Browsing by Author "Melese, Teshome"
Item Development of Maintenance Model and Strategy For Addis Ababa Light Railway Transport (AALRT) Railway Track Line(Addis Ababa University, 2016-12) Melese, Teshome; Abdulsetar, Siraj (Mr.)There is a need among transportation maintenance decision makers for a better understanding of the long-term behavior of railroad tracks. The use of accurate techniques (maintenance model and strategy) to predict track conditions increases track safety and maintenance effectiveness as well as reduce maintenance costs through improve planning. This paper describes the track maintenance model and strategyrelevant for Addis Ababa Light Rail Transit.By using reliability model with weibull distribution, the expected number of critical and degraded failures are determined. Then three failure mechanisms are determined and the rate of critical and degraded failures is determined for each failure mechanism. Finally the governing value of critical and degraded failure are chosen to determine reliability parameters such as mean time to failure(MTTF),mean time to detect(MTTD),mean time before failure(MTBF),mean time to repair(MTTR) and preventive maintenance index(Ipm). The analysis result shows that, the Frequency of critical failure is reduced by 56%by conducting three inspection per year. And also the Mean time until any failure is detected by conducting inspection at every four months of interval for AALRT Railway track line (MTBF) is obtained as 2.55 years. Then after, four maintenance strategies are developed for AALRT. These are: Repair as soon as the component is identified to be in a state where repair is necessary, repair when the component is identified in the state where a major repair is required, repair when the component is identified as being in the state where renewal is needed and no repair, component is allowed to deteriorate without any intervention.Item Prevalence and Associated Factors of Postnatal Care within one Week Utilization Among Women Who Had Given Birth in the Last Six Weeks in Ameya District, Oromia Regional State, Ethiopia, 2016(Addis Ababa University, 2016-05) Melese, Teshome; Assefa, Yosief (PhD)Introduction: Majority of maternal and neonatal deaths occurred during pregnancy, childbirth and postpartum. In the neonatal period (the first 28 days of life), most deaths occur during the first 7 days. In Ethiopia level of any postnatal care utilization was very low. Ethiopia Mini demographic and health survey reported 87 % of women didn’t receive postnatal care within two days, as recommended by world health organization (WHO). Objective: The objective of this study was to assess prevalence and associated factors of postnatal care within one week utilization among women who had given birth in the last six in Ameya district, Oromia regional state, Ethiopia, 2016. Method: An institution quantitative based cross sectional study design employed from February 15 –March 15, 2016 G.C in Ameya district. 332 study participants were selected by taking as a cluster those proportionally allocated to respected health centers. The data were analyzed using SPSS version 23.0. Bivariate and multivariate logistic regression was used to identify the associated factors with the outcome variable. Graphs, tables and sentences were used for descriptive statistics. Result: The finding revealed that postnatal care within one week utilization in the study area is 25.3%. Partner occupation, complication during labor & delivery distance between her home & health center, advised on maternal postpartum complications, advised on neonatal complications and awareness of PNC within one week services were the main contributing factors of PNC within one week utilization. Conclusion and recommendation: PNC within one week utilization is low. Partner occupation, complication during labor & delivery, distance between her home & health center, advised on maternal postpartum complications, advised on neonatal complications and awareness of PNC within one week services were the main factors affect PNC within one week. Based on the finding the researcher would like to recommend, all ministry of health (MOH), stake holders, health professionals and health extension workers (HEWs) to create awareness and providing quality PNC services timely. Key words: Within one week, postnatal care utilization, mothers, Ameya