You Find It

Glasperlenspiel: Scientists propose new test for gravity

04:25 04-09-2010; source: www.sciencedaily.com

A new experiment proposed by physicists may allow researchers to test the effects of gravity with unprecedented precision at very short distances -- a scale at which exotic new details of gravity's behavior may be detectable.

Magnetism's subatomic roots: Study of high-tech materials helps explain everyday phenomenon

19:25 03-09-2010; source: www.sciencedaily.com

Theoretical physicists have created a new model that helps define the subatomic origins of ferromagnetism -- the everyday "magnetism" of compass needles and refrigerator magnets. The model was created to explore the inner workings of ferromagnetic compounds that are related to high-temperature superconductors.

Chemists, engineers achieve world record with high-speed graphene transistors

18:25 03-09-2010; source: www.sciencedaily.com

Researchers have developed a new fabrication process for high-speed graphene transistors using a nanowire as the self-aligned gate. This new technique does not produce any appreciable defects in the graphene during fabrication, so the carrier mobility is retained. Also, by using a self-aligned approach with a nanowire as the gate, the group was able to overcome alignment difficulties previously encountered and fabricate short channel devices with unprecedented performance.

Next step in evolution? A technical life form that passes on knowledge and experience

16:25 03-09-2010; source: www.sciencedaily.com

Dutch biologist Gerard Jagers op Akkerhuis has developed the ‘operator hierarchy’ -- a system based on the complexity of particles and of organisms, which can predict the next step in evolution: a technical life form, that can pass on its knowledge and experience to the next generation.

New model may simplify high-dose radiosurgery planning

02:25 03-09-2010; source: www.sciencedaily.com

There is yet no straightforward way to determine the optimal dose level and treatment schedules for high-dose radiation therapies such as stereotactic radiation therapy, which is used to treat brain and lung cancer, or for high-dose brachytherapy for prostate and other cancers. Radiation oncology researchers may have solved the problem with a new mathematical model called the Generalized LQ (gLQ) Model that encompasses all dose levels and schedules.

Chemists discover method to create high-value chemicals from biomass

01:25 03-09-2010; source: www.sciencedaily.com

Chemist Walter Trahanovsky was trying to produce sugar derivatives from biomass using high-temperature chemistry. He was surprised when his research also produced significant yields of high-value chemicals.