Analysis of the hypovirulent with the gene on IncN plasmids.

It is crucial to strengthen the ongoing clinical surveillance of non-highly virulent, multi-resistant .

Functional Portrait and Genomic Feature of Carbapenem-Resistant Harboring and in China.

The purpose of this research was to analyze the functional portraits and genomic features of carbapenem-resistant carrying and . The resistance mechanism of the strain was verified by experiments. Genomic data were aligned and analyzed in the NCBI database.

Adaptive Neural Network Output-Constraint Control for a Variable-Length Rotary Arm With Input Backlash Nonlinearity.

This article studies the problem of deformation reduction and attitude tracking for a rotated and extended flexible crane arm with input backlash-saturation and output asymmetrical constraint. By employing Halmilton's principle, the arm system model is formulated by a set of partial and ordinary differential equations (ODEs). Given the modeling inaccuracy, a radial neural network (RNN) is used to approximate system parameters.

Adaptive Deformation Control of a Flexible Variable-Length Rotary Crane Arm With Asymmetric Input-Output Constraints.

This article constructs two adaptive control laws to achieve deformation reduction and attitude tracking for a rotary variable-length crane arm with system parameter uncertainties and asymmetric input-output constraints. Two auxiliary systems are given to deal with the input constraints, an asymmetric-logarithm-barrier Lyapunov function is established for achieving the asymmetric output constrains, and five adaptive laws are constructed to handle system parameter uncertainties. Besides, the control design is based on a partial differential equation model, and the S-curve acceleration and deceleration method is used for regulating the arm extension speed.

Asymmetric Input-Output Constraint Control of a Flexible Variable-Length Rotary Crane Arm.

This article demonstrates the realization of angle tracking and deformation suppression by developing two boundary controllers for a flexible variable-length rotary crane arm with extraneous disturbances and asymmetric input-output constraints. The dynamic model description of this kind of crane arm system is several partial differential equations integrated into few ordinary differential equations. The S-curve acceleration and deceleration scheme is utilized to adjust the elongation rate of the arm.

Prevalence of Carbapenem-Resistant Co-Harboring blaKPC-Carrying Plasmid and pLVPK-Like Virulence Plasmid in Bloodstream Infections.

This study aimed to characterize carbapenem-resistant (CR-KP) co-harboring -carrying plasmid and pLVPK-like virulence plasmid. Between December 2017 and April 2018, 24 CR-KP isolates were recovered from 24 patients with bacteremia. The mortality was 66.

Emergence of Hypervirulent Ceftazidime/Avibactam-Resistant Isolates in a Chinese Tertiary Hospital.

Introduction: Carbapenem-resistant hypervirulent (CR-hvKP) is increasingly reported worldwide, but ceftazidime/avibactam (CAZ/AVI)-resistant hvKP isolates have rarely been observed. We attempted to characterize them in clinical CRKP isolates collected from a university hospital in China from March 2016 to March 2018.

Methods: All isolates were analyzed by antimicrobial susceptibility testing, molecular detection of antibiotic resistance determinants, multilocus sequence typing (MLST), SDS-PAGE, and pulsed-field gel electrophoresis (PFGE).

Microbiological and Clinical Characteristics of Isolates of K57 Capsular Serotype in China.

K57 (K57-KP) is associated with hypervirulence, but the basis and systematic data of K57-KP are limited. A retrospective study was conducted in 156 patients between January 2013 and January 2016. The clinical and molecular data, including antimicrobial susceptibility testing, multilocus sequence typing, antimicrobial resistance genes, and virulence determinants were assessed.

Molecular Epidemiology and Virulence Features of Staphylococcus aureus Bloodstream Isolates in a Regional Burn Center in China, 2012-2016.

Staphylococcus aureus is known to be a predominant pathogen causing bloodstream infection (BSI) from burn units. Our study aimed to perform the clinical epidemiological analysis and virulence features of S. aureus strains isolated from the burn patients with BSI from a burn center in southeastern China during 2012-2016.

Virulence and Genomic Feature of a Virulent Sequence Type 14 Strain of Serotype K2 Harboring in China.

The objective of this study was to reveal the molecular mechanism involved in carbapenem resistance and virulence of a K2 clinical isolate 24835. The virulence of the strain was determined by and methods. The whole-genome sequencing technology and molecular biology methods were used to analyze the genomic features associated with the carbapenem resistance and virulence of 24835.