Architecture

Authors: Mallory Hinton, Matthew Madsen, Raechel Hunsaker, April Hulet. Mentors: April Hulet. Insitution: Brigham Young University. Seeding plants post disturbance on rangelands is a challenge due to unique ecological and environmental conditions such as limited water availability, invasive species, soil health, and native seed supply. One of the key factors to address these challenges and have a successful seedings is understanding the relationships between soil characteristics and the plants that grow within them. Our research evaluated plant growth for seventeen grass species in two degraded rangeland soils (a mine tailings impoundment and Santaquin Wildlife Management Area) in Utah. Grasses (10 PLS/5cm 2 pot) were grown in self-watering growth trays in a complete, randomized block design with four replicates per soil type. After 21 days in the greenhouse, plant densities and aboveground biomass were collected and analyzed. Soils differed in mineral content. Iron and nitrogen were 5- and 4-fold greater in Tailings than Santaquin soil; phosphorus, magnesium, and organic matter were 5.5-, 4-, and 18-folds lower in Tailings than Santaquin soil. The average density of plants was significantly different (p < 0.0001) between the two soil types; in the Santaquin soil plant density was 5.73 plants/pot, in Tailings soil plant density was 2.20 plants/pot. No individual grass species were significantly different from each other in the Tailings soil (p = 0.51). However, individual grass species were significantly different from one another in the Santaquin soil (p = 0.05). Both Tailings and Santaquin soil types had the highest densities of slender wheatgrass (Elymus trachycaulus; 4.75 plants/pot and 8.25 plants/pot, respectively) and tall wheatgrass (Thinopyrum ponticum; 4.75 plants/pot and 10.25 plants/pot, respectively). Sandbergs bluegrass (Poa secunda) had the lowest density in both soil types (zero plants in Tailings soil and 2.50 plants/pot in Santaquin soil). To make informed decisions when selecting plant species for seed mixes, soil characteristics should be considered.

Authors: Allison Gabbitas, Kaitlyn Allen, Gene Ahlborn, Shintaro Pang. Mentors: Shintaro Pang. Insitution: Brigham Young University. Mycotoxin contamination on food and feed can have deleterious effect on human and animal health. Agricultural crops may contain one or more mycotoxin compounds; therefore, a good multiplex detection method is desirable to ensure food safety. In this study, we developed a rapid method using label-free surface-enhanced Raman spectroscopy (SERS) to simultaneously detect three common types of mycotoxins found on corn, namely aflatoxin B1 (AFB1), zearalenone (ZEN), and ochratoxin A (OTA). The intrinsic chemical fingerprint from each mycotoxin was characterized by their unique Raman spectra, enabling clear discrimination between them. The limit of detection (LOD) of AFB1, ZEN, and OTA on corn were 10 ppb (32 nM), 20 ppb (64 nM), and 100 ppb (248 nM), respectively. Multivariate statistical analysis was used to predict concentrations of AFB1, ZEN, and OTA up to 1.5 ppm (4.8 µM) based on the SERS spectra of known concentrations, resulting in a correlation coefficient of 0.74, 0.89, and 0.72, respectively. The sampling time was less than 30 min per sample. The application of label-free SERS and multivariate analysis is a promising method for rapid and simultaneous detection of mycotoxins in corn and may be extended to other types of mycotoxins and crops.

Authors: Raechel Hunsaker, Matthew Madsen, Mallory Hinton, Derek Tilley, April Hulet. Mentors: April Hulet. Insitution: Brigham Young University. Many early successional plant species have been considered weeds because of their lack of forage value for livestock. However, early successional plant species have the potential to aid rangeland restoration by providing food sources for pollinators, modifying soil in preparation for climax plant communities, and competing against invasive species. To determine which early colonizing species have the greatest restoration potential, interspecific competitive interactions should be evaluated. Our research objective was to evaluate the competitive abilities of two native pioneer forb species, curlycup gumweed (Grindelia squarrosa) and prairie aster (Machaeranthera tanacetifolia), against three common rangeland grasses including 1) native early successional species, bottlebrush squirreltail (Elymus elymoides), 2) invasive colonizing species, cheatgrass (Bromus tectorum), and 3) climax community species, bluebunch wheatgrass (Pseudoroegneria spicata). Treatments included each of the three grass species seeded at high and low densities with curlycup gumweed or prairie aster in two soils (mine tailings and disturbed rangeland) in a greenhouse. After being cultivated for 54 days, above-ground biomass for both forbs were not significantly different when seeded alone, or with high and low densities of grasses in the mine tailings soil (p ≥ 0.05). However, in soil from the disturbed rangeland, forb biomass differed. When planted alone, curlycup gumweed and prairie aster biomass was on average 2.5- and 3-fold greater than when planted with high and low densities of squirreltail and cheatgrass (p ≤ 0.05). Both forbs had significantly lower biomass when planted with a high density of bluebunch (p ≤ 0.05), however, when planted with a low density of bluebunch, biomass was not significantly different than when planted alone (p ≥ 0.05). Results indicate that high densities of squirreltail, cheatgrass, and bluebunch inhibit curlycup gumweed and prairie aster growth on disturbed rangeland soil, and that interspecific competition may be a barrier to the successful establishment of early successional forbs.

Authors: Reganne Leigh Hales, Laura Sutherland, Melissa Sanchez Herrera, Samantha Standring. Mentors: Seth Bybee. Insitution: Brigham Young University. We explore the phylogeny of Hetaeriinae using a targeted enrichment approach (AHE) on gDNA gathered largely from museums. AHE resulted in 20KB (18.5KB of nuclear and 1.5 of mitochondrial DNA) for each taxon. Previous research, based on sanger data generated from three genes, demonstrated that Hetaerina Hagen in Selys, 1853 is not monophyletic but no taxonomic changes were proposed due to the hope of one day having more data. Our goal for this research was to have a larger dataset to test the monophyly of Hetaerina and update the classification. Our results confirm those of the most recent phylogeny of Hetaerina: the genus is non-monophyletic. We recover Mnesarete Cowley 1934 and Ormenophlebia Garrison 2006 within Hetaerina. We have preliminary data (results not shown) demonstrating that both Iridictyon Needham & Fisher 1940 and Bryoplathanon Garrison 2006 are also within Hetaerina. However, due the placement of these genera there is not a clear way to retain these genera and it is likely they will need to be placed within Hetearina due to priority. We further explore the evolution of some characters associated with habitat preference.

Authors: Lauren Ford, Joel Woolley, Ryan Powers, Paulina Medellin, Hillary Wadsworth, Jordan Yorgason. Mentors: Jordan Yorgason. Insitution: Brigham Young University. Women prescribed psychostimulants have self-reported changes in drug efficacy that coincide with menstrual cycling. Furthermore, cocaine and amphetamine effects on dopamine (DA) transmission are more potent in female rodents, an effect that has been linked to cycling hormone levels. However, it is unknown if changes to DA transmission vary by specific psychostimulant, and striatal DA transmission has not yet been well characterized across the estrous cycle. The present study considers dopamine release and reuptake kinetics across various stages of the estrous cycle in the nucleus accumbens (NAc), a key region for dopamine-mediated learning. The effects of cocaine, methamphetamine, and methylphenidate on female dopamine transmission are examined using slice voltammetry. Our data shows that compared to a male control group, baseline (pre-drug) dopamine release in the NAc was lower in females overall, but not at all estrous stages. Applying increasing concentrations of cocaine or methylphenidate revealed similar patterns of enhanced, then diminished release in all mice. Methamphetamine decreased NAc dopamine release similarly in both males and females, but females in estrus were more affected than males, and those in met/diestrus less. Methamphetamine also slowed dopamine uptake in all mice, and at lower concentrations than cocaine or methylphenidate. We find minimal sex differences between cocaine and methylphenidate effects in the NAc, suggesting that the underlying cause of their observed behavioral sex differences may be specific to other striatal regions. On the other hand, methamphetamine-induced DA release fluctuates distinctly with the estrous cycle and peaks when estrogen levels are at their highest, indicating that estrogen and methamphetamine mechanisms share a target in NAc DA terminals that cocaine and methylphenidate do not. This work refines our understanding of DA transmission in females and indicates potential future directions for understanding female psychostimulant abuse.

Authors: Karen Hoggan, Adia Migliori, Jonathan Harr, David Aguilar Alvarez. Mentors: David Aguilar Alvarez. Insitution: Weber State University. BackgroundElevated blood pressure (BP) is a significant risk factor for cardiovascular disease. The effects of high sodium (Na) intake on blood pressure are widely recognized. Of late, potassium (K) intake has gained recognition as a factor in hypertension. Recent studies have shown that the Na/K ratio consumed may be more predictive of hypertension than solely sodium intake. This study examines the association between the Na/K ratio and BP in males and females.MethodsWe utilized a cross-sectional design to evaluate self-reported two-day diet records for 73 male and 183 female students. Sodium and potassium intake were calculated using Diet and Wellness Plus. BP measurements were taken from each participant. Partial correlations were conducted between systolic (SBP) and diastolic blood pressure (DBP), and the following variables: Na, K, and Na/K. SBP means were compared between high sodium consumers and low sodium consumers with the same Na/K ratio using independent samples t-test.ResultsNeither male nor female participants’ SBP or DBP were associated with Na or K intake (p>0.05). However, an increased Na/K ratio was associated with higher DBP in males (r=0.254, p=0.29), but not in females (r=0.04 p=0.79). When the Na/K ratio was paired, participants who consumed over 3000 mg of sodium had a significantly higher SBP (121.1 ± 12.9) than those who consumed less than 3000 mg (115.9 ± 10.7, p=.004).ConclusionsConsumption of Na and K may affect male and female BP differently. In males, the Na/K ratio was predictive of increases in blood pressure. Although Na/K ratio seems to be more predictive of this parameter, within the same Na/K ratio, having lower sodium consumption was associated with lower SBP. This illustrates the complex interaction between BP regulation and nutrition, emphasizing the significance of both lowering sodium intake and maintaining a balanced Na/K ratio for optimal heart health.

Authors: Sophia Kramer, Violeta Vasilevska. Mentors: Violeta Vasilevska. Insitution: Utah Valley University. Preliminary literature review showed that studies have been conducted following either elementary or middle/high school students’ after-school math programs. However, this preliminary lit review did not provide any relevant comparison of the data collected from these students’ groups. In this study, we will conduct two after-school meetings with elementary and high school students in the spring semester. During the meetings, students will be working collaboratively on hands-on, discovery math activities. This hands-on learning experience will be adjusted for different grade levels. Both student groups will be given a pre-survey consisting of attitude questions. They will assess perceptions about learning that occurs in after-school (out-of-classroom) learning environments that encourage mathematical thinking and collaboration. At the end of each after-school meeting, students will be given a post-survey (that will contain some questions matching the pre-survey ones). The collected survey data will be compared to examine the different responses resulting from the two different age groups, maturity levels, gender, etc. Survey results will be used to obtain observations about the effect of such after-school programs on student attitude toward math.In this presentation, we present the preliminary data collected during the first after school meeting held at the beginning of the spring semester and provide a comparison of the collected data. Additional meetings and surveys will be conducted later in the semester.

Authors: Eden Backman, Britt Wyatt, Kandace Flanary, Jessica Cusick, T Heath Ogden, Joshua Premo. Mentors: Joshua Premo. Insitution: Utah Valley University. Utah Valley University serves a unique student population where ~70% of students are Latter-Day Saints (LDS) and ~30% are non-traditional (over the age of 24) (UVU IR, 2023). Compared to the overall 1.6% of LDS individuals in the United States (Pew Research Center, 2023), the identities of UVU students are vastly underrepresented in education research that has been conducted at other institutions. This is especially important as the LDS religion has been related to one of the most conservative religious groups concerning gender roles (Heaton, Bahr, and Jacobson 2004). Additionally, recent preliminary analysis of public institutional data from Utah universities indicates that UVU is graduating more men than women in biology, drastically contrasting other Utah university and national trends. In Utah, the STEM workforce has seen a significant 20% increase since 2016 (UWLP, 2022). However, it's important to note that during this period of expansion, men have disproportionately reaped the benefits in terms of STEM career opportunities. According to IWPR (2019), men in Utah are 2.5 times more likely to secure a STEM career compared to women. Furthermore, in 2020, STEM careers in Utah boasted median annual wages that were over twice as high as those in other occupations, which has direct implications for individuals' lifetime earnings and social capital. Given this information, we questioned why women were not choosing educational paths that will promote a career in STEM? If they are choosing STEM majors, then what are the factors that promote women to leave STEM during their undergraduate careers? This research project focuses on trying to answer these questions specifically at Utah Valley University (UVU). UVU’s biology program reflects similar patterns that are seen in the STEM workforce in Utah. UVU’s biology program was graduating twice as many men compared to women during the most recent academic year (2022-23)(UVU IR). This was the lowest percentage of women earning a four-year biology degree when compared to all other Utah institutions (USHE, 2023). The following research questions were addressed to help inform our understanding of why inequities in degree attainment by gender are being seen at UVU: 1) Are women less accepting of biological ideas (evolution, vaccines, climate change, etc.) that may be impacting women’s pursuits of biology? 2) Are there differences in how women are relating to science (motivation, immersion, or integration) that may be impacting their pursuit of biology? 3) Are there differences in political orientation or religious affiliation that may be impacting women’s pursuits of biology? To answer these questions, we collected data from 1,455 students (22% were biology majors) enrolled in biology classes at UVU in Fall 2023. Comparisons were made using independent samples t-test (with Bonferroni adjustments) to see the extent to which factors varied between men and women both within and outside of the biology major. In contrast to expectations, results for research question #1 show that women biology majors did not agree with science less than men. In fact, women strongly agreed with several science ideas at a higher rate than did men. These ideas included environmental concern and climate change (women = 66% vs. Men = 41%) and vaccination (women = 63% vs. Men = 48%). This result suggests that differences in acceptance of science ideas may not be driving the differences in degree attainment in biology. If anything, these results suggest that women should be more likely to continue in the biology major compared to men. In addition, when students’ immersion (sense of belonging and science identity) in science was assessed by gender women were slightly higher than men with about 8% more strongly agreeing to being immersed in science. This finding suggested that women are not experiencing lower immersion as a potential factor impacting degree attainment. Further examination of additional factors is underway. This study highlights that there are specific factors that may be contributing to gender disparities in biology bachelor's degree attainment at UVU. We recommend specific interventions targeting areas of differences in the biology program to provide additional scaffolds and supports to promote more equitable career trajectory and lifetime earnings for women pursuing Biology at UVU.

Authors: Tessa Sabin, Derek Bagley, Kylie Olsen, Alexis Klein, Haven Broadhurst. Mentors: Sandi Gillam. Insitution: Utah State University. The purpose of this project was to create systematic, reliable rubrics for using the Frog Story series in language sample analysis for the diagnosis and treatment of children with developmental language disorders (DLD).Language sample analysis is a critical part of the assessment process by speech language pathologists (SLPs) for determining whether a child has a developmental language disorder. This is accomplished by analyzing a child’s use of vocabulary, sentence structures, and grammatical markers (i.e., past tense) and comparing it to their typically developing peers. Once diagnosed, language sampling is used as part of progress monitoring efforts to ensure the child is making reasonable progress toward their language goals in one (or all) of these areas.Elicitation of language from a child is often achieved by asking them to tell a story. One popular way that SLPs have obtained samples is to ask them to retell one of four popular wordless picture books from the Frog Story series by Mercer Mayer. This series involves the antics of a frog and his boy as they encounter different adventures. There is no rubric or “analysis key” associated with the stories leaving the SLP to decide how to use the information obtained from the story independently. This makes it hard to obtain reliable results over multiple time points for use in progress monitoring.In this project, a team analyzed all four Frog stories for their inclusion of specific story elements (i.e., character, setting, episode), vocabulary and sentence structures; and separate rubrics were created. The methodology for identifying the language parameters of interest, reliability in coding, and uses for the rubrics will be described. The rubrics will be automated using a web application so clinicians can upload their child’s story and have them instantly scored, making their use in analysis more reliable and consistent.

Authors: Grant Hendrickson, Christian Moody, Nellie Bowman, Nick Jeffery, Cairo Ziebarth, Joel Davis, Melissa Reeves, Heather Wilson Ashworth. Mentors: Heather Wilson Ashworth. Insitution: Utah Valley University. Self-competence and effort belief may impact student motivation and success in introductory chemistry courses. Self-competence is the need to feel efficacious and capable3. Effort belief is the concept that working harder at a task produces better results4. Mastery-Based Grading (MBG), a nonconventional grading method, provides multiple opportunities for students to show mastery of the course learning objectives5. This research examines the effect of Mastery-Based Grading (MBG) in an active learning classroom on student's self-competence and effort belief compared to that of a conventional grading (CG) approach in a traditional lecture-based classroom. Hypothesis: MBG leads to increased student self-competence and effort belief compared to CG courses. Self-determination1 and expectancy-value theories2 provide the context for understanding the self-competence and effort belief data. At a private midwestern college, general chemistry students in an active learning, MBG course (53 students) and a lecture course (48 students) with a conventional grading policy were studied using a mixed methods approach. Surveys containing Likert and reflection questions were given during week 3 and 14 of the semester. A coding scheme was developed, and reflection questions were coded to consensus. Coded data had a Pearsons coefficient greater than 0.76. Results: Notably, students with initially low self-competency Likert scores showed significant improvement (p=0.01) in the MBG-active course, but not in the conventional course. No significant improvement was observed in students' effort-belief scores as the scores were high at the beginning and stayed high at the end of the semester. In response to the reflection question, “Do you believe you have the ability to be successful in this course?”, there was a 15.35 percent increase in responses that reflected effort-belief in the MBG active learning course. This theme was absent in CG courses throughout the semester. It is noteworthy that MBG students recognized (14.29% compared to pre-reflections) the specific components of the course structure that helped students succeed. This early explorative data suggests that students in active learning MBG courses may experience an increase in self-competence and perceived effort belief compared to their counterparts in traditional classes. 1Deci, E. L., Vallerand, R.J., Pelletier, L.G. & Ryan, R.M. (1991). Motivation and education: The self-determination perspective. Educational Psychologist, 26, 325-346. 2Eccles (Parsons), J. (1983). Expectancies, values, and academic behavior. in J.T. Spence (Ed.) Achievement and Achievement Motivation. San Francisco: W.H. Freeman. 3Ferrell, Brent and Jack Barbera. (2017). Analysis of students’ self-efficacy, interest, and effort beliefs in chemistry. Chemistry Education Research and Practice, 16; 31-337. 4Skinner, E., Saxton, E., Currie, C., & Shusterman, G. (2017). A motivational account of the undergraduate experience in science: brief measures of students’ self-system appraisals, engagement in coursework, and identity as a scientist. International Journal of Science Education, 39(17), 2433-2459. 5Toledo, S., & Dubas, J. M. (2017). A learner-centered grading method focused on reaching proficiency with course learning outcomes. Journal of Chemical Education, 94(8), 1043-1050.

Authors: Libby Brooks. Mentors: Natasha Pavlova. Insitution: University of Utah. About 90% of cancer deaths are from the development of secondary tumor growths from a process called metastasis. As cancer cells divide uncontrollably nutrients from nearby tissue – specifically the amino acid glutamine – are depleted. Glutamine is one of the most abundant amino acids in the bloodstream, and most cells cannot live without it. Tumors have poor vasculature which further contributes to the depletion of nutrients. Even in nutrient-depleted environments, tumors have found ways to grow.Tumors are comprised of cancer cells as well as non-cancerous stromal cells. Studies have shown stromal cells can synthesize glutamine which they release into the tumor microenvironment feeding cancer cells and allowing them to grow. However, the signaling pathway used between the cancer and stromal cells in this relationship remains unclear.To study the signaling pathway by which stromal cells are synthesizing glutamine I treated cells with a common anti-inflammatory drug, dexamethasone. Mice receiving dexamethasone over a long period of time had increased lung metastases when injected with cancer cells. Dexamethasone binds to the glucocorticoid receptor (GR) which activates the expression of glutamine synthetase (GLUL) enzyme mRNA. The expression of GLUL causes the cell to synthesize glutamine. However, the role of GR, in regulating GLUL expression in tumors, remains insufficiently studied.The experiments done for this project show that dexamethasone induces GLUL expression in stromal cells such that they start releasing glutamine. This may promote growth of cancer cells even when there is a deficit of nutrients around. It is hypothesized that due to this property, dexamethasone increases risk of metastasis. This project will aid in the development of cancer therapeutics to treat metastatic cancers.

Authors: Daniel Barrera. Mentors: Anna Beaudin. Insitution: University of Utah. Tissue-resident macrophages play critical roles in tissue homeostasis and immunity, and many of them have a distinct fetal origin and developmental trajectory as compared to their adult bone marrow-derived counterparts. However, the specific mechanisms underlying their developmental signaling pathways have not been as thoroughly examined as in the adult. Our lab recently demonstrated that fetal-derived macrophage development is regulated by expression of the lymphoid-associated interleukin-7 receptor (IL-7R) in mice, but the fetal source of the cognate cytokine ligand, interleukin-7 (IL-7), has yet to be determined. This project investigated fetal macrophage cells as a potential source of IL-7 production, with the aim of providing further insight into these signaling pathways during prenatal development. A transgenic mouse model was used that expresses IL-7 attached to green fluorescent protein (GFP) in order to measure GFP expression as a proxy for IL-7 expression in developing tissues. Embryonic tissues were extracted from mouse fetuses at 17.5 days post-conception and cells were isolated and stained with antibodies to identify blood, endothelial, and stromal cells as putative sources of IL-7 production. Samples were also intracellularly stained for GFP in order to quantify the IL-7 production across different cell types within different tissues in the embryo. The resulting data preliminarily identifies fetal macrophages as the primary producers of IL-7 across common tissues in the developing embryo. A better understanding of the developmental signaling pathways that regulate fetal immune development can expand comprehension of the origins of early immune dysfunction and help mitigate disease susceptibility from early life.

Authors: Amber Brooks. Mentors: Michelle Schober. Insitution: University of Utah. Traumatic brain injury (TBI) can cause death or result in long-term disabilities. TBIs are the leading cause of death and disability due to trauma and the leading cause of acquired neurological disability in children. At present, medical treatment using supportive and specific therapies to optimize recovery are lacking. Docosahexaenoic acid (DHA), a component of fish oil and a natural constituent of brain cell membranes, is a potential candidate therapy to improve neurologic recovery after severe TBI. The objective of our project is to test the hypothesis that DHA improves cognitive outcome and brain imaging in a male rat model of pediatric TBI, controlled cortical impact (CCI) in male rat pups. Seventeen-day-old male rat pups received CCI or a minimally invasive (SHAM) surgery. Half of the CCI and SHAM rats were fed a DHA diet for 60 days before experiments began. Learning was tested using a Morris Water Maze (MWM) experiment and memory was tested using a Novel Object Recognition (NOR) experiment. Brain injury assessment was accomplished using T2 and DTI magnetic resonance imaging (MRI). The T2 MRI scans were used to measure the volume of the hippocampus, the center for learning and memory, and to lesion volume, to assess loss of hemisphere volume. The DTI MRI scans were used to observe the injury to the white matter of the brain. Based on preliminary findings, we anticipate that the results of the study will not support our hypothesis and that DHA will have no beneficial effects on improving cognitive outcomes and brain imaging.

Authors: Ryan Kunkler, Marcus Lawrence, Anna Edler, Casey Webb, Jacob Manning. Mentors: Marcus Lawrence. Insitution: Southern Utah University. Climbing is now an Olympic sport and thus the demand for understanding performance predictors to train with evidence has grown enormously. Previous climbing research has highlighted that finger strength and shoulder strength are important predictors of performance between lower level and higher level climbers. However, no study has examined the rate of force development in the upper body, and lower body strength also has not be assessed in climbing literature. PURPOSE: To determine if relationships exist between dominant and non-dominant finger RFD compared to dominant and non-dominant finger and shoulder strength as well as lower body strength. METHODS: Twenty subjects (n=8 female and n=12 male; age: 24.7±7.5 yrs; height: 177.6±7.8 cm; mass: 76.0±14.9 kg; IRCRA Sport Grade: 14.1±6.7; n=11 beginner/intermediate, n=9 advanced) completed this study. During a single session, following a standardized 3-5 min. warm-up all participants dominant and non-dominant finger strength and RFD (using a Tindeq dynamometer load cell attached via static rope to a 20mm edge) as well as shoulder strength (using the same Tindeq load cell with a static rope and olympic ring), and lower-body compound strength (isometric mid-thigh pull using G-strength dynamometer load cell attached to a straight bar with a static rope) were assessed. Three trials were done on each measurement with 1 min. between trials and 3-5 min. between tests. Pearson correlational analyses were done to determine correlation coefficients (r), with significance set at p<0.05. RESULTS: Both dominant and non-dominant RFD resulted in significant (p<0.05) large to very large positive relationships with dominant finger strength (r = 0.897 and 0.721, respectively), non-dominant finger strength (r = 0.913 and 0.757), dominant shoulder strength (r = 0.670 and 0.709), on-dominant shoulder strength (r = 0.724 and 0.744), and lower body compound strength (r = 0.645 and 0.653). CONCLUSION: Dominant and non-dominant RFD is positively related to upper and lower body strength in recreational to advanced climbers. Therefore, training finger RFD and lower body strength should be consider as important as developing finger and shoulder strength in recreational to advanced climbers.

Authors: Addison Hedges, Kevin Sattler. Mentors: Moriel Zelikowsky. Insitution: University of Utah. Trauma has been reported to affect over 70% of all adults worldwide. This includes, but is not limited to, physical and sexual violence, injury, threat of death, and natural disasters. Experiencing one or more traumatic events can lead to post-traumatic stress disorder, depression, and anxiety. These symptoms and disorders can negatively affect interpersonal relationships, confidence, aggression, and other aspects of daily behavior. Exactly how these traumatic events are encoded in the brain is poorly understood. Extensive research has been done on the hippocampus with regard to its central role in learning and memory, but only recently has research been done to uncover its role in emotional responses. This research has found distinct functional differences between the dorsal and ventral subregions of the hippocampus. Recent studies suggest that the ventral hippocampus (VH) plays an important role in emotional response. The VH projects to other emotional processing areas of the brain that modulate fear, aggression, and social processing. This project aims to test the hypothesis that distinct populations of neurons in the VH encode individual behavioral effects of trauma as well as discover the extent of overlap between neuronal cells activated by trauma-induced aggression (TIA) vs. trauma-altered sociability (TAS). To test this hypothesis, both male and female mice were injected with an hM4D inhibitory DREADD virus to chemogenetically silence VH. Later the mice underwent either no trauma or a foot shock trauma consisting of 10 1mA foot-shocks randomly applied over 60 minutes. They were then tested for aggression and social response using two distinct behavioral assays known as Resident Intruder and 3-Chamber. Half the mice received DCZ, a ligand used to activate DREADDs, while the other half received a control vehicle prior to each behavioral assay. Our findings show that silencing of the VH led to attenuated TIA and TAS when compared to control groups. Next, using retrograde viral tracing, activity-dependent neuronal tagging, and immunohistochemistry, we examined the existence and extent of overlapping neuron populations in the VH. These findings suggest the VH plays an important role in encoding and responding to trauma. They also highlight the importance of continued research into how behavioral changes are manifested in the brain and how these experiences are studied.

Authors: Diya Garg, Chadi Hage Chehade, Yeonjung Jo, Georges Gebrael, Nishita Tripathi, Beverly Chigarira, Arshit Narang, Vinay Matthew Thomas, Gliceida Galarza Fortuna, Patrick Campbell, Clara Tandar, Ayana Srivastava, Nicolas Sayegh, Sumati Gupta, Benjamin L. Maughan, Soumyajit Roy, Neeraj Agarwal, Umang Swami. Mentors: Neeraj Agarwal. Insitution: University of Utah. Trends in tumor NGS genomic testing at diagnosis of metastatic prostate cancer (mPC) and urothelial carcinoma (mUC) Diya Garg1, Chadi Hage Chehade1, Yeonjung Jo1, Georges Gebrael1, Nishita Tripathi1, Beverly Chigarira1, Arshit Narang1, Vinay Matthew Thomas1, Gliceida Galarza Fortuna1, Patrick Campbell1, Clara Tandar1, Ayana Srivastava1, Nicolas Sayegh1, Sumati Gupta1, Benjamin L. Maughan1, Soumyajit Roy1, Neeraj Agarwal1, Umang Swami1 1Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT; Objectives: Next-generation sequencing (NGS) can allow receipt of approved targeted therapies and recruitment into clinical trials and aid with prognostication and response to therapy. In mPC, the presence of homologous recombination repair (HRR) alterations can render patients (pts) eligible for PARP inhibitor therapies [PMID: 37442702]. In mUC, genomic alterations in FGFR3 or FGFR2 can make them eligible for erdafitinib [PMID: 31340094]. Multiple agents have tumor agnostic approvals for molecular specific alterations. Herein, we aim to analyze the current trends in NGS testing in both mPC and mUC. Methods: A de-identified nationwide Flatiron Health Electronic Health Record (EHR)-derived database was used to extract pt-level data. Eligibility: pts diagnosed with mPC or mUC and receiving treatment for their disease between March 2015 and December 2022. The NGS test was considered performed at diagnosis if completed within a year of the initial metastatic disease diagnosis. A two-sided 95% confidence interval (CI) was calculated using Clopper and Pearson method. The analysis was done using R version 4.2.3. Results: The study included 11,936 and 6,340 pts in the mPC and mUC cohorts, respectively. For mPC, the rate of NGS testing among men in 2015 was only 1.3% (95% CI 0.7-2.1%). This rate steadily increased, plateauing between 2021 and 2022 at 28% (95% CI 25.8-30.3%) and 27.1% (95% CI 24.5-29.8%), respectively. NGS testing was mainly performed on samples from primary prostate tissue (46.1%), followed by blood (32.8%) and saliva (0.1%) or from any of these 3 sites (2.9%). In the mUC cohort, the rate of testing among pts in 2015 was 6.7% (95% CI 4.8-8.9%). However, by 2021 and 2022, the rates had improved, reaching 46.8% (95% CI 43.5 – 50.2%) and 46.5% (95% CI 42.5-50.5%), respectively. Samples for NGS testing were mainly obtained from primary bladder tissue (72.8%), followed by blood (15.6%), or from both sites (0.2%). The sample source for testing was unknown in 18.1% and 11.4% of cases in mPC and mUC, respectively. Conclusions: In this large real-world analysis, we show that while the rate of NGS testing has improved over time, the majority of pts do not undergo NGS testing in both mPC and mUC cohorts. Addressing barriers to NGS testing remains an unmet need. Incorporating tumor genomic testing into the standard of care management can optimize treatment selection, prognostication, and access to clinical trials.

Authors: Chad Hyer, Bradley Bundy, Tyler Free. Mentors: Bradley Bundy. Insitution: Brigham Young University. Current trends in healthcare suggest a movement towards point of care treatment and diagnosis. This transition towards local or even at-home testing necessitates dramatic decreases in costs of diagnostic methods. Cell-free protein synthesis (CFPS) systems prove a potential tool for bringing diagnostic solutions to patients by providing patients with inexpensive, easy to use, and accurate tests that can be stored for long periods of time at ambient temperature. These CFPS diagnostic methods rely on the production of biosensor proteins using isolated molecular machinery from bacterial cell lysates and necessary substrates. When combined with human body fluids, these biosensors can detect the presence of important biomarkers of disease, aiding in diagnosis.CFPS systems, however, can prove difficult to use with human body fluids as CFPS systems rely on mRNA directed production of proteins, and human samples contain significant concentrations of RNAses which inhibit the production of biosensor proteins, preventing proper test results. Traditionally, this issue can be remedied in a CFPS system using commercially sourced RNAse inhibitors, but these inhibitors dramatically increase prices. Here we report on our production of RNAse inhibitors within a CFPS system to decrease costs of CFPS diagnostics by 90%. In our work, we report on the optimization of reaction conditions for producing RNAse inhibitors within a CFPS glutamine biosensor for use as a cancer treatment monitoring diagnostic. Using our methods, we expect to be able to dramatically reduce the cost of CFPS based diagnostic tools, helping empower the shift to affordable point of care healthcare.

Authors: Eliza Ballantyne, Maria Lizio, Anshuman Chaturvedi. Mentors: Dustin Shipp. Insitution: Utah Valley University. We evaluate techniques for enhancing performance of Raman based classifiers of lung cancer and compare them to results from immunohistochemistry and hematoxylin and eosin (H&E) staining for fixed samples. In the United States, more patients die from lung cancer than from any other type, although it ranks as the third most common cancer. For patients with lung cancer, preserving the healthy bronchioles where cancer usually forms is vital to continued lung function. Raman spectroscopy is already a valuable asset in distinguishing between healthy tissue and many types of cancer and decreases discrepancies between diagnosis, saving medical resources and improving patient outcome. Lung cancer is especially challenging for Raman spectroscopy, in part because tar fluorescence often overpowers critical chemical features. We introduce measurement and classification approaches as the first step to overcome this challenge and create reliable Raman based classifiers for lung cancer. By working with fixed tissue sections, we avoid tar fluorescence and demonstrate the ability to detect tumors and premalignant abnormalities in lung tissue. These samples allow collaboration between adjacent sections in both H&E staining and immunohistochemistry. Furthermore, additional measurements of fixed sections can be acquired at any time. These advantages provide flexibility to acquire more detailed training sets, include more detail of any borderline cases, and compare Raman spectroscopy to more specialized histopathological techniques.