Now showing items 356-375 of 919

  • Government facilitated access to ICTs: adoption, use and impact on the well-being of indigent South Africans 

    Kassongo, Francois; Tucker, William David; Pather, Shaun (IIMC International Information Management Corporation, 2018)
    This paper presents preliminary results of an assessment of the impact of a government facilitated ICT access programme on the well-being of poor citizens. It examines South African government efforts in the application ...
  • Grafting an ATM network onto an existing ethernet network 

    Tucker, William David; Keats, Derek (Telkom, 1998)
    Grafting an ATM network onto an existing Ethernet network is a non-trivial exercise in network configuration. The process of mating ATM technology to an Ethernet network without tampering the underlying backbone and network ...
  • Granny gets smarter but junior hardly notices 

    Blignaut, Renette; Venter, Isabella Margarethe; Renaud, Karen (College of Communication and Information, 2016)
    To ensure that university computing students are sensitized to the needs of diverse user groups, a course project was designed to allow students to get a realistic understanding of the needs and abilities of the older ...
  • Graphite-anchored lithium vanadium oxide as anode of lithium ion battery 

    Yi, Jin; Key, Julian; Wang, Fei; Wang, Yonggang; Wang, Congxiao (Elsevier, 2013)
    Graphite-anchored lithium vanadium oxide (Li1.1V0.9O2) has been synthesized via a “one-pot” in situ method. The effects of the synthesis conditions, such as the ratio of reaction components and calcination temperature, ...
  • Groundwater discharges to aquatic ecosystems associated with the Table Mountain Group (TMG) aquifer: a conceptual model 

    Roets, Wietsche; Xu, Yongxin; Raitt, Lincoln; Brendonck, Luc (Water Research Commission, 2008)
    This paper reports on a conceptual model that was developed to describe the different groundwater discharge ‘types’ from the Table Mountain Group (TMG) aquifer, that contributes to the different components of the flow ...
  • Groundwater management issues in Southern Africa – An IWRM perspective 

    Braune, Eberhard; Xu, Yongxin (Water Research Commission, 2008)
    In contrast to its strategic role as essential resource to help achieve community development and poverty alleviation in the Southern African Development Community (SADC), groundwater has remained a poorly understood and ...
  • Group B streptococcus serotypes in pregnant women from the Western Cape region of South Africa 

    Africa, Charlene Wilma Joyce; Kaambo, Eveline (Frontiers, 2018-12-04)
    Background: Maternal colonization of Group B streptococci (GBS) during pregnancy is an important risk factor for neonatal morbidity and mortality. The aim of this study was to determine the prevalence and serotype distribution ...
  • Growth of market-size abalone (Haliotis midae) fed kelp (Ecklonia maxima) versus a low-protein commercial feed 

    Francis, Tamson; Maneveldt, Gavin; Venter, Jonathan (Taylor & Francis, 2008)
    The growth of grow-out abalone fed on kelp, with ca. 10 % dry weight protein content, was compared with that of those fed a new ,ca. 26 % protein, commercial feed in a flow-through system on a South African west coast ...
  • The growth of post-weaning abalone (Haliotis midae Linnaeus) fed commercially available formulated feeds supplemented with fresh wild seaweed 

    Dlaza, Thembinkosi; Maneveldt, Gavin; Viljoen, Cecilia (National Inquiry Services Centre (NISC) and Taylor & Francis, 2008)
    The effect of five formulated feeds, supplemented with fresh wild seaweed on the growth of post-weaning juvenile abalone (6 - 20 mm shell length), Haliotis midae Linnaeus was investigated by means of a growth trial at a ...
  • Guaranteed delivery of semi-synchronous IP-based communication 

    Julius, Elroy P.; Tucker, William David (Telkom, 2005)
    This paper presents an empirical solution for guaranteeing the delivery of synchronous and asynchronous messages within a semi-synchronous IPbased communication domain. The communication infrastructure that is needed between ...
  • Guaranteed delivery of semi-synchronous IP-based communication 

    Julius, Elroy P.; Tucker, William David (Telkom, 2004)
    This research aims to find an empirical solution for guaranteeing the delivery of synchronous and asynchronous messages within a semi-synchronous IP-based communication domain. The communication infrastructure that is ...
  • H-Atlas: The cosmic abundance of dust from the far-infrared background power spectrum 

    Thacker, Cameron; Cooray, Asantha; Jarvis, Matt (IOP Science, 2013)
    We present a measurement of the angular power spectrum of the cosmic far-infrared background (CFIRB) anisotropies in one of the extragalactic fields of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) at ...
  • H2O emission in high-z ultra-luminous infrared galaxies 

    Omont, A.; Yang, Chentao; Cox, P.; Jarvis, Matt (edp sciences, 2013)
    Using the IRAM Plateau de Bure interferometer (PdBI), we report the detection of water vapor in six new lensed ultraluminous starburst galaxies at high redshift, discovered in the Herschel Astrophysical Terahertz Large ...
  • Hackathons as a means of accelerating scientific discoveries and knowledge transfer 

    Ghouila, Amel; Siwo, Geoffrey Henry; Entfellner, Jean-Baka Domelevo; Panji, Sumir (Cold Spring Harbor Laboratory Press, 2018)
    Scientific research plays a key role in the advancement of human knowledge and pursuit of solutions to important societal challenges. Typically, research occurs within specific institutions where data are generated and ...
  • Handheld fast-track feedback instant messaging 

    Adesemowo, A. Kayode; Tucker, William David (Telkom, 2003)
    As mobile devices and networks become more data-centric, text messaging requires an extension of co-presence capabilities for better interactive discussion between input/output handicapped handheld users and their free ...
  • HE 0230−4323 revisited: a new rapidly pulsating sdB star 

    Kilkenny, David; Koen, Chris; Worters, H. (Oxford University Press, 2010)
    HE 0230−4323 is a hot sdB star in a binary system. An earlier work demonstrated that the light curve of the system shows a strong (∼4 per cent) reflection effect and also appears to exhibit photometric variations of the ...
  • HE0230–4323: an unusual pulsating hot subdwarf star 

    Koen, Chris (Oxford University Press, 2007)
    HE 0230−4323 is a known binary, consisting of a subdwarf star and a companion which is not observable in the optical. Photometric measurements reported in this paper have shown it to be both a reflection-effect and a ...
  • Heavy metals in the irrigation water, soils and vegetables in the Philippi horticultural area in the Western Cape Province of South Africa 

    Malan, M.; Müller, F.; Cyster, L.; Raitt, Lincoln; Aalbers, J. (Springer Verlag, 2014)
    The aims of this study were to investigate the extent of heavy metal contamination in the Philippi horticultural area in the Western Cape Province, South Africa. Concentrations of Cd, Cr, Cu, Mn, Ni, Pb and Zn were ...
  • HerMES: Candidate gravitationally lensed galaxies and lensing statistics at submillimeter wavelengths 

    Wardlow, Julie L.; Cooray, Asantha; De Bernardis, Francesco; Amblard, A.; Arumugam, V.; Aussel, H.; Baker, A.J.; Bethermin, M.; Blundell, R.; Bock, J.; Boselli, A.; Bridge, C.; Buat, V.; Burgarella, D.; Bussmann, R.S.; Cabrera-Lavers, A.; Calanog, J.A.; Carpenter, J.M.; Casey, C.M.; Castro-Rodríguez, N.; Cava, A.; Chanial, P.; Chapin, E.; Chapman, S.C.; Clements, D.L.; Conley, A.; Cox, P.; Dowell, C.D.; Dye, S.; Eales, S.; Farrah, D.; Ferrero, P.; Franceschini, Alberto; Frayer, D.T.; Frazer, C.; Fu, Hai; Gavazzi, R.; Glenn, J.; González Solares, E.A.; Griffin, M.; Gurwell, M.A.; Harris, A.I.; Hatziminaoglou, Evanthia; Hopwood, R.; Hyde, A.; Ibar, Edo; Ivison, R.J.; Kim, S.; Lagache, G.; Levenson, L.; Marchetti, L.; Marsden, G.; Martinez-Navajas, P.; Negrello, M.; Neri, R.; Nguyen, H.T.; OHalloran, B.; Oliver, S.J.; Omont, A.; Page, Matthew J.; Panuzzo, P.; Papageorgiou, A.; Pearson, C.P.; Perez-Fournon, E.; Pohlen, M.; Riechers, D.; Rigopoulou, D.; Roseboom, I.G.; Rowan-Robinson, M.; Schulz, B.; Scott, Douglas; Scoville, N.; Seymour, N.; Shupe, D.L.; Smith, A.J.; Streblyanska, A.; Strom, A.; Symeonidis, Myrto; Trichas, M.; Vaccari, M.; Vieira, J.D.; Viero, M. P.; Wang, L.; Xu, C.K.; Zemcov, M.; Yan, L. (American Astronomical Society, 2013)
    Gravitational lensing increases the angular size and integrated flux of affected sources. It is exploited to investigate the mass distribution of the foreground lensing structures and the properties of the background lensed ...
  • Hermes: Cosmic infrared background anisotropies and the clustering of dusty star-forming galaxies 

    Viero, M. P.; Wang, L.; Zemcov, M.; Addison, G.; Amblard, A.; Arumugam, V.; Aussel, H.; Bethermin, M.; Bock, J.; Boselli, A.; Buat, V.; Burgarella, D.; Casey, C.M.; Clements, D.L.; Conley, A.; Conversi, L.; Cooray, Asantha; de Zotti, G.; Dowell, C.D.; Farrah, D.; Franceschini, Alberto; Glenn, J.; Griffin, M.; Hatziminaoglou, Evanthia; Heinis, S.; Ibar, Edo; Ivison, R.J.; Lagache, G.; Levenson, L.; Marchetti, L.; Marsden, G.; Nguyen, H.T.; OHalloran, B.; Oliver, S.J.; Omont, A.; Page, Matthew J.; Papageorgiou, A.; Pearson, C.P.; Perez-Fournon, I.; Pohlen, M.; Rigopoulou, D.; Roseboom, I.G.; Rowan-Robinson, M.; Schulz, B.; Scott, Douglas; Seymour, N.; Shupe, D.L.; Smith, A.J.; Symeonidis, Myrto; Vaccari, M.; Valtchanov, I.; Vieira, J.D.; Wardlow, Julie L.; Xu, C.K. (American Astronomical Society, 2013)
    Star formation is well traced by dust, which absorbs the UV/optical light produced by young stars in actively starforming regions and re-emits the energy in the far-infrared/ submillimeter (FIR/submm; e.g., Savage & ...