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1.
DROPLETDISPERSIONANDCOALESCENCEINAPOLYMERBLENDINFLOWFIELDSZhangHongbin(张洪斌)(PolymericMaterialsResearchInstitute,ShanghaiJiaot...  相似文献   

2.
Occlusivevasculardisorders,bothvenousandarterial,aresomeofthemostcommoncausesofmorbidityandmortalityindevelopedcountries.Theaimoftherapyinsuchconditionsis,firstly,torestoreandmaintainbloodflowtotheaffectedtissueororgan,andsecondly,torestorethesystemtothenormalhaemostaticstatewithoutovercompensatingandproducingcomplicationssuchashaemorrhage.Thrombolyticagents,suchasrecombinanttissueplasminogenactivator(rt-PA),arewidelyusedinthetreatmentofpatientswithacutemyocardialinfarction.However,successful…  相似文献   

3.
EFFECTOFLIGUSTRAZINEONHEMODYNAMICSOFMESENTERICCAPILLARYINHEMORRHAGICSHOCKINRABBITSYueYili;ChangLigong;ZhouHongwei;(Department...  相似文献   

4.
GLUTAMATE-IMMUNOREACTIVENEURONSINMEDULLARYRAPHE-CEREBELLUMPATHWAYINTHEKITTEN(江赛男),(刘荣桓)JiangSainan;,SimonJ.Fung;LiuRonghuan;,...  相似文献   

5.
SMALLBRAINABSCESSINCHILDRENLiRuilin;HeGuangzu;ChenZhengqi;(DepartmentofPediatrics,SecondAffiliatedHospital,Xi'anMedicalUniver...  相似文献   

6.
INSITUEXPRESSIONOFTHECELLADHESIONMOLECULEINGASTRICCARCINOMAANDCHRONICGASTRITISChenGaoping(陈高平);LiuYong(刘勇);RenHuimi(任惠民);LiHe...  相似文献   

7.
Objective To explore the effect of Ligustrazine on neurogenesis in cortex after focal cerebral ischemia in rats. Methods Focal cerebral ischemia was induced by left middle cerebral artery occlusion with a suture. Two hours later, injection of Ligustrazine (80 mg/kg, 1 time/d) was performed peritoneally. Four hours after the ischemia, 5-bromodeoxyuridine (BrdU) (50 mg/kg, 1 time/d) was injected peritoneally. At 7 d, 14 d and 21 d after ischemia, BrdU positive cells in the cortex were observed by cal staining. Results In ischemic model group, at 7 day, sparsely-distributed BrdU positive cells were observed in the Ⅱ-- Ⅵ layers of the ipsilateral cortex, with a bandlike distribution in ischemic penumbra. With the prolongation of ischemia, the number of BrdU positive cells increased. In Ligustrazine group, BrdU positive cells were also observed in theⅡ-- Ⅵ layers of the cortex, with an intense distribution in ischemic penumbra. The numbers of BrdU positive cells at 7 d, 14 d and 21 d were more than those in ischemic model group respectively. Conclusion Ligustrazine increases the proliferated cells in cortex after focal cerebral ischemia in rats. The results suggest that it may be useful for promoting self-repair after ischemia.  相似文献   

8.
IntroductionSince the pioneering work of Büttiker etal[1,2 ] ,the problem of persistentcurrent in a meso-scopic ring has attracted much recent atten-tion[3~ 6] . In a normal- metal ring threaded by amagnetic flux,a persistent current exists as longas the phase coherence of electron is pre-served[1,2 ,4 ] . With the gauge transformation,thevector potential can be removed from Schrodingerequation with a modified boundary conditionψn(x L ) =exp(2πi/0 )ψn(x) ,where0 =h/e is theflux q…  相似文献   

9.
The prostateisthemaintargetorganofandrogen .Abnormalstructureandfunctionoftheandrogenreceptor (AR )willdirectlyaffecttheregulatingactionofandrogenonthe prostate ,andprobablyresultinbenignprostatehyperplasia (BPH )andprostaticcarcinoma (PC) [1,2 ] .Toprobeintother…  相似文献   

10.
Achallengingtaskoffutureintelligentvehiclesisroadfollowing .Itincludeslanedetection (whichmainlystudiesthelocalizationoftheroad ,thede terminationoftherelativepositionbetweenvehicleandroad ,andtheanalysisofthevehicle’sheadingdirection) ,andobstacledetection (whichmainlystudieslocalizationofpossibleobstaclesonthevehi cle’spath) .Lanedetectionistheproblemoflocat inglaneboundarieswithoutpriorknowledgeoftheroadgeometry .Moregenerally ,however,lanede tectionhasbeenreducedtothelocalizationofspecif…  相似文献   

11.
Allograftrejectionisanimportantfactorofin fluencingthelongtermsurvivalofallograftinhu manorgantransplantation .Immunologicaltoleranceinductionisamain partintheresearchoforgantransplantation .Tostudytheimmunologicalandmolecularmechanismofrejectionandseek…  相似文献   

12.
FLOWCHARACTERISTICSINDIVIDINGFLOWMANIFOLDSWangJunye(王峻晔)(Dept.ofEnergyEngineering,ShanghaiJiaotongUniv.,Shanghai,China)WuDong...  相似文献   

13.
ClinicalandexperimentaldatahaveshownthatprolongationoftheQTintervalmeasuredfromthestandard12-leadECGisriskfactorforventriculararrhythmiaandsuddendeath〔1〕.ElectrophsiologicstudiessuggestthatQTintervalprolongationisassociatedwithincreasedregionalhetero…  相似文献   

14.
MEDIASYNCHRONIZATIONSTRATEGIESINVODSYSTEMFeiXiaoqiang(费晓强)ShiPengfei(施鹏飞)(InstituteofImageProcessingandPaternRecognition,Shan...  相似文献   

15.
Irritablebowelsyndrome(IBS)isacommon functionalgastrointestinaldisorderinpopulations.RecentstudieshaveshownthatpersistentIBSsymp tomsdevelopedinbetween7%and31%ofsubjects afterinfectiousgastroenteritisandtransientinflam mationenteritis[1].Thisassociationis…  相似文献   

16.
Thehumangustatorysystemcanidentifyfivedifferenttastequalities:sweet,sour ,bitter ,saltyandsavory (umami) .However,thetastepercep tionscanchangewhenmultipletastestimuliarepre sentedtogether .Theelectrophysiologicalstudiesinthecorticaltasteareainratsshowedthatthemixtureofthefourbasictastantscausedresponsesuppressionmorefrequentlythanresponsefacilitation [1 ] .Vogtandhiscolleagues[2 ,3 ] investigatedtheresponsesofsingleneuronsinparabrachialnucleus (PBN)toan teriortonguestimulationwithbinarymixtu…  相似文献   

17.
Internet is heterogeneous in nature,and ex-tremely wide variations in parametric perturbationlead to a very rich world of dynamical behaviorsranging from s mooth,stable operation to rathercomplicated irregular patterns.In[1],the occur-rence of chaotic behavior in TCP has been reportedfor the first ti me.Since the seminal work of Mathisand Floyd[2-3],there have been increasing interestsin the dynamical characteristics of Internet.In theprevious work,TCP congestion control algorithmplus RED…  相似文献   

18.
IntroductionWith the development of automation and con-trol technology,on car- body plant,at present,consideration of multi- robot systems has become abasic requirement. With the help of multi- robotsystems,we can shorten production time,improveproduction quality and quantity,and decrease pro-duction error rate. Buthow multi- robots can coop-erate with each other,especially on welding pro-duction line for car- body,is what we concernabout the most.We hope to find a good way toplan out paths fo…  相似文献   

19.
Thecorrelationofmeridian visceraisthecoreofthemeridiantheoryofTraditionalChineseMedicine .Someresearchersthinkthatthemorphologicalstructurebasisofthecorrelationofmeridian visceraisthenervesegmentarrangementofthesomatictissuesandvisceralorgans .However ,t…  相似文献   

20.
Objective To study the expression of Nestin and glial fibrillary acidic protein (GFAP) in different period after spinal injury in adult rats. Methods Animal moels were created by artery clamp. Expression of Nestin and GFAP in different period ( 1,3,5days; 1-8 weeks) and different area( injury locus and its surrounding tissue ) after spinal injury were observed pathologicaly using immunofluorescence and LeicaQ5001W imaging processing system.Results There was expression of Nestin and GFAP in injured area 1 day after injury. The expression increased not only in in injured area but its sourrounding 3--7 days later and gradually got to peak value. As the time went on, expression of Nestin and GFAP dereased. Conclusion Spinal injury can induce the expression of Nestin. Nerve stem cell has response to spinal injury. There is positive correlation between expression of Nestin and hyperplasia of reactivity astrocyte. Nerve stem cell maybe invovled in the repair of central nervous system (CNS).  相似文献   

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