Comparing Equations (IMAGE) Duke University Caption The list of equations required to model three plasmids being swapped in one bacterial species using the old method (left) versus the new, simplified model's equations (right). Credit Teng Wang, Duke University 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.