Digital Commons Network^™

Evaluating Auditory Processing In Adolescents And Adults Following A Sports-Related Concussion, Kelsey Danielle Kiesz

Doctoral Scholarly Projects & Capstones

Sports-related concussions (SRCs) have gained increasing attention in recent years due to the long-lasting effects. While concussions have been extensively studied, the impact on auditory processing in adolescents and adults remains an under-evaluated area within audiology. This gap in research is noteworthy as audiologists are well-positioned to conduct auditory processing disorder (APD) testing, and post-concussion auditory deficits fall within the scope of their practice. This study addresses the lack of consensus on concussion definitions, limited accurate prevalence data, and the absence of guidelines for assessing auditory processing in post-concussion individuals in the audiology field. The research aims to provide a …

Analyzing The Relationship Between Cannabis Use And Hearing Loss, Ashley Howe

Doctoral Scholarly Projects & Capstones

The purpose of this study was to assess the cross-sectional relationship between cannabis use and hearing thresholds to determine if cannabis use is associated with poorer hearing sensitivity while controlling for covariates and other risk factors in a large population-based data set. To answer this question, we analyzed audiometric hearing threshold data, drug use data, and covariate data from the U.S. National Health and Nutrition Examination Survey (NHANES) cycles. A total of 5,140 participants from 2009–2012 and 2015–2016 aged 20–59 years were included in the analyses. Univariable and multivariable main effects logistic regression models were used to compare cannabis use …

Ototoxicity Monitoring Protocols For Common Chemotherapeutics, Megan Pamela Kennedy

Doctoral Scholarly Projects & Capstones

Cancer is a major public health concern and is increasingly prevalent worldwide. Sung et al. (2021) states that there were 19.3 million new cases of cancer across the globe, and almost 10 million deaths related to cancer in 2021. Sung et al. (2021) also notes that the United States accounts for 8% of all global cases, with an average of 1.7 million new cases annually. The top five most common adult cancers in the United States include: (1) breast, (2) prostate, (3) lung and bronchus, (4) colorectal, and (5) invasive melanoma of the skin. These cancers can be treated with …

Analyzing The Impact Of Oil And Gas-Contaminated Fluids On Soil In Eddy And Lea Counties Using Sequential Extraction, Mary Adu-Gyamfi

Open Access Theses & Dissertations

The study investigates the impacts of oil and gas-contaminated fluids on soil within the context of Eddy and Lea Counties in New Mexico, the United States. The increase in oil and gas operations has led to enormous wastewater production that is handled, stored, and transported, leading to thousands of spills yearly. The continuous and accidental release of this wastewater poses several risks to the environment due to its high levels of hazardous pollutants. Several studies were conducted on how to reduce the contaminants; however, the impact caused on the environment and the fate of the spilled fluids is unclear due …

A Muzzle For The Lamb: A Novel, Scott Beggs

Open Access Theses & Dissertations

No abstract provided.

Effect Of Patient Specific Blood Biomarkers On Nanoparticle - Cell Interactions, Veronica Gabriela Contreras

Open Access Theses & Dissertations

Nanoparticles are currently known to be a promising material class for bio-applications in drug delivery and vaccine development. Using gold nanoparticles of varied sizes, in this case 45 and 100 nanometers as a model nanomaterial system, we investigated how patients' blood physiology and chemistry (such as solute, protein, lipid levels) affect the biological response to bionanomaterials. When nanoparticles are injected into the body, biomolecules in the blood adsorb to the nanoparticle's surface to form a biomolecular corona that is specific to the patient's unique blood composition. This biomolecular corona is important because it affects the in vivo fate and biodistribution …

Water Sufficiency For Organismal Function In Dryland Critical Zones, Lindsey Dacey

Open Access Theses & Dissertations

Water availability is crucial for organismal survival and growth in dryland environments, affecting both ecological interactions and carbon dynamics. The goal of this thesis is to develop soil water release curves (SWRCs) that link soil water potentials (Ψ) to soil water content (θ). Using the SWRCs, temporal soil water sufficiency curves are developed, which quantify the amount of time that dryland critical zones have enough water to sustain the physiology of organisms. These curves allow for effectively indicating water availability across different species, coverage types, and soil conditions, enhancing our understanding of water dynamics in drylands and contributing important parameters …

Cultivating Honor: How Indigenous Students Harness Resilience And Cultural Wealth To Thrive At A Borderlands University, Lourdes Garcia

Open Access Theses & Dissertations

This qualitative study sheds light on students' lived experiences regarding Native American and Indigenous Studies (NAIS) at Borderlands University (BU), a Hispanic-serving institution on the U.S.-Mexico border where First Peoples lived for thousands of years. This study supports Indigenous students whose dismal national college graduation rates must be addressed. It recognizes studentsâ?? cultural wealth and richness (Yosso, 2005) and is grounded by the Peoplehood Matrix (Holm, 2003; Tachine, Cabrera, and Yellow Bird, 2017). This study was consistent with previous studies revealing that prioritizing student support raises equity and improves the overall academic experiences for all students in higher education (Tachine …

Assessing Nordihydroguaiaretic Acid Properties And Its Potential Therapeutic Effect For Glioblastoma, Jose Arturo Guerrero

Open Access Theses & Dissertations

This study employs a combination of theoretical and experimental analysis to spectroscopically investigate the biomechanistic structure relationship and therapeutic effects of the Nordihydroguaiaretic Acid (NDGA) chemical derived from the Larrea Tridentata plant. These relationships are crucial for understanding NDGA's efficacy in disease prevention, treatment, and potential toxicological effects. While the medicinal and antiviral properties of the NDGA have been studied extensively, there remains a gap in optically identifying and reporting its structural changes. The current research successfully reveals evident trends in NDGA's vibrational signatures, particularly highlighting the absence of the Raman feature at 780 〖cm〗^(-1) as indicative of a fully …

Workplace Bullying In K-12 Education, Lorena Garcia

Open Access Theses & Dissertations

Workplace bullying within K-12 education settings has become an increasingly recognized concern, with potentially profound implications for educators' well-being. This quantitative research study aims to explore the phenomenon of workplace bullying among teachers and administrators in K-12 educational institutions. Findings from this study will contribute to the existing literature by shedding light on the prevalence and manifestations of workplace bullying in K-12 education, as well as its implications for individual well-being, organizational culture, and educational outcomes. The study aims to inform the development of targeted interventions and policies to prevent and address workplace bullying, thereby fostering healthier and more supportive …

Laser Powder Directed Energy Deposition (Lp-Ded) Inconel 718: Laser Power And Heat Treatment Effect On Microstructure And Mechanical Properties, Dana Victoria Godinez

Open Access Theses & Dissertations

This study examines the microstructure and mechanical properties (tensile, hardness, and fatigue endurance) of laser powder-directed energy deposition (LP-DED) printed specimens with varying deposition parameters. Five samples with power inputs ranging from 350 to 2620W, all of similar thicknesses, were evaluated to enable a direct comparison. The varying specimens were heat treated, including stress relief, hot isostatic pressing, solution, and two-step aging. The resulting microstructures and their corresponding hardness values were compared at each heat treatment stage. The fully heat-treated specimens' tensile properties and fatigue life were also examined and compared. Key findings of this study indicate that complete heat …

Feasibility Study For The Detection Of Damage To Composite Overwrapped Pressure Vessels With Phase Array Ultrasonic Testing, Jordan Scott Hitter

Open Access Theses & Dissertations

When discussing the field of Nondestructive Examination, there are various techniques and instrumentation that can be utilized for analysis of components. However, with newer technology and the development of newer forms of technique, it is critical to explore exactly how these can be applied. This work will aim to explore one newer technique, Phased Array Ultrasonic Testing, and determine the viability of its use for examining Composite Overwrapped Pressure Vessels (COPVs). Currently, the types of vessels have been used in a variety of ways such as in transportation vehicles. More notably, these vessels are used in aerospace applications hence the …

Earth Abundant Catalyst For Evironmental Sustainability Applications, Javier Hernandez

Open Access Theses & Dissertations

The development of experimental methodologies for synthesizing a diverse range of metallic and metal oxide nanoparticles tailored for sustainable water treatment applications was investigated. These nanoparticles are prepared using environmentally friendly and scalable synthesis methods, underscoring their potential for large-scale production. Synthesized nanoparticles are harnessed for various processes, including catalysis and electrocatalysis, with a primary objective of degrading and removing organic pollutants from water. Key to this research is the encapsulation of nanoparticles within solid supports. Multiple methodologies are explored to engineer supports that ensure nanoparticle stabilization, monodispersion, and prevent unintended release into the environment. Two alternative approaches were evaluated …

Microstructural Characterization And Oxidation Behavior Of Al-Cu-Ni-Mn And Al-Cu-Ni-Mn-Si Non-Body Centered Cubic High Entropy Alloys, Mckenna Mae Lin Hitter

Open Access Theses & Dissertations

High entropy alloys (HEA) differ from traditional alloying systems because five elements are mixed in equi-atomic proportions, as opposed to having one main principal element. As a result of exploring this new method of alloying, it was found that high entropy alloys demonstrate exceptional mechanical properties, an example being oxidation resistance, and are capable of enduring elevated temperatures. Seeing the potential that this new area of interest contains, studies involving a combination of elements to form various HEA have been performed. Most refractory metals are body-centered cubic and possess extremely high melting temperatures, so they are regularly considered when designing …

Working In The Shadows: The Impact Of Wage Theft Among Undocumented Workers In El Paso, Texas, Christe Cherie Lattimore-Staple

Open Access Theses & Dissertations

The documentary film titled "Working in the Shadows: The Impact of Wage Theft Among Undocumented Workers in El Paso, Texas" sheds light on the pervasive issue of wage theft experienced by undocumented workers in the region. Through personal testimonies, interviews with workers, legal experts, and government officials, the film delves into the challenges faced by undocumented workers who are vulnerable to exploitation due to their legal status.Undocumented workers in El Paso face a host of challenges, including unpaid wages, unsafe working conditions, and fear of retaliation if they assert their rights. The film highlights the critical role of community organizations, …

Local Map Of The Interstellar Fuv Field, David Lomeli

Open Access Theses & Dissertations

The strength of the far-ultraviolet field is an important parameter in determining the chemistry that takes place in star-forming regions. FUV radiation is produced by bright stars in the galaxy and absorbed by interstellar dust. By using newly available maps of the dust distribution, in conjunction with catalogs of stellar positions and spectra, we created a local map of the FUV field ranging from 6-13.6 eV. We find a value of 6.57*10^-14 erg/cm^3 at the location of the Sun. This value, alongside its spectra, follow previous measurements and estimates of the FUV field at the Sun. We further study the …

My Little Poetic/Prose Book Of Words, Sayings, And Stories In Broken Spanish And A Little Bit Of German / Mi Libro Chiquito De Poética / Prosa De Palabras, Dichos, Y Historias Español Fracturado Y Un Poquetito Alemán, Sharon Ann Lucero

Open Access Theses & Dissertations

Acknowledgements

First and foremost, I would like to thank Jonathan Taylor and Sarah Thompson for the wonderful job they did in providing me with feedback. I took into consideration all their comments. Their comments aligned with Dr. Powers, and I really took a deeper look into my Spanish/English translations on whether I should have them or not. I found a happy medium for all of it. I also went back and looked at the rest of the class’s comments and made sure that I did not miss any of the details that were pointed out to me the first time …

Development Of A Digital Engineering Testing Framework For Cubesat Applications, Javier Alberto Martell

Open Access Theses & Dissertations

Digital Engineering (DE) is playing an important and expanded role in todayâ??s industry. As engineering systems become more and more complex with each new iteration, the need for a more efficient and agile methodology for project management and development is needed. The SleeperSat-1 (SPST-1) is a Modular Open System Architecture (MOSA) type of small satellite being developed by the UTEP Aerospace Center. The SPST-1 will mostly use digital engineering tools for its lifecycle research and development. CubeSats require rigorous environmental testing not only to ensure the success of the mission, but also to ensure the safety of the crew, space …

Modeling The Spatiotemporal Variations Of The Magnetic Field In Active Regions On The Sun Using Deep Neural Networks, Godwill Asare Mensah Mensah

Open Access Theses & Dissertations

Solar active regions are areas on the Sun's surface that have especially strong magnetic fields. Active regions are usually linked to a number of phenomena that can have serious detrimental consequences on technology and, in turn, human life. Examples of these phenomena include solar flares and coronal mass ejections, or CMEs. The precise predictionof solar flares and coronal mass ejections is still an open problem since the fundamental processes underpinning the formation and development of active regions are still not well understood. One key area of research at the intersection of solar physics and artificial intelligence is deriving insights from …

Computational Study Of Fluorescent Molecular Probes For The Early Detection Of Alzheimer's Disease, Gabriela Elizabeth Molina Aguirre

Open Access Theses & Dissertations

Alzheimer's disease is a debilitating brain disorder that affects memory, thinking, and behavior. It is the most prevalent form of dementia and the seventh leading cause of death in the United States. As, researchers have identified biomarkers that can indicate the presence of the disease many years before the first symptoms appear, so there is an opportunity for early detection and treatment follow-ups, which could significantly improve the quality of life for those affected by this disease.This dissertation investigates the relationship between molecular structure and optical properties of donor-bridge-acceptor (DBA) fluorescent molecular probes designed for detecting Amyloid-β and p-Tau protein …

Microwave Emission Model Parameter Tuning For Surface Soil Moisture Retrieval Using Uav-Mounted Dual Polarization L-Band Radiometer, Santiago Hoyos Echeverri

Open Access Theses & Dissertations

Surface soil moisture retrieval from L-band brightness temperature has been developed for the past decades due to multiple beneficial characteristics of 1-2 GHz frequency bands for remote sensing of the environment. Numerous microwave emission models have been proposed for tower and satellite-based operations with successful retrieval of surface soil moisture and vegetation water content. As a result of the development of cost-effective and low-mass microwave L-band radiometers such as the Portable L-band Radiometer (PoLRa), surface soil moisture surveying traditionally developed by satellite missions SMOS and SMAP can now be developed at local scales, bringing these operations to commercial small unmanned …

Culturally Sustaining Pedagogy And Qris: Leveraging Systems To Improve Academic Achievement Of Marginalized Students, Elizabeth Nichols

Open Access Theses & Dissertations

Culturally sustaining pedagogy is being utilized to support racially, ethnically, and linguistically diverse students in some classrooms and schools across the nation. Minoritized students currently have higher disciplinary rates and lower graduation rates. This leads to the question: at what age should educators begin implementing culturally sustaining pedagogy (CSP) to support positive academic, social, and emotional outcomes in young children? This thesis explores how preschool programs implement culturally sustaining practices in their classroom environments through interactions with students, family/community engagement, and social justice activities. I also examine how the implementation of CSP improves academic, social, and emotional outcomes among minoritized …

Combining Green Analytical Methods And Machine Learning To Develop Urinary Fatty Acid Models For Cancer Detection, Elizabeth Noriega Landa

Open Access Theses & Dissertations

This study aimed to explore fatty acids (FAs) as non-invasive biomarkers for prostate cancer (PCa) detection and prognosis, and their potential applications in other cancers. The objectives of this study were: 1) Develop a non-invasive urinary FAs-based model for diagnosing PCa; 2) Develop a FAs-based liquid biopsy model for non-invasive monitoring of PCa progression; 3) Investigate FAs composition in periprostatic adipose tissue (PPAT) collected from PCa positive patients; 4) Investigate the potential of urinary FAs biomarkers for diagnosing clear cell renal cell carcinoma (ccRCC) and ovarian cancer (OC).For the PCa diagnostic model, urine samples from 334 biopsy-confirmed PCa-positive and 232 …

Analysis Of Drying Behavior Of Robocasted Barium Titanate, Abigail Ortega

Open Access Theses & Dissertations

Finding an adequate ceramic formulation for material extrusion is a time-consuming process. The necessary equipment may be unavailable to perform the desired test. This study demonstrated an alternative to observe a material after extrusion to understand its drying process. This study focused on 55 solid loading volume percent and a 39 solid loading volume percent, each with two different binder treatments focusing on fresh same day made binder, a 30 day old, aged binder and lastly an artificial binder obtained by a fuming process. Firstly, a formulation was created and loaded onto a pressure-based syringe to be extruded with a …

Examining The Effects Of A Week-Long Social Media Abstinence Intervention, Iweek, On General Well-Being, Mental Health, And Body Image Concerns In Latina College Students, Roberto Sagaribay

Open Access Theses & Dissertations

Latina college students, on average, spend approximately 30 hours per week on social media, highlighting the pervasive influence of social media on their lives. While social media can facilitate interpersonal relationships, its impact on mental and physical health is evident in the literature. Problematic social media use has been associated with increased rates of depression, anxiety, and decreased life satisfaction. Additionally, exposure to idealized images on social media platforms often leads to lower body satisfaction, particularly among women. Social media may also influence eating behaviors through the abundance of food advertisements and contribute to sedentary behavior, as individuals spend significant …

Produced Water: Characterization And Treatment, Ramon Antonio Sanchez Rosario

Open Access Theses & Dissertations

In recent years, environmental concerns have urged companies in the energy sector to modify their industrial activities to facilitate greater environmental stewardship. For example, the practice of unconventional oil and gas extraction has drawn the ire of regulators and various environmental groups due to its reliance on millions of barrels of fresh water for hydraulic fracturing well stimulation, which is generally withdrawn from natural sources and public water supplies. Additionally, this process generates two substantial waste streams, which are collectively characterized as flowback and produced water. Whereas flowback water is comprised of various chemical additives that are used during hydraulic …

Synthesis Of Neoglycoproteins As Potential Biomarkers For Chagas Disease And Cutaneous Leishmaniasis Caused By Leishmania (Viannia) Braziliensis, Eileni Rodriguez Gil

Open Access Theses & Dissertations

Protozoan parasites are responsible for causing numerous diseases in humans and mammals worldwide. Among them are Chagas disease (CD), caused by the parasite Trypanosoma cruzi (T. cruzi), and tegumentary leishmaniasis (TL), caused by the parasite Leishmania (Viannia). Both diseases coexist in many regions of Latin America, and current hurdles to differentially diagnose them and determine chemotherapy success need to be overcome. CD can be diagnosed by traditional serological tests and polymerase chain reaction (PCR), but disadvantages of these methods are that they may produce false negatives because the antigens used in commercial CD kits are not conserved across all T.cruzi …

Computational Investigation Of Transition Metal Photoredox Catalysis: Redox Property Tuning Via Ligand Modification, Christian Fernando Sandoval Pauker

Open Access Theses & Dissertations

In the last decade, photoredox catalysis has become a powerful tool in synthetic chemistry. It relies on the ability of catalytic systems that facilitate energy-demanding redox reactions thanks to photoinduced electron transfer processes. This dissertation focuses on the computational investigation of the redox properties of transition metal photoredox catalysts using density functional theory (DFT) calculations. The research systematically explores the effects of altering redox-active ligands on the thermodynamics of electron transfer events in the photoredox cycle. The electronic structure changes throughout oxidative and reductive quenching cycles are analyzed, with a particular focus on Cu(I) complexes. Through computational techniques, insights into …

The Daughters Of La Malinche: A Heideggerian Analysis Of The Pazian Archetypal Masks Portrayed In Art, At-Ziry Aileen Torres

Open Access Theses & Dissertations

In this thesis, I present a Heideggerian phenomenological analysis of the Pazian archetypal masks present in The Labyrinth of Solitude, such as El Macho, La Llorona, La Mala Mujer, La Chingada, and La Malinche, and how these masks are represented and depicted by women in art. I analyze the authentic or inauthentic identity and conditions expressed by Mexican women in art through a mimetic lens and extend that analysis to gendered concerns that have emerged in the past fifty or so years in Mexico and the U.S. Mexico border. Such issues include the pervasive machismo culture and the alarming increase …

Abortion Funds As Care Work: Navigating The Emotional Tolls Of The Texas Executive Order Abortion Ban And Covid-19 Pandemic, Brianna Trejo

Open Access Theses & Dissertations

This qualitative study explores the experiences of abortion fund staff and volunteers amidst the unprecedented challenges posed during the early months of COVID-19 and the Texas Executive Order. Through analysis of semi-structured interviews, we aimed to identify the shared experiences of staff and volunteers during this time. Four categories of experiences were identified: (1) Reproductive Justice, (2) Emotional Support, (3) Creating a Community of Care, and (4) Emotional Burnout. Our findings revealed that to navigate the uncertainties of the pandemic and Executive Order, staff and volunteers adapted a community of care model deeply rooted within the framework of reproductive justice. …