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Gas Phase Structure Characterization Of Host-Guest Systems Using Ion Mobility Spectrometry, Jamir Shrestha Apr 2022

Gas Phase Structure Characterization Of Host-Guest Systems Using Ion Mobility Spectrometry, Jamir Shrestha

Theses and Dissertations

This dissertation focuses on the investigation of gas-phase characteristics of cucurbituril host-guest systems using ion mobility spectrometry (IMS) and related techniques. Collision cross-sections (CCS) of alkylammonium complexes of cucurbit[n]uril (CB[n]) are measured to understand the allosteric interactions that induce conformational changes in the complex in the presence of metal cations on one of the portals of the cucurbit[6]uril (CB[6]) host. Cationic species on one CB[6] rim sterically force longer linear alkylammonium guests out of the cucurbituril cavity during complex formation. Similarly, rigid cucurbituril-metal complexes were studied using IMS to demonstrate the effect of long-range ion-neutral interactions on the gas phase …

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Effects Of Autonomy, Competence, And Relatedness On Employee Outcomes: A Literature Review, Joseph Wilson Apr 2022

Effects Of Autonomy, Competence, And Relatedness On Employee Outcomes: A Literature Review, Joseph Wilson

Student Works

Most business organizations understand that employees are an essential part of their success and as such, much research has gone into understanding the most effective ways of eliciting favorable employee outcomes. The self-determination theory (SDT) is one result of the extensive research that has been done on the topic. SDT suggests a relationship between positive employee outcomes and the satisfaction of employees’ three basic psychological needs (TBPN): autonomy, competence, and relatedness. This literature review was undertaken to examine empirical studies that have researched the ways psychological needs are satisfied, and the effects of the TBPN on employee outcomes in the …

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The Influence Of Thc, Opioids, And Age On The Plasticity Of Excitatory Inputs To Ventral Tegmental Area Gaba Neurons, Isaac Brent Ostlund Apr 2022

The Influence Of Thc, Opioids, And Age On The Plasticity Of Excitatory Inputs To Ventral Tegmental Area Gaba Neurons, Isaac Brent Ostlund

Theses and Dissertations

Adults exhibit significant differences in drug vulnerability, learning ability, and emotive processing than adolescents. Long-lasting synaptic changes, including long-term depression (LTD), can endure many hours and are believed to be key to encoding memories and persistent cognitive changes such as addiction. The ventral tegmental area (VTA) is the primary source of midbrain dopamine (DA) and is regulated by local inhibitory GABA neurons. GABA regulation can decrease, resulting in dis-inhibition of DA neurons and increased feelings of reward, learning, or salience attachment to memories. Endocannabinoids (eCBs) are signaling molecules that often result in synaptic plasticity changes, and the eCB system has …

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A Missing Piece In The K-12 Online Learning Puzzle: Professional Development For Online Teachers, Chad A. Turley Apr 2022

A Missing Piece In The K-12 Online Learning Puzzle: Professional Development For Online Teachers, Chad A. Turley

Theses and Dissertations

K-12 online learning continues to grow, and with it, the need for well-trained online teachers. This multiple-article dissertation explores K-12 online teaching professional development. A literature review describes research trends regarding unique strategies and competencies related to online teaching. It explores strategies such as acting as a facilitator, developing course knowledge, encouraging student engagement, interacting regularly with students, giving feedback, and developing time management skills. The literature review suggests that there is a lack of specific recommendations about what content should be covered and why professional development is beneficial for both teachers and students. Programs that incorporate online teaching professional …

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Always Running At Sunset, Amelia O'Neill Apr 2022

Always Running At Sunset, Amelia O'Neill

Theses and Dissertations

My thesis show includes paintings that depict scenes of the trails that my dog and I frequent in Utah. These paintings are a response to experiences I have in nature and explore my relationship with my dog and the surrounding flora and fauna along the local trails. The paintings include images of rocks, sticks, dirt, trails, dogs, clouds, and dried sunflowers in the wind. In addition to realistic depictions of nature, my paintings reflect on the psychological and emotional state of being in nature. The title of the show is Always Running at Sunset, which is meant to be taken …

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Effects Of Optical Configuration And Sampling Efficiency On The Response Of Low-Cost Optical Particle Counters, Brady Scott Hales Apr 2022

Effects Of Optical Configuration And Sampling Efficiency On The Response Of Low-Cost Optical Particle Counters, Brady Scott Hales

Theses and Dissertations

Hazards associated with air pollution motivate the search for technologies capable of monitoring individual exposure to gaseous pollutants and particulate matter (PM). A Low-cost Optical Particle Counter (OPC), costing less than 50 USD, is an example of such technologies. Currently, OPCs are widely used to measure the concentration of particle matter in ambient air. While these low-cost air quality sensors are widely available, the accuracy and precision of these devices is highly uncertain. Consequently, the purpose of this thesis is to present an analytical model of two generic, low-cost OPCs based on the Laws of Conservation of Mass, Momentum, and …

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Performing Italian Identity: Through The Plays Gemini And A View From The Bridge, Angela Dicarolo Moser Apr 2022

Performing Italian Identity: Through The Plays Gemini And A View From The Bridge, Angela Dicarolo Moser

Theses and Dissertations

"Italian Identity"is the set of values and beliefs performed daily, that are markers of what it is to be "Italian,"whether those carrying those beliefs live in Italy or not. The latter point became evident in the United States following the vast wave of Italian immigration during the late-19th and early-20th centuries. Italian identity has been greatly influenced by Catholicism and its centering of values and beliefs on the family, heavily defined Italian life in America. One principal mode for constructing and disseminating these values and beliefs among Italian Americans was through the theatre. This thesis provides a close reading of …

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Early Succession Following Prescribed Fire In Low Sagebrush (Artemisia Arbuscula Var. Arbuscula) Steppe, Jonathan D. Bates, Kirk W. Davies Apr 2022

Early Succession Following Prescribed Fire In Low Sagebrush (Artemisia Arbuscula Var. Arbuscula) Steppe, Jonathan D. Bates, Kirk W. Davies

Western North American Naturalist

We evaluated plant community succession following prescribed fire on Artemisia arbuscula var. arbuscula (Nutt.) McMinn (low sagebrush) steppe in southeastern Oregon. Treatments were “prescribed burned” (burn; fall 2012) and “unburned” (control) A. arbuscula steppe, and the study design was a randomized complete block with 4 replicates per treatment. Herbaceous yield and vegetation canopy cover and density were compared between treatments (2012–2020). Fire practically eliminated A. arbuscula and there was no recruitment of new plants in the first 8 years after burning. Herbaceous yield in the burn treatment was about double the control for most of the postfire period. Native perennial …

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Reviewers For 2021 Apr 2022

Reviewers For 2021

Western North American Naturalist

No abstract provided.

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Front Matter, Vol. 82 No. 1 Apr 2022

Front Matter, Vol. 82 No. 1

Western North American Naturalist

No abstract provided.

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End Matter, Vol. 82 No. 1 Apr 2022

End Matter, Vol. 82 No. 1

Western North American Naturalist

No abstract provided.

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The Relationship Between Traumatic Brain Injury And Disruptions In Heart Rate Variability And Heart Rate Variability Biofeedback: A Systematic Review, Leah D. Talbert Apr 2022

The Relationship Between Traumatic Brain Injury And Disruptions In Heart Rate Variability And Heart Rate Variability Biofeedback: A Systematic Review, Leah D. Talbert

Theses and Dissertations

Background: Traumatic brain injury is a significant public health problem. Heart rate variability is a potential modality to measure physiological dysfunction following traumatic brain injury to assist in determining recovery time and the relationship between traumatic brain injury severity and recovery. To date, a summary of the evidence across injury severities and the possible role of heart rate variability biofeedback in traumatic brain injury treatment is lacking but needed to determine potential clinical utility. Participants and Methods: We followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Systematic literature searches on CINAHL, Embase, PsycINFO, SPORTDiscus, and MEDLINE …

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Gradient-Based Wind Farm Layout Optimization, Jared Joseph Thomas Apr 2022

Gradient-Based Wind Farm Layout Optimization, Jared Joseph Thomas

Theses and Dissertations

As wind energy technology continues to mature, farm sizes grow and wind farm layout design becomes more difficult, in part due to the number of design variables and constraints. Wind farm layout optimization is typically approached using gradient-free methods because of the highly multi-modal shape of the wind farm layout design space. Gradient-free method performance generally degrades with increasing problem size, making it difficult to find optimal layouts for larger wind farms. However, gradient-based optimization methods can effectively and efficiently solve large-scale problems with many variables and constraints. To pave the way for effective and efficient wind farm layout optimization …

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Implementation Of An Api For And The Folding Of Fpga Routing Resource Graphs In Vtr, Ethan Steiner Rogers Apr 2022

Implementation Of An Api For And The Folding Of Fpga Routing Resource Graphs In Vtr, Ethan Steiner Rogers

Theses and Dissertations

FPGAs provide parallel computing that is fit for speeding up the computation of a large range of problems. Programming an FPGA involves a complex tool flow for which several CAD tools have been developed. These tools compute solutions to many problems such as packing, placement, and routing, which map a circuit design onto an FPGA. These computations require a great deal of memory, of which the Routing Resource Graph contributes the most of any individual data structure. If the RRGraph could be represented in a more compact manner, performance of the tool flow algorithms may be improved due to an …

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Parametric Models Of Maize Stalk Morphology, Michael Alan Ottesen Apr 2022

Parametric Models Of Maize Stalk Morphology, Michael Alan Ottesen

Theses and Dissertations

As the most produced grain crop world-wide, 5% of corn is lost due to stalk lodging (above-ground structural failure of the stalk near the roots). Current modeling methods lack the ability to manipulate the stalk architecture. In contrast, parameterized models enable advanced analyses such as sensitivity and optimization studies. This thesis advances previous work on a parameterized cross-sectional model of maize stalk morphology and investigates the validity of a parameterized three-dimensional model. The parameterized cross-sectional model is based upon previous work that approximated the cross-section of maize stalks using an ellipse plus principal components. Validation of the cross-sectional model was …

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Sub-Grain Characterization Of Slip Activity In Bcc Tantalum, Tristan Kirby Russell Apr 2022

Sub-Grain Characterization Of Slip Activity In Bcc Tantalum, Tristan Kirby Russell

Theses and Dissertations

BCC metals are commonly used throughout the world and understanding their deformation behavior, especially at the sub-grain level, is essential for their continued use in technological advancements. Correctly and confidently characterizing the active slip systems in BCC materials has been a difficult task throughout past research. The research described in this thesis utilizes high resolution digital image correlation (HRDIC) and relative displacement ratio (RDR) analysis to accurately characterize active slip systems in large grained BCC tantalum and provides new insights into dislocation nucleation sites, relative CRSS values for {110} and {112} slip systems, the correlation between GB transmission factors and …

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Flexural Strength And Behavior Of Timber-Concrete Composite Floors With Hexagonally Headed Self-Tapping Screw Shear Connectors, Benjamin David Arrington Apr 2022

Flexural Strength And Behavior Of Timber-Concrete Composite Floors With Hexagonally Headed Self-Tapping Screw Shear Connectors, Benjamin David Arrington

Theses and Dissertations

Timber-concrete composite (TCC) floor systems consist of a bottom layer of wood that is connected to a top layer of concrete using shear connectors. The shear connectors resist slip between the layers, thus allowing wood and concrete develop composite action when subjected to flexure. The objective of this study is to determine the flexural strength and behavior of TCC floor systems that consist of a cross laminated timber wood layer connected to a concrete top layer using hexagonally headed self-tapping screw shear connectors. To accomplish the objective, coupon specimens and full-scale TCC floor panels were tested, and a finite element …

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Physical Aspects Of Sexuality, Attachment, And Sexual Satisfaction, Chelsea Zollinger Allen Apr 2022

Physical Aspects Of Sexuality, Attachment, And Sexual Satisfaction, Chelsea Zollinger Allen

Theses and Dissertations

Healthy sexuality includes relational, emotional, and physical elements (Busby et al., 2021). However, there are gaps in what is known about the physical aspects of sexual relationships. Genital acceptance and physical sexual knowledge are two areas of physical relationships that may have an effect on the satisfaction of sexual relationships. Attachment, namely levels of anxious and avoidant attachment, is another factor that has been related to sexual relationships (Allsop et al., 2021; Bennett et al., 2019; Busby et al., 2020). Results from a dyadic sample of 515 couples who had been in a relationship for at least two years were …

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Developing The Next Generation Of Heterogeneous Catalysts: Metal-Organic Framework Thin Films And Their Derivatives, Hans Christian Anderson Apr 2022

Developing The Next Generation Of Heterogeneous Catalysts: Metal-Organic Framework Thin Films And Their Derivatives, Hans Christian Anderson

Theses and Dissertations

Metal-Organic Frameworks (MOFs) are an important class of materials that are gaining increasing relevance for many fields including energy storage, CO2 capture, photovoltaics, and catalysis. MOF mediated synthesis (MOFMS) is the decomposition of a MOF to form an amorphous carbon material decorated with metal nanoparticles. MOF thin films are an area where MOFMS has not been thoroughly explored, yet they are likely to be industrially relevant due to their potential application as highly dispersed, sinter resistant supported catalysts. In this work, we have developed a method for the growth of copper- and zinc-based MOF thin films on silicon- and aluminum- …

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A Vaccine Education Module For University Students: Vaccine Concerns And Knowledge Gained, Joslyn D. Wilson Apr 2022

A Vaccine Education Module For University Students: Vaccine Concerns And Knowledge Gained, Joslyn D. Wilson

Theses and Dissertations

Purpose: The purposes of this research are to evaluate the effectiveness of a vaccine education module (VEM) in 1) contributing to new vaccine knowledge of university freshmen; and 2) identifying common vaccine concerns of university freshmen before and after completing the VEM. Methods: A VEM, including information about vaccine-preventable diseases, benefits of vaccines, principles of community or herd immunity, and where to go to get vaccinated, was created for freshman students. Student vaccine concerns were identified using a pretest/posttest quasi-experimental design using an online questionnaire before and after completing the VEM. After the VEM, participants were also asked to identify …

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Cherry Red Greenwashing: The Rhetoric Behind Corporate Recycling Narratives, Jessica Wallace Haws Apr 2022

Cherry Red Greenwashing: The Rhetoric Behind Corporate Recycling Narratives, Jessica Wallace Haws

Theses and Dissertations

As the public becomes more aware of environmental issues, corporations are pressed to consider and address the sustainability of their practices. Unwilling to drastically change business models, many corporations turn to greenwashing in an attempt to construct an environmentally friendly image while doing little to nothing to address sustainability issues. Using Kenneth Burke's work on identification and terministic screens, I analyze The Coca-Cola Company's "2020 World Without Waste Report" to illuminate how consumers come to believe in and identify with corporate greenwashing tactics. In line with Burke's theories related to identification, I argue that Coca-Cola's greenwashing strategies can be categorized …

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Atg9a And Atg13 Cooperate To Drive Basal Autophagy, Daniel Morgan Poole Apr 2022

Atg9a And Atg13 Cooperate To Drive Basal Autophagy, Daniel Morgan Poole

Theses and Dissertations

Autophagy, as the name suggests, is a cellular process of self-eating in which cytoplasmic debris is engulfed by a double membrane vesicle dubbed the autophagosome and is ultimately degraded and recycled by proteases in the lysosome. The process is initiated by a group of core ATG proteins, including a multi-pass transmembrane protein called ATG9A. Although ATG9A has been shown to be essential for both stress induced and basal autophagy, its mechanism and interaction network remain largely illusive. Our current study employs BioID proteomics to identify a network of interactors, including regulators of membrane fusion and vesicle trafficking, such as TRAPP, …

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On The Development And Use Of A Micro-Surface Probe For Measurement Of Li-Ion Battery Electrical Properties, John Eric Vogel Apr 2022

On The Development And Use Of A Micro-Surface Probe For Measurement Of Li-Ion Battery Electrical Properties, John Eric Vogel

Theses and Dissertations

Rechargeable lithium-ion batteries are a staple of modern society, providing power to a significant portion of the world's electronics and rapidly replacing older power sources. The advent of widely available electric cars with batteries of up to 200 kWh, with an increasing emphasis on fast charging, has only increased their importance. Lithium-ion battery electronic and ionic properties are largely determined by the microstructure of the battery electrode film and can be heavily influenced by relatively small variations in film makeup, including the formation of voids or distribution of carbon and binder. Prior to this research, electrical properties, which are some …

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Musical Phrase Segmentation Via Grammatical Induction, Reed James Perkins Apr 2022

Musical Phrase Segmentation Via Grammatical Induction, Reed James Perkins

Theses and Dissertations

Procedural generation algorithms can infer rules based on a dataset of examples when each example is made up of labeled components. Unfortunately, musical sequences resist potential inclusion in these kinds of datasets because they lack explicit structural semantics. In order to algorithmically transform a musical sequence into a sequence of labeled components, a segmentation process is needed. We outline a solution to the challenge of musical phrase segmentation that uses grammatical induction algorithms, a class of algorithms which infer a context-free grammar from an input sequence. We study five different grammatical induction algorithms on three different datasets, one of which …

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Chameleon: A Collection Of Poems, Daniel Albert Daw Apr 2022

Chameleon: A Collection Of Poems, Daniel Albert Daw

Theses and Dissertations

Chameleon is a collection of poetry that largely springs from John Keats' notion of the chameleon poet, which posits that poets can and should be able to speak with any voice or perspective in their work. A critical essay introduces the collection by putting Keats in conversation with other poets and scholars, such as Paisley Rekdal, Philip Sidney, and Fernando Pessoa, who also have much to say regarding the nature of voice in poetry. The essay further explores some of my most recurring strategies in poetry as well as what I consider to be some of the touchstones of great …

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How Lucretius Uses Epic, J. Dean Murphy Apr 2022

How Lucretius Uses Epic, J. Dean Murphy

Theses and Dissertations

I argue that Lucretius uses conventions of epic poetry and changes them to support his philosophical teachings. The proem of De rerum natura can be used to show how this occurs. The key moments within the proem include the invocation to Venus, how Venus is described as maternal and creative, the usage of socia to ask Venus for aid, the episode between Venus and Mars, and the establishment of Epicurean physics. I argue that the purpose of changing the expected conventions of epic is to better frame Lucretius' key idea of the purpose of life, namely reproduction.

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Parents Of Children With Asd: The Effects That Having A Child With Autism Spectrum Disorder Has On Parents And Families, Emma Fisher Apr 2022

Parents Of Children With Asd: The Effects That Having A Child With Autism Spectrum Disorder Has On Parents And Families, Emma Fisher

Student Works

Autism spectrum disorder (ASD) is a largely prevalent disorder that is typically first diagnosed at a young age. This diagnosis can have extreme effects on the family members of these children with the parents or guardians receiving the greatest impact of these effects. Having a child with ASD can be detrimental to a parent’s mental health as well as to the family’s functioning capabilities. This literature review found and reviewed 11 articles to interpret the psychological effects that having a child with ASD has on parents. Additionally, this article aimed to determine the effectiveness of intervention programs that have been …

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"Do Not Blame Me": James Baldwin On White Christian Guilt And Racial Repentance, Celeste Lafollette Apr 2022

"Do Not Blame Me": James Baldwin On White Christian Guilt And Racial Repentance, Celeste Lafollette

Theses and Dissertations

James Baldwin, a Black American writer, contends that the root cause of America’s racial problem is not necessarily prejudice or hatred but guilt. In his essay, “White Man’s Guilt,” Baldwin says that most of the arguments white people use today against the reality of America’s racial problem can be reduced to a plea: “Do not blame me. I was not there. I did not do it” (Price 411). In many of his essays, Baldwin explores white America’s long history of guilt, denial, and justification, and he explains that many white Christians—in an attempt to avoid blame and protect their power, …

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Optical Observation Of Large Area Projection Sintering, Derek Black Apr 2022

Optical Observation Of Large Area Projection Sintering, Derek Black

Theses and Dissertations

Polymer powder bed fusion (PBF/P) is one of many additive manufacturing (AM) processes utilized for producing polymer parts from digital 3D models. AM is preferred over traditional manufacturing methods in many applications due to advantages including tool-less manufacturing, high geometric complexity, short lead times, and reduced material waste. However, many industries that stand to benefit the most from AM are limited in their ability to use AM parts in large part due to low confidence in AM part quality. Among the polymer AM processes, PBF/P processes show significant promise for these applications due to their comparatively high isotropy and mechanical …

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Reflections Of A Litigator: Serrano V. Priest Goals And Strategies, Sid Wolinsky Apr 2022

Reflections Of A Litigator: Serrano V. Priest Goals And Strategies, Sid Wolinsky

BYU Education & Law Journal

In this article, I intend to describe what we hoped to achieve at that time and the strategies we used, and then to circle back and offer some observations about what we might learn from the litigation.

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