Digital Commons Network^™

Contrasting Nitrogen Sources Impact Nitrogen Use Efficiency And Soil Health Under Silage Corn Production In A Semi-Arid Environment, Phearen Kit Miller

All Graduate Theses and Dissertations, Fall 2023 to Present

Silage corn production challenges sustainable intensification and soil health in semi-arid environments because the entire aboveground biomass is harvested and removed from the field. An irrigated silage corn field study was conducted over a decade comparing nitrogen fertility sources using a complete randomized block design with four treatments: control with no nitrogen fertilizer (control), low ammonium sulfate at 112 kg N ha⁻¹ (AS100), high ammonium sulfate at 224 kg N ha⁻¹ (AS200), and steer manure compost at 224 kg total N ha⁻¹ (compost). Research focused on the impact of these contrasting nitrogen sources on silage corn production, …

Collective Teacher Efficacy And Effective Title I Eligible Schools: A Mixed Methods Approach, Donald R. Mendenhall

All Graduate Theses and Dissertations, Fall 2023 to Present

Students living in poverty have historically scored lower than more affluent peers. However, research suggests that collective teacher efficacy (CTE) may be more strongly associated with student academic success than socioeconomic background. Therefore, this study identifies successful Title I eligible schools that also have high levels of collective teacher efficacy to identify methods for increasing CTE in schools. A mixed methods research study model is used to explain how two successful Title I schools were able to achieve academic success and high levels of CTE. The study finds some of the perceptions of school staff, and the actions and processes …

Spatiotemporal Dynamics Of Disease: Social And Environmental Drivers Of Movement, Connectivity, And Disease Transmission In Bighorn Sheep, Lauren E. Ricci

All Graduate Theses and Dissertations, Fall 2023 to Present

Movement is a fundamental component of animal ecology. Animals move in order to access resources and avoid risk. Movement decisions aggregated across time determine how individuals use space, contact dynamics between individuals within a population, and connectivity across a species range. These patterns that emerge from movement decisions have downstream implications for many ecological processes and a mechanistic understanding of movement can help answer broader questions about ecology.

Disease dynamics are intrinsically tied to movement. Understanding the mechanisms that drive movement can elucidate how disease will spread and impact host populations. In this vein, I employed a suite of movement …

Spatial Ecology Of Mule Deer Migrations From Grand Teton National Park And The Teton Range, Justin K. Schwabedissen

All Graduate Theses and Dissertations, Fall 2023 to Present

The Greater Yellowstone Ecosystem hosts several of the longest, fully intact ungulate migrations remaining in the continental United States. However, expanding development and an increasing human footprint continue to truncate migratory routes. While the endpoints are often a seasonal range on protected lands, these migration corridors frequently cross other jurisdictional boundaries, including large tracts of private or multiple-use lands, with varying levels of protection. Thus, it is critical resource managers understand the dynamics of migratory movements to define population-level corridors and prioritize appropriate conservation strategies. Mule deer in Wyoming have been documented traveling long distances between summer and winter ranges; …

Evaluating An Integrated Science, Technology, Engineering, And Math/Computational Thinking Professional Development Program For Elementary Level Paraprofessional Educators, Aubrey A. Rogowski

All Graduate Theses and Dissertations, Fall 2023 to Present

For my dissertation, I looked at a training program one Utah school district used to teach paraprofessional educators science, technology, engineering, math, and computational thinking. Specifically, the program taught them about what computational thinking is and how they could use it when teaching science, technology, engineering, and math to students from kindergarten to sixth grade. While reviewing this program, I evaluated 1) The experiences the paraprofessionals had with the program, 2) Whether the paraprofessionals understood computational thinking, and 3) Whether the program prepared them to teach computational thinking to K-6 students.

I worked with eight paraprofessionals who participated in this …

Developing A Methodology For Evaluating The Sensitivity Of Rock Imagery Sites To Vandalism In Washington County, Ut, Erin C. Haycock

All Graduate Theses and Dissertations, Fall 2023 to Present

This study uses statistical analysis to examine the relationship between the characteristics of rock imagery (also known as rock art) sites and intentionally caused damages in Washington County, Utah. This project aims to create an index for public land managers to respond proactively to vandalism at rock imagery sites. Included here is an analysis of the severity and frequency of damage to the sites and an inventory of the types of site damage to determine the most common and destructive types of vandalism. Site attributes such as the number of figures in a panel, the type of images, and panel …

Exploring Farmers' Willingness To Accept Payment For Agricultural Conservation In Utah, Asif Ahmed Khan

All Graduate Theses and Dissertations, Fall 2023 to Present

In view of Utah’s drought situation and the need for conservation of water use, this thesis tries to calculate the compensation required for farmers to switch from cultivating alfalfa-which requires a lot of water, to less water-consuming crops like wheat, hay and even pasture. It proposes a new technique for this calculation using big data, including satellite images from National Aeronautics and Space Agency (NASA), agricultural statistics from National Agricultural Statistics Service (NASS), climate data from Parameter-elevation Regressions on Independent Slopes Model (PRISM) climate group and land use data from the state of Utah. These data are integrated into a …

Water Data Science: Data Driven Techniques, Training, And Tools For Improved Management Of High Frequency Water Resources Data, Amber Spackman Jones

All Graduate Theses and Dissertations, Fall 2023 to Present

Electronic sensors can measure water and climate conditions at high frequency and generate large quantities of observed data. This work addresses data management challenges associated with the volume and complexity of high frequency water data. We developed techniques for automatically reviewing data, created materials for training water data managers, and explored existing and emerging technologies for sensor data management.

Data collected by sensors often include errors due to sensor failure or environmental conditions that need to be removed, labeled, or corrected before the data can be used for analysis. Manual review and correction of these data can be tedious and …

Understanding Peer Interactions In Undergraduate Engineering Education, Jack C. Elliott

All Graduate Theses and Dissertations, Fall 2023 to Present

Whether they occur inside or outside the classroom, social interactions between undergraduate students play a key role in student success. As a result, engineering education researchers have sought to understand why students interact with certain peers, and which types of interactions relate to positive student outcomes. While existing studies show promising results for formal group assignments, most have been conducted in a single undergraduate course. Because important student interactions occur outside and inside courses, more research is needed to fully understand (a) why students choose to, or not to, interact with other students, and (b) how these interactions relate to …

Morphological And Physio-Biochemical Responses And Gene Expression Analyses Of Landscape Plants Under Salinity Stress, Asmita Paudel

All Graduate Theses and Dissertations, Fall 2023 to Present

Soil salinity is a significant global issue that adversely impacts the growth and development of landscape plants. One of the effective strategies to prevent salinity damage to landscape plants is to cultivate species that are tolerant to the prevailing salinity levels. Salinity tolerance varies among plant species and cultivars. Therefore, this research aimed to investigate the salinity tolerance of nine landscape plants [Albizia julibrissin (mimosa tree), Arctostaphylos uva-ursi (kinnikinnick), Cercocarpus ledifolius (curl-leaf mountain mahogany), Cercocarpus montanus ‘Coy’ (alder-leaf mountain mahogany), Penstemon barbatus ‘Novapenblu’ (rock candy blue^® penstemon), Penstemon strictus ‘Rocky Mountain’ (rocky mountain beardtongue), Punica granatum ‘Wonderful’ (pomegranate), …

Inferring A Hierarchical Input Type For An Sql Query, Santosh Aryal

All Graduate Theses and Dissertations, Fall 2023 to Present

SQL queries are a common method to retrieve information from databases, much like asking a detailed question and getting a precise answer. Plug-and-play queries simplify the process of querying. In a Plug-and-play SQL query a programmer sketches the shape of the input to the query as a hierarchy. But the programmer could make a mistake in specifying the hierarchy and it takes programmer time and effort to specify the hierarchy. A better solution is to automatically infer the hierarchy from a query. This thesis presents a system to infer a hierarchical input type for an SQL query. We consider two …

Dionysus The Barbarian, Deven Salisbury

All Graduate Theses and Dissertations, Fall 2023 to Present

This thesis analyzes the changes in the way the Greeks depicted foreigners and Dionysus, the god of wine, over a period of approximately four hundred years in their art and literature. It argues that ways in which the god and foreigners (also known as "barbarians") are closely linked and that the changes made to Dionysus' character are closely analogous to those they made to the characterization of the barbarian.

A Content Analysis On Emotions Presented In Preschool Children's Television, Sarah Austin

All Graduate Theses and Dissertations, Fall 2023 to Present

Learning about emotions is an essential aspect of early childhood. Because of the increasing access to screen time during the COVID-19 pandemic, children have more resources in their environment to learn from. However, before more can be known about whether children are learning about emotions during their screen time, it is important to know how emotions are being presented to them in their online content. Therefore, this study sought to gather data regarding how four emotions (happiness, sadness, anger, fear) are portrayed verbally and nonverbally among three types of preschool television shows (entertainment, balanced, educational). A sample of 60 preschool …

Advancing Game Development And Ai Integration: An Extensible Game Engine With Integrated Ai Support For Real-World Deployment And Efficient Model Development, Ryan Anderson

All Graduate Theses and Dissertations, Fall 2023 to Present

This thesis introduces Acacia, a game engine with built-in artificial intelligence (AI) capabilities. Acacia allows game developers to effortlessly incorporate Reinforcement Learning (RL) algorithms into their creations. By tagging game elements to convey information about the game state or rewards, developers gain precise control over how RL algorithms interact with their games, mirroring real player behavior or providing full knowledge of the game world.

To showcase Acacia’s versatility, the thesis presents three games across different genres, each demonstrating the engine’s AI plugin. The goal is to establish Acacia as a preferred resource for creating 2D games with RL support without …

Special Study: Vulnerability, Jacob Taylor

All Graduate Theses and Dissertations, Fall 2023 to Present

Special Study: Vulnerability is a collection of creative nonfiction essays engaged in recovering the stories of homeless individuals living in Salt Lake City, Utah. The recovery project is focused on the years 2017-2023, with special attention to the events of Operation Rio Grande (2017-2020). The essays seek to, among other things, provide a critique of public policy, increase public awareness of the issues facing the homeless population, and elicit empathy from readers.

On The Existence Of Periodic Traveling-Wave Solutions To Certain Systems Of Nonlinear, Dispersive Wave Equations, Jacob Daniels

All Graduate Theses and Dissertations, Fall 2023 to Present

A variety of physical phenomena can be modeled by systems of nonlinear, dispersive wave equations. Such examples include the propagation of a wave through a canal, deep ocean waves with small amplitude and long wavelength, and even the propagation of long-crested waves on the surface of lakes. An important task in the study of water wave equations is to determine whether a solution exists. This thesis aims to determine whether there exists solutions that both travel at a constant speed and are periodic for several systems of water wave equations. The work done in this thesis contributes to the subfields …

Conflict Within Wildlife Management On Western Landscapes Home On The Range, Trisha A. Hedin

All Graduate Theses and Dissertations, Fall 2023 to Present

Most of the public lands within the Intermountain West are administered under a multiple-use mandate which emphasizes striking a balance in land use planning among the potentially competing values of livestock grazing, timber production, water supply, extraction of valuable fossil fuels, wildlife, and wilderness. This research sought to dive into a few of these competing values that involve large herbivores that compete for limited forage resources such as livestock and wildlife, on public lands, but also touched upon wildlife on private lands. The first component of research looked specifically at the coexistence of wildlife and livestock on both public and …

Government Misinformation Platforms, Janet Freilich

Faculty Scholarship

There is a harmful mismatch between how information published by the government is perceived-as highly trustworthy-and the reality that it is often not. This Article shows that the government frequently collects information from third party private entities and publishes it with no review or vetting. Although this information is riddled with errors and inaccuracies, scholars, policymakers, and the public treat the information with unwarranted confidence because it derives from the government. Further, institutional imprimatur (and consequent trust) attaches to information even tangentially associated with the government and to information where the government explicitly disclaims review.

This Article highlights the ubiquity …

Review-Charleston Horse Power: Equine Culture In The Palmetto City, Blake Denton

Faculty Publications

No abstract provided.

Dijkgraaf-Witten Theory For Surfaces, Austin Fender

Boise State University Theses and Dissertations

In this paper I describe Dijkgraaf-Witten theory as it applies to oriented surfaces. The first section provides physical motivation from the background of quantum field theory along with necessary definitions and ingredients of a topological quantum field theory. These include category theory, fiber bundles, covering spaces and bordisms. In the second section we make clear the connection between bordisms and principal G-bundles. We then describe the machinery of Dijkgraaf-Witten theory and explicitly construct a topological quantum field theory for the circle. This leads to a brief interlude on representation theory which we use to give constructions on elementary bordisms …

The Effects Of Fermented Vegetables On The Gut Microbiota For Prevention Of Cardiovascular Disease, Melissa Baron, Bin Zuo, Jianmin Chai, Jiangchao Zhao, Alireza Jahan-Mihan, Judy Ochrietor, Andrea Y. Arikawa

Animal Science Faculty Publications and Presentations

This study investigated the impact of regular consumption of fermented vegetables (FVs) on inflammation and the composition of the gut microbiota in adults at increased risk for cardiovascular disease. Eighty-seven adults ages 35–64 were randomized into an FV group, who consumed 100 g FVs daily at least five times per week for eight weeks, or a usual diet (UD) group. Blood and stool samples were obtained before and after the intervention. Dependent samples t tests and adjusted linear models were used for within- and between-group comparisons. The mean age and body mass index of participants were 45 years and 30 …

Gender Pay Equity: An Analysis Of The United States Women’S National Team Soccer Settlement, Joni Hersch, Delaney M. Beck

Utah Law Review

Even though the United States Women’s National Team (“WNT”) has been far more successful than the United States Men’s National Team (“MNT”), the team members have experienced unequal treatment from the United States Soccer Federation (“USSF”) since its inception. In March 2019, members of the WNT filed suit against USSF, alleging that it had violated the Equal Pay Act (“EPA”) and Title VII of the Civil Rights Act of 1964. The complaint alleged that USSF had a policy of discriminating against the WNT due to their players’ gender by paying them less than the MNT and providing them with lesser …

Skimming Genomes For Systematics And Dna Barcodes Of Corals, Andrea M. Quattrini, Luke J. Mccartin, Erin E. Easton, Jeremy Horowitz, Herman H. Wirshing, Hailey Bowers, Kenneth Mitchell, María Del P. González-García, Makiri Sei, Catherine S. Mcfadden

School of Earth, Environmental, & Marine Sciences Faculty Publications

Numerous genomic methods developed over the past two decades have enabled the discovery and extraction of orthologous loci to help resolve phylogenetic relationships across various taxa and scales. Genome skimming (or low-coverage genome sequencing) is a promising method to not only extract high-copy loci but also 100s to 1000s of phylogenetically informative nuclear loci (e.g., ultraconserved elements [UCEs] and exons) from contemporary and museum samples. The subphylum Anthozoa, including important ecosystem engineers (e.g., stony corals, black corals, anemones, and octocorals) in the marine environment, is in critical need of phylogenetic resolution and thus might benefit from a genome-skimming approach. We …

Matching Study Design To Prescribing Intention, Bethany L. Diprete, Gyeon Oh, Daniela C. Moga, Nabarun Dasgupta, Svetla Slavova, Emily Slade, Chris Delcher, Brian W. Pence, Shabbar I. Ranapurwala

Biostatistics Faculty Publications

Purpose: In drug studies, research designs requiring no prior exposure to certain drug classes may restrict important populations. Since abuse-deterrent formulations (ADF) of opioids are routinely prescribed after other opioids, choice of study design, identification of appropriate comparators, and addressing confounding by “indication” are important considerations in ADF post-marketing studies. Methods: In a retrospective cohort study using claims data (2006–2018) from a North Carolina private insurer [NC claims] and Merative MarketScan [MarketScan], we identified patients (18–64 years old) initiating ADF or non-ADF extended-release/long-acting (ER/LA) opioids. We compared patient characteristics and described opioid treatment history between treatment groups, classifying patients as …

Quantifying Image Quality In Aoslo Images Of Photoreceptors, Brea D. Brennan, Heather Heitkotter, Joseph Carroll, Sergey Tarima, Robert F. Cooper

Biostatistics Faculty Publications

The use of “quality” to describe the usefulness of an image is ubiquitous but is often subject to domain specific constraints. Despite its continued use as an imaging modality, adaptive optics scanning light ophthalmoscopy (AOSLO) lacks a dedicated metric for quantifying the quality of an image of photoreceptors. Here, we present an approach to evaluating image quality that extracts an estimate of the signal to noise ratio. We evaluated its performance in 528 images of photoreceptors from two AOSLOs, two modalities, and healthy or diseased retinas. The algorithm was compared to expert graders’ ratings of the images and previously published …

Gopher Tortoises In Protected Natural Areas: Effects Of Natural Area Characteristics On Populations, Taryn Lagor

Graduate Student Dissertations, Theses, Capstones, and Portfolios

The gopher tortoise (Gopherus polyphemus) is native to the Southeast region of the United States. The burrows it digs supports the survival and wellbeing of over 350 other species, with over 60 of those being other vertebrates, making it a keystone species. It is ranked threated to rare by differing organizations with the main threat throughout its entire natural range being habitat loss. The Florida Scrub is the natural habitat of Florida gopher tortoise populations and is one of the fastest declining ecosystems in Florida, particularly in South Florida, due to rapid urban development. Many of the remaining …

The Optimal Timing Of Abscisic Acid Treatment In Arabidopsis Under Drought And Salt Stress, Khelia Gihozo

Graduate Student Dissertations, Theses, Capstones, and Portfolios

As climate change intensifies, harsh environmental conditions, such as increased drought and salt levels, will pose significant challenges to agricultural productivity globally. It is important to develop strategies for plants to tolerate these adverse conditions. This study aims to investigate how well the timing of abscisic acid (ABA) treatment can promote resistance to salt and drought in Arabidopsis thaliana grown on Murashige and Skoog agar medium. The study evaluates both wild-type and transgenic lines overexpressing the DREB2A gene, a transcriptional activator involved in the stress response of plants. Plants were exposed to drought and salt stress as they matured. Followed …

Memo: Dataset And Methods For Robust Multimodal Retinal Image Registration With Large Or Small Vessel Density Differences, Chiao-Yi Wang, Faranguisse Kahki Sadrieh, Yi-Ting Shen, Shih-En Chen, Sarah Kim, Victoria Chen, Achyut Raghavendra, Dongyi Wang, Osamah Saeedi, Yang Tao

Biological and Agricultural Engineering Faculty Publications and Presentations

The measurement of retinal blood flow (RBF) in capillaries can provide a powerful biomarker for the early diagnosis and treatment of ocular diseases. However, no single modality can determine capillary flowrates with high precision. Combining erythrocyte-mediated angiography (EMA) with optical coherence tomography angiography (OCTA) has the potential to achieve this goal, as EMA can measure the absolute RBF of retinal microvasculature and OCTA can provide the structural images of capillaries. However, multimodal retinal image registration between these two modalities remains largely unexplored. To fill this gap, we establish MEMO, the first public multimodal EMA and OCTA retinal image dataset. …

The Dawn Of Advanced Collaborative Practices: Charting Transdisciplinary Synergies Through Thematic And Social Network Analysis Within Boise State's Grand Challenges Initiative, Eva Lorraine Gaudio

Boise State University Theses and Dissertations

The likelihood of academic collaboration is influenced by specific characteristics that vary across attributes and associations. For instance, social networks have been found to influence the adoption of evidence-based instructional practices and interdisciplinary research performance. This study examines research collaboration practices at a university to support initiatives in increasing interdisciplinary collaboration. Purpose: The study has three aims: 1) to characterize existing collaborative research practices under the university systems and policies in effect at the start of this project in a sample of faculty researchers; 2) to gain a better understanding of the historical network structure of research using collaborative grant …

The Functional Dynamics Of Bacterial Communities In Relation To Environmental Selection And Host Health In A Pitcher Plant Model System, Jessica Rae Bernardin

Boise State University Theses and Dissertations

Our research investigates the function and composition of microbial communities across various conditions, shedding light on microbial community dynamics and plant-microbe interactions. Despite the crucial role microbes play in Earth's ecosystems, many questions remain about how microbiomes function and their direct impact on host health.

The first chapter explores the links between bacterial community function and the growth of purple pitcher plants (Sarracenia purpurea). We introduced three distinct bacterial communities into sterile pitchers to assess their effects on plant health. Different bacterial functions influenced plant traits, with communities rich in decomposition and secondary metabolite production traits leading to significantly larger …