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ASU Electronic Theses and Dissertations


Date Range
2004 2018

This study investigates the relationships between ESL teachers' beliefs about writing instruction and their use of computer technology in the first-year composition classroom. Utilizing a sociocultural approach, the study analyzes the connections between ESL teachers' instructional beliefs and the technological practices that emerge as a result of these beliefs and decisions. Qualitative research was conducted, and data was collected through classroom observations, teacher interviews, and course materials. Data analysis reveals that regardless of teachers' differing beliefs about writing instruction, they use computer technology when it enhances their teaching and students' learning. It also reveals that factors such as teacher attitude ...

Contributors
Erdem, Ebru, Van Gelderen, Elly, Nilsen, Don, et al.
Created Date
2004

John La Montaine (b. 1920) has devoted his life to music composition. His major works total 62 opus numbers, including operas, concertos, songs, chamber music, and orchestral works as well as eleven compositions for solo piano. Among his composition teachers were Nadia Boulanger and Howard Hanson, and his first piano concerto was awarded the 1959 Pulitzer Prize for Music. He was active also as a concert soloist and collaborative pianist, appearing on prestigious concert series and with first-rank orchestras. Despite his obvious success, La Montaine did not seek publicity. As a result, the majority of his music is not widely ...

Contributors
O'Brien, Andrew, Hamilton, Robert, Cosand, Walter, et al.
Created Date
2010

As miniature and high-heat-dissipation equipment became major manufacture and operation trends, heat-rejecting and heat-transport solutions faced increasing challenges. In the 1970s, researchers showed that particle suspensions can enhance the heat transfer efficiency of their base fluids. However, their work was hindered by the sedimentation and erosion issues caused by the relatively large particle sizes in their suspensions. More recently, nanofluids--suspensions of nanoparticles in liquids-were proposed to be applied as heat transfer fluids, because of the enhanced thermal conductivity that has generally been observed. However, in practical applications, a heat conduction mechanism may not be sufficient for cooling high-heat-dissipation devices such ...

Contributors
Lai, Wei-Yun, Phelan, Patrick E, Chen, Kangping, et al.
Created Date
2010

As an industrial society, humans have increasingly separated agricultural processes from natural ecosystems. Many areas of the Southwestern US, however, maintain traditional practices that link agricultural systems to the natural environment. One such practice, diverting river water into fields via earthen irrigation canals, allows ditch water to recharge groundwater and riparian vegetation to prosper along canal banks. As there is growing interest in managing landscapes for multiple ecosystem services, this study was undertaken to determine if irrigation canals function as an extension of the riparian corridor. I was specifically interested in determining if the processes within semi-arid streams that drive ...

Contributors
Betsch, Jacqueline Michelle, Stromberg, Juliet C, Hall, Sharon J, et al.
Created Date
2010

Silicon carbide (SiC), long touted as a material that can satisfy the specific property requirements for high temperature and high power applications, was studied quantitatively using various techniques. The electronic band structure of 4H SiC is examined in the first half of this dissertation. A brief introduction to band structure calculations, with particular emphasis on the empirical pseudopotential method, is given as a foundation for the subsequent work. Next, the crystal pseudopotential for 4H SiC is derived in detail, and a novel approach using a genetic algorithm search routine is employed to find the fitting parameters needed to generate the ...

Contributors
Ng, Garrick, Schroder, Dieter K, Vasileska, Dragica, et al.
Created Date
2010

Efficient performance of gas turbines depends, among several parameters, on the mainstream gas entry temperature. At the same time, transport of this high temperature gas into the rotor-stator cavities of turbine stages affects the durability of rotor disks. This transport is usually countered by installing seals on the rotor and stator disk rims and by pressurizing the cavities by injecting air (purge gas) bled from the compressor discharge. The configuration of the rim seals influences the magnitude of main gas ingestion as well as the interaction of the purge gas with the main gas. The latter has aerodynamic and hub ...

Contributors
Balasubramanian, Jagdish Harihara, Roy, Ramendra P, Lee, Taewoo, et al.
Created Date
2010

Motor-respiratory coordination is the synchronization of movement and breathing during exercise. The relation between movement and breathing can be described using relative phase, a measure of the location in the movement cycle relative to the location in the breathing cycle. Stability in that relative phase relation has been identified as important for aerobic efficiency. However, performance can be overly attracted to stable relative phases, preventing the performance or learning of more complex patterns. Little research exists on relative phase dynamics in motor-respiratory coordination, although those observations underscore the importance of learning more. In contrast, there is an extensive literature on ...

Contributors
Hessler, Eric Edward, Amazeen, Polemnia G, Amazeen, Eric L, et al.
Created Date
2010

This dissertation describes work on three projects concerning the design and implementation of instrumentation used to study potential organic electronic devices. The first section describes the conducting atomic force microscope (CAFM) in the study of the mechanical and electronic interactions between DNA bases and nucleosides. Previous STM data suggested that an STM tip could recognize single base pairs through an electronic interaction after a functionalized tip made contact with a self assembled monolayer then was retracted. The conducting AFM was employed in order to understand the mechanical interactions of such a system and how they were affecting electrical responses. The ...

Contributors
Kibel, Ashley, Lindsay, Stuart M, Chamberlin, Ralph, et al.
Created Date
2010

Environmental change and natural hazards represent a challenge for sustainable development. By disrupting livelihoods and causing billions of dollars in damages, disasters can undo many decades of development. Development, on the other hand, can actually increase vulnerability to disasters by depleting environmental resources and marginalizing the poorest. Big disasters and big cities get the most attention from the media and academia. The vulnerabilities and capabilities of small cities have not been explored adequately in academic research, and while some cities in developed countries have begun to initiate mitigation and adaptation responses to environmental change, most cities in developing countries have ...

Contributors
Marquez Reyes, Bernardo Jose, Eakin, Hallie, Lara-Valencia, Francisco, et al.
Created Date
2010

Through interviews and observations, this thesis provides an overview of refugee resettlement and explores the way one community is providing English language instruction to recently resettled refugees. It also describes the research process of this thesis so other researchers will be aware of the challenges such research contexts provide. In the southwestern state studied here, one of the refugee resettlement agencies holds the contract to provide English Language instruction to refugees. Other agencies provide supplemental English instruction and tutoring. The U.S. federal statute Immigration and Nationality Act, title 45 of the Code of Federal Regulations part 400--Refugee Resettlement Program, and ...

Contributors
Kielczewski, Sarah-Anne Laster, Adams, Karen L, Van Gelderen, Elly, et al.
Created Date
2010

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.