The distribution of marine algae

Thesis (M.A.)--Boston Universit

Particles adsorbed at various non-aqueous liquid-liquid interfaces

Particles adsorbed at liquid interfaces are commonly used to stabilise water-oil Pickering emulsions and water-air foams. The fundamental understanding of the physics of particles adsorbed at water-air and water-oil interfaces is improving significantly due to novel techniques that enable the measurement of the contact angle of individual particles at a given interface. The case of non-aqueous interfaces and emulsions is less studied in the literature. Non-aqueous liquid-liquid interfaces in which water is replaced by other polar solvents have properties similar to those of water-oil interfaces. Nanocomposites of non-aqueous immiscible polymer blends containing inorganic particles at the interface are of great interest industrially and consequently more work has been devoted to them. By contrast, the behaviour of particles adsorbed at oil-oil interfaces in which both oils are immiscible and of low dielectric constant (ε < 3) is scarcely studied. Hydrophobic particles are required to stabilise these oil-oil emulsions due to their irreversible adsorption, high interfacial activity and elastic shell behaviour

Post-Truth as a Feature of Hypermodern Times

In this paper I will defend the idea of the success of post-truth as one of the main features of hypermodernity. In order to understand such a claim, I will start by defining “post-truth” and showing the key differences that separate it from simple manipulation or lies. I will explain how post-truth characterizes a whole new way of understanding the difference between truth and falsity: a new attitude of indifference to the sharp distinction that moderns and ancients had placed between these two notions. I will contend that this new attitude had been announced by the work of at least three recent philosophers: Harry Frankfurt, Gianni Vattimo and Mario Perniola. They give different names to “post-truth”, though, and attribute it to different causes (from anti-intellectualism to the new media and to sheer carelessness). After that, I will explore how two key aspects of hypermodernity (according to Gilles Lipovetsky), i.e. hyperindividualism and hyperconsumption, cohere with this spread of post-truth. Finally, I will summarily refer to some political and geopolitical events that corroborate the relevance of post-truth in our hypermodern world