University of Botswana Research, Innovation and Scholarship Archive: Recent submissions
Now showing items 1421-1440 of 2188
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Hepatoprotective potentials of water extract of Bauhinia purpurea bark against alcohol induced toxicity
(Academic Journals, http://www.academicjournals.org/SRE, 2011)Bark of Bauhinia purpurea tree was collected and both the water and methanol extracts were prepared. Both extracts were tested for free radical scavenging activities and phenol content. Water extract was then tested for ... -
Effect of Momordica charantia on lipid profile and oral glucose tolerance in diabetic rats
(John Wiley & Sons, Ltd, http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1099-1573, 2004)In this study, the methanol extract of Momordica charantia fruit extract was administered to diabetic rats to assess the long term effect of the extract on the lipid profile and the oral glucose tolerance test. Treatment ... -
Analysis of persistence soil nutrient statusin abandoned cattle kraals in a semi arid area of Botswana
(Academic Journals, http://www.academicjournals.org, 2011-12-04)The aim of this study was to analyze the depletion of soil nutrients with time on abandoned kraals in a peri-urban area of Botswana. Active kraals are enriched with nutrients through the accumulation of animal droppings ... -
Temperature-Emissivity separation with ASTER and LANDSAT 7 validation on the fringe of the Okavango Delta, Botswana
(SPIE, http://link.aip.org, 2004)Land surface temperatures are important in global change studies, in estimating radiation budget, heat balance studies and as control for climate models. Several algorithms for estimating land surface temperature and ... -
The reading behavior of junior secondary students during school holidays in Botswana
(International Reading Association, www.reading.org/, 2011)Reports of the poor reading culture of Batswana appear periodically in the popular media, especially the newspapers (see Baputaki, 2006; Hosia, 2007; Seboni & Swartland, 2009). These impressionistic reports speak of an ... -
Reader-response approach: an intervention in composition writing at junior secondary schools in Botswana
(IJSRE, http://www.ijsre.com, 2011-03)Recently, the reading-writing connection has come into focus as an area that can be exploited to address English as a second language (ESL) writing skills development. This is because various studies have identified ESL ... -
Property issues in the dissolution of marriages: experiences of some divorced mothers in Botswana
(Botswana Society, http://www.botsoc.org.bw, 2003)Over the last two decades rates of divorce have increased in Botswana (Murray, 1981; Ahmed and Letamo, 1989; Bhebhe and Mosha, 1996). Despite this trend, little is known about women’s experiences of marital property division ... -
Residual effects of prolonged UV-B exposure on photosynthetic gene expression
(Academic Journals, www.academicjournals.org, 2010-08-18)Residual long-term effects of increased UV-B radiation were investigated in an indigenous plant species, Dimorphotheca sinuata, by analysing photosynthetic gene expression. Reductions were observed in the amount of the ... -
Determination of allele frequencies in nine short tandem repeat loci of five human sub-populations in Botswana
(Academic Journals, www.academicjournals.org, 2008-04-17)Allele frequencies for nine short tandem repeat (STR) loci from the AmpFlSTR® Profiler Plus PCR Amplification Kit were determined in five subpopulations across Botswana and tested for suitability for use in individual ... -
New developments in the national examination system in Botswana
(National Council on Measurement in Education. http://www3.interscience.wiley.com, 1999-12)The study briefly looks at the new developments in the national examination system in Botswana. With this new system, the government opted for a criterion-referenced testing (CRT) model for primary and junior secondary ... -
Botswana's crawling-peg exchange rate system: trends and variations in the pula exchange rate
(Botswana Society, http://www.botsoc.org.bw, 2009)This paper aims to show trends and variations in the Botswana Pula exchange rate before and after the introduction of the crawling-peg exchange rate system. The survey indicates that previous devaluations not accompanied ... -
Comparative assessment of water infiltration of soils under different tillage systems in eastern Botswana
(Elsevier Science Ltd, http://www.elsevier.com/locate/pce, 2009)Water infiltration is an important component of water balance for improving crop production potential in dryland soil tillage systems in Botswana, particularly in the eastern region. Hardsetting soils common in arable ... -
Use of neutron probe and tensiometry techniques in determining water characteristics of the two soil types
(University of Botswana, Faculty of engineering and technology, http://www.ajol.info/index.php/bjt/index, 2008)Characterisation of soil water, in particular water flow dynamics is fundamental in assessing the environmental implications to soil management. Soil water characterisation was assessed by measuring soil water content and ... -
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 ... -
Vector measures of bounded semivariation and associated convolution operators
(Glasgow Mathematical Journal Trust, http://journals.cambridge.org/action/displayJournal?jid=GMJ, 2011)Let G be a compact metrizable abelian group, and let X be a Banach space. We characterize convolution operators associated with a regular Borel X-valued measure of bounded semivariation that are compact (resp; weakly ... -
Chicken manure-enhanced soil fertility and productivity: effects of application rates
(Academic Journals, http://www.academicjournals.org/JSSEM, 2010-05)The utilization of chicken manure as an organic fertilizer is essential in improving soil productivity and crop production. We carried out the study to assess the effects of chicken manure on soil chemical properties and ... -
Comparative effects of secondary treated waste water irrigation on soil quality parameters under different crop types
(Global Science Books, http://www.globalsciencebooks.info/Journals/AJPSB.html, 2011)This study compares soil quality parameters, and salinity and heavy metal levels in soils cultivated with different crops under secondary treated wastewater irrigation in the Glen Valley, near Gaborone City, Botswana. The ... -
Spatial and temporal land cover changes in the Simen Mountains National park, a world heritage site in Northwestern Ethiopia
(MDPI Publishing; www.mdpi.com, 2011-01-05)The trend of land cover (LC) and land cover change (LCC), both in time and space, was investigated at the Simen Mountains National Park (SMNP), a World Heritage Site located in northern Ethiopia, between 1984 and 2003 using ... -
Information seeking behavior of the off-campus students at the University of Botswana: a case of two satellite centers
(Routledge (Taylor and francis)/www.routledge.com, 2010)The focus of this study is on the information-seeking behavior of the off-campus students in 2 of the 7 satellite centers of the Centre for Continuing Education, the outreach arm of the University of Botswana. Although ... -
The Khoisan in Botswana - Can multicultural discourses redeem them?
(Routledge (Taylor and francis) www.routledge.com, 2010)The Khoisan people are one of the indigenous peoples of Southern Africa. Botswana has the greatest diversity of these autochthonous communities. As ethnic minorities, they are characterized in the main by small ...