Loss-tolerant quantum multi-party key agreement without quantum storage.

Quantum key distribution (QKD) and quantum key agreement (QKA) are two main branches of key establishment in quantum cryptography. However, the research of QKA falls far behind that of QKD, especially in practicability. The main reason is that QKA needs to resist not only the outside eavesdropping but also the participant cheating.

Association of antibiotic resistance with SHV-12 extended-spectrum β-lactamase in .

The association between antibiotic resistance and SHV-12 extended-spectrum β-lactamase (ESBL) in remains unknown. The aim of the present study was to investigate the prevalence of both chromosome- and plasmid-borne SHV-12 ESBL genes in Transmission of the SHV-12 ESBL gene was explored, and the risk factors for antibiotic resistance in were analyzed. Polymerase chain reaction (PCR) results showed that 58 out of the 100 isolates carried the SHV-12 ESBL gene: 34.