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Spam

Researchers Take Down a Spam Botnet 207

Posted by kdawson from the chalk-up-one-for-the-good-guys dept.
The Register is reporting on the takedown of a botnet once responsible for 1/3 of the world's spam. The deed was done by researchers from the security firm FireEye, who detailed the action in a series of blog posts. PC World's coverage estimates that lately the botnet has accounted for 4% of spam. From the Register: "After carefully analyzing the machinations of the massive botnet, alternately known as Mega-D and Ozdok, the FireEye employees last week launched a coordinated blitz on dozens of its command and control channels. ... Almost immediately, the spam stopped, according to M86 Security blog. ... The body blow is good news to ISPs that are forced to choke on the torrent of spam sent out by the pesky botnet. But because many email servers already deployed blacklists that filtered emails sent from IP addresses known to be used by Ozdok, end users may not notice much of a change. ... With [the] head chopped off of Ozdok, more than 264,000 IP addresses were found reporting to sinkholes under FireEye's control..."
Math

What Computer Science Can Teach Economics 421

Posted by ScuttleMonkey from the just-build-better-computers dept.
eldavojohn writes "A new award-winning thesis from an MIT computer science assistant professor showed that the Nash equilibrium of complex games (like the economy or poker) belong to problems with non-deterministic polynomial (NP) complexity (more specifically PPAD complexity, a subset of TFNP problems which is a subset of FNP problems which is a subset of NP problems). More importantly there should be a single solution for one problem that can be adapted to fit all the other problems. Meaning if you can generalize the solution to poker, you have the ability to discover the Nash equilibrium of the economy. Some computer scientists are calling this the biggest development in game theory in a decade."
Medicine

Researchers Neutralize Parkinson's Dopamine Killers 105

Posted by ScuttleMonkey from the knowing-is-half-the-battle dept.
futurity.org writes with news that Iowa State researchers have made a breakthrough that could eventually lead to a cure for Parkinson's. Identifying the protein that kills the dopamine-producing cells in the brain has allowed the researchers to disable it and could be the first step in the development of new treatments. "Now, Kanthasamy’s group is looking for additional compounds that also can serve to neutralize protein kinase-C. By identifying more compounds that perform the function of neutralizing kinase-C, researchers are more likely to locate one that works well and has few side effects. This discovery is expected to provide new treatment options to stop the progression of the disease or even cure it. 'Once we find the compound, we need to make sure it’s safe. If everything goes well, it could take about 10 years, and then we might be able to see something that will truly make a difference in the lives of people with this disorder,' says Kanthasamy."
Transportation

"Road Trains" Ready To Roll 318

Posted by ScuttleMonkey from the new-possibilities-in-war-driving dept.
clickclickdrone writes to mention that "road trains," a system linking vehicles together via wireless sensors, could soon be rolled out in Europe. The system is designed primarily for cutting fuel consumption, travel time, and congestion. "Funded under the European Commission's Framework 7 research plan, Sartre (Safe Road Trains for the Environment) is aimed at commuters in cars who travel long distances to work every day but will also look at ways to involve commercial vehicles. Tom Robinson, project co-ordinator at engineering firm Ricardo, said the idea was to use off-the-shelf components to make it possible for cars, buses and trucks to join the road train."
Books

Comic Books Improve Early Childhood Literacy 127

Posted by timothy from the shore-helped-mee dept.
Hugh Pickens writes "The Telegraph reports that Professor Carol Tilley, a professor of library and information science at the University of Illinois, says that comics are just as sophisticated as other forms of reading, children benefit from reading them at least as much as they do from reading other kinds of books, and that there is evidence that comics increase children's vocabulary and instill a love of reading. 'A lot of the criticism of comics and comic books come from people who think that kids are just looking at the pictures and not putting them together with the words,' says Tilley. 'But you could easily make some of the same criticisms of picture books – that kids are just looking at pictures, and not at the words.' Tilley says that some of the condescension toward comics as a medium may come from the connotations that the name itself evokes but that the distinct comic book aesthetic — frames, thought and speech bubbles, motion lines, to name a few — has been co-opted by children's books, creating a hybrid format."
Medicine

Enzyme Found To Help Formation of New Axons 88

Posted by kdawson from the some-nerve dept.
Greg George writes "Researchers at Emory University and Georgia Institute of Technology have announced that they have found an enzyme that helps nerves to grow in areas damaged after trauma. In typical injuries, scar tissue forms around the damage point and the body removes the tissue so that new muscle and nerves can regrow in the damaged area. In spinal cord injuries, scar tissue forms and that is the end of the story. Special chemicals form that stop the body's cells from moving in and removing the scar tissue and then allowing the healing process to start. Studies have been done attempting to bypass the scar tissue, but none has been successful in large-scale repair of injured muscle and nerves in the spinal column. The researchers for this paper have found that sugar proteins near the damage point stop the healing and that an enzyme can be used to break down these proteins so that the body can then begin repairs. The enzyme, chondroitinase ABC (chABC), is sensitive to heat, and breaks down quickly in a human body. To stop that process they found that by replacing the ABC with another sugar called trehalose, they were able to stabilize the ABC, allowing it to break down scar tissue over a large area. The gel formed by these sugars is stable for up to six weeks in the bodies of test animals, allowing the research team to inject growth factors that increased the healing, to the point that the animals started to use their limbs again. The work is still in the beginning stages." Reuters reporting adds a few more details: "...many other approaches will be needed to repair spinal cord injuries in humans, including controlling inflammation, which can cause additional injury, stimulating nerve fiber growth, and getting nerves to reconnect and communicate with the brain."
Biotech

Fear Detector To Sniff Out Terrorists 342

Posted by timothy from the interesting-assumptions dept.
Hugh Pickens writes "Evidence that the smell of fear is real was uncovered by US scientists last year who studied the underarm secretions of 20 terrified novice skydivers and found that people appear to respond unconsciously to the sweat smell of a frightened person. Now the Telegraph reports that researchers hope a 'fear detector' will make it possible to identify individuals at check points who are up to no good. 'The challenge lies in the characterization and identification of the specific chemical that gives away the signature of human fear, especially the fear in relation to criminal acts,' says Professor Tong Tun at City University London, who leads the team developing security sensor systems that can detect the human fear pheromone. The project will look at potential obstacles to the device, such as the effects of perfume and the variances in pheromone production and if the initial 18-month feasibility study is successful, the first detectors could be developed in the next two to three years. 'I do not see any particular reason why similar sensor techniques cannot be expanded to identify human smells by race, age or gender to build a profile of a criminal during or after an incident,' Tong added."
Space

LaserMotive Finds Success In Space Elevator Competition 258

Posted by Soulskill from the i'll-still-take-the-stairs-for-now dept.
Bucc5062 writes "LaserMotive has achieved the first step towards the creation of a working space elevator by qualifying for the $900,000 prize in a contest sponsored by NASA. To achieve this first level, LaserMotive needed to propel a platform up a cable dangling from a helicopter at over 2 m/s. They hit a top speed of 4.13 m/s. The next level of qualification will be to achieve a climb speed greater then 5 m/s. LaserMotive beamed roughly 400 watts of laser power to a moving target at a distance of 1 kilometer, as part of the vertical laser alignment procedure. The target was a retro-reflective board a little larger than 1 meter on a side. The contest will continue for another two days with at least two other teams challenging for the prize. To win the Power Beaming competition, the LaserMotive system uses a high-power laser array to shine ultra-intense infrared light onto high-efficiency solar cells, converting the light into electric power which then drives a motor. 'Our system will track the vehicle as it climbs, compensating for motion due to wind and other changes. Building on our experience from last year’s competition, we are designing an improved system able to capture the full $2,000,000 prize.'"

Comment Re:An Improvement (Score 1) 123

by Maalstrom Aran (#28060983) Attached to: Sci-Fi Writers Dream Up Ideas For US Government
Well It's pretty clear to a lot of people that those in power are usually committed to staying in power. These people work hard to sell themselves and the ideas that they adopt so they are more popular then the other guy. Certainly these people gain skills in people/business/image management. However these skills don't necessarily prepare them to be the best at managing a society/city. Collaborative input from others with different perspectives, I believe, is essential. These writers, whether they write sci fi or science fiction, are adept at seeing a situation from a much broader perspective then the limited scope of politicians. Reality, of course, cannot be ignored and a business manager is a good first step for managing a city but if we never think of the possible big picture then we'll have a tough time changing our day to day lives. Getting policy ideas from the guy with the most money sounds utterly insane to me.

Comment Re:An Improvement (Score 2, Interesting) 123

by Maalstrom Aran (#28060601) Attached to: Sci-Fi Writers Dream Up Ideas For US Government
It's the scope of the quality idea that matters. It's one thing to work hard to build a plant in a certain district so you can get elected again next year and quite another to plan for a society using generational ideas that span more than the length of a politicians career. We need more dreams, like the Apollo program, to drive our creation and innovation or our society will stagnate and destroy itself. Until we manage our natural desires of pride and selfishness we must rely on our natural talents like curiosity and growth to protect us. Technology is an amazing part of our lives, but it can't fix everything.

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