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Probing the secrets of sharp memory in old age

March 24, 2010

Changiz Geula, Ph.D. and colleagues have discovered elderly people with super-sharp memory — “super-aged” individuals — who somehow escaped formation of brain “tangles,” which consist of an abnormal form of a protein called “tau” that damages and eventually kills nerve cells.

Environment, lifestyle, and genetics may be key factors. Some super-aged individuals might have a genetic predisposition to being super-aged, while others may help preserve high brain function by… read more

No effect of nanotubes on white blood cells, researchers find

December 10, 2004

The introduction of nanotubes in white blood cells caused no measurable change in cell properties like shape, rate of growth or the ability to adhere to surfaces, researchers from Rice University, the University of Texas Health Science Center at Houston, and the Texas Heart Institute have found.

The white blood cells, which were incubated in dilute solutions of Acccnanotubes, treated the nanotubes as they would other extracellular particles –… read more

Alzheimer’s drug ‘halts’ decline

July 30, 2008

Aberdeen University researchers have developed a drug that may halt the progression of Alzheimer’s disease by targeting build-up of Tau tangles (clumps of protein inside nerve cells in the brain).

Trials of the drug Rember in 321 patients showed significant decreases in the rate of mental decline in patients taking the drug. Imaging data also suggested the drug may have had its biggest effect in the parts of the… read more

High-Temperature Superconductors Find a Variety of Uses

May 29, 2001

High-temperature superconductors could allow utilities to triple power capacity without disruptive digging and enable more efficient electric motors and other electronic devices.

Cooled by liquid nitrogen, superconductors are already being used to improve signal reception in cell phone towers and for sensitive magnetic probes in scientific equipment.

Researchers Take Promising Approach to Chemical Computing

April 2, 2010

European researchers have begun work on the Neuneu project, a biologically inspired, “wet” computer designed to mimic living brain functions through chemical assembly processes and pharmaceutical manufacturing techniques.

It would be a massively parallel computer made of lipid bubbles, which are seen as a rough physical emulation of neurons, using “BZ computation,” a form of chemical computing used in molecular-computation research.

The project aims to show how a… read more

Half of Fortune 500s, US govt. still infected with DNSChanger trojan

February 6, 2012

dnschangerfbi

More than two months after authorities shut down a massive Internet traffic hijacking scheme, the malicious software that powered the criminal network is still running on computers at half of the Fortune 500 companies, and on PCs at nearly 50 percent of all federal government agencies, new research shows, Krebs on Security reports.

The malware, known as the “DNSChanger Trojan,” quietly alters the host computer’s Internet settings… read more

Stem-Cell Method May Cheat Death

December 23, 2004

A reproductive research team could have an answer to the ethical and scientific conundrums presented by the pursuit of stem-cell treatments: remove one cell from a very early embryo that has developed to about eight cells (called a morula), and derive stem cells from that single cell.

The embryo would still have the potential to develop into a human if implanted into a womb.

Anthrax Case Renews Questions on Bioterror

August 4, 2008

Has the unprecedented boom in biodefense research made the country less secure by multiplying the places and people with access to dangerous germs?

FBI investigators have long speculated that the motive for the attacks, if carried out by a biodefense insider like Dr. Bruce Ivins, might have been to draw public attention to a dire threat, attracting money and prestige to a once-obscure field. In fact, almost $50 billion… read more

Scientists Take Step Toward Single-Molecule Switches

June 22, 2001
Single molecule in ON and OFF states

Computers of the future may have components that function based on the action of single molecules, according to a paper by researchers at Penn State and Rice University published in the June 22 edition of Science.

Conformational changes — which happen when molecules alter their arrangement by rotation of their atoms around a single bond, effectively changing shape by moving or turning — determine how and when… read more

Beaming Power to UAVs, Space Elevators, and Someday, Earth: The LaserMotive Plan

April 14, 2010

LaserMotive is developing technology for beaming power via lasers to unmanned aerial vehicles (UAVs) and other remote devices, and eventually to the space elevator and for solar power from space.

Model analyzes shape-memory alloys for use in earthquake-resistant structures

February 10, 2012

Earthquake Resistant

Georgia Institute of Technology researchers are analyzing shape-memory alloys for their potential use in constructing seismic-resistant structures.

Recent earthquake damage has exposed the vulnerability of existing structures to strong ground movement.

Shape-memory alloys have the ability to dissipate significant energy without significant degradation or permanent deformation, said Reginald DesRoches, a professor in the School of Civil and Environmental Engineering at Georgia Tech.

The… read more

The BlackBerry Brain Trust

January 5, 2005

The futuristic new Perimeter Institute for Theoretical Physics is a think tank where some of the smartest people in the world are contemplating the foundations of quantum physics.

Participants include Lee Smolin, who propounds a “fecund universe” theory holding that every black hole leads to another universe; Raymond Laflamme, the information theorist who changed Stephen Hawking’s mind on the direction of time in a contracting universe; and Fotini Markopoulou… read more

How to turn gas guzzlers into green machines

August 12, 2008

US citizens could save up to half of 140 billion gallons of gasoline they use each year, by driving around in lightweight hybrid vehicles, say MIT scientists.

Hybrid electric and plug-in hybrid electric cars (with batteries that can be topped up from the grid) offer the greatest potential to replace gasoline in the next 15 to 30 years, they say.

The Next Small Thing

July 15, 2001

Scientists are re-creating our world in the realm of the intensely tiny. The potential payoff: denser hard drives, smaller chips, better medicine.
Top research organizations within large companies and renowned universities are inventing the future: electronics as cheap and plentiful as bar codes on packaging; lightweight vests enmeshed with sensors could measure a person’s vital signs; analysis of a patient’s DNA could be done so quickly and precisely that designer… read more

Facebook: The Entire Web Will Be Social

April 22, 2010

Facebook’s master plan, announced Wednesday, is to make the rest of the web social:

Social plugins bring Facebook to the rest of the web, offering “instant personalization” on websites, where you’ll see which friends have also logged in there, what their activity is, and a set of recommendations based on their actions.

If you indicate you like an article, a band, a restaurant, etc., a site using Facebook’s… read more

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