1he circulation in the Southern Ocean is dominated by the Antarctic Circumpolar Current (ACe), which is the only current that flows completely around the globe. The ACC is a complex system consisting of narrow regions of sharp horizontal density gradients, which extend through the entire water column as frontal bands separated by broad zones with less intense gradients. Meridional excursions fr...

Fluid secretion by the salivary glands of the blowfly Calliphora is regulated by 5-hydroxytryptamine (5-HT) (Berridge, 1970, 1972; Berridge & Prince, 1972). The action of 5-HT is apparently mediated by adenosine 3',5'-monophosphate (cyclic AMP) which thus functions as an intracellular 'second messenger' as has been postulated in many other systems (Robison, Butcher & Sutherland, 1968). Exogenou...

The pairing of linguistic form to discourse function has been much discussed in the literature over the last several years. Prince (1996) phrases the question thusly: what is it exactly that discourse functions are associated with? Particular form-function pairings do not appear to be cross-linguistically universal; a given linguistic – that is, syntactic – form may be associated in different l...