Digital Commons Network^™

Determining Diagnostic Criteria To Define Infant Swallowing Through Dyad Interviews With Experts, Evon Youkhana

Speech and Hearing Sciences ETDs

INTRODUCTION: With the increasing incidence of pediatric dysphagia, understanding what constitutes normal swallowing is essential to identifying aberrant swallowing. The purpose of this investigation is to understand how expert clinicians define swallowing disorders in infants and young children through a qualitative analysis of clinical decision-making processes.

METHODS: Data collection occurred in two phases. Phase I consisted of an online survey, which gathered demographic information and expert opinions on pediatric feeding and swallowing assessments. Phase II consisted of two dyad interviews to discuss key clinical and instrumental components important in determining the presence or absence of swallowing problems in infants and …

Between Two Countries: The Impact Of Globalization And Deglobalization On Generation 1.5 Chinese International Students In The U.S., Meiyi Jin

Communication ETDs

This study examines how Generation 1.5 Chinese international students, those who moved to the U.S. as teenagers and completed secondary education there, construct their identities amid globalization and the growing trend of deglobalization. Through in-depth interviews with 10 participants, it explores how they navigate their transnational experiences, negotiate belonging, and respond to shifting cultural expectations and perceptions from both China and the U.S. Using critical thematic analysis, the study goes beyond identifying recurring themes by analyzing the power relations, discourses, and sociopolitical dynamics that shape participants’ experiences. Findings reveal that geopolitical tensions, restrictive policies, and evolving public discourse in both …

Challenging $\Lambda$Cdm: Unraveling Cosmic Distances, Dark Sector Phenomenology, And Alternative Primordial B-Mode Sources, Kylar L. Greene

Physics & Astronomy ETDs

The dominant Lambda Cold Dark Matter (LCDM) cosmological model, while remarkably successful, increasingly shows signs that it may not fully describe our Universe, as persistent tensions in expansion rates and structure formation remain unresolved. In this thesis, I challenge the LCDM paradigm using novel theoretical frameworks combined with rigorous numerical analyses. I demonstrate that the expansion-rate tension fundamentally reflects underlying distance disagreements, and that the Thomson scattering rate strongly restricts higher pre-recombination expansion rates without additional physics. Further, I present a novel cosmological model using a mirror dark sector and varying fundamental constants, revealing an observational degeneracy allowing significantly higher …

The Effects Of Crf1 Antagonism On Spatial Navigation And Long-Term Potentiation In The Tgf344-Ad Model Of Alzheimer’S Disease, Nicole C. Reyna

Psychology ETDs

Alzheimer’s disease is characterized by neurobiological deterioration and cognitive impairment that is irreversible. Alzheimer’s disease patients exhibit increased stress system abnormalities including upregulation of the corticotropin releasing factor type 1 receptor (CRF1) and elevated levels of cortisol. People experiencing increased psychological distress in life are more likely to be diagnosed with Alzheimer’s disease and experience faster rates of neurocognitive decline. Therefore, the current dissertation aimed to examine the underlying systems involved in Alzheimer’s disease neuropathology and stress. Administration of the CRF1 antagonist, Antalarmin, reduces AD pathogenesis and anxiety-like behavior in models of Alzheimer’s disease. Thus, the current project used the …

Physiological Regulation And Paths To Social Status In Chimpanzees, Megan F. Cole

Anthropology ETDs

In this dissertation, I leverage longitudinal comparative data from naturalistic chimpanzee populations to examine the evolutionary context for healthy aging and cooperative leadership. First, I use health data from semi-free-ranging chimpanzees living at African sanctuaries (2012-2023) to demonstrate that the effects of diet and exercise that promote healthy aging in humans are shared with chimpanzees. Semi-free-ranging chimpanzees exhibit a slower pace of biological aging compared to sedentary laboratory chimpanzees (Chapter 2). Sanctuary chimpanzees also have healthier inflammatory profiles, with no evidence of chronic inflammaging (Chapter 3). Second, I use hormonal and behavioral data from wild chimpanzees at Kanyawara (2005-2019) to …

"To Hold For Themselves, Their Children, And Their Heirs": The Saga Of Mexicano Settlement In The Lower Estancia Valley, 1800-1925, Javier E. Sanchez

History ETDs

This dissertation focuses on the mexicano settlement experience in central New Mexico’s lower Estancia Valley, where local settlers co-opted the settlement strategies and traditions of three successive political regimes and experienced a net gain in land ownership over the course of the Long 19^th Century. It invokes four major themes: settlement, culture, economics, and parentela (kinship). Regarding settlement, it explores the mechanics of mexicano frontier settlement traditions and illuminates how deeply rooted concepts such as presura, an ancient method of settling embattled frontier zones through seizure, occupancy, and utilization by the settlers themselves, are reflected in settlement patterns …

Women In The Traditional Gender System Through Sexualized And Inappropriate Performances In The Modern Advertisements, Ruoning Xia

Communication ETDs

This study examined the body and gender identity performances and narratives of women in different Chinese advertisements, and deconstructed the motivation and representation of humiliation, sexual harassment, and gender offside toward women in public spaces. The study takes feminism, patriarchal capitalism, and rhetorical criticism to analyze the situation of Chinese women’s identity and gender in the traditional gender system, as well as the status of women’s situations with patriarchy and capitalism discourses. Through the analysis of the advertisements, the study criticized the gender (mis)representation of women’s gender identity and bodies among women's identities, bodies, and patriarchy, and deconstructs the gender …

Organizing In The Hybrid Media System: Local And International Organizing In The Metoo Movement, Jenna Dole

Sociology ETDs

Movements today are operating in a hybrid media system, in which activists negotiate the use of traditional and social media. Although most of what we know of the MeToo movement comes from studies of the #MeToo campaign and online organizing, the movement has its foundations in local organizing and in the wake of the viral campaign additional local organizing efforts took place. Using semi-structured interviews with leaders of a local MeToo organizing group and Facebook posts from this local group and a large, international MeToo Facebook group, this study explores the role of local organizing coming out of an international, …

A Computational Method For Detecting Compound Promiscuity In Early-Stage Pharmaceutical Discovery, John Allen Ringer

Computer Science ETDs

Modern drug discovery and chemical biology research relies heavily on analyzing bioassay data. One of the many challenges in bioassay data analysis is identifying false trails, i.e., chemical compounds which initially appear to have desirable activity but are found to be problematic upon further investigation. Badapple (the BioAssay-Data Associative Promiscuity Pattern Learning Engine) was created over ten years ago to help researchers identify promiscuous compounds and thus avoid a common source of these false trails. Through an effort involving software engineering, cheminformatics, and biomedical data science we have developed Badapple 2.0, which incorporates updated assay records and expanded data semantics. …

Moral Incongruence And Internet Gaming Disorder, Regina Tahk

Psychology ETDs

Internet Gaming Disorder (IGD) lacks clear diagnostic thresholds, with self-reported addiction often serving as the primary indicator of problematic gaming. However, little research has explored factors influencing these self-perceptions. This study examined whether moral incongruence—defined as the interaction between gaming frequency and moral disapproval of gaming—predicts self-reported gaming addiction. Using secondary data from a U.S. census-matched YouGov sample (n = 2,813), moderation analyses found that moral incongruence significantly strengthened the association between gaming frequency and self-reported addiction when using the validated Ten-Item Internet Gaming Disorder Test (IGDT-10), but not when using the unvalidated NIDA-ASSIST gaming item. Robustness checks using censored …

Partnering For Youth Empowerment: Establishing Boys And Girls Clubs In Tribal Communities, Johnny Abeyta Jr.

Teacher Education, Educational Leadership & Policy ETDs

This study examined why Boys and Girls Clubs are not available in every tribal community and explored how culturally grounded youth programs support leadership, identity, and sovereignty. Using Tribal Critical Race Theory, Narrative Inquiry, and Indigenous Research Methods, the study centered the voices of Pueblo leaders, educators, policymakers, and alumni. Interviews identified barriers related to funding, transportation, facilities, and policy alignment. Participants described culture, mentorship, and safe spaces as essential for youth belonging and empowerment. The study introduced the Relational Sovereignty Model, which explains how cultural teachings, shared learning, resilience, and community care work together to support Indigenous youth. The …

Negotiating (Im)Migrant Identity In The (Un)Assimilated Nation: American Literature Of The Late Nineteenth Century, Haley M. Steffens

English Language and Literature ETDs

This dissertation examines representations of immigration, assimilation, and multinational cultural identity in late nineteenth-century American literature, autobiography, and print culture. Through a comparative analysis of diverse authors and immigrant communities, the project explores how literary and popular culture narratives framed the expectations and limitations of assimilation for disparate populations. By contextualizing these works within historical immigration policies, labor economies, government instability, and burgeoning nationalism, this study reveals how fiction and media shaped public attitudes toward assimilation and influenced policy. Ultimately, this dissertation argues that late, long-nineteenth-century literature functioned as both a reflection of and response to national debates about immigration, …

You Are What You Spray: How New Mexico Can Better Protect Farmworkers From Pesticides, Rachel Swanteson-Franz

Natural Resources Journal

The impact of pesticides on farmworkers is at the intersection of environmental and labor law. Existing federal regulations designed to protect farmworkers from pesticide exposure and illness have failed to adequately do so. While some states have tried to fill these gaps by enacting state regulations, New Mexico is not one of them. However, by borrowing and combining regulatory protections from other states, New Mexico could become a leader in this area. This note first provides a detailed summary of the federal protections and the regulatory history while summarizing criticisms from farmworker advocates. Next, it provides a comprehensive overview of …

Inclusive Workforce Development For An Equitable Low-Carbon Transition, Shannon Sanchez-Youngman, Gabriel Pacyniak, Melanie Sayuri Sonntag, Addison Fulton

Natural Resources Journal

The shift to a low-carbon economy will require a massive build out of low-carbon technologies, which in turn will require millions of new laborers with specific skills. Similarly, the decline of fossil-fuel industries will require retraining and new job opportunities for laborers in these fields. At the same time, there is an emerging scholarly focus on a “just transition” to a low-carbon economy. This essay conceptualizes inclusive workforce development as a key component of a just transition. Inclusive workforce development promotes policies that reach and effectively serve the broadest possible range of people and communities. In particular, inclusive workforce development …

Water Governance And Water Futures In The United States And Australia, Robert Haskell Abrams

Natural Resources Journal

The world’s hydroclimate has become more extreme in the last several decades—a phenomenon described in technical terms as the loss of stationarity. Focusing particularly on the drought-induced stresses, this Article examines water governance in the American West and Australia seeking aspects in the laws, institutions, and approaches of each nation that could be adapted to advantage by the other in coping with the onset of reduced flows in major river basins—most prominently, the Colorado in the U.S. and the Murray-Darling in Australia. Significant similarities of history, settlement of arid regions, and legal systems abound. These include Anglo settlement bringing riparian …

Aerial Robotic Studies Of Volcanic Co2 Emissions, John Ericksen

Computer Science ETDs

Volcanic systems are inherently complex, involving dynamic interactions among magma flow, gas emissions, and atmospheric dispersion. This dissertation focuses on developing and analyzing autonomous UAS algorithms for efficiently surveying volcanic CO2 plumes, introducing several novel methods: the LoCUS algorithm, a swarm coordination and self-healing algorithm that supports gradient-based plume tracking, a transect-based technique that employs a 2D Gaussian fit to calculate CO2 plume flux, and the Sketch algorithm for rapid plume boundary tracing. By treating multiple UAS as a single scientific instrument, these methods leverage swarm algorithms to use in-situ data in ways impossible with individual drones. Validated through simulations …

Design Of A Subthreshold Cmos Inverter-Based Amplifier For Low-Noise And Low-Power Applications, Landon Alexander Schmucker

Electrical and Computer Engineering ETDs

Amplification is a fundamental function in most analog circuits. There is a fast-growing demand for low-power, low-noise, and high-gain amplifiers. Modern semiconductor processes are increasingly optimized for digital applications, which has introduced new challenges in analog design. To address these challenges, analog designers have investigated replacing conventional analog circuits with digital implementations. One promising application is the typical CMOS inverter as an amplifier.

This research presents a CMOS inverter-based amplifier with feedback designed to achieve low power consumption, low input noise, and high gain. Unlike typical CMOS inverter-based amplifiers, this topology has two distinctive features: (1) it uses a MOSFET …

Architecture And The Organization Of Labor At Tsegi Phase (Ad 1250-1300) Cliff Dwellings, Navajo National Monument, Katharine M. Williams

Anthropology ETDs

This study focuses on the organization of architectural labor at Betatakin and Keet Seel during the Tsegi Phase (AD 1250-1300). The goal of this project is to identify whether people worked together as households, suprahouseholds, communities, or had specialists come in to build. I document variability in architectural attributes across rooms within individual houses, which is then linked to builder choices, and thus allows for the identification of architectural products associated with discrete production groups. Builders that work together share their decisions to the extent that their output is distinct from the work of others. This project expands on traditional …

Insights Into Fluid-Rock Interactions On The Cv3 Chondrite Parent Body Through The Use Of Secondary Garnets In The Allende Cv3 Chondrite And Terrestrial Skarns, Jessica Marie Johnson

Earth and Planetary Sciences ETDs

Garnets are valuable for studying geologic processes, particularly fluid-rock interactions in terrestrial skarns. This dissertation examines secondary garnets and associated Ca-Fe silicates in Allende-like CV3 chondrites and terrestrial skarns to assess garnets as recorders of fluid-rock interactions. Chapter 2 investigates garnets from the Willsboro-Lewis skarn, revealing that mineral separate techniques misrepresent rare earth element (REE) signatures. Chapter 3 examines garnets and clinopyroxenes from the Victorio Mining District skarn, showing that REE incorporation was controlled by fluid composition rather than crystal chemistry. Chapters 4 and 5 focus on extraterrestrial samples. Chapter 4 finds that garnets and pyroxenes in Allende CV3 matrix …

Instability-Driven Phase Separation For Quantum Structure Formation In Iii-V Semiconductors, Leonid Miroshnik

Chemical and Biological Engineering ETDs

High temperature phase instability limits the performance of III-V zinc blende semiconductor devices. A technique using an encapsulant and sacrificial layer is developed to reduce thermal degradation by group V sublimation during thermal processing of InGaAs/GaAs structures. This technique is successful in preventing As sublimation and preserving an atomically smooth surface required for surface-sensitive characterization. The degradation of the GaAsSb/InP interface by phase separation is studied. Significant interdiffusion and intermixing occurs due to the formation of a molten InSb at the interface. The intermixing is driven by phase separation and melting of the InSb interfacial layer that enhances atomic mobility. …

The Role-Space Of Italian Sign Language Educational Interpreters: An Ethnographic Case Study Of Interpreters At The Istituto Comprensivo Di Cossato, Martin A. Crudo

Language, Literacy, and Sociocultural Studies ETDs

This dissertation explores the role-space of educational interpreters at IC Cossato, an Italian public school known for its Bilingualism Project promoting LIS-Italian bilingualism and biliteracy (Rivisto, 2016; Teruggi, 2003). Role-space theory (Lee, 2023; Llewellyn-Jones & Lee, 2013, 2014) conceptualizes interpreters’ roles as dynamic and co-constructed with interlocutors along three axes: Presentation of Self, Interaction Management, and Participant Alignment. Through ethnographic interviews (Spradley, 2016), observations and field notes (Emerson et al. 2011; Glesne, 2016), and policy artifacts (Hornberger & Johnson, 2011), I investigate how three interpreters in IC Cossato’s elementary school perceive and enact their roles, often diverging from their …

Peripheral Neuroimmune Mechanisms Of Chronic Back Pain, Aleyah Esther Goins

Biomedical Sciences ETDs

Chronic back pain (CBP) affects 1 in 10 people worldwide, reducing mobility, productivity, and quality of life. Despite its prevalence, non-addictive treatments remain limited due to an incomplete understanding of chronic pain mechanisms. This dissertation examines peripheral neuroimmune interactions in CBP using a urokinase-type plasminogen activator (uPA)-induced mouse model (uPA-CBP). uPA, a pro-inflammatory serine protease, was injected into the L2/L3 lumbar spinous ligament, inducing prolonged mechanical and cold hypersensitivity. Flow cytometry of dorsal root ganglia (DRG) showed increased CD45+CD11b+ myeloid cells in males and CD45+CD3+CD4+ lymphocytes in females. DRG neurons from male uPA-CBP mice exhibited heightened action potential firing. Pharmacological …

Sub Terra, Daniel J. Forest

MFA Thesis Exhibit Catalogs

Abstract

Sub Terra is an immersive exhibition that renders intangible states of mind through sculptural installation. These constructions speak to internalized angst and complexity, mirroring what is seldom looked at, witnessed, or acknowledged. Many symbolic elements are suspended from either the walls and ceiling or within constructed frames, evoking entanglement. My work is an attempt to express the emotion turmoil inherent to living in an increasingly bureaucratic society and its effect on someone with an anxiety disorder.

The fabrication entails several broad skill sets, requiring familiarity with psychology, physiology, fine woodworking, ceramics, felting, and drafting. Preliminary sketches guided construction and …

Policy Analysis Of Assessments To Award Seals Of Biliteracy In Spanish In The United States, Lisa J. Harmon-Martínez

Teacher Education, Educational Leadership & Policy ETDs

The Seal of Biliteracy (SoBL) honors high school graduates demonstrating proficiency in two or more languages, yet its policies often perpetuate inequities. Focusing on New Mexico and Spanish language assessments, I explored how the SoBL's recognition of bilingualism intersects with biases against Spanish speakers. While the SoBL aims to celebrate bilingualism, disparities arise from state-to-state variations in assessment requirements, particularly affecting Spanish-speaking students and those receiving English Language Development services. Many states rely on standardized exams that inadequately capture students’ linguistic abilities, exacerbating inequalities. Using an Open Systems policy framework and Translanguaging theory, which values students’ full linguistic repertoires, I …

Algorithms To Estimate Contours: Two Applications Of Analytical Tools In Differential Geometry And Topology, Mohammad Abirul Islam

Computer Science ETDs

We develop distributed robotics algorithms with analytical tools needed to define and analyze angle turned and distance traversed by robots executing geometric algorithms. We then use these analytical tools to obtain information, via sensor measurements, about an a priori unknown surface. Our contributions are threefold. First, we develop the Sketch Algorithm, which estimates the boundary of any unknown contour and is asymptotically optimal in terms of distance traversed and angle turned. Second, we present experimental field work that validates the Sketch Algorithm. Finally, we propose an approach to find multiple sources of a surface with potential applications to approximate that …

Reconfiguration-Driven Assembly Of Inorganic Nanomembranes, Divya Jyoti Prakash

Chemical and Biological Engineering ETDs

This thesis focuses on the guided self-assembly of metastable nanomembranes (NMs) that are either amorphous or polycrystalline. Guided self-assembly of NMs is a robust and scalable method to obtain a variety of three-dimensional structures such as helices, rolled-up tubes, and networks of interconnected channels. These 3D structures have important applications as on-chip actuators, sensors, inductors, transformers, waveguides, and antennas. Furthermore, a large amount of strain and strain gradient can be imparted in NMs by bending them to a nanoscale and microscale radius of curvature, making guided self-assembly on NMs a viable route to extreme strain engineering of amorphous and polycrystalline …

Exercise And Its Regulation Of Toll-Like Receptor 4 Expression And Intracellular Signaling, Jeremy B. Ducharme

Health, Exercise, and Sports Sciences ETDs

Toll-like receptor 4 (TLR4) activation increases pro-inflammatory cytokine production and upregulation of muscle atrophy signaling pathways. Exercise is recommended to reduce TLR4 expression and intracellular signaling, but the mechanisms for how this occurs are unknown, and even less is known regarding the effect of exercise on TLR4 expressed in skeletal muscle. Activation of TLR4 expressed on skeletal muscle can elicit local metabolic and atrophic effects in addition to systemic inflammation from TLR4 activation on immune cells. Therefore, the purpose of this dissertation project is to better uncover the nature and mechanisms by which exercise affects TLR4 expression and intracellular signaling …

Perceptions Of Bullying In A Public Charter School, Ana I. Perea

Teacher Education, Educational Leadership & Policy ETDs

ABSTRACT

Bullying is perceived in different ways according to the experience or training of individuals. In my practice, adults often misidentify disputes or incidents as bullying due to a lack of evidence or varying perceptions. This problem must be a theme of reflection for all stakeholders in traditional or charter schools. My study aimed to understand how teachers and parents perceive bullying in terms of social implications, cultural factors, and professional training. In my research, I provided insight into how the stakeholders in a public charter school perceive this phenomenon. The participants highlighted their perceptions and topics of communication, exclusion, …

Rootless - The Body Remembers What The Mind Has Forgotten, Helena Omana-Zapata

Latin American Studies ETDs

In repurposing academic spaces for healing, this project is meant to culminate in an artefact that aligns with decolonial educational practices, focusing on accessibility. In doing so, this project braids multimodality, re-represented history, and testimonio of various genres: personal narrative, Latinx story and resistance, critical examination of history and reproductions of information to depict my experience of detaching from cultural identity through assimilation and acculturation in the United States in education. In what I have called the process of leaving me rootless, I no longer had access to the places, people, identity, or language that established belonging. However, through …

Rootless - The Body Remembers What The Mind Has Forgotten, Helena Omana-Zapata

Language, Literacy, and Sociocultural Studies ETDs

In repurposing academic spaces for healing, this project is meant to culminate in an artefact that aligns with decolonial educational practices, focusing on accessibility. In doing so, this project braids multimodality, re-represented history, and testimonio of various genres: personal narrative, Latinx story and resistance, critical examination of history and reproductions of information to depict my experience of detaching from cultural identity through assimilation and acculturation in the United States in education. In what I have called the process of leaving me rootless, I no longer had access to the places, people, identity, or language that established belonging. However, through …