目的：利用聚合酶链反应定点突变技术构建人血小板反应素1基因第13外显子编码钙结合域突变体。
AIM: To establish the mutant of coding calcium binding fragment of the 13th exon of human thrombospondin-1 (TSP-1) gene with polymerase chain reaction (PCR) site directed mutagenesis technology.
我们的大脑和身体会把一场激烈的比赛当成一个紧急事件，然后心跳就会加速，血压猛涨，肾上腺素作出急性应激反应。
The brain and body tend to treat an intense sporting competition as an emergency, sending the heart racing, blood pressure skyrocketing, and stress hormones spiking in a fight-or-flight response.
根据新协议，一年内，伊朗将向土耳其输送1200千克储备低纯度浓缩铀以交换其120千克浓缩铀（纯度约20%）用以生产药用（特别用于癌症的治疗）同位素的研究用反应堆。
Under the new deal, Iran says it would send 1,200 kg of its stockpile of low-enriched uranium to Turkey.
为了使一个细胞能够直接对胰岛素做出反应，因此在它表面必须有一个胰岛素受体。
In order for a cell to respond directly to insulin it must display an insulin receptor on its surface.
然而，有糖尿病的人，胰腺要么生成一点或根本没有生成胰岛素，或者是细胞没有正确的反应胰腺分泌的胰岛素。
In people with diabetes, however, the pancreas either produces little or no insulin, or the cells do not respond appropriately to the insulin that is produced.
去麸皮后，不能再让麸皮中的纤维放慢剩下的淀粉的释放的速度，剩下的淀粉成为一种快糖，它也可以引起血糖升高和一系列的胰岛素反应。
The starch which is left is no longer slowed down by the fiber in the bran, making it a fast sugar which also causes a rise in blood sugar and a subsequent insulin response.
一旦反应堆关闭，它仍热存在有来自其他放射性同位素踪迹的衰变热。
Once the reactor has shut down, there remains "decay heat" from traces of other radioactive isotopes.
他的血糖并不像一个糖尿病患者那样对胰岛素做出反应。
His blood glucose isn't reacting to the insulin the way a diabetic should.
不吃饭一族有空腹血糖水平升高而胰岛素反应延迟的状况，如果他们长期坚持，可能会导致糖尿病。
The meal skippers had elevated fasting glucose levels and a delayed insulin response -conditions that, if they persisted long term, could lead to diabetes.
然而就像其他种类的药物一样，不同种类的抗生素之间也存在着各种各样的反应。
However, as with other sorts of drug, different types of antibiotic may interact with one another in unexpected ways.
这种蛋白通常是在神经细胞对神经传递素起反应时产生，因此它也被认为是神经细胞行为活动的生物标志。
This protein is often produced when nerve cells are reacting to neurotransmitters and is thus regarded as a general marker for nerve-cell activity.
氡容易离子化，这让人期望，该元素有最广泛的化学反应，但是，这个元素最稳定的同位素也极不稳定，这使氡的研究受到了严重的约束。
Although the easier ionization of radon leads one to expect the most extensive chemistry for that element, the high instability of even the most stable isotope has severely limited studies of it.
他们对研发成功可使用的核弹并建造自己的反应堆感到自豪，尽管之后的制裁阻止他们输入技术并出席讨论同位素的会议。
They are proud of having developed a workable bomb and built their own reactors, despite sanctions that prevented them from importing technology or from attending conferences to discuss isotopes.
肥胖和超重的人，有更大的可能形成胰岛素抵抗，在这种情况下，细胞不再对胰岛素起反应，不再吸收葡萄糖。
Obese and overweight people, are more likely to develop insulin resistance, a condition in which the cells no longer respond to the hormone and absorb glucose.
反应堆释放的一种放射性物质就是碘的同位素，其会人们尤其是儿童造成严重的健康损害。
One of the radioactive materials released by reactors is radiative isotopes of iodine, which poses a serious health risk particularly to children.
它们被认为是生物反应的调节者，具有有激活巨噬细胞和T细胞的能力，并产生细胞因子、白细胞介素和肿瘤坏死因子。
They are reported to serve as biological response modifiers with the capability to activate macrophages and T-cells, and to produce cytokines, interleukins and tumor necrosis factors.
他们发现糖就像兴奋剂一样，让细菌的正常反应得以恢复，从而使它们对抗生素的攻击更为敏感。
They found that sugar ACTS as a stimulant that switches on normal bacterial responses, rendering the bugs vulnerable to antibiotic attack.
她们比男性有具有更多的处理机制去解决疼痛(比如说，更复杂的内啡肽和催产素反应)并且因此能够经历生命中更艰难的部分：如生育。
They have more coping mechanisms than men do to deal with pain (i.e. more complex endorphin and oxytocin responses), and can therefore get through much more arduous parts of life, such as childbirth.
皮质醇和肾上腺素是人体对抗机制的必要组成部分，这种生物神经机能对于危险情势的反应已经进化了数百万年。
Cortisol and adrenaline are essential components of humans' 'fight or flight' mechanism - the neuro-biological response to stressful situations that has evolved through millions of years.
抗生素可能存在出现不良反应的风险。
There may be a risk of an adverse reaction to the antibiotic.
铀或钚的同位素被称为裂变材料，即我们可以利用自由中子去轰击它们来产生裂变反应。
The uranium or plutonium isotopes are referred to as "fissile," which means we can use them to induce fission by bombarding them with free neutrons.
下丘脑是对瘦素起反应的最主要的大脑区域，通过传递信号来抑制食欲。
The hypothalamus is the primary brain region that responds to leptin, sending a signal that curbs appetite.
天文学家想在月球远端放置射电望远镜；能量学家想提取月球上的氦3这种可以驱动清洁融合反应器回到地球的同位素。
Astronomers talk of placing a radio telescope on the moon's far side; energy experts want to mine the moon's helium 3, an isotope that could power clean-fusion reactors back on Earth.
尤其必须立即采取行动，执行有关用伊朗自己提炼的低浓度浓缩铀为德黑兰作研究用的反应堆提供燃料的计划——该反应堆用于生产医用同位素。
In particular, prompt action is needed on implementing the plan to use Iran's own low-enriched uranium to refuel the Tehran research reactor, which is used to produce medical isotopes.
本期《经济学人》付印之前，伊朗是否接受或讨价还价这项片面协议交易尚不明朗，该协议将使制造医学上同位素的一座研究反应炉维持运转。
As the Economist went to press it was unclear whether Iran would accept or haggle over the deal, which would keep in operation a research reactor that makes medical isotopes.
作为个体，这些蚂蚁只是遵守一套简单的规则，并对局部信息做出反应：跟随信息素发出的信号以及将食物搬回巢穴。
Individually, these ants are following a simple set of rules and acting on local information: follow the pheromone clues and bring food back to the nest.
给不满一岁的婴儿摄入抗生素是否会导致他们会在儿童时期患上哮喘或者过敏反应？
Could giving infants antibiotics in their first year of life trigger asthma and allergies that develop later on in childhood?
最简单的发光反应需要一种叫做荧光素有机分子，在荧光素酶的帮助下，进行被氧气氧化的氧化反应。
The simplest light-producing reactions require an organic molecule, known as a luciferin, to be oxidised by oxygen, a process that is helped along by an enzyme known as luciferase.
评论家们认为需求增加的原因并不仅仅是医用同位素，还有加拿大坎杜型反应堆，它需要利用很多其他地方的不同技术。
They believe that demand will rise not just for medical isotopes but also for Canada's CANDU reactors, which use a different technology from many elsewhere.
评论家们认为需求增加的原因并不仅仅是医用同位素，还有加拿大坎杜型反应堆，它需要利用很多其他地方的不同技术。
They believe that demand will rise not just for medical isotopes but also for Canada's CANDU reactors, which use a different technology from many elsewhere.
应用推荐