本文介绍在Internet环境中远程检索Microsoft Internet Information Server（MIIS）提供的数据库的几种方法。它们是：CGI Script 、ISAPI Dynamic Library 、ASP和IDC Filter。文中提供了对每种方法运行速度的研究测试结果，并向实用...本文介绍在Internet环境中远程检索Microsoft Internet Information Server（MIIS）提供的数据库的几种方法。它们是：CGI Script 、ISAPI Dynamic Library 、ASP和IDC Filter。文中提供了对每种方法运行速度的研究测试结果，并向实用系统设计者提出了使用这些方法的一些建议。展开更多
所谓远程信息检索(Distance Information Retrieval),就是用户通过电话网或计算机网络检索异地的数据库资源,实现信息的高速传递与打印功能。计算机技术、通信技术及网络技术的飞速发展,使信息的检索手段发生了质的飞跃,而传统的信息检...所谓远程信息检索(Distance Information Retrieval),就是用户通过电话网或计算机网络检索异地的数据库资源,实现信息的高速传递与打印功能。计算机技术、通信技术及网络技术的飞速发展,使信息的检索手段发生了质的飞跃,而传统的信息检索手段受到了面向最终用户的信息服务系统的竞争与挑战,面向最终用户,寻找新的模式,进行重新设计,实现网络化信息服务,是当今世界范围的信息行业中出现的新趋势。展开更多
Background Telehealth interventions （THI） were associated with lower levels of cardiovascular risk factors in adults, whereas the effect of THI on cardiovascular disease （CVD） still remains controversial. A meta-a...Background Telehealth interventions （THI） were associated with lower levels of cardiovascular risk factors in adults, whereas the effect of THI on cardiovascular disease （CVD） still remains controversial. A meta-analysis was conducted to summarize the evidence from randomized controlled trials （RCT） which investigated potential impact of THI on the incidence of CVD in patients with or without prior CVD. Methods PubMed, EmBase, and the Cochrane Library were searched to identify RCTs to fit our analysis through December 2016. Relative risk （RR） with its 95% confidence interval （CI） was used to measure the effect of THI using a random-effect model. Sensitivity analysis, subgroup analysis, heterogeneity tests, and tests for publication bias were also conducted. Results Eight RCTs were included and with a total of 1635 individuals. The summarized results indicated that participants who received THI showed a significant reduction of the CVD incidence as compared with usual care （RR： 0.59; 95% CI： 0.47-0.74; P 〈 0.001）. Furthermore, the effect of THI was greater in patients with history ofCVD （RR： 0.55; 95% CI： 0.44-0.70; P 〈 0.001） than in patients without history ofCVD （RR： 0.99; 95% CI： 0.51-1.94; P = 0.977）. Sensitivity analysis suggested that the intervention effect persisted and the conclusion was not changed. Subgroup analysis indi- cated mean age, study quality might play an important role on the risk of CVD. Conclusions The findings of this study indicated THI could reduce the recurrence of CVD. Further large-scale trials are needed to verify the effect of THI on CVD in healthy individuals.展开更多
文摘本文介绍在Internet环境中远程检索Microsoft Internet Information Server（MIIS）提供的数据库的几种方法。它们是：CGI Script 、ISAPI Dynamic Library 、ASP和IDC Filter。文中提供了对每种方法运行速度的研究测试结果，并向实用系统设计者提出了使用这些方法的一些建议。
文摘所谓远程信息检索(Distance Information Retrieval),就是用户通过电话网或计算机网络检索异地的数据库资源,实现信息的高速传递与打印功能。计算机技术、通信技术及网络技术的飞速发展,使信息的检索手段发生了质的飞跃,而传统的信息检索手段受到了面向最终用户的信息服务系统的竞争与挑战,面向最终用户,寻找新的模式,进行重新设计,实现网络化信息服务,是当今世界范围的信息行业中出现的新趋势。
文摘Background Telehealth interventions （THI） were associated with lower levels of cardiovascular risk factors in adults, whereas the effect of THI on cardiovascular disease （CVD） still remains controversial. A meta-analysis was conducted to summarize the evidence from randomized controlled trials （RCT） which investigated potential impact of THI on the incidence of CVD in patients with or without prior CVD. Methods PubMed, EmBase, and the Cochrane Library were searched to identify RCTs to fit our analysis through December 2016. Relative risk （RR） with its 95% confidence interval （CI） was used to measure the effect of THI using a random-effect model. Sensitivity analysis, subgroup analysis, heterogeneity tests, and tests for publication bias were also conducted. Results Eight RCTs were included and with a total of 1635 individuals. The summarized results indicated that participants who received THI showed a significant reduction of the CVD incidence as compared with usual care （RR： 0.59; 95% CI： 0.47-0.74; P 〈 0.001）. Furthermore, the effect of THI was greater in patients with history ofCVD （RR： 0.55; 95% CI： 0.44-0.70; P 〈 0.001） than in patients without history ofCVD （RR： 0.99; 95% CI： 0.51-1.94; P = 0.977）. Sensitivity analysis suggested that the intervention effect persisted and the conclusion was not changed. Subgroup analysis indi- cated mean age, study quality might play an important role on the risk of CVD. Conclusions The findings of this study indicated THI could reduce the recurrence of CVD. Further large-scale trials are needed to verify the effect of THI on CVD in healthy individuals.
