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Quantum computers take step toward practicality with demonstration of new device

May 09, 2008 | User rating: 4.6 / 5 after 39 vote(s) | pda version

Computers based on the powerful properties of quantum mechanics have the potential to revolutionize information technology and security, but for decades they have remained more theoretical than practical, ...


EBay's PayPal rule in Australia draws fire

May 09, 2008 | User rating: 3 / 5 after 2 vote(s) | pda version

(AP) -- EBay Inc. is exploring whether to require customers to use its online payment service PayPal, a move that has angered users and prompted antitrust scrutiny in Australia, where a PayPal-only rule takes ...


New study finds number of fat cells stays constant throughout life

May 09, 2008 | User rating: 4.3 / 5 after 15 vote(s) | pda version

The radioactive carbon-14 produced by above-ground nuclear testing in the 1950s and '60s has helped researchers determine that the number of fat cells in a human's body, whether lean or obese, is established ...


New cost-effective means to reconstruct virus populations

May 09, 2008 | pda version

Researchers from the United States and Switzerland have developed mathematical and statistical tools for reconstructing viral populations using pyrosequencing, a novel and effective technique for sequencing DNA. They describe ...


Scientists demonstrate method for integrating nanowire devices directly onto silicon

May 08, 2008 | User rating: 4.1 / 5 after 26 vote(s) | pda version

Applied scientists at Harvard University in collaboration with researchers from the German universities of Jena, Gottingen, and Bremen, have developed a new technique for fabricating nanowire photonic and ...


Researchers identify pressure effects on nanomaterials

May 08, 2008 | User rating: 4.5 / 5 after 8 vote(s) | pda version

Transistors, lasers and solar-energy conversion devices may be easier to manipulate because of recent research by Lawrence Livermore National Laboratory scientists. The researchers defined the role high pressure ...


Researchers identify photosynthetic dimmer switch

May 08, 2008 | User rating: 4.4 / 5 after 8 vote(s) | pda version

In a study of the molecular mechanisms by which plants protect themselves from oxidation damage should they absorb too much sunlight during photosynthesis, a team of researchers has discovered a molecular ...


Federal polar bear research critically flawed, says new study

May 08, 2008 | User rating: 4.4 / 5 after 5 vote(s) | pda version

Research done by the U.S. Department of the Interior to determine if global warming threatens the polar bear population is so flawed that it cannot be used to justify listing the polar bear as an endangered species, according ...


Keeping yields, profits and water quality high

May 08, 2008 | User rating: 4.7 / 5 after 3 vote(s) | pda version

One of the key questions facing agriculturalists in the 21st century is how to produce adequate amounts of food and farm income while protecting environmental quality. Diversified, low-external-input (LEI) farming systems ...


Breast cancer tumors grow faster in younger women

May 08, 2008 | pda version

A new approach to estimating tumour growth based on breast screening results from almost 400,000 women is published today BioMed Central’s open access journal, Breast Cancer Research. This new model can also estimate ...


Researchers find gene location that gives rise to neuroblastoma, an aggressive childhood cancer

May 07, 2008 | User rating: 5 / 5 after 1 vote(s) | pda version

Using advanced gene-hunting technology, an international team of researchers has for the first time identified a chromosome region that is the source of genetic events that give rise to neuroblastoma, an often fatal childhood ...


Common herbicide disrupts human hormone activity in cell studies

May 07, 2008 | User rating: 4.8 / 5 after 6 vote(s) | pda version

A common weedkiller in the U.S., already suspected of causing sexual abnormalities in frogs and fish, has now been found to alter hormonal signaling in human cells, scientists from the University of California San Francisco ...


Silicon's effect on sunflowers studied

May 07, 2008 | User rating: 3.7 / 5 after 3 vote(s) | pda version

Vibrant, showy sunflowers are revered worldwide for their beauty and versatility. While many varieties of sunflower are grown specifically for their nutritional benefits, ornamental sunflowers have become ...


Workers Who Feel Trusted Will Boost Sales and Provide Better Customer Service: Study

May 07, 2008 | User rating: 3 / 5 after 2 vote(s) | pda version

Companies that communicate their trust to employees will see superior sales and customer service performance, says a psychology researcher from Sauder School of Business at the University of British Columbia.


Chemists measure chilli sauce hotness with nanotubes

May 07, 2008 | User rating: 4.5 / 5 after 19 vote(s) | pda version

Oxford chemists have found a way of using carbon nanotubes to judge the heat of chilli sauces. The technology might soon be available commercially as a cheap, disposable sensor for use in the food industry.


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