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The Large Technological System (LTS) is a central concept in the epistemologies of Action-Network Theories (ant), related with poststructuralist epistemologies, and an important tool for the analysis of territorial systems. In this paper, we will use the lts concept to examine the hydrologic system of the Metropolitan Area of Bogotá, making emphasis on three aspects: the natural structure, the technological complex, and the normative framework. The goal was to explore the metropolitan geopolitics of water use in La Sabana de Bogotá and the particularities in the water governance, highlighting the incidence of municipalism and the interaction of a wide group of private, governmental, and civic actors. It was examined the physical infrastructure provided by the Empresa de Acueducto y Alcantarillado de Bogotá (eab-esp) that works as a quasi-monopoly actor in water management as well as their interaction with the highly autonomous municipalities. Other actors such as the real estate, floriculture, mining, and dairy activities was included in the analysis. The report gives special attention to the highly complex relationships between them and how they work in a complex and multiscale normative framework. The text concludes emphasizing the different challenges of water governance in a context of rapid metropolisation, complexing economic relations and climate and environmental change. [ABSTRACT FROM AUTHOR]

This paper introduces some of the main elements that configure a paradigm shift in Communication, with the aim of providing a reflection on the ever-changing nature of both the World and our discipline. This is the time for publics and audiences; they embody the message's sense and its raison d'être. The present paper collects the results of two different research studies conducted at different times and with diverse actors and audiences, applying the eclectic method. Some of these findings are as follows: communication has changed due to the appearance of new screens (media) and new actors, who have now become "citizen celebrities". The Twenty First Century has arrived, bringing with it changes to our old paradigms. The new subjects act and live together in cyberspace; they select their own media and develop their own content. Reality is not really virtual, but it is enriched by these new screens (new media). [ABSTRACT FROM AUTHOR]