Articles by Author: Rolf Heinm Ller

Search results for Rolf Heinm Ller

We found 15 results for you
  1. Exploring the validity of scores from the Rosenberg Self-Esteem Scale (RSES) in Burundi: A multi-strategy approach

    Exploring the validity of scores from the Rosenberg Self-Esteem Scale (RSES) in Burundi: A multi-strategy approach

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    The present study aimed to validate the Rosenberg Self-Esteem Scale (RSES) in Burundi, through a multi-strategy approach used in cross-cultural studies. Respondents were 906 health workers (men = 56%; caregivers 60%). They responded to a bilingual version of RSES. We...
  2. Seasonal variation of grassland basal cover

    Seasonal variation of grassland basal cover

    Preliminary results of a long‐term study of seasonal variation in grassland basal cover are presented. Seasonal stability appears to have been taken for granted but has not yet been shown experimentally. The experimental area is situated in the National Botanic...
  3. Morphology and ultrastructure of glandular and nonglandular trichomes on the leaves of <em>Athrixia phylicoides</em> (Asteraceae)

    Morphology and ultrastructure of glandular and nonglandular trichomes on the leaves of <em>Athrixia phylicoides</em> (Asteraceae)

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Athrixia phylicoides is one of many plants from the Asteraceae family used as a traditional herbal medicine. Pharmacological evaluation of leaf extracts confirmed that the plant has anti-inflammatory, antihypertensive, narcotic and analgesic properties. The medicinal properties of plants are often...
  4. KWANTITATIEF EN/OF KWALITATIEF: DIE BEGRONDING VAN TAALADVIES?

    KWANTITATIEF EN/OF KWALITATIEF: DIE BEGRONDING VAN TAALADVIES?

    Item type: Journal Article • Journal: South African Journal of Linguistics
    Die gebrekkige tradisie van kwantitatiewe navorsing in 'n gebruikskundige omgewing lei dikwels daartoe dat algemene advies oor die gebruik van taalverskynsels, soos dié van die passiefkonstruksie byvoorbeeld, aan gebruikers gegee word.
  5. ON AN ELLIPTIC BOUNDARY VALUE PROBLEM ARISING IN MAGNETOHYDRODYNAMICS

    ON AN ELLIPTIC BOUNDARY VALUE PROBLEM ARISING IN MAGNETOHYDRODYNAMICS

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    Results are derived concerning the spectral properties of an elliptic boundary value problem arising in the mathematical theory of magnetohydrodynamics which are of basic importance for the further development of this theory.
  6. 'n Semantiese representasie (SR) van enkele Duitse plekname (PN) in sintaktiese verband

    'n Semantiese representasie (SR) van enkele Duitse plekname (PN) in sintaktiese verband

    Item type: Journal Article • Journal: South African Journal of Linguistics
    Plekname, dus ook Duitse plekname, kan as taaltekens onderskei word wat uit enige of verskillende sintaktiese kategoriee of rededele kan bestaan. Hulle vertoon onder andere sekere grammatiese betekenisse soos morfosintaktie-se relasies en het relevansie in 'n semanties-pragmatiese konteks waarvan die...
  7. Sexual selection and conservation: a Palearctic-African perspective

    Sexual selection and conservation: a Palearctic-African perspective

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Møller, A. Pape. 2000. Sexual selection and conservation: a Paleartic-African perspective. Ostrich 71 (1): 361
  8. On Representable Half-Exact Functors over <em>B</em>

    On Representable Half-Exact Functors over <em>B</em>

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    Half-exact homotopy functors defined on categories over a fixed base space B generalize cohomology functors with local coefficients. It is proved that such functors, if strongly homotopy invariant, are representable in the sense of EJI. Brown by fiber spaces E...
  9. CONVERGENCE OF THE HEAT KERNEL AND THE RESOLVENT KERNEL ON DEGENERATING HYPERBOLIC RIEMANN SURFACES OF FINITE VOLUME

    CONVERGENCE OF THE HEAT KERNEL AND THE RESOLVENT KERNEL ON DEGENERATING HYPERBOLIC RIEMANN SURFACES OF FINITE VOLUME

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    Degeneration of an hyperbolic surface of finite volume (compact or non-compact) is precisely defined. Briefly, such a surface is continuously deformed so that the lengths of one or more simple, closed geodesics (called pinching geodesics) approach zero. In the limit,...
  10. Self-adjoint fourth order differential operators with eigenvalue parameter dependent boundary conditions

    Self-adjoint fourth order differential operators with eigenvalue parameter dependent boundary conditions

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    We consider the eigenvalue problem y (4)(λ,x) − (gy′)′(λ,x) = λ 2 y(λ,x) with separated boundary conditions B j (λ)y = 0 for j = 1,…,4, where g ∈ C 1[0, a] is a real valued function, B...