Examines the relationship of intelligence to the internal and external world of the individual and to the experience of the individual. Also examines competing models and metaphors that have motivated questions about these relationships. Indicates that a theory that addressed all three areas simultaneously is the triarchic theory. (JN)

Discussed is the discovery which may help to explain epidermal growth factor effects on the cell skeleton. The role of a protein called profilin in the regulation of the microfilament system is described. (CW)

Presents the contention that in light of a historical perspective to technology and growth an optimistic view of the possibility for continuous technological development is not foolish. (GS)