Most Recently Added Most commentedBy Title | A-Z

Page 70 of 1,036First102030666768697071727374758090100Last

Anti-satellite weapon used simple technology

January 21, 2007

Relatively simple technology — an ordinary medium-range ballistic missile — suffices to take out a satellite the way the Chinese government apparently did last week.

The US government says China launched a ballistic missile on January 11 that destroyed one of its own spacecraft, a defunct weather satellite, in an apparent test of anti-satellite technology.

The destruction of the satellite is thought to have produced millions of fragments,… read more

Topics: Environment/Climate | Survival/Defense

Comments (0)

Antibiotic Resistant Bacterium Uses Sonar-Like Strategy to ‘See’ Enemies Or Prey

December 28, 2004

Scientists have found that bacteria can use a Sonar-like system to spot other cells (either normal body cells or other bacteria) and target them for destruction.

Reported in the December 24 issue of Science, this finding explains how some bacteria know when to produce a toxin that makes infection more severe. It may lead to the design of new toxin inhibitors.

Schepens Eye Research Institute news… read more

Topics: Biomed/Longevity | Biotech

Comments (0)

Antibiotic-Boosting Drug Kills Superbugs

October 19, 2004

Researchers at Pharmaceutica claim to have discovered a compound that renders the MRSA superbug vulnerable to the antibiotic it normally resists.

MRSA — methicillin-resistant Staphylococcus aureus — is defined by its ability to resist the antibiotic methicillin. MRSA strains now cause up to 60% of all “staph” infections in some hospitals. Some MRSA strains are also becoming resistant to other antibiotics — including vancomycin, the antibiotic doctors resort to… read more

Topics: Biomed/Longevity

Comments (0)

Antibodies Offer a New Path for Fighting Flu

February 23, 2009

In a discovery that could radically change how the world fights influenza, researchers have engineered antibodies that protect against many strains of the virus, including even the 1918 Spanish flu and the H5N1 bird flu, and could lead to the development of a flu vaccine that would not have to be changed yearly.

Topics: Biomed/Longevity

Comments (0)

Antibody Drugs Customized by Genotype

June 12, 2009

PIKAMAB believes that it can make monoclonal antibodies (engineered to hone in on specific biological targets) more effective by grouping patients together based on their genotype and offering a customized antibody developed for that genotype.

The company hopes that this “stratified” approach to drug development and treatment will help drug companies achieve better results.

Topics: Biomed/Longevity | Biotech

Comments (0)

Antibody-coated carbon nanotubes fight cancer

June 17, 2008

Researchers from the University of Texas Southwestern Medical Center and University of Texas, Dallas have developed a new way to kill cancer cells by coating cancer-seeking antibodies onto carbon nanotubes.

The researchers attached monoclonal antibodies that target specific sites on lymphoma cells (a type of cancer) to carbon nanotubes. When added to cancer cells (in vitro), the antibody-coated nanotubes attached to the cells’ surfaces. When exposed to near-infrared light,… read more

Comments (0)

Anticancer Nanotech: Protein Can Be Used To Carry Radioactive Isotopes To Cancerous Tumor

September 23, 2009

Nanospheres of Albumin, a protein found in the blood, can be used to carry radioactive isotopes to the site of a cancerous tumor in the body, avoiding many of the side-effects of conventional radiotherapy, researchers at the National Institute of R&D for Physics and Nuclear Engineering, in Bucharest have found.

Topics: Biomed/Longevity | Nanotech/Materials Science

Comments (0)

Anticancer siRNA therapy advances, thanks to nanoparticles

March 28, 2008

California Institute of Technology, University of North Carolina at Chapel Hill and Ghent University researchers are making progress in developing broadly applicable, nanoparticle-enabled siRNA anticancer therapeutics.

They found that siRNA-containing nanoparticles deliver the siRNA to tumors more effectively when the nanoparticle are targeted to the tumor. They also found that the targeted nanoparticles effectively penetrated lung metastases, did not enter liver cells, and showed little immunotoxicity.

Small pieces… read more

Topics: Biomed/Longevity | Nanotech/Materials Science

Comments (0)

Anticipating the Future to ‘See’ the Present

June 10, 2008

Scientists argue that the brain has evolved to see a split second into the future when it perceives motion.

Because it takes the brain at least a tenth of a second to model visual information, it is working with old information. By modeling the future during movement, it is “seeing” the present.

This is a general principle the brain applies to a wide variety of illusions that trick… read more

Topics: Cognitive Science/Neuroscience

Comments (0)

Antihydrogen trapped at long last

November 18, 2010

Atoms made of antimatter have been trapped for the first time, in experiment called the Antihydrogen Laser Physics Apparatus (ALPHA) at the CERN particle physics laboratory. The feat will allow us to test whether antimatter responds to the fundamental forces in the same way as regular matter.

Ref.: “Trapped antihydrogen,” Nature (2010)doi:10.1038/nature09610,

published online November 17, 2010

Topics: Physics/Cosmology

Comments (0)

Antimatter atoms captured for the first time

February 21, 2002

Antimatter atoms have been captured for the first time by researchers at CERN, the European Laboratory for Particle Physics.
The research team used powerful magnetic fields to trap antiprotons in CERN’s particle accelerator and then introduced a beam of antielectrons, or positrons, and used an electric field to slow them down and bring the two types of particles together.

When they exposed the particle trap to an electric field,… read more

Topics: Nanotech/Materials Science

Comments (0)

Antioxidants may help avoid heat stroke

April 4, 2008

University of Rochester researchers and colleagues have discovered that antioxidants may protect against some forms of heat stroke.

When mice with the malignant hyperthermia (MH) mutation were given the antioxidant N-acetylcysteine (NAC), they had a marked reduction in sensitivity to heat stress.

MH reactions occur in one in 10,000 adult patients undergoing general anesthesia, resulting in severe hyperthermia.

University of Rochester Medical Center News Release

Topics: Biomed/Longevity

Comments (0)

Antioxidants reverse age-related learning deficits in mice

June 23, 2003

UCLA neuroscientists have reversed a “dramatic loss of learning and memory function” in aging mice using antioxidants, as reported in Proc. Natl. Acad. Sci. June 18.

“Chronic systemic administration of two synthetic catalytic scavengers of reactive oxygen species, Eukarion experimental compounds EUK-189 and EUK-207, from 8 to 11 months almost completely reversed cognitive deficits and increase in oxidative stress taking place during this time period in brain.”

Topics: Cognitive Science/Neuroscience

Comments (0)

Antique engines inspire nano chip

July 25, 2007

University of Wisconsin-Madison scientists are proposing is a new type of computing architecture only based on nanoscale mechanical elements.

The nanocomputer would use ultra-hard materials such as diamond or piezoelectric materials, which change shape when an electric current is applied, and would use the push and pull of each tiny part to carry out calculations.

Unlike silicon, they would not be vulnerable to heat problems as size is… read more

Topics: Computers/Infotech/UI | Nanotech/Materials Science

Comments (0)

Antisocial robots go to finishing school

September 20, 2006

Robots will need emotional capabilities if they are to cooperate smoothly and flexibly with humans in our residential environments, says Shuji Hashimoto, director of the humanoid robotics centre at Waseda University.

One method: sensors worn by their owner to spot signs of stress. These could include galvanic skin sensors that detect sweat by measuring the conductivity of the skin, and pulse monitors. Neural networks will then be able to… read more

Topics: AI/Robotics

Comments (0)

Page 70 of 1,036First102030666768697071727374758090100Last
close and return to Home