链体

The experiment results show that the active reaction groups in chemical degradation canbe restrained by a little auxiliaries of ultraviolet resistant, heatproof antioxdant and antiager etc. which addedin PP.

加工温度选择是有效利用化学阵解剂来改善PP熔体流动性的重要条件之一，同时PP分子链与化学活性基团的降解现象是有温度依赖性的。

METHODS: The total RNA was obtained by TRIzol from an antiricin neutralizing monoclonal antibody hybridoma cell named 4C13 and heavychain and lightchain variable fragments were amplified by overlap PCR and accepted by Genbank of NCBI. VH and VL were linked by3 with a direction of VHlinkerVL and cloned to pCDNA3.1 vector expression system.

用TRIzol提取抗ricin中和性单抗杂交瘤细胞4C13总RNA，扩增其轻、重链可变区基因，登陆GenBank；用Linker3将VH和VL连接，用重叠延伸PCR克隆入真核表达载体pCDNA 3.1，用脂质体转染293T细胞，对瞬时表达产物进行生物学活性检测。

We found that the induction of long-term facilitation by repeated applications of serotonin, a modulatory transmitter released during learning in Aplysia, requires upregulation of kinesin heavy chain in both pre- and postsynaptic neurons.

在重复利用血清素长期诱导下，作者发现在海蜗牛感应形成时，一种调节传送体被释放出来，而这一过程需要在神经联会前后都具有上调的驱动蛋白重链。

However, the area is less studied than other areas of endophyteresearch world wide. Therefore, a series of experiments were carried out in laboratory,glasshouse and field to compare the responses of endophyte infected plants andendophyte free plants of perennial ryegrass varieties to 10 fungal pathogensisolated from turf type ryegrass in Lanzhou. The pathogens used in the experimentswere Alternaria alternata、Bipolaris sorokiniana、Fusarium avenaceum、Curvularialunata、Ascochyta leptospora、Fusarium acuminatum、Fusarium chlamydosporum、Fusarium oxysporum、Fusarium solani and Gliocladium roseum. In addition, someprotective enzymes activity and alkaloids contents of E+ and E- plants were measuredand LpsA gene of the common strain - Lp19 and mutant strain -AR1 of Neotyphodiumlolii were sequenced to identify their ...

本研究在初步明确兰州市坪用黑麦草内生真菌及其病原真菌多样性的基础上，在实验室、温室和田间开展了系列研究，比较了带内生真菌和不带内生真菌的黑麦草在离体和整株条件下对细交链孢、离蠕孢、燕麦镰孢、新月弯孢、小孢壳二孢、锐顶镰孢、厚垣镰孢、尖镰孢、腐皮镰孢和粉红粘帚霉等10种病原真菌的抗病性，测定了E+和E-植株数种保护酶活性及其生物碱含量的变化。

Combining PRISM theory, MD simulation and Variational method, a single-site semi flexible model is proposed to describe atactic polystyrene melt.

结合PRISM理论、MD分子模拟和变分法，得到了可以描述聚苯乙烯熔体的单点半柔性链模型，提出了一个研究实际聚合物体系的有效方法。

It is an enveloped, non-occluded, bacilliform and circular dsDNA virus.

是一种具有囊膜的、无包涵体的、类杆状双链环状DNA病毒。

It is shown that the first hyperpolarizability β of barbituric acid deviratives strongly depends on the donor structure and the length of conjugate chain, but is not sensitive to the acceptor structure. The HOMO-LUMO calculations reveal that the first hyperpolarizabilities of barbituric acid deviratives are linear to the HOMO-LUMO energy gap △E.

研究结果表明，给体结构与共轭链长度对第一超极化率β影响较大，而受体结构对分子第一超极化率的影响很小，并且分子第一超极化率与分子前线轨道HOMO与LUMO的能级差△E呈较好的线性关系。

Compound (3) and (4) are isostructural compounds containing lanthanide binuclear dimer and 1-D lanthanide helical chain.

化合物(3)包括两种基本结构单元，由配体pydc上μ3-O桥连起来的镧双核单元和1-Dn螺旋链。

Expression of this gene is more efficient, because the enzyme catalyses the three chain elongation reactions starting from the C5 precursors to the C20 molecule.One way to increase the heterologous production is to increase the pool of precursors in the host.

表达这种基因是更有效率的，因为酶催化的三个链伸长反应，从碳五前兆向c20 molecule.one方式，以增加外源生产，是增加池体在东道国。

Photosystem Ⅰ is a pigment-protein complex embedded in the photosynthetic membrane, which includes more than ten protein subunits, and catalyses the transfer of electrons from the PC to the Fd through a series of electron transfer components.

光系统Ⅰ是整合於光合膜上的由多个蛋白亚基组成的色素蛋白复合物，它在光合电子传递链中催化电子从PC经过一系列电子传递体到Fd的传递。

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。