Fine Arts
Do Examples of Unethical Conduct Improve or Undermine Ethics Training in Psychology
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
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.
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
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.
Cryopreservation: The Chilly Future of Biobanking
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
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
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
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
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
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
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
Authors: Isabella Scalise. Mentors: Conan Kinsey. Insitution: University of Utah.
Elucidating the Role of TOX on Melanoma Cell Migration and Invasion
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
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
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
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
Isolation on Plant Growth promoting bacteria from the hybrid buffaloberry Shepherdia x utahensis ‘Torrey'
Authors: Ty Wilson. Mentors: Amita Kaundal. Insitution: Utah State University. Climate-induced environmental stresses and the increased use of fertilizers to meet the increasing demand for food significantly threaten food production and soil health. In natural environments, microbes are vital to the growth and development of plants. Their presence in the soil allows for enormous flexibility and nutritional availability for plants, particularly those living in harsh conditions. A plant’s microbiome, especially the underground, plays a significant role in its growth and development and mitigates environmental stresses. Idaho and Utah are particularly challenging environments due to extreme temperatures and arid soil. However, despite these difficult environmental factors, the native plants of Utah and Idaho can thrive. Here, we are exploring the rhizosphere microbiome of Shepherdia x utahensis ‘Torrey,’ a hybrid of two highly drought-tolerant buffaloberry species, S. argentea and S. rotundifolia native to the Intermountain West region of the US to isolate plant growth promoting bacteria. In this study, we isolated drought-resistant plant growth-promoting microbes from the rhizosphere of hybrid buffaloberry. Root samples of hybrid buffaloberry were collected from three locations in Utah: the USU campus, Greenville Farm USU, and the USU botanical garden, Kaysville. The rhizosphere was removed from these root samples and pooled together. The bacteria were isolated on five different bacterial growth media twice. The isolated microbes were then purified using the streak plate method. Forty-six unique isolates were selected based on morphological characteristics and tested for four plant growth-promoting traits. Fourteen bacteria could show the ability to fix nitrogen fix, 18 produced a siderophore, 17 could solubilize phosphate, and 11 produced catalases. IAA production, ACC deaminase, and protease activity assays are in progress. All isolates will be identified by 16S rRNA Sanger sequencing.
Eolian Sediment as a Potential Soil Parent Material in Cache Valley
Authors: Kylie Hansen. Mentors: Janis Boettinger. Insitution: Utah State University. Cache Valley, Utah, has unique soils due to environmental events such as Pleistocene pluvial Lake Bonneville. This lake extended about 20,000 square miles in Northern Utah, and its depletion left numerous shorelines, the most relevant being the Bonneville and Provo shorelines. These various water levels influence the geological formations in Cache Valley and the different characteristics of soil formation. An important soil-forming factor used to characterize varying soils is the parent material. Parent material is the original sediments the soil formed on and can be various things such as sediments deposited by gravity, streams, lake sediments, or wind. These different materials depend on the location and alter the soil properties. A dominant soil parent material in the Lake Bonneville area is sediment deposited by this lake. This type of parent material is identifiable by coarser-sized sediments, such as cobbles, gravel, and sand. This pattern is evident on terraces in Cache Valley’s lower soil layers, but the near-surface layers have fewer rock fragments and more fine sand, silt, and clay. This distinct difference in particle size leads to the question of what is the parent material source in the surface horizons of soil formed in Lake Bonneville deposits in Cache Valley. There is not much literature on this question and little documentation compares the soil profiles for different Lake Bonneville terrace levels (Bonneville shoreline compared to Provo shoreline). We hypothesize that the different particle sizes of parent material in the surface of soils formed dominantly in Lake Bonneville deposits is eolian sediment transported and deposited by wind. To determine this, we will sample soils across Cache Valley and analyze the fine and very fine sand sediments in plane-polarized and cross-polarized light. This process will identify various minerals within each soil horizon, showing possible differences in the upper and lower horizons. The minerals present in each soil will indicate the parent materials, allowing us to understand what is causing the different textured horizons in these soils and where the sediment originated from.
Using Technician Statistics For Productive Animal Care
Authors: Grace Moore. Mentors: Aaron Olsen. Insitution: Utah State University. AbstractAnimal care technicians for research labs have many responsibilities in order to maintain the integrity of a research project. However, it is difficult to determine what tasks will require most of a technician’s time and effort. Thus, it is proposed that tracking what each individual does during a given shift can allow supervisors and technicians to create an efficient schedule of how they will work and provide a standard for individuals to meet every day. This project consists of tracking in detail what an animal care technician does in a given “shift”, including observation hours, handling and restraining, working in different biosafety levels, cleaning and prepping caging, and changing the caging. This data collection, over several months of work, finds relationships between tasks, the frequencies of being completed, and the time they take. The key tasks of an animal care technician are observing, providing nourishment, maintaining clean environments for both the researchers and the subjects, and maintaining supplies and accurate records. Additionally, many hours are dedicated solely to observing the animals to ensure their health and safety. Moreover, cleaning and prepping of caging or supplies are completed more than half of the time during a given shift. Finally, working with a given species may require more time to complete a task (such as cage changing or cage preparation) compared to another species despite the task being the same. If each technician were to track their tasks and create a profile of personal statistics, they would be able to easily determine how long a task should take. Moreover, a supervisor would be able to determine if a technician is working more efficiently or even falling behind during daily tasks. Overall, these findings could be used to incorporate better time management or planning for institutions to know what more time or resources may need to be devoted to in order to maintain a safe environment, provide exceptional care for the subjects, and follow every protocol.
In the Depths of the Understory: Costa Rican Associations Between Ants and Coccoidea Unraveled using NGS DNA Barcoding
Authors: Sylvia Lee, Ainsley Parkins, Rodolfo S Probst. Mentors: Rodolfo S Probst. Insitution: University of Utah. Mutualisms between ants and plants are ubiquitous interactions and have been evolving for over 100 million years. Studies have been done on systems wherein the plants provide nutritional resources for ants, but the dynamics of mutualistic interactions in environments where host plants do not provide obvious nutritional rewards continue to remain elusive, raising questions about their co-evolutionary histories. In these circumstances, associated fauna, such as mealybugs and soft scales (Hemiptera: Coccoidea: Pseudococcidae and Coccidae), serve as intermediaries of the association, providing honeydew (enhanced plant sap) as a main food source to their host ants. However, the identity of the insects involved in these associations and their co-evolutionary history with ants is poorly understood. By focusing on samples collected in Costa Rica from 33 colonies of the Neotropical plant-ant genus Myrmelachista (Formicinae: Myrmelachistini), we sequenced DNA barcodes (cytochrome oxidase subunit 1 [CO1]) using Oxford Nanopore Technology and employed Next-Generation Sequencing (NGS) for both the Myrmelachista ants and their associated fauna. We aimed to identify their taxonomy, phylogenetic relationships and identify unique interactions between ants and their associated fauna. We recovered DNA barcodes for eleven Myrmelachista species and seven putative species of mealybugs (n=5) and soft scales (n=2). For the seven putative species of Coccoidea, our DNA barcodes, when compared to available sequences from the NCBI database, recovered an average of 85% match similarity. The closest matches associated our putative species to Old World Coccoidea taxa, reinforcing the need for taxonomic studies of this superfamily for the Neotropical region. Each putative species of soft scales was found uniquely associated with two Myrmelachista species (M. flavoguarea and M. cooperi). For all eleven Myrmelachista species, five were associated with two putative mealybug species. One putative mealybug species was associated with five different Myrmelachista species; one was uniquely associated with M. nigrocotea. Same associations were found between the associated fauna of M. flavocotea and M. lauropacifica; M. haberi and M. RSP027; M. plebecula, M. meganaranja, and M. osa, respectively. These results suggest that there may be unique associations between some Myrmelachista species and their Coccoidea associates, unconstrained by the ant phylogeny. Our findings also provide insights on Coccoidea taxonomy, emphasizing NGS DNA barcoding as a tool to illuminate how ant-plant associations might have evolved.
Computational analysis of cyclic aminoborane complexes that exhibit potential to act as hydrogen storage molecules
Authors: Amy Richards, Caleb Shelton, Jordan Colmenero, Mason Warenski. Mentors: Diana Reese. Insitution: Utah Tech University. Hydrogen gas has potential to be an excellent form of clean energy; unfortunately, hydrogen gas is difficult to store safely in its elemental form. Consequently, this research project investigated cyclic aminoborane complexes in which hydrogen (H2) can be safely stored. Utilizing computational methods, molecular dynamics simulations of four cyclic aminoborane compounds were performed using Q-CHEM 6.0, with a t-HCTHh density functional and cc-pVDZ basis set. Results were visualized using Molden 6.7 and VMD 1.9.3 then plotted using Gnuplot 5.2.8. Molecules selected for the investigation involve two constitutional isomers for both the 3- and 4- membered ring cyclic aminoborane complexes. The four molecules studied were (CH2)2NHBH3, (CH2)2BHNH3, (CH2)3NHBH3, and (CH2)3BHNH3, (hereafter 3N-B, 3B-N, 4N-B, 4B-N). Motions inherent in these molecules exhibited surprising differences. Specifically, in the 3-membered rings, the terminal borane (3N-B) exhibited more motion than the terminal amine (3B-N); however in the 4-membered rings (4N-B and 4B-N) the opposite occurred. Differences in these and other motions were quantified and qualified with respect to each molecule to gather data relevant to hydrogen storage potential.
Unveiling Cryptic Avifauna Diversity Using Nanopore DNA Sequencing: A Case Study in the Passerine Genus Emberiza
Authors: Ainsley E Parkins, Sylvia Lee, Elizabeth J Heath, Thomas Petitjean, Kyle Cink, Kyle Kittelberger, Cagan Sekercioglou, Rodolfo S Probst. Mentors: Rodolfo S Probst. Insitution: University of Utah. Biodiversity loss poses a significant threat, requiring accurate species assessment and conservation strategies. Non-invasive and cost-effective techniques should be prioritized, especially when dealing with threatened vertebrate fauna. By focusing on cryptic Eastern European species within the genus Emberiza (Passeriformes: Emberizidae), we designed an affordable molecular pipeline (including DNA primers and bioinformatics) integrating DNA barcoding with Nanopore sequencing to address species boundaries and provide conservation information for avifauna diversity. We conducted non-invasive DNA extractions from individual feathers of 192 specimens collected in the Aras River Riparian Corridor (ARRC), an important ecological hotspot in Turkey. By targeting the cytochrome oxidase subunit I (CO1) region, our goal was to differentiate Emberiza taxa and identify potential cryptic lineages while using cutting-edge next-generation sequencing (NGS) of multiplexed specimens with portable Oxford Nanopore Technologies. Our focal study examined boundaries in Emberiza subspecies (E. shoeniclus shoeniclus and E. shoeniclus caspia) with subtle morphological differences, utilizing DNA barcoding and Nanopore sequencing. We obtained 182 Emberiza DNA barcodes. Clustering analysis recovered a paraphyletic assemblage (n=32) and a clade, the latter recovering majority of the barcodes (n=150), separated by at least 8% genetic difference. In both cases, we observed a mixture of barcodes from the nominal subspecies and Caspian subspecies, suggesting that cryptic morphological characteristics are not reflected in genetic separation. Our results also suggest putative cryptic Emberiza species, highlighting the importance of the ARRC for conserving avian diversity. We demonstrate that our pipeline, integrating real-time Nanopore sequencing with non-invasive DNA barcoding, can be used for conservation initiatives (particularly aiding cryptic species identification). This study expands our knowledge of avian diversity and highlights the potential of NGS DNA barcodes as a powerful tool for aiding conservation efforts amidst biodiversity loss.
University Course Timetabling: From Sticky Notes to Automation
Authors: Alyssa Muller, Russ Ross. Mentors: Russ Ross. Insitution: Utah Tech University. University course timetabling assigns rooms and times to courses, considering instructor availability, curriculum conflicts, and quality of life considerations. Computing an optimal solution is computationally intractable. Researchers have refined approximation algorithms that yield far better results than the conventional pencil-and-paper approach used at many universities, including our own. Transitioning to an automated system can be disruptive and poses both real and perceived risks to an institution. The implicit knowledge that humans bring to the problem is hard to fully capture within formal rules that a computer can understand. Our research addresses the impedance mismatch between abstract solutions and the messy real world.In this project we build on prior research to fit the specific needs of our university. We will pilot our system with a set of departments in parallel with the traditional by hand process. We will analyze outcome quality through subjective assessment and quantitative comparison between human and machine generated timetables.
Synthesis and Characterization of Novel Pterostilbene Derivatives for Potential use as Therapeutics
Authors: Ashley Staten. Mentors: Jennifer Meyer. Insitution: Utah Tech University. Pterostilbene, a natural product found in blueberries and nuts, has been shown to be multifunctional. In low doses, it has been shown to be a potent antioxidant, while in higher doses, it has been shown to reduce cell proliferation, induce autophagy, and increase apoptosis. Recent literature has indicated that derivatives of pterostilbene can improve the functionality of pterostilbene in both cancer cell viability (reduction) and antioxidant capacity (increase). Previously, our group has synthesized and characterized the antioxidant capacity of a select group of pterostilbene derivatives, which have been functionalized to contain an additional alcohol and amine group. Most recently, we have synthesized a derivative containing benzylamine as the amine. This amine was chosen as benzylamine and drugs functionalized with benzylamine groups have been shown to have antiapoptotic properties. Currently, we aim to further characterize this novel pterostilbene derivative as we believe it has the potential to be utilized as a therapeutic in various disease states such as cancer and type 2 diabetes.
Rock Column Displacement in Zion National Park: A statistical Analysis
Authors: Michael Orr. Mentors: Md Sazib Hasan, Alex Tye. Insitution: Utah Tech University. Every year Landslides claim lives and cause billions in property damage. Zion National Park in Southwestern Utah has been monitoring a precarious rock column contained within the parks borders since 2019. The results of this rockfall will be damage to the land and historical structures located in the fall area. The data are collected by two instruments called vibrating-wire crackmeters that are connected from the cliff face to the pillar—these are electronic and provide a continuous feed of distance measurements. The project will be focused on analyzing a 4-year record of displacement of a precarious rock pillar from the adjacent cliff face from which it will eventually separate and topple onto a slope below. We will also be analyzing the environmental factors causing the movement of the rock column. Results of this modeling will help us better understand the driving forces behind rockfalls, possibly helping to mitigate future damage.
Hollow hair and how its structure helps big game animals thermoregulate
Authors: Taylor Millett, Wendy Schatzberg, Samuel Tobler. Mentors: Wendy Schatzberg. Insitution: Utah Tech University. This study delves into the intriguing world of hollow hair strands in animals, focusing on their role in thermoregulation, and the ability to maintain a stable body temperature in the face of fluctuating external conditions. While the Pronghorn antelope is widely known for having hollow hair strands among hunters and conservationists, little is known about their internal structure. Employing scanning electron microscopy (SEM), we explored the inner composition of these hollow hair strands and their contribution to thermoregulation. Our investigation centered on several notable North American big game animals, including Mule deer, Rocky Mountain elk, and Pronghorn antelope, all of which exhibit a unique adaptation: the transition between summer and winter coats. Through SEM analysis, we measured and compared the winter and summer coats of these animals to gain insights into how they effectively regulate their body temperatures during the extremes of hot summers and cold winters. These seasonal changes manifest in alterations in fur and hair thickness and length. Under the microscope, we unveiled the distinct topography of the inner structure of individual hair strands. Notably, our findings revealed that the inner hair structure contains larger hollow pockets in the winter coats of these animals. Our research thus sheds light on the role of these hollow structures in heat transfer and their pivotal contribution to the thermoregulation abilities of these remarkable creatures, expanding our understanding of their unique adaptations.
Murine Model of Hepatitis Delta Virus-Associated Salivary Gland Impairment
Authors: Alexander Romano, Matthew Hesterman, Rachel Hill, Melodie Weller. Mentors: Melodie Weller. Insitution: University of Utah. Sjogren’s Disease (SjD) is an autoimmune disease diagnosed by symptoms of reduced tear and saliva excretion, accumulation of lymphocyte foci in the salivary glands, and the occurrence of antibodies against Ro (SSA), La (SSB), and nuclear proteins. The cause of SjD is unknown, though previous studies have detected the sequence and antigens of Hepatitis Delta Virus (HDV) in the minor salivary gland acinar, ductal, and adipose cells of patients with SjD; without the typical presence of a Hepatitis B coinfection. In this study, murine models were transduced with Adeno-associated virus containing expression cassettes for Luciferase (control), small, large, or a combination of both small and large HDV antigens to evaluate the impact of HDV antigen expression on salivary gland function and SjD autoimmune disease development. After a ten- or four-month period, the models were analyzed. Findings included a significant increase of inflammation for samples expressing both small and large HDV antigens, a significant increase of anti-SSA(La) antibodies in samples expressing the short HDV antigen, and a correlation between increased overall inflammation and decreased overall saliva flow. Performing qPCR methods verified the amount of HDV in the submandibular glands and Illumina sequencing portrayed an increase in glycolysis and beta oxidation metabolism in models with detectible HDV sequence. The models showed significantly increased IgM expression in the HDV exposed murine models, without significant change of other antibodies. Future plans include an ELISA diagnostic assay to verify the antibody levels and further sequencing analysis. With this information we can build a better picture of the direct mechanisms of HDV-mediated changes in salivary gland dysfunction and determine the extent that HDV can inducing systemic SjD symptoms.
Optimization of Subcritical Water Hydrolysis of Microalgae Biomass for Clean Meat Production
Authors: Bradley Lawson, Lukas Keller, Marshall Burrows, Sam Perkins, Emery Wheeler. Mentors: Ronald Sims. Insitution: Utah State University. Subcritical water hydrolysis (SWH) is a developing method of processing organic materials/waste without the use of acids and alkali materials. SWH lyses peptides differently than acid hydrolysis and can produce Maillard products, which have various effects in cell culture. In this study, a batch-mode pressure vessel with a semi-continuous sampling apparatus will be used to optimize temperature and retention time for the hydrolysis of Chlorella vulgaris biomass for the development of serum-free (or low-serum) cell culture media. Hydrolysis will be done at temperatures from 140°C to 300°C and retention times from 5 minutes to 30 minutes. The SWH products will be assessed for their general protein content, lipid content, bioactivity, and carbohydrate content. These efforts will be of use to Upside Foods in its efforts to create sustainable and ethical cultured meat products.
Information Anatomy Over Partition Space
Authors: Nathan Jackson, Ryan James, James Crutchfield. Mentors: Mikhael Semaan. Insitution: University of Utah. Symbolic dynamics allows for modeling---and designing for---the effects of imperfectly measuring a time series of data, by partitioning into a finite number of possibilities. The resulting time series of discrete symbols is then made especially amenable to information-theoretic methods for understanding its temporal structure and correlation. In particular, as long as the partitioning scheme is generating, the resulting estimations for entropy rate---the rate at which the process creates information---converge to a measure of chaos in the underlying system, a dynamical invariant.However, the entropy rate is not sensitive to what kind of generating partition: colloquially, an instrument must be at least accurate enough, but can be more fine-grained as desired. In contrast, its breakdown into a piece which affects future measurements (“bound”) and a piece which does not (“ephemeral”) depends quite dramatically on the choice of generating partition. We ask, then: is there a canonical partitioning scheme for which the full suite of information measures relate to dynamical invariants?To tackle this, we simulate the well-known tent and logistic maps, sweeping over all two-boundary partitions, calculating the full information anatomies for each. We find that ephemeral and bound information are extremized by the single-boundary coarsest generating partition, suggesting a canonical role for the simplest “good enough” instrument. The remaining multivariate measures, meanwhile, reveal hitherto-unseen structure in the process of imperfect measurement.
mitochondrial genes of hybrid whiptail parthenogens
Authors: Dante Celani, Erin Bunch, Randy Klabacka. Mentors: Randy Klabacka. Insitution: Utah Tech University. Hybrid parthenogenic whiptail species have lower endurance capacity and mitochondrial respiration than their sexual parental species. These differences in aerobic performance may be due to reduced compatibility of variable gene products between the divergent parental genomes that are present in the hybrids. If this is the case, we expect to see genetic variation in mitochondrial-targetting genes. We performed whole-genome sequencing for four sexual whiptail species that are parental species to hybrid parthenogenetic species, and we mapped those samples to an annotated whiptail genome. We call gene variants and classify them as coding, non-coding, synonymous, and non-synonymous to understand which variants might contribute to phenotypic variation, and we discuss approaches to further elucidate the genetic mechanism behind the lower aerobic performance in hybrid parthenogens.
Temporal Decay of Memory Discrimination: Investigating Mnemonic Similarity Task with Extended Delays
Authors: Alexandra Osmond, Samantha Stabler, Sara Knowlton, Sam Chipman, Brock Kirwan. Mentors: Brock Kirwan. Insitution: Brigham Young University. Memory discrimination refers to the ability to distinguish between different memories or experiences based on their unique characteristics or details. The Mnemonic Similarity Task (MST) is a variant of a recognition memory task that assesses memory discrimination by asking participants to encode a series of objects in long-term memory and later discriminate between targets (repeated items), lures (similar but not exactly the same as previously seen items), and foils (novel items). The similarity of targets and lures is systematically varied resulting in five similarity levels (L1-L5). The goal of our research was to determine if individuals retain memory discrimination abilities after different periods of time exceeding 12 hours. Study recruitment was done on Brigham Young University campus for 18-25 year olds with no known neurological conditions (ADHD, major depression etc.). Thirty participants were tested in each group and they were asked to complete an immediate test. They were then asked to return to the lab for a second test after a 1-day, 3-day, or 1-week delay.Our results showed that the 1-week delay of the MST eradicated an individual's ability to discriminate between the lures of varying similarity. At a 1-day delay, individuals did lose some memory discrimination ability, but were still able to recognize the more distinct lures.
Using Automated Web Scraping to Document Variation in Sodium Content of Common School Meal Entrees
Authors: Aaron Brown, Kimball Jardine, Nathan Schill, Courtney Webb, Joanne Guthrie. Mentors: Joseph Price. Insitution: Brigham Young University. Background: Many school districts consider meeting the National School Lunch Program (NSLP) sodium standards challenging. USDA national survey data indicate that in School Year 2014-15, 28% of lunch menus did not meet the standard. Entrees contributed the largest share of sodium, making their sodium content especially important.Objective: Assess variation in sodium content of popular entrees across a large national sample of school districts.Study Design, Settings, Participants: School menu data including item sodium content were obtained from 1149 school districts using an automated web scraping program.Measurable Outcome/Analysis: Menus were web scraped monthly between August 2022 and January 2023. Variation in sodium content of two popular entrees−pizza and chicken nuggets−was analyzed, with average sodium content compared across different regions in the US and also based on the per-pupil spending of the district.Results: There is statistically significant variation in entree sodium content between regions, with the South having the highest average level of sodium. The average sodium level is also highest in the districts that have the lowest per-pupil spending.Conclusion: Sodium content of popular entrees exhibits significant variation across school districts. This highlights the fact that districts could reduce the amount of sodium in their lunch entrees while still offering the popular entrees they serve.
The Impacts of Distress and Perceived Social Support on Heart Rate Variability
Authors: Mikel Cressman, Jackie Richey, Dantzel Petersen Hancey, Bianka Geraldo, Kayden Barlow, Ainsley Lumsden, Olivia Hubble. Mentors: Patrick Steffen. Insitution: Brigham Young University. Heart rate variability or HRV is a measure of the amount of time between a person’s heartbeats and is related to their physiological response to stress. Social support is an important component of positive health outcomes and plays a part in mediating distress. More research is needed to better understand the connection between HRV, social support and distress. We hypothesize that those with low baseline HRV will have higher distress scores and lower social support than those with high baseline HRV. We also hypothesized that someone with high distress and high social support will have higher HRV than those with high distress and low social support. In this study, social support was measured using the Multidimensional Scale of Perceived Social Support (MSPSS), distress was measured using the Counseling Center Assessment of Psychological Symptoms (CCAPS), and baseline HRV was measured using a NEXUS biofeedback device using ECG leads on the collarbones and left rib. Our sample consisted of 236 college students (17-28 years old; 57.6% female; 85.9% white) drawn from an online recruiting software and student development classes. For the first hypothesis, we will use a MANOVA to compare both low and high HRV baseline with mean MSPSS and CCAPS scores. We will use an ANOVA to compare differences in HRV between those with high MSPSS and high CCAPS scores to those with low MSPSS and high CCAPS for the second hypothesis. We expect to find that those in the lower HRV group will have higher CCAPS scores and lower MSPSS scores when compared to the high HRV group. We also expect to find that participants in the high CCAPS and high MSPSS group will have a higher HRV when compared to the high CCAPS and low MSPSS group.
Counting Crowds: An Analysis of Population 'Top-Outs' in Counties Across the United States
Authors: Maisie Baird, Hugh Kerry, Samuel Otterstrom. Mentors: Samuel Otterstrom. Insitution: Brigham Young University. Throughout the history of the United States, populations have experienced continual fluctuations across its diverse landscape. Although much research has focused on the growth and decline of cities and counties, many of these studies have focused on the positive population growth in larger cities and counties, insomuch that scholars and the public might have an incomplete or skewed view of the historical population geography of the country. However, this paper presents a broader perspective, including times of both population growth and decrease across regions and multiple decades and showing how these trends do not follow strictly positive trajectories nor exhibit isolated randomness. This paper will focus on specific examples of counties across the United States, highlighting why there were population ‘top-outs’ in these areas. For example, Sheridan County, Nebraska experienced a population boom at the onset of World War I, as it became the United States’ primary source of potash. However, at the end of World War I, potash could again be cheaply imported from Europe so, Sheridan County lost its booming industry, resulting in population decline. This research delves into the concept of population ‘topping out’ in counties, emphasizing a comprehensive understanding achieved through a holistic framework that accounts for geographic, regional, economic, and temporal aspects.
Feelings about Modesty and the Prevalence of Eating Disorders in Latter-Day Saint Men and Women
Authors: Kate Binford, Marissa Roper, Brynn Eyre. Mentors: Sarah Coyne. Insitution: Brigham Young University. The purpose of this study is to examine the relationship between personal feelings about modesty and the prevalence of eating disorders (EDs) among Latter-day Saint (LDS) men and women. Participants were recruited through social media and announcements on LDS-specific social media pages. The study has a final sample of n=1,271, 431 of which (33%) had an ED. There is a significant positive correlation between feelings of shame about modesty and the prevalence of EDs (r=0.11, p<.001). This means that, in general, more feelings of shame about modesty are related to a higher prevalence of EDs. Implications of these findings indicate that it may be helpful to reduce any shame-based teachings around modesty in order to protect against EDs.
Influence of Childhood Levels of Self Control on Adolescent Sleep Outcomes
Authors: Jacalyn Richey, Hayley Pierce. Mentors: Hayley Pierce. Insitution: Brigham Young University. Good sleep habits and effective self-control are important components of successful functioning. Unfortunately, chronic sleep loss is a common concern in adolescence as both their autonomy and demands on their time increase. This loss of sleep impacts neural and physical development and is connected with increased mental illness, delinquency, and academic difficulties. Self-control may aid in the prioritization of sleep by curbing impulsive desires and improving decision making around adhering to bedtimes. This study drew on data from the Future of Families and Childhood Wellbeing Study (FFCWS) measuring self-control at age 9 and sleep outcomes at age 15 (N = 3,444; 48.7% female; 49% Non-Hispanic Black). Multivariable analyses indicated that self-control showed statistically significant relationships with social jetlag, falling asleep, and having a regular bedtime after controlling for several relational and economic factors. Improving childhood self-control habits and skills through modeling and instruction may lead to increased positive sleep outcomes, which may increase healthy development in adolescence and beyond.
How Depression Affects “Feeling the Spirit” in College Age Latter-Day Saints
Authors: Nadia Mando, Josh Shaeffer, Jared Nielsen. Mentors: Jared Nielsen. Insitution: Brigham Young University. Background: “Feeling the Spirit” is an important experience for many active Latter-Day Saints. Feeling the Spirit is often defined by the presence of positive, even if minor, feelings which are perceived to be interactions with deity. However, some Latter-Day Saints struggle to feel the Spirit which can be distressing to them. Recently, LDS leaders have focused on understanding how depressed individuals might experience “feeling the Spirit” differently.Objective: Our pilot study sought to understand the relationship between depression and the frequency and strength of spiritual experiences.Methods: We used the Depression Anxiety Stress Scale-21 (DASS21) to measure depression. We created two separate measures to inquire how frequently and strongly participants felt the Spirit in the last six months. We also created a task asking participants to read multiple scripture passages and report how strongly they felt the Spirit while reading each passage. Responses to each passage were averaged to create a state measure of feeling the Spirit. We hypothesized that higher scores of depression would predict lower scores on feeling the Spirit for all three measures.Results: We found that scores on depression (M=11.388, SD=7.844) significantly correlated to frequency (M=3.683, SD=0.760, r= -0.352, p<.001) and strength (M=4.004,SD=0.628, r=-0.453, p<.001) of the Spirit. However, depression scores were not significantly correlated with our state measure (M=2.384, SD=0.903, r=-0.192, p=0.078). In our regression models we found that depression is a significant predictor of both frequency (R2= 0.091, F(1,83)=8.347, p=.005, =-0.029, p=.005) and strength (R2=0.158, F(1,83)=15.523, p<.001, = -0.032) of feeling the Spirit but, not of feeling the Spirit during the scripture task (R2=0.003, F(1,83)=0.236, p=0.628, = -0.463).Conclusion: These findings suggest that depression may affect how LDS persons experience their relationship with God. Our findings take a step toward explaining why some individuals may experience difficulty in “feeling the Spirit”. Future studies are necessary to elucidate these preliminary findings.
Investigating the Effectiveness of Incentivized Efficient Watering Practices in 5 Western States with Focus on Utah
Authors: Ashley Swensen, Ruth Kerry. Mentors: Ruth Kerry. Insitution: Brigham Young University. The American West has been experiencing severe drought for over 20 years with changes in climate. Also, the population in certain states has greatly increased putting increasing pressure on the limited fresh water supply. While the agricultural sector is the biggest consumer of freshwater, much is also used to irrigate turfgrass lawns in urban residential areas. The EPA has estimated that about 50% of household irrigation water is wasted by temporal and spatial misapplications. Temporal misapplications can be reduced by using smart sprinkler controllers that take into account recent weather when scheduling irrigation timing. This research investigates people’s willingness to implement more efficient watering practices with and without incentives. It also investigates how an average water bill for a quarter acre lot varies between states and between cities within 5 states in the semi-arid west (AZ, CO, ID, NV, UT). Following comparison of average water bills between states and cities, the potential savings from taking advantage of water saving incentives offered by cities is investigated. The research found differences between the genders and aridity zones in terms of the types of incentive that are favored and likelihood of utilizing methods to improve irrigation efficiency. Water bills were the highest in AZ and lowest in ID and UT. The low water bills in ID are likely associated with the greater prevalence of agriculture in that state than the others studied. Most UT cities had incentives for Smart Sprinkler controllers or to xeriscape. However, in other states several cities did not have incentives for installing Smart Sprinkler controllers. We conclude by trying to assess whether incentives or disincentives are more effective at reducing water use by residential customers.
The Physiological Effects of Capitalization in Ambivalent Marriages
Authors: Abigail Williams, Kelsie Minga, Abby Baker, Ella Sieg, Olivia Harris. Mentors: Wendy Birmingham. Insitution: Brigham Young University. Background: Research has found positive health benefits in the communication of positive events (capitalization) with others who respond with curiosity and enthusiasm. An expectation is that one’s spouse would respond in such a way. And indeed, if one has a highly supportive spouse this is likely the case. However, not all individuals have a highly supportive spouse and may have a spouse whose behavior is more ambivalent. Such ambivalent, or unpredictable behavior may lead to worse physiological outcomes when sharing good news including increased risk for cardiovascular events. Blood pressure should dip 10-15% overnight (“dipping”). A less than 10% dip is associated with higher cardiovascular disease risk. We looked at capitalization and dipping in ambivalent and supportive couples. Interpersonal Theory asserts that positive or negative behaviors from one spouse can elicit similar responses from the other spouse. Thus we looked at capitalization and dipping for spousal ambivalent behavior, and one’s own ambivalent behavior. Ambivalent behavior, whether one own’s or one’s spouse’s can also impact the quality of the relationship. Methods: 90 couples were recruited from a local university, social media, and the community. Participants completed measures of marital quality. They were fitted with an ambulatory blood pressure monitor for 24 hours. The monitor took a reading every 30 minutes during the daytime and once an hour overnight. Participants completed a daily diary entry each time the monitor took a reading during the daytime which included questions regarding their present activities (e.g., posture, current emotions, food consumption). Participants returned the equipment the following morning and were compensated. Results: Ambivalent behavior was associated with worse relationship quality measured as responsiveness, both in terms of one’s own behavior, and one’s spouse’s behavior. We found no association for systolic blood pressure (SBP) dipping for individuals whose spouse’s behavior was viewed as ambivalent, however diastolic blood (DBP) dipping was in the opposite direction showing ambivalent spousal behavior was associated with healthier dipping. Of interest, when one reported their own behavior as ambivalent when their spouse was sharing good news, their SBP dipping was unhealthy. Conclusions: Spousal ambivalent behavior seems to be less important than one’s own behavior on SBP dipping. This may be because one is generally aware of their own behavior and understands that such behavior is problematic for the relationship. This awareness, however, may come with a cost for their health as well as their relationship.
The Effects of Anterograde Amnesia on Mnemonic Discrimination: A Single-Subject Case Study
Authors: Sara Knowlton, Sam Chipman, Samantha Stabler, Alex Osmond, Brock Kirwan. Mentors: Brock Kirwan. Insitution: Brigham Young University. The hippocampus is a brain structure involved in recognition memory and pattern separation, or the ability to disambiguate potentially interfering or overlapping memory representations. The Mnemonic Similarity Task (MST) has been used to assess memory specificity by asking participants to encode a series of objects and later perform a recognition memory test with repeated items (targets), similar but not exact repeats (lures), and novel items (foils). In a single-subject case study, we utilized the MST in evaluating recognition memory over various delays of a subject with anterograde amnesia. Subject MC is a healthy young adult female who underwent a unilateral amygdalohippocampectomy as a treatment for epilepsy. This procedure included the complete removal of her hippocampus in the right hemisphere, which we verified with magnetic resonance imaging. In addition to the MST, we compiled a battery of neuropsychological tests, including the Wide Range Assessment of Memory and Learning (WRAML-3), the Delis-Kaplan Executive Functioning System, and the Wechsler Abbreviated Scale of Intelligence (WASI-II) to more holistically assess MC’s memory deficits. Preliminary analyses showed significantly lower lure discrimination when compared with control subjects, indicating deficits in pattern separation. Further analysis of MC’s MST results are being conducted to evaluate her broader ability for recognition memory.
Relationship Between Income and Lifespan Using Historical Data
Authors: Joseph Price, Britton Davis, Alexander Jenks. Mentors: Joseph Price. Insitution: Brigham Young University. Modern data show a strong positive relationship between community-level average income and life expectancy in the United States. We compile a dataset including place of residence, lifespan, and a proxy for income for 27 million unique individuals from the 1900-1940 censuses. In contrast to the pattern in modern data, we actually find that individuals living in an enumeration district with the top quartile of our proxy for income experienced shorter lifespans than those living in the bottom quartile. We show that this negative relationship was largest in the 1900 census and slowly shrank over the next four decades showing how this negative relationship evolved to the positive relationship we see today.
Sodium Reduction Policy Response
Authors: Jacob Hutchings, Harrison Li. Mentors: Joe Price. Insitution: Brigham Young University. We examine the effectiveness of federal school nutrition policies and regulations; specifically, the recent transitional targets for sodium reduction announced in 2021. We performed web-scraping to gather over 5 million observations representing every U.S. state and over 2000 school districts and then constructed a weekly average of sodium served in school lunches by district. Using this data, we apply OLS regression with district fixed effects and find that the policy caused a significant, one-time reduction in weekly average sodium of approximately 220 mg. We further explore this result by looking at heterogeneous responses to the policy by political partisanship. We find that there is a significant, partisan response to the transitional targets. Lastly, we consider an adverse effect of sodium reduction by looking at potential sodium substitutes in school lunches. Contrary to expectations, our data shows a statistically significant correlation between decreased sodium levels and decreased sugar levels. To conclude, sodium reduction policies reduce sodium and other harmful nutrients but may be less effective across party lines.
The Relationship Between Social Media and Body Image
Authors: Fiona Fox, Catherine Schumann, Cameron Monson. Mentors: Sarah Coyne. Insitution: Brigham Young University. Most often, research has looked at the negative effects of social media on mental health. The purpose of this study is to understand the interactions between social media usage and body image, and if there are any ways that social media has a positive impact on body image. This study surveyed children and youth ages 7-17 to gain insight on their social media use and different aspects of mental health. Social media preoccupation and mindfulness were both significantly correlated with body esteem, and a slightly significant correlation was found between positive social media use and body esteem. These findings suggest that mindfulness around social media usage can help mitigate the negative impact on body esteem that many youth experience. Parents can use these findings to have conversations with their children and teenagers about being mindful with social media use and avoiding preoccupation with it.
Experience impact and the influence of novelty, social connection, and positive emotions on tourist experiences
Authors: Braden Bringhurst, Michael Ray, Megan Barbier, Ellie Smith. Mentors: Peter Ward. Insitution: Brigham Young University. In travel, the interplay of social connection and novelty profoundly shapes the impact of peoples' experiences. This study examines novelty, positive emotions, social connection, and the impact of the experience on participants through the lens of the Self-Expansion Theory. Novelty is defined as the process of experiencing or encountering something different to the objects regularly encountered in everyday life. Social connection is defined as the affective and cognitive perception of interrelatedness within social groups, encompassing emotional responses like feeling understood and valued. Positive emotion is defined as pleasant multicomponent response tendencies, including joy, interest, contentment, pride, and love. Experience impact is defined using the experience typology. This typology starts with prosaic experiences or ordinary parts of life. The next progression is memorable experiences which introduce felt emotions into the experience. The next stage is meaningful which introduces discovery as well as emotions into the experience. The final stage is transformational which introduces a desire, or actual personal change happening to the experiencer as well as emotions and discovery. To measure the various stages of the experience typology framework, we use the Experience Impact Scale to identify the personal impact of a tourist experience. These various constructs are explored through the perspective of the Self-Expansion Theory which states that people seek to expand their potential efficacy, perspectives, and sense of self through the development of relationships. This study utilizes this theory by looking into novelty’s effect on the impact of an experience through the lens of Self-Expansion Theory with respect to social connection and positive emotions as mediating factors. The data were analyzed using structural equation modeling in AMOS v 28. Models were gradually expanded on, starting with the initial relationship between subjective novelty and experience impact. Later, a mediating model was considered that incorporated subjective connection and positive emotions as mediating effects on experience impact. The model examining the relationship between subjective novelty and experience impact as mediated by subjective connection and positive emotions had an acceptable model fit. The significant factors that contributed to the model were subjective novelty which had a standardized regression weight of .264, subjective connection which had a standardized regression weight of .222, and positive emotions which had a standardized regression weight of .256. The model explained 16% of the variance within experience impact. This study demonstrates that novelty influences social connection which influences positive emotion which positively impacts the tourist experience. People designing experiences should create a novel experience for the experiencer that evokes positive emotions and facilitates social connection. Future research could explore the relationship between the novelty of location and activities associated with tourist participation and the impact on the experience.
Information-Gaining Moves in Game Theory
Authors: Kevin Young. Mentors: Gretchen Ellefson. Insitution: Southern Utah University. The concept of competition is not new to humans, nor is it simple. Countless philosophers throughout the years have approached competition in many ways. One of the core subjects that philosophers have used to discuss competition is that of decision theory. Decision theory, in short, discusses the best things to do. Game theory, a subset of decision theory, discusses the same within the context of games, or in other words, strategy. Both of these subjects have been used to evaluate how best to win games of chance, games of choice, and games in between. I work to explore the concept of making moves to gain information, seeking to learn another person’s moves before you make your own. This subset of moves deserves recognition, especially within the modern eras of competition.
Preferential Capture of Bacteria Using pDA-coated Magnetic Nanoparticles
Authors: Alyson Camacho, Camille Bryner, Bowen Houser. Mentors: William Pitt. Insitution: Brigham Young University. Current methods for the diagnosis of bacterial infections require time consuming cultures. To prevent deaths caused by sepsis, faster methods for bacterial identification and antibiotic susceptibility methods are urgently needed. Necessary to these faster methods is the ability to separate and concentrate bacteria. While techniques such as filtering and centrifugation have been explored for this purpose, we propose an innovative approach. Polydopamine (pDA) is a remarkably adhesive polymer that has been used to create antibacterial and anti-biofouling coatings on medical devices. In this study, however, we show how magnetic nanoparticles (MNPs) coated with pDA can selectively bind and remove specific bacteria from suspensions. For these experiments, pDA- MNPs were added to suspensions of bacteria mixtures and allowed to bind for 10 minutes. The MNP/bacteria mixture was then placed on a holder with a magnet which collected the MNPs on the side of the test tube. Finally, the bacterial supernatant was carefully removed and plated. Capture efficiency of the beads was calculated and it was shown that the pDA-coated MNPs preferentially isolated S. epidermidis from a suspension of both S. epidermidis and E. coli. This approach holds great potential for separating bacteria from clinical samples like urine or blood, enabling faster and more efficient diagnosis of bacterial infections.
De novo genome assembly and annotation of Curculio sp. (Coleoptera: Curculionidae) provides insight into diapause evolution
Authors: Daniel Davis, Paul B Frandsen. Mentors: Paul B. Frandsen. Insitution: Brigham Young University. The nut and acorn weevils of the genus Curculio (Coleoptera: Curculionidae) are a diverse group of beetles with a unique life history. A female weevil uses her rostrum (snout) that is about the length of her body to dig into the flesh of a developing hard-shelled seed and lay her eggs inside where they can safely develop into larvae. After the grown larvae exit their seeds, they spend one or more years burrowed in the soil near host trees. During this time they enter diapause, a state of suspended development to minimize the energy that they expend. Studies indicate that a major purpose of this behavior is to align their adult emergence with masting events (large scale seed production every 2-5 years) of their host trees. Between, and even within, Curculio species, there is significant variation in diapause lengths and behaviors (Higaki, 2016). This wide array of adaptive behaviors is a result of the coevolution between these insects and their various hosts. Here, we present a high quality genome of a Curculio species. With this genome, we discuss the genetic and evolutionary factors that have given rise to this unique life history of Curculio and future plans to compare the genomes of multiple Curculio to further unravel this mystery.
Diversity and community in macroinvertebrates of Timpanogos Cave, Utah
Authors: Erika Frandsen. Mentors: C. Riley Nelson. Insitution: Brigham Young University. The Timpanogos Cave System consists of three caves in American Fork, Utah. In 2003, the National Park Service (NPS) commissioned Dr. Riley Nelson and laboratory students to conduct a survey of the diversity and abundance of terrestrial arthropod species found within the caves. Over the two years they sampled in Timpanogos Caves, they identified 55 species of macroinvertebrates in an unpublished report.In the 20 years since the last sampling, many environmental factors could’ve changed in these caves, contributing to an overall decrease in both abundance and biodiversity of fauna. Therefore, we repeated the sampling done by the Nelson lab in 2003-2004 for the duration of May 2023-October 2023 to compare the two time periods’ macroinvertebrate communities.The six taxonomic families found most abundantly in 2003-2004 continue to be the most abundant families found in 2023. Additionally, a new taxon of cave beetle Rhadine sp. not found 20 years ago was discovered early in our sampling of 2023. Despite the increase in visitation over the past 20 years, at this stage in the analysis, the macroinvertebrate community within the caves seems to have almost no loss of diversity. Additionally, the appearance of new taxa indicates that there is still more life and diversity within the caves left to discover.
The Portrayal Of Reality Through The Lens Of The Astonishing World Of Studio Ghibli
Authors: Emma Manley. Mentors: Johnathan Chidester. Insitution: Southern Utah University. This presentation will be about the indescribable magical Studio Ghibli movies. Specifically, I will be analyzing how these movies are great at representing life. From the weird, outstanding world of Chihiro’s ghost town from Spirited Away, all the way down to the simple little Iron town of Princess Mononoke. These movies are amazing, not just for their remarkable art work and lovable characters, but for the relatability and symbolism of these stories. These stories are weird and strange, but so is everyone. We are human. A complex being that is evolving every single day. We have creative minds in all sorts of differing ways, and these movies are great at explaining this; they are complex, imaginative, and life-like. I will not be defining every single Studio Ghibli movie, but I have chosen a few movies I wish to expand on. My first one is The Wind Rises. This movie is based on a true story about Jiro Horikoshi, the designer of the A5M fighter aircraft. This story goes into detail about his life: his failures, his trials, and the hardships he endured. The second one is Spirited Away: this story is Studio Ghibli's most famous work. This is a story of a little girl who gets trapped in a spirit world all alone. Along her journey she makes new friends, discovers new ideas, and is able to discover who she is. The final movie is Princess Mononoke: Princess Mononoke is Studio Ghibli's masterpiece. The young warrior Ashitaka is strucken with a curse and will soon die. This story is about him getting rid of his curse, discovering how to make peace and stop hate.We should know and understand these movies, not because they are just films and that I like them, but because they are innovative and original. With these movies we jump into a creative world that we can make our own. These movies are relatable in every sense because they are just like us: weird, quirky, and just so compelling. We feel a connection to the trials that each character has because in a sense we all have been through something of the same. These movies represent life in a silly way that I wish to know more about. I will expand on the way these movies are made, the theme and writing, and the characters that we relate to.
Low Academic Self-Efficacy Predicts Higher Depression and Anxiety in Students of Color
Authors: Nathaniel Call. Mentors: Chelsea Romney. Insitution: Brigham Young University. New college students may experience stressors like difficult academic work, new social environments, and living on their own for the first time. Students of color may experience additional stressors due to minority stress, experiences of racism, and unfamiliar social contexts. We collected self-reported depression, anxiety, and academic self-efficacy measures from 742 first-year college students. We found that students of color reported higher levels of depression, F(1, 733) = 11.04, p < .001, and anxiety F(1, 734) = 14.91, p < .001, compared to white students. Further, we found that white students reported higher academic self-efficacy, F(1, 742) = 9.97, p = .002, compared to students of color. This suggests that lower confidence in academic work is related to higher depression and anxiety in nonwhite students, r(661) = -.32, p < .001. Our study builds on previous research by providing a possible pathway through which students of color develop more depression and anxiety through lower academic self-efficacy compared to white students.