Digital Commons Network^™

Nonlinear Control Of A Ciws-Style 2-Dof Turret, Ryan Baur, Ethan Wang, Nilay Kant

Mechanical and Aerospace Engineering Faculty Research & Creative Works

This paper develops and compares multiple control strategies for a two-degree-of-freedom CIWS (Close-In Weapon System)-style turret tracking rapidly maneuvering airborne targets. A simplified nonlinear manipulator model with realistic actuator torque limits is used as the plant. Five controllers are implemented: a baseline PID (Proportional-Integral-Derivative) controller, a feedforward PID, a Kalman-filter-assisted PID, and two feedback-linearized designs using PID and LQR (Linear-Quadratic-Regulator)-based surrogate dynamics. Controller performance is evaluated on increasingly aggressive three-dimensional target trajectories under varying sensor noise. Results show that PID-family controllers achieve competitive tracking accuracy while remaining torque-efficient and largely unsaturated. Feedback-linearized controllers improve tracking accuracy only when sufficient actuator …

Environmental Risk Modeling For Heavy Rainfall Events In Jeddah City Between The Years (2000-2025), Amina Atallah Al-Rehaili

University of Tabuk Journal for Humanities and Social Sciences

This study models the potential environmental risks associated with heavy rainfall events that affected Jeddah, Saudi Arabia, between 2000 and 2025. A descriptive-analytical approach based on Geographic Information Systems (GIS) was employed to analyze spatial patterns of rainfall and assess their environmental implications. The methodology included a literature review, collection of daily rainfall data, identification of extreme rainfall events, and spatial analysis of rainfall distribution across the city. A suitability model was then developed to determine areas most vulnerable to heavy rainfall hazards. Results indicate that heavy rainfall events and their environmental impacts on residents and property correspond to 70.37% …

Characterization Of The Genetic Diversity Of Curlyleaf Pondweed (Potamogeton Crispus L.) In The Contiguous United States And Canada And Analysis Of Possible Hybrid Potamogeton Crispus Lineages, Mallory M. Kaiser

All Graduate Theses, Dissertations, and Other Capstone Projects

Curlyleaf Pondweed (Potamogeton crispus L.) is a prolific invasive species that has spread across the United States and into parts of Canada since its introduction to North America in the 1840s. It causes extensive economic and environmental damage across its invasive range, and its control and eradication are of utmost importance to agricultural, ecological, recreational, and transportational stakeholders. Developments in molecular ecology and invasive management have found that genetic diversity and hybridization of aquatic macrophytes may affect their susceptibility to herbicide treatments, and genotype or lineage identification are important control variables that must be considered in field and …

Transformed, Not Resolved: Ethnic Federalism And The Politics Of Conflict In Ethiopia, Melayae L. Houser

CMC Senior Theses

This thesis investigates whether Ethiopia's system of ethnic federalism resolved the longstanding conflicts that have characterized the country's political history or instead transformed them into new manifestations. Introduced in 1991 after the collapse of the Derg regime, ethnic federalism reorganized Ethiopia into ethnically defined regional states and granted groups constitutional rights to self-governance and self-determination. The system aimed to address historical grievances stemming from decades of centralized, exclusionary governance.

Employing a four-part analytical framework, this thesis analyzes two case studies: the Tigray War of 2020–2022 and the Oromia-Somali border conflict, to argue that ethnic federalism did not resolve Ethiopia's underlying …

The Economics Of The U.S. Student Loan Market And The Case For The Education Development Financial Institution, Ian Akers

CMC Senior Theses

The United States student loan market is shaped by a variety of market failures–credit constraints, positive externalities, behavioral frictions including myopia, debt aversion, and misperception–that together justify government intervention in the market. Yet the design of federal intervention is just as important as its existence. This thesis details the economic theory underpinning the market for student loans, evaluates three historical federal student loan programs (the Perkins Loan Program, the Federal Family Education Loan Program, and the Federal Direct Loan Program) through the lens of that theory. The thesis then proposes a novel institutional model as a targeted response to the …

Pillpetz: A Smarter Way To Encourage Medication Adherence In Children, John H. Begley

CMC Senior Theses

Medication adherence is usually framed as a problem of patient behavior, but this thesis argues that it is equally a problem of design. Children who take daily medication face barriers that adults often do not: developing executive function, dependence on caregivers, shifting school and home routines, privacy concerns, and stigma around being perceived as different. The standard prescription bottle, by contrast, was designed primarily for dispensing efficiency, safety, and accidental ingestion prevention—not for sustained daily use by a developing child.

This thesis proposes PillPetz, a smart pill case and digital companion that uses routine, play, dose confirmation, and caregiver-connected support …

Revenge Of The Interceptors? The Dod, Congress, And The Return Of Space-Based Missile Defense During Trump 45, Chad Mcelroy

CMC Senior Theses

The initiation of the Golden Dome for America program has brought space-based missile defense (SBMD) to the forefront of American national security policy and rekindled debates that had laid dormant since the administration of President Ronald Reagan. How, forty-two years after President Reagan first proposed the Strategic Defense Initiative, did SBMD return as a national priority? In lieu of public information about the ongoing Golden Dome initiative, this thesis explores the first Trump administration, otherwise known as Trump 45, in order to analyze the development of SBMD proposals by its proponents in Congress and the Department of Defense. I used …

Algorithmic Trading In Idiosyncratic-Payoff Markets: A Multi-Agent System For On-Chain Prediction Contracts, Saif Aldeen A.K. Agha

CMC Senior Theses

This thesis documents the design, deployment, and forward-test evaluation of an evolutionary multi-agent algorithmic trading system on Polymarket, the largest decentralized prediction market. The system pairs a locally-hosted 72-billion-parameter language model with a gradient-boosted statistical filter and an evolutionary selection mechanism that maintains a population of approximately 500 autonomous trading agents. Each agent generates a probability estimate for an event, compares it to the prevailing market price, and trades the resulting disagreement.

The central empirical exercise estimates a panel regression of trade-level profit on the absolute disagreement between the agent's probability estimate and the market price, controlling for agent identity, …

From Reconstruction To The Carceral State: Law, Labor, And Punishment In Black America, Nicolas S. Changbencharoen

CMC Senior Theses

This thesis examines the reconfiguration of racial and labor subordination in the United States from Reconstruction to the present, arguing that the legal abolition of slavery did not dismantle the economic and institutional structures on which it rested. It traces a continuous trajectory through which law and the criminal justice system were systematically weaponized to reconstitute slavery's essential functions under successive institutional forms, each serving as a deliberate mechanism for the extraction of Black labor in service of private and state interests. The analysis culminates in an examination of the modern carceral state, concluding that contemporary prison labor programs continue …

Goods, Practices, Excellence, And The Law: Steps To An Internal Theory Of Value, Rowan Gray

CMC Senior Theses

Practices are the coherent and complex social activities we spend much of our lives engaging in. This category encompasses everything from figure skating to wine-tasting to friend relationships. We gain immense value from participating in practices, and philosophers have articulated a number of accounts for where the value emerges from and how we can best experience it. Many of these theories are ‘externalist’, because they posit that value is incidental to practices and emerges from outside of them.

In contrast, this thesis will argue that the value in practices is internal to each practice. The value comes from each practice’s …

Authoritarian Development & Political Economy Of East Asia: The Making Of South Korea’S Developmental Regime, Christopher J. Chung

CMC Senior Theses

This thesis investigates the historical evolution of South Korea's developmental trajectory during the Park Chung-hee era (1961-1979), a period that left an indelible mark on the country's political economy and industrial landscape. Rather than treating Park's regime as its own starting point, this thesis situates it within a longer historical arc beginning with Japanese colonial rule and continuing through Syngman Rhee's aid-dependent republic, arguing that Korea's developmental success was neither institutionally inevitable nor externally engineered, but the product of a historically specific and ideologically driven state-building project. Four primary questions guide this research: what historical conditions shaped the institutional landscape …

Top-Tier Venture Capital Backing And Startup Acquisition Speed: Evidence Of Certification Signaling In Private Markets, Nicolas Wilde

CMC Senior Theses

The venture capital market is defined by information asymmetry, and private acquisitions represent the setting where that asymmetry bites hardest. Acquirers evaluating private targets have no prospectus, no analyst coverage, and no independent market price to anchor their judgment. This paper asks whether the reputation of a startup's lead investor shapes how quickly that startup is acquired. Using a sample of 1,000 acquired United States technology startups founded between 2008 and 2016, sourced from Crunchbase, I estimate a cross-sectional OLS regression of months from founding to acquisition on a binary indicator of top-tier venture capital backing based on the 2016 …

Modulating Oran Nitrate-Reducing Bacteria To Enhance Nitric Oxide Bioavailability As A Therapeutic Target For Atherosclerosis, Donovan C. Davidson

CMC Senior Theses

Atherosclerosis remains the primary driver of global cardiovascular disease, yet clinical interventions are largely restricted to high-cost, invasive procedures only after it has reached a critical stage. Recent research has identified a connection between the oral microbiome and vascular health via the enterosalivary nitrate-nitrite-nitic oxide (NO) pathway. Oral nitrate-reducing bacteria (ONRB) drive the synthesization of NO by reducing dietary nitrate into nitrite, which is then converted into bioavailable NO. NO is a potent vasodilator that maintains endothelial health by suppressing inflammation through inhibiting the expression of adhesion molecules VCAM-1 and ICAM-1. However, this pathway is easily compromised by dysbiotic oral …

The Jamaica That Dreams: A Normative Application Of Developmental Theory, Tamoy Pitt

CMC Senior Theses

This thesis examines Jamaica’s persistent underdevelopment through Martha Nussbaum's normative application of the capabilities approach as per her conception in Creating Capabilities. Through this approach, the paper will argue that Jamaica’s underdevelopment is a result of the failure of its domestic institutions to provide all citizens with the substantive freedoms and capabilities necessary to live lives of dignity. Originally detailed by Amartya Sen in his book Development as Freedom, the capabilities approach posits freedom as both the means and ends to development while rejecting contemporary approaches to development such as GDP, Utilitarianism, or Rawlsian resource-based approaches as insufficient frameworks for …

A Conceptual Map Of The Right To Repair: Where Upcycling Fits In, Anthony D. Rosborough

Articles, Book Chapters, & Popular Press

The chapter maps contemporary approaches to the Right to Repair along a spectrum from decentralised freedoms to centralised standard setting and product design. Decentralised approaches propose a Right to Repair that resembles a 'negative right' in that it protects user autonomy through dismantling legal and market barriers. Centralised repairability models, on the other hand, align more with a positive right that is built through stringent product design standards, obligations on manufacturers to repair products directly, and situate repair within larger circular economy governance models.

Using the US and EU approaches to Right to Repair policy as illustrative poles, the chapter …

Supply Chain Bargaining And Worker Voice: Reflections On The Bangladesh Accord And The Dindigul Agreement, Marlese Von Broembsen

Comparative Labor Law & Policy Journal

Both private governance and transnational labour law scholars are concerned with the participation of supply chain workers in “enforceable brand agreements.” Much of the private governance literature is concerned with improving workers’ participation in the negotiation and implementation of enforceable brand agreements. Some transnational labour law scholars are concerned with whether transnational labour law should depart from prescripts typical of national labour law — which generally recognises trade unions as the only legitimate representatives of workers — to recognise civil society organisations as bargaining agents. This article analyses the Bangladesh Accord on Fire and Building Safety and the Dindigul Agreement …

An Imperative For Leadership & Institutional Transformation: Going Back To Code, Jonikka Charlton

Writing and Language Studies Faculty Publications

No abstract provided.

Disconsents, Daryl J. Levinson, David E. Pozen

Faculty Scholarship

Consent is an indispensable standard and organizing principle in any liberal legal order that prizes self-directed autonomy, self-identified preferences, and collective agreement. Yet consent’s capacity to advance those values has become increasingly uncertain in a society beset by power imbalances, information asymmetries, and multiple forms of polarization. In this Article, we document how the rise of neoliberalism has led to greater reliance on consent throughout U.S. law, while at the same time leading to greater doubts about its moral efficacy and empirical feasibility. Connecting and generalizing pathologies of consent-based regulation that have been identified within myriad domains, the Article identifies …

Estimating Sediment Properties Using A New Source Level Function For Wind-Driven Underwater Sound Derived From Long-Term Archival Data, S Bruce Martin, Martin Siderius

Electrical and Computer Engineering Faculty Publications and Presentations

Wind-driven breaking waves generate the background sound throughout the ocean. An accurate source level for wind-driven breaking waves is needed for estimating the ambient sound levels needed for sound exposure modeling, environmental assessments, and assessing the detection performance of sonars. Previous models applied a constant roll-off of sound levels at -16 dB/decade at all wind speeds, and these models' source levels were flat at frequencies below ∼1000 Hz due to a lack of measurements. Here, we analyzed 16 long-term archival datasets with limited anthropogenic sound sources to estimate the wind-driven source level down to 100 Hz. We estimated the site-specific …

Advancing Culturally Sustaining Stem Instruction For Latinx Secondary Students: From Research To Practice Through The Monarch Migration, Maryam Saberi, Noushin Nouri

Teaching and Learning Faculty Publications

This chapter presents the development of a research-based STEM curriculum for Latinx students using Monarch butterfly migration phenomenon as context. Based on a systematic review of 196 articles, the study first maps eight STEM research categories for Latinx populations. It then conducts a meta-synthesis of 23 successful interventions to create a Latinx-Affirming STEM (La-STEM) curriculum framework organized around Akker's ten curriculum elements. Finally, it translates these theoretical foundations into practical implementation through a detailed Monarch butterfly migration curriculum. The Monarch phenomenon, chosen for its deep cultural resonance and scientific richness, demonstrates how each curriculum element can integrate STEM concepts with …

Teaching Nature Of Science (Nos) Through Cultural Windows: A Framework For Latinx Preservice Science Teachers, Noushin Nouri, Maryam Saberi

Teaching and Learning Faculty Publications

This chapter presents a comprehensive framework for teaching Nature of Science (NOS) to preservice science teachers through cultural windows, implemented through six targeted activities. The framework, developed through rigorous meta-synthesis of NOS literature and analysis of Latinx preservice teachers' autobiographies, integrates Culturally Sustaining Pedagogy (CSP) and Rightful Presence (RP) theories with NOS curriculum elements. This theoretical foundation informs the design of activities: Dolores Huerta environmental justice, Tangram exploration, historical cases, cultural picture analysis, nixtamalization black box, and family-scientist interactions. Each activity systematically maps to curriculum elements while demonstrating how the framework enables cultural knowledge integration in NOS instruction for meaningful, …

Faculty Senate Monthly Packet October 2026, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The October 2026 monthly packet includes the agenda, appendices, and the Faculty Senate minutes and attachments given in the meeting held October 19, 2026.

Faculty Senate Monthly Packet May 2026, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The May 2026 monthly packet includes the agenda, appendices, and the Faculty Senate minutes and attachments given in the meeting held May 4, 2026.

Mission-Focused Multidisciplinary Design Optimization Of Tilt-Rotor Evtol Propulsion System, Tyler Critchfield, Andrew Ning

Faculty Publications

Tilt-rotor propulsion system design requires a multidisciplinary approach to tackle important challenges and competing tradeoffs between disciplines. In this paper, we model rotor aerodynamics, blade structures, vehicle drag, electric propulsion, and tonal/broadband acoustics for a tilt-rotor, electric vertical takeoff and landing aircraft using low-to-mid fidelity tools. We use gradient-based design optimization with automatic differentiation and parameter sensitivity analyses to explore the design space and complex tradeoffs of tilt-rotor distributed electric propulsion systems, exploring effects of variations in payload/empty weight, battery specific energy, and blade tip speed. This framework models multiple operating points with a mission-focused objective to account for the …

2025 Annual Report, Town Of Brentwood And Brentwood School District, Brentwood Town Representatives

Brentwood, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Town Of Bethlehem, New Hampshire 2025 Annual Report, Bethlehem Town Representatives

Bethlehem, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

The Evolution Of California Wildfire Governance Through State Bills, Regulations, And Executive Actions, Cassandra Dawn Blevins

History and Political Science | Senior Theses

California faces an escalating wildfire crisis, driven by climate change, drought, and development in fire-prone areas. Despite decades of scientific research on wildfire behavior and risk reduction, catastrophic fires since 2017 raise a critical question: to what extent have California state laws and policies kept up with the intensifying wildfire crisis? Existing scholarship provides extensive insight into wildfire ecology, land-use planning, fuel management, and community resilience, yet it lacks a comprehensive evaluation of whether California’s legislative, regulatory, and executive actions have adapted in a coordinated and evidence-informed manner. In particular, the literature offers limited analysis of how state laws integrate …

Co-Curricular Science Experiences Support Undergraduate Students' Science Gpa, Degree Completion, Workforce Entry, And Motivation, Lisa Linnenbrink-Garcia, Tony Perez, Stacy J. Priniski, Sharlyn Ferguson-Johnson, John Keane, Alexandra Lee, Kristy A. Robinson, You-Kyung Lee, Goun Choi, Matthew J. Schell, Danielle N. Berry, Rochelle Schwatz-Bloom

STEMPS Faculty Publications

Science co-curricular experiences (SciXP)-such as research experiences and internships-are a common, yet understudied, strategy to enhance undergraduates' science career pursuit. Using a doubly robust method to account for initial differences in science motivation, academic readiness, and career intentions, we investigated whether SciXP participation across four years of college predicted undergraduates' (N = 1984) science achievement, career persistence, and motivation at the end of college and after graduation. Participation in science co-curricular experiences was positively associated with science GPA, earning a science degree, being in a more science-intensive career one to two years post-graduation, and viewing science as important and useful …

The Pittsburg Micropolitan Area Economic Report, Quarter 3, 2026, Pittsburg State University

Pittsburg Micropolitan Reports

The Pittsburg Micropolitan Area Economic Report is created by the Business and Economic Research Center (BERC) at Pittsburg State University.

The Ethics Of Dental Insurance Submission And Adjudication, Robert Rosenthal Dds

Journal of the American College of Dentists

Dental insurance claims sit at the intersection of professional ethics, contract administration, and regulatory oversight. This article argues that claim submission and payer adjudication should be treated as ethical practices grounded in truthfulness, fair use of shared resources, and respect for patient autonomy. Common failure modes range from misunderstandings of benefit provisions to intentional misrepresentations of diagnosis, procedure coding, dates of service, or supporting narratives. Because payer communications and attachments become part of the claim file, inaccuracies may create downstream harm, including patient financial confusion, audit exposure, recoupment, network consequences, and professional discipline. This article offers practical guidance to help …