17 Recent studies have shown that chromogenic cephalosporin tests are inferior to disc zone edge tests in 18 detecting penicillinase in Staphylococcus aureus isolates resulting in a change to CLSI and EUCAST 19 guidelines in 2012. We sought to confirm these findings using Australian isolates and compare the 20 performance of the CLSI and EUCAST methods which use different disc strengths, penici...

17 Recent studies have shown that chromogenic cephalosporin tests are inferior to disc zone edge tests in 18 detecting penicillinase in Staphylococcus aureus isolates resulting in a change to CLSI and EUCAST 19 guidelines in 2012. We sought to confirm these findings using Australian isolates and compare the 20 performance of the CLSI and EUCAST methods which use different disc strengths, penici...

background and objectives: klebsiella pneumoniae , one of the important causes of nosocomial infections, is the most common extended spectrum β-lactamases (esbls) producing organism. esbls are defined as the enzymes capable of hydrolyzing oxyimino-cephalosporins, monobactams and carbapenems. the aims of this study were to identify esbl-producing k. pneumoniae isolates and detect their antibioti...

Rolling contact fatigue failure is one of the main damages in railway wheels caused by cyclic rolling with rails. This internal defects such as nonmetallic inclusions or voids and may occur heavy haul freight car wheels. The subsurface crack propagation behaviors are evaluated twin-disc-type tests using test specimens artificial defects. Finite element analyses involving simulated also conducte...

Mechanical behavior of 3D-printed poly(lactic) acid material is an open topic for research on the reliability assessment structures in marine and offshore industries. This article presents mechanical morphological properties specimens using laminated object manufacturing technique. The effect was experimentally investigated discs joined together to make a test specimen. specimen prepared tested...