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Nitrogen rhizodeposition from corn and soybean,and its contribution to the subsequent wheat crops

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Journal of Integrative Agriculture 2024年第7期23卷 2446-2457页

作者： Sainan Geng Lantao li Yuhong Miao Yinjie zhang Xiaona Yu Duo zhang Qirui Yang Xiao zhang Yilun wang College of Resources and Environment Henan Agricultural UniversityZhengzhou 450002China

Nitrogen(N)is a key factor in the positive response of cereal crops that follow leguminous crops when compared to gramineous crops in rotations,with the nonrecyclable rhizosphere-derived N playing an important ***,quantitative assessments of differences in the N derived from rhizodeposition(NdfR)between legumes and gramineous crops are lacking,and comparative studies on their contributions to the subsequent cereals are *** this study,we conducted a meta-analysis of NdfR from leguminous and gramineous crops based on 34 observations published *** addition,pot experiments were conducted to study the differences in the NdfR amounts,distributions and subsequent effects of two major wheat(Triticum aestivum L.)-preceding crops,corn(Zea mays L.)and soybean(Glycine max L.),by the cotton wick-labelling method in the main wheat-producing areas of *** meta-analysis results showed that the NdfR of legumes was significantly greater by 138.93%compared to gramineous *** our pot experiment,the NdfR values from corn and soybean were 502.32 and 944.12 mg/pot,respectively,and soybean was also significantly higher than corn,accounting for 76.91 and 84.15%of the total belowground nitrogen of the plants,***,in different soil particle sizes,NdfR was mainly enriched in the large macro-aggregates(>2 mm),followed by the small macro-aggregates(2–0.25 mm).The amount and proportion of NdfR in the macro-aggregates(>0.25 mm)of soybean were 3.48 and 1.66 times higher than those of corn,respectively,indicating the high utilization potential of soybean *** the N accumulation of subsequent wheat,the contribution of soybean NdfR to wheat was approximately 3 times that of corn,accounting for 8.37 and 4.04%of the total N uptake of wheat,*** conclusion,soybean NdfR is superior to corn in terms of the quantity and distribution ratio of soil *** future field production,legume NdfR should be included in the nitrogen p

关键词： crop rotation nitrogen rhizodeposition meta-analysis soil aggregates nitrogen transfer

In situ growth of NiSe_(2) nanocrystalline array on graphene for efficient hydrogen evolution reaction

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Frontiers in Energy 2022年第4期16卷 595-600页

作者： Shuai JI Changgan LAI Huan ZHOU Helin wang ling MA Cong wang Keying zhang Fajun li lixu LEI School of Chemistry and Chemical Engineering Southeast UniversityNanjing 211189China School of Chemistry and Chemical Engineering Suzhou UniversitySuzhou 234000China Key Laboratory of Spin Electron and Nanomaterials of Anhui Higher Education Institutes Suzhou UniversitySuzhou 234000China

Nickel selenide electrocatalysts for hydrogen evolution reaction(HER)with a high efficiency and a lowcost have a significant potential in the development of water ***,the inferiority of the high overpotential and poor stability restricts their practical ***,a composite nanostructure consists of ultrasmall NiSe_(2) nanocrystals embedded on graphene by microwave reaction is *** prepared NiSe_(2)/reduced graphite oxide(rGO)electrocatalyst exhibited a high HER activity with an overpotential of 158 mV at a current density of 10 mA/cm^(2) and a corresponding moderate Tafel slope of 56 mV/dec in alkaline *** addition,a high retention of electrochemical properties(approximately 100%)was demonstrated with an unchangeable microstructure after 100 h of continuous operation.

关键词： nickel selenide carbon materials nanoparticles hydrogen evolution reaction(HER) microwave reaction

Sustained release of exosomes loaded into polydopamine-modified chitin conduits promotes peripheral nerve regeneration in rats

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Neural Regeneration Research 2022年第9期17卷 2050-2057页

作者： Ci li Song-Yang liu Meng zhang Wei Pi Bo wang Qi-Cheng li Chang-Feng Lu Pei-Xun zhang Department of Orthopedics and Trauma Peking University People’s HospitalBeijingChina Key Laboratory of Trauma and Neural Regeneration Ministry of EducationBeijingChina National Center for Trauma Medicine BeijingChina Department of Orthopedics Beijing Jishuitan HospitalBeijingChina

Exosomes derived from mesenchymal stem cells are of therapeutic interest because of their important role in intracellular communication and biological *** the basis of previously studied nerve conduits,we designed a polydopamine-modified chitin conduit loaded with mesenchymal stem cell-derived exosomes that release the exosomes in a sustained and stable *** vitro experiments revealed that rat mesenchymal stem cell-derived exosomes enhanced Schwann cell proliferation and secretion of neurotrophic and growth factors,increased the expression of Jun and Sox2 genes,decreased the expression of Mbp and Krox20 genes in Schwann cells,and reprogrammed Schwann cells to a repair ***,mesenchymal stem cell-derived exosomes promoted neurite growth of dorsal root *** polydopamine-modified chitin conduits loaded with mesenchymal stem cell-derived exosomes were used to bridge 2 mm rat sciatic nerve *** release of exosomes greatly accelerated nerve healing and improved nerve *** findings confirm that sustained release of mesenchymal stem cell-derived exosomes loaded into polydopamine-modified chitin conduits promotes the functional recovery of injured peripheral nerves.

关键词： exosome mesenchymal stem cells modification strategy nerve conduits peripheral nerve injury peripheral nerve regeneration polydopamine reprogramming state Schwann cells sustained release

Ultrasound features of congenital cytomegalovirus infection in the first trimester:A case report

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World Journal of Clinical Cases 2025年第5期13卷 30-35页

作者： Xiao-li Chen li-Qiang zhang li-li Bai Department of Ultrasound Wenzhou Central HospitalWenzhou 325000Zhejiang ProvinceChina

BACKGROUND Congenital cytomegalovirus(CMV)infection represents a significant public health concern as the most prevalent viral infection in newborns,potentially leading to severe neurological and developmental *** majority of cases are asymptomatic and remain undetected during pregnancy due to the absence of effective screening *** SUMMARY A 27-year-old primigravida presented for early pregnancy ultrasound,which revealed an atypical finding:A normal anechoic thalamus appearing hyperechoic on the mid-sagittal view of the fetal *** ultrasound examinations during mid and late gestation demonstrated classic intracranial features sug-gestive of congenital CMV *** karyotyping and microarray analysis of the fetus yielded no significant *** compre-hensive prenatal counseling regarding potential adverse fetal outcomes,the patient elected to continue her *** ultimately underwent cesarean delivery at 42 weeks gestation at another facility,resulting in the birth of a female *** five months of age,the infant presented with epilepsy and significant growth and developmental *** Congenital CMV infection occurs during the first trimester may manifest as hyperechoic thalamus which can be revealed by ultrasound in the mid-saggital view of the fetal *** research should investigate the correlation between echogenic thalamus and developmental outcomes,as well as explore early sc-reening techniques for suspected congenital CMV infection cases.

关键词： Prenatal diagnosis Congenital infection Cytomegalovirus Fetal ultrasound Case report

CDK4/6 inhibition blocks cancer metastasis through a USP51-ZEB1-dependent deubiquitination mechanism

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Signal Transduction and Targeted Therapy 2020年第1期5卷 2214-2226页

作者： Zhen zhang Jianjun li Yang Ou Guang Yang Kaiyuan Deng Qiong wang Zhaoyang wang Wenhao wang Quansheng zhang Hang wang Wei Sun Peiqing Sun Shuang Yang Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation Medical College of Nankai UniversityTianjin 300071China College of Pharmacy Nankai UniversityTianjin 300071China Tianjin Key Laboratory of Organ Transplantation Tianjin First Center HospitalTianjin 300192China Department of Cancer Biology Wake Forest University School of MedicineWinston-SalemNC 27157USA

Tumor metastasis is the most common cause of cancer-related deaths,yet it remains poorly *** transcription factor zinc-finger E-box binding homeobox 1(ZEB1)is involved in the epithelial-to-mesenchymal transition(EMT)and plays a pivotal role in tumor ***,the underlying mechanisms of the posttranslational modification of ZEB1 remain largely ***,we demonstrated that specific inhibition of CDK4/6 was able to block tumor metastasis of breast cancer by destabilizing the ZEB1 protein in vitro and in ***,we determined that the deubiquitinase USP51 is a bona fide target of CDK4/*** phosphorylation and activation of USP51 by CDK4/6 is necessary to deubiquitinate and stabilize ***,we found a strong positive correlation between the expression of p-RB(an indicator of CDK4/6 activity),p-USP51 and ZEB1 in metastatic human breast cancer ***,the high expression of p-RB,p-USP51,and ZEB1 was significantly correlated with a poor clinical *** together,our results provide evidence that the CDK4/6-USP51-ZEB1 axis plays a key role in breast cancer metastasis and could be a viable therapeutic target for the treatment of advanced human cancers.

关键词： metastasis CDK4 ubiquitin

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中国式现代化对西方式现代化的历史性超越

哈尔滨市委党校学报 2025年第1期 8-13,20页

作者：李包庚王佳宁波大学马克思主义学院浙江宁波315000

西方式现代化受资本逻辑支配,颠倒了人与物的关系,造成了社会两极分化与人的单向度发展、全球生态危机与全球生态治理困境、欺凌剥削他国、逆全球化思潮、西方中心主义等“西方现代性问题”。中国式现代化坚持人民至上原则,追求全体人... 详细信息

西方式现代化受资本逻辑支配,颠倒了人与物的关系,造成了社会两极分化与人的单向度发展、全球生态危机与全球生态治理困境、欺凌剥削他国、逆全球化思潮、西方中心主义等“西方现代性问题”。中国式现代化坚持人民至上原则,追求全体人民共同富裕与人的自由而全面的发展,统筹物质文明与生态文明协调发展,构建人类命运共同体,提倡世界不同文明相互尊重交流互鉴,实现了对西方式现代化的全面历史性超越,创造了人类文明新形态。中国式现代化彰显了中国特色社会主义制度的优越性,以建设中华民族现代文明、创造人类文明新形态为时代旨归,破除了“现代化=西方化”的迷思,走出了一条既具有中国特色又推进世界共同发展的现代化道路。

关键词：中国式现代化西方式现代化资本逻辑人民至上人类文明新形态

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Risk management for mine closure: A cloud model and hybrid semi-quantitative decision method

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International Journal of Minerals,Metallurgy and Materials 2020年第8期27卷 1021-1035页

作者： Chao-qun Cui Bing wang Yi-xin Zhao Yong-Jin zhang li-ming Xue Beijing Key Laboratory for Precise Mining of Intergrown Energy and Resources China University of Mining and Technology(Beijing)Beijing 100083China School of Energy and Mining Engineering China University of Mining and Technology(Beijing)Beijing 100083China Center for Energy and Environmental Policy Research Beijing Institute of TechnologyBeijing 100081China School of Law Hebei University of Economics and BusinessShijiazhuang 050061China

Mine closure is associated with many negative impacts on society and the *** these effects are not rationally addressed,they would pose risks of mine ***,a risk management method is needed to mitigate these adverse impacts and address mine-closure *** integral framework for mine-closure risk management that includes risk assessment and risk treatment was *** the fuzziness and randomness of the transformation between qualitative and quantitative knowledge in the risk assessment process,a novel risk assessment method based on the cloud model was presented,which fully considers the uncertainty in risks themselves and in the reasoning *** mine reutilization is an effective risk treatment option in response to the identified high risks,but it requires selecting optimal reutilization strategies for the successful implementation of the reuse *** this end,a hybrid semi-quantitative decision method is proposed to optimize *** results of a case study showed that this risk management methodology can help budget planning for risk treatment and provide an instructional framework to effectively reduce the negative effects of closed mines.

关键词： mine closure risk assessment risk treatment cloud model risk matrix

Effects of surface roughness on interfacial dynamic recrystallization and mechanical properties of Ti-6Al-3Nb-2Zr-1Mo alloy joints produced by hot-compression bonding

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Journal of Materials Science & Technology 2022年第1期96卷 199-211页

作者： Bijun Xie Zhenxiang Yu Haiyang Jiang Bin Xu Chunyang wang Jianyang zhang Mingyue Sun Dianzhong li Yiyi li Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China College of Materials Science and Engineering University of Science and Technology of ChinaHefei 230026China

The influence of surface roughness on the interfacial dynamic recrystallization kinetics and mechanical properties of Ti-6 Al-3 Nb-2 Zr-1 Mo hot-compression bonding joints was systematically *** is found that for the bonding interface of rough surfaces,elongated fine grains are formed at the bonding interface due to shear deformation of the interfacial *** the surface roughness increases,the proportion of elongated grains drastically decreases as they further reorient to form equiaxed grains along the bonding interface of rougher surfaces resulting from severe incompatible deformation of the interface ***,high-density geometrically necessary dislocations accumulate around the interfacial recrystallization area to accommodate the incompatible strain and lattice rotation.A rotational dynamic recrystallization mechanism is thereby proposed to rationalize the formation of fine interfacial recrystallization grains during bonding of rough *** contrast to that of rough surfaces,bonding interface of polished surfaces exists in the form of straight interface grain boundaries without fine grains under the same deformation *** with the increase of deformation strain,small grain nuclei form along the bonding interface,which is associated with discontinuous dynamic recrystallization assisted by strain-induced boundary migration of interface grain ***,the bonding joints of rough surfaces show lower elongation compared with that of polished *** is because the formation of heterogeneous fine grains with low Schmid factor along the bonding interface of rough surfaces,leading to worse compatible deformation capability and thereby poor ductility of bonding joints.

关键词： Surface roughness Rotational dynamic recrystallization EBSD Geometrically necessary dislocations Mechanical properties

Cobalt single atoms supported on monolithic carbon with a hollow-on-hollow architecture for efficient transfer hydrogenations

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Nano Research 2023年第8期16卷 11358-11365页

作者： Xiangyi Gong De-Chang li Qian zhang Wenquan wang Zhengbin Tian Ge Su Minghua Huang Guang-Hui wang School of Materials Science and Engineering Ocean University of ChinaQingdao 266100China Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101China University of Chinese Academy of Sciences Beijing 100049China

Single-atom catalysts(SACs)have received considerable attention in hydrogenation of nitroaromatic compounds to aromatic *** order to enhance the exposure of single atoms and overcome the mass transfer limitation,construction of hierarchical porous supports for single atoms is highly ***,we report a straightforward method to synthesize Co single-atoms supported on a hollow-on-hollow structured carbon monolith(Co_(1)/HOHC-M)by pyrolysis ofα-cellulose monolith loaded with PS-core@ZnCo-zeolite imidazolate frameworks-shell nanospheres(PS@Zn-ZIFs/α-cellulose).The hollow-on-hollow structure consists of a large hollow void with a diameter of~290 nm(derived from the decomposition of polystyrene(PS)nanospheres)and a thin shell with hollow spherical pores with a diameter of~10 nm(derived from the evaporation of ZnO nanoparticles that are in-situ formed during pyrolysis in the presence of CO_(2)fromα-cellulose decomposition).Benefitting from the hierarchically porous architecture,the Co_(1)/HOHC-M exhibits excellent catalytic performance(reaction rate of 421.6 mmol·gCo^(-1)·h^(−1))in the transfer hydrogenation of nitrobenzene to aniline,outperforming the powdered sample of Co_(1)/HCS without the hollow spherical mesopores(reaction rate of 353.8 mmol·gCo^(-1)·h^(−1)).It is expected that this strategy could be well extended in heterogeneous catalysis,given the wide applications of porous carbon-supported single-atom catalysts.

关键词： hollow-on-hollow Co single-atoms nitrobenzene transfer hydrogenation