Also . . .

A federal appeals court overturned a 1997 vote by thousands of US Airways Group Inc. reservation and gate agents to join the Communications Workers of America. The vote for union representation was a rerun election after the National Mediation Board decided the airline had interfered with employees’ free choice in the first ballot.

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MacNeal-Schwendler Corp. of Los Angeles, whose software is used to design cars, planes and spacecraft, said it will pay about $36 million for MARC Analysis Research Corp., a closely held company based in Palo Alto, to add to its line of complex-simulation software.

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Rawlings Sporting Goods Inc., the exclusive supplier of baseballs to Major League Baseball, said it expects earnings to fall short of analyst expectations in the fiscal third quarter and full year because of continued weak sales, and it has hired investment bank BancBoston Robertson Stevens to evaluate strategic alternatives for the company.

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