NRF IR Repository

Browsing Natural & Agricultural Sciences by Title

Browsing Natural & Agricultural Sciences by Title

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  • Abramowski, A; Aharonian, F; Ait Benkhali, F; et al (American Astronomical Society, 2015-02-18)
    Very high energy (VHE, $E>$100 GeV) $\gamma$-ray flaring activity of the high-frequency peaked BL Lac object \pg\ has been detected by the \hess\ telescopes. The flux of the source increased by a factor of 3 during the ...
  • Ghana, S; Suleman, N; Compton, SG (Wiley, 2015-06)
    1. Fig trees (Ficus spp.) and their host‐specific pollinator fig wasps (Agaonidae) are partners in an obligate mutualism. Receptive phase figs release specific volatiles to attract their pollinators, and this is generally ...
  • Labuschagne, MT; Moloi, MJ; Van Biljon, A (Elsevier, 2016-05)
    Protein quantity and quality of wheat flour have been found to be influenced by abiotic stress conditions. The aim of this study was to determine the effect of heat, drought and cold stress on protein quantity and quality ...
  • Abramowski, A; Aharonian, F; Ait Benkhali, F; et al (Nature Publishing Group, 2016-03-16)
    Galactic cosmic rays reach energies of at least a few petaelectronvolts1 (of the order of 1015 electronvolts). This implies that our Galaxy contains petaelectronvolt accelerators (‘PeVatrons’), but all proposed models of ...
  • Fogel, R; Limson, J; Seshia, A (Portland Press, 2016-06-30)
    Resonant and acoustic wave devices have been researched for several decades for application in the gravimetric sensing of a variety of biological and chemical analytes. These devices operate by coupling the measurand (e.g. ...
  • Achili, B; Daachi, B; Madani, T; Djouani, k (Elsevier, 2016-07-12)
    This paper deals with the design of an adaptive observer based both on a Multi-Layer Perceptron Neural Network (MLPNN) and a sliding mode technique. Its main objective is to construct the complete state of a given exoskeleton ...
  • Gule, NP; Begum, NM; Klumperman, B (The Royal Society, 2016-02-21)
    The attachment of microbial biomass on solid surfaces is a universal phenomenon that occurs in natural and engineering systems and is responsible for various types of biofouling. Biological fouling, also referred to as ...
  • Tavani, M; Pittori, C; Verrecchia, F; Bulgarelli, A; Giuliani, A; Donnarumma, I; Argan, A; Trois, A; Lucarelli, F; Marisaldi, M; Del Monte, E; Evangelista, Y; Fioretti, V; Zoli, A; Piano, G; Munar-Adrover, P; Antonelli, LA; Barbiellini, G; Caraveo, P; Cattaneo, PW; Costa, E; Feroci, M; Ferrari, A; Longo, F; Mereghetti, S; Minervini, G; Morselli, A; Pacciani, L; Pellizzoni, A; Picozza, P; Pilia, M; Rappoldi, A; Sabatini, S; Vercellone, S; Vittorini, V; Giommi, P; Colafrancesco, S; Cardillo, M; Galli, M; Fuschino, F (American Astronomical Society, 2016-06-23)
    We report the results of an extensive search through the AGILE data for a gamma-ray counterpart to the LIGO gravitational-wave (GW) event GW150914. Currently in spinning mode, AGILE has the potential of cover 80% of the ...
  • Laurie, SM; Tjale, SS; Van den Berg, AA; Mtileni, MM; Labuschagne, MT (National Inquiry Services Centre, 2015-05)
    Sweetpotato is grown in diverse environments of South Africa by both commercial and subsistence farmers. The aim of the present study was to assess the stability, agronomic performance and palatability of new ARC cultivars ...
  • Strydom, L; Jewell, J; Meier, MA; George, GM; Pfister, B; Zeeman, S; Kossmann, J; Lloyd, JR (Oxford University Press, 2017-01-24)
    Escherichia coli accumulate or degrade glycogen depending on environmental carbon supply. Glycogen phosphorylase (GlgP) and glycogen debranching enzyme (GlgX) are known to act on the glycogen polymer, while maltodextrin ...
  • Cremer, C; Vierbuchen, T; Hein, L; Fischer, R; Barth, S; Nachreiner, T (Lippincott, Williams & Wilkins, 2015-04)
    Human cytolytic fusion proteins (hCFPs) are therapeutically efficacious recombinant polypeptides comprising a target cell-specific binding component and a human effector domain that induces apoptosis. Compared with former ...
  • Zhao, ZH; Reddy, GVP; Hui, C; Li, BL (Elsevier Masson, 2016-08-16)
    The past 50 years have seen substantial change of agroecosystems in the world, including an intensified use of agrochemicals and expansion of cropland, resulting in a rapid loss of biodiversity and a reduction of ecosystem ...
  • Wilson, A-L; Shuttleworth, A; Downs, CT (Springer Verlag, 2014-08-15)
    There is a paucity of studies investigating the digestive efficiencies of avian frugivores fed fibrous (also referred to as woolly) aril pulp. We fed whole Strelitzia nicolai seeds with arils to captive Red-winged Starlings ...
  • Wang, R; Segar, ST; Barwell, L; Harper, M; Peng, Y-Q; Yu, H; Compton, SG (Wiley, 2015-08)
    1. Facilitation is recorded from diverse plant–insect interactions, including pollination and herbivory. 2. The significance of facilitation resulting from the behavior of males of multiple fig wasp species inside figs ...
  • Robertson, MP; Visser, V; Hui, C (Wiley, 2016-02-20)
    Occurrence data from museum and herbarium collections are valuable for mapping biodiversity patterns in space and time. Unfortunately these collections datasets contain many errors and suffer from several data quality ...
  • Boyero, L; Pearson, RG; Hui, C; Gessner, MO; Perez, J; Alexandrou, MA; Grac¸a, MAS; Cardinale, BJ; Albarin˜o, RJ; Arunachalam, A; Barmuta, LA; Boulton, AJ; Bruder, A; Callisto, M; Chauvet, E; Death, RG; Dudgeon, D; Encalada, AC; Ferreira, V; Figueroa, R; Flecker, AS; Gonc¸alves Jr, JF; Helson, J; Iwata, T; Jinggut, T; Mathooko, J; Mathuriau, C; M’Erimba, C; Moretti, MS; Pringle, CM; Ramırez, A; Ratnarajah, L; Rincon, J; Yule, CM (The Royal Society Publishing, 2016-04-27)
    Plant litter breakdown is a key ecological process in terrestrial and freshwater ecosystems. Streams and rivers, in particular, contribute substantially to global carbon fluxes. However, there is little information available ...
  • Warner, J; Combrink, X; Myburgh, J; Downs, CT (Springer Verlag, 2016-07)
    Generally crocodilians have received little attention with regard to the effects of lead toxicity despite their trophic status as apex, generalist predators that utilize both aquatic and terrestrial habitats, thereby ...
  • Alagaili, AN; Bennett, NC; Mahomed, OB; Zalmout, IS; Boyles, JD (Elsevier, 2017-02)
    Most desert small mammals use mechanisms to avoid overheating or dehydration during summer (e.g. nocturnality or torpor), but some are apparently able to cope with higher body temperatures (Tb) than normally recorded for ...
  • Thomas, HG; Swanepoel, D; Bennett, NC (Taylor & Francis, 2016-04)
    The burrow architecture (length, internal dimensions, fractal dimension of tunnel systems, number of nesting chambers and surface mounds) was investigated in the Damaraland mole-rat (Fukomys damarensis). A total of 31 ...
  • Shi, PJ; Chen, L; Hui, C; Grission-Mayer, HD (Elsevier, 2015-11-11)
    Of the many mathematical models proposed for capturing the dynamics of plant growth, the beta sigmoid function (BSF) is the newest and consequently is not well known to ecologists. A recent software package based on the ...