多分子的

Production of mitogen-contamination free alginates with variable ratios of mannuronic acid to guluronic acid by free flow electrophoresis.

影响微囊膜通透性的因素有：(1)多聚赖氨酸的相对分子质量；(2)多聚赖氨酸的浓度；(3)海藻酸钠与多聚赖氨酸相互作用的时间。

It was also studied the tissue distribution characteristics of harmine intravenous emulsion in mice.

采用反向透析技术测定了乳剂的体外释药性能，这种释放模型较好地摸拟了体内生物环境，用多个小透析囊巧妙地实现了药物分子与介质中其它成分的直接分离，使含量测定易于进行；实验结果表明，乳剂粒子内药物向介质的释放过程和释放出来的药物分子渗透进入囊的过程均为被动扩散机制，并且药物在乳剂中的相分配不同其体外释药速度，尤其是最初释药阶段的速度存在明显差异（P.05）。

A couple of inspired hustlers might stimulate more football, more money – and more jobs for the boys.

所以他们希望这两个敢于创新的活跃分子能给他们带来更多的足球比赛，更多的钱，以及更多的就业机会。

As a kind of novel photochromic material, diarylethenes have been under widely research due to excellent thermal stability, good fatigue-resistance, fast response, and high conversion degree. Their latent applications are of memory, molecular switch, multi-color display, and light-driven molecular motors.

作为新型的光致变色材料，二芳乙烯化合物由于其良好的热稳定性、优良的耐疲劳性能、较快的响应速度及高的光转化率，近年来已成为有机光致变色研究的热点，其应用主要集中在光信息存储、分子开关、多彩色显色器、光驱动分子机器等。

At least one layer of said I-Polar is optically anisotropic and is made by means of Cascade Crystallization Process, is characterized by a globally ordered biaxial crystalline structure with an intermolecular spacing of 3.4 } 0.3 A in the direction of one of optical axes, is transparent in the visible spectral range, and is formed by rodlike supramolecules representing at least one polycyclic organic compound with a conjugated -system and ionogenic groups.

所述I-Polar中至少有一层是光学各向异性的，并通过级联结晶工艺制得，其特征是在一个光轴方向上具有3.4±0.3的分子间间距的全局有序的双轴晶体结构，该层在可见光光谱区域内是透明的，并由代表至少一种具有共轭π体系和离子型基团的多环有机化合物的棒状超分子形成。

AFLP marker technique was used to investigate the genetic relationships between 50 accessions of maize and its wild relatives including teosinte, Tripsacum and Coix With twenty one AFLP primer combinations of PstⅠ/MseⅠ, 641 AFLP amplified bands were obtained, including 586 polymorphic bands with an average of 30 52 per primer combination and the polymorphism percentage of 91 4% Cluster analysis using UPGMA method based on the data of AFLP showed that the 50 materials could be divided into...

用AFLP分子标记技术对 5 0个有代表性的玉米及其野生近缘种大刍草、摩擦禾、薏苡材料进行了遗传关系分析。利用 2 1个PstⅠ MseⅠ引物组合检出可辨认带共 6 4 1条，其中多态性带 5 86条，平均每对引物得到 30 5 2条多态性带，多态性 91 4 %。聚类分析结果表明，可以将 5 0个材料分为 3大类，与已有的玉米族分类一致，但与玉蜀黍属内的种间和种内分类存在差异，说明大刍草各种内存在较大的遗传多样性。本实验发现玉蜀黍属与摩擦禾关系比与薏苡的关系更近，但并没有发现玉米与小颖玉米亚种比与其他大刍草的遗传关系更近。

On the basis of molecular design, urushiol and tyrosine, with unique chemical structure, were selected as units to fabricate five kinds of stable and functional multilayer films via layer-by-layer self-assembly method.

本论文在对自组装膜的发展历史、自组装技术进行综述的基础上，从分子设计的思想出发，选用具有独特结构和性能的功能分子——漆酚和酪氨酸作为组装基元，以层层自组装技术制备了五种新型的，具有高稳定性的功能多层膜。

Recent results indicate that （1） Oryzeae is monophyletic and falls into two main clades corresponding to the traditionally recognized subtribes;（2） Close affinities of the monoecious genera are not supported, suggesting the multiple origins of unisexual florets;（3） Previous recognition of three monotypic genera （Hydrochloa, Porteresia and Prosphytochloa） is not justified;（4） Based on dating using molecular clock approach, it is estimated that Oryza and Leersia branched off from the remaining genera of Oryzeae -20 million years ago, and separated from each other -14 MYA.

目前已有的研究结果表明：稻族是单系类群，可分为两个主要分支，相当于传统的两个亚族（Zizaniinae和Oryzinae），但稻族单性花小穗是多次起源的，不宜作为划分亚族的依据；一些单型属（Hydrochloa、Porteresia和Prosphytochloa）的建立得不到分子证据的支持；根据分子钟原理估计稻族两个主要分支的分歧时间在大约2000万年前，而稻属和近缘属假稻属Leersia的分歧时间为1400万年：稻属内主要类群的分歧时间在900万年前左右。

It is the main point to focus on the elucidating of the pathogenesis of PNC as a polygenetic inheritance tumor, primarily establishing of the concept of susceptibility gene groups in NPC and the carcinogenesis model of the multi-step Domino effect involved in the molecular mechanisms of NPC dominated by susceptibility gene groups in order to lay out a substantial foundation for finding the high-risk susceptibility factors of NPC, screening the high-risk population of NPC and exploring the targetic and individual measures in diagnosis and treatment of NPC.

现主要阐述鼻咽癌作为一种多基因遗传性肿瘤的病因发病机制，初步建立鼻咽癌易感基因群的概念和鼻咽癌发生发展过程中易感基因群主导的多阶段性多米诺骨牌效应分子机制假说，为寻找鼻咽癌遗传易感风险因子，筛选鼻咽癌高危人群以及探索鼻咽癌靶向性及个体化的诊断和治疗手段奠定实验与理论基础。

Recently, Shelnutt and co-workers obtained discrete porphyrin nanosheets reprecipitated from their solutions;[3] Sathish and co-workers constructed hexagonal C60 nanosheets using a liquid–liquid interfacial precipitation method;[4] the groups of Yao[5] and Hu[6] prepared singlecrystalline nanosheets of polycyclic aromatics using a surfactant- assisted reprecipitation and a physical vapor transporting method, respectively; and Zhang and co-workers suggested that molecules with intramolecular charge-transfer dipole moments could be grown into quasi-2D nanostructures.

近年来，Shelnutt及其同事由他们的溶液再沉淀获得了离散的卟啉纳米片[3]； Sathish和他的同事用液－液界面沉淀法构建了六边形的C60纳米片[4]； Yao[5]和Hu[6]分别用表面活性剂辅助的再沉淀和物理气相输运法制备了多环芳烃的单晶纳米片；而Zhang和他的同事提出，具有分子内电荷转移偶极矩的分子可以生长成准二维的纳米结构[7]。

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。