DURHAM, N.C. -- A team of researchers from Duke University and the Salk Institute for Biological Studies has found a central part in the machinery that turns plants green when they sense light.
In the Rube Goldberg world of cellular mechanics, this key player turns out to be a garbage truck.
Light is so essential for plants that they have two different systems to take advantage of it, explains Meng Chen, an assistant professor of biology at Duke.
College Park, MD (June 29, 2010) -- Old glass is not the same as new glass -- and the difference is not just due to manufacturing techniques. Unlike crystalline solids, glasses change as they age, increasing packing density and stability. Ideally, a glass should be cooled slowly, maybe over 10,000 years or so, but that is not usually practical.
The first experimental evidence showing how atmospheric nitrogen can be incorporated into organic macromolecules is being reported by a University of Arizona team.
The finding indicates what organic molecules might be found on Titan, the moon of Saturn that scientists think is a model for the chemistry of pre-life Earth.
Researchers have been trying to determine the best strategy for women who can potentially benefit from repeat mammography screening. A recent meta-analysis shows that there is no one single intervention that is best, according to a study published online June 29 in The Journal of the National Cancer Institute.
Smoking, an established risk factor for colon cancer, may induce specific epigenetic changes and gene mutations that may be involved in the development of colon cancer, according to an online study published June 29 in the Journal of The National Cancer Institute.
BLOOMINGTON, Ind. -- The deaths of nearby relatives has a curious effect on the bacterium Caulobacter crescentus -- surviving cells lose their stickiness.
In an analysis from the Action to Control Cardiovascular Risk in Diabetes (ACCORD) trial, one of the largest studies of its kind to determine whether intensive blood glucose (sugar) control worked better than standard blood sugar control among diabetics, results show that the benefits of intensive therapy need to be balanced against the increase in total and cardiovascular disease-related death, increased weight gain, and high risk for severe low blood sugar.
PHILADELPHIA — Even with health insurance, low-income women had lower rates of mammography screening than middle-class women, but a counseling program increased the likelihood of screening.
COLUMBUS, Ohio – Researchers at the Ohio State University Comprehensive Cancer Center-Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC-James) have discovered how a substance that is produced when eating broccoli and Brussels sprouts can block the proliferation of cancer cells.
Compelling evidence indicates that the substance, indole-3-carbinol (I3C), may have anticancer effects and other health benefits, the researchers say. These findings show how I3C affects cancer cells and normal cells.
A new study shows the Arctic climate system may be more sensitive to greenhouse warming than previously thought, and that current levels of Earth's atmospheric carbon dioxide may be high enough to bring about significant, irreversible shifts in Arctic ecosystems.
Cell reprogramming calls The Curious Case of Benjamin Button to mind.
In high-risk adults with type 2 diabetes, researchers have found that two therapies may slow the progression of diabetic retinopathy, an eye disease that is the leading cause of vision loss in working-age Americans.
Adding a continuous blood sugar level sensor to an insulin pump helps patients with type 1 diabetes achieve better blood sugar control compared to the common standard of care, multiple daily insulin injections, concludes a study published on-line today in the New England Journal of Medicine.
The paper is entitled, Effectiveness of Sensor-Augmented Insulin-Pump therapy in Type 1 Diabetes.
Some low-income mothers are more likely than others to introduce their infants to cow's milk too soon. In doing so, they may put their children at risk of health complications, according to a study by researchers at Penn State and the Institute for Children and Poverty, New York.
Researchers from the University of Granada have shown that a person's dental patterns can be used as proof of their identity with the same degree of reliability as DNA testing, the method that forensic police use to reveal the identity of dead bodies. The researchers came to their conclusion after analyzing the dental patterns of more than 3,000 people.