Browsing College of Natural Sciences by Issue Date

Inflluence of humic and low molecular weight organic acids on arsenic mobility in contaminated soils Article

Dejene A. Tessema (1999)

Bedrock mineralogy versus soil total Arsenic, speciation and plant avialability Article

Dejene Ayele; Abera Mogessie; Kebede Hailu (2002)

Determination of levels of pb and cr in water sample and its Removal by adsorption onto activated carbon prepared From pine apple peel Thesis

Leta Shifera (2004-10)

Heavy metal contamination of water could occur anywhere at resources, course of distribution or consumption place. Precise knowledge on amount and type of water pollutants especially heavy metal are essential to protect ...

Freeze-drying of sol–gel encapsulated recombinant bioluminescent E. coli by using lyo-protectants Article

Dejene A. Tessema; Rachel Rosen; Rami Pedazu (2005-08)

Toxicity sensing by live microorganisms has attracted considerable attention during the last decade. These sensors exhibit a non-specific, relatively fast response to changes in water quality or to physiological stress ...

Microbial quality of Jimma water supply Article

Sofonias Kifle; Tsegaye Gadisa (2006-09)

A cross-sectional study on drinking water quality in Jimma town was conducted from February to May 2005. Twelve water samples were collected and analyzed by different microbiological analysis. Microbiological analysis of ...

Screening rhizobacteria for biological control of Ralstonia solanacearum in Ethiopia Article

Lemessa F.; Zeller W. (2007)

Bacterial wilt caused by Ralstonia solanacearum (Smith) has become a severe problem mainly on potato and tomato in Ethiopia and no effective control measure is available yet. To explore possibilities for the development ...

Human myiasis in an endemic area of Southwestern Ethiopia: Prevalence, knowledge, perceptions and practices Article

Worku Legesse; Solomon Gebre; Delenasaw Yewhalaw (2007)

Human subcutaneous myiasis is an endemic, understudied disease in Ethiopia. Objective: The aim of this study was to assess knowledge, perceptions and practices in different urban and rural communities of Jimma Zone, ...

Student Centred Teaching and Learning Experience from the External World Article

Dejene Ayele; Kees Schippers (2007-03)

Composition of coffee shade tree species and density of indigenous arbuscular mycorrhizal fungi (AMF) spores in Bonga natural coffee forest, southwestern Ethiopia Article

Diriba Muleta; Fassil Assefa; Sileshi Nemomissa (2007-06)

The composition of coffee shade tree species and density of arbuscular mycorrhizal fungi (AMF) spores in Bonga natural coffee forest of southwestern Ethiopia were investigated. This study is the first report on AMF populations ...

Traditional medicinal plant knowledge and use by local healers in Sekoru District, Jimma Zone, Southwestern Ethiopia Article

Delenasaw Yewhalaw; Haile Yineger (2007-06)

The knowledge and use of medicinal plant species by traditional healers was investigated in Sekoru District, Jimma Zone, Southwestern Ethiopia from December 2005 to November 2006. Traditional healers of the study area were ...

In vitro antagonism of rhizobacteria isolated from coffea arabica l. Against emerging fungal coffee pathogens Article

D. Muleta; F. Assefa (2007-09)

In vitro antagonistic effects of rhizobacteria associated with Coffea arabica L. against some fungal coffee pathogens were studied. The aims were to screen indigenous coffee-associated isolates for their inherent antagonistic ...

Evaluation of fixed oil from seeds of maesa lanceolata (myrsinaceae) for phytochemical constituents, physicochemical characteristicsand biological activity Thesis

Wubayehu Sewagegn (2007-10)

The present study reports the yield, physicochemical properties, phytochemical constituents and biological activities (insecticidal & antimicrobial) of M. lanceolata seed oil and compounds isolated from it. The oil was ...

Evaluation on Potential of Wild Hosts As Trap Plants for Managing Gramineous Stemborers in Maize BasedAgroecosystem Article

Delenasaw Yewhalaw; Emana Getu; Emiru Seyoum (2008)

As part of habitat management system to control cereal stemborers, various wild hosts used as trap plants were studied during the dry season from November 2003 to March 2004 at Melkassa, central Ethiopia. Five wild hosts ...

Woody Species Composition and Structure of the Gurra Farda Forest, Snnpr, South Wastern Ethiopia Article

Kitessa Hundera; Bishaw Deboch (2008-03)

Deforestation have been taking place in Ethiopia for hundreds of years. The chief reasons given for reduction of the forest area are uncontrolled exploitation, shifting cultivation, forest fires and the expansion of ...

Ethnomedicinal plant knowledge and practice of the Oromo ethnic group in southwestern Ethiopia Article

Haile Yineger; Delenasaw, Yewhalaw; Demel, Teketa (2008-04)

An ethnomedicinal study was conducted to document the indigenous medicinal plant knowledge and use by traditional healers in southwestern Ethiopia from December 2005 to November 2006. Data were collected from 45 randomly ...

An ethnobotanical study of medicinal plants in Mana Angetu District, southeastern Ethiopia Article

Ermias Lulekal; Ensermu Kelbessa2 (2008-04)

This study documents indigenous medicinal plant utilization, management and the threats affecting them. The study was carried out in Mana Angetu district between January 2003 and December 2004. Ethnobotanical data were ...

Assessment of knowledge and usage custom of traditional insect/mosquito repellent plants in Addis Zemen Town, South Gonder, NorthWestern Ethiopia Article

Kaliyaperumal Karunamoorthi; Adane Mulelam (2008-05)

Aim of the study: A cross-sectional descriptive study was carried out to assess the knowledge and usage custom of traditional insect/mosquitoes repellent plants among the inhabitants in Addis Zemen Town, Ethiopia. Materials ...

Microbiological safety of Fruit Juices served in Cafes/Resturants, Jimma Town, Southwest Ethiopia Article

Tsige Ketema MSc; Tsegaye Gaddisa MSc; Ketema Bacha (2008-11)

Traditionally, fruit products have been regarded as microbiologically safer than other unprocessed foods. However, many outbreaks of human infections have been associated with the consumption of contaminated fruit juices. ...

Characterization of Rhizobacteria isolated from Wild Coffea arabica L. Article

Diriba Muleta; Fassil Assefa; Karin Hjort (2009)

Malaria and water resource development: the case of Gilgel-Gibe hydroelectric dam in Ethiopia Article

Delenasaw, Yewhalawl; Worku, Legesse; Helmut, Kloos (2009-01)

Ethiopia plans to increase its electricity power supply by five-fold over the next five years to fulfill the needs of its people and support the economic growth based on large hydropower dams. Building large dams for ...

Browsing College of Natural Sciences by Issue Date

Browsing College of Natural Sciences by Issue Date

Search IR

Browse

All of IR

This Community

My Account