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Science and research

FDA approves single-lead implantable cardiac defibrillator

Cardio med tech company Biotronik today announced Food and Drug Administration approval of the world's first implantable cardiac defibrillator that uses just one lead to sense atrial arrhythmias.

Say what?

For those unfamiliar with the mechanics of the heart, let's back up. Atrial fibrillation (AF), the most common heat arrhythmia, occurs when the electrical signals in the atria (the heart's two upper chambers) fire fast and frenetically, causing the atria to essentially quiver instead of pulse regularly, which can result in blood pooling or clotting and thus greatly increase the risk of stroke and congestive heart failure.… Read more

Researchers develop flexible, transparent image sensor

Researchers from the Institute of Computer Graphics at Johannes Kepler University in Linz, Austria, have developed a way to capture images on a flexible sheet of plastic. Unlike traditional image sensors that use circuits and other internal structures to develop an image, this new solution is fully transparent.

This is no ordinary sheet of plastic though. The sensor is a polymer film (luminescent concentrator) containing a multitude of fluorescent particles that absorb a specific wavelength of light. It then transmits this light at a longer wavelength to optical sensors at the side of the sheet, which captures it all, reconstructing … Read more

NASA launches new space tech and exploration division

NASA has suffered budget cuts and freezes the past several years, but apparently things are looking up for the U.S. space agency. Today, NASA announced that it was creating a new organizational division geared toward investing in space technology, equipment, and exploration.

"A robust technology development program is vital to reaching new heights in space -- and sending American astronauts to new destinations like an asteroid and Mars," NASA administrator Charles Bolden said in a statement. "A top priority of NASA is to invest in cross-cutting, transformational technologies. We focus on collaboration with industry and academia … Read more

Higgs Boson calculations add up to new Armageddon scenario

Anyone who thinks the end is nigh with a giant asteroid colliding into Earth may have a new apocalypse scenario to worry about.

It all boils down to the Higgs Boson particle, aka the "God particle."

Calculations that came with the likely discovery of the Higgs Boson last July also show that the particle's mass qualities could spell out the end of the universe said Fermilab theoretical physicist Joseph Lykken yesterday, according to NBC's Cosmic Log.

However, doomsdayers don't need to fret too much, the scientist also said that the likelihood of such a demise … Read more

This sheet turns your windows into mirrors

One feature on the beleaguered Boeing 787 Dreamliner is its electrochromic dimming system that lets passengers make windows on the aircraft more or less opaque at the touch of a button.

Japan's National Institute of Advanced Industrial Science and Technology (AIST) says that while these smart windows can take about 30 seconds to change, it has a new stick-on window film that can go from reflective to see-through in only 5 seconds.

The switchable mirror device can change states when a low voltage is applied. … Read more

uBiome project to sequence the bacteria that live on us

Oxford University Ph.D. student Jessica Richman, who today finished raising some $350,000 from more than 2,500 people wanting to take part in the uBiome project, isn't shying away from reality: "Yes, we are going to be sampling people's poo," she told the Guardian this week.

And for the squeamish, she offered an asterisk: "You'll only have to wipe it on the toilet paper."

The uBiome project is a "citizen science" effort to sequence the genomes of the trillions of bacteria that colonize our bodies and likely play pivotal … Read more

Nanotech 'sober pill' could one day de-drunk you

Hair of the dog? Lots of water? Cup of coffee? The quest for an effective hangover cure has never really led to a Holy Grail fix-it-all solution. What if you could counteract the impact of alcohol in your system before you ever even got to the hangover stage? Newly published research shows one potential path to the creation of a "sober pill."

We're a long way off from popping down to the local drug store and grabbing a bottle of B-Sober-Now pills, but the use of nanocapsules to reduce the blood alcohol content in mice might be the first step in that direction.… Read more

Man to get first bionic hand that can 'feel'

A man who lost his hand in an accident is due to receive the first bionic hand designed to more fully simulate the sensation of feeling.

Scheduled for later this year, the surgery will connect the bionic hand directly to the man's nervous system. The goal is for him to not only move the hand but also receive touch signals from the sensors across the hand, according to a story published Sunday by The Independent.

Specifically, the hand would be attached through electrodes connected to the median and ulnar nerves, two of the main nerves in the human arm, … Read more

New tablet app could diagnose concussions on the sidelines

It's no secret that the standard hand-eye coordination tests doctors use to monitor neuromuscular deficits -- typically when a patient is injured or as a patient ages -- can be subjective, relying on, say, descriptions of reflexes and cognitive status such as "mild," "moderate," and "severe."

So researchers at the Wyss Institute for Biologically Inspired Engineering at Harvard, the Beth Israel Medical Center, and Hebrew SeniorLife have been developing what they call a rapid neuroassessment device, nicknamed NeuroAssess, to measure neuromuscular performance quantitatively instead of qualitatively.

They've recently tested it on 150 … Read more

Just in time: Scientists propose vaporizing asteroids

The sky is totally falling.

As if it weren't enough that a meteor boomed across the Russian sky today, shattering windows and injuring about 1,000 people, an asteroid 150 feet across is about to sideswipe our planet.

Asteroid 2012 DA14, while unrelated to the meteor, is just as scary. It will graze us at just 17,200 miles from the surface, passing between Earth and our geosynchronous weather and communications satellites.

Possible asteroid strikes are no joke, and if you ask me (or the dinosaurs), they represent the biggest threat to our planet aside from human stupidity.

Fortunately, some non-stupid humans are finally getting serious about countering this threat. … Read more