Articles by Author: Richard Von Rahden

Search results for Richard Von Rahden

We found 98 results for you
  1. Concentrating on the right measures

    Concentrating on the right measures

    Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia
    The continued use of “percent” in the labelling and description of many drugs used in the field of anaesthesia is an ongoing source of errors. As part of the modern drive towards safety in medicine it is proposed that the...
  2. Heart rate variability predicts 30-day all-cause mortality in intensive care units

    Heart rate variability predicts 30-day all-cause mortality in intensive care units

    Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia
    Background: Autonomic nervous function, as quantified by heart rate variability (HRV), has shown promise in predicting clinically important outcomes in the critical care setting; however, there is debate concerning its utility. HRV analysis was assessed as a practical tool for...
  3. Outcomes 30 days after ICU admission: the 30DOS study

    Outcomes 30 days after ICU admission: the 30DOS study

    Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia
    Background: The spectrum of illness and long-term outcome of critically ill patients admitted to intensive care units (ICUs) in South Africa remains largely unknown.
  4. Multiple Resource Utilisation Developments in Mondi Forests

    Item type: Journal Article • Journal: South African Forestry Journal
    Defined as the use of available resources other than the planted trees on Mondi's landholdings, the development of various MRU projects is described from 1975 onwards. Projects are differentiated into those that are directly dependant on the presence of planted...
  5. Complete compositions of a natural number

    Complete compositions of a natural number

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    An alternative proof is given for the recently established fact that approximately one half of all compositions of a natural number are complete.
  6. ABOUT THE RADIUS OF CONVERGENCE OF THE ZETA FUNCTION OF AN ADDITIVE ARITHMETICAL SEMIGROUP

    ABOUT THE RADIUS OF CONVERGENCE OF THE ZETA FUNCTION OF AN ADDITIVE ARITHMETICAL SEMIGROUP

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    Let (G, ∂) be an additive arithmetical semigroup in John Knopfmacher's sense with f(n), g(n) denoting the number of all elements, prime elements of G with degree ∂ = n.
  7. ABOUT THE ABSCISSA OF CONVERGENCE OF THE ZETA FUNCTION OF A MULTIPLICATIVE ARITHMETICAL SEMIGROUP

    ABOUT THE ABSCISSA OF CONVERGENCE OF THE ZETA FUNCTION OF A MULTIPLICATIVE ARITHMETICAL SEMIGROUP

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    Let (G, || ″ ||) be a multiplicative arithmetical semigroup in John Knopf-macher's sense with F(x), G(x) denoting the number of all elements, prime elements of G with norm || ≤ x.