EC50

Then use the regression method to calculate the propofol EC50 at the time loss of consciousness .

利用回归分析方法计算出不同靶浓度舒芬太尼和芬太尼使患者意识消失的丙泊酚EC50。

There were 12 kinds of low effect fungicides ( EC50 value > 20 ppm ) .

低效的药剂有12种（EC50值>20ppm）。

Conclusion The EC50 of etomidate to cause loss of consciousness in adjuvant chemotherapy group is low than control group .

结论乳腺癌新辅助化疗后患者靶控输注依托咪酯时意识消失的EC50低于未化疗患者。

The effect of controlled hypotension on EC50 of propofol for skin incision and intraoperative BIS value

控制性降压对切皮时丙泊酚EC50及术中相同BIS条件下靶控浓度的影响

And there were also marked decrease of EC50 value of the toxicity test of the whole sediment crescent algae .

全底泥月芽藻毒性试验的EC50值也有显著降低。

The efficacy was assessed using visual analog scores ( VAS ) and EC50 calculated using method of Dixon .

以视觉模拟评分法（VAS）评估镇痛效果，按Dixon法计算罗哌卡因的EC50值。

For PETROTECH Drilling Fluids Service'mud system , the toxicity data ( EC50 values ) is as follow .

对于中海石油技术服务泥浆公司的泥浆体系，请看以下的毒性数据（EC50值）。

Conclusion The EC50 epidural ropivacaine for analgesia in the first stage of labor is 0.063 % determined by sequential experiment method .

结论利用序贯试验方法测定自然分娩时硬膜外罗哌卡因镇痛的EC50是0.063%。

METHODS Using Fenton reaction to assay and calculate content scavenging 50 % of all hydroxyl free radicals ( EC50 ) .

方法：应用Fenton反应检测并计算50%羟自由基被清除时的药物浓度（EC（50））。

The mean resistant level of 13 mutant strains was 18.45g / ml ( EC50 ) .

获得的13个抗性突变体的抗性水平平均EC（50）值为18.45μg/ml，EC（90）值为305.17μg/ml。

The EC50 values of the whole sediment bacteria toxicity test were reduced 11 % ~ 30 % compared with these before dredging ;

与疏浚前相比，全底泥沉积物的细菌毒性试验的EC50值降低11%~30%；

Results : AGB inhibited HIV-1 induced syncytium formation , EC50 was 39.5 μ g / ml ;

结果：AGB抑制HIV-1IIIB诱导C8166细胞形成合胞体，EC50为39.5μg/ml；

Objective To determine the Effcet-site EC50 of etomidate to cause loss of consciousness in patients who accepted adjuvant chemotherapy .

目的测定新辅助化疗乳腺癌患者靶控输注依托咪酯意识消失时的半数效应室靶浓度（EC50）。

Toxicity of the 2 fungicides was tested by gradient dilution . The toxicity index and EC50 was calculated with POLO software .

并采用梯度稀释法对2种药剂进行毒力测定，利用POLO软件计算其毒力指标，求出EC50。

Objective To determine the median effective concentration ( EC50 ) of ropivacaine when combined with different concentrations of sufentanil for epidural labor analgesia .

目的测定产妇硬膜外分娩镇痛时不同浓度舒芬太尼混合罗哌卡因的半数有效浓度（EC50），寻找舒芬太尼混合罗哌卡因的适宜浓度。

Objective To determine the effective target plasma propofol concentration required to prevent the response to fibercolonoscope examination in 50 % of patients ( EC50 ) .

目的测定纤维结肠镜检查术患者靶控输注异丙酚的半数有效血浆靶浓度（EC50）。

After many generations being treated with the chemical , the resistance is increased since the EC50 become higher and the growth of the pathogen on the chemical is improved .

表现为EC50的提高和在含多菌灵培养基上生长能力的增强。

Objective To determine the effect of fentanyl on 50 % effective concentration ( EC50 ) of ropivacaine for postoperative epidural analgesia following gynecological surgery .

目的测定罗哌卡因用于妇科术后硬膜外腔镇痛的半数有效浓度（EC50）并观察芬太尼对罗哌卡因EC50的影响。

First add spore suspension and then metalaxyl at different level . Hm had its EC50 value higher than Te , Cz and Dl .

先加孢子液然后再加不同浓度的甲霜灵体内的抗性测定，以上体内使用的3种不同的测定方法来看，Hm的分离菌株分别高于Te，Cz，Dl等菌株的EC50值。

When the concentration was 20mg / ml , the inhibiting rate was over 70 % , EC50 was 12mg / ml.

当苍耳提取物浓度为20mg/ml时，其对菌丝生长的抑制率可达到70%以上，EC50为12mg/ml。

Through regression assaying , the root length and shoot length EC50 were made out respectively , and then compared the sensitivity of2 grasses seedling to30 pesticides .

通过回归分析求出不同农药对2种草坪草根长与茎长的EC50值；并把30种农药对2种草坪草的敏感性进行比较。

Sensitivity to Metalaxyl was also evidently different , with the values of EC50 ranging from 0.077 μ g / mL to 0 . 448 μ g / mL.

对甲霜灵的敏感性也显著不同，EC50值0.077μg／mL～0.448μg／mL。

Conclusion EC50 of ropivacaine for postoperative epidural analgesia determined by up-down sequential allocation is 0.098 % , which can be decreased by the use of fentanyl .

结论罗哌卡因妇科术后硬膜外腔镇痛的EC50为0.098%。芬太尼可降低罗哌卡因术后镇痛的EC50。

On the contrary , erythromycin ( ERM ) depressed it and the EC50 of inhibition was ( 20.3 ± 1.8 )μ M.

而红霉素（ERM）对ENR脱乙基酶具有抑制作用，其抑制剂浓度EC50为（20.3±1.8）μM。

The results demonstrated that the product salt , has a satisfactory inhibition effect on the phytopathogens , with EC50 values for the three phytopathogens far lower than those with COS itself .

结果表明，产物是以盐的形式存在，对植物病原真菌具有较好的抑制作用，其EC50均远小于壳低聚糖。

The results of the inhibition of spore germination indicated that the fermentation products exhibited obvious inhibition rate against Alternaria longipes , the EC50 values was 62.5328 μ g / mL ;

抑制孢子萌发试验表明：菌丝体甲醇提取物对烟草赤星病菌的毒力较好，其EC50仅为62.5328μg/mL；

According to EC50 , the five ratios were determined by the evidence of six equal-part points of additive action line , and synergism was judged by the method of co-toxicity factor .

根据EC50，用等效线法相加作用线的6等分点设置配比，共毒因子法判断增效标准。

The fungicides which have good inhibitory effect were diluted by gradient dilution for carrying out the inhibitory experiments on the growth of mycelium . Toxicity index and EC50 were calculated by POLO software .

3采用生长速率法观测14种杀菌剂的抑菌效果，并对抑制菌丝生长效果较好的药剂采用梯度稀释法进行稀释，进行菌丝生长抑制试验，利用POLO软件计算其毒力指标，求出EC50。

As the important contribution of soil bacteria to soil biological activities , the EC50 value of 10 ~ 30 mg · kg-1 may be taken as critical value of mixed REEs added in yellow cinnamon soil .

由于土壤细菌对土壤生物活性的重要贡献，外源稀土在黄褐土中积累对细菌的安全临界值可以初步确定为10～30mg·kg-1。

The EC50 values of the highly-resistant and the highly-sensitive isolate were 1479.11ug/mL and 0.07244ug / mL , respectively .

经测定高抗菌株和敏感菌株的EC（50）值分别为1479.11μg／mL和0.07244μg／mL。