周期

P16 gene is composed of two intervening sequences and three exons , and encodes p16 protein , which is the inhibiter of CDK4 and CDK6 . They can together prevent phosphorylation deactivation of pRB , and make the cell cycle blocked in G1 stage. P16 gene promoter region has a great of CpG islands , which can be methylated when some adverse factor appears , and so the genetic transcription of p16 can be inhibited , which leads to gene silencing, cell paraplasm, and tumor generate.

抑癌基因p16编码蛋白P16 ，是细胞周期蛋白CDK4和CDK6抑制剂，它阻止pRB磷酸化失活，使细胞周期阻滞于G1期。P16基因启动子区域富含CpG岛，当受到各种有害因素影响时，容易发生甲基化，从而抑制P16基因转录，导致基因沉默，细胞异常增生，导致肿瘤的发生[5]。

These photoperiodic response curves show that Photoperiodic response may be temperature-compensated or temperature-sensitive and based on quantitative or qualitative photoperiodic time measurement. These photoperiodic response curves also show that effects of ultra-short and ultra-lo...

根据这4种光周期反应类型显示的结果，光周期反应可能是温度补偿或温度敏感的；基于数量的时间测量或基于质量的时间测量的；极短日照或极长日照对滞育诱导的影响是不同的；诱导夏季滞育的长日照和诱导冬季滞育的短日照对滞育诱导效果是不同的。

In addition, the summer AO mode changes much between before and after the abrupt change, especially the pleion in the East Asian land.

从夏季AO指数和EASM指数奇异谱分析的重建序列中发现，它们的长期趋势以及准20-30a周期的重建序列的相关系数较高，而它们的年际的周期的重建序列的相关系数不显著。

This prescriptiveness is surely the content of social history.

本文研究民国社会史，是以一种世纪回眸的胸怀把自鸦片战争以来百年激荡当作一个较长的历史周期，民国初年这一时段仅是百年周期之一环。

In obese children, leptin concentration decreased during 4 mo of physical training and increased during a subsequent 4-mo period without physical training, fat mass was highly correlated with baseline leptin, and greater reductions in leptin during 4 mo of physical training were seen in children with higher pretraining leptin and in those whose total mass increased least.

在肥胖小孩中，4mol 周期体力运动使瘦素浓度降低，在接下来不运动的4-mo 周期中，瘦素水平提高。在那些体重增长最慢、运动前瘦素水平高的肥胖小孩中，4-mo 体力运动周期使其瘦素水平降低程度非常明显。第二篇翻译原文全文。pdf (43.99k)杂志，年，卷，期，页

Objective To explore the significance of DNA ploidy and cell proliferous ratio of prostate intraepithelial neoplasia in diagnose and differential diagnose.

目的探索DNA倍体类型、细胞周期在前列腺上皮内瘤中诊断和鉴别诊断的价值。方法应用细胞图像分析技术检测前列腺上皮内瘤细胞的平均DNA含量、DNA平均倍体值及细胞周期的各个时相的变化。

Experimental investigations on pulsant behaviors of particle flow were carried out on a two-dimensional spouted bed using PIV .

本文基于 PIV 处理颗粒流动图像获得了颗粒流动的瞬时速度；基于功率谱密度分布对瞬时速度的分析结果表明，喷射区轴线的中下部颗粒存在较强的速度脉动，环隙区颗粒速度脉动较弱；研究发现喷动周期与床体压力脉动周期基本一致。

However,different periods were found in middle and bottom waters, due to the influences of tidal induced physical forcings such as resuspension and stratification.

表层叶绿素α浓度、微微型浮游生物和病毒丰度的周日波动呈现典型的半日周期(11-13小时)变化，而中层和底层由于沉积物再悬浮作用和水体层化现象的影响，波动周期与表层明显不同。

First, some seismotectonic belts in southeast and northeast Qinghai-Tibet Plateau which have similar geodynamic background are selected.

本文从地震地质学角度出发，充分利用地震学和岩石力学等学科中的相关研究理论和方法，将地震活动与具体的地震构造相结合，探讨了包含多个孕震区或断裂带的大陆板内地区的地震复发规律，提出了大陆板内地震的准周期丛集复发模式，并系统、全面的研究和讨论了不同断裂之间的相互作用及其对活动断裂地震危险性的影响，从机理上揭示了大陆板内地震准周期丛集复发行为的内在物理基础。

The control performances of Networked Control Systems are considerably constrained by sharable computing and networked resources.

网络控制系统的控制性能受限于共享的计算资源和网络资源，如何对NCS中的周期和非周期的复杂信息流进行有效的调度成为影响系统控制性能的关键因素。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失