United States Of America (US)

First food: business of taste

Good Food is First Food. It is not junk food. It is the food that connects nature and nutrition with livelihoods. This food is good for our health; it comes from the rich biodiversity of our regions; it provides employment to people. Most importantly, cooking and eating give us pleasure. …
  • 31/12/2028

Wonder wings

A gyroplane (a flying machine balanced and supported by rapidly rotating horizontal or slightly inclined blades) said to be capable of flying non-stop around the world at 800 kmph has been developed in the US. Texas-based Jay Carter says his Cartercopter, fitted with two rotors and a modified racing- car …

Cancer killer

SCIENTISTS have just synthesised possibly the most complex anti-cancer vaccine to treat patients suffering from prostate cancer at a bospitaJ in New York, US. Boost to immunity Sam Danishefsky and his colleagues from the Memorial Sloan Kettering Cancer Centre in New York have made copies of a large active fragment, …

Swinging moods

THE Oxford dictionary defines mood as the 'state of one's feelings or mind at a particular time'. For researchers looking at brain and behaviour, the relationship between change of moods to other physiological changes has always been a challenge, since any clue or significant association between them can help find …

Genetic thieves

David Roos and his colleagues at the University of Pennsylvania in the US, present evidence that parasites responsible for some of the world's most serious diseases, including malaria, stole large chunks of DNA from plants. Called apicoplast, the stolen DNA matter forms a third class of DNA in these single-cciled …

Pure warmth

Now people can have the comfort of a fireplace in their homes without having to worry about air pollution, Superior Fireplace Co of California, US, has designed a natural-gas fireplace which gives natural bright yellow flames of a traditional wood fire, unlike other such units which burn with a blue …

PROTECTION FOR ALL

People in the US can now file a lawsuit seeking less protection for endangered species. The Supreme Court of the US recently ruled that people who have suffered economic harm could use the Endangered Species Act to file lawsuits accusing the federal government of having gone overboard to protect some …

An ocean of life

LOOKING, at the images clicked by spacecraft Galileo's closest flyby of Europa on February 20, 1997, scientists say they are confident that the Jovian moon has a thin ice crust covering either liquid water or slush. The tantalising new images put forward the possibility that the slushy concoction of chemicals …

Makes more sense

FivF. years ago, nobody had heard of :ntisense' technology. Now there are biotechnology companies based on it, and antisense drugs are in clinical trials. To understand antisense technology, consider the double helix structure of DNA that has two inter-locking strands that make up genes, Usually, only one of them makes …

Flab control

with over 100 million people worldwide, who are officially certified by doctors as obese (body mass index of over 30), management of body weight is as much a nightmare for physicians as it is a challenge for medical scientists. The phenomenal ability of the human body to store fat, an …

Quantum answer

the biggest hindrance in quantum computing - the possibility that it would be irreparably error prone - will soon be overcome, claims Raymond Laflamme of the Los Alamos National Laboratory in New Mexico, us . In a quantum computer, data would be encoded as quantum states, like a spin of …

Danger sensors

Electrical utility transformers that use oil as an insulating barrier between the high and low voltage wire windings often fail because moisture and explosive gases build up in the oil, forming a pathway for a sudden, dangerous electric arc between the windings. Larson-Davis Inc of Provo, Utah, us , have …

Going far

Researchers at Northeastern University of Boston, Massachusetts, us , have developed cartridges made of graphite nanofibres, which, they claim, can store 10 times more compressed hydrogen at room temperature than conventional tanks. They claim that these cartridges will enable hydrogen-powered cars to travel upto 8,000 km. The nanofibres, which are …

Undersea explorer

rover spends a lot of time exploring, digging and sniffing mud, but always returns home when its owner gives a whistle. But don't mistake it for a dog. Rover is an underwater tractor, a small treaded tank designed to spend months wandering in the murky ocean depths, searching the ocean …

Celestial guest

astronomists across the world are agog over the comet Hale-Bopp, as during its current run over the Earth, it is spewing tonnes of organic chemicals which could have been the building blocks of life. It is after nearly 4,000 years that Hale-Bopp, a 40-km-wide cosmic snowball of ice and dust, …

Airborne enemies

another addition to the list of products harmful to the ozone layer is the Concorde, the supersonic aircraft. Research shows that the trail of invisible fog of sulphuric acid left by a Concorde may be depleting the ozone layer far faster than climatologists had expected. David Fahey of the us …

Daylight destruction

daylight is not all dewdrops and honey. It also contributes to the destruction of the ozone layer in the stratosphere, say Patrick Aimedieu of France's National Space Research Centre and Bob Sheldon of the University of Houston, us, who base their claims on studies using balloons above southern France ( …

Paints that prey

during the last 10 years, largescale mortalities of bottlenose dolphins ( Tursiops truncatus ) have been reported along the Atlantic coast of the us . For the first time, large amounts of tributyltin ( tbt ) - organotin compounds used as an anti-fouling agent in paints (for painting ships and …

Phoenix phenomenon

under unfavourable - oxygen-deprived - conditions, brine shrimps shut down their energy processes and enter a death-like state; but when favourable conditions are restored, perhaps years later, these animals rise up, hatch and swim away, says James Clegg, a biochemist at the University of California's Bodega Marine Laboratory in Bodega …

Digging disaster

the us administration recently slapped a lawsuit on mining companies operating in the Silver Valley of Idaho for causing pollution. Over several decades, lead, zinc and other toxic metals have been leaching out of the tailing pipes that line the valley and the south fork of the Coeur d:lene river. …

Infectious speed

It may now be possible to tell how quickly an HIV infected person is likely to progress to AIDS. Homayoon Farzadegan and colleagues at the Johns Hopkins University, Baltimore, US, compared the rate of progression of HIV infection in two groups of homosexuals

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