Digital Commons Network^™

Teachings From The Hogan Floor: Preserving Culture And Language Through Museum Collections, Nonabah B. Sam

Teacher Education, Educational Leadership & Policy ETDs

In 2021, we faced the unexpected impacts of the 2020 COVID-19 pandemic, especially on the Navajo Nation. There were many things to realize, but one that hits hardest is the loss we suffered with many traditional practitioners passing from this illness. The purpose of this study was to examine linguistic and cultural contributions that Knowledge Keepers might consider making for the future of our Navajo Nation and Diné College. Drawing on my cultural teachings and knowledge, I conducted semi-structured interviews in Navajo and English with 10 participants, including leaders, alumni, staff, and traditional practitioners; I also utilized a circling back …

Distributed Energy Trading Models Utilizing Reinforcement Learning And Game-Theoretic Based Approaches In Smart Grids, Nicholas Kemp

Electrical and Computer Engineering ETDs

Community-driven energy initiatives have become crucial for effective energy management, particularly in trading and management. The rise of Distributed Energy Resources in smart grids demands a redesign of traditional Demand Response Management (DRM) models to account for prosumers' dynamic behavior in energy markets. Decentralization, including peer-to-peer (P2P) energy trading, is vital for resilience and sustainability. This thesis introduces two coalitional DRM models: one based on hedonic community formation games, and the other combining matching theory with coalition games. These models empower prosumers to autonomously select energy trading communities using partially available data. To optimize energy consumption, two additional models are …

Sofast Cad Layout Tool, Felicia Brimigion

Mechanical Engineering ETDs

Concentrating solar mirrors need to have correct geometry to accurately focus sunlight onto a receiver. SOFAST is a tool created at Sandia National Laboratories which measures a mirror’s surface normal at a dense sampling of points, enabling evaluation of a given mirror’s expected performance. SOFAST supports general mirrors, including concentrating solar heliostats, troughs, and dishes. The examples presented in this report predominantly focus on heliostats.

There are generally four major components of a SOFAST system – the mirror, camera, projector, and screen. For SOFAST to properly measure a mirror, the following geometric constraints must be satisfied:

1. The reflection of …

A Comparative Study Of Preferences Of Anglo And American Indian Children For Particular Visual Qualities, Frank Anton Alhelm

Teacher Education, Educational Leadership & Policy ETDs

The problem was to, seek the nature of differences, if any, between American Jndian and Anglo preferences for the same visual qualities by comparing children of grades 1, 3 and 6 of each gorup.

Method

Participants gave like and dislike responses to each of five particular visual qualities: linearity, angularity, curvilinearity, texture pattern and contrast. Each visual quality was arrayed as least amount, medium amount and most amount. The non-verbal survey instrument was judged to have high content validity by forty judges asked to match a primary and alternate form and to match the name to the visual quality. Coefficient …

Host-Microbiome Interactions In The Teleost Brain, Amir Mani Varnoosfaderani

Biology ETDs

This dissertation investigates host-microbial interactions within the teleost brain, previously considered sterile. Reviewing current literature highlights significant gaps in understanding teleost brain immunity, despite prevalent neurotropic diseases. We mapped the immune profiles of rainbow trout brains and meninges, revealing the olfactory bulbs as the immune effector part of the brain and the optic tectum as a nod2 expression hub. High il6 and il10 levels were noted in the telencephalon. A persistent bacterial community within healthy salmonid brains shares diversity with gut and blood microbiota. Brain bacterial isolates exhibit genomic signatures for brain colonization and polyamine biosynthesis. The microbiota shifts across …

A Usage-Based Account Of Ongoing Structural Changes In Sanapaná: Grammar Sketch And Case Studies, Jens E. L. Van Gysel

Linguistics ETDs

This dissertation presents three case studies on sociolinguistic variation in Sanapaná, an Enlhet-Enenlhet language spoken by around 1000 people in Paraguay. It investigates the impact of the process of language shift towards Paraguayan Guarani and Spanish that Sanapaná is undergoing. Specifically, it attempts to disentangle the effects of speakers’ multilingualism in Spanish and/or Guarani, their frequency of use of Sanapaná, and structural factors internal to Sanapaná on phonetic, morphological, and syntactic variation. It finds that Spanish/Guarani proficiency is correlated with L1-to-L2 convergence in Sanapaná vowel productions and use of different motion framing strategies, while frequency of Sanapaná usage is a …

Dental Hygiene Program Admission Criteria Key Indicators To National Board Success, Kacy Goetz

Dental Hygiene ETDs

The study evaluates the admission criteria of entry-level dental hygiene programs in the United States and their relationship to National Dental Hygiene Board Examination (NDHBE) success rates. An online survey was distributed to 327 programs, gathering data on admission criteria and NDHBE outcomes through a 16-question Microsoft Forms survey. With a response rate of 16% (53 respondents), the survey found that GPA was the most common admission criterion used by 92% of programs. The results indicated a strong negative correlation between high school GPA and NDHBE success. The study also evaluated NDHBE pass rates with board review courses taken. The …

A Comparison Of Cognitive Impairment In Health Anxiety, Generalized Anxiety Disorder, And Posttraumatic Stress Disorder And The Moderating Role Of Social Connectedness, Kaitlyn B. Schodt

Psychology ETDs

Mood symptomatology often negatively impacts cognitive functioning; however, little is known about how some disorders, like health anxiety, might be unique contributing factors. Social connectedness has been found to protect against cognitive decline, and thus might mitigate some of the mental health-related negative effects on cognitive functioning. The current study aimed to: 1) examine the associations between PTSD, generalized anxiety disorder (GAD), and health anxiety symptomatology and cognitive functioning, and between 2) social connectedness and cognitive functioning, as well as the moderating roles of 3) social connectedness and 4) biological sex and race/ethnicity in the association between mental health symptomatology …

Theoretical And Spectroscopic Insights Into Molybdenum- And Tungsten-Sulfur Bonding, Jesse Lepluart

Chemistry and Chemical Biology ETDs

Molybdenum and tungsten chemistry in biology is dominated by bonding interactions with sulfur and the other chalcogens. The highly-conserved structures of these enzymes’ active sites suggest an early evolution in the history of life, with molybdenum and/or tungsten enzymes likely expressed by the last universal common ancestor. Despite their active site similarities, molybdenum and tungsten enzymes catalyze a diverse array of reactions via equally diverse mechanisms. A deep understanding of the electronic structures of these enzyme active sites and their catalytic intermediates is key to understanding this remarkable chemistry.

The work presented here aims to deepen the understanding of molybdenum …

Trauma, Memory, Imagination, And Survivance: Uncovering Haunting Stories Within The Southwest Borderlands, Tania Paloma García

American Studies ETDs

This dissertation project explores hidden histories of the García/Espinosa/Sargent/Burns family in northern New Mexico/southern Colorado during the middle-to-late eighteenth/early nineteenth centuries, and continuing into the present. The project, in part, focuses on prominent rancher, lawyer, landowner, and territorial representative of New Mexico and Colorado, José Victór García. García’s life and legacy is examined regarding the lesser-known story of his “ownership” of several enslaved Indigenous youths on his property in Conejos County, Colorado. The methodology of haunting is employed to expose complex histories of Indigenous peoples in the Southwest borderlands, and within a broader context of colonialism. Indigenous enslavement is considered …

Assessing Dental Hygiene Students’ Perspectives: A Survey Of Curriculum Adequacy For Interdisciplinary Settings In U.S. Dental Hygiene Programs, Brittany Elaine Tripp

Dental Hygiene ETDs

This study investigated whether dental hygiene programs implement interdisciplinary care into their curriculum and assessed student preparedness for working in interdisciplinary settings. The study also aimed to identify student preferences for various interdisciplinary care settings. A survey was developed and distributed via email to program directors of accredited dental hygiene programs across the United States. Those programs directors were asked to forward the survey to currently enrolled final-year students. Out of eighty-two responses received, 16 were excluded because those respondents were not final-year dental hygiene students. Sixty-six participants were considered eligible for the survey (n=66). The results indicate that most …

Parallel Multigrid In Time For Chaotic Dynamical Systems, David Alan Vargas

Mathematics & Statistics ETDs

Despite the fact that Parallel-in-Time (PinT) methods are predicted to become necessary to fully utilize next-generation exa- and zettascale machines, there are currently no known practical methods which scale well with the length of the time-domain for chaotic problems, due to exponential dependence of the condition number on the fastest chaotic timescale. I present modifications to the coarse-grid equations along with a novel rediscretization approach which together greatly improve convergence of the multigrid reduction in time (MGRIT) algorithm and allow the first known PinT speedup for a chaotic PDE. The novel Local Shadowing Relaxation (LSR) is presented as an alternative …

Patterns Of Stand Structure And Species Composition Through Time And Space In A Piñon- Juniper Woodland In The Southwestern Us, Kyle H. Gonterman

Biology ETDs

Piñon- juniper (PJ) woodlands in the Southwest United States are expected to see mortality and structural change in response to climate change. The extent to which this habitat structures itself as well as its response to these changes over time are not well known yet and have not been examined to this extent for the location of this study within the Sevilleta National Wildlife Refuge. Within a small range, we discovered these woodlands consist of persistent woodland, shrubby woodland, and juniper savanna in which structural, spatial, and regeneration patterns differ. In this study, we discovered the specific differences between these …

Conservation Genomic Investigation Of A Threatened Trout Species Endemic To The Gila River, David Thomas Camak

Biology ETDs

Climate change is a looming threat to the persistence of species, especially aquatic, imperiled species. Species native to desert streams are at a particular disadvantage, as many species already face drought, floods, wildfires, and threats from nonnative species, all of which are thought to be exacerbated by climate change. Species such as the threatened Gila Trout (Oncorhynchus gilae) already have small ranges and persist in fragmented and isolated habitats that limits gene flow between populations. Therefore, it is important to understand the current genomic status of such populations to be able to predict the future effects of climate …

Proterozoic Tectonic Evolution Of The Lower Granite Gorge, Grand Canyon, Arizona: A Middle Crustal Record Of Multiple Orogenic Pulses, John M. Bailey

Earth and Planetary Sciences ETDs

The well-exposed basement transect in the Lower Granite Gorge (LGG) of western Grand Canyon provides a middle-crustal record of suturing crustal blocks during the Proterozoic accretionary history of southwestern Laurentia. Orogenic evolution included at least three stages: (1) subduction-related ~1.75-1.72 Ga volcanic arc magmatism, turbidite deposition, and suturing of arc terranes with different crustal thicknesses; (2) intense northwest-southeast crustal shortening at ca. 1.71-1.68 Ga to form the Vishnu Mountains during the Yavapai orogeny; (3) dextral strike-slip shear zones development at ~1.4 Ga during long-term crustal residence and slow cooling above ~250 °C (~10 km) until ~1.3 Ga. Final cooling from …

Articulation Of The Tongue Back In American English And Seoul Korean, Daejin Kim

Linguistics ETDs

The articulation of the tongue back in bilabial and velar obstruents in American English (AE) and Seoul Korean (SK) was examined using ultrasound, and the findings are discussed in terms of phonetic and phonological theories. AE voiced and SK aspirated and fortis bilabial obstruents were articulated with longer, larger, and more frequent tongue back displacement than voiceless and lenis ones. Speakers produced AE voiced and SK aspirated and fortis velar obstruents with longer and larger tongue back displacement than voiceless and lenis ones. These obstruents were further contrasted in relation to the timing of laryngeal actions. The finding that lingual …

Chemical And Morphological Characterization Of Airborne Particulate Matter At The Jackpile-Paguate Mine, Pueblo Of Laguna, New Mexico: Implications For Potential Metals Exposure, Andreanna C. Roros

Earth and Planetary Sciences ETDs

The inhalation of windblown particulate matter (PM) derived from abandoned uranium mines (AUMs) is a potential environmental health risk to Native American communities that live in proximity to these sites. However, the aeolian transport of metal-bearing PM from AUMs, as a potential exposure pathway, has not been investigated in any detail. In this study, we sampled airborne particulate matter within the Jackpile Mine located on the lands of the Pueblo of Laguna, New Mexico using passive sampling methods to understand the characteristics of dust within the mine site. The objective was to determine the elemental concentrations, mineralogy, and morphology of …

Coupled Monte Carlo And Adjoint Depletion Sensitivity Coefficient Methods, Benjamin R. Murphy

Nuclear Engineering ETDs

Recent advances in adjoint-based, continuous-energy Monte Carlo generalized perturbation theory (GPT) sensitivity coefficients are combined with adjoint-based depletion perturbation theory (DPT) sensitivities to obtain fully coupled depletion sensitivity coefficients in OpenMC. These depletion sensitivity coefficients are compared with direct perturbation results and found to have generally good agreement, though discrepancies exist. Some shortfalls of the DPT method include the inefficient initial numeric integration scheme for calculating the DPT sensitivities and the lack of stochastic uncertainty estimates for the DPT sensitivities. However, despite these shortcomings, the methodology provides the means to obtain high fidelity depletion sensitivity coefficients. With refinements to the …

Exploration Of Semiconductor Gain Medium, Resonator, Pump, And Frequency Stabilization For Laser Guide Star Applications, Mingyang Zhang

Optical Science and Engineering ETDs

Laser Guide Star (LGS) systems are essential for adaptive optics in ground-based astronomical observation. This dissertation demonstrates the feasibility of semiconductor-based LGS systems using the membrane external-cavity surface-emitting laser (MECSEL) platform, employing multiple quantum wells. Various laser cavity configurations were analyzed through simulations and experiments. The in-well pumping method was explored to reduce the quantum defect and address thermal limitations. Multi-pass pumping schemes were designed with Zemax modeling and demonstrated experimentally. To simplify multi-pass pumping, the hybrid-MECSEL (H-MECSEL) design was introduced. COMSOL modeling studied thermal management and thermal lensing effect.

The H-MECSEL achieved approximately 30 W of output power at …

A Cultural Responsiveness Model To Support Parent's Practices In Families With Autistic Children: A Culturally Relevant Self- Compassion Program For Nigerian Mothers, Ekene Anastesia Odumegwu

Individual, Family, and Community Education ETDs

The goal of this intervention of self-compassion, mindfulness, and self-kindness focuses on training Nigerian mothers raising autistic children to enhance their psychological well-being. The intervention will assist Nigeran mothers living in Nigeria with developing their self- compassion. Building resilience for Nigerian mothers' self-compassion will help them to improve their physical and psychological health by becoming more mindful of their own pains and suffering when raising their child with Autism. Also, the proposed intervention will help Nigerian mothers to focus their attention and energy on how ways that might reduce the trauma and challenges experienced in parenting children with autism.

This …

A Phenomenological Exploration Of Language Shift Of Ikalanga In Botswana: Implications For Language Revitalization, Annah Sephene Macha

Language, Literacy, and Sociocultural Studies ETDs

This study explores the phenomenon of language shift among the Bakalanga community in Botswana, focusing on the gradual displacement of the iKalanga language by dominant languages such as Setswana and English that hold official status for education and broader communication. iKalanga faces significant challenges, as minority languages face extinction globally, the Bakalanga’s experience reflects broader trends where dominant languages supplant indigenous ones in education and wider communication. This research employed a phenomenological approach to investigate how the Bakalanga transmit knowledge amidst this language shift. Data was collected through focus groups, life history narratives, documents, and individual interviews, and analyzed using …

Media Road To Violence: A Process Of Racialization Of Rohingya Ethnic Minority, Md Didarul Islam

Communication ETDs

ABSTRACT

This dissertation examines how ideologically loaded news media representations advanced the complex and ambiguous process of racialization of the Rohingyas, an ethnic Muslim minority in Myanmar. This study first interrogates the dominant patterns in news sourcing and thematic emphasis in the coverage of Rohingya; secondly, it sheds light on how these representations contribute to reproducing dominant ideologies and power relations. I selected two English-language newspapers published in Myanmar: The Global New Light of Myanmar and the Myanmar Times. I applied the notions of media representation (Hall, 1997), ideology (Althusser, 2007), and racialization (Garner & Selod, 2015) as the central …

Insight Into Complexity: Novel Information Theoretic Analysis Of Spatiotemporal Interactions, Humayra Tasnim

Computer Science ETDs

Complex systems are comprised of different components. Interactions and associations among these components define the functionality of the system. For example, T cells must directly interact with virally infected cells to kill them. This research characterizes the most relevant components of complex systems by analyzing interacting relationships using information theoretic measures. It emphasizes the importance of spatial and temporal dynamics, which occur when components share spatial proximities or temporal sequences. Novel information theoretic analyses are proposed for quantifying the degree of association among system components, which is key to defining the spatiotemporal dynamics. One focus of this work is the …

Wars Of Position: The Construction Of An Antifascist Public Sphere In Spain, 1931-1939, Carter David Barnwell

History ETDs

This dissertation explores antifascist culture in Spain during the decade of the 1930s, and the ways in which it was developed and disseminated by a host of intellectuals and activists under the Second Republic from 1931-1939. In considering parliamentary addresses, performative speech acts, election propaganda, public demonstrations, newspaper and journal articles, multi-media art, and photographs, the study demonstrates how political and cultural leaders came to define and understand “antifascism” and what they hoped to achieve by embracing this term. An antifascist culture developed amongst broad elements of the Spanish political left and center under the Second Republic, which came to …

The Borders Of Embodiment: Transgression, Transformation, And Corporeality In Chicanx Speculative Fiction, Chrysta Carson Wilson

English Language and Literature ETDs

This dissertation develops a clearer vision of Chicanx Speculative Fiction (SF) as its own genre anchored to the experiences and histories of the Chicanx community, with a particular interest in the avenues through which race and gender shape the experience of embodiment. SF resists hegemonic narratives that justify racial hierarchies and reveals both the cultural and concrete pressures exerted on Chicanx bodies in the United States as a minoritized and often exploited community. Furthermore, my analysis illustrates that Chicanx writers utilize elements of SF to defamiliarize traditional notions of race, class, and nationality. Through the use of defamiliarization, Chicanx SF …

Agave, Tamarindo Y Jamaica: Testimonios And Movements Of Jotería Rural And Afro-Jotería Rural From The Ranchos And Pueblos Of Rural Southern Mexico, Luis Oswaldo Esparza

Chicana and Chicano Studies ETDs

This project aims to celebrate and honor resistance strategies by Jotería Rural and Afro-Jotería Rural, who have originally inherited, implemented, and recreated life-affirming survival mechanisms of joy and survival. I accomplished this using a Nagualing Jotería methodologies that humanizes participants by treating their testimonials as legitimate community-based knowledge (Fierros & Delgado-Bernal, 2016). Together, my contributors and I constructed a list of resistance strategies as they tied their experiences in relation to and against repressive colonial rhetoric that continues to be re-articulated in the rural.

White Corn Boy Yellow Corn Girl Find Success On Their Educational Journeys, Sarah Curley

Teacher Education, Educational Leadership & Policy ETDs

This study aimed to provide a narrative analysis of the storied Diné beliefs and values of three Yellow Corn Girls and one White Corn Boy. My research questions were: How do Diné language and culture influence high school students’ success in high school? What cultural beliefs and values contribute to the success of high school students transitioning into their first year of community college? Utilizing the theoretical framework of The Beauty Way of Life (BWOL) model and its philosophies, I gathered narrative data using individual interviews. I examined the impact of the Diné language, cultural beliefs, and values on their …

3d Printing Of Local New Mexican Soil Material: Improving Durability Properties By Assessing Traditional Methods Towards Alternative Sustainable Construction, Daiquiri Devon Zozaya

Civil Engineering ETDs

3D printing (3DP), or additive manufacturing, represents a dynamic and swiftly advancing manufacturing method in which diverse materials are deposited layer by layer through computer-controlled processes, creating intricate geometries. This technology has demonstrated success in various construction applications, including the construction of bridges, bus stop stations, and even residential homes. Nonetheless, the predominant application of 3DP in construction relies heavily on cement due to its robustness, convenience, and ease of use. Regrettably, the cement sector is a substantial source of greenhouse gas emissions, responsible for approximately 8% of worldwide CO₂ emissions. Investigating all facets of carbon emissions reduction is …

Building A Trusted Relationship Among Project Participants In Construction Projects On Tribal Land, Dominica J. Bennett

Civil Engineering ETDs

There are 574 federally recognized tribes in the United States, and these tribal communities differ by culture, language, history, and self-governance. Performing a tribal construction project is different than a non-tribal project due to tribal sovereignty, tribes are both legally and regulatory independent. The United States has recognized its trust with Indigenous tribes through treaties, statutes, and historical relations, however treaties and statutes have been broken over time. This paper aims to qualitatively and quantitatively identify relationships and trust built between contractors, designers, and owners on construction projects while identifying challenges. The methodology involves survey distribution to rank the level …

Effect Of Air Filtration On Water Quality During Atmospheric Water Harvest In The Southwest United States, A.J. Barney

Civil Engineering ETDs

Access to sustainable drinking water is a concern across the globe. Atmospheric water harvest (AWH) offers a potential supplemental drinking water source. However, the sources and processes affecting AWH water quality are not well understood and must be thoroughly studied to consistently utilize AWH for drinking water. The objective of this research is to assess how removing particulate matter (PM) 2.5 and PM10 in the air used to produce AWH with air-filters affects the water quality of AWH. AWH samples were collected simultaneously with three identical dehumidifiers, utilizing three different air-filter configurations (no-filter, MERV8, and MERV12) in Albuquerque, NM from …