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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Assessment of media and communication from a sustainability perspective

Moberg, Åsa January 2010 (has links)
This thesis aims to assess potential environmental impacts of media and communication and to contribute to the development of methods for sustainability assessment. Although the main focus is on printed and electronic media products and environmental impacts, a broader sector analysis is also included and social aspects are discussed. The thesis provides a review of different environmental assessment tools in order to better understand their relationships and the appropriateness of different tools in different situations. Life cycle assessment (LCA) is used to assess printed and electronic versions of newspapers, books and invoices. Results of the screening LCAs of newspapers and books indicate that when comparing printed and electronic versions there are benefits and drawbacks for both. For news and books read on e-reading devices with energy efficient e-ink screens, the main environmental impacts in the studies stemmed from the production of the device and partly from disposal, with the latter having the potential to reduce some environmental impacts through recycling of materials. However, there are data gaps regarding the production of the e-reading devices, most notably for the e-ink screen and the waste management of obsolete e-reading devices. Existing data on internet energy use are uncertain. The potential impacts from a hypothetical total change from paper invoices to electronic invoices in Sweden were assessed through a screening consequential LCA regarding greenhouse gas emissions and cumulative energy demand. The results indicate that emissions and energy demand could decrease as a result of a change. The screening LCAs performed indicate that users’ practices could substantially influence the environmental impacts. Key factors which can influence results and comparisons of printed and electronic media products are total use of electronic devices, total use of printed media, amount and type of paper, energy use of electronic devices, potential printing of electronic media, electricity mix, and the system boundaries set for the assessments. To get a wider perspective, a sector study of the ICT sector and media sector concerning global greenhouse gas emissions and operational electricity use was performed. It was estimated that the contribution to global greenhouse gas emissions in 2007 was roughly 1-2 % for each sector. To assess media and communication products from a sustainability perspective, social aspects should also be covered. The author participated in an international project group on social aspects and LCA, one outcome from which was guidelines for social LCA (S-LCA). In addition to providing guidance for S-LCA, another important role of the guidelines is to facilitate discussions, criticism and proposals for improvement and development of the methodology being developed. The LCA and sector studies in this thesis are limited to direct and to some extent indirect environmental impacts. Further studies of the environmental impacts of more long-term changes in practices and potential structural changes, as well as potential social impacts, could provide important additional insights. This could increase the possibility of facilitating sustainable practices related to ICT and media. / QC 20100610
2

The impact of mobile reading devices on the reading habits of a group of adolescent learners in Zimbabwe

Bachisi, Ivan 02 1900 (has links)
The pace of technological advancement and growth in the twenty-first century continues to soar at unprecedented levels and beyond human imagination. As the fourth industrial revolution unfolds, it has become increasingly difficult to predict the direction technological innovation will take in the not too distant future. Digital technologies have become an integral part of every aspect of human existence (work, play, schooling and personal relationships). The purpose of this study was to explore the various ways mobile technological gadgets like cell phones, tablets and laptops could be leveraged to promote a culture of leisure reading amongst a group of Zimbabwean adolescent learners. Data was collected using the literacy practices interview, mobile reading diaries, focus group interviews and the researcher’s personal field notes. Theoretically, the study was guided primarily by Urie Bronfenbrenner's Bioecological systems theory. Also, the study was supported by Guthrie and Wigfield's reader engagement model and Turner and Hicks' connected reader model. The empirical data collected through the data collection instruments were analysed inductively. The findings revealed that adolescent learners are a digital generation whose reading needs are ever growing and expectations are ever changing. The adolescent participants expect their reading to be like the rest of their digital lives, which is quick, uninterrupted, personalised and smart. It was found that the adolescent participants like to read on their terms, as they dislike being told when to read or what to read. Three reader identities were revealed namely; the eager reader, the ‘fifty fifty’ reader and the non-reader. The adolescent participants who were not already mobile readers readily accepted and adopted mobile reading as it afforded them vast reading opportunities. Besides, the findings of the study revealed that participants encountered many challenges, which in some instances militated against their mobile reading endeavours. These challenges were because of mobile phone use restrictions in schools, prohibitive data costs, a strong emphasis on academic reading as opposed to leisure reading and internet connectivity problems amongst other issues. In this study, the recommendations and guidelines outlined provide a framework with which schools, parents, mobile reading application developers and policymakers can adopt to support a robust mobile reading culture amongst Zimbabwean adolescent learners. The researcher concluded that mobile reading devices are a novel, noble and credible means through which they can foster positive leisure literacy practices amongst Zimbabwean adolescents. / Language Education, Arts and Culture / Ph. D. (Curriculum and Instructional Studies)

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