Archive | November, 2012

FOUNTAIN OF YOUTH’ TECHNIQUE REJUVENATES AGING STEM CELLS

An aged stem cell before growth factors were added (credit: Faculty of Medicine/University of Toronto) A new method of growing cardiac tissue is teaching old stem cells new tricks. The discovery, which transforms aged stem cells into cells that function like much younger ones, may one day enable scientists to grow cardiac patches for damaged or diseased […]

CAN A JELLYFISH UNLOCK THE SECRET OF IMMORTALITY?

(Credit: Henry Kaiser, National Science Foundation/Wikimedia Commons) The jellyfish can  transform itself back to a polyp, the organism’s earliest stage of life, author Nathaniel Rich writes in The New York Times. During rejuvenation, it undergoes cellular transdifferentiation, an unusual process by which one type of cell is converted into another — a skin cell into a nerve […]

SGI’s Twitter heartbeat maps could track Australia’s mood

US sentiment on a live Twitter feed with the red showing negative sentiment and blue showing positive sentiment. Picture: SGI THE technology used to create “heat maps” that track sentiment on Twitter may have uses in Australian politics and business, its inventors say. California-based Silicon Graphics International (SGI) trialled the technology during November’s US presidential elections and October’s Hurricane Sandy. […]

BLIND PATIENT READS WORDS STIMULATED DIRECTLY ONTO THE RETINA

Neuroprosthetic device uses implant to project visual braille (Credit: Second Sight) Researchers have projected braille patterns directly into a blind patient’s retina, allowing him to read four-letter words accurately and quickly with an ocular neuroprosthetic device. The device, Second Sight‘s Argus II, has been implanted in over 50 patients, many of who can now see color, movement and objects. […]

ROBOT MAY EXPLORE MYSTERIOUS MOON CAVERNS

William Whittaker’s cave-crawling robot could one day explore lunar caverns (credit: William Whittaker) William ‘Red’ Whittaker often spends his Sundays lowering a robot into a recently blown up coal mine pit near his cattle ranch in Pennsylvania (see video below). By 2015, he hopes that his robot, or something like it, will be rappelling down […]

COLOUR-CODED MAP reveals the hidden life of Tweets

Every Tweet tells a story, and sometimes a second story may emerge when you look at a collection of Tweets. Researchers already analyse Tweets for health information and to track endangered languages; now two researchers from University College London, James Cheshire and Ed Manley, have connected the dots between language and location to reveal the hidden life of […]