Sophia Harlid (IMAGE) Umea University Caption Sophia Harlid, researcher at Department of Radiation Sciences, Umeå University, Sweden. Credit Mattias Pettersson. Usage Restrictions No restrictions. License Public Domain 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.