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Using a.ja.ency ma.rix to explore rema.ka.le a.socia.ions in big a.d sma.l minera. da.a

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Geoscience Frontiers 2024年第5期15卷 61-74页

作者： Xia.g Que Jingyi Hua.g Jolyon ralph Jiyin Zha.g a.irudh Pra.hu Sha.nna.Morrison Robert Ha.en Xia.ga.g Ma Depa.tment of Computer Science University of IdahoMoscowID 83844USA College of Computer a.d Informa.ion Sciences Fujian Agriculture and Forestry UniversityFuzhou 350002China Ea.th a.d Pla.ets La.ora.ory Carnegie Institution for ScienceWashingtonDC 20015USA Hudson Institute of Minera.ogy KeswickVA 22947USA

Da.a.explora.ion,usua.ly the first step in da.a.a.a.ysis,is a.useful method to ta.kle cha.lenges ca.sed by big geoscience *** conducts quick a.a.ysis of da.a.investiga.es the pa.terns,a.d genera.es/refines resea.ch questions to guide a.va.ced sta.istics a.d ma.hine lea.ning *** ba.kground of this work is the open minera. da.a.provided by severa. sources,a.d the focus is different types of a.socia.ions in minera. properties a.d *** in minera.ogy ha.e been a.plying different techniques for exploring such *** the explored a.socia.ions ca. lea. to new scientific insights tha. contribute to crysta.logra.hy,minera.ogy,a.d geochemistry,the explora.ion process is often da.nting due to the wide ra.ge a.d complexity of fa.tors *** this study,our purpose is implementing a.visua.iza.ion tool ba.ed on the a.ja.ency ma.rix for a.va.iety of da.a.ets a.d testing its utility for quick explora.ion of a.socia.ion pa.terns in minera. ***,softwa.e pa.ka.es,a.d use ca.es ha.e been developed to process a.va.iety of minera. *** results demonstra.e the efficiency of a.ja.ency ma.rix in rea.-world *** the developed works of this study a.e open source a.d open a.cess.

关键词： a.ja.ency ma.rix a.socia.ion a.a.ysis Da.a.explora.ion Minera. informa.ics Open da.a

Pla.tid engineering with a. efficient RNa. delivery system ba.ed on ba.teriopha.e MS2 virus-like pa.ticles enha.ces pla.t resista.ce to cotton bollworm

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Molecula. Pla.t 2024年第7期17卷 987-989页

作者： Chunmei Jia.g Jinqiu Fu Fujun Li Ka. Xia.Shengchun Li Ling Cha.g ralph Bock Jia.g Zha.g Sta.e Key La.ora.ory of Bioca.a.ysis a.d Enzyme Engineering School of Life SciencesHubei Hongshan LaboratoryHubei UniversityWuhan 430062China Shenzhen Bra.ch Guangdong Laboratory of Lingnan Modern AgricultureKey Laboratory of Synthetic BiologyMinistry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen518000China Ma.-Pla.ck-Institut fur Molekula.e Pfla.zenphysiologie Am Muhlenberg 114476Potsdam-GolmGermany

Dea. Editor,RNa.ba.ed pesticides a.e a.proa.hing the ma.ket,offering grea. potentia. to control a.ricultura. pests such a. the coleoptera. insect Dia.rotica.virgifera.virgifera.Hea. et a..,2017).However,a.plica.ion to lepidoptera. pests ha. been ha.pered by their inconsistent response to RNa.interference(RNa.).a. a.notorious lepidoptera.pest,Helicoverpa.a.migera.feeds on over 300 species of host pla.ts(Fu et a..,2022).a.though tra.sgenicpla.ts expressingdouble-stra.ded RNa. or microRNa. tha. ta.get essentia. insect genes ca. inhibit the growth of la.va.,complete protection of the pla.ts a.d efficient killing of this insect ha.e not been a.hieved(Ba.ly et a..,2020;Chung et a..,2021;Li et a..,2023).The rela.ively low RNa. efficiency in lepidoptera.s is ma.nly a.tributa.le to the degra.a.ion a.d intra.ellula. sequestra.ion of double-stra.ded RNa.Shukla.et a..,2016;Zhu a.d Pa.li,2020).To overcome these obsta.les a.d improve RNa. efficiency in ***,we a.tempted to deliver RNa. molecules using a.ba.teriopha.e MS2 virus-like pa.ticle(VLP)-ba.ed delivery system(Wa.g et a..,2016).

关键词： overcome offering a.proa.hing

Pa.MYB128 regula.es seconda.y cell wa.l forma.ion by direct a.tiva.ion of cell wa.l biosynthetic genes during wood forma.ion in popla.

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Journa. of Integra.ive Pla.t Biology 2024年第8期66卷 1658-1674页

作者： Yua.yua. Ha. Fa.hua.g Lu Seung-Won Pyo Min-Ha.Kim Ja.-Heung Ko Xia.jing Ya. John ralph Qua.zi Li Sta.e Key La.ora.ory of Tree Genetics a.d Breeding Chinese Academy of ForestryBeijing 100091China Depa.tment of Biochemistry a.d DOE Grea. La.es Bioenergy Resea.ch Center Wisconsin Energy InstituteUniversity of Wisconsin-MadisonWisconsin 53726USA Depa.tment of Pla.t&Environmenta. New Resources Kyung Hee UniversityYongin 17104Korea

The biosynthesis of cellulose,lignin,a.d hemicelluloses in pla.t seconda.y cell wa.ls(SCWs)is regula.ed by a.hiera.chica. tra.scriptiona. regula.ory *** network fea.ures orthologous tra.scription fa.tors sha.ed between popla. a.d a.a.idopsis,highlighting a.founda.iona. simila.ity in their genetic ***,knowledge on the discrepa.t beha.ior of the tra.scriptiona.-level molecula. regula.ory mecha.isms between popla. a.d a.a.idopsis rema.ns *** this study,we investiga.ed the function of Pa.MYB128 during wood forma.ion a.d found it ha. broa.er impa.ts on SCW forma.ion compa.ed to its a.a.idopsis ortholog,*** popla. trees overexpressing Pa.MYB128 exhibited significa.tly enha.ced xylem development,with fiber cells a.d vessels displa.ing thicker wa.ls,a.d a. increa.e in the levels of cellulose,lignin,a.d hemicelluloses in the *** contra.t,pla.ts with domina.t repression of Pa.MYB128 demonstra.ed the opposite *** sequencing a.d reverse tra.scription–qua.tita.ive polymera.e cha.n rea.tion showed tha. Pa.MYB128 could a.tiva.e SCW biosynthetic gene expression,a.d chroma.in immunoprecipita.ion a.ong with yea.t one-hybrid,a.d effector–reporter a.sa.s showed this regula.ion wa. *** a.a.ysis revea.ed tha. Pa.SND1(SECONDa.Y Wa.L-a.SOCIa.ED Na.-DOMa.N PROTEIN1)directly regula.es Pa.MYB128 but not cell wa.l meta.olic genes,highlighting the pivota. role of Pa.MYB128 in the SND1-driven regula.ory network for wood development,thereby crea.ing a.feedforwa.d loop in SCW biosynthesis.

关键词： cellulose hemicellulose lignin Pa.MYB128 Populus tra.scription fa.tor wood forma.ion

Low-tempera.ure ca.a.ytic metha.e deep oxida.ion over sol-gel derived mesoporous ha.sma.nite (Mn_(3)O_(4)) spherica. pa.ticles

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ChemPhysMater

ChemPhysMa.er 2024年第3期3卷 329-340页

作者： Pa.rick Ndouka.Ndouka.Stepha.e Kenmoe Ja.ques Richa.d Ma.he Elie a.a.a.ka.Dick Ha.tma.n Douma.ralph Geba.er Pa.rick Mounta.mbeme Kouotou Depa.tment of Chemistry Faculty of SciencesUniversity of MarouaP.O.Box 814 MarouaCameroon Depa.tment of Theoretica. Chemistry University of Duisburg-EssenD-45141 EssenGermany Depa.tment of Mining Engineering School of Geology and Mining EngineeringUniversity of NgaoundéréP.O.Box 115 MeigangaCameroon Depa.tment of Inorga.ic Chemistry Faculty of ScienceUniversity of YaoundéIP.O.Box 812 YaoundéCameroon Groupe de Simula.ions Numériques en Ma.nétisme et Ca.a.yse Facultédes Sciences et TechniquesUniversitéMarien NgouabiB.P.69 BrazzavilleCongo The a.dus Sa.a. Interna.iona. Centre for Theoretica. Physics(ICTP) 34151 TriesteItaly Na.iona. a.va.ced School of Engineering of Ma.oua University of MarouaP.O.Box 46 MarouaCameroon Higher Institute of a.riculture WoodWater and EnvironmentUniversity of EbolowaP.O.Box 118 EbolowaCameroon

In this study,Mn_(3)O_(4) spherica. pa.ticles(SPs)were synthesized by the sol-gel process,a.ter which they were therma.ly a.nea.ed a. 400℃,a.d comprehensively cha.a.terized.X-ra. Diffra.tion(XRD)revea.ed tha. Mn_(3)O_(4) exhibited a.tetra.ona. spinel structure,a.d Fourier tra.sformed infra.ed(FTIR)spectroscopy identified surfa.ea.sorbed functiona. *** electron microscopy(SEM)a.d the specific surfa.e a.ea.a.a.yses by Bruna.er−Emmett−Teller(BET)revea.ed a.porous,homogeneous surfa.e composed of strongly a.glomera.ed spherica. gra.ns with a. estima.ed a.era.e pa.ticle size of∼35 nm,which corresponded to a.la.ge specific surfa.e a.ea.of∼81.5 m^(2)/g.X-ra. photoelectron spectroscopy(XPS)a.a.ysis indica.ed tha. Mn_(3)O_(4) wa. composed of meta.lic ca.ions(Mn^(4+),Mn_(3)+,a.d Mn^(2+))a.d oxygen species(O_(2)−,OH−a.d CO_(3)2−).The optica. ba.dga. energy is∼2.55 *** of the ca.a.ytic performa.ce of the Mn_(3)O_(4) SPs indica.ed T90 conversion of CH4 to CO_(2) a.d H2O a. 398℃ for ga. hourly spa.e velocity(GHSV)of 72000 mL^(3) g^(−1) h^(−1).This observed performa.ce ca. be a.tributed to the coopera.ive effects of the sma.lest spherica. gra.n size with a.mesoporous structure,which is responsible for the la.ger specific surfa.e a.ea.a.d a.a.la.le surfa.e-a.tive oxygena.ed *** coopera.ive effect of the good reducibility,higher ra.io of a.tive species(OLa./Oa.s),a.d results of density functiona. theory(DFT)ca.cula.ions suggested tha. the tota. oxida.ion of CH4 over the mesoporous Mn_(3)O_(4) SPs might ta.e pla.e via.a.two-term process in which both the La.gmuir−Hinshelwood a.d Ma.s−va. Krevelen mecha.isms a.e coopera.ively involved.

关键词： Sol-gel Ma.ga.ese oxide Ca.a.ytic oxida.ion Metha.e La.gmuir−Hinshelwood mecha.ism Ma.s−va. Krevelen route Two−term process

a.plica.ion of a.P Nonlinea. Ma.h in a.a.yzing a.ithmetic a.d Ra.ia.ion Tra.smission Da.a.(a.plica.ion 1 & 2) [4-21-2024, 820P] (V)

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Journa. of a.plied Ma.hema.ics a.d Physics 2024年第6期12卷 2302-2319页

作者： ralph W. La. Melisa.W. La.-Becker Gra.e Cheng-Dodge 28 Cornerstone Ct. Doylestown PA USA Ha.va.d Medica. School Cambridge MA USA Independent Educa.ion Consulta.ts West Hartford CT USA

In this study, we explore the a.plica.ion of a.P (a.ymptotic curve ba.ed a.d proportiona.ity oriented) a.pha.Beta.(αβ) Nonlinea. Ma.h to a.a.yze a.ithmetic a.d ra.ia.ion tra.smission da.a. Specifica.ly, we investiga.e the rela.ionship between two va.ia.les. The novel a.proa.h involves collecting elementa.y “y” da.a.a.d subsequently a.a.yzing the a.ymptotic cumula.ive or demula.ive (opposite of cumula.ive) Y da.a. In pa.t I, we exa.ine the connection between the common linea. numbers a.d idea. nonlinea. numbers. In pa.t II, we delve into the rela.ionship between X-ra. energy a.d the ra.ia.ion tra.smission for va.ious thin film ma.eria.s. The funda.enta. physica. la. a.serts tha. the nonlinea. cha.ge in continuous va.ia.le Y is nega.ively proportiona. to the nonlinea. cha.ge in continuous va.ia.le X, expressed ma.hema.ica.ly a. dα = −Kdβ. Here: dα {Y, Yu, Yb} represents the cha.ge in Y, with Yu a.d Yb denoting the upper a.d ba.eline a.ymptote of Y. dβ {X, Xu, Xb} represents the cha.ge in X, with Xu a.d Xb denoting the upper a.d ba.eline a.ymptote of X. K represents the proportiona.ity consta.t or ra.e consta.t, which va.ies ba.ed on equa.ion a.ra.gement. K is the key inferentia. fa.tor for describing physica. phenomena.

关键词： a.ymptotic Conca.e a.d Convex Curve Upper a.d Ba.eline a.ymptote Demula.ive vs. Cumula.ive Coefficient of Determina.ion Proportiona.itya.d Position Consta.t Skewed Bell a.d Sigmoid Curve

行星科学研究中热发射光谱的实验测量与定标方法

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空间科学学报 2024年第2期44卷 270-286页

作者：杨亚洲 MILLIKEN ralph E BRa.BLE Micha.l S Pa.TERSON Willia. R 邹永廖刘洋中国科学院国家空间科学中心空间天气学国家重点实验室北京100190 布朗大学地球环境与行星科学学院普罗维登斯02912

准确的物质组成信息是解译行星体形成与演化历史的关键,可见–近红外遥感光谱探测一直是获取行星表面成分的主要技术手段.在热红外谱段光谱特征更为丰富,因此随着探测技术的发展,其在行星探测中得到越来越多的应用.尤其是在目前已经实... 详细信息

准确的物质组成信息是解译行星体形成与演化历史的关键,可见–近红外遥感光谱探测一直是获取行星表面成分的主要技术手段.在热红外谱段光谱特征更为丰富,因此随着探测技术的发展,其在行星探测中得到越来越多的应用.尤其是在目前已经实施与立项的国内外小行星探测任务中,都将热发射光谱仪作为核心载荷之一.为了更好地对将来获取的热发射光谱数据进行解译,建立科学合理的数据处理与定标方案是必不可少的.本文对用于行星科学研究的热发射光谱测量装置的设计、测量及数据处理方法进行了系统分析.针对低温、真空条件下热发射测量过程中样品辐射信号与仪器辐射信号难以分离的问题,提出并论证了基于傅里叶变换红外光谱仪原始测量信号–干涉图的数据处理方法.该方法可以更为有效地分离出样品实际辐射信号,从而获得更为准确的发射率光谱数据.研究结果可为国内相关热发射测量装置的设计与搭建以及未来天问二号等探测数据的处理与科学解译提供参考.

关键词：行星探测热发射光谱实验室测量定标

Messa.e from the Best Pa.er a.a.d Committee

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Computa.iona. Visua. Media 2024年第3期10卷 397-397页

作者： Ming C.Lin Ba.qua. Chen Ying He Wenping Wa.g Kun Zhou ralph Ma.tin a.socia.e Editor-in-Chief University of Ma.yla.d a. College Pa.k USA 不详

Following the success of the pa.t eight yea.s,Tsinghua.University Press ha. continued to sponsor a. a.nua. a.a.d for the best pa.ers published in Computa.iona. Visua. *** pa.ers in 2023 from Computa.iona. Visua. Media.were recommended by a.socia.e Editors a. ca.dida.e pa.ers for the Best Pa.er *** Editors-in-Chief Ming *** a.d ralph Ma.tin led the Best Pa.er a.a.d Committee to select the Best *** ca.eful delibera.ion,the following pa.er wa. chosen with the una.imous consensus a. the winner.

关键词： Visua. a.a.d Messa.e

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摩洛哥泥盆系调查与研究现状

地球科学 2024年第10期 3647-3673页

作者：王志宏曾雄伟危凯吴发富姚华舟 ralph Thoma. Becker 古生物与地质环境演化湖北省重点实验室中国地质调查局武汉地质调查中心(中南地质科技创新中心) 地质古生物研究所德国明斯特大学自然资源部地层与古生物重点实验室

摩洛哥泥盆系因其丰富的化石资源，在地质学尤其是古生物学领域享有盛誉，产出三叶虫、头足类、珊瑚、腕足类、牙形石、鱼类和植物等，化石的保存通常非常完好.这些化石为厘清地层序列，分析生物群落、古环境及关键地质事件等提供了重... 详细信息

摩洛哥泥盆系因其丰富的化石资源，在地质学尤其是古生物学领域享有盛誉，产出三叶虫、头足类、珊瑚、腕足类、牙形石、鱼类和植物等，化石的保存通常非常完好.这些化石为厘清地层序列，分析生物群落、古环境及关键地质事件等提供了重要的依据.此外，摩洛哥具有独特的古地理位置，查明泥盆纪的岩石和生物类型及其时空分布，有助于更好地重建冈瓦纳古陆和劳俄古陆间海洋系统的演化过程.通过对已有文献资料的调研和系统梳理，回顾了摩洛哥地质调查的历史，分析了泥盆纪研究的3个主要阶段，近年来以多学科综合、跨地区合作为主要发展趋势，在古生物、古地理和古气候研究中取得了大量新发现新认识，充分利用好这座化石宝库，将有助于更好理解地球的演化历史和应对当今的生物多样性危机和环境问题.

关键词：摩洛哥泥盆纪地层对比古生物地质演化地层学

Ha.lotype-ba.ed phylogenetic a.a.ysis a.d popula.ion genomics uncover the origin a.d domestica.ion of sweetpota.o

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Molecula. Pla.t 2024年第2期17卷 277-296页

作者： Mengxia. Ya. Ming Li Yunze Wa.g Xinyi Wa.g M-Hossein Moeinza.eh Dora.G.Quispe-Hua.a.quispe Weijua. Fa. Yijie Fa.g Yuqin Wa.g Ha.zhen Nie Zha.gying Wa.g a.ko Ta.a.a.Bettina.Heider Ja. F.Kreuze Godelieve Gheysen Hongxia.Wa.g Ma.tin Vingron ralph Bock Jun Ya.g Sha.gha. Key La.ora.ory of Pla.t Functiona. Genomics a.d Resources Shanghai Chenshan Botanical GardenShanghai 201602China College of Life Sciences Chongqing Normal UniversityChongqing 401331China Biotechnology a.d Nuclea. Technology Resea.ch Institute Sichuan Academy of Agricultural SciencesChengdu 610061China College of Life Sciences Shanghai Normal UniversityShanghai 200234China Depa.tment of Computa.iona. Molecula. Biology Max Planck Institute for Molecular GeneticsIhnestraBe 63-7314195 BerlinGermany Depa.tment of Biotechnology Ghent University9000 GhentBelgium Gua.gdong Provincia. Key La.ora.ory of Crops Genetics a.d Improvement Crop Research InstituteGuangdong Academy of Agricultural SciencesGuangzhou 510640China Gra.ua.e School of Bioa.ricultura. Sciences Nagoya UniversityChikusaNagoya 464-8601Japan interna.iona. Pota.o Center(CIP) LimaPeru Ca. Center for Excellence of Molecula. Pla.t Sciences Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200233China Ma.-Pla.ck-Institut fur Molekula.e Pfla.zenphysiologie Am Muhlenberg 114476 Potsdam-GolmGermany

The hexa.loid sweetpota.o(lpomoea.ba.a.a.)is one of the most importa.t root crops ***,its genetic origin rema.ns controversia.,a.d its domestica.ion history rema.ns *** this study,we used a.ra.ge of genetic evidence a.d a.newly developed ha.lotype-ba.ed phylogenetic a.a.ysis to identify two proba.le progenitors of *** diploid progenitor wa. likely closely rela.ed to lpomoea.a.-qua.oriensis a.d contributed the B,subgenome,IbT-DNa.,a.d the linea.e 1 type of chloropla.t genome to *** tetra.loid progenitor of sweetpota.o wa. most likely *** 4x,which dona.ed the B2 subgenome,IbT-DNa.,a.d the linea.e 2 type of chloropla.t *** most likely origina.ed from reciproca. crosses between the diploid a.d tetra.loid progenitors,followed by a.subsequent whole-genome *** a.dition,we detected bia.ed gene excha.ges between the subgenomes;the ra.e of B,to B2 subgenome conversions wa. nea.ly three times higher tha. tha. of B2 to B subgenome *** a.a.yses revea.ed tha. genes involved in stora.e root forma.ion,ma.ntena.ce of genome sta.il-ity,biotic resista.ce,suga. tra.sport,a.d pota.sium upta.e were selected during the specia.ion a.d domestica.ion of *** study sheds light on the evolution of sweetpota.o a.d pa.es the wa. forimprovementofthiscrop.

关键词： sweetpota.o origin gene conversion domestica.ion IbT-DNA HPA