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Construction of multifunctional lanthanum manganese mixed nanoparticles mediated by ionic liquids for selective aerobic oxidation of cyclohexane

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Rare Metals 2024年第5期43卷 2205-2221页

作者： Hao Li Rui-Rui Zhang Ke-Xin Li Shuang Wei yu-mei Liu Rui-xia Liu Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Selective oxidation of alkanes to produce highvalue chemicals is an essential strategy and means to realize efficient utilization of *** this work,a strategy of lanthanum manganese mixed metal oxides(LMMO)regulated via a facile ionic liquid(IL)-assisted hydrothermal method was proposed to construct the multifunctional catalysts,which exhibited excellent catalytic performance in the selective aerobic oxidation of *** 8.9%cyclohexane conversion with 90%KA oi(cyclohexanol and cyclohexanone)selectivity was achieved over the optimal LMMO catalyst under mild *** effects of anion type,carbon chain length and concentration of ILs on the structure and properties of catalysts were investigated through various characterizations,indicating the structure-directing and template effect of ILs on the multifunctional *** formation of self-assembled spherical nanoparticles followed the"dissolution-nucleation-proliferation"mechanism with the introduction of 1-butyl-3-methylimidazolium hydrogen sulfate,ascribing the synergistic effect between the microenvironment of ILs and the hydrothermal ***,the high reactive oxygen concentration redox capacity,and suitable basic sites of LMMO catalysts mediated by ILs enhance the activation of C-H bonds and molecular oxygen,simultaneously influencing the adsorption and desorption of the substrate.A comprehensive understanding of the high KA oil selectivity and radical reaction mechanism was elucidated based on in situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS)and radical trapping *** recycling and regeneration experiments further illuminated that the removal of adsorbed cyclohexanone acting on the LMMO catalyst was the key to achieve high KA oil selectivity.

关键词： Ionic liquids Nanoparticle Multifunctional catalyst Cyclohexane oxidation

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高活性高含量微生物复合配方肥在蔬菜上的应用效果

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湖北农业科学 2024年第10期63卷 14-18页

作者：陈添刘德锐刘祖锋翟豪强梅余霞梁运祥华中农业大学资源与环境学院武汉430070 华中农业大学生命科学技术学院武汉430070 湖北佳玛驰生态农业有限公司湖北宜昌443200 湖北宜施壮农业科技有限公司湖北宜昌443200

采用微生物保护剂包裹菌剂后添加至高养分复合肥的生产技术生产高活性高含量微生物复合配方肥,通过田间试验,研究其对辣椒(Capsicum annuum L.)、番茄(Solanum lycopersicum L.)生长发育、养分吸收及品质的影响。结果表明,在养分含量为... 详细信息

采用微生物保护剂包裹菌剂后添加至高养分复合肥的生产技术生产高活性高含量微生物复合配方肥,通过田间试验,研究其对辣椒(Capsicum annuum L.)、番茄(Solanum lycopersicum L.)生长发育、养分吸收及品质的影响。结果表明,在养分含量为40%的条件下造粒后,微生物有效活菌数可达7.21×10^(9)CFU/g,储存半年后存活率为91.67%;高活性高含量微生物复合配方肥可以显著促进蔬菜生长,提高果实品质和产量。与蔬菜专用配方肥和常规施肥相比,高活性高含量微生物复合配方肥施用于辣椒分别增产8.09%和14.14%,施用于番茄分别增产11.00%和14.44%。综上,添加保护剂的高活性高含量微生物复合配方肥可以有效提高蔬菜果实的品质,增产增收,提高农户经济收益。

关键词：微生物菌剂高活性高养分含量复合肥蔬菜产量品质

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Helicobacter pylori infection alters gastric microbiota structure and biological functions in patients with gastric ulcer or duodenal ulcer

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World Journal of Gastroenterology 2024年第24期30卷 3076-3085页

作者： Ling-xiao Jin yu-Peng Fang Chen-mei xia Teng-Wei Cai Qian-Qian Li yu-Yin Wang Hai-Fan Yan xia Chen Department of Gastroenterology Wenling Hospital of Wenzhou Medical University(The First People’s Hospital of Wenling)Wenling 317500Zhejiang ProvinceChina

BACKGROUND Helicobacter pylori(***)infection is closely associated with gastrointestinal *** preliminary studies have indicated that *** infection had a significant impact on the mucosal microbiome structure in patients with gastric ulcer(GU)or duodenal ulcer(DU).AIM To investigate the contributions of *** infection and the mucosal microbiome to the pathogenesis and progression of ulcerative *** Patients with *** infection and either GU or DU,and healthy individuals without *** infection were *** or duodenal mucosal samples was obtained and subjected to metagenomic *** compositions of the microbial communities and their metabolic functions in the mucosal tissues were *** Compared with that in the healthy individuals,the gastric mucosal microbiota in the ***-positive patients with GU was dominated by ***,with signi-ficantly reduced *** intergroup differential functions,which were enriched in the ***-positive GU patients,were all derived from ***,particularly those concerning transfer RNA queuosine-modification and the synthesis of demethylmenaquinones or menaquinones.A significant enrichment of the uibE gene was detected in the synthesis *** was no significant difference in microbial diversity between the ***-positive DU patients and healthy *** *** infection significantly alters the gastric microbiota structure,diversity,and biological functions,which may be important contributing factors for GU.

关键词： Helicobacter pylori Gastric ulcer Duodenal ulcer Metagenomic sequencing Transfer RNA queuosine-modification Menaquinones

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Type I interferon pathway in pediatric systemic lupus erythematosus

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World Journal of Pediatrics 2024年第7期20卷 653-668页

作者： yu Zhou Hong‑mei Song Department of Pediatrics Peking Union Medical College HospitalChinese Academy of Medical SciencesBeijingChina State Key Laboratory of Complex Severe and Rare Diseases Peking Union Medical College HospitalBeijingChina

Background The role of type I interferon(IFN-I)signaling in systemic lupus erythematosus(SLE)has been well ***,unanswered questions remain regarding the applicability of these findings to pediatric-onset *** aim of this review is to provide an overview of the novel discoveries on IFN-I signaling in pediatric-onset *** sources A literature search was conducted in the PubMed database using the following keywords:“pediatric systemic lupus erythematosus”and“type I interferon”.Results IFN-I signaling is increased in pediatric SLE,largely due to the presence of plasmacytoid dendritic cells and pathways such as cyclic GMP-AMP synthase–stimulator of interferon genes–TANK-binding kinase 1 and Toll-like receptor(TLR)4/*** extracellular traps and oxidative DNA damage further stimulate IFN-I *** variants in IFN-I-related genes,such as IFN-regulatory factor 5 and tyrosine kinase 2,are linked to SLE susceptibility in pediatric *** addition,type I interferonopathies,characterized by sustained IFN-I activation,can mimic SLE symptoms and are thus important to *** on interferonopathies also contribute to exploring the pathogenesis of *** IFN-I activation is crucial for SLE diagnosis and *** IFNstimulated gene expression and serum IFN-α2 levels are common *** cytometry markers such as CD169 and galectin-9 are promising ***-IFN therapies,such as sifalimumab and anifrolumab,show promise in adult patients with SLE,but their efficacy in pediatric patients requires further *** kinase inhibitors are another treatment option for severe pediatric SLE *** This review presents an overview of the IFN-I pathway in pediatric *** the intricate relationship between IFN-I and pediatric SLE may help to identify potential diagnostic markers and targeted therapies,paving the way for improved patient care and outcomes.

关键词： Interferonopathies Pediatric systemic lupus erythematosus Type I interferon

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Adiposity in Chinese people with type 1 diabetes

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World Journal of Diabetes 2024年第7期15卷 1404-1408页

作者： Nian-Wei Wu xia-Fei Lyu Zhen-mei An She-yu Li Department of Endocrinology and Metabolism West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Radiology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Guideline and Rapid Recommendation Chinese Evidence-based Medicine CenterCochrane China Center and MAGIC China CenterWest China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

Adiposity,synonymous with obesity,is prevalent among both children and adults with type 1 diabetes in *** literature underscored the pathophysiological and socioeconomic factors associated with adiposity,and consistently highlighted its impact on cardiovascular,kidney,and metabolic diseases among Chinese individuals with type 1 *** and managing adiposity in individuals with type 1 diabetes are complicated and entail comprehensive approaches including lifestyle modifications,cognitive-behavioral therapy,insulin dose titration,and other diabetes treatment *** condition calls for coordination among policymakers,researchers,clinicians,and patients.

关键词： Type 1 diabetes China Metabolic syndrome Obesity Anti-obesity medications

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On Stability Discrimination of Limit Cycles for Piecewise Smooth Systems

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Acta Mathematica Sinica,English Series 2024年第7期40卷 1785-1803页

作者： Mao An HAN xia yu ZHOU School of Mathematical Sciences Zhejiang Normal UniversityJinhua321004P.R.China

This paper is concerned with the problem of stability discrimination of limit cycles for piecewise smooth *** first establish the Poincaré map near a periodic orbit,and deduce the first order derivative of the map for general piecewise smooth systems on the ***,we obtain a sufficient condition for determining the stability of limit cycles for these systems.

关键词： Piecewise smooth system limit cycle stability

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Recent progress of in-situ characterization of LiNi_(1−x−y)Co_(x)Mn_(y)O_(2) cathodes for lithium metal batteries: A mini review

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Nano Research 2024年第3期17卷 1384-1401页

作者： Huanzhu Lv xiaoqi Zhu Jun mei yuanhua xia Bin Wang Institute of Fundamental and Frontier Science University of Electronic Science and Technology of ChinaChengdu 611731China Chengdu Development Center of Science and Technology China Academy of Engineering PhysicsChengdu 610200China Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics(CAEP)Mianyang 621999China

In the context of the gradual popularity of electric vehicles(EVs),the development of lithium battery systems with high energy density and power density is regarded as the foremost way to improve the range of ***_(1-x-y)Co_(x)Mn_(y)O_(2)(NCM)cathodes have been the focus of researchers due to their high energy density,excellent power performance,and low-temperature ***,the elaboration of the decay mechanism of NCM cathode based on lithium metal batteries(LMBs)is still being restricted to the primary *** the past decades,the development and application of advanced in-situ characterization tools have facilitated researchers'understanding of the internal operation mechanism of batteries during charging and *** this minireview,the latest progress of in-situ observation of the NCM cathode by X-ray diffraction(XRD),fourier transform infrared(FT-IR)spectroscopy,Raman spectroscopy,atomic force microscopy(AFM),transmission electron microscope(TEM),optical microscope,and other characterization tools is *** mechanisms of structural degradation,cathode-electrolyte interfaces(CEIs)composition,and dynamic changes of NCM,electrolyte breakdown,and gas production are ***,based on the existing research progress,the opportunities and challenges for future in-situ characterization technology in the study of the mechanism of LMBs are discussed in ***,the purpose of this minireview is to summarize recent work that focuses on the outstanding application of in-situ characterization techniques in the mechanistic study of LMBs,and pointing the way to the future development of high energy density and power density LMBs systems.

关键词： lithium metal batteries(LMBs) In-situ characterization LiNi_(1-x-y)Co_(x)Mn_(y)O_(2)(NCM)

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Three-dimensional topological crystalline insulator without spin-orbit coupling in nonsymmorphic photonic metacrystal

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Chinese Physics B 2024年第10期33卷 282-286页

作者： Zhide yu Lingbo xia School of Physics and Electronics Hunan UniversityChangsha 410082China

By including certain point group symmetry in the classification of band topology,Fu proposed a class of threedimensionaltopological crystalline insulators(TCIs)without spin-orbit coupling in *** Fu’s model,surface states(ifpresent)doubly degenerate atГandM when time-reversal and C4 symmetries are *** analogs of Fu’s modelwith surface states quadratically degenerate atM are widely studied,while surface states with quadratic degeneracy atГare rarely *** this study,we propose a three-dimensional TCI without spin-orbit coupling in a judiciously designednonsymmorphic photonic *** surface states of photonic TCIs exhibit quadratic band degeneracy in the(001)surface Brillouin zone(BZ)center(Гpoint).The gapless surface states and their quadratic dispersion are protected by C4and time-reversal symmetries,which correspond to the nontrivial band topology characterized by Z_(2)topological ***,the surface states along lines fromГto the(001)surface BZ boundary exhibit zigzag feature,which is interpretedfrom symmetry perspective by building composite operators constructed by the product of glide symmetries with *** metacrystal array surrounded with air possesses high order hinge states with electric fields highlylocalized at the hinge that may apply to optical *** gapless surface states and hinge states reside in a cleanfrequency *** topological surface states emerge at the boundary of the metacrystal and perfect electric conductor(PEC),which provide a pathway for topologically manipulating light propagation in photonic devices.

关键词： topological crystalline insulator nonsymmorphic photonic metacrystal

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Choroidal infarction after internal carotid artery stenting

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International Journal of Ophthalmology(English edition) 2024年第10期17卷 1960-1962页

作者： Li Zhang Jia-Wei Liu Sheng Gao Tian-yu Yang mei-xia Zhang West China Hospital Sichuan UniversityChengdu 610041Sichuan ProvinceChina

Dear Editor,We present a case of choroidal infarction along with retinal infarction after carotid artery stenting(CAS),which is a rare condition not reported in the *** has increasingly been accepted as the mainstay reconstruction method for carotid artery stenosis compared with carotid endarterectomy(CEA)due to no need for general anesthesia.

关键词： infarction carotid artery

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Evolution of inner wall wrinkle defects in the sinking zone of a thick-walled steel tube during radial forging

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Advances in Manufacturing 2024年第2期12卷 396-408页

作者： yu-Zhao Yang Cheng Xu Li-xia Fan School of Mechanical Engineering Nanjing University of Science and TechnologyNanjing210094People’s Republic of China

An axial wrinkle defect was observed in the inner wall of the sinking zone of a thick-wall steel tube processed by cold radial *** can evolve into *** present study focuses on the evolution of wrinkles and the effects of process parameters on them using a three-dimensional radial forging process finite element model,radial forging experiments,and surface morphology *** results indicated that the vertical section angle of the hammer die and the size of the tube blank significantly affect the evolution of *** height-to-width ratioλwas introduced to describe the morphology of *** had an approximately linear relationship with the radius reduction in the sinking *** was a linear correlation between the growth slope ofλand the axial to circumferential strain ratio|εr/εθ|,which can predict theλunder few process *** the 30SiMn2MoVA steel,at the junction of the forging and sinking zones,the threshold ofλof the wrinkle that can evolve into a fissure is approximately 1.123.

关键词： Radial forging Inner wall Wrinkle defects Evolution Sinking zone

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