[pt] Vários estudos indicam que live stream, ou transmissão ao vivo, é um tópico emergente de pesquisa na área de Interação Humano- Computador. Um tipo de transmissão é a live stream para compartilhar conhecimento (knowledge sharing live stream – KSLS). A Embrapa Gado de Leite, unidade descentralizada da Embrapa (Empresa Brasileira de Pesquisa Agropecuária), utiliza KSLSs para disseminar os resultados de suas pesquisas. Neste trabalho, apresentamos um diagnóstico sobre o uso de transmissões ao vivo para compartilhar conhecimento a partir da experiência da Embrapa Gado de Leite. Propomos avaliar o quão adequado é o uso de live streams para compartilhar conhecimento, apresentar comportamentos e preferências dos espectadores e identificar oportunidades de melhoria nas funcionalidades desta ferramenta. Para isso, acompanhamos nove KSLSs realizadas pela empresa, aplicamos um questionário on-line e fizemos entrevistas com parte do público que participou das transmissões. Além disso, analisamos estatísticas de acesso e o log dos chats. Nossos resultados indicam que live stream é uma ferramenta adequada para compartilhar conhecimento e que o público se interessa por mecanismos de interação além de comentários no chat, que é a funcionalidade atualmente disponível na plataforma de streaming utilizada neste trabalho. Desta forma, apresentamos lições aprendidas sobre preferências e comportamentos dos espectadores e sobre oportunidades de aprimoramento na dinâmica e nas funcionalidades de KSLSs, permitindo que o conteúdo técnico seja transferido por meio de interações mais ricas. / [en] Several studies indicate that live stream is an emerging research topic in Human-Computer Interaction. A specific type of these broadcasts is the knowledge sharing live stream (KSLS). The Embrapa Dairy Cattle, a decentralized unit of Embrapa (Brazilian Agricultural Research Corporation), uses KSLSs to disseminate its research results. In this work, we present a diagnosis about the use of live streams to share knowledge based on the Embrapa Dairy Cattle experience. We propose to evaluate how adequate it is to use live streams to share knowledge, present viewers behaviors and preferences, and identify opportunities for improvement in this tool s features. For this, we monitored nine KSLSs carried out by the company, applied an online survey, and conducted interviews with part of the public who participated in the broadcasts. Also, we analyzed access statistics and chat logs. Our results indicate that live stream is an adequate tool for sharing knowledge and the public is interested in interaction mechanisms in addition to comments in the chat, which is the feature currently available on the streaming platform used in this work. In this way, we present lessons learned about viewers preferences and behaviors and opportunities for improvement in KSLSs dynamics and features, allowing technical content to be transferred through richer interactions.

The live video streaming market is, as some research suggests, a difficult one to develop.Comparing it to other media it has the disadvantage of being available during a limitedperiod of time. This thesis explores how mobile devices can be used as an exploratorytool through live video streaming. The opportunity of control in the moment is studiedand examined in this report. This research will suggest a mobile device platform in whichpeople can assist other people exploring new environments around the globe. It also triesto evaluate whether this exploring interaction can occur between unacquainted people andat the same time not be hindered by any language barriers. The motivation behind thissubject is the human need and curiosity of exploring new environments and places.The foundation of the research approach was based on interaction design principles andmethods. This created a chain of methods used with the intent of better understandingwhat is to be considered when designing for live video experiences focusing onenvironments. The process lead to important understandings and key aspects to beconsidered when designing live experiences focusing on environments. The results thatemerged, showed that the most important encouragement is; to be presented with anenvironment that includes novel elements. Furthermore, the results could also concludethat by giving access to directional controls, and some means of expressing appreciation,can help to influence and shape exploration with live video.

This diploma thesis Historie Redakce sportu České televize v letech 1993-2015 describes the sports broadcasting in the Czech Republic (and Czechoslovakia) from 1989 to 2015. The author explains the most important milestones in the history of Sports Department of Czech Television. The description goes from the constitution of the department over the circumstances connected with the inception of the channel ČT sport, the changes in the organization, personal composition and editorial leadership up to the current form of the department. The thesis also contains the development of sports news, live broadcasts, television technology, Olympic Games, football and ice hockey broadcasts and the importance of the Internet utilization for sports department (abbr SD). The essential parts of this thesis are more than 30 interviews with editors of SD involving their own opinions, authentic experiences and stories. The thesis also reminds some of the long forgotten facts and answers many questions regarding sports broadcasting in the past, present and future including the outlook towards the year 2024. Furthermore, it describes activities of sports editors, commentators, moderators, directors, cameramen, producers and other employees of Czech TV. This thesis partly focuses on the development of the Czechoslovak...