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INTRODUCTIONAntisenseoligodeoxynucleotides (ASODN )caninhibittranscriptionandinterferewithspe cialgeneexpression .AfixedpointontheK rasgenewithhighmutationrateinpancreaticcarci nomaoffersanintracellulartargetforpancreaticcarcinomagenetherapywithASODN (Cai… 相似文献
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辛勇红 《齐齐哈尔师范高等专科学校学报》1996,(2)
表语形容词后接宾语WORTH的结构特征辛勇红1.英美词典对worth用作形容词所标词性并不相同,但后面须接宾语是一致的。ChambersTwentiethCenturyDictionary"把"worth"列为adj.形容词。OALD与PocketO... 相似文献
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INTRODUCTIONAcuterenalfailure(ARF),usuallyreferredtoasacutetubularnecrosis,isacommonsyndromecharacterizedbyanabruptandsustaineddeclineinglomerularfiltrationwithresultantazotemia,causedbyacuteischemicand/ortoxicinjuries.Itisnotimmediatelyreversiblewhenca… 相似文献
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INTRODUCTIONLetZ ,N0 andNdenotethesetsofinte gers,non negativeintegersandpositiveintegers,respectively.Andletχ ={Xi} i∈Zdenotease quenceofreal valuedrandomvariablessuchthatEXi =0andEX2 i =σ2 X i∈Z .Anyrealizationofthesequence {Xi} i∈Ziscalleda“randomscenery” .Lety ={… 相似文献
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INTRODUCTIONAnimportantpartinthepulpingandpapermakingindustryistherefiningprocess.Whethertherefinedpulpisgoodornotiscrucialforachievingconsistentpulpquality.Whatpeopleexpectandstriveforintherefiningprocessisguaranteedrefinedpulpquality,safetyinproduct… 相似文献
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OBSTACLE DETECTION BY ALV USING TWO 2D LASER RANGE FINDERS 总被引:6,自引:0,他引:6
INTRODUCTIONObstacleavoidanceisanessentialtaskoftheALV .Toachievethis,aquickandreliablede tectionofobstaclesisveryimportant.Severalclassesofactivesensorscanbeusedforthispur pose .Alaserrangefinder (LRF)cansuitablybeusedtodetectobstaclesaheadoftheALV .3DLRFs… 相似文献
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INTRODUCTIONAnAdeno associatedvirus(AAV)particleiscomposedofthreestructuralproteinsandalin ear ,single strandedDNA (ssDNA)genomeofapproximately 4 .7kb .AAVisadefectivehu manparvovirusthatnormallyreplicatesproduc tivelyonlyinthepresenceofhelperfunctionsprovide… 相似文献
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INTRODUCTIONTomeettherequirementsofEMIstandard ,switchingmodeconvertersshouldlimititsswitchingrippleofinputcurrenttoalowlevel.OneofthetypicaltraditionalmethodsistoplaceacostlyandbulkyEMIfilterattheinputcircuitoftheconverter.ForAC DCconverterstheinputfi… 相似文献
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《清华大学教育研究》1995,(Z1)
STATEBUDGETINGINTHEUNITEDSTATESMONICAZHONGAsacentralelementofgovernment,budgetingis″adecisionmakingsystemforallo-catingfundsa... 相似文献
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《信阳师范学院学报(哲学社会科学版)》1994,(2)
ADiscussionOntheRangeofMeaningofEnglishWords──AnApproachtoEnglishWordsLearningQiHaoZhenSuccessinEngllshrequiresaknowledgeofwo... 相似文献
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瓜沙二州间一块消失了的绿洲 总被引:1,自引:1,他引:1
《家教指南》1994,(3)
瓜沙二州间一块消失了的绿洲李并成AnOasisDisappearedbetweenGuazhouandShazhou¥LiBingchengJudgingfromDunhuangManuscripts,historicaldataandon-the-... 相似文献
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THE POLYMERIZATION OF METHYL METHACRYLATE WITH A NEW TIN-BRIDGED YTTROCENE/Al(i-Bu)_3 总被引:1,自引:0,他引:1
INTRODUCTIONSincethepolymerizationofmethylmethacrylate(MMA)withrareearthcatalystswasrealizedforthefirsttimein1991,aseriesofnewrareearthcatalystsystemssuchasNd(P204)3/Al(iBu)3,Nd(P204)3/Al(iBu)3/CCl4,Nd(Oct)3/Al(iBu)3,Ln(acac)3/BuMgCl,Y(acac)3/Al(iBu)3/BuLi,Nd(naph)3/BuLi,andNd(O… 相似文献
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INTRODUCTIONThegenerationofwasteswillbeincreasedwiththerapiddevelopmentoftechnologiesandindustrialpractices.Alargeamountofhazardousortoxicwastesisgeneratedintheprocessingin dustry(Nathanson ,1 986) .Althoughconvention alend of pipewastetreatmenthasprovedtobe… 相似文献
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INTRODUCTIONItisknownthattheapplicationofanAll Op ticaltypeSiliconMicroResonator (AOSMR)orsensorisgreatlyrestrictedbytheproblemofop ticalcoupling (Guckeletal.,1 993;Pitcheretal.,1 990 ) .Thevibratorsurfaceisusedforopti calexcitationandvibrationpickupinanumberofAOS… 相似文献
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INTRODUCTIONPositronEmissionTomography (PET)isapowerfulbiologicalimagingtoolcapableofpro vidinghighqualityfunctionalimages.Aradioac tivelylabelledsubstance,designedtoshowthephysiologicalfunctionofaparticulartissue,isinjectedintoapatient.Thechosensubstanc… 相似文献
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朱雪雯 《中国远程教育(综合版)》1996,(1)
亚太地区开发人力资源的远距离教育研讨会会综述朱雪雯1995年10月24—27日,在上海召开了题为“开发人力资源的远距离教育”(DistanceEducationasanAsPectofHumanResourceDevelopment)地区研讨会。会议... 相似文献
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《中山大学学报论丛》1996,(3)
Mask,AConveyanceofIsolationandDeath:OnMourningBecomesElectraYangYanhengEugeneONeil(1888~1953)isesteemedasthegreatestdramatis... 相似文献
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INTRODUCTIONOn lineseparationandpreconcentrationhavereceivedconsiderableattentioninflowinjectionanalysiscoupledwithatomicabsorptionspec trometryduringrecentyearsandiswidelyap pliedforselectivityandsensitivityenhancement(Fang ,1 995 ) .Automationofthesamplep… 相似文献
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INTRODUCTIONManyflowsandheatexchangesinengineeringoccurincomplexregions.Inthestudyofcomputationalfluiddynamics,thegenerationofbodyfittedcoordinatesforthesecomplicatedareasisgenerallyacriticalrequirementforaccuratenumericalflowsimulations.Apoorlyconstr… 相似文献
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StressAnalysisoftheGlassBulbof35-inch(V)120°ColorPictureTubeTorongeyPeterKimanus(MoiUniversity,DepartmentofPhysics,P.O.Box390... 相似文献