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Articles 1 - 30 of 4342
Full-Text Articles in Life Sciences
Building Appreciation For Natural History Collections From Biological Collection Data., Jamie Jensen, Seth Bybee
Building Appreciation For Natural History Collections From Biological Collection Data., Jamie Jensen, Seth Bybee
ScholarsArchive Data
These data represent the pre- and post-survey responses by students in an undergraduate, non-majors biology course given before and after a unit on Natural History Collections. We administered the Revised New Ecological Paradigm (R-NEP; Dunlap et al., 2000) survey which measures pro-environmental attitudes using 15 Likert-scale items.
Characterizing Water Source Selection By Pinyon Jays (Gymnorhinus Cyanocephalus) In Utah, Audrey H. Biser, Randy T. Larsen, Samuel B. St. Clair, Steven L. Petersen
Characterizing Water Source Selection By Pinyon Jays (Gymnorhinus Cyanocephalus) In Utah, Audrey H. Biser, Randy T. Larsen, Samuel B. St. Clair, Steven L. Petersen
Student Works
Pinyon jays (Gymnorhinus cyanocephalus) are corvids native to semiarid ecosystems of the western US. Populations have declined by 84% since 1966, yet no causes have been identified and imminent decisions about federal status make understanding pinyon jay ecology increasingly urgent. As drought conditions intensify, water is becoming scarcer in systems that are already characterized by its limited availability. Therefore, pinyon jay decline is likely influenced by increasing aridity. Jays have been observed drinking from springs and artificial water sources in Utah; however, their relationship to water is poorly understood. Our study aims to characterize pinyon jay water source …
From Anaerobic Digesters To The Human Gut: Ecological Responses Of Microbiomes To Environmental And Biological Perturbations, Maliea Annholden Nipko
From Anaerobic Digesters To The Human Gut: Ecological Responses Of Microbiomes To Environmental And Biological Perturbations, Maliea Annholden Nipko
Theses and Dissertations
Microbial communities regulate essential ecological and metabolic processes across both engineered and host-associated ecosystems. Although these systems differ substantially in composition and function, they are governed by common ecological principles including community succession, resilience, species interactions, and responses to environmental and biological perturbations. This dissertation investigates how perturbations influence microbiome structure, function, and stability through three complementary studies spanning anaerobic digestion and the human gut microbiome. First, the effects of an extremophilic biological pretreatment using Caldicellulosiruptor bescii were evaluated in industrial-scale anaerobic digesters treating dairy manure. High- temperature pretreatment substantially altered microbial community composition, with bacterial populations remaining metabolically active …
Biomechanical And Talar Cartilage Responses To Running In Individuals With Chronic Ankle Instability, Minsub Oh
Biomechanical And Talar Cartilage Responses To Running In Individuals With Chronic Ankle Instability, Minsub Oh
Theses and Dissertations
Context: Chronic ankle instability (CAI) has shown altered movement patterns and joint loading, which increase the risk of posttraumatic ankle osteoarthritis. Abnormal vertical ground reaction force (vGRF) during running may contribute to talar cartilage degeneration; however, the acute biomechanical and cartilage responses to running in individuals with CAI remain unclear. Purpose: The purpose of this study was to compare running biomechanics and changes in talar cartilage thickness and T2 relaxation times before and after running between individuals with CAI and healthy controls. Methods: Twenty individuals with CAI and 20 healthy controls completed running biomechanics and magnetic resonance imaging (MRI) sessions. …
Transcriptomic And Genomic Insights Into Nutrient Stress Responses And Subgenome Evolution In Chenopodium, Ashley Kathleen Marcheschi
Transcriptomic And Genomic Insights Into Nutrient Stress Responses And Subgenome Evolution In Chenopodium, Ashley Kathleen Marcheschi
Theses and Dissertations
Chenopodium is a diverse genus of nutritionally and ecologically important species in the Amaranthaceae family. This thesis investigates two outstanding questions in the genus: how Chenopodium quinoa responds transcriptionally to nutrient deficiency and how Australian Chenopodium species are related through their subgenomic ancestry and evolutionary history. First, we characterized transcriptomic responses of C. quinoa to deficiencies of twelve essential macro- and micronutrients across leaf and root tissues using RNA sequencing. Leaves showed the strongest responses under nitrogen, potassium, magnesium, and zinc deficiency, while roots responded more evenly across conditions. Recurring responses included suppression of photosynthesis, remodeling of translational machinery, reactive …
Data For Post-Retail Application Of Chitosan Coating And Uv-C Irradiation: Effects On Strawberry Shelf Life, Microbial Quality, And Consumer Acceptance, Jonathan Kershaw
Data For Post-Retail Application Of Chitosan Coating And Uv-C Irradiation: Effects On Strawberry Shelf Life, Microbial Quality, And Consumer Acceptance, Jonathan Kershaw
ScholarsArchive Data
Food waste is a global issue with significant environmental, economic, and human health impacts. The largest share of household and retail food waste comes from fresh produce, much of which is still edible at the time of disposal. While previous work has investigated shelf-life extension technologies applied on freshly harvested produce, almost no studies have investigated the efficacy of these treatments when applied to post-retail produce. This study investigated the effect of UV-C exposure and chitosan coating on the quality, microbial load, and visual acceptance of post-retail strawberries. Strawberries were assigned to low dose UV-C, chitosan dip, or one of …
Science, Uncertainty, And Stewardship: Climate Change Viewpoints In Higher Education, Jamie Jensen, Isaiah Aduse-Poku
Science, Uncertainty, And Stewardship: Climate Change Viewpoints In Higher Education, Jamie Jensen, Isaiah Aduse-Poku
ScholarsArchive Data
This dataset supports a Q-methodology study of climate change viewpoints among undergraduate students at Brigham Young University. Participants were recruited from an introductory non-majors biology course during Fall 2025. The study examined how students organized climate-change views across scientific evidence, human causation, uncertainty, political beliefs, religious stewardship, moral responsibility, perceived agency, climate policy, and future risks.
Humans Rule? Development Of Stewardship Mindsets Among Religious Undergraduates, Jamie Jensen, J Robert Nielson
Humans Rule? Development Of Stewardship Mindsets Among Religious Undergraduates, Jamie Jensen, J Robert Nielson
ScholarsArchive Data
Two cohorts of students enrolled in a non-major introductory biology course were surveyed in 2020 and 2025 using the Revised New Ecological Paradigm (R-NEP) instrument. Open-ended student responses concerning their definition of ‘rule’ as a human prerogative were also analyzed using qualitative coding.
Sequencing Of Chenopodium A-Genome Diploids To Identify Potential Mechanisms Of Speciation: A Preliminary Study, Riley Roser
Sequencing Of Chenopodium A-Genome Diploids To Identify Potential Mechanisms Of Speciation: A Preliminary Study, Riley Roser
Theses and Dissertations
The genus Chenopodium is of increasing significance, mainly due to allotetraploid quinoa (C. quinoa Willd.,2x = 4x =36, AABB genome) becoming globally recognized for its high nutritional value and tolerance for stress. Diploid A-genome relatives of quinoa in the Western Hemisphere have shown speciation patterns congruent to adaptive radiation, particularly in the North American continent, where a number inhabit ecological niches while others form mixed populations where they are sympatric. Characterization of the genetic mechanism(s) underlying this rapid speciation, could clarify their potential usefulness for improving quinoa . Previous whole-genome assemblies of AA diploids C. watsonii A. Watson and C. …
Is Trimethylamine N-Oxide A Friend, Foe, Or Hormetic Agent In Patients With Parkinson’S Disease: A Focused Review Of One Microbial Metabolite, Abraham B. Alton
Is Trimethylamine N-Oxide A Friend, Foe, Or Hormetic Agent In Patients With Parkinson’S Disease: A Focused Review Of One Microbial Metabolite, Abraham B. Alton
Student Works
This review synthesizes recent literature examining trimethylamine N-oxide (TMAO) synthesis and its potential role in Parkinson’s Disease (PD) pathology. An increase in TMAO plasma and CSF concentration is associated with PD progression and severity. TMAO biosynthesis is a two-step process. First, precursors including carnitine and choline are converted to trimethylamine (TMA) by gut microbes. Second, TMAO is oxidized to TMAO in the liver. Once absorbed into circulation TMAO crosses the blood brain barrier and may influence PD disease pathology by increasing neuroinflammation and astrocyte activation and damaging the cerebral lymphatic system. These mechanisms may contribute to the cognitive and motor …
Rethinking Functional Groupings In Basketball Wings Through Ecological Trait Frameworks, Dhruv Mehrotra
Rethinking Functional Groupings In Basketball Wings Through Ecological Trait Frameworks, Dhruv Mehrotra
Theses and Dissertations
This paper starts with a review about Plant Functional Types and then goes deeper into the conceptual foundations of Plant Functional Types (PFT's) with detailed discussion of global trait spectra such as the leaf economics spectrum and the fast-slow continuum. Using concepts like response and effect traits, the review then talks about how a trait based ecological framework can provide a more robust guideline to classify plants. The review then talks about how players in basketball have been classified in the past along with some of the newer typologies. The review starts to draw some parallels between the ecological framework …
Increasing Evolution Acceptance Among Religious Adults Through Targeted Education, Jamie Jensen
Increasing Evolution Acceptance Among Religious Adults Through Targeted Education, Jamie Jensen
ScholarsArchive Data
These data come from a study measuring the effectiveness of the Shareable Home Application for Reconciling Evolution (SHARE) tool, which consists of five short videos addressing the nature of science, compatibility between doctrine of the Church of Jesus Christ of Latter-day Saints and evolution, evolutionary mechanisms, and evidence for evolution, including human evolution.
Faith, Science, And Choice: Vaccine Attitudes Among Religious University Students, Jamie Jensen
Faith, Science, And Choice: Vaccine Attitudes Among Religious University Students, Jamie Jensen
ScholarsArchive Data
These data comprise a Q-methodology study conducted at Brigham Young University among undergraduate students to determine vaccine attitudes in relation to religious and political ideologies. It includes raw sort data, templates for running Q-methodology, and interview transcripts.
A Case For Mtor Pathway Screening In Early Epilepsy Diagnosis, David Seamons
A Case For Mtor Pathway Screening In Early Epilepsy Diagnosis, David Seamons
Student Works
Mutations in the mTOR pathway can give rise to epileptic seizures in patients. While a variety of antiepileptic drugs are available to treat epilepsy, a large proportion of patients will experience refractory seizures (Chen et al., 2018). Additionally, patients with mTOR-related epilepsy may experience reduced efficacy in traditional therapeutic options to treat seizures (French et al., 2016; Hadzsiev et al., 2023; Kato et al., 2022; Moloney et al., 2023). Mutations resulting in mTOR-related epilepsy are genetically inherited; however, some variability in family histories of epilepsy may be due to second-hit somatic mutations in focal areas of the brain (Dawson et …
Improving Reclamation Seeding Success Through Seed Technologies, Surface Preparation, And Microbial Inoculants, Josh M. De Santiago Lazalde
Improving Reclamation Seeding Success Through Seed Technologies, Surface Preparation, And Microbial Inoculants, Josh M. De Santiago Lazalde
Theses and Dissertations
Revegetation of reclaimed lands is often limited by poor seed placement, unfavorable surface conditions, and reduced biological activity, particularly on steep or physically degraded substrates where broadcast seeding is commonly used. Improving early seeding establishment under these conditions requires approaches that address both physical and biological barriers to seedling development. We evaluated the effectiveness of surface preparation, seed technologies, and microbial inoculants for improving plant establishment in field and greenhouse settings relevant to mineland reclamation. At the field scale (Chapter 1), we investigated the effects of chain harrowing and seed enhancement treatments on the establishment of grasses, forbs, and shrubs …
Impacts Of Arbuscular Mycorrhizal Fungi And Novel Soil Amendments On Perennial Grass Establishment In Mineland Soils, Melissa M. Burrell
Impacts Of Arbuscular Mycorrhizal Fungi And Novel Soil Amendments On Perennial Grass Establishment In Mineland Soils, Melissa M. Burrell
Theses and Dissertations
Establishing perennial vegetation on mine waste materials is one of the primary challenges in mine land reclamation. Waste rock and mine tailing substrates typically lack the physical structure, nutrient availability, and biological communities necessary to support plant establishment and long-term ecosystem recovery. As a result, revegetation efforts often experience poor seeding success and limited plant persistence despite intensive management efforts. These studies investigated two complementary strategies to improve perennial grass establishment in degraded mine substrates: restoring mycorrhizal associations and enhancing soil function through soil amendments. The first study examined the role of arbuscular mycorrhizal fungi (AMF) in facilitating plant establishment …
Infertility And Mental Health, Laynie Pugmire
Infertility And Mental Health, Laynie Pugmire
Family Perspectives
No abstract provided.
Impacts Of Adoption On Attachment, Laynie Pugmire
Impacts Of Adoption On Attachment, Laynie Pugmire
Family Perspectives
No abstract provided.
Fatherhood Redefined: How Paternity Leave Shapes Relationships, Olivia Flores
Fatherhood Redefined: How Paternity Leave Shapes Relationships, Olivia Flores
Family Perspectives
Paternity leave remains limited in the United States, with relatively few fathers granted paid time off following the birth of a child. This literature review examines how paternity leave shapes marital relationships by influencing parental mental health and couple communication during the transition to parenthood. Drawing on interdisciplinary research, the paper synthesizes evidence indicating that fathers’ use of paternity leave is associated with higher marital satisfaction and greater relationship stability. These benefits are largely mediated by improvements in both maternal and paternal mental health, as paternity leave reduces role overload, stress, and symptoms of anxiety and depression for both partners. …
Academic And Mental Health Outcomes In Homeschoolers, Emily Higham
Academic And Mental Health Outcomes In Homeschoolers, Emily Higham
Family Perspectives
Homeschooling—education conducted outside traditional school settings and typically led by parents—has grown substantially in the United States, particularly following the COVID-19 pandemic. As participation has increased, greater attention has been directed toward understanding its implications for children’s development. This literature review examines associations between homeschooling, mental health, and academic outcomes. Existing research suggests that homeschooled children generally demonstrate positive socioemotional functioning, including lower levels of internalizing behaviors such as anxiety and depression and fewer externalizing behaviors such as aggression compared to traditionally schooled peers. These outcomes may be supported by increased parental involvement, stronger family relationships, reduced exposure to bullying, …
The World Needs More Resilient Kids, Kara Driggs
The World Needs More Resilient Kids, Kara Driggs
Family Perspectives
No abstract provided.
The Effect Of Singlehood On Socioemotional Health, Alexa Garner
The Effect Of Singlehood On Socioemotional Health, Alexa Garner
Family Perspectives
No abstract provided.
Why Yelling Feels Like The Only Option (And What To Try Instead), Vanessa Brouse
Why Yelling Feels Like The Only Option (And What To Try Instead), Vanessa Brouse
Family Perspectives
No abstract provided.
Psoas Muscle Volume Asymmetry, Not Attachment Site Asymmetry, Is Associated With Chronic Low Back Pain Status, Kassity D. Clay
Psoas Muscle Volume Asymmetry, Not Attachment Site Asymmetry, Is Associated With Chronic Low Back Pain Status, Kassity D. Clay
Theses and Dissertations
Chronic low back pain (CLBP) is a leading cause of disability worldwide, with increasing evidence implicating neuromuscular factors such as muscle asymmetry in its pathophysiology. The psoas major muscle (PMM), a key contributor to lumbar spine stability, has been comparatively under-investigated despite its biomechanical importance. PURPOSE: To determine whether right-to-left differences in PMM volume and attachment site asymmetry are associated with CLBP; to evaluate whether ODI, IPAQ, and age are associated with PMM volume imbalance; and to assess whether combined PMM volume and attachment asymmetry are associated with CLBP. METHODS: A retrospective secondary analysis was conducted using lumbar MRI data …
Mental Gymnastics: How Misconceptions Drive Unstable Forms Of Scientific And Religious Reconciliation, Jamie Jensen, Jade Sorensen, Andrea Phillips, Mackay Strong, Isaac A. Woolley, Spencer M. Johanseon, Afton Fillmore, Luke N. Noakes
Mental Gymnastics: How Misconceptions Drive Unstable Forms Of Scientific And Religious Reconciliation, Jamie Jensen, Jade Sorensen, Andrea Phillips, Mackay Strong, Isaac A. Woolley, Spencer M. Johanseon, Afton Fillmore, Luke N. Noakes
ScholarsArchive Data
Interview transcripts of introductory biology students attempting to reconcile evolutionary science with religious faith.
Tracing Microplastics From Polymer-Coated Urea: Urban To Agricultural Pathways And Environmental Fate, Caden Joseph Seely
Tracing Microplastics From Polymer-Coated Urea: Urban To Agricultural Pathways And Environmental Fate, Caden Joseph Seely
Theses and Dissertations
Polymer-coated urea (PCU) is widely used as a slow-release nitrogen (N) fertilizer because it improves N use efficiency and reduces losses through leaching, denitrification, and volatilization. However, the polymer coating raises concerns about potential microplastic (MP) transport to surface waters following fertilizer application. This thesis evaluates the off-site transport of MPs and associated nutrient and sediment losses from PCU in both urban landscape and agricultural systems. In the urban landscape study, treatments included sod, mulched beds, and water-efficient ground cover receiving uncoated urea, PCU, or liquid slow-release N at 225 kg N ha⁻¹ (with reduced rates for beds and ground …
Optimizing Seedling Emergence In Sagebrush-Steppe Restoration: The Role Of Sowing Depth, Seed Coatings, And Microsite Amendments, John Thomas Stromberg
Optimizing Seedling Emergence In Sagebrush-Steppe Restoration: The Role Of Sowing Depth, Seed Coatings, And Microsite Amendments, John Thomas Stromberg
Theses and Dissertations
Seedling survival of fall-sown seeds over the winter and subsequent emergence in spring is a major demographic bottleneck limiting recruitment in dryland restoration. Deeper sowing can place seeds in a more favorable soil environment with more stable moisture and moderated temperatures, but emergence from these depths is often constrained by the greater distance seedlings must grow to reach the surface and by mechanical resistance in the upper soil layer. In the first chapter of this thesis, we evaluated the use of a slow-release gibberellic acid (GA₃) polymer seed coating to aid in seedling emergence from deeper sowing depths. We compared …
Hybrid Bermudagrass Dormancy Management In A Cool-Season Climate, Clarissa H. Peterson
Hybrid Bermudagrass Dormancy Management In A Cool-Season Climate, Clarissa H. Peterson
Theses and Dissertations
Hybrid bermudagrass (Cynodon dactylon [L.] Pers. × C. transvaalensis Burtt Davy) (HBG) is a water efficient warm-season turfgrass increasingly adopted in cool-season and semi-arid regions due to climate change and the demand for reduced irrigation inputs. However, prolonged winter dormancy limits its visual quality (verdure) and seasonal performance. This thesis evaluated multiple management strategies to modify dormancy dynamics and improve off-season turf quality in a cool-season environment. Field experiments assessed the effects of growth covers, fertilizers, colorants, surfactants, organic acids, and overseeding with cool-season species on HBG dormancy over two seasons. Dormancy responses were quantified using normalized difference vegetation index …
Redox Reprogramming In Neurogenesis: Candidate Developmental Switches And Targets Of Oxidative Toxicity In The Redox Proteome, Ryan Jacob Summerhays
Redox Reprogramming In Neurogenesis: Candidate Developmental Switches And Targets Of Oxidative Toxicity In The Redox Proteome, Ryan Jacob Summerhays
Theses and Dissertations
Neurogenic differentiation requires coordinated redox regulation, yet how reversible cysteine oxidation is remodeled at proteome scale during this process remains poorly defined. Here, we asked whether differentiation is associated with selective, site-specific changes in reversible cysteine oxidation and whether oxidative stress reveals developmentally conditioned vulnerabilities within this redox landscape. To address this, we applied a discovery-oriented, proteome-scale redox profiling strategy that quantifies condition-dependent changes in reversible cysteine oxidation using CysPAT labeling, phosphopeptide enrichment, and multiplexed TMT mass spectrometry. Neurogenic differentiation was characterized by reproducible, bidirectional, and highly site-specific remodeling of reversible cysteine oxidation at discrete regulatory nodes, as well as …
Transcriptomic Analysis Of Xeroderma Pigmentosum Group C Skin Samples, Austen N. Gleave
Transcriptomic Analysis Of Xeroderma Pigmentosum Group C Skin Samples, Austen N. Gleave
Theses and Dissertations
Xeroderma Pigmentosum is a rare genetic disorder caused by defective DNA damage repair enzymes. This condition results in an increased risk of developing skin cancer and other symptoms in those affected. In this thesis, we examined the effects of Xeroderma Pigmentosum on gene expression in patient skin biopsy samples. To accomplish this, we utilized statistical analysis of spatial transcriptomic and single-cell RNA sequencing techniques to discover differences between patient and heterozygous carrier skin samples. We found that the skin samples from Xeroderma Pigmentosum patients showed elevated levels of inflammation, immune activation, and cellular stress, while the carrier skin samples leaned …