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Browsing Natural & Agricultural Sciences by Title

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  • (115–116) Proposals to eliminate the Latin requirement for the valid publication of plant names
    Figueiredo, Estrela; Moore, Gerry; Smith, G.F. (Gideon Francois), 1959- (International Association for Plant Taxonomy, 2010-04)
    Article 36.1 in the International code of botanical nomenclature requires that, as from 1 January 1935, all names of new plant taxa (algae and fossils excepted) must be accompanied by a Latin description or diagnosis ...
  • (117-119) Proposals to make the pre-publication deposit of key nomenclatural information in a recognized repository a requirement for valid publication of organisms treated as fungi under the Code
    Hawksworth, David Leslie, 1946-; Cooper, Jerry A.; Crous, Pedro W.; Hyde, Kevin D.; Iturriaga, Teresa; Kirk, Paul M.; Lumbsch, H. Thorsten; May, Tom W.; Minter, David W.; Misra, Jitendra K.; Norvell, Lorelei; Redhead, Scott A.; Rossman, Amy Y.; Seifert, Keith A.; Stalpers, Joost A.; Taylor, John W.; Wingfield, Michael J. (International Association for Plant Taxonomy, 2010-04)
    MycoBank is a fully online system whereby the proposers of new scientific names of organisms treated as fungi under the Code can deposit key information that becomes public and freely available on the worldwide web only ...
  • 1-(2-Azaniumylethyl)piperazine-1,4-diium trinitrate
    Rademeyer, Melanie (International Union of Crystallography, 2011)
    Please read abstract in article.
  • 1,3-Bis(2,4,6-trimethylphenyl)-3H imidazol-1-ium tetraoxidorhenate(VII)
    Landman, Marile; Van der Westhuizen, Belinda; Bezuidenhout, Daniela Ina; Liles, David C. (International Union of Crystallography, 2011)
    The title compound, (C21H25N2)[ReO4], was formed as the unexpected product in an attempted synthesis of a rhenium(I)–N-heterocyclic carbene (NHC) complex. The compound has crystallographic mirror symmetry with both the ...
  • 16S rRNA sequence analysis of bacteria present in foaming activated sludge
    Wagner, Ankia Marleen; Cloete, T.E. (Thomas Eugene), 1958- (Elsevier, 2002)
    The formation of a stable viscous foam on activated sludge aeration basin surfaces is a world wide problem. Foam is usually comprised of filamentous bacteria occurring predominantly in the mixed liquor. The lack of ...
  • 2,200-(Piperazine-1,4-diyl)diethanaminium dibenzoate
    Cukrowski, Ignacy; Adeyinka, Adedapo S.; Liles, David C. (International Union of Crystallography, 2012-07-02)
    The asymmetric unit of the title salt C8H22N4 2+2C7H5O2 , comprises two independent pairs of half a 2,2'-(piperazine-1,4- diyl)diethanaminium dication plus a benzoate anion. The dications are symmetrical and lie across ...
  • 3,6-Diazaoctane-1,8-diaminium diiodide
    Cukrowski, Ignacy; Adeyinka, Adedapo S.; Liles, David C. (International Union of Crystallography, 2012-07-02)
    The asymmetric unit of the title salt, C6H20N4 2+ 2I , comprises half a 3,6-diazaoctane-1,8-diaminium dication plus an I anion. The dications are symmetrical and lie across crystallographic centres of inversion. In ...
  • 3-Methylanilinium nitrate
    Rademeyer, Melanie; Liles, David C. (International Union of Crystallography, 2010)
    A fundamental understanding of the role of oxyanion geometry on molecular packing and non-covalent interactions in salt crystal structures is central to the fields of both molecular recognition and crystal engineering. The ...
  • Ab initio studies of hydrogen adatoms on bilayer graphene
    Mapasha, R.E. (Refilwe Edwin); Ukpong, Aniekan M.; Chetty, Nithaya (American Physical Society, 2012-05)
    We present a comparative density functional study of the adsorption of hydrogen on bilayer graphene. Six different exchange-correlation functionals are employed to explore the possible configurations of hydrogen ad- sorption ...
  • Ab initio studies of staggered Li adatoms on graphene
    Mapasha, R.E. (Refilwe Edwin); Chetty, Nithaya (Elsevier, 2010-06)
    We study Li on graphene using the Vienna ab initio Simulation Package employing the projector-augmented wave method within the generalized gradient approximation for the exchange-correlation potential. We give detailed ...
  • Abiotic and biotic determinants of tick burdens in the eastern rock sengi (Elephantulus myurus)
    Lutermann, Heike; Medger, Katarina; Horak, Ivan Gerard (Wiley-Blackwell, 2012)
    Ticks are important vectors of pathogens of medical and veterinary importance worldwide. Despite their economic importance our current knowledge about the factors affecting tick prevalence and abundance in tropical and ...
  • The Acacia controversy resulting from minority rule at the Vienna Nomenclature Section : much more than arcane arguments and complex technicalities
    Moore, Gerry; Smith, G.F. (Gideon Francois), 1959-; Figueiredo, Estrela; Demissew, Sebsebe; Lewis, G.P. (Gwilym Peter); Schrire, Brian D.; Rico, Lourdes; Van Wyk, Abraham Erasmus (Braam); Luckow, Melissa; Kiesling, Roberto; Mario, Sousa S. (International Association for Plant Taxonomy, 2011-06)
    The arguments towards resolving the Acacia nomenclatural controversy put forth by Thiele & al. (2011) are reviewed and rebutted. We argue that a truly pragmatic and, moreover, defensible and equitable alternative to ...
  • Acacia, the 2011 Nomenclature Section in Melbourne, and beyond
    Moore, Gerry; Smith, G.F. (Gideon Francois), 1959-; Figueiredo, Estrela; Demissew, Sebsebe; Lewis, G.P. (Gwilym Peter); Schrire, Brian D.; Rico, Lourdes; Van Wyk, Abraham Erasmus (Braam) (International Association for Plant Taxonomy, 2010-08)
    This paper briefly reports on the developments surrounding the Acacia name conservation controversy since the Nomenclature Section meeting at the Seventeenth International Botanical Congress at Vienna in 2005. Actions taken ...
  • Acceptability of chevon from kids, yearling goats and mature does of indigenous South African goats : a case study
    Simela, Langelihle; Webb, E.C. (Edward Cottington); Bosman, M.J.C. (South African Society for Animal Science, 2008)
    Consumer sensory evaluations of oven-roasted goat and sheep m. longissimus dorsi samples were conducted in two series to determine the acceptability of chevon from indigenous South African goats to consumers. Chevon samples ...
  • Acclimation to high CO2 in maize is related to water status and dependent on leaf rank
    Prins, Anneke; Mukubi, Josephine Muchwesi; Pellny, Till K.; Verrier, Paul J.; Beyene, Getu; Lopes, Marta Silva; Emami, Kaveh; Treumann, Achim; Lelarge-Trouverie, Caroline; Noctor, Graham; Kunert, Karl J.; Kerchev, Pavel; Foyer, Christine H. (Wiley-Blackwell, 2011-02)
    The responses of C3 plants to rising atmospheric CO2 levels are considered to be largely dependent on effects exerted through altered photosynthesis. In contrast, the nature of the responses of C4 plants to high CO2 remains ...
  • Accuracy of using visual identification of white sharks to estimate residency patterns
    Delaney, David G.; Johnson, Ryan L.; Bester, Marthan Nieuwoudt; Gennari, Enrico (Public Library of Science, 2012-04-13)
    Determining the residency of an aquatic species is important but challenging and it remains unclear what is the best sampling methodology. Photo-identification has been used extensively to estimate patterns of animals’ ...
  • Acinetobacter cell biomass, growth stage and phosphorus uptake from activated sludge mixed liquor
    Cloete, T.E. (Thomas Eugene), 1958-; Bosch, M. (Elsevier, 1994)
    Enhanced biological phosphorus removal activated sludge plants often do not remove phosphorus adequately in order to meet legal demands. Currently FeS04 is being added to almost all South African nutrient removal activated ...
  • Acoustic behaviour of southern right whales in relation to numbers of whales present in Walker Bay, South Africa
    Hofmeyer-Juritz, L.H.; Best, Peter B. (NISC (Pty) Ltd and Taylor & Francis, 2011)
    Estimating numbers of whales present in an area from recorded call rates could be a useful conservation tool. We recorded southern right whale Eubalaena australis vocalisations and presence in Walker Bay on the south ...
  • Activity of 7-methyljuglone derivatives against Mycobacterium tuberculosis and as subversive substrates for mycothiol disulfide reductase
    Mahapatra, A.; Mativandlela, S.P.N.; Binneman, B.; Fourie, P. Bernard; Hamilton, Chris J.; Meyer, J.J.M. (Jacobus Johannes Marion); Van der Kooy, Frank; Houghton, Peter James; Lall, Namrita (Elsevier, 2007-12)
    The naphthoquinone 7-methyljuglone (5-hydroxy-7-methyl-1,4-naphthoquinone) has previously been isolated and identified as an active component of root extracts of Euclea natalensis which displays antitubercular activity. ...
  • Adaptation of bacterial cultures to non-oxidising water treatment bactericides
    Brözel, V.S. (Volker Siegfried), 1963-; Pietersen, Belinda; Cloete, T.E. (Thomas Eugene), 1958- (Water Research Council, 1993-07)
    Bacterial communities in water-cooling systems treated with bactericides often become resistant to these bactericides. This has been ascribed to selection for resistant cells. Certain bacteria, having a high inherent ...

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