Now showing items 363-382 of 458

  • Salinity of irrigation water in the Philippi farming area of the Cape Flats, Cape Town, South Africa 

    Aza-Gnandji, Ruben C.D.; Xu, Yongxin; Raitt, Lincoln; Levy, Jonathan (Water Research Commission, 2013)
    This paper explores the nature, source and spatial variation of the salinity of water used for irrigation in a coastal urban farming area in Cape Town, South Africa, where water from the Cape Flats aquifer is drawn into ...
  • Scale insects on ericas : an apparently natural, unnoticeable threat to local biodiversity 

    Maneveldt, Gavin (Botanical Society of South Africa, 2008)
    Introduction: An excursion into the Limietberg Nature Reserve in the Bain's Kloof Mountains during the winter of 2006, one that I have undertaken regularly over the past ten years or so, had revealed a noticeably high ...
  • The scientific merit of Carpobrotus mellei L. based on antimicrobial activity and chemical profiling 

    Springfield, E. P.; Weitz, F. (Academic Journals, 2006)
    Species of the genus Carpobrotus are similar in appearance and have been used for medicinal purposes over many generations. Carpobrotus mellei is endemic to the south-Western Cape of South Africa, and also used for various ...
  • A search for p-mode pulsations in white dwarf stars using the Berkeley Visible Imaging Tube detector 

    Kilkenny, David; Welsh, B.Y.; Koen, Chris; Gulbis, A.A.S.; Kotze, M.M. (Oxford University Press, 2014)
    We present high-speed photometry (resolution 0.1 s) obtained during the commissioning of the Berkely Visible Imaging Tube system on the Southern African Large Telescope (SALT). The observations were an attempt to search ...
  • The search for the ideal biocatalyst 

    Burton, Stephanie; Cowan, Donald A.; Woodley, John M. (Nature Publishing Group, 2002)
    While the use of enzymes as biocatalysts to assist in the industrial manufacture of fine chemicals and pharmaceuticals has enormous potential, application is frequently limited by evolution-led catalyst traits. The advent ...
  • Seasonal variation of citrinin in traditionally brewed African beer 

    Ikalafeng, B.K.; Pool, E.J.; Lues, R.; Groenewald, W.H. (Academic Journals, 2013)
    A seasonal study on citrinin concentrations in traditional beer was conducted using a standardised enzyme-linked immunosorbent assay. Representative samples of indigenous South African beer were collected during the hot, ...
  • Seaweed diversity associated with a Brazilian tropical rhodolith bed 

    Amado-Filho, Gilberto M.; Maneveldt, Gavin; Pereira-Filho, G.H.; Manso, R.C.C.; Bahia, Ricardo (Universidad Autónoma de Baja California, 2010)
    This study describes the predominantly tropical, subtidal seaweed populations growing on rhodoliths between 4 and 18 m depth in the southern part of Espírito Santo State (Brazil). Qualitative and quantitative sampling ...
  • Secure contactless smart card transactions on mobile devices 

    Poroye, Adeola; Tucker, William David; Norman, Michael (Telkom, 2009)
    This paper presents work in progress to explore the utility of Near Field Communication technology to secure mobile financial services. The objective is to evaluate the potential of this approach as an upcoming technology ...
  • Security of a Mesh Potato Network in Ad Hoc Mode 

    Mauwa, H.; Tucker, William David (Telkom, 2013)
    Wireless Mesh Networks can provide low cost and reliable community-owned connectivity in developing rural areas. A rural community can use mesh networks to access a wide range of modern information and communication ...
  • Self-similarity of human protein interaction networks: a novel strategy of distinguishing proteins 

    Fadhal, Emad; Gamieldien, Junaid; Mwambene, Eric (2015)
    The successful determination of reliable protein interaction networks (PINs) in several species in the post-genomic era has hitherto facilitated the quest to understanding systems and structural properties of such networks. ...
  • Sequence analysis of an Archaeal virus isolated from a hypersaline lake in Inner Mongolia, China 

    Pagaling, Eulyn; Haigh, Richard D.; Grant, William D.; Cowan, Donald A.; Jones, Brian; Ma, Yanhe; Ventosa, Antonio; Heaphy, Shaun (BioMed Central, 2007)
    Background: We are profoundly ignorant about the diversity of viruses that infect the domain Archaea. Less than 100 have been identified and described and very few of these have had their genomic sequences determined. ...
  • Service learning in pharmacy: Opportunities for student learning and service delivery 

    Bheekie, Angeni; Obikeze, Kenechukwu; Bapoo, Rafik; Ebrahim, Naushaad (Academic Journals, 2011)
    High patient load and understaffing in public health care facilities preclude the provision of optimal pharmaceutical services in South Africa. A Service Learning in Pharmacy (SLIP) programme for the University of the ...
  • The Severe Acute Respiratory Syndrome Coronavirus 3a Protein Up-Regulates Expression of Fibrinogen in Lung Epithelial Cells 

    Tan, Yee-Joo; Tham, Puay-Yoke; Chan, Daphne Z. L.; Chou, Chih-Fong; Shen, Shuo; Fielding, Burtram C.; Tan, Timothy H.P.; Lim, Seng Gee; Hong, Wanjin (American Society for Microbiology, 2005)
    Here we analyzed the gene expression profile of cells that stably express the severe acute respiratory syndrome coronavirus (SARS-CoV) 3a protein to determine its effects on host functions. A lung epithelial cell-line, ...
  • Severe acute respiratory syndrome coronavirus protein 7a interacts with hSGT 

    Fielding, Burtram C.; Gunalan, Vithiagaran; Tan, Timothy H.P.; Chou, Chih-Fong; Shen, Shuo; Khan, Sehaam; Lim, Seng Gee; Hong, Wanjin; Tan, Yee-Joo (Elsevier, 2006)
    Severe acute respiratory syndrome coronavirus (SARS-CoV) 7a is an accessory protein with no known homologues. In this study, we report the interaction of a SARS-CoV 7a and small glutamine-rich tetratricopeptide repeat-containing ...
  • SignSupport: a limited communication domain mobile aid for a Deaf patient at the pharmacy 

    Motlhabi, Michael B.; Glaser, Meryl; Tucker, William David (Telkom, 2013)
    This paper discusses a prototype for a communication aid on a mobile phone to support a Deaf1 person visiting a public hospital pharmacy. The aim is to prevent problems of non-compliance to treatment due to poor communication ...
  • Simulation of Y-chromosomal haplotype data 

    Koen, Chris; D’Amato, M.E. (Elsevier, 2010)
    The non-recombining nature of the Y-chromosome determines the non-independence of alleles between loci. The evolution of short tandem repeat (STR) loci in the Y-chromosome is the result of different factors such as ...
  • SIP presence location service 

    Wu, Wilson; Radovanovic, Aleksandar; Tucker, William David (Telkom, 2005)
    This paper presents an innovative use of the Session Initiation Protocol (SIP) for the subscription and notification of geographic information in order to provide a privacy concerned location-based service. SIP is a signaling ...
  • Situation-aware routing based on link quality for static mesh networks with mobile nodes 

    Kobo, Hlabishi Isaac; Tucker, William David; Liu, Xiao Ming (Telkom, 2011)
    Situation-aware routing seeks to improve quality of service on hybrid wireless mesh networks by making routing decisions based on the current situation of the network. BATMAN-adv is a mesh routing protocol that counts ...
  • Situation-aware routing for wireless mesh networks with mobile nodes 

    Kobo, Hlabishi Isaac; Tucker, William David (IIMC International Information Management Corporation, 2012)
    This paper describes a situation-aware algorithm based on the current situation of a mesh network with mobile nodes that improves quality of service. After running laboratory performance tests, we concluded that a ...
  • Snow impact on groundwater recharge in Table Mountain Group aquifer systems with a case study of the Kommissiekraal River catchment South Africa 

    Wu, Yong; Xu, Yongxin (Water Research Commission, 2005)
    Snowmelt in the mountainous areas of the Table Mountain Group (TMG) in South Africa is believed to be one of sources of groundwater recharge in some winter seasons. This paper provides a scientific assessment of snow ...