My investigation will serve two purposes. First, I shall investigate the function of the subclauses in the corpus in relation to their complexity, and I shall establish whether there is a correlation between sentence ...My investigation will serve two purposes. First, I shall investigate the function of the subclauses in the corpus in relation to their complexity, and I shall establish whether there is a correlation between sentence length and sentence complexity.Second, I shall analyse the complexity of the subclauses collected from the two sections and compare the results from these sections, focusing on finite subclauses and non-finite subclauses. I hope to be able to point out some differences in style between the news and sports sections concerning the use of subordinate clauses in various syntactic functions in order to examine how the choice of linguistic structures differs in different sections of The Times.展开更多
目的:探讨胃癌细胞系MKN中HLA-Ⅰ类抗原表达水平异常的分子机制。方法:以胃癌细胞系BGC823、MGC803和SGC7901为对照,利用流式细胞仪检测细胞表面HLA-Ⅰ类复合物的表达情况,W estern b lot检测HLA-Ⅰ类分子重链及轻链表达情况,半定量RT-...目的:探讨胃癌细胞系MKN中HLA-Ⅰ类抗原表达水平异常的分子机制。方法:以胃癌细胞系BGC823、MGC803和SGC7901为对照,利用流式细胞仪检测细胞表面HLA-Ⅰ类复合物的表达情况,W estern b lot检测HLA-Ⅰ类分子重链及轻链表达情况,半定量RT-PCR检测HLA-Ⅰ类分子重链、轻链和抗原加工分子mRNA水平的表达情况,并利用HLA基因区域的微卫星序列检测MKN细胞HLA基因在DNA水平的完整性。结果:胃癌细胞系MKN表面HLA-Ⅰ类复合物表达降低,重链A及B/C位点蛋白无表达而轻链表达无异常。在mRNA水平,胃癌细胞系MKN存在重链A、B、C各位点和抗原加工分子TAP1、LMP2、Tapasin、PA28β的表达缺失。微卫星DNA扩增结果初步显示,MKN细胞无HLA基因区域DNA的大片段丢失。结论:胃癌细胞系MKN HLA-Ⅰ类分子复合物表达降低可能是由HLA-Ⅰ类分子重链及其加工分子在转录水平改变而引起的。展开更多
文摘My investigation will serve two purposes. First, I shall investigate the function of the subclauses in the corpus in relation to their complexity, and I shall establish whether there is a correlation between sentence length and sentence complexity.Second, I shall analyse the complexity of the subclauses collected from the two sections and compare the results from these sections, focusing on finite subclauses and non-finite subclauses. I hope to be able to point out some differences in style between the news and sports sections concerning the use of subordinate clauses in various syntactic functions in order to examine how the choice of linguistic structures differs in different sections of The Times.
基金National Basic Research and Development Program(2009CB119200)Key Projects in the National Science & Technology Pillar Program in the Eleventh Five-Year Plan Period(2006BAD08A18)Liaoning Entry-Exit Inspection and Quarantine Bureau Scientific Research Item
文摘目的:探讨胃癌细胞系MKN中HLA-Ⅰ类抗原表达水平异常的分子机制。方法:以胃癌细胞系BGC823、MGC803和SGC7901为对照,利用流式细胞仪检测细胞表面HLA-Ⅰ类复合物的表达情况,W estern b lot检测HLA-Ⅰ类分子重链及轻链表达情况,半定量RT-PCR检测HLA-Ⅰ类分子重链、轻链和抗原加工分子mRNA水平的表达情况,并利用HLA基因区域的微卫星序列检测MKN细胞HLA基因在DNA水平的完整性。结果:胃癌细胞系MKN表面HLA-Ⅰ类复合物表达降低,重链A及B/C位点蛋白无表达而轻链表达无异常。在mRNA水平,胃癌细胞系MKN存在重链A、B、C各位点和抗原加工分子TAP1、LMP2、Tapasin、PA28β的表达缺失。微卫星DNA扩增结果初步显示,MKN细胞无HLA基因区域DNA的大片段丢失。结论:胃癌细胞系MKN HLA-Ⅰ类分子复合物表达降低可能是由HLA-Ⅰ类分子重链及其加工分子在转录水平改变而引起的。
