SARS-CoV-2 infection might cause a critical disease, and patients’ follow-up is based on multiple parameters. Oxidative stress one of the key factors in pathogenesis COVID-19 suggesting that its level could be prognostic marker. Therefore, we elucidated predictive value serum non-enzymatic total antioxidant capacity (TAC) newly introduced TAC/lymphocyte ratio COVID-19. We included 61 (n = 27 wa...

For a partially degradable (PD) channel, the channel output state can be used to simulate the degraded environment state. The quantum capacity of a PD channel has been proven to be additive. Here, we show that the private classical capacity of arbitrary dimensional PD channels is equal to the quantum capacity of the channel and also single-letterizes. We prove that higher rates of private class...

A channel capacity is non-convex if the capacity of a mixture of different quantum channels exceeds the mixture of the individual capacities. This implies that there is a concrete communication scenario in which a sender can increase the transmission rate by forgetting which channel acts on the channel input. Previously, this surprising property had only been shown for the quantum capacity. Her...