A tentative assessment of the changes in transmissibility and fatality risk associated with Beta SARS-CoV-2 variants in South Africa: an ecological study

2021 ◽  
pp. 1-3
Author(s):  
Shi Zhao ◽  
Zhihang Peng ◽  
Maggie H. Wang
Keyword(s):  
South Africa ◽  
Ecological Study ◽  
Fatality Risk

scholarly journals Health risk of inhalation exposure to sub-10 µm particulate matter and gaseous pollutants in an urban-industrial area in South Africa: an ecological study

BMJ Open ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. e013941 ◽  
Author(s):  
Oyewale Mayowa Morakinyo ◽  
Ayo Stephen Adebowale ◽  
Matlou Ingrid Mokgobu ◽  
Murembiwa Stanley Mukhola
Keyword(s):  
South Africa ◽  
Particulate Matter ◽  
Health Risk ◽  
Ecological Study ◽  
Inhalation Exposure ◽  
Industrial Area ◽  
Gaseous Pollutants

scholarly journals Report on some monogenean and clinostomid infestations of freshwater fish and waterbird hosts in Middle Letaba Dam, Limpopo Province, South Africa

2009 ◽  
Vol 76 (2) ◽  
Author(s):  
P.A.S. Olivier ◽  
Wilmien J. Luus-Powell ◽  
J.E. Saayman
Keyword(s):  
South Africa ◽  
Life Cycle ◽  
Fish Community ◽  
Ecological Study ◽  
Limpopo Province ◽  
Survey Protocol ◽  
Distribution Of Fish ◽  
New Distribution ◽  
Parasitological Study

This report deals with the results of a parasitological study done as part of a post-impoundment ecological study of Middle Letaba Dam, Limpopo Province, South Africa. It involved a seasonal survey protocol with particular attention to the diversity and prevalence of the parasitic fauna of the indigenous fish community of the dam and the role of selected fish-eating birds in the life cycle and distribution of fish helminths. The potential species composition of fish of the dam is provided. Monogenean and clinostomatid parasites encountered are listed and infestation statistics of fish and fish-eating bird hosts are presented. The results of this study also provide information on new distribution and host records of the encountered monogeneans.

The changing relationship between bacterial STIs and HIV prevalence in South Africa – an ecological study

2014 ◽  
Vol 26 (8) ◽  
pp. 556-564 ◽  
Author(s):  
Chris Richard Kenyon ◽  
Kara Osbak ◽  
Jozefien Buyze ◽  
R Matthew Chico
Keyword(s):  
South Africa ◽  
Ecological Study ◽  
Hiv Prevalence ◽  
Stis And Hiv

Time and Latitude in South Africa

1972 ◽  
Vol 1 ◽  
pp. 27-38
Author(s):  
J. Hers
Keyword(s):  
South Africa ◽  
Cape Town ◽  
Astronomical Observations ◽  
Royal Observatory ◽  
The Republic ◽  
Astronomical Determination ◽  
Limited Accuracy ◽  
Better Than

In South Africa the modern outlook towards time may be said to have started in 1948. Both the two major observatories, The Royal Observatory in Cape Town and the Union Observatory (now known as the Republic Observatory) in Johannesburg had, of course, been involved in the astronomical determination of time almost from their inception, and the Johannesburg Observatory has been responsible for the official time of South Africa since 1908. However the pendulum clocks then in use could not be relied on to provide an accuracy better than about 1/10 second, which was of the same order as that of the astronomical observations. It is doubtful if much use was made of even this limited accuracy outside the two observatories, and although there may – occasionally have been a demand for more accurate time, it was certainly not voiced.

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