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Interpersonal Experiential Learning And Cancer Research Training Designed To Enhance The Motivation Of Participating Interns Utilizing Self-Determination Theory: A Longitudinal Study With Photovoice Methodology, Alex Vazquez-Cortes, Dierdre Mckay, Connie Tran, Bridget Bugla, Tiffany Bui, Kaisa Holt, Anthony Phan, Clare Hansen, Amy Lin, Amanda Braley, Lisa Marriott Phd May 2024

Interpersonal Experiential Learning And Cancer Research Training Designed To Enhance The Motivation Of Participating Interns Utilizing Self-Determination Theory: A Longitudinal Study With Photovoice Methodology, Alex Vazquez-Cortes, Dierdre Mckay, Connie Tran, Bridget Bugla, Tiffany Bui, Kaisa Holt, Anthony Phan, Clare Hansen, Amy Lin, Amanda Braley, Lisa Marriott Phd

Student Research Symposium

Historically, the underrepresentation of individuals from disadvantaged backgrounds, disabled, and diverse racial/ethnic groups in STEM fields is prevalent. Equity in stem fields allows for different perspectives and knowledge backgrounds allows for the cognitive diversity needed to tackle complex research topics. The Knight Scholars Program (KSP) aims to support underrepresented and disadvantaged high school and undergraduate students pursuing a research career by teaching them the tools they need to succeed. Spanning over three summers, KSP utilized the Self-Determination Theory (SDT) of motivation to create an inclusive learning environment and to strengthen the high schoolers' motivation to pursue research careers focusing on …


Pulse Modulation In Braided Pneumatic Actuators Mimics Contractile Behavior Of Biological Muscles, Mohamad Elzein May 2024

Pulse Modulation In Braided Pneumatic Actuators Mimics Contractile Behavior Of Biological Muscles, Mohamad Elzein

Student Research Symposium

Advancements in robotics and bioengineering aim to emulate biological muscle systems through robotic actuators, blending mechanical strength with biological adaptability. A lesser-explored aspect is mimicking the pulse-like control characteristic of biological muscles, which contract in response to action potentials from motoneurons, with muscle contractile force relying heavily on the timing between these potentials. This study explores the effect of pulse lengths and the gaps between pulses on braided pneumatic actuators (BPAs), which mimic the nonlinearity and dynamic response of biological muscles. It hypothesizes that artificial muscles utilizing pulse-based control will exhibit a similar force dependency on the intervals between pulses …


Evaluation Of Sleep Outcomes After Traumatic Brain Injury In Children Using Questionnaires And Actigraphy, Connie Tran, Sydney Weese, Cydni Williams Md May 2024

Evaluation Of Sleep Outcomes After Traumatic Brain Injury In Children Using Questionnaires And Actigraphy, Connie Tran, Sydney Weese, Cydni Williams Md

Student Research Symposium

Traumatic brain injuries are the result of a sudden external blunt force to the brain and can result in long-term complications or death. In pediatrics, it is the leading cause of acute and chronic sleep wake disturbances, as well as cognitive deficits, which can lead to a reduction in the quality of life. These impairments can later result in lowered performance in work and school settings or decreased psychosocial function. Although there is sufficient evidence that traumatic brain injuries contribute to is that it is unknown whether or not sleep wake disturbances contribute to an increase in the mentioned cognitive …


Deriving Analytical Design Constraints For Absolute & Relative Encoding Schemes In Functional Subnetworks, Cody W. Scharzenberger-Braet, Alexander Hunt May 2024

Deriving Analytical Design Constraints For Absolute & Relative Encoding Schemes In Functional Subnetworks, Cody W. Scharzenberger-Braet, Alexander Hunt

Student Research Symposium

As neural networks have become prolific solutions to modern problems, there has been a congruent rise in the popularity of the numerical machine learning techniques used to design them. While they are highly generalizable, numerical methods tend to produce networks that act as inscrutable “black boxes,” making it difficult to interpret their behavior. One solution to the problem of network transparency is to use analytical techniques, but these methods are underdeveloped compared to their numerical alternatives. In order to enhance the viability of analytical techniques, this work extends previous efforts to quantify the impact that non-spiking neural encoding schemes have …


Second Language Impacts On First Language Processing, Natalie Robison, Sarah C. Creel, Sarah Elkington, Judith Kelholt, Amy Lin, Carolyn Quam May 2024

Second Language Impacts On First Language Processing, Natalie Robison, Sarah C. Creel, Sarah Elkington, Judith Kelholt, Amy Lin, Carolyn Quam

Student Research Symposium

This line of research investigates attrition (loss of fluency) of native Mandarin language (L1) proficiency with increasing proficiency in English. English uses pitch to denote intonation (e.g., “it’s there?” versus “it’s there!”), while Mandarin uses pitch to indicate word meanings; e.g., /he/ means “drink” with a high, level tone, or “river” with a rising tone. The present study delineates between two alternative explanations for the prior finding (Quam & Creel, 2017) that English proficiency correlates with attrition of Mandarin tones, but not vowels. This pattern could be explained by 1) language assimilability (L1-L2 Assimilability Hypothesis), or 2) by tone being …


Recovery Of Black Carbon Concentrations In Burned Forests, Monica V. Zapata Villegas, Kelly E. Gleason May 2024

Recovery Of Black Carbon Concentrations In Burned Forests, Monica V. Zapata Villegas, Kelly E. Gleason

Student Research Symposium

Forest fires shed light absorbing particles (LAP), such as black carbon and burned woody debris, into snowpacks, darkening snow surface albedo, and advancing snowmelt timing and snow disappearance patterns for decades following fire. Although the role of LAPs in seasonal snow has been extensively studied in recent years, the spatiotemporal variability of LAPs and contributions to snowmelt relative to years since fire and burn severity is still unknown. In the Triple Divide region of western Wyoming, the headwaters of the Colorado, Columbia, and Missouri rivers, we quantified the spatiotemporal variability of forest fire effects on snow albedo, using geochemical analysis …


Toward The Development Of An Ultra-Fast, Bright Photoelectron Emission Source Using Tip Enhancement, Pei-Hsiang Yen, Erik J. Sanchez May 2024

Toward The Development Of An Ultra-Fast, Bright Photoelectron Emission Source Using Tip Enhancement, Pei-Hsiang Yen, Erik J. Sanchez

Student Research Symposium

With the advancement of technology, people are pursuing even higher-resolution analysis results from metrology tools. When results are provided with temporal information, one can add a new dimension to the results. This research involves the development of a new temporal electron source by utilizing tip enhancement, which necessitates the creation of a novel type of emitter that emits electrons on a femtosecond (fs) time scale. Due to the nature of the electron’s mass, under the influence of an electric field they move quickly. To achieve our goal is the design of a resonant nano antenna (or known as a nantenna) …


Describing Shen & Shen Ming Via A Hybrid Quantum Computational Model, Alex M. Cullen, Johnny Lemau May 2024

Describing Shen & Shen Ming Via A Hybrid Quantum Computational Model, Alex M. Cullen, Johnny Lemau

Student Research Symposium

Definitions for Traditional Chinese Medicine (TCM) terminology within the context of quantum biology (QB) have recently been proposed. These definitions aim to elucidate concepts such as qi meridians in TCM. Our study presents a hypothesis that seeks to provide an operational definition for Spirit (Shen) and Bright Spirit (Shen Ming) in TCM via a scoping review. We propose that Shen represents physical, phenomenological proto-consciousness/consciousness in the forms of computation, such as singular particles/bits/qubits, computers, organisms, or computational strategies, whereas Shen Ming may refer to emergent, quasi-physical meta-proto-consciousness/consciousness formed by coherent relationships of multiple orchestrated/integrated units of computation; manifesting itself as …


The Influence Of Soil Composition On Stormwater Retention And Runoff In Green Roofs At Portland State, Manuel Edrozo, Lily Green, Mitchell Mcdonald, Nicholas Olmos May 2024

The Influence Of Soil Composition On Stormwater Retention And Runoff In Green Roofs At Portland State, Manuel Edrozo, Lily Green, Mitchell Mcdonald, Nicholas Olmos

Student Research Symposium

The purpose of this study is to determine what soil composition is best for green roofs at Portland State; we aim to compare the current soil to the original substrate, to measure which composition retains the most water, and which filters out the most pollutants in stormwater runoff. Five different soil compositions were tested — original, current, layered mixed, solid mixed, and potting soils — and 1,000mL of high and low intensity rainfall (in/hr) was simulated for each of the mixtures. Water was allowed to filter through the soils for a predetermined time (10min for a high application rate and …


Relationship Between Trunk Cross-Sectional Area Growth And Water Stress In Garry Oaks (Q. Garryana): A Species Of Conservation Concern, John Cochrane May 2024

Relationship Between Trunk Cross-Sectional Area Growth And Water Stress In Garry Oaks (Q. Garryana): A Species Of Conservation Concern, John Cochrane

Student Research Symposium

In the Pacific Northwest, Quercus garryana (Garry oak trees) support over 627 native species. Garry oak natural habitat was originally maintained by indigenous practices but has been reduced to 5-10% of its range due to change in land management strategies. To support oak conservation, we need to understand heat and water affect the growth and physiology of this species. In this study, we created a fixed linear model of trunk cross-sectional growth with water stress (Ψ), photosynthetic water-use efficiency (δ13C), and leaf Carbon-Nitrogen ratio. We collected branch samples from the canopies of 47-64 mature Garry oaks in the …


Story Of Your Lazy Function’S Life: A Bidirectional Demand Semantics For Mechanized Cost Analysis Of Lazy Programs, Laura Israel, Nicholas Coltharp May 2024

Story Of Your Lazy Function’S Life: A Bidirectional Demand Semantics For Mechanized Cost Analysis Of Lazy Programs, Laura Israel, Nicholas Coltharp

Student Research Symposium

Lazy evaluation is a powerful tool that enables better compositionality and potentially better performance in functional programming, but it is challenging to analyze its computation cost. Existing works either require manually annotating sharing, or rely on separation logic to reason about heaps of mutable cells. In this paper, we propose a bidirectional demand semantics that allows for reasoning about the computation cost of lazy programs without relying on special program logics. To show the effectiveness of our approach, we apply the demand semantics to a variety of case studies including insertion sort, selection sort, Okasaki's banker's queue, and the push …


Promoting Student Engagement In Research In An Undergraduate Language-Development Course, Mitchell Kloer, Isabelle Trujillo, Teresa Roberts, Carolyn Quam May 2024

Promoting Student Engagement In Research In An Undergraduate Language-Development Course, Mitchell Kloer, Isabelle Trujillo, Teresa Roberts, Carolyn Quam

Student Research Symposium

This presentation will provide student perspectives on benefits of incorporating inclusive research activities within an undergraduate Speech and Hearing Sciences course. In Speech and Language Development in Children (SPHR 372U), instructor Quam incorporates a research project focusing on an issue of equity, inclusion, and social justice. One overarching goal is to reduce barriers of access to scientific research and increase engagement for college students, particularly those from historically underrepresented groups. The project is segmented into 3 steps that mirror literature review, critical analysis, and proposal. The project is collaborative, iterative throughout the term, and each step in the research process …


Stem Students And Faculty See Value In A Classroom Belonging Exercise, Kaisa S. Holt, Elizabeth A. Runkel-Baez May 2024

Stem Students And Faculty See Value In A Classroom Belonging Exercise, Kaisa S. Holt, Elizabeth A. Runkel-Baez

Student Research Symposium

Enhancing belonging in undergraduate STEM classrooms are pivotal for student success. This study examines a belonging exercise's implementation and impact in multiple STEM courses from 2017 to 2019. Faculty perspectives were gathered from a survey of 92 respondents, indicating a high level of perceived benefit (92%). Coded responses highlighted shared experiences and diversity mindset promotion. 30% explicitly mentioned benefits for both students and instructors. Additionally, 76% of faculty saw potential of belonging exercises in their own classrooms. It is important to promote using belonging interventions and also understand how STEM students perceive their value and utility. Three focus groups with …


Impact Of Testosterone Therapy On Voices In Trans-Masculine People: A Scoping Review, Samuel E. Hedine, Jeff Conn, Deanna Britton May 2024

Impact Of Testosterone Therapy On Voices In Trans-Masculine People: A Scoping Review, Samuel E. Hedine, Jeff Conn, Deanna Britton

Student Research Symposium

Treatment of trans people by speech-language pathologists (SLPs) dates back to at least the 1980s. However, the majority of early research on the voices of trans people focused on trans-women. More recently, the field of speech-language pathology has garnered more interest in the effects of testosterone therapy in trans-masculine individuals. The goal of this project is to review current research, and compile the known effects of testosterone therapy in the trans-masculine population on common acoustic indices of voice production, including fundamental frequency (pitch), decibels/sound pressure level (dB SPL; loudness) and cepstral peak prominence (voice quality). A scoping literature search was …


Multiscale Variability Of Heavy Metals In A Western U.S. Snowpack, Kelsey Hefner May 2024

Multiscale Variability Of Heavy Metals In A Western U.S. Snowpack, Kelsey Hefner

Student Research Symposium

Natural and anthropogenically sourced particulates are deposited from the atmosphere to landscapes via dry and wet deposition, making frozen winter snowpack a natural archive of atmospheric elemental composition. Wildfires in the Western United States are increasing in extent, duration, and severity, especially in alpine regions. Severe fires remove forest canopy and can impact how atmospheric elements are dispersed and stored across snow-dominated watersheds. We evaluated Al, V, Cr, Mn, Ni, Cu, As, Zn, Se, Mo, Cd, and Pb concentrations in 394 winter snow core samples. We collected samples in 2019 and 2020 from a chronosequence of eight forests that burned …


Computationally Assisted Mechanistic Analysis Of The Protonolysis Of A Pt–Me Bond, Clement Dasilva May 2024

Computationally Assisted Mechanistic Analysis Of The Protonolysis Of A Pt–Me Bond, Clement Dasilva

Student Research Symposium

Mechanistic study of the protonolysis of (cod)PtMe2 could give insight into the activation of C-H bonds by platinum because it is the microscopic reverse reaction. Two possible mechanisms for the protonolysis of dimethyl platinum complexes have been proposed, with experimental and computational data supporting the single step, SE2, over the multistep, SE(ox) mechanism. New experimental work from our group supports a multi-step mechanism with multiple acid molecules. In this work, the SE2 mechanism as well as a proposed SE(ox) mechanism were computationally modeled with a single equivalent of acid, TFAH, and two equivalents using density functional theory. The modeled pathways …


Reducing Switching Noise And Losses In Two-Stage Electric Power Converters, Abhijeet Prem May 2024

Reducing Switching Noise And Losses In Two-Stage Electric Power Converters, Abhijeet Prem

Student Research Symposium

Advancements in semiconductor devices are enabling the design of better electrical power converter systems. Wide Bandgap (WBG) switching devices from Silicon Carbide and Gallium Nitride can operate at high temperatures, voltages, and frequencies with faster turn-on/off periods, improving converter performance over silicon devices. However, WBG technology is still new, and the rapid switching transitions of these devices lead to issues such as voltage overshoots, ringing, and electromagnetic interference, which need to be addressed for widespread adoption. This work introduces a new control method for reshaping the switching voltages, which overcomes the disadvantages of fast transition time without increasing the system's …


Impact Of Intersecting Vulnerabilities On Functional Outcome And Health-Related Quality Of Life After Traumatic Brain Injury: A Prospective Cohort Study, Rekesh Subedi, Tatiana Hoyos-Gomez, Luis Tinoco-Garcia, John Cervantes Cervantes May 2024

Impact Of Intersecting Vulnerabilities On Functional Outcome And Health-Related Quality Of Life After Traumatic Brain Injury: A Prospective Cohort Study, Rekesh Subedi, Tatiana Hoyos-Gomez, Luis Tinoco-Garcia, John Cervantes Cervantes

Student Research Symposium

Traumatic Brain Injury (TBI) is a critical public health issue that disproportionately affects select vulnerable populations, including race/ethnic minorities, low-income individuals, and those without health insurance. Despite high incidences of TBI and its considerable impact on morbidity and mortality, research is limited in addressing how the intersectionality of vulnerabilities contributes to outcomes post-TBI. This literature review aims to synthesize existing knowledge regarding Social determinants of health (SDH) on TBI outcomes, focusing on functional recovery and health-related quality of life (HRQOL). This study will use a prospective cohort research design where TBI patients at Oregon Health and Science University (OHSU) will …


Exploring Factors That Contribute To Stem Transfer Student Sense Of Belonging, Brittney R. Gallant, Cate Pocitari May 2024

Exploring Factors That Contribute To Stem Transfer Student Sense Of Belonging, Brittney R. Gallant, Cate Pocitari

Student Research Symposium

There is an ongoing disconnect between the number of students who enter college intending to earn a STEM degree and the number of students who persist to degree, this is particularly true for transfer students. Sense of belonging has been named as a STEM persistence factor, yet how that belonging develops for transfer students is largely unknown. Here we used a mixed-methods design to explore the experiences of STEM transfer students at PSU (n=38). Participants completed a survey prior to participating in an interview. The survey and interviews explored their science identity, sense of belonging, and involvement in STEM-related activities. …


Histone Changes As A Response To Lactic Acid Selection In Cells Of Austrofundulus Limnaeus, Lori Tran, Jason Podrabsky, Chelsea Hughes May 2024

Histone Changes As A Response To Lactic Acid Selection In Cells Of Austrofundulus Limnaeus, Lori Tran, Jason Podrabsky, Chelsea Hughes

Student Research Symposium

The killifish Austrofundulus limnaeus is an extremophile native to small temporary ponds of Venezuela. Normal embryonic development of A. limnaeus is segmented into up to three stages of metabolic depression (diapause), and both developing and diapausing embryos can survive long bouts of the complete absence of oxygen (anoxia) by using anaerobic metabolic pathways. While there has been much focus on how mutations in DNA drive evolution, environmental stress can cause heritable changes to histone post-translational modifications (hPTMs) in multiple species. However, this evolutionary role of hPTMs has never been studied in A. limnaeus. Additionally, the possible evolutionary role of extracellular …


Textural Investigation Into Rapid Welding Transitions In The Tuff Of Leslie Gulch Along Succor Creek At The Mahogany Mountain-Three Fingers Rhyolite Field, Southeastern Oregon, Alicia J. Martinez-Garling, Martin J. Streck May 2024

Textural Investigation Into Rapid Welding Transitions In The Tuff Of Leslie Gulch Along Succor Creek At The Mahogany Mountain-Three Fingers Rhyolite Field, Southeastern Oregon, Alicia J. Martinez-Garling, Martin J. Streck

Student Research Symposium

The Mahogany Mountain-Three Fingers Rhyolite Field (MM-TFrf) in southeastern Oregon, associated with mid-Miocene rhyolite activity and Columbia River flood basalts, has been the subject of geological scrutiny. Previous studies proposed separate origins for the tuff of Leslie Gulch (LGT) and Spring Creek, but Benson and Mahood (2006) suggested a single ignimbrite event at 15.8 Ma, prompting a reassessment of MM-TFrf's history. This research focuses on LGT, investigating textural disparities between welded and non-welded tuff formations. Petrographic examinations delve into the transformation stages of pyroclastic tuff deposition, revealing the dynamic influences of volcanological and magmatic processes on welded and non-welded tuff …


Observing Orobanche Uniflora Parasitism Of Four Sedum Species In Relation To Soil Composition, Devin J. Forest-Hines, Sophie Wille, Noah Flick, Maxxie Barr May 2024

Observing Orobanche Uniflora Parasitism Of Four Sedum Species In Relation To Soil Composition, Devin J. Forest-Hines, Sophie Wille, Noah Flick, Maxxie Barr

Student Research Symposium

Sedums are commonly selected for green roof applications due to their horizontal growth, heat and drought tolerance, water-storage capacity, and heat absorption. A potential threat to sedum health is the presence of parasitic Orobanche. Orobanche are a genus of parasitic plants that extract nutrients, water and carbohydrates from its host via root attachments. This study seeks to investigate Orobanche parasitism on the four most abundant sedum species on a Portland State University green roof in relation to soil composition. Four sedum species were propagated in clear plastic compact-disc (CD) cases containing either mineral substrate, Miracle Gro, or a seedling mix, …


Feesability Of Laryngeal Endoscopy Simulation Labs In Student Training: A Scoping Review, Anna Thut May 2024

Feesability Of Laryngeal Endoscopy Simulation Labs In Student Training: A Scoping Review, Anna Thut

Student Research Symposium

Fiberoptic Endoscopic Evaluation of Swallowing (FEES) involves passing a flexible endoscope through the nose and down the throat to provide a detailed view of the throat, airway, and vocal folds. With the scope in place, people can eat and drink, allowing the clinician to evaluate for safe swallowing. Speech-Language Pathologists (SLP) use FEES for diagnostic evaluation and to gauge therapy progress and effectiveness. Simulation training on a low or high-fidelity model may provide a bridge for SLP graduate students to gain competency before being introduced to FEES in a clinical setting. This review aims to gather evidence on the use …


Wildland Urban Interface Growth And Development Potentials In Deschutes County, Samantha Hall May 2024

Wildland Urban Interface Growth And Development Potentials In Deschutes County, Samantha Hall

Student Research Symposium

Policy can and has been used as a tool to reduce the risk communities experience from natural hazards by limiting development in areas most vulnerable. How and where development occurs directly influences the amount of risk a community experiences from natural hazards like hurricanes, earthquakes, flash floods, and wildfire among others. Development patterns that contribute to increased wildfire risk mostly occur within the wildland urban interface, a land use type where development is at the fringes or intercept of wildland areas and is more flammable due to surrounding vegetation, slope, local climate, and other factors. For this research, Deschutes County …


Analyzing Intensifying Storm Events Correlation To Landslide Frequency In Portland’S West Hills, Aurora Villa Juan May 2024

Analyzing Intensifying Storm Events Correlation To Landslide Frequency In Portland’S West Hills, Aurora Villa Juan

Student Research Symposium

As the Pacific Northwest climate changes, extreme weather, such as intensifying storms, and a shift in the type of precipitation experienced with warmer winters causing more precipitation to fall as rain instead of snow, may lead to an increased frequency of landslides. There have been several recent landslides in Portland, noticeable to the public, particularly in areas of high elevation such as Council Crest, which stands at 1,073 feet. Additionally, residents of neighboring homes have observed changes in the landscape, including those on private properties. To better safeguard both public and private property, comprehensive research and mitigation efforts are required. …


Characterization Of Chopped Carbon Fiber Reinforced Composites Produced Using Fused Deposition Modeling, Jonathon Tran, Rachel Shubella May 2024

Characterization Of Chopped Carbon Fiber Reinforced Composites Produced Using Fused Deposition Modeling, Jonathon Tran, Rachel Shubella

Student Research Symposium

Fused deposition modeling (FDM) is an additive manufacturing (AM) process which can create parts with complex geometries in their final shape without need for additional specialized tools or devices. The FDM process builds parts by adding material layer by layer only where it is needed, saving energy, costs, production time for complex parts, and minimizing waste. Fiber reinforcement can significantly enhance the mechanical properties of a polymer material and depends significantly on the fiber length distribution and fiber orientation distribution of the final part. In this research, we investigated the various infill patterns of FDM printed Markforged onyx which is …


Comparative Life Cycle Assessment Of Recycling Processes For Perovskite Solar Cells, Juan P. Herrera, Jules Freeman, Achyuth Ravilla, Ilke Celik May 2024

Comparative Life Cycle Assessment Of Recycling Processes For Perovskite Solar Cells, Juan P. Herrera, Jules Freeman, Achyuth Ravilla, Ilke Celik

Student Research Symposium

Perovskite solar cells (PSCs) have emerged as a promising option for solar energy generation. However, it is essential to consider the environmental impact of these innovative photovoltaic (PV) technologies as the industry moves towards commercialization. Researchers are currently exploring ways to recycle PSCs to recover valuable materials and reduce their environmental impact at the end of their life. To ensure the sustainability of PSCs, this study evaluates and compares the environmental impacts of five recently developed recycling approaches. The Tool for Reduction and Assessment of Chemicals (TRACI) method was utilized to measure environmental impacts in categories such as acidification (kg …


Selection During Reproduction In Mimulus Guttatus, Desmond C. Willson, Karla De Lima Berg, Mitch Cruzan May 2024

Selection During Reproduction In Mimulus Guttatus, Desmond C. Willson, Karla De Lima Berg, Mitch Cruzan

Student Research Symposium

A lack of genomic studies examining gametophytic selection and selective embryo abortion—which occur during the reproduction of angiosperms—leaves questions regarding the adaptive and evolutionary effects of these processes. Analyzing deviations from Mendelian segregation offers an avenue for identifying loci targeted by GS and SEA, and their contributions to purging of genetic load. However, other selective processes such as meiotic drive and cytonuclear interactions, as well as pollen and ovule abortion, can cause distortion. To distinguish the effects of GS and SEA from other causes of distortion, we will perform reciprocal crosses between highly homozygous and highly heterozygous individuals of Mimulus …


Hide & Cru-Seq: Investigating Potential Crucivirus Hosts With Fluorescently Labeled Protein, Marcell Devaune Richard, Nacho De La Higuera, Jono Abshier, Ken Stedman May 2024

Hide & Cru-Seq: Investigating Potential Crucivirus Hosts With Fluorescently Labeled Protein, Marcell Devaune Richard, Nacho De La Higuera, Jono Abshier, Ken Stedman

Student Research Symposium

Cruciviruses are DNA viruses that contain a capsid protein that shares striking similarities to capsid proteins from RNA viruses. Formerly known as “RNA-DNA hybrid viruses”, this novel type of viruses suggest gene exchange between unrelated RNA and DNA viruses. However, the hosts of cruciviruses remain unknown. To investigate this groundbreaking virus genome further, utilization of the predicted viral host recognition domain (P-domain) fused to a thermal green protein and a histidine tag, allows investigation of crucivirus hosts in environments where these viruses have been discovered. Using cruciviruses that have been found in soil samples on the PSU campus, along with …


S100b As A Protein Marker For Intracranial Hemorrhages, Anthony Phan May 2024

S100b As A Protein Marker For Intracranial Hemorrhages, Anthony Phan

Student Research Symposium

This study aims to evaluate the effectiveness of S100B as a protein marker for patients that are clinically diagnosed with an Intracranial Hemorrhage (ICH). This study enrolled patients that present to the hospital as a trauma activation consistent with a traumatic brain injury (either a blunt or penetrating traumatic mechanism) who are 15 or older, GCS of 12 or lower, and received the placebo arm of the TXA drug. The S100B level of patients will be measured through an Enzyme-Linked Immunosorbent Assay (ELISA). After the data collection, a statistical test will be conducted to determine the level of significance for …