Scientists restore memory of drugged rats, hope to do the same with people

Is there anything we can’t learn from drugged up rats? Researchers at Wake Forest University and the University of Southern California used a group of medicated rodents to demonstrate a method by which memory can be restored with the flick of a switch. The rats were outfitted with tiny, rat-sized electrodes and exposed to pharmacological substances, which caused them to forget the connection between pushing a lever and getting water. By turning the electronic switch on, the scientists restored the rats’ memory of the task — turning it off made them forget again. The next step in the process is testing the experiment out on primates and perhaps some day utilizing the research to benefit victims of strokes, Alzheimer’s, or injury-induced memory loss.

Scientists restore memory of drugged rats, hope to do the same with people originally appeared on Engadget on Sun, 19 Jun 2011 20:33:00 EDT. Please see our terms for use of feeds.

Permalink Science Daily  |  sourceUSC  | Email this | Comments

Shocker! Gamer behavior is actually quite predictable

Isn’t it curious how you always crack open a beer before settling in for some GTA? Or how you tend to put an anxious hand over your wallet when logging onto PSN? No soldier, it is not curious. Not at all. But this is: Researchers at North Carolina State University claim they’ve found a way to predict your in-game behavior with “up to 80 percent accuracy.” After analyzing the decision-making of 14,000 World of Warcraft players, they noticed that different players prefer different types of achievements. These preferred achievements clump together into statistically significant groups, known as “cliques”, even if they have nothing obvious in common. So a WoW player who likes to improve their unarmed combat skills also, for some psychological reason, tends to want points for world travel. What’s more, the researchers believe that clique-spotting can be exploited outside the rather specific world of WoW, in which case their method could prove lucrative to game designers, online retailers and pretty much anyone with an interest in predicting your next move. Want to know more? Then we predict you’ll click the PR after the break.

Continue reading Shocker! Gamer behavior is actually quite predictable

Shocker! Gamer behavior is actually quite predictable originally appeared on Engadget on Tue, 14 Jun 2011 16:47:00 EDT. Please see our terms for use of feeds.

Permalink   |   | Email this | Comments

Shocker! The internet is not egalitarian, popular forum posters have it easy

Researchers at the University of Georgia analyzed six years’ worth of Usenet posts, and you know what they discovered? Life ain’t fair. The most popular two percent of posters who started discussion threads hogged 50 percent of all replies, while everyone else struggled for attention. What made some thread-starters more attractive than others? Thankfully it wasn’t rampant flaming. The distinguishing trait was actually how factual they were: only 12 percent of posts by popular posters contained personal opinions or comments. However, posting a bit of news isn’t all it takes to win followers. In a related experiment, 200 volunteers were unleashed onto “simulated” discussion forums and their behavior revealed an even more important factor. The slightly flummoxed researchers called it a “preferential attachment”, which pulled readers towards posters who already had an excess of followers. In other words, life still ain’t fair. For a delightfully factual breakdown of the full results, check out the PR after the break.

Continue reading Shocker! The internet is not egalitarian, popular forum posters have it easy

Shocker! The internet is not egalitarian, popular forum posters have it easy originally appeared on Engadget on Mon, 13 Jun 2011 11:11:00 EDT. Please see our terms for use of feeds.

Permalink PhysOrg  |   | Email this | Comments

Scientists produce laser light from human kidney cells, we get in touch with our inner Cyclops

Scientists have just created living laser light out of a human cell and some jellyfish protein, but it’s not quite as terrifying as it sounds. Developed by Malte Gather and Seok Hyun Yun at Massachusetts General Hospital, the new technique revolves around something known as green fluorescent protein (GFP) — a naturally glowing molecule found in jellyfish that can be used to illuminate living material. After genetically engineering a human kidney cell to express this protein, Gather and Yun wedged it between two mirrors in an inch-long cylinder, filled with a GFP solution. Then, they infused the system with blue light, until the cell began to emit its own pulses of bright green laser light. Researchers also noticed that the cell could regenerate any destroyed fluorescent proteins, potentially paving the way for scientists to conduct light-based therapy and medical imaging without an external laser source. Hit the source link for more information, though you’ll need a subscription to Nature Photonics to access the full article.

Scientists produce laser light from human kidney cells, we get in touch with our inner Cyclops originally appeared on Engadget on Mon, 13 Jun 2011 07:01:00 EDT. Please see our terms for use of feeds.

Permalink BBC  |  sourceNature Photonics  | Email this | Comments

BinCam posts photos of your trash on Facebook, shames you into recycling (video)

BinCam

We’re not sure how comfortable we are with everyone online being able to examine our, as the Brits would say, “rubbish.” But our friends across the pond are apparently ok with it, seeing as it’s the home of BinCam — a research project out of Newcastle University that posts pictures of people’s trash on Facebook. At the heart of the experiment is an Xperia X10 Mini strapped under the lid of a garbage can that automatically snaps a photo every time it’s opened and closed. That image is then uploaded to the BinCam Facebook app, where you’re showered with public shame for failing to sort your recyclables or celebrated for not wasting food. And, just in case you think this is all an elaborate joke, check out the BBC report after the break the the study of how it affected student behavior at the source.

Continue reading BinCam posts photos of your trash on Facebook, shames you into recycling (video)

BinCam posts photos of your trash on Facebook, shames you into recycling (video) originally appeared on Engadget on Fri, 10 Jun 2011 01:03:00 EDT. Please see our terms for use of feeds.

Permalink BBC  |  sourceBinCam  | Email this | Comments

IBM outs integrated circuit that’s made from wafer-size graphene, smaller than a grain of salt

Lest you don’t care what your circuits are made of, listen up: graphene’s the thinnest electrical material, comprising just a single atomic layer. In addition to its electrical, thermal, mechanical, and optical properties, researchers dig it because it has the potential to be less expensive, more energy-efficient, and more compact than your garden-variety silicon. So imagine IBM’s delight when a team of company researchers built the first circuit that fits all the components, including inductors and a graphene transistor, on a single wafer — a setup that consumes less space than a grain of salt. The advantage, scientists say, is better performance than what you’d get from a circuit combining a graphene transistor with external components. In fact, the researchers got the circuit’s broadband frequency mixer to operate at 10GHz , a feat that could have implications for wireless gadgets running the gamut from Bluetooth headsets to RFID tags. That’s all just a layman’s explanation, of course — check out the latest issue of Science for the full paper in all of its technical glory.

IBM outs integrated circuit that’s made from wafer-size graphene, smaller than a grain of salt originally appeared on Engadget on Thu, 09 Jun 2011 15:00:00 EDT. Please see our terms for use of feeds.

Permalink   |  sourceScience  | Email this | Comments

Periodic Table welcomes two new, ultraheavy elements, jury still out on the names

If you bump in to the Periodic Table of Elements today, be sure to give it a hearty Mazel Tov, because it’s just welcomed two new members to the family. Yesterday, the International Union of Pure and Applied Chemistry (IUPAC) officially recognized elements 114 and 116, crediting the discovery to scientists from Russia’s Joint Institute for Nuclear Research and the Lawrence Livermore National Laboratory, in California. Boasting atomic masses of 289 and 292, respectively, the new man-made additions are now the heaviest elements on record, seizing the belt from copernicium (285) and roentgenium (272). As with most heavyweights, however, both decay within less than a second, making it difficult for researchers to get a grasp of their chemical properties. Nevertheless, both apparently had enough credibility to survive IUPAC’s three-year review process, paving the way for the real fun to begin. At the moment, 114 and 116 are known, rather coldly, as ununquadium and ununhexium, respectively, though their names will eventually be jazzed up — sort of. The Russian team has already proposed flerovium for 114 (after Soviet nuclear physicist Georgy Flyorov), and, for 116, the Moscow-inspired moscovium, which sounds more like an after shave for particularly macho chemists. IUPAC will have the final say on the matter, though one committee member said any proposed names are likely to be approved, as long as “it’s not something too weird.” Head past the break for a full, and somewhat obtuse PR.

Continue reading Periodic Table welcomes two new, ultraheavy elements, jury still out on the names

Periodic Table welcomes two new, ultraheavy elements, jury still out on the names originally appeared on Engadget on Wed, 08 Jun 2011 16:22:00 EDT. Please see our terms for use of feeds.

Permalink PhysOrg  |   | Email this | Comments

GPS stations trace nuclear explosions, summon end to underground mushroom clouds?

A team of researchers recently revealed findings that could turn GPS stations into tools for detecting illegal nuclear explosions. According to a report, being presented to the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) this week, the group found that nearby GPS stations showed a change in ionospheric electron density, following a 2009 nuclear test performed by North Korea. That discovery led to the realization that the same technology we use to track everything from dogs to children can more accurately detect nuclear explosions — even when they take place underground. By measuring the time it takes for a resulting shockwave to reach and affect surrounding stations, researchers can accurately determine the origin of the blast. The team is currently seeking funding to further its explosive (sorry, we had to) research.

GPS stations trace nuclear explosions, summon end to underground mushroom clouds? originally appeared on Engadget on Wed, 08 Jun 2011 06:22:00 EDT. Please see our terms for use of feeds.

Permalink   |  sourceOhio State University  | Email this | Comments

Newest Kinect hack: a grocery cart that loyally follows disabled shoppers (video)

Microsoft’s Kinect is the gift that keeps on giving for hackers, spawning everything from glasses-free teleconferencing to Tesla coil manipulation to uh, well, Android dance parties. But Luis de Matos’s wi-Go project is one of the most socially conscious we’ve seen: it adds a laptop and (despite its name) a Kinect to a shopping cart, enabling the cart to follow a wheelchair user. Improving on the B.O.S.S. bot we saw a half-decade ago, the wi-Go could allow anyone — including the disabled or elderly — to shop independently, regardless of physical capability. De Matos doesn’t offer many technical details, but see the video above for a before-and-after demonstration.

Newest Kinect hack: a grocery cart that loyally follows disabled shoppers (video) originally appeared on Engadget on Sun, 05 Jun 2011 02:10:00 EDT. Please see our terms for use of feeds.

Permalink Kinect Hacks  |  sourceLuis de Matos (Vimeo)  | Email this | Comments

Scientist cooks up adjustable strength metals

Adjustable strength metal

As you may know, crafting a katana is a delicate process that involves carefully constructing a razor-sharp high-carbon edge around a soft shock-absorbent core. One day though, smiths and forging fires could be replaced by electrode-wielding mad-scientists, with the technology to selectively harden and soften metal at will. At least that’s what we envisioned when we read about Jörg Weißmüller’s breakthrough research in the field of nanomaterials. The German scientist discovered that by placing precious metals in acid he could create tiny ducts through corrosion. Once those channels are flooded with a conductive liquid, electrical currents can be used to harden the material and, if you change your mind about the brittle results, the effect can easily be reversed to make it soft again. The tech could eventually lead to self-healing vehicle armor or scratch-resistant cellphones — but, really, we just want to zap our way to a high-quality samurai sword.

Scientist cooks up adjustable strength metals originally appeared on Engadget on Sat, 04 Jun 2011 01:02:00 EDT. Please see our terms for use of feeds.

Permalink   |  sourcePhysorg  | Email this | Comments