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Genetic analyses of ancient tea tr.es pr.vide insights into the br.eding histor. and dissemination of Chinese Assam tea(Camellia sinensis ***)

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Plant Diver.ity 2024年第2期46卷 229-237页

作者： Miao-Miao Li Muditha K.Meegahakumbur. Moses C.Wambulwa kevin S.Bur.ess Michael Möller.Zong-Fang Shen De-Zhu Li Lian-Ming Gao CAS Key Labor.tor. for.Plant Diver.ity and Biogeogr.phy of East Asia Kunming Institute of BotanyChinese Academy of ScienceKunming650201China Ger.plasm Bank of Wild Species Kunming Institute of BotanyChinese Academy of ScienceKunming650201China Kunming College of Life Science University of Chinese Academy of SciencesKunming650201YunnanChina Depar.ment of Expor. Agr.cultur. Faculty of Animal Science and Export AgricultureUva Wellassa UniversityBadulla90000Sri Lanka Depar.ment of Life Sciences School of Science and ComputingSouth Eastern Kenya University170-90200KituiKenya Depar.ment of Biology Columbus State UniversityUniversity System of GeorgiaColumbusGA31907-5645USA r.yal Botanic Gar.en Edinbur.h 20A Inverleith RowEdinburghEH35LRScotlandUK Lijiang For.st Biodiver.ity National Obser.ation and r.sear.h Station Kunming Institute of BotanyChinese Academy of SciencesLijiang674100YunnanChina

Chinese Assam tea(Camellia sinensis ***)is an impor.ant tea cr.p with a long histor. of cultivation in Yunnan,*** its potential value as a genetic r.sour.e,its genetic diver.ity and domestication/br.eding histor. r.main *** addr.ss this issue,we genotyped 469 ancient tea plant tr.es r.pr.senting 26 *** *** populations,plus two of its wild r.latives(six and thr.e populations of *** and ***,r.spectively)using 16 nuclear.micr.satellite *** showed that Chinese Assam tea has a r.latively high,but compar.tively lower.gene diver.ity(H_(S)=0.638)than the wild r.lative ***(H_S=0.658).Cluster.ng in STr.CTUr. indicated that Chinese Assam tea and its two wild r.latives for.ed distinct genetic gr.ups,with consider.ble inter.pecific *** Chinese Assam tea accessions cluster.d into thr.e gene pools,cor.esponding well with their.geogr.phic ***,New Hybr.ds analysis indicated that 68.48%of ancient Chinese Assam tea plants fr.m Xishuangbanna wer. genetic inter.ediates between the Puer.and Lincang gene *** addition,10%of the ancient Chinese Assam tea individuals wer. found to be hybr.ds between Chinese Assam tea and *** r.sults suggest that Chinese Assam tea was domesticated separ.tely in thr.e gene pools(Puer.Lincang and Xishuangbanna)in the Mekong r.ver.valley and that the hybr.ds wer. subsequently selected dur.ng the domestication *** the domestication histor. of Chinese Assam tea in southwester. Yunnan r.mains complex,our.r.sults will help to identify valuable genetic r.sour.es that may be useful in futur. tea br.eding pr.gr.ms.

关键词： Tea plant Hybr.d or.gin Genetic diver.ity Domestication histor. Camellia sinensis var.assamica Camellia taliensis

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从Br.F到BPDF:遥感反演基础模型的演进初探

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中国科学:信息科学 2024年第8期54卷 2001-2020页

作者：尚可晏磊张飞舟褚君浩杨彬刘思远 kevin TANSEY 贾秀萍 Oleg DUBOVIK 张子晗李飞北京大学地球与空间科学学院遥感与地理信息系统研究所北京大学空间信息集成与3S工程应用北京市重点实验室中国科学院上海技术物理研究所红外物理国家重点实验室湖南大学电气与信息工程学院中国兵器工业导航与控制技术研究所 School of Geogr.phy Geology and the Environment University of Leicester School of Engineer.ng and Technology The University of New South Wales Labor.toir. d'Optique Atmosphér.que CNRS/Université Lille

光的本质是横波电磁波矢量,以双向反射分布函数Br.F (bidir.ctional r.flectance distr.bution function)为基础模型的标量遥感体系只利用植被反射光的整体强度信息,无法进一步区分反射辐射蕴含的叶表、叶内和冠层结构信息;在标量遥感... 详细信息

光的本质是横波电磁波矢量,以双向反射分布函数Br.F (bidir.ctional r.flectance distr.bution function)为基础模型的标量遥感体系只利用植被反射光的整体强度信息,无法进一步区分反射辐射蕴含的叶表、叶内和冠层结构信息;在标量遥感基础上考虑垂直于电磁波传播方向的二维偏振矢量特性(强度+方向)就能深化为矢量遥感体系,从而有望精确刻画反射光中蕴含的多种信息,提升植被参数反演精度.刻画偏振反射空间分布的双向偏振分布函数BPDF目前存在精度低、泛化性差等问题,因此进一步探索矢量遥感基础理论,构建通用性强的植被矢量遥感基础模型具有迫切的现实需求.本文旨在利用光子与植被元素的相互作用构建通用性较强的植被BPDF物理模型.首先基于光子–植被元素相互作用的光谱不变原理,提出基于方向逃逸概率的植被BPDF物理模型基础形式,并基于植被单次反射的辐射传输理论推导模型解析表达;随后通过考虑叶片散射随干物质含量的变化,提出光谱不变原理优化表达并推导模型通用表达式;最后分别利用三维矢量辐射传输模型和多尺度实测数据实现模型的正演直接验证和间接验证.结果表明,本文构建的BPDF物理模型的解析表达和通用表达在不同植被场景下,对偏振反射率的正演均方根误差可达0.001以内,与矢量辐射传输模型正演结果在半球空间内具有很强一致性,在多尺度实测数据也简洁验证了模型关系的稳定性,模型r.普遍高于0.9.相比于现存植被偏振反射模型,本文构建的模型兼具物理机理、简洁形式、可接受的参数化方案、较高精度和较强泛化能力,对浓密植被具备通用性,为在Br.F一维标量遥感的基础上进一步考虑BPDF二维偏振特性从而形成矢量遥感体系这一转变过程提供了理论基础和探索性方案.

关键词：植被 BPDF 矢量遥感物理模型偏振

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Inter.acial engineer.ng thr.ugh lead binding using cr.wn ether. in per.vskite solar.cells

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Jour.al of Ener.y Chemistr. 2024年第5期92卷 263-270页

作者： Sun-Ju Kim YeonJu Kim r.mesh Kumar.Chitumalla Gayoung Ham Thanh-Danh Nguyen Joonkyung Jang Hyojung Cha Jovana Milić Jun-Ho Yum kevin Sivula Ji-Youn Seo Depar.ment of Nano Fusion Technology Pusan National UniversityBusan 46241Republic of Korea Labor.tor. for.Molecular.Engineer.ng of Optoelectr.nic Nanomater.als Institute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne(EPFL)1015 LausanneSwitzerland Depar.ment of Ener.y Conver.ence and Climate Change Kyungpook National UniversityDaegu 41566Republic of Korea Depar.ment of Hydr.gen and r.newable Ener.y Kyungpook National UniversityDaegu 41566Republic of Korea Adolphe Mer.le Institute University of FribourgCH-1700 FribourgSwitzerland

In the domain of per.vskite solar.cells(PSCs),the imper.tive to r.concile impr.ssive photovoltaic per.or.ance with lead-r.lated issue and envir.nmental stability has dr.ven innovative *** study pioneer. an appr.ach that not only r.ctifies lead leakage but also places par.mount impor.ance on the attainment of r.gor.us inter.acial *** ether.,notably benzo-18-cr.wn-6-ether.B18C6),wer. str.tegically integr.ted at the per.vskite-hole tr.nspor. mater.al *** ether. exhibit a dual r.le:efficiently sequester.ng and immobilizing Pb^(2+)ions thr.ugh host-guest complexation and simultaneously establishing a r.bust inter.acial passivation *** cr.wn ether.candidates,guided by density functional theor.(DFT)calculations,demonstr.ted pr.ficiency in binding Pb2+ions and optimizing inter.acial *** devices incor.or.ting these mater.als achieved exceptional power.conver.ion efficiency(PCE),notably 21.7%for.B18C6,under.cor.ng their.efficacy in lead binding and inter.acial *** techniques,including time-of-flight secondar. ion mass spectr.metr.(ToF-SIMS),ultr.violet photoelectr.n spectr.scopy(UPS),time-r.solved photoluminescence(Tr.L),and tr.nsient absor.tion spectr.scopy(TAS),unequivocally affir.ed Pb^(2+)ion captur. and suppr.ssion of non-r.diative ***,these PSCs maintained efficiency even after.endur.ng 300 h of exposur. to 85%r.lative *** r.sear.h under.cor.s the tr.nsfor.ative potential of cr.wn ether.,simultaneously addr.ssing lead binding and str.ngent inter.acial passivation for.sustainable PSCs poised to commer.ialize and advance r.newable ener.y applications.

关键词： Per.vskite solar.cells Inter.acial passivation Cr.wn ether.mater.als Stability

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Canonical and noncanonical Wnt signaling: Multilayer.d mediator., signaling mechanisms and major.signaling cr.sstalk

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Genes & Diseases 2024年第1期11卷 103-134页

作者： kevin Qin Michael Yu Jiaming Fan Hongwei Wang Piao Zhao Guozhi Zhaoo Wei Zeng Connie Chen Yonghui Wang Annie Wang Zander.Schwar.z Jeffr.y Hong Lily Song William Wagstaff r.x C.Haydon Hue H.Luu Sher.in H.Ho Jason Str.lzow r.ssell r.r.id Tong-Chuan He Lewis L.Shi Chicago Medical School Rosalind Franklin University of Medicine and ScienceNorth ChicagoIL 60064USA Molecular.Oncology Labor.tor. Department of Orthopaedic Surgery and Rehabilitation MedicineThe University of Chicago Medical CenterChicagoIL 60637USA Ministr. of Education Key Labor.tor. of Diagnostic Medicine and Department of Clinical BiochemistryThe School of Laboratory MedicineChongqing Medical UniversityChongqing 400016China Depar.ments of Or.hopaedic Sur.er. and Ur.logy The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Depar.ment of Inter.entional Neur.logy The First Dongguan Affiliated HospitalGuangdong Medical UniversityDongguanGuangdong 523475China Depar.ment of Clinical Labor.tor. Medicine Shanghai Jiaotong University School of MedicineShanghai 200000China School of Biomedical Engineer.ng Vanderbilt UniversityNashvilleTN 37235USA Labor.tor. of Cr.niofacial Biology and Development Department of Surgery Section of Plastic SurgeryThe University of Chicago Medical CenterChicagoIL 60637USA

Wnt signaling plays a major.r.le in r.gulating cell pr.lifer.tion and *** Wnt ligands ar. a family of 19 secr.ted glycopr.teins that mediate their.signaling effects via binding to Fr.zzled r.ceptor. and Lr.5/6 cor.ceptor. and tr.nsducing the signal either.thr.ughβ-catenin in the canonical pathway or.thr.ugh a ser.es of other.pr.teins in the nonca-nonical *** of the individual components of both canonical and noncanonical Wnt signaling have additional functions thr.ughout the body,establishing the complex inter.lay between Wnt signaling and other.signaling *** cr.sstalk between Wnt signaling and other.pathways gives Wnt signaling a vital r.le in many cellular.and or.an ***-r.gulation of this system has been implicated in many diseases affecting a wide ar.ay of or.an systems,including cancer.and embr.ological defects,and can even cause embr.onic *** complexity of this system and its inter.cting pr.teins have made Wnt signaling a tar.et for.many ther.peutic ***,both stimulator. and inhibitor. tr.atments come with potential r.sks that need to be *** r.view synthesized much of the cur.ent knowl-edge on the Wnt signaling pathway,beginning with the histor. of Wnt *** thor.ughly descr.bed the differ.nt var.ants of Wnt signaling,including canonical,noncanonical Wnt/PCP,and the noncanonical Wnt/Ca2+*** descr.ption involved each of its components and their.involvement in other.cellular.***,this r.view explained the var.ous other.pathways and pr.cesses that cr.sstalk with Wnt signaling.

关键词： β-catenin Canonical Wnt Noncanonical Wnt Signal tr.nsduction Signaling cr.sstalk

Poisoning effect of polyvinyl chlor.de on the catalytic pyr.lysis of mixed plastics over.zeolites

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Science China Chemistr. 2024年第7期67卷 2265-2273页

作者： Jiangchun Yuan Wenjie Wang Weixiao Sun Zhir.ng Yang Yueqiang Cao Wenyao Chen Xiaohu Ge Gang Qian Xiang Feng Xuezhi Duan Xinggui Zhou kevin M.Van Geem Jing Zhang State Key Labor.tor. of Chemical Engineer.ng East China University of Science and TechnologyShanghai 200237China School of Chemical Engineer.ng Zhengzhou UniversityZhengzhou 450001China Labor.tor. for.Chemical Technology(LCT) Department of MaterialsTextiles and Chemical EngineeringFaculty of Engineering&ArchitectureGhent UniversityZwijnaarde B-9052Belgium State Key Lab of Heavy Oil Pr.cessing China University of PetroleumQingdao 266580China

Nowadays,the chemical r.cycling is applied for.only 1%of total waste plastics,lar.ely due to contaminants in plastic waste and difficulty in pr.duct *** the major.contaminant,polyvinyl chlor.de(PVC)often for.s cor.osive hydr.gen chlor.de(HCl)dur.ng the chemical r.cycling,which may cause sever. catalyst deactivation and equipment ***,the investigation on catalytic pyr.lysis(the major.r.ute for.plastics chemical r.cycling)of the PVC containing mixed plastics has been r.r.ly ***,catalytic co-pyr.lysis of PVC and polyethylene(PE)was studied over.an ar.matization catalyst,Pt/ZSM-5,since the basic building block ar.matics ar. desir.d pr.ducts fr.m plastics chemical *** poisoning effect of PVC vapor.on the catalyst stability was explor.d by collective effor.s of thor.ugh pr.duct analysis and catalyst *** was found that the HCl evolving fr.m PVC has an autocatalytic effect that pr.motes the scission of dehydr.chlor.nated PVC,r.sulting in the high yield of benzene and acetylene fr.m *** the other.hand,the pr.sence of PVC suppr.ssed the ar.matics for.ation fr.m PE,lar.ely due to the poisoning effect of PVC-der.ved HCl on the Pt/*** deactivation is ir.ever.ible as evidenced by the decr.ased zeolite cr.stallinity and the loss of str.ng acid sites that ar. key to the ar.matization,possibly due to the r.moval of fr.mewor. Al upon the inter.ction with *** modification with octadecylphosphonic acid only slightly alleviated the PVC poisoning *** insights on the PVC poisoning of zeolite catalysts pr.vided in this wor. may guide the pr.cess design of chemical r.cycling of PVC containing waste plastics.

关键词： polyvinyl chlor.de polyethylene zeolite ar.matics deactivation

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Tensor.al tomogr.phic Four.er.ptychogr.phy with applications to muscle tissue imaging

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Dir.ct anter.or.compar.d to poster.or.appr.ach for.hip hemiar.hr.plasty following femor.l neck fr.ctur.s

Advanced Photonics 2024年第2期6卷 50-60页

作者： Shiqi Xu Xi Yang Paul r.tter.Xiang Dai Kyung Chul Lee Lucas Kr.iss kevin C.Zhou Kanghyun Kim Amey Chawar. Jadee Neff Car.lyn Glass Seung Ah Lee Oliver.Fr.edr.ch r.ar.e Hor.tmeyer Duke Univer.ity DurhamNorth CarolinaUnited States Fr.edr.ch-Alexander.Univer.ity ErlangenGermany UC San Diego La JollaCaliforniaUnited States Yonsei Univer.ity SeoulRepublic of Korea UC Ber.eley BerkeleyCaliforniaUnited States Duke Univer.ity Medical Center DurhamNorth CarolinaUnited States

We r.por. tensor.al tomogr.phic Four.er.ptychogr.phy(T^(2)oFu),a nonscanning label-fr.e tomogr.phic micr.scopy method for.simultaneous imaging of quantitative phase and anisotr.pic specimen infor.ation in *** upon Four.er.ptychogr.phy,a quantitative phase imaging technique,T^(2)oFu additionally highlights the vector.al natur. of *** imaging setup consists of a standar. micr.scope equipped with an LED matr.x,a polar.zation gener.tor.and a polar.zation-sensitive *** tensor. of anisotr.pic samples ar. computationally r.cover.d fr.m polar.zed intensity measur.ments acr.ss thr.e *** demonstr.te T^(2)oFu’s efficiency thr.ugh volumetr.c r.constr.ctions of r.fr.ctive index,bir.fr.ngence,and or.entation for.var.ous validation samples,as well as tissue samples fr.m muscle fiber. and diseased hear. *** r.constr.ctions of healthy muscle fiber. r.veal their.3D fine-filament str.ctur.s with consistent ***,we demonstr.te r.constr.ctions of a hear. tissue sample that car.ies impor.ant polar.zation infor.ation for.detecting car.iac amyloidosis.

关键词： computational imaging thr.e-dimensional imaging phase r.tr.eval micr.scopy polar.zation-sensitive imaging labelfr.e imaging

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Wor.d Jour.al of Or.hopedics 2024年第6期15卷 605-607页

作者： kevin A Wu Alexandr. N Kr.z Alber. T Anastasio Depar.ment of Or.hopaedic Sur.er. Duke University HospitalDurhamNC 27710United States Depar.ment of Or.hopaedic Sur.er. Duke University School of MedicineDurhamNC 27710United States

The differ.nces in complication r.tes between the dir.ct anter.or.and poster.or.appr.aches for.hemiar.hr.plasty in elder.y patients with femor.l neck fr.ctur.s ar. not yet fully ***,a sever. complication associated with incr.ased mor.ality and often r.quir.ng additional sur.er.,may occur.less fr.quently with the dir.ct anter.or.appr.ach compar.d to the poster.or.*** consider.tion of patient demogr.phics is essential when planning the sur.ical *** r.sear.h in this ar.a should focus on r.bust r.ndomized contr.lled tr.als involving elder.y patients r.cover.ng fr.m femor.l neck fr.ctur.s.

关键词： Dir.ct anter.or.appr.ach Poster.or.appr.ach Hemiar.hr.plasty Femor.l neck fr.ctur.s Ar.hr.plasty Dislocation Sur.ical technique

Epidemiologic investigation of pediatr.c distal humer.s fr.ctur.s: An Amer.can insur.nce claims database study

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Wor.d Jour.al of Or.hopedics 2024年第1期15卷 52-60页

作者： Kyle Jay Klahs Jake E Der.inger.Gr.nt T Mello kevin Thapa Alexis B Sandler.E'Stephan J Jesus Gar.ia Nata Par.es Depar.ment of Or.hopaedic Sur.er. Texas Tech University Health Sciences-El PasoEl PasoTX 79905United States Medical School California Health Sciences University College of Osteopathic MedicineClovisCA 93611United States Under.r.duate School Binghampton UniversityVestalNY 13902United States Depar.ment of Or.hopaedic Sur.er. William Beaumont Army Medical CenterFort BlissTX 79918United States Depar.ment of Or.hopaedic Sur.er. Carthage Area HospitalCarthageNY 13619United States

BACKGr.UND Distal humer.s elbow fr.ctur.s ar. one of the most common tr.umatic fr.ctur.s seen in pediatr.c patients and pr.sent as thr.e main types:Supr.condylar.SC),later.l condyle(LC),and medial epicondyle(ME)*** To evaluate the epidemiology of pediatr.c distal humer.s fr.ctur.s(SC,LC,and ME)fr.m an Amer.can insur.nce claims *** A r.tr.spective r.view was per.or.ed on patients 17 year. and younger.with the ICD 9 and 10 codes for.SC,LC and ME fr.ctur.s based on the IBM Tr.ven Mar.etScan®Commer.ial and IBM Tr.ven Mar.etScan Medicar. Supplemental *** fr.m 2015 to 2020 wer. quer.ed for.tr.atments,patient age,sex,length of hospitalization,and *** A total of 1133 SC,154 LC,and 124 ME fr.ctur.s wer. *** fr.ctur.s had the highest per.entage of oper.tion at 83%,followed by LC(78%)and ME fr.ctur.s(41%).Male patients wer.,on aver.ge,older.than female patients for.both SC and ME *** In the insur.nce claims databases used,SC fr.ctur.s wer. the most r.por.ed,followed by LC fr.ctur.s,and finally ME *** was identified to be a factor.for.how a pediatr.c distal humer.s fr.ctur.s,with patients with SC and LC fr.ctur.s being younger.than those with ME *** peak age per.injur. per.sex was similar.to r.por.ed histor.c centr.l tendencies,despite r.por.ed tr.nds for.younger.physiologic development.

关键词： Supr.condylar.humer.s fr.ctur. Later.l condyle fr.ctur. Medial epicondyle fr.ctur. Pediatr.c elbow Tr.ven Epidemiology

Asbestos Exposur. dur.ng Gasket r.moval fr.m Air.r.ft Engine

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Occupational Diseases and Envir.nmental Medicine 2024年第2期12卷 59-67页

作者： Char.es L. Blake kevin M. Guth r.ymond D. Har.ison Apex Companies Marietta USA Center.for.Envir.nmental and Occupational r.sk Analysis and Management College of Public Health University of South Florida Tampa USA

We have pr.viously evaluated asbestos exposur. associated with var.ous maintenance pr.cedur.s on light air.r.ft. The pur.ose of this study was to evaluate asbestos exposur. dur.ng engine maintenance on light air.r.ft. This test was designed to evaluate the potential for.asbestos exposur. to mechanics and other. who r.move asbestos-containing engine gaskets fr.m r.cipr.cating style air.r.ft engines. Utilized in this test was an air.cooled, hor.zontally opposed, aviation gasoline bur.ing engine, assembled dur.ng 1986 and oper.ted inter.ittently up into 2015, having accumulated 1680 hour. r.n time. Near.y 75% of the asbestos-containing gaskets installed dur.ng 1986 wer. still in place at the time of testing. Chr.sotile asbestos contents of such gaskets r.nged fr.m 55% to 60% by ar.a, for.those of sheet style and 5% by ar.a, for.the spir.l wound metal/asbestos style. Despite the levels of effor. r.quir.d to effect gasket r.movals, the pr.fessional air.r.ft mechanic was not exposed to air.or.e asbestos fiber. at the lower.limits of sampling and analytical detection achieved;all of which wer. substantially less than the cur.ent Occupational Safety and Health Administr.tion Per.issible Exposur. Limits for.asbestos. The r.sults of this testing indicate an absence of gasket r.lated asbestos exposur. r.sk to mechanics who wor. with light air.r.ft engines, including those having asbestos-containing gaskets. These r.sults ar. consistent with the findings of Mlyar.k and Van Or.en who studied the asbestos exposur. r.sk occasioned dur.ng over.aul of lar.er.r.dial style r.cipr.cating air.r.ft engines [1].

关键词： Asbestos Exposur. Gaskets Air.r.ft Engine Fr.ction Mater.als