Tuesday, May 19, 2009
Sunday, May 10, 2009
Friday, May 8, 2009
ABBA have been partially reformed
ABBA stars Benny Andersson and Björn Ulvaeus are set to premiere their first newly written pop song in 15 years.
The song, called 'Story Of A Heart', will be released on July 6. It is available as part of a 14-track album by Andersson's 16-strong group The Benny Andersson Band.
Vocals on the track have been translated into English, and are sung by Swedish star Helen Sjöholm. As well as the Andersson/Ulvaeus song, 'Story Of A Heart' takes in Swedish folk music, polka, waltzes and Celtic folk.
The Benny Andersson Band have also announced their first UK performance, to take place at London's Hampstead Heath on July 4 as part of the Sweden On Stage festival. No tickets are required for the event.
Estrogen controls how the brain processes sound
Scientists at the University of Rochester have discovered that the hormone estrogen plays a pivotal role in how the brain processes sounds.
The findings, published in today's issue of The Journal of Neuroscience, show for the first time that a sex hormone can directly affect auditory function, and point toward the possibility that estrogen controls other types of sensory processing as well. Understanding how estrogen changes the brain's response to sound, say the authors, might open the door to new ways of treating hearing deficiencies.
Previous studies have hinted at a connection between estrogen and hearing in women who have low estrogen, such as often occurs after menopause, says Pinaud. No one understood, however, that estrogen was playing such a direct role in determining auditory functions in the brain, he says. "Now it is clear that estrogen is a key molecule carrying brain signals, and that the right balance of hormone levels in men and women is important for reasons beyond its role as a sex hormone," says Raphael Pinaud, assistant professor of brain and cognitive sciences at the University of Rochester and lead author of the study.
The findings, published in today's issue of The Journal of Neuroscience, show for the first time that a sex hormone can directly affect auditory function, and point toward the possibility that estrogen controls other types of sensory processing as well. Understanding how estrogen changes the brain's response to sound, say the authors, might open the door to new ways of treating hearing deficiencies.
Previous studies have hinted at a connection between estrogen and hearing in women who have low estrogen, such as often occurs after menopause, says Pinaud. No one understood, however, that estrogen was playing such a direct role in determining auditory functions in the brain, he says. "Now it is clear that estrogen is a key molecule carrying brain signals, and that the right balance of hormone levels in men and women is important for reasons beyond its role as a sex hormone," says Raphael Pinaud, assistant professor of brain and cognitive sciences at the University of Rochester and lead author of the study.
Tuesday, May 5, 2009
Touch Screens with Pop-up Buttons
Touch-screen technology has become wildly popular, thanks to smart phones designed for nimble fingers. But most touch screens have a major drawback: you need to keep a close eye on the screen as you tap, to make sure that you hit the right virtual buttons. As touch screens become more popular in other contexts, such as in-car navigation and entertainment systems, this lack of sensory feedback could become a dangerous distraction.
Now researchers at Carnegie Mellon University have developed buttons that pop out from a touch-screen surface. The design retains the dynamic display capabilities of a normal touch screen but can also produce tactile buttons for certain functions.
Graduate student Chris Harrison and computer-science professor Scott Hudson have built a handful of proof-of-concept displays with the morphing buttons. The screens are covered in semitransparent latex, which sits on top of an acrylic plate with shaped holes and an air chamber connected to a pump. When the pump is off, the screen is flat; when it's switched on, the latex forms concave or convex features around the cutouts, depending on negative or positive pressure.
To illuminate the screens and give them multitouch capabilities, the researchers use projectors, infrared light, and cameras positioned below the surface. The projectors cast images onto the screens while the cameras sense infrared light scattered by fingers at the surface.
Simpler systems, such as those that use a flexible material like latex and a pneumatic pump, have also been explored by researchers in the past. However, these systems haven't had all the capabilities of the Carnegie Mellon project, Harrison says. He explains that the display is the first to combine moving parts (the pop-up buttons), display dynamic information, and be touch sensitive. Other projects and products usually achieve two of these three criteria, he says.
Now researchers at Carnegie Mellon University have developed buttons that pop out from a touch-screen surface. The design retains the dynamic display capabilities of a normal touch screen but can also produce tactile buttons for certain functions.
Graduate student Chris Harrison and computer-science professor Scott Hudson have built a handful of proof-of-concept displays with the morphing buttons. The screens are covered in semitransparent latex, which sits on top of an acrylic plate with shaped holes and an air chamber connected to a pump. When the pump is off, the screen is flat; when it's switched on, the latex forms concave or convex features around the cutouts, depending on negative or positive pressure.
To illuminate the screens and give them multitouch capabilities, the researchers use projectors, infrared light, and cameras positioned below the surface. The projectors cast images onto the screens while the cameras sense infrared light scattered by fingers at the surface.
Simpler systems, such as those that use a flexible material like latex and a pneumatic pump, have also been explored by researchers in the past. However, these systems haven't had all the capabilities of the Carnegie Mellon project, Harrison says. He explains that the display is the first to combine moving parts (the pop-up buttons), display dynamic information, and be touch sensitive. Other projects and products usually achieve two of these three criteria, he says.
The next Big Thing - Friend Feed
Paul Buchheit built the first version of Gmail in one day. Then he built the first prototype of Google's contextual advertising service Adsense, in one day as well. Now he's working on a much-watched startup called FriendFeed that he believes just brought to market the next big form of communication online: flowing, multi-person, real-time conversations.
"The open, realtime discussions that occur on FriendFeed," he says, "are going to become a major new communication medium on the same level as email, IM and blogging." That's a pretty ambitious claim, but Buchheit has the credibility to make it.
Things are changing fast at FriendFeed. Buchheit says that the company believes aggregation to be less important than real time conversation. "The open, realtime discussions that occur on FriendFeed are going to become a major new communication medium on the same level as email, IM and blogging. The aggregation component of FriendFeed is a convinient feature and a component of that openness, but not as central as the discussions."
Do you buy that? I'm not sure. But if anyone can lead the charge against incumbent technologies with a new paradigm that combines powerful richness and ease of use - Paul Buchheit might be that person. He did it with Gmail, now time will tell if he can do it with FriendFeed.
"The open, realtime discussions that occur on FriendFeed," he says, "are going to become a major new communication medium on the same level as email, IM and blogging." That's a pretty ambitious claim, but Buchheit has the credibility to make it.
Things are changing fast at FriendFeed. Buchheit says that the company believes aggregation to be less important than real time conversation. "The open, realtime discussions that occur on FriendFeed are going to become a major new communication medium on the same level as email, IM and blogging. The aggregation component of FriendFeed is a convinient feature and a component of that openness, but not as central as the discussions."
Do you buy that? I'm not sure. But if anyone can lead the charge against incumbent technologies with a new paradigm that combines powerful richness and ease of use - Paul Buchheit might be that person. He did it with Gmail, now time will tell if he can do it with FriendFeed.
Lithium in water 'curbs suicide'
Drinking water which contains the element lithium may reduce the risk of suicide, a Japanese study suggests.
Researchers examined levels of lithium in drinking water and suicide rates in the prefecture of Oita, which has a population of more than one million.
The suicide rate was significantly lower in those areas with the highest levels of the element, they wrote in the British Journal of Psychiatry.
High doses of lithium are already used to treat serious mood disorders.
But the team from the universities of Oita and Hiroshima found that even relatively low levels appeared to have a positive impact of suicide rates.
Levels ranged from 0.7 to 59 micrograms per litre. The researchers speculated that while these levels were low, there may be a cumulative protective effect on the brain from years of drinking this tap water.
Sophie Corlett, external relations director at mental health charity Mind said the research "certainly merits more investigation.
"We already know that lithium can act as a powerful mood stabiliser for people with bipolar disorder, and treating people with lithium is also associated with lower suicide rates.
"However, lithium also has significant and an unpleasant side effects in higher doses, and can be toxic. Any suggestion that it should be added, even in tiny amounts, to drinking water should be treated with caution and researched very thoroughly."
Researchers examined levels of lithium in drinking water and suicide rates in the prefecture of Oita, which has a population of more than one million.
The suicide rate was significantly lower in those areas with the highest levels of the element, they wrote in the British Journal of Psychiatry.
High doses of lithium are already used to treat serious mood disorders.
But the team from the universities of Oita and Hiroshima found that even relatively low levels appeared to have a positive impact of suicide rates.
Levels ranged from 0.7 to 59 micrograms per litre. The researchers speculated that while these levels were low, there may be a cumulative protective effect on the brain from years of drinking this tap water.
Sophie Corlett, external relations director at mental health charity Mind said the research "certainly merits more investigation.
"We already know that lithium can act as a powerful mood stabiliser for people with bipolar disorder, and treating people with lithium is also associated with lower suicide rates.
"However, lithium also has significant and an unpleasant side effects in higher doses, and can be toxic. Any suggestion that it should be added, even in tiny amounts, to drinking water should be treated with caution and researched very thoroughly."
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