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U.S. Citizenship May Be Determined At Random

By Guest PostMarch 12, 2012Politicsact, americans, civics knowledge, data, fate, immigrant, immigration officer, immigration services, michigan state university, naturalization, noncitizenship, paula winke, sat, test, united states, us citizenship, uscis

EAST LANSING, Mich. — The fate of nearly half a million immigrants hoping for U.S. citizenship may have been determined randomly, at least in part, according to a new study by a Michigan State University researcher who found the high-stakes civics test isn’t a reliable measure of civics knowledge.

To be awarded citizenship, immigrants must correctly answer six of 10 questions on the verbally administered civics portion of the U.S. Naturalization Test, said Paula Winke, assistant professor of second language studies. (more…)

Yahoo! to Deepen UK Content with Launch of Yahoo! Contributor Network

By Guest PostMarch 12, 2012Technologyassociated content, crowdsourced content, editorial team, potential writers, yahoo contributor network, yahoo omg team

Looking to recruit writers in parenting, fashion, beauty, technology, movies and showbiz to enhance key verticals

LONDON –– Yahoo!, the premier digital media company, today launched Yahoo! Contributor Network in the UK — a platform for crowdsourced content that will expand Yahoo!’s quality content in key editorial segments as well as offering freelancers, bloggers and writers the potential of paid work that reaches a potential monthly audience of over 26 million** (more…)

Fukushima Lesson: Prepare for Unanticipated Nuclear Accidents

By Guest PostMarch 12, 2012Environmentcore melt incident, nuclear accident, nuclear fuel, nuclear fuel knowledge, nuclear power plant, nuclear waste expert

ANN ARBOR, Mich.— A year after the crisis at Japan’s Fukushima Daiichi nuclear power plant, scientists and engineers remain largely in the dark when it comes to fundamental knowledge about how nuclear fuels behave under extreme conditions, according to a University of Michigan nuclear waste expert and his colleagues. (more…)

The First Spectroscopic Measurement of an Anti-Atom

By Guest PostMarch 11, 2012Scienceafrd, alpha collaboration, anti atoms trapped, antielectrons, antihydrogen, antihydrogen atom, antimatter, astronomy, atomic spectrum, berkeley lab, CERN, charge conjugation, cosmic rays, cpt, electric interaction, electron, emission line, geneva, hydrogen, hydrogen atom, hyperfine splitting, joel fajans, jonathan wurtele, magnetic, magnetic fields, magnetic trap, microwaves, parity, positrons, proton nucleus, quantum state, resonant frequency, simone straka, spectroscopic measurements, spin, symmetrical state, time reversal, trapped hydrogen, universe

*Berkeley Lab scientists helped build and operate the ALPHA antimatter trap at CERN, which has now probed the internal structure of the antihydrogen atom for the first time, taking the first step toward possible new insights into the difference between matter and antimatter*

The ALPHA collaboration at CERN in Geneva has scored another coup on the antimatter front by performing the first-ever spectroscopic measurements of the internal state of the antihydrogen atom. Their results are reported in a forthcoming issue of Nature and are now online.

Ordinary hydrogen atoms are the most plentiful in the universe, and also the simplest – so simple, in fact, that some of the most fundamental physical constants have been discovered by measuring the tiny energy shifts resulting from the magnetic and electric interactions of hydrogen’s proton nucleus with its single orbiting electron. (more…)

New Method For Estimating Parameters May Boost Biological Models

By Guest PostMarch 11, 2012Sciencebest, biological systems, bowl, cranos williams, cycle in mammals, cyclical nature, frequency, functional set, key challenges, model, modeling, objective function, optimal fit, optimization, optimization algorithms, oscillatory systems, parameter, parameter estimation, periodic cycles, seyedbehzad nabavi, system oscillations

Modeling biological systems can provide key insights for scientists and medical researchers, but periodic cycles that repeat themselves – so-called oscillatory systems – pose some key challenges. Researchers at North Carolina State University have developed a new method for estimating the parameters used in such models – which may advance modeling in research areas ranging from cancer to fertility. (more…)

NASA Mars Orbiter Catches Twister in Action

By Guest PostMarch 11, 2012Scienceamazonis planitia, dust devil, earth, hirise, mars, mars reconnaissance orbiter, martian year, NASA, sun rays, tornado, university of arizona, whirlwind

An afternoon whirlwind on Mars lofts a twisting column of dust more than half a mile (800 meters) high in an image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars Reconnaissance Orbiter.

HiRISE captured the image on Feb. 16, 2012, while the orbiter passed over the Amazonis Planitia region of northern Mars. In the area observed, paths of many previous whirlwinds, or dust devils, are visible as streaks on the dusty surface. (more…)

What Makes Ticks Tick?

By Guest PostMarch 11, 2012Healthantibiotic therapy, chronic lyme, infected ticks, lyme disease vaccine, tick bite, tick vector

Durland Fish has researched ticks and their associated diseases for decades. A professor in the Division of Epidemiology of Microbial Diseases at the Yale School of Public Health, he has, among other things, contributed to the discovery that the bacterium that causes Lyme disease has European ancestry and that the disease, once nearly eradicated in North America, roared back with reforestation. More recently he helped develop a Lyme disease “app” for the iPhone and other Apple devices that provides users with detailed information about tick populations in any given area in the United States and even comes with a video on how to safely remove a tick. He has also worked on mosquito-borne West Nile virus and dengue fever. Students selected Fish as the school’s mentor of the year in 2010. (more…)

Hot Meets Cold at New Deep-Sea Ecosystem: “Hydrothermal Seep”

By Guest PostMarch 10, 2012Environmentdeep sea ecosystem, hot meets cold, hydrothermal seep, hydrothermal vents, jaco scar, rethink the boundary, tectonic plate margin

*Habitats overlap at Jaco Scar in depths off Costa Rica*

Decades ago, marine scientists made a startling discovery in the deep sea. They found environments known as hydrothermal vents, where hot water surges from the seafloor and life thrives without sunlight. (more…)

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