Digital Commons Network^™

Preventing And Managing Equine Gastric Ulcer Syndrome, Kylie Bell, Karl Hoopes

All Current Publications

Current industry trends regarding equine management practices largely contribute to the development of equine gastric ulcer syndrome (EGUS). Research on effective medical management exists; however, we lack studies on the efficacy of equine-welfare-minded solutions. This fact sheet reviews current literature, including diagnosing, treating, and preventing EGUS. It also provides a general overview of the natural equine, promoting a greater understanding of the connection between strategies to prevent and manage EGUS.

Forest Defoliation By And Invasive Outbreak Insect: Catastrophic Consequences For A Charismatic Mega Moth, Richard L. Lindroth, Mark R. Zierden, Clay J. Morrow, Patricia C. Fernandez

Aspen Bibliography

Earth is now experiencing declines in insect abundance and diversity unparalleled in human history. The drivers underlying those declines are many, complex, and incompletely known. Here, using a natural experiment, we report the first test of the hypothesis that forest defoliation by an invasive outbreak insect compromises the fitness of a native insect via damage-induced increases in toxicity of the forest canopy. We demonstrate that defoliation by the invasive spongy moth (Lymantria dispar) elicits an average 8.4-fold increase in foliar defense expression among aspen (Populus tremuloides) genotypes. In turn, elevated defense dramatically reduces survivorship, feeding, and …

Dietary Milk Phospholipids Increase Body Fat And Modulate Gut Permeability, Systemic Inflammation, And Lipid Metabolism In Mice, Albert Lihong Zhou, Robert E. Ward

Nutrition, Dietetics, and Food Sciences Faculty Publications

The study aimed at how dietary milk polar lipids affect gut permeability, systemic inflammation, and lipid metabolism during diet-induced obesity (DIO). C57BL/6J mice (n = 6x3) were fed diets with 34% fat as energy for 15 weeks: (1) modified AIN-93G diet (CO); (2) CO with milk gangliosides (GG); (3) CO with milk phospholipids (MPL). Gut permeability was assessed by FITC-dextran and sugar absorption tests. Intestinal tight junction proteins were evaluated by Western blot. Plasma cytokines were measured by immunoassay. Body composition was assessed by magnetic resonance imaging. Tissue lipid profiles were obtained by thin layer chromatography. Hepatic expression of genes …

Wild Parsnip (Pastinaca Sativa) Identification And Control In Residential Landscapes, Michael Caron, Taun Beddes, Corey Ransom

All Current Publications

Wild parsnip is a weed that can potentially cause serious injury to gardeners. This fact sheet describes this weed, its lifecycle, and suppression and control options.

Malivhu: A Comprehensive Bioinformatics Resource For Filtering Sars And Mers Virus Proteins By Their Classification, Family And Species, And Prediction Of Their Interactions Against Human Proteins, David Guevara-Barrientos, Rakesh Kaundal

Computer Science Student Research

COVID 19 pandemic is still ongoing, having taken more than 6 million human lives with it, and it seems that the world will have to learn how to live with the virus around. In consequence, there is a need to develop different treatments against it, not only with vaccines, but also new medicines. To do this, human-virus protein-protein interactions (PPIs) play a key part in drug-target discovery, but finding them experimentally can be either costly or sometimes unreliable. Therefore, computational methods arose as a powerful alternative to predict these interactions, reducing costs and helping researchers confirm only certain interactions instead …

Managing Equine Metabolic Syndrome, Abigail Meldrum, Karl Hoopes

All Current Publications

Equine metabolic syndrome (EMS) is a relatively new disease that we are still learning about. There are many things to investigate when dealing with a new disease: causes, predispositions, symptoms, secondary issues, treatments, and prevention. Because changing the animal's feed regimen is currently the most effective and well-known way to manage EMS, this fact sheet focuses primarily on how diet can impact affected horses. As a newer syndrome, it is vital to learn as much as possible about it to understand, treat, and prevent this disease.

Body Length Determines Flow Refuging For Rainbow Trout (Oncorhynchus Mykiss) Behind Wing Dams, Terry R. Dial, Laura A. Collins, James C. Liao, Bret W. Tobalske

Environment and Society Faculty Publications

Complex hydrodynamics abound in natural streams, yet the selective pressures these impose upon different size classes of fish are not well understood. Attached vortices are produced by relatively large objects that block freestream flow, which fish routinely utilize for flow refuging. To test how flow refuging and the potential harvesting of energy (as seen in Kármán gaiting) varies across size classes in rainbow trout (Oncorhynchus mykiss; fingerling, 8 cm; parr, 14 cm; adult, 21 cm; n = 4 per size class), we used a water flume (4,100 L; freestream flow at 65 cm s^-1) and created …

Estimation And Control Of Dynamic Mass-Moment Parameters For Spacecraft Attitude Simulator, Oleksii Padun, Ye Lu

Small Satellite Conference

Spacecraft attitude testbed has been a popular platform for the development, testing, and validation of real-time attitude determination, estimation, and control, algorithms. The focus of this paper is the development of a dynamic mass moment estimation algorithm and an automatic mass balancing control system with numerical validations. Two estimation layers are implemented: one for attitude estimation and another for mass-moment parameter estimation. Attitude estimation follows the existing literature of quaternion estimators with a nonlinear Kalman filter. Dynamic mass-moment parameter estimation is formulated as batch estimation with a nonlinear filter. The initialization process of the EKF parameter estimator is enhanced by …

Variation In Orbital Lifetime For Cubesat Launch Initiative Missions, Liam Cheney, Creg Raffington, Caley Burke

Small Satellite Conference

No abstract provided.

Development Of A Methodology For Optimizing Satellite Durability By Coupling Advanced Orbit Propagation With High Fidelity 3d Thermal-Electrical Simulation, Corey D. Packard, Logan R. Canull, Zachary J. Edel, Timofey Golubev, Michael L. Larsen, Nate Mccoun

Small Satellite Conference

In the rapidly evolving landscape of low Earth orbit (LEO) satellite technology, this study presents a pioneering approach for analyzing satellite durability through advanced orbit propagation and high fidelity 3D thermal-electric simulation. Small satellites, packed with high power components and rapidly transitioning between sunlit and eclipsed orbit segments, often feature limited thermal control systems that make thermal management a challenging (but critical) task. Additionally, the durability of battery cells and photovoltaic (PV) panels over the mission lifetime of small satellites is an important concern. Cycling and calendar fade take their toll on battery lifetime, and PV degradation reduces operational efficiency …

A Data-Efficient Model-Based Task Decomposition Approach For Massive Satellite Constellations, Benjamin Cooper, John Grimes, Michael Planer, Letitia Li, Daniel Wallach, Hooman Sherkat-Massoom, Alex Fox, Alessandro Monteros, Ryan Mohr, Maria Fonoberova, Lael Rudd

Small Satellite Conference

The rapid development and launch of low-cost satellites have led to constellations of hundreds of satellites, the proliferated Low Earth Orbit (p-LEO) constellation, and has changed the dynamic of space-based earth observation. The availability of massive numbers of satellites creates the opportunity to tackle larger scale problems, such as larger scale monitoring of wildlife, illegal fishing, and climate events. These opportunities must be met with increasing automation, preferably using an approach that executes and adapts on-orbit.

Optimizing distributed resources remains an astronomically challenging problem, even more so when computations are performed on the comparatively compute restricted hardware of satellites. We …

Evaluating The Cost Of Gain And Financial Returns Of Cattle Fed Hydroponically Produced Barley Fodder, Lex Peterson

All Graduate Reports and Creative Projects, Fall 2023 to Present

Hydroponically produced fodder continues to garner attention as a feed source within livestock production. This attention in part is due to a belief that hydroponically produced fodder is more efficient in its use of inputs such as water when compared to conventional feeds. Water efficiency is especially appealing in areas like the Intermountain West region of the U.S where water availability is often constrained. This analysis looks to understand how using hydroponically produced barley fodder to finish steers compares economically to finishing steers on a nutritionally equivalent conventional finishing ration. To do so, a stochastic simulation model is constructed to …

Desire As A Framework For Adaptation: Examining Aku No Hana As An Unconventional Adaptation Of Les Fleurs Du Mal, Zoe Dalley

All Graduate Reports and Creative Projects, Fall 2023 to Present

In this project, I began by arguing that the 2009 to 2014 manga series Aku No Hana by author and artist Shūzō Oshimi should be considered an unconventional adaptation of the 19th century collection of poems Les Fleurs Du Mal by French poet Charles Baudelaire. I then turned my analysis to the practice of adaptation more broadly, using desire, a central theme to both of my chosen primary texts, as my lens through which I examined some of the central complexities and paradoxes inherent to adaptation, such as the simultaneous expectation of textual faith and a new authorial vision. I …

Leveraging Generative Ai For Sustainable Farm Management Techniques Correspond To Optimization And Agricultural Efficiency Prediction, Samira Samrose

All Graduate Reports and Creative Projects, Fall 2023 to Present

Sustainable farm management practice is a multifaceted challenge. Uncovering the optimal state for production while reduction of environmental negative impacts and guaranteed inter-generational assets supervision needs balanced management. Also, considering lots of different factors (cost, profit, employment etc), the agricultural based management technique requires rigorous concentration. In this project machine learning models are applied to develop, achieve and improve the farm management techniques. This experiment ensures the resultant impacts being environment friendly and necessary resource availability and efficiency. Predicting the type of crop and rotational recommendations will disclose potentiality of productive agricultural based farming. Additionally, this project is designed to …

Contrasting Management Styles And Differing Outcomes Of Capping And Orphaning Of Utah Oil And Gas Wells By Conditions And Land Types, Maxwell C. Parson

All Graduate Theses and Dissertations, Fall 2023 to Present

The issue of public lands management and ownership in the West has long been contentious. This thesis takes a quantitative approach examining outcomes of the rates at which oil and gas wells in the state of Utah are orphaned and/or capped. Findings indicate that orphanings occur at a statistically significant higher rate on state owned land as opposed to federal and private, and wells on tribal land have no recorded orphaning. No other variables were significant in their relationship to orphaning. The proposed explanations for this disparity are two-fold: First the longer periods of inactivity permitted by the state simply …

Method Development For The Extraction And Analysis Of Per- And Polyfluoroalkyl Substances (Pfas) In Wastewater And Biosolids, Victoria Krull

All Graduate Theses and Dissertations, Fall 2023 to Present

Per and poly-fluorinated alkyl substances (PFAS) are manufactured chemicals that have water and grease repellant properties and do not readily biodegrade. PFAS are present in many consumer products and end up in waste systems and the environment. Studies have shown that PFAS can have adverse health effects on humans and animals.

There are many challenges to processing and analyzing samples containing PFAS including: adsorption of PFAS to equipment, contamination from equipment containing PFAS, and the high sensitivity needed to analyze for PFAS in the parts per trillion detection range. The United States Environmental Protection Agency (EPA) has been developing methods …

Effect Of Nutrient And Temperature Conditions On The Production Of Microcystins From Cyanobacteria In Pineview Reservoir, Brent G. Jacobson

All Graduate Theses and Dissertations, Fall 2023 to Present

Cyanobacteria, sometimes known as harmful algae, are an aquatic bacteria capable of producing toxic compounds. Cyanobacteria are found worldwide in both saltwater and freshwater environments. Depending on the environment, toxic cyanobacteria species can outcompete other aquatic species, grow in large numbers, and produce these toxic compounds. Further understanding of what environmental conditions promote the production of these harmful bacteria and toxins is needed to protect and inform the public.

In order to understand why cyanobacteria produce toxins in certain environments, samples containing cyanobacteria were taken from a Pineview Reservoir, Utah, and cultured at the Utah State Water Research Laboratory. Cyanobacteria …

A Framework To Unveil Design Decisions In Ecological Urbanism, Addison C. Martin

All Graduate Theses and Dissertations, Fall 2023 to Present

Ecological urbanism offers a framework for landscape architecture to address the challenges posed by dynamic infrastructure projects in the face of changing climates and human impacts. As Nature-based Solutions (NbS) become more prevalent, the role of aesthetics in these solutions becomes increasingly important. However, there has been a lack of systematic approaches to assess the design aesthetics of landscape architecture in practice. This study aims to fill this gap by providing a rapid assessment framework tailored for landscape architecture practitioners. Drawing from the concepts of regenerative design and ecological urbanism, the framework comprises three sections: Ecological Function (EFx), Anthropocentric Function …

Microbiome Assembly And Function In The Solitary Mason Bee, Osmia Lignaria (Megachilidae), Bailey Crowley

All Graduate Theses and Dissertations, Fall 2023 to Present

Animal-microbe interactions can influence host biology, ecology, and evolution. The assembly and function of microbes found within animal hosts oftentimes depends on which species are involved. Advances in sequencing technologies have permitted the exploration of host-microbe interactions in a variety of animals, including bees. Early research aimed at understanding the microbiomes of social bees, such as honey bees and bumble bees, found that microbes prevent the spoilage of stored pollen, breakdown indigestible nutrients into smaller molecules available for uptake by the host, and also protect the host from pathogens. When environmental stressors, such as increased temperatures, disrupt the microbiome, the …

The Interactions Between Drought Tolerant Corn Hybrids And Plant Water-Stress On Weeds And Their Host Capability For Spider Mites, Mercy Adhiambo Odemba

All Graduate Theses and Dissertations, Fall 2023 to Present

With climate change, it is predicted that more frequent high temperatures and drought severity will lead to an increase in damage caused by pests that thrive under these conditions. Spider mite outbreaks, for example, are associated with plant waterstress and there is evidence that some weeds are more resilient and adapted to drought than some crops, leading to major concerns for the management of these two pest types. Weeds directly compete with crops for limited resources, but what is unclear is which weeds harbor spider mites and whether they exacerbate the impact of spider mites on corn crops under water-stressed …

California Condor Feeding Habitat, Vigilance, And Competition With Avian Scavengers In Southern Utah, Usa, Alex Blanche

All Graduate Theses and Dissertations, Fall 2023 to Present

Independent foraging is needed for the reintroduction of a species to be successful, but it can cause cascades in interconnected ecological communities. California condors (Gymnogyps californianus) were reintroduced to the Colorado Plateau in 1996, and the population has continued to grow with yearly releases of captive individuals. However, little is known about foraging behavior of condors and their potential competitors. Carrion is a risky food source, and there is a tradeoff between vigilance and feeding. Altering behavior can maximize caloric intake while minimizing risk. Here, I investigate habitat selection, vigilance, and interspecific interactions among condors, golden eagles ( …

An Examination Of The Effects Of Prey Density, Mortality, Nutrients, And Foraging Tradeoffs On A System With Inducible Defenses: An Empirical And Theoretical Approach, Benjamin C. Ralston Daniel

All Graduate Theses and Dissertations, Fall 2023 to Present

To grasp the functioning and stability of ecosystems, it is important to understand species interactions. With many ecosystems becoming more imperiled from urbanization and anthropogenic influences it is important to understand ways in which species can adapt to rapid changes in their environment. Phenotypic plasticity is one such tool at nature’s disposal to initiate rapid change, where species with the same genetic makeup can have different expressed traits depending on their environment. Inducible defenses are one such form of phenotypic plasticity in which prey can express different levels and forms of defense depending on the threat of predation present in …

Effects Of Winter Ticks (Dermacentor Albipictus) On The Reproduction Of Utah Moose (Alces Alces Shirasi), Samuel D. Robertson

All Graduate Theses and Dissertations, Fall 2023 to Present

Moose (Alces alces) are the largest and only solitary members of the deer family. The species can be found across many northern regions around the world. Moose are considered to have high intrinsic, recreational and ecological value. In recent years, there have been concerns about declining moose populations in portions of the species circumpolar range. Moose in Utah (Alces alces shirasi) belong to the Shiras subspecies, which is the smallest of the four subspecies found in North America. Utah moose are the southernmost naturally occurring moose population in the world. The Utah Division of Wildlife Resources …

An Examination Of Inclusion Of Secondary Students With Disabilities In One Local School District, Brandon Brown

All Graduate Theses and Dissertations, Fall 2023 to Present

This survey was designed to examine the role of inclusion in a secondary school setting in one school district. The survey attempted to measure the attitudes, and opinions of general education school teachers, special education school teachers, administrators, and the parents of a student with a disability. The survey determined that most opinions agreed that students with disabilities deserved to be included in classes and extracurricular activities but what that would look like was different in all groups. Opinions even varied when looking at what the exact definition of inclusion was. Results from the survey showed opinions that teachers and …

Healing Through Caring And Knowledge-Making In Everyday Food Practices Among Lgbtq+ Black, Indigenous, People Of Colour, Elizabeth Grace Wong

All Graduate Theses and Dissertations, Fall 2023 to Present

Three different models are used in this study to understand how everyday food practices carry healing potential through the interwoven process of caring and knowledge-making. Daily food practices reflect a mixture of tradition and modernity— borne out of our roots and our contexts. Anzaldúa’s (1987) Borderland Theory helps us understand how this mixture is made by people who straddle two borders or worlds and contest those confines. Chavez-Dueñas et al.’s (2019) HEART model names strengthening our cultural and familial traditions and roots as part of the broader processes of building cultural consciousness and connection, and engaging in collective healing. Finally, …

Socially Valued, Ecologically In Decline: Place Attachment Influences Support For Management Actions In A Quaking Aspen Forest Impacted By Recreation, Soil Contamination, And Ungulates, Georgie Corkery

All Graduate Theses and Dissertations, Fall 2023 to Present

Quaking aspen (Populus tremuloides Michx.) spark strong emotional attachments among many people, yet they are ecologically in decline across North America. Aspen landscapes are also popular outdoor recreation destinations. Site-specific strategies are required for both managing for healthy aspen landscapes and enhancing the outdoor recreation experience. Our study investigated a highly-recreated and ecologically declining aspen forest in Summit County, Utah facing population decline. There were two distinct phases of data collection. First, we evaluated the condition of the aspen and identified potential management actions that could improve the condition of the aspen. Second, we surveyed people who visited the site …

To Pot Or Not To Pot: Understanding Technological Investment In Ceramics And Marine Mammal Oil Rendering In Kodiak, Alaska, Elizabeth Groat

All Graduate Theses and Dissertations, Fall 2023 to Present

Why do groups choose to use certain technologies, but not others? This study focuses on an especially confusing instance of this question: the adoption of pottery in Kodiak, Alaska. This event was strange for two reasons. First, by AD 1500, when Alutiiq ancestors in the Kodiak Archipelago began making pottery, their neighbors on the mainland had already been doing it for centuries—so why did they wait so long? Second, pottery is also only found in the south of the islands—so why did some people use it, but not others? Whale and seal are more abundant in southern Kodiak, so one …

Citizen Science Project On Urban Canids Provides Different Results From Camera Traps But Generates Interest And Revenue, Neville F. Taraporevala

All Graduate Theses and Dissertations, Fall 2023 to Present

As more people live in cities, wildlife increasingly encounters people. Coyotes (Canis latrans) and red foxes (Vulpes vulpes) are two carnivores that have easily adapted to urban environments causing them to come into conflict with people and their pets. Citizen science, where members of the community aid scientists in the collection of data, has emerged as a low-cost method of studying these species that can provide benefits to management agencies but may provide different results than traditional methods. We analyzed data collected by citizen scientists and data collected via motion-triggered camera traps to see how each …

Sparks, Belonging, And Relationships: High School Teachers' Use Of Developmental Context To Engage Students In Career Pathways, Dave Francis

All Graduate Theses and Dissertations, Fall 2023 to Present

The 4-H Thriving Model outlines how a foundation for youth sparks, belonging, and relationships can lead to short and long-term outcomes. This study explored how high school teachers in Utah integrate the elements of the foundation of the 4-H Thriving Model in environmental science and natural resources management classroom teaching. A mixed method of interviews and surveys was used to understand teaching practices. Teachers described helping students discover their interests (sparks), nurturing these interests, and linking them to careers using methods like guest speakers, field trips, contests, and student presentations. They also worked on creating a sense of belonging in …

From Inbreeding To Admixture: How The Diverse Consequences Of Gene Flow Shape Evolutionary Dynamics And Population Viability, Amy L. Springer

All Graduate Theses and Dissertations, Fall 2023 to Present

When Homo sapiens traveled out of Africa and interbred with the Neanderthals of Europe, human genes spread into the Neanderthal population. Likewise, genes from Neanderthals spread into the human genome—genes humans still carry to this day. The process whereby genetic material from one population is spread to another is known as gene flow. Gene flow—or the absence thereof—can have critical consequences for a population’s health and survival. On one hand, if no gene flow occurs, mating among close relatives can lead to high levels of inbreeding. Inbreeding can have devastating consequences for the health of populations, in some cases even …