Digital Commons Network^™

Open-Source Cubesat Flight Software And Simulation, James Gruber

Computer Engineering

An open-source FreeRTOS-based flight software framework for CubeSats, with an example flight software package and simulation demonstrating real-time attitude control.

Aerospace Fastener Installation Tool, Anthony I. Berghout, Matthew K. Eggers, Liam Dunsmore, Jose Pardo

Mechanical Engineering

Contamination, particularly in aerospace manufacturing environments, is a significant concern, especially with fastener designs that incorporate torque-rated breakaway pieces for easier installation. These breakaway pieces are also known as pintails. Howmet has tooling that can collect loose pintails during installation, but they have small capacities and are not ergonomic for aerospace technicians. Their current need is for a light and ergonomic tool capable of installing a wide variety of Ergo-Tech® fasteners while having a large capacity to collect pintails and improve aerospace manufacturing methods. For this Critical Design Stage, we have finalized a design that allows Pintails to pass through …

2-Axis Solar Panel Tracker, Danica Wong, Oliver Barnaal, Anton Orme

Mechanical Engineering

Solar panels generate energy from sunlight. To do this it’s important that they remain pointed at the sun throughout the day. The Cal Poly Micro Grid Lab runs a class that uses a student made solar panel and tracking mount as an instructional tool. This project is beginning to show signs of wear from outdoor use and is unable to run without constant input due to some significant design flaws. The lab needs a new version of the mount to be made that is significantly more reliable and easier to use.

Custom Low-Profile Vacuum Valve, Aiden A. Theocheung, Nate R. Greco, Gavin T. Weber, Nate A. Ferrari

Mechanical Engineering

In Autometrix’s proprietary gantry style cutting table, a vacuum pulled through a channel array creates suction to hold soft materials firmly in place. To provide modularity for their customers a unique valve must be designed to segment the transverse channels in two or more sections. The solution must use minimal fasteners, maximize longevity, prove affordable, and be easily manufacturable.

Kinetic, Wind-Driven Metal Sculpture, Irene Songhee Han, Aiden Brown Largay, Madeline Vang Xiong

Mechanical Engineering

The Interdisciplinary Senior Design Team “Flying Flora” from Cal Poly’s College of Engineering has been tasked with designing and building a wind-driven dynamic metal sculpture for the San Luis Obispo Botanical Garden. The botanical garden wants to fill a large, centrally located vacant space with a kinetic sculpture to attract and welcome visitors. The final design, as approved by the garden’s directors, features a large metal California poppy below a stained-glass and metal butterfly. The flower rotates smoothly in typical wind conditions, drawing the attention of visitors to the sculpture. The butterfly is stationary, positioned at an angle from the …

Aluminum Boat Rotation Fixture, Kevin W. Heiskell, Nathaniel M. Conway, James S. Knowles, Austin J. Kehl

Mechanical Engineering

Aluminum fishing boats are widely used for various water-based activities, including fishing, transportation, and recreation. Their lightweight construction makes them ideal for maneuverability, particularly in regions like Australia. However, the manufacturing process presents challenges, specifically the need to weld both the interior and exterior seams of the hull. As the boat’s weight increases during assembly, flipping it becomes difficult and potentially hazardous. Traditional methods such as cranes or forklifts are inefficient and pose safety risks. To address this, our team developed a rotating fixture that secures the boat at two connection points, one at the bow and one at the …

Blow Down Air Knife System, Gunnar Glickert, Jacob Hambel, Chris Jacques, Jackson Koempel

Mechanical Engineering

GAF is encountering a problem with their manufacturing line where fiberglass mats are produced as a base layer for roofing shingles. As the fiberglass mat comes out of the curing oven, there is a possibility that it will stick to the conveyor belt and follow along the return route if a loss of tension downstream occurs. When the fiberglass mat follows the return route, it wraps around the rollers causing substantial damage and downtime for the plant. The goal of this project is to eliminate that problem.

Scaffolded Integration: Aligning Ai Literacy With Authentic Assessment Through A Revised Taxonomy In Education, James Hutson

Faculty Scholarship

The accelerating prevalence of generative artificial intelligence in educational and professional spheres necessitates a reevaluation of when and how such technologies are introduced within pedagogical practice. The principal challenge for educators is not merely the imperative to prepare students for an AI-driven world, but rather to ensure that assessment practices remain authentic—providing an accurate measure of what students can independently achieve before leveraging the augmentation potential of intelligent systems. This article contends that the incremental introduction of AI, mapped onto a scaffolded framework aligned with a revised Bloom’s Taxonomy, constitutes a methodologically sound approach for maintaining academic integrity, fostering transferable …

Binary Document Filtering For Retrieval-Augmented Generation, Sreyan Saha

Master’s Dissertations

Retrieval-Augmented Generation (RAG) has become a popular technique to enhance Large Language Models (LLMs) with access to external information sources. However, the success of RAG systems critically depends on the relevance and quality of the retrieved documents. In particular, supplying irrelevant or noisy context can lead to degraded downstream generation quality. To address this, our project focuses on improving the document filtering stage in a RAG pipeline through binary relevance classification — deciding whether a retrieved document is suitable to include in the final context window based on its usefulness in directly answering the user query. We explore a wide …

How Long Can I Transmit? A Mobility Aware Mmwave-Based Uav Communication Framework, Shawon Mitra

Master’s Dissertations

One primary focus of next generation wireless communication networks is the millimeterwave (mmWave) spectrum, typically considered in the 30 GHz to 300 GHz frequency range. Despite their promise of high data rates, mmWaves su↵ers from severe attenuation while passing through obstacles. Unmanned aerial vehicles (UAVs) have been proposed to o↵set this limitation on account of their additional degrees of freedom, which can be leveraged to provide line of sight (LoS) transmission paths. While some prior works have proposed analytical frameworks to compute the LoS probability for static ground users and a UAV, the same is lacking for mobile users on …

Phenotypic Expansion Of Knobloch Syndrome Type 2 In An Individual With A De Novo Pak2 Variant., Elizabeth A Werren, Louisa Kalsner, Jessica M Ewald, Michael Peracchio, Cameron King, Purva Vats, Peter A Audano, Peter N Robinson, Mark D Adams, Melissa A Kelly, Adam P Matson

Faculty Research 2025

P21-activated kinase 2 (PAK2) is a serine/threonine kinase essential for a variety of cellular processes including signal transduction, cellular survival, proliferation, and migration. A recent report proposed monoallelic PAK2 variants cause Knobloch syndrome type 2 (KNO2)-a developmental disorder primarily characterized by ocular anomalies. Here, we identified a novel de novo heterozygous missense variant in PAK2, NM_002577.4:c.1273G>A, p.(D425N), by genome sequencing in an individual with features consistent with KNO2. Notable clinical phenotypes observed in this individual were global developmental delay, congenital retinal detachment, mild cerebral ventriculomegaly, hypotonia, failure to thrive, pyloric stenosis, feeding intolerance, patent ductus arteriosus, and mild facial …

Workplace Perk Or Pitfall? A Qualitative Study Of Genetic Counselors' Perspectives And Experiences With Workplace Genetic Testing., Elizabeth Charnysh, Katherine Hendy, Kerry Ryan, Anya E R Prince, W Gregory Feero, Alyx Vogle, Sarah Mccain, Alexandra Truhlar, J Scott Roberts, Charles Lee, Kunal Sanghavi, Wendy R Uhlmann, The Insight @ Work Consortium

Faculty Research 2025

Some employers offer genetic testing for increased cancer and cardiovascular disease risk, as well as pharmacogenetic variants, as a wellness benefit, which presents unique considerations for genetic counseling. Our ethical, legal, and social implications (ELSI) of genomics study, positioned in a post-positivist paradigm, aimed to qualitatively assess the perspectives and experiences of genetic counselors (GCs) who had counseled on workplace genetic testing (wGT). Semi-structured interviews were conducted with 18 US GCs who either worked in the wGT industry (i.e., role-directed wGT experience) or provided post-test counseling in a clinical setting (i.e., patient-directed wGT experience). Interviews were analyzed following the principles …

Comparative Genomics Reveals Common Diversity And Adaptation To Harsh Environments In The Arabian Peninsula Indigenous Chickens., Abdulwahad Assiri, Adriana Vallejo-Trujillo, Mohammed Al-Abri, Hussain Bahbahani, Faisal Almathen, Abulgasim Ahbara, Waleed Al Marzooqi, Abdulfatai Tijjani, Raman Akinyanju Lawal, Olivier Hanotte

Faculty Research 2025

Identifying genomic regions under selection is crucial for comprehending the evolutionary history of the domestic chicken. Arabian Peninsula (AP) indigenous chickens are mostly found outdoors, being reared alongside other livestock for production purposes. These birds show high resilience to extreme temperatures (hot and cold), typical of the desert environment. The selection pressures responsible for unique local adaptations in these birds remain largely unidentified. Here, we aimed to investigate the genome diversity and structure of 15 indigenous chicken populations including 13 populations from the AP (n = 5), Ethiopia (n = 6), and the People's Republic of China (n = 2). …

Placental And Cord Blood Dna Methylation Changes Associated With Gestational Diabetes Mellitus In A Marginalized Population: The Untold Role Of Saturated Fats., Fatima Ahmad, Sidra Aftab Uzair, Arun P Lakshmanan, Shaikha Alabduljabbar, Salma H Ahmed, Basirudeen Syed Ahamed Kabeer, Alexandra Katharina Marr, Tomoshige Kino, Tobias Brummaier, Rose Mcgready, François Nosten, Damien Chaussabel, Souhaila Al Khodor, Annalisa Terranegra

Faculty Research 2025

The role of DNA methylation (DNAm) and its modulation by dietary factors in gestational diabetes mellitus (GDM) remains underexplored, particularly in marginalized populations. This study investigates DNAm alterations in GDM-exposed cord blood and placenta and their association with maternal dietary quality and single nutrient intake in a low-income population from the Myanmar-Thailand border. A matched case-control design (GDM: n = 38, controls: n = 34) was selected from a Myanmar-Thailand pregnancy cohort. Dietary intake was assessed via 24-h recalls and analyzed using Nutritionist Pro, with dietary quality evaluated by the healthy eating index (HEI). DNAm was profiled in 72 cord …

Hiring Decisions Under Productivity Uncertainty: Risk Preferences And Inaccurate Statistical Discrimination In Nhl Entry Drafts, Chengyuan Hua, Brad Humphreys

Economics Faculty Working Papers Series

This paper analyzes firm hiring decisions under uncertainty about worker productivity. We exploit an exogenous September 15 cutoff date in the National Hockey League entry draft to estimate a sharp RDD and find evidence of risk aversion by teams when drafting players. Specifically, teams appear risk averse in early draft rounds, but risk neutral in later rounds, supporting model predictions by a prior study. Triple-differences results show inaccurate relative-age-based statistical discrimination in the draft, providing implications for team drafting strategies. We find suggestive evidence that experience drives this discrimination, and positive correlation be- tween accuracy of statistical discrimination and team …

Issue 13: Pulmonary & Critical Care Insider, Bharat Bajantri Md, Sarah Ellsworth-Hoffman Mls

Critical Care & Pulmonary

Pulmonary & Critical Care Insider Issue 13

Compiled by Bharat Bajantri, MD, and librarian Sarah Ellsworth, MLS for the clinicians of the Pulmonary and Critical Care team of Parkview.

The Pulmonary & Critical Care Insider newsletter was created by Dr. Bharat Bajantri, MD and Sarah Ellsworth, MLS in 2023 as a form of current awareness for current practice at our hospital, Parkview Health.

Topics: Original Study Summaries from early 2025 with clinical implications:

pGGNs thresholds, Phosphodiesterase-5 Inhibitors with COPD, TTIP ventilation, TAPSE/sPAP Ratio, Propofol, Triglycerides, & Pancreatitis, PEERLESS trial, Metagenomic NGS for SCAP, Termination of Resuscitation (TOR) Guidelines, Intermittent Fasting …

The Tomb Of Louis Of Mâle And The Materiality Of Brass In The Burgundian Netherlands, Douglas Brine

Art and Art History Faculty Research

The brass and stone tomb of Louis of Mâle and Margaret of Brabant, Count and Countess of Flanders, and their daughter Margaret, Duchess of Burgundy, formerly in St. Peter’s Church, Lille, is long destroyed but had a pivotal role in the history of Burgundian funerary sculpture. It was commissioned in 1453 by Louis’s great-grandson Philip the Good, Duke of Burgundy, although it was Duchess Isabella of Portugal who actually negotiated its contract with the Brussels brass founder Jacob van Gerines. Close examination of the circumstances of the tomb’s creation, notably Philip’s recent suppression of the Ghent revolt, illuminate the interrelation …

A Research Guide And Annotated Bibliography For The Comparative Study Of Lgbtqia+ Social Movements Across East Asia, San Lee

FIRE Fund Bibliographies

This bibliography includes literature on how LGBTQIA+ movements across East Asia have evolved through local histories, politics, and cultural understandings of sexuality. While many societies had pre-existing, non-Western concepts of same-sex relations, post-1990s democratization and global human rights discourse reshaped activism in distinct ways. Movements in places like the People’s Republic of China, the Republic of China (Taiwan), South Korea, Japan, and Hong Kong engage with nationalism, decolonial perspectives, and social norms to construct unique approaches to queer rights. The guide highlights the need to understand LGBTQIA+ activism through each society’s specific historical and political context.

Responsible Realism About Artificial Intelligence: How Ai Is Shaping Legal And Dispute Resolution Practice, Education, And Scholarship, John Lande

Faculty Publications

This article synthesizes the views of legal scholars examining how generative artificial intelligence (AI) is affecting legal and dispute resolution practice, education, and scholarship. They share a perspective of responsible realism – recognizing both the promise and the perils of AI. It is already reshaping how lawyers, neutrals, educators, students, and scholars work – and its influence will only grow.

The scholars identify clear benefits: broader access, greater efficiency, and new support for professional learning. They also warn of serious risks, including bias, deskilling, and erosion of judgment. Avoiding both hype and panic, they analyze developments, offer realistic strategies, and …

Implementing Un Sdg Auto-Tagging: A Practical Guide For Librarians, Kyle Morgan

Cal Poly Humboldt Library

No abstract provided.

Guidelines For Energy Technology Demonstrations, Ian M. Shapiro

SyracuseCoE

This document is intended to provide guidance to companies developing new products, researchers, organizations sponsoring product development, demonstration hosts, resident organizations, and policymakers. The guidelines were prepared to maximize the chances for success of energy technology field demonstrations. Guidance is provided for effective site recruitment, project scoping and design, installation, onsite research, and related work such as public communication and risk management, all in ways that fully engage demonstration hosts.

Library News June 2025, Research Medical Library

Library News 2025

• Responding to Peer Review
• A Little Dialogue about "dia-"
• Accessibility in Study and Canvas
• New LibGuide Helps Dermatologists Diagnose Skin Conditions in Patients with Skin of Color

Why Medicaid Is Addressing Homelessness With Section 1115 Waivers: A Critical Examination Of The United States' Federalist Mental Health System, Joshua Haas

Washington Law Review

Housing and health care are deeply interconnected, and their systemic relationship profoundly affects individual and societal well-being. Inadequate funding has undermined the American mental health system for decades, leading to gaps in care that have caused lasting harm to vulnerable individuals and society as a whole. This Comment examines the historical connections between homelessness and the American mental health system. It explores the benefits and criticisms of the United States’ federalist approach to health care, particularly focusing on Medicaid and its “section 1115 waivers,” which grant states flexibility to develop innovative, state-specific Medicaid programs. Recently, states began to utilize section …

Submittal Of Mixed Waste Landfill Annual Long-Term Monitoring & Maintenance Report, April 2024-March 2025 For Sandia National Laboratories/New Mexico, Epa Id Number Nm5890110518, June 2025, Sandia National Laboratories/Nm

Facilities-Units

The Department of Energy/National Nuclear Security Administration (DOE/NNSA) and Sandia National Laboratories /New Mexico (SNL/NM) personnel submitted the Mixed Waste Landfill (MWL) Annual Long-Term Monitoring and Maintenance Report for the April 2024 through March 2025 reporting period to the New Mexico Environment Department (NMED) in accordance with the requirements of Section 4.8.1 of the MWL Long-Term Monitoring and Maintenance Plan (LTMMP). The LTMMP became effective on January 8, 2014.

The MWL is a 2.6-acre Solid Waste Management Unit (SWMU 76) located in the north-central part of Technical Area III at SNL/NM that has undergone corrective action. As of March 13, …

Acquisition Strategy For Innovation Under Competence-Destroying Change: Empirical Study—Pharmaceutical Company's Biotechnology Company Acquisition, Joo Tae Sung

Dissertations and Theses Collection (Open Access)

In response to declining R&D productivity and successive patent cliffs, pharmaceutical companies are increasingly acquiring biotechnology firms to sustain innovation. These acquisitions often occur under conditions of competence-destroying change, where the acquirer's chemistry-based knowledge base does not overlap with the biotechnology expertise of the target, challenging traditional theories that emphasize absorptive capacity and knowledge similarity.
This study introduces therapeutic knowledge, defined as the acquirer’s expertise in specific disease areas, as a distinct and critical dimension that interacts with both chemistry-based and biotechnology-based knowledge. Using a dataset of 212 observations across therapeutic areas from 80 acquisitions, the analysis uncovers an inverted …

Community-Based Approaches For Strengthening Quality, Access And Utilization Of Maternal And Newborn Health Services In Kenya—Stakeholders Workshop Report, Population Council Kenya

Sexual and Reproductive Health, Rights, and Choices

No abstract provided.

Culturally Responsive Intimate Partner Violence (Ipv) Service Needs Among African Immigrant Women: Examining The Impact Of Cultural Norms And Psychosocial Barriers On Safety Perceptions And Help-Seeking Behaviors, Titilayo Ogunbambi

Dissertations

Intimate Partner Violence (IPV) remains a pervasive public health and social justice issue globally, with African immigrant women in the United States facing compounded challenges as they navigate cultural, structural, and systemic barriers, including migration-related vulnerabilities and attachment to cultural values that shape their decisions and experiences. Although formal IPV services exist, they often fail to address the lived realities and culturally specific needs of this population, leading to underutilization and barriers in seeking help. This qualitative study examines how cultural norms, psychosocial barriers, and systemic inequities influence safety perceptions and help-seeking behaviors among African immigrant women survivors of IPV. …

Adam Smith: Social Imaginary And Religion, Jan Van Vliet

Pro Rege

No abstract provided.

The Epidemiology And Burden Of Cardiovascular Diseases In Countries Of The Association Of Southeast Asian Nations (Asean), 1990–2021: Findings From The Global Burden Of Disease Study 2021, Gbd 2021 Asean Cardiovascular Diseases Collaborators, Veincent Christian Pepito

Ateneo School of Medicine and Public Health Publications

Background: The Association of Southeast Asian Nations (ASEAN) has undergone substantial epidemiological changes over the past three decades, characterised by a growing burden of cardiovascular disease. This study provides an epidemiological overview of cardiovascular diseases across ASEAN.

Methods: As part of the Global Burden of Diseases, Injuries, and Risk Factors Study 2021, we assessed the prevalence, mortality, years of life lost, years lived with disability, and disability-adjusted life-years (DALYs) of 12 cardiovascular diseases, stratified by age, sex, and location, for ten ASEAN member states (Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand, and Viet Nam) from 1990 to …

Spring Field Report, March–May 2025, W. Ross Silcock

Nebraska Bird Review

Perhaps the most important takeaway this spring is the continuing phenomenon of large numbers of species with early spring arrival dates. Although about half as many as 2024, there were 64 examples of either tied or new early arrival dates, most obviously of insectivores such as swifts, flycatchers, vireos, swallows, pipits, longspurs, and 10 warbler species. Among these, record or near-record early were Whip-poor-will, Black-necked Stilt, Marbled Godwit, Black Tern, Olive-sided Flycatcher, Purple Martin, Rock Wren, Gray Catbird in central, Spotted Towhee in north and west, and Hooded Warbler.

Following along logically perhaps with early arrival dates were a number …