Digital Commons Network^™

Dock7 Is A Novel Modifier Of Duchenne Muscular Dystrophy Pathology, Katherine English

ETDs from 2020-2029

Duchenne muscular dystrophy (DMD) is a progressive, x-linked neuromuscular disorder affecting 1/5000 male births every year. DMD results from mutations in DMD, a critical structural protein within the muscle. In the absence of Dystrophin, the muscle degrades, increasing inflammation, destabilizing the cell membrane and going through constant cycles of regeneration which depletes the stem cell population. Over time, muscle tissue is replaced by fibrosis and adipose tissue, leading to loss of ambulation, respiratory and cardiac failure leading to death by early 20s. The standard of care for DMD patients is corticosteroid treatment. However, gene therapies have recently emerged which present …

Minding The Body: A Mixed Methods Analysis Of Somatic Experiences During Therapeutic Psychedelic Use, Daniel Grossman

ETDs from 2020-2029

Somatic phenomena, including shaking, spontaneous movement, vocalization, and purging, are commonly reported during psychedelic-assisted therapy (PAT). However, despite their perceived importance to some users, their role in the therapeutic process has remained largely unexamined. This mixed-methods study provides the first systematic investigation of these experiences during therapeutic psychedelic use, with particular attention to observable bodily responses (OBRs) and release-like somatic experiences (RLSEs), defined as a subset characterized by sensations of physical discharge. An online retrospective survey (N = 286) assessed the prevalence of OBRs and RLSEs, and their relationships with body awareness, bodily dissociation, emotional breakthrough, and perceived therapeutic benefit. …

Middle School English Language Arts Teacher Perceptions About Literacy Self-Efficacy, Carrie Beth Buchanan

ETDs from 2020-2029

Historically, research has shown that teacher self-efficacy positively influences student achievement (Gibson & Dembo, 1984; Tschannen-Moran et al., 1998; Muijs & Reynolds, 2001). With the sudden shift to digital instruction during the COVID-19 pandemic and the changes in literacy practices and assessment, teachers have been required to implement new instructional strategies. Grounded in Bandura’s (1977) self-efficacy theory, my research explored how mastery experiences and teacher mindsets influence student success in this changing environment. This study employed an exploratory sequential mixed-methods design to investigate the perceptions of current middle school English Language Arts (MS ELA) teachers about their literacy self-efficacy. Data …

Finite Element Analysis Of Post Vs Threaded-Post Glenoid Baseplates In Reverse Total Shoulder Arthroplasty: A Comparative Study, Christopher Morgan

ETDs from 2020-2029

This study compared a standard‑post baseplate with a threaded‑post baseplate in reverse total shoulder arthroplasty (rTSA) to determine whether threaded central fixation improves micromotion and stress distribution. A finite element model of a left scapula with a commercially available rTSA system was created; the two designs differed only by the central post (standard press‑fit versus threaded). A 756 N physiological load was applied at 60°, 90°, and 120° of abduction. Outcomes included total and directional relative micromotion at the bone–implant interface and von Mises stress in the glenoid and baseplate. Total micromotion remained below the 150 µm osseointegration threshold for …

The Healthcare Transition Experiences Of Emerging Adults With Congenital Adrenal Hyperplasia, Leslie Noojin Pitts

ETDs from 2020-2029

Congenital adrenal hyperplasia (CAH) is a group of disorders characterized by enzyme deficiencies impairing adrenal hormone production and requiring lifelong management. Individuals with CAH experience increased morbidity and mortality due to the underlying condition, steroid exposure, and inadequate preventative care. Despite clinical guidelines recommending a structured healthcare transition (HCT), little is known about the HCT experiences of emerging adults with CAH. Understanding these experiences is critical for identifying practice gaps and developing interventions to improve health outcomes. This qualitative descriptive study explored the HCT experiences, challenges, and outcomes of emerging adults with CAH, as guided by the refined Social Ecological …

Navigating Future Careers And Life Purpose: The Effect Of Artificial Intelligence Experiences On Undergraduate Students At A Liberal Arts College, Shannon Kelly Schans

Dissertations

This interpretive phenomenological analysis examines how 13 undergraduate students at a liberal arts college construct meaning from their experiences with artificial intelligence technologies in relation to their career development and life purpose. Guided by an integrated theoretical framework combining Career Construction Theory (Savickas, 2012, 2013) and Transformative Learning Theory (Mezirow, 1991, 2000), the study addresses three research questions: how students describe their AI experiences across educational contexts, what connections they make between those experiences and their developing professional identities, and how they integrate AI experiences into broader narratives about work and purpose.

Data are collected through phenomenological interviews with 13 …

Enhancing The Metacognitive Thinking Of Middle-Grade Multilingual Learners: A Design-Based Research Study Leveraging Dialogic Teaching, Renee R. Burns

Dissertations

This study explores how dialogic teaching can enhance metacognition and self-efficacy among middle school multilingual learners (MLs) who face challenges with the academic language demands of literacy tasks. Using a design-based research (DBR) methodology, specifically formative experiment, the Metacognitive Dialogic Teaching Protocol (MDTP) was implemented over seven iterative cycles. The research questions were as follows: How do dialogic interactions impact metacognition in middle-grade MLs? How does Metacognitive Dialogic Teaching affect comprehension development in these students? And how does it influence their self-efficacy? The participants included six middle-grade MLs engaged in a Tier 2 literacy intervention who initially exhibited fake reading …

2–4 Ghz Reconfigurable Rf Filters, Jason Corn, Roman Junes

Electrical and Computer Engineering Senior Theses

Wireless communication systems employ radio frequency (RF) filters to isolate desired signals while suppressing interference and noise. Conventional RF filters rely on fixed-frequency architectures that restrict system operation in increasingly dynamic communication environments. This project features the design and optimization of a reconfigurable RF filter prototype using coupled microstrip resonators and electronic tuning components. The filter design demonstrates a tunable range of 2−4 GHz. Future design of reconfigurable microstrip architectures must take steps to maintain signal integrity across active elements. Power loss may be mitigated through the selection of higher quality factor components and less lossy prototyping materials.

Aged 539 Internship Report: Cal Poly Rodeo Media And Marketing, Anna Grace Durham

Agricultural Education: Graduate Internship Reports

This internship report examines the role of media and marketing within the Cal Poly Rodeo Program and highlights the integration of leadership, athlete development, and strategic communications in a collegiate athletics setting. Serving as the Media Manager for Cal Poly Rodeo, the internship focused on strengthening the program's digital presence, enhancing brand identity, and increasing community engagement, particularly surrounding the 2026 Poly Royal Rodeo. Through collaboration with University Administrators, the Officer Team, sponsors, and external media partners, comprehensive marketing campaigns were developed and implemented, resulting in significant increases in social media reach, audience engagement, and ticket sales. The project included …

Gender Relations Within 18th And 19th Century Art And How It Affects A 21st Century Learner, Sophie Lima

Theses

This study constructs a curriculum unit comprising five lessons in feminist art history for middle school learners in 5th-8th grade. Drawing on theories and concepts from feminist art history, visual culture, and inquiry in art education, this curriculum aims to address the scarcity of age-appropriate materials in feminist art history. There is a need for curricular materials that help learners critically analyze issues of gender, identity, and power conveyed through visual culture. The curriculum encourages middle-grade students to engage with three approaches to art analysis: formalism, iconography, and feminism. The organized unit focuses on inquiry, interpretation, comparison, production, and evaluation. …

Project Strata, Hobbs Hegedus, Antony Chen, Adrian Scancich, Peter Constantine Psefteas, Ryan Kreis Roth, Jack Douglas Mitchell

Mechanical Engineering

Project STRATA is a lunar sample acquisition and storage system developed in support of NASA’s Artemis mission objectives and the 2026 NASA RASC-AL competition. The overall mission concept utilizes a dual-rover architecture consisting of HARVEST, a sample collection rover, and SILO, a storage rover designed to preserve and organize lunar ice-regolith core samples collected from permanently shadowed regions (PSRs) near the lunar south pole. These regions contain scientifically valuable volatile-rich materials but present significant challenges due to extreme cryogenic temperatures, abrasive lunar regolith, and the absence of solar energy.

This report is a collection of all major work from the …

Custom Animatronic Puppet, Jake Schuman, Fredy Herrarte, Madison Reedy, Jackson Reynolds

Mechanical Engineering

This project involved the design, fabrication, and implementation of a custom audio-animatronic puppet modeled after Dr. Brian Davis for the California Polytechnic State University Mechanical Engineering Department. The objective was to create an expressive, lifelike character capable of synchronized speech, head movement, arm gestures, and seated-to-standing motion while demonstrating the integration of mechanical design, controls, manufacturing, and artistic fabrication.

The final system consists of an 18-degree-of-freedom animatronic platform utilizing servo-driven facial and upper-body actuation combined with a pneumatic standing mechanism. A modular aluminum and 3D-printed structural framework was developed using SolidWorks and validated through engineering analysis. Character shells were digitally …

Compressor Rotor Joints And Interference Fit Study, Isabela Jimenez, Aubrey Perez, Isaiah Guerrero, Jireh Velasquez

Mechanical Engineering

Solar Turbines need a comprehensive study on the effects axial and radial inference fits have on turbine compressor rotor stiffness. The aft weldment of the compressor has press-fit dowel pins and pilot joints to connect one weldment section to another. These fits need to be assessed through a finite element modal analysis, as well as practically tested through modal impacts to investigate how the fits affect the stiffness of the turbine’s connected weldments. The experimental data will be used to validate the finite element analysis (FEA) model.

Forged Carbon Fiber Adventure Project, Timothy Villafana, Victor Javadoff, Nathan Pittiglio, Cooper Starr

Mechanical Engineering

Forged carbon fiber compression molding remains a relatively under-researched manufacturing process. While there are documented processes online, the options are few and far between. Our sponsor and case-study user, Dr. Mello, tasked us with the goal of researching and developing a process for forged carbon fiber compression molding through means of modifying his prototype of a bike pack handlebar cradle (figure 3). This prototype will allow us to create tooling which will be used to manufacture a handlebar cradle that can withstand larger loads and more extreme environments using our developed process. A handlebar cradle is a structural support for …

Raytheon Rtx Autonomous Vehicle Competition (Avc) - Unmanned Ground Vehicle (Ugv), Bryant Jonathan Martinez-Bautista, Geovanni Lara, Jared Herrera, Jose Barrera

Mechanical Engineering

Raytheon RTX has four universities participating in a competition to successfully complete various challenges with a UAV and UGV including navigation and landing. The students must work collaboratively to integrate and manufacture a working UGV that is compatible with the UAV.

Our sponsor is Raytheon, more specifically Mr. Luis Esparza. Important stakeholders also include Cal Poly and the entire team of ME & CPE working on the project. Raytheon and Luis are looking for innovative solutions that can be applied for real world scenarios where UAV’s and UGV’s are applied. Cal Poly is gaining recognition, and the team is gaining …

Peltier-Based Hydration Accumulation Terminal (P.H.A.T.), Jenner Mucher, Ethan Pace, Renee Robolledo, Sabrina Luo, Taehoon Lee, Tarsem Pal

Mechanical Engineering

The objective of this project is to design an innovative potable water dispenser capable of safely delivering hot, ambient, and chilled water on demand for human lander missions. The system will support astronauts’ hydration and food rehydration needs while minimizing mass, power, maintenance, and contamination risks in microgravity and partial-gravity environments. Current spacecraft dispensers, such as the International Space Station (ISS) system, provide only heated water and have limited temperature control, cleaning accessibility, and microbial resilience. Building on NASA heritage designs and lessons learned from the ISS Potable Water Dispenser, this project advances a lighter, simpler, and more energy-efficient concept …

Mass - Modular Acoustic Suppression System, Julia Megargle, Michael A. Milner, Lucas Kaemmererer, Jonathan Corvera, Gabriel Choi, Emmi Cayer

Mechanical Engineering

The Modular Acoustic Suppression System (MASS) is a mass tuned damper that reverberates a membrane atop a cavity to absorb select acoustic frequencies produced by the Environmental Control and Life Support Systems (ECLSS) within NASA's Artemis Human Lander. The height of the reverberation chamber is adjusted to mitigate a range of varying tonal frequencies within the human lander.

Mechanical Jump Rope, Mary Harrington, Naail Lalani, Lucas Nathan, Guy Kalach

Mechanical Engineering

This Mechanical Jump Rope Senior Project was performed by four Mechanical Engineering students. This project was for the Cal Poly Kinesiology and Public Health Department, to be used by Cal Poly Friday Club, a collaboration between the San Luis Obispo Special Olympics and Kinesiology students. The purpose of the project was to allow those with different mental and physical abilities to learn and practice the timing of a jump rope at slow and adjustable speeds.

Electronic Bike Chopper, Caleb S. Bermack, Joey Lederer, Ethan Dea, Evan Herrera, Fred Agregado

Mechanical Engineering

Our sponsor, David Royce, built an initial e-bike chopper prototype and desired an improved, next generation version. Our team designed and manufactured an electric bicycle to achieve the rugged visual style of a classic chopper motorcycle while improving stability and usability. The team built a functional E-Chopper prototype using a 4130 steel frame, custom dropouts, a long front fork, wide rear tire, ape-hanger handlebars, and prebuilt electric components such as the battery, hub motor, controller, throttle, and display. The design focused on reducing excess weight, improving frame rigidity, and meeting California e-bike regulations.

Me3328 Buckling Lab, Willem Bitterolf, Samantha Flores, Jacy Gonsalves, Brooke Thompson

Mechanical Engineering

The objective of this senior design project is to design and develop an instructional buckling apparatus (hereafter referred to as a “buckling tester”) to enhance student comprehension of column buckling behavior through direct experimental investigation. The apparatus is specifically intended to bridge the gap between theoretical predictions and observed physical response of structural column members subjected to axial compressive loading. In particular, the system will allow students to examine how column behavior transitions between Euler’s elastic buckling theory, which governs long, slender columns, and the Johnson parabolic formula, which more accurately describes intermediate and shorter columns influenced by material yielding. …

Buell Motorcycle Extended Swing Arm, Joseph Camuccio, Riley Clark, Vincent Sclimenti, Tristan Turcios

Mechanical Engineering

Buell motorcycle riders, including our sponsor Rick Lasko, need a way to easily and affordably manufacture and replace their swing arms with extended versions (4”, 8”, 12”, and 16”) that maintain the stock Buell aesthetic while also meeting the safety standards required for performance-intensive applications, such as drag racing. Each extended swing arm must be just as safe, strong, and rigid as the original swing arm. Currently, there is no convenient and affordable solution to this problem, which is why our sponsor, Rick Lasko, wanted a validated, repeatable manufacturing process and design that would allow riders to safely and consistently …

Guitar Pickup Testing Fixture, Koen Graue, Ethan Rezentes, Max Schecter, Timothy Webb

Mechanical Engineering

Small guitar pickup manufacturers and hobbyists have an interest in developing guitar pickups with unique tonal characteristics and responses, but currently lack a reliable way to test these pickups and characterize their sound. I.M. Bohannon Mechanical Design approached the team to develop a solution to this problem. In response, the team researched current technologies, customer needs, and existing products on the market to define the scope and requirements for a guitar pickup testing fixture. This report documents the work completed during the project scope and definition phase of Cal Poly's senior project process. It discusses researched topics and existing solutions, …

Xylem: A Comparative Analysis Of Gpu Dispatch Pipelines For Large-Scale, Procedural Environments, Srinivas Sundararaman

Master's Theses

The real-time rendering of large-scale, procedural scenes presents a significant performance challenge for traditional CPU-bound rendering pipelines. The high volume of draw calls and the need for complex culling and level-of-detail management create bottlenecks that limit scene complexity and visual fidelity. This thesis investigates the evolution of GPU-driven rendering paradigms via the Xylem renderer within NVIDIA’s Donut rendering framework as a solution to these challenges.

A comprehensive benchmarking framework is developed to implement and quantitatively analyze three distinct rendering strategies for a procedurally generated, parameterizable, large-scale forest scene. The evaluated pipelines include: (1) traditional instanced rendering, (2) compute-driven indirect rendering …

Pet Mobility Project, John Shelby, Lily-Rose Jolie Bacon, Andrea Yasmine Reyes

Biomedical Engineering

The Pet Mobility Project, sponsored by Terri Smith and Jasper Jackson, is an initiative aimed at providing a custom mobility aid to a pet in the San Luis Obispo community. Amber Rappozo’s young German Shepherd, LeDoux, was selected as the project’s recipient. LeDoux suffers from hindleg weakness and, as a result, has limited mobility. This document provides a comprehensive overview of the Pet Mobility Project, detailing the motivation, background, and design approach behind the development of a LeDoux’s custom mobility aid.

Cardiac Twitch Force Measurement System, Tara Hoffman, Sebastian Carrascal Gómez, Julian Macdonald

Biomedical Engineering

The goal of this project is to develop a low-cost and accurate force measurement system and method of measurement to be used in the testing of grown cardiac tissue samples. The primary stakeholder in this project is Dr. Luke Perreault, a biomedical engineering professor at California Polytechnic State University San Luis Obispo who is studying grown cardiac tissue rings, and any of his student lab personnel. Other stakeholders include other researchers in the tissue engineering field who require a similar form of testing to the methods developed in this project.

This document will introduce the identified problem and background as …

Design And Implementation Of An Intelligent Wearable Health Monitoring System Using The Shimmer Platform, Christopher Tu, Rafael Martinez

Computer Engineering

This report goes over the wearable health monitoring system that we built that uses an activity classification system to tell what you are doing real time. We used a Shimmer3 sensor to collect accelerometer data and streamed it via Bluetooth to our laptops where we processed the data and ran a machine learning classifier to detect if someone is resting, walking or running. We collected our own data to train the Random Forest classifier that we used from scratch and ended with 98% accuracy. The system has a live dashboard implemented into it that shows sensor data and the current …

Los Banos Martial Arts Academy: A Web Platform For Structured School Communication And Enrollment, Vince Thanh Doan, Kayla Le

Computer Engineering

The Los Banos Martial Arts Academy communicates with its families through a combination of Instagram messages, WhatsApp group chats, emails, and phone calls that leads to missed messages and an unprofessional experience, made worse by an audience of parents who are not comfortable with technology. This project designed and built a centralized web platform that doubles as the academy’s public marketing site and as a private portal for enrolled families. The system uses invite-only, passwordless magic-link login, enforces structured communication rules that allow family-to-staff and group messaging but block private parent-to-parent messaging, and keeps a non-destructive data model so deactivating …

Autonomous Vision-Based Litter Collection Rover, Dante Michael Benedetti, Benjamin Scott Tavares, Nathan Heil

Electrical Engineering

This report documents the design, implementation, and testing of an autonomous litter-collection rover developed as a Senior Project Design Lab (EE 460/463/464) at California Polytechnic State University. The rover integrates autonomy, computer vision, embedded real-time control, mecanum-wheel omnidirectional mobility, and a two-degree-of-freedom robotic arm to detect, approach, and collect small ground-level litter such as bottles, wrappers, and paper fragments.

The system uses a two-layer compute architecture: an NVIDIA Jetson Orin Nano running ROS 2 for perception, SLAM, and path planning, paired with an STM32L4A6ZG microcontroller for real-time motor control and odometry. The robot is built on a multi-level aluminum frame …

Elevate Grill, Brady Alexander

Electrical Engineering

The Elevate Grill Senior Project is a Santa Maria style grill with an electrical lifting/lowering mechanism and temperature sensor feedback. The grill allows for a dynamically controlled cooking surface, able to be automatically set or manually set by the user. The grill’s user interface informs the user about the temperature in different zones on the grill and alerts the user when the target temperature is hit. Additionally, the user can program preset temperature ranges and apply them to the grill’s control system. The system incorporates safe failure modes in the event of a power outage and also allows the user …

Pcb Design For Place Cells Vlsi Chip, Gavin Reaksecker, Alex Krier, Joshua Lin

Electrical Engineering

This project presents the design and implementation of a 2 layer test-bench printed circuit board (PCB) for evaluating the functionality of a custom 40-pin VLSI integrated circuit. The objective is to create a reliable and portable platform capable of supplying configurable bias voltages, generating variable input signals, and monitoring both analog and digital outputs. The board integrates adjustable bias networks using potentiometers, digital and analog buffering stages, and optional battery supply operation. The VLSI device under test is mounted in dual-in-line (DIP) sockets to enable rapid replacement and repeated characterization. Dedicated test points are incorporated throughout the PCB to facilitate …