Tidings, Volume 4 (2026), University Of Dayton. Marian Library

Tidings: An Annual Communiqué from the Marian Library

No abstract provided.

The Role Of Seed Mix Characteristics And Soil Amendments During Post-Agricultural Prairie Restoration, Valerie N. Thurston, Michaela J. Woods, Madelaine Gregory, Mary C. Lloyd, Ryan W. Mcewan

Biology Faculty Publications

Introduction: Prairie restoration on degraded lands may be influenced by seed mix characteristics, including species richness and legume establishment. Soil amendments may facilitate restoration; however, the practical usefulness of techniques such as applications of whole soil and leaf mulch remains relatively unclear.

Objectives: We assessed whether increasing species richness and legume content in seed mixes enhances prairie restoration success and examined how soil amendments interact with seed mix composition to influence cover, species richness, diversity, and legume establishment.

Methods: We conducted a field experiment on a 12-ha post-agricultural site in Ohio, U.S.A. Twenty 50 × 50 m plots received one …

Synergistic Reinforcement Of Lignin–Chitosan Hydrogels Using Vanillin As A Sustainable Green Crosslinker, Moses Ayitey-Adjin Jr., Mohammad Jahid Hasan, Jeremy Erb, Kishore Chand, Garry S. Crosson, Kenya Crosson, Esteban Ureña-Benavides, Erick Salvador Vasquez-Guardado

Chemical and Materials Engineering Faculty Publications

While bio-based hydrogels derived from lignin and chitosan are promising sustainable adsorbents, their practical application is hindered by poor mechanical stability. This study addresses this limitation by synthesizing lignin-chitosan hydrogels using vanillin as a green, bio-derived crosslinker via a facile solution-casting method. The formation of imine (Schiff base) linkages between the aldehyde groups of vanillin and the primary amines of chitosan was confirmed by FTIR spectroscopy (C = N stretching at ~ 1602 cm^− 1). SEM and TGA results demonstrated a reduction in the pore size of the crosslinked hydrogel and an enhanced residual thermal mass. Rheological and …

The Ohio Oil And Gas Anti-Indemnification Statute: A Proposal, Reid Edwards

University of Dayton Law Review

No abstract provided.

Disability-Related Educational Content In Nutrition And Dietetic Programs: An Exploratory Study, Wendy Medunick, Allison Gomes, Joachim Sackey, Laura Byham-Gray, Jane Ziegler

Journal of Dietetic Education

Background: Health disparities experienced by people with disabilities (PWD) are partly attributed to inadequate knowledge, training, confidence and competence regarding disabilities among health professionals. While registered dietitian nutritionists (RDNs) are key members of the healthcare team, it is unclear how pre-professional nutrition and dietetics (ND) programs prepare future RDNs to care for PWD. This study examined the status of disability-related education within ND programs in the United States. Methods: A descriptive cross-sectional electronic survey was distributed to 570 directors of accredited ND programs. The survey, which adapted questions from a previously validated instrument and published studies, included questions assessing disability-related …

Strict Steiner Symmetrization For Polygons, Joseph Chai, Sun-Yung Alice Chang

Electronic Proceedings of Undergraduate Mathematics Day

In this note, we introduce a method called Strict Steiner Symmetrization (see Section 2.2) that is an altered form of Steiner Symmetrization that fixes the number of vertices. The context of this paper will be to prove the Isoperimetric Inequality in R2 via approximation by polygons. Specifically, to establish that among all n-gon domains in the plane, the regular m-gon, m ≥ n, uniquely minimizes the isoperimetric ratio and that the limit of this regular polygon (that is the circle) achieves equality in the isoperimetric inequality. This note is an extracted portion of my junior thesis (A Polygonal Proof of …

Predator-Prey Dynamics: Exploration And Logistic Extension Of The Lotka-Volterra System, Amanda Maylath, Samuel Brensinger

Electronic Proceedings of Undergraduate Mathematics Day

The Lotka-Volterra system is a classic model of predator–prey interactions, capturing the interdependent growth and decline of two species. Using a dynamical systems approach, we identify fixed points, linearize the system via the Jacobian, and analyze phase space trajectories to determine stability and long-term behavior. This analysis provides insight into predator-prey dynamics without requiring explicit solutions. We further extend the model by incorporating a carrying capacity for the prey, reflecting more realistic population dynamics.

Numerical Solutions Of The Poisson And Heat Equations Via Wave Kernel-Based Particular Solutions, Braylon Smith, Anup Lamichhane

Electronic Proceedings of Undergraduate Mathematics Day

In this paper, we investigate the closed-form particular solutions of Poisson’s equation using the wave kernel as a forcing term. We explore how the method of approximate particular solutions can be applied to obtain numerical solutions of partial differential equations such as the Poisson and heat equations with Dirichlet boundary conditions in 1D. Numerical experiments carried out in MATLAB validate that the derived closed-form particular solutions provide accurate numerical results, demonstrating the effectiveness of the proposed approach.

Magnetic Cellulose Nanocrystal Composites: Synthesis, Properties, Applications, And Opportunities, Mohammad Jahid Hasan, Kishore Chand, Esteban E. Ureña-Benavides, Erick S. Vasquez-Guardado

Chemical and Materials Engineering Faculty Publications

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Magnetic Cellulose Nanocrystal Composites: Synthesis, Properties, Applications, and Opportunities

Metal Oxide Nanoparticle‑Integrated Phema Hydrogels: Morphology, Chemical Properties, And Biological Interaction, Venkateswar Rao, Collin Cox, Brandon Clark, Arushi Rai, Erick S. Vasquez-Guardado, Madhuri Kango-Singh, Soubantika Palchoudhury

Chemical and Materials Engineering Faculty Publications

Hydrogels offer attractive matrices for incorporating inorganic metal oxide nanoparticles (NPs) to generate multifunctional hybrid materials, but challenges remain in scalable synthesis and correlating their properties to bio-interaction. Therefore, we report the synthesis and characterization of poly(2-hydroxyethyl methacrylate) (pHEMA) hydrogels, and pHEMA hydrogels encapsulating iron oxide or zinc oxide NPs, using a modified free-radical polymerization. Dose-dependent survivorship studies on Drosophila melanogaster revealed that both NP-embedded hydrogels are tolerated over a wide dose range (e.g., 50–200 mg), although ZnO NP-gels exhibit lower survivorship at some concentrations due to their inherent composition and a wider size distribution of iron oxide NPs.

Polymer-Derived Silicon Oxycarbide (Sioc) And Silicon Carbonitride (Sicn) Ceramics For Advanced Electrochemical Energy Storage Applications, Saja Al Ajrash, Erick S. Vasquez-Guardado

Chemical and Materials Engineering Faculty Publications

Preceramic polymers, especially silicon oxycarbide (SiOC) and silicon carbonitride (SiCN) ceramics, have gained significant attention due to their wide range of applications in many fields, particularly in energy storage devices beyond conventional lithium-ion batteries (LIBs). This review focuses on the synthesis, structural characteristics, and properties of SiOC and SiCN ceramics as electrodes for battery applications. Furthermore, their promising applications as electrode materials for energy storage systems are explored, along with the most recent advances in the development of such materials and their use in lithium-ion batteries (LIBs), lithium-sulfur batteries (LSBs), potassium-ion batteries (PIBs), sodium-ion batteries (SIBs), and supercapacitors. This review …

University Of Dayton Awarded Nearly $1.36 Million Choose Ohio First Scholarships, University Of Dayton

News Releases

The Choose Ohio First program awarded the University of Dayton scholarships to recruit and graduate students in science, technology, engineering and math (STEM) fields.

The World Needs You — And You Are Ready, Eric F. Spina

President's Blog: From the Heart

Build community. Seek truth. Cultivate belonging. Model hope. "Together, these are powerful forces as we work toward peace, justice, and the common good," University of Dayton President Eric F. Spina told the Class of 2026 at spring undergraduate commencement.

176th Commencement, Spring 2026

Commencement Programs

Commencement program (graduate and undergraduate exercises) for spring 2026

Biology Major Awarded Goldwater Scholarship For Stem Research Leaders, Dave Larsen

College of Arts and Sciences Newsroom

Ashley Williams is UD’s seventh Goldwater Scholar and the fourth in biology.

Ud Sinclair Academy Marks 10th Anniversary, University Of Dayton

News Releases

The UD Sinclair Academy marks its 10th anniversary with a milestone that reaches beyond campus. More than 250 students have earned a UD degree through the program, with nearly 80% staying in the Dayton region after graduation.

From Theory To Action: Expanding The Reach Of Research, University Of Dayton

University Libraries Blog Archive

Article fees don't stand in the way of publishing UD scholarship.

University Of Dayton Irish Dance Wins Third Consecutive National Title, University Of Dayton

News Releases

University of Dayton Irish Dance again established itself as one of the top programs in the nation after winning first place in the “fun number” competition at the National Collegiate Irish Dance Championships April 11, in Madison, Wisconsin.

Ud Student’S Chinese Studies Minor Enhances Global Engineering Journey, Elisabeth Watson

College of Arts and Sciences Newsroom

An engineering student's minors in Chinese and Asian studies creates opportunities to collaborate with peers from other countries.

Udri To Host National Conference On Power Systems For Space Missions, University Of Dayton

News Releases

With its rich heritage in aerospace and nuclear power technology development, the city of Dayton will be in the national spotlight next week as the site of the 2026 Nuclear and Emerging Technologies for Space Conference, to be held April 27-30 at the Dayton Convention Center.

Doc 2026-19 Proposal For New Bachelor Of Arts In Global Studies, University Of Dayton. College Of Arts And Sciences

Senate Documents

The Bachelor of Arts in Global Studies prepares students to become thoughtful global leaders who engage effectively across cultures and contexts in an increasingly interconnected world. Grounded in intercultural understanding, the program equips students with applied skills for diverse professional settings. Through pathways in Global Citizenship & Intercultural Communication and in Area Studies (Global Spanish and Hispanophone Studies, Global French and Francophone Studies, and Global German Studies) students develop the knowledge and experience needed for careers in international organizations, NGOs, public service, international law, healthcare, or education, among others.

Doc 2007-05 Processes And Procedures Of The Academic Senate, University Of Dayton. Academic Senate

Senate Governing Documents

These "Processes and Procedures" are intended to facilitate the smooth and transparent functioning of the Academic Senate of the University of Dayton.

Molecular Cloning And Purification Of Recombinant Cutinase Enzymes To Study Enzymatic Degradation Of Aircraft Polymer Coatings, Allison Bair

Honors Theses

Fungal degradation of polymer coatings on military aircraft causes accelerated damage and corrosion and results in expensive repairs to affected aircraft, especially in warm and humid environments. This project aims to identify and characterize the fungal enzymes responsible for degrading these coatings and give us a better understanding of their mechanisms of degradation. The focus is specifically on hydrolytic cutinase enzymes, which are secreted by fungi to degrade plant cutin and similar natural polymers. We hypothesize that these enzymes can also break down synthetic polymers, such as the polyester-based coatings used on aircraft, by catalyzing hydrolysis of their ester bonds. …

A System Dynamics Model For Simulating Homelessness Trends In Montgomery County, Ohio, Samuel S. Conley

Honors Theses

Homelessness is a complex social issue influenced by a wide range of economic, social, and health related factors. Traditional methods for measuring homelessness, such as point-in-time counts, provide valuable snapshots of the population but do not capture the dynamic processes that lead individuals into or out of homelessness. This work presents a system dynamics model designed to simulate homelessness trends within Montgomery County, Ohio. The model represents the county population using five primary states: general population, at-risk, homeless, supportive housing, and unaccounted individuals. To better capture heterogeneity within the population, the homeless and supportive housing states are further decomposed into …

Ai-Driven Computer Vision For Automated Ripeness Detection In Tomato Plants, Austin Ebbing

Honors Theses

This work presents a computer vision-based approach for automated ripeness detection in tomato plants. The system leverages a YOLOv8 segmentation model trained on a publicly available dataset to detect and isolate individual tomatoes within complex visual environments. While segmentation provides an initial estimate of tomato regions, additional processing is required to remove non-fruit artifacts such as stems and leaves that may interfere with analysis. To address this, an edge-constrained region growing method is used to tighten segmentation masks by removing unwanted structures such as stems and leaves while preserving the underlying fruit. Ripeness is then estimated using a color-based analysis …

Developing Adult Glioma Model In Drosophila, Anna Lindenmuth

Honors Theses

Glial brain tumors typically occur in older adults and have no known cure. Therefore, it is important to study the growth and physiological effects that this disease causes in hopes of finding an adequate solution. A great and inexpensive model to study glial cell tumors is flies because they share similar neurological pathways with humans. Our lab studies glioma brain tumors in larval stages of Drosophila, but no adult models have been made to account for and match the occurrence of cancer developing in older adults. Therefore, this study’s purpose is to create and study the growth of glial cell …

"Of Good Blood In Good Standing”: Nation-Building And The Politics Of Belonging In The Stockbridge-Munsee Community, Caleb Molseed

Honors Theses

Between 1734 and 1856, the Stockbridge Mohicans and Munsee Lenape endured five major displacements from their ancestral homelands in Massachusetts and New York to their present-day reservation in Wisconsin. Despite shifting federal structures and nation-to-nation policies, these two distinct peoples formed a unified political entity: the Stockbridge-Munsee Community. This thesis examines the colonial systems that enabled, complicated, and recorded how this community engaged in their own nation-building through their interpretation and production of religious, economic, and political documents. This documentary culture is highlighted by the exclusion of John Lewis from the nation following his 1856 killing of a fellow tribal …

Ud College Student Health Literacy And Well-Being, Olivia R. Upchurch

Honors Theses

In my Honors Thesis Research Project, I studied University of Dayton (UD) students' health literacy and well-being. Well-being is a state of being comfortable and happy. It includes mental well-being and physical activity. Mental well-being is a state of positive psychological, social, and emotional health. Physical activity is bodily movement that promotes physical health. Health literacy is the ability of someone to understand and effectively use health information to make well-informed decisions regarding their health. This project is important because college represents a time when young adults begin to manage their well-being and healthcare independently from their parents or guardians. …

Characterization And Reliability Of Amorphous Oxide Thin-Film Field-Effect Transistors, David Weaver

Honors Theses

This work investigates the electrical performance and reliability of thin-film amorphous oxide field-effect transistors based on titanium-doped indium oxide (In_₂O_₃:Ti) as the channel material. Devices were fabricated and systematically characterized through current-voltage (I-V) measurements to extract key parameters including threshold voltage, subthreshold swing, and on/off current ratio. Devices were also characterized using a positive and negative bias temperature instability (PBTI/NBTI) to determine the reliability of the devices.

Mental Stress, Physical Activity And Reproductive Health: A Pilot Study On College-Aged Females In Stem, Ellie Nichols

Honors Theses

Introduction: Undergraduate students enrolled in STEM (Science, Technology, Engineering and Mathematics) programs face rigorous academic demands that place them under immense stress. Chronic exposure to stress elevates cortisol, a key hormone known to disrupt endocrine function, including the reproductive system; such disruptions may contribute to menstrual irregularities. Among mediators that help the body return to homeostasis, physical activity (PA) is widely recognized as an effective tool for managing stress. Previous literature has documented the relationship between stress and reproductive health, however limited research has examined how PA may buffer stress related reproductive disruptions within the undergraduate STEM student population. This …