学科分类
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27 个结果
  • 简介:Thequantumvibrationalenergy-spectraincludinghighexcitedstatesoftheproteinmoleculeshavebeencalculatedbynewtheoryofbio-energytransportalongtheproteinmoleculesanditsdynamicequation,discretenonlinearSchrodingerequation,appropriatetotheproteinmoleculesonthebasisofthelevelofmolecularstructure.Thisenergy-spectraobtainedarebasicallyconsistentwiththeexperimentalvaluesbyinfraredabsorptionandradiatedmeasurementofperson'shandsandlaser-RamanspectrumfrommetabolicallyactiveE.Coli..Fromthisenergy-spectraweknowthattheinfraredlightswith(1-3)x1000nmand(5-7)x1000nmwavelengthcanbeabsorbedbytheproteinmoleculesinthelivingsystems.Inaccordancewiththenon-lineartheoryofthebio-energytransportweknowthattheenergyoftheinfraredlightabsorbedbytheproteinscanresultinvibrationsofamide-Iinaminoacidsandcanfacilitatethebio-energytransportalongtheproteinmolecularchainsfromoneplacetootherforthegrowthoflivingbodies.Thisprocesseisnon-thermal.Thisisjustnon-thermaleffectoftheinfraredlights.Accordingtothemechanismweexplainedfurtherthemedicalfunctionsoftheinfraredlightsabsorbed.

  • 标签: INFRARED light BIO-ENERGY transport energy-spectra NON-THERMAL
  • 简介:Osteocytesactasmechanosensorsinbone,whichcansendmechanicalsignalsdirectlytoosteoblaststhroughgapjunctions.However,underphysiologicalconditionsthenumberofgapjunctionsislimitedbecauseofthequantityvarianceofthetwokindsofcells.Inthisstudy,thepossibilityofindirectinteractionbetweenthesetwocellswasinvestigated.Anewflowchamperwasdesignedinwhichosteocytesandosteoblastswerecoculturedintwochampersseparately.OsteocyteswereexposedtofluidflowandthentheALPactivity,osteocalcinandosteopotinofosteoblastsweredetermined.TheresultsshowedthateitherALPactivityorproductionofosteocalcinandosteopotininosteoblaststhatwerecoculturedwithshearedosteocytesincreased,whichindicatedthatosteocytescouldregulateosteoblastsindirectlythroughsomesolublefactors.

  • 标签: 生物医学工程 人工脏器 人工器官 生物力学
  • 简介:ImmobilizationusinglittlesplintisanoriginalinnovationofChinesepeopleforthefracturefixation,whichissimpletouseandclinicallyeffective.ItwasfoundthatChineseimmobilizationusinglittlesplintcanmakethenon-invasive,uncovering,andtroublefreehealingofbonefractureviaharmoniousunityofthestructurestabilityandtheforcebalance,ofthemotionstabilityandthestressadaptability,oftheconstantanddiscontinuousphysiologicalstress.ThebiomechanicaleffectofChineseimmobilizationusinglittlesplint,includingentirety,dynamic,andfunctionalfixity,istherootcauseofitsinheritanceandtheuseuptonow,andalsoisadirectionoftoday’sfracturefixationtowardspersonalization,individualityandentirety.

  • 标签: 夹板固定 生物力学 中国人 骨折固定 运动稳定性 结构稳定性
  • 简介:EFFECTOFHe-NeLASERONTHEASTHMATICSUBJECTSEFFECTOFHe-NeLASERONTHEASTHMATICSUBJECTSGuGuoxian;WuSuying;RenJlnyun;WangFuqiang(Depa...

  • 标签: LASER
  • 简介:CLINICALANDEXPERIMENTALSTUDYOFKILLINGEFFECTONHELICOBACTERPYLORICLINICALANDEXPERIMENTALSTUDYOFKILLINGEFFECTONHELICOBACTERPYLOR...

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  • 简介:Theexperimentalstudywasperformedin78rabbits,theexposedanteriorven-tricularsurfaceoftheopen—chestrabbitswereimpactedwithapendulum—likemovementimpactorsystemwhichwascontrolledbytheCardiaccycle.Undrsomegivenconditions,theexperimentalresultswereasfollows:(1)Theimpactsat5.0m·s-1resultedinnocardiacruptureinallattemps(16/16)attheendofsystoleas

  • 标签: IMPACTED EXPOSED RUPTURE IMPACT cycle CHEST
  • 简介:ThetherapyofUBI(TheUltravioletirradiationoxygenateBloodItself-transfu-sion)isusedtotreat69casesofthepatientswithcerebralinfarctionwhichareallprovedtobecerebralinfarctionbythescanningofCT.TheeffectsofUBIonthenailfoldmicrocirculationofthepatientswerestudiedwith“WeightedMultipleScoreofthenailfoldmicrocirculation”workedoutbythemicrocirculationalspecialgroupP.L.A.Comparedwiththesameagedhealthyperson,theMultiplescoreofthenail

  • 标签: IRRADIATION swith remarkable worked Blood absorbed
  • 简介:Theeffectofage-relatedbonelossonthestructuralcapacityoftheproximalfemurwereinvestigatedbyFiniteElementAnalysis(FEA).Fourbonelosspatternswereconsidered.Thesewere'uniformcorticalboneloss','neckcorticalboneloss','intertrochantericcorticalboneloss'and'uniformtrabecularboneloss'.Theresultsshowthatthetwo'non-uniformcorticalboneloss'patternsaremoredangerousthanthe'uniformcorticalboneloss'pattern,andthatthecorticalbonelossinintertrochantericregionisassociatedwithagreaterreductionincorticalfailureloadthanthecorticalbonelossinthefemoralneck.Thetrabecularbonelosscausesalimiteddecreaseinbothcorticalfailureandtrabecularfailureloads.Thisresearchshouldbehelpfultotheclinicalassessmentoffemurfractureriskduetoage-relatedboneloss.

  • 标签: PROXIMAL femur FEA Structural Capacity Age-related BONE LOSS
  • 简介:Tocleanoutthesmearlayeronteethsurface,andprotecttheteethmedulla,theexperimentappliedthestudyobservingthecleanupofsixgroupsofsurfacesmearlayerofdentalcariesandthetubuleplugsreservingeffectafterusingofdifferentcavitycleanserswiththehelpofSEM.Theresultimpliedthatboththeacidicpreparationsandchelatorcouldcleanoutthesmearlayeron.teethsurfaceinsomeway,butthelateronecouldalsoreservepartialtubuleplugs,whichreducethestimulationtotheteethmedulla.Sothechelatorisbettercleansersinclinicaluse.

  • 标签: SEM SMEAR layer TUBULE plugs CAVITY
  • 简介:SincetheinventionofRubylaserbyMaimanin1960s,manykindsoflasersareusedwidelyindentistry.Ithasbeenprovedthatlaserirradiationcanproduceacidetchinglikesurface,thusstrengthenthebondofmaterialtoenamel.Buttheheatgeneratedduringirradiationproducesdamageondentalpulp,whichlimitsthelaserapplicationsondentalhardsurfaces.

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  • 简介:Objective:Toobservetheeffectofstatinsonpreventingparoxysmalatrialfibrillation(PAF)afterpacemakerimlantationinpatientswithsicksinussyndrome.MaterialsandMethods:68patientswereselectedinwhichthepacemakershadbeenimplantedduetosicksinussyndrome,andwererandomlydividedintoastatintreatmentgroupandacontrolgroup.Afterthepacemakerimplantation,onlythepatientsintreatmentgroupweregiven20mgatorvastatinoncepernight,withotherconditionsbasicallysimilartothoseinthecontrolgroup.Atthe3rd,9th,15th,and21stmonthsaftertheimplantation,thepacemakerswereprogrammed,andthePAF-relatedinformationstoredinthepacemakerwererecalledandanalyzedstatistically.Results:Aftertheadministrationofstatinsfor9monthssincetheimlantation,theoccurrenceratesofPAFinthetreatmentgroupwasrelativelylowerthanthoseinthecontrolgroup.Afterfurtheradministrationofstatinsfor15months,boththeoccurrencerateofPAFandtheburdenofatrialfibrillationinthetreatmentgrouphadsignificantlydeclined.Aftercontinuousadministrationofstatinsfor21months,boththeoccurrencerateofPAFandtheburdenofatrialfibrillationinthetreatmentgroupweresignificantlylowerthanthoseinthecontrolgroup.Conclusion:Long-termadministrationofstatinscanreducetheriskofPAFaftertheimplantationofapacemakerinpatientswithsicksinussyndrome.

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  • 简介:Theresearchgroupwasinterestedinthetherapeuticpotentialoflimbalfibroblasts,whicharepre-sentinthecorneallimbus.Recently,inmuchstemcellresearch,researchersandadvocatesarestress-ingtheimportanceofutilizingcellsfromthenichewhichtheywilltarget.Thismeans,thatadiposetissueandbonemarrowderivedstemcells,arelikelynotappropriateandevendangeroustoapplyu-biquitouslyastherapiestootherpartsofthebodyincertaincases.Severalresearchgroupsandclini-caltrialshaveshownthistobethecase,includingcasesofblindness,braininflammation,anddeathasadverseevents.

  • 标签: EFFECT of MICROGRAVITY on the Mesenchymal
  • 简介:TheeffectofQiGongreflectedbyrheoencephalographyandheartratewerestudiedinthispaper.ThefunctionalrelationshipbetweenwaveamplitudeandtheheartratesreflectedbytwoprocessesofQiGong,“JingGong”forenergyprovoca-tive,and“FaGong”forenergyreleasehavebeencomparedandanalysed.28casesofwelltrained“QiGong”practitionersvolunteerinthisstudy.Therheoencepha-

  • 标签: WAVE QI GONG THE EFFECT OF
  • 简介:EFFECTOFSUCPENDINGMEDIUMVISCOSITYONORIENTATIONANDDEFORMATIONOFRBCSINASHEARFlOWFIELDWenZong-yao,MaWeiyuan,GaoTie,SunDagongDepa...

  • 标签: :constant head VESSEL DIALYSIS hypoxemia.
  • 简介:Objective:TheaimofthisexperimentistostudytheeffectofthreemethodsofsurfacemodificationonthecorrosionresistanceofcommercialpureTitaniumwhenusedinoralenvironmentforhalfayear.Method:48specimensofpuretitaniumweremadeanddividedintofourgroupsrandomly,onegroupwasselectedrandomlyasGroupⅠ(controlgroup),theotherthreegroupsweretreatedbythreemethodsofsurfacemodificationindividually,GroupⅡ:heatingoxidationinair(400℃,30min.),GroupⅢ:anodization(45volts,10min.),GroupⅣ:TiNcoating(firingtemperature200℃,totalcoatingtime62min.).Sixedentulousvolunteerswithhealthyoralmucosaparticipatedintheinvivostudy.Onetestingpiecefromeachgroupwasselectedandfixedinthepolishedsurfaceofuppercompletedentures.Dynamicpolarizationcurvesweretracedwithelectrochemicalmethodafterthespecimenswereplacedeitherinoralcavityorinairfor6months.Results:Afterallspecimenswereused,Ecorralteredineverygroup,Ecorrfromhightolowwereinturn:TiNcoatinggroup>heatingoxidationgroup>anodizationgroup>controlgroup,noobviouspassivepotentialEpandIpwasfoundincontrolgroup.HeatingoxidationinairexhibitedsimilarEptoanodization,butIpwasremarkablylowerthanthatofanodization;TiNcoatingshowedobviouslydifferentpolarizationcurvescomparedwithheating-oxidationgroupandanodizationgroup,Ecorrwaspositive,andnoEpandIpwasfound.Conclusion:Underpresentexperimentalcondition,allthethreetreatmentmethodscouldenhancecorrosionresistanceofpuretitaniuminoralenvironment,heatingoxidationinairexhibitedbetterresistancetocorrodethananodization,TiNcoatingpossessedthemostexcellentcorrosionresistance,evenafterexposedinoralconditionfor6months,therewaslittlechangeofcorrosionresistance.ThereforeTiNcoatingcouldbeadoptedtoimprovecorrosionresistanceofpuretitaniuminoralenvironment.

  • 标签: Surface modification Pure Titanium Corrosion Heating oxidation Anodization TiN coating
  • 简介:CoriolisForceisthePrimaryCauseofRight-leftAsymmetry.Ananimalmov-ingontheNorthernHemispherebearsCoriolisforcewhichisperpendiculartothevelocityofthemotionandwhichpointstotherightoftheanimal.Thisright-direct-ingforcewillbedenotedbyFc.Itactsthroughoutthelifeofananimal;indeed,throughoutthelivesofallofitsancestors,fromthefetaltoadultstagesineverypartofthebody.Let’sconsiderfirstabodywithtwolegsslidingonearth.Therightlegwouldsustainalargerforcethantheleftleg.Acomplexsystemofmus-

  • 标签: sustain CORIOLIS fetal sliding LIVES indeed
  • 简介:Toimprovemicrowavehyperthevmiaincancertherapy,thethermaleffectoffer-rimagneticresonance(FMR)duringmicrowaveirradiationwasstudied.Resonanttemperatureelevation(RTE)ofsinglecrystalgrainandpolycrystalpowderofresonantmediawasmeasuredaloneandinimitativemuscleandeggwhiteandinmice.TheresultsindicatedthattheRTEproducedbyFMRcouldbeusedtoimprovepenetrationdeepness,heatingselectivityandtemperaturedistributionofmicrowavehyperthermiaincancertreatment.ItwasexpectedthatthepotentialfunctionoftheFMRheatingsystemwouldbeex-ploitedgreatlyforcancertherapy,andthenmagneticallyguidedmicrowavehyperthermiathera-py,chemotherapy,radiotherapyandimmunotherapymighthecombinedmultiplywithinthissys-tembymeansofthestaticmagneticfield(SMF)andmagneticmicrocarrier.Limitationofreso-nantheatingwasalsodiscussedinthispaper.

  • 标签: magnetical guidance FERRIMAGNETIC RESONANCE MICROWAVE HYPERTHERMIA