ASU Electronic Theses and Dissertations
This collection includes most of the ASU Theses and Dissertations from 2011 to present. ASU Theses and Dissertations are available in downloadable PDF format; however, a small percentage of items are under embargo. Information about the dissertations/theses includes degree information, committee members, an abstract, supporting data or media.
In addition to the electronic theses found in the ASU Digital Repository, ASU Theses and Dissertations can be found in the ASU Library Catalog.
Dissertations and Theses granted by Arizona State University are archived and made available through a joint effort of the ASU Graduate College and the ASU Libraries. For more information or questions about this collection contact or visit the Digital Repository ETD Library Guide or contact the ASU Graduate College at gradformat@asu.edu.
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- All Subjects: Physiology
- Language: English
Description
The elaborate signals of animals are often costly to produce and maintain, thus communicating reliable information about the quality of an individual to potential mates or competitors. The properties of the sensory systems that receive signals can drive the evolution of these signals and shape their form and function. However, relatively little is known about the ecological and physiological constraints that may influence the development and maintenance of sensory systems. In the house finch (Carpodacus mexicanus) and many other bird species, carotenoid pigments are used to create colorful sexually selected displays, and their expression is limited by health and dietary access to carotenoids. Carotenoids also accumulate in the avian retina, protecting it from photodamage and tuning color vision. Analogous to plumage carotenoid accumulation, I hypothesized that avian vision is subject to environmental and physiological constraints imposed by the acquisition and allocation of carotenoids. To test this hypothesis, I carried out a series of field and captive studies of the house finch to assess natural variation in and correlates of retinal carotenoid accumulation and to experimentally investigate the effects of dietary carotenoid availability, immune activation, and light exposure on retinal carotenoid accumulation. Moreover, through dietary manipulations of retinal carotenoid accumulation, I tested the impacts of carotenoid accumulation on visually mediated foraging and mate choice behaviors. My results indicate that avian retinal carotenoid accumulation is variable and significantly influenced by dietary carotenoid availability and immune system activity. Behavioral studies suggest that retinal carotenoid accumulation influences visual foraging performance and mediates a trade-off between color discrimination and photoreceptor sensitivity under dim-light conditions. Retinal accumulation did not influence female choice for male carotenoid-based coloration, indicating that a direct link between retinal accumulation and sexual selection for coloration is unlikely. However, retinal carotenoid accumulation in males was positively correlated with their plumage coloration. Thus, carotenoid-mediated visual health and performance or may be part of the information encoded in sexually selected coloration.
ContributorsToomey, Matthew (Author) / McGraw, Kevin J. (Thesis advisor) / Deviche, Pierre (Committee member) / Smith, Brian (Committee member) / Rutowski, Ronald (Committee member) / Verrelli, Brian (Committee member) / Arizona State University (Publisher)
Created2011
Description
The purpose of this project is to introduce Bryan Johanson's composition for two guitars, 13 Ways of Looking at 12 Strings, and present an authoritative recording appropriate for publishing. This fifty-minute piece represents a fascinating suite in thirteen movements. The author of this project performed both guitar parts, recorded them separately in a music studio, then mixed them together into one recording. This document focuses on the critical investigation and description of the piece with a brief theoretical analysis, a discussion of performance difficulties, and guitar preparation. The composer approved the use and the scope of this project. Bryan Johanson is one of the leading contemporary composers for the guitar today. 13 Ways of Looking at 12 Strings is a unique guitar dictionary that takes us from Bach to Hendrix and highlights the unique capabilities of the instrument. It utilizes encoded messages, glass slides, metal mutes, explosive "riffs," rhythmic propulsion, improvisation, percussion, fugual writing, and much more. It has a great potential to make the classical guitar attractive to wider audiences, not limited only to guitarists and musicians. The main resources employed in researching this document are existing recordings of Johanson's other compositions and documentation of his personal views and ideas. This written document uses the composer's prolific and eclectic compositional output in order to draw conclusions and trace motifs. This project is a significant and original contribution in expanding the guitar's repertoire, and it uniquely contributes to bringing forth a significant piece of music.
ContributorsSavic, Nenad (Author) / Koonce, Frank (Thesis advisor) / Rotaru, Catalin (Committee member) / McLin, Katherine (Committee member) / Feisst, Sabine (Committee member) / Landschoot, Thomas (Committee member) / Arizona State University (Publisher)
Created2011
Description
This thesis explores the ways two contemporary artists engage the archive to challenge ideas calcified through visual culture. Steven Yazzie and Lorna Simpson respond to constructions of history through art making strategies and practices. Yazzie's photogravure Tsosido Sweep Dancer (2009) presents a carefully constructed image of a ceremony drawing on symbols of Indianness to provoke a critical dialogue that questions the role of the American Indian stereotype in the United States imaginary. Simpson's Counting (1991) is a multilayered work that juxtaposes text and image to address the capriciousness of memory, power and other issues found at the intersection of race and gender. These photography-based works draw on the histories of ethnographic and criminal photography to deconstruct the same knowledge that photography helped to construct. Throughout the thesis I examine the relationship of the photographic archive to colonial histories by considering whose history is represented through photography. These thoughtful and challenging artworks contribute to a growing body of work that proposes new narratives drawing on embodied knowledge and experience to create a counter-archive.
ContributorsWaitoller, Lekha Hileman (Author) / Malagamba-Ansótegui, Amelia (Thesis advisor) / Lineberry, Heather S (Committee member) / Mesch, Ulrike C (Committee member) / Arizona State University (Publisher)
Created2011
Description
Drawing from Foucault's notion of heterotopias, my dissertation identifies and examines three distinct but related events that resignified (re-imagined) Chile during 2010, the year of its Bicentenary, namely: the Rescue of the 33 Miners trapped in the San José mine, the Chilean Military Parade performed in celebration of Chilean Independence, and the Mapuche Hunger Strike of 32 indigenous people accused of terrorism by the Chilean State. My central hypothesis states that these three events constitute heterotopias with strong performative components that, by enacting a utopian and a dystopian nation, denounce the flaws of Chilean society. I understand heterotopias as those recursive systems that invert, perfect or contest the society they mirror. In other words: heterotopias are discursive constructions and material manifestations of social relations that dispute, support, or distort cultural assumptions, structures, and practices currently operating in the representational spaces of a given society. In addition to following the six heterotopological principles formulated by Foucault, these case studies have performance as the central constituent that defines their specificity and brings the heterotopias into existence. Due to the performative nature of these heterotopias, I have come to call them performance heterotopias, that is, sets of behaviors that enact utopias in the historical world, the place in which we live, the site in which "the erosion of our lives, our time and our history occurs," as Foucault puts it. Here, performance would act as the interface, the point of interaction, and suture between the conceived, the perceived and the representational spaces each heterotopia articulates. Thus, a performance heterotopia would be a particular type of heterotopia which is enacted through performance. A relevant aspect that emerged from my research is that heterotopic places not only mirror, contest, and compensate their own host society, but also refer to, and intersect with other contemporaneous heterotopias enacted in that society. In my conclusion I suggest that such interactions also happen between heterotopias that emerge in different countries and cultures. If so, the mapping of utopias enacted in the macro socio geographies of Latin American countries could offer new perspectives to understand the sociopolitical processes that are underway in the region.
ContributorsBravo Goldsmith, Néstor (Author) / Underiner, Tamara (Thesis advisor) / Melo, Carla (Committee member) / Foster, David W (Committee member) / Arizona State University (Publisher)
Created2011
Description
Traumas are moments which disrupt a way of being, often involving death or injury and a period of recovery for its survivors. They can be personal, experienced by an individual, or collective, experienced by a group of individuals, such as a family. Others, like the bombing of Hiroshima, impact much larger communities, such as an entire town, an entire nation, or even the world. These national traumas often include large-scale death or injury and impact the lives of thousands. In addition to their immediate physical and material affects (mortalities, economic impact, creating a need for aid), these events shatter not only an individual's sense of well- being, but also larger notions of national identity, stability and security. In many cases, they also reveal the limits of prevailing concepts of national cohesiveness, citizenship and belonging while often simultaneously upholding or reconstructing newly problematic concepts of national cohesion. Traumas are documented and grappled with through various media, including literature, poetry, art, photography, and journalism. This dissertation, "Performing Nation, Performing Trauma: Theatre and Performance after September 11th, Hurricane Katrina and the Peruvian Dirty War" examines how theatre and performance are utilized to respond to, document, memorialize and represent national traumas resulting from such historical crises as the Peruvian Dirty Wars, Hurricane Katrina, and September 11th, as well as how they resist dominant narratives that construct national traumas as such. These traumas are relived and expressed through performance perhaps precisely because the members of a nation (consciously or subconsciously) recognize that nation is also performed. This dissertation focuses on both the content of and the reception of these performances and the particular implications that performances about national traumas hold for theatre critics/scholars, performance practitioners and audience members (those immediately connected and not so obviously connected to the event).
ContributorsNigh, Katherine Jean (Author) / Underiner, Tamara (Thesis advisor) / Woodson, Stephani (Committee member) / Whitaker, Matthew C. (Committee member) / Arizona State University (Publisher)
Created2011
Description
ABSTRACT The purpose of this study was to determine the energy cost of four modes of resistance training (push-ups, pull-ups, curl-ups, lunges). Twelve well trained men aged 23.6 (SD=2.84) years were recruited to participate in the study. Each of the 12 men completed three trials of each of the four exercises on one visit to the laboratory lasting slightly over one hour (M=72 min, SD=5.9 min). The oxygen consumption of the men was monitored constantly throughout the trial and data was recorded every five seconds. Mean VO2 values were calculated for each exercise. The values for push-ups (M=11.57 ml/kg/min, SD=1.99), curl-ups (M=10.99 ml/kg/min, SD=1.48), pull-ups (M=10.87 ml/kg/min, SD=2.51), and lunges (M=14.18 ml/kg/min, SD=1.78) were converted to METs (Metabolic Equivalents). The MET values (3.31, 3.14, 3.11, and 4.05 respectively) all fall within the range of moderate intensity activity. The findings of this study show that a single set of any of the above exercises will qualify as a moderate intensity activity and can be used to meet recommendations on daily physical activity.
ContributorsVezina, Jesse (Author) / Ainsworth, Barbara (Thesis advisor) / Campbell, Kathryn (Committee member) / Woodruff, Larry (Committee member) / Arizona State University (Publisher)
Created2011
Description
Bisexuality is a unique kind of sexual identity, as a gray area between heterosexuality and homosexuality. The piece You made up the Story and I Played with all the Parts explores bisexuality as a lived artistic experience based on my sexual journey within a society that advocates heterosexuality. The piece includes movement phrases and text derived from conversations with intimate partners, characters based on former partners, storytelling, a 1950s-style sex education video parody, and audience participation via dialogue. The creation of movement and dialogue manipulated heteronormative social stigmas into a canny social acceptance of bisexuality. The multifaceted nature of the piece provokes viewers to consider how sexuality is constructed socially through my own interpretation. As a result, the work suggests that bisexuality is a legitimate sexual identity and represents a culture within American society.
ContributorsBedford, Crystal (Author) / Corey, Frederick (Thesis advisor) / Dove, Simon (Thesis advisor) / Jackson, Naomi (Committee member) / Arizona State University (Publisher)
Created2011
Description
Like individual organisms, complex social groups are able to maintain predictable trajectories of growth, from initial colony foundation to mature reproductively capable units. They do so while simultaneously responding flexibly to variation in nutrient availability and intake. Leafcutter ant colonies function as tri-trophic systems, in which the ants harvest vegetation to grow a fungus that, in turn, serves as food for the colony. Fungal growth rates and colony worker production are interdependent, regulated by nutritional and behavioral feedbacks. Fungal growth and quality are directly affected by worker foraging decisions, while worker production is, in turn, dependent on the amount and condition of the fungus. In this dissertation, I first characterized the growth relationship between the workers and the fungus of the desert leafcutter ant Acromyrmex versicolor during early stages of colony development, from colony foundation by groups of queens through the beginnings of exponential growth. I found that this relationship undergoes a period of slow growth and instability when workers first emerge, and then becomes allometrically positive. I then evaluated how mass and element ratios of resources collected by the ants are translated into fungus and worker population growth, and refuse, finding that colony digestive efficiency is comparable to digestive efficiencies of other herbivorous insects and ruminants. To test how colonies behaviorally respond to perturbations of the fungus garden, I quantified activity levels and task performance of workers in colonies with either supplemented or diminished fungus gardens, and found that colonies adjusted activity and task allocation in response to the fungus garden size. Finally, to identify possible forms of nutrient limitation, I measured how colony performance was affected by changes in the relative amounts of carbohydrates, protein, and phosphorus available in the resources used to grow the fungus garden. From this experiment, I concluded that colony growth is primarily carbohydrate-limited.
ContributorsClark, Rebecca, 1981- (Author) / Fewell, Jennifer H (Thesis advisor) / Mueller, Ulrich (Committee member) / Liebig, Juergen (Committee member) / Elser, James (Committee member) / Harrison, Jon (Committee member) / Arizona State University (Publisher)
Created2011
Description
One hypothesis for the small size of insects relative to vertebrates, and the existence of giant fossil insects, is that atmospheric oxygen levels have constrained body sizes because oxygen delivery would be unable to match the needs of metabolically active tissues in larger insects. This study tested whether oxygen delivery becomes more challenging for larger insects by measuring the oxygen-sensitivity of flight metabolic rates and behavior during hovering for 11 different species of dragonflies that range in mass by an order of magnitude. Animals were flown in 7 different oxygen concentrations ranging from 30% to 2.5% to assess the sensitivity of their behavior and flight metabolic rates to oxygen. I also assessed the oxygen-sensitivity of flight in low-density air (nitrogen replaced with helium), to increase the metabolic demands of hovering flight. Lowered atmosphere densities did induce higher metabolic rates. Flight behaviors but not flight metabolic rates were highly oxygen-sensitive. A significant interaction between oxygen and mass was found for total flight time, with larger dragonflies varying flight time more in response to atmospheric oxygen. This study provides some support for the hypothesis that larger insects are more challenged in oxygen delivery, as predicted by the oxygen limitation hypothesis for insect gigantism in the Paleozoic.
ContributorsHenry, Joanna Randyl (Author) / Harrison, Jon F. (Thesis advisor) / Kaiser, Alexander (Committee member) / Rutowski, Ronald L (Committee member) / Arizona State University (Publisher)
Created2011
Description
Research has shown that the ability to smell is the most direct sense an individual can experience. With every breath a person takes, the brain recognizes thousands of molecules and makes connections with our memories to determine their composition. With the amount of research looking into how and why we smell, researchers still have little understanding of how the nose and brain process an aroma, and how emotional and physical behavior is impacted. This research focused on the affects smell has on a caregiver in a simulated Emergency Department setting located in the SimET of Banner Good Samaritan Medical Center in Phoenix, Arizona. The study asked each participant to care for a programmed mannequin, or "patient", while performing simple computer-based tasks, including memory and recall, multi-tasking, and mood-mapping to gauge physical and mental performance. Three different aromatic environments were then introduced through diffusion and indirect inhalation near the participants' task space: 1) a control (no smell), 2) an odor (simulated dirty feet), and 3) an aroma (one of four true essential oils plus a current odor-eliminating compound used in many U.S. Emergency Departments). This study was meant to produce a stressful environment by leading the caregiver to stay in constant movement throughout the study through timed tasks, uncooperative equipment, and a needy "patient". The goal of this research was to determine if smells, and of what form of pleasantness and repulsiveness, can have an effect on the physical and mental performance of emergency caregivers. Findings from this study indicated that the "odor eliminating" method currently used in typical Emergency Departments, coffee grounds, is more problematic than helpful, and the introduction of true essential oils may not only reduce stress, but increase efficiency and, in turn, job satisfaction.
ContributorsClark, Carina M (Author) / Bernardi, Jose (Thesis advisor) / Heywood, William (Committee member) / Watts, Richard (Committee member) / Rosso, Rachel (Committee member) / Arizona State University (Publisher)
Created2013