New system for detection of single atoms

New system for detection of single atoms: Records photon bursts from optical cavity

Physics / General Physics

created May 17, 2009 | popularity 5 / 5 (13) | comments 2

Scientists have devised a new technique for real-time detection of freely moving individual neutral atoms that is more than 99.7% accurate and sensitive enough to discern the arrival of a single atom in less ...


First direct observations of biological particles in high-altitude ice clouds

First direct observations of biological particles in high-altitude ice clouds

Space & Earth / Earth Sciences

created May 17, 2009 | popularity 4.3 / 5 (10) | comments 1

A team of UC San Diego-led atmospheric chemistry researchers moved closer to what is considered the "holy grail" of climate change science when it made the first-ever direct detection of biological particles ...


Astronauts trying to revive Hubble spectrograph (AP)

Stuck bolt, dead battery bedevil Hubble repairs

Space & Earth / Space Exploration

created May 17, 2009 | popularity 4.1 / 5 (9) | comments 9

(AP) -- Spacewalkers' specially designed tools couldn't dislodge a balky bolt interfering with repairs Sunday at the Hubble Space Telescope, so they took an approach more familiar to people puttering around ...


One sponge-like material, three different applications

Chemistry / Materials Science

created May 17, 2009 | popularity 4.1 / 5 (9) | comments 0

A new sponge-like material that is black, brittle and freeze-dried (just like the ice cream astronauts eat) can pull off some pretty impressive feats. Designed by Northwestern University chemists, it can remove mercury from ...


The future of personalized cancer treatment: An entirely new direction for RNAi delivery

The future of personalized cancer treatment: An entirely new direction for RNAi delivery

Biology / Biotechnology

created May 17, 2009 | popularity 5 / 5 (6) | comments 1

In technology that promises to one day allow drug delivery to be tailored to an individual patient and a particular cancer tumor, researchers at the University of California, San Diego School of Medicine, ...


Novel vaccine approach offers hope in fight against HIV

Novel vaccine approach offers hope in fight against HIV

Medicine & Health / HIV & AIDS

created May 17, 2009 | popularity 3.9 / 5 (7) | comments 3

A research team may have broken the stubborn impasse that has frustrated the invention of an effective HIV vaccine, by using an approach that bypasses the usual path followed by vaccine developers. By using ...


Enabling graphene-based technology via chemical functionalization

Chemistry / Materials Science

created May 17, 2009 | popularity 4.2 / 5 (5) | comments 0

Graphene is an atomically thin sheet of carbon that has attracted significant attention due to its potential use in high-performance electronics, sensors and alternative energy devices such as solar cells. While the physics ...


Where is the line on natural remedies?

Medicine & Health / Medications

created May 17, 2009 | popularity 5 / 5 (4) | comments 6

As a breast cancer specialist, Dr. Barbara Bowers uses a whole arsenal of alternative treatments to help her patients -- acupuncture, green tea extract, vitamins, meditation and yoga, to name a few.


In this image obtained from NASA video, astronauts work to service the Hubble space telescope

Astronauts to undertake fourth walk to repair Hubble telescope

Space & Earth / Space Exploration

created May 17, 2009 | popularity 5 / 5 (3) | comments 2

US astronauts on Sunday will undertake a fourth in a series of five daily spacewalks intended to equip the 19-year-old Hubble Space Telescope for at least another five years of valuable scientific work.


Genes that influence start of menstruation identified for first time

Medicine & Health / Genetics

created May 17, 2009 | popularity 5 / 5 (3) | comments 1

Researchers from the Peninsula Medical School, along with collaborators from research institutions across Europe and the United States, have for the first time identified two genes that are involved in determining when girls ...


Study finds tall people at top of wages ladder

Other Sciences / Social Sciences

created May 17, 2009 | popularity 4.7 / 5 (3) | comments 0

Tall people earn higher wages than their vertically-challenged counterparts while being obese does not mean a slimmed-down pay packet, according to a new study in Australia.


Roos have less impact on the environment: study

Space & Earth / Environment

created May 17, 2009 | popularity 4.7 / 5 (3) | comments 3

A comparative study of the energy requirements of kangaroos and sheep has concluded roos have far less impact on the environment than once thought.


Tw studies examine medical consequences of police use of force during restraint

Medicine & Health / Other

created May 17, 2009 | popularity 2.8 / 5 (4) | comments 0

Dr. Jared Strote at the University of Washington Medical Center led a group that examined the medical records of nearly 900 patients subdued by the Seattle Police Department with a Taser over a six-year period. Less than ...


Environmental exposures may damage DNA in as few as three days

Medicine & Health / Research

created May 17, 2009 | popularity 3.3 / 5 (3) | comments 0

Exposure to particulate matter has been recognized as a contributing factor to lung cancer development for some time, but a new study indicates inhalation of certain particulates can actually cause some genes to become reprogrammed, ...


Swine flu spreads in Japan ahead of WHO meet

Medicine & Health / Diseases

created May 17, 2009 | popularity 3.3 / 5 (3) | comments 0

Japan's number of confirmed swine flu cases soared to 93 at the weekend, officials said late Sunday, as senior health officials gathered in Geneva for talks on containing the spread of the virus.




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