Guest Editor: Pablo Esteban Rodriguez (University of Buenos Aires) 

Our contemporary experience of time, mediated by images, seems subject to a double threat: crisis of the future and disappearance of the past. It happens amidst the ruins of the eternal present, omnipresent, time called, today, in the historiography, of "presentismo" (Hartog), in opposition to the futurism of Marinetti. We live in a continuous stream of fleeting images. If, with the emergence of social and digital media, the means of production and the platforms for the diffusion of images of the present day are socialized and diversified, on the other hand, the control of information and the processes of data storage becomes increasingly More concentrated. The ECO-Post Magazine invites the field of Communication to formulate issues at the border of this double phenomenon. With what aesthetic and political instruments, does the contemporary spectator take on the triple role of producer, archivist and editor of the images of his time? In a context marked by the multiplication of the means of production and access to images, how has the great media and, in particular, Brazilian television, historically positioned themselves? What relations between image and power are established in the present coxies? How does the treatment of images in social media give access to the different temporal layers of the more immediate facts? In the current production of images, what does it take to take an internal view of events? What has been retained and what is lost in terms of visual and sound records of recent events in Brazil and in the world? These are initial questions, which can be taken up in studies from various fields: television, the internet, the press, cinema, photography and the arts. 

We can consider the city from the various communication routes that cross it and produce it as a characteristically heterogeneous medium: streets, rails, roads, rivers and seas, cables, airspace. In these ways people, goods and information travel endlessly. As the historian Lewis Mumford shows from the outset, the urban fabric takes on consistency as a function of circulation. If, since the nineteenth century, this urban communication is increasingly performed in the network figure, today the communication and information technologies, especially with the advent of digital, in turn modify this reticular movement, producing forms of circulation, sociability and subjectivation in the Urban environments. This issue of the Revista ECO-Pós invites researchers to contribute works that, in the diversity of their methodologies and cutbacks, approach the urban phenomenon under a communication bias. Thus, following the directions that this construction is already assuming, we will welcome, for example, texts that address: 

1. The modes of communicative organization in its relationship with the occupation of urban space, exploring the role of cinemas, television, computer communication and, more recently, mobile media and applications in the production of social life in cities and The incidences in the built space; The technological city or "smart city", mediation processes that characterize it and forms of urban management in this context, including the city-business, many times the stage of international mega-events. 

2. Transport / traffic networks / circuits, focusing on face-to-face communication, the movement of people and messages in various modes and on the streets of cities, as well as the problem of surveillance cameras and mobility control.