Fine Arts
Antioxidant Combinatory Cytomegalovirus Treatment
Authors: Kade Robison, David Britt, Elizabeth Vargis. Mentors: David Britt. Insitution: Utah State University. Cytomegalovirus (CMV) is the leading cause of sensorineural hearing loss, the most prevalent form of permanent hearing loss, worldwide. CMV treatment requires long term administration of nucleoside analog antivirals such as ganciclovir (GCV). Although ganciclovir effectively inhibits CMV, it also inhibits neutrophils, an essential component of the immune system, reducing optimal treatment duration. Previous studies have demonstrated that ganciclovir toxicity can be reduced while maintaining effective CMV inhibition by combining subtherapeutic doses of ganciclovir with quercetin, an FDA approved hydrophobic flavonoid with antiviral properties, solubilized with a mitochondria-targeting drug delivery vehicle, Poloxamer 188 (P188). Further efforts have been made to optimize the combinatorial ganciclovir with quercetin encapsulated in P188 (GCV-QP188) treatment by exploring the potential benefits of adding antioxidant vitamins to the GCV-QP188 treatment. One of the pathways by which CMV induces hearing loss is the generation of excess reactive oxygen species, specifically in the mitochondria. Current literature suggests that the toxic effects of the reactive oxygen species produced by CMV in the could be reduced via natural vitamin antioxidant treatments. Ascorbic acid, also known as vitamin C, was the first antioxidant vitamin investigated due to its synergistic antiviral properties when paired with quercetin to treat SARS-CoV-2. Yet, the addition of ascorbic acid into the combinatorial treatment was more toxic than the existing GCV-QP188 treatment. Current efforts are concentrated on assessing the effect of selectively delivering hydrophobic antioxidants to the mitochondria of CMV infected mouse fibroblast cells as targeted antioxidant delivery will require lower antioxidant concentrations, reducing associated toxicity. The addition of hydrophobic antioxidants retinol and alpha-tocopherol, vitamins A and E respectively, delivered via mitochondria-targeting P188 to the existing GCV-QP188 treatment is being investigated to determine if it will significantly improve GCV-QP188 treatment efficacy.
The relationship between differential finger force in a squeezing task and spin characteristics of a four-seam fastball thrown by division-I collegiate baseball pitchers
Authors: Anthony Cornwall, Dylan Snook, Travis Ficklin. Mentors: Travis Ficklin. Insitution: Utah Tech University. The purpose of this study was to discover any relationships between individual finger force capabilities of collegiate pitchers and the spin rates and axes of their four-seam fastballs. NCAA Division-I pitchers participated in the study. Using a hand-held dynamometer, multiple trials of a squeezing task were performed by each pitcher. Five trials were made using both index and middle fingers at maximum isometric effort. Then, in counterbalanced order, pitchers also duplicated the isometric squeeze isolating the index and middle fingers in one-fingered squeezes. Pitchers were constrained to make the maximum effort squeezes in a time frame similar to that of delivering a pitch.Spin axis and rate for their four-seam fastballs were taken from previously collected ball flight tracking using a field Trackman system. Analysis was performed for any relationships among axis tilt and relative finger contribution to total force, as well as spin rates with total isometric force. Additional relationships based upon anthropometric measures of the hand and fingers were also explored and the results are to be presented.
Internalized HIV stigma among women giving birth in Tanzania: A mixed-methods study
Authors: Anya Weglarz. Mentors: Melissa Watt. Insitution: University of Utah. AbstractBackgroundWomen living with HIV (WLHIV) commonly experience internalized HIV stigma, which refers to how they feel about themselves as a person living with HIV. Internalized stigma interferes with HIV care seeking behavior and may be particularly heightened during the pregnancy and postpartum periods. This thesis aimed to describe internalized HIV stigma among WLHIV giving birth, identify factors associated with internalized HIV stigma, and examine qualitatively the impacts of internalized HIV stigma on the childbirth experience.MethodsPostpartum WLHIV (n=103) were enrolled in the study between March and July 2022 at six clinics in the Kilimanjaro Region, Tanzania. Participants completed a survey within 48 hours after birth, prior to being discharged. The survey included a 13-item measure of HIV-related shame, which assessed levels of internalized HIV stigma (Range: 0-52). Univariable and multivariable regression models examined factors associated with internalized HIV stigma. Qualitative in-depth interviews were conducted with pregnant WLHIV (n=12) and postpartum WLHIV (n=12). Thematic analysis, including memo writing, coding, and synthesis, was employed to analyze the qualitative data.ResultsThe survey sample had a mean age of 29.1 (SD = 5.7), and 52% were diagnosed with HIV during the current pregnancy. Nearly all participants (98%) endorsed at least one item reflecting internalized HIV stigma, with an average endorsement of 9 items (IQR = 6). The most commonly endorsed items were: “I hide my HIV status from others” (87%), “When others find out I have HIV, I expect them to reject me” (78%), and “When I tell others I have HIV, I expect them to think less of me” (75%). In the univariable model, internalized stigma was associated with two demographic characteristics: being Muslim vs. Christian (ß = 7.123; 95%CI: 1.435, 12.811), and being in the poorest/middle national wealth quintiles (ß = 5.266; 95%CI: -0.437, 10.969). Internalized stigma was associated with two birth characteristics: having first birth vs. having had previous births (ß = 4.742; 95%CI: -0.609, 10.093), and attending less than four antenatal care appointments (ß = 5.113; 95%CI: -0.573, 10.798). Internalized stigma was associated with two HIV experiences: being diagnosed with HIV during the current pregnancy vs. diagnosis in a prior pregnancy (ß = 5.969; 95%CI: -1.196, 10.742), and reporting experiences of HIV stigma in the health system (ß = 0.582; 95%CI: 0.134, 1.030). In the final multivariable model, internalized stigma was significantly associated with being Muslim vs. Christian (ß = 6.80; 95%CI: 1.51, 12.09), attending less than four antenatal care appointments (ß = 5.30; 95%CI: 0.04, 10.55), and reporting experiences of HIV stigma in the health system (ß = 0.69; 95%CI: 0.27, 1.12). Qualitative discussions revealed three key themes regarding the impact of internalized HIV stigma on the childbirth experience: reluctance to disclose HIV status, suboptimal adherence to care, and the influence on social support networks.ConclusionWLHIV giving birth in this sample experience high rates of internalized HIV stigma. This stigma was significantly associated with being Muslim, as opposed to being Christian, attending less than four ANC appointments, and reporting experiences of HIV stigma in the healthcare setting. Other factors that were correlated to higher levels of internalized stigma were socioeconomic status, parity, and timing of HIV diagnosis, all of which can impact access to and engagement in healthcare services during the intrapartum and postpartum periods. Internalized HIV stigma impacts the childbirth experience for WLHIV, making the labor and delivery setting an important site for intervention and support.
Revolutionary goniometric knee attachment
Authors: Syrus Miner, Ryland Day, Justin LeClair, Adam Dimaio. Mentors: Randy Klabacka. Insitution: Utah Tech University. Accurate measurement of the knee joint angle is important for diagnosis, treatment, and rehabilitation. With the advancement of wearable technology the measurement of range of motion can now be measured dynamically during exercises. The primary purpose of this research project is to provide a mechanism by which physical therapy outcomes can be improved after knee replacement surgery. This will be accomplished by creating a knee brace attachment that will employ motion detecting sensors to chart the post-op and/or post-injury progression of the movement of the knee joint. It is estimated that approximately 5% of the population over the age of 50 in the United States are currently living with a knee replacement. It has been shown that knee pain has been coupled with depression, low self-esteem, eating disorders, and an overall lower satisfaction in life. Improved knee function has reduced the dissatisfaction experienced in life as daily activities are able to be retained. While physical therapy helps recovery of range of motion for patients, the incentive for patients to complete tasks at home and the lack of standardized data collection may impede patient recovery times. The desired outcome of this research is to create a device that reports the effectiveness of a patient's treatment by using off-the-shelf electronics to accurately measure knee joint range of motion and communicate it to physicians.
Opioid Use Disorders Treatment Related Disparities in Patients with Psychiatric Illness
Authors: Caroline Nielson, Connor Baird. Mentors: Robert Kagabo. Insitution: Utah Tech University. Opioid Use Disorders Treatment Related Disparities in Patients with Psychiatric IllnessAuthors: Caroline Nielson, Connor Baird, Robert Kagabo, PhD, MSW, MPHAbstractBackgroundThis study is a review of peer-reviewed articles of Opioid Use Disorders (OUD) treatment among individuals with psychiatric illness. OUD is a subset of substance use disorders (SUD) that is chronic and a growing public health concern. There were 47,000 opioid-related deaths in 2018 in the US; OUD is responsible globally for 68% of the drug-related deaths. OUD can result from either prescribed or non-prescribed opioid use. Some populations such as individuals with psychiatric illness have high rates of prescription opioids yet face opioid use treatment and research-related disparities. This review study examines OUD treatment and research-related disparities among patients with psychiatric illness with the goal to improve treatment among this vulnerable population.MethodsUsing PubMed and PsycINFO databases, we performed a search of journal articles regarding OUD treatment which were published between 2010 and 2023. We then completed a review of the journal articles using narrative overview guidelines. All articles reviewed were from randomized controlled trial (RCT) studies. Examples of search terms used include OUD treatment and mental health; OUD and psychiatric illness RCT studies; and opioid use treatment and mental health. Studies included were those of OUD treatment among individuals with psychiatric illness and or with a DSM5 or DSM4 diagnosis. Any studies that did not include OUD treatment and, or a DSM diagnosis, or RCT design were excluded. To avoid duplication, only one journal article from a study was included. ResultsThere were 18 journal articles reviewed that met the inclusion criteria. Treatment periods ranged from 8-24 weeks. Generally, studies excluded individuals with diagnoses such as schizophrenia, schizoaffective disorders, or other serious mental health diagnoses. Several studies included participants with a DSM5 or DSM4 diagnosis of OUD, while excluding individuals with other psychiatric or substance use disorders. Most of the studies used pharmacological treatments and only a few studies had combined pharmacological and behavioral treatments. The common medicines in pharmacological treatments were methadone, buprenorphine, and naltrexone.ConclusionOUD treatment and research related disparities exist among individuals with psychiatric illness, yet this is the population who suffer most from OUD. Additional studies regarding OUD treatment among individuals with psychiatric illness are needed to improve OUD treatments and reduce OUD-related morbidity and mortality rates.
The Inseparable Connection Between Body and Mouth
Authors: Maddy Howard, Brooke Dension, Shanna Groesbeck. Mentors: Sandy Wilson. Insitution: Utah Valley University. AbstractThere are many systemic diseases that are linked to oral health. This literature review specifically examines different studies and academic journals that have studied the relationship between oral health, obesity, heart disease, and diabetes. Obesity is linked to the patient's oral health in many ways. When patients are consuming large quantities of food more often than normal, this results in a more acidic environment along with energy for bacteria to grow. One study found a correlation between obesity and risk factors such as “frequency of brushing teeth, smoking, tooth loss, gingivitis, and dental caries (Yilmax & Somay, 2021). This article discusses the strong correlation between oral health and heart disease. Several studies emphasize the importance of dental hygienists educating their patients about the link between their oral and cardiovascular health. The articles conclude that treating periodontal disease more effectively and aggressively could lead to a marked reduction in coronary heart disease rates and vice versa.Diabetes and periodontal disease is also examined at length in this literature review. Diabetes and periodontitis is described as a ‘two-way relationship’. Evidence shows that individuals with diabetes, type 1 or type 2, are 34% more likely to develop periodontal disease. On the other hand, individuals experiencing periodontal disease are 53% more likely to develop diabetes (Wu, et al., 2020). This literature review will explore the importance of oral health in keeping your entire body healthy.ReferencesArora, A., Rana, K., Manohar, N., Li, L., Bhole, S., & Chimoriya, R. (2022). Perceptions and practices of oral health care professionals in preventing and managing childhood obesity. Nutrients, 14(9), 1809. 10.3390/nu14091809.Batty, G. D., Jung, K. J., Mok, Y., Lee, S. J., Back, J. H., Lee, S., & Jee, S. H. (2018). Oral health and later coronary heart disease: Cohort study of one million people. European Journal of Preventive Cardiology, 25(6), 598-605. 10.1177/2047487318759112Centers for Disease Control and Prevention. (2022). Defining adult overweight & obesity. Centers for Disease Control and Prevention. Deraz, O., Rangé, H., Boutouyrie, P., Chatzopoulou, E., Asselin, A., Guibout, C., Van Sloten, T., Bougouin, W., Andrieu, M., Vedie, B., Thomas, F., Danchin, N., Jouven, X., Bouchard, P., & Empana, J. P. (2022). Oral condition and incident coronary heart disease: A clustering analysis. Journal of Dental Research, 101(5), 526-533. 10.1177/00220345211052507Sanchez, P., Everett, B., Salamonson, Y., Ajwani, S., Bhole, S., Bishop, J., Lintern, K., Nolan, S., Rajaratnam, R., Redfern, J., Sheehan, M., Skarligos, F., Spencer, L., Srinivas, R., & George, A. (2017). Perceptions of cardiac care providers towards oral health promotion in Australia. Collegian, 25(5), 471-478. https://doi.org/10.1016/j.colegn.2017.11.006Preshaw, P. M., Alba, A. L., Herrera, D., Jepsen, S., Konstantinidis, A., Makrilakis, K., & Taylor, R. (2012). Periodontitis and diabetes: A two-way relationship. Diabetologia, 55(1), 21-31. 10.1007/s00125-011-2342-yWu, C.-Z., Yuan, Y.-H., Liu, H.-H., Li, S.-S., Zhang, B.-W., Chen, W., An, Z.-J., Chen, S.-Y., Wu, Y.-Z., Han, B., Li, C.-J., & Li, L.-J. (2020). Epidemiologic relationship between periodontitis and type 2 diabetes mellitus. BMC oral health, 20, 204. 10.1186/s12903-020-01180-wYilmax, Busra. & Somay, Efsun. (2021). Is obesity a problem that threatens oral health in adults? Cukurova Medical Journal, 46(3), 1215-1221. DOI: 10.17826/cumj.950243
Investigating Intraspecific Temporal Behavior in Mule Deer (Odocoileus hemionus) across Life Stages: Fawning and Non-Fawning.
Authors: Danielle Terry, Seth Helton, Michael Creer. Mentors: Austin M Green. Insitution: University of Utah. With anthropogenic influence increasing worldwide, it is important to understand how wildlife behavior changes in response to urbanized landscapes. Urban ecosystems represent relatively novel landscapes with unique threats and opportunities that can completely restructure species’ population composition and dynamics. Mule deer (Odocoileus hemionus) have been shown to alter their temporal activity in response to urbanization across their range of the Intermountain West of the United States. In this study, we will investigate the effects of anthropogenic influence on mule deer temporal activity behavior across two distinct life stages: fawning and non-fawning. Data for this study will come from the citizen science camera trapping project, Wasatch Wildlife Watch. The full project area is separated into two study sites: “Rural” and “Urban”. This study will be based around the wild-to-urban interface of the Central Wasatch Mountain Range and the Bear River Mountain Range, which composes some of the most highly recreated portions of the Uinta-Wasatch-Cache National Forest, receiving approximately 9,000,000 visitors annually (U.S Forest Service). We will investigate the proposed differential effects of anthropogenic influence and urbanization on mule deer diel activity patterns in the fawning vs. non-fawning life stages. Also, we will inquire whether intraspecific responses in mule deer diel activity alter interspecific interactions, especially with fawning predators, and how these responses might interact with environmental factors. We predict that anthropogenic influence and urbanization alter the diel activity patterns of fawning mule deer more than non-fawning deer and that the presence and activity of fawn predators (e.g., coyote [Canis latrans]) would have a stronger effect on fawning deer activity than non-fawning deer activity.
Meta-Analysis of Success Determining Factors of Healthcare Innovations
Authors: Barry Gyman. Mentors: Cody Reeves. Insitution: Brigham Young University. The purpose of this paper is to qualify and analyze the leading driving forces in determining the success of healthcare innovations in a variety of subspaces in the healthcare industry. Health is one of the largest markets in America and is almost universally relied upon. As the systems and technologies of healthcare are innovated and improved upon, the quality and efficiency of this care stands to increase, potentially benefiting both those who provide care, those who receive care, or both. The healthcare industry offers a plethora of niches needing innovating and the potential of high economic return for the producers, and yet only a small portion of innovations are adopted and successfully integrated with some areas having a failure rate approaching or exceeding 90% (Sun et al., 2022)(Jacobs et. al, 2015). What propels these few successful innovations towards adoption that so many other innovations fail to achieve? Through the analysis of dozens of papers researching success robustness in various healthcare fields, such as pharmacology and technological innovation, we will summarize the data in search of shared commonalities among successful innovations. Sun, D., Gao, W., Hu, H., & Zhou, S. (2022). Why 90% of clinical drug development fails and how to improve it?. Acta pharmaceutica Sinica. B, 12(7), 3049–3062. https://doi.org/10.1016/j.apsb.2022.02.002Jacobs, S.R., Weiner, B.J., Reeve, B.B. et al. Determining the predictors of innovation implementation in healthcare: a quantitative analysis of implementation effectiveness. BMC Health Serv Res 15, 6 (2015). https://doi.org/10.1186/s12913-014-0657-3
Perceived Risks for Maternal Mortality Among Utah Women
Authors: Marie Gibb. Mentors: Francine Jensen. Insitution: Utah Valley University. Maternal mortality, also known as maternal death, is defined as the death of a woman during pregnancy and up to one year postpartum. (MacDorman et al., 2021; Spelke & Werner, 2018). The United States is the only developed nation where the rates of maternal mortality are rising, and they have been rising for twenty years (Simpson, 2019; Spelke & Werner, 2018). This incidence represents a maternal health crisis in the United States. On average, 700 women in the United States die each year from pregnancy-related complications. This equates to 17.2 maternal deaths for every 100,000 live births (Simpson, 2019). Currently, the maternal mortality rate for Utah is higher than the national average at 21.5 maternal deaths per 100,000 live births (Utah Department of Health and Human Services, 2023). According to More than 60% of these deaths are preventable (MacDorman et al., 2021; Simpson, 2019).The leading causes of maternal death in the United States are hemorrhage, preeclampsia, eclampsia, hypertension, embolisms, and cardiomyopathy, which often lead to cardiovascular disorders (MacDorman et al., 2021; Simpson, 2019). The Utah Health and Human Services (2023) reported that increases in heart disease, hypertension, diabetes, mental health disorders, and other chronic conditions complicate pregnancies and are contributing to maternal mortality in Utah. The American Heart Association has cautioned that pregnancy complications like preeclampsia, gestational diabetes, and preterm delivery are linked to maternal heart disease later in life (Parikh et al., 2021). Research suggests that each episode has a cumulative effect (Marill, 2021), meaning, the more pregnancies women have, and the more complications women have during pregnancy, the more elevated their risks are in general for cardiovascular disorders as they age. A qualitative survey was sent out using snowball sampling to women over the age of 18 in Utah asking about their understanding of cardiovascular risk factors and current health conditions. Findings showed that women were unaware of their potential cardiovascular risks associated with pregnancy. Raising awareness regarding these cardiovascular risks may be the number one preventative strategy, as women are the ones who bear the personal and physical risks. If pregnant women are aware of their cardiovascular risk factors, they can be empowered to raise concerns when necessary. Future interventions may include educating all women of childbearing years about cardiovascular risks prior to pregnancy, as well as more frequent screening of women during and after delivery (Marill, 2021). ReferencesMacDorman, M. F., Thoma, M., Declcerq, E., & Howell, E. A. (2021). Racial and ethnic disparities in maternal mortality in the United States using enhanced vital records, 2016‒2017. American Journal of Public Health, 111(9), 1673–1681. https://doi.org/10.2105/ajph.2021.306375Marill, M. C. (2021). Getting to the heart of America's maternal mortality crisis. Health Affairs, 40(12), 1824-1829. https://doi.org/10.1377/hlthaff.2021.01702Parikh, N. I., Gonzalez, J. M., Anderson, C. A. M., Judd, S. E., Rexrode, K. M., Hlatky, M. A., Gunderson, E. P., Stuart, J. J., & Vaidya, D. (2021, May 4). Adverse pregnancy outcomes and cardiovascular disease risk: Unique opportunities for cardiovascular disease prevention in women: A scientific statement from the American Heart Association. Circulation, 143(18), e902-e916. https://www.ahajournals.org/doi/10.1161/CIR.0000000000000961Simpson, K. (2019). Maternal mortality in the United States. MCN, The American Journal of Maternal/Child Nursing, 44 (5), 249-249. doi: 10.1097/NMC.0000000000000560.Spelke, B., & Werner, E. (2018). The fourth trimester of pregnancy: Committing to maternal health and well-being postpartum. Rhode Island Medical Journal (2013), 101(8), 30–33.Utah Department of Health and Human Services. (2023, March 16). Complete health indicator report of maternal mortality. Retrieved Sat, 09 September 2023 from the Utah Department of Health and Human Services, Indicator-Based Information System for Public Health website: http://ibis.health.utah.gov. https://ibis.health.utah.gov/ibisph-view/indicator/complete_profile/MatMort.html
Analysis of Estrous Cycle in POMC-deficient mice
Authors: Isaac Gillins, Zoe Thompson. Mentors: . Insitution: Utah Valley University. The pro-opiomelanocortin (POMC) gene is expressed in the hypothalamus and pituitary and is cleaved into several peptide hormones. One of these is melanocyte-stimulating hormone (MSH), which is involved in food intake and energy expenditure. A mutation in the POMC gene can result in a rare condition in which the subject displays early-onset obesity characterized by severe hyperphagia (i.e. excess hunger). Affected subjects may also show a lack of pubertal development. In this experiment, we will study mice with a mutation in the POMC gene. They show some of the same symptoms as humans with a POMC mutation, including hyperphagia, obesity & infertility. Specifically, we will investigate the estrous cycle in female mice to determine if they are cycling normally. The estrous cycle, similar to the menstrual cycle in humans, is characterized by changes in reproductive hormones, and can be divided into four stages: proestrus, estrus, metestrus, and diestrus. Cells lining the surface of the vagina have been previously collected using a pipette smear technique. Each stage can be characterized by the proportion of three cell types: epithelial cells, cornified cells, and leukocytes. These cells correspond to the fluctuating hormone levels during the estrous cycle. Images of these samples will be assessed for the composition of cells to determine the stage of the estrus cycle, and whether or not the cycle displays normal patterning. Because POMC-deficient mice are infertile, we hypothesize their estrous cycles may be atypical. For example, the estrous cycle of the POMC-deficient mice may appear in irregular order or with one stage being predominant over the rest. If the estrous cycle is atypical, then we will measure the hormones directly to confirm that the infertility is caused by changes in hormonal regulation. This will help us to understand more about how the POMC gene affects reproductive function.
Transcriptome-Based Risk Score Predicts Time to First Treatment for Multiple Myeloma Patients
Authors: Ishmael Elliott Molina-Zepeda, Brandt Jones, Myke Madsen, Douglas Sborov, Brian Avery, Nicola J. Camp . Mentors: Nicola J. Camp. Insitution: University of Utah. Multiple Myeloma (MM) is a malignancy of plasma cells and one of the more common hematological malignancies (6.3/100,000 new cases/year). Although treatments have improved, most patients fail their first line of treatment and ultimately do not survive beyond 5 years. Identifying patients at high risk of failing treatment early is a critical need. SPECTRA is a statistical technique developed by the Camp Lab to characterize global gene expression (the transcriptome) by representing it as multiple quantitative tumor variables. Spectra variables allow gene expression to be incorporated into predictive modeling to identify high-risk groups.Transcriptome data for myeloma cells was available from 768 patients in the international CoMMpass study where 39 spectra variables were derived. Each patient has a value for each of the 39 variables (their spectra “barcode”); patients can be compared for each bar in the barcode. Predictive modeling using spectra variables was successful in identifying risk groups for time to treatment failure, such that a patient’s tumor transcriptome can be used to predict whether they are at high risk of having their treatment fail earlier.To replicate the CoMMpass data findings, we collect and process local biological samples from MM patients at the Huntsman Cancer Institute (HCI). We collect bone marrow samples, which are then cell-sorted to identify tumor (CD138+) cells. RNA is extracted from these cells and sequenced to generate transcriptome data. Then the spectra barcode is calculated.Utilizing the SPECTRA technique provides a more complete understanding of MM by better characterizing the tumor. Each spectra is a tumor characteristic. Our future research includes an investigation of whether inherited variations (in normal DNA from saliva or whole blood) are associated with the transcriptome risk score. We are also pursuing the SPECTRA technique in several other cancers.
Crest Factor Analyses for Launch Vehicle Noise
Authors: Zach Hendry, Carson Cunningham. Mentors: Micah Shepherd, Kent Gee. Insitution: Brigham Young University. The number of rocket launches per year has been increasing dramatically since 2015, with more rockets launched in the year 2022 than had ever been launched. With the increase in the number of launches per year, it has become increasingly important to understand the impact of rocket launches on the greater environment and community. One important aspect of a rocket launch is the level of acoustical energy that is produced during liftoff. Instantaneous pressure values have been regularly recorded up to 180 dB. Due to these high levels, it’s become important to be able to accurately predict the noise produced by a rocket. One powerful tool used in predicting this sound is the crest factor. The crest factor is an acoustical measurement that shows the difference between the maximum sound pressure (i.e. the crest) compared against the averaged value of the sound pressure. Additionally, this information is vital for planning acoustical equipment in order to avoid measurement clipping. This presentation will be about crest factor analyses performed on the Antares NG-19 rocket launch from August 2023.
The Caregiving Experience for Children Diagnosed with Cancer: A Secondary Analysis
Authors: Sofia Denise Flowers. Mentors: Lauri Linder. Insitution: University of Utah. Background and Purpose: In the year 2023, roughly 9,000 children will be diagnosed with cancer each year in the United States. Dealing with a potentially fatal diagnosis is already difficult for many grown adults, let alone a young child. The aim of this project is to describe caregiving experiences of parents and children with cancer as related through feedback comments within written and oral feedback to proposed items to measure self-efficacy for managing their child’s symptoms and behaviors used to manage their child’s symptoms.Methods: This project involved a secondary analysis of qualitative data from 21 parents (19 mothers; mean age 38 years) of school-age children with cancer who participated in a study to establish the content validity of instruments to measure aspects of symptom management. Data consisted of interview transcripts and free responses to the content review surveys. The data were then uploaded to Dedoose. My mentor and I worked independently to identify statements pertaining to parents’ experiences in managing their child’s symptoms and responding to the child’s cancer diagnosis. We then met together to reconcile content and then organize parents’ statements into categories and subcategories. Results: 101 excerpts were extracted from the transcripts and included for the secondary analysis. Excerpts were grouped into four main categories: informational resources, social support, emotional support, and medication management Within these four main categories, subthemes of professional staff support, managing child attitude and mood changes, and balancing between being a parent and their child’s medical advocate were present. Conclusion: The insights gained from this project can guide the information healthcare providers need to provide better care to the child and additional support to parents. This can allow professional staff to get a stronger understanding of not just the family’s medical needs but their informational, social, and emotional needs as well.
GPU-Accelerated Monte Carlo Raman Spectroscopy Simulation: Unlocking Computational Speed for Cancer Detection
Authors: Thomas Caldwell. Mentors: Dustin Shipp. Insitution: Utah Valley University. In this research project, we have transformed an existing Raman spectroscopy simulation, enhancing its performance and capabilities through the integration of parallel computing with GPU acceleration. This significant improvement in computation time allows us to break through previous computational limitations, enabling more sophisticated and complex applications of the simulation. The principal applications we will be assessing are the viability and potential of spatially offset Raman spectroscopy (SORS) for deeper tissue analysis, exploring the possibilities of topographical imaging using Raman techniques, and the advanced application of chemical imaging of microscopic tumors. This expanded scope demonstrates the simulation's potential in early cancer detection.
Health Insurance Literacy Among UVU Students
Authors: Emmalie Parker. Mentors: Heather Thiesset. Insitution: Utah Valley University. Changes in health insurance due to the Affordable Care act created a bridge for college students to remain on their parent or guardian’s health insurance for a longer period of time. However, little is done to close the gap of education deficiency in the area of health insurance literacy during this time. While most students in a universal health system have relatively few options to choose from, students in the US are faced with many different plans through employment or the open marketplace. Therefore, in order to ensure adequate access to care, it is imperative that students understand the fundamentals of this system in the US. This quantitative cross-sectional survey sampled 500 currently registered UVU students to assess their knowledge, attitudes, beliefs and healthcare utilization. This data was stratified by age and sex. Descriptive statistics and chi2 analyses were performed. This study showed that disparities in healthcare literacy affect healthcare utilization and can be a catalyst for long-term healthcare access issues for students and their families.
Actitudes, Barreras, y Cambios: Adapting Prehabilitation for Latino Patient Populations
Authors: Quinn Gerber, Lucas Carpenter, Jacob Clemons, Cindy Kin. Mentors: Cindy Kin. Insitution: Brigham Young University. Introduction: It is vital that patients are adequately prepared for surgical intervention. To meet this need, many medical centers have adopted prehabilitation protocols. The aim of this study was to establish an in-depth comprehension of the attitudes towards surgery and barriersand preferences to prehabilitation for patients identifying as Latino, in order to develop a preliminary framework for adapting prehab programs to best meet the needs of this specific patient population.Methods: We conducted qualitative semi-structured in-person one-on-one interviews with Latino patients who had recently undergone major abdominal surgery. The interviews, conducted at an academic medical center, were audio-recorded, transcribed verbatim, translated into English (as needed), iteratively coded, and discussed by four researchers to reach consensus. We used thematic analysis to identify shared attitudes held by patients and common barriers to the adoption of prehabilitation programs. Analysis of these attitudes and barriers, along with stated patient preferences, led to the development of several ideas that physicians can implement to increase prehab adoption among Latino patients.Results: We interviewed 16 patients, at which point we reached thematic saturation. The patients were on average 52 years old (range 20 to 79) and 50% were women. Our pooled kappa score was .92, indicating a very high degree of concordance among the coding researchers. We identified five common attitudes held by Latino patients regarding surgery: anxiety associated with hospitalizations and surgical procedures, deep trust in physicians, reliance on positivity, tight-knit families/communities, and prominent religious and cultural beliefs. A lack of understanding, physical limitations, a reactive/delayed approach to healthcare, dietary barriers, and mental barriers emerged as obstacles to prehabilitation adoption. These attitudes and barriers, along with direct patient feedback, led us to identify several programmatic priorities that may increase adherence to prehab. These components consist of face-to-face interaction, increased communication, patient and physician collaboration in program development, and family/support group engagement in surgical preparation.Conclusion: Our study provides physicians preliminary insight into customizing prehabilitation programs to best meet the needs and customs of the Latino community, including anxiety associated with hospitalizations, strong social support, and a dominant role of religious faith in coping with illness. We identified several critical components that may make prehab more culturally competent and thus more likely to be adopted by patients. These include in-person coaching, increased information about the upcoming operation and recovery, and engagement of family members. We recommend that healthcare teams committed to prehabilitation consider these needs to make their programs more attractive and accessible to their Latino patients.
Association of Cyclooxygenase 1 (COX-1) rs4648298 and Cyclooxygenase 2 (COX-2) rs20417 Polymorphisms and Prostatic diseases Among Lebanese Males
Authors: Brock Sheehan, Bryson Edwards, Ivanna Soto, Justice Vance, Tyler Haywood, Jefferey Goddard, Logan Seegmiller, Mohammed A. El Saidi, Wissam R Zaidan , Asmahan El-Ezzi , Dr. Ruhul Kuddus. Mentors: Dr. Ruhul Kuddus. Insitution: Utah Valley University. Association of Cyclooxygenase 1 (COX-1) rs4648298 and Cyclooxygenase 2 (COX-2) rs20417 Polymorphisms and Prostatic diseases Among Lebanese MalesBrock J Sheehan1*, Bryson Edwards1, Ivanna Soto Medrano1, Justin Vance1, Tyler Haywood1, Jeffrey Goddard1, Logan Seegmiller1, Mohammed A. El Saidi2, Wissam R. Zaidan3, Asmahan A. El-Ezzi3, 4, Ruhul Kuddus11Department of Biology, 2Department of Strategic Management and Operations, Utah Valley University, Orem UT; 3Radioimmunoassay Laboratory, Lebanese Atomic Energy Commission, Beirut Lebanon; 4Department of Chemistry and Biochemistry, Lebanese University, Hadath, Lebanon. *- presenting author.Background: COX-1 and COX-2 genes encode prostaglandin-endoperoxide synthases (PTGS) isoenzymes, involved in inflammation and possibly neoplasms. The genes are expressed in the prostate gland. Both genes have several polymorphisms. Here we examine the association of rs4648298 (A-G transition) and rs20417 (G-C transversion) polymorphisms and prostatic diseases. This research was approved by the Utah Valley University IRB.Materials and Methods: DNA was extracted from a blood sample of 56 healthy volunteers, 51 volunteers with benign prostate hyperplasia (BPH), and 61 volunteers with clinical prostate cancer (PCa). Genotyping was conducted through PCR-RFLP analyses. The restriction enzymes used were BaeGI (for rs4648298) and AciI (rs20417), respectively. Alleles with the restriction site were considered recessive. The association was inferred through statistical analyses of the distribution of the genotypes (BB, Bb, and bb or AA, Aa and aa), and allele frequencies among the controls and the affected groups. A p-value of ≤0.05 was considered significant.Results: The distribution of the genotypes is in Hardy-Weinberg equilibrium for all three groups. The b allele of the COX-1 gene is extremely rare (less than 3%), and no significant association between the B or b allele or BB, Bb, and bb genotypes and prostatic disease was observed. The a allele of the COX-2 gene is more common in the BPH group (p=0.011), but not the PCa group (p= 0.472) or the combined affected group (p=0.068) compared to the control group.Conclusions: There is no association between the rs4648298 polymorphisms of the COX-1 gene and prostatic diseases. The a allele of the rs20417 polymorphisms of the COX-2 gene is associated with higher risks of BPH and possibly PCa. The small sample size, sampling from one ethnic group, and the low distribution of the b allele in the Lebanese population are limitations of this study.
Generative AI and Image Manipulation
Authors: Tayler Fearn, Caroline Torgensen, Vern Hart. Mentors: Vern Hart. Insitution: Utah Valley University. Coherent diffraction imaging (CDI) is a newly developed modality used to measure phase shifts introduced by fine-scale structures in cells. These phase shifts can be used to distinguish healthy and malignant cells, providing a diagnostic marker for early cancer detection. However, this process, in which diffracted light interferes with incident light, requires collecting scattered photons at large angles, representing high spatial frequencies and short wavelengths. The highest frequencies, needed to reconstruct small details in cells for improved image quality, occur at distances of several centimeters from the central bright fringe. As such, these signals are faint and difficult to collect experimentally. We propose the use of deep learning to synthetically extrapolate diffraction patterns at large distances, where measurements are difficult. In prototyping this method, we will present results produced by a generative adversarial network (GAN), trained using existing data of watercolor paintings to preform style transfer and image extrapolation. This will be an essential step in working towards the larger goal of developing GAN’s that can accurately extrapolate diffraction images.
Using Snapshot Camera Trap data to evaluate the extent of the “weekend effect” across varying climatic regions of the contiguous United States.
Authors: Austin Green, Gaby Karakcheyeva. Insitution: University of Utah. As the world’s human population continues to concentrate within urban areas and these landscapes continue to expand worldwide, wildlife is under pressure to adapt to novel environmental disturbances. Along urban-wildlife gradients, and especially within less developed areas, human recreation can affect wildlife behavior. These effects may be most apparent during peaks in human recreational activity. In addition, climatic conditions such as aridity and precipitation can also alter wildlife behavior. Understanding the interactions between these two pressures, human activity and climate, can help us understand how wildlife behavior will be affected as human populations grow and climate warms. In this study, we will use data from a large-scale citizen science camera trapping project to assess whether periodic increases in human recreational activity paired with arid climates will elicit behavioral responses across multiple mammal species in northern Utah, U.S.A. Specifically, we will assess whether increases in human recreational activity during the weekend affected mammalian temporal activity patterns at the community-wide and species-specific level, taking into consideration if these trends are amplified in areas that are arid and low in precipitation. I hypothesize that increased human recreational activity will alter wildlife behavior, in general, however this change in behavior will be amplified in drier, hotter areas. I predict that during the weekends human activity will increase, leading to general decreases in activity, mobility, and breeding behavior across species, and this will be amplified in hotter and less vegetated areas. However, I predict that naturally diurnal species will be more affected than nocturnal species as they attempt to avoid overlap with humans, leading to changes in species-species interactions.
Assessment of the Use of Phragmites australis as a Biomarker for Trace Metal Pollution
Authors: Aljexi Olsen, Hali Lukacs. Mentors: Eddy Cadet. Insitution: Utah Valley University. Utah Lake is the third-largest freshwater body west of the Mississippi River and serves as a vital resource for just over 600,000 Utah Valley residents through agriculture, residential and recreational purposes. In addition to its utility, Utah Lake provides a haven for biodiversity for numerous species within its wetlands. Despite its utility and importance, the lake faces two significant challenges in the form of Trace Metal (TM) pollution and the encroachment of invasive plant species known as Phragmites australis (P. australis). Despite considerable investments of time, money, and resources by various state agencies to address these concerns, their success has been limited due to the agency’s isolated efforts for these large multifaceted issues. TM, though naturally occurring in the environment, has been found to be toxic to both people and the ecosystem when at elevated levels. P. australis, is a robust and fast-growing macrophyte, possessing remarkable adaptability to and tolerance for poor soils, enabling it to rapidly outcompete native species. Due to P. australis resilience and aggressive nature, many colonies have grown around the lake regardless of soil conditions. Studies have shown that P. australis has been utilized for remediation purposes around water bodies by extracting TMs from sediment. While P. australis must be addressed, can it be used as part of the solution by identifying TM polluted areas? This study aims to discern the variety in TM absorption by P. australis in both unpolluted and polluted sites in the wetlands surrounding the hyper-eutrophic Utah Lake. We selected nine sites around Utah Lake, considering their land use and proximity to pollution sources. At each site, three replicate samples encompassing P. australis, soil, and water were collected. These samples underwent a meticulous process, including washing, weighing, grounding, sieving, acid digesting using a CEM MARS 6, and analysis for TM content within an ICP-MS. Our preliminary findings reveal that in both unpolluted and polluted sites, soil concentrations of As and Cd exceeded background levels (11.73, 1.53 in unpolluted sites, and 27.47, 6.63 in polluted sites, respectively). Notably, in select polluted sites, such as UVU, P. australis displayed a remarkable capacity to hyper-accumulate As, with a transfer factor of 167.14% compared to the lowest unpolluted sites, like Lindon, which showed a rate of about 10%. Across all sites, the accumulation of Cr was relatively consistent (ranging from 17.13 to 19.7 ppm), irrespective of biomass. The examination of TM concentrations, transfer factor rates, and TM accumulation based on biomass suggests that P. australis may serve as a valuable biomarker for identifying TM-polluted sites. This research holds significant relevance, as it could offer state agencies a swift and effective means to pinpoint TM-polluted areas. Moreover, the areas where P. australis is thriving may be leveraged for phytoremediation efforts in TM-contaminated sites, providing an environmentally friendly solution to address this pressing concern.
Using Transfection as a Annotation-free Ground Truth for Training Noninvasive Metastatic Cancer Mapping Methods
Authors: Drew Allred, Vern Hart. Mentors: Vern Hart. Insitution: Utah Valley University. Surgery remains one of the most common and effective treatments for a variety of cancers, especially those that form solid, localized tumors such as breast and colorectal cancers. During these treatments, the palpable lesion is surgically resected with the assumption that cancerous cells have metastasized to nearby tissues. As such, surgeons will excise a tissue margin surrounding the tumor in hopes of removing any additional cancer, thus preventing further spread of the disease. However, this process is time-consuming and requires specialized expertise from a trained pathologist to verify that all cancer has been removed. Furthermore, if the pathology report indicates that not all cancerous cells have been extracted, additional follow-up visits and surgeries are typically required. In recent years a number of non-invasive technologies have been developed which seek to map cancerous cells in whole tissues. Training and validating these methods still requires a reliable ground truth, typically provided by an annotated pathology report. We propose a simpler model in which two cell species were co-cultured to provide a heterogeneous training sample. One of these species (PANC-1) was transfected with a vector coding for a fluorescent marker to represent healthy tissue, while the other species (COS-7) remained untreated, representing cancerous cells. An experiment was then conducted using a coherent diffraction imaging (CDI) system, in which laser light incident on the cells was used to quantify phase shifts produced by each cell type. Fluorescent microscopy was then used to create a map of transfected and non-transfected cells for comparison. Results will be presented demonstrating a correlation between the phase shifts produced by the two cell types and the corresponding fluorescent images, potentially facilitating optical cell identification without the need for pathology.
Face it! How reliable is emotional facial expression coding within and across raters?
Authors: Anna Norman, Chloe Houghton, Macall Walker, Audrey Saunders. Mentors: Tyson Harmon. Insitution: Brigham Young University. Face it! How reliable is emotional facial expression coding within and across raters? Background Emotion, described as “physiological forces, located within individuals, that bolster our sense of uniqueness....” (Katriel, 2015, p. 57) is a critical aspect of day-to-day communication. For people with acquired language disorders post-stroke (i.e., aphasia), this interaction is particularly important due to relatively spared emotional processing, which has the potential to either facilitate or interfere with language processing (see e.g., Harmon et al., 2022; Ramsberger, 1996). The present study is part of a larger project, which seeks to determine whether people with aphasia exhibit more emotional facial expressions during personal narrative discourse than adults who do not have aphasia and whether these expressions are more emotionally arousing. The present study specifically seeks to investigate the reliability of facial coding by comparing average frequency and intensity of emotional facial expressions both within and across undergraduate student coders. Methods In order to quantify emotional facial expression frequency and intensity, undergraduate research assistants are trained to code facial expressions using a modified FACES protocol (Kring and Sloan, 2007). The modified protocol will be used to code emotional facial expressions of video footage that was obtained from participants while they told personal narratives (e.g., talking about an illness they experienced or an important life event). First, research assistants identify the baseline facial expression for each participant. Next, research assistants code transitions from a neutral expression to an emotional facial expression for valence (positive/negative) and intensity. Intensity ratings are scaled from 1 to 4 depending on how many units of the face are involved within the corresponding facial expression. Using this protocol, research assistants will begin facial coding after they are trained and demonstrate mastery by attaining 80% agreement with a master code. Upon completing initial data coding, research assistants will be assigned to recode 10% of previously completed video samples as well as 10% of samples that were previously coded by other coders. This secondary coding will be used to measure intra- and inter-rater reliability across dependent variables: frequency of emotional facial expressions, intensity of positive facial expressions, and intensity of negative facial expressions. Average frequency of emotional facial expressions will be calculated as the number of facial expressions produced per minute within a given sample. Intensity of positive and negative facial expressions will be calculated as the mean intensity within each valence respectively. The average frequency and intensity of initial and reliability codes will then be compared using Pearson’s correlation coefficient. Anticipated Results We anticipate that intra- and inter-rater reliability will be above 0.8. Through a strict training process, research assistants will calibrate their coding to achieve 80% agreement with the master code. We anticipate this training process to produce effective intra- and inter-rater reliability. Findings will be important for determining the reliability of facial coding procedures and trustworthiness of data for answering questions related to the longer-term project. References Harmon, T.G., Jacks, A., Haley, K. L., & Bailliard, A. (2020). How responsiveness from a communication partner affects story retell in aphasia: Quantitative and qualitative findings. American Journal of Speech-Language Pathology, 29(1), 142-156. https://doi.org/10.1044/2019_AJSLP-19-0091 Harmon, T.G., Nielsen, C., Loveridge, C., Williams, C. (2022). Effects of positive and negative emotion on picture naming for people with mild to moderate aphasia: A prelimariny investigation. Journal of Speech, Language, and Hearing Research, 64(3), 1025-1043. https://doi.org/10.1044/2021_JSLHR-21-00190 Katriel, T. (2015). Exploring emotion discourse. In H. Flam & J. Kleres (eds.), Methods of exploring emotions (1st ed., pp.57-66). Taylor & Francis Group. Kring, A.M., & Sloan, D.M. (2007). The facial expression coding system (FACES): Development, validation, and utility. Psychological Assessment, 19(2), 210-224. https://doi.org/10/1037/1040-3590/19.2.120
Estimating the Prevalence of Images in Biology Literature that are Problematic for People with a Color-Vision Deficiency
Authors: Harlan Stevens, Arwen Oakley. Mentors: Stephen Piccolo. Insitution: Brigham Young University. The number of scientific journal articles published per year now exceeds one million. To help maximize the impact of these articles, researchers must ensure that images in the articles are accessible to people with color-vision deficiencies (CVD). Up to 8% of males and 0.5% of females experience at least one form of color-vision deficiency, thus making it difficult for these individuals to discern patterns in images that use particular color combinations. We sought to shed light on this problem by estimating how often published images use color combinations that are unfriendly to people with a CVD. Examining 6,000 images published in biology-oriented research articles published in the eLife journal between 2012 and 2022, we identified images with potentially problematic color combinations. Using quantitative metrics and manual review, we estimate that 13% of these articles would be difficult for people with moderate-to-severe deuteranopia to interpret. We used a convolutional neural network to automate the ability to label images as being problematic for people with moderate-to-severe deuteranopia. The machine learning model successfully classified images in a testing dataset with an auROC of 91.3%. Based on these results, we created a web application that allows users to upload images and view estimates about whether the images are CVD-friendly. Such efforts are critical to ensuring that papers published in the biology literature are interpretable to diverse audiences.
Legal Representation and Fairness in the Provo City Justice Court
Authors: Macaulay Gould, Chelsea Romney, Andrew Moss. Mentors: Chelsea Romney. Insitution: Brigham Young University. Attorneys play an important role in protecting the rights of the defendant and maintaining fair courtroom outcomes. This project compared self-reported fairness between court customers with and without an attorney representing their case. 372 Provo City Justice Court customers reported their perceived fairness in a 10-item survey, validated by national court assessment tools. Statistical analysis was performed, and a linear regression model revealed no association between legal representation and fairness. This indicates that both groups reported the same level of fairness, regardless of attorney representation. While evidence suggests that court customers with an attorney may receive better outcomes and less jail time, this was not reflected in court customers’ perceived fairness. We suggest a court navigator be available to court customers, so they can better understand how fairly they are being treated.
The Hyrum Smith Papers Project: Uncovering 19th Century History
Authors: Liberty Rausch. Mentors: Kenneth L Alford. Insitution: Brigham Young University. The Hyrum Smith Papers project, patterned after the Joseph Smith Papers, is a scholarly initiative at Brigham Young University aimed at collecting, transcribing, analyzing, and publishing selected extant documents associated with Hyrum Smith, the older brother of Joseph Smith, Jr.—key figures in the early history of The Church of Jesus Christ of Latter-day Saints. With a focus on illuminating the often underappreciated contributions of Hyrum Smith, this project examines a wide range of historical documents. These include, but are not limited to, personal correspondence, journals, sermons, certificates, legal documents, land records, ecclesiastical and administrative documents, and others. The purpose is to contribute to a deeper understanding of Hyrum’s role, leadership, and influence within the context of the American religious, social, and political climate of the early 19th century. The goal of this research is to publish a volume with transcriptions, narratives, photographs, and illustrations associated with Hyrum Smith’s life. This UCUR oral presentation will provide an overview of how relevant documents are identified and incorporated into our corpus.
Detecting Fake People in the United States Census
Authors: Allen Otterstrom. Mentors: Joe Price. Insitution: Brigham Young University. Data quality is a key input in efforts to link individuals across census records. We examine the extreme version of low data quality by identifying census US enumerators in the US who fabricated entire families. We provide clear evidence of fake people included in the census in Homestead, Pennsylvania. We use the features of this case study to identify other places where there seem to be fake people. Our automated approach identifies census sheets that have much lower match rates to other census records that would be expected, given the characteristics of the people recorded on each sheet.
Counsellor Knockolds and Captain Swing: Urban-Rural Relations and Social Protest in Early 19th-Century East Anglia
Authors: Hyrum Veach. Mentors: Amy Harris. Insitution: Brigham Young University. The agricultural laborers’ riots that occurred in England from 1830 to 1831, commonly called the Swing Riots, have been well-studied over the past fifty years. In recent years, historians have sought to better understand individual protests were rooted in local causes and social networks, however, there are still gaps in historians’ understanding of how these events related to urban protests going on around the same time. Through an in-depth exploration into the Norwich weavers’ riots in 1829 and the fires in Swanton Abbott, Norfolk in January 1831 this research attempts to show how the changing relationship between urban and rural communities could link urban and rural protest movements in multifaceted ways. Special attention is paid to the lives of some of these protests’ key participants (Richard Knockolds and the Davison brothers), including their backgrounds, motivations, and the ways their actions were memorialized both in the city and the country. When these two protests are situated in the context of urban-rural relations, it becomes clear that they were part of an active renegotiation of the relationship between city and country brought on because the pressures of industrialization were pushing the two together in ways that many found threatening. Each of the people involved had a different vision for what this relationship should look like, as well as a vested interest in ensuring this vision prevailed. By foregrounding how these participants approached the boundaries between urban and rural worlds, this research emphasizes the ways this boundary was a crucial point of contention in early industrial Britain.
Perceptions of National Identity Among Brazilian Americans Living in Northern Utah
Authors: Elisabeth Morris. Mentors: Desirée Oliveira. Insitution: Brigham Young University. The purpose of this study is to better understand what it means to be an American by examining perceptions of national identity through the lens of Brazilian Americans living in Northern Utah. With this purpose in mind, we hope to add to the discussion of national identity during a time when the United States' title as a “melting pot of nations'' is called into question. The study focuses on the question: How do Brazilian Americans living in Northern Utah perceive their own national identity? Additionally, it seeks to answer the following subquestions: Does a pluralistic national identity exist among Brazilian Americans in Northern Utah?; If a pluralistic national identity exists among Brazilian Americans in Northern Utah, do the two identities coexist, or is there a synthesis of the identities and what does that look like?; How do they perceive American national identity?; How is American National identity influenced by Brazilian Americans in the United States? Working with local Brazilian businesses, cultural groups, families, and individuals, we collected data through a variety of ethnographic methods including participant observation, semi-structured interviews, mapping, sonic recordings, oral histories, photo, video, and media usage. We then used thematic qualitative data analysis methods, finding that Brazilian Americans in Northern Utah see their identities as pluralistic as well as that Brazilian and American identities coexist, operating in different spaces. The results show how American national identity is fluid and complex, existing as a companion to other identities, demonstrating how “Brazilianess” contributes to “Americanness” by creating more empathy, understanding, and union in the United States.
Art Beyond the Bars: The Value of Arts Programming in Correctional Settings
Authors: Brenda Payan Medina. Mentors: Andy Eisen. Insitution: University of Utah. Between the years of 1988 and 2016, there has been a staggering figure of individuals, in the hundreds of thousands, that have been incarcerated in what has been recognized as a mass incarceration phenomenon intended to make our nation safer using a “tough-on-crime” approach. As of 2020, the number of people incarcerated is slated to be around two million, and the prison population continues to grow. Along with this stunning growth in our carceral systems has also come the realization that without investment into incarcerated individuals, prison systems will continue to grow without serving any meaningful purpose to both incarcerated people and their communities once incarcerated individuals have served their terms. As a result, educational programming has been implemented in multiple prisons across the country, and following suit is the implementation of visual, theater, and writing-based arts programs. While the original intention of many arts education programs in carceral environments is to serve as a form of rehabilitation, therapy, and assimilation back into society for those that are incarcerated, many incarcerated or formerly-incarcerated artists perceive the arts opportunities offered to be much more valuable and fulfilling than a means of emotional regulation and personal growth; some see it as a way of connection or re-connection with their families, friends, and communities, others see it as a potential career path and redirection of the trajectory of their lives, and some see it as a reclamation of their identities and voices beyond their criminal history.
Changes in receptor sensitivity in the ventral regimental area after morphine conditioning
Authors: Calista Greenwood, Ciera Sanders, Pacen Williams, Kaleb Gardner, Caylor Hafen, Hillary Wadsworth. Mentors: Jordan Yorgason. Insitution: Brigham Young University. Dopamine circuit function in the nucleus accumbens (NAc) and ventral tegmental area (VTA) is implicated in the reinforcing effects of drugs of abuse including opioids. Opioid receptor desensitization occurs during acute and prolonged exposure to opioids such as morphine, which may have long lasting effects on dopamine circuit function. Fast scan cyclic voltammetry (FSCV) was performed in mice that have undergone morphine behavioral conditioning. In NAc brain slices, morphine has no apparent direct effects on dopamine release. In contrast, morphine bath application increases VTA dopamine release, which is reversed by naloxone. Interestingly, morphine induced increases in VTA dopamine release were greater in morphine vs saline conditioned mice, supporting a model of circuit sensitization. Surprisingly, blocking voltage gated potassium channels resulted in a switch in morphine effects, where morphine reduced VTA dopamine release. Morphine treated mice had reduced sensitivity to morphine effects on dopamine release in the presence of potassium channel blockers, suggesting that potassium channels are underlying the increases in sensitivity observed in morphine conditioned mice. Experimental protocols were approved by the Brigham Young University Institutional Animal Care and Use Committee according to the National Institutes of Health Guide for the care and use of laboratory animals. Research was funded by Brigham Young University. There are no conflicts of interests to disclose.
Broken Heart Syndrome: Understanding the Spousal Correlation in Mortality Using Kin-Linked Data
Authors: Sven Wilson, Joseph Price, Hannah Hammond, Katharine Wilson. Mentors: Joe Price. Insitution: Brigham Young University. Research suggests that environmental and behavioral risk factors often shared by spouses will result in similar spousal lifespans. This is seen most powerfully in the well-documented tendency for the hazard of mortality to rise immediately after spousal loss, thereby causing a greater concordance in spousal lifespans. This is sometimes referred to as "broken heart syndrome," and a widowhood effect on mortality has been observed in multiple large population studies in many countries. We employ a new dataset from the United States containing over 2.8 million couples drawn from the 1940 census who were born between 1880 and 1920 who are linked to US Census Schedules through 1940 and to the wiki-like genealogical data source Family Search. To account for the presence of assortative mating, we employ a strategy where the lifespan of the spouse's siblings is used as an instrumental variable for spousal lifespan. We find only a small amount of assortative mating on the basis of lifespan, but considerable sorting based on education and income. Our simple IV model finds a statistically significant causal relationship between the death of both husbands and wives on the lifespan of their respective spouses, and those effects are roughly twice as big as the OLS estimates. An additional year of life for the spouse adds .11 years to the husband’s lifespan; and .157 years to the wife. The larger effect on women’s lifespan is in opposition to most of the literature on the widowhood effect.
Social Connection in Shared Experiences
Authors: Lizzie Stewart, Hayden Underwood, Dallas Goolsby, Spencer Sears. Mentors: Camilla Hodge. Insitution: Brigham Young University. Social connection is critical to understanding how individuals interact with one another and form social bonds in groups. Our research evaluates the effects on social connection based on the Ecology of Family Experiences framework, which considers the interplay between three domains: family, activity, and time. We believe that the EFE is a transferable framework that will have important social implications for understanding interpersonal relationships and designing experiences intended to increase social connection. In this study, we examine the relationship between social connection and two variables: 1) social interaction, or the behavior between two or more people crossing paths. Social interaction considers joint or parallel interaction styles between people; 2) self-disclosure, or interaction where one intends to willfully and deliberately divulge something personal to another. We hypothesize that social interaction and self-disclosure influence social connections outside the family context. We seek to shed light on the mechanisms that shape and alter the quality and depth of interpersonal connection. In our experiment, we used a 2x2 quasi-experimental design. Participants were assigned to one of four conditions varying in self-disclosure (high vs. low) and social interaction (joint vs. parallel). Self-disclosure questions asked participants to answer prescribed questions, including highly personalized questions (high disclosure) and non-personalized information (low disclosure). Participants either interacted with a partner (joint) or wrote responses next to a partner without verbal communication (parallel). Social connection was measured using the Inclusion of Others and Self Scale. The sample consisted of 148 university students. The average participant was a white, unmarried, 20-year-old from a middle- to high-class economic background. Data analysis was conducted using mixed model techniques that took into account the unique dyadic relationship of each pairing. Results suggested a significant interaction between self-disclosure and social interaction (t = 2.354, p < 0.05). With high self-disclosure and joint activity having a mean of 4.54, high self-disclosure and parallel activity having a mean of 2.33, low self-disclosure and joint activity having a mean of 3.47, and low disclosure parallel activity having a mean of 2.01. These findings highlight the importance of self-disclosure and social interaction styles in influencing social connection, extending the applicability of the EFE framework beyond the family unit.
Implicit Bias: Impacts of a Transformative DEIB Business Course
Authors: Ramon Zabriskie, Erica Miller, Felicia Korth, Anna Taylor. Mentors: Ramon Zabriskie. Insitution: Brigham Young University. Implicit bias occurs automatically and unintentionally based on a person’s lifetime experience and cultural history (National Institutes of Health, 2022; Handelsman & Sakraney, 2015). In this study, implicit bias is evaluated through the lens of a transformative diversity, equity, inclusion, and belonging business course. DEIB originated in the 1960s in response to equal employment and affirmative action laws (Sarrett, 2022). Studies show that Millennials and Gen Z generations are the most diverse populations ever in the United States (Stamps & Foley, 2023). Benefits of DEIB include the creation of a more unified, diverse, and successful workplace, less biases in hiring, team development, promotions, and who companies do business with (El-Amin, 2022). This study’s theoretical framework is based on the transformative learning theory which seeks to understand and promote human development through learning. Transformation is more than "knowing more" through time; when a learner is transformed by education they undergo a shift in perspective, and after that shift, they cannot go back to see the world the way they once did, at least in some small way (Wichita State University). The class was designed with experiential learning approaches and introduces a variety of DEIB concepts such as privilege, unconscious bias, assumptions, and intersectionality. Students interacted with a variety of experiential components such as DEIB events, panels, and interviews which addressed various minority groups. At the beginning of the DEIB course, students completed an IAT test focused on racial bias. The IAT test is known as the Implicit Association Test that uses positive and negative connotative words in association with pictures of minority groups to measure automatic reactions targeting an individual's level of implicit bias towards one minority group versus another. After students completed the racial IAT test, scores were recorded representing the level of implicit racial bias students held towards white people vs. black people. At the conclusion of the 14-week-long course, students completed the same IAT test on racial bias. Scores were recorded once again, comparative with previous IAT scores, to evaluate whether the amount of racial implicit bias had changed as a result of participating in the DEIB course and its curriculum. Data was then analyzed visually comparing the means from the pre to post test results. The data was analyzed using this method because the sample size was not large enough to return what the researchers considered to be reliable results. More data is available for this study, but has not been cleaned and matched, this process is currently taking place. Once the data is available, the researchers will use paired sample T-tests to conduct a full analysis. Additionally, descriptive analysis will be represented in the form of histograms of pre and post test scores observing the progression towards less implicit bias. The mean for the pre-test was .78 (sdv=1.34, n=171) and the post-test was .63 (std=1.38, n=144). Our sample size was 181 participants with 25 that chose not to answer. Demographics of participants consisted of 66% Caucasian, 3% Hispanic, 2% Asian, 2% Native Hawaiian, 1% other, and 26% who chose not to respond. The average age of participants was 21. Gender of participants consisted of 121 females and 34 males. Visual examinations of the means suggest there was migration toward 0, which would represent little to no bias and the class was making a difference in participants’ implicit bias scores. This study underscores the utility of DEIB instruction in promoting changes in bias. The impact of changes in implicit bias through this learning coupled with DEIB principles in a transformative way will greatly influence the workforce for generations to come.
A gamified app that educates autistic population on social media safety
Authors: Changxi Xing, Kirsten Chapman. Mentors: Xinru Page. Insitution: Brigham Young University. Prior work from our lab has demonstrated that social media usage can be highly beneficial for autistic young adults. Simultaneously though, it can lead to physical or social harms. In order to better support the autistic community on social media, it is important to provide educational content on social media safety. As such, the BYU Social Technology and Privacy Lab has developed, and is currently validating, educational slides, quizzes, and practices modules.My work focuses on creating a gamified education app that will host these materials. This app will utilize effective gameplay strategies in order to motivate autistic users to meaningfully consume the materials. This app will be designed to cater to the needs of individuals in this community.The project started with a thorough literature search in September. I reviewed prior work on gameplay design and educational psychology of both neurodiverse and non-neurodiverse populations (n=12). We will be engaging in participatory design sessions that allow participants to contribute their own ideas and designs. These designs will be pieced together to form a preliminary prototype of the app. Based on these findings, a mobile application will be built and deployed in the autistic community. Statistics on user performance and the amounts of time they spend on the materials will be collected. These statistics will be analyzed and compared with the non-gamified version of the app. We will also collect qualitative data on participant attitudes towards the app.
Cell Death, Inflammation, and Extracellular Vpr in the R77Q Mutation of Vpr in HIV-1
Authors: Amanda Carlson. Mentors: Bradford Berges. Insitution: Brigham Young University. Human Immunodeficiency Virus (HIV) causes AIDS and is one of the most studied viruses in history. HIV is a retrovirus that has two copies of a single stranded RNA genome. While there is in-depth understanding of the virus and its pathogenesis, no completely effective treatment or vaccine exists. One potential target for therapeutic treatment of HIV is Viral Protein R (Vpr). Vpr is a multi-functional accessory protein encoded by the HIV genome. While HIV is a quickly mutating virus, the vpr gene remains relatively conserved. Mutations in this protein dramatically impact the rate of AIDS progression compared to the wild type (WT) version of Vpr. The Vpr polymorphism R77Q is associated with the Long Term Non Progressor (LTNP) phenotype. Regular AIDS onset is 5-7 years for WT virus and 10 or more years for R77Q. These differences in AIDS progression have been observed in vivo by following people with HIV over time. We have successfully shown that R77Q activates G2 cell cycle arrest more efficiently than WT followed by apoptosis, a death mechanism with less inflammation compared to necrosis. While the molecular mechanism of Vpr-induced apoptosis is known, it is not yet determined why point mutations in Vpr are changing levels of apoptosis. With further experimentation, we have shown that R77Q has decreased expression of pro-inflammatory cytokines compared to WT virus, which may explain why it is associated with the LTNP phenotype. The functions of Vpr come from binding and modifying cellular proteins and enzymes. The focus of our research is to determine what molecular interactions change between Vpr mutants to better understand the shifts in apoptotic levels. Vpr can be found intracellularly in the nucleus, cytoplasm, and mitochondria and extracellularly in secreted proteins and within virions. We will determine Vpr concentration in these various locations for both WT Vpr and the R77Q mutant, starting by measuring extracellular Vpr. To quantify virion-associated Vpr, we have designed a research plan. We will use WT-Vpr plasmids tagged by GFP to create GFP-tagged plasmids with either WT, R77Q or null mutations using site-directed mutagenesis. We will use Sanger sequencing for confirmation of the proper Vpr mutations tagged by GFP. We will then digest the plasmid DNA, leaving only the Vpr-GFP component and use PCR to amplify the sequences. We will transfect null virus plasmid (NL4-3) and Vpr-GFP plasmids into HEK cells to package the null virus and Vpr-GFP plasmids together to create active HIV particles. Using these virus particles, we will infect Hut-78 cells for a short time to allow the virion to enter the cells. We will then measure GFP fluorescence via flow cytometry, allowing us to quantify virion Vpr. This will be run alongside a mock infection as a control. We hypothesize that differences in virion Vpr concentrations exist among Vpr mutants. Through these experiments, we aim to discover more about the role Vpr plays in cell death by apoptosis and contribute to the existing literature exploring the importance of Vpr in HIV-1.
How English verbs are borrowed into Jordanian Arabic: morphological integration and social perception
Authors: Hannah Smith. Mentors: Jeff Parker. Insitution: Brigham Young University. The Arabic language uses a rich system of patterns called verb forms to create verbs with related meanings from roots made of consonants. For example, the root k-t-b, in form I, kataba, means ‘to write.’ When it appears in form II as kattaba, it means ‘to make someone write.’ In form III, kaataba, it means ‘to exchange letters,’ ‘to correspond’ (Wehr, 2019). There are ten commonly used verb forms, although not every root is used in every form. As Arabic has been exposed to English and speakers borrow verbs from English into their Arabic, they make choices about how and whether to integrate these foreign words into the verb forms. For example, the verb ‘to block (on social media),’ with the derived root b-l-k, is used in form II, ballaka, ‘to block.’ Other borrowed verbs, however, don’t get integrated in this way. Instead, they are used as a noun with a native Arabic verb, usually ‘amila, ‘to do.’ For example, English ‘to delete’ becomes ‘amila daliit, literally ‘to do a delete.’ This study aims to understand what factors influence when and how completely borrowings from English like these are integrated into the verb forms in Jordanian Arabic (JA) by interviewing university students in Amman, Jordan. The interviews are primarily focused on four forms in which borrowings in JA frequently appear (Salem, 2015). Initial data from a group of eight participants shows a general acceptance for the borrowings in their base forms, with much more variation in speakers’ intuitions regarding their usage in other forms. For example, all eight participants perceive ‘to block,’ ballaka, as a completely acceptable word used by most people. However, only two participants felt the same way about its counterpart form, taballaka, ‘to be blocked,’ whereas two other participants perceived it as something no one would ever use. Furthermore, some participants perceive verbs that rely on ‘to do,’ such as ‘to delete,’ to be in the beginning stages of integration, with three of eight interviewees stating that some of these verbs actually are acceptable in verb form II. Thus far, the perceptions of all the borrowings seem to indicate that speakers believe that integration of borrowed verbs is a gradual process. Furthermore, in addition to other factors, the extent to which the verbs are integrated in JA seems to be affected in large part by cultural perceptions of how foreign the verbs are, a factor that has not been noted in previous studies on the subject.
First Measurements of the Longitudinal Shear Modulus of Corn Stalk Tissues
Authors: Braxton Fjeldsted, Joseph Carter, Grant Ogilvie, Josh Hoffman. Mentors: Douglas Cook. Insitution: Brigham Young University. Finding ways to improve crop durability through 3D modeling has tremendous potential to help save plants, time, and resources. Currently, there are many important material properties of maize stalks that have not yet been measured, which presents challenges in creating accurate 3D models. Through sensitivity analysis, it was determined that one of the most critical unknown material properties of maize stalks for creating accurate models is the transverse shear modulus. In this research, we created a testing procedure to determine the shear modulus as accurately as possible. Each sample was put in a torsion test to determine the relationship between the torsion torque and the torsion angle. Both fresh and dry samples were tested in addition to samples with and without the pith. Our team implemented methods to minimize inaccuracies from slipping, cracking, and other imperfections in all elements of the stalks. The transverse shear modulus that we have determined will help to more accurately model maize stalks, thereby making future tests by modeling more efficient and working to provide a path towards improved global maize harvests.
Investigating Knot Invariants Arising from Petal Diagram
Authors: Adam Call, Parker Myers. Mentors: Mark Hughes. Insitution: Brigham Young University. Petal projections are defined as a special class of knot projection with a single multi-crossing, which causes the formation of loops entering and exiting the crossing. The relative height of the strands as they pass through the multi-crossing is always an odd-length permutation. Recent research has described the complete set of moves which is sufficient to relate any two permutations that describe the same knot. In this talk, we will discuss potential novel knot invariants arising from isotopy of knots and their petal projections.
Recommendations for Adapting Religious Materials for People with Aphasia
Authors: Allison Dahl. Mentors: Dallin Bailey. Insitution: Brigham Young University. Using members of The Church of Jesus Christ of Latter-day Saints as a case study, this research explores text reformatting that may address the unmet needs of religious people with aphasia. Aphasia is a language disability that sometimes occurs after a stroke or traumatic brain injury. It can affect both expressive and receptive language, including reading ability. Several studies have already explored what text adaptations are generally preferred by or aid comprehension in this group. However, the unique regard of sacred text may elicit different needs and preferences for those experiencing aphasia. For example, although text adaptation for people with aphasia often includes text simplification, some may find inherent spiritual value in the original wording of scriptural text. Therefore, in this study, other adaptation options are explored, such as font changes and verse spacing. Passages from texts considered holy in the Church of Jesus Christ, such as the King James Bible and the Book of Mormon, have been reformatted in potentially helpful ways. Latter-day Saints with aphasia are being recruited to give feedback on these samples. They will indicate their formatting preferences on a visual scale, and their comments and feedback will also be coded qualitatively. This research will provide guidelines on what text adaptations are most appropriate and helpful for religious texts. Although the samples are specifically geared towards members of the Church of Jesus Christ of Latter-day Saints, the design principles may prove useful for texts used in other faiths as well.
Building the Groundwork for the Equitable Integration of Wireless Power Technology
Authors: Josie Allred. Mentors: John Salmon. Insitution: Brigham Young University. From the weekly grocery run to the daily commute to work or school, transportation plays a central role in meeting the basic needs of nearly every American family. Unfortunately, not everyone has equal access to safe, convenient, and efficient transportation. When not carefully planned and implemented, the advancement of transportation infrastructure and technology often favors high income communities. For example, in many areas, shared electric scooters and bicycles have been made more widely available in higher income neighborhoods, leaving lower-income communities with limited access to these micro-mobility options. The result of these and other similar developments is increased economic disparity and barriers to opportunity. One such transportation advancement for which careful implementation is vital is Wireless Power Transfer (WPT) technology for electric vehicles (EVs). WPT technology offers the potential for EVs to charge while in motion on the roads, thereby accelerating the adoption of EVs, and building a cleaner tomorrow. Through this research, we seek to contribute to a future of equitable integration of WPT technology into roadways across America. Because the demographics of Indianapolis closely resemble the US overall, a simulation was run with drivers in the city, using sample data from the US and Indianapolis. The simulation was then used to determine potential locations in which WPT technology could be effectively implemented. Informed by this and other research, WPT technology can be integrated in an intentional manner ensuring equitable access for people of any socioeconomic status.
Maria Firmina dos Reis: A Voice from the Past that Echoes in the Present
Authors: Joshua Cook Wright. Mentors: Jordan Jones. Insitution: Brigham Young University. Fifty years ago, Brazilian scholar José de Nascimento Morais Filho rediscovered Maria Firmina dos Reis (1825–1917), Brazil’s first female—and first black female—novelist. Morais published a biography about Reis, including in it as many of her works as he could find. During her lifetime, Reis published the novel, Úrusula, musical compositions, short stories, and poems, though it was only through Morais’ biography that some of these works were reintroduced to the general public. Reis used writing to challenge the flaws she saw in society. The most glaring of these was slavery, with which she had first-hand experience, her Afro-Brazilian mother and African grandmother having been enslaved. Because of this, she has gained notoriety as not only the first female novelist in Brazil, but as an ardent abolitionist. However, the people living in her hometown of Guimarães, Maranhão, knew her—and continue to remember her—quite differently. To them, she was a teacher, whose life’s work was to educate and elevate as many lives as she could. She founded a school that taught both boys and girls and refused to use corporal punishment. Using information gathered on a summer research trip to Maranhão, Brazil, including a visit to the archive where Reis’ works were rediscovered and a visit to Guimarães, I will compare the prevailing understanding of Maria Firmina dos Reis as an abolitionist writer with the powerful and living legacy that I experienced first hand in Guimarães. I conclude by discussing the impact of viewing Maria Firmina dos Reis as both an abolitionist and a teacher, how these views complement each other, and how seeing both sides of her story can help us better understand how activism can manifest in many different ways.
Leveraging Deep Reinforcement Learning and Braid Representations to Explore Knot Theory
Authors: Dylan Skinner. Mentors: Mark Hughes. Insitution: Brigham Young University. Deep reinforcement learning (DRL) continues to demonstrate remarkable efficacy in pattern recognition and problem-solving, particularly in domains where human intuition falls short. In the realm of knot theory, an important challenge revolves around constructing minimal-genus slice surfaces for knots of varying complexity. In this presentation, I will outline a novel approach that leverages the power of DRL to tackle this difficult problem. Using braid representations of knots, we train reinforcement learning agents to construct minimal genus slice surfaces by finding sequences of braid transformations that are optimal with respect to a given objective function. This provides a template for attacking other computationally difficult problems in topology and pure mathematics using reinforcement learning.
Using reinforcement learning to study problems in braiding
Authors: Abraham Harris, Juliana Corbridge. Mentors: Mark Hughes. Insitution: Brigham Young University. Braid closures provide a way to study knots and links in 3-space via group-theoretic techniques. Several important open problems in low-dimensional topology can be reformulated as problems in combinatorial group theory via a particular braid invariant called the band rank. In this talk we will describe the band rank and techniques for computing this quantity which draw on tools from reinforcement learning.
Using reinforcement learning to model topoisomerase action during cell division
Authors: Samantha Richardson, Sam Simmons. Mentors: Mark Hughes. Insitution: Brigham Young University. During cellular mitosis long DNA molecules are first split and then separated with one copy being transferred to each of the daughter cells. A class of enzymes known as topoisomerases assist in the separation of the two strands of DNA, though the precise mechanism by which they work is unknown. In this talk we will discuss attempts to model topoisomerase action using techniques from reinforcement learning.
Guidelines for Manufacturing Compliant Mechanisms using 3D Printing
Authors: Austin Martel, Bethany Parkinson, Spencer Magleby. Mentors: Spencer Magleby. Insitution: Brigham Young University. Compliant mechanisms are gaining popularity for use in engineering systems due to their low cost, manufacturability, and predictability. These monolithic structures can accomplish the same function as rigid multi-body mechanisms and can improve the motion and performance of the mechanism. Because they are monolithic, 3D printing has proven to be a simple and favorable method of bringing compliant mechanisms from design to reality. However, fabricating these mechanisms using conventional approaches of 3D printing can negatively affect their mechanical properties. To combat these adverse effects, we need to identify printing parameters that affect the mechanism’s material properties. Then, by adjusting the values of these parameters in the 3D printer’s slicer software we can minimize these adverse effects and create a better-suited set of guidelines to print compliant mechanisms.In this study, multiple compliant mechanisms were designed and tested with different printer settings. The testing started with creating mechanisms and their force-deflection curves. The standard designs of each mechanism were then updated and printed using different parameters from the slicer software. Parameters such as orientation, infill, wall thickness, nozzle path, and ironing were considered and quantified. After printing, the mechanisms were tested on an INSTRON machine to get the experimental force-deflection curves. We iterated upon each design until there was less than a 5% error between the experimental and theoretical data. With more knowledge of the effects of 3D-printing parameters, we can develop a set of guidelines for manufacturing more predictable compliant mechanisms. These guidelines can be applied to any compliant mechanism design for industrial or personal 3D printing.
Neural Gene Expression: An Insight into Opioid Addiction
Authors: Addison Smartt, Timothy Smartt. Mentors: Jeff Edwards. Insitution: Brigham Young University. Since the 1990's, the United States has experienced a crisis of opioid addiction and overdose. The effects of this are found close to home – with Utah being one of 22 states with an overdose rate higher than the national average. The effects of opioids on the ventral tegmental area (VTA), also known as the reward center of the brain, are a major contributor to opioid dependence. Drug dependence is created by molecular and cellular changes in this region of the brain. Therefore, we will examine changes in gene expression in the reward center in response to chronic morphine exposure. To do this, we will employ quantitative PCR on the VTA by first isolating mRNA, then reverse transcribing it into a cDNA library. Next, we created primer pairs for 26 different gene targets that were selected for their participation in the reward pathway. These targets include opioid receptors, glutamate receptors, cannabinoid receptors, and transcriptional regulators. Early results have identified mu and kappa opiate receptor expression downregulation after morphine exposure. Collectively, our data will provide understanding into how morphine exposure changes the expression of important gene targets in the VTA, providing insight into the causes, symptoms, and treatment options for opioid use disorder.
Protein-Protein Binding Between the Beta Cell Transcription Factor Nkx6.1 and PACS1 in Rat Beta Cells.
Authors: Spencer Paulsen. Mentors: Jeffery Tessem. Insitution: Brigham Young University. Today approximately 537 million adults are living with diabetes. This figure is expected to rise to about 640 million by the year 2030. Metabolic stress is known to drive the development of the disease. The pancreatic β-cell which is responsible for producing and secreting insulin in response to elevated blood glucose concentrations is particularly sensitive to metabolic stressors. Therefore, understanding the molecular character of β-cells is important to curing diabetes. Nkx6.1 is an important β-cell transcription factor critical for proper β-cell development and function. Our lab has shown a potential interaction between Nkx6.1 and PACS1 in β-cells. PACS1 is associated with the Trans-Golgi network and is involved in protein maturation by sending newly synthesized proteins to their intended target inside or outside the cell. We know that insulin is synthesized in the ER and sent to the Golgi for vesicle packaging. We hypothesized that PACS1 helps sort insulin in the Trans-Golgi network, and that interaction with the β-cell transcription factor Nkx6.1 is essential for this process. Therefore, the study of the interaction between Nkx6.1 and PACS1 may provide a greater understanding of diabetes and insulin secretion in β-cells. Here, we present the results of our investigation of the link between Nkx6.1, PACS1, and the Golgi apparatus. We present data validating the Nkx6.1-PACS1 interaction, the cellular location of the interaction, and the effect of changing glucose concentration on this interaction. These results will help deepen our understanding of how the Nkx6.1-PACS1 interaction works to ensure proper β-cell function.
The effects of access to healthcare in varying levels of urbanization on mortality.
Authors: Jaren Wilson. Mentors: Joshua Price. Insitution: Southern Utah University. Rural health has been an area of study for population for years as over 46 million Americans live in rural communities as of 2021. Access to healthcare has been suggested as a major disparity of this population. This study examines how the access of healthcare of varying degrees of urbanization impact mortality outcomes, using the number of physicians per 100,000 people as a proxy for the access to health care. Using a dataset over 3,000 counties in the United States over the span of four years we assess the disparities in healthcare access between different geographic locations.The study implores the use of a multivariable regression model controls for time, level of urbanization, physicians per 100,000 people, time, county fixed effects, and other factors regresses the number of mortalities. The goals of this study are to demonstrate the disparities in healthcare access in different geographic locations across the United States.
Intact endothelial cell autophagy attenuates outcomes of acute ischemic stroke in mice
Authors: Milo E Light, Sohom Mookherjee, J. David Symons, Megan Tandar, Nathan Hill. Mentors: John David Symons. Insitution: University of Utah. Acute ischemic stroke (AIS) deprives cerebral artery endothelial cells (ECs) of nutrients which decreases mTORC1 activity to initiate autophagic flux. We hypothesized that depletion of EC autophagy worsens outcomes of AIS. Methods and results. First, adult male C57Bl6 mice consumed a standard diet (control) or chow supplemented with the mTORC1 inhibitor rapamycin. After 3-weeks, phosphorylated ribosomal S6 / total S6 was greater (p<0.05) in liver segments of rapamycin vs. control-fed mice, indicating mTORC1 repression. Transient middle cerebral artery occlusion (tMCAO, 60-min;) followed by reperfusion (R, 23 h) increased infarct volume, neurobehavioral deficits, and motor dysfunction, to a greater extent (p<0.05) in control vs. rapamycin-supplemented mice. Second, adult male C57Bl6 mice with intact EC autophagy-related protein 3 (Atg3WT) or inducible depletion of EC ATG3 (Atg3EC-/-) completed tMCAO+R. ATG3 colocalization with VE-Cdh5 increased (p<0.05) after tMCAO+R in ipsilesional vs. contralesional hemispheres of Atg3WT but not Atg3EC-/- mice. Neutrophil infiltration, cell death, microglia and astrocyte activation, and neurodegeneration, were greater (p<0.05) in ipsilesional hemispheres of Atg3EC-/- vs. Atg3WT mice. Further, infarct volume was greater (p<0.05), and motor and neurobehavioral performance were worse (p<0.05), in Atg3EC-/- vs. Atg3WT mice. Third, tMCAO+R evoked infarct volume was less severe after rapamycin feeding in Atg3WT but not Atg3EC-/- mice, underscoring the importance of EC autophagy. Conclusions. Intact EC autophagy is protective concerning AIS, potentially via enabling: (i) recycling of damaged proteins; (ii) nutrient generation from degraded substrates; and / or (iii) arterial vasodilation for nutrient delivery.
Synthesis of 1,3-Diphenylpropene from Benzyl Bromide Through a Hydroboration and Palladium-Catalyzed Cross-Coupling Sequence
Authors: Michal Hansen, Nathan Werner. Mentors: Nathan Werner. Insitution: Southern Utah University. The preparation of pharmaceuticals and fine chemicals requires chemical reactions that make carbon-carbon bonds. Carbon atoms of three different hybridazations are known: sp3, sp2 and sp. Most reactions are specific to the hybridization of the carbon atom. We will study a reaction to bond an sp2-hybridized carbon to an sp3-hybridized carbon. This reaction could then be used to make interesting molecules that contain similar bonds. Specifically, the synthesis of 1,3-diphenylpropene will begin with a hydroboration reaction of phenylacetylene with pinacolborane. These two starting materials are combined with a 9-BBN-catalyst and heated to reflux in tetrahydrofuran at 65 degrees Celsius for 1 hour. The hydroboration product is then purified by aqueous extraction and silica gel flash chromatography. The product from the hydroboration reaction contains an sp2-hydridized carbon-boron bond and is then combined with benzyl bromide that contains a sp3-carbon-bromine bond. This is the reaction that we are studying. They are heated in DMF solvent with a palladium catalyst, ligand and base at 90 degrees Celsius for 1.5 hours. Once the reaction is complete, the cross-coupling product is purified by aqueous extraction and silica gel flash chromatography.