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Teachers’ experiences with an adapted IGCSE physics syllabus in Botswana
(Elsevier, www.elsevier.com/locate/ijedudev, 2005)
This paper focuses on teachers’ experiences with implementing a modified International General Certificate of
Secondary Education (IGCSE) physics syllabus in Botswana. The syllabus, characterised by a new organisational ...
The current-induced critical field of a type II superconducting cylindrical filament
(Elsevier Science Ltd. www.elsevier.com/locate/physc, 2002-08-15)
The azimuthal surface nucleation field of an infinitely long type II superconducting cylindrical filament is calculated
from the linearized Ginzburg-Landau equation for the order parameter. A current is thought to be ...
Thermal analysis and annealing temperature dependence of electrical properties in Sn10Sb20Se70 glassy semiconductor
(Springer Netherlands, 2008)
The melt-quenched Sn10Sb20Se70 sample in the
bulk form was used to prepare films on well-cleaned glass
substrates by thermal evaporation method. The activation
energy for glass transition (apparent) and crystallization
has ...
Investigating evidence for UV-B induced mutagenesis in dimorphotheca sinuata using the 18S rDNA and rbcL gene sequences
(American-Eurasian Network for Scientific Information. http://www.aensi.org/aeb_online.html, 2008)
The nuclear 18S rDNA and chloroplast encoded rbcL gene sequences were used to investigate the evidence of
residual UV-B induced mutagenesis in Dimorphotheca sinuata plants. The probes were generated by the polymerase chain ...
Effective atomic numbers for W/Cu alloy for total photon attenuation
(Elsevier Science Ltd. www.elsevier.com/locate/radphyschem, 2004)
The study of interaction of photons with matter finds
wide application in areas such as industry, medical
radiation dosimetry and radiation shielding. A careful review of these measurements indicates that
the studies ...
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.
Evaluation of methods for the isolation, detection and quantification of cyanobacterial hepatotoxins
(Elsevier Ltd. www.elsevier.com/locate/aquatox, 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 ...
Building computer graphics education in southern Africa
(Elsevier Science Ltd, http://www.elsevier.com/locate/cag, 2003)
This note discusses issues in building the educational base for computer graphics growth in developing countries,
particularly in southern Africa. It is based on a delegation’s visit to southern Africa in the spring of ...
Antinociceptive and anti-inflammatory effects of Dorstenia barteri (Moraceae) leaf and twig extracts in mice
(Elsevier Ltd. www.elsevier.com/locate/jethpharm, 2004)
The present studywas undertaken to investigate the antinociceptive and anti-inflammatory activities of the leaf and twig extracts of Dorstenia
barteri (Moraceae) in mice. Both the leaf and twig extracts of Dorstenia barteri ...
Prenylated chalcones, flavone and other constituents of the twigs of Dorstenia angusticornis and Dorstenia barteri var. subtriangularis
(Elsevier Ltd. www.elsevier.com/locate/phytochem, 2004)
The twigs of Dorstenia angusticornis and Dorstenia barteri var. subtriangularis yielded 16 compounds. Two novel diprenylated
chalcones: 3,50-di-(2-hydroxy-3-methylbut-3-enyl)-4,20,40-trihydroxychalcone, 3, 4-(2,2-dimeth ...