Matching Items (43,913)
Description
This study analyzed archaeological residential inventories from the center of Sauce and its hinterlands to address the possible appearance of markets and the structure of exchange during the Middle Postclassic period (A.D. 1200-1350) in south-central Veracruz, Mexico. Economic development is rarely the result of a coherent strategy either on the part of managing or consuming elites or on the part of the average consumer. Instead, a combination of strategies and overlapping exchange systems provided the context, rather than any one explanation, for how commercial market exchange develops. Identifying the context is challenging because economies have multiple exchange mechanisms, which require clearly defined expectations that separate spatial and network (distributional) data. This separation is vital because different exchange mechanisms such as centralized redistribution versus central-place marketing produce similar spatial patterns. Recent innovations in identifying exchange mechanisms use network (distributional) instead of spatial expectations. Based on this new body of knowledge, new quantitative methods were developed to distinguish between exchange through social networks versus market exchange for individual items based on comparisons of household inventories, later combining this information with spatial and contextual analyses. First, a Bayesian-inspired Monte Carlo computer simulation was designed to identify exchange mechanisms, using all household items including cooking utensils, serving dishes, chipped stone tools, etc., from 65 residential units from Sauce and its hinterland. Next, the socioeconomic rank of households, GIS spatial analyses, and quality assessments of pottery and other items were used to evaluate social and political aspects of exchange and consumption. The results of this study indicated that most products were unrestricted in access, and spatial analyses showed they were acquired in a market near Sauce. Few restrictions on most of the polychromes, chipped stone, and assorted household items (e.g., spindle whorls) lend strong support to commoner household prominence in developing markets. However, there were exceptions. Dull Buff Polychrome was associated with the Sauce center; analyses showed that its access was restricted through social networks. "Cookie-cutter" style figurines and incense burners also showed restriction. Restricted items found in Sauce and wealthier residences indicate enduring political and social inequalities within market development. For Sauce, a combination of elite and commoner household interests was crucial in supporting the growth of commercial exchange rather than a top-down directive.
ContributorsOssa, Alanna (Author) / Stark, Barbara L. (Thesis advisor) / Cowgill, George L. (Committee member) / Smith, Michael E. (Committee member) / Simon, Arleyn W. (Committee member) / Umberger, Emily (Committee member) / Arizona State University (Publisher)
Created2011
Description
In this study, I investigate the digital literacy practices of adult immigrants, and their relationship with transnational processes and practices. Specifically, I focus on their conditions of access to information and communication technologies (ICTs) in their life trajectories, their conditions of learning in a community center, and their appropriation of digital literacy practices for transnational purposes. By studying the culturally situated nature of digital literacies of adult learners with transnational affiliations, I build on recent empirical work in the fields of New Literacy Studies, sociocultural approaches to learning, and transnational studies. In this qualitative study, I utilized ethnographic techniques for data collection, including participant observation, interviewing, and collection of material and electronic artifacts. I drew from case study approaches to analyze and present the experiences of five adult first-generation immigrant participants. I also negotiated multiple positionalities during the two phases of the study: as a participant observer and instructor's aide during the Basic Computer Skills course participants attended, and as a researcher-practitioner in the Web Design course that followed. From these multiple vantage points, my analysis demonstrates that participants' access to ICTs is shaped by structural factors, family dynamics, and individuals' constructions of the value of digital literacies. These factors influence participants' conditions of access to material resources, such as computer equipment, and access to mentoring opportunities with members of their social networks. In addition, my analysis of the instructional practices in the classroom shows that instructors used multiple modalities, multiple languages and specialized discourses to scaffold participants' understandings of digital spaces and interfaces. Lastly, in my analysis of participants' repertoires of digital literacy practices, I found that their engagement in technology use for purposes of communication, learning, political participation and online publishing supported their maintenance of transnational affiliations. Conversely, participants' transnational ties and resources supported their appropriation of digital literacies in everyday practice. This study concludes with a discussion on the relationship among learning, digital literacies and transnationalism, and the contributions of critical and ethnographic perspectives to the study of programs that can bridge digital inequality for minority groups.
ContributorsNoguerón, Silvia Cecilia (Author) / Warriner, Doris S (Thesis advisor) / Faltis, Christian J (Committee member) / Mccarty, Teresa (Committee member) / Wiley, Terrence (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
With tremendous increase in the popularity of networked multimedia applications, video data is expected to account for a large portion of the traffic on the Internet and more importantly next-generation wireless systems. To be able to satisfy a broad range of customers requirements, two major problems need to be solved. The first problem is the need for a scalable representation of the input video. The recently developed scalable extension of the state-of-the art H.264/MPEG-4 AVC video coding standard, also known as H.264/SVC (Scalable Video Coding) provides a solution to this problem. The second problem is that wireless transmission medium typically introduce errors in the bit stream due to noise, congestion and fading on the channel. Protection against these channel impairments can be realized by the use of forward error correcting (FEC) codes. In this research study, the performance of scalable video coding in the presence of bit errors is studied. The encoded video is channel coded using Reed Solomon codes to provide acceptable performance in the presence of channel impairments. In the scalable bit stream, some parts of the bit stream are more important than other parts. Parity bytes are assigned to the video packets based on their importance in unequal error protection scheme. In equal error protection scheme, parity bytes are assigned based on the length of the message. A quantitative comparison of the two schemes, along with the case where no channel coding is employed is performed. H.264 SVC single layer video streams for long video sequences of different genres is considered in this study which serves as a means of effective video characterization. JSVM reference software, in its current version, does not support decoding of erroneous bit streams. A framework to obtain H.264 SVC compatible bit stream is modeled in this study. It is concluded that assigning of parity bytes based on the distribution of data for different types of frames provides optimum performance. Application of error protection to the bit stream enhances the quality of the decoded video with minimal overhead added to the bit stream.
ContributorsSundararaman, Hari (Author) / Reisslein, Martin (Thesis advisor) / Seeling, Patrick (Committee member) / Tepedelenlioğlu, Cihan (Committee member) / Arizona State University (Publisher)
Created2011
Description
As a significant level of the reformation and transformation of our society has been provoked by environmental deterioration, ecological approaches in environmental design have drawn much attention from professionals as an alternative world view and also as a practical design approach. Particularly in landscape architecture, ecological understanding has been at the very core of the profession since its emergence and plays an important role in the decision making processes. While ecology supports the profession with an objective rationale, aesthetics plays another major role in providing various understandings about the aesthetic experience of people, which is rather subjective. However, the ways to seek the balance between them are still controversial. Furthermore, the conventional aesthetic value system of landscape appears to have limitations for guiding us to an appropriate appreciation, especially in dealing with newly emerging urban landscape patterns such as regeneration of post-industrial landscapes. Understanding these issues, there have been continuous attempts to describe the relation between ecology and aesthetics, suggesting that a new approach known as "ecological aesthetics," can bring us a new set of viewpoints seeking a reunion of nature and culture, and science and art. It asserts that "there is a type of beauty" in the landscape associated with its ecological health which people could aesthetically appreciate; and therefore, revealing the "hidden" beauty of nature in more visible ways should be the primary concern of today's ecological designers. This research mainly consists of extensive literature research and a case study on two landscape restructuring projects of post-industrial landscapes in Seoul, Korea. The literature research redefines the tasks of landscape architecture based on the idea of ecological aesthetics, and the case study seeks the potentials and limitations of current design projects. This research proposes a framework for landscape perception and reflects on the lessons that would be useful for better practice and research.
ContributorsMin, Byoung Wook (Author) / Cook, Edward (Thesis advisor) / Crewe, Katherine (Committee member) / Pijawka, David (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
This research describes software based remote attestation schemes for obtaining the integrity of an executing user application and the Operating System (OS) text section of an untrusted client platform. A trusted external entity issues a challenge to the client platform. The challenge is executable code which the client must execute, and the code generates results which are sent to the external entity. These results provide the external entity an assurance as to whether the client application and the OS are in pristine condition. This work also presents a technique where it can be verified that the application which was attested, did not get replaced by a different application after completion of the attestation. The implementation of these three techniques was achieved entirely in software and is backward compatible with legacy machines on the Intel x86 architecture. This research also presents two approaches to incorporating software based "root of trust" using Virtual Machine Monitors (VMMs). The first approach determines the integrity of an executing Guest OS from the Host OS using Linux Kernel-based Virtual Machine (KVM) and qemu emulation software. The second approach implements a small VMM called MIvmm that can be utilized as a trusted codebase to build security applications such as those implemented in this research. MIvmm was conceptualized and implemented without using any existing codebase; its minimal size allows it to be trustworthy. Both the VMM approaches leverage processor support for virtualization in the Intel x86 architecture.
ContributorsSrinivasan, Raghunathan (Author) / Dasgupta, Partha (Thesis advisor) / Colbourn, Charles (Committee member) / Shrivastava, Aviral (Committee member) / Huang, Dijiang (Committee member) / Dewan, Prashant (Committee member) / Arizona State University (Publisher)
Created2011
Description
ABSTRACT The Phoenix Four Rivers Flora is an inventory of all the vascular plants growing along the Salt, Gila, New and Agua Fria Rivers, and their tributaries in the Phoenix Metropolitan Area during the years of the study (2009-2011). This floristic inventory documents the plant species and habitats that exist currently in the project area, which has changed dramatically from previous times. The data gathered by the flora project thus not only documents how the current flora has been altered by urbanization, but also will provide a baseline for future ecological studies. The Phoenix Metropolitan Area is a large urbanized region in the Sonoran Desert of Central Arizona, and its rivers are important for the region for many uses including flood control, waste water management, recreation, and gravel mining. The flora of the rivers and tributaries within the project area is extremely diverse; the heterogeneity of the systems being caused by urbanization, stream modification for flood control, gravel mining, and escaped exotic species. Hydrological changes include increased runoff in some areas because of impermeable surfaces (e.g. paved streets) and decreased runoff in other areas due to flood retention basins. The landscaping trade has introduced exotic plant species that have escaped into urban washes and riparian areas. Many of these have established with native species to form novel plant associations.
ContributorsJenke, Darin (Author) / Landrum, Leslie R. (Committee member) / Pigg, Kathleen B. (Committee member) / Makings, Elizabeth (Committee member) / Arizona State University (Publisher)
Created2011
Description
The crime of human trafficking has received increased national attention over the past decade. However, the subject of human trafficking is rarely mentioned in criminal justice and criminology curricula in colleges and universities. This study discusses findings from a review of listed courses in 100 criminology and criminal justice bachelor degree programs in colleges and universities in the United States. Implications for further research, including examining criminal justice education programs outside of academe, are discussed. The author advocates adding courses on human trafficking in criminology and criminal justice curricula and makes recommendations for undergraduate criminology and criminal justice education.
ContributorsZhilina, Tatyana (Author) / Stancliff, Michael (Thesis advisor) / Bernat, Francesc (Committee member) / Vaughan, Suzanne (Committee member) / Arizona State University (Publisher)
Created2011
Description
The original mediums were not texts or technologies; they were ritual actors performing acts of mediumship. Mediating between determined norms (the status quo) and emergent trends (change), they invoked divine authority to conjure meanings that proved adaptive, nonadaptive and/or maladaptive. With the advent of the written word, ritual became formalized and codified. The medium became a communication device, something abstract and external to the human condition. It then became possible to speak of "media effects" imposing influence in a logical deterministic manner. Yet with the advent of new media, we are witnessing a return to modes of cultural discourse that are spontaneous, interactive, communal and unscripted, all hallmarks of ritual action. This "ritual return" centers on the emergence of the "prosumer" (producer/consumer), a figure actively engaged in mediating practices. While resembling the original archaic "medium" in some respects, the prosumer is a "literate ritualist" allied with a multiplicity of cultural tribes. Thus the "new media" has given rise to "the new medium." The pages that follow focus on acts of contemporary mediumship, examining related concepts such as "ecology," "niche," "role," "affordance," and "trope." Each section considers how specific mediating practices afford and constrain modes of ritualized behavior. I call this practice-oriented approach to media studies "praxism."
ContributorsGyori, Bradford (Author) / Goggin, Maureen (Thesis advisor) / Baker, Aaron (Committee member) / Hjorleifur Jonsson (Committee member) / Arizona State University (Publisher)
Created2011