化学

"The interaction of tobacco, and especially nicotine, with brain chemistry is a fascinating area that we're just beginning to understand, especially when it comes to correlating neurochemistry with behavior," said study leader Jon-Kar Zubieta, a psychiatrist and neuroscientist at the university.

该大学的精神病学家和科学家，也是研究的领导人Jon-Kar Zubieta说：烟草的交互作用，特别是尼古丁，和脑部的化学物质是一块吸引人的领域，我们刚刚开始了解其中的奥妙，特别是到神经化学和行为相关联这块。

It is intended to provide a forum for the many disciplines involved such as neurology, neurosurgery, neurophysiology, neuropharmacology, neurochemistry, neuroanatomy, neuropathology, neuroendocrinology, neurotoxicology, neurogenetics, neuroimaging, neuropsychology, neuropsychiatry, molecular neurobiology, clinical chemistry and paediatrics.

该期刊打算为以下涉及到的学科提供一个论坛，这些学科包括：神经病学、神经外科学、神经生理学、神经药理学、神经化学、神经解剖学、神经病理学、神经内分泌学、神经毒理学、神经遗传学、神经心理学、神经精神病学、分子神经生物学、临床化学和儿科学等。

Nitrogenous heterocyclic compounds, which has a good deal of chemical reactions and chemical structures, are very important in the field of application, medicine, biology, medicine, pesticides, and other fields.

含氮杂环是一类具有重要应用价值和良好生物活性的化合物，它们不仅具有丰富的反应化学和结构化学，并且在生物、医药、农药等领域具有重要的应用价值。

Using laser induced chemical deposition methods,a local micro - region quick chemical deposition of copper on a nonconductor epoxy resin substrate has been realized.

用激光诱导化学沉积方法在非导体环氧树脂基体上实现微区局部、快速化学沉铜，并用卢瑟福背散射和扫描电镜方法对镀层的形貌、性质进行了观测和分析。

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。

Communication A Single Antibody Catalyzes Multiple Chemical Transformations upon Replacement of the Functionalized Small Nonprotein Components Abstract A single antibody catalyzes multiple chemical transformations upon replacement of the funcctionalized small nonportein components.

通信 阿单抗体催化多种化学物质变换的功能化后，小非蛋白成分替换摘要单一催化抗体后，小nonportein的funcctionalized更换元件多种化学物质转变。

Methods: The expression of VEGF by immunohistochemical staining was examined in 61 cases of the esophageal carcinomas and 13 cases of normal esophageal mucosas. Microvessel density in the cases was determined by FactorⅧ immunohistochemical staining.

应用免疫组织化学方法检测61例食管癌组织及13例正常食管粘膜组织的VEGF表达，并对血管进行Ⅷ因子相关抗原的免疫组织化学染色，计数微血管密度。

The recent progresses in the study on the fluorescence of rare earth complexes and application for the determination of the rare earth elements and organic compounds, as fluorescent probes for bioactive materials analysis and as detection means in separation technology were reviewed in detail. In chapter two, the absorption spectra of the 4f electron transitions of the complexes of the neodymium, praseodymium, holmium and erbium with fleroxacin in the presence of CPC have been studies by normal and derivative spectrophotometry.

本文以稀土元素配位化学为基础，以导数吸收光谱技术和荧光光谱技术为研究手段，利用新一代喹诺酮类抗菌药物，抗凝血类杀鼠药物的化学结构特点和大环化合物冠醚与金属离子突出的配位能力，以分析应用为目标，系统研究了这些化合物同稀土元素形成的配合物的光吸收和荧光特性，通过对体系实验条件的优化，使体系的稳定性、选择性和灵敏度得到显著改善。

The question is based on our perception of the "particulate" nature of matter and the ensuing concept of "numerosity".

问题是基于我们的物质"微粒"特性观念和其紧密相连"数值"概念，阿伏伽德罗常数作为物质数量单位基础的确立将非常有用于国际标准单位制，不仅简化了建立化学量测量结果向国际标准单位制的溯源(即物质量国际标准单位制的确立)，而且还能建立微生物和尽可能多的其他生物化学测量结果向国际标准单位制的溯源

Smell is tougher to implant than colour because it not only matters whether a plant can make odoriferous chemicals, it also matters what it does with them.

在花中加入香味要比加入颜色难，因为前者涉及植物能否合成有味化学物质以及如何处理这些化学物质。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。