Identification of grammars (r. e. indices) for recursively enumerable languages from positive data by algorithmic devices is a well studied problem in learning theory. The present paper considers identification of r. e. languages by machines that have access to membership oracles for noncomputable sets. It is shown that for any set A there exists another set B such that the collections of r. e....

Resistance to oxyimino cephalosporins antibiotics in Enterobacteriaceae is primarily done by the extended spectrum β-lactamases (ESBLs). Clear identification of risk factors for ESBL-producing infections is necessary. Therefore, efficient strategies can be developed to decrease outbreak of these infections. The aim of this study was to determine the antibacterial susceptibility and ESBLs patter...

This paper suggest a generic threat model for the processes in e-learning systems. After a breaf discussion of the particularities of e-learning systems from the security point of view, the role of threat models in system security is explained. Then a characterization of the attackers is made, together with the assets and entry points identification and threats identification and classification...

Fifty E. coli strains isolated from chicken flocks were analyzed to determine their resistance to antimicrobial agents used in Tehran poultry industry. By using Mast Diagnostic kit only O6 serotype was identified. Multiple resistance to antibiotics was observed in all isolates. The highest rate of resistance was against Tetracycline (94%), followed by Rifampicin (90%), and Oxytetracycline (80%)...

With the growing demand for e-learning all over the world, constant evaluation ofits curriculumis incumbent upon institutions which aimto be competitive in thismarket.  To this end, the present study employs SWOT (Strengths, Weaknesses, opportunities, Threats) analysis as the tool for the identification and prioritization of the gaps of the current e-TEFL(Electronic Teaching English as a Foreig...