Digital Commons Network^™

Integrating Perspectives Of People With Aphasia: A Holistic Approach To Community Aphasia Groups Within An Intensive Comprehensive Aphasia Program, Mckinlee A. Mihelish

Graduate Student Theses, Dissertations, & Professional Papers

Introduction: People with aphasia (PWA) experience chronic communication deficits that impact daily life. Community Aphasia Groups (CAGs) are commonly used to address these challenges and have demonstrated psychosocial and communicative benefits; however, they lack standardized structure and are implemented with variability across settings. Additionally, much of the existing research focuses on group-level outcomes rather than participant-driven priorities, limiting clinicians’ ability to tailor interventions. This study examined what PWA want from CAG participation and how these priorities may change over time.

Methods: This quantitative study investigated priority changes among PWA participating in a CAG within a summer 2025 Intensive Comprehensive Aphasia …

Initial Qualitative Inquiry Into Social Proverb Use And Acceptability, Emma K. Hinds

Graduate Student Theses, Dissertations, & Professional Papers

Currently,  1 in 36 individuals are diagnosed with autism spectrum disorder (ASD), which is characterized by social communication differences and restricted and/or repetitive behaviors. Many children with ASD also present with sensory, behavioral, and emotional differences, underscoring the need for specialized, evidence-based interventions. Social proverb is a novel intervention approach developed by Dr. Schoffer Closson that provides in-the-moment guidance by explicitly stating expected social behaviors and the rationale behind them (e.g., “We cover our coughs, so we don’t spread germs”). To date, no research has examined the use of social proverbs as an intervention strategy. The purpose of this qualitative …

From Environment To Population Dynamics: Integrating Physiology, Morphology, And Demography In A Montane Migratory Bird, Beverly Sunshine Domschot

Graduate Student Theses, Dissertations, & Professional Papers

Environmental variation shapes population dynamics by influencing how individuals acquire and allocate resources. However, the pathways linking environmental conditions to population-level outcomes remain difficult to resolve because they operate across multiple levels of biological organization. Traits such as physiology and morphology mediate these relationships by shaping how individuals respond to challenges and convert resources into survival and reproduction. Physiological traits can change rapidly in response to short-term conditions, whereas morphological traits reflect longer-term processes related to performance and energy balance. Despite their complementary roles, these traits are typically studied in isolation, limiting our ability to understand how environmental conditions propagate …

Embodied Women’S Health In The Pacific: Biocultural Pathways Of Hormones, Immunity, And Reproduction, Courtney Callidora Manthey

Graduate Student Theses, Dissertations, & Professional Papers

This dissertation examines women’s health through a biocultural framework that integrates biological anthropology, medical anthropology, and public health, with a central focus on the Pacific. It advances embodiment theory as a unifying approach for understanding how lived experience becomes biologically incorporated across the life course, shaping reproductive, endocrine, and immune outcomes. Grounded in research in Sāmoa and situated within broader comparative contexts in the United States and Amazonian populations, this work argues that women’s health cannot be fully understood through biomedical indicators alone, but must instead be interpreted within historically, culturally, and environmentally embedded Pacific contexts and beyond. The dissertation …

Evolution Of A Nitrogen-Fixing Endosymbiont And Integration With Its Diatom Host, Heidi Elizabeth Abresch

Graduate Student Theses, Dissertations, & Professional Papers

Endosymbiosis, where one cell lives inside of a different cell, is ubiquitous in nature and has enormous impacts on the ecology and evolution of both the host and the endosymbiont [1, 2]. These relationships exist along a continuum ranging from facultative—where both partners are able to live independently—to completely obligate—where partners can only survive in the presence of the other. The most famous examples being the chloroplast and mitochondrion [3]. After hundreds of millions or even billions of years of coevolution, highly-integrated endosymbionts are coordinated with the host on the genetic, metabolic, and cellular levels, but we do not understand …

The Evolution Of Ritual Violence And Identity At Paquimé, Lacy Jaide Hazelwood

Graduate Student Theses, Dissertations, & Professional Papers

The prehistoric site of Paquimé, located in the Casas Grandes region of northern Mexico, was a major regional center characterized by its complex sociopolitical organization, distinctive architecture, and evidence of ritualized behavior. Previous research has documented skeletal trauma and processing patterns consistent with ritual violence within the Paquimé skeletal assemblage, including human sacrifice and cannibalism. However, questions remain regarding the identities of these individuals and the reasoning behind their selection for targeted violence by the community. Did an individual’s age, biological sex, kinship affiliations, and/or migrant status predispose them to these ritually violent acts? To address these gaps, this dissertation …

A Psychogeography Of The Lower Colorado River Basin, Arren L. Kimbel-Sannit

Graduate Student Theses, Dissertations, & Professional Papers

Dried-up canals. Superheated strip malls. Proliferating data centers. Infinite appetite for growth despite its apparent circumstances. Arizona may well be the state of the American future. This multi-genre series of essays from Arren Kimbel-Sannit offers a personal, political-economic and ecological critique of growth and accumulation in Arizona — from the perspective of someone who grew up in its suburban expanses, reported on its politics, and long sought to clarify his relationship with home.

An Llm-Driven System For Doctor-Patient Simulation, Akilan Amithasagaran

Computer Science Theses

Effective physician-patient communication is fundamental to clinical competence, yet traditional simulation-based training methods using standardized patients and high-fidelity manikins are costly, resource-intensive, and difficult to scale. This dissertation presents CLiVR (Conversational Learning system in Virtual Reality), an LLM-driven system that integrates large language models and 3D avatars to simulate doctor-patient interactions for medical communication training.

CLiVR addresses three key limitations in existing virtual reality medical training platforms. First, the system operates on standalone Meta Quest 3 hardware with realistic 3D patient avatars featuring synchronized lip movements and speech-based interaction. Second, CLiVR grounds LLM responses using a curated syndrome-symptom database, constraining …

Essays On Election, Bianca Appel Kranzler

CGU Theses & Dissertations

This dissertation focuses on electoral accountability at the local and national levels. The first chapter focuses on judicial elections in Houston, while the last two chapters forecast the 2024 national election. This first chapter examines whether changes in local crime rates influence voter behavior in partisan judicial elections. Using precinct-level crime and election data from Houston, Texas, this study tests whether a quarterly increase in crime raises the probability that a voting precinct flips from a Democratic to a Republican majority in local district judge elections. A two-way fixed-effects model with precinct and year fixed effects is estimated across seven …

Bail Reform, Large Language Model Risk And Reasoning, William Wyatt

CGU Theses & Dissertations

This dissertation contains three studies. Each asks how rules or language change the choices people and machines make when outcomes are uncertain. The first study, written with Kiran John, evaluates California’s 2020 cashless bail reform. We use propensity score matching on arrestee records from the windows before and after implementation, and we test whether the shift away from cash bail produced any effect on subsequent offending. It did not. Matched comparisons yield small, statistically insignificant differences across every window we examined. That null result cuts against both sides of the public argument. The reform did not drive a spike in …

A Wellness Approach To Aging, Retirement, And Suicide Risk: Gerontological Considerations, Seth T. Robinson, Derek J. Lee

Adultspan Journal

Suicide risk in older adulthood represents complex interactions between developmental transitions; changing social contexts; and interactions between ecological context and individual perceptions of belongingness, burdensomeness, and hope. This paper presents an integrative,developmentally appropriate framework for conceptualizing and addressing suicide risk in older adulthood, which is grounded in the Indivisible Self model of wellness. Drawing on current empirical knowledge of wellness, suicidality, and older adulthood, this paper presents risk and protective factors associated with older adulthood through life transitions, changing social contexts, and other relevant factors. We present a novel integration of suicide intervention, wellness, and holistic care as a suitable …

Full-Time Career Retirement: A Black Man’S Narrative Of Survival And Protecting His Peace, Demetrius Cofield, Amaya Rakes

Adultspan Journal

Full-time career retirement is a major developmental transition that is often examined through race-neutral frameworks, leaving Black men’s experiences underexplored in counseling and aging scholarship. This perspective article centers the narrative of a retired Black man veteran who transitioned into full-time career retirement after decades of state employment. Using a narrative interview approach, this manuscript examines the factors that shaped his retirement decision and adjustment to later adulthood. The interview frames retirement as a process of self-preservation, continuity, and intentional living rather than identity loss or disengagement. Findings highlight the role of disciplined wellness practices and selective disengagement in promoting …

Structural And Intersectional Factors In Full Retirement: Insights For Black Men, Waleed Sami

Adultspan Journal

This interview centers the full retirement experience of Anthony Crawford. This perspective highlights the complex interplay between social determinants, intersectional identity, the psychology of working, and social class/social mobility, as key factors in his lived experiences. The relationship between structural factors and interpersonal factors continues to be a growth edge in counseling, as counselors frequently report lack of knowledge or comfort in their relationship with counseling. This interview seeks to fill the gap and demonstrate a concrete way to develop clinical insights. The full interview is transcribed and provided, along with practical and research implications for counselors working with populations …

Frame: Fast Reference-Based Ancestry Makeup Estimation Tool, Pramesh Shakya, Ardalan Naseri, Degui Zhi, Shaojie Zhang

Faculty, Staff and Student Publications

Motivation: The availability of large-scale genetic data presents a unique opportunity to study the genetic ancestries of individuals, which requires an efficient and scalable method. The existing global ancestry methods are accurate, but they cannot scale to large genetic datasets. Identity-by-descent (IBD) segments are DNA segments shared by individuals such that they are inherited from a common recent ancestor without recombination. These IBD segments, which reflect co-ancestry, provide an efficient alternative for inferring genetic ancestry.

Results: We introduced a reference-based global ancestry inference method called FRAME (Fast Reference-based Ancestry Makeup Estimation). FRAME utilizes partial local ancestry information estimated through IBD …

An Ensemble Classifier For Ordinal Outcomes In High-Dimensional Genomics Data, Heranga K. Rathnasekara, Sinjini Sikdar

Mathematics & Statistics Faculty Publications

Analysis of genomics data for predicting disease outcomes is a fast-growing field in medical research. There often exist categorical, specifically, ordinal outcomes that need to be predicted based on genomic profiles. This has led to recent development of some high-dimensional ordinal classification methods that can address the large dimensionality of the genomic covariate set. These high-dimensional ordinal models tend to vary widely in their performance depending on the data they are applied to and the evaluation criteria used. In this article, we outline an ensemble ordinal classifier that integrates different ordinal modeling approaches through bootstrap-based model evaluation, multi-metric performance assessment, …

Three Decades Of Classifying Threatened Species: Lessons Learned From And About The Iucn Red List Criteria For Quantifying Extinction Risk, H. Resit Akçakaya, E. J. Milner-Gulland, Mike Hoffmann, Helen M. Regan, Ilona Naujokaitis-Lewis, Andre E. Punt, Kevin J. Gaston, David A. Keith, Stuart H. M. Butchart, Simon N. Stuart, Nigel J. Collar, Moreno Di Marco, Monika Bohm, Alex J. Berryman, David P. Mallon, Axel Hochkirch, Nicholas K. Dulvy, Malin Rivers, Thomas M. Brooks, James R. S. Westrip, Jonathan Paul Rodriguez, Craig Hilton-Taylor, Janet Scott, Simon Tarr, Sophie H. Ledger, Christi Linardich

Biological Sciences Faculty Publications

The IUCN Red List of Threatened Species, the most widely used global system for assessing species' extinction risk, has become a foundational source of information for conservation management, policy and research. Since the adoption of quantitative extinction risk criteria more than three decades ago, the Red List has expanded substantially in scope and influence, informing decisions ranging from species conservation and protected area designation to international agreements, corporate risk assessments and global biodiversity indicators. Given its central role, maintaining scientific rigour, transparency and trust in the Red List system is essential. Feedback from users, emerging from evolving applications and scientific …

Self-Assembly Of Anti-Inflammatory Peptide Amphiphiles For Mucosal Health, Maria José Gómara, Ignacio Pérez-Pomeda, Ramon Pons, Paul Ziprin, Carolina Herrera, Isabel Haro

CONRAD Publications

Broad spectrum anti-inflammatory peptide amphiphiles (AIF-PAs) have been developed as an innovative strategy for the treatment of chronic mucosal inflammation and the prevention of HIV transmission. Novel lipopeptides based on two linear sequences of anti-inflammatory peptides were obtained by solid-phase peptide chemistry. In a pilot study, ex vivo exposure of colorectal tissue explants from Crohn's disease patients to AIF-PAs induced a downregulation of the proinflammatory profile. Furthermore, the HIV inhibitory potency of AIF-PAs was evaluated ex vivo in colorectal tissue explants, obtaining sub-micromolar IC₅₀ values. Characterization of AIF-PAs self-aggregation in aqueous solution revealed that the net charge distribution within the …

Characterization Of Phytoplankton-Excreted Metabolites Mediating Carbon Flux Through The Surface Ocean, Yuting Zhu, Hanna S. Anderson, Eli Salcedo, Samuel E. Miller, Krista Longnecker, Melissa C. Kido Soule, Sheean T. Haley, Gretchen J. Swarr, Rogier Braakman, Sonya T. Dyhrman, Elizabeth B. Kujawinski

Chemistry & Biochemistry Faculty Publications

The marine labile dissolved organic carbon (DOC) pool is a dynamic reservoir of thousands of molecules that cycles approximately one-quarter of Earth’s primary production within days to weeks. After excretion by phytoplankton and other microbes, metabolites are rapidly consumed, resulting in low standing concentrations (picomolar to low nanomolar). Despite the decades-long search for labile DOC sources and molecular identities, marine phytoplankton exometabolomes are not well characterized, largely due to difficulties in measuring small polar molecules in saline water. Here, we profiled the exometabolomes of six axenic phytoplankton species representing key functional groups including a diatom (Thalassiosira pseudonana CCMP1335), a …

Larval Genomics As A Viable, Fisheries-Independent Tool For Investigating Population Structure In Tropical Pacific Tunas, Jacob E. Jaskiel, Hannah E. Aichelman, Giulia Anderson, Louw Claassens, James E. Fifer, Christina M. Hernandez, Alexa K. Huzar, Joel K. Llopiz, Jan W. Witting, Sean P. Mullen, Randi D. Rotjan

Biological Sciences Faculty Publications

Understanding how dispersal, life history, and environmental variability shape genetic connectivity in the open ocean remains a central challenge in evolutionary biology. Highly migratory marine predators like tunas have traditionally been considered genetically homogeneous across ocean basins, yet emerging genomic evidence suggests that cryptic population structure can persist even in species with high gene flow and large effective population sizes. We used 2bRAD sequencing of 348 larval and subadult skipjack (Katsuwonus pelamis), yellowfin (Thunnus albacares), and bigeye tuna (T. obesus) collected from the central Pacific across 7 years of sampling to examine species boundaries, …

A Re-Evaluation Of Atlantic Bluefin Tuna (Thunnus Thynnus) Spawning Distribution In The Western Atlantic Ocean, David E. Richardson, Katrin E. Marancik, Malgorzata Adamus, Elizabeth A. Broughton, Robert K. Cowen, Trika Gerard, Christina M. Hernández, John J. Hoey, Joel K. Llopiz, Molly E. Lutcavage, Estrella Malca, Debra L. Palka, Lourdes Vásquez-Yeomans, Harvey J. Walsh, C. Michelle Willis, Glenn A. Zapfe

Biological Sciences Faculty Publications

There is currently a lack of consensus on the spatial, seasonal and decadal-scale patterns of Atlantic bluefin tuna (Thunnus thynnus) spawning in the western Atlantic Ocean. We compiled ichthyoplankton and reproductive data to characterize bluefin spawning patterns and the uncertainty in these patterns. Ichthyoplankton data indicates that bluefin spawn in the Gulf of America/Gulf of Mexico, northwest Caribbean Sea, north of the Bahamas, along the inshore edge of the Florida Current off the Carolinas and in the western Slope Sea. Reproductive studies identified these same spawning areas, as well as the Windward Passage and waters east of the …

Nonpyrogenic "Black" Nitrogen Likely Plays A Major Yet Underrecognized Role In The Global Nitrogen Cycle, João Vitor Dos Santos, Aleksandar I. Goranov, Kyle M. Lambert, Theodoro Da Rosa Salles, Susan J. Carter, Ann Pearson, Patrick G. Hatcher

Chemistry & Biochemistry Faculty Publications

Condensed aromatic nitrogen (ConAN) is commonly found in soil and aquatic environments. ConAN is broadly viewed by the biogeochemistry community as a combustion-derived product leading to its frequent designation as pyrogenic “black” nitrogen. Here, we provide evidence that ConAN can also form through nonpyrogenic pathways. In an experiment simulating biomass oxidation, pine wood boards assembled with iron nails were exposed to 12 years of natural environmental conditions. Nitrogen concentrations increased from 0.2 to 1.2 wt % with increasing proximity to the nail. Ultrahigh resolution mass spectrometry showed enrichment of nitrogen-containing compounds within the lignin and condensed aromatic domains. X-ray spectroscopic …

Multidentate Surfactant-Dependent Synthesis Of Giant Iridium Superstructures, Ramjee Balasubramanian, Maeren E. Hill

Chemistry & Biochemistry Faculty Publications

Giant superstructures of iridium, comprised of smaller spherical and slightly larger anisotropic nanoparticles, were synthesized by reducing iridium chloride in the presence of resorcinarene, a class of tetrameric macrocyclic polyphenols, with sodium borohydride in ethanol in 30 min under mild conditions. These superstructures were characterized by a range of techniques including TEM, HRTEM, EDS and other spectroscopic methods. The impact of the macrocyclic surfactant, its features and reaction conditions in dictating the formation of giant iridium superstructures was evaluated. The packing density of nanoparticles in these giant iridium superstructures could be altered qualitatively by varying the duration of the reaction, …

The Acquisition Of English Proficiency By English Language Learners In The Elementary Grades: An Event History Analysis, Elisabete Sousa

Selected Full Text Dissertations, 2011-

It is important that educators develop a deeper understanding of the process by which English Language Learners (ELL) acquire English proficiency. This hypothesis-generating event history study followed 285 Grade K-5 ELLs in a suburban public school district in New York State. Its longitudinal component used Kaplan-Meier techniques to provide a descriptive foundation and then conducted discrete-time event history analyses using binary logistic regression to create parametric life tables, analyze the effects of dual-language instruction and other factors, and estimate transition times between proficiency categories and overall. The cross-sectional component employed ordered logistic regression to analyze selected effects on classification into …

The Utility And Application Of Exposure And Response Prevention For Religious Scrupulosity In Orthodox Jews: A Critical Literature Review, Michael (Avi) Gurell M.S.

Selected Full Text Dissertations, 2011-

Religious scrupulosity is a subset of obsessive-compulsive disorder (OCD) characterized by obsessions and compulsions related to religious beliefs and observances (Abramowitz et al., 2002; Miller & Hedges, 2008). Exposure and response prevention (E/RP) is the most effective psychological intervention for OCD and is also the recommended treatment for religious scrupulosity (Abramowitz, 2006; Abramowitz & Buchholtz, 2020). Orthodox Judaism has a set of beliefs and observances, some of which may challenge the appropriateness of using E/RP in this population (Huppert et al., 2007; Huppert & Siev, 2010). Although studies (e.g., Bonchek & Greenberg, 2009; Greenberg & Shefler, 2008) have examined aspects …

Mothers' Perspectives Of Behavioral Parent Training: A Qualitative Study, Ryan Schare M.S.

Selected Full Text Dissertations, 2011-

Externalizing disorders such as oppositional defiant disorder, conduct disorder, and attention deficit hyperactivity disorder are the most common difficulties children face, with only half of children with these diagnoses receiving mental health treatment (Ghandour et al., 2019). Behavioral parent training (BPT) has been shown to be effective for treating externalizing disorders, yet parents exhibit low attendance and high dropout rates (Chacko et al., 2016). Researchers have examined parental acceptability of specific BPT skills (e.g., Calzada et al., 2013); however, no studies have focused on parents’ perceptions of BPT as an overall treatment package prior to participating in BPT. The present …

References, Appendices & All Parts Merged, Konstantin Likharev

Essential Graduate Physics

Includes: Appendix MA: Selected Mathematical Formulas; Appendix UCA: Selected Physical Units and Constants; References; EGP merged file (all parts, appendices, and references)

Pastors In Crisis: A Proactive Prayer Life As A Measure Against Pastoral Burnout, Seth W. Hinrichs

All Electronic Theses and Dissertations

This Doctor of Ministry project examines the relationship between a proactive prayer life and pastoral burnout among senior pastors in Converge North Central churches. Addressing the increasing prevalence of burnout in vocational ministry, the study reframes burnout as a fundamentally theological issue rather than merely a psychological or organizational problem. Drawing on the work of Ray Anderson and others, the project argues that burnout reflects a misalignment between a pastor’s lived theology—particularly in identity, calling, and dependence on God—and the realities of ministry practice. The research integrates biblical-theological reflection, a review of contemporary literature, and quantitative field research through a …

A Critical Discourse Analysis Of Racial Justice In Virginia Higher Education, Abigail Green

Honors Theses

This honors thesis examines the extent to which public Virginia higher education institutions engage their institutional histories in leadership rhetoric when responding to the Trump administration’s anti-diversity, equity, and inclusion (DEI) policies. Employing a Critical Discourse Analysis (CDA) following Mullet’s (2018) seven-step framework with an inductive coding approach and grounded in rhetorical history theory, this study analyzes official statements from the Offices of the President and Provost across four case study institutions: the University of Virginia (UVA), George Mason University (GMU), the College of William & Mary (W&M), and Longwood University (LU). Data sources span two time periods: May 2020 …

From Shock To Routine: The Evolving Impact Of Shutdown-Related Sentiment On Stock Markets, Yiran Shao

Honors Theses

To address gaps in existing research, this paper selects two U.S. government shutdown periods, 2018-2019 and 2025, as research samples to explore the effect of policy uncertainty on sentiment. This paper primarily analyzes the following two research questions.

First, what is the correlation between government shutdown-related sentiment during the shutdown period and daily market fluctuations? Specifically, can the sentiment index constructed from shutdown-related news effectively predict the next-day stock return during the event period?

Second, does the market have a learning effect? That is, between 2018-2019 and 2025, has the relationship between shutdown-related emotions and market outcomes weakened, shortened the …

How To Evaluate Non-Majority Control: What History And Statutes Tell Us—Part Ii: The Definitional Consensus, J. Travis Laster

Fordham Journal of Corporate & Financial Law

This Article and a companion piece explore the claim that the functional school was novel and anomalous. The companion article examines the approaches that courts have historically taken when evaluating non-majority control (the “Historical Article”). The Historical Article demonstrates that functionalism has been the dominant approach since at least 1912, while the formal school is a recent innovation. Its tenets emerged in 2006 and coalesced in a recognizable framework around 2014. The Historical Article identifies the core claims of the two schools. 

This Article examines statutory definitions of control. It focuses on statutory regimes that use the concept of control …