H2La2Ti3O10/CdS nanocomposite with er photoactivity was synthesized by a stepwise exchange process from H2La2Ti3O10, which was obtained by H^＋ -exchanging reaction of H2La2Ti3O10 with HCl other than the normally used...H2La2Ti3O10/CdS nanocomposite with er photoactivity was synthesized by a stepwise exchange process from H2La2Ti3O10, which was obtained by H^＋ -exchanging reaction of H2La2Ti3O10 with HCl other than the normally used HNO3. The pillaring process was investigated by XRD, TEM, FT-IR and BET methods. The photocatalytic decomposition of aniline was used as the model system to evaluate the photochemical properties of H2La2Ti3O10/CdS,H2La2Ti3O10 and K2La2Ti3O10. It is found that the photoactivity of layered H2La2Ti3O10 is greatly improved by the intercalation of CdS in the interlayer. In general, the excellent photoactivity of the H2La2Ti3O10/CdS nanocomposite might be attributing to the extremely small particle size of incorporated CdS and good contact between CdS and La2Ti3O10^2- layers. On the other hand, the coupling of two semiconductor particles with different energy gap is useful to achieve effective charge separation. In H2La2Ti3O10/CdS, a photo-generated electron can transfer from CdS to the La2Ti3O10^2- layer, while the holes remain in the CdS particles. This helps to diffuse the electrons and holes before reaching the interface, and the holes and electrons can be effectively captured by the electrolyte in the solution. Simuhaneously, the optimal operating condition of photodecomposition aniline was investigated.展开更多
目的在中国汉族肺结核患者中进行全基因组关联分析(genome-wide association study,GWAS),以探究与肺结核患者发生乙型肝炎(乙肝)病毒共感染密切相关的单基因位点突变。方法利用Illumina Human Omni Express基因芯片分型实验平台对2013...目的在中国汉族肺结核患者中进行全基因组关联分析(genome-wide association study,GWAS),以探究与肺结核患者发生乙型肝炎(乙肝)病毒共感染密切相关的单基因位点突变。方法利用Illumina Human Omni Express基因芯片分型实验平台对2013年3月—2018年3月间纳入的946例肺结核患者进行全基因组基因分型。经质量控制后共703例单一结核感染患者和53例结核乙肝合并感染患者的389 972个单核苷酸多态性(single nucleotide polymorphism,SNP)纳入后续关联分析。结果统计学关联信号最强的SNP是位于8p23.1染色体上的rs118122819(P=2.923×10-12,比值比=7.933),其他潜在的易感基因还包括CDH4(rs73309833)、MARCH1(rs3797020)和DNER(rs13393112)等。rs118122819与rs4840365之间存在强连锁不平衡关系(D’=0.88,r2=0.76),而rs4840365则位于MFHAS1基因区域。结论该研究为结核患者发生乙肝共感染的易感基因位点的存在提供了证据,可为结核乙肝共感染的机制研究、疾病预防和治疗对策提供重要线索。但必须在更大规模的研究中复制和验证这些关联。展开更多
OBJECTIVE: To explore the value and factors influencing the maintenance of valid Traditional Chinese Medicine compound prescription patents for the management of mammary gland hyperplasia. METHODS: The State Intellect...OBJECTIVE: To explore the value and factors influencing the maintenance of valid Traditional Chinese Medicine compound prescription patents for the management of mammary gland hyperplasia. METHODS: The State Intellectual Property Office Patents Database, China Patent Information Center Patents Database, Soopat Patent Search Platform, and CNIPR Search Platform of Chinese and Foreign Patent Database were searched to identify Traditional Chinese Medicine compound prescription patents for mammary gland hyperplasia that had been maintained for at least 5 years. Logistic regression analysis was used to detect the factors influencing the maintenance of valid patents. RESULTS: From 1 January 1993 to 31 December 2019, a total of 1228, Traditional Chinese Medicine compound prescription patents for mammary gland hyperplasia were authorized. Of these applications, 381 patents were granted and only 176 patents were maintained for more than 5 years. The five independent variables assessed in this study all had significant explanatory functions. CONCLUSIONS: The maintenance of valid patents for Traditional Chinese Medicine compound prescriptions for treating mammary gland hyperplasia is of great importance. The maintenance of such patents depends on many factors, such as the concentration of effective herbs, number of dependent claims, provision of new dosage forms and detailed experimental data, and transfer of patent rights.展开更多
文摘H2La2Ti3O10/CdS nanocomposite with er photoactivity was synthesized by a stepwise exchange process from H2La2Ti3O10, which was obtained by H^＋ -exchanging reaction of H2La2Ti3O10 with HCl other than the normally used HNO3. The pillaring process was investigated by XRD, TEM, FT-IR and BET methods. The photocatalytic decomposition of aniline was used as the model system to evaluate the photochemical properties of H2La2Ti3O10/CdS,H2La2Ti3O10 and K2La2Ti3O10. It is found that the photoactivity of layered H2La2Ti3O10 is greatly improved by the intercalation of CdS in the interlayer. In general, the excellent photoactivity of the H2La2Ti3O10/CdS nanocomposite might be attributing to the extremely small particle size of incorporated CdS and good contact between CdS and La2Ti3O10^2- layers. On the other hand, the coupling of two semiconductor particles with different energy gap is useful to achieve effective charge separation. In H2La2Ti3O10/CdS, a photo-generated electron can transfer from CdS to the La2Ti3O10^2- layer, while the holes remain in the CdS particles. This helps to diffuse the electrons and holes before reaching the interface, and the holes and electrons can be effectively captured by the electrolyte in the solution. Simuhaneously, the optimal operating condition of photodecomposition aniline was investigated.
文摘目的在中国汉族肺结核患者中进行全基因组关联分析(genome-wide association study,GWAS),以探究与肺结核患者发生乙型肝炎(乙肝)病毒共感染密切相关的单基因位点突变。方法利用Illumina Human Omni Express基因芯片分型实验平台对2013年3月—2018年3月间纳入的946例肺结核患者进行全基因组基因分型。经质量控制后共703例单一结核感染患者和53例结核乙肝合并感染患者的389 972个单核苷酸多态性(single nucleotide polymorphism,SNP)纳入后续关联分析。结果统计学关联信号最强的SNP是位于8p23.1染色体上的rs118122819(P=2.923×10-12,比值比=7.933),其他潜在的易感基因还包括CDH4(rs73309833)、MARCH1(rs3797020)和DNER(rs13393112)等。rs118122819与rs4840365之间存在强连锁不平衡关系(D’=0.88,r2=0.76),而rs4840365则位于MFHAS1基因区域。结论该研究为结核患者发生乙肝共感染的易感基因位点的存在提供了证据,可为结核乙肝共感染的机制研究、疾病预防和治疗对策提供重要线索。但必须在更大规模的研究中复制和验证这些关联。
基金Supported by National Natural Science Foundation:Modeling and Analysis of Patent Compatibility Law of Chinese Medical Compounds:Take Breast Hyperplasia as an Example (No. 81904321)Research and Innovation Team of Hebei University of Chinese Medicine:Research on Data Mining of Ancient and Modern Chinese Medical Literature (No. 3010304022013)。
文摘OBJECTIVE: To explore the value and factors influencing the maintenance of valid Traditional Chinese Medicine compound prescription patents for the management of mammary gland hyperplasia. METHODS: The State Intellectual Property Office Patents Database, China Patent Information Center Patents Database, Soopat Patent Search Platform, and CNIPR Search Platform of Chinese and Foreign Patent Database were searched to identify Traditional Chinese Medicine compound prescription patents for mammary gland hyperplasia that had been maintained for at least 5 years. Logistic regression analysis was used to detect the factors influencing the maintenance of valid patents. RESULTS: From 1 January 1993 to 31 December 2019, a total of 1228, Traditional Chinese Medicine compound prescription patents for mammary gland hyperplasia were authorized. Of these applications, 381 patents were granted and only 176 patents were maintained for more than 5 years. The five independent variables assessed in this study all had significant explanatory functions. CONCLUSIONS: The maintenance of valid patents for Traditional Chinese Medicine compound prescriptions for treating mammary gland hyperplasia is of great importance. The maintenance of such patents depends on many factors, such as the concentration of effective herbs, number of dependent claims, provision of new dosage forms and detailed experimental data, and transfer of patent rights.
