The origin of vertebrate teeth and evolution of sensory exoskeletons

The origin of vertebrate teeth and evolution of sensory exoskeletons

Abstract The earliest record of tooth antecedents and the tissue dentine1,2, an early-vertebrate novelty, has been controversially represented by fragmentary Cambrian fossils identified as Anatolepis heintzi3,4,5. Anatolepis exoskeletons have the characteristic tubules of dentine that prompted their interpretation as the first precursors of teeth3, known as odontodes. Debates over whether Anatolepis is a legitimate vertebrate6,7,8 […]

Raman scattering of rhenium for secondary pressure calibration

Allison Pease, Claire Zurkowski, Stella Chariton, Heidi N. Krauss, Daniel Sneed, Vitali Prakapenka, Bruce Baer, Susannah M. Dorfman, Earl F. O’Bannon; Raman scattering of rhenium for secondary pressure calibration. J. Appl. Phys. 21 May 2025; 137 (19): 195901.  

High Pressure Synthesis of Rubidium Superhydrides

Kuzovnikov, Mikhail A., Busheng Wang, Xiaoyu Wang, Tomas Marqueño, Hannah A. Shuttleworth, Calum Strain, Eugene Gregoryanz, Eva Zurek, Miriam Peña-Alvarez, and Ross T. Howie. “High Pressure Synthesis of Rubidium Superhydrides.” Physical Review Letters 134, no. 19 (2025): 196102.  

Exciton-phonon coupling and phonon-assisted exciton relaxation dynamics in In1-xGaxP quantum dots

Abstract Quantum dots leverage quantum confinement to modify the electronic structure of materials, separating electronic transitions from the composition of the corresponding bulk material. With ternary quantum dots, the composition may be varied continuously so that both composition and size may be used to tune the bandgap. As composition influences electron-phonon coupling which in turn […]

Structure of ice VII with Hirshfeld atom refinement

Gajda, R., Chodkiewicz, M., Zhang, D., Nguyen, P., Prakapenka, V. & Wozniak, K.,  Structure of ice VII with Hirshfeld atom refinement,  (2025). IUCrJ, 12.  https://doi.org/10.1107/S2052252525002581