A variable undergoing logistic growth initially grows exponentially. After some time, the rate of growth decreases and the function levels off, forming a sigmoid, or s-shaped curve. For example, an ...

Tyee contributing editor Andrew Nikiforuk is an award-winning journalist whose books and articles focus on epidemics, the energy industry, nature and more. Exponential growth looks like a jet taking ...

The explosive spread of coronavirus can be turned to our advantage, two infectious disease experts argue: “But only if we intervene early. That means now.” By Siobhan Roberts In early December, Britta ...