钙

The concentrations of free calcium ion, calmodulin and cyclic adenylic acid in the rat brain were determined.

结果显示，模型大鼠脑内游离钙离子、钙调素和环核苷酸含量降低，阿米替林可使模型大鼠脑内游离钙离子、钙调素浓度升高，而对环核苷酸则无影响。

After several practical problems are resolved,the relation between contents of S,Si and Al has been disclosed.The ratio of Ca to Alin in steel is 1.26∶1 after calcium treatment,the nozzle clogging does not happen and the consumption of calcium is reduced.The recovery factor fluctuation of boron are 64% and ±5×10-6, respectively.

通过硼微合金化若干工艺问题的解决和工艺优化，明确了钢水硫含量、增硅、铝控制之间的内在关系；使SPHC钢成分合格的同时，实现硼收得率达到64%，硼的质量分数波动±5×10-6；钙处理达到钢水中w∶w为1.26∶1时，确保水口浇注顺利，同时节省钙线用量。

Objective: To study the effect of differe n t extracts of Alisma orientalis on urinary calcium oxalate stone formation i n rats and to identify the ef fective constituents.

中文摘要：目的：研究泽泻提取物不同组分对尿草酸钙结石形成的影响，并确定其抑制尿草酸钙结石形成的有效部位。

Conclu sion: The ethyl acetate elution of ethyl acetate fraction extract of Alisma orientalis can significantly inhibit urinary calcium oxalate stone formation in rats and be the most effective constituent of Alisma orientalis .

泽泻醋酸乙酯浸膏的醋酸乙酯洗脱液能抑制实验性高草酸尿症大白鼠体内肾草酸钙晶体的形成，是泽泻抑制尿草酸钙结石形成的有效部位。

The influence of ZnO on the formation of minerals and the temperature range for the coexistence of C4A3S and alite in clinker containing calcium sulphoaluminate 4CaO.

借助差热分析、X射线衍射及化学分析等，研究了ZnO对含硫铝酸钙的硅酸盐水泥熟料中阿利特和硫铝酸钙矿物形成及共存温度范围的影响。

The alkalization of Calcium alkylsalicylate was studied by UDED (uniform distribution and experimental design).

运用均匀设计对烷基水杨酸钙碱化反应进行研究，成功解决了产品钙含量、碱值偏低的主要问题。

Here we summarize the progress of salmon calcitonin's heterogenous expression in prokaryotic and eukaryotic expression systems as well as the amidation of C-terminal. Both the biological activity of salmon calcitonin and the biologic expression system can be improved by genetic engineering techniques.

本文综述了鲑鱼降钙素基因在大肠杆菌、链霉菌、乳酸杆菌和蓝藻等原核细胞，在酵母、昆虫、动植物等真核细胞中异源表达的研究进展，以及通过基因工程的方法能够改进生物表达系统，提高鲑鱼降钙素活性的动态。

The suitable method to dissolve Antheraea pernyi silk fibroin fibers and the character of regenerated silk fibroin solution were investigated in this paper.

研究了柞蚕丝素纤维的溶解途径和再生丝素溶液的性质，指出硝酸钙和硫氰酸锂的浓溶液是柞蚕丝素纤维的良溶剂，再生柞蚕丝素的分子量为20kDa～102.4kDa，硝酸钙对丝素大分子的破坏程度比硫氰酸锂大。

Self-pollination was brought as the essential reason for causing emptied seeds by former researchers. Based on those studies, potassium antimonate and electron microscopy were used to study the calcium distribution of pollens in the micropylar canal of self-pollinated and cross-pollinated ovules and morphological changes in certain cells undergoing programmed cell death from pollination to fertilization, and observation of histo-chemical changes during microgametopyte development was performed by paraffin section.

前人研究认为自交是华北落叶松产生空粒的主要原因，本论文在此基础，运用焦锑酸钾沉淀法配合电镜观察研究了传粉后到受精前异交控制和自交辅助授粉胚珠珠孔道内花粉的钙分布情况，及此过程中细胞程序化死亡超微结构的变化，并通过石蜡切片研究了华北落叶松传粉后到受精前雌配子体发育过程及细胞内含物的变化，以研究在受精前胚珠内是否存在花粉识别与选择系统，探讨钙信号传导和花粉与胚珠相互作用及细胞程序化死亡的关系。

Objective To observe the effects of calcium dobesilate on the expression of CD34 and von Willebrand factor in peritubular capillary in renal tissues of rats with chronic arisolochic acid nephropathy and to explore the probable mechanism concerned. Methods Sixteen Wistar rats were infused with Caulis aristolochia manshuriensis decoction for 12 weeks, then randomly divided into 2 groups.

目的 观察羟苯磺酸钙对慢性马兜铃酸肾病大鼠肾小管周毛细血管内皮细胞特异抗原CD34和血管性血友病因子表达的影响，探讨羟苯磺酸钙改善CAAN大鼠模型肾脏微循环障碍的作用和机制。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。