Browsing by Author "Tilahun, Abayneh"

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    Environmental Impacts of Floriculture Industry in Debrezeit Town: a Need for Strategic Environmental Assessment
    (Addis Ababauniversity, 2013-07) Tilahun, Abayneh; G/mariam, Ephrem (PhD)
    Floriculture is one of the booming sectors in Ethiopia, and a good way to generating income for both the owners and the government. Beside this, different environmentalists complain on the industry because the industry uses too much pesticides and chemical fertilizers which damage the environment. The general objective of this research is to assess the ecological impacts of floriculture industries on surrounding environment with respect to the existing environmental regulations/EIA/ and implementation, and assessing a need for strategic environmental assessment/SEA/ which basically focuses on cumulative impacts. The study was conducted on floriculture industry and the surrounding environment where the industries are congested, in Debrezeit town. The necessary data are collected through interviewing the employee (Senior Experts) in floriculture industry, direct physical site observation and assessing existing situation of the study area and by taking sample from the soil and river water. Water samples are taken at five sample points along the Wedecha River which is found adjacent to the industries. Eight parameters (pH, electrical conductivity (EC), Nitrate (No3-N), reactive phosphate (PO4), Biological oxygen demand (BOD), chemical oxygen demand (COD), Sulfate (SO4), Total ammonia (T-NH3)) are used to analyze ecological impacts of the industries on water body. The soil sample also taken from two different green houses those are established in different time series. The following parameters, pH, CEC, EC, Phosphorus (P) and total Nitrogen (TN) are used to analyze the impact on the soil by the industries. The founding result indicating that some parameters BOD5 (54 mg/l), PO4 (3.4 mg/l), NO3 (16.6 mg/l), T-NH3 Keywords: Floriculture industry, effluent, EIA and SEA (0.1 mg/l) from water samples are beyond the standard which is stated by EPA. And the soil sample result of (CEC and EC) also has a great difference when compared to common agricultural soil and the concentration of phosphorus (P) and nitrogen (N) are high when compared to international standards. Beside this, 90% of the flower industry uses ground water resources. As planting media 40% uses soil bed, hydroponics 30% and the rest 30% also used both planting media. The waste is discharged directly to water body by 30% of the farm and 40% are drain to the land. The land use change is also visible, 30% of the farm is established on local farmer’s area, and 40% are established on state farm area and the rest 30% are established by removing the swampy area. In the case of health issue only 20% of the farms have a clinic. And no one have (100%) EIA document. Therefore, to assure the environmental sustainability of the booming projects of floriculture industry, the introduction of SEA to the country will flourish the way. SEA can do in a better way which EIA is unable to do. Wastewater recycling, Wastewater treatment, Vegetation Buffer preparation, integrated pest management (IPM) practices, Health and safety training to workers, and application of Strategic Environmental Assessment SEA are a good practices to minimize the impact and For better, sustainable and conducive environment sake
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    Order Systems, Ideals and Right Fixed Maps of Subtraction Algebras
    (Addis Ababa University, 2016-09-09) Tilahun, Abayneh; Teshome, Zelalem(PhD)
    This project deals with introduction of subtraction algebra, weak subtraction algebra and their the properties.order systems and ideals of a weak subtraction algebra and a subtraction algebra will be introduced.the concept of xed map in weak subtraction algebra will be discussed. Conditions for an ideal to be irreducible will be provided. More over, relations between ideals and order systems are given
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    The Practice of development Journalism in the Ethiopian media landscape
    (Addis Ababa University, 2017-06) Tilahun, Abayneh; Jemaneh, Agaredech(PhD)
    This research attempted to study the practice of development journalism in Ethiopian media landscape, through comparing the development issue coverage and challenges of government and private owned media. It was informed by public serving development journalism and social responsibility theory of theoretical frameworks. Its focus was on a practical nature of development news coverage and challenges in Ethiopian media. The research emphasizes on the ownership, actors, nature, sector, aim, source and trend of development issue coverage and the challenges of the coverage. A Content analysis and in-depth interview was conducted on the news carried by the four selected media to explain the extent and explore the challenges of coverage of development issues respectively. The analysis shows that both the government and privately owned media in Ethiopia had their own kind of problems in their practice of development journalism: The government media, Focuses on the government development actor’s success only. They are not applying critical journalism. To the worst, the government media are not considering the development contribution of non state actors . The government media are event oriented They luck professional integrity for the public interest by ensuring transparency and accountability by exposing corruption and investigating crimes that hinder the national development process through ethically participation in the development activity in a process oriented manner and are not finding solutions for development problems through participating the grass root. Structural censorship, Self censorship of journalists, unethical conduct of journalists, professional limitations, law commitment of media leaders to enforce the policy, lower level of Public culture of information exchange, trespassing of editorial policy and government official’s perception of DJ as a development success only reporting are challenging the practice. In contrast, privately owned media in Ethiopia covered less development issues than the government media, gives very little time and space for the development issues of Ethiopia compared to the government media. But, in that little amount of coverage, they focus on government development actors failure and dissimulate non-state actors failure. Paradoxically, the private media in Ethiopia similar to government media are not applying investigative journalism and watchdog the public property. They have no role in exposing corruptions and crimes committed on public properties. Practically, they are also event oriented and Addis Ababa based one side story tellers more than the government media. Resource limitation (human, Material and financial), wrong perception of government PR officers and officials towards private media and prohibition of information, government tax and null incentive for private media, lower level of public culture for information exchange and freedom of expression are the top line challenges which affected their coverage of development issues of the private media