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First diagnostic test for Alzheimer’s and Parkinson’s disease

April 8, 2008

Power3 Medical Products is launching what it claims is the first blood test for neurodegenerative diseases such as Parkinson’s, Lou Gehrig’s and Alzheimer’s.

The test measures a suite of 59 protein biomarkers associated with the presence or absence of these diseases. Currently, there are no diagnostic tests, only clinical diagnosis of symptoms.

Other researchers urge caution, since larger studies haven’t yet confirmed the test, and diseases like Alzheimer’s… read more

Paint-on semiconductor outperforms chips

July 13, 2006

Researchers at the University of Toronto have created a semiconductor device that outperforms today’s conventional chips — and they made it simply by painting a liquid onto a piece of glass.

The Toronto team cooked up semiconductor particles a few nanometers across in a flask containing extra-pure oleic acid, the main ingredient in olive oil. They then placed a drop of solution on a glass slide patterned with gold… read more

The Human Genome in 3-D

October 9, 2009

3d_x220

DNA molecules appear to form a polymer structure known as a fractal globule, in which segments that are close to each other in the linear sequence are also close in the three-dimensional globule, researchers have found.

Intel sampling first ICs made on 90-nm line

September 4, 2003

Intel Corp. is sampling the first microprocessors manufactured on its 90-nanometer process technology — the Prescott for desktop PCs and the Dothan, an improved version of the Pentium M chip for laptops.

Prescott, an upgrade over current Pentium 4 microprocessors, doubles the on-die Level 2 cache to 1 Mbyte with an expected 3.4-GHz frequency.

Nanoscale freighter hauls its first load

April 11, 2008

A nanoscale “monorail” that can creep along a nanotube track has shifted its first load, hauling a gold nugget a distance of 0.5 micrometers.

The central tube is one micrometer long and acts as a rail for the second, smaller, 200-nanometer nanotube. The outer “monorail carriage” is driven by applying current to the inner rail, and can move in both directions along the rail; it can also rotate around… read more

Meet the Remote-Control Self

July 21, 2006

Hiroshi Ishiguro, a senior researcher at ATR Intelligent Robotics and Communication Laboratories outside Kyoto, has created a machine in his own image — a robot that looks and moves exactly like him. It sits on a chair and gazes around the room in a very humanlike fashion, just like its creator.

To spot an alien, follow the pollution trail

October 19, 2009

Light pollution from cities and the presence of CFCs and other artificial compounds in the atmosphere (indicated by absorption at characteristic wavelengths) could be signs of intelligent life on alien planets.

Defect-free graphene discovery could led to large-scale manufacturing of graphene-based devices

New method could open the way to large-scale manufacturing of graphene-based devices with applications in fields such as electronics, energy, and healthcare
February 5, 2013

Scanning Electron Microscope image of well-aligned hexagonal graphene domains (credit:

A team led by Oxford University scientists has overcome a key problem of growing graphene — a one atom-thick layer of carbon — without the defects that weaken it and prevent electrons from flowing freely within it when using chemical vapor deposition.

With the previous methods, tiny flakes of graphene form with random orientations, leaving defects or seams between flakes that grow together.… read more

Ban cloning babies, demand world’s top scientists

September 23, 2003

Cloning babies should be banned worldwide by the United Nations, more than 60 of the world’s leading scientific academies demanded on Monday.

But the ban should not extend to therapeutic cloning, they added.

Researchers create first thermal nanomotor

April 16, 2008

Researchers from the Universitat Autonoma de Barcelona have created the first nanomotor propelled by changes in temperature.

The “nanotransporter” consists of a carbon nanotube covered by a shorter concentric nanotube that can move back and forth to transport cargo when heated on one end. Movement can be controlled with a precision of less than the diameter of an atom.

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How computational complexity will revolutionize philosophy

August 10, 2011

complexity

MIT computer scientist Scott Aaronson has put forward a persuasive argument that computational complexity theory will transform philosophical thinking about a range of topics such as the nature of mathematical knowledge, the foundations of quantum mechanics, and the problem of artificial intelligence.

Computational complexity theory is concerned with the question of how the resources needed to solve a problem scale with some measure of the problem size,… read more

Sensory illusions dazzle at graphics conference

August 3, 2006

Inventions on display at the SIGGRAPH 2006 computer graphics conference, which opened in Boston, on Monday,
include a toy house that appears to warp into surreal shapes, a handheld device that “pulls” a person around, and a display that generates holographic illusions using scores of hidden projectors.

New Route To Nano Self-assembly Found

October 26, 2009

Researchers at Lawrence Berkeley National Laboratory have found a way to induce nanoparticles to assemble themselves into complex arrays, using block copolymers with surfactants as mediator molecules.

Shooting for Space

October 7, 2003

Cisco and its partners, including NASA, have launched a router into low Earth orbit as a test of extending the Internet into space.

Space-based routers could be used to tie the military’s myriad networks together and the government’s research networks together so that personnel on land, in the air or at sea can communicate directly.

Cisco also sees private-sector enterprise and consumer applications.

Many African-Americans have a gene that prolongs life after heart failure

April 21, 2008

Washington University School of Medicine researchers and colleagues have found that about 40 percent of African-Americans have a genetic variant that can protect them after heart failure and prolong their lives through an effect that resembles that of beta blockers.

The new study offers a reason why beta blockers–drugs widely prescribed for heart failure–don’t appear to benefit some African-Americans. The GRK5 gene codes for the GRK5 enzyme, which depresses… read more

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