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Acta Metallurgica Sinica(English Letters) 2024年第2期37卷 308-324页

作者： Gang Niu Rui Yuan R.D.k.Misra Na Gong Zhi-Hui Zhang Hao-Xiu chen Hui-Bin Wu cheng-Jia Shang Xin-Ping Mao collaborative Innovation center of Steel Technology University of Science and Technology BeijingBeijing100083China Laboratory for Excellence in Advanced Steel Research Department of MetallurgicalMaterials and Biomedical EngineeringUniversity of Texas at El PasoEl PasoTX79968USA Institute of Materials Research and Engineering Agency for ScienceTechnologyand ResearchSingapore138634Singapore Department of Materials Science and Engineering University of TorontoTorontoONM5S 3E4Canada

The corrosion behavior and mechanism of 3Ni weathering steel in a simulated oceanic atmospheric environment are investigated in order to comprehend the impacts of La,as determined through electrochemical analysis and rust layer *** results of this study demonstrate that the addition of La enhances the corrosion resistance of 3Ni weathering steel in the marine atmospheric environment,thereby reducing the corrosion rate and improving the protection of the rust *** influence of La on corrosion resistance can be attributed to two primary ***,La functions as a grain refiner,minimizing the potential difference of the micro-regions on the substrate surface,thereby significantly reducing the corrosion of bare steel in the marine ***,La inhibits the process of Fe_(3)O_(4) oxidation back toγ-FeOOH during corrosion at the local site,thus decreasing the formation ofγ-FeOOH and enhancing the charge transfer *** research work may serve as a reference for expanding the application of rare earth elements in the field of weathering steel.

关键词： Weathering steel Rare earth Rust layer corrosion behavior corrosion resistance

Outcome of cOVID-19 infection in patients on antihypertensives:A cross-sectional study

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World Journal of critical care Medicine 2024年第3期13卷 42-52页

作者： Sakthivadivel Varatharajan Gopal k Bohra Pradeep k Bhatia Satyendra khichar Mahadev Meena Naveenraj Palanisamy Archana Gaur Mahendra k Garg Department of General Medicine All India Institute of Medical Sciences-BibinagarHyderabad 508126TelanganaIndia Department of General Medicine All India Institute of Medical SciencesJodhpur 342005RajasthanIndia Department of Anaesthesiology and critical care All India Institute of Medical SciencesJodhpur 342005RajasthanIndia Department of General Medicine All India Institute of Medical SciencesBhopal 462020Madhya PradeshIndia Department of General Medicine ESIC Medical College&HospitalChennai 600021TamilnaduIndia Department of Physiology All India Institute of Medical Sciences-BibinagarHyderabad 508126TelanganaIndia Department of Endocrinology&Metabolism All India Institute of Medical SciencesJodhpur 342005RajasthanIndia

BAckGROUND Patients with coronavirus disease 2019(cOVID-19)infection frequently have hypertension as a co-morbidity,which is linked to adverse *** may affect the outcome of cOVID-19 *** To assess the effects of antihypertensive agents on the outcomes of cOVID-19 *** A total of 260 patients were included,and their demographic data and clinical profile were *** patients were categorized into nonhypertensive,angiotensin-converting enzyme inhibitor/angiotensin receptor blocker(AcEI/ARB),calcium channel blocker(ccB),a combination of AcEI/ARB and ccB,and beta-blocker ***,hematological,and inflammatory markers were *** severity of infection,intensive care unit(IcU)intervention,and outcome were *** The mean age of patients was approximately 60-years-old in all groups,except the nonhypertensive *** were predominant in all *** was the most common presenting *** respiratory distress syndrome was the most common complication,and was mostly found in the ccB *** cases,IcU intervention,and mortality were also higher in the ccB *** logistic regression analysis revealed that age,duration of antihypertensive therapy,erythrocyte sedimentation rate,high-sensitivity c-reactive protein,and interleukin 6 were significantly associated with *** duration of antihypertensive therapy exhibited a sensitivity of 70.8%and specificity of 55.7%,with a cut-off value of 4.5 years and an area under the curve of 0.670(0.574-0.767;95%confidence interval)for cOVID-19 *** The type of antihypertensive medication has no impact on the clinical sequence or mortality of patients with cOVID-19 ***,the duration of antihypertensive therapy is associated with poor outcomes.

关键词： Antihypertensive cOVID-19 Hypertension Mortality Outcome

*** model of riboflavin transporter deficiency(RTD)disorder reveals deficits in synaptic transmission and movement

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Genes & Diseases 2024年第4期11卷 120-123页

作者： Ramesh k.Narayanan Gonzalo Perez-siles kamila A.Marzec Alexandra Boyling Brent Neumann Manoj P.Menezes Marina L.kennerson Northcott Neuroscience Laboratory ANZAC Research Institute-Sydney Local Health DistrictSydneyNSW 2139Australia Sydney Medical School University of SydneySydneyNSw 2050Australia ANZAc Research Institute-Sydney Local Health District SydneyNSW 2139Australia Neuroscience Program Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental BiologyMonash UniversityMelbourneVictoria 3800Australia TY Nelson Department of Neurology and Neurosurgery and kids Neuroscience Children's Hospital at WestmeadWestmeadSydneyNSW2145Australia Paediatrics and child Health The University of SydneySydneySydneyNSW 2145Australia Molecular Medicine Laboratory Concord General Repatriation HospitalSydneyNSW 2139Australia

Riboflavin transporter deficiency(RTD),previously known as Brown-Vialetto-Van Laere syndrome,is a childhoodonset neurodegenerative disorder characterized by sensory and motor neuron degeneration causing ataxia,muscle weakness,optic atrophy,and respiratory *** in SLc52A2 and SLc52A3,solute carrier family members that encode riboflavin(RF)transporters RFVT2 and RFVT3,are known to cause RTD types 2 and 3,respectively.

关键词： RTD degeneration TD

Achieving strength–ductility synergy in novel paramagnetic Fe-based medium-entropy alloys through deep cryogenic deformation

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Rare Metals 2024年第9期43卷 4493-4507页

作者： Hu-Wen Ma Yan-chun Zhao Li Feng Tian-Zeng Liu Zhi-Qi Yu Bo Jin Wang-chun Duan Peter k.Liaw Dong Ma State key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals Lanzhou University of Technology Wenzhou Pump and Valve Engineering Research Institute Lanzhou University of Technology Iron and Steel Research Institute Jiuquan Iron and Steel Corporation Lanzhou Resources and Environment Voc-Tech University Department of Materials Science and Engineering The University of Tennessee Neutron Science center Songshan Lake Materials Laboratory

cryogenic pre-deformation treatment has been widely used to effectively improve the comprehensive mechanical properties of steels and novel metals. However,the dislocation evolution and phase transformation induced by different degrees of deep cryogenic deformation are not yet fully elucidated. In this study, the effects of multiple cryogenic pre-treatments on the mechanical properties and deformation mechanisms of a paramagnetic Fe63.3Mn14-Si9.1cr9.8c3.8medium-entropy alloy（MEA） were investigated, leading to the discovery of a pretreated MEA that exhibits exceptional mechanical properties, including a fracture strength of 3.0 GPa, plastic strain of 26.1% and work-hardening index of 0.57. In addition, X-ray diffraction（XRD） and transmission electron microscopy（TEM）analyses revealed that multiple cryogenic pre-deformation treatments significantly increased the dislocation density of the MEA(from 9 × 1015to 4 × 1016m-2after three pretreatments), along with a transition in the dislocation type from predominantly edge dislocations to mixed dislocations（including screw-and edge-type dislocations）. Notably, this pretreated MEA retained its paramagnetic properties（μrcture. Thermodynamic calculations showed that cryogenic pretreatment can significantly reduce the stacking fault energy of the MEA by a factor of approximately four(i.e., from 9.7 to2.6 m J·m-2), thereby activating the synergistic effects of transformation-induced plasticity, twinning-induced plasticity and dislocation strengthening mechanisms. These synergistic effects lead to simultaneous strength and ductility enhancement of the MEA.

关键词： Deep cryogenic transformation Dislocation evolution Iron-based medium-entropy alloys Phase transformation Stacking fault energy

SARS-coV-2 variants are associated with different clinical courses in children with MIS-c

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World Journal of Pediatrics 2024年第2期20卷 143-152页

作者： Andres F.Moreno Rojas Emelia Bainto Helen Harvey Adriana H.Tremoulet Jane c.Burns kirsten B.Dummer Department of Pediatrics Division of Pediatric CardiologyUniversity of California San Diegoand Rady Children’s Hospital3020 Children’s Way MC 5004San DiegoCA 92123USA kawasaki Disease Research center La JollaCAUSA Department of Pediatrics Division of Pediatric Critical CareUniversity of California San Diegoand Rady Children’s HospitalSan DiegoCAUSA Department of Pediatrics University of California San Diegoand Rady Children’s HospitalSan DiegoCAUSA

Background Recent infection with SARS‑coV-2 in children has been associated with multisystem inflammatory syndrome in children(MIS-c).SARS‑coV-2 has undergone different *** publications exist about specific variants and their correlation with the severity of *** This was a single-center,retrospective study including all patients admitted with MIS-c at Rady children’s Hospital-San Diego between May 2020 and March *** epidemiologic data,including viral genomic information,were obtained from public ***,clinical presentation,laboratory values,and outcomes were obtained from electronic medical *** The analysis included 104 pediatric *** MIS-c waves were *** variants in San Diego during the first wave included clades 20A to *** the second wave,there were variants from clades 20A to c,20G,21c(Epsilon),20I(Alpha),and 20J(Gamma).The third wave had Delta strains(clades 21A,21I,and 21J),and the fourth had Omicron variants(clades 21k,21L,and 22c).MIS-c presented with similar symptoms and laboratory findings across all *** patients were admitted to the pediatric intensive care unit(PIcU)(74%)and required inotropic support(63%)during the second *** of the patients required mechanical circulatory support,and only two required invasive ventilatory *** was no *** The various strains of SARS-coV-2 triggered MIS-c with differing severities,with the second wave having a more severe clinical *** the differences in disease severity across variants were due to changes in the virus or other factors remains unknown.

关键词： complications cOVID-19 MIS-c SARS-coV-2 variants

Temperature and structure measurements of heavy-ion-heated diamond using in situ X-ray diagnostics

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Matter and Radiation at Extremes 2024年第4期9卷 80-89页

作者： J.Lutgert P.Hesselbach M.Schorner V.Bagnoud R.Belikov P.Drechsel B.Heuser O.SHumphries P.katrik B.Lindqvist c.Qu R.Redmer D.Riley G.Schaumann S.Schumacher A.Tauschwitz D.Varentsov k.Weyrich X.Yu B.Zielbauer Zs.Major P.Neumayer D.kraus Institut fur Physik Universitat RostockAlbert-Einstein-Str.2318059 RostockGermany GSI Helmholtzzentrum fur Schwerionenforschung Planckstr.164291 DarmstadtGermany Institut für Angewandte Physik Goethe-Universität Frankfurt am MainMax-von-Laue-Str.160438 Frankfurt am MainGermany Institut fur Geowissenschaften Goethe-Universitat Frankfurt am MainAltenhoferallee 160438 Frankfurt am MainGermany Helmholtz-Zentrum Dresden-Rossendorf Bautzner Landstr.40001328 DresdenGermany European XFEL GmbH Holzkoppel 422869 SchenefeldGermany centre for Plasma Physics School of Mathematics and PhysicsQueen’s University BelfastUniversity RoadBelfast BT71NNUnited Kingdom Institut für kernphysik Technische Universität DarmstadtSchlossgartenstr.964289 DarmstadtGermany State key Laboratory of Nuclear Physics and Technology Institute of Heavy Ion PhysicsPeking UniversityBeijing 100871China Helmholtz Institut Jena Frobelstieg 307743 JenaGermany

We present in situ measurements of spectrally resolved X-ray scattering and X-ray diffraction from monocrystalline diamond samples heatedwith an intense pulse of heavy *** this way,we determine the samples’heating dynamics and their microscopic and macroscopic structuralintegrity over a timespan of several *** the ratio of elastic to inelastic scattering with state-of-the-art density functionaltheory molecular dynamics simulations allows the inference of average temperatures around 1300 k,in agreement with predictions fromstopping power *** simultaneous diffraction measurements show no hints of any volumetric graphitization of the material,butdo indicate the onset of fracture in the diamond *** experiments pave the way for future studies at the Facility for Antiproton andIon Research,where a substantially increased intensity of the heavy ion beam will be available.

关键词： heated intense structure

The proximity between hydroxyl and single atom determines the catalytic reactivity of Rh1/ceO_(2) single-atom catalysts

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Nano Research 2024年第1期17卷 397-406页

作者： Danfeng Wu Shuyun Zhou congcong Du Juan Li Jianyu Huang Hong-xia Shen Abhaya k.Datye Shan Jiang Jeffrey T.Miller Sen Lin Haifeng Xiong State key Laboratory of Physical chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China State key Laboratory of Photocatalysis on Energy and Environment College of ChemistryFuzhou UniversityFuzhou 350002China clean Nano Energy center State Key Laboratory of Metastable Materials Science and TechnologyYanshan UniversityQinhuangdao 066004China college of Biology and chemical Engineering Jiaxing UniversityJiaxing 314000China Department of chemical&Biological Engineering University of New MexicoAlbuquerqueNM 8731-0001USA Davidson School of chemical Engineering Purdue UniversityWest LafayetteIN 47907-2100USA Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IkkEM) Xiamen 361102China Fujian key Laboratory of Rare-earth Functional Materials Fujian Shanhai Collaborative Innovation Center of Rare-earth Functional MaterialsLongyan 366300China

The local structure of the metal single-atom site is closely related to the catalytic activity of metal single-atom catalysts(SAcs).However,constructing SAcs with homogeneous metal active sites is a challenge due to the surface heterogeneity of the conventional ***,we prepared two Rh1/ceO_(2)SAcs(0.5Rh1/r-ceO_(2)and 0.5Rh1/c-ceO_(2),respectively)using two shaped ceO_(2)(rod and cube)exposing different facets,i.e.,ceO_(2)(111)and ceO_(2)(100).In cO oxidation reaction,the T100 of 0.5Rh1/r-ceO_(2)SAcs is 120°c,while the T100 of 0.5Rh1/c-ceO_(2)SAcs is as high as 200°*** in-situ cO diffuse reflectance infrared Fourier transform spectroscopy(cO-DRIFTS),we found that the proximity between OH group and Rh single atom on the plane surface plays an important role in the catalytic activity of Rh1/ceO_(2)SAc system in cO *** Rh single atom trapped at the ceO_(2)(111)crystal surface forms the Rh1(OH)adjacent species,which is not found on the ceO_(2)(100)crystal surface at room ***,during cO oxidation,the OH group far from Rh single atom on the 0.5Rh1/c-ceO_(2)disappears and forms Rh1(OH)adjacent species when the temperature is above 150°*** formation of Rh1(OH)adjacentcO intermediate in the reaction is pivotal for the excellent catalytic activity,which explains the difference in the catalytic activity of Rh single atoms on two different ceO_(2)*** formed Rh1(OH)adjacent-O-ce structure exhibits good stability in the reducing atmosphere,maintaining the Rh atomic dispersion after cO oxidation even when pre-reduced at high temperature of 500°*** functional theory(DFT)calculations validate the unique activity and reaction path of the intermediate Rh1(OH)adjacentcO species *** work demonstrates that the proximity between metal single atom and hydroxyl can determine the formation of active intermediates to affect the catalytic performances in catalysis.

关键词： crystal plane Rh1/ceO_(2)single-atom catalyst proximity of Rh and hydroxyl coordination structure cO oxidation

Metrology for sub-Rayleigh-length target positioning in ～1022W/cm2 laser-plasma experiments

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High Power Laser Science and Engineering 2024年第3期 95-110页

作者： E.A.Vishnyakov A.Sagisaka k.Ogura T.Zh.Esirkepov B.Gonzalez-Izquierdo c.D.Armstrong T.A.Pikuz S.A.Pikuz W.Yan T.M.Jeong S.Singh P.Hadjisolomou O.Finke G.M.Grittani M.Nevrkla c.M.Lazzarini A.Velyhan T.Hayakawa Y.Fukuda J.k.koga M.Ishino k.kondo Y.Miyasaka A.kon M.Nishikino Y.V.Nosach D.khikhlukha I.P.Tsygvintsev D.kumar J.Nejdl D.Margarone P.V.Sasorov S.Weber M.kando H.kiriyama Y.kato,G.korn k.kondo S.V.Bulanov T.kawachi A.S.Pirozhkov ELI Beamlines Facility The Extreme Light Infrastructure ERIC kansai Institute for Photon Science (kPSI) central Laser Facility Rutherford Appleton LaboratorySTFC Institute for Open and Transdisciplinary Research Initiatives Osaka University HB11 Energy Holdings key Laboratory for Laser Plasmas (Ministry of Education) School of Physics and AstronomyShanghai Jiao Tong University collaborative Innovation center of IFSA Shanghai Jiao Tong University Institute of Plasma Physics AScR FZU±Institute of Physics AScR czech Technical University in Prague Institute of Laser Engineering Osaka University Institute of Physics National Academy of Sciences of Ukraine ISTEQ AR

Tight focusing with very small f-numbers is necessary to achieve the highest at-focus ***,tight focusing imposes strong demands on precise target positioning in-focus to achieve the highest on-target irradiance We describe several near-infrared,visible,ultraviolet and soft and hard X-ray diagnostics employed in a～1022W/cm2laser±plasma *** used nearly 10 J total energy femtosecond laser pulses focused into an approximately1.3-μm focal spot on 5±20μm thick stainless-steel *** discuss the applicability of these diagnostics to determine the best in-focus target position with approximately 5μm accuracy （i.e.,around half of the short Rayleigh length）and show that several diagnostics （in particular,3ωreflection and on-axis hard X-rays） can ensure this *** demonstrated target positioning within several micrometers from the focus,ensuring over 80%of the ideal peak laser intensity *** approach is relatively fast （it requires 10±20 laser shots） and does not rely on the coincidence of low-power and high-power focal planes.

关键词：

Development of a multiplex polymerase chain reaction assay for detection of hepatitis c virus,hepatitis B virus,and human immunodeficiency virus 1

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World Journal of Virology 2024年第1期13卷 95-106页

作者： Waleed Abdelgaber Nemr Radwan k Nashwa Department of Radiation Microbiology National Center for Radiation Research and TechnologyEgyptian Atomic Energy AuthorityCairo 11371Egypt Department of Health Radiation Research National Center for Radiation Research and TechnologyEgyptian Atomic Energy AuthorityCairo 11371Egypt

BAckGROUND Hepatitis c virus(HcV),hepatitis B virus(HBV),and human immunodeficiency virus 1(HIV-1)are the most epidemic blood-borne viruses,posing threats to human health and causing economic losses to nations for combating the infection *** diagnostic methodologies that depend on the detection of viral nucleic acids are much more expensive,but they are more accurate than sero-logical *** To develop a rapid,cost-effective,and accurate diagnostic multiplex polymerase chain reaction(PcR)assay for simultaneous detection of HcV,HBV,and *** The design of the proposed PcR assay targets the amplification of a short conserved region featured with a distinguishable melting profile and electro-phoretic molecular weight inside each viral ***,this diagnostic method will be appropriate for application in both conventional(combined with electrophoresis)and real-time PcR *** in silico investigations were conducted to prove the capability of the approached PcR assay to detect variants of each ***,Egyptian isolates of each virus were subjected to the wet lab examination using the given diagnostic *** The in silico investigations confirmed that the PcR primers can match many viral variants in a multiplex PcR *** wet lab experiment proved the efficiency of the assay in distinguishing each viral type through high-resolution melting *** to related published assays,the proposed assay in the current study is more sensitive and competitive with many expensive PcR *** This study provides a simple,cost-effective,and sensitive diagnostic PcR assay facilitating the detection of the most epidemic blood-borne viruses;this makes the proposed assay promising to be substitutive for the mistakable and cheap serological-based assays.

关键词： Diagnosis Blood-borne viruses Multiplex polymerase chain reaction High-resolution melting

南极和格陵兰岛GPS连续台站背景噪声时空特性

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地球物理学报 2024年第1期67卷 63-76页

作者：潘元进张小红吴奇文焦佳爽丁浩沈嗣钧武汉大学测绘学院武汉430079 湖北珞珈实验室武汉430079 武汉大学中国南极测绘研究中心武汉430079 大地测量与地球动力学国家重点实验室武汉430077

基于GPS观测数据获取的陆地垂向运动对研究现今两极区域的冰川质量变化具有重要的科学意义.受地表环境负荷对GPS时间序列中背景噪声空间异质性的影响,在利用GPS时间序列获取垂向速度场时,估计结果存在较大不确定度.本文针对南极和格陵... 详细信息

基于GPS观测数据获取的陆地垂向运动对研究现今两极区域的冰川质量变化具有重要的科学意义.受地表环境负荷对GPS时间序列中背景噪声空间异质性的影响,在利用GPS时间序列获取垂向速度场时,估计结果存在较大不确定度.本文针对南极和格陵兰岛区域的GPS连续观测时间序列中背景噪声的空间特性对速度场及其不确定度的影响问题,利用地表环境负荷模型(包括大气、非潮汐海洋和水文负荷)和重力卫星GRAcE/GRAcE-FO观测数据反演的地表弹性形变对GPS时间序列进行了改正.通过对改正前后的数据进行背景噪声特性分析,揭示出修正环境负荷形变能够有效降低极区GPS时间序列背景噪声幅度,但是大气和非潮汐海洋负荷改正造成了大多数台站背景噪声谱指数的减小,南极和格陵兰岛分别约为其GPS台站总数的46.1%和84.6%,直接导致了对GPS速度不确定度估计的改善效果不明显.对背景噪声空间异质性的研究结果表明,极区台站的背景噪声参数主要表现为随纬度变化的空间特性.

关键词： GPS GRAcE/GRAcE-FO 环境负荷 GPS背景噪声