外源因子,Adventitious agent
1)Adventitious agent外源因子
1.Methods The animal infection situation including illness and death and so on was observed with animal experiment method, adventitious agent infection situation was judged through observing the cellular pathological changes and blood absorpt ion experiment with cell culture test.目的 对病毒类制品的外源因子检测方法进行验证和探讨。
2.Objective To identify live attenuated hepatitis A(HAV) vaccine virus seed and detect adventitious agents,monoclonal antibody is used to neutralize instead of human and rhesus monkey immune serum.目的 利用单克隆抗体代替常规的人、猴免疫血清进行甲型肝炎减毒活疫苗毒种外源因子检查及鉴别试验。
英文短句/例句

1.Effects of Exogenous Factors on Activities of Digestive Enzyme and Trypsin mRNA Expression in Tilapia;外源因子对罗非鱼消化酶活性和胰蛋白酶mRNA表达的影响
2.Liposome-Mediated Exogenous DNA Uptake by Goat Sperm Cells脂质体介导外源基因体外转染山羊精子的研究
3.Stability of Transgene in Micropropogation Plants of Transgenic Birch转基因白桦微繁子代中外源基因稳定性研究
4.Obtainment of Transformed Maize with Dehydration-Responsive Transcription Factor CBF4 Gene外源脱水应答转录因子CBF4基因转化玉米的获得
5.Influencing factors of porcine spermatozoa binding and internalization exogenous DNA猪精子结合和内化外源基因的影响因素研究
6.Association of Goat (Capra Hircus) CD4 Gene Exon 6 Polymorphism with Ability of Sperm Internalizing Exogenous DNA山羊CD4基因外显子6多态性与精子内化外源DNA能力的相关性研究
7.Effect of SP Promoter and Intron on the Expression of Foreign Gene in the Transgenic Poplar;SP启动子与内含子对转基因杨树中外源基因表达的影响
8.Synthetic evaluation on exogenous supporting ability of science & technology based on factor analysis;基于因子分析的产业外源性科技支持能力评析
9.The Analysis of Wheat from Exogenous DNA Transformation Via Ion Beam;离子束介导外源基因群转移小麦的研究
10.Expansion and Cytokine Secretion Profile of Human Vα24~+ NKT Cells from Different Sources不同来源人Vα24~+ NKT细胞体外扩增及细胞因子分泌
11.Effects of exogenous basic fibroblast growth factor on proliferation of rat muscle-derived stem cells外源性碱性成纤维细胞生长因子对大鼠肌源性干细胞增殖的影响
12.The Detection of Interleukin-6 in Vitro Human Whole Blood with Exogenous Pyrogen外源性热原对体外人全血中IL-6细胞因子含量的影响
13.Establishing and overexpressing rat brain-drived neurotrophic factor conditional transgenic vector in vitro脑源性神经营养因子(rBDNF)转基因小鼠载体的构建和体外表达
14.Study on the Influencing Factors of Transfection Efficiency and the Optimum Conditions for Sperm-mediated Gene Transfer in Goats山羊精子介导法转染外源基因影响因素及最适条件的研究
15.SHIP Inhibits Growth Factor-mediated K562 Cells Proliferation and Its PKB/Akt Activation外源性SHIP基因表达抑制生长因子介导的K562细胞增殖及Akt磷酸化
16.Effects of exterior hormones and environmental factors on the ovarian development in Japanese eel外源激素及环境因子对日本鳗鲡卵巢发育的影响
17.The Alterations of ES Expression in Ischemic Brain Tissue and the Influences of Angiogenic Factors on the Cerebral Ischemia;缺血诱导ES等表达变化及外源性血管再生因子对脑缺血的影响
18.Effects of Exogenous Vascular Endothelial Growth Factor on Rat Müller Cells under Hypoxia in Vitro;缺氧条件下外源性血管内皮生长因子对大鼠Müller细胞的影响
相关短句/例句

Exogenous growth factors外源生长因子
3)Adventitial-derived relaxing factors血管外膜源性舒张因子
4)exogenous nerve growth factor外源性神经生长因子
1.Objective To find some evidence that can help to deal with cerebral infarction at the best time by treating CI patients with the exogenous nerve growth factor at different stages.目的对不同病程阶段的脑梗死患者使用外源性神经生长因子,通过疗效观察来推测外源性神经营养因子治疗脑梗死最佳时机。
2.Objective To probe into the expressive change of ciliary neurotrophic factor(CNTF) and the relation between exogenous nerve growth factor(NGF) and recover of sciatic function after injury.目的 探讨坐骨神经损伤后脊髓前角细胞睫状神经营养因子 (CNTF)表达变化及外源性神经生长因子(NGF)与CNTF表达的关系。
5)Exogenous nutrient elements外源营养调控因子
6)exogenous Epidermal Growth Factor外源性表皮生长因子
1.Subject:To investigate the effects of exogenous Epidermal Growth Factor(EGF) on repair of premature intestinal mucosa with Necrotizing Enterocolitis(NEC).目的本课题通过观察外源性表皮生长因子(Epidermal Growth Factor,EGF)对未成熟肠道粘膜损伤中细胞增殖与凋亡的影响,并研究其受体表达的变化,探讨表皮生长因子在未成熟肠道粘膜损伤与修复中的可能作用。
延伸阅读

河外射电双源和多重源  河外射电展源中最典型的也是数量最多的(占40%)一种是双源。双源的最普遍的特征是,在相隔几万至两百万光年的距离上形成两块射电瓣(又称为子源)。证认出的光学对应体(星系或类星体)往往位于此两子源连线的中心。子源的远离光学母体的外边缘处射电亮度变化很陡,而且更接近最大值(此区域常是1″量级大小的致密成分),而向光学母体方向的则是亮度逐渐减弱的辐射延伸部分。最典型的代表是天鹅座A(见射电星系)。有时,光学母体两边是以两个强的外子源为主体的多个子源的组合结构,但仍然成为近似对称分布的所谓多重源。这种直线和对称排列的双源特征,在其所属的光学母体的致密射电区内有时能重现,就是说在不到双源的10-4~10-5的范围内,即在光学体小于0奬01(或几十光年)的区域内,仍然有成双的小致密源出现,而且里、外双源的连线基本上是一致的,例如,3C326、33C111、3C390.3、3C405等射电源。    双源的普遍特性,如流量不变化,具有幂律谱 (Sv∝v-α,平均频谱指数α 约为0.75), 有百分之几的线偏振而没有圆偏振,磁场为10-4~10-5高斯,射电光度强(1040~1045尔格/秒), 能量高(1058~1081尔格)等等都与一般展源相同。对双源已进行了大量的观测统计,得出的结果是两个子源的流量密度相差不大,平均只差40%。两个子源与光学母体的距离也相差不大,双源中较亮的子源更靠近光学母体,直径较小,频谱较平。两个子源之间的距离约为子源直径的 2~4倍。在双源间距为 6~100万光年的范围内,不同射电源的子源大致以同样方式膨胀和相互分离, 形成了从中心向外抛射的圆锥体(圆锥角约20°~50°)。源的光度越大,双源之间的距离越大,抛射圆锥也就越窄。射电源主轴方向(两个子源的连线方向)与光学星系主轴方向成各种交角,表明二者没有相关性。同样,射电源主轴与偏振方位角之间也没有明显的相关性。以全部双源为例进行统计,没有发现射电光度与频谱指数或展源直径或光学亮度之间有什么关系。子源明亮头部的线偏振只有百分之几,而在延伸向光学母体的局部地区的线偏振则达到百分之几十,甚至高达百分之七十。    双源和多重源的这些特性提出了三个必须解决的问题:①成双的对称性和一线排列问题;②在极其稀薄的介质中,子源抛射膨胀成形而不瓦解的约束机制问题;③巨额能量的来源和转换方式以及如何向子源进行输运的问题。目前流行的模型基本上有三种:等离子体团抛射及膨胀,大质量物体的一次抛射,连续喷射束。    参考书目   A.G.Pacholczyk,Radio Galaxies,Pargamon Press, Oxford, 1977.