Let n≥2 be a natural number,1≤p≤∞and X a Banach space.We prove that if X^(*)containsλ-uniformly copies of l^(k)^(p),then:P(^(n)X) contains cKλ^(n)-uniformly copies of■.in the case p^(*)>n(ii)P(^(n)X) contain...Let n≥2 be a natural number,1≤p≤∞and X a Banach space.We prove that if X^(*)containsλ-uniformly copies of l^(k)^(p),then:P(^(n)X) contains cKλ^(n)-uniformly copies of■.in the case p^(*)>n(ii)P(^(n)X) containsλ^(n)-uniformly copies of l^(k)_(∞)in the case p^(*)≤n.This complete a result of S.Dineen’s from 1995.展开更多
[Objective] Taqman Quantitative PCR technique was adopted to detect the copies of exogenous nos terminator in transgenic hybrid soybean.[Method] With soybean Lectin as the endogenous reference gene,and gene complex DN...[Objective] Taqman Quantitative PCR technique was adopted to detect the copies of exogenous nos terminator in transgenic hybrid soybean.[Method] With soybean Lectin as the endogenous reference gene,and gene complex DNA in non-GMO soybeans as the endogenous reference standard,the method of gradient dilution was used for separately calculate Ct value of endogenous reference gene and plasmid DNA and correlation standard curve equation of logarithm of copies,and then to calculate the copies of samples through substituting thus-obtained Ct into the standard curve equation.[Result] The standard curve equation of endogenous reference gene is y=-3.422x＋35.201,R2=0.998;and the standard curve equation of exogenous gene is y=-3.348x＋34.890,R2=0.999.Nos terminator and its lower boundary sequences in transgenic soybean is of single copy.[Conclusion] The study has provided a theoretical basis for determining exogenous gene copies in transgenic soybean.展开更多
Let X be a Banach space. If there exists a quotient space of X which is asymptotically isometric to l^1, then X contains complemented asymptotically isometric copies of l^1. Every infinite dimensional closed subspace ...Let X be a Banach space. If there exists a quotient space of X which is asymptotically isometric to l^1, then X contains complemented asymptotically isometric copies of l^1. Every infinite dimensional closed subspace of l1. contains a complemented subspace of l1 which is asymptotically isometric to l1. Let X be a separable Banach space such that X^＊ contains asymptotically isometric copies of lp （1 〈 p 〈∞）. Then there exists a quotient space of X which is asymptotically isometric to lq （1/p ＋ 1/q=1）. Complemented asymptotically isometric copies of co in K（X, Y） and W（X, Y） are discussed. Let X be a Gelfand-Phillips space. If X contains asymptotically isometric copies of co, it has to contain complemented asymptotically isometric copies of co.展开更多
Collecting silver artefacts has traditionally been a very popular hobby.Silver is addictive,therefore the number of potential collectors and investors appears to grow each year.Unfortunately,increases in the interest ...Collecting silver artefacts has traditionally been a very popular hobby.Silver is addictive,therefore the number of potential collectors and investors appears to grow each year.Unfortunately,increases in the interest and buying potentials resulted in a number of forgeries manufactured and introduced to the open antique market.The items such as early silver candlesticks dictate a very high price,for many high quality fakes show very good appearances and matching similarities with originals.Such copies are traditionally manufactured by casting using the original items as patterns.Small details and variances in design features,position and shape of hallmarks,including the final surface quality are usual features to distinguish the fakes from the originals.This paper presents results of a study conducted on several silver candlesticks,including two artefacts bearing features of those produced in the mid 18th century,one original Italian candelabrum from Fascist era,and small candlesticks made in the early 20th century.Also,the paper presents some interesting contemporary coins-replicas of many those produced in different countries.The coins were offered for sale by unscrupulous dealers via auctions and e-bays.Finally the main results and findings from this study are discussed from a manufacturing point of view,such as fabrication technology,surface quality and hallmarks,which will help the collectors,dealers and investors to detect and avoid forgeries.展开更多
丝氨酸整合因子(serine incorporator,SERINC)是一种与脂质合成有关的跨膜蛋白,其中SERINC2与癌症发生进展中的多种生物学过程相关。胰腺癌(pancreatic adenocarcinoma,PAAD)作为一种高度恶性的肿瘤,预后极差且缺乏有效的生物标志物,目...丝氨酸整合因子(serine incorporator,SERINC)是一种与脂质合成有关的跨膜蛋白,其中SERINC2与癌症发生进展中的多种生物学过程相关。胰腺癌(pancreatic adenocarcinoma,PAAD)作为一种高度恶性的肿瘤,预后极差且缺乏有效的生物标志物,目前尚无文献报道SERINC2与泛癌及肿瘤免疫的关系。因此,基于SERINC2预测PAAD的预后,可为开发以SERINC2为核心的肿瘤诊断标志物及免疫治疗策略奠定基础。本研究基于癌症基因组图谱(The Cancer Genome Atlas,TCGA)、基因型-组织表达(Genotype-Tissue Expression,GTEx)和人类蛋白图谱(Human Protein Atlas,HPA)数据库中SERINC2在正常和肿瘤组织中的表达水平数据,证实SERINC2在多种癌症中异常高表达,且与临床病理分期显著相关(P<0.05)。通过基因组稳定性相关癌症分析(Genomic Stability Associated Cancer Analysis,GSCA)数据库分析拷贝数变异和甲基化对SERINC2表达的影响,发现拷贝数变异与SERINC2表达呈正相关,而甲基化水平则呈负相关(P<0.05)。使用TCGA数据库进一步分析SERINC2表达水平与免疫细胞浸润和肿瘤微环境评分的相关性,发现SERINC2表达与免疫检查点基因、免疫治疗、免疫浸润显著相关,并与肿瘤微环境评分在多数癌种中负相关(P<0.05)。使用“limma”包筛选出25个差异基因,构建的PAAD预后模型可有效区分高危/低危患者的生存预后。通过54例PAAD患者的免疫组化(immunohistochemical,IHC)验证SERINC2高表达与PAAD不良预后显著相关(中位总体生存期:19.67 vs 50.52个月,P=0.029)。上述结果表明,本研究为开发以SERINC2为核心的肿瘤诊断标志物及免疫治疗策略奠定了基础。展开更多
文摘Let n≥2 be a natural number,1≤p≤∞and X a Banach space.We prove that if X^(*)containsλ-uniformly copies of l^(k)^(p),then:P(^(n)X) contains cKλ^(n)-uniformly copies of■.in the case p^(*)>n(ii)P(^(n)X) containsλ^(n)-uniformly copies of l^(k)_(∞)in the case p^(*)≤n.This complete a result of S.Dineen’s from 1995.
基金Funded by Program of Technology Bureau of Harbin(2010RFQXN101)Sub-project of Transgenic Significant Specific Project(2008ZX08012-001)~~
文摘[Objective] Taqman Quantitative PCR technique was adopted to detect the copies of exogenous nos terminator in transgenic hybrid soybean.[Method] With soybean Lectin as the endogenous reference gene,and gene complex DNA in non-GMO soybeans as the endogenous reference standard,the method of gradient dilution was used for separately calculate Ct value of endogenous reference gene and plasmid DNA and correlation standard curve equation of logarithm of copies,and then to calculate the copies of samples through substituting thus-obtained Ct into the standard curve equation.[Result] The standard curve equation of endogenous reference gene is y=-3.422x＋35.201,R2=0.998;and the standard curve equation of exogenous gene is y=-3.348x＋34.890,R2=0.999.Nos terminator and its lower boundary sequences in transgenic soybean is of single copy.[Conclusion] The study has provided a theoretical basis for determining exogenous gene copies in transgenic soybean.
基金Supported by NSFC(10271060)NSFC(10171014) the Doctoral Programme Foundation of Institution of Higher Education(20010055013).
文摘Let X be a Banach space. If there exists a quotient space of X which is asymptotically isometric to l^1, then X contains complemented asymptotically isometric copies of l^1. Every infinite dimensional closed subspace of l1. contains a complemented subspace of l1 which is asymptotically isometric to l1. Let X be a separable Banach space such that X^＊ contains asymptotically isometric copies of lp （1 〈 p 〈∞）. Then there exists a quotient space of X which is asymptotically isometric to lq （1/p ＋ 1/q=1）. Complemented asymptotically isometric copies of co in K（X, Y） and W（X, Y） are discussed. Let X be a Gelfand-Phillips space. If X contains asymptotically isometric copies of co, it has to contain complemented asymptotically isometric copies of co.
文摘Collecting silver artefacts has traditionally been a very popular hobby.Silver is addictive,therefore the number of potential collectors and investors appears to grow each year.Unfortunately,increases in the interest and buying potentials resulted in a number of forgeries manufactured and introduced to the open antique market.The items such as early silver candlesticks dictate a very high price,for many high quality fakes show very good appearances and matching similarities with originals.Such copies are traditionally manufactured by casting using the original items as patterns.Small details and variances in design features,position and shape of hallmarks,including the final surface quality are usual features to distinguish the fakes from the originals.This paper presents results of a study conducted on several silver candlesticks,including two artefacts bearing features of those produced in the mid 18th century,one original Italian candelabrum from Fascist era,and small candlesticks made in the early 20th century.Also,the paper presents some interesting contemporary coins-replicas of many those produced in different countries.The coins were offered for sale by unscrupulous dealers via auctions and e-bays.Finally the main results and findings from this study are discussed from a manufacturing point of view,such as fabrication technology,surface quality and hallmarks,which will help the collectors,dealers and investors to detect and avoid forgeries.
文摘丝氨酸整合因子(serine incorporator,SERINC)是一种与脂质合成有关的跨膜蛋白,其中SERINC2与癌症发生进展中的多种生物学过程相关。胰腺癌(pancreatic adenocarcinoma,PAAD)作为一种高度恶性的肿瘤,预后极差且缺乏有效的生物标志物,目前尚无文献报道SERINC2与泛癌及肿瘤免疫的关系。因此,基于SERINC2预测PAAD的预后,可为开发以SERINC2为核心的肿瘤诊断标志物及免疫治疗策略奠定基础。本研究基于癌症基因组图谱(The Cancer Genome Atlas,TCGA)、基因型-组织表达(Genotype-Tissue Expression,GTEx)和人类蛋白图谱(Human Protein Atlas,HPA)数据库中SERINC2在正常和肿瘤组织中的表达水平数据,证实SERINC2在多种癌症中异常高表达,且与临床病理分期显著相关(P<0.05)。通过基因组稳定性相关癌症分析(Genomic Stability Associated Cancer Analysis,GSCA)数据库分析拷贝数变异和甲基化对SERINC2表达的影响,发现拷贝数变异与SERINC2表达呈正相关,而甲基化水平则呈负相关(P<0.05)。使用TCGA数据库进一步分析SERINC2表达水平与免疫细胞浸润和肿瘤微环境评分的相关性,发现SERINC2表达与免疫检查点基因、免疫治疗、免疫浸润显著相关,并与肿瘤微环境评分在多数癌种中负相关(P<0.05)。使用“limma”包筛选出25个差异基因,构建的PAAD预后模型可有效区分高危/低危患者的生存预后。通过54例PAAD患者的免疫组化(immunohistochemical,IHC)验证SERINC2高表达与PAAD不良预后显著相关(中位总体生存期:19.67 vs 50.52个月,P=0.029)。上述结果表明,本研究为开发以SERINC2为核心的肿瘤诊断标志物及免疫治疗策略奠定了基础。
