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Tracing human lineage through ancient DNA
Between one per cent and four per cent of the nuclear DNA of modern humans outside Africa came from Neanderthals


Effects of sea level rise on Tamil Nadu coast
Tamil Nadu has a coastline that is 1,076 km long, and most of the vital installations and infrastructure, are located along the coast, not to mention the mangroves. While the quantum of sea level rise is being debated, the fact that sea level ...

Pioneering stem cell trial
Doctors in Scotland working with British biotech company ReNeuron have treated the first patient in a pioneering clinical trial to test whether stem cell therapy can help patients disabled by stroke.The trial is the first in the world ...


SNAPSHOTS
Cold water coral reef found off Mauritania
A scientist reports from on board the Maria S. Merian research ship that a cold water coral reef with live fauna has been discovered off the Mauritanian coast. A giant oyster was also found in the ...

Culturing embryonic stem cells now easier
Culturing the finicky, shape-shifting embryonic stem cells is more art than exact science.Now, a fully defined system promising a more uniform and, for cells destined for therapy, safer product, has been ...

Mapping the extent and volume of snow cover
The European Space Agency´s (ESA) GlobSnow project, can map the extent and volume of snow cover especially on the northern hemisphere. The service provides almost real-time data on snow cover and snow ...

Theoretical model of Sun's plasma clouds
Now, using the data from STEREO, a twin satellite system, U.S. scientists have demonstrated for the first time that the motion of the sun's erupting plasma clouds driven by magnetic forces can be explained by a theoretical ...

Invasive species threat to Mediterranean fish
Invasive species, along with over-exploitation of water resources, are the most important pressures to fish in the Mediterranean Basin and are those that expose the fish to the greatest risk of ...

Primates' spinal cord study for new therapies
A study shows unexpected and extensive natural recovery after spinal cord injury in primates. The findings may one day lead to the development of new treatments for patients with spinal cord ...
Speaking Of Science

Trees: the sacred, the spiritual and the secular
It was in March this year that the venerable 800-year-old ginkgo tree of the Kamakura shrine in Japan fell to a snowstorm. Priests and shrine maidens poured consecrated ‘sake' wine on it, added salt and performed purification rites on ...


Agriculture


FARMER'S NOTEBOOK
Tackling major environmental problems caused by human activities
Lokkere is a tiny hamlet bordering the Bandipur tiger reserve forest

Training programme on grassy weed managment
More production, need of the hour


FARM QUERY
Preservation of sweet potato
Farmers in the dryland areas of Tamil Nadu process the tubers of sweet potato by two methods for longer preservation.i)They boil the tubers in water and cut it into small pieces and dry them under sun for 3-4 days. As a result the ...


Question Corner


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