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- The several theoretical models of cell inactivation or cell survival fraction are introduced. 摘要介绍了经辐射损伤后细胞失活或存活的理论模型及相关问题的一些研究工作。
- The results of colony-formation assay suggested that the smac gene transferred group showed significantly lower survival fraction than vector pcDNA3.1 transferred group (P<0.05). 克隆形成实验结果表明;转染smac基因组细胞12C6+离子照射后的存活分数较转染空载体组细胞显著降低(P<0.;05)。
- Methods The surviving cell number and surviving fraction (SF) of MCF 7 and Colo 205 cell lines following irradiation with 2,4,and 8 Gy were measured by using Courtenay Mills clonogenic and growth assays. 方法选用人类乳腺癌MCF?7及结肠癌Colo205细胞株，在接受2Gy、4Gy、8Gy放射处理后，用以上两种方法检测活存的肿瘤细胞数。
- The surviving fraction of Hitler’s library is unrepresentative. 希特勒藏书中留存下来的那部分并不具备代表性。
- Cell cycle analysis suggested that SW1990-R, ASPC-R, MIA-R, PAN-R and P3-R had lower G_2/M and greater SF_2 (survival fraction after 2 Gy irradiation) compared with the parental cell lines. 耐放射株SW1990-R、ASPC-R、MIA-R、PAN-R及P3-R的G2/M均明显降低,而放射敏感性指标SF2升高9%25~45%25。
- The surviving fraction of 125 I-UdR groups were significantly lower than that of Na 125 I groups(P<0.01). 1 2 5I UdR组的存活分数明显低于Na1 2 5I对照组 (P <0 0 1) ;细胞存活分数有随培养基中放射性浓度和培养时间增加而降低的趋势。
- The survival curves of heavy ions showe d as lines and one-target models, when survival fractions were 50% and 10%, the RBE of SMMC-7721,HeLa and B16 cells were 3.40? 2.76? 4 67 and 1.88? 细胞经重离子处理后表现为无肩区的存活曲线 ,属单靶击中模型 ,在细胞存活分数为 5 0%25和 10%25时得到SMMC 772 1、HeLa、B16细胞的RBE值分别为 3 40、2 76、4 6 7和 1 88、1 5 3、2 2 2。
- The liver cancer cell BEL7402 surviving fraction did not change obviously after 24 hours or 48 hours hypoxia, whereas, those which were radiated with hypoxia compared with not increased obviously. 缺氧24h与48h组的肝癌细胞株BEL7402存活分数变化不明显,加照射后的实验组则明显下降而缺氧加放射组与单纯放射组比较细胞存活分数明显升高。
- Survival is our first imperative. 我们当务之急是设法生存下来。
- That fashion is a survival from the 1930s. 那种时装是三十年代的遗风。
- The soil absorbs only a fraction of the rain that beats down. 土壤只吸收猛打到地面上的雨水的一部分。
- The old man is a survival of the past age. 这老人乃上一个时代的遗老。
- Today the survival of our species is threatened. 今天人类的生存受到了威胁。
- I'll be ready in a fraction of a second. 我马上就好。
- Does our only hope of survival lie in disarmament? 我们求生的唯一希望就在於裁军吗?
- The story does not contain a fraction of truth. 这故事没有一点真实性。
- He has done only a fraction of his homework. 他只做了家庭作业的一小部分。
- The car stopped within a fraction of an inch of the wall. 汽车在离墙不到一英寸的地方停住了。
- We need food and water for survival. 我们为了生存需要食物和水。
- Could you move a fraction closer? 你能不能稍微再挪近点儿?
