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Field-based evidence for the enrichment of intrinsic antibiotic resistome stimulated by plant-derived fertilizer in agricultural soil

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Journal of Environmental Sciences 2024年第1期135卷 728-740页

作者： Shihai Liu Ziming Han dong Zhu Xiao Luan Liujie deng Liping dong Min Yang yu Zhang State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China State Environmental Protection Engineering Center for Harmless Treatment and Resource Utilization of Antibiotic Residues Khorgos 835007China University of Chinese Academy of Sciences Beijing 100049China

Animal manures have been demonstrated to enhance antibiotic resistance in agricultural ***,little is known about the effects of plant-derived fertilizer on soil antibiotic ***,metagenomic sequencing was used to investigate the effects of a plantderived fertilizer processed from sugarcane and beet on soil antibiotic resistance genes(ARGs)in a soybean field along crop growth *** profiles in the soils amended by plant-derived fertilizer were compared with those in the soils amended by chicken *** abundance and diversity of total ARGs in the soils amended by plant-derived fertilizer were significantly(P<0.05)elevated at the sprout stage,to a level comparable to that in the manured ***,unlike chicken manure mainly introducing manure-borne ARGs to soil,the plant-derived fertilizer was indicated to mainly enrich multidrug resistance genes in soil by nourishing indigenous *** with abundances in amended soils significantly(P<0.05)higher than in unamended soils at the sprout stage of soybean were considered as enriched *** in the abundance of the enriched ARGs was observed in both the amended soils from the sprout to the *** analysis further identified Proteobacteria and Bacteroidetes as the primary bacterial taxa involved in the temporal variation of the enriched ARGs in the soils amended by plant-derived fertilizer,while in manured soils were Firmicutes and *** revealed by multivariate statistical analyses,variation of the enriched ARGs in the soils amended by plant-derived fertilizer was majorly attributed to the response of co-occurred bacteria to depleting nutrients,which was different from the failed establishment of manure-borne bacteria in the manured *** study provided field-based evidence that plant-derived fertilizer stimulated the intrinsic antibiotic resistome,and proposed attention to the un-perceived risk since some clinically relevant ARGs originate and evolve fr

关键词： Organic fertilizer Intrinsic antibiotic resistance Indigenous bacteria Metagenomic sequencing

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Discovering a formula for the high temperature oxidation behavior of FeCrAlCoNi based high entropy alloys by domain knowledge-guided machine learning

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Journal of Materials Science & Technology 2023年第18期149卷 237-246页

作者： Qinghua wei Bin Cao Lucheng deng Ankang Sun Ziqiang dong Tong-Yi Zhang Materials Genome Institute Shanghai UniversityShanghai 200444China Hong Kong University of Science and Technology(Guangzhou) Guangzhou 511458China

A mathematical formula of high physical interpretation,and accurate prediction and large generaliza-tion power is highly desirable for science,technology and *** this study,we performed a domain knowledge-guided machine learning to discover high interpretive formula describing the high-temperature oxidation behavior of FeCrAlCoNi-based high entropy alloys(HEAs).The domain knowledge suggests that the exposure time dependent and thermally activated oxidation behavior can be described by the synergy formula of power law multiplying Arrhenius *** pre-factor,time exponent(m),and activation energy(Q)are dependent on the chemical compositions of eight elements in the FeCrAlCoNi-based *** Tree-Classifier for Linear Regression(TCLR)algorithm utilizes the two exper-imental features of exposure time(t)and temperature(T)to extract the spectrums of activation energy(Q)and time exponent(m)from the complex and high dimensional feature space,which automatically gives the spectrum of *** three spectrums are assembled by using the element features,which leads to a general and interpretive formula with high prediction accuracy of the determination coefficient R^(2)=*** role of each chemical element in the high-temperature oxidation behavior is analytically illustrated in the three spectrums,thereby the discovered interpretative formula provides a guidance to the inverse design of HEAs against high-temperature *** present work demonstrates the sig-nificance of domain knowledge in the development of materials informatics.

关键词： Domain knowledge Interpretive formula High entropy alloys Oxidation

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Facile Synthesis of Five-membered Phosphoroheterocycles Bearing N-P-N and S-P-N Moieties

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Chinese Chemical Letters 2001年第12期12卷 1065-1068页

作者： Sheng Lou deng dong Zhi LIU Ru yu CHEN School of Chemical Engineering Tianjin UniversityTianjin 300072 Institute of Elemento-Organic Chemistry Nankai UniversityTianjin 300071

New reactions of Lawesson reagent (LR) with alpha -hydroxy (amino)nitriles have been studied. The experimental results showed that the five-membered phosphoroheterocycles 2 and 4 bearing N-P-N or S-P-N moiety could be... 详细信息

关键词： new reactions Lawesson reagent nitriles phosphoroheterocycle mechanism

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20S proteasome and glyoxalase 1 activities decrease in erythrocytes derived from Alzheimer’s disease patients

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Neural Regeneration Research 2020年第1期15卷 178-183页

作者： Hui Lv Gui-yuan wei Can-Shou Guo yu-Feng deng Yong-Ming Jiang Ce Gao Chong-dong Jian Youjiang Medical University for Nationalities

As a result of accumulating methylglyoxal and advanced glycation end products in the brains of patients with Alzheimer’s disease,it is considered a protein precipitation *** ubiquitin proteasome system is one of the most important mechanisms for cells to degrade proteins,and thus is very important for maintaining normal physiological function of the nervous *** study recruited 48 individuals with Alzheimer’s disease(20 males and 28 females aged 75±6 years)and 50 healthy volunteers(21 males and 29 females aged 72±7 years)from the Affiliated Hospital of Youjiang Medical University for Nationalities(Baise,China)between 2014 and *** levels of malondialdehyde and H2O2 were measured by colorimetry,while glyoxalase 1 activity was detected by *** addition,20S proteasome activity in erythrocytes was measured with a fluorescent substrate *** and glyoxalase 1 protein expression in erythrocyte membranes was detected by western blot *** results demonstrated that compared with the control group,patients with Alzheimer’s disease exhibited increased plasma malondialdehyde and H2O2 levels,and decreased glyoxalase 1 activity;however,expression level of glyoxalase 1 protein remained ***,activity of the 20S proteasome was decreased and expression of ubiquitin protein was increased in *** findings indicate that proteasomal and glyoxalase activities may be involved in the occurrence of Alzheimer’s disease,and erythrocytes may be a suitable tissue for Alzheimer’s disease *** study was approved by the Ethics Committee of Youjiang Medical University for Nationalities(approval ***12017013)on May 3,2017.

关键词： 20S proteasomal activity Alzheimer’s disease erythrocytes glyoxalase 1 H2O2 malondialdehyde nerve regeneration total ubiquitin

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Novel photocatalytic reactor for degradation of DDT in water and its optimization model

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第5期10卷 732-738页

作者： wei-hai PANG Nai-yun GAO Yang deng yu-lin TANG State Key Laboratory of Pollution Control and Resources Reuse Tongji University Shanghai 200092 China Department of Civil Engineering and Surveying University of Puerto Rico at Mayaguez Mayaguez PR 00681 USA

A novel photocatalytic reactor was developed to remove （1,1-bis（4-chlorophenyl）-2,2,2-trichloroethane）（DDT） from water. In the reactor, a cenosphere was used to support TiO2 film made by means of sol-gel. Because the cenospheres were coated with TiO2, their specific gravity was slightly increased from the original 0.6-0.8 to 0.8-0.9, so that they were able to be suspended in water. With the mixed operation of a bubbler, the water in the reactor was in a well-fluidized state. The bottom of the reactor is a sand filter bed, which can be used to prevent the photocatalyst from being lost. A mathematical model of the reactor has been developed in the two primary influential factors： ultraviolet （UV） light intensity and photocatalyst concentration. With such a model, the reactor can be designed more reasonably.

关键词： Photocatalytic reactor Persistent organic pollutants (POPs) Reactor model

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Acoustic characteristics of cold-seep methane bubble behavior in the water column and its potential environmental impact

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Acta Oceanologica Sinica 2020年第5期39卷 133-144页

作者： Jiangong wei Tingting Wu Xiguang deng Zongze yu Lifeng Wang Gas Hydrate Engineering and Technology Center Guangzhou Marine Geological SurveyGuangzhou 510075China MLR Key Laboratory of Marine Mineral Resources Guangzhou Marine Geological SurveyGuangzhou 510075China

The amount of methane leaked from deep sea cold seeps is enormous and potentially affects the global warming,ocean acidification and global carbon *** is of great significance to study the methane bubble movement and dissolution process in the water column and its output to the *** bubbles produce strong acoustic impedance in water bodies,and bubble strings released from deep sea cold seeps are called"gas flares"which expressed as flame-like strong backscatter in the water *** characterized the morphology and movement of methane bubbles released into the water using multibeam water column data at two cold *** result shows that methane at site I reached 920 m water depth without passing through the top of the gas hydrate stability zone(GHSZ,850 m),while methane bubbles at site II passed through the top of the GHSZ(597 m)and entered the non-GHSZ(above 550 m).By applying two methods on the multibeam data,the bubble rising velocity in the water column at sites I and II were estimated to be 9.6 cm/s and 24 cm/s,*** velocity is positively associated with water depth which is inferred to be resulted from decrease of bubble size during methane ascending in the *** with numerical simulation,we concluded that formation of gas hydrate shells plays an important role in helping methane bubbles entering the upper water bodies,while other factors,including water depth,bubble velocity,initial kinetic energy and bubble size,also influence the bubble residence time in the water and the possibility of methane entering the *** estimate that methane gas flux at these two sites is 0.4×10~6–87.6×10~6 mol/a which is extremely small compared to the total amount of methane in the ocean body,however,methane leakage might exert significant impact on the ocean acidification considering the widespread distributed cold *** addition,although methane entering the atmosphere is not observed,further research is still needed to

关键词： gas bubble methane cold seep Nigerian Continental Margin Greenhouse effect Makran accretion wedge

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Spatio-temporal characteristics of population and economy in transitional geographic space at the southern end of"Hu Huan-yong Line"

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Journal of Mountain Science 2022年第2期19卷 350-364页

作者： deng wei CHENG yu-fang yu Huan PENG Li KONG Bo HOU yu-ting School of Geography and Resource Science Sichuan Normal UniversityChengdu 610066China School of Earth Sciences Chengdu University of TechnologyChengdu 610059China Institute of Mountain Hazards and Environment Chinese Academy of SciencesChengdu 610041China Institute of Aerospace Information Innovation Chinese Academy of SciencesBeijing 100094China

"Hu Huan-yong Line(Hu Line)"depicts a geographical pattern of China’s population *** essence is the regionality of humanland relationship and reflects basic characteristics and laws of human beings’adaptation to the natural *** the development of the times and the progress of modern science and technology,especially the rapid urbanization and construction of transportation network system in China,the connection between economic and geographical space has been continuously *** geographical transition zones from mountain areas to plains,i.e.,transitional geographical space,have promoted the changes in human-land relationships through population migration and *** Sichuan-yunnan provinces at the southern end of Hu Line as study area,this study analyzed the spatial correlation between population distribution and economy in this region,explored the pattern of geographical agglomeration and deagglomeration,and explained the changing characteristics of humanland relationship in transitional geographic space using global Moran’s I index,global regression model(GRM)and geographically weighted regression(GWR).The results show that population and Gross Domestic Product(GDP)have significant spatial dependence to this region,with obvious aggregation in geographical distribution and positive autocorrelation;comparing with the general least square model,the GWR model incorporating spatial effect was more suitable for revealing the distribution characteristics of geographical elements,with fine results and better fitting;the spatial model of population and GDP as well as the spatio-temporal evolution model of their changes,all of them strongly indicated that Normalized Difference Vegetation Index(NDVI)and road density were important factors governing the spatial differentiation of population and economy;under the rapid development of regional economy and continuous evolution of urban-rural relations,rural transformation and spa

关键词： Hu Huan-yong Line Spatial correlation Geographically weighted regression Population distribution Transitional geographic space

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Recent development and application of thin-film thermoelectric cooler

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Frontiers of Chemical Science and Engineering 2020年第4期14卷 492-503页

作者： yuedong yu wei Zhu Xixia Kong Yaling Wang Pengcheng Zhu yuan deng School of Materials Science and Engineering Beihang UniversityBeijing 100083China Beijing Advanced Innovation Center for Biomedical Engineering Beihang UniversityBeijing 100083China

Recently,the performance and fabrication of thin-ilm thermoeletric materials have been jargely *** on this enhancement,the thin-film thermoelectric cooler(TEC)is becoming a research hot topic,due to its high cooling flux and microchip level *** fulfill a thin-film TEC,interfacial problems are unavoidable,as they may largely reduce the properties of a thin-film ***,the architecture of a thin-film TEC should also be properly *** this review,we introduced the enhancement of thermoelectric properties of(Bi,Sb)2(Te,Se)3 solid solution materials by chemical vapor deposition,physical vapor deposition and ***,the interfacial problems,including contact resistance,interfacial diffusion and thermal contact resistance,were ***,the design,fabrication,as well as the performance of thin-film TECs were summarized.

关键词： thin-film thermoelectric cooler interfaces cooling flux TE device fabrication

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Sandwich-Like Fe&TiO2@C Nanocomposites Derived from MXene/Fe-MOFs Hybrids for Electromagnetic Absorption

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Nano-Micro Letters 2020年第4期12卷 121-136页

作者： Baiwen deng Zhen Xiang Juan Xiong Zhicheng Liu Lunzhou yu wei Lu Shanghai Key Lab.of D&A for Metal‑Functional Materials School of Materials Science&EngineeringTongji UniversityShanghai 201804People’s Republic of China School of Materials Science&Engineering University of Shanghai for Science and TechnologyShanghai 200092People’s Republic of China

Electromagnetic pollution has been causing a series of problems in people’s life,and electromagnetic absorbers with lightweight and broad absorbing bandwidth properties are widely *** this work,novel sandwich-like 2D laminated Fe&TiO2 nanoparticles@C nanocomposites were rationally designed and successfully developed from the MXene–MOFs *** formation of Fe and rutile-TiO2 nanoparticles sandwiched by the two-dimensional carbon nanosheets provided strong electromagnetic energy attenuation and good impedance matching for electromagnetic wave(EMW)*** expected,the nanocomposites achieved a broad effective absorption bandwidth of 6.5 GHz at a thickness of only 1.6 mm and the minimum reflection loss(RL)value of−51.8 dB at 6.6 GHz with a thickness of 3 *** work not only provides a good design and fabricating concept for the laminated metal and functional nanoparticles@C nanocomposites with good EMW absorption,but also offers an important guideline to fabricate various two-dimensional nanocomposites derived from the MXene precursors.

关键词： MXene Metal–organic frameworks Nanocomposites Electromagnetic wave absorption

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The diapycnal mixing in the upper Pacific estimated from GTSPP observations

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Acta Oceanologica Sinica 2016年第1期35卷 46-52页

作者： deng Zeng'an wei Guanghao yu Ting wei Hongyu KANG Linchong HAN Luyao School of Marine Science and Technology Tianjin University Tianjin 300172 China National Marine Data and Information Service Tianjin 300171 China

Diapycnal mixing （DM） in the upper 600 m of the Pacific Ocean was estimated based on the huge amount of the observations from Global Temperature-Salinity Profile Programme （GTSPP）, using the strain version of the finescale parameterization. It is found that DM in each season exhibits similar distribution pattern, but differs in details. The intensification of DM is related to bottom roughness, surface near-inertial energy, and proximity to the equator. The intensified DM caused by rough topography shows in the profiles near the Mendocino fracture zone in the northeast Pacific, and the heightened DM caused by wind-generated near-inertial energy appears in the westerly region of the Southern Ocean. As compared to previous estimates, the DM estimate in this work has better spatial coverage and finer resolution, and more importantly it contains the seasonal variability, Furthermore, the resulting DM dataset is gridded, rendering it suitable for modeling applications.

关键词： diapycnal mixing GTSPP fine-scale parameterization Pacific

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