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Now showing items 331-340 of 370
Some relations between admissible monomials for the polynomial algebra
(Hindawi Publishing Corporation, www.Hindawi.com, 2015)
Let P(𝑛) = F2[𝑥1, . . . , 𝑥𝑛] be the polynomial algebra in 𝑛 variables 𝑥𝑖, of degree one, over the field F2 of two elements. The mod-2 Steenrod algebra A acts on P(𝑛) according to well known rules. A major problem ...
Assessment of the concentration of heavy metals associated with landfill leachate in Gamodubu soils in the Kweneng District, Botswana
(International Scholars Journals, http://internationalscholarsjournals.org/journal/ajss/home, 2019-01)
Composting is a common method of household waste in developing countries such as Botswana. However,
compost can introduce heavy metals which are harmful to the environment. High concentrations of heavy
metals are toxic ...
Measurement of breakdown electric field strength for vegetation and hydrocarbon flames
(Scientific Research Publishing Inc., https://www.scirp.org/, 2018)
A significant number of fire-induced power disruptions are observed in several countries every year. The faults are normally phase-to-phase short circuiting or conductor-to-ground discharges at mid-span region of the ...
Characterization of soils in the Gamodubu landfill area in the Kweneng District, Botswana
(International Scholars Journals, http://internationalscholarsjournals.org/journal/ajss/home, 2019-01)
Understanding soil attributes guides arable farming initiatives in many countries, especially developing countries. In this study, soils of the Gamodubu area, in the Kweneng District, Botswana, were analysed to determine ...
Impact and control of desertification in the drylands: a review article
(International Society for Development and Sustainability (ISDS), Japan. https://isdsnet.com/ijds.html, 2018)
The inherent variation in the impacts of desertification and the criteria and methods used for its control significantly influence the success of its combat. This paper provides a critical review of the empirical studies ...
A unified approach to integration theory
(International Journal of Applied Physics and Mathematics, www.ijapm.org/, 2019-01)
We investigate the common features and the resemblance of the central parts of the different existing integration theories to obtain a more unified approach to the notion of integral. Our approach gives a presentation of ...
Geophysical and hydrogeological groundwater prospectivity mapping in the Kraaipan Granite-Greenstone Terrain, Southeast Botswana
(Scientific Research Publishing Inc., https://www.scirp.org/journal/jwarp/, 2017-10)
Application of regional geophysical methods for hydrogeological purposes has increased over the last two decades especially in arid and semi-arid areas. A project to map the Kraaipan granite-greenstone terrain in southeast ...
Effect of erythrinaline alkaloids from Erythrina lysistemon on human recombinant caspase-3
(Academic Journals, https://academicjournals.org/, 2018-04-22)
Prostate cancer is a leading killer disease among men all over the world. Inducing apoptosis (programmed cell death) is a strategic chemotherapeutic approach. Caspase-3 is a key effector of apoptosis, and its activation ...
Antibacterial activity of crude extracts and pure compounds isolated from Vernonia galamensis leaves
(Academic Journals, https://academicjournals.org/journal/AJPP, 2018-03-22)
The aim of this study was to test the antibacterial property of the extract of the leaves and isolated compounds of Vernonia galamensis that is traditionally claimed to have diverse medicinal use. The disk diffusion method ...
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
(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. ...