatory method, involving park users, residents, and environmental experts in the planning process. The goal is to create a master plan that not only addresses the park’s immediate needs but …

Tales, Traditions, And Tides: The Little Logan River And Its Role In Cache Valley's History, Culture, And Conservation, Emily A. Kovacic

All Graduate Reports and Creative Projects, Fall 2023 to Present

The Little Logan River (LLR) plays a vital role in the cultural, historical, and ecological landscape of Cache Valley, Utah. Amid growing concerns raised by the Logan River Watershed Project (LRWP), which threatens to alter the river’s environment, this project seeks to understand the significance of the LLR as a cultural and recreational asset through collected oral histories. Building on folkloric perspectives of place-based storytelling, this thesis introduces the idea of vivus locum, or “that place which is alive,” through the example of the LLR to the study of folkloristics. The concept of vivus locum emphasizes the importance of …

The Development Of A Plant Database For Waterwise Plants Along The Intermountain West, Tyler G. Peterson

All Graduate Reports and Creative Projects, Fall 2023 to Present

This thesis presents the rationale behind the importance of accurate 3D plant models. The research conducted provides logical explanations for why we should accurately represent plants in our 3D models, not only as landscape architects but as designers in general. In addition to this research, a database of waterwise plants was produced to provide designers with a resource to better represent landscapes. During the creation of this database, detailed process records were maintained to enable others to continue to add to and build on the work done within this thesis. It is hoped that this database, begun in this thesis, …

Reintegrating Contaminated Sites Into The Urban Fabric: Redevelopment In Pocatello, Idaho, Hadley Ocheltree

All Graduate Reports and Creative Projects, Fall 2023 to Present

Brownfield sites represent some of the most environmentally compromised landscapes in the United States and are frequently concentrated within economically disadvantaged communities, raising important environmental justice concerns. Redeveloping these sites requires integrated approaches that address contamination, urban form, ecological restoration, and long term community needs. This thesis examines the 143 acre former Union Pacific Railroad site in Pocatello, Idaho and proposes a comprehensive redevelopment framework that reconnects a historically significant industrial landscape to the surrounding city.

The project draws from an analysis of eight precedent brownfield redevelopment projects and applies key planning and landscape architecture principles, including New Urbanism, pedestrian …

Retrofitting Chapel Lawns: Shifting The Landscaping Paradigm In Utah, Jessica Snider

All Graduate Reports and Creative Projects, Fall 2023 to Present

Utah is facing a water crisis. The state’s aggressive rate of population growth combined with its dry climate makes it difficult to meet water demands and has pushed the Great Salt Lake to the verge of collapse. Utah residents can save water by installing waterwise landscapes instead of lawns. As one of Utah's most prominent organizations and a strong advocate for earth stewardship, The Church of Jesus Christ of Latter-day Saints is well positioned to lead a cultural shift toward more sustainable landscaping practices by showcasing well-designed, well-maintained waterwise landscapes at its chapels. The purpose of this project is to …

Isolation, Identification, And Enzymatic Screening Of Fungi From Utah Dryland Soils For Industrial And Waste Valorization Applications, Jessica Lorena Silva Cuero

All Graduate Reports and Creative Projects, Fall 2023 to Present

Agricultural waste accumulation presents environmental challenges but also opportunities for biological valorization into value-added products. Fungi are particularly well-suited for this purpose due to their capacity to produce extracellular enzymes involved in the degradation of complex organic substrates. Dryland ecosystems represent a promising source for bioprospecting microbes capable of producing such enzymes. Drylands harbor a high diversity of extremophilic microorganisms that can withstand harsh conditions, extreme heat, UV, and low nutrients using unique adaptations. This suggests that these microbes are resilient and capable of surviving under varying conditions and still produce enzymes for biotransformation. The objective of this study was …

A Design Guide For Extreme Heat In Play Environments: Exploring Landscape Architecture Strategies, Amy Elise Guenther

All Graduate Reports and Creative Projects, Fall 2023 to Present

Urban heat is a rising concern and is affecting vulnerable populations such as our youth. A particular concern is exposure to extremely high temperatures on playgrounds – an environment that is meant to be safe for children even in extreme weather conditions. There has been an increase in many impervious surfaces such as concrete and asphalt in urban areas. These surfaces absorb solar radiation, which contributes to the heat island effect. These same surfaces are in and around playground areas, which are contributing to the extreme heat felt within these play environments. Therefore, requiring intervention to help mitigate the effects …

Reciprocal Teaching With Emergent Bilingual Students: Promoting Academic Reading Strategies And Fostering Hope, Lorissa K. Nelson

All Graduate Theses and Dissertations, Fall 2023 to Present

Many students struggle with reading comprehension, and research shows that low literacy skills in a student’s first language can unfortunately lead to lower rates of university program completion, regardless of the language of instruction. When students feel empowered and confident in their ability to achieve their academic goals, they are much more likely to take ownership of their learning. In fact, students who actively demonstrate hopeful thinking and behaviors are consistently more successful in their academic journeys.

My research explores how we can better support these high school students— specifically concurrent enrollment (CE) students—by examining the impact of Reciprocal Teaching. …

"In Any Other Circumstance I Am Not In Work Mode. I Am Clocked Out": Chappell Roan And The Objectified Persona, Aubry Louise

All Graduate Theses and Dissertations, Fall 2023 to Present

It is known that celebrities have influence on their audience’s attitudes and behaviors. Within the last few decades, multiple celebrities have created distinctions between their public/stage self and their private self, however, less is known about the ways that they differentiate between the two. This paper looks at celebrity public persona’s and how these persona’s influence their audience. I use Kayleigh Amstutz, otherwise known as Chappell Roan, as my case study. This thesis offers an analysis of how Amstutz talks about Kayleigh differently than Chappell within social media posts, interviews, and commentary from media outlets. I use the concepts of …

The Role Of Autonomy, Competence, And Relatedness In The Relationship Between Ai Use, Resilience, And Motivation Among Engineering Students, Daniel Kane

All Graduate Theses and Dissertations, Fall 2023 to Present

The purpose of this study was to determine how the widespread use of Artificial Intelligence (AI) influences engineering students’ motivation and resilience. Specifically, the role of autonomy, competence, and relatedness as defined in Self-Determination Theory (SDT) was assessed to determine how these basic psychological needs interact with students’ AI use and motivation or resilience. The following research questions guided the study: (1) To what extent do the three basic psychological needs defined in SDT (autonomy, competence, and relatedness) mediate the relationship between the frequency of AI use and students’ levels of motivation (on the self-determination continuum) or resilience in an …

Integrative Taxonomic Analysis Of Cryptic Species Diversity In The Spiny Witch-Hazel Gall Aphid, Hamamelistes Spinosus (Hemiptera: Aphididae: Hormaphidini) In Eastern North America, Gavin Andrew Powell Munson

All Graduate Theses and Dissertations, Fall 2023 to Present

Taxonomy is the practice of identifying, classifying and categorizing species, providing structure for the vast diversity of life. Aphids are an ecologically important group of soft-bodied insects, but they can be difficult to identify because of their tiny anatomical size, reduced or simplified morphological features, and morphological variation within a single species across different generations. In this study, the taxonomy of the spiny witch-hazel gall aphid, Hamamelistes spinosus, is revised. The complex multi-generational life cycle of the aphids, which alternates between witch-hazel and birch trees, has led to confusion regarding past descriptions. Scientists in the late 1800s who were …

Nutrient Leaching Under Traditional And Intercropped Cover Crop Fields In Northern Utah, Katherine Hewitt

All Graduate Theses and Dissertations, Fall 2023 to Present

This study examines whether cover crops can be used in Utah and the Intermountain West to improve water quality and reduce contamination due to nutrient leaching from agricultural soils into the groundwater. Cover crops such as grasses, clover, and other seed mixtures can be planted to improve soil health, increasing the soil’s ability to retain water and nutrients, which reduces the amount of nitrate and phosphate fertilizers lost through leaching and contamination. In Utah, short growing seasons and limited irrigation water availability hinder the ability to establish cover crops. By planting the cover crop between the rows (intercropping) when the …

Flexible Grazing: Evaluating Stocker Cattle As A Drought Management Tool For Utah Livestock Producers?, Ross Israelsen

All Graduate Reports and Creative Projects, Fall 2023 to Present

Drought is a persistent concern in the western United States, often leading to reduced forage production, overgrazing, and economic challenges for livestock producers. This study evaluates the economic feasibility of incorporating stocker cattle as a flexible drought management strategy under varying forage conditions across four Utah grazing locations: Park Valley, Nephi, Vernal, and Beaver. The Rangeland Analysis Platform (RAP) was used to estimate annual forage production and stocking rates from 2001 through 2025. Four stocking-rate scenarios (100%, 75%, 60%, and 50% cow–calf stocking rates) were evaluated using a Net Present Value (NPV) framework to compare the economic performance of traditional …

A Focus On Student Needs In German Instruction, Elisa E. Remund

All Graduate Reports and Creative Projects, Fall 2023 to Present

This portfolio serves as documentation of the author’s professional progress throughout the Master of Science of Second Language Teaching (MSSLT) program at Utah State University, shown through teaching philosophy, hands-on teaching experience and practice, and demonstrates the author’s use of pedagogical strategies and theory, including but not exclusive to comprehensible input, the sociocultural method, dynamic assessment, and the output hypothesis. It details the usage of current research-based strategies to increase classroom engagement and student proficiency, such as the IMAGE Model for teaching culture and language, collaborative learning, and dynamic assessment strategies. Furthermore, the portfolio includes a reflection on the benefits …

Quaking Aspen On Cedar Mountain, Utah: Status And Update, Jaycee Cappaert, Larissa L. Yocom, Paul C. Rogers, Darren J. Mcavoy, R. Justin Derose

Wildland Resources Student Research

Quaking aspen forests are important communities in the western United States where they provide preferential food and habitat for animals, limit wildfires from spreading, and have favorable aesthetics, among other things. Their putative decline is an issue for ecology and management. We remeasured the aspen population on Cedar Mountain, Utah, to assess changes to its condition since it was originally measured in 2008 and laid the groundwork for continued aspen monitoring on Cedar Mountain. Our objectives were to compare current metrics of stand structure and composition, mortality, crown dieback, bole damage, regeneration, and recruitment, to those of the original inventory. …

Developing A New Uas Method For Estimating Heat Exposure On Western Us Trails, Jared Young

All Graduate Theses and Dissertations, Fall 2023 to Present

Heat exposure and the risks to human health that stem from it have been studied extensively in the context of urban and occupational settings. Less studied however, is the effect of heat exposure in a recreational setting such as on hiking trails. What makes this fact more surprising is that recreation, especially in the Western US, is extremely popular, with national parks such as Zion and Arches bringing in hundreds of thousands of visitors every year. With millions of recreationists exposed to the hazard of heat every year, it is critical that recreationists are made aware of the dangers they …

Cadmium Biosorption By Fusarium Venenatum And Its Application In Functional Permeable Materials For Metal Removal, Bradley Lawson

All Graduate Theses and Dissertations, Fall 2023 to Present

Heavy metals are pollutants of increasing concern as continued industrialization and urbanization have escalated the discharge of these toxins into aquatic environments. Cadmium (Cd) is a metal of particular concern due to its acute toxicity and high mobility in aquatic ecosystems. Given these characteristics Cd poses significant health risks to both humans and aquatic ecosystems. The continued development of sustainable, low-cost remediation technology is imperative to manage metal pollution.

This research explores the use of fungal-based remediation systems to remove Cd from contaminated water. Living biomass of the filamentous fungus Fusarium venenatum was evaluated as a biosorbent material for Cd …

Asynchronous Intervention For Students With Disabilities On Career Awareness, Erica Rood

All Graduate Theses and Dissertations, Fall 2023 to Present

Historically, students with disabilities have fewer opportunities to prepare for post-high school life, and this is especially true when it comes to getting a job. This is also true for those students with complex support needs (i.e., autism spectrum disorder, intellectual disability, other health impairment). One way to help individuals with disabilities have greater success after high school is to teach them about different careers.

This study was for high school students with disabilities who have complex support needs. It focused on helping them learn about different careers through online modules. The study looked at whether this type of learning …

Integrating Hydrology And Human Water Footprints: A Case Study Of The Great Salt Lake Basin, Rachel Lynne Seeley

All Graduate Theses and Dissertations, Fall 2023 to Present

Global demand for water is outrunning supply, and how we account for water is part of the problem. Many water management frameworks are based solely on how much physical water moves through rivers, aquifers, and other water bodies, missing the water that is embedded in food and other products a region produces and exports. This study developed a new, generalizable water accounting framework that incorporates this “hidden water,” known as virtual water, into water management and applied the framework in the Great Salt Lake Basin.

The Great Salt Lake is shrinking, and an often-overlooked driver of the lake’s decline is …

Cash, Cleats, And Carpools: A Multi-Method Investigation Of Resource Allocation In Families With Youth Athletes, Emily Susan Delisle

All Graduate Theses and Dissertations, Fall 2023 to Present

The current thesis is an investigation of time and financial resource allocation in families with youth athletes. Study 1 used a survey questionnaire to explore how the number of athletes in a family impacted the way parents allocated time and financial resources to their oldest child’s youth sport participation. Results indicate that an increase in the number of athletes in a family does not decrease parents’ time or financial commitments to their oldest child’s youth sport participation. Study 2 used interviews to explore how nine parents with multiple athletes experienced the intersecting demands of time, finances, and family life while …

Advancing Management Strategies For Two Promising Mason Bee Species (Osmia Ribifloris And Osmia Bruneri) For Berry Pollination, Miranda L. Jones

All Graduate Theses and Dissertations, Fall 2023 to Present

Bee management can broadly refer to human manipulation of one or multiple parts of a bee’s lifecycle. Managing honey bees, commonly referred to as beekeeping, is responsible for providing most pollination for global food crops. However, using more than one bee species for crop pollination can have many benefits. Benefits include better crop pollination and insurance in case one bee species underperforms or its population collapses. Some bees within the genus Osmia are already widely managed for crop pollination because their developmental lifecycle allows bee managers to readily deploy pollinating bees in sync with varying crop blooms, and for certain …

Evolving Roles: School Counselors Addressing Mental Health In Pk-12 Education, Evin Daines

All Graduate Theses and Dissertations, Fall 2023 to Present

A significant number of children and youth are currently experiencing poor mental health. School counselors work with all students and are in a position to provide support to students experiencing mental health challenges. School counselors can also identify what may hinder children and youth from accessing mental health resources in their communities. This study explores how many school counselors engage in mental health counseling, how school counselors view their roles in addressing student mental health, and what barriers they perceive as keeping children and youth from accessing mental health and behavior services.

Pavlovian Conditioning And Self-Control: From Laboratory To Classroom Application, Saba Mahmoudi

All Graduate Theses and Dissertations, Fall 2023 to Present

Impulsive choice, the preference for a smaller-sooner reward (SSR) over a larger-later reward (LLR), is associated with various challenging behaviors (e.g., gambling and substance-used disorders). Many interventions can reduce impulsive choice but those that produce long-lasting effects typically require long training durations or are difficult to implement in applied settings. This dissertation evaluated a novel Pavlovian training approach designed to promote self-control. In Experiment 1, procedures from Mahmoudi and Madden (2024) were replicated in the laboratory with the addition of a truly random control group. The study also assessed whether presenting the conditioned stimulus (CS) before a choice would increase …

An Examination Of Lifetime Traumatic Brain Injury And Anti-Inflammatory Medication Use In The Risk For Alzheimer's Disease, Mikaela A. Drewel

All Graduate Theses and Dissertations, Fall 2023 to Present

Alzheimer’s disease (AD) is the leading cause of dementia in individuals aged 65 years and older. There are a number of lifestyle and genetic factors that affect one’s risk for AD including traumatic brain injury (TBI), and genes such as those for Apolipoprotein E (APOE) and brain-derived neurotrophic factor (BDNF). This study examined sex differences in how TBI history influences risk for AD, exploring genetic variants suspected to play a role in TBI recovery. Additionally, in following an inflammatory mechanism in TBI, the study also determined if nonsteroidal anti-inflammatory drug (NSAID) use reduced subsequent risk for AD. The study analyzed …

Patterns Of Presidential Executive Orders And Democratic Quality: Evidence From The United States, 2017-2025, Karyn Sofie Sanford

All Graduate Theses and Dissertations, Fall 2023 to Present

Democratic backsliding has become an increasingly prominent topic in political science, yet relatively little attention has been devoted to how observable expressions of executive authority correspond with changes in democratic quality. Using the United States as a case study, this study examines the relationship between presidential executive orders and democratic quality from 2017 to 2025. More specifically, it investigates whether characteristics of executive orders correspond with changes in democratic quality, measured using the Liberal Democracy Index and the Judicial Constraints Index from the Varieties of Democracy (V-Dem) Project.

Presidential executive order issued between 2017 and 2025 were collected from the …

Ucedds Fill Gaps In Disability Services: A Storyteller’S Perspective, Jolynne J. Lyon

Developmental Disabilities Network Journal

A UCEDD writer's reflections on years of interviewing people with disabilities, service providers and researchers. The stories are profound, often because the service gaps bridged by the UCEDD are so great.