Saturday, May 09, 2009

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News

Ultrasonic Communication Among Frogs

Posted: 09 May 2009 08:00 AM PDT

Scientists report on the only known frog species that can communicate using purely ultrasonic calls, whose frequencies are too high to be heard by humans. Known as Huia cavitympanum, the frog lives only on the Southeast Asian island of Borneo.

Good Genes: Late Motherhood Boosts Family Lifespan

Posted: 09 May 2009 08:00 AM PDT

Women who have babies naturally in their 40s or 50s tend to live longer than other women. Now, a new study shows their brothers also live longer, but the brothers' wives do not, suggesting the same genes prolong lifespan and female fertility, and may be more important than social and environmental factors.

EBay Has Unexpected, Chilling Effect On Looting Of Antiquities, Archaelogist Finds

Posted: 09 May 2009 08:00 AM PDT

Archaeologists held their breath more than a decade ago when the launch of eBay theoretically increased the market for looted archaeological treasures. In fact, eBay hasn't increased looting, as originally feared. By creating a market for increasingly sophisticated fakes, eBay has actually had a dampening effect on the market for looted antiquities.

Early Detection Of Lung Cancer

Posted: 09 May 2009 08:00 AM PDT

New data from several studies are useful in evaluating new techniques for early diagnosis and treatment of lung cancer.

Herschel And Planck Share Ride To Space

Posted: 09 May 2009 08:00 AM PDT

Two missions to study the cosmos, Herschel and Planck, are scheduled to blast into space May 14 aboard the same Ariane 5 rocket from the Guiana Space Center in French Guiana.

Patients With Excessive Sweating Condition Are More Likely To Develop Skin Infections

Posted: 09 May 2009 08:00 AM PDT

People with the excessive sweating condition known as hyperhidrosis already have to deal with a number of life-inhibiting social issues. Sweaty palms or unsightly underarm stains can make simple tasks such as shaking hands or raising an arm extremely embarrassing.

Way To Cut Cattle Methane, Threat To Environment, By 25 Percent

Posted: 09 May 2009 02:00 AM PDT

Beef farmers can breathe easier thanks to researchers who have developed a formula to reduce methane gas in cattle.

Memory For Different Smells: Synaptic Memory Found In Olfactory Bulb

Posted: 09 May 2009 02:00 AM PDT

Scientists have discovered a form of synaptic memory in the olfactory bulb, the part of the brain that processes the sense of smell.

Animals On Runways Can Cause Serious Problems At Small Airports

Posted: 09 May 2009 02:00 AM PDT

A study of 10 small Indiana airports found that animals can gain easy access to runways and infield area, increasing the likelihood of planes striking those animals. "Just about every pilot we talked to at these airports said that during a landing they've had to pull up to avoid hitting an animal on the runway," said one of the researchers.

First Study Of Combined Dietary Factors Finds Reduced AMD Risks

Posted: 09 May 2009 02:00 AM PDT

A diet that includes key nutrients and low-glycemic index foods is likely to reduce risks for age-related macular degeneration (AMD), according to the first study to analyze these factors in combination.

Optimizing Performance Of Nanowire Electronic And Optoelectronic Devices

Posted: 09 May 2009 02:00 AM PDT

Researchers have demonstrated, for the first time, that the activation energy of impurities in semiconductor nanowires is affected by the surrounding dielectric and can be modified by the choice of the nanowire embedding medium.

Undiagnosed Diabetes Takes Economic Toll

Posted: 09 May 2009 02:00 AM PDT

Approximately 6.3 million adults -- or one fourth of the people in the U.S. with diabetes mellitus -- are unaware they have the disease, and this undiagnosed population accounts for an estimated $18 billion in health care costs each year, according to a new study.

Increased Food Intake Alone Explains Rise In Obesity In United States, Study Finds

Posted: 08 May 2009 08:00 PM PDT

New research that uses an innovative approach to study, for the first time, the relative contributions of food and exercise habits to the development of the obesity epidemic has concluded that the rise in obesity in the United States since the 1970s was virtually all due to increased energy intake.

Iron Deficiency In Womb May Delay Brain Maturation In Preemies

Posted: 08 May 2009 08:00 PM PDT

Iron plays a large role in brain development in the womb, and new research shows an iron deficiency may delay the development of auditory nervous system in preemies. This delay could affect babies ability to process sound which is critical for later language development in early childhood.

Massage After Exercise Myth Busted

Posted: 08 May 2009 08:00 PM PDT

Scientists have blown open the myth that massage after exercise improves circulation to the muscle and assists in the removal of lactic acid and other waste products. Massage actually impairs blood flow to the muscle after exercise, and it therefore also impairs the removal of lactic acid from muscle after exercise.

Hypothyroidism In Women Associated With Liver Cancer

Posted: 08 May 2009 08:00 PM PDT

Women with a history of hypothyroidism face a significantly higher risk of developing liver cancer.

Low-angle Collision With Earth: The Elliptical Impact Crater Matt Wilson, Northern Territory, Australia

Posted: 08 May 2009 08:00 PM PDT

Nearly all meteorite impact craters on Earth are circular. Elongated crater structures are expected only at impacts at angles lower than 12 degrees from the horizontal. Geologists document the first elliptical crater on Earth that provides insights into the mechanisms of crater formation at low angles.

Job Loss Can Make You Sick, New Study Finds

Posted: 08 May 2009 08:00 PM PDT

In the face of rising unemployment and businesses declaring bankruptcy, a new study has found that losing your job can make you sick. Even when people find a new job quickly, there is an increased risk of developing a new health problem, such as hypertension, heart disease, heart attack, stroke or diabetes as a result of the job loss.

Ocean Carbon: Dent In Iron Fertilization Hypothesis Previously Proposed To Address Climate Change

Posted: 08 May 2009 05:00 PM PDT

Oceanographers have analyzed data from an iron-fertilization experiment in the Southern Ocean. Unfortunately most of the carbon from lush plankton blooms, both artificially fertilized and natural, never reached the deep ocean. The Iron Hypothesis isn't wrong, but it's much more subtle than usually stated, according to researchers.

New Evidence Ties Gene To Alzheimer's

Posted: 08 May 2009 05:00 PM PDT

Of dozens of candidates potentially involved in increasing a person's risk for the most common type of Alzheimer's disease that affects more than 5 million Americans over the age of 65, one gene that keeps grabbing researchers' attention makes a protein called neuroglobin.

Advanced Mechanical Horse Built For Therapy

Posted: 08 May 2009 05:00 PM PDT

While hippotherapy works to improve the quality of life for children and adults with physical and mental impairments through riding a horse, just getting some patients onto the horse can be a major obstacle. But now, researchers have built a custom mechanical horse to help those with physical and mental impairments get the same benefit from hippotherapy without having to actually get on to a horse.

Vibration Plate Machines May Aid Weight Loss And Trim Abdominal Fat

Posted: 08 May 2009 05:00 PM PDT

New research suggests that, if used properly, vibration plate exercise machines may help you lose weight and trim the particularly harmful belly fat between the organs. Scientists found that overweight or obese people who regularly used the equipment in combination with a calorie restricted diet were more successful at long-term weight loss than those who combined dieting with a more conventional fitness routine.

Filling The Gap In The Fossil Record

Posted: 08 May 2009 05:00 PM PDT

The Neoproterozoic interval of "hidden" evolution refers to a gap of unknown duration between the time when animals first evolved (uncertain) and the oldest known fossil or geochemical evidence of animals (latest Neoproterozoic, about 600-650 million years ago).

What Teens Don't Know About OTC Medications Can Hurt Them

Posted: 08 May 2009 05:00 PM PDT

Teens, who are starting to make more decisions about their own health care, may not know enough about over-the-counter pain medications to avoid complications or inadvertent misuse, according to new research.

Pollination Crisis 'A Myth': Honeybees Are On The Rise, But Demand Grows Faster

Posted: 08 May 2009 02:00 PM PDT

The notion that a decline in pollinators may threaten the human food supply -- producing a situation that has been referred to as a "pollination crisis" -- can be considered a myth, at least where honeybees are concerned, researchers report. First of all, most agricultural crop production does not depend on pollinators. On top of that, while honeybees may be dwindling in some parts of the world, the number of domesticated bees world-wide is actually on the rise, their new report shows.

Possible Link Between Childhood Obesity And Allergies

Posted: 08 May 2009 02:00 PM PDT

There may be yet another reason to reduce childhood obesity -- it may help prevent allergies. Obese children and adolescents are at increased risk of having some kind of allergy, especially to a food. according to new research.

From Rats To Humans: Around Thirty Europeans Infected With Cowpox Virus By Their Pet Rats

Posted: 08 May 2009 02:00 PM PDT

Around thirty Europeans, including twenty French citizens, have recently contracted a viral infection linked to their pet rat.

Patients With Resolved Hepatitis C Likely Still Contagious

Posted: 08 May 2009 02:00 PM PDT

Patients with chronic hepatitis C that has been resolved through therapy or immune response may still be able to infect others with the virus.

Will America's Power Grid Be Able To Keep Pace With Future Demand?

Posted: 08 May 2009 02:00 PM PDT

America's power grid today resembles the country's canal system of the 19th Century. A marvel of engineering for its time, the canal system eventually could not keep pace with the growing demands of transcontinental transportation.

Childproofing: Furniture Tip-over Injuries Rising

Posted: 08 May 2009 02:00 PM PDT

Every day, about 40 young kids are rushed to the emergency room with injuries after a heavy piece of furniture -- a TV, a bookcase, etc. -- has fallen on them. A new study finds the number of injured children is rising significantly.

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