* Biogen Inc., of Cambridge, Mass., appointed Robert "Rice" PowellJr. as vice president-quality assurance and quality control.

* Neose Pharmaceuticals, of Horsham, Pa., said Stephen Rothassumed the newly created position of chairman and CEO. Roth wasthe company's senior vice president of research and chief scientificofficer. Also, Sherril Neff will join Neose as president and chieffinancial officer. And Lowell Sears, former chief financial officer forAmgen Inc., of Thousand Oaks, Calif., was elected to the Neoseboard of directors.

* Sibia Inc., of La Jolla, Calif., appointed Francis Crick to its boardof directors. Crick is Nobel Prize winner and president of the SalkInstitute.

* Arris Pharmaceutical Corp., of South San Francisco, appointedMichael Venuti as director of medicinal chemistry.

(c) 1997 American Health Consultants. All rights reserved.