conclusions our findings indicate that probiotic bacterial strains of lactobacillus have a significant inhibitory effect on the growth of p. aeruginosa ptcc 1430. the antimicrobial potency of this combination can be useful for designing and developing alternative therapeutic strategies against p. aeruginosa infections. results the results showed a significant effect of cfs on the growth of p. a...

The in vitro activity of imipenem in combination with fosfomycin against 17 clinical isolates of methicillin-resistant Staphylococcus aureus from hospitalized patients was investigated by checkerboard and time-kill studies. Of the 17 strains tested, checkerboard studies revealed synergy in 14(82.3%)and indifference in 3(17.6%): the time-kill studies also revealed synergy in 14 of 14 strains at ...

We investigate numerically the dynamics of unstable gravity driven three-dimensional thin liquid films on hydrophilic-hydrophobic patterned substrates. We explore longitudinally striped and checkerboard arrangements. Simulations show that for longitudinal stripes, the thin film can be guided preferentially on the hydrophilic stripes, while fingers develop on adjacent hydrophobic stripes if the ...

This study examined the in vitro effects of polymyxin B, tigecycline, and rifampin combinations on 16 isolates of extensively drug-resistant Acinetobacter baumannii, including four polymyxin-resistant strains. In vitro synergy was demonstrated in 19 (40%) of a possible 48 isolate-antibiotic combinations by time-kill methods, 8 (17%) by checkerboard methods, and only 1 (2%) by Etest methods. The...

In vitro interaction of anidulafungin with voriconazole was tested by a microdilution broth checkerboard technique and an agar diffusion method against 30 Aspergillus clinical isolates belonging to five different species. By using a complete inhibition endpoint, indifferent interactions were observed for 97% of the isolates by the checkerboard technique (FIC index from 0.5 to 2) and for 100% of...

After adaptation by an observer to a patch of gradually increasing (or decreasing) luminance, a steady test patch appeared to be gradually dimming (or brightening). These aftereffects did not transfer interocularly. Adaptation to a checkerboard, in which the white squares gradually dimmed while the black squares gradually brightened, gave an aftereffect that was a pattern of intersecting diagon...

This paper presents a Schelling-type checkerboard model of residential segregation formulated as a spatial game. It shows that although every agent prefers to live in a mixed-race neighborhood, complete segregation is observed almost all of the time. A concept of tipping is rigorously defined, which is crucial for understanding the dynamics of segregation. Complete segregation emerges and persi...