随着中国铁塔智联业务的迅速发展,其专业化维护能力不足的问题也逐步凸显。其中,故障发现不及时、故障定位困难、排障滞后等,已成为智联业务系统运维过程中亟待解决的痛点问题,特别是在设备掉线的情况下,无法实现快速诊断和故障定位,存...随着中国铁塔智联业务的迅速发展,其专业化维护能力不足的问题也逐步凸显。其中,故障发现不及时、故障定位困难、排障滞后等,已成为智联业务系统运维过程中亟待解决的痛点问题,特别是在设备掉线的情况下,无法实现快速诊断和故障定位,存在排障效率低、责任分割难、运维成本高等问题。中国铁塔自主研发的智联终端综合分配单元(Integrated Distribution Unit,简称IDU),集电源分配、网络传输和远程管控等功能于一体,用于实现对智联终端供电、联网、运行状态监测、故障发现及远程控制等的集中化管理,为解决上述痛点问题提供了一种高效、便捷的手段,支撑铁塔智联业务发展。展开更多
Objectives: To investigate prevalence and risk fac-tors of syphilis infection among injection drug users(IDUs) in Lianshan Yizu Autonomous Region ofSichuan province, China.Methods: From November 8th 2002 to November29...Objectives: To investigate prevalence and risk fac-tors of syphilis infection among injection drug users(IDUs) in Lianshan Yizu Autonomous Region ofSichuan province, China.Methods: From November 8th 2002 to November29th 2002, a community-based cross-sectional surveywas conducted to investigate the demographic charac-teristics and sexual behaviors of a population of IDUs.Blood samples were collected to test for syphilisinfection. A total of 379 subjects were recruitedfor the study through community outreach and peerrecruiting methods.Results: Of 379 IDUs, the syphilis prevalence amongIDUs was 15.3% (58/379). Gender, years of education,history of unprotected sex with non-steady sex part-ner in the last month, number of sex partners in thelast 6 months, frequency of sex with non-steady sexpartner in the last 6 months, and number of any newsex partner(s) in the last 6 months were associatedwith syphilis infection after univariate analysis usingthe chi-squared test. Multivariate logistic regressionanalysis showed that ethnicity (OR, 2.85; 95% CI,1.55-5.25), marriage (OR, 1.94; 95% CI, 1.04-3.62)and receiving money for sex in the last 6 months (OR, ,5.60; 95% CI, 2.65-11.85) were significantly associ-ated with syphilis infection among IDUs.Conclusions: This study found that receiving moneyfor sex in the last 6 months was significantly associ-ated with syphilis prevalence among IDUs. It isrecommended that further health education andintervention campaigns be focused on IDUs to promotesafe sexual practices.展开更多
文摘随着中国铁塔智联业务的迅速发展,其专业化维护能力不足的问题也逐步凸显。其中,故障发现不及时、故障定位困难、排障滞后等,已成为智联业务系统运维过程中亟待解决的痛点问题,特别是在设备掉线的情况下,无法实现快速诊断和故障定位,存在排障效率低、责任分割难、运维成本高等问题。中国铁塔自主研发的智联终端综合分配单元(Integrated Distribution Unit,简称IDU),集电源分配、网络传输和远程管控等功能于一体,用于实现对智联终端供电、联网、运行状态监测、故障发现及远程控制等的集中化管理,为解决上述痛点问题提供了一种高效、便捷的手段,支撑铁塔智联业务发展。
基金The National Natural Science Foundation of China(1070105311072136)+1 种基金the Shanghai Leading Academic Discipline Project(S30104)the International Development Research Center of Canada(104519-010)
基金Supported by The National Tenth-Five-Year Scientific Championship Project (No. 2001BA705B02) and National Natural Science Foundation of China Project (No. 30170823).
文摘Objectives: To investigate prevalence and risk fac-tors of syphilis infection among injection drug users(IDUs) in Lianshan Yizu Autonomous Region ofSichuan province, China.Methods: From November 8th 2002 to November29th 2002, a community-based cross-sectional surveywas conducted to investigate the demographic charac-teristics and sexual behaviors of a population of IDUs.Blood samples were collected to test for syphilisinfection. A total of 379 subjects were recruitedfor the study through community outreach and peerrecruiting methods.Results: Of 379 IDUs, the syphilis prevalence amongIDUs was 15.3% (58/379). Gender, years of education,history of unprotected sex with non-steady sex part-ner in the last month, number of sex partners in thelast 6 months, frequency of sex with non-steady sexpartner in the last 6 months, and number of any newsex partner(s) in the last 6 months were associatedwith syphilis infection after univariate analysis usingthe chi-squared test. Multivariate logistic regressionanalysis showed that ethnicity (OR, 2.85; 95% CI,1.55-5.25), marriage (OR, 1.94; 95% CI, 1.04-3.62)and receiving money for sex in the last 6 months (OR, ,5.60; 95% CI, 2.65-11.85) were significantly associ-ated with syphilis infection among IDUs.Conclusions: This study found that receiving moneyfor sex in the last 6 months was significantly associ-ated with syphilis prevalence among IDUs. It isrecommended that further health education andintervention campaigns be focused on IDUs to promotesafe sexual practices.
