bluuebunny/crossref_metadata_2025 huggingface dataset:
The Nature of Cognitive Impairment in Multiple Sclerosis
Authors:   , Carlew Anne R.
Published: February 2025

Cognitive impairment is common in multiple sclerosis (MS), with as many as 70% of patients with MS affected. Individuals with MS who experience cognitive deficits are less likely to be employed, and may have more difficulty performing independent activities of daily living. Most commonly, deficits are observed in processing speed, complex attention, and memory. Because lesion location varies widely among individuals, no clear pattern of cognitive dysfunction in MS has emerged. However, a number of risk and protective factors may influence the likelihood of individuals to develop and/or express dysfunction, though the contribution of each to specific domains of cognition has not been fully explored. Recently, support for the cognitive reserve hypothesis (i.e., enriching life experiences protect against cognitive decline despite disease burden) has emerged in the MS literature. The current study investigated the contributions of cognitive reserve to learning and memory functioning in MS and the interaction of cognitive reserve variables and risk factors known to impact cognitive functioning in individuals with MS. Finding revealed cognitive reserve protects against decline in the domains of processing speed and complex attention. Furthermore, indirect protective effects of cognitive reserve through these domains were observed for verbal learning and memory. Finally, in line with previous literature, cognitive dysfunction predicted employment status of the current sample. Clinical implications and future directions for intervention efforts are discussed.
Current Trends in the Availability and Requirement of Learning Technology Courses for Pre-Service Educators at US Universities
Authors:   , West Tessa Renae
Published: February 2025

This multi-faceted research study examined the current approach of educational technology courses and how integrating modern learning technologies into curriculum effectively is addressed in pre-service education programs at U.S. universities. The primary goal was to explain the current trends in the reviewed pre-service programs in relation to how future educators are prepared by the universities to incorporate educational technology and use technology enhanced curriculum. This study was an exploratory, non-positivistic qualitative study that employed multi-strategy and survey research approaches in order to establish a baseline of the way that technology integration skills are being addressed in undergraduate pre-service educator programs today. Survey participants were educators within a public or private K-12 system in the U.S. The participants' level of education, university attended, educational technology experience, and technology perceptions were gathered from the survey's Likert-type and open-end questions. Current and historically statistics and data were collected for each university identified from the survey responses. Findings of this study revealed outcomes related to participants' education, perception of educational technology, and university educational technology course offerings and/or requirements for undergraduate pre-service educator programs. Results of this research study provide a solid foundation for future research in these areas within the field of education.
Perceived Impacts of a Study Abroad Experience on In-Service Teachers' Practices
Authors:   , Felts Mark T
Published: February 2025

This phenomenological multiple case study provides the details, reasoning, and discussion of the role of study abroad experience and its perceived impact(s) on three in-service teachers. Two research questions were posed: What are the perceived impacts on in-service teachers' practice of a study abroad program experience and how does the in-service teacher's perception of impact change over time within a teacher's career? Results of this study suggest that the teaching practice of in-service teachers who study abroad would benefit, especially in the area of intercultural competence, if this experience is structured in a way where the curriculum of the study abroad program aligns with the content of their future teaching assignment i.e. curricular bridging. Case evidence further suggests that long-term impact of a study abroad experience upon a teacher's practice is related to providing the future teacher an opportunity for to develop and maintain pedagogical relationships with students while abroad. The term ‘submersion' is introduced to help articulate depth of impact during a study abroad program experience.
Suicidality among Turkish Adolescents: Comparing Durkheim's and Tarde's Perspectives
Authors:   , Gurbuz Suheyl
Published: February 2025

Suicidality is an important problem among adolescents. This study compares Durkheim's and Tarde's perspectives on suicide. While the Durkheimian perspective alleges that integration, regulation, and anomie play the major role on adolescent suicidality, Tarde's theory considers imitation as the most important factor affecting suicidality. Durkheim suggests that individuals with higher integration and regulation are less likely to commit suicide. Individuals with less integration and regulation, on the other hand, are more likely to experience anomie and higher suicidality. Tarde claims that individuals with suicidal peers are more likely to commit suicide. In particular, the effects of school integration, family integration, peer integration, religious integration, neighborhood integration, family regulation, anomie, and suicide imitation on adolescent suicidality in Turkey are examined using binary logistics regression in the current attempt. The results indicate that school integration, family integration, and religious integration have significant negative effects on adolescents' suicidality whereas suicide imitation has a positive effect. The results of the study are expected to help to prevention programs purposed at reducing suicidality among adolescents.
Elsa Ludewig-Verdehr: American Clarinet Performer and Pedagogue
Authors:   , Daffinee Jennifer Mendez
Published: February 2025

Method books are a major means by which musicians study techniques and performance practices of the past. In addition to being practical tools for learning one's craft, these books serve as a historical reference into the minds of famous performers and teachers. Today's use of nineteenth century method books ensures the instructional lineages of famous clarinetists are carried forward. However, clarinet researchers and historians would be remiss if they did not also record and preserve the distinctive methods of the twentieth century's most effective performers and teachers. Elsa Ludewig-Verdehr is one such clarinetist who has established herself as a substantial twentieth century figure through (1) her performance record, (2) her students' performance and teaching record, and (3) her involvement in the international clarinet community. Review of current literature indicates four articles, five biographic dictionary entries, and one dissertation observation and interview about Dr. Verdehr's methods exist. These sources honor her, provide biographical information, and reference the tenets of her teaching philosophy; however, they do not discuss her detailed methodology or specific pedagogical exercises. Therefore, this text seeks to answer questions about Dr. Verdehr's teaching philosophy and clarinet method in order to record and preserve her life's work. This text provides transcription of over 150 handwritten exercises with primary source commentary. Interview explanations from Dr. Verdehr are combined with analysis of over thirty pages of handwritten material to assemble the first publication of The Verdehr Method: A Suggested Approach and Guide to Studying the Clarinet – Exercises for the Development of Tone, Technique, and Tonguing.
Physical Activity and Relationship Functioning: Mediation Roles of Sexual Satisfaction and Self-Esteem
Authors:   , Schumacher Matthew Robert
Published: February 2025

Little research has examined the role of physical activity in relationship functioning. Utilizing two heterosexual subsamples of 618 females and 155 males, results indicated that physical activity was positively correlated with sexual satisfaction and self-esteem for the female subsample, but was not significant for the male subsample. For both subsamples, although physical activity was not a significant unique predictor of relationship functioning in regression analyses, sexual satisfaction and self-esteem each significantly contributed the variance relationship functioning. The findings of this study increase our knowledge of mechanisms that impact sexual satisfaction, self-esteem, and physical activity among women, which in turn can potentially guide treatment planning and interventions.
The Hoboken War Bride: A Novel
Authors:   , Riccardelli Charlie Frank
Published: February 2025

The Hoboken War Bride is a work of historical fiction set in Hoboken, New Jersey during World War II. A young soldier named Daniel and an aspiring actress named Hildy marry days after meeting, though the marriage is doomed to fail. This young couple is not compatible. Daniel ships out to basic training the day after their hasty marriage, leaving Hildy behind with his family, the Anellos, who she quickly becomes attached to. Hildy is exposed to family in a way she had never lived with her own, embracing them even though she doubts she'll ever have a future with Daniel. When Daniel returns after the end of the war, the young couple try to make their marriage work, but it fails almost immediately. Both Hildy and Daniel struggle to pick themselves up after their divorce, finding themselves making choices they never thought they would when they were younger.
The Predictive Utility of Personality Facets in Examining Risk and Resiliency in Transient and Chronic Stress
Authors:   , Janis Beth M.
Published: February 2025

Chronic or prolonged stress has been shown to have deleterious impacts on mental health, physical health, and cognitive functioning. However, not all individuals show the negative effects of continued exposure to stress. Past research has identified personality as a contributor to resiliency, while also identifying it as an important predictor of negative outcomes, such as psychopathology. More recently, personality researchers have emphasized the importance of examining personality at the level of specific underlying facets, as it can provide a more refined and predictive picture than higher-order personality traits. The current study examined the predictive utility of personality facets in regard to risk and resiliency in high-achieving individuals exposed to transient and chronic stress. Results indicated personality facets provided strong prediction of mental health and behavioral functioning outcomes, and added to the understanding of the association among personality and functioning. In particular, hierarchical linear modeling analyses identified significant risk and protective facets prior to the inclusion of stress and also when interacting with stress. The implications of these analyses, such as identification of particular strategies for boosting protective facets and limiting harmful facets, is discussed.
Computational Methods to Optimize High-Consequence Variants of the Vehicle Routing Problem for Relief Networks in Humanitarian Logistics
Authors:   , Urbanovsky Joshua C.
Published: February 2025

Optimization of relief networks in humanitarian logistics often exemplifies the need for solutions that are feasible given a hard constraint on time. For instance, the distribution of medical countermeasures immediately following a biological disaster event must be completed within a short time-frame. When these supplies are not distributed within the maximum time allowed, the severity of the disaster is quickly exacerbated. Therefore emergency response plans that fail to facilitate the transportation of these supplies in the time allowed are simply not acceptable. As a result, all optimization solutions that fail to satisfy this criterion would be deemed infeasible. This creates a conflict with the priority optimization objective in most variants of the generic vehicle routing problem (VRP). Instead of efficiently maximizing usage of vehicle resources available to construct a feasible solution, these variants ordinarily prioritize the construction of a minimum cost set of vehicle routes. Research presented in this dissertation focuses on the design and analysis of efficient computational methods for optimizing high-consequence variants of the VRP for relief networks. The conflict between prioritizing the minimization of the number of vehicles required or the minimization of total travel time is demonstrated. The optimization of the time and capacity constraints in the context of minimizing the required vehicles are independently examined. An efficient meta-heuristic algorithm based on a continuous spatial partitioning scheme is presented for constructing a minimized set of vehicle routes in practical instances of the VRP that include critically high-cost penalties. Multiple optimization priority strategies that extend this algorithm are examined and compared in a large-scale bio-emergency case study. The algorithms designed from this research are implemented and integrated into an existing computational framework that is currently used by public health officials. These computational tools enhance an emergency response planner's ability to derive a set of vehicle routes specifically optimized for the delivery of resources to dispensing facilities in the event of a bio-emergency.
Dataflow Processing in Memory Achieves Significant Energy Efficiency
Authors:   , Shelor Charles F.
Published: February 2025

The large difference between processor CPU cycle time and memory access time, often referred to as the memory wall, severely limits the performance of streaming applications. Some data centers have shown servers being idle three out of four clocks. High performance instruction sequenced systems are not energy efficient. The execute stage of even simple pipeline processors only use 9% of the pipeline's total energy. A hybrid dataflow system within a memory module is shown to have 7.2 times the performance with 368 times better energy efficiency than an Intel Xeon server processor on the analyzed benchmarks. The dataflow implementation exploits the inherent parallelism and pipelining of the application to improve performance without the overhead functions of caching, instruction fetch, instruction decode, instruction scheduling, reorder buffers, and speculative execution used by high performance out-of-order processors. Coarse grain reconfigurable logic in an energy efficient silicon process provides flexibility to implement multiple algorithms in a low energy solution. Integrating the logic within a 3D stacked memory module provides lower latency and higher bandwidth access to memory while operating independently from the host system processor.
Heat Transfer in Low Dimensional Materials Characterized by Micro/Nanoscae Thermometry
Authors:   , Jeong Jae Young
Published: February 2025

In this study, the thermal properties of low dimensional materials such as graphene and boron nitride nanotube were investigated. As one of important heat transfer characteristics, interfacial thermal resistance (ITR) between graphene and Cu film was estimated by both experiment and simulation. In order to characterize ITR, the micropipette sensing technique was utilized to measure the temperature profile of suspended and supported graphene on Cu substrate that is subjected to continuous wave laser as a point source heating. By measuring the temperature of suspended graphene, the intrinsic thermal conductivity of suspended graphene was measured and it was used for estimating interfacial thermal resistance between graphene and Cu film. For simulation, a finite element method and a multiparameter fitting technique were employed to find the best fitting parameters. A temperature profile on a supported graphene on Cu was extracted by a finite element method using COMSOL Multiphysics. Then, a multiparameter fitting method using MATLAB software was used to find the best fitting parameters and ITR by comparing experimentally measured temperature profile with simulation one. In order to understand thermal transport between graphene and Cu substrate with different interface distances, the phonon density of states at the interface between graphene and Cu substrate was calculated by MD simulation.As another low dimensional material for thermal management applications, the thermal conductivity of BNNT was measured by nanoscale thermometry. For this work, a noble technique combining a focused ion beam (FIB) and nanomanipulator was employed to pick and to place a single BNNT on the desired location. The FIB technology was used to make nanoheater patterns (so called nanothermometer) on a prefabricated microelectrode device by conventional photolithography processes. With this noble technique and the nanoheater thermometry, the thermal conductivity of BNNT was successfully characterized by temperature gradient and heat flow measurements through BNNT.
Drug-Related Violence and Party Behavior: The Case of Candidate Selection in Mexico
Authors:   , Pulido Gomez Amalia
Published: February 2025

This dissertation examines how parties respond and adapt their behavior to political violence. Building a theoretical argument about strategic party behavior and party capture, I address the following questions: How do parties select and recruit their candidates in regions with high levels of violence and the pervasive presence of VNAs? Do parties respond to violence by selecting certain types of candidates who are more capable of fighting these organizations? Do parties react differently at different levels of government? And finally, how do VNSAs capture political selection across at different levels of government? I argue that in regions where there is high "uncertainty," candidate selection becomes highly important for both party leaders and DTOs. Second, I argue that as violence increases and the number of DTOs also, criminal organizations, as risk-averse actors, will capture candidate selection. I posit that as violence increases, there is a greater likelihood that candidates will have criminal connections. To test my theory, I use the case of Mexico. Violence in Mexico and the presence of criminal organizations across the country has experienced a great deal of variation since the 1990s. In Chapter 2, I find that violence affects the gubernatorial candidate selection of the PRI, PAN and PRD. In high violence states, parties select gubernatorial candidates with long experience in subnational politics compared to other types of experiences. In chapter 3, however, I find that at the municipal level not all the parties respond equally to violence. As a municipality becomes more violent, the PRI and PAN party leaders are more likely to select mayoral candidates who were either state or federal deputies or candidates who were both. In contrast, the PRD is likely to recruit state deputies as a function of violence, but not national deputies or candidates who were deputies at both the state and federal level. Interestingly, I find that as the municipality becomes more violent, party leaders are less likely to recruit inexperienced candidates. This result suggests that parties do indeed respond to levels of violence. Finally, in Chapter 5, I show that criminal organizations capture candidate selection to reduce uncertainty. As utility-maximizing actors, DTOs seek to influence the selection of candidates as a function of violence. At the state level, criminal organizations are more likely to capture candidate selection in states with the presence of multiple DTOs. Party capture is more likely to happen in states where more than one DTO are fighting to control the turf. I show that criminal organizations at the state level equally capture all parties. This finding reveals that DTOs are diversifying their political connections. While under the dominant party regime, they colluded with PRI officials, under the new political Mexican democratic configuration, DTOs are establishing other political relationships with different political parties.
An Examination of the Language of Psychopaths: Differences in Prosodic Channels of Communication in Psychopathic and Non-Psychopathic Offenders
Authors:   , Walsh Hannah C
Published: February 2025

Natural speech contains a wealth of information relevant to understanding cognitive and affective psychological processes, which are reflected in both prosodic and semantic channels of communication. While differences in semantic channels have been demonstrated among psychopathic versus non-psychopathic individuals, research on the role of prosody in psychopathy is scant. The Computerized Assessment of Natural Speech protocol provides adetailed assessment of macroscopic-level prosody variables related to underlying psychological processes that have been linked to psychopathological conditions. Psychopathy is a condition that involves a number of disruptions in cognitive and affective processes, which theoretically can be tied to various aspects of speech. The present study provides a novel contribution by examining natural speech output in an offender sample in the context of a clinical interview (Psychopathy Checklist – Revised). More specifically, the present study examined variance in prosody across segments of the PCL-R interview designed to elicit both positively and negatively valenced emotional content, across high and low levels of subjective arousal, in psychopathic (n = 49) and non-psychopathic (n = 44) male offenders who were similar in terms of age, education, race/ethnicity, and IQ. Three-factor mixed MANOVAs (Group x Valence x Arousal) were conducted to evaluate differences in prosodic speech displayed by the offenders. Results indicated significant interactions between psychopathic and non-psychopathic offenders across valence and arousal conditions in terms of percentage of silence, average pause length, longest pause length, average within-utterance variation in subjectively defined pitch and articulation variables, and average rate of change in articulation across speech sample. Implications and future directions for research are discussed.
Tonal Enigmas: A Study of Problematic Openings and Endings
Authors:   , Yun Xiao
Published: February 2025

When talking about tonal music, we sometimes tend to take for granted the idea that the tonic should always be clearly established either at the beginning or the end. However, there are composers who sometimes deviate from the normal path by creating different types of riddles or tonal enigmas in their works. Some of these riddles can be solved later on as the piece progresses; yet others may need to bexplained with the help of some external references. This thesis examines three such examples, each of which poses its unique enigma. The second movement of Bruckner's Symphony No. 1 presents a dualism between Ab and F (paralleled by their dominants Eb and C); Brahms's Alto Rhapsody involves an enormous auxiliary cadence spanning 2/3 of the piece and a seemingly plagal cadence which turns out to be authentic with the V suppressed; and eventually, Grieg's setting of Dereinst, dereinst, Gedanke mein provides a paradoxical ending which may be understood as incorporating the composer's attitude towards the text.
Elementary Teacher Candidate Perceptions of Hip-Hop Pedagogy in the Mathematics Classroom
Authors:   , Cason Marti B.
Published: February 2025

This dissertation examines elementary teacher candidates' perceptions of hip-hop culture and utilizing hip-hop pedagogy in a mathematics classroom. This study demonstrates how elements of hip-hop may be integrated into an elementary mathematics methods course to develop pedagogical knowledge that challenges teacher candidates to explore the benefits of utilizing hip-hop as a tool in the classroom. This study contributes to the growing body of research that investigates the use of hip-hop pedagogy in educator preparatory programs. Participants in this study were teacher candidates at a large university in Texas enrolled in the final year of their educator preparatory program. This research shows that as a result of integrating hip-hop pedagogy in the mathematics methods course, teacher candidates had increased knowledge and more positive perceptions of hip-hop culture, and they demonstrated a greater willingness to integrate hip-hop pedagogy in their future classrooms.
Optoelectronically Active Metal-Inorganic Frameworks and Supramolecular Extended Solids
Authors:   , Ivy Joshua F.
Published: February 2025

Metal-organic frameworks (MOFs) have been intensely researched over the past 20 years. In this dissertation, metal-inorganic frameworks (MIFs), a new class of porous and nonporous materials using inorganic complexes as linkers, in lieu of traditional organic linkers in MOFs is reported. Besides novel MIF regimes, the previously described fluorous MOF "FMOF-1", is re-categorized herein as "F-MIF1". F-MIF-1 is comprised of [Ag4Tz6]2- (Tz = 3,5-bis-trifluoromethyl-1,2,4-triazolate) inorganic clusters connected by 3-coordinate Ag+ metal centers. Chapter 2 describes isosteric heat of adsorption studies of F-MIF1 for CO2 at near ambient temperatures, suggesting promise for carbon capture and storage. We then successfully exchanged some of these Ag(I) centers with Au(I) to form an isostructural Au/F-MIF1. Other, nonporous MIFs have been synthesized using Ag2Tz2 clusters with bridging diamine linkers 4,4'-bipyridine, pyrazine, and a Pt(II) complex containing two oppositely-situated non-coordinating pyridines. This strategy attained luminescent products better-positioned for photonic devices than porous materials due to greater exciton density. Chapter 3 overviews work using an entirely inorganic luminescent complex, [Pt2(P2O5)4]4- (a.k.a. "PtPOP") to form new carbon-free MIFs. PtPOP is highly luminescent in solution, but as a solid shows poor quantum yield (QY ~0.02) and poor stability under ambient conditions. By complexing PtPOP to various metals, we have shown a dramatic enhancement in its solid-state luminescence (by an order of magnitude) and stability (from day to year scale). One embodiment (MIF-1) demonstrates microporous character. Chapter 4 overviews the design and application of new MIF linkers. Pt complexes based upon (pyridyl)azolates, functionalized with carboxylic acid groups, have been synthesized. These complexes, and their esterized precursors, show strong luminescence on their own. They have been used to generate new luminescent MIFs. Such new MIFs may be useful toward future inorganic (LEDs) or organic (OLEDs) light-emitting diodes, respectively. The electronic communication along their infinite coordination structures is desirable for color tuning and enhanced conductivity functions, compared to the small molecules used in such technologies, which rely on intermolecular interactions for these functions.
Ultrasonic Processing of Aluminum 2139 and 7050
Authors:   , Reed Jordan Derek
Published: February 2025

Acoustics is the study of all sound waves, with ultrasound classified as those frequencies above 20,000 Hz. Currently, ultrasound is being used in many industries for a variety of purposes such as ultrasonic imaging, ultrasonic assisted friction stir welding, and ultrasonic spot welding. Despite these uses, the effects of ultrasound on phase stability and resultant mechanical properties has been minimally analyzed. Here we study the impact waves play in ultrasonic welding and design an apparatus to maximize waves entering aluminum alloy samples. Aluminum 2139 and 7050 are used because they are precipitation strengthened by metastable phases so temperature change, and the corresponding phase stability, can greatly impact their strength. Results suggest that the ultrasonic welder primarily imposes a localized temperature spike due to friction, averaging over 200°C in a few seconds, which generally lowers the Vickers hardness due to coarsening or even dissolution of strengthening precipitates. Conversely, the new design increases the Vickers hardness by up to 30% over the initial hardness of approximately 63HV for aluminum 2139 and 83HV for aluminum 7050, respectively, while only increasing the temperature by an average of approximately 10°C. This new design was unable to achieve peak hardness, but the strengthening it achieved in two minutes was equivalent to one month of natural aging. If this system was able to be fine-tuned, it could serve as a quick strengthening process for recently weakened aluminum alloys, such as after friction stir welding.
Nanophotonics of Plasmonic and Two-Dimensional Metamaterials
Authors:   , Roccapriore Kevin M
Published: February 2025

Various nanostructured materials display unique and interesting optical properties. Specific nanoscale objects discussed in an experimental perspective in this dissertation include optical metamaterials, surface plasmon sensors, and two-dimensional materials. These nanoscale objects were fabricated, investigated optically, and their applications are assessed. First, one-dimensional magnetic gratings were studied, followed by their two-dimensional analog, the so-called "fishnet." Both were fabricated, characterized, and their properties, such as waveguiding modes, are examined. Interestingly, these devices can exhibit optical magnetism and even negative refraction; however, their general characterization at oblique incidence is challenging due to diffraction. Here, a new method of optical characterization of metamaterials which takes into account diffraction is presented. Next, surface plasmon resonance (SPR) was experimentally used in two schemes, for the first time, to determine the transition layer characteristics between a metal and dielectric. The physics of interfaces, namely the singularity of electric permittivity and how it can be electrically shifted, becomes clearer owing to the extreme sensitivity of SPR detection mechanisms. Finally, ultra-thin two-dimensional semiconducting materials had their radiative lifetime analyzed. Their lifetimes are tuned both by number of atomic layers and applied voltage biasing across the surface, and the changes in lifetime are suspected to be due to quenching or enhancement of non-radiative process rates.
Reconfigurable Aerial Computing System: Design and Development
Authors:   , Gu Yixin
Published: February 2025

In situations where information infrastructure is destroyed or not available, on-demand information infrastructure is pivotal for the success of rescue missions. In this paper, a drone-carried on-demand information infrastructure for long-distance WiFi transmission system is developed. It can be used in the areas including emergency response, public event, and battlefield. In years development, the Drone WIFI System has developed from single-CPU platform, twin-CPU platform, Atmega2560 platform to NVIDIA Jetson TX2 platform. By the upgrade of the platform, the hardware shows more and more reliable and higher performance which make the application of the platform more and more exciting. The latest TX2 platform can provide real time and thermal video transmission, also application of deep learning of object recognition and target tracing. All these up-to-date technology brings more application scenarios to the system. Therefore, the system can serve more people in more scenarios.
The Saxophone in China: Historical Performance and Development
Authors:   , Pockrus Jason
Published: February 2025

The purpose of this document is to chronicle and describe the historical developments of saxophone performance in mainland China. Arguing against other published research, this document presents proof of the uninterrupted, large-scale use of the saxophone from its first introduction into Shanghai's nineteenth century amateur musical societies, continuously through to present day. In order to better describe the performance scene for saxophonists in China, each chapter presents historical and political context. Also described in this document is the changing importance of the saxophone in China's musical development and musical culture since its introduction in the nineteenth century. The nature of the saxophone as a symbol of modernity, western ideologies, political duality, progress, and freedom and the effects of those realities in the lives of musicians and audiences in China are briefly discussed in each chapter. These topics are included to contribute to a better, more thorough understanding of the performance history of saxophonists, both native and foreign, in China.
A Countertenor Aria Collection Continuum for Studio Training and Performance
Authors:   , Stanley David Thomas
Published: February 2025

An assessment of the standard voice instructor or performer collection of printed music would likely reveal numerous operatic repertoire volumes in anthology format appropriated to the primary four voice categories. However, thorough investigation divulges little in comparable printed material accessible to the countertenor. This scarcity of systemized collections is especially evident in the territory of comprehensive countertenor operatic repertoire. This project fills that present void by creating a compilation of sixteen countertenor arias drawn from various styles and historical periods for suggested application in studio instruction and performance. Perhaps, a more meaningful project intent is the presentation of a beneficial graded literature continuum resource for the studio teacher who instructs a countertenor in various stages of vocal development. For this purpose, each of the 16 arias is categorized into four difficulty levels based on considerations of range, tessitura, coloratura demands, rhythm, sustained phrase length, tonality, melodic considerations/overall musical difficulty, accompaniment support, and ornamentation requirements. The project also addresses common issues of pedagogy and ornamentation for voice teacher consideration when instructing a developing countertenor.
Saint Sony: Deliverer of Christian Content for the Evangelical Market
Authors:   , Patino Stephen
Published: February 2025

Many evangelical Christians distance themselves from the mainstream commercial culture, because they perceive mainstream media and popular culture to promulgate immoral messages through representations such as sex and violence. This disconnect from Hollywood have made evangelicals a tough audience to market. Sony, however, has been able to connect with the evangelical market by producing a line of contemporary Christian films through their in-house division Affirm Films. By prioritizing the narratives of their films Heaven is for Real, War Room, and Miracles From Heaven to focus on contemporary Christian characters, conflicts, and settings, Sony is able to attract the evangelical audience with films that align with their conservative belief system.
Bread, Bullets, and Brotherhood: Masculine Ideologies in the Mid-Century Black Freedom Struggle, 1950-1975
Authors:   , Harvey Matt
Published: February 2025

This thesis examines the ways that African Americans in the mid-twentieth century thought about and practiced masculinity. Important contemporary events such as the struggle for civil rights and the Vietnam War influenced the ways that black Americans sought not only to construct masculine identities, but to use these identities to achieve a higher social purpose. The thesis argues that while mainstream American society had specific prescriptions for how men should behave, black Americans were able to select which of these prescriptions they valued and wanted to pursue while simultaneously rejecting those that they found untenable. Masculinity in the mid-century was not based on one thing, but rather was an amalgamation of different ideals that black men (and women) sought to utilize to achieve communal goals of equality, opportunity, and family.
Expanding the Violin's Possibilities in Chinese Music: A Case Study of Transcription and Performance Issues Related to Pipa Music Played on the Violin
Authors:   , Wang Tracy
Published: February 2025

In recent years, a large part of the erhu's repertoire has been arranged for performance on the violin and vice versa. Given the difficulties involved in transcribing the music of plucked or woodwind instruments for the violin, the erhu has been the most popular choice for transcribing Chinese music for the violin. However, the erhu and violin are radically dissimilar instruments based on different principles. Pipa music is an essential part of traditional Chinese music from as early as 202 BCE, and the instrument's repertoire represents a large portion of East Asian music aesthetics, and this context should be considered to successfully transcribe pipa music for violin. This dissertation talks briefly about Chinese music history and its categories and also focuses on the history and development of the pipa as well as its repertoire categories to provide context for the following musical examples. I use existing transcription examples from different categories of pipa music as an avenue to discuss how to transcribe pipa music for the violin. Even though the violin has some limitations for use as a plucked instrument, the instrument can still make use of several different kinds of techniques in order to play the music in a way that can represent certain features of the pipa while retaining the violin's characteristics.
The Role of Transmembrane Protein 59 in Thrombocyte Function and the Effect of MS-222 on Hemostasis in Zebrafish
Authors:   , Deebani Afnan Omar M.
Published: February 2025

Transmembrane protein 59 (tmem59) is a gene that encodes a protein involved in autophagy and apoptosis in human. A previous study in zebrafish showed that tmem59 mRNA was several folds higher in thrombocytes than those found in red blood cells (RBCs). Therefore, we hypothesized that tmem59 has a role in thrombocytes function. We injected a hybrid of control vivo-morpholino (cVMO) and tmem59 specific antisense standard oligonucleotide (tmem59SO) into adult zebrafish to knockdown tmem59.This piggyback knockdown approach resulted in fish that had more bleeding in gill bleeding assay than the control fish. The thrombocytes fromtmem59 knockdown zebrafish aggregated faster with ADP and collagen agonists. Also, the number of blood cells was reduced after the knockdown of tmem59. We also found the effects of MS-222 anesthesia on hemostasis and found that the bleeding was reduced yielding less blood and the blood cell counts increased probably due to vasoconstriction of the blood vessels. In summary, we found tmem59 is a negative regulator of hemostasis and inferred that anesthesia should be avoided in hemostasis studies.
Secure and Trusted Execution Framework for Virtualized Workloads
Authors:   , Kotikela Srujan D
Published: February 2025

In this dissertation, we have analyzed various security and trustworthy solutions for modern computing systems and proposed a framework that will provide holistic security and trust for the entire lifecycle of a virtualized workload. The framework consists of 3 novel techniques and a set of guidelines. These 3 techniques provide necessary elements for secure and trusted execution environment while the guidelines ensure that the virtualized workload remains in a secure and trusted state throughout its lifecycle. We have successfully implemented and demonstrated that the framework provides security and trust guarantees at the time of launch, any time during the execution, and during an update of the virtualized workload. Given the proliferation of virtualization from cloud servers to embedded systems, techniques presented in this dissertation can be implemented on most computing systems.
Ultrafast Photoinduced Energy and Electron Transfer Studies in Closely Bound Molecular and Nanocarbon Donor-Acceptor Systems
Authors:   , Gobeze Habtom Berhane
Published: February 2025

As part of the study, photosynthetic system constructs based on BF2-chelated dipyrromethene (BODIPY), BF2-chelated azadipyrromethene (AzaBODIPY), porphyrin, phthalocyanine, oxasmaragdyrin, polythiophene, fullerene (C60), single-walled carbon nanotube and graphene are investigated. Antenna systems of BODIPY dyads and oligomers having BODIPY as an excitation energy donor connected to different acceptors including BODIPY, azaBODIPY, oxasmaragdyrin and aluminum porphyrin are studied. Different synthetic methodologies are used to afford donor-acceptor systems either directly linked with no spacer or with short spacers of varying length and orientation. The effect of donor orientation, donor optical gap as well as nature of donor-acceptor coupling on the donor-acceptor spectral overlap and hence the rate of excitation energy transfer is investigated. In all these systems, an ultrafast energy transfer followed by electron transfer is observed. In particular, in a directly connected BODIPY-azaBODIPY dyad an unusually ultrafast energy transfer (~ 150−200 f) via Förster mechanism is observed. The observation of energy transfer via Förster instead of Dexter mechanism in such closely coupled donor-acceptor systems shows the balance between spatial and electronic coupling achieved in the donor-acceptor system. Moreover, in donor-acceptor systems involving semiconducting 1D and 2D materials, covalently functionalized single-walled carbon nanotubes via charge stabilizing (TPA)3ZnP and noncovalently hybridized exfoliated graphene via polythiophene chromophores are studied for their charge transportation functions. In both cases, not only an ultrafast charge transfer in the range of (~ 2−5 p) is observed but also the charge-separated states were long lived implying the potential of these functionalized materials as efficient charge transporting substrates with organic chromophores for photovoltaic and optoelectronic applications where ultrafast intercomponent charge transfer is vital. In addition, as a final part of this dissertation, the mechanisms of electron injection and back electron transfer in heterogeneous systems involving supramolecularly anchored high potential chromophores on TiO2 film are studied by femtosecond transient absorption spectroscopy. In this study, not only are important insights gained on the utilization of supramolecular anchoring of chromophores such as porphyrins, phthalocyanines, and their perflorinated high potential analogues, chromophores currently showing promise as highly efficient sensitizers in dye sensitized solar cells, on TiO2 film but also on the effect of anchor length and sensitizer orientation on the rates of electron injection and back electron transfer at the sensitizer-TiO2 interface.
Detection of Harmful Chemicals in the Air using Portable Membrane Inlet Mass Spectrometry
Authors:   , Kretsch Amanda Renee
Published: February 2025

Portable mass spectrometry has become an important analytical tool for chemical detection and identification outside of a lab setting. Many variations and applications have been developed to benefit various fields of science. Membrane inlet mass spectrometry is used to allow certain analytes to pass into the mass spectrometer without breaking vacuum or letting in large particulate matter. These two important analytical tools have been applied to the detection of harmful chemicals in the air. Earth-based separations and reverse gas stack modelling are useful mathematical tools that can be used to locate the source of a chemical release by back calculation. Earth-based separations studies the way different molecules will diffuse and separate through the air. Reverse gas stack modelling refers to the concentration differences of a chemical in relation to its distance from its source. These four analytical techniques can be combined to quickly and accurately locate various harmful chemical releases. The same system can be used for many applications and has been tested to detect harmful chemicals within and air-handling system. The monitoring of air-handling systems can greatly reduce the threat of harm to the building occupants by detecting hazardous chemicals and shutting off the air flow to minimize human exposure.
Vietnamese Students' Translanguaging in a Bilingual Context: Communications within a Student Organization at a US University
Authors:   , Nguyen Dung Thi
Published: February 2025

Today linguistic hybridity is often conceptualized as translanguaging. The present study of translanguaging was a linguistic ethnography, which meant investigating cultural issues as well as linguistic practices. The focus was on bilingual speakers of Vietnamese and English, two "named" languages that differ considerably in morphology, syntax, and orthography. This study, conducted over four and a half months, was situated in the Vietnamese Student Organization of a U.S. university, and it included 37 participants. The research was intended to answer two questions: what forms of translanguaging did these bilinguals use? and what reasons did they provide for instances of translanguaging? In capturing the language use of this community, my role was participant-observer, which entailed observing and audio-recording conversations in three kinds of settings: group meetings, social gatherings, and Facebook communications. Additional insights came from discourse-based interviews, focused on instances of translanguaging by 10 individuals. In the group meetings and Facebook conversations, it was conventional for the major language to be English, whereas in the social gatherings it was Vietnamese. My attention in analyzing these interactions was on patterns of translanguaging that occurred within sentences and those occurring outside sentence boundaries. Overall, most translanguaging occurred intra-sententially, as single words from one language were segmented within a sentence being spoken or written in the other. As to extra-sentential forms, this translanguaging in the group meetings mainly took the form of Vietnamese honorifics, and Facebook conversations included some extra-sentential double postings. Participants provided reasons for translanguaging that included community factors, discourse-related factors, and individual-related factors. This inquiry provides further insights into the multi-competences of bilingual individuals. The Vietnamese-English bilinguals drew flexibly from their linguistic repertoires, merging two languages that are quite different. Use of hybridized language was conventional for them and was central to their practices. This linguistic hybridity was a mutuality—one of the ways in which these students were, in fact, a community.