Digital Commons Network^™

Maximizing Dryland Seed-Based Restoration Success Via Retrospective Analyses Of Species-Use Patterns And Field Testing Of Seed Mix Composition, Spencer J. Good

All Graduate Theses and Dissertations, Fall 2023 to Present

Due to harsh and variable environmental conditions, successful plant establishment in "dryland" ecosystems – areas with scarce precipitation – is a major challenge for restoration. One of the most important decisions influencing restoration outcomes is choosing which species to plant (i.e., species selection). Here I explored two opportunities to improve restoration success related to species selection. First, I examined recent restoration projects across Utah, USA to understand species selection patterns by site conditions (e.g., precipitation, elevation) and seed costs, and to identify tools for matching species to sites. Second, I tested how commonly used non-native species – those not originally …

Component Analysis Of Interactive Computer Training To Teach Paraprofessionals To Deliver Behavioral Skills Training, Scott V. Page

All Graduate Theses and Dissertations, Fall 2023 to Present

In education and Applied Behavior Analysis, there is growing demand for well-trained entry-level individuals to deliver behavior interventions. Interactive Computer Training allows trainees to access online instruction with video demonstrations, interactive tasks, and feedback, without a live instructor. This training approach could save valuable training time and money. Prior researchers demonstrated these types of training can teach trainees to correctly use behavior interventions. There are gaps in our understanding of Interactive Computer Trainings that limit its successful use. Few studies measured cost-effectiveness, identified the effective features of Interactive Computer Training (e.g., videos, quizzes, feedback), or trained users to deliver effective …

Desert Drowning: A Short Story Collection, Steve Shumway

All Graduate Theses and Dissertations, Fall 2023 to Present

As many young men born in Utah, I grew up Mormon, a member of the Church of Jesus Christ of Latter-Day Saints. While this is not out of the ordinary in this state, my connections within the history of the church were. My grandfather's great grandfather Charles Shumway was one of the first Mormon settlers to cross the plains and settle in what would become the state of Utah. Not only that, he was one of Brigham Young's most trusted lieutenants, instructed to scout ahead of the main wagon trains, and later settle parts of Northern Arizona, where the town …

On The Multi-Modal Psychological Experience Of Competence In Youth Sport, Liam O'Neil

All Graduate Theses and Dissertations, Fall 2023 to Present

Over the past half century, beliefs about athleticism (i.e., sport competence) have been thought of as central to motivation for youth sport. In this time, however, these competence beliefs have been narrowly studied which has limited their value in explaining youth sport participation. To expand our understanding of competence beliefs and their motivational significance in youth sport, the three studies of this dissertation tested a longstanding but understudied idea that competence beliefs encompass both judgments of, and emotions about, competence. In Study One, existing research on judgments of competence in youth sport was reviewed. This study showed that many personal …

The Impact Of Absolute Education On Young Voter Turnout, Reagan Roark

All Graduate Theses and Dissertations, Fall 2023 to Present

American civic education continually proves to need attention and reform. This research evaluates whether implementing specific teaching strategies at the high school level impacts a student's future political participation; specifically, to more clearly outline whether a high school level civics curriculum directly impacts a student's likelihood to cast a voting ballot in midterm and presidential elections within six years of graduation. This paper aims to understand better if teaching and/or education reform is effective in helping future generations and the democratic fate of our country. In this study, we measure the current state civic graduation requirements compared with the state's …

Contrastive Representation Learning For Highly Imbalanced Multivariate Time Series With Extreme Instance Strategy, Onur Vural

All Graduate Theses and Dissertations, Fall 2023 to Present

Time series data refers to a sequence of data points collected or recorded at regular time intervals. In many fields including space weather, healthcare, and finance, predicting events from such data is crucial because these predictions can help protect infrastructures, improve healthcare outcomes, and forecast financial trends. However, one challenge in working with time series data is the presence of rare events, which are often underrepresented in the data. This imbalance makes it difficult for traditional prediction methods to provide accurate results, as they tend to focus more on the more frequent events and overlook the rare ones. To tackle …

Disentangling Factors Contributing To Population Performance Of Zion Bighorn Sheep, Ian Montgomery

All Graduate Theses and Dissertations, Fall 2023 to Present

Bighorn sheep populations across the western United States face increasing challenges from habitat loss, disease, and predation. In Zion National Park and surrounding areas, survey-based estimates indicate that the desert bighorn sheep population declined from over 800 individuals in 2018 to fewer than 500 in 2021. Understanding what drives these population changes is critical for effective wildlife management and conservation. This research examined key factors influencing population growth and individual survival to inform strategies for recovery in this bighorn population.

First, we analyzed which vital rates contributed most to population trends by estimating survival and reproduction rates from ground and …

Critically Assessing Normative Methods And Their Limitations In Managing Crowding Within Parks And Protected Areas, Glendon R. Vansandt

All Graduate Theses and Dissertations, Fall 2023 to Present

Visitor experiences in parks and protected areas are shaped by a variety of environmental, managerial, and social factors. To ensure that visitors enjoy their time in these spaces, management agencies often adopt guidelines to establish acceptable levels for different aspects of these experiences. One of the most selected factors is perceived crowding, which reflects how crowded visitors feel in a given area. When perceived crowding exceeds desired levels, it can significantly diminish visitor satisfaction.

This thesis presents two studies aimed at identifying the shortcomings of the management of perceived crowding. The first study conducts a comprehensive literature review that identifies …

Caregiver Implemented Standardized To Individualized Behavior Analytic Toilet Training Package For Autistic Preschoolers, Jessica A. Osos

All Graduate Theses and Dissertations, Fall 2023 to Present

Autistic children often face challenges with toilet training and may benefit from a more structured and systematic approach compared to methods used for neurotypical children. While research and literature in this area has shown that behavior analytic toilet training packages can lead to increasing successful urinations and reducing accidents for autistic children, limitations such as not including caregivers as the individuals implementing the package, unsustainable sit schedules, and lack of acceptable levels of checks for accurate data collection and implementation of procedures highlight the need for refining of implementation oversight and examination of updated toileting procedures without the use of …

Water Use By Irrigated Turfgrass And Connections To Climate And Biophysical Processes, Karem Meza

All Graduate Theses and Dissertations, Fall 2023 to Present

Urbanization and limited water supply and storage result in imbalanced urban water budgets. Quantification of water use becomes important in urban landscapes because urban turfgrass requires a significant amount of water and competes with other urban requirements. Evapotranspiration (ET) plays a crucial role in determining irrigation needs. Credible measurements and spatial estimates of urban turfgrass ET are needed for urban water management. However, these have not been addressed in urban landscapes in arid and semiarid regions. Despite estimating spatial urban turfgrass ET, turfgrass quality linked to ET has not been widely evaluated. Due to different environmental conditions, the driving forces …

Climate Prediction As An Adaptive Force-Multiplier: Reasons For Hope In A Rapidly Changing World, Matthew D. Laplante

All Graduate Theses and Dissertations, Fall 2023 to Present

It's not unreasonable to feel pessimistic about our future under climate change. But "believing the science" doesn't require you to accept that we are headed toward apocalypse. It is true that human-caused climate change is real, it is underway, and our societies face many increased risks because of it. But that's just part of what climate science tells us about our future world. This same field is responsible for the recent and rapid development of tools and techniques that permit the identification of patterns in our oceans and atmosphere that will aid us in making increasingly accurate predictions about climate—the …

Making Peace Among The People: The Development Of Brigham Young's Political Thought And Activity, 1838-1846, Garrett R. Elkins

All Graduate Theses and Dissertations, Fall 2023 to Present

Brigham Young assumed the role as president of the Quorum of the Twelve Apostles of the Church of Jesus Christ of Latter-day Saints in 1838, as the Church began to face extreme persecutions by the state of Missouri. Although he was a mostly apolitical individual preceding his new role, over the next eight years Young would hold political office and help the Church navigate challenging relationships with local, state, and federal governments. By the time he led the Latter-day Saints to the Great Basin and became president of the Church in 1847, Young had gained significant experience over several years …

Strategies For Writing Synthesis To Learn: A Case Study Among Sixth-Grade Social Studies Students, Kalie A. Chamberlain

All Graduate Theses and Dissertations, Fall 2023 to Present

Writing instruction that emphasizes strategy use helps students become better writers, especially when tackling difficult writing tasks, such as writing from sources or writing syntheses. Strategic writing instruction also supports student learning in content areas like social studies. This project examined whether Strategies for Writing Synthesis to Learn (SWSL), a mode of strategic writing instruction developed by researchers in Spain, would be effective in a new context. It also sought to understand how SWSL was perceived by students and teachers. A mixed-methods case study was used to explore both quantitative (e.g., student growth) data and qualitative (e.g., student and teacher …

Impacts Of Reef Fish Length On Foraging Radius: Exploring Behavioral Patterns Within A Patch Reef Ecosystem, Kilia Brawand

Undergraduate Honors Capstone Projects

Reef fish exhibit various behaviors upon the Great Barrier Reef. One of these behaviors includes that of limiting their grazing distances from a patch reef refuge to a certain maximum distance in order to avoid predators. This is defined as a ‘foraging radius’ or ‘margin of safety’. This ‘foraging radius’ varies among fish due to many factors- including species, morphology, ontogenesis, habitat complexity, and importantly: speed. Quicker fish can outswim predators to safety more efficiently than slower fish, and can therefore afford to travel farther distances to forage. Speed varies among fish for a number of reasons, including fish size …

Exploring The Potential Of Exit Tickets As Formative Assessments Of Student Affect, Umar Shehzad, Mimi Recker, Jody Clarke-Midura

Publications

This study investigates the use of exit tickets as formative assessments in math-integrated computer science (CS) lessons for grade 5 students. Exit tickets are brief surveys administered immediately after instructional activities. Using structural equation modelling (SEM), we analysed data from 1,067 students to examine the reliability and validity of exit tickets in predicting summative pre/post survey results. The study found that the exit ticket responses consistently assessed student affect at two administration points, meeting strict measurement invariance criteria (χ2(21) = 1.34, p = 1.00). Confirmatory factor analysis revealed that exit tickets predicted student self-efficacy and interest in CS, which are …

Electromagnetic Sensor Sampling Volumes And Water Content Calibration In Coarse-Textured Porous Media Using Layered Mixing Theories, Chieh Yun Chang

All Graduate Theses and Dissertations, Fall 2023 to Present

Measuring soil water content is crucial for various applications, such as agriculture and environmental monitoring. Scientists use sensors that rely on electromagnetic waves to estimate soil water content by measuring the dielectric of media. However, factors, including the frequency of the sensor's measurements, soil particle size and distribution, and the soil's electrical conductivity, can affect the dielectric measurements and, consequently, the accuracy of the water content estimation. To improve the accuracy of electromagnetic-based sensors, it is important to calibrate them properly and understand their sensing volume to ensure the use of an appropriately sized calibration container. In this study, we …

Adversarial Voltage Transients In Multi-Tenant Fpga Environments, Andrew J. Gerber

All Graduate Theses and Dissertations, Fall 2023 to Present

A Field Programmable Gate Array (FPGA) is a special type of computer chip that can be reconfigured to implement a nearly unlimited number of functions. Recent trends have led some companies to offer cloud-based FPGA solutions. Researchers are exploring how to properly secure multi-tenant environments where the designs from two or more customers are placed on the same FPGA with logical and spatial isolation, though multi-tenancy is not yet commercially available in cloud FPGAs. The digital circuits within an FPGA require a clock to synchronize timing within the design. The maximum speed that this clock can run at is determined …

Caregiver Mand Training: Evaluating The Effects Of Using Bug-In-Ear Coaching Via Telehealth, Makenna P. Carnesecca

All Graduate Theses and Dissertations, Fall 2023 to Present

Applied Behavior Analysis has been seen to be an effective way to help teach skills to children with autism. Caregivers' involvement in teaching these skills is beneficial for their child's progress. Using Bug-in-Ear coaching, which provides in-the-moment instructions and feedback to caregivers via Bluetooth headphones, has been demonstrated to be a potential way to train caregivers to teach skills to their children. This current study aimed to evaluate if the use of Bug-in-Ear coaching via telehealth was an effective way to teach caregivers to train their children how to ask for wanted foods using picture cards. The results of this …

Analyzing Microalgae-Bacteria Population Changes In Response To Environmental Parameters For Improved Wastewater Treatment, Amanda M. Moravek

All Graduate Theses and Dissertations, Fall 2023 to Present

Microalgae are incredible organisms that have a variety of uses such as wastewater treatment, fertilizer, livestock feed, and bio-compound production. Microalgae require a light source and minimal nutrients space to proliferate, making them an environmentally friendly and sustainable option for such processes. The Sustainable Wastes-to-Bioproducts Engineering Center at Utah State University is developing and implementing a Rotating Algae Biofilm Reactor (RABR) to remove total nitrogen and phosphorous from the Central Valley Wastewater Reclamation Facility wastewater effluent. Harmful compounds such as nitrates and phosphates are metabolized by the microalgae and converted into useful bioproducts, resulting in a circular economy. These RABRs …

Potamogeton Crispus Invasion: Impacts On Native Aquatic Plants And Associated Faunal Habitat, Meghan-Grace Slocombe

All Graduate Theses and Dissertations, Fall 2023 to Present

Aquatic invasive plants are non-native plants that invade a water body and displace native aquatic plants. Invasion depletes the native plant community's ability to provide ecosystem services, including improved water quality, decreased problematic algae, and increased animal habitat. The loss of these ecosystem services reduces the value of fishing, boating, and swimming opportunities in aquatic ecosystems. The potential changes in plant communities and services are particularly important at sites targeted for restoration because project goals typically include increasing ecosystem services, including wildlife habitat. Curly-leaf pondweed (Potamogeton crispus L.) is a problematic invasive species in North America. To better manage …

Learning Outdoors: A Pilot Program For Early Childhood Educator Professional Development, Cari Lee Gongora

All Graduate Theses and Dissertations, Fall 2023 to Present

Research supports the use of outdoor spaces as a learning environment for child development; however, some early childhood educators may struggle to support learning when outdoors with young children. Reframing teacher mindset towards outdoor environments, gaining a knowledge of child development, and understanding how it applies within the context of naturalist studies have been identified as three key areas supportive for early childhood educators as they work outdoors with young children. Additionally, designing professional development sessions with targeted material, opportunities for observations, and providing time with a coach for support may further support learning and implementation of targeted material.

This …

Designing Accessible And Dependable Tools For Vocational Rehabilitation Data Analysis, Ruth E. Taylor

All Graduate Theses and Dissertations, Fall 2023 to Present

Since 1973, the U.S. Rehabilitation Services Administration (RSA) has partnered with state vocational rehabilitation (VR) agencies to help individuals with disabilities achieve meaningful employment and independence. RSA-911 datasets play a crucial role in this effort by capturing detailed participant data, but their complexity can hinder effective analysis.

To simplify this process, we present an R software package to streamline the cleaning and analysis of RSA-911 and Transition Readiness Toolkit (TRT) data, a new measure of program effectiveness. We also deliver a user-friendly dashboard, empowering both VR researchers and counselors with the opportunity to conduct analyses. Using our developed tools, we …

Identifying And Addressing Current Gaps In Knowledge And Treatment Dissemination For Individuals With Trichotillomania, Leila K. Capel

All Graduate Theses and Dissertations, Fall 2023 to Present

Trichotillomania is an impairing and debilitating mental health condition, and while the research in this area is growing, this population is underserved. The aim of this project was to identify gaps in the research that may be contributing to lack of treatment access and begin filling those gaps. The first gap is knowledge of how treatments work and for whom they work best. While there are a variety of treatment options and ways of delivering treatment, individual factors that predict who will benefit most are not well investigated. We explored the individual factors, and aspects of treatment that we believe …

A Pavlovian, Conditioned-Reinforcement Approach To Reducing Impulsive Choice, Katherine Garland

All Graduate Theses and Dissertations, Fall 2023 to Present

Persistent impulsive choice (the preference for a smaller-sooner over a larger-later reward) is associated with consequential life outcomes. Procedures that reduce nonhuman impulsive choice have long training durations that may reduce their translational utility. The purpose of this experiment was to test a new behavioral intervention to reduce impulsivity that requires few sessions to implement. Delay-bridging stimuli (stimuli presented during the delay to a reward) have been shown to reduce impulsive choice, but delay-bridging stimuli may also be aversive. Conditioned stimuli (CS) established through Pavlovian training are, on the other hand, attractive, potentially even functioning as a conditioned reinforcer (CR). …

Challenging Behavior In Inclusive Postsecondary Education Programs, Samantha J. Nercesian

All Graduate Theses and Dissertations, Fall 2023 to Present

Inclusive postsecondary education programs – higher education programs that are specifically designed for individuals with intellectual disabilities – have grown exponentially in the last 10 years. With this growth has come the emergence of several barriers to inclusive postsecondary education admission and completion. Given the relatively short time inclusive postsecondary education programs have existed, only a small amount of research has looked into barriers that prevent graduation from inclusive postsecondary education programs. One barrier in particular has received little to no attention from researchers – challenging behavior. Challenging behavior is a construct that includes socially inappropriate behaviors, which may harm …

Uv-A Light And Heat-Activated Antimicrobial And Biodegradable Materials For Food Packaging And Preservation, Michael J. Bodily

All Graduate Theses and Dissertations, Fall 2023 to Present

Current food packaging materials are often non-biodegradable and harmful for ingestion, which poses a threat to the environment and public health. Thus far, the dangers of microbial contamination of food on human health have outweighed the risks associated with using these conventional packaging plastics. A possible solution to these issues is to use a combination of innovative materials and microbial inactivation methods that can potentially both reduce plastic waste and combat harmful microorganisms. In this study, two antimicrobial, biodegradable composites were developed and tested for their ability to inactivate two types of bacterium, Escherichia coli K12 and Listeria innocua, …

"Once Our Land Is Gone, It's Gone": Farmer Perspectives On Growth, Embeddedness, And The Future Of Food In The Great Salt Lake Basin, Bryn Noelle Watkins

All Graduate Theses and Dissertations, Fall 2023 to Present

The Great Salt Lake Basin hosts a knot of intensifying pressures on agriculturalists—including economic constraints, as even arable land is increasingly valuable for development, and ecological constraints, as aridification and climate change affect the conditions in which food can grow. Given the unique relationship farmers have with the land as its modern-day stewards, their perspectives on the nature and consequences of these pressures offer profound insights into how the region might responsibly navigate its resource management and food systems moving through the future. In the first paper, I draw upon 15 interviews with commodity farmers to understand their experiences with …

Effects Of Plant Biostimulants On Onion Growth And Production Under Greenhouse And Field Conditions, Prakriti Nepal

All Graduate Theses and Dissertations, Fall 2023 to Present

The escalating impact of climate change on agricultural production underscores the need to investigate sustainable crop enhancement methods. This research explores the use of plant biostimulants to grow onion (Allium cepa L.) under varying environmental conditions. In the initial germination and greenhouse screening, seven biostimulants were tested on ‘Vaquero’ onion seeds: three bacterial products (Continuum, Spectrum DS, and Tribus Original), two mycorrhizal products (Mighty Mycorrhizae and Myco Apply), one seaweed extract product (Seaweed), and one product containing humic acid (Huma Pro 16). Mighty Mycorrhizae, Continuum, and Myco Apply supported faster germination, while seeds treated with Spectrum and Seaweed took …

A Laboratory Study Of Local Scour And Driftwood Effects At A Type A Piano Key Weir, Manisha Panthi

All Graduate Theses and Dissertations, Fall 2023 to Present

Piano key weirs are a unique weir designed to increase the amount of flow that passes over it via its zig-zag shape (similar to the rectangular shape of keys of a piano). With its relatively small footprint, they are becoming more popular to upgrade existing water management projects and are also being used in new construction works. However, there is little information available regarding how these weirs handle sediment and driftwood. Additional information will help researchers and designers to understand the challenges of upstream sediment buildup, driftwood accumulation, and the effects of floods on downstream scour with viable protection measures. …

Development Of Saddlepoint Methodologies For Sparse Sample Multiple Parameter Generalized Linear Models And Correlated Data Scenarios, Christopher Johnson

All Graduate Theses and Dissertations, Fall 2023 to Present

Parameter estimation using maximum likelihood techniques may be biased when sample sizes are small, event rates are low, or otherwise sparse counts exist in a parametric model. This in turn may lead researchers to draw invalid statistical conclusions when conventional methods are utilized. The saddlepoint approximation has potential to lessen the degree of bias in sparse data conditions through its use of moments beyond the mean and variance, which allows for more accurate approximations using a smaller number of observations. We propose two novel saddlepoint methods for use in practical analysis scenarios, as an alternative to maximum likelihood estimation. First, …