RESEARCH ARTICLES

Mathematics

Regularity theorem for functions that are extremal to Paley inequality 

143—150

Seid Mohammed

Abstract

Hydrogeology

Application of isotope and water balance approaches for the study of the hydrogeological regime of the Bishoftu crater lakes, Ethiopia 

151—166

Seifu Kebede, Tenalem Ayenew and Mohammed Umer

Abstract

Numerical groundwater flow modeling of the central main Ethiopian Rift lakes basin 

167—184

Tenalem Ayenew

Abstract

Microbiology

Attachment study of Agrobacterium tumefaciens to tef [Eragrostis tef (Zucc.) Trotter], yam spp., and tobacco (Nicotiana tabaccum L.) explant 

185—195

Frew Mekbib , Vicky Buchanan-Wollaston and Sinclair H. Mantell

Abstract

Studies of rhizobium inoculation and fertilizer treatment on growth and production of faba bean (Vicia faba) in some 'yield-depleted' and 'yield sustained' regions of Semien Shewa 

197—211

Ayneabeba Adamu, Fassil Assefa, Asfaw H/Mariam and Endashaw Bekele

Abstract

Ecology

An ecological study of the vegetation of Gambella Region, Southwestern Ethiopia 

213—228

Tesfaye Awas, Tamrat Bekele and Sebsebe Demissew

Abstract

Parasitology

Host range determination of tsetse fly Glossina morsitans submorsitans by bloodmeal analysis in the upper Didessa River valley (Western Ethiopia) 

229—238

Habtamu Belete, Getachew Tikubet, Beyene Petros and E.K. Kang'ethe

Abstract

Fisheries Biology

Food and feeding habits of the catfish, Bagrus docmak (Forsskal, 1775) (Pisces:Bagridae) in Lake Chamo, Ethiopia 

239—254

Hailu Anja and Seyoum Mengistou

Abstract

Breeding season, maturation and fecundity of Oreochromis niloticus L. (Pisces: Cichlidae) in Lake Chamo, Ethiopia 

255—264

Yirgaw Teferi, Demeke Admassu and Seyoum Mengistou

Abstract

Animal Science

Effects of dietary crude protein level on the digestibility of nutrients, excretion of fecal N and urinary N-fractions and the kinetics of ¹⁵N labeled urea in growing male goat kids 

265—282

Tegene Negesse , M. Rodehutscor and E. Pfeffer

Abstract

SHORT COMMUNICATION

The potential mutagenic effect of the leachates of rural solid waste landfill on Allium cepa (L.) 

283—291

Bakare, A. A. Adekunle

Abstract

BOOK REVIEWS 

293—302

Guide to authors and Acknowledgements 

303—308