Digital Commons Network^™

Influence Of Hydrologic History On Nitrogen Cycling In Lake Sediments, Emily Jainarain

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water quality is declining in freshwater lakes around the world due to environmental change and anthropogenic activities that threaten the physical, ecological, and geochemical integrity of freshwater ecosystems. Excess N and P in lakes can cause eutrophication, a major driver of water quality impairment that leads to excessive algal growth, or harmful algal blooms (HABs), and poses risks to recreation, fisheries, and public drinking water. Water level fluctuations in lakes are expected to become more frequent and intense as climate change increases periods of drought and alters precipitation patterns, and fluctuations may stimulate biogeochemical reactions in littoral sediments that add …

Centering Indigenous Knowledge: Reimagining Research Methods, Pedagogies, And Sustainability With Niitsitapi Awaaáhsskataiksi (Blackfoot Elders), Sandra Bartlett Atwood

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

My research sought to better engage with Indigenous ways of knowing and being (IWKB). Specifically, I collaborated with Blackfoot Elders (and Hawaiian Kupuna) to better understand 1) their perspectives towards land, 2) what factors instigate and perpetuate these perspectives, 3) how these perspectives play out in terms of identity; well being; daily life; education; environmental concern, behavior, and stewardship, and 4) ways that these perspectives towards land can inform and transform Western perspectives on land and perhaps lead to better and more equitable social-ecological outcomes. I approached this from three angles. First, I described a method for braiding Indigenous and …

Similarities And Differences In Correlates And Trends In Prescription Stimulant And Prescription Opioid Misuse Among College Students, Julie Murray

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

When used as medically intended, prescription opioid and stimulant medications can have therapeutic benefits. Misuse of these medications, however, presents significant health risks, including increased risk of death and injury. Young adults, ages 18 to 25, have the highest rates of misuse of prescription opioids and stimulants nationally and within this age group, college students may be particularly at risk. This two-study dissertation explored factors related to prescription opioid and prescription stimulant misuse in college students in order to assess similarities and differences in correlates and trends.

Study #1 assessed for similarities and differences in correlates of prescription opioid misuse …

Overcoming Barriers To Aquatic Plant Restoration: Addressing Gaps In Species Identification And Planting Techniques In The Intermountain West, Kate A. Sinnott

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Aquatic ecosystems provide many critical and economically valuable benefits, including drinking water, food, recreational opportunities, and water supply for irrigation and agriculture. However, the health of these systems has been severely impacted by human activities such as pollution, land conversion, and introductions of harmful species. Restoring native aquatic plants can help reverse this damage and reestablish benefits, though it is not a common practice. With an objective to increase capacity for aquatic plant restoration in the Intermountain West, I identified and addressed two major barriers: 1) a lack of confidence in aquatic species identification among wetland professionals, and 2) underdeveloped …

Effects Of Soil Amendments On Water Quality And Hydrologic Properties In Low Impact Development Systems, Lily Wetterlin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Low impact development (LID) systems are practices that use natural elements, such as soils and vegetation, to absorb and filter stormwater to protect water quality and aquatic habitats. Many LID designs use native soils; however, urban soils typically have a limited potential for infiltrating and treating stormwater. Incorporation of soil amendments, such as compost and biochar, into LID soils can improve the physical properties of soil. However, soil amendments may increase or decrease pollutants in the water leaving the site. A comparison of the effects of different types and application rates of amendments on water quality is necessary to determine …

Stem Usu Libraries Orientation, Katie Strand, Erin Davis, Sandra Weingart, Katie Luder

All E-Learning Resources

Attention: As of 2026 updated versions of this module will no longer be available on Digital Commons. Please contact [email protected] for more information.

An introduction to library resources and services available to students in STEM programs at Utah State University.

Utahns Are Becoming More Likely To Say Human-Caused Climate Change Is Happening, Jessica D. Ulrich-Schad, Jennifer E. Givens, Peter D. Howe, Cole Lancaster

Utah People and Environment Poll (UPEP)

Scientists who study the earth’s climate overwhelmingly agree that human activities are causing rapid change¹ . Most Americans also agree that global warming is happening (74%) and caused by humans (61%)² . However, the same research finds that about one in eight (12%) of Americans do not think global warming is happening. This indicates that despite scientific consensus, some Americans remain skeptical about whether climate change is real and if humans are the cause.

Utahns Support Tribal Engagement In Climate Change Initiatives And Land Management, Kirsten Vinyeta

Utah People and Environment Poll (UPEP)

Utah is home to eight federally recognized Tribes whose ancestral territories overlap with public lands managed by state and federal agencies. As sovereign nations, federally recognized Tribes hold government-to-government relationships with the federal government and are on equal footing with states.¹ In fact, the federal government is legally mandated to protect tribal treaty rights, lands, and resources.² Among the mechanisms to protect tribal interests is government-to-government consultation, in which tribal leaders are formally engaged by federal and state officials to provide policy guidance.³

"God Put It Into My Heart": Omen-Seeking And Divine Communication Narratives In Contemporary American Protestantism, Emma Crisp

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This project examines omen-seeking practices within Protestant Christianity in the U.S. Intermountain West. It collates and analyzes the results of ethnographic research into the ways that mainline Protestants experience, interpret, and talk about their personal spiritual experiences. The project finds that divinatory and other omen-seeking practices exist in this context but are not recognized or discussed as divinatory due to the conflation of divination with sortilege and the prevalence of prayer as the primary solicitation method for Protestant forms of augury. Emic categories of omen are distinguished not through generation method (such as the solicited/unsolicited distinction proposed by Tom Mould), …

Understanding Factors Influencing Electric Vehicle Adoption: Evidence From Panel Data Analysis, Ryker Brian

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This paper investigates the factors influencing the adoption of electric vehicles (EVs) using panel data from California. The analysis employs a panel data model with within effects to examine the relationship between EV adoption rates and various socio-economic factors. The continued analysis gives out-of-sample forecasted results for the 4 counties with the highest share of electric vehicles registered in 2021. Additionally, the paper explores the influence of supply-side issues and complementary infrastructure on EV adoption. An introduction to Hidden Markov Methods is then given as the next step in the research.

General Catalog 2023-2024, Utah State University

University Catalogs

This catalog contains information on the Academic Departments and Programs as well as Course Descriptions for the above school year at Utah State University. To avoid large file downloads, the Academic Departments and Programs information is located in this file. The Course Description information is located in the secondary file.

A Case For Educational Communication On Sustainable Stormwater Management Sites Using Interpretive Methods: Applications For Utah State University, Lilian Taft

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Humans are increasingly urbanizing landscapes, lowering the land’s ability to infiltrate stormwater, increasing surface water runoff. This, combined with decreasing water availability in the Intermountain West, produces the issue of sustainable stormwater management. Professionals are moving toward green stormwater infrastructure (GSI), but public is often not aware of stormwater’s impacts on natural environments or what the purpose of GSI is. Stormwater management design techniques are evolving to use visible, sustainable methods celebrating stormwater, rather than treating the valuable resource as a disposable nuisance, channeling it underground and out of sight. Artful Rainwater Design (ARD), a technique coined by Stuart Echols …

Empowering All Students To Participate: Utilizing Aac To Respond During Lessons, Robbie Cromwell

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Previous research indicates that frequent and active participation of all students (including diverse student groups) improves student outcomes, as does using a variety of methods to respond during classroom instruction. Current research is limited in examining two key areas: 1) Increasing active participation of AAC users by encouraging engagement through frequent response opportunities during instruction and 2) Utilizing a variety of response methods to enable participation during instruction. Given the gaps that exist in the research, the purpose of this study is to examine whether incorporating a variety of opportunities to respond has an impact on AAC user’s engagement and …

Student Veteran Innovation Workshop: Exploring Purpose-Driven Camaraderie, David Brian Kartchner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There 1 million veterans enrolled in higher education in the U.S., and we know relatively little about them. In this work, the term student veteran refers to both former and current military service members. Most of the small body of literature on student veterans is focused on perceived issues found within this population, rather than the strengths they bring to their academic experience. In recent years, academic work has emerged that advocates a shift to looking at the positive traits of the student veteran community. Building on the emerging strength-based perspectives, the concept of purpose-driven camaraderie among student veterans introduces …

Quantifying The Impacts And Assessing The Permeability Of A Divided Four-Lane Highway On Migratory Mule Deer, Daniel P. Taylor

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Increased human development and expansion has led to an ever-growing transportation network, which has both direct and indirect ecological impacts to local wildlife populations. In response, wildlife crossing structures have become an increasingly fundamental component of wildlife conservation throughout the United States. The focus of this study was a 13.5 km section of US Highway 395, Mono County, California. The California Department of Transportation recently identified this section of highway, hereafter known as the Mammoth Wildlife Crossing, as the highest priority location for wildlife crossing structures along US 395 within Mono County. The goal of this study was to use …

Co-Creating Culturally Inclusive Climate Change Programming: A Qualitative Study With Indigenous Populations In Southeast Utah, Bayli R. Hanson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study explores the impact of climate change on underrepresented communities, particularly Indigenous populations in the Colorado Plateau region, and the negative effects on their cultural identities and traditional practices. Despite their knowledge and connection to the land, Indigenous communities are experiencing climate change at a more extreme rate due to their geographical location and the lasting impacts of settler colonialism. The study aims to better understand Indigenous perspectives of climate change, co-create a climate change curriculum with Indigenous populations in southeastern Utah, and apply it to an Indigenous-centric field experience. By incorporating traditional ecological knowledge and Western science practices, …

Precise Determination Of Charge Distributions In Electron Irradiated Polymers Via Pulsed Electroacoustic Measurements With Applications To Spacecraft Charging, Zachary Gibson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Understanding how charge builds up and moves around in materials that are highly insulating, such as dielectrics, is important for many applications from power transmission to spacecraft charging. The leading cause of issues in spacecraft due to interactions with the space environment is spacecraft charging. That is, the accumulation of charge on insulating materials leads to arcing and sparking aboard the spacecraft. The most critical charging occurs due to electrons in a particular energy range of 10-50 keV. Electrons with these energies can travel 1’s to 10’s of microns into relevant materials. To measure where the charge is embedded and …

Water Conservation Through Drought-Resilient Landscape Plants And Deficit Irrigation, Ji-Jhong Chen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Increases in urban population and inadequate rainfall result in imbalanced water budgets in urban and sub-urban regions. Water conservation becomes important in urban landscapes because of increased water demands. Modern landscape designs require drought-resistant plants to maintain urban landscape greenness during water scarcity. Irrigating plants at their irrigation requirements, which is the minimum irrigation rate that can achieve acceptable aesthetic quality, can also conserve water. However, the drought tolerance and irrigation requrements of most landscape plants have not been widely evaluated. Shepherdia ×utahensis ‘Torrey’ (‘Torrey’ buffaloberry) and Penstemon species (beardtongues) are low-water-use landscape plants, but their drought resistance mechanisms are …

Exploring Body Image Related Cognitive Fusion As A Maintenance Mechanism Of Eating Disorder Pathology, Jennifer L. Barney

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Eating disorders are serious mental health conditions that can have serious negative effects on a person’s physical and mental well-being. These disorders are typically complex, and individuals are often struggling with one or more comorbid mental health problems, making them difficult to treat. To address this complexity and hopefully improve treatment outcomes for those with eating disorders, psychology research examining individual differences that appear to be related to differential treatment responses is needed. Better understanding how these factors relate to each other can help treatment providers identify the treatment methods most likely to work best for a specific individual based …

Evaluating The Effects Of A Teacher-Implemented Mindfulness-Based Intervention On Teacher Stress And Student Prosocial Behavior, Mary L. Phan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

High levels of teacher stress have a negative impact on teacher performance, maintenance, and student outcomes. Given the escalation in teacher stress levels, it is important to decrease teacher stress to improve their wellbeing. One intervention that has received growing attention in reducing teacher stress is mindfulness training. However, few studies have focused on teachers implementing mindfulness-based interventions (MBIs) both with themselves and with school-age children within their classrooms. Additionally, few studies have examined the fidelity, feasibility, and social validity of teacher-implemented MBIs in a classroom setting. Through a single-case multiple baseline design across four teachers, the current study evaluated …

Contextualization Of El Salvador’S Need For A Powerful Executive: A Lockean Analysis Of Nayib Bukele's Approach To Public Security In A Historical, Political, And Social Synthesis, Manuel Agresio Girón Alemán

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

For most of the three decades that have presided over the Salvadoran Civil War, El Salvador has been a state tormented by high levels of crime, especially the country's homicide rate, a product of the strong presence of criminal organizations such as MS-13 and 18th Street Gang. The current president of El Salvador, Nayib Bukele, who took office in 2019, has declared war on gangs under a state of emergency where the human rights of suspected criminals are violated, particularly their due process guarantees. This has caused Bukele’s government to draw strong condemnation and criticism from foreign governments and human …

Consumption Of A Western Diet Enhanced Colitis-Associated Colorectal Cancer And Dysbiosis Of The Fecal Microbiome In Mice Notwithstanding Dietary Intervention Or Fecal Microbiome Transfer, Daphne Michelle Rodriguez Jimenez

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In a rodent model of inflammation-associated colorectal cancer, consumption of a Western-style diet increases gut inflammation and enhances risk of developing colon tumors. The goal of this dissertation was to understand the contribution of bacteria within the large intestine on colon inflammation and colon tumorigenesis. Two pre-clinical animal studies were performed using two different intervention strategies to shift the microbiome, and potentially gut inflammation and tumor development: 1) an experiment using dietary supplementation with black raspberries, a functional food enriched in bioactive anthocyanins with purported antiinflammatory activity, and 2) an experiment using fecal microbiota transfer from mice fed a healthy …

Multispecies Genomic Sex Identification Using Ddx3 Gene Polymorphisms, Jessica Felts

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

PCR sex determination assays must be reliable and cost effective due to the frequent and integral use of these assays in biological research and the animal production industry. Thus, the design of proof of a primer pair with a built-in control is warranted to not only bypass the extra cost of a multiplex reaction, but also to prevent anomalous results that have been documented with other primer pairs.

The objective of this study was to design primer pairs with built in PCR amplification control to identify sex in Equus caballus (domestic horse), Homo sapiens (humans), Macaca mulatta (rhesus macaque), and …

Development Of Large-Scale Pseudo-3d Shear Wave Velocity Models At The Garner Valley Downhole Array Site, Isabella Corey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In order to design structures that can withstand anticipated earthquake loads, it is first necessary to understand the behavior of the subsurface when subjected to ground motions. To achieve this, different models and approaches have been proposed in recent decades, each with the aim of estimating how site-specific stratigraphy can amplify and/or scatter seismic waves. All of these methods require, to varying extents, information about the types of soil layers, their thickness, their stiffnesses (represented by a shear wave velocity profile), and lateral variability across the site. This last characteristic is often both difficult and costly to determine. Past research …

Telehealth Acceptance And Commitment Therapy For Adolescents With Transdiagnostic Health-Related Anxiety: A Randomized Controlled Trial, Julie M. Petersen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Health-related anxiety is a growing issue to understand how to treat, particularly following the COVID-19 pandemic. Some studies show that a specific type of therapy, acceptance and commitment therapy (ACT), may be beneficial for health anxiety in adults, but this has not yet been tested with adolescents. The present study is a randomized, waitlist-controlled trial of ACT delivered via Zoom for adolescents struggling with health-related anxiety. A total of 30 adolescents (ages 12-17), plus one caretaker each (N = 60), living in Utah and currently struggling with health-related anxiety were enrolled. The majority of caretakers and adolescents were White, non- …

Cislunar Navigation Techniques And Navigation Performance Optimization, Quinn P. Moon

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nova-C is a lunar lander developed by the private company Intuitive Machines to deliver commercial payloads to the Moon. The IM-1 mission set for 2023 will launch and land the Nova-C near the Moon's south pole. In this research, various navigation techniques are explored to determine the lander's position and velocity during key segments. This process is studied for key mission events including trajectory correction maneuvers (TCMs), lunar orbit insertion (LOI), and descent orbit insertion (DOI). Each mission segment, referred to as an Orbit Determination Segment (OD), is analyzed with three different navigation techniques: Monte Carlo Analysis, Linear Covariance Analysis, …

An Interval-Valued Random Forests, Paul Gaona Partida

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There is a growing demand for the development of new statistical models and the refinement of established methods to accommodate different data structures. This need arises from the recognition that traditional statistics often assume the value of each observation to be precise, which may not hold true in many real-world scenarios. Factors such as the collection process and technological advancements can introduce imprecision and uncertainty into the data.

For example, consider data collected over a long period of time, where newer measurement tools may offer greater accuracy and provide more information than previous methods. In such cases, it becomes crucial …

Act And Veterans: A Multiple Baseline Study Using Act To Treat Anxiety Disorders In U.S. Military Veterans, Jeremiah E. Fruge

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There are 18 million Americans, roughly 7% of the population, who are Veterans. In contrast with the general population, Veterans have a high likelihood of exposure to psychological harm during their military service. For example, studies indicate Veterans are diagnosed with anxiety disorders in some cases four times higher than in the general population, though few studies examine treatment. Military culture is an additional factor which is important to account for when treating Veterans. For example, within the military an emphasis is placed on values and committed action which may mean this population will benefit more from certain therapies than …

Development Of The Digital Signal Processing For The Space Weather Probes Version 2 Sensor Using The Matlab/Simulink Environment, Benjamin J. Lewis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Space Weather Probes (SWP) is an instrument that provides measurements of the plasma environment of the ionosphere. SWP was flown on the Scintillation Prediction Observation Task (SPORT) mission, a joint mission between the United States of America and Brazil. This thesis will develop the digital signal processing (DSP) hardware design for the Space Weather Probes version 2 (SWP2). The data from these instruments will be used to determine the density and temperature of the local plasma, as well as the electric field in the local plasma. This thesis presents the design and testing of the DSP designs for all of …

Happy Or Sad? Quaking Aspen (Populus Tremuloides Michx.) On Cedar Mountain, Southern Utah, Jaycee Cappaert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

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 surveyed in 2008. We found that the area comprised of stable aspen (>80% aspen) decreased from 84.3% to 69.7%. The amount of mortality has increased slightly over the last decade, but crown dieback has stayed virtually identical. Additionally, the …