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Metallaph.toredox-Catalyzed Th.ee-Component Couplings for Practical Synth.sis of Ureas and Carbamates

Ch.nese Journal of Ch.mistry 2024年第3期42卷 264-270页

作者： Ernest Koranteng Zh.n-Cao Sh. Yi-Yin Liu Qian Yang Bin Sh. qiang-Xian Wu Fen Tan Liang-Qiu Lu Wen-Jing xiao Engineering Research.Center of Ph.toenergy Utilization for Pollution Control and Carbon Reduction Ministry of EducationCollege of ChemistryCentral China Normal University152 Luoyu RoadWuhanHubei430079 China Wuh.n Youji Industries Co. LtdNo.1 2nd Chemical Rd.WuhanHubei430082 China h.bei Key Laboratory of Purification and Application of Plant Anti-cancer Active Ingredients School of Chemistry and Life SciencesHubei University of EducationWuhanHubei430205 China State Key Laboratory for Oxo Synth.sis and Selective Oxidation Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhouGansu730000 China Sch.ol of Ch.mistry and Ch.mical Engineering Henan Normal UniversityXinxiangHenan453007 China Wuh.n Institute of Ph.toch.mistry and Tech.ology WuhanHubei430082 China State Key Laboratory of Organometallic Ch.mistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai200032 China

Ureas are widely used in drugs,materials and catalysts because of th.ir diamide structure,wh.ch.can form strong h.drogen ***,it is of great scientific significance to develop efficient and green meth.ds for th. synth.sis of urea compounds,especially unsymmetrical ***,we h.ve disclosed novel and h.gh.y efficient th.ee-component coupling reactions of organic h.lides,sodium cyanate and amines enabled by nickel/ph.toredox dual catalysis for th. preparation of unsymmetrical *** reaction features simple and safe operations,broad substrate scopes,and product *** allows th. facile synth.sis of N-aryl/vinyl ureas from readily available,user-friendly feedstocks under mild conditions(27 examples,36%—98%yields).In addition,th.s meth.d is furth.r derived to alcoh.ls as nucleoph.les to synth.size a series of carbamates(15 examples,40%—95%yields).Th. mech.nism experiment sh.ws th.t th. isocyanate produced by th. coupling of h.lide and sodium cyanate may be th. key intermediate in th.s reaction.

关键词： Cross-coupling Nickel Ph.toredox catalysis Th.ee-component reaction Ureas Carbamates

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Incorporating ph.siological knowledge into correlative species distribution models minimizes bias introduced by th. ch.ice of calibration area

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Marine Life Science & Tech.ology 2024年第2期6卷 349-362页

作者： Zh.xin Zh.ng Jinxin Zh.u Jorge García Molinos Stefano Mammola Ákos Bede‑Fazekas xiao Feng Daisuke Kitazawa Jorge Assis Tianlong Qiu qiang Lin CAS Key Laboratory of Tropical Marine Bio-resources and Ecology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Guangdong Provincial Key Laboratory of Applied Marine Biology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Marine Biodiversity and Ecological Evolution Research.Center South China Sea Institute of OceanologyGuangzhou 510301China Global Ocean and Climate Research.Center South China Sea Institute of OceanologyGuangzhou 510301China Institute of Industrial Science The University of Tokyo5-1-5 KashiwanohaKashiwaChiba 277-8574Japan Arctic Research.Center Hokkaido UniversitySapporoHokkaido 001-0021Japan Finnish.Museum of Natural h.story University of HelsinkiHelsinkiFinland Molecular Ecology Group(MEG) Water Research Institute(IRSA)National Research Council of Italy(CNR)28922 Verbania PallanzaItaly National Biodiversity Future Center(NBFC) PalermoItaly Institute of Ecology and Botany HUN-REN Centre for Ecological ResearchVácrátótHungary Department of Environmental and Landscape Geograph. ELTE Eötvös Loránd UniversityBudapestHungary Department of Biology University of North CarolinaChapel HillNC 27599USA Centre of Marine Sciences University of AlgarveCampus de GambelasFaroPortugal CAS Key Laboratory of Experimental Marine Biology Institute of OceanologyChinese Academy of SciencesQingdao 266071China University of Ch.nese Academy of Sciences Beijing 100049China

Correlative species distribution models(SDMs)are important tools to estimate species’geograph.c distribution across space and time,but th.ir reliability h.avily relies on th. availability and quality of occurrence *** can be biased wh.n occurrences do not fully represent th. environmental requirement of a *** tested to wh.t extent species’ph.siological knowledge migh. influence SDM *** on th. Japanese sea cucumber Apostich.pus japonicus with.n th. coastal ocean of East Asia,we compiled a compreh.nsive dataset of occurrence *** th.n explored th. importance of incorporating ph.siological knowledge into SDMs by calibrating two types of correlative SDMs:a naïve model th.t solely depends on environmental correlates,and a ph.siologically informed model th.t furth.r incorporates ph.siological information as *** furth.r tested th. models’sensitivity to calibration area ch.ices by fitting th.m with.different buffered areas around known *** with.naïve models,th. ph.siologically informed models successfully captured th. negative influence of h.gh.temperature on *** and were less sensitive to th. ch.ice of calibration *** naïve models resulted in more optimistic prediction of th. ch.nges of potential distributions under climate ch.nge(i.e.,larger range expansion and less contraction)th.n th. ph.siologically informed *** findings h.gh.igh. benefits from incorporating ph.siological information into correlative SDMs,namely mitigating th. uncertainties associated with.th. ch.ice of calibration *** th.se promising features,we encourage future SDM studies to consider species ph.si-ological information wh.re available.

关键词： Bayesian approach Climate ch.nge h.bitat suitability Ph.siological knowledge Species distribution model

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Dcalycinumines A-E,Alkaloids with.Cytotoxic Activities of Nasoph.ryngeal Carcinoma Cells from Daph.iph.llum calycinum

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Ch.nese Journal of Ch.mistry 2024年第1期42卷 35-42页

作者： Qing Tang xiao-Yong Dai qiang Lin Zh.-Peng Ling Yi-Kun h.o Tian-Xi Zh. Ji-h.i Zh.ng Yi-Bo h.u Yao-Lan Li Lai-qiang h.ang Jing-h.o Wang Guo-Cai Wang Yu-Bo Zh.ng Guangdong Clinical Translational Centerfor Targeted Drug Department of PharmacologySchoolof MedicineJinan University GuangzhouGuangdong 510632China Institute of Traditional Ch.nese Medicine&Natural Products Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs ResearchCollegeof PharmacyJinan UniversityGuangzhouGuangdong511443China Institute of Bioph.rmaceutical and h.alth.Engineering Shenzhen Key Laboratory of Gene and Antibody TherapyState Key Laboratory of Chemical OncogenomicsShenzhen International Graduate SchoolTsinghua UniversityShenzhenGuangdong 518055China Th. Guangzh.u Key Laboratoryof Basic and Translational Research.on Ch.onic Disease Department of PharmacyThe First Affiliated HospitalJinan UniversityGuangzhouGuangdong 510630China

Fivenovel Daph.iph.llum alkaloids,named dcalycinumines A-E(1-4,6),andeigh. previously described Daph.iph.llum alkaloids(5,7-13)were isolated from Daph.iph.llum *** 1 is th. first Daph.iph.llum alkaloid possessing a h.gh.y rearranged 6/6/6/7/5/6 h.xacyclic arch.tecture with.a unique 3-meth.l-1-azabicyclo[4,4,0]decane ring *** 2 represents a rare diamino Daph.iph.llum alkaloid with.an unprecedented 6/5/5/6/6/5 carbon skeleton featuring a unique 1-aza-6-azaspiro[4,5]decane unit,wh.reas 3 also represents a rare diamino Daph.iph.llum alkaloid as a possible precursor of *** 4 is th. second example of c-22-nor yuzurimine-type *** structures and absolute configurations were elucidated by h.ESIMS,NMR spectroscopic analyses,EcD calculations,and single-crystal X-ray ***,compound 1 sh.wed remarkable antitumor activities,wh.ch.could inh.bit th. proliferation,migration and invasion of nasoph.ryngeal carcinoma cells,and promoted nasoph.ryngeal carcinoma cells apoptosis.

关键词： Daph.iph.llum calycinum Natural products Daph.iph.llum alkaloid Structural elucidation Biological activity Apoptosis Nasoph.ryngealcarcinoma

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Recent Advances in Pd-Catalyzed Reactions Involving th. “On-Water” Mech.nism

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Ch.nese Journal of Ch.mistry 2024年第5期42卷 533-542页

作者： Dong Wei Guo-qiang Lin State Key Laboratory of Systems Medicine for Cancer Shanghai Cancer InstituteShanghai Key Laboratory of Systems Regulation and Clinical Translation for CancerRen Ji HospitalShanghai Jiao Tong University School of MedicineShanghai200127 China State Key Laboratory of Ch.mical Biology Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai200032 China

As th. ch.mical industry grapples with.th. need for more eco-friendly practices,th. use of water as a reaction medium is gaining attraction in organic *** mini-review delves into Pd-catalyzed reactions th.t utilize th. "on-water" mech.nism,spanning from 2019 to late *** reactions are neatly categorized into several types: (A) Catalytic C—h.activations,(B) Mizoroki- h.ck-type reactions,(C) Suzuki-Miyaura reactions,and (D) Cyclization *** sh.wcasing th. potential of water as a sustainable reaction medium for organic transformations,th.se reactions leave no doubt about th. importance of embracing eco-friendly practices in th. ch.mical *** Scientists In 1980,a seminal work by Breslow et *** an acceleration of reaction rate in th. Diels-Alder *** and co-workers noted a significant increase in th. rate of th. [2σ+2σ+2π] cycloaddition of quadricyclane and dimeth.l azodicarboxylate (DMAD) wh.n th. reaction was conducted in water,as opposed to wh.n it was carried out in organic *** term "on-water" was th.n coined to describe th.s *** strategy was furth.r expanded to transition-metal catalyzed transformations by Ackermann in ***,Varma and Leazer disclosed a Pd-catalyzed Mizoroki-h.ck type arylation of alkenes with.diaryliodonium salts “on-water”.Th. enantioselective version of "on-water" process was not realized until 2014 by th. Zh.u *** on,th. Sch.ub group described a Pd-catalyzed Suzuki–Miyaura coupling reaction of electron-poor aryl ch.orides with.water,using only 50 ppm of catalyst *** recently,Liu and Lin extended th. "on-water" strategy to Pd-catalyzed double Mizoroki-h.ck *** mini-review h.s focused on Pd-catalyzed reactions involving th. “on-water” mech.nism.

关键词： Pd-catalyzed “On-water” Green ch.mistry Aqueous reactions Mech.nism Meth.dology and reactions Mizoroki-h.ck reaction Cross-coupling

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Effect of ultrasonic and mech.nical vibration treatments on evolution of Mn-rich.ph.ses and mech.nical properties of Al−12Si−4Cu−1Ni−1Mg−2Mn piston alloys

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Transactions of Nonferrous Metals Society of Ch.na 2024年第8期34卷 2393-2414页

作者： Bo LIN Xiang-xiang h. Song-ch.o XIA h.a-qiang xiao Yu-liang Zh.O Kh.sh.yar Kh.NLARI Sch.ol of Mech.nical Engineering Guizhou UniversityGuiyang 550025China Sch.ol of Mech.nical Engineering Dongguan University of TechnologyDongguan 523808China Centro Nacional de Investigaciones Metalúrgicas(CENIM) C.S.I.C.Avda.de Gregorio del Amo 8Madrid 28040Spain Department of Ch.mical&Biotech.ological Engineering Universitéde SherbrookeQuébecQC J1K 2R1Canada

Effects of ultrasonic vibration(UV)and mech.nical vibration(MV)on th. Mn-rich.ph.se modification and mech.nical properties of Al−12Si−4Cu−1Ni−1Mg−2Mn piston alloys were *** results sh.w th.t th. UV and UV+MV treatments can significantly refine and fragmentize th. *** addition,UV treatment can significantly passivate th. primary Mn-rich.Al15Mn3Si2 *** formation mech.nisms of refinement and passivation of th. grains and non-dendrite particles were *** with.th. gravity die-cast alloys,th. UV and UV+MV treated alloys exh.bit improved tensile and creep resistance at room and elevated *** results can be attributed to th. refinement of th.α(Al)grains and th. secondary intermetallics,th. increased proportion of refined h.at-resistant precipitates,and th. formation of nano-sized Si *** ultimate tensile strength.of th. UV treated alloys at 350°C exceeds th.t of commercial piston *** indicates th. h.gh.application potential of th. developed piston alloys in density diesel engines.

关键词： Al−Si piston alloys Mn-rich.ph.ses mech.nical properties ultrasonic vibration mech.nical vibration

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I-DCGAN and TOPSIS-IFP:A simulation generation model for radiograph.c flaw detection images in ligh. alloy castings and an algorith. for quality evaluation of generated images

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Ch.na Foundry 2024年第3期21卷 239-247页

作者： Ming-jun h.u h.o Dong xiao-yuan Ji Wen-bing Zou Xiang-sh.ng Xia Meng Li Ya-jun Yin Bao-h.i Li qiang Ch.n Jian-xin Zh.u State Key Laboratory of Materials Processing and Die&Mould Tech.ology Huazhong University of Science and TechnologyWuhan 430074China Xinjiang Tech.ology(Jiangsu)Co. Ltd.Nantong 226100JiangsuChina South.est Tech.ique and Engineering Research.Institute Chongqing 400039China Sh.ngh.i Spacefligh. Precision Mach.nery Institute Shanghai 201600China

Th. intelligent detection tech.ology driven by X-ray images and deep learning represents th. forefront of advanced tech.iques and development trends in flaw detection and automated evaluation of ligh. alloy ***,th. efficacy of deep learning models h.nges upon a substantial abundance of flaw *** existing research.on X-ray image augmentation for flaw detection suffers from sh.rtcomings such.as poor diversity of flaw samples and low reliability of quality *** th.s end,a novel approach.was put forward,wh.ch.involves th. creation of th. Interpolation-Deep Convolutional Generative Adversarial Network(I-DCGAN)for flaw detection image generation and a compreh.nsive evaluation algorith. named TOPSIS-IFP.I-DCGAN enables th. generation of h.gh.resolution,diverse simulated images with.multiple appearances,ach.eving an improvement in sample diversity and quality wh.le maintaining a relatively lower computational ***-IFP facilitates multi-dimensional quality evaluation,including aspects such.as diversity,auth.nticity,image distribution difference,and image distortion *** results indicate th.t th. X-ray radiograph.c images of magnesium and aluminum alloy castings ach.eve optimal performance wh.n trained up to th. 800th.and 600th.epoch.,*** TOPSIS-IFP value reach.s 78.7%and 73.8%similarity to th. ideal solution,*** to single index evaluation,th. TOPSIS-IFP algorith. ach.eves h.gh.r-quality simulated images at th. optimal training *** approach.successfully mitigates th. issue of unreliable quality associated with.single index *** image generation and compreh.nsive quality evaluation meth.d developed in th.s paper provides a novel approach.for image augmentation in flaw recognition,h.lding significant importance for enh.ncing th. robustness of subsequent flaw recognition networks.

关键词： ligh. alloy casting flaw detection image generator discriminator compreh.nsive evaluation index

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Arbitrary topological ch.rge vortex beams from carbon dots random lasers

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Rare Metals 2024年第8期43卷 3844-3853页

作者： Xiang-Dong Wang xiao-Bo Mi Jiu-Ru h. Feng-Ying Ma Jun-Qiao Wang Li Song Yong-qiang Zh.ng Si-Yu Lu Yong-Sh.ng h. Sch.ol of Ph.sics and Microelectronics Zhengzhou UniversityZhengzhou 450001China State Key Laboratory of Reliability and Intelligence of Electrical Equipment and Tianjin Key Laboratory of Electronic Materials and Devices School of Electronics and Information EngineeringHebei University of TechnologyTianjin 300401China Green Catalysis Center College of ChemistryZhengzhou UniversityZhengzhou450001China

Vortex beams h.ve attracted great attention due to th.ir promising applications in th. fields of h.gh.capacity optical communication,optical micromanipulation,and quantum information ***,we demonstrate vortex beams with.flexible control of th. topological ch.rge and modes in a carbon dots random laser for th. first *** beams with.different types,including th. Laguerre-Gaussian(LG),Bessel-Gaussian(BG),LG-superposition,and polarized vortex beams with.topological ch.rges up to 50,h.ve been successfully ***,vortex beams can be well realized in carbon dots random lasers with.different emission wavelength. covering from 465 to 612 *** work would not only enrich.th. types of vortex laser,especially for solution-processable lasers,but also provide a new route to realizing multicolor and wavelength.tunable vortex lasers.

关键词： Carbon dots Random lasers Vortex beam Topological ch.rge Spatial ligh. modulator

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Application of non-mydriatic fundus ph.tograph.-assisted telemedicine in diabetic retinopath. screening

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World Journal of Diabetes 2024年第2期15卷 251-259页

作者： Wan Zh.u xiao-Jing Yuan Jie Li Wei Wang h.o-qiang Zh.ng Yuan-Yuan h. Sh.n-Dong Ye Department of Endocrinology The First Affiliated Hospital of University of Science and Technology of ChinaDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230001Anhui ProvinceChina Department of Endocrinology Anhui Provincial HospitalAffiliated to Anhui Medical UniversityHefei 230001Anhui ProvinceChina

BACKGROUND Early screening and accurate staging of diabetic retinopath.(DR)can reduce blindness risk in type 2 diabetes ***’s complex path.genesis involves many factors,making oph.h.lmologist screening alone insufficient for prevention and ***,endocrinologists are th. first to see diabetic patients and th.s sh.uld screen for retinopath. for early *** To explore th. efficacy of non-mydriatic fundus ph.tograph.(NMFP)-enh.nced telemedicine in assessing DR and its various *** Th.s retrospective study incorporated findings from an analysis of 93 diabetic patients,examining both.NMFP-assisted telemedicine and fundus fluorescein angiograph.(FFA).It focused on assessing th. concordance in DR detection between th.se two ***,receiver operating ch.racteristic(ROC)curves were generated to determine th. optimal sensitivity and specificity of NMFP-assisted telemedicine,using FFA outcomes as th. standard *** In th. context of DR diagnosis and staging,th. kappa coefficients for NMFPassisted telemedicine and FFA were recorded at 0.775 and 0.689 respectively,indicating substantial intermeth.d ***,th. NMFP-assisted telemedicine’s predictive accuracy for positive FFA outcomes,as denoted by th. area under th. ROC curve,was remarkably h.gh.at 0.955,with.n a confidence interval of 0.914 to 0.995 and a statistically significant P-value of less th.n *** predictive model exh.bited a specificity of 100%,a sensitivity of 90.9%,and a Youden index of *** NMFP-assisted telemedicine represents a pragmatic,objective,and precise modality for fundus examination,particularly applicable in th. context of endocrinology inpatient care and primary h.alth.are settings for diabetic *** implementation in th.se scenarios is of paramount significance,enh.ncing th. clinical accuracy in th. diagnosis and th.rapeutic management of *** meth.dology not only streamlines patient evaluation

关键词： Diabetes Diabetic retinopath. Non-mydriatic fundus ph.tograph.-assisted telemedicine Fundus fluorescein angiograph.

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Generation of mitoch.ndrial replacement monkeys by female pronucleus transfer

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Zoological Research 2024年第2期45卷 292-298页

作者： Ch.n-Yang Li Xing-Ch.n Liu Yu-Zh.o Li Yan Wang Yan-h.ng Nie Yu-Ting Xu xiao-Tong Zh.ng Yong Lu qiang Sun Institute of Neuroscience Center for Excellence in Brain Science and Intelligence TechnologyState Key Laboratory of NeuroscienceChinese Academy of SciencesShanghai 200031China Key Laboratory of Genetic Evolution and Animal Models Chinese Academy of SciencesKunming 650201China University of Ch.nese Academy of Sciences Beijing 100049China

Mutations in mitoch.ndrial DNA(mtDNA)are maternally inh.rited and h.ve th. potential to cause severe *** replacement th.rapies,including spindle,polar body,and pronuclear transfers,are promising strategies for preventing th. h.reditary transmission of mtDNA *** pronuclear transfer h.s been used to generate mitoch.ndrial replacement mouse models and h.man embryos,its application in non-h.man primates h.s not been previously *** th.s study,we successfully generated four h.alth. cynomolgus monkeys(Macaca fascicularis)via female pronuclear *** individuals all survived for more th.n two years and exh.bited minimal mtDNA carryover(3.8%–6.7%),as well as relatively stable mtDNA h.teroplasmy dynamics during *** successful establish.ent of th.s nonh.man primate model h.gh.igh.s th. considerable potential of pronuclear transfer in reducing th. risk of inh.rited mtDNA diseases and provides a valuable preclinical research.model for advancing mitoch.ndrial replacement th.rapies in h.mans.

关键词： Non-h.man primates Mitoch.ndrial replacement Female pronuclear transfer

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Anti-Byzantine Attacks Enabled Veh.cle Selection for Asynch.onous Federated Learning in Veh.cular Edge Computing

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Ch.na Communications 2024年第8期21卷 1-17页

作者： Zh.ng Cui Xu xiao Wu Qiong Fan Pingyi Fan qiang Zh. h.iling Wang Jiangzh.u Sch.ol of Internet of Th.ngs Engineering Wuxi Institute of TechnologyWuxi 214121China Sch.ol of Internet of Th.ngs Engineering Jiangnan UniversityWuxi 214122China Department of Electronic Engineering Beijing National Research Center for Information Science and TechnologyTsinghua UniversityBeijing 100084China Qualcomm San Jose CA 95110USA Sch.ol of Engineering University of KentCT27NT CanterburyU.K

In veh.cle edge computing(VEC),asynch.onous federated learning(AFL)is used,wh.re th. edge receives a local model and updates th. global model,effectively reducing th. global aggregation *** to different amounts of local data,computing capabilities and locations of th. veh.cles,renewing th. global model with.same weigh. is *** above factors will affect th. local calculation time and upload time of th. local model,and th. veh.cle may also be affected by Byzantine attacks,leading to th. deterioration of th. veh.cle ***,based on deep reinforcement learning(DRL),we can consider th.se factors compreh.nsively to eliminate veh.cles with.poor performance as much.as possible and exclude veh.cles th.t h.ve suffered Byzantine attacks before *** th. same time,wh.n aggregating AFL,we can focus on th.se veh.cles with.better performance to improve th. accuracy and safety of th. *** th.s paper,we proposed a veh.cle selection sch.me based on DRL in *** th.s sch.me,veh.cle’s mobility,ch.nnel conditions with.temporal variations,computational resources with.temporal variations,different data amount,transmission ch.nnel status of veh.cles as well as Byzantine attacks were taken into *** results sh.w th.t th. proposed sch.me effectively improves th. safety and accuracy of th. global model.

关键词： asynch.onous federated learning byzantine attacks veh.cle selection veh.cular edge computing

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