Now showing items 3952-3971 of 20274


      Clabby, John Francis (The University of Arizona., 1979)
    • D230N-Tm Induced Dilated Cardiomyopathy and the Role of Fetal cTnT Isoform Switching in Modulating Disease Severity

      Tardiff, Jil C.; Lynn, Melissa L.; Tardiff, Jil C.; Konhilas, John P.; Granzier, Hendrikus; Lynch, Ronald; Harris, Samantha (The University of Arizona., 2017)
      In 1980, the World Health Organization task force first sought to define and classify cardiomyopathies. They defined cardiomyopathies as "heart muscle diseases of unknown cause" with three main classifications including: hypertrophic cardiomyopathy (HCM), dilated cardiomyopathy (DCM), and restrictive cardiomyopathy [1]. Over the next three decades it became patently obvious that this simple definition was not sufficient to describe the complex heterogeneity of diseases present in the patient population. More robust definitions were necessary for mechanistic links to be established and meaningful therapeutics to be developed. Since then the accepted definition of a cardiomyopathy has evolved and the classifications have greatly expanded. The most recent definition from the American Heart Association Council on Clinical Cardiology states: Cardiomyopathies are a heterogeneous group of diseases of the myocardium associated with mechanical and/or electrical dysfunction that usually (but not invariably) exhibit inappropriate ventricular hypertrophy or dilatation and are due to a variety of causes that frequently are genetic. Cardiomyopathies either are confined to the heart or are part of generalized systemic disorders, often leading to cardiovascular death or progressive heart failure–related disability [2]. This latest definition (2006) reflects the growing recognition of molecular genetics as a key factor in the development of cardiomyopathies and highlights the ever-growing complexity of disease classification. Today the genetic basis of HCM and DCM is widely recognized yet our understanding of the precise mechanisms underlying the disease remains unclear. To add to this disconnect, by the time patients become symptomatic, pathology has progressed past the initial phase, where meaningful treatment could occur, to advanced end-stage pathology. By this time often the only treatment options available become "blunt sword" therapeutics that are non-specific and used primarily for symptom management. In fact, over the last 3 decades there has been a marked decline in the innovation of cardiovascular pharmaceuticals owed partially to the vast complexity of disease presentation and progression [3]. In this dissertation, I will focus on a genetic sarcomeric DCM caused by a mutation in alpha-tropomyosin (Tm). Using novel accurate mouse models as a tool we will define the mechanism by which it leads to disease, investigate how disease severity due to the mutation is modified in an age-dependent manner, and examine what this mechanism could mean in the larger picture of cardiomyopathic disease progression. I hope to convince you that by using accurate models of this DCM at multiple levels of biological complexity to tease out the precise mechanisms of disease we can establish meaningful genotype-phenotype relationships that could lead to the development of specific novel therapeutics.
    • Daily estimation of local evapotranspiration using energy and water balance approaches

      Rim, Chang-Soo.; Gay, Lloyd W.; Lehman, Gordon S.; Guertin, Phillip D.; Contractor, Dinshaw N.; Lansey, Kevin E. (The University of Arizona., 1995)
      Meteorological and environmental (i.e. soil water content) data measured from semiarid watersheds (Lucky Hills and Kendall) during the summer rainy and winter periods were used to study the interrelationships between variables, and to evaluate the effects of variables on the daily estimation of actual evapotranspiration (AET). The relationship between AET and potential evapotranspiration (PET) as a function of an environmental factor was the major consideration of this research. The relationship between AET and PET as a function of soil water content as suggested by Thornthwaite-Mather, Morton and Priestley-Taylor was studied to determine its applicability to the study area. Furthermore, multiple linear regression (MLR) analysis was employed to evaluate the order of importance of the meteorological and soil water factors involved. Finally, the information gained was used for MLR model development. The results of MLR analysis showed that the combined effects of available energy, soil water content and wind speed were responsible for 77 % of the observed variations in AET at Lucky Hills watershed and 70 % at Kendall watershed during the summer rainy period. The analyses also indicated that the combined effects of available energy, vapor pressure deficit and wind speed were responsible for 70 % of the observed variations in AET at Lucky Hills watershed and 72 % at Kendall watershed during the winter period. However, the test results of three different approaches, using the relationships between AET and PET as a function of soil water content indicated some inadequacy. The low correlation between PET, AET, and soil moisture conditions raised some doubt concerning the validity of methods developed elsewhere, and indicated the effects of energy availability on the relationship between PET, AET, and soil water content regardless of the soil water condition. In contrast, agreement between observed AET and estimated AET from MLR models during the summer rainy and winter periods at both watersheds indicated that MLR models can give reasonable estimates of AET, at least under the climatic conditions in which the formulae were developed.
    • Daily Processes in Romantic Relationships

      Curran, Melissa; Totenhagen, Casey J.; Ridley, Carl; Butler, Emily; Serido, Joyce (The University of Arizona., 2011)
      My goal was to examine how experiences and behaviors of individuals and their romantic partners impact relationships on a daily basis. I conducted three separate but empirically and conceptually related studies. For all three papers, the sample was both members of heterosexual romantic relationships (N = 164 couples, 328 individuals) who completed measures each day for seven days. The papers were informed by tenets from interdependence theory and the conservation of resources model. The main purpose of the first paper was to examine a set of relational constructs (i.e., satisfaction, commitment, closeness, conflict, ambivalence, maintenance, and love) to determine which constructs fluctuated daily. All seven relational constructs showed significant within-person variability and were thus appropriate for further daily investigation. With this information, the next step was to understand how to foster positive relationships by examining what daily experiences were associated with those fluctuations. In the second paper I examined whether daily hassles and uplifts were associated with same-day and next-day feelings about the relationship. For same-day effects, I found that hassles were associated with decreased positivity and increased negativity about relationships, whereas uplifts were largely associated with increased positivity. I also found interactions between hassles and uplifts, suggestive of "blunting" effects whereby the positive effects of uplifts were nullified by high levels of hassles. For the next-day effects, I unexpectedly found that uplifts were associated with decreased positive relational constructs on the next day, possibly indicating a return to homeostatic levels. In the third paper, I moved to a more explicit examination of dyadic processes by examining both actor and partner effects and focusing on the role of relational sacrifices, or the daily changes individuals make for the sake of their romantic parnters. I expected that sacrifices would be beneficial for positive relationship quality, particularly on days characterized by low (versus high) hassles. I found support for these expectations with regards to actor, but not partner effects. Overall implications are that the everyday things that individuals experience (e.g., hassles and uplifts) and enact (e.g., sacrifices) are important considerations in fostering less negative and more positive romantic relationships.
    • Daily stressors and memory failures in a naturalistic setting: Findings from the normative aging study

      Almeida, David M.; Neupert, Shevaun D. (The University of Arizona., 2003)
      The role of stress in memory functioning has typically been examined in the laboratory with biological indicators of stress (i.e., stress hormones) and cognitive tests. These studies have generally found a negative association between stress and cognitive performance; that is, people who have higher levels of stress hormones tend to have poorer cognitive performance. The present investigation sought to test this relationship in a naturalistic setting by examining daily stressors and memory failures via a daily diary paradigm. Further, age differences in reactivity (the likelihood of reporting a memory failure when a stressor is experienced) were examined. The primary source of data was the most recent wave of the Normative Aging Study (NAS), a longitudinal study that began in 1961 to examine normal aging processes. One hundred twenty-one adults (69 men, 52 women, age range 44-89) participated in the present study and answered questions regarding their daily stressors and memory failures for eight consecutive evenings. Results from Hierarchical Linear Modeling (HLM) analyses indicated that on days when people experience stressors, they were more likely to also report memory failures compared to stressor-free days. Although age differences in reactivity were not apparent when examining the total frequency of stressors and memory failures, some age differences emerged when looking more specifically at stressor and memory failure type. This study did not directly test the underlying physiological processes of stressors and memory failures, but the results found in a naturalistic setting lend ecological validity to findings that have been previously restricted to the laboratory. Directions for future research (e.g., combining laboratory and naturalistic measures, sampling a wider age range, implementing other sampling techniques, etc.) are discussed.
    • Damage accumulation in random loads.

      Ortiz, Keith; Perng, Horng-Linn.; Wirsching, Paul H.; Kececioglu, Dimitri (The University of Arizona., 1989)
      An equivalent constant amplitude fatigue loading (Miner's stress) is developed for stationary random amplitude loadings. The effects of rainflow cycle counting and fatigue crack closure are included. A method for determining the opening stress in a random loading is also proposed. This research takes a fatigue damage factor approach. The damage factor is defined as the ratio of the wide band rainflow fatigue damage to the equivalent narrow band fatigue damage. The mathematical form of the damage factor equations is derived from theoretical derivations using the analytically tractable local range cycle counting method. Simulations of stationary Gaussian random processes are used to empirically derive the values of certain parameters dependent on the spectral shape for the rainflow cycle counting equations. There are five tasks in this research. (1) A simulation program for generating a Gaussian process has been written and is used to generate random loading histories for this study. (2) A previously proposed rainflow damage factor has been verified and refined with these simulations, without considering crack closure. (3) Using a sinusoidal approximation, the joint probability density functions between peaks, valleys and rises counted by the local range method are derived. (4) The resulting joint probability distributions are used to determine the theoretical damage with crack closure; simulations are again used to calibrate the parameters for rainflow stress cycles. (5) A procedure for finding an equivalent constant fatigue crack opening stress for stationary random loadings is described. An example application of the procedures and equations is given.

      Martinez-Flores, Rene; Haldar, Achintya; Haldar, Achintya; Richard, Ralph; Fleischman, Robert; Contractor, Dunshaw N. (The University of Arizona., 2005)
      Experimental verification of a novel system identification technique that can detect defects at the element level is successfully accomplished. The method can be used for in-service health assessment of real structures without disrupting normal operations. This study conclusively verifies the method.Analytical verification of the proposed algorithm has been successfully completed by the research team at the University of Arizona. Vo and Haldar (2004) experimentally verified the method by conducting tests on fixed-ended and simply supported defect-free and defective beams. The purpose of this research was to validate the method by conducting experiments with more realistic structures. A three-story one-bay steel frame, built to 1/3 scale to fit the experimental facility, was considered. The frame was excited by harmonic or impulsive excitation forces. The transverse acceleration responses were collected using capacitive accelerometers. The angular displacement responses were measured using an autocollimator. The dynamic responses of the frames were collected by a data acquisition system with simultaneous sampling capability. Using only experimentally collected response information and completely ignoring the excitation information, the stiffness of all the structural elements were identified. The method identified the defect-free frame very accurately. Defects, in terms of removing a beam, reducing cross sectional area over a small segment of a beam, and cutting notches in a beam, were introduced. The method correctly identified the defect location in all cases. Additional sensors were placed around the location of the defect in an effort to identify the defect spot more accurately. The proposed method also successfully identified defect with improved accuracy. To increase the implementation potential of the proposed method, the defect-free and defective frames are then identified using limited response information. A two-stage Kalman filter-based approach is used. It is denoted as Generalized Iterative Least Square Extended Kalman Filter with Unknown Input (GILS-EKF-UI) method. A sub-structure approach is used for this purpose. The GILS-EKF-UI method also identified the state of the structure using only limited response information. As expected, in this case the error in the identification goes up as less information is used. However, the error is much smaller than other methods currently available in the literature, even when input excitation was used for the identification purpose. The method is very robust and can identify defects caused by different types of loadings. The method can be used as a nondestructive defect assessment technique for structures.
    • Damage Detection and Characterization in Plate Like Structures

      Kundu, Tribikram; Kumar Yadav, Susheel; Kundu, Tribikram; Banerjee, Sourav; Frantziskonis, George; Lansey, Kevin (The University of Arizona., 2013)
      Large civil infrastructure systems all over the world have become an integral part of our civilization. The inspection and maintenance of these structures for public safety is a difficult task. The assessment of integrity of such huge structures due to local damages is even more difficult to deal with. The conventional inspections are performed manually, generally by visual examination and sometimes by more advanced techniques like ultrasonic, electromagnetic and fiber optic techniques. These inspections involve human interventions, depend on individual inspector's experience, and are time consuming. Such inspection methods may not be very useful for real time health assessment of a structure in service and as a result are not very helpful in preventing any disastrous situation through early warning. Therefore, it is very important to look for a comprehensive strategy of global integrity monitoring infused with information about local damages in the structure. For local damage assessment the current state of the health monitoring technology lacks a generalized and definitive approach to the identification and localization of damage. In past decades several signal processing tools have been used for solving different health monitoring problems but the commutability of the tools between different problems has been restricted. Fundamental reasons for this shortcoming have never been investigated in detail. In this dissertation an investigation has been carried out employing almost all promising feature extraction tools on a representative problem - a plate with rivet holes. The problem considered has radial cracks around rivet holes in a joint panel of a steel truss bridge. Such defects are very difficult to detect. Although well established, Lamb wave based nondestructive evaluation techniques are revisited and new tools are developed to address this issue. Simulation of the scattered ultrasonic wave field is carried out using the finite element method. This ultrasonic wave field is further analyzed to evaluate the integrity of the structure using various feature extraction (FE) techniques. Joint time-frequency-energy representation is obtained from ultrasonic signals recorded at various locations on the plate (joint panel) and used to extract damage sensitive features. Those features were then used to formulate a new Damage Parameter (DP) for better visualization of the crack. Results are shown to demonstrate the comparative effectiveness of these techniques. It is concluded that any particular FE technique cannot detect all possible sizes and orientations of the crack. It is suggested that the statistical occurrence and pattern of the crack must be visualized through a few selective FE techniques in a sequence. Modeling of the wave scattering phenomenon by conventional numerical techniques such as finite element method requires very fine mesh at high frequencies necessitating heavy computational power. Distributed point source method (DPSM) which is a recently developed semi-analytical technique, is applied to model the scattering of ultrasonic wave field on representative problem geometries and the results are used to diagnose structural damages. DPSM is a newly developed robust mesh-free technique for simulating ultrasonic, electrostatic and electromagnetic field problems. In most of the previous studies the DPSM technique has been applied to model two dimensional surface geometries and relatively simple three dimensional scatterer geometries. It has been very difficult to perform the wave scattering analysis for very complex three-dimensional geometries. This technique has been extended to model wave scattering in an arbitrary geometry. The simulation has been carried out with and without the presence of cracks near the rivet holes.

      Kundu, Tribikram; SHELKE, AMIT BALASAHEB; Deymier, Pierre; Frantziskonis, George; Kemeny, John (The University of Arizona., 2011)
      This dissertation deals with analytical and experimental investigations of a number of distinct problems related to defect detection in solid structures. All these problems have applications in structural health monitoring (SHM) and nondestructive evaluation (NDE). With this broad goal in mind the mode selective excitation and detection scheme for guided Lamb waves in isotropic and anisotropic plates has been investigated. Change in the time of flight technique is applied to the detection of inherent variations in material properties. Symmetric and anti-symmetric modes are resolved with orthogonal phase difference and homodyning. Noncontact Electro-Magnetic Acoustic Transducers (EMATs) are developed for generation and detection of Lamb waves. Its interaction with circular defects having dimensions comparable to the wavelength is investigated. Short time Fourier Transform and Hilbert Transform are applied for feature detection and identification of localization of damages. Distributed point source method (DPSM) is applied to model the scattering of acoustical wave field and to study the stress singularity in penny shaped cracks. Both experimental and numerical investigations are performed in the framework of structural health monitoring and non destructive evaluation for gaining insight in damage initiation and progression in materials.
    • Damages in Transparent Materials by Ultrashort Laser Pulse

      Liang, Rongguang; Cheng, Weibo; Norwood, Robert A.; Jiang, Shibin (The University of Arizona., 2021)
      Ultrashort lasers that generate laser pulses down to picosecond and femtosecond range have advanced over the past decade from delicate lab systems to robust industry machines. The availability of stable ultrashort laser systems opens up a wide range of exciting applications from transparent material processing such as waveguide fabrication to bio applications such as cell ablation. The fundamental aspects of ultrashort pulse material interaction are still remaining an active research topic. Here, we focus on the investigation of how ultrashort pulses, particularly picosecond laser pulses, interact with the bulk of transparent materials such as borosilicate glass, fused silica and sapphire. We investigate damage inside the bulk of borosilicate glass, fused silica, and sapphire by a single shot of IR picosecond laser pulse experimentally. In our experiments, extended bulk damage tracks with an aspect ratio of about 1:10 are generated. The damage morphology in each of the material is found to be different. We also numerically model pulse propagation and electron dynamics in borosilicate glass and fused silica in both picosecond and femtosecond regimes. The shape and size of the damage sites are shown to correspond to an electron cloud with density of about 10^20 cm^-3. The underlying mechanism of electron generation by multiphoton ionization and avalanche ionization is numerically investigated. The multiphoton ionization rate and avalanche ionization rate are determined by fitting experimental results. The relative role of multiphoton ionization and avalanche ionization are numerically studied and the percentage of electron contribution from each ionization channels are investigated.
    • Dan Coleman’s String Quartets, With a Performance Guide for the Quartetto ricercare and Analysis of Its Relationship to Mozart’s String Quartet K. 464 and Beethoven’s String Quartet Op. 18, No. 5

      Kantor, Timothy A.; Kim, Yoon Kyung; Brobeck, John T.; Buchholz, Theodore O. (The University of Arizona., 2021)
      This document explores the relationship between Dan Coleman’s Quartetto ricercare, Beethoven’s String Quartet Op. 18, No. 5, and Mozart’s String Quartet K. 464, and provides a detailed performance guide for Coleman’s quartet. Coleman states that he used K. 464 and Op. 18, No. 5 as inspirations for his work, and this study identifies similarities in form, texture, structure, and melody between the three works. This type of comparative analysis enhances our understanding of Coleman’s compositional approach and style and thus can lead to more effective and authentic performances of this quartet. The Quartetto ricercare provides a bridge from traditional classical quartets to more modern repertoire and also encourages another way of understanding the formal clarities of traditional classical quartets through a twenty-first-century composer’s musical language.
    • The dance of time: The evolution of the structural aesthetics of the prepared piano works of John Cage.

      Rhodes, Carol Shirley.; Fan, Paula; Woods, Rex; Fernandez, Nohema (The University of Arizona., 1995)
      John Cage, (1912-1992) pioneer in new music, innovator, inventor of the happening and philosopher, writer and artist was one of the most creative forces of the twentieth century. His earliest works were 25-tone contrapuntal compositions. He later developed a strong interest in writing for percussion ensembles and collected instruments that were both found and made. He conducted his own percussion orchestras and discovered that they were the answer to his philosophy of the sounds of the future. He considered percussion music the transition from keyboard-influenced music to music which allowed for all sounds and silences. From 1939-1951 John Cage composed several works for prepared piano that used time as a structural device. Many of these works were written for the dance in collaboration with Merce Cunningham. This document addresses the historical significance of these works and relates Time to other areas that influenced Cage--including Zen and the Dance. This document provides descriptive analyses of Bacchanale, Music for Marcel Duchamp and selected Sonatas from the Sonatas and Interludes. To this writer's knowledge there have not yet been any analyses of Bacchanale or Music for Marcel Duchamp. The analyses reveal Cage's primary structural techniques in which he uses duration of spaces of time. Time lengths and the square root method appear to be the most important. These techniques first appeared in Imaginary Landscape #1 and First Construction in Metal--both dating from 1939. A brief description of all his prepared piano works is included to demonstrate Cage's commitment to rhythmic structuring. All of these works have been studied by this writer and several have been performed in concert by this writer. These include: Music for Marcel Duchamp, Primitive, For a Valentine Out of Season, A Room, Prelude for Meditation, Amores (Movements I and IV), and selected Sonatas from Sonatas and Interludes. A section has been included which explains the nature of materials used for preparations and their timbral effects. A Conclusion is provided demonstrating that Cage chose rhythm over harmony to structure his music. This information is drawn from the influences on Cage, his early percussion works, procedures employed in the percussion works and transferred to the prepared piano and the influence of dancers and Oriental philosophy. An Appendix is included with charts of the Sonatas. A Bibliography which shows the references consulted is included.
    • Dancing with dragons: Social construction of technology during times of resource stress

      Rhoades, Gary; Harris, La Verne Abe (The University of Arizona., 2004)
      Today, struggles of higher education--technological change and organizational change--are like dragons--somewhat unpredictable, mystical, altering everyone and everything in its path. Managing technology and the restructuring of the organization is like dancing with dragons. Within the science and technology studies literature, scholars have developed sociotechnological perspectives that are useful for addressing the framing of technology during these fiscally-challenging times for universities. A close look at this literature reveals that Weibe Bijker and Robert J. Thomas have deemed technology worthy of sociological inquiry. These scholars believe that technical artifacts are not neutral, but constructed by older technologies, economic choice, politics, and social factors. This study examines social perceptions of technical artifacts during times of resource stress, specifically how it affects academic support technologists. It addresses the forces that drive and shape electrophotography processes and streaming media in an academic setting. I hope to contribute to the body of knowledge by evaluating electrophotography and streaming media as technical artifacts in higher education, identifying their adoption, implementation, and embeddedness in an organization. By exposing the deep relationship between a technical system and a social system, my intent is to create a link between the philosophy of technology as an intellectual construct and the social framing of a technical artifact.
    • Dane Rudhyar's Transmutation of 1976: Transformative Use of the Descending and Ascending Harmonic Series as a Compositional Device

      Milbauer, John; Suescun Valencia, Katherine; Zdechlik, Lisa; Gibson, Tannis (The University of Arizona., 2018)
      The French-American composer Dane Rudhyar (1895-1985) uses the harmonic series in a unique manner to create dissonant harmonies. His method incorporates the principles of order, interaction, and interpenetration whereby the fundamental pitches and shared partials of two interrelated harmonic series are made explicit. He uses both the ascending and the descending versions of the harmonic series as a unifying factor that substantiates his metaphysical conception of the harmonic series and his notion of the piano as a collection of gongs capable of powerful resonance. Rudhyar’s mature piece, Transmutation: Tone-Sequence in Seven Movements for the Piano (1976) exhibits the use of such interpenetrated harmonies particularly in Movements 3, 6, and 7. The scrutiny and analysis of these movements in this document reveal compelling implementations of interpenetrated dissonant harmonies as generators of the melodic and harmonic framework, gong-like textures, climaxes, and endings.
    • Daniel Moe's choral works with brass accompaniment.

      Skones, Maurice; Wordelman, Peter Dale.; Knott, Josef; Wilson, Gary; Day, Larry; Fan, Paula (The University of Arizona., 1991)
      Many twentieth-century American composers have written works for chorus with brass accompaniment. This study focuses on the compositional techniques Daniel Moe applies to his brass and choral works and the musical and religious influences that aided in the development of Moe's composition language. Eight of Daniel Moe's works for brass and chorus are analyzed to determine the influences and techniques employed in his style of composition. The analysis reveals: the choir and brass remain independent and never dominate each other, the brass consistently play at their loudest dynamic levels while the choir is not singing, the heights of the choral phrases are unaccompanied, and final cadences are voiced with the highest pitches in the choral writing which allows an equality of forces. As a conductor, Moe has encountered many Venetian and contemporary works for brass and chorus that had a direct result on the techniques he applied to his brass and choral works. The evidence suggests that Daniel Moe's choral works with brass accompaniment involve a combination of twentieth-century harmonies and rhythms, Biblical and liturgical texts influenced by his strong Lutheran heritage, and a style of transparent scoring which carefully integrates the brass instruments into the overall texture of his compositions.
    • Daoxuan's vision of Jetavana: Imagining a utopian monastery in early Tang

      Gimello, Robert M.; Tan, Ai-Choo Zhi-Hui (The University of Arizona., 2002)
      This study provides the first complete translation into a Western language of a fairly unknown but yet important Chinese work, titled the Zhong tianzhu shewei guo qiyuan si tujing (Illustrated Scripture of Jetavana Monastery in the Sravasti Kingdom in Central India), which describes Jetavana Monastery through textual and diagrammatic representations. To understand better the background of the text, I first discussed the life and times of its author Daoxuan (596-667 C.E.), an important figure in the history of Chinese Buddhism particularly in relation to the formation of Chinese Buddhist monasticism. I also explored the scriptural and historical records which might have served as sources for Daoxuan's own portrayal for the history and myth of the Jetavana Monastery. Finally, I offered a synoptic analysis of the text itself. The significance of Daoxuan's representation of Jetavana lies precisely in its function as a blueprint of a utopian Buddhist monastery for the early Tang Buddhists rather than as a faithful reconstruction of the historical site in India. The spatial complex and architectural design of the monastery visibly appropriates the symmetrical structure of the Chang'an City. The monastic compound is spatially organized into specialized cloisters and halls for the Buddha, the various ranks of Buddhist saints, the immortals and heavenly beings, the different commoners and laity who are visiting or living in the monastery. The text interfuses fact and fantasy, historical reality and religious vision; its description of extraordinary artifacts, divine creatures, and plants certainly mirror the Buddhist paradisal representations in texts and art. It is equally important to realize that such imagery is also derived in part from the exotic products, cultural curiosities, fantastical creatures imported from foreign lands that pervaded the markets of the cosmopolitan Chang'an in the Tang. Further investigation in my study of Daoxuan's portrayal of Jetavana suggests that the influence of this text is not only found in the Chinese monastic setting and Dunhuang cave art in the later periods, but its impact is also visible in Japanese Buddhism.

      Aus, Hans Magnus, 1941- (The University of Arizona., 1971)

      Goltz, John Ralph, 1943- (The University of Arizona., 1970)
    • Darius Milhuad's "Cantate pour l'inauguration du Musee de l'Homme," op. 164: An Examination of Performance Practices and Contemporary Solutions

      Chamberlain, Bruce B.; Aprahamian, Lucik; Chamberlain, Bruce B.; Brobeck, John T.; Schauer, Elizabeth R. (The University of Arizona., 2010)
      The purpose of this study is to demonstrate that Cantate pour l'inauguration du Musee de l'Homme, op. 164, Darius Milhaud's musical setting of a poem by Robert Desnos, can be made accessible to choral ensembles by employing a choir in addition to the vocal quartet traditionally used in performances, thereby reflecting more accurately the poet's concept of the work, even though these indications are not present in Milhaud's musical score.In order to provide conductors and scholars with the tools to understand and perform Cantate pour l'inauguration du Musee de l'Homme, in this document I describe the work, analyze its poetic and musical structure, trace its performance history and practice, and suggest ways to realize Desnos's original concept of the work. I also present some possible explanations as to why Milhaud did not include any indication for vocal performance forces in Cantate pour l'inauguration du Musee de l'Homme, and why he himself performed the work with vocal quartet and not with choir. Finally, I propose that employing a choir in addition to soloists for Cantate pour l'inauguration du Musee de l'Homme is consistent with the performance history of Milhaud's other vocal quartet works of similar style.
    • Dark Laughter: Liminal Sins in Quevedo's Entremeses

      Yancey, Jason Edward; Williamsen, Amy R.; Williamsen, Amy R.; Fiore, Robert L.; Kinkade, Richard P. (The University of Arizona., 2009)
      This dissertation investigates two areas rarely treated in Early Modern studies. First, it explores the origins, functions and importance of the entremes as a performance genre historically relegated to what Victor Turner has called the "liminal" spaces of social and scholarly discourse. These marginalized places of ambiguity in between one space and another provide the artist with a less restrictive creative setting in which to explore the otherwise difficult and even unmentionable social themes. Literally placed in between acts of the comedia performance experience, as well as chronologically placed in between the medieval pageant theater and the emerging early modern theater houses, the entremes serves as an entertaining breed of performance monster, building upon a thematic foundation "betwixt and between" acceptable and objectionable forms of theater.Second, the dissertation examines in detail the 12 lesser-known entremeses of Francisco de Quevedo as examples of liminality in the development of early modern theater practices. Specifically, the study analyzes these theater pieces as they subscribe to three categories of cardinal sin: desires of the ego (pride, wrath and sloth); desires of ownership (greed and envy); and desires of the body (lust and gluttony).As a result, this work hopes to demonstrate the aesthetic value of the interlude and the ways in which Quevedo's various manifestations of this liminal genre, based heavily on the construct of sin, both complement and contradict the model of the entremes as established by his predecessors.