This research aims to gain insight on the perception that minors have of viral challenges as an entertainment format and the motivations behind their participation in this digital entertainment phenomenon. A qualitative study was performed by way of twelve focus groups with sixty-two minors aged between eleven and seventeen years from Spain. For minors, viral challenges represent a form of entertainment in an interactive context, perceived as innocuous, ephemeral content from which nothing more is required than for the user to (...) have a good time. This appears to lead the minors interviewed to ignore the meaning and origin of the viral challenges they visualise and share, neither do they regard this to be necessary. It is also important to underline the relativisation of risk and danger in favour of spectacularisation and virality. (shrink)

: This work proposes the methodology to obtain a correlation between the particle size of the rock material and the point load test index, in order to characterize the materials, present in mining projects in terms of resistance. For a correct development of mining activities, both open pit and underground, it is important to determine the compressive strength of the rocks, since, through it, geomechanical classifications are obtained, and thus calculate safety factors to define stabilization and/or fortification systems for mining (...) operations. This work was developed on the basis of samples from a geological formation and subsequent preparation of specimens, then they were subjected to physical tests, which can be carried out without problem in the field, and finally, the respective relationships were obtained. The results are encouraging and the equations are proposed to characterize the rock and achieve the proposed objective. Keywords: Rock, Crushing, Classification, Compression. (shrink)

El proyecto “filosófico-literario” de Martha Nussbaum presenta dúas grandes fases o momentos. En el primero, la literatura y la filosofía moral dialogan; mientras que, en el segundo, se proponen “usos políticos” de la literatura: esta tiene que ser una parte central, nunca la única, de la formación del ciudadano. De este modo, el proyecto de Nussbaum aparece como una forma de criticismo ético. El artículo se propone analizar y rechazar una de las críticas de Richard Posner a toda forma de (...) criticismo ético: su negación de que la evaluación ética sea legítima al abordar la literatura y su afirmación de que el contenido moral de las obras es un asunto poco relevante. Se busca argumentar en contra de esta posición autonomista radical (o de desapego-estético) de Posner y mostrar cómo el proyecto de Nussbaum, incluso, resulta compatible con una posición autonomista, pero moderada. (shrink)