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We also discovered that selenium can decrease hematolysis and effects function of vacuole toxin of HP. morphological conversion from spiralto coccoid forms occurredwhen HP was caltured with selenium and most of coccoid forms had fragmentary flagella and pilus; the effection of selenium to activity of urease, catalase, alkaline phosphatase is not exist or not evidence; selenium enable pET32a-vacA-E. coli BL21 which can express VacA produce yellow lipochrome, and the color become deeper with increasing of concentration of selenium; selenium can decrease expression of recombined VacA by restrain the growth of pET32a-vacA-E. coli, but can not influence activity and gene equence of VacA; selenium can enhance the suppression effect of recombined VacA for gastric cancer cell, depress the index of cell multiplication and the forming rate of colony, decrease the number of cell in S period, increase total of cell in G period; After purified, the recombined VacA can be identified by VacA antibody.

结果：体外实验结果表明：一定浓度的硒作用HP后，HP菌落数量随着硒浓度的增加而减少，菌落颜色由灰白色变为砖红色，溶血现象随硒浓度的增加和作用时间的延长而逐渐消失，HP的形态由弯曲形变为球形或椭圆形，鞭毛及菌毛出现脱落现象；硒对尿素酶、过氧化氢酶、碱性磷酸酶活性无影响或影响不明显；一定浓度的硒能使表达VacA的pET32a-vacA-E.coli BL21工程菌产生脂溶性砖红色色素，颜色随硒浓度增加而加深；一定浓度的硒通过抑制pET32a-vacA-E.coli BL21工程菌的生长，减少重组VacA表达量，但不影响其空泡毒活性及编码基因序列；硒能增强重组VacA对胃癌细胞的抑制作用，使细胞分裂指数和集落形成率降低、S期细胞数量减少，G1期细胞总数增加；纯化后的VacA重组蛋白可被VacA抗体识别，具有良好的抗原性。

The removal of CODcr: During the period of high temperature, when the hydraulic load increases gradually from 4.92 ml/L-d to 39.39 ml/L-d, the water quality of the effluent doesnt changes too much and the removal ratio stabilizes above 70% mostly; During the period of low temperature, the removal ratio of CODo can only reach 40% even if the hydraulic load is as low as 4.92 ml/L-d.

COD_的去除：高温时期，当水力负荷在4.92～39.39ml／L·d的范围内逐渐增加时，出水水质变化不大，去除率基本稳定在70％以上；低温时期，即使采用4.92ml／L·d的低水力负荷进水，COD_的去除率也只能达到40％左右。

Some basic properties of σ- LFSR over F4 are studied, such as nonlinearity, cycle structure distribution of state graph, the largest period and counting problem related. The conclusions are as follows:The coefficient ring of σ-LFSR is isomorphic to the matrix ring over F,. The cycle structure of σ- LFSR is consistent with that of the determinant of the corresponding polynomial matrix if and only if the feedback polynomial of - LFSR does not contain nontrivial factor over F2,. The counting formula of the number of σ- LFSR with inconsistent cycle structure is also showed in that part. The period of σ-LFSR with degree n is maximum if and only if the determinant of the corresponding polynomial matrix is the primitive polynomial with order 2n over F2,.

本文研究了有限域F_4上的σ-LFSR的一些基本性质，如非奇异性、状态图的圈结构的分布、最大圈的充要条件及相关的计数问题等，得到以下结论：σ-LFSR的系数环同构于F_2上的矩阵环；σ-LFSR的状态图的圈结构与对应的多项式矩阵的行列式的圈结构一致的充要条件为σ-LFSR的反馈多项式不含有非平凡的F_2上的因式，给出了圈结构不一致的σ-LFSR的计数公式； n次σ-LFSR周期达到最大，当且仅当对应多项式矩阵的行列式为F_2上的2n次本原多项式。

based on the viewpoint that sciences and human languages are developing collaterally,this paper attempts to point out that the research on sciences in a certain period reflects the evolution of human mind during the same period. such kind of research should be in the scope of human linguistics.

摘 要：文章从科学与语言实际上是并行发展的这一视点出发，以《比亚韦斯托克宣言》的主要观点为依据，试图说明，通过对某一历史时期某些学科的术语发展水平的研究，可以透视出该时期人类思维的进化与发展水平。

Primitive accumulation period of British colonial expansion during this period of colonial expansion, began in the 16th century until the late 18th century in the rise of the industrial revolution.

原始积累时期的殖民扩张英国在这一时期的殖民扩张，始于16世纪迄于18世纪后期工业革命的兴起。

The incubation period for both can last from 7-10 days. The period of communicability is the first 3 weeks of illness.

白喉及百日咳的潜伏期均可持续7-10天，在发病后的3周内具有传染性。

Replacement Product will be new or serviceably used, comparable in function and performance to the original Product and warranted for the remainder of the original Warranty Period or thirty (30) days after it is shipped to Customer, whichever period is longer Any Product found by Synology to be non-defective will be returned to Customer.

已获指定 RMA 号码之任何产品须维持到货当时之状态，原封不动退回 Synology 指定之地址、预付运费、利用足以适当保护相关内容物之方式包装，并在包装箱外明显标示 RMA 号码。与退回产品相关之保险费用或遗失风险，均由客户承担，直到 Synology 收到退货产品为止。已核发 RMA 号码之产品须在核发适当 RMA 号码之后十五(15)天内退回。

The principle of consistency implies that a particular accounting method, once adopted, will not be changed from period to period.

一致性原则的含义是，一旦采用某种会计方法，以后各期就不能改变。

In this particular period in which the Chinese law transformed from traditional to modern type, relying on their legal background and experiences studying in the West, they became the disseminator of legal knowledge, constitutor, interpreter and criticizer of law in the period of the Republic of China, founder of modern legal education and constructor of modern jurisprudential br...

在中国法律由传统向近代转型这一特殊时期，他们以自己的法律知识背景和游学西方的经历，成为近代法律知识的传播者、民国法律的制定者、解释者和批判者，以及近代法律教育的奠基者和近代法学学科的构建者，对中国法制近代化产生了十分深刻的影响。

The thesis first analyzes the market need for particleboard in our country. According to continuity principle, adopting Gompartz curve method-qualitative and quantitative, china's particleboard industry is developing from growth period into maturity period. That is to say, while the market need for particleboard is still rising, the increase of sale rate begins to fall. However, the market demand is still extensive.

论文首先分析了我国刨花板的市场的需求情况，利用联贯性原理，采用既能定性又能定量的Gompartz曲线法，得出我国刨花板正在成长期走向成熟期，即刨花板市场需求量继续上升，而销售量增长率开始下降，市场需求仍然比较广阔。

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。