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Power

Wearable Device Generates Electricity From Walking Knee Movements 99

Posted by timothy
from the walk-to-work dept.
Zothecula writes "If you've ever worn a knee brace, then you may have noticed what a large change in angle your knee goes through with every step you take, and how quickly it does so. A team of scientists from the U.K.'s Cranfield University, University of Liverpool and University of Salford certainly noticed, and decided that all that movement should be put to use. The result is a wearable piezoelectric device that converts knee movement into electricity, which could in turn be used to power gadgets such as heart rate monitors, pedometers and accelerometers."
Earth

Did Neandertals Paint Early Cave Art? 126

Posted by timothy
from the everyone's-a-critic dept.
sciencehabit writes "Dating experts working in Spain, using a technique relatively new to archaeology, have pushed dates for the earliest cave art back some 4000 years to at least 41,000 years ago, raising the possibility that the artists were Neandertals rather than modern humans. And a few researchers say that the study argues for the slow development of artistic skill over tens of thousands of years — not a swift acquisition of talent, as some had argued."
Space

Liu Yang Becomes China's First Female Astronaut 229

Posted by timothy
from the holding-up-half-of-heaven dept.
China launched Saturday a rocket bearing three astronauts and an experimental orbiting module intended to presage a full-fledged space station at the end of this decade. While that's big news in itself, the launch also marks the first trip for a female Chinese astronaut. The BBC has a brief video, including part of a pre-launch press conference introducing 33-year-old astronaut Liu Yang, as well as her crewmates.
Biotech

Computers May Be As Good As (Or Better Than) Human Biocurators 35

Posted by timothy
from the skynet's-nicer-side dept.
Shipud writes "Sequencing the genome of an organism is not the end of a discovery process; rather, it is a beginning. It's the equivalent of discovering a book whose words (genes) are there, but their meaning is yet unknown. Biocurators are the people who annotate genes — find out what they do — through literature search and the supervised use of computational techniques. A recent study published in PLoS Computational Biology shows that biocurators probably perform no better than fully automated computational methods used to annotate genes. It is not clear whether this is because the software is of high quality, or both curators and software need to improve their performance. The author of this blog post uses the concept of the uncanny valley to explain this recent discovery and what it means to both life science and artificial intelligence."
Medicine

Black Death Discovered In Oregon 404

Posted by timothy
from the oregon-the-euthanasia-state dept.
redletterdave writes "The Black Death, a strain of bubonic plague that destroyed nearly a third of Europe's entire population between 1347 and 1369, has been found in Oregon. Health officials in Portland have confirmed that a man contracted the plague after getting bitten by a cat. The unidentified man, who is currently in his 50s, had tried to pry a dead mouse from a stray cat's mouth on June 2 when the cat attacked him. Days later, fever and sickness drove the man to check himself into Oregon's St. Charles Medical Center, where he is currently in 'critical condition.'"
Space

It's Baaack! XB-37B Finally Lands 123

Posted by timothy
from the ready-for-a-nice-classified-nap dept.
ColdWetDog writes "The US Air Force / DARPA 'baby shuttle,' the Boeing-built XB-37B has just landed after 469 days in orbit. No official explanation of why controllers kept the mission going past the original duration of 270 days other than 'because we could.' I, for one, welcome our long duration, unmanned orbital overlords."
Biotech

Too Many Biomedical Graduate Students, Not Enough Jobs 226

Posted by timothy
from the great-big-invisible-hand dept.
stillnotelf writes "ScienceInsider is covering a National Institutes of Health advisory committee report that details problems in the U.S. biomedical research workforce. Current policies encourage the training of large numbers of biomedical graduate students, as they are the cheapest labor available, but the research enterprise is not structured to absorb them into full-time scientist positions. The report's varied suggestions include removing graduate student funding from investigator-linked research grants (shifting it to institution-linked training grants instead) and encouraging the hiring of staff scientists as permanent lab members. This would reduce the number of trainees, but increase the proportion of trainees that maintain careers as researchers. ScienceInsider further notes that a National Research Council report 14 years ago noted a similar problem, but never motivated change."
Space

Fly Your Own Experiment In Space 76

Posted by timothy
from the in-space-no-one-knows-it's-a-time-share dept.
An anonymous reader writes "Want to fly your own experiment in space? dvice are reporting on a project called Ardusat — a satellite based (unsurprisingly perhaps, given the name) on Arduinos. For $500 you can upload your own code to the satellite, and run your own experiment for 1 week. Experimenters will have access to a veritable battery of 25 sensors including magnetometer, geiger counter, accelerometer, gas sensors and various others. As well as allowing for affordable space science, this sounds like it would be awesome for educational institutes."
Medicine

Support Site For Hospital Respirators Found Riddled With Malware 48

Posted by Soulskill
from the what-could-possibly-go-wrong dept.
chicksdaddy writes "A web site used to distribute software updates for a wide range medical equipment, including ventilators has been blocked by Google after it was found to be riddled with malware and serving up attacks. The U.S. Department of Homeland Security is looking into the compromise. The site belongs to San Diego-based CareFusion Inc., a hospital equipment supplier. The infected Web sites, which use a number of different domains, distribute firmware updates for a range of ventilators and respiratory products. Scans by Google's Safe Browsing program in May and June found the sites were rife with malware. For example, about six percent of the 347 Web pages hosted at Viasyshealthcare.com, a CareFusion Web site that is used to distribute software updates for the company's AVEA brand ventilators, were found to be infected and pushing malicious software to visitors' systems."
Biotech

Monsanto May Have To Repay 10 Years of GM Soya Royalties In Brazil 377

Posted by Soulskill
from the bean-counters dept.
scibri writes "Biotech giant Monsanto is one step closer to losing billions of dollars in revenues from its genetically-modified Roundup Ready soya beans, after the Brazilian Supreme Court ruled the company must repay royalties collected over the past decade. Since GM crops were legalized in 2005, Monsanto has charged Brazilian farmers royalties of 2% on their sales of Roundup Ready soya beans. The company also tests Brazilian soya beans that are sold as non-GM — if they turn out to be Roundup Ready, the company charges the farmers 3%. Farmers challenged this as an unjust tax on their business. In April a regional court ruled against Monsanto, though that ruling has been put on hold pending an appeal. The Supreme Court, meanwhile has said that whatever the final ruling is, it will apply throughout the whole country."
Encryption

Move Over, Quantum Cryptography: Classical Physics Can Be Unbreakable Too 126

Posted by Soulskill
from the in-this-house-we-obey-the-laws-of-thermodynamics dept.
MrSeb writes "Researchers from Texas A&M University claim to have pioneered unbreakable cryptography based on the laws of thermodynamics; classical physics, rather than quantum. In theory, quantum crypto (based on the laws of quantum mechanics) can guarantee the complete secrecy of transmitted messages: To spy upon a quantum-encrypted message would irrevocably change the content of the message, thus making the messages unbreakable. In practice, though, while the communication of the quantum-encrypted messages is secure, the machines on either end of the link can never be guaranteed to be flawless. According to Laszlo Kish and his team from Texas A&M, however, there is a way to build a completely secure end-to-end system — but instead of using quantum mechanics, you have to use classical physics: the second law of thermodynamics, to be exact. Kish's system is made up of a wire (the communication channel), and two resistors on each end (one representing binary 0, the other binary 1). Attached to the wire is a power source that has been treated with Johnson-Nyquist noise (thermal noise). Johnson noise is often the basis for creating random numbers with computer hardware."
Crime

Online Pharmacy Pioneer Arrested In Florida 208

Posted by Soulskill
from the internet-pill-man dept.
FeatherBoa writes "A Manitoba man who was one of the first entrepreneurs in the cross-border online pharmacy industry has been arrested in Florida and is facing charges related to the sale of foreign and counterfeit medicines. The U.S. Food and Drug Administration claimed many of the drugs promoted as Canadian actually came from other countries. An FDA spokesperson commented, 'Many of these websites are operating outside of the United States. However, the internet's broad reach allows these websites to reach U.S. consumers.'"
Education

Analyzing Climate Change On Carbon Rich Peat Bogs 163

Posted by samzenpus
from the bogged-down dept.
eldavojohn writes "A new report (PDF) from Climate Central shows that climate change has been affecting some states more than others for the past 100 years. As you can see from a video released by NASA, things have become most problematic since the 70s. Among the states most affected is Minnesota, where moose populations are estimated to have dropped 50% in the past six years. Now the U.S. Department of Energy is spending $50 million on a massive project at the Marcell Experimental Forest to build controlled sections of 36 feet wide and 32 feet tall transparent chambers over peatland ecosystems. Although peat bogs only account for 3% of Earth's surface, they contain over 30% of carbon stored in soil. They aim to manipulate these enclosures to see the effects of warming up to 15 degrees, searching for a tipping point and also observing what new ecosystems might arise. The project hopes to draw attention and analysis from hundreds of scientists and researchers around the globe."
Space

Hawking Is First User of "Big Brain" Supercomputer 93

Posted by samzenpus
from the big-machines dept.
miller60 writes "Calling your product the 'Big Brain Computer' is a heady claim. It helps if you have Dr. Stephen Hawking say that the product can help unlock the secrets of the universe. SGI says its UV2 can scale to 4,096 cores and 64 terabytes of memory, with a peak I/O rate of four terabytes per second and runs off-the-shelf Linux software. Hawking says the UV2 'will ensure that UK researchers remain at the forefront of fundamental and observational cosmology.'"
Space

New Signs Voyager Is Nearing Interstellar Space 168

Posted by samzenpus
from the great-beyond dept.
sighted writes "Yesterday, someone tweeting for the Voyager 2 spacecraft posted: 'Interesting. Compare my data 4 high-energy nucleons w V1's That increase is attracting attention!' Today, NASA says that scientists looking at this rapid rise draw closer to an inevitable but historic conclusion — that humanity's first emissary to interstellar space is on the edge of our solar system. Project scientist Ed Stone said, 'The latest data indicate that we are clearly in a new region where things are changing more quickly. It is very exciting. We are approaching the solar system's frontier.'"

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