Browsing by Author "Tesfaye, Dawit"

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    Analysis of the Development of Convention Tourism in Addis Ababa
    (Addis Ababa University, 2014-06) Tesfaye, Dawit; Tesfay, Teklay (Assistant Professor)
    The objective of this research was to analyze the development of convention tourism in Addis Ababa at present by exploring the determinant factors affecting the selection of destination and observing the opportunities and challenges on the development of the sector. In doing so, the research has followed a mixed research approach having a descriptive and exploratory research types. Since the research’s focus was on the supply side of the sector, an in-depth interview has been used to gather qualitative data from the respective informants, even though some quantitative data had been collected from the demand side for the purpose of triangulation. After the completion of the study, the research have brought the following findings, first Addis Ababa’s convention tourism is moderately growing from a quantitative perspective than the quality aspect. Secondly safety and security, destination location, convenient venue and related costs have been found the most important factors affecting decision making process while selecting convention sites. Thirdly, destination marketing, management and integration problems are the most visible gaps observed at the destination that hinders it from developing the product with quality to enhance competitiveness. Finally various opportunities and challenges have found in relation to the convention business in Addis. Based on the conclusion the research has made a conceptual model for the development of competitive and sustainable convention tourism product and destination in Addis Ababa as a recommendation which consists of five pillars. The recommendation includes that responsible stakeholders needs to understand the different interrelated environments that are relevant for the smooth operation of convention tourism and work hard in cooperation with each other. Further there is a need to work very hard to enhance quality of infrastructures, products and services and there is a need to build image of the destination so as to make it more competitive
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    Study on Factors of Work Motivation, Attrition and Retention of North Wollo TVET Teachers in Amhara Region
    (Addis Ababa University, 2008-06) Tesfaye, Dawit; Mekonen, Worku (PhD)
    This study \\las cOllducled on govemmelll rVEr leachers of Norlh Wallo Adminislralive Zone. Its major purpose was to invesligale jilclOrs of work mOlivation, altrilion, and relention of TVET leachers. To Ihis ef/ecl, a slructured queslionnaire was prepared and ariministered 10 62 leachers and 6 inslilillion administrators. Data analysis \Vas made using the Statislical Packages for Social Science Studies (SPSS). Percentage, /VIean, I-lest, and one-way analysis of variallce (ANOVA) were used to idelltifjl if Ihere \IIere difference alld similarity among the respondenls on several variables. Results sho\lled thai, among the reasons teachers are highly dissalisfied and resigning their illstitUlioll \\lith the following major variables: poor pay/minimum arnot/lit of payment, the physical conditions of work/facilities availability for doing the work, poor leacher mallagemellt al al/ level of the illstitution, poor level of communication between teachers and instilillion adminislrators, Negative image of the teaching profession Ihe society, alld IInfair and incompetence of the supervision. The reason for res igning teachers responded by leachers and administralors are IIIoslly sin/ilar. Accordingly this study pointed out that, dimi nutive consid eration has been given to teachers' retention and there fore, no effort was made to reduce teacher attri tion. The study revealed Ihat among the faclors that contributed to relain teachers in their institutions are: th e opportunity for further educatiollal advancement, the notion that teaching is betler Ihan other jobs ill benefiting the sociely, wanting the opporlIInity 10 be crealive, high level of satisfaction by Ihe job itself, and the thinking that leaching provides an opportunily to enjoying with young people. Further lIIore, t-test alld aile way ANOVA of this study reveals that there are significalll mean difference between current qualification, age, and experiellce across work motivation factors. On Ihe other hand teachers don 'I differ on faclors of teacher lUi'll over and teacher retelltion. No significallt difference ill work l1Iotivatioll fa ctors, factors of teacher lum over and relention is found across salary groups of employees.
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    A Study on the Potential of Native Entomopathogenic Fungi against Melon/Cotton Aphid, Aphis Gossypii Glover (Homoptera: Aphididae
    (Addis Ababa University, 2007-07) Tesfaye, Dawit; Seyoum, Emiru(PhD)
    The effects of five temperature regimes and five artificial culture media on germination, radial growth and sporulation of four Beauveria and two Metarhizium isolates obtained from various ecological zones of Ethiopia were investigated in vitro. The susceptibility of adult Aphis gossypii to four concentration levels (105, 106, 107 and 108 conidia ml-1) of these fungal isolates was evaluated with direct spraying bioassay at 20, 25 and 300c under laboratory conditions. All experiments were replicated three times using completely randomized design. Germination, radial growth and sporulation of all fungal isolates were slower at 150c than 20, 25 and 300c. At 350c none of the Beauveria isolates were able to germinate after 24 hour post inoculation. A suitable temperature for germination and radial growth was ranged from 20 - 300c for all fungal isolates. The maximum rate of growth per day was obtained at 300c followed by 250c. As regards to artificial culture media, all fungal isolates showed maximum radial growth on OMA. Isolate MM and ICIPE 30 revealed the highest sporulation and fastest germination percentage 60% and 77% after 8 hour on OMA, respectively. The Beauveria isolate, DLCO 105 showed the highest sporulation on SDA and PDA. The maximum rate of growth per day was obtained on OMA with all the fungal isolates. The result of the bioassay showed that at 25 and 300c, all tested isolates with 1 x 108 conidia ml-1 were virulent (73.33 – 93.33% mortality and LT50 ranged from 3.82 - 4.96 days) and (82.22 - 100% mortality and LT50 ranged from 3.22- 4.01 days) to Aphis gossypii, respectively. The Beauveria isolate DLCO 87 had the lowest LC50 value at 20 and 300c and DLCO 41 at 250c.The results of the present study suggest that the potential use of native entomopathogenic fungi as an alternative method to chemical pesticides may hold promise for the management of Aphis gossypii in Ethiopia.