转移的

The cognition for the mechanism and treatment of recurrence and metastasis has changed with the introduction of the cancer stem cell theory, which provides a new pathway to the control of the cancer recurrence and metastasis.

随着肿瘤干细胞学说的提出及确认，人们对肿瘤复发、转移机制和对策有了新的认识和期望，从而为恶性肿瘤治疗后的复发转移的预防提供了一个全新的途径。

Based on the characteristics above, this paper presents two graph-theory algorithms fast identifying the weakness of networks according to wide area measurement information such as pre-fault network topology and load flow, namely the algorithm of fast search for transmission section based graph theory and the algorithm of fast search for flow transferring Minimal Short Path.

基于潮流转移的上述特点，本文根据事故前的网络拓扑结构、潮流分布状态、输电元件物理参数与系统电压等级等广域测量信息，针对两种不同的网络结构分别提出了相应的快速识别网络薄弱环节的图论方法，即输电断面快速搜索算法与潮流转移最短路径快速搜索算法。

Methods Realtime fluorescence quantitive RTPCR was used to detect the expression level of Tiam1 mRNA in gastric cancer tissues of 66 cases, paracancerous tissues (over 3cm) of 66 cases and gastric benign lesion tissues of 11 cases. Meanwhile, CK18 was selected as the hallmarker for lymph node micrometastasis to detect the level of CK18 mRNA expression in 199 lymph nodes from 24 cases of gastric carcinomas diagnosed negative by pathologic examinations.

采用TaqMan探针实时荧光定量PCR方法，定量检测66例胃癌患者癌组织、癌旁组织及11例胃良性病变组织中的Tiam1 mRNA拷贝数，同时将CK18作为淋巴结微转移的标志基因，定量检测24例病理诊断无淋巴结转移的胃癌患者199枚淋巴结的CK18mRNA拷贝数。

Recently, accumulating evidence indicate that selectins are involved in the interaction among tumor cells, platelets and endothelial cells in the hematogenous metastasis.

近年来，有大量的证据表明，选择素在肿瘤转移的过程中介导经血液转移的肿瘤细胞与血小板及血管内皮细胞的粘附。

It was then introduced by gene pulser into acrystalliferous strain CryB and a recombinant strain CryB (pBMBZGC10) was obtained. Different fermentative solutions of recombinant strain were used for multi-spray on leaves of Brassica pekinesis, Ipomoea aquatica and Lycopersicon esculentum. Results by using fluorescent detection and PCR amplification revealed that cry1Ac10 gene could not been detected in roots, stems and leaves of plants tested. The cry1Ac10 gene was also not transferred into indigenous bacteria, actinomyces and fungi in soil.

苏云金芽胞杆菌标记重组菌株与杀虫基因水平转移的研究将重组菌株CryB（pBMBZGC10）的发酵液按浓度梯度分次进行喷洒小白菜、蕹菜和番茄作为供试植株，利用标记基因研究的结果表明：cry1Ac10基因没有向供试土壤细菌、真菌和放线菌转移，也未在植物的供试植物根、茎和叶中检测到该基因。

Objective To investigate the patterns of mesorectum lymph node mestastases of rectal cancer. Methods From September 2004 to September 2005, the total lymph nodes was examined by pathology and immunohistochemical staining.

结直肠癌发病率位于恶性肿瘤第三位，虽然目前的治疗较过去有了相当大的提高，但复发和转移仍然是治疗失败的主要原因，即使常规病理学检查未发现淋巴结转移的结直肠癌病人中5年内肿瘤复发率也可达到50％[1]。

Methods: The three lung cancer cell lines-A549(highly invasive human lung adenocarcinoma cell ), 95-D(highly metastatic human lung carcinoma cell), and SPC-A-1(lowly metastatic human lung adenocarcinoma cell) were cultured conventionally in vitro. When the cells covered the bottom of culture flask, we abstracted the protein with lysis solution containing RIPA and PMSF, and obtained RNA with RNeasy Mini Kit.

将三株肺癌细胞：高侵袭的肺腺癌细胞(A549)、高转移的肺癌细胞(95-D)、低转移的肺腺癌细胞(SPC-A-1)做常规细胞培养，待细胞长满瓶底后，用RIPA和PMSF组成的细胞裂解液提取细胞蛋白质，RNeasy Mini Ki提取RNA。

Simultaneously we prepared benzimidazolines with two methods by the reducton of benzimidazolium salts with NaBH_4 and Grignard addition with benzimidazolium salts. Thus we provided a new biomimic synthetic method for 9 kind of tetrahydro-β-carboline starting from carboxylic aicd and halid. A convenient synthetic method for preparing tetrahydro-β-carboline was provided.

本文以1，3-二甲基苯并咪唑碘盐和2-取代的1，3-二甲基苯并咪唑碘盐为原料，采用了NaBH_4还原和Grignard试剂加成两种方法，制备了9种1，3-二甲基苯并咪唑烷和2-取代的1，3-二甲基苯并咪唑烷作为四氢叶酸辅酶一碳单元转移新模型，在酸性条件下，以色胺作为接受一碳转移的亲核试剂，完成9种四氢-β-咔啉类化合物的新合成方法研究。

This paper reviews the research of horizontal gene transfer related to catabolic gene in biofilms system, and indicts that the dense community structure in biofilms increases the efficiency in horizontal gene transfer among bacteria.

阐述了生物膜系统中与降解基因有关的水平基因转移的研究进展，表明生物膜中致密的群落结构增加了细菌间水平基因转移的效率。

"Understanding this toggle switch might ultimately enable scientists to find ways to stop cells from metastasizing, which is the most deadly trait of cancer," said the study's lead investigator, Mariano Garcia-Blanco, M.D., Ph.D., professor of molecular genetics and microbiology.

&对这个开关的了解可能最终会使科学家们能够找到阻止细胞转移的方法，而转移是癌细胞最致命的特征。&研究的首席研究员Mariano Garcia-Blanco说（分子遗传学和微生物学博士）。

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。