Writing in the journal Nature, Howard Hughes Medical Institute investigator Sean B. Carroll and former UW-Madison graduate student Chris Todd Hittinger document how, over many generations, a single yeast gene divides in two and parses its responsibilities to be a more efficient denizen of its environment. The work illustrates, at the most basic level, the driving force of evolution.
A stem cells' immediate neighborhood, a specialized environment also known as the stem cell niche, provides crucial support needed for stem cell maintenance. But nothing lasts forever, found scientists at the Salk Institute for Biological Studies. During the aging process, the level of support drops off, diminishing the stem cells' ability to replenish themselves (self-renew) indefinitely.
Catherine T. ("Katie") Hunt, Ph.D., president of the American Chemical Society, the world's largest scientific society, comments on today's award of the Nobel Prize in Chemistry to Gerhard Ertl. Surface science, the topic of the prize, was fundamental to Hunt's initial scientific research.
A few came. They ran. They left. As a result of their August visit the U.S. Marine Corp begins training in 2008 in new running suits chosen after tests of competing products in the University of Oregon's environmental chamber.
Researchers at Rensselaer Polytechnic Institute have won a competitive $1.2 million grant from the U.S. Department of Transportation to identify the perfect combination of technology and financial incentives that could help alleviate daytime traffic congestion and boost economic growth in New York City.
Researchers at the University of Virginia have led a multisite clinical trial showing that the drug topiramate is significantly more efficacious than placebo at curbing alcohol dependence. Subjects had to be drinking heavily and were not abstinent when they started the trial.
The Pluto-bound New Horizons spacecraft provided a bird's-eye view of a dynamic Jupiter system that has changed since NASA spacecraft last looked at the giant planet.
Johns Hopkins scientists have developed a potentially novel way to fight colorectal cancer using tiny molecules to deliver potent barrages of radiation inside cancer cells, unlike current treatments that bind to the surface of cells and attack from the outside and cause unwanted side effects.
A new tool lets people with limited mobility control a computer cursor without lifting a finger. Early tests suggest that an experienced user of Vocal Joystick would have as much control as someone using a handheld device.
When it's time for moose to give birth in the Greater Yellowstone Ecosystem, they head to where it is safest from predators "“ namely closer to people, according to a new study by the Wildlife Conservation Society.
The U.S. Department of Energy's Argonne National Laboratory is working closely with Chinese scientists and policy makers toward the goal of creating a cleaner Beijing and developing sustainable technologies for the 2008 Olympic Games and beyond.
Two UT Southwestern Medical Center researchers "“ a distinguished developmental biologist and a leading neuroscientist "“ have been elected to the Institute of Medicine, a component of the prestigious National Academy of Sciences.
A team of researchers from China and the University of Oregon have developed an approach for neuroscientists to study how meditation might provide improvements in a person's attention and response to stress.
A team of researchers from China and the University of Oregon have developed an approach for neuroscientists to study how meditation might provide improvements in a person's attention and response to stress.
A study by an Indiana University environmental science professor and several colleagues suggests a widely planted variety of genetically engineered corn has the potential to harm aquatic ecosystems. The study is being published online this week by the journal Proceedings of the National Academies of Sciences.
David Grimes, MD, of Family Health International (FHI), which works to improve public health in developing countries, has been inducted into the National Academy of Sciences' Institute of Medicine. He has been a leader in developing the field of evidence-based medicine.
Geocachers around the globe are invited to fire up their GPS units on Sunday, 14 October, and celebrate the beginning of Earth Science Week. Instead of searching for buried trinkets at ordinary geocache sites, however, GPS enthusiasts are encouraged to set their coordinates for EarthCaches and discover Earth's natural treasures.
Summer nights in Ohio aren't cooling off as much as they used to -- and it's likely a sign of climatic warming across the state, researchers say. A study found that average summer nighttime low temperatures in Ohio have risen by about 1.7 degrees Celsius (about 3 degrees Fahrenheit) since the 1960s.
The intrepid never-say-die space telescope known as FUSE has finally reached its mission's end and will be turned off after more than eight years of discoveries on everything from planets and nearby stars to galaxies and quasars billions of light-years away.
Five University of Washington undergraduates combing images from the Sloan Digital Sky Survey have discovered more than 1,300 asteroids that had never been observed previously.
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