How we get around

Whether or not we’re aware of it, humans — animals in general — constantly use environmental cues to navigate from one place to another. We choose a feature from the landscape and use it to guide our behavior, gathering and computing information about our surroundings. It’s a process so old and so essential for survival…

‘What wound did ever heal but by degrees?’ delayed wound healing due to gene mutations

“Wound healing is one of the most complex biological processes,” write Professor Kazumitsu Sugiura and Dr Kenta Saito from Fujita Health University, Japan, in their article recently published in Nature’s Scientific Reports. As countless researchers in the field have noted, several automated coordinated biological activities take place during wound healing, from stopping the bleeding to…

Why False Positives Matter, Too

In the high-stakes world of coronavirus testing, one mistake has taken center stage: the dreaded false negative, wherein a test mistakenly deems an infected person to be virus-free. These troublesome results, experts have said, can deprive a person of treatment and embolden them to mingle with others, hastening the spread of disease. But false negatives…