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Leviathans battle in remote depths: Great white sharks may migrate so they can dine on giant squids

In what could be the ultimate marine smack-down, great white sharks off the California coast may be migrating 1,600 miles west to do battle with creatures that rival their star power: giant squids.

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Central American shrimp, lobster fast disappearing

Illegal fishing and climate change are decimating shrimp and lobster populations in Central America, threatening a two-billion-dollar industry and 136,000 jobs, regional experts said Thursday.

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Experts say US doctors overtesting, overtreating

(AP) -- Too much cancer screening, too many heart tests, too many cesarean sections. A spate of recent reports suggest that too many Americans - maybe even President Barack Obama - are being overtreated.

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Pain: Why it's 'ow' for me and 'YOW!' for you

Ever noticed how two people can suffer from back pain, say, but one will moan and groan and take to bed while the other will get up and about and on with life? Pain specialists have often noted that conditions that seem similar on the outside can cause widely varying amounts of reported pain.

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Web will be 'critical' revenue source for Times: publisher

Charging online readers will give The New York Times a critical second revenue stream but the print newspaper will be important for "many years to come," publisher Arthur Sulzberger said Thursday.

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Molecular basis for Pseudomonas aeruginosa persistent infections in CF patients

New research reveals Small Colony Variants (SCVs) of P. aeruginosa to be a hallmark of chronic infection in cystic fibrosis (CF) patients. Results, published March 12th in the open-access journal PLoS Pathogens, suggest that SCV-mediated persistence might be a good target for antimicrobial chemotherapy.

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Research sheds light on the inner workings of the inflammatory response to Leishmaniasis

The secret world of inflammation is slowly being revealed by the application of advanced techniques in microscopy, as shown in a study published March 12 in the open-access journal PLoS Pathogens. Researchers at the Hull York Medical School and the University of York used 2-photon microscopy to identify how killer T lymphocytes behaved when they enter sites of inflammation caused by the parasite Leishmania donovani, and which infected cells they were able to recognise.

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Chinese minister insists Google obey the law

(AP) -- China's top Internet regulator insisted Friday that Google must obey its laws or "pay the consequences," giving no sign of a possible compromise in their dispute over censorship and hacking.

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Lenovo says business will focus on mobile Internet

(AP) -- Lenovo Group expects wireless Internet products to account for up to 80 percent of its sales within five years as it pursues expansion in faster-growing emerging markets, CEO Yang Yuanqing said Friday.

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Starving sea lion pups wash up on Calif. beaches

(AP) -- Marine mammal experts say dozens of hungry and sick sea lion pups have washed up on Southern California beaches this winter and many have died at rescue centers.

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February video game sales drop 15 percent

(AP) -- U.S. retail sales of video games declined 15 percent in February, hurt in part by an ongoing decline in sales of music games and lower sales of the Wii system.

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Twitter unveils tool to share tweeting locations

(AP) -- Twitter can now let the world automatically know your whereabouts as well as your thoughts and activities.

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'Uncharted 2' nabs 5 trophies at video game awards

(AP) -- "Uncharted 2: Among Thieves" stole the show at the Game Developers Choice Awards.

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Precision M4500: Dell Unleashes the World's Most Powerful 15.6-inch Mobile Workstation

The Dell Precision M4500 is the world's most powerful 15.6" mobile workstation with Intel Core i7 Extreme edition processor and NVIDIA Quadro FX 1800M GFX graphics solution.

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Obesity and alcohol act together to increase the risk of liver disease

Two studies published in the British Medical Journal today show that obesity and alcohol act together to increase the risk of liver disease in both men and women.

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Effects of lifestyle and exposures are mirrored in blood gene expression

A study by Norwegian and French researchers hopes to provide new understanding of how blood cells adjust gene expression in response to various clinical, biochemical and pathological conditions. The Norwegian Woman and Cancer (NOWAC) postgenome study, published March 12 in the open-access journal PLoS Genetics, highlights numerous blood gene sets affected by one's physical condition, lifestyle factors and exposure variables.

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Enabling women to use home test kits could increase HPV detection

More high risk cases of human papilloma virus (HPV) could be detected by offering home testing kits to women who do not come forward for cervical screening, according to research published in the British Medical Journal today.

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Hubert's remnants still raining on southern Madagascar

Hubert may not be a tropical storm now that it has made landfall in southeastern Madagascar, but it's still a formidable and large storm system. NASA's Aqua satellite revealed that there are still some very high, strong thunderstorms in Hubert's remnants as it continues to bring rains and gusty winds to southeast and south-central Madagascar.

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RASICAM: The Little Infrared Camera that Could

(PhysOrg.com) -- Perched on a peak high in the Chilean Andes, 2200 meters above sea level, the Cerro Tololo Inter-American Observatory has an enviable view of the night sky. In 2011, the Dark Energy Survey collaboration will install the largest digital camera ever built inside the Cerro Tololo dome to gaze deep into the universe. And sitting nearby, gazing at something a little closer to earth, will be the SLAC-built Radiometric All Sky Infrared Camera, or RASICAM.

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Second only south Atlantic tropical storm: 90Q, moving away from Brazil

Tropical Storm 90Q is the second known tropical cyclone to form in the cooler South Atlantic Ocean, and two NASA satellites confirm it is now moving away from Brazil's coast. The first tropical cyclone ever seen in recorded history in the Southern Atlantic was called "Catarina" in 2004.

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Italy to host Europe's biggest solar plant: company

Europe's most powerful solar power plant is set to start operations in Italy later this year, the US company building the installation on an area as large as 120 football pitches said on Thursday.

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Chopper Crash Test a Smash Hit (w/ Video)

The second crash test of a small lightweight helicopter at NASA's Langley Research Center in Hampton, Va., was a smashing success, literally -- just as engineers had predicted.

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Text message erasing application goes international

A California start-up on Thursday went international with a TigerText iPhone application that lets people kill embarrassing text messages after they have been sent out.

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Contraceptive pill not associated with increased long-term risk of death

Women in the UK who have ever used the oral contraceptive pill are less likely to die from any cause, including all cancers and heart disease, compared with never users, according to research published in the British Medical Journal today.

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Yellow fever strikes monkey populations in South America

A group of Argentine scientists, including health experts from the Wildlife Conservation Society, have announced that yellow fever is the culprit in a 2007-2008 die-off of howler monkeys in northeastern Argentina, a finding that underscores the importance of paying attention to the health of wildlife and how the health of people and wild nature are so closely linked.

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Barrier in mosquito midgut protects invading pathogens

Scientists studying the Anopheles gambiae mosquito - the main vector of malaria - have found that when the mosquito takes a blood meal, that act triggers two enzymes to form a network of crisscrossing proteins around the ingested blood. The formation of this protein barrier, the researchers found, is part of the normal digestive process that allows so-called "healthy" or commensal gut bacteria to grow without activating mosquito immune responses. But there is a downside: The barrier also prevents the mosquito's immune defense system from clearing any disease-causing agents that may have slipped into the blood meal, such as the Plasmodium malaria parasite, which in turn can be passed on to humans.

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VeriSign to spend more than $300M on tech upgrades (Update)

VeriSign Inc., whose technology is key to allowing Internet users to access Web sites with names ending in ".com" and ".net," plans to spend more than $300 million over the next decade to upgrade its systems.

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Minnesota researchers discover how electricity moves through cells

(PhysOrg.com) -- Researchers at the University of Minnesota have created a molecular image of a system that moves electrons between proteins in cells. The achievement is a breakthrough for biology and could provide insights to minimize energy loss in other systems, from nanoscale devices to moving electricity around the country.

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Rethinking guidelines for treating high blood pressure: Variability is a risk factor too

Hypertension is the most prevalent treatable risk factor for stroke. One in two adults are affected by it, and the risk of being hypertensive during a lifetime is about 90%. Despite this, the underlying mechanisms by which raised blood pressure can cause cardiovascular disease are poorly understood. Clinical guidelines for the diagnosis and treatment of hypertension focus heavily on mean systolic blood pressure.

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Children with chronic respiratory illness are vulnerable to critical H1N1

As critical care professionals develop a better understanding of the progression of H1N1, they are becoming better prepared to treat children with severe cases, according to a new study that will be published in the March issue of Pediatric Critical Care Medicine (PCCM).

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