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A comparison was made between the catalytic properties of β-galactosidase from Penicillium canescens and Aspergillus oryzae using lactose in two-phase systems of an organic solvent and water. It was shown that the ability of β-galactosidase preparations to synthesize galactooligosaccharides depends on the type of the solvent used (cyclohexane, hexane, toluene) and on its proportion in the two-phase...
We have studied the influence of direct current and alternating current fields on the charge transport at temperatures at about 50 K below the fast-proton phase transition in K3H(SO4)2 doped with Cu2+, Mn2+ and CrO 43− ions. We have recorded a signal that behaved like a random telegraph signal and explain this phenomenon in terms of nonlinear phase-kink solitons pinned at the defects.
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