Articles by Author: Williams Kupolati

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  1. Appraisal of access to safe drinking water in southwest Nigeria

    Appraisal of access to safe drinking water in southwest Nigeria

    The importance of developing effective water supply services is universally recognised as a basis for improving the overall health of the population. This study ascertained the quality of water supplied by a water treatment scheme in southwest Nigeria. One hundred...
  2. Stabilization of lateritic soil with pulverized palm kernel shell (PPKS) for road construction

    Stabilization of lateritic soil with pulverized palm kernel shell (PPKS) for road construction

    This paper discusses the stabilization of lateritic soil with pulverized palm kernel shell (PPKS), an agricultural waste, for road construction. Samples of lateritic soil with the addition of 5.00–12.50% PPKS at an increment of 2.50% were prepared for index and...
  3. Utilization of pulverized cow bone (PCB) for stabilizing lateritic soil for road work

    Utilization of pulverized cow bone (PCB) for stabilizing lateritic soil for road work

    This research explored the possibility of improving the engineering properties of lateritic soil with pulverized cow bone (PCB), a processed animal waste obtained from slaughtered cows, for road construction. The effects of PCB on the lateritic soil samples were evaluated...
  4. African penguins as predators and prey – coping (or not) with change

    African penguins as predators and prey – coping (or not) with change

    Item type: Journal Article • Journal: South African Journal of Marine Science
    African penguins Spheniscus demersus live in the Benguela and western Agulhas ecosystems off southern Africa. Their numbers decreased throughout the 20th century from at least 1.5 million to about 0.18 million adults, although different regional trends were apparent. They feed...
  5. A note on mortality of seabirds off western southern Africa, October 1985–February 1986

    A note on mortality of seabirds off western southern Africa, October 1985–February 1986

    Item type: Journal Article • Journal: South African Journal of Marine Science
    During the austral spring and summer of 1985/86 Cape cormorants Phalacrocorax capensis deserted nests at each of the six major breeding colonies off South Africa and at the two most populous island colonies off South West Africa. Off South Africa...