In mobile computing systems,message logging can be used to provide fault tolerance for mobilehosts.Due to the mobility of mobile hosts,their recovery information,including logged messages andcheckpoints,may spread thr...In mobile computing systems,message logging can be used to provide fault tolerance for mobilehosts.Due to the mobility of mobile hosts,their recovery information,including logged messages andcheckpoints,may spread throughout mobile support stations.During recovery,there will be a considerablecost for the collection of recovery information.To speed up recovery and to reduce the failure-freeoverhead,an improved area-difference-based scheme is proposed.It tries to keep recovery informationevenly spreading over an area.Only part of recovery information needs to be migrated for controlling thedistribution of recovery information.To reduce the migration cost,a light-weight migration is also proposed.In the performance study,we give an analysis of the probability that the light-weight migrationtakes place.展开更多
Studies about the elderly are mostly focused on morbidity and psychological conditions of the elderly. Effects of social relations have been noted to be important for the well-being of an elderly person. Later studies...Studies about the elderly are mostly focused on morbidity and psychological conditions of the elderly. Effects of social relations have been noted to be important for the well-being of an elderly person. Later studies have begun to look at socioeconomic status of the elderly to see its relation to the level of morbidity. This paper is based on a nationwide survey. A total of 10 percent of elderly total population was interviewed to obtain socioeconomic and lifestyle information. A self reporting method was used as it was easiest to obtain the answers from the elderly. A total of 1410 elderly respondents aged 60 and above were interviewed from the regions of northern, eastern, middle and southern Peninsular Malaysia and also from Sabah and Sarawak. The data was analyzed using the SPSS 16. Quantitative analysis based on mean, standard deviation and multiple regressions was done. Findings show that higher morbidity rate lowers ones economic well-being. Females report higher morbidity then males, while those who are married and residing in rural area also reoort lower morbidity.展开更多
As the quantitative easing policy is gradually withdrawn by the U.S.Federal Reserve on the basis of economic recovery,the U.S.dollar will enter a phase of continuous interest rate increases.U.S.dollar’s appreciation ...As the quantitative easing policy is gradually withdrawn by the U.S.Federal Reserve on the basis of economic recovery,the U.S.dollar will enter a phase of continuous interest rate increases.U.S.dollar’s appreciation will become an inevitable trend.Against this backdrop,the Chinese currency,the yuan,will face more depreciation pressure.As a matter of fact,the timing for the yuan to moderately depreciate has come,judging from both external and internal factors.Moderate depreciation of the Chinese currency is not only beneficial for economic recovery,but will also lift China’s A-share market.展开更多
基金Supported by the High Technology Research and Developme.nt Programme of China (No. 2008AA01A201, 2008AA01 A204)
文摘In mobile computing systems,message logging can be used to provide fault tolerance for mobilehosts.Due to the mobility of mobile hosts,their recovery information,including logged messages andcheckpoints,may spread throughout mobile support stations.During recovery,there will be a considerablecost for the collection of recovery information.To speed up recovery and to reduce the failure-freeoverhead,an improved area-difference-based scheme is proposed.It tries to keep recovery informationevenly spreading over an area.Only part of recovery information needs to be migrated for controlling thedistribution of recovery information.To reduce the migration cost,a light-weight migration is also proposed.In the performance study,we give an analysis of the probability that the light-weight migrationtakes place.
文摘Studies about the elderly are mostly focused on morbidity and psychological conditions of the elderly. Effects of social relations have been noted to be important for the well-being of an elderly person. Later studies have begun to look at socioeconomic status of the elderly to see its relation to the level of morbidity. This paper is based on a nationwide survey. A total of 10 percent of elderly total population was interviewed to obtain socioeconomic and lifestyle information. A self reporting method was used as it was easiest to obtain the answers from the elderly. A total of 1410 elderly respondents aged 60 and above were interviewed from the regions of northern, eastern, middle and southern Peninsular Malaysia and also from Sabah and Sarawak. The data was analyzed using the SPSS 16. Quantitative analysis based on mean, standard deviation and multiple regressions was done. Findings show that higher morbidity rate lowers ones economic well-being. Females report higher morbidity then males, while those who are married and residing in rural area also reoort lower morbidity.
文摘As the quantitative easing policy is gradually withdrawn by the U.S.Federal Reserve on the basis of economic recovery,the U.S.dollar will enter a phase of continuous interest rate increases.U.S.dollar’s appreciation will become an inevitable trend.Against this backdrop,the Chinese currency,the yuan,will face more depreciation pressure.As a matter of fact,the timing for the yuan to moderately depreciate has come,judging from both external and internal factors.Moderate depreciation of the Chinese currency is not only beneficial for economic recovery,but will also lift China’s A-share market.
