Severe disease was defined as requiring mechanical ventilation, requiring oxygen, a peripheral oxygen saturation (SpO2) ≤ 94% on room air, or tachypnea (respiratory rate ≥ 24 breaths/minute). Mild-to-moderate disease was defined as having SpO2 > 94% and respiratory rate < 24 breaths/minute ...
47) The 4th physics magic number: 2, 8, 20 28, 50, 82, 126 In nuclear physics, a "magic number" is a number of nucleons such that they are arranged into complete shells within the atomic nucleus.48) Sum of the faces in an octahedron & an icosahedron = 8 + 20 = 28 ...