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Unravelling mysteries of ancient human migrations
Where did humans originate and how did they populate the entire globe? Scientists may finally be able to answer these fundamental questions when they have enough DNA samples from people all over the world.The Genographic ...

What limits insect size
Tracheal tubes —which deliver oxygen to insects’ cells — are the key to understanding why giant insects of the late Paleozoic era became extinct. In the late Paleozoic era, with atmospheric oxygen levels reaching record highs, ...

DNA-based vaccine for multiple sclerosis

Speaking Of Science

Adopt Bangladesh Standard Time, save energy
The move will reduce street crime, the use of floodlights and increase professional productivity


Agriculture


FARMER'S NOTEBOOK
Eco-friendly method of setting up vermicompost unit
It is an ideal way of generating double income to farmers

Bio diesel holds promise
Jatropha curcas is preferred mostly as non edible oil seed for the production of biodiesel. The preference is due to the easy multiplication by seeds, cuttings and seedlings and also due to 30 to 35 per cent of non-edible oil content in the ...

Farm Queries
Is there any method to remove the dense growth of green algae in a small pond behind my house? R. Srinivasan NagapattinamAbsence of fish in the pond increases algae growth. You may release fresh water ...


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