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Soil inorganic amendments produce safe rice by reducing the transfer of Cd and increasing key amino acids in brown rice

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Journal of Environmental Sciences 2024年第2期136卷 121-132页

作者： Fanyi kong Shenggao Lu Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment Key Laboratory of Environmental Remediation and Ecosystem HealthMinistry of EducationCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou 310058China

The digestibility of cadmium(Cd)in brown rice is directly related to amino acid metabolism in rice and human *** our field study,three kinds of alkaline calcium-rich soil inorganic amendments(SIAs)at three dosages were applied to produce safe rice and improve the quality of rice in Cd-contaminated *** the increased application of SIA,Cd content in iron plaque on rice root significantly increased,the transfer of Cd from rice root to grain significantly decreased,and then Cd content in brown rice decreased *** vitro digestibility of Cd in brown rice was estimated by a physiologically based extraction *** showed that more than 70%of Cd in brown rice could be digested by simulated gastrointestinal *** on the total and digestible Cd contents in brown rice to evaluate the health risk,the application of 2.25 ton SIA/ha could produce safe rice in acidic slightly Cd-contaminated paddy *** amino acids(AAs)in brown rice were determined by high-performance liquid *** contents of 5 key AAs(KAAs)that actively respond to environmental changes increased significantly with the increased application of *** structural equation model indicated that KAAs could be affected by the Cd translocation capacity from rice root to grain,and consequently altered the ratio of indigestible Cd in brown *** formation of indigestible KAAs-Cd complexes by combining KAAs(phenylalanine,leucine,histidine,glutamine,and asparagine)with Cd in brown rice could be considered a potential mechanism for reducing the digestibility of Cd.

关键词： Cadmium digestibility Soil inorganic amendments Safe rice Amino acid Priming effect Health risk

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Complete genome assembly provides insights into the centromere architecture of pumpkin(Cucurbita maxima)

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Plant Communications 2024年第9期5卷 12-15页

作者： Qingguo Zeng Minghua Wei Shuai li Haiyan Wang Changjuan Mo li Yang Xinzheng li Zhilong Bie Qiusheng kong national Key Laboratory for Germplasm Innovation&Utilization of Horticultural Crops College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhan 430070China Hubei Hongshan Laboratory Wuhan 430070China School of Horticulture and Landscape Architecture Henan Institute of Science and TechnologyXinxiang 453003China

Dear Editor,Pumpkin(Cucurbita maxima)belongs to the Cucurbita genus of the Cucurbitaceae family and is a globally cultivated vegetable crop with great economic *** global production and planting area of pumpkin,includ... 详细信息

关键词： significance. insight globally

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Asperochones A and B,two antimicrobial aromatic polyketides from the endophytic fungus Aspergillus ***-2

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Chinese Chemical Letters 2024年第9期35卷 206-209页

作者： Hong Zhang Cui-Ping li li-li Wang Zhuo-Da Zhou Wen-Sen li ling-Yi kong Ming-Hua Yang Jiangsu Key Laboratory of Bioactive natural Product Research and State Key Laboratory of natural Medicines China Pharmaceutical UniversityNanjing 210009China

Two novel fungal metabolites,asperochones A and B,were obtained from an Aspergillus *** structures were determined by 1D/2D nuclear magnetic resonance(NMR)spectroscopy,high resolution electrospray ionization mass spectroscopy(HRESIMS),and single-crystal X-ray diffraction *** A possesses an intriguing skeleton bearing 5/6/6/6/7/5/5/5 octacyclic ring system,and asperochone B also exhibits an unusual carbon skeleton with five stereochiral *** structures were proposed as heterotrimeric and heterodimeric products of aromatic *** addition,asperochone A exhibited a potential anti-tuberculosis effect since it showed a moderate potency against Mycobacterium smegmatis.

关键词： Aspergillus sp. Asperochones A and B Aromatic polyketides Heterotrimeric compound Anti-tuberculosis effect Antifibrotic activity

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Organic ligand nanoarchitectonics for BiVO_(4) photoanodes surface passivation and cocatalyst grafting

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nano Research 2024年第5期17卷 3667-3674页

作者： Jingyi lin Xin li Zhiliang Wang Runlu liu Hui Pan Yixin Zhao lingti kong Yao li Shenmin Zhu lianzhou Wang State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China nanomaterials Centre School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnologythe University of QueenslandQLD 4072Australia School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Hubei Key Laboratory of Plasma Chemistry and Advanced Materials Wuhan Institute of TechnologyWuhan 430205China

Bismuth vanadate(BiVO_(4))is a promising photoanode material for efficient photoelectrochemical(PEC)water splitting,whereas its performance is inhibited by detrimental surface *** solve the problem,herein,a low-cost organic molecule 1,3,5-benzenetricarboxylic acid(BTC)is selected for surface passivation of BiVO_(4) photoanodes(BVOs),which also provides bonding sites for Co^(2+)to anchor,resulting in a Co-BTC-BVO *** to its strong coordination with metal ions,BTC not only passivates surface states of BVO,but also provides bonding between BVO and catalytic active sites(Co^(2+))to form a molecular *** study and interfacial charge kinetic investigation reveal that chemical bonding formed at the interface greatly suppresses charge recombination and accelerates charge *** obtained Co-BTC-BVO photoanode exhibits a photocurrent density of 4.82 mA/cm^(2) at 1.23 V *** hydrogen electrode(RHE)and a low onset potential of 0.22 VRHE under AM 1.5 G illumination,which ranks among the best photoanodes coupled with Co-based *** work presents a novel selection of passivation layers and emphasizes the significance of interfacial chemical bonding for the construction of efficient photoanodes.

关键词： bismuth vanadate photoanode water splitting surface passivation bridging ligands

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The Observed Near-Surface Energy Exchange Processes over Arctic Glacier in Summer

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Journal of Meteorological Research 2024年第3期38卷 600-607页

作者： libo ZHOU Jinhuan ZHU linlin kong Peng li Shupo MA Fei li Han ZOU Meigen ZHANG Irina REPIna Department of Lower Atmospheric Observation and Research Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China Department of Weather Forecast Aviation Meteorological Centre of Air Traffic Management BureauCivil Aviation Administration of ChinaBeijing100015China A.M.Obukhov Institute of Atmospheric Physics Russian Academy of Sciences(RAS)Moscow119017Russian Federation

Under Arctic warming,near-surface energy transfers have significantly changed,but few studies have focused on energy exchange over Arctic glacier due to limitations in available *** this study,the atmospheric energy exchange processes over the Arctic glacier surface were analyzed by using observational data obtained in summer 2019 in comparison with those over the Arctic tundra *** energy budget over the glacier greatly differed from that over the tundra,characterized by less net shortwave radiation and downward sensible heat flux,due to the high albedo and icy *** of the incoming solar radiation was injected into the glacier in summer,leading to snow ice *** the observation period,strong daily variations in near-surface heat transfer occurred over the Arctic glacier,with the maximum downward and upward heat fluxes occurring on 2 and 6 July 2019,*** analyses suggested that the maximum downward heat flux is mainly caused by the strong local thermal contrast above the glacier surface,while the maximum upward heat transfer cannot be explained by the classical turbulent heat transfer theory,possibly caused by countergradient heat *** results indicated that the near-surface energy exchange processes over Arctic glacier may be strongly related to local forcings,but a more in-depth investigation will be needed in the future when more observational data become available.

关键词： Arctic glacier tundra energy exchange processes

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li-promoted C3N4 catalyst for efficient isomerization of glucose into fructose at 50℃ in water

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Green Energy & Environment 2024年第9期9卷 1419-1426页

作者： Wang liu Yanfei Zhang Mengya Sun Xinpeng Zhao Shenggang li Xinqing Chen liangshu Zhong lingzhao kong CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research Institute Chinese Academy of Sciences University of Chinese Academy of Sciences School of Physical Science and Technology Shanghai Tech University School of Environmental Science and Engineering Suzhou University of Science and Technology

Efficient and selective glucose-to-fructose isomerization is a crucial step for production of oxygenated chemicals derived from sugars,which is usually catalyzed by base or Lewis acid heterogeneous ***,high yield and selectivity of fructose cannot be simultaneously obtained under mild conditions which hamper the scale of application compared with enzymatic ***,a li-promoted C3N4catalyst was exploited which afforded an excellent fructose yield （40.3 wt%） and selectivity （99.5%） from glucose in water at 50~oC,attributed to the formation of stable li–N bond to strengthen the basic sites of ***,the so-formed N6–li–H2O active site on li–C3N4catalyst in aqueous phase changes the local electronic structure and strengthens the deprotonation process during glucose isomerization into *** superior catalytic performance which is comparable to biological pathway suggests promising applications of lithium containing heterogeneous catalyst in biomass refinery.

关键词： Glucose Fructose Isomerization li–C 3 N 4 Density functional theory calculations

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母-胎免疫调节机制在妊娠高血压综合征病理过程中的作用

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中国免疫学杂志 2017年第9期33卷 1398-1401页

作者：李丽娜徐振宇孔丽娜皖南医学院弋矶山医院妇产科芜湖241001 皖南医学院弋矶山医院药剂科芜湖241001

目的:分析妊娠高血压综合征(PIH)患者外周血中免疫细胞因子水平变化及滋养层细胞中免疫相关转录因子的基因、蛋白表达情况,探讨母-胎免疫调节机制在妊娠高血压综合征病理过程中的作用。方法:纳入PIH患者50例作为观察组,选择同期分娩的... 详细信息

目的:分析妊娠高血压综合征(PIH)患者外周血中免疫细胞因子水平变化及滋养层细胞中免疫相关转录因子的基因、蛋白表达情况,探讨母-胎免疫调节机制在妊娠高血压综合征病理过程中的作用。方法:纳入PIH患者50例作为观察组,选择同期分娩的正常妊娠妇女40例作为对照组。EliSA法检测两组孕妇外周血中IFN-γ、IL-4、IL-17及TGF-β水平;实时荧光定量PCR(RT-q PCR)法和蛋白质印迹法(Western blot)分别测定两组孕妇胎盘滋养层细胞中转录因子T-bet、GATA-3、RORC、Foxp3的mRna及蛋白表达情况。结果:(1)观察组外周血中IFN-γ和IL-17水平明显高于对照组,TGF-β水平明显低于对照组(P0.05);观察组IFN-γ/IL-4、IL-17/TGF-β比值均明显大于对照组(Pna及蛋白表达水平均显著升高(Pna及蛋白表达水平均显著降低(P<0.05),T-bet/GATA-3及RORC/Foxp3比值均显著增大(P<0.05)。结论:PIH具有明显的Th1/Th2及Th17/Treg比例失衡现象,其病理机制可能与Th细胞介导的母-胎免疫耐受机制功能紊乱有关。

关键词：妊娠高血压综合征母-胎免疫耐受滋养层细胞细胞因子转录因子

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Targeted multi-agent communication algorithm based on state control

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Defence Technology（防务技术） 2024年第1期31卷 544-556页

作者： li-yang Zhao Tian-qing Chang Lei Zhang Jie Zhang Kai-xuan Chu De-peng kong Department of Weaponry and Control Army Academy of Armored ForcesBeijing100072China Unit 92942 Beijing100161China

As an important mechanism in multi-agent interaction,communication can make agents form complex team relationships rather than constitute a simple set of multiple independent ***,the existing communication schemes can bring much timing redundancy and irrelevant messages,which seriously affects their practical *** solve this problem,this paper proposes a targeted multiagent communication algorithm based on state control(SCTC).The SCTC uses a gating mechanism based on state control to reduce the timing redundancy of communication between agents and determines the interaction relationship between agents and the importance weight of a communication message through a series connection of hard-and self-attention mechanisms,realizing targeted communication message *** addition,by minimizing the difference between the fusion message generated from a real communication message of each agent and a fusion message generated from the buffered message,the correctness of the final action choice of the agent is *** evaluation using a challenging set of Star Craft II benchmarks indicates that the SCTC can significantly improve the learning performance and reduce the communication overhead between agents,thus ensuring better cooperation between agents.

关键词： Multi-agent deep reinforcement learning State control Targeted interaction Communication mechanism

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Rational Design of Ruddlesden-Popper Perovskite Ferrites as Air Electrode for Highly Active and Durable Reversible Protonic Ceramic Cells

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nano-Micro Letters 2024年第9期16卷 308-324页

作者： na Yu Idris Temitope Bello Xi Chen Tong liu Zheng li Yufei Song Meng Ni Department of Building and Real Estate Research Institute for Sustainable Urban Development(RISUD)and Research Institute for Smart Energy(RISE)The Hong Kong Polytechnic UniversityHung HomKowloonHong KongPeople’s Republic of China The Hong kong Polytechnic University Shenzhen Research Institute Shenzhen 518057GuangdongPeople’s Republic of China Department of Mechanical and Aerospace Engineering The Hong Kong University of Science and TechnologyClear Water BayHong KongPeople’s Republic of China

Reversible protonic ceramic cells(RePCCs)hold promise for efficient energy storage,but their practicality is hindered by a lack of high-performance air electrode ***-Popper perovskite Sr_(3)Fe_(2)O_(7−δ)(SF)exhibits superior proton uptake and rapid ionic conduction,boosting ***,excessive proton uptake during RePCC operation degrades SF’s crystal structure,impacting *** study introduces a novel A/B-sites co-substitution strategy for modifying air electrodes,incorporating Sr-deficiency and Nb-substitution to create Sr_(2.8)Fe_(1.8)Nb_(0.2)O_(7−δ)(D-SFN).Nb stabilizes SF’s crystal,curbing excessive phase formation,and Sr-deficiency boosts oxygen vacancy concentration,optimizing oxygen *** D-SFN electrode demonstrates outstanding activity and durability,achieving a peak power density of 596 mW cm^(−2)in fuel cell mode and a current density of−1.19 A cm^(−2)in electrolysis mode at 1.3 V,650℃,with excellent cycling *** approach holds the potential for advancing robust and efficient air electrodes in RePCCs for renewable energy storage.

关键词： Reversible protonic ceramic cells Air electrode Ruddlesden-Popper perovskite Hydration Oxygen reduction reaction

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Biomimetic lightweight Design of Legged Robot Hydraulic Drive Unit Shell Inspired by Geometric Shape of Fish Bone Rib Structure

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Journal of Bionic Engineering 2024年第3期21卷 1238-1252页

作者： Zhipeng Huang Xinjie li Xikang Guan Xueqing Sun Chenxu Wang Yuepeng Xu Bin Yu Xiangdong kong School of Mechanical Engineering Yanshan UniversityQinhuangdao066004China School of Arts and Design Yanshan UniversityQinhuangdao066004China Hebei Provincial Key Laboratory of Heavy Machinery Fluid Power Transmission and Control Qinhuangdao066004China

The lightweight design of hydraulic quadruped robots,especially the lightweight design of the leg joint Hydraulic Drive Unit(HDU),can improve the robot's response speed,motion speed,endurance,and load ***,the lightweight design of HDU is a huge challenge due to the need for structural *** paper is inspired by the geometric shape of fish bones and biomimetic reinforcing ribs on the surface of the HDU shell are designed to increase its strength and reduce its ***,a HDU shell with biomimetic fish bone reinforcing ribs structure is ***,the MATLAB toolbox and ANSYS finite element analysis module are used to optimize the parameters of the biomimetic reinforcing ribs structure and the overall layout of the ***,the HDU shell is manufactured using additive manufacturing technology,and a performance testing platform is built to conduct dynamic and static performance tests on the designed *** experimental results show that the HDU with biomimetic fish bone reinforcing ribs has excellent dynamic performance and better static performance than the prototype model,and the weight of the shell is reduced by 20%compared to the prototype *** work has broad application prospects in the lightweight and high-strength design of closed-pressure vessel components.

关键词： Hydraulic drive unit lightweight design of shell Biomimetic fish bone structure design Dynamic and static performance testing

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