Digital Commons Network^™

Fear Of The Other: Explaining Immigration Anxiety In The United States, Ramon Arguelles

Student Scholar Symposium Abstracts and Posters

Illegal immigration has become one of the most politically divisive issues in the United States, with many Americans fearing its social, political, and economic effects. This paper examines possible causes of the fear of illegal immigration, specifically focusing on media consumption, employment status, and education level. Using Wave 11 of the Chapman Survey of American Fears, a nationally representative survey of U.S. adults, this paper analyzes whether these variables can serve as indicators of fear of illegal immigration. Drawing on media framing theory, labor-market competition theory, and theories of education and cognitive sophistication, three hypotheses were tested using Pearson correlation …

Voter Gender And U.S Senatorial Candidate In 2024 Election, Gwenn Ricordel

Student Scholar Symposium Abstracts and Posters

This study examines whether gender influences voters' decisions to support candidates based on the political party of the senatorial candidate in the U.S. Senate elections. While research suggests that gendered stereotypes and perceived issues on ability create a clear gender gap in voting behaviors, this research argues that in high-information national elections, these identify factors come second to party identification and economic outlook. The main goal of this research is to determine whether the gender of the voter truly impacts whether they vote for a candidate based on political party, or whether their decision is rooted more on identity based …

Discrepancies In Pediatric Oral Health, Tyler B. Truong

Student Scholar Symposium Abstracts and Posters

In 2024, data was collected by the CDC on untreated tooth decay. From that data, children living in low-income households had an estimated 18.8% of tooth decay untreated, almost triple the amount when compared to children from middle to high income households (6.6%). As the income disparity continues to grow in the US, it is critical that we implement strategies to aid lower income communities in providing their children with proper oral hygiene tactics. In order to understand how communities can help promote healthy oral hygiene for their children, a survey of dentists from various areas was conducted to see …

A Remote Sensing Approach To Identifying Zones Of Instability In Mine Tailings Impoundments Using Multi-Sensor Satellite Data, Arden K. Pierce

Honors Theses

Mine tailings impoundments are structures built to contain the chemical and sedimentary byproducts generated by ore extraction activities. In this common method of mining waste storage, the tailings can be pumped into containment ponds and held behind earthen embankments to prevent the release of hazardous substances into the surrounding environment. Monitoring environmental factors that influence the structural integrity of these impoundments is essential for identifying areas vulnerable to instability and failure. Soil moisture is a factor that can affect the stability of mine tailings impoundment structures. This study evaluates the relationship between satellite-derived soil moisture and surface deformation at mine …

Quantifying Genetic Diversity In Nematode Feeding Rate, Jacob King

Honors Theses

Understanding how populations persist under changing environmental conditions is a central question in ecology and evolutionary biology. Variation in traits related to resource acquisition may play a key role in determining population survival when resources are limited or fluctuate over time. In this study, I investigated how variation in feeding-related traits influences population persistence using a combination of computational modeling and laboratory experiments. I developed a stochastic, individual-based consumer–resource model to simulate population dynamics across varying levels of trait variance and resource regimes. Across 60,000 simulated populations, increased trait variation consistently reduced extinction risk and extended persistence time, although the …

Lunar Manufacturing Systems And The Role Of Additive Recycling Technologies, Camille A. Newman

Honors Theses

Renewed international interest in sustained lunar exploration has created a growing demand for technologies to support long-duration space exploration. Part of the recent Artemis missions and the Moon to Mars initiative is to improve key mission capabilities and fill critical gaps necessary to sustain lunar habitation. Waste management, recycling systems, and manufacturing systems have been identified as critical technologies that need further development before a sustained mission is possible. This thesis explores the feasibility of an additive manufacturing and recycling system designed to process plastic waste generated during extended lunar habitation. Initial research focused on existing manufacturing and recycling technologies …

Not An Afterthought: Addressing The Academic And Social Challenges That Create Barriers To Belonging For Transfer Students, Brooke Jankowsky

Honors Theses

This thesis examines the academic and social barriers to belonging for transfer students at four-year institutions, with particular attention to the University of Mississippi. The goal is to bring attention to the issues that surround transfer student populations in general by identifying some of the most pressing structural and interpersonal challenges that shape their experiences. A qualitative approach was used, drawing on existing literature, prior unpublished research at the community college level, and reflective analysis to explore themes such as transfer shock, creating and maintaining social networks, and gaps in institutional support. Findings suggest that transfer students often face a …

Lunar Manufacturing Systems And The Role Of Additive Recycling Technologies, Camille A. Newman

Honors Theses

Renewed international interest in sustained lunar exploration has created a growing demand for technologies to support long-duration space exploration. Part of the recent Artemis missions and the Moon to Mars initiative is to improve key mission capabilities and fill critical gaps necessary to sustain lunar habitation. Waste management, recycling systems, and manufacturing systems have been identified as critical technologies that need further development before a sustained mission is possible. This thesis explores the feasibility of an additive manufacturing and recycling system designed to process plastic waste generated during extended lunar habitation. Initial research focused on existing manufacturing and recycling technologies …

How Ux Design Shapes Brand Perception In Digital Environments Among Gen Z, Adriane R. Arinder

Honors Theses

This study examines how user experience (UX) design shapes brand perception among young adult consumers, with a focus on digitally active individuals between the ages of 18 and 25. Drawing on a review of academic and industry literature, qualitative data from a focus group of seven University of Mississippi students, and quantitative data from a survey of 153 participants, this research argues that intuitive, accessible digital experiences function as a form of brand communication that significantly influences how users evaluate the companies behind them. The study conceptualizes UX through four primary dimensions: usability, navigation clarity, interaction efficiency, and accessibility. Findings …

Maternal And Mental Health Action Plan To Improve Perinatal Outcomes Across The Continuum Of Care In A Community-Based Hospital, Hannah Simmons

Walden Dissertations and Doctoral Studies

No abstract provided.

Effect Of Accelerated Adaptation Programs On Feedlot Performance And Health Of Steers Drenched With Megasphaera Elsdenii And Quantifying And Partitioning Multi-Year Carbon Dioxide And Methane Fluxes In A Grazed Temperate Pasture, Rebecca Mcdermott

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

With strong consumer demand for beef and increasing concern about the environmental impacts of beef production, improving production efficiency and advancing the understanding of the environmental footprint are critical for the long-term sustainability of beef production systems. The first experiment evaluated the effect of accelerated adaptation strategies, using energy intake and cattle behavior, on feedlot performance, carcass characteristics, and health of yearling steers drenched with exogenous Megasphaera elsdenii. Accelerated adaptation programs (0, 7, or 14 d transition to 100% finisher) were compared to a traditional 21-d adaptation. Dry matter intake responded quadratically across treatments, with the greatest intake observed in …

High Throughput Experimentation Catalysis Center (Hte), Na Gou, Purdue University Office Of Research

University Research Core Facility Boilerplate Descriptions

No abstract provided.

Rich Gentry Named Dean Of School Of Business Administration, Jacob Batte

University of Mississippi News

OXFORD, Miss. – The University of Mississippi named Rich Gentry the next dean of its School of Business Administration, pending approval by the board of trustees of State Institutions of Higher Learning.

Cd8+ T Cell Differentiation Into Nk-Like Effector Cells Drives Transplant Rejection, Dawei Zou, Stephanie G Yi, Yulin Dai, Luan Truong, Lillian W Gaber, Richard J Knight, Xiang Xiao, Rafik M Ghobrial, Xian C Li, Zhongming Zhao, Wenhao Chen, A Osama Gaber

Faculty, Staff and Student Publications

T cells are central drivers of transplant rejection, yet the differentiation fates underlying this process remain unclear. Using single-cell transcriptomic profiling of human kidney allograft biopsies, we identified a predominant infiltrating CD8+ T cell subset exhibiting killer cell lectin-like receptor (KLR)+ NK-like features. Mechanistic studies in mice showed that the KLR+ subset emerged de novo post-transplantation and dominated the CD8+ T cell infiltrate in rejecting allografts. These NK-like CD8+ T cells expressed high levels of interferon regulatory factor 4 (IRF4), and Irf4 deletion disrupted their differentiation and induced transplant acceptance. Therapeutically, either costimulation blockade or mTOR inhibition substantially reduced the …

Phenomenological Philosophy Of Psychedelics: Psychedelic Experience In The Modes Of Saturation And Flesh, Michael V. Kramer

Electronic Theses and Dissertations

This work seeks to develop the nascent sub-field of the phenomenological philosophy of psychedelics. Beginning with a general overview of key aspects pertinent to psychedelic studies, the focus then turns to a general disciplinary discussion of current approaches within the philosophy of psychedelics, as well as psychedelic philosophy—a distinction which is technically deployed. Special consideration is given to the specific approach known as the “natural philosophy of psychedelics,” which is taken as the philosophical foil to the preferred approach of phenomenological philosophy. A survey of the extant literature regarding the implementation of phenomenology within psychedelic discourse is then provided …

Meet And Greet With Tony Pérez (Laii Career Series), Tony Pérez

LAII Events

This event will offer students the opportunity to learn about Tony Pérez’s career in public service and to engage with him about his current work in the field. Students interested in pursuing careers in government service are especially encouraged to attend. Light refreshments will be provided.

José Antonio “Tony” Pérez is a New Mexico native who earned dual Bachelor of Arts degrees in Latin American Studies and Spanish in 2012 from UNM. He furthered his education by completing a Master of Arts in International (Sustainable) Development at the SIT Graduate Institute in Washington, D.C., in August 2014. Tony currently serves …

Mass Spectrometry-Based Spatial Imaging Of The Cochlea, Roberto A. Ribas, Qun Tang, Scarlett I. Caffee, Cameron J. Shedlock, Tara R. Hawkinson, Abigail K. Dragich, Borhane E.C. Ziani, Franca Bucco Paolasso, Alyson P. Black, Xin Ma, Harshitha C. Kota, Li Chen, Gregory I. Frolenkov, Derek B. Allison, Matthew S. Gentry, Ramon C. Sun, Craig W. Vander Kooi

Physiology Faculty Publications

Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging (MALDI-MSI) is transforming spatial molecular studies. However, applying MALDI-MSI to small, anatomically complex tissues remains challenging. One such structure is the cochlea, the auditory part of the inner ear that is critical for hearing. To address these challenges, we developed and implemented a streamlined workflow for sample preparation and processing to obtain MALDI-MSI data on mouse cochlea. Sample acquisition was optimized to minimize time and processing steps, allowing use of flash-frozen neonatal mouse heads. This workflow enabled high spatial resolution metabolomic and lipidomic imaging of the sagittally cryosectioned mouse cochlea using N-(1-naphthyl) ethylenediamine dihydrochloride …

Engagement Modeling And Inference For Risk-Aware Path Planning Under Adversarial Uncertainty, Grant Stagg

Theses and Dissertations

This dissertation develops methods for planning safe and efficient trajectories for autonomous vehicles operating in environments containing adversarial and environmental threats with uncertain parameters. The central objective is to quantify and control the risk of adverse events--such as interception or detection--when threat characteristics are imperfectly known. To address this challenge, probabilistic weapon engagement zone (PEZ) models are introduced to estimate the likelihood of violating adversarial engagement constraints under uncertainty in pursuer state and capabilities. Multiple computational strategies are developed for PEZ evaluation, including first-order sensitivity-based approximations, Monte Carlo estimation, and neural-network surrogate models. These approaches enable rapid engagement-probability assessment and …

Purdue University Archives And Special Collections, Neal Harmeyer, Purdue University Office Of Research

University Research Core Facility Boilerplate Descriptions

No abstract provided.

Research Instrumentation Center (Ric), Ryan Hilger, Purdue University Office Of Research

University Research Core Facility Boilerplate Descriptions

No abstract provided.

Purdue Interdepartmental Nmr Facility (Pinmrf), John Harwood, Purdue University Office Of Research

University Research Core Facility Boilerplate Descriptions

No abstract provided.

Purdue University Rare Isotope Measurement Laboratory – Prime Lab, Marc W. Caffee, Purdue University Office Of Research

University Research Core Facility Boilerplate Descriptions

No abstract provided.

Scifres Nanofabrication Laboratory (Cleanroom), Ron Reger, Purdue University Office Of Research

University Research Core Facility Boilerplate Descriptions

No abstract provided.

Transgenic And Genome Editing Facility, Judy Hallett, Purdue University Office Of Research

University Research Core Facility Boilerplate Descriptions

No abstract provided.

Optimization Of Refolding, Purification, And Analytical Characterization Of Proinsulin(F25d) Soluble Antigen Array Immunotherapy, Abigail Richardson

McKelvey School of Engineering Graduate Student Theses & Dissertations

Type 1 Diabetes (T1D) is characterized by autoreactive immune responses to insulin and its precursor, proinsulin. Soluble antigen arrays (SAgAs) displaying the metabolically inactive proinsulin variant, proinsulin(F25D), represent a promising antigen‑specific immunotherapy candidate for T1D. However, the production of these platforms is hindered by substantial practical challenges, including protein aggregation, inefficient refolding, and the lack of sensitive analytical tools to verify quality and dosage. This work establishes an integrated, scalable pipeline for the purification, conjugation, and quantification of a proinsulin(F25D) SAgA. First, we optimized the refolding of recombinant methionine-proinsulin(F25D) (M-PI(F25D)) from inclusion bodies using controlled buffer systems and created a …

Improving Semantic Precision In Text-To-Image Diffusion Models Via Latent-Space Optimization And Semantically-Parsed Evaluation, Mohammad Rouie Miab

McKelvey School of Engineering Graduate Student Theses & Dissertations

Text-to-image diffusion models can produce visually impressive images from natural-language prompts, but they often fail to satisfy the detailed semantic constraints expressed in compositional prompts. Typical failure modes include omitted objects, merged entities, incorrect quantities, incorrect attribute binding, and leakage of one entity's attributes onto another. This thesis studies the problem of semantic precision in text-to-image generation: how faithfully a generated image satisfies the structured meaning of its prompt.   The thesis makes two linked contributions. First, it presents a training-free inference-time refinement method for diffusion-based image generation. The method operates directly in latent space during denoising and uses noun-phrase-aware cross-attention …

Toward The Salmon Prize: A Computational Certificate For The M5, M6, And M9 Equation Families Of Σ4(P3 × P3 × P3), John Trevino

Theatre Faculty Publications

We present a computational certificate for three families of explicit polyno- mial equations whose zero locus contains the fourth secant variety σ4(P3×P3×P3) inside P63. The three families are: 192 degree-5 Strassen commutation equa- tions (M5); 160 degree-6 equations lifted from the Bates–Oeding generators of σ4(P2 × P2 × P3) via the Landsberg–Manivel–Friedland theorem (M6); and 64 degree-9 Ottaviani 9 × 9 determinant equations (M9). All 416 generators are explicit polynomials in the coordinate ring Z[Zijk | i, j, k ∈ {0, 1, 2, 3}]. We verify by exact integer arithmetic that every generator vanishes on rank-4 test tensors (six independent …

Trauma, Memory, And Decision-Making: How Covid-19 Shaped Autobiographical Memories And Risky Decision-Making In Young Adults, Rachel Seo

Student Theses

Autobiographical memory is a critical component of the memory process that guides future behaviors by relying on past personal experiences connected to major public events. This decision-making process is heavily influenced by trauma exposure and post-traumatic stress disorder (PTSD) symptoms, as they may guide individuals to riskier behaviors. The COVID-19 pandemic represents a global traumatic stressor that contributed to shifts in behavioral outcomes post-pandemic. Despite research showing associations between memory accessibility, traumatic symptoms, and decision-making, there is limited research on health-related behaviors and post-pandemic behavioral outcomes in individuals with high trauma exposure specifically from the pandemic. The present study investigates …

Cross-Sectoral Collaborations And Funding And Coordination Mechanisms In One Health Zoonoses Management In Peru, Lisset Dumet Poma, Erin S. Kenzie, Julia Goodman, Veronika Merino, Vanessa Cruz, Ruth Atto, Percy Vilchez, Seth O’Neal

OHSU-PSU School of Public Health Faculty Publications and Presentations

One Health (OH) is a comprehensive approach that recognizes the human-animal-environment interconnection to health and is applied to prevent and control zoonoses—diseases transmitted between animals and people. Using a multiple-method case study, we examined zoonoses networks, resource management mechanisms, and coordination strategies among policymakers and decision-makers of Peru’s human, agricultural, and environmental systems at national and sub-national levels. Social network analysis revealed collaborations between the human and agricultural systems, with limited connection with environmental systems. Only a few links were reported between national and sub-national government levels. Qualitative analysis identified structural barriers, including insufficient regulatory mechanisms for funding cross-sectoral activities. …

Predicting And Decoding Allosteric Binding Sites Using Protein Language Models And Structure-Based Machine Learning: An Energy Landscape-Guided Explainable Ai Framework, Kamila Riedlová, Vít Skrhák, William G. Gatlin, Max Ludwick, Lucas Turano, Marian Novotný, David Hoksza, Gennady M. Verkhivker

Mathematics, Physics, and Computer Science Faculty Articles and Research

Computational prediction of allosteric binding sites in protein structures remains a persistent challenge, as these regulatory pockets evade detection by both sequence-based and structure-based algorithms. Both computational and physical origins of this predictive asymmetry remain insufficiently understood. In this study, we systematically examine the determinants of binding site predictability using a dual framework that integrates a fine-tuned protein language model and the structure-based method P2Rank as complementary tools probing a diverse data set of 453 human kinases, together with a physics-based interpretability layer derived from energy landscape frustration analysis. Both predictors exhibit a sharp and reproducible dichotomy on protein kinases, …