Washington, Apr 25 : Taking a revolutionary step towards modern communication technologies, a doctoral student posted a status update on the social networking Web site Twitter - only by thinking about it.

Adam Wilson's message-"using EEG to send tweet"- just 23 characters long, demonstrated a natural, manageable way in which "locked-in" patients can couple brain-computer interface technologies with modern communication tools.

Wilson, from University of Wisconsin-Madison biomedical engineering doctoral student, is among a growing group of researchers worldwide who aim to perfect a communication system for users whose bodies do not work, but whose brains function normally.

Washington, Apr 25 : Researchers from University of Pennsylvania School of Medicine have identified a potential therapeutic target for maintaining healthy blood pressure.

In the study conducted using mouse model, the team discovered that mice lacking the receptor for one type of prostaglandin, a family of fatty compounds key to the cardiovascular system, have lower blood pressure and less atherosclerosis.

Washington, Apr 25 : University of Calgary researchers have made a discovery that could change diabetics' lives forever.

A skin patch, called `Electronic Mosquito', could provide a less-invasive alternative for diabetics who need to take regular samples of their own blood to keep glucose levels in check.

The common method of drawing blood from fingertips and using glucose testing strips and metres can be painful, inconvenient and time-consuming.

Therefore, electrical engineers at the Schulich School of Engineering at the University of Calgary have patented the device.

Washington, Apr 25 : Forget dieting and gruelling exercise regime - just have a positive image of your body and you'll be able to shrink your waist line and kick the butt, say researchers.

The research team from Temple University has shown that positive body image is more effective than exercise in helping young women lose weight and quit smoking.

Washington, Apr. 25 : Expressing serious concern over reports that the Taliban is inching closer towards Islamabad, the Chairman of the US Joint Chiefs of Staff, Admiral Mike Mullen, has said Pakistan could be taken over by insurgents.

"We're certainly moving closer to the tipping point where Pakistan could be overtaken by extremists," The Nation quoted Admiral Mullen, as saying.

Washington, April 25 : Michelle Obama is set to grace the cover of a biographical comic book.

The First Lady will feature in the Female Force: Michelle Obama "as she secures her place in American history".

Bluewaters Productions told USA today that the mum-of-two would be deprived of any superpowers but her toned arms would portray mighty grace.

President Darren Davis said the comic, priced at 3.99 dollars, was already gathering amazing response.