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Researchers Engineer a Mightier Mouse PDF Print E-mail
Wednesday, 16 November 2011 02:24

http://www.technologyreview.com/files/76655/5C_x220.jpgThe results could lead to better treatments for diabetes and muscle diseases in humans.

Mice that grow larger muscles and can run for twice as long as their unaltered littermates before tiring could point toward new treatments for the muscle loss that can occur with aging.  

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The Quasicrystal Laureate PDF Print E-mail
Monday, 17 October 2011 18:35

Nobel Prize winner Dan Shechtman discusses the potential uses for quasicrystals.

Dan Shechtman, the Philip Tobias professor of materials engineering at the Haifa Technion Israel Institute of Technology, was awarded the 2011 Nobel Prize in Chemistry last week for his discovery of quasicrystals—a form of matter with an atomic structure that was previously thought impossible.

In 1982, Shechtman discovered a new atomic structure when studying a rapidly cooled mix of aluminum and manganese.

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Smart-Phone App Tracks Heart Rate PDF Print E-mail
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Monday, 17 October 2011 18:29

Researchers show that a smart phone can measure some vital signs accurately and conveniently.

A new smart-phone app can take your pulse and measure your breathing simply by detecting subtle changes in skin color. All you need to do is hold an index finger over a smart phone's video camera for a few minutes.

Earlier this year, researchers from MIT's Media Lab showed that a computer could reliably measure heart rate using just a mirror and a webcam.

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Mouthpieces Gather Impact Data from Football Players PDF Print E-mail
Thursday, 13 October 2011 21:13

Stanford researchers think the wireless mouth guards will be better than specialized helmets at measuring head injuries.

Despite growing concern over the long-term consequences of head injuries in contact sports, researchers still aren't sure how different types of blows affect the brain.

Now a team at Stanford University is employing sensor-laden mouth guards to gauge the effects of head injuries in football players. The researchers plan to expand their research to other sports, including women's lacrosse and hockey.

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Low-Cost Tablet Runs on Three Watts of Power PDF Print E-mail
Tuesday, 11 October 2011 07:58

Designed to teach math to students in poor countries, the device will be the first to use a new energy-efficient computing strategy.

After a year of testing in a remote village in India, researchers are ready to scale up production of an ultra-low-power $35 tablet called the I-slate.

The I-slate is designed to teach math and other subjects to students whose schools lack electricity or to students who don't have access to teachers at all. The device will enter full-scale production next year, and will be the first device to apply a low-power technology called probabilistic CMOS (complementary metal-oxide semiconductor) to achieve a longer battery life.

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A Simple Way to Boost Battery Storage PDF Print E-mail
Tuesday, 11 October 2011 07:51

A stretchy binder material that's compatible with existing factories could help electric cars and portable electronics go 30 percent longer.

Lithium-ion battery electrodes bound together by a new highly conductive material have a much greater storage capacity—a development that could eventually increase the range of electric cars and the life of smart-phone batteries without increasing their cost. Unlike many high-capacity electrodes developed over the last few years, these can be made using the equipment already found in today's battery factories.

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Device Keeps Power-Gobbling Gadgets in Check PDF Print E-mail
Friday, 07 October 2011 03:50

The Modlet lets you monitor your power usage via mobile device, and turn off appliances remotely.

Electronics and appliances waste a lot of energy when they're plugged in but not being used. There's even a term for all that waste—"vampire power." A home entertainment center in standby mode, for example, can draw as much electricity as a refrigerator.

A range of new devices offer to help you manage this problem. The latest is ThinkEco's Modlet, a gizmo little bigger than a "wall wart"-style plug that packs enough brains to continuously monitor the energy usage of any device plugged into it.

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New Battery Could Be Just What the Grid Ordered PDF Print E-mail
Tuesday, 04 October 2011 02:19

A Pittsburgh company says its battery has the long life and cheap cost needed to be practical for energy storage.

Utilities need cheap, long-lasting ways to store the excess energy produced by power plants, especially as intermittent power from solar and wind farms is added to the mix. Unfortunately, the batteries available for grid-level storage are either too expensive or don't last for the thousands of cycles needed to make them cost-effective.

A new battery developed by Aquion Energy in Pittsburgh uses simple chemistry—a water-based electrolyte and abundant materials such as sodium and manganese—and is expected to cost $300 for a kilowatt-hour of storage capacity, less than a third of what it would cost to use lithium-ion batteries.

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How the Health-Care System Slows Mobile Medical Technology PDF Print E-mail
Tuesday, 04 October 2011 02:13

Under a fee-for-service structure, doctors aren't motivated to embrace innovation.

The advent of cheaper sensors and wireless transmitters, along with ubiquitous computing power in the form of smart phones, is making it easier and easier for patients with chronic diseases to track their conditions at home. But many health-care providers seem reluctant to adopt these technologies.

Experts say this is, in large part, because of the reimbursement system in U.S. health care, where physicians are paid for each test or office visit they provide.

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Peak Oil Debunked PDF Print E-mail
Thursday, 29 September 2011 21:56

Daniel Yergin's new book is a valuable guide to how energy drives the world's economy.

The timing of Daniel Yergin's new book, The Quest: Energy, Security, and the Remaking of the Modern World, could hardly be better. With oil prices remaining high, with new sources of natural gas and oil being exploited around the world, and with demand for energy expected to reach new highs over the next several decades, Yergin sets out to explain the history, economics, and politics behind the world's continuing love affair with fossil fuels and show, too, just how hard it will be to end our dependence, given the earth's surprising, and seemingly endless, ability to enable it.

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Health IT Saves a Life in Memphis PDF Print E-mail
Wednesday, 16 November 2011 02:11

http://www.technologyreview.com/files/76815/healthcare_x220.jpgA medical data-sharing program saved at least $2 million and gave doctors crucial insight about a pregnant woman's complications.

A new study has found that a medical-information exchange system that is considered a model for health-care reform efforts saved significant amounts of money and led to better care for patients—including a woman who probably would have died without the system.

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Car Warns When Your Blood Sugar Is Low PDF Print E-mail
Monday, 17 October 2011 18:32

Ford uses wireless technology to connect a car's dashboard to medical devices and health-monitoring apps.

Your car may soon be able to warn you if your blood sugar dips, alert you to high pollen counts, and remind you to take your medication. Ford demonstrated the new in-car technology—currently a research project—this week at the Wireless Health 2011 conference in La Jolla, California.

Many carmakers see a big opportunity in adding new functionality to the computers built into many models. Some cars already use Internet connectivity to alert drivers to traffic tie-ups.

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Repaired Stem Cells Treat Liver Disease in Mice PDF Print E-mail
Thursday, 13 October 2011 21:16

Scientists corrected a genetic error in stem cells from patients with liver disease, and implanted those cells in the livers of mice.

A new study demonstrates how patient-derived stem cells might one day be used to treat genetic diseases. Scientists from Cambridge, England, corrected a genetic error in stem cells derived from patients with a liver disease, and then differentiated them into liver cells. When injected into the livers of mice, the cells integrated into the organ and started functioning normally.

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Wired Petri Dish Gives Real-Time Updates PDF Print E-mail
Thursday, 13 October 2011 21:01

Researcher says "it's like getting continuous tweets from the cells rather than an occasional postcard."

A new prototype petri dish can create an image of what's growing on it and send that information to a laptop, all from inside an incubator. The prototype, dubbed the ePetri, was created from Lego blocks and a cell-phone image sensor, and uses light from a Google Android smart phone.

"Normally, one leaves the cells in an incubator and just checks up on them from time to time," says Michael Elowitz, a professor of biology at Caltech, who coauthored the paper.

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A stretchy binder material that's compatible with existing factories could help electric cars and portable electronics go 30 percent longer. PDF Print E-mail
Tuesday, 11 October 2011 07:55

A sheath of carbon nanotubes or conductive polymer improves the charge-storage capacity of electrodes.

A simple trick could improve the ability of advanced ultracapacitors, or supercapacitors, to store charge. The technique, developed by Stanford University researchers, could enable the use of new types of nanostructured electrode materials that store more energy.

While ultracapacitors provide quick bursts of power and can be recharged many more times than batteries without losing their storage capacity, they can store only a tenth as much energy as batteries, which limits their applications.

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Carmakers Unveil New Types of Hybrids PDF Print E-mail
Friday, 07 October 2011 03:53

Alternative approaches replace the battery with compressed air or a flywheel.

Hybrid cars normally combine conventional engines with battery-powered electric motors. But many carmakers are developing alternative types of hybrids—some of which were on display this month at the Frankfurt Motor Show in Germany.

Hybrid systems recover kinetic energy—from the engine or from the vehicle itself—and use it to boost the efficiency of the engine. A typical hybrid car does this by charging up a battery.

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Giving Prosthetics a Sense of Touch PDF Print E-mail
Friday, 07 October 2011 03:42

A study gives a first demonstration that brain-machine interfaces can include touch feedback.

Brain-machine interfaces have made it possible for monkeys and some humans to control robotic limbs using just their thoughts. But ideally, a person using an artificial limb or other device would not only be able to control the device, but also feel what it's touching.

A new study from the lab of Miguel Nicolelis at Duke University Medical Center takes a first step toward such an interface.

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Researchers Engineer Mice with Anomalies Linked to Autism and Schizophrenia PDF Print E-mail
Tuesday, 04 October 2011 02:15

By creating animals with chromosomal abnormalities, they hope to learn more about how the disorders develop.

Family studies suggest a strong genetic component to autism and schizophrenia, but the disorders are thought to arise during early development, making it difficult to study the underlying genetics.

Now researchers at Cold Spring Harbor Laboratory in New York have created mice with chromosomal abnormalities that mirror those seen in humans with these disorders, which should make it easier to study the role of genetics in the development of the brain.

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China Beckons for Green-Energy Startups PDF Print E-mail
Thursday, 29 September 2011 21:58

Boston Power's move reflects China's willingness to provide incentives for companies in strategic industries.

Many in the U.S. have an interest in getting clean-tech ventures off the ground. Among them are the government, capital markets, industry, and science labs. But China seems ready to do more on every front to make such projects happen, and to do it right now—without red tape or concern about economic turmoil.

Leading-edge battery maker Boston Power appears to have come to that conclusion. The company is set to move to China, where the government is helping to cut the firm a $125-million deal that no one else is likely to match.

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The Latest Sports Stat: Players' Vital Signs PDF Print E-mail
Thursday, 29 September 2011 21:51

Wearable sensors collect data from athletes as they're playing—data that could soon be broadcast during the game.

Statistics in sports is about to hit a whole new level. A new generation of wearable monitors that measure heart rate, electrical activity in the heart, lung capacity, metabolism, and other metrics is allowing scientists to study athletes' physiology as they play.

The data has obvious potential to enhance players' health, and to help trainers tailor workouts, but device makers and the sports industry seem most excited about the prospects for entertainment. They are already working on ways to display the data during games, in stadiums and on television, giving fans unprecedented insight into players.

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