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Fine Arts

Unlocking the Mysteries of Glacial Watersheds: Tracing the Path of Water Chemistry Over Time and Space

March 21, 2024 12:00 AM
Authors: Miaja Coombs, Greg Carling. Mentors: Greg Carling. Insitution: Brigham Young University. Our research delves into the intricate relationship between glaciers and Alaskan rivers. We embarked on an extensive study across Southcentral and Interior Alaska, spanning various mountain ranges, to examine how glaciers affect the water chemistry in these regions. From small cirque glaciers to expansive valley glaciers and sediment-covered glaciers, we collected data from river sites extending from glacier termini to the ocean or larger river systems. Over a span of two years, our weekly and monthly samples shed light on the complex interplay of elements, isotopes, and seasonal variations in water sources within these proglacial rivers and streams. Our findings reveal the dynamic nature of glacier-influenced watersheds, especially in the context of a changing climate.

Ancestral Puebloan Ceramics Technology and Vessel Properties at Alkali Ridge Site 13

March 21, 2024 12:00 AM
Authors: Carolina Corrales. Mentors: James R. Allison. Insitution: Brigham Young University. This research analyzes ceramics found at the Alkali Ridge Site 13 in southeast Utah. The information generated with this research will allow us to know more about the technological choices of the Early Pueblo I people who lived at this location in the late A.D. 700s. The methodology will examine rim sherds through refiring and porosity tests. Refiring small sections of the sherds will provide initial information about the chemical composition of the clay used to create the vessels. The porosity tests should help determine the pieces' physical properties linked to different technologies. The combination of all these data will show differences in raw materials and their impact on the constitution of the vessels. The database obtained will allow us to statistically compare information from red, grey, and white wares, identifying patterns in size, shape, kind of material, and the technology used for each type.

Re-Membering and the Role of Community In Exorcism In Toni Morrison’s Beloved

March 21, 2024 12:00 AM
Authors: Jen Hansen. Mentors: Nicole Dib. Insitution: Southern Utah University. Toni Morrison’s contribution to Gothic horror with Beloved expands the tradition into the history of human enslavement, specifically in the context of American history. She reconceptualized ‘remembering’ as both the conscious awareness of the past and the literal reassembling of members of the body, and by extension the family and the home. Morrison coined the term “rememory” in reference to the intentional act of recollection performed by an entire community. The characters of the novel are haunted in several ways and each haunting is only exorcized or overcome through acts of communion, or rememory — many of which are symbolically religious even if not sanctioned as such. The main character is a woman named Sethe, who is haunted by the ghost of the daughter she murdered rather than allow to be taken as a slave. The ghost of Beloved represents the return of the repressed trauma of her death and the connection to Sethe’s previous life in captivity. In order to exorcize Beloved’s ghost and free themselves from her oppressive presence, Sethe and her living daughter, Denver, must re-member the broken family structure within their home, and rememory the traumatic past with the support of the community in order to heal. American Gothic traditions in literature have long been used to reflect on anxiety, discrimination, and disempowerment related to the Other. In this novel, Morrison uses that tradition to give shape to the culturally specific legacy of slavery in America. In this presentation I examine the novel’s Gothic elements and the ways the community plays the part of the exorcist as an essential advocate for the physical and emotional survival of Sethe and Denver.

Measuring shear wave speed in tendons using low-cost accelerometers on a flexible PCB with an Arduino microcontroller

March 21, 2024 12:00 AM
Authors: Eli F Smith, Christopher Dillon, Matthew S Allen. Mentors: Matt Allen. Insitution: Brigham Young University. Background: Shear wave tensiometry offers a method to measure in vivo tendon tension, crucial for inferring applied loads on tendons. However, existing equipment for this purpose is costly and lacks mobility, limiting the ability to study a larger cohort of subjects engaged in various physical activities. Goal: This research aimed to assess the viability of utilizing low-cost digital accelerometers in conjunction with an Arduino-based microcontroller for shear wave tensiometry. Approach: This work employs surface-mounted accelerometers on a custom flexible printed circuit board (PCB), so that even spacing can be maintained between the accelerometers without interfering in data collection. To test the system and verify its ability to acquire measurements at a high enough rate, the PCB was connected to a shaker driven with a known sinusoidal signal. The flexible PCB was held in place on the Achilles tendon using athletic tape with a tapper placed on the tendon to send a shear wave through the tendon. Results: The results obtained to date compare the accuracy of the proposes system relative to the current system, which uses instrument grade accelerometers. Results obtained to date on the tendon reveal the degree to which the PCB interferes with the measurements, and suggest possible modifications to improve future designs. Conclusion: To attain valid shear wave tensiometry data, further iterations of the flexible PCB design are needed. Moreover, employing more powerful microcontrollers capable of accommodating the requisite sample rates is necessary for an improved system.

Victor LaValle’s Destroyer: Comic as a New Medium for Black Narratives

March 21, 2024 12:00 AM
Authors: Shauri Thacker. Mentors: Nicole Dib. Insitution: Southern Utah University. The representation of Black narratives within the medium of comics and graphic novels has been and continues to be sparse compared to the focus on white characters and stories. In recent years, however, a new paradigm of Black representation has been appearing in comics and comics studies. Emerging from Black Lives Matter movement discourse about police brutality and taking a new angle on the “organic black protest tradition” is Victor LaValle and Dietrich Smith’s 2017 graphic novel Destroyer. Their visual narrative follows the last descendant of Frankenstein—Dr. Josephine Baker—and her endeavors for justice after the murder of her son Akai as her plotline weaves with the original Frankenstein creature’s quest to subdue humanity (Rickford, 35). In this paper, I will perform a close reading of this work using the theoretical lens of critical race theory and its intersection with feminist theory. My reading will prove that LaValle and Smith’s comic—though it does not have the intent of treating Black women as a “unitary and monolithic entity”—increases a reader’s focus on mother and doctor Josephine Baker in order to portray her rage and grief over Akai’s death at the hands of a police offer (Nash, 8). This analysis of Dr. Baker’s character, combined with LaValle’s usage of allusions and intertextuality, subverts the stereotypically white comic narrative by portraying the lived reality and precarity of many Black individuals within the United States. Through this reading, I will demonstrate that the medium of comics allows for a multifaceted depiction of Black narratives and a new form of literary activism.

The Impact of Augustine’s Theory of Evil on Latter-Day Saint Teachings

March 21, 2024 12:00 AM
Authors: Miranda Judson. Mentors: Mike Ashfield. Insitution: Utah State University. This research explores the relationship between Latter-Day Saint views and classical Christianity through the lens of the problem of evil. More specifically, this research looks at the implications both Augustine’s theory of evil and Latter-Day Saint theology have on each other and the impact that would occur should certain aspects be accepted by Latter-Day Saints. I argue that Latter-Day Saints should accept an interpretation of doctrine through the privation theory of evil in order to avoid potential threats to God’s goodness and the Plan of Happiness. Understanding Latter-Day Saint doctrine through this lens will better situate further research in the broader context of Christianity. Furthermore, accepting this theory will allow for a deeper understanding of the premortal existence and postmortal states. This deeper understanding is beneficial for both adherents to and researchers of Latter-Day Saint teachings. Finally, I argue this interpretation does not pose a threat to the doctrine of “opposition in all things.”

The Folklore of the Ghastly Menace

March 21, 2024 12:00 AM
Authors: Matilda Gibb. Mentors: Ami Comeford. Insitution: Utah Tech University. Prior to 1930, cannabis was used frequently in therapeutic practices and was found in many over the counter health products. However, around this time what has been dubbed the “pot panic” began infecting American citizens. It was then the film Reefer Madness came onto the scene, exacerbating the public’s trepidation over the allegedly morally degrading effects cannabis inflicted. Putting melodrama at the forefront, the film exploits societal queasiness over sex, drugs, violent crime, and immigration to push its propagandist agenda. The fear mongering rhetoric and imagery used effectively poisoned the public and altered societal perceptions of medical and recreational cannabis use. The goal of this project is to analyze the rhetorical argument presented in the film and address its broader reach and effects. Lastly, I will argue that the message presented in Reefer Madness was not based on any logical argument; it was based on folklore.

More Than Accommodating

March 21, 2024 12:00 AM
Authors: Natalya Misener, John Wolfe. Mentors: John Wolfe. Insitution: Utah Tech University. In our effort to improve education and create a more inclusive learning environment, Natalya Misener and Professor John Wolfe from Utah Tech University are exploring the experiences of neurodivergent students in classrooms. Our goal is to better understand, support, and empower these students, challenging the way things are typically done. We believe it's important to understand that these conditions come in a variety of forms and affect both students and professors in the classrooms in ways that are not currently being discussed, especially as many minorities, especially women and people of color, go undiagnosed and unaccommodated for a variety of reasons. We believe that by educating professors and students alike on how classroom environments can be more supportive of neurodivergent students, we can benefit the entire classroom, including ‘typical’ students. To make this happen, we believe it's important to rethink how we organize our classes, assignments, and interactions, so that we don't have to rely too much on services like the Disability Resource Center (DRC). We have practical suggestions, like adjusting assignments and deadlines and creating a comfortable classroom environment. It's also crucial to be clear in our expectations and listen to what the students need. We ask some important questions, like whether students should consider their instructors' limitations and how students see disabled instructors in their journey to graduation as well. We call for a shift beyond just accommodating neurodivergent students. We want to encourage educators to think about how they can better support all students in their classrooms. It's urgent that we change how we approach neurodivergent students- in order to create a more inclusive, supportive, and successful environment for us all.

Ethical Analysis of Web3 and Decentralized Internet

March 21, 2024 12:00 AM
Authors: Karli Kallas. Mentors: Jared Colton. Insitution: Utah State University. For this presentation, I will present a care ethics analysis of Web3 and decentralized internet, with a specific focus on privacy concerns and the increase of internet scams due to the lack of regulation and accountability. Ethics of care argues that there is moral importance in promoting the well being of care givers and receivers in a network of social relations, recognizing that all human life is co-dependent. It is important to note that care ethics was not designed to engage with such large networks of relationships, I will be expanding it to apply to the situation, so it gives us one new way of viewing the situation. I will expand on this ethical lens by including points from care ethics such as the empathy in the design of Web3, and responsibility for online communities. My research explores the intricate web of relationships and responsibilities in the decentralized environment, aiming to shed light on the vulnerabilities within internet scams in contrast to the benefits of cryptocurrency. I examine the moral dimensions of these scams, considering the impact on individuals and the broader digital community. The emphasis on care ethics demonstrates the interconnectedness of actors within Web3, as well as the need for a collective commitment to certain forms of innovation.

Theology and Prosperity of Women Within the Latter-Day Saint Church: Exploring Utah’s Religiosity Effects On Feminism

March 21, 2024 12:00 AM
Authors: Alexis West Salinas. Mentors: Johnathan Chidester. Insitution: Southern Utah University. There is a growing need to further understand the psychological and physical effects of religiosity among female-identifying members within the LDS church. According to recent studies, as of June 2023, Utah has a Mormon population of 68.55%. Within these statistics, about a fifth of LDS members reported that they have or are currently taking medication for depression. The article also states that 27% of LDS women have depression compared to the 14.5% of LDS men. The church has an infamous reputation with the demonization of mental illness, especially with women. Given the history of society’s treatment of women, women are at an increased risk of suffering within the LDS church. It is important to have the best interests of LDS women in discussing the effects religiosity has on female members within Utah. This paper will analyze the well-being among women of the LDS church as well as assess the specific effects religiosity within Utah may produce surrounding the topics of purity culture, societal expectations, job opportunities, and relationships. This paper will also touch on topics relating to Utah education, LGBTQ+ women within the church, as well as compare and contrast gender roles and sociology. Composing a formulated understanding of these relationships paves the pathway forward in implementing accommodating tools for women within the LDS church in mental health and spirituality.

Reducing the Cytotoxicity of Polyethylene Glycol Diacrylate Microfludic Devices Using an Isopropyl Alcohol Washing Method

March 21, 2024 12:00 AM
Authors: Parker Johns, Chandler Warr, Gregory P Nordin, William G Pitt. Mentors: William G Pitt. Insitution: Brigham Young University. Polyethylene glycol diacrylate (PEGDA) microfluidic devices have gained prominence in various biomedical and analytical applications due to their exceptional material properties and compatibility with cell culture systems. However, the presence of residual uncrosslinked PEGDA monomers and photoinitiators within these devices can lead to cytotoxicity concerns, potentially compromising cell viability and experimental results. In this study, we present an innovative approach to reduce cytotoxicity associated with PEGDA microfluidic devices by implementing an isopropanol (IPA) washing method.Our investigation involves thoroughly characterizing the cytotoxicity of untreated PEGDA microfluidic devices and comparing it with devices subjected to the IPA washing procedure. We systematically assess cytotoxicity using cell viability assays and cell proliferation studies to quantify the impact of residual cytotoxic compounds on cells cultured within the microfluidic channels. Our results demonstrate that IPA washing significantly reduces the cytotoxic effects of PEGDA microfluidic devices, leading to improved cell viability and overall biocompatibility.Furthermore, we elucidate the mechanisms behind the reduction in cytotoxicity, shedding light on the role of IPA in effectively removing unreacted PEGDA and photoinitiators. This study provides valuable insights into the optimization of PEGDA microfluidic device fabrication processes, enhancing their biocompatibility and usability for various biological and biomedical applications.In summary, our research highlights the importance of addressing cytotoxicity concerns associated with PEGDA microfluidic devices and offers a practical solution through the implementation of an IPA washing method, ultimately expanding the potential of these devices in diverse scientific and clinical applications.

Lake Bonneville's Legacy: Unraveling Genetic Drift and Diversity Loss in West Desert Bonneville Cutthroat Trout

March 21, 2024 12:00 AM
Authors: Tanner Van Orden, Dennis Shiozawa, Peter Searle, Ana Kokkonen, Paul Evans. Mentors: Paul Evans. Insitution: Brigham Young University. The Bonneville cutthroat trout (Onchorynchus clarki utah) is the only trout species native to the Northern and Southern Snake ranges in Eastern Nevada. Streams on the east side of both ranges flowed into Lake Bonneville 12,000 – 15,000 years ago when Lake Bonneville was at its maximum. As Lake Bonneville retreated, Bonneville cutthroat trout in these streams were left isolated. To better understand how Bonneville cutthroat trout in the study area are coping with a changing climate, we Investigated the genetic diversity of Bonneville cutthroat in the Northern and Southern Snake ranges and compared them to historic samples. We found highly differentiated cutthroat trout populations in close proximity to each other and a genetic diversity loss of up to 86.3% in the last 12 years.

Is this you? Foucauldian ethics in multifactor authentication

March 21, 2024 12:00 AM
Authors: Maren Archibald. Mentors: Jared Colton. Insitution: Utah State University. Two-factor authentication was in use as early as 1994 with a patent belonging to telecommunications company Ericsson, which described the tech as “an authentication unit which is separate from preexisting systems." Today, multifactor authentication (MFA) requires a user to prove their identity by way of their knowledge, through a password or one-time code; their possession, through a physical key; or their inherence, through biometrics like a fingerprint or an eye scan. The secure sign-in method has proliferated in recent years, but while significant time has been dedicated to refining it, little if any research has been done in relation to its ethical implications. In his scholarship on discipline, Michel Foucault writes of “examination that places individuals in a field of surveillance.” MFA is one such method of surveillance — various forms track users’ location data, common usage and login hours, and biometric information. In my presentation, I will apply Foucauldian ethics to show how MFA is uniquely situated among other forms of societal documentation because of its purpose. The very data that depersonalizes users into numbers is also meant to be so precise and personal that it is the only way to believe users are who they say they are. And beyond MFA’s treatment of individual users looms the widespread collapse of a distinction between privacy and security. These values are not incompatible, but organizations have implemented MFA in a way that requires users to sacrifice privacy in order to gain security. My research will show how MFA aggrandizes the power differential between users and tech giants and threatens the ability to simultaneously maintain privacy and digital identity.

Transdermal antiseptic products as a method to decrease skin bioburden prior to surgery

March 21, 2024 12:00 AM
Authors: Kiersten Gardner, Hannah Duffy, Abbey Blair, Nicholas Ashton, Porter Stulce, Dustin Williams. Mentors: Dustin Williams. Insitution: University of Utah. Transdermal antiseptic products as a method to decrease skin bioburden prior to surgeryKiersten Gardner(1,2), Hannah Duffy(1,2), Abbey Blair(2), Nicholas Ashton(2), Porter Stulce1(2), Dustin Williams(1,2,3,4)1 Department of Biomedical Engineering, University of Utah, Salt Lake City, UT2 Department of Orthopaedics, University of Utah, Salt Lake City, UT3 Department of Pathology, University of Utah, Salt Lake City, UT4 Department of Physical Medicine and Rehabilitation, Uniformed Services University, Bethesda MDIntroduction: Preoperative skin preparation (PSP) kits are used before surgery to prevent surgical site infection (SSI). These kits consist of alternating scrubs of alcohol and Chlorohexidine Gluconate (CHG) or Povidone Iodine (PVP-I). Transdermal antiseptic products like Ioban, Tegaderm, and Surgiclear are also used clinically to eradicate skin bacteria by releasing antiseptic over time. Despite these precautions, infections often occur, usually stemming from a patient’s endogenous skin flora. The bacteria causing SSI reside deep in dermal sweat glands and hair follicles, untouched by traditional PSP. To eliminate these bacteria, antiseptics must diffuse deeper into the skin at concentrations above the minimum inhibitory concentration (MIC). We screened FDA-approved topical antiseptic products using a modified Kirby Bauer Assay to assess bacterial kill over time. We hypothesized that extended use of topical antiseptic products prior to surgery would kill deep-dwelling skin bacteria. We tested the extended use of these products on pig backs in conjunction with a CHG PSP to evaluate remaining bioburden. Methods:We determined the minimum inhibitory concentrations (MIC) for CHG and PVP-I against three common skin bacterial strains. We then took 6 mm biopsy punches of Tegaderm, Surgiclear, and Ioban and placed them on fresh bacterial lawns daily for 3 days. We measured the zones of inhibition (ZOI). Lastly, we applied the products to the backs of 4 Yorkshire pigs (n=4 products per test). After 48 h, we removed the products, performed a PSP- CHG scrub, and excised skin sections underneath the products. We homogenized the skin and quantified colony forming units (CFU)/g tissue. We analyzed the outcomes statistically using a mixed effects linear regression to determine significance.Results:The average MIC values for CHG and PVP-I were 2 and 2,000 ug/mL for Staphylococcus aureus, respectively. The average 24 h ZOIs for S. aureus were 7.9, 22.4, and 10.1 mm for Ioban, Tegaderm, and Surgiclear, respectively. The average log10 reduction for the CHG PSP, Ioban, Tegaderm, and Sugiclear were 1.87 ± 0.232, 1.65 ± 0.192, 1.69 ± 0.222, and 1.77 ± 0.316 CFU/cm2, respectively. The p values between the CHG PSP and Ioban, Tegarderm, and Surgiclear were 0.491, 0.572, and 0.746, respectively. Discussion:The benchtop data indicated adequate antiseptic diffusion and kill. In the porcine model, however; the presence of any of the products resulted in a statistically insignificant log reduction. Extended use of FDA-approved transdermal antiseptic products does not appear to decrease the skin’s bioburden. It appears that the products are not releasing high enough concentrations of the antiseptic to kill bacteria.

Artificial black holes: are they a threat to humanity?

March 21, 2024 12:00 AM
Authors: Tate Thomas. Mentors: Alexander M Panin. Insitution: Utah Valley University. We wanted to see if accidentally creating mini black holes in high energy particle collisions posed a real threat to humanity. To do this, we calculated some properties of such a black hole, such as its life span, radius, density, and minimum energy required. We found that it is unlikely to exist, let alone destroy the planet. Furthermore, we calculated what would happen if it were to exist, finding that it would move through the Earth with little resistance and with a small amount of Earth matter absorbed. Depending on initial velocity, the black either quickly escapes Earth or would settle orbiting it with the orbit part of which passes via Earth. It is interesting that in a simplified model of Earth as of a sphere of uniform density, the inner part of the orbit of black hole is also elliptical (as the outer is) but not Keplerian - with Earth center not at the focus but at the center of another ellipse. In the case of small initial velocity when entire orbit is inside Earth, the period of such inner orbit is constant regardless of birth location and initial velocity of black hole. The goal of this presentation is to discuss the results of our calculations and to explore potential applications to our understanding of interaction of mini black holes with ordinary atomic matter.

Quantifying Approximation Errors in the Flash Thermal Diffusivity Measurement Technique Using High Fidelity Simulations

March 21, 2024 12:00 AM
Authors: Tage T Burnett, Jakob G Bates, Christopher R Dillon, Matthew R Jones. Mentors: Christopher R Dillon. Insitution: Brigham Young University. In recent years, modeling and simulation have become more prominent in solving heat transfer problems. The accuracy and predictive power of heat transfer simulations is limited by the quality of the thermal properties used within the model. Thus, one method for improving computational accuracy is measuring thermal properties more precisely. Additionally, increased precision of thermal properties benefits other aspects of engineering including design and analysis. This research focuses on quantifying approximation errors in the widely adopted flash method for measuring thermal diffusivity. The flash method leverages several approximations to make it simple and easy to use; however, these approximations do not reflect reality and introduce measurement errors. Understanding these errors is critical for developing high-precision thermal diffusivity measurement techniques.In the flash method, the top surface of a small, cylindrical disc of material is subjected to a short pulse from a laser or flash lamp and the time-dependent temperature at the opposite surface is recorded. The thermal diffusivity is calculated using those temperature measurements in combination with a mathematical model. The accuracy of the flash method depends upon the accuracy of the mathematical model. One common mathematical model is the Parker Model. This model assumes that all of the energy from the pulse is deposited in an infinitesimally thin layer at the surface of the material and negligible heat is lost to the environment. These assumptions simplify the model, making it easy to use, but introduce errors into the measured thermal diffusivity.Computational methods can quantify these inaccuracies. Factors including heat lost to the environment, the temporal profile of the laser pulse, and the spatial distribution of the deposited energy can be incorporated into heat transfer simulations. Higher fidelity mathematical models can also be developed to account for these complexities. This project includes these and other factors to make simulations as realistic as possible. Various mathematical models, such as the Parker Model and higher fidelity models, are then used to calculate the thermal diffusivity from the resulting time-dependent temperature profiles and their measurements are compared to the simulated material’s true thermal diffusivity. Repeating this process for several material types will allow the precision of the models to be analyzed for each case. This analysis will be summarized at the conclusion of this project, providing a framework for developing more precise thermal diffusivity measurement techniques.

Subtle Force Communication for Intuitive Human-Robot Co-manipulation

March 21, 2024 12:00 AM
Authors: Samuel Charles. Mentors: Marc Killpack. Insitution: Brigham Young University. Robots have an incredible potential to help humans in extreme or dangerous situations due to their significant and consistent durability, strength, endurance, replaceability, etc. However, humans and robots move very differently, leading to difficulties working intuitively with a robot partner when completing a task such as lifting a heavy object. We recently conducted studies in which human subjects moved a 60-lb table to several different positions in a room; we recorded force and torque data, along with many other aspects of the movement. In these studies of human-human co-manipulation, we noticed a trend during particularly difficult maneuvers; when lifting the table to high positions or acute angles, subjects switched their hand holds on the table’s handles. This was likely an easier method of holding the table, but it may have also communicated placement, stability, understanding, and strength to the other partner, leading to a smoother and more intuitive movement and experience overall. If this is the case, this data could be used to help a co-manipulation robot both effectively understand the subtle commands in human movement and intuitively communicate needed movement to the human partner. This is particularly useful in emergencies like natural disaster sites and war zones, in which immediate help is needed, but there is no time to troubleshoot an unclear or unintuitive robot.

Exploring the Differences Among Attachment Styles with Cognitive Appraisal and Emotional Suppression

March 21, 2024 12:00 AM
Authors: Rebekah Hakala, Moroni Black. Mentors: Todd Spencer. Insitution: Utah Valley University. Over the years countless studies have delved into the theory of attachment due to its influence in the field of child development. Attachment theory is the idea that the sensitivity of parents or caregivers to a child’s bids for attention affect how the child will bond in relationships (Bretherton, 1992; Wilson-Ali et al., 2019). The style of attachment that a child has can affect them long-term and may influence other relational and developmental characteristics (Kurth, 2013). Due to the influence of attachment, our study investigates the relationship it has with cognitive reappraisal. Cognitive reappraisal is the ability to regulate one’s emotional states and the idea that a change in these thoughts is necessary to change negative emotions (Troy et al., 2017; Clark, 2022). With its ability to process and regulate emotion, cognitive reappraisal is another influential characteristic to the human psyche. Our results and analysis of the relationship between attachment theory and cognitive reappraisal come from a quantitative survey.The purpose of the present study is to examine the relationship among attachment styles and Cognitive Reappraisal. Our sample consists of 411 married individuals. Participants completed The Relationship Questionnaire (RQ; Bartholomew & Horowitz, 1991) and Emotion Regulation Questionnaire (ERQ; Gross & John, 2003). Results of the one way Anova were significant F (3,407) = 3.36, p=<.01. There was a significant difference in levels of cognitive reappraisal among attachment styles. Secure attachment (M=29.95, SD = 6.41), fearful attachment (M=27.27, SD = 5.92), preoccupied (M=27.99, SD = 7.27), and dismissing (M = 28.78, SD = 7.54). Results of the Bonferroni Post-hoc analysis indicated a significantly higher levels of cognitive reappraisal than attachment styles (p.<.001). Results provide empirical support that secure attachment styles tend to be beneficial for cognitive reappraisal.

Ransomware Resilience and Ethical Dilemmas: A Comprehensive Review of Threat Landscape, Impact, and Mitigation Strategies

March 21, 2024 12:00 AM
Authors: Asmaa Alsharif. Mentors: Sayeed Sajal. Insitution: Utah Valley University. Ransomware is malicious software which restricts users from accessing their computer and personal data through encryption. Ransomware attacks target a variety of victims including individuals, organizations, businesses, and governments. Attackers take control of this sensitive data and hold it hostage until a ransom is paid. Whether or not ransom is paid, the attackers’ damage can be irreparable. It includes but is not limited to exposing personal information, identity theft, blackmail, permanent deletion or corruption of valuable data, and Distributed Denial-of-service (DDos). Moreover, the financial implications of ransomware attacks are substantial. Victims face not only the direct costs of ransom payments, but also the expenses associated with system restoration and the potential fines for data protection violations. Furthermore, an ethical dilemma emerges from the response to extortion, as victims must grapple with the moral implications of potentially supporting criminal activities by paying ransoms to recover their data. This raises questions about the broader responsibility of stakeholders in cybersecurity and their duty to protect data privacy. The first ransomware attack emerged in 1989 and since then, ransomware attackers have persisted as a cybersecurity threat, striking at the core of data privacy. This paper delves into the multifaceted impact of ransomware incidents on data security, current ransomware techniques and strategies, and the ethical dilemmas they raise.Because ransomware attackers are constantly evolving their methods, it is important to routinely review the current literature to fully understand the tactics and techniques used by these cybercriminals. This research paper will review, analyze, and synthesize the existing literature about ransomware. It is crucial for individuals and organizations to be proactive, understand the nature of the threat, and take precautions to protect themselves and their data. This study encourages further research and discourse on the multifaceted impact of ransomware attacks on data privacy and the pursuit for effective countermeasures.

MRSA induced biofilm clearance by bacteriophage and antibiotic.

March 21, 2024 12:00 AM
Authors: Rainey Hughes, Avalon Marker, Elizabeth Bouwhuis, Yeshaswini Dudde, Bryan Dopp, Scot Carington, Jared Nelson. Mentors: Daniel Clark. Insitution: Weber State University. Antibiotic resistance is a pressing concern within the medical community as bacteria's resistance to antibiotics is escalating alongside the increased usage of antibiotics. According to the CDC, there are close to 2.8 million antibiotic resistant infections every year, with about 35,000 of them resulting in death. This issue has prompted antibiotic stewardship programs in clinics and hospitals to avoid adding to the list of resistant bacteria. Staphylococcus aureus, including the formidable methicillin-resistant S. aureus (MRSA) strain, poses a grave threat due to its antibiotic resistance. The challenges stemming from this resistance become even more formidable when these infecting bacteria assemble into biofilms. Biofilms are robust, adhesive layers composed of bacteria and their extracellular matrices of polysaccharides, proteins, and DNA. In clinical environments like hospitals, biofilms frequently develop on medical devices such as stents, catheters, and IV lines, as well as on metal and plastic surfaces of medical equipment. These biofilms exacerbate antibiotic treatments due to incomplete eradication; the most resilient bacteria persist after exposure. There is evidence indicating that bacteriophages, which are viruses that will a target particular species or strain of bacteria, have the ability to encode depolymerases. These depolymerases can identify biofilms, adhere to them, and subsequently break down extracellular polymeric substances. Furthermore, bacteriophages can produce lysins, which induce bacterial cell death through cellular lysis. These characteristics can potentially render the bacteria more susceptible to antibiotics. The use of bacteriophages can also be beneficial when it comes to the concern of opportunistic infections. Due to its selectivity to specific bacteria, it can attack the target hosts and leave the natural flora intact.In our research, we have induced biofilms in our bioreactor. With these biofilms we have been able to test different concentrations of multiple antibiotics, including Vancomycin, Oxacillin, and Carbenicillin in combination with phage K at different concentrations. Our research is aimed at showing a synergistic relationship between phage K and antibiotics, that will allow a subinhibitory concentration of both, in combination, to induce a complete kill and clearance. We have measured this by evaluating bacterial growth via absorbance measurements at 600nm in a Tecan plate reader. We have also measured biofilm clearance using the plate reader and measuring fluorescence at 630nm with a biofilm tablet assay. It was found that a subinhibitory concentration of antibiotic alone did not induce a complete kill and clearing, and that a subinhibitory concentration of phage alone did not induce a complete kill and clearing. However, once these concentrations were used in combination with each other, the complete clearing and killing of MRSA was achieved, and furthermore, was achieved with the antibiotic that the staphylococcus aureus is resistant to. Leading us to believe that we have found a renewed use for a currently ineffective defense mechanism.

Efficiently and Accurately Simulating Coupled Nonlinear Schrödinger Equations with Exponential Time Differencing and Fourier Spectral Methods

March 21, 2024 12:00 AM
Authors: Nate Lovett. Mentors: Harish Bhatt. Insitution: Utah Valley University. Coupled nonlinear Schrödinger equations (CNLSEs) are an extension of the nonlinear Schrödinger equation (NLSE) that applies to multiple interacting wave systems. They occur naturally in many physical systems, including nonlinear optics, multi-component Bose-Einstein condensates, and shallow water waves. Solitons, which are self-contained, localized wave packets that preserve their shape and speed during propagation, are a significant application of CNLSEs. Solitons are prevalent in nonlinear systems and play a critical role in long-distance information transmission in telecommunications. Despite their widespread use in various fields, solving CNLSEs analytically is challenging, and numerical approximations are necessary. However, solving CNLSEs numerically is a difficult task because of their high nonlinearity.To overcome this challenge, in this presentation, we will introduce, analyze, and implement an established fourth-order Exponential Time Differencing scheme in combination with the Fourier spectral method for simulating one-dimensional CNLSEs. In order to check the performance of this method in terms of accuracy, efficiency, and stability, we will present simulation results on CNLSEs. Our results will consider single, two, and four soliton interactions for homogeneous Neumann, homogeneous Dirichlet, and periodic boundary conditions. The numerical results will show that the proposed method is able to preserve energy and mass for a long time simulation in soliton interactions, as well as preserve the expected order of convergence for the proposed method.

Rotational Dynamics of Thrown Food Items and Their Impact on Canine Catching Success

March 21, 2024 12:00 AM
Authors: Caleb Slade, Evelyn Davis, Michael Orr, Brevin Bell. Mentors: Vinodh Chellamuthu. Insitution: Utah Tech University. Our study examines a viral video featuring a dog named Fritz who consistently fails to catch thrown food items. This research aims to determine whether Fritz's inability to catch is a result of his owner's throwing technique or Fritz's own inherent clumsiness. To investigate this, we employ a mathematical model based on kinematic differential equations to analyze the rotational dynamics of various geometrical shapes that simulate the thrown food items. By pinpointing moments in the projectile trajectory where the food items are most easily caught, we provide empirically-based recommendations aimed at improving Fritz's success rate.

Power Scaling a Nd:YVO4 Laser for Use as the Optical Drive of a Long Wave Infrared Optical Parametric Oscillator

March 21, 2024 12:00 AM
Authors: Alexander Gibb. Mentors: York Young. Insitution: Utah Valley University. Our research group’s long term goal is to build a student-constructed nonlinear optical system to create a tunable source of longwave infrared (LWIR) photons for probing molecules for early detection of disease in human tissue. I previously developed a diode laser system as the optical pump for a 5 Watt Nd:YVO4 laser which was reported at UCUR in Feb 2023. However, recent nonlinear optical calculations for our optical parametric oscillator (OPO) show that we will need the average laser power from that Nd:YVO4 laser to be in the 7-8 Watt range. My work to power scale the Nd:YVO4 laser is described in this presentation.

A Gyroscopic System for Magnified Coherent Diffraction Imaging

March 21, 2024 12:00 AM
Authors: Tyler Daynes, Jair Gonzalez, Jeremy Tait, Josh Jumper, Ellie Purcell, Tyler O'Loughlin, Vern Hart. Mentors: Vern Hart. Insitution: Utah Valley University. Coherent diffractive imaging is a common method for resolving small objects such as cells in order to determine their morphology. In it's essence it takes the diffraction pattern of laser light attenuating through an object and computationally reconstructs them back into the image that the light goes through. On the downside resolution of these diffraction patterns resulting from CCD size and sensitivity can be poor resulting into a less than optimal reconstruction. We have set out to build a system that can magnify this diffraction pattern without distorting the original image of the pattern. We have done this by building our own rastering system that can magnify light on the far edges of our beam. It does this by taking images with a lens attached to the rastering camera. This also has a problem because when the camera moves our detected light quickly falls off the screen of the detector. To fix this we added a gyroscopic system to our camera and lens so that the incident light may hit the system asmuthally at every point on the raster. This in turn will provide a higher quality diffraction pattern for reconstructing in CDI.

Using Ecological Niche Modeling to better understand Pediomelum aromaticum, a threatened Utah plant

March 21, 2024 12:00 AM
Authors: Ian Eggleston, Ashley N Egan. Mentors: Ashley N Egan. Insitution: Utah Valley University. Ecological Niche Modeling (ENM) is a very useful technique that gives us insight into a species’ present and possible future ranges, habitats, and niches. ENM has applications within conservational biology as models can be used to understand the extent to which climate change may impact a species. Additionally, ENM can be useful for prospecting for and propagation of rare plant species. This project will use ENM to create predictive range models for a rare plant species, Pediomelum aromaticum, with the goal of defining an ecological niche, determining impact of climate change, and general conservation of P. aromaticum. Here, we will compare 19 bioclimatic variables using correlation analysis and ecological niche modeling to determine which are the most impactful on the range of P. aromaticum. Additionally, ENMs will be created using the MAXENT algorithm from historical and predicted future climate data. By comparing these models, we can hypothesize as to how climate change may impact P. aromaticum. Finally, models will be compared between predicted climate futures defined as shared socio-economic pathways or SSP. SSP models estimate the impacts of human interactions within the scope of environment, governments, and each other to estimate the impact of varying sets of human interactions as defined by modified global behaviors within humanity and the impacts on global climate change. Different ENM models will be created with different SSP climate models so that we can understand how actions taken by humanity right now may impact the critically imperiled species P. aromaticum.

Effect of Print Parameters on tensile and flexure strength of 3D printed plastic

March 21, 2024 12:00 AM
Authors: Baylee Schumacher, Ryley Horrocks, Divya Singh. Mentors: Divya Singh. Insitution: Utah Tech University. 3D printed plastics have gained immense popularity in the recent times given the direct integration with CAD based software platform as well as ease of manufacturing. In addition, use of 3D printed parts can be more economical and less labor intensive.However, the mechanical behavior of these plastics is not well defined. There are many factors that affect the integrity of 3D printed plastic – extrusion temperature, infill pattern and infill percentage being a few of them.In this work, authors have attempted to study the effect of these factors on the tensile and flexure (bending) strength of 3D printed plastics. Firstly, tensile and bending samples are prepared by varying on more of the following – extrusion temperature, infill patter and infill percentage. Further, the specimens are tested in a destructive manner for tensile and flexure strength following the standard tensile and three-point bending technique on a Materials Testing System. The results on the variation in the strength as a function of print parameters provides an insight on the importance of standardizing these parameters to maximize strength and minimize cost.Keywords: additive manufacturing, 3D printed plastic, tensile strength, flexure strength

Effect of a supernova explosion on the mechaincal and thermal stability of orbiting planets

March 21, 2024 12:00 AM
Authors: Alexander Panin, Benjamin Miera. Mentors: Alexander Panin. Insitution: Utah Valley University. Recent searches for extrasolar planets have brought a surprising discovery – almost any star seems to have a planetary system around it. We know that massive stars end their lives in a violent supernova explosion, during which an extremely large amount of energy (~3x10^46 J) is released from the star in a very short time. In this presentation, we analyze the effect of this explosion – primarily the impact of the neutrino flash, the gamma ray flash, and the expanding plasma shell - on the mechanical and thermal stability of an orbiting planet. Our calculations show that a planet's orbit can be significantly disrupted by the momentum of the exploding star shell (depending on the planet's mass and proximity to the host star), but the radiation pressure from the explosion has a much weaker effect. If a star loses too much mass to the expanding shell, any previously stable orbit will become unstable, causing the planets to escape. Additionally, we found that the gamma ray flash and the plasma shell incident on the planet can cause significant heating, while the neutrino flash would have virtually no effect. Also, if a star’s collapse is asymmetric then the star itself can leave the planetary system due to the momentum of the asymmetric neutrino radiation. The sequence of events during a supernova explosion and how they influence such a planet is discussed in the presentation.

Evaluating the role of LRRC1 in melanoma growth and metastasis

March 21, 2024 12:00 AM
Authors: Kylee Fernandez. Mentors: Gennie L Parkman. Insitution: University of Utah. Evaluating the role of LRRC1 in melanoma growth and metastasisThe development of brain metastases is a critical problem in Utah, regardless of the novel therapies created for melanoma. The melanoma mortality rates in Utah are 31% higher than the national average and the melanoma incidences are 80% higher. To lower these incidences, our research is aimed at investigating targets in melanoma that play a crucial role in brain metastasis and can be identified as therapeutic interventions.LRRC1 is a gene known as Leucine Rich Repeat Containing 1. LRRC1 is involved in early-stage adipocytic differentiation. Altered gene and protein expression of LRRC1 is observed in melanoma potentially due to the vital role LRRC1 plays in adipose stem cells that differentiate by adopting the phenotypic, biochemical, and functional properties of more terminally differentiated cells. To evaluate the effect of LRRC1 on melanoma growth and metastasis, we are using an established autochthonous in vitro and in vivo model of melanoma based on the RCAS/TVA avian retroviral system. The results of this study will have tremendous potential to contribute to the understanding of the genetics of this heterogeneous disease.

Bx42 is Required for Brain Development and is Linked to Microcephaly

March 21, 2024 12:00 AM
Authors: Adriana Bibo, Nicole Losurdo, Nichole Link. Mentors: Nichole Link, Cindy Greaves. Insitution: University of Utah. Microcephaly is a neurodevelopmental disorder characterized by occipital frontal circumference (OFC) more than two standard deviations below the mean. It can be accompanied by comorbidities including intellectual disabilities, seizures, and other developmental phenotypes. Microcephaly is attributed to malnutrition and exposure to toxins or infection during pregnancy, but genetic mutations are also a leading cause. To investigate the genetic mechanisms behind microcephaly, our lab collaborates with a physician who has completed whole exome sequencing for two hundred microcephaly patients. He identified potentially pathogenic human variants, which we are studying using Drosophila melanogaster as our model organism. We screened for loss of function phenotypes through RNAi knockdown of fly orthologs to determine if these genes are necessary for brain development. In our primary screen, we found that RNAi knockdown of Bx42 in neural stem cells or post-mitotic neurons causes significantly reduced brain lobe volume. In our current study, we are assessing potential causes for reduced brain lobe volume. We seek to determine if RNAi knockdown of Bx42 in neural stem cells or neurons affects cell number, proliferation, or death in developing brains.

Using Technician Statistics For Productive Animal Care

March 21, 2024 12:00 AM
Authors: Grace Moore. Mentors: Aaron Olsen. Insitution: Utah State University. AbstractAnimal care technicians for research labs have many responsibilities in order to maintain the integrity of a research project. However, it is difficult to determine what tasks will require most of a technician’s time and effort. Thus, it is proposed that tracking what each individual does during a given shift can allow supervisors and technicians to create an efficient schedule of how they will work and provide a standard for individuals to meet every day. This project consists of tracking in detail what an animal care technician does in a given “shift”, including observation hours, handling and restraining, working in different biosafety levels, cleaning and prepping caging, and changing the caging. This data collection, over several months of work, finds relationships between tasks, the frequencies of being completed, and the time they take. The key tasks of an animal care technician are observing, providing nourishment, maintaining clean environments for both the researchers and the subjects, and maintaining supplies and accurate records. Additionally, many hours are dedicated solely to observing the animals to ensure their health and safety. Moreover, cleaning and prepping of caging or supplies are completed more than half of the time during a given shift. Finally, working with a given species may require more time to complete a task (such as cage changing or cage preparation) compared to another species despite the task being the same. If each technician were to track their tasks and create a profile of personal statistics, they would be able to easily determine how long a task should take. Moreover, a supervisor would be able to determine if a technician is working more efficiently or even falling behind during daily tasks. Overall, these findings could be used to incorporate better time management or planning for institutions to know what more time or resources may need to be devoted to in order to maintain a safe environment, provide exceptional care for the subjects, and follow every protocol.

In the Depths of the Understory: Costa Rican Associations Between Ants and Coccoidea Unraveled using NGS DNA Barcoding

March 21, 2024 12:00 AM
Authors: Sylvia Lee, Ainsley Parkins, Rodolfo S Probst. Mentors: Rodolfo S Probst. Insitution: University of Utah. Mutualisms between ants and plants are ubiquitous interactions and have been evolving for over 100 million years. Studies have been done on systems wherein the plants provide nutritional resources for ants, but the dynamics of mutualistic interactions in environments where host plants do not provide obvious nutritional rewards continue to remain elusive, raising questions about their co-evolutionary histories. In these circumstances, associated fauna, such as mealybugs and soft scales (Hemiptera: Coccoidea: Pseudococcidae and Coccidae), serve as intermediaries of the association, providing honeydew (enhanced plant sap) as a main food source to their host ants. However, the identity of the insects involved in these associations and their co-evolutionary history with ants is poorly understood. By focusing on samples collected in Costa Rica from 33 colonies of the Neotropical plant-ant genus Myrmelachista (Formicinae: Myrmelachistini), we sequenced DNA barcodes (cytochrome oxidase subunit 1 [CO1]) using Oxford Nanopore Technology and employed Next-Generation Sequencing (NGS) for both the Myrmelachista ants and their associated fauna. We aimed to identify their taxonomy, phylogenetic relationships and identify unique interactions between ants and their associated fauna. We recovered DNA barcodes for eleven Myrmelachista species and seven putative species of mealybugs (n=5) and soft scales (n=2). For the seven putative species of Coccoidea, our DNA barcodes, when compared to available sequences from the NCBI database, recovered an average of 85% match similarity. The closest matches associated our putative species to Old World Coccoidea taxa, reinforcing the need for taxonomic studies of this superfamily for the Neotropical region. Each putative species of soft scales was found uniquely associated with two Myrmelachista species (M. flavoguarea and M. cooperi). For all eleven Myrmelachista species, five were associated with two putative mealybug species. One putative mealybug species was associated with five different Myrmelachista species; one was uniquely associated with M. nigrocotea. Same associations were found between the associated fauna of M. flavocotea and M. lauropacifica; M. haberi and M. RSP027; M. plebecula, M. meganaranja, and M. osa, respectively. These results suggest that there may be unique associations between some Myrmelachista species and their Coccoidea associates, unconstrained by the ant phylogeny. Our findings also provide insights on Coccoidea taxonomy, emphasizing NGS DNA barcoding as a tool to illuminate how ant-plant associations might have evolved.

Unveiling Cryptic Avifauna Diversity Using Nanopore DNA Sequencing: A Case Study in the Passerine Genus Emberiza

March 21, 2024 12:00 AM
Authors: Ainsley E Parkins, Sylvia Lee, Elizabeth J Heath, Thomas Petitjean, Kyle Cink, Kyle Kittelberger, Cagan Sekercioglou, Rodolfo S Probst. Mentors: Rodolfo S Probst. Insitution: University of Utah. Biodiversity loss poses a significant threat, requiring accurate species assessment and conservation strategies. Non-invasive and cost-effective techniques should be prioritized, especially when dealing with threatened vertebrate fauna. By focusing on cryptic Eastern European species within the genus Emberiza (Passeriformes: Emberizidae), we designed an affordable molecular pipeline (including DNA primers and bioinformatics) integrating DNA barcoding with Nanopore sequencing to address species boundaries and provide conservation information for avifauna diversity. We conducted non-invasive DNA extractions from individual feathers of 192 specimens collected in the Aras River Riparian Corridor (ARRC), an important ecological hotspot in Turkey. By targeting the cytochrome oxidase subunit I (CO1) region, our goal was to differentiate Emberiza taxa and identify potential cryptic lineages while using cutting-edge next-generation sequencing (NGS) of multiplexed specimens with portable Oxford Nanopore Technologies. Our focal study examined boundaries in Emberiza subspecies (E. shoeniclus shoeniclus and E. shoeniclus caspia) with subtle morphological differences, utilizing DNA barcoding and Nanopore sequencing. We obtained 182 Emberiza DNA barcodes. Clustering analysis recovered a paraphyletic assemblage (n=32) and a clade, the latter recovering majority of the barcodes (n=150), separated by at least 8% genetic difference. In both cases, we observed a mixture of barcodes from the nominal subspecies and Caspian subspecies, suggesting that cryptic morphological characteristics are not reflected in genetic separation. Our results also suggest putative cryptic Emberiza species, highlighting the importance of the ARRC for conserving avian diversity. We demonstrate that our pipeline, integrating real-time Nanopore sequencing with non-invasive DNA barcoding, can be used for conservation initiatives (particularly aiding cryptic species identification). This study expands our knowledge of avian diversity and highlights the potential of NGS DNA barcodes as a powerful tool for aiding conservation efforts amidst biodiversity loss.

Murine Model of Hepatitis Delta Virus-Associated Salivary Gland Impairment

March 21, 2024 12:00 AM
Authors: Alexander Romano, Matthew Hesterman, Rachel Hill, Melodie Weller. Mentors: Melodie Weller. Insitution: University of Utah. Sjogren’s Disease (SjD) is an autoimmune disease diagnosed by symptoms of reduced tear and saliva excretion, accumulation of lymphocyte foci in the salivary glands, and the occurrence of antibodies against Ro (SSA), La (SSB), and nuclear proteins. The cause of SjD is unknown, though previous studies have detected the sequence and antigens of Hepatitis Delta Virus (HDV) in the minor salivary gland acinar, ductal, and adipose cells of patients with SjD; without the typical presence of a Hepatitis B coinfection. In this study, murine models were transduced with Adeno-associated virus containing expression cassettes for Luciferase (control), small, large, or a combination of both small and large HDV antigens to evaluate the impact of HDV antigen expression on salivary gland function and SjD autoimmune disease development. After a ten- or four-month period, the models were analyzed. Findings included a significant increase of inflammation for samples expressing both small and large HDV antigens, a significant increase of anti-SSA(La) antibodies in samples expressing the short HDV antigen, and a correlation between increased overall inflammation and decreased overall saliva flow. Performing qPCR methods verified the amount of HDV in the submandibular glands and Illumina sequencing portrayed an increase in glycolysis and beta oxidation metabolism in models with detectible HDV sequence. The models showed significantly increased IgM expression in the HDV exposed murine models, without significant change of other antibodies. Future plans include an ELISA diagnostic assay to verify the antibody levels and further sequencing analysis. With this information we can build a better picture of the direct mechanisms of HDV-mediated changes in salivary gland dysfunction and determine the extent that HDV can inducing systemic SjD symptoms.

Optimization of Subcritical Water Hydrolysis of Microalgae Biomass for Clean Meat Production

March 21, 2024 12:00 AM
Authors: Bradley Lawson, Lukas Keller, Marshall Burrows, Sam Perkins, Emery Wheeler. Mentors: Ronald Sims. Insitution: Utah State University. Subcritical water hydrolysis (SWH) is a developing method of processing organic materials/waste without the use of acids and alkali materials. SWH lyses peptides differently than acid hydrolysis and can produce Maillard products, which have various effects in cell culture. In this study, a batch-mode pressure vessel with a semi-continuous sampling apparatus will be used to optimize temperature and retention time for the hydrolysis of Chlorella vulgaris biomass for the development of serum-free (or low-serum) cell culture media. Hydrolysis will be done at temperatures from 140°C to 300°C and retention times from 5 minutes to 30 minutes. The SWH products will be assessed for their general protein content, lipid content, bioactivity, and carbohydrate content. These efforts will be of use to Upside Foods in its efforts to create sustainable and ethical cultured meat products.

Using Past Ecosystems to Understand Modern Climate Change: A Case Study from Utah’s House Mountain Range

March 21, 2024 12:00 AM
Authors: Jane Damstedt, Kasey Cole. Mentors: Kasey Cole. Insitution: University of Utah. In this project, we are analyzing faunal remains recovered from Utah’s House Mountain Range in the Tubafore cave system to create a paleoecological baseline of life in that location over the past 1000 years. All animals have relatively consistent ecological tolerances and preferences, so comparing the data from the information obtained in this study with contemporary accounts of mammalian ecology in the same area will be useful in evaluating the role of anthropogenic climate change in mammalian ecosystems. In this project, I am identifying the animal remains to the lowest level of taxonomic classification possible to determine what kinds of species richness and environment were present at the time in which the animal was alive. Creating an accurate record of the animals found in this cave assemblage is critical because very little is known about the species richness of the Great Basin area. This data will then be stored and compared to modern zoological data, which came from online databases Actos and Vertnet. The information gathered from this project can be used to inform conservation and sustainability efforts aiming at preserving biodiversity in Central Utah’s Mountain Ranges.

Nonequilibrium Thermodynamics of Voltage-Gated Ion Channels

March 21, 2024 12:00 AM
Authors: Ada Cottam Allen, Mikhael T Semaan. Mentors: Mikhael T Semaan. Insitution: University of Utah. Regularly buoyed from thermodynamic equilibrium by complex and fluctuating environments, living systems must continually respond and adapt to external stimuli. Recent tools from stochastic thermodynamics place concrete energetic and entropic bounds on these processes, for systems arbitrarily far from equilibrium both in and out of steady-state conditions, and thus reveal mechanisms by which these systems absorb and dissipate energy to function. Here, we leverage these tools to simulate and calculate the thermodynamic signatures of several models of sodium and potassium ion channels---channels crucial to propagating action potentials in mammalian neurons---as driven by biologically-realistic action potential spiking protocols. Thus uncovering their detailed energetic responses to such complex environmental conditions, these results enable detailed comparison between the thermodynamic functionality of each channel type with driving one would expect in-vivo. When applied to competing models of the same channel, these tools also provide additional criteria for model selection; to this end, we close by calculating expected ionic currents, directly facilitating comparison with dynamically-driven patch-clamp experiments.

Impact of Inducible Depletion of Sequestosome-1 (p62) From Endothelial Cells On Intrinsic Arterial Stiffness

March 21, 2024 12:00 AM
Authors: G. Colton Gardner, Lynasi Gapelu, Sohom Mookherjee, Sihem Boudina, J. David Symons. Mentors: J. David Symons. Insitution: University of Utah. With the prevalence of cardiovascular disease increasing world wide and its precise mechanisms remaining elusive, the need for novel treatments is urgent. Autophagy is a conserved process whereby dysregulated intracellular proteins are escorted to the lysosome for recycling. Emerging evidence indicates that autophagy is important in maintaining endothelial cell (EC) proteostasis and function. My laboratory showed that autophagy repression in adult mice ECs produces arterial dysfunction, and indexes of autophagy are repressed in ECs of older mice and humans which display concurrent EC dysfunction. Sequestosome 1 (p62) tethers proteins and enables their entry into the autophagic pathway. The contribution from EC p62 to cardiovascular and metabolic function is unknown and experiments are needed to investigate this. Thus, p62 will be depleted from ECs of adult male and female mice (p62iEC-/-) via tamoxifen regimen, and results will be compared to animals wherein EC p62 is intact (CON). The efficacy and specificity of EC p62 depletion will be evaluated in ECs and vascular smooth muscle by qPCR and immunoblotting. Three adjacent 1 mm thoracic aorta sections will be obtained 14 days after the tamoxifen regimen. The central aorta section will be used to measure intrinsic mechanical stiffness by wire myography, with the other two used to find lumen diameter and intimal medial thickness. These measurements will help create Stress vs. Strain curves and the Elastic Modulus, which will be compared between the groups to show the differences caused by p62 depletion. We expect p62 depletion from ECs to increase intrinsic aortic stiffness.

A Metagenomic Analysis the Microbial Composition of Apis mellifera Pollen Preserves throughout the Foraging Season

March 21, 2024 12:00 AM
Authors: Sydney Larsen. Mentors: Joshua Steffen. Insitution: University of Utah. Pollen preserves are crucial to maintaining Apis mellifera’s hive health. This pollen provides bees with a source of protein, amino acids, lipids, and other nutrients that are vital for larvae development (Dharampal et. Al, 2019). In addition to providing these essential nutrients, bee collected pollen also provides the hive with an excellent source of external pollen-borne microorganisms. These microbes provide a variety of benefits including serving as a major dietary requirement for larvae, assisting in biochemical processes such as bee bread fermentation, and assisting in bee resistance to pathogens (Gilliam, 1997). Despite the importance that these organisms play on bee health, there is currently little research on how the microbial composition of bee foraged pollen changes throughout the foraging season in response to abiotic and biotic factors. Rapid advancements in DNA metabarcoding approaches and DNA sequencing technologies have made the assessment of hive level foraging patterns easily accessible. We attempt to leverage the benefits of these new approaches to characterize how microbial composition in pollen provisions changes in relation to shifts in foraging preferences. Here we describe general patterns plant foraging behaviors for two hives across a single foraging season. In addition, we describe the variability of microbial diversity associated with pollen across this same time frame. Our initial description plant and microbial communities present in pollen provisions suggest that pollinator foraging preferences play a significant role in pollen associated microbial communities. This will allow for further research into how the presence of specific beneficial microbes is affected by changes in climate, floral availability, pathogen presence, etc..ReferencesDharampal, P. S., Carlson, C., Currie, C. R., & Steffan, S. A. (2019). Pollen-borne microbes shape bee fitness. Proceedings of the Royal Society B, 286(1904), 20182894.Gilliam, M. (1997). Identification and roles of non-pathogenic microflora associated with honey bees. FEMS Microbiology Letters, 155(1), 1–10. https://doi.org/10.1016/s0378-1097(97)00337-6

A Glance into the Origin of Life through the Lens of the DNA Repair Enzyme MutY from the Lost City Metagenomes

March 21, 2024 12:00 AM
Authors: My Nha Quyen Tran, Cindy Greaves. Mentors: Martin Horvath, Cindy Greaves. Insitution: University of Utah. I have been studying the DNA repair enzyme MutY found at the Lost City thermal field 3000 feet deep in the Atlantic Ocean with conditions similar to those that may have shaped the origin of life. With no sunlight and very little oxygen, life at the Lost City is driven by chemical transformations in rocks at extremely high levels of pH and temperature. DNA in all organisms strictly follows base pairing rules in which A pairs with T and G pairs with C. We all think of oxygen as beneficial, but it can cause damage to DNA. Oxidized guanine (OG) violates the base pairing rules and pairs with A. This causes mutations, which can lead to changes in the genetic information. The mutagenic potential of OG was a challenge that had to be solved early in the emergence of DNA-encoded life. The enzyme MutY functions in suppressing mutations and therefore protects us from developing cancer by finding and removing A from OG:A mispairs. In my effort to replicate conditions at the Lost City so as to explore how the DNA repair enzyme MutY evolved to function in this strange environment I need to purify the enzyme. I used DNA cloning to attach the MutY-encoding genes to a soluble bacterial protein called GST that hopefully will make it easier to purify the MutY proteins. Encouragingly, these fusion proteins expressed well in bacteria and appeared to be soluble. I am now exploring different conditions looking for optimal enzyme activity, which I predict to be different from what familiar bacteria can tolerate. Basic science research on how DNA repair enzymes adapted to the strange environment at the Lost City may inform future translational applications to treat and cure cancer and thus ensure a healthy society in Utah.

Synthesis and testing of hydrophobicly-modified pyridyl-aza crown ethers as chelators of rare earth elements.

March 21, 2024 12:00 AM
Authors: William Lee, Rishab Nayak, Cecilia Knapp, Camila Soderholm. Mentors: Ryan Stolley. Insitution: University of Utah. Recent publications have shown pyridine carboxylate functionalized aza-crown ethers coordinate strongly to a number of rare earth elements. Considering their strong coordination, we have modified these crown-ethers with a number of hydrophobic moieties to allow for adsorption to non-polar substrates to enable packed bed isolation of these elements to address the broad use and limited availability of these elements.

Information Anatomy Over Partition Space

March 21, 2024 12:00 AM
Authors: Nathan Jackson, Ryan James, James Crutchfield. Mentors: Mikhael Semaan. Insitution: University of Utah. Symbolic dynamics allows for modeling---and designing for---the effects of imperfectly measuring a time series of data, by partitioning into a finite number of possibilities. The resulting time series of discrete symbols is then made especially amenable to information-theoretic methods for understanding its temporal structure and correlation. In particular, as long as the partitioning scheme is generating, the resulting estimations for entropy rate---the rate at which the process creates information---converge to a measure of chaos in the underlying system, a dynamical invariant.However, the entropy rate is not sensitive to what kind of generating partition: colloquially, an instrument must be at least accurate enough, but can be more fine-grained as desired. In contrast, its breakdown into a piece which affects future measurements (“bound”) and a piece which does not (“ephemeral”) depends quite dramatically on the choice of generating partition. We ask, then: is there a canonical partitioning scheme for which the full suite of information measures relate to dynamical invariants?To tackle this, we simulate the well-known tent and logistic maps, sweeping over all two-boundary partitions, calculating the full information anatomies for each. We find that ephemeral and bound information are extremized by the single-boundary coarsest generating partition, suggesting a canonical role for the simplest “good enough” instrument. The remaining multivariate measures, meanwhile, reveal hitherto-unseen structure in the process of imperfect measurement.

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

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

Infant Identity Among the Tiwanaku

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

Genomic Analysis of Male Reproductive Skew in Bornean and Sumatran Orangutans

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

The Relationship Between Sleep, Attachment, and Social Support

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

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

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

Assessing Risk Authoritarian Parenting and Adult Coping

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

The Effects of State Anxiety on Face Identification

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

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

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

Cryopreservation: The Chilly Future of Biobanking

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