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From the influnce of pH change in water on the copolymerization, the copolymerization mechanism was provided. The copolymerization mechanism is that there is hydrogen bond, which can enhance the copolymerization, between acrylic acid and crotonaldehyde at low pH and there is"Charge Transfer Complex", which gives the more crotonaldehyde in P (acrylic acid-crotonaldehyde), between acrylic acid and crotonaldehyde at high pH.

根据共聚合反应介质pH值变化对丙烯酸-丁烯醛共聚合反应的影响，提出了丙烯酸-丁烯醛共聚合反应机理，即在低pH值时，丙烯酸、丁烯醛之间可形成氢键，从而使共聚合体系具有较高的聚合反应速率和转化率；在较高pH值时，丙烯酸、丁烯醛之间则有电荷转移络合物形成，从而使共聚物中含有更多的丁烯醛链段。

For the models by MMFI is a nonlinear differential equation with variable coefficients and the 'nonlinearity' brings discommodiousness to analyse the nature and quantification of a control system, it applies brim linearization method to better MMFI. By transforming 'triangle wave' membership functions of the base elements into 'rectangle wave' membership functions, we get three models which represent different aspect respectively. By simulating second order system and analysing the errors of the results, a conclusion is drawn, that is, the model obtained by brim linearization method has a good precision in contrast with the real model.

由于模糊推理建模法得到的模型是变系数非线性微分方程，这种&非线性&对该控制系统的某些定性或定量分析带来不便，因此应用边缘线性化方法对模糊推理建模法进行改进，将基元的隶属函数由&三角波&改成&矩形波&，从而得到了三个模型，这三个模型各有侧重，通过对二阶系统进行仿真，分析仿真结果，从而给出了关于边缘线性化方法的结论，即由边缘线性化方法得到的系统模型对该系统的真实模型有较高的逼近精度。

Taxol have been used in clinic therapy of breast cancer. Generally speaking, taxol can accelerate the-assemble of microtubule, stabilize microtubule from its discomposing, make mitosis stagnate at G2/M, sequentially interdict the normal mitosis and proliferation of cells, induce cell apoptosis; Besides, a direct function of taxol on cell signal and gene expression, activations of apoptosis genes and expression of proteins can induce apoptosis.

紫杉醇已应用于乳腺癌的临床治疗，一般认为紫杉醇能增强微管聚合，稳定微管防止解聚，使有丝分裂停滞在G2/M期，从而阻断正常的有丝分裂和细胞增殖；除此之外，紫杉醇可以直接在细胞信号和基因表达上发挥作用，活化多种凋亡相关基因的表达，从而引发细胞凋亡。

The inner and outer shoulders are slidable within the supporting bearings such that, in a first position, the pinion gear is drivingly engaged with the spool shaft for rewinding the line and, in a second position, the pinion gear is disengaged from the spool shaft, allowing the spool to freely rotate during casting.

该内肩和外肩可在这两个支撑轴承中滑动，从而，在第一位置上，该小齿轮受驱动而与该绕线筒轴啮合以反绕钓鱼线；在第二位置上，该小齿轮与该绕线筒轴脱离，从而抛鱼饵时该绕线筒可自由转动。

It's warning and outcry for mediocrity of human society by the superiority.Under the surrounding, The library can put a good equitant development into execution dependent upon whether the leader have a "sage jewel" of scientific decision making to understand and exert it's great signification poignantly.He delve library science and acquaint with professional skill, we can get a lot of practical experience from ancientness and today,Chinese and foreign. At the present time,run back over historical development of libary's management, getting a realization on property of common service and roles definitely.

在这样的大环境下，任何一个公共图书馆能否实现跨越式良好发展，这就要看领导者是否能以科学决策理念为&法宝&，深刻理解科学决策的重大意义并能在理论和实践创新中很好地掌握和运用决策理念的主要内容；是否能在图书馆学科理论研究的工作实践中，以图书馆学科体系为科学决策的理论基础，深入了解和研究图书馆学的形成和发展史、学科体系及分支学科、研究方法及其前景展望等，从而为科学决策在本专业学科领域的研究创新打下坚实的理论基础；是否能通过纵横分析人类文明历史进程中公共图书馆的基本职能及其演变过程，更加明确其职能的公益性质，从而树立起以最大可能实现公共图书馆的职能为成功决策的实践标准。

1,After transfected the mutated mtDNA of colorectal carcinoma,the mtDNA D-loop region of the transfected cells displays new mutation points.2,The external source pieces of the mutated mtDNA can integrate to nuclear genome after transfection.3,There's no differences in apoptosis between combinations after transfected the mutation of mtDNA in NIH3T3 and LST cells.4,The mutated mtDNA may affect the action mechanism of occurrence and development in colorectal carcinoma through affecting its mtDNA mutation or integrating exogenetic mtDNA to its nuclear which may cause the abnormal expression of oncogene or anti-oncogene.

（1）转染突变的大肠癌细胞mtDNA后转染细胞的mtDNA均可发生多处的突变位点。（2）通过转染后突变的外源性的mtDNA可以整合到核基因组内。（3）突变的mtDNA转染LST细胞及NIH3T3细胞后，不影响转染细胞的凋亡改变。（4）mtDNA的突变可能通过影响体细胞mtDNA的突变和通过外源性mtDNA在核内的整合从而影响癌基因或抑癌基因的表达异常，从而参与肿瘤的发生发展。

1,After transfected the mutated mtDNA of colorectal carcinoma,the mtDNA D-loop region of the transfected cells displays new mutation points.2,The external source pieces of the mutated mtDNA can integrate to nuclear genome after transfection.3,There's no differences in apoptosis between combinations after transfected the mutation of mtDNA in NIH3T3 and LST cells.4,The mutated mtDNA may affect the action mechanism of occurrence and development in colorectal carcinoma through affecting its mtDNA mutation or integrating exogenetic mtDNA to its nuclear which may cause the abnormal expression of oncogene or anti-oncogene.

（1）转染突变的大肠癌细胞mtDNA后转染细胞的mtDNA均可发生多处的突变位点。（2）通过转染后突变的外源性的mtDNA可以整合到核基因组内。（3）突变的mtDNA转染LST细胞及NIH3T3细胞后，不影响转染细胞的凋亡改变。（4）mtDNA的突变可能通过影响体细胞mtDNA的突变和通过外源性mtDNA在核内的整合从而影响癌基因或抑癌基因的表达异常，从而参与肿瘤的发生发展。线粒体DNA；D―环区；突变；质粒；pcDNA3.1；转染

The results showed that rice straw growth and fascicular alteration interacted when water was deficient. It not only affected the transportation of nutritious substance from rhizine and leaf to kernel, but also led to the decrease of agronomic characters and yield. 4 ecotypes of rice vascular bund...

结果表明：水分不足对稻秆及秆中维管束的影响是相互的：稻秆的发育情况影响了维管束变化，同时维管束的变化影响了稻秆的发育，最终影响营养物质从根部、叶部向籽粒运输，从而使结粒数、稔实率、千粒重、产量下降。4种生态型水稻维管束系统与一次及高次枝梗数目、结粒数、千粒重等有类似的相关性，而且水分不足时反应出相同的结果，说明土壤水分对维管束系统的分化有很大的影响，水分不足将使维管束面积变小，维管束比增大，从而使产量变小。

ERAF17 gene expresses differently between male and female reproductive organs. Its expression is induced by ethylene or ethylene released compounds that can promote femaleness. No evidence directly shows the relationship between ERAF17 gene and femaleness, however. So this work focus on proving the positive correlation between the expression of ERAF17 gene induced by ethylene and development of female flowers,then search for the signal pathway of cucumber female reproductive organ development.

ERAF17基因在黄瓜的雌雄生殖器官的表达不同，可以由乙烯诱导表达，从而推动雌性化，但是它的作用机制却不清楚，并没有明确的证据表明ERAF17基因与雌花的发育有直接关系，所以本论文研究重点在于证明乙烯诱导ERAF17基因的表达对黄瓜雌花的分化有确定的正相关，从而可以探索黄瓜雌性器官发育存在的可能的信号通路，并对应用前景进行评估。

According to Hofmann[2] et al., this approach preserves the vascularity of the patella by sparing the intramuscular articular branch of the descending genicular artery and preserves the quadriceps tendon, providing more stability to the patellofemoral joint in total knee arthroplasty.

Hofmann等人认为此法不但保留了膝降动脉的肌内关节支从而保存了髌骨的血运，而且保存了股四头肌腱从而使全膝关节置换术中髌股关节获得了更大的稳定性。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。