Now showing items 21-30 of 344
The effect of ploughing and augmenting natural vegetation with commercial fynbos species on the biodiversity of Overberg Sandstone fynbos on the Agulhas Plain, South Africa
In an attempt to reconcile wildflower cultivation with plant diversity conservation, we investigate the effect that different augmentation techniques (including ploughing and burning) have on the plant diversity of the ...
Drought induced xylem embolism in four riparian trees from the Western Cape Province: Insights and implications for planning and evaluation of restoration
In Mediterranean climates, rainfall is restricted to periods of low evaporative demand, leaving plants to survive the summer drought. The purpose of this study was to determine the contribution of drought tolerance to the ...
Can riparian seed banks initiate restoration after alien plant invasion? Evidence from the Western Cape, South Africa
Riparian zones are complex disturbance-mediated systems that are highly susceptible to invasion by alien plants. They are prioritized in most alien-plant management initiatives in South Africa. The current practice for the ...
Flowering phenology of South African Oxalis-possible indicator of climate change?
Oxalis is a large geophytic genus that has diversified extensively in the winter rainfall region of the Cape Flora, South Africa. Patterns of flowering within Oxalis were investigated at both a regional scale (focusing on ...
Semenology training programs: 8 years' experience
Objective: To evaluate the immediate effect of hands-on training on the quality of technical skills of laboratory technicians. Design: Retrospective analytical study. Setting: Academic institutions and private infertility ...
Evaluation of minimum residual pressure as design criterion for South African water distribution systems
The South African civil engineering fraternity has grown to accept 24 m as the design criterion for minimum residual pressure in water distribution systems. However, the theoretical peak demand in many systems has increased ...
Concurrency driving the African HIV epidemics: where is the evidence?
[No abstract available]
Make the money work for health in sub-Saharan Africa
[No abstract available]
An unusual case of oromandibular-limb hypogenesis syndrome
The oromandibular-limb hypogenesis syndrome is a rare complex of jaw and limb defects with unclear aetiology. Multiple and variable deformities of the mandible, maxilla and tongue may occur in combination with a variety ...
Diagnostic and management challenges for childhood tuberculosis in the era of HIV
The diagnosis and management of childhood tuberculosis (TB) pose substantial challenges in the era of the human immunodeficiency virus (HIV) epidemic. The highest TB incidences and HIV infection prevalences are recorded ...