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Anti-Helium Discovered in the Heart of STAR

By Guest PostApril 26, 2011Scienceaccelerator technology, alpha magnetic spectrometer, ams, anti heavy hydrogen, anti hypertriton, antialpha, antideuteron, antielectron, antihelium 4, antinucleons, antiparticles, antiproton, baryon, baryon number, berkeley lab, carl anderson, CERN, collisions of energetic gold nuclei, ernest rutherford, experiment, hans georg ritter, heaviest antiparticle, nu xu, nucleus, nucleus of antihelium 4, nucleus of antihydrogen, particle, positron, relativistic heavy ion collider, rhic, star, star experiment

*Berkeley Lab nuclear scientists join with their international colleagues in the latest record-breaking discovery at RHIC*

Eighteen examples of the heaviest antiparticle ever found, the nucleus of antihelium-4, have been made in the STAR experiment at RHIC, the Relativistic Heavy Ion Collider at the U.S. Department of Energy’s Brookhaven National Laboratory.

“The STAR experiment is uniquely capable of finding antihelium‑4,” says the STAR experiment’s spokesperson, Nu Xu, of the Nuclear Science Division (NSD) at Lawrence Berkeley National Laboratory (Berkeley Lab). “STAR already holds the record for massive antiparticles, last year having identified the anti-hypertriton, which contains three constituent antiparticles. With four antinucleons, antihelium-4 is produced at a rate a thousand times lower yet. To identify the 18 examples required sifting through the debris of a billion gold-gold collisions.” (more…)

Multitasking Challenge: Radar Analysis of Walking Patterns Shows Promise for Detecting Concussions in Athletes and Soldiers

By Guest PostApril 25, 2011Sciencegait patterns, motor skill tasks, multitasking challenge, signs of concussion, traumatic brain injuries, walking patterns

Walking and thinking at the same time can be especially difficult for persons who’ve suffered concussions, and scientists hope to use that multitasking challenge — measured by a simple radar system — to quickly screen individuals who may have suffered brain injuries. (more…)

Melting Ice on Arctic Islands a Major Player in Sea Level Rise

By Guest PostApril 25, 2011Environmentalaska, alex gardner, Antarctica, canadian arctic, canadian arctic archipelago, canadian arctic islands, climate, earth, gravimetry, gravitational field, greenland, ice caps, lake erie, melting glaciers, melting of glacier ice, mountain glaciers, numerical simulation, patagonia, sea-level rise, temperatures, university of michigan

ANN ARBOR, Mich.— Melting glaciers and ice caps on Canadian Arctic islands play a much greater role in sea level rise than scientists previously thought, according to a new study led by a University of Michigan researcher.

The 550,000-square-mile Canadian Arctic Archipelago contains some 30,000 islands. Between 2004 and 2009, the region lost the equivalent of three-quarters of the water in Lake Erie, the study found. Warmer-than-usual temperatures in those years caused a rapid increase in the melting of glacier ice and snow, said Alex Gardner, a research fellow in the Department of Atmospheric, Oceanic and Space Sciences who led the project. The study is published online in Nature on April 20. (more…)

Amazon Books Launches Author Interview Series: “Author Interviews@Amazon”

By Guest PostApril 25, 2011Technologyamazon books, author interviews, books blog

Customers can contribute questions for their favorite authors via Amazon.com Books Facebook page and books blog, Omnivoracious

SEATTLE, Apr 25, 2011 (BUSINESS WIRE) — Amazon.com today introduced “Author Interviews@Amazon,” the new author interview series that will be available in a new content destination called The Backstory. Author Interviews@Amazon launches with five video interviews, including celebrity chef and James Beard Award-winning Tom Douglas, New York Times bestselling debut author Joshua Foer, young adult authors Holly Black and Cassandra Clare, and Gossip Girl producer John Stephens. (more…)

Researchers Inject Nanofiber Spheres Carrying Cells into Wounds to Grow Tissue

By Guest PostApril 25, 2011Healthbiodegradable nanofibers, cell matrix, nanofiber spheres, tissue repair, wounds

ANN ARBOR, Mich.— For the first time, scientists have made star-shaped, biodegradable polymers that can self-assemble into hollow, nanofiber spheres, and when the spheres are injected with cells into wounds, these spheres biodegrade, but the cells live on to form new tissue. (more…)

Mutated Gene Found in Dog Disease the Same in Humans, MU Researchers Find

By Guest PostApril 24, 2011Scienceanimal, cell function, columbia, dennis o’brien, dna test, fabiana farias, gary johnson, gene mutation, human neurological disorder, lynn steinhaus, man, martin katz, ncl, neuronal ceroid-lipofuscinosis, parkinson disease, seizures, tibetan terrier dogs, university of missouri

*Tibetian Terrier dogs could play key role in developing therapy for early-onset Parkinson’s*

COLUMBIA, Mo. – University of Missouri researchers believe both man and animal will benefit from their discovery that the same gene mutation found in Tibetan Terrier dogs can also be found in a fatal human neurological disorder related to Parkinson’s disease.

Fabiana Farias, a doctoral candidate in Area Genetics at the University of Missouri, found the mutation as part of her thesis research. Gary Johnson, associate professor of Veterinary Pathobiology; Martin Katz, professor of Veterinary Pathobiology, and Dennis O’Brien, a professor in the Department of Veterinary Medicine and Surgery, along with a host of researchers from MU’s College of Veterinary Medicine; College of Agriculture, Food and Natural Resources (CAFNR) and the Mason Eye Institute, recently published the findings in Neurobiology of Disease. (more…)

How Beliefs Shape Effort and Learning

By Guest PostApril 24, 2011Sciencebagasi, bridgid finn, columbia university, daniel c. molden, david b. miele, entity theorists, incremental theorists, indonesian, intelligence, learning, level of intelligence, luggage, motivation to learn, pembalut bandage, police, polisi, theories

If it was easy to learn, it will be easy to remember. Psychological scientists have maintained that nearly everyone uses this simple rule to assess their own learning.

Now a study published in an upcoming issue Psychological Science, a journal of the Association for Psychological Science, suggests otherwise: “Individuals with different theories about the nature of intelligence tend to evaluate their learning in different ways,” says David B. Miele of Columbia University, who conducted the study with Bridgid Finn of Washington University in St. Louis and Daniel C. Molden of Northwestern University. (more…)

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