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One of the most prevalent relationships for effective stresses on unsaturated soils was proposed by Bishop in the middle of the last century. However, only recently Bishop's effective stress equation has been implemented in various constitutive models for unsaturated soils. These models have the advantage of naturally including the hydromechanical coupling that has been experimentally observed on these materials. Unfortunately, the problem of properly evaluating Bishop's parameter v still remains unsolved. This paper presents the results of a solid-porous model used to determine the value of Bishop's parameter v and evaluate the strength of unsaturated soils. These theoretical results are compared with a series of triaxial test performed on a silty sand subjected to different suctions in wet and dry paths. These comparisons show that the porous model proposed herein can be used to estimate the strength of unsaturated soils for both the wetting and the drying paths.

The reflections that articulate this intervention are based on an attempt to recover some communicational experiences linked to digital culture, thought of as bodily practices and disciplining exercises; this with the aim of making visible some nutritional and health practices produced in the privacy of intimate spaces (living rooms, bedrooms, bathrooms) that are framed by the screens of our devices. Some records or digital expressions cease to be solely –recalling Joan Fontcuberta’s theory regarding postphotography– messages or testimonies to become figurations that make visible new forms aimed at modulating the docility of bodies, as conceived by Michel Foucault. gestated on the networks and in the mass media. For this essay, we will review some visual proposals coming mainly from feminist art, which are critically opposed to the proliferation of images of exclusion gestated on the networks and in the mass media. The reflections on studies presented here are mainly framed in disciplinary fields such as body studies, visual studies, and gender studies.

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