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Initial COVID-1. severity influenced by SARS-CoV-2-specific T cells imprints T-cell memory and inversely affects reinfection

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2791-2803页

作者： Gang Yang Jinpeng Cao Jian Qin Xinyue Mei Shidong Deng yingjiao Xia Jun Zhao Junxiang {1. Tao Luan Daxiang Chen Peiyu Huang Cheng Chen Xi sun Qi luo Jie Su Yunhui Zhang Nanshan Zhong Zhongfang {1. The Affiliated Hospital of Kunming University of Science and Technology.Department of Respiratory and Critical Care Medicine The First People’s Hospital of Yunnan provinceKunmingYunnanChina Guangzhou National laboratory BiolandGuangzhouGuangdongChina state {1. laboratory of Respiratory Disease&National Clinical Research Center for Respiratory Disease Guangzhou Institute of Respiratory Healththe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhou Medical UniversityGuangzhouChina

The immunoprotective components control COVID-1. disease severity,as well as long-term adaptive immunity maintenance and subsequent reinfection risk discrepancies across initial COVID-1. severity,remain ***,we longitudinally analyzed SARS-CoV-2-specific immune effectors during the acute infection and convalescent phases of 1.5 patients with COVID-1. categorized by *** found that early and robust SARS-CoV-2-specific CD4^(+)and CD8^(+)T cell responses ameliorate disease progression and shortened hospital stay,while delayed and attenuated virus-specific CD8^(+)T cell responses are prominent severe COVID-1. *** antiviral antibody generation rather than titer level associates with severe ***,initial COVID-1. severity imprints the long-term maintenance of SARS-CoV-2-specific adaptive immunity,demonstrating that severe convalescents exhibited more sustained virus-specific antibodies and memory T cell responses compared to mild/moderate ***,initial COVID-1. severity inversely correlates with SARS-CoV-2 reinfection ***,our study unravels the complicated interaction between temporal characteristics of virus-specific T cell responses and COVID-1. severity to guide future SARS-CoV-2 wave management.

关键词： severity immunity infection

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AlMCM-48介孔分子筛的合成研究

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燃料化学学报 2001年第Z1期29卷 26-27页

作者：王树国吴东孙予罕钟炳邓风罗晴 1.国科学院山西煤炭化学研究所煤转化国家重点实验室山西太原030001 中国科学院山西煤炭化学研究所煤转化国家重点实验室山西太原030001 中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室湖北武汉430071

采用正硅酸乙酯为硅源 ,十六烷基三甲基溴化铵作模板剂合成MCM 48介孔分子筛。用Al(NO3) 3 溶液浸渍MCM 48从而获得AlMCM 48。用XRD、2 7AlNMR对样品进行了表征。这种方法掺杂铝不破坏分子筛骨架结构 ,Si/Al低至 5时分子筛结构保持完好。

关键词： AlMCM-48 介孔分子筛固载

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The Occurrence and Role of Allantoin (5-ureidohydantoin) in Rice Grains

The Occurrence and Role of Allantoin (5-ureidohydantoin) in ...

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中国第五届植物化感作用学术研讨会

作者： wang Peng 1,sun Bei 1,KONG Chui-Hua ,2 ,XU Xiao-Hua 3 1 state key laboratory of Forest and Soil Ecology,institute of applied Ecology,chinese academy of sciences,Shenyang 110016,china 2 College of Resources and environmental sciences,china Agricultural University,Beijing 100193,china 3 state key laboratory of Elemento-organic Chemistry,Nankai University,Tianjin 300071,china

Allantoin (5-ureidohydantoin) was found in grains of 1. chinese rice *** profiles in these rice grains differed significantly among cultivars and *** always had the highest allantoin content,followed by brown rice and milled *** contained the lowest allantoin *** Japonica bran contained allantoin at high contents of over 1.0 μg/g,while indica bran rarely exceed 1.0 μg/*** was a positive relationship between grain allantoin levels and seedlings survival in paddy ***,exogenous allantoin increased soluble sugar and free praline contents,and decreased malondialdehyde (MDA) content in rice ***,allantoin did not show any antioxidant activity in a concentration-dependent manner through the free-radical scavenging capacity,reducing power,linoleic acid peroxidation inhibition and chelating *** results suggest that allantoin in rice grains may play a role in participating rice seeds resistant to low temperature stress rather than serving as a source of dietary bio-functional phytochemical.

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Effects of Diesel Concentration on the Thermal Conductivity,Specific Heat Capacity and Thermal Diffusivity of Diesel-Contaminated Soil

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Journal of Thermal Science 2024年第2期33卷 696-709页

作者： WU Yuhao WU Yuefei luo Gubai ZHANG Teng {1. Qing FAN Liwu SONG Xin YU Zitao key {1. of Clean Energy and Carbon Neutrality of Zhejiang Province Zhejiang UniversityHangzhou310027China state {1. laboratory of Clean Energy Utilization Zhejiang UniversityHangzhou310027China institute of Thermal Science and Power Systems School of Energy EngineeringZhejiang UniversityHangzhou310027China Center environmental Protection Technology Company Limited Beijing100176China institute of Soil Science Chinese Academy of SciencesNanjing210008China

High energy consumption is a serious issue associated with in situ thermal desorption(TD)remediation of sites contaminated by petroleum hydrocarbons(PHs).The knowledge on the thermophysical properties of contaminated soil can help predict accurately the transient temperature distribution in a remediation site,for the purpose of energy ***,such data are rarely reported for PH-contaminated *** this study,by taking diesel as a representative example for PHs,soil samples with constant dry bulk density but different diesel mass concentrations ranging from 0% to 20% were prepared,and the variations of their thermal conductivity,specific heat capacity and thermal diffusivity were measured and analyzed over a wide temperature range between 0℃ and 1.0℃.It was found that the effect of diesel concentration on the thermal conductivity of soil is negligible when it is below 1..When diesel concentration is below 1.%,the thermal conductivity of soil increases with raising the ***,when diesel concentration becomes above 1.%,the change of the thermal conductivity of soil with temperature exhibits the opposite *** is mainly due to the competition between soil minerals and diesel,because the thermal conductivity of minerals increases with temperature,whereas the thermal conductivity of diesel decreases with *** analysis results showed that,compared with temperature,the diesel concentration has more significant effects on soil thermal *** of the diesel concentration,with the increase of temperature,the specific heat capacity of soil increases,while the thermal diffusivity of soil *** addition,the results of a control experiment exhibited that the relative differences of the thermal conductivity of the soil samples containing the same concentration of both diesel and a pure alkane are all below 1.%,indicating that the results obtained with diesel in this study can be extended to the family of PHs.A theo

关键词： contaminated soil diesel concentration thermal conductivity specific heat capacity thermal diffusivity thermal desorption fractal model

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Variation characteristics of acid rain in Zhuzhou,Central china over the period 201.-2020

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Journal of environmental {1. 2024年第4期138卷 496-505页

作者： Jiahao Ren Liquan Zhu Xi Zhang Yuqian luo Xuecai Zhong Bowen Li Yuwen {1. Kai Zhang state {1. laboratory of environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China Zhuzhou Environment Monitoring Center Zhuzhou 412000China Faculty of environmental Engineering The University of Kitakyushu1–1 HibikinoWakamatsuKitakyushuFukuoka 808-0135Japan College of Natural Resources and Environment South China Agricultural UniversityGuangzhou 510642China

Zhuzhou was one of the most polluted cities in china with the serious acid *** to the implementation of air pollution control measures from 201. to 201.,the acid rain pollution in this city has *** order to understand the recent situation,a comprehensive study on the acid rain was carried out from January 201. to December *** pH values during the study period varied from 3.3 to 7.5,with a volume-weighted mean value of *** predominant acidic components of the precipitation were SO_(4)^(2-)and NO_(3)^(-),accounting for 89.3% of the total *** ratio of non-sea-salt SO_(4)^(2-)to NO_(3)^(-)showed a decreasing trend,revealing that the pollution type of acid rain changed from sulfuric acid type to sulfuric acid and nitric acid compound *** correlation analysis(p2-)was positively correlated with NH_(4)^(+),Ca^(2+),and Mg^(2+);hence,it predominated in precipitation as(NH_(4))_(2)SO_(4),NH_(4)HSO_(4),CaSO_(4),and MgSO_(4).Significant positive correlation of Ca^(2+)with Mg^(2+)shows that they may originated mainly from *** positive correlation between SO_(4)^(2-)and F^(-)and Cl^(-)indicate that their source may be related to the non-ferrous metal smelting industry in *** correlation analysis shows that emissions from the non-ferrous metal smelting industry in the area have a large significant on SO_(4)^(2-)and F^(-)in precipitation,while Cl^(-)may still be emitted from other anthropogenic sources.

关键词： Acid rain pH Chemical composition Neutralization factor Correlation analysis

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Dynamic membrane filtration accelerates electroactive biofilms in bioelectrochemical systems

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environmental Science and Ecotechnology 2024年第4期20卷 208-217页

作者： Jinning wang Mei Chen Jiayao Zhang Xin{1. sun Nan Li Xin wang MOE key {1. of Pollution Processes and environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution ControlCollege of Environmental Science and EngineeringNankai UniversityNo.38 Tongyan RoadJinnan DistrictTianjin300350China School of environmental Science and Engineering Tianjin UniversityNo.35 Yaguan RoadJinnan DistrictTianjin300350China

Bioelectrochemical systems(BES)have emerged as a dual-function technology for treating wastewater and recovering energy.A vital element of BES is the rapid formation and maintenance of electroactive biofilms(EABs).Previous attempts to accelerate EAB formation and improve electroactivities focused on enhancing the bacterial adhesion process while neglecting the rate-limiting step of the bacterial transport ***,we introduce membrane filtration into BES,establishing a dynamic membrane filtration system that enhances overall *** observed that optimal membrane flux considerably reduced the startup time for EAB ***,EABs established under a 25 L m^(-2)h^(-1.flux(EAB_(25)LMH)had a formation time of 43.8±1.3 h,notably faster than the 51.4±1.6 h in the static state(EAB_(0)LMH).Additionally,EAB_(25)LMH exhibited a significant increase in maximum current density,approximately 2.2 times higher than EAB_(0)*** correlation analysis indicated a positive relationship between current densities and biomass quantities and an inverse correlation with startup *** analysis revealed two critical findings:(i)variations in maximum current densities across different filtration conditions were associated with redox-active substances and biomass accumulation,and(ii)the incorporation of a filtration process in EAB formation enhanced the proportion of viable cells and encouraged a more diverse range of electroactive ***,the novel electroactive membrane demonstrated sustained current production and effective solid-liquid separation during prolonged operation,indicating its potential as a viable alternative in membrane-based *** approach not only provides a new operational model for BES but also holds promise for expanding its application in future wastewater treatment solutions.

关键词： Electroactive biofilm Membrane filtration Spatial structure Mass transfer Microbial community

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A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generation

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Green Energy & Environment 2024年第1期9卷 152-162页

作者： Jingwen Ma Xiang Li Guangyu Lei Jun wang Juan wang Jian Liu Ming Ke Yang Li Chunwen sun School of Chemical and environmental Engineering China University of Mining and Technology(Beijing)Beijing100083China state {1. laboratory of Heavy Oil Processing China University of PetroleumBeijing102249China Lab of Advanced Nano-structures&Transfer Processes Department of Chemical EngineeringTianjin UniversityTianjin300354China Petrochina Planning and Engineering {1. Beijing100083China

The exploitation of electrocatalysts with high activity and durability for HER is desirable for future energy systems,but it is still a *** have attracted increasing attentions,but the preparation process often needs toxic regents or dangerous reaction ***,we develop a general green method to fabricate metal-rich NMPs anchored on NPG through pyrolyzing DNA cross-linked *** obtained Ru_(2) P-NPG exhibits an ultrasmall overpotential of 7 mV at 1. mA cm^(2) and ultralow Tafel slope of 33 mV dec^(-1. in 1.0 mol L?1.KOH,even better than that of commercial Pt/*** addition,Ru 2 P-NPG also shows low overpotentials of 29 and 78 mV in 0.5 mol L^(-1. H_(2)SO_(4) and 1.0 mol L^(-1. PBS,*** superior activity can be attributed to the ultrafine dispersion of Ru 2 P nanoparticles for more accessible sites,more defects formed for abundant active sites,the two-dimensional plane structure for accelerated electron transfer and mass transport,as well as the regulation of electron distribution of the ***,the synthetic method can also be applied to prepare other metal-rich noble metal phosphides(Pd_(3)P-NPG and Rh_(2)P-NPG),which also exhibits high activity for *** work provides an effective strategy for designing NMP-based electrocatalysts.

关键词： Noble metal phosphides Electrocatalyst Deoxyribonucleic acid Hydrogen evolution pH universal

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High-resolution carbon isotope record for the Paleocene-Eocene thermal maximum from the Nanyang Basin,Central china

High-resolution carbon isotope record for the Paleocene-Eoce...

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中国科学院地质与地球物理研究所第十届(201.年度)学术年会

作者： ZHU Min~(1,2*),DING ZhongLi~1,wang Xu~1,CHEN ZuoLing~1,JIANG HanChao~3, DONG XinXin~1,JI JunLiang~4,TANG ZiHua~1 & luo Pan~1 1 key laboratory of Cenozoic Geology and Environment,institute of Geology and Geophysics,chinese academy of sciences,Beijing 100029, china 2 The Graduate University of chinese academy of sciences,Beijing 100049,china 3 state key laboratory of Earthquake Dynamics,institute of Geology,china Earthquake Administration,Beijing 100029,china 4 key laboratory of Biogeology and environmental Geology,Ministry of Education,china University of Geosciences,Wuhan 430074,china

The Paleocene-Eocene thermal maximum(PETM) was a transient episode of global warming,associated with massive atmospheric greenhouse gas input that occurred at the Paleocene/Eocene *** and isotope stratigraphic studies indicate that the PETM event is well documented in the marl deposits of the Yuhuangding section in the Nanyang Basin,Central china,with a carbon isotope negative excursion of～6.1.within 1.-m-thick marl *** is the highest resolution record of the PETM so far found in the *** PETM event was triggered within 2-cm-thick marl sediments,with a decrease ofδC (stable carbon isotope ratio) from -3.2‰to -5.2‰,suggesting a massive methane hydrate release for a transient period that was possibly caused by a catastrophic event.A comparison between marine and terrestrial records indicates a"Three-Phase Model"for the PETM *** there is a rapid negative excursion in theδC record,followed by a slowly decreasing trend,and then a gradual positive recovery,corresponding respectively to a rapid dissociation of oceanic methane hydrate,followed by a slow release of methane and then the consumption of the released methane.

关键词： PETM carbon isotope greenhouse gases Nanyang Basin

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Fe-doped Co_(3)O_(4) nanowire strutted 3D pinewood-derived carbon: A highly selective electrocatalyst for ammonia production via nitrate reduction

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Nano Research 2024年第4期17卷 2276-2282页

作者： Xuwei Liu Chaozhen Liu Xun He Zhengwei Cai Kai Dong Jun Li Xiaoya Fan Ting Xie Xiya Yang Yonglan luo Dongdong Zheng Shengjun {1. Sulaiman Alfaifi Feng Gong Xuping {1. institute of Fundamental and Frontier {1. University of Electronic Science and Technology of ChinaChengdu 610054China key {1. of Energy Thermal Conversion and Control of Ministry of Education School of Energy and EnvironmentSoutheast UniversityNanjing 211189China College of Chemistry Chemical Engineering and Materials ScienceShandong Normal UniversityJinan 250014China Chemistry Department Frontier of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia

Nitrate(NO_(3)^(-)),a nitrogen-containing pollutant,is prevalent in aqueous solutions,contributing to a range of environmental and health-related *** electrocatalytic reduction of NO_(3)^(-)holds promise as a sustainable approach to both eliminating NO_(3)^(-)and generating valuable ammonia(NH_(3)).Nevertheless,the reduction reaction of NO_(3)^(-)(NO_(3)^(-)RR),involving 8-electron transfer process,is intricate,necessitating highly efficient electrocatalysts to facilitate the conversion of NO_(3)^(-)to NH_(3).In this study,Fe-doped Co_(3)O_(4) nanowire strutted three-dimensional(3D)pinewood-derived carbon(Fe-Co_(3)O_(4)/PC)is proposed as a high-efficiency NO_(3)^(-)RR electrocatalyst for NH_(3) *** within 0.1.M NaOH containing NO_(3)^(-),Fe-Co_(3)O_(4)/PC demonstrates exceptional performance,obtain an impressively large NH_(3) {1.eld of 0.55 mmol·h^(-1.·cm^(-2) and an exceptionally high Faradaic efficiency of 96.5%at-0.5 V,superior to its Co_(3)O_(4)/PC counterpart(0.2 mmol·h^(-1.·cm^(-2),73.3%).Furthermore,the study delves into the reaction mechanism of Fe-Co_(3)O_(4) for NO_(3)^(-)RR through theoretical calculations.

关键词： Fe-doped Co_(3)O_(4) nanowire pinewood-derived carbon electrocatalytic NO_(3)-reduction NH_(3) synthesis density functional theory

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Nanodiamond-Assisted High Performance Lithium and Sodium Ions Co-Storage

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Energy & environmental Materials 2024年第6期7卷 94-105页

作者： Xiaochen sun Xuan Gao Chang Su Wei Cheng Nan Gao Xin Zhang Mengmeng Gong Haobo Dong Yuhang {1. Guanjie He Hongdong Li state {1. Lab of Superhard Materials College of PhysicsJilin UniversityChangchun130012 China Christopher Ingold laboratory Department of ChemistryUniversity College London20 Gordon StreetLondonWC1H 0AJ UK Nuffield College University of OxfordNew RoadOxford OX11NFUK

While lithium resources are scarce for high energy-dense lithium-ion batteries(LIBs),sodium-ion batteries(SIBs),serving as an alternative,inherently suffer from low capacity and the high-cost use of non-graphite *** Li-and Na-ions within a single battery system is expected to mitigate the shortcomings of both systems while leveraging their respective *** this study,we developed and assembled a nanodiamonds(NDs)-assisted co-Li/Na-ion battery(ND–LSIB).This innovative battery system comprised a commercial graphite anode,an ND-modified polypropylene(DPP)separator,a hybrid lithium/sodium-based electrolyte,and a *** is theoretically and experimentally demonstrated that the ND/Li co-insertion can serve as an ion-drill opening graphite layers and reconstructing graphite anodes into few-layered graphene with expanding interlayer space,achieving highly efficient Li/Na storage and the theoretical maximum of LiC_(6)for Li storage in *** addition,ND is helpful for creating a LiF-/NaF-rich hybrid solid electrolyte interface with improved ionic mobility,mechanical strength,and ***,ND–LSIBs have higher specific capacities~1.4 times the theoretical value of LIBs and show long-term cycling *** study proposes and realizes the concept of Li/Na co-storage in one ion battery with compatible high-performance,cost-effectiveness,and industrial prospects.

关键词： battery lithium electrolyte

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