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    An original strain, Rhodotorula sp. CIBAS A 1401 was isolated from nature sources in southwestern of China.
    红酵母菌株(Rhodotorula sp.) CIBAS A 1401是一株分离自我国西南天然源的具有生物技术用途的高活性苯丙氨酸解氨酶(PAL)菌种.
    NATURE SOURCE ELECTROMAGNETIC SOUNDING
    天然电磁场测深
    In the marine environment (low signal-noise ratio), the paper has carried out the propagating theoretical study of nature source in marine horizontal strata earth, numerically calculated effects of seawater on nature source and EM responses in depth and conduction contrast. The results indicate (1) the effect of seawater on electric and magnetic field is different, stronger on magnetic field and weaker on electric field;
    在海洋环境下(低信噪比环境),研究了水平层状介质下海底大地电磁场的传播理论,数值模拟了海水对大地电磁场的影响,计算了不同海水深度、不同电导率对比度的海底大地电磁的响应,研究结果表明:(1) 海水对大地电场和磁场的影响程度不同的,对磁场的影响大,对电场的影响小;
    Characteristics of marine nature source by real data show in fellow: (1) marine nature source is affected not only by high conduction seawater but also by seawater moving(noisy frequency of this measurement: 0.084hz, 0.75hz,
    通过实测数据研究了海底大地电磁场具有如下的特征:(1)在海底大地电磁场不仅要受到高导海水影响,还要受到海水运动的干扰(本次观测受到的周期噪声干扰频率为:0.O84Hz,0.75Hz, 1.4Hz);
    Water is one of the most precious nature sources.
    水是最为宝贵的自然资源之一。
    They agreed on that technology progress 、human source 、nature source and the structure of capital all are the key reason of the growth of economics.
    他们大都形成以下共识,在经济增长因素分析中,技术进步、人力资源,自然资源,资本构成都对经济增长有很大的贡献。
    It is difficult to achieve amount of antimicrobial peptides from nature sources. The object of this study is to construct the expression vector of rat beta-defensin-2 gene and study the expression of the recombinant expression in E.
    研究目的利用基因工程技术,构建大鼠p一防御素一2原核表达质粒pET32一rBDZ,研究重组子在大肠杆菌BL21(DE3)中的表达,为进一步大规模生产D一防御素一2多肤、及p一防御素一2多肤的生物学活性等的研究奠定实验基础。
    Cotton is one of the most important nature sources of fiber and oil.
    棉花是一种重要的纤维作物和油料作物,棉纤维是已知纤维素纯度最高的天然资源。
    However, the low quality and limited colour hinder the development of the nature source.
    但彩色棉花一直存在着纤维短、强度差、色谱狭窄及遗传性状不稳定等诸多问题使彩棉的发展滞缓。
    Recently, with the appearance of organic waste and the improvement of people's environmental consciousness, more and more people are interesting in the nature source and chemistry of all kinds of hazardous organic wastes and the harm approach to mankind.
    近年来,由于有机污染物的大量出现以及人们环保意识的提高,各类有机污染毒物性质以及其对人体造成的危害越来越受到人们的关注。
    Taxol is a new kind of anti-cancer medicine having assured curative effect,but its nature source——Taxus are very exiguous and close to deracinate.
    紫杉醇是疗效确切的抗癌新药,但其天然来源——红豆杉物种稀少,濒临灭绝。
    Three model phenolic compounds,a known anticarcinogen BHA,a nature source of phenolic compound tea and a synthetic chemical cinnamic acid,have been used to treat male SD rats for studying the inhibitory mechanism at initiation stage of AFB1 which could induce hepatoma. The quantity of AFB1-DNA adduct in liver,glutathion S-transferase(GST) activity in hepatic cytosois and cytochrome P-450 activity of hepatic microsomal enzyme system were measured as indicators.
    分别用三种有代表性的酚类化合物即己知抑癌物BHA、茶叶(云南沱茶)和人工合成的桂皮酸处理雄性SD大鼠,通过测定肝内AFB1-DNA加成物含量、GST和P-450水平的变化,探讨在AFB1诱发大鼠肝癌的启动环节,起抑癌作用的机理。
    AbstractTGF-β presents widely in most normal tissues andtransformed cells,It is known that blood platelet is thebest nature source for TGF-β.
    TGF-β广泛存在于多种正常组织细胞及转化细胞中,不同种属间高度同源。
    The theory of nature source electromagnetic sounding technique and its applications are presented in this paper.
    本文系作者十余年来研究该一新的物探方法的理论总结与实测成果介绍。
    Because the relative coefficient (r) between the agents from nature source, such as ADM, MMC and VCR, were larger (r=0 5539~0 7208) at either 1 PPC or 5 PPC, it is shown that some of hepatomas were multidrug resistant.
    结论 结果提示 MMC对肝癌抑制作用较强 ,DDP和 TSPA剂量增加与疗效提高可能有较大的关系。 天然来源的药物 ADM、MMC和 VCR之间 ,无论在 1PPC或 5 PPC水平 ,其相关系数均较大 (r=0 .5 5 39~0 .72 0 8) ,表明部分肝癌具有多药耐药性
    T he variations of the speciation in Co re MS can be divided into two periods:the extractable forms of the elements have stable concentrations between 13and 4cm,which indicates the nature sources of the heavy metals;
    沉积岩芯重金属元素形态垂向变化规律及次生相富集系数表明,Cu、Mn、Ni、Pb和Zn在沉积岩芯13~4cm有效结合态含量较稳定,为自然沉积;
    The analytical results testified that grain size of aerolion dust can be divided into different two group of grain size, namely, partculate from industrical pollution are most smaller than 10 μ ms and the bigger grain are mainly from nature source of sandy dust.
    结果证明,降尘可以分为大小明显的两群,小于10μm的颗粒物以工业污染的产物为主,较大颗粒主要为自然源沙尘。
    This paper reviews the role and bioactive mechanism of HS in pathological processes of breast cancer as well as research progresses in the classification,anticancer activity and structure-activity relationships of HS polysaccharides analogs isolated from nature sources and chemosynthesis.
    现综述HS结构及在乳腺癌发生发展中的作用和机制、HS多糖类似物的分类、天然产物中提取的多糖和化学修饰的多糖衍生物的抗癌活性及构效关系的研究进展。
 

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