College of Natural Sciences: Recent submissions

Now showing items 201-220 of 1145

Modeling Time to Return of Volunteer Blood Donor’s: In National Blood Bank, Addis Ababa, Ethiopia Thesis

Seid Ali Tareke; Kadi Adiveppa; Fikadu Zewdie (2021-03-24)

Background: Blood is the most precious and unique gift that one human being can give to another. It is lifesaving fluid that cannot be created artificially, but is only collected from donors which are the precious ...
Major factors affecting the participation of students in physical education class in the case of some selected secondary schools of north shoa oromia regional state Thesis

Asamenew Teshome; Wondemagegn Demise; Amanu Eba (2021-09)

The aim of the study was to assess the factors affecting the participation of students in physical education class in the case some selected secondary schools of North Shoa Oromia regional state. Descriptive survey method ...
Factors That Affecting Female Students Basketball Teaching Learning Process in Selected Bole Sub city Government Secondary Schools Thesis

Aschalew Siyoum; Wondemagegn Demissie; Marara Negasa (2021-04-06)

The purpose of this study was to identify the factors affecting female student’s basketball teaching learning process in selected Bole Sub city Government Secondary Schools. In this study cross-sectional research design ...
A comparative study on the attitude of student with cerebral palsy Vs. Student with hard of hearing. To wards physical education; in Case of some selected secondary schools in oromia state north Shoa zone Thesis

Genet Adefris Hailesillase; Amanu Eba; Mekoya Mengesha (2021-12)

The purpose of this study was to assess the attitude of student with cerebral palsy vs hard of hearing to wards physical education. The participant of this study was seven(7) physical education teachers and 15 students ...
The impact of enhancing recreational activities on physical education class participation of students in arsi zone selected secondary Thesis

Birtukan Fantahun; Tesfaye Damena; Amanu Eba (2021-09)

The general objective of this study is to investigate the influence of recreational activities in enhancing physical education practical class in west Arsi to achieve this objective; the study used simple random sampling ...
Ocimium lamiifolium leaf extract supported synthesis of ag/cuo nanocomposite for photocatalytic and antibacterial applications Thesis

Tamirat Birhanu; Guta Gonfa; Gebru G/Tsadik (2021-11)

Since dye effluents discharged from different industries lead to environmental contamination, their treatment and remediation method is highly desired. Due to the limitation of physical methods like adsorption, the ...
Constraining cosmological parameters And estimation of mass of the universe in The lambda cold dark matter model Thesis

Yosen Jembola Debele (2021-09)

In this thesis we considered the flat CDM cosmological model to constrain the density parameters, the Hubble constant and the age of the universe. We did also estimate the mass of the universe setting some relevant ...
Photo catalytic degradation of methylene blue dye using cuprous oxide/graphene nanocomposite Thesis

Bekan Bogale Duki; Fekadu Melak (2021-11)

The stability of Cu2O nanoparticles due to the fast recombination rate of electron/hole pairs remains a significant challenge in its photocatalytic applications for water treatment. In this study, Cu2O/graphene nanocomposite ...
Extraction kinetics, analysis of caffeine, and total acid contents of coffee at different roasting conditions Thesis

Meseret Koras Gobena; Fekadu Melak; Birtukan Adane (2014-11)

Green coffee beans contain important components like total acids that were labile of temperature effects and can be affected by roasting. So, it is important to investigate effects of coffee roasting conditions classifying ...
Effects of 12 weeks of aerobic exercise program on weight loss of sedentary overweight women in sheshemanne city Thesis

Ukula Yohannis; Wondemagegn Demise; Zewge Hailu (2021-09)

developing effertct aerobic exercise program for overweight woman is astrategy for improvimg BW,BMI and WC. Ojectives: The general objective of this study is to investigate the effect of 12 weeks aerobics exercise program ...
Isolation and Characterization of Thermostable Enzyme-Producing Microbes from Selected Hot springs of Ethiopia Thesis

Genet Abebe; Meseret Guta; Lataa Lachisa (2021-11)

Hot springs are springs that occur naturally at elevated temperatures, originated when water seeps into the earth and come contact to the magma near to earth’s surface and are potential sources of microbial diversity and ...
Removal of Hexavalent Chromium from Aqueous Solution Using Activated Taro Residue Carbon as an Adsorbent Thesis

Zelalem Desta; Abera Gure; Feyisa Wedajo (2021-12)

Hexavalent chromium, Cr (VI) is one of the major heavy metals of great concern in aqueous solution. Its removal from aqueous solution is crucial for environmental protection. In this study, the adsorption of Cr (VI) from ...
The effect of continuous assessment on students achievement in physical education subject abbichu secondary school: mendida town oromia regional state Thesis

Getachew Workineh; Samson Wondirad; Makoya Mengesha (2021-10)

The purpose of this study was to assess the effect of continuous assessment on student’s achievement in physical education subject in Abbichu secondary school: Mendida Town Oromia Regional State. The study design was ...
The impact of sport facilities and equipments on achievements of students in selected secondary school of buno bedele zone Thesis

Tariku Bekele; Samson Wondiad; Bahilua Bekele (2021-09)

The purpose of this study was to identify the impact of sport facilities and equipment’s on achievements of students in selected secondary school of Buno Bedele Zone. The cross-sectional study design was used. Buno Bedele ...
Assessment on Wild and Semi Wild Edible Plants in Mengeshi District, Majang Zone Gambella Regional State, South west Ethiopia Thesis

Jamal Endris; Dereje Denu; Dessalegn Raga (2021-10)

Assessment on Wild and semi wild edible plants was performed in Majang zone, Mengeshi district, Gambella regional state, Ethiopia. The field study was conducted between January to June 2021. A total of 395 informants were ...
Factors that affect athletics talent identification and development in selected secondary schools of kemibata tamebaro zone Thesis

Girma Yohannes; Samson Wonderad; Eshetu Girma (2021-09)

Sport athlete talent identification is the process of recognizing current participants with the potential to become elite athletes. The general objective of the study was to investigate factors that affect the athlete’s ...
Common fixed Point results on complete b-metric spaces and dislocated quasi b-metric Spaces Thesis

Shimeles Deyou; Kidane Koyas; Aynalem Girma (2021-11)

In this thesis, we established common fixed point theorems and proved the existence and uniqueness of common fixed points for a pair of self-maps in the setting of complete b-metric spaces and dislocated quasi b-metric ...
Stability and Bifurcation Analysis of Activator-inhibitor Reaction Diffusion System Thesis

Gosu Alemu; Chernet Tuge; Dinka Tilahun (2021-10)

In this thesis, stability and bifurcation analysis of activator-inhibitor reaction diffusion system was considered. The system was analyzed into two parts. The first part is without diffusion. Without diffusion, the system ...
Two dimensional fourth order time fractional parabolic equations and its analytical solutions by Fractional Reduced Differential Transform Method Thesis

Aklilu Aweke Wolde; Yesuf Obsie; Ademe Kebede (2021-10)

In this manuscript, the solution of two dimensional fourth order time-fractional non- homogenous parabolic equations is solved by using Fractional Reduced Differential Transform Method. The efficiency of FRDTM is confirmed ...
Synthesis of ZnO and Cu-doped ZnO Nanoparticles using Aloe Vera leaf extracts and evaluation of their antibacterial and photocatalytic activities Thesis

Mulatu Degefa; Guta Gonfa; Kirubel Teshome (2021-11)

In recent years, nanoparticles synthesis by biological method has gained extensive attention due to its low cost, simplicity, non-toxic and environmentally-friendly nature, compared with chemical and physical synthesis ...

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