This paper aims to present the experience gathered in the Italian alpine city of Bolzano within the project“Bolzano Traffic”whose goal is the introduction of an experimental open ITS platform for local service provi...This paper aims to present the experience gathered in the Italian alpine city of Bolzano within the project“Bolzano Traffic”whose goal is the introduction of an experimental open ITS platform for local service providers,fostering the diffusion of advanced traveller information services and the future deployment of cooperative mobility systems in the region.Several end-users applications targeted to the needs of different user groups have been developed in collaboration with local companies and research centers;a partnership with the EU Co-Cities project has been activated as well.The implemented services rely on real-time travel and traffic information collected by urban traffic monitoring systems or published by local stakeholders(e.g.public transportation operators).An active involvement of end-users,who have recently started testing these demo applications for free,is actually on-going.展开更多
Objective Corynebacterium crenatum MT, a mutant from C. crenatum AS 1.542 with a lethal argR gene, exhibits high arginine production. To confirm the effect of ArgR on arginine biosynthesis in C. crenatum, an intact ar...Objective Corynebacterium crenatum MT, a mutant from C. crenatum AS 1.542 with a lethal argR gene, exhibits high arginine production. To confirm the effect of ArgR on arginine biosynthesis in C. crenatum, an intact argR gene from wild-type AS 1.542 was introduced into C. crenatum MT, resulting in C. crenatum MT. sp, and the changes of transcriptional levels of the arginine biosynthetic genes and arginine production were compared between the mutant strain and the recombinant strain. Methods Quantitative real-time polymerase chain reaction was employed to analyze the changes of the related genes at the transcriptional level, electrophoretic mobility shift assays were used to determine ArgR binding with the argCJBDF, argGH, and carAB promoter regions, and arginine production was determined with an automated amino acid analyzer. Results Arginine production assays showed a 69.9% reduction in arginine from 9.01±0.22 mg/mL in C. crenatum MT to 2.71±0.13 mg/mL （P〈0.05） in C. crenatum MT. sp. The argC, argB, argD, argF, argJ, argG, and carA genes were down-regulated significantly in C. crenatum MT. sp compared with those in its parental C. crenatum MT strain. The electrophoretic mobility shift assays showed that the promoter regions were directly bound to the ArgR protein. Conclusion The arginine biosynthetic genes in C crenatum are clearly controlled by the regulator ArgR, and intact ArgR in C. crenatum MT results in a significant descrease in production. negative arginine production.展开更多
目的检测高迁移率族蛋白B1(HMGB1)在非小细胞肺癌(NSCLC)组织中的表达,探讨其与临床病理学特征的关系。方法采用Real time RT-PCR法及免疫组织化学染色法检测64例NSCLC组织及20例癌旁正常肺组织中HMGB1mRNA和蛋白表达,并分析与临床病理...目的检测高迁移率族蛋白B1(HMGB1)在非小细胞肺癌(NSCLC)组织中的表达,探讨其与临床病理学特征的关系。方法采用Real time RT-PCR法及免疫组织化学染色法检测64例NSCLC组织及20例癌旁正常肺组织中HMGB1mRNA和蛋白表达,并分析与临床病理资料的关系。结果 NSCLC组织中HMGB1阳性率显著高于正常肺组织,HMGB1的平均光密度值和HMGB1mRNA的相对转录水平均显著高于正常肺组织,差异均有统计学意义(P<0.01)。HMGB1在鳞癌组织中的平均光密度值显著高于腺癌组织,在有淋巴结转移NSCLC组织中的平均光密度值显著高于无淋巴结转移NSCLC组织,差异均有统计学意义(P<0.01和P<0.05)。HMGB1在组织学低分化组表达高于高分化组,随着临床分期增高HMGB1表达升高。HMGB1在NSCLC组织中的表达与患者年龄、性别无关。结论 HMGB1高表达可能与NSCLC的发生、发展及预后不良有关,检测HMGB1表达水平对NSCLC早期诊断及预后的综合评价有一定指导意义。展开更多
文摘This paper aims to present the experience gathered in the Italian alpine city of Bolzano within the project“Bolzano Traffic”whose goal is the introduction of an experimental open ITS platform for local service providers,fostering the diffusion of advanced traveller information services and the future deployment of cooperative mobility systems in the region.Several end-users applications targeted to the needs of different user groups have been developed in collaboration with local companies and research centers;a partnership with the EU Co-Cities project has been activated as well.The implemented services rely on real-time travel and traffic information collected by urban traffic monitoring systems or published by local stakeholders(e.g.public transportation operators).An active involvement of end-users,who have recently started testing these demo applications for free,is actually on-going.
基金supported by Natural Science Foundation of China,No.1360219 and No.30960012
文摘Objective Corynebacterium crenatum MT, a mutant from C. crenatum AS 1.542 with a lethal argR gene, exhibits high arginine production. To confirm the effect of ArgR on arginine biosynthesis in C. crenatum, an intact argR gene from wild-type AS 1.542 was introduced into C. crenatum MT, resulting in C. crenatum MT. sp, and the changes of transcriptional levels of the arginine biosynthetic genes and arginine production were compared between the mutant strain and the recombinant strain. Methods Quantitative real-time polymerase chain reaction was employed to analyze the changes of the related genes at the transcriptional level, electrophoretic mobility shift assays were used to determine ArgR binding with the argCJBDF, argGH, and carAB promoter regions, and arginine production was determined with an automated amino acid analyzer. Results Arginine production assays showed a 69.9% reduction in arginine from 9.01±0.22 mg/mL in C. crenatum MT to 2.71±0.13 mg/mL （P〈0.05） in C. crenatum MT. sp. The argC, argB, argD, argF, argJ, argG, and carA genes were down-regulated significantly in C. crenatum MT. sp compared with those in its parental C. crenatum MT strain. The electrophoretic mobility shift assays showed that the promoter regions were directly bound to the ArgR protein. Conclusion The arginine biosynthetic genes in C crenatum are clearly controlled by the regulator ArgR, and intact ArgR in C. crenatum MT results in a significant descrease in production. negative arginine production.
文摘目的检测高迁移率族蛋白B1(HMGB1)在非小细胞肺癌(NSCLC)组织中的表达,探讨其与临床病理学特征的关系。方法采用Real time RT-PCR法及免疫组织化学染色法检测64例NSCLC组织及20例癌旁正常肺组织中HMGB1mRNA和蛋白表达,并分析与临床病理资料的关系。结果 NSCLC组织中HMGB1阳性率显著高于正常肺组织,HMGB1的平均光密度值和HMGB1mRNA的相对转录水平均显著高于正常肺组织,差异均有统计学意义(P<0.01)。HMGB1在鳞癌组织中的平均光密度值显著高于腺癌组织,在有淋巴结转移NSCLC组织中的平均光密度值显著高于无淋巴结转移NSCLC组织,差异均有统计学意义(P<0.01和P<0.05)。HMGB1在组织学低分化组表达高于高分化组,随着临床分期增高HMGB1表达升高。HMGB1在NSCLC组织中的表达与患者年龄、性别无关。结论 HMGB1高表达可能与NSCLC的发生、发展及预后不良有关,检测HMGB1表达水平对NSCLC早期诊断及预后的综合评价有一定指导意义。
