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Written by Thomas Hesselberg
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Tuesday, 13 November 2007 |
Intuitively, we certainly would not expect rainfall to have any positive influence on the number of malaria cases, on the contrary. Malaria, one of the world’s most damaging diseases with more than 300 million cases per year and more than a million deaths, is transmitted by mosquitoes in the genus Anopheles. Since the mosquito larvae live in small ponds, it would be expected that the more rain the more water-filled ponds and crevices, the more mosquitoes and malaria. However, findings reported by the scientists from the Unversity of Wageningen in the Netherlands and Kenya Medical Research Institute suggest that increased rainfall will have a negative effect on mosquito larval populations and thus potentially on Malaria.
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Written by Thomas Hesselberg
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Wednesday, 31 October 2007 |
In the past decades, researchers have been working hard on solving the problem of how individual cells in a multicellular organism organise themselves in structures such as hearts, brains, lungs etc during ontogeny. Although far from fully understood, a picture is slowly emerging of a complex set of control interactions between the genetic commands of the DNA within the cell and protein and RNA information within and among the cells. However, intriguingly it has been known for some time that simple prokaryotic bacteria are capable of self-organising and cooperating into superstructures to form biofilm and those involved in infectious diseases. Scientists from America and Sweden have now investigated this process in detail.
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Written by Dr. H. P. Bustami
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Sunday, 16 September 2007 |
 Climate change effects on plant growth. Within the rings the carbon dioxide content was 550 ppm (Courtesy of Institute of agricultural sciences, Braunschweig, Germany)
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Written by Dr. H. P. Bustami
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Friday, 06 July 2007 |
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That mankind is a threat to other species survival and the ecosystems on earth has been known since a long time. Now scientists from the austrian university of Klagenfurth, at the Institute of social ecology, published in the recent Volume of PNAS a method to calculate all factors which cause the use of primary biomass production worldwide.
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