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Network formation of graphene oxide in poly(3-hydroxybutyrate) nanocomposites

Polyhydroxy alkanoates (PHAs) are bio-based, biodegradable and sustainable polyesters that are produced naturally by different types of bacteria. Recently, interest in these materials has gained strongly to broaden their application range, by modifying their properties through blending and/or using nanofillers. In this contribution we will focus on the modification of Poly[3-hydroxybutyrate] (PHB)

The place of the picture in the development of human beings.

In proposing their theories concerning the development of humans out of the higher primates, psychologists and neurologists such as Deacon, Tomasello and Donald have, each in his peculiar way, accomplished “a semiotic turn”. But these attempts leave at lot to be desired. Most notably, perhaps, they are all (with the exception of Donald, to some degree) incapable of assigning a place to the picture