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89 percent of children's food products provide poor nutritional quality

July 14, 2008 | User rating: 4.3 / 5 after 31 vote(s) | User comments: 2

Nine out of ten regular food items aimed specifically at children have a poor nutritional content – because of high levels of sugar, fat or sodium - according to a detailed study of 367 products published in the July issue ...


Nanoparticles + light = dead tumor cells

July 29, 2008 | User rating: 4.7 / 5 after 29 vote(s) | User comments: 3

Medical physicists at the University of Virginia have created a novel way to kill tumor cells using nanoparticles and light. The technique, devised by Wensha Yang, an instructor in radiation oncology at the University of ...


Historian predicts the end of 'science superpowers'

July 23, 2008 | User rating: 4.1 / 5 after 47 vote(s) | User comments: 4

Is the sun beginning to set on America's scientific dominance? Much like the scientific superpowers of France, Germany and Britain in centuries' past, the United States has a diminishing lead over other nations in financial ...


No evidence to support 'organic is best'

August 07, 2008 | User rating: 3.6 / 5 after 34 vote(s) | User comments: 22

New research in the latest issue of the Society of Chemical Industry's (SCI) Journal of the Science of Food and Agriculture shows there is no evidence to support the argument that organic food is better than food grown ...


Passive learning imprints on the brain just like active learning

July 14, 2008 | User rating: 4.6 / 5 after 24 vote(s) | User comments: 1

It's conventional wisdom that practice makes perfect. But if practicing only consists of watching, rather than doing, does that advance proficiency? Yes, according to a study by Dartmouth researchers.


Researchers develop next-generation computer antivirus system

August 06, 2008 | User rating: 4.6 / 5 after 28 vote(s) | User comments: 1

(PhysOrg.com) -- Antivirus software on your personal computer could become a thing of the past thanks to a new "cloud computing" approach to malicious software detection developed at the University of Michigan. ...


Hackers get hold of critical Internet flaw (Update)

July 24, 2008 | User rating: 4.2 / 5 after 18 vote(s) | User comments: 5

Internet security researchers on Thursday warned that hackers have caught on to a "critical" flaw that lets them control traffic on the Internet.


Pittsburgh cancer center warns of cell phone risks

July 24, 2008 | User rating: 3.5 / 5 after 39 vote(s) | User comments: 30

(AP) -- The head of a prominent cancer research institute issued an unprecedented warning to his faculty and staff Wednesday: Limit cell phone use because of the possible risk of cancer.


Advance brings low-cost, bright LED lighting closer to reality

July 17, 2008 | User rating: 4.8 / 5 after 68 vote(s) | User comments: 19

Researchers at Purdue University have overcome a major obstacle in reducing the cost of "solid state lighting," a technology that could cut electricity consumption by 10 percent if widely adopted.


Researchers Produce Best-Yet Dye-Based Solar Cells

July 31, 2008 | User rating: 4.5 / 5 after 61 vote(s) | User comments: 8

In work that may help solar panels become a more viable source of mainstream power, a research group has created a dye-based solar cell with a high efficiency and high stability, and that lacks the volatile chemicals used ...


Material may help autos turn heat into electricity

July 24, 2008 | User rating: 4.5 / 5 after 60 vote(s) | User comments: 19

Researchers have invented a new material that will make cars even more efficient, by converting heat wasted through engine exhaust into electricity. In the current issue of the journal Science, they describe a material ...


Dutch researchers take flight with three-gram 'dragonfly'

July 22, 2008 | User rating: 4.7 / 5 after 35 vote(s) | User comments: 5

(PhysOrg.com) -- On Wednesday 23 July, TU Delft will be presenting the minute DelFly Micro air vehicle. This successor to the DelFly I and II weighs barely 3 grams, and with its flapping wings is very similar ...


New technique to compress light could open doors for optical communications

July 30, 2008 | User rating: 4.4 / 5 after 46 vote(s) | User comments: 1

(PhysOrg.com) -- Scientists at the University of California, Berkeley, have devised a way to squeeze light into tighter spaces than ever thought possible, potentially opening doors to new technology in the fields of optical ...


Gummy bears that fight plaque

July 25, 2008 | User rating: 4.6 / 5 after 17 vote(s) | User comments: 4

The tooth-protecting sugar substitute xylitol has been incorporated into gummy bears to produce a sweet snack that may prevent dental problems. Research published today in the open access journal BMC Oral Health describes ...


Moon water discovered: Dampens Moon-formation theory

July 09, 2008 | User rating: 4.8 / 5 after 63 vote(s) | User comments: 14

Using new techniques, scientists have discovered for the first time that tiny beads of volcanic glasses collected from two Apollo missions to the Moon contain water. The researchers found that, contrary to ...


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