Results 81 to 90 of about 24,580 (225)
Genetic Analysis on Grain Shape and Mapping, Cloning and Characterizing of Major Grain length Gene in rice [PDF]
, 2014 水稻是世界上最重要的禾谷类作物之一，提高水稻产量和改善稻米品质是水稻遗传与育种研究的永恒主题。水稻粒形是粒长、粒宽、长宽比及粒厚的综合性状，是稻米外观品质的重要指标，同时对稻米的碾磨品质、食味品质及产量均有重要影响。厦门大学水稻遗传育种研究室长期致力于大粒优质水稻新品种的遗传与育种研究，前期采用60Co-γ射线辐照水稻成熟花粉诱变方法，获得了一批遗传上稳定的长粒大粒水稻种质材料并广泛应用于优质籼稻育种中。为了解这些大粒材料谷粒性状的遗传基础，本研究选择其中的三个大粒品系JF171、JF178 ...
黄荣裕
core
Effects of political identity activation and inaccurate metaperceptions on attitudes toward wolves
Conservation Biology, EarlyView.Abstract Polarization between groups can undermine durable conservation outcomes. Activating group identities (i.e., an individual's sense of self derived from membership in a group) can exacerbate differences, especially when people hold inaccurate perceptions of their peers and rivals.
Alexander L. Metcalf, Justin W. Angle
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2010 目的探讨整合素-α2（ITGA2）基因C807T和整合素-β3（ITGB3）基因T176C多态性与缺血性脑卒中的关系及其对血脂、脂蛋白水平的影响。方法应用聚合酶链反应-限制性片段长度多态性（PCR-RFLP）和DNA测序的方法检测265例缺血性脑卒中患者和280例对照组ITGA2和ITGB3的基因型;同时按常规方法测定血浆脂质、脂蛋白水平。结果缺血性脑卒中组总胆固醇（TC）、甘油三酯（TG）、低密度脂蛋白-胆固醇（LDL-C）水平明显高于对照组（P0.05 ...
龙显科 +3 more
doaj
Development of a novel fast immunoassay for HBV genotyping and study on the clinical significance of the quantitative hepatitis B core antibody level [PDF]
, 2015 乙型肝炎病毒（HepatitisBvirus,HBV）感染是一个严重的，世界范围内的公共卫生问题，可以导致肝炎，肝硬化（LC）和肝细胞癌（HCC），每年可以引起100万以上的人死亡。在HBV感染的临床诊断中，不同的HBV相关标志物指示了病毒产生，病毒多态性以及宿主免疫反应三个方面，从而全面了解HBV感染者的疾病状态，预测自然转归和治疗应答，监测疾病进展和治疗效果，对HBV感染者的管理和治疗起到关键的指导作用。目前在指示病毒产生的标志物方面，HBsAg，HBVDNA和HBeAg的检测手段相对成熟 ...
宋浏伟
core
Conservation Biology, EarlyView.Abstract Despite the crucial role of human impacts on biodiversity loss, many assessments of this loss focus on single metrics, such as species richness, and overlook the multidimensional effects of human activities. Because of its importance to ecosystem functioning, we investigated the functional diversity of medium‐ and large‐sized mammal ...
Xueyou Li +8 more
wiley +1 more source
载脂蛋白A5基因多态性与冠心病患者血脂及冠脉狭窄程度的相关性
Zhongshan Daxue xuebao. Yixue kexue ban, 2017 【目的】探讨中国汉族人群载脂蛋白A5（APOA5）基因rs2075291和rs3135507多态性位点与冠心病（CHD）患者血脂水平及冠脉狭窄程度的关系。【方法】应用聚合酶链式反应-限制性片段长度多态性法（PCR-RFLP）对324例CHD患者和152例非CHD对照者进行rs2075291和rs3135507多态性分型并比较不同基因型之间血脂水平的差异。采用Gensini评分系统评价CHD患者的冠脉狭窄程度 ...
王艳玫 +4 more
doaj
Using incentive payments to promote human–carnivore coexistence
Conservation Biology, EarlyView.Abstract For many large carnivores, minimizing the financial burden they impose on local people is critical to their conservation. Incentive‐based programs that provide people with financial benefits for taking pro‐conservation actions or achieving conservation goals are a promising tool for promoting human–carnivore coexistence. Although the number of
Adam Pekor +9 more
wiley +1 more source
Guangtongxin yanjiu, 2010 多业务区分是差异化性能保证和网络安全监控的基础。基于业务峰值速率的特征能实时实现多业务类属区分,文章根据业务区分速率界值与链路负载率之间的相关性,分别提出了静态业务区分和动态业务区分方法,能够在实时链路状态下将多业务动态区分为实时和非实时业务。基于C++编程仿真验证了业务区分方法的可行性及简易性。
杨永杰, 隋会静, 包志华
doaj
Automating the analysis of public saliency and attitudes toward biodiversity from digital media
Conservation Biology, EarlyView.Abstract Measuring public attitudes toward wildlife provides crucial insights into human relationships with nature and helps monitor progress toward Global Biodiversity Framework targets. Yet, conducting such assessments at a global scale presents challenges.
Noah Giebink +8 more
wiley +1 more source
脂联素启动子基因多态性和脂联素水平与高血压及并发症的相关性研究
Zhongguo shiyan zhenduanxue, 2008 目的观察血清脂联素（APN）水平及APN基因启动子区域单核苷酸多态性（SNP）频率与高血压（HP）及其合并症间的相关性,探讨脂联素基因（aPM1）多态性与HP及合并症间的遗传危险因素。并确立一种高效、准确、经济的检测APN基因实用筛查方法,供临床检测应用。方法对单纯HP组（1组）、HP合并T2DM（HP-T2DM）组（2组）、HP合并冠心病（H-CHD）组（3组）、HP合并肾病（HP-NE）组（4组）和对照组（5组）分别测定空腹血清APN及生化指标。采用变性高效液相色谱（DHPLC）技术 ...
贾玫 +5 more
doaj