Tag Archives: Japan

Fishing for Answers off Fukushima

By Guest PostNovember 19, 2012Environmentcatastrophic damage, cesium, contaminated sediment, contamination, dai ichi, earthquake, fish, fukushima, fukushima prefecture, implication, Japan, japanese coast, japanese public, ken buesseler, maff, marine environment, mitsuo uematsu, northeast, northwest, nuclear power plant, ocean, pacific ocean, public health, radiation, radiation level, radioactive isotope, radionuclides, reactor site, release, seafloor, seaweed, shellfish, tokyo, triple disaster, tsunami, university, world

Japan fisheries data provides a look at how the ocean is faring 18 months after the worst accidental release of radiation to the ocean in history

Japan’s “triple disaster,” as it has become known, began on March 11, 2011, and remains unprecedented in its scope and complexity. To understand the lingering effects and potential public health implications of that chain of events, scientists are turning to a diverse and widespread sentinel in the world’s ocean: fish.

Events on March 11 began with a magnitude 9.0 earthquake, the fourth largest ever recorded. The earthquake in turn spawned a massive 40-foot tsunami that inundated the northeast Japanese coast and resulted in an estimated 20,000 missing or dead. Finally, the wave caused catastrophic damage to the Fukushima Dai-ichi nuclear power plant, resulting in the largest accidental release of radiation to the ocean in history, 80 percent of which ended up in the Northwest Pacific Ocean. (more…)

Another Advance on the Road to Spintronics

By Guest PostOctober 21, 2012Sciencealbert einstein, alexander gray, analyzer, basis, berkeley lab, charles fadley, computing industry, contamination, data, dilute, electron, electronic structure, energy conversion, energy-efficient, exchange model, facility, ferromagnetic, gallium arsenide, gallium atom, gamnas, harpes, hyogo, jan minar, Japan, jun fujii, kelvin, magnetic atom, magnetic semiconductor, memory architecture, nanoscale device, new technique, p d, peter stone, photoelectric effect, photoemission, photovoltaic cell, processing, room temperature, shigenori ueda, spin, spintronic application, spintronic technology, spring8, storage, surface reaction, synchrotron radiation, xray angle, yoshiyuki yamashita

Berkeley Lab Researchers Unlock Ferromagnetic Secrets of Promising Materials

Spintronic technology, in which data is processed on the basis of electron “spin” rather than charge, promises to revolutionize the computing industry with smaller, faster and more energy efficient data storage and processing. Materials drawing a lot of attention for spintronic applications are dilute magnetic semiconductors – normal semiconductors to which a small amount of magnetic atoms is added to make them ferromagnetic. Understanding the source of ferromagnetism in dilute magnetic semiconductors has been a major road-block impeding their further development and use in spintronics. Now a significant step to removing this road-block has been taken.

A multi-institutional collaboration of researchers led by scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), using a new technique called HARPES, for Hard x-ray Angle-Resolved PhotoEmission Spectroscopy, has investigated the bulk electronic structure of the prototypical dilute magnetic semiconductor gallium manganese arsenide. Their findings show that the material’s ferromagnetism arises from both of the two different mechanisms that have been proposed to explain it. (more…)

CU Mathematicians Show How Shallow Waves May Help Explain Tsunami Power

By Guest PostSeptember 19, 2012Scienceboulder, colorado, douglas baldwin, earthquake, interaction height, Japan, los angeles, low tide, mark ablowitz, mathematical equation, Mexico, nonlinear, nonlinearity, nuevo vallarta, ocean wave, pacific ocean, physics, tsunami, university, venice beach, wave height, wave watching

While wave watching is a favorite pastime of beachgoers, few notice what is happening in the shallowest water. A closer look by two University of Colorado Boulder applied mathematicians has led to the discovery of interacting X- and Y-shaped ocean waves that may help explain why some tsunamis are able to wreak so much havoc.

Professor Mark Ablowitz and doctoral student Douglas Baldwin repeatedly observed such wave interactions in ankle-deep water at both Nuevo Vallarta, Mexico, and Venice Beach, Calif., in the Pacific Ocean — interactions that were thought to be very rare but which actually happen every day near low tide. There they saw single, straight waves interacting with each other to form X- and Y-shaped waves as well as more complex wave structures, all predicted by mathematical equations, said Ablowitz. (more…)

Study Highlights How Twitter is Used to Share Information After a Disaster

By Guest PostMay 22, 2012Media, Technology2011 nuclear disaster, andrew binder, fukushima, fukushima daiichi, fukushima disaster, hazard, Japan, nuclear plant, social media, technology issues, tool, tsunami, tweets, Twitter, twitter posts, united states, websites

A study from North Carolina State University shows how people used Twitter following the 2011 nuclear disaster in Japan, highlighting challenges for using the social media tool to share information. The study also indicates that social media haven’t changed what we communicate so much as how quickly we can disseminate it.

“I wanted to see if Twitter was an effective tool for sharing meaningful information about nuclear risk in the wake of the disaster at the Fukushima Daiichi nuclear plant,” says Dr. Andrew Binder, an assistant professor of communication at NC State and author of a paper describing the work. “I knew people would be sharing information, but I wanted to see whether it was anecdotal or substantive, and whether users were providing analysis and placing information in context. (more…)

Increasing Speed of Greenland Glaciers Gives New Insight for Rising Sea Level

By Guest PostMay 6, 2012EnvironmentAntarctica, benjamin smith, climate change, Germany, glaciologist, greenland glaciers, ian howat, ian joughin, ice, icebergs, Japan, meltwater, ocean, rising sea level, scenario, sea-level rise, terrasar x satellite, twila moon, university of washington

Changes in the speed that ice travels in more than 200 outlet glaciers indicates that Greenland’s contribution to rising sea level in the 21^st century might be significantly less than the upper limits some scientists thought possible, a new study shows.

“So far, on average we’re seeing about a 30 percent speedup in 10 years,” said Twila Moon, a University of Washington doctoral student in Earth and space sciences and lead author of a paper documenting the observations published May 4 in Science. (more…)

Imagine Cup Turns 10: A Decade of Inspiring Students to Dream Big

By Guest PostApril 20, 2012Technologyabhinav aj jambulingam, andrew dicken, annie ryu, australia, brazil, david gonzalez, digital infinity, egypt, evangelism group, final, france, imagine cup, imagine cup 2012, immunization checkup, Japan, jared wong, joy ming, karnataka, mark hindsbo, Microsoft, MIT, new york, nicaragua, pat yongpradit, puzzle, redmond, ronny ortiz, rural housing, silver spring, springbrook high, sydney, tablet pc, team remindavax, text message, tohoku earthquake, tsunami, visual studio 2010, windows phone

Heading into the U.S. national finals, Microsoft’s signature technology competition has reached 1.25 million students worldwide over the past 10 years.

REDMOND, Wash. — April 20, 2012 — Across every industry — from healthcare to transportation and agriculture to infrastructure — the world has a never-ending need for inspired minds to find creative solutions that solve tough challenges. Yet it’s been estimated that 1 million science and engineering jobs will go unfilled in the U.S. alone over the next three to five years.

According to Mark Hindsbo, vice president of Microsoft’s U.S. Developer & Platform Evangelism Group, that’s why programs like the Imagine Cup are so important. Encouraging students to develop technology-based solutions for real-world issues, and inspiring them to pursue careers in science, technology, engineering and mathematics, has been the mission of Microsoft’s signature technology competition for the past decade. Hindsbo has been involved with the competition since its beginnings. Every year, he says, the judges are amazed by the contestants’ projects and enthusiasm. (more…)

Cosmic Ray Mystery

By Guest PostApril 19, 2012Scienceactive galaxies, Antarctica, array of detector, australia, bakhtiyar ruzybayev, barbados, belgium, black hole, canada, charged particle, chris elliott, cosmic ray, cosmic ray protons, data, density of radiation, detector, earth, energy, fermi satellites, fireballs, francis halzen, gamma ray bursts, Germany, ghostly nature, glacial ice, grbs, greg sullivan, icecube, icetop, james roth, Japan, katie shirey, NASA, national science foundation, neutrinos, new zealand, nsf, production, proton, pyramid of giza, south pole, Sweden, swift, switzerland, telescope, thomas gaisser, universe, university of delaware, university of wisconsin, US

Massive detector homes in on cosmic ray production

IceCube, an international collaboration involving University of Delaware scientists, is shedding new light on cosmic ray production.

Although cosmic rays were discovered 100 years ago, their origin remains one of the most enduring mysteries in physics. Now, the IceCube Neutrino Observatory, a massive detector in Antarctica, is homing in on how the highest energy cosmic rays are produced. (more…)

IBM Survey Reveals Digital Behavioral Trends for Consumers: What is your Digital Personality?

By Guest PostApril 16, 2012Technologyanalytics, China, consumer, digital device, digital personalities, france, Germany, ibm, Japan, market, Media, nab conference, payment, saul berman, study, united kingdom, united states, web

*Media & Entertainment Providers Must Practice New Rules for Engagement, Digitizing Content is Not Enough*

ARMONK, N.Y. – 16 Apr 2012: A new IBM study of the media and entertainment market, reveals that as consumers adopt an increasing number of digital devices, four distinct new “digital personalities” are emerging. This shift is compelling companies to adopt more innovative business models that deliver personalized experiences. (more…)