a heavy tax on time or health

Investigating the functional effects of dentifrices (for example, the inhibition of acidogenesis or proteolysis) at sub-lethal concentrations is normally achieved (for acidogenesis inhibition) by exposing oral bacteria to diluted formulations and assessing changes in pH with a microelectrode, or by the chemical analyses of fermentation acids.

The Harry Potter Devotee (HPD) offers ten names that might be characters in the Harry Potter series of books (preferably from the backbenches of the wizarding world to make it more challenging), and the adult must try to guess whether they are real or fake.

Compared with the saponificated samples, ethyl esterified campesterol was detected beside the free form in the product without saponification […]