ALSO. . .

Santa Barbara-based Tenet Healthcare Corp. said its fiscal first-quarter profit rose 21%, matching estimates, to $116 million, or 38 cents a share, from $96 million, or 32 cents, in the year-earlier period. . . . Westell Technologies Inc. of Illinois said it would buy San Jose-based Amati Communications Corp. for $394 million in stock, solidifying its position as a leading supplier of systems used to send high-speed data over telephone lines.