Digital Commons Network^™

Trees Determined By Their Distance Laplacian Matrix, Devin Doherty, Claire Heitman, Skylar Mcleod, Aidan Crossler, Claire Schindler

Linfield University Student Symposium: A Celebration of Scholarship and Creative Achievement

Graphs can be encoded into a matrix according to some rule. The eigenvalues of the matrix are used to understand the structural properties of graphs. If two graphs share a set of eigenvalues, they are called cospectral. A tree is a graph with no cycles, and for most matrix representations, almost all trees have a cospectral mate. The distance Laplacian matrix is found by subtracting the distance matrix from the diagonal transmission matrix. There is an open conjecture that trees, for their distance Laplacian matrices, do not have a cospectral mate and are therefore spectrally determined. We show that a …

Towards Improving The Performance Of The Adcirc Storm Surge Modeling Software, Nick Weldner, Tim Stitt, Jijun Tang

Caravel Undergraduate Research Journal

Accurately predicting storms and hurricanes is critical to saving lives and reducing economic loss. Therefore, it is necessary to use the most efficient software and hardware technology available in order to improve the performance and fidelity of these predictive mathematical models. For over ten years, the Computational Hydraulics Lab (CHL) at the University of Notre Dame has been involved in developing the high-resolution ADvanced CIRCulation (ADCIRC) storm surge model to predict storm surges in coastal areas. The objective of the work reported here was to port a novel adaption of the parallel ADCIRC code to the state-of-the-art Intel Xeon Phi …

Sustaining The Land Of Ice And Fire, Chandler Green

Caravel Undergraduate Research Journal

No abstract provided.

The Effects Of Government Policies On The Stock Market, Samruddhi Somani, Dr. Holger Kern

Caravel Undergraduate Research Journal

What is the most effective government policy to boost stock returns and, subsequently, to foster economic growth, especially during an economic crisis? This paper examines the effects of various government actions on stock market performance during the global financial crisis of 2007. As expected from rational investors, nearly all of the variation in index levels is explained by the variation in index futures levels, which reflect market expectations. Index and future levels were collected for June 2007-December 2009 using Bloomberg, which tracks data for various financial instruments. The financial crisis timeline furnished by the New York Federal Reserve Board on …

Proofs Of A Trigonometric Inequality, Cameron Butler, Wei-Kai Lai

Caravel Undergraduate Research Journal

A trigonometric inequality is introduced and proved using Hölder’s inequality, Cauchy-Schwarz inequality, and Chebyshev’s order inequality.

An Exploration Of The Application Of Threshold Concepts In Sport Management, Debra Burke, Kadie Otto, Aj Grube, Charlie Parrish, Dan Grube

Global Sport Business Journal

Jan Meyer and Ray Land introduced the theory of threshold concepts to identify learning outcomes that represent a fundamental shift in the understanding of a subject which distinguishes how experts in the discipline internalize the discipline (Meyer & Land, 2006). They described the mastery of threshold concepts as being “akin to passing through a portal, opening up a new and previously inaccessible way of thinking about something” (Meyer & Land, 2006, p. 3). Threshold concepts as defined by Meyer and Land (2006) are characterized by these features:

• Transformative: Once understood, a threshold concept changes the way in which the student …

Learning Standards Developments, James Strickland, Christofer Johnson

Caravel Undergraduate Research Journal

Over the past two years, both the United States and United Kingdom have pursued radically different policy measures for eliminating educational performance disparities between traditionally high- and low-achieving student groups. In the US, such measures have consisted of recent changes to No Child Left Behind and the implementation of national learning standards. In the UK, measures have involved the establishment of new state-funded, non-profit “free schools” that are exempt from traditional state regulations. This paper examines and compares reforms in both countries. Whereas in both the US and UK educational jurisdiction appears to be increasingly concentrated within the national governments, …

Exploring The Evolution Of Experienced Elementary Science Teachers' Identities In The Context Of Reform-Based Science, Andrea Woodring

Theses and Dissertations

Abstract Andrea L. Woodring EXPLORING THE EVOLUTION OF ELEMENTARY SCIENCE TEACHERS’ IDENTITIES IN THE CONTEXT OF REFORM-BASED SCIENCE 2025-2026 Joanne Connor, Ed.D. Doctor of Education in Educational Leadership This qualitative narrative inquiry examined how experienced elementary teachers narrated the development and evolution of their science teacher identities within the context of reform-based science education, particularly the adoption of the Next Generation Science Standards. Guided by Identity Theory (Burke & Stets, 2022), narrative analysis (Polkinghorne, 1995), and narrative inquiry scholarship (Kim, 2016; McCormack, 2000), the study positioned teachers’ stories as the primary findings rather than as examples of theory. Five experienced …

Differences In Gendered Educational Experiences Through A Hegemonic Lens: Cultural Influences On Schooling Norms, Camille M. Hubbs

Educational Studies Honors Papers

Recent research literature has found boys to be failing in school compared to girls; because of this a wave of awareness and furthered research on boys has followed. However, girls’ struggles in education must not be ignored as a result of boys’ issues. This project aims to describe and analyze the differences in educational experiences that both sexes have, and it operates under the understanding that culture is a primary influence on these different experiences. Experiences are divided into three broad sections: academic outcomes, confidence, and behaviors. In short, boys generally have worse academic outcomes, girls have poor confidence, and …

Rural, Multigrade Kindergarten Through Grade 8 Teachers’ Experiences With Differentiated Instruction In A Northwestern State, Kristi Lynn Borge

Walden Dissertations and Doctoral Studies

No abstract provided.

Lightweight Attestation Techniques For The Industrial Internet Of Things, Syed Owais Athar

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

The Industrial Internet of Things (IIoT) has transformed critical infrastructure by integrating programmable logic controllers (PLCs) with connected sensors, actuators, and supervisory systems. While these advancements enhance operational efficiency, they also increase exposure to sophisticated cyber-physical threats, particularly through malicious modifications of PLC programs. Existing attestation methods either impose significant computational burdens by performing continuous verification or rely on detailed physical models that are often impractical to maintain across heterogeneous environments.

The first part of this thesis focuses on DuAtt, a dual-layer attestation scheme that integrates a physical process–based anomaly detection mechanism with a targeted attestation of the PLC program. …

Leading While Black: An Examination Of The Black Supervisor Experience Overseeing White Subordinates In Higher Education, Colette Marie Tobias

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

This study examines how systemic racism and social capital hierarchies shape the supervisory experiences of Black supervisors. While existing literature has explored leadership and race, it has not fully examined how systemic racism shape Black supervisors’ experiences or how social capital hierarchies play into the behavioral responses of white subordinates. This study addresses that gap by centering the lived experiences of Black supervisors within higher education.

Grounded in narrative inquiry, this research focuses on how participants make meaning of their experiences through their stories. Data was collected through semi-structured interviews and reflective journals with 19 Black supervisors who had at …

Examining Associations Between Cognitive Factors And Behavior To Promote Culturally Responsive Teaching In Middle School Math: A Conceptual Replication Study, Ashley Struebing

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

The purpose of this research was to examine the association of middle school math teachers’ cognitive processes on their use of culturally responsive teaching (CRT) practices to promote CRT in middle school math classrooms. Specifically, a quantitative, cross-sectional research design was used to conduct a conceptual replication of Comstock et al. (2023), and to extend their research by exploring the association between teachers’ self-efficacy in teaching math and their use of CRT practices. Participants in the current study were urban and rural middle school math teachers who may or may not have been involved in a CRT professional development program, …

Evaluation In Applied Ai: Predictive Modeling, Agent Safety, And Model Validation, Tanmay Sah

Harrisburg University Dissertations and Theses

This dissertation focuses on three applied challenges in machine learning and artificial intelligence: predicting social media content virality, evaluating safety in tool using large language model agents, and standardizing model validation in regulated settings. Across these domains, the dissertation argues that evaluation in applied AI must be matched to context, combining predictive performance with the relevant evidence needed for interpretability, safety, reproducibility, and governance readiness. First, Decoding Reddit Memes Virality extracts and analyzes 16,968 posts using computer vision, natural language processing, and gradient boosting to identify visual, textual, and temporal signals associated with virality. Second, The Verifier Tax designs and …

Florence Normal College Quarterly, Faculty Of Florence Normal College

Documents

Faculty Quarterly Journal of Florence Normal College, January 1910.

The Impatience Of Winning: An Analysis Of Time Discounting, Predictive Modeling, And The Nba Draft, Alec R. Plante

Business and Economics Honors Papers

This paper examines whether NBA draft decisions can be better explained by incorporating non-geometric time discounting into a model of general manager decision making. Using a dataset of 285 NBA draft prospects over a 12-year period, the impact of college statistics on Value Over Replacement Player (VORP) is determined, and these impact values are then used to create a “predicted” VORP for the first 4 seasons of each player’s career: a projection of what a general manager might think of a prospect’s future value given their college statistics. Following this, geometric and hyperbolic time discounting models are applied to estimate …

Leveraging Information Theory And Ecological Network Analysis To Monitor Communication Networks In A Student Aerospace Team, Christine Sessions

Doctoral Dissertations and Master's Theses

Effective communication is a critical component of successful collaboration in group projects and team settings. However, systematically tracking and analyzing team communications can be challenging, especially in complex, multi-member teams such as those found in the aerospace industry. This paper explores an information-theoretic approach that leverages encoding techniques and graph theory to analyze communication networks within a university’s multi-year, student-led cubesat design project (Project COMET). By utilizing Shannon Entropy as a measure of information flow, encoding communication patterns, and analyzing Ecological Network Analysis parameters, this research aims to understand how an Embry-Riddle Aeronautical University student project team evolves over the …

Adaptive Control Combined With Integral Concurrent Learning For Trajectory Tracking Near Asteroids, Alvaro Diaz Rodrigo

Doctoral Dissertations and Master's Theses

Close-proximity operations in the vicinity of Near-Earth Asteroids (NEAs) are essential for scientific studies and possible future planetary-defense missions. Unlike motion around large celestial bodies, spacecraft dynamics near small, rotating asteroids are dominated by weak, highly irregular gravity fields. While full characterization of an asteroid’s shape enables high-fidelity gravitational modeling, such information is typically unavailable in realistic mission scenarios, and in-situ exploration is often required. As a result, the forces acting on the spacecraft cannot be modeled accurately in advance, leading to significant uncertainty in the equations of motion and challenging guidance and control strategies. To address these challenges, the …

Security Assessment Of A Machine Learning Approach To Generate And Validate Digital Signatures, Juan Ortiz Couder

Doctoral Dissertations and Master's Theses

Cybersecurity has become a global concern as cyber-attacks have become more common, and the cost of the damage caused by them continues to increase. There are several approaches to improve the cyber security of systems such as Digital Signatures, hashing, watermarking, and encryption among others. Digital Signatures are a cryptographic technique used to verify the authenticity and integrity of digital messages or documents. Digital Signatures use a combination of hashing and public-private key encryption to verify the authenticity and integrity of videos, just as they are used for documents and messages. As a result of using a combination of other …

Data-Driven Physical-Layer Optimization For Rf And Optical Communications: Transmitarray Metasurfaces, Contextual-Bandit Mud, And Coherent Optical Links, Chengtao M. Xu

Doctoral Dissertations and Master's Theses

This dissertation studies three physical-layer optimization problems that share a common difficulty: the forward model, whether an electromagnetic solver or a statistical channel model, is either too expensive to evaluate at design scale or too unstable to hold across a single processing block. The first two problems are treated in their own right, as problems in antenna design and in multi-user detection over time-variant channels; the third carries the methodology onto a coherent optical link, where size, weight, and power constraints make a small-satellite deployment the natural target.

The antenna work targets a tri-layer pixelated unit cell fabricated on Avient …

Mitigating "Weird": How Undergraduate Teaching Assistants Navigate Role Conflict With Ease Through Repertoires Of Action, Emery Teague

Sociology Honors Projects

Research in role theory has generated insufficient knowledge about how role conflict and role strain intersect, leaving questions of how actors navigate and manage these phenomena in real time. Drawing inspiration from cultural sociology and contentious politics, I theorize that individuals use repertoires of action to mitigate role challenges. Empirically, I investigate how undergraduate teaching assistants manage conflicting and contradictory social roles at a small liberal arts college, given their extensive contact with students outside of the classroom. Analysis of over 15 interviews and ethnographic shadowing of key participants of this population demonstrates the multifaceted, yet recurring, ways that teaching …

Do Dreams Reflect Our Culture? A Statistical Analysis On Dream Narratives, Michal Kuderski

Honors Capstones

Dreams are often viewed as personal experiences, but they may also reflect cultural influences. This project investigates whether dream content varies across cultures by analyzing written dream reports from American, Japanese, and Peruvian college students using data from DreamBank.net. The study applies text analysis techniques to identify common themes and compares language patterns, including the use of ‘I’ and 'We,' to examine differences in self-focus. Statistical methods for count data are used to evaluate these patterns, along with resampling to address differences in sample size. Preliminary findings suggest that both dream themes and language use may vary by cultural …

Do National Parks Significantly Improve Air Quality?, Xinyi Liu

Honors Capstones

Healthy living has long been a goal pursued by individuals. In an era where PM2.5 concentrations and greenhouse gas levels are steadily increasing, many people prefer to live in areas with relatively lower levels of air pollution. National parks, as well-known protected areas, typically contain more vegetation and water resources, along with lower levels of human activity. This suggests two potential mechanisms: first, pollutant emissions are expected to be lower; second, vegetation, water bodies, and non-urban land may contribute to the removal or deposition of airborne pollutants, including particulate matter. In everyday experience, people often perceive the air to be …

Illinois Wesleyan Announces Candidates For Graduation 2026, Ryan Gibson

Press Releases 2020-2029

No abstract provided.

Florence Normal College Quarterly, Faculty Of Florence Normal College

Documents

Faculty Quarterly Journal for Florence Normal College, October 1909.

*Press of The Florence Times*

Florence Normal College Quarterly, Faculty Of Florence Normal College

Documents

Faculty Quarterly Journal of Florence Normal College, January 1911.

Florence Normal College Quarterly, Faculty Of Florence Normal College

Documents

Faculty Quarterly Journal of Florence Normal College, October 1910.

Florence Normal College Quarterly, Faculty Of Florence Normal College

Documents

Faculty Quarterly Journal of Florence Normal College, May 1910.

Florence Normal College Quarterly, Faculty Of Florence Normal College

Documents

Faculty Quarterly Journal of Florence Normal College, March 1910.

*Press of The Florence Times*

Phenological Overlap In Obligate Plant-Pollinator Mutualism, Austin J. Carlson

2026 Spring Honors Capstones Projects

Plant-pollinator mutualisms require temporal overlap between flowering and pollinator activity, so climate-driven timing shifts can weaken the interaction and, in severe cases, destabilize the system. This work investigates how reduced overlap affects persistence in an obligate plant-pollinator pair using a coupled differential equation model in which a phenological overlap factor scales the saturating mutualistic benefit. Simplification with a constant overlap enables closed-form equilibrium and stability analysis, revealing that below a critical overlap threshold, coexistence is no longer maintained. Rescaling reduces the parameter space from ten quantities to seven dimensionless groups, and sensitivity analysis identifies the degree of species dependence and …