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279,047 articles from PhysOrg
Mexico City air pollution adversely affects the hearts of young people
A post-mortem study of the hearts of 21 young people in Mexico City has found that the heart begins to show the adverse effects of air pollution at a young age and that tiny bits of inactivated bacteria that hitch a ride on pollutants may make the problem worse.
Military develops multi-purpose 'green' decontaminants for terrorist attack sites
Chemists with the United States military have developed a set of ultra-strength cleaners that could be used in the aftermath of a terrorist attack. The new formulas are tough enough to get rid of nerve gas, mustard gas, radioactive isotopes, and anthrax. But they are also non-toxic, based on ingredients found in foods, cosmetics, and other consumer products. A detailed evaluation of the cleansers...
Most states offer HPV vaccinations to girls in juvenile justice system
Nearly all U.S. states offer the human papillomavirus (HPV) vaccine to adolescent girls who have been arrested or detained, according to a new report from The Miriam Hospital and Brown University. The study, published in the May issue of the Journal of Adolescent Health, offers the first nationwide review of HPV vaccination practices among juvenile justice facilities.
Nuvu Cameras to commercialize world's most sensitive camera
Olivier Daigle, recipient of the People's Choice Award for discovery of the year given by Quebec Science magazine, has launched a new company with his partner, Marie-Eve Ducharme. Nuvu Cameras will commercialize their EMCCD camera, which is considered to be the most sensitive in the world.
Report: Most Americans still live in unclean air
(AP) -- Six in 10 Americans - about 175 million people - are living in places where air pollution often reaches dangerous levels, despite progress in reducing particle pollution, the American Lung Association said in a report released Wednesday.
Research shows part of Alaska inundated by ancient megafloods
New research indicates that one of the largest fresh-water floods in Earth's history happened about 17,000 years ago and inundated a large area of Alaska that is now occupied in part by the city of Wasilla, widely known because of the 2008 presidential campaign.
Webb Telescope Passes Mission Milestone
(PhysOrg.com) -- NASA's James Webb Space Telescope has passed its most significant mission milestone to date, the Mission Critical Design Review, or MCDR. This signifies the integrated observatory will meet all science and engineering requirements for its mission.
A clamp for emerging flu viruses
When the human body becomes infected with new influenza viruses, the immune system rapidly activates an inborn protective mechanism to inhibit the intruding pathogen. A protein known as Mx plays an important role in this process, keeping the spread of viruses in check. Exactly how Mx accomplishes this task was previously unknown. Now German virologists from the Institute of Medical Microbiology at...
ASTRO releases SBRT for lung cancer report
The American Society for Radiation Oncology (ASTRO) has released its Emerging Technology Committee's report evaluating the use of stereotactic body radiotherapy (SBRT) in lung cancer treatment.
It's electrifying: Scientists use electric fields to control chemical reactions of ultracold molecules
Physicists at JILA have demonstrated a new tool for controlling ultracold gases and ultracold chemistry: electric fields.
Medical conference finds Bolivar may have been poisoned
Could one of South America's greatest military figures have died from a deadly poison, rather than the tuberculosis assumed at the time of his death in 1830? The mysterious illness and death of Simon Bolivar - known as "El Libertador" or "The Liberator" - is the medical mystery in question at this year's Historical Clinicopathological Conference (CPC), sponsored by the University of Maryland...
Melting icebergs causing sea level rise
Scientists have discovered that changes in the amount of ice floating in the polar oceans are causing sea levels to rise.
Melting sea ice major cause of warming in Arctic, new study reveals
Melting sea ice has been shown to be a major cause of warming in the Arctic according to a University of Melbourne, Australia study.
MS study suggests key role of environmental factor in the disease
Scientists are reporting what they say is compelling evidence that some powerful non-heritable, environmental factor likely plays a key role in the development of multiple sclerosis.
MU researcher developing test for swallowing disorder treatments
Muscle degeneration and confinement to a wheelchair are the hallmarks of Lou Gehrig's disease, Parkinson's, muscular dystrophy and other neurodegenerative diseases. One of the silent, and most serious, symptoms of these diseases is losing the ability to swallow. Swallowing impairment, or dysphagia, affects about 500,000 people annually in the U.S., but little is known about the disorder and only a...
New microscopy technique reveals mechanics of blood cell membranes
Thanks to an interdisciplinary team of researchers, scientists now have a more complete understanding of one of the human body's most vital structures: the red blood cell.
Pigs provide clues on cystic fibrosis lung disease
Aided by a new experimental model, scientists are a step closer to understanding how cystic fibrosis (CF) causes lung disease in people with the condition. The findings, published online April 28 in the journal Science Translational Medicine, could help improve treatments for lung disease, which causes most of the deaths and disability among people with CF.
Researchers produce first Iraqi-to-English speech-to-speech translation app
Researchers at Jibbigo LLC and Carnegie Mellon University's International Center for Advanced Communication Technologies (interACT) have developed a new application for Apple's iPhone 3GS that performs speech-to-speech and speech-to-text translation between English and the Iraqi dialect of Arabic.
Scientists finds evidence of water ice on asteroid's surface
Asteroids may not be the dark, dry, lifeless chunks of rock scientists have long thought.
Scientists solve protein structure revealing secrets of cell membranes
A team of scientists at The Scripps Research Institute and the National Institutes of Health (NIH) has discovered the structure of a protein that pinches off tiny pouches from cells' outer membranes. Cells use these pouches, or vesicles, to carry nutrients and other essential substances, but many medicines also hitch a ride inside them.
Study shows why cholesterol damages arteries
The presence of crystalline cholesterol in the walls of our arteries is a major cause of life-threatening inflammation. This has been demonstrated in a study jointly run by the universities of Massachusetts, Bonn and Munich. The potential consequences include heart attack, stroke or sudden cardiac death. The researchers' results will be published in the next edition of the scientific journal...
Sustainable biofuels from forests, grasslands and rangelands
The promise of switchgrass, the challenges for forests and the costs of corn-based ethanol production: Ecological scientists review the many factors surrounding biofuel crop production and its implications on ecosystem health in three new Biofuels and Sustainability Reports. Produced by the Ecological Society of America (ESA), the nation's largest organization of ecological scientists, and...
Automakers go 'green' in Beijing
Dozens of carmakers are showing off "green" vehicles at the Beijing Auto Show as they position themselves for a hoped-for alternative-energy boom in the world's biggest auto market.
Developing world will produce double the e-waste of developed countries by 2016
Developing countries will be producing at least twice as much electronic waste (e-waste) as developed countries within the next 6-8 years, according to a new study published in ACS' journal Environmental Science & Technology. It foresees in 2030 developing countries discarding 400 million - 700 million obsolete personal computers per year compared to 200 million - 300 million in developed...
Eliminating weeds could put more cows on the pasture
A weed calculator developed by an Agricultural Research Service (ARS) scientist tells ranchers the number of additional cows they could raise if they eliminated one or two widespread exotic invasive weeds.