Results 21 to 30 of about 29,393 (166)

Defining and identifying relevant stakeholders to advance effective conservation

open access: yesConservation Biology, EarlyView.
The challenge of defining stakeholders in environmental science and an approach for refining existing definitions. Abstract Stakeholder is a contested term that has spawned a multitude of ad hoc definitions. The ambiguity of these definitions has oftentimes impeded transdisciplinary research in environmental governance and conservation science because ...
Milan Büscher   +5 more
wiley   +1 more source

基因芯片技术在乙肝病毒基因型及YMDD变异检测中的应用

open access: yesZhongguo shiyan zhenduanxue, 2007
目的评价基因芯片技术在HBV基因型及HBVP基因YMDD变异检测中的应用价值,并对不同基因型病例的临床情况进行分析。方法抽提HBV DNA,用PCR方法扩增S基因及P基因部分区域,扩增产物与基因芯片上的寡核苷酸探针进行杂交,杂交结果通过芯片影像读取仪扫描到计算机上,经软件分析可得到HBV基因型、HBVYMDD野生型及YVDD、YIDD变异型结果;部分标本通过HBV preS/S基因序列测序证实。结果38份高病毒滴度标本(HBV DNA定量>1.0×105拷贝/毫升)中22例为B基因型(58 ...
陈伟烈   +5 more
doaj  

High-efficienct Construction of HBV-replicative Stable Cell Lines Based on ALL-IN-ONE Sleeping Beauty Transposon System [PDF]

open access: yes, 2016
乙型肝炎病毒(HepatitisBvirus,HBV)感染是全球范围内的重要公共卫生问题。HBV为嗜肝病毒,只能在肝细胞中增殖,目前HBV复制与抑制相关的研究大多采用HBV质粒瞬时转染Huh7或HepG2细胞的方法,但在进行药物筛查、病毒制备等需要稳定均一的实验条件时,稳定整合细胞株是更好的选择。HepG2.2.15和HepAD38是当前用于HBV研究的最常用的两株细胞株,其构建策略为随机整合方式,且这两株细胞株均为GenotypeD型。有研究表明,不同基因型乙型肝炎病毒有不同的地理分布特征,在复制 ...
吴勇
core  

Drivers of bat researchers’ intent to adopt field hygiene practices

open access: yesConservation Biology, EarlyView.
Abstract Infectious disease is a growing threat to wildlife, with zoonotic transmission most likely at the human–wildlife interface. One underappreciated activity at this interface is fieldwork with wild animals, but associated risks can be mitigated through field hygiene (FH) practices, such as using personal protective equipment and other appropriate
Joanna L. Coleman   +6 more
wiley   +1 more source

三种肿瘤易感性相关基因在韩国人中的多态性分析

open access: yesZhongguo shiyan zhenduanxue, 2015
目的调查疾病易感性相关的髓过氧化酶(MPO)、人类8-羟基鸟嘌呤糖苷酶(hOGG1)、锰超氧化物歧化酶(MnSOD)基因多态性在韩国人群中的分布状况。方法采用聚合酶链式反应-限制性片段长度多态性(PCR-RFLP)技术分别分析300名韩国健康男女大学生的MPO基因启动子区-463bp位点、hOGG1基因第7外显子第1245位碱基C/G、MnSOD基因1183位点T/C的单核苷酸多态性—M-4,计算基因型和基因频率。结果 MPO基因型频率为G/G型80.3%、G/A型19.0%、A/A型0.7 ...
卢焕俊, 洪润哲, 许青松
doaj  

The effect of PNPLA3 ploymorphism in the intervention of non-alcoholic fatty liver disease [PDF]

open access: yes, 2015
研究目的 运动是治疗非酒精性脂肪性肝疾病的一个重要方法,而脂肪滋养蛋白基因(PNPLA3)是非酒精性脂肪性肝疾病的一个重要的基因遗传因子。本研究的目的是为了探讨脂肪滋养蛋白基因的多态性表达是否影响到运动干预非酒精性脂肪性肝疾病的过程。 研究方法 本研究共招募40-65岁中心性肥胖受试者1059人,进行常规体检,并运用彩超检测脂肪肝。并随机抽取476名肥胖受试者进行1H-MRS对其肝内甘油三酯进行定量测定。在这476名肥胖受试者中,随机抽取220人分为三组,强化运动组(先进行6个月的强化运动期 ...
黄竹锋
core  

Advancing conservation breeding programs for marine invertebrates

open access: yesConservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam   +3 more
wiley   +1 more source

瘦素受体基因Gln223Arg多态性与2型糖尿病合并慢性肾功衰竭关系

open access: yesZhongguo shiyan zhenduanxue, 2015
目的探讨瘦素受体基因Gln223Arg多态性与2型糖尿病合并慢性肾功衰竭关系。方法采用聚合酶链反应及限制性片段长度多态性方法(PCR-RFLP)分别测定126例2型糖尿病、108例2型糖尿病合并慢性肾功衰竭和185例对照组样本的瘦素受体基因Gln223Arg的基因型,同时检测各组不同基因型样本的血清瘦素水平。结果 2型糖尿病合并慢性肾功衰竭组与正常对照组瘦素受体基因Gln223Arg基因型频率及等位基因频率比较差异有显著性 ...
李莹   +7 more
doaj  

The Study of Ultrastructure、ATP、Calcium and RNA-Seq in fertile and sterile anthers of Lycium Barbarum L. [PDF]

open access: yes, 2016
高等植物的雄性不育是杂种优势利用的基础,避免了去雄的繁杂程序。植物雄性不育的种类很多,形成原因也很复杂,对雄性不育机理的探索一直是一个热门研究领域。枸杞雄性不育系是近年来新发现的一种不育类型,具有很大应用潜力,为了明确其雄性不育发生的机制并更好地开发利用这一宝贵种质资源,我们从结构、生理和分子生物学等几个方面展开了研究。 本研究以可育系宁杞1号和不育系宁杞5号为实验材料,用超微结构、ATPase和Ca2+的细胞化学定位,以及转录组和数字基因表达谱研究了枸杞花药发育的特征并比较了不育花药形态 ...
杨淑娟
core  

Providing regular and frequent maps of losses and gains of farmland birds based on European monitoring data

open access: yesConservation Biology, EarlyView.
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando   +54 more
wiley   +1 more source

Home - About - Disclaimer - Privacy