Study of Baicalin toward COVID-19 Treatment: In silico Target Analysis and in vitro Inhibitory Effects on SARS-CoV-2 Proteases

Negative impacts of COVID-19 on human health and economic and social activities urge scientists to develop effective treatments.Baicalin is a natural flavonoid, extracted from a traditional medicinal plant, previously reported with anti-inflammatory activity.In this study, we used pharmacophore fitting and molecular docking to screen and determine

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IR finite S-matrix by gauge invariant dressed states

Abstract Dressed states were proposed to define the infrared (IR) finite S-matrix in QED or gravity.We show that the original Kulish-Faddeev dressed states Mono LED are not enough to cure the IR divergences.To illustrate this problem, we consider QED with background currents (Wilson lines).This theory is exactly solvable but shares the same IR prob

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