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Constantine Gatsonis: Better Triage for Chest Pains

By Guest PostMarch 27, 2012Scienceacrin, acute coronary syndrome, biostatistician, brad snyder, brown, cancer, cardiac disease, ccta, constantine gatsonis, ct angiography, david orenstein, erin greco, heart attack, philadelphia, radiology

In a study in The New England Journal of Medicine, authors including biostatisticians from Brown report that coronary computed tomographic angiography (CCTA) is a safe way to screen patients coming to the ER with chest pains who are not at high risk for acute coronary syndrome. Patients who got CCTA and tested negative were more likely to be discharged home and spend less time at the hospital.

Coronary computed tomographic angiography (CCTA), a technology for diagnostic imaging of the heart, is a safe way to assess whether patients whose risk of heart attack is not high need to be hospitalized when they arrive at the emergency room complaining of chest pains. Brown biostatisticians led by Constantine Gatsonis are part of a team of researchers who report that finding in The New England Journal of Medicine and at the American College of Cardiology Conference March 26. (more…)

Saluting YouTube

By Guest PostMarch 27, 2012Entertainment, Technologydame edna, dana herbert, delaware salutes youtube, james j weber, joyce hill stoner, musicals, plays, ron whittington, scott mason, showmanship, university of delaware, wilmington, YouTube

Professor creates mini-musical celebrating video website

Joyce Hill Stoner, the Edward F. and Elizabeth Goodman Rosenberg Professor of Material Culture in the University of Delaware’s Department of Art Conservation, is an internationally respected scholar and paintings conservator who has a flair for showmanship as well.

Her latest entertainment production, an eight-minute musical in which the state of Delaware salutes YouTube, now is posted on that site for the world to see. Live for just a couple of days, the video already has attracted thousands of viewers. (more…)

Scientists Measure Diameter of The Sun With Unprecedented Accuracy

By Guest PostMarch 27, 2012Sciencebrazil, california, diameter, hawaii, isabelle scholl, jeff kuhn, marcelo emilio, mdi, measurement, mercury, michelson doppler imager, NASA, nasa satellite, ponta grossa, rock bush, soho, solar size, solar telescope, spacecraft, stanford university, sun

A group of scientists from Hawaiʻi, Brazil and California has measured the diameter of the Sun with unprecedented accuracy by using a spacecraft to time the transits of the planet Mercury across the face of the Sun in 2003 and 2006.

The measurements of the Sun’s size were made by University of Hawaiʻi at Mānoa Institute for Astronomy scientists Drs. Marcelo Emilio (visiting from Ponta Grossa, Brazil), Jeff Kuhn and Isabelle Scholl in collaboration with Dr. Rock Bush of Stanford University. They used the Michelson Doppler Imager (MDI) aboard NASA’s Solar and Heliospheric Observatory (SOHO) to make the measurements. (more…)

Report Captures Picture of Global Opportunity Divide for Largest Youth Population in History

By Guest PostMarch 27, 2012Technologyafrica, brazil, britain works, cape town, eastern daylight time, employment, global, imagine cup, international youth foundation, iyf, iyf program, jobs, mexican youths, Microsoft, monica njau, naadiya moosajee, nairobi, ngos, opportunity for action, planet, sawomeng, Science, South Africa, sub-saharan, Technology, Thailand, the atlantic, william reese, youths echo

*Youths echo findings from International Youth Foundation report, which urges actions to help young people succeed.*

REDMOND, Wash. — March 27, 2012 — The numbers are staggering: Our planet has the largest youth population ever, with more than 1 billion people aged 15 to 24, and the figure is racing to 1.5 billion by 2035, according to “Opportunity for Action,” a new report being released today from the International Youth Foundation (IYF). The report shows that while some youths are succeeding, millions of others are not because they don’t have access to the necessary education, skills and opportunities.

Microsoft commissioned the “Opportunity for Action” report to bring attention to the urgency of the global youth opportunity divide — the gap between those who have access to a good education and the technology, skills and connections to be successful, and those who do not. No region of the world escapes the unsettling picture captured by the report. In Brazil, approximately 40 percent of firms have difficulty finding qualified staff to fill job vacancies due to low-quality education. In Asia, 70 percent of working youths are engaged in the agricultural sector, where jobs are seasonal and offer no protections or access to safety nets. And in sub-Saharan Africa, youths are grossly under-employed, leaving 72 percent of young people living on less than two dollars per day. (more…)

Gulf of Mexico Oil Spill’s Effects on Deep-Water Corals

By Guest PostMarch 27, 2012Environmentalvin, charles fisher, christopher german, corals, deep sea, deep water coral, deepwater horizon, ecosystem, erik cordes, gas chromatography, gulf of mexico, haverford college, helen white, jason, macondo spill, national science foundation, ocean, oil, oil spill, pen yuan hsing, penn state university, Pennsylvania, petroleum analysis, petroleum hydrocarbon, psu, rapid grant, rodey batiza, rov, submarine, temple university, timothy shank, two dimensional, U.S. Geological Survey, whoi

*Damaged deep-sea corals discovered months after Deepwater Horizon spill*

Scientists are reporting new evidence that the Deepwater Horizon oil spill has affected marine life in the Gulf of Mexico, this time species that live in dark ocean depths–deepwater corals.

The research used a range of underwater vehicles, including the submarine Alvin, to investigate the corals. The findings are published this week in the journal Proceedings of the National Academy of Sciences (PNAS). (more…)

Study: Including Ads in Mobile Apps Poses Privacy, Security Risks

By Guest PostMarch 27, 2012Technologyad libraries, Ads, ahmad reza sadeghi, android malware, apple, code, google play, internet, michael grace, mobile application, mobile networks, phone, privacy, rootsmart, security risk, tucson, wu zhou, xuxian jiang

Researchers from North Carolina State University have found that including ads in mobile applications (apps) poses privacy and security risks. In a recent study of 100,000 apps in the official Google Play market, researchers noticed that more than half contained so-called ad libraries. And 297 of the apps included aggressive ad libraries that were enabled to download and run code from remote servers – which raises significant privacy and security concerns.

“Running code downloaded from the Internet is problematic because the code could be anything,” says Dr. Xuxian Jiang, an assistant professor of computer science at NC State and co-author of a paper describing the work. “For example, it could potentially launch a ‘root exploit’ attack to take control of your phone – as demonstrated in a recently discovered piece of Android malware called RootSmart.” (more…)

Geologists Correct a Rift in Africa

By Guest PostMarch 26, 2012Scienceafrica today, australia, climate change, earth crust, east africa, east african rift, eric roberts, ethiopia, geological sciences, giant arc, great rift valley, human evolution, human species, james cook university, Kenya, malawi, michael gottfried, michigan state university, model, nancy stevens, nature geoscience, ohio university, plate boundary, rukwa rift, system, tectonic forces, uganda, vertebrate fossils, volcanic ash

EAST LANSING, Mich. — The huge changes in the Earth’s crust that influenced human evolution are being redefined, according to research published today in Nature Geoscience.

The Great Rift Valley of East Africa – the birthplace of the human species – may have taken much longer to develop than previously believed.

“We now believe that the western portion of the rift formed about 25 million years ago, and is approximately as old as the eastern part, instead of much younger as other studies have maintained,” said Michael Gottfried, Michigan State University associate professor of geological sciences. “The significance is that the Rift Valley is the setting for the most crucial steps in primate and ultimately human evolution, and our study has major implications for the environmental and landscape changes that form the backdrop for that evolutionary story.” (more…)

The Gene That Can Transform Mild Influenza in to a Life Threatening Disease

By Guest PostMarch 26, 2012Healthgene variant, genetic screen, infection with influenza, influenza, life threatening disease

A genetic finding could help to explain why influenza becomes a life-threatening disease for some people, and yet has only a mild effect on others. Collaborative research led by scientists at UCL and the Wellcome Trust Sanger Institute found that people who carry a particular variant of the IFITM3 gene are significantly more likely to be hospitalised when they fall ill with influenza than those who carry other variants. (more…)

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