检索结果-南通市图书馆

Effects of herbicide butachlor application on the growth of periphytic biofilms and nitrogen loss in paddy systems

Pedosphere 2024年第1期34卷 211-221页

作者： Yanhui ZHAO Mingjun LEI Liandong jing fan XIA Meixia YAN Jiantong LIU Yonghong WU Yunli WU Chenxi WU Ecology and Environment Monitoring and Scientific Research Center Yangtze Basin Ecology and Environment AdministrationMinistry of Ecological and EnvironmentWuhan 430010China College of Chemistry and Environmental Protection Engineering Southwest Minzu UniversityChengdu 610041China State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyChinese Academy of SciencesWuhan 430072China State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil SciencesChinese Academy of SciencesNanjing 210008China

The application of butachlor as an herbicide in paddy fields is widely practiced,aiming to increase rice yield by directly or indirectly influencing the paddy *** biofilms,which form at the soil-water interface in paddy fields,are complex bioaggregates that play an important role in nitrogen (N) *** objective of this study was to investigate the effect of butachlor on periphytic biofilm growth and N cycling under both light and dark conditions in the *** results revealed that butachlor application hindered the growth of periphytic biofilms and led to the dominance of Cyanobacteria as the primary prokaryotes,while inhibiting the development of eukaryotic ***,the application of butachlor reduced the richness and diversity of prokaryotes,but increased those of eukaryotes in periphytic *** light treatments exhibited higher total N loss because light favored periphytic biofilm growth and enhanced ammonium (NH_(4)^(+)) assimilation and ***,butachlor application resulted in the increased retention of NH_(4)^(+)-N and nitrate (NO_(3)^(-))-N and an increase in N loss via *** abundances of functional genes encoding enzymes such as ammonia monooxygenase,nitrite reductase,and nitrous oxide reductase were increased by butachlor application,favoring nitrification and denitrification ***,the results suggest that butachlor application leads to an increase in total N loss mainly through denitrification in paddy systems,particularly in the presence of periphytic ***,the results may provide valuable insights into the changes in periphytic biofilm growth and N cycling induced by butachlor,and future studies can further explore the potential implications of these changes in paddy soils.

关键词： ammonia-oxidizing bacteria amoA denitrification denitrifying bacteria nirK nitrification nitrogen cycling nosZ volatilization

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Machine learning-based predictions of current and future susceptibility to retrogressive thaw slumps across the Northern Hemisphere

引用

Advances in Climate Change Research 2024年第2期15卷 253-264页

作者： jing LUO Guo-An YIN Fu-Jun NIU Tian-Chun DONG Ze-Yong GAO Ming-Hao LIU fan YU State Key Laboratory of Frozen Soil Engineering Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China China Railway Qinghai-Tibet Group Co. LtdXining 810000China University of Chinese Academy of Sciences Beijing 100049China

Retrogressive thaw slumps(RTSs)caused by the thawing of ground ice on permafrost slopes have dramatically increased and become a common permafrost hazard across the Northern Hemisphere during previous ***,a gap remains in our comprehensive understanding of the spatial controlling factors,including the climate and terrain,that are conducive to these RTSs at a global *** machine learning methodologies,we mapped the current and future RTSs susceptibility distributions by incorporating a range of environmental factors and RTSs *** identified freezing-degree days and maximum summer rainfall as the primary environmental factors affecting RTSs *** final ensemble susceptibility map suggests that regions with high to very high susceptibility could constitute(11.6±0.78)%of the Northern Hemisphere's permafrost *** juxtaposed with the current(2000-2020)RTSs susceptibility map,the total area with high to very high susceptibility could witness an increase ranging from(31.7±0.65)%(SSP585)to(51.9±0.73)%(SSP126)by the *** insights gleaned from this study not only offer valuable implications for engineering applications across the Northern Hemisphere,but also provide a long-term insight into the potential change of RTSs in permafrost regions in response to climate change.

关键词： Retrogressive thaw slump Machine learning Susceptibility map Permafrost Northern Hemisphere

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Artificial neural network-based method for discriminating Compton scattering events in high-purity germaniumγ-ray spectrometer

引用

Nuclear Science and Techniques 2024年第2期35卷 64-84页

作者： Chun-Di fan Guo-Qiang Zeng Hao-wen Deng Lei Yan Jian Yang Chuan-Hao Hu Song Qing Yang Hou College of Nuclear Technology and Automation Engineering Chengdu University of TechnologyChengdu 610059China

To detect radioactive substances with low activity levels,an anticoincidence detector and a high-purity germanium(HPGe)detector are typically used simultaneously to suppress Compton scattering background,thereby resulting in an extremely low detection limit and improving the measurement ***,the complex and expensive hardware required does not facilitate the application or promotion of this ***,a method is proposed in this study to discriminate the digital waveform of pulse signals output using an HPGe detector,whereby Compton scattering background is suppressed and a low minimum detectable activity(MDA)is achieved without using an expensive and complex anticoincidence detector and *** electric-field-strength and energy-deposition distributions of the detector are simulated to determine the relationship between pulse shape and energy-deposition location,as well as the characteristics of energy-deposition distributions for fulland partial-energy deposition *** relationship is used to develop a pulse-shape-discrimination algorithm based on an artificial neural network for pulse-feature *** accurately determine the relationship between the deposited energy of gamma(γ)rays in the detector and the deposition location,we extract four shape parameters from the pulse signals output by the *** learning is used to input the four shape parameters into the ***,the pulse signals are identified and classified to discriminate between partial-and full-energy deposition *** partial-energy deposition events are removed to suppress Compton *** proposed method effectively decreases the MDA of an HPGeγ-energy dispersive *** results show that the Compton suppression factors for energy spectra obtained from measurements on ^(152)Eu,^(137)Cs,and ^(60)Co radioactive sources are 1.13(344 keV),1.11(662 keV),and 1.08(1332 keV),respectively,and that the corresponding MDAs are 1.4%,5.

关键词： High-purity germaniumγ-ray spectrometer Pulse-shape discrimination Compton scattering Artificial neural network Minimum detectable activity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Machine learning in predicting postoperative complications in Crohn’s disease

引用

World Journal of Gastrointestinal Surgery 2024年第8期16卷 2745-2747页

作者： Li-fan Zhang Liu-Xiang Chen wen-Juan Yang Bing Hu Department of Gastroenterology and Hepatology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Digestive Endoscopy Medical Engineering Research Laboratory West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

Crohn's disease(CD)is a chronic inflammatory bowel disease of unknown origin that can cause significant disability and morbidity with its *** to the unique nature of CD,surgery is often necessary for many patients during their lifetime,and the incidence of postoperative complications is high,which can affect the prognosis of ***,it is essential to identify and manage post-operative *** learning(ML)has become increasingly im-portant in the medical field,and ML-based models can be used to predict post-operative complications of intestinal resection for ***,a valuable article titled“Predicting short-term major postoperative complications in intestinal resection for Crohn's disease:A machine learning-based study”was published by Wang et *** appreciate the authors'creative work,and we are willing to share our views and discuss them with the authors.

关键词： Crohn’s disease Intestinal resection Postoperative complications Machine learning Explainability

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Local coordination and electronic interactions of Pd/MXene via dual‐atom codoping with superior durability for efficient electrocatalytic ethanol oxidation

引用

Carbon Energy 2024年第8期6卷 166-177页

作者： Zhangxin Chen fan jing Minghui Luo Xiaohui Wu Haichang Fu Shengwei Xiao Binbin Yu Dan Chen Xianqiang Xiong Yanxian Jin School of Pharmaceutical and Chemical Engineering Taizhou UniversityTaizhouZhejiangChina School of Sciences Zhejiang Sci‐Tech UniversityHangzhouZhejiangChina

Catalyst design relies heavily on electronic metal‐support interactions,but the metal‐support interface with an uncontrollable electronic or coordination environment makes it ***,we outline a promising approach for the rational design of catalysts involving heteroatoms as anchors for Pd nanoparticles for ethanol oxidation reaction(EOR)*** doped B and N atoms from dimethylamine borane(DB)occupy the position of the Ti_(3)C_(2)lattice to anchor the supported Pd *** electrons transfer from the support to B atoms,and then to the metal Pd to form a stable electronic center.A strong electronic interaction can be produced and the d‐band center can be shifted down,driving Pd into the dominant metallic state and making Pd nanoparticles deposit uniformly on the ***‐obtained Pd/DB–Ti_(3)C_(2)exhibits superior durability to its counterpart(∼14.6%retention)with 91.1%retention after 2000 cycles,placing it among the top single metal anodic ***,in situ Raman and density functional theory computations confirm that Pd/DB–Ti_(3)C_(2)is capable of dehydrogenating ethanol at low reaction energies.

关键词： durability electronic interactions ethanol oxidation heteroatom codoping Pd/MXene

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Superhydrophobic melamine sponge prepared by radiation-induced grafting technology for efficient oil-water separation

引用

Nuclear Science and Techniques 2024年第9期35卷 103-114页

作者： Ying Sun wen-Rui Wang Dan-Yi Li Si-Yi Xu Lin Lin Man-Li Lu Kai fan Chen-Yang Xing Lin-fan Li Ji-Hao Li Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China School of Architecture and Materials Chongqing College of Electronic EngineeringChongqing 401331China Center for Stretchable Electronics and NanoSensors Key Laboratory of Optoelectronic Devices and Systems of Ministry of EducationCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China

This paper presents a superhydrophobic melamine(ME)sponge(ME-g-PLMA)prepared via high-energy radiation-induced in situ covalent grafting of long-alkyl-chain dodecyl methacrylate(LMA)onto an ME sponge for efficient oil–water *** obtained ME-g-PLMA sponge had an excellent pore structure with superhydrophobic(water contact angle of 154°)and superoleophilic *** can absorb various types of oils up to 66–168 times its *** ME-g-PLMA sponge can continuously separate oil slicks in water by connecting a pump or separating oil underwater with a gravity-driven *** addition,it maintained its highly hydrophobic properties even after long-term immersion in different corrosive solutions and repeated oil *** modified ME-g-PLMA sponge exhibited excellent separation properties and potential for oil spill cleanup.

关键词： Radiation-induced graft polymerization Oil–water separation Sponge Superhydrophobic

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effects of ulinastatin combined with dexmedetomidine on cognitive dysfunction and emergence agitation in elderly patients who underwent total hip arthroplasty

引用

World Journal of Psychiatry 2024年第1期14卷 26-35页

作者： Qi-fan Huo Li-Juan Zhu Jian-Wei Guo Yan-An Jiang jing Zhao Department of Anesthesiology Shaanxi Provincial People’s HospitalXi’an 710068Shaanxi ProvinceChina

BACKGROUND With the continuous growth of the modern elderly population,the risk of fracture *** fracture is a common type of fracture in older *** hip arthroplasty(THA)has significant advantages in relieving chronic pain and promoting the recovery of hip joint *** To investigate the effect of ulinastatin combined with dexmedetomidine(Dex)on the incidences of postoperative cognitive dysfunction(POCD)and emergence agitation in elderly patients who underwent *** A total of 397 patients who underwent THA from February 2019 to August *** conducted a three-year retrospective cohort study in Shaanxi Provincial People’s *** demographic data were obtained from the electronic medical record *** collected preoperative,intraoperative,and postoperative *** hundred twenty-nine patients who were administered Dex during the operation were included in the Dex *** hundred fifty patients who were intravenously injected with ulinastatin 15 min before anesthesia induction were included in the ulinastatin *** hundred eighteen patients who were administered ulinastatin combined with Dex during the operation were included in the Dex+ulinastatin *** patients’perioperative conditions,hemodynamic indexes,postoperative Mini-Mental State Examination(MMSE)scores,Ramsay score,incidence of POCD,and serum inflammatory cytokines were *** There was a significant difference in the 24 h visual analogue scale score among the three groups,and the score in the Dex+ulinastatin group was the lowest(P<0.05).Compared with the Dex and ulinastatin group,the MMSE scores of the Dex+ulinastatin group were significantly increased at 1 and 7 d after the operation(all P<0.05).Compared with those in the Dex and ulinastatin groups,incidence of POCD,levels of serum inflammatory cytokines in the Dex+ulinastatin group were significantly decreased at 1 and 7 d after the operation(all P<0.05).The observer’s assessment of th

关键词： Ulinastatin Dexmedetomidine Postoperative cognitive dysfunction Inflammatory cytokines Total hip arthroplasty

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Synergism of solar-driven interfacial evaporation and photo-Fenton Cr(Ⅵ) reduction by sustainable Bi-MOF-based evaporator from waste polyester

引用

Journal of Energy Chemistry 2024年第7期94卷 527-540页

作者： Zifen fan Jie Liu Huajian Liu Lijie Liu Yan She Xueying wen Huiyue Wang Guixin Hu Ran Niu Jiang Gong Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSemiconductor Chemistry CenterSchool of Chemistry and Chemical EngineeringHuazhong University of Science andTechnologyWuhan430074HubeiChina

The integration of interfacial solar steam generation and photocatalytic degradation technology has pro-vided a promising platform to simultaneously produce freshwater and degrade ***,con-structing low-cost,multi-functional evaporators for treating Cr(Ⅵ)-polluted water remains challenging,and the synergistic mechanism on Cr(Ⅵ)reduction is ***,we propose the combined strategy of ball milling and solution mixing for the sustainable production of Bi-MOF microrod from waste poly(ethylene terephthalate),and construct Bi-MOF-based solar evaporators for simultaneous photo-Fenton Cr(Ⅵ)reduction and freshwater ***,the evaporator comprised of Bi-MOF microrod and graphene nanosheet possesses high light absorption,efficient photothermal conversion,and good hydro-philic *** to the advantages,the hybrid evaporator exhibits the evaporation rate of 2.16 kg m^(-2) h^(-1) and evaporation efficiency of 87.5%under 1 kW m^(-2) of *** integrating with photo-Fenton reaction,the Cr(Ⅵ)reduction efficiency is 91.3%,along with the reaction kinetics of 0.0548 min^(-1),surpassing many advanced *** the outdoor freshwater production and Cr(Ⅵ)reduction,the daily accumulative water yield is 5.17 kg m^(-2) h^(-1),and the Cr(Ⅵ)reduction efficiency is 99.9%.Furthermore,we prove that the localization effect derived from the interfacial solar-driven evap-oration enhances H_(2)O_(2) activation for the photo-Fenton reduction of Cr(Ⅵ).Based on the result of density functional theory,Bi-MOF microrod provides rich active centers for H_(2)O_(2) activation to produce active sites such as e-or-O_(2).This study not only proposes a new strategy to construct multi-functional solar evaporators for freshwater production and catalytic reduction of pollutants,but also advances the chem-ical upcycling of waste polyesters.

关键词： Interfacial solar steam generation Cr(VI)reduction Photo-Fenton reaction Metal-organic framework Waste plastic upcycling

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The trxG protein ULT1 regulates Arabidopsis organ size by interacting with TCP14/15 to antagonize the LIM peptidase DA1 for H3K4me3 on target genes

引用

Plant Communications 2024年第4期5卷 255-274页

作者： fan Xu Huixue Dong Weijun Guo Liang Le Yexing jing Jennifer C.Fletcher Jiaqiang Sun Li Pu Biotechnology Research Institute Chinese Academy of Agricultural SciencesBeijing 100081China State Key Laboratory of Crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Department of Plant and Microbial Biology University of CaliforniaBerkeleyBerkeleyCA 94720USA Plant Gene Expression Center United States Department of Agriculture-Agricultural Research ServiceAlbanyCA 94710USA These authors contributed equally to this article

Plant organ size is an important agronomic trait that makes a significant contribution to plant *** its central importance,the genetic and molecular mechanisms underlying organ size control remain to be fully ***,we report that the trithorax group protein ULTRAPETALA1(ULT1)interacts with the TEOSINTE BRANCHED1/CYCLOIDEA/PCF14/15(TCP14/15)transcription factors by antagonizing the LIN-11,ISL-1,and MEC-3(LIM)peptidase DA1,thereby regulating organ size in *** of ULT1 function significantly increases rosette leaf,petal,silique,and seed size,whereas overexpression of ULT1 results in reduced organ ***1 associates with TCP14 and TCP15 to co-regulate cell size by affecting cellular *** analysis revealed that ULT1 and TCP14/15 regulate common target genes involved in endoreduplication and leaf ***1 can be recruited by TCP14/15 to promote lysine 4 of histone H3 trimethylation at target genes,activating their expression to determinefinal cell ***,we found that ULT1 influences the interaction of DA1 and TCP14/15 and antagonizes the effect of DA1 on TCP14/15 ***,ourfindings reveal a novel epigenetic mechanism underlying the regulation of organ size in Arabidopsis.

关键词： ULT1 TCP DA1 organ size endoreduplication

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Mice with type I interferon signaling deficiency are prone to epilepsy upon HSV-1 infection

引用

Virologica Sinica 2024年第2期39卷 251-263页

作者： Wei Yang Chong-Yang Tang Dong-Ying fan Yi-Song Wang Pei-Gang Wang jing An Guo-Ming Luan Beijing Key Laboratory of Epilepsy Sanbo Brain HospitalCapital Medical UniversityBeijing100093China Beijing Institute for Brain Disorders Capital Medical UniversityBeijing100093China Department of Neurosurgery Epilepsy CenterSanbo Brain HospitalCapital Medical UniversityBeijing100093China Department of Microbiology School of Basic Medical SciencesCapital Medical UniversityBeijing100069China Chinese Institute for Brain Research Beijing102206China

Viral encephalitis continues to be a significant public health *** our previous study,we discovered a lower expression of antiviral factors,such as IFN-β,STING and IFI16,in the brain tissues of patients with Rasmussen's encephalitis(RE),a rare chronic neurological disorder often occurred in children,characterized by unihemispheric brain ***,a higher cumulative viral score of human herpes viruses(HHVs)was also found to have a significant positive correlation with the unihemispheric atrophy in *** I IFNs(IFN-I)signaling is essential for innate anti-infection response by binding to IFN-α/βreceptor(IFNAR).In this study,we infected WT mice and IFNAR-deficient A6 mice with herpes simplex virus 1(HSV-1)via periocular injection to investigate the relationship between IFN-I signaling and HHVs-induced brain *** all mice exhibited typical viral encephalitis lesions in their brains,HSV-induced epilepsy was only observed in A6 *** gene expression matrix,functional enrichment analysis and protein-protein interaction network revealed four gene models that were positively related with HSV-induced ***,ten key genes with the highest scores were *** together,these findings indicate that intact IFN-I signaling can effectively limit HHVs induced neural symptoms and brain lesions,thereby confirming the positive correlation between IFN-I signaling repression and brain atrophy in RE and other HHVs encephalitis.

关键词： IFN-I signaling Human herpes viruses(HHVs) Rasmussen's encephalitis(RE)

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：