Declining mental function is often seen as a problem of old age, but certain aspects of brain function actually begin their decline in young adulthood, a new study suggests.
A study published in the New England Journal of Medicine estimated that there are an average of 30 in-flight medical emergencies on U.S. flights every day.
Surveys of WWII infantrymen carried out by U.S. Army Brig. Gen. S.L.A. Marshall found that only 15 to 20 percent had fired their weapons in combat, even when ordered to do so.
Case studies are clearly useful in showing how dishonest tycoons can come undone, or revealing how tricky dilemmas - whether, say, to fire loyal but inefficient employees - can be finessed.
In the end, sharing data, software and materials with colleagues can help an early career researcher to gain recognition—a crucial component of success.
A difficult ethical problem remains, for example, about research that presents more than minimal risk without immediate prospect of direct benefit to the children involved.
One of the authors of the study, Dr. Itzhak Fried, describes it like this: "In a way then, reliving past experience in our memory is the resurrection of neuronal activity from the past".
The US National Center for Atmospheric Ressearch has already suggested that the proposal to inject ulphur into the atmosphere might affect rainfall patterns across the tropics and the Southern Ocean.