Professor Sun Nyunt Wai (IMAGE) Umea University Caption This is last author and project leader professor Sun Nyunt Wai. Credit Mattias Pettersson Usage Restrictions Please ask the contact person before publication License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.