University of Botswana Research, Innovation and Scholarship Archive: Recent submissions
Now showing items 581-600 of 2176
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Effects of divergent migratory strategies on access to resources for Cape buffalo (Syncerus caffer caffer)
(Oxford University Press; https://academic.oup.com, 2016-12-05)Populations of large herbivores frequently display divergent migratory strategies, a likely consequence of the trade-off between the costs and benefits of migration. Globally, physical and environmental barriers disrupt ... -
Water use practices, water quality, and households' diarrheal encounters in communities along the Boro-Thamalakane-Boteti river system, Northern Botswana
(BioMed Central; https://jhpn.biomedcentral.com, 2015-11-18)Abstract Background: Some rural African communities residing along rivers use the untreated river water for domestic purposes, making them vulnerable to waterborne diseases such as diarrhea. Methods: We determined water ... -
The role of vegetation in the Okavango Delta silica sink
(Springer Link; https://link.springer.com, 2014-12-16)We assessed the role of vegetation and hydrology in the Si cycle in the Okavango Delta. Our results show a large storage of biogenic Si (BSi) in vegetation and the sediments. The biological storage is among the highest ... -
Ecotourism in Botswana: 30 years later
(Tailor and Francis Online; https://www.tandfonline.com, 2015-08-10)Thirty years ago, conservationists, host communities, academics, and tourism practitioners perceived ecotourism as a panacea to conservation and poverty problems in tourism destination areas, especially in developing ... -
Water quality dynamics in the Boro-Thamalakane-Boteti river system, northern Botswana
(Tailor and Francis Online; https://www.tandfonline.com, 2014-11-11)The quality of water in aquatic systems is subject to temporal and spatial variations due to varying effects of natural and anthropogenic factors. This study assessed the dynamics of water ... -
Flood variation and soil nutrient content in floodplain vegetation communities in the Okavango Delta
(South African Journal of Science; http://www.scielo.org.za, 2014-02)We investigated the influence of hydroperiod variation on soil nutrient content in the Okavango Delta seasonal floodplains. Soil samples were collected from eight zones of homogenous vegetation cover after low and high ... -
GC-MS analysis and preliminary antimicrobial activity of albizia adianthifolia (Schumach) and pterocarpus angolensis (DC)
(MDPI, https://www.mdpi.com/, 2016-01-29)The non-polar components of two leguminoceae species Albizia adianthifolia (Schumach), and Pterocarpus angolensis (DC) were investigated. GC-MS analysis of the crude n-hexane and chloroform extracts together with several ... -
Antimicrobial Flavonoids from Bolusanthus speciosus
(Georg Thieme Verlag, https://www.thieme.com/, 2002)A new isoflavanone namely 3,5,7,2′,4′-pentahydroxy-8,3′-di(γ,γ-dimethylallyl)isoflavanone (bolusanthin II) and four new pterocarpans identified as 3-hydroxy-6′,6′-dimethylpyrano[2′,3′:1,2] [6aR,11aR]-8,9-methylenedioxypterocarpan ... -
Phenolic and antibacterial constituents of Vahlia capensis
(Georg Thieme Verlag, https://www.thieme.com/books-main/biochemistry/product/3494-planta-medica, 1997)The n-butanol fraction of Vahlia capensis yielded kaempferol, quercetin, afzelin, astragalin, quercitrin, iso-quercitrin, rutin, gallic acid, chiro-inositol, dulcitol, and a novel biflavonoid, VC-15B (vahlia biflavone). ... -
Bufadienolides and other constituents of Urginea sanguinea
(Georg Thieme Verlag, https://www.thieme.com/books, 1997)Fresh bulbs of Urginea sanguinea yielded stigmasterol, phloroglucinol, phloroglucinol 1-β-D-glucopyranoside (phlorin), scillaren A, a novel compound 5α-4,5-dihydroscillaren A (1), salicylic acid, and 3-hydroxy-4-methylbenzoic ... -
Erythrinaline Alkaloids and Antimicrobial Flavonoids from Erythrina latissima
(Georg Thieme Verlag, https://www.thieme.com/books-main/biochemistry/product/3494-planta-medica, 2002)The seed pods of Erythrina latissima yielded erysotrine, erysodine, syringaresinol, vanillic acid, a new erythrina alkaloid, (+)-10,11-dioxoerysotrine, which was lethal to brine shrimp and 2-(5′-hydroxy-3′-methoxy ... -
Antioxidant and antidiabetic potential of Myrothamnus flabellifolius found in Botswana
(Cogent OA, https://www.cogentoa.com/journal/biology, 2016-12-29)The total phenol content, antioxidant and antidiabetic activity of Myrothamnus flabellifolius (MF) were investigated. The study revealed 70% ethanol/water (EW70), 70% methanol/water (MW70) and methanol (Me) extracts to ... -
Antibiotic activity of selected Botswana Medicinal Plants
(The Botswana Society, http://journals.ub.bw/index.php/bnr/index, 1998)A number of plant extracts from selected Botswana Medicinal Plants were tested against a battery of organisms for antibiotic activity. The antibiotic profile for most of these extracts seems to support their traditional ... -
Fatty acid composition and antimicrobial activity of Baphia massaiensis seed oil
(SCIENCEDOMAIN International, http://www.journaljocamr.com/index.php/JOCAMR/index, 2017-04-03)Aims: The seed oil composition of Baphia massaiensis seeds was determined using 1H NMR and GC-MS techniques. The seed oil was also screened for antimicrobial activity. Study Design: The study was designed to determine ... -
Use of abbreviations and acronyms among healthcare workers in a resource limited setting
(Insight Medical Publishing, http://www.imedpub.com/, 2017-05-10)Context: Abbreviations and acronyms (A&A) are commonly used in both general and clinical settings to simplify and facilitate communication as well as means of saving time, space and effort. However, the use of abbreviations ... -
Undiagnosed and diagnosed diabetes mellitus among hospitalised acute heart failure patients in Botswana
(Sage publications, www.sage.com/, 2017-09-21)Objective: The objective of this study was to determine the burden of diagnosed and undiagnosed type 2 diabetes mellitus among patients hospitalised with acute heart failure in Botswana. Methods: The study enrolled 193 ... -
Management of post abortion complications in Botswana-the need for a standardized approach
(Public Library of Science,www.plos.org/, 2018-02-16)Background Post abortion complications are the third leading cause of maternal death after hemorrhage and hypertension in Botswana where abortion is not legalized. This study aimed at assessing the management of post ... -
Assessment of nurses’ cardiopulmonary resuscitation knowledge and skills within three district hospitals in Botswana
(AOSIS, www.aosis.co.za/publishing, 2018-04-12)Background: Nurses are usually the first to identify the need for and initiate cardiopulmonary resuscitation (CPR) on patients with cardiopulmonary arrest in the hospital setting. Cardiopulmonary resuscitation has been ... -
Is tobacco use associated with neurocognitive dysfunction in individuals with HIV?
(Sage publications, www.sage.com/, 2018)Introduction: The prevalence of HIV-associated neurocognitive disorders continues to rise despite the widespread use of antiretroviral therapy. We aimed to define the risk of neurocognitive dysfunction among smokers relative ... -
Electron states in a sinusoidally deformed cylindrical quantum wire
(Springer Nature Switzerland AG. Part of Springer Nature, https://link.springer.com/journal/40094, 2017)Electron states in a sinusoidally deformed cylindrical nanowire are probed within the effective mass approximation. The nanowire is immersed in a homogeneous magnetic field applied parallel to the axis of the wire. The ...