Daily News chosen by Anchor Science
Updated: 03-February-2012, 11:13
Announced on 01-31-2012 :
DOI: 10.1021/ac203022x
DOI: 10.1021/ac203009s
DOI: 10.1021/ac202648w
Good news about carbon storage in tropical vegetation
Tropical vegetation contains 21 percent more carbon than previously thought. Using a combination of remote sensing and field data, scientists were able to produce the first "wall-to-wall" map (with a spatial resolution of 500 m x 500 m) of carbon storage of forests, shrublands, and savannas in the tropics of Africa, Asia, and South America.
How bacteria behind serious childhood disease evolve to evade vaccines
Genetics has provided surprising insights into why vaccines used in both the UK and US to combat serious childhood infections can eventually fail. The study, which investigates how bacteria change their disguise to evade the vaccines, has implications for how future vaccines can be made more effective.
Alcohol and your heart: Friend or foe?
A meta-analysis of the relationship between alcohol consumption and heart disease provides new insight into the long-held belief that drinking a glass of red wine a day can help protect against heart disease.
Genetic breakthrough for brain cancer in children
Scientists have made a major genetic breakthrough that could change the way pediatric cancers are treated in the future. The researchers identified two genetic mutations responsible for up to 40 per cent of glioblastomas in children. The mutations were found to be involved in DNA regulation, which could explain the resistance to traditional treatments, and may have significant implications on the treatment of other cancers.
Sun unleashes an X1.8 class flare on Jan. 27, 2012
The sun unleashed an X1.8 class flare that began at 1:12 PM ET on January 27, 2012 and peaked at 1:37. The flare immediately caused a strong radio blackout at low-latitudes, which was rated an R3 on NOAA's scale from R1-5. The blackout soon subsided to a minor R1 storm. Models from NASA's Goddard Space Weather Center predict that the CME is traveling at over 1500 miles per second. It does not initially appear to be Earth-directed, but Earth may get a glancing blow.
Need muscle for a tough spot? Turn to fat stem cells
Stem cells derived from fat have a surprising trick up their sleeves: Encouraged to develop on a stiff surface, they undergo a remarkable transformation toward becoming mature muscle cells. The new cells remain intact and fused together even when transferred to an extremely stiff, bone-like surface, which has bioengineers intrigued. These cells, they suggest, could hint at new therapeutic possibilities for muscular dystrophy.
Willpower and desires: Turning up the volume on what you want most
Trying to resist that late-night tweet or checking your work email again? The bad news is that desires for work and entertainment often win out in the daily struggle for self-control, according to a new study that measures various desires and their regulation in daily life.
Oxygen molecule survives to enormously high pressures
Using computer simulations, researchers have shown that the oxygen molecule (O
2) is stable up to pressures of 1.9 terapascal, which is about nineteen million times higher than atmosphere pressure. Above that, it polymerizes, i.e. builds larger molecules or structures.
Targeted DNA vaccine using an electric pulse
The vaccines of the future against infections, influenza and cancer can be administered using an electrical pulse and a specially-produced DNA code, new research suggests. The DNA code programs the body’s own cells to produce a super-fast missile defense against the disease, researchers say.
What do killer whales eat in the Arctic?
Killer whales are the top marine predator. The increase in hunting territories available to killer whales in the Arctic due to climate change and melting sea ice could seriously affect the marine ecosystem balance. New research has combined scientific observations with Canadian Inuit traditional knowledge to determine killer whale behavior and diet in the Arctic.
Addicts' cravings have different roots in men and women
A new brain imaging study suggests stress robustly activates areas of the brain associated with craving in cocaine-dependent women, while drug cues activate similar brain regions in cocaine-dependent men. The study suggests men and women with cocaine dependence might benefit more from different treatment options.
Was the Little Ice Age triggered by massive volcanic eruptions?
Scientists suggest that the Little Ice Age was triggered by an unusual, 50-year episode of four massive volcanic eruptions. This led to an expansion of sea ice and a related weakening of Atlantic currents that caused the cool period to persist for centuries.
New study may answer questions about enigmatic Little Ice Age
According to a new study, the Little Ice Age began abruptly between A.D. 1275 and 1300, triggered by repeated, explosive volcanism, and was sustained for centuries by a self- perpetuating sea ice-ocean feedback system in the North Atlantic Ocean.
Biological time-keeper linked to diabetes
Sleeping disorders have been known for some years to increase the risk of diabetes. Scientists have now linked a gene that plays a key role in synchronizing biological rhythms to type two diabetes.