β Scribed by M.F. Cardinal; M. Lovino; D.L. Bernik
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## Background Norfloxacin like other fluoroquinolones, is known to be mutagenic for __Salmonella typhimurium__ TA102 strain. This mutagenic effect is due to free oxygen radicals (ROS), because it is inhibited by antioxidants such as Ξ²-carotene and naturally occurring antioxidants of __Roheo discolo
The behavioural effects induced in mice by the chronic administration of (+)-methamphetamine (MA) and (+)-amphetamine (A) at three dosages were studied under identical research conditions. The results indicated that MA exerted greater central excitation than A. At the dosage 0.64 mg/kg quiescence wa
Identical products of the intramolecular cyclization of pyridine derivatives were shown to be formed in solution and in the gas phase under electron impact conditions. The analogies and contradictions of this reaction proceeding in two di β erent phases were studied.