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- Creators: Barrett, The Honors College
Description
This study analyzes syllabi for first-year college composition courses and interview responses to examine how the choices made by instructors affect online course design. Using the Syllabus Assessment Instrument designed by Madson, Melchert and Whipp (2004), this dissertation looks specifically at attendance and participation policies, course behavior policies, contact information, required material choices, course organization decisions and tool decisions to reveal how instructors do or do not accommodate online class pedagogies. This study finds that the choices instructors make in syllabus design provide significant information about the overall online course design itself. Using Selber's multiliteracies as a frame for understanding the choices made by instructors, this study finds that instructors focus primarily on functional literacies in their discourses and in the way they communicate their choices to students. Instructors vary in how they inform students of the mechanics of how to interact with tools, how often to interact with the online course, and how to use the tools within the online course. While these aspects of online courses are important, focusing on these aspects of the online course overshadows alternative perspectives on tool use that could encourage critical reflection by both instructors and students. To help instructors and departments design more effective syllabi and courses, this study raises questions and offers observations about how instructors communicate policies and how they understand these policies and pedagogies in online courses. In providing general guidelines for syllabus design and course design, this study will help writing instructors and composition programs better understand the significance of the choices they make in online course design.
ContributorsPfannenstiel, Amber Nicole (Author) / Goggin, Peter (Thesis advisor) / Daly Goggin, Maureen (Committee member) / Hayes, Elisabeth (Committee member) / Arizona State University (Publisher)
Created2013
Description
Rhetorical theorist Kenneth Burke has asserted the significance of paying equal, if not more attention to, propagandist rhetoric, arguing that "there are other ways of burning books on the pyre-and the favorite method of the hasty reviewer is to deprive himself and his readers by inattention." Despite Burke's exhortation, attention to white supremacist discourse has been relatively meager. Historians Clive Webb and Charles Eagles have called for further research on white supremacy arguing that attention to white supremacist discourse is important both to fully understand and appreciate pro-civil rights rhetoric in context and to develop a more complex understanding of white supremacist rhetoric. This thesis provides a close examination of the literature and rhetoric of two white supremacist organizations: the Citizens' Council, an organization that sprang up in response to the 1954 landmark decision of Brown v. Board of Education and Stromfront.org, a global online forum community that hosts space for supporters of white supremacy. Memory scholars Barbie Zelizer, John Bodnar, and Stephen Brown note the usability of memory to shape social, political, and cultural aspects of society and the potential implications of such shaping. Drawing from this scholarship, the analysis of these texts focuses specifically on the rhetorical shaping of memory as a vehicle to promote white supremacy. Through an analysis of the Citizens' Council's use of historical events, national figures and cultural stereotypes, Chapter 1 explicates the organization's attempt to form a memorial narrative that worked to promote political goals, create a sense of solidarity through resistance, and indoctrinate the youth in the ideology of white supremacy. Chapter 2 examines the rhetorical use of memory on Stormfront and explains how the website capitalizes upon the wide reaching global impact of World War II to construct a memorial narrative that can be accessed by a global audience of white supremacists. Ultimately, this thesis offers a focused review of the rhetorical signatures of two white supremacist groups with the aim of combating contemporary instantiations of racist discourse.
ContributorsLadenburg, Kenneth (Author) / Ore, Ersula (Thesis advisor) / Miller, Keith (Committee member) / Bebout, Lee (Committee member) / Arizona State University (Publisher)
Created2013
Description
This research conducts two methods of rhetorical analysis of State of the Union Addresses: 1. Computational linguistic analysis of all State of the Union Addresses from 1790-2007, and 2. Close-readings and rhetorical analyses of two addresses: one by President Truman and one by President Reagan. This research shows the following key findings: 1. I am able to see general shifts in the authors' approaches to the State of the Union Address through historical computational analyses of the content of all speeches, and 2. Through close readings, I can understand the impact of the author's ethos and the historical context on the addresses, something that would not be readily revealed in a computational analysis. This study starts with a historical computational linguistic analysis of all State of the Union Addresses between 1790 and 2007. The study follows with close-readings of two State of the Union Addresses from the early and late Cold War period in-context: 1. Harry Truman's 1951 Address and 2. Ronald Reagan's 1986 Address. The main conclusions drawn from this research are that close-readings of State of the Union Addresses cannot be replaced by computational analyses, but can work in tandem with computerized text analysis to reveal shifts in rhetorical and topical features. This paper argues that there must be more close analyses in coordination with large-scale text analysis in order to understand the complexities of rhetorical situations.
ContributorsWegner, Peter (Author) / Goggin, Maureen (Thesis advisor) / Boyd, Patricia (Committee member) / Goggin, Peter (Committee member) / Arizona State University (Publisher)
Created2013
Description
Aluminum alloys and their composites are attractive materials for applications requiring high strength-to-weight ratios and reasonable cost. Many of these applications, such as those in the aerospace industry, undergo fatigue loading. An understanding of the microstructural damage that occurs in these materials is critical in assessing their fatigue resistance. Two distinct experimental studies were performed to further the understanding of fatigue damage mechanisms in aluminum alloys and their composites, specifically fracture and plasticity. Fatigue resistance of metal matrix composites (MMCs) depends on many aspects of composite microstructure. Fatigue crack growth behavior is particularly dependent on the reinforcement characteristics and matrix microstructure. The goal of this work was to obtain a fundamental understanding of fatigue crack growth behavior in SiC particle-reinforced 2080 Al alloy composites. In situ X-ray synchrotron tomography was performed on two samples at low (R=0.1) and at high (R=0.6) R-ratios. The resulting reconstructed images were used to obtain three-dimensional (3D) rendering of the particles and fatigue crack. Behaviors of the particles and crack, as well as their interaction, were analyzed and quantified. Four-dimensional (4D) visual representations were constructed to aid in the overall understanding of damage evolution. During fatigue crack growth in ductile materials, a plastic zone is created in the region surrounding the crack tip. Knowledge of the plastic zone is important for the understanding of fatigue crack formation as well as subsequent growth behavior. The goal of this work was to quantify the 3D size and shape of the plastic zone in 7075 Al alloys. X-ray synchrotron tomography and Laue microdiffraction were used to non-destructively characterize the volume surrounding a fatigue crack tip. The precise 3D crack profile was segmented from the reconstructed tomography data. Depth-resolved Laue patterns were obtained using differential-aperture X-ray structural microscopy (DAXM), from which peak-broadening characteristics were quantified. Plasticity, as determined by the broadening of diffracted peaks, was mapped in 3D. Two-dimensional (2D) maps of plasticity were directly compared to the corresponding tomography slices. A 3D representation of the plastic zone surrounding the fatigue crack was generated by superimposing the mapped plasticity on the 3D crack profile.
ContributorsHruby, Peter (Author) / Chawla, Nikhilesh (Thesis advisor) / Solanki, Kiran (Committee member) / Liu, Yongming (Committee member) / Arizona State University (Publisher)
Created2014
Description
Concrete is the most widely used infrastructure material worldwide. Production of portland cement, the main binding component in concrete, has been shown to require significant energy and account for approximately 5-7% of global carbon dioxide production. The expected continued increased use of concrete over the coming decades indicates this is an ideal time to implement sustainable binder technologies. The current work aims to explore enhanced sustainability concretes, primarily in the context of limestone and flow. Aspects such as hydration kinetics, hydration product formation and pore structure add to the understanding of the strength development and potential durability characteristics of these binder systems. Two main strategies for enhancing this sustainability are explored in this work: (i) the use of high volume limestone in combination with other alternative cementitious materials to decrease the portland cement quantity in concrete and (ii) the use of geopolymers as the binder phase in concrete. The first phase of the work investigates the use of fine limestone as cement replacement from the perspective of hydration, strength development, and pore structure. The nature of the potential synergistic benefit of limestone and alumina will be explored. The second phase will focus on the rheological characterization of these materials in the fresh state, as well as a more general investigation of the rheological characterization of suspensions. The results of this work indicate several key ideas. (i) There is a potential synergistic benefit for strength, hydration, and pore structure by using alumina and in portland limestone cements, (ii) the limestone in these systems is shown to react to some extent, and fine limestone is shown to accelerate hydration, (iii) rheological characteristics of cementitious suspensions are complex, and strongly dependent on several key parameters including: the solid loading, interparticle forces, surface area of the particles present, particle size distribution of the particles, and rheological nature of the media in which the particles are suspended, and (iv) stress plateau method is proposed for the determination of rheological properties of concentrated suspensions, as it more accurately predicts apparent yield stress and is shown to correlate well with other viscoelastic properties of the suspensions.
ContributorsVance, Kirk (Author) / Neithalath, Narayanan (Thesis advisor) / Rajan, Subramaniam D. (Committee member) / Mobasher, Barzin (Committee member) / Chawla, Nikhilesh (Committee member) / Marzke, Robert (Committee member) / Arizona State University (Publisher)
Created2014
Description
This dissertation is a detailed rhetorical analysis of interviews with rice farmers in central Java, Indonesia and documents published by the global NGOs United Nations Food and Agriculture Organization (FAO) and CGIAR. Using theories of materiality, literacies, and environmental rhetorics, I examine how seemingly distinct and disparate humans, organizations, and inanimates are actually entangled agents in a dynamic conversation. I have termed that conversation the discourse of rice farming. Studying local and global together challenges conventional dichotomous thinking about farming and food. Looking at this conversation as an entanglement reveals what Karen Barad has defined in Meeting the Universe Halfway as the intra-relatedness of all agents. I focus on rice farming because rice is a food staple around the world and a major component of global agriculture initiatives by FAO and CGIAR. I argue that farmers construct their jobs in terms of production, food sovereignty, and community. The NGOs construct agriculture in terms of consumption, food security, and poverty alleviation. In my project I emphasize the need for global agents to better account for how farmers construct agriculture. Accounting for how all agents impact the discourse of rice farming is the only way to come to an objective understanding rice farming's impact on local and global scales. My argument adds to the field of environmental rhetorics because most published case studies are about the United States and thus are limited in their applicability. And it enriches global conversations about food security and food justice because it shares accounts from actual farmers who are often conspicuously absent from literature on those topics.
ContributorsCooney, Emily (Author) / Goggin, Peter (Thesis advisor) / Hannah, Mark (Committee member) / Chhetri, Netra (Committee member) / Arizona State University (Publisher)
Created2015
Description
This project presents an institutional history of women’s intercollegiate athletics at the University of North Carolina at Chapel Hill. By looking to the individual campus, we learn about the ways in which administrators, coaches, faculty, and students understood the educational value of college sports. The UNC women’s program began in the 1950s as extramural play and quickly transformed into big-time college sports. By the early 1980s, the women experienced the same tension between academics and athletics at the heart of intercollegiate sports as the men. The National Collegiate Athletic Association, colleges, the media, and most Americans strongly associated the Big Time with the revenue-producing sports of football and men’s basketball. In Chapel Hill and across America, however, all sports teams, men’s and women’s, revenue and non-revenue, felt the effects of the increased professionalization and commercialization of the collegiate athletic enterprise. The history of women’s intercollegiate athletics provides a new window into exploring the benefits and challenges of big-time sports in higher education.
Frances Burns Hogan, Director of Intercollegiate Athletics for Women, and her colleagues worked hard to expand sporting opportunities for women. They helped create the Association for Intercollegiate Athletics for Women, which provided governance and began hosting national championships in 1971. They collaborated with university administrators and athletic officials to implement Title IX compliance during the 1970s. Hogan and many directors eagerly joined men’s athletic conferences to commence regular season play, and by the 1980s, supported the move to the NCAA. Providing the best competitive experiences for Carolina female student-athletes motivated Hogan’s decisions.
Frances Hogan and women’s directors nationwide determined the nature of women’s intercollegiate athletics. Hogan and her colleagues debated whether women’s sports should be inclusive and participatory or competitive and elitist. They struggled over the tension between the drive to expand women’s sporting opportunities and the desire to maintain educational priorities. They grappled with men in the athletic department who resisted their efforts to gain publicity, access to better facilities, adequate operational support, and the legitimacy enjoyed by men’s teams. By 1985, Hogan’s tireless efforts created the premier women’s athletic program in the Southeast.
Frances Burns Hogan, Director of Intercollegiate Athletics for Women, and her colleagues worked hard to expand sporting opportunities for women. They helped create the Association for Intercollegiate Athletics for Women, which provided governance and began hosting national championships in 1971. They collaborated with university administrators and athletic officials to implement Title IX compliance during the 1970s. Hogan and many directors eagerly joined men’s athletic conferences to commence regular season play, and by the 1980s, supported the move to the NCAA. Providing the best competitive experiences for Carolina female student-athletes motivated Hogan’s decisions.
Frances Hogan and women’s directors nationwide determined the nature of women’s intercollegiate athletics. Hogan and her colleagues debated whether women’s sports should be inclusive and participatory or competitive and elitist. They struggled over the tension between the drive to expand women’s sporting opportunities and the desire to maintain educational priorities. They grappled with men in the athletic department who resisted their efforts to gain publicity, access to better facilities, adequate operational support, and the legitimacy enjoyed by men’s teams. By 1985, Hogan’s tireless efforts created the premier women’s athletic program in the Southeast.
ContributorsJackson, Victoria Louise (Author) / Simpson, Brooks D. (Thesis advisor) / Garcia, Matthew (Committee member) / Miller, Keith (Committee member) / Arizona State University (Publisher)
Created2015
Description
For decades, microelectronics manufacturing has been concerned with failures related to electromigration phenomena in conductors experiencing high current densities. The influence of interconnect microstructure on device failures related to electromigration in BGA and flip chip solder interconnects has become a significant interest with reduced individual solder interconnect volumes. A survey indicates that x-ray computed micro-tomography (µXCT) is an emerging, novel means for characterizing the microstructures' role in governing electromigration failures. This work details the design and construction of a lab-scale µXCT system to characterize electromigration in the Sn-0.7Cu lead-free solder system by leveraging in situ imaging.
In order to enhance the attenuation contrast observed in multi-phase material systems, a modeling approach has been developed to predict settings for the controllable imaging parameters which yield relatively high detection rates over the range of x-ray energies for which maximum attenuation contrast is expected in the polychromatic x-ray imaging system. In order to develop this predictive tool, a model has been constructed for the Bremsstrahlung spectrum of an x-ray tube, and calculations for the detector's efficiency over the relevant range of x-ray energies have been made, and the product of emitted and detected spectra has been used to calculate the effective x-ray imaging spectrum. An approach has also been established for filtering `zinger' noise in x-ray radiographs, which has proven problematic at high x-ray energies used for solder imaging. The performance of this filter has been compared with a known existing method and the results indicate a significant increase in the accuracy of zinger filtered radiographs.
The obtained results indicate the conception of a powerful means for the study of failure causing processes in solder systems used as interconnects in microelectronic packaging devices. These results include the volumetric quantification of parameters which are indicative of both electromigration tolerance of solders and the dominant mechanisms for atomic migration in response to current stressing. This work is aimed to further the community's understanding of failure-causing electromigration processes in industrially relevant material systems for microelectronic interconnect applications and to advance the capability of available characterization techniques for their interrogation.
In order to enhance the attenuation contrast observed in multi-phase material systems, a modeling approach has been developed to predict settings for the controllable imaging parameters which yield relatively high detection rates over the range of x-ray energies for which maximum attenuation contrast is expected in the polychromatic x-ray imaging system. In order to develop this predictive tool, a model has been constructed for the Bremsstrahlung spectrum of an x-ray tube, and calculations for the detector's efficiency over the relevant range of x-ray energies have been made, and the product of emitted and detected spectra has been used to calculate the effective x-ray imaging spectrum. An approach has also been established for filtering `zinger' noise in x-ray radiographs, which has proven problematic at high x-ray energies used for solder imaging. The performance of this filter has been compared with a known existing method and the results indicate a significant increase in the accuracy of zinger filtered radiographs.
The obtained results indicate the conception of a powerful means for the study of failure causing processes in solder systems used as interconnects in microelectronic packaging devices. These results include the volumetric quantification of parameters which are indicative of both electromigration tolerance of solders and the dominant mechanisms for atomic migration in response to current stressing. This work is aimed to further the community's understanding of failure-causing electromigration processes in industrially relevant material systems for microelectronic interconnect applications and to advance the capability of available characterization techniques for their interrogation.
ContributorsMertens, James Charles Edwin (Author) / Chawla, Nikhilesh (Thesis advisor) / Alford, Terry (Committee member) / Jiao, Yang (Committee member) / Neithalath, Narayanan (Committee member) / Arizona State University (Publisher)
Created2015
Description
This dissertation explores the various online radicalization and recruitment practices of groups like al-Qaeda and Hezbollah, as well as Salafi Jihadists in general. I will also outline the inadequacies of the federal government's engagement with terrorist / Islamist ideologies and explore the ways in which early 20th century foundational Islamist theorists like Hasan al-Banna, Sayyid Qutb, and Abul ala Mawdudi have affected contemporary extremist Islamist groups, while exploring this myth of the ideal caliphate which persists in the ideology of contemporary extremist Islamist groups. In a larger sense, I am arguing that exploitation of the internet (particularly social networking platforms) in the radicalization of new communities of followers is much more dangerous than cyberterrorism (as in attacks on cyber networks within the government and the private sector), which is what is most often considered to be the primary threat that terrorists pose with their presence on the internet. Online radicalization should, I argue, be given more consideration when forming public policy because of the immediate danger that it poses, especially given the rise of microterrorism. Similarly, through the case studies that I am examining, I am bringing the humanities into the discussion of extremist (religious) rhetorics, an area of discourse that those scholars have largely ignored.
ContributorsSalihu, Flurije (Author) / Ali, Souad T. (Thesis advisor) / Miller, Keith (Thesis advisor) / Corman, Steven (Committee member) / Gee, James P (Committee member) / Arizona State University (Publisher)
Created2014
Description
At the heart of this dissertation is a push for critical genealogy that intervenes into two major theoretical bodies of work in rhetoric and composition -- affect studies and queer latina rhetorics. Chapter one intervenes into emerging discourses on publics and affect studies from seamlessly recovering "the body" as an always-already Western body of rhetoric in the advent of this renewed interest in emotion, embodiment, and structures of affect as rhetorical concepts showing the long history of theorizing by queer mestizas. Chapter two focuses on one register of affect: anger, which articulated from the works of writers such as Maria Lugones and Gloria Anzaldúa offers a complex theory of agency for the subaltern subject. Chapter three links emotions like anger and melancholia to the corporeal rhetorics of skin and face, metaphors that are abundant in the queer mestiza and chicana writers under discussion, revealing the dramatic inner-workings of a the queer mestiza subject and the inter-subjective dynamics between the racialized and gendered performance of that body. By re-rooting affect in the queer colonized, yet resistant body, the link between the writing subject and colonial violence is made clear. Chapter four looks at the autoethnographic process of creating an affective archive in the form of queer racial melancholia, while Chapter five concludes by taking writing programs to task for their view of the writing archive, offering a radical new historiography by means of a queer chicana methodology.
ContributorsMartínez, Natalie A (Author) / Miller, Keith (Thesis advisor) / Roen, Duane (Committee member) / Baca, Damián (Committee member) / Arizona State University (Publisher)
Created2014