Marina Grande '94 has been nominated for the position of Young Alumni Trustee, with her term to begin at Commencement 1998.     A native of Brazil, Grande specializes in South American equities analysis for the Union Bank of Switzerland. She previously worked for Bear Stearns, a Wall Street investment firm.     While at Colby, Grande was awarded the Neskowin Scholarship (given by Colby parents Karen and Leon Allen, who also established the Allen Family Chair in Latin American Literature), and she was a Dana Bixler Scholar.     In accordance with the by-laws of the Alumni Association, other nominations may be made by petition to the executive secretary of the Alumni Council with the signatures of one percent of the members of the association on or before April 1. In the event no nominations are submitted, Grande will be declared elected by the chair of the Alumni Council.