Sunday 13 July 2014

Cloud Lamp Brings Thunder and Lightning Inside



Interiors designers frequently speak about bringing the indoors outside to expand the living space. This designer wants to bring the outside in.

Richard Clarkson has conceived Cloud, a computer-controlled lamp that creates an audio-visual sensation for the homeowner. When a hidden sensor detects the motion of people around it, the lamp flashes and booms in realistic thundercloud manner.

In addition to bringing the weather indoors — sans rain — users can stream music through the fiber-filled cloud via a Bluetooth-compatible device. And the lights are able to change colors and brightness to adjust to your mood.
The Cloud is not for the budget-conscious. It costs $3,360 for the tricked-out model, which has a wireless remote, color-changing lights, two speakers plus a subwoofer and the motion detection. An additional $240 will get you a satellite add-on that makes the visual aspects of Cloud more realistic.

A less expensive version goes for $960 but doesn’t include the bells and whistles.

Credit: Richard Clarkson Studio

Beware the Cloned App, They may contain Malware



Cybercriminals can take advantage of the popularity of an app by creating a clone, which can extract personal data or even allow an attack to gain control of the device.

Malicious software is increasingly making its way into mobile phones through "cloned" versions of popular apps, and software weaknesses in legitimate ones, security researchers said Tuesday.

McAfee Labs said in its quarterly threat assessment that weaknesses in app security are becoming a growing problem for owners of mobile devices. In some cases, cybercriminals can take advantage of the popularity of an app by creating a clone, which can extract personal data or even allow an attack to gain control of the device.

This was the case with "Flappy Birds," a mobile game which saw a meteoric rise but was later withdrawn by its creator. McAfee Labs sampled 300 Flappy Bird clones and found that almost 80 percent contained malware.

"Some of the behavior we found includes making calls without the user's permission; sending, recording, and receiving SMS messages; extracting contact data; and tracking geolocation. In the worst cases, the malware gained root access, which allows uninhibited control of anything on the mobile device including confidential business information," the report said.

The McAfee report said some legitimate apps have security flaws which can be exploited by hackers. The researchers said they discovered an Android trojan "which exploits an encryption method weakness in the popular messaging app WhatsApp" and then steals conversations and pictures stored on the device.

"Although this vulnerability has now been fixed, we can easily imagine cybercriminals continuing to look for other flaws in this well-known app," the report said.

The researchers also said they identified malware that can steal money from a digital wallet. One of the malware programs identified "is disguised as an update for Adobe Flash Player or another legitimate utility app," and can take over a digital wallet to send a money transfer to the attacker's server.

Monday 7 July 2014

Elusive On/Off Switch Found for Human Consciousness



When I was a child about nine years old or so, I embarked on a mission to discover the barrier between waking and sleeping. I believed that if I concentrated each night before falling asleep, I would recognize the moment I slipped out of consciousness and into dream. I never found the precise line — although I did, unintentionally, teach myself to lucid dream.

But now there is research showing that the brain does have an on/off switch that triggers unconsciousness. Mohamad Koubeissi at the George Washington University in Washington DC and his colleagues describe for the first time a way to switch off consciousness by electrically stimulating a part of the brain called the claustrum.

Their accidental discovery could lead to a deeper understanding of a fundamental mystery of the human brain; that is, how conscious awareness arises.

The discovery came while the researchers were studying a woman who has epilepsy. During a procedure, they used deep brain electrodes to record signals from different parts of her brain in order to determine where here seizures were originating. One electrode was place next to the claustrum, a thin, sheet-like structure underneath the neocortex. Although this area has never been electrically stimulated before, it had been implicated in the past as a possible control center for consciousness by neuroscientist Francis Crick, who identified the structure of DNA, and his colleague Christof Koch of the Allen Institute for Brain Science in Seattle.

Koubeissi and his team found that Crick and Koch might have been on to something. When they stimulated the area with electrical impulses from the brain electrodes, the woman stopped reading, stared blankly into space and didn’t respond to auditory or visual commands. Her breathing slowed as well. She had lost consciousness. When the scientists turned off the electrical stimuli, she immediately regained consciousness with no memory of blanking out. Additional attempts were tried over two days and each time, the same thing happened.

New Scientist reported on the results and in the article Koubeissi says he thinks the claustrum indeed plays a vital role in triggering conscious. “I would liken it to a car,” he told

“A car on the road has many parts that facilitate its movement – the gas, the transmission, the engine – but there’s only one spot where you turn the key and it all switches on and works together. So while consciousness is a complicated process created via many structures and networks – we may have found the key.”

One researcher, Anil Seth, who studies consciousness at the University of Sussex, UK, pointed out that the woman in the study had had part of her hippocampus removed earlier as a way to treat her epilepsy, so she doesn’t represent a “normal” brain.

Additional research is needed. But the results could open wide a door on one of the most mysterious aspects of existence. We could determine once and for all what living creatures are aware of themselves and the world around them.

Credit: PASIEKA/Science Photo Library/Corbis

Thursday 19 June 2014

Algae Turns Its Internal Quantum Computer On and Off


 
Photosynthetic algae make the most of the energy they receive and then deliver that energy from leaves with near perfect efficiency.
 
Scientists have shown that certain algae which use quantum effects to optimize photosynthesis are also capable of switching it off. It's a discovery that could lead to highly efficient organic solar cells and quantum-based electronics.
Like quantum computers, some organisms are capable of scanning all possible options in order to choose the most efficient path or solution. For plants and some photosynthetic algae, this means the ability to make the most of the energy they receive and then deliver that energy from leaves with near perfect efficiency. This effect, called quantum decoherence, is what allows some algae to survive in very low levels of light.

Recently, scientists from the UNSW School of Physics studied one of these algae, a tiny single-celled organism called cryptophytes. They typically live at the bottom of pools of water, or under thick ice, where light is scarce. The researchers found that there's a class of cryptophytes in which quantum decoherence is switched off, and it's on account of a single genetic mutation that alters the shape of a light-harvesting protein.
In quantum mechanics, a system is coherent when all quantum waves are in step with each other. When it's coherent, it can exist in many different states simultaneously, an effect known as superposition.
The researchers used X-ray crystallography to determine the crystal structure of the light-harvesting complexes from three different species. Two cryptophyte species had a mutation that led to the insertion of an extra amino acid that changes the structure of the protein complex, which disrupts decoherence.

Original article appeared on iO9; all rights reserved.