User profiles for Xian Li

Xian-hua Li/李献华

- Verified email at gig.ac.cn - Cited by 99758

Xian-Zhi Li

- Verified email at hc-sc.gc.ca - Cited by 11154

Xian Li

- Verified email at fb.com - Cited by 6455

The challenge of efflux-mediated antibiotic resistance in Gram-negative bacteria

XZ Li, P Plésiat, H Nikaido - Clinical microbiology reviews, 2015 - Am Soc Microbiol
The global emergence of multidrug-resistant Gram-negative bacteria is a growing threat to
antibiotic therapy. The chromosomally encoded drug efflux mechanisms that are ubiquitous in …

Efflux-mediated drug resistance in bacteria: an update

XZ Li, H Nikaido - Drugs, 2009 - Springer
Drug efflux pumps play a key role in drug resistance and also serve other functions in bacteria.
There has been a growing list of multidrug and drug-specific efflux pumps characterized …

Efflux-mediated drug resistance in bacteria

XZ Li, H Nikaido - Drugs, 2004 - Springer
Drug resistance in bacteria, and especially resistance to multiple antibacterials, has
attracted much attention in recent years. In addition to the well known mechanisms, such as …

Formation of the 1300-km-wide intracontinental orogen and postorogenic magmatic province in Mesozoic South China: A flat-slab subduction model

ZX Li, XH Li - Geology, 2007 - pubs.geoscienceworld.org
We propose a flat-slab subduction model for Mesozoic South China based on both new
sensitive high-resolution ion microprobe (SHRIMP) U-Pb zircon data and a synthesis of existing …

Opt: Open pre-trained transformer language models

…, M Chen, S Chen, C Dewan, M Diab, X Li… - arXiv preprint arXiv …, 2022 - arxiv.org
Large language models, which are often trained for hundreds of thousands of compute days,
have shown remarkable capabilities for zero- and few-shot learning. Given their …

Amalgamation between the Yangtze and Cathaysia Blocks in South China: constraints from SHRIMP U–Pb zircon ages, geochemistry and Nd–Hf isotopes of the …

XH Li, WX Li, ZX Li, CH Lo, J Wang, MF Ye… - Precambrian …, 2009 - Elsevier
South China was formed through the amalgamation of the Yangtze Block with the Cathaysia
Block, but the timing of this amalgamation is controversial, ranging from Mesoproterozoic to …

U–Pb zircon, geochemical and Sr–Nd–Hf isotopic constraints on age and origin of Jurassic I-and A-type granites from central Guangdong, SE China: a major igneous …

XH Li, ZX Li, WX Li, Y Liu, C Yuan, G Wei, C Qi - Lithos, 2007 - Elsevier
The Mesozoic geology of SE China is characterized by widespread Jurassic to Cretaceous
igneous rocks consisting predominantly of granites and rhyolites and subordinate mafic …

Grenvillian continental collision in south China: New SHRIMP U-Pb zircon results and implications for the configuration of Rodinia

ZX Li, X Li, H Zhou, PD Kinny - Geology, 2002 - pubs.geoscienceworld.org
The timing of continental collision between the Yangtze and Cathaysia blocks of south
China is an issue that bears on the accretion of Asia, as well as on the assembly and …

AiiA, an enzyme that inactivates the acylhomoserine lactone quorum-sensing signal and attenuates the virulence of Erwinia carotovora

YH Dong, JL Xu, XZ Li… - Proceedings of the …, 2000 - National Acad Sciences
N-acylhomoserine lactones, known as autoinducers (AIs), are widely conserved signal
molecules present in quorum-sensing systems of many Gram-negative bacteria. AIs are involved …

Precise determination of Phanerozoic zircon Pb/Pb age by multicollector SIMS without external standardization

XH Li, Y Liu, QL Li, CH Guo… - Geochemistry …, 2009 - Wiley Online Library
Zircon has long been recognized as the best geochronometer and the most important
timekeeper in geosciences. Modern microbeam techniques such as SIMS and LA‐ICPMS have …