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Catechols are important precursors in the production of pharmaceuticals but they are associated with many problems such as their instability and susceptibility to oxidation and polymerisation. In order to avoid these problems, acylcatechols are used. However, disadvantages exist in the industrial...

the study addresses the problem of cost containmentfacing zambia consolidated copper mines limited by focusing on the Nchanga

The Post Jomtien Conference of March 1990, in Thailand, has seen the Zambian Government directing its efforts to providing quality education to all, for economic and social reasons. However, these efforts have been constrained by problems such as lack of qualified teaching staff and teaching and...

Zambia experiences an annual woodland loss of 0.5 percent. Much of this is from areas around urban areas. Woodland loss may lead to both environmental and socio-economic problems. The purpose of this study was to investigate the impact of the growth of Kasama on the surrounding indigenous...

There is growing concern in most developing countries regarding the use of technologies that are inappropriate to local conditions. In the area of treating surface water to drinking water quality, consideration of alternative treatment methods is receiving great attention particularly with regard...

The proportion of the mineral phases in the Chinkombe ilmenite was estimated by point counting under under a Reflected Light Microscope.Reduction experiments were carried out on pellets made from mixtures of the ore and graphite in predetermined proportions, in the temperature range of 1173 to...

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...