Browsing by Author "Negash, Tewodros"
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Item The Contribution of Governmet Secondery Schools for the Development of Handball Sport in Addis Ababa Bole Sub City(Addis Abeba university, 2011-06) Negash, Tewodros; Belay, Mebratu(Assistant Professor)The major purpose of this paper was to investigate a study on the contribution of same selected secondary schools found in bole sub city Addis Ababa for development of handball sport and make recommendation for their contribution for handball sport development. The main issues considered are schools contribution for handball sport development. To this end descriptive survey method was employed. Data were gathered from three general secondary schools, six teachers and three hundred students. Accordingly, the respondents sampling was carried out through simple random selecting techniques. The data for the study was obtained through questioner, interview, observation various statistically techniques both qualitative and quantitative. Percentages were used to analyses the data. The result indicates that: - inadequacy of school materials, facilities and teaching materials, family and teachers and other concerned bodies to encourage involving the Children to participate in handball activities, the students are not interested like the other ball games. There for it is recommended that depending on the result , firstly concerned bodies that is teachers, school directors, parents and other concerned bodies have to encourage students to participate in handball activities , schools must fulfill equipments and handball teaching materials that encourage student interest and participation in handball activities , give equal opportunity to handball sport like the other ball games and parents also work together closely with teachers and students, increasing handball specialized teachers to work closely with physical education teachers and handball teachers must directly involve when the curriculum and other competition programs were organized to overcome the problem that affect s students participation in handball activities, to encourage the student participation and interest in handball activity and to give regular counseling for the students on the basis of their performance inside and outside of the school.Item Trust-region Method for Derivative Free Case(Addis Ababa University, 2015-11) Negash, Tewodros; Mitiku Ph.D, SemuIII this project a derivative-free (DF) surrogate-based trust regioll optimization approach is proposed. In the proposed approach, quadratic surrogate models are constructed and successively IIpdated. The generated surrogate model is then optimized instead oj the underlined objective j unction over trust regions. Trullcated conjugate gradients are employed to find the optimal point within each trust region. The approach COl/structs the initial quadratic surrogate model using few data points oj order 0(11), where II is the lIumber oj design variables. The proposed approach adopts weighted least squares fitting Jar updatillg the SlIrrogate model illstead oj interpolation which ;s commollly used ill DF optimization, This makes the approach more suitable/or s tochastic optim ization and for funcliolls subject [0 I/Il1llerical error. The weights are assigl/ed 10 give more emphasis to points close to th e current center point.