background methicillin -resistant staphylococcus aureus (mrsa) is associated with serious infections. having the ability of biofilm-formation decrease their susceptibility to antibiotics. objectives the aim of this study was to determine the prevalence of biofilm formation among mrsa isolated from nasal carriers in the beheshti teaching hospital in kashan, iran. materials and methods a cross-se...

Antimicrobial susceptibility testing in the clinical laboratory is becoming more complex. We can no longer be concerned with simply determining accurate susceptibilities. Microbiologists must now possess knowledge of bacterial-resistance mechanisms and implement procedures to reliably detect them. The traditional susceptibility test will most likely need to be supplemented with testing methods ...

The magnetic susceptibilities of ternary rare earth compounds with the CaAl2Si2 structure were measured in the temperature range of 80 to 290 K. YbZn2Sb2 and the compounds YbZn2_a;CuIX2 (X = P, As) with x < 1 show intermediate valence behaviour, that is a nonintegral occupancy of the 4f shell. Of the compounds EuZn2X2 (X = P, As, Sb) the results for those with X = P or Sb show good agreement wi...

Mycoplasmosis caused by mycoplasma has immensely reduced the performance of commercial animal husbandry, along with prevalence and increase of drug resistance in mycoplasma, thus new agents and therapies are urgently needed. Triclosan is a broad spectrum antimicrobial agent with a favorable safety profile. In the present study, we tested the antimycoplasmal activity of triclosan alone, as well ...

using a magnetic property measurement system (mpms), we measure magnetic susceptibility continuously at frequencies from 0 to 1000 hz for three different superparamagnetic (sp) grain sizes of magnetite (5nm, 7 nm and 10 nm) suspended in hydrocarbons (ferrofluids). our results confirm non-zero values of frequency-dependent susceptibility in the fine tail of nano-sized grains and provide new empi...