Science

Study: Science Still Seen As a Male Profession 109

Posted by Soulskill
from the need-an-opposite-for-bill-nye-the-science-guy dept.
sciencehabit sends news of a study published in the Journal of Educational Psychology which found that science is still perceived as a predominantly male profession across the world. The results were broken out by country, and while the overall trend stayed consistent throughout (PDF), there were variations in perception. For explicit bias: "Countries where this association was strongest included South Africa and Japan. The United States ranked in the middle, with a score similar to Austria, Mexico, and Brazil. Portugal, Spain, and Canada were among the countries where the explicit bias was weakest." For implicit bias: "Denmark, Switzerland, Belgium, and Sweden were among the countries with the highest implicit bias scores. The United States again came in at the middle of the pack, scoring similarly to Singapore. Portugal, Spain, and Mexico had among the lowest implicit bias scores, though the respondents still associated science more with men than with women."
News

Protons Collide At 13 TeV For the First Time At the LHC 46

Posted by Soulskill
from the go-big-or-go-home dept.
An anonymous reader writes to let everyone know the LHC has now smashed protons together at 13 TeV, the highest energy level yet achieved. They've posted the first images captured from the collisions, and explained the testing process as well. Jorg Wenninger of the LHC Operations team says, "When we start to bring the beams into collision at a new energy, they often miss each other. The beams are tiny – only about 20 microns in diameter at 6.5 TeV; more than 10 times smaller than at 450 GeV. So we have to scan around – adjusting the orbit of each beam until collision rates provided by the experiments tell us that they are colliding properly." Spokesperson Tiziano Camporesi adds, "The collisions at 13 TeV will allow us to further test all improvements that have been made to the trigger and reconstruction systems, and check the synchronisation of all the components of our detector."
Space

Asteroid Risk Greatly Overestimated By Almost Everyone 222

Posted by Soulskill
from the but-my-asteroid-insurance-business-is-thriving dept.
StartsWithABang writes: When it comes to risk assessment, there's one type that humans are notoriously bad at: the very low-frequency but high-consequence risks and rewards. It's why so many of us are so eager to play the lottery, and simultaneously why we're catastrophically afraid of ebola and plane crashes, when we're far more likely to die from something mundane, like getting hit by a truck. One of the examples where science and this type of fear-based fallacy intersect is the science of asteroid strikes. With all we know about asteroids today, here's the actual risk to humanity, and it's much lower than anyone cares to admit.
Science

New Class of "Non-Joulian" Magnets Change Volume In Magnetic Field 35

Posted by Soulskill
from the polarizing-research dept.
Zothecula notes an announcement from the University of Maryland saying they have developed a new class of magnets, called "Non-Joulian" magnets, which physically expand in the presence of a magnetic field. "In the 1840s, physicist James Prescott Joule discovered that iron-based magnetic materials changed their shape but not their volume when placed in a magnetic field. This phenomenon is referred to as "Joule Magnetostriction," and since its discovery 175 years ago, all magnets have been characterized on this basis." Another significant property of these new magnets is that they can harvest or convert energy with very little waste heat (abstract). The magnets are created when thermally-treated, iron-based alloys are heated in a furnace, then rapidly cooled. When they reach room temperature, they have an odd, almost cellular shape on the microscopic level. The researchers say the magnets have numerous applications for energy-efficient sensors and actuators.
Space

India Targets July/August To Test Its Space Shuttle 77

Posted by Soulskill
from the hurry-up,-the-ISS-needs-pizza dept.
New submitter gubol123 writes with news that India is close to launching its own space shuttle for the first time. Their space program, ISRO, is planning the shuttle's first test flight for some time in July or August. The unmanned shuttle will fly to a height of approximately 70 kilometers before splashing down in the Bay of Bengal. Oddly, the vehicle itself probably won't be recovered. When it lands in the water, it will sink, and there are no plans to try to bring it back to the surface. The most important obstacles are surviving re-entry and simply staying intact during splashdown. Scientists and ISRO engineers are hoping the shuttle program, when finished, will drop the cost of placing objects in orbit by a factor of 10.
Biotech

DNA On Pizza Crust Leads To Quadruple Murder Suspect 178

Posted by samzenpus
from the taking-a-bite-out-of-crime dept.
HughPickens.com writes: In a case straight out of CSI, CNN reports that police are searching for the man suspected in the gruesome slayings of the Savopoulos family and their housekeeper, after his DNA was purportedly found on a pizza crust at the scene of the quadruple murders. They discovered his DNA on the crust of a Domino's pizza — one of two delivered to the Savopoulos home May 14 as the family was held hostage inside — a source familiar with the investigation said. The pizza apparently was paid for with cash left in an envelope on the porch. The next morning, Savvas Savopoulos's personal assistant dropped off a package containing $40,000 in cash at the home, according to the officials and police documents.

The bodies of Savopoulos, along with his wife, Amy, their 10-year-old son Philip and the family's housekeeper, Veralicia Figueroa, were discovered the afternoon of May 14 after firefighters responded to reports of a fire. D.C. Police Chief Cathy Lanier says the killings are likely not a random crime and police have issued an arrest warrant for the 34-year-old Daron Dylon Wint, who is described as 5'7 and 155 lbs and might also go by the name "Steffon." Wint apparently used to work at American Iron Works, where Savvas Savopoulos was CEO and president. The neighborhood is home to numerous embassies and diplomatic mansions as well as the official residence of Vice President Joe Biden and his wife. "Right now you have just about every law enforcement officer across the country aware of his open warrant and are looking for him," says Lanier. "I think even his family has made pleas for him to turn himself in."
Earth

Gravitational Anomalies Beneath Mountains Point To Isostasy of Earth's Crust 94

Posted by samzenpus
from the give-and-take dept.
StartsWithABang writes: Imagine you wanted to know what your acceleration was anywhere on Earth; imagine that simply saying "9.81 m/s^2" wasn't good enough. What would you need to account for? Sure, there are the obvious things: the Earth's rotation and its various altitudes and different points. Surely, the farther away you are from Earth's center, the less your acceleration's going to be. But what might come as a surprise is that if you went up to the peak of the highest mountains, not only would the acceleration due to gravity be its lowest, but there'd also be less mass beneath your feet than at any other location.
Earth

Oldest Stone Tools Predate Previous Record Holder By 700,000 Years 103

Posted by samzenpus
from the back-in-the-day dept.
derekmead writes: The oldest stone tools ever found have been discovered by scientists in Kenya who say they are 3.3m years old, making them by far the oldest such artifacts discovered. Predating the rise of humans' first ancestors in the Homo genus, the artifacts were found near Lake Turkana, Kenya. More than 100 primitive hammers, anvils and other stone tools have been found at the site. An in-depth analysis of the site, its contents, and its significance as a new benchmark in evolutionary history will be published in the May 21 issue of Nature.
Mars

Martian Moons May Have Formed Like Earth's 50

Posted by Soulskill
from the carved-out-of-green-cheese dept.
sciencehabit writes: Astronomers have long believed that Mars snatched its two moons — Phobos and Deimos — from the asteroid belt. That would explain why the objects look like asteroids—dark, crater-pocked, and potato-shaped. But computer simulations by two independent teams of astronomers (abstract 1, abstract 2) indicated that Mars's moons formed much like ours did, after a giant space rock smashed into the planet and sprayed debris into orbit.
Biotech

After a Year of Secret Field-Testing, Brain-Controlled Bionic Legs Are Here 50

Posted by Soulskill
from the i'll-order-a-dozen dept.
An anonymous reader writes: Today, an Icelandic prosthetic-maker announced that two amputees have been testing brain-controlled bionic legs for over a year. The devices respond to impulses in the subjects' residual limbs, via sensors that were implanted in simple, 15-minute-long procedures. "When the electrical impulse from his brain reaches the base of his leg, a pair of sensors embedded in his muscle tissue connect the neural dots, and wirelessly transmit that signal to the Proprio Foot. Since the command reaches the foot before the wearer's residual muscles actually contract, there's no unnatural lag between intention and action." This is a huge step forward (sorry) for this class of bionics. It may seem like a solved problem based on reports and videos from laboratories, but it's never been exposed to real world use and everyday wear and tear like this.
The Military

Robotic Space Plane Launches In Mystery Mission This Week 109

Posted by samzenpus
from the flying-into-a-mystery dept.
mpicpp writes: The United States Air Force's robotic X-37B space plane will carry a NASA experiment into orbit when it launches on its next mystery mission Wednesday. The liftoff will begin the reusable space plane's fourth mission, which is known as OTV-4 (short for Orbital Test Vehicle-4). Since it's classified it's not entirely clear what the space plane will be doing once it leaves Earth Wednesday. This has led to some speculation that the vehicle might be a weapon, but officials have repeatedly refuted that notion, saying X-37B flights simply test a variety of new technologies. The X-37B looks like a miniature version of NASA's now-retired space shuttle. The robotic, solar-powered space plane is about 29 feet long by 9.5 feet tall (8.8 by 2.9 meters), with a wingspan of 15 feet (4.6 meters) and a payload bay the size of a pickup-truck bed. Like the space shuttle, the X-37B launches vertically and lands horizontally, on a runway.
AI

Forecasting the Next Pandemic 57

Posted by samzenpus
from the I-don't-feel-so-good dept.
sciencehabit writes: A new study led by Barbara A. Han, a disease ecologist at the Cary Institute of Ecosystem Studies, suggests a computer model that incorporates machine learning can pinpoint, with 90% accuracy, rodent species that are known to harbor pathogens that can spread to humans. Sciencemag reports on the study: "Han and her team first used their program to identify lifestyle patterns common to rodents harboring diseases like black plague, rabies, and hanta virus and found that their model had an accuracy rate of 90%. After the machine had 'learned' the telltale signs, the researchers searched for new rodents that fit the profile but were not previously thought to be carriers. So far, the model has identified more than 150 new animal species that could harbor zoonotic diseases, the researchers report online today in the Proceedings of the National Academy of Sciences. The computer program also predicted 58 new infections in rodents that were already known to carry one zoonotic disease."
Space

Four Quasars Found Clustered Together Defy Current Cosmological Expectations 62

Posted by samzenpus
from the standing-out-in-a-crowd dept.
StartsWithABang writes: Get a supermassive black hole feeding on matter, particularly on large amounts of cool, dense gas, and you're likely to get a quasar: a luminous, active galaxy emitting radiation from the radio all the way up through the X-ray. Our best understanding and observations indicate that these objects should be rare, transient, and isolated; no more than two have ever been found close together before. Until this discovery, that is, where we just found four within a million light years of one another, posing a problem for our current theories of structure formation in the Universe.
Crime

Silk Road's Leader Paid a Doctor To Help Keep Customers Safe 110

Posted by samzenpus
from the safety-first dept.
An anonymous reader writes: Two years after the fall of Silk Road, new facts about the saga are still emerging all the time. The latest revelation is that Dread Pirate Roberts, the leader of Silk Road, paid a doctor $500 per week to offer public and private counseling to customers of the site. DoctorX, also known as Dr. Fernando Caudevilla, became famous for his free work on the site. The fact that he was eventually paid a salary is being used by lawyers for Ross Ulbricht to argue that Silk Road emphasized harm reduction and was, on the whole, a huge improvement in safety for drug users.
Biotech

Genetically Engineered Yeast Makes It Possible To Brew Morphine 333

Posted by samzenpus
from the let-it-rise dept.
PvtVoid writes: The New York times reports that newly developed yeast strains will soon make it possible to create morphine from fermentation of sugar. While no one has claimed to make morphine in lab from scratch yet, concerns are already being raised about potential abuse. According to the Times article: "This rapid progress in synthetic biology has set off a debate about how — and whether — to regulate it. Dr. Oye and other experts said this week in a commentary in Nature Chemical Biology that drug-regulatory authorities are ill prepared to control a process that will benefit the heroin trade much more than the prescription painkiller industry. The world should take steps to head that off, they argue, by locking up the bioengineered yeast strains and restricting access to the DNA that would let drug cartels reproduce them.