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The trials were carried out in field experiment and artificial climate incubator. The sugar beet growth buds were treated at 1～3pairs of true leaves with gibberellin , autix , naphthaleneacetic acid and kinetin , and the plant growth regulating substances enhancing bolting of sugar beet in the first year and its doses were selected out. The sugar beet seedling induced by temperature and light were treated by abscisic acid , maleic hydrazide , uniconazole (S-3307) and paclobutrazol (PP333), and the plant growth regulating substances which make bolting reverse and their doses were screen out. The mechanisms of bolting and bolting reversing were discussed by examining the changes of endogenous hormones, activities of correlative enzyme to bolting, soluble protein, components of amino acid in the protein, components of fatty acid. The results were as follow

本研究通过田间试验和人工气候箱培养相结合的方法，在甜菜幼苗1~3对真叶时利用赤霉素、生长素、奈乙酸和激动素等生长调节物质处理茎生长点，筛选促进甜菜当年抽苔的植物生长物质及剂量；同时利用脱落酸、马来酰肼、烯效唑（S-3307）和多效唑（PP333）等处理经温光诱导当年抽苔的甜菜幼苗，筛选对当年抽苔逆转有效的种类和剂量，并通过测定内源激素含量、相关酶活性、可溶性蛋白质含量和氨基酸组分及脂肪酸含量及其组分的变化，探讨甜菜当年抽苔和抽苔逆转的机理，得到如下结论

Abrupt withdrawal: Withdrawal resulting in rebound hypertension, tachycardia, and hypertonia may occur upon discontinuation; doses should be decreased slowly, particularly in patients receiving high doses for prolonged periods.

突然戒断：戒断会引起反跳性高血压、心动过速，也有可能发生张力亢进；应该逐渐减量，特别是长期高剂量服用的患者。

Methods:Preparing pastille serum of Rehmanniae pill of Six Ingredients with low,medium and high doses and using 10% pastille serum with different doses to cultivate OS-732 cells.

制备低、中、高剂量的六味地黄丸含药血清。10%低、中、高剂量的六味地黄丸含药血清培养OS-732细胞，显微镜下观察细胞生长情况；进行细胞计数和绘制生长曲线；用MTT法检测细胞增殖；进行细胞碱性磷酸酶活性测定。

There is no evidence that low doses (1 mg/kg) of alpha-methylscopolamine alter central effects of pilocarpine, but higher doses i.e., 10 mg/kg in mice and 20 mg/kg in rats, s.c.

没有证据表明，低剂量的(1 mg/kg)α-甲基东良菪碱改变匹罗卡品的中枢效应，但是高剂量i.e。， 10 mg/kg in mice and 20 mg/kg in rats， s.c。

In order to investigate the effect of IFN-γon the expression of TNF-αin the hypothala- mus-pituitary-ovary axisof RU486-induced aborted SD rats, RU486 was used to establish the abortion model, then the aborted rats were administrated with different doses of IFN-γintraperitoneal injection, the method of immunohistochemical ultrasensitive SP was us- ed to study the variation of positive TNF-αcells in hypothalamus, pituitary, ovary and uterus in normal pregnant group A, aborted model group B and three different doses of IFN-γgroup C,D,E. The main goal of this research was to study whether the low dose of IFN-γcould have a protective function to pregnancy and the mechanism of its function so as to provide morph- ologic basis for the scientific using of IFN-γin the process of animal abortion control.

为探讨IFN-γ对流产大鼠下丘脑-垂体-卵巢轴(hypothalamus-pituitary- ovary-axis，HPOA )TNF-α表达的影响，本试验用米非司酮(RU486)建立SD大鼠流产模型，通过腹腔注射不同剂量IFN-γ，采用超敏感免疫组织化学SP法(链霉素抗生物素—过氧化物酶法)，观察了孕13天(d13)SD大鼠正常妊娠A组、流产模型B组、不同剂量IFN-γC、D、E组下丘脑、垂体、卵巢、子宫TNF-α的表达变化，探讨低剂量IFN-γ对妊娠是否有保护作用及其作用机制，期望能为在妊娠过程中如何科学应用IFN-γ防止动物流产提供形态学依据。

Studies on the pharmacokinetics of the racemate SFZ-47 was administered orally at doses of 4, 8 and 16 mg/kg and intravenously at doses of 2, 4 and 8 mg/kg to Beagle dogs, respectively.

外消旋体的药物动力学研究将SFZ-47分别按三种剂量以口服（4，8和16mg／kg）和静脉注射（2，4和8mg／kg）的方式对Beagle犬给药。

Results The personal doses range of radiotherapentic operaturs is 0.26-6.54 mSv/a, average 2.27 mSv/a. The personal doses range of radiodiagnosis operators is 0.12-3.24 mSv/a, average is 1.35mSv/a.

结果 放射线治疗工作人员个人剂量范围为0.26～6.54mSv/a，平均为2.27mSv/a；放射诊断工作人员个人剂量范围为0.12～3.24mSv/a，平均为1.35mSv/a。

Experimental mice were exposed to Trypanosome evansi after injection by different doses of antigenic reservoir. The results showed that 20 μg dose produced 83% and 67% protection to 2 sample variations after 4 immunizations. However, 3 immunizing doses could not give good protection. No protective effects were detected when experimental animals immunized by single VSG exposed to isotype from different rabbits.

用不同剂量抗原库免疫小鼠后进行攻虫，结果显示：经四次免疫后，20μg 剂量对随机抽取的两个变异体100 条虫体的保护率分别达到 83%和 67%；改变免疫方法，经三次免疫后的保护效果不理想；用单一 VSG 抗原免疫小鼠，接种来自不同兔体的同型虫体，不能起到相应保护作用。

Results The UV-B treatment caused the declines of chlorophyll content, soluble protein content and water content of leaves, besides, dose-effect was existed. The decline of 30 μW/cm^2 treatment was bigger than that of 15 μW/cm^2 treatment. The influences of UV-B radiation on carotenoid content and anthocyanidin content were similar; the change trends were declined firstly then increased. The UV-B treatment with two doses restrained the electron transport of PSⅡ, particularly; the inhibitory effect was biggest after treated 2h, and then this effect was declined in 4, 6 and 8 h, so the dose-effect was existed. The UV-B radiation with two doses restricted photosynthetic rate and the inhibitory effect increased with the increase of treatment time. The high dose treatment caused huge damage to membrane system, while the result of low dose treatment was not obvious.

结果］UV-B处理导致叶绿素、可溶性蛋白含量以及含水量都降低，且存在剂量效应，30μW/平方公分处理的降幅大于15μW/平方公分；UV-B辐射处理对类胡萝卜素含量的影响与花青素相同，均表现为先下降后上升的趋势，2种剂量间差异不大；2种剂量的UV-B处理均抑制了PSⅡ的电子传递，尤其是处理2 h的抑制作用最大，4、6和8 h的抑制作用有所缓解，且存在剂量效应；2种剂量的UV-B辐射均抑制了叶片的光合速率，随着照射时间的延长抑制效应加大；高剂量UV-B处理对膜系统的损伤较大，低剂量UV-B处理结果不明显。

R. ChinaAbstract:Objective To study antiradiation and antifatigue effects of a soft capsule mainly composed of cistanche,acanthopanax senticosus and jujube. Methods The mice were divided into four groups and then orally given soft capsule at doses of 0 .0g/kg.bw, 0.18g/kg.bw, 0.36g/kg.bw, 1.08g/kg.bw for a successive period of 30 days.The burden-swimming time , hepatic glycogen, serum urea nitrogen, lactic dehydrogenase of mice were observed. The mice were divided into four groups and then was orally given soft capsule at doses of 0 .0g/kg.bw, 0.18g/kg.bw, 0.36g/kg.bw, 1.08g/kg.bw for a succession of 21 days.

设立3个实验组，每天分别以0.18、0.36和1.08g/kg·bw剂量的软胶囊给小鼠灌胃一次，同时设立空白对照组，连续灌胃30d后，测定小鼠的负重游泳时间、肝糖原含量、运动后血清尿素水平、血乳酸曲线下面积等指标，以测定其抗疲劳作用；每天以上述剂量给小鼠灌胃，同时设立一个辐射对照组，连续灌胃21d后，不同指标选择不同的照射剂量，各组均以同一剂量γ射线全身照射一次，照射后继续给予样品。

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。