Browsing Faculty of Natural Science by Title
Now showing items 2107-2126 of 2563
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Screening of Selected Libyan Medicinal Plants for the Synthesis of Metal Nanoparticles and their activity against Streptococcus mutans
(University of the Western Cape, 2020)Nanotechnology has emerged as an elementary division of modern science and stemmed directly from green chemistry twelve basic concepts, it receives global attention due to its unique character and ample applications. It ... -
Search for low spin collective structures in 158Er and 159Er
(2013)Lying in a rapidly-changing transitional region between nuclei that may behave as spherical vibrators (N ≤ 88) or good rotors (N ≥ 92), the N = 90 isotones present a unique testing ground where new nuclear collective ... -
Search for tetrahedral bands in yb isotopes
(University of the Western Cape, 2007)Calculations by Dudek et al. predict shell gaps for tetrahedrally shaped nuclei at various proton and neutron numbers. 160Yb is expected to be a favourable nucleus, with tetrahedral bands predicted to lie 1 MeV above the ... -
Seasonal differences in semen characteristics and sperm functionality in Tankwa goats
(University of the Western Cape, 2018)Tankwa goats have been free-ranging in the Tankwa Karoo National Park in the Northern Cape for more than 80 years. A genetic study concluded that these feral goats are a unique genetic resource compared to other goat breeds ... -
Seasonal dynamics of edaphic bacterial communities in the hyper-arid Namib desert
(University of the Western Cape, 2014)The aim of this study is to investigate the edaphic bacterial community dynamics over short (57 days) and long-term (1 year) sampling intervals using an extensive sampling strategy in combination with community fingerprinting ... -
Seasonal dynamics of edaphic bacterial communities in the hyper-arid namib desert
(2012)The Namib Desert is a hyper-arid, coastal desert with limited bioavailable water and nutrients; characteristics which collectively impose constraints on edaphic microbial communities. Several studies in the Namib Desert ... -
Seasonal effects on the feeding ecology and habitat of Chersina Angulata in the South Western Cape
(University of the Western Cape, 2008)Nearly one-third of the world’s tortoises live in South Africa, but little is known about their habitat requirements and feeding ecology. Chersina angulata, the angulate tortoise, is endemic to southern Africa, with a ... -
Seasonal movement and activity patterns of the endangered geometric tortoise, psammobates geometricus
(University of the Western Cape, 2005)Due to the critical status of Psammobates geometricus and the vulnerability of their habitat, there is a need to allocate areas for their protection. The aim of this study was to provide information on the space requirements ... -
Seaweed extract effects on potato (Solanum Tuberosum 'BP1') and grape (Vitis Vinifera Var. Sultana) Production
(University of the Western Cape, 2017)Field trials were conducted to determine the effects of a locally produced seaweed extract product (Afrikelp LG-1), on the growth parameters and yield of Solanum tuberosum 'BP1'potato crop and Vitis vinifera var. sultana ... -
Secondary metabolites of the uromycladium tepperianum macalpine epiphytic fungus
(University of the Western Cape, 2021)Research on natural products and medicinal plants has been conducted more with each passing year due to the great interest in isolating bioactive compounds and secondary metabolites from natural products such as plants, ... -
Secondary metabolites of the uromycladium tepperianum McAlpine epiphytic fungus
(University of the Western Cape, 2021)Research on natural products and medicinal plants has been conducted more with each passing year due to the great interest in isolating bioactive compounds and secondary metabolites from natural products such as plants, ... -
Secure contactless mobile financial services with near field communication
(University of the Western Cape, 2011)This thesis presents the results from work with three prototypes that use Near Field Communication technology to provide secure contactless mobile nancial services on mobile phones. -
Security related self-protected networks: autonomous threat detection and response (ATDR)
(University of the Western Cape, 2021)Cybersecurity defense tools, techniques and methodologies are constantly faced with increasing challenges including the evolution of highly intelligent and powerful new generation threats. The main challenges posed by ... -
Security related self-protected networks: Autonomous threat detection and response (ATDR)
(University of Western Cape, 2021)Cybersecurity defense tools, techniques and methodologies are constantly faced with increasing challenges including the evolution of highly intelligent and powerful new-generation threats. The main challenges posed by ... -
Sedimentological re-interpretation of the early cretaceous oil reservoir in the Northern Bredasdorp Basin, offshore South Africa
(University of the Western Cape, 2015)This study was aimed at determining the sedimentary environment, its evolution and facies areal distribution of the Upper Shallow Marine (USM, Late Valanginian). The study was conducted in wells E-S1, F-AH4 and E-W1 in the ... -
Sedimentological re-interpretation of zone 3 (Upper Shallow Marine) of selected wells, Bredasdorp Basin (Offshore South Africa)
(University of the Western Cape, 2014)The Bredasdorp Basin is located on the southern continental margin, off the coast of South Africa. It is mostly filled by marine Aptian to Maastrichtian deposits, overlaying pre-existing Late Jurassic to Early Cretaceous ... -
Seismic interpretation and 2D restoration of F-A gas field, Bredasdorp Basin south coast of South Africa
(University of the Western Cape, 2014)Seismic interpretation is always somewhat an uncertainty and questions on whether the horizons picked are properly correlated across faults and or the structures mapped are geologically or geometrically sensible always ... -
Seisoensfluktuasies in Industriële produksie en die Aandelemark met spesiale verwysing na die Suid - Afrikaanse situasie
(University of the Western Cape, 1991)In 1976 Rozeff and Kinney found that seasonality exists in the monthly rates of return on the New York Stock Exchange with peak periods in January. By making use of this information and the fact that the rates of return ... -
Selected antiretroviral and anti-tuberculosis drug combinations by non-covalent bonding
(University of Western Cape, 2021)Treatment of the human immunodeficiency virus (HIV) and tuberculosis (TB) infections have become very complicated due to the advent of drug resistance. Drug combinations offer an alternative approach to reducing the emergence ... -
Selection and optimization of the seeding procedure prior to the synthesis of Pd-based membranes
(University of the Western Cape, 2014)Pd based membranes are known for their incredible selectivity towards H2. In order for Pd membranes to display high H2 selectivity, a defect free layer of Pd needs to be deposited onto a support. Although various fabrication ...