Stable, self-disrupting microbubbles as intravenous oxygen carriers

Severe oxygen deficiency eventually leads to cardiac arrest. If the blood's oxygen content cannot be rapidly re-established, the patient may die within minutes. In the journal Angewandte Chemie, American scientists have introduced ...

'Ambulance drone' prototype unveiled in Holland

A Dutch-based student on Tuesday unveiled a prototype of an "ambulance drone", a flying defibrillator able to reach heart attack victims within precious life-saving minutes.

Violent crime 'race gap' narrows, but persists in US

The U.S. 'race gap' in the commission of violent crime has narrowed substantially, yet persists in many cities - with murder arrest rates for African Americans out-distancing those for whites - concludes a new 80-city study ...

Sustained police effort explains higher arrests for gun murders

The primary reason gun fatalities result in arrests more frequently than nonfatal shootings is police devote more time and resources to the fatal cases, a new study by scholars at Duke and Northeastern universities finds.

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