前期

The grain-leaf ratio showed a periodic oscillation relation to total seedling number in each growing stage, it was decreased with the increasing of total seedling number in earlier winter stage, wintering stage and jointing stage and was increased with the increasing of total seedling number in turning green stage. The grain-leaf ratio was bigger when the total seedling number was 2700000-3200000 plants/hm^2 in earlier winter stage and was 6400000-8200000 plants/hm^2 in turning green stage.

粒叶比与各生育阶段总苗数呈周期性振荡关系，且随着冬前期、越冬期和拔节期总苗数的增加而减小，随着返青期总苗数的增加而增大，当冬前期总苗数在270万320万株／hm^2、返青期总苗数在640万820万株／hm^2时，粒叶比较高。

Methods: MMP-2,-9 expressions were detected by immunohistochemistry in 20 normal term placentae and 20 preeclampsia placentae respectively.

采用免疫组化SABC法检测MMP-2，-9在子痫前期和正常胎盘上的表达；采用荧光实时定量PCR检测子痫前期和正常对照胎盘MMP-2，-9在mRNA水平的表达。

The expression level of HLA-G in placentae of PE patients decreased apparently, which might be connected with the physiological functions of PE.

子痫前期患者胎盘组织HLA-G的表达明显下降，这一异常指标可能参与了子痫前期的发生和病理、生理过程。

Methods: MMP-2,-9 expressions were detected by immunohistochemistry in 20 normal term placentae and 20 preeclampsia placentae respectively. In addition, mRNA of MMP-2,-9 were analysised by real time PCR in both groups.

采用免疫组化SABC法检测MMP-2，-9在子痫前期和正常胎盘上的表达；采用荧光实时定量PCR检测子痫前期和正常对照胎盘MMP-2，-9在mRNA水平的表达。

Nanjing Medical University, Nanjing 210029, ChinaAbstract: Objective: To explore the expression meaning of humam leucocyte antigen-G by compared content of HLA-G between PE patients and normal placentae women.

目的：通过检测人类白细胞相关抗原G在子痫前期患者与正常妊娠胎盘组织中的表达，探讨HLA-G在子痫前期患者胎盘组织中的表达意义。

The relationship between MFs and MTs in the organization of PPB was investigated in garlic root tip cells subjected to treatment with cytochalasin D , latrunculin A and phalloidin .

用微丝特异性解聚药物（细胞松弛素CD和LAT A）以及微丝稳定药物处理大蒜根尖分生组织细胞的实验结果表明：微丝被破坏后，导致了早前期微管带宽度明显增加，Ph处理则对早前期微管带的宽度无影响。

Methods: ELISA was used to determine the serum of TPA and sVCAM-1 in pre-eclamptic and normotensive pregnant women, and the correlation of pre-eclampsia and neonatal outcomes was analyzed by rank correlation.

采用酶联免疫吸附法（enzyme linked immunosorbent assay，ELISA）测定子痫前期患者和正常晚孕妇女外周血中TPA、sVCAM-1的浓度，并与子痫前期患者病情及新生儿体重进行相关分析。

In maize, the results indicated that the patterns of gene expression altered obviously in cross-fertilized kernels as compared to self-fertilized kernels, major difference of gene expression occurred in the qualitative level. Further analysis indicated that higher percentage of total differentially expressed cDNA was observed in highly heterotic hybrid than in non-heterotic hybrid.

对四个不同优势的玉米杂交和自交在种子发育前期基因表达研究表明，玉米杂交种子与自交种子在发育前期存在明显的基因表达差异，强优势的杂交组合与弱优势杂交组合之间表现差异的总cDNA比例存在极显著差异，进一步分析发现，杂交特异表达与杂种优势存在一定的正向关系。

Understand-ing the mechanism of protective immunity induced by irradiation-attenuated sporozoites will be helpful for the design of the efficient pre-erythrocytic malaria vaccine.

受疟原虫子孢子来源的限制和放射减毒程度控制的困难，放射减毒子孢子在实际应用中受到明显的限制，但是可作为研究红前期保护性免疫机制和红前期亚单位疫苗设计的重要模型。

Result shows that the MOD is significantly related to the atmospheric features in the previous winter with strong North Atlantic oscillation for early Meiyu onset and v.v..

研究结果表明江淮入梅的早晚与前期冬季北半球大型环流存在显著的相关：入梅早的年份，其前期冬季北大西洋涛动强，北半球只有一个强的极涡并位于格陵兰上空，相应东亚大槽弱；入梅晚的年份，则其前冬环流表现为，北大西洋涛动弱，北半球存在两个极涡，其中一个仍然位于格陵兰上空，而另一个则位于西伯利亚上空，相应东亚大槽较常年偏强。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。