Digital Commons Network^™

Effects Of Home-Based High-Intensity Interval Training Versus Continuous Walking On Cognition In Overweight And Obese Women, Kelsey C. Bourbeau

Health, Exercise, and Sports Sciences ETDs

Objective: The purpose of the present study was to determine whether six weeks of home-based high-intensity interval training versus six weeks of moderate-intensity walking improves cognition, depression, and anxiety in women that are overweight or obese. Design: A randomized control trial design. Subjects: Twelve sedentary women characterized as overweight or obese were randomized into either a six-week home-based high-intensity interval training (HIIT, n = 6, 26.6 ± 8.9 years, 37.4 ± 4.9% body fat) group or a six-week moderate-intensity walking (Walk, n = 6, 22.5 ± 3.7 years, 40.2 ± 4.1% body fat) group. Main Measures: Pre- and post-intervention, participants …

Characterization Of Materials Properties In Additively Manufactured Aisi-420 Martensitic Steel Deposited By Laser Engineered Net Shaping, Md Mehadi Hassan

Nanoscience and Microsystems ETDs

Metal additive manufacturing (AM) is a disruptive technology enabling the fabrication of complex and near-net-shaped parts by adding material layer-wise. It offers reduced lead production time. AM processes are finding applications in many industrial sectors such as aerospace, automotive, biomedical, and mold tooling. Despite the tremendous advantages of AM, some challenges still prevent this technology's adoption in high-standard applications. Anisotropy and inhomogeneity in the mechanical properties of the as-built parts and the existence of pores and lack-of-fusion defects are considered the main issues in directed energy deposition (L-DED) parts. Laser-engineered net shaping LENS® offers excellent possibilities to fabricate metal tools …

Social Presence As A Predictor Of Social Construction Of Knowledge In Discussion Forums In Asynchronous Online Higher Education Courses, Austin Megli

Organization, Information and Learning Sciences ETDs

The three research papers completed and compiled to make up this dissertation explore the relationship between social presence and social construction of knowledge in asynchronous online discussion forums in higher education courses in the instructional technology field. Paper 1 is a literature review of the interaction analysis model (IAM) (Gunawardena et al., 1997) as a methodology, which is used to measure and determine the social construction of knowledge in online discussion forums. This literature review identified and highlighted the need to determine how the social environment of online learning influences the social construction of knowledge. This led to the second …

Single-Crystal Elasticity Of Earth’S Mantle Transition Zone Minerals And High Pressure-Temperature Phase Equilibrium Experiments On Martian Basalts, Wenyi Zhou

Earth and Planetary Sciences ETDs

Wadsleyite and ringwoodite are major minerals in the Earth’s Mantle Transition Zone. Global and local seismic studies have detected strong lateral variations in seismic velocity and anisotropy in the Mantle Transition Zone, reflecting temperature and possible composition variations. Interpretation of these seismic observations requires knowledge of thermoelastic properties of wadsleyite and ringwoodite with different compositions (water and Fe contents) under high pressure-temperature conditions. In this dissertation, we have measured single-crystal elastic properties of wadsleyite and ringwoodite under high pressure-temperature conditions by Brillouin spectroscopy. Based on our measurements and previous experimental results, we further model the effects of water and Fe …

Investigation Of Laser And Nonlinear Properties Of Anderson Localizing Optical Fibers, Cody Ryan Bassett

Optical Science and Engineering ETDs

In this dissertation, I investigate the possibility of lasing and nonlinear phenomena in completely solid-state transverse Anderson localizing optical fibers (TALOFs). I examine three areas within this range of topics. The research in nonlinear phenomena focuses on four-wave mixing (FWM). FWM is of high interest in TALOFs due to the fact that guided localized modes of the fiber each have different propagation constants, and thus unique possible FWM pairs can be generated from the same input pump beam. I demonstrate the generation of FWM in the TALOF by pumping it with 532 nm light into a localized mode and observing …

Convexity Of Regularized Optimal Transport Dissimilarity Measures For Signed Signals, Christian P. Fowler

Mathematics & Statistics ETDs

Debiased Sinkhorn divergence (DS divergence) is a distance function of

regularized optimal transport that measures the dissimilarity between two

probability measures of optimal transport. This thesis analyzes the advantages of

using DS divergence when compared to the more computationally expensive

Wasserstein distance as well as the classical Euclidean norm. Specifically, theory

and numerical experiments are used to show that Debiased Sinkhorn divergence

has geometrically desirable properties such as maintained convexity after data

normalization. Data normalization is often needed to calculate Sinkhorn

divergence as well as Wasserstein distance, as these formulas only accept

probability distributions as inputs and do not directly …

The Dance Of Domesticity: How Gender Constructs Obscure Lived Experience At Museums, Marcy J. Botwick

Museum Studies Theses

My thesis focuses on Mary Shepard Greene Blumenschein and Ernest L. Blumenschein, married artists born in the late 1860s. Ernest Blumenschein was an important regional artist and member of the Taos Society of Artists (TSA). Paintings by Blumenschein and other TSA members promoted tourism in the Southwestern United States through annual exhibitions and their use in advertising the Atchison, Topeka and Santa Fe Railway (AT&SF). Mary Greene Blumenschein was an award-winning painter and illustrator whose work focused on images of women at the beginning of the twentieth century, however, she is now a secondary and obscure figure in art history. …

Theoretical Studies Of Molecule-Surface Interactions And Dynamics, Yingqi Wang

Chemistry and Chemical Biology ETDs

Gas-surface scattering involves the conversion of energy in different forms in the impinging molecule, possible bond breaking and forming, and the energy transfer across gas-solid interface. Possible energy dissipation channels include adiabatic energy transfer to the motion of surface phonons and non-adiabatic interactions with surface electron-hole pairs. A complete understanding of the interplay of energy dissipation and physical/chemical changes in the molecule is vital for many important applications such as materials fabrication and heterogenous catalysis.

Gas-surface encounters may occur where non-adiabatic effects are negligible. Two such systems were investigated, both with ample experimental data. One is concerned with the scattering …

Reclaiming Justice From Below: Victim Participation And Reparations In Post-Conflict Peru, Fiorella P. Vera-Adrianzen

Political Science ETDs

Since 2007, Peru’s Plan Integral de Reparaciones (PIR, Comprehensive Reparations Plan) has provided material, symbolic, individual, and collective reparations to victims of the civil conflict (1980-2000). Important differences in the implementation of reparations have emerged across time and space. Previous studies have examined factors conditioning the adoption and the effects of reparative justice, generally at the national level. How reparative processes unfold on the ground from design to implementation remains underexplored. Drawing upon original interviews, focus groups, participant observation, and archival research in three highly affected Andean regions (Apurímac, Junín, and Ayacucho) and in the capital city, Lima, I examine …

The Impact Of Murals On Traffic Safety: A Behavior And Crash Analysis, Maria Cecelia Cruz

Civil Engineering ETDs

ABSTRACT

This research analyzed changes in motor vehicle volumes and motor vehicle speeds after the installation of an intersection mural in Albuquerque, NM and changes in crash frequency after mural installations in Philadelphia, PA. Data was collected manually on site for the Albuquerque study and secondary data – including installation dates and physical characteristics – were used for the Philadelphia crash analyses. Statistics were computed to determine trends in motor vehicle speeds and volumes relative to the Albuquerque mural installation. A geographic information system (GIS) spatial analysis and t-test statistical analyses were used to determine which Philadelphia murals saw significant …

Maneuvering Mestizaje In Shakespeare's Tragicomedies, Andrea Phiana Borunda

English Language and Literature ETDs

This project explores and wades through the implications of mestizaje in the murky depths of Shakespeare’s oceans. Disguises and mistakes in identities and in gender and “race” draw on the hybridity and indeterminacy of the early modern stage and its fluidity and lack of order to reflect an unhomed and unmediated formation of nationhood, diaspora, and (trans)global identities. Drawing on ecocritical and critical race theories, I contend the tragicomic works of Shakespeare expose and dismantle ecoracial fantasies of white male supremacy to curate a space of mestizaje for a new generation of BIPOC scholars.

The Effects Of Whole-Body Hot Water Immersion After Exercise Induced Muscle Damage On Exercise Performance And Inflammatory Markers, Rogelio A. Realzola

Health, Exercise, and Sports Sciences ETDs

This study examined the effects of hot water immersion (HWI) on exercise performance and inflammatory markers after a resistance exercise-induced muscle damage protocol. Strength trained males (n = 5) and females (n = 5) completed two experimental trials separated by at least 2 weeks in a randomized crossover design; one trial involved HWI, the other temperate water immersion (TWI). For each trial, subjects performed a muscle damaging protocol followed by HWI or TWI for up to 50 minutes. The protocol consisted of 10 sets of 8 repetitions at 70% of 1-repetition maximum with 4s eccentric, 1s concentric lifting …

Combining Isotopic And Genetic Analyses To Quantify Microbial Facilitation Of Recalcitrant Resource Use By Terrestrial And Aquatic Consumers, Alexi Christina Besser

Biology ETDs

Quantifying the flow of energy and nutrients through food webs is foundational to understanding the structure and function of ecosystems. Here, I utilize the stable carbon and nitrogen isotope analysis of individual amino acids to trace the movement of essential amino acids through terrestrial and freshwater food webs in New Mexico, USA. I first explore isotopic patterns among co-occurring terrestrial plants and aquatic algae. I then combine this molecular isotopic approach with 16S and 18S rRNA sequencing to demonstrate the importance of gut microbiota as sources of essential amino acids to wild mammalian hosts. Next, I explore the roles of …

Status Seeking In Conspicuous Spectator Sports Consumption: A Self-Determination Theory Perspective, Yong Wang

Health, Exercise, and Sports Sciences ETDs

According to self-determination theory, people are intrinsically and/or extrinsically motivated to self-regulate their behavior (Deci & Ryan, 2012). Sport fans watch games for intrinsic rewards such as having fun and supporting a team, which, from the identity fusion perspective (Swann Jr et al., 2009), derive from their visceral sense of oneness with a team. Although they can choose to watch games at home, many fans spend money attending expensive games (e.g., major sports) and publicly display their experience. A plethora of sport management literature has addressed the intrinsic motivation for attending games; however, less attention has been paid to the …

Adaptive Federated Learning For The Internet Of Things, Rana Albelaihi

Computer Science ETDs

The rise of the Internet of Things (IoT) services has facilitated data sharing and information diffusion among billions of devices. However, IoT still faces data privacy and energy consumption challenges yet to be resolved. Here, the data privacy challenge implies that clients in terms of IoT devices have to share their sensitive data (such as clients’ locations) with a centralized server or data center (managed by third parties), which analyze these sensitive data to generate high-level knowledge that can provide better services to the clients. The energy consumption challenge implies that clients have to frequently send their data to a …

Science, Technology, Engineering, And Mathematics (Stem) Project-Based Learning (Pbl) Education: A New Mexico Case Study For Equity And Inclusion, Kimberly A. Scheerer

Teacher Education, Educational Leadership & Policy ETDs

This research addresses how student participation in Science, Technology, Engineering, and Mathematics (STEM) project-based learning (PBL) education activities encourages underrepresented minority student achievement in STEM career field trajectories. Seven New Mexico high school counselors and 12 STEM organization personnel were interviewed during this study. Their responses represent the nuanced professional voices where New Mexico public education intersects with STEM student interest and cultural influence.

For students, STEM PBL can foster deep integration across educational disciplines and enhance STEM career trajectory interest and readiness. STEM education converged with PBL methodologies has the ability to leverage community support while broadening student networks. …

Particle Image Velocimetry Methodology For Calculating The Advective Losses At The Solar Tower For The Gen 3 Concentrated Solar Power System, Guillermo Anaya

Mechanical Engineering ETDs

The Falling Particle Receiver (FPR) built by Sandia National Laboratory (SNL) at the National Solar Thermal Testing Facilities (NSTTF) is one of the latest concentrated energy harvesting systems for Concentrated Solar Power (CSP). The FPR system at the NSTTF uses solid particles as both the heat transfer fluid and storage media. This FPR operates by having a gravity-driven particles curtain being irradiated through an open cavity by CSP, provided by a heliostat field. However, during operation plumes of particles being expelled out of the receiver cavity can be observed, resulting in heat losses as well as particle inventory losses. The …

That's A Wrap: Using Cultural Discourse Analysis To Explicate The Film Portrayal Of Communication Between Elderly Parents And Their Adult Child(Ren) In A Caregiving Relationship, Gerri A. Duran

Communication ETDs

There are burgeoning numbers of elderly and a significant number of their adult children provide them with some level of care. To date, there has been little research on elderly parents’ perspective as they communicate with their adult children about the care provided by their children. This dissertation addresses this gap by identifying the nature of the communication, as portrayed in film, which occurs between an elderly parent (EP) and their caregiving adult child (AC).

In addition to identifying the nature of communication between an EP and their AC, I examine the similarities/differences of their communication among the films. I …

Statistical Methods For Differential Gene Expression Analysis Under The Case-Cohort Design, Lidong Wang

Mathematics & Statistics ETDs

Differential gene expression analysis has the potential to discover candidate biomarkers, therapeutic targets, and gene signatures. How to save money when using an unaffordable sample is a practical question. The case-cohort (CCH) study design can blend the economy of case-control studies with the advantages of cohort studies. But it has not been seen in the medical research literature where high-throughput genomic data were involved.

A score test does not need to fit the Cox PH model iteratively; hence, it can save computing time and avoid potential convergence issues. We developed a score test under the CCH design to identify DEGs …

Dense Array Seismic Imaging Of Earth's Crust Using Active And Passive Sources, Evans Awere Onyango

Earth and Planetary Sciences ETDs

Imaging Earth’s crust is critical to understanding processes in the near-surface that affect civilization such as the interaction of seismic waves with the near-surface to generate natural or man-made hazards or investigating how the shallow crust affects the distribution of resources. In chapter 1, I processed and analyzed active source seismic data recorded by ~1000 geophones that were acquired over the legacy HADDOCK nuclear test at the Nevada National Security Site. Using seismic reflection and refraction methods, we image the partially collapsed post-detonation structure to better understand the velocity structure in and around the HADDOCK chimney. Results from this work …

Evaluating Microneedle Impedance For Monitoring Water Potential In Vitis Vinifera And Helianthus Annuus, Erica G. Pauer

Biology ETDs

Measurements of plant water potential provide fundamental insights into how plants are interacting with the environment to manage water needs. However, monitoring water potential is difficult, time consuming, and frequently destructive. Several methods have been in development that attempt to monitor the water status of plant tissues in a simple, continuous, and non-destructive manner. One of these methods, electrical impedance spectroscopy (EIS), is emerging as a particularly promising tool that has several applications in plant biology. I used a new microneedle system that applies small electrodes to a range of tissues. By utilizing this tool in conjunction with a standard …

Teachers Of General Education: Perceptions And Experiences Teaching Inclusion In U.S. Schools, Ann C. Sander

Teacher Education, Educational Leadership & Policy ETDs

This phenomenological qualitative study explored the perceptions and experiences of a group of U.S. public schools, kindergarten through fifth grade teachers, certified in general education with experience teaching inclusion--a federally mandated practice requiring schools to educate students both with and without disabilities in the same classroom. Much of the literature surrounding inclusion focuses on the perceived benefits of the program and children with disabilities' legal rights. The literature has a limited number of references describing the perceptions and experiences of teachers who are required to provide the educational services necessary for inclusion in the classroom.

In this study, 35 participants …

Induced Seismicity In The Raton Basin And Global Variability Of The 410-Km Discontinuity, Margaret E. Glasgow

Earth and Planetary Sciences ETDs

Natural processes like mantle convection and plate tectonics dominate Earth’s seismic structure. Recently human activities have increasingly influenced the deformation of the shallow crust. In this dissertation, passive source seismology was used to constrain seismic discontinuities in the mantle transition zone and seismogenic structures in induced earthquake settings. Using a novel sampling method and uniform processing approach, I found the 410-km discontinuity is thermally and compositionally variable. Using a machine- learning approach, I found the three main zones of seismicity in the Raton Basin consist of short faults or fault segments with variable orientations. The zone that hosted a Mw …

Evolution Of Shock-Driven Multi-Phase Instability, Joshua Chavez

Mechanical Engineering ETDs

ABSTRACT

In many models and experiments using shock tubes and shock tube instabilities, measurements of velocity and position of the flow features are frequently taken in a single horizontal direction (or in one plane), however, the three-dimensional flow structure is important and cannot be fully resolved by such measurements. By placing a mirror at 45 degrees atop a test section of a shock tube, it becomes possible to visualize the flow from two directions simultaneously. The mirror is used to see if viable data can be gathered from the second view in conjunction with the main view. With high-speed video …

Escribir El Desarrollo, Desplegar La Cultura: Historias De Imaginación Económica En Colombia Y Brasil, Diego Bustos

Spanish and Portuguese ETDs

In this dissertation, we analyze how a group of artists negotiate through their novels and cultural performances a repertoire of meanings on inequality and plurality, formulating a program of socio-cultural transformation via literature. In the first two chapters, we examine the work by Colombian author Augusto Morales Pino (comprised of four volumes), as proponent of a transnational genealogy of economic development, offering a repertoire of meanings and practices for contemporary public policy in which the concept of middle class predominates. I argue that these representations actively shape the possibility and limits of the contemporary models of inclusion and cultural citizenship. …

Material Characterization And Comparison Of Sol-Gel Deposited And Rf Magnetron Deposited Lead Zirconate Titanate Thin Films, Katherine Lynne Miles

Mechanical Engineering ETDs

Lead zirconate titanate (PZT) has been a material of interest for sensor, actuator, and transducer applications in microelectromechanical systems (MEMS). This is due to their favorable piezoelectric, pyroelectric and ferroelectric properties. While various methods are available to deposit PZT thin films, radio frequency (RF) magnetron sputtering was selected to provide high quality PZT films with the added capability of batch processing. These sputter deposited PZT films were characterized to determine their internal film stress, Young’s modulus, composition, and structure. After characterization, the sputtered PZT samples were poled using corona poling and direct poling methods. As a means of comparison, commercially …

A Metabolic Profile Of Escalating Density Training, Desmond Millender

Health, Exercise, and Sports Sciences ETDs

Objective: The purpose of this study was to compare the acute physiological, perceptual, and enjoyment responses between a single bout of escalating density training (EDT) and traditional resistance training (TRAD).

Methods: Twelve physically active males (n = 6) and females (n = 6) (age: 21.4 ± 3.0 years; weight: 69.8 ± 7.9 kg; height: 172.9 ± 12.4 cm; maximal oxygen consumption (VO₂max): 44.7 ± 9.2 ml · kg^-1 · min^-1) performed both EDT and TRAD. During the EDT trial, participants performed chest and leg press exercises in a cyclical fashion for 15 minutes with limited …

Creating Counter-Hegemonic Spaces In A Spanish Language Arts Classroom, Mercedes Valenzuela

Language, Literacy, and Sociocultural Studies ETDs

This qualitative case study used practitioner research methods to address the question: How does a Mexican American teacher create counter-hegemonic spaces in a Spanish Language Arts classroom utilizing critical race and borderlands theories? The research focused on how I as a teacher-built trust and respect through place—here, the classroom, classroom activities, and discussions—thereby creating a place for students to express their thoughts and feelings and to build relationships with the teacher and their classmates for learning to occur. This study also analyzed how using critical race and borderlands theories influences and shapes Mexican American students’ educational experiences beyond a …

Unraveling The Complex Interactions Between Members Of The Schistosoma Haematobium Group And Bulinus Snails In And Around Lake Victoria In West Kenya, Caitlin Raiselle Babbitt

Biology ETDs

Schistosoma haematobium, the agent of urogenital schistosomiasis, and
related schistosomes are transmitted by members of the genus Bulinus. Each of
the 38 Bulinus species vary in their ability to vector schistosome species and
non-schistosome trematodes resulting in a patchwork of snail-parasite
compatibilities. Accurately identifying snail intermediate hosts and the disease-
causing parasites they transmit is critical for snail control strategies and the
management of human schistosomiasis. Towards these ends, this thesis
identifies bulinid species and the parasites they transmit and implicates certain
species in the transmission of S. haematobium. The thesis also includes a
systematic review of …

Functional Data Analysis Of Covid-19, Nichole L. Fluke

Mathematics & Statistics ETDs

This thesis deals with Functional Data Analysis (FDA) on COVID data. The Data involves counts for new COVID cases, hospitalized COVID patients, and new COVID deaths. The data used is for all the states and regions in the United States. The data starts in March 1^st, 2020 and goes through March 31^st, 2021. The FDA smooths the data and looks to see if there are similarities or differences between the states and regions in the data. The data also shows which states and regions stand out from the others and which ones are similar. Also shown …