University of Botswana Research, Innovation and Scholarship Archive: Recent submissions
Now showing items 1401-1420 of 2188
-
Training pre-service teachers in environmental education: the case of colleges of education in Botswana
(IJSRE, http://www.ijsre.com, 2012-03)Botswana’s 1994 Revised National Policy on Education of 1994 (RNPE, 1994) recommended that colleges of education in Botswana train teachers in Environmental Education (EE) methodologies using the infusion approach. To ... -
The influence of school and community choral contests in the introduction of music education in Botswana schools
(IJSRE, http://www.ijsre.com, 2012-06)This article examines choral contests in Botswana’s music education. Choral contests have been conducted for many years in Botswana and predate the introduction of formal music teaching in schools. These early contests ... -
Democratic education in the classroom: an education law perspective
(JEAPS, http://www.academicjournals.org/ijeaps, 2010-04-20)This paper sought to unpack the extent of students’ democratic involvement in the teaching and learning processes. Data that were analyzed were obtained from 253 teachers and 194 students from 15 secondary schools in ... -
Intermediate and ion-pair formation in the outer-sphere reactions between azido-pentacyanocobaltate(III) and iron(II) polypyridyl complexes in aqueous medium
(Springer Science+Business Media B.V., http://www.springer.com/chemistry/journal/11243, 2009)The kinetics of the reactions between azidopentacyanocobaltate(III), Co(CN)5N3 3-, and iron(II) polypyridyl complexes, Fe(LL)3 2? (LL = bipy, phen), have been studied in both neutral and acidic aqueous solutions at I ... -
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 ... -
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 ... -
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 ... -
The Southern African Regional Science Initiative (SAFARI 2000): wet season campaigns
(Wageningen Institute for Environment and Climate Research, http://library.wur.nl/, 2002)The Southern African Regional Science Initiative (SAFARI 2000) involved two wet season and one dry season field campaigns. This paper reports on the wet season campaigns. The first was conducted at five sites along the ... -
Covenant with death: the attitude of churches in Botswana towards the use of condoms by Christians, and its social implications
(Botswana Society, http://www.botsoc.org.bw, 2000)This paper examines the preventative role of condoms in the fight against HIV/ AIDS. It will be argued in this paper that because of the magnitude, severity, devastation and complexity of the HIV/AIDS pandemic there is ... -
Tylosema esculentum extractives and their bioactivity
(Elsevier Science Ltd, http://www.elsevier.com/locate/bmc, 2011)The investigation of Tylosema esculentum (Morama) husks, cotyledons, and tuber yielded griffonilide 2, compound 1, griffonin 3, gallic acid 4, protocatechuic acid 5, b-sitosterol 6, behenic acid 7, oleic acid 8, sucrose ... -
A bichalcone from the twigs of Rhus pyroides
(Elsevier Science Ltd, http://www.elsevier.com/locate/phytochem, 2000)The twigs of Rhus pyroides yielded a novel bichalcone 2',40,21-trihydroxy-4',41-dimethoxy-4-O-51-bichalcone. It was identified on the basis of spectroscopic data including 1D and 2D NMR spectroscopy. The name rhuschalcone-1 ... -
An efficient synthesis of flavans from salicylaldehyde and acetophenone derivatives
(Elsevier Science Ltd, http://www.elsevier.com/locate/tetlet, 2011)An efficient total synthesis of flavans from the reactions of salicylaldehyde and acetophenone derivatives is reported. The synthesis involves preparation of chalcones through an aldol reaction followed by reduction of ... -
An unexpected 1,2-hydride shift in phosphoric acid-promoted cyclodimerization of styrene oxides under solvent-free conditions. A synthetic route towards 2,4-disubstituted 1,3-dioxolanes
(Elsevier Science Ltd, http://www.elsevier.com/locate/tetlet, 2009)A 1,2-hydride shift in the phosphoric acid-promoted cyclodimerization of styrene oxide and its chloro derivatives under solvent-free conditions leading to 2,4-disubstituted 1,3-dioxolanes is described. Methoxy substituents ... -
Looking for progenitors: a molecular approach to finding the origins of an invasive weed
(Kluwer Academic Publishers, http://www.springerlink.com, 2002-11-28)One of the major problems in determining the origin of invasive species is that often their arrival is unnoticed. Only when population levels increase is their presence noticed but by this time determining the point of ... -
Woody vegetation resource changes around selected settlement along aridity gradient in the Kalahari, Botswana
(Elsevier Science Ltd, http://www.elsevier.com/locate/cag, 2002-07-22)This paper investigated changes in economically important woody vegetation resources around seven settlements located along an aridity gradient in the Kalahari. Available data at different rainfall levels were analysed ... -
The prevelance of, and factors associated with, overweight and obesity in Botswana
(Cambridge University Press; www.cambridge.org, 2011)The aim of this study was to estimate the prevalence of, and socio-demographic factors associated with, overweight and obesity in Botswana. A cross-sectional survey was conducted in 2007 using a multistage sampling method ... -
NSDI building blocks: regional GIS in the United States
(Urban and Regional Information Systems Association, http://www.urisa.org/, 2009)This paper presents an assessment of the regional capacity in implementing geographic information systems (GIS) and databases. We draw on a Web survey to determine the availability and assembly of spatial data at the ... -
Pollution implications of Save River water from weathering and dissolution of metal hosting minerals at Dorowa phosphate mine, Zimbabwe
(Elsevier Science Ltd, http://www.elsevier.com/locate/pce, 2010)The study set out to determine the weathering and dissolution of metal hosting minerals at Dorowa for purposes of deducing pollution potential to the nearby Save River. Phosphate rock is mined at Dorowa for the production ... -
Problems and prospects for the development of urban tourism in Gaborone and Maun, Botswana
(Taylor & Francis (Routledge), http://www.informaworld.com/smpp/title~content=t713413745, 2007-12)This paper draws on the tourism system framework to examine the problems and prospects of urban tourism in Gaborone and Maun, Botswana. These are young centres that have a growing number of tourist attractions, facilities ... -
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 ...