简介：[目的]应用胎儿脐动脉血流S/D值监测≥孕36周住院孕妇,观察S/D值≥3时,对新生儿窒息和发生高危妊娠的临床意义.[方法]对1510例临床资料用脐血流S/D值,与胎心电监护(NST)和B超羊水量的测定进行分析比较.[结果]脐血流S/D值≥3组对新生儿窒息的阳性符合率均高于NST无反应组和B超异常组(P＜0.005).S/D值(≥3和＜3)两组中发生高危妊娠率比较差异有显著性(P＜0.005).[结论]脐血流S/D值检测是一种对母婴无损伤的有效监测手段,弥补了单纯用NST或B超预测判断新生儿窒息的不足,用脐血流S/D值检测配合NST和B超的综合方法来提高对胎儿监测的可靠性.

简介：“公共场所空气中可吸入颗粒物(PMl0)测定方法—光散射法”己作为卫生部标准正式发布实施。本文介绍了为执行该标准新研制的LD一3C型微电脑激光粉尘仪的性能指标和技术特点，并通过介绍激光粉尘仪质量浓度转换系数K值的测定实例，说明该仪器在公共场所空气质量检测中应用的可行性。

简介：采用光散射法快速测定公共场所空气中可吸入颗粒物（PM10）浓度的关键是确定质量浓度转换系数K值。在预防医科院环监所、环工所以及全国各地诸多卫生防疫站同志K值研究的基础上，本文就适用于公共场所PM10浓度监测的可见光光散射数字粉尘仪和激光粉尘仪的质量浓度转换系数（K）经验值的确定进行了介绍。“公共场所空气中可吸入颗粒物（PM10）浓度卫生检验标准方法－光散射光”已于1999年11月在福州获得全国环境卫生标准专业委员会审定通过。本文所介绍的K值经验值，已作为该标准的附录B被编入标准。

简介：癌症,一个可以在瞬间就改变我们的人生的词汇.癌症,看上去健健康康,感觉上也是通体舒畅,怎么就得了这种病?

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简介：Paget'sdiseaseofboneisafocaldisorderofboneremodellingcausedbyabnormallyincreasedosteoclast-mediatedboneresorption.qtleaffectedboneschangeinshaw,sizeanddirection,whiletherestoftheskeletonremainsnormal.TheclinicalconsequencesofthediseasewerefirstdescribedbySirJanlesPagetin1876(Figure1).

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简介：在本研究的期望值判断任务中,让他们在5种实验任务中进行期望值判断,　　关于儿童期望值判断的研究

简介：Objective:Toobservetheeffectofelectroacupuncture(EA)onMeniere'sdisease.Methods:Atotalof114cases(38malesand76females)ofMeniere'sdiseaseweretreatedwithEAofErmen(耳门TE21),Tinggong(听宫SI19),Tinghui(听会GB2),Yifeng(NFDB1风TE17),Fengchi(风池GB20)andBaihui(百会GV20).Thetreatmentwasgiven3timesaweek,9timesaltogether.Follow-upwasmadeattheendofthe3rd,6thand12thmonthsaftertreatment.Results:Follow-upin114patientsshowedthatafterEAtreatment,63cases(55.26%)werecured,30(26.31%)hadremarkableimprovementintheirsymptoms,10(8.77%)respondedwithimprovementand11(9.65%)failedinthetreatment,withatotaleffectiverateof90.35%.Conclusion:EAtreatmentwaseffectiveincontrollingMeniere'sdiseasepatients'symptomsandreducingattack.

简介：Therearemanycausesofpain.Generallyspeaking,inflammationisthemostcommoncause,followedbyinjury,ulceration,spur,chemicalstimulation,etc..Acupuncturehasitsuniqueeffectivenessoninflammationthatischaracterizedasredness,swelling,warmthandpain,includingneuritisandarthritis.

简介：Aim:Tostudypercutaneousabsorptionandmetabolismofketoprofenisopropylester(KPE)viaexcisednudemouse'sandmonkey'sskin.Methods:Excisedskinwaspreparedbysurgicalexcisionandenzymedigestion.Sideby-sidediffusioncellswereusedforinvitropermeationstudies.TheconcentrationsofKPEanditsmetaboliteinsampleswereassayedbyHPLC.Results:AllKPEpenetrationthroughwholethicknessskinandstrippedskinwasmetabolizedtoketoprofen(KP).theconcentrationofwhichinthereciiversolutionincreasedlinearlywithtime.Astothenudemouseskin.thesteady-statefluxofKPthroughwholethicknessskinwas2.5timesthatofKPEthroughthewhloethicknessskin,buttheKPandKPEremaininginthewholethicknessskinafterthefinishingofKPEpenetrationwas22.2timesincomperedwiththeKPremaininginthewholethicknessskinafterthefinshingofKPpenetration.TherateofformationofthesteadystateKPfromKPEthroughtdermiswassignificantlylowerthanthatofKPEthroughthewholethicknessskin.Inhemonkeyskin,therateofformationofthesteady-stateKPfromKPEthroughthewholethicknessskinwas0.7timesthatfromKPEthroughstrippedskin.TheKPandKPEremaininginthewholethicknessskinafterthefinishingofKPEpenetrationwas2.0timethatinthestrippedskinafterthefinishingofKPEpenetration.Therateoffornationofthesteady-stateKPfromKPEthroughdermiswaslowerthanthatfromKPEthroughthewholethicknessskinandthestrippedskin.theKPremainingindermisafterthefinsihingofKPEpenetrationwasalsosignificantlylowerthantheKPremaininginthewholethicknessskinandthestrippedskinafterthefinishingofKPEpenetration.Conclusion:KPestersareofbenefittoimporovethelocalactionofKP.andskinesterasemetabolismmainlydevelopsintheepidermis.

简介：提出一种因素对于多种疾病的综合效应值的概念以及估算方法，并应用Doll和Hill资料计算了吸烟的综合效应值。

简介：在给出二值图像多尺度表示方法的基础上,提出一种基于多尺度表示的细化算法,与目前已有的算法相比较,它的计算量小、抗噪性能好、便于硬件实现.实验结果表明,该算法很好地克服了传统细化算法的不足,为处理受强噪声污染的二值图像提供了一个新的思路.

简介：摘要目的为了了解孵育时间对抗HCVS/CO值的影响。方法采用ELISA法，对标本进行抗HCV检测。结果孵育时间延长可使阳性标本抗HCVS/CO值增高。结论为了确保检验质量，在采用ELISA法测定抗HCV时，应严格控制孵育时间。

简介：目的了解福建汉族人群D2S44、D10S28、D4S163VNTR多态性，为亲权关系概率计算提供基因频率。方法采用美国Lifecodes公司提供的VNTR检测试剂盒，应用RFLP技术首次对福建省9个地市103名汉族无关个体进行D2S44、D10S28、D4S163VNTR多态性研究，并将所得基因频率与中国台湾、香港、新加坡等地区进行比较。结果福建汉族人群三位点VNTR呈高度多态性，其杂合率分别为88．6％、86．3％、90．6％，呈孟德尔经典遗传，分布符合Hardy-Weinberg平衡定律。结论福建、台湾、香港、新加坡华人互为比较，D2S44、D10S28位点基因频率没有显著性差别(P>0．500)。

简介：Symptomatichepato-diaphragmaticinterpositionofabowellooporChilaiditi'ssyndromeisapeculiaranatomicalconditionmostoftenfoundbychance.Itsdescribedsymptomsrangefromintermittent,mildabdominalpainanddyspepsiatoacuteintestinalobstruction.Wereportacaseofhepato-diaphragmaticmigrationofthehepaticflexureofthecolonassociatedtoanunusual,heretoforeunreported,angina-likepainexclusivelyevokedbytheleftlateraldecubitus.Tomaximizethechanceofobservinganatomicalchangesindifferentpostures,computedtomographyofthechestandabdomenwasperformedafterairinsufflationintothecolon.Whilefrankherniationintothechestwasexcluded,thescanshowedthatthehepaticflexure-withtheinterpositionofthediaphragm-cameincontactwiththerightsideoftheheartintheleftlateral,butnotinthesupine,decubitus.Thisfindingwasreproducedbyechocardiographywhichalsoshowedvirtuallyunalteredhemodynamicsafterthechangeofposture.ECG,leftandrightventricularglobalandregionalfunctionaswellascardiacinjurymarkersalsoremainedunchangedduringthemaneuver,indicatingthatthepainevokedbythelatterwasunlikelyduetomyocardialischemia.ThiscasesuggeststhatChilaiditi'ssyndromeshouldbeincludedamongthepossible,althoughrare,causesofunexplainedangina-likesymptoms.

简介：In2001and2002,publicationoftheresultsofthreelargerandomizedcontrolledtriais(RCTs)changedourunderstandingoftherisksandbenefitsofhormonereplacementtherapy(HRT),leadingtonewguidancefromnationaladvisorybodiesonitsuse.Manyclinicaliyrelevantquestionsremainunanswered,butparadoxicallythereultsofrecenttrialsmayhavemadeitmoredifficulttodesignthestudiesnecessarytoanswerthesequestions.TheUKWISDOMtrial(oestrogen-progestogenvsplaceboinhealthywomen),forexample,hasbeendiscontinued.

简介：Overthedecade,ChineseBiomedicalEngineeringhasmaderemarkleprogressandaccumulatedmuchexperience.Animportantproblemfacingusishowtotaketheroadaheadofus.Firstofall,weshouldchangeourconventionalconceptandheadforthenewroad.Aboutthreeyearsago,wemadeaspecialreviewontheconnotationandchar-acteristicsofbiomedicalengineeringandpointedoutthatBiomedicalEngineeringwas

简介：目的构建CathepsinK(CTSK)基因慢病毒表达质粒,为进一步研究CathepsinK在人软骨细胞体外老化过程中的作用奠定基础。方法采用RT-PCR技术扩增CathepsinK基因的蛋白翻译区,通过连接、转化等分子生物学技术,将该基因克隆至慢病毒pLenti6-V5载体上,经BamHI、XhoI双酶切电泳筛选、鉴定并测序。结果从软骨细胞中成功地克隆出990bp的CathepsinK基因,并经酶切分析得到6．964Kb和1．005Kb大小的两片断,测序结果显示接头两端序列正确。结论通过基因克隆方法成功构建了CathepsinK基因表达质粒,可用于进一步的病毒包装,为深入研究该基因对软骨细胞老化的影响奠定了基础。

简介：阐述了可调PH值离子交换柱的原理与设计,进行了对照实验与分析,并就其工程实践和应用进行了讨论。