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Now showing items 21-30 of 32
The Neoproterozoic Mwashya–Kansuki sedimentary rock succession in the central African Copperbelt, its Cu–Co mineralisation, and regional correlations
(Elsevier www.elsevier.com/locate/gr, 2007)
Rocks of the Neoproterozoic Mwashya Subgroup (former Upper Mwashya) form the uppermost sedimentary unit of the Roan Group. Based on
new field and drill hole observations, the Mwashya is subdivided into three formations: ...
Understanding Nickel Thin Film crystallization using X-Ray Diffractometry
(Bioline International. http://www.ajol.info/journal_index.php?jid=90, 2007-06)
Normal, helical and zigzag deposited Ni films were produced by letting a vapour stream of source
material impinge on Corning 1737 glass substrates at oblique incidence while rotating the substrate during deposition.
Films ...
Mineralogical appraisal of sediments of duricrust suites and pans around Jwaneng area, Botswana
(Bioline http://www.bioline.org, 2007)
A mineralogical investigation of duricrust suites in Letlhakeng valley, and five pans around
Jwaneng in Botswana was undertaken in order to know the mineral assemblages and infer on their landscape formation. In Letlhakeng, ...
Rainfall interpolation using a remote sensing CCD data in a tropical basin – A GIS and geostatistical application
(Elsevier, www.elsevier.com/locate/pce, 2007)
This paper is aimed at developing a geostatistical model to improve interpolated annual and monthly rainfall variation using remotely-
sensed cold cloud duration (CCD) data as a background image. The data set consists of ...
Antimicrobial activity of the methanolic extracts and compounds from Treculia africana and Treculia acuminata (Moraceae)
(Elsevier Ltd. www.elsevier.com/locate/sajb, 2007)
The crude methanolic extracts from Treculia africana and Treculia acuminata, three compounds isolated from T. africana and identified as,
Phyllocoumarin (1), Catechin (2) and 6, 9-dihydroxy-megastigmane-3-one (3), four ...
Two new anthraquinones from Gladiolus psittascinus
(Elsevier Ltd. www.elsevier.com/locate/biochemsyseco, 2007)
Gladiolus psittascinus HOOK, an herbaceous plant, is propagated by its bulb. This onion-looking plant occurs in
rocky places in western province of Cameroon. The bulbs are used to treat asthma, gonorrhoea, diabetes and ...
Monitoring maternity mortality in Botswana
(Elsevier, www.rhmjournal.org.uk, 2007)
This paper describes the maternity monitoring system in Botswana, developed in 1998,
and the main methods used: maternal death and morbidity reviews at service delivery level, analysis
by the National Maternal Mortality ...
Problems and prospects for the development of urban tourism in Gaborone and Maun, Botswana
(Taylor & Francis (Routledge), http://www.informaworld.com/smpp/title~content=t713413745, 2007-12)
This paper draws on the tourism system framework to examine the problems and prospects of
urban tourism in Gaborone and Maun, Botswana. These are young centres that have a growing
number of tourist attractions, facilities ...
Lanneanol: A new cytotoxic dihydroalkylcyclohexenol and phenolic compounds from Lannea nigritana (Sc. Ell.) Keay
(Elsevier Ltd. www.elsevier.com/locate/biochemsyseco, 2007)
The genus Lannea belongs to the family Anacardiaceae and consists of 40 species. Lannea nigritana (Sc. Elliot)
Keay is a small tree of 3e6 m of height found in the tropical rain forest (Berhaut, 1971; Letouzey, 1972). It ...
Stochastic estimator-based wireless traffic control schemes
(Science Publications, http://www.scipub.org/scipub/c4p.php?j_id=JCS, 2007)
Recent works on Available Bit Rate (ABR) traffic control have generated efficient control schemes for ABR traffic on Asynchronous Transfer Mode (ATM) network. This study examines the
improved performance envisaged if these ...