Daniel Ahlberg, University of Gothenburg (IMAGE) University of Gothenburg Caption This is Daniel Ahlberg of the Department of Mathematical Sciences of the University of Gothenburg. Credit University of Gothenburg Usage Restrictions None 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.