Now showing items 451-470 of 606

  • The Q/U imaging experiment instrument 

    Biscoff, C.; Brizius, A.; Zwart, J.; Buder, I.; Chinone, Y.; Cleary, K.; Dumoulin, R. N.; Kusaka, A.; Monsalve, R.; Næss, S. K.; Newburgh, L. B.; Nixon, G.; Reeves, R.; Smith, K. M.; Vanderlinde, K.; Wehus, I. K.; Bogdan, M.; Bustos, R.; Church, S. E.; Davis, R.; Dickenson, C.; Eriksen, H. K.; Gaier, T.; Gundersen, J. O.; Hasegawa, M.; Hazumi, M.; Holler, C.; Huffenberger, K. M.; Imbriale, W. A.; Ishidoshiro, K.; Jones, M. E.; Kangaslahti, P.; Kapner, D. J.; Lawrence, C. R.; Leitch, E. M.; Limon, M.; McMahon, J. J.; Miller, A. D.; Nagai, M.; Nguyen, H.; Pearson, T. J.; Piccirillo, L.; Radford, S. J. E.; Readhead, A. C. S.; Richards, J. L.; Samtleben, D.; Seiffert, M.; Shepherd, M. C.; Staggs, S. T.; Tajima, O.; Thompson, K. L.; Williamson, R.; Winstein, B.; Wollack, E. J. (The American Astronomical Society, 2013)
    The Q/U Imaging ExperimenT (QUIET) is designed to measure polarization in the cosmic microwave background, targeting the imprint of inflationary gravitational waves at large angular scales(∼1◦). Between 2008 October and ...
  • A qualitative study of referring agents’ perceptions of access barriers to inpatient substance abuse treatment centres in the Western Cape 

    Isobell, Deborah; Kamaloodien, Kamal; Savahl, Shazly (BioMed Central, 2015)
    Background: Despite empirical support for the individual and public health benefits of treating substance use disorders (SUDs) , access to these services is impeded by several barriers. Although many studies on access ...
  • Quantification and identification of sperm subpopulations using computer-aided sperm analysis and species-specific cut-off values for swimming speed 

    Maree, Liana; van der Horst, Gerhard (Taylor & Francis, 2013)
    Motility is an essential characteristic of all fl agellated spermatozoa and assessment of this parameter is one criterion for most semen or sperm evaluations. Computer-aided sperm analysis (CASA) can be used to measure ...
  • A query-based SMS translation in information access system 

    Adesina, Ademola Olusola; Agbele, Kehinde K.; Azeez, Nureni A.; Abidoye, Ademola P. (Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd., 2011)
    Mobile technology has contributed to the evolution of several media of communication such as chats, emails and short message service (SMS) text. This has significantly influenced the traditional standard way of expressing ...
  • Radio-loud active calactic nucleus: is there a link between luminosity and cluster environment? 

    Ineson, J.; Croston, J. H.; Jarvis, M. J.; Hardcastle, M. J.; Evans, D. A.; Kraft, R. P. (American Physical Society, 2013)
    We present here the first results from the Chandra ERA (Environments of Radio-loud AGN) Large Project, characterizing the cluster environments of a sample of 26 radio-loud active galactic nuclei (AGNs) at z ∼ 0.5 that ...
  • Rapid assessment of tissue nitrogen in cultivated Gracilaria gracilis (Rhodophyta) and Ulva lactuca (Chlorophyta) 

    Robertson-Andersson, Deborah; Wilson, D.T.; Bolton, John J.; Anderson, Robert J.; Maneveldt, Gavin (NISC, 2009)
    Tissue nitrogen content and thallus colour were quantified using a rapid assessment method based on the Pantone® matt uncoated formula guide for raft-cultivated Gracilaria gracilis Steentoft Irvine et Farnham at Saldanha ...
  • Rare fungal species isolated from Libyan diabetic patients 

    Esmaio, Mustafa; Abrantes, Pedro Miguel dos Santos; Africa, Charlene Wilma Joyce (Infection Control Africa Network (ICAN), 2016)
    BACKGROUND AND OBJECTIVES: The emerging resistance of Candida species to antifungals routinely used to treat candidiasis in HIV patients and in patients with diabetes mellitus (DM) has resulted in the frequent isolation ...
  • A re-assessment of the nearest neighbour alignment of the X-ray isophotes of galaxy clusters 

    Koen, Chris; Lombard, Fred (Oxford University Press, 2006)
    Alignment is defined as the tendency of the distribution of pointing angles between the major axes of clusters and their nearest neighbours to be more concentrated towards small values for small nearest neighbour distances, ...
  • Real-time gesture recognition using eigenvectors 

    Segers, Vaughn; Connan, James (2009)
    This paper discusses an implementation for gesture recognition using eigenvectors under controlled conditions. This application of eigenvector recognition is trained on a set of defined hand images. Training images are ...
  • Reconstruction of major maternal and paternal lineages of the Cape Muslim population 

    Isaacs, Shafieka; Geduld-Ullah, Tasneem; Benjeddou, Mongi (Sociedade Brasileira de Genética, 2013)
    The earliest Cape Muslims were brought to the Cape (Cape Town - South Africa) from Africa and Asia from 1652 to 1834. They were part of an involuntary migration of slaves, political prisoners and convicts, and they ...
  • Reflection on three years of rural wireless Internet Protocol communication 

    Tucker, William David; Blake, Edwin H.; Marsden, Gary; Pearson, Murray; Westerveld, Rudi (Telkom, 2007)
    This paper reports on three years of research and fieldwork with a rural wireless Internet Protocol communication project. We built a long-range WiFi network and custom communication software to support a rural telehealth ...
  • Relevant computing curricula in Sub-Saharan Africa 

    Rai, Idris; Rodrigues, Anthony; Venter, Isabella M.; Mills, Godfrey; Suleman, Hussein; Edumadze, John (2011)
    The principle objective of this research was to establish what computing curricula are required for the Sub-Saharan Africa region. Input from academics, businessmen and the analyses of curricula from several African ...
  • Reliable communication across ad hoc networks 

    Daniels, Francois; Tucker, William David (Telkom, 2008)
    This paper presents a fully decentralised peer-topeer voice communication tool intended for use across mobile ad hoc networks (MANET) by distributed groups who desired collaboration. We examined the synergy between MANETs ...
  • Revealing the cold dust in low-metallicity environments: I. Photometry analysis of the Dwarf Galaxy Survey with Herschel 

    Remy-Ruyer, A.; Madden, S.C.; Galliano, F.; Hony, S.; Sauvage, M.; Bendo, G. J.; Roussel, H.; Pohlen, M.; Smith, M. W. L.; Galametz, M.; Cormier, D.; Lebouteiller, V.; Wu, R.; Baes, M.; Barlow, M. J.; Boquien, M.; Boselli, A.; Ciesla, L.; De Looze, I.; Karczewski, O. Ł.; Panuzzo, P.; Spinoglio, L.; Vaccari, M.; Wilson, C.D. (EDP Sciences, 2013)
    Context. We present new photometric data from our Herschel Guaranteed Time Key Programme, the Dwarf Galaxy Survey (DGS), dedicated to the observation of the gas and dust in low-metallicity environments. A total of 48 ...
  • Review and re-analysis of domain-specific 16S primers 

    Baker, Gillian; Smith, Jacques J.; Cowan, Donald A. (Elsevier, 2003)
    The Polymerase Chain Reaction (PCR) has facilitated the detection of unculturable microorganisms in virtually any environmental source and has thus been used extensively in the assessment of environmental microbial diversity. ...
  • Review: groundwater management and groundwater/surface-water interaction in the context of South African water policy 

    Levy, Jonathan; Xu, Yongxin (Springer Verlag, 2011)
    Groundwater/surface-water interaction is receiv¬ing increasing focus in Africa due to its importance to ecologic systems and sustainability. In South Africa's 1998 National Water Act (NWA), water-use licenses, including ...
  • Reviewing evidence of marine ecosystem change off South Africa 

    Moloney, C. L.; Fennessy, S. T.; Gibbons, Mark J.; Roychoudhury, A.; Shillington, F. A.; von der Heyden, B. P.; Watermeyer, K. (National Inquiry Services Centre, 2013)
    Recent changes have been observed in South African marine ecosystems. The main pressures on these ecosystems are fishing, climate change, pollution, ocean acidification and mining. The best long-term datasets are for trends ...
  • Revised SWIRE photometric redshifts 

    Rowan-Robinson, Michael; Gonzalez-Solares, Eduardo A.; Vaccari, Mattia; Marchetti, Lucia (Oxford University Press, 2013)
    We have revised the Spitzer Wide-Area Infrared Extragalactic survey (SWIRE) Photometric Redshift Catalogue to take account of new optical photometry in several of the SWIRE areas, and incorporating Two Micron All Sky ...
  • A revision of the genus Strongylodesma Lévi (Porifera: Demospongiae: Latrunculiidae) with descriptions of four new species 

    Samaai, Toufiek; Gibbons, Mark J.; Kelly, Michelle (Cambridge University Press, 2009)
    The sponge genus Strongylodesma is reviewed and redefined, and now accommodates eight closely related species. The type species of Strongylodesma Le´vi is redescribed and an additional two new species are described from ...