Recently Added Most commented

Listening to the sound of skin cancer

October 18, 2006

Researchers at the University of Missouri-Columbia can now detect the spread of skin cancer cells through the blood by literally listening to their sound.

The minimally invasive technique causes melanoma cells to emit ultrasonic noise, and could let oncologists spot early signs of metastases — as few as 10 cancer cells in a blood sample — before they even settle in other organs.

The team’s method, called photoacoustic… read more

Human species ‘may split in two’

October 18, 2006

Humanity may split into two sub-species in 100,000 years’ time, as predicted by H.G. Wells, says evolutionary theorist Oliver Curry of the London School of Economics.

He expects a genetic upper class would be tall, slim, healthy, attractive, intelligent, and creative and a far cry from the “underclass” humans, who would have evolved into dim-witted, ugly, squat goblin-like creatures.

But in the nearer future, humans will evolve in… read more

Two vaccines show promise against prion disease

October 18, 2006

University of Rochester Medical Center researchers have developed two new vaccine therapies that produced protective immune responses against prions in mice, and believe they could be further developed to work in humans or livestock.

Experimental malaria vaccine shows huge promise

October 18, 2006

The first-ever commercial vaccine against malaria has been found to protect 41% of volunteers who were exposed to malarial mosquitoes in the lab.

Is There Room for the Soul?

October 16, 2006

Consciousness has become the focus of an expanding intellectual industry involving the combined, but not always harmonious, efforts of neuroscientists, cognitive psychologists, artificial intelligence specialists, physicists, and philosophers.

A special issue.

Space elevators to heave themselves skyward

October 16, 2006

Early prototypes for space elevators will compete in two NASA competitions at the Wirefly X Prize Cup in Las Cruces, New Mexico on October 20 and 21.

The hope is that one day a space elevator, comprised of a robot that will climb a strong tether about 100,000 kilometers (60,000 miles) long, will be able to send humans or other cargo cheaply into space.

A nanoplasmonic molecular ruler for measuring nuclease activity and DNA footprinting

October 16, 2006

Researchers have a new tool for studying interactions between proteins and nucleic acids: a nanoscale optical ruler than can detect small changes in the size of a given piece of DNA.

This work is reported in the inaugural issue of the journal Nature Nanotechnology.

The device uses gold nanoparticles, which emit light at well-defined wavelengths of light, influenced by the exact physical and chemical environment, such as DNA… read more

Computer History Museum Minsky Event Cancelled

October 16, 2006

The Computer History Museum announced that due to a sudden family health matter, “An Evening with Marvin Minsky in Conversation with Nils J. Nilsson” has been cancelled.

Marvin Minsky speaks at Computer Museum

October 16, 2006

AI pioneer Marvin Minsky will speak with Nils J. Nilsson about his life’s work, the origins and development of the field, and his significant Society of Mind model of human and machine intelligence.

Minsky will be inducted as a Fellow at the Museum’s annual Fellow Awards Dinner and Ceremony on Tuesday October 17th.

Tracking Information Flow in the Brain

October 16, 2006

MIT scientists have engineered a nano-sized calcium sensor that may eventually shed light on the intricate cell-to-cell communications that make up human thought.

Alan Jasanoff and his team at the Francis Bitter Magnet Lab and McGovern Institute of Brain Research have found that tracking calcium, a key messenger in the brain, may be a more precise way of measuring neural activity, compared with current imaging techniques, such as traditional… read more

A Database for Disease

October 16, 2006

A newly developed genetic “roadmap” promises to streamline the drug discovery process. Called the Connectivity Map, this public database matches drug compounds with diseased cells and the processes occurring within them.

At any point in time, some genes in a cell are expressed, or “on,” while others are not. And a cell’s particular profile of activity is known as its gene-expression signature. When cells are exposed to a drug,… read more

Say hello to your robot self

October 16, 2006

Dr. Hiroshi Ishiguro is at the forefront of designing machines that look just like us.

Equipped with off-board cameras, microphones and floor sensors, Repliee Q1Expo, an android copy of Ayako Fujii, a real newscaster, can detect human presence and interview people with a microphone, moving its upper body in a smooth, natural fashion.

Dr. Ishiguro can remote-control it, Wizard of Oz-style, using a motion-capture system that transmits his… read more

Lasers control quantum processes

October 16, 2006

A research team at the National Research Council Canada (Ottawa) has developed a method of using laser pulses to control quantum processes.

The method, described in the October 13 issue of Science, was illustrated by changing the outcome of a chemical reaction.

According to Albert Stolow, the NRC team leader, the tool could be used to directly encode nanoscale information or control nanoscale switches.

Another application is… read more

Liquid to seal open wounds fast

October 16, 2006

A biodegradable solution comprising peptides can stop bleeding in wounded rodents in less than 15 seconds.

When the solution is applied to open wounds, it forms a gel that seals the site of injury and eventually breaks down into amino acids, which can be used by surrounding cells.

Technique May Help Revive Head-Injury Victims

October 16, 2006

Doctors yesterday reported the first evidence that targeted electrical deep brain stimulation (DBS) may help head-trauma victims stuck in a state of semiconsciousness, after an experiment apparently restored some of one patient’s abilities to function and communicate.

The technique, which has been shown to be effective for treating some patients with Parkinson’s disease, severe pain, epilepsy, depression or obsessive-compulsive disorder, involves inserting tiny electrodes into the brain to stimulate… read more

close and return to Home