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| Medicine articles |
Human auditory neurons more sensitive than those of other mammals
The human ear is exquisitely tuned to discern different sound frequencies, whether such tones are high or low, near or far. But the ability of our ears pales in comparison to the remarkable knack of single neurons in our brains to distinguish between the very subtlest of frequency differences.
Skull survey could improve vehicle safety
Women's skulls are thicker than men's, but they both shrink slowly after we reach adulthood. That's the conclusion of a new imaging study of 3000 people published in the Inderscience International Journal of Vehicle Safety. The detailed results could help in the design of more effective devices for protecting the head in vehicle collisions and other accidents.
Motorcycle helmets keep riders alive, international review confirms
Fewer than half of U.S. states require every motorcycle rider — drivers and passengers — to wear a helmet; and four states have no helmet requirements whatsoever. Around the world, the same patchwork legal pattern exists.
How much you're willing to pay depends on what you were just doing
Your shopping buddy turns to you and asks, "Which one of these would you get"" Or, you're talking with your spouse about which candidate you'd like to vote for before switching on the nightly news. Turns out simply being asked to make a choice– especially if you're in a hurry or have something on your mind – will make you like the next thing you see more, says a new study from the Journal of Consumer Research. The researchers found that asking people to choose among things primed them to think about positive attributes – and caused them to be in a positive frame of mind when evaluating the next item they saw.
Portable device quickly detects early alzheimer's
The latest medications can delay the onset of Alzheimer's disease, but none are able to reverse its devastating effects. This limitation often makes early detection the key to Alzheimer's patients maintaining a good quality of life for as long as possible.
Skin care: new research into scar-free healing
New research from the University of Bristol shows that by suppressing one of the genes that normally switches on in wound cells, wounds can heal faster and reduce scarring. This has major implications not just for wound victims but also for people who suffer organ tissue damage through illness or abdominal surgery.
International consortium announces the 1000 genomes project
An international research consortium announced the 1000 Genomes Project, an ambitious effort that will involve sequencing the genomes of at least a thousand people from around the world to create the most detailed and medically useful picture to date of human genetic variation.
Vest may help understand causes of asthma attacks
Researchers at the Georgia Tech Research Institute (GTRI) have developed a sensor system that continuously monitors the air around persons prone to asthma attacks. Worn in the pockets of a vest, the new system could help researchers understand the causes of asthma attacks.
Researchers find that middle-aged misery spans the globe
Using data on 2 million people, from 80 nations, researchers from the University of Warwick and Dartmouth College in the US have found an extraordinarily consistent international pattern in depression and happiness levels that leaves us most miserable in middle age.
Blue-eyed humans have a single, common ancestor
New research shows that people with blue eyes have a single, common ancestor. A team at the University of Copenhagen have tracked down a genetic mutation which took place 6-10,000 years ago and is the cause of the eye colour of all blue-eyed humans alive on the planet today.
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New mit tool probes brain circuits
Researchers at the Picower Institute for Learning and Memory at MIT report in the Jan. 24 online edition of Science that they have created a way to see, for the first time, the effect of blocking and unblocking a single neural circuit in a living animal.
New decontamination system kills anthrax rapidly
In October 2001, letters containing anthrax spores were mailed to several news media offices and two U.S. senators, killing five people and infecting 17 others. Clearing the Senate office building of the spores with chlorine dioxide gas cost $27 million, according to the Government Accountability Office. Cleaning the Brentwood postal facility outside Washington cost $130 million and took 26 months.
Destined to lie, cheat or steal?
In an age where cheating scandals plague all levels of governments and major corporations are brought down by unethical actions, the debate about the origins and nature of how and why decisions are made play into a larger debate about genetic determinism and free will.
Accelerated head growth can predict autism before behavorial symptoms start
Children with autism have normal-size heads at birth but develop accelerated head growth between six and nine months of age, a period that precedes the onset of many behaviors that enable physicians to diagnose the developmental disorder, according to new research from the University of Washington's Autism Center.
Very young found to process fear memories in unique way
Very young brains process memories of fear differently than more mature ones, new research indicates. The findings appear in the Feb. 6 issue of The Journal of Neuroscience. The work significantly advances scientific understanding of when and how fear is stored and unlearned, and introduces new thinking on the implications of fear experience early in life.
What gives us fingertip dexterity?
Quickly moving your fingertips to tap or press a surface is essential for everyday life to, say, pick up small objects, use a BlackBerry or an iPhone. But researchers at the University of Southern California say that this seemingly trivial action is the result of a complex neuro-motor-mechanical process orchestrated with precision timing by the brain, nervous system and muscles of the hand.
New study finds why even momentary sadness increases spending
How you are feeling has an impact on your routine economic transactions, whether you're aware of this effect or not.
Dna is blueprint, contractor and construction worker for new structures
DNA is the blueprint of all life, giving instruction and function to organisms ranging from simple one-celled bacteria to complex human beings. Now Northwestern University researchers report they have used DNA as the blueprint, contractor and construction worker to build a three-dimensional structure out of gold, a lifeless material.
Irregular exercise pattern may add pounds
The consequences of quitting exercise may be greater than previously thought, according to a new study from the U.S. Department of Energy's Lawrence Berkeley National Laboratory that determined that the weight gained during an exercise hiatus can be tough to shed when exercise is resumed at a later date.
Study demonstrates effectiveness of microneedles
In what is believed to be the first peer-reviewed study of its kind involving human subjects, researchers at the University of Kentucky and the Georgia Institute of Technology have demonstrated that patches coated on one side with microscopic needles can facilitate transdermal delivery of clinically-relevant doses of a drug that normally cannot pass through the skin.
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| Quotes | By convention!
cussed Tom airily.
Cmon Scully... Itll be a nice trip through the woods-Fox Mulder
But what ... is it good for?
Engineer at IBM, 1968, commenting on the microchip.
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