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Qin Ni,1,2,* Xingwei Yao,3,* Jinhui Li,2,* Jinghan Ma,3,* Kaiying Wang,2 Xiong Liu,2 Peihan Li,2 Lang Yang,2 Peng Li,2 Shenlong Li1,2 1Epidemiology, Zhengzhou University, Zhengzhou, People’s Republic of China; 2Biosafety, Chinese PLA Center for Disease Control and Prevention, Beijing, People’s Republic of China; 3Medical Clinical Laboratory, Dong Zhimen Hospital Beijing University of Chinese Medicine, Beijing, People’s Republic of China*These authors contributed equally to this workCorrespondence: Peng Li; Shenlong Li, Email jiekenlee@126.com; lishenlong@sohu.comObjective: Klebsiella pneumoniae is a common multidrug-resistant pathogen that jeopardizes the health of hospitalized patients. We aimed to study the phenotypic and genotypic characteristics of carbapenem-resistant K. pneumoniae (CRKP) isolates from a hospital in Beijing.Methods: Twenty-four CRKP clinical isolates were collected within a half-year to investigate antimicrobial resistance and genomic characteristics. Illumina and Nanopore sequencing were performed to assemble and annotate genomes.Results: All strains were multi-drug resistant. Twenty-two strains carried the blaKPC-2 gene and two harbored blaNDM-5. Multilocus sequence type(MLST) analysis identified five sequence types; most isolates belonged to ST11. Three strains were isolated from the same patient; each carried a different plasmid replicon, either IncFII (pHN7A8), IncX, or IncFIB (K).Conclusion: This study furthers the understanding of CRKP antimicrobial resistance genotypes, and may facilitate the control of nosocomial infections caused by antimicrobial-resistant pathogens.Keywords: Klebsiella pneumoniae, drug resistance, carbapenemase, ST11, blaKPC-2

Two Cu(II) coordination polymers, {[Cu(ttpe)0.5(1,3-bdc)]��2H2O��DMAC}n (1) and {[Cu(ttpe)0.5(1,3-bda)]��3H2O}n (2) (ttpe = 1,1,2,2-tetrakis(1,2,4-triazol-1-yl)phenyl)ethylene, 1,3-bdc = 1,3-benezenedicarboxylate, 1,3-bda = 1,3-benzenediacetate), were hydrothermally prepared and characterized. 1 exhibited (4,4)-coordinated 2-D topology with point symbol (3 2 ��6 2 ��7 2 )(3 2 ��6 2 ��7 2 )2. 2 showed (3,4)-coordinated 2-D topology with point symbol (4��6��8)2(4 2 ��6 2 ��8 2 ). Eg data of 1 and 2 were 2.31 and 2.17 eV. 1 and 2 exhibited good catalytic activity for degradation of MB under visible light and ultrasound. The degradation mechanisms using 1 and 2 were explored.

This paper examines how a firm’s employment policy, particularly employee cash profit-sharing plans, affects its financial reporting. We find that firms with employee cash profit-sharing programs a...

Pb0.5Sr0.5TiO3 (PST50) thin films with different Cr doping amounts were prepared on LaNiO3 coated silicon substrates by a chemical solution deposition method. Their dielectric and ferroelectric properties were studied at room temperature. The dielectric constant decreased from 417 to 207 (at 1 kHz), as the Cr content increased from 0 to 8%. When the content of Cr was 3%, the tunability and the figure of merit factor reached maximal values of 61.3% and 21.4, respectively. The remnant polarization of the Cr-doped PST thin films decreased from 7.4 μC/cm2 to 2.0 μC/cm2, as the Cr content increased from 0 to 5%.