Search
Now showing items 191-200 of 204
Kinetic studies on the reactions of some tetrakis(arylisocyanide)cobalt(II) complexes with pyridine in 2,2,2-trifluoroethanol
(Springer, http://www.springer.com/chemistry/journal/11243, 2006)
The interaction of pyridine with four tetraki(arylisocyanide)cobalt(II) complexes, [Co(CNR)4(ClO4)2] R = 2,6-
Me2C6H3 (A), 2,4,6-Me3C6H2 (B), 2,6-Et2C6H3 (C) and 2,6-iPr2C6H3 (D), have been studied in 2,2,2-trifluoroeth ...
Effect of composition on optical constants of Pb: GeSbTechalcogenide thin films
(2008)
Optical properties of Pb doped ternary Ge-Sb-Te chalcognide films prepared by thermal evaporation have been studied in
the visible and near-infrared spectral regions. The straightforward analysis proposed by Swanepoel has ...
Carriage of micro-organisms by domestic cockroaches and implications on food safety
(ICIPE - African Insect Science for Food and Health, http://journals.cambridge.org/action/displayJournal?jid=JTI, 2006)
Domestic cockroaches Blattella germanica were trapped from various homes in
Gaborone, Botswana using ‘Dyroach’ traps. Isolations of bacteria, yeasts and moulds were
done on external body parts and on the faecal pellets ...
Photochromism, anomalous multi-banded fluorescence and laser properties of some amino- and tosyl-amino derivatives of oxadiazole
(Elsevier Science Ltd. www.elsevier.com/locate/saa, 2006)
The multi-banded fluorescence and laser properties of 11 new amino- and tosylamino derivatives of 2,5-di(phenyl)-1,3,4-oxadiazole and
oxadiazole in various solvents at 293K are reported. All the compounds investigated ...
Antibacterial Diterpenes from the Roots of Ceriops tagal
(Natural Product Inc. http://www.naturalproduct.us/, 2008)
Investigation of the roots of Ceriops tagal led to the isolation of a new isopimarane, together with the known diterpenes
isopimar-8(14)-en-15,16-diol and erythroxyl-4(17),15(16)-dien-3-one. The structure of the new ...
The theory of attenuated total reflection by surface polaritons on one-sided corrugated thin films
(Elsevier Science Ltd. http://www.elsevier.com/wps/find/journaldescription.cws_home/505712/description#description, 2003)
The experimental techniques of attenuated total reflection (ATR) and grating coupling were originally employed
separately as probes for polaritons. The combined technique of these methods into a single probe is a very ...
Trace enrichment of metal ions in aquatic environments by Saccharomyces cerevisiae
(Elsevier; www.elsevier.com/locate/talanta, 2004)
[Please note that chemical formulae do not display correctly in this abstract]. Sorption properties of baker's yeast cells, characterised as Saccharomyces cerevisiae were evaluated for trace enrichment of metal ions: Cd2+, ...
Bis(pyrazolyl) palladium(II), platinum(II) and gold(III) complexes: Syntheses, molecular structures and substitution reactions with L-cysteine
(Elsevier Science Ltd, www.elsevier.com/locate/ica, 2009)
A series of pyrazolyl palladium(II), platinum(II) and gold(III) complexes, [PdCl2(3,5-R2bpza)] {R = H (1), R = Me (2), bpza = bis-pyrazolyl acetic acid}, [PtCl2(3,5-R2bpza)] {R = H (3a), R = Me (4)}, [AuCl2(3,5-
R2bpza)]Cl ...
Localized wood resource depletion in Botswana: Towards a demographic, institutional and cosmovisional explanation
(Taylor & Francis Ltd, http://www.tandf.co.uk/journals/cepe, 2002)
In sub-Saharan Africa, communal land resource utilization and management has reflected changes in sociocultural belief systems, population dynamics, and
modes of societal administration and regulation. This paper, based ...
Potential effects of prolonged ultraviolet radiation exposure in plants: chloroplast DNA analysis
(IDOSI Publications, http://idosi.org/, 2007)
The present study on the Namaqualand daisy, Dimorphotheca sinuata sought to address two main questions: - first whether the natural populations show any evidence of variation in the chloroplast genome, and secondly if the ...