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Do the differences in size between heteromorphic sex chromosomes influence organism longevity?

March 21, 2024 12:00 AM
Authors: Olivia Frary, Carl Hjelmen. Mentors: Carl Hjelmen. Insitution: Utah Valley University. Previous work has shown that there are significant differences in lifespan between sexes of the same species. Whether it is an XY or ZW system, the heterogametic sex dies earlier. There are thought to be many factors that contribute to the difference in lifespan between the sexes. This research aims to investigate this relationship further by digging deeper into the degree of differences between the heteromorphic sex chromosomes. We want to determine whether the degree of differentiation correlates with the lifespan differences in species. The comparison of total genome size between the sexes of multiple species are used to find the difference in the size of their sex chromosomes, which is then compared to longevity data on the species to determine a relationship. This genome size data comes from publicly available databases and literature. These comparisons are made using comparative phylogenetic methods in order to account for evolutionary relatedness utilizing a newly constructed phylogenetic tree. All analyses are completed in R and include PGLS (Phylogenetic Generalized Least Squares) and measures of phylogenetic signal (Pagel’s lambda, Blomberg’s K). We will discuss the results of the comparative phylogenetic analyses and any patterns seen regarding longevity.

Towards the Development of at-home cell-free diagnostics to personalize treatment and improve the survival rates of Acute Lymphoblastic Leukemia

March 21, 2024 12:00 AM
Authors: Garrett Johnson, Tyler Free, Brad Bundy. Mentors: Brad Bundy. Insitution: Brigham Young University. Acute Lymphoblastic Leukemia is the most common form of childhood cancer. Asparaginase treatment has greatly improved survival rates to 80%. Survival rates increase by an additional 10% when diagnostic treatment monitoring is used to guide treatment administration. Cell-free protein synthesis is a technology capable of detecting Asparaginase in human serum. However, RNases from human samples destroy CFPS activity. RNase inhibitor can be produced at a low cost by the CFPS system to rescue in-vitro protein synthesis activity to enable biosensing. This work reports our work toward developing an at home Asparaginase diagnostic that would enable personalized dosing of Asparaginase and further improve survival rates of Acute Lymphoblastic Leukemia.

Do Examples of Unethical Conduct Improve or Undermine Ethics Training in Psychology

March 21, 2024 12:00 AM
Authors: Joshua Parmley, Acacia Overono. Mentors: Acacia Overono. Insitution: Utah Valley University. Since its founding over a century ago, the American Psychological Association has adopted several distinct roles in its ongoing pursuit of legitimacy, stability, and growth for the field of psychology. Two of its most important roles include the establishment and enforcement of an ethics code and the standardization and development of undergraduate education. These two goals are related; the best way to uphold an ethics code is to ingrain that code into future researchers and practitioners. The APA Guidelines for the Undergraduate Psychology Major 3.0, which lists the APA’s ideal learning objectives for undergraduate programs, attempts to do just that. In its section on ethics training, it places a great degree of responsibility on undergraduate programs to prepare students for a world of bad actors, exploitative systems, and ethical grey areas. To achieve this, the document recognizes that students must develop an ethical skill or proficiency, not just a knowledge of the codes and principles. Unfortunately, Guidelines recommendations for achieving that goal quickly become clouded, as the document wrestles with the various concerns about teaching ethics. Primarily, the Guidelines section on ethics seems conflicted about whether instructors should give students historical examples of psychologists and psychology systems engaging in unethical behavior The Guidelines expresses the concern that presenting students with examples of ethical failures by psychologists will distract students from the learning outcomes or lead them to view the field negatively and abandon it altogether. Accordingly, the APA tentatively recommends that negative examples be shared cautiously, alongside examples of the positive achievements of the field and ethical systems in place. Are the APA’s fears that blunt ethics courses could turn students away from the major valid? Or do the Guidelines recommendations put too little faith in their instructors and students? This study seeks to examine the validity of the APA’s concerns and the efficacy of their recommendations. One hundred and fifty Intro to Psychology students will be divided into three groups. Each group will be instructed in the principles of the APA ethics code using a) no historical examples, b) a balance of negative and positive examples, or c) several negative examples. Participants will then take a survey that measures their ethical proficiency, their memory of the material, and their confidence in the field of psychology. Measurement of ethical proficiency will be adapted from APA measurement tools. We predict that the group instructed with several negative examples, without balancing positive examples, will result in greater measurements of ethical proficiency, better recall, and a slightly lowered level of confidence in the field. We predict this based on the idea that reviewing negative examples in the instructional material will provide students with a specific model of ethical decision-making.

Infant Identity Among the Tiwanaku

March 21, 2024 12:00 AM
Authors: Matthew Hovorka. Mentors: Connie Ericksen. Insitution: Utah Valley University. This research project examines evidence of individual identity and personhood among perinates, neonates, and young children in the Tiwanaku culture (Western Bolivia, Chile, Peru, A.D. 500-1100) of the ancient Andes. A multifocal approach is taken in examining the topic, and ethnohistorical and archaeological evidence is examined to create a picture of Tiwanaku conceptions of personhood. Through a comprehensive analysis of burial practices, iconography, and ethnohistorical records, this study sheds light on the nuanced conceptions of personhood and individual identity held within the Tiwanaku culture. By delving into the socio-cultural context and material evidence, this research contributes to a deeper appreciation of the complex beliefs and societal values of this ancient Andean civilization.

The utility of ChatGPT in subspecialty consultation for patients (pts) with metastatic genitourinary (GU) cancer.

March 21, 2024 12:00 AM
Authors: Ayana Srivastava, Gliceida Galarza Fortuna, Beverly Chigarira, Emre Dal, Chadi Hage Chehade, Georges Gebrael, Arshit Narang, Neeraj Agarwal, Umang Swami, Haoran Li. Mentors: Neeraj Agarwal. Insitution: University of Utah. The utility of ChatGPT in subspecialty consultation for patients (pts) with metastatic genitourinary (GU) cancer.Ayana Srivastava, Gliceida Galarza Fortuna, Beverly Chigarira, Emre Dal, Chadi Hage Chehade, Georges Gebrael, Arshit Narang, Neeraj Agarwal, Umang Swami, Haoran LiHuntsman Cancer Institute at the University of Utah, Salt Lake City, UT;University of Kansas Cancer Center, Westwood, KSBackground:Cancer management requires a multidisciplinary approach, often requiring medical consultation from subspecialists. With the advent of artificial intelligence (AI) technologies like ChatGPT, it is hypothesized that these tools may help expedite the consultation process. This study aimed to assess the efficacy of ChatGPT in providing guideline-based sub-specialty recommendations for managing pts with metastatic GU cancer.Methods:In this single-institution, IRB-approved, retrospective, proof-of-concept study, pts with metastatic GU cancer over the past 3 years were screened. Those with at least one consultation referral to subspecialty clinics were randomly selected. ChatGPT 3.5 was given the most recent clinic note that triggered sub-specialty consultation. The AI tool was then asked to provide an assessment and plan. Two physicians independently assessed the accuracy of diagnoses made by ChatGPT and subspecialty physicians. The primary outcome was the consistency of ChatGPT recommendations with those of subspecialty physicians. Secondary Outcomes included potential time saved by using ChatGPT and comparison of medical decision-making (MDM) complexity levels between ChatGPT and subspecialty physicians.Results:A total of 39 pts were included. Their primary diagnoses included prostate cancer (51.3%), bladder cancer (23.1%) and kidney cancer (15.4%). The referred subspecialty clinic included cardiology (33.3%), hematology (17.9%), hepatology (2.6 %), hospice (10.3%), neurology (12.8%), pulmonary (15.4 %), and rheumatology (7.7%). The average waiting time for pts to be seen in subspecialty clinics was 44.9 days (SD = 42.4). Of 39 patient’s charts reviewed by ChatGPT, 30/39 (76.9%) had the same diagnosis with consultant sub-specialties. The average diagnoses made by ChatGPT were 8.2, compared with 3.4 made by sub-specialty physicians (p < 0.0001). The accuracy of diagnoses made by ChatGPT was the same, higher, and lower than human physicians in 10 (33.3%), 3 (10%), and 17 (56.7%) cases, respectively. Consistency of treatment plans between ChatGPT and physicians was found in 18 cases (46.2%). ChatGPT recommended additional workup in 32 cases (85.1%). The average number of words written in consultation notes by ChatGPT was 362.7 (SD = 72.9), which was significantly greater than subspecialty physicians (n = 224.7, p < 0.0001).Conclusions:These hypothesis-generating data suggest the potential utility of ChatGPT to assist medical oncologists in managing increasingly complex pts with metastatic cancer. Further studies are needed to validate our findings.

The Effects of State Anxiety on Face Identification

March 21, 2024 12:00 AM
Authors: Patrick R Davies II. Mentors: Acacia Overono. Insitution: Utah Valley University. While there is a dedicated area of the brain for recognizing faces, the efficacy of recognition tasks can vary depending on the context under which they’re performed. The existing literature is undecided on whether anxiety helps or harms tasks relating to emotional content recognition, and some studies have taken steps into researching memory as an additional layer to these recognition tasks. A preliminary study was performed with 16 participants using virtual reality to study the effects of acute anxiety on the ability to correctly identify faces. Participants played either a brief horror game or a brief virtual sandbox in order to induce a desired emotional state, then were asked to complete a brief paired-face identification paradigm. Initial results show that anxiety strengthens identification of neutral emotionally-valent face pairs. Further results may clarify the relationship between anxiety and face identification processes.

The Newborn Behavioral Observation (NBO) and Its Impact on Early Relationships, Postpartum Depression, and Infant Outcomes

March 21, 2024 12:00 AM
Authors: Tara Caplin, Tiffanee Suhaka, Maria Balaceanu, Peg Bird, Dannelle Larsen-Rife. Mentors: Dannelle Larsen-Rife. Insitution: Utah Tech University. Early parent-child interactions have a profound impact on the developing brain, influencing lifelong emotional and social well-being. This review evaluates the Newborn Behavioral Observation (NBO), a relationship-based neurobehavioral approach for families and infants three months old and younger. The NBO supports newborns, caregiver’s, and families by providing individualized information on their infants' behavior and competencies. It facilitates communication and intersubjectivity between infants and caregivers during a critical developmental period, while reducing maternal postpartum depression (PPD). Research on the association between the NBO, PPD, and infant neurodevelopment is reviewed and evaluated in high-risk populations. Although evidence supports approaches like the NBO, they are not yet standard in early intervention due to clinicians' lack of training in infant mental health. The NBO is a foundational tool for cultivating positive early relationships with beneficial implications for clinician standard care of newborns and families. Keywords: Newborn Behavioral Observation (NBO), early relationships, postpartum depression (PPD), infant development, relationship-based, early intervention.

When One is Loved: Attachment Security and Relationship Quality

March 21, 2024 12:00 AM
Authors: Maria Balaceanu, Dannelle Larsen-Rife, Tara Caplin, Peg Bird, Grace Carsey, Tiffanee Suhaka. Mentors: Dannelle Larsen-Rife. Insitution: Utah Tech University. Attachment theory provides a framework for understanding how early experiences with caregivers influence individuals' emotional and relational development throughout their lives. In addition to understanding how an individual interacts with close others, attachment predicts relationship satisfaction (Gardner et al., 2020). Individuals with secure attachments demonstrate greater adaptability in coping and regulating their emotions, leading to improved socio-emotional well-being. In contrast, those with insecure attachment styles tend to encounter difficulties in socio-emotional adjustment (Gardner et al., 2020). This study will examine how insecure attachment is associated with romantic relationship dissatisfaction, specifically those lasting five years or longer. We focus exclusively on romantic relationships lasting five years or more because in adult relationships, each partner serves as an attachment figure for the other (Diamond et al., 2008). Therefore, spouses have the potential to increase each other's attachment security. This means an initially insecure individual can develop earned secure attachment with their spouse's support. Approximately 300 diverse participants over the age of 18 will be recruited for the study. The Relationship Structures Questionnaire (ECR-RS; Fraley et al., 2011) will assess insecure attachment. The Relationship Assessment Scale (Hendrick, 1988) will assess satisfaction. It is expected insecure attachment will be correlated with lower relationship satisfaction with a romantic partner of five years or longer. Results of the analyses will be presented.

Cryopreservation: The Chilly Future of Biobanking

March 21, 2024 12:00 AM
Authors: Jared Barrot, Mackenzie Burr, Isaac Packer, Peyton Worley, Delaney Anderson, Jack Davis, Jeffrey Okojie, Ken Dixon. Mentors: Jared Barrott. Insitution: Brigham Young University. In cancer diagnosis, drug testing, and treatment, analysis is done almost exclusively on formalin-fixed paraffin-embedded (FFPE) tissue samples, a process known to cause chemical cross-linking, DNA fragmentation, and degradation. With the push for genetic testing and personalized medicine, cryopreservation of tissue samples has started to gain traction in the research community. We utilized FFPE samples and cryopreserved samples, extracted DNA, and compared the samples using three criteria: DNA purity, quality, and yield. DNA yield, measured on nanograms of DNA to milligrams of tissue basis, demonstrated a five times the yield in cryopreserved samples than in FFPE. DNA purity did not show significant differences between a cryopreserved tissue sample versus a FFPE tissue sample, confirming valid use of FFPE storage methods if purity is the only factor; however, DNA quality was significantly better in cryopreserved tissue samples, with nearly twice the DNA quality number (DQN) than FFPE samples demonstrated, with significant portions of longer base pair DNA fragments present, widening the range of molecular applications of the sample. These cryopreserved tissues provide higher DNA quality, a higher percentage of significantly longer DNA fragments, and increased DNA yield from individual samples, confirming that cryopreservation is a better option than FFPE when it comes to choosing tissue preservation and storage methods. More molecular assays and tests can be run, and smaller samples are necessary when utilizing cryopreservation, proving it to be a better option than the “gold standard” of FFPE, particularly in regards to cancer diagnosis, drug testing, and treatment exploration.

Investigating the Role of FBXO21 in Hematopoietic Malignancy

March 21, 2024 12:00 AM
Authors: Danielle Alvarado, Kasidy Weber, Shannon Buckley. Mentors: Shannon Buckley. Insitution: University of Utah. The ubiquitin-proteasome system (UPS) plays a critical role in cancer by regulating the degradation of key proteins involved in cell cycle control, DNA repair, apoptosis, and signaling pathways, making it a crucial mechanism for maintaining cellular homeostasis and preventingtumor development and progression. The expression levels of F-box ubiquitin E3 ligase, FBXO21, correlates with patient survival in several types of cancer, suggesting a role in tumorgenesis. We have previously shown silencing FBXO21 in acute myeloid leukemia (AML) cell lines and patient samples leads to differentiation, slowed tumor progression, increased chemotherapy sensitivity, and altered cytokine signaling. Further, we found that FBXO21 ubiquitinates p85α, a regulatory part of the phosphoinositide 3-kinase (PI3K) pathway, for degradation resulting in altered PI3K signaling. Although PI3K inhibitors are used in cancertreatment, issues like off-target effects, dose-limiting toxicities, and resistance necessitate further research and development for optimized efficiency and minimal negative effects in targeting the PI3K pathway. To further understand the role of FBXO21 in cancer, we utilized shRNAs targeting FBXO21 in various cancer cell lines to identify the role of FBXO21 in cellular proliferation, apoptosis, and alteration of the PI3K pathway. The PI3K signaling pathway is initiated through p85α binding to the catalytic subunit, p110, leading to downstream AKT and mTOR activation. We found knockdown of FBXO21 stabilizes p85α, leading to dimerization of free p85 and decreased PI3K pathway activation. Therefore, we hypothesize that FBXO21 may function as a novel regulator of PI3K signaling, offering an alternative approach to PI3K inhibitors. Our findings suggest that FBXO21 may represent a novel therapeutic target acrossvarious cancer subtypes to target the overactive PI3K pathway. Targeting FBXO21 may enhance the efficacy of current therapies and provide potential benefits for improving patient outcomes in the treatment of cancer, including but not limited to AML

Modeling Glioblastoma's Effect on Neural Networks using Brain Organoids

March 21, 2024 12:00 AM
Authors: Jude Werth. Mentors: Alex Shcheglovitov. Insitution: University of Utah. Glioblastoma (GBM) is the deadliest brain tumor that affects more than 10,000 people a year. Unfortunately, our understanding of the mechanisms disrupted by GBM is extremely limited. We are unable to safely manipulate brain cells in live patients, and the complexity of human brain networks are difficult to recapitulate in animals. This study employs brain organoids, derived from induced Pluripotent Stem Cells (iPSCs), to model the impact of GBM on neural activity. Organoid batches, grown under normal conditions and co-cultured with GBM cells, were monitored using microelectrode arrays (MEA) to record power in frequency bands. Over time, drugs influencing neural activity were introduced. Significant behavioral distinctions were observed between control and GBM-cultured organoids. Under Bicuculline and Tetrodotoxin, power in GBM organoids exhibited dramatic changes compared to the minimal difference in control organoids. Conversely, 4-Aminopyridine induced increased high-frequency activity exclusively in control organoids. Correlating power in frequency bands with spike activity, this study provides insight on how brain tumors influence neural networks, furthering disease comprehension to eventually develop effective treatment for patients.

Transcriptomics Meta-Analysis Identifies Upregulation of Clotting and Fibrinolysis Cascades in Colorectal Cancer Tumors Containing Hereditary PMS2 Mismatch Repair Deficiency

March 21, 2024 12:00 AM
Authors: Trenton M. Gibson, Brett E Pickett. Mentors: Brett E Pickett. Insitution: Brigham Young University. Lynch Syndrome, formerly known as Hereditary Non-Polyposis Colorectal Cancer, is an autosomal dominant condition characterized by non-functional DNA mismatch repair genes, leading to mismatch repair deficiency (dMMR). Individuals with dMMR have an increased risk of developing cancerous tumors with microsatellite instability (MSI). The aim of this study was to investigate significant perturbations in gene expression among different dMMR variants within Lynch Syndrome, specifically focusing on variants in the PMS2, MLH1, and MSH2 loci. We obtained 55 public RNA-seq human colorectal tumor samples with specific germline dMMR mutations and 20 samples of healthy colorectal epithelium from the GENE Expression Omnibus (GEO). These samples were subjected to a robust RNA-seq data preprocessing and analytical workflow, which involved quality control, trimming, read pseudomapping and quantification using Salmon, identification of significant differentially expressed genes using edgeR, and gene ontology enrichment analysis using Camera. Signaling pathway impact analysis (SPIA) was employed to assess gene pathway perturbations. Our results revealed that tumor samples from individuals with germline mutations in the PMS2 MMR gene exhibited transcriptomic profiles indicating upregulation in pathways related to intrinsic and extrinsic prothrombin activation, fibrinolysis, and uPA/uPAR-mediated signaling, in comparison to other tumor and healthy samples. Previous research has established a correlation between these pathways and tumor growth, invasiveness, and metastasis. These findings provide a foundation for further research to explore the interactions between PMS2 and these pathways in influencing tumor development.

An Efficient Microwave Assisted Ullmann-Type Amination of 3- Bromopyrazolo[1,5-a]pyrimidine: Key Intermediate for Preparing 3,6-Di-Amino-Substituted Anticancer Heterocycles

March 21, 2024 12:00 AM
Authors: Bryce Tolman, Jasper Terungwa Iorkula , Justin Singleton, Matt Peterson. Mentors: Matt Peterson. Insitution: Brigham Young University. An efficient method for preparing C-3 aminated pyrazolo[1,5-a]pyrimidines was developed. The method consisted of treating 3-bromopyrazolo[1,5-a]pyrimidine with a wide range of 1° or 2° alkylamines with CuI (20 mol%), L-proline (40 mol%), and Et 3 N (2 equiv) in DMSO under microwave heating conditions (130 °C, 4 hours). C-3 aminated products were obtained in good to excellent isolated yields (54–90%; ave. yield = 77%), and represents the most broadly applicable, non-palladium-catalyzed amination of 3-bromopyrazolo[1,5-a]pyrimidine ever reported. The coupling worked well for unfunctionalized 1° alkylamines such as butylamine, benzylamine, isopropylamine or cyclohexylamine, and more densely functionalized 1° amines with CH 2 - or CH 2 CH 2 -linked heterocycles were also well tolerated (e.g. pyridine-, indole-, thiophene-, and furan-linked methyl- or ethylamine derivatives). 2° Alkylamines such as morpholine, pyrrolidine, and piperidine also reacted well under these conditions. Heating under conventional oil-bath conditions required a more extended reaction time (40 h), but also gave products in good yield (72-76%) for both 100-mg and gram-scale reactions. A pegylated azide (11-azido-3,6,9-trioxaundecan-1-amine) was also coupled in good yield (65% yield microwave), demonstrating compatibility of this methodology for potential click-type applications. Our method is simple and efficient, and avoids drawbacks associated with alternative methods, including long reaction times, limited substrate scope, and required use of air-sensitive/extremely expensive palladium catalysts and specialized synthetic ligands.

Functional Near-Infrared Spectroscopy and Dementia

March 21, 2024 12:00 AM
Authors: Natalia Rubio, Madison Farrer. Mentors: Christopher Anderson. Insitution: Utah Valley University. Functional Near-Infrared Spectroscopy (fNIRS) is a neuroimaging technique used to monitor brain activity by measuring the changes in blood oxygenation levels, especially when presented with stimuli or given tasks. This is due to the principle that active brain regions require more oxygen, resulting in changes of blood flow and concentrations of hemoglobin. These observable results are achieved by diodes placed on the surface of the scalp that emit near-infrared (NIR) light into the skull. The absorption of this light by the hemoglobin in the brain’s blood vessels is then detected, localizing neural activity. Due to its portability and cost-efficient nature, fNIRS is being widely used across various fields of research and clinical applications whereas other neuroimaging methods might be less feasible or practical. Psychologists and neuroscientists are able to utilize fNIRS to understand how different regions of the brain are involved in various cognitive processes. It has been used in studying conditions like Alzheimer's disease, stroke, traumatic brain injury, autism, schizophrenia, mood disorders, and dementia. In the context of dementia research, fNIRS has emerged as a promising tool . While fNIRS has a low spatial resolution with measurements restricted to the outer cortex of the brain, it enables the study of the progression of dementia by providing real-time data and offering relative tolerance to subject motion. In fact, a neuro-clinic in Provo, Utah (Cognitive FX) has been studying the use of this fNIRS technique on patients with dementia while they perform language tasks. Although no patient data will be used in this study, the use of fNIRS as a technique to learn about the progression of dementia is noteworthy. Therefore, following IRB approval I will perform semi-structured qualitative interviews with two neuro-technicians using fNIRS in this clinic. Items will focus on the strengths and challenges of using fNIRS with dementia patients. Additionally, I will shadow these technicians to gain hands-on experience. Qualitative results will be analyzed and presented. It is anticipated that this research project will raise awareness of the use of fNIRS as a technique in neuroscience as well as its potential to benefit those with dementia.

Using Gut Microbiota Derived Metabolites As a Proxy for Gut Permeability and Subsequent Risk of Cachexia 

March 21, 2024 12:00 AM
Authors: Ellie P. Evans, Mmadili Ilozumba, Sheetal Hardikar, Neli Ulrich, Jennifer Ose. Mentors: Mmadili Ilozumba. Insitution: Utah Valley University. Cachexia is a complex syndrome characterized by severe weight loss and muscle wasting. It is also a prevalent complication in various chronic diseases, including cancer and acquired immunodeficiency syndrome. Recent research has underscored the pivotal role of the gut microbiome in systemic well-being. Furthermore, it has been shown that cancer patients suffering from cachexia have unique bacteria composition in the gut compared to that of non-cachectic patients. In the absence of stool samples, there are a few metabolites in the circulatory system that can be directly linked to gut microbiota. Examples include bile acids, and short chain fatty acids as metabolites produced by specific Phylum. The presence of these gut microbiota derived metabolites (GMDM) in the circulation indicate a compromise in the integrity of tight junctions in the intestines. These results prompted an investigation of GMDM as an indicator of gut permeability. Our hypothesis is that an increased concentration of GMDM in the circulation is linked to gut permeability, leading to the development of cachexia in patients with colorectal cancer.  This literature review provides a comprehensive analysis of the relationship between gut permeability and cachexia, seeking to identify which GMDMs are the most accurate indicators of specific bacteria linked to gut permeability, and subsequently, are accurate projectors of cachexia.  Acetic acid, a short chain fatty acid (SCFA) is a GMDM detected in the plasma of patients with gut permeability. Acetic acid makes up about 60% of the SCFAs produced by a healthy gut flora and 90% of it is produced by the genus Bifidobacterium. Our literature review will cover how closely a measurement of acetic acid and other GMDMs measured in plasma can be linked to gut permeability and to Bifidobacterium levels in the gut. Similarly, Indole is a GMDM produced by Escherichia coli and other indole-producing bacteria. Indole isn’t produced naturally anywhere else in the body. When it is naturally absorbed into the liver through the portal vein, it’s mostly converted into indoxyl sulfate. The heightened presence indole in plasma in sulfate-free forms could indicate that indole is being absorbed through holes in the tight junctions of the intestines, rather than through the portal vein. This information would allow cohorts that have collected plasma samples in the past to measure gut permeability by proxy, even if they’re unable to investigate the gut microbiota and metabolites present from stool samples. These connections found could further help us to use-already collected samples to find accurate biomarkers for early cachexia development in cancer patients. If an oral presentation is unavailable, a poster presentation would be great.

Inhibiting CDK9 and Autophagy in Pancreatic Cancer

March 21, 2024 12:00 AM
Authors: Isabella Scalise. Mentors: Conan Kinsey. Insitution: University of Utah.

Elucidating the Role of TOX on Melanoma Cell Migration and Invasion

March 21, 2024 12:00 AM
Authors: Allison Stevens, Gennie Parkman. Mentors: Gennie Parkman. Insitution: Weber State University. The principal genes that are responsible for the conversion of benign nevi, or pigmented lesions, to cancerous melanomas have been discovered and validated. However, we are still identifying the additional genetic alterations that are responsible for the migration and invasion of melanoma cells and ultimately metastasis of these melanomas as that is where treatment needs remain. (Davies, et al., 2002)One gene that has been identified to potentially play a role in the metastasis of melanoma is thymocyte selection associated high mobility group box, or TOX. Based on one study, the levels of TOX gene expression were found to be elevated in melanoma brain metastases versus extracranial metastases (Bierman et al., 2022). These findings have led us to hypothesize that TOX plays a role in the migration and invasion of melanoma into the brain. Preliminary work has been completed to clone our gene of interest, TOX, into an expression vector and transduce mammalian melanoma cells to evaluate their effects on melanoma cell rate growth and migration. These experiments will identify the effect of TOX on the initiation and progression of melanoma cells through in vitro melanoma cell culture and experimentation before potentially progressing to well-validated mouse models of melanoma.

Combined Inhibition of RAF, MEK, and FAK Attenuates Melanoma Brain Metastases and Prolongs Survival in Preclinical Models

March 21, 2024 12:00 AM
Authors: Ana Paulina Medellin-Alvarez, Jared Almazan, Tursun Turapov, David A. Kircher, Karly A. Stanley, Gennie L. Parkman, MiKaela N. Field, Katie M. Culver, Silvia Coma, Jonathan A. Pachter, Howard Colman, Sheri L. Holmen. Mentors: Sheri Holmen. Insitution: University of Utah. Despite promising results from recent FDA-approved therapies, many advanced melanoma patients develop resistance to both immunotherapy and targeted therapy. A common resistance mechanism to targeted therapy is upregulation of the PI3K/AKT signaling pathway, which has also been shown to promote the development of melanoma brain metastases. Historically, AKT inhibitors have failed in the clinic due to their limited efficacy or intolerable toxicity. Proteomic analysis comparing non-metastatic vs brain metastatic primary tumors in mice revealed focal adhesion kinase (FAK) as an AKT1 specific effector and a potential alternative therapeutic target. FAK is a non-receptor tyrosine kinase that localizes primarily to focal adhesions to regulate cell migration. To determine whether targeting FAK alone or in combination with the RAF/MEK inhibitor avutometinib reduces brain metastases and prolongs survival, we utilized both autochthonous and syngeneic melanoma mouse models. Mice with either subcutaneous tumors or established brain metastases were treated with FAK inhibitor, RAF/MEK inhibitor, or the combination of FAK and RAF/MEK inhibitors. Each cohort was assessed for tumor onset, growth, metastasis, and survival. Our results show that combined RAF/MEK/FAK inhibition significantly delays tumor onset, causes regression of established tumors, prevents the development of brain metastases, promotes the regression of established brain metastases, and prolongs survival. In addition, patient-derived BRAF V600E melanoma xenograft mouse models resistant to the BRAF inhibitor dabrafenib and the MEK inhibitor trametinib, were sensitive to combined RAF/MEK/FAK blockade. The addition of the BRAF inhibitor encorafenib to these models further enhanced the effect on tumor growth. These results support the initiation of a clinical trial evaluating the efficacy of the RAF/MEK inhibitor avutometinib in combination with the FAK inhibitor defactinib in patients with brain metastases from cutaneous melanoma. Additionally, we are assessing non-canonical roles of FAK in modulating the tumor microenvironment to determine whether avutometinib and defactinib also enhance the efficacy of immune checkpoint inhibition in this disease.

Synthesis and Optimization of Novel Macrocylic TRK Inibitors For Treating Drug-Resistant Cancers

March 21, 2024 12:00 AM
Authors: Matthew Stecher, Terungwa Iorkula, Matt A. Peterson. Mentors: Matt A. Peterson. Insitution: Brigham Young University. Tropomyosin Receptor Kinase (TRK) inhibition has become an effective therapeutic approach for treatment of a variety of cancers including soft tissue sarcoma, pilocytic astrocytoma, non-small cell lung cancers, colorectal cancers, glioblastomas, pediatric gliomas, papillary thyroid cancers, and secretory breast carcinoma. Despite the successful use of first-generation TRK inhibitors Larotrectinib and Entrectinib which have shown significant therapeutic response in patients, acquired resistance to these drugs has emerged and is creating serious barriers to maintaining long-term therapeutic efficacy. A common mechanism for acquired resistance is associated with the emergence of mutations. Hence, mutation-induced drug resistance continues to be a major challenge for both first- and second-generation TRK inhibitors. Here, we present the design of novel macrocyclic 3,5-diaminated pyrazolo[1,5-a] pyrimidine ligands with high potential for combating drug-resistant disease.

Drawing on Memory

March 21, 2024 12:00 AM
Authors: Corin Marsh, Acacia Overono. Mentors: Acacia Overono. Insitution: Utah Valley University. A variety of memorization techniques have been shown to enhance the ability to recall important information. While many of these techniques focus on repetition and retrieval of verbal information, the drawing superiority effect (DSE, Wammes et al., 2016) is a phenomenon where drawing leads to better recall compared to re-writing. The present study investigates the extent of these findings by combining the DSE with retrieval practice. This experiment utilized a within-subjects, single-blind design consisting of 32 undergraduate students ranging in age from 18 to 42. Participants were tasked with learning 20 vocabulary terms through a guided slideshow, then studied terms through; reading definitions (verbal restudy), viewing images of the definitions (visual restudy), writing definitions (verbal retrieval), and drawing definitions from memory (DSE with retrieval). After a brief distractor task, participants were tested on their recall of the definitions. Finally, subjects completed a shortened version of the Vividness of Visual Imagery Questionnaire (VVIQ) and a funnel debrief. Preliminary analyses using a repeated measures ANOVA revealed that re-reading was the study method that resulted in the highest recall scores (M = .57) compared to all other conditions (F (3, 93) = 14.9, p < .001, ηp2 = .324). Further — VVIQ ability showed no significant correlation with participant scores for any of the study methods. These results indicate that re-reading was a more effective study strategy for memorizing vocabulary terms with a short delay when compared to viewing images, writing definitions, and drawing definitions from memory. Future work will examine how longer delays and providing feedback influence may modulate the benefits of re-reading, drawing, and retrieval as study strategies. Keywords: drawing superiority effect, retrieval practice, memory, VVIQ

"Cognitive Insights into Madagascar Hissing Cockroaches: Memory, Learning, and Motivated Behavior"

March 21, 2024 12:00 AM
Authors: Brandon Barlow, Ethan Reese, Victoria Vazquez, Abbi Stark, Monica Sanchez, Alex Wilson, Rain Evans, Josef Becker, Amy Chevrier, James Taylor. Mentors: James Taylor. Insitution: Utah Valley University. This study focuses on memory and learning observed in Madasgascar Hissing Cockroaches (MHC). Research on insects can be used to inform our understanding of behavior and cognitive processes and add to our existing knowledge about the studied species. While there is existing literature focused on memory and learning in many insects, cockroaches are often chosen as a model due to their adaptability, resilience, and availability. Little research on MHC currently exists, especially in regard to memory and learning or drug seeking behaviors. This study uses a mixed model design, looking at arm choice percentages and latency to choose, between the control and experimental groups and comparing trials for each subject. In earlier trials, MHC demonstrated behavior that indicated they had learned not to fear light, a naturally aversive stimulus for cockroaches. Building on data collected in earlier trials, we developed a new protocol to evaluate the MHC associative learning behaviors and to test drug-seeking as a motivated behavior. Subjects are individually tested in a T-shaped apparatus in which they have to choose an arm to go into or are timed out. Each arm has a specific reward, either a sucrose and ethanol solution (experimental group) or plain sucrose solution (control group) in the left arm, and plain sucrose solution (experimental group) or water (control group) in the right arm. Each subject is run 2 days (6 trials per day) in these conditions, and then 3 days with the left arm lengthened to test if the subjects will seek their preferred reward even if it requires traveling a greater distance.

Characterization of an Acousto-optic Modulator for Implementation in a Q-switched Nd:YVO4 Laser

March 21, 2024 12:00 AM
Authors: Benjamin Holt. Mentors: York Young. Insitution: Utah Valley University. Our research group aims to create an optical system which generates tunable longwave infrared (LWIR) light as a tool for early detection of disease-indicating molecules in human tissue. This system begins with our newly constructed Nd:YVO4-type laser which generates between five and seven watts of continuous wave optical power in the near IR spectrum. This laser light will be used to drive the subsystem responsible for generating LWIR light: an optical parametric oscillator. In order for wavelength conversion to occur via a non-linear process, the near IR laser power serving as an optical drive must have an intensity on the order of tens of MW/cm2. To achieve such intensities the laser power must be concentrated into high intensity nanosecond length pulses by Q-switching the laser. Our method of Q-switching the Nd:YVO4 laser will be via an acousto-optic modulator in the laser cavity. My work to design the modulator’s kinematic mount, cooling system, and RF driver (as well as characterizing the performance of the modulator for use as a laser Q-switch) is described in this presentation.

The ABC conjecture and Mason's Theorem

March 21, 2024 12:00 AM
Authors: Juan Palencia, Tanner Probst, Clair Yeaman. Mentors: Machiel Van Frankenhuijsen. Insitution: Utah Valley University. Abstract: The ABC conjecture is an unsolved problem in mathematics first formulated by Joseph Oesterlé and David Masser. The conjecture attempts to show an analogy between polynomials and integers. This insight arises from the Stothers-Mason Theorem (also known as Mason’s Theorem). The theorem states that the maximum degree of a polynomial is always equal to or less than the number of distinct roots minus one. The ABC conjecture attempts to bridge this analogy by defining the height as the maximum algebraic number in the sum a + b = c where a, b and c are relatively prime. Masser and Oesterle define the radical as the sum of log p where p divides abc. Mason’s theorem states that the height is less than the radical minus one. It turns out that this is not true for the integers. Thus Masser and Oesterle formulated a conjecture which may be true. Over the past decades, this inequality has been strengthened and reformulated. Shinichi Mochizuki has recently published what he claims to be a proof of the conjecture, but many mathematicians are currently still working to understand it. The aim of our research is to better understand the height and radical in the ABC conjecture. In addition, we intend to explore the possibilities of expanding the Stothers-Mason Theorem. Since the ABC conjecture is concerned with an analogy between commutative rings (integers and polynomials), we are interested in seeing whether Mason’s Theorem for polynomials also holds for non-commutative rings, such as matrix rings and the ring of quaternions. In addition, we intend to explore the connection between the factorization of polynomials and finite Abelian groups.

Investigating the relationship between natural environment and drosophilid genome size.

March 21, 2024 12:00 AM
Authors: Samantha Curnow, Carl Hjelmen. Mentors: Carl Hjelmen. Insitution: Utah Valley University. The genome sizes of insects vary immensely; some insects have only 100 million base pairs, while others reach nearly 18 billion base pairs. Many selective pressures can have an influence on genomes, but we still lack a clear understanding of which selective pressures cause such variation in genome size even within well-studied groups. To determine the influence of environmental factors on this variation, we investigate the relationship between genome size and the average natural environment of 152 Drosophila species. The nature of the relationship between genome size and environmental factors is investigated using phylogenetic models and linear analyses such as phylogenetic generalized least squares analysis. We collected data from peer-reviewed papers and publicly available datasets, such as karyotype.org and WorldClim, to compare the genome size of each species to the temperature, altitude, humidity, etc. of their natural environments using linear phylogenetic models. The distribution of these species was also visualized using geographic and biological analysis packages in R, such as geodata, to extract environmental data of specified regions, and phytools in combination with caper to run phylogenetic comparative analyses.

Groundwater and Surface Water Interactions on the Hobble Creek Watershed

March 21, 2024 12:00 AM
Authors: Roshan Abraham, Parker Jorgenson. Mentors: Daren Nelson. Insitution: Utah Valley University. Hobble Creek is an essential and valuable stream that the City of Springville and other local entities utilize for their water supply. However, the stream is also vital to the local environment and ecosystem since it one of the main streams that the June Sucker (an endangered endemic fish) spawn in each year. Numerous environmental projects and studies have been done in the lower section of Hobble Creek due to this importance. There are many springs in the region that provide water to the stream but there is a lack of consistent monitoring of the flow throughout the stream to determine how the stream is interacting with groundwater sources. Groundwater models completed by the United States Geological Survey in 2005 for the Utah Lake Watershed suggest locations where groundwater interactions should be either discharging or recharging the local aquifer. However, more recent data has suggested that many of these water interaction maps created by the USGS model are inaccurate. Using a water budget analysis, streamflow in the creek is being measured at 10 sites throughout the Hobble Creek Watershed to determine how the flow in the creek changes as it flows towards Utah Lake. Data gathered from this and previous studies show the zones of discharge and recharge shift seasonally and are not as consistent as the USGS model suggests. Recent data does confirm that Hobble Creek is gaining flow upstream and losing flow downstream, but there are portions of the river that also may be perched (do not interact with the groundwater). Further measurements and continued site investigation will be necessary to help us better manage this vital water resource.

Groundwater and Surface Water Interactions in the Provo River Watershed

March 21, 2024 12:00 AM
Authors: Feyan Hoffman, Roshan Abraham, Christine Fowles, Abi Conger, Scott Jenson. Mentors: Daren Nelson. Insitution: Utah Valley University. One of the least understood part of our local water budget is the interaction of groundwater into our lakes and streams. Groundwater models completed by the United States Geological Survey in 2005 for the Utah Lake Watershed suggest zones where groundwater interactions should be either discharging or recharging into our local streams, wetlands, and other water bodies. However, more recent data has suggested that many of these water interaction maps created by the model are inaccurate, and we need a better understanding of how groundwater interacts with these water bodies. Using a water budget analysis, groundwater and surface water interactions are measured by collecting discharge measurements using flow meters at different cross sections along the Provo River and its tributaries. A gaining or losing stream may swap depending on seasonal changes, such as a particular water year being dry or wet–a stream that is typically gaining may be recharging the aquifer during a dry year. The USGS model is a good basic representation of interactions between groundwater and surface water. Our data suggests that due to highly variable water levels of Utah Lake and local groundwater levels, some discharge and recharge zones in the Provo River subbasin are likely to change over time. In addition, some sections of the river may be perched and not interact with the groundwater system at all. In order for us to better manage these important resources, further analysis of flow behaviors in the Provo River and its tributaries need to be completed. This study is part of a larger study that includes adding two new permanent flow gauging stations to provide a long term record that will enable water managers to better decipher why the groundwater and surface interactions are not fitting the USGS model.

Improved low-cost, solar water purifier to reduce clean water scarcity

March 21, 2024 12:00 AM
Authors: Fatoumata N'diaye, Kevin Shurtleff. Mentors: Kevin Shurtleff. Insitution: Utah Valley University. The use of solar energy for water purification purposes has proven to be an efficient tool with promising results which could help tackle the issue of water scarcity in developing regions of the world. The low-cost, solar water purification system built previously will be improved through increasing thermal conduction, enhancement of the water flow uniformity, strengthening of the piping system, increasing airflow inside the water purification system, and thus maximizing the clean water production rate. We used aluminum foil as the condensation surface with silicone caulk as a binding agent between the materials. We used ultra-violet resistant greenhouse plastic film to protect the purifier overall from sunlight damage. We measured the incident solar irradiance, airflow inside the purifier, temperature of the evaporation side, temperature of the condensation side, ambient temperature outside, conductivity of the dirty and clean water, and clean water quality/taste. Finally, we compared this data to previously collected data.

Thermoacoustic Heat Engine

March 21, 2024 12:00 AM
Authors: Euiyoung Kim, Bonnie Anderson. Mentors: Bonnie Anderson. Insitution: Utah Valley University. A thermoacoustic engine is designed to transfer heat energy into sound energy. Heat engines have a hot side (hot heat exchanger) and a cold side (cold heat exchanger) and use part of the heat flowing between them to do work. The engine in this study is shaped like a bottle with copper wire mesh heat exchangers in the neck. A heating element wrapped around the top of the neck supplies heat to the hot side and the base of the bottle is made of aluminum to keep the cold side at room temperature. When the temperature on the hot side reaches a threshold the sound wave is created. The heat goes from the mesh of the hot side into the “stack” (steel wool, in this case) and down to the cold mesh. The motion of air as it picks up and drops off heat along the stack excites the engine into one of its resonant frequencies. Different mesh configurations of the heat exchangers were tested to determine the impact on the acoustic properties of the engine. Principal Component Analysis was used to determine which parameters of the mesh affected the acoustic pressure the most. The outcomes of this research not only contribute to the emerging field of thermoacoustics but also provide valuable knowledge for the development of thermal sensors and electric energy in remote locations.

DMS-MapSeq analysis of 3' UTR in Human Genome

March 21, 2024 12:00 AM
Authors: Silvi Rouskin, Matthew Allan, Dragui Salazar. Mentors: Merrill Halling. Insitution: Utah Valley University. A 3’ untranslated region (UTR) is a non-coding region between the stop codon and the 3’ end of an mRNA. 3’ UTR can regulate post-transcriptional gene expression by influencing mRNA stability, translation, and localization. They fold into complex structures that contain elements and binding sites that interact with various molecules, including proteins and microRNAs (miRNAs). Despite the recognized importance of 3’ UTRs and their structural features, the vast majority of their structures in humans remain unknown. Indeed, the structures of long RNAs in general have been difficult to solve due to their heterogeneity and to the paucity of known, ground-truth RNA structures for training and validating models. This project aims to circumvent these limitations by characterizing the structures of 3,000 to 4,000 human 3’ UTRs. The project can be simply described as follows. The cDNA is received and prepared for PCR with the needed primers. After the PCR, genetic material is transcribed into RNA where dimethyl sulfate mutational profiling with sequencing (DMS-MapSeq) will be introduced. After this, it is reverse transcribed and prepared for sequencing. The project implements thousands of primers to facilitate the comprehensive identification of genes. The vast dataset of structure profiles will be used to develop an advanced machine learning algorithm to predict first the DMS-MapSeq results and eventually the structure of an RNA solely from its sequence. The preliminary results show that it is possible to determine hundreds, even thousands of 3’ UTR structures using DMS-MapSeq and the creating an accurate image of such structure. These results also contain druggable pockets that can be used in RNA based therapeutics in a near future.

Analysis of Super-Black Coatings versus Black Paints

March 21, 2024 12:00 AM
Authors: Tyler O'Loughlin, Tyler Daynes, Erik Prazak. Mentors: Dustin Shipp. Insitution: Utah Valley University. In the realm of photon interactions with surfaces, the reflection and refraction of light depend significantly on the micro and macrostructures of the surfaces. Despite the use of various methods to attenuate light, their effectiveness remains a subject of interest. In this study, we delve into the properties that render super-black coatings, such as Vantablack, exceptionally dark compared to coatings with distinct surface characteristics but significantly altered amplitudes of reflected intensity. Our research focuses on understanding the optical properties of Vantablack; in particular, we investigate the role of the carbon nanotube microstructure in achieving its unique light-absorbing properties. Through a comprehensive analysis of our samples, we have uncovered that the carbon nanotube microstructure of Vantablack contributes to its remarkably low reflective intensity and exceptional absorption across all wavelengths of light. Notably, Vantablack displays such a high optical density that even at Brewster's angle, a reflection is virtually undetectable. This research sheds light on the intriguing properties of Vantablack and has implications for a wide range of applications where light absorption and reflection play a critical role.

Detection of a DNA Virus in Ornamental Plants at Utah Valley University

March 21, 2024 12:00 AM
Authors: Jaylee Montague, Skylar Belka, Gabe Espinoza, Geoff Zahn, Alma Laney. Mentors: Alma Laney. Insitution: Utah Valley University. In May of 2022, a several unidentified trees on Utah Valley University (UVU) campus property exhibited severe virus-like symptoms including: mosaic patterning; yellowing, curling, deformed leaves; and flaking bark. Due to the presence of unidentified aphids and after a literature search, we began investigating the sample for a +ssRNA virus. Extensive testing and RNA sequencing using the MinION v9.4.1 and the cDNA PCR Barcoding kit revealed that neither a ssRNA nor a dsRNA virus were present in the samples, thus, it was suspected that a DNA virus could be the cause. We utilized Rolling Circle Amplification (RCA) on extracted DNA. Following the RCA, gel electrophoresis revealed a strong amplicon larger than 10 kb, suggesting the presence of a DNA virus. Sequencing of the viral genome from the RCA product using the MinION vs10.4.1 chip showed that the mulberry did contain baculoviruses and large DNA viruses. Unfortunately, though, the MinION did not get results for DNA plant viruses, so we sent samples for RNAseq on the Illumina NovaSeq, with results still pending. This is significant since it is likely that the other symptomatic plants near these trees—including redbud and spirea—were infected with the same virus due to RCA amplification in those samples and the presence of the same potential aphid vector. Mechanical inoculations to several herbaceous hosts were done using infected spirea tissue. Furthermore, to our knowledge this is the first report of a DNA virus infecting spirea and redbud in the United States.

Assessing Genomic Diversity Via whole genome resequencing in bean cultivars (Phaseolus L. spp.) from Brazil, a putative secondary center of diversity.

March 21, 2024 12:00 AM
Authors: Kaycie A Melville, Ashley N Egan, Yu Ya Liang. Mentors: Ashley N. Egan. Insitution: Utah Valley University. Phaseolus vulgaris (common bean) and P. lunatus (lima bean) provide protein and nutrition for millions of people across the globe. Native to the New World, these cultivated species present unique histories of multiple and independent domestications in Mesoamerica and the Andes. Brazil is the leading producer globally of these beans. With both wild and cultivated landraces present, Brazil may act as a secondary center of domestication for these two economically significant leguminous crops. Brazil's indigenous populations’ cultivation efforts may include both wild and cultivated germplasm, potentially contributing to the continued domestication of these crops to create novel shapes, sizes, and colors that are grown and hand-selected by the natives in these regions. To investigate Brazil as a secondary domestication center of beans, this research addresses several key questions: Are signals of past and current domestication processes discernible in current Brazilian cultivars of these species? Can we unravel the relationships between these Brazilian crops and their primary centers of domestication? What genetic differences are underpinning domestication? How diverse are Brazilian cultivars? How do they relate to wild and related material and species? This work focuses on 48 accessions of P. lunatus and P. vulgaris from Brazil, including wild material and two accessions from two related species, P. polystachios and P. filiformis from North America. Whole genomes were resequenced using Illumina sequencing and compared against the published genome of Phaseolus vulgaris to identify SNPs in each accession. Whole chloroplast genomes were also assembled and compared. Phylogenetic analyses, network analyses, population structure, and tests for neutral and positively selected mutations were conducted, revealing distinct clades for both P. vulgaris and P. lunatus with clear links to their Andean and Mesoamerican origins. Genetic diversity was assessed both within (cultivated vs wild) and between P. vulgaris and P. lunatus, demonstrating significant variations, not only between species but also within each species, suggesting the influence of diverse selection pressures and local adaptation during the domestication process. McDonald-Kreitman tests analyze and locate possible domestication genes from the library of SNP’s between outgroups (Phaseolus filiformis and Phaseolus polystachios) and between species. Overall, this research advances our understanding of the intricate process of domestication in P. vulgaris and P. lunatus, highlighting potential ongoing domestication in Brazilian cultivars, unraveling their genetic relationships, and shedding light on the complex interplay of genes that underpin domestication and diversity. These findings contribute to the broader understanding of crop evolution and have practical implications for crop improvement and conservation.

Does Greater Phylogenetic Distance Affect Competition Outcomes in Fungal Communities?

March 21, 2024 12:00 AM
Authors: Joshua Stubbs, Annette Lewis, Kendall Holcomb, Barbara Suassuna Schincariol. Mentors: Geoffery Zhan. Insitution: Utah Valley University. Does Greater Phylogenetic Distance Affect Competition Outcomes in Fungal Communities?Annette Lewis, Kendall Holcomb, Bárbara Suassuna Schincariol, Josh Stubbs, Geoffery Zahn PhDFungi play a critical role in decomposition, affecting nutrient cycling at a global scale. Saprotrophic fungi competitively decompose dead organic matter. However, the role of phylogenetic relatedness on interspecific competition in fungal communities has not received much attention. The theory of phylogenetic over-dispersion suggests that species within a community tend to be less related than expected by chance, therefore limiting competition due to functional redundancy. Similarly, Darwin’s naturalization hypothesis suggests that taxonomically distinct invaders might experience reduced competition and resistance. In this study, we chose three different saprotrophic fungal species with varying relatedness: Aspergillus niger and Fusarium keratoplasticum (from the same family), and Pleurotus ostreatus (from a different phylum). These species were chosen based on decomposition abilities and phylogenetic distances. These species were cultured and placed in seven combinations to assess their ability to decompose and compete as individual fungal populations and as combined communities (e.g., A, B, A+B, B+C, and A+B+C). Each species was placed near a sterilized piece of paper such that competition was evaluated by analyzing the paper coverage in Petri dishes over three weeks. Each Petri dish was analyzed individually based on the average percentage of paper covered and, within combined communities, the percentage of paper each species covered. Interactions between each species and the percentage of the paper covered was recorded for further analysis. Assessing paper coverage allows for the observation of any potential competitive inhibition of decomposition. We hypothesize that decomposing and competitive abilities would be the strongest with A. niger. Despite the fast growth rate of A. niger individually, preliminary results suggest that it was outcompeted when paired with other species. This research highlights the potential nuances in fungal community interactions influenced by phylogenetic relationships, shedding light on the principles of phylogenetic overdispersion and Darwin’s naturalization hypothesis.

Identifying and Monitoring Groundwater and Surface Water Interactions Utilizing UAVs and Remote Sensing Applications in Wetlands in Utah Lake, Utah

March 21, 2024 12:00 AM
Authors: Anna Wilkinson, Feyan Hoffman, Roshan Abraham. Mentors: Daren Nelson. Insitution: Utah Valley University. Remote sensing technologies, involving drone and satellite imagery, have recently begun to be used in hydrologic research with various applications. The technology is relatively easy to obtain, is noninvasive, and helps minimize cost, access, and safety concerns related to the study of wetlands. The thermal and multispectral imagery can provide unique datasets that expand understanding into groundwater and surface water interactions. As part of this project, we are exploring remote sensing applications within the hydrology of wetlands surrounding Utah Lake, a large freshwater lake within Utah Valley. The project has involved the collection of thermal and multispectral drone imagery from 2021 to 2023. Thermal imagery collected in these areas has assisted in the determining of hot and cold spring locations and how these springs have shifted due to changes in groundwater levels and lake levels. In addition, this imagery has shown how physical anthropogenic influences have also impacted the location and stream channels associated with these springs. Multispectral imagery is used to understand the health of phreatophytes near the lake during dry and wet years to be used as an indicator for groundwater level changes. Even though much of the data is still preliminary and part of a long-term study these remote sensing technologies are already showing how these groundwater systems adapt to seasonal and anthropogenic changes.

The Ethnobotanical link between Tropane Alkaloids and Datura

March 21, 2024 12:00 AM
Authors: Cole Statham, Katelyn Thomas. Mentors: Michael C Rotter. Insitution: Utah Valley University. Datura (Solanaceae) is a potent hallucinogenic genus of plants that has varied uses across cultures. Tropane alkaloids in these plants are potent compounds that, depending on dosage, can offer the user a psychoactive experience or cause severe reactions including death. For some, Datura is little more than an ornamental flower or an ideal source to have a psychedelic experience. While for others it is a sacred plant, used on special occasions, and only permitted to be handled by those who have been prepared and trained to do so. An explanation for these cultural differences could be that cultures with taboos surrounding this plant are likely those that have species of Datura with variable levels of tropane alkaloids, while cultures without taboos are likely to have species with consistent levels of tropane alkaloids. Here we focus on six species of Datura using literature reports of tropane alkaloid contents and compare the variability in these phytochemicals to cultural uses of these plants. We predict that societies with cultural taboos will be more likely to be those with species that have higher variability in tropane alkaloids.

Variability in mechanical seizure induction methods using Drosophila melanogaster (fruit flies) as a model organism

March 21, 2024 12:00 AM
Authors: Vy Dao, Devin Taylor, Danielle Taylor. Mentors: Devin Taylor, Danielle Taylor. Insitution: Utah Valley University. Epilepsy is one of the most common neurologic disorders affecting about 60 million people worldwide (Chen et al., Poduri and Lowenstein, 2011). Currently in the field, there are various methods being used for mechanical seizure induction using Drosophila melanogaster. This variability makes it difficult to compare findings from different research studies. We employed various mechanical seizure induction techniques currently used in Drosophila epilepsy research. We focused on both group testing as well as individual testing using different anesthesia parameters. For individual testing, epileptiform activity and locomotor activity were recorded in adult male Drosophila through mechanical seizure induction using a vortex assay at either 24-hours post- or 1-hour post-CO2 anesthesia. We also evaluated the time for 50% of adult drosophila recovery as indicated by a group climbing assay (10 flies per group) following mechanical seizure induction using a vortex assay at either 24-hours post- or 1-hour post-CO2 anesthesia. Finally, for each of the above testing parameters, we not only tested wild-type (WT) flies, but also multiple positive control seizure phenotype flies commonly used in mechanical seizure induction studies using Drosophila melanogaster. We found significant effects in both CO2 induction methods as well as in different genetically induced seizure phenotypes.

A look at Suicidality Among Various Demographics at Southern Utah University

March 21, 2024 12:00 AM
Authors: Maggie Smith, Bryan L Koenig. Mentors: Bryan L Koenig. Insitution: Southern Utah University. Nationwide, Utah ranks 14th for suicide rates (CDC, 2021). To help prevent suicide, understanding suicidal ideation differences among certain populations such as sexual, ethnic, and racial minorities is important. One study found that LGBTQ+ individuals are three times more likely than non-LGBTQ+ individuals to attempt suicide at some point in their lives (di Giacomo et al. 2018). Religious background has also been connected to suicidality. Sterling and colleagues (2002) discovered that active LDS males aged 15–34 years have a lower risk of suicide compared with both less active LDS members and non-LDS individuals. Whereas some studies have samples of diverse ages and locations, research on suicidality among college students specifically in Utah is lacking. The purpose of the present research is to assess how demographic variables such as religious identity, biological sex, sexual orientation, gender identity, and racial/ethnic identity are connected to suicidality at a regional university in the Southwestern United States, Southern Utah University. In this study, 1,397 SUU Students took at least one of two surveys that asked about mental health variables and demographics. Suicidal ideation was measured using the Suicidality Suicide Behaviors Questionnaire Revised (Osman et al., 2001). Results indicate that the more minoritized identities students had, the more likely they were to be suicidal. Other findings include that LGBTQ+ students were very likely to be suicidal, cisgender students were less likely to be suicidal, and female students were more likely than male students to be suicidal. Additionally, suicidality was lowest among LDS students and highest among non-religious participants.

Genomic Analysis of Male Reproductive Skew in Bornean and Sumatran Orangutans

March 21, 2024 12:00 AM
Authors: Gabriel Hammond, Rebecca Seegraber, Tim Webster. Mentors: Tim Webster. Insitution: University of Utah. Bornean and Sumatran orangutans demonstrate pronounced differences in their social behavior. All orangutans are more solitary than other apes and monkeys, but Bornean orangutans are even less social than their Sumatran counterparts. This contrast is generally attributed to differences in forest productivity between the two islands, as feeding competition is a major cost to social behavior. Variation in sociality between the two species directly impacts male reproductive skew, or the extent to which males can monopolize reproductive success. Sex-biased demographic phenomena such as male reproductive skew can be reconstructed across a lineage’s history by comparing genetic variation across different regions of the genome. Autosomes and the X chromosome are inherited in different proportions, in a population with an equal sex ratio, four autosome copies will be passed down for every three X chromosomes. Deviations in genetic diversity from this expected ratio can be indications of sex biased demographic events. This project is leveraging differential inheritance of chromosomes to explore the role of orangutan socioecology in shaping male reproductive strategies through genomic analysis of reproductive skew across Bornean and Sumatran orangutans.

The Relationship Between Sleep, Attachment, and Social Support

March 21, 2024 12:00 AM
Authors: Kendra Johnson. Mentors: Dannelle Larsen-Rife. Insitution: Utah Tech University. This study's objective is to examine how sleep quality is related to attachment and any moderating effect from social support. Sleep quality affects multiple aspects of life including physical and mental health. About 40% of the population is affected by sleep complaints (Palagini et al., 2018). Over time, disturbed sleep can become a risk factor for mental illness and substance use disorders (Adams et al., 2014). According to Gur-Yaish et al., (2020), negative interactions related to attachment disturbances negatively affected sleep quality. Individuals with insecure attachment may be more prone to insomnia and sleep disturbances (Palagini et al., 2018). People with anxious attachment have difficulty trusting that others will be there for them when they are in need. Insecure attachment is measured on two scales: anxious and avoidant. Because of this fear, people with insecure attachment may engage in behaviors intended to reassure them of the other person’s trustworthiness. An individual with avoidant attachment tends to resist close relationships, fearing that others are not reliable (Bowlby 1982). Adults in romantic relationships tend to behave similarly to children and mothers when it comes to attachment pairing (Fraley & Shaver, 1998). When people have insecure attachment, they may be highly activated by relationship ruptures, leaving them anxious and vulnerable to poor sleep quality. The resulting poor sleep quality may be moderated by high levels of outside social support, though with high attachment avoidance, the benefits of social support are less influential. Participants (N = 94) completed the Experiences in Close Relationships-Revised (ECR-RS) scale to measure attachment, the Pittsburgh Sleep Quality Index (PSQI), and the Social Support Questionnaire-Short Form (SSQ6). Findings reveal that though the correlation between insecure attachment and sleep was small, the addition of social support revealed some interesting patterns that give insight to the relationship between attachment, sleep, and the effects of social support.

Assessing Risk Authoritarian Parenting and Adult Coping

March 21, 2024 12:00 AM
Authors: Hunter Mitchell, Grace Carsey, Maria Balaceanu, Peg Bird, Bridger Lisonbee, Dannelle Larsen-Rife. Mentors: John Jones. Insitution: Utah Tech University. Early experiences in the home have long-term effects on health and well-being. This study will examine the connections between parenting styles and coping mechanisms, shedding light on their implications for child development and adult mental health and well-being. Parenting styles looked at in this study, specifically authoritarian has varied views on expectations, discipline, and rewards (Doepke & Zilibotti, 2017). Parenting styles have been shown to impact how children express themselves, and more specifically their expression of anger (Radomir-Beliţoiu, 2019). The expression of anger may indicate a deficiency in healthy coping skills. When individuals are found without healthy ways of coping, they become increasingly vulnerable to mental health disorders and poor relationship satisfaction. Based on our current understanding we believe that an authoritarian parenting style will be positively correlated with unhealthy coping mechanisms such as avoidance, substance use, and self-criticism. Adult participants (N = 100) varying in ethnicity and age will be recruited to complete the Brief Cope Questionnaire (Carver, 1997) and an adaptive version of the Parenting Styles and Dimensions Questionnaire (PSDQ; Robinson, Mandleco, Olsen, & Hart, 2001) to assess their parent's style of parenting and their ability to cope with challenges. We will run an ANOVA on the collected data using SPSS. We expect to see a correlation between parenting styles and children’s coping skills. It is anticipated that there will be a strong positive correlation in unhealthy coping skills and parental strategies. This study may suggest the importance of educating children and young adults in healthier coping skills and adults in healthy parenting strategies. This education may aid in reducing the frequency and intensity of mental health crisis in adults.

Seizures & Stigma

March 21, 2024 12:00 AM
Authors: Kelsey Grimshaw, Julie Pynn, Kirsten Graham. Mentors: Kirsten Graham. Insitution: Southern Utah University. Epilepsy is the most common chronic neurological illness, yet very little is known about it. Studies have found that stigma has created challenges for people with epilepsy in economic and social capacities (Walker, 2018). It is suggested that stigma surrounding epilepsy is due to a lack of awareness (Al-Dossari, 2018). A Qualtrics survey will be administered to a sample of Southern Utah University students to solicit their awareness of epilepsy and their perceptions of stigma regarding people with epilepsy. Additionally, interviews will be conducted with a second sample of people who identify as having epilepsy to discover their perceptions regarding awareness and stigma. The results of the two samples will be compared. It is hypothesized that the stigmas identified in university students will be consistent with experiences described in interviews of people with epilepsy. The findings from this study could aid in the normalization and destigmatization of epilepsy and other chronic illnesses in society.

From Struggles to Strength: Strategies, Identity, and Acceptance with the LGBT Community

March 21, 2024 12:00 AM
Authors: Kirsten Graham, Julie Pynn. Mentors: Kirsten Graham. Insitution: Southern Utah University. This study looks at how the LGBT+ population deals with concerns of identity, societal acceptance, and discrimination. The research identifies three primary coping mechanisms that affect resiliency: problem-focused coping, emotional coping, and avoidant coping. The purpose of the study is to determine how coping strategies and resilience relate to obstacles faced by Southern Utah University students. It makes use of qualitative data analysis, the Brief-Scale COPE, and the Brief-Resilience scales. I hypothesize with the quantitative data LGBT individuals who employ strong problem-focused skills are expected to demonstrate higher levels of resilience scoping, LGBT individuals who employ high levels of emotion focused-coping skills are expected to demonstrate low levels of resiliency, and those that demonstrate high levels of avoidant focused-coping are expected to demonstrate low levels of resiliency. Qualitative data analysis will reveal common thematic patterns in the use of problem-focused, emotion-focused, and avoidant coping skills among LGBT+ individuals, providing insights into their coping strategies related to discrimination, social acceptance, and identity. Understanding how the LGBT+ community at Southern Utah University manages to cope with challenges is crucial because it can result in better support and wellbeing. Results are forthcoming

Examining Implicit Bias on the Political Spectrum

March 21, 2024 12:00 AM
Authors: Jared Hanks, Kevan LaFrance, Julie Pynn. Mentors: Kevan LaFrance. Insitution: Southern Utah University. Implicit Bias is a form of bias that occurs subconsciously but influences conscious actions. It often occurs as racial bias and in apolitical environments (Gassner, 2014). Research shows those who are more conservative leaning are prone to racial bias (Brown, 2019). This research will broaden our understanding of implicit biases with political preferences taken into account. Using an Implicit Association Test, participants will sort "good" and "bad" words as they sort African-American or European-American faces. Research shows there is a correlation between thought compatibility and speed as connections we subconsciously hold are made faster (West, 2021). We predict those with conservative views will have a higher rate of association between black and bad words than those with progressive views, and those who lean progressive will feel they have more implicit bias when asked. this research will enhance our understanding of political bias and more importantly those who take the test will be given a chance to assess their own biases and be provided some tools to live with bias or seek to combat it. Results are forthcoming.

Development of the Positive Awe Origin Scale

March 21, 2024 12:00 AM
Authors: Willow Norton, Kaleb Cox, Jaycen Sunderman, Jessalyn Warhurt. Mentors: Kirsten L. Graham. Insitution: Southern Utah University. Positive awe is a feeling of wonder, insignificance, reverence, etc., that is stimulated by man-made or natural events, objects, or circumstances. Monroy & Keltner list the five primary domains of awe as nature, spiritual engagement, music, dance, and psychedelics, but a scale determining the exact origin points of awe has not yet been developed. Upon researching awe more and determining that it is a universally felt emotion, we started looking at where awe may stem from, or what causes it. We have found that there are different types of awe, or that different populations may be able to feel it differently, but we could not find a measure of where it originates. In our study, we attempted to determine the sources from which people experience positive awe by developing the Positive Awe Origin Scale (PA-OS). While developing the PA-OS, we delivered our scale to five peers who tested the face value of our scale about readability and subject matter, and we then edited our scale based on the feedback we received. In the present study, participants will be recruited through social media and MTurk to complete an online survey, via Qualtrics. This survey will include likert scale items rated 1 to 5, with 1 being “strongly disagree” and 5 being “strongly agree.” Psychometric evaluation of results will include a confirmatory factor analysis and an internal consistency measure using Cronbach’s alpha. Discriminant validity will be measured as we correlate our scores with other, unrelated, scales included in the Qualtrics survey, which measure different constructs. Convergent validity will be measured as participants complete an awe subscale of the Dispositional Positive Emotion Scale (DPES). We anticipate that the PA-OS will help further identify the various sources of awe and lead to improvements in the research.

Gambel Oak Acorns as a Food Resource in the Great Basin, Colorado Plateau, and Southwest

March 21, 2024 12:00 AM
Authors: Sophia Dodge. Mentors: Alex Greenwald. Insitution: University of Utah. This project seeks to address the understudied presence of Gambel Oak acorns in the archaeological record of the Great Basin, Colorado Plateau, and Southwest regions. While ethnographic data and historical records suggest that Native peoples in this area consumed some Gambel Oak acorns, their recognition in archaeological contexts has been limited. This study aims to assess the viability of methodologies for identifying macrobotanical acorn remains, shedding light on their utilization across different time scales, especially as fallback crops during resource shortages, such as climate shifts. Through experimental methods like burning, parching, and midden simulation we will determine how these methods impact the identifiability of acorns. The research holds significance for our understanding of past human responses to climate change and the ongoing struggle for Indigenous food sovereignty, providing valuable insights into sustainable food sources for the future.

From Self-Critique to Self-Care: Examining the Links Between Perfectionism and Self-Compassion

March 21, 2024 12:00 AM
Authors: Peg Bird, Maria Balaceanu, Grace Carsey, Tiffanee Suhaka, Hunter Mitchell, Ives Hong, Tara Caplin, Ed Wu, John T Jones, Dannelle Larsen-Rife. Mentors: John T Jones. Insitution: Utah Tech University. This study examines the relationship between perfectionism and self-compassion. Perfectionism may be beneficial, but often promotes unrealistically high self-imposed standards, a preoccupation with making mistakes, and a compulsivity toward order, leading to self-criticism and self-loathing. Perfectionism results in persistent feelings of failure, indecision, procrastination, and shame, which negatively impact relationships, work-life satisfaction, and overall well-being (Enns et al., 2001; Frost et al., 1993). Self-compassion is directing warmth and care toward oneself during times of suffering and comprises three core components: self-kindness (offering oneself warmth during adversity), common humanity (acknowledging shared suffering), and mindfulness (approaching the experience of pain with presence and curiosity) (Neff, 2003). Self-compassion is associated with mental health and well-being, including a stable sense of self-worth, increased resilience, life satisfaction, and perspective-taking. Furthermore, self-compassion negatively correlates with anxiety and depression, reduced fear of failure, perfectionism, and self-criticism (Barnard et al., 2011; Neff, 2003; Neff et al., 2006). This correlational study will recruit approximately 100 adult participants to evaluate associations between perfectionism and self-compassion. Participants will complete the Frost Multidimensional Perfectionism Scale and the Self-Compassion Scale (Frost et al., 1990; Neff, 2003). We anticipate a negative correlation between self-compassion and perfectionism, with higher levels of self-compassion corresponding with lower levels of perfectionism. If this prediction is supported by the data, the study’s outcomes will extend existing research on the potentially deleterious effects of perfectionism and pave the way for the development of interventions aimed at improving mental health outcomes among individuals adversely impacted by this trait.

Participation of Spanish-English Bilingualism in the US Political System: How Does Spanish Affect Voter Perception?

March 21, 2024 12:00 AM
Authors: Alexa Smith. Mentors: Iliana Portaro. Insitution: Southern Utah University. Every day, more and more political ads are popping up in Spanglish or even full-out Spanish on screens across the United States. Whether or not these ads are effective is another story. The research conducted here was based on the hypothesis that in America, after its most recent, tumultuous presidential election cycle, given also that Spanish speakers are on the rise, a candidate’s bilingualism could mean the difference between winning a seat or walking home empty-handed. According to an anonymous online research survey conducted in Salem of Marion County, Oregon, this is only the case when a constituent places importance on a candidate’s language ability. Otherwise, the majority of respondents remained largely indifferent. Additionally, this study determines that more can be done to encourage Latinx individuals to participate in the political system, and it all starts with community outreach. The results of this survey are based on a small, mostly Caucasian sample size, but there is still much to be examined.

Do images of gender conformity affect individual comfort and conformity with gender expression

March 21, 2024 12:00 AM
Authors: Alexis Downey, Kylee Navin, Brice Page, Alyssa Franklin, Hannah Cluff, Julie Johnson Pynn. Mentors: Julie Johnson Pynn. Insitution: Southern Utah University. “Gender expression refers to the way a person expresses their gender identity through appearance, behavior, and interests” (Helgenson, 2020). Previous research has shown that clothing has been used as a form of self-expression and that this expression of self-perception is more important for cisgender women (Strubel and Goswami, 2022). Additionally, previous research has found that conservative beliefs predict generalized prejudice toward gender-nonconforming individuals (Prusaczyk and Hodson, 2020). Felt pressure from peers and the self has been found to relate with greater gender typicality (Jackson et al. 2021), which leads us to believe that images of others may influence comfort and conformity with one’s own gender expression. The purpose of our study is to better understand the effects of appearance and political affiliation on comfort and conformity with gender expression. Participants were exposed to one of two visual manipulations: images of gender-conforming individuals, and images of gender-nonconforming individuals. Participants were asked to complete the Comfort and Conformity with Gender Expression Survey before and after being exposed to the images. We predicted that viewing images of gender non-conforming individuals would decrease participants' comfort and conformity with their gender expression, while viewing images of gender-conforming individuals would increase participants' comfort and conformity with their gender expression. Results will be forthcoming. Gender identity and expression are evolving rapidly, and it is important to examine masculinity and femininity in relation to gender non-conforming individuals rather than just gender-conforming individuals.

Meditation and Survival: Connections Between Humanity and Nature

March 21, 2024 12:00 AM
Authors: Reagan Wexels, Lauren Davis, Mason Peterson, Oliver Swanson, Rebekah Story, Julie Johnson Pynn, . . Mentors: Julie Johnson Pynn. Insitution: Southern Utah University. Environmental identity may affect an individual's pro-environmental behaviors, along with their association with the world around them (Clayton et al., 2021.) This concept demonstrates how people act according to their personality and values in relation to the natural world (Wesolek, 2020.)The degree of connection that an individual feels can be measured by the Connectedness to Nature Scale (Mayer et al., 2004.) The purpose of this study is to better understand the effect of Peter Kahn’s technological nature (2011) on people's connection to nature. We hypothesize that mindfulness meditation, which utilizes technological nature, will increase the connection to nature experienced by the participants in comparison to wilderness survival instruction utilizing technological nature. Research has established a link between mindfulness and an individual's connection to nature (Adventure-Heart et al., 2017.) Results will be forthcoming. The proposed study is important, because many people feel less connected to nature than ever. Understanding how to reconnect with the environment will allow greater access to the benefits of doing so.

"Am I a good student?": Examining Motivation Style Influences on Coping Strategies to Perceived Academic Failure and Self-Efficacy

March 21, 2024 12:00 AM
Authors: Broden Lund, John Jones. Mentors: John Jones. Insitution: Utah Tech University. Pursuing higher education credentials involves a significant investment of money, time, and energy. For many, this investment fails to pay off when students abandon their studies prior to graduation. Identifying factors that influence persistence to graduation has thus been the subject of a good deal of past research. The aim of this ongoing study is to explore the interaction between motivation type, responses to failure, and self-efficacy, on persistence among students at different stages of their academic careers. Participants will be 100 college students currently enrolled at a mid-sized university in the United States. Participants will complete measures of academic motivation, coping strategies in response to failure, and self-efficacy. We predict that the further a student progresses the more intrinsically motivated they will tend to be, and that this shift in motivation will be accompanied by increasing reliance on problem-focused coping and increased self-efficacy. Our results have the potential to provide a more nuanced understanding of the role intrinsic motivation plays in student success. Implications for students, parents, teachers, and administrators will also be considered.