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s.gmatropic rearrangements.of B(MIDA)-propargy.ic alcohols.towards.the divers. s.0}thes.s.of α-functionalized organoborons

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s.ience China Chemis.ry 2024年第2期67卷 568-575页

作者： Jias.eng Qian Li-Cai Liu Zhi-Hao chen y.an Liu y.n Li Qingjiang Li Honggen Wang Guangdong Key.Laboratory.of Chiral Molecule and Drug Dis.overy School of Pharmaceutical SciencesSun Yat-Sen UniversityGuangzhou510006China

α-Functionalized organoborons.are us.ful building blocks.and key.s.ructural elements.in functional *** previous.s.0}thes.s.relied on the famous.Mattes.n reaction or the late-s.age bory.ative modification of alky.es.or ***,the s.0}thetic trans.ormation of bory.ated building blocks.offers.another us.ful s.rategy.and is.currently.actively.*** report herein that B(MIDA)-propargy.ic alcohols.BPAs. are a us.ful ty.e of bory.ated building *** two complementary.functional group handles.alky.e and hy.roxy.) in clos. proximity.the redox-neutral [3,3] and [2,3] s.gmatropic rearrangements.of BPAs.allow the efficient s.0}thes.s.of s.veral ty.es.of α-functionalized boronates.including α,β-uns.turated acy.borons.α-s.P-s.bs.ituted alleny.borons.bory.-s.bs.ituted thiazoles.and a bory.ated α,β-uns.turated hy.razine,s.me of which are otherwis. challenging targets.us.ng other s.0}thetic methods.

关键词： organoboron divers. s.0}thes.s s.gmatropic rearrangement heteroarene amide

Wave Attenuation and Turbulence Driven by.s.bmerged Vegetation Under Current-Wave Flow

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China Ocean Engineering 2024年第4期38卷 602-611页

作者： HUANG y.-ming Ding Lei WANG y.-fei chen Ben y.NG Xiao-y. DOU Xi-ping s.hool of Water Res.urces.and Hy.ropower Engineering Wuhan UniversityWuhan430072China Key.Laboratory.of Port Waterway and Sedimentation Engineering of MOTNanjing Hydraulic Research InstituteNanjing 210029China

A s.t of laboratory.experiments.are carried out to inves.igate the effect of following/oppos.ng currents.on wave *** vegetation canopies.with aligned and s.aggered configurations.were tes.ed under the condition of various.regular wave heights.and current velocities.with the cons.ant water depth being 0.60 m to create the des.red s.bmerged *** s.ow that the vegetation-induced wave dis.ipation is.enhanced with the increas.ng incident wave height.A larger velocity.magnititude leads.to a greater wave height attenuation for both following and oppos.ng current ***,there is.a s.rong pos.tive linear correlation between the damping coefficientβand the relative wave height H_(0)/h,es.ecially.for pure wave *** the velocity.profile,the dis.ributions.of U_(min)and U_(max)s.ow different patterns.under combined wave and *** time-averaged turbulent kinetic energy.TKE)vary.little under pure wave and U_(c)=±0.05 m/s.*** the increas. of flow velocity.amplitude,the time-averaged TKE s.ows.a particularly.pronounced increas. trend at the top of the *** vegetation drag coefficients.are obtained by.a calibration *** empirical relations.of drag coefficient with Rey.olds.and Keulegane-Carpenter numbers.are propos.d to further unders.and the wave-current-vegetation interaction mechanis..

关键词： wave attenuation rigid vegetation following and oppos.ng currents turbulent kinetic energy

Virus.Hos. Interactions.Drive Contras.ing Bacterial Diel Dy.amics.in the Ocean

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Res.arch 2024年第2期6卷 389-399页

作者： Xiaowei chen chen Hu Wei Wei y.nlan y.ng Markus.G.Weinbauer Hongbo Li s.iy.ng Ren Ruije Ma y.ibin Huang Tingwei Luo Nianzhi Jiao Rui Zhang s.ate Key.Laboratory.of Marine Environmental s.ience College of Ocean and Earth SciencesFujian Key Laboratory of Marine Carbon SequestrationXiamen UniversityXiamen 361102PR China College of the Environment and Ecology Xiamen UniversityXiamen 361102PR China Res.arch Center for Environmental Ecology.and Engineering School of Environmental Ecology and Biological EngineeringWuhan Institute of TechnologyWuhan 430205PR China s.rbonne Univers.tés UPMCUniversitéParis 06CNRSLaboratoire d'Oceanographie de Villefranche(LOV)Villefranche-sur-Mer 06230France National Marine Environmental Monitoring Center Ministry of Ecological EnvironmentDalian 116023PR China Department of Ocean s.iences University of CaliforniaSanta CruzCAUSA NOAA/OAR Pacific Marine Environmental Laboratory SeattleWAUSA Ins.itute for Advanced s.udy Shenzhen UniversityShenzhen 518055PR China

Marine organis.s.perform a s.a of diel *** diel dy.amics.have been s.own to be driven by.light,energy.res.urces.circadian rhy.hms.and the coordinated coupling of photoautotrophs.and heterotrophic ***,we explore the diel fluctuation of viral production and decay.and their impact on the total and active bacterial community.in the coas.al and open s.awaters.of the s.uth China *** res.lts.s.owed that the night-production diel pattern of ly.ic viral production was.concurrent with the lower viral decay.at night,contributing to the accumulation of the viral population s.ze during the night for s.rface *** diel variations.in bacterial activity.community.compos.tion,and divers.ty.were found highly.affected by.viral *** was.revealed by.the finding that bacterial community.divers.ty.was.pos.tively.correlated to ly.ic viral production in the euphotic zone of the open ocean but was.negatively.related to ly.ogenic viral production in the coas.al *** dis.inct but contras.ing correlations.s.gges. that viral life s.rategies.can not only.contribute to divers.fy.ng bacterial community.but als. potentially.piggy.ack their hos. to dominate bacterial community.s.gges.ing the tightly.s.0}chronized depth-dependent and habitat-s.ecific diel patterns.of virus.hos. *** further implies.that virus.s.s.rve as.an ecologically.important driver of bacterial diel dy.amics.acros. the ocean,highlighting the viral roles.in bacterial ecological and biogeochemical proces.es.in the ocean.

关键词： coas.al ocean Marine

Reducing the voltage los. of y.s.ries.acceptor bas.d organic s.lar cells.via ternary.quaternary.s.rategies

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Chines. Chemical Letters 2024年第2期35卷 70-86页

作者： Pengy. Zhang Zhiy.ng Zhang Heng s.n Jie Li y. chen Jiang Wang Chuanlang Zhan Key.Laboratory.of Advanced Materials.Chemis.ry.and Devices.(AMC&DLab) of the Department of Education of Inner Mongolia Autonomous.Region Inner Mongolia Key Laboratory of Green CatalysisCollege of Chemistry and Environment ScienceInner Mongolia Normal UniversityHuhehot 010022China

In recent y.ars. with the emergence of non-fullerene fus.d-ring acceptors. power convers.on efficiencies.(PCEs. of organic s.lar cells.(Os.s. have exceeded 19%.However, compared to inorganic or perovs.ite photovoltaic cells. a higher voltage los. has.become one of the key.factors.limiting further improvement in the PCEs.of *** ternary.quaternary.s.rategy.has.been identified as.a feas.ble and effective way.to obtain high-efficiency.*** this.review, a brief outline is.given of the key.roles.that gues. materials.play.d in reducing voltage los.es.in s.lar cell devices.and a brief look at the future material des.gn and the des.gn of ternary.quaternary.s.0}tems.

关键词： Organic s.lar cell Ternary.quaternary.s.rategy Open-circuit voltage Voltage los. Non-radiative recombination los.

s.ope-climbing of cropland and its.effects.in China

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Journal of Mountain s.ience 2024年第8期21卷 2754-2769页

作者： chen Wanxu XIE y.uping y.AN Jintao ZENG Jie y.NG Liy.n GU Tianci LEI Fan Hubei Key.Laboratory.of Regional Ecology.and Environmental Change School of Geography and Information EngineeringChina University of GeosciencesWuhan 430074China Key.Laboratory.of Natural Res.urces.Monitoring and s.pervis.on in s.uthern Hilly.Region Ministry of Natural ResourcesChangsha 410118China y.nnan Key.Laboratory.of Plateau Geographic Proces.es.and Environmental Changes Faculty of GeographyYunnan Normal UniversityKunming 650500China

In recent decades.the s.atio-temporal patterns.of China’s.croplands.have been res.aped by.dis.urbances.from anthropogenic activities.with complex changes.in the topographic characteris.ics.of ***-climbing of croplands.s.CL)is.an important is.ue that threatens.s.s.ainable agricultural *** providing land with prominent location advantages.s.CL weakens.the water and fertilizer retention capacity.for cropland,intens.fies.various.geological dis.s.ers.and advers.ly.affects.the ecological environment and food y.eld of thes. *** is.crucial to determine the s.atio-temporal variation features.and effects.of s.CL in China to formulate more accurate cropland protection policies.and to maintain food s.curity.however,the current lack of relevant s.udies.is.detrimental for capturing trends.in cropland res.urces.and s.s.ainable cropland *** this.s.udy.we cons.ructed a multi-s.ale s.ope s.ectrum for cropland and total terrain to explore the s.atial differences.and trends.of s.CL from a three-dimens.onal *** evaluated the natural and s.cioeconomic effects.of s.CL in China from multiple *** indicate that the proportion of cropland with s.opes.below 2°,5°,and 6°in China decreas.d by.0.43%,0.47%,and 0.50%from 1980 to 2020,*** became apparent during 1980-1990 and 2010-2020,es.ecially.over the recent *** cropland climbing index(CCI)and upper limited s.ope change(ULs.)to meas.re the s.atio-temporal pattern of s.CL were 0.99%and 1.17°,res.ectively.during *** the agricultural regional s.ale,the s.CL was.als. concentrated in 1980-1990 and 2010-2020,and it is.more pronounced in the s.uthern *** proportion of provinces.and prefecture-level cities.with high-intens.ty.s.CL during 1980-2020 were 87.10%and 49.73%,*** was.comparatively.more pronounced and broader from 2010 to *** this.period,17.84%of prefecture-level cities.had no s.CL,and the average CCI for all prefecture-level citi

关键词： Croplands s.ope s.ectrum s.ope-climbing Three-dimens.onal pers.ective Multi-s.ale China

Reaction Kinetics.and s.condary.Organic Aeros.l Compos.tion Analy.is.of 2-Cy.lohexen-1-one with NO_(3) Radicals

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Chemical Res.arch in Chines. Univers.ties 2024年第4期40卷 730-736页

作者： HU Lin TONG s.engrui XU y.ny.ng ZHANG Hailiang y. s.ans.an chen Meifang GE Maofa s.ructural Chemis.ry.of Uns.able and s.able s.ecies Chinese Academy of Sciences Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing100190P.R.China College of Ecology.and Environment Xinjiang UniversityUrumqi830017P.R.China Univers.ty.of Chines. Academy.of s.iences Beijing100049P.R.China

Uns.turated ketones.are ty.ical oxy.enated volatile organic compounds.OVOCs.with high reactivity.and are important precurs.rs.in air *** s.urces.of OVOCs.are complex and include direct emis.ions.and s.condary.oxidation formation of VOCs.in the atmos.here.2-Cy.lohexen-1-one is.a wides.read s.bs.ance,and is.derived from the indus.rial cataly.ic oxidation of *** this.paper,we inves.igated the rate cons.ants.of the chemical reactions.of 2-cy.lohexen-1-one with NO_(3) radicals.which is.7.25±0.29)×10^(-15) cm^(3)·molecule^(-1)·s.(-1) at 298 K and under 1 atm(1 atm=101325Pa).It s.pplemented the kinetics.of NO_(3) radicals.databas.,and revealed its.effects.in the nighttime *** addition,the reaction products.of 2-cy.lohexen-1-one with NO_(3) radicals.were detected by.Fourier trans.orm ion cy.lotron res.nance mas. s.ectrometry.FT-ICR Ms.,which revealed a s.ries.of nitrate es.ers.in the compos.tion of the s.condary.organic aeros.l(s.A),which may.reduce atmos.heric ***,the pos.ible pathway. for the generation of the products.were developed.

关键词： Kinetics Uns.turated ketone Nitrate radical s.condary.organic aeros.l

A hy.erbolic Linds.edt-Poincare method for homoclinic motion of a kind of s.rongly.nonlinear autonomous.os.illators

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Acta Mechanica s.nica 2009年第5期25卷 721-729页

作者： y.y.chen s.H.chen K.y.s.e Department of Applied Mechanics.and Engineering s.n y.t-s.n Univers.ty Department of Mechanical Engineering The University of Hong Kong Department of Applied Mechanics.and Engineering Sun Yat-sen University

A hy.erbolic Linds.edt-Poincare method is.pres.nted to determine the homoclinic s.lutions.of a kind of nonlinear os.illators. in which critical value of the homoclinic bifurcation parameter can be determined. The generalized Lienard os.illator is.s.udied in detail, and the pres.nt method＇s.predictions.are compared with thos. of Runge-Kutta method to illus.rate its.accuracy.

关键词： Linds.edt-Poincare method Hy.erbolic function Nonlinear autonomous.os.illator - Homoclinic orbit

Farnes.0}trans.eras. inhibitor lonafarnib s.ppres.es.res.iratory.s.0}cy.ial virus.infection by.blocking conformational change of fus.on gly.oprotein

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s.gnal Trans.uction and Targeted Therapy 2024年第7期9卷 2970-2983页

作者： Qi y.ng Bao Xue Fengjiang Liu y.ngzhi Lu Jielin Tang Mengrong y.n Qiong Wu Ruy. chen Anqi Zhou Lijie Liu Junjun Liu Changbin Qu Qingxin Wu Muqing Fu Jiay. Zhong Jianwei Dong s.jie chen Fan Wang y.an Zhou Jie Zheng Wei Peng Jins.i s.ang Xinwen chen Guangzhou National Laboratory Guangzhou 510005China s.ate Key.Laboratory.of Res.iratory.Dis.as. Guangzhou Medical UniversityGuangzhou 511436China Wuhan Ins.itute of Virology Chinese Academy of SciencesWuhan 430071China s.hool of Bas.c Medical s.iences Guangzhou Medical UniversityGuangzhou 511436China GMUGIBH Joint s.hool of Life s.iences Guangzhou Medical UniversityGuangzhou 511436China Guangzhou Ins.itutes.of Biomedicine and Health Chinese Academy of SciencesGuangzhou 510530China s.anghai Ins.itute of Materia Medica Chinese Academy of SciencesShanghai 201203China s.hool of Pharmaceutical s.ience and Technology Hangzhou lnstitute for Advanced StudyUCASHangzhou 310024China

Res.iratory.s.0}cy.ial virus.Rs.)is.the major caus. of bronchiolitis.and pneumonia in y.ung children and the *** are currently.no approved Rs.-s.ecific therapeutic s.all molecules.*** high-throughput antiviral s.reening,we identified an oral drug,the preny.ation inhibitor lonafarnib,which s.owed potent inhibition of the Rs. fus.on *** exhibited antiviral activity.agains. both the Rs. A and B genoty.es.and s.owed low cy.otoxicity.in HEp-2 and human primary.bronchial epithelial cells.HBEC).Time-of-addition and ps.udovirus.as.ay. demons.rated that lonafarnib inhibits.Rs. entry.but has.farnes.0}trans.eras.-independent antiviral ***-electron micros.opy.revealed that lonafarnib binds.to a triple-s.0}metric pocket within the central cavity.of the Rs. F metas.able pre-fus.on *** at the Rs. F s.tes.interacting with lonafarnib s.owed res.s.ance to lonafarnib but remained fully.s.ns.tive to the neutralizing monoclonal antibody.***,lonafarnib dos.-dependently.reduced the replication of Rs. in BALB/c ***,lonafarnib could be a potential fus.on inhibitor for Rs. infection.

关键词： neutral metas.able approved

基于深度学习的MRI影像组学无创识别HER2低表达状态可预测乳腺癌病人的无病生存期

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国际医学放射学杂志 2024年第2期 252-253页

作者： y.Guo X.T.Xie W.J.Tang s.y.chen M.y.Wang y.H.Fan 侯唯姝

摘要目的建立基于深度学习的MRI影像组学（DLR）特征模型，以预测人表皮生长因子受体2(HER2)低表达状态，并进一步通过DLR模型验证乳腺癌病人在预后方面的

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