8 research outputs found

    Thomas Hobbes' Theory of Sovereign and Law--Based on Leviathan

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    托马斯·霍布斯是近代哲学和政治理论的奠基者之一,他的主权者和法律思想作为他国家理论的主体,占有重要地位。但是霍布斯的论述相对分散,即使在《利维坦》这本具有代表性的著作中,有关主权者与法律的论述也是散见于各个章节之中。因此本文旨在将有关主权者与法律思想分散性的论述按照一个独立思维逻辑进行归纳、整理,展示出霍布斯主权者在法律这个角度的独特面貌。 本文包括三部分内容,分别是导言、正文和结语,其中正文有四章:第一章介绍了霍布斯主权者思想的历史背景与基础理论,作为霍布斯论述主权者理论的铺垫。第二章介绍了霍布斯的主权者理论,明确本文的论述主体,深入了解主权者在霍布斯国家学说中的特殊含义,并为论述主权者与...Thomas Hobbes is one of the founders of modern philosophy and political theory. His sovereign and legal thought occupies an important position as a principal part of his state theory. But the arguments are relatively scattered, even in leviathan, the representative work of Hobbes, relative discourse on sovereign and law is dispersed in different chapters. So this article aims to gathering the so...学位:法学硕士院系专业:法学院_法学理论学号:1362013115015

    Study of Disease Resistant on Grass Carp Reovirus by Antisense RNA and RNA Interference(RNAi)

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      转基因技术是20世纪80年代发展起来的一项重要技术,通过向受精卵或早期胚胎中导入外源DNA,能有目的地对生物的遗传物质基础进行修饰,改造,培养出新的品系。鱼类转基因研究的一个重要方向就是定向育种,即通过转基因改良生产性状,如快速生长,抗病虫害,抗冻,抗盐碱等。随着RNA干扰现象的发现与反义技术的出现,人们已将RNAi与反义技术发展成为重要的基因治疗的新手段。   本研究利用RNAi与反义技术,以草鱼出血病为模型,稀有鮈鲫为模式动物,针对草鱼出血病病毒(GCRV)外壳蛋白VP7序列的cDNA片段构建shRNA表达载体pH1-siGCRV-pZero及反义载体pCAVP7c antisense,采用显微注射方法,将外源基因导入稀有鮈鲫受精卵,获得P0代转基因稀有鮈鲫。对培养至性成熟的P0代转基因稀有鮈鲫进行了攻毒实验,通过对攻毒后死亡时间的统计和转植基因表达的检测,得出以下结果:①转shRNA表达载体的稀有鮈鲫死亡率明显低于对照组,至攻毒后第20天死亡率仅有30%,而对照组在攻毒后第12天死亡率均达到100%;②反义组转基因稀有鮈鲫与对照组在死亡率上没有显著差异,但从死亡趋势线上可以看出反义组死亡峰值明显滞后于对照组,相差约18h,死亡峰值滞后与转植基因的表达相关。由此可以得出,不论是RNAi还是反义技术均能有效的抑制病毒的繁殖,具有一定的抗病效果。  Gene-Modified technology was development in 1980s which targeted to modify the genetic elements by the foreign DNA trasfered to oosperms or earlyl embryoes. In fishery, the new gene-modified oragnism(GMO)had better characters such as growth faster, disease-resistant, antifreeze and tolerance of salt or alkali.Recently,while RNA interference(RNAi)and antisese technology appearanced,it became a significant new strategy for gene therapy.   This project aims to pineer new approaches developed in the last few years to tackle the viral diseases in fish. For such purpose, we use Gobiocypris rarus and GCRV as a model system to study RNAi and antisese RNA antiviral functions in fish and combine transgenic technology to potentially generate disease resistant fish strains. We produced the shRNA expression vector named pH1-siGCRV-pZero and the antisese expression vector named pCAVP7c antisense according to the VP7 cDNA sequences. Two gene-modified fish were geined by microinjected the two vector to Gobiocypris rarus embryoes. 3 monthes later,such fishes were infected with GCRV 991 strain. The fishes with antithesis gene or without forgein gene were 100% dead in 12dpi (day-post-infection), while the fishes with pH1-siGCRV-pZero were only 30% dead lasting to 20 dpi. Between the fishes with pCAVP7c antisense and without forgein gene there were no noticeable differences with the death rate. But the death peak of the fishes with antisense expression vector was obviously 18h later than the fish without foreign gene,according to the expression of the foreign gene

    抗草鱼出血病病毒转基因稀有鮈鲫的初步研究

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    研究采用草鱼H1基因启动子,以草鱼呼肠孤病毒(Grass carp reovirus,GCRV)外衣壳蛋白VP7基因为靶基因,以增强型绿色荧光蛋白(eGFP)为报告基因,构建了3个小发卡RNA(shRNA)表达载体pH1siGCRV(x)-CMVeGFP。CIK细胞感染实验表明,pH1siGCRV2-CMVeGFP具有较高的病毒抑制作用。通过显微注射将pH1siGCRV2-CMVeGFP导入稀有鮈鲫(Gobiocypris rarus)受精卵,获得转基因稀有鮈鲫P0代群体。转基因稀有鮈鲫攻毒实验显示,转基因稀有鮈鲫死亡率为30%,抗草鱼出血病能力显著提高。进一步的实时荧光定量PCR检测证实,转基因稀有鮈鲫脾脏、后肠和肝脏中GCRV的含量显著低于对照鱼,并随着时间的延续逐渐减少,转基因稀有鮈鲫体内GCRV的复制受到有效抑制。研究为抗草鱼出血病转基因鱼育种奠定重要基础

    抗草鱼出血病病毒转基因稀有鮈鲫的初步研究

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    研究采用草鱼H1基因启动子,以草鱼呼肠孤病毒(Grass carp reovirus,GCRV)外衣壳蛋白VP7基因为靶基因,以增强型绿色荧光蛋白(eGFP)为报告基因,构建了3个小发卡RNA(shRNA)表达载体pH1siGCRV(x)-CMVeGFP。CIK细胞感染实验表明,pH1siGCRV2-CMVeGFP具有较高的病毒抑制作用。通过显微注射将pH1siGCRV2-CMVeGFP导入稀有鮈鲫(Gobiocypris rarus)受精卵,获得转基因稀有鮈鲫P0代群体。转基因稀有鮈鲫攻毒实验显示,转

    抗草鱼出血病病毒转基因稀有鮈鲫的初步研究

    No full text
    研究采用草鱼H1基因启动子,以草鱼呼肠孤病毒(Grass carp reovirus,GCRV)外衣壳蛋白VP7基因为靶基因,以增强型绿色荧光蛋白(eGFP)为报告基因,构建了3个小发卡RNA(shRNA)表达载体pH1siGCRV(x)-CMVeGFP。CIK细胞感染实验表明,pH1siGCRV2-CMVeGFP具有较高的病毒抑制作用。通过显微注射将pH1siGCRV2-CMVeGFP导入稀有鮈鲫(Gobiocypris rarus)受精卵,获得转基因稀有鮈鲫P0代群体。转基因稀有鮈鲫攻毒实验显示,转基因稀有鮈鲫死亡率为30%,抗草鱼出血病能力显著提高。进一步的实时荧光定量PCR检测证实,转基因稀有鮈鲫脾脏、后肠和肝脏中GCRV的含量显著低于对照鱼,并随着时间的延续逐渐减少,转基因稀有鮈鲫体内GCRV的复制受到有效抑制。研究为抗草鱼出血病转基因鱼育种奠定重要基础

    耦联系统的应用:微藻培养与生物乙醇生产相耦联实现CO2循环

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    APPLICATION OF A COUPLING SYSTEM: MICROALGAE CULTIVATION COUPLED TO BIOETHANOL PRODUCTION FOR CARBON DIOXIDE RECYCLIN

    限制物理层攻击影响范围的光网络RWA算法

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    攻击防护是光网络的一个重要问题。文章构建了光网络大功率带间串扰攻击和光放大器增益竞争攻击的传播模型,提出了一种限制物理层攻击影响范围的路由和波长分配算法。在路由分配阶段,该算法把具有较小最大光路攻击范围的路由分配给光路请求,以降低攻击影响范围。仿真结果表明,与常用算法相比,该算法能够有效限制物理层攻击影响范围,提升光网络的安全性
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