Beer is one of the world's most popular drinks, and one of the clearest signs of a good brew is a big head of foam at the top ...

Commercially available defined substrate technology for the enumeration of coliform bacteria was investigated for its applicability to waste activated sludge (WAS) solids. The defined substrate, ...

It was found that blending samples for 1.5 minutes at 19 000 rpm at 4°C in a mixture of chemicals (resulting in concentrations of $10^ {-6}$ M Zwittergent 3-12, $10^ {-3}$ M EGTA, 0.01 M Tris buffer, ...