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Study: Social Networks Have Negative Effect On Individual Welfare

Soulskill posted 36 minutes ago | from the tweeting-can-cause-polio dept.

Social Networks 21

An anonymous reader writes: A study of 50,000 people in Italy has found the impact of social networking on individual welfare to be "significantly negative." The researchers found that improvements in self-reported well-being occurred when online networking led to face-to-face interactions, but this effect was overwhelmed by the perceived losses in well-being (PDF) generated by interaction strictly through social networks. The researchers "highlight the role of discrimination and hate speech on social media which they say play a significant role in trust and well-being. Better moderation could significantly improve the well-being of the people who use social networks, they conclude."

Particle Physics To Aid Nuclear Cleanup

Soulskill posted 1 hour ago | from the baby-steps-to-a-tricorder dept.

Science 18

mdsolar sends this report from Symmetry Magazine: Cosmic rays can help scientists do something no one else can: safely image the interior of the nuclear reactors at the Fukushima Daiichi plant. ... [M]uon tomography is similar to taking an X-ray, only it uses naturally produced muons. These particles don't damage the imaged materials and, because they already stream through everything on Earth, they can be used to image even the most sensitive objects. Better yet, a huge amount of shielding is needed to stop muons from passing through an object, making it nearly impossible to hide from muon tomography. ... By determining how muons scatter as they interact with electrons and nuclei within the item, the team's software creates a three-dimensional picture of what's inside. ... To prove the technology, the Los Alamos team shipped a demo detector system to a small, working nuclear reactor in a Toshiba facility in Kawasaki, Japan. There, they placed one detector on either side of the reactor core. "When we analyzed our data we discovered that in addition to the fuel in the reactor core, they had put a few fuel bundles off to the side that we didn't know about," says Morris. "They were really impressed that not only could we image the core, but that we also found those bundles."

Magnetic Stimulation Boosts Memory In Humans

Soulskill posted 7 hours ago | from the better-learning-through-fridge-magnets dept.

Medicine 65

sciencehabit writes: Our memories are annoyingly glitchy. Names, dates, birthdays, and the locations of car keys fall through the cracks, losses that accelerate at an alarming pace with age and in neurodegenerative diseases. Now, by applying electromagnetic pulses through the skull to carefully targeted brain regions, researchers have found a way to boost memory performance in healthy people. The new study (abstract) sheds light on the neural networks that support memories and may lead to therapies for people with memory deficits, researchers say. Similar studies have been performed using electric current.

Coffee Naps Better For Alertness Than Coffee Or Naps Alone

Soulskill posted 8 hours ago | from the meth-naps-still-frowned-upon dept.

Science 105

An anonymous reader writes: Caffeine is a staple of most workplaces — it's rare to find an office without a coffee pot or a fridge full of soda. It's necessary (or at least feels like it's necessary) because many workers have a hard time staying awake while sitting at a desk for hours at a time, and the alternative — naps — aren't usually allowed. But new research shows it might be more efficient for employers to encourage brief "coffee naps," which are more effective at returning people to an alert state than either caffeine or naps alone. A "coffee nap" is when you drink a cup of coffee, and then take a sub-20-minute nap immediately afterward. This works because caffeine takes about 20 minutes to get into your bloodstream, and a 20-minute nap clears adenosine from your brain without putting you into deeper stages of sleep. In multiple studies, tired participants who took coffee naps made fewer mistakes in a driving simulator after they awoke than the people who drank coffee without a nap or slept without ingesting caffeine.

Software Error Caused Soyuz/Galileo Failure

samzenpus posted yesterday | from the put-that-anywhere dept.

Space 146

schwit1 writes An investigation into the recent failed Soyuz launch of the EU's Galileo satellites has found that the Russian Fregat upper stage fired correctly, but its software was programmed for the wrong orbit. From the article: "The failure of the European Union’s Galileo satellites to reach their intended orbital position was likely caused by software errors in the Fregat-MT rocket’s upper-stage, Russian newspaper Izvestia reported Thursday. 'The nonstandard operation of the integrated management system was likely caused by an error in the embedded software. As a result, the upper stage received an incorrect flight assignment, and, operating in full accordance with the embedded software, it has delivered the units to the wrong destination,' an unnamed source from Russian space Agency Roscosmos was quoted as saying by the newspaper."

Canada Tops List of Most Science-Literate Countries

timothy posted yesterday | from the one-end-of-the-moose-has-more-gravity dept.

Canada 200

An anonymous reader writes "A recent survey of scientific education and attitudes showed the Canadian population to have the highest level of scientific literacy in the world, as well as the fewest reservations about the direction of scientific progress (full report). A key factor is a high level of scientific knowledge among the general population (despite comparatively low numbers of people employed in STEM fields). Another is a higher level of comfort with choosing rationality over religious belief — only 25% of Canadians surveyed agreed with the statement "We depend too much on science and not enough on faith", as opposed to 55% in the U.S. and 38% in the E.U.

I also wonder if the vaunted Canadian healthcare system plays a role. When advances in medical science are something you automatically expect to benefit from personally if you need them, they look a lot better than when you have to scramble just to cover your bills for what we have now."

Drought Inspires a Boom In Pseudoscience, From Rain Machines To 'Water Witches'

timothy posted yesterday | from the hi-cousin-barry dept.

Earth 248

merbs (2708203) writes Across drought-stricken California, farmers are desperate for water. Now, many of them are calling dowsers. These "water witches," draped in dubious pseudoscience or self-assembled mythologies—or both—typically use divining rods and some sort of practiced intuition to "find" water. The professional variety do so for a fee. And business is booming. They're just part of a storied tradition of pseudoscientific hucksters exploiting our thirst for water, with everything from cloudbusters to rainmachines to New Age rituals.

No, a Stolen iPod Didn't Brick Ben Eberle's Prosthetic Hand

timothy posted yesterday | from the too-bad-to-be-true dept.

The Military 121

New submitter willoremus writes A wounded Army vet had his $75k prosthetic hand bricked when someone stole his iPod Touch? Yeah, not so much. I'm a tech reporter for, and a Slashdot post earlier this week prompted me to look into this story and ultimately debunk some of the key info. Sorry for self-posting, but I thought folks here might be interested in the truth since the false story was one of the top posts earlier this week.

Death Valley's Sailing Stones Caught In the Act

timothy posted yesterday | from the aliens-did-it dept.

Science 48

Capt.Albatross (1301561) writes "The flat surface of the Racetrack Playa in Death Valley is littered with rocks, some weighing hundreds of kilograms, each at the end of a track indicating that it has somehow slid across the surface. The mechanism behind this has been the subject of much speculation but little evidence, until a trio of scientists caught them in action with cameras and GPS."

NASA Telescopes Uncover Early Construction of Giant Galaxy

timothy posted 2 days ago | from the after-the-completed-sketches-of-course dept.

Space 25

littlesparkvt (2707383) writes "Astronomers have uncovered for the first time the earliest stages of a massive galaxy forming in the young Universe. The discovery was made possible through combining observations from the NASA/ESA Hubble Space Telescope, NASA's Spitzer Space Telescope, ESA's Herschel Space Observatory, and the W.M. Keck Observatory in Hawaii. The growing galaxy core is blazing with the light of millions of newborn stars that are forming at a ferocious rate. The paper appears in the journal Nature on 27 August." (Here's the NASA press release.)

Fish Raised On Land Give Clues To How Early Animals Left the Seas

samzenpus posted 2 days ago | from the fishy-first-step dept.

Science 62

sciencehabit writes When raised on land, a primitive, air-breathing fish walks much better than its water-raised comrades, according to a new study. The landlubbers even undergo skeletal changes that improve their locomotion. The work may provide clues to how the first swimmers adapted to terrestrial life. The study suggests that the ability of a developing organism to adjust to new conditions—its so-called developmental plasticity—may have played a role in the transition from sea to land.

New NRC Rule Supports Indefinite Storage of Nuclear Waste

samzenpus posted 2 days ago | from the can-I-leave-this-here? dept.

Government 168

mdsolar writes in with news about a NRC rule on how long nuclear waste can be stored on-site after a reactor has shut down. The five-member board that oversees the Nuclear Regulatory Commission on Tuesday voted to end a two-year moratorium on issuing new power plant licenses. The moratorium was in response to a June 2012 decision issued by the U.S. Court of Appeals for the District of Columbia that ordered the NRC to consider the possibility that the federal government may never take possession of the nearly 70,000 metric tons of spent nuclear fuel stored at power plant sites scattered around the country. In addition to lifting the moratorium, the five-member board also approved guidance replacing the Waste Confidence Rule. "The previous Waste Confidence Rule determined that spent fuel could be safely stored on site for at least 60 years after a plant permanently ceased operations," said Neil Sheehan, spokesman for the NRC. In the new standard, Continued Storage of Spent Nuclear Fuel Rule, NRC staff members reassessed three timeframes for the storage of spent fuel — 60 years, 100 years and indefinitely.

Underground Experiment Confirms Fusion Powers the Sun

Soulskill posted 2 days ago | from the if-you-lost-a-bet,-go-pay-up dept.

Science 140

sciencehabit writes: Scientists have long believed that the power of the sun comes largely from the fusion of protons into helium, but now they can finally prove it (abstract). An international team of researchers using a detector buried deep below the mountains of central Italy has detected neutrinos—ghostly particles that interact only very reluctantly with matter—streaming from the heart of the sun. Other solar neutrinos have been detected before, but these particular ones come from the key proton-proton fusion reaction that is the first part of a chain of reactions that provides 99% of the sun's power.

Eye Problems From Space Affect At Least 21 NASA Astronauts

Soulskill posted 2 days ago | from the need-gravity-to-balance-eye-fusion dept.

NASA 106

SternisheFan sends this report from Universe Today: How does microgravity affect your health? One of the chief concerns of NASA astronauts these days is changes to eyesight. Some people come back from long-duration stays in space with what appears to be permanent changes, such as requiring glasses when previously they did not. And the numbers are interesting. A few months after NASA [said] 20% of astronauts may face this problem, a new study points out that 21 U.S. astronauts that have flown on the International Space Station for long flights (which tend to be five to six months) face visual problems. These include "hyperopic shift, scotoma and choroidal folds to cotton wool spots, optic nerve sheath distension, globe flattening and edema of the optic nerve," states the University of Houston, which is collaborating with NASA on a long-term study of astronauts while they're in orbit.

Limiting the Teaching of the Scientific Process In Ohio

Unknown Lamer posted 2 days ago | from the thinking-leads-to-questioning dept.

Education 515

frdmfghtr (603968) writes Over at Ars Technica, there's a story about a bill in the Ohio legislature that wants to downplay the teaching of the scientific process. From the article: "Specifically prohibiting a discussion of the scientific process is a recipe for educational chaos. To begin with, it leaves the knowledge the kids will still receive—the things we have learned through science—completely unmoored from any indication of how that knowledge was generated or whether it's likely to be reliable. The scientific process is also useful in that it can help people understand the world around them and the information they're bombarded with; it can also help people assess the reliability of various sources of information." The science standards would have "...focus on academic and scientific knowledge rather than scientific processes; and prohibit political or religious interpretation of scientific facts in favor of another." Political interpretation of scientific facts include humans contributing to climate change according to the bill's sponsor, who also thinks intelligent design would be OK under the law.

Statistics Losing Ground To CS, Losing Image Among Students

Unknown Lamer posted 2 days ago | from the big-bad-data dept.

Stats 113

theodp (442580) writes Unless some things change, UC Davis Prof. Norman Matloff worries that the Statistician could be added to the endangered species list. "The American Statistical Association (ASA) leadership, and many in Statistics academia," writes Matloff, "have been undergoing a period of angst the last few years, They worry that the field of Statistics is headed for a future of reduced national influence and importance, with the feeling that: [1] The field is to a large extent being usurped by other disciplines, notably Computer Science (CS). [2] Efforts to make the field attractive to students have largely been unsuccessful."

Matloff, who has a foot in both the Statistics and CS camps, but says, "The problem is not that CS people are doing Statistics, but rather that they are doing it poorly. Generally the quality of CS work in Stat is weak. It is not a problem of quality of the researchers themselves; indeed, many of them are very highly talented. Instead, there are a number of systemic reasons for this, structural problems with the CS research 'business model'." So, can Statistics be made more attractive to students? "Here is something that actually can be fixed reasonably simply," suggests no-fan-of-TI-83-pocket-calculators-as-a-computational-vehicle Matloff. "If I had my druthers, I would simply ban AP Stat, and actually, I am one of those people who would do away with the entire AP program. Obviously, there are too many deeply entrenched interests for this to happen, but one thing that can be done for AP Stat is to switch its computational vehicle to R."

Fermilab Begins Testing Holographic Universe Theory

Unknown Lamer posted 2 days ago | from the warp-life-0.1 dept.

Science 244

Back in 2009, researchers theorized that space could be a hologram. Four years ago, Fermilab proposed testing the theory, and the experiment is finally going online. Jason Koebler writes Operating with cutting-edge technology out of a trailer in rural Illinois, government researchers started today on a set of experiments that they say will help them determine whether or not you and me and everything that exists are living in a two-dimensional holographic universe. In a paper explaining the theory, Craig Hogan, director of the Department of Energy's Fermilab Center for Particle Astrophysics writes that "some properties of space and time that seem fundamental, including localization [where things are], may actually emerge only as a macroscopic approximation from the flow of information in a quantum system." In other words, the location of places in space may constantly fluctuate ever so slightly, which would suggest we're living in a hologram.

Brown Dwarf With Water Clouds Tentatively Detected Just 7 Light-Years From Earth

Unknown Lamer posted 2 days ago | from the a-bit-chilly dept.

Space 82

sciencehabit (1205606) writes Astronomers have found signs of water ice clouds on an object just 7.3 light-years from Earth — less than twice the distance of Alpha Centauri. If confirmed, the discovery is the first sighting of water clouds beyond our solar system. The clouds shroud a Jupiter-sized object known as a brown dwarf and should yield insight into the nature of cool giant planets orbiting other suns.

Exomoon Detection Technique Could Greatly Expand Potential Habitable Systems

Unknown Lamer posted 2 days ago | from the larry-ellison-to-buy-exomoon dept.

Space 65

Luminary Crush (109477) writes Most of the detected exoplanets thus far have been gas giants which aren't great candidates for life as we know it. However, many of those planets are in fact in the star's habitable zone and could have moons with conditions more favorable. Until now, methods to detect the moons of such gas giants have been elusive, but researchers at the University of Texas, Arlington have discovered a way to detect the interaction of a moon's ionosphere with the parent gas giant from studies of Jupiter's moon Io. The search for 'Pandora' has begun.

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