This study describes a set of salient formal norms for the eighteenth-century Spanish keyboard sonata through an application of Hepokoski and Darcy's sonata theory, William Caplin's form-functional theory, and Robert Gjerdingen's schema theory. It finds that particular thematic types, intra-thematic functions, and rhetorical markers characterize this repertoire. In order to trace the development of these norms throughout the eighteenth century, this work is organized into two parts. The first part (Chapters 2 and 3) examines the mid-century Spanish keyboard sonatas of Sebastián de Albero (1722–1756), Joaquín Ojinaga (1719–1789), and their contemporaries. The second part (Chapters 4 and 5) examines the late-century Spanish keyboard sonatas of Manuel Blasco de Nebra (1750–1783) and his contemporaries.

The expansionist agenda of the Polk administration culminated in the War with Mexico. The capture of Mexico City in September 1847 left the United States Army with the unprecedented task of occupying an enemy capital for an extended period. After the initial theaters of operation proved unable to secure a peace, Maj. Gen. Winfield Scott commenced a campaign to take central Mexico including the capital city. In March 1847, an army of 11,000 soldiers under Scott landed at Vera Cruz. In six months, Scott's army marched over 250 miles and won five major battles. In mid-September, Scott took Mexico City. Throughout the campaign, Scott attempted to implement a pacification plan in an effort to prompt Mexico to open peace negotiations. Concern for his army weighed heavily on him as he faced unprecedented challenges in occupying Mexico City after its capture. The United States simply had almost no experience in the ramifications of fighting a foreign war, other than a few brief small-scale incursions onto foreign soil at Tripoli in 1805 and in British Canada. The difficulties that arose for Scott from the situation in Mexico were frustrating. Scott pacification plan used conciliation, coercion, and force on Mexico's army and people …

The main objective of this thesis is to propose a localization method for a UAV using various computer vision and machine learning techniques. It plays a major role in planning the strategy for the flight, and acts as a navigational contingency method, in event of a GPS failure. The implementation of the algorithms employs high processing capabilities of the graphics processing unit, making it more efficient. The method involves the working of various neural networks, working in synergy to perform the localization. This thesis is a part of a collaborative project between The University of North Texas, Denton, USA, and the University of Windsor, Ontario, Canada. The localization has been divided into three phases namely object detection, recognition, and location estimation. Object detection and position estimation were discussed in this thesis while giving a brief understanding of the recognition. Further, future strategies to aid the UAV to complete the mission, in case of an eventuality, like the introduction of an EDGE server and wireless charging methods, was also given a brief introduction.

Currently, there is no equipment to measure the real-time fit of EHMR or N-95masks which are used in harsh environments. Improper fit of these EHMRs or N-95 masks exposes the personnel to hazardous environments. Surface acoustic wave (SAW) sensors have been around for few decades and are being used in various applications. In this work, real-time PM2.5 detection using passive wireless SAW sensors is presented. The design of meander antenna at 433MHz for wireless interrogation of SAW sensor using HFSS and ADS is also presented in this thesis. This works also includes the design of YZ-lithium niobate SAW sensor including COMSOL simulation.

This thesis consists of two projects in the field of machine learning. Previous research in the OSCAR UNT lab based on KMeans color quantization is further developed and applied to individual color channels and segmented input images to explore compression rates while still maintaining high output image quality. The second project implements a small-scale dual path network for image classifiaction utilizing the CIFAR-10 dataset containing 60,000 32x32 pixel images ranging across ten categories.

The purpose of this research is to measure the social shifts that take place in a home where artificial intelligent (AI) devices like Echo Dot and Google Home are fully integrated into their everyday life. Research is currently limited, being that the widespread use of these devices is roughly seven years old. Three main outcomes of this study were related to how often Alexa is being used in homes to solve everyday problems, the lack of overall privacy and security concerns users had, and the level of integration into the home as a member of the family. Some limitations and challenges are my ability to compare the households before and after installing these devices in the home; pinpointing when and where the device is used (i.e., room placement); collecting data on whether the device is used often or sparingly; and the depth of interactions these families actually have with the device on a whole. The broader implications behind the increased integration of AI devices is centered around health, labor, social inequality and ethics.

This qualitative study utilized the protective action decision model to explore the risk perceptions and hazard adjustments to the earthquake risk of residents in El Reno, Oklahoma.

This dissertation demonstrates that it is possible to create a donor-acceptor system that can transform sunlight into electrons. By using site-directed synthesis, it was possible to create a novel trans-A2B2 porphyrin. In the pursuit of creating a supramolecular system, both the novel (TPA-BT)2ZnP and C60imidazole combined in solution such that the nitrogenous lone pair of C60 imidazole would coordinate axially to the zinc atom in the porphyrin. The conjugates' characterization utilized spectral, electrochemical, and computational techniques. Computational studies revealed in the optimized structure that the HOMO localized on the porphyrin and LUMO centered over the C60imidazole entity. Rehm-Weller calculations showed feasibility of singlet-electron transfer. Femtosecond transient absorption studies documented an efficient photoinduced charge separation in the conjugate. The subsequent work through steady-state and time-resolved transient absorption techniques that photoinduced electron transfer takes place between the synthesized phenylimidazole functionalized bisstyrylBODIPY (BDP(Im)2) and three selected zinc tetrapyrroles. This dyad consisted of BDP(Im)2 and either zinc tetratolylporphyrin (ZnP), zinc-tetra-t-butyl phthalocyanine (ZnPc), or zinc tetra-t-butyl naphthalocyanine (ZnNc) in a solution solvated by σ-dichlorobenzene (DCB). The three dyads (BDP(Im)2:ZnP, BDP(Im)2:ZnPc, and BDP(Im)2:ZnNc) were investigated by spectroscopic, computational, and electrochemical methods. The 1:1 complex of the dyads in optical absorption studies were approximately ~104 M-1 suggesting …

This dissertation is particularly focused on a novel approach of a wirelessly powered neuromodulation system for chronic patients. The inductively coupled transmitter (TX) and receiver (RX) coils are designed through optimization to achieve maximum efficiency. A power management unit (PMU) consisting of a voltage rectifier, voltage regulator along with a stimulation circuitry is also designed to provide pulse stimulation to genetically modified neurons. For continuous health monitoring purposes, the response from the brain due to stimulation needs to be recorded and transmitted wirelessly outside the brain for analysis. A low-power high-data duty-cycled impulse-radio ultra-wideband (IR-UWB) transmitter is designed and implemented using the standard CMOS process. Another focus of this dissertation is the design of a reverse electrowetting-on-dielectric (REWOD) based energy harvesting circuit for wearable sensor applications which is capable of generating a very low-frequency signal from motion activity such a walking, running, jogging, etc. A commercial off-the-shelf (COTS) based and on-chip based energy harvesting circuit is designed for very low-frequency signals. The experimental results show promising progress towards the advancement in the wirelessly powered neuromodulation system and building the self-powered wearable sensor.

This thesis is focused on understanding the correct method to simulate atomistic models to calculate coefficient of diffusion of water through the membrane. It also aims to fix the method previously used in molecular modelling in which the simulation results did not match the experimental results. These membranes will be used in air dehumidification systems. The four types of membranes namely, polyurethane, polyurethane with silica nano particles, polyurethane with silica nano particles and amine surface modifier, and polyurethane with silica nano particles and aniline surface modifier. These membranes were also simulated to understand the effects of temperatures and pressure using molecular dynamics. The software packages used are MAPS 4.3, Avogadro, EMC, OVITO, and LAMMPS. MAPS, Avogadro and EMC were used to model the membrane at an atomistic level while LAMMPS is used to simulate the model generated. OVITO is used to analyze the simulation visually. The movement of water vapor molecules were tracked through the membrane in the simulation and diffusion coefficient was calculated using Mean square displacement equation. To create a realistic model, silica was dispersed in the Polyurethane matrix, simulated under standard atmospheric conditions. These results will help in further optimizing the membrane for air dehumidification. This will …

The Luftwaffe Field Divisions have remained on the periphery of World War II historiography for over seventy years, overshadowed by the myth of German military excellence during the conflict. The Heer is still known for lightning-quick attacks, brutal firepower, ably trained soldiers, and formidable success on the battlefield; an army of almost faceless, remorseless pain that grimly and efficiently faced down the Allies until the very end. Only recently, flaws have begun opening in this pristine picture as historians have examined how quickly the quality of the German army deteriorated from 1942-onward. Despite the vast landscape of scholarship on the war and the recent historical analysis of the weaknesses the Germans suffered, serious study on the creation and management of the Luftwaffe Field Divisions has been sparse. What has been written about them since 1945 has done little to offer a full picture of the units, their creation, or their significance to the German war effort. The purpose of this study was to fulfill this need by answering the necessary questions about the divisions, provide a complete history of the units, and place the LwFDs properly within the historiography of the Second World War.

Chinese art songs—which are derived from over four thousand years of Chinese culture and combine unique Chinese literary and musical flavors with Western compositional techniques—remain largely unknown in the Western world. Chinese art song, a treasure of a genre, deserves more attention from Western singers and scholars. With a population of 1.41 billion, China has the largest potential market for bel canto singing. Not only will studying Chinese art songs enrich a singer's worldview and repertoire choices, doing so will also be advantageous when singing internationally. In order to assist non-Chinese-speaking singers overcome the difficult language barrier that often prevents them from studying Chinese art songs, I have chosen six songs by the renowned early twentieth century Chinese composer, Huang Zi (1904–1938) to analyze. Although he remains virtually unknown in the Western scholarly world, Huang's Chinese art songs, which include both ancient and contemporary Chinese poetry as well as Chinese and Western musical characteristics, are representative of this genre. By analyzing the poetry and musical settings of six Chinese art songs by Huang Zi, providing pronunciation instructions for Mandarin Chinese, word-for-word and poetic translations, practical International Phonetic Alphabet (IPA) transcriptions from the Pinyin system, and creating an interpretive guide of …

Compared to non-immigrant families of children with autism spectrum disorders (ASD), immigrant families tend to experience more challenges securing an evaluation, obtaining a diagnosis, and accessing services for their child/children diagnosed with ASD. Several studies investigated the experiences of various groups of immigrant families. They found that the delays can be attributed to cultural differences in the way families interpret the meaning of ASD and their perceptions of the causes and treatment for ASD. Additionally, a lack of knowledge about ASD and fear of the stigma associated with ASD impacted immigrant parents' willingness to seek a diagnosis. However, few studies examined how Caribbean immigrants living in the United States experience a diagnosis of ASD for their child/children. This qualitative study explored Caribbean immigrant families' perceptions and experiences with ASD. A semi-structured, in-depth interview was used to collect data on families' experiences about symptoms, causes, and treatments of ASD, as well as their sources of support. The data were coded and analyzed using interpretative phenomenological analysis (IPA. Four themes were identified and discussed: A new world, emotional and physical burden caring for a child with ASD, attitudes about ASD in native cultures, and adapting to the new situation.

This work explores a continuum representation for diffuse layer models, thereby endowing continuum embedding models the ability to capture electrostatic phenomena in the environment such as the existence of electrolyte ions, and the nature of ionic liquids. It introduces a new field-aware continuum model that adjusts the size of the quantum regime per atom based on the distribution of charge in a system. The model accounts for the asymmetric nature of solvent distribution when applied to cations versus anions; it also overcomes the need to parameterize continuum interface models for different charged systems. The continuum representation of cavitation in water does not account for the tendency for water to form a hydrogen bonding network that is broken due to the formation of cavities. This effect is a major contributor to hydrophobic solvation and is an important precondition to the investigation of solvated proteins with continuum embedding. A new model inspired by machine learning advances is trained on molecular dynamics simulations due to the difficulty of isolating the cavitation energy term in experiment. Thermodynamic integration is used to calculate the energy from a step-like repulsive potential from cavities in TIP4P water, cavities ranging from small organic molecules, to small proteins. Predictions …

Although markets for alternative batteries, such as Li-ion, are growing, Pb-alloy batteries still dominate the market due to their low cost and good functionality. Even though these Pb-alloy batteries have been around since their discovery in 1859, little research involving advanced characterization techniques, such as synchrotron radiation X-ray diffraction (SR-XRD) and transmission electron diffraction (TEM) have been performed on Pb-alloys and sulfation, a failure mode in lead acid batteries, with regards to thermally- and electrochemically-induced changes at the atomic and microstructural scale. Therefore, there is a need to close this scientific gap between research and the application of Pb-alloy battery material. The main objectives of this research are to examine the process of sulfation and its growth mechanisms as well as to study the effects of minor alloying additions in Pb-alloy material. In the first case, nucleation and growth mechanisms of PbSO4 nano- and micro-particles in various solutions are examined using TEM to potentially reduce or control the buildup of PbSO4 on battery electrodes over time. The time dependency of particle morphology was observed using various reaction conditions. This insight can provide avenues to reduce unwanted buildup of PbSO4 on battery electrodes over time which can extend battery life and …

Chinese contemporary composer Qigang Chen describes himself as "a Chinese tree replanted in France." His piano solo work Instants d'un Opéra de Pékin presents both Eastern and Western elements equally. While the main motives and melodic ideas are based on Chinese modes and scales, Chen incorporates many Western compositional techniques, particularly those of Olivier Messiaen, such as fragmentation and elimination, rhythmic augmentation and diminution, octave displacement among others. In this dissertation, I review the historical development of Peking Opera. Through the musical examples, I also illustrate the incorporation of two fundamentally different musical backgrounds and compositional styles that interact, express, and present themselves as equally relevant in both Eastern and Western musical language.

Millions of students with disabilities in the United States have access to educational programming to assist and provide special education support services. In existence for mere decades, special education as it currently stands was founded on groundbreaking legislation and refining law in the form of the Individual with Disabilities Education Act (IDEA). The most recent revision of this law in 2004 significantly extended parents' rights to be decision-makers in the educational planning process for children with disabilities. A litany of research into parent experiences of the IEP and special education process reveals that parents consistently report feelings of being marginalized in the decision-making process. A systematic literature review conducted by the author revealed that parents and family members of children with ASD report broadly similar themes of dissatisfaction with the special education process and communicating with staff. The current research proposal seeks to investigate the interaction experiences with Licensed Specialist in School Psychology (LSSP) personnel of parents and family members of elementary-aged children with ASD. LSSPs, recognized as possessing expertise on autism spectrum disorder amongst special education evaluation personnel, often conduct evaluations for students with ASD.

The feedback control system is defined as the sampling of an output signal and feeding it back to the input, resulting in an error signal that drives the overall system. This dissertation focuses on the stabilization and performance of state feedback control systems. Chapters 3 and 4 focus on the feedback control protocol approaching in the multi-agents system. In particular, the global regulation of distributed optimization problems has been considered. Firstly, we propose a distributed optimization algorithm based on the proportional-integral control strategy and the exponential convergence rate has been delivered. Moreover, a decentralized mechanism has been equipped to the proposed optimization algorithm, which enables an arbitrarily chosen agent in the system can compute the value of the optimal solution by only using the successive local states. After this, we consider the cost function follows the restricted secant inequality. A dynamic event-triggered mechanism design has been proposed. By ensuring the global regulation of the distributed proportional-integral optimization algorithm, the dynamic event-triggered mechanism efficiently reduces the communication frequency among agents. Chapter 5 focuses on the feedback control protocol approaching the single-agent system. Specifically, we investigate the truncated predictor feedback control of the regulation of linear input-delayed systems. For the purpose of …

This dissertation begins with a critical preface that examines the haunted present and its impact on writing for third and fourth generation Holocaust survivors. Then follows a collection of poetry and prose that examine themes of intergenerational trauma, experiences of the Shoah, grief, and chronic illness.

In a society fixated on leaders, where does that leave followers? Followership highlights the follower in the leadership process, examines who are followers, and explores how and why people follow. Much of the existing literature on followership has focused on classifying followers into follower types. However, less is known about why an employee might enact a particular follower role. The purpose of this dissertation is to understand how leaders influence the likelihood that followers to enact a particular follower role orientation, either coproducing or passive. Specifically, this research contributes to understanding the impact of transformational leadership on follower motivation and follower role orientation. An additional contribution of this dissertation is to establish the theoretical mechanism that explains the connection between leader behavior and follower role orientation by integrating self-determination theory (SDT) into the process of followership. Through SDT, we gain understanding of the origins of these roles by explaining their underlying motivation. Study 1 consisted of sequential experiments with a between-subject design that used distinct vignettes for transformational leadership and work-based need satisfaction. Findings support the causal relationship between transformational leadership and follower needs satisfaction; however, the casual relationship between follower need satisfaction and follower role orientation was not significant. …

This study examines the relationship between proposed desalination plants and increased plastic pollution along the Texas Gulf Coast. It specifically focuses on their expected impact on communities in the area and was conducted for Society of Native Nations. The goal was to gather information about environmental ideologies and experiences from different environmental experts and scientists to educate community members and inform policy recommendations. The study relied on semi structured interviews and archival research to understand how environmental experts and scientists envision the future, how they interpret the impact of desalination plants as related to plastic pollution. Ideas that guided this research include decolonial methodologies, political ecology, Indigenous research agendas, environmental justice and knowledge, cultural hybridity, and the anthropology of the borderlands. This research provides actionable steps and recommendations to improve environmental education in Texas Gulf Coast communities on the U.S./Mexico border and to reduce plastic pollution in order to ensure that these communities have ample amounts of water supply without relying on desalination plants.

High entropy alloys (HEAs) or complex concentrated alloys (CCAs) represent a new paradigm in structural alloy design. Molten salt corrosion behavior was studied for single-phase HEAs such as TaTiVWZr and HfTaTiVZr, and multi-phase HEAs such as AlCoCrFeNi2.1. De-alloying with porosity formation along the exposed surface and fluxing of unstable oxides were found to be primary corrosion mechanisms. Potentiodynamic polarization study was combined with systematic mass–loss study for TaTiVWZr, HfTaTiVZr, and AlCoCrFeNi2.1 as a function of temperature. Electrochemical impedance spectroscopy (EIS) was used for monitoring the corrosion of TaTiVWZr and HfTaTiVZr in molten fluoride salt at 650 oC. TaTiVWZr and AlCoCrFeNi2.1 showed low corrosion rate in the range of 5.5-7.5 mm/year and low mass-loss in the range of 35-40 mg/cm2 in molten chloride salt at 650 oC. Both TaTiVWZr and HfTaTiVZr showed similar mass loss in the range of 31-33 mg/cm2, which was slightly higher than IN 718 (~ 28 mg/cm2) in molten fluoride salt at 650 oC. Ta-W rich dendrite region in TaTiVWZr showed higher corrosion resistance against dissolution of alloying elements in the molten salt environment. AlCoCrFeNi2.1 showed higher resistance to galvanic corrosion compared to Duplex steel 2205 in molten chloride salt environment. These results suggest the potential use …

This mixed methods study was designed for two purposes: (1) to provide district and campus leaders data about the effectiveness of how the studied district's READ 180 and System 44 literacy intervention programs were implemented, and (2) to assess the programs' impact on student outcomes to determine whether the district was meeting literacy goals and if recommendations identified in the previous program evaluation report were addressed. Archival de-identified student achievement data and focus group interviews comprised gathered data. Although quantitative data show some growth from both programs since the prior program evaluation, the programs failed to meet the 2018-2019 intended outcome of at least 70% of participating students meeting expected Lexile growth except for READ 180 participants at four elementary and six secondary campuses. System 44 participants failed to meet the district's intended outcome at any campus level. Data showed that placement of elementary English learner (EL) students in both literacy programs was disproportionate to the district's EL population. System 44 students with an EL indicator had a negative correlation with growth in Lexile score, indicating that ELs are not being served well by this program. Qualitative data presented little evidence that the 2017-2018 program evaluation recommendations were effectively implemented. …

This thesis is the first comprehensive description and analysis of the inflectional morphology of Mankiyali — an endangered Indo-Aryan language spoken by under 500 people in rural Mansehra District, in Khyber Pakhtunkhwa Province, Pakistan. The study primarily focuses on the morphological patterns involved in inflecting nouns, pronouns, adjectives, and verbs, and discusses the inflectional requirements in forming postpositional and adverbial phrases. With documentary efforts still in early stages and prior research focusing primarily on the phonological characteristics of the language, the study contributes to addressing the absence of linguistic materials available on this language and provides ground for further investigations.