钙的

This important step in the development of the body plan is known to involve the Notch signalling pathway, which regulates expression of the Nodal gene.

以前的研究认为Notch信号中的Nodal 基因和胞浆内自由钙是主要决定因素，最新的研究显示细胞外钙也是重要的因素，它能被Notch信号感受，并表达不同的基因。

It has been well established that metals present in trace amount in raw materials have great influence not only on the anode quality but also on the performance of anodes in the electrolytic cell and on the quality of aluminum liquids.

测定了抚顺铝厂所用的4种炭电极原材料中铁、钙和镍的含量，结果表明，仅从铁、钙、镍三种微量元素含量的角度来选择原材料，辽阳3号延迟焦和改质沥青在提高产出铝的质量，降低阳极消耗方面来说是较好的选择。

Current studies are focusing on free radicals, overload and oscillation of intracellular Ca〓, the changes of intracellular pH and osmotic pressure, activation of endothelial cells and injury induced by neutrophilic granulocyte, cytokines and transcriptional factor NF-KB, etc.

目前的研究主要集中在自由基、细胞内钙超载和钙震荡、细胞内pH和渗透压的变化、内皮细胞的激活、中性粒细胞介导的损伤以及细胞因子和转录因子NF-KB等所引起的损伤。

While deficiency of vitamin D impacts health negatively, ingestion of extremely high doses of vitamin D can cause hypercalcemia, a condition in which the blood's calcium level is above normal.

虽然缺乏维生素D的健康产生不利的影响，摄取的极其高剂量的维生素D可导致高钙血症，一个条件，其中血液的钙水平高于正常。

The nucleation and growth of thermodynamically unstable calcium oxalate trihydrate crystals were faster than those of thermodynamically stable calcium oxalate monohydrate crystals when the crystallization was in higher concentrations of calcium and oxalate (in the form of potassium oxalate). however, only com crystals formed when the concentrations of calcium and oxalate declined to 0.60 mmol/l.

结果 ca2+和c2o42-浓度较高时，热力学不稳定的三水草酸钙晶体成核及生长的速度比一水草酸钙晶体快，而随着ca2+和c2o42-浓度的降低，com晶体的成核和生长占优势，当浓度降低到0.6 mmol/l时，只出现com这一种晶型。

It should be noted that not only in the complex perovskite like BaO3,(X=Mg, Zn, Co, Ni, Mn: Y=Nb, Ta) but also in the compounds with tungsten bronze structure such as Ba6-3xLn8+2XTi18O54, they are consisted of corner-sharing oxygen octahedra and the ratios of ion in B site to ion in A site are usually larger than one.

值得注意的是业已开发出来的材料不论是复合钙钛矿BaO_3，(X=Mg，Zn，Co，Ni，Mn；Y=Nb，Ta)还是钨青铜结构，它们都是由氧八面体共顶连接，而且氧八面体内、外阳离子比例都等于或略大于1，因此，我们推测在B位与A位阳离子比例略小于1的类钙钛矿结构中极有可能存在具有优良介电性能的新材料。

Favorable climatic geographic proximity, the region because of high calcium limestone, and its production of calcium hydroxide in the calcium content of 95%~ 98%, and the fineness of 325 mesh in the above, coupled with advanced production technology, production equipment and is responsible for the work attitude, products in medicine, food, paint, desulfurization, skim coat, sewage treatment and other industries have been widely used.

得天时地利之便，由于本地区石灰石含钙量高，其生产的氢氧化钙的钙含量在95%~98%以上，细度在325目以上，加之先进的生产技术、生产设备和负责的工作态度，产品在医药、食品、涂料、脱硫、皮毛脱脂、污水处理等行业得到广泛地运用。

The presence of calcic horizon availed the invasion and residence of A. frigida which is a relatively shallow-rooted plant. In conclusion, the ultimate cause for the succession of A. ordosica community mainly contributes to the changes of soil substrate, especially the formation of calcium carbonate.

钙积层的形成使得较油蒿根系更浅的冷蒿植物得以侵入、定居，而油蒿则逐渐退出，因此，土壤基质变化尤其是土壤钙积层的形成是油蒿群落演替的根本原因。

But the levels of 〓 elevation were lower than that in normal Tyrode's solution (P＜0.01 respectively), indicating that Ca〓 influx did contribute to the elevation of 〓. Ryanodine remarkably blocked the 〓 elevation by Str 1, 100nmol/L and 10μmol/L in normal Tyrode's solution, while ryanodine 10μmol/L, ruthenium red 10μmol/L and caffeine 10 mmol/L completely blocked the effects of Str on 〓 elevation in Ca〓- free Tyrode's solution (P＜0.01 respectively).

去除细胞外液中的钙离子，Str 1，100nmol/L和10μmol/L仍能分别升高〓到13±5％，71±8％和145±14％，但幅度低于其在正常台氏液中的作用。10μmol/L的ryanodine，10μmol/L钌红或10mmol/L咖啡因均可完全阻断Str 1，100nmol/L和10μmol/L在无钙台氏液中的作用(P＜0.01)。

It can be used in studying the calcium dynamics, in addition it\'s applicable for real-time, less damage and long-playing observation. It might be important to study calcium of spine with stimulations of neurotransmitter and action potential.

结果表明，利用Cameleon 的FRET 比值变化来定量监测树突棘钙动力学的方法是切实可行的，并可以进行实时、无损、长时间的监测，为研究神经递质、动作电位等刺激对树突棘内钙信号影响提供一种重要研究手段。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。