UNO's Stalder Named NCC Wrestler of the Week    Sophomore 174-pounder Zach Stalder of Nebraska-Omaha has been named the NCC Wrestler of the Week by the conference office.     Stalder, a native of Omaha, Neb., went 4-0 in winning the Nichols Open in Fort Dodge, Iowa. Stalder defeated Selgrade (unattached), Zeisman (Iowa State) 6-5, Carter (Iowa Central C.C.) and Parks (Iowa State) 7-3. Parks is the starter for the Cyclones at 174 pounds.    Others nominated: Adam Kramer, Minnesota State, Mankato; Dustin Darveaux,  St. Cloud State.