Articles by Author: Johannes M Ller

Search results for Johannes M Ller

We found 54 results for you
  1. Comparative skull osteology and preliminary systematic revision of the African lizard genus <em>Heliobolus</em> (Squamata: Lacertidae)

    Comparative skull osteology and preliminary systematic revision of the African lizard genus <em>Heliobolus</em> (Squamata: Lacertidae)

    Item type: Journal Article • Journal: African Journal of Herpetology
    The anatomy of African lacertid lizards (Lacertidae: Eremiadini) is poorly known, which has hindered a better understanding of their evolutionary relationships. This applies especially to the East African clade, which includes the genera Nucras, Latastia, Philochortus, Pseuderemias and Heliobolus. 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. Measurement of exchangeable aluminium in soils and clay minerals by isotopic exchange

    Measurement of exchangeable aluminium in soils and clay minerals by isotopic exchange

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Isotopically exchangeable Al was determined in soils and clay minerals by equilibration with 28Al. Best results were obtained with a weak extractant and an equilibration time of eight min. The calculated amount of isotopically exchangeable Al was independent of the...
  4. 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...
  5. 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.
  6. 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.
  7. Symbolism in CLS Thobega's poetry

    Symbolism in CLS Thobega's poetry

    Item type: Journal Article • Journal: South African Journal of African Languages
    This article discusses how CLS Thobega, one of the most prolific writers in Setswana, has, through his poetry, embedded different aspects which have been emphasized through the use of symbolism. It can be demonstrated that through his use of symbolism,...
  8. Tracing a sound knowledge base from indigenous knowledge: The integration of indigenous and Western medical systems

    Tracing a sound knowledge base from indigenous knowledge: The integration of indigenous and Western medical systems

    Item type: Journal Article • Journal: South African Journal of African Languages
    This article poses the following challenge: to revive, reconstruct, restore and reclaim the indigenous knowledge which older generations possessed with regard to medical cures and practices, not as an end in itself but in such a way that it would...
  9. Serote's <em>Come and hope with me</em> as ‘Testimony’

    Serote's <em>Come and hope with me</em> as ‘Testimony’

    Item type: Journal Article • Journal: South African Journal of African Languages
    This article explores Serote's poem Come and hope with me (1994) as a form of transformation. This long poem written during the nineties is characterized by a quality of reassessment of re-writing history. South African writers display a shift in...
  10. '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...