Digital Commons Network^™

The Jwst Excels Survey, Elizabeth Taylor, Adam C. Carnall, David Maltby, Omar Almaini, Ho Hin Leung, Struan D. Stevenson, Andrea Negri, Fergus Cullen, Vivienne Wild, Ross J. Mclure, Alice E. Shapley, Karla Z. Arellano-Córdova, Ryan Begley, Cecilia Bondestam, Thomas De Lisle, Callum T. Donnan, James S. Dunlop, Richard Ellis, Guillaume Hewitt, Anton M. Koekemoer, Feng Yuan Frey Liu, Derek J. Mcleod, Kate Rowlands, Ryan L. Sanders, Dirk Scholte, Maya Skarbinski, Thomas M. Stanton

Physics and Astronomy Faculty Publications

We investigate the presence and origin of neutral gas outflows and inflows in 13 post-starburst and quiescent galaxies at redshifts (Formula presented), using James Webb Space Telescope NIRSpec spectroscopy from the EXCELS survey. Na d absorption profiles reveal that 3 out of 13 exhibit blueshifted absorption indicative of outflows, and a further 2 objects show signs of inflowing gas. Outflow velocities range from (Formula presented) 300 to 1200 km s(Formula presented), and we find gas flows are detected exclusively in objects that quenched (Formula presented)  Myr ago. We derive mass outflow rates over two orders of magnitude higher than current …

The Radial And Vertical Structure Of Molecular Gas In The Edge-On Galaxy Ngc 4565, Grace Krahm, Adam K. Leroy, Jiayi Sun, Kijeong Yim, Eric W. Koch, Tony Wong, Deanne Fisher, Erik Rosolowsky, Karin Sandstrom, Dyas Utomo, Jesse Van De Sande, Marie Martig, Amelia Fraser-Mckelvie, Michael R. Hayden

Physics and Astronomy Faculty Publications

We present high-resolution (0 (Formula presented) .″ 94 ≈ 55 pc) Atacama Large Millimeter/submillimeter Array (ALMA) CO(2–1) and¹³CO(2–1) observations of the highly inclined ( (Formula presented) i∼87.°5 ) galaxy NGC 4565 covering out to galactocentric radius R_gal ≳ ± 17 kpc. The combination of sensitivity and resolution enables the detection of CO emission well into the H i-dominated outer disk while isolating individual molecular clouds across the full extent of the galaxy. Although often described as an edge-on Milky Way analog, the molecular gas profile of NGC 4565 has a central gap that is more similar to …

The Regulatory Costs Of Wine Production In Napa County, Lynn Hamilton, Michael Mccullough

Agribusiness

Unlike other food products, commercial alcoholic beverage production has been subject to federal regulation and taxation since the founding of the United States, with specific wine taxes being levied during the wartime Emergency Revenue Act of 1914 (Cilluffo and Gravelle, 2024). Since then, taxation and regulations have expanded, with many new laws originating at the state level. Additional regulatory costs, combined with the current decline in consumer demand raise questions regarding the long-term viability of California wine production. Napa County Farm Bureau contacted Cal Poly to assess baseline conditions in the industry by conducting a case study of regulations accruing …

Summer Proceedings 2026, Computational Modeling Serving Portland, The Altreu Program, Portland State University, Teuscher Lab, Portland State University

altREU Projects

The 2026 Summer Proceedings bring together research conducted by undergraduate students participating in three complementary programs at Portland State University: the National Science Foundation Research Experiences for Undergraduates (NSF REU) site, Computational Modeling Serving Portland; the alternative Research Experiences for Undergraduates (altREU) program, Designing, Programming, and Using Computers to Benefit Society; and the Teuscher Lab internship program.

The NSF REU is a fully virtual, 10-week program centered on computational modeling that serves Portland and the greater region. Students begin with two weeks of intensive training in computational modeling, followed by eightweeks of mentored research with faculty, research collaborators, and community …

Jenny E. Carroll, Jenny E. Carroll

Faculty CVs

No abstract provided.

G. Alexander Nunn, G. Alexander Nunn

Faculty CVs

No abstract provided.

Aric K. Short, Aric K. Short

Faculty CVs

No abstract provided.

Sara Zampierin, Sara Zampierin

Faculty CVs

No abstract provided.

Eric H. Martinez, Eric H. Martinez

Faculty CVs

No abstract provided.

Brendan S. Maher, Brendan S. Maher

Faculty CVs

No abstract provided.

Karon L. Rowden, Karon L. Rowden

Faculty CVs

No abstract provided.

Investigating Culicoides Diversity, Distribution, And Behavior In Arkansas, Cassandra Steele

Graduate Theses and Dissertations

Culicoides biting midges (Diptera: Ceratopogonidae) are globally important vectors of pathogens affecting livestock and wildlife. In the United States (US), transmission of bluetongue virus (BTV), epizootic hemorrhagic disease virus (EHDV), and vesicular stomatitis virus (VSV) results in economic losses and periodic mortality events of wild and domestic ruminants. Culicoides sonorensis is the confirmed vector of BTV and EHDV in the western regions of the US, however this species is uncommon throughout much of the eastern and southeastern US, where hemorrhagic diseases remain endemic. There are likely other putative vector species responsible for pathogen transmission. This research investigated Culicoides diversity, distribution, …

Usa V. Miguel Rosario

2026 Decisions

USDC for the Middle District of Pennsylvania

Jovan Toussaint V. Attorney General United States Of America

2026 Decisions

Agency

Usa V. Timothy Riddy

2026 Decisions

USDC for the Middle District of Pennsylvania

Jason Scott V. Ups Supply Chain Solutions

2026 Decisions

USDC for the District of Delaware

Usa V. Noah Craddock

2026 Decisions

USDC for the Middle District of Pennsylvania

Values And Posttraumatic Resilience: Assessing The Moderating Impact Of Cultural Context, Jeremy Brian Clift

Graduate Theses and Dissertations

People commonly experience a traumatic event during their lives, and many effectively cope with the experience, demonstrating psychological resiliency. However, this is not always the case; others may develop psychopathology in the wake of a traumatic event, such as posttraumatic stress disorder. Why might some people experience clinically significant difficulty following a traumatic event while others do not? The current study examined this question by considering the role of values—cognitive representations of motivations that guide action—and testing predictions generated from the Contextual Model of Values-Based Responding to Traumatic Experiences (Clift & Veilleux, unpublished manuscript). It was predicted that greater growth …

Beyond Semantic Matching: Integrating Graph Structures, Boolean Logic, And Interactive Aggregation In Modern Retrieval, Quan Mai

Graduate Theses and Dissertations

Modern Natural Language Processing (NLP) and Information Retrieval (IR) systems have achieved remarkable success in semantic understanding; however, they continue to struggle with complex logical reasoning, structural interactions, and dynamic aggregation. This dissertation presents a comprehensive framework to enhance the structural, logical, and interactive capabilities of language models and retrieval systems across four progressive studies. First, we address the challenge of modeling dynamic conversational logic in online debates. We introduce a Sequence Graph Network (SGN) that captures the temporal and interactive exchange of ideas—such as counterarguments and reinforcements—by updating node features sequentially through a novel Sequence Graph Attention (SGA) layer. …

Evaluation Of Metabolizable Energy And Phosphorus Availability In Conventional And Fractionated Dry-Grind Corn Co-Products For Poultry, Luke Parisi

Graduate Theses and Dissertations

The purpose of this research was to determine the availability of energy and phosphorous (P) in dry-grind corn co-products in chickens was assessed. In the first objective, the determination of energy availability, both a precision-fed rooster assay and an ad libitum fed broiler chicken assay were used in order to elucidate energy availability in corn co-products. There were 8 samples of corn fermented protein (CFP) and 2 samples of conventional distillers dried grains with solubles (CDDGS) evaluated for metabolizable energy (ME). The CFP contained a mean CP and crude fat of 55 and 3.7% (DM basis), respectively, compared with 30 …

Online Sports Betting Legalization And The Reallocation Of Retail Investor Information Search Toward Lottery-Type Stocks, Jared Richard Stark

Graduate Theses and Dissertations

I examine whether the legalization of online sports betting is associated with a reallocation of retail investors' information search across stocks around firm earnings announcements (EAs). Prior work links legalization to a reallocation of household capital, but its association with information search has not been examined. Exploiting the staggered timing of legalization following Murphy v. NCAA, I use four treated and four matched control states over 2017-2024 and measure search using state-level Google Trends data for firm tickers. Treated and control states are already on different trajectories before any legalization, which confounds the average-level comparison. The association I can document …

Potassium Fertilization Timing And Critical Stalk Potassium Concentration As Tools To Improve Corn Production, Gabriela Andrade Leite Mengez

Graduate Theses and Dissertations

Potassium (K) is a common yield-limiting nutrient in Mid-Southern U.S. corn (Zea mays L.) production, emphasizing the importance of effective diagnostic tools to support fertilizer decision-making. This study integrated two approaches to improve K management in irrigated corn systems: (i) evaluating K fertilization timing to identify in-season opportunities for correcting K deficiency, and (ii) developing a corn stalk-based diagnostic test to assess end-of-season K and nitrate-nitrogen (NO₃-N) status and fertilizer adequacy. Seven (2024-2025) and eight (2023-2024) field trials were conducted across Arkansas for the K application timing and stalk testing studies, respectively. For the K timing study, fertilizer-K (112 kg …

Evaluation Of A High Protein Low Oligosaccharide Soybean Meal In Poultry Production, Kasey Matusik

Graduate Theses and Dissertations

The purpose of this study was to evaluate the influence of feeding a high protein, low oligosaccharide soybean meal to optimize poultry nutrition by the effects of feeding the soybean meal to roosters, broiler chickens, and turkeys. Two research objectives were evaluated to determine whether high protein, low oligosaccharide soybean meal would have increased nutritional value. The first objective assessed the metabolizable energy (ME) content of a high protein, low oligosaccharide soybean meal compared to a conventional soybean meal. Using roosters, broiler chickens, and turkey poults, three bioassays were conducted to evaluate the ME of the soybean meal. Results demonstrated …

Remote Sensing-Derived Urban Heat Islands And Land Surface Phenology, Raihan Sorker

Graduate Theses and Dissertations

Thermal remote sensing has been widely applied to characterize urban heat islands (UHI) and their relationship to land use; however, few studies have explored the relationship between land surface temperature (LST) and land surface phenology (LSP). This study focused on the relationship between LST and LSP in the metropolitan region of Kansas City, Missouri, USA using Landsat 8 satellite images from 2015 to 2024. Thermal and normalized difference vegetation index (NDVI) time series were processed using Google Earth Engine to derive annual LST metrics alongside phenological indicators including timing of green-up and senescence as well as growing season length. Individually, …

Localizing And Repairing Backdoor-Sensitive Layers In Pre-Trained Language Models For Secure Fine-Tuning, Sunanda Das

Graduate Theses and Dissertations

Task-agnostic backdoor attacks can contaminate pre-trained language models (PLMs) in a way that survives downstream adaptation, even under full fine-tuning, making it difficult for practitioners to trust third-party checkpoints. Existing defenses often rely on privileged assumptions (e.g., access to poisoned data or trigger/target knowledge), thereby limiting their applicability in realistic settings. We present DiSec (Disentanglement of potentially adversarial weights for Secure fine-tuning), a robust and label-efficient purification framework that uses only clean auxiliary text and does not rely on downstream supervision or attack signatures. DiSec elicits model-internal signals from this clean data to separate suspicious parameter components that are inconsistent …

Native American Speech-Language Pathologists: Voices And Perspectives, Lexi Woods

Graduate Theses and Dissertations

Abstract: This narrative inquiry centers the lived experiences and professional voices of Native American speech-language pathologists (SLPs) working with students with disabilities on tribal lands, a population that remains unheard within special education and speech-language pathology research. Grounded in Indigenous epistemologies that honor relationality, storytelling, and community accountability, this study explores how Native American SLPs navigate systemic inequities, cultural and linguistic mismatches, and institutional constraints while providing services in public, tribally controlled, and Bureau of Indian Education schools. Through in-depth narratives, the research illuminates how participants resist deficit-based approaches by reframing silence, communication styles, family engagement, and disability through culturally …

Parent-Child Interaction Therapy For Toddlers In Japan: Comparing Outcomes For Children With And Without Autism And/Or Developmental Delays, Emily-Anne Sevilla Del Rosario

Graduate Theses and Dissertations

Parent-Child Interaction Therapy for Toddlers (PCIT-T) is a toddler adaptation of Parent-Child Interaction Therapy designed to improve social-emotional development and parenting practices among children under two years of age. This study evaluated the effectiveness of PCIT-T among Japanese families and explored whether treatment outcomes differed between neurotypical toddlers and autistic children and/or children with developmental delays. Data was analyzed from 83 parent-child dyads who received PCIT-T in community-based agencies across Japan between 2018 and 2023. Results indicated significant improvements in children’s protective developmental factors, caregiver use of PRIDE skills, and reductions in Avoid skills following treatment. CARES skills did not …

Impact Of Baseline Cognition On Dual-Task Performance: Tracking Verbal Accuracy And Fluency In Adults At Risk For Alzheimer’S Disease, Rebecca Nicole Frederichs

Graduate Theses and Dissertations

Alzheimer’s Disease (AD) is increasing in prevalence as life expectancy continues to rise, highlighting the need for sensitive measures to detect early cognitive changes. This study examined the effects of baseline cognitive status on dual-task performance over time, in terms of dual-task cost, verbal fluency, and verbal accuracy in older adults at risk for AD. This study utilized a quantitative secondary analysis of the longitudinal dataset, the Digital, Cognitive, Multi-Domain Alzheimer Risk Velocity (DC-MARVel) study (Gray et al., 2022). Participants were categorized into low, medium, or high cognitive tertiles based on baseline Repeatable Battery for the Assessment of Neuropsychological Status …

Human-Ai Collaboration For Operations And Supply Chain Management Decision Making, Finnegan Mckinley

Graduate Theses and Dissertations

Artificial Intelligence (AI) adoption continues to advance across supply chain management processes. A Gartner 2025 report shows that 84% of surveyed firms reported AI and machine learning investments for core supply chain tasks. However, both industry and academic literature highlight the importance of integrating AI and human judgment in decision making processes rather than fully automating with AI. The success of this integration depends heavily on the humans who use these AI tools. Therefore, this dissertation presents three essays that conceptually and empirical examine behavioral interactions between humans and AI in supply chain management decision making processes, primarily in the …

City Context And Climate Risk Perception In Arkansas, Mohammad Mizanur Rahman

Graduate Theses and Dissertations

Perceptions of climate change risk are shaped by both individual-level factors, such as cultural worldviews, party identification, and demographic characteristics, as well as by local environmental and contextual characteristics. This study, conducted in Arkansas, employed both individual- and city-level analyses to assess the influence of local context on variation in climate change risk perception. At the city level, measures of climate policy environment, digital infrastructure, civic and resource context, political landscape, and climate-related vulnerability were developed and compared across Arkansas cities. At the individual level, the analysis explored associations between cultural worldviews, party identification, demographic variables, and climate risk perception. …