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Chemical constituents of Treculia acuminata and Treculia africana (Moraceae)
(Elsevier Ltd. www.elsevier.com/locate/biochemsyseco, 2007)
Three species of the genus Treculia namely, Treculia acuminata Baill., Treculia africana Decne ex. Treà ´cul and
Treculia obovoidea N.E.Br. grow in the humid rain forest of southwest Cameroon. They are also widely ...
Urban environmental management in Botswana:towards a theoretical explanation of public policy failure
(Springer http://www.springerlink.com/index/05CM7XY4DJGUEUQL.pdf, 2001)
For the last three and half decades, Botswana has been widely acclaimed to be one of sub-Saharan Africa's longest and most stable liberal democracies, coupled with and sustained by a growing economy. One of the major ...
Epoxylignans from the seeds of Centaurea cyanus (Asteraceae)
(Elsevier Ltd. www.elsevier.com/locate/biochemsyseco, 2004)
A study focusing on Centaurea cyanus L. (family: Asteraceae alt. Compositae), otherwise known as "cornflower" or "bachelor's button. The seed is purchased from B & T World Seeds sarl, Pauguignan, 34210 Olonzac, France and ...
Ages of detrital zircon grains from Neoproterozoic siliciclastic rocks in the Shakawe area: implications for the evolution of Proterozoic crust in northern Botswana
(Geological Society of South Africa. http://sajg.geoscienceworld.org/, 2000-06)
The Precambrian rocks of northern Botswana comprise poorly exposed igneous complexes, high-grade metamorphic
rocks, as well as sedimentary sequences including mainly siliciclastic and carbonate rocks. New U-Pb SHRIMP
data ...
The influence of the Tbetta level upon fluorescence and laser properties of aromatic compounds
(Elsevier Science Ltd. www.elsevier.com/locate/saa, 2004)
The fluorescence and laser properties of seven specially chosen aromatic compounds are studied at 293 ◦C. The quantum yield of fluorescence,
γ, decay times, τf , of the deaerated and non-deaerated solutions are measured. ...
The Free-Radical Copolymerization of Difurylmethane with Maleic anhydride
(South African Journal of Chemistry. <http://ejour.sabinet.co.za/images/ejour/chem/chem_v55_a1.pdf>., 2002)
The copolymerization of difurylmethane with maleic anhydride in the presence of
azobisisobutyronitrile as an initiator has been investigated at 65 °C, 72 °C and 85 °C in
different solvents. Reaction feeds containing 85 ...
The first 60-O-sulfated phenylanthraquinones: isolation from Bulbine frutescens, structural elucidation, enantiomeric purity, and partial synthesis
(Elsevier Ltd.http://www.elsevier.com/wps/find/journaldescription.cws_home/942/description#description, 2005)
From the roots of Bulbine frutescens, the first sulfated phenylanthraquinones were isolated, together with their known sulfate-free
analogs. Their structures were elucidated by spectroscopic and chiroptical methods, by ...
Gravity anomaly patterns in the south-central Zimbabwe Archaean craton and their geological interpretation
(Elsevier Science Ltd. www.elsevier.com/locate/jafrearsci, 2008)
The granite-greenstone terrain of south-central Zimbabwe, encompassing the Belingwe (Mberengwa) greenstone belt and sections of
the Great Dyke, provides important constraints on models for the evolution of the Zimbabwe ...
Antimicrobial activity of the extract from the twigs of Dorstenia Elliptica (Moraceae)
(Pharmacologyonline. http://www.pharmacologyonline.org/, 2007)
The crude extract from the twigs of Dorstenia elliptica (DET) as well one of the five compounds
isolated from this extract namely O-[3-(2, 2-dimethyl-3-oxo-2H-furan-5-yl)-3-
hydroxybutyl]bergaptol (5) were tested for ...
Phase segregation in Pb:GeSbTe chalcogenide system
(EDP Sciences. http://www.epjap.org/, 2008)
Effect of Pb substitution on the amorphous-crystalline transformation temperature, optical band
gap and crystalline structure of Ge2Sb2Te5 has been studied. In Pb:GeSbTe chalcogenide films prepared by
thermal evaporation, ...