This paper makes a distinction between conversation and communication (signal transfer which may, or may not, be conversational) . The word " conversation" is given an interpretation, which ref.1nes its COIIBDonsense meaning. conversation maintains the autonor;Jy or identity of systems and, also , generates independencies between systems (human , societal , or others), which is a prerequisite o...

Togetherness, molecular style O ne way to switch the function of a cell surface protein is to force it into a different membrane domain. On page 647, Nicholson and Stanners describe a second method: diluting it within its domain with an abundance of defective partners. The approach might provide a way to neutralize a protein that is over-produced in most cancers. Some surface proteins lie compl...

The larvae of fruit flies produce pheromones to control whether they are attracted to others of the same species or whether they avoid members of a different species.