等位性

Novel chitosan derivative with long alky groups as the hydrophobic moieties and carboxymethyl groups as the hydrophilic moieties was synthesized. The chemical structure of N-octyl-O, N-carboxymethyl chitosan was characterized via FTIR, 1H NMR and elemental analysis. The physical properties were analyzed with wide angle X-ray diffraction and differential scanning calorimetry.

以天然可生物降解的壳聚糖为原料，通过在壳聚糖6位羟基上引入羧甲基，在2位氨基上引入疏水烷基链，制得N-辛基－O，N-羧甲基壳聚糖两亲性衍生物，分别用FTIR、1H NMR和元素分析等技术对其结构进行表征，用广角X射线衍射和差示扫描量热法对具物理性质进行分析，并考察其在各种溶剂中的溶解性能及其对难溶性药物的增溶能力。

This article states and briefly analyzes some unknown characteristics of the economic effects of education, such as unequal effects, bi-polarity, occasionality, fluctuation, multi-phenomena, phases and float.

根据十多年来在 2 3个省市进行的教育与社会调查，结合教育经济学理论分析，本文提出教育对经济产生作用的不等效性、两极性、或然性、波动性、多象性、位相性、漂移性等尚未为人们所认识的特性，并加以简要分析

In an attempt to evaluate the safety and efficacy of Healon in trabeculectomy, 20 eyes with Healon and 20 eyes without Healon injection after trabeculectomy are compared. Trabeculectomy using Healon will not induce transient rise of intraocular pressure. By filling the anterior chamber with Healon, a tamponing effect results which will maintain a deep chamber and reduce complications such as flat anterior chamber, choroidal detachment and striate keratopathy in the early postoperative period. In long-term evaluation there is no difference in pressure control, conjunctival scarring and corneal endothelial cell loss between Healon group and Non-Healon group.关键词 trabeculectomy , flat anterior chamber , choroidal detachment , intraocular pressure

为了评估Healen在小梁切除术中之疗效及安全性，选20位接受小梁切除术者，同时注射Healon於前房为实验对象，另20位接受传统小梁切除术为对照组，发现使用Healon并不会引起一过性眼压上升的现象，Healon注入前房，产生填塞作用，最大的好处是可以维持前房深度，减少术后合并症如前房消失，脉络膜剥离及角膜水肿等，然长期追踪，对於降眼压的幅度，不因使用Healon而可达到低眼压状态，也不会减少结合膜瘢痕化而促进房水引流，然Healon系一无毒，无炎性，无抗原性高黏稠性的物质，不因使用而发生炎性反应，同时有保护角膜内层细胞的功能。

Based on the practice of nectarine breeding,the systematical inheritance of peel tomenta, flesh color ,pollen fertility and flavor of parents and their hybridization offsprings was analysed.

结合油桃育种实践，对亲本、杂交后代的果皮茸毛、肉色、花粉育性、果实风味等性状进行了系统遗传分析，结果进一步证实了果皮茸毛、肉色、花粉育性3个性状各由1对等位基因控制，其中果皮有茸毛对无茸毛、白肉对黄肉、花粉可育对败育均呈完全显性，且这3对等位基因分别呈独立遗传，无互作效应；选择甜风味的品种作亲本，杂交后代出现甜油桃单株的比例较高。

Compared with low resolution results of HLA-DRB1 alleles,high resolution results were analyzed to see any correlation between HLA-DRB1 alleles and GVHD. by double-blind statistically analysis of HLA-DRB1 high resolution in 48 donor/recipient typings in UCBT.

利用盐析或柱提法提取48例非亲缘性脐血及移植患者全血DNA，采用HLA-SBT方法分别对HLA-DRB1等位基因进行高分辨分型，并与HLA-SSP（HLA-sequencing specific primers）低分辨结果进行比较分析。

Methods Allele Specific polymerase chain reaction and Confronting Two-pair primers-PCR techniques were used to determine β_2-AR genetic polymorphisms in 42 patients with asthma,which were treated in The Affiliated Hospital of Inner Mongolia Medical College from 2004 July to 2005 September and 30 healthy controls.

方法对2004年7月至2005年9月内蒙古医学院附属医院收治的42例支气管哮喘患者和30名健康者采用等位基因特异性聚合酶链反应和两对相对引物PCR法(confronting two-pair primers，PCR-CTPP)进行β2-AR基因多态性分析。

Mapping quantitative trait loci was undertaken base on the constructed molecular linkage map of this population. Two QTLs (qDR-5 and qDR-12) for drought tolerance were identified, they were in the region of GA41-GA257 on chromosome 5 and RG457-Y12817R on chromosome 12, respectively.

利用该群体的分子连锁图谱进行数量性状座位区间作图分析，共检测到2个耐旱的QTL(qDT-5和qDT-12)，分别位于第5染色体的GA41-GA257之间和第12染色体的RG457-Y12817R之间，这两个QTL的加性效应均来自ZYQ8的等位基因。

We hypothesise that the E2 allele may protect against iral persistence ia defectie binding of HC lipoiral particles to the cellular receptors inoled in entry of these infectious particles.

我们推测 E2等位基因可能通过HC脂病毒颗粒与这些感染性颗粒入胞过程中的细胞受体缺陷性结合而对病毒感染的迁延性起到保护作用。

It is shown that PTDT is a robust and valid approach for mapping QTL of threshold traits. Moreover, PTDT is powerful for marker with multiple alleles and multiple tightly linked markers, too. From the results of simulation on quantitative traits, following conclusions can be derived.

结果表明：(1)PTDT是一个稳健的QTL定位分析方法，在各种参数组合下，其假阳性概率(1型错误)都在设定的显著性水平附近；(2)PTDT不仅可以检测到效应较大的QTL，而且对效应较小的QTL检验功效依然很高；(3)对各种状态1发生率的阈性状PTDT检验功效也很高；(4)对利用多等位基因标记、多个紧密连锁的标记的QTL定位，PTDT依然是一个高效方法。

The results showed: 1 Infants fed regular formula had a higher incidence of moderate to severe atopic dermatitis and allergic rhinitis than those fed NAN H.A.

在一年的临床追踪中，我们观察过敏病（异位性皮肤炎，过敏性鼻炎或气喘）的发生，并且定期抽血检验其血清IgE抗体和牛奶、蛋等特异抗体。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。