Monday, March 16, 2009

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News

Sea Level Rise Due To Global Warming Poses Threat To New York City

Posted: 16 Mar 2009 08:00 AM PDT

Global warming is expected to cause the sea level along the northeastern US coast to rise almost twice as fast as global sea levels during this century, putting New York City at greater risk for damage from hurricanes and winter storm surge, according to a new study.

Natural Approach For HIV Vaccine

Posted: 16 Mar 2009 08:00 AM PDT

By harnessing the natural immune response in "slow progressing" HIV patients, researchers suggest that an effective HIV vaccine may come from a shotgun approach using of a wide range of natural antibodies, rather than from an engineered magic bullet.

Simple Filter Delivers Clean, Safe Drinking Water, Potentially To Millions

Posted: 16 Mar 2009 08:00 AM PDT

As an efficient, inexpensive, low-tech way to treat water, new research could bring clean, safe drinking water to potentially millions upon millions of people.

Shining Light On Diabetes-related Blindness

Posted: 16 Mar 2009 08:00 AM PDT

A group of scientists in California is trying to develop a cheaper, less invasive way to spot the early stages of retinal damage from diabetic retinopathy, the leading cause of blindness in American adults, before it leads to blindness. The scientists are using beams of light to measure blood flow in the back of the eye.

Spinning Carbon Nanotubes Spawns New Wireless Applications

Posted: 16 Mar 2009 08:00 AM PDT

Scientists have discovered new uses by spinning carbon nanotubes into longer fibers with additional useful properties. Researchers have found that carbon nanotube threads work well as an antenna because of something called the "skin effect."

Reward Elicits Unconscious Learning In Humans

Posted: 16 Mar 2009 08:00 AM PDT

A new study challenges the prevailing assumption that you must pay attention to something in order to learn it. The research demonstrates that stimulus-reward pairing can elicit visual learning in adults, even without awareness of the stimulus presentation or reward contingencies.

Anger And Hostility Harmful To The Heart, Especially Among Men

Posted: 16 Mar 2009 05:00 AM PDT

Anger and hostility are significantly associated with both a higher risk for coronary heart disease (CHD) in healthy individuals and poorer outcomes in patients with existing heart disease, according to the first quantitative review and meta-analysis of related studies. Management of anger and hostility may be an important adjuvant strategy in preventing CHD in the general public and treating CHD patients, according to authors.

Children Can Complete Treatment For Peanut Allergies And Achieve Long-term Tolerance, Studies Suggest

Posted: 16 Mar 2009 05:00 AM PDT

A carefully administered daily dose of peanuts has been so successful as a therapy for peanut allergies that a select group of children is now off treatment and eating peanuts daily, report doctors at Duke University Medical Center and Arkansas Children's Hospital. The procedure should not be attempted without medical supervision.

Researchers Study Cave’s 'Breathing' For Better Climate Clues

Posted: 16 Mar 2009 05:00 AM PDT

Researchers are studying the way caves "breathe" to providing new insights into the process by which scientists study paleoclimates.

Vitamin C Intake Associated With Lower Risk Of Gout In Men

Posted: 16 Mar 2009 05:00 AM PDT

Men with higher vitamin C intake appear less likely to develop gout, a painful type of arthritis, according to a new report.

Ninth Warmest February For Globe, NOAA

Posted: 16 Mar 2009 05:00 AM PDT

The combined global land and ocean surface average temperature for February 2009 was the ninth warmest since records began in 1880, according to an analysis by NOAA.

Nice Guys Can Finish First And So Can Their Teams

Posted: 16 Mar 2009 05:00 AM PDT

A person who gives his or her "all" to the team can influence that team to become more efficient in achieving its goals by making cooperative, collective behavior seem acceptable and appropriate, and thereby encouraging others to act similarly.

Female Birds 'Jam' Their Mates' Flirtatious Songs

Posted: 16 Mar 2009 02:00 AM PDT

When a single female is nearby, female antbirds will sing over the songs of their male partners in an apparent attempt to keep their messages from getting through, according to a new study. Males respond to that interruption by singing a different tune.

Nanotechnology Coating Could Lead To Better Brain Implants To Treat Diseases

Posted: 16 Mar 2009 02:00 AM PDT

Biomedical and materials engineers have developed a nanotech coating for brain implants that helps the devices operate longer and could improve treatment for deafness, paralysis, blindness, epilepsy and Parkinson's disease.

Burgundy Wine Has Long History In France: Remains Of Gallo-Roman Vineyard Discovered In Gevrey-Chambertin

Posted: 16 Mar 2009 02:00 AM PDT

Gevrey-Chambertin, 12 km from Dijon, France, is famous throughout the world for its Burgundy wines. It is now clear that winegrowing in this region goes back to the Gallo-Roman era at the spot known as "Au dessus de Bergis". The archeological dig revealed 316 rectangular pits aligned in 26 rows, interpreted as being the remains of a vineyard from the first century AD.

New Staging Technique Might Save Bladders In Some Bladder Cancer Patients

Posted: 16 Mar 2009 02:00 AM PDT

Pathologists reported encouraging results from a new tumor staging technique that could reduce the need to remove bladders from some patients.

Inserting Catheters Without X-rays

Posted: 16 Mar 2009 02:00 AM PDT

X-rays penetrate the patient's body, helping the doctor guide the catheter through the artery. In future, it will be possible to monitor the position of the catheter without exposing the patient to X-ray radiation, and without the need for a contrast medium.

Perinatal Environment Influences Aggression In Children

Posted: 16 Mar 2009 02:00 AM PDT

Even after being socialized, seven percent of boys will continue to be hyper-aggressive until the age of nine. According to a new study, this small sub-group of aggressive children has a different makeup than non-aggressive children.

Common Genes Tied To Alcohol, Nicotine, Cocaine Addictions

Posted: 15 Mar 2009 11:00 PM PDT

For decades, finding clues to substance addiction has been much like searching for a needle in a haystack. But researchers may finally be honing in on specific genes tied to all types of addictions - and finding that some of the same genes associated with alcohol dependence are also closely linked with addictions to nicotine, cocaine, opoids, heroin and other substances.

Migraines Increase Stroke Risk During Pregnancy

Posted: 15 Mar 2009 11:00 PM PDT

Women who suffer migraines are at an increased risk of stroke during pregnancy as well as other vascular conditions such as heart disease, high blood pressure and blood clots, concludes a new study.

Seaweed And Fireflies Brew May Guide Stem Cell Treatment For Peripheral Artery Disease

Posted: 15 Mar 2009 11:00 PM PDT

An unlikely brew of seaweed and glow-in-the-dark biochemical agents may hold the key to the safe use of transplanted stem cells to treat patients with severe peripheral arterial disease, according to a team of veterinarians, basic scientists and interventional radiologists.

Safe, Quick Technique For Eliminating Reblockage Of Arteries Following Angioplasty

Posted: 15 Mar 2009 11:00 PM PDT

An easily implementable technique to avoid reblockage of arteries that have been cleared through angioplasty and stent insertion has been developed by researchers. Angioplasty is the "gold-standard" treatment for acute myocardial infarction (heart attack), which is the result of abrupt interruption in blood supply to part of the beating heart, usually due to plaque-rupture in an atherosclerotic (hardened) coronary artery.

The Agulhas Current, In The Southern Hemisphere, May Influence Climate In Europe

Posted: 15 Mar 2009 11:00 PM PDT

Researchers studying the Agulhas Current and the ensuing warm water transports from the tropical Indian Ocean to the southern tip of Africa can show that evidence in support of the hypothesis that the Agulhas water "leakage" into the Atlantic can affect the climate in Europe.

Single Question Can Identify Unhealthy Alcohol Use In Patients

Posted: 15 Mar 2009 11:00 PM PDT

Researchers at Boston Medical Center have found that a single-screening question recommended by the National Institute of Alcohol Abuse and Alcoholism accurately identifies unhealthy alcohol use in primary-care patients. The recommended question asks, "How many times in the past year have you had X or more drinks in a day?" (where X is 5 for men and 4 for women).

Rabies Deaths From Dog Bites Could Be Eliminated Globally

Posted: 15 Mar 2009 09:00 PM PDT

Someone in the developing world -- particularly in rural Africa -- dies from a rabid dog bite every 10 minutes. But global elimination of this horrific disease appears to be possible, according to scientists.

Optimistic Worms Are Ready For Rapid Recovery, Biologists Find

Posted: 15 Mar 2009 08:00 PM PDT

For the tiny soil-dwelling nematode worm Caenorhabditis elegans, life is usually a situation of feast or famine. Researchers have found that this worm has evolved a surprisingly optimistic genetic strategy to cope with these disparate conditions -- one that could eventually point the way to new treatments for a host of human diseases caused by parasitic worms.

New Insights On Heart's 'Fight Or Flight' Response To Stress

Posted: 15 Mar 2009 08:00 PM PDT

Even for those without a heart condition, it's a peculiar feeling when your heart "races" in response to stress. That pacing change happens in part because of how the enzyme calcium/calmodulin-dependent protein kinase II is called into action by the body's "fight or flight" stress response, researchers have found.

Kiwifruit: Curious Chromosomes Of A Curious Fruit

Posted: 15 Mar 2009 08:00 PM PDT

Incipient sex chromosomes have been found in New Zealand's eponymous export, the kiwifruit. Researchers have mapped the kiwifruit genome and pin-pointed the sex-determining locus.

Diabetes And Elevated Levels Of Cholesterol Linked To Faster Cognitive Decline In Alzheimer's Patients

Posted: 15 Mar 2009 08:00 PM PDT

A history of diabetes and elevated levels of cholesterol, especially LDL cholesterol, are associated with faster cognitive decline in patients with Alzheimer's disease, according to a new study. These results add further evidence of the role of vascular risk factors in the onset and progression of Alzheimer's disease.

Aphids Borrowed Bacterial Genes To Play Host

Posted: 15 Mar 2009 08:00 PM PDT

Most aphids host mutualistic bacteria, Buchnera aphidicola, which live inside specialized cells called bacteriocytes. Buchnera are vital to the aphids well being as they provide essential amino acids that are scarce in its diet. New research suggests that the aphids' ability to host Buchnera depends on genes they acquired from yet another species of bacteria via lateral gene transfer.

Feeling Blue? New Insight To Predicting Consumer Emotions

Posted: 15 Mar 2009 08:00 PM PDT

Whether choosing between a movie and a play, deciding whether to attend a sporting event shortly before an important event or selecting an indulgent breakfast treat in anticipation of a tough day at work, consumers' choices are often guided by how they expect their purchase will make them feel. New research reveals that how we go about predicting our emotions can lead to very different outcomes.

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