Objective(s): This study aimed to investigate the effect of zinc oxide nanoparticles (ZnO-np) on biofilm formation and expression of the flu gene in uropathogenic Escherichia coli (UPEC) strains. Materials and Methods: Minimum inhibitory concentration (MIC) of ZnO-np was determined by agar dilution method. The effect of MIC and sub-MIC concentrations of ZnO-np on biofilm formation were determin...

This paper presents a new object-oriented framework for optimization based on evolutionary computation techniques to address NP-hard problems. At present, the NP-Opt is customized to deal with five classes of problems. The level of code reutilization is high and allows the adaptation to new problems very quickly, just by adding a few new classes to the framework. The structure of the classes an...

Uniform Generation of NP-witnesses using an NP-oracle Mihir Bellare Oded Goldreichy Erez Petrankz May 1998 Abstract A Uniform Generation procedure for NP is an algorithm which given any input in a xed NP-language, outputs a uniformly distributed NP-witness for membership of the input in the language. We present a Uniform Generation procedure for NP that runs in probabilistic polynomial-time wit...