usually
131gallic acid — Usually made from tannic acid or nutgalls; used locally as an astringent, for the same purpose as tannic acid. * * * gal·lic acid .gal ik , .gȯ lik n a white crystalline acid C7H6O5 found widely in plants or combined in tannins and used esp. in… …
132Non-critical string theory: Lorentz invariance — Usually non critical string theory is considered in frames of the approach proposed by Polyakov [1]. The other approach has been developed in [2] [3] [4]. It represents a universal method to maintain explicit Lorentz invariance in any quantum… …
