Carla Tardi is a technical editor and digital content producer with 25+ years of experience at top-tier investment banks and money-management firms. Robert Kelly is managing director of XTS Energy LLC ...

Carbachol-evoked contractions of descending colon strips from patients with CC (A, B). Dose-response effects of carbachol on the amplitude of contraction of circular (Aa) and longitudinal (Ba) muscle ...

It normally takes about 21 days for chicken embryos to develop into chicks. By observing chicken hindlimb formation, a research team has just discovered that the mechanism at the origin of embryonic ...

OWING to absence from London I have only now seen Mr. Gomme's letter in NATURE of Sept. 22. I believe that among experts there is fuller agreement than either Mr. Gomme or the compilers of the “World ...