A response time that does not exceed 400 milliseconds (4/10ths of a second). Conceived by Walter Doherty and Ahrvind Thadani, the Doherty threshold is an objective for keeping the user thoroughly ...
Michigan health officials are adopting a new definition of COVID-19 school outbreaks that lifts the threshold from two cases to three associated with a school. The Michigan Department of Health and ...
The exact moment when Earth will reach its tipping points—moments at which human-induced climate change will trigger ...
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