Hungarian Academy of Sciences 2 articles published in JoVE Chemistry High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal Satoshi Aya1, Péter Salamon2, Daniel A. Paterson3, John M. D. Storey3, Corrie T. Imrie3, Fumito Araoka1, Antal Jákli4, Ágnes Buka2 1RIKEN Center for Emergent Matter Science (CEMS), 2Institute for Solid State Physics and Optics, Wigner Research Center for Physics, Hungarian Academy of Sciences, 3Department of Chemistry, School of Natural and Computing Sciences, University of Aberdeen, 4Chemical Physics Interdisciplinary Program and Liquid Crystal Institute, Kent State University This protocol demonstrates the preparation of a photorheological material that exhibits a solid phase, various liquid crystalline phases, and an isotropic liquid phase by increasing temperature. Presented here are methods for measuring the structure-viscoelasticity relationship of the material. Behavior The Other End of the Leash: An Experimental Test to Analyze How Owners Interact with Their Pet Dogs Giulia Cimarelli1,2,3, Borbála Turcsán1,4, Friederike Range1,2, Zsófia Virányi1,2 1Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine of Vienna, Medical University of Vienna, University of Vienna, 2Wolf Science Center, Messerli Research Institute, University of Veterinary Medicine of Vienna, Medical University of Vienna, University of Vienna, 3Department of Cognitive Biology, University of Vienna, 4Research Centre for Natural Sciences, Institute of Cognitive Neuroscience and Psychology, Hungarian Academy of Sciences This article presents eight different experimental tasks, mirroring the everyday life of dogs and owners, used to analyze how owners interact with their dogs in a standardized way. The tasks included both positive (e.g. play) and negative (potentially stressful) situations (e.g. physical restriction).
