简介：BackgroundTheprognosticvalueofserumC-reactiveprotein(CRP)inpatientswithinfectiveendocarditis(IE)isnotwellelucidated.ThisstudyaimedtoevaluatetheusefulnessofCRPinpredictingtheoutcomeofIE.MethodsTwohundredninty-sixpatientsfrom2009to2012intheDepartmentofCardiologyatGuangdongGeneralHospitalwerescreenedanddividedintosurgicalandconventionaltreatmentgroups.CRP,whitebloodcell(WBC),erythrocytesedimentationrate(ESR)andotherclinicaldatawereobtainedwithfollow-upfor12months.ResultsTwohundredthirty-sixpatientswereassignedtoreceivesurgerytreatmentwhile60patientsreceivedconventionaltreatment.Inthesurgerygroup,thelevelofCRPinthedeathpatientswassignificantlyhigherthanthatinthesurvivalpatients(P<0.001).TheareaunderthecurveofROCwasabout0.749(SE0.064,P=0.005,95%CI,0.624-0.874)andthecut-offpointofCRPwas23.8mg/L.Inconventionalgroup,therewassignificantdifferencebetweendeathandsurvival(P<0.001).TheareaunderthecurveofROCwasabout0.701(SE0.095,P=0.032,95%CI,0.515-0.888)andthecut-offpointsofCRPwas65.6mg/L.TherewerenosignificantdifferencesinWBCandESRbetweensurgeryandconventionalgroups.ConclusionAmoreaggressivesurgicalinterventionresultsinabetteroutcomeoverconventionaltreatmentandCRPcouldbeservedasapredictivemarkerforadverseoutcomeinIEpatients.

简介：AIMTo与类型2糖尿病mellitus(T2DM)在中国病人的一个队调查在C反应的蛋白质(CRP)和糖尿病的retinopathy(医生)之间的关系基于.METHODSCommunity的观察的队学习。有1131个参加者，在城市的北京在Desheng社区从2009年11月招募到2011年9月。病人们诊断了T2DM被招募并且经历由一张问询表，眼睛、人体测量的检查和实验室调查组成的标准化评估。医生的存在和严厉由七个领域被估计30°；渲染宫底相片。题目然后没有医生，任何医生，或威胁视觉的克尔普博士被分类进组与T2DM从1007个病人全部的学习subjects.RESULTSA的浆液被分析为分析被包括，包括408(40.5%)男人并且599(59.5%)女人。中部的CRP水平为男人是为女人和1.1mg/L的1.5mg/L(P=0.004，或0.37，95%CI0.18-0.74)。在为可能的covariates调整以后，CRP的高水平与任何医生的更低的流行被联系(P=0.02，或0.55，95%CI0.35-0.89)，然而并非与威胁视觉的医生联系了(P=0.62，或0.78，95%CI0.28-2.14)。在由性的层化以后，在CRP和医生之间的反的协会被发现在男人统计上重要(P=0.006，或0.35，95%CI0.16-0.73)，然而并非在女人(P=0.58，或0.88，95%CI0.29-1.16)与T2DM从一张中国人口拉的.CONCLUSIONThe数据建议那增加的CRP层次可以相反地与医生的开发被联系。

简介：AbstractBackground:The screening of periprosthetic joint infection (PJI) in patients with inflammatory diseases before revision arthroplasty remains uncertain. Serum C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), plasma fibrinogen (FIB), monocyte/lymphocyte ratio, and neutrophil/lymphocyte ratio (NLR) can help screening PJI, but their values in patients with inflammatory diseases have not been determined.Methods:Patients with inflammatory diseases who underwent revision hip or knee arthroplasty at West China Hospital, Sichuan University, from January 2008 to September 2020 were divided into infected and non-infected groups based on the 2013 International Consensus Meeting criteria. Sensitivity and specificity of the tested biomarkers for diagnosing infection were determined based on receiver operating characteristic (ROC) curves, and optimal cutoffs were determined based on the Youden index. The diagnostic ability of these biomarkers was re-assessed after combining them with each other.Results:A total of 62 patients with inflammatory diseases were studied; of them 30 were infected. The area under the ROC curve was 0.813 for CRP, 0.638 for ESR, 0.795 for FIB, and 0.656 for NLR. The optimal predictive cutoff of CRP was 14.04 mg/L with a sensitivity of 86.2% and a specificity of 68.7%, while FIB had a sensitivity of 72.4% and a specificity of 81.2% with the optimal predictive cutoff of 4.04 g/L. The combinations of CRP with FIB produced a sensitivity of 86.2% and specificity of 78.1%.Conclusion:CRP with a slightly higher predictive cutoff and FIB are useful for screening PJI in patients with inflammatory diseases, and the combination of CRP and FIB may further improve the diagnostic values.Trial Registration:ChiCTR.org.cn, ChiCTR2000039989

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简介：效果形态学，水晶结构和composites由反应milling准备了的Mg/C的氢吸着性质上的瞬间被学习。传播电子显微镜(TEM)与瞬间的增加准备的那Mg/Ccomposites有粒子尺寸的nanoscale关于在3以后的20-120nm的观察表演milling的h不到1MPaH2。MgH2有四面的水晶组织支配在里面有倾斜的六角形的棱柱的几何形状的材料。从X光检查衍射(XRD)和内容学习的氢，瞬间和微晶的碳在支持加氢率上有synergistic效果在里面反应milling过程。从微分扫描calorimetric(DSC)研究，除氢作用达到顶点有瞬间的Mg/C材料的温度被降低到299-340？

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简介：Tomeettheincreasingdemandforadvancedmaterialscapableofoperationover2000℃forfuturethermalprotectionsystemsapplication,C/C—ZrC—SiCcompositeswerefabricatedbyreactivemeltinfiltration(RMI)withZr,Simixedpowdersasrawmaterials.ThestructuralevolutionandformationmechanismoftheC/C—ZrC-SiCcompositeswerediscussed,andthemechanicalpropertyoftheas-preparedmaterialwasinvestigatedbycompressiontest.TheresultsshowedthataftertheRMIprocess,aspecialstructurewithZrC-SiCmulti-coatingasouterlayerandZrC-SiC-PyCceramicsasinnermatrixwasformed.ZrCandSiCrichareaswereformedinthecompositesandonthecoatingsurfaceduetotheformationofZr-SiintermetalliccompoundsintheRMIprocess.MechanicaltestsshowedthattheaveragecompressionstrengthoftheC/C-ZrC-SiCcompositeswas133.86MPa,andthecarbonfibersinthecompositeswerenotseriouslydamagedaftertheRMIprocess.

简介：Anewhardfacingprocess,reactivebrazecoatingprocess(RBCC)wasstudied,and(TiC+Cr3C2)/FecompositecoatingswerepreparedbyRBCCusingcarbon,Cr3C2,iron,ferrochromiumandtitaniumpowderastherawmaterialsinvacuumbrazefurnace.TheresultsshowthatTiCisin-situsynthesizedinthecoatings.ThemethodsofintroducingCr3C2havegreateffectsonthedistributionofTiC.AddingCr3C2directlytotherawmaterialsforcoatings,fineTiCparticlesaggregateintodiscoidsparalleltothecoatingsurface,whereas,in-situsynthesizingCr3C2incoatings,theaggregationsofTiCarelumpish.Duringbrazecoating,Cr3C2particlesdirectlyaddeddissolveandprecipitatetobecomeneedle-shaped.Thecoatingshaveanevenandsmoothsurfaceandarecombinedwiththeirmildsteelsubstratesbyametallurgicalbonding.

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简介：反应粉末水泥(RPC)的三种类型的影响行为用测试方法的裂口Hopkinson出版社酒吧(SHPB)被学习。这些RPC分别地与0%，3%，和4%的钢纤维体积部分被准备。压力紧张关系，紧张率敏感阀值价值，动态力量增加因素，弹性的模量和使遭到影响负担的这些RPC标本的失败模式被调查。从测试，50s1的紧张率敏感阀值价值被获得。试验性的结果看了那紧张率什么时候从阀值价值增加了到RPC的最大的压力增加了大约20%的95s1,，RPC的弹性的模量增加了大约30%。当使遭到了影响时，有钢纤维加强的RPC标本的失败模式与RPC矩阵标本的很不同装载。在装载率的类似的影响下面，在钢纤维开发的裂缝增强了RPC标本，虽然RPC矩阵标本被分解为小片。

简介：Anovelmethodforpreparationofpolymer-basedmagneticmicrosphereswasproposedbyutilizingmeltreactiveblending,whichwasbasedonselectivelocationofFe_3O_4nanoparticlesinPA6domainsofpolystyrene(PS)/polyamide6(PA6)immiscibleblends.ThemorphologyofPA6/Fe_3O_4compositemagneticmicrosphereswasstudiedbyscanningelectronicmicroscopy(SEM).Thecompositemagneticmicrospheresweresphericalwithadiameterrangeof0.5-8μm;thediameterwassharplydecreasedwithaverynarrowdistributionbyaddingterminalmaleicanhydridefunctionalizedpolystyrenes(FPS)forreactiveblending.Transmissionelectronmicroscopy(TEM)andthermogravimetryanalysis(TGA)resultsshowedthatmostofFe_3O_4waslocatedinthePA6microspheres.MagnetizationdatarevealedthemagnetitecontentofPA6/Fe_3O_4microsphereswasabout32wt%andthesaturationmagnetizationcouldbeupto17.2Am~2/kg.

简介：LeachingexperimentsonmetakaolinshowthatthefinalAlextractionratioreachedinabatchreactionisstrikinglyinfluencedbytheinferiorporestructuregeometryofthemetakaolinpellets.Bycalciningkaolinparticlesadheredinlowhumiditystate,avarietyofmetakaolinpellet,insidewhichalargeopeningsstructuredeveloped,hasbeenprepared.Thestructureremarkablybenefitsleachantiontransference,so,thevarietyhashighacidleachingreactivity,evencoarseasthepelletsare,itsaluminumextractedratiostillhasalinearrelationshipwithleachingtime,andtheleachingkineticsismaintainedzeroorderuptoasignificantconversiondegree.ArevisedPellet-ParticleModelhasbeendevelopedtointerpretthestructureinfluenceonAlextractionratio.

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简介：PolycrystallineZnOfilmswerepreparedonglasswaferusingZntargetsbyradiofrequency(RF)reactivesputteringtechniqueunderdifferentdepositionconditions.X-raydiffraction(XRD)andopticaltransmittancespectrumwereemployedtoanalyzethestructureandopticalcharacterofthefilms.Thestrainandstressinfilms,aswellasthepackingdensityarecalculatedintermsofrefractiveindexoffilmsmeasuredwithanellipticpolarizationanalyzer.ItisthedepositionconditionsthathavegreateffectsonthestructuralandopticalpropertiesofZnOfilms.Undertheoptimalconditions,theonlyevidentpeakinXRDspectrumwas(002)peakwiththefullwidthathalfmaximum(FWHM)of0.20°showingthegrainsizeof42.8nm.Thepackingdensity,thestressin(002)planeandtheaverageopticaltransmittanceinthevisibleregionwereabout97%,-1.06×109N/m2and92%,respectively.

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简介：Thispaperdescribesthepreparationofpolystyrylsulfonylchloride,areactiveintermediate,anditsapplicationinsynthesesoffunctionalizedpolymerswhichcanbeusedinorganicchemistryaspolymericreagents,supportsandincontrolledreleasesystems.

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