During face-to-face meetings, humans use multimodal information, including verbal information, visual information, body language, facial expressions, and other non-verbal gestures. In contrast, during computer-mediated-communication (CMC), humans rely either on mono-modal information such as text-only, voice-only, or video-only or on bi-modal information by using audiovisual modalities such as video teleconferencing. Psychologically, the difference between the two lies in the level of the subjective experience of presence, where people perceive a reduced feeling of presence in the case of CMC. Despite the current advancements in CMC, it is still far from face-to-face communication, especially in terms of the experience of presence. This thesis aims to introduce new concepts, theories, and technologies for presence design where the core is actions for creating presence. Thus, the contribution of the thesis can be divided into a technical contribution and a knowledge contribution. Technically, this thesis details novel technologies for improving presence experience during mediated communication (video teleconferencing). The proposed technologies include action robots (including a telepresence mechatronic robot (TEBoT) and a face robot), embodied control techniques (head orientation modeling and virtual reality headset based collaboration), and face reconstruction/retrieval algorithms. The introduced technologies enable action possibilities and embodied interactions that improve the presence experience between the distantly located participants. The novel setups were put into real experimental scenarios, and the well-known social, spatial, and gaze related problems were analyzed. The developed technologies and the results of the experiments led to the knowledge contribution of this thesis. In terms of knowledge contribution, this thesis presents a more general theoretical conceptual framework for mediated communication technologies. This conceptual framework can guide telepresence researchers toward the development of appropriate technologies for mediated communication applications. Furthermore, this thesis also presents a novel strong concept – presence through actions - that brings in philosophical understandings for developing presence- related technologies. The strong concept - presence through actions is an intermediate-level knowledge that proposes a new way of creating and developing future 'presence artifacts'. Presence- through actions is an action-oriented phenomenological approach to presence that differs from traditional immersive presence approaches that are based (implicitly) on rationalist, internalist views.

Online adolescent friendships and social networking among adolescents are current phenomena that have emerged, and exploded, as part of the digital age and the vast development of communication technologies. The primary aim of this study was to gain knowledge and understanding regarding the nature and quality of online friendships and social networking among adolescents. A sequential explanatory mixed method design, was put to use for the purpose of this study. The quantitative data was collected first in the form of a short survey, by utilising a self-developed questionnaire to obtain a general overview of the social network practices and the forming and maintaining of online friendships among adolescents. Twenty five participants took part in the survey. This study was followed by a qualitative study in the form of interviews, to clarify, elaborate and explain the quantitative findings. Five information rich participants were interviewed. The findings of the empirical investigation revealed that adolescents, being part of the Net Generation, base their concept of socialising with friends on digital and communication technology, especially cell phones. They are connected to their friends 24 hours a day. The sense of safety and support they experience through this constant connectedness strengthens their self-esteem, self-confidence and self-worth and contributes to their identity formation. It is therefore recommended that parents and educators should accept that adolescents live in a virtual world and their new way of socialising, needs to be acknowledged. Parents and educators should adjust accordingly, by getting educated in this field themselves. The Net Generation is a generation who focuses on relationships and collaboration through technology and this should be exploited by anybody who has contact or interacts with the adolescent of today. / Psychology of Education / M. Ed. (Guidance and Counselling)

The researcher investigated internet usage among students at the University of Nairobi using a quantitative case study method. A questionnaire-based survey was done among 381 students and face-to-face interviews were conducted with the university‟s library staff. The research findings indicate that the students' level of awareness about the internet services offered at the university was high. The students had good basic computer and internet skills; however, they lacked more advanced skills and this negatively affected their use of internet resources. The students used the internet for various purposes, including to study, teach and do research; to communicate; and for social interaction. The major recommendations of the study include providing formal internet training and adequate facilities; implementing a better, inclusive policy on internet use; and better co-ordinated university efforts. Free internet access should be made available to all the university students, if not all members of the university community. / Information Science / M.A. (Information Science)

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Syftet med studien är att presentera ett designkoncept för publika diskussioner på nätet med målet att uppnå djupare diskussioner och minska mängden information overload. Arbetet använder metoden Concept Driven Interaction Design (CDID) som går ut på att skapa ett designkoncept utifrån flera olika teorier som appliceras genom interaktionsdesign. Ett designkoncept innehåller tre delar: ett namn, ett syfte och huvudprinciper. CDID innehåller sju steg som arbetet är utformat efter: 1.      Concept Generation – Summeras i en tabell som jämför diskussioner i forum (med flera antagande) och diskussioner med hjälp av metoden Philosophy for Children (P4C), samt annan teori. 2.      Concept Exploration – Åtta olika designaspekter identifieras utifrån jämförelsetabellen. 3.      Internal Concept Critique – Designaspekterna jämförs med två snarlika diskussionsformat. 4.      Design of Artifacts – Designkoncept version 1 skapas. 5.      External Design Critique – Intervjuer utförs för att undersöka intervjupersonerna generella erfarenheter av online diskussioner, testar antagandena från jämförelsetabellen och ge direkt feedback på första versionen av designkonceptet. 6.      Concept Revisited – Ändringar görs baserat på intervjumaterial och direkt feedback. 7.      Concept Contextualization – Designkonceptet kopplas tillbaka till litteraturen. Studien resulterar i ett designkoncept kallat CoFramer och stödjer dessa huvudprinciper som ställs i kontrast till material som identifierats genom intervjuerna: Tabell 1: CoFramers huvudprinciper och faktorer från intervjuer om diskussioner på forum. CoFramers huvudprinciper | Från intervjuer om diskussioner på forum Strukturerad början och slut | Diskussion utan tydligt slut Begränsat antal deltagare | Stor mängd deltagare Minimum antal deltagare | Många inaktiva åskådare Explicita deltagare | Lite information om deltagare Gemensamma förutsättningar | Otydlighet kring deltagares förutsättningar Begränsad informationstäthet per inlägg | Långa inlägg och/eller snabba inlägg Den röda tråden och parallella trådar | Oftast parallella trådar Aktiv samtalsledare | Outredda missförstånd Studien indikerar på att CoFramer bör resultera i mer strukturerade diskussioner och som utsätter användaren för en lägre mängd information overload och mindre grounding cost jämfört med vad som vanligtvis uppstår i publika diskussioner online. / The focus of this essay is to develop a design concept for online public discussions with deep discussions and low information overload. The method used is Concept Driven Interaction Design (CDID) which involves constructing a design concept by applying a variety of theories in tangible interaction design. A design concept has three basic parts: a name, high-level goals and outlines generic principles. CDID includes seven steps which is used in this work: 1.      Concept Generation – Formatted into a table that compare forum discussion (with several hypothesis) compared to discussions with the method Philosophy for Children (P4C) and other theories. 2.      Concept Exploration – Eight distinct design aspects are identified from the comparison table. 3.      Internal Concept Critique – The design aspects are compared to three similar discussion formats. 4.      Design of Artifacts – Design concept version 1 is created. 5.      External Design Critique – Interviews are conducted to explore their general experience of online discussions, investigate the hypothesis from the comparison table and to seek direct feedback on the first draft of the design concept. 6.      Concept Revisited – Changes are made to the design concept based on the interview material and the direct feedback. 7.      Concept Contextualization – The design concept is related to the original literature. The result of the study is a design concept named CoFramer. CoFramer’s generic principles are summarized and contrasted against factors identified from the interview material in this table: Tabell 2: CoFramer’s generic principles and interviews about online discussions. CoFramer’s generic principles | From interview material on forum discussion Organized start and ending | Discussions without clear ending Limited number of participants | Large number of participants Minimum number of participants | Large number of inactive spectators Explicit participants | Low information about participants Common conditions | Vagueness in participants conditions Limited information density per post | Long posts and/or fast posts The red thread and parallel threads | Often parallel threads Active facilitator | Unresolved misunderstandings The study indicates that CoFramer would create more structured discussions with a lower amount of information overload and less grounding cost compared what normally arise in public online discussions.

German text / Diese Forschungsarbeit versucht aufzuzeigen, inwiefern der Glaube an die Trinität als Gemeinschaft von Vater, Sohn und Heiligem Geist zu einem erfüllenden zwischenmenschlichen Zusammenleben in sozialen Online-Netzwerken beitragen kann. Im Gespräch mit den drei Theologen Jürgen Moltmann, Leonardo Boff und Gisbert Greshake wird das Konzept der Sozialen Trinität mit seinen Implikationen für das zwischenmenschliche Zusammenleben erarbeitet. In einem zweiten Teil werden die neuen Möglichkeiten von sozialen Online- Netzwerken und die deutlichsten damit verbundenen Mängel für das zwischenmenschliche Zusammenleben am Beispiel von Facebook dargestellt. Schlussendlich wird danach gefragt, inwiefern die Erkenntnisse aus der theologischen Diskussion für den spezifischen Kontext sozialer Online-Netzwerke fruchtbar gemacht werden können. Es werden drei unterschiedliche Aspekte herausgearbeitet, in denen der Glaubende durch das Eingebundensein in die göttliche Gemeinschaft eine neue Sicht auf seinen sozialen Kontext erhalten und eine hilfreiche Ressource finden kann, um den Unzulänglichkeiten des zwischenmenschlichen Zusammenlebens in sozialen Online-Netzwerken entgegenzuwirken. / This thesis wishes to demonstrate in how far faith in the Trinity as community of Father, Son and Holy Spirit can contribute to a fulfilling human communal life on social networking sites. In conversation with the three theologians Jürgen Moltmann, Leonardo Boff and Gisbert Greshake, a concept of the Social Trinity and its implications on human communal life is being elaborated. In a second part, the new possibilities and the gravest shortcomings of human interactions on Facebook are depicted. Finally, it is asked, in how far the findings of the theological discussion can be fructified in the specific context of social networking sites. In three different aspects it will be elaborated, in which the believer can find, through his or her incorporation into the godly community, a new perspective for his social context and a helpful resource to counter the shortcomings of human communal life on social networking sites. / Philosophy & Systematic Theology / M. Th. (Systematic Theology)

The mobile phone forms part of a teenager’s life world and reality today and can be regarded as a tool with which they not only communicate, but also use them to gain access to the Internet, social media and social networking sites. The primary aim of this study was to determine if the mobile phone, with all its functionalities, has an impact on the development of the adolescent’s identity formation, social development and communication skills as well as the sense of the self. Another objective of this study was to determine what the opinions and perceptions are of older generations with regard to mobile practices of the youth. A concurrent triangulation mixed method design was utilised for the purpose of the study. The quantitative and qualitative studies were conducted simultaneously and the data and results from each method were integrated and interpreted as a whole. The quantitative data gathering method was short self-structured questionnaires that were completed by learners (190), teachers (35) and parents (21) to provide a general overview of mobile usage among adolescents. A single-group pre-test post-test experimental design and individual interviews were conducted with eight volunteers. Lastly, 12 learners took part in a focus group interview as a confirmation technique for all the information that was gathered. The findings of the empirical investigation revealed that the mobile phone is used nowadays as a social tool, a planning tool and a convenience tool. The constant connectedness the mobile phone provides, strengthens the adolescents’ self-esteem and self-confidence and contributes strongly to their self-worth. The mobile phone is used as a self-expressive personalised tool and forms part of the sense of the adolescent self. It was also found that adolescents build their relationships with others on a two-dimensional platform that involves online and offline communication and activities. A definite gap exists between older generations’ perceptions and adolescents in connection with the ways that adolescents use their mobile phones nowadays. Parents and teachers have to accept the fact that technology forms part of today’s youth and they should change their mind-sets with regard to this complicated and complex phenomenon. / Psychology of Education / D. Ed. (Psychology of Education)

German text / Diese Forschungsarbeit versucht aufzuzeigen, inwiefern der Glaube an die Trinität als Gemeinschaft von Vater, Sohn und Heiligem Geist zu einem erfüllenden zwischenmenschlichen Zusammenleben in sozialen Online-Netzwerken beitragen kann. Im Gespräch mit den drei Theologen Jürgen Moltmann, Leonardo Boff und Gisbert Greshake wird das Konzept der Sozialen Trinität mit seinen Implikationen für das zwischenmenschliche Zusammenleben erarbeitet. In einem zweiten Teil werden die neuen Möglichkeiten von sozialen Online- Netzwerken und die deutlichsten damit verbundenen Mängel für das zwischenmenschliche Zusammenleben am Beispiel von Facebook dargestellt. Schlussendlich wird danach gefragt, inwiefern die Erkenntnisse aus der theologischen Diskussion für den spezifischen Kontext sozialer Online-Netzwerke fruchtbar gemacht werden können. Es werden drei unterschiedliche Aspekte herausgearbeitet, in denen der Glaubende durch das Eingebundensein in die göttliche Gemeinschaft eine neue Sicht auf seinen sozialen Kontext erhalten und eine hilfreiche Ressource finden kann, um den Unzulänglichkeiten des zwischenmenschlichen Zusammenlebens in sozialen Online-Netzwerken entgegenzuwirken. / This thesis wishes to demonstrate in how far faith in the Trinity as community of Father, Son and Holy Spirit can contribute to a fulfilling human communal life on social networking sites. In conversation with the three theologians Jürgen Moltmann, Leonardo Boff and Gisbert Greshake, a concept of the Social Trinity and its implications on human communal life is being elaborated. In a second part, the new possibilities and the gravest shortcomings of human interactions on Facebook are depicted. Finally, it is asked, in how far the findings of the theological discussion can be fructified in the specific context of social networking sites. In three different aspects it will be elaborated, in which the believer can find, through his or her incorporation into the godly community, a new perspective for his social context and a helpful resource to counter the shortcomings of human communal life on social networking sites. / Philosophy and Systematic Theology / M. Th. (Systematic Theology)