The synthesis and characterization of a calcium pyrazolonato complex is reported. X-ray diffraction (XRD) single crystals revealed an octahedral geometry with two axial solvent ligands. Analysis the bulk sample by means microcrystal electron (micro-ED) measurement polymeric pentagonal bipyramidal coordination joined via central Ca2O2 ring water During micro-ED measurement, loss was observed res...

Abstract Optical activity, also called circular birefringence, is known for two hundred years, but its applications topological photonics remain unexplored. Unlike the Faraday effect, optical activity provokes rotation of linear polarization light without magnetic effects, thus preserving time-reversal symmetry. In this work, we report a direct measurement Berry curvature and quantum metric pho...

A 46-year-old man with long-standing, poorly controlled diabetes is hospitalized for right knee monoarthritis after trauma. His clinical evaluation found joint deformity, synovitis in the and absence of multiple toes due to a history amputation. With radiological that showed bone destruction synovial fluid analysis ruled out infectious causes microcrystal arthritis, diagnosis Charcot neuroarthr...