No / Digital content is increasingly pervasive. Communication technologies enable the creation and dissemination of content on a transnational basis. However, the relationship between communication technology and society is complex and is impacted both by the requirements of the communicator and also cultural and social norms associated with the context of the user. How does digital technology influence media communication? How far does media communication transcend technology? The boundaries between the various forms of formal communication and social communication are blurring and the user is no longer just a consumer or someone who interacts with information; they are also a creator of new information. Companies with commercial interests in these areas are seeking to exploit new forms of communication without alienating the user.

Purpose: The relationship between context and e-governance has been gaining a significant momentum in academic circles due its social and technical complexities. There are many challenges posed by the disparity between the context and the system when it comes to e-governance in developing countries. This research aims to reveal more successful adoption of e-governance initiatives and exposes factors that hinder its implementation. We develop a conceptual framework showing the reciprocity between the context and the system or what is termed “Context-System Gap”. Therefore, this research will study the appropriateness of the context and its influence on the system and the influence of the system on the context. The purpose of this research is to explore the factors that enable successful e-government adoption in Lebanon, where e-governance is still at its initial stage. Most empirical research and theories on the implementation of e-governance in developing countries remain at the macro-level and miss out on the complexities of the context of deployment and the role of the gap between the citizens and the government. The purpose of this thesis is to provide an empirical model differentiating between the electronic context and the electronic system and shed a light over a new gap, government-citizen gap, in the adoption of e-government. Design/methodology/approach: Following previous research on e-government services adoption, this study uses several technology use and acceptance models and literature to examine the elements behind the adoption and use of e-government services in Lebanon from citizen and government perspectives. The research strategy is a quantitative method approach employing questionnaire. Quantitative data will be collected from e-government users (citizens) and statistical tests will be conducted in order to examine the relation between variables. Practical implications: The findings are useful for policy-makers and decision-makers to develop a better understanding of citizens' needs. The proposed model can be used as a guideline for the implementation of e-government services in developing countries. Originality/value: This study is the only one to examine the dimensions influencing citizens’ adoption of e-government technologies in developing countries using a unified model merging context and system elements.

This dissertation explores the social context of children with severe motor and communication impairments who use augmentative and alternative communication (AAC), examining how they participate socially, and how they interact in a goal-oriented play activity. Chapter One provides the context by reviewing literature concerning the children who use AAC: describing their presentation, outlining the role of environmental influences, and reviewing what is known about their social context, participation and communicative interactions. This chapter reviews the issues faced by children who use AAC and outlines the thesis purpose and objectives. Chapter Two presents a qualitative study that explores the children’s social context, participation and social relationships from both children’s and parents’ perspectives. This study provides insight into children’s communicative abilities but highlights their limited social context and opportunities and supports for communicative interaction and social participation. Chapter Three presents a study that explores the communicative interaction within goal-oriented play activity. This study found that, if you give children who use AAC a ‘voice’, they experience communicative success. Group differences were evident, however. Compared to their peers, children using AAC were less specific, made more and different errors and received more help from partners. This study provides evidence of how contextual elements within activity settings could be altered so children could actively participate. Chapter Four presents a conceptual framework for understanding social context. This chapter integrates person-focused and environment-focused perspectives and leads to development of a framework that depicts the transactional influences of children and social environments. Recommendations for future studies are presented. Finally, Chapter Five discusses the implications of this dissertation, placing the insights gained from the empirical studies in the context of the proposed framework. Suggestions for further research and interventions are made that may improve health and developmental outcomes in children with severe motor and communication impairments. / Thesis / Doctor of Philosophy (PhD)

Most current augmented reality (AR) displays present content at a fixed focal demand. At the same time, real-world stimuli can occur at a variety of focal distances. To integrate information, users need to switch eye focus between virtual and real-world information continuously. Previously, Gabbard, Mehra, and Swan (2018) examined these issues, using a text-based visual search task on a monocular AR display. This thesis replicated and extended the previous experiment by including a new experimental variable stereopsis (stereo, mono) and fully crossing the variables of context switching and focal distance switching, using AR haploscope. The results from the monocular condition indicate successful replication, which is consistent with the hypothesis that the findings are a general property of AR. The outcome of the stereo condition supports the same adverse effects of context switching and focal distance switching. Further, participants have better performance and less eye fatigue in the stereo condition compared to the monocular condition.

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