Digital Commons Network^™

Effects Of Light Intensity On Algae Biofilms In Rotating Algae Biofilm Reactors (Rabr), Joshua D. Wintch

All Graduate Theses and Dissertations, Fall 2023 to Present

There is a growing need for economically and ecologically friendly wastewater treatment processes. Utilizing natural algae biofilms to remediate excess nitrogen and phosphorus from municipal wastewater is a treatment technique of academic interest. Utilizing natural algae in rotating algae biofilm reactors (RABR) is a potential engineering application of algae biofilms for municipal wastewater anaerobic digestor effluent treatment. The ideal reactor operation would use sunlight as the light source for algae growth, however, there is little academic research on algae biofilm growth productivity across natural sunlight light intensity ranges. This research seeks to understand the relationship between rotating algae biofilm reactor …

Deterring Gray Zone Activity In A Strategic Flashpoint: U.S. Freedom Of Navigation Operations And China’S Maritime Militias, Joseph D. Potter

All Graduate Theses and Dissertations, Fall 2023 to Present

In today’s complex world, nations often use irregular forces, such as militias, to achieve political goals without escalating conflicts. This study examines how the United States of America uses its Navy’s Freedom of Navigation Operations in the South China Sea to influence the behavior of Chinese maritime militias. These militias are involved in activities such as harassment, assault, and other aggressive or deceptive actions. By analyzing data from 2012 to 2024, this research discovered 239 incidents and discovers that these militias reduce their confrontational activities during Freedom of Navigation Operations to avoid direct conflict while continuing their broader objectives in …

Measuring Support In Couple Relationships: The Psychometrics Properties Of The Couple Support Behavior Questionnaire, Jacqueline Johnson

All Graduate Theses and Dissertations, Fall 2023 to Present

Couple support, a unique form of social support, as defined in this thesis is the felt sense of being upheld, valued, lifted up, and empowered by your romantic partner, during both times of distress and success. In this master’s thesis, I used secondary data provided by Dr. Ryan Seedall and conducted statistical analyses to develop a new measure, the Couple Support Behavior Questionnaire (CSBQ). Using data from 443 individuals who had all been in a relationship for at least three years and were all above the age of 18, I used statistical methods to shorten and provide a 19-item measure, …

Quantifying The Threshold For Fragmentation Of Newtonian And Non-Newtonian Drops, Aditya Parik

All Graduate Theses and Dissertations, Fall 2023 to Present

This dissertation investigates how the properties of liquid drops influence the minimum aerodynamic forces needed to cause the drop to fragment (breakup). For this work, we focus only on aerodynamic forces that are applied on a stationary drop by a sudden, uniform flow, a process called impulsive acceleration. Previous studies have largely focused on the fragmentation of spherical drops of Newtonian fluids (liquids with constant viscosity, like water), when impulsively accelerated in air-like ambient medium. Such systems only capture a limited range of drop and ambient properties (described by non-dimensional groups). Many real-world applications, such as aerial fire retardant delivery, …

The Impact Of General And Religious/Spiritual Minority Stressors On Lgbtq Spiritual Health, Adlyn Perez-Figueroa

All Graduate Theses and Dissertations, Fall 2023 to Present

A great deal of research has focused on the impact of minority stress on the mental and physical health of lesbian, gay, bisexual, transgender, and queer (LGBTQ) individuals, but little is known about how minority stress impacts spiritual health. The purpose of this study was to develop a new theory of LGBTQ spiritual health. Another purpose was to explore how the impact of minority stress, such as discrimination, differs in everyday settings vs religious/spiritual (R/S) settings. A total of 227 LGBTQ participants were recruited online using a Prolific Survey Panel. Multiple regression analyses were used to determine: (a) if minority …

Optimizing Nutrient Recycling To Achieve Zero–Discharge Management For Controlled Environment Agriculture, Noah James Langenfeld

All Graduate Theses and Dissertations, Fall 2023 to Present

Controlled environment agriculture (CEA) allows for human control of one or more environmental factors affecting crop production. Optimizing nutrient management in such systems allows for translation and predictions of sustainable management strategies in the field. These systems will be used to supply fresh food as public and private space agencies are planning to send humans to the Moon and Mars in the near future. Food resupply becomes increasingly difficult as the distance from Earth increases. Plants can be grown off-Earth as a food source, but their growth must be carefully managed to ensure long-term sustainability. I describe a model used …

A Survey Of Master's Qualifying Exam Practices And Content In Real Analysis, Zachary M. Coverstone

All Graduate Theses and Dissertations, Fall 2023 to Present

Graduate programs in mathematics are intended to develop experts in mathematics. As part of a graduate program, many students are expected to engage in a qualifying examination that can serve myriad purposes. This dissertation investigates real analysis qualifying examinations at the master's level through a nation-wide survey of institutions in the Association of Public and Land-Grant Universities (APLU). This study reveals the practices in administration of real analysis qualifying exams, institutions reported offering traditional, pencil-and-paper exams and generally asked students to prepare individually using previously administered exams. The survey results show that approximately two in three APLU institutions offering master's …

Color Expressions In Euripides’ Ion, Erik Shelley

All Graduate Theses and Dissertations, Fall 2023 to Present

This analysis explores color expressions in the play Ion by the ancient Greek playwright Euripides. Because the ancient Greeks experienced color differently, I examined words used in the play, including light, dark, fire, green, water, blood, and gold. These expressions imply different themes and concepts that Euripides uses to portray the duality between his two main characters, Ion and Creusa. This thesis showed how the mother-son pair acts as a foil for the different aspects of color found throughout the play that reflect ancient Greek culture.

Determining The Structure And Function Of Type Iv-A Anti-Crisprs, Olivine Redman

All Graduate Theses and Dissertations, Fall 2023 to Present

Bacteria face a constant existential threat in the form of infection by viruses along with other forms of mobile genetic elements, such as bacteriophage and transposable elements. To survive, bacteria and other prokaryotes have evolved various immune systems to evade these would-be invaders. One such immune system is the CRISPR-Cas system, an adaptive immune system able to record the genetic signature of invading viruses in order to recognize and destroy them should they be encountered again in the future. In this thesis I present data that sheds light on the mechanism of one particular subtype of CRISPR-Cas systems: the type …

The Desert Shall Rejoice: Lds Relational Values And Multispecies Justice In The Intermountain West, Sarah A. Woodbury

All Graduate Theses and Dissertations, Fall 2023 to Present

In the American West, climate change is shifting weather and climate patterns in ways that may dramatically change lands, livelihoods, and communities. In the face of these threats, conservationists and local communities must work collaboratively to ensure that environmental and human communities are healthy enough to weather approaching shifts. Church of Jesus Christ of Latter-day Saint (LDS) values, practices, and histories strongly influence the Intermountain West, yet there is little research on LDS environmental values and perceptions. This study seeks to answer questions that work in this gap. It documents the knowledge and values of communities in the Intermountain West …

Second Nature: Nurturing Stewardship Through Ecological Presence, Tyler Hansen

All Graduate Theses and Dissertations, Fall 2023 to Present

Environmental education is essential for preparing students to address today’s ecological challenges. However, many educational approaches focus primarily on individual behavior (e.g., personally conserving water) rather than broader systemic solutions. This research highlights that gap through a review of environmental education and introduces a new framework for designing and evaluating environmental education. This framework aims to help students explore their relationship with the environment in locally relevant and place-based ways. By applying this framework in rural Hawaii, this study examines how students perceive their roles within ecological systems and compares different curricular approaches to see how students’ understanding evolves. This …

Utah State University Commencement, 2025 – Main Campus, Utah State University

Commencement Programs

2025 Commencement Ceremony for the Main Campus of Utah State University.

Utah State University Commencement, 2025 – Blanding Campus, Utah State University

Commencement Programs

2025 Commencement Ceremony for the Blanding Campus of Utah State University.

The Overcome Project: Overall Perspective And Progress, Jean-Robert Courivaud, Mark W. Morris, Maxime Boucher, Laurent Del Gatto, Christophe Picault, Kamal El Kadi Abderrezzak, Rafael Morán Moya, Miguel Angel Toledo

5th International Seminar on Dam Protections Against Overtopping

The OVERCOME project is an applied research project that aims to provide the dam and dike engineering profession with an easy-to-use, physically based numerical tool that represents overtopping erosion and failure of homogeneous embankments made up of coarse-grained, gap-graded soils. This project began in 2018 and is scheduled for completion in 2028, and was initiated by EDF and CNR, who are the two main owners of embankment dams in France. To achieve this objective, the OVERCOME project is based on an extensive program of experimental tests of various dimensions. The interpretation of these tests will be used to define a …

Data-Driven D Region Model (D3r) Svdd: Software Version Description Document (Svdd), James Vincent Eccles

Space Dynamics Laboratory Publications

This is the Software Version Description Document of the Data-Driven D Region (D3R) model. There are 2 main distributions: (a) D3R designed for containerized deployments (D3Rc) and (b) D3R designed for testing and development. These two distributions are maintained in parallel, and this document describes both. The D3R for containerization is typically provided to customers. The D3R model is a physics-based model for calculating electron density profiles across the D Region ionosphere altitudes (50 km to 95 km) and E Region altitudes (95 km to 120 km) for any given geolocation. The model has two main programs: one to solve …

"We Had An Amazing Idea, But Then Someone Already Had It": Norming "Novelty" In Early Childhood Computer Science (Poster 31), Deborah Silvis, Ana Ashineh, Jody Clarke-Midura, Jessica Shumway

Spatial Activities and Robot Coding (SPARC)

https://aera25-aera.ipostersessions.com/Default.aspx?s=BF-36-33-8A-0D-DF-81-2C-B8-C6-4F-C6-21-5F-A2-FC

Crop Water Productivity: Within-Field Spatial Variation In Irrigated Alfalfa (Medicago Sativa L.), Keegan Hammond, Ruth Kerry, Ross Spackman, April Hulet, Bryan G. Hopkins, Matt A. Yost, Neil C. Hanson

Plants, Soils, and Climate Faculty Publications

In this study, alfalfa (Medicago sativa L.) is evaluated for suitability of variable rate irrigation (VRI) by analyzing within-field variation in crop water productivity (CWP) under uniform irrigation. The objectives were to (1) measure within-field variation in crop evapotranspiration (ET), (2) quantify spatial variability of alfalfa biomass yield, and (3) assess whether a bivariate analysis of CWP and yield could inform VRI management zones. Research was conducted on a 22.6 ha center-pivot irrigated alfalfa field near Rexburg, Idaho, USA, over three harvest intervals (HIs) in 2021 and 2022. Using a water balance method at 66 field points, ET exhibited …

Discovering The True Meaning Of Federalist No. 27, Mckenzie Pedersen-Campbell

Student Research Symposium

Background

Three of the Founding Fathers wrote the Federalist Papers in order to gain support for and explain the new system of government.

• The Federalist Papers provide valuable insight into the original meaning of the Constitution.

• Supreme Court Justices often look to the Federalist Papers when making decisions but do not always come to the same understanding.

• In Printz v. United States (1997), both the Supreme Court’s majority and dissenting opinions used Federalist No. 27 to support their arguments.

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Are Logan Police Officers Equipped To Deal With Domestic Disturbances Effectively, Jaden Baugh

Student Research Symposium

If officers do not have proper training to deal with domestic violence, then they become ineffective tools to help the public. We as the public need officers to keep the peace but if there is improper training they are ineffective

Where Is The Contemporary Design?, Anna Nelson

Student Research Symposium

Contemporary Design can be described as Design that is reflective of current trends and attitudes in design, specifically post-modern aesthetics and approaches that move beyond past stylistic and theoretical choices, even though it may be referential to the past.

Determining The Function Of Type Iv-B Crispr-Cas Systems, Eric Jenkins, Brendon Guinn

Student Research Symposium

CRISPR-Cas systems are a diverse group of prokaryotic adaptive immune systems that defend against Mobile Genetic Elements (MGEs) such as bacteriophages and plasmids. CRISPR-associated (Cas) proteins bind to guide RNAs (crRNAs) transcribed from a DNA repeat array (CRISPR array) containing spacers complementary to MGEs. Upon infection by a MGE, the Cas protein-crRNA complex binds to the target sequence in the invaders genome and cleaves the nucleic acid.

Faculty Senate Agenda March 31, 2025, Utah State University

Faculty Senate & Faculty Senate Executive Committee

• 3:00 Call to Order
• Approval of Minutes March 3, 2025
• 3:05 University Business
• 3:20 Faculty Senate Business
• 3:35 Information
• EPC Report - March 6, 2025
• 3:40 Report
• Budget and Faculty Welfare Committee
• Sustainability Council
• Policy 323, 378, 389
• 4:00 Old Business
• 4:05 New Business
• 2025-2026 Calendar and Committee Reports
• President-Elect Nominations
• Adjourn: 4:30 pm

The Utah Statesman, March 31, 2025, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Contrasting Effects Of Climate Warming On Hosts And Parasitoids: Insights From Rocky Mountain Aspen Leaf Miners And Their Parasitoids, Alisha A. Shah, Emily Hamant, Juan G. Rubalcaba, Beau Larkin, Andrew A. Forbes, H. Arthur Woods

Aspen Bibliography

Because temperature has pervasive effects on biological rates, climate warming may alter the outcomes of interactions between insect hosts and their parasitoids, which, for many host species, constitute the single largest source of mortality. Despite growing interest in parasitoid-host responses due to climate change, there are few empirical tests of thermal tolerance differences between non-model lepidopteran hosts and their parasitoids and almost none from mountain ecosystems where warming is occurring more rapidly. We examined the thermal ecology of a host–parasitoid interaction in the Rocky Mountains using the wild populations of the aspen leaf miner (Phyllocnistis populiella) and a …

Community-Oriented Policing In A Majority-Black Neighborhood: In Search Of A Local Solution To A National Problem, Nasaskyia R. Hicks, Shanada Mcfadden, Natallia Sianko

Transforming Communities

Few issues loom larger today than how the United States can rehabilitate its criminal justice system. Although justified and undoubtedly timely, the national focus often shifts attention away from local, interpersonal, and community processes that shape how criminal justice is administered and experienced differently in communities across the country. Our goal is to contribute to the national conversation on community-oriented policing and social innovation to improve police-community relations and increase public trust in majority-Black neighborhoods. This article offers a call to action for the scientific and policy communities to reflect on effective practices that bring the voices of local stakeholders …

Bryce Canyon Aspen: Recent Trends, Future Actions, Paul C. Rogers

Aspen Bibliography

In cooperation with Bryce Canyon National Park, we undertook a survey of quaking aspen (Populus tremuloides Michx.) conditions throughout the Park with the intention of better understanding conditions and prescribing corrective measures where needed. There are clear disparities within the Park between sustainable aspen conditions and failing stands. Based on condition of mature trees, but most importantly regeneration and recruitment of juvenile stems, most aspen forests within Bryce Canyon are in poor condition. Aspen recruitment—generally sapling-sized trees that have survived browsing ungulates—is the most important metric of future stand resilience and here we found 83% of all aspen sample …

Familiar New Histories: Promenade Theatre And Local Amateur Actors In A Creative Heritage Project, Jayne Gold

Theatre Arts Faculty Publications

Building upon previous work in the creative heritage sector, in this paper I analyse A Time Traveller’s Guide to Theatrical Brecon, a promenade production funded by the National Lottery Heritage Fund, performed on the streets of Brecon in mid Wales, UK in 2021. The performance involved local amateur actors from Brecon Little Theatre and was accompanied by a map and educational resources and workshops for local schools. It brought to life stories from Brecon’s theatre history for its local residents. Brecon Little Theatre members created and performed the promenade performance, creatively engaging with historical material to write, direct, rehearse, …

An Alternative To Biliverdin, Mesobiliverdin Ixα And Mesobiliverdin-Enriched Microalgae: A Review On The Production And Applications Of Mesobiliverdin-Related Products, Naveena Poudyal, Jon Y. Takemoto, Yuan-Yu Lin, Cheng-Wei T. Chang

Chemistry and Biochemistry Student Research

Despite attracting interest for decades due to its anti-inflammatory and antioxidant capabilities, the use of biliverdin IXα (BV) in medicine and agriculture is hampered by uncertain purity and limited availability. A significant amount of effort has been devoted to the production and application of BV, but with limited success. Mesobiliverdin IXα (MBV), a natural BV analog derived from microalgae, offers a path to overcome the limitations of BV. MBV production is scalable, and it can be obtained at high purity. MBV and BV share important structural features (e.g., bridging propionate groups) and both are substrates of biliverdin reductase A (BVRA), …

Solar Flare Prediction Using Multivariate Time Series Of Photospheric Magnetic Field Parameters: A Comparative Analysis Of Vector, Time Series, And Graph Data Representations, Onur Vural, Shah Muhammad Hamdi, Soukaina Filali Boubrahimi

Computer Science Student Research

The purpose of this study is to provide a comprehensive resource for the selection of data representations for machine learning-oriented models and components in solar flare prediction tasks. Major solar flares occurring in the solar corona and heliosphere can bring potential destructive consequences, posing significant risks to astronauts, space stations, electronics, communication systems, and numerous technological infrastructures. For this reason, the accurate detection of major flares is essential for mitigating these hazards and ensuring the safety of our technology-dependent society. In response, leveraging machine learning techniques for predicting solar flares has emerged as a significant application within the realm of …

Faculty Senate Executive Committee Agenda, March 17, 2025, Utah State University

Faculty Senate & Faculty Senate Executive Committee

• 3:00 Call to Order
• Approval of Minutes - February 18, 2025
• 3:05 University Business
• 3:20 Faculty Senate Business
• 3:35 Information
• EPC Report - March 6, 2025
• 3:40 Report
• Budget of Faculty Welfare Committee
• Sustainability Council
• Policy 323, 378, 389
• 4:00 Old Business
• 4:05 New Business
• 2025-2026 Faculty Senate Calendar
• Adjourn: 4:30 pm