Mechanical properties of structural materials are highly correlated to their microstructure. The relationship between microstructure and mechanical properties can be established experimentally. The growing need for structural materials in industry promotes the study of microstructural evolution of materials by design using computational approaches. This thesis presents the microstructural evolution of two different structural materials. The first uses a genetic algorithm approach to study the microstructural evolution of a high-temperature nickel-based oxide-dispersion-strengthened (ODS) alloy. The chosen Ni-20Cr ODS system has nano Y2O3 particles for dispersion strengthening and submicron Al2O3 for composite strengthening. Synergistic effects through the interaction of small dispersoids and large reinforcements improved high-temperature strength. Optimization considered different weight factors on low temperature strength, ductility, and high temperature strength. Simulation revealed optimal size and volume fraction of dispersoids and reinforced particles. Ni-20Cr-based alloys were developed via mechanical alloying for computational optimization and validation. The Ni-20Cr-1.2Y2O3-5Al2O3 alloy exhibited significant reduction in the minimum creep rate (on the order of 10-9 s-1) at 800oC and 100 MPa. The second considers the microstructural evolution of AA 7050 alloy during friction stir welding (FSW). Modeling the FSW process includes thermal, material flow, microstructural and strength modeling. Three-dimensional material flow and heat transfer model was …

Nearly 700,000 suspects with mental disorders are arrested and Mirandized each year. The current study systematically examined the effects of cognitive deficits and psychological symptoms on both Miranda comprehension and reasoning. The current sample was comprised of 85 adult psychiatric inpatients recruited from University Behavioral Health (UBH), a private psychiatric hospital in North Texas. Unexpectedly, most inpatients demonstrated pervasive deficits in their immediate recall of a representative Miranda warning, omitting approximately four-fifths of its content. In addition, the majority of inpatients evidenced damaging errors in their reasoning about waiver decisions. As a result, 64.7% waived and subsequently confessed after only a 3-5 minute interrogation. Interestingly, impaired verbal ability but not the severity of their symptoms predicted greater deficits in Miranda comprehension.

In my dissertation, I explore the ways in which racial identity is made complex through various onlookers' misrecognition of race. This issue is particularly important considering the current state of race relations in the United States, as my project offers a literary perspective and account of the way black authors have discussed racial identity formation from the turn of the century through the start of the twenty-first century. I highlight many variations of misrecognition and racial performance as a response to America's obsession with race.

Data acquisition through wireless sensor networks (WSNs) has enormous potential for scalable, distributed, real-time observations of monitored environmental parameters. Despite increasing versatility and functionalities, one critical factor that affects the operation of WSNs is limited power. WSN sensor nodes are usually battery powered, and therefore the long-term operation of the WSN greatly depends on battery capacity and the node's power consumption rate. This thesis focuses on WSN node design to reduce power consumption in order to achieve sustainable power supply. For this purpose, this thesis proposes a Moteino-based WSN node and an energy efficient duty cycle that reduces current consumption in standby mode using an enhanced watchdog timer. The nodes perform radio communication at 915 MHz, for short intervals (180ms) every 10 minutes, and consume 6.8 mA at -14dBm. For testing, the WSN node monitored a low-power combined air temperature, relative humidity, and barometric pressure sensor, together with a typical soil moisture sensor that consumes more power. Laboratory tests indicated average current consumption of ~30µA using these short radio transmission intervals. After transmission tests, field deployment of a star-configured network of nine of these nodes and one gateway node provides a long-term platform for testing under rigorous conditions. A webserver …

This dissertation presents an analysis of Akrodha (1998), a multiple percussion solo in two movements, composed by Kevin Volans. The analysis is focused on the motivic content and subsequent iterations written within the tempos that provide the structural form of the piece. The structural tempos are supported by the presence of various motifs that serve as the tempos' characteristic traits, thereby giving the tempos more tangibility. As the work develops, these motifs reappear either as note-for-note reiterations or as variations that still maintain the unique qualities of the motifs. For comparison, similar analyses of Mr. Volans' other multiple percussion solos, She Who Sleeps with a Small Blanket (1985) and Asanga (1997), are also presented to further explore Mr. Volans' use of motifs as they relate to structural tempos. In addition, a comprehensive performance practice of Akrodha is presented based on a synthesis of considerations and methods from individuals involved in the piece's development and early performances. These include Dr. Volans himself, Jonny Axelsson (for whom Akrodha was written), and Robyn Schulkowsky (for whom She Who Sleeps with a Small Blanket and Asanga were written), as well as the author's personal experiences. This dissertation provides a deeper understanding of Akrodha for …

My lecture serves as a critical examination of the Six Sonatas Op. 3, KV. 10-15 by W.A. Mozart. I will engage the variances between the first edition of Op. 3 and those by Joseph Bopp and Louis Moyse edited specifically for the flute in hopes of providing another perspective for students, performers, and pedagogues alike. This study will (1) provide background information regarding the creation of KV. 10-15, (2) include a brief analysis of each sonata, (3) compare adaptions between the first edition, according to NMA, and two modern flute transcriptions, and (4) produce two new transcriptions. My new transcriptions of Sonatas KV. 10 and 13 represent a closer interpretation to the first edition and alerts students and teachers to the differences between the editions by Joseph Bopp and Louis Moyse to that of the first and NMA editions. The goal is to stimulate performers to reappraise their approach to this particular repertoire and to encourage more authentic performances of these engaging sonatas.

Employing the research approach known as portraiture, this study investigated the varying ways in which three secondary English language arts teachers at a visual and performing arts high school conceptualized and designed multimodal literacy learning. Also studied were the ways in which their students responded to these designs; and in keeping with portraiture, attention went to the changes in the researcher's own understandings. This multi-case study and cross-case analysis built on prior multimodal literacy research in secondary education, but unlike previous studies, gave major attention to how teachers' conceptualization of multimodality and their own roles related to the designs that they produced. Since the school emphasized arts as well as academics, particular attention went to teachers' conceptions of, and designs for, arts-related multimodalities. Data for the portraits came from observations, teacher and student interviews, artifacts, and a researcher journal. Recursive analysis focused on repetitive refrains, resonant metaphors, and emergent themes, which provided data for "painting" the teachers' portraits in prose. Findings show the connections among teachers' beliefs, values, and the multimodal designs, which included images, movement, sound, classroom displays, and room arrangements. The three teachers took dramatically different approaches to multimodal designs as they created their productions of English language …

Current literacy assessments are focused on a single mode of meaning-making (reading and writing, whether oral or written) and assume that literacy and language are "fixed systems"-- comprised of discrete skills that can be taught and measured in isolation. This validation and privileging of a single mode of assessment has resulted in children labeled "At-risk" falling significantly behind those without this label. This study investigates what a teacher can learn from a diverse range of assessment forms and modes. In a fourth-grade self-contained classroom, students engaged in multimodal assessments and created multimodal portfolios. Five students labeled "At-risk" were chosen for a deeper analysis. Students' artifacts, interviews, and observations served as the main data sources. Both narrative analysis and analysis of narrative were utilized to generate a more complete narrative of these five students as meaning makers and communicators. The general findings suggest that these children labeled "At-risk" were, in fact, able to engage in multimodal thinking and communication from a critical stance.

Semiconductor based micro- and nano-structures grown in a systematic and controlled way using selective area growth are emerging as a promising route toward devices for integrated optical circuitry in optoelectronics and photonics field. This dissertation focuses on the experimental investigation of the nonlinear optical effects in selectively grown gallium nitride micro-pyramids that act as optical cavities, zinc oxide submicron rods and indium gallium nitride multiple quantum well core shell submicron tubes on the apex of GaN micro pyramids that act as optical antennae. Localized spatial excitation of these low dimensional semiconductor structures was optimized for nonlinear optical light (NLO) generation due to second harmonic generation (SHG) and multi-photon luminescence (MPL). The evolution of both processes are mapped along the symmetric axis of the individual structures for multiple fundamental input frequencies of light. Effects such as cavity formation of generated light, electron-hole plasma generation and coherent emission are observed. The efficiency and tunability of the frequency conversion that can be achieved in the individual structures of various geometries are estimated. By controlling the local excitation cross-section within the structures along with modulation of optical excitation intensity, the nonlinear optical process generated in these structures can be manipulated to generate coherent light …

Monthly newspaper providing news and information to the Tarrant, Dallas, and Denton County Latino communities along with advertising.

This thesis describes an approach for object recognition using the chordiogram shape-based descriptor. Global shape representations are highly susceptible to clutter generated due to the background or other irrelevant objects in real-world images. To overcome the problem, we aim to extract precise object shape using superpixel segmentation, perceptual grouping, and connected components. The employed shape descriptor chordiogram is based on geometric relationships of chords generated from the pairs of boundary points of an object. The chordiogram descriptor applies holistic properties of the shape and also proven suitable for object detection and digit recognition mechanisms. Additionally, it is translation invariant and robust to shape deformations. In spite of such excellent properties, chordiogram is not scale-invariant. To this end, we propose scale invariant chordiogram descriptors and intend to achieve a similar performance before and after applying scale invariance. Our experiments show that we achieve similar performance with and without scale invariance for silhouettes and real world object images. We also show experiments at different scales to confirm that we obtain scale invariance for chordiogram.

"Off Main Street" is a collection of short stories concerned, primarily, with the expression of womanhood in the American Midwest.

This dissertation is a study of the State of Maryland in the secession crisis of 1860-1861. Previous historians have emphasized economic, political, societal, and geographical considerations as the reasons Maryland remained loyal to the Union. However, not adequately considered is the manner in which Maryland understood and reacted to the secession of the Lower South. Historians have tended to portray Maryland's inaction as inevitable and reasonable. This study offers another reason for Maryland's inaction by placing the state in time and space, following where the sources lead, and allowing for contingency. No one in Maryland could have known that their state would not secede in 1860-61. Seeing the crisis through their eyes is instructive. It becomes clear that Maryland was a state on the brink of secession, but its resentment, suspicion, and anger toward the Lower South isolated it from the larger secession movement. Marylanders regarded the Lower South's rush to separate as precipitous, dangerous, and coercive to the Old Line State. A focus on a single state like Maryland allows a deeper, richer understanding of the dynamics, forces, and characteristics of the secession movement and the federal government's response to it. It cuts through the larger debates about the …

Orchestral excerpt books have become a staple in instrumental study for those pursuing a career in the orchestra. Many of these books, especially those for clarinet, are catered towards the popular and prolific clarinet solos found in principal clarinet parts. However, there is a lack of quality resources geared towards those pursuing second clarinet positions. Former materials might be outdated or are filled with inconsistencies or mistakes. The purpose of this document is to provide a resource and guide for select second clarinet orchestral excerpts. In this guide, certain aspects of playing second clarinet will be discussed as a whole and as it pertains to selected excerpts. The excerpts included in this document are: Bartók Concerto for Orchestra, Mendelssohn The Hebrides and Scherzo from A Midsummer Night's Dream, Ravel Daphis et Chloé and Rapsodie Espagnole, and Tchaikovsky Symphony No. 5.

Traditionally, medical residency positions have been primarily funded by the federal government. However, due to declining governmental funding support over time, medical schools have resorted to fund these programs through other means such as clinical fees and payments for services. This change has affected the number and types of residencies available to medical school graduates. The purpose of this study was to measure how the availability of fiscal resources shape mission-related outputs, particularly medical residency positions at medical schools. Using academic capitalism as the theoretical framework provided a lens through which to examine how federal policies have shaped the availability and funding of medical residencies today at the institutional level. This concept has been studied in traditional colleges and universities and how they balance mission and money, but less so in the context of medical schools. This study used a fixed effect panel analysis to study the impact of selected variables over a 10-year period on financing of medical residencies. Findings included that tuition revenues, paid for by undergraduate medical students, are increasingly funding medical residency positions. There was little to no effect from hospital revenues and federal research monies on increasing the number of medical residency positions. The funding …

In this paper we explore coloring theorems for the reals, its quotients, cardinals, and their combinations. This work is done under the scope of the axiom of determinacy. We also explore generalizations of Mycielski's theorem and show how these can be used to establish coloring theorems. To finish, we discuss the strange realm of long unions.

The purpose of this two-phase, explanatory mixed methods study was to understand the benefits of teaching grammar from three different learning methods: face-to-face, online personalized learning lab and a blended learning method. The study obtained quantitative results from a pre and post-tests, a general survey and writing assignment rubrics from three English 1301 classes and then follow-up interviews with focus groups from each class to explore those results in more depth. In the first phase, quantitative research questions addressed the relationship of grammar teaching methods and grammar acquisition with students at a two-year technical and academic college. In the second phase, used focus groups to perform qualitative interviews to better explore the quantitative results.

The serious investigation of humor's function in society is an emerging area of research in critical humor studies, a "negative" subsect of the extensive and "positive" research that assumes humor's goodness. Using Michael Billig's theory of ridicule as a framework, this study explored how humor operated to discipline characters who broke social norms or allowed characters to rebel against those norms. Layering this with gender performative theory, the study also investigated how different male and female characters used ridicule and were subject to it themselves. After examining ridicule in The Big Bang Theory, 2 Broke Girls, and The Odd Couple using a critical rhetorical analysis, the findings revealed that disciplinary ridicule was used more overtly throughout all three programs, while potentially rebellious ridicule emerged in only a few scenes. In addition, men were overwhelmingly the subjects of disciplinary ridicule, although women found themselves as subjects throughout all three programs as well. The discursive ridiculing of non-normative bodies constructed and maintained social norms about gender and sexuality, thereby uninviting these bodies from participating in society.

Professional counselors may choose to increase self-awareness and/or engage in self-care through the use of personal therapy. In particular, counselors may feel reluctant to pursue personal therapy due to stigma related to their professional identity. To date, researchers have paid limited attention to the unique concerns of counselors in personal therapy. The purpose of this phenomenological study was to explore counselors' experiences and decision-making in seeking personal therapy. I addressed the following questions: What contributes to counselors' decision to seek personal therapy? How do counselors make meaning of their experiences in utilizing personal therapy? Participants included 13 licensed professional counselors who had attended personal therapy with a licensed mental health professional in the past three years. I identified six emergent themes through adapted classic phenomenological analysis: presenting concerns, therapist attributes, intrapersonal growth, interpersonal growth, therapeutic factors, and challenges. Participants reported positive changes in personality and relationships, as well as several barriers specifically related to their counselor identity. Findings inform mental health professionals and the field of counselor education and supervision about the personal and professional needs of counselors. Limitations and future research directions are discussed.

Despite recent scholarly interest in college students' spirituality and spiritual development, as well as research indicating that students are interested in spirituality and have a strong desire to integrate spirituality into their lives, few researchers have addressed the spiritual experiences of gay and lesbian college students. Utilizing a phenomenological qualitative approach, I explored the spiritual experiences of nine gay and lesbian college students at two religiously affiliated universities in the southwest region of the United States. The ages of the participants ranged from 19 to 23, with a mean of 21. There were five female, three male, and one gender queer participants. Seven participants identified as white, while the other two participants identified as Hispanic. I identified three major themes related to their lived experience of spirituality: (1) spiritual quest characterized by struggle and pain, (2) finding reconciliation and acceptance, and (3) the importance of support from the university, student groups, friends, and family. Implications for practice included the importance of establishing an official recognized student organization to support gay and lesbian students, creating spaces for personal reflection, meditation, prayer, and solitude as well as safe spaces, the need for educational and outreach programs for faculty, staff, and students, and …

This thesis proposes a design of a rapidly deployable cellular network prototype that provides voice and data communications and it is interoperable with legacy devices and the existing network infrastructure. The prototype is based on software defined radio and makes use of IEEE 802.11 unlicensed wireless radio frequency (RF) band for backhaul link and an open source GSM implementation software. The prototype is also evaluated in environments where there is limited control of the radio frequency landscape, and using Voice Over Internet Protocol (VoIP) performance metrics to measure the quality of service. It is observed that in environments where the IEEE 802.11 band is not heavily utilized, a large number of calls are supported with good quality of service. However, when this band is heavily utilized only a few calls can be supported as the quality of service rapidly degrades with increasing number of calls, which is due to interference. It is concluded that in order to achieve tolerable voice quality, unused licensed spectrum is needed for backhaul communication between base stations.

This research explores the need for a unique, self-help manual to provide music students with diagnoses of dyslexia under the umbrella of specific learning disorder (SLD) and/or attention-deficit/hyperactivity disorder (ADHD) a positive way of coping with their musical tendencies. Dyslexia and ADHD are the most prevalent, comorbid neurodevelopmental disorders with symptoms affecting academic, social, and/or personal life. Musical symptoms could include difficulties in any of the following areas: notation reading; time, pulse, and rhythm; posture; fingering coordination; memorization; sight-reading; organization of thoughts, time, and materials; spatial and directional awareness; focused attention; retention of new concepts; positive attitude; and the ability to process written and/or oral information quickly and accurately. This dissertation includes scientific information related to the conditions; an analysis of musical tendencies; pedagogical approaches; personal anecdotal stories that serve to illustrate scientific concepts; and a self-help manual. The manual, "Music, Dyslexia, and ADHD: A Self-Help Manual for Students with Exceptionalities," is a colorful, accessible resource that begins to fill the self-help gap in the musical instruction literature for students with dyslexia and/or ADHD. It offers useful information, multisensory/multimodal techniques, and coping strategies to empower students with these learning differences to achieve more rewarding, independent success throughout their musical studies.

This dissertation takes up the question of the social function of philosophy. Popular accounts of the nature and value of philosophy reinforce long-standing perceptions that philosophy is useless or irrelevant to pressing societal problems. Yet, the increasingly neoliberal political-economic environment of higher education places a premium on mechanisms that link public funding for research to demonstrations of return on investment in the form of benefitting broader society. This institutional situation presents a philosophical problem warranting professional attention. This project offers a diagnosis of the problem and develops a way forward from it. Drawing from Foucauldian archaeological methods, my analysis focuses on the interplay of institutional structures and intellectual practices. Since the early 20th century, departments of philosophy on college and university campuses have been the center of gravity for professional philosophy in the US. Establishing this institutional ‘home' for philosophers drove the adoption of disciplinary practices, norms, and standards for inquiry. But the metaphilosophical assumptions underpinning disciplinarity have become problematic, I argue: they are poor guides for navigating the situation of higher education in the 21st century. Several movements within the profession of philosophy during the 1960s and 70s sought to reverse philosophers' general retreat from public affairs. Applied philosophy, …

The outbreak of the Ebola virus was declared a Public Health Emergency of International Concern by the World Health Organisation (WHO). Due to the complex nature of the outbreak, the Centers for Disease Control and Prevention (CDC) had created interim guidance for monitoring people potentially exposed to Ebola and for evaluating their intended travel and restricting the movements of carriers when needed. Tools to evaluate the risk of individuals and groups of individuals contracting the disease could mitigate the growing anxiety and fear. The goal is to understand and analyze the nature of risk an individual would face when he/she comes in contact with a carrier. This thesis presents a tool that makes use of contextual data intelligence to predict the risk factor of individuals who come in contact with the carrier.