查询词典 biological chemistry

According to the results of quantum chemistry calculation and the present research status in the relationship between the structures and the functions of DT, the El 54 in DT catalyzing domain was mutated to aspartic acid and arginine in order to study the effects of the alteration on the biological activities.

在量子化学计算的基础上，结合目前关于白喉毒素结构与功能的研究状况，选择把白喉毒素催化区的第154位谷氨酸分别突变为天冬氨酸和精氨酸，研究此处电荷性质的改变对生物活性的影响。

With the development of life science and biological engineering, chiral separation and recognition have been payed close attention universally ,which have important significance in organic chemis- try, life science and medicinal chemistry.

随着生命科学和生物工程的发展，手性拆分和手性识别引起了人们的普遍关注，研究对映体拆分与识别对有机化学、生命科学和医药工业均具有十分重要的意义。

By analyzing the shortage of the analytical chemistry experiment education of the profession of exploitating biological resources , and reference to the didactical experience of this course, this article discusses many parts of teaching of the course adequately such as the request、and the content and didactical method,and so on.

通过分析当前生物资源开发专业分析化学实验教学中存在的问题，结合生物资源开发专业的分析化学实验的教学经验，从实验的要求、内容及教学方法等方面对生物资源开发专业的分析化学实验教学进行了深入的探讨。

Study on electroanalytical chemistry of small biological molecules.Ⅱ.

生物小分子的电分析化学研究Ⅱ。

Recent study proved that the thickness, microstructure, chemistry composition of oxide film can affected the biological corrosion-resistance ability, hydrophile property and bioactive macro molecule absorption, then affected the biocompatibility and the match process in the body.

目前的研究认为钛表面氧化膜的厚度、微观结构、化学成分及TiO_2的结构类型等，与材料的耐腐蚀性、表面亲水性和生物大分子的选择性吸附有着直接的关系，进而影响到钛的生物相容性以及在体内的愈合过程。

With the help of the rich and varied supramolecule, organic substances, inorganic substance, polymer and biological substance and so on, it can make various design of modifying layers on the surface of electrode. It includes multivariate, multilayers, polycomponent, micronize, etc. That will make the detection more sensitive and more widely applied in analytic chemistry.

化学修饰电极可利用丰富多彩的超分子、有机物、无机物、聚合物和生物物质等，在电极表面进行各式各样的修饰层设计，包括多元、多层、多组份、微型化等，已期达到高选择和高灵敏的检测，使化学修饰电极在分析化学中得到广泛应用。

Through seawater pCO_2 time series observations along with the surface water chemistry, we observed significant diurnal changes of surface pCO_2 ranging from -10μatm in the oligotrophic SCS, 50-150 uatm in Xiamen Bay and Shenhu Bay, up to as high as 600μatm in the coral reef system at Xisha Islands. Processes that modulate the pCO_2 diurnal variations are significantly different between sites, which can be grouped into three categories: temperature control, tide / current control and biological control.

我们的实验结果表明，所有观测区域均表现出显著的pCO_2周日变化，变化幅度从-10μatm到600μatm不等，其中，南海北部寡营养盐开阔海域的pCO_2变化幅度约为10μatm，以厦门湾、深沪湾为代表的海湾河口区域的pCO_2变化幅度为50-150μatm，而西沙群岛珊瑚礁生态系统的pCO_2的周日变化幅度高达600μatm以上。

The nutrient value of Pholiota adiposa mycelia cultivated at 25℃, pH=6.0 and cultivated for 4d was higher. The amino acids score, chemistry score, essential amino acids index, biological value, Nutritional index and score of ratio coefficient of amino acid of its protein were 91.0, 70.6, 88.36, 84.61, 40.34 and 78.75 respectively.

本文测定了不同培养时间和PH值的黄伞菌丝蛋白质的含量及其氨基酸组成，并采用国际上通用的评价方法对不同培养条件的黄伞菌丝蛋白质营养价值进行了全面的评价，为黄伞资源的开发利用和科学研究提供可靠的理论依据。

Transition metal Pyrazolyl ligands have attracted considerable attention as in catalysis, magnetic coupling, biological mimicry, electron transfer, optic-physics area because of pyrazolyl ligands have luxuriant self-assembly chemistry and as a kind of multifunctional organic ligand.

吡唑类配体是一种较复杂的多功能有机配体，有着丰富的自组装化学，使其形成的过渡金属配合物在催化、生物仿生、磁学耦合、电子转移和光物理性质等方面具有潜在的应用价值，近年来受到广泛的关注。

PH, dissolved oxygen and chemical indexes for instance total nitrogens, total phosphorus, chemistry oxygen depletion; appraised phytoplankton species complexity; numerated phytoplankton cell density; analyzed various kinds of biological diversities.

主要测定了水温、透明度、pH、溶解氧等物理指标；总氮、总磷、化学耗氧量等化学指标；同时对浮游植物的种类组成、细胞密度和生物多样性指标进行了鉴定、记数和分析。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。