Professor Gašper Tkačik at ISTA (IMAGE) Institute of Science and Technology Austria Caption Professor Gašper Tkačik. Among other things, Tkačik and his research group at the Institute of Science and Technology Austria (ISTA) aim to develop theoretical concepts about networks found in real organisms and how these networks evolve. Credit © ISTA Usage Restrictions Free to use when reporting about ISTA License Original 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.