Ce mémoire porte sur les représentations qui ont circulé sur Internet avant et durant le mouvement historique et inattendu de révolte sociale au Brésil, pendant la Coupe des confédérations de 2013. La vague de manifestations a provoqué un débat passionné sur Internet à propos des méga-événements, mais des études sur ce phénomène récent sont encore absents de la littérature. La présente recherche est un effort de combler cette lacune en examinant le cas de la ville de Rio de Janeiro, qui accueillera la finale de la Coupe du monde de soccer de 2014 et sera la ville hôte des Jeux olympiques de 2016. Le but du travail est de comprendre quelles sont les représentations qui émergent des nouvelles en réseau au sujet des transformations et des conflits urbains dans le cadre des méga-événements. À partir d'une analyse logico-naturelle des documents publiés entre 2009 et 2013 sur des sites Web avec quatre profils communicationnels distincts, la recherche met en évidence dans quelle mesure les représentations sociales reproduisent (1) la stratégie de branding urbain de la part du gouvernement et (2) les stratégies de résistance civile de la part des populations affectées par les transformations urbaines. Du point de vue théorique et méthodologique, l'étude mobilise la notion de journalisme liquide, inspiré des travaux du sociologue Zygmunt Bauman, qui s’est concentré sur les conséquences culturelles, économiques et politiques de la mondialisation. Les résultats de l'analyse documentaire ont permis d'exposer les représentations sociales construites autour de trois thématiques centrales : les favelas, les expulsions forcées dans la ville de Rio de Janeiro et les manifestations de juin 2013. En plus d'une discussion théorique critique à propos des résultats, l'étude les confronte avec la littérature scientifique repérée dans la recension des écrits. / This master thesis deals with the representations circulating on the Internet before and during the historical and unexpected popular uprising in Brazil, during the 2013 Confederations Cup. The wave of protests, which triggered a passionate online debate about mega-events, is still an understudied phenomenon. To fill this gap, this research investigates the problem by examining the case of the city of Rio de Janeiro, host of the finals of 2014 World Cup and of 2016 Olympic Games. The study aims to analyze on the representations emerging from news networks in the light of the fast-paced urban transformations and conflicts that currently characterize mega-events in the city. A natural logic analysis of documents published between 2009 and 2013 by four particular types of news sites highlights how social representations reproduced: (1) the government strategy of urban branding and (2) the civil movements strategies to face urban transformations. At the theoretical and methodological levels, the study explores the research path of liquid journalism, inspired by the work of sociologist Zygmunt Bauman, who focused on the cultural, economic and political consequences of globalization. The collected data were analyzed from a critical and theoretical viewpoint. The results were discussed by confronting those obtained by the researchers who we referenced in the literature.

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As the Second World War in Europe came to an end the Russians advanced from the east towards Berlin. German occupation of Poland and Czechoslovakia had been particularly brutal. Both of these countries, products of German defeat at the end of World War I contained millions of ethnic Germans, who had previously co-existed with their Slav neighbours, often for many centuries, but were now perceived by these neighbours as having encouraged and collaborated with Nazi Germany. Russians, Poles and Czechs now sought revenge triggering the largest forced expulsion in recorded history. Somewhere between 8 and 16.5 million ethnic Germans fled to the west, and between 2 and 3 million perished during flight. Expellee property was subsequently seized by the Poles and Czechs. In broad terms, until the 1990s these events were seen within Germany as part of a submerged collective memory, suppressed in part by their having lost the war. In the last 20 years with an increasingly powerful expellee organisation (the Bund der Vertriebenen, Federation of Expellees) influencing mainstream German politics, academia, and the German media, an attempt has been made to change historical memory, or rewrite what has been referred to as an 'unacceptable past'. This, in recent years has led to claims by former expellees against the Czech Republic, and Poland for restitution. This in itself has led to bitter accusations by these countries that the expellees have rewritten German history portraying themselves as victims of the Second World War. This thesis explores the methods employed by the expellee groups and their supporters in the restructuring of their historical memory by examining literature dating from the 1950s until the present day from primarily German and American sources, as well as German television documentaries from 2000. These sources are considered in relation to how collective and historical memory have evolved into a position that has allowed the expellees to create an 'acceptable past'.