有效因子

This is a review of recent studies on the relationship between fire and invasive plant species.

在植物外来种与火生态因子的作用研究中发现，火与外来种的关系随物种生物学特性、火作用的时间、频度、强度不同而不同，火有时会有效地抑制外来种的生长和入侵，有时会促进一些外来种的生长和入侵。

Gelatin microsphere is firstly made by encapsulating bFGF into gelatin by special manufacture process, then this microsphere was combinated into PLGA conduit or PLGA film.when used, we need only pack the injury peripheral nerve, injury spinal cord, wounded pars encephalic with the PLGA conduit. The conduit or film can slowly release buff which would be absorbed by around tissues.bFGF was already proved to be nutritious to the regeneration and alive of neuron and protect injury neuron.bFGF can also promote morphogenesia and division of nerve cell which would raise the survival rate of neuron, guide the generation of axon etc.bFGF is one of the important factors of sustaining the normal survival of cholinergic nerve.

使用时，只需将此材料贴敷外周损伤神经伤患处，脊髓伤口，或在脑部开颅手术后填充于术后创面，可有效地在伤口局部缓慢地释放并由机体组织吸收bFGF等神经营养因子。bFGF等已被证明具有神经营养作用，可促进神经元的再生与存活，保护受损的神经元。bFGF等对神经细胞兼有促进形态发生与分裂作用，具有提高神经元的成活率、诱导轴突向外生长等功能，是维持前脑基底部胆碱能神经元正常生存的重要因素。

The diameter in brachial artery in responding to reactive hyperaemia was improved greatly than before treatment. After 6 months of treatment, SBP and DBP were all cut down obviously than before treatment.

贝那普利治疗2型糖尿病并发高血压患者在降低BP的同时能有效地改善血管内皮依赖性舒张功能，且使血浆Tm和vW因子水平降低，NO水平升高。

When demagnetization is controlled by nucleation, the effective demagnetization factor in coercivity model will be reduced with addition of Sn. But, in the same time, harmness of imperfects on surface of grain to coercivity will be increased.

在形核控制情形下，掺杂Sn能明显减小矫顽力表达式中的有效退磁因子N〓，但也使晶粒表面缺陷项对矫顽力的危害增大。

The statistical analysis to each yield inscape during two years demonstrates that the number of spike and the number of valid spike are main factors, which affect yield.

对2年对各种产量构成因子进行分析后发现小穗数和有效小穗数是地膜覆盖后影响产量的主要因素。

On the basis of summarizing and discussing the gamma inversion, we point out that an analytic method of volume attribute is very important. The method integrates multiple stepwise regression and cross verification to optimize and combine the attribute, adopts the convolution factor to eliminate frequency difference between the seismic and logging data, uses the neural network as a matching and predicting tool. Because of its religious theoretic base, the method is more accurate than other ones.

在对目前常用的伽玛反演方法进行总结、讨论的基础上，指出地震体属性分析法具有明确的物理意义，有效结合了多元逐步回归和交互验证法进行属性的优选和组合，采用褶积因子消除地震信息和测井信息的频率差异，并以神经网络为拟合和预测手段，具有严谨的理论基础，相比其它几种方法更为准确合理。

Background Vascular endothelial growth factor has been investigated for the treatment of ischaemic heart disease for more than a decade.

实验背景应用血管内皮生长因子(vascular endothelial growth factor，VEGF)基因转染治疗缺血性心脏病，在国内外已研究多年，并取得初步有效的临床试验结果。

The addition of verapamil to thiopental was effectivein decreasing the serum cytokines and liver MDA content.

而维拉帕米加入硫喷妥钠可有效减少血清细胞因子水平和肝脏 MDA 含量。

The other is the rate between thigh length and effective calf length is one of the important factors influencing bicycling which can provide important references for selecting the bike sporters.

间。其二发现自行车运动员&大腿长与有效小腿长的比率&是影响骑行的重要&因子&之一，这对自行车运动员选材有重要参考意义。

Directed evolution of transcription factors can be employed to effectively improve the phenotypes which are controlled by multiple genetic loci.

利用对转录因子的定向进化可对多基因控制的性状进行有效的代谢工程改造。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。