简介:Weconsiderforafixedμ,theclassofpolynomialsPn,μ,s:=P(z)=zsanzn-s+n-s∑j=μan-jzn-j-s;1≤μ≤n-sofdegreen,havingallzerosin|z|≤k,k≤1,withs-foldzerosattheorigin.Inthispaper,wehaveobtainedinequalitiesinthereversedirectionfortheaboveclassofpolynomials.Besides,extensionsofsomeTuran-typeinequalitiesforthepolarderivativeofpolynomialshavebeenconsidered.
简介:AnefficientroutetoprepareL-glucoseandL-galactoseisdescribed.TheL-sugarsareachievedbyusingthestrategyofswitchingthefunctionalgroupsatC1andC5ofD-glucoseandD-mannose.TheoxidationandreductionofthesilylenoletheratC1andthelead(IV)tetraacetatemediatedoxidativedecarboxylationatC5arethekeysteps.L-GlucoseandL-galactosearepreparedinaconvenientandinexpensiveway.
简介:Lp-LqdecayestimateofsolutiontoCauchyproblemofalinearthermoviscoelasticsystemisstudied.Byusingadiagonalizationargumentoffrequencyanalysis,thecoupledsystemwillbedecoupledmicrologically.Thenwiththehelpoftheinformationofcharacteristicrootsforthecoefficientmatrixofthesystem,Lp-LqdecayestimateofparabolictypeofsolutiontotheCauchyproblemisobtained.
简介:以往在血型血清学疑难配血中往往通过血型定型(AB0正反定型、RhDCE定型等),抗体筛查(筛选细胞、谱细胞等),抗体Coombs及吸收放散实验等步骤一般即可完成相应的配血过程。但在血清学检测条件不充分时如稀有血型抗体缺乏、谱细胞的谱型不全时等,对于稀有表型及存有高频抗原抗体的血液的配型,常规的检测方法与路径有时就显不够。此时如配合以血型基因分型检测可能的血型表型基因并判断相应的抗体存在,应当是解决问题的一个路径。我室最近在Diego系统抗体缺乏、谱细胞谱不完全的情况下,结合基因分型的方法,解决了2份存有抗高频抗原Dib抗体的定型与输血问题。
简介:摘要:目的:在急危重症护理专业学生教学中,探究SSP的教学效果。方法:选择在2018.01~2020.01本院急危重症护理专业学生74人,按照教学手段的不同,将学生分为两组,SSP(观察),常规教学(对照组),然后探究两组学生的教学效果。结果:对比DREEM评分,观察组学习知觉、教师知觉、学术知觉、环境知觉、社交知觉为(35.69±1.15)、(21.58±1.69)、(26.67±2.36)、(33.79±1.32)、(22.83±2.13),对照组为(29.36±1.28)、(16.39±1.15)、(20.37±2.31)、(25.96±2.38)、(15.69±2.25),差异P
简介:摘要:目的:在急危重症护理专业学生教学中,探究SSP的教学效果。方法:选择在2018.01~2020.01本院急危重症护理专业学生74人,按照教学手段的不同,将学生分为两组,SSP(观察),常规教学(对照组),然后探究两组学生的教学效果。结果:对比DREEM评分,观察组学习知觉、教师知觉、学术知觉、环境知觉、社交知觉为(35.69±1.15)、(21.58±1.69)、(26.67±2.36)、(33.79±1.32)、(22.83±2.13),对照组为(29.36±1.28)、(16.39±1.15)、(20.37±2.31)、(25.96±2.38)、(15.69±2.25),差异P
简介:摘要:目的:在急危重症护理专业学生教学中,探究SSP的教学效果。方法:选择在2018.01~2020.01本院急危重症护理专业学生74人,按照教学手段的不同,将学生分为两组,SSP(观察),常规教学(对照组),然后探究两组学生的教学效果。结果:对比DREEM评分,观察组学习知觉、教师知觉、学术知觉、环境知觉、社交知觉为(35.69±1.15)、(21.58±1.69)、(26.67±2.36)、(33.79±1.32)、(22.83±2.13),对照组为(29.36±1.28)、(16.39±1.15)、(20.37±2.31)、(25.96±2.38)、(15.69±2.25),差异P
简介:1.IntroductionInthispaperweconsiderCauchyproblemforaclassofnonhomogeneousNavier-Stokesequationsintheinfinitecylinderwith.Givensatisfyinginthedistributionsensediv,weseekasolutionvectorandapressurefunctionP(t,x)suchthatwhereisanonlinearvector-valuedfun...
简介:BACKGROUND:Themostprominentcharacteristicofbrainagingisdecreasedlearningandmemoryability.Thefunctionsoflearningandmemoryarecloselyrelatedtointracerebralacetylcholinesterase(AChE)andmonoamineneurotransmitteractivity.PreviousstudieshaveshownthatSchisandrachinensispolysaccharidehasananti-agingeffect.OBJECTIVE:ToexploretheeffectsofSchisandrachinensispolysaccharideonAChEactivityandmonoamineneurotransmittercontent,aswellaslearningandmemoryabilityinaD-galactose-inducedagingmousebrainmodelcomparedwiththepositivecontroldrugKangnaoling.DESIGN,TIMEANDSETTING:Completelyrandomized,controlledexperimentbasedonneurobiochemistrywasperformedatthePharmacologicalLaboratory,HenanUniversityofTraditionalChineseMedicinefromSeptembertoDecember2003.MATERIALS:SchisandrachinensiswaspurchasedfromHenanProvincialMedicinalCompany.Schisandrachinensispolysaccharidewasobtainedbywaterextractionandalcoholprecipitation.KangnaolingpelletswereprovidedbyLiaoningTianlongPharmaceutical(batchNo.20030804;statedrugpermitNo.H21023095).Atotalof50six-week-oldKunmingmicewererandomlydividedintofivegroups:blankcontrol,model,Kangnaoling,highandlowdosageSchisandrachinensispolysaccharidegroups,with10micepergroup.METHODS:Miceintheblankcontrolgroupweresubcutaneouslyinjectedwith0.5mL/20gnormalsalineintothenapeoftheneckeachday,whiletheremainingmiceweresubcutaneouslyinjectedwith5%D-galactosesalinesolution(0.5mL/20g)inthenapefor40daystoinduceabrainagingmodel.Onday11,miceinthehighandlowdosageSchisandrachinensispolysaccharidegroupswereintragastricallyinfusedwith20mg/mLand10mg/mLSchisandrachinensispolysaccharidesolution(0.2mL/10g),respectively.MicefromtheKangnaolinggroupwereintragastricallyinfusedwith35mg/mLKangnaolingsuspension(0.2ml/10g),andthemiceinthemodelgroupwereintragastricallyinfusedwiththesamevolumeofnormalsal
简介:Schisandrachinensis,atraditionalChinesemedicine(TCM),hasbeenusedtotreatsleepdisorders.Zebrafishsleep/wakebehavioralprofilingprovidesahigh-throughputplatformtoscreenchemicals,buthasneverbeenusedtostudyextractsandcomponentsfromTCM.Inthepresentstudy,theethanolextractofSchisandrachinensisanditstwomainlignincomponents,schisandrinandschisandrinB,werestudiedinzebrafish.Wefoundthattheethanolextracthadbidirectionalimprovementinrestandactivityinzebrafish.SchisandrinandschisandrinBwerebothsedativeandactivecomponents.WepredictedthatschisandrinwasrelatedtoserotoninpathwayandtheenthanolextractofSchisandrachinensiswasrelatedtoseoroninanddomapinepathwaysusingadatabaseofzebrafishbehaviors.ThesepredictionswereconfirmedinexperimentsusingCaenorhabditiselegans.Inconclusion,zebrafishbehaviorprofilingcouldbeusedasahigh-throughputplatformtoscreenneuroactiveeffectsandpredictmolecularpathwaysofextractsandcomponentsfromTCM.
简介:银灰,典雅、金属,三大思想圈定了一款笔记本电脑,它像是商务的天使,也是休闲的玩伴。
简介:Inthispaper,asimplebutinherentrelationbetweentheL-integralandtheBueeknerworkconjugateintegralisprovedforcrackproblemsinisotropic,anisotropic,anddissimilarmateri-als,respectively.Itisfoundthat,intheabove-mentionedthreecases,theL-integral,fromthemath-ematicalpointofviewaswellasinprinciple,arisesfromBetti’sreciprocaltheorem.ThismeansthattheBuecknerworkconjugateintegralisamoregeneralpath-independentintegralthantheotherssinceanyotherpath-independentintegralscouldbederivedbyusin8theBuecknerintegralwhilechoosingadifferentsubsidiarystress-displacementfield.