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Drought has been one of the world's greatest mysteries, and it continues to have many puzzling features. It has been a part of our environment since the beginning of recorded history and humanity's survival may be testimony only to its capacity to endure this climatic phenomenon. Recent droughts...

ML3 coordination complexes where (M = V3+, Cr3+, Mn3+ and L = phenacetylidene -2, 2, 5, 5 - tetramethyl -3- imidazolidine -1- oxyl free radical ligand), have been synthesized. Vanadium(III) complex was prepared by refluxing a mixture of Vanadium Pentoxide and the ligand in ethanol containing...

An account of the reaction of {(h -C,-H,)-M ?(CO) } and {(h -C5H.) M (CO) } (M=Mo,W) with aromatic and non-aromatic thiones to give mostly complexes of general molecular formula {(h -CJ (CO)4U (M=Mo, W; L=Thione) is given. {(h-C^CH^^o^O^) and {(h -CCH. CH_)/^lo/,(CO)/ } react with thiones in a...

The continuous quest for modernization and industrialization has brought a great challenge upon the third world countries such as Zambia in that these countries have to keep on importing production machinery whose spares cannot be obtained locally but from outside. This problem has been...

The Zambian Copperbelt is one of the great metallogenic provinces in the world and the production of copper and cobalt from sedimentary rocks, locally metamorphosed of the Lower Roan Group of the Supergroup in the Katanga Basin is the main business. It is well known fact that the Katanga Basin is...

The aim of this study was to examine the extent to which the University of Zambia (UNZA) Library is addressing the Information Technology (IT) sustainability challenges with the objective of establishing a feasible IT sustainability model of approach that can be adopted by the Library. Using the...

In this study a case for the automation of circulation control is made.The philosophy of circulation control is presented.A circulation control model upon which various manual-based and computer-based systems are compared for effectiveness, is developed.A general review of the environment of the...

The decline is a major excavation in metalliferous mining since it provides the main means of access to the underground and serves as a haulage route for underground trucks. However, conventional mining of the decline to access the ore body poses economic and technical challenges that require...

Geological information has become very essential today in Zambia than ever before. This is in the wake of the mining policy that is intended to woo investors in the mining industry. The Zambian government has since 1990 embarked on the Privatisation exercise of all state owned mining...

Environmental impacts of coal mining and processing operations on land, water and air are identified, measured, evaluated, interpreted and discussed. The impacts of these operations are scarring most of the areas, land surface degradation, pollution of surface water bodies as well as air...