The British oil company said that a Russian court had barred Robert Dudley, the head of its troubled Russian joint venture, from office for two years.

Chris Albrecht, the former chief executive of HBO, said that he had stepped down from his role running IMG’s media and entertainment business.

The union representing pilots at United Airlines urged Glenn F. Tilton to resign, accusing him of steering the carrier down a path to poor customer service, employee morale and financial performance.

The union representing pilots at United Airlines urged Glenn F. Tilton to resign, accusing him of steering the carrier down a path to poor customer service, employee morale and financial performance.

The story of the resignation of Steven Rattner, a managing director at Credit Suisse, started with an extramarital affair and ended up on the internet.

The Swiss bank UBS said that David Aufhauser, general counsel for its investment bank and for the Americas, had resigned.

A trans-Atlantic culture clash at Alcatel-Lucent, the French-American telecommunications equipment maker, hit home Tuesday when the company’s top two executives said they would step down.

Alcatel-Lucent posted a second-quarter net loss and said its chief executive and its chairman would step down by the end of the year.

Kevin Johnson’s exit comes as Steven A. Ballmer, Microsoft’s chief executive, is shaking up top-level staff in a bid to improve Microsoft’s Internet search and ad business.

Lee Kun-hee, was convicted of tax evasion charges on Wednesday but was spared prison after the court suspended his three-year sentence.