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BACKGROUND: In recent years, great advances have been made in human genetics. Many genes responsible for syndromic or non-syndromic hearing loss have been mapped. It was reported that the mutation of PDS gene causes classic Pendred syndrome as well as non-syndromic hearing loss.

背景：近年来，国外在人类基因的研究上突飞猛进，已经找到很多引起症候群或非症候群听障的基因，而已知PDS基因的突变，会引起Pendred症候群或非症候群听障（DFNB4）。

Results During isoprenaline administration the heart rate of arrhythmia in6cases went faster gradually and They were diagnosed as chronic sustained junctional tachycardia（3cases）and chronic atrial tachycardia（2cases）and sinoatrial reentrant tachycardia（1case）respectively;while the arrhythmias in other9cases disappered and turned to sinus tachycardiac and several minites after isoprenaline administration the arrhythmia in5cases recurred again,As a reˉsult,they were diagnosed non-paroxysmal ventricular（3cases）and non-paroxysmal junctional tachycardia（6cases）respectively.

结果 6例患者心动过速的频率逐渐增快，分别诊断为慢性持续性交界性心动过速（3例）、慢性房性心动过速（2例）和窦房结折返性心动过速（1例）；另9例异位心律失常消失，转变为窦性心动过速，停止滴注后数分钟5例再次出现原心律失常，诊断为非阵发性室性心动过速（3例）和非阵发性交界性心动过速（6例）。

Results During isoprenaline administration the heart rate of arrhythmia in6cases went faster gradually and They were diagnosed as chronic sustained junctional tachycardia（3cases）and chronic atrial tachycardia（2cases）and sinoatrial reentrant tachycardia（1case）respectively;while the arrhythmias in other9cases disappered and turned to sinus tachycardiac and several minites after isoprenaline administration the arrhythmia in5cases recurred again,As a reˉsult,they were diagnosed non-paroxysmal ventricular（3cases）and non-paroxysmal junctional tachycardia（6cases）respectively.

结果 6例患者心动过速的频率逐渐增快，分别诊断慢性持续性交界性心动过速（3例）、慢性房性心动过速（2例）和窦房结折返性心动过速（1例）；另9例异位心律失常消失，转变为窦性心动过速，停止滴注后分钟5例再次出现原心律失常，诊断为非阵发性室性心动过速（3例）和非阵发性交界性心动过速（6例）。

To determine the regulating role of mtlR in transcription of mannitol PTS operon in V.cholerae,and whether it plays a role in the ferment difference of the toxigenic and non-toxigenic strains,the mtlR deletion mutants from the mannitol rapid-ferment strain(non-toxigenic strain) and slow-ferment strain were constructed.Comparisons of the growth in M9 containing 0.2% mannitol as the sole carbon source and pH change in mannitol fermentation media of these wild strains and their mutants,indicated that mtlR is a repressor.Its repression in mtlCBA transcription was further verified with the analyses of quantitative reverse-transcriptional PCR.

通过比较快发酵菌株和慢发酵菌株mtlR缺失突变株与野生株在含0.2%甘露醇的M9培养液及甘露醇发酵液中生长、产酸等的变化，定性地证明了mtlR基因的抑制作用；另外通过定量RT-PCR进一步验证了MtlR蛋白在mtlCBA转录水平发挥负调控作用。

Based on Wu's general three-dimensional turbomachine flow theory, the flow field matrix line relaxation computer program was established for flow along the relative stream surface S2, employing non-orthogonal curvilinear coordinates and non-orthogonal velocity components.

针对叶轮机械S_2流面反问题的计算，介绍了使用任意非正交曲线座标和非正交速度分量的S_2流面反问题流场线松弛解法计算机程序。并对该程序与目前一般常用的速度推广法程序和矩阵直接解法程序的不同之处，作了简要的比较和评论。

The concept of ecological security design for nature reserves was firstpresented in this study.The conception of security should include non-military threats and non-military means of providing security,because withthe development of word economy and environmental cooperation,securityhas not been confined to military or state sovereignty,and environmentaldegradation often undercuts economic potential and human well-being,which in turm helps fuel social instability.

本研究首先提出了自然保护区生态安全设计的概念，认为安全概念应考虑非军事威胁和解决威胁的非军事手段，因为随着世界经济和环境交流与合作的不断发展，安全已不仅仅局限于军事和主权等领域，环境退化会削弱经济发展的潜力，影响人类社会的进步，导致社会的不稳定。

Preparation thechniques of buffer layers include both vacuum technology and non-vacuum technology. Chemical solution deposition method, a typal non-vacuum technology, is a high potential technique for large-scale industrial production since no expensive high-vacuum systems are used.

缓冲层的制备技术可分成以真空技术和非真空技术两大类，非真空技术以化学溶液沉积(Chemical Solution Deposition，CSD)为代表，不需要昂贵的真空系统，最可能实现大规模工业生产。

Preparation thechniques of buffer layers include both vacuum technology and non-vacuum technology. Chemical solution deposition method, a typal non-vacuum technology, is a high potential technique for large-scale industrial production since no expensive high-vacuum systems are used.

缓冲层的制备技术可分成以真空技术和非真空技术两大类，非真空技术以化学溶液沉积(Chemical Solution Deposition，CSD)为代表，不需要昂贵的真空系统，最可能实现大规模产业生产。

Viewing from the angle of the science of law and taking "rights" as the text for analysis,this article discusses the theoretical divergence on "the rights of nature" between the anthropocentrists and non-anthropocentrism.The anthropocentrists criticize the rights of nature from four aspects,its humanity,impracticality, uncontrollability and non-equivalence of its duties.The n...

从法学视角切入，以&权利&作为分析文本，论述了人类中心主义与非人类中心主义在&自然权利&上的理论分歧，人类中心主义者从权利的属人性、权利义务的不对等性、主张自然权利的非现实性以及自然权利的不可操作性四个方面对自然的权利提出了批判，而非人类中心主义者指出权利概念的在不断地扩展，人类中心主义不可能完全解决好人与自然的关系，自然权利存在着转化为在法律上具有可操作性的可能，并且自然权利理论已在法律实践领域拓展，对自然的权利进行了辩护，由此提出了&非人类中心主义&、&自然的权利&的环境伦理定位。

MTT may be used as a new photosensitizer underlight,non-light and different light energy intensity,with no toxic effectto C6 cells under non-light and increased toxicity under increased lightenergy intensity.

在光与非光、及不同光能量密度条件下应用MTT有可能成为新一代的光敏剂，其在非光照射时对C6无细胞毒作用，其细胞毒作用随光能量密度的增加而增强。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。