A 3D-printed sensor with surface-wrinkled structures detects subclinical hypocalcemia in dairy cows by measuring the calcium-to-phosphate ratio in milk. With attomolar sensitivity and rapid ...

Some older organic chemistry textbooks, however, attribute this carbocation stability to inductive effects and not to hyperconjugation. ‘It’s very common for people to say that methyl groups donate ...

While the car itself is mileage-heavy, a more-lightly-used replacement engine means it still has plenty of life left.