细胞核DNA成功地从一只1.3万年前的鸸鹋蛋壳和一只巨大的恐鸟蛋壳中被提取出来了。
Nuclear DNA was successfully extracted from a 13,000-year-old emu eggshell and a giant moa eggshel.
本研究旨在构建具有猪 MSTN 前肽基因定点突变的真核表达载体。
This research intended to construct a eukaryotic expression vector with a site-directed mutation of porcine MSTN propeptide gene.
这使福岛达到了在25年前这个月发生的切尔诺贝利核灾难的高度(尽管福岛泄露的放射性物质只是切尔诺贝利泄露的十分之一,而且没有人死于泄露的放射性物质)。
That places it on a par with the Chernobyl disaster 25 years ago this month (though the radiation released at Fukushima is only a tenth of Chernobyl's, and nobody has died from it yet).
那些在被和好斗老鼠关在一起之前没有跑步的老鼠的大脑视前内测核的神经元的活性要低得多。
The animals that had not run before moving in with the mean mice showed much less neuronal activity in these portions of the brain.
几乎就在五年前,美国国会削减了一种引起争议的掩体核弹——坚实型核钻地弹——的研究经费。
Almost five years ago, America's Congress cut research funding for a controversial bunker-busting nuke called the Robust Nuclear Earth Penetrator.
就它们与恒星的距离而言,其石质行星核恐怕需要极其长的成型时间,以至于在星核能够俘获气体前周围的气态盘恐怕就已经消散殆尽了。
At their distances from the star, the rocky planetary core would have taken so long to form that the gaseous disk would have dissipated before the core could attract the gas.
预期的改进包括一个双核处理器、一个高质量显示器和一个前视相机以及一个sd卡插槽。
Expected improvements include a dual-core processor, a higher-quality display, a front-facing camera, and an SD card slot.
病毒跟我们是一家人:科学家认为,十多亿年前一个大的DNA病毒在细菌细胞内居住并形成了第一个细胞核。
We are family: Scientists suspect that a large DNA-based virus took up residence inside a bacterial cell more than a billion years ago to create the first cell nucleus.
伦敦大学学院的研究人员发现,自由派往往有一个较大的前扣带皮层,而保守派则有较大的杏仁核。
Researchersat University College London found that liberals tend to have a larger anteriorcingulate cortex, while conservatives have a larger amygdala.
以核标准研究中心,施乐等历史指挥中心而闻名,再找到平衡前罗切斯特遭受了数十年的侵害。
Known as the historical headquarters of past-their-prime corporate icons like Kodak, Xerox and Bausch &Lomb, Rochester suffered decades of painful contraction before finding its equilibrium.
实验中,不论试验者现在住在哪里,只要他们在乡村长大,那么在他们的大脑中,前扣带皮层和杏仁核之间的联系是在预料之中的。
In the cases of those brought up in the countryside, regardless of where they now live, the correlations were as expected.
在这些实验中,试验者的大脑中既没有显示杏仁核的活动,也没有显示前扣带皮层的活动,这表明之前的实验结果确实是由社会压力引起的,而不是由心理活动引起的。
These experiments showed no activity in either the amygdalas or the pACC, suggesting that the earlier results were indeed the result of social stress rather than mental exertion.
最近有证据指出,45亿年前太阳系形成的时候,彗星有液态的核。
Recent evidence suggests that when the solar system formed 4.5 billion years ago, comets had liquid cores.
在选举中MrAhmadinejad将要面临的最严峻的挑战来自其他的保守派比如说ali Larijani,前核谈判专家。
In that election Mr Ahmadinejad's toughest competition will come from other conservatives such as Ali Larijani, a former nuclear negotiator.
在希腊地层(Hellenistic layer)之下的建筑中,加芬克尔找到了四个橄榄核,经碳-14分析确定其年代为公元前1000年左右。
Beneath that Hellenistic layer he found buildings scattered with four olive pits, which carbon-14 analysis dated to around 1000 B.C..
全球零核的富有说服力的支持者对怀疑者提出的每个异议都有貌似合理的答案,例如谈判第一份俄美新核裁军条约的前美国外长理查德·伯特(richard Burt)。
Global Zero's persuasive backers, such as Richard Burt, a retired American diplomat who negotiated the first START treaty, have plausible answers to every objection raised by sceptics.
26岁的法尔范也是所效力俱乐部沙尔克04的真核所在,上个赛季,沙尔克能够在欧冠赛场上取得前四强的历史性成绩与他的表现是分不开的。 法尔范是在周五的训练中受伤的,他需要接受进一步的扫描检查以确定伤势。
The 26-year-old, who inspired his German club side Schalke 04 to the semi-finals of last season's UEFA Champions League, sustained a thigh injury in training on Friday.
它还要求阿塞拜疆释放俄罗斯的核设备装运已停止与伊朗在其边界大约三个星期前。
It has also demanded that Azerbaijan release a Russian shipment of nuclear equipment that was stopped at its border with Iran almost three weeks ago.
所得反应截面包括复合核前的一次过程和多次过程的反应截面以及复合核反应截面。
The reaction cross section obtained includes the part from precompoundsingle and multistep processes and the part from compound reactions.
而身为前核谈判代表的鲁哈尼表示仍然有妥协的余地。
Still, Rowhani, a former nuclear negotiator, suggests there is room from compromise.
当对照组受到气味刺激时,双侧的杏仁核、梨状叶、前岛叶和扣带回皮质激活。
When the controls perceived odors, the bilateral amygdala, piriform, and anterior insular and cingulate cortices were activated.
在大鼠下丘脑离体脑片上,用电生理细胞外记录法研究了前连合核神经元的放电频率及其波形。
The firing rates and patterns of neuronal activity in the anterior commissural nucleus (ACN) were studied on in vitro hypothalamic slices using electrophysiological techniques.
来自于人类和其它灵长类动物的研究已经发现有一些脑结构(如杏仁核、前额叶、颞上沟、扣带前回等)在社会认知中起着特殊重要的作用。
Studies in humans and other primates have been focused on several structures, such as the amygdala, the prefrontal cortex, the superior temporal sulcus, the anterior cingulate cortex and some .
因此可以把前角区轻带电粒子发射产额作为探测丰质子核结构的一种手段,也是一种新的验证一个核是否具有质子晕结构的实验证据。
It can be regarded as a possible probe to explore the structure of proton rich nuclei and a new way to provide an evidence for existing proton halo.
结果发现:大鼠尾壳核接受来自大脑皮质广泛区域的投射,包括额叶皮质1~2区、顶叶皮质1~2区和扣带前皮质等。
The retrograde labelling is present in wide areas of cortices including areas 1 and 2 in frontal cortices, areas 1 and 2 in the parietal cortices and the cingulate gyrus.
结果:关节盘前移位后,双板区内可见部分细胞的胞核呈圆形或椭圆形,其内PCNA阳性。
Results: After ADD, some cells in the BZ appeared round or oval shape, in which PCNA was positive.
结论:1中央前沟首次出现在豆状核及内囊前肢出现而前连合及背侧丘脑尚未出现的1 ~2个断面上。
Conclusion: the precentral sulcus appears on the 1 2 sections that the lenticular nucleus and anterior limb of internal capsule appear but the anterior commissure and dorsal thalamus doesn't appear.
结论:1中央前沟首次出现在豆状核及内囊前肢出现而前连合及背侧丘脑尚未出现的1 ~2个断面上。
Conclusion: the precentral sulcus appears on the 1 2 sections that the lenticular nucleus and anterior limb of internal capsule appear but the anterior commissure and dorsal thalamus doesn't appear.
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