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At that star, turn left!
Our bodies contain proteins that are made of smaller molecules that can be either left- or right-handed, depending upon their structure. Regardless of which hand we use to write, however, all human beings are `left-handed` at the molecular level. Life on Earth uses the left-handed variety and no one knows how this preference crept into living... view more... (2002-10-17)
Cosmic connections: Imperial scientist locates the origin of cosmic dust
The research, published in the journal Geology, shows that some of the cosmic dust falling to Earth comes from an ancient asteroid belt between Jupiter and Mars. This research improves our knowledge of the solar system, and could provide a new and inexpensive method for understanding space. view more (2008-09-03)
X-Effect: Female Chromosome Confirmed a Prime Driver of Speciation
Researchers at the University of Rochester believe they have just confirmed a controversial theory of evolution. The X chromosome is a strikingly powerful force in the origin of new species. view more (2007-10-18)
Short RNAs show a long history
MicroRNAs, the tiny molecules that fine-tune gene expression, were first discovered in 1993. But it turns out they've been around for a billion years. view more (2008-10-02)
Mothers transmit DNA through daughters only
Scientists have argued whether or not the often-studied mitochondrial DNA molecule is clonally inherited. It is with assuming clonal inheritance this type of DNA has been used to track the origin of modern human as well as to draw pictures of genetic relationships among other animals and plants. The conflict has now been solved by two evolutionary... view more... (2001-09-06)
NASA Scientists Find Clues to a Secret of Life
NASA scientists analyzing the dust of meteorites have discovered new clues to a long-standing mystery about how life works on its most basic, molecular level. view more (2009-03-18)
Paul Davies Receives Michael Faraday Award
The physicist Paul Davies, Professor of Natural Philosophy at Macquarie University in Australia, is to be to given the Royal Society's prestigious Michael Faraday Award for 2002. The award - widely acknowledged as one of the most prominent in UK science - is given annually to a scientist who, in the opinion of the Royal Society, has done most to... view more... (2002-07-25)
Early Promise Of New Treatment To Reduce Infection Associated With Chemotherapy (P 275)
Authors of a fast-track study in this week's issue of THE LANCET propose an alternative to antibiotics to treat infection associated with the use of chemotherapy for patients with blood cancer. The toxic effects of chemotherapy cause organisms in the gut to migrate to the bloodstream, frequently resulting in bacterial infection. Michael Ellis and... view more... (2003-01-23)
The cooperative view: New evidence suggests a symbiogenetic origin for the centrosome
There are two ways in which cooperation is the theme of a paper published this week by Mark Alliegro and Mary Anne Alliegro, scientists at the Marine Biological Laboratory's (MBL) Josephine Bay Paul Center. view more (2008-05-07)
'It might be life, Jim...', physicists discover inorganic dust with lifelike qualities
Could extraterrestrial life be made of corkscrew-shaped particles of interstellar dust? Intriguing new evidence of life-like structures that form from inorganic substances in space are revealed today in the New Journal of Physics. view more (2007-08-15)
St. Jude settles century-old debate on origin of mammalian network of lymphatic vessels
Investigators at St. Jude Children's Research Hospital settled a century-old debate on the origin of the mammalian lymphatic vasculature-the network of vessels and capillaries critical to various essential housekeeping functions in the body. The finding holds the promise for the development of new therapies for lymphatic system disorders, the... view more... (2007-10-04)
New study resolves the mysterious origin of Merkel cells
A new study resolves a 130-year-old mystery over the developmental origin of specialized skin cells involved in touch sensation. view more (2009-09-28)
New cell division mechanism discovered
A novel cell division mechanism has been discovered in a microorganism that thrives in hot acid. The finding may also result in insights into key processes in human cells, and in a better understanding of the main evolutionary lineages of life on Earth. view more (2008-10-28)
Q is for quantum and 'Q-life'
As the world celebrates Charles Darwin, who was born 200 years ago, physicists can be forgiven a certain jealousy at the spotlight being placed on his profound legacy. view more (2009-07-08)
Study on origin of mutation that causes Fatal Familiar Insomnia
A PhD thesis at the University of the Basque Country (UPV/EHU) has studied the origin of the mutation that causes Fatal Familiar Insomnia (FFI). In the Autonomous Community of the Basque Country there is a high rate of carriers of this mutation - 50%of all the cases registered in the whole of Spain. view more (2009-01-07)
New '1/f noise' discovery promises to improve semiconductor-based sensors
More sensitive sensors and detectors based on semiconductor electronics could result from new findings by researchers from the United States, Norway and Russia. view more (2007-05-10)
First beam for Large Hadron Collider, world's mightiest particle accelerator
An international collaboration of scientists today sent the first beam of protons zooming at nearly the speed of light around the 17-mile-long underground circular path of the Large Hadron Collider (LHC), the world's most powerful particle accelerator, located at the CERN laboratory near Geneva, Switzerland. view more (2008-09-11)
Practice parameters discuss treatment for narcolepsy, other hypersomnias of central origin
Practice parameters published in the December 1 issue of the journal SLEEP serve as both an update of previous practice parameters for the therapy of narcolepsy and as the first practice parameters to address treatment of other hypersomnias of central origin, including idiopathic hypersomnia, recurrent hypersomnia and hypersomnia due to medical... view more... (2007-12-03)
Cause of mussel poisoning identified
The origin of the neurotoxin azaspiracid has finally been identified after a search for more than a decade. view more (2009-03-25)
Why does species diversity vary so much?
The diversity of life varies predictably with climate and is greatest where it is warm and wet (the humid tropics). But the question "why" has puzzled biologists for over a century. In the December issue of Ecology Letters, Currie and colleagues examine three hypotheses about the origin of climatic gradients of diversity. The... view more... (2005-01-11)
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