Science Related

Cum - Ocak 12, 2007

Best dressed women have babies on their mind

Working with a group of 30 women aged 18 to 37, Martie Haselton of the University of California, Los Angeles, and colleagues took two full-body photographs of each woman, one close to ovulation when the woman was highly fertile, and one at a point of low fertility in the menstrual cycle.

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Paz - Ağustos 13, 2006

Breast is best, but watch out for the allergies

The researchers noticed that children who developed allergies after prolonged exclusive breastfeeding were most likely to do so during the first years of life, suggesting that environmental factors such as pollen exposure, diet and disease are the more important factors in the onset of allergies in later childhood and early adulthood.

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Çar - Ağustos 2, 2006

Discovering the nature of party people

They became so picky about who they spent time with that they quit parties with too few like-minded people and ended up at one party with all their snooty friends.

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Sal - Ağustos 1, 2006

Magic mushrooms really cause 'spiritual' experiences

It is now generally illegal to sell or possess psilocybin drugs in the US. Demonised compound But Roland Griffiths, of Johns Hopkins University School of Medicine in Baltimore, Maryland, US, and his colleagues believe there is a need to revisit the biological effects of psilocybin, which have been virtually ignored by the scientific community for about 40 years.

Posted at 09:23 AM Read More

Per - Temmuz 13, 2006

Chocolate generates electrical power

Microbiologist Lynne Mackaskie and her colleagues at the University of Birmingham in the UK have powered a fuel cell by feeding sugar-loving bacteria chocolate-factory waste.

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Big Brother eyes make us act more honestly

Biology Letters We all know the scene: the departmental coffee room, with the price list for tea and coffee on the wall and the “honesty box” where you pay for your drinks – or not, because no one is watching.\

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Paz - Mart 26, 2006

Addictive, seductive, sudoku

Sudoku is nothing short of a global phenomenon, a once-in-a-generation craze that has, within a year, caused millions of us to overshoot railway stops, sneak away from family gatherings and forgo conjugal relations, all in the hope of filling in just one more square.

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Paz - Aralık 11, 2005

The robot that thinks like you...

For its first baby steps after each reboot, SAIL's visual cortex is completely undeveloped, but within a few days the simulated neurons have self-organised into a menagerie of clusters, each with a specialised task such as identifying simple visual features like edges.

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Cmt - Aralık 10, 2005

The birth of a language

Psychologist Susan Goldin-Meadow at the University of Chicago, who has been studying 14 home signers in the US, Taiwan, Turkey and Spain, says she has also found a preference for a particular word order among home signers that cannot be down to the spoken language in the environment.

Posted at 08:55 PM Read More

Quantum bubbles are key to extreme computing

Because each qubit carries two values, a quantum computer with two qubits could carry out four parallel calculations, one with three qubits eight calculations, and so on. "I see no major technical obstacles to the system I envisage working with 100 qubits," says Yao.

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Posted at 08:23 PM Read More

Looking for alien intelligence in the computational universe

No one knows how long it will take to search the computational universe for useful answers; one of the main criticisms of Wolfram's idea is that the only way to find the eventual outcome of some programs is to run them for billions of years.

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Living camera uses bacteria to capture image

The “living camera” uses light to switch on genes in a genetically modified bacterium that then cause an image-recording chemical to darken.

Posted at 07:51 PM Read More

All in the mind

The kind of patient most likely to experience the nocebo effect of a given drug has a history of vague, difficult-to-diagnose complaints and is sure that whatever therapy is prescribed will do little to battle the problem.

Posted at 07:48 PM Read More

Coffee's effects revealed in brain scans

“Caffeine modulates a higher brain function through its effects on distinct areas of the brain,” explains Florian Koppelstätter, who carried out the research with colleagues at the Medical University at Innsbruck, Austria.

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Pzt - Kasım 21, 2005

Let chaos keep your secrets safe

To recreate the chaos you have to send the chaotic light signal made by your first laser, complete with encoded message, to a second laser that is essentially identical: made from the same batch of semiconductor by the same manufacturer and operated at the same temperature and current biases and with the same fraction of light fed back into the cavity (see Diagram).