S'identifier

Hungarian Academy of Sciences

3 ARTICLES PUBLISHED IN JoVE

Behavior

The Other End of the Leash: An Experimental Test to Analyze How Owners Interact with Their Pet Dogs

Giulia Cimarelli^1,2,3, Borbála Turcsán^1,4, Friederike Range^1,2, Zsófia Virányi^1,2

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).

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.

Examination of Propylene Carbonate as a Sustainable Green Solvent for Suzuki Cross-Coupling Reactions under Microwave and Conventional Circumstances

Balázs László Pásztor¹, Andrea Czompa¹, Jennifer Sahar Alizadeh¹, István M. Mándity^1,2

¹Department of Organic Chemistry, Faculty of Pharmacy, Semmelweis University, ²MTA TTK Lendulet Artificial Transporter Research Group, Institute of Materials and Environmental Chemistry, Research Center for Natural Sciences, Hungarian Academy of Sciences

Propylene carbonate has been shown to be a prominent green solvent in Suzuki cross-coupling reactions. Furthermore, the microwave reactor is demonstrated to afford enhanced reaction yields with decreasing reaction times. Using either a microwave reactor or conventional heating, propylene carbonate is sustainable for the cross-coupling reaction.