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serum amylase as a novel prognostic marker of organophosphorus poisoning: a retrospective study

Emergency and critical care Medicine 2024年第3期4卷 111-116页

作者： Guo x. chen Z. Feng K. Zeng s. Zhang j. Ma Z. Yuan c. school of clinical Medicine Ningxia Medical University Ningxia Hui Yinchuan China Emergency Department General Hospital of Ningxia Medical University Ningxia Hui Autonomous Region Yinchuan China

background: This study aims to explore the significance of serum amylase levels in patients with organophosphorus pesticide (OP) poisoning and to provide a new perspective for evaluating the severity and prognosis of OP poisoning. Methods: The clinical data of 67 patients with acute OP poisoning, who had been treated in the emergency department of the General hospital of Ningxia Medical University between september 2020 and August 2022, were retrospectively analyzed. Using spearman rank correlation, serum amylase levels during admission and severity of poisoning correlated with discharge outcomes. based on serum amylase levels, receiver operating characteristic curves were plotted to predict the severity and mortality of patients who experience organophosphate poisoning. The optimal threshold serum amylase level at admission was determined based on the maximum Youden index. Results: Using spearman rank correlation analysis, serum amylase levels at admission positively correlated with the severity of poisoning and discharge outcomes, but the degree of correlation was weak (rs: 0.344; 0.264; P he patients’ serum amylase levels at admission had receiver operating characteristic area under the curve values of 0.726 and 0.735 to predict the degree of severe poisoning and death, respectively. based on the maximum Youden index, the optimal threshold of serum amylase were 97.8 and 194.1 U/l when the degree of poisoning was severe and the discharge outcome of patients was died. In comparison to patients with serum amylase levels ≤194.1 U/l at admission, the OR values of death in patients with serum amylase levels >194.1 U/l at admission was 15.944 (95% cI: 1.825–139.274). conclusion: serum amylase levels in patients with organophosphate poisoning correlate with the degree of poisoning and discharge outcomes. higher serum amylase level was a risk factor for organophosphorus poisoning death. © Wolters Kluwer health, Inc. All rights reserved.

关键词： Amylase Emergency department Organophosphorus pesticide poisoning Prognosis

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Rapid prediction of flow and concentration fields in solid-liquid suspensions of slurry electrolysis tanks

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International journal of Minerals,Metallurgy and Materials 2024年第9期31卷 2006-2016页

作者： Tingting lu kang li hongliang Zhao Wei Wang Zhenhao Zhou xiaoyi cai Fengqin liu state key laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China state key laboratory of Intelligent Optimized Manufacturing in Mining&Metallurgy Process Beijing 102628China school of Materials science and Engineering Lanzhou University of TechnologyLanzhou 730050China school of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China

slurry electrolysis(sE),as a hydrometallurgical process,has the characteristic of a multitank series connection,which leads to various stirring conditions and a complex solid suspension *** computational fluid dynamics(cFD),which requires high computing resources,and a combination with machine learning was proposed to construct a rapid prediction model for the liquid flow and solid concentration fields in a sE *** scientific selection of calculation samples via orthogonal experiments,a comprehensive dataset covering a wide range of conditions was established while effectively reducing the number of simulations and providing reasonable weights for each ***,a prediction model of the sE tank was constructed using the K-nearest neighbor *** results show that with the increase in levels of orthogonal experiments,the prediction accuracy of the model improved *** model established with four factors and nine levels can accurately predict the flow and concentration fields,and the regression coefficients of average velocity and solid concentration were 0.926 and 0.937,*** with traditional cFD,the response time of field information prediction in this model was reduced from 75 h to 20 s,which solves the problem of serious lag in cFD applied alone to actual production and meets real-time production control requirements.

关键词： slurry electrolysis solid-liquid suspension computational fluid dynamics K-nearest neighbor algorithm rapid prediction

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liquid crystal-integrated metasurfaces for an active photonic platform

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Opto-Electronic Advances 2024年第6期7卷 5-29页

作者： Dohyun kang hyeonsu heo Younghwan Yang junhwa seong hongyoon Kim joohoon Kim junsuk Rho Department of Mechanical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Department of chemical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Department of Electrical Engineering Pohang University of Science and Technology(POSTECH)Pohang 36763Republic of Korea POscOPOsTEch-RIsT convergence Research center for Flat Optics and Metaphotonics Pohang 37673Republic of Korea National Institute of Nanomaterials Technology(NINT) Pohang 37673Republic of Korea

Metasurfaces have opened the door to next-generation optical devices due to their ability to dramatically modulate electromagnetic waves at will using periodically arranged ***,metasurfaces typically have static optical responses with fixed geometries of nanostructures,which poses challenges for implementing transition to technology by replacing conventional optical *** solve this problem,liquid crystals(lcs)have been actively employed for designing tunable metasurfaces using their adjustable birefringent in real ***,we review recent studies on lcpowered tunable metasurfaces,which are categorized as wavefront tuning and spectral *** to numerous reviews on tunable metasurfaces,this review intensively explores recent development of lc-integrated *** the end of this review,we briefly introduce the latest research trends on lc-powered metasurfaces and suggest further directions for improving *** hope that this review will accelerate the development of new and innovative lc-powered devices.

关键词： tunable metasurface liquid crystal active metasurface electrically tunable optical system

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3D core-shell nanofibers framework and functional ceramic nanoparticles synergistically reinforced composite polymer electrolytes for high-performance all-solid-state lithium metal battery

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chinese chemical letters 2024年第8期35卷 425-432页

作者： hengying xiang Nanping Deng lu Gao Wen Yu bowen cheng Weimin kang state key laboratory of separation Membranes and Membrane Processes Tiangong UniversityTianjin 300387China school of Textile science and Engineering Tiangong UniversityTianjin 300387China

satisfactory ionic conductivity,excellent mechanical stability,and high-temperature resistance are the prerequisites for the safe application of solid polymer electrolytes(sPEs)in all-solid-state lithium metal batteries(AsslMbs).In this study,a novel poly(m-phenylene isophthalamide)(PMIA)-core/poly(ethylene oxide)(PEO)-shell nanofiber membrane and the functional li_(6.4)la_(3)Zr_(1.4)Ta_(0.6)O_(12)(llZTO)ceramic nanopar-ticle are simultaneously introduced into the PEO-based sPEs to prepare composite polymer electrolytes(cPEs).The core PMIA layer of composite nanofibers can greatly improve the mechanical strength and thermal stability of the cPEs,while the shell PEO layer can provide the 3D continuous transport channels for lithium *** addition,the introduction of functional llZTO nanoparticle not only reduces the crys-tallinity of PEO,but also promotes the dissociation of lithium salts and releases more li^(+)ions through its interaction with the lewis acid-base of anions,thereby overall improving the transport of lithium ***,the optimized cPEs present high ionic conductivity of 1.38×10^(−4)s/cm at 30℃,signifi-cantly improved mechanical strength(8.5 MPa),remarkable thermal stability(without obvious shrinkage at 150℃),and conspicuous li dendrites blocking ability(>1800 h).The cPEs also both have good com-patibility and cyclic stability with liFePO_(4)(>2000 cycles)and high-voltage liNi_(0.8)Mn_(0.1)co_(0.1)O_(2)(NMc811)(>500 cycles)*** addition,even at low temperature(40℃),the assembled liFePO4/cPEs/li bat-tery still can cycle *** novel design can provide an effective way to exploit high-performance solid-state electrolytes.

关键词： composite polymer electrolytes core-shell structured nanofiber li_(6.4)la_(3)Zr_(1.4)Ta_(0.6)O_(12)ceramic nanoparticle All-solid-state lithium metal batteries Outstanding thermal stability and electrochemical performance

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Advanced preparation and application of bimetallic materials in lithium-sulfur batteries:A review

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journal of Energy chemistry 2024年第1期88卷 469-512,I0011页

作者： Yongbing jin Nanping Deng Yanan li hao Wang Meiling Zhang Weimin kang bowen cheng state key laboratory of separation Membranes and Membrane Processes/National center for International joint Research on separation Membranes School of Textile Science and EngineeringTiangong UniversityTianjin 300387China

lithium-sulfur(li-s)batteries are considered highly promising as next-generation energy storage systems due to high theoretical capacity(2600 Wh kg^(-1))and energy density(1675 mA h g^(-1))as well as the abundant natural reserves,low cost of elemental sulfur,and environmentally friendly ***,several challenges impede its commercialization including low conductivity of sulfur itself,the severe“shuttle effect”caused by lithium polysulfides(liPss)during charge–discharge processes,volume expansion effects and sluggish reaction *** a solution,polar metal particles and their compounds have been introduced as the main hosts for sulfur cathode due to their robust catalytic activity and adsorption capability,effectively suppressing the“shuttle effect”of li *** alloys and their compounds with multi-functional properties exhibit remarkable electrochemical performance more readily when compared to single-metal ***-designed bimetallic materials demonstrate larger specific surface areas and richer active sites,enabling simultaneous high adsorption capability and strong catalytic *** synergistic effect of the“adsorption-catalysis”sites accelerates the adsorptiondiffusion-conversion process of li Pss,ultimately achieving a long-lasting li-s ***,the latest progress and performance of bimetallic materials in cathodes,separators,and interlayers of li-s batteries are systematically ***,the principles and challenges of li-s batteries are briefly ***,various mechanisms for suppressing“shuttle effects”of li Pss are emphasized at the ***,the performance parameters of various bimetallic materials are comprehensively summarized,and some improvement strategies are proposed based on these ***,the future prospects of bimetallic materials are discussed,with the hope of providing profound insights for the rational design and manufacturing of high-performance bimetallic materia

关键词： bimetallic materials lithium-sulfur batteries Effectively suppress shuttle effect of liPss significantly improve reaction kinetics Exceptionally long lifespan

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由超拍电子伏特加速器产生的超高能伽马射线气泡

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science bulletin 2024年第4期69卷 449-457页

作者： lhAAsO collaboration Zhen cao chuandong Gao cong li Ruo-Yu liu Ruizhi Yang 不详 key laboratory of Particle Astrophyics&Experimental Physics Division&computing center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of chinese Academy of sciences Beijing 100049China TIANFU cosmic Ray Research center ChengduChina Institute of Frontier and Interdisciplinary science Shandong UniversityQingdao 266237China school of Astronomy and space science Nanjing UniversityNanjing 210023China University of science and Technology of china Hefei 230026China

We report the detection of aγ-ray bubble spanning at least 100deg2 in ultra-high energy(UhE)up to a few PeV in the direction of the star-forming region cygnus x,implying the presence super PeVatron(s)accelerating protons to at least 10 PeV.A log-parabola form with the photon indexΓ(E)=(2.71±0.02)+(0.11±0.02)×log10(E/10 TeV)is found fitting the gamma-ray energy spectrum of the bubble *** sources,“hot spots”correlated with very massive molecular clouds,and a quasi-spherical amorphousγ-ray emitter with a sharp central brightening are observed in the *** the core of~0.5°,spatially associating with a region containing massive Ob association(cygnus Ob2)and a microquasar(cygnus x-3),as well as previously reported multi-TeV sources,an enhanced concentration of UhEγ-rays is observed with 2 photons at energies above 1 *** general feature of the bubble,the morphology,and the energy spectrum,are reasonably reproduced by the assumption of a particle accelerator in the core,continuously injecting protons into the ambient medium.

关键词： cosmic rays γ-rays Interstellar medium star cluster

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Tourmaline geochemistry as genetic evolution and metallogenic potential indicators of pegmatites: a case study from the Tugeman be-li deposit， Middle Altun

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journal of Earth science 2024年

作者： hang li xingwang xu Tao hong Qiang ke Yince Ma Kai kang Zhiquan Yang changsheng Guo college of Architecture and civil Engineering， sanming University key laboratory of Mineral Resources， Institute of Geology and Geophysics， chinese Academy of sciences University of chinese Academy of sciences Innovation Academy for Earth science， chinese Academy of sciences Guangdong Provincial key lab of Geodynamics and Geohazards， school of Earth sciences and Engineering， sun Yat-sen University southern Marine science and Engineering Guangdong laboratory (Zhuhai) No.3 Geological Party， xinjiang bureau of Geology and Mineral Exploration and Development

Tourmaline is a common borosilicate mineral in granite and pegmatite， and it is also an important carrier to record the physicochemical evolution information of magmas. however， the genetic relationship between pegmatite-type rare metal mineralization potential and tourmaline-bearing pegmatites is not clear， and the tourmaline geochemical indication of the mineralization type of rare metals needs to be supplemented. In the middle Altun region， extensive tourmaline-bearing pegmatite dykes are prevalent within and surrounding the Tugeman complex. In this paper， the petrology and geochemical characteristics of tourmaline within the pegmatite of the Tugeman be-li deposit have been comprehensively analyzed. The research delves into the genetic evolution and metallogenic potential of the pegmatite， emphasizing the indicative role of tourmaline geochemistry in discerning mineralization types in the Tugeman be-li deposit. Major and trace element analysis of tourmaline reveals varying contents of FeO （9.37 wt.%–17.10 wt.%）， Al2O3（28.64 wt.%–35.22% wt.%）， and MgO （0.13 wt.%–2.47 wt.%） in the Tugeman be–li pegmatite. li， Zn， and sn contents range from 204 ppm to 1 590 ppm， 1 143 ppm to 4 089 ppm， and 74 ppm to 396 ppm， respectively. The tourmaline analyzed in this study is magmatic origin and belongs to schorl series， exhibits substitution relationships， including (Na， Fe2+)(x□， Al)-1， (Fe2+， Fe3+)（Mg， Al）-1， (Al，x□)(R2+， Na)-1，（Na， Mg）(x□， Al)-1andx□NaR2+-1. The trace element data of tourmaline show that lithium has four enrichment stages in different mineral crystallization phases. Notably， the tendency of tourmaline in the Tugeman be-li pegmatite to evolve towards elbaite implies a magmatic evolution sequence from low to high， transitioning through microcline-albite pegmatite， muscovite-microcline-albite pegmatite， albite pegmatite， and microcline pegmatite. Furthermore， we also propose that the sc content in schorl can serve as an indicator of pegmatite mineralization typ

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Exploring one material for dual applications:A red-emitting Mg2GeO4:Eu3+ nanophosphor for future generation energy efficient WlEDs and dosimetric applications

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journal of Rare Earths 2024年第10期42卷 1835-1845页

作者： Akshay Arjun G.P.Darshan s.c.sharma h.Nagabhushana D.V.sunitha h.b.Premkumar Department of Physics Faculty of Mathematical and Physical SciencesM.S.Ramaiah University of Applied Sciences jain University c.N.R.Rao centre for Advanced Materials Tumkur University school of Applied sciences (Physics) REVA University

The envisaged design and developme nt of individual mate rials to excavate a broader spectrum of desired properties and offer multiple applications are highly *** this in mind,a series of forsterite-structured Mg2GeO4:Eu3+（1 mol%-9 mol%） nanophosphors was synthesized via a solution combustion method using oxalyl dihydrazide as a *** x-ray diffraction patterns confirm the orthorhombic crystal system with a Puma space *** results clearly show irregularly shaped cluster-like structures with aggregation of the *** diffuse reflectance spectra,the optical energy band gap of the Mg2GeO4:Eu3+（1 mol%-9 mol%） nanophosphors was estimated and obtained to be～4.12-4.32 *** photoluminescence emission spectra exhibit intense peaks at ～579,589,610,661,and 707 nm,which are due to characteristic5D0→7F0,5D0→7F1,5Do→7F2,5D0→7F3and5D0→7F4transitions of Eu3+ions,*** commission International de l'Eclairage color coordinates are gradually tuned from pale red（0.5980,0.4012） to a pure red（0.6385,0.3611） *** glow peaks showcase excellent super-linear response at low doses of γ-irradiations,indicating that the prepared phosphor can be used in thermoluminescent personal dosimetry which is a biological tissue *** aforementioned results demonstrate that the prepared Mg2GeO4:Eu3+（1 mol%-9 mol%） nanophosphors are considered an excellent candidate for dual applications,i.e.,red component in future generation white-light-emitting diodes（WlEDs） and personal dosimetric applications.

关键词： Dosimetry Nanophosphors Photoluminescence Photometric properties Rare earths Thermoluminescence

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Effect of small Needle Knife on Autophagy and TGF-β in synovial Fluid of KOA Rats

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chinese journal of biomedical Engineering(English Edition) 2024年第1期33卷 33-39页

作者： ZhENG kang-hua lIN Zeng-ping chEN Yong Fujian Provincial 2nd People's hospital Affiliated Hospital of Fujian University of Traditional Chinese MedicineFuzhou Fujian 350003China college of Integrative chinese and Western Medicine Fujian University of Traditional Chinese MedicineFuzhou Fujian 350122China

Objective:To explore the effects of small needle knife on the autophagy function of synovium and the expression of TGF-βin synovial fluid of KOA rats,so as to provide a new theoretical basis for the treatment of ***:48 sD rats were randomly divided into blank control group,model group,drug group and acupotomy *** blank control group maintained the original feeding without any intervention,the model group adopted the sodium monoiodoacetate injection method to prepare the KOA rat model without any intervention,the drug group prepared the KOA rat model and then treated with tripterine by gavage,and the needle knife group treated the KOA rat model with small needle *** expression levels of autophagy-related proteins in synovial tissues were detected by immunohistochemistry and Western blotting,and the content of TGF-βin synovial fluid was measured by ***:compared with the blank control group,beclin-1,caspase-3 and bax were up-regulated and m TOR was down-regulated in the model ***-1,m TOR,caspase-3 and bax were up-regulated in the drug *** was no significant difference in the expression of autophagy-related proteins beclin-1(0.28±0.09)and m TOR(0.45±0.12)between the acupotomy group and the blank control group,while caspase-3(0.17±0.03)and bax(0.30±0.01)were *** expression level of TGF-βin synovial fluid in the small needle knife group was(0.29±0.09),which was similar to that in the blank control group,and was significantly higher than that in the model ***:small needle knife treatment can promote the recovery of synovial autophagy in KOA rats,and reduce the level of TGF-βin synovial fluid,and can play a clinical role in the treatment of KOA by regulating the expression of synovial autophagy and TGF-β.

关键词： small needle knife knee osteoarthritis(KOA) synovium autophagy transforming growth factorβ(TGF-β)

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Efficient guiding and focusing of intense laser pulse using periodic thin slits

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Matter and Radiation at Extremes 2024年第4期9卷 29-39页

作者： l.xu T.W.huang K.jiang c.N.Wu h.Peng P.c.hen R.li h.b.Zhuo c.T.Zhou shenzhen key laboratory of Ultraintense laser and Advanced Material Technology Center for Intense Laser ApplicationTechnologyand College of Engineering PhysicsShenzhen Technology UniversityShenzhen 518118People’s Republic of China

slits have been widely used in laser-plasma interactions as plasma optical components for generating high-harmonic light and controlling laser-driven particle ***,we propose and demonstrate that periodic thin slits can be regarded as a new breed of optical elements for efficient focusing and guiding of intense laser *** fundamental physics of intense laser interaction with thin slits is studied,and it is revealed that relativistic effects can lead to enhanced laser focusing far beyond the pure diffractive focusing *** addition,the interaction of an intense laser pulse with periodic thin slits makes it feasible to achieve multifold enhancement in both laser intensity and energy transfer efficiency compared with conventional *** results provide a novel method for manipulating ultra-intense laser pulses and should be of interest for many laser-based applications.

关键词： laser pulse intense

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