Results 101 to 110 of about 763,879 (236)

青岛地区大肠埃希菌临床株中blaCTX-M和PMQR基因的检测

open access: yesZhongguo shiyan zhenduanxue, 2014
目的调查青岛地区大肠埃希菌临床分离株中β-内酰胺酶基因blaCTX-M和质粒介导的喹诺酮耐药(Plasmid-mediated quinolone resistance,PMQR)基因的流行性。方法采用Vitek-2compact系统进行菌株鉴定和药物敏感性测定。聚合酶链反应(Polymerase chain reaction,PCR)法检测菌株中存在的blaCTX-M基因和各种PMQR基因,并对PCR扩增产物进行DNA序列测定,确定基因类型。结果 83%的大肠埃希菌对头孢菌素类和氟喹诺酮类药物耐药 ...
尉鸿飞   +5 more
doaj  

斜带石斑鱼MyD88基因的克隆与表达

open access: yes, 2011
本研究运用RACE-PCR技术获得斜带石斑鱼(Epinephelus coioides)髓样分化因子88(myeloid differentiation factor 88,MyD88)基因,并对该基因进行生物信息学和表达模式分析。研究结果表明1795bp的cDNA全长序列,包括ORF 870 bp、5'UTR 243 bp和3'UTR 682 bp,3'UTR存在1个多聚腺苷酸加尾信号(AATAAA)和两个mRNA不稳定基序(ATTTA ...
昌鸣先, 罗廷荣, 高谦, 韦友传
core  

Navigating the Algorithmic State: Public Values and Citizens' Preferences of AI‐Driven Public Service Delivery

open access: yesPublic Administration, EarlyView.
ABSTRACT As the public sector increasingly adopts AI‐powered automated decision systems (ADS), understanding how citizens experience and value ADS use in public decision‐making is both normatively and practically important. Therefore, we examine and compare the effects of seven attributes of public values on citizens' support for ADS adoption in two ...
Guimin Zheng   +4 more
wiley   +1 more source

鼻咽癌颈淋巴结转移相关甲基化基因的筛选

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2016
摘 要: 【目的】 分析鼻咽癌全基因组基因甲基化状态,筛选鼻咽癌颈淋巴结转移相关的甲基化基因?【方法】 收集I期(T1N0M0)鼻咽癌石蜡标本及有颈部淋巴结转移的鼻咽癌组织标本(T1-4N1-3M0)各4例,分别提取DNA,富集两组样品基因组甲基化片段后采用甲基化芯片对两组标本进行高通量测序分析,对杂交信号进行扫描及初步数据处理,分析并筛选出两组标本的差异甲基化基因?
doaj  

麻疯树(Jatropha curcas)毒蛋白curcin基因家族成员的分离和描述

open access: yes四川大学学报. 自然科学版, 2005
麻疯树curcin基因家族中4个成员通过PCR扩增被分离.它们都不含有内含子,序列分析表明它们编码Ⅰ型核糖体失活蛋白(Ribosome-Inactivating Proteins,RIPs),证明curcin基因如同大多数RIPs一样由多基因家族编码.四个curcin基因家族成员和另两个已知curcin基因家族成员的开放阅读框(Open Reading Frame,ORF)的序列比对结果显示curcin基因家族成员至少可分为两个亚类群,亚类群之间的氨基酸序列相似性低于88 ...
张金平, 秦小波, 徐莺, 陈放
doaj  

灰葡萄孢霉(Botrytis cinerea)BC-31倍半萜环化酶基因及氮调节因子AREA基因与ABA合成关系研究

open access: yes, 2012
为深入了解B.cinera BC-31中ABA生物合成途径及其调控机制,并为进一步构建ABA高产工程菌提供理论依据,本论文根据丝状真菌次级代谢产物生物合成调控机理和倍半萜化合物生物合成途径的一般规律,结合对已公布的B.cinerea B05.10基因组数据的分析,筛选了1个可能与B.cinerea中ABA合成调控相关的氮调节因子AREA的编码基因Area以及5个可能与ABA合成中环化步骤相关的倍半萜环化酶的编码基因,并进一步采用基因敲除技术对本实验室产ABA菌株B.
邓洪渊
core  

Do Criminalization Policies Impact Local Homelessness?

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Local criminalization policies draw on the logic of deterrence to levy costs on individuals who engage in behaviors that are closely associated with various public concerns, such as those criminalizing behaviors associated with homelessness, thereby potentially reducing community‐level costs.
Hannah Lebovits, Andrew Sullivan
wiley   +1 more source

Rfx2基因在小鼠睾丸中的表达研究

open access: yesZhongguo shiyan zhenduanxue, 2010
目的利用基因芯片筛选与精子发生相关的基因,并研究其表达特征。方法将4 d、9 d、18 d、35 d、54 d和6月龄小鼠睾丸组织cDNA与Affymetrix全基因组芯片进行杂交,筛选出差异表达的基因。通过RT-PCR分析差异表达基因在小鼠睾丸不同发育阶段中的表达。结果分析Affymetrix全基因组芯片杂交结果后,筛选得到1个差异表达杂交点,通过在NCBI网站与小鼠全基因组序列Blast分析可知该差异表达基因是Rfx2基因。该基因在4 d、9 d、18 d、35d、54 ...
王朝亮   +7 more
doaj  

The proposed protocol for the detection system of transgenic plants in Taiwan

open access: yes, 2011
基因轉殖植物之檢測有兩種方式,第一種是藉由基因表現的層次進行觀察檢測,如:基因表現蛋白質或植物之外在表徵等;第二種方式係就DNA 層次直接檢測轉殖之外來基因的DNA 序列。就基因表現層次方面而言,目前台南區農業改良場利用除草劑進行耐藥性篩檢,供試的21 個玉米品種均對嘉磷塞(Glyphosate)(年年春41%S、80 倍稀釋液噴施)及固殺草(Glufosinate)(百試達18.02%S、100 倍稀釋液噴施)無耐藥性。僅進口飼料玉米具有耐藥性之個體。花蓮區農業改良場則已發展以x-gluc ...
Ming-Jen Fan; Shu Chen; Chien-Yih Lin; Chi-Chu Tsai; Ai-Hua Yang; Shyh-Shyan Wang; Hsueh-Shih Lin   +1 more
core  

Emotion and the Advocacy Coalition Framework: An Affective Dynamics Perspective

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Despite extensive evidence that emotion and cognition are deeply intertwined, the Advocacy Coalition Framework (ACF) lacks an analytically independent emotional mechanism in its causal architecture—an omission that may be particularly consequential in policy subsystems structured around morally charged, identity‐laden policy disputes.
Moshe Maor
wiley   +1 more source

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