查询词典 free radical

The research of mechanism shows that the pathway of hydrocarbons oxidation performed with vanadium picolinic complexes as catalyst involves typical free radical chain mechanism.

对催化氧化反应机理的研究结果表明，本反应体系在钒氧吡啶酸络合物作用下，烃类的氧化反应按照自由基链反应机理进行，非均相催化剂遵循与均相催化剂相似的反应机理。

And the ability of antioxidant of polyhydroxy benzamides don't have too many differences with Trolox (IC50 =13.90 μg/ml), the substition of hydroxy group at amino benzene ring doesn't affect the whole ability of antioxidant apparently, but while the single hydroxy group at carboxylic acid benzene ring, they are apparently decrease to scavenge the ability of free radical, as a result, the hydroxy at amino benzene ring substitutes its function, without the hydroxy group, the ability of antioxidant is worst, but it upgrades its function while the hydroxy and amino are in the ortho-position or para-position.

而当多酚醯胺化合物其抗氧化能力与Trolox差不多时(IC50 =13.90 μg/ml)，胺基苯环上之羟基取代对整体抗氧化能力影响不明显，但在羧酸苯环上具单羟基时，其清除自由基能力明显下降，使得胺基苯环上羟基取代发挥了影响力，无羟基取代时，抗氧化能力最差，而羟基与胺基互为邻位或是对位时较间位有提升效果。

Content : The definition and classification of functional food;The development and management of functional food;The functional compositions of food eg., polysaccharose、functional sweetner、functional lipid、free radical scavenger、probiosis、conditional essential amino acid、active peptide and protein etc.;The evaluation of functional food.

课程内容：功能食品的定义和分类；功能食品的发展和管理状况；食品的功效成分如：多糖、功能性甜味剂、功能性油脂、自由基清除剂、益生菌、条件性必需氨基酸、活性肽和蛋白质等；功能食品的功效评价。

The percutaneous pulsive current stimulation of hepatic region in exercise-induced fatigue rats may improve the activity of antioxidant enzymes in liver, promote free radical-scavenging and hepatic glycogen synthesis, delay the occurrence of exercise-induced fatigue, and promote the recovery from exercise-induced fatigue.

脉冲电流经皮刺激运动疲劳大鼠肝区可提高肝脏抗氧化酶的活性，促进机体自由基的消除及肝糖原的合成，具有延缓运动疲劳发生、促进运动疲劳恢复的作用。

As a new water treatment method, ultrasound technology is mainly based on high temperature pyrogenation and free radical oxidation contaminant during ultrasound process.

超声技术作为一种新型水处理方法，主要是利用超声过程中的高温热解和自由基氧化污染物。

Consisting of three pathways: free radical oxidation, high temperature pyrogenic decomposition and supercritical water oxidation.

主要有三种途径：自由基氧化、高温热解、超临界水氧化。

The purpose of this research is to discuss the probable mechanism of acupuncture treatment combined with pharmacotherapy regulating glutamatergic function and anti-free radical effect on the dementia rats due to hippocampal CA, lesions induced by quinolinic acid. So that the author can provide the clinical application of acupuncture treatment combined with pharmacotherapy with experimental evidences in treating Alzheimers disease.

本文的研究目的是探讨针药结合对喹啉酸(Quinolinic Acid，QA)损毁海马CA_1区所致痴呆大鼠模型的中枢兴奋性神经递质谷氨酸(glutamate，Glu)和抗氧化指标的影响及其对提高痴呆大鼠学习记忆能力的可能机理，为临床针药结合治疗阿尔茨海默氏病(Alzheimers disease，AD)提供实验依据。

The concentrations or activities of selenium,copper,zinc and MDA or GSH-Px,SOD ,CuZn-SOD and CAT in infested and healthy Rangifer tarandus sera were detected respectively in order to explore relationship between C.trompe infestation and metabolism of oxygen free radical. Results were as follows.

为探讨驯鹿狂蝇蛆病与机体氧自由基代谢的关系，分别对感染驯鹿和健康驯鹿血清中的微量元素硒、锌、铜、谷胱甘肽过氧化物酶、超氧化物歧化酶、铜锌超氧化物歧化酶、过氧化氢酶和脂质过氧化终末产物丙二醛的含量进行了测定。

Methodsthe scaverging capacity on hydroxyl free radical of different concentration water-solubility components from rosmarinus officinalis l.

目的研究迷迭香水溶性成分清除·oh自由基的活性。

AIM: To investigate the inhibition capacities of carnosol, rosmanol, and epirosmanol, which are phenolic diterpenes from Rosmarinus officinalis, to oxidized low-density lipoprotein formation in human blood and detect their scavenging activities to lipid free radical and superoxide anion in vitro.

目的：研究迷迭香中二萜酚化合物鼠尾草酚、迷迭香酚和表迷迭香酚对人低密度脂蛋白氧化的抑制作用及其对自由基和超氧阴离子的清除作用。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。