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Functional traits of tree species with phylogenetic signal co-vary with environmental niches in two large forest dynamics plots

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Journal of Plant Ecology 2014年第2期7卷 115-125页

作者： Jie Yang Xiuqin Ci Mengmeng Lu Guocheng Zhang min cao Jie Li Luxiang Lin Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesNo.88 Xuefu RoadKunmingYunnan 650223China University of Chinese Academy of Sciences No.19A Yuquan RoadBeijing 100049China

Aims While using phylogenetic and functional approaches to test the mechanisms of community assembly,functional traits often act as the proxy of ***,there is little detailed knowledge regarding the correlation between functional traits of tree species and their niches in local *** suggest that the co-varying correlation between functional traits and niches should be the premise for using phylogenetic and functional approaches to test mechanisms of community *** functional traits,phylogenetic and environmental data,this study aims to answer the questions:(i)within local communities,do functional traits of co-occurring species covary with their environmental niches at the species level?and(ii)what is the key ecological process underlying community assembly in Xishuangbanna and Ailaoshan forest dynamic plots(FDPs)?Methods We measured seven functional traits of 229 and 36 common species in Xishuangbanna and Ailaoshan FDPs in tropical and subtropical China,*** also quantified the environmental niches for these species based on conditional *** then analyzed the correlations between functional traits and environmental niches using phylogenetic independent *** examining phylogenetic signals of functional traits using Pagel’sλ,we quantified the phylogenetic and functional dispersion along environmental gradients within local tree *** Findings For target species,functional traits do co-vary with environmental niches at the species level in both of the FDPs,supporting that functional traits can be used as a proxy for local-scale environmental *** traits show significant phylogenetic signals in both of the *** found that the phylogenetic and functional dispersion were significantly clustered along topographical gradients in the Ailaoshan FDP but overdispersion in the Xishuangbanna *** patterns of phylogenetic and functional dispersion suggest that environmental filterin

关键词： forest dynamics plot local scale phylogenetic independent contrast phylogenetic signal phylogenetic dispersion functional dispersion

Laccase-functionalized magnetic framework composite enabled chlorophenols degradation,a potential remediation for fungicides residues in leather

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Journal of Leather Science and Engineering 2022年第1期4卷 299-309页

作者： min cao Jie Yu Xing Zhang Yamei Lin He Huang School of Food Science and Pharmaceutical Engineering Nanjing Normal UniversityNanjing 210023People’s Republic of China Schoolof Pharmaceutical Sciences Nanjing Tech UniversityNanjing 210009People’s Republic of China

Chlorophenols,used as the fungicides in leather,are strictly limited in leather *** this work,a metal-organic framework material,zeolitic metal azolate framework-7(MAF-7),was first used to encapsulate laccase(Lac)to prepare MAF-7/Lac bio-composites with 98.5%immobilization ***,Lac/MNP@MOM was formed by introducing the magnetic nanoparticles(MNPs)into the Lac@***-7 with better hydrophilicity and stronger pH buffering ability,exhibits good compatibility with laccase,which can reserve the activity of laccase after ***,the porous structure of MAF-7 is favorable for the sufficient contact between laccase and ***/MNP@MOM exhibited excellent activity when exposed to high temperature,extreme pH,and organic solvents,which also simplified complex recovery ***,the degradation rate of 2,4-dichlorophenol(2,4-DCP)could reach as high as 97%within 24 h by immobilized laccase,and after nine consecutive cycles of operation,enzyme activity could remain over 80%,which gives it the potential for practical applications.

关键词： Zeolitic metal azolate framework-7(MAF-7) Laccase Magnetic nanoparticles(MNPs) Lac/MNP@MOM 2,4-dichlorophenol(2,4-DCP)

Comprehensive prognostic and immune analysis of sterol Oacyltransferase 1 in patients with hepatocellular carcinoma

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World Journal of Hepatology 2024年第3期16卷 439-451页

作者： Chang-Jiao Gan Yue Zheng Bin Yang Li-min cao Development Research Department National Medical Products Administration Institute of Executive DevelopmentBeijing 100071China School of Medicine Nankai University Affiliated Third Center HospitalTianjin 300070China Tianjin Institute of Hepatobiliary Disease The Third Central Hospital of TianjinTianjin 300170China Department of Science and Technology Tianjin Third Central HospitalTianjin 300170China

BACKGROUND Sterol O-acyltransferase 1(SOAT1)is an important target in the diagnosis and treatment of liver ***,the prognostic value of SOAT1 in patients with hepatocellular carcinoma(HCC)is still not *** To investigate the correlation of SOAT1 expression with HCC,using RNA-seq and gene expression data of The Cancer Genome Atlas(TCGA)-liver hepatocellular carcinoma(LIHC)and *** The correlation between SOAT1 expression and HCC was *** hazard regression models were conducted to investigate the prognostic value of SOAT1 in *** survival and disease-specific survival were explored based on TCGA-LIHC *** processes and functional pathways mediated by SOAT1 were characterized by gene ontology(GO)analysis and the Kyoto Encyclopedia of Genes and Genomes(KEGG)analysis of differentially expressed *** addition,the protein-protein interaction network and co-expression analyses of SOAT1 in HCC were performed to better understand the regulatory mechanisms of SOAT1 in this *** SOAT1 and SOAT2 were highly expressed in unpaired samples,while only SOAT1 was highly expressed in paired *** area under the receiver operating characteristic curve of SOAT1 expression in tumor samples from LIHC patients compared with para-carcinoma tissues was 0.748,while the area under the curve of SOAT1 expression in tumor samples from LIHC patients compared with GTEx was *** with higher SOAT1 expression had lower survival *** from GO/KEGG and gene set enrichment analyses suggested that the PI3K/AKT signaling pathway,the IL-18 signaling pathway,the calcium signaling pathway,secreted factors,the Wnt signaling pathway,the Jak/STAT signaling pathway,the MAPK family signaling pathway,and cell–cell communication were involved in such ***1 expression was positively associated with the abundance of macrophages,Th2 cells,T helper cells,CD56bright natural killer cells,and Th1 cells,and negatively

关键词： Sterol O-acyltransferase 1 Hepatocellular carcinoma Prognostic Immune

Corrosion behavior of Ti60 alloy under continuous NaCl solution spraying at 600℃

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Journal of Materials Science & Technology 2022年第29期124卷 86-101页

作者： Rui Li Li Liu Yu Cui Rui Liu Lei Fan min cao Zhongfen Yu Zhiyong Chen Qingjiang Wang Fuhui Wang Shenyang National Laboratory for Materials Science Northeastern UniversityShenyang 110819China Shi-changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials CNPC Tubular Goods Research InstituteXi’an 710077China China ENFI Engineering Corp ENFI R&D Institute.Beijing 100038China

The corrosion behavior of Ti60 alloy was investigated under continuous NaCl solution spraying at 600℃.Results indicate that the corrosion rate of the Ti60 alloy is lower than that obtained with the solid NaCl deposit film in HO+*** outer corrosion products are compact layers mainly containing NaTiOand nanocrystalline *** inner layer is mainly composed of TiO,Ti O and *** has a lamellar structure,and TiO has a strip-shaped structure.A mixed corrosion mechanism including classic oxidation and active oxidation occurred under NaCl solution spraying environment:the first stage was controlled by the classic oxidation mechanism with the promotion by the active oxidation following parabolic curves,and the second stage was controlled by the active oxidation mechanism following a linear rise in the mass gain *** mixed corrosion mechanism between classic oxidation and active oxidation produced a relatively dense Ti oxides scale,which decreased the corrosion rate.

关键词： Titanium alloy High temperature corrosion Continuous NaCl solution spraying

Synthesis and Crystal Structure of a New Noble Metalcontaining Supramolecular Self-assembly with Decamethylcucurbit[5]uril

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Chinese Journal of Structural Chemistry 2020年第3期39卷 535-542,379页

作者： CHEN Ru-Ru YANG Wei-Guang cao min-Na LI Hong-Fang College of Chemistry Fuzhou UniversityFuzhou 350002China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China

A new supramolecular self-assembly [Li(H2 O)2]2[(H2 O@Me10 CB[5])][PtC l6]·7 H2 O(1, Me10 CB[5] = decamethylcucurbit[5]uril), has been successfully constructed with Me10 CB[5] and [PtCl6]^(2-) anion in the presence of lithium cation(Li+). Single-crystal X-ray diffraction study reveals that compound 1 crystallizes in monoclinic space group P21/n with a = 11.1681(18), b = 28.5425(4), c = 18.9342(3) ?, β = 99.0143(15)°, V = 5961.02(16) ?~3, Z = 4, F(000) = 3224, μ = 2.714 mm^(-1), R = 0.0470 and wR = 0.1076(I > 2σ(I)). In the supramolecular self-assembly, two of the portal carbonyl oxygen atoms of Me10 CB[5] are coordinated to Li+ cation, yielding a "half-open" molecular capsule. Then adjacent molecular capsules are connected with each other through hydrogen-bonding to form a one-dimensional(1 D) supramolecular chain structure. The [PtCl6]^(2-) anions are fixed on one side of the 1 D supramolecular chain through supramolecular interactions. The thermal stability, electronic valence and morphology of compound 1 are also investigated.

关键词： decamethylcucurbituril noble metal supramolecular self-assembly crystal structure

Blue-emitting Sr_(1-x)Ca_(x)Lu_(2)O_(4):Ce^(3+) phosphors for high CRI white LEDs

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Journal of Rare Earths 2021年第6期39卷 627-633,I0001页

作者： Yipeng Zhou Yunsheng Hu Ronghui Liu Yuanhong Liu Weidong Zhuang min cao Tongyu Gao Junhang Tian Yanfeng Li Guantong Chen National Engineering Research Center for Rare Earth Materials GRINM Group Co.Ltd.Beijing100088China CRIREM Advanced Materials Co. Ltd.Beijing 100088China General Research Institute for Nonferrous Metals Beijing 100088China

A broadband blue-emitting Sr_(1-x)Ca_(x)Lu_(2)O_(4):Ce^(3+)(x=0-0.2) phospho rs were synthesized,which can be used for near-UV pumped white light-emitting diodes(w-LEDs).The crystal structures,photoluminescence pro perties,external quantum efficiency,the rmal stability and application perfo rmance of Sr_(1-x)Ca_(x)Lu_(2)O_(4):Ce^(3+),by partially substituting Sr^(2+) with Ca^(2+)(x=0-0.2),were studied by various analytical *** the Ca/Sr ratio of Sr_(1-x)Ca_(x)Lu_(2)O_(4):Ce^(3+) gradually increases,the emission peak of Sr_(1-x)Ca_(x)Lu_(2)O_(4):Ce^(3+) red-shiftes from 459 to 465 nm,corrected external quantum efficiency increases from 31.8% to 42.9%,and the thermal stability is also *** mechanism of the changes of the photoluminescence emission and excitation spectra,external quantum efficiency and thermal stability properties was also investigated in *** addition,a w-LED was fabricated by using SrLu_(2)O_(4):Ce^(3+)(blue),β-sialon:Eu^(2+)(green) and(Sr,Ca)AlSiN_(3):Eu^(2+)(red) phosphors combined with a 405 nm near-UV LED chip,and its color rendering index(CRI) reaches *** Sr_(0.8)Ca_(0.2)Lu_(2)O_(4):Ce^(3+) is applied as blue phosphor to substitute SrLu_(2)O_(4):Ce^(3+),the obtained w-LED devices have high luminous efficiency,and CRI greater than *** re sults show that the Sr_(1-x)Ca_(x)Lu_(2)O_(4):Ce^(3+) can be potential blue phosphors for n-UV pumped high CRI w-LEDs application.

关键词： n-UV pumped w-LED Blue phosphor Red shift Excellent thermal stability High color rendering index Rare earths

Well-dispersed porous Fe–N–C catalyst towards the high-selective and high-efficiency conversion of CO_(2) to CO

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Chinese Chemical Letters 2023年第1期34卷 435-439页

作者： Qiu-Hui Zheng Chuang Chen Si-min cao Meng-Ting Peng Bao-Xia Dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China

In this study,through direct pyrolysis of a nitrogen-rich metal-organic framework of Fe-BTT at different temperatures and followed by acid treatment,we prepared a series of Fe–N–CT(T=800–1000°C)composite catalysts with uniform cubic morphology and homogeneously distributed active *** leaching leads to the removal of excess Fe NPs and the exposure of more pyridinic N and porphyrin-like Fe–Nx sites and creates a higher specific surface *** and electrochemical performance test results showed that Fe–N–C900catalyst exhibited the highest selectivity for CO product at–1.2 V ***/AgCl,with 496 m V of overpotential and 86.8%of Faraday efficiency,as well as excellent long-term stability,due to the good inheritance from rich-N Fe–BTT precursor.

关键词： Electrochemical CO_(2)reduction Fe-N-C Metal-organic framework High-temperature pyrolysis Acid leaching

Species-specific phenological responses to long-term nitrogen fertilization in an alpine meadow

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Journal of Plant Ecology 2017年第2期10卷 301-309页

作者： Tan-Feng Yin Li-Li Zheng Guang-min cao ming-Hua Song Fei-Hai Yu Key Laboratory of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesA11Datun RoadChaoyang DistrictBeijing 100101China School of Nature Conservation Beijing Forestry University35 East Qinghua RoadHaidian DistrictBeijing 100083China University of Chinese Academy of Sciences No.19 Yuquan RoadBeijing 100039China Northwest Institute of Plateau Biology Chinese Academy of Sciences59 Xiguan DajieXining 810008China

Aims Long-term nitrogen(N)fertilization has profound impacts on com-munity structure and ecosystem function,but little is known about its effects on plant ***,no published study has examined effects of N chemical forms on plant *** in an alpine meadow on the Tibetan Plateau,we monitored reproductive phenology of six common plant species after 8 years of fertilization with different N chemical forms(addition of 7.5 g N m^(−2) yr^(−1) in the forms of ammonium,nitrate and ammonium nitrate),with no N addition as the *** Findings Eight years of N fertilization affected plant reproductive phenology,and such effects depended on the species,N form and phenological *** with ammonium generally delayed,advanced or did not change flowering and fruiting phases of the alpine ***,fertilization with ammonium affected the temporal dispersion of reproductive phenology among the six species,espe-cially among the late-flowering *** could reduce the overlap of flowering and fruiting and increase phenological *** with nitrate only delayed the senescence phase of Elymus nutans,and fertilization with ammonium nitrate did not affect reproductive phenology of the six alpine plants.N fertilization with any form increased the overlap in senescence among the six *** conclude that long-term N fertilization can cause shifts in plant phenology and such effects depend on N chemical *** results also suggest that phenological comple-mentarity could be a mechanism underlying resource partitioning and thus species coexistence in the face of changing N availability with different chemical forms.

关键词： reproductive phenology fertilization nitrogen forms temporal dispersion in phenology alpine meadow

Coming to grips with the landmine menace

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中国周刊 2004年第5期 32-33页

作者： cao min

Asea of sunflowers lay beneath a blood-red sun, the golden yellow blossoms exuding warmthagainst the scarlet background. Early summer sunlight, beautiful and brilliant, baked the border area in Southwest China

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