生物化学

To investigate the relationships between the tolerance difference to high temperature stress and superoxide dismutases in different cultivars of Celosia cristata, ten-leaf stage seedlings of the heat-tolerant cultivar, Century Green and the heat-sensitive cultivar, Century copper were pulsed for 48 h with diethyldithiocarbamate pretreatment and subjected to high temperature stress under controlled conditions of relative humidity of 75%~90%, 12 h/24 h photoperiod with 1 500 lx and 45 ℃, to research the changes of external morphology and interior physiology.

李永红；魏玉香深圳职业技术学院应用化学与生物技术学院，深圳 518055摘要为研究鸡冠花品种间耐热差异与超氧化物歧化酶之间的关联，选用鸡冠花耐热品种世纪绿叶和热敏品种世纪铜叶的10叶期幼苗为试材，用二乙基二硫代氨基甲酸钠进行48 h预处理之后，在45 ℃、相对湿度75%~90%，、光照1 500 1x (12 h/d)条件下进行热胁迫处理，研究其形态和生理生化的变化。

It comprises Physics ,Chemis -try ,BioLogy , astronomy and so on.

它的 内容涵盖了物理、化学、生物、天文学等领域。

Institute of Physical Chemistry,College of Chemistry and Molecular Engineering ,State Key Laboratory for Structural Chemistry of Unstable ＆ Stable Species,Pek ing University,Beijing 100871;Department of Biophysics,The School of Basic Medical Sciences,Peking University,Beijing 100083;Institute of Organic Chemis try,Chinese Academy of Sciences,Shanghai 200032

高峰；沙印林；邱阳；王跃丰；李银玲；来鲁华；吴厚铭北京大学物理化学研究所，化学与分子工程学院分子动态与稳态国家重点实验室，北京 100871；北京大学基础医学院，生物物理系，北京 100083；中国科学院上海有机化学研究所，上海 200032

So in order to deal with the problem, both the living habit and distribution of Chironomus larva in the water treatment system and the methods in removing Chironomus larva at present were introduced in this article. Meanwhile, the relationship between its physiological characteristic and environmental factors was demonstrated. Also the research status、advantage and limitation of different methods in the remove of Chironomus larva were analyzed systematically and some scientific tendencies were prospected. It was suggested that enhancing the management to the raw water and optimizing the drinking water treatment processes were the feasible ways to effectively control the pollution.

本文首先介绍了摇蚊幼虫的生活习性及其在水处理工艺中的分布规律，然后对其生理特性与环境因子之间的关系进行了论述；并就近年来采用物理法、化学法和生物法防治水处理工艺中摇蚊幼虫污染的研究进展、现状和局限性进行了较为系统的分析，展望了摇蚊幼虫污染防治技术的研究前景，指出目前控制饮用水中摇蚊幼虫污染必须将水源水质水控制、污染治理与净水工艺处理结合起来，优化水处理工艺和强化水源水体保护是根本保障。

The soybean-protein fiber was developed by Li-Guanqi who is the member of the HuaKang group that is united with chemistry bioengineering in Pu Yang, HeNan province. The producer stuff of the soybean-protein fiber primarily contains beans dregs, hydroxyl and cyanic acid high polymer. Its production principle: First, soaking beans dregs into water and purifying out soybean-protein from the solution.

大豆蛋白改性纤维是由河南省濮阳华康化学生物工程联合集团公司李官奇等研制并生产的一种新型纺织纤维，它的主要生产原料是豆粕、羟基和氰基高聚物，其生产原理是将豆粕水浸分离提纯出蛋白质，将蛋白质改变空间结构并在适当的条件下与羟基和氰基高聚物共聚接枝，通湿法纺丝生成。

Methods Immunohistochemical streptavidin-peroxidase method was used to detect the expression of MMP-2, MMP-9, TIMP-1, TIMP-2 in 20 cases of normal human cytotrophoblast cells,15 cases of partial hydatidiform moles, 55 cases of complete hydatidiform moles, 15 cases of invasive moles and 8 cases of choriocarcinoma.

应用链霉菌抗生物素蛋白-过氧化物酶免疫组织化学方法对20例正常早孕(2周)绒毛组织、15例部分性葡萄胎、55例完全性葡萄胎、15例侵蚀性葡萄胎、8例绒毛膜癌组织中MMP-2、MMP-9、TIMP-1、TIMP-2进行检测。

Currently, the main means of pre -desilicification for bauxite involve chemical methods, biological ways and physical methods.

目前铝土矿预脱硅的主要方法有化学方法、生物方法和物理方法。

There are 23 species and 3 varieties Orobanche plants in China,most of which are distributed over north,northwest and northeast.The compounds of Orobanche were reported at phenylethanoid glycosides such as acteoside and isoacteoside,and acteoside has significantly protective againstα-galactose induced hepatic injury,which is better than Biphenyl dicarboxylate.

第一部分紫花列当化学成分及生物活性研究紫花列当Orobanche coerulescens Steph为列当科列当属二年生或多年生寄生草本植物，性温、味甘，生长于沙丘、干草原、砾石沙地和戈壁之中，寄生在菊科蒿属植物的根上，具有补肾、强筋之功效，用于肾虚、腰膝冷痛、阳痿遗精和神经官能症等疾病的治疗。

The soil infiltration system for sewage treatment consists of septic tank and soil infiltration system and has the advantages of single equipment,less investemt,convenient operation and management,low energy consumption and better purifying effect,being specially suitable for the region where sewage pipeline is incomplete and domestic sewage discharges dispersively.

现代传统广泛应用的污水处理系统是污水处理厂，在一个复杂和大量耗能的机械设备内通过物理、化学和生物的过程对污水进行处理。然而，这种处理系统不仅耗资巨大而且在消耗大量化石燃料的同时，还会产生新的固体废物和污泥[1]。

A type of chiral molecular tweezers has been designed and synthesized by using diphenic acid as spacer and chiral unsymmetrically disubstituted urea as arm for the first time.

近年来，利用合成的人工受体与适当底物间的分子识别以建立仿生仿酶模型的研究，已成为生物有机化学和超分子化学前沿领域之一lL】。2 J。

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。