Browsing by Author "Tadesse, Belay"

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    Assessment of Customer Satisfaction on Multi-modal Transport System: The Case of Selected Private Import Businesses
    (Addis Ababa University, 2016-05) Tadesse, Belay; Said, Mohammed (PhD)
    The primary objective of this study was to assess customer satisfaction on multimodal transport system as evidenced from users (private import business) perspective. Multimodal transport service, logistics service value, and customer service relationship quality, have been utilized as measurement constructs to assess the level of customer satisfaction. In this study, the customer satisfaction has been rigorously studied. The constructs have been properly operationalized to develop, the survey questionnaires used to collect data. A quantitative method has been applied to analyze the data collected from importers operating in Addis Ababa. The findings of the statistical analysis have shown that importers have been relatively dissatisfied on the multimodal transport service. They have not been feeling that the current multimodal operator has been delivering the logistics service value for money and they have been indifferent to the customer service relationship quality. The study has also shown that there are no statistically significant relations between the indicators, which support the null hypotheses as well. In summary, this study has empirically assessed the multimodal transport system has contributed insignificantly to enhance importers business performance in Addis Ababa. And importers businesses have not been improved due to the service values of the current MTO in Ethiopia. This will provoke the need for furthers research at national level in order to assure the theoretically supported effect of the multimodal transport service on private businesses.
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    In Vitro and In Vivo Anti-trypanosomal Activity of Dichloromethane and Methanol Crude Leaf Extracts of Dovyalis abyssinica (Flacourtiaceae) against Trypanosoma congolense Field Isolate
    (Addis Ababa University, 2014-01) Tadesse, Belay; Shibeshi, Workineh(PhD); Terefe, Getachew(PhD)
    African Trypanosomosis is a neglected tropical disease of medical and veterinary importance. Parasite control relies on the use of few drugs whose resistance and unacceptable toxicities urged the investigation of new agents, preferably from natural sources. Though Dovyalis abyssinica has been reported to posses significant trypanocidal activity on Trypanosoma brucei in in vitro model, activity on trypanosome infected laboratory animals has not yet been worked out. The aim of the present study was, therefore, to investigate the in vitro and in vivo activity of D. abyssinica on T. congolense field isolate. To evaluate the effect on motility, 200 μl T. congolense infected blood was mixed with 50 μl of 20, 10, 2, 0.1, 0.015 mg/ml dichloromethane and methanol extracts. Reduction or cessation of motility was then microscopically monitored for 120 minutes, and the remaining in vitro mixtures were inoculated to healthy mice and monitored for development of infection for 21 days. Furthermore, fifty T. congolense infected mice were randomly grouped into ten groups of five and administered with curative doses (250, 200, 150 and 100 mg/kg) of dichloromethane and methanol and 28 mg/kg diminazene aceturate and dimethylsulfoxide. Following administration, parasitemia, packed cell volume (PCV), rectal temperature, body weight and survival time were iii monitored. Suppressive doses of the extracts (250 and 200 mg/kg) were administered 24 hours post-infection and parasitemia was monitored. Dichloromethane and methanol extracts at 20, 10, 2 mg/ml concentrations ceased parasite motility within one hour and eliminated subsequent infectivity in mice for 21 days. Administration of dichloromethane and methanol extracts at 250 and 200 mg/kg reduced (p<0.05) parasitemia and rectal temperature, and improved (p<0.05) PCV, mean body weight, and mean survival time compared to DMSO treatment. In conclusion, D. abyssinica at higher concentrations in vitro and higher curative doses in vivo in mice posses anti-trypanosomal activity. Keywords: Anti-trypanosomal, D. abyssinica, in vitro, in vivo, T. congolense, mice.
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    Lived Experiences of Children with Physical and Health Impairments at Jewi Refugee Camp: Gambella Region
    (Addis Ababa University, 2017-06) Tadesse, Belay; Admas, Fantahun (PhD)
    The main aim of this study was to describe the lived experiences of refugee children with disabilities from their own perspective. Descriptive phenomenological research design was used. Five children with disabilities in which the four have different types of physical disability and one child was living with epilepsy, who were drawn using purposive sampling, were participated in the study. Data were collected using unstructured face to face interview and observations field notes. The interviews were made in ARRA field office of the refugee camp. In order to analyze the data coding, categorizing and organization of major and sub themes were done. After repeated reviews and coding of the data, four major themes were identified. These are 1. Refugee camps as a survival for life, 2. Views of children with disability towards the nature of their disability; 3. Challenges and obstacles within refugee camp, and 4. Outcomes of refugee members’ observation and feelings on the life of children with disabilities. The findings revealed that children with disabilities consider the refugee camp as a better place for their life to survive. They also have different understandings on the nature of their disability and their views lied on more of the traditional model of disabilities. The finding also showed that children with disabilities face several challenges as a result of being a child with disability, and these challenges and obstacle lead them to develop several problems because of the prejudice and discriminations. Consequently based on the findings of the study recommendation were forwarded