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Antimicrobial activity of the methanolic extracts and compounds from Treculia obovoidea (Moraceae)
(Elsevier Ireland Ltd. www.elsevier.com/locate/jethpharm, 2007)
The crude extract from Treculia obovoidea was subjected to purification by repeated chromatography. Eight compounds were isolated from
Treculia obovoidea and identified as Psoralen (1), Bergapten (2), 7-methoxycoumarin ...
Seed-bank analysis for herbaceous species along grazing gradients in the Sandveld and Hardveld grazing areas of Botswana
(Botswana College of Agriculture, http://www.bca.bw/Research/bojaasBca/InstructionToAuthors.htm, 2007)
Grasses and forbs in Southern Africa have been understudied in terms of species richness and factor that affect diversity patterns. To gain a better understanding of factors affecting patterns of herbaceous plant species ...
The role of human factors in the degradation of natural resources in and around the Okavango Delta, Botswana
(Taylor & Francis, http://www.tandf.co.uk/journals/titles/00207233.asp, 2007)
This paper draws on archival information, anecdotal evidence from local communities, in situ observations
during field investigation and multi-date remotely sensed satellite imagery. The authors
investigated the role of ...
Effects of different types of water decoctions of fruit of Melia azedarach on glucose induced hyperglycemia, liver transaminases, lipid peroxidation and reduced glutathione in normal albino rats
(Academic Journals http://www.academicjournals.org/SRE/index.htm, 2007)
Four types of extracts were prepared from Melia azedarach fruits. These were methanol extract and
three types of water decoctions; urine treated water decoction (UE), milk treated water decoction (ME)
and plain water ...
Shallow seismic refraction and magnetic studies at Lake Ngami, The Okavango Delta, Northwest Botswana
(Elsevier www.elsevier.com/locate/jafrearsci, 2007)
A seismic refraction analysis was carried out on data acquired on an 8.5 km profile at Lake Ngami, NW Botswana, to determine the
structure and stratigraphy underlying the lake. The seismic spread comprised a 48-channel ...
String Homology of a Product of Spheres and the Witt Algebra
(Nova Science Publishers, Inc.; www.novapublishers.com; reprinted with permission from Nova Science Publishers, Inc., 2007)
Let X be a finite product of even dimensional spheres, we show that the string
homology of X contains a finite product of copies of the Witt Lie algebra.
Fire and its influence on microbial community structure and soil biochemical properties in the Okavango Delta, Botswana
(Academic Journals. http://www.academicjournals.org/SRE, 2007)
The influence of wild fires on microbial community structure, soil organic matter, sulphur oxidising and
nitrifying microbial populations in the floodplains of the Okavango Delta of Botswana was assessed.
Microbial ...
Rotenoid derivatives and other constituents of the twigs of Millettia duchesnei
(Elsevier Ltd. www.elsevier.com/locate/phytochem, 2007)
Three prenylated rotenoids, elliptol, 12-deoxo-12a-methoxyelliptone and 6-methoxy-6a,12a-dehydrodeguelin were isolated from the
twigs of Millettia duchesnei, together with the known compounds, 6a,12a-dehydrodeguelin, ...
Plant alkali content and radio wave communication efficiency in high intensity savanna wildfires
(Elsevier Science Ltd. www.elsevier.com/locate/jastp, 2007)
The flames of wildfires are weakly ionized gas. The ionization is mainly due to omnipresent alkali and alkaline earth
metal species that are emitted from thermally decomposing plant structure into the flame during a ...
Influence of sodium adsorption ratio on sodium and calcium breakthrough curves and saturated hydraulic conductivity in soil columns.
(Csiro, http://www.publish.csiro.au/nid/84.htm, 2007)
The paper examines the effects of electrolyte concentration and sodium adsorption ration (SAR) on the relative saturated hydraulic conductivity (RHC) and the ionic behaviour of calcium (Ca) and sodium (Na) ions in the Na-Ca ...