简介：目的探讨肾小球系膜区IgM沉积在儿童原发性肾小球疾病中的意义。方法选取2005年6月至2011年6月于北京大学第一医院儿科住院并行肾穿刺活检的原发性肾小球疾病患儿作为研究对象。根据免疫荧光下肾小球系膜区有无IgM沉积进行分组,将肾小球系膜区IgM沉积≥＋且IgM免疫荧光强度≥其他免疫球蛋白荧光强度的患儿作为IgM沉积组,其余患儿为对照组。回顾性分析两组的临床、病理特点和随访等情况。结果125例原发性肾小球疾病患儿进入分析,其中IgM沉积组76例,对照组49例。①两组在发病年龄、血总蛋白、血白蛋白、血总胆固醇、肌酐清除率、肾早期损伤指标、高血压和肾功能不全发生率等方面差异无统计学意义。IgM沉积组24h尿蛋白定量及血IgM水平显著高于对照组（P分别为0.025和0.038）。②IgM沉积组肾小球硬化及小动脉病变发生率显著高于对照组（P分别为0.002和0.039）,基底膜增厚发生率显著低于对照组（P=0.000）。③对激素治疗反应两组差异无统计学意义（P=0.364）。④随访2-78个月,两组肾功能不全及ESRD发生率差异无统计学意义。⑤IgM沉积组3/76例男性患儿行重复肾活检。除1例首次肾活检已诊断为局灶节段性肾小球硬化外,余2例在第2次肾活检时均由系膜增生性肾小球肾炎转化为局灶节段性肾小球硬化。结论伴系膜区IgM沉积的原发性肾小球疾病患儿蛋白尿程度更重,肾脏病理改变亦更突出。对于伴系膜区IgM沉积的原发性肾小球疾病患儿应格外关注并密切随访,警惕其进展为局灶节段性肾小球硬化的可能。

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简介：AdhesionimprovementofCVDdiamondfilimbyintroducinganelectro-depositedinterlayer;Agitation:themostversatiledegreeoffreedomforsurfacefinishers;Developmentofhydroxyapatitecoatingonporoustitaniumviaelectro-depositiontechnique;EffectofintensemagneticfieldonCdTeelectro-deposition;ElectrodepositionofMetallicLithiumonaTungstenElectrodein1-Butyl-l-methylpyrrolidiniumBis(tritluoromethanesulfone)imideRoom-temperatureMoltenSalt

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简介：[篇名]Bi-2212:AnHTSCoatedConductor,[篇名]Carbonnanotube-perovskite-compositesasnewelectrodematerial,[篇名]CeO{sub}2bufferlayerbypulsedlaserdepositionforYBCOcoatedconductor,[篇名]CeO{sub)2BufferLayersDepositedbyPulsedLaserDepositionforTFA-MODYBa{sub}2Cu{sub}3O{sub)(7-x)SuperconductingTape,[篇名]Characteristicofthin-filmNTCthermalSensors,[篇名]Characteristicsofcobalt-dopedzincoxidethinfilmspreparedbypulsedlaserdeposition,[篇名]CharacteristicsofTiO{sub}2ThinFilmasaPhotocatalystPrepardUsing-thePulsedLaserDepositionMethod.

简介：Co-dopingDepositionofp-typeZnOThinFilmsusingKrFExcimerLaserAblation;ComparisonofGrowthMorphologyinGe(001)HomoepitaxyUsingPulsedLaserDepositionandMBE;CompositionandstructureofBCNfilmspreparedbyionbeam-assistedpulsedlaserdeposition;Compositionofβ-FeSi{sub}2thin-filmsgrownbyapulsedlaserdepositionmethod

简介：SY509-3-202[篇名]Influenceofthetemperaturedistributiononchemicaldepositionininternalproblems；SY509-3-203[篇名]ManufacturingReliableUnlaededViasWithoutCVDBarrierLayers；……

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简介：[篇名]Electro-depositionoftantalumontumgstenandnickelinLiF-NaF-CaF{sub}2meltcontainingK{sub}2TaF{sub}7electrochemicalstudy,[篇名]Electro-EpitaxialBufferLaycrsforREBCOTspeArchitectures,[篇名]EQCMwithair-gapexcitationelectrode.Calibrationtestswithcopperandoxygencoatings,[篇名]FormationofWell-definedNanocolumnsbyIonTrackingLithography,[篇名]Fundamentalexperimentalstudyonfreefabricationofnanocrystallinecopperbulkbyselectiveelectrodepositionwithelectrolytejet,[篇名]Magneticnanowirearraysobtainedbyelectro-depositioninorderedaluminatemplates,[篇名]Morphologicalcharacteristicsofnickelparticleselectrodepositedfromchloridedominantsolution.

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简介：1799年,意大利物理学家亚历山德罗·伏打将铜和锌用盐水纸片间隔着堆叠到一起,得到了世界上第一个原电池。他不仅把当时的电学研究从静电扩展到电流,还开启了电化学研究的大门。电的参与给化学带来了无限的可能性:隐藏在化学反应中的电能被提取出来时我们得到了电池,而对特定的化学体系施加电压,则能让化学反应向着我们希望的方向进行。

简介：SY509-3-209[篇名]CrystallinePropertiesofFerroelectric-RelaxorPMN-PIThinFilmsbyPulsedLaserDeposition；SY509-3-210[篇名]CuprateBasedOxideSuperlatticesShowingSimultaneouslySuperconductingandFerromagneticProperties；……

简介：1PURPOSOFTHESTUDYThearticle99intheSpecificRulesforEnforcingtheFrontierHealthandQuarantineLawofthePeople’sRepublicofChinahasindicatedthatthehealthandquarantineorganizationshallpreventanyforeignersufferingfromvenerealdiseasesfromenteringtheterritory.Becausetheroutineconfirmatorytestforsyphilisfluorescenttreponemalantibodyab-

简介：Objective:Toevaluatetheclinicalutilityoftestingserumanti-treponemapallidumIgMantibodyinthediagnosisofsyphilispatients.Methods:Seventy-twocasesofsyphilisweretestedforspecificIgMantibodywithELISA,andtheresultswerecomparedwithRPRandTPPA.Results:ThesensitivityofIgMantibodywas73.3%(11/15)inprimarysyphilis,88.9%(16/18)insec-ondarysyphilis,andtherewasnosignificantdiffer-encebetweenthesevalues(x^2=1.6363,P>0.10).ThesensitivityofIgMantibodyindiagnosinglatentsyphi-liswasonly26.1%(6/23),muchlowerthanthedetec-tionrateinsymptomaticearlvsvDhilis(x^2=17.6189.P<0.005).RPRandTPPAwereboth100%sensitiveinlatentandearlysymptomaticsyphilis.Twowereposi,fiveforIgMinthe16caseswhohadreceivedregulartreatments2to24monthsbeforeenrolled.Conclusions:SpecificIgMantibodydetectiondoeesnotappearsuperiortoRPRandTPPAindiagnosingprimarysyphilis.ThediagnosisoflatentsyphilisshouldmainlyrelyonRPRandTPPA,sincetherearelowtitersofIgMantibodyatthatstage.IgMantibodytestingaloneshouldnotberecommendedformonitor-ingsyphilisdevelopmentortreatmentefficacy.Fur-therstudiesshouldbeconcerned.

简介：异重流是一种与河口连接、密度大于周围水体，并沿着水底流动的液体，一般产生在干燥、炎热、少植被地区的洪水期，是一种持续性的浊流。由异重流形成的沉积岩称为异重岩，层面富含丰富的有机质和陆地植物碎屑，异重流沉积叠加厚度可达数十米，它的平面特征表现为舌状体、水道和堤岸沉积单元的物源富砂和富泥型特征。异重流的这种特性，在水库减少淤，或者修建蓄水电站的时候，在底部设置底孔，能够通过利用库底的浑水异重流将泥沙排走，所以通长用在水库减少淤工作中。

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