New Tyrannosaur Relative Tromerosaurus Sparks Family Tree Debate - 조선일보

Tyrannosaurs sit at the top of the food chain in the popular imagination, but a newly described fossil from Alberta, Canada, suggests that a much smaller predator may have fed on the carcass of Albertosaurus sarcophagus, a tyrannosaur relative. Atrociraptor scavenge the carcass of Albertosaurus along the edge of a river floodplain. Image credit: Joshua Adam Doyon.

New work helps show why the dream of high-temperature superconductivity has been so hard to realize: a quantum brawl between superconductivity and a competing state of matter. The finding resulted from a collaboration that included theorists with the Simons Foundation's Flatiron Institute in New York City and experimentalists at Quebec's Institut national de la recherche scientifique (INRS). The researchers investigated a copper alloy called a 'cuprate' as it transitioned from the superconducting state to an enigmatic neighboring state of matter called the 'pseudogap.' Using laser pulses and computer simulations, they were able to understand the behavior of electrons inside the cuprate. In a paper published October 20 in Nature Physics , the team shows how the two states — superconductivity and the pseudogap — wrestle for dominance. That finding challenges the idea that superconductivity in cuprates merely builds upon a pre-existing pseudogap phase. "We're really showing that these states are competing," says study co-author Olivier Gingras , an associate research scientist at the Flatiron Institute's Center for Computational Quantum Physics (CCQ).

Italian researchers are exploring knitted textiles and soft robotics to develop new wearable assistive technologies. Leonardo Cappello, Assistant Professor at the BioRobotics Institute of Scuola Superiore Sant'Anna in Pisa, presents on textile wearable robotics.