(IMAGE) Bielefeld University Caption Dr. Michael Schwake has been carrying out research at Bielefeld University since the beginning of 2013. Credit Bielefeld University Usage Restrictions Image may only be used with appropriate caption or credit. 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.