Alex Dajkovic, Johns Hopkins University (IMAGE) Johns Hopkins University Caption Alex Dajkovic, lead author on the paper and a former postdoctoral fellow at Johns Hopkins. He is now a researcher at Institut Curie in Paris. Credit Alex Dajkovic 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.