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WHF position statement on COVID vaccination
Thienemann, F.; Chakafana, G.; Piñeiro, D.; Pinto, Fausto J.; Perel, P.; Singh, K.; Eiselé, J.-L.; Prabhakaran, D.; Sliwa, K.The current COVID-19 pandemic has challenged health systems and communities globally. As such, several countries have embarked on national COVID-19 vaccination programmes in order to curb spread of the disease. However, at present, there isn’t yet enough dosages to enable vaccination of the general population. Different vaccine prioritization strategies are thus being implemented in different communities in ord...
Hyperfine Parameters for Muonium in Copper (I), Silver (I) and Cadmium Oxides
Cox, S.; Lord, J.; Cottrell, S.; Alberto, H.; Gil, J.; Piroto Duarte, J.; Vilão, R.; Keren, A.; Prabhakaran, D.Abstract Muonium centres in Cu2O, Ag2O and CdO show hyperfine parameters spanning four orders of magnitude. They exemplify the three different categories of hydrogen defect centre in semiconducting and dielectric solids, with very different electronic structure and electrical activity, namely quasi-atomic (possibly deep acceptor), deep donor and shallow donor.