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Now showing items 91-100 of 132
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 ...
Analyzing the load balance of term-based partitioning
(The Science and Information Organization Inc., http://ijacsa.thesai.org/, 2011)
In parallel (IR) systems, where a large-scale collection
is indexed and searched, the query response time is limited by the
time of the slowest node in the system. Thus distributing the load equally across the nodes is ...
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 ...
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 ...
Antioxidant and antibacterial constituents from Morus nigra
(Academic Journals, http://www.academicjournals.org/ajpp, 2011-06)
The objective of this study was to isolate and characterize the constituents of the local Morus nigra L.
(Black mulberry), to compare its constituents with other studied Mulberries and to evaluate its antioxidative and ...
Global environmental change and food systems in Southern Africa: The dynamic challenges facing regional policy
(Academic Journals, http://www.academicjournals.org/JGRP, 2011-04)
There is a growing concern that Global environmental change (GEC) will exacerbate the stress on
Southern African food systems leading to increasing food insecurity, which is signified by rising levels
of chronic and ...
The Levi-Civitá equation, vector modules and spectral synthesis
(Banach Center Polish Academy of Sciences, 2013)
The purpose of this paper is to give a survey on some recent results concerning spectral analysis and spectral synthesis in the framework of vector modules and in close connection with the Levi-Civita functional equation. ...
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 ...
Biomass production and economic value of Phragmites australis Reedbeds in the Southern Okavango Delta, Botswana
(Global Science Books, http://www.globalsciencebooks.info/, 2011)
Most work globally on Phragmites spp. has been done in temperate northern hemisphere localities, where winter low temperatures and short day lengths cause a seasonal decrease in growth. In this study, we report above-ground ...
On size function topology and fixed point theorems
(International Scientific Publications and Consulting Services, http://www.ispacs.com/about.php, 2017-06)
In this paper, we introduce and study a metric-like (non-necessarily metric) topology that is weaker than the original topology of a given topological space. The results are used to provide more useful and more general ...