Acrobats in the rooftops of Tehran

This paper seeks to analyze the political dimension of the body, and consequently the inherently political dimension of space, through the instrumental notion of situation, understood as an spatio-temporal mesh configured by bodies, practices and discourses. The political understood as the potential for action (or non-action) underlying the individual body, implies a renewed definition of a landscape that results from the body’s doing. Landscape becomes a multiple corporeality, a field of relations in which we discover ourselves enmeshed, not just placed; a field in which the limit is not frontier but bond and common dimension. A disquieting ambiguous zone appears there where the individual spatiality is born out of the body through the actualization of its political potential and entangles with others to constitute a common spatiality, political action of the multitude. The article is organized through the description of a back-and-forth movement between the revolts of Tehran in 2009 and the Iranian revolution of 1979. Also, a detour into the works of Robert Morris and Trisha Brown is required in order to understand the link between the body and the constitution of a common spatiality.

Effect of van der Waals interaction on the properties of SnS2 layered semiconductor

Nowadays, dispersion correction applied on layered semiconductors is a topic of interest. Among the known layered semiconductors, SnS2 polytypes are wide gap semiconductors with a van der Waals interaction between their layers, which could form good materials to be used in photovoltaic applications. The present work gives an approach to the SnS2 geometrical and electronic characterization using an empirical dispersion correction added to the Perdew–Burke–Ernzerhof functional and subsequent actualization of the electronic charge density using the screened hybrid Heyd–Scuseria–Ernzerhof functional using a density functional code. The obtained interlayer distance and band-gap are in good agreement with experimental values when van der Waals dispersion forces are included.