查询词典 groups

The reader will need to know some basic finite group theory: the Sylow theorems and how to use them and some elementary properties of permutation groups and solvable and nilpotent groups.

读这本书之前，读者需要一些有限群论的基本知识，如Sylow定理及其应用，置换群，可解群和幂零群的基本性质等等。

The conclusions were as follows: theνO-H andνC=O IR absorption maxima shifted towards higher wave numbers after imprinting 17β-estradiol on TFMAA-co-TRIM copolymer with the red shift of theνO-H groups being apparent after precipitation polymerization for 16h while that forνC=O groups being observed after polymerization for 24h. A strong interaction between TFMAA and 17β-estradiol was confirmed by the high selectivity for 17β-estradiol, as indicted by the values of the separation factor of isomers of 17β-estradiol/17α-estradiol (2.28) and the imprinted factor (3.01). Particle diameter of TFMAA-co-TRIM polymer was between 300 nm and 1.5μm, which suited well for solid phase sorbent throughout at low column pressure. The recognition of imprinting TFMAA-co-TRIM polymer for sterol molecules was driven by enthalpy eluted with acetronitile, and low temperature was in favor of the separation of sterol structure analogues on imprinting column. TFMAA-co-TRIM polymer possessed of determinate anti-heat stability, with melting point beginning at 255.84℃, Tp=257.40℃, control TFMAA-co-TRIM polymer and imprinting TFMAA-co-TRIM polymer were respectively decompounded at 267.79℃and 343.11℃, and solid micro-extraction noddle prepared by the special polymerization also showed definite recognition for 17β-estradiol by GC/MS detecting at 270℃. By selection of various washing and elution solvents, elution reagents of close polymerization system were of more advantage in template molecules retention and recognition on molecularly imprinted solid phase extraction column. At a certain extent, progesterone, 17α-estradiol, 17β-estradiol and 4-androstene-3, 17-dione could be intercepted on the MISPE column. Especially, MISPE had high selectivity for progesterone, and imprinting TFMAA-co-TRIM polymer could achieve adsorption balance within 50 min by absorption kinetics test for 17β-estradiol. However, MISPE column showed better selectivity and enrichment property for 17β-estradiol than C18 and CSPE columns according to the data from HPLC and GC/MS analyses. Recovery of 17β-estradiol on MISPE column was up to 85.5% while when prime extracting solution of milk powder was sampled, the recovery of CSPE and C18 columns were 43.7% and 30.7%, respectively.

通过研究阐明：紫外聚合产物TFMAA-co-TRIM中的νO-H振动吸收峰在聚合16h后红移，νC=O振动吸收峰在聚合24h后红移；TFMAA-co-TRIM对雌二醇异构体的印迹因子达到了3.01，α为2.28，优于其它功能单体参与得到的聚合物识别特性；TFMAA-co-TRIM聚合物粒径介于300 nm至1.5μm之间，作为色谱固定相具有良好的通量和低的柱压；在乙腈流动相中，TFMAA-co-TRIM分子印迹固定相的分离过程主要被焓驱动，低温有利于分子印迹固定相分离甾醇结构类似物；TFMAA-co-TRIM分子印迹聚合物在255.84℃时开始熔融，Tp=257.40℃，聚合物CP的降解温度在267.79℃，MIP降解温度在343.11℃，制备的固相微萃取头初步经GC/MS 270℃的耐热性测定；不同的洗提溶剂筛选证明了选择接近聚合溶剂的洗脱体系更有利于MISPE发挥识别效应；分子印迹固相萃取柱对孕酮、17α-雌二醇、17β-雌二醇和雄烯二酮都具有不同程度的保留特性，可作为此类化合物的吸附材料，特别对孕酮强保留的富集特性，可作为孕酮的选择性识别吸附剂，其分子印迹聚合物对17β-雌二醇的吸附动力学测定显示在50 min内基本达到吸附平衡，具有作为传感器核心敏感材料的潜力；对比萃取奶粉中17β-雌二醇性能，MISPE柱比非分子印迹固相萃取柱和C18柱具有更高的保留，回收率依次为85.5%，43.7%和30.7%。

The researchers report they found a significant curvilinear association between BMI and baseline cognition for both black (-0.0014; P =.001) and nonblack (-0.0011; P =.002) participants and a small positive effect of increased BMI on the rate of cognitive decline over the 6-year period for both groups."These associations were substantially reduced and no longer significant in both groups when we dropped those participants with a MMSE score of less than 24, suggesting the observed associations may have been influenced by those participants with preclinical early dementia," the authors write.

研究者报告指出，他们发现，黑人(-0.0014； P =。001)和非黑人(-0.0011； P =。002)两组的BMI，与开始时的认知之间都有显著的曲线关系，且两组在6年追踪期间，BMI增加对认知衰退比率稍有正面效果；作者表示，当我们排除那些分数小於24者，这两组的这些关联都相当程度地降低且不再明显，显示所观察到的关联可能受到那些临床前早发失智症者的影响。

Ability to differentiate diets was ascertained using mean intakes of food groups/nutrients followed by a nonparametric test of trends across ordered groups.

以完成的数据分析：均数和标准差被用于描述食品摄入和RC-DQI分数。

Several of the amino acids possess nonpolar R groups that are hydrophobic, and other R groups have hydrophilic character.

一些氨基酸有非极性R基团，它们是疏水性的，而其它的R基有亲水性。

Several of the amino acids possess nonpolar R groups that are hydrophobic , and other R groups have hydrophilic character.

一些氨基酸有非极性R基团，它们是疏水性的，而其它的R基有亲水性。甲烷被称为疏水的。

In fact students with special needs can be found anywhere under the normal curve,but the two extreme groups are the more obvious groups for provision of special service

事实在，在处于正态曲线中的还有很多特殊需要的学生，只是两个极端的群组更明显需要特殊的照顾。

Methods:49 male Sprague-Dawley rats were divided into five groups: tail-suspension group I, fed with10 wt % corn oil, tail-suspension groups IK III, IV fed with three levels of fish oil (0.5, 1.5 or 3.0 wt %; low, middle and high level offish oil, respectively), normal gravity group V fed with 10 wt % corn011 served as normal control.

选用三周龄断乳雄性SD大鼠49只，采用最小体差法随机分为5组：Ⅰ组为悬吊对照组，饲喂含10wt％的玉米油饲料；Ⅱ、Ⅲ、Ⅳ组为悬吊实验组，分别饲喂含0.5wt％，1.5wt％和3.0wt％鱼油的合成饲料，并以玉米油调配各组饲料的总脂肪含量为10wt％；Ⅴ组为地面正常对照组，饲喂含10wt％的玉米油饲料。实验悬吊时间为30天。

Religion deals with the nature of life and death, the creation of the universe, the origin of society and groups within the society, the relationship of individuals and groups to one another, and relation of humankind to nature.

宗教处理生活的本质和死亡、宇宙万物，社会中社会和团体的起源，个体之间和团体之间的关系，人与自然的关系。

The solubilities in some solvents were investigated and solubilization abilities of OCC for water-insoluble drugs were evaluated. The results show that the degree of substitution of carboxymethyl groups and octyl groups are determined to be 115.9% and 58.0%, respectively. OCC are insoluble in organic solvents while show a much better solubility in water and formed opalescence solutions, which increased the solubility of paclitaxel up to 500 folds in water. The drug loading and drug encapsulation efficiency of OCC are 34.6% and 89.9%, respectively.

所制备的OCC羧甲基取代度为115.9%，取代主要发生在6位羟基上；辛基取代度58.0%，取代主要发生在2位氨基上；与壳聚糖相比，OCC分子间／内氢键作用减弱；OCC在常用的有机溶剂中不溶，但在水中溶解度增加，能够形成具有淡蓝色乳光的纳米胶体溶液，对难溶性抗肿瘤药物紫杉醇具有优越的增溶能力，使紫杉醇在水中的溶解度提高近500倍，载药量34.6%，包封率为89.9%。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。