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Now showing items 171-180 of 204
Soil resources distribution, woody plant properties and land use in a lunette dune-pan system in Kalahari, Botswana
(Academic Journals, http://www.academicjournals.org/SRE, 2008)
The distribution of selected soil properties, selected woody vegetation properties, and land use in a
lunette dune-pan system were investigated in the Sekoma area, which is located within the IGBP Kalahari Transect (KT) ...
Environmental chemistry and mineralogy of particulate air matter around Selebi Phikwe nickel–copper plant, Botswana
(Elsevier www.elsevier.com/locate/mineng, 2004)
This study aimed at chemically and mineralogically characterizing whole particulate air matter (PAM) occurring at the Selebi
Phikwe nickel–copper (Ni–Cu) area in Botswana, and postulating its possible environmental ...
Thermal annealing dependence of some physical propertiesof Bi-substituted Sn–Sb–Se glassy thin films
(EDP Sciences, 2009)
Bulk glasses of the Sn10Sb20−xBixSe70 (0 x 8) system were prepared by the conventional
melt quenching technique. Thin films were prepared by the thermal evaporation technique on glass
substrates. Appearance of some ...
Cyclic voltammetric studies of tris(alkylisocyanide)-bis(triarylphosphine)cobalt(II) and tris-(alkylisocyanide)bis(triarylphosphine)cobalt(I) complexes exhibiting synthetic interconvertability
(NRC Research Press, http://www.nrcresearchpress.com/loi/cjc, 2003)
Nine pairs of corresponding [CoI(CNR)3(PR3 ′ )2]X, [CoII(CNR)3(PR3 ′ )2]X2 complexes — where X = ClO4,
BF4; CNR = CNCMe3, CNCHMe2, CNC6H11, CNCH2Ph; PR3′ = PPh3, P(C6H4Me-p)3, P(C6H4OMe-p)3 — have been studied using cyclic ...
On semi-parallel lightlike hypersurfaces of indefinite Kenmotsu manifolds
(Birkhäuser Basel. http://www.springerlink.com/content/107580/?p=1930c3cc1de944feae211b785b3b42a4&pi=0, 2009)
We study semi-parallel lightlike hypersurfaces of an indefinite
Kenmotsu manifold, tangent to the structure vector field. Some Theorems
on parallel and semi-parallel vector field, geodesibility of lightlike
hypersurfaces ...
Intergenerational bargaining and wealth flows in the era of HIV/AIDS: emerging trends in Old Naledi-Gaborone, Botswana
(Taylor & Francis (Routledge), http://jir.ucsur.pitt.edu/, 2008)
Based on the intergenerational wealth flows conceptual framework, this paper investigates how the AIDS pandemic threatens to disrupt the transfer of resources between generations by using a typical low income urban area ...
Volumetric Properties of (Difurylmethane + Alkan-1-ol) Binary Mixtures at 298.15 K
(Journal of Solution Chemistry., 2006)
Densities (ρ) of the binary systems of {difurylmethane+(ethanol or propan-1-
ol or butan-1-ol or pentan-1-ol or hexan-1-ol)} have been measured with an Anton Paar
DMA 4500 vibrating-tube densimeter over the entire ...
Evaluation of methods for the isolation, detection and quantification of cyanobacterial hepatotoxins
(Elsevier Ltd. http://www.elsevier.com/wps/find/journaldescription.cws_home/505509/description#description, 2006)
Cyanobacterial hepatotoxins such as microcystins and nodularins have been responsible for the poisoning of both animals and humans who
ingest or come into contact with toxic blooms. They are extremely stable in water due ...
Improved particle swarm algorithms for global optimization
(Elsevier Ltd. www.elevier.com/locate/amc, 2008)
Particle swarm optimization algorithm has recently gained much attention in the global optimization research community.
As a result, a few variants of the algorithm have been suggested. In this paper, we study the efficiency ...
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 ...