Dr. G. E. Pilgrim, F. R. S

C E N T E R F O R R E S E a R C H I N L a N G U a G E

A 3-layer back propagation network is used to implement a pattern association task which learns mappings that are analogous to the present and past tense forms of English verbs, i.e., arbitrary, identity, vowel change, and suffixation mappings. The degree of correspondence between connectionist models of tasks of this type (Rumelhart & McClelland, 1986; 1987) and children’s acquisition of infle...

B R I E F N O T E S

Cultured cells cloned from the C1300 neuroblastoma have been shown by several laboratories to extend neurites (1-6) and to accumulate nervespecific enzymatic activities (7) when grown under conditions in which cell division is inhibited. Study of this system has been stimulated by the hope that it might serve as an in vitro model of nerve cell differentiation. Many of the neurite-inducing agent...

G a M E S a N D L O G I C S F O R I N F O R M at I O N a L C a S C a D E S Msc in Logic

Dr. R. I. S. Gordon

Dr. Gary E. R. Hook

A fter almost three decades, 109 volumes, hundreds of thousands of pages, and immeasurable hours of editing and review, EHP is saying goodbye to it's editor-in-chief, Gary Hook. Hook is retiring from the National Institute of Environmental Health Sciences (NIEHS) and his position as editor of EHP, but not from public service or from the endeavor to communicate science to the global community, a...