WORDNET makes a great number of fine-grained word sense distinctions. However, what could be seen as an advantage has often been considered a problem from a computational point of view. A great number of sense distinctions makes harder the problem of word sense disambiguation. One way to face this issue is reducing the number of senses, for example by grouping them into equivalence classes whic...

A study of the macula and crista organs of the frog's labyrinth with the use of an improved method of histological preparation has shown these endings to be more complex than heretofore believed. The structure lying over the layer of sensory and supporting cells is not a single "gelatinous" body as commonly described, but consists of two distinct layers with separate functions. In all these end...

Desert ants, Cataglyphis fortis, use a stride integrator as a distance gauge in their well-studied path integration system (while a skylight compass provides the direction gauge). To further scrutinize the mechanisms of the ant odometer, we tried to disturb the stride integrator by interfering with normal walking behaviour. First, legs that contribute to one of the two leg tripods alternately u...