1. Esra Ozdenerol, University of Memphis, Memphis, TN 38152-3120 or .
2. Ying Huang, University of Manitoba, Winnipeg, MB R3T 5V4, Canada or .
3. Farid Javadnejad, Oregon State University, Corvallis, OR 97331 or .
4. Anzhelika Antipova, University of Memphis, Memphis, TN 38152-3120 or .