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The term, “heavy metals” (HMs) refers to a group of metals with atomic density greater than 4g/cm3. HM contamination is a major environmental problem worldwide today, especially in growing cities of developing countries mainly due to pollution. High levels of HMs can cause health problems in an...

The Mouse and keyboard is the major means of passing information from user to computer. Direct manipulation of objects via the mouse was a breakthrough in the design of a more natural and intuitive user interfaces for computers. However, in real life we have a rich set of communication methods at...

The principal areas and causes of environmental degradation include land degradation through erosion, land, air and water pollution to mention only but a few. Many of these environmental issues emanate from mining activities in one way or the other. Although these environmental concerns are...

This study focuses on the spatial and temporal variability of various carbon fractions and fluxes in relation to major biogeochemical parameters in the Zambezi River in Zambia and its major tributary, the Kafue River. Concentrations and composition of stable isotopes of dissolved organic carbon,...

The purpose of this study was to investigate the challenges of teaching and learning mathematics at the Copperbelt University (CBU), the second largest public university in Zambia. The challenges of teaching and learning mathematics are myriad. The framework addressing the challenges could have...

Much of southern Africa is semiarid and heavily dependent on groundwater resources. However, access to safe and clean water is an important feature of the natural environment, a human right and a basic requirement for economic development. Like in other parts of the Kalahari Basin, parts of...

This report is based on a study that sought to evaluate the effectiveness of the communication strategies used by Lusaka Water and Sewerage Company for community participation in the Maiteneke sewer network project in Matero Township. The case has been analyzed with a bias to the nature and...

Many developing countries including Zambia use Water, Sanitation and Hygiene Education (WASHE) programme as a strategy for reducing incidences of diarrhoea and most often, they do this without appropriate review of the programme effectiveness. WASHE programme was initiated in Monze in 1994,...

Kanyama site and service is recognized as a planned settlement by the local authorities. As such it is supposed to have urban social amenities and utilities. However, floods occur nearly every year in this settlement. Furthermore, households throw garbage wherever possible. Hence it is common to...

Uninterruptible Power Supplies (UPSs) are widely used for power conditioning applications, whereby the load is to be supplied with current and voltage waveforms containing minimal disturbance. A UPS also provides emergency power to critical loads in case of utility mains failure, and as such...