核体

From the temperature (612℃) slightly under its liquidus, the nucleation number was most in the melt, the primary grains were fine and global, the number of grains per area was more, and the optimum holding time was near 30min at 612℃. From the temperature (600℃) below its liquidus, the nucleation number was more, but some nucleuses congregated and grew dendritically.

其中 ，液相线铸造法〔4〕是我们开发的一种新的制浆方法，该法使金属熔体在液相线温度附近保温一段时间并形核，然后浇铸成具有细小球形组织的适合半固态成形的铸坯。

It is difficult to restore the large defect of pulpless tooth body. The dentinal peg and root canal peg filling were used before, which needed specialized instrumnets and materials.

无髓牙牙体大面积缺损的修复是比较困难的，主要有牙本质钉、根管钉桩核等修复方法，均需要专门的工具器械和材料。

The antifungal activities of these materials were investigated and build foundation to develop low poison plant antifungal products. In experiment, polyphenols were extracted by reflux ectraction method which applyed petroleum ether to degrease and methyl alcohol solvent. Phenolic hydroxyl were examined and inspected by colour-developing reaction and the content of total polyphenols was determined by UV-spectrophotometry. Screening test were performed to the antifungal activities of polyphenol extraction by the tube dilution method to the selected ten pathogenic fungus such as Dothiorella gregaria, Rhizoctonia solani, Phyllosticta pirina, and the minimal inhibitory concentration were measured. The column chromatography and thin layer chromatography were applyed to separate and analyse cortex extracts of Dracaena cochinchinensi Lour.

实验部分采用以石油醚脱脂，甲醇为溶剂的回流提取法来提取植物多酚，用显色反应检识酚羟基；采用紫外分光光度法对多酚粗体物进行总多酚含量的测定；选取了聚生小穴壳菌、立枯丝核菌、梨叶点霉等10株常见农林业致病真菌，采用试管液基稀释法对多酚粗提取物进行了抗真菌活性筛选试验，并测定其最低抑菌浓度；采用柱层析法和薄层层析法对其中抑菌效果较好的龙血竭进行分离分析，根据其中3种化合物的光谱数据UV、IR、~(13C-NMR、1H-NMR和MS鉴定其结构。

In this work, we used the sequences of nuclear genes (ITS, Adh2, Adh3 and Waxy) and cpDNA (trnL-F and matK) to explore the origin of Elymus species and the Y genome, and to reveal the mechanism of the geographical differentiation of the StY-genome Elymus species.

本文通过核基因ITS、Adh和Waxy基因以及叶绿体基因trnL-F和marK的序列分析了披碱草属相关二倍体种的系统发育关系和披碱草属植物的起源。

In eukaryotic cells,Toll-like receptors in endosomal membrane were show to recognize viral RNA in endosome and thereby initiate innate immunity pathways for virus resistance.By contrast,a cytosolic RNA receptor protein, RIG-Ⅰ(retinoic acid inducible gene-Ⅰ),has recently been identified for recognition of the viral RNA.

在真核生物体内，除了定位于内吞体膜上的TOLL样受体能够识别入侵机体的病毒RNA，启动机体抗病毒的固有免疫反应外，近年来发现了另一种能够识别病毒RNA的细胞质内受体——RIG-Ⅰ。

Methods To use Ce3+ or Pb2+ as capture agents to detect carbonic anhydrase, Na+-K+-ATPase, Mg2+-ATPase, 5' –nucleotidase and NADPH oxidase activities on endosome membrane in epithelial cells of renal proximal tubules、hepatic cell of rat and human leukocytes. with cytochemical method.

用细胞化学方法，以Ce3+或Pb2+作捕捉剂，分别检测碳酸酐酶，Mg2+-ATP酶，Na+- K+-ATP酶，5'-核等酸酶，NADPH oxidase在大鼠肾近曲小管上皮细胞、肝细胞以及人体嗜中性白细胞内吞体膜上的酶活性。

Immunohistochemical results showed FPNl was also present in the endothelium of blood vessels and in the ependymal cells of the brain.

FPNI抗体使细胞的Fe2+释放量减少了约50%。结论： FPNI在脑内分布广泛，主要分布在皮层、海马、黑质致密部、纹状体和疆内侧核等脑区。

Methods:Surgery was performed on kittens during the critical period (age 2～4 wks) to induce esotropic MS by sectioning the lateral rectus muscle of one eye and MD by lid suture.

结果：在正常发育幼猫的视皮质和外侧膝状体主要是在神经元核浆，呈深棕黑色免疫阳性反应，胞浆淡染。

EpNPV-Bt preparation, a new biological pesticide which is a mixture of bacillus thuringiensis and Euproctis pseudoconspersa Strand nuclear polyhedrosis virus, is provided with the virtue of non-toxicity, non-residue and non-pollution.

茶毛虫病毒Bt混剂是茶毛虫核型多角体病毒与苏云金杆菌混配而成的生物农药，具有无毒、无残留、不污染环境等优点。

With the development of molecular biology, based on yeast two-hybrid, many techniques such as yeast one-hybrid, reverse two-hybrid, three-hybrid, and extranuclear two-hybrid were set up to be applied in the research on the interaction between protein-protein, protein-DNA, protein-RNA, and protein-ligand.

随着分子生物学的发展，在酵母双杂交的基础上又建立起了酵母单杂、反向双杂交、三杂交及核外双杂交等多项技术，并已经成功地运用于蛋白质之间、蛋白质与DNA、RNA和配体之间相互作用的研究。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。