Articles by Author: N Sims

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  1. ON NON-UNIFORM CONDITIONS GIVING WEAK NORMAL STRUCTURE

    ON NON-UNIFORM CONDITIONS GIVING WEAK NORMAL STRUCTURE

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    Several non-uniform conditions sufficient for weak normal structure have recently been introduced. We show that some of these are in fact equivalent and also utilize them in applications towards a 3-space property for weak normal structure, thereby improving on earlier...
  2. A note on the length/mass relationship and mass conversion factors for Agulhas sole <em>Austroglossus pectoralis</em>

    A note on the length/mass relationship and mass conversion factors for Agulhas sole <em>Austroglossus pectoralis</em>

    Item type: Journal Article • Journal: South African Journal of Marine Science
    The relationship between mass and length and the landed mass/whole mass conversion factors for Agulhas sole Austroglossus pectoralis were investigated and compared to the results of an earlier study. Earlier length/mass relationships overestimate the mass of small soles but underestimate...
  3. Seasonal and interannual variability in wind field and commercial catch rates of <em>Austroglossus pectoralis</em> (Soleidae)

    Seasonal and interannual variability in wind field and commercial catch rates of <em>Austroglossus pectoralis</em> (Soleidae)

    Item type: Journal Article • Journal: South African Journal of Marine Science
    The impact of deviations in the direction and strength of the wind field on the spatial, seasonal and interannual variability in catch rates of Agulhas sole Austroglossus pectoralis was investigated. Temporal variability in the wind cycle on the Agulhas Bank...
  4. From hostility to hope: Beauvoir’s joyful turn to Hegel in <em>The Ethics of Ambiguity</em>

    From hostility to hope: Beauvoir’s joyful turn to Hegel in <em>The Ethics of Ambiguity</em>

    Item type: Journal Article • Journal: South African Journal of Philosophy
    Kojève’s lectures on Phenomenology of Spirit generated two ideas–otherness is something threatening that must be overcome and one’s relationships with others are inexorably violent–that fundamentally shaped the way many exponents of early French phenomenology regarded intersubjectivity. This essay shows how...
  5. A Social Cost-benefit Analysis of a Small-scale Clam Fishery in the Eastern Cape, South Africa

    A Social Cost-benefit Analysis of a Small-scale Clam Fishery in the Eastern Cape, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    When a proposal was advanced in 1991 to harvest the wedge clam Donax serra in the Eastern Cape, South Africa, for commercial gain, it elicited a huge public outcry. In order to shed light on the issue, a social cost-benefit...
  6. From beans to breams: how participatory workshops can contribute to marine conservation planning

    From beans to breams: how participatory workshops can contribute to marine conservation planning

    Item type: Journal Article • Journal: African Journal of Marine Science
    Systematic conservation planning is increasingly being used in the marine environment, but the relative paucity of data on marine patterns and process still presents a problem, particularly in developing countries. For example, along the south-eastern component of the Agulhas marine...
  7. Song mimicry, song dialects, and behavioural context of songs in brood-parasitic Straw-tailed Whydahs, <em>Vidua fischeri

    Song mimicry, song dialects, and behavioural context of songs in brood-parasitic Straw-tailed Whydahs, <em>Vidua fischeri

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Straw-tailed Whydahs, Vidua fischeri, mimic the songs and calls of their host species, the Purple Grenadier, Granatina ianthinogaster, and they also have songs that do not mimic the hosts. Neighbouring male whydahs match song themes with each other, while males...
  8. Predicting <em>Mycosphaerella</em> leaf disease severity in a <em>Eucalyptus globulus</em> plantation using digital multi-spectral imagery

    Item type: Journal Article • Journal: Southern Hemisphere Forestry Journal
    Digital remote sensing is rapidly developing into an operational tool for forest health assessment at a range of scales. A key aspect of this development is the derivation of models relating spectral data contained in the images to the extent...