The time for filing an appeal commences to run and is to be computed from the entry of any of the following orders: Granting or denying a motion for judgment under Rule 50(b); or granting or denying a motion under Rule 52(b) to amend or make additional findings of fact, whether or not an alteration of the judgment would be required if the motion were granted; or granting or denying a motion under Rule 59 to alter or amend the judgment; or granting or denying a motion for a new trial under Rule 59.