Several transparent, faceted, blue to blue-green copper-bearing tourmalines containing growth tubes and cracks surrounded by sleeves of pink color were examined for this report. On the basis of ...

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Introduction: Although SARS-CoV-2 infection can lead to severe COVID-19 in children, the role of biomarkers for assessing the risk of progression to severe disease is not well established in the ...

The overall exciton transition dipole-moment, given by a weighted sum of all the transition dipoles contributing to the exciton wave function, is aligned very well with the tube axis. In this paper, ...