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279,036 articles from PhysOrg

Why are sunspots a source of radio emissions? Researcher explains more

Why sunspots are a strong source of radio emissions and what information those emissions carry will be the focus of an invited talk by NJIT Research Professor Jeongwoo Lee tomorrow at the International Astronomical Union Symposium on the Physics of Sun and Star Spots in Ventura, CA. The event numbers among the top gatherings in the U.S. for people studying sunspots and related phenomena.

Bacteria make thrift a habit, researchers find

(PhysOrg.com) -- In these lean times, smart consumers refuse to pay a lot for throwaway items, but will shell out a little more for products that can be used again and again. The same is true of bacteria and other microbes, researchers at the University of Michigan have learned.

Egg cooling would lessen salmonella illnesses, scientist says

While people across the country have been sickened by a recent outbreak of salmonella poisoning possibly linked to eggs from Iowa producers, a Purdue University food scientist believes the poultry industry could implement a rapid egg cooling technology to reduce future outbreaks.

Nanomagnets purify blood

Swiss scientists have succeeded in clearing a toxin from blood in just a few minutes, using specially produced nanomagnets. The procedure appears promising. If the method can be put into practice, it could one day help people with blood poisoning quickly and efficiently.

On organic coffee farm, complex interactions keep pests under control

(PhysOrg.com) -- Proponents of organic farming often speak of nature's balance in ways that sound almost spiritual, prompting criticism that their views are unscientific and naďve. At the other end of the spectrum are those who see farms as battlefields where insect pests and plant diseases must be vanquished with the magic bullets of modern agriculture: pesticides, fungicides and the like.

Scientists uncover new mechanism of memory formation

Scientists from the Florida campus of The Scripps Research Institute have discovered a mechanism that plays a critical role in the formation of long-term memory. The findings shed substantial new light on aspects of how memory is formed, and could lead to novel treatments for memory disorders.

The Medical Minute: Parents and schools can team up to beat obesity

With the launch of First Lady Michelle Obama`s Let`s Move campaign this past February, now more than ever schools are being placed at the forefront of addressing the childhood obesity epidemic. According to the U.S. Centers for Disease Control and Prevention, one in three children is considered obese or overweight, and the percentage of children who are overweight has tripled in the past 30 years.

The mutating Mars hoax

It spreads, it mutates, it refuses to die. For the seventh year in a row, the Mars Hoax is infecting email boxes around the world. Passed from one reader to another, the message states that on August 27th Mars will approach Earth and swell to the size of a full Moon. "NO ONE ALIVE TODAY WILL EVER SEE THIS AGAIN," the email declares--always in caps.

Where are you? A rundown of Facebook's Places

(AP) -- Services based on your location, such as Foursquare, are popular in the tech-centric bubbles of Silicon Valley and New York City. But for many people, these services remain odd - and potentially creepy - tools on your smart phone to let friends or even strangers know you just showed up to a restaurant, gym or the corner deli.

North American continent is a layer cake, scientists discover

The North American continent is not one thick, rigid slab, but a layer cake of ancient, 3 billion-year-old rock on top of much newer material probably less than 1 billion years old, according to a new study by seismologists at the University of California, Berkeley.

Scientists develop the first atomic view of key genetic processes (w/ Video)

In a landmark study to be published in the journal Nature, scientists have been able to create the first picture of genetic processes that happen inside every cell of our bodies. Using a 3-D visualization method called X-ray crystallography, Song Tan, an associate professor of biochemistry and molecular biology at Penn State University, has built the first-ever image of a protein interacting with...