High-temperature piezoelectric wafer active sensors (HT-PWAS) have been developed for structure health monitoring at hazard environments for decades. Different candidates have previously been tested under 270 °C and a new piezoelectric material langasite (LGS) was chosen here for a pilot study up to 700 °C. A preliminary study was performed to develop a high temperature sensor that utilizes langasite material. The Electromechanical impedance (E/M) method was chosen to detect the piezoelectric property. Experiments that verify the basic piezoelectric property of LGS at high temperature environments were carried out. Further validations were conducted by testing structures with attached LGS sensors at elevated temperature. Additionally, a detection system simulating the working process of LGS monitoring system was developed with PZT material at room temperature. This thesis, for the first time, (to the best of author’s knowledge) presents that langasite is ideal for making piezoelectric wafer active sensors for high temperature structure health monitoring applications.

The Concerto in F, Op. 4 (BI 549) by Alessandro Rolla (1757-1841) is a relatively unknown work that can serve as a complement for existing standard Classical repertoire for the viola, thus providing the means for greater stylistic education and technical foundation for viola study from this time period. In order to make the music from this lesser-known composer more readily available for future performers, a performance edition has been created from uncirculated sources using the notation software “Finale,” combining separate parts into a conductor’s full score, which did not exist before. This performance edition will provide greater access to Rolla’s music for viola performance and study. In addition to addressing the challenges to creating a performance edition, this lecture secondarily addresses Rolla’s biographical details relevant to the concerto and his stylistic influences.

American composer, author and conductor Leonard J. Lehrman (b. 1949) has spent a majority of his lifetime devoted to the scholarship on the music of Marc Blitzstein (1905-1964). Lehrman completed Blitzstein’s Idiots First in 1973, and finished his own one-act opera Karla in 1974. In an effort to honor Blitzstein, Lehrman included Karla along with Idiots First to begin the set of one-act operas to be titled Tales of Malamud. Lehrman coined the term “selective serialism” in reference to Blitzstein’s use of serial techniques representing something associated with death or something diabolical. Lehrman applies a similar technique in that he uses serialism to reference the presence of a handwritten notes that are tied to the dramatic context of the opera. This study examines Lehrman's use of serialism in Karla as it was directly influenced by Blitzstein’s use of serialism in Idiots First.

This qualitative study aims to analyze the lived reality of women working in sports media today. Through systematic analysis of 12 in-depth interviews, the findings of this study suggest that the adoption of technological advancements in news media and all associated outlets have created a leveling effect for women due to the demand for highly skilled individuals who can handle the digital demand of modern news production. This study suggests that longtime gender disparities in sports media are experiencing a bit of a reprieve due to the massive digital audience and the need for professionals who can deliver information quickly and efficiently and with accuracy. However, the persistent symbolic annihilation of women as well as hegemonic hiring practices that emphasize aesthetic appeal have created a difficult path for women to move off the sidelines and into roles with more creative and analytical breadth, even with a rapidly increasing demand for jobs in the media industry.

This two-part study included a content analysis of an AP art history text and a survey together with interviews with AP art history teachers that embraced both quantitative and qualitative research methodologies. The first phase of the study examined one of the more popular art history survey texts in the AP art history program, Gardner’s Art through the Ages, in terms of how inclusive it is in addressing issues of sexual orientation and, particularly, same-sex perspectives. In addition, the text was examined for evidence of sexual orientation ignored – particularly same-sex perspectives ignored and for heteronormative hegemonies. The second phase investigated the understandings and opinions of AP art history teachers toward the inclusion of sexual orientation and same-sex perspectives in their curriculums and classrooms. Recent recognition of gay, lesbian, and same-sex perspectives in the study of art history has challenged art educators and art historians to begin to consider opening up their curriculums and writings to include these perspectives. These ignored perspectives produce important understandings that enrich and deepen the discourse of art history. The inclusion of gay and lesbian content and same-sex perspectives to the study of AP art history, not only effectively serves the needs of AP art …

Robert Dick is best known as a leading proponent of contemporary music and extended techniques for the flute; however, his teaching is informative on a broader level that encompasses technical and musical aspects of traditional playing as well as contemporary practices. This dissertation is intended to serve as a resource for flutists, providing a detailed documentation of his approach to playing and teaching the flute. Dick’s highly integrated pedagogy—informed by his traditional training, revolutionary work in documenting and codifying extended techniques on the flute, and his equal personal involvement in performance, composition, and improvisation—provides a strong basis and clear trajectory, musically as well as technically, to his students. The primary research material for this document is the author’s personal collection of detailed notes from her studies with Dick. Additionally, as no pedagogy exists in a vacuum, a number of sources including historical treatises and more recent published documentations of flutists’ pedagogies provide context and support. Such publications are of current and continuing educational value; considering Dick’s contributions to the development of flute playing and his integrated approach to teaching the flute, a document that accurately and thoroughly addresses his pedagogy is a logical addition to this literature.

The purpose of this study was to investigate constructions of choir identity among high school choir students in the United States public school classroom setting. The research questions were (a) what are the processes involved in construction of choir identity and (b) how are the processes related to the group identity of the choir. The data were collected through participant observations in one selected choir classroom and semi-structured interviews with students from the choir class. The results included six processes of identity construction as well as identification of the ways in which each process was related to the choir group’s identity. The processes and their links to the overall choir group identity provided further insight into the ways in which high school choir students construct their identities, and they also supported methods of teaching commonly used in high school choir settings.

The purpose of this quantitative study was to determine the current state of community college faculty development program evaluation and identify possible influences on evaluation practices. Data from 184 survey responses and the Integrated Postsecondary Education Data System (IPEDS) were analyzed to answer three research questions. Multiple regression was used to determine if a relationship existed between the dependent/outcome variable (evaluation utilization score) and the independent/predictor variable (accrediting agency affiliation: MSCHE, NEASC, NCA, NWCCU, SACS, and WASC) and/or control variables (institution locale, student FTE, expenses per student FTE, percent spent on instruction, and percent of full-time faculty). Results were not statistically significant, F (12, 163) = 1.176, p = .305. The mean evaluation scores were similar for all six accrediting agencies ranging from 60-69. The rural variable was statistically significant with p = .003 and alpha = .05, but it only accounted for 3.6% of the variance explained. Logistic regression was used to determine if a relationship existed between the dependent/outcome variable (use of evaluation) and the above-specified independent/predictor variable and/or control variables for six faculty development program activities. Results revealed that significant predictor variables for the use of evaluation vary based on the faculty development program activity. Statistically significant …

Consumers demand new and innovative personal computing devices every 2 years when their cellular phone service contracts are renewed. Yet, a 2 year development cycle for the concurrent development of both hardware and software is nearly impossible. As more components and features are added to the devices, maintaining this 2 year cycle with current tools will become commensurately harder. This dissertation delves into the feasibility of simplifying the development of such systems by employing heterogeneous systems on a chip in conjunction with a retargetable compiler such as the hybrid computer retargetable compiler (Hy-C). An example of a simple architecture description of sufficient detail for use with a retargetable compiler like Hy-C is provided. As a software engineer with 30 years of experience, I have witnessed numerous system failures. A plethora of software development paradigms and tools have been employed to prevent software errors, but none have been completely successful. Much discussion centers on software development in the military contracting market, as that is my background. The dissertation reviews those tools, as well as some existing retargetable compilers, in an attempt to determine how those errors occurred and how a system like Hy-C could assist in reducing future software errors. In …

Sertraline is a selective serotonin reuptake inhibitor (SSRI) that is widely used for the treatment of depression and anxiety. Due to the abundant therapeutic use of sertraline, low levels have been detected in municipal wastewater effluents suggesting that aquatic organisms may be exposed. The purpose of this study was to evaluate the steroidogenic effects of sertraline on larval (FHM) and adult female fathead minnows (FFHM), Pimephales promelas. Larval FHM were exposed to 0.1, 1, and 10 µg/L sertraline for 28 days and analyzed via RT-qPCR for differential expression of 11β-Hydroxysteroid dehydrogenase (11β-HSD), 20β-Hydroxysteroid dehydrogenase (20β-HSD), aromatase (CYP19), and nuclear thyroid receptor alpha (TRα). FFHM were exposed to 3 or 10 µg/L sertraline for 7 days with the brain and ovary excised at exposure termination. Juvenile FHM exposed to 0.1 μg/L sertraline had a significant upregulation of both 20β-HSD and TRα. FFHM exposed to 10 µg/L sertraline had a significant upregulation of 11β-HSD expression in brain tissue, while no steroidogenic changes were observed in the FFHM ovary. Similarly, in FFHM brain tissue, CYP19 and 20β-HSD expression levels were significantly higher in fish exposed to 10µg/L sertraline compared to control. The significance of these findings with respect to survival, growth and reproduction …

Béla Bartók (1881-1945), one of the twentieth century’s most significant composers, is also well known as an ethnomusicologist and concert pianist. However, Bartók’s work as a pedagogue and as an editor has received relatively little scholarly attention, despite famous pupils and despite his preparation of numerous critical and educational editions of his own and others’ works. While the critical editions are few, a significant number of Bartók’s editions of piano works have an educational purpose; these editions contain highly detailed performing indications and hold substantial potential for investigating Bartók’s ideas on the performance of works by other composers. Bartók edited nineteen piano sonatas by Haydn for educational purposes between 1911 and 1920. Bartók’s edition of Haydn’s Piano Sonata Hob.XVI:49 in E-flat Major is compared with both the first edition and the facsimile of the manuscript, with a focus on articulation, pedaling, dynamics, fingering, and other significant markings such as indications of expression and ornamentations. This document examines Bartók’s editorial input in this edition as an exemplar of his stylistic principles, and explores the value of Bartók’s Haydn editions as performing editions by critically examining both his editorial contributions and possible execution issues. This study thus provides an understanding of Bartók’s …

Synthesis and capture of antihydrogen in controlled laboratory conditions will enable precise studies of neutral antimatter. The work presented deals with some of the physics pertinent to manipulating charged antiparticles in order to create neutral antimatter, and may be applicable to other scenarios of plasma confinement and charged particle interaction. The topics covered include the electrostatic confinement of a reflecting ion beam and the transverse confinement of an ion beam in a purely electrostatic configuration; the charge sign effect on the Coulomb logarithm for a two component (e.g., antihydrogen) plasma in a Penning trap as well as the collisional scattering for binary Coulomb interactions that are cut off at a distance different than the Debye length; and the formation of magnetobound positronium and protonium.

The purpose of the study is to describe the current status of and the relationships between teacher self-efficacy and in-service teachers’ perceptions and/or attitudes of (a) the quantity and quality of feedback from formative evaluation, (b) toward feedback from formative evaluation, and (c) the impact of feedback from formative evaluation on teacher self-efficacy. In addition to calculating correlation coefficients, 6 teachers were interviewed – 2 each from high, medium, and low efficacy schools. The quantitative data reported low, positive correlations between all of the factors. Statistically significant correlations were found between 8 of the 12 factors including teacher attitudes toward feedback from formative evaluation and: overall Teacher Sense of Efficacy Scale (r = .302), student engagement (r = .309), instructional strategies (r = .237) and classroom management (r =.266). Other statistically significant correlations were found between teacher perceptions of the impact of feedback from formative evaluation and its relationship to self-efficacy and: overall Teachers’ Sense of Efficacy Scale (r = .295), Student Engagement (r = .300), Instructional Strategies (r = .209), and Classroom Management (r = .282). The face-to-face interviews and online focus group supported the quantitative findings as the participants reported that they value formative evaluation and feedback and …

This thesis investigates how to create an environment for organizational change within the Market Research Department at the Gangler Company (a US-based consumer products company). I explore what is influencing the current cultural environment and which of those influencers can be shifted to encourage organizational change toward the “ideal” culture that the organization has identified. Using new institutionalism as the theoretical approach, I discuss the significance of institutional forces (such as the economy and the rise in technology) on the cultural elements (i.e. behaviors, ideas, material artifacts and social structures) in the Market Research Department. Lastly, I show that by understanding those institutional influences, I can better assess what cultural elements can be shifted and which cannot. Of the cultural elements that are able to be shifted, I recommend three interventions that the organization should employ: 1) from a contrive culture to a culture of candor, 2) from a culture of division to a culture of cohesion, and 3) from a culture of knowing to a culture of learning.

This dissertation provides a theoretical analysis and examination of the role of imagination in the formation of an environmental ethos. The majority of ethical theories in environmental thought largely neglect the role that imagination plays in both the relationships that humans form with their environment, and the subsequent role that imagination plays in constituting the way that those relationships are understood ethically. To explore the role of imagination in constituting and subsequently projecting such an ethical way of being, this dissertation selectively analyzes the history of imagination in philosophy, cognitive science, and environmental thought. In addition, this dissertation also explores the role that images play in forming collective responses to environmental disasters, and the further role that imagination plays in overcoming the moral motivation gap.

Angular distributions and total yields of atoms sputtered from bismuth targets by normally incident 10 keV -50 keV Ne+ and Ar+ ions have been measured both experimentally and by computer simulation. Polycrystalline Bi targets were used for experimental measurements. The sputtered atoms were collected on high purity aluminum foils under ultra-high vacuum conditions, and were subsequently analyzed using Rutherford backscattering spectroscopy. The Monte-Carlo based SRIM code was employed to simulate angular distributions of sputtered Bi atoms and total sputtering yields of Bi to compare with experiment. The measured sputtering yields were found to increase with increasing projectile energy for normally incident 10 keV - 50 keV Ne+ and Ar+ ions. The shapes of the angular distributions of sputtered Bi atoms demonstrated good agreement between experiment and simulation in the present study. The measured and simulated angular distributions of sputtered Bi exhibited an over-cosine tendency. The measured value of the degree of this over-cosine nature was observed to increase with increasing incident Ne+ ion energy, but was not strongly dependent on incident Ar+ ion energy. The differential angular sputtering yield and partial sputtering yields due to Ar ion bombardment of an inhomogeneous liquid Bi:Ga alloy have been investigated, both experimentally and …

Charles Wuorinen’s contributions to contemporary music are significant. He has produced more than 260 compositions in a wide array of genres including pieces for orchestra, opera, ballet, chamber ensemble, and soloists. This document serves as an analysis and performance guide for Charles Wuorinen’s work for solo flute, Flute Variations II. Issues of analysis include serial techniques, time-point nesting, and pitch centricity and provide insight into the compositional style of the composer. As this work exhibits techniques borrowed from traditional shakuhachi performance, this document provides a brief history of the shakuhachi and an overview of the shakuhachi techniques utilized in Flute Variations II. The performance guide provides a pedagogical narrative to aid in the synthesis of conceptual ideas with contemporary techniques.

The electromagnetic shielding effectiveness of kenaf bast fiber based composites with different iron oxide impregnation levels was investigated. The kenaf fibers were retted to remove the lignin and extractives from the pores in fibers, and then magnetized. Using the unsaturated polyester and the magnetized fibers, kenaf fiber based composites were manufactured by compression molding process. The transmission energies of the composites were characterized when the composite samples were exposed under the irradiation of electromagnetic (EM) wave with a changing frequency from 9 GHz to 11 GHz. Using the scanning electron microscope (SEM), the iron oxide nanoparticles were observed on the surfaces and inside the micropore structures of single fibers. The SEM images revealed that the composite’s EM shielding effectiveness was increased due to the adhesion of the iron oxide crystals to the kenaf fiber surfaces. As the Fe content increased from 0% to 6.8%, 15.9% and 18.0%, the total surface free energy of kenaf fibers with magnetizing treat increased from 44.77 mJ/m2 to 46.07 mJ/m2, 48.78 mJ/m2 and 53.02 mJ/m2, respectively, while the modulus of elasticity (MOE) reduced from 2,875 MPa to 2,729 MPa, 2,487 MPa and 2,007 MPa, respectively. Meanwhile, the shielding effectiveness was increased from 30-50% to 60-70%, …

Studies on prostitution have typically focused on the experiences, problems, and histories of prostitutes, rather than examining men who seek to purchase sex. Race has also been overlooked as a central factor in shaping the sex industry and the motivations of men who seek to purchase sex. This study utilizes online reviews of prostitutes to examine the way men who purchase sex discuss Asian prostitutes in comparison to White prostitutes. This paper traces the history of colonialism and ideas of the exotic Orient to modern stereotypes of Asian women. These stereotypes are then used to frame a quantitative and qualitative analysis of online reviews of prostitutes and compare the ways in which Asian prostitutes and white prostitutes are discussed. Further, the reviews are used to examine more broadly what services, traits, and behaviors are considered desirable by men who use prostitutes. The study finds that there are significant quantitative and qualitative differences in how men discuss Asian and White prostitutes within their reviews, and that these differences appear to be shaped by racially fetishizing stereotypes of Asian women. Prostitution also appears to reinforce male dominance and patriarchy in the form of masculine control and the feminine servicing of male sexual …

In order to better tailor treatment to specific populations, factors which contribute to health disparities among different racial/ethnic groups must be examined. Among Mexican American individuals, the high rate of diabetes represents a significant contributor to overall health. The present study focuses on factors affecting diabetes status among Mexican Americans born in either Mexico or the United States using the 2007 – 2008 NHANES data set. Comparisons were made between diabetes status based on self-report and clinical classification using HbA1c. Results indicated that within the diabetic subsample, Mexican Americans born in Mexico were twice as likely to be incorrectly classified as non-diabetic, when they actually were diabetic, when using a self-report method. In contrast, nativity did not result in differences in diabetes incidence using the HbA1c clinical cut-score diagnostic classification. Age, BMI, gender, nativity, and health insurance coverage were found to have varying relationships to diabetes prevalence and HbA1c levels, but time in the U.S. for Mexico-born individuals was not found to uniquely predict diabetes incidence. Analyses also demonstrated that Mexico-born males, as compared to the other groups, had significantly higher HbA1c levels. Further research is necessary to better understand the relationships among these factors. However, findings do demonstrate a …

When the dust settles, John Adams’s Nixon in China and Philip Glass’s Einstein on the Beach may stand as the most important operas of the latter twentieth century. The critical essay portion of this thesis examines the trajectory of minimalist opera, from its beginnings with Glass’s Einstein on the Beach through the more romantic operas of John Adams, Steve Reich’s multimedia opera The Cave, David Lang’s musical-influenced The Difficulty of Crossing a Field, and finally the post-minimalist operas currently being staged by young composer Nico Muhly. It examines the differences between the more abstract trajectory established by the early Glass operas and the plot driven trajectory established by operas more commonly associated with John Adams, most significantly Nixon in China. Additionally, the aforementioned pieces are compared and contrasted with the author’s newly composed chamber opera Violetting through August’s End (or the sunset in water, the carillon-chime in square).

Children with autism spectrum disorder (ASD) show significant deficits in communication, emotion recognition, perspective taking, and social skills. One intervention gaining increased attention is the use of computer assisted instruction (CAI) to teach social, emotional and perspective-taking skills to individuals with ASD with the purpose of improving theory of mind skills. This study evaluated the effectiveness of CAI for improving theory of mind skills in four children with high functioning autism ages 5 to 12 years. A single-subject multiple baseline research design across participants was utilized to evaluate the effectiveness of CAI. The software contained 22 instructional scenarios that asked participants to identify emotions of characters based on situational cues displayed in line drawn pictures and audio feedback for correct and incorrect responses. Mind-reading skills were assessed using ten randomly selected scenarios for various emotions and no audio feedback. Visual analysis of the data revealed that all four participants increased mind-reading skills during the CAI condition. Additionally, this study evaluated levels of task engagement during experimental conditions. Three of the four participants showed an increase in task engagement during CAI compared to paper-based social stories used during baseline. Generalization of skills was assessed through the use of social scenarios acted …

This analysis of faunal remains from eleven archaeological sites in the northern San Juan region, extensively occupied by the Ancestral Pueblo people until they leave the region by AD 1300, explores the effects of resource intensification of small wild and domestic resources leading up to this regional depopulation. By examining multiple lines of evidence, in addition to faunal abundance, causal factors are identified to address changes in abundances through time. In particular, age- and sex-based mortality are examined for lagomorphs (jackrabbits and cottontails) and domesticated turkey, respectively, to test hypotheses generated using the prey and patch choice models. Analyses of these resources follow a systematic paleontology which provides explicit identifications made of five sites from a large study area, Goodman Point Pueblo Unit. These data are integrated with those from large village sites from the encompassing central Mesa Verde region. The results of both analyses help clarify why the Ancestral Pueblo people left southwestern Colorado. During the final twenty-year occupation period, the results of this study support a shift from reliance on turkey husbandry to intense exploitation of locally available garden resources (i.e. cottontails).

Mobile phones are one of the essential parts of modern life. Making a phone call is not the main purpose of a smart phone anymore, but merely one of many other features. Online social networking, chatting, short messaging, web browsing, navigating, and photography are some of the other features users enjoy in modern smartphones, most of which are provided by mobile apps. However, with this advancement, many security vulnerabilities have opened up in these devices. Malicious apps are a major threat for modern smartphones. According to Symantec Corp., by the middle of 2013, about 273,000 Android malware apps were identified. It is a complex issue to protect everyday users of mobile devices from the attacks of technologically competent hackers, illegitimate users, trolls, and eavesdroppers. This dissertation emphasizes the concept of intention identification. Then it looks into ways to utilize this intention identification concept to enforce security in a mobile phone platform. For instance, a battery monitoring app requiring SMS permissions indicates suspicious intention as battery monitoring usually does not need SMS permissions. Intention could be either the user's intention or the intention of an app. These intentions can be identified using their behavior or by using their source code. Regardless …