Search
Now showing items 31-40 of 287
A redescription of Polystoma africanum Szidat, 1932 (Monogenea: Polystomatidae)
(Magnolia Press, 2009)
Polystoma africanum was originally described from a single specimen recovered from the common African toad,
Amietophrynus regularis. The parasite has also been reported from the Angola river frog, Amietia angolensis, ...
Diversity and seasonal abundance of sorghum panicle-feeding Hemiptera in South Africa
(Elsevier Science Limited, 2008)
Short-period variability in the Class II methanol maser source G12.89+0.49 (IRAS 18089-1732)
(Oxford Univ Press, 2009)
Time series are presented for the Class II methanol maser source G12.89+0.49, which has been monitored for nine years at the Hartebeesthoek Radio Astronomy Observatory. The 12.2 and 6.7 GHz methanol masers were seen to ...
An empirical assessment of factors impeding effective password management
(Taylor & Francis, 2009)
Since passwords are one of the main mechanisms used to protect data and information, it is important to ensure that passwords are managed correctly and that those factors which will have a significant impact on password ...
Effects of prolonged restriction in water supply on photosynthesis, shoot development and storage root yield in sweet potato
(Blackwell Publishing Limited, 2008)
A sense of place and spatial planning in the Vredefort Dome, South Africa
(The Society of South African Geographers and Routledge, 2008)
Detection of gamma rays from a starburst galaxy
(AAAS, 2009)
Starburst galaxies exhibit in their central regions a highly increased rate of supernovae, the remnants of which are thought to accelerate energetic cosmic rays up to energies of ~1015 electron volts. We report the detection ...
HESS upper limit on the very high energy gammay-ray emission from the globular cluster 47 Tucanae (Research Note)
(EDP sciences, 2009)
Observations of the globular cluster 47 Tucanae (NGC 104), which contains at least 23 ms pulsars, were performed with the HESS telescope
system. The observations lead to an upper limit of F(E > 800 GeV) < 6.7 × 10−13 cm−2 ...
The influence of health education on the prevalence, intensity and morbidity of Schistosoma haematobium infections in children over a two-year period in the Limpopo Province, South Africa
(Medpharm Publications, 2009)
The influence of health education on the prevalence and intensity of Schistosoma haematobium infections, as well as on the related morbidity, was studied in schoolchildren between the ages of 4 and 14. Three groups of ...