查询词典 LIF

An experiment was performed to compare effect of different cell media on embryonic germ cells derived from primordial germ ridge of Kunming albinotic strain mouse.

以昆明白品系小鼠胎儿生殖嵴为材料，以不同的培养液分离培养胚胎生殖细胞，发现小鼠胎儿肝细胞条件培养液的效果好于未添加白血病抑制因子的基础培养液，而差于添加了1 000 IU/mL LIF的基础培养液。

This is perhaps just as well, as the lif e of a farmer is far from easy, as Jim Doherty discovered when he set out to com bine being a writer with running a farm.

或许这也没有什么不好，因为，正如吉姆多而第当初开始其写作和农场经营双重生涯时所体验到的那样，农耕生活远非轻松自在。

It is important that rhGM-LIF can inhibit the growth of human liver cancer cell.

值得重视的是，融合蛋白对人肝癌细胞的生长也有明显的抑制作用。

The results showed that the level of LIF mRNA expression of the decidua in abortion group was 0.512±0.219,significantly lower ...

结果发现对照组LIFmRNA表达水平为 1.314± 0 。45 7，病例组表达水平为 0 。5 12± 0 。2 19，两组相比较，差异有极显著性(P 。0 1)。

Objective Constructing the eukaryotic expression vector of mouse LIF and conducing to improve the directional differentiation research of ES cell about other laboratory animals.

目的 构建小鼠白血病抑制因子的真核表达载体，有助于开展高其他实验动物的胚胎干细胞的定向分化研究。

Based on the previous literatures, the following major innovation works were carried out in this dissertation:(1) The derivatization reaction conditions of ephedrine and pseudoephedrine with sensitive derivation reagent in aqueous system were studied and two new methods were developed for the assay of them by microemulsion electrokinetic chromatography and micellar electrokinetic chromatography with LIF detection. The sensitivity and analysis times were greatly improved compared with the previous reports;(2) A new method of CZE with indirect LIF detection was developed for the simultaneous determination of six coumarin compounds (esculin, esculetin, isofraxidin, genistein, naringin and sophoricoside) with fluorescein as the probe. The proposed method enlarges the application range of LIF detector, and provides new approach for the analysis of certain compounds difficult to derivatize;(3) Based on the above research, an MEKC with indirect LIF detection method for the simultaneous determination of adenine and guanine in DNA extracts from fungus, maize and soybean was established;(4) A new method for the investigation of the complexes formed between human serum albumin and ampicillin sodium under the simulated physiology conditions using laser light scattering technique was developed.

该论文在综述前人工作的基础上，开展了如下未见文献报道的创新性的研究工作：(1)使用灵敏的衍生试剂对麻黄碱和伪麻黄碱在水体系中的衍生反应条件进行了系统研究，建立了微乳电动色谱-激光诱导荧光检测法和胶束电动色谱—激光诱导荧光检测法测定麻黄碱和伪麻黄碱的灵敏分析新方法，与以前的报道相比，灵敏度和分析时间均有很大改善；(2)使用荧光素钠作为背景荧光试剂，建立了同时分析测定六种黄酮类化合物(秦皮甲素、秦皮乙素、异秦皮定、染料木素、柚皮苷和槐角苷)的毛细管区带电泳—间接激光诱导荧光检测新方法，扩大了激光诱导荧光检测的应用范围，对难衍生化合物的分离分析提供了一种新思路和新途径；(3)以荧光素钠作为背景荧光试剂，建立了一种用于同时测定食品提取DNA中的腺嘌呤和鸟嘌呤含量的胶束电动色谱—间接激光诱导荧光检测新方法；(4)用动态和静态激光散射法研究了模拟生理条件下人血清白蛋白与氨比西林钠盐相互作用所形成的复合物，为药物分子与蛋白质的相互作用、药代动力学等的研究提供了一种新思路。

XPS measurement revealed that the shoulder peak relative to metal Lils, this result is confirmed by HREELS measurements.

对在几种条件下LiF和Al的化学反应的研究表明：在有Alq〓参与的情况下，LiF和Al在室温下发生反应。

In view of the methods of generating and detecting 〓 radicals, we have built up an experimental set-up of the pulsed dc discharge combined LIF technique, by which we have studied the collisional quenching of electronically excited 〓 radicals by various quenchers.

采用对〓／Ar混合气体脉冲直流放电的方法获得了生成稳定且数密度足够的〓自由基；解决了直流放电过程中产生的其它碎片对〓自由基的LIF信号干扰的问题。2。

Employing high-dilute method and 5-fold excess amine prepared two new "two-armed" acyclic diamine intermediates I_a and I_b, which are also intermediates of synthesizing microcyclic compounds, and eight aromatic Schiff bases, II_, were synthesized from reaction of I_a or I_b condensing with different aromatic aldehydes. Their composition and structure were characterized by Elemental analysis, IR, UV-Vis, LIF,~1HNMR and MS. The hydrogen bond interactions and MS fragmental patterns were also discussed.3. Several novel transition metal complexes using II_a as ligand were synthesized and identified by Elemental analysis, IR, UV-Vis,~1HNMR and molar conductivity.

1，采用高度稀释及胺过量五倍的方法合成了两个具有吡啶双酰胺臂的非环二胺Ⅰ_a和Ⅰ_b，并以它们为中间体进一步合成了八个芳香席夫碱Ⅱ_a-Ⅱ_h，通过元素分析及各种波谱测试鉴定了它们的组成与结构，对化合物的UV-Vis、LIF、IR、~1HNMR及MS进行了较为详细的讨论，还探讨了席夫碱的氢键相互作用及质谱裂解方式； 2，以席夫碱Ⅱ_a为配体合成了几个新型的过渡金属配合物，并通过元素分析、UV-Vis、IR、~1HNMR、摩尔电导及DTA—TG对其进行了表征，讨论了化合物的配位情况及配体在配位中的脱质子行为。

Methods The calibrated LiF grain was enclosed with PVC tube and put into the esophagus near to targeted center, CT simulation and 3D-TPS design carried out and three-field radiation ,one anteriorly and two posteriorly, by 6-MV-X-ray of linear accelerator was done after confirmation by EPID.

标准电离室标刻LiF颗粒聚氯乙烯管封装，通过硅胶管置入食管腔近靶区中心，行CT模拟 3D TPS计划设计，电子射野影像系统确认后加速器 6 MV X线前一后二三野照射，TLD读数。

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％。