The principle of homophily says that people associate with other groups of people who are mostly like themselves. Many online communities are structured around groups of socially similar individuals. On Twitter, however, people are exposed to multiple, diverse points of view through the public timeline. The authors captured 30,000 tweets about the shooting of George Tiller, a late-term abortion doctor, and the subsequent conversations among pro-life and pro-choice advocates. They found that replies between like-minded individuals strengthen group identity, whereas replies (...) between different-minded individuals reinforce in-group and out-group affiliation. Their results show that people are exposed to broader viewpoints than they were before but are limited in their ability to engage in meaningful discussion. They conclude with implications for different kinds of social participation on Twitter more generally. (shrink)

El punto de partida de este trabajo es que las distintas definiciones de democracia,tanto las de raíz liberal como las más radicalmente opuestas al liberalismo, no han analizadocríticamente la dimensión patriarcal de la democracia moderna. En la primera parte delartículo se estudian los orígenes epistemológicos y políticos de la democracia y se subrayael carácter patriarcal de la democracia moderna como una rasgo estructural presente en lasteorías del contrato sociaL En la segunda parte se analiza la fundamentación epistemológicade la democracia paritaria (...) hoy desde el paradigma político de la igualdad y desde el dela diferencia. En la tercera parte, se sostiene que no es posible ampliar la democracia y laciudadanía para las mujeres si éstas no se construyen como un actor social con capacidadde intervención social y de negociación política. (shrink)