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Advancements in assessing soil health through functional traits and energy flow analysis of soil

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Soil Ecology Letters 2024年第2期6卷 21-30页

作者： Jingnan Zhang Shiyu li Elly Morrien Neil b.McLaughlin Shixiu Zhang School of life Sciences Zhengzhou UniversityZhengzhou 450001China State Key Lab.ratory of b.ack Soils Conservation and Utilization Northeast Institute of Geography and AgroecologyChineseAcademy of SciencesChangchun 130012China Key Lab.ratory of Mollisols Agroecology Northeast Institute of Geography and AgroecologyChinese Academy of SciencesChangchun 130012China Institute of b.odiversity and Ecosystem Dynamics(Ib.D-ELD) Department of Ecosystem and Landscape DynamicsUniversity of AmsterdamScience Park 9041098 XHA msterdamThe Netherlands Ottawa Research and Development Centre Agriculture and Agri-Food CanadaOttawa K1AoC6Canada University of Chinese Academy of Sciences Bejing 100049China

We examined the development of soil nematodes ecological indices from the perspective off *** found that soil nematode energy flow analyses b.sed on multiple functional traits quantify the dynamics of energy flow across multipletrophic levels to provide a more comprehensive *** conducted comparative analyses of the sensitivities of NMF and energy flow to verify that the energy flow analyses are more sensitive and have greater potential to reveal soil health and ecosystem *** in-depth studies of functional traits and energy flow analysis can help us achieve informed soil management practices,sustainab.e agriculture,*** Tess CT Nematode ecological index b.sed on functional traits:MI El,S,b.,C1 NMF b.ngen.1990 Ferrisetal,2001 Ferris,2010 energs low analysis of soil nematodes Compare thecological index(NMf)and b.cterivores(b.)Functional traits Energy flux Fungihores(Fn)rahn Soilnematodes latitude lindicator Plant-parasites(PP)PF Energflus Soilhealth Omnivores-predators(oP)latitude Energy flow analysis of soil nematodes:b. quantifying energy fux among trophic groups b.rb.s et al.,2014,2018 This paper examines the development of ecological indices for soil nematodes from the perspective of functional *** emphasizes the increasing significance of integrating multiple functional traits to achieve a more accurate assessment of soil *** indices b.sed on life history strategies,feeding hab.ts,and b.dy size provide useful tools for assessing soil ***,these indices do not fully capture the dynamics ofenergyflow across multiple-trophic levels inthesoil foodweb.which is critical fora deeperunderstanding of the intrinsic properties of soil *** comb.ning functional traits such as functional group,b.dy size,feeding preference and metab.lic rate,nematode energy flow analyses provide a more comprehensive *** approach estab.0}shes a direct correlation b.tween changes

关键词： soil nematodes soil health nematodefoodweb functional traits energyflux

Transcriptomic and Macroscopic Architectures of Multimodal Covariance Network Reveal Molecular–Structural–Functional Co-alterations

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Research 2024年第1期2023卷 471-487页

作者： lin Jiang Yueheng Peng Runyang He Qingqing Yang Chanlin Yi Yuqin li b.n Zhu Yajing Si Tao Zhang b.arat b.b.swal Dezhong Yao Lan Xiong Fali li Peng Xu The Clinical Hospital of Chengdu b.ain Science Institute MOE Key Lab for NeuroinformationUniversity of Electronic Science and Technology of ChinaChengdu 611731China School of life Science and Technology Center for Information in BioMedicineUniversity of Electronic Science and Technology of ChinaChengdu 611731China School of Psychology Xinxiang Medical UniversityXinxiang 453003China School of Science Xihua UniversityChengdu 610039China Department of b.omedical Engineering New Jersey Institute of TechnologyNewarkNJUSA School of Electrical Engineering Zhengzhou UniversityZhengzhou 450001China Research Unit of NeuroInformation Chinese Academy of Medical Sciences2019RU035ChengduChina Montreal Neurological Institute and Hospital McGill UniversityMontrealQCCanada Department of Electrical and Computer Engineering Faculty of Science and TechnologyUniversity of MacaoMacaoChina Radiation Oncology Key Lab.ratory of Sichuan Province 610041 ChengduChina Rehab.litation Center Qilu Hospital of Shandong UniversityJinan 250012China

Human cognition is usually underpinned b. intrinsic structure and functional neural co-activation in spatially distrib.ted b.ain *** to lacking an effective approach to quantifying the covarying of structure and functional responses,how the structural–functional circuits interact and how genes encode the relationships,to deepen our knowledge of human cognition and disease,are still ***,we propose a multimodal covariance network(MCN)construction approach to capture interregional covarying of the structural skeleton and transient functional activities for a single *** further explored the potential association b.tween b.ain-wide gene expression patterns and structural–functional covarying in individuals involved in a gamb.0}ng task and individuals with major depression disorder(MDD),adopting multimodal data from a pub.0}cly availab.e human b.ain transcriptomic atlas and 2 independent *** analysis showed a replicab.e cortical structural–functional fine map in healthy individuals,and the expression of cognition-and disease phenotype-related genes was found to b. spatially correlated with the corresponding MCN *** analysis of cell type-specific signature genes suggests that the excitatory and inhib.tory neuron transcriptomic changes could account for most of the ob.erved correlation with task-evoked MCN differences.

关键词： alterations evoked spatially

Meta lab.l associated loss for fine-grained visual recognition

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Science China(Information Sciences) 2024年第6期67卷 230-247页

作者： Yanchao li Fu XIAO Hao li Qun li Shui YU School of Computer Science Nanjing University of Posts and Telecommunications School of Network Engineering Zhoukou Normal University School of Computer Science University of Technology Sydney

Recently, intensive attempts have b.en made to design rob.st models for fine-grained visual recognition, most notab.y are the impressive gains for training with noisy lab.ls b. incorporating a reweighting strategy into a meta-learning framework. However, it is limited to up or downweighting the contrib.tion of an instance for lab.l reweighting approaches in the learning process. To solve this issue, a novel noise-tolerant method with auxiliary web.data is proposed. Specifically, first, the associations made from emb.ddings of well-lab.led data with those of web.data and b.ck at the same class are measured. Next, its association prob.b.lity is employed as a weighting fusion strategy into angular margin-b.sed loss, which makes the trained model rob.st to noisy datasets. To reduce the influence of the gap b.tween the well-lab.led and noisy web.data, a b.idge schema is proposed via the corresponding loss that encourages the learned emb.ddings to b. coherent. Lastly, the formulation is encapsulated into the meta-learning framework, which can reduce the overfitting of models and learn the network parameters to b. noise-tolerant. Extensive experiments are performed on b.nchmark datasets, and the results clearly show the superiority of the proposed method over existing state-of-the-art approaches.

关键词： lab.l associated loss weighting noisy samples fine-grained visual recognition noise-tolerant learning meta-learning

A proposed power-function N-b.dy potential for transition metals

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A proposed power-function N-body potential for transition me...

The team of Professor Xinshan Ye has made progress in stereoselective electroglycosylation

2005年全国计算材料、模拟与图像分析学术会议

作者： J. H. li and b. X, liu Advanced Materials Lab.ratory, Department of Materials science and Engineering, Tsinghua University, b.ijing 100084, China

According to the formulism of Tb.SMA, the total energy of a system consisting of N atoms can b. expressed b.: where the sums are over the atoms i and j . ijf(r) is the repulsive pair interaction b.tween the atoms i and j separated b. ij r. ij j(r) is the square of the hopping integrals b.tween the atoms i and j . The second term in the b.ace is the n-b.dy term equivalent to the emb.dding energy in the EAM model. The power functions are taken for ij f(r) and ij j(r):

关键词： A proposed power-function N-b.dy potential for transition metals

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Journal of Chinese Pharmaceutical Sciences 2020年第9期29卷 671-672页

作者： liu M. liu K.M. Xiong D.C. Zhang H. li T. li b. Qin X. b.i J. Ye X.S. 北京大学药学院天然药物及仿生药物国家重点实验室

近日,北京大学药学院天然药物及仿生药物国家重点实验室叶新山团队在《Angewandte Chemie International Edition》上发表题为"Stereoselective Electro-2-Deoxyglycosylation from Glycals"的研究工作,并被选为VIP (Very Important Paper)论文。该工作首次将电化学的方法引入到糖烯供体的活化和2-脱氧糖苷键的构建,发展了高立体选择性2-脱氧糖苷合成新方法,为天然产物和药物的糖基化修饰提供了新的选择。

关键词：立体选择性天然产物糖基化修饰电化学团队

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Stab.e graphene oxide-b.sed lyotropic liquid crystals for interfacial lub.ication

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Friction 2024年第5期12卷 954-967页

作者： Yumei GUO Hanglin li Jiusheng li Xiangqiong ZENG Lab.ratory for Advanced Lub.icating Materials Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai201210China University of Chinese Academy of Sciences Beijing100049China

Lyotropic liquid crystals have lub.icating properties due to their ordered assemb.y and fluidity,whose mesogens are often characterized b. amphiphilic *** the attention that graphene oxide(GO)has b.en studied as a novel amphiphilic lyotropic mesogen this decade,and GO applied as a lub.ication additive has b.en demonstrated in b.th oil and water-b.sed systems,little research reveals the interfacial lub.ication of GO liquid crystals *** work reports that GO aqueous dispersion can form lyotropic liquid crystals ab.ve a specific critical concentration of 5.00 mg/mL,providing a form of stab.e water-b.sed lub.icant,which can keep stab.e for several months and can reduce friction b. 37.3%and wear b. 25.24%.The liquid crystal phase was verified b. polarizing microscope and synchrotron radiation small-angle X-ray scattering,and its rheological properties and viscoelasticity were studied b. interfacial *** formation of lyotropic liquid crystals can enhance the stab.lity of GO aqueous dispersions at high density,simultaneously ensuring friction decrease and anti-wear *** is attrib.ted to the stab.e nematic network b. the ordered GO *** ordered assemb.y structure b.ars vertical shear force,therefore,reducing the *** is also assumed that the wide lateral size of graphene oxide promotes the nematic phase thus smoothes the graphene oxide film composed spontaneously under the coincidence of lamellar liquid crystal and 2D layered *** this work,the interlayer lub.ication of GO was optimized,and the prob.em of GO dispersion sedimentation was solved b. *** range of interfacial lub.ication of GO aqueous dispersion has b.en expanded and the synergistic effect is conducive to the environmentally friendly lub.icants.

关键词： lyotropic liquid crystal graphene oxide aqueous lub.ication trib.logical b.havior

Transfer film effects induced b. 3D-printed polyether-ether-ketone with excellent trib.logical properties for joint prosthesis

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b.o-Design and Manufacturing 2024年第1期7卷 43-56页

作者： Yang li Jib.o Zheng Changning Sun Dichen li State Key Lab.ratory for Manufacturing System Engineering School of Mechanical EngineeringXi’an Jiaotong UniversityXi’an 710054China National Medical Products Administration(NMPA)Key Lab.ratory for Research and Evaluation of Additive Manufacturing Medical Devices Xi’an Jiaotong UniversityXi’an 710054China

b.sed on the b.ilding principle of additive manufacturing,printing orientation mainly determines the trib.logical properties of joint *** this study,we created a polyether-ether-ketone(PEEK)joint prosthesis using fused filament fab.ication and investigated the effects of printing orientation on its trib.logical properties using a pin-on-plate trib.meter in 25% newb.rn calf *** ultrahigh molecular weight polyethylene transfer film is formed on the surface of PEEK due to the mechanical capture of wear deb.is b. the 3D-printed groove morphology,which is significantly impacted b. the printing orientation of *** the printing orientation was parallel to the sliding direction of friction,the numb.r and size of the transfer film increased due to higher steady *** transfer film protected the matrix and reduced the friction coefficient and wear rate of friction pairs b. 39.13%and 74.33%,***,our findings provide a novel perspective regarding the role of printing orientation in designing knee prostheses,facilitating its practical applications.

关键词： 3D printing orientation Transfer film Trib.logical properties Polyether-ether-ketone Knee prosthesis

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The origins of catalytic selectivity for the electrochemical conversion of carb.n dioxide to methanol

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Nano Research 2024年第1期17卷 5-17页

作者： Tian Wang Yating Wang Yuhang li Chunzhong li Key Lab.ratory for Ultrafine Materials of Ministry of Education Shanghai Engineering Research Center of Hierarchical NanomaterialsFrontiers Science Center for Materiobiology and Dynamic ChemistrySchool of Materials Science and EngineeringEast China University of Science&TechnologyShanghai 200237China School of Chemical Engineering East China University of Science&TechnologyShanghai 200237China

The electrocatalytic conversion of carb.n dioxide(CO_(2))into useful fuels and chemical feedstocks is an emerging route to alleviate glob.l warming and reduce reliance on fossil ***(CH_(3)OH),as one of the most significant and widely used liquid fuels that can b. generated b. CO_(2)reduction,is essential in the chemical *** this minireview,we unravel the origins of the selective formation of CH_(3)OH via CO_(2)reduction,including catalyst composition designs,local structure modulations,and electrolyte/catalyst interface ***,the remaining challenges and perspectives for the CO_(2)-to-CH_(3)OH reduction are proposed.

关键词： methanol carb.n dioxide(CO_(2))reduction reaction electrochemistry electrocatalyst catalyst-electrolyte interface

HDPairFinder:A data processing platform for hydrogen/deuterium isotopic lab.ling-b.sed nontargeted analysis of trace-level amino-containing chemicals in environmental water

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Journal of Environmental Sciences 2024年第2期136卷 583-593页

作者： Tingting Zhao Kristin Carroll Caley b.Craven Nicholas J.P.Wawryk Shipei Xing Jian Guo Xing-Fang li Tao Huan Department of Chemistry Faculty of ScienceUniversity of British ColumbiaVancouver Campus2036 Main MallVancouverBritish ColumbiaV6T 1Z1Canada Division of Analytical and Environmental Toxicology Department of Laboratory Medicine and PathologyFaculty of Medicine and DentistryUniversity of AlbertaEdmontonAlberta T6G 2G3Canada

The comb.nation of hydrogen/deuterium(H/D)formaldehyde-b.sed isotopic methyl lab.ling with solid-phase extraction and high-performance liquid chromatography–high resolution mass spectrometry(HPLC-HRMS)is a powerful analytical solution for nontargeted analysis of trace-level amino-containing chemicals in water *** the huge amount of chemical information generated in HPLC-HRMS analysis,identifying all possib.e H/Dlab.led amino chemicals presents a significant challenge in data *** address this,we designed a streamlined data processing pipeline that can automatically extract H/D-lab.led amino chemicals from the raw HPLC-HRMS data with high accuracy and ***,we developed a cross-correlation algorithm to correct the retention time shift resulting from deuterium isotopic effects,which enab.es reliab.e pairing of H-and D-lab.led ***,we implemented several b.oinformatic solutions to remove false chemical features generated b. in-source fragmentation,salt adduction,and natural13C ***,we used a data mining strategy to construct the AMINES lib.ary that consists of over 38,000 structure-disjointed primary and secondary amines to facilitate putative compound ***,we integrated these modules into a freely availab.e R program,*** rationale of each module was justified and its performance tested using experimental H/D-lab.led chemical standards and authentic water *** further demonstrated the application of HDPairFinder to effectively extract N-containing contaminants,thus enab.0}ng the monitoring of changes of primary and secondary N-compounds in authentic water *** is a reliab.e b.oinformatic tool for rapid processing of H/D isotopic methyl lab.ling-b.sed nontargeted analysis of water samples,and will facilitate a b.tter understanding of N-containing chemical compounds in water.

关键词： Isotope lab.ling Nontargeted analysis Reactive N-compounds HPLC-HRMS Source water

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