Molecular evidence provides strong evidence that speciation rates slow down through time. New species seem to appear less and less as the number of species in a region approaches the maximum number that it can support.
As growing demand for clean water stretches even the resources of the world's largest industrialized nations, scientists and engineers are turning to new technology and novel ideas to find solutions.
Stem cell researchers used a high resolution technique to examine the genome, or total DNA content, of a pair of human embryonic stem cell lines and found that while both lines could form neurons, the lines had differences in the numbers of certain genes that could control such things as individual traits and disease susceptibility.
New research holds promise for thousands who suffer from REM Sleep Behavior Disorder. RDB, a neurological disorder that causes violent twitches and muscle contractions during rapid eye-movement (REM) sleep, can lead to serious injuries.
A new method of filming blood-vessel cells that move in accordance with targeted signals has been developed. The method can also be used to study how migration of cancer cells and nerves can be controlled. Formation of new blood cells and lymph vessels takes place with a number of different diseases.
Mayo data showed that 82 percent of NFL players under age 50 had abnormal narrowing and blockages in arteries, compared to the general population of the same age. This finding suggests that the former athletes face increased risk of experiencing high blood pressure, heart attack or stroke.
Researchers have a new strategy for designing the next generation of synthetic vaccines that could lead to more effective treatments for fighting malaria, tuberculosis, AIDS and other infectious diseases. These conditions kill more than 17 million people around the world each year.
Researchers have made a case study of a green community. The report "Green Schemes: Sustainable Urbanism in Garfield Park" presents 80 concepts such as filtration gardens, narrowed roadways, and an elevated bikeway adjacent to the Green Line tracks. Graduate students and faculty in urban planning, architecture and landscape architecture conceived the schemes.
Neurons spoke to Dr. Joe Z. Tsien when he was a sophomore college student searching for some meaningful extracurricular activity. He had stopped by the lab of a brain researcher at Shanghai's East China Normal University. The room was dark except for a light shining on the brain. "You could hear this pop, pop, pop, pop," says Dr. Tsien, brain scientist who recently came to the Medical College of Georgia from Boston University. "At that moment, I got interested in the brain."
Long known for its role in preventing anemia in expectant mothers and spinal birth defects in newborns, the B vitamin folate, found in leafy green vegetables, beans and nuts has now been shown to blunt the damaging effects of heart attack when given in short-term, high doses to test animals.
An "ethereal" 10 second clip of a French folk song has been played for the first time in 150 years. Source: BBC News | Science/Nature | UK Edition | 28 Mar 2008 | 10:21 am
HONG KONG (Reuters) - People who carry a mutant gene can develop potentially fatal meningitis if they get infected with the drug resistant Beijing strain of tuberculosis, a study in Vietnam has found.
OSLO (Reuters) - John Griggs Thompson of the United States and Jacques Tits of France were awarded a $1.2 million Norwegian mathematics prize on Thursday for their work in algebra and group theory.
CANBERRA (Reuters) - A cattle farmer in Australia's remote northern outback on Friday said he had found a giant ball of twisted metal, which he believes is space junk from a rocket used to launch communications satellites.
LOS ANGELES (Reuters) - The moon could become a final resting place for some of mankind thanks to a commercial service that hopes to send human ashes to the lunar surface on robotic landers, the company said on Thursday.
WASHINGTON (Reuters) - U.S. audio historians have discovered and played back a French inventor's historic 1860 recording of a folk song -- the oldest-known audio recording -- made 17 years before Thomas Edison invented the phonograph.
WASHINGTON (Reuters) - The devastating mental illness schizophrenia may be caused by many different mutations in many different genes that disrupt biological pathways vital to normal brain development, scientists said on Thursday.
Gordon Brown announces plans to strengthen Britain's ties with France at a summit with Nicolas Sarkozy. Source: BBC News | Science/Nature | UK Edition | 27 Mar 2008 | 8:01 pm
Normally fragile and brittle silicon microchips are made to bend and fold by scientists in the US. Source: BBC News | Science/Nature | UK Edition | 27 Mar 2008 | 6:01 pm
Scientists have detected the faint genetic traces left by medieval crusaders in the Middle East. Source: BBC News | Science/Nature | UK Edition | 27 Mar 2008 | 5:36 pm
CAPE CANAVERAL, Florida (Reuters) - The space shuttle Endeavour returned to Earth on Wednesday, capping a milestone flight that brought Japan fully into the International Space Station partnership with the delivery of the first part of its research laboratory.
Plastic waste in the oceans may pose a devastating long-term toxic threat to the food chain. Source: BBC News | Science/Nature | UK Edition | 27 Mar 2008 | 11:57 am
