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Hopes of AIDS vaccine breakthrough dashed
The vaccine did not protect those at high risk of HIV infection, such as sex workers and intravenous drug users

Unlikely to be a public health control measure
The results of the Phase III AIDS vaccine trial using a prime-boost (ALVAC and AIDSVAX) vaccine undertaken in Thailand, published in the New England Journal of Medicine (NEJM), show that the vaccine is able to produce 31.2 per cent ...

How safe is Madras Atomic Power Station?
Background radiation level at any place depends mainly on terrestrial radiation from natural radionuclides such as uranium, thorium and their decay products and potassium-40 present in soil and on cosmic rays (radiation from outer space). ...

Indian scientist disproved U.S. data on methane emission
India’s leading agro-scientist A.P. Mitra had disproved the US government data on emission of methane gas from wet paddy cultivation in the country, Union Minister for Environment and Forests Jairam Ramesh revealed.“The US ...

32 new planets discovered
European astronomers have found 32 new planets outside the solar system, adding evidence to the theory that the universe has many places where life could develop. Scientists using the European Southern Observatory telescope did not find ...


SNAPSHOTS
This year’s rice crops hit by climate change
Once-in-a-lifetime floods in the Philippines, India’s delayed monsoon, and drought in Australia are taking their toll on this year’s rice crops, due to the vulnerability of rice to extreme ...

Dinosaurs’ extinction tied to impact off India
A submerged depression west of India that is mined for its oil could be the largest, multi-ringed impact crater in the world. A new study says the impact that caused it may have killed the dinosaurs off 65 million years ...

Precious minerals have their origins in space
The extreme heat at which the Earth’s core formed 4 billion years ago must have stripped precious metals from the crust and deposited them in the core. What we mine from the rocks must have come from outer space: a ...

Tree leaves are tools to monitor air quality
Tree leaves may be powerful tools for monitoring air quality and planning biking routes and walking paths. Tiny particles of pollution such as iron oxides from diesel exhaust float through the air and stick or grow right into ...

Exercise aids memory after brain radiation
Exercise improves memory after whole-brain radiation treatments in rodents. It was found that exercise after radiation prevented a decline in erasable memory in mice — analogous to humans who are treated for brain tumours. ...

Project to protect all endangered plants
A lab technician prepares to place seed ‘Musa Itinerans’ into cool storage. Botanists at Britain’s Kew Gardens have collected seeds from 10 per cent of the world’s wild plants, in a project to protect all endangered ...
Agriculture


FARMER'S NOTEBOOK
Benefits from poultry manure — no chicken feed
About 3.56 million hectares of land can be fertilized annually

A trap for Indian food grain warehouses
Monitoring insects in food grain stores (warehouses) with traps has, for the most part, been restricted to qualitative assessments or an early warning of the insects present. Most of the common monitoring techniques include spear sampling, ...


FARM QUERIES
Inducing resistance to seeds
Is there any method to induce resistance from disease and infestations to paddy seeds before sowing? C. Srinivasa Reddy Nellore, Andhra PradeshDilute one litres of cow’s urine in about five litres of ...


FARM QUERIES
Storing garlic bulbs
Store the garlic bulbs along with ragi. It has been observed that when ragi and garlic are kept together garlic does not get spoilt ...


Question Corner


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