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SCIENTISTS ARE A WHISKER AWAY FROM SEMICONDUCTING NANOWIRES

June 25, 2002

Boron crystalline nanowires (“nanowhiskers”) may replace carbon nanotubes as nanoscale semiconductors.

3D maps show brain gene activity

June 25, 2002

A 3D map of the brain’s genetic activity should help researchers pinpoint the neurological underpinnings of autism, schizophrenia and other brain disorders.

AI to Assist Alzheimer’s Patients

June 25, 2002

The Activity Compass, a Palm handheld with a GPS receiver and wireless modem, will memorize an Alzheimer’s patient’s daily routine and offer him directions when he becomes lost or confused.

The New Hearing Aid

June 25, 2002

Adding increased stochatic (random) noise to cochlear implant signals makes the neural pattern more natural, increases the perceived dynamic range, allowing patients to detect subtler sounds, according to Dr. Jay Rubinstein, associate professor of otology at the University of Iowa, speaking at the conference of the American Society for Artificial Internal Organs.

Human Demand Exceeds Earth’s Sustainable Supply

June 24, 2002

The global population exhausts a supply of natural resources equivalent to that produced by 1.2 earths each year, eroding nature’s ability to regenerate. This era of unbounded exploitation may soon be forced to a screeching halt, according to a study published today in the Proceedings of the National Academy of Science.

Nanotech: Big Dreams, Small Steps

June 24, 2002

Diagnostic tools and sensors for bioscience and materials to enhance the fabrication of complex materials (such as gene chips) are the most likely nantechnology products to emerge in the next five years, according to experts.These will followed by diagnostic technologies to help researchers better understand and measure nanoscale interactions, mainly in biotech, then nanotherapeutic devices that will carry stores of drugs through the blood stream, and further off, nanoscale electronics.

Nanotech Tubes Could Form Basis of New Drug Purification Techniques

June 21, 2002

Researchers have developed a smart membrane containing tiny silica nanotubes that is capable of separating beneficial from useless or even harmful forms of a cancer-fighting drug molecule.

Theory Challenges Darwin Doctrine Of Common Descent

June 21, 2002

Cellular evolution began in a communal environment in which the loosely organized cells took shape through extensive horizontal gene transfer, according to Carl Woese, a microbiologist at the University of Illinois at Urbana-Champaign.

His theory challenges the longstanding Darwinian assumption known as the Doctrine of Common Descent — that all life on Earth has descended from one original primordial form.
On the evolution of cells, Carl R.… read more

Robot on the run

June 21, 2002

Scientists running an experiment with “living robots” that think for themselves said they were amazed to find one had escaped from a building and traveled out the parking lot.

“But there’s no need to worry, as although they can escape they are perfectly harmless and won’t be taking over just yet” mused Professor Noel Sharkey of the Magna science centre in Rotherham, South Yorkshire in Australia.

Stem cell hopes double

June 21, 2002

Scientists from the National Institutes of Health have reversed the symptoms of Parkinson’s disease in rats using stem cells from mouse embryos. Another team of scientists from the University of Minnesota Medical School has isolated a stem cell from adult human bone marrow that can produce all the tissue types in the body, from blood to muscle to nerve.

The new reports may re-fuel the debate in the US… read more

Fresh fears over mobile phones

June 21, 2002

Research by the Radiation and Nuclear Safety Authority in Finland with human brain cells suggests that radiation from mobile phones damages the blood-brain barrier. This could lead to fatigue, sleep disturbances, and or possiblye Alzheimer’s disease, according to researchers.

Net ‘brain’ has all the answers

June 21, 2002

Cambridge University researchers have developed an AI-based system to answer Web site questions. The system will be used by Sony to offer technical support to PlayStation users.

TOP500 List of World’s Fastest Supercomputers Released

June 20, 2002

The 19th edition of the TOP500 list of the world’s fastest supercomputers was released today.

The recently installed Earth Simulator supercomputer at the Earth Simulator Center in Yokohama, Japan is the new number 1, with its performance of 35.86 Tflop/s — almost five times higher than the now #2 IBM ASCI White system at Lawrence Livermore National Laboratory (7.2 Tflop/s).The total combined performance of all 500 computers… read more

Chips’ future cast

June 20, 2002
Image A shows a quartz template used to press ultrasmall patterns into silicon. Image B shows the pattern as it appears in silicon.

A new laser-stamping technique could produce computer chips with 100 times more transistors on a chip, according to Stephen Chou of Princeton University.

The research could lead to patterns imprinted with features only 10 nanometers wide onto a silicon wafer, compared to the lower limit of about 130 nanometers wide with photolithography.

The technique is derived from a similar method used to print compact discs.… read more

Light’s Information-Carrying Capacity Doubles

June 17, 2002

Scottish researchers report that they have succeeded in encoding two bits of information on a single photon by sorting individual photons according to their orbital angular momentum (one of two possible spin states).

The findings represent a step toward exploiting orbital angular momentum for quantum information processing and the possibility of a much greater density of information transfer.

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