This study investigates the underlying factors influencing the large variances in innovation performance among the Chinese regions. What is specified in the study is the issue of the knowledge divide in China as existing regional inequalities have appeared in conjunction with the production of knowledge and innovation in its transformation into an innovation-driven economy. While the Chinese innovation system has achieved some promising developments at the aggregate level over the past few years, the inequality between the coastal and inland regions are widening with substantial disparities in the level of innovation capacity. In order to understand the major reasons for this new trend in regional divergence, the study explores the different levels of innovation activities among the provincial-level regions of China and analyzes the determinants of regional innovation capacity, employing a comprehensive and unified framework of a regional innovation system. The overall results suggest that while the Chinese regional innovation systems have evolved over time, increasing human and capital resources in innovation and accumulated knowledge stock/the level of economic development, together with the development of innovation-enhancing policies, industrial cluster environment, and linkages between innovation actors, are all crucial determinants of regional innovation capacity, leading to significant disparities in the level of innovation capacity among Chinese regions.

Title from title page of PDF (University of Missouri--St. Louis, viewed February 22, 2010). Includes bibliographical references (p. 83-95).

This dissertation examines stakeholder narratives that surround Information Communication Technologies (ICTs) in education, as well as the gap that exists between this narrative and effective widespread integration of ICTs in the classroom. Popular narratives surrounding ICTs in education often position ICTs as positive and inevitable and as a development strategy that benefits individuals, nations, and the global marketplace. However, ICTs are not equally distributed or enjoyed within or among nations. Technologies, information, and social development efforts are not neutral but are socially constructed and motivated by specific actors trying to achieve certain outcomes. This research, anchored in theories of ICTs in education, globalization, development communication, digital divide, and production of culture, provides a critical perspective to better understand who contributes to the production of the education technology culture and what social development gains are possible through the implementation of such efforts. One major factor contributing to the narrative of ICTs in education is the widespread adoption of education technology standards. This case study examines the stakeholder culture that produces those standards and contributes to the education technology narratives. Through interview and historical organization document analysis, I examine the processes followed to establish the National Education Technology Standards (NETS); the stakeholders that contribute to and operate within a culture of instructional technology that informs the development of technology standards; and how the production of culture surrounding instructional technology standards has been realized internationally. I argue that there is a disconnect between the production of instructional technology culture and the realities facing poor schools and poor nations. Despite the development and widespread adoption of educational technology standards, significant educational gains have largely gone unrealized. While I do not dispute the importance of establishing a minimum set of expectations for ICTs in education, I assert that the focus on standards distracts from more challenging conversations concerning inequities among schools and the deep socioeconomic divisions that continue to reinforce the digital divide and the overall inability to provide equitable opportunities for students. / text

The presence of structure in a computational problem can often be exploited and can lead to a more efficient numerical algorithm. In this dissertation, we look at structured numerical problems that arise from applications in wireless communications and machine learning that also impact other areas of scientific computing. In wireless communication system designs, certain structured matrices (frames) need to be generated. The design of such matrices is equivalent to a symmetric inverse eigenvalue problem where the values of the diagonal elements are prescribed. We present algorithms that are capable of generating a larger set of these constructions than previous algorithms. We also discuss the existence of equiangular tight frames---frames that satisfy additional structural properties. Kernel learning is an important class of problems in machine learning. It often relies on efficient numerical algorithms that solve underlying convex optimization problems. In our work, the objective functions to be minimized are the von Neumann and the LogDet Bregman matrix divergences. The algorithm that solves this optimization problem performs matrix updates based on repeated eigendecompositions of diagonal plus rank-one matrices in the case of von Neumann matrix divergence, and Cholesky updates in case of the LogDet Bregman matrix divergence. Our contribution exploits the low-rank representations and the structure of the constraint matrices, resulting in more efficient algorithms than previously known. We also present two specialized zero-finding algorithms where we exploit the structure through the shape and exact formulation of the objective function. The first zero-finding task arises during the matrix update step which is part of the above-mentioned kernel learning application. The second zero-finding problem is for the secular equation; it is equivalent to the computation of the eigenvalues of a diagonal plus rank-one matrix. The secular equation arises in various applications, the most well-known is the divide-and-conquer eigensolver. In our solutions, we build upon a somewhat forgotten zero-finding method by P. Jarratt, first described in 1966. The method employs first derivatives only and needs the same amount of evaluations as Newton's method, but converges faster. Our contributions are the more efficient specialized zero-finding algorithms. / text

This dissertation explores whether and how alternative media in El Salvador incorporated information communication technologies (ICTs) for social change, and whether incorporating said technologies changed citizen participation not only in the media process itself, but also in a broader discursive sphere as well as civic and political life. Within the context of a digitally divided region, this project employed ethnographic methods—including in-depth interviews, participant-observation, and a content analysis—to interrogate the perceived potential value of ICTs in alternative media for contesting power, contributing to social change, and opening spaces for citizen participation in technology and through technology. This research is merely a beginning stage in learning how digital communication tools influence alternative media practices, and what that means for participation, mobilization and empowerment. This study contributes to burgeoning literature focused on communication for social change and technologies by adding an international focus, and by furthering our understanding of under what circumstances alternative media can (or cannot) employ new technologies in liberating ways, especially in a region where use of and access to these technologies is far from universal. Ultimately this dissertation advances existing literature with two main contributions: extending our understanding of the digital divide to include inequalities of social media and whether it is used in liberating or frivolous ways, and including technology use—whether liberating or not¬—as a fundamental approach to the study of alternative media. / text

In November 2012, the Federal Communications Commission (FCC) announced the implementation of the Local Community Radio Act of 2010, which marks the largest expansion of community radio stations in U.S. history. The act responds to the decade-long community radio movement in which many civilian groups advocated that community radio—an “old-fashioned” yet affordable public medium—still plays a significant role in fostering the expression of diverse voices and citizen participation in this digital era. Despite the successful advocacy effort in the policy-making arena, the real impact of community radio remains a question. Who listens to and participates in community radio? Does the connection between community radio and community exist? This dissertation investigates audience interaction and participation in the U.S. community radio sector, seeking to empirically and theoretically advance audience research in community radio and alternative media in general. Methodologically, this dissertation is based on case studies from two community radio stations KOOP and KPFT in Texas through multiple methods including 5-year ethnographic fieldwork, in-depth interviews with 70 individuals including staff, programmers and listeners, a web-based listener survey with 131 respondents, and a textual analysis of producer-audience communication platforms such as blogs and social networking sites. The results demonstrate the limitations of audience interaction and participation caused by resource constraints and community radio programmers’ tendency to speak with themselves. Therefore, I recommend that community radio broadcasters should consider developing systemic approaches to evaluate and facilitate audience participation, which requires an understanding that the value of community engagement lies beyond audience size or the amount of listener donations. This dissertation concludes that community radio remains relevant in this digital era. This affordable and accessible form of alternative media to some extent bridges a digital divide. The medium also facilitates the development of a genuine relationship between radio programmers and listeners, thus the formation of virtual and real communities. These are the very elements that make meaningful dialogues possible in any communication environment. / text

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This research focuses on how sediment supply, sea level and delta processes control the partitioning of the sediment budget across and into the topset, slope and basinfloor compartments of deepwater basins. Addressing this problem provides significant insight to characterize source-to-sink systems, improve tectono-stratigraphic models and predict sand bypass to deepwater areas. The research was carried out in the Lance-Fox Hills-Lewis shelf margin formed during the Maastrichtian in the Washakie-Great Divide basin of southern Wyoming. I use a database with approximately 520 wells integrated with outcrops to develop a high resolution, dynamic stratigraphy approach for shelfmargin characterization. The results emphasize the driving role of sediment supply in rapid shelf-margin building and deepwater sand emplacement. On the study margin, high sediment supply was able to outpace shelf accommodation even at times of relatively high and rising sea level. At these times, shelf margin clinoforms developed a more aggradational architecture with relatively thick and more marine influenced topsets formed in response to basin deepening due to rapid subsidence. The high supply and subsidence are interpreted to have resulted from crustal loading and significant erosion during prominent Laramide thrust-driven source uplift. The high supply caused the formation of highstand shelf-edge deltas with strong wave and river influences. These deltas resulted in extensive coastal sand belts at the shelf margin, and bypass of significant volumes of sand to deepwater areas. In contrast, during times of stable to very low rates of sea level rise, the basin developed more progradational clinoforms with more terrestrial and generally thinner topsets. More of the sediment was funneled to the basin floor and shelfedge deltas were under strong river and tidal influence. Stable or even falling sea level resulted from decreased subsidence or slight basin uplift, interpreted to have resulted from decreasing uplift, tectonic quiescence or possibly slight tectonic rebound in the basin. The Lewis-Fox Hills margin is considered supply-dominated, a term to denote moderately deep shelf margins (< 1000 m) that prograde at high rates (several tens of km/my) and deliver sand to deepwater areas recurrently and in large volumes even at sea level highstand.

The goal of this study is to provide a better understanding of the impact of outreach programs designed to impart technology skills to middle-school students from underserved communities, on both participants and their families. An outreach program, called Hi-Tec CompNow, was chosen for this study. This program was conducted as an after-school program for middle-school students from underserved communities in central Texas wherein participants learn computer hardware and software skills during a ten-week period. The study utilized (a) an interpretive analysis of the data generated from a questionnaire administered at the beginning and end of the program to obtain participants‟ computer beliefs, (b) program observations recorded by the researcher during program sessions, and (c) interviews conducted by the researcher with participants and their families after program completion. Results of the study showed that the majority of participants experienced some increase in their CSE beliefs at the end of the program, but the changes were not statistically significant. The study further illustrated that participants interviewed by the researcher expressed increased confidence in computers, spent more time on home computers, and were able to resolve computer issues in their homes. Parents were pleased with the program as well and generally expressed increased confidence in their children‟s computer skills. The study identified some of the program attributes which seemed to have led to enhanced CSE beliefs in most participants. These included hands-on experiences and teacher demonstrations of computer skills. In addition, the study found that student encouragement through family support and commitment had a positive impact on participants‟ CSE beliefs, while negative family input had a negative impact. Lack of culturally-responsive learning content, participants‟ lack of use of the dial-up Internet service provided cost-free for a year, and perceptions that the computers provided by the program were outdated and thus not fully functional were factors which seemed to have undermined the program‟s impact on digital equity. Additionally, the program provided software which focused on document creation, spreadsheet-based analysis, and presentations. However, the study also revealed that most participants utilized home computers for more “recreational” purposes, e.g. playing games, and playing and/or editing music, games, and videos. The study suggests that well-intentioned outreach programs such as Hi-Tec CompNow are making laudable efforts to bridge the digital divide. However, they need to reinvent themselves to ensure underserved populations do not get left behind in a digital world that has moved beyond the desktop computer. To enhance the digital literacy of the underserved, digital equity programs must provide opportunities to build their skills in multimedia, mobile media and online participation in addition to fostering access to newer computers of good quality with high-speed and wireless Internet. / text

ICT4D, here defined as the use of Information and Communication Technologies (ICT) in developing regions, can be seen as one of the most powerful and cost efficient ways to improve the standard of living in the developing world. Many regions in Asia have shown a rapid but heterogeneous development where information technology had a drastic impact on development but often with the problems related to ICT4D 1.0: lack of sustainability and lack of scalability. This study analysed the Sri Lankan infrastructure for region-wide dissemination of blended learning in the 21st century based on the exploration of some selected ICT4D hubs and educational initiatives. The overall aim of the research was to observe, describe and analyse how the selected ICT4D initiatives and the creation of ICT4D hubs in Sri Lanka might support region-wide dissemination of blended learning and local development. A longitudinal case study has been the overall approach where a number of embedded thematic units were explored in long-term fieldwork conducted between 2006 and 2012. Data has been collected from a combination of observations, interviews, group discussions, surveys and document analysis. Findings showed that several of the studied ICT4D hubs have contributed to the general development but the country’s internal digital divide has in fact grown, as urban growth has been so much faster than the growth in rural areas, leaving the country with geographic as well as socio-economic gaps. Some of the former war zones have definitely been left behind and there is a need for further support of the Eastern and Northern regions of the island. Sri Lanka has had an outcome that must be classified as better than average compared to other developing regions with increased opportunities for education and with some ICT4D hubs as multipurpose meeting points. Contributing factors to the successful development are the high literacy rate, the chain of ICT4D projects rolled out in the right order and a committed implementation of educational eServices. On the other hand there were other, more negative findings indicating that sustainability, knowledge sharing and inter-project cooperation and coordination have often failed. The identified strength in the Sri Lankan model, which can be recommended for other parts of the world as well, is the way top-down management of infrastructure sometimes is combined with bottom-up grass-root activities. Other recommendations, that also are global, are to extend existing ICT4D hubs and upgrade them to more intelligent, autonomous and multi-service ICT4D routers that could also handle the future need for eServices in the fields of eHealth, eFarming and eGovernance.