bluuebunny/crossref_metadata_2025 huggingface dataset:
Image Comparison between Original and Duplicated Books on Goryeo History (高麗史) from 15th and 16th Centuries in Joseon Dynasty of Korea: Metal Type Prints vs. Re-engraved Woodblock Prints
Authors: Yoo Woo Sik , Yoo Choon Dong
Published: January 2025

In 1482, during the Joseon dynasty (조선, 朝鮮, 1392-1910), volumes of books on the history of the previous Goryeo dynasty (고려, 高麗, 918-1392) were written and printed with metal type. The similarities and differences between these books on the Goryeo history (고려사, 高麗史), printed with metal type in the 15th century and the identical book printed using re-engraved woodblocks in the 16th century were compared. The printed pages had the same width in both the metal printed books and woodblock books, but differences in page height were observed: the original metal printed books from the 15th century had larger heights than the woodblock printed books from the 16th century. Using image comparison and analysis between various versions of works of Goryeo history, we investigated the correlations between the directional shrinkage of the wood as a potential root cause of the size difference in only one direction between the metal type and the re-engraved woodblock-printed versions. It was confirmed that the comparison of the size and directions of the printed areas is a very effective method of determining the printing method and the sequence of changes in very similar versions of old Korean books.
AIH-PBC Overlap Syndrome Unmasked by Tuberculosis Treatment: Report of Two Cases and Literature Review
Authors: Tababi Ramzi , Kchir Hela , Debbabi Habiba , Nefzi Ahmed , Yacoub Haythem , Cherif Dhouha , Hassine Hajer , Bellil Khadija , Haouet Slim , Maamouri Nadia
Published: January 2025

This article presents two patients who were diagnosed with genuine autoimmune liver disease (autoimmune hepatitis and primary biliary cholangitis overlap syndrome) during anti-tuberculosis therapy, which is a rarely reported occurrence. It highlights the challenges in distinguishing drug-induced liver injury from authentic autoimmune liver disease. It also points out the importance of considering autoimmune liver disease as a potential diagnosis revealed by the setting of drug-induced liver injury.
Argentometric determination of chloride content in tap water at Gimba city administration, South wollo, Ethiopia
Authors: Asfaw Melese Damtew , Belete Abere  Belay
Published: January 2025

Background This study investigates chloride concentrations in tap water samples from Gimba city administration, using the argentometric method to assess water quality. Chloride levels are a key indicator of water treatment effectiveness, particularly the adequacy of chlorination, which is critical for preventing waterborne diseases. Methods Chloride concentrations in tap water samples from various locations in Gimba city administration, were determined using the argentometric titration method. Silver nitrate (AgNO₃) was employed as the titrant to precisely quantify chloride ions. The water samples were collected from different sites in Gimba, and chloride levels were measured to evaluate the adequacy of water treatment processes. Results The chloride concentrations across all samples ranged from 52.8 mg/L to 71.9 mg/L, well below the World Health Organization’s recommended limit for drinking water. Significant variation in chloride levels was observed, with Dembesh exhibiting the highest concentration and Medera the lowest. Conclusion The low chloride concentrations suggest insufficient chlorination at the sampling sites, which may compromise the effectiveness of water disinfection and contribute to the prevalence of waterborne diseases in the region. The study underscores the need for enhanced water treatment and disinfection practices in Gimba city to ensure safe drinking water and reduce health risks.
Differential Treatment and Outcomes of Racial and Ethnic Minorities in Psychotherapy
Authors:   , Dimmick A. Andrew
Published: January 2025

Therapeutic alliance has been consistently demonstrated as a robust predictor of treatment outcomes, though the time in psychotherapy at which therapeutic alliance best predicts outcomes is unclear. Unfortunately, evidence suggests that racial and ethnic minority clients typically form weaker therapeutic alliances in treatment. The weaker development in therapeutic alliance among racial and ethnic minority clients may mediate discrepancies in treatment outcomes, including higher dropout rates. The purpose of this study was to explore this possibility by (1) investigating the temporal relationship between therapeutic alliance and treatment outcomes and (2) examining differences in therapeutic alliance ratings and treatment outcome, including unilateral termination, among racial and ethnic minority clients. The findings of this study may be integral to identifying and addressing psychotherapy treatment disparities that are tied to racial or ethnic minority status.
How Much Does Sleep Vary from Night to Night? A Quantitative Summary of Intraindividual Variability in Sleep by Age, Gender, and Racial/Ethnic Identity
Authors:   , Messman Brett A
Published: January 2025

Habitual (i.e., average or typical) sleep duration and sleep efficiency vary widely by demographic characteristics, including age, gender, and racial/ethnic identity. Despite a wealth of studies on demographic patterns in habitual sleep, these results are often based on cross-sectional surveys, which ask participants to retrospectively recall their "typical" or "recent" sleep. Yet, sleep is a highly dynamic behavior and may fluctuate substantially from night-to-night. This intraindividual variability (IIV) in sleep/wake patterns can be captured a multitude of ways, most commonly by using formula-based calculations. Although there is growing attention on the importance of IIV in sleep, findings on demographic differences are still inconclusive, and there are no guidelines for typical values of IIV in sleep. The present study quantitatively synthesized 8 international data sets (N = 2847 participants, 29,832 total days of sleep data), focusing on examining age, gender, and racial/ethnic identity differences in IIV in sleep measured via sleep diaries, actigraphy, and electroencephalography. Sleep duration and sleep efficiency varied widely from night-to-night within people (duration: 64-119 minutes; efficiency: 5-8%). Different metrics of IIV were strongly correlated within and across sleep measurement types. Younger adults had more IIV in diary and actigraphy sleep duration. Gender differences in IIV in sleep were inconsistent, and non-Hispanic/Latinx and White adults had less IIV in sleep compared to other racial/ethnic minority groups. Results emphasize the importance of assessing IIV in sleep, and show that even among healthy sleepers, sleep varies from night-to-night. Like mean sleep, there may also be disparities in IIV in sleep by demographic characteristics, highlighting a need for targeted interventions to stabilize sleep and improve health.
French and Canadian Inclusive Language Doctrine and Societal Attitudes
Authors:   , Diaz Taylor Irene Berthiaume
Published: January 2025

One of the most important French grammar rules is the rule of superiority: Masculine subjects always trump feminine subjects when there are multiple subjects. Superiority is closely followed by the acceptance that all nouns have a grammatical gender, either masculine or feminine. Since 1984, and over the span of forty years, these rules have been challenged on multiple levels of French society. The research conducted over the course of this thesis focuses on the mentality and reactions of the French people towards inclusive language made up of inclusive writing campaigns, the feminization of traditionally masculine names, career positions, and titles, and the introduction of gender-neutral forms of conjugating and neo-pronouns. The studied responses are be categorized into those of the French government, the Académie Française, as well as those from the Canadian government and the Office québécois de la langue française. Research demonstrates the existence of a clear division between "traditionalist" and progressive values at work within the afore-mentioned levels of French societal attitudes. While official government publications and committees seem to reflect a positive attitude towards the adoption of feminized terms, the lack of support for inclusive writing systems by the government contradicts this. This thesis outlines these responses and reactions, seeking to establish a timeline for the implementation and acceptance of feminized terms and neutralization efforts in both the French and Canadian governments.
Relaxation Time Approximations in PAOFLOW 2.0
Authors:   , Jayaraj Anooja
Published: January 2025

Electronic transport properties have been used to classify and characterize materials and describe their functionality. Recent surge in computational power has enabled computational modelling and accelerated theoretical studies to complement and accelerate experimental discovery of novel materials. This work looks at methods for theoretical calculations of electronic transport properties and addresses the limitations of a common approximation in the calculation of these properties, namely, the constant relaxation time approximation (CRTA). This work takes a look at the limitations of this approximation and introduces energy and temperature dependent relaxation times. This study is carried out on models and real systems and compared with experiments.
Memories in the Body: Looking at the Connection between Emotional Stress and Autoimmune Diseases
Authors:   , Shenberger Taylor
Published: January 2025

Autoimmunity is a modern age medical dilemma which is inextricably linked with emotional stress. Based on semi-structured interviews and participant Adverse Childhood Experiences (ACE) survey results, this study confirms that the autoimmune process may be initiated via psychosocial factors like emotional stress and childhood trauma. Ninety-three percent of participants experienced adversity or trauma in childhood, and 50% of participants talked about a period of prolonged stress that preceded the onset of their condition. This study also confirms the intimate and satisfactory relationship developed between patients and complementary and alternative (CAM) practitioners, who invite patients to be co-producers of health and holistically address patients' minds, bodies, and souls. Finally, this study demonstrates the incredible resiliency of people diagnosed with autoimmune conditions and how they find healing and meaning post-diagnosis.
Defect Modulated Properties of Molybdenum Disulfide Monolayer Films
Authors:   , Jiang Yan
Published: January 2025

In this dissertation work, the study focuses on large areal growth of MoS2 monolayers and a study of the structural, optical and electrical properties of such monolayers before and after transfer using a polymer-lift off technique. This work will discuss the issue of contact resistance and the effect of defects (both intrinsic and extrinsic) on the overall quality of the monolayer films. The significance of this dissertation work is that a reproducible strategy for monolayer MoS2 film growth and quantification of areal coverage as well as the detrimental effects of processing on device performance is presented.
Investigating the Motivation-Cognition Interface: The Influence of Motivation on the Recognition Old/New Effect and Metamemory
Authors:   , Doshier Kirby
Published: January 2025

The purpose of this study was to thoroughly review previous work and to create a new experimental paradigm combining recognition memory with value-based incentives and metacognitive confidence judgments, which may provide convergent evidence for the motivation-cognition interface. This paradigm involves a game-like task administering global and local motivational incentives. Furthermore, trial-level metacognitive confidence ratings were gathered to understand the relationship of metacognitive accuracy and value as a function of strategic control of attention and memory and incentive-based motivation. Paired samples t-tests and a repeated measures ANOVA were used to identify differences in recognition performance based on reward incentive, and Goodman-Kruskall gamma correlations between performance confidence estimates were used to measure metacognitive accuracy. The results showed the mean number of recognition hits (correctly remembering previously seen items) were indeed greater for high-value items compared to low-value items. I also report an unanticipated effect of block, such that the hit rate increased for low valued items from Block 1 to Block 2. Unfortunately, I did not find meaningful results for the metacognitive judgments. This study lays important groundwork for subsequent research incorporating physiological testing to provide a much-needed link between mind and brain with respect to motivation and cognition. Moreover, this study provides important evidence about limitations within the current design and of remote experimental testing broadly.
Role of DEFECTIVE IN SYSTEMIC DEFENSE INDUCED BY ABIETANE DITERPENOID 1 (DSA1), a Putative O-Fucosyltransferase, in Plant Systemic Acquired Resistance (SAR)
Authors:   , Mohanty Devasantosh
Published: January 2025

Dehydroabietinal (DA), an abietane diterpenoid, was previously demonstrated to be a potent activator of systemic acquired resistance (SAR). DA also promotes flowering time in Arabidopsis thaliana by repressing expression of the flowering repressor FLOWERING LOCUS C (FLC) while simultaneously upregulating expression of FLOWERING LOCUS D (FLD), FLOWERING LOCUS VE (FVE) and RELATIVE OF EARLY FLOWERING 6 (REF6), a set of flowering time promoters. To further understand the mechanism underlying signaling by abietane diterpenoids, Arabidopsis mutants exhibiting reduced responsiveness to abietane diterpenoids were identified. One such mutant plant, ems2/7, exhibited SAR-deficiency and delayed flowering, which were found to be associated with two independent, but linked loci. The gene responsible for the SAR defect in ems2/7 was identified as DEFECTIVE IN SYSTEMIC DEFENSE INDUCED BY ABIETANE DITERPENOID 1 (DSA1). Similar to the missense mutant dsa1-1 identified in the mutant screen, the T-DNA insertion bearing null allele dsa1-2 exhibited SAR deficiency that could be complemented by a genomic copy of DSA1. The gene responsible for the delayed flowering phenotype of ems2/7 remains to be identified. DSA1 encodes a protein that is homologous to human protein O-fucosyltransferase 2. DSA1 is required for long-distance transport of the SAR signal. It is hypothesized that DSA1 is involved in the O-fucosylation-facilitated channeling through the ER/Golgi network of a protein involved in long distance SAR signaling. In a yeast two-hybrid screen, all the DSA1-interacting proteins identified are chloroplast-localized proteins, thus raising the interesting possibility of ER interaction with chloroplast and its potential role in SAR signaling.
Wear, Friction and High Shear Strain Deformation of Metallic Glasses
Authors:   , Pole Mayur
Published: January 2025

In this work, wear and scratch behavior of four different bulk metallic glasses (BMGs) namely Zr41.2Cu12.5Ni10Ti13.8Be22.5 (LM 1), Zr57Cu15.4Ni12.6Al10Nb5 (LM 106), Ni60Pd20P17B3 (Ni-BMG), and Pt57.5Cu14.7Ni5.3P22.5 (Pt-BMG) were compared. Shear band formation on the edges of the scratch groove with spallation was found to be the primary failure mechanism in progressive scratch tests. The wear behavior and the scratch response of model binary Ni-P metallic glasses was systematically studied as a function of composition, with amorphous alloy formation over the narrow range of 10 at% to 20 at% phosphorus. Pulsed current electrodeposition was used to obtain these binary amorphous alloys, which offers a facile and versatile alternative to conventional melt quenching route. The electrodeposited metallic glasses (EMGs) showed hardness values in the range of 6.6-7.4 GPa, modulus in the range of 155-163 GPa, and friction coefficient around 0.50. Among the studied alloys, electrodeposited Ni80P20 showed the lowest wear rate. The wear mechanism was determined to be extensive plastic deformation along with mild ploughing, micro tears, and formation of discontinuous lubricious oxide patches. The effect of phosphorus content on the structure, mechanical properties, and the tribological response was systematically investigated for biocompatible Co-P metallic glasses. With increase in phosphorus content, there was an increase in hardness, hardness/modulus, wear resistance, and scratch resistance following the trend: Co80P20 > Co90P10 > Pure Co. The Co-P electrodeposited amorphous alloys showed enhanced wear resistance that was two orders of magnitude better than SS 316 and Ti-based alloys in simulated physiological environment. The wear mechanisms were determined to be a combination of abrasive and surface fatigue wear in both dry and physiological environments. Decreased platelet adhesion and more extracellular matrix deposition indicated that Co80P20 electrodeposited alloy had excellent blood compatibility and pre-osteoblast adhesion response. These results suggest the potential use of Co-P metallic glasses as superior bio implant materials with better durability compared to the state-of-the-art.
The Intersection of Race and Space in Urban Environments Confronting Development: The Black Church and Harlem's Gentrification
Authors:   , McDonald Autumn Dawn
Published: January 2025

Roughly 1 million Blacks fled from the South to cities in the North, and with this shift New York City saw a 66% increase in its Black population between 1910 and 1920. By the end of the 1920s Harlem had become home to approximately 200,000 Black residents. But during the period 2000 to 2016 three of the nation's top ten gentrifying zip codes could be found in Harlem, and Harlem's Black population decreased by 23,166 residents, while Harlem's white population increased by 33,442 during this era. Similar to Harlem having played a pivotal role in Black culture throughout the United States, the Black church has been a pillar and resource in the Black community. In sustaining its congregants, the Black church has played a critical role in Black liberation. But despite the potential that Black churches may hold, many are experiencing declining attendance and presence. This study aims to examine the racially nuanced dynamics of Harlem's spaces confronting gentrification by looking at the interrelated dynamics of gentrification and the Black church. Data was collected via participant observation and semi-structured interviews in Harlem. The research elucidates findings regarding Harlem's gentrification, the Black church in Harlem, tactics for survival of the Black church amid gentrification, and how the Black church may play a role in combating the state-sanctioned violence of gentrification.
Nanolithographic Approaches to Probing Cell Membrane Modulation
Authors:   , Mathis Katelyn
Published: January 2025

Metastatic cancer is more dangerous and difficult to treat than pre-metastatic cancer. Ninety percent of cancer-related deaths are caused by metastatic cancer. When cells go through metastases, they go through changes that allow them to break away from the primary tumor and invade secondary tissues. These changes, in lipid membrane composition and cellular glycocalyx, make the cell more resistant to therapeutics. Actin cytoskeleton contractility plays a major role in these changes, as increased contractility has been linked to upregulation of phosphoinositides and production of glycoproteins. Light induced molecular adsorption of proteins (LIMAP) was used to control the actin arrangement and cell shape in order to mimic and study metastatic cells. Negatively charged proteins electrostatically adhere to the surface in order to create patterns for the cells to stick. Neutravidin was conjugated to poly(glutamic acid) to improve attachment to the surface. We observed differences in cell shape and phosphoinositide behavior based on LIMAP patterning. Additionally, expression of key glycoproteins related to cancer metastasis increased with increased actin contractility. The actin cytoskeleton was the main driver of changes to the cell membrane and glycocalyx.
An Examination of the Multicultural Representation in Children's Books from Approved Literature Lists in North Texas Public Schools: A Critical Content Analysis
Authors:   , Edge Andrea Felice
Published: January 2025

Current events and social movements aimed at bringing awareness to oppressed groups have reminded us that the United States has still not achieved justice and equality for all. Social and political tensions have become inescapable in our increasingly connected world. Therefore, students need to learn about diverse ways of knowing and being in a pluralistic society. Since publishing and education companies compete for business, the amount of digital and print resources available to teachers can be overwhelming. Because a vital component of a multicultural education includes diverse materials that authentically portray views and experiences from a wide range of cultures, traditions, and values, it is necessary to critically analyze the curricular content that teachers are expected to use in their classrooms. The purpose of this study is to analyze the literature that is included in district-approved book lists for public schools to determine how these texts support the principles of multiculturalism and multicultural education in sixth-grade classrooms. The tenets of critical multicultural analysis (CMA) guided this critical content analysis. Because teachers in these districts are limited to choosing books from approved lists to read with their students, the texts for this study were selected from approved literature lists that were provided by three public schools in North Texas. Although previous research on curricula and textbook analysis is available, little of that research analyzes approved literature lists in public schools. Since school districts are preparing to teach changing demographics and are striving to become more equitable, this study can offer insight into how the chosen texts align with broader district goals for meeting the academic, social, and emotional needs of each student.
Notch Filter Design for Power Line Interference Artifact Reduction of ECG Signal and Feature Extraction in LabVIEW
Authors:   , Kasidi Divyasri
Published: January 2025

Electrocardiogram (ECG) is a biological signal that represents the heart's electrical activity. Interference from power lines introduces a frequency component of 50 to 60 Hz into the signal, which is the principal cause of ECG corruption. By using the Cadence Virtuoso Spectre circuit simulator and typical TSMC RF 180 nm CMOS technology, a notch filter was created to reduce powerline interference. The advantage of utilizing a notch filter for PLI is that noise at 60 Hz is completely eliminated without sacrificing any important information. Additionally, this study contains a MATLAB-based model for, which is used to compute the power spectral density for the obtained time-domain signal. By incorporating power spectral density into data gathering procedures, it is feasible to enhance data collection methodologies, construct models that appropriately account for observed power and aid in the removal of undesired components. NI LabVIEW is used to extract features. The advantage of ECG feature extraction is that it provides information that assists in the identification of cardiac rhythm issues, and gives information about the occurrence of heart attack. In this study, several patient data sets are utilized to extract characteristics and provide information regarding heart condition abnormalities.
Empirical Correlates of the Personality Assessment Inventory (PAI) in an Outpatient Sample: A Replication and Extension
Authors:   , Pan Minqi
Published: January 2025

The Personality Assessment Inventory (PAI) has gained widespread favor since its publication. However, validation studies of its interpretive descriptors remained limited to date. As such, the primary goal of the current study aimed at validating the interpretive descriptors through the lens of empirical correlates using the PDSQ as the external criterion. It also served as a replication and extension to the 2018 study conducted by Rogers and colleagues. The final archival sample included 204 clients from the UNT Psychology Clinic who were administered PAI between May 2016 and December 2020. Overall, reliability and construct validity were strongly supported for PAI clinical scales. Further, the current study replicated large majority of the correlates identified by Rogers and colleagues, which boosted the confidence in reproducible interpretations based on empirical correlates. Importantly, investigation of item-level and gendered correlates provided crucial interpretive implications that were otherwise obscured. For example, item-level correlates refined interpretation by clarifying the nature of scale-level correlates, particularly those of moderate strength. On the other hand, notable gender differences were identified for certain scales, which led to drastic differences in patterns of gendered vs. non-gendered correlates. Finally, several important methodological considerations are proposed in hope to facilitate the empirical research concerning measurement validity, as well as combat the current replication crisis. The need to adopt more stringent standards for effect size, as well as the instability of correlates of moderate strength were discussed. Implications of clinical practice and future directions for research are also discussed.
Does Experiencing Discrimination in the Workplace Change Opinion? A Mediation Analysis of Identity and Support for Affirmative Action
Authors:   , Jefferies Shanae S
Published: January 2025

Affirmative action policies have been a popular topic in U.S. media since their inception in the Civil Rights Act 1964. Previous studies note that race, gender, and political identity are known influencers of support for affirmative action policies; however, this dissertation analyzes the mediating effects of perceived experiences of discrimination in the workplace on a person's level of support for the preferential hiring and promotion of Black Americans based on the intersection of the race, gender, and political identity. Through social dominance theory (SDT), this dissertation highlights the motivations people may have in support or opposition of affirmative action, especially for Black Americans. Due to the historical lineage of African Americans in the U.S., stereotypes about Black people's work ethic have continued to be mostly negative-which inform hiring, promotion, and admission procedures today. Using the General Social Survey (GSS) to conduct regression and mediation analysis, this dissertation found significant support for mediation of perceived experiences to increase support for affirmative action among white females, and Black people regardless of gender or political identity. While race and gender discrimination were thought to be the most influencing forms of discrimination experienced, age discrimination showed to transcend racial, gender, and political barriers. Accordingly, appealing to experiences of age discrimination may be a helpful approach to closing the implementation gap of those who voice support for equality yet constantly vote in support of inequality.
The Influence of the Consolidated Appropriations Act of 2012 on Pell Grants in Baccalaureate Degree-Granting Institutions
Authors:   , Firmin Tara
Published: January 2025

The Consolidated Appropriations Act of 2012 (CAA) was an omnibus spending bill that changed Pell grant funding in response to a budgetary shortfall after a four-year investment in student financial aid. The CAA occurred at a time of state disinvestment coupled with increasing tuition and fees. Through the lens of resource dependence and academic capitalism as a conceptual framework, I used panel data in an ordinary least squares (OLS) regression to explore the impact of the CAA on Pell grant revenues. I included an interaction term to specifically address the impact of the CAA on public regional universities (PRUs) versus other institutions. Results indicated that the interaction effect between CAA and PRU was jointly significant. The average Pell award per student at PRUs was $13 less than other institutions before the implementation of the CAA. The average Pell award per student at PRUs increased after the implementation of the CAA; however, the average Pell award per student at PRUs was still $20 less than other institutions. Results indicated that the percentage of students receiving Pell awards was a significant and positive predictor of an average Pell award. Interestingly, institutions designated as minority-serving institutions (MSIs) were also significant and positive predictors of an average Pell award. Admission rate was a significant and negative predictor of an average Pell award but offered little practical meaning. The results highlighted the ongoing fiscal disparities between PRUs and other institutions, particularly as a growing number of MSIs educate students who rely on Pell grants to attend college.
The United States Occupation of Mexico City, 1847-1848
Authors:   , Onyon David E
Published: January 2025

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 in an effort to win the acceptance of the Mexican people. The success of his campaign depended on his army's ability to win battles while keeping Mexican civilian losses as low as possible. Scott devised a sophisticated pacification plan that was ahead of its time. This effort, together with his willingness to suspend operations after major battles to provide an opportunity for peace talks, reflected Scott's strategy. His goal was to end the war, not subjugate the Mexican people.
Introducing Technical Skills through Russian Piano Repertoire from the Elementary to Advanced Level
Authors:   , Kim Su Hyun
Published: January 2025

Piano teachers tend to approach pedagogy by treating technical studies and repertoire as separate parts of the curriculum, often using etudes by Charles-Louis Hanon, Josef Pischna, and Carl Czerny to build the student's technique. Yet, although these methods are popular, pedagogues disagree about their value. In any case, many pieces suitable for intermediate pianists integrate technique and musicality, such as Friedrich Burgmüller's 25 Etudes, Op. 100, Muzio Clementi's Preludes and Exercises, Op. 43, and Ignaz Moscheles's 24 Etudes, Op. 70. Although these exercises can indeed build technique through intermediate-level recital pieces, many similar piano works from the Russian school are rarely used, and yet they could better serve students who will eventually move on to the advanced Russian piano repertoire. This paper provides a pedagogical guide for introducing technical skills through various levels of the Russian piano repertoire. The guide focuses on technique in the context of musical expression, especially tone production, wrist motion, and finger technique, progressing systematically through elementary, intermediate, and advanced Russian piano pieces, composed in a Romantic style—both elegant and rich with melody and expression. The repertoire used as examples should develop the finger technique as well as the musicality of the student. The examples come from nineteenth-century Russian Piano School composers such as Reinhold Glière, Alexander Goedicke, Samuel Maykapar, Semyon Barmotin, and Anton Arensky.
(Those Were the) Good Times: The Disco Experience in Four Parts
Authors:   , Barber Zacharie
Published: January 2025

On the one hand, using a traditional narrative approach, this dissertation examines disco's historical trajectory from an underground movement to a mainstream phenomenon, and analyzes its relationships to American cultural and racial tensions during the 1970s and 1980s. On the other hand, this dissertation also departs from traditional historical approaches by emphasizing an archive of personal experiences, memories, and reflections produced over the last four decades by individuals, living and dead, whose creative expressions help give disco its definition. Each chapter is organized around the story of an individual DJ whose work and play reflected the broader disco landscape. Together, the anecdotal experiences of these DJs help to conjure a collective biography of disco, emphasizing the significance of disco not only as a "genre" of pop music, but as a larger reference point for shared, and sometimes contested, cultural experiences.
Small-Scale Dual Path Network for Image Classification and Machine Learning Applications to Color Quantization
Authors:   , Murrell Ethan Davis
Published: January 2025

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.
Emotion Recognition Using EEG Signals
Authors:   , Choudhary Sairaj Mahesh
Published: January 2025

Emotions have significant importance in human life in learning, decision-making, daily interaction, and perception of the surrounding environment. Hence, it has become very essential to detect and recognize a person's emotional states and to build a connection between humans and computers. This process is called brain-computer interaction (BCI) and is a vast field of research in neuroscience. Hence, in the past few years, emotion recognition has gained adequate attention in the research community. In this thesis, an emotion recognition system is designed and analyzed using EEG signals. Several existing feature extraction techniques are studied, analyzed, and implemented to extract features from the EEG signals. An SVM classifier is used to classify the features into various emotional states. Four emotional states are detected, namely, happy, sad, anger, and relaxed state. The model is tested, and simulation results are presented with an interpretation. Furthermore, this study has mentioned and discussed the efficacy of the results achieved. The findings from this study could be beneficial in developing emotion-sensitive technologies, such as augmented modes of communication for severely disabled individuals who are unable to communicate their feelings directly.
Artificial Intelligence at Home: Alexa, Are You Influencing My Family?
Authors:   , Ra'oof Jameelah
Published: January 2025

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.
Collegiate Student-Athletes' Psychological Distress and Counseling Use during COVID-19
Authors:   , Slavin Lindsey Eve
Published: January 2025

The onset of COVID-19 and cancellation of collegiate sports may have exacerbated student-athletes' psychological distress. Within a national sample of collegiate student-athletes (N = 5755; 66.7% women; 72.3% White), I determined how gender, race, and sport season related to rates of depression, stress, and counseling use. I used a cross-sectional methodology and collected data in April/May 2020. Overall, 26.5% (n = 1526) and 10.6% (n = 612) of the collegiate student-athletes endorsed clinical and high levels for depression and stress, respectively; 25.1% (n = 1443) and 69.7% (n = 4014) reported subclinical and moderate levels of depression and stress, respectively. Few student-athletes reported counseling use before (17.1%) or after (2.3%) the onset of COVID-19; those who reportedly used services endorsed higher levels of depression and stress than those who did not. Female student-athletes reported higher rates of depression, stress, and counseling use than male student-athletes. There were no race or sport season effects. Student-athletes who competed in spring sports endorsed higher levels of counseling use than student-athletes who participated in a fall season sport. Athletic departments must address their student-athletes' psychological distress by facilitating a higher use of mental health services.
A Comprehensive Remedial and Enhancing Cello Method for Professors and Undergraduate Students: Conformation-Based Theoretical Methodology and Sequential Practical Solutions
Authors:   , Totan Dan Iuliu Mircea
Published: January 2025

Undergraduate cellists from diverse pedagogical backgrounds with various levels of technical proficiency often struggle to adapt to the demanding performance standards of the university environment. Frequently, these challenges are caused by technical concepts that have been incorrectly learned or unaddressed in the cellist's previous educational experience. Designed for university cello professors and undergraduate cello students, this study is a remedial and enhancement technical method for developing efficient performance habits; it presents a synthesis of cello performing ideologies, comprehensive technical analysis, physical conformation solutions, original sequential exercises, practice models, and recommendations for supporting literature. The method provides a structured path to expressive mastery and artistic freedom in performing advanced cello repertoire.
Porphyrin and BODIPY Derived Donor-Acceptor Multi-Modular Systems: Synthesis, and Excited State Energy and Electron Transfer Studies
Authors:   , Benitz Alejandro Daniel
Published: January 2025

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 moderately stable binding. Spectral and electrochemical studies of the dyads used to generate energy level diagrams indicated that PET was thermodynamically unfavorable in BDP(Im)2:ZnP but favorable when the zinc tetrapyrrole is selectively excited dyads—as confirmed in femtosecond transient absorption studies. In the third work, two novel tetrads, consisting of charge stabilizing triphenylamine (TPA) to either bithiophene (BT) or terthiophene (TT) via a covalent linker that is attached to the meso-position of a BODIPY. This BODIPY was further extended by linking it to fulleropyrrolidine via a catechol linker to a modified BODIPY. Computational studies revealed the electronic structures of the tetrads, which rendered the HOMO to be on TPA-BT/TPA-TT moiety, while the HOMO-1 to be on the BODIPY entity and the LUMO to localized to the fulleropyrrolidine. Coupling the results with the electrochemistry, deduced that there is the formation of (TPA-TT).+-BODIPY-C60.- and (TPA-BT).+-BODIPY-C60.- as charge-separated states after the selective excitation of BODIPY in the tetrads. Femtosecond transient absorption studies were conducted in non-polar toluene and polar benzonitrile, and results affirmed photoinduced charge separation in the tetrads.
On the Precipice: Examining Generic Convention and Innovation in Thermidorian Opera through "Sapho" (1794)
Authors:   , Wodny Anna
Published: January 2025

Often neglected in the musicological coverage of revolutionary music and theater, the Thermidorean Reaction phase (1794–1795) of the French Revolution was a period of governmental transition, in which Parisian theaters enjoyed the institutional and generic freedoms of the Le Chapelier Laws of 1791 in addition to relaxed enforcement of censorship. In recent years, Mark Darlow and Julia Doe's work has advanced understandings of operatic genres during the early years of the Revolution, which they characterize as a balance between "rupture and continuity" with artistic conventions of the ancien régime. I extend their methods of analysis to the second half of the revolutionary decade, exploring the impact that Thermidorian theatrical politics and legal (de)regulations had on operatic genre through the lens of Sapho (1794). This tragédie lyrique premiered at the Théatre de Louvois, a venue of ambiguous status within Paris's theatrical hierarchies. Featuring a libretto by Constance de Salm and music by Jean-Paul-Égide Martini, Sapho falls within the period of temporarily suspended theatrical privilege initiated by Le Chapelier and borrows key formal elements from "great" and popular operatic styles. The opera facilitates a discussion of how composers and librettists collaborated to navigate the rapidly shifting political and legal climate of Thermidor. I argue that Sapho's careful blend of generic consistency and innovation arose from its twofold institutional and aesthetic positioning. Institutionally, it premiered within a period of relaxed theatrical regulations at a theater, the Louvois, that avoids clear categorization. Aesthetically, Sapho represents a culmination of generic developments initiated in the 1750s, with innovative musical and formal elements stemming from the authors' attention to dramatic progression and their desire to remain artistically relevant in the wake of the Terror.
Deposition and Characterization of Thin Metal Oxide Heterostructures for Electronic and Magnetic Device Applications
Authors:   , Ladewig Chad Samuel
Published: January 2025

The first study investigated the deposition and characterization of the CoO and Co3O4 phases of cobalt oxide. It was determined that both phases can be easily distinguishable by XPS, LEED and EELS and grown by only altering the oxygen partial pressure during MBE deposition. This fundamental knowledge gives a foundation for further experiments involving graphene growth on cobalt oxides. The second study focused on the layer-by-layer growth of graphene on another metal oxide, MgO. Past research gives promise of favorable interfacial interactions at the graphene/MgO interface though the exact growth mechanism is unknown. Layer by layer growth by MBE resulted in the characterization of a complex graphene oxide/buckled graphene/ graphene heterostructure confirmed by XPS, AES, LEED and EELS and supported by DFT calculations performed by the project's collaborators at the California Institute of Technology. This detailed look into graphene growth give valuable information that can be allied to graphene growth on similar oxide surfaces. The last project deviates from graphene-based studies and instead focused on interfacial interactions between two metal oxides, chrome oxide and titanium oxide. A corundum phase TiO2-x film was grown on Al2O3 via MBE and characterized using XPS, AES, LEED, and EELS. Data taken gives evidence of the presence of a two-dimensional election gas at the TiO2-x surface because of oxygen vacancies present after deposition. Deposition of chrome in UHV results in the formation of an oxidized chrome overlayer by abstraction of oxygen from the TiO2-x underlayer increasing the number of vacancies present. MOKE measurements taken by the project's collaborators at the University of Nebraska-Lincoln indicate that there is an interfacial exchange bias at the interface of the two oxides, a favorable property for magnetic device applications.
Novel LC-MS Method for the Analysis of Beta-Hydroxybutyric Acid (BHB) in Health Formulations
Authors:   , Smith Garret Mackenzie
Published: January 2025

The rise of nutraceutical health formulations has increased the need for more stringent analytical testing methods. Complex matrices present a new problem when determining concentration of compounds of interest. The presented method uses LC-MS analysis with a novel sample preparation method in the determination of Beta-hydroxybutyric acid in health formulations. The use of an aqueous analytical column allows for separations of polar compounds after non-polar compounds are removed through C18 packed column filtration. The samples were analyzed through time-of-flight mass spectrometry and results show that this is an effective method for the presented samples with a range of expected concentrations of total BHB was from 11.80% to 38.92%. It was seen that all samples exhibited a less than 10% percent deviation from the expected concentrations of the nutraceutical health samples with the highest being 9.74 % for sample 9 and the lowest being sample 3 with a deviation of 0.08 % from expected values.