Now showing items 21-40 of 1613

  • Ecotourism in Botswana: 30 years later 

    Mbaiwa, Joseph E. (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 

    Tubatsi, G.; Bonyongo, M.C.; Gondwe, M. (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 

    Tsheboeng, Gaolathe; Bonyongo, Mphaphi; Murray-Hudson, Mike (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) 

    Abubakar, Mustapha N.; Majinda, Runner R.T. (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 

    Bojase, Gomotsang; Majinda, Runner R.T.; Gashe, Berhanu A.; Wanjala, Cornelius C.W. (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 

    Majinda, Runner R.T.; Motswaledi, Modisa; Waigh, Roger D.; Waterman, Peter G. (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 

    Majinda, Runner R.T.; Waigh, Roger D.; Waterman, Peter G. (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 

    Wanjala, Cornelius C.W.; Juma, Benard F.; Bojase, Gomotsang; Gashe, Berhanu A.; Majinda, Runner R.T. (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 

    Kwape, Tebogo E.; Majinda, Runner R.T.; Chaturvedi, Padmaja (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 

    Majinda, Runner R.T.; Motswaledi, Modisa S. (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 

    Keroletswe, Ngonye; Mazimba, Ofentse; Majinda, Runner R.T.; Masesane, Ishmael (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 

    Tsima, Billy M.; Mbuka, Deogratias O.; Mungisi, Maxwell; Lephirimile, Eva (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 

    Mwita, Julius Chacha; Magafu, Mgaywa Gilbert Mjungu Damas; Omech, Bernard; Tsima, Billy; Dewhurst, Matthew J.; Goepamang, Monkgogi; Mashalla, Yohana (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 

    Melese, Tadele; Habte, Dereje; Tsima, Billy M.; Mogobe, Keitshokile Dintle; Nassali, Mercy N. (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 

    Cox, Megan; Rajeswaran, Lakshmi; Moeng, Stoffel; Tsima, Billy M. (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? 

    Tsima, Billy; Ratcliffe, Sarah Jane; Schnoll, Robert; Frank, Ian; Kolson, Dennis Larry; Gross, Robert (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 

    Tshipa, Moletlanyi (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 ...
  • Communication: Remarkable electrophilicity of the oxalic acid monomer: An anion photoelectron spectroscopy and theoretical study 

    Buonaugurio, Angela; Graham, Jacob; Buytendyk, Allyson; Bowen, Kit H.; Ryder, Matthew R.; Keolopile, Zibo G.; Haranczyk, Maciej; Gutowski, Maciej (AIP Publishing LLC., https://aip.scitation.org/journal/jcp, 2014-06-14)
    Our experimental and computational results demonstrate an unusual electrophilicity of oxalic acid, the simplest dicarboxylic acid. The monomer is characterized by an adiabatic electron affinity and electron vertical ...
  • Use of oxytocin during caesarean section at Princess Marina Hospital, Botswana: an audit of clinical practice 

    Tsima, Billy M.; Madzimbamuto, Farai D.; Mash, Bob (AOSIS, www.aosis.co.za/publishing, 2013-02-26)
    Background: Oxytocin is widely used for the prevention of postpartum haemorrhage. In the setting of Caesarean section (CS), the dosage and mode of administrating oxytocin differs according to different guidelines. Inappropriate ...
  • The P wavespeed structure below and around the Kaapvaal craton to depths of 800 km, from traveltimes and waveforms of local and regional earthquakes and mining-induced tremors 

    Simon, R.E.; Wright, C.; Kgaswane, E.M.; Kwadiba, M.T.O. (Oxford University Press, https://academic.oup.com/gji, 2002-10-01)
    An average P-wavespeed model from the surface to depths of 800 km was derived for southern Africa using traveltimes and waveforms from earthquakes recorded at stations of the Kaapvaal and South African National networks. ...