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Does Predation Environment Affect Repeated Responses To Predation Cuesâ In The Fishâ Brachyrhaphis Rhabdophora?, Madeleine S. Nate Dec 2022

Does Predation Environment Affect Repeated Responses To Predation Cuesâ In The Fishâ Brachyrhaphis Rhabdophora?, Madeleine S. Nate

Theses and Dissertations

Individual organisms face trade-offs when dealing with predation—more time spent avoiding predators often results in less time allocated to energy acquisition and reproductive-related activities. Individuals that optimize this trade-off and respond appropriately to current risk levels in their environment should be at an advantage. What is less clear is whether this tradeoff changes when individuals are repeatedly exposed to a predation threat. There may be advantages to responding consistently to every signal of threat, but it might also be advantageous to modulate individual behavior. Moreover, it is unclear how evolutionary history of a population might affect such individual responses. Our …

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Decision-Based Learning As A Tool For Teaching Statistics In A Peruvian University, Gloria Mora Barba Dec 2022

Decision-Based Learning As A Tool For Teaching Statistics In A Peruvian University, Gloria Mora Barba

Theses and Dissertations

Many students find that learning statistics is difficult, especially novice learners first taking statistical classes. Instructors also struggle to teach statistics due to many challenges, such as students' misconceptions, lack of math skills, negative attitudes, and deficient instructional methods. A new pedagogical approach called Decision-Based Learning (DBL) has been developed to help instructors and students overcome these challenges. A group of Peruvian university professors in 2018 and 2019 were trained to use DBL. However, limited studies have explored DBL instructors' and students' experiences using DBL in Peru. The aim of this qualitative research study is to deeply understand the experiences …

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Identity Work To Teach Mathematics For Social Justice, Navy B. Dixon Dec 2022

Identity Work To Teach Mathematics For Social Justice, Navy B. Dixon

Theses and Dissertations

In this thesis, mathematics educators are conceptualized as individuals with multiple, simultaneous figured worlds that inform their decisions while planning. The study explores how two mathematics educators negotiated and orchestrated their figured worlds to plan two mathematics lessons for social justice. The results highlight how numerous the figured worlds each participant surfaced through background interviews. Some of the figured worlds were elicited by the interview questions (i.e., Race, Family, Social Justice Teaching) but other figured worlds organically surfaced through the interviews (i.e., Sexuality, Community, Activism, Critical Information Consumption). A discursive analysis of a selection of these figured worlds revealed conceptualizations …

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Quantifying Shape Variation In An Antisymmetrical Trait In Xenophallus Umbratilis, Mary-Elise Johnson Nielsen Dec 2022

Quantifying Shape Variation In An Antisymmetrical Trait In Xenophallus Umbratilis, Mary-Elise Johnson Nielsen

Theses and Dissertations

Antisymmetry is a striking, yet puzzling form of biological asymmetry. The livebearing fish Xenophallus umbratilis exhibits antisymmetry in the male intromittent organ and provides a system that is well-suited for studying the nature of variation in antisymmetrical traits. Using geometric morphometrics, I test the hypothesis that because the gonopodium is critical to fitness there will not be significant differences in gonopodium shape between the two gonopodial morphs in this species. My results are consistent with this prediction, though I found that gonopodium shape did differ with gonopodium size.

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Novel Patterns For Nucleosome Positioning: From In Vitro To In Vivo, David Andrew Bates Dec 2022

Novel Patterns For Nucleosome Positioning: From In Vitro To In Vivo, David Andrew Bates

Theses and Dissertations

The fundamental unit of chromatin is the nucleosome, which consists of a core of eight proteins wrapped by DNA. This core is composed of four pairs of histone proteins: H2A, H2B, H3, and H4. The DNA wraps around the protein core ~1.7 times, facilitating compaction of DNA length in the cell. Further, the location of nucleosomes makes genomic elements encoded in the DNA, such as promoters or enhancers, accessible or inaccessible to RNA polymerase and transcription factors. Thus, where nucleosomes are located (or positioned), can play a major role in transcription or other cellular processes. Additionally, histone proteins are frequently …

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Deep-Brain Shape Features Differentially Relate To Social Outcomes In Pediatric Traumatic Brain Injury, Braydon Lee Dec 2022

Deep-Brain Shape Features Differentially Relate To Social Outcomes In Pediatric Traumatic Brain Injury, Braydon Lee

Undergraduate Honors Theses

Pediatric traumatic brain injury (TBI) is a global issue with major health consequences. The integrity of brain structures and their social functional correlates are at risk in children with TBI. In this study, magnetic resonance images of the thalamus, caudate, putamen, and globus pallidus were examined in a pediatric TBI group from the Social Outcomes of Brain Injury in Kids (SOBIK). Shape deformations of these structures were compared to an orthopedically injured (OI) control. Additionally, the correlation between shape deformation and theory of mind (ToM) measures were mapped and compared. This study found inward deformations in the ventral thalamic nuclei …

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Focusing Of High-Amplitude Sound Waves Using The Time Reversal Process, Brian D. Patchett Dec 2022

Focusing Of High-Amplitude Sound Waves Using The Time Reversal Process, Brian D. Patchett

Theses and Dissertations

Time reversal is a method often used to focus sound to a desired location, and works best in a reverberant environment. The effect of focus location within a reverberant environment is presented first, revealing that proximity to reflecting surfaces has a significant effect on the amplitude of the focus both experimentally and when using a modal summation model. These effects are a primary component to creating focus signals at high amplitudes. High-amplitude focusing experiments show that when multiple sources are used simultaneously to generate a focus, a peak amplitude pressure spike of 200 dB can be achieved in air. A …

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Development Of A 3d-Printed Microfluidic Droplet-On-Demand System For The Deterministic Encapsulation And Processing Of Biological Materials, Chandler A. Warr Dec 2022

Development Of A 3d-Printed Microfluidic Droplet-On-Demand System For The Deterministic Encapsulation And Processing Of Biological Materials, Chandler A. Warr

Theses and Dissertations

The growing threat of antimicrobial resistance is among the largest concerns in the world today. One method under development to combat this issue is the encapsulation of microbes in microfluidic droplets for single-cell testing. This method may be able to circumvent the need for a traditional positive cell culture which consumes the majority of the testing time using current diagnostic methods. This dissertation presents a method by which to deterministically encapsulate microbes using an artificial intelligence object detection algorithm and a Droplet-On-Demand microfluidic device. To accomplish this, the Droplet-On-Demand microfluidic device was first developed using a unique 3D-printing manufacturing method. …

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Exploring Experiential Education In The Online Learning Environment, Rhonda Sandberg Dec 2022

Exploring Experiential Education In The Online Learning Environment, Rhonda Sandberg

Theses and Dissertations

Research indicates that experiential learning enhances learning and increases student engagement. As online education in higher education increases, incorporating experiential learning into the online experience has been occurring. For this case study, interviews with five online instructional designers and three online instructors examined answers to the questions of how online instructional designers and online instructors define, value, and design experiential learning in their online courses. Insights regarding the benefits and challenges of designing online experiential learning are discussed. Online instructional designers discussed coaching online instructors through the process of designing experiential learning for their online courses. Online instructors expressed that …

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Taxonomic Delimitations Within The Penstemon Scariosus Pennell (Plantaginaceae) Complex, Mikel R. Stevens, Robert L. Johnson, Jason M. Stettler, Lindsey M. Meservey, Matthew D. Robbins, Chris D. Anderson, Sydney J. Porter, Nathan J. Ricks, Sarah Harrison Dec 2022

Taxonomic Delimitations Within The Penstemon Scariosus Pennell (Plantaginaceae) Complex, Mikel R. Stevens, Robert L. Johnson, Jason M. Stettler, Lindsey M. Meservey, Matthew D. Robbins, Chris D. Anderson, Sydney J. Porter, Nathan J. Ricks, Sarah Harrison

Monographs of the Western North American Naturalist

We examine the 4 recognized varieties of Penstemon scariosus that constitute a complex of related taxa that share overlapping morphological characters: namely varieties albifluvis, cyanomontanus, garrettii, and scariosus. Modern taxonomic descriptions and associated keys are not in complete agreement on how to clearly delineate these varieties. It is particularly important to understand the taxonomic circumscription of variety albifluvis, since it is being considered for listing under the Endangered Species Act. To address the taxonomic position of taxa in this species complex, we examine the genetic structure of 66 accessions of P. scariosus, representing the …

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Historical And Recent Breeding Of The Western Grebe And Clark's Grebe In A Severely Impaired Ecosystem At Clear Lake, California, Floyd E. Hayes, Bryan J. Mcintosh, Dylan G. Turner, Douglas E. Weidemann Dec 2022

Historical And Recent Breeding Of The Western Grebe And Clark's Grebe In A Severely Impaired Ecosystem At Clear Lake, California, Floyd E. Hayes, Bryan J. Mcintosh, Dylan G. Turner, Douglas E. Weidemann

Monographs of the Western North American Naturalist

Clear Lake is a large (176.7-km2) natural lake in northern California, USA. An estimated 1000 pairs of Western Grebes (Aechmophorus occidentalis) and Clark’s Grebes (A. clarkii) nested on the lake prior to massive applications of the pesticide dichlorodiphenyldichloroethane (DDD) to kill the Clear Lake gnat (Chaoborus astictopus) during 1949–1957. Biomagnification of DDD was implicated as the cause of several mass mortality events of grebes and short-term reproductive failure in the 1950s, although other factors such as mercury (Hg) poisoning may have contributed. Successful nesting resumed in 1960 and increased gradually, with up …

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Are Changes In Muscle Blood Flow Associated With The Age-Related Decrease In Critical Power?, Abigail Dorff Dec 2022

Are Changes In Muscle Blood Flow Associated With The Age-Related Decrease In Critical Power?, Abigail Dorff

Theses and Dissertations

Aging results in lower exercise tolerance, manifested as decreased Critical Power (PCRIT). Aging is also associated with reduced physical activity, decreased muscle mass, and altered muscle blood flow, all of which may contribute to the age-related decrease in PCRIT. Purpose: The purpose of this study was to determine if the age-related decrease in PCRIT occurs independently of changes in physical activity and muscle mass and if it is related to impaired muscle blood flow. Methods: 10 Old (63.1 ± 2.5 years, 5 female and 5 male) and 10 Young (24.4 ± 4.0 years, 5 female and 5 male) physically active …

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Full Issue Dec 2022

Full Issue

Insights: The Newsletter of the Neal A. Maxwell Institute for Religious Scholarship

No abstract provided.

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Brown Bag Report Dec 2022

Brown Bag Report

Insights: The Newsletter of the Neal A. Maxwell Institute for Religious Scholarship

On 13 November John F. Hall, professor of classical languages and ancient history at Brigham Young University, spoke about his new book, New Testament Witnesses of Christ: Peter, John, James, and Paul. The book draws on early Christian writings to show that the “four pillars” of early Christianity—Peter, John, James (the brother of Jesus), and Paul—consistently testified of the life and mission of Jesus Christ. The book is important, Hall believes, because many professing Christians, even many ministers, do not accept Christ as the literal Son of God even though the scriptures and the writings of the early church fathers …

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The Book Of Mormon At The Bar Of Dna “Evidence” Dec 2022

The Book Of Mormon At The Bar Of Dna “Evidence”

Insights: The Newsletter of the Neal A. Maxwell Institute for Religious Scholarship

On 29 January a capacity crowd gathered in the Harold B. Lee Library auditorium to hear BYU biology professor Michael F. Whiting address the topic “Does DNA Evidence Refute the Authenticity of the Book of Mormon? Responding to the Critics.” The size of the audience suggested the great interest people have in the role and limitations of DNA research in unlocking the past, especially the religious past.

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Methods For Single-Cell And Low-Input Proteomics, Yiran Liang Dec 2022

Methods For Single-Cell And Low-Input Proteomics, Yiran Liang

Theses and Dissertations

Single-Cell Proteomics (SCP) can provide unique insights into biological processes by resolving heterogeneity that is obscured by bulk measurements. Gains in the overall sensitivity and proteome coverage through improvements in sample processing and analysis increase the information content obtained from each cell, particularly for less abundant proteins. In addition to achieving in-depth proteome coverage from single cells, higher throughput measurements enable large-scale and statistically significant features within single cell populations. This dissertation focuses on method development to improve the sensitivity and throughput of SCP based on the nanoPOTS (nanodroplet Processing in One pot for Trace Samples) platform. The methods discussed …

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Pollination Ecology Of Island Endemic Plants: A Case Study On The California Channel Islands, C. Sheena Sidhu, Giselle E. Lozano, Michelle C. Miner, Emily Howe, Erin E. Wilson-Rankin Dec 2022

Pollination Ecology Of Island Endemic Plants: A Case Study On The California Channel Islands, C. Sheena Sidhu, Giselle E. Lozano, Michelle C. Miner, Emily Howe, Erin E. Wilson-Rankin

Western North American Naturalist

Understanding the pollination requirements of threatened species is critical for the success of long-term conservation strategies. In a series of greenhouse experiments, we assessed the effects of different pollination treatments, including autogamy, facilitated autogamy, and cross-pollination on fruit and seed set for 2 generations of a rare island endemic plant. Santa Cruz Island rockcress, Sibara filifolia (Brassicaceae), is a rare, endangered annual herb that is endemic to the California Channel Islands. While efforts are underway to monitor and conserve this rare plant species, little is known about its pollination biology. We quantified the index of self-compatibility and multiplicative fitness. We …

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Sitting Time And Insulin Resistance In 6,931 United States Adults: The Role Of Abdominal Adiposity, Kayla Marie Parker Dec 2022

Sitting Time And Insulin Resistance In 6,931 United States Adults: The Role Of Abdominal Adiposity, Kayla Marie Parker

Theses and Dissertations

This cross-sectional investigation of 6,931 U.S. adults examined the relationship between sitting time and insulin resistance. A primary objective was to evaluate how this relationship was mediated by the following variables: age, sex, race, year of assessment, cigarette smoking, physical activity, body mass index (BMI), and waist circumference. Self-reported sitting time, measured in minutes per day, was the exposure variable. Insulin resistance, indexed by the homeostatic model assessment of insulin resistance (HOMA-IR), was the outcome variable. Data were used from the 2011-2018 National Health and Nutrition Examination Survey (NHANES). Results showed a strong, positive association between sitting time and insulin …

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Feedback As Boundary Object: Intersections Of Writing, Response, And Research, Lindsey Harding, Joshua King, Anya Bonanno, Joseph Powell Dec 2022

Feedback As Boundary Object: Intersections Of Writing, Response, And Research, Lindsey Harding, Joshua King, Anya Bonanno, Joseph Powell

Journal of Response to Writing

While a great deal is known about instructor response to student writing—from commenting practices to student perceptions—less is known about how feedback impacts students’ writing and writerly development. While we set out to study students’ explicit engagement with written instructor feedback, our initial experimental design was disrupted by the COVID-19 pandemic. Accordingly, we describe the dialogic collaborative process that emerged as we considered both the data we were able to collect and, in turn, feedback anew. This article proposes that feedback on student writing is a boundary object which affords those interacting with it the opportunity for collaboration despite the …

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“I Suppose An Island Dweller Should Expect It To Be So”: The Contradiction And Drama Of Maternity And Islands In Caleb’S Crossing, Shayla Frandsen Dec 2022

“I Suppose An Island Dweller Should Expect It To Be So”: The Contradiction And Drama Of Maternity And Islands In Caleb’S Crossing, Shayla Frandsen

Criterion: A Journal of Literary Criticism

Islands have a long tradition of capturing human imagination and functioning as a space that nurtures both magic and mystery. As geographic locations, they seem to avoid easy taxonomy even while behaving easily categorizable: they exist as tourist fantasies separate from everyday landscape even while many operate as an othered land that is still “safe” enough to visit. They are isolated yet capable of nurturing strong cultural identity. They also act as autonomous entities while still being interconnected within larger natural structures, coastlines, and waterways. In these ways and more islands navigate as border spaces of inherent contradiction—contradictions which are …

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Hybrid Machine Learning And Physics-Based Modeling Approaches For Process Control And Optimization, Junho Park Dec 2022

Hybrid Machine Learning And Physics-Based Modeling Approaches For Process Control And Optimization, Junho Park

Theses and Dissertations

Transformer neural networks have made a significant impact on natural language processing. The Transformer network self-attention mechanism effectively addresses the vanishing gradient problem that limits a network learning capability, especially when the time series gets longer or the size of the network gets deeper. This dissertation examines the usage of the Transformer model for time-series forecasting and customizes it for a simultaneous multistep-ahead prediction model in a surrogate model predictive control (MPC) application. The proposed method demonstrates enhanced control performance and computation efficiency compared to the Long-short term memory (LSTM)-based MPC and one-step-ahead prediction model structures for both LSTM and …

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Full Issue Dec 2022

Full Issue

Criterion: A Journal of Literary Criticism

No abstract provided.

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Fragments And Foreignness In Claudia Rankine's Citizen, Cutter Mendenhall Dec 2022

Fragments And Foreignness In Claudia Rankine's Citizen, Cutter Mendenhall

Criterion: A Journal of Literary Criticism

This analysis investigates Claudia Rankine’s redefinition of foreignness as the fragmenting force of microaggressions that splinters the African American identity. This fragmentation has implications that shatter and reconstruct the traditional understanding of the African American self, the source and fallacies of both white and black anger, and what it means to be native to mainstream American society. Ultimately, Rankine asserts that the foreignizing nature of microaggressions is a socially constructed form of oppression. This foreignness breaks the African American identity into easily accessible subhuman caricatures that leave the black identity in a ruptured state of cognitive dissonance. While making coherence …

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Interconnected Precarity: A Contemporary Reframing Of Bodily And Earthly Health In Wendell Berry's The Unsettling Of America: Culture And Agriculture, Abigail Pinegar Nov 2022

Interconnected Precarity: A Contemporary Reframing Of Bodily And Earthly Health In Wendell Berry's The Unsettling Of America: Culture And Agriculture, Abigail Pinegar

Theses and Dissertations

Published in 1977, Wendell Berry's book The Unsettling of America: Culture and Agriculture gained widespread popularity. More than half a century later, many of the notions of the body and the earth presented in its seventh chapter, "The Body and the Earth," remain relevant and important for environmental discourse today. Berry's discussion of the body and the earth examines their mutuality and codependence from an ontological, theological, agricultural, and even biological perspective. The coupling of this text with Judith Butler's, Frames of War: When is Life Grievable? contemporizes his argument through its more socio-political and philosophical claims regarding life and …

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The Development Of A Genomic Toolbox For Studying The Evolutionary Genetics Of Reptilian Lungs Using The Chicken Model, Logan Thomas Edvalson Nov 2022

The Development Of A Genomic Toolbox For Studying The Evolutionary Genetics Of Reptilian Lungs Using The Chicken Model, Logan Thomas Edvalson

Theses and Dissertations

There is a vast diversity in tetrapod lung branching morphology. Phylogenetically, much of the pulmonary diversity among vertebrates appears to arise from the way epithelial tubes branch or form saccular (cyst) structures. Fgf10 activity has been shown to play a critical role in regulating branch versus cyst morphology. We hypothesize that the species-specific differences in lung morphology may be primarily due to species-specific differences in Fgf10 expression. To test this hypothesis, we have performed bioinformatic analyses on the Fgf10 locus and have identified a conserved 11 kb noncoding region that potentially contains the Fgf10 lung enhancer. We are taking a …

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A Review Of Psilochalcis Kieffer (Hymenoptera: Chalcidoidea: Chalcididae) From The Western United States With Descriptions Of Three New Species From Utah And Surrounding States, Mark J. Petersen, Robert L. Johnson, Val Jo Anderson Nov 2022

A Review Of Psilochalcis Kieffer (Hymenoptera: Chalcidoidea: Chalcididae) From The Western United States With Descriptions Of Three New Species From Utah And Surrounding States, Mark J. Petersen, Robert L. Johnson, Val Jo Anderson

Western North American Naturalist

A review of Psilochalcis Kieffer (Hymenoptera: Chalcididae) species in the western United States is presented, with the addition of 3 new species: Psilochalcis adenticulata Petersen, new species; Psilochalcis minuta Petersen, new species; and Psilochalcis quadratis Petersen, new species. Morphological diagnoses and distributions are given for each species. A dichotomous key to the Psilochalcis species of North America is presented.


Se presenta una revisión de las especies de Psilochalcis Kieffer (Hymenoptera: Chalcididae) en el oeste de los Estados Unidos, con la incorporación de tres nuevas especies: una nueva especie de Psilochalcis adenticulata Petersen, una nueva especie de Psilochalcis minuta Petersen y …

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The History Of Cougars In Yellowstone National Park, William J. Ripple Phd, Robert L. Beschta, Luke E. Painter Nov 2022

The History Of Cougars In Yellowstone National Park, William J. Ripple Phd, Robert L. Beschta, Luke E. Painter

Western North American Naturalist

We synthesize reports of cougar (Puma concolor) killings, sightings, and related information in Yellowstone National Park from the early 1900s through the 1970s. Cougars were common before the park was established in 1872 but were heavily persecuted in the late 1800s and early 1900s, when the park attempted extirpation. Despite being greatly reduced, cougars may have persisted, at least intermittently, in the park and vicinity at low levels from the 1920s through the 1950s, at numbers that were likely functionally irrelevant from an ecological perspective. More recently, in field studies conducted during periods between 1987 and 2017, cougar …

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Necrotic Lesions And Associated Mites Of The Pinnae Of Free-Living Bats Artibeus Jamaicensis And Sturnira Hondurensis From Mexico, Silvia S. Zalapa, Sergio Guerrero-Vázquez, Cornelio Sánchez-Hernández, Juan B. Morales-Malacara, Gabriela Castaño-Meneses, José L. Navarrete-Heredia, David Ávila-Figueroa, Francisco Javier Padilla-Ramírez Nov 2022

Necrotic Lesions And Associated Mites Of The Pinnae Of Free-Living Bats Artibeus Jamaicensis And Sturnira Hondurensis From Mexico, Silvia S. Zalapa, Sergio Guerrero-Vázquez, Cornelio Sánchez-Hernández, Juan B. Morales-Malacara, Gabriela Castaño-Meneses, José L. Navarrete-Heredia, David Ávila-Figueroa, Francisco Javier Padilla-Ramírez

Western North American Naturalist

Lesions of the pinnae of captive bats are common, but there are few reports for free-living bats. In those reports, causal agents of the lesions were attributed to mites, fungus, or a combination of factors, but specific information regarding pinna lesions is generally lacking. This is the first report in Mexico of pinna lesions, associated mites, and histopathological findings for 2 species of free-living bats: the Jamaican fruit-eating bat (Artibeus jamaicensis) and the Honduran yellow-shouldered bat (Sturnira hondurensis).


Reportes de lesiones en las pinas de murciélagos en cautiverio son comunes, pero hay pocos para murciélagos de …

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Mindful Musicians: Trait Mindfulness, Deliberate Practice, Anxiety And Depression In College Musicians, Sally S. Wynn Nov 2022

Mindful Musicians: Trait Mindfulness, Deliberate Practice, Anxiety And Depression In College Musicians, Sally S. Wynn

Undergraduate Honors Theses

Background. Mindfulness is understood as a capacity to cultivate moment-to-moment awareness with a sense of nonjudgement, curiosity, and kindness. Anxiety and depression are prevalent in the undergraduate musician population, despite positive effects on mental health that are often associated with listening to music. This study explored factors of music practice including instrument category, practice time, and the use of deliberate practice techniques. Our objective was to test the relationships between dispositional mindfulness, musicianship, and mental health among college instrumental musicians. I hypothesized first, that dispositional mindfulness would be positively associated with musicianship; second, that mindfulness would be negatively associated with …

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Front Matter, Vol. 82 No. 3 Nov 2022

Front Matter, Vol. 82 No. 3

Western North American Naturalist

No abstract provided.

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