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Radiation exposure and heart disease risk
It would be appropriate to incorporate circulatory disease risks while estimating risks to individuals exposed to doses above 0.5 Gy


Engineering bacteria to make anti-cancer drug


Humpback whale beats long-distance record
A humpback whale has broken the world record for travel by any mammal, swimming at least 9,800 kilometres (6,125 miles) from the Atlantic to the Indian Ocean in search of a mate, marine biologists reported in Biology Letters.The female ...

No breast cancer despite family history
A University of Rochester Medical Center study is good news for women who have a close relative with breast cancer and fear that no matter what they do, it won't matter.Having a family history of breast cancer can lead some women to ...

First land plant fossil found in Argentina
A team of Argentine and Belgian scientists has discovered in northwestern Argentina a 472 million-year-old fossil of the first plant to grow on land, said one of the researchers.To date, scientists had believed that the first land plant ...

CO {-2} finding on Mars hints at ancient life
Widespread deposits of carbonate rock are buried a few miles beneath the surface, according to new research.If they are abundant it means the greenhouse gas could have helped make it a much wetter and warmer place hundreds of millions ...

Southern hemisphere undergoes soil drying
The soils in large areas of the Southern Hemisphere, including major portions of Australia, Africa and South America, have been drying up in the past decade, a group of researchers ...

How fish evade enemies by altering movement
Fish alter their movements when under threat from predators to keep closer together and to help them to blend with the crowd, according to a new research headed by scientists at the University of ...

Technique to identify a person by the ear found
A technique called image ray transform can highlight tubular structures such as the helix of the ear and spectacle frames, making it possible to identify a person by his/her ears with a success rate of almost 100 per ...

Kilimanjaro climbers risk acute sickness
Climbers of high peaks such as Mount Kilimanjaro are at high risk for Acute Mountain Sickness (AMS). Trekkers should not ignore AMS warning signs, which can progress to more serious medical ...

Three cities threatened by tsunami due to fault
Geologists studying the Jan. 12 Haiti earthquake say the risk of destructive tsunamis is higher than expected in places such as Kingston, Istanbul, and Los Angeles as they are near a strike-slip fault, a geological ...

Marine Iguana defence mechanism studied
The difference between life and death for the marine iguana depends on its ability to secrete the hormone corticosterone, which controls the body's energy expenditure in an emergency. But it can be lethal if not turned ...
Agriculture

Management of papaya mealybug in mulberry
Papaya mealy bug is an exotic pest recently invading India. Its extensive spread to neighbouring countries is also reported.The pest sucks the sap from tender shoot and leaves resulted with deterioration in leaf quality followed by ...


FARMER'S NOTEBOOK
“Judicious combination of manures, fertilizers ensures food security”
Growing organic foods is a matter of individual or enterprise preference


FARM QUERY
Worms in mango
My Banganapally mango grafts started yielding fruit in three years. However, all were found to be infected by tiny worms. Though I sprayed 50 per cent Micronised Carbaryl the problem persists. Can you kindly suggest a remedy?C. M ...


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