By studying the roles two proteins, thrombospondin-1 and prosaposin, play in discouraging cancer metastasis, scientists have identified a five-amino acid fragment of prosaposin that significantly reduces metastatic spread in mouse models of prostate, breast and lung cancer. The findings suggest that a prosaposin-based drug could potentially block metastasis in a variety of cancers.

Using a "patient monitoring" device attached to a whale entangled in fishing gear, scientists showed for the first time how fishing lines changed a whale's diving and swimming behavior. The monitoring revealed how fishing gear hinders whales' ability to eat and migrate, depletes their energy as they drag gear for months or years, and can result in a slow death.

Dietary advice on added sugar is damaging our health, warns a cardiologist. He believes that "not only has this advice been manipulated by the food industry for profit but it is actually a risk factor for obesity and diet related disease."

The gap between life expectancy in patients with a mental illness and the general population has widened since 1985 and efforts to reduce this gap should focus on improving physical health, suggest new research.

Young people who undergo CT scans are 24 percent more likely to develop cancer compared with those who do not, a study published today on bmj.com suggests. However the absolute excess for all cancers combined was low, at 9.38 for every 100,000 person years of follow-up.

Random mutations and genetic drift, rather than design principles, may explain the emergence of regulatory network properties in E. coli.

Having the biggest playlist doesn't make a male songbird the brainiest of the bunch, a new study shows. In a series of problem-solving tests with the birds, researchers found that the male song sparrows that sang the most songs learned to solve food-finding puzzles more slowly than the birds singing fewer songs. The results are the first to show that a larger song repertoire links to cognitive deficits in other mental processes.

How does the bacterium Shigella -- the cause of a deadly diarrheal disease -- detect that it's in a human host? Scientists have found that a biological "RNA thermometer" monitors whether the environment is right for the bacterium to produce the factors it needs to survive within the body, according to a new study.

Researchers have developed and tested a solar-powered nano filter that is able to remove harmful carcinogens and antibiotics from water sources -- lakes and rivers -- at a significantly higher rate than the currently used filtering technology made of activated carbon.

Trends in Helicobacter pylori and smoking explain a significant proportion of the decline of intestinal-type noncardia gastric adenocarcinoma incidence in US men between 1978 and 2008, and are estimated to continue to contribute to further declines between 2008 and 2040.

Activating an enzyme known to play a role in the anti-aging benefits of calorie restriction delays the loss of brain cells and preserves cognitive function in mice, according to a new study. The findings could one day guide researchers to discover drug alternatives that slow the progress of age-associated impairments in the brain.

A drug commonly used to treat depression and anxiety may improve a stress-related heart condition in people with stable coronary heart disease, according to researchers at Duke Medicine.

If the Pentagon's not careful, it's going to find its new network of spies rolled up by Congress.

An anonymous reader writes "Seth Ladd has an excellent write-up of Dart: 'When Dart was originally launched, many developers mistook it for some sort of Java clone. In truth, Dart is inspired by a range of languages such as Smalltalk, Strongtalk, Erlang, C#, and JavaScript. Get past the semicolons and curly braces, and you'll see a terse language without ceremony. ... Dart understands that sometimes you just don’t feel like appeasing a ceremonial type checker. Dart’s inclusion of an optional type system means you can use type annotations when you want, or use dynamic when that’s easier. For example, you can explore a new idea without having to first think about type hierarchies. Just experiment and use var for your types. Once the idea is tested and you’re comfortable with the design, you can add type annotations."

Read more of this story at Slashdot.

New submitter QuantumPion writes "The Environmental Protection Agency released draft guidelines last month that could significantly relax radiation hazard standards in the case of a radiological event in the United States by using risk-based decisions. The goal is to have limits that make sense in an emergency that are different from the limits in day-to-day life. From the article: 'Currently, the only guidance are the extremely strict standards that apply for EPA Superfund sites and nuclear plant decommissioning, which are as low as 0.010–0.025 rem/year, far below the natural background levels in the U.S. of 0.300 rem/year, and even well below the average amount of radioactive materials that Americans eat each year. And these guidelines aren’t really different from the 1992 PAG, except in the area of long-term cleanup standards and, perhaps, standards for resettlement. What’s the big deal here? As radworkers, we’re allowed to get 5 rem/year. 2 rem/year doesn’t rate a second thought. ... No one has ever been harmed by 5 rem/year, so setting emergency levels at 2 rem/year is pretty mild and more than reasonable. ... Think of it this way. The situations covered by these new guidelines are similar to someone dying of thirst who has the chance to drink fresh water having 2,000 pCi per gallon of radium in it. While the safe drinking water levels are 20 pCi/gal for Ra, 2,000 pCi/gal is of no threat, especially if you’re going to die from imminent dehydration. Of course, a bag of potato chips has 3,500 picocuries, so go figure.'"

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China is intent on becoming a major space power.

See photos of the Oklahoma tornadoes that struck on May 20, 2013, as viewed from space.

Nerval's Lobster writes "Fresh off purchasing Tumblr for $1.1 billion, Yahoo has moved to the next stage of what's becoming a company-wide reboot: fixing Flickr, the photo-sharing service that it acquired in 2005 and subsequently allowed to languish. Yahoo boosted Flickr accounts' individual storage capacity to one free terabyte, revamped the Website's overall look, and launched a new Flickr app for Google Android, among other tweaks. Yahoo CEO Marissa Mayer clearly wants her company to fight toe-to-toe on features with Google and Facebook, but she faces a long road ahead of her: not only does she need to streamline Yahoo's cumbersome corporate structure and product portfolio into something that resembles fighting shape, but she needs to reverse the general perception that Yahoo is teetering on the edge of history's trash-bin, with an aging customer base and unexciting features. The question is, could anyone actually pull it off? Is Yahoo capable of an Apple-style turnaround, or are its current actions merely delaying the inevitable?"

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The 3D food printer could one day be used to feed astronauts on long-duration space missions.

If you're looking to maximize the volume of the tunes streaming from your mobile device, regular earbuds or over-ear headphones just won't cut it. What you need is a headphone amplifier like, say, NuForce's new Mobile Music Pump.