分子

The expression of CD40, the infiltration of inflammatory cells and the distribution of Langerhans' cells in the skin of neurodermatitis patients was investigated by analyzing the distribution of Langerhans' cells and CD40 expression in injured skins of different degrees of inflammatory, infiltration at different stages of the disease by immunohistochemical mathod.

通过分析神经性皮炎组织病理变化、炎性细胞浸润、朗格汉斯细胞的分布以及CD40分子的表达，探讨这些变化与临床分型及病程的相关性。应用常规病理切片分析以及免疫组化的方法，观察LC和CD40分子在不同病期和炎症浸润程度皮损中的分布和表达情况。

Morse potential function was employed to describe interaction forces, and coupling followed Newton's second law of motion. A Gear's predictor-corrector algorithm was used to calculate molecular positions, velocities and accelerations at every time step.

奈米超微粒分子间采用 Morse 势能模型来计算铜原子间的作用力，依循牛顿第二运动定律，并使用 Gear 五阶预测修正法来分析每个步阶的分子位置，速度等物理量。

This seems to be because sirtuins control the abundance of a regulatory molecule called nicotinamide adenine diphosphate which, in turn, controls the release of energy in the mitochondria.

这是因为sirtuins控制着一种叫做烟碱腺嘌呤二磷酸的调节性分子的数量，而这种分子反过来又控制着线粒体中的能力释放。

The results showed that the two compounds could be separated by the nicotinamide-MIP monolithic column. The column is very useful for the enrichment and detection of nicotinamide in body fluids.

结果表明，原位聚合法制备的整体分子印迹聚合物在以纯水作流动相时对模板分子与其类似物有快速分离能力，这对于体内药物的分离富集研究具有很好的应用前景。

Two classes of specific binding sites in the polymer matrix were investigated by Scatchard analysis, which indicated that two kinds of complexes between functional monomers and templates were formed before the polymerization process. Comparing with the structure of TNT and acrylamide, one kind of complex between TNT and acrylamide was strongly charge-transfer complexing interaction by p-πcomplex between electron-rich amino group of acrylamide and electron-deficiecy-benzene ring of TNT, the other was hydrogen bonding interaction between amino group (-NH_2) of acrylamide molecule nitro group (-NO_2) of TNT.

Scatchard分析结果表明，在TNT印记聚合物微球中存在两类结合位点，这表明在聚合反应之前，TNT与功能单体丙烯酰胺分子之间存在两种不同类型的作用力而自组装成两类的模板分子-功能单体复合物，一类可能是由于富电子的丙烯酰胺和缺电子的TNT的苯环通过p-π配键而形成的电荷转移复合物，另一类可能是由于丙烯酰胺的胺基与TNT的硝基之间的氢键作用而形成的复合物。

Each of them exhibited sensitive reduction responses of nitryls. It was found that the reduction peak of nitryl of the position 4-nitrate group of 2,4-dinitrophenol showed great difference from that of the position 5-nitrate group of 2,5-dinitrophenol. The difference between the two reduction potentials was as large as 180 mV.

在pH=5.0、0.1mol/LNaAc-HAc缓冲体系中，2，4-二硝基苯酚和2，5-二硝基苯酚在碳纳米管修饰电极上出现灵敏的硝基还原峰，其中2，4-二硝基苯酚分子中四位硝基的还原峰和2，5-二硝基苯酚分子中五位硝基的还原峰显示出明显差异，二者峰电位差达180mV。

The four fluorescence peaks are generated separately by the combined actions of the methyl parathion and the acetone. In methyl parathion molecule, there are the transition of n electrons in nitryl, the transition of π electronic structure formed by the oxygen atom and the benzene ring and the transition of n electrons in P=O group. In acetone molecule, there is the transition of n electrons in C=O group.

分析得到，四处荧光峰分别是溶剂丙酮分子中C=O上的n电子跃迁、硝基上的n电子跃迁、甲基对硫磷分子中氧原子与苯环形成的大共轭π电子结构跃迁以及P=S上的n电子跃迁共同作用产生。

Protein protein interactions play vital roles in numerous biological processes. These interactions often result in formation of insoluble and noncrystalline protein assemblies.

在这个研究中，杨俊和特拉华大学的同事Tatyana Polenova设计了一组新脉冲序列，他们用这组脉冲序列研究了用不同同位素标记的thioredoxin蛋白质组装体的分子内和分子间的界面。

They are often morphologically distinct from A chromosomes, being smallerand more highly heterochromatic in most cases. B chromosomes do not pair with Achromosomes, and they are inherited in a non-Mendelian way, exhibiting meiotic andmitotic instability and nondisjunction. However, B chromosome DNA is quiteidentical to the corresponding sequence on the A chromosome complement. So far afew B chromosome specific DNA sequence have been identified. Specific DNAsequences on B chromosome have been the attractive research area on Bchromosomes.

现已在千余种植物和近三百种动物中被发现。B染色体与物种中正常染色体不同：独立于整倍体基因组之外，减数分裂时不与A染色体发生联会和配对，细胞分裂后期不分离，非孟德尔遗传，富含异染色质，不含对宿主主要性状有影响的基因等。B染色体DNA的分子组成既与A染色体极为相似，具有A染色体DNA分子组成的一般特征：富含重复序列和转座成分，染色体三大功能组件DNA高度同源；又与之相区别，含有B染色体特异的DNA序列，这些DNA序列可以为探讨B染色体的起源和进化提供有价值的信息。

Methane, oxygen and H_2O molecules are activated, ionized and dissociated into active particles such as CH_3~+, O~-, H_2O~+, CH_3, CH_2, CH, H,OH and O, by nonelastic collision with high energy electrons. The particles react with each other in the reactor to synthesize chemically products including gaseous oxy-hydrocarbons.We study the rule of reaction by changing electrical parameter, gas flow etc. Study the conversion of methane, selectivity of gaseous hydrocarbons and yield of methanol under different reaction condition.

针对常规甲烷催化转化和氧化偶联制备含氧化合物的问题，遵循国际化学科学研究前沿"绿色化学"原则，采用自然界存在丰富的CH_4、H_2O和O_2为原料，在绿色友好的常温大气压无任何催化剂的条件下，采用强电场电离放电加速电子及其激励气体分子的极端物理手段，在反应腔体内进行无任何环境污染的非平衡等离子体化学反应，将气体分子激发、电离、离解成CH_4~+、CH_3~+、CH_4~·、H_2O~+、H_2O~·、O_2~+、O(~1D)等活性粒子，生成气态烃及含氧碳氢化合物，整个反应过程实现零污染、零副产品。

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。