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Modulation Of P3 And The Late Positive Potential Erp Components By Standard Stimulus Restorativeness And Naturalness, Salif P. Mahamane

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Tests of attention restoration theory (ART) consistently support that exposure to restorative environments can replenish finite cognitive resources, needed to focus attention, from a depleted state. These environments are usually natural, but the dimensions of naturalness and restorativeness are not one and the same, and yet have not been empirically delineated. The restorative effect has been documented in children and adults. However, neuroscientists have barely begun to test for neural correlates of ART. In this dissertation, I employ electroencephalography (EEG) to record electrophysiological brain activity during an active visual oddball task to capture and analyze p3 elicitation and late positive …

The Role Of Carbonate Minerals In Arsenic Mobility In A Shallow Aquifer Influenced By A Seasonally Fluctuating Groundwater Table, Jeremy Jensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Arsenic (As) is a poison historically used to great effect before modern detection methods rendered it obsolete. However, the largest mass poisoning in human history occurred due to groundwater in the Bengal Basin contaminated by natural sources of As. Since that time, research has determined that As is found in groundwater worldwide. This includes aquifers located in basin-filled valleys of the western United States. One of these valleys is the Cache Valley Basin located in Northern Utah. This semi-arid region contains carbonate-rich soils and is heavily influenced by snowmelt and seasonal runoff. Previous studies have found that 15% of private …

Transient Thermal Modeling Of Bioprocessing Equipment, Cody M. Cummings

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Bioprocessing is leveraging cells to produce high value, lifesaving products. Precise environmental control is needed to maintain integrity of the bioprocessing production process. Temperature control requires both appropriate equipment choice and correct control parameter selection. To aid in the equipment selection process, enable better understanding of equipment capacity, and enable optimization of control parameters, a transient thermal model of both heat transfer characteristics and control systems was created in silico.

Orson Pratt And The Expansion Of The Doctrine And Covenants, Brian C. Passantino

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Church of Jesus Christ of Latter-day Saints is a faith that is distinguished by its religious texts. The nickname "Mormon," that has been applied to adherents of the faith, comes from the name of its most cherished canonical book, the Book of Mormon. Aside from the Bible and the Book of Mormon, Latter-day Saints accept two other books of scriptures – the Pearl of Great Price and the Doctrine and Covenants. These four books constitute the authorized scriptures of the faith, or as they refer to them, "the standard works."

My thesis focuses on the book entitled the Doctrine …

Teaching Students To Communicate With The Precise Language Of Mathematics: A Focus On The Concept Of Function In Calculus Courses, Derrick S. Harkness

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The use of precise language is one of the defining characteristics of mathematics that is often missing in mathematics classrooms. This lack of precision results in poorly constructed concepts that limit comprehension of essential mathematical definitions and notation. One important concept that frequently lacks the precision required by mathematics is the concept of function. Functions are foundational in the study undergraduate mathematics and are essential to other areas of modern mathematics. Because of its pivotal role, the concept of function is given particular attention in the three articles that comprise this study.

A unit on functions that focuses on using …

Cultural Ecosystem Services Of Agroecosystems Along The Wasatch Front, Utah, Tiffany K. Woods

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Agroecosystems, including peri-urban systems, are important providers of a range of services. However, management of these systems has generally been based on the market value of crops, neglecting to capture the broader public goods that ecosystem services provide to stakeholders. While the ecosystem service framework (Millennium Ecosystem Assessment [MEA], 2005) has been adopted to measure the market and non-market values associated with these services, knowledge gaps persist, particularly with respect to the quantification and valuation of cultural ecosystem services (CES). In this paper, the determination of CES values assigned to agroecosystems by residents of two communities along the Wasatch Front, …

An Economic Comparison Of Two Leading Aquaponic Technologies Using Cost Benefit Analysis: The Coupled And Decoupled Systems, Grace M. Gibbons

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Aquaponics is an agricultural production practice which combines aquaculture, the raising of fish, and hydroponics, a soil-less crop production method, to create a system that symbiotically produces both. Compared to conventional open-field agriculture, this practice is highly resource efficient in terms of water and land usage, but has yet to be widely adopted due to a lack of research regarding its economic feasibility. This study compares the two most economically promising aquaponic system designs to determine which would be more profitable at the intermediate-commercial scale. The first of these is the coupled system which continuously circulates water in a closed …

Storm-Time Equatorial Thermospheric Dynamics And Electrodynamics, Luis A. Navarro Dominguez

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

We present the first complete study of the dynamics of the equatorial upper atmosphere (180-350 km) during periods of strong magnetic activity driven by the Sun, which are generally referred as geomagnetic storms. These storms have the potential to considerably affect satellite-based communications and navigation systems among other severe technological challenges. We used large databases of two of the most important parameters at these altitudes, which are the velocities of the neutral and ionized gas (plasma) referred to as neutral winds and plasma drifts. These measurements were acquired in the Peruvian equatorial region by the Jicamarca radar and by a …

A Brief Online Acceptance And Commitment Training For Enhancing Outcomes Of A Cultural Competence Intervention, Elizabeth Tish Hicks

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In an increasingly diverse and multicultural society, there is a pressing and practical need for interventions to help professionals improve their cultural competence. Cultural competence trainings that target psychological flexibility in addition to knowledge, awareness, and skills may produce more efficacious results. The current study will examined the utility of targeting psychological flexibility (the ability to maintain contact the present moment and current internal experiences and to choose contextually appropriate, values-consistent behaviors, regardless of what one’s internal experiences are) as a process to enhance the impact of a cultural competence intervention with an Acceptance and Commitment Training (ACT)-enhanced cultural competence …

Advancing Water Resources Systems Modeling Cyberinfrastructure To Enable Systematic Data Analysis, Modeling, And Comparisons, Adel Mohammad Kheir Abdallah

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water resources systems models aid in managing water resources holistically considering water, economic, energy, and environmental needs, among others. Developing such models require data that represent a water system’s physical and operational characteristics such as inflows, demands, reservoir storage, and release rules. However, such data is stored and described in different formats, metadata, and terminology. Therefore, Existing tools to store, query, and visualize modeling data are model, location, and dataset-specific, and developing such tools is time-consuming and requires programming experience. This dissertation presents an architecture and three software tools to enable researchers to more readily and consistently prepare and reuse …

Boron In The Pariette Wetlands, Uinta Basin, Ut, Palak Vasudeva

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Boron is a naturally occurring mineral in shale and coal beds formed in marine environments, as found in the Uinta Basin. Mining activity and the application of excess irrigation water on agricultural lands in the Pariette watershed lead to mobilization of B via surface run off. Water quality monitoring records from 2006- 2009 reported violations of Utah B standard for irrigation water 43-100% of the time, for water flowing through the Pariette Wetlands. This study aims to determine B distribution in abiotic (water, sediments) and biotic samples (macroinvertebrates, aquatic vegetation, fish, bird eggs), and to establish correlations between B concentrations …

Architecture Of Engagement: Autonomy-Supportive Leadership For Instructional Improvement, Travis N. Thurston

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This multiple paper dissertation addresses the importance of improving student success in online higher education programs by providing support for instructors. The autonomy-supportive structures to improve instructional practice are explained through three main domains, including instructional development, instructional design, and instructional practice. The first paper addresses instructional leadership with the theoretical foundations and practical considerations necessary for instructional leaders. Recommendations are made to use microcredentials or digital badges to scaffold programming using self-determination theory. The second paper addresses the importance of instructional design in improving instructional practice including the intentionality involved in implementing a gamification strategy to improve online student …

Psychosocial Effects Of Shared Book Reading, Amy Halling

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many studies have examined the academic benefits of parents reading with their children, but few studies have looked at the psychological and social benefits, and even fewer have related the quality of shared book reading to psycho-social benefits. This study looked at whether positive and negative reading interactions during shared book reading predicted parent-child relationships, child social skills and child academic skills. Twenty-five parents of 4-year-olds read a story with their child and completed parent relationship and child social skills questionnaires. The reading interactions were then coded into two separate composite scores: positive and negative. Positive interactions did not significantly …

Effect Of Plant Derived Tannins On Nitrogen And Carbon Cycling In Pasture Soils, Kathryn A. Slebodnik

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Pasture-finished beef has become increasingly popular, but nitrogen losses from these pastures are of concern. Legumes containing condensed tannins such as birdsfoot trefoil (Lotus corniculatus) and sainfoin (Onobrychis viciifolia) may serve as environmentally and economically viable alternative forages in pasture finishing systems while reducing soil nitrogen loss. The goal of this project was to understand how tannin type and concentration affects soil nitrogen cycling both in the lab and the field. This thesis: 1) compared the physical, chemical, and biological characteristics of soil samples obtained from grazed grass and tannin and non-tannin containing legume pastures, 2) …

Some Examples Of The Liouville Integrability Of The Banded Toda Flows, Zachary Youmans

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Toda lattice is a famous integrable system studied by Toda in the 1960s. One can study the Toda lattice using a matrix representation of the system. Previous results have shown that this matrix of dimension n with 1 band and n‚àí1 bands is Liouville integrable. In this paper, we lay the foundation for proving the general case of the Toda lattice, where we consider the matrix representation with dimension n and a partially filled lower triangular part. We call this the banded Toda flow. The main theorem is that the banded Toda flow up to dimension 10 is …

Benchmarking Of A Mobile Phone Particle Image Velocimetry System, David Armijo

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

One of the most important tools in a fluid dynamics laboratory is a particle image velocimetry (PIV) system. This system can measure the speed of a fluid flow simply by taking high-speed images of the motion of the fluid, then applying PIV cross-correlation software to calculate speed from the resulting images. The mI-PIV project is in the process of designing a new method of performing PIV by putting the cross-correlation software on a mobile phone application, called mobile Instructional PIV (mI-PIV). This system is an innovative stepping stone in making PIV systems more widely available. It is designed to be …

Gratitude In Adolescents: Examining The Role Of Attachment, Parental Gratitude, And Discounting, Savannah C. Rupp

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

From early childhood, parents often teach their children to use their manners by saying "Thank you"; however, are there any benefits from experiencing gratitude during youth? Understanding the relationship between gratitude and other areas, such as happiness and decision-making, can potentially help researchers in planning interventions for youth. The purpose of this study was to determine the relationship between gratitude and decision-making in youth, as well as the role of maternal gratitude and the mother-child attachment in determining gratitude in youth. Two hundred four participants (102 mothers, 102 adolescents) completed an online survey. Mothers and adolescents completed two gratitude questionnaires …

Novel Three-Dimensional Scaffold For Skeletal Muscle Tissue, Matthew H. Clegg

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Cells are traditionally grown on a flat, plastic surface that has been optimized for cell attachment. While this is appropriate for growing and maintaining cells, this two-dimensional cell culture model is not an adequate representation of a three-dimensional body. Creating three-dimensional lab models is an important step to model diseases and damage to the skeletal muscle system.

To create this three-dimensional environment, a plastic frame was designed to support silkworm fibers. Skeletal muscle cells were then grown along the silkworm fibers and the growth of these cells in a three-dimensional environment was compared to cells grown on a flat, two-dimensional …

Evaluating The Hydraulic Performance Of Digital Photogrammetry-Derived 3-Dimensional Models Of A Hydraulic Structure Using Computational Fluid Dynamics, Tyler J. Ashby

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This research investigated the combination of aerial imagery, photogrammetry, and computational fluid dynamics (CFD). Two 3D models of an 8-ft ramp flume were developed from aerial imagery using a commercial photogrammetry software. The GCP model was developed using ground control points (GCP) to improve and measure the model's accuracy. The Non-GCP model used GCPs as check points, which only measure the model's accuracy. The horizontal and vertical errors were, respectively, 0.39 in. and 0.73 in. for the GCP model, and 5.37 in. and 2.80 in. for the Non-GCP model.

In addition to the GCP and Non-GCP models, two hybrid 3D …

Thermal Modeling And Analysis Of Roadway Embedded Wireless Power Transfer Modules, Arden N. Barnes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wireless charging of electric vehicles is a developing technology which potentially increases efficiency and safety. It also allows for charging vehicles while they are moving by having charging stations embedded in the roadway. Because roadways are thermally insulating, it is important to know how the heat from the charging stations will move through the roadway, which will allow further research into whether the heat will cause damage to the components in the station or to the roadway. This thesis studies the way the heat moves through concrete with wireless charging coils embedded in it. This is accomplished by measuring the …

Reusable Light-Activated Antimicrobial Materials Prepared With Food Ingredients, Andrew T. Gagon

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Microbial contamination and proliferation in food processing, distribution and storage continues to be a real risk in spite the wide variety of food processing and preservation techniques available. Some of these techniques (such as heat treatments and the use of chemical preservatives) may require substantial amounts of energy and their effects in the general population and the environment may be harmful. This has generated an interest over alternative methods of food preservation. The use of reusable light-activated materials may represent an effective approach. In this study, a polypropylene plastic was modified with either zein, which is found in corn, or …

Cross-Boundary Stewardship For Wetland Integrity And Resilience In The Greater Rocky Mountain National Park Ecosystem, Meghan K. Tait

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Approximately half of the wetlands in Rocky Mountain National Park (RMNP) are degraded due to human disturbances that often occur beyond park boundaries. Like most protected areas, RMNP is part of a larger ecosystem with critical connections to surrounding lands. Therefore, more effective stewardship of wetlands within RMNP is likely to be achieved through cross-boundary cooperative efforts. Through interviews with wetland stewardship agencies and organizations and an analysis of their wetland plans and policies, barriers and opportunities for cross-boundary stewardship were identified, as well as common structures used to facilitate work across boundaries. Wetlands outside of RMNP are experiencing similar …

The Effects Of Different Organic Pastures On Dairy Heifer Growth And Development, Jacob A. Hadfield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Raising dairy heifers in a certified organic setting can be difficult for producers. Conventionally, heifers are raised in a confined setting, and fed a total mixed ration (TMR) that is balanced daily to contain all the needed nutrients for developing heifers. Organic producers can use a TMR in their operations, but due to high organic feed costs, many choose to raise their heifers in pasture-based systems. While pasture-based systems may lower costs, heifers on pasture commonly have lower rates of gain, which can be financially burdensome to producers. Grass-legume pastures may help improve rates of gain in heifers on pasture-based …

Indoor Source Localization Of Radio Frequency Transmitters Using Blind Channel Identification Techniques, Madison L. Rose

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Locating transmitters is a research area that is becoming increasingly relevant as technology advances. It is especially useful for determining the location of livestock, drones, keys, phones, tablets, etc. As a result of this push for locating devices, many algorithms have been developed to determine source locations. Most source location algorithms and techniques rely on a "line of sight", or a direct path between the source and the receivers to provide accurate results.

Indoor environments pose a challenge to locating transmitters due to the many surfaces that allow radio waves to interact (reflect, refract, and generally distort) with them. Because …

Influence Of Forage Diversity And Condensed Tannins On Livestock Foraging Behavior, Production And Environmental Impact, Sebastian P. Lagrange

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Eating a combination of forages with different chemistries (i.e., nutrients, beneficial compounds such as tannins) may enhance ruminant nutrition and reduce environmental impacts relative to eating single forages. I explored the influence of offering sheep and cattle all possible combinations of tanniferous (i.e., plants with tannins; birdsfoot trefoil, sainfoin) and non-tanniferous legumes (i.e., plants without tannins; alfalfa) or their monocultures on animal performance, behavior, and methane and nitrogen (N) emissions. Offering choices among these legumes to penned sheep improved intake and diet digestibility relative to feeding monocultures. Mixtures selected by sheep were better digested than mixtures containing equal parts of …

New World Mammarenaviral Hemorrhagic Fever Virus Determinants Of Infection And Disease, Brady T. Hickerson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Several New World mammarenaviruses (NWM) are able to cause life-threatening hemorrhagic disease in humans. These agents use human transferrin receptor 1 (hTfR1), the main protein involved in cellular uptake of iron, to infect cells. Furthermore, use of hTfR1 correlates with the ability of these viruses to cause severe disease in humans. The most prevalent pathogenic NWM is Jun√≠n virus (JUNV), which is the etiological agent of Argentine hemorrhagic fever (AHF).The pathogenesis of AHF is poorly understood. A cardinal feature of severe cases of AHF is a prolonged increase of serum interferon-a (IFN-a) concentration. This increase is hypothesized to play a …

Soil Health Assessment On Arid Rangeland Soils Impacted By Oil And Gas Exploration, Development, And Extraction, Justin Allred

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Oil and gas well pad reclamation in arid environments such as in the Uinta Basin of Utah, presents unique challenges, including remote locations, limited water, and elevated soil salinity and sodicity. Successfully reclaimed Plugged and Abandoned (P&A) well pads should resemble the surrounding rangeland once fully reclaimed. Revegetation of native species is the primary indicator of successful reclamation, but the lack of water makes it challenging to re-seed native plants, while trying to prevent the encroachment of invasive plant species such as Bromus tectorum (cheatgrass), Salsola tragus (Russian thistle), and Halogeton glomeratus (halogeton). Could successful reclamation be reflective of good …

Optimization Of Aileron Spanwise Size And Shape To Minimize Induced Drag In Roll With Correlating Adverse Yaw, Joshua R. Brincklow

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Most modern aircraft make use of modifying the main wing in flight to begin a roll. In many cases, this is done with a discrete control surface known as an aileron. The lift, drag, and moments for the wing are affected in part by the location and size of the ailerons along the length of the wing. The lift, drag, and moments can be found using a lifting-line theory that considers the circulation in airflow from many small sections of the wing. To minimize the drag due to lift on the wing, the ailerons must be optimized for the best …

Making A Decision On Ethical Decision-Making Models, Melanie K. Johnson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Those in the helping professions, like psychology, counseling, and social work, have numerous ethical guidelines and codes to dictate ethical behavior. These codes, while extensive, do not encompass all situations. When professionals find themselves in an ambiguous situation, it is called an ethical dilemma. Many of the professional organizations that create ethical codes also recommend the use of ethical decision-making models. Ethical decision-making models provide steps, or instructions, on how to make an ethical decision when presented with an ethical dilemma.

Little research has been done on ethical decision-making models, so it cannot be concluded that these models actually help …

The Power Of Mercy: An Examination Of Presidential Pardon Patterns, Stewart Ulrich

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Constitution gives the president the power of clemency, the ability to forgive crimes and release individuals from prison. There are no checks on this power, giving the president unilateral power. Are there any factors that constrain this power or affect it? I claim that the electoral manner in which a president comes into office helps determine how they will use the power. Presidents coming into power with enthusiasm and confidence of the people will issue more clemency, while those who come into power with less will have decreased levels of clemency. Additionally, with more media outlets to scrutinize their …