Diana Fernández Calvo

Diana Bratu

S. Fernández-Merchant †

Even the most superficial glance at the vast majority of crossing-minimal geometric drawings of Kn reveals two hard-to-miss features. First, all such drawings appear to be 3-fold symmetric (or simply 3-symmetric) . And second, they all are 3-decomposable, that is, there is a triangle T enclosing the drawing, and a balanced partition A,B,C of the underlying set of points P , such that the orthog...

Social familiarity affects Diana monkey (Cercopithecus diana diana) alarm call responses in habitat-specific ways.

Male Diana monkeys produce loud and acoustically distinct alarm calls to leopards and eagles that propagate over long distances, much beyond the immediate group. Calling is often contagious, with neighbouring males responding to each other's calls, indicating that harem males communicate both to local group members and distant competitors. Here, we tested whether male Diana monkeys responding t...

Diana and Selected Applications *

New developments concerning the extension of the Feynman diagram analyzer DIANA are presented. We discuss new graphics facilities, different approaches to automation of momenta distribution and parallel processing facilities. Furthermore applications to t ¯ t production and Bhabha scattering are shortly discussed. The project called DIANA (DIagram ANA-lyzer)[1] for the evaluation of Feynman dia...

Evaluating the Calvo Model of Sticky Prices

This paper studies the empirical performance of a widely used model of nominal rigidities: the Calvo model of sticky goods prices. We describe an extended version of this model with variable elasticity of demand of the differentiated goods and imperfect capital mobility. We find little evidence against standard versions of the model without the extensions, but the estimated frequency of price a...