During the last glacial period, within only a few decades the influence of atmospheric CO2 on the North Atlantic circulation resulted in temperature increases of up to 10 degrees Celsius in Greenland -- as indicated by new climate calculations.

A new study inspired by a court case involving a driver seriously hurt in an accident when following another car to a destination, provides evidence to show that the car behind makes risky driving maneuvers. Driving faster, more erratically, closer to the car in front and jumping traffic lights are all blamed on a fear of getting lost. Drivers are advised to provide the follower with a map or navigational guide before setting off.

A new theory predicts how dark matter may be annihilating much more rapidly in the Milky Way, than in smaller or larger galaxies and the early Universe.

A subgroup of patients with osteosarcoma -- a form of bone cancer -- could be helped by an existing drug, suggest scientists. In the largest genetic sequencing study of osteosarcoma to date, scientists discovered that 10 percent of patients with a genetic mutation in particular growth factor signalling genes may benefit from existing drugs, known as IGF1R inhibitors.

Selfless heroism isn't the best strategy in life-and-death disaster situations involving groups of people, a new study suggests.

A self-help approach to a graded exercise program, supervised by a specialist physiotherapist, is safe and may reduce fatigue for some people with chronic fatigue syndrome (CFS), according to a new trial of 200 people.

Photodynamic therapy is often used to treat brain tumors because of its specificity — it can target very small regions containing cancerous cells while sparing the normal cells around it from damage. It works by injecting a drug called a photosensitizer into the bloodstream, where it gathers in cells, and then exposing the drug-filled cells to light. When the photosensitizer is exposed to this light, it emits what is known as a reactive oxygen species (ROS) that causes the cells to die.

Plants adopt different strategies to survive the changing temperatures of their natural environments. This is most evident in temperate regions where forest trees shed their leaves to conserve energy during the cold season. In a new study, a team of plant biologists found that some plants may selectively kill part of their roots to survive under cold weather conditions.

One of the current challenges in biology is to understand rapidly-changing phenomena. Interestingly, only a small fraction of them is due to proteins acting in isolation, the majority of biological events are regulated by proteins acting together in clusters. Researchers have developed a new tool, called "CRY2clust", to trigger protein cluster formation in response to blue light. This new technique has a much faster response rate and higher sensitivity to light than existent methods.

With SLAC's X-ray laser and synchrotron, scientists measured exactly how much energy goes into keeping a crucial chemical bond from triggering a cell's death spiral.

A new study investigated whether children whose mothers had an alcohol-related disorder would be at risk of early-life contact with the justice system, which can lead to many negative outcomes across an individual's life span. Such outcomes can include repeated contact with the justice system, social disadvantages and marginalization, and mental-health and substance-use issues.

For the first time, a computer simulation -- so detailed it took a full year to run -- shows how spicules form, helping scientists understand how spicules can break free of the sun's surface and surge upward so quickly.

Peroxisomal biogenesis disorder, which has been linked only to lipid metabolism, is also associated with sugar metabolism.

New research provides the first evidence that cortical targets could represent a novel therapeutic site for improving motor function in humans paralyzed by spinal cord injury.

Cognitive training, blood pressure management for people with hypertension, and increased physical activity all show modest but inconclusive evidence that they can help prevent cognitive decline and dementia, but there is insufficient evidence to support a public health campaign encouraging their adoption, says a new report.