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Quenching and flow of charm and bottom quarks via semi-leptonic decay of D and B mesons in Pb+Pb collisions at the LHC

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Chinese Physics C 2024年第8期48卷 190-197页

作者： shu-Qing li Wen-Jing Xing Shanshan Cao Guang-you Qin School of Physics and Electronic Engineering Jining UniversityQufu 273155China Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China Institute of Particle Physics and Key Laboratory of Quark and Lepton Physics(MOE) Central China Normal UniversityWuhan 430079China

Heavy flavor particles provide important probes of the microscopic structure and thermodynamic properties of the quark-gluon plasma(QGP)produced in high-energy nucleus-nucleus *** studied the energy loss and flow of charm and bottom quarks inside the QGP via the nuclear modification factor(R_(AA))and elliptic flow coefficient(v_(2))of their decayed leptons in heavy-ion collisions at the *** dynamical evolution of the QGP was performed using the CLVisc(3+1)-dimensional viscous hydrodynamics model;the evolution of heavy quarks inside the QGP was simulated with our improved Langevin model that considers both collisional and radiative energy loss of heavy quarks;the hadronization of heavy quarks was simulated via our hybrid coalescence-fragmentation model;and the semi-leptonic decay of D and B mesons was simulated via *** the same spatial diffusion coefficient for charm and bottom quarks,we obtained smaller R_(AA) and larger v_(2) of charm decayed leptons than bottom decayed leptons,indicating stronger energy loss of charm quarks than bottom quarks inside the QGP within our current model setup.

关键词： quark-gluon plasma heavy-ion collisions jet quenching anisotropic flow heavy quark heavy flavor muon

Fe(OTf)_(3) Catalyzed Annulation of 2,3-Disubstituted Indoles with Aziridines

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Chinese Journal of Chemistry 2014年第8期32卷 709-714页

作者： Hua liu Chao Zheng shu-li you State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China

A Fe(OTf)_(3) catalyzed[3+2]annulation reaction between 2,3-disubstituted indoles and N-Ts aziridines is described herein.A series of hexahydropyrrolo[3,4-b]indole derivatives bearing two consecutive quaternary carbon... 详细信息

关键词： annulation indole aziridine Lewis acid catalysis

Visible-light-mediated photocatalysis as a new tool for catalytic asymmetric dearomatization(CADA)reactions

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Science Bulletin 2018年第13期63卷 809-811页

作者： Yuan-Zheng Cheng Xiao Zhang shu-li you State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China Collaborative Innovation Center of Chemical Science and Engineering.Tianjin 300072 China

Aromatic compounds often serve as widely available and fundamental synthetic materials in polymers,paints,cosmetics,and *** development of novel transformations based on simple aromatics to access highly value-added structures is in great *** this regard,catalytic asymmetric dearomatization(CADA)reactions can convert planar aromatic compounds

关键词：反应能光催化不对称工具合成材料激活过程混合物聚合物

Copper-Catalyzed Oxidative Dearomatization of 2-Naphthols via Etherification

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Chinese Journal of Chemistry 2019年第9期37卷 903-908页

作者： Ji-Cheng Yi Zhi-Jie Wu shu-li you State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryChinese Academy of Sciences345 Lingling LuShanghai 200032China School of Physical Science and Technology ShanghaiTech University100 Haike RoadShanghai 201210China

Copper-catalyzed intermolecular oxidative-etherification type dearomatization reaction of 2-naphthols was *** air as the terminal oxidant,the reaction proceeded in excellent yields under mild *** addition,the reaction between two different naphthol substrates occurred smoothly.A series of multifunctionalized β-naphthalenones,important scaffold existed widely in natural products and biologically active molecules,were synthesized efficiently.

关键词： Copper-Catalyzed Oxidative Dearomatization 2-Naphthols via Etherification multifunctionalized β-naphthalenones

Pd-Catalyzed Dearomatization of Indole Derivatives via Intermolecular Heck Reactions

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Chinese Journal of Chemistry 2020年第3期38卷 235-241页

作者： Ping Yang Ren-Qi Xu Chao Zheng shu-li you State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences345 Ling ling LuShanghai 200032China

Pd-catalyzed intermolecular dearomative Heck reaction of indoles with aryl iodides is *** challenges on both reactivity and regioselectivity are addressed by the judicious regulation of the geometric and electronic properties of the *** array of indoline derivatives bearing C2-quaternary center is obtained in good to excellent yields(up to 93%)with exclusive regioselectivity under operationally simple *** mechanistic proposal is supported by detailed DFT calculations.

关键词： conditions. Heck conclusion

Distribution of pathogenic bacteria and antimicrobial sensitivity of eye infections in Suzhou

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International Journal of Ophthalmology(English edition) 2024年第4期17卷 700-706页

作者： li Zhang Hai-Zhang you Guo-Hui Wang Wei Xu Jian-Shan li Qing-liang Zhao shu Du Department of Hospital-Acquired Infection Control Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina Department of Administrative Office Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina Department of Clinical Laboratory Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina Department of Pharmacy Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina Department of Corneal and Lacrimal Passage Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina Department of Fundus Diseases and Ocular Trauma Lixiang Eye Hospital of Soochow UniversitySuzhou 215021Jiangsu ProvinceChina

AIM:To investigate the types of bacteria in patients with eye infections in Suzhou and their drug resistance to commonly used antibacterial ***:The clinical data of 155 patients were retrospectively collected in this study,and the pathogenic bacteria species and drug resistance of each pathogenic bacteria were ***:Among the 155 patients(age from 12 to 87 years old,with an average age of 57,99 males and 56 females)with eye infections(160 eyes:74 in the left eye,76 in the right eye and 5 in both eyes,all of which were exogenous),71(45.81%)strains were gram-positive bacteria,23(14.84%)strains were gram-negative bacteria and 61(39.35%)strains were ***-positive bacteria were highly resistant to penicillin and erythromycin(78.87%and 46.48%respectively),but least resistant to vancomycin at ***-negative bacteria were highly resistant to cefoxitin and compound sulfamethoxazole(100%and 95.65%respectively),but least resistant to meropenem at *** of the resistance of gram-positive and gram-negative bacteria to some drugs revealed statistically significant differences(Plications caused by eye infections.

关键词： eye infection pathogenic bacteria drug resistance antimicrobial sensitivity test

Pd-Catalyzed Asymmetric Intramolecular Arylative Dearomatization of para-Aminophenols

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Chinese Journal of Chemistry 2020年第7期38卷 683-689页

作者： Ren-Qi Xu Ping Yang Chao Zheng shu-li you State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular SynthesisShanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of Sciences345 Lingling LuShanghai 200032China

Background and Originality *** recent years,Pd-catalyzed arylative dearomatization reactions have attracted wide interests of organic chemists for the efficient construction of privileged molecular scaffolds that appear in important natural products.[l]A large array of aromatic compounds,such as anilines,121 phenols,[3]indoles,[4]pyrroles,[3]pyridines[6]and furans171 have been successfully applied in the arylative dearomatization strategy via Pd-catalyzed cross coupling reactions.

关键词： products. phenols catalyzed

Nonreciprocal generation of Schrodinger cat state induced by topology

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Science China(Physics,Mechanics & Astronomy) 2024年第4期67卷 23-30页

作者： Zi-Hao li li-li Zheng Ying Wu Xin-you Lü School of Physics and Institute for Quantum Science and Engineering Huazhong University of Science and Technologyand Wuhan Institute of Quantum TechnologyWuhan 430074China Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education Jianghan UniversityWuhan 430074China

The Schrodinger cat state produced differently in two directions is anticipated to be a critical quantum resource in quantum information *** exploring the interplay between quantum nonreciprocity and topology in a one-dimensional microcavity array,we obtain the Schrodinger cat state(a pure quantum state)in a chosen direction at the edge cavity,whereas a classical state in the other *** nonreciprocal generation of the cat state originates from the topologically protected chiralitymode excitation in the nontrivial phase,but in the trivial phase,the nonreciprocal generation of cat state ***,our proposal is switchable by tuning the parameters so that a topological phase transition ***,the obtained cat state has nonreciprocal high fidelity,nonclassicality,and quantum coherence,which are sufficient to be used in various one-way quantum technologies,e.g.,invisible quantum sensing,noise-tolerant quantum computing,and chiral quantum *** work provides a general approach to control quantum nonreciprocities with the topological effect,which substantially broadens the fields of nonreciprocal photonics and topological physics.

关键词： Schr?dinger cat state nonreciprocity topology

Catalytic asymmetric brominative dearomatization reaction of benzofurans

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Chinese Chemical Letters 2018年第8期29卷 1212-1214页

作者： Xiao-Wei liang Xiaoling Chen Zhiguo Zhang shu-li you State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Key Laboratory of Biomass Chemical Engineering of Ministry of Education College of Chemical and Biological Engineering Zhejiang University

A catalytic asymmetric brominative dearomatization reaction of benzofuran derivatives was achieved by using hydroquinidine 1,4-phthalazinediyl diether [（DHQ）_2PHAL] as the catalyst and N-bromoacetamide（NBAc） as the brominating reagent. A series of brominated spiro[benzofuran-2,5＇-oxazoles] bearing two contiguous stereogenic centers were obtained in high yields（up to 99%） with excellent enantioselectivity（up to 97% ee）.

关键词： Asymmetric catalysis Bromination Benzofuran Dearomatization Organocatalysis