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Antifreeze proteins can stop ice melt
Washington, March 4 : A new study has found that the same antifreeze proteins that keep organisms from freezing in cold environments also can prevent ice from melting at warmer temperatures.
Researchers at the Ohio University and Queen’’s University carried out the study.
Antifreeze proteins are found in insects, fish, bacteria and other organisms that need to [...]
Ancient ‘space blast’ over Antarctica similar to Tunguska event of 1908
4. March 2010
A new research has suggested that a large space rock may have exploded over Antarctica thousands of years ago, showering a large area with debris, similar to the Tunguska event of 1908.
According to a report in BBC News, the evidence comes from accumulations of tiny meteoritic particles and a layer of extraterrestrial dust found in [...]
Measuring pain from the outside may soon be a reality
4. March 2010
Scientists are working on developing a technique that may help them measure pain from the outside.
Tara Renton of King’’s College London has come up with an alternative way of analysing functional MRI scans called arterial spin labelling (ASL) to measure how much oxygenated blood is flowing through particular areas.
Renton and her team scanned the brains [...]
Black holes may play important role in evolution of galaxie
4. March 2010
New observations from NASA’s Chandra X-ray Observatory indicate that “average” supermassive black holes may play an important role in the evolution of the galaxies in which they reside, as powerful winds blowing away from the vicinity of such a black hole may shape galaxies.
For years, astronomers have known that a supermassive black hole grows in [...]
China to launch second lunar probe in October
4. March 2010
Reports indicate that China plans to launch the Chang’e-2, the country’s second lunar probe, in October this year.
“The satellite would be launched on a Long March 3-C carrier rocket,” said Liang Xiaohong, Party chief of the China Academy of Launch Vehicle Technology, and a member of the National Committee of the Chinese People’s Political Consultative [...]
A total of 160 species live inside our guts
4. March 2010
London, Mar 4 : In what could be called as a big feat in microbial research, researchers have decoded all the bacterial genes found in the human gut-a total of 160 species.
The discovery has far-reaching implications for human health and well being, and could even be used to predict chronic intestinal illnesses, from ulcers to [...]
Scientists discover first female sex hormone in a plant
27. February 2010
Scientists have reported the first discovery of the female sex hormone progesterone in a plant.
Until now, scientists thought that only animals could make progesterone.
A steroid hormone, secreted by the ovaries, progesterone prepares the uterus for pregnancy and maintains pregnancy.
A synthetic version, progestin, is used in birth control pills and other medications.
“The significance of the unequivocal [...]
Larger and more frequent fires could aid ecosystems
27. February 2010
Scientists have said that there’s a good chance that forest fires in the Pacific Northwest will become larger and more frequent, which could actually aid ecosystems.
The future of fire in this region is difficult to predict, will always be variable, and undoubtedly a part of the future landscape.
People should understand, however, that fire is not [...]
Scientists find new clues as to why animals grow bigger in the cold
27. February 2010
Scientists have across new clues that offers new insight to Bergmann’s rule that animals grow larger at high, cold latitudes than their counterparts closer to the equator.
The scientists, who found the solution to this 163-year-old puzzle, were from the University of Houston, US.
While traditional explanations have been based on body temperature being the driving force [...]
Living in the trees may be the secret to longevity
27. February 2010
In a new research, scientists have determined that living in the trees may be the secret to longevity, at least in the evolutionary long run.
Evolutionary biologists have long predicted that natural selection should favour extending the lifespan of animals that live relatively safe lifestyles.
In fact, birds and bats, whose ability to fly helps them escape [...]
More tropical cyclones in ancient past could play role in Earth’s warmer future
27. February 2010
A team of climate scientists has determined that more frequent tropical cyclones in Earth’s ancient past have contributed to persistent El Nino-like conditions, which could have implications for the planet’s future as global temperatures continue to rise due to climate change.
The team used both cyclone and climate models to study the frequency and distribution of [...]
‘Monster croc’ feasted on humans 2 million years ago
27. February 2010
Scientists have identified the remains of a 7.5-metre man-eating crocodile in 1.8-million-year-old sediments in Olduvai gorge in Tanzania, an animal that would have been the largest predator ancient humans in the region encountered.
“I can’t guarantee these crocodiles were killing our ancestors, but they were certainly biting them,” Chris Brochu, a vertebrate palaeontologist at the University [...]
World’s temperature record to be re-analyzed
27. February 2010
Reports indicate that the whole of the world’s instrumental temperature record is to be re-analyzed in an attempt to remove doubts about the reality of global warming.
According to a report in The Independent, the new analysis, which would take into account millions of observations dating back more than 150 years, will be carried out by [...]
Scientists discover genetic link between misery and death
27. February 2010
UCLA researchers have found the genetic link between misery and death.
The new study has also discovered a specific genetic variation in some people that apparently disconnects that link, rendering them more biologically tough to face adversity.
Steven Cole, a member of the UCLA Cousins Center for Psychoneuroimmunology and an associate professor of medicine in the division [...]
Hottest known exoplanet slowly being “eaten” by its parent star
27. February 2010
Astronomers have reported that one of the hottest known planets outside our solar system is slowly being “eaten” by its parent star.
First described in 2008, the exoplanet-WASP-12b is a Jupiter-like world that orbits its host star so tightly a year lasts just 26 hours.
This closeness means that a combination of heat from the star and [...]
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4. March 2010
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