Browsing Faculty of Science by Title

Now showing items 2081-2085 of 2085

    • Y-Chromosome Variation in Hominids: Intraspecific Variation Is Limited to the Polygamous Chimpanzee 

      Greve, Gabriele; Alechine, Evguenia; Pasantes, Juan J.; Hodler, Christine; Rietschel, Wolfram; Robinson, Terence J.; Schempp, Werner (PLoSONE, 2011-12-27)
      Background: We have previously demonstrated that the Y-specific ampliconic fertility genes DAZ (deleted in azoospermia) and CDY (chromodomain protein Y) varied with respect to copy number and position among chimpanzees ...

    • Yeast infection in a beached southern right whale (Eubalaena australis) neonate 

      Mouton, Marnel; Reeb, Desray; Botha, Alfred; Best, Peter (Wildlife Disease Association, 2009)
      A female southern right whale (Eubalaena australis) neonate was found stranded on the Western Cape coast of southern Africa. Skin samples were taken the same day from three different locations on the animal’s body and ...

    • Zeta diversity as a concept and metric that unifies incidence-based biodiversity patterns 

      Hui, Cang; McGeoch, Melodie A. (The University of Chicago Press, 2014-11)
      Patterns in species incidence and compositional turnover are central to understanding what drives biodiversity. Here we propose zeta (ζ) diversity, the number of species shared by multiple assemblages, as a concept and ...

    • α-Diimine complexes of transition metals for the polymerisation of lower α-olefins 

      Fullaway, Phillip V. (Stellenbosch : University of Stellenbosch, 2005-12)
      In this study several potential polymerisation catalysts were synthesised. This was accomplished by coordinating α-diimine ligands such as N,N'-diferrocenyldiazabutadiene (DFDAB), N,N'-dimesityldiazabutadiene (DMDAB) as ...

    • The α-L-arabinofuranosidase of Aureobasidium pullulans 

      Matthew, Mark Kevin Alexander (Stellenbosch : Stellenbosch University, 2006-04)
      ENGLISH ABSTRACT: The euascomycetous fungus Aureobasidium pullulans produces xylanolytic accessory enzymes, including an α-L-arabinofuranosidase. The deduced amino acid sequence of the abfA gene encoding α-L-arabinofuranosidase ...