Articles by Author: R Karimi

Search results for R Karimi

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  1. Representation of slim algebraic regular cozero maps

    Representation of slim algebraic regular cozero maps

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    In this paper a new tool, the cozero maps, is introduced to study algebraic structures in pointfree topology, which generalizes cozero elements and the cozero part of a frame. The slim regular algebraic cozero maps are represented. We proved that...
  2. Effect of logging on the Abbott's Starling (<em>Pholia femoralis</em>) population in Kikuyu escarpment forest, Kenya

    Effect of logging on the Abbott's Starling (<em>Pholia femoralis</em>) population in Kikuyu escarpment forest, Kenya

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Human encroachment continues to degrade highland forests. Abbott's Starling (Pholia femoralis) is a little-known Eastern African endemic frugivore restricted to highland forest canopy at altitudes of 1 800–2 600m. It occurs patchily within its restricted range of about 5 100km2,...
  3. The effect of constructed-responses and multiple-choice tests on students’ course content mastery

    The effect of constructed-responses and multiple-choice tests on students’ course content mastery

    Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies
    In this article the effectiveness of open-ended tasks and multiple-choice item tests on students’ achievement in a linguistic course was investigated. To this end, a true-experimental research method with a randomised pre-test–post-test experimental group design was applied. The author had...
  4. Performance and participatory evaluation of green gram genotypes in the semi-arid environments of Eastern Kenya

    Performance and participatory evaluation of green gram genotypes in the semi-arid environments of Eastern Kenya

    Item type: Journal Article • Journal: East African Agricultural and Forestry Journal
    Green gram (Vigna radiata (L.) R Wilczek var. radiata) is an important pulse in the climatically marginal areas of Eastern Kenya. The pulse is cultivated primarily for food grain and income generation. Its productivity in Eastern Kenya has declined, because...