University of Dundee

Early birds and night owls should take blood pressure medication at different times of the day to minimize their risk of a heart attack, according to a new study that looked at whether our internal clock affected medication effectiveness.

Cartilage grown in a flat Petri dish may not be optimally-shaped for replacing the body's own natural cartilage parts. Scientists from a consortium of UK universities, however, are developing a possible solution. They're using "ultrasonic tweezers" to grow cartilage in mid-air.

Unlike experimental laser-based tractor beams that so far have only been able to influence targets at the microscopic level so far, researchers from the University of Dundee have created a tractor beam using ultrasonic energy to move macro (>1 cm) objects towards the energy source.