Articles by Author: Rudi Bower

Search results for Rudi Bower

We found 10 results for you
  1. Between Scylla and Charybdis:<sup>1</sup> a South African perspective on guitar building

    Between Scylla and Charybdis:<sup>1</sup> a South African perspective on guitar building

    Item type: Journal Article • Journal: Journal of the Musical Arts in Africa
    The modern classical guitar is an instrument that has seen a great deal of change and experimentation in recent years with regards to its construction and concomitant sound production. Guitar builders are faced with the significant challenge of having to...
  2. The projecting of musical and extra-musical elements in constructing choral identity with specific reference to three South African regional children’s choirs

    The projecting of musical and extra-musical elements in constructing choral identity with specific reference to three South African regional children’s choirs

    Item type: Journal Article • Journal: Journal of the Musical Arts in Africa
    This article explores how three regional children’s choirs and their practitioners, from different provinces of South Africa, project a distinctly South African choral identity that they themselves construct by fabricating a mental representation of themselves, through the identification, organisation and...
  3. Influence of abscisic acid on polyphenol oxidase browning potential in avocado

    Influence of abscisic acid on polyphenol oxidase browning potential in avocado

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Various levels of abscisic acid (ABA) were infused into unripened ‘Fuerte’ avocado fruit. After ripening, polyphenol oxidase (PPO) activity was measured, and abscisic acid (ABA) levels monitored. The study showed that an increase in applied ABA increased PPO levels, particularly...
  4. Effect of pre- and post-harvest water stress on the potential for fruit quality defects in avocado (<em>Persea americana</em> Mill.)

    Effect of pre- and post-harvest water stress on the potential for fruit quality defects in avocado (<em>Persea americana</em> Mill.)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Physiological and pathological disorders of avocado fruit are a limitation to export sales. The influence of pre-harvest water stress on post-harvest quality was studied using a long-term irrigation trial, i.e., re-wetting in the root zone when soil water tensions reached...
  5. Effect of production site, storage duration, and hot water and molybdenum dips on bioactive compounds with antioxidant properties in lemon flavedo during cold storage

    Effect of production site, storage duration, and hot water and molybdenum dips on bioactive compounds with antioxidant properties in lemon flavedo during cold storage

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Certain bioactive compounds, such as vitamin E (α-tocopherol), vitamin C (ascorbic acid), β-carotene, polyphenols (e.g. flavonoids and flavonones, viz. hesperidin and naringin) have antioxidant properties and their presence in the citrus flavedo plays a significant role in mitigating oxidative stress,...
  6. Applications of the growth characteristics induced by the spectral distance

    Applications of the growth characteristics induced by the spectral distance

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    Let A be a complex unital Banach algebra. Using a connection between the spectral distance and the growth characteristics of a certain entire map into A, we derive a generalization of Gelfand’s famous power boundedness theorem. Elaborating on these ideas,...
  7. Possible rehabilitation methods of <em>Galenia africana</em>-dominated old lands in the Cederberg Mountains, South Africa

    Possible rehabilitation methods of <em>Galenia africana</em>-dominated old lands in the Cederberg Mountains, South Africa

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Several methods to rehabilitate old cropping lands in the Cederberg Mountains were tested to determine what type of soil disturbance, if any, and which of five indigenous perennial plant species are the most successful and economically feasible. Old lands are...