信号物

Signal 1 contain compound substance by the human organization of APC cell surface Ⅱ kind molecular present antigen, identify for T cell.

信号1由APC细胞表面的人类组织相容复合物Ⅱ类分子呈递抗原，供T细胞识别。

A detection system is presented for truth-preserving sampling corer in this paper. Based on control unit AT89S52, the temperature and pressure in the corer are monitored, and moreover, long distance transmission of digital signal is realized in this circuit.

介绍一种对保真取样器内部情况进行监控的检测系统，该系统以AT89552单片机为控制单元，对取样器内部的压力和温度进行检测，并利用RS485接口，实现数字信号远距离传输，在海底沉积物保真取样中有一定的实用性。

The cDNA has 752bp and encodes a protein of 216 amino acids. Thenascent Src l contained a signal peptide of 19 amino acids, a propart of 19 amino acidsand a 178-amino-acid mature Src l. The characteristic amphiphilic α-helix of cytolysin islocated at the N-terminus of the mature Src l.

根据文库的EST序列设计引物，从玫瑰红绿海葵克隆到一全长cDNA序列，命名为Src I，利用生物信息学方法对其进行了分析，结果表明，该cDNA序列编码一个216个氨基酸的海葵细胞毒素前体蛋白，它包括19个氨基酸的信号肽、19个氨基酸的propart motif和178个氨基酸的成熟蛋白。

For cloning antifreeze protein gene from a desert darkling beetle Microdera punctipenis dzunarica in Xinjiang, the primers were designed according to the core sequence of AFP gene deposited in GenBank, and the cDNA fragment about 294 bp named as MpAFP5 was amplified with the RT-PCR and 3'-RACE technique. Sequence analysis revealed that the cloned cDNA fragment named as MpAFP5 coded the mature peptide of AFP.

根据GenBank中已发表的昆虫抗冻蛋白基因的保守序列设计引物，利用RT-PCR技术结合3'-RACE扩增的方法，从新疆荒漠昆虫准噶尔小胸鳖甲Microdera punctipenis dzunarica中获得了长约294 bp不含信号肽的抗冻蛋白cDNA片段，命名为MpAFP5，其全长序列为363 bp(GenBank注册号为：AY821792)。

At the beginning, HLA class I/peptide complex teramer was prepared, including the most frequent alleles in Chinese, i.e., HLA-A2 and HLA-A24. Then the aAPCs were assembled by coating a cell-sized bead with pMHC and anti-CD28 antibody, which were able to provide the dual signals required for T cell activation, and used as stimulator to generate pMHC-specific CTL by co-culture with allogeneic peripheral blood lymphocyte.

首先制备包括我国人群基因频率最高的HLA-A2，HLA-A24的HLA/抗原肽四聚体，在此基础上，制备能够为T细胞提供第一、第二活化信号的aAPC，其表面包被的HLA/抗原肽复合物容易控制，用于诱导同种个体的T细胞产生同种CTL。

We show that in mammalian cells, the Sir2 homolog SIRT1 appears to control the cellular response to stress by regulating the FOXO family of Forkhead transcription factors, a family of proteins that function as sensors of the insulin signaling pathway and as regulators of organismal longevity.

在哺乳动物Sir2同源物SIRT1似乎通过调节FOXO Forkhead转录因子家族来控制细胞对应激的反应，该转录因子家族可以作为胰岛素信号转导的传感器和生物寿命的调节因子。

Although no cells with high selectivity to proteins had been discovered in the gustation organ of insects till now in the literature, however, bovine serum albumin was found can lead to strong spikes on this sensor, which are different from that caused by any other stimulants that had been tested.

研究发现牛血清白蛋白能够引发不同于其他刺激物的脉冲，但还不能确定这种脉冲信号是否是一种对蛋白质特殊敏感的受体细胞所引发的。

The Diels-Alder cycloadditions of [60] fullerene for preparation of optical limitingmaterials are discussed in chapter 3 and 6. Soluble cycloaddition derivatives of 〓aresynthesized by the reaction of 〓 with indene,1,1'-biindene andcyclopentadiene derivatives.〓Particular, the Diels-Alder cycloaddition of 〓 with1,1'-biindene under controlled conditions affords the stable monoadduct 〓〓of novel structure, which was confirmed by HPLC, FTIR, FD-MS,〓NMR,〓 NMR, HMQC and HMBC spectra, Its two bridgehead cage carbons resonate at70.91ppm, The 〓 NMR spectra showed 38 lines consistent with the 〓 symmetryassociated with [6,6] addition. The 〓 shows similar optical limitingproperties to that of 〓 in toluene for 8ns laser at wave length 532nm. Moreover, thehigh solubility of this adduct in polar solvents such as THF, acetone enables itsincorporation into sol-gel glass matrix. The thin films prepared via the sol-gel methodshow improved OL behaviour compared to those of 〓. The langmuir-Blodgett filmformation and uv-visible absorption of 〓 are also investigated. LBmonolayer of this compound is prepared on the air-water interface at 〓 mol/l. In chapter 4, three water-soluble derivatives of [60] fullerene: fullerol(1), theaddition product (2)of fullerol (1)with polyvinylpyrrolidone and fumaric acidderivative of 〓(3) are synthesized and characterized.

通过Diels-Alder环加成反应，用茚〓和1，1'-联茚〓及取代茂合成了一系列可溶性的〓环加成衍生物，发现可控制反应条件，使1，1'-联茚与〓反应，并高产率地得到具有新颖结构的单加成物，用HPLC、FTIR、FD-MS 及〓、HMQC、HMBC等多种波谱技术对其结构进行表征，测得它的两个〓杂化的桥头碳的化学位移为〓ppm，证明生成的衍生物为6∶6闭式环加成，〓NMR谱中共给出38个信号，表明〓联茚衍生物分子具有〓对称性；在波长532nm，脉冲宽度8ns的激光下，〓联茚衍生物的甲苯溶液的光限幅性能与〓的甲苯溶液相近，由于〓联茚单加成衍生物熱稳定性好，在四氢呋喃，丙酮等极性溶剂中溶解性好，能分别均匀地掺入溶胶-凝胶中，已发现它的溶胶(so1)光限幅性能优于纯〓的光限幅性能；使用Langmuir-Blodgett技术将〓联茚衍生物在空气和水的界面进行了LB单层膜和多层膜实验以及UV-Vis吸收谱研究，通过等温压缩曲线测试，证明浓度为〓〓时，〓联茚衍生物能够形成单层膜。

To deeply understand the mechanism of their induction by wounding and their functions in interplant communications, four diverse tree species: ashleaf maples Acer negundo L.

植物创伤诱导挥发物在植物与昆虫、植物与植物之间的相互关系中起着非常重要的信号作用。

Results: 72 cases with intrauterine residual and 8 cases with endometritis-like echo showed local blood flow increase, appearing type low resistance arterial blood flow spectrum, RI.6, 6 cases without blood flow signal are obsolescent blood clot.

结果：72例宫内残流物及8例宫内膜炎性改变的病例显示局灶性血流丰富区，呈低阻力型动脉血流颇谱，RI.6；6例未探及有血流信号的病例为陈旧性血块。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。