This paper examined a set of over two thousand crypto-coins observed between 2015 and 2020 to estimate their credit risk by computing probability death. We employed different definitions dead coins, ranging from academic literature professional practice; alternative forecasting models, scoring models machine learning time-series-based models; horizons. found that the choice coin-death definitio...

biological and cultural. She sees clearly how the medieval world has been used by later writers, from the Renaissance onwards, with their own agendas for reform and their own reasons for writing the medieval world in particular ways. Thanks to Green's work, the medieval medical world is a far more clear, but also more varied, landscape than it was before; medical, social, and gender historians ...

The largest ensemble of qubits which satisfy the general transformation of equal superposition is obtained by different methods, namely, linearity, no-superluminal signalling and non-increase of entanglement under LOCC. We also consider the associated quantum random walk and show that all unitary balanced coins give the same asymmetric spatial probability distribution. It is further illustrated...