Washington, April 4 : A new study has suggested that a brilliant burst of gamma rays may have caused a mass extinction event on Earth 440 million years ago, and a similar celestial catastrophe could happen again in the future.
Most gamma-ray bursts are thought to be streams of high-energy radiation produced when the core of a very massive star collapses.
Washington, April 4 : Brown University scientists have found that nicotine is not only addictive, but it also has the ability to interfere with several cellular interactions in the body.
The researchers say that their findings may be helpful in developing better treatments for various diseases, considering that pharmaceutical companies rely on basic research to identify new cellular interactions that can serve as targets for potential new drugs.
Washington, April 4 : A new research by scientists at Yale University, US, has discovered that the bright colors seen in bird feathers are created by tiny nanostructures with a structure similar to beer foam or a sponge.
Most colors in nature are produced by pigments. But, the bright blue feathers found in many birds, such as Bluebirds and Blue Jays, are instead produced by nanostructures.
Under an electron microscope, these structures look like sponges with air bubbles.
Washington, April 4 : Scientists have found that the children of centenarians generally possess certain personality traits that are associated with healthy ageing and longevity.
Researchers from Boston University School of Medicine''s (BUSM) New England Centenarian Study used questionnaires to obtain measures of the personality traits for neuroticism, extraversion, openness, agreeableness, and conscientiousness were obtained from
Berlin - The Wilkins Ice Shelf, a monster iceberg more than 100 kilometres across, is about to separate from the Antarctic continent and float free, possibly as a result of global warming, two German scientists said Friday.
Rifts have developed in the narrow "ice bridge," which is the last link between the shelf and the Antarctic Peninsula, reported the European Space Agency (ESA), quoting scientists Angelika Humbert and Matthias Braun, who have been observing the ice using satellite photos.
London, April 3: In a new DNA analysis, Scots living on Islay, Lewis, Harris and Skye were found to have strong links with Irish people, thus providing evidence of an ancient invasion of Scotland from Ireland.
According to a report by BBC News, the research, which features work by geneticist Dr Jim Wilson, a specialist in population genetics, was the first demonstration of a significant Irish genetics component in Scots' ancestry.
The study also suggests intriguing ancestry of Scots living on the Western Isles and in the north and north east of Scotland.
Washington, April 4 : A new study has suggested that a brilliant burst of gamma rays may have caused a mass extinction event on Earth 440 million years ago, and a similar celestial catastrophe could happen again in the future.
Washington, April 4 : Brown University scientists have found that nicotine is not only addictive, but it also has the ability to interfere with several cellular interactions in the body.
Washington, April 4 : A new research by scientists at Yale University, US, has discovered that the bright colors seen in bird feathers are created by tiny nanostructures with a structure similar to beer foam or a sponge.
Washington, April 4 : Scientists have found that the children of centenarians generally possess certain personality traits that are associated with healthy ageing and longevity.
Berlin - The Wilkins Ice Shelf, a monster iceberg more than 100 kilometres across, is about to separate from the Antarctic continent and float free, possibly as a result of global warming, two German scientists said Friday.
London, April 3: In a new DNA analysis, Scots living on Islay, Lewis, Harris and Skye were found to have strong links with Irish people, thus providing evidence of an ancient invasion of Scotland from Ireland.
