Tuning Raid performance has the air of a black art to storage administrators, with the perception that it can do more harm than good. Most consider the job done once the Raid level is selected. But, it is possible to fine-tune some Raid parameters to anticipate application storage demands and improve performance.
constitutive enzyme an enzyme that is made all the time at a constant rate, unaffected by inducers. enzyme
beta-lactamase. [-lakâ²tÉmÄz]. Etymology: lactam, a cyclic amide, ase, enzyme. a bacterial enzyme that catalyzes the hydrolysis of the beta-lactam ring of some penicillins and cephalosporins, producing penicilloic acid and rendering the antibiotic ineffective.Î²-lacÂ·taÂ·mase/ (lakÂ´tah-mÄs) any of a group of enzymes, produced by almost all gram-negative bacteria, that hydrolyze the Î²-lactam ring of penicillins and cephalosporins, destroying their antibiotic activity. Individual enzymes may be called penicillinases or cephalosporinases based on their specificities.