This multi-year, multi-city investigation seeks to examine how and why civic associations are employing information communication technologies (ICTs) in their work and the extent to which these uses are transforming urban ‘civic space.’ Rather than being passive non-state actors shaped by technologies in the ‘networked city,’ civic environmental associations are treated in this study as co-evolving ‘actor-networks’ that are both shaping and shaped by their ICT practices. This study systematically examines how ICT-linked tools or platforms are reconfiguring civic associations and civic space in the three ‘tiger city’ settings of Hong Kong, Singapore and Taipei. This investigation employs grounded theory, case study methods, and actor-network theory to examine the co-evolution of ICTs and civic environmental associations. The concept of info-sociations (ICT-associations) is employed in constructing a socio-technical model for analysis of the fast-evolving ICT practices of civic associations. Such an approach suggests that diverse forms of ICT-linked praxis—where civic ideals and knowledge are being put into practice—involves multimodal digital practices; alongside blended or multiplexed physical and virtual practices; and multiscalar practices. The info-sociational model compares ICT-linked organizational, participatory and spatial practices at the associational level by examining digitally-linked: internal and external organizational change; reconfigurations in the public sphere and cyberactivism; scalar transformations and associational alliance formations. Analyses of city-specific ‘civic space’ storylines; alongside a discussion of the problems and potentialities of ICT-linked practices also contributes to an integrated info-sociational model. An info-sociational approach therefore serves to examine transformations in knowledge, power and space as civic environmentalists employ ICTs. The info-sociational model supports an analysis of three pairs of age-distinct civic environmental associations in Hong Kong, Singapore and Taipei. These six cases (as units of analysis) were selected for their diverse civic environmental activities; their differences in age; and their variety of ICT-linked practices, including uses for: public deliberations, and mobilizing activism; networked alliance formations; identifying environmental and spatial issues in city regions; and creating alternative green media. Employing the info-sociational model in analyses of the six civic environmental associations led to the observations that: ‘externally-oriented’ ICT-linked practices were of greater importance than ‘internal practices’ amongst civic associations; that groups prioritized ‘digital green public sphere’ practices compared to ‘cyberactivism’; and these associations employed ICTs more frequently for ‘alliance-building’ than for ‘spatial transformations.’ Several of the cases illustrated how ICTs can enhance or augment existing alliances and potentially support new types of civic-cyber formations. By touching on questions of knowledge, power and space an info-sociational approach therefore can contribute to integrated explanations of how and why civic associations are using and (re)shaping ICTs in pursuit of their diverse aims for more livable and just cities. / published_or_final_version / Urban Planning and Design / Doctoral / Doctor of Philosophy

Today’s society requires citizens to have a greater knowledge of information technology (IT) than in previous decades. Strategy programs at a national level define the skill needed in an information society and encourage people to learn these skills (Ministry of Education, 2004). In order for everybody to have the opportunity to learn the basics of the new technology, computer science should be included in general education. The development of technology, like Information and Communication Technology (ICT) has turned the world into a global village (Hashem, 2006). The key instrument in this globalisation is the personal computer. Computer–mediated communication is increasingly becoming the dominant means of communication, particularly in the developed and in some developing countries (Adebisi, 2008). In a developing country, ICT is one of the prime ingredients for development. This generally means improvement of people’s lifestyle through improved education, income, skills development and employment. Development should now also be viewed as a multidimensional process involving major changes in social structures, popular attitudes and a national progression of life from unsatisfactory to satisfactory (Servaes, 1999). Since one of the goals of education is to prepare students for work and citizenship, schools are attempting to change their policies, practices and a curriculum to meet the challenge of making pupils ready for a future quite different than the immediate past (Turker & Codding, 1998). The integration of ICT into the teaching and learning environment in secondary education in Port Elizabeth could change learning and teaching attitudes of learners and teachers and help to prepare them for future challenges. However, the success of this integration will depend on how the learners and teachers adapt to the changes and whether they can make ICT technologies part of their daily life. As it is, there is little or no information available regarding the extent of current ICT usage and access in these secondary schools. The research focuses on the availability, usage and the impact of ICT in education, particularly at a secondary school in the poverty-stricken area of Zwide in Port Elizabeth.

published_or_final_version / Business Administration / Master / Master of Business Administration

published_or_final_version / abstract / Business / Master / Master of Philosophy

published_or_final_version / Education / Doctoral / Doctor of Philosophy

While most scholars agree that the development of increasingly sophisticated computer-based technologies over the past thirty years and their ubiquitous use in work settings are important technological transformations, it is still question whether they constitute large-scale and meaningful social transformations. In this dissertation, it is argued that transformations cannot be understood by studying technologies in isolated and circumscribed analyses, rather they must be understood in the historical and socio-political context of their development and use. Several important questions are being asked: Will social relations in work settings be transformed so that they are more collaborative and less hierarchical, as many proponents of new group support systems predict? Will workers in computer-using organizations share equally in the production and control of skills and knowledge? Or will the use of new technologies reinforce and reproduce the current distribution of power, authority and knowledge in organizations? In order to answer these questions, a meta-analytic framework is developed. It comprises a continuum from micro- to macro-social interaction contexts, including six key fields of action surrounding the use of new technologies: (1) design; (2) use; (3) infrastructure of support; (4) work group governance; (5) organizational contexts; and (6) organizational fields. Four field studies are conducted with in vivo, ongoing organizational work groups using three new computer-based information technologies. There is little indication that hierarchical forms of work group governance are being restructured along the lines of more flexible and collaborative forms of work organization. There is, however, some evidence for power shifts among relatively disenfranchised high status participants in ongoing project teams. In addition, distinctive cultures emerged in ongoing groups that used group collaboration systems. In the desktop computing and desktop group support system work groups, skills and knowledge about their own computing environment were differentially distributed, so that lower status workers were less knowledgeable. Thus, the routine use of new technologies is most likely to reinforce the current distribution of authority and power in organizations.

This thesis is about UK healthcare decision-makers’ responses to guidance that a new interventional procedure is safe and efficacious, and whether additional information would be helpful.  The aims were to conceptualise how evidence could be used to best inform decision-making; investigate the ways in which decision-makers currently respond to such guidance; identify types of additional useful information, and assess the feasibility and value of providing these. The study was based on the UK Interventional Procedures Programme (IPP).  A multidimensional framework for categorising evidence (explanatory vs. pragmatic) was developed and tested using IPP-evaluated procedures.  A qualitative study explored how local NHS decision-makers respond to IPP guidance and whether additional information might be useful to them.  A range of approaches – from simple descriptive data, through evidence syntheses, to economic models of cost-effectiveness – were explored in a case study of radiofrequency ablation (RFA) for snoring. NHS decision-makers’ responses to IPP guidance varied and they indicated additional information would be helpful.  Available evidence on the effects of procedures went beyond ‘efficacy’.  The case study showed it was possible, within limitations, to provide useful additional information but at increasing costs as complexity increased. Decision-makers vary in their responses to IPP guidance.  Additional information (such as prevalence, incidence, costs and likely cost-effectiveness), which they indicated would be useful, is potentially available but the feasibility of providing this varies depending on the nature of the evidence available and the related costs.  The thesis indicates that the quality of decision-making would be improved if guidance that a new procedure is safe and efficacious were to be contextualised through specific extra information.

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No description available.

<p>The problem of social diffusion has animated sociological thinking on topics ranging from the spread of an idea, an innovation or a disease, to the foundations of collective behavior and political polarization. While network diffusion has been a productive metaphor, the reality of diffusion processes is often muddier. Ideas and innovations diffuse differently from diseases, but, with a few exceptions, the diffusion of ideas and innovations has been modeled under the same assumptions as the diffusion of disease. In this dissertation, I develop two new diffusion models for "socially meaningful" contagions that address two of the most significant problems with current diffusion models: (1) that contagions can only spread along observed ties, and (2) that contagions do not change as they spread between people. I augment insights from these statistical and simulation models with an analysis of an empirical case of diffusion - the use of enterprise collaboration software in a large technology company. I focus the empirical study on when people abandon innovations, a crucial, and understudied aspect of the diffusion of innovations. Using timestamped posts, I analyze when people abandon software to a high degree of detail. </p><p>To address the first problem, I suggest a latent space diffusion model. Rather than treating ties as stable conduits for information, the latent space diffusion model treats ties as random draws from an underlying social space, and simulates diffusion over the social space. Theoretically, the social space model integrates both actor ties and attributes simultaneously in a single social plane, while incorporating schemas into diffusion processes gives an explicit form to the reciprocal influences that cognition and social environment have on each other. Practically, the latent space diffusion model produces statistically consistent diffusion estimates where using the network alone does not, and the diffusion with schemas model shows that introducing some cognitive processing into diffusion processes changes the rate and ultimate distribution of the spreading information. To address the second problem, I suggest a diffusion model with schemas. Rather than treating information as though it is spread without changes, the schema diffusion model allows people to modify information they receive to fit an underlying mental model of the information before they pass the information to others. Combining the latent space models with a schema notion for actors improves our models for social diffusion both theoretically and practically. </p><p>The empirical case study focuses on how the changing value of an innovation, introduced by the innovations' network externalities, influences when people abandon the innovation. In it, I find that people are least likely to abandon an innovation when other people in their neighborhood currently use the software as well. The effect is particularly pronounced for supervisors' current use and number of supervisory team members who currently use the software. This case study not only points to an important process in the diffusion of innovation, but also suggests a new approach -- computerized collaboration systems -- to collecting and analyzing data on organizational processes.</p> / Dissertation