The database of 200 million protein-structure predictions now includes homodimers, adding new biological relevance.

Divide any circle’s circumference by its diameter and you get pi. But what, exactly, are its digits? Measuring physical ...

Cardiovascular exercise (cardio), also called aerobic exercise, uses oxygen to fuel movement and raise heart rate. It often uses large muscle groups, such as the legs, back, or chest. Weight loss ...

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