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Lake Capital, a Chicago and London-based private investment firm,has acquired Nth Degree Inc., a face-to-face marketing company.

Paula Rae Rockstroh has been named general manager and JenniferAndre has been named director of special events for the RestaurantAssociates food service operations at the Museum of Science andIndustry.

Talk magazine editor-in-chief Tina Brown will speak at the May 3Chicago Advertising Federation luncheon at the Sheraton Chicago Hoteland Towers. For ticket info, call (847) …