利用TRACK诊断NetWare网络通信问题

介绍了 Net Ware网络控制台的 TRACK命令的使用方法 ,重点分析了 TRACK路由跟踪屏幕上 SAP、RIP信息以及连接请求信息的格式和具体含义 ,最后给出了两个利用TRACK诊断 Net Ware网络通信问题的实例。     

Pilot trial of a disclosure intervention for HIV+ mothers: The TRACK program.

Objective: The Teaching, Raising, And Communicating with Kids (TRACK) program was a longitudinal pilot-trial intervention designed to assist mothers living with HIV (MLHs) to disclose their serostatus to their young children (age 6–12 years). Method: MLH and child dyads (N = 80 dyads) were recruited and randomized to intervention or control; the intervention group had 3 individual sessions and 1 follow-up phone call. The sessions focused on preparing MLHs for disclosure through behavioral exercises using Derlega's model (V. J. Derlega, B. A. Winstead, K. Greene, J. Serovich, & W. N. Elwood, 2004) of HIV disclosure. Both MLHs and their child were assessed across multiple time points (baseline, 3, 6, and 9 months) regarding disclosure of HIV status, and specific outcome variables (i.e., relationship context, mother's health, child's mental health, and family outcomes). Results: MLHs in the intervention group were 6 times more likely to disclose their HIV status than those in the control group (OR = 6.33, 95% CI [1.64, 24.45]), with 33% disclosing in the intervention group compared with 7.3% in the control group. MLHs in the intervention group showed increases in disclosure self-efficacy across time, increased communication with their child, and improvement in emotional functioning. Children of MLHs in the intervention group exhibited reductions in depression and anxiety, and increases in happiness. Conclusions: TRACK was found to be successful in helping MLHs disclose their HIV status to their children, with positive outcomes noted for both MLHs and their children. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

基于分级树的可靠组播拥塞控制的研究

首先分析了可靠组播拥塞控制机制所面临的问题,在此基础上提出了一个基于分级树的可靠组播的拥塞控制机制,它着重考虑了拥塞控制的可扩展性以及与TCP数据流的友好性,因而具有很强的实用性.仿真试验结果表明,该拥塞控制机制可以较好地解决TCP流对瓶颈带宽的共享问题,并在一定程度上满足了可靠组播流对TCP友好性的要求.