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Now showing items 141-150 of 204
Vulnerability of traditional beef sector to drought and the challenges of climate change: the case of Kgatleng District, Botswana
(Academic journals http://hdl/handle.net/10289/973, 2008)
Cattle’s rearing in Botswana is undertaken in two sectors: the communal and commercial. The
communal sector is exclusively free range and therefore depends on biomass production. This makes
the systems highly susceptible ...
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 ...
Work in Thermodynamics
(Chemic Publishing Co., http://www.asianjournalofchemistry.com/, 2006)
The expression for mechanical work obtained in the expansion of a gas commonly used in physical chemistry textbooks is critically examined. The mathematical form of the first law of thermodynamics is arrived at by a procedure ...
A ca. 200Ma hiatus between the Lower and Upper Transvaal Groups of southern Africa: SHRIMP U–Pb detrital zircon evidence from the Segwagwa Group, Botswana: Implications for Palaeoproterozoic glaciations
(Elsevier www.elsevier.com/locate/epsl, 2006)
The Segwagwa Group of southeastern Botswana, a correlate of the Pretoria Group of the Transvaal Supergroup of South Africa, consists of a major sequence of siliciclastic sedimentary rocks, minor carbonates and basaltic to ...
The Okavango giant mafic dyke swarm (NE Botswana): its structural significance within the Karoo Large Igneous Province
(Elsevier www.elsevier.com/locate/jsg, 2005)
The structural organization of a giant mafic dyke swarm, the Okavango complex, in the northern Karoo Large Igneous Province (LIP) of
NE Botswana is detailed. This N1108E-oriented dyke swarm extends for 1500 km with a ...
Desiccation of the Gomoti River: Biophysical process and indigenous resource management in Northern Botswana
(Elsevier http://www.doi:10.1016/j.jaridenv.2005.02.001, 2005)
For at least 200 years, Gomoti River people and their neighbours lived interactively with the Okavango flood pulse system, travelling widely in dugout canoes, practicing flood recession agriculture, fishing, hunting, and ...
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 ...
Major and trace element geochemistry of plutonic rocks from Francistown, NE Botswana: evidence for a Neoarchaean continental active margin in the Zimbabwe craton
(Elsevier www.elsevier.com/locate/lithos, 2003)
The Neoarchaean Tati granite–greenstone terrane occurs within the southwestern part of the Zimbabwe craton in NE
Botswana. It comprises 10 intrusive bodies forming part of three distinct plutonic suites: (1) an earlier ...
Sediment-hosted Zn–Pb–Cu deposits in the Central African Copperbelt
(Elsevier www.elsevier.com/locate/oregeorev, 2009)
Stratabound epigenetic sulphide Zn–Pb–Cu ore deposits of the Central African Copperbelt in the Democratic
Republic of Congo and Zambia are mostly hosted in deformed shallow marine platform carbonates and
associated ...
Basement control on dyke distribution in Large Igneous Provinces: Case study of the Karoo triple junction
(Elsevier www.elsevier.com/locate/epsl, 2006)
Continental flood basalts consist of vast quantities of lava, sills and giant dyke swarms that are associated with
continental break-up. The commonly radiating geometry of dyke swarms in these provinces is generally ...