目的:观察血液透析(H D)与血液透析滤过(H D F)对血管活性物质的影响。方法:20例患者每周H D10～15h,每周或半个月行一次H D F,分别于患者行H D,H D F前后检测一氧化氮(N O)、内皮素(E T-1)、醛固酮(A LD)、肾素(PR A)、血管紧张素Ⅱ(A...目的:观察血液透析(H D)与血液透析滤过(H D F)对血管活性物质的影响。方法:20例患者每周H D10～15h,每周或半个月行一次H D F,分别于患者行H D,H D F前后检测一氧化氮(N O)、内皮素(E T-1)、醛固酮(A LD)、肾素(PR A)、血管紧张素Ⅱ(A T-Ⅱ)。结果:H D、H D F后N O均下降(P<0.001),两组降幅比较(P<0.001);H D后E T-1略升高,H D F则降低,两组比较P<0.001;PR A在H D后升高H D F组下降;A T-Ⅱ在H D及H D F组均升高(P<0.001),两组比较P>0.05;A LD在H D、H D F后均下降(P<0.001),降幅比较以H D F为著(P<0.001)。结论:H D、H D F对血管活性物质的影响与透析相关性高血压的作用结论难趋一致,有待进一步研究。展开更多
Efficient real time data exchange over the Internet plays a crucial role in the successful application of web-based systems. In this paper, a data transfer mechanism over the Internet is proposed for real time web bas...Efficient real time data exchange over the Internet plays a crucial role in the successful application of web-based systems. In this paper, a data transfer mechanism over the Internet is proposed for real time web based applications. The mechanism incorporates the eXtensible Markup Language （XML） and Hierarchical Data Format （HDF） to provide a flexible and efficient data format. Heterogeneous transfer data is classified into light and heavy data, which are stored using XML and HDF respectively; the HDF data format is then mapped to Java Document Object Model （JDOM） objects in XML in the Java environment. These JDOM data objects are sent across computer networks with the support of the Java Remote Method Invocation （RMI） data transfer infrastructure. Client＇s defined data priority levels are implemented in RMI, which guides a server to transfer data objects at different priorities. A remote monitoring system for an industrial reactor process simulator is used as a case study to illustrate the proposed data transfer mechanism.展开更多
文摘目的:观察血液透析(H D)与血液透析滤过(H D F)对血管活性物质的影响。方法:20例患者每周H D10～15h,每周或半个月行一次H D F,分别于患者行H D,H D F前后检测一氧化氮(N O)、内皮素(E T-1)、醛固酮(A LD)、肾素(PR A)、血管紧张素Ⅱ(A T-Ⅱ)。结果:H D、H D F后N O均下降(P<0.001),两组降幅比较(P<0.001);H D后E T-1略升高,H D F则降低,两组比较P<0.001;PR A在H D后升高H D F组下降;A T-Ⅱ在H D及H D F组均升高(P<0.001),两组比较P>0.05;A LD在H D、H D F后均下降(P<0.001),降幅比较以H D F为著(P<0.001)。结论:H D、H D F对血管活性物质的影响与透析相关性高血压的作用结论难趋一致,有待进一步研究。
文摘Efficient real time data exchange over the Internet plays a crucial role in the successful application of web-based systems. In this paper, a data transfer mechanism over the Internet is proposed for real time web based applications. The mechanism incorporates the eXtensible Markup Language （XML） and Hierarchical Data Format （HDF） to provide a flexible and efficient data format. Heterogeneous transfer data is classified into light and heavy data, which are stored using XML and HDF respectively; the HDF data format is then mapped to Java Document Object Model （JDOM） objects in XML in the Java environment. These JDOM data objects are sent across computer networks with the support of the Java Remote Method Invocation （RMI） data transfer infrastructure. Client＇s defined data priority levels are implemented in RMI, which guides a server to transfer data objects at different priorities. A remote monitoring system for an industrial reactor process simulator is used as a case study to illustrate the proposed data transfer mechanism.
