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By using freshly isolated SD rat cerebrocortical synaptosomes and KC1 as chemical stimulant to depolarize, we studied the effects of etomidate on KCl-induced increased intrasynaptosomal calcium concentrations, voltage-gated calcium channel subtypes on presynaptic membrane and neurotransmitters release from synaptosomes respectively, via neurochemical and inverse phase high performance liquid chromatographic methods.

我们利用SD大鼠新鲜分离的大脑皮层突触体作为研究对象，以KCl作为化学刺激剂去极化，采用神经化学方法(Fura-2作为钙离子指示剂)和高效液相测定法，分别就依托咪酯对去极化诱发突触体内钙离子浓度升高的影响，突触体膜上电压门控性钙通道亚型的作用以及由此引起的对神经递质释放的影响进行了实验研究。

These culture conditions not only maintain the undifferentiated state and normal diploid karyotypes of BALB/c mouse ES cells effectively, but also maintain a series of their characteristics of murine stem cells. two different kinds of digestive methods and Two kinds of digestive juice with different concentrations were designed to dissociate proliferous inner cell mass and ES cell clonies deriver from dissociative ICM.

这一培养条件不但有效地维持了ES细胞的未分化状态和正常二倍体核型，而且维持了其作为多能性胚胎干细胞的一系列特征；实验设计了两种离散方法和两种浓度的消化液，用来离散增殖的ICM和ICM离散后出现的ES集落。

The results show that the influence of pore size distribution on desalination varies in different solution concentrations.

结果表明，随着溶液浓度的变化，不同的孔径分布对碳气凝胶除盐效果影响不一样。

Magnetic properties of a series of Cd1-xMnxSe quantum dots with different sizes and Mn concentrations were measured by using superconducting quantum interference device magnetometer. The field dependent magnetization of the Cd1-xMnxSe quantum dots at 2 K was obtained and it was identified not to be dominated by CdSe quantum dots but Mn ions.

我们利用超导量子干涉仪量测不同尺度(D = 5 nm， 8 nm)及不同Mn浓度(x = 0.375%， 0.75%， 1.5%)的Cd1-xMnxSe奈米颗粒磁性；我们推测在温度2 K下，所量测的磁化强度是由Mn原子贡献而非来自奈米颗粒，拟合其磁化强度对磁场曲线图而得出样品中Mn原子个数，同时假设Mn离子的磁性行为高达室温仍满足Brillouin function和Curie顺磁定律，所以可从高温的数据扣除Mn的顺磁贡献。

However, the appearance of concentration quenching and devitrification at high RE concentrations in most glass systems has been the major obstacle in this area.

然而高浓度掺杂往往会引起强烈的浓度猝灭，也容易引起玻璃失透，这是目前影响玻璃基微片激光器发展的两个主要障碍。

Objective: To investigate the effect of different concentrations of dextrose transfusion on cerebral glucose metabolism in pediatric neurosurgical operations.

目的：探讨不同浓度含糖液输注在小儿神经外科术中对脑糖代谢的影响。

The factors that affected the content of dialdehyde in dialdehyde starch included reaction time, reaction temperature, concentrations of sodium periodate, reaction pH, and the ratio of sodium periodate to starch.

影响双醛淀粉的双醛含量的因素有反应时间、反应温度、高碘酸钠浓度、反应pH值及高碘酸钠与淀粉的摩尔比。

The experiment uses Dianthus Caryophyllus as sample to study the effect of vase planting under different concentrations Phytic Acid.

本试验以香石竹切花为材料，研究了不同浓度的植酸对香石竹切花瓶插的影响。

Simultaneity, Compares the effect of Dianthus Caryophyllus vase planting with different concentrations Phytic Acid, pure water , and sucrose solution.

同时，比较了不同浓度的植酸和纯水，蔗糖溶液对香石竹切花瓶插效果的差异。

In contrast to N and Si, no major difference in cell growth rate and metal uptake was found for diatom cells maintained at different P concentrations Fig.

与此相反，以氮，硅，没有发生重大差异，细胞生长率和金属的吸收被发现的硅藻细胞保持在不同P浓度（图2）。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。