Video Recording for a Hemihelix with Multiple Perversions (video) PLOS Share Print E-Mail Loading video... Caption Both ends are free to rotate. Credit Liu J, Huang J, Su T, Bertoldi K, Clarke DR (2014) Structural Transition from Helices to Hemihelices. PLoS ONE 9(4): e93183. doi:10.1371/journal.pone.0093183 Usage Restrictions CC-BY Share Print E-Mail 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.