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Your search keyword '"Peng, Qiu-Ming"' showing total 16 results
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16 results on '"Peng, Qiu-Ming"'

1. Natural Mediterranean Spotted Fever Foci, Qingdao, China

Author

Gu, Xiao-Lan, Wang, Rui, Zhou, Chuan-Min, Cui, Jiang-Tao, Li, Ze-Min, Jiang, Ze-Zheng, Li, Bang, Peng, Qiu-Ming, Zhang, Wen-Kang, Han, Hui-Ju, and Yu, Xue-Jie

Subjects
Qingdao, China -- Health aspects, Tick-borne diseases -- Risk factors -- Causes of, Zoonoses -- Risk factors -- Causes of, Disease transmission -- Risk factors, Health
Abstract

Mediterranean spotted fever (MSF) is an acute febrile, zoonotic disease caused by the bacterium Rickettsia conorii that is transmitted to humans by the brown dog tick, Rhipicephalus sanguineus (1). MSF [...]

Published
2022
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5. SFTSV infection in rodents and their ectoparasitic chiggers

Author

Gu, Xiao-Lan, primary, Su, Wen-Qing, additional, Zhou, Chuan-Min, additional, Fang, Li-Zhu, additional, Zhu, Ke, additional, Ma, Dong-Qiang, additional, Jiang, Fa-Chun, additional, Li, Ze-Min, additional, Li, Dan, additional, Duan, Shu-Hui, additional, Peng, Qiu-Ming, additional, Wang, Rui, additional, Jiang, Yuan, additional, Han, Hui-Ju, additional, and Yu, Xue-Jie, additional

Published
2022
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6. Natural Mediterranean Spotted Fever Foci, Qingdao, China.

Author

Xiao-Lan Gu, Rui Wang, Chuan-Min Zhou, Jiang-Tao Cui, Ze-Min Li, Ze-Zheng Jiang, Bang Li, Qiu-Ming Peng, Wen-Kang Zhang, Hui-Ju Han, Xue-Jie Yu, Gu, Xiao-Lan, Wang, Rui, Zhou, Chuan-Min, Cui, Jiang-Tao, Li, Ze-Min, Jiang, Ze-Zheng, Li, Bang, Peng, Qiu-Ming, and Zhang, Wen-Kang

Abstract

We sequenced DNA from spleens of rodents captured in rural areas of Qingdao, East China, during 2013-2015. We found 1 Apodemus agrarius mouse infected with Rickettsia conorii, indicating a natural Mediterranean spotted fever foci exists in East China and that the range of R. conorii could be expanding. [ABSTRACT FROM AUTHOR]

Published
2022
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8. Bats and their ectoparasites (Nycteribiidae and Spinturnicidae) carry diverse novel Bartonella genotypes, China.

Author

Han, Hui‐Ju, Li, Ze‐Min, Li, Xia, Liu, Jian‐Xiao, Peng, Qiu‐Ming, Wang, Rui, Gu, Xiao‐Lan, Jiang, Yuan, Zhou, Chuan‐Min, Li, Dan, Xiao, Xiao, and Yu, Xue‐Jie

Subjects
BATS, BARTONELLA, ECTOPARASITES, POLYMERASE chain reaction, GENOTYPES
Abstract

Bartonella species are facultative intracellular bacteria and recognized worldwide as emerging zoonotic pathogens. Bartonella were isolated or identified by polymerase chain reaction (PCR) in bats and their ectoparasites worldwide, whereas the association between them was scarce, especially in Asia. In this study, a retrospective analysis with frozen samples was carried out to identify the genetic diversity of Bartonella in bats and their ectoparasites and to investigate the relationships of Bartonella carried by bats and their ectoparasites. Bats and their ectoparasites (bat flies and bat mites) were collected from caves in Hubei Province, Central China, from May 2018 to July 2020. Bartonella were screened by PCR amplification and sequencing of three genes (gltA, rpoB, and ftsZ). Bats, bat flies, and bat mites carried diverse novel Bartonella genotypes with a high prevalence. The sharing of some Bartonella genotypes between bats and bat flies or bat mites indicated a potential role of bat flies and bat mites as vectors of bartonellae, while the higher genetic diversity of Bartonella in bat flies than that in bats might be due to the vertical transmission of this bacterium in bat flies. Therefore, bat flies might also act as reservoirs of Bartonella. In addition, human‐pathogenic B. mayotimonesis was identified in both bats and their ectoparasites, which expanded our knowledge on the geographic distribution of this bacterium and suggested a potential bat origin with bat flies and bat mites playing important roles in the maintenance and transmission of Bartonella. [ABSTRACT FROM AUTHOR]

Published
2022
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16. Grain Refining Behavior of Zr, Al2Y and Al4C3 Particles in Magnesium Alloys by the First-Principles Calculations

Author

Pan, Jun Ling, Peng, Qiu Ming, Guo, Jian Xin, and Li, Hui

Abstract

Grain refining is one of the most important issues in the applications of Mg alloys, which directly determines mechanical properties and deformability. Therefore the understanding of grain refining mechanism during solidification will be benefit to develop new grain refiners. Herein refining role was elucidated by the first principles calculations based on adsorption behavior of a Mg atom on the closest-packed planes of grain refiners (Zr (001), Al2Y(311) and Al4C3(102)). Taking into account different sites, the site with the maximum adsorption energy value generally corresponded to the most possible location. The adsorption energy results show that the possible refining turn follows Al4C3(102)>Zr (001)>Al2Y(311). Meanwhile, the structural optimization confirmed that the Mg atom connected with two C atoms on the top of zig-zag plane of Al4C3(102), three Zr atoms at the hcp position on Zr (001), and two Y atoms and one Al atom at the bottom of zig-zag plane of Al2Y(311). The density of states revealed that the variation of d-orbital electrons of Mg atom became apparent during adsorption process. The values of Mulliken charges were 0.898 e in Al4C3(102), 0.410 e in Zr (001) and 0.245 e in Al2Y(311), respectively. This tendency agrees well with the previous experimental results. It indicates the adsorption energy on the closest-packed planes can be regarded as a prerequisite to select new grain refiners for Mg alloys in future.

Published
2015
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