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Biomarkers of replicative senescence were assess in this model. The averages of life span of IMR 90 under NG,LG and HG culture conditions were 55 0,58 3 and 47 2 population doubling levels(PDL),respectively. 低、正常和高浓度葡萄糖培养条件组IMR 90细胞平均寿限分别为 5 8 3、5 5 0和 4 7 2PDL(群体倍增水平 ) .
population doubling level 群体倍增水平
After preparing 3 subcultures, the population doubling time of each cell line was determined. 在34个翼状赘肉中只有17个能够培养出纤维母细胞。
The population doubled within 50 years. 人口五十年内翻了一翻。
However, in another book, I found a graph showing yeast cell population growth and specific gravity plotted against time. 然而,在另一本书,我发现一个图表显示人口增长与酵母细胞比重密谋对付时间。
The cell population significantly increased in the G0/G1 phase from 51.72% to 61.63% and decreased in the S phase from 34.92% to 10.85% after rapamycin treatment. 细胞周期分析显示;雷帕霉素(20ng/ml)作用后;G0/G1期细胞较对照组增多(由51.;72%25增加到61
METHODS: WI 38 cells were divided into 4 groups and randomly added with different concentrations of Rg1. From 30 population doubling (PD), WI 38 cells were exposed to t BHP for 1 h at every two PDs. 方法 :将WI 38细胞随机分为 4组 ,用不同剂量Rg1预处理。从 30代开始 ,隔代用t BHP作用 ,每次 1h ,共 4次 ,诱导细胞衰老。
It can determine the expression of many genes in a single cell simultaneously and help to characterize the diverse cell population like dorsal root ganglion DRG neurons. 利用此技术，在同一颗细胞中可以了解很多基因的表现，如此可以更了解单一细胞的特性。
However, the limited use of tourniquets for orthopedic and vascular surgeries have been reported to be without significant sequelae in the sickle cell population (4). 然而，在镰状细胞病患者行矫形外科和血管外科手术时，有限制的使用止血带并未发现产生有意义的后遗症[4]。
Howeer, the limited use of tourniquets for orthopedic and ascular surgeries hae been reported to be without significant sequelae in the sickle cell population (4). 然而，在镰状细胞病患者行矫形外科和血管外科手术时，有限制的使用止血带并未发现产生有意义的后遗症[4]。
Cell populations can be preserved in the frozen state for long periods and r etain their viability. 在冰冻状态下，可长期保存细胞株，并保持其生活能力。
The olfactory neuroepithelium undergoes continual neurogenesis and, after extensive lesions, fully regenerates to maintain sensory function. The stem cell population underlying this regenerative capacity remains elusive. 嗅神经上皮可以进行连续的神经发生；遭受广泛的损害以后，还可以充分地重建以保持嗅觉。人们还不清楚支撑这种再生能力的干细胞数量。
A normal healthy fermentation will reach the stationary phase with a cell population up to 100 - 150 million viable yeast cells per milliliter. 发酵达到正常健康的细胞,与固定相人口多达100-150万可行酵母细胞每毫升。
The frenzied economic growth that saw the state's population double between 1990 and 2007 has reversed. 自1990年到2007年，该州经济高速增长，人口增倍，然而这种趋势已经扭转。
Cell populations can be preserved in the frozen state for long periods and retain their viability. 在冰冻状态下,可长期保存细胞株,并保持其生存能力。
The pioneer of angiogenesis research,Judah Folkman,has stated that" once tumor take has occurred,every increase in tumor cell population must be preceded by an increase in new capillaries converging on the tumor". 肿瘤血管生成(Angiogenesis)研究的先驱,Judah Folkman明确指出:肿瘤一旦发生,任何肿瘤细胞数量的增加都必须以聚集于肿瘤的新血管生成为先导。
This paper analyzes CDN network construction technology, and then puts forward more advanced model. It researches CDN content routing and proposes double level load balancing strategy. 本文主要研究分析了:CDN组网技术,提出了改进的网络层次架构:CDN内容路由机制,提出两层负载均衡策略。
During 1984 the number of towns meeting the new urban criteria increased more than twofold, and the urban town population doubled. 在1984年，一些城镇举行新的城市的标准增加两倍以上，城市城镇人口翻了一番。
With separation into T and B cell areas, non-lymphoid cell populations develop at characteristic sites. 在分成T和B淋巴细胞区的同时，非淋巴细胞群也在特异的位点开始发育。
Abstract： A method that adopts double level converter circuit to have made a new style of discharging device: "singlephase active inverter battery feedback discharging device", is instruduced. 摘要：提出了采用双级变换电路的方法，研制出一种新型的单相有源逆变蓄电池回馈放电装置。