Mediatization, circulation and social semiosis: references for critical analysis of platforms and algorithms 249 of analysis: meta, macro, meso, and micro. Meta-analysis refers to philosophical reflections on the relations between mediati- zation and the transformations of the species and the planet; macroanalysis relates mediatization to economic, cultural, and political processes that are broader than the specific media phe- nomenon; meso-analysis is especially important because it is dedicated to inferences about a historical configuration of media (newspaper, radio and television, for example) and mediatiza- tion; finally, microanalysis is specific empirical research, aimed at analyzing media phenomena as cases of investigation. In a way, it is impossible to separate these levels, but it is possible to define a focus of reflection. For instance, an approach referenced in anthropological or social philosophy will tend to accentuate inferences from meta-analysis; case analysis in general tends to be microanalysis; and so on. Verón’s uses and appropriations generated in Latin America, especially in Argentina – University of Buenos Aires and National University of Rosario – and in Brazil – PPGCC Unisi- nos, POSCOMUFSM and UFBA –, hundreds of empirical research, materialized including in theses and dissertations, which were and are carried out in various directions. What is common in these directions? Circulation is the “shared object” between the various approaches based on this epistemological “foundation” of Eliseo Verón on mediatization. Maintaining an “order” that is not only chronological, we present, briefly, some models on circulation and mediatiza- tion in Verón that allow us to locate the importance of circula- tion as an object in his perspectives and, also, to highlight epistemological and methodological issues of these models, when we are investigating mediatization, considering its genealogy and permanent mutations. 1.1 Verón’s foundations – on circulation There are two studies that can define this foundation from Eliseo Verón’s perspective on circulation. One, entitled Les spectacles scientifiques télévisés (Fouquier; Verón, 1985); the other, Ethnographie de l’exposition: l’espace, le corps et le sens (Verón; Levasseur, 1989). In the first, the research is about
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