One of the famous Russian composers and a pianist himself, Sergei Prokofiev (1891–1953) composed a vast quantity of piano music. His nine piano sonatas represent well how he projected his musical individuality and the principles that he addressed in his autobiography: classical line, modern trend, toccata line, lyrical line, and grotesque line. However, even though Prokofiev's piano sonatas are considered one of the important collections in the piano repertoire, not all of them have gained popularity and only a few tend to be frequently performed by pianists today. For this reason, this dissertation focuses on one of his less-performed piano sonatas, No. 4 in C minor, Op. 29. The pianists György Sándor and Boris Berman were chosen as specialists in Prokofiev's piano works, and their performance editions and recordings are analyzed and compared as main references. This study provides analysis and a performance guide to this piano sonata. This guide discusses pedaling, fingering, phrasing, touch, voicing, tempo suggestion, articulation, hand distribution, and expression.

The current study is the first repeated-measures design exploring the impact of child-centered play therapy (CCPT), an evidence-based child psychotherapy intervention, on autistic children's social-emotional assets, and emotional and behavioral problems across four times during intervention based on teacher reports. Participants consisted of 19 autistic children recruited from two Title-1 elementary schools in the southwest United States who were aged between 5 years and 8.25 years (M = 6.22, SD = .91), presented with varied levels of cognitive functioning and speech and language abilities. Over 60% of participants were identified by their parents as children of color. Results indicated participants' increased time in CCPT predicted statistically significant improvement in social-emotional assets measured by Social-Emotional Assets and Resilience Scales-Teacher (SEARS-T) total score with a large effect size. Results also indicated participants' increased time in CCPT predicted a statistically significant reduction in emotional and behavioral problems of irritability, social withdrawal, and hyperactivity/ noncompliance, measured by Aberrant Behavior Checklist-Second Edition (ABC- 2), with large effect sizes. Findings of this study revealed substantive changes in social-emotional assets as early as 8 CCPT sessions, and reduction of emotional and behavioral concerns as early as 12 CCPT sessions. Clinical significance, implications for practice, and limitations of …

Seventeen new dithiophenyl- and napthodithiophenyl- fused porphyrins were synthesized; from these an additional 7 porphyrin oligomers were also synthesized. Additionally freebase 2,7-dimethoxytriphenylene fused porphyrin was also synthesized from a freebase precursor. Aromatic indices NICS and AICD were used to evaluate these new molecules.

The bristlenose pleco (Ancistrus cirrhosus) is a species of armored catfish in the Loricariidae family that breathes air facultatively when the aquatic environment becomes hypoxic. The bristlenose pleco uses its highly vascularized stomach as an air breathing organ. The two main goals of this developmental study were to determine the size of onset of air breathing and to determine the frequency of air breathing behavior in bristlenose plecos from juveniles to adults. Developing juveniles reach functional maturity within four to six months of hatching and grow to an adult size of eight to ten cm in length. To examine the developmental timing for the onset of air breathing, we tested different sized juveniles beginning at one cm up until 8 cm in length. The developmental timing for the onset of air breathing was measured by exposing each fish to a slowly decreasing aquatic oxygen content from 100% air saturation down to 8% air saturation. Fish were first able to breathe air at just over 2 cm and 1 gram in mass. There was a weak negative correlation between fish length and % air saturation at which air breathing began. When exposed to 15% air saturation, frequency of air breathing was …

Principal workloads and demands are steadily increasing while principal health and well-being are declining, resulting in increased rates of principal turnover. Currently, principals are experiencing numerous work-related stressors that are increasing burnout. In many cases, school leaders are sacrificing their families and health to lead their schools. As school success is linked with principal leadership, principal burnout and wellness demands further discussion and investigation. Yet, there is a limited body of research that examines the lived experiences of principals who experience burnout. Consequently, this researcher conducted a phenomenological qualitative study of 12 Texas K-12 elementary and secondary public school principals in central Texas. Findings pointed out that principals experience burnout in waves. While the COVID-19 pandemic greatly impacted the burnout principal experienced, political divisiveness and social media attacks intensified their burnout. Additional findings revealed that burnout can cause principals to question staying in their role and negatively affect the quality of their family relationships as well as their health. Principals coped with their burnout by being aware of their emotions, spending time doing things that brought happiness, exercising, and reverting back to their faith in God. Additionally, principals believed that having knowledgeable district leaders who are visible, trust their leadership, …

Lesbian, gay, bisexual, transgender, questioning, intersex, and queer (LGBTQIQ) adults are more likely to report experiences of complex trauma, and have detrimental mental health effects as a result, when compared to cisgender, heterosexual adults. However, LGBTQIQ adults have excellent capacity for resilience. In this phenomenological investigation, I explored the lived experiences of resilient LGBTQIQ emerging adults (N = 11) who have histories of complex trauma. Five themes emerged as a result of this study, including (a) abuse and neglect, (b) emotional experiences during and after trauma, (c) connections are essential, (d) getting through hard times, and (e) struggles in the counseling process. The results indicated implications for counselors and counselor educators to better address the experiences of complex trauma and identify resilience in LGBTQIQ emerging adults. Recommendations are provided to counselors and counselor educators for integrating knowledge and actions into their counseling, teaching, and supervision practices, as well as for parents and caregivers, teachers and school personnel, and policymakers.

Research identifies male athletes as a subpopulation at risk for developing eating disorders and disordered eating (ED/DE). Petrie and Greenleaf's sociocultural model proposes that various correlates contribute to the etiology of ED/DE in athletes. Among the correlates, body satisfaction has been identified as a direct precursor to ED/DE symptomatology in male and female athletes. Recent research has noted self-compassion's utility in alleviating the outcomes of poor body image and ED/DE through several pathways. However, researchers have yet to examine self-compassion in relation to body satisfaction and ED/DE in male athletes or the temporal relationship between these variables. This study longitudinally examined the direct and indirect effects of self-compassion on body satisfaction and ED/DE symptomatology in a mixed-sport sample of 452 male collegiate athletes by testing the cross-lagged, temporal relationships among self-compassion, body satisfaction, and ED/DE symptomatology across a four-month time frame. Time 1 self-compassion was neither directly related to Time 2 body satisfaction (β = 0.02, p = .755), nor indirectly to Time 2 ED/DE (β = -0.002, 95% BCaCI [-0.028, 0.014]) when controlling for Time 1 scores. Recent research supports my finding and suggests that the effects of self-compassion on body satisfaction and ED/DE symptomatology may be dependent on …

The Nit1C cluster is a conserved gene cluster of seven genes that confers bacterial growth on cyanide as the sole nitrogen source. Bacteria with this ability are referred to as cyanotrophs. To date, the linkage between Nit1C and cyanotrophy has only been demonstrated for environmental isolates but the cluster also exists in certain medically related bacteria. In this study, a nosocomial isolate, Acinetobacter haemolyticus ATCC 19194, carrying Nit1C also displayed the ability to grow on cyanide. Growth on cyanide was accompanied by the induction of the cluster as was the mere exposure of cells to cyanide. Expression of the cluster was determined by measuring the activity of the nitrilase (NitC) coded for by the cluster and by transcriptional analysis (qRT-PCR). However, a disconnect between nitC message and NitC protein was observed depending on the phase of the growth cycle, the disconnect being related to proteolytic digestion of the NitC protein. Ironically, the cluster was also discovered to be upregulated in the absence of cyanide under nitrogen starvation conditions paralleling biofilm formation. The basis of the genetic linkage to cyanotrophy is not understood but taken together with results showing that nitrogen starvation and biofilm formation are also physiologically associated with Nit1C …

This research study examined the implementation of an extended reality (XR) lab on a community college campus to facilitate student and faculty access to immersive learning resources. The study, conducted during one skills day, involved 46 students and was designed to understand if integrating immersive VR into emergency medical technician (EMT) education could enhance learner confidence and motivation, develop problem-solving and analytical thinking skills, and thus connecting the classroom learning with real-world application. The majority of participants reported increased motivation and engagement, alongside improvements in learning outcomes like knowledge retention and skill development. Applying the unified theory of acceptance and use of technology (UTAUT) model revealed performance expectancy, effort expectancy, social influence, and facilitating conditions as key determinants of VR adoption in EMT education. While no significant overall performance enhancement was observed, VR training showed potential to boost motivation, confidence, and specific performance aspects. Furthermore, student perceptions towards VR in EMT education were largely positive, thereby suggesting its utility in immersive scenario training, skill acquisition in a risk-free environment, enhancing learner engagement, and real-world situational preparedness. VR demonstrated promise as a transformative tool in EMT education, necessitating further research to fully exploit its potential in diverse learning environments.

This study analyzed the effects of acculturation, locus of control, and incidence of inhalant use on Mexican Americans. Information was collected from 275 subjects at three middle schools and one treatment center. The instrument consisted of Levenson's Locus of Control Scale, the Acculturation Rating Scale for Mexican Americans, and an incidence of use and family relationship questionnaire developed for this study. Statistical analysis indicated a relationship between acculturation and inhalant use. Further examination revealed relationships between a family members' use and subjects' inhalant use; subjects' alcohol use and inhalant use; and subjects' marijuana use and inhalant use. Information implied that prevention and intervention programs should focus on children of substance users and further research is needed surrounding the role of acculturation.

This study investigated a new approach to achieving high energy density supercapacitors (SCs) by using high surface area self-activated carbon from waste coffee grounds (WCGs) and modifying 3D printed electrodes' porous structure by varying infill density. The derived activated carbons' surface area, pore size, and pore volume were controlled by thermally treating the WCGs at different temperatures (1000˚C, 1100˚C, and 1200˚C) and post-treating with HCL to remove water-soluble ashes and contaminants that block activated carbon pores. Surface area characterization revealed that the carbon activated at 1000˚C had the highest surface of 1173.48 m2 g-1, and with the addition of HCL, the surface area increased to 1209.35 m2 g-1. This activated carbon was used for fabricating the electrodes based on the surface area and having both micropores and macropores, which are beneficial for charge storage. Direct ink writing (DIW) method was utilized for 3D printing SC electrodes and changing the electrode structure by increasing the infill densities at 30%, 50%, and 100%. Upon increasing the infill densities, the electrodes' mass increased linearly, porosity decreased, and the total surface area increased for the 30% and 50% infill electrodes but decreased for the 100% infill electrode. Cyclic voltammetry (CV) test on the assembled …

It would be impossible to trace the evolution of the form of the scherzo without treating also to some extent the history of the minuet, as the scherzo would hardly have come into being in the way it did had there not been the minuet, even though as the scherzo grew to maturity it resembled less and less its parent-form. This thesis examines the early use and origin of the scherzo, and its use and evolution in the works of Beethoven.

The work is a collection of poems entitled The Sometime Joy, comprising a mix of poems completed before and during my studies at UNT. The manuscript is my second completed full-length work after my first manuscript, the unpublished Night, Translated. The Sometime Joy shares many of the same themes with its predecessor, although stylistically the more recent work hews much more strongly toward the infusion of speculative and fantastical elements (just one example being the apocalyptic poem "Petal Storm"). The speculative components of the collection allow me to express and utilize the full range of my imagination, to use poetry to explore alternate existences and to create allegories, such as the "Market" series of poems, where capitalism is embodied as a chimerical beast that would fit in a horror film. The collection functions as my exploration of the intersections between folklore and pop culture, a series of meditations on the strangeness of human perspectives and how the relation between perceiver and the perceived alloys and transforms both. The collection also delves into horrific subjects varying from serried monsters (wendigos, the capitalist system, J. Edgar Hoover), the apocalypse, and the capacity of mundane humans to be cruel to each other, but …

Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous environmental toxicants found in anthropogenic mixtures such as crude oil, air pollution, vehicle exhaust, and in some natural combustion reactions. Single PAHs such as benzo[a]pyrene (BaP) also impact fish behavior when animals are exposed in early life stages and for short periods of time. Aquatic animals such as fish may encounter BaP through road runoff and oil spills, but few studies have examined the impact of aqueous exposure on adult fish, and fewer have examined the resulting fitness-relevant behavioral consequences of BaP and PAH mixtures and their long-term persistence. This dissertation targets this gap in the literature by examining how aqueous exposure to BaP influences anxiety-like behavior, learning, and memory in adult zebrafish, and how parental exposure to the PAH mixture, crude oil, combined with hypoxia affects social and exploratory behavior in unexposed larval zebrafish. We found that learning and memory were not affected by 24 hour exposure to BaP, that anxiety-like behavior was minimally affected, and that locomotor parameters such as distance moved and times spent in darting and immobile states were significantly altered by exposure to BaP. Additionally, we found that parental exposure to crude oil and hypoxia decreased larval velocity. Additionally, …

In both Mexico and the U.S., abortion rights protests have been taking place in recent years, but while Mexico is moving forward with the legalization of abortion, the U.S. is going in the opposite direction with the overturning of Roe v. Wade. Through framing, journalists select salient information, shaping audiences' understandings of social movements. The protest paradigm suggests that due to journalistic norms and routines, journalists tend to focus on disruptive acts, which can stigmatize the protest. Additionally, scholars have stated that men and women photojournalists have different approaches to covering certain topics. This cross-national research combined a content analysis of photographs in U.S. and Mexican media with in-depth interviews with photojournalists to determine if photojournalists in each country are reproducing the protest paradigm and if there are gendered differences in how they photograph abortion rights protests. The results revealed that women and men photograph differently, with women capturing more intimate photos; however, photojournalists' gendered experiences are also influenced by how protesters perceive them. Furthermore, the study suggests that photojournalists from both countries are questioning objectivity and are attempting to move away from the protest paradigm. This research provides valuable insights into visual framing theory, protest news coverage, and gendered …

Research has extensively documented the mental health disparities that exist for ethnic and racial minorities living in the United States. With respect to Latinos, such disparities are marked by less access to care and poorer quality of mental health treatment. Studies on Latino mental health have found differences in mental health service utilization among ethnic subgroups and among different generations of Latinos. However, empirical data examining specific attitudes and barriers to mental health treatment among different generations of Latinos are limited. This study explored the relationships between Latino generational status, mental health service utilization, psychological distress, and barriers to mental health treatment. An online survey (N = 218) included samples of first-generation (n = 67), second-generation (n = 86), and third-generation or beyond Latinos (n = 65). Results indicated first-generation Latinos had the lowest rate of mental health service utilization and reported greater linguistic and structural knowledge barriers, however, they had lower perceived social stigma of mental health services when age at migration was considered. Implications of these findings for research, mental health service providers and mental health policy are discussed.

The production of Hate, albeit a historical, long-existing, and relentless process, has been reinvigorated by the simultaneously globalizing and localizing power of cyberspace. Techno-capitalism, often perceived as the actuating force of neoliberal globalization, has emanated novel formations of social interaction, community formation, the dissemination of ideology, and political mobilization. Far-right ideology is being globalized throughout popular social cyberspaces like YouTube by thought leaders or ideological entrepreneurs, while users then localize within alternative social cyberspaces like Gab, wherein their beliefs are reaffirmed, identities are consolidated, and communities are formed. This process is integral to the materialization of far-right extremism, manifested as political action in real, physical space, and thus, illuminates new expressions of real virtuality, various politics of scale, and contemporary consequences of neoliberal globalization.

This dissertation examines the impact of trauma on information-seeking behaviors and decision-making processes. Essay 1 includes a qualitative analysis of the transcripts obtained from interviews with four military service members diagnosed with PTSD. The results showed that 75% of this small sample population exhibited addictive behavior that was presented in their information behaviors. All four members indicated that the excessive extent to which they seek information is related to the perceived importance of the information and their level of trust in the sources. Low trust in information sources increases the number of sources searched for validation in this population. Essay 2 involved the collection and analysis of survey data. The results of the stepwise backward regression show that two trauma variables (adult sexual assault, sudden fear) have a significant combined negative effect on decision-making in this population. The analysis and results of a different survey are presented in Essay 3. The stepwise logistic regression analysis results conducted on the summated scales developed showed a strong positive link between trust in scientific experts for scientific information and the dichotomous dependent variable trust in social media for news. The research conducted in this dissertation extends the understanding of how trauma affects people's …

Interfacial mechanical properties of adhesive joints are very crucial in board applications, including composites, multilayer structures, and biomedical devices. Establishing traction-separation (T-S) relations for interfacial adhesion can evaluate mechanical and structural reliability, robustness, and failure criteria. Due to the short range of interfacial adhesion such as micro to nanoscale, accurate measurements of T-S relations remain challenging. The advent of machine learning (ML) became a promising tool to predict materials behaviors and establish data-driven mechanical models. In this study, we integrated a state-of-the-art ML method, finite element analysis (FEA), and standard experiments to develop data-driven models for characterizing the interfacial mechanical properties precisely. Macroscale force-displacement curves are derived from FEA with incorporation of double cantilever beam tests to generate the dataset for ML model. The eXtreme Gradient Boosting (XGBoost) multi-output regressions and classifier models are used to determine T-S relations with R2 score of 98.8% and locate imperfections at the interface with accuracy of around 80.8%. The outcome of the XGBoost models demonstrated accurate predictions and fast calculation speed, outperforming several other ML methods. Using 3D printed double cantilever beam specimens, the performance of the ML models is validated experimentally for different materials. Furthermore, a XGBoost model-based package is designed to …

Since the reveal of the Black-White achievement gap in 1966, leaders and policymakers have attempted to close the gap to no avail. The purpose of this explanatory sequential mixed methods study was to examine the relationships between self-efficacy, grit, and academic achievement of Black and White students. For the first two research questions,I sought to determine whether there were relationships between self-efficacy, grit, and academic achievement as defined by the PSAT 10 Reading or Math results. Students were administered self-efficacy and grit surveys to establish their corresponding self-efficacy and grit levels. A Pearson correlation analysis was performed to determine the bivariate relationships between participants' self-efficacy and grit levels and their 2021 PSAT 10 Reading and Math results. Statistical significance was discovered; specifically, a positive correlation existed between Black students, grit, and their academic achievement on PSAT 10 Math. For the final two research questions, I solicited students' perspectives of self-efficacy and grit and how they perceived the two constructs were associated with their academic success. Semi-structured focus group interviews were conducted to better explain student perspectives from their Phase 1 survey responses, which produced themes associated with self-efficacy and grit. Students shared how they perceived these traits impacted their academic …

Logistics 4.0 suggests that increased automation can enhance performance, while Logistics 5.0 emphasizes the advantages of a modern workforce that combines humans and emerging technologies. However, the logistics industry needs a deeper understanding of human factors, an area that has been overlooked so far. To bridge this research gap, this dissertation investigated distracted driving behavior among individuals involved in transportation and logistics-based applications. This investigation employed both qualitative and quantitative research methods. Essay 1 focuses on a systematic literature review (SLR) that comprehensively analyzes published research on self-response studies regarding distracted driving behavior. The study identifies five overarching categories of distractions: (a) cell phone-related, (b) technology-related, (c) nontechnology-related, (d) psychological, and (e) personality. The findings underscore the substantial research conducted on self-reported distractions associated with cell phones and technology. Essay 2 employs the protection motivation theory (PMT) to develop hypotheses that predict the engagement of young drivers in texting while driving (TWD). In addition to TWD, the survey also included cognitive failure to examine the indirect effects of PMT on TWD within a mediation framework. The results, obtained through structural equation modeling with 674 respondents aged 18-25, indicate that several factors including response cost, threat vulnerability, cognitive failure, self-efficacy, and …

The historical success of friction stir welding (FSW) on materials such as aluminum and magnesium alloys is associated with the absence of melting and solidification during the solid-state process. However, commercial adoption of FSW on steels and other non-ferrous high-strength, high-temperature materials such as nickel-base and titanium-base alloys is limited due to the high costs associated with the process. In this dissertation, the feasibility of using an FSW approach to fabricate certain structural components made of nitrogen containing austenitic stainless steels that go into the vacuum vessel and magnetic systems of tokamak devices was demonstrated. The FSW weldments possessed superior application-specific mechanical and functional properties when compared to fusion weldments reported in the technical literature. However, as stated earlier, the industrial adoption of FSW on high temperature materials such as the ferrous alloys used in the present study is greatly limited due to the high costs associated with the process. The cost is mainly dictated by the high temperature FSW tools used to accomplish the weldments. Commercially available high temperature FSW tools are exorbitantly priced and often have short lifetimes. To overcome the high-cost barrier, we have explored the use of integrated computational materials engineering (ICME) combined with experimental prototyping …

This qualitative case study aims to understand the ways in which students identifying as Native American, American Indian, and Indigenous navigate attending a university informed by their identities. Through semi-structured interviews with Indigenous students and participant observation with a Native American student organization, this study identified how this demographic of students navigate and conceptualize their identities as Native and Indigenous peoples, the benefits of joining a Native American student organization on their university campus, and how they experience the university as a racialized organization. One overarching and three nuanced research questions were examined to illustrate how students' identities inform how they experience university life with themes surrounding Native and Indigenous identity construction informed by federal policy and Indigenous community practices, collective identity and student involvement, sense of belonging at college, and understanding universities as racial organizations that participate in racial capitalism. The study findings indicated that students' identities are regularly negotiated, engaged with, and leveraged throughout their college experiences and recommendations were made for how colleges and universities can more adequately and equitably serve this student demographic.

The histories of acoustic ecology, field recording, and soundscape composition are intertwined. This combination of disciplines has lead to the potential for powerful insights, but an over-emphasis on music composition using recorded sound has to led to some problematic tendencies in the study of soundscapes. I begin by tracing the development of acoustic ecology and related disciplines, leading to a proposal for a practice of acoustic ecology that centers the study of all sounds from an ecological perspective and incorporates the insights of creative practices. I include the results and data from my acoustic surveys in Patagonia, Iceland, and Texas. These three locations are varied in their climate, and they are all threatened by noise pollution or human interference from one source or another. Each survey plots out the daily sound activity in a given location and then includes information such as decibel level and the amount of anthropogenic noise. Using the field recordings from my acoustic surveys, I composed a non-linear piece, Resonance Ecology, that generates soundscapes by combining sounds from different locations based on connections such as geography or weather patterns. There is also the option for acoustic performers to perform alongside the electronics, creating an unpredictably evolving …