单一性

Along with tile rapid development of chirality science, the preparation of optically active chiral lactones is becoming increasingly important for research in chemistry and biochemistry.

摘要随着手性科学的快速发展，获取手性内酯的单一对映体具有重要的研究和应用价值。

Complete chiral induction from enantiopure-DPEN to achiral bisphosphine ligand 3a was observed in solution, with the complex adopting a single, stable and non-fluxional (even at 70 ℃) configuration.

光学纯-DPEN在溶液中对非手性双膦配体3a产生完全的手性诱导，形成构型单一的稳定RuII络合物，即使在70°C下构型仍保持不变。

In the property of a thing the negation takes the form of a specific determinateness, which is directly one with the immediacy of its being, an immediacy which, by this unity with negation, is universality. Qua "one", however, negation, the specific quality, takes a form in which it is freed from this unity with the object, and exists per se on its own account.

在特质那里，否定性是直接地和存在的直接性同一的规定性，而存在的直接性由于与否定性的同一，就是普遍性；但是当否定性摆脱了它与对方的这种统一而自在自为地存在着时，它就是单一。

By using "Behavior Style Questionnaire- Short Form" and "Young Child Attention Scale", the main findings are listed as follows: A.Results on the dimensions of temperament indicated that children's characteristics of temperament show high on rhythmicity, adaptability and intensity of reaction, middle on activity level, withdrawal, persistence and distractibility, low on sensory, and a little negative on quality of mood.

并采用「幼儿气质量表」与「幼儿注意力量表」收集资料，透过SPSS15.0的资料处理与分析，描述性统计、单一样本t考验以及皮尔森积差相关与多元回归分析结果显示：一、受试幼儿在气质各向度的表现特徵是反应强度大、情绪本质稍偏负向及反应阈偏低现象，其他，则活动量中等但稍偏低、规律性高、适应性高、面对新事物的反应倾向趋性，且坚持性、分神度均有偏高倾向。

However, when occurring in Mesozoic remelted granite, pyrite is featured mainly by high gold content in pentagonal dodecahedron and in its complex; low content in cubic pyrite; Au/Ag ratio between 1-2; both N and P types of pyrite present in most deposits and P type only in a few deposits.

产于中生代重熔花岗岩中时，黄铁矿以五角十二面体居多，五角十二面体及其聚形含金较高，立方体含金性较差；Au/Ag比值在1-2之间，As的含量较高(＞600×10〓)；Co、Ni的含量则较低，一般为10n×10〓；热电性以既有P型又有N型的P、N混合型为特征，少数金矿床表现为单一的P型。

The essential content of law is not simplex but the entia of freedom, right and power. The above three are the core and the footstone of law. However, the essential content of law has its own form which is the inner structural character. This kind of form belongs to the category of essence and it includes the norm nature, the universality, the obligation nature, the authority, the procedure nature and litigant ability of law.

法的本质内容不是单一的，而是自由、权利与权力这三元或三维要素的统一体，它们是法的核心内容、基石范畴；而法的本质内容是有其形式的，即法的内部结构特征，这种形式也属于本质范畴，它包括法的规范性及其普适性；法的义务性；法的权威性；法的程序性与可诉性；等等。

According to experimental results and etiopathogenisis and pathology of osteoporosis , and analyzing review investigation on hepcidin、associations of bone metabolism and iron metabolism and relations of ferri ion and calcium ion,we can make conclusions as follows: 1、We applied single manmade intervention approach to induce osteoporosis model in this study, there was no other influential factor. In the termination of test , rats bone density and bone histological anatomy indicated that osteoporosis model was creditable,meanwhile hepatic functional enzyme and hepatic microtome section demonstrated that hepatic function had noci-influence induced by medicinal herbs resource. Accordingly, we could believe that hepatic hepcidin gene expression and serum hepcidin contents can represent internal iron metabolism changes at selected test time. 2、In this investigation, different findings between test group and control group indicated that:according to changes of hepcidin gene expression measured by RT-PCR and changes of serum hepcidin contents determined by ELISA kit , there were correlations between hepcidin and rat osteoporosis model induced by retinoic acid. 3、Under the condition of this investigation,there was a interactive hypothesis as follows: Hepcidin iron metabolism←→ferriion←→calcium ion←→osteoporosis.

根据本次实验结果，对骨质疏松的病因病理的认识及铁代谢与铁调素、骨代谢与铁代谢关系、铁离子与钙离子的关系系列研究的回顾，经分析得出如下结论：1、本研究骨质疏松模型采用单一人工干预方法，没有其他影响因素；实验结束时大鼠骨密度、骨组织学检查表明骨质疏松形成，同时肝脏功能酶和HE切片显示肝脏功能未受药源性产生明显损伤性影响；因此，同期不同时间组大鼠肝脏铁调素基因表达、血清铁调素含量可以代表体内铁代谢不同时间的变化。2、在本研究中，模型组与对照组研究结果的差异表明：铁调素基因RT-PCR变化、血清铁调素ELISA测定含量变化与维甲酸制作的大鼠骨质疏松模型形成有实验相关性。3、在本研究平台下，形成了一个互相影响的假设图：铁调素←→铁代谢←→铁离子←→钙离子骨质疏松。

It is an effective way to comprehensively evaluate the drought tolerance of foxtail millet by Principal Component Analysis and Fuzzy Clustering,which not only could avoid the bias and the instability of single factor analysis,but also reflect the relationship between different drought tolerance related traits and drought tolerance in foxtail millet better.

利用主成分分析，结合模糊聚类的方法进行谷子的抗旱性综合评价，不仅可以避免单一指标的片面性和不稳定性，而且可以较好地揭示谷子抗旱相关性状与其抗旱性的关系。

On the basis of analyzing multicast schemes,such as MMT,AMFM and ATMM,this paper proposes an annular management strategy for multicast tree in MPLS network,aiming at that single management node brings bottleneck of the multicast tree and affects haleness of the MPLS network.

在分析MMT，AMFM和ATMM等组播方案的基础上，针对其单一管理节点容易成为骨干网上组播的瓶颈，影响MPLS骨干网上组播树的健壮性问题，提出一种环形管理组播树的策略，通过对该策略的仿真分析，表明该策略能有效地解决单个管理节点超载和组播聚合树的信息丢失等问题，提高骨干网络中组播聚合树的效率和健壮性。

The major purpose of this article is to examine the measurement of party identification in the Taiwan's Election and Democratization Study from the perspectives of intransitivity and multidimensionality.

本文以「台湾选举与民主化调查」为例，检证其政党认同的测量方式，在认同强弱度上与选民的相关政态度及政治行为是否符合「递移性」的假设；其次，以个别政党喜好差异来检证选民在认同方向上是否具有「多面向性」；最后，尝试建构单一面向的「蓝绿政党喜好差异指标」，以提高选民投票行为的解释力。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。