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Friday September 19th 2014

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A refined approach to proteins at low resolution

Crystals of membrane proteins and protein complexes often diffract to low resolution owing to their intrinsic molecular flexibility, heterogeneity or the mosaic spread of micro-domains. At low resolution, the building and refinement of atomic models is a more challenging task. The deformable elastic network refinement method developed previously has been instrumental in the determination of several structures at low resolution. Here, DEN refinement is reviewed.

Posted on 19 September 2014 | 4:00 am

Quick-change materials break the silicon speed limit for computers

Faster, smaller, greener computers, capable of processing information up to 1,000 times faster than currently available models, could be made possible by replacing silicon with materials that can switch back and forth between different electrical states.

Posted on 19 September 2014 | 4:00 am

Dwindling wind may tip predator-prey balance

Rising temperatures and shifting precipitation patterns may get the lion’s share of our climate change attention, but predators may want to give some thought to wind, according to a University of Wisconsin Madison zoologist’s study, which is among the first to demonstrate the way ‘global stilling’ may alter predator-prey relationships.

Posted on 19 September 2014 | 4:00 am

Simple test can help detect Alzheimer’s before dementia signs show: York U study

Faculty of Health Professor Lauren Sergio and PhD candidate Kara Hawkins who led the study asked the participants to complete four increasingly demanding visual-spatial and cognitive-motor tasks, on dual screen laptop computers. The test aimed at detecting the tendency for Alzheimer’s in those who were having cognitive difficulty even though they were not showing outward signs of the disease.

Posted on 19 September 2014 | 4:00 am

NASA eyes Tropical Storm Fung-Wong move through Northwestern Pacific

Tropical Storm Fung-Wong continued to affect the Philippines while moving north through the Northwestern Pacific Ocean. NASA’s Aqua satellite provided infrared data on the storm’s clouds that showed some high, strong thunderstorms with the potential for heavy rainfall over the northern and central regions of the country. The storm is now expected to affect three more countries over the next several days.

Posted on 19 September 2014 | 4:00 am

Long-distance communication from leaves to roots

Leguminous plants create symbiotic organs called nodules in their roots. Japanese researchers have shown that cytokinins, a kind of plant hormone, play an important role in preserving proper root nodule numbers using the model plant Lotus japonicus. The results of this work were published in the journal Nature Communications titled ‘Shoot-derived cytokinins systemically regulate root nodulation.’

Posted on 19 September 2014 | 4:00 am

NASA sees Tropical Storm playing polo with western Mexico

Tropical Storm Polo is riding along the coast of western Mexico like horses in the game of his namesake. NASA’s Aqua satellite saw Polo about 300 miles south-southeast of Baja California on its track north.

Posted on 19 September 2014 | 4:00 am

New hadrosaur noses into spotlight

Call it the Jimmy Durante of dinosaurs — a newly discovered hadrosaur with a truly distinctive nasal profile. The new dinosaur, named Rhinorex condrupus by paleontologists from North Carolina State University and Brigham Young University, lived in what is now Utah approximately 75 million years ago during the Late Cretaceous period.

Posted on 19 September 2014 | 4:00 am

NASA, NOAA satellites show Odile’s remnant romp through southern US

Former Hurricane Odile may be a bad memory for Baja California, but the remnants have moved over New Mexico and Texas where they are expected to bring rainfall there. NASA’s TRMM satellite measured Odile’s heavy rainfall rates on Sept. 18, and NOAA’s GOES-West satellite saw the clouds associated with the former storm continue to linger over the US Southwest on Sept. 19.

Posted on 19 September 2014 | 4:00 am

Milestone in chemical studies of superheavy elements

An international collaboration led by research groups from Mainz and Darmstadt, Germany, has achieved the synthesis of a new class of chemical compounds for superheavy elements at the RIKEN Nishina Center for Accelerator-based Research in Japan. For the first time, a chemical bond was established between a superheavy element — seaborgium (element 106) in the present study — and a carbon atom.

Posted on 19 September 2014 | 4:00 am

Science News Headlines – Yahoo News

Get the latest Science news headlines from Yahoo News. Find breaking Science news, including analysis and opinion on top Science stories.

Zero-G 3D Printer Set for Launch: What Will Be Made In Space First?

Zero-G 3D Printer Set for Launch: What Will Be Made In Space First?The first 3D printer designed to operate in zero gravity is set to launch to the International Space Station early on Saturday morning (Sept. 20) on board a NASA-contracted SpaceX Dragon cargo spacecraft. Once installed on the orbiting laboratory, the device will be put through a series of tests to learn if additive manufacturing — better known as 3D printing — is viable in space. "Being able to make what you need on orbit when you need it is a real game changer," Niki Werkheiser, NASA's manager for 3D Printing in Zero-G, a joint project with the company Made In Space, Inc. said. "We wanted to print something that was significant, but also not just a toy," Mike Snyder, the lead engineer and research and development director for Made In Space told collectSPACE.com.

Posted on 19 September 2014 | 7:11 pm

Experts: Science class can dazzle with less danger

This Friday, Sept. 19, 2014 photo shows the exterior of the Lalo Delgado school campus in Denver. Four students were injured, one seriously, when a teacher was pouring methanol onto a table top and igniting it during a chemistry class demonstration last Monday. Educators and investigators say some teachers lack the training required by law and don't know about standard safety measures that can dramatically lower the inherent dangers of hands-on experiments they say are vital to science education. (AP Photo/Brennan Linsley)DENVER (AP) — A dazzling show of fire and color can make science come alive for young students, but it can also inflict serious and painful injuries, as flash fires in Nevada and Colorado showed this month.

Posted on 19 September 2014 | 6:23 pm

SpaceX aims to step up launch rate with next mission for NASA

An exterior of the SpaceX headquarters in HawthorneBy Irene Klotz CAPE CANAVERAL Fla. (Reuters) – A cargo version of the spaceship being developed by privately owned Space Exploration Technologies is slated to launch early Saturday from Cape Canaveral Air Force Station in Florida, the company's second launch in 13 days. Quick turnarounds between flights are expected to become routine as SpaceX, as the California-based company is known, adds ferrying astronauts to the International Space Station to its fast-growing launch business. …

Posted on 19 September 2014 | 5:54 pm

Lonesome No More: George the Giant Tortoise on Public Display in NYC

Lonesome No More: George the Giant Tortoise on Public Display in NYCWith head held high outside of his enormous shell, the giant tortoise proudly looks out from his rock-strewn box at the American Museum of Natural History (AMNH) in New York City. The last known giant tortoise from the island of Pinta in the Galápagos archipelago, George died of old age in June 2012 after what scientists say was about 100 years on Earth. "Even getting the eye color right was an incredibly complicated effort," said Christopher Raxworthy, curator of the museum's Department of Herpetology. While George was arguably the best-documented giant tortoise that ever lived, scientists never captured up-close images of the animal's eyes, which meant that Raxworthy and his team had to do some investigating to get the color just right, the curator said.

Posted on 19 September 2014 | 5:28 pm

Sunken ‘Ship of Gold’ Contains Bounty of Jewelry, Other Treasures

Sunken 'Ship of Gold' Contains Bounty of Jewelry, Other TreasuresA trove of gold coins, bracelets, buckles and broaches are among the precious treasures retrieved from a 157-year-old shipwreck off the coast of South Carolina. The "Ship of Gold," known in its sailing days as the SS Central America, was loaded down with 30,000 lbs. (13,600 kilograms) of gold when a hurricane sent it to the watery depths 160 miles (260 kilometers) from the coast of South Carolina on Sept. 12, 1857. Now, deep-sea exploration company Odyssey Marine Exploration Inc., is re-excavating the site. They've also found gold jewelry, gold nuggets and snippets of 19th-century life, from glass containers to chewing tobacco still in its package. 

Posted on 19 September 2014 | 3:45 pm

Pre-dawn SpaceX Launch on Saturday Visible Along US East Coast

Pre-dawn SpaceX Launch on Saturday Visible Along US East CoastPeople in the eastern United States have an opportunity, weather permitting, to see SpaceX's robotic Dragon capsule launch on a cargo mission to the International Space Station early Saturday morning (Sept. 20).   The Dragon space capsule will launch into orbit atop SpaceX's Falcon 9 v1.1 rocket at 2:14 a.m. EDT (0614 GMT) on Saturday from Florida's Cape Canaveral Air Force Station. As was the case with NASA's space shuttle launches to the station, Saturday's launch will travel nearly parallel to the U.S. You can watch the Dragon launch in live webcasts provided by NASA TV and SpaceX.

Posted on 19 September 2014 | 3:32 pm

Breast Pump ‘Hackathon’ Seeks Better Tech for Busy Moms

Students at the Massachusetts Institute of Technology (MIT) are on a mission to make the breast-feeding experience better for moms. This weekend, the school’s Media Lab is hosting a hackathon to come up with new designs for breast pumps, which are machines used by nursing moms to extract milk when they’re away from their little ones. The event, aptly named the “Make the Breast Pump Not Suck” Hackathon, will be held Saturday and Sunday (Sept. 20-21) at MIT’s Media Lab in Cambridge, Massachusetts. For many mothers with young children, particularly those who work outside the home, a breast pump is an essential tool.

Posted on 19 September 2014 | 1:23 pm

Scientists see risk of mutant airborne Ebola as remote

MSF health workers prepare at ELWA's isolation camp during the visit of Senior U.N. System Coordinator for Ebola David Nabarro, at the camp in MonroviaBy Kate Kelland LONDON, Sept 19 (Reuters) – The Ebola virus raging through West Africa is mutating rapidly as it tears a deadly path through cities, towns and villages, but the genetic changes are for now not giving it the ability to spread more easily. Concern that the virus could gain capability to transmit through the air – creating a nightmare scenario of the disease being able to spread like a flu pandemic, killing millions – was fueled by a top infectious disease expert in the United States. …

Posted on 19 September 2014 | 11:37 am

Ig Nobel Prizes 2014: Jesus Toast, Dog Poop and Raucous Science

Ig Nobel Prizes 2014: Jesus Toast, Dog Poop and Raucous ScienceThe brilliant minds behind research studies about how Earth's magnetic field affects pooping dogs and why people see Jesus in toast were honored tonight (Sept. 18) during one of the most purposefully ridiculous ceremonies in all of science: the Ig Nobel Prizes. Each year, the Ig Nobel Prizes (a parody of the somewhat more famous Nobel Prizes) are awarded to scientists whose research "makes people laugh and then think." Improbable Research, the organization that awards the prizes, runs the annual ceremony here at Harvard University's Sanders Theater. "The achievements speak for themselves all too eloquently," Master of Ceremonies Marc Abrahams said during tonight's Ig Nobel presentations. For example, this year's prize in Arctic science went to a group of researchers who dressed up like polar bears to see how reindeer in Norway would react compared with their reactions to humans.

Posted on 19 September 2014 | 2:05 am

U.S. government warns Oregon researchers about monkey care

By Courtney Sherwood PORTLAND Ore. (Reuters) – The U.S. Department of Agriculture has warned a major research hospital that it provides inadequate veterinary care to monkeys at its primate research center, Oregon Health & Science University (OHSU) said on Thursday. The Aug. 6 warning letter, the lowest-level penalty issued by the USDA, followed an inspection that found that more than half of the rhesus macaques at Oregon National Primate Research Center were experiencing hair loss, and that 15 monkeys had been injured in a fight that left six of the animals dead, OHSU said. …

Posted on 19 September 2014 | 12:05 am